diff options
Diffstat (limited to 'src/service/transport')
126 files changed, 44671 insertions, 0 deletions
diff --git a/src/service/transport/.gitignore b/src/service/transport/.gitignore new file mode 100644 index 000000000..163ffbd5d --- /dev/null +++ b/src/service/transport/.gitignore | |||
@@ -0,0 +1,94 @@ | |||
1 | gnunet-transport-wlan-sender | ||
2 | gnunet-helper-transport-bluetooth | ||
3 | gnunet-helper-transport-wlan | ||
4 | gnunet-helper-transport-wlan-dummy | ||
5 | gnunet-service-transport | ||
6 | gnunet-transport | ||
7 | gnunet-transport-certificate-creation | ||
8 | gnunet-transport-profiler | ||
9 | gnunet-transport-wlan-receiver | ||
10 | https_cert_qutoa_p2.crt | ||
11 | https_key_quota_p2.key | ||
12 | test_http_common | ||
13 | test_plugin_bluetooth | ||
14 | test_plugin_http_client | ||
15 | test_plugin_http_server | ||
16 | test_plugin_https_client | ||
17 | test_plugin_https_server | ||
18 | test_plugin_tcp | ||
19 | test_plugin_udp | ||
20 | test_plugin_unix | ||
21 | test_plugin_wlan | ||
22 | test_quota_compliance_bluetooth | ||
23 | test_quota_compliance_bluetooth_asymmetric | ||
24 | test_quota_compliance_http | ||
25 | test_quota_compliance_http_asymmetric | ||
26 | test_quota_compliance_https | ||
27 | test_quota_compliance_https_asymmetric | ||
28 | test_quota_compliance_tcp | ||
29 | test_quota_compliance_tcp_asymmetric | ||
30 | test_quota_compliance_udp | ||
31 | test_quota_compliance_unix | ||
32 | test_quota_compliance_unix_asymmetric | ||
33 | test_quota_compliance_wlan | ||
34 | test_quota_compliance_wlan_asymmetric | ||
35 | test_transport_address_switch_http | ||
36 | test_transport_address_switch_https | ||
37 | test_transport_address_switch_tcp | ||
38 | test_transport_address_switch_udp | ||
39 | test_transport_api_blacklisting_tcp | ||
40 | test_transport_api_bluetooth | ||
41 | test_transport_api_disconnect_tcp | ||
42 | test_transport_api_http | ||
43 | test_transport_api_http_reverse | ||
44 | test_transport_api_https | ||
45 | test_transport_api_limited_sockets_tcp | ||
46 | test_transport_api_manipulation_cfg | ||
47 | test_transport_api_manipulation_recv_tcp | ||
48 | test_transport_api_manipulation_send_tcp | ||
49 | test_transport_api_monitor_peers | ||
50 | test_transport_api_multi | ||
51 | test_transport_api_reliability_bluetooth | ||
52 | test_transport_api_reliability_http | ||
53 | test_transport_api_reliability_http_xhr | ||
54 | test_transport_api_reliability_https | ||
55 | test_transport_api_reliability_https_xhr | ||
56 | test_transport_api_reliability_tcp | ||
57 | test_transport_api_reliability_tcp_nat | ||
58 | test_transport_api_reliability_udp | ||
59 | test_transport_api_reliability_unix | ||
60 | test_transport_api_reliability_wlan | ||
61 | test_transport_api_restart_1peer | ||
62 | test_transport_api_restart_2peers | ||
63 | test_transport_api_slow_ats | ||
64 | test_transport_api_tcp | ||
65 | test_transport_api_tcp_nat | ||
66 | test_transport_api_timeout_bluetooth | ||
67 | test_transport_api_timeout_http | ||
68 | test_transport_api_timeout_https | ||
69 | test_transport_api_timeout_tcp | ||
70 | test_transport_api_timeout_udp | ||
71 | test_transport_api_timeout_unix | ||
72 | test_transport_api_timeout_wlan | ||
73 | test_transport_api_udp | ||
74 | test_transport_api_udp_nat | ||
75 | test_transport_api_unix | ||
76 | test_transport_api_unix_abstract | ||
77 | test_transport_api_wlan | ||
78 | test_transport_blacklisting_inbound_bl_full | ||
79 | test_transport_blacklisting_inbound_bl_plugin | ||
80 | test_transport_blacklisting_multiple_plugins | ||
81 | test_transport_blacklisting_no_bl | ||
82 | test_transport_blacklisting_outbound_bl_full | ||
83 | test_transport_blacklisting_outbound_bl_plugin | ||
84 | test_transport_testing_restart | ||
85 | test_transport_testing_startstop | ||
86 | gnunet-communicator-unix | ||
87 | gnunet-service-tng | ||
88 | gnunet-communicator-tcp | ||
89 | gnunet-communicator-udp | ||
90 | test_communicator_basic-* | ||
91 | test_communicator_rekey-* | ||
92 | test_transport_start_with_config | ||
93 | test_transport_api2_tcp | ||
94 | gnunet-communicator-quic | ||
diff --git a/src/service/transport/Makefile.am b/src/service/transport/Makefile.am new file mode 100644 index 000000000..a78371f10 --- /dev/null +++ b/src/service/transport/Makefile.am | |||
@@ -0,0 +1,458 @@ | |||
1 | # This Makefile.am is in the public domain | ||
2 | AM_CPPFLAGS = -I$(top_srcdir)/src/include -I$(top_builddir)/src/include | ||
3 | |||
4 | plugindir = $(libdir)/gnunet | ||
5 | |||
6 | pkgcfgdir= $(pkgdatadir)/config.d/ | ||
7 | |||
8 | libexecdir= $(pkglibdir)/libexec/ | ||
9 | |||
10 | pkgcfg_DATA = \ | ||
11 | transport.conf | ||
12 | |||
13 | if USE_COVERAGE | ||
14 | AM_CFLAGS = --coverage -O0 | ||
15 | endif | ||
16 | |||
17 | noinst_PROGRAMS = \ | ||
18 | test_transport_start_with_config \ | ||
19 | gnunet-communicator-udp | ||
20 | |||
21 | TESTING_LIBS = \ | ||
22 | libgnunettransporttesting2.la | ||
23 | |||
24 | lib_LTLIBRARIES = \ | ||
25 | libgnunettransportapplication.la \ | ||
26 | libgnunettransportcore.la \ | ||
27 | libgnunettransportcommunicator.la \ | ||
28 | libgnunettransportmonitor.la \ | ||
29 | $(TESTING_LIBS) | ||
30 | |||
31 | libgnunettransporttesting2_la_SOURCES = \ | ||
32 | transport_api_traits.c \ | ||
33 | testing_api_cmd_stop_peer.c \ | ||
34 | testing_api_cmd_start_peer.c \ | ||
35 | transport_api_cmd_connecting_peers.c \ | ||
36 | transport_api_cmd_backchannel_check.c \ | ||
37 | transport_api_cmd_start_peer.c \ | ||
38 | transport_api_cmd_stop_peer.c \ | ||
39 | transport_api_cmd_send_simple.c \ | ||
40 | transport_api_cmd_send_simple_performance.c \ | ||
41 | transport-testing2.c transport-testing2.h \ | ||
42 | transport-testing-cmds.h \ | ||
43 | transport-testing-filenames2.c \ | ||
44 | transport-testing-loggers2.c \ | ||
45 | transport-testing-main2.c \ | ||
46 | transport-testing-send2.c \ | ||
47 | transport-testing-communicator.c transport-testing-communicator.h | ||
48 | libgnunettransporttesting2_la_LIBADD = \ | ||
49 | libgnunettransportapplication.la \ | ||
50 | libgnunettransportcore.la \ | ||
51 | $(top_builddir)/src/service/arm/libgnunetarm.la \ | ||
52 | $(top_builddir)/src/lib/testing/libgnunettesting.la \ | ||
53 | $(top_builddir)/src/lib/hello/libgnunethello.la \ | ||
54 | $(top_builddir)/src/service/peerstore/libgnunetpeerstore.la \ | ||
55 | $(top_builddir)/src/lib/util/libgnunetutil.la | ||
56 | libgnunettransporttesting2_la_LDFLAGS = \ | ||
57 | $(GN_LIBINTL) \ | ||
58 | $(GN_LIB_LDFLAGS) \ | ||
59 | -version-info 0:0:0 | ||
60 | |||
61 | libgnunettransportapplication_la_SOURCES = \ | ||
62 | transport_api2_application.c | ||
63 | libgnunettransportapplication_la_LIBADD = \ | ||
64 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
65 | $(LTLIBINTL) | ||
66 | libgnunettransportapplication_la_LDFLAGS = \ | ||
67 | $(GN_LIB_LDFLAGS) \ | ||
68 | -version-info 0:0:0 | ||
69 | |||
70 | |||
71 | libgnunettransportcore_la_SOURCES = \ | ||
72 | transport_api2_core.c | ||
73 | libgnunettransportcore_la_LIBADD = \ | ||
74 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
75 | $(GN_LIBINTL) | ||
76 | libgnunettransportcore_la_LDFLAGS = \ | ||
77 | $(GN_LIB_LDFLAGS) \ | ||
78 | -version-info 0:0:0 | ||
79 | |||
80 | libgnunettransportcommunicator_la_SOURCES = \ | ||
81 | transport_api2_communication.c | ||
82 | libgnunettransportcommunicator_la_LIBADD = \ | ||
83 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
84 | $(GN_LIBINTL) | ||
85 | libgnunettransportcommunicator_la_LDFLAGS = \ | ||
86 | $(GN_LIB_LDFLAGS) \ | ||
87 | -version-info 0:0:0 | ||
88 | |||
89 | |||
90 | libgnunettransportmonitor_la_SOURCES = \ | ||
91 | transport_api2_monitor.c | ||
92 | libgnunettransportmonitor_la_LIBADD = \ | ||
93 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
94 | $(GN_LIBINTL) | ||
95 | libgnunettransportmonitor_la_LDFLAGS = \ | ||
96 | $(GN_LIB_LDFLAGS) \ | ||
97 | -version-info 0:0:0 | ||
98 | |||
99 | |||
100 | libexec_PROGRAMS = \ | ||
101 | gnunet-service-transport \ | ||
102 | gnunet-communicator-unix \ | ||
103 | gnunet-communicator-udp \ | ||
104 | gnunet-communicator-tcp | ||
105 | if HAVE_EXPERIMENTAL | ||
106 | if HAVE_QUICHE | ||
107 | libexec_PROGRAMS += \ | ||
108 | gnunet-communicator-quic | ||
109 | endif | ||
110 | endif | ||
111 | |||
112 | |||
113 | #bin_PROGRAMS = \ | ||
114 | # gnunet-transport | ||
115 | |||
116 | bin_SCRIPTS = \ | ||
117 | gnunet-transport-certificate-creation | ||
118 | |||
119 | # See: https://www.gnu.org/software/automake/manual/html_node/Scripts.html#Scripts | ||
120 | do_subst = sed -e 's,[@]pkgdatadir[@],$(pkgdatadir),g' | ||
121 | |||
122 | |||
123 | gnunet-transport-certificate-creation: gnunet-transport-certificate-creation.in Makefile | ||
124 | $(AWK) -v bdir="$(bindir)" -v py="$(PYTHON)" -v awkay="$(AWK_BINARY)" -v pfx="$(prefix)" -v prl="$(PERL)" -v sysconfdirectory="$(sysconfdir)" -v pkgdatadirectory="$(pkgdatadir)" -f $(top_srcdir)/scripts/dosubst.awk < $(srcdir)/gnunet-transport-certificate-creation.in > gnunet-transport-certificate-creation | ||
125 | @chmod +x gnunet-transport-certificate-creation | ||
126 | |||
127 | |||
128 | |||
129 | |||
130 | gnunet_communicator_unix_SOURCES = \ | ||
131 | gnunet-communicator-unix.c | ||
132 | gnunet_communicator_unix_LDADD = \ | ||
133 | libgnunettransportcommunicator.la \ | ||
134 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la \ | ||
135 | $(top_builddir)/src/lib/util/libgnunetutil.la | ||
136 | |||
137 | gnunet_communicator_tcp_SOURCES = \ | ||
138 | gnunet-communicator-tcp.c | ||
139 | gnunet_communicator_tcp_LDADD = \ | ||
140 | libgnunettransportcommunicator.la \ | ||
141 | $(top_builddir)/src/service/peerstore/libgnunetpeerstore.la \ | ||
142 | $(top_builddir)/src/service/nat/libgnunetnatnew.la \ | ||
143 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la \ | ||
144 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
145 | $(LIBGCRYPT_LIBS) | ||
146 | |||
147 | gnunet_communicator_udp_SOURCES = \ | ||
148 | gnunet-communicator-udp.c | ||
149 | gnunet_communicator_udp_LDADD = \ | ||
150 | libgnunettransportapplication.la \ | ||
151 | libgnunettransportcommunicator.la \ | ||
152 | $(top_builddir)/src/service/nat/libgnunetnatnew.la \ | ||
153 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la \ | ||
154 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
155 | $(LIBGCRYPT_LIBS) | ||
156 | |||
157 | if HAVE_EXPERIMENTAL | ||
158 | if HAVE_QUICHE | ||
159 | gnunet_communicator_quic_SOURCES = \ | ||
160 | gnunet-communicator-quic.c | ||
161 | gnunet_communicator_quic_LDADD = \ | ||
162 | libgnunettransportapplication.la \ | ||
163 | libgnunettransportcommunicator.la \ | ||
164 | $(top_builddir)/src/service/peerstore/libgnunetpeerstore.la \ | ||
165 | $(top_builddir)/src/service/nat/libgnunetnatnew.la \ | ||
166 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la \ | ||
167 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
168 | -lquiche \ | ||
169 | $(LIBGCRYPT_LIBS) | ||
170 | endif | ||
171 | endif | ||
172 | |||
173 | #gnunet_transport_SOURCES = \ | ||
174 | # gnunet-transport.c | ||
175 | #gnunet_transport_LDADD = \ | ||
176 | # libgnunettransport.la \ | ||
177 | # $(top_builddir)/src/lib/hello/libgnunethello.la \ | ||
178 | # $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
179 | # $(GN_LIBINTL) | ||
180 | |||
181 | gnunet_service_transport_SOURCES = \ | ||
182 | gnunet-service-transport.c transport.h | ||
183 | gnunet_service_transport_LDADD = \ | ||
184 | $(top_builddir)/src/service/peerstore/libgnunetpeerstore.la \ | ||
185 | $(top_builddir)/src/lib/hello/libgnunethello.la \ | ||
186 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la \ | ||
187 | $(top_builddir)/src/service/nat/libgnunetnatnew.la \ | ||
188 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
189 | $(LIBGCRYPT_LIBS) \ | ||
190 | $(GN_LIBINTL) | ||
191 | |||
192 | plugin_LTLIBRARIES = \ | ||
193 | libgnunet_test_transport_plugin_cmd_simple_send_performance.la \ | ||
194 | libgnunet_test_transport_plugin_cmd_nat_upnp.la \ | ||
195 | libgnunet_test_transport_plugin_cmd_simple_send.la \ | ||
196 | libgnunet_test_transport_plugin_cmd_simple_send_broadcast.la \ | ||
197 | libgnunet_test_transport_plugin_cmd_simple_send_dv.la \ | ||
198 | libgnunet_test_transport_plugin_cmd_udp_backchannel.la | ||
199 | |||
200 | libgnunet_test_transport_plugin_cmd_nat_upnp_la_SOURCES = \ | ||
201 | test_transport_plugin_cmd_nat_upnp.c | ||
202 | libgnunet_test_transport_plugin_cmd_nat_upnp_la_LIBADD = \ | ||
203 | libgnunettransporttesting2.la \ | ||
204 | libgnunettransportapplication.la \ | ||
205 | libgnunettransportcore.la \ | ||
206 | $(top_builddir)/src/lib/testing/libgnunettesting.la \ | ||
207 | $(top_builddir)/src/service/peerstore/libgnunetpeerstore.la \ | ||
208 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la \ | ||
209 | $(top_builddir)/src/lib/hello/libgnunethello.la \ | ||
210 | $(top_builddir)/src/service/arm/libgnunetarm.la \ | ||
211 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
212 | $(LTLIBINTL) | ||
213 | libgnunet_test_transport_plugin_cmd_nat_upnp_la_LDFLAGS = \ | ||
214 | $(GN_PLUGIN_LDFLAGS) | ||
215 | |||
216 | libgnunet_test_transport_plugin_cmd_udp_backchannel_la_SOURCES = \ | ||
217 | test_transport_plugin_cmd_udp_backchannel.c | ||
218 | libgnunet_test_transport_plugin_cmd_udp_backchannel_la_LIBADD = \ | ||
219 | libgnunettransporttesting2.la \ | ||
220 | libgnunettransportapplication.la \ | ||
221 | libgnunettransportcore.la \ | ||
222 | $(top_builddir)/src/lib/testing/libgnunettesting.la \ | ||
223 | $(top_builddir)/src/service/peerstore/libgnunetpeerstore.la \ | ||
224 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la \ | ||
225 | $(top_builddir)/src/lib/hello/libgnunethello.la \ | ||
226 | $(top_builddir)/src/service/arm/libgnunetarm.la \ | ||
227 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
228 | $(LTLIBINTL) | ||
229 | libgnunet_test_transport_plugin_cmd_udp_backchannel_la_LDFLAGS = \ | ||
230 | $(GN_PLUGIN_LDFLAGS) | ||
231 | |||
232 | libgnunet_test_transport_plugin_cmd_simple_send_la_SOURCES = \ | ||
233 | test_transport_plugin_cmd_simple_send.c | ||
234 | libgnunet_test_transport_plugin_cmd_simple_send_la_LIBADD = \ | ||
235 | libgnunettransporttesting2.la \ | ||
236 | libgnunettransportapplication.la \ | ||
237 | libgnunettransportcore.la \ | ||
238 | $(top_builddir)/src/lib/testing/libgnunettesting.la \ | ||
239 | $(top_builddir)/src/service/peerstore/libgnunetpeerstore.la \ | ||
240 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la \ | ||
241 | $(top_builddir)/src/lib/hello/libgnunethello.la \ | ||
242 | $(top_builddir)/src/service/arm/libgnunetarm.la \ | ||
243 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
244 | $(LTLIBINTL) | ||
245 | libgnunet_test_transport_plugin_cmd_simple_send_la_LDFLAGS = \ | ||
246 | $(GN_PLUGIN_LDFLAGS) | ||
247 | |||
248 | libgnunet_test_transport_plugin_cmd_simple_send_performance_la_SOURCES = \ | ||
249 | test_transport_plugin_cmd_simple_send_performance.c | ||
250 | libgnunet_test_transport_plugin_cmd_simple_send_performance_la_LIBADD = \ | ||
251 | libgnunettransporttesting2.la \ | ||
252 | libgnunettransportapplication.la \ | ||
253 | libgnunettransportcore.la \ | ||
254 | $(top_builddir)/src/lib/testing/libgnunettesting.la \ | ||
255 | $(top_builddir)/src/service/peerstore/libgnunetpeerstore.la \ | ||
256 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la \ | ||
257 | $(top_builddir)/src/lib/hello/libgnunethello.la \ | ||
258 | $(top_builddir)/src/service/arm/libgnunetarm.la \ | ||
259 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
260 | $(LTLIBINTL) | ||
261 | libgnunet_test_transport_plugin_cmd_simple_send_performance_la_LDFLAGS = \ | ||
262 | $(GN_PLUGIN_LDFLAGS) | ||
263 | |||
264 | libgnunet_test_transport_plugin_cmd_simple_send_broadcast_la_SOURCES = \ | ||
265 | test_transport_plugin_cmd_simple_send_broadcast.c | ||
266 | libgnunet_test_transport_plugin_cmd_simple_send_broadcast_la_LIBADD = \ | ||
267 | libgnunettransporttesting2.la \ | ||
268 | libgnunettransportapplication.la \ | ||
269 | libgnunettransportcore.la \ | ||
270 | $(top_builddir)/src/lib/testing/libgnunettesting.la \ | ||
271 | $(top_builddir)/src/service/peerstore/libgnunetpeerstore.la \ | ||
272 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la \ | ||
273 | $(top_builddir)/src/lib/hello/libgnunethello.la \ | ||
274 | $(top_builddir)/src/service/arm/libgnunetarm.la \ | ||
275 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
276 | $(LTLIBINTL) | ||
277 | libgnunet_test_transport_plugin_cmd_simple_send_broadcast_la_LDFLAGS = \ | ||
278 | $(GN_PLUGIN_LDFLAGS) | ||
279 | |||
280 | libgnunet_test_transport_plugin_cmd_simple_send_dv_la_SOURCES = \ | ||
281 | test_transport_plugin_cmd_simple_send_dv.c | ||
282 | libgnunet_test_transport_plugin_cmd_simple_send_dv_la_LIBADD = \ | ||
283 | libgnunettransporttesting2.la \ | ||
284 | libgnunettransportapplication.la \ | ||
285 | libgnunettransportcore.la \ | ||
286 | $(top_builddir)/src/lib/testing/libgnunettesting.la \ | ||
287 | $(top_builddir)/src/service/peerstore/libgnunetpeerstore.la \ | ||
288 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la \ | ||
289 | $(top_builddir)/src/lib/hello/libgnunethello.la \ | ||
290 | $(top_builddir)/src/service/arm/libgnunetarm.la \ | ||
291 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
292 | $(LTLIBINTL) | ||
293 | libgnunet_test_transport_plugin_cmd_simple_send_dv_la_LDFLAGS = \ | ||
294 | $(GN_PLUGIN_LDFLAGS) | ||
295 | |||
296 | check_PROGRAMS = \ | ||
297 | test_communicator_basic-tcp \ | ||
298 | test_communicator_basic-udp \ | ||
299 | test_communicator_rekey-tcp \ | ||
300 | test_communicator_bidirect-tcp \ | ||
301 | test_communicator_rekey-udp \ | ||
302 | test_communicator_backchannel-udp | ||
303 | |||
304 | if HAVE_EXPERIMENTAL | ||
305 | check_PROGRAMS += test_communicator_basic-quic \ | ||
306 | test_communicator_basic-unix | ||
307 | check_SCRIPTS= \ | ||
308 | test_transport_start_testcase.sh \ | ||
309 | test_transport_simple_send_performance.sh \ | ||
310 | test_transport_nat_icmp_tcp.sh \ | ||
311 | test_transport_nat_upnp.sh \ | ||
312 | test_transport_simple_send_string.sh \ | ||
313 | test_transport_simple_send.sh \ | ||
314 | test_transport_simple_send_broadcast.sh \ | ||
315 | test_transport_udp_backchannel.sh \ | ||
316 | test_transport_simple_send_dv_circle.sh \ | ||
317 | test_transport_simple_send_dv_inverse.sh | ||
318 | endif | ||
319 | |||
320 | if ENABLE_TEST_RUN | ||
321 | AM_TESTS_ENVIRONMENT=export GNUNET_PREFIX=$${GNUNET_PREFIX:-@libdir@};export PATH=$${GNUNET_PREFIX:-@prefix@}/bin:$$PATH;unset XDG_DATA_HOME;unset XDG_CONFIG_HOME; | ||
322 | TESTS = \ | ||
323 | $(check_SCRIPTS) \ | ||
324 | $(check_PROGRAMS) | ||
325 | endif | ||
326 | |||
327 | |||
328 | test_transport_start_with_config_SOURCES = \ | ||
329 | test_transport_start_with_config.c | ||
330 | test_transport_start_with_config_LDADD = \ | ||
331 | $(top_builddir)/src/lib/testing/libgnunettesting.la \ | ||
332 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
333 | $(top_builddir)/src/lib/hello/libgnunethello.la \ | ||
334 | libgnunettransportcore.la \ | ||
335 | libgnunettransporttesting2.la | ||
336 | |||
337 | test_communicator_basic_unix_SOURCES = \ | ||
338 | test_communicator_basic.c | ||
339 | test_communicator_basic_unix_LDADD = \ | ||
340 | libgnunettransporttesting2.la \ | ||
341 | $(top_builddir)/src/lib/testing/libgnunettesting.la \ | ||
342 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
343 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la | ||
344 | |||
345 | test_communicator_basic_tcp_SOURCES = \ | ||
346 | test_communicator_basic.c | ||
347 | test_communicator_basic_tcp_LDADD = \ | ||
348 | libgnunettransporttesting2.la \ | ||
349 | $(top_builddir)/src/lib/testing/libgnunettesting.la \ | ||
350 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
351 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la | ||
352 | |||
353 | test_communicator_basic_udp_SOURCES = \ | ||
354 | test_communicator_basic.c | ||
355 | test_communicator_basic_udp_LDADD = \ | ||
356 | libgnunettransporttesting2.la \ | ||
357 | $(top_builddir)/src/lib/testing/libgnunettesting.la \ | ||
358 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
359 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la | ||
360 | |||
361 | test_communicator_basic_quic_SOURCES = \ | ||
362 | test_communicator_basic.c | ||
363 | test_communicator_basic_quic_LDADD = \ | ||
364 | libgnunettransporttesting2.la \ | ||
365 | $(top_builddir)/src/lib/testing/libgnunettesting.la \ | ||
366 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
367 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la | ||
368 | |||
369 | test_communicator_rekey_tcp_SOURCES = \ | ||
370 | test_communicator_basic.c | ||
371 | test_communicator_rekey_tcp_LDADD = \ | ||
372 | libgnunettransporttesting2.la \ | ||
373 | $(top_builddir)/src/lib/testing/libgnunettesting.la \ | ||
374 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
375 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la | ||
376 | |||
377 | test_communicator_rekey_udp_SOURCES = \ | ||
378 | test_communicator_basic.c | ||
379 | test_communicator_rekey_udp_LDADD = \ | ||
380 | libgnunettransporttesting2.la \ | ||
381 | $(top_builddir)/src/lib/testing/libgnunettesting.la \ | ||
382 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
383 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la | ||
384 | |||
385 | test_communicator_backchannel_udp_SOURCES = \ | ||
386 | test_communicator_basic.c | ||
387 | test_communicator_backchannel_udp_LDADD = \ | ||
388 | libgnunettransporttesting2.la \ | ||
389 | $(top_builddir)/src/lib/testing/libgnunettesting.la \ | ||
390 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
391 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la | ||
392 | |||
393 | test_communicator_bidirect_tcp_SOURCES = \ | ||
394 | test_communicator_basic.c | ||
395 | test_communicator_bidirect_tcp_LDADD = \ | ||
396 | libgnunettransporttesting2.la \ | ||
397 | $(top_builddir)/src/lib/testing/libgnunettesting.la \ | ||
398 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
399 | $(top_builddir)/src/service/statistics/libgnunetstatistics.la | ||
400 | |||
401 | test_transport_api2_tcp_SOURCES = \ | ||
402 | test_transport_api2.c | ||
403 | test_transport_api2_tcp_LDADD = \ | ||
404 | $(top_builddir)/src/lib/hello/libgnunethello.la \ | ||
405 | $(top_builddir)/src/lib/util/libgnunetutil.la \ | ||
406 | libgnunettransporttesting2.la | ||
407 | |||
408 | EXTRA_DIST = \ | ||
409 | test_transport_start_testcase.sh \ | ||
410 | test_transport_simple_send_performance.sh \ | ||
411 | test_transport_nat_icmp_tcp.sh \ | ||
412 | test_transport_nat_upnp.sh \ | ||
413 | test_transport_simple_send_string.sh \ | ||
414 | test_transport_simple_send.sh \ | ||
415 | test_transport_simple_send_broadcast.sh \ | ||
416 | test_transport_udp_backchannel.sh \ | ||
417 | test_transport_simple_send_dv_circle.sh \ | ||
418 | test_transport_simple_send_dv_inverse.sh \ | ||
419 | gnunet-transport-certificate-creation.in \ | ||
420 | test_plugin_hostkey \ | ||
421 | test_plugin_hostkey.ecc \ | ||
422 | test_delay \ | ||
423 | template_cfg_peer1.conf\ | ||
424 | template_cfg_peer2.conf\ | ||
425 | test_transport_api_data.conf\ | ||
426 | test_transport_api_multi_peer1.conf\ | ||
427 | test_transport_api_multi_peer2.conf\ | ||
428 | test_transport_api_tcp_nat_peer1.conf\ | ||
429 | test_transport_api_tcp_nat_peer2.conf\ | ||
430 | test_transport_api_tcp_peer1.conf\ | ||
431 | test_transport_api_tcp_peer2.conf\ | ||
432 | test_transport_api2_tcp_peer1.conf\ | ||
433 | test_transport_api2_tcp_peer2.conf\ | ||
434 | test_transport_api_udp_nat_peer1.conf\ | ||
435 | test_transport_api_udp_nat_peer2.conf\ | ||
436 | test_transport_api_udp_peer1.conf\ | ||
437 | test_transport_api_udp_peer2.conf\ | ||
438 | test_transport_api_unix_peer1.conf\ | ||
439 | test_transport_api_unix_peer2.conf\ | ||
440 | test_transport_api_monitor_peers_peer1.conf\ | ||
441 | test_transport_api_monitor_peers_peer2.conf\ | ||
442 | test_transport_api_monitor_validation_peer1.conf\ | ||
443 | test_transport_api_monitor_validation_peer2.conf\ | ||
444 | test_transport_defaults.conf\ | ||
445 | test_communicator_unix_basic_peer1.conf \ | ||
446 | test_communicator_unix_basic_peer2.conf \ | ||
447 | test_communicator_tcp_basic_peer1.conf \ | ||
448 | test_communicator_tcp_basic_peer2.conf \ | ||
449 | test_communicator_udp_basic_peer1.conf \ | ||
450 | test_communicator_udp_basic_peer2.conf \ | ||
451 | test_communicator_tcp_rekey_peer1.conf \ | ||
452 | test_communicator_tcp_rekey_peer2.conf \ | ||
453 | test_communicator_udp_rekey_peer1.conf \ | ||
454 | test_communicator_udp_rekey_peer2.conf \ | ||
455 | test_communicator_udp_backchannel_peer1.conf \ | ||
456 | test_communicator_udp_backchannel_peer2.conf \ | ||
457 | test_communicator_tcp_bidirect_peer1.conf \ | ||
458 | test_communicator_tcp_bidirect_peer2.conf | ||
diff --git a/src/service/transport/NOTES b/src/service/transport/NOTES new file mode 100644 index 000000000..41404e1f9 --- /dev/null +++ b/src/service/transport/NOTES | |||
@@ -0,0 +1,46 @@ | |||
1 | KEY DESIGN CHOICES: | ||
2 | - who decides which connections to keep/create? | ||
3 | => higher level session/key management! | ||
4 | - who enforces things like F2F topology, etc? | ||
5 | => higher level session/key management! | ||
6 | - who tracks all known HELLOs & validates? | ||
7 | => We validate, PEERINFO tracks! | ||
8 | - who advertises our HELLO? | ||
9 | => us! (need background job; previously: advertising) | ||
10 | - who advertises other peers HELLOs? | ||
11 | => higher level (core?) | ||
12 | - who does bootstrapping? | ||
13 | => bootstrap service (external!) | ||
14 | - who enforces inbound bandwidth limits? | ||
15 | => transport-service and plugins! (previously: core); | ||
16 | either by limiting reads (TCP) or discarding packets | ||
17 | (transport-service) | ||
18 | - who enforces outbound bandwidth limits? | ||
19 | => transport_api! | ||
20 | - who decides outbound bandwidth limits? | ||
21 | => other peer, via core (need authenticated limits!) | ||
22 | - who decides inbound bandwidth limits? | ||
23 | => core / apps above core (need trust info) | ||
24 | - cost function for transports is latency estimate in ms | ||
25 | => plugin provides latency data, transport-service | ||
26 | selects plugin(s) for transmission | ||
27 | - who is responsible for fragmentation? | ||
28 | => plugins! (may use common shared library) | ||
29 | - should we require UDP to be reliable? | ||
30 | => NO. There are other places that may (rarely) | ||
31 | use messages that we can not fix | ||
32 | - how do we access the 50% of service that we need for TCP/UDP | ||
33 | from service.c without code replication or getting 50% | ||
34 | that we do not want (i.e. shutdown, pid-file-writing, etc.) | ||
35 | => use GNUNET_SERVICE_start/stop functions! | ||
36 | - At what level do we manage timeouts? | ||
37 | => At the plugin (TCP connections), | ||
38 | transport-service (neighbours) and | ||
39 | core (sessions) level! | ||
40 | => All plugins have to disconnect before service-level | ||
41 | disconnect occurs | ||
42 | => We can have a plugin-connection die, but the session | ||
43 | survives! | ||
44 | => We can have a session die (no further authenticated | ||
45 | communication) even if the plugin thinks it is still | ||
46 | up! | ||
diff --git a/src/service/transport/benchmark.sh b/src/service/transport/benchmark.sh new file mode 100755 index 000000000..a29e6ec2d --- /dev/null +++ b/src/service/transport/benchmark.sh | |||
@@ -0,0 +1,13 @@ | |||
1 | #!/bin/sh | ||
2 | |||
3 | for i in $(seq 1 0) | ||
4 | do | ||
5 | echo RUN $i | ||
6 | ./test_transport_api_reliability_http | ||
7 | done | ||
8 | |||
9 | for i in $(seq 1 100) | ||
10 | do | ||
11 | echo RUN $i | ||
12 | ./test_transport_api_reliability_https | ||
13 | done | ||
diff --git a/src/service/transport/communicator.h b/src/service/transport/communicator.h new file mode 100644 index 000000000..5ef43597d --- /dev/null +++ b/src/service/transport/communicator.h | |||
@@ -0,0 +1,138 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2009-2014 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/communicator.h | ||
23 | * @brief common internal definitions for communicator services | ||
24 | * @author Christian Grothoff | ||
25 | */ | ||
26 | #ifndef COMMUNICATOR_H | ||
27 | #define COMMUNICAOTR_H | ||
28 | |||
29 | #include "gnunet_util_lib.h" | ||
30 | #include "gnunet_protocols.h" | ||
31 | |||
32 | GNUNET_NETWORK_STRUCT_BEGIN | ||
33 | |||
34 | /** | ||
35 | * Message used to tell a communicator about a successful | ||
36 | * key exchange. | ||
37 | * | ||
38 | * Note that this style of KX acknowledgement typically only applies | ||
39 | * for communicators where the underlying network protocol is | ||
40 | * unidirectional and/or lacks cryptography. Furthermore, this is | ||
41 | * just the recommended "generic" style, communicators are always free | ||
42 | * to implement original designs that better fit their requirements. | ||
43 | */ | ||
44 | struct GNUNET_TRANSPORT_CommunicatorGenericKXConfirmation | ||
45 | { | ||
46 | /** | ||
47 | * Type is #GNUNET_MESSAGE_TYPE_TRANSPORT_COMMUNICATOR_KX_CONFIRMATION | ||
48 | */ | ||
49 | struct GNUNET_MessageHeader header; | ||
50 | |||
51 | /** | ||
52 | * Timestamp from the original sender which identifies the original KX. | ||
53 | */ | ||
54 | struct GNUNET_TIME_AbsoluteNBO monotonic_time; | ||
55 | |||
56 | /** | ||
57 | * How long does the receiver of the KX believe that the address | ||
58 | * on which the KX was received will continue to be valid. | ||
59 | */ | ||
60 | struct GNUNET_TIME_RelativeNBO validity; | ||
61 | |||
62 | /** | ||
63 | * Hash of the shared secret. Specific hash function may depend on | ||
64 | * the communicator's protocol details. | ||
65 | */ | ||
66 | struct GNUNET_HashCode token; | ||
67 | }; | ||
68 | |||
69 | |||
70 | /** | ||
71 | * Message used to tell a communicator about the receiver's | ||
72 | * flow control limits and to acknowledge receipt of certain | ||
73 | * messages. | ||
74 | * | ||
75 | * Note that a sender MAY choose to violate the flow-control | ||
76 | * limits provided in this message by a receiver, which may | ||
77 | * result in messages being lost (after all, transport is an | ||
78 | * unreliable channel). So if the sender violates these | ||
79 | * constraints, it should expect that the receive will simply | ||
80 | * discard the (partially) received "old" messages. | ||
81 | * | ||
82 | * This way, if a sender or receiver crashes, there is no protocol | ||
83 | * violation. | ||
84 | * | ||
85 | * Note that this style of flow control typically only applies | ||
86 | * for communicators where the underlying network protocol does | ||
87 | * not already implement flow control. Furthermore, this is | ||
88 | * just the recommended "generic" style, communicators are always | ||
89 | * free to implement original designs that better fit their | ||
90 | * requirements. | ||
91 | */ | ||
92 | struct GNUNET_TRANSPORT_CommunicatorGenericFCLimits | ||
93 | { | ||
94 | /** | ||
95 | * Type is #GNUNET_MESSAGE_TYPE_TRANSPORT_COMMUNICATOR_FC_LIMITS | ||
96 | */ | ||
97 | struct GNUNET_MessageHeader header; | ||
98 | |||
99 | /** | ||
100 | * Maximum number of messages beyond the acknowledged message | ||
101 | * number that can still be transmitted concurrently without | ||
102 | * further acknowledgements. | ||
103 | */ | ||
104 | uint32_t msg_window_size; | ||
105 | |||
106 | /** | ||
107 | * Up to which message number were all messages received. | ||
108 | */ | ||
109 | uint64_t msg_cummulative_ack; | ||
110 | |||
111 | /** | ||
112 | * Maximum number of payload bytes beyond the acknowledged | ||
113 | * number of bytes can still be transmitted without further | ||
114 | * acknowledgements. | ||
115 | */ | ||
116 | uint64_t bytes_window_size; | ||
117 | |||
118 | /** | ||
119 | * Cumulative acknowledgement for number of bytes received. | ||
120 | */ | ||
121 | uint64_t bytes_cummulative_ack; | ||
122 | |||
123 | /** | ||
124 | * Followed by a variable-size bitfield for messages received | ||
125 | * beyond @e msg_cummulative_ack. Index at offset 0 must thus | ||
126 | * be zero, otherwise @e msg_cummulative_ack should be | ||
127 | * increased. Note that this field can be overall of 0 bytes. | ||
128 | * The variable-size bitfield must be a multiple of 64 bits | ||
129 | * long. | ||
130 | */ | ||
131 | /* uint64_t msg_selective_ack_field[]; */ | ||
132 | }; | ||
133 | |||
134 | |||
135 | GNUNET_NETWORK_STRUCT_END | ||
136 | |||
137 | /* end of communicator.h */ | ||
138 | #endif | ||
diff --git a/src/service/transport/gnunet-communicator-quic.c b/src/service/transport/gnunet-communicator-quic.c new file mode 100644 index 000000000..0a7e511eb --- /dev/null +++ b/src/service/transport/gnunet-communicator-quic.c | |||
@@ -0,0 +1,1795 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2010-2014, 2018, 2019 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/gnunet-communicator-quic.c | ||
23 | * @brief Transport plugin using QUIC. | ||
24 | * @author Marshall Stone | ||
25 | * @author Martin Schanzenbach | ||
26 | * | ||
27 | * TODO: | ||
28 | * - Automatically generate self-signed x509 certificates and load from config | ||
29 | * - Figure out MTU and how we have to handle fragmentation in Quiche. | ||
30 | * - Mandate timeouts | ||
31 | * - Setup stats handler properly | ||
32 | * - Doxygen documentation of methods | ||
33 | * - Refactor code shared with UDP and TCP communicator | ||
34 | * - Performance testing | ||
35 | * - Check for memory leaks with coverity/valgrind | ||
36 | */ | ||
37 | #include "gnunet_common.h" | ||
38 | #include "gnunet_util_lib.h" | ||
39 | #include "gnunet_core_service.h" | ||
40 | #include "quiche.h" | ||
41 | #include "platform.h" | ||
42 | #include "gnunet_protocols.h" | ||
43 | #include "gnunet_signatures.h" | ||
44 | #include "gnunet_constants.h" | ||
45 | #include "gnunet_statistics_service.h" | ||
46 | #include "gnunet_transport_application_service.h" | ||
47 | #include "gnunet_transport_communication_service.h" | ||
48 | #include "gnunet_nat_service.h" | ||
49 | #include "stdint.h" | ||
50 | #include "inttypes.h" | ||
51 | |||
52 | #define COMMUNICATOR_CONFIG_SECTION "communicator-quic" | ||
53 | #define COMMUNICATOR_ADDRESS_PREFIX "quic" | ||
54 | #define MAX_DATAGRAM_SIZE 1350 | ||
55 | |||
56 | |||
57 | /* FIXME: Review all static lengths/contents below. Maybe this can be done smarter */ | ||
58 | /* Currently equivalent to QUICHE_MAX_CONN_ID_LEN */ | ||
59 | #define LOCAL_CONN_ID_LEN 20 | ||
60 | #define MAX_TOKEN_LEN \ | ||
61 | sizeof("quiche") - 1 \ | ||
62 | + sizeof(struct sockaddr_storage) \ | ||
63 | + QUICHE_MAX_CONN_ID_LEN | ||
64 | #define CID_LEN sizeof(uint8_t) * QUICHE_MAX_CONN_ID_LEN | ||
65 | #define TOKEN_LEN sizeof (uint8_t) * MAX_TOKEN_LEN | ||
66 | |||
67 | |||
68 | /* FIXME: Why 4? | ||
69 | Generic, bidirectional, client-initiated quic stream id */ | ||
70 | #define STREAMID_BI 4 | ||
71 | |||
72 | /** | ||
73 | * How long do we believe our addresses to remain up (before | ||
74 | * the other peer should revalidate). | ||
75 | */ | ||
76 | #define ADDRESS_VALIDITY_PERIOD GNUNET_TIME_UNIT_HOURS | ||
77 | |||
78 | /** | ||
79 | * Map of DCID (uint8_t) -> quic_conn for quickly retrieving connections to other peers. | ||
80 | */ | ||
81 | struct GNUNET_CONTAINER_MultiHashMap *conn_map; | ||
82 | |||
83 | /** | ||
84 | * Map of sockaddr -> struct PeerAddress | ||
85 | */ | ||
86 | struct GNUNET_CONTAINER_MultiHashMap *addr_map; | ||
87 | |||
88 | /** | ||
89 | * Handle to the config | ||
90 | */ | ||
91 | static const struct GNUNET_CONFIGURATION_Handle *cfg; | ||
92 | |||
93 | /** | ||
94 | * FIXME undocumented | ||
95 | */ | ||
96 | static struct GNUNET_TIME_Relative rekey_interval; | ||
97 | |||
98 | /** | ||
99 | * FIXME undocumented | ||
100 | */ | ||
101 | static struct GNUNET_NETWORK_Handle *udp_sock; | ||
102 | |||
103 | /** | ||
104 | * FIXME undocumented | ||
105 | */ | ||
106 | static struct GNUNET_SCHEDULER_Task *read_task; | ||
107 | |||
108 | /** | ||
109 | * FIXME undocumented | ||
110 | */ | ||
111 | static struct GNUNET_TRANSPORT_CommunicatorHandle *ch; | ||
112 | |||
113 | /** | ||
114 | * FIXME undocumented | ||
115 | */ | ||
116 | static struct GNUNET_TRANSPORT_ApplicationHandle *ah; | ||
117 | |||
118 | /** | ||
119 | * FIXME undocumented | ||
120 | */ | ||
121 | static int have_v6_socket; | ||
122 | |||
123 | /** | ||
124 | * FIXME undocumented | ||
125 | */ | ||
126 | static uint16_t my_port; | ||
127 | |||
128 | /** | ||
129 | * FIXME undocumented | ||
130 | */ | ||
131 | static unsigned long long rekey_max_bytes; | ||
132 | |||
133 | /** | ||
134 | * FIXME undocumented | ||
135 | */ | ||
136 | static quiche_config *config = NULL; | ||
137 | |||
138 | /** | ||
139 | * Our peer identity | ||
140 | */ | ||
141 | struct GNUNET_PeerIdentity my_identity; | ||
142 | |||
143 | /** | ||
144 | * Our private key. | ||
145 | */ | ||
146 | static struct GNUNET_CRYPTO_EddsaPrivateKey *my_private_key; | ||
147 | |||
148 | /** | ||
149 | * Connection to NAT service. | ||
150 | */ | ||
151 | static struct GNUNET_NAT_Handle *nat; | ||
152 | |||
153 | /** | ||
154 | * Information we track per peer we have recently been in contact with. | ||
155 | * | ||
156 | * (Since quiche handles crypto, handshakes, etc. we don't differentiate | ||
157 | * between SenderAddress and ReceiverAddress) | ||
158 | * FIXME: But we do a handshake as well. The flag in this struct seems to | ||
159 | * indicate this. Update comment! | ||
160 | */ | ||
161 | struct PeerAddress | ||
162 | { | ||
163 | /** | ||
164 | * To whom are we talking to. | ||
165 | */ | ||
166 | struct GNUNET_PeerIdentity target; | ||
167 | |||
168 | /** | ||
169 | * Flag to indicate whether we know the PeerIdentity (target) yet | ||
170 | */ | ||
171 | int id_rcvd; | ||
172 | |||
173 | /** | ||
174 | * Flag to indicate whether we have sent OUR PeerIdentity to this peer | ||
175 | */ | ||
176 | int id_sent; | ||
177 | |||
178 | /** | ||
179 | * Flag to indicate if we are the initiator of the connection | ||
180 | */ | ||
181 | int is_receiver; | ||
182 | |||
183 | /** | ||
184 | * Address of the receiver in the human-readable format | ||
185 | * with the #COMMUNICATOR_ADDRESS_PREFIX. | ||
186 | */ | ||
187 | char *foreign_addr; | ||
188 | |||
189 | /** | ||
190 | * Address of the other peer. | ||
191 | */ | ||
192 | struct sockaddr *address; | ||
193 | |||
194 | /** | ||
195 | * Length of the address. | ||
196 | */ | ||
197 | socklen_t address_len; | ||
198 | |||
199 | /** | ||
200 | * The QUIC connection associated with this peer | ||
201 | */ | ||
202 | struct quic_conn *conn; | ||
203 | |||
204 | /** | ||
205 | * Default message queue we are providing for the #ch. | ||
206 | */ | ||
207 | struct GNUNET_MQ_Handle *d_mq; | ||
208 | |||
209 | /** | ||
210 | * handle for default queue with the #ch. | ||
211 | */ | ||
212 | struct GNUNET_TRANSPORT_QueueHandle *d_qh; | ||
213 | |||
214 | /** | ||
215 | * Timeout for this peer address. | ||
216 | */ | ||
217 | struct GNUNET_TIME_Absolute timeout; | ||
218 | |||
219 | /** | ||
220 | * MTU we allowed transport for this peer's default queue. | ||
221 | * FIXME: MTU from quiche | ||
222 | */ | ||
223 | size_t d_mtu; | ||
224 | |||
225 | /** | ||
226 | * Which network type does this queue use? | ||
227 | */ | ||
228 | enum GNUNET_NetworkType nt; | ||
229 | |||
230 | /** | ||
231 | * receiver_destroy already called on receiver. | ||
232 | */ | ||
233 | int peer_destroy_called; | ||
234 | |||
235 | /** | ||
236 | * FIXME implementation missing | ||
237 | * Entry in sender expiration heap. | ||
238 | */ | ||
239 | // struct GNUNET_CONTAINER_HeapNode *hn; | ||
240 | }; | ||
241 | |||
242 | // /** | ||
243 | // * FIXME: Implementation missing | ||
244 | // * Expiration heap for peers (contains `struct PeerAddress`) | ||
245 | // */ | ||
246 | // static struct GNUNET_CONTAINER_Heap *peers_heap; | ||
247 | |||
248 | /** | ||
249 | * ID of timeout task | ||
250 | */ | ||
251 | static struct GNUNET_SCHEDULER_Task *timeout_task; | ||
252 | |||
253 | /** | ||
254 | * Network scanner to determine network types. | ||
255 | */ | ||
256 | static struct GNUNET_NT_InterfaceScanner *is; | ||
257 | |||
258 | /** | ||
259 | * For logging statistics. | ||
260 | */ | ||
261 | static struct GNUNET_STATISTICS_Handle *stats; | ||
262 | |||
263 | /** | ||
264 | * QUIC connection object. A connection has a unique SCID/DCID pair. Here we store our SCID | ||
265 | * (incoming packet DCID field == outgoing packet SCID field) for a given connection. This | ||
266 | * is hashed for each unique quic_conn. | ||
267 | */ | ||
268 | struct quic_conn | ||
269 | { | ||
270 | uint8_t cid[LOCAL_CONN_ID_LEN]; | ||
271 | |||
272 | quiche_conn *conn; | ||
273 | }; | ||
274 | |||
275 | /** | ||
276 | * QUIC_header is used to store information received from an incoming QUIC packet | ||
277 | */ | ||
278 | struct QUIC_header | ||
279 | { | ||
280 | uint8_t type; | ||
281 | uint32_t version; | ||
282 | |||
283 | uint8_t scid[QUICHE_MAX_CONN_ID_LEN]; | ||
284 | size_t scid_len; | ||
285 | |||
286 | uint8_t dcid[QUICHE_MAX_CONN_ID_LEN]; | ||
287 | size_t dcid_len; | ||
288 | |||
289 | uint8_t odcid[QUICHE_MAX_CONN_ID_LEN]; | ||
290 | size_t odcid_len; | ||
291 | |||
292 | uint8_t token[MAX_TOKEN_LEN]; | ||
293 | size_t token_len; | ||
294 | }; | ||
295 | |||
296 | |||
297 | /** | ||
298 | * Given a PeerAddress, receive data from streams after doing connection logic. | ||
299 | * ASSUMES: connection is established to peer | ||
300 | */ | ||
301 | static void | ||
302 | recv_from_streams (struct PeerAddress *peer) | ||
303 | { | ||
304 | char stream_buf[UINT16_MAX]; | ||
305 | size_t buf_size = UINT16_MAX; | ||
306 | char *buf_ptr = stream_buf; | ||
307 | struct GNUNET_MessageHeader *hdr; | ||
308 | |||
309 | uint64_t s = 0; | ||
310 | quiche_stream_iter *readable; | ||
311 | bool fin; | ||
312 | ssize_t recv_len; | ||
313 | |||
314 | readable = quiche_conn_readable (peer->conn->conn); | ||
315 | while (quiche_stream_iter_next (readable, &s)) | ||
316 | { | ||
317 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "stream %" PRIu64 " is readable\n", | ||
318 | s); | ||
319 | fin = false; | ||
320 | recv_len = quiche_conn_stream_recv (peer->conn->conn, s, | ||
321 | (uint8_t *) stream_buf, buf_size, | ||
322 | &fin); | ||
323 | if (recv_len < 0) | ||
324 | { | ||
325 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
326 | "error while receiving data from stream %" PRIu64 "\n", s); | ||
327 | break; | ||
328 | } | ||
329 | /** | ||
330 | * FIXME: Do not use implicit booleans. Use GNUNET_YES, GNUNET_NO, GNUNET_SYSERR | ||
331 | * and check for that. | ||
332 | * | ||
333 | * Initial packet should contain peerid if they are the initiator | ||
334 | */ | ||
335 | if (! peer->is_receiver && GNUNET_NO == peer->id_rcvd) | ||
336 | { | ||
337 | if (recv_len < sizeof(struct GNUNET_PeerIdentity)) | ||
338 | { | ||
339 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
340 | "message recv len of %zd less than length of peer identity\n", | ||
341 | recv_len); | ||
342 | return; | ||
343 | } | ||
344 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
345 | "received peer identity\n"); | ||
346 | struct GNUNET_PeerIdentity *pid = (struct | ||
347 | GNUNET_PeerIdentity *) stream_buf; | ||
348 | peer->target = *pid; | ||
349 | peer->id_rcvd = GNUNET_YES; | ||
350 | buf_ptr += sizeof(struct GNUNET_PeerIdentity); | ||
351 | recv_len -= sizeof(struct GNUNET_PeerIdentity); | ||
352 | } | ||
353 | /** | ||
354 | * Parse messages to pass to communicator | ||
355 | */ | ||
356 | while (recv_len >= sizeof(struct GNUNET_MessageHeader)) | ||
357 | { | ||
358 | hdr = (struct GNUNET_MessageHeader *) buf_ptr; | ||
359 | if (ntohs (hdr->size) > recv_len) | ||
360 | { | ||
361 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
362 | "message size stated (%d) is greater than length of rcvd data (%zd)!\n", | ||
363 | ntohs (hdr->size), recv_len); | ||
364 | return; | ||
365 | } | ||
366 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "passing %zd bytes to core\n", | ||
367 | recv_len); | ||
368 | GNUNET_TRANSPORT_communicator_receive (ch, &peer->target, hdr, | ||
369 | ADDRESS_VALIDITY_PERIOD, NULL, | ||
370 | NULL); | ||
371 | recv_len -= ntohs (hdr->size); | ||
372 | buf_ptr += ntohs (hdr->size); | ||
373 | } | ||
374 | /** | ||
375 | * Check for leftover bytes | ||
376 | */ | ||
377 | if (0 != recv_len) | ||
378 | { | ||
379 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
380 | "message recv len of %zd less than length of message header\n", | ||
381 | recv_len); | ||
382 | } | ||
383 | /** | ||
384 | * FIXME: comment useless | ||
385 | * fin | ||
386 | */ | ||
387 | if (fin) | ||
388 | { | ||
389 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
390 | "fin received, closing connection\n"); | ||
391 | if (0 > quiche_conn_close (peer->conn->conn, true, 0, NULL, 0)) | ||
392 | { | ||
393 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
394 | "quiche failed to close connection to peer\n"); | ||
395 | } | ||
396 | } | ||
397 | } | ||
398 | quiche_stream_iter_free (readable); | ||
399 | } | ||
400 | |||
401 | |||
402 | /** | ||
403 | * FIXME: review token generation, assure tokens are generated properly. doxygen | ||
404 | */ | ||
405 | static void | ||
406 | mint_token (const uint8_t *dcid, size_t dcid_len, | ||
407 | struct sockaddr_storage *addr, socklen_t addr_len, | ||
408 | uint8_t *token, size_t *token_len) | ||
409 | { | ||
410 | GNUNET_memcpy (token, "quiche", sizeof("quiche") - 1); | ||
411 | GNUNET_memcpy (token + sizeof("quiche") - 1, addr, addr_len); | ||
412 | GNUNET_memcpy (token + sizeof("quiche") - 1 + addr_len, dcid, dcid_len); | ||
413 | |||
414 | *token_len = sizeof("quiche") - 1 + addr_len + dcid_len; | ||
415 | } | ||
416 | |||
417 | |||
418 | static enum GNUNET_GenericReturnValue | ||
419 | validate_token (const uint8_t *token, size_t token_len, | ||
420 | struct sockaddr_storage *addr, socklen_t addr_len, | ||
421 | uint8_t *odcid, size_t *odcid_len) | ||
422 | { | ||
423 | if ((token_len < sizeof("quiche") - 1) || | ||
424 | memcmp (token, "quiche", sizeof("quiche") - 1)) | ||
425 | { | ||
426 | return GNUNET_NO; | ||
427 | } | ||
428 | |||
429 | token += sizeof("quiche") - 1; | ||
430 | token_len -= sizeof("quiche") - 1; | ||
431 | |||
432 | if ((token_len < addr_len) || memcmp (token, addr, addr_len)) | ||
433 | { | ||
434 | return GNUNET_NO; | ||
435 | } | ||
436 | |||
437 | token += addr_len; | ||
438 | token_len -= addr_len; | ||
439 | |||
440 | if (*odcid_len < token_len) | ||
441 | { | ||
442 | return GNUNET_NO; | ||
443 | } | ||
444 | |||
445 | memcpy (odcid, token, token_len); | ||
446 | *odcid_len = token_len; | ||
447 | |||
448 | return GNUNET_OK; | ||
449 | } | ||
450 | |||
451 | |||
452 | static struct quic_conn* | ||
453 | create_conn (uint8_t *scid, size_t scid_len, | ||
454 | uint8_t *odcid, size_t odcid_len, | ||
455 | struct sockaddr *local_addr, | ||
456 | socklen_t local_addr_len, | ||
457 | struct sockaddr_storage *peer_addr, | ||
458 | socklen_t peer_addr_len) | ||
459 | { | ||
460 | struct quic_conn *conn; | ||
461 | quiche_conn *q_conn; | ||
462 | conn = GNUNET_new (struct quic_conn); | ||
463 | if (scid_len != LOCAL_CONN_ID_LEN) | ||
464 | { | ||
465 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
466 | "error while creating connection, scid length too short: %zu\n", | ||
467 | scid_len); | ||
468 | return NULL; | ||
469 | } | ||
470 | |||
471 | GNUNET_memcpy (conn->cid, scid, LOCAL_CONN_ID_LEN); | ||
472 | q_conn = quiche_accept (conn->cid, LOCAL_CONN_ID_LEN, | ||
473 | odcid, odcid_len, | ||
474 | local_addr, | ||
475 | local_addr_len, | ||
476 | (struct sockaddr *) peer_addr, | ||
477 | peer_addr_len, | ||
478 | config); | ||
479 | if (NULL == q_conn) | ||
480 | { | ||
481 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
482 | "quiche failed to create connection after call to quiche_accept\n"); | ||
483 | return NULL; | ||
484 | } | ||
485 | conn->conn = q_conn; | ||
486 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "new quic connection created\n"); | ||
487 | return conn; | ||
488 | } | ||
489 | |||
490 | |||
491 | static void | ||
492 | flush_egress (struct quic_conn *conn) | ||
493 | { | ||
494 | static uint8_t out[MAX_DATAGRAM_SIZE]; | ||
495 | quiche_send_info send_info; | ||
496 | |||
497 | ssize_t written; | ||
498 | ssize_t sent; | ||
499 | |||
500 | while (1) | ||
501 | { | ||
502 | written = quiche_conn_send (conn->conn, out, sizeof(out), &send_info); | ||
503 | if (QUICHE_ERR_DONE == written) | ||
504 | { | ||
505 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "done writing quic packets\n"); | ||
506 | break; | ||
507 | } | ||
508 | if (0 > written) | ||
509 | { | ||
510 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
511 | "quiche failed to create packet. quiche error: %zd\n", | ||
512 | written); | ||
513 | return; | ||
514 | } | ||
515 | sent = GNUNET_NETWORK_socket_sendto (udp_sock, out, written, | ||
516 | (struct sockaddr *) &send_info.to, | ||
517 | send_info.to_len); | ||
518 | if (sent != written) | ||
519 | { | ||
520 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
521 | "quiche failed to send data to peer\n"); | ||
522 | return; | ||
523 | } | ||
524 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "sent %zd bytes\n", sent); | ||
525 | } | ||
526 | } | ||
527 | |||
528 | |||
529 | /** | ||
530 | * Increment receiver timeout due to activity. | ||
531 | * | ||
532 | * @param receiver address for which the timeout should be rescheduled | ||
533 | */ | ||
534 | static void | ||
535 | reschedule_peer_timeout (struct PeerAddress *peer) | ||
536 | { | ||
537 | peer->timeout = | ||
538 | GNUNET_TIME_relative_to_absolute (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT); | ||
539 | // GNUNET_CONTAINER_heap_update_cost (peer->hn, | ||
540 | // peer->timeout.abs_value_us); | ||
541 | } | ||
542 | |||
543 | |||
544 | /** | ||
545 | * Destroys a receiving state due to timeout or shutdown. | ||
546 | * | ||
547 | * @param receiver entity to close down | ||
548 | */ | ||
549 | static void | ||
550 | peer_destroy (struct PeerAddress *peer) | ||
551 | { | ||
552 | struct GNUNET_HashCode addr_key; | ||
553 | |||
554 | peer->peer_destroy_called = GNUNET_YES; | ||
555 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
556 | "Disconnecting peer for peer `%s'\n", | ||
557 | GNUNET_i2s (&peer->target)); | ||
558 | if (NULL != peer->d_qh) | ||
559 | { | ||
560 | GNUNET_TRANSPORT_communicator_mq_del (peer->d_qh); | ||
561 | peer->d_qh = NULL; | ||
562 | } | ||
563 | // GNUNET_assert (peer == GNUNET_CONTAINER_heap_remove_node (peer->hn)); | ||
564 | /** | ||
565 | * Remove peer from hashmap | ||
566 | */ | ||
567 | GNUNET_CRYPTO_hash (peer->address, peer->address_len, &addr_key); | ||
568 | if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_remove (addr_map, &addr_key, | ||
569 | peer)) | ||
570 | { | ||
571 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
572 | "tried to remove non-existent peer from addr map\n"); | ||
573 | return; | ||
574 | } | ||
575 | GNUNET_STATISTICS_set (stats, | ||
576 | "# peers active", | ||
577 | GNUNET_CONTAINER_multihashmap_size (addr_map), | ||
578 | GNUNET_NO); | ||
579 | quiche_conn_free (peer->conn->conn); | ||
580 | GNUNET_free (peer->address); | ||
581 | GNUNET_free (peer->foreign_addr); | ||
582 | GNUNET_free (peer->conn); | ||
583 | GNUNET_free (peer); | ||
584 | } | ||
585 | |||
586 | |||
587 | /** | ||
588 | * Iterator over all peers to clean up. | ||
589 | * | ||
590 | * @param cls NULL | ||
591 | * @param key peer->address | ||
592 | * @param value the peer to destroy | ||
593 | * @return #GNUNET_OK to continue to iterate | ||
594 | */ | ||
595 | static int | ||
596 | get_peer_delete_it (void *cls, | ||
597 | const struct GNUNET_HashCode *key, | ||
598 | void *value) | ||
599 | { | ||
600 | struct PeerAddress *peer = value; | ||
601 | (void) cls; | ||
602 | (void) key; | ||
603 | peer_destroy (peer); | ||
604 | return GNUNET_OK; | ||
605 | } | ||
606 | |||
607 | |||
608 | /** | ||
609 | * Signature of functions implementing the sending functionality of a | ||
610 | * message queue. | ||
611 | * | ||
612 | * @param mq the message queue | ||
613 | * @param msg the message to send | ||
614 | * @param impl_state our `struct PeerAddress` | ||
615 | */ | ||
616 | static void | ||
617 | mq_send_d (struct GNUNET_MQ_Handle *mq, | ||
618 | const struct GNUNET_MessageHeader *msg, | ||
619 | void *impl_state) | ||
620 | { | ||
621 | struct PeerAddress *peer = impl_state; | ||
622 | uint16_t msize = ntohs (msg->size); | ||
623 | ssize_t send_len; | ||
624 | |||
625 | if (NULL == peer->conn->conn) | ||
626 | { | ||
627 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
628 | "peer never established quic connection\n"); | ||
629 | return; | ||
630 | } | ||
631 | |||
632 | GNUNET_assert (mq == peer->d_mq); | ||
633 | if (msize > peer->d_mtu) | ||
634 | { | ||
635 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
636 | "msize: %u, mtu: %lu\n", | ||
637 | msize, | ||
638 | peer->d_mtu); | ||
639 | GNUNET_break (0); | ||
640 | if (GNUNET_YES != peer->peer_destroy_called) | ||
641 | { | ||
642 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
643 | "peer destroy called, destroying peer\n"); | ||
644 | peer_destroy (peer); | ||
645 | } | ||
646 | return; | ||
647 | } | ||
648 | reschedule_peer_timeout (peer); | ||
649 | |||
650 | send_len = quiche_conn_stream_send (peer->conn->conn, 4, (uint8_t *) msg, | ||
651 | msize, false); | ||
652 | if (send_len != msize) | ||
653 | { | ||
654 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
655 | "tried to send message and quiche returned %zd", send_len); | ||
656 | return; | ||
657 | } | ||
658 | flush_egress (peer->conn); | ||
659 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
660 | "sent a message of %zd bytes\n", send_len); | ||
661 | GNUNET_MQ_impl_send_continue (mq); | ||
662 | } | ||
663 | |||
664 | |||
665 | /** | ||
666 | * Signature of functions implementing the destruction of a message | ||
667 | * queue. Implementations must not free @a mq, but should take care | ||
668 | * of @a impl_state. | ||
669 | * | ||
670 | * @param mq the message queue to destroy | ||
671 | * @param impl_state our `struct PeerAddress` | ||
672 | */ | ||
673 | static void | ||
674 | mq_destroy_d (struct GNUNET_MQ_Handle *mq, void *impl_state) | ||
675 | { | ||
676 | struct PeerAddress *peer = impl_state; | ||
677 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
678 | "Default MQ destroyed\n"); | ||
679 | if (mq == peer->d_mq) | ||
680 | { | ||
681 | peer->d_mq = NULL; | ||
682 | if (GNUNET_YES != peer->peer_destroy_called) | ||
683 | peer_destroy (peer); | ||
684 | } | ||
685 | } | ||
686 | |||
687 | |||
688 | /** | ||
689 | * Implementation function that cancels the currently sent message. | ||
690 | * | ||
691 | * @param mq message queue | ||
692 | * @param impl_state our `struct PeerAddress` | ||
693 | */ | ||
694 | static void | ||
695 | mq_cancel (struct GNUNET_MQ_Handle *mq, void *impl_state) | ||
696 | { | ||
697 | /* Cancellation is impossible with QUIC; bail */ | ||
698 | GNUNET_assert (0); | ||
699 | } | ||
700 | |||
701 | |||
702 | /** | ||
703 | * Generic error handler, called with the appropriate | ||
704 | * error code and the same closure specified at the creation of | ||
705 | * the message queue. | ||
706 | * Not every message queue implementation supports an error handler. | ||
707 | * | ||
708 | * @param cls our `struct ReceiverAddress` | ||
709 | * @param error error code | ||
710 | */ | ||
711 | static void | ||
712 | mq_error (void *cls, enum GNUNET_MQ_Error error) | ||
713 | { | ||
714 | struct PeerAddress *peer = cls; | ||
715 | |||
716 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
717 | "MQ error in queue to %s: %d\n", | ||
718 | GNUNET_i2s (&peer->target), | ||
719 | (int) error); | ||
720 | peer_destroy (peer); | ||
721 | } | ||
722 | |||
723 | |||
724 | /** | ||
725 | * Convert UDP bind specification to a `struct sockaddr *` | ||
726 | * | ||
727 | * @param bindto bind specification to convert | ||
728 | * @param[out] sock_len set to the length of the address | ||
729 | * @return converted bindto specification | ||
730 | */ | ||
731 | static struct sockaddr * | ||
732 | udp_address_to_sockaddr (const char *bindto, socklen_t *sock_len) | ||
733 | { | ||
734 | struct sockaddr *in; | ||
735 | unsigned int port; | ||
736 | char dummy[2]; | ||
737 | char *colon; | ||
738 | char *cp; | ||
739 | |||
740 | if (1 == sscanf (bindto, "%u%1s", &port, dummy)) | ||
741 | { | ||
742 | /* interpreting value as just a PORT number */ | ||
743 | if (port > UINT16_MAX) | ||
744 | { | ||
745 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
746 | "BINDTO specification `%s' invalid: value too large for port\n", | ||
747 | bindto); | ||
748 | return NULL; | ||
749 | } | ||
750 | if ((GNUNET_NO == GNUNET_NETWORK_test_pf (PF_INET6)) || | ||
751 | (GNUNET_YES == | ||
752 | GNUNET_CONFIGURATION_get_value_yesno (cfg, | ||
753 | COMMUNICATOR_CONFIG_SECTION, | ||
754 | "DISABLE_V6"))) | ||
755 | { | ||
756 | struct sockaddr_in *i4; | ||
757 | |||
758 | i4 = GNUNET_malloc (sizeof(struct sockaddr_in)); | ||
759 | i4->sin_family = AF_INET; | ||
760 | i4->sin_port = htons ((uint16_t) port); | ||
761 | *sock_len = sizeof(struct sockaddr_in); | ||
762 | in = (struct sockaddr *) i4; | ||
763 | } | ||
764 | else | ||
765 | { | ||
766 | struct sockaddr_in6 *i6; | ||
767 | |||
768 | i6 = GNUNET_malloc (sizeof(struct sockaddr_in6)); | ||
769 | i6->sin6_family = AF_INET6; | ||
770 | i6->sin6_port = htons ((uint16_t) port); | ||
771 | *sock_len = sizeof(struct sockaddr_in6); | ||
772 | in = (struct sockaddr *) i6; | ||
773 | } | ||
774 | return in; | ||
775 | } | ||
776 | cp = GNUNET_strdup (bindto); | ||
777 | colon = strrchr (cp, ':'); | ||
778 | if (NULL != colon) | ||
779 | { | ||
780 | /* interpret value after colon as port */ | ||
781 | *colon = '\0'; | ||
782 | colon++; | ||
783 | if (1 == sscanf (colon, "%u%1s", &port, dummy)) | ||
784 | { | ||
785 | /* interpreting value as just a PORT number */ | ||
786 | if (port > UINT16_MAX) | ||
787 | { | ||
788 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
789 | "BINDTO specification `%s' invalid: value too large for port\n", | ||
790 | bindto); | ||
791 | GNUNET_free (cp); | ||
792 | return NULL; | ||
793 | } | ||
794 | } | ||
795 | else | ||
796 | { | ||
797 | GNUNET_log ( | ||
798 | GNUNET_ERROR_TYPE_ERROR, | ||
799 | "BINDTO specification `%s' invalid: last ':' not followed by number\n", | ||
800 | bindto); | ||
801 | GNUNET_free (cp); | ||
802 | return NULL; | ||
803 | } | ||
804 | } | ||
805 | else | ||
806 | { | ||
807 | /* interpret missing port as 0, aka pick any free one */ | ||
808 | port = 0; | ||
809 | } | ||
810 | { | ||
811 | /* try IPv4 */ | ||
812 | struct sockaddr_in v4; | ||
813 | |||
814 | memset (&v4, 0, sizeof(v4)); | ||
815 | if (1 == inet_pton (AF_INET, cp, &v4.sin_addr)) | ||
816 | { | ||
817 | v4.sin_family = AF_INET; | ||
818 | v4.sin_port = htons ((uint16_t) port); | ||
819 | #if HAVE_SOCKADDR_IN_SIN_LEN | ||
820 | v4.sin_len = sizeof(struct sockaddr_in); | ||
821 | #endif | ||
822 | in = GNUNET_memdup (&v4, sizeof(struct sockaddr_in)); | ||
823 | *sock_len = sizeof(struct sockaddr_in); | ||
824 | GNUNET_free (cp); | ||
825 | return in; | ||
826 | } | ||
827 | } | ||
828 | { | ||
829 | /* try IPv6 */ | ||
830 | struct sockaddr_in6 v6; | ||
831 | const char *start; | ||
832 | |||
833 | memset (&v6, 0, sizeof(v6)); | ||
834 | start = cp; | ||
835 | if (('[' == *cp) && (']' == cp[strlen (cp) - 1])) | ||
836 | { | ||
837 | start++; /* skip over '[' */ | ||
838 | cp[strlen (cp) - 1] = '\0'; /* eat ']' */ | ||
839 | } | ||
840 | if (1 == inet_pton (AF_INET6, start, &v6.sin6_addr)) | ||
841 | { | ||
842 | v6.sin6_family = AF_INET6; | ||
843 | v6.sin6_port = htons ((uint16_t) port); | ||
844 | #if HAVE_SOCKADDR_IN_SIN_LEN | ||
845 | v6.sin6_len = sizeof(sizeof(struct sockaddr_in6)); | ||
846 | #endif | ||
847 | in = GNUNET_memdup (&v6, sizeof(v6)); | ||
848 | *sock_len = sizeof(v6); | ||
849 | GNUNET_free (cp); | ||
850 | return in; | ||
851 | } | ||
852 | } | ||
853 | /* #5528 FIXME (feature!): maybe also try getnameinfo()? */ | ||
854 | GNUNET_free (cp); | ||
855 | return NULL; | ||
856 | } | ||
857 | |||
858 | |||
859 | /** | ||
860 | * Setup the MQ for the @a peer. If a queue exists, | ||
861 | * the existing one is destroyed. Then the MTU is | ||
862 | * recalculated and a fresh queue is initialized. | ||
863 | * | ||
864 | * @param peer peer to setup MQ for | ||
865 | */ | ||
866 | static void | ||
867 | setup_peer_mq (struct PeerAddress *peer) | ||
868 | { | ||
869 | size_t base_mtu; | ||
870 | |||
871 | switch (peer->address->sa_family) | ||
872 | { | ||
873 | case AF_INET: | ||
874 | base_mtu = 1480 /* Ethernet MTU, 1500 - Ethernet header - VLAN tag */ | ||
875 | - sizeof(struct GNUNET_TUN_IPv4Header) /* 20 */ | ||
876 | - sizeof(struct GNUNET_TUN_UdpHeader) /* 8 */; | ||
877 | break; | ||
878 | |||
879 | case AF_INET6: | ||
880 | base_mtu = 1280 /* Minimum MTU required by IPv6 */ | ||
881 | - sizeof(struct GNUNET_TUN_IPv6Header) /* 40 */ | ||
882 | - sizeof(struct GNUNET_TUN_UdpHeader) /* 8 */; | ||
883 | break; | ||
884 | |||
885 | default: | ||
886 | GNUNET_assert (0); | ||
887 | break; | ||
888 | } | ||
889 | /* MTU == base_mtu */ | ||
890 | peer->d_mtu = base_mtu; | ||
891 | |||
892 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
893 | "Setting up MQs and QHs\n"); | ||
894 | /* => Effective MTU for CORE will range from 1080 (IPv6 + KX) to | ||
895 | 1404 (IPv4 + Box) bytes, depending on circumstances... */ | ||
896 | |||
897 | if (NULL == peer->d_mq) | ||
898 | peer->d_mq = GNUNET_MQ_queue_for_callbacks (&mq_send_d, | ||
899 | &mq_destroy_d, | ||
900 | &mq_cancel, | ||
901 | peer, | ||
902 | NULL, | ||
903 | &mq_error, | ||
904 | peer); | ||
905 | peer->d_qh = | ||
906 | GNUNET_TRANSPORT_communicator_mq_add (ch, | ||
907 | &peer->target, | ||
908 | peer->foreign_addr, | ||
909 | 1000, | ||
910 | GNUNET_TRANSPORT_QUEUE_LENGTH_UNLIMITED, | ||
911 | 0, /* Priority */ | ||
912 | peer->nt, | ||
913 | GNUNET_TRANSPORT_CS_OUTBOUND, | ||
914 | peer->d_mq); | ||
915 | } | ||
916 | |||
917 | |||
918 | /** | ||
919 | * Taken from: UDP communicator | ||
920 | * Converts @a address to the address string format used by this | ||
921 | * communicator in HELLOs. | ||
922 | * | ||
923 | * @param address the address to convert, must be AF_INET or AF_INET6. | ||
924 | * @param address_len number of bytes in @a address | ||
925 | * @return string representation of @a address | ||
926 | */ | ||
927 | static char * | ||
928 | sockaddr_to_udpaddr_string (const struct sockaddr *address, | ||
929 | socklen_t address_len) | ||
930 | { | ||
931 | char *ret; | ||
932 | |||
933 | switch (address->sa_family) | ||
934 | { | ||
935 | case AF_INET: | ||
936 | GNUNET_asprintf (&ret, | ||
937 | "%s-%s", | ||
938 | COMMUNICATOR_ADDRESS_PREFIX, | ||
939 | GNUNET_a2s (address, address_len)); | ||
940 | break; | ||
941 | |||
942 | case AF_INET6: | ||
943 | GNUNET_asprintf (&ret, | ||
944 | "%s-%s", | ||
945 | COMMUNICATOR_ADDRESS_PREFIX, | ||
946 | GNUNET_a2s (address, address_len)); | ||
947 | break; | ||
948 | |||
949 | default: | ||
950 | GNUNET_assert (0); | ||
951 | } | ||
952 | return ret; | ||
953 | } | ||
954 | |||
955 | |||
956 | /** | ||
957 | * Function called when the transport service has received a | ||
958 | * backchannel message for this communicator (!) via a different return | ||
959 | * path. Should be an acknowledgement. | ||
960 | * | ||
961 | * @param cls closure, NULL | ||
962 | * @param sender which peer sent the notification | ||
963 | * @param msg payload | ||
964 | */ | ||
965 | static void | ||
966 | notify_cb (void *cls, | ||
967 | const struct GNUNET_PeerIdentity *sender, | ||
968 | const struct GNUNET_MessageHeader *msg) | ||
969 | { | ||
970 | // const struct UDPAck *ack; | ||
971 | |||
972 | // (void) cls; | ||
973 | // GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
974 | // "Storing UDPAck received from backchannel from %s\n", | ||
975 | // GNUNET_i2s_full (sender)); | ||
976 | // if ((ntohs (msg->type) != GNUNET_MESSAGE_TYPE_COMMUNICATOR_UDP_ACK) || | ||
977 | // (ntohs (msg->size) != sizeof(struct UDPAck))) | ||
978 | // { | ||
979 | // GNUNET_break_op (0); | ||
980 | // return; | ||
981 | // } | ||
982 | // ack = (const struct UDPAck *) msg; | ||
983 | // GNUNET_CONTAINER_multipeermap_get_multiple (receivers, | ||
984 | // sender, | ||
985 | // &handle_ack, | ||
986 | // (void *) ack); | ||
987 | } | ||
988 | |||
989 | |||
990 | /** | ||
991 | * Task run to check #receiver_heap and #sender_heap for timeouts. | ||
992 | * | ||
993 | * @param cls unused, NULL | ||
994 | */ | ||
995 | static void | ||
996 | check_timeouts (void *cls) | ||
997 | { | ||
998 | // struct GNUNET_TIME_Relative st; | ||
999 | // struct GNUNET_TIME_Relative rt; | ||
1000 | // struct GNUNET_TIME_Relative delay; | ||
1001 | // struct ReceiverAddress *receiver; | ||
1002 | // struct SenderAddress *sender; | ||
1003 | |||
1004 | // (void) cls; | ||
1005 | // timeout_task = NULL; | ||
1006 | // rt = GNUNET_TIME_UNIT_FOREVER_REL; | ||
1007 | // while (NULL != (receiver = GNUNET_CONTAINER_heap_peek (receivers_heap))) | ||
1008 | // { | ||
1009 | // /* if (GNUNET_YES != receiver->receiver_destroy_called) */ | ||
1010 | // /* { */ | ||
1011 | // rt = GNUNET_TIME_absolute_get_remaining (receiver->timeout); | ||
1012 | // if (0 != rt.rel_value_us) | ||
1013 | // break; | ||
1014 | // GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1015 | // "Receiver timed out\n"); | ||
1016 | // receiver_destroy (receiver); | ||
1017 | // // } | ||
1018 | // } | ||
1019 | // st = GNUNET_TIME_UNIT_FOREVER_REL; | ||
1020 | // while (NULL != (sender = GNUNET_CONTAINER_heap_peek (senders_heap))) | ||
1021 | // { | ||
1022 | // if (GNUNET_YES != sender->sender_destroy_called) | ||
1023 | // { | ||
1024 | // st = GNUNET_TIME_absolute_get_remaining (sender->timeout); | ||
1025 | // if (0 != st.rel_value_us) | ||
1026 | // break; | ||
1027 | // sender_destroy (sender); | ||
1028 | // } | ||
1029 | // } | ||
1030 | // delay = GNUNET_TIME_relative_min (rt, st); | ||
1031 | // if (delay.rel_value_us < GNUNET_TIME_UNIT_FOREVER_REL.rel_value_us) | ||
1032 | // timeout_task = GNUNET_SCHEDULER_add_delayed (delay, &check_timeouts, NULL); | ||
1033 | } | ||
1034 | |||
1035 | |||
1036 | /** | ||
1037 | * Function called by the transport service to initialize a | ||
1038 | * message queue given address information about another peer. | ||
1039 | * If and when the communication channel is established, the | ||
1040 | * communicator must call #GNUNET_TRANSPORT_communicator_mq_add() | ||
1041 | * to notify the service that the channel is now up. It is | ||
1042 | * the responsibility of the communicator to manage sane | ||
1043 | * retries and timeouts for any @a peer/@a address combination | ||
1044 | * provided by the transport service. Timeouts and retries | ||
1045 | * do not need to be signalled to the transport service. | ||
1046 | * | ||
1047 | * @param cls closure | ||
1048 | * @param peer identity of the other peer | ||
1049 | * @param address where to send the message, human-readable | ||
1050 | * communicator-specific format, 0-terminated, UTF-8 | ||
1051 | * @return #GNUNET_OK on success, #GNUNET_SYSERR if the provided address is | ||
1052 | * invalid | ||
1053 | */ | ||
1054 | static int | ||
1055 | mq_init (void *cls, const struct GNUNET_PeerIdentity *peer_id, const | ||
1056 | char *address) | ||
1057 | { | ||
1058 | struct PeerAddress *peer; | ||
1059 | const char *path; | ||
1060 | struct sockaddr *in; | ||
1061 | socklen_t in_len; | ||
1062 | struct GNUNET_HashCode addr_key; | ||
1063 | uint8_t scid[LOCAL_CONN_ID_LEN]; | ||
1064 | |||
1065 | struct quic_conn *q_conn; | ||
1066 | char *bindto; | ||
1067 | socklen_t local_in_len; | ||
1068 | struct sockaddr *local_addr; | ||
1069 | |||
1070 | if (GNUNET_OK != | ||
1071 | GNUNET_CONFIGURATION_get_value_string (cfg, | ||
1072 | COMMUNICATOR_CONFIG_SECTION, | ||
1073 | "BINDTO", | ||
1074 | &bindto)) | ||
1075 | { | ||
1076 | GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR, | ||
1077 | COMMUNICATOR_CONFIG_SECTION, | ||
1078 | "BINDTO"); | ||
1079 | return GNUNET_SYSERR; | ||
1080 | } | ||
1081 | local_addr = udp_address_to_sockaddr (bindto, &local_in_len); | ||
1082 | |||
1083 | if (0 != strncmp (address, | ||
1084 | COMMUNICATOR_ADDRESS_PREFIX "-", | ||
1085 | strlen (COMMUNICATOR_ADDRESS_PREFIX "-"))) | ||
1086 | { | ||
1087 | GNUNET_break_op (0); | ||
1088 | return GNUNET_SYSERR; | ||
1089 | } | ||
1090 | path = &address[strlen (COMMUNICATOR_ADDRESS_PREFIX "-")]; | ||
1091 | in = udp_address_to_sockaddr (path, &in_len); | ||
1092 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "mq_init in_len length before: %d\n", | ||
1093 | in_len); | ||
1094 | /** | ||
1095 | * If we already have a queue with this peer, ignore | ||
1096 | */ | ||
1097 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "address string in mq_init: %s\n", | ||
1098 | address); | ||
1099 | GNUNET_CRYPTO_hash (address, strlen (address), &addr_key); | ||
1100 | peer = GNUNET_CONTAINER_multihashmap_get (addr_map, &addr_key); | ||
1101 | if (NULL != peer) | ||
1102 | { | ||
1103 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1104 | "ignoring transport service mq request, we already have an mq with this peer (address)\n"); | ||
1105 | return GNUNET_SYSERR; | ||
1106 | } | ||
1107 | peer = GNUNET_new (struct PeerAddress); | ||
1108 | peer->address = in; | ||
1109 | peer->address_len = in_len; | ||
1110 | peer->target = *peer_id; | ||
1111 | peer->id_rcvd = GNUNET_YES; | ||
1112 | peer->is_receiver = GNUNET_YES; | ||
1113 | peer->nt = GNUNET_NT_scanner_get_type (is, in, in_len); | ||
1114 | peer->timeout = | ||
1115 | GNUNET_TIME_relative_to_absolute (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT); | ||
1116 | GNUNET_STATISTICS_set (stats, | ||
1117 | "# peers active", | ||
1118 | GNUNET_CONTAINER_multihashmap_size (addr_map), | ||
1119 | GNUNET_NO); | ||
1120 | peer->foreign_addr = | ||
1121 | sockaddr_to_udpaddr_string (peer->address, peer->address_len); | ||
1122 | /** | ||
1123 | * Insert peer into hashmap | ||
1124 | */ | ||
1125 | GNUNET_CONTAINER_multihashmap_put (addr_map, &addr_key, | ||
1126 | peer, | ||
1127 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY); | ||
1128 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1129 | "mq_init added new peer to the addr map\n"); | ||
1130 | /** | ||
1131 | * Before setting up peer mq, initiate a quic connection to the target (perform handshake w/ quiche) | ||
1132 | */ | ||
1133 | GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_STRONG, scid, | ||
1134 | LOCAL_CONN_ID_LEN); | ||
1135 | q_conn = GNUNET_new (struct quic_conn); | ||
1136 | GNUNET_memcpy (q_conn->cid, scid, LOCAL_CONN_ID_LEN); | ||
1137 | peer->conn = q_conn; | ||
1138 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1139 | "attempting to perform QUIC handshake with peer\n"); | ||
1140 | q_conn->conn = quiche_connect (peer->foreign_addr, scid, LOCAL_CONN_ID_LEN, | ||
1141 | local_addr, | ||
1142 | local_in_len, peer->address, peer->address_len, | ||
1143 | config); | ||
1144 | flush_egress (peer->conn); | ||
1145 | GNUNET_free (local_addr); | ||
1146 | return GNUNET_OK; | ||
1147 | /** | ||
1148 | * TODO: handle this | ||
1149 | */ | ||
1150 | // if (NULL == timeout_task) | ||
1151 | // timeout_task = GNUNET_SCHEDULER_add_now (&check_timeouts, NULL); | ||
1152 | } | ||
1153 | |||
1154 | |||
1155 | static void | ||
1156 | try_connection_reversal (void *cls, | ||
1157 | const struct sockaddr *addr, | ||
1158 | socklen_t addrlen) | ||
1159 | { | ||
1160 | /* FIXME: support reversal: #5529 */ | ||
1161 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
1162 | "No connection reversal implemented!"); | ||
1163 | } | ||
1164 | |||
1165 | |||
1166 | /** | ||
1167 | * Signature of the callback passed to #GNUNET_NAT_register() for | ||
1168 | * a function to call whenever our set of 'valid' addresses changes. | ||
1169 | * | ||
1170 | * @param cls closure | ||
1171 | * @param app_ctx[in,out] location where the app can store stuff | ||
1172 | * on add and retrieve it on remove | ||
1173 | * @param add_remove #GNUNET_YES to add a new public IP address, | ||
1174 | * #GNUNET_NO to remove a previous (now invalid) one | ||
1175 | * @param ac address class the address belongs to | ||
1176 | * @param addr either the previous or the new public IP address | ||
1177 | * @param addrlen actual length of the @a addr | ||
1178 | */ | ||
1179 | static void | ||
1180 | nat_address_cb (void *cls, | ||
1181 | void **app_ctx, | ||
1182 | int add_remove, | ||
1183 | enum GNUNET_NAT_AddressClass ac, | ||
1184 | const struct sockaddr *addr, | ||
1185 | socklen_t addrlen) | ||
1186 | { | ||
1187 | char *my_addr; | ||
1188 | struct GNUNET_TRANSPORT_AddressIdentifier *ai; | ||
1189 | |||
1190 | if (GNUNET_YES == add_remove) | ||
1191 | { | ||
1192 | enum GNUNET_NetworkType nt; | ||
1193 | |||
1194 | GNUNET_asprintf (&my_addr, | ||
1195 | "%s-%s", | ||
1196 | COMMUNICATOR_ADDRESS_PREFIX, | ||
1197 | GNUNET_a2s (addr, addrlen)); | ||
1198 | nt = GNUNET_NT_scanner_get_type (is, addr, addrlen); | ||
1199 | ai = | ||
1200 | GNUNET_TRANSPORT_communicator_address_add (ch, | ||
1201 | my_addr, | ||
1202 | nt, | ||
1203 | GNUNET_TIME_UNIT_FOREVER_REL); | ||
1204 | GNUNET_free (my_addr); | ||
1205 | *app_ctx = ai; | ||
1206 | } | ||
1207 | else | ||
1208 | { | ||
1209 | ai = *app_ctx; | ||
1210 | GNUNET_TRANSPORT_communicator_address_remove (ai); | ||
1211 | *app_ctx = NULL; | ||
1212 | } | ||
1213 | } | ||
1214 | |||
1215 | |||
1216 | /** | ||
1217 | * Shutdown the QUIC communicator. | ||
1218 | * | ||
1219 | * @param cls NULL (always) | ||
1220 | */ | ||
1221 | static void | ||
1222 | do_shutdown (void *cls) | ||
1223 | { | ||
1224 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1225 | "do_shutdown\n"); | ||
1226 | GNUNET_CONTAINER_multihashmap_iterate (addr_map, &get_peer_delete_it, NULL); | ||
1227 | GNUNET_CONTAINER_multihashmap_destroy (addr_map); | ||
1228 | quiche_config_free (config); | ||
1229 | |||
1230 | if (NULL != timeout_task) | ||
1231 | { | ||
1232 | GNUNET_SCHEDULER_cancel (timeout_task); | ||
1233 | timeout_task = NULL; | ||
1234 | } | ||
1235 | if (NULL != read_task) | ||
1236 | { | ||
1237 | GNUNET_SCHEDULER_cancel (read_task); | ||
1238 | read_task = NULL; | ||
1239 | } | ||
1240 | if (NULL != udp_sock) | ||
1241 | { | ||
1242 | GNUNET_break (GNUNET_OK == | ||
1243 | GNUNET_NETWORK_socket_close (udp_sock)); | ||
1244 | udp_sock = NULL; | ||
1245 | } | ||
1246 | if (NULL != ch) | ||
1247 | { | ||
1248 | GNUNET_TRANSPORT_communicator_disconnect (ch); | ||
1249 | ch = NULL; | ||
1250 | } | ||
1251 | if (NULL != ah) | ||
1252 | { | ||
1253 | GNUNET_TRANSPORT_application_done (ah); | ||
1254 | ah = NULL; | ||
1255 | } | ||
1256 | if (NULL != my_private_key) | ||
1257 | { | ||
1258 | GNUNET_free (my_private_key); | ||
1259 | my_private_key = NULL; | ||
1260 | } | ||
1261 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1262 | "do_shutdown finished\n"); | ||
1263 | } | ||
1264 | |||
1265 | |||
1266 | static void | ||
1267 | sock_read (void *cls) | ||
1268 | { | ||
1269 | struct sockaddr_storage sa; | ||
1270 | struct sockaddr_in *addr_verify; | ||
1271 | socklen_t salen = sizeof(sa); | ||
1272 | uint8_t buf[UINT16_MAX]; | ||
1273 | uint8_t out[MAX_DATAGRAM_SIZE]; | ||
1274 | ssize_t rcvd; | ||
1275 | |||
1276 | ssize_t process_pkt; | ||
1277 | struct QUIC_header quic_header; | ||
1278 | uint8_t new_cid[LOCAL_CONN_ID_LEN]; | ||
1279 | |||
1280 | struct PeerAddress *peer; | ||
1281 | struct GNUNET_HashCode addr_key; | ||
1282 | |||
1283 | (void) cls; | ||
1284 | quic_header.scid_len = sizeof(quic_header.scid); | ||
1285 | quic_header.dcid_len = sizeof(quic_header.dcid); | ||
1286 | quic_header.odcid_len = sizeof(quic_header.odcid); | ||
1287 | quic_header.token_len = sizeof(quic_header.token); | ||
1288 | /** | ||
1289 | * Get local_addr, in_len for quiche | ||
1290 | */ | ||
1291 | char *bindto; | ||
1292 | socklen_t in_len; | ||
1293 | if (GNUNET_OK != | ||
1294 | GNUNET_CONFIGURATION_get_value_string (cfg, | ||
1295 | COMMUNICATOR_CONFIG_SECTION, | ||
1296 | "BINDTO", | ||
1297 | &bindto)) | ||
1298 | { | ||
1299 | GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR, | ||
1300 | COMMUNICATOR_CONFIG_SECTION, | ||
1301 | "BINDTO"); | ||
1302 | return; | ||
1303 | } | ||
1304 | struct sockaddr *local_addr = udp_address_to_sockaddr (bindto, &in_len); | ||
1305 | |||
1306 | read_task = GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
1307 | udp_sock, | ||
1308 | &sock_read, | ||
1309 | NULL); | ||
1310 | while (1) | ||
1311 | { | ||
1312 | rcvd = GNUNET_NETWORK_socket_recvfrom (udp_sock, | ||
1313 | buf, | ||
1314 | sizeof(buf), | ||
1315 | (struct sockaddr *) &sa, | ||
1316 | &salen); | ||
1317 | if (-1 == rcvd) | ||
1318 | { | ||
1319 | if (EAGAIN == errno) | ||
1320 | break; // We are done reading data | ||
1321 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_DEBUG, "recv"); | ||
1322 | return; | ||
1323 | } | ||
1324 | |||
1325 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1326 | "Read %lu bytes\n", rcvd); | ||
1327 | |||
1328 | if (-1 == rcvd) | ||
1329 | { | ||
1330 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_DEBUG, "recv"); | ||
1331 | return; | ||
1332 | } | ||
1333 | /** | ||
1334 | * FIXME: hashing address string vs ip/port. It is not ideal that | ||
1335 | * we hash the string, instead of the binary representation, but | ||
1336 | * for now it is certainly less code. | ||
1337 | * Note that simply hashing the sockaddr does NOT work because the | ||
1338 | * the struct is not portable. | ||
1339 | */ | ||
1340 | const char *addr_string = sockaddr_to_udpaddr_string ((const struct | ||
1341 | sockaddr *) &sa, | ||
1342 | salen); | ||
1343 | GNUNET_CRYPTO_hash (addr_string, strlen (addr_string), | ||
1344 | &addr_key); | ||
1345 | GNUNET_free (addr_string); | ||
1346 | peer = GNUNET_CONTAINER_multihashmap_get (addr_map, &addr_key); | ||
1347 | |||
1348 | if (NULL == peer) | ||
1349 | { | ||
1350 | /** | ||
1351 | * Create new PeerAddress (receiver) with id_rcvd = false | ||
1352 | */ | ||
1353 | peer = GNUNET_new (struct PeerAddress); | ||
1354 | peer->address = GNUNET_memdup (&sa, salen); | ||
1355 | peer->address_len = salen; | ||
1356 | peer->id_rcvd = GNUNET_NO; | ||
1357 | peer->id_sent = GNUNET_NO; | ||
1358 | peer->is_receiver = GNUNET_NO; | ||
1359 | peer->conn = NULL; | ||
1360 | peer->foreign_addr = sockaddr_to_udpaddr_string (peer->address, | ||
1361 | peer->address_len); | ||
1362 | /** | ||
1363 | * TODO: after connection established | ||
1364 | */ | ||
1365 | // setup_peer_mq (peer); | ||
1366 | if (GNUNET_SYSERR == GNUNET_CONTAINER_multihashmap_put (addr_map, | ||
1367 | &addr_key, | ||
1368 | peer, | ||
1369 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)) | ||
1370 | { | ||
1371 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1372 | "tried to add duplicate address into address map\n"); | ||
1373 | return; | ||
1374 | } | ||
1375 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1376 | "sock_read added new peer to address map\n"); | ||
1377 | } | ||
1378 | |||
1379 | /** | ||
1380 | * Parse QUIC info | ||
1381 | */ | ||
1382 | int rc = quiche_header_info (buf, rcvd, LOCAL_CONN_ID_LEN, | ||
1383 | &quic_header.version, | ||
1384 | &quic_header.type, quic_header.scid, | ||
1385 | &quic_header.scid_len, quic_header.dcid, | ||
1386 | &quic_header.dcid_len, | ||
1387 | quic_header.token, &quic_header.token_len); | ||
1388 | if (0 > rc) | ||
1389 | { | ||
1390 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1391 | "failed to parse quic header: %d\n", | ||
1392 | rc); | ||
1393 | return; | ||
1394 | } | ||
1395 | |||
1396 | /** | ||
1397 | * New QUIC connection with peer | ||
1398 | */ | ||
1399 | if (NULL == peer->conn) | ||
1400 | { | ||
1401 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1402 | "attempting to create new connection\n"); | ||
1403 | if (0 == quiche_version_is_supported (quic_header.version)) | ||
1404 | { | ||
1405 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1406 | "quic version negotiation initiated\n"); | ||
1407 | /** | ||
1408 | * FIXME variables are redeclared often. Refactor either | ||
1409 | * to declare variables once in the beginning or refactor into | ||
1410 | * method. | ||
1411 | * | ||
1412 | * Write a version negotiation packet to "out" | ||
1413 | */ | ||
1414 | ssize_t written = quiche_negotiate_version (quic_header.scid, | ||
1415 | quic_header.scid_len, | ||
1416 | quic_header.dcid, | ||
1417 | quic_header.dcid_len, | ||
1418 | out, sizeof(out)); | ||
1419 | if (0 > written) | ||
1420 | { | ||
1421 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1422 | "quiche failed to generate version negotiation packet\n"); | ||
1423 | return; | ||
1424 | } | ||
1425 | ssize_t sent = GNUNET_NETWORK_socket_sendto (udp_sock, | ||
1426 | out, | ||
1427 | written, | ||
1428 | (struct sockaddr*) &sa, | ||
1429 | salen); | ||
1430 | if (sent != written) | ||
1431 | { | ||
1432 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1433 | "failed to send version negotiation packet to peer\n"); | ||
1434 | return; | ||
1435 | } | ||
1436 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1437 | "sent %zd bytes to peer during version negotiation\n", | ||
1438 | sent); | ||
1439 | return; | ||
1440 | } | ||
1441 | |||
1442 | if (0 == quic_header.token_len) | ||
1443 | { | ||
1444 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "quic stateless retry\n"); | ||
1445 | mint_token (quic_header.dcid, quic_header.dcid_len, &sa, salen, | ||
1446 | quic_header.token, &quic_header.token_len); | ||
1447 | |||
1448 | uint8_t new_cid[LOCAL_CONN_ID_LEN]; | ||
1449 | GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_STRONG, new_cid, | ||
1450 | LOCAL_CONN_ID_LEN); | ||
1451 | |||
1452 | ssize_t written = quiche_retry (quic_header.scid, quic_header.scid_len, | ||
1453 | quic_header.dcid, quic_header.dcid_len, | ||
1454 | new_cid, LOCAL_CONN_ID_LEN, | ||
1455 | quic_header.token, | ||
1456 | quic_header.token_len, | ||
1457 | quic_header.version, out, sizeof(out)); | ||
1458 | if (0 > written) | ||
1459 | { | ||
1460 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1461 | "quiche failed to write retry packet\n"); | ||
1462 | return; | ||
1463 | } | ||
1464 | ssize_t sent = GNUNET_NETWORK_socket_sendto (udp_sock, | ||
1465 | out, | ||
1466 | written, | ||
1467 | (struct sockaddr*) &sa, | ||
1468 | salen); | ||
1469 | if (written != sent) | ||
1470 | { | ||
1471 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "failed to send retry packet\n"); | ||
1472 | return; | ||
1473 | } | ||
1474 | |||
1475 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "sent %zd bytes\n", sent); | ||
1476 | continue; | ||
1477 | } | ||
1478 | |||
1479 | if (GNUNET_OK != validate_token (quic_header.token, quic_header.token_len, | ||
1480 | &sa, salen, | ||
1481 | quic_header.odcid, | ||
1482 | &quic_header.odcid_len)) | ||
1483 | { | ||
1484 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1485 | "invalid address validation token created\n"); | ||
1486 | return; | ||
1487 | } | ||
1488 | peer->conn = create_conn (quic_header.dcid, quic_header.dcid_len, | ||
1489 | quic_header.odcid, quic_header.odcid_len, | ||
1490 | local_addr, in_len, | ||
1491 | &sa, salen); | ||
1492 | if (NULL == peer->conn) | ||
1493 | { | ||
1494 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1495 | "failed to create quic connection with peer\n"); | ||
1496 | return; | ||
1497 | } | ||
1498 | } // null connection | ||
1499 | |||
1500 | quiche_recv_info recv_info = { | ||
1501 | (struct sockaddr *) &sa, | ||
1502 | salen, | ||
1503 | |||
1504 | local_addr, | ||
1505 | in_len, | ||
1506 | }; | ||
1507 | /** | ||
1508 | * Send our PeerIdentity if the connection is established now | ||
1509 | */ | ||
1510 | if (quiche_conn_is_established (peer->conn->conn) && ! peer->id_sent && | ||
1511 | peer->is_receiver) | ||
1512 | { | ||
1513 | ssize_t send_len; | ||
1514 | |||
1515 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1516 | "handshake established with peer, sending our peer id\n"); | ||
1517 | send_len = quiche_conn_stream_send (peer->conn->conn, STREAMID_BI, | ||
1518 | (const uint8_t *) &my_identity, | ||
1519 | sizeof(my_identity), | ||
1520 | false); | ||
1521 | if (0 > send_len) | ||
1522 | { | ||
1523 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1524 | "failed to write peer identity packet. quiche error: %zd\n", | ||
1525 | send_len); | ||
1526 | return; | ||
1527 | } | ||
1528 | flush_egress (peer->conn); | ||
1529 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "peer identity sent to peer\n"); | ||
1530 | peer->id_sent = GNUNET_YES; | ||
1531 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "setting up peer mq\n"); | ||
1532 | setup_peer_mq (peer); | ||
1533 | /** | ||
1534 | * After this, we should be all good to send/recv data | ||
1535 | */ | ||
1536 | } | ||
1537 | process_pkt = quiche_conn_recv (peer->conn->conn, buf, rcvd, &recv_info); | ||
1538 | if (0 > process_pkt) | ||
1539 | { | ||
1540 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1541 | "quiche failed to process received packet: %zd\n", | ||
1542 | process_pkt); | ||
1543 | return; | ||
1544 | } | ||
1545 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1546 | "quiche processed %zd bytes\n", process_pkt); | ||
1547 | // Check for data on all available streams if the connection is established | ||
1548 | if (GNUNET_YES == quiche_conn_is_established (peer->conn->conn)) | ||
1549 | { | ||
1550 | recv_from_streams (peer); | ||
1551 | } | ||
1552 | /** | ||
1553 | * TODO: Should we use a list instead of hashmap? | ||
1554 | * Overhead for hashing function, O(1) retrieval vs O(n) iteration with n=30? | ||
1555 | * | ||
1556 | * TODO: Is iteration necessary as in the quiche server example? | ||
1557 | */ | ||
1558 | quiche_stats stats; | ||
1559 | quiche_path_stats path_stats; | ||
1560 | |||
1561 | flush_egress (peer->conn); | ||
1562 | |||
1563 | if (quiche_conn_is_closed (peer->conn->conn)) | ||
1564 | { | ||
1565 | quiche_conn_stats (peer->conn->conn, &stats); | ||
1566 | quiche_conn_path_stats (peer->conn->conn, 0, &path_stats); | ||
1567 | |||
1568 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1569 | "connection closed. quiche stats: sent=%zu, recv=%zu\n", | ||
1570 | stats.sent, stats.recv); | ||
1571 | peer_destroy (peer); | ||
1572 | } | ||
1573 | } | ||
1574 | GNUNET_free (local_addr); | ||
1575 | } | ||
1576 | |||
1577 | |||
1578 | /** | ||
1579 | * Setup communicator and launch network interactions. | ||
1580 | * | ||
1581 | * @param cls NULL (always) | ||
1582 | * @param args remaining command-line arguments | ||
1583 | * @param cfgfile name of the configuration file used (for saving, can be NULL!) | ||
1584 | * @param c configuration | ||
1585 | */ | ||
1586 | static void | ||
1587 | run (void *cls, | ||
1588 | char *const *args, | ||
1589 | const char *cfgfile, | ||
1590 | const struct GNUNET_CONFIGURATION_Handle *c) | ||
1591 | { | ||
1592 | char *bindto; | ||
1593 | struct sockaddr *in; | ||
1594 | socklen_t in_len; | ||
1595 | struct sockaddr_storage in_sto; | ||
1596 | socklen_t sto_len; | ||
1597 | |||
1598 | (void) cls; | ||
1599 | cfg = c; | ||
1600 | |||
1601 | if (GNUNET_OK != | ||
1602 | GNUNET_CONFIGURATION_get_value_string (cfg, | ||
1603 | COMMUNICATOR_CONFIG_SECTION, | ||
1604 | "BINDTO", | ||
1605 | &bindto)) | ||
1606 | { | ||
1607 | GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR, | ||
1608 | COMMUNICATOR_CONFIG_SECTION, | ||
1609 | "BINDTO"); | ||
1610 | return; | ||
1611 | } | ||
1612 | |||
1613 | in = udp_address_to_sockaddr (bindto, &in_len); | ||
1614 | |||
1615 | if (NULL == in) | ||
1616 | { | ||
1617 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1618 | "Failed to setup UDP socket address with path `%s'\n", | ||
1619 | bindto); | ||
1620 | GNUNET_free (bindto); | ||
1621 | return; | ||
1622 | } | ||
1623 | udp_sock = | ||
1624 | GNUNET_NETWORK_socket_create (in->sa_family, | ||
1625 | SOCK_DGRAM, | ||
1626 | IPPROTO_UDP); | ||
1627 | if (NULL == udp_sock) | ||
1628 | { | ||
1629 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "socket"); | ||
1630 | GNUNET_free (in); | ||
1631 | GNUNET_free (bindto); | ||
1632 | return; | ||
1633 | } | ||
1634 | if (AF_INET6 == in->sa_family) | ||
1635 | have_v6_socket = GNUNET_YES; | ||
1636 | if (GNUNET_OK != | ||
1637 | GNUNET_NETWORK_socket_bind (udp_sock, | ||
1638 | in, | ||
1639 | in_len)) | ||
1640 | { | ||
1641 | GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, | ||
1642 | "bind", | ||
1643 | bindto); | ||
1644 | GNUNET_NETWORK_socket_close (udp_sock); | ||
1645 | udp_sock = NULL; | ||
1646 | GNUNET_free (in); | ||
1647 | GNUNET_free (bindto); | ||
1648 | return; | ||
1649 | } | ||
1650 | sto_len = sizeof(in_sto); | ||
1651 | if (0 != getsockname (GNUNET_NETWORK_get_fd (udp_sock), | ||
1652 | (struct sockaddr *) &in_sto, | ||
1653 | &sto_len)) | ||
1654 | { | ||
1655 | memcpy (&in_sto, in, in_len); | ||
1656 | sto_len = in_len; | ||
1657 | } | ||
1658 | GNUNET_free (in); | ||
1659 | GNUNET_free (bindto); | ||
1660 | in = (struct sockaddr *) &in_sto; | ||
1661 | in_len = sto_len; | ||
1662 | GNUNET_log_from_nocheck (GNUNET_ERROR_TYPE_DEBUG, | ||
1663 | "transport", | ||
1664 | "Bound to `%s'\n", | ||
1665 | GNUNET_a2s ((const struct sockaddr *) &in_sto, | ||
1666 | sto_len)); | ||
1667 | switch (in->sa_family) | ||
1668 | { | ||
1669 | case AF_INET: | ||
1670 | my_port = ntohs (((struct sockaddr_in *) in)->sin_port); | ||
1671 | break; | ||
1672 | |||
1673 | case AF_INET6: | ||
1674 | my_port = ntohs (((struct sockaddr_in6 *) in)->sin6_port); | ||
1675 | break; | ||
1676 | |||
1677 | default: | ||
1678 | GNUNET_break (0); | ||
1679 | my_port = 0; | ||
1680 | } | ||
1681 | GNUNET_SCHEDULER_add_shutdown (&do_shutdown, NULL); | ||
1682 | /** | ||
1683 | * Setup QUICHE configuration | ||
1684 | */ | ||
1685 | config = quiche_config_new (QUICHE_PROTOCOL_VERSION); | ||
1686 | quiche_config_verify_peer (config, false); | ||
1687 | /** | ||
1688 | * TODO: configure TLS cert | ||
1689 | */ | ||
1690 | quiche_config_load_cert_chain_from_pem_file (config, "./cert.crt"); | ||
1691 | quiche_config_load_priv_key_from_pem_file (config, "./cert.key"); | ||
1692 | quiche_config_set_application_protos (config, | ||
1693 | (uint8_t *) | ||
1694 | "\x0ahq-interop\x05hq-29\x05hq-28\x05hq-27\x08http/0.9", | ||
1695 | 38); | ||
1696 | quiche_config_set_max_idle_timeout (config, 5000); | ||
1697 | quiche_config_set_max_recv_udp_payload_size (config, 1200); | ||
1698 | quiche_config_set_max_send_udp_payload_size (config, 1200); | ||
1699 | quiche_config_set_initial_max_data (config, 10000000); | ||
1700 | quiche_config_set_initial_max_stream_data_bidi_local (config, 1000000); | ||
1701 | quiche_config_set_initial_max_stream_data_bidi_remote (config, 1000000); | ||
1702 | quiche_config_set_initial_max_stream_data_uni (config, 1000000); | ||
1703 | quiche_config_set_initial_max_streams_bidi (config, 100); | ||
1704 | quiche_config_set_initial_max_streams_uni (config, 100); | ||
1705 | quiche_config_set_cc_algorithm (config, QUICHE_CC_RENO); | ||
1706 | quiche_config_set_disable_active_migration (config, true); | ||
1707 | addr_map = GNUNET_CONTAINER_multihashmap_create (2, GNUNET_NO); | ||
1708 | /** | ||
1709 | * Get our public key for initial packet | ||
1710 | */ | ||
1711 | my_private_key = GNUNET_CRYPTO_eddsa_key_create_from_configuration (cfg); | ||
1712 | if (NULL == my_private_key) | ||
1713 | { | ||
1714 | GNUNET_log ( | ||
1715 | GNUNET_ERROR_TYPE_ERROR, | ||
1716 | _ ( | ||
1717 | "Transport service is lacking key configuration settings. Exiting.\n")); | ||
1718 | GNUNET_SCHEDULER_shutdown (); | ||
1719 | return; | ||
1720 | } | ||
1721 | GNUNET_CRYPTO_eddsa_key_get_public (my_private_key, &my_identity.public_key); | ||
1722 | /* start reading */ | ||
1723 | read_task = GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
1724 | udp_sock, | ||
1725 | &sock_read, | ||
1726 | NULL); | ||
1727 | ch = GNUNET_TRANSPORT_communicator_connect (cfg, | ||
1728 | COMMUNICATOR_CONFIG_SECTION, | ||
1729 | COMMUNICATOR_ADDRESS_PREFIX, | ||
1730 | GNUNET_TRANSPORT_CC_RELIABLE, | ||
1731 | &mq_init, | ||
1732 | NULL, | ||
1733 | ¬ify_cb, | ||
1734 | NULL); | ||
1735 | is = GNUNET_NT_scanner_init (); | ||
1736 | nat = GNUNET_NAT_register (cfg, | ||
1737 | COMMUNICATOR_CONFIG_SECTION, | ||
1738 | IPPROTO_UDP, | ||
1739 | 1 /* one address */, | ||
1740 | (const struct sockaddr **) &in, | ||
1741 | &in_len, | ||
1742 | &nat_address_cb, | ||
1743 | try_connection_reversal, | ||
1744 | NULL /* closure */); | ||
1745 | if (NULL == ch) | ||
1746 | { | ||
1747 | GNUNET_break (0); | ||
1748 | GNUNET_SCHEDULER_shutdown (); | ||
1749 | return; | ||
1750 | } | ||
1751 | ah = GNUNET_TRANSPORT_application_init (cfg); | ||
1752 | if (NULL == ah) | ||
1753 | { | ||
1754 | GNUNET_break (0); | ||
1755 | GNUNET_SCHEDULER_shutdown (); | ||
1756 | return; | ||
1757 | } | ||
1758 | |||
1759 | /* start broadcasting */ | ||
1760 | // if (GNUNET_YES != | ||
1761 | // GNUNET_CONFIGURATION_get_value_yesno (cfg, | ||
1762 | // COMMUNICATOR_CONFIG_SECTION, | ||
1763 | // "DISABLE_BROADCAST")) | ||
1764 | // { | ||
1765 | // broadcast_task = GNUNET_SCHEDULER_add_now (&do_broadcast, NULL); | ||
1766 | // } | ||
1767 | } | ||
1768 | |||
1769 | |||
1770 | int | ||
1771 | main (int argc, char *const *argv) | ||
1772 | { | ||
1773 | static const struct GNUNET_GETOPT_CommandLineOption options[] = { | ||
1774 | GNUNET_GETOPT_OPTION_END | ||
1775 | }; | ||
1776 | int ret; | ||
1777 | |||
1778 | GNUNET_log_from_nocheck (GNUNET_ERROR_TYPE_DEBUG, | ||
1779 | "transport", | ||
1780 | "Starting quic communicator\n"); | ||
1781 | if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv)) | ||
1782 | return 2; | ||
1783 | |||
1784 | ret = (GNUNET_OK == GNUNET_PROGRAM_run (argc, | ||
1785 | argv, | ||
1786 | "gnunet-communicator-quic", | ||
1787 | _ ("GNUnet QUIC communicator"), | ||
1788 | options, | ||
1789 | &run, | ||
1790 | NULL)) | ||
1791 | ? 0 | ||
1792 | : 1; | ||
1793 | GNUNET_free_nz ((void *) argv); | ||
1794 | return ret; | ||
1795 | } | ||
diff --git a/src/service/transport/gnunet-communicator-tcp.c b/src/service/transport/gnunet-communicator-tcp.c new file mode 100644 index 000000000..02f5fc9f9 --- /dev/null +++ b/src/service/transport/gnunet-communicator-tcp.c | |||
@@ -0,0 +1,4182 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2010-2014, 2018, 2019 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/gnunet-communicator-tcp.c | ||
23 | * @brief Transport plugin using TCP. | ||
24 | * @author Christian Grothoff | ||
25 | * | ||
26 | * TODO: | ||
27 | * - support NAT connection reversal method (#5529) | ||
28 | * - support other TCP-specific NAT traversal methods (#5531) | ||
29 | */ | ||
30 | #include "gnunet_common.h" | ||
31 | #include "platform.h" | ||
32 | #include "gnunet_util_lib.h" | ||
33 | #include "gnunet_core_service.h" | ||
34 | #include "gnunet_peerstore_service.h" | ||
35 | #include "gnunet_protocols.h" | ||
36 | #include "gnunet_signatures.h" | ||
37 | #include "gnunet_constants.h" | ||
38 | #include "gnunet_nat_service.h" | ||
39 | #include "gnunet_statistics_service.h" | ||
40 | #include "gnunet_transport_communication_service.h" | ||
41 | #include "gnunet_resolver_service.h" | ||
42 | |||
43 | |||
44 | /** | ||
45 | * How long until we give up on establishing an NAT connection? | ||
46 | * Must be > 4 RTT | ||
47 | */ | ||
48 | #define NAT_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10) | ||
49 | |||
50 | /** | ||
51 | * How long do we believe our addresses to remain up (before | ||
52 | * the other peer should revalidate). | ||
53 | */ | ||
54 | #define ADDRESS_VALIDITY_PERIOD \ | ||
55 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 4) | ||
56 | |||
57 | /** | ||
58 | * How many messages do we keep at most in the queue to the | ||
59 | * transport service before we start to drop (default, | ||
60 | * can be changed via the configuration file). | ||
61 | * Should be _below_ the level of the communicator API, as | ||
62 | * otherwise we may read messages just to have them dropped | ||
63 | * by the communicator API. | ||
64 | */ | ||
65 | #define DEFAULT_MAX_QUEUE_LENGTH 8 | ||
66 | |||
67 | /** | ||
68 | * Size of our IO buffers for ciphertext data. Must be at | ||
69 | * least UINT_MAX + sizeof (struct TCPBox). | ||
70 | */ | ||
71 | #define BUF_SIZE (2 * 64 * 1024 + sizeof(struct TCPBox)) | ||
72 | |||
73 | /** | ||
74 | * How often do we rekey based on time (at least) | ||
75 | */ | ||
76 | #define DEFAULT_REKEY_INTERVAL GNUNET_TIME_UNIT_DAYS | ||
77 | |||
78 | /** | ||
79 | * How long do we wait until we must have received the initial KX? | ||
80 | */ | ||
81 | #define PROTO_QUEUE_TIMEOUT GNUNET_TIME_UNIT_MINUTES | ||
82 | |||
83 | /** | ||
84 | * How often do we rekey based on number of bytes transmitted? | ||
85 | * (additionally randomized). Currently 400 MB | ||
86 | */ | ||
87 | #define REKEY_MAX_BYTES (1024LLU * 1024 * 400) | ||
88 | |||
89 | /** | ||
90 | * Size of the initial key exchange message sent first in both | ||
91 | * directions. | ||
92 | */ | ||
93 | #define INITIAL_KX_SIZE \ | ||
94 | (sizeof(struct GNUNET_CRYPTO_EcdhePublicKey) \ | ||
95 | + sizeof(struct TCPConfirmation)) | ||
96 | |||
97 | /** | ||
98 | * Size of the initial core key exchange messages. | ||
99 | */ | ||
100 | #define INITIAL_CORE_KX_SIZE \ | ||
101 | (sizeof(struct EphemeralKeyMessage) \ | ||
102 | + sizeof(struct PingMessage) \ | ||
103 | + sizeof(struct PongMessage)) | ||
104 | |||
105 | /** | ||
106 | * Address prefix used by the communicator. | ||
107 | */ | ||
108 | #define COMMUNICATOR_ADDRESS_PREFIX "tcp" | ||
109 | |||
110 | /** | ||
111 | * Configuration section used by the communicator. | ||
112 | */ | ||
113 | #define COMMUNICATOR_CONFIG_SECTION "communicator-tcp" | ||
114 | |||
115 | GNUNET_NETWORK_STRUCT_BEGIN | ||
116 | |||
117 | |||
118 | /** | ||
119 | * Signature we use to verify that the ephemeral key was really chosen by | ||
120 | * the specified sender. | ||
121 | */ | ||
122 | struct TcpHandshakeSignature | ||
123 | { | ||
124 | /** | ||
125 | * Purpose must be #GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_TCP_HANDSHAKE | ||
126 | */ | ||
127 | struct GNUNET_CRYPTO_EccSignaturePurpose purpose; | ||
128 | |||
129 | /** | ||
130 | * Identity of the inititor of the TCP connection (TCP client). | ||
131 | */ | ||
132 | struct GNUNET_PeerIdentity sender; | ||
133 | |||
134 | /** | ||
135 | * Presumed identity of the target of the TCP connection (TCP server) | ||
136 | */ | ||
137 | struct GNUNET_PeerIdentity receiver; | ||
138 | |||
139 | /** | ||
140 | * Ephemeral key used by the @e sender. | ||
141 | */ | ||
142 | struct GNUNET_CRYPTO_EcdhePublicKey ephemeral; | ||
143 | |||
144 | /** | ||
145 | * Monotonic time of @e sender, to possibly help detect replay attacks | ||
146 | * (if receiver persists times by sender). | ||
147 | */ | ||
148 | struct GNUNET_TIME_AbsoluteNBO monotonic_time; | ||
149 | |||
150 | /** | ||
151 | * Challenge value used to protect against replay attack, if there is no stored monotonic time value. | ||
152 | */ | ||
153 | struct GNUNET_CRYPTO_ChallengeNonceP challenge; | ||
154 | }; | ||
155 | |||
156 | /** | ||
157 | * Signature we use to verify that the ack from the receiver of the ephemeral key was really send by | ||
158 | * the specified sender. | ||
159 | */ | ||
160 | struct TcpHandshakeAckSignature | ||
161 | { | ||
162 | /** | ||
163 | * Purpose must be #GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_TCP_HANDSHAKE_ACK | ||
164 | */ | ||
165 | struct GNUNET_CRYPTO_EccSignaturePurpose purpose; | ||
166 | |||
167 | /** | ||
168 | * Identity of the inititor of the TCP connection (TCP client). | ||
169 | */ | ||
170 | struct GNUNET_PeerIdentity sender; | ||
171 | |||
172 | /** | ||
173 | * Presumed identity of the target of the TCP connection (TCP server) | ||
174 | */ | ||
175 | struct GNUNET_PeerIdentity receiver; | ||
176 | |||
177 | /** | ||
178 | * Monotonic time of @e sender, to possibly help detect replay attacks | ||
179 | * (if receiver persists times by sender). | ||
180 | */ | ||
181 | struct GNUNET_TIME_AbsoluteNBO monotonic_time; | ||
182 | |||
183 | /** | ||
184 | * Challenge value used to protect against replay attack, if there is no stored monotonic time value. | ||
185 | */ | ||
186 | struct GNUNET_CRYPTO_ChallengeNonceP challenge; | ||
187 | }; | ||
188 | |||
189 | /** | ||
190 | * Encrypted continuation of TCP initial handshake. | ||
191 | */ | ||
192 | struct TCPConfirmation | ||
193 | { | ||
194 | /** | ||
195 | * Sender's identity | ||
196 | */ | ||
197 | struct GNUNET_PeerIdentity sender; | ||
198 | |||
199 | /** | ||
200 | * Sender's signature of type #GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_TCP_HANDSHAKE | ||
201 | */ | ||
202 | struct GNUNET_CRYPTO_EddsaSignature sender_sig; | ||
203 | |||
204 | /** | ||
205 | * Monotonic time of @e sender, to possibly help detect replay attacks | ||
206 | * (if receiver persists times by sender). | ||
207 | */ | ||
208 | struct GNUNET_TIME_AbsoluteNBO monotonic_time; | ||
209 | |||
210 | /** | ||
211 | * Challenge value used to protect against replay attack, if there is no stored monotonic time value. | ||
212 | */ | ||
213 | struct GNUNET_CRYPTO_ChallengeNonceP challenge; | ||
214 | |||
215 | }; | ||
216 | |||
217 | /** | ||
218 | * Ack for the encrypted continuation of TCP initial handshake. | ||
219 | */ | ||
220 | struct TCPConfirmationAck | ||
221 | { | ||
222 | |||
223 | |||
224 | /** | ||
225 | * Type is #GNUNET_MESSAGE_TYPE_COMMUNICATOR_TCP_CONFIRMATION_ACK. | ||
226 | */ | ||
227 | struct GNUNET_MessageHeader header; | ||
228 | |||
229 | /** | ||
230 | * Sender's identity | ||
231 | */ | ||
232 | struct GNUNET_PeerIdentity sender; | ||
233 | |||
234 | /** | ||
235 | * Sender's signature of type #GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_TCP_HANDSHAKE_ACK | ||
236 | */ | ||
237 | struct GNUNET_CRYPTO_EddsaSignature sender_sig; | ||
238 | |||
239 | /** | ||
240 | * Monotonic time of @e sender, to possibly help detect replay attacks | ||
241 | * (if receiver persists times by sender). | ||
242 | */ | ||
243 | struct GNUNET_TIME_AbsoluteNBO monotonic_time; | ||
244 | |||
245 | /** | ||
246 | * Challenge value used to protect against replay attack, if there is no stored monotonic time value. | ||
247 | */ | ||
248 | struct GNUNET_CRYPTO_ChallengeNonceP challenge; | ||
249 | |||
250 | }; | ||
251 | |||
252 | /** | ||
253 | * TCP message box. Always sent encrypted! | ||
254 | */ | ||
255 | struct TCPBox | ||
256 | { | ||
257 | /** | ||
258 | * Type is #GNUNET_MESSAGE_TYPE_COMMUNICATOR_TCP_BOX. Warning: the | ||
259 | * header size EXCLUDES the size of the `struct TCPBox`. We usually | ||
260 | * never do this, but here the payload may truly be 64k *after* the | ||
261 | * TCPBox (as we have no MTU)!! | ||
262 | */ | ||
263 | struct GNUNET_MessageHeader header; | ||
264 | |||
265 | /** | ||
266 | * HMAC for the following encrypted message. Yes, we MUST use | ||
267 | * mac-then-encrypt here, as we want to hide the message sizes on | ||
268 | * the wire (zero plaintext design!). Using CTR mode, padding oracle | ||
269 | * attacks do not apply. Besides, due to the use of ephemeral keys | ||
270 | * (hopefully with effective replay protection from monotonic time!) | ||
271 | * the attacker is limited in using the oracle. | ||
272 | */ | ||
273 | struct GNUNET_ShortHashCode hmac; | ||
274 | |||
275 | /* followed by as may bytes of payload as indicated in @e header, | ||
276 | excluding the TCPBox itself! */ | ||
277 | }; | ||
278 | |||
279 | |||
280 | /** | ||
281 | * TCP rekey message box. Always sent encrypted! Data after | ||
282 | * this message will use the new key. | ||
283 | */ | ||
284 | struct TCPRekey | ||
285 | { | ||
286 | /** | ||
287 | * Type is #GNUNET_MESSAGE_TYPE_COMMUNICATOR_TCP_REKEY. | ||
288 | */ | ||
289 | struct GNUNET_MessageHeader header; | ||
290 | |||
291 | /** | ||
292 | * HMAC for the following encrypted message. Yes, we MUST use | ||
293 | * mac-then-encrypt here, as we want to hide the message sizes on | ||
294 | * the wire (zero plaintext design!). Using CTR mode padding oracle | ||
295 | * attacks do not apply. Besides, due to the use of ephemeral keys | ||
296 | * (hopefully with effective replay protection from monotonic time!) | ||
297 | * the attacker is limited in using the oracle. | ||
298 | */ | ||
299 | struct GNUNET_ShortHashCode hmac; | ||
300 | |||
301 | /** | ||
302 | * New ephemeral key. | ||
303 | */ | ||
304 | struct GNUNET_CRYPTO_EcdhePublicKey ephemeral; | ||
305 | |||
306 | /** | ||
307 | * Sender's signature of type #GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_TCP_REKEY | ||
308 | */ | ||
309 | struct GNUNET_CRYPTO_EddsaSignature sender_sig; | ||
310 | |||
311 | /** | ||
312 | * Monotonic time of @e sender, to possibly help detect replay attacks | ||
313 | * (if receiver persists times by sender). | ||
314 | */ | ||
315 | struct GNUNET_TIME_AbsoluteNBO monotonic_time; | ||
316 | }; | ||
317 | |||
318 | /** | ||
319 | * Signature we use to verify that the ephemeral key was really chosen by | ||
320 | * the specified sender. | ||
321 | */ | ||
322 | struct TcpRekeySignature | ||
323 | { | ||
324 | /** | ||
325 | * Purpose must be #GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_TCP_REKEY | ||
326 | */ | ||
327 | struct GNUNET_CRYPTO_EccSignaturePurpose purpose; | ||
328 | |||
329 | /** | ||
330 | * Identity of the inititor of the TCP connection (TCP client). | ||
331 | */ | ||
332 | struct GNUNET_PeerIdentity sender; | ||
333 | |||
334 | /** | ||
335 | * Presumed identity of the target of the TCP connection (TCP server) | ||
336 | */ | ||
337 | struct GNUNET_PeerIdentity receiver; | ||
338 | |||
339 | /** | ||
340 | * Ephemeral key used by the @e sender. | ||
341 | */ | ||
342 | struct GNUNET_CRYPTO_EcdhePublicKey ephemeral; | ||
343 | |||
344 | /** | ||
345 | * Monotonic time of @e sender, to possibly help detect replay attacks | ||
346 | * (if receiver persists times by sender). | ||
347 | */ | ||
348 | struct GNUNET_TIME_AbsoluteNBO monotonic_time; | ||
349 | }; | ||
350 | |||
351 | /** | ||
352 | * TCP finish. Sender asks for the connection to be closed. | ||
353 | * Needed/useful in case we drop RST/FIN packets on the GNUnet | ||
354 | * port due to the possibility of malicious RST/FIN injection. | ||
355 | */ | ||
356 | struct TCPFinish | ||
357 | { | ||
358 | /** | ||
359 | * Type is #GNUNET_MESSAGE_TYPE_COMMUNICATOR_TCP_FINISH. | ||
360 | */ | ||
361 | struct GNUNET_MessageHeader header; | ||
362 | |||
363 | /** | ||
364 | * HMAC for the following encrypted message. Yes, we MUST use | ||
365 | * mac-then-encrypt here, as we want to hide the message sizes on | ||
366 | * the wire (zero plaintext design!). Using CTR mode padding oracle | ||
367 | * attacks do not apply. Besides, due to the use of ephemeral keys | ||
368 | * (hopefully with effective replay protection from monotonic time!) | ||
369 | * the attacker is limited in using the oracle. | ||
370 | */ | ||
371 | struct GNUNET_ShortHashCode hmac; | ||
372 | }; | ||
373 | |||
374 | /** | ||
375 | * Basically a WELCOME message, but with the purpose | ||
376 | * of giving the waiting peer a client handle to use | ||
377 | */ | ||
378 | struct TCPNATProbeMessage | ||
379 | { | ||
380 | /** | ||
381 | * Type is #GNUNET_MESSAGE_TYPE_TRANSPORT_TCP_NAT_PROBE. | ||
382 | */ | ||
383 | struct GNUNET_MessageHeader header; | ||
384 | |||
385 | /** | ||
386 | * Identity of the sender of the message. | ||
387 | */ | ||
388 | struct GNUNET_PeerIdentity clientIdentity; | ||
389 | }; | ||
390 | |||
391 | GNUNET_NETWORK_STRUCT_END | ||
392 | |||
393 | /** | ||
394 | * Struct for pending nat reversals. | ||
395 | */ | ||
396 | struct PendingReversal | ||
397 | { | ||
398 | /* | ||
399 | * Timeout task. | ||
400 | */ | ||
401 | struct GNUNET_SCHEDULER_Task *timeout_task; | ||
402 | |||
403 | /** | ||
404 | * To whom are we like to talk to. | ||
405 | */ | ||
406 | struct GNUNET_PeerIdentity target; | ||
407 | |||
408 | /** | ||
409 | * Address the reversal was send to. | ||
410 | */ | ||
411 | struct sockaddr *in; | ||
412 | }; | ||
413 | |||
414 | /** | ||
415 | * Struct to use as closure. | ||
416 | */ | ||
417 | struct ListenTask | ||
418 | { | ||
419 | /** | ||
420 | * ID of listen task | ||
421 | */ | ||
422 | struct GNUNET_SCHEDULER_Task *listen_task; | ||
423 | |||
424 | /** | ||
425 | * Listen socket. | ||
426 | */ | ||
427 | struct GNUNET_NETWORK_Handle *listen_sock; | ||
428 | }; | ||
429 | |||
430 | /** | ||
431 | * Handle for a queue. | ||
432 | */ | ||
433 | struct Queue | ||
434 | { | ||
435 | /** | ||
436 | * To whom are we talking to. | ||
437 | */ | ||
438 | struct GNUNET_PeerIdentity target; | ||
439 | |||
440 | /** | ||
441 | * Listen socket. | ||
442 | */ | ||
443 | struct GNUNET_NETWORK_Handle *listen_sock; | ||
444 | |||
445 | /** | ||
446 | * socket that we transmit all data with on this queue | ||
447 | */ | ||
448 | struct GNUNET_NETWORK_Handle *sock; | ||
449 | |||
450 | /** | ||
451 | * cipher for decryption of incoming data. | ||
452 | */ | ||
453 | gcry_cipher_hd_t in_cipher; | ||
454 | |||
455 | /** | ||
456 | * cipher for encryption of outgoing data. | ||
457 | */ | ||
458 | gcry_cipher_hd_t out_cipher; | ||
459 | |||
460 | /** | ||
461 | * Key in hash map | ||
462 | */ | ||
463 | struct GNUNET_HashCode key; | ||
464 | |||
465 | /** | ||
466 | * Shared secret for HMAC verification on incoming data. | ||
467 | */ | ||
468 | struct GNUNET_HashCode in_hmac; | ||
469 | |||
470 | /** | ||
471 | * Shared secret for HMAC generation on outgoing data, ratcheted after | ||
472 | * each operation. | ||
473 | */ | ||
474 | struct GNUNET_HashCode out_hmac; | ||
475 | |||
476 | /** | ||
477 | * ID of read task for this connection. | ||
478 | */ | ||
479 | struct GNUNET_SCHEDULER_Task *read_task; | ||
480 | |||
481 | /** | ||
482 | * ID of write task for this connection. | ||
483 | */ | ||
484 | struct GNUNET_SCHEDULER_Task *write_task; | ||
485 | |||
486 | /** | ||
487 | * Address of the other peer. | ||
488 | */ | ||
489 | struct sockaddr *address; | ||
490 | |||
491 | /** | ||
492 | * How many more bytes may we sent with the current @e out_cipher | ||
493 | * before we should rekey? | ||
494 | */ | ||
495 | uint64_t rekey_left_bytes; | ||
496 | |||
497 | /** | ||
498 | * Until what time may we sent with the current @e out_cipher | ||
499 | * before we should rekey? | ||
500 | */ | ||
501 | struct GNUNET_TIME_Absolute rekey_time; | ||
502 | |||
503 | /** | ||
504 | * Length of the address. | ||
505 | */ | ||
506 | socklen_t address_len; | ||
507 | |||
508 | /** | ||
509 | * Message queue we are providing for the #ch. | ||
510 | */ | ||
511 | struct GNUNET_MQ_Handle *mq; | ||
512 | |||
513 | /** | ||
514 | * handle for this queue with the #ch. | ||
515 | */ | ||
516 | struct GNUNET_TRANSPORT_QueueHandle *qh; | ||
517 | |||
518 | /** | ||
519 | * Number of bytes we currently have in our write queue. | ||
520 | */ | ||
521 | unsigned long long bytes_in_queue; | ||
522 | |||
523 | /** | ||
524 | * Buffer for reading ciphertext from network into. | ||
525 | */ | ||
526 | char cread_buf[BUF_SIZE]; | ||
527 | |||
528 | /** | ||
529 | * buffer for writing ciphertext to network. | ||
530 | */ | ||
531 | char cwrite_buf[BUF_SIZE]; | ||
532 | |||
533 | /** | ||
534 | * Plaintext buffer for decrypted plaintext. | ||
535 | */ | ||
536 | char pread_buf[UINT16_MAX + 1 + sizeof(struct TCPBox)]; | ||
537 | |||
538 | /** | ||
539 | * Plaintext buffer for messages to be encrypted. | ||
540 | */ | ||
541 | char pwrite_buf[UINT16_MAX + 1 + sizeof(struct TCPBox)]; | ||
542 | |||
543 | /** | ||
544 | * At which offset in the ciphertext read buffer should we | ||
545 | * append more ciphertext for transmission next? | ||
546 | */ | ||
547 | size_t cread_off; | ||
548 | |||
549 | /** | ||
550 | * At which offset in the ciphertext write buffer should we | ||
551 | * append more ciphertext from reading next? | ||
552 | */ | ||
553 | size_t cwrite_off; | ||
554 | |||
555 | /** | ||
556 | * At which offset in the plaintext input buffer should we | ||
557 | * append more plaintext from decryption next? | ||
558 | */ | ||
559 | size_t pread_off; | ||
560 | |||
561 | /** | ||
562 | * At which offset in the plaintext output buffer should we | ||
563 | * append more plaintext for encryption next? | ||
564 | */ | ||
565 | size_t pwrite_off; | ||
566 | |||
567 | /** | ||
568 | * Timeout for this queue. | ||
569 | */ | ||
570 | struct GNUNET_TIME_Absolute timeout; | ||
571 | |||
572 | /** | ||
573 | * How may messages did we pass from this queue to CORE for which we | ||
574 | * have yet to receive an acknoweldgement that CORE is done with | ||
575 | * them? If "large" (or even just non-zero), we should throttle | ||
576 | * reading to provide flow control. See also #DEFAULT_MAX_QUEUE_LENGTH | ||
577 | * and #max_queue_length. | ||
578 | */ | ||
579 | unsigned int backpressure; | ||
580 | |||
581 | /** | ||
582 | * Which network type does this queue use? | ||
583 | */ | ||
584 | enum GNUNET_NetworkType nt; | ||
585 | |||
586 | /** | ||
587 | * The connection status of this queue. | ||
588 | */ | ||
589 | enum GNUNET_TRANSPORT_ConnectionStatus cs; | ||
590 | |||
591 | /** | ||
592 | * Is MQ awaiting a #GNUNET_MQ_impl_send_continue() call? | ||
593 | */ | ||
594 | int mq_awaits_continue; | ||
595 | |||
596 | /** | ||
597 | * Did we enqueue a finish message and are closing down the queue? | ||
598 | */ | ||
599 | int finishing; | ||
600 | |||
601 | /** | ||
602 | * Did we technically destroy this queue, but kept the allocation | ||
603 | * around because of @e backpressure not being zero yet? Used | ||
604 | * simply to delay the final #GNUNET_free() operation until | ||
605 | * #core_read_finished_cb() has been called. | ||
606 | */ | ||
607 | int destroyed; | ||
608 | |||
609 | /** | ||
610 | * #GNUNET_YES if we just rekeyed and must thus possibly | ||
611 | * re-decrypt ciphertext. | ||
612 | */ | ||
613 | int rekeyed; | ||
614 | |||
615 | /** | ||
616 | * Monotonic time value for rekey message. | ||
617 | */ | ||
618 | struct GNUNET_TIME_AbsoluteNBO rekey_monotonic_time; | ||
619 | |||
620 | /** | ||
621 | * Monotonic time value for handshake message. | ||
622 | */ | ||
623 | struct GNUNET_TIME_AbsoluteNBO handshake_monotonic_time; | ||
624 | |||
625 | /** | ||
626 | * Monotonic time value for handshake ack message. | ||
627 | */ | ||
628 | struct GNUNET_TIME_AbsoluteNBO handshake_ack_monotonic_time; | ||
629 | |||
630 | /** | ||
631 | * Challenge value used to protect against replay attack, if there is no stored monotonic time value. | ||
632 | */ | ||
633 | struct GNUNET_CRYPTO_ChallengeNonceP challenge; | ||
634 | |||
635 | /** | ||
636 | * Challenge value received. In case of inbound connection we have to remember the value, because we send the challenge back later after we received the GNUNET_MESSAGE_TYPE_COMMUNICATOR_TCP_CONFIRMATION_ACK. | ||
637 | */ | ||
638 | struct GNUNET_CRYPTO_ChallengeNonceP challenge_received; | ||
639 | |||
640 | /** | ||
641 | * Iteration Context for retrieving the monotonic time send with key for rekeying. | ||
642 | */ | ||
643 | struct GNUNET_PEERSTORE_IterateContext *rekey_monotime_get; | ||
644 | |||
645 | /** | ||
646 | * Iteration Context for retrieving the monotonic time send with the handshake. | ||
647 | */ | ||
648 | struct GNUNET_PEERSTORE_IterateContext *handshake_monotime_get; | ||
649 | |||
650 | /** | ||
651 | * Iteration Context for retrieving the monotonic time send with the handshake ack. | ||
652 | */ | ||
653 | struct GNUNET_PEERSTORE_IterateContext *handshake_ack_monotime_get; | ||
654 | |||
655 | /** | ||
656 | * Store Context for retrieving the monotonic time send with key for rekeying. | ||
657 | */ | ||
658 | struct GNUNET_PEERSTORE_StoreContext *rekey_monotime_sc; | ||
659 | |||
660 | /** | ||
661 | * Store Context for retrieving the monotonic time send with the handshake. | ||
662 | */ | ||
663 | struct GNUNET_PEERSTORE_StoreContext *handshake_monotime_sc; | ||
664 | |||
665 | /** | ||
666 | * Store Context for retrieving the monotonic time send with the handshake ack. | ||
667 | */ | ||
668 | struct GNUNET_PEERSTORE_StoreContext *handshake_ack_monotime_sc; | ||
669 | |||
670 | /** | ||
671 | * Size of data received without KX challenge played back. | ||
672 | */ | ||
673 | // TODO remove? | ||
674 | size_t unverified_size; | ||
675 | |||
676 | /** | ||
677 | * Has the initial (core) handshake already happened? | ||
678 | */ | ||
679 | int initial_core_kx_done; | ||
680 | }; | ||
681 | |||
682 | |||
683 | /** | ||
684 | * Handle for an incoming connection where we do not yet have enough | ||
685 | * information to setup a full queue. | ||
686 | */ | ||
687 | struct ProtoQueue | ||
688 | { | ||
689 | /** | ||
690 | * Kept in a DLL. | ||
691 | */ | ||
692 | struct ProtoQueue *next; | ||
693 | |||
694 | /** | ||
695 | * Kept in a DLL. | ||
696 | */ | ||
697 | struct ProtoQueue *prev; | ||
698 | |||
699 | /** | ||
700 | * Listen socket. | ||
701 | */ | ||
702 | struct GNUNET_NETWORK_Handle *listen_sock; | ||
703 | |||
704 | /** | ||
705 | * socket that we transmit all data with on this queue | ||
706 | */ | ||
707 | struct GNUNET_NETWORK_Handle *sock; | ||
708 | |||
709 | /** | ||
710 | * ID of write task for this connection. | ||
711 | */ | ||
712 | struct GNUNET_SCHEDULER_Task *write_task; | ||
713 | |||
714 | /** | ||
715 | * buffer for writing struct TCPNATProbeMessage to network. | ||
716 | */ | ||
717 | char write_buf[sizeof (struct TCPNATProbeMessage)]; | ||
718 | |||
719 | /** | ||
720 | * Offset of the buffer? | ||
721 | */ | ||
722 | size_t write_off; | ||
723 | |||
724 | /** | ||
725 | * ID of read task for this connection. | ||
726 | */ | ||
727 | struct GNUNET_SCHEDULER_Task *read_task; | ||
728 | |||
729 | /** | ||
730 | * Address of the other peer. | ||
731 | */ | ||
732 | struct sockaddr *address; | ||
733 | |||
734 | /** | ||
735 | * Length of the address. | ||
736 | */ | ||
737 | socklen_t address_len; | ||
738 | |||
739 | /** | ||
740 | * Timeout for this protoqueue. | ||
741 | */ | ||
742 | struct GNUNET_TIME_Absolute timeout; | ||
743 | |||
744 | /** | ||
745 | * Buffer for reading all the information we need to upgrade from | ||
746 | * protoqueue to queue. | ||
747 | */ | ||
748 | char ibuf[INITIAL_KX_SIZE]; | ||
749 | |||
750 | /** | ||
751 | * Current offset for reading into @e ibuf. | ||
752 | */ | ||
753 | size_t ibuf_off; | ||
754 | }; | ||
755 | |||
756 | /** | ||
757 | * In case of port only configuration we like to bind to ipv4 and ipv6 addresses. | ||
758 | */ | ||
759 | struct PortOnlyIpv4Ipv6 | ||
760 | { | ||
761 | /** | ||
762 | * Ipv4 address we like to bind to. | ||
763 | */ | ||
764 | struct sockaddr *addr_ipv4; | ||
765 | |||
766 | /** | ||
767 | * Length of ipv4 address. | ||
768 | */ | ||
769 | socklen_t addr_len_ipv4; | ||
770 | |||
771 | /** | ||
772 | * Ipv6 address we like to bind to. | ||
773 | */ | ||
774 | struct sockaddr *addr_ipv6; | ||
775 | |||
776 | /** | ||
777 | * Length of ipv6 address. | ||
778 | */ | ||
779 | socklen_t addr_len_ipv6; | ||
780 | |||
781 | }; | ||
782 | |||
783 | /** | ||
784 | * DLL to store the addresses we like to register at NAT service. | ||
785 | */ | ||
786 | struct Addresses | ||
787 | { | ||
788 | /** | ||
789 | * Kept in a DLL. | ||
790 | */ | ||
791 | struct Addresses *next; | ||
792 | |||
793 | /** | ||
794 | * Kept in a DLL. | ||
795 | */ | ||
796 | struct Addresses *prev; | ||
797 | |||
798 | /** | ||
799 | * Address we like to register at NAT service. | ||
800 | */ | ||
801 | struct sockaddr *addr; | ||
802 | |||
803 | /** | ||
804 | * Length of address we like to register at NAT service. | ||
805 | */ | ||
806 | socklen_t addr_len; | ||
807 | |||
808 | }; | ||
809 | |||
810 | |||
811 | /** | ||
812 | * Maximum queue length before we stop reading towards the transport service. | ||
813 | */ | ||
814 | static unsigned long long max_queue_length; | ||
815 | |||
816 | /** | ||
817 | * For logging statistics. | ||
818 | */ | ||
819 | static struct GNUNET_STATISTICS_Handle *stats; | ||
820 | |||
821 | /** | ||
822 | * Our environment. | ||
823 | */ | ||
824 | static struct GNUNET_TRANSPORT_CommunicatorHandle *ch; | ||
825 | |||
826 | /** | ||
827 | * Queues (map from peer identity to `struct Queue`) | ||
828 | */ | ||
829 | static struct GNUNET_CONTAINER_MultiHashMap *queue_map; | ||
830 | |||
831 | /** | ||
832 | * ListenTasks (map from socket to `struct ListenTask`) | ||
833 | */ | ||
834 | static struct GNUNET_CONTAINER_MultiHashMap *lt_map; | ||
835 | |||
836 | /** | ||
837 | * Our public key. | ||
838 | */ | ||
839 | static struct GNUNET_PeerIdentity my_identity; | ||
840 | |||
841 | /** | ||
842 | * The rekey byte maximum | ||
843 | */ | ||
844 | static unsigned long long rekey_max_bytes; | ||
845 | |||
846 | /** | ||
847 | * The rekey interval | ||
848 | */ | ||
849 | static struct GNUNET_TIME_Relative rekey_interval; | ||
850 | |||
851 | /** | ||
852 | * Our private key. | ||
853 | */ | ||
854 | static struct GNUNET_CRYPTO_EddsaPrivateKey *my_private_key; | ||
855 | |||
856 | /** | ||
857 | * Our configuration. | ||
858 | */ | ||
859 | static const struct GNUNET_CONFIGURATION_Handle *cfg; | ||
860 | |||
861 | /** | ||
862 | * Network scanner to determine network types. | ||
863 | */ | ||
864 | static struct GNUNET_NT_InterfaceScanner *is; | ||
865 | |||
866 | /** | ||
867 | * Connection to NAT service. | ||
868 | */ | ||
869 | static struct GNUNET_NAT_Handle *nat; | ||
870 | |||
871 | /** | ||
872 | * Protoqueues DLL head. | ||
873 | */ | ||
874 | static struct ProtoQueue *proto_head; | ||
875 | |||
876 | /** | ||
877 | * Protoqueues DLL tail. | ||
878 | */ | ||
879 | static struct ProtoQueue *proto_tail; | ||
880 | |||
881 | /** | ||
882 | * Handle for DNS lookup of bindto address | ||
883 | */ | ||
884 | struct GNUNET_RESOLVER_RequestHandle *resolve_request_handle; | ||
885 | |||
886 | /** | ||
887 | * Head of DLL with addresses we like to register at NAT servcie. | ||
888 | */ | ||
889 | static struct Addresses *addrs_head; | ||
890 | |||
891 | /** | ||
892 | * Head of DLL with addresses we like to register at NAT servcie. | ||
893 | */ | ||
894 | static struct Addresses *addrs_tail; | ||
895 | |||
896 | /** | ||
897 | * Number of addresses in the DLL for register at NAT service. | ||
898 | */ | ||
899 | static int addrs_lens; | ||
900 | |||
901 | /** | ||
902 | * Database for peer's HELLOs. | ||
903 | */ | ||
904 | static struct GNUNET_PEERSTORE_Handle *peerstore; | ||
905 | |||
906 | /** | ||
907 | * A flag indicating we are already doing a shutdown. | ||
908 | */ | ||
909 | static int shutdown_running = GNUNET_NO; | ||
910 | |||
911 | /** | ||
912 | * IPv6 disabled. | ||
913 | */ | ||
914 | static int disable_v6; | ||
915 | |||
916 | /** | ||
917 | * The port the communicator should be assigned to. | ||
918 | */ | ||
919 | static unsigned int bind_port; | ||
920 | |||
921 | /** | ||
922 | * Map of pending reversals. | ||
923 | */ | ||
924 | static struct GNUNET_CONTAINER_MultiHashMap *pending_reversals; | ||
925 | |||
926 | /** | ||
927 | * We have been notified that our listen socket has something to | ||
928 | * read. Do the read and reschedule this function to be called again | ||
929 | * once more is available. | ||
930 | * | ||
931 | * @param cls NULL | ||
932 | */ | ||
933 | static void | ||
934 | listen_cb (void *cls); | ||
935 | |||
936 | /** | ||
937 | * Functions with this signature are called whenever we need | ||
938 | * to close a queue due to a disconnect or failure to | ||
939 | * establish a connection. | ||
940 | * | ||
941 | * @param queue queue to close down | ||
942 | */ | ||
943 | static void | ||
944 | queue_destroy (struct Queue *queue) | ||
945 | { | ||
946 | struct ListenTask *lt = NULL; | ||
947 | struct GNUNET_HashCode h_sock; | ||
948 | int sockfd; | ||
949 | |||
950 | if (NULL != queue->listen_sock) | ||
951 | { | ||
952 | sockfd = GNUNET_NETWORK_get_fd (queue->listen_sock); | ||
953 | GNUNET_CRYPTO_hash (&sockfd, | ||
954 | sizeof(int), | ||
955 | &h_sock); | ||
956 | |||
957 | lt = GNUNET_CONTAINER_multihashmap_get (lt_map, &h_sock); | ||
958 | } | ||
959 | |||
960 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
961 | "Disconnecting queue for peer `%s'\n", | ||
962 | GNUNET_i2s (&queue->target)); | ||
963 | if (NULL != queue->rekey_monotime_sc) | ||
964 | { | ||
965 | GNUNET_PEERSTORE_store_cancel (queue->rekey_monotime_sc); | ||
966 | queue->rekey_monotime_sc = NULL; | ||
967 | } | ||
968 | if (NULL != queue->handshake_monotime_sc) | ||
969 | { | ||
970 | GNUNET_PEERSTORE_store_cancel (queue->handshake_monotime_sc); | ||
971 | queue->handshake_monotime_sc = NULL; | ||
972 | } | ||
973 | if (NULL != queue->handshake_ack_monotime_sc) | ||
974 | { | ||
975 | GNUNET_PEERSTORE_store_cancel (queue->handshake_ack_monotime_sc); | ||
976 | queue->handshake_ack_monotime_sc = NULL; | ||
977 | } | ||
978 | if (NULL != queue->rekey_monotime_get) | ||
979 | { | ||
980 | GNUNET_PEERSTORE_iteration_stop (queue->rekey_monotime_get); | ||
981 | queue->rekey_monotime_get = NULL; | ||
982 | } | ||
983 | if (NULL != queue->handshake_monotime_get) | ||
984 | { | ||
985 | GNUNET_PEERSTORE_iteration_stop (queue->handshake_monotime_get); | ||
986 | queue->handshake_monotime_get = NULL; | ||
987 | } | ||
988 | if (NULL != queue->handshake_ack_monotime_get) | ||
989 | { | ||
990 | GNUNET_PEERSTORE_iteration_stop (queue->handshake_ack_monotime_get); | ||
991 | queue->handshake_ack_monotime_get = NULL; | ||
992 | } | ||
993 | if (NULL != queue->qh) | ||
994 | { | ||
995 | GNUNET_TRANSPORT_communicator_mq_del (queue->qh); | ||
996 | queue->qh = NULL; | ||
997 | } | ||
998 | GNUNET_assert ( | ||
999 | GNUNET_YES == | ||
1000 | GNUNET_CONTAINER_multihashmap_remove (queue_map, &queue->key, queue)); | ||
1001 | GNUNET_STATISTICS_set (stats, | ||
1002 | "# queues active", | ||
1003 | GNUNET_CONTAINER_multihashmap_size (queue_map), | ||
1004 | GNUNET_NO); | ||
1005 | if (NULL != queue->read_task) | ||
1006 | { | ||
1007 | GNUNET_SCHEDULER_cancel (queue->read_task); | ||
1008 | queue->read_task = NULL; | ||
1009 | } | ||
1010 | if (NULL != queue->write_task) | ||
1011 | { | ||
1012 | GNUNET_SCHEDULER_cancel (queue->write_task); | ||
1013 | queue->write_task = NULL; | ||
1014 | } | ||
1015 | if (GNUNET_SYSERR == GNUNET_NETWORK_socket_close (queue->sock)) | ||
1016 | { | ||
1017 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1018 | "closing socket failed\n"); | ||
1019 | } | ||
1020 | gcry_cipher_close (queue->in_cipher); | ||
1021 | gcry_cipher_close (queue->out_cipher); | ||
1022 | GNUNET_free (queue->address); | ||
1023 | if (0 != queue->backpressure) | ||
1024 | queue->destroyed = GNUNET_YES; | ||
1025 | else | ||
1026 | GNUNET_free (queue); | ||
1027 | |||
1028 | if (NULL == lt) | ||
1029 | return; | ||
1030 | |||
1031 | if ((! shutdown_running) && (NULL == lt->listen_task)) | ||
1032 | { | ||
1033 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1034 | "add read net listen\n"); | ||
1035 | lt->listen_task = GNUNET_SCHEDULER_add_read_net ( | ||
1036 | GNUNET_TIME_UNIT_FOREVER_REL, | ||
1037 | lt->listen_sock, | ||
1038 | &listen_cb, | ||
1039 | lt); | ||
1040 | } | ||
1041 | else | ||
1042 | GNUNET_free (lt); | ||
1043 | } | ||
1044 | |||
1045 | |||
1046 | /** | ||
1047 | * Compute @a mac over @a buf, and ratched the @a hmac_secret. | ||
1048 | * | ||
1049 | * @param[in,out] hmac_secret secret for HMAC calculation | ||
1050 | * @param buf buffer to MAC | ||
1051 | * @param buf_size number of bytes in @a buf | ||
1052 | * @param[out] smac where to write the HMAC | ||
1053 | */ | ||
1054 | static void | ||
1055 | calculate_hmac (struct GNUNET_HashCode *hmac_secret, | ||
1056 | const void *buf, | ||
1057 | size_t buf_size, | ||
1058 | struct GNUNET_ShortHashCode *smac) | ||
1059 | { | ||
1060 | struct GNUNET_HashCode mac; | ||
1061 | |||
1062 | GNUNET_CRYPTO_hmac_raw (hmac_secret, | ||
1063 | sizeof(struct GNUNET_HashCode), | ||
1064 | buf, | ||
1065 | buf_size, | ||
1066 | &mac); | ||
1067 | /* truncate to `struct GNUNET_ShortHashCode` */ | ||
1068 | memcpy (smac, &mac, sizeof(struct GNUNET_ShortHashCode)); | ||
1069 | /* ratchet hmac key */ | ||
1070 | GNUNET_CRYPTO_hash (hmac_secret, | ||
1071 | sizeof(struct GNUNET_HashCode), | ||
1072 | hmac_secret); | ||
1073 | } | ||
1074 | |||
1075 | |||
1076 | /** | ||
1077 | * Append a 'finish' message to the outgoing transmission. Once the | ||
1078 | * finish has been transmitted, destroy the queue. | ||
1079 | * | ||
1080 | * @param queue queue to shut down nicely | ||
1081 | */ | ||
1082 | static void | ||
1083 | queue_finish (struct Queue *queue) | ||
1084 | { | ||
1085 | struct TCPFinish fin; | ||
1086 | |||
1087 | memset (&fin, 0, sizeof(fin)); | ||
1088 | fin.header.size = htons (sizeof(fin)); | ||
1089 | fin.header.type = htons (GNUNET_MESSAGE_TYPE_COMMUNICATOR_TCP_FINISH); | ||
1090 | calculate_hmac (&queue->out_hmac, &fin, sizeof(fin), &fin.hmac); | ||
1091 | /* if there is any message left in pwrite_buf, we | ||
1092 | overwrite it (possibly dropping the last message | ||
1093 | from CORE hard here) */ | ||
1094 | memcpy (queue->pwrite_buf, &fin, sizeof(fin)); | ||
1095 | queue->pwrite_off = sizeof(fin); | ||
1096 | /* This flag will ensure that #queue_write() no longer | ||
1097 | notifies CORE about the possibility of sending | ||
1098 | more data, and that #queue_write() will call | ||
1099 | #queue_destroy() once the @c fin was fully written. */ | ||
1100 | queue->finishing = GNUNET_YES; | ||
1101 | } | ||
1102 | |||
1103 | |||
1104 | /** | ||
1105 | * Queue read task. If we hit the timeout, disconnect it | ||
1106 | * | ||
1107 | * @param cls the `struct Queue *` to disconnect | ||
1108 | */ | ||
1109 | static void | ||
1110 | queue_read (void *cls); | ||
1111 | |||
1112 | |||
1113 | /** | ||
1114 | * Core tells us it is done processing a message that transport | ||
1115 | * received on a queue with status @a success. | ||
1116 | * | ||
1117 | * @param cls a `struct Queue *` where the message originally came from | ||
1118 | * @param success #GNUNET_OK on success | ||
1119 | */ | ||
1120 | static void | ||
1121 | core_read_finished_cb (void *cls, int success) | ||
1122 | { | ||
1123 | struct Queue *queue = cls; | ||
1124 | if (GNUNET_OK != success) | ||
1125 | GNUNET_STATISTICS_update (stats, | ||
1126 | "# messages lost in communicator API towards CORE", | ||
1127 | 1, | ||
1128 | GNUNET_NO); | ||
1129 | if (NULL == queue) | ||
1130 | return; | ||
1131 | |||
1132 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1133 | "backpressure %u\n", | ||
1134 | queue->backpressure); | ||
1135 | |||
1136 | queue->backpressure--; | ||
1137 | /* handle deferred queue destruction */ | ||
1138 | if ((queue->destroyed) && (0 == queue->backpressure)) | ||
1139 | { | ||
1140 | GNUNET_free (queue); | ||
1141 | return; | ||
1142 | } | ||
1143 | else if (GNUNET_YES != queue->destroyed) | ||
1144 | { | ||
1145 | queue->timeout = | ||
1146 | GNUNET_TIME_relative_to_absolute (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT | ||
1147 | ); | ||
1148 | /* possibly unchoke reading, now that CORE made progress */ | ||
1149 | if (NULL == queue->read_task) | ||
1150 | queue->read_task = | ||
1151 | GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_absolute_get_remaining ( | ||
1152 | queue->timeout), | ||
1153 | queue->sock, | ||
1154 | &queue_read, | ||
1155 | queue); | ||
1156 | } | ||
1157 | } | ||
1158 | |||
1159 | |||
1160 | /** | ||
1161 | * We received @a plaintext_len bytes of @a plaintext on @a queue. | ||
1162 | * Pass it on to CORE. If transmission is actually happening, | ||
1163 | * increase backpressure counter. | ||
1164 | * | ||
1165 | * @param queue the queue that received the plaintext | ||
1166 | * @param plaintext the plaintext that was received | ||
1167 | * @param plaintext_len number of bytes of plaintext received | ||
1168 | */ | ||
1169 | static void | ||
1170 | pass_plaintext_to_core (struct Queue *queue, | ||
1171 | const void *plaintext, | ||
1172 | size_t plaintext_len) | ||
1173 | { | ||
1174 | const struct GNUNET_MessageHeader *hdr = plaintext; | ||
1175 | int ret; | ||
1176 | |||
1177 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1178 | "pass message from %s to core\n", | ||
1179 | GNUNET_i2s (&queue->target)); | ||
1180 | |||
1181 | if (ntohs (hdr->size) != plaintext_len) | ||
1182 | { | ||
1183 | /* NOTE: If we ever allow multiple CORE messages in one | ||
1184 | BOX, this will have to change! */ | ||
1185 | GNUNET_break (0); | ||
1186 | return; | ||
1187 | } | ||
1188 | ret = GNUNET_TRANSPORT_communicator_receive (ch, | ||
1189 | &queue->target, | ||
1190 | hdr, | ||
1191 | ADDRESS_VALIDITY_PERIOD, | ||
1192 | &core_read_finished_cb, | ||
1193 | queue); | ||
1194 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1195 | "passed to core\n"); | ||
1196 | if (GNUNET_OK == ret) | ||
1197 | queue->backpressure++; | ||
1198 | GNUNET_break (GNUNET_NO != ret); /* backpressure not working!? */ | ||
1199 | if (GNUNET_SYSERR == ret) | ||
1200 | GNUNET_STATISTICS_update (stats, | ||
1201 | "# bytes lost due to CORE not running", | ||
1202 | plaintext_len, | ||
1203 | GNUNET_NO); | ||
1204 | } | ||
1205 | |||
1206 | |||
1207 | /** | ||
1208 | * Setup @a cipher based on shared secret @a dh and decrypting | ||
1209 | * peer @a pid. | ||
1210 | * | ||
1211 | * @param dh shared secret | ||
1212 | * @param pid decrypting peer's identity | ||
1213 | * @param[out] cipher cipher to initialize | ||
1214 | * @param[out] hmac_key HMAC key to initialize | ||
1215 | */ | ||
1216 | static void | ||
1217 | setup_cipher (const struct GNUNET_HashCode *dh, | ||
1218 | const struct GNUNET_PeerIdentity *pid, | ||
1219 | gcry_cipher_hd_t *cipher, | ||
1220 | struct GNUNET_HashCode *hmac_key) | ||
1221 | { | ||
1222 | char key[256 / 8]; | ||
1223 | char ctr[128 / 8]; | ||
1224 | |||
1225 | GNUNET_assert (0 == gcry_cipher_open (cipher, | ||
1226 | GCRY_CIPHER_AES256 /* low level: go for speed */ | ||
1227 | , | ||
1228 | GCRY_CIPHER_MODE_CTR, | ||
1229 | 0 /* flags */)); | ||
1230 | GNUNET_assert (GNUNET_YES == GNUNET_CRYPTO_kdf (key, | ||
1231 | sizeof(key), | ||
1232 | "TCP-key", | ||
1233 | strlen ("TCP-key"), | ||
1234 | dh, | ||
1235 | sizeof(*dh), | ||
1236 | pid, | ||
1237 | sizeof(*pid), | ||
1238 | NULL, | ||
1239 | 0)); | ||
1240 | GNUNET_assert (0 == gcry_cipher_setkey (*cipher, key, sizeof(key))); | ||
1241 | GNUNET_assert (GNUNET_YES == GNUNET_CRYPTO_kdf (ctr, | ||
1242 | sizeof(ctr), | ||
1243 | "TCP-ctr", | ||
1244 | strlen ("TCP-ctr"), | ||
1245 | dh, | ||
1246 | sizeof(*dh), | ||
1247 | pid, | ||
1248 | sizeof(*pid), | ||
1249 | NULL, | ||
1250 | 0)); | ||
1251 | gcry_cipher_setctr (*cipher, ctr, sizeof(ctr)); | ||
1252 | GNUNET_assert (GNUNET_YES == | ||
1253 | GNUNET_CRYPTO_kdf (hmac_key, | ||
1254 | sizeof(struct GNUNET_HashCode), | ||
1255 | "TCP-hmac", | ||
1256 | strlen ("TCP-hmac"), | ||
1257 | dh, | ||
1258 | sizeof(*dh), | ||
1259 | pid, | ||
1260 | sizeof(*pid), | ||
1261 | NULL, | ||
1262 | 0)); | ||
1263 | } | ||
1264 | |||
1265 | |||
1266 | /** | ||
1267 | * Callback called when peerstore store operation for rekey monotime value is finished. | ||
1268 | * @param cls Queue context the store operation was executed. | ||
1269 | * @param success Store operation was successful (GNUNET_OK) or not. | ||
1270 | */ | ||
1271 | static void | ||
1272 | rekey_monotime_store_cb (void *cls, int success) | ||
1273 | { | ||
1274 | struct Queue *queue = cls; | ||
1275 | if (GNUNET_OK != success) | ||
1276 | { | ||
1277 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1278 | "Failed to store rekey monotonic time in PEERSTORE!\n"); | ||
1279 | } | ||
1280 | queue->rekey_monotime_sc = NULL; | ||
1281 | GNUNET_PEERSTORE_iteration_next (queue->rekey_monotime_get, 1); | ||
1282 | } | ||
1283 | |||
1284 | |||
1285 | /** | ||
1286 | * Callback called by peerstore when records for GNUNET_PEERSTORE_TRANSPORT_TCP_COMMUNICATOR_REKEY | ||
1287 | * where found. | ||
1288 | * @param cls Queue context the store operation was executed. | ||
1289 | * @param record The record found or NULL if there is no record left. | ||
1290 | * @param emsg Message from peerstore. | ||
1291 | */ | ||
1292 | static void | ||
1293 | rekey_monotime_cb (void *cls, | ||
1294 | const struct GNUNET_PEERSTORE_Record *record, | ||
1295 | const char *emsg) | ||
1296 | { | ||
1297 | struct Queue *queue = cls; | ||
1298 | struct GNUNET_TIME_AbsoluteNBO *mtbe; | ||
1299 | struct GNUNET_TIME_Absolute mt; | ||
1300 | const struct GNUNET_PeerIdentity *pid; | ||
1301 | struct GNUNET_TIME_AbsoluteNBO *rekey_monotonic_time; | ||
1302 | |||
1303 | (void) emsg; | ||
1304 | |||
1305 | rekey_monotonic_time = &queue->rekey_monotonic_time; | ||
1306 | pid = &queue->target; | ||
1307 | if (NULL == record) | ||
1308 | { | ||
1309 | queue->rekey_monotime_get = NULL; | ||
1310 | return; | ||
1311 | } | ||
1312 | if (sizeof(*mtbe) != record->value_size) | ||
1313 | { | ||
1314 | GNUNET_PEERSTORE_iteration_next (queue->rekey_monotime_get, 1); | ||
1315 | GNUNET_break (0); | ||
1316 | return; | ||
1317 | } | ||
1318 | mtbe = record->value; | ||
1319 | mt = GNUNET_TIME_absolute_ntoh (*mtbe); | ||
1320 | if (mt.abs_value_us > GNUNET_TIME_absolute_ntoh ( | ||
1321 | queue->rekey_monotonic_time).abs_value_us) | ||
1322 | { | ||
1323 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1324 | "Queue from %s dropped, rekey monotime in the past\n", | ||
1325 | GNUNET_i2s (&queue->target)); | ||
1326 | GNUNET_break (0); | ||
1327 | GNUNET_PEERSTORE_iteration_stop (queue->rekey_monotime_get); | ||
1328 | queue->rekey_monotime_get = NULL; | ||
1329 | // FIXME: Why should we try to gracefully finish here?? | ||
1330 | queue_finish (queue); | ||
1331 | return; | ||
1332 | } | ||
1333 | queue->rekey_monotime_sc = GNUNET_PEERSTORE_store (peerstore, | ||
1334 | "transport_tcp_communicator", | ||
1335 | pid, | ||
1336 | GNUNET_PEERSTORE_TRANSPORT_TCP_COMMUNICATOR_REKEY, | ||
1337 | rekey_monotonic_time, | ||
1338 | sizeof(* | ||
1339 | rekey_monotonic_time), | ||
1340 | GNUNET_TIME_UNIT_FOREVER_ABS, | ||
1341 | GNUNET_PEERSTORE_STOREOPTION_REPLACE, | ||
1342 | &rekey_monotime_store_cb, | ||
1343 | queue); | ||
1344 | } | ||
1345 | |||
1346 | |||
1347 | /** | ||
1348 | * Setup cipher of @a queue for decryption. | ||
1349 | * | ||
1350 | * @param ephemeral ephemeral key we received from the other peer | ||
1351 | * @param[in,out] queue queue to initialize decryption cipher for | ||
1352 | */ | ||
1353 | static void | ||
1354 | setup_in_cipher (const struct GNUNET_CRYPTO_EcdhePublicKey *ephemeral, | ||
1355 | struct Queue *queue) | ||
1356 | { | ||
1357 | struct GNUNET_HashCode k; | ||
1358 | |||
1359 | GNUNET_CRYPTO_eddsa_kem_decaps (my_private_key, ephemeral, &k); | ||
1360 | setup_cipher (&k, &my_identity, &queue->in_cipher, &queue->in_hmac); | ||
1361 | } | ||
1362 | |||
1363 | |||
1364 | /** | ||
1365 | * Handle @a rekey message on @a queue. The message was already | ||
1366 | * HMAC'ed, but we should additionally still check the signature. | ||
1367 | * Then we need to stop the old cipher and start afresh. | ||
1368 | * | ||
1369 | * @param queue the queue @a rekey was received on | ||
1370 | * @param rekey the rekey message | ||
1371 | */ | ||
1372 | static void | ||
1373 | do_rekey (struct Queue *queue, const struct TCPRekey *rekey) | ||
1374 | { | ||
1375 | struct TcpRekeySignature thp; | ||
1376 | |||
1377 | thp.purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_TCP_REKEY); | ||
1378 | thp.purpose.size = htonl (sizeof(thp)); | ||
1379 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1380 | "do_rekey size %u\n", | ||
1381 | thp.purpose.size); | ||
1382 | thp.sender = queue->target; | ||
1383 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1384 | "sender %s\n", | ||
1385 | GNUNET_p2s (&thp.sender.public_key)); | ||
1386 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1387 | "sender %s\n", | ||
1388 | GNUNET_p2s (&queue->target.public_key)); | ||
1389 | thp.receiver = my_identity; | ||
1390 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1391 | "receiver %s\n", | ||
1392 | GNUNET_p2s (&thp.receiver.public_key)); | ||
1393 | thp.ephemeral = rekey->ephemeral; | ||
1394 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1395 | "ephemeral %s\n", | ||
1396 | GNUNET_e2s (&thp.ephemeral)); | ||
1397 | thp.monotonic_time = rekey->monotonic_time; | ||
1398 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1399 | "time %s\n", | ||
1400 | GNUNET_STRINGS_absolute_time_to_string ( | ||
1401 | GNUNET_TIME_absolute_ntoh (thp.monotonic_time))); | ||
1402 | GNUNET_assert (ntohl ((&thp)->purpose.size) == sizeof (*(&thp))); | ||
1403 | if (GNUNET_OK != | ||
1404 | GNUNET_CRYPTO_eddsa_verify ( | ||
1405 | GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_TCP_REKEY, | ||
1406 | &thp, | ||
1407 | &rekey->sender_sig, | ||
1408 | &queue->target.public_key)) | ||
1409 | { | ||
1410 | GNUNET_break (0); | ||
1411 | // FIXME Why should we try to gracefully finish here? | ||
1412 | queue_finish (queue); | ||
1413 | return; | ||
1414 | } | ||
1415 | queue->rekey_monotonic_time = rekey->monotonic_time; | ||
1416 | queue->rekey_monotime_get = GNUNET_PEERSTORE_iteration_start (peerstore, | ||
1417 | "transport_tcp_communicator", | ||
1418 | &queue->target, | ||
1419 | GNUNET_PEERSTORE_TRANSPORT_TCP_COMMUNICATOR_REKEY, | ||
1420 | & | ||
1421 | rekey_monotime_cb, | ||
1422 | queue); | ||
1423 | gcry_cipher_close (queue->in_cipher); | ||
1424 | queue->rekeyed = GNUNET_YES; | ||
1425 | setup_in_cipher (&rekey->ephemeral, queue); | ||
1426 | } | ||
1427 | |||
1428 | |||
1429 | /** | ||
1430 | * Callback called when peerstore store operation for handshake ack monotime value is finished. | ||
1431 | * @param cls Queue context the store operation was executed. | ||
1432 | * @param success Store operation was successful (GNUNET_OK) or not. | ||
1433 | */ | ||
1434 | static void | ||
1435 | handshake_ack_monotime_store_cb (void *cls, int success) | ||
1436 | { | ||
1437 | struct Queue *queue = cls; | ||
1438 | |||
1439 | if (GNUNET_OK != success) | ||
1440 | { | ||
1441 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1442 | "Failed to store handshake ack monotonic time in PEERSTORE!\n"); | ||
1443 | } | ||
1444 | queue->handshake_ack_monotime_sc = NULL; | ||
1445 | GNUNET_PEERSTORE_iteration_next (queue->handshake_ack_monotime_get, 1); | ||
1446 | } | ||
1447 | |||
1448 | |||
1449 | /** | ||
1450 | * Callback called by peerstore when records for GNUNET_PEERSTORE_TRANSPORT_TCP_COMMUNICATOR_HANDSHAKE_ACK | ||
1451 | * where found. | ||
1452 | * @param cls Queue context the store operation was executed. | ||
1453 | * @param record The record found or NULL if there is no record left. | ||
1454 | * @param emsg Message from peerstore. | ||
1455 | */ | ||
1456 | static void | ||
1457 | handshake_ack_monotime_cb (void *cls, | ||
1458 | const struct GNUNET_PEERSTORE_Record *record, | ||
1459 | const char *emsg) | ||
1460 | { | ||
1461 | struct Queue *queue = cls; | ||
1462 | struct GNUNET_TIME_AbsoluteNBO *mtbe; | ||
1463 | struct GNUNET_TIME_Absolute mt; | ||
1464 | const struct GNUNET_PeerIdentity *pid; | ||
1465 | struct GNUNET_TIME_AbsoluteNBO *handshake_ack_monotonic_time; | ||
1466 | |||
1467 | (void) emsg; | ||
1468 | |||
1469 | handshake_ack_monotonic_time = &queue->handshake_ack_monotonic_time; | ||
1470 | pid = &queue->target; | ||
1471 | if (NULL == record) | ||
1472 | { | ||
1473 | queue->handshake_ack_monotime_get = NULL; | ||
1474 | return; | ||
1475 | } | ||
1476 | if (sizeof(*mtbe) != record->value_size) | ||
1477 | { | ||
1478 | GNUNET_PEERSTORE_iteration_next (queue->handshake_ack_monotime_get, 1); | ||
1479 | GNUNET_break (0); | ||
1480 | return; | ||
1481 | } | ||
1482 | mtbe = record->value; | ||
1483 | mt = GNUNET_TIME_absolute_ntoh (*mtbe); | ||
1484 | if (mt.abs_value_us > GNUNET_TIME_absolute_ntoh ( | ||
1485 | queue->handshake_ack_monotonic_time).abs_value_us) | ||
1486 | { | ||
1487 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1488 | "Queue from %s dropped, handshake ack monotime in the past\n", | ||
1489 | GNUNET_i2s (&queue->target)); | ||
1490 | GNUNET_break (0); | ||
1491 | GNUNET_PEERSTORE_iteration_stop (queue->handshake_ack_monotime_get); | ||
1492 | queue->handshake_ack_monotime_get = NULL; | ||
1493 | // FIXME: Why should we try to gracefully finish here? | ||
1494 | queue_finish (queue); | ||
1495 | return; | ||
1496 | } | ||
1497 | queue->handshake_ack_monotime_sc = | ||
1498 | GNUNET_PEERSTORE_store (peerstore, | ||
1499 | "transport_tcp_communicator", | ||
1500 | pid, | ||
1501 | GNUNET_PEERSTORE_TRANSPORT_TCP_COMMUNICATOR_HANDSHAKE_ACK, | ||
1502 | handshake_ack_monotonic_time, | ||
1503 | sizeof(*handshake_ack_monotonic_time), | ||
1504 | GNUNET_TIME_UNIT_FOREVER_ABS, | ||
1505 | GNUNET_PEERSTORE_STOREOPTION_REPLACE, | ||
1506 | &handshake_ack_monotime_store_cb, | ||
1507 | queue); | ||
1508 | } | ||
1509 | |||
1510 | |||
1511 | /** | ||
1512 | * Sending challenge with TcpConfirmationAck back to sender of ephemeral key. | ||
1513 | * | ||
1514 | * @param tc The TCPConfirmation originally send. | ||
1515 | * @param queue The queue context. | ||
1516 | */ | ||
1517 | static void | ||
1518 | send_challenge (struct GNUNET_CRYPTO_ChallengeNonceP challenge, | ||
1519 | struct Queue *queue) | ||
1520 | { | ||
1521 | struct TCPConfirmationAck tca; | ||
1522 | struct TcpHandshakeAckSignature thas; | ||
1523 | |||
1524 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1525 | "sending challenge\n"); | ||
1526 | |||
1527 | tca.header.type = ntohs ( | ||
1528 | GNUNET_MESSAGE_TYPE_COMMUNICATOR_TCP_CONFIRMATION_ACK); | ||
1529 | tca.header.size = ntohs (sizeof(tca)); | ||
1530 | tca.challenge = challenge; | ||
1531 | tca.sender = my_identity; | ||
1532 | tca.monotonic_time = | ||
1533 | GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get_monotonic (cfg)); | ||
1534 | thas.purpose.purpose = htonl ( | ||
1535 | GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_TCP_HANDSHAKE_ACK); | ||
1536 | thas.purpose.size = htonl (sizeof(thas)); | ||
1537 | thas.sender = my_identity; | ||
1538 | thas.receiver = queue->target; | ||
1539 | thas.monotonic_time = tca.monotonic_time; | ||
1540 | thas.challenge = tca.challenge; | ||
1541 | GNUNET_CRYPTO_eddsa_sign (my_private_key, | ||
1542 | &thas, | ||
1543 | &tca.sender_sig); | ||
1544 | GNUNET_assert (0 == | ||
1545 | gcry_cipher_encrypt (queue->out_cipher, | ||
1546 | &queue->cwrite_buf[queue->cwrite_off], | ||
1547 | sizeof(tca), | ||
1548 | &tca, | ||
1549 | sizeof(tca))); | ||
1550 | queue->cwrite_off += sizeof(tca); | ||
1551 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1552 | "sending challenge done\n"); | ||
1553 | } | ||
1554 | |||
1555 | |||
1556 | /** | ||
1557 | * Setup cipher for outgoing data stream based on target and | ||
1558 | * our ephemeral private key. | ||
1559 | * | ||
1560 | * @param queue queue to setup outgoing (encryption) cipher for | ||
1561 | */ | ||
1562 | static void | ||
1563 | setup_out_cipher (struct Queue *queue, struct GNUNET_HashCode *dh) | ||
1564 | { | ||
1565 | setup_cipher (dh, &queue->target, &queue->out_cipher, &queue->out_hmac); | ||
1566 | queue->rekey_time = GNUNET_TIME_relative_to_absolute (rekey_interval); | ||
1567 | queue->rekey_left_bytes = | ||
1568 | GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK, rekey_max_bytes); | ||
1569 | } | ||
1570 | |||
1571 | |||
1572 | /** | ||
1573 | * Inject a `struct TCPRekey` message into the queue's plaintext | ||
1574 | * buffer. | ||
1575 | * | ||
1576 | * @param queue queue to perform rekeying on | ||
1577 | */ | ||
1578 | static void | ||
1579 | inject_rekey (struct Queue *queue) | ||
1580 | { | ||
1581 | struct TCPRekey rekey; | ||
1582 | struct TcpRekeySignature thp; | ||
1583 | struct GNUNET_HashCode k; | ||
1584 | |||
1585 | GNUNET_assert (0 == queue->pwrite_off); | ||
1586 | memset (&rekey, 0, sizeof(rekey)); | ||
1587 | GNUNET_CRYPTO_eddsa_kem_encaps (&queue->target.public_key, &rekey.ephemeral, | ||
1588 | &k); | ||
1589 | rekey.header.type = ntohs (GNUNET_MESSAGE_TYPE_COMMUNICATOR_TCP_REKEY); | ||
1590 | rekey.header.size = ntohs (sizeof(rekey)); | ||
1591 | rekey.monotonic_time = | ||
1592 | GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get_monotonic (cfg)); | ||
1593 | thp.purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_TCP_REKEY); | ||
1594 | thp.purpose.size = htonl (sizeof(thp)); | ||
1595 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1596 | "inject_rekey size %u\n", | ||
1597 | thp.purpose.size); | ||
1598 | thp.sender = my_identity; | ||
1599 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1600 | "sender %s\n", | ||
1601 | GNUNET_p2s (&thp.sender.public_key)); | ||
1602 | thp.receiver = queue->target; | ||
1603 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1604 | "receiver %s\n", | ||
1605 | GNUNET_p2s (&thp.receiver.public_key)); | ||
1606 | thp.ephemeral = rekey.ephemeral; | ||
1607 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1608 | "ephemeral %s\n", | ||
1609 | GNUNET_e2s (&thp.ephemeral)); | ||
1610 | thp.monotonic_time = rekey.monotonic_time; | ||
1611 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1612 | "time %s\n", | ||
1613 | GNUNET_STRINGS_absolute_time_to_string ( | ||
1614 | GNUNET_TIME_absolute_ntoh (thp.monotonic_time))); | ||
1615 | GNUNET_CRYPTO_eddsa_sign (my_private_key, | ||
1616 | &thp, | ||
1617 | &rekey.sender_sig); | ||
1618 | calculate_hmac (&queue->out_hmac, &rekey, sizeof(rekey), &rekey.hmac); | ||
1619 | /* Encrypt rekey message with 'old' cipher */ | ||
1620 | GNUNET_assert (0 == | ||
1621 | gcry_cipher_encrypt (queue->out_cipher, | ||
1622 | &queue->cwrite_buf[queue->cwrite_off], | ||
1623 | sizeof(rekey), | ||
1624 | &rekey, | ||
1625 | sizeof(rekey))); | ||
1626 | queue->cwrite_off += sizeof(rekey); | ||
1627 | /* Setup new cipher for successive messages */ | ||
1628 | gcry_cipher_close (queue->out_cipher); | ||
1629 | setup_out_cipher (queue, &k); | ||
1630 | } | ||
1631 | |||
1632 | |||
1633 | static int | ||
1634 | pending_reversals_delete_it (void *cls, | ||
1635 | const struct GNUNET_HashCode *key, | ||
1636 | void *value) | ||
1637 | { | ||
1638 | (void) cls; | ||
1639 | struct PendingReversal *pending_reversal = value; | ||
1640 | |||
1641 | if (NULL != pending_reversal->timeout_task) | ||
1642 | { | ||
1643 | GNUNET_SCHEDULER_cancel (pending_reversal->timeout_task); | ||
1644 | pending_reversal->timeout_task = NULL; | ||
1645 | } | ||
1646 | GNUNET_assert (GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove ( | ||
1647 | pending_reversals, | ||
1648 | key, | ||
1649 | pending_reversal)); | ||
1650 | GNUNET_free (pending_reversal->in); | ||
1651 | GNUNET_free (pending_reversal); | ||
1652 | return GNUNET_OK; | ||
1653 | } | ||
1654 | |||
1655 | |||
1656 | static void | ||
1657 | check_and_remove_pending_reversal (struct sockaddr *in, sa_family_t sa_family, | ||
1658 | struct GNUNET_PeerIdentity *sender) | ||
1659 | { | ||
1660 | if (AF_INET == sa_family) | ||
1661 | { | ||
1662 | struct PendingReversal *pending_reversal; | ||
1663 | struct GNUNET_HashCode key; | ||
1664 | struct sockaddr_in *natted_address; | ||
1665 | |||
1666 | natted_address = GNUNET_memdup (in, sizeof (struct sockaddr)); | ||
1667 | natted_address->sin_port = 0; | ||
1668 | GNUNET_CRYPTO_hash (natted_address, | ||
1669 | sizeof(struct sockaddr), | ||
1670 | &key); | ||
1671 | |||
1672 | pending_reversal = GNUNET_CONTAINER_multihashmap_get (pending_reversals, | ||
1673 | &key); | ||
1674 | if (NULL != pending_reversal && (NULL == sender || | ||
1675 | 0 != memcmp (sender, | ||
1676 | &pending_reversal->target, | ||
1677 | sizeof(struct | ||
1678 | GNUNET_PeerIdentity)))) | ||
1679 | { | ||
1680 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
1681 | "Removing invalid pending reversal for `%s'at `%s'\n", | ||
1682 | GNUNET_i2s (&pending_reversal->target), | ||
1683 | GNUNET_a2s (in, sizeof (struct sockaddr))); | ||
1684 | pending_reversals_delete_it (NULL, &key, pending_reversal); | ||
1685 | } | ||
1686 | GNUNET_free (natted_address); | ||
1687 | } | ||
1688 | } | ||
1689 | |||
1690 | |||
1691 | /** | ||
1692 | * Closes socket and frees memory associated with @a pq. | ||
1693 | * | ||
1694 | * @param pq proto queue to free | ||
1695 | */ | ||
1696 | static void | ||
1697 | free_proto_queue (struct ProtoQueue *pq) | ||
1698 | { | ||
1699 | if (NULL != pq->listen_sock) | ||
1700 | { | ||
1701 | GNUNET_break (GNUNET_OK == GNUNET_NETWORK_socket_close (pq->listen_sock)); | ||
1702 | pq->listen_sock = NULL; | ||
1703 | } | ||
1704 | if (NULL != pq->read_task) | ||
1705 | { | ||
1706 | GNUNET_SCHEDULER_cancel (pq->read_task); | ||
1707 | pq->read_task = NULL; | ||
1708 | } | ||
1709 | if (NULL != pq->write_task) | ||
1710 | { | ||
1711 | GNUNET_SCHEDULER_cancel (pq->write_task); | ||
1712 | pq->write_task = NULL; | ||
1713 | } | ||
1714 | check_and_remove_pending_reversal (pq->address, pq->address->sa_family, NULL); | ||
1715 | GNUNET_NETWORK_socket_close (pq->sock); | ||
1716 | GNUNET_free (pq->address); | ||
1717 | GNUNET_CONTAINER_DLL_remove (proto_head, proto_tail, pq); | ||
1718 | GNUNET_free (pq); | ||
1719 | } | ||
1720 | |||
1721 | |||
1722 | /** | ||
1723 | * We have been notified that our socket is ready to write. | ||
1724 | * Then reschedule this function to be called again once more is available. | ||
1725 | * | ||
1726 | * @param cls a `struct ProtoQueue` | ||
1727 | */ | ||
1728 | static void | ||
1729 | proto_queue_write (void *cls) | ||
1730 | { | ||
1731 | struct ProtoQueue *pq = cls; | ||
1732 | ssize_t sent; | ||
1733 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "In proto queue write\n"); | ||
1734 | pq->write_task = NULL; | ||
1735 | if (0 != pq->write_off) | ||
1736 | { | ||
1737 | sent = GNUNET_NETWORK_socket_send (pq->sock, | ||
1738 | pq->write_buf, | ||
1739 | pq->write_off); | ||
1740 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1741 | "Sent %lu bytes to TCP queue\n", sent); | ||
1742 | if ((-1 == sent) && (EAGAIN != errno) && (EINTR != errno)) | ||
1743 | { | ||
1744 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "send"); | ||
1745 | free_proto_queue (pq); | ||
1746 | return; | ||
1747 | } | ||
1748 | if (sent > 0) | ||
1749 | { | ||
1750 | size_t usent = (size_t) sent; | ||
1751 | pq->write_off -= usent; | ||
1752 | memmove (pq->write_buf, | ||
1753 | &pq->write_buf[usent], | ||
1754 | pq->write_off); | ||
1755 | } | ||
1756 | } | ||
1757 | /* do we care to write more? */ | ||
1758 | if ((0 < pq->write_off)) | ||
1759 | pq->write_task = | ||
1760 | GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
1761 | pq->sock, | ||
1762 | &proto_queue_write, | ||
1763 | pq); | ||
1764 | } | ||
1765 | |||
1766 | |||
1767 | /** | ||
1768 | * We have been notified that our socket is ready to write. | ||
1769 | * Then reschedule this function to be called again once more is available. | ||
1770 | * | ||
1771 | * @param cls a `struct Queue` | ||
1772 | */ | ||
1773 | static void | ||
1774 | queue_write (void *cls) | ||
1775 | { | ||
1776 | struct Queue *queue = cls; | ||
1777 | ssize_t sent; | ||
1778 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "In queue write\n"); | ||
1779 | queue->write_task = NULL; | ||
1780 | if (0 != queue->cwrite_off) | ||
1781 | { | ||
1782 | sent = GNUNET_NETWORK_socket_send (queue->sock, | ||
1783 | queue->cwrite_buf, | ||
1784 | queue->cwrite_off); | ||
1785 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1786 | "Sent %lu bytes to TCP queue\n", sent); | ||
1787 | if ((-1 == sent) && (EAGAIN != errno) && (EINTR != errno)) | ||
1788 | { | ||
1789 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "send"); | ||
1790 | queue_destroy (queue); | ||
1791 | return; | ||
1792 | } | ||
1793 | if (sent > 0) | ||
1794 | { | ||
1795 | size_t usent = (size_t) sent; | ||
1796 | queue->cwrite_off -= usent; | ||
1797 | memmove (queue->cwrite_buf, | ||
1798 | &queue->cwrite_buf[usent], | ||
1799 | queue->cwrite_off); | ||
1800 | queue->timeout = | ||
1801 | GNUNET_TIME_relative_to_absolute ( | ||
1802 | GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT); | ||
1803 | } | ||
1804 | } | ||
1805 | /* can we encrypt more? (always encrypt full messages, needed | ||
1806 | such that #mq_cancel() can work!) */ | ||
1807 | unsigned int we_do_not_need_to_rekey = (0 < queue->rekey_left_bytes | ||
1808 | - (queue->cwrite_off | ||
1809 | + queue->pwrite_off | ||
1810 | + sizeof (struct TCPRekey))); | ||
1811 | if (we_do_not_need_to_rekey && | ||
1812 | (queue->pwrite_off > 0) && | ||
1813 | (queue->cwrite_off + queue->pwrite_off <= BUF_SIZE)) | ||
1814 | { | ||
1815 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1816 | "Encrypting %lu bytes\n", queue->pwrite_off); | ||
1817 | GNUNET_assert (0 == | ||
1818 | gcry_cipher_encrypt (queue->out_cipher, | ||
1819 | &queue->cwrite_buf[queue->cwrite_off], | ||
1820 | queue->pwrite_off, | ||
1821 | queue->pwrite_buf, | ||
1822 | queue->pwrite_off)); | ||
1823 | if (queue->rekey_left_bytes > queue->pwrite_off) | ||
1824 | queue->rekey_left_bytes -= queue->pwrite_off; | ||
1825 | else | ||
1826 | queue->rekey_left_bytes = 0; | ||
1827 | queue->cwrite_off += queue->pwrite_off; | ||
1828 | queue->pwrite_off = 0; | ||
1829 | } | ||
1830 | // if ((-1 != unverified_size)&& ((0 == queue->pwrite_off) && | ||
1831 | if (((0 == queue->rekey_left_bytes) || | ||
1832 | (0 == GNUNET_TIME_absolute_get_remaining ( | ||
1833 | queue->rekey_time).rel_value_us)) && | ||
1834 | (((0 == queue->pwrite_off) || ! we_do_not_need_to_rekey) && | ||
1835 | (queue->cwrite_off + sizeof (struct TCPRekey) <= BUF_SIZE))) | ||
1836 | { | ||
1837 | inject_rekey (queue); | ||
1838 | } | ||
1839 | if ((0 == queue->pwrite_off) && (! queue->finishing) && | ||
1840 | (GNUNET_YES == queue->mq_awaits_continue)) | ||
1841 | { | ||
1842 | queue->mq_awaits_continue = GNUNET_NO; | ||
1843 | GNUNET_MQ_impl_send_continue (queue->mq); | ||
1844 | } | ||
1845 | /* did we just finish writing 'finish'? */ | ||
1846 | if ((0 == queue->cwrite_off) && (GNUNET_YES == queue->finishing)) | ||
1847 | { | ||
1848 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1849 | "Finishing queue\n"); | ||
1850 | queue_destroy (queue); | ||
1851 | return; | ||
1852 | } | ||
1853 | /* do we care to write more? */ | ||
1854 | if ((0 < queue->cwrite_off) || (0 < queue->pwrite_off)) | ||
1855 | queue->write_task = | ||
1856 | GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
1857 | queue->sock, | ||
1858 | &queue_write, | ||
1859 | queue); | ||
1860 | } | ||
1861 | |||
1862 | |||
1863 | /** | ||
1864 | * Test if we have received a full message in plaintext. | ||
1865 | * If so, handle it. | ||
1866 | * | ||
1867 | * @param queue queue to process inbound plaintext for | ||
1868 | * @return number of bytes of plaintext handled, 0 for none | ||
1869 | */ | ||
1870 | static size_t | ||
1871 | try_handle_plaintext (struct Queue *queue) | ||
1872 | { | ||
1873 | const struct GNUNET_MessageHeader *hdr; | ||
1874 | const struct TCPConfirmationAck *tca; | ||
1875 | const struct TCPBox *box; | ||
1876 | const struct TCPRekey *rekey; | ||
1877 | const struct TCPFinish *fin; | ||
1878 | struct TCPRekey rekeyz; | ||
1879 | struct TCPFinish finz; | ||
1880 | struct GNUNET_ShortHashCode tmac; | ||
1881 | uint16_t type; | ||
1882 | size_t size = 0; | ||
1883 | struct TcpHandshakeAckSignature thas; | ||
1884 | const struct GNUNET_CRYPTO_ChallengeNonceP challenge = queue->challenge; | ||
1885 | |||
1886 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1887 | "try handle plaintext!\n"); | ||
1888 | |||
1889 | hdr = (const struct GNUNET_MessageHeader *) queue->pread_buf; | ||
1890 | if ((sizeof(*hdr) > queue->pread_off)) | ||
1891 | { | ||
1892 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1893 | "Handling plaintext, not even a header!\n"); | ||
1894 | return 0; /* not even a header */ | ||
1895 | } | ||
1896 | |||
1897 | if ((GNUNET_YES != queue->initial_core_kx_done) && (queue->unverified_size > | ||
1898 | INITIAL_CORE_KX_SIZE)) | ||
1899 | { | ||
1900 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1901 | "Already received data of size %lu bigger than KX size %lu!\n", | ||
1902 | queue->unverified_size, | ||
1903 | INITIAL_CORE_KX_SIZE); | ||
1904 | GNUNET_break_op (0); | ||
1905 | queue_finish (queue); | ||
1906 | return 0; | ||
1907 | } | ||
1908 | |||
1909 | type = ntohs (hdr->type); | ||
1910 | switch (type) | ||
1911 | { | ||
1912 | case GNUNET_MESSAGE_TYPE_COMMUNICATOR_TCP_CONFIRMATION_ACK: | ||
1913 | tca = (const struct TCPConfirmationAck *) queue->pread_buf; | ||
1914 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1915 | "start processing ack\n"); | ||
1916 | if (sizeof(*tca) > queue->pread_off) | ||
1917 | { | ||
1918 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1919 | "Handling plaintext size of tca greater than pread offset.\n") | ||
1920 | ; | ||
1921 | return 0; | ||
1922 | } | ||
1923 | if (ntohs (hdr->size) != sizeof(*tca)) | ||
1924 | { | ||
1925 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1926 | "Handling plaintext size does not match message type.\n"); | ||
1927 | GNUNET_break_op (0); | ||
1928 | queue_finish (queue); | ||
1929 | return 0; | ||
1930 | } | ||
1931 | |||
1932 | thas.purpose.purpose = htonl ( | ||
1933 | GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_TCP_HANDSHAKE_ACK); | ||
1934 | thas.purpose.size = htonl (sizeof(thas)); | ||
1935 | thas.sender = tca->sender; | ||
1936 | thas.receiver = my_identity; | ||
1937 | thas.monotonic_time = tca->monotonic_time; | ||
1938 | thas.challenge = tca->challenge; | ||
1939 | |||
1940 | if (GNUNET_SYSERR == GNUNET_CRYPTO_eddsa_verify ( | ||
1941 | GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_TCP_HANDSHAKE_ACK, | ||
1942 | &thas, | ||
1943 | &tca->sender_sig, | ||
1944 | &tca->sender.public_key)) | ||
1945 | { | ||
1946 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1947 | "Verification of signature failed!\n"); | ||
1948 | GNUNET_break (0); | ||
1949 | queue_finish (queue); | ||
1950 | return 0; | ||
1951 | } | ||
1952 | if (0 != GNUNET_memcmp (&tca->challenge, &challenge)) | ||
1953 | { | ||
1954 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1955 | "Challenge in TCPConfirmationAck not correct!\n"); | ||
1956 | GNUNET_break (0); | ||
1957 | queue_finish (queue); | ||
1958 | return 0; | ||
1959 | } | ||
1960 | |||
1961 | queue->handshake_ack_monotime_get = GNUNET_PEERSTORE_iteration_start ( | ||
1962 | peerstore, | ||
1963 | "transport_tcp_communicator", | ||
1964 | &queue->target, | ||
1965 | GNUNET_PEERSTORE_TRANSPORT_TCP_COMMUNICATOR_HANDSHAKE_ACK, | ||
1966 | &handshake_ack_monotime_cb, | ||
1967 | queue); | ||
1968 | |||
1969 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1970 | "Handling plaintext, ack processed!\n"); | ||
1971 | |||
1972 | if (GNUNET_TRANSPORT_CS_INBOUND == queue->cs) | ||
1973 | { | ||
1974 | send_challenge (queue->challenge_received, queue); | ||
1975 | queue->write_task = | ||
1976 | GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
1977 | queue->sock, | ||
1978 | &queue_write, | ||
1979 | queue); | ||
1980 | } | ||
1981 | else if (GNUNET_TRANSPORT_CS_OUTBOUND == queue->cs) | ||
1982 | { | ||
1983 | check_and_remove_pending_reversal (queue->address, | ||
1984 | queue->address->sa_family, NULL); | ||
1985 | } | ||
1986 | |||
1987 | /** | ||
1988 | * Once we received this ack, we consider this a verified connection. | ||
1989 | * FIXME: I am not sure this logic is sane here. | ||
1990 | */ | ||
1991 | queue->initial_core_kx_done = GNUNET_YES; | ||
1992 | |||
1993 | char *foreign_addr; | ||
1994 | |||
1995 | switch (queue->address->sa_family) | ||
1996 | { | ||
1997 | case AF_INET: | ||
1998 | GNUNET_asprintf (&foreign_addr, | ||
1999 | "%s-%s", | ||
2000 | COMMUNICATOR_ADDRESS_PREFIX, | ||
2001 | GNUNET_a2s (queue->address, queue->address_len)); | ||
2002 | break; | ||
2003 | |||
2004 | case AF_INET6: | ||
2005 | GNUNET_asprintf (&foreign_addr, | ||
2006 | "%s-%s", | ||
2007 | COMMUNICATOR_ADDRESS_PREFIX, | ||
2008 | GNUNET_a2s (queue->address, queue->address_len)); | ||
2009 | break; | ||
2010 | |||
2011 | default: | ||
2012 | GNUNET_assert (0); | ||
2013 | } | ||
2014 | |||
2015 | queue->qh = GNUNET_TRANSPORT_communicator_mq_add (ch, | ||
2016 | &queue->target, | ||
2017 | foreign_addr, | ||
2018 | UINT16_MAX, /* no MTU */ | ||
2019 | GNUNET_TRANSPORT_QUEUE_LENGTH_UNLIMITED, | ||
2020 | 0, /* Priority */ | ||
2021 | queue->nt, | ||
2022 | queue->cs, | ||
2023 | queue->mq); | ||
2024 | |||
2025 | GNUNET_free (foreign_addr); | ||
2026 | |||
2027 | size = ntohs (hdr->size); | ||
2028 | break; | ||
2029 | case GNUNET_MESSAGE_TYPE_COMMUNICATOR_TCP_BOX: | ||
2030 | /* Special case: header size excludes box itself! */ | ||
2031 | box = (const struct TCPBox *) queue->pread_buf; | ||
2032 | if (ntohs (hdr->size) + sizeof(struct TCPBox) > queue->pread_off) | ||
2033 | return 0; | ||
2034 | calculate_hmac (&queue->in_hmac, &box[1], ntohs (hdr->size), &tmac); | ||
2035 | if (0 != memcmp (&tmac, &box->hmac, sizeof(tmac))) | ||
2036 | { | ||
2037 | GNUNET_break_op (0); | ||
2038 | queue_finish (queue); | ||
2039 | return 0; | ||
2040 | } | ||
2041 | pass_plaintext_to_core (queue, (const void *) &box[1], ntohs (hdr->size)); | ||
2042 | size = ntohs (hdr->size) + sizeof(*box); | ||
2043 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2044 | "Handling plaintext, box processed!\n"); | ||
2045 | GNUNET_STATISTICS_update (stats, | ||
2046 | "# bytes decrypted with BOX", | ||
2047 | size, | ||
2048 | GNUNET_NO); | ||
2049 | GNUNET_STATISTICS_update (stats, | ||
2050 | "# messages decrypted with BOX", | ||
2051 | 1, | ||
2052 | GNUNET_NO); | ||
2053 | break; | ||
2054 | |||
2055 | case GNUNET_MESSAGE_TYPE_COMMUNICATOR_TCP_REKEY: | ||
2056 | rekey = (const struct TCPRekey *) queue->pread_buf; | ||
2057 | if (sizeof(*rekey) > queue->pread_off) | ||
2058 | return 0; | ||
2059 | if (ntohs (hdr->size) != sizeof(*rekey)) | ||
2060 | { | ||
2061 | GNUNET_break_op (0); | ||
2062 | queue_finish (queue); | ||
2063 | return 0; | ||
2064 | } | ||
2065 | rekeyz = *rekey; | ||
2066 | memset (&rekeyz.hmac, 0, sizeof(rekeyz.hmac)); | ||
2067 | calculate_hmac (&queue->in_hmac, &rekeyz, sizeof(rekeyz), &tmac); | ||
2068 | if (0 != memcmp (&tmac, &rekey->hmac, sizeof(tmac))) | ||
2069 | { | ||
2070 | GNUNET_break_op (0); | ||
2071 | queue_finish (queue); | ||
2072 | return 0; | ||
2073 | } | ||
2074 | do_rekey (queue, rekey); | ||
2075 | size = ntohs (hdr->size); | ||
2076 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2077 | "Handling plaintext, rekey processed!\n"); | ||
2078 | GNUNET_STATISTICS_update (stats, | ||
2079 | "# rekeying successful", | ||
2080 | 1, | ||
2081 | GNUNET_NO); | ||
2082 | break; | ||
2083 | |||
2084 | case GNUNET_MESSAGE_TYPE_COMMUNICATOR_TCP_FINISH: | ||
2085 | fin = (const struct TCPFinish *) queue->pread_buf; | ||
2086 | if (sizeof(*fin) > queue->pread_off) | ||
2087 | return 0; | ||
2088 | if (ntohs (hdr->size) != sizeof(*fin)) | ||
2089 | { | ||
2090 | GNUNET_break_op (0); | ||
2091 | queue_finish (queue); | ||
2092 | return 0; | ||
2093 | } | ||
2094 | finz = *fin; | ||
2095 | memset (&finz.hmac, 0, sizeof(finz.hmac)); | ||
2096 | calculate_hmac (&queue->in_hmac, &finz, sizeof(finz), &tmac); | ||
2097 | if (0 != memcmp (&tmac, &fin->hmac, sizeof(tmac))) | ||
2098 | { | ||
2099 | GNUNET_break_op (0); | ||
2100 | queue_finish (queue); | ||
2101 | return 0; | ||
2102 | } | ||
2103 | /* handle FINISH by destroying queue */ | ||
2104 | queue_destroy (queue); | ||
2105 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2106 | "Handling plaintext, finish processed!\n"); | ||
2107 | break; | ||
2108 | |||
2109 | default: | ||
2110 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2111 | "Handling plaintext, nothing processed!\n"); | ||
2112 | GNUNET_break_op (0); | ||
2113 | queue_finish (queue); | ||
2114 | return 0; | ||
2115 | } | ||
2116 | GNUNET_assert (0 != size); | ||
2117 | if (-1 != queue->unverified_size) | ||
2118 | queue->unverified_size += size; | ||
2119 | return size; | ||
2120 | } | ||
2121 | |||
2122 | |||
2123 | /** | ||
2124 | * Queue read task. If we hit the timeout, disconnect it | ||
2125 | * | ||
2126 | * @param cls the `struct Queue *` to disconnect | ||
2127 | */ | ||
2128 | static void | ||
2129 | queue_read (void *cls) | ||
2130 | { | ||
2131 | struct Queue *queue = cls; | ||
2132 | struct GNUNET_TIME_Relative left; | ||
2133 | ssize_t rcvd; | ||
2134 | |||
2135 | queue->read_task = NULL; | ||
2136 | rcvd = GNUNET_NETWORK_socket_recv (queue->sock, | ||
2137 | &queue->cread_buf[queue->cread_off], | ||
2138 | BUF_SIZE - queue->cread_off); | ||
2139 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2140 | "Received %zd bytes from TCP queue\n", rcvd); | ||
2141 | if (-1 == rcvd) | ||
2142 | { | ||
2143 | if ((EAGAIN != errno) && (EINTR != errno)) | ||
2144 | { | ||
2145 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_DEBUG, "recv"); | ||
2146 | queue_destroy (queue); | ||
2147 | return; | ||
2148 | } | ||
2149 | /* try again */ | ||
2150 | left = GNUNET_TIME_absolute_get_remaining (queue->timeout); | ||
2151 | if (0 != left.rel_value_us) | ||
2152 | { | ||
2153 | queue->read_task = | ||
2154 | GNUNET_SCHEDULER_add_read_net (left, queue->sock, &queue_read, queue); | ||
2155 | return; | ||
2156 | } | ||
2157 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2158 | "Queue %p was idle for %s, disconnecting\n", | ||
2159 | queue, | ||
2160 | GNUNET_STRINGS_relative_time_to_string ( | ||
2161 | GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT, | ||
2162 | GNUNET_YES)); | ||
2163 | queue_destroy (queue); | ||
2164 | return; | ||
2165 | } | ||
2166 | if (0 == rcvd) | ||
2167 | { | ||
2168 | /* Orderly shutdown of connection */ | ||
2169 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2170 | "Socket for queue %p seems to have been closed\n", queue); | ||
2171 | queue_destroy (queue); | ||
2172 | return; | ||
2173 | } | ||
2174 | queue->timeout = | ||
2175 | GNUNET_TIME_relative_to_absolute (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT); | ||
2176 | queue->cread_off += rcvd; | ||
2177 | while ((queue->pread_off < sizeof(queue->pread_buf)) && | ||
2178 | (queue->cread_off > 0)) | ||
2179 | { | ||
2180 | size_t max = GNUNET_MIN (sizeof(queue->pread_buf) - queue->pread_off, | ||
2181 | queue->cread_off); | ||
2182 | size_t done; | ||
2183 | size_t total; | ||
2184 | size_t old_pread_off = queue->pread_off; | ||
2185 | |||
2186 | GNUNET_assert (0 == | ||
2187 | gcry_cipher_decrypt (queue->in_cipher, | ||
2188 | &queue->pread_buf[queue->pread_off], | ||
2189 | max, | ||
2190 | queue->cread_buf, | ||
2191 | max)); | ||
2192 | queue->pread_off += max; | ||
2193 | total = 0; | ||
2194 | while (0 != (done = try_handle_plaintext (queue))) | ||
2195 | { | ||
2196 | /* 'done' bytes of plaintext were used, shift buffer */ | ||
2197 | GNUNET_assert (done <= queue->pread_off); | ||
2198 | /* NOTE: this memmove() could possibly sometimes be | ||
2199 | avoided if we pass 'total' into try_handle_plaintext() | ||
2200 | and use it at an offset into the buffer there! */ | ||
2201 | memmove (queue->pread_buf, | ||
2202 | &queue->pread_buf[done], | ||
2203 | queue->pread_off - done); | ||
2204 | queue->pread_off -= done; | ||
2205 | total += done; | ||
2206 | /* The last plaintext was a rekey, abort for now */ | ||
2207 | if (GNUNET_YES == queue->rekeyed) | ||
2208 | break; | ||
2209 | } | ||
2210 | /* when we encounter a rekey message, the decryption above uses the | ||
2211 | wrong key for everything after the rekey; in that case, we have | ||
2212 | to re-do the decryption at 'total' instead of at 'max'. | ||
2213 | However, we have to take into account that the plaintext buffer may have | ||
2214 | already contained data and not jumped too far ahead in the ciphertext. | ||
2215 | If there is no rekey and the last message is incomplete (max > total), | ||
2216 | it is safe to keep the decryption so we shift by 'max' */ | ||
2217 | if (GNUNET_YES == queue->rekeyed) | ||
2218 | { | ||
2219 | max = total - old_pread_off; | ||
2220 | queue->rekeyed = GNUNET_NO; | ||
2221 | queue->pread_off = 0; | ||
2222 | } | ||
2223 | memmove (queue->cread_buf, &queue->cread_buf[max], queue->cread_off - max); | ||
2224 | queue->cread_off -= max; | ||
2225 | } | ||
2226 | if (BUF_SIZE == queue->cread_off) | ||
2227 | return; /* buffer full, suspend reading */ | ||
2228 | left = GNUNET_TIME_absolute_get_remaining (queue->timeout); | ||
2229 | if (0 != left.rel_value_us) | ||
2230 | { | ||
2231 | if (max_queue_length > queue->backpressure) | ||
2232 | { | ||
2233 | /* continue reading */ | ||
2234 | queue->read_task = | ||
2235 | GNUNET_SCHEDULER_add_read_net (left, queue->sock, &queue_read, queue); | ||
2236 | } | ||
2237 | return; | ||
2238 | } | ||
2239 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2240 | "Queue %p was idle for %s, disconnecting\n", | ||
2241 | queue, | ||
2242 | GNUNET_STRINGS_relative_time_to_string ( | ||
2243 | GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT, | ||
2244 | GNUNET_YES)); | ||
2245 | queue_destroy (queue); | ||
2246 | } | ||
2247 | |||
2248 | |||
2249 | /** | ||
2250 | * Convert a `struct sockaddr_in6 to a `struct sockaddr *` | ||
2251 | * | ||
2252 | * @param[out] sock_len set to the length of the address. | ||
2253 | * @param v6 The sockaddr_in6 to be converted. | ||
2254 | * @return The struct sockaddr *. | ||
2255 | */ | ||
2256 | static struct sockaddr * | ||
2257 | tcp_address_to_sockaddr_numeric_v6 (socklen_t *sock_len, | ||
2258 | struct sockaddr_in6 v6, | ||
2259 | unsigned int port) | ||
2260 | { | ||
2261 | struct sockaddr *in; | ||
2262 | |||
2263 | v6.sin6_family = AF_INET6; | ||
2264 | v6.sin6_port = htons ((uint16_t) port); | ||
2265 | #if HAVE_SOCKADDR_IN_SIN_LEN | ||
2266 | v6.sin6_len = sizeof(struct sockaddr_in6); | ||
2267 | #endif | ||
2268 | v6.sin6_flowinfo = 0; | ||
2269 | v6.sin6_scope_id = 0; | ||
2270 | in = GNUNET_memdup (&v6, sizeof(v6)); | ||
2271 | *sock_len = sizeof(struct sockaddr_in6); | ||
2272 | |||
2273 | return in; | ||
2274 | } | ||
2275 | |||
2276 | |||
2277 | /** | ||
2278 | * Convert a `struct sockaddr_in4 to a `struct sockaddr *` | ||
2279 | * | ||
2280 | * @param[out] sock_len set to the length of the address. | ||
2281 | * @param v4 The sockaddr_in4 to be converted. | ||
2282 | * @return The struct sockaddr *. | ||
2283 | */ | ||
2284 | static struct sockaddr * | ||
2285 | tcp_address_to_sockaddr_numeric_v4 (socklen_t *sock_len, | ||
2286 | struct sockaddr_in v4, | ||
2287 | unsigned int port) | ||
2288 | { | ||
2289 | struct sockaddr *in; | ||
2290 | |||
2291 | v4.sin_family = AF_INET; | ||
2292 | v4.sin_port = htons ((uint16_t) port); | ||
2293 | #if HAVE_SOCKADDR_IN_SIN_LEN | ||
2294 | v4.sin_len = sizeof(struct sockaddr_in); | ||
2295 | #endif | ||
2296 | in = GNUNET_memdup (&v4, sizeof(v4)); | ||
2297 | *sock_len = sizeof(struct sockaddr_in); | ||
2298 | return in; | ||
2299 | } | ||
2300 | |||
2301 | |||
2302 | /** | ||
2303 | * Convert TCP bind specification to a `struct PortOnlyIpv4Ipv6 *` | ||
2304 | * | ||
2305 | * @param bindto bind specification to convert. | ||
2306 | * @return The converted bindto specification. | ||
2307 | */ | ||
2308 | static struct PortOnlyIpv4Ipv6 * | ||
2309 | tcp_address_to_sockaddr_port_only (const char *bindto, unsigned int *port) | ||
2310 | { | ||
2311 | struct PortOnlyIpv4Ipv6 *po; | ||
2312 | struct sockaddr_in *i4; | ||
2313 | struct sockaddr_in6 *i6; | ||
2314 | socklen_t sock_len_ipv4; | ||
2315 | socklen_t sock_len_ipv6; | ||
2316 | |||
2317 | /* interpreting value as just a PORT number */ | ||
2318 | if (*port > UINT16_MAX) | ||
2319 | { | ||
2320 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
2321 | "BINDTO specification `%s' invalid: value too large for port\n", | ||
2322 | bindto); | ||
2323 | return NULL; | ||
2324 | } | ||
2325 | |||
2326 | po = GNUNET_new (struct PortOnlyIpv4Ipv6); | ||
2327 | |||
2328 | if (GNUNET_YES == disable_v6) | ||
2329 | { | ||
2330 | i4 = GNUNET_malloc (sizeof(struct sockaddr_in)); | ||
2331 | po->addr_ipv4 = tcp_address_to_sockaddr_numeric_v4 (&sock_len_ipv4, *i4, | ||
2332 | *port); | ||
2333 | po->addr_len_ipv4 = sock_len_ipv4; | ||
2334 | } | ||
2335 | else | ||
2336 | { | ||
2337 | |||
2338 | i4 = GNUNET_malloc (sizeof(struct sockaddr_in)); | ||
2339 | po->addr_ipv4 = tcp_address_to_sockaddr_numeric_v4 (&sock_len_ipv4, *i4, | ||
2340 | *port); | ||
2341 | po->addr_len_ipv4 = sock_len_ipv4; | ||
2342 | |||
2343 | i6 = GNUNET_malloc (sizeof(struct sockaddr_in6)); | ||
2344 | po->addr_ipv6 = tcp_address_to_sockaddr_numeric_v6 (&sock_len_ipv6, *i6, | ||
2345 | *port); | ||
2346 | |||
2347 | po->addr_len_ipv6 = sock_len_ipv6; | ||
2348 | |||
2349 | GNUNET_free (i6); | ||
2350 | } | ||
2351 | |||
2352 | GNUNET_free (i4); | ||
2353 | |||
2354 | return po; | ||
2355 | } | ||
2356 | |||
2357 | |||
2358 | /** | ||
2359 | * This Method extracts the address part of the BINDTO string. | ||
2360 | * | ||
2361 | * @param bindto String we extract the address part from. | ||
2362 | * @return The extracted address string. | ||
2363 | */ | ||
2364 | static char * | ||
2365 | extract_address (const char *bindto) | ||
2366 | { | ||
2367 | char *addr; | ||
2368 | char *start; | ||
2369 | char *token; | ||
2370 | char *cp; | ||
2371 | char *rest = NULL; | ||
2372 | |||
2373 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2374 | "extract address with bindto %s\n", | ||
2375 | bindto); | ||
2376 | |||
2377 | if (NULL == bindto) | ||
2378 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
2379 | "bindto is NULL\n"); | ||
2380 | |||
2381 | cp = GNUNET_strdup (bindto); | ||
2382 | |||
2383 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2384 | "extract address 2\n"); | ||
2385 | |||
2386 | start = cp; | ||
2387 | if (('[' == *cp) && (']' == cp[strlen (cp) - 1])) | ||
2388 | { | ||
2389 | start++; /* skip over '['*/ | ||
2390 | cp[strlen (cp) - 1] = '\0'; /* eat ']'*/ | ||
2391 | addr = GNUNET_strdup (start); | ||
2392 | } | ||
2393 | else | ||
2394 | { | ||
2395 | token = strtok_r (cp, "]", &rest); | ||
2396 | if (strlen (bindto) == strlen (token)) | ||
2397 | { | ||
2398 | token = strtok_r (cp, ":", &rest); | ||
2399 | addr = GNUNET_strdup (token); | ||
2400 | } | ||
2401 | else | ||
2402 | { | ||
2403 | token++; | ||
2404 | addr = GNUNET_strdup (token); | ||
2405 | } | ||
2406 | } | ||
2407 | |||
2408 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2409 | "tcp address: %s\n", | ||
2410 | addr); | ||
2411 | GNUNET_free (cp); | ||
2412 | return addr; | ||
2413 | } | ||
2414 | |||
2415 | |||
2416 | /** | ||
2417 | * This Method extracts the port part of the BINDTO string. | ||
2418 | * | ||
2419 | * @param addr_and_port String we extract the port from. | ||
2420 | * @return The extracted port as unsigned int. | ||
2421 | */ | ||
2422 | static unsigned int | ||
2423 | extract_port (const char *addr_and_port) | ||
2424 | { | ||
2425 | unsigned int port; | ||
2426 | char dummy[2]; | ||
2427 | char *token; | ||
2428 | char *addr; | ||
2429 | char *colon; | ||
2430 | char *cp; | ||
2431 | char *rest = NULL; | ||
2432 | |||
2433 | if (NULL != addr_and_port) | ||
2434 | { | ||
2435 | cp = GNUNET_strdup (addr_and_port); | ||
2436 | token = strtok_r (cp, "]", &rest); | ||
2437 | if (strlen (addr_and_port) == strlen (token)) | ||
2438 | { | ||
2439 | colon = strrchr (cp, ':'); | ||
2440 | if (NULL == colon) | ||
2441 | { | ||
2442 | GNUNET_free (cp); | ||
2443 | return 0; | ||
2444 | } | ||
2445 | addr = colon; | ||
2446 | addr++; | ||
2447 | } | ||
2448 | else | ||
2449 | { | ||
2450 | token = strtok_r (NULL, "]", &rest); | ||
2451 | if (NULL == token) | ||
2452 | { | ||
2453 | GNUNET_free (cp); | ||
2454 | return 0; | ||
2455 | } | ||
2456 | else | ||
2457 | { | ||
2458 | addr = token; | ||
2459 | addr++; | ||
2460 | } | ||
2461 | } | ||
2462 | |||
2463 | |||
2464 | if (1 == sscanf (addr, "%u%1s", &port, dummy)) | ||
2465 | { | ||
2466 | /* interpreting value as just a PORT number */ | ||
2467 | if (port > UINT16_MAX) | ||
2468 | { | ||
2469 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
2470 | "Port `%u' invalid: value too large for port\n", | ||
2471 | port); | ||
2472 | GNUNET_free (cp); | ||
2473 | return 0; | ||
2474 | } | ||
2475 | } | ||
2476 | else | ||
2477 | { | ||
2478 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
2479 | "BINDTO specification invalid: last ':' not followed by number\n"); | ||
2480 | GNUNET_free (cp); | ||
2481 | return 0; | ||
2482 | } | ||
2483 | GNUNET_free (cp); | ||
2484 | } | ||
2485 | else | ||
2486 | { | ||
2487 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
2488 | "return 0\n"); | ||
2489 | /* interpret missing port as 0, aka pick any free one */ | ||
2490 | port = 0; | ||
2491 | } | ||
2492 | |||
2493 | return port; | ||
2494 | } | ||
2495 | |||
2496 | |||
2497 | /** | ||
2498 | * Convert TCP bind specification to a `struct sockaddr *` | ||
2499 | * | ||
2500 | * @param bindto bind specification to convert | ||
2501 | * @param[out] sock_len set to the length of the address | ||
2502 | * @return converted bindto specification | ||
2503 | */ | ||
2504 | static struct sockaddr * | ||
2505 | tcp_address_to_sockaddr (const char *bindto, socklen_t *sock_len) | ||
2506 | { | ||
2507 | struct sockaddr *in; | ||
2508 | unsigned int port; | ||
2509 | struct sockaddr_in v4; | ||
2510 | struct sockaddr_in6 v6; | ||
2511 | char *start; | ||
2512 | |||
2513 | memset (&v4, 0, sizeof(v4)); | ||
2514 | start = extract_address (bindto); | ||
2515 | GNUNET_assert (NULL != start); | ||
2516 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2517 | "start %s\n", | ||
2518 | start); | ||
2519 | |||
2520 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2521 | "!bindto %s\n", | ||
2522 | bindto); | ||
2523 | |||
2524 | |||
2525 | if (1 == inet_pton (AF_INET, start, &v4.sin_addr)) | ||
2526 | { | ||
2527 | port = extract_port (bindto); | ||
2528 | |||
2529 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2530 | "port %u\n", | ||
2531 | port); | ||
2532 | |||
2533 | in = tcp_address_to_sockaddr_numeric_v4 (sock_len, v4, port); | ||
2534 | } | ||
2535 | else if (1 == inet_pton (AF_INET6, start, &v6.sin6_addr)) | ||
2536 | { | ||
2537 | port = extract_port (bindto); | ||
2538 | in = tcp_address_to_sockaddr_numeric_v6 (sock_len, v6, port); | ||
2539 | } | ||
2540 | else | ||
2541 | { | ||
2542 | GNUNET_assert (0); | ||
2543 | } | ||
2544 | |||
2545 | GNUNET_free (start); | ||
2546 | return in; | ||
2547 | } | ||
2548 | |||
2549 | |||
2550 | /** | ||
2551 | * Signature of functions implementing the sending functionality of a | ||
2552 | * message queue. | ||
2553 | * | ||
2554 | * @param mq the message queue | ||
2555 | * @param msg the message to send | ||
2556 | * @param impl_state our `struct Queue` | ||
2557 | */ | ||
2558 | static void | ||
2559 | mq_send (struct GNUNET_MQ_Handle *mq, | ||
2560 | const struct GNUNET_MessageHeader *msg, | ||
2561 | void *impl_state) | ||
2562 | { | ||
2563 | struct Queue *queue = impl_state; | ||
2564 | uint16_t msize = ntohs (msg->size); | ||
2565 | struct TCPBox box; | ||
2566 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2567 | "In MQ send. Queue finishing: %s; write task running: %s\n", | ||
2568 | (GNUNET_YES == queue->finishing) ? "yes" : "no", | ||
2569 | (NULL == queue->write_task) ? "yes" : "no"); | ||
2570 | GNUNET_assert (mq == queue->mq); | ||
2571 | queue->mq_awaits_continue = GNUNET_YES; | ||
2572 | if (GNUNET_YES == queue->finishing) | ||
2573 | return; /* this queue is dying, drop msg */ | ||
2574 | GNUNET_assert (0 == queue->pwrite_off); | ||
2575 | box.header.type = htons (GNUNET_MESSAGE_TYPE_COMMUNICATOR_TCP_BOX); | ||
2576 | box.header.size = htons (msize); | ||
2577 | calculate_hmac (&queue->out_hmac, msg, msize, &box.hmac); | ||
2578 | memcpy (&queue->pwrite_buf[queue->pwrite_off], &box, sizeof(box)); | ||
2579 | queue->pwrite_off += sizeof(box); | ||
2580 | memcpy (&queue->pwrite_buf[queue->pwrite_off], msg, msize); | ||
2581 | queue->pwrite_off += msize; | ||
2582 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2583 | "%lu bytes of plaintext to send\n", queue->pwrite_off); | ||
2584 | GNUNET_assert (NULL != queue->sock); | ||
2585 | if (NULL == queue->write_task) | ||
2586 | queue->write_task = | ||
2587 | GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
2588 | queue->sock, | ||
2589 | &queue_write, | ||
2590 | queue); | ||
2591 | } | ||
2592 | |||
2593 | |||
2594 | /** | ||
2595 | * Signature of functions implementing the destruction of a message | ||
2596 | * queue. Implementations must not free @a mq, but should take care | ||
2597 | * of @a impl_state. | ||
2598 | * | ||
2599 | * @param mq the message queue to destroy | ||
2600 | * @param impl_state our `struct Queue` | ||
2601 | */ | ||
2602 | static void | ||
2603 | mq_destroy (struct GNUNET_MQ_Handle *mq, void *impl_state) | ||
2604 | { | ||
2605 | struct Queue *queue = impl_state; | ||
2606 | |||
2607 | if (mq == queue->mq) | ||
2608 | { | ||
2609 | queue->mq = NULL; | ||
2610 | queue_finish (queue); | ||
2611 | } | ||
2612 | } | ||
2613 | |||
2614 | |||
2615 | /** | ||
2616 | * Implementation function that cancels the currently sent message. | ||
2617 | * | ||
2618 | * @param mq message queue | ||
2619 | * @param impl_state our `struct Queue` | ||
2620 | */ | ||
2621 | static void | ||
2622 | mq_cancel (struct GNUNET_MQ_Handle *mq, void *impl_state) | ||
2623 | { | ||
2624 | struct Queue *queue = impl_state; | ||
2625 | |||
2626 | GNUNET_assert (0 != queue->pwrite_off); | ||
2627 | queue->pwrite_off = 0; | ||
2628 | } | ||
2629 | |||
2630 | |||
2631 | /** | ||
2632 | * Generic error handler, called with the appropriate | ||
2633 | * error code and the same closure specified at the creation of | ||
2634 | * the message queue. | ||
2635 | * Not every message queue implementation supports an error handler. | ||
2636 | * | ||
2637 | * @param cls our `struct Queue` | ||
2638 | * @param error error code | ||
2639 | */ | ||
2640 | static void | ||
2641 | mq_error (void *cls, enum GNUNET_MQ_Error error) | ||
2642 | { | ||
2643 | struct Queue *queue = cls; | ||
2644 | |||
2645 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
2646 | "MQ error in queue to %s: %d\n", | ||
2647 | GNUNET_i2s (&queue->target), | ||
2648 | (int) error); | ||
2649 | queue_finish (queue); | ||
2650 | } | ||
2651 | |||
2652 | |||
2653 | /** | ||
2654 | * Add the given @a queue to our internal data structure. Setup the | ||
2655 | * MQ processing and inform transport that the queue is ready. Must | ||
2656 | * be called after the KX for outgoing messages has been bootstrapped. | ||
2657 | * | ||
2658 | * @param queue queue to boot | ||
2659 | */ | ||
2660 | static void | ||
2661 | boot_queue (struct Queue *queue) | ||
2662 | { | ||
2663 | queue->nt = | ||
2664 | GNUNET_NT_scanner_get_type (is, queue->address, queue->address_len); | ||
2665 | (void) GNUNET_CONTAINER_multihashmap_put ( | ||
2666 | queue_map, | ||
2667 | &queue->key, | ||
2668 | queue, | ||
2669 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE); | ||
2670 | GNUNET_STATISTICS_set (stats, | ||
2671 | "# queues active", | ||
2672 | GNUNET_CONTAINER_multihashmap_size (queue_map), | ||
2673 | GNUNET_NO); | ||
2674 | queue->timeout = | ||
2675 | GNUNET_TIME_relative_to_absolute (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT); | ||
2676 | queue->mq = GNUNET_MQ_queue_for_callbacks (&mq_send, | ||
2677 | &mq_destroy, | ||
2678 | &mq_cancel, | ||
2679 | queue, | ||
2680 | NULL, | ||
2681 | &mq_error, | ||
2682 | queue); | ||
2683 | } | ||
2684 | |||
2685 | |||
2686 | /** | ||
2687 | * Generate and transmit our ephemeral key and the signature for | ||
2688 | * the initial KX with the other peer. Must be called first, before | ||
2689 | * any other bytes are ever written to the output buffer. Note that | ||
2690 | * our cipher must already be initialized when calling this function. | ||
2691 | * Helper function for #start_initial_kx_out(). | ||
2692 | * | ||
2693 | * @param queue queue to do KX for | ||
2694 | * @param epub our public key for the KX | ||
2695 | */ | ||
2696 | static void | ||
2697 | transmit_kx (struct Queue *queue, | ||
2698 | const struct GNUNET_CRYPTO_EcdhePublicKey *epub) | ||
2699 | { | ||
2700 | struct TcpHandshakeSignature ths; | ||
2701 | struct TCPConfirmation tc; | ||
2702 | |||
2703 | memcpy (queue->cwrite_buf, epub, sizeof(*epub)); | ||
2704 | queue->cwrite_off = sizeof(*epub); | ||
2705 | /* compute 'tc' and append in encrypted format to cwrite_buf */ | ||
2706 | tc.sender = my_identity; | ||
2707 | tc.monotonic_time = | ||
2708 | GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get_monotonic (cfg)); | ||
2709 | GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_NONCE, | ||
2710 | &tc.challenge, | ||
2711 | sizeof(tc.challenge)); | ||
2712 | ths.purpose.purpose = htonl ( | ||
2713 | GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_TCP_HANDSHAKE); | ||
2714 | ths.purpose.size = htonl (sizeof(ths)); | ||
2715 | ths.sender = my_identity; | ||
2716 | ths.receiver = queue->target; | ||
2717 | ths.ephemeral = *epub; | ||
2718 | ths.monotonic_time = tc.monotonic_time; | ||
2719 | ths.challenge = tc.challenge; | ||
2720 | GNUNET_CRYPTO_eddsa_sign (my_private_key, | ||
2721 | &ths, | ||
2722 | &tc.sender_sig); | ||
2723 | GNUNET_assert (0 == | ||
2724 | gcry_cipher_encrypt (queue->out_cipher, | ||
2725 | &queue->cwrite_buf[queue->cwrite_off], | ||
2726 | sizeof(tc), | ||
2727 | &tc, | ||
2728 | sizeof(tc))); | ||
2729 | queue->challenge = tc.challenge; | ||
2730 | queue->cwrite_off += sizeof(tc); | ||
2731 | |||
2732 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2733 | "handshake written\n"); | ||
2734 | } | ||
2735 | |||
2736 | |||
2737 | /** | ||
2738 | * Initialize our key material for outgoing transmissions and | ||
2739 | * inform the other peer about it. Must be called first before | ||
2740 | * any data is sent. | ||
2741 | * | ||
2742 | * @param queue the queue to setup | ||
2743 | */ | ||
2744 | static void | ||
2745 | start_initial_kx_out (struct Queue *queue) | ||
2746 | { | ||
2747 | struct GNUNET_CRYPTO_EcdhePublicKey epub; | ||
2748 | struct GNUNET_HashCode k; | ||
2749 | |||
2750 | // TODO: We could use the Elligator KEM here! https://bugs.gnunet.org/view.php?id=8065 | ||
2751 | GNUNET_CRYPTO_eddsa_kem_encaps (&queue->target.public_key, &epub, &k); | ||
2752 | setup_out_cipher (queue, &k); | ||
2753 | transmit_kx (queue, &epub); | ||
2754 | } | ||
2755 | |||
2756 | |||
2757 | /** | ||
2758 | * Callback called when peerstore store operation for handshake monotime is finished. | ||
2759 | * @param cls Queue context the store operation was executed. | ||
2760 | * @param success Store operation was successful (GNUNET_OK) or not. | ||
2761 | */ | ||
2762 | static void | ||
2763 | handshake_monotime_store_cb (void *cls, int success) | ||
2764 | { | ||
2765 | struct Queue *queue = cls; | ||
2766 | if (GNUNET_OK != success) | ||
2767 | { | ||
2768 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
2769 | "Failed to store handshake monotonic time in PEERSTORE!\n"); | ||
2770 | } | ||
2771 | queue->handshake_monotime_sc = NULL; | ||
2772 | GNUNET_PEERSTORE_iteration_next (queue->handshake_ack_monotime_get, 1); | ||
2773 | } | ||
2774 | |||
2775 | |||
2776 | /** | ||
2777 | * Callback called by peerstore when records for GNUNET_PEERSTORE_TRANSPORT_TCP_COMMUNICATOR_HANDSHAKE | ||
2778 | * where found. | ||
2779 | * @param cls Queue context the store operation was executed. | ||
2780 | * @param record The record found or NULL if there is no record left. | ||
2781 | * @param emsg Message from peerstore. | ||
2782 | */ | ||
2783 | static void | ||
2784 | handshake_monotime_cb (void *cls, | ||
2785 | const struct GNUNET_PEERSTORE_Record *record, | ||
2786 | const char *emsg) | ||
2787 | { | ||
2788 | struct Queue *queue = cls; | ||
2789 | struct GNUNET_TIME_AbsoluteNBO *mtbe; | ||
2790 | struct GNUNET_TIME_Absolute mt; | ||
2791 | const struct GNUNET_PeerIdentity *pid; | ||
2792 | struct GNUNET_TIME_AbsoluteNBO *handshake_monotonic_time; | ||
2793 | |||
2794 | (void) emsg; | ||
2795 | |||
2796 | handshake_monotonic_time = &queue->handshake_monotonic_time; | ||
2797 | pid = &queue->target; | ||
2798 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2799 | "tcp handshake with us %s\n", | ||
2800 | GNUNET_i2s (&my_identity)); | ||
2801 | if (NULL == record) | ||
2802 | { | ||
2803 | queue->handshake_monotime_get = NULL; | ||
2804 | return; | ||
2805 | } | ||
2806 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2807 | "tcp handshake from peer %s\n", | ||
2808 | GNUNET_i2s (pid)); | ||
2809 | if (sizeof(*mtbe) != record->value_size) | ||
2810 | { | ||
2811 | GNUNET_PEERSTORE_iteration_next (queue->handshake_ack_monotime_get, 1); | ||
2812 | GNUNET_break (0); | ||
2813 | return; | ||
2814 | } | ||
2815 | mtbe = record->value; | ||
2816 | mt = GNUNET_TIME_absolute_ntoh (*mtbe); | ||
2817 | if (mt.abs_value_us > GNUNET_TIME_absolute_ntoh ( | ||
2818 | queue->handshake_monotonic_time).abs_value_us) | ||
2819 | { | ||
2820 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
2821 | "Queue from %s dropped, handshake monotime in the past\n", | ||
2822 | GNUNET_i2s (&queue->target)); | ||
2823 | GNUNET_break (0); | ||
2824 | GNUNET_PEERSTORE_iteration_stop (queue->handshake_ack_monotime_get); | ||
2825 | queue->handshake_ack_monotime_get = NULL; | ||
2826 | queue_finish (queue); | ||
2827 | return; | ||
2828 | } | ||
2829 | queue->handshake_monotime_sc = GNUNET_PEERSTORE_store (peerstore, | ||
2830 | "transport_tcp_communicator", | ||
2831 | pid, | ||
2832 | GNUNET_PEERSTORE_TRANSPORT_TCP_COMMUNICATOR_HANDSHAKE, | ||
2833 | handshake_monotonic_time, | ||
2834 | sizeof(* | ||
2835 | handshake_monotonic_time), | ||
2836 | GNUNET_TIME_UNIT_FOREVER_ABS, | ||
2837 | GNUNET_PEERSTORE_STOREOPTION_REPLACE, | ||
2838 | & | ||
2839 | handshake_monotime_store_cb, | ||
2840 | queue); | ||
2841 | } | ||
2842 | |||
2843 | |||
2844 | /** | ||
2845 | * We have received the first bytes from the other side on a @a queue. | ||
2846 | * Decrypt the @a tc contained in @a ibuf and check the signature. | ||
2847 | * Note that #setup_in_cipher() must have already been called. | ||
2848 | * | ||
2849 | * @param queue queue to decrypt initial bytes from other peer for | ||
2850 | * @param[out] tc where to store the result | ||
2851 | * @param ibuf incoming data, of size | ||
2852 | * `INITIAL_KX_SIZE` | ||
2853 | * @return #GNUNET_OK if the signature was OK, #GNUNET_SYSERR if not | ||
2854 | */ | ||
2855 | static int | ||
2856 | decrypt_and_check_tc (struct Queue *queue, | ||
2857 | struct TCPConfirmation *tc, | ||
2858 | char *ibuf) | ||
2859 | { | ||
2860 | struct TcpHandshakeSignature ths; | ||
2861 | enum GNUNET_GenericReturnValue ret; | ||
2862 | |||
2863 | GNUNET_assert ( | ||
2864 | 0 == | ||
2865 | gcry_cipher_decrypt (queue->in_cipher, | ||
2866 | tc, | ||
2867 | sizeof(*tc), | ||
2868 | &ibuf[sizeof(struct GNUNET_CRYPTO_EcdhePublicKey)], | ||
2869 | sizeof(*tc))); | ||
2870 | ths.purpose.purpose = htonl ( | ||
2871 | GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_TCP_HANDSHAKE); | ||
2872 | ths.purpose.size = htonl (sizeof(ths)); | ||
2873 | ths.sender = tc->sender; | ||
2874 | ths.receiver = my_identity; | ||
2875 | memcpy (&ths.ephemeral, ibuf, sizeof(struct GNUNET_CRYPTO_EcdhePublicKey)); | ||
2876 | ths.monotonic_time = tc->monotonic_time; | ||
2877 | ths.challenge = tc->challenge; | ||
2878 | ret = GNUNET_CRYPTO_eddsa_verify ( | ||
2879 | GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_TCP_HANDSHAKE, | ||
2880 | &ths, | ||
2881 | &tc->sender_sig, | ||
2882 | &tc->sender.public_key); | ||
2883 | if (GNUNET_YES == ret) | ||
2884 | queue->handshake_monotime_get = | ||
2885 | GNUNET_PEERSTORE_iteration_start (peerstore, | ||
2886 | "transport_tcp_communicator", | ||
2887 | &queue->target, | ||
2888 | GNUNET_PEERSTORE_TRANSPORT_TCP_COMMUNICATOR_HANDSHAKE, | ||
2889 | &handshake_monotime_cb, | ||
2890 | queue); | ||
2891 | return ret; | ||
2892 | } | ||
2893 | |||
2894 | |||
2895 | /** | ||
2896 | * Read from the socket of the queue until we have enough data | ||
2897 | * to initialize the decryption logic and can switch to regular | ||
2898 | * reading. | ||
2899 | * | ||
2900 | * @param cls a `struct Queue` | ||
2901 | */ | ||
2902 | static void | ||
2903 | queue_read_kx (void *cls) | ||
2904 | { | ||
2905 | struct Queue *queue = cls; | ||
2906 | ssize_t rcvd; | ||
2907 | struct GNUNET_TIME_Relative left; | ||
2908 | struct TCPConfirmation tc; | ||
2909 | |||
2910 | queue->read_task = NULL; | ||
2911 | left = GNUNET_TIME_absolute_get_remaining (queue->timeout); | ||
2912 | if (0 == left.rel_value_us) | ||
2913 | { | ||
2914 | queue_destroy (queue); | ||
2915 | return; | ||
2916 | } | ||
2917 | rcvd = GNUNET_NETWORK_socket_recv (queue->sock, | ||
2918 | &queue->cread_buf[queue->cread_off], | ||
2919 | BUF_SIZE - queue->cread_off); | ||
2920 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2921 | "Received %lu bytes to write in buffer of size %lu for KX from queue %p (expires in %" | ||
2922 | PRIu64 ")\n", | ||
2923 | rcvd, BUF_SIZE - queue->cread_off, queue, left.rel_value_us); | ||
2924 | if (-1 == rcvd) | ||
2925 | { | ||
2926 | if ((EAGAIN != errno) && (EINTR != errno)) | ||
2927 | { | ||
2928 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_DEBUG, "recv"); | ||
2929 | queue_destroy (queue); | ||
2930 | return; | ||
2931 | } | ||
2932 | queue->read_task = | ||
2933 | GNUNET_SCHEDULER_add_read_net (left, queue->sock, &queue_read_kx, queue); | ||
2934 | return; | ||
2935 | } | ||
2936 | if (0 == rcvd) | ||
2937 | { | ||
2938 | /* Orderly shutdown of connection */ | ||
2939 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2940 | "Socket for queue %p seems to have been closed\n", queue); | ||
2941 | queue_destroy (queue); | ||
2942 | return; | ||
2943 | } | ||
2944 | queue->cread_off += rcvd; | ||
2945 | if (queue->cread_off < INITIAL_KX_SIZE) | ||
2946 | { | ||
2947 | /* read more */ | ||
2948 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
2949 | "%lu/%lu bytes of KX read. Rescheduling...\n", | ||
2950 | queue->cread_off, INITIAL_KX_SIZE); | ||
2951 | queue->read_task = | ||
2952 | GNUNET_SCHEDULER_add_read_net (left, queue->sock, &queue_read_kx, queue); | ||
2953 | return; | ||
2954 | } | ||
2955 | /* we got all the data, let's find out who we are talking to! */ | ||
2956 | setup_in_cipher ((const struct GNUNET_CRYPTO_EcdhePublicKey *) | ||
2957 | queue->cread_buf, | ||
2958 | queue); | ||
2959 | if (GNUNET_OK != decrypt_and_check_tc (queue, &tc, queue->cread_buf)) | ||
2960 | { | ||
2961 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
2962 | "Invalid TCP KX received from %s\n", | ||
2963 | GNUNET_a2s (queue->address, queue->address_len)); | ||
2964 | queue_destroy (queue); | ||
2965 | return; | ||
2966 | } | ||
2967 | if (0 != | ||
2968 | memcmp (&tc.sender, &queue->target, sizeof(struct GNUNET_PeerIdentity))) | ||
2969 | { | ||
2970 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
2971 | "Invalid sender in TCP KX received from %s\n", | ||
2972 | GNUNET_a2s (queue->address, queue->address_len)); | ||
2973 | queue_destroy (queue); | ||
2974 | return; | ||
2975 | } | ||
2976 | send_challenge (tc.challenge, queue); | ||
2977 | queue->write_task = | ||
2978 | GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
2979 | queue->sock, | ||
2980 | &queue_write, | ||
2981 | queue); | ||
2982 | |||
2983 | /* update queue timeout */ | ||
2984 | queue->timeout = | ||
2985 | GNUNET_TIME_relative_to_absolute (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT); | ||
2986 | /* prepare to continue with regular read task immediately */ | ||
2987 | memmove (queue->cread_buf, | ||
2988 | &queue->cread_buf[INITIAL_KX_SIZE], | ||
2989 | queue->cread_off - (INITIAL_KX_SIZE)); | ||
2990 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2991 | "cread_off is %lu bytes before adjusting\n", | ||
2992 | queue->cread_off); | ||
2993 | queue->cread_off -= INITIAL_KX_SIZE; | ||
2994 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2995 | "cread_off set to %lu bytes\n", | ||
2996 | queue->cread_off); | ||
2997 | queue->read_task = GNUNET_SCHEDULER_add_now (&queue_read, queue); | ||
2998 | } | ||
2999 | |||
3000 | |||
3001 | /** | ||
3002 | * Read from the socket of the proto queue until we have enough data | ||
3003 | * to upgrade to full queue. | ||
3004 | * | ||
3005 | * @param cls a `struct ProtoQueue` | ||
3006 | */ | ||
3007 | static void | ||
3008 | proto_read_kx (void *cls) | ||
3009 | { | ||
3010 | struct ProtoQueue *pq = cls; | ||
3011 | ssize_t rcvd; | ||
3012 | struct GNUNET_TIME_Relative left; | ||
3013 | struct Queue *queue; | ||
3014 | struct TCPConfirmation tc; | ||
3015 | GNUNET_SCHEDULER_TaskCallback read_task; | ||
3016 | |||
3017 | pq->read_task = NULL; | ||
3018 | left = GNUNET_TIME_absolute_get_remaining (pq->timeout); | ||
3019 | if (0 == left.rel_value_us) | ||
3020 | { | ||
3021 | free_proto_queue (pq); | ||
3022 | return; | ||
3023 | } | ||
3024 | rcvd = GNUNET_NETWORK_socket_recv (pq->sock, | ||
3025 | &pq->ibuf[pq->ibuf_off], | ||
3026 | sizeof(pq->ibuf) - pq->ibuf_off); | ||
3027 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3028 | "Proto received %lu bytes for KX\n", rcvd); | ||
3029 | if (-1 == rcvd) | ||
3030 | { | ||
3031 | if ((EAGAIN != errno) && (EINTR != errno)) | ||
3032 | { | ||
3033 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_DEBUG, "recv"); | ||
3034 | free_proto_queue (pq); | ||
3035 | return; | ||
3036 | } | ||
3037 | /* try again */ | ||
3038 | pq->read_task = | ||
3039 | GNUNET_SCHEDULER_add_read_net (left, pq->sock, &proto_read_kx, pq); | ||
3040 | return; | ||
3041 | } | ||
3042 | if (0 == rcvd) | ||
3043 | { | ||
3044 | /* Orderly shutdown of connection */ | ||
3045 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3046 | "Socket for proto queue %p seems to have been closed\n", pq); | ||
3047 | free_proto_queue (pq); | ||
3048 | return; | ||
3049 | } | ||
3050 | pq->ibuf_off += rcvd; | ||
3051 | if (sizeof (struct TCPNATProbeMessage) == pq->ibuf_off) | ||
3052 | { | ||
3053 | struct TCPNATProbeMessage *pm = (struct TCPNATProbeMessage *) pq->ibuf; | ||
3054 | |||
3055 | check_and_remove_pending_reversal (pq->address, pq->address->sa_family, | ||
3056 | &pm->clientIdentity); | ||
3057 | |||
3058 | queue = GNUNET_new (struct Queue); | ||
3059 | queue->target = pm->clientIdentity; | ||
3060 | queue->cs = GNUNET_TRANSPORT_CS_OUTBOUND; | ||
3061 | read_task = &queue_read_kx; | ||
3062 | } | ||
3063 | else if (pq->ibuf_off > sizeof(pq->ibuf)) | ||
3064 | { | ||
3065 | /* read more */ | ||
3066 | pq->read_task = | ||
3067 | GNUNET_SCHEDULER_add_read_net (left, pq->sock, &proto_read_kx, pq); | ||
3068 | return; | ||
3069 | } | ||
3070 | else | ||
3071 | { | ||
3072 | /* we got all the data, let's find out who we are talking to! */ | ||
3073 | queue = GNUNET_new (struct Queue); | ||
3074 | setup_in_cipher ((const struct GNUNET_CRYPTO_EcdhePublicKey *) pq->ibuf, | ||
3075 | queue); | ||
3076 | if (GNUNET_OK != decrypt_and_check_tc (queue, &tc, pq->ibuf)) | ||
3077 | { | ||
3078 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
3079 | "Invalid TCP KX received from %s\n", | ||
3080 | GNUNET_a2s (pq->address, pq->address_len)); | ||
3081 | gcry_cipher_close (queue->in_cipher); | ||
3082 | GNUNET_free (queue); | ||
3083 | free_proto_queue (pq); | ||
3084 | return; | ||
3085 | } | ||
3086 | queue->target = tc.sender; | ||
3087 | queue->cs = GNUNET_TRANSPORT_CS_INBOUND; | ||
3088 | read_task = &queue_read; | ||
3089 | } | ||
3090 | queue->address = pq->address; /* steals reference */ | ||
3091 | queue->address_len = pq->address_len; | ||
3092 | queue->listen_sock = pq->listen_sock; | ||
3093 | queue->sock = pq->sock; | ||
3094 | |||
3095 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3096 | "created queue with target %s\n", | ||
3097 | GNUNET_i2s (&queue->target)); | ||
3098 | |||
3099 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3100 | "start kx proto\n"); | ||
3101 | |||
3102 | start_initial_kx_out (queue); | ||
3103 | boot_queue (queue); | ||
3104 | queue->read_task = | ||
3105 | GNUNET_SCHEDULER_add_read_net (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT, | ||
3106 | queue->sock, | ||
3107 | read_task, | ||
3108 | queue); | ||
3109 | queue->write_task = | ||
3110 | GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
3111 | queue->sock, | ||
3112 | &queue_write, | ||
3113 | queue); | ||
3114 | // TODO To early! Move it somewhere else. | ||
3115 | // send_challenge (tc.challenge, queue); | ||
3116 | queue->challenge_received = tc.challenge; | ||
3117 | |||
3118 | GNUNET_CONTAINER_DLL_remove (proto_head, proto_tail, pq); | ||
3119 | GNUNET_free (pq); | ||
3120 | } | ||
3121 | |||
3122 | |||
3123 | static struct ProtoQueue * | ||
3124 | create_proto_queue (struct GNUNET_NETWORK_Handle *sock, | ||
3125 | struct sockaddr *in, | ||
3126 | socklen_t addrlen) | ||
3127 | { | ||
3128 | struct ProtoQueue *pq = GNUNET_new (struct ProtoQueue); | ||
3129 | |||
3130 | if (NULL == sock) | ||
3131 | { | ||
3132 | // sock = GNUNET_CONNECTION_create_from_sockaddr (AF_INET, addr, addrlen); | ||
3133 | sock = GNUNET_NETWORK_socket_create (in->sa_family, SOCK_STREAM, 0); | ||
3134 | if (NULL == sock) | ||
3135 | { | ||
3136 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
3137 | "socket(%d) failed: %s", | ||
3138 | in->sa_family, | ||
3139 | strerror (errno)); | ||
3140 | GNUNET_free (in); | ||
3141 | GNUNET_free (pq); | ||
3142 | return NULL; | ||
3143 | } | ||
3144 | if ((GNUNET_OK != GNUNET_NETWORK_socket_connect (sock, in, addrlen)) && | ||
3145 | (errno != EINPROGRESS)) | ||
3146 | { | ||
3147 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
3148 | "connect to `%s' failed: %s", | ||
3149 | GNUNET_a2s (in, addrlen), | ||
3150 | strerror (errno)); | ||
3151 | GNUNET_NETWORK_socket_close (sock); | ||
3152 | GNUNET_free (in); | ||
3153 | GNUNET_free (pq); | ||
3154 | return NULL; | ||
3155 | } | ||
3156 | } | ||
3157 | pq->address_len = addrlen; | ||
3158 | pq->address = in; | ||
3159 | pq->timeout = GNUNET_TIME_relative_to_absolute (PROTO_QUEUE_TIMEOUT); | ||
3160 | pq->sock = sock; | ||
3161 | pq->read_task = GNUNET_SCHEDULER_add_read_net (PROTO_QUEUE_TIMEOUT, | ||
3162 | pq->sock, | ||
3163 | &proto_read_kx, | ||
3164 | pq); | ||
3165 | GNUNET_CONTAINER_DLL_insert (proto_head, proto_tail, pq); | ||
3166 | |||
3167 | return pq; | ||
3168 | } | ||
3169 | |||
3170 | |||
3171 | /** | ||
3172 | * We have been notified that our listen socket has something to | ||
3173 | * read. Do the read and reschedule this function to be called again | ||
3174 | * once more is available. | ||
3175 | * | ||
3176 | * @param cls ListenTask with listening socket and task | ||
3177 | */ | ||
3178 | static void | ||
3179 | listen_cb (void *cls) | ||
3180 | { | ||
3181 | struct sockaddr_storage in; | ||
3182 | socklen_t addrlen; | ||
3183 | struct GNUNET_NETWORK_Handle *sock; | ||
3184 | struct ListenTask *lt; | ||
3185 | struct sockaddr *in_addr; | ||
3186 | |||
3187 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3188 | "listen_cb\n"); | ||
3189 | |||
3190 | lt = cls; | ||
3191 | |||
3192 | lt->listen_task = NULL; | ||
3193 | GNUNET_assert (NULL != lt->listen_sock); | ||
3194 | addrlen = sizeof(in); | ||
3195 | memset (&in, 0, sizeof(in)); | ||
3196 | sock = GNUNET_NETWORK_socket_accept (lt->listen_sock, | ||
3197 | (struct sockaddr*) &in, | ||
3198 | &addrlen); | ||
3199 | if ((NULL == sock) && ((EMFILE == errno) || (ENFILE == errno))) | ||
3200 | return; /* system limit reached, wait until connection goes down */ | ||
3201 | lt->listen_task = GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
3202 | lt->listen_sock, | ||
3203 | &listen_cb, | ||
3204 | lt); | ||
3205 | if ((NULL == sock) && ((EAGAIN == errno) || (ENOBUFS == errno))) | ||
3206 | return; | ||
3207 | if (NULL == sock) | ||
3208 | { | ||
3209 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "accept"); | ||
3210 | return; | ||
3211 | } | ||
3212 | in_addr = GNUNET_memdup (&in, addrlen); | ||
3213 | create_proto_queue (sock, in_addr, addrlen); | ||
3214 | } | ||
3215 | |||
3216 | |||
3217 | static void | ||
3218 | try_connection_reversal (void *cls, | ||
3219 | const struct sockaddr *addr, | ||
3220 | socklen_t addrlen) | ||
3221 | { | ||
3222 | (void) cls; | ||
3223 | struct TCPNATProbeMessage pm; | ||
3224 | struct ProtoQueue *pq; | ||
3225 | struct sockaddr *in_addr; | ||
3226 | |||
3227 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3228 | "addr->sa_family %d\n", | ||
3229 | addr->sa_family); | ||
3230 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3231 | "Try to connect back\n"); | ||
3232 | in_addr = GNUNET_memdup (addr, addrlen); | ||
3233 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3234 | "in_addr->sa_family %d\n", | ||
3235 | in_addr->sa_family); | ||
3236 | pq = create_proto_queue (NULL, in_addr, addrlen); | ||
3237 | if (NULL != pq) | ||
3238 | { | ||
3239 | pm.header.size = htons (sizeof(struct TCPNATProbeMessage)); | ||
3240 | pm.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_TCP_NAT_PROBE); | ||
3241 | pm.clientIdentity = my_identity; | ||
3242 | memcpy (pq->write_buf, &pm, sizeof(struct TCPNATProbeMessage)); | ||
3243 | pq->write_off = sizeof(struct TCPNATProbeMessage); | ||
3244 | pq->write_task = GNUNET_SCHEDULER_add_write_net (PROTO_QUEUE_TIMEOUT, | ||
3245 | pq->sock, | ||
3246 | &proto_queue_write, | ||
3247 | pq); | ||
3248 | } | ||
3249 | else | ||
3250 | { | ||
3251 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
3252 | "Couldn't create ProtoQueue for sending TCPNATProbeMessage\n"); | ||
3253 | } | ||
3254 | } | ||
3255 | |||
3256 | |||
3257 | static void | ||
3258 | pending_reversal_timeout (void *cls) | ||
3259 | { | ||
3260 | struct sockaddr *in = cls; | ||
3261 | struct PendingReversal *pending_reversal; | ||
3262 | struct GNUNET_HashCode key; | ||
3263 | |||
3264 | GNUNET_CRYPTO_hash (in, | ||
3265 | sizeof(struct sockaddr), | ||
3266 | &key); | ||
3267 | pending_reversal = GNUNET_CONTAINER_multihashmap_get (pending_reversals, | ||
3268 | &key); | ||
3269 | |||
3270 | GNUNET_assert (NULL != pending_reversal); | ||
3271 | |||
3272 | if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_remove (pending_reversals, | ||
3273 | &key, | ||
3274 | pending_reversal)) | ||
3275 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
3276 | "No pending reversal found for address %s\n", | ||
3277 | GNUNET_a2s (in, sizeof (struct sockaddr))); | ||
3278 | GNUNET_free (pending_reversal->in); | ||
3279 | GNUNET_free (pending_reversal); | ||
3280 | } | ||
3281 | |||
3282 | |||
3283 | /** | ||
3284 | * Function called by the transport service to initialize a | ||
3285 | * message queue given address information about another peer. | ||
3286 | * If and when the communication channel is established, the | ||
3287 | * communicator must call #GNUNET_TRANSPORT_communicator_mq_add() | ||
3288 | * to notify the service that the channel is now up. It is | ||
3289 | * the responsibility of the communicator to manage sane | ||
3290 | * retries and timeouts for any @a peer/@a address combination | ||
3291 | * provided by the transport service. Timeouts and retries | ||
3292 | * do not need to be signalled to the transport service. | ||
3293 | * | ||
3294 | * @param cls closure | ||
3295 | * @param peer identity of the other peer | ||
3296 | * @param address where to send the message, human-readable | ||
3297 | * communicator-specific format, 0-terminated, UTF-8 | ||
3298 | * @return #GNUNET_OK on success, #GNUNET_SYSERR if the provided address is | ||
3299 | * invalid | ||
3300 | */ | ||
3301 | static int | ||
3302 | mq_init (void *cls, const struct GNUNET_PeerIdentity *peer, const char *address) | ||
3303 | { | ||
3304 | struct sockaddr *in; | ||
3305 | socklen_t in_len = 0; | ||
3306 | const char *path; | ||
3307 | struct sockaddr_in *v4; | ||
3308 | struct sockaddr_in6 *v6; | ||
3309 | unsigned int is_natd = GNUNET_NO; | ||
3310 | struct GNUNET_HashCode key; | ||
3311 | struct GNUNET_HashCode queue_map_key; | ||
3312 | struct GNUNET_HashContext *hsh; | ||
3313 | struct Queue *queue; | ||
3314 | |||
3315 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3316 | "Connecting to %s at %s\n", | ||
3317 | GNUNET_i2s (peer), | ||
3318 | address); | ||
3319 | if (0 != strncmp (address, | ||
3320 | COMMUNICATOR_ADDRESS_PREFIX "-", | ||
3321 | strlen (COMMUNICATOR_ADDRESS_PREFIX "-"))) | ||
3322 | { | ||
3323 | GNUNET_break_op (0); | ||
3324 | return GNUNET_SYSERR; | ||
3325 | } | ||
3326 | path = &address[strlen (COMMUNICATOR_ADDRESS_PREFIX "-")]; | ||
3327 | in = tcp_address_to_sockaddr (path, &in_len); | ||
3328 | |||
3329 | if (NULL == in) | ||
3330 | { | ||
3331 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
3332 | "Failed to setup TCP socket address\n"); | ||
3333 | return GNUNET_SYSERR; | ||
3334 | } | ||
3335 | |||
3336 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3337 | "in %s\n", | ||
3338 | GNUNET_a2s (in, in_len)); | ||
3339 | |||
3340 | hsh = GNUNET_CRYPTO_hash_context_start (); | ||
3341 | GNUNET_CRYPTO_hash_context_read (hsh, address, strlen (address)); | ||
3342 | GNUNET_CRYPTO_hash_context_read (hsh, peer, sizeof (*peer)); | ||
3343 | GNUNET_CRYPTO_hash_context_finish (hsh, &queue_map_key); | ||
3344 | queue = GNUNET_CONTAINER_multihashmap_get (queue_map, &queue_map_key); | ||
3345 | |||
3346 | if (NULL != queue) | ||
3347 | { | ||
3348 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3349 | "Queue for %s already exists or is in construction\n", address); | ||
3350 | GNUNET_free (in); | ||
3351 | return GNUNET_NO; | ||
3352 | } | ||
3353 | switch (in->sa_family) | ||
3354 | { | ||
3355 | case AF_INET: | ||
3356 | v4 = (struct sockaddr_in *) in; | ||
3357 | if (0 == v4->sin_port) | ||
3358 | { | ||
3359 | is_natd = GNUNET_YES; | ||
3360 | GNUNET_CRYPTO_hash (in, | ||
3361 | sizeof(struct sockaddr), | ||
3362 | &key); | ||
3363 | if (GNUNET_YES == GNUNET_CONTAINER_multihashmap_contains ( | ||
3364 | pending_reversals, | ||
3365 | &key)) | ||
3366 | { | ||
3367 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
3368 | "There is already a request reversal for `%s'at `%s'\n", | ||
3369 | GNUNET_i2s (peer), | ||
3370 | address); | ||
3371 | GNUNET_free (in); | ||
3372 | return GNUNET_SYSERR; | ||
3373 | } | ||
3374 | } | ||
3375 | break; | ||
3376 | |||
3377 | case AF_INET6: | ||
3378 | if (GNUNET_YES == disable_v6) | ||
3379 | { | ||
3380 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3381 | "IPv6 disabled, skipping %s\n", address); | ||
3382 | GNUNET_free (in); | ||
3383 | return GNUNET_SYSERR; | ||
3384 | } | ||
3385 | v6 = (struct sockaddr_in6 *) in; | ||
3386 | if (0 == v6->sin6_port) | ||
3387 | { | ||
3388 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
3389 | "Request reversal for `%s' at `%s' not possible for an IPv6 address\n", | ||
3390 | GNUNET_i2s (peer), | ||
3391 | address); | ||
3392 | GNUNET_free (in); | ||
3393 | return GNUNET_SYSERR; | ||
3394 | } | ||
3395 | break; | ||
3396 | |||
3397 | default: | ||
3398 | GNUNET_assert (0); | ||
3399 | } | ||
3400 | |||
3401 | if (GNUNET_YES == is_natd) | ||
3402 | { | ||
3403 | struct sockaddr_in local_sa; | ||
3404 | struct PendingReversal *pending_reversal; | ||
3405 | |||
3406 | memset (&local_sa, 0, sizeof(local_sa)); | ||
3407 | local_sa.sin_family = AF_INET; | ||
3408 | local_sa.sin_port = htons (bind_port); | ||
3409 | /* We leave sin_address at 0, let the kernel figure it out, | ||
3410 | even if our bind() is more specific. (May want to reconsider | ||
3411 | later.) */ | ||
3412 | if (GNUNET_OK != GNUNET_NAT_request_reversal (nat, &local_sa, v4)) | ||
3413 | { | ||
3414 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
3415 | "request reversal for `%s' at `%s' failed\n", | ||
3416 | GNUNET_i2s (peer), | ||
3417 | address); | ||
3418 | GNUNET_free (in); | ||
3419 | return GNUNET_SYSERR; | ||
3420 | } | ||
3421 | pending_reversal = GNUNET_new (struct PendingReversal); | ||
3422 | pending_reversal->in = in; | ||
3423 | GNUNET_assert (GNUNET_OK == | ||
3424 | GNUNET_CONTAINER_multihashmap_put (pending_reversals, | ||
3425 | &key, | ||
3426 | pending_reversal, | ||
3427 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)); | ||
3428 | pending_reversal->target = *peer; | ||
3429 | pending_reversal->timeout_task = GNUNET_SCHEDULER_add_delayed (NAT_TIMEOUT, | ||
3430 | & | ||
3431 | pending_reversal_timeout, | ||
3432 | in); | ||
3433 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3434 | "Created NAT WAIT connection to `%s' at `%s'\n", | ||
3435 | GNUNET_i2s (peer), | ||
3436 | GNUNET_a2s (in, sizeof (struct sockaddr))); | ||
3437 | } | ||
3438 | else | ||
3439 | { | ||
3440 | struct GNUNET_NETWORK_Handle *sock; | ||
3441 | |||
3442 | sock = GNUNET_NETWORK_socket_create (in->sa_family, SOCK_STREAM, | ||
3443 | IPPROTO_TCP); | ||
3444 | if (NULL == sock) | ||
3445 | { | ||
3446 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
3447 | "socket(%d) failed: %s", | ||
3448 | in->sa_family, | ||
3449 | strerror (errno)); | ||
3450 | GNUNET_free (in); | ||
3451 | return GNUNET_SYSERR; | ||
3452 | } | ||
3453 | if ((GNUNET_OK != GNUNET_NETWORK_socket_connect (sock, in, in_len)) && | ||
3454 | (errno != EINPROGRESS)) | ||
3455 | { | ||
3456 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
3457 | "connect to `%s' failed: %s", | ||
3458 | address, | ||
3459 | strerror (errno)); | ||
3460 | GNUNET_NETWORK_socket_close (sock); | ||
3461 | GNUNET_free (in); | ||
3462 | return GNUNET_SYSERR; | ||
3463 | } | ||
3464 | |||
3465 | queue = GNUNET_new (struct Queue); | ||
3466 | queue->target = *peer; | ||
3467 | queue->key = queue_map_key; | ||
3468 | queue->address = in; | ||
3469 | queue->address_len = in_len; | ||
3470 | queue->sock = sock; | ||
3471 | queue->cs = GNUNET_TRANSPORT_CS_OUTBOUND; | ||
3472 | boot_queue (queue); | ||
3473 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3474 | "booted queue with target %s\n", | ||
3475 | GNUNET_i2s (&queue->target)); | ||
3476 | // queue->mq_awaits_continue = GNUNET_YES; | ||
3477 | queue->read_task = | ||
3478 | GNUNET_SCHEDULER_add_read_net (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT, | ||
3479 | queue->sock, | ||
3480 | &queue_read_kx, | ||
3481 | queue); | ||
3482 | |||
3483 | |||
3484 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3485 | "start kx mq_init\n"); | ||
3486 | |||
3487 | start_initial_kx_out (queue); | ||
3488 | queue->write_task = | ||
3489 | GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
3490 | queue->sock, | ||
3491 | &queue_write, | ||
3492 | queue); | ||
3493 | } | ||
3494 | |||
3495 | return GNUNET_OK; | ||
3496 | } | ||
3497 | |||
3498 | |||
3499 | /** | ||
3500 | * Iterator over all ListenTasks to clean up. | ||
3501 | * | ||
3502 | * @param cls NULL | ||
3503 | * @param key unused | ||
3504 | * @param value the ListenTask to cancel. | ||
3505 | * @return #GNUNET_OK to continue to iterate | ||
3506 | */ | ||
3507 | static int | ||
3508 | get_lt_delete_it (void *cls, | ||
3509 | const struct GNUNET_HashCode *key, | ||
3510 | void *value) | ||
3511 | { | ||
3512 | struct ListenTask *lt = value; | ||
3513 | |||
3514 | (void) cls; | ||
3515 | (void) key; | ||
3516 | if (NULL != lt->listen_task) | ||
3517 | { | ||
3518 | GNUNET_SCHEDULER_cancel (lt->listen_task); | ||
3519 | lt->listen_task = NULL; | ||
3520 | } | ||
3521 | if (NULL != lt->listen_sock) | ||
3522 | { | ||
3523 | GNUNET_break (GNUNET_OK == GNUNET_NETWORK_socket_close (lt->listen_sock)); | ||
3524 | lt->listen_sock = NULL; | ||
3525 | } | ||
3526 | GNUNET_free (lt); | ||
3527 | return GNUNET_OK; | ||
3528 | } | ||
3529 | |||
3530 | |||
3531 | /** | ||
3532 | * Iterator over all message queues to clean up. | ||
3533 | * | ||
3534 | * @param cls NULL | ||
3535 | * @param target unused | ||
3536 | * @param value the queue to destroy | ||
3537 | * @return #GNUNET_OK to continue to iterate | ||
3538 | */ | ||
3539 | static int | ||
3540 | get_queue_delete_it (void *cls, | ||
3541 | const struct GNUNET_HashCode *target, | ||
3542 | void *value) | ||
3543 | { | ||
3544 | struct Queue *queue = value; | ||
3545 | |||
3546 | (void) cls; | ||
3547 | (void) target; | ||
3548 | queue_destroy (queue); | ||
3549 | return GNUNET_OK; | ||
3550 | } | ||
3551 | |||
3552 | |||
3553 | /** | ||
3554 | * Shutdown the UNIX communicator. | ||
3555 | * | ||
3556 | * @param cls NULL (always) | ||
3557 | */ | ||
3558 | static void | ||
3559 | do_shutdown (void *cls) | ||
3560 | { | ||
3561 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3562 | "Shutdown %s!\n", | ||
3563 | shutdown_running ? "running" : "not running"); | ||
3564 | |||
3565 | if (GNUNET_YES == shutdown_running) | ||
3566 | return; | ||
3567 | else | ||
3568 | shutdown_running = GNUNET_YES; | ||
3569 | |||
3570 | while (NULL != proto_head) | ||
3571 | free_proto_queue (proto_head); | ||
3572 | if (NULL != nat) | ||
3573 | { | ||
3574 | GNUNET_NAT_unregister (nat); | ||
3575 | nat = NULL; | ||
3576 | } | ||
3577 | GNUNET_CONTAINER_multihashmap_iterate (pending_reversals, | ||
3578 | &pending_reversals_delete_it, NULL); | ||
3579 | GNUNET_CONTAINER_multihashmap_destroy (pending_reversals); | ||
3580 | GNUNET_CONTAINER_multihashmap_iterate (lt_map, &get_lt_delete_it, NULL); | ||
3581 | GNUNET_CONTAINER_multihashmap_destroy (lt_map); | ||
3582 | GNUNET_CONTAINER_multihashmap_iterate (queue_map, &get_queue_delete_it, NULL); | ||
3583 | GNUNET_CONTAINER_multihashmap_destroy (queue_map); | ||
3584 | if (NULL != ch) | ||
3585 | { | ||
3586 | GNUNET_TRANSPORT_communicator_address_remove_all (ch); | ||
3587 | GNUNET_TRANSPORT_communicator_disconnect (ch); | ||
3588 | ch = NULL; | ||
3589 | } | ||
3590 | if (NULL != stats) | ||
3591 | { | ||
3592 | GNUNET_STATISTICS_destroy (stats, GNUNET_YES); | ||
3593 | stats = NULL; | ||
3594 | } | ||
3595 | if (NULL != my_private_key) | ||
3596 | { | ||
3597 | GNUNET_free (my_private_key); | ||
3598 | my_private_key = NULL; | ||
3599 | } | ||
3600 | if (NULL != is) | ||
3601 | { | ||
3602 | GNUNET_NT_scanner_done (is); | ||
3603 | is = NULL; | ||
3604 | } | ||
3605 | if (NULL != peerstore) | ||
3606 | { | ||
3607 | GNUNET_PEERSTORE_disconnect (peerstore); | ||
3608 | peerstore = NULL; | ||
3609 | } | ||
3610 | if (NULL != resolve_request_handle) | ||
3611 | { | ||
3612 | GNUNET_RESOLVER_request_cancel (resolve_request_handle); | ||
3613 | resolve_request_handle = NULL; | ||
3614 | } | ||
3615 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3616 | "Shutdown done!\n"); | ||
3617 | } | ||
3618 | |||
3619 | |||
3620 | /** | ||
3621 | * Function called when the transport service has received an | ||
3622 | * acknowledgement for this communicator (!) via a different return | ||
3623 | * path. | ||
3624 | * | ||
3625 | * Not applicable for TCP. | ||
3626 | * | ||
3627 | * @param cls closure | ||
3628 | * @param sender which peer sent the notification | ||
3629 | * @param msg payload | ||
3630 | */ | ||
3631 | static void | ||
3632 | enc_notify_cb (void *cls, | ||
3633 | const struct GNUNET_PeerIdentity *sender, | ||
3634 | const struct GNUNET_MessageHeader *msg) | ||
3635 | { | ||
3636 | (void) cls; | ||
3637 | (void) sender; | ||
3638 | (void) msg; | ||
3639 | GNUNET_break_op (0); | ||
3640 | } | ||
3641 | |||
3642 | |||
3643 | /** | ||
3644 | * Signature of the callback passed to #GNUNET_NAT_register() for | ||
3645 | * a function to call whenever our set of 'valid' addresses changes. | ||
3646 | * | ||
3647 | * @param cls closure | ||
3648 | * @param[in,out] app_ctx location where the app can store stuff | ||
3649 | * on add and retrieve it on remove | ||
3650 | * @param add_remove #GNUNET_YES to add a new public IP address, | ||
3651 | * #GNUNET_NO to remove a previous (now invalid) one | ||
3652 | * @param ac address class the address belongs to | ||
3653 | * @param addr either the previous or the new public IP address | ||
3654 | * @param addrlen actual length of the @a addr | ||
3655 | */ | ||
3656 | static void | ||
3657 | nat_address_cb (void *cls, | ||
3658 | void **app_ctx, | ||
3659 | int add_remove, | ||
3660 | enum GNUNET_NAT_AddressClass ac, | ||
3661 | const struct sockaddr *addr, | ||
3662 | socklen_t addrlen) | ||
3663 | { | ||
3664 | char *my_addr; | ||
3665 | struct GNUNET_TRANSPORT_AddressIdentifier *ai; | ||
3666 | |||
3667 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3668 | "nat address cb %s %s\n", | ||
3669 | add_remove ? "add" : "remove", | ||
3670 | GNUNET_a2s (addr, addrlen)); | ||
3671 | |||
3672 | if (GNUNET_YES == add_remove) | ||
3673 | { | ||
3674 | enum GNUNET_NetworkType nt; | ||
3675 | |||
3676 | GNUNET_asprintf (&my_addr, | ||
3677 | "%s-%s", | ||
3678 | COMMUNICATOR_ADDRESS_PREFIX, | ||
3679 | GNUNET_a2s (addr, addrlen)); | ||
3680 | nt = GNUNET_NT_scanner_get_type (is, addr, addrlen); | ||
3681 | ai = | ||
3682 | GNUNET_TRANSPORT_communicator_address_add (ch, | ||
3683 | my_addr, | ||
3684 | nt, | ||
3685 | GNUNET_TIME_UNIT_FOREVER_REL); | ||
3686 | GNUNET_free (my_addr); | ||
3687 | *app_ctx = ai; | ||
3688 | } | ||
3689 | else | ||
3690 | { | ||
3691 | ai = *app_ctx; | ||
3692 | GNUNET_TRANSPORT_communicator_address_remove (ai); | ||
3693 | *app_ctx = NULL; | ||
3694 | } | ||
3695 | } | ||
3696 | |||
3697 | |||
3698 | /** | ||
3699 | * This method adds addresses to the DLL, that are later register at the NAT service. | ||
3700 | */ | ||
3701 | static void | ||
3702 | add_addr (struct sockaddr *in, socklen_t in_len) | ||
3703 | { | ||
3704 | |||
3705 | struct Addresses *saddrs; | ||
3706 | |||
3707 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3708 | "add address %s\n", | ||
3709 | GNUNET_a2s (in, in_len)); | ||
3710 | |||
3711 | saddrs = GNUNET_new (struct Addresses); | ||
3712 | saddrs->addr = in; | ||
3713 | saddrs->addr_len = in_len; | ||
3714 | GNUNET_CONTAINER_DLL_insert (addrs_head, addrs_tail, saddrs); | ||
3715 | |||
3716 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3717 | "after add address %s\n", | ||
3718 | GNUNET_a2s (in, in_len)); | ||
3719 | |||
3720 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3721 | "add address %s\n", | ||
3722 | GNUNET_a2s (saddrs->addr, saddrs->addr_len)); | ||
3723 | |||
3724 | addrs_lens++; | ||
3725 | } | ||
3726 | |||
3727 | |||
3728 | /** | ||
3729 | * This method launch network interactions for each address we like to bind to. | ||
3730 | * | ||
3731 | * @param addr The address we will listen to. | ||
3732 | * @param in_len The length of the address we will listen to. | ||
3733 | * @return GNUNET_SYSERR in case of error. GNUNET_OK in case we are successfully listen to the address. | ||
3734 | */ | ||
3735 | static int | ||
3736 | init_socket (struct sockaddr *addr, | ||
3737 | socklen_t in_len) | ||
3738 | { | ||
3739 | struct sockaddr_storage in_sto; | ||
3740 | socklen_t sto_len; | ||
3741 | struct GNUNET_NETWORK_Handle *listen_sock; | ||
3742 | struct ListenTask *lt; | ||
3743 | int sockfd; | ||
3744 | struct GNUNET_HashCode h_sock; | ||
3745 | |||
3746 | if (NULL == addr) | ||
3747 | { | ||
3748 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
3749 | "Address is NULL.\n"); | ||
3750 | return GNUNET_SYSERR; | ||
3751 | } | ||
3752 | |||
3753 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3754 | "address %s\n", | ||
3755 | GNUNET_a2s (addr, in_len)); | ||
3756 | |||
3757 | listen_sock = | ||
3758 | GNUNET_NETWORK_socket_create (addr->sa_family, SOCK_STREAM, IPPROTO_TCP); | ||
3759 | if (NULL == listen_sock) | ||
3760 | { | ||
3761 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "socket"); | ||
3762 | return GNUNET_SYSERR; | ||
3763 | } | ||
3764 | |||
3765 | if (GNUNET_OK != GNUNET_NETWORK_socket_bind (listen_sock, addr, in_len)) | ||
3766 | { | ||
3767 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "bind"); | ||
3768 | GNUNET_NETWORK_socket_close (listen_sock); | ||
3769 | listen_sock = NULL; | ||
3770 | return GNUNET_SYSERR; | ||
3771 | } | ||
3772 | |||
3773 | if (GNUNET_OK != | ||
3774 | GNUNET_NETWORK_socket_listen (listen_sock, | ||
3775 | 5)) | ||
3776 | { | ||
3777 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, | ||
3778 | "listen"); | ||
3779 | GNUNET_NETWORK_socket_close (listen_sock); | ||
3780 | listen_sock = NULL; | ||
3781 | return GNUNET_SYSERR; | ||
3782 | } | ||
3783 | |||
3784 | /* We might have bound to port 0, allowing the OS to figure it out; | ||
3785 | thus, get the real IN-address from the socket */ | ||
3786 | sto_len = sizeof(in_sto); | ||
3787 | |||
3788 | if (0 != getsockname (GNUNET_NETWORK_get_fd (listen_sock), | ||
3789 | (struct sockaddr *) &in_sto, | ||
3790 | &sto_len)) | ||
3791 | { | ||
3792 | memcpy (&in_sto, addr, in_len); | ||
3793 | sto_len = in_len; | ||
3794 | } | ||
3795 | |||
3796 | // addr = (struct sockaddr *) &in_sto; | ||
3797 | in_len = sto_len; | ||
3798 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3799 | "Bound to `%s'\n", | ||
3800 | GNUNET_a2s ((const struct sockaddr *) &in_sto, sto_len)); | ||
3801 | if (NULL == stats) | ||
3802 | stats = GNUNET_STATISTICS_create ("communicator-tcp", cfg); | ||
3803 | |||
3804 | if (NULL == is) | ||
3805 | is = GNUNET_NT_scanner_init (); | ||
3806 | |||
3807 | if (NULL == my_private_key) | ||
3808 | my_private_key = GNUNET_CRYPTO_eddsa_key_create_from_configuration (cfg); | ||
3809 | if (NULL == my_private_key) | ||
3810 | { | ||
3811 | GNUNET_log ( | ||
3812 | GNUNET_ERROR_TYPE_ERROR, | ||
3813 | _ ( | ||
3814 | "Transport service is lacking key configuration settings. Exiting.\n")); | ||
3815 | if (NULL != resolve_request_handle) | ||
3816 | GNUNET_RESOLVER_request_cancel (resolve_request_handle); | ||
3817 | GNUNET_SCHEDULER_shutdown (); | ||
3818 | return GNUNET_SYSERR; | ||
3819 | } | ||
3820 | GNUNET_CRYPTO_eddsa_key_get_public (my_private_key, &my_identity.public_key); | ||
3821 | /* start listening */ | ||
3822 | |||
3823 | lt = GNUNET_new (struct ListenTask); | ||
3824 | lt->listen_sock = listen_sock; | ||
3825 | |||
3826 | lt->listen_task = GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
3827 | listen_sock, | ||
3828 | &listen_cb, | ||
3829 | lt); | ||
3830 | |||
3831 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3832 | "creating hash\n"); | ||
3833 | sockfd = GNUNET_NETWORK_get_fd (lt->listen_sock); | ||
3834 | GNUNET_CRYPTO_hash (&sockfd, | ||
3835 | sizeof(int), | ||
3836 | &h_sock); | ||
3837 | |||
3838 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3839 | "creating map\n"); | ||
3840 | if (NULL == lt_map) | ||
3841 | lt_map = GNUNET_CONTAINER_multihashmap_create (2, GNUNET_NO); | ||
3842 | |||
3843 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3844 | "creating map entry\n"); | ||
3845 | GNUNET_assert (GNUNET_OK == | ||
3846 | GNUNET_CONTAINER_multihashmap_put (lt_map, | ||
3847 | &h_sock, | ||
3848 | lt, | ||
3849 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)); | ||
3850 | |||
3851 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3852 | "map entry created\n"); | ||
3853 | |||
3854 | if (NULL == queue_map) | ||
3855 | queue_map = GNUNET_CONTAINER_multihashmap_create (10, GNUNET_NO); | ||
3856 | |||
3857 | if (NULL == ch) | ||
3858 | ch = GNUNET_TRANSPORT_communicator_connect (cfg, | ||
3859 | COMMUNICATOR_CONFIG_SECTION, | ||
3860 | COMMUNICATOR_ADDRESS_PREFIX, | ||
3861 | GNUNET_TRANSPORT_CC_RELIABLE, | ||
3862 | &mq_init, | ||
3863 | NULL, | ||
3864 | &enc_notify_cb, | ||
3865 | NULL); | ||
3866 | |||
3867 | if (NULL == ch) | ||
3868 | { | ||
3869 | GNUNET_break (0); | ||
3870 | if (NULL != resolve_request_handle) | ||
3871 | GNUNET_RESOLVER_request_cancel (resolve_request_handle); | ||
3872 | GNUNET_SCHEDULER_shutdown (); | ||
3873 | return GNUNET_SYSERR; | ||
3874 | } | ||
3875 | |||
3876 | add_addr (addr, in_len); | ||
3877 | return GNUNET_OK; | ||
3878 | |||
3879 | } | ||
3880 | |||
3881 | |||
3882 | /** | ||
3883 | * This method reads from the DLL addrs_head to register them at the NAT service. | ||
3884 | */ | ||
3885 | static void | ||
3886 | nat_register () | ||
3887 | { | ||
3888 | struct sockaddr **saddrs; | ||
3889 | socklen_t *saddr_lens; | ||
3890 | int i; | ||
3891 | size_t len; | ||
3892 | |||
3893 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3894 | "starting nat register!\n"); | ||
3895 | len = 0; | ||
3896 | i = 0; | ||
3897 | saddrs = GNUNET_malloc ((addrs_lens) * sizeof(struct sockaddr *)); | ||
3898 | saddr_lens = GNUNET_malloc ((addrs_lens) * sizeof(socklen_t)); | ||
3899 | for (struct Addresses *pos = addrs_head; NULL != pos; pos = pos->next) | ||
3900 | { | ||
3901 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3902 | "registering address %s\n", | ||
3903 | GNUNET_a2s (addrs_head->addr, addrs_head->addr_len)); | ||
3904 | |||
3905 | saddr_lens[i] = addrs_head->addr_len; | ||
3906 | len += saddr_lens[i]; | ||
3907 | saddrs[i] = GNUNET_memdup (addrs_head->addr, saddr_lens[i]); | ||
3908 | i++; | ||
3909 | } | ||
3910 | |||
3911 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3912 | "registering addresses %lu %lu %lu %lu\n", | ||
3913 | (addrs_lens) * sizeof(struct sockaddr *), | ||
3914 | (addrs_lens) * sizeof(socklen_t), | ||
3915 | len, | ||
3916 | sizeof(COMMUNICATOR_CONFIG_SECTION)); | ||
3917 | nat = GNUNET_NAT_register (cfg, | ||
3918 | COMMUNICATOR_CONFIG_SECTION, | ||
3919 | IPPROTO_TCP, | ||
3920 | addrs_lens, | ||
3921 | (const struct sockaddr **) saddrs, | ||
3922 | saddr_lens, | ||
3923 | &nat_address_cb, | ||
3924 | try_connection_reversal, | ||
3925 | NULL /* closure */); | ||
3926 | for (i = addrs_lens - 1; i >= 0; i--) | ||
3927 | GNUNET_free (saddrs[i]); | ||
3928 | GNUNET_free (saddrs); | ||
3929 | GNUNET_free (saddr_lens); | ||
3930 | |||
3931 | if (NULL == nat) | ||
3932 | { | ||
3933 | GNUNET_break (0); | ||
3934 | if (NULL != resolve_request_handle) | ||
3935 | GNUNET_RESOLVER_request_cancel (resolve_request_handle); | ||
3936 | GNUNET_SCHEDULER_shutdown (); | ||
3937 | } | ||
3938 | } | ||
3939 | |||
3940 | |||
3941 | /** | ||
3942 | * This method is the callback called by the resolver API, and wraps method init_socket. | ||
3943 | * | ||
3944 | * @param cls The port we will bind to. | ||
3945 | * @param addr The address we will bind to. | ||
3946 | * @param in_len The length of the address we will bind to. | ||
3947 | */ | ||
3948 | static void | ||
3949 | init_socket_resolv (void *cls, | ||
3950 | const struct sockaddr *addr, | ||
3951 | socklen_t in_len) | ||
3952 | { | ||
3953 | struct sockaddr_in *v4; | ||
3954 | struct sockaddr_in6 *v6; | ||
3955 | struct sockaddr *in; | ||
3956 | |||
3957 | (void) cls; | ||
3958 | if (NULL != addr) | ||
3959 | { | ||
3960 | if (AF_INET == addr->sa_family) | ||
3961 | { | ||
3962 | v4 = (struct sockaddr_in *) addr; | ||
3963 | in = tcp_address_to_sockaddr_numeric_v4 (&in_len, *v4, bind_port);// _global); | ||
3964 | } | ||
3965 | else if (AF_INET6 == addr->sa_family) | ||
3966 | { | ||
3967 | v6 = (struct sockaddr_in6 *) addr; | ||
3968 | in = tcp_address_to_sockaddr_numeric_v6 (&in_len, *v6, bind_port);// _global); | ||
3969 | } | ||
3970 | else | ||
3971 | { | ||
3972 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
3973 | "Address family %u not suitable (not AF_INET %u nor AF_INET6 %u \n", | ||
3974 | addr->sa_family, | ||
3975 | AF_INET, | ||
3976 | AF_INET6); | ||
3977 | return; | ||
3978 | } | ||
3979 | init_socket (in, in_len); | ||
3980 | } | ||
3981 | else | ||
3982 | { | ||
3983 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
3984 | "Address is NULL. This might be an error or the resolver finished resolving.\n"); | ||
3985 | if (NULL == addrs_head) | ||
3986 | { | ||
3987 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
3988 | "Resolver finished resolving, but we do not listen to an address!.\n"); | ||
3989 | return; | ||
3990 | } | ||
3991 | nat_register (); | ||
3992 | } | ||
3993 | } | ||
3994 | |||
3995 | |||
3996 | /** | ||
3997 | * Setup communicator and launch network interactions. | ||
3998 | * | ||
3999 | * @param cls NULL (always) | ||
4000 | * @param args remaining command-line arguments | ||
4001 | * @param cfgfile name of the configuration file used (for saving, can be NULL!) | ||
4002 | * @param c configuration | ||
4003 | */ | ||
4004 | static void | ||
4005 | run (void *cls, | ||
4006 | char *const *args, | ||
4007 | const char *cfgfile, | ||
4008 | const struct GNUNET_CONFIGURATION_Handle *c) | ||
4009 | { | ||
4010 | char *bindto; | ||
4011 | struct sockaddr *in; | ||
4012 | socklen_t in_len; | ||
4013 | struct sockaddr_in v4; | ||
4014 | struct sockaddr_in6 v6; | ||
4015 | char *start; | ||
4016 | unsigned int port; | ||
4017 | char dummy[2]; | ||
4018 | char *rest = NULL; | ||
4019 | struct PortOnlyIpv4Ipv6 *po; | ||
4020 | socklen_t addr_len_ipv4; | ||
4021 | socklen_t addr_len_ipv6; | ||
4022 | |||
4023 | (void) cls; | ||
4024 | |||
4025 | pending_reversals = GNUNET_CONTAINER_multihashmap_create (16, GNUNET_NO); | ||
4026 | memset (&v4,0,sizeof(struct sockaddr_in)); | ||
4027 | memset (&v6,0,sizeof(struct sockaddr_in6)); | ||
4028 | cfg = c; | ||
4029 | if (GNUNET_OK != | ||
4030 | GNUNET_CONFIGURATION_get_value_string (cfg, | ||
4031 | COMMUNICATOR_CONFIG_SECTION, | ||
4032 | "BINDTO", | ||
4033 | &bindto)) | ||
4034 | { | ||
4035 | GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR, | ||
4036 | COMMUNICATOR_CONFIG_SECTION, | ||
4037 | "BINDTO"); | ||
4038 | return; | ||
4039 | } | ||
4040 | if (GNUNET_OK != | ||
4041 | GNUNET_CONFIGURATION_get_value_number (cfg, | ||
4042 | COMMUNICATOR_CONFIG_SECTION, | ||
4043 | "MAX_QUEUE_LENGTH", | ||
4044 | &max_queue_length)) | ||
4045 | { | ||
4046 | max_queue_length = DEFAULT_MAX_QUEUE_LENGTH; | ||
4047 | } | ||
4048 | if (GNUNET_OK != | ||
4049 | GNUNET_CONFIGURATION_get_value_time (cfg, | ||
4050 | COMMUNICATOR_CONFIG_SECTION, | ||
4051 | "REKEY_INTERVAL", | ||
4052 | &rekey_interval)) | ||
4053 | { | ||
4054 | rekey_interval = DEFAULT_REKEY_INTERVAL; | ||
4055 | } | ||
4056 | if (GNUNET_OK != | ||
4057 | GNUNET_CONFIGURATION_get_value_number (cfg, | ||
4058 | COMMUNICATOR_CONFIG_SECTION, | ||
4059 | "REKEY_MAX_BYTES", | ||
4060 | &rekey_max_bytes)) | ||
4061 | { | ||
4062 | rekey_max_bytes = REKEY_MAX_BYTES; | ||
4063 | } | ||
4064 | disable_v6 = GNUNET_NO; | ||
4065 | if ((GNUNET_NO == GNUNET_NETWORK_test_pf (PF_INET6)) || | ||
4066 | (GNUNET_YES == | ||
4067 | GNUNET_CONFIGURATION_get_value_yesno (cfg, | ||
4068 | COMMUNICATOR_CONFIG_SECTION, | ||
4069 | "DISABLE_V6"))) | ||
4070 | { | ||
4071 | disable_v6 = GNUNET_YES; | ||
4072 | } | ||
4073 | peerstore = GNUNET_PEERSTORE_connect (cfg); | ||
4074 | if (NULL == peerstore) | ||
4075 | { | ||
4076 | GNUNET_free (bindto); | ||
4077 | GNUNET_break (0); | ||
4078 | GNUNET_SCHEDULER_shutdown (); | ||
4079 | return; | ||
4080 | } | ||
4081 | |||
4082 | GNUNET_SCHEDULER_add_shutdown (&do_shutdown, NULL); | ||
4083 | |||
4084 | if (1 == sscanf (bindto, "%u%1s", &bind_port, dummy)) | ||
4085 | { | ||
4086 | po = tcp_address_to_sockaddr_port_only (bindto, &bind_port); | ||
4087 | addr_len_ipv4 = po->addr_len_ipv4; | ||
4088 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4089 | "address po %s\n", | ||
4090 | GNUNET_a2s (po->addr_ipv4, addr_len_ipv4)); | ||
4091 | if (NULL != po->addr_ipv4) | ||
4092 | { | ||
4093 | init_socket (po->addr_ipv4, addr_len_ipv4); | ||
4094 | } | ||
4095 | if (NULL != po->addr_ipv6) | ||
4096 | { | ||
4097 | addr_len_ipv6 = po->addr_len_ipv6; | ||
4098 | init_socket (po->addr_ipv6, addr_len_ipv6); | ||
4099 | } | ||
4100 | GNUNET_free (po); | ||
4101 | nat_register (); | ||
4102 | GNUNET_free (bindto); | ||
4103 | return; | ||
4104 | } | ||
4105 | |||
4106 | start = extract_address (bindto); | ||
4107 | // FIXME: check for NULL == start... | ||
4108 | if (1 == inet_pton (AF_INET, start, &v4.sin_addr)) | ||
4109 | { | ||
4110 | bind_port = extract_port (bindto); | ||
4111 | |||
4112 | in = tcp_address_to_sockaddr_numeric_v4 (&in_len, v4, bind_port); | ||
4113 | init_socket (in, in_len); | ||
4114 | nat_register (); | ||
4115 | GNUNET_free (start); | ||
4116 | GNUNET_free (bindto); | ||
4117 | return; | ||
4118 | } | ||
4119 | |||
4120 | if (1 == inet_pton (AF_INET6, start, &v6.sin6_addr)) | ||
4121 | { | ||
4122 | bind_port = extract_port (bindto); | ||
4123 | in = tcp_address_to_sockaddr_numeric_v6 (&in_len, v6, bind_port); | ||
4124 | init_socket (in, in_len); | ||
4125 | nat_register (); | ||
4126 | GNUNET_free (start); | ||
4127 | GNUNET_free (bindto); | ||
4128 | return; | ||
4129 | } | ||
4130 | |||
4131 | bind_port = extract_port (bindto); | ||
4132 | resolve_request_handle = GNUNET_RESOLVER_ip_get (strtok_r (bindto, | ||
4133 | ":", | ||
4134 | &rest), | ||
4135 | AF_UNSPEC, | ||
4136 | GNUNET_TIME_UNIT_MINUTES, | ||
4137 | &init_socket_resolv, | ||
4138 | &port); | ||
4139 | |||
4140 | GNUNET_free (bindto); | ||
4141 | GNUNET_free (start); | ||
4142 | } | ||
4143 | |||
4144 | |||
4145 | /** | ||
4146 | * The main function for the UNIX communicator. | ||
4147 | * | ||
4148 | * @param argc number of arguments from the command line | ||
4149 | * @param argv command line arguments | ||
4150 | * @return 0 ok, 1 on error | ||
4151 | */ | ||
4152 | int | ||
4153 | main (int argc, char *const *argv) | ||
4154 | { | ||
4155 | static const struct GNUNET_GETOPT_CommandLineOption options[] = { | ||
4156 | GNUNET_GETOPT_OPTION_END | ||
4157 | }; | ||
4158 | int ret; | ||
4159 | |||
4160 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4161 | "Starting tcp communicator\n"); | ||
4162 | if (GNUNET_OK != | ||
4163 | GNUNET_STRINGS_get_utf8_args (argc, argv, | ||
4164 | &argc, &argv)) | ||
4165 | return 2; | ||
4166 | |||
4167 | ret = (GNUNET_OK == | ||
4168 | GNUNET_PROGRAM_run (argc, | ||
4169 | argv, | ||
4170 | "gnunet-communicator-tcp", | ||
4171 | _ ("GNUnet TCP communicator"), | ||
4172 | options, | ||
4173 | &run, | ||
4174 | NULL)) | ||
4175 | ? 0 | ||
4176 | : 1; | ||
4177 | GNUNET_free_nz ((void *) argv); | ||
4178 | return ret; | ||
4179 | } | ||
4180 | |||
4181 | |||
4182 | /* end of gnunet-communicator-tcp.c */ | ||
diff --git a/src/service/transport/gnunet-communicator-udp.c b/src/service/transport/gnunet-communicator-udp.c new file mode 100644 index 000000000..fa5294218 --- /dev/null +++ b/src/service/transport/gnunet-communicator-udp.c | |||
@@ -0,0 +1,3665 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2010-2014, 2018, 2019 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | : | ||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/gnunet-communicator-udp.c | ||
23 | * @brief Transport plugin using UDP. | ||
24 | * @author Christian Grothoff | ||
25 | * | ||
26 | * TODO: | ||
27 | * - consider imposing transmission limits in the absence | ||
28 | * of ACKs; or: maybe this should be done at TNG service level? | ||
29 | * (at least the receiver might want to enforce limits on | ||
30 | * KX/DH operations per sender in here) (#5552) | ||
31 | * - overall, we should look more into flow control support | ||
32 | * (either in backchannel, or general solution in TNG service) | ||
33 | * - handle addresses discovered from broadcasts (#5551) | ||
34 | * (think: what was the story again on address validation? | ||
35 | * where is the API for that!?!) | ||
36 | * - support DNS names in BINDTO option (#5528) | ||
37 | * - support NAT connection reversal method (#5529) | ||
38 | * - support other UDP-specific NAT traversal methods (#) | ||
39 | */ | ||
40 | #include "platform.h" | ||
41 | #include "gnunet_common.h" | ||
42 | #include "gnunet_util_lib.h" | ||
43 | #include "gnunet_protocols.h" | ||
44 | #include "gnunet_signatures.h" | ||
45 | #include "gnunet_constants.h" | ||
46 | #include "gnunet_nat_service.h" | ||
47 | #include "gnunet_statistics_service.h" | ||
48 | #include "gnunet_transport_application_service.h" | ||
49 | #include "gnunet_transport_communication_service.h" | ||
50 | |||
51 | /** | ||
52 | * How often do we rekey based on time (at least) | ||
53 | */ | ||
54 | #define DEFAULT_REKEY_TIME_INTERVAL GNUNET_TIME_UNIT_DAYS | ||
55 | |||
56 | /** | ||
57 | * How long do we wait until we must have received the initial KX? | ||
58 | */ | ||
59 | #define PROTO_QUEUE_TIMEOUT GNUNET_TIME_UNIT_MINUTES | ||
60 | |||
61 | /** | ||
62 | * How often do we broadcast our presence on the LAN? | ||
63 | */ | ||
64 | #define BROADCAST_FREQUENCY GNUNET_TIME_UNIT_MINUTES | ||
65 | |||
66 | /** | ||
67 | * How often do we scan for changes to our network interfaces? | ||
68 | */ | ||
69 | #define INTERFACE_SCAN_FREQUENCY \ | ||
70 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 5) | ||
71 | |||
72 | /** | ||
73 | * How long do we believe our addresses to remain up (before | ||
74 | * the other peer should revalidate). | ||
75 | */ | ||
76 | #define ADDRESS_VALIDITY_PERIOD GNUNET_TIME_UNIT_HOURS | ||
77 | |||
78 | #define WORKING_QUEUE_INTERVALL \ | ||
79 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MICROSECONDS,1) | ||
80 | |||
81 | /** | ||
82 | * AES key size. | ||
83 | */ | ||
84 | #define AES_KEY_SIZE (256 / 8) | ||
85 | |||
86 | /** | ||
87 | * AES (GCM) IV size. | ||
88 | */ | ||
89 | #define AES_IV_SIZE (96 / 8) | ||
90 | |||
91 | /** | ||
92 | * Size of the GCM tag. | ||
93 | */ | ||
94 | #define GCM_TAG_SIZE (128 / 8) | ||
95 | |||
96 | #define GENERATE_AT_ONCE 64 | ||
97 | |||
98 | /** | ||
99 | * If we fall below this number of available KCNs, | ||
100 | * we generate additional ACKs until we reach | ||
101 | * #KCN_TARGET. | ||
102 | * Should be large enough that we don't generate ACKs all | ||
103 | * the time and still have enough time for the ACK to | ||
104 | * arrive before the sender runs out. So really this | ||
105 | * should ideally be based on the RTT. | ||
106 | */ | ||
107 | #define KCN_THRESHOLD 96 | ||
108 | |||
109 | /** | ||
110 | * How many KCNs do we keep around *after* we hit | ||
111 | * the #KCN_THRESHOLD? Should be larger than | ||
112 | * #KCN_THRESHOLD so we do not generate just one | ||
113 | * ACK at the time. | ||
114 | */ | ||
115 | #define KCN_TARGET 128 | ||
116 | |||
117 | /** | ||
118 | * What is the maximum delta between KCN sequence numbers | ||
119 | * that we allow. Used to expire 'ancient' KCNs that likely | ||
120 | * were dropped by the network. Must be larger than | ||
121 | * KCN_TARGET (otherwise we generate new KCNs all the time), | ||
122 | * but not too large (otherwise packet loss may cause | ||
123 | * sender to fall back to KX needlessly when sender runs | ||
124 | * out of ACK'ed KCNs due to losses). | ||
125 | */ | ||
126 | #define MAX_SQN_DELTA 160 | ||
127 | |||
128 | /** | ||
129 | * How many shared master secrets do we keep around | ||
130 | * at most per sender? Should be large enough so | ||
131 | * that we generally have a chance of sending an ACK | ||
132 | * before the sender already rotated out the master | ||
133 | * secret. Generally values around #KCN_TARGET make | ||
134 | * sense. Might make sense to adapt to RTT if we had | ||
135 | * a good measurement... | ||
136 | */ | ||
137 | #define MAX_SECRETS 256 | ||
138 | |||
139 | /** | ||
140 | * Default value for how often we do rekey based on number of bytes transmitted? | ||
141 | * (additionally randomized). | ||
142 | */ | ||
143 | #define DEFAULT_REKEY_MAX_BYTES (1024LLU * 1024 * 1024 * 4LLU) | ||
144 | |||
145 | /** | ||
146 | * Address prefix used by the communicator. | ||
147 | */ | ||
148 | |||
149 | #define COMMUNICATOR_ADDRESS_PREFIX "udp" | ||
150 | |||
151 | /** | ||
152 | * Configuration section used by the communicator. | ||
153 | */ | ||
154 | #define COMMUNICATOR_CONFIG_SECTION "communicator-udp" | ||
155 | |||
156 | GNUNET_NETWORK_STRUCT_BEGIN | ||
157 | |||
158 | |||
159 | /** | ||
160 | * Signature we use to verify that the ephemeral key was really chosen by | ||
161 | * the specified sender. If possible, the receiver should respond with | ||
162 | * a `struct UDPAck` (possibly via backchannel). | ||
163 | */ | ||
164 | struct UdpHandshakeSignature | ||
165 | { | ||
166 | /** | ||
167 | * Purpose must be #GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_UDP_HANDSHAKE | ||
168 | */ | ||
169 | struct GNUNET_CRYPTO_EccSignaturePurpose purpose; | ||
170 | |||
171 | /** | ||
172 | * Identity of the inititor of the UDP connection (UDP client). | ||
173 | */ | ||
174 | struct GNUNET_PeerIdentity sender; | ||
175 | |||
176 | /** | ||
177 | * Presumed identity of the target of the UDP connection (UDP server) | ||
178 | */ | ||
179 | struct GNUNET_PeerIdentity receiver; | ||
180 | |||
181 | /** | ||
182 | * Ephemeral key used by the @e sender. | ||
183 | */ | ||
184 | struct GNUNET_CRYPTO_EcdhePublicKey ephemeral; | ||
185 | |||
186 | /** | ||
187 | * Monotonic time of @e sender, to possibly help detect replay attacks | ||
188 | * (if receiver persists times by sender). | ||
189 | */ | ||
190 | struct GNUNET_TIME_AbsoluteNBO monotonic_time; | ||
191 | }; | ||
192 | |||
193 | |||
194 | /** | ||
195 | * "Plaintext" header at beginning of KX message. Followed | ||
196 | * by encrypted `struct UDPConfirmation`. | ||
197 | */ | ||
198 | struct InitialKX | ||
199 | { | ||
200 | /** | ||
201 | * Representative of ephemeral key for KX. | ||
202 | */ | ||
203 | struct GNUNET_CRYPTO_ElligatorRepresentative representative; | ||
204 | |||
205 | /** | ||
206 | * HMAC for the following encrypted message, using GCM. HMAC uses | ||
207 | * key derived from the handshake with sequence number zero. | ||
208 | */ | ||
209 | uint8_t gcm_tag[GCM_TAG_SIZE]; | ||
210 | |||
211 | }; | ||
212 | |||
213 | |||
214 | /** | ||
215 | * Encrypted continuation of UDP initial handshake, followed | ||
216 | * by message header with payload. | ||
217 | */ | ||
218 | struct UDPConfirmation | ||
219 | { | ||
220 | /** | ||
221 | * Sender's identity | ||
222 | */ | ||
223 | struct GNUNET_PeerIdentity sender; | ||
224 | |||
225 | /** | ||
226 | * Sender's signature of type #GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_UDP_HANDSHAKE | ||
227 | */ | ||
228 | struct GNUNET_CRYPTO_EddsaSignature sender_sig; | ||
229 | |||
230 | /** | ||
231 | * Monotonic time of @e sender, to possibly help detect replay attacks | ||
232 | * (if receiver persists times by sender). | ||
233 | */ | ||
234 | struct GNUNET_TIME_AbsoluteNBO monotonic_time; | ||
235 | |||
236 | /* followed by messages */ | ||
237 | |||
238 | /* padding may follow actual messages */ | ||
239 | }; | ||
240 | |||
241 | |||
242 | /** | ||
243 | * UDP key acknowledgement. May be sent via backchannel. Allows the | ||
244 | * sender to use `struct UDPBox` with the acknowledge key henceforth. | ||
245 | */ | ||
246 | struct UDPAck | ||
247 | { | ||
248 | /** | ||
249 | * Type is #GNUNET_MESSAGE_TYPE_COMMUNICATOR_UDP_ACK. | ||
250 | */ | ||
251 | struct GNUNET_MessageHeader header; | ||
252 | |||
253 | /** | ||
254 | * Sequence acknowledgement limit. Specifies current maximum sequence | ||
255 | * number supported by receiver. | ||
256 | */ | ||
257 | uint32_t sequence_ack GNUNET_PACKED; | ||
258 | |||
259 | /** | ||
260 | * CMAC of the base key being acknowledged. | ||
261 | */ | ||
262 | struct GNUNET_HashCode cmac; | ||
263 | }; | ||
264 | |||
265 | |||
266 | /** | ||
267 | * Signature we use to verify that the broadcast was really made by | ||
268 | * the peer that claims to have made it. Basically, affirms that the | ||
269 | * peer is really using this IP address (albeit possibly not in _our_ | ||
270 | * LAN). Makes it difficult for peers in the LAN to claim to | ||
271 | * be just any global peer -- an attacker must have at least | ||
272 | * shared a LAN with the peer they're pretending to be here. | ||
273 | */ | ||
274 | struct UdpBroadcastSignature | ||
275 | { | ||
276 | /** | ||
277 | * Purpose must be #GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_UDP_BROADCAST | ||
278 | */ | ||
279 | struct GNUNET_CRYPTO_EccSignaturePurpose purpose; | ||
280 | |||
281 | /** | ||
282 | * Identity of the inititor of the UDP broadcast. | ||
283 | */ | ||
284 | struct GNUNET_PeerIdentity sender; | ||
285 | |||
286 | /** | ||
287 | * Hash of the sender's UDP address. | ||
288 | */ | ||
289 | struct GNUNET_HashCode h_address; | ||
290 | }; | ||
291 | |||
292 | |||
293 | /** | ||
294 | * Broadcast by peer in LAN announcing its presence. Unusual in that | ||
295 | * we don't pad these to full MTU, as we cannot prevent being | ||
296 | * recognized in LAN as GNUnet peers if this feature is enabled | ||
297 | * anyway. Also, the entire message is in cleartext. | ||
298 | */ | ||
299 | struct UDPBroadcast | ||
300 | { | ||
301 | /** | ||
302 | * Sender's peer identity. | ||
303 | */ | ||
304 | struct GNUNET_PeerIdentity sender; | ||
305 | |||
306 | /** | ||
307 | * Sender's signature of type | ||
308 | * #GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_UDP_BROADCAST | ||
309 | */ | ||
310 | struct GNUNET_CRYPTO_EddsaSignature sender_sig; | ||
311 | }; | ||
312 | |||
313 | |||
314 | /** | ||
315 | * UDP message box. Always sent encrypted, only allowed after | ||
316 | * the receiver sent a `struct UDPAck` for the base key! | ||
317 | */ | ||
318 | struct UDPBox | ||
319 | { | ||
320 | /** | ||
321 | * Key and IV identification code. KDF applied to an acknowledged | ||
322 | * base key and a sequence number. Sequence numbers must be used | ||
323 | * monotonically increasing up to the maximum specified in | ||
324 | * `struct UDPAck`. Without further `struct UDPAck`s, the sender | ||
325 | * must fall back to sending handshakes! | ||
326 | */ | ||
327 | struct GNUNET_ShortHashCode kid; | ||
328 | |||
329 | /** | ||
330 | * 128-bit authentication tag for the following encrypted message, | ||
331 | * from GCM. MAC starts at the @e body_start that follows and | ||
332 | * extends until the end of the UDP payload. If the @e hmac is | ||
333 | * wrong, the receiver should check if the message might be a | ||
334 | * `struct UdpHandshakeSignature`. | ||
335 | */ | ||
336 | uint8_t gcm_tag[GCM_TAG_SIZE]; | ||
337 | |||
338 | }; | ||
339 | |||
340 | /** | ||
341 | * Plaintext of a rekey payload in a UDPBox. | ||
342 | */ | ||
343 | struct UDPRekey | ||
344 | { | ||
345 | /** | ||
346 | * Type is #GNUNET_MESSAGE_TYPE_COMMUNICATOR_UDP_REKEY. | ||
347 | */ | ||
348 | struct GNUNET_MessageHeader header; | ||
349 | |||
350 | /** | ||
351 | * Ephemeral key to rekey with. | ||
352 | */ | ||
353 | struct GNUNET_CRYPTO_EcdhePublicKey ephemeral; | ||
354 | }; | ||
355 | |||
356 | GNUNET_NETWORK_STRUCT_END | ||
357 | |||
358 | /** | ||
359 | * Shared secret we generated for a particular sender or receiver. | ||
360 | */ | ||
361 | struct SharedSecret; | ||
362 | |||
363 | |||
364 | /** | ||
365 | * Pre-generated "kid" code (key and IV identification code) to | ||
366 | * quickly derive master key for a `struct UDPBox`. | ||
367 | */ | ||
368 | struct KeyCacheEntry | ||
369 | { | ||
370 | /** | ||
371 | * Kept in a DLL. | ||
372 | */ | ||
373 | struct KeyCacheEntry *next; | ||
374 | |||
375 | /** | ||
376 | * Kept in a DLL. | ||
377 | */ | ||
378 | struct KeyCacheEntry *prev; | ||
379 | |||
380 | /** | ||
381 | * Key and IV identification code. KDF applied to an acknowledged | ||
382 | * base key and a sequence number. Sequence numbers must be used | ||
383 | * monotonically increasing up to the maximum specified in | ||
384 | * `struct UDPAck`. Without further `struct UDPAck`s, the sender | ||
385 | * must fall back to sending handshakes! | ||
386 | */ | ||
387 | struct GNUNET_ShortHashCode kid; | ||
388 | |||
389 | /** | ||
390 | * Corresponding shared secret. | ||
391 | */ | ||
392 | struct SharedSecret *ss; | ||
393 | |||
394 | /** | ||
395 | * Sequence number used to derive this entry from master key. | ||
396 | */ | ||
397 | uint32_t sequence_number; | ||
398 | }; | ||
399 | |||
400 | |||
401 | /** | ||
402 | * Information we track per sender address we have recently been | ||
403 | * in contact with (decryption from sender). | ||
404 | */ | ||
405 | struct SenderAddress; | ||
406 | |||
407 | /** | ||
408 | * Information we track per receiving address we have recently been | ||
409 | * in contact with (encryption to receiver). | ||
410 | */ | ||
411 | struct ReceiverAddress; | ||
412 | |||
413 | /** | ||
414 | * Shared secret we generated for a particular sender or receiver. | ||
415 | */ | ||
416 | struct SharedSecret | ||
417 | { | ||
418 | /** | ||
419 | * Kept in a DLL. | ||
420 | */ | ||
421 | struct SharedSecret *next; | ||
422 | |||
423 | /** | ||
424 | * Kept in a DLL. | ||
425 | */ | ||
426 | struct SharedSecret *prev; | ||
427 | |||
428 | /** | ||
429 | * Kept in a DLL, sorted by sequence number. Only if we are decrypting. | ||
430 | */ | ||
431 | struct KeyCacheEntry *kce_head; | ||
432 | |||
433 | /** | ||
434 | * Kept in a DLL, sorted by sequence number. Only if we are decrypting. | ||
435 | */ | ||
436 | struct KeyCacheEntry *kce_tail; | ||
437 | |||
438 | /** | ||
439 | * Sender we use this shared secret with, or NULL. | ||
440 | */ | ||
441 | struct SenderAddress *sender; | ||
442 | |||
443 | /** | ||
444 | * Receiver we use this shared secret with, or NULL. | ||
445 | */ | ||
446 | struct ReceiverAddress *receiver; | ||
447 | |||
448 | /** | ||
449 | * Master shared secret. | ||
450 | */ | ||
451 | struct GNUNET_HashCode master; | ||
452 | |||
453 | /** | ||
454 | * CMAC is used to identify @e master in ACKs. | ||
455 | */ | ||
456 | struct GNUNET_HashCode cmac; | ||
457 | |||
458 | /** | ||
459 | * Up to which sequence number did we use this @e master already? | ||
460 | * (for encrypting only) | ||
461 | */ | ||
462 | uint32_t sequence_used; | ||
463 | |||
464 | /** | ||
465 | * Up to which sequence number did the other peer allow us to use | ||
466 | * this key, or up to which number did we allow the other peer to | ||
467 | * use this key? | ||
468 | */ | ||
469 | uint32_t sequence_allowed; | ||
470 | |||
471 | /** | ||
472 | * Number of active KCN entries. | ||
473 | */ | ||
474 | unsigned int active_kce_count; | ||
475 | |||
476 | /** | ||
477 | * Bytes sent with this shared secret | ||
478 | */ | ||
479 | size_t bytes_sent; | ||
480 | |||
481 | /** | ||
482 | * rekey initiated for this secret? | ||
483 | */ | ||
484 | int rekey_initiated; | ||
485 | |||
486 | /** | ||
487 | * Also precompute keys despite sufficient acks (for rekey) | ||
488 | */ | ||
489 | int override_available_acks; | ||
490 | }; | ||
491 | |||
492 | |||
493 | /** | ||
494 | * Information we track per sender address we have recently been | ||
495 | * in contact with (we decrypt messages from the sender). | ||
496 | */ | ||
497 | struct SenderAddress | ||
498 | { | ||
499 | /** | ||
500 | * To whom are we talking to. | ||
501 | */ | ||
502 | struct GNUNET_PeerIdentity target; | ||
503 | |||
504 | /** | ||
505 | * Entry in sender expiration heap. | ||
506 | */ | ||
507 | struct GNUNET_CONTAINER_HeapNode *hn; | ||
508 | |||
509 | /** | ||
510 | * Shared secrets we used with @e target, first used is head. | ||
511 | */ | ||
512 | struct SharedSecret *ss_head; | ||
513 | |||
514 | /** | ||
515 | * Shared secrets we used with @e target, last used is tail. | ||
516 | */ | ||
517 | struct SharedSecret *ss_tail; | ||
518 | |||
519 | /** | ||
520 | * Address of the other peer. | ||
521 | */ | ||
522 | struct sockaddr *address; | ||
523 | |||
524 | /** | ||
525 | * Length of the address. | ||
526 | */ | ||
527 | socklen_t address_len; | ||
528 | |||
529 | /** | ||
530 | * The address key for this entry. | ||
531 | */ | ||
532 | struct GNUNET_HashCode key; | ||
533 | |||
534 | /** | ||
535 | * Timeout for this sender. | ||
536 | */ | ||
537 | struct GNUNET_TIME_Absolute timeout; | ||
538 | |||
539 | /** | ||
540 | * Length of the DLL at @a ss_head. | ||
541 | */ | ||
542 | unsigned int num_secrets; | ||
543 | |||
544 | /** | ||
545 | * Number of BOX keys from ACKs we have currently | ||
546 | * available for this sender. | ||
547 | */ | ||
548 | unsigned int acks_available; | ||
549 | |||
550 | /** | ||
551 | * Which network type does this queue use? | ||
552 | */ | ||
553 | enum GNUNET_NetworkType nt; | ||
554 | |||
555 | /** | ||
556 | * sender_destroy already called on sender. | ||
557 | */ | ||
558 | int sender_destroy_called; | ||
559 | |||
560 | /** | ||
561 | * ID of kce working queue task | ||
562 | */ | ||
563 | struct GNUNET_SCHEDULER_Task *kce_task; | ||
564 | |||
565 | /** | ||
566 | * Is the kce_task finished? | ||
567 | */ | ||
568 | int kce_task_finished; | ||
569 | |||
570 | /** | ||
571 | * When KCE finishes, send ACK if GNUNET_YES | ||
572 | */ | ||
573 | int kce_send_ack_on_finish; | ||
574 | }; | ||
575 | |||
576 | |||
577 | /** | ||
578 | * Information we track per receiving address we have recently been | ||
579 | * in contact with (encryption to receiver). | ||
580 | */ | ||
581 | struct ReceiverAddress | ||
582 | { | ||
583 | /** | ||
584 | * Timeout for this receiver address. | ||
585 | */ | ||
586 | struct GNUNET_TIME_Absolute rekey_timeout; | ||
587 | |||
588 | /** | ||
589 | * To whom are we talking to. | ||
590 | */ | ||
591 | struct GNUNET_PeerIdentity target; | ||
592 | |||
593 | /** | ||
594 | * The address key for this entry. | ||
595 | */ | ||
596 | struct GNUNET_HashCode key; | ||
597 | |||
598 | /** | ||
599 | * Shared secrets we received from @e target, first used is head. | ||
600 | */ | ||
601 | struct SharedSecret *ss_head; | ||
602 | |||
603 | /** | ||
604 | * Shared secrets we received with @e target, last used is tail. | ||
605 | */ | ||
606 | struct SharedSecret *ss_tail; | ||
607 | |||
608 | /** | ||
609 | * Address of the receiver in the human-readable format | ||
610 | * with the #COMMUNICATOR_ADDRESS_PREFIX. | ||
611 | */ | ||
612 | char *foreign_addr; | ||
613 | |||
614 | /** | ||
615 | * Address of the other peer. | ||
616 | */ | ||
617 | struct sockaddr *address; | ||
618 | |||
619 | /** | ||
620 | * Length of the address. | ||
621 | */ | ||
622 | socklen_t address_len; | ||
623 | |||
624 | /** | ||
625 | * Entry in sender expiration heap. | ||
626 | */ | ||
627 | struct GNUNET_CONTAINER_HeapNode *hn; | ||
628 | |||
629 | /** | ||
630 | * KX message queue we are providing for the #ch. | ||
631 | */ | ||
632 | struct GNUNET_MQ_Handle *kx_mq; | ||
633 | |||
634 | /** | ||
635 | * Default message queue we are providing for the #ch. | ||
636 | */ | ||
637 | struct GNUNET_MQ_Handle *d_mq; | ||
638 | |||
639 | /** | ||
640 | * handle for KX queue with the #ch. | ||
641 | */ | ||
642 | struct GNUNET_TRANSPORT_QueueHandle *kx_qh; | ||
643 | |||
644 | /** | ||
645 | * handle for default queue with the #ch. | ||
646 | */ | ||
647 | struct GNUNET_TRANSPORT_QueueHandle *d_qh; | ||
648 | |||
649 | /** | ||
650 | * Timeout for this receiver address. | ||
651 | */ | ||
652 | struct GNUNET_TIME_Absolute timeout; | ||
653 | |||
654 | /** | ||
655 | * MTU we allowed transport for this receiver's KX queue. | ||
656 | */ | ||
657 | size_t kx_mtu; | ||
658 | |||
659 | /** | ||
660 | * MTU we allowed transport for this receiver's default queue. | ||
661 | */ | ||
662 | size_t d_mtu; | ||
663 | |||
664 | /** | ||
665 | * Length of the DLL at @a ss_head. | ||
666 | */ | ||
667 | unsigned int num_secrets; | ||
668 | |||
669 | /** | ||
670 | * Number of BOX keys from ACKs we have currently | ||
671 | * available for this receiver. | ||
672 | */ | ||
673 | unsigned int acks_available; | ||
674 | |||
675 | /** | ||
676 | * Which network type does this queue use? | ||
677 | */ | ||
678 | enum GNUNET_NetworkType nt; | ||
679 | |||
680 | /** | ||
681 | * receiver_destroy already called on receiver. | ||
682 | */ | ||
683 | int receiver_destroy_called; | ||
684 | }; | ||
685 | |||
686 | /** | ||
687 | * Interface we broadcast our presence on. | ||
688 | */ | ||
689 | struct BroadcastInterface | ||
690 | { | ||
691 | /** | ||
692 | * Kept in a DLL. | ||
693 | */ | ||
694 | struct BroadcastInterface *next; | ||
695 | |||
696 | /** | ||
697 | * Kept in a DLL. | ||
698 | */ | ||
699 | struct BroadcastInterface *prev; | ||
700 | |||
701 | /** | ||
702 | * Task for this broadcast interface. | ||
703 | */ | ||
704 | struct GNUNET_SCHEDULER_Task *broadcast_task; | ||
705 | |||
706 | /** | ||
707 | * Sender's address of the interface. | ||
708 | */ | ||
709 | struct sockaddr *sa; | ||
710 | |||
711 | /** | ||
712 | * Broadcast address to use on the interface. | ||
713 | */ | ||
714 | struct sockaddr *ba; | ||
715 | |||
716 | /** | ||
717 | * Message we broadcast on this interface. | ||
718 | */ | ||
719 | struct UDPBroadcast bcm; | ||
720 | |||
721 | /** | ||
722 | * If this is an IPv6 interface, this is the request | ||
723 | * we use to join/leave the group. | ||
724 | */ | ||
725 | struct ipv6_mreq mcreq; | ||
726 | |||
727 | /** | ||
728 | * Number of bytes in @e sa. | ||
729 | */ | ||
730 | socklen_t salen; | ||
731 | |||
732 | /** | ||
733 | * Was this interface found in the last #iface_proc() scan? | ||
734 | */ | ||
735 | int found; | ||
736 | }; | ||
737 | |||
738 | /** | ||
739 | * The rekey interval | ||
740 | */ | ||
741 | static struct GNUNET_TIME_Relative rekey_interval; | ||
742 | |||
743 | /** | ||
744 | * How often we do rekey based on number of bytes transmitted | ||
745 | */ | ||
746 | static unsigned long long rekey_max_bytes; | ||
747 | |||
748 | /** | ||
749 | * Cache of pre-generated key IDs. | ||
750 | */ | ||
751 | static struct GNUNET_CONTAINER_MultiShortmap *key_cache; | ||
752 | |||
753 | /** | ||
754 | * ID of read task | ||
755 | */ | ||
756 | static struct GNUNET_SCHEDULER_Task *read_task; | ||
757 | |||
758 | /** | ||
759 | * ID of timeout task | ||
760 | */ | ||
761 | static struct GNUNET_SCHEDULER_Task *timeout_task; | ||
762 | |||
763 | /** | ||
764 | * ID of master broadcast task | ||
765 | */ | ||
766 | static struct GNUNET_SCHEDULER_Task *broadcast_task; | ||
767 | |||
768 | /** | ||
769 | * For logging statistics. | ||
770 | */ | ||
771 | static struct GNUNET_STATISTICS_Handle *stats; | ||
772 | |||
773 | /** | ||
774 | * Our environment. | ||
775 | */ | ||
776 | static struct GNUNET_TRANSPORT_CommunicatorHandle *ch; | ||
777 | |||
778 | /** | ||
779 | * Receivers (map from peer identity to `struct ReceiverAddress`) | ||
780 | */ | ||
781 | static struct GNUNET_CONTAINER_MultiHashMap *receivers; | ||
782 | |||
783 | /** | ||
784 | * Senders (map from peer identity to `struct SenderAddress`) | ||
785 | */ | ||
786 | static struct GNUNET_CONTAINER_MultiHashMap *senders; | ||
787 | |||
788 | /** | ||
789 | * Expiration heap for senders (contains `struct SenderAddress`) | ||
790 | */ | ||
791 | static struct GNUNET_CONTAINER_Heap *senders_heap; | ||
792 | |||
793 | /** | ||
794 | * Expiration heap for receivers (contains `struct ReceiverAddress`) | ||
795 | */ | ||
796 | static struct GNUNET_CONTAINER_Heap *receivers_heap; | ||
797 | |||
798 | /** | ||
799 | * Broadcast interface tasks. Kept in a DLL. | ||
800 | */ | ||
801 | static struct BroadcastInterface *bi_head; | ||
802 | |||
803 | /** | ||
804 | * Broadcast interface tasks. Kept in a DLL. | ||
805 | */ | ||
806 | static struct BroadcastInterface *bi_tail; | ||
807 | |||
808 | /** | ||
809 | * Our socket. | ||
810 | */ | ||
811 | static struct GNUNET_NETWORK_Handle *udp_sock; | ||
812 | |||
813 | /** | ||
814 | * #GNUNET_YES if #udp_sock supports IPv6. | ||
815 | */ | ||
816 | static int have_v6_socket; | ||
817 | |||
818 | /** | ||
819 | * Our public key. | ||
820 | */ | ||
821 | static struct GNUNET_PeerIdentity my_identity; | ||
822 | |||
823 | /** | ||
824 | * Our private key. | ||
825 | */ | ||
826 | static struct GNUNET_CRYPTO_EddsaPrivateKey *my_private_key; | ||
827 | |||
828 | /** | ||
829 | * Our configuration. | ||
830 | */ | ||
831 | static const struct GNUNET_CONFIGURATION_Handle *cfg; | ||
832 | |||
833 | /** | ||
834 | * Our handle to report addresses for validation to TRANSPORT. | ||
835 | */ | ||
836 | static struct GNUNET_TRANSPORT_ApplicationHandle *ah; | ||
837 | |||
838 | /** | ||
839 | * Network scanner to determine network types. | ||
840 | */ | ||
841 | static struct GNUNET_NT_InterfaceScanner *is; | ||
842 | |||
843 | /** | ||
844 | * Connection to NAT service. | ||
845 | */ | ||
846 | static struct GNUNET_NAT_Handle *nat; | ||
847 | |||
848 | /** | ||
849 | * Port number to which we are actually bound. | ||
850 | */ | ||
851 | static uint16_t my_port; | ||
852 | |||
853 | /** | ||
854 | * IPv6 disabled or not. | ||
855 | */ | ||
856 | static int disable_v6; | ||
857 | |||
858 | |||
859 | /** | ||
860 | * An interface went away, stop broadcasting on it. | ||
861 | * | ||
862 | * @param bi entity to close down | ||
863 | */ | ||
864 | static void | ||
865 | bi_destroy (struct BroadcastInterface *bi) | ||
866 | { | ||
867 | if (AF_INET6 == bi->sa->sa_family) | ||
868 | { | ||
869 | /* Leave the multicast group */ | ||
870 | if (GNUNET_OK != GNUNET_NETWORK_socket_setsockopt (udp_sock, | ||
871 | IPPROTO_IPV6, | ||
872 | IPV6_LEAVE_GROUP, | ||
873 | &bi->mcreq, | ||
874 | sizeof(bi->mcreq))) | ||
875 | { | ||
876 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "setsockopt"); | ||
877 | } | ||
878 | } | ||
879 | GNUNET_CONTAINER_DLL_remove (bi_head, bi_tail, bi); | ||
880 | GNUNET_SCHEDULER_cancel (bi->broadcast_task); | ||
881 | GNUNET_free (bi->sa); | ||
882 | GNUNET_free (bi->ba); | ||
883 | GNUNET_free (bi); | ||
884 | } | ||
885 | |||
886 | static int | ||
887 | secret_destroy (struct SharedSecret *ss); | ||
888 | |||
889 | /** | ||
890 | * Destroys a receiving state due to timeout or shutdown. | ||
891 | * | ||
892 | * @param receiver entity to close down | ||
893 | */ | ||
894 | static void | ||
895 | receiver_destroy (struct ReceiverAddress *receiver) | ||
896 | { | ||
897 | struct SharedSecret *ss; | ||
898 | receiver->receiver_destroy_called = GNUNET_YES; | ||
899 | |||
900 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
901 | "Disconnecting receiver for peer `%s'\n", | ||
902 | GNUNET_i2s (&receiver->target)); | ||
903 | if (NULL != receiver->kx_qh) | ||
904 | { | ||
905 | GNUNET_TRANSPORT_communicator_mq_del (receiver->kx_qh); | ||
906 | receiver->kx_qh = NULL; | ||
907 | receiver->kx_mq = NULL; | ||
908 | } | ||
909 | if (NULL != receiver->d_qh) | ||
910 | { | ||
911 | GNUNET_TRANSPORT_communicator_mq_del (receiver->d_qh); | ||
912 | receiver->d_qh = NULL; | ||
913 | } | ||
914 | else if (NULL != receiver->d_mq) | ||
915 | { | ||
916 | GNUNET_MQ_destroy (receiver->d_mq); | ||
917 | receiver->d_mq = NULL; | ||
918 | } | ||
919 | GNUNET_assert (GNUNET_YES == | ||
920 | GNUNET_CONTAINER_multihashmap_remove (receivers, | ||
921 | &receiver->key, | ||
922 | receiver)); | ||
923 | GNUNET_assert (receiver == GNUNET_CONTAINER_heap_remove_node (receiver->hn)); | ||
924 | GNUNET_STATISTICS_set (stats, | ||
925 | "# receivers active", | ||
926 | GNUNET_CONTAINER_multihashmap_size (receivers), | ||
927 | GNUNET_NO); | ||
928 | while (NULL != (ss = receiver->ss_head)) | ||
929 | { | ||
930 | secret_destroy (ss); | ||
931 | } | ||
932 | GNUNET_free (receiver->address); | ||
933 | GNUNET_free (receiver->foreign_addr); | ||
934 | GNUNET_free (receiver); | ||
935 | } | ||
936 | |||
937 | |||
938 | /** | ||
939 | * Free memory used by key cache entry. | ||
940 | * | ||
941 | * @param kce the key cache entry | ||
942 | */ | ||
943 | static void | ||
944 | kce_destroy (struct KeyCacheEntry *kce) | ||
945 | { | ||
946 | struct SharedSecret *ss = kce->ss; | ||
947 | |||
948 | ss->active_kce_count--; | ||
949 | GNUNET_CONTAINER_DLL_remove (ss->kce_head, ss->kce_tail, kce); | ||
950 | GNUNET_assert (GNUNET_YES == GNUNET_CONTAINER_multishortmap_remove (key_cache, | ||
951 | &kce->kid, | ||
952 | kce)); | ||
953 | GNUNET_free (kce); | ||
954 | } | ||
955 | |||
956 | |||
957 | /** | ||
958 | * Compute @a kid. | ||
959 | * | ||
960 | * @param msec master secret for HMAC calculation | ||
961 | * @param serial number for the @a smac calculation | ||
962 | * @param[out] kid where to write the key ID | ||
963 | */ | ||
964 | static void | ||
965 | get_kid (const struct GNUNET_HashCode *msec, | ||
966 | uint32_t serial, | ||
967 | struct GNUNET_ShortHashCode *kid) | ||
968 | { | ||
969 | uint32_t sid = htonl (serial); | ||
970 | |||
971 | GNUNET_CRYPTO_hkdf (kid, | ||
972 | sizeof(*kid), | ||
973 | GCRY_MD_SHA512, | ||
974 | GCRY_MD_SHA256, | ||
975 | &sid, | ||
976 | sizeof(sid), | ||
977 | msec, | ||
978 | sizeof(*msec), | ||
979 | "UDP-KID", | ||
980 | strlen ("UDP-KID"), | ||
981 | NULL, | ||
982 | 0); | ||
983 | } | ||
984 | |||
985 | |||
986 | /** | ||
987 | * Setup key cache entry for sequence number @a seq and shared secret @a ss. | ||
988 | * | ||
989 | * @param ss shared secret | ||
990 | * @param seq sequence number for the key cache entry | ||
991 | */ | ||
992 | static void | ||
993 | kce_generate (struct SharedSecret *ss, uint32_t seq) | ||
994 | { | ||
995 | struct KeyCacheEntry *kce; | ||
996 | |||
997 | GNUNET_assert (0 < seq); | ||
998 | kce = GNUNET_new (struct KeyCacheEntry); | ||
999 | kce->ss = ss; | ||
1000 | kce->sequence_number = seq; | ||
1001 | get_kid (&ss->master, seq, &kce->kid); | ||
1002 | GNUNET_CONTAINER_DLL_insert (ss->kce_head, ss->kce_tail, kce); | ||
1003 | ss->active_kce_count++; | ||
1004 | ss->sender->acks_available++; | ||
1005 | (void) GNUNET_CONTAINER_multishortmap_put ( | ||
1006 | key_cache, | ||
1007 | &kce->kid, | ||
1008 | kce, | ||
1009 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE); | ||
1010 | GNUNET_STATISTICS_set (stats, | ||
1011 | "# KIDs active", | ||
1012 | GNUNET_CONTAINER_multishortmap_size (key_cache), | ||
1013 | GNUNET_NO); | ||
1014 | } | ||
1015 | |||
1016 | |||
1017 | /** | ||
1018 | * Destroy @a ss and associated key cache entries. | ||
1019 | * | ||
1020 | * @param ss shared secret to destroy | ||
1021 | * @param withoutKce If GNUNET_YES shared secrets with kce will not be destroyed. | ||
1022 | */ | ||
1023 | static int | ||
1024 | secret_destroy (struct SharedSecret *ss) | ||
1025 | { | ||
1026 | struct SenderAddress *sender; | ||
1027 | struct ReceiverAddress *receiver; | ||
1028 | struct KeyCacheEntry *kce; | ||
1029 | |||
1030 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1031 | "secret %s destroy %u\n", | ||
1032 | GNUNET_h2s (&ss->master), | ||
1033 | ss->sequence_allowed); | ||
1034 | if (NULL != (sender = ss->sender)) | ||
1035 | { | ||
1036 | GNUNET_CONTAINER_DLL_remove (sender->ss_head, sender->ss_tail, ss); | ||
1037 | sender->num_secrets--; | ||
1038 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1039 | "%u sender->num_secrets %u allowed %u used, %u available\n", | ||
1040 | sender->num_secrets, ss->sequence_allowed, ss->sequence_used, | ||
1041 | sender->acks_available); | ||
1042 | sender->acks_available -= (ss->sequence_allowed - ss->sequence_used); | ||
1043 | if (NULL != ss->sender->kce_task) | ||
1044 | { | ||
1045 | GNUNET_SCHEDULER_cancel (ss->sender->kce_task); | ||
1046 | ss->sender->kce_task = NULL; | ||
1047 | } | ||
1048 | } | ||
1049 | if (NULL != (receiver = ss->receiver)) | ||
1050 | { | ||
1051 | GNUNET_CONTAINER_DLL_remove (receiver->ss_head, receiver->ss_tail, ss); | ||
1052 | receiver->num_secrets--; | ||
1053 | receiver->acks_available -= (ss->sequence_allowed - ss->sequence_used); | ||
1054 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1055 | "%u receiver->num_secrets\n", | ||
1056 | receiver->num_secrets); | ||
1057 | } | ||
1058 | while (NULL != (kce = ss->kce_head)) | ||
1059 | kce_destroy (kce); | ||
1060 | GNUNET_STATISTICS_update (stats, "# Secrets active", -1, GNUNET_NO); | ||
1061 | GNUNET_STATISTICS_set (stats, | ||
1062 | "# KIDs active", | ||
1063 | GNUNET_CONTAINER_multishortmap_size (key_cache), | ||
1064 | GNUNET_NO); | ||
1065 | GNUNET_free (ss); | ||
1066 | return GNUNET_YES; | ||
1067 | } | ||
1068 | |||
1069 | |||
1070 | /** | ||
1071 | * Functions with this signature are called whenever we need | ||
1072 | * to close a sender's state due to timeout. | ||
1073 | * | ||
1074 | * @param sender entity to close down | ||
1075 | */ | ||
1076 | static void | ||
1077 | sender_destroy (struct SenderAddress *sender) | ||
1078 | { | ||
1079 | struct SharedSecret *ss; | ||
1080 | sender->sender_destroy_called = GNUNET_YES; | ||
1081 | GNUNET_assert ( | ||
1082 | GNUNET_YES == | ||
1083 | GNUNET_CONTAINER_multihashmap_remove (senders, &sender->key, sender)); | ||
1084 | GNUNET_assert (sender == GNUNET_CONTAINER_heap_remove_node (sender->hn)); | ||
1085 | GNUNET_STATISTICS_set (stats, | ||
1086 | "# senders active", | ||
1087 | GNUNET_CONTAINER_multihashmap_size (senders), | ||
1088 | GNUNET_NO); | ||
1089 | while (NULL != (ss = sender->ss_head)) | ||
1090 | { | ||
1091 | secret_destroy (ss); | ||
1092 | } | ||
1093 | GNUNET_free (sender->address); | ||
1094 | GNUNET_free (sender); | ||
1095 | } | ||
1096 | |||
1097 | |||
1098 | /** | ||
1099 | * Compute @a key and @a iv. | ||
1100 | * | ||
1101 | * @param msec master secret for calculation | ||
1102 | * @param serial number for the @a smac calculation | ||
1103 | * @param[out] key where to write the decryption key | ||
1104 | * @param[out] iv where to write the IV | ||
1105 | */ | ||
1106 | static void | ||
1107 | get_iv_key (const struct GNUNET_HashCode *msec, | ||
1108 | uint32_t serial, | ||
1109 | char key[AES_KEY_SIZE], | ||
1110 | char iv[AES_IV_SIZE]) | ||
1111 | { | ||
1112 | uint32_t sid = htonl (serial); | ||
1113 | char res[AES_KEY_SIZE + AES_IV_SIZE]; | ||
1114 | |||
1115 | GNUNET_CRYPTO_hkdf (res, | ||
1116 | sizeof(res), | ||
1117 | GCRY_MD_SHA512, | ||
1118 | GCRY_MD_SHA256, | ||
1119 | &sid, | ||
1120 | sizeof(sid), | ||
1121 | msec, | ||
1122 | sizeof(*msec), | ||
1123 | "UDP-IV-KEY", | ||
1124 | strlen ("UDP-IV-KEY"), | ||
1125 | NULL, | ||
1126 | 0); | ||
1127 | memcpy (key, res, AES_KEY_SIZE); | ||
1128 | memcpy (iv, &res[AES_KEY_SIZE], AES_IV_SIZE); | ||
1129 | } | ||
1130 | |||
1131 | |||
1132 | /** | ||
1133 | * Increment sender timeout due to activity. | ||
1134 | * | ||
1135 | * @param sender address for which the timeout should be rescheduled | ||
1136 | */ | ||
1137 | static void | ||
1138 | reschedule_sender_timeout (struct SenderAddress *sender) | ||
1139 | { | ||
1140 | sender->timeout = | ||
1141 | GNUNET_TIME_relative_to_absolute (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT); | ||
1142 | GNUNET_CONTAINER_heap_update_cost (sender->hn, sender->timeout.abs_value_us); | ||
1143 | } | ||
1144 | |||
1145 | |||
1146 | /** | ||
1147 | * Increment receiver timeout due to activity. | ||
1148 | * | ||
1149 | * @param receiver address for which the timeout should be rescheduled | ||
1150 | */ | ||
1151 | static void | ||
1152 | reschedule_receiver_timeout (struct ReceiverAddress *receiver) | ||
1153 | { | ||
1154 | receiver->timeout = | ||
1155 | GNUNET_TIME_relative_to_absolute (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT); | ||
1156 | GNUNET_CONTAINER_heap_update_cost (receiver->hn, | ||
1157 | receiver->timeout.abs_value_us); | ||
1158 | } | ||
1159 | |||
1160 | |||
1161 | /** | ||
1162 | * Task run to check #receiver_heap and #sender_heap for timeouts. | ||
1163 | * | ||
1164 | * @param cls unused, NULL | ||
1165 | */ | ||
1166 | static void | ||
1167 | check_timeouts (void *cls) | ||
1168 | { | ||
1169 | struct GNUNET_TIME_Relative st; | ||
1170 | struct GNUNET_TIME_Relative rt; | ||
1171 | struct GNUNET_TIME_Relative delay; | ||
1172 | struct ReceiverAddress *receiver; | ||
1173 | struct SenderAddress *sender; | ||
1174 | |||
1175 | (void) cls; | ||
1176 | timeout_task = NULL; | ||
1177 | rt = GNUNET_TIME_UNIT_FOREVER_REL; | ||
1178 | while (NULL != (receiver = GNUNET_CONTAINER_heap_peek (receivers_heap))) | ||
1179 | { | ||
1180 | rt = GNUNET_TIME_absolute_get_remaining (receiver->timeout); | ||
1181 | if (0 != rt.rel_value_us) | ||
1182 | break; | ||
1183 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1184 | "Receiver timed out\n"); | ||
1185 | receiver_destroy (receiver); | ||
1186 | } | ||
1187 | st = GNUNET_TIME_UNIT_FOREVER_REL; | ||
1188 | while (NULL != (sender = GNUNET_CONTAINER_heap_peek (senders_heap))) | ||
1189 | { | ||
1190 | if (GNUNET_YES != sender->sender_destroy_called) | ||
1191 | { | ||
1192 | st = GNUNET_TIME_absolute_get_remaining (sender->timeout); | ||
1193 | if (0 != st.rel_value_us) | ||
1194 | break; | ||
1195 | sender_destroy (sender); | ||
1196 | } | ||
1197 | } | ||
1198 | delay = GNUNET_TIME_relative_min (rt, st); | ||
1199 | if (delay.rel_value_us < GNUNET_TIME_UNIT_FOREVER_REL.rel_value_us) | ||
1200 | timeout_task = GNUNET_SCHEDULER_add_delayed (delay, &check_timeouts, NULL); | ||
1201 | } | ||
1202 | |||
1203 | |||
1204 | /** | ||
1205 | * Calculate cmac from master in @a ss. | ||
1206 | * | ||
1207 | * @param[in,out] ss data structure to complete | ||
1208 | */ | ||
1209 | static void | ||
1210 | calculate_cmac (struct SharedSecret *ss) | ||
1211 | { | ||
1212 | GNUNET_CRYPTO_hkdf (&ss->cmac, | ||
1213 | sizeof(ss->cmac), | ||
1214 | GCRY_MD_SHA512, | ||
1215 | GCRY_MD_SHA256, | ||
1216 | "CMAC", | ||
1217 | strlen ("CMAC"), | ||
1218 | &ss->master, | ||
1219 | sizeof(ss->master), | ||
1220 | "UDP-CMAC", | ||
1221 | strlen ("UDP-CMAC"), | ||
1222 | NULL, | ||
1223 | 0); | ||
1224 | } | ||
1225 | |||
1226 | |||
1227 | /** | ||
1228 | * We received @a plaintext_len bytes of @a plaintext from a @a sender. | ||
1229 | * Pass it on to CORE. | ||
1230 | * | ||
1231 | * @param queue the queue that received the plaintext | ||
1232 | * @param plaintext the plaintext that was received | ||
1233 | * @param plaintext_len number of bytes of plaintext received | ||
1234 | */ | ||
1235 | static void | ||
1236 | pass_plaintext_to_core (struct SenderAddress *sender, | ||
1237 | const void *plaintext, | ||
1238 | size_t plaintext_len) | ||
1239 | { | ||
1240 | const struct GNUNET_MessageHeader *hdr = plaintext; | ||
1241 | const char *pos = plaintext; | ||
1242 | |||
1243 | while (ntohs (hdr->size) <= plaintext_len) | ||
1244 | { | ||
1245 | GNUNET_STATISTICS_update (stats, | ||
1246 | "# bytes given to core", | ||
1247 | ntohs (hdr->size), | ||
1248 | GNUNET_NO); | ||
1249 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1250 | "Giving %u bytes to TNG\n", ntohs (hdr->size)); | ||
1251 | GNUNET_assert (GNUNET_SYSERR != | ||
1252 | GNUNET_TRANSPORT_communicator_receive (ch, | ||
1253 | &sender->target, | ||
1254 | hdr, | ||
1255 | ADDRESS_VALIDITY_PERIOD, | ||
1256 | NULL /* no flow control possible */ | ||
1257 | , | ||
1258 | NULL)); | ||
1259 | /* move on to next message, if any */ | ||
1260 | plaintext_len -= ntohs (hdr->size); | ||
1261 | if (plaintext_len < sizeof(*hdr)) | ||
1262 | break; | ||
1263 | pos += ntohs (hdr->size); | ||
1264 | hdr = (const struct GNUNET_MessageHeader *) pos; | ||
1265 | // TODO for now..., we do not actually sen >1msg or have a way of telling | ||
1266 | // if we are done | ||
1267 | break; | ||
1268 | } | ||
1269 | GNUNET_STATISTICS_update (stats, | ||
1270 | "# bytes padding discarded", | ||
1271 | plaintext_len, | ||
1272 | GNUNET_NO); | ||
1273 | } | ||
1274 | |||
1275 | |||
1276 | /** | ||
1277 | * Setup @a cipher based on shared secret @a msec and | ||
1278 | * serial number @a serial. | ||
1279 | * | ||
1280 | * @param msec master shared secret | ||
1281 | * @param serial serial number of cipher to set up | ||
1282 | * @param cipher[out] cipher to initialize | ||
1283 | */ | ||
1284 | static void | ||
1285 | setup_cipher (const struct GNUNET_HashCode *msec, | ||
1286 | uint32_t serial, | ||
1287 | gcry_cipher_hd_t *cipher) | ||
1288 | { | ||
1289 | char key[AES_KEY_SIZE]; | ||
1290 | char iv[AES_IV_SIZE]; | ||
1291 | int rc; | ||
1292 | |||
1293 | GNUNET_assert (0 == | ||
1294 | gcry_cipher_open (cipher, | ||
1295 | GCRY_CIPHER_AES256 /* low level: go for speed */ | ||
1296 | , | ||
1297 | GCRY_CIPHER_MODE_GCM, | ||
1298 | 0 /* flags */)); | ||
1299 | get_iv_key (msec, serial, key, iv); | ||
1300 | rc = gcry_cipher_setkey (*cipher, key, sizeof(key)); | ||
1301 | GNUNET_assert ((0 == rc) || ((char) rc == GPG_ERR_WEAK_KEY)); | ||
1302 | rc = gcry_cipher_setiv (*cipher, iv, sizeof(iv)); | ||
1303 | GNUNET_assert ((0 == rc) || ((char) rc == GPG_ERR_WEAK_KEY)); | ||
1304 | } | ||
1305 | |||
1306 | |||
1307 | /** | ||
1308 | * Try to decrypt @a buf using shared secret @a ss and key/iv | ||
1309 | * derived using @a serial. | ||
1310 | * | ||
1311 | * @param ss shared secret | ||
1312 | * @param tag GCM authentication tag | ||
1313 | * @param serial serial number to use | ||
1314 | * @param in_buf input buffer to decrypt | ||
1315 | * @param in_buf_size number of bytes in @a in_buf and available in @a out_buf | ||
1316 | * @param out_buf where to write the result | ||
1317 | * @return #GNUNET_OK on success | ||
1318 | */ | ||
1319 | static int | ||
1320 | try_decrypt (const struct SharedSecret *ss, | ||
1321 | const uint8_t *tag, | ||
1322 | uint32_t serial, | ||
1323 | const char *in_buf, | ||
1324 | size_t in_buf_size, | ||
1325 | char *out_buf) | ||
1326 | { | ||
1327 | gcry_cipher_hd_t cipher; | ||
1328 | |||
1329 | setup_cipher (&ss->master, serial, &cipher); | ||
1330 | GNUNET_assert ( | ||
1331 | 0 == | ||
1332 | gcry_cipher_decrypt (cipher, out_buf, in_buf_size, in_buf, in_buf_size)); | ||
1333 | if (0 != gcry_cipher_checktag (cipher, tag, GCM_TAG_SIZE)) | ||
1334 | { | ||
1335 | gcry_cipher_close (cipher); | ||
1336 | GNUNET_STATISTICS_update (stats, | ||
1337 | "# AEAD authentication failures", | ||
1338 | 1, | ||
1339 | GNUNET_NO); | ||
1340 | return GNUNET_SYSERR; | ||
1341 | } | ||
1342 | gcry_cipher_close (cipher); | ||
1343 | return GNUNET_OK; | ||
1344 | } | ||
1345 | |||
1346 | |||
1347 | /** | ||
1348 | * Setup shared secret for decryption. | ||
1349 | * | ||
1350 | * @param ephemeral ephemeral key we received from the other peer | ||
1351 | * @return new shared secret | ||
1352 | */ | ||
1353 | static struct SharedSecret * | ||
1354 | setup_shared_secret_dec (const struct GNUNET_CRYPTO_EcdhePublicKey *ephemeral) | ||
1355 | { | ||
1356 | struct SharedSecret *ss; | ||
1357 | |||
1358 | ss = GNUNET_new (struct SharedSecret); | ||
1359 | GNUNET_CRYPTO_eddsa_kem_decaps (my_private_key, ephemeral, &ss->master); | ||
1360 | calculate_cmac (ss); | ||
1361 | return ss; | ||
1362 | } | ||
1363 | |||
1364 | |||
1365 | /** | ||
1366 | * Setup shared secret for decryption for initial handshake. | ||
1367 | * | ||
1368 | * @param representative of ephemeral key we received from the other peer | ||
1369 | * @return new shared secret | ||
1370 | */ | ||
1371 | static struct SharedSecret * | ||
1372 | setup_initial_shared_secret_dec (const struct | ||
1373 | GNUNET_CRYPTO_ElligatorRepresentative * | ||
1374 | representative) | ||
1375 | { | ||
1376 | struct SharedSecret *ss; | ||
1377 | |||
1378 | ss = GNUNET_new (struct SharedSecret); | ||
1379 | GNUNET_CRYPTO_eddsa_elligator_kem_decaps (my_private_key, representative, | ||
1380 | &ss->master); | ||
1381 | calculate_cmac (ss); | ||
1382 | return ss; | ||
1383 | } | ||
1384 | |||
1385 | |||
1386 | /** | ||
1387 | * Setup new shared secret for encryption using KEM. | ||
1388 | * | ||
1389 | * @param[out] ephemeral ephemeral key to be sent to other peer (encapsulated key from KEM) | ||
1390 | * @param[in,out] receiver queue to initialize encryption key for | ||
1391 | * @return new shared secret | ||
1392 | */ | ||
1393 | static struct SharedSecret * | ||
1394 | setup_shared_secret_ephemeral (struct GNUNET_CRYPTO_EcdhePublicKey *ephemeral, | ||
1395 | struct ReceiverAddress *receiver) | ||
1396 | { | ||
1397 | struct SharedSecret *ss; | ||
1398 | struct GNUNET_HashCode k; | ||
1399 | |||
1400 | GNUNET_CRYPTO_eddsa_kem_encaps (&receiver->target.public_key, ephemeral, &k); | ||
1401 | ss = GNUNET_new (struct SharedSecret); | ||
1402 | memcpy (&ss->master, &k, sizeof (k)); | ||
1403 | calculate_cmac (ss); | ||
1404 | ss->receiver = receiver; | ||
1405 | GNUNET_CONTAINER_DLL_insert (receiver->ss_head, receiver->ss_tail, ss); | ||
1406 | receiver->num_secrets++; | ||
1407 | GNUNET_STATISTICS_update (stats, "# Secrets active", 1, GNUNET_NO); | ||
1408 | return ss; | ||
1409 | } | ||
1410 | |||
1411 | |||
1412 | /** | ||
1413 | * Setup new shared secret for encryption using KEM for initial handshake. | ||
1414 | * | ||
1415 | * @param[out] representative of ephemeral key to be sent to other peer (encapsulated key from KEM) | ||
1416 | * @param[in,out] receiver queue to initialize encryption key for | ||
1417 | * @return new shared secret | ||
1418 | */ | ||
1419 | static struct SharedSecret * | ||
1420 | setup_initial_shared_secret_ephemeral (struct | ||
1421 | GNUNET_CRYPTO_ElligatorRepresentative * | ||
1422 | representative, | ||
1423 | struct ReceiverAddress *receiver) | ||
1424 | { | ||
1425 | struct SharedSecret *ss; | ||
1426 | struct GNUNET_HashCode k; | ||
1427 | |||
1428 | GNUNET_CRYPTO_eddsa_elligator_kem_encaps (&receiver->target.public_key, | ||
1429 | representative, &k); | ||
1430 | ss = GNUNET_new (struct SharedSecret); | ||
1431 | memcpy (&ss->master, &k, sizeof (k)); | ||
1432 | calculate_cmac (ss); | ||
1433 | ss->receiver = receiver; | ||
1434 | GNUNET_CONTAINER_DLL_insert (receiver->ss_head, receiver->ss_tail, ss); | ||
1435 | receiver->num_secrets++; | ||
1436 | GNUNET_STATISTICS_update (stats, "# Secrets active", 1, GNUNET_NO); | ||
1437 | return ss; | ||
1438 | } | ||
1439 | |||
1440 | |||
1441 | /** | ||
1442 | * Setup the MQ for the @a receiver. If a queue exists, | ||
1443 | * the existing one is destroyed. Then the MTU is | ||
1444 | * recalculated and a fresh queue is initialized. | ||
1445 | * | ||
1446 | * @param receiver receiver to setup MQ for | ||
1447 | */ | ||
1448 | static void | ||
1449 | setup_receiver_mq (struct ReceiverAddress *receiver); | ||
1450 | |||
1451 | |||
1452 | /** | ||
1453 | * Best effort try to purge some secrets. | ||
1454 | * Ideally those, not ACKed. | ||
1455 | * | ||
1456 | * @param ss_list_tail the oldest secret in the list of interest. | ||
1457 | * @return number of deleted secrets. | ||
1458 | */ | ||
1459 | unsigned int | ||
1460 | purge_secrets (struct SharedSecret *ss_list_tail) | ||
1461 | { | ||
1462 | struct SharedSecret *pos; | ||
1463 | struct SharedSecret *ss_to_purge; | ||
1464 | unsigned int deleted = 0; | ||
1465 | |||
1466 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1467 | "Purging secrets.\n"); | ||
1468 | pos = ss_list_tail; | ||
1469 | while (NULL != pos) | ||
1470 | { | ||
1471 | ss_to_purge = pos; | ||
1472 | pos = pos->prev; | ||
1473 | |||
1474 | // FIXME we may also want to purge old unacked. | ||
1475 | if (rekey_max_bytes <= ss_to_purge->bytes_sent) | ||
1476 | { | ||
1477 | secret_destroy (ss_to_purge); | ||
1478 | deleted++; | ||
1479 | } | ||
1480 | } | ||
1481 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1482 | "Finished purging all, deleted %u.\n", deleted); | ||
1483 | return deleted; | ||
1484 | } | ||
1485 | |||
1486 | |||
1487 | static void | ||
1488 | add_acks (struct SharedSecret *ss, int acks_to_add) | ||
1489 | { | ||
1490 | |||
1491 | struct ReceiverAddress *receiver = ss->receiver; | ||
1492 | |||
1493 | GNUNET_assert (NULL != ss); | ||
1494 | GNUNET_assert (NULL != receiver); | ||
1495 | |||
1496 | if (NULL == receiver->d_qh) | ||
1497 | { | ||
1498 | receiver->d_qh = | ||
1499 | GNUNET_TRANSPORT_communicator_mq_add (ch, | ||
1500 | &receiver->target, | ||
1501 | receiver->foreign_addr, | ||
1502 | receiver->d_mtu, | ||
1503 | acks_to_add, | ||
1504 | 1, /* Priority */ | ||
1505 | receiver->nt, | ||
1506 | GNUNET_TRANSPORT_CS_OUTBOUND, | ||
1507 | receiver->d_mq); | ||
1508 | } | ||
1509 | else | ||
1510 | { | ||
1511 | GNUNET_TRANSPORT_communicator_mq_update (ch, | ||
1512 | receiver->d_qh, | ||
1513 | acks_to_add, | ||
1514 | 1); | ||
1515 | } | ||
1516 | |||
1517 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1518 | "Tell transport we have %u more acks!\n", | ||
1519 | acks_to_add); | ||
1520 | |||
1521 | // Until here for alternativ 1 | ||
1522 | |||
1523 | /* move ss to head to avoid discarding it anytime soon! */ | ||
1524 | |||
1525 | // GNUNET_CONTAINER_DLL_remove (receiver->ss_head, receiver->ss_tail, ss); | ||
1526 | // GNUNET_CONTAINER_DLL_insert (receiver->ss_head, receiver->ss_tail, ss); | ||
1527 | } | ||
1528 | |||
1529 | |||
1530 | /** | ||
1531 | * We received an ACK for @a pid. Check if it is for | ||
1532 | * the receiver in @a value and if so, handle it and | ||
1533 | * return #GNUNET_NO. Otherwise, return #GNUNET_YES. | ||
1534 | * | ||
1535 | * @param cls a `const struct UDPAck` | ||
1536 | * @param pid peer the ACK is from | ||
1537 | * @param value a `struct ReceiverAddress` | ||
1538 | * @return #GNUNET_YES to continue to iterate | ||
1539 | */ | ||
1540 | static int | ||
1541 | handle_ack (void *cls, const struct GNUNET_HashCode *key, void *value) | ||
1542 | { | ||
1543 | const struct UDPAck *ack = cls; | ||
1544 | struct ReceiverAddress *receiver = value; | ||
1545 | uint32_t acks_to_add; | ||
1546 | uint32_t allowed; | ||
1547 | |||
1548 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1549 | "in handle ack with cmac %s\n", | ||
1550 | GNUNET_h2s (&ack->cmac)); | ||
1551 | |||
1552 | (void) key; | ||
1553 | for (struct SharedSecret *ss = receiver->ss_head; NULL != ss; ss = ss->next) | ||
1554 | { | ||
1555 | if (0 == memcmp (&ack->cmac, &ss->cmac, sizeof(struct GNUNET_HashCode))) | ||
1556 | { | ||
1557 | |||
1558 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1559 | "Found matching cmac\n"); | ||
1560 | |||
1561 | allowed = ntohl (ack->sequence_ack); | ||
1562 | |||
1563 | if (allowed <= ss->sequence_allowed) | ||
1564 | { | ||
1565 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1566 | "Ignoring ack, not giving us increased window\n."); | ||
1567 | return GNUNET_NO; | ||
1568 | } | ||
1569 | acks_to_add = (allowed - ss->sequence_allowed); | ||
1570 | GNUNET_assert (0 != acks_to_add); | ||
1571 | receiver->acks_available += (allowed - ss->sequence_allowed); | ||
1572 | ss->sequence_allowed = allowed; | ||
1573 | add_acks (ss, acks_to_add); | ||
1574 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1575 | "New sequence allows until %u (+%u). Acks available to us: %u. For secret %s\n", | ||
1576 | allowed, | ||
1577 | acks_to_add, | ||
1578 | receiver->acks_available, | ||
1579 | GNUNET_h2s (&ss->master)); | ||
1580 | return GNUNET_NO; | ||
1581 | } | ||
1582 | } | ||
1583 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1584 | "Matching cmac not found for ack!\n"); | ||
1585 | return GNUNET_YES; | ||
1586 | } | ||
1587 | |||
1588 | |||
1589 | /** | ||
1590 | * We established a shared secret with a sender. We should try to send | ||
1591 | * the sender an `struct UDPAck` at the next opportunity to allow the | ||
1592 | * sender to use @a ss longer (assuming we did not yet already | ||
1593 | * recently). | ||
1594 | * | ||
1595 | * @param ss shared secret to generate ACKs for | ||
1596 | */ | ||
1597 | static void | ||
1598 | consider_ss_ack (struct SharedSecret *ss) | ||
1599 | { | ||
1600 | struct UDPAck ack; | ||
1601 | GNUNET_assert (NULL != ss->sender); | ||
1602 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1603 | "Considering SS UDPAck %s\n", | ||
1604 | GNUNET_i2s_full (&ss->sender->target)); | ||
1605 | |||
1606 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1607 | "Sender has %u acks available.\n", | ||
1608 | ss->sender->acks_available); | ||
1609 | /* drop ancient KeyCacheEntries */ | ||
1610 | while ((NULL != ss->kce_head) && | ||
1611 | (MAX_SQN_DELTA < | ||
1612 | ss->kce_head->sequence_number - ss->kce_tail->sequence_number)) | ||
1613 | kce_destroy (ss->kce_tail); | ||
1614 | |||
1615 | |||
1616 | ack.header.type = htons (GNUNET_MESSAGE_TYPE_COMMUNICATOR_UDP_ACK); | ||
1617 | ack.header.size = htons (sizeof(ack)); | ||
1618 | ack.sequence_ack = htonl (ss->sequence_allowed); | ||
1619 | ack.cmac = ss->cmac; | ||
1620 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1621 | "Notifying transport with UDPAck %s, sequence %u and master %s\n", | ||
1622 | GNUNET_i2s_full (&ss->sender->target), | ||
1623 | ss->sequence_allowed, | ||
1624 | GNUNET_h2s (&(ss->master))); | ||
1625 | GNUNET_TRANSPORT_communicator_notify (ch, | ||
1626 | &ss->sender->target, | ||
1627 | COMMUNICATOR_ADDRESS_PREFIX, | ||
1628 | &ack.header); | ||
1629 | } | ||
1630 | |||
1631 | |||
1632 | static void | ||
1633 | kce_generate_cb (void *cls) | ||
1634 | { | ||
1635 | struct SharedSecret *ss = cls; | ||
1636 | ss->sender->kce_task = NULL; | ||
1637 | |||
1638 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1639 | "Precomputing %u keys for master %s\n", | ||
1640 | GENERATE_AT_ONCE, | ||
1641 | GNUNET_h2s (&(ss->master))); | ||
1642 | if ((ss->override_available_acks != GNUNET_YES) && | ||
1643 | (KCN_TARGET < ss->sender->acks_available)) | ||
1644 | return; | ||
1645 | for (int i = 0; i < GENERATE_AT_ONCE; i++) | ||
1646 | kce_generate (ss, ++ss->sequence_allowed); | ||
1647 | |||
1648 | /** | ||
1649 | * As long as we loose over 30% of max acks in reschedule, | ||
1650 | * We keep generating acks for this ss. | ||
1651 | */ | ||
1652 | if (KCN_TARGET > ss->sender->acks_available) | ||
1653 | { | ||
1654 | ss->sender->kce_task = GNUNET_SCHEDULER_add_delayed ( | ||
1655 | WORKING_QUEUE_INTERVALL, | ||
1656 | kce_generate_cb, | ||
1657 | ss); | ||
1658 | return; | ||
1659 | } | ||
1660 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1661 | "We have enough keys (ACKs: %u).\n", ss->sender->acks_available); | ||
1662 | ss->sender->kce_task_finished = GNUNET_YES; | ||
1663 | ss->override_available_acks = GNUNET_NO; | ||
1664 | if (ss->sender->kce_send_ack_on_finish == GNUNET_YES) | ||
1665 | consider_ss_ack (ss); | ||
1666 | } | ||
1667 | |||
1668 | |||
1669 | /** | ||
1670 | * Test if we have received a valid message in plaintext. | ||
1671 | * If so, handle it. | ||
1672 | * | ||
1673 | * @param sender peer to process inbound plaintext for | ||
1674 | * @param buf buffer we received | ||
1675 | * @param buf_size number of bytes in @a buf | ||
1676 | */ | ||
1677 | static void | ||
1678 | try_handle_plaintext (struct SenderAddress *sender, | ||
1679 | const void *buf, | ||
1680 | size_t buf_size) | ||
1681 | { | ||
1682 | const struct GNUNET_MessageHeader *hdr; | ||
1683 | const struct UDPAck *ack; | ||
1684 | const struct UDPRekey *rekey; | ||
1685 | struct SharedSecret *ss_rekey; | ||
1686 | const char *buf_pos = buf; | ||
1687 | size_t bytes_remaining = buf_size; | ||
1688 | uint16_t type; | ||
1689 | |||
1690 | hdr = (struct GNUNET_MessageHeader*) buf_pos; | ||
1691 | if (sizeof(*hdr) > bytes_remaining) | ||
1692 | { | ||
1693 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Plaintext too short, dropping...\n"); | ||
1694 | return; /* no data left */ | ||
1695 | } | ||
1696 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1697 | "try_handle_plaintext of size %llu (%u %lu) and type %u\n", | ||
1698 | (unsigned long long) bytes_remaining, | ||
1699 | ntohs (hdr->size), | ||
1700 | sizeof(*hdr), | ||
1701 | ntohs (hdr->type)); | ||
1702 | if (ntohs (hdr->size) > bytes_remaining) | ||
1703 | return; /* buffer too short for indicated message length */ | ||
1704 | type = ntohs (hdr->type); | ||
1705 | switch (type) | ||
1706 | { | ||
1707 | case GNUNET_MESSAGE_TYPE_COMMUNICATOR_UDP_REKEY: | ||
1708 | rekey = (struct UDPRekey*) buf_pos; | ||
1709 | ss_rekey = setup_shared_secret_dec (&rekey->ephemeral); | ||
1710 | ss_rekey->sender = sender; | ||
1711 | GNUNET_CONTAINER_DLL_insert (sender->ss_head, sender->ss_tail, ss_rekey); | ||
1712 | sender->num_secrets++; | ||
1713 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1714 | "Received rekey secret with cmac %s\n", | ||
1715 | GNUNET_h2s (&(ss_rekey->cmac))); | ||
1716 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1717 | "Received secret with master %s.\n", | ||
1718 | GNUNET_h2s (&(ss_rekey->master))); | ||
1719 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1720 | "We have %u sequence_allowed.\n", | ||
1721 | ss_rekey->sequence_allowed); | ||
1722 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1723 | "We have a sender %p\n", | ||
1724 | ss_rekey->sender); | ||
1725 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1726 | "We have %u acks available.\n", | ||
1727 | ss_rekey->sender->acks_available); | ||
1728 | GNUNET_STATISTICS_update (stats, | ||
1729 | "# rekeying successful", | ||
1730 | 1, | ||
1731 | GNUNET_NO); | ||
1732 | ss_rekey->sender->kce_send_ack_on_finish = GNUNET_YES; | ||
1733 | ss_rekey->override_available_acks = GNUNET_YES; | ||
1734 | // FIXME | ||
1735 | kce_generate_cb (ss_rekey); | ||
1736 | /* ss_rekey->sender->kce_task = GNUNET_SCHEDULER_add_delayed ( | ||
1737 | WORKING_QUEUE_INTERVALL, | ||
1738 | kce_generate_cb, | ||
1739 | ss_rekey);*/ | ||
1740 | // FIXME: Theoretically, this could be an Ack | ||
1741 | buf_pos += ntohs (hdr->size); | ||
1742 | bytes_remaining -= ntohs (hdr->size); | ||
1743 | pass_plaintext_to_core (sender, buf_pos, bytes_remaining); | ||
1744 | if (0 == purge_secrets (sender->ss_tail)) | ||
1745 | { | ||
1746 | // No secret purged. Delete oldest. | ||
1747 | if (sender->num_secrets > MAX_SECRETS) | ||
1748 | { | ||
1749 | secret_destroy (sender->ss_tail); | ||
1750 | } | ||
1751 | } | ||
1752 | break; | ||
1753 | case GNUNET_MESSAGE_TYPE_COMMUNICATOR_UDP_ACK: | ||
1754 | /* lookup master secret by 'cmac', then update sequence_max */ | ||
1755 | ack = (struct UDPAck*) buf_pos; | ||
1756 | GNUNET_CONTAINER_multihashmap_get_multiple (receivers, | ||
1757 | &sender->key, | ||
1758 | &handle_ack, | ||
1759 | (void *) ack); | ||
1760 | /* There could be more messages after the ACK, handle those as well */ | ||
1761 | buf_pos += ntohs (hdr->size); | ||
1762 | bytes_remaining -= ntohs (hdr->size); | ||
1763 | pass_plaintext_to_core (sender, buf_pos, bytes_remaining); | ||
1764 | break; | ||
1765 | |||
1766 | case GNUNET_MESSAGE_TYPE_COMMUNICATOR_UDP_PAD: | ||
1767 | /* skip padding */ | ||
1768 | break; | ||
1769 | |||
1770 | default: | ||
1771 | pass_plaintext_to_core (sender, buf_pos, bytes_remaining); | ||
1772 | } | ||
1773 | return; | ||
1774 | } | ||
1775 | |||
1776 | |||
1777 | /** | ||
1778 | * We received a @a box with matching @a kce. Decrypt and process it. | ||
1779 | * | ||
1780 | * @param box the data we received | ||
1781 | * @param box_len number of bytes in @a box | ||
1782 | * @param kce key index to decrypt @a box | ||
1783 | */ | ||
1784 | static void | ||
1785 | decrypt_box (const struct UDPBox *box, | ||
1786 | size_t box_len, | ||
1787 | struct KeyCacheEntry *kce) | ||
1788 | { | ||
1789 | struct SharedSecret *ss = kce->ss; | ||
1790 | struct SharedSecret *ss_c = ss->sender->ss_tail; | ||
1791 | struct SharedSecret *ss_tmp; | ||
1792 | int ss_destroyed = 0; | ||
1793 | char out_buf[box_len - sizeof(*box)]; | ||
1794 | |||
1795 | GNUNET_assert (NULL != ss->sender); | ||
1796 | if (GNUNET_OK != try_decrypt (ss, | ||
1797 | box->gcm_tag, | ||
1798 | kce->sequence_number, | ||
1799 | (const char *) &box[1], | ||
1800 | sizeof(out_buf), | ||
1801 | out_buf)) | ||
1802 | { | ||
1803 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed decryption.\n"); | ||
1804 | GNUNET_STATISTICS_update (stats, | ||
1805 | "# Decryption failures with valid KCE", | ||
1806 | 1, | ||
1807 | GNUNET_NO); | ||
1808 | kce_destroy (kce); | ||
1809 | ss->sender->acks_available--; | ||
1810 | return; | ||
1811 | } | ||
1812 | kce_destroy (kce); | ||
1813 | kce = NULL; | ||
1814 | ss->bytes_sent += box_len; | ||
1815 | ss->sender->acks_available--; | ||
1816 | ss->sequence_used++; | ||
1817 | GNUNET_STATISTICS_update (stats, | ||
1818 | "# bytes decrypted with BOX", | ||
1819 | sizeof(out_buf), | ||
1820 | GNUNET_NO); | ||
1821 | GNUNET_STATISTICS_update (stats, | ||
1822 | "# messages decrypted with BOX", | ||
1823 | 1, | ||
1824 | GNUNET_NO); | ||
1825 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1826 | "decrypted UDPBox with kid %s\n", | ||
1827 | GNUNET_sh2s (&box->kid)); | ||
1828 | try_handle_plaintext (ss->sender, out_buf, sizeof(out_buf)); | ||
1829 | |||
1830 | while (NULL != ss_c) | ||
1831 | { | ||
1832 | if (ss_c->bytes_sent >= rekey_max_bytes) | ||
1833 | { | ||
1834 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1835 | "Removing SS because rekey bytes reached.\n"); | ||
1836 | ss_tmp = ss_c->prev; | ||
1837 | if (ss == ss_c) | ||
1838 | ss_destroyed = 1; | ||
1839 | secret_destroy (ss_c); | ||
1840 | ss_c = ss_tmp; | ||
1841 | continue; | ||
1842 | } | ||
1843 | ss_c = ss_c->prev; | ||
1844 | } | ||
1845 | if (1 == ss_destroyed) | ||
1846 | return; | ||
1847 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1848 | "Sender has %u ack left.\n", | ||
1849 | ss->sender->acks_available); | ||
1850 | if ((KCN_THRESHOLD > ss->sender->acks_available) && | ||
1851 | (NULL == ss->sender->kce_task) && | ||
1852 | (GNUNET_YES == ss->sender->kce_task_finished)) | ||
1853 | { | ||
1854 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1855 | "Sender has %u ack left which is under threshold.\n", | ||
1856 | ss->sender->acks_available); | ||
1857 | ss->sender->kce_send_ack_on_finish = GNUNET_YES; | ||
1858 | ss->sender->kce_task = GNUNET_SCHEDULER_add_now ( | ||
1859 | kce_generate_cb, | ||
1860 | ss); | ||
1861 | } | ||
1862 | } | ||
1863 | |||
1864 | |||
1865 | /** | ||
1866 | * Closure for #find_sender_by_address() | ||
1867 | */ | ||
1868 | struct SearchContext | ||
1869 | { | ||
1870 | /** | ||
1871 | * Address we are looking for. | ||
1872 | */ | ||
1873 | const struct sockaddr *address; | ||
1874 | |||
1875 | /** | ||
1876 | * Number of bytes in @e address. | ||
1877 | */ | ||
1878 | socklen_t address_len; | ||
1879 | |||
1880 | /** | ||
1881 | * Return value to set if we found a match. | ||
1882 | */ | ||
1883 | struct SenderAddress *sender; | ||
1884 | }; | ||
1885 | |||
1886 | |||
1887 | /** | ||
1888 | * Create sender address for @a target. Note that we | ||
1889 | * might already have one, so a fresh one is only allocated | ||
1890 | * if one does not yet exist for @a address. | ||
1891 | * | ||
1892 | * @param target peer to generate address for | ||
1893 | * @param address target address | ||
1894 | * @param address_len number of bytes in @a address | ||
1895 | * @return data structure to keep track of key material for | ||
1896 | * decrypting data from @a target | ||
1897 | */ | ||
1898 | static struct SenderAddress * | ||
1899 | setup_sender (const struct GNUNET_PeerIdentity *target, | ||
1900 | const struct sockaddr *address, | ||
1901 | socklen_t address_len) | ||
1902 | { | ||
1903 | struct SenderAddress *sender; | ||
1904 | struct GNUNET_HashContext *hsh; | ||
1905 | struct GNUNET_HashCode sender_key; | ||
1906 | |||
1907 | hsh = GNUNET_CRYPTO_hash_context_start (); | ||
1908 | GNUNET_CRYPTO_hash_context_read (hsh, address, address_len); | ||
1909 | GNUNET_CRYPTO_hash_context_read (hsh, target, sizeof(*target)); | ||
1910 | GNUNET_CRYPTO_hash_context_finish (hsh, &sender_key); | ||
1911 | |||
1912 | sender = GNUNET_CONTAINER_multihashmap_get (senders, &sender_key); | ||
1913 | if (NULL != sender) | ||
1914 | { | ||
1915 | reschedule_sender_timeout (sender); | ||
1916 | return sender; | ||
1917 | } | ||
1918 | sender = GNUNET_new (struct SenderAddress); | ||
1919 | sender->key = sender_key; | ||
1920 | sender->target = *target; | ||
1921 | sender->address = GNUNET_memdup (address, address_len); | ||
1922 | sender->address_len = address_len; | ||
1923 | (void) GNUNET_CONTAINER_multihashmap_put ( | ||
1924 | senders, | ||
1925 | &sender->key, | ||
1926 | sender, | ||
1927 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE); | ||
1928 | GNUNET_STATISTICS_set (stats, | ||
1929 | "# senders active", | ||
1930 | GNUNET_CONTAINER_multihashmap_size (receivers), | ||
1931 | GNUNET_NO); | ||
1932 | sender->timeout = | ||
1933 | GNUNET_TIME_relative_to_absolute (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT); | ||
1934 | sender->hn = GNUNET_CONTAINER_heap_insert (senders_heap, | ||
1935 | sender, | ||
1936 | sender->timeout.abs_value_us); | ||
1937 | sender->nt = GNUNET_NT_scanner_get_type (is, address, address_len); | ||
1938 | if (NULL == timeout_task) | ||
1939 | timeout_task = GNUNET_SCHEDULER_add_now (&check_timeouts, NULL); | ||
1940 | return sender; | ||
1941 | } | ||
1942 | |||
1943 | |||
1944 | /** | ||
1945 | * Check signature from @a uc against @a ephemeral. | ||
1946 | * | ||
1947 | * @param ephemeral key that is signed | ||
1948 | * @param uc signature of claimant | ||
1949 | * @return #GNUNET_OK if signature is valid | ||
1950 | */ | ||
1951 | static int | ||
1952 | verify_confirmation (const struct GNUNET_CRYPTO_EcdhePublicKey *ephemeral, | ||
1953 | const struct UDPConfirmation *uc) | ||
1954 | { | ||
1955 | struct UdpHandshakeSignature uhs; | ||
1956 | |||
1957 | uhs.purpose.purpose = htonl ( | ||
1958 | GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_UDP_HANDSHAKE); | ||
1959 | uhs.purpose.size = htonl (sizeof(uhs)); | ||
1960 | uhs.sender = uc->sender; | ||
1961 | uhs.receiver = my_identity; | ||
1962 | uhs.ephemeral = *ephemeral; | ||
1963 | uhs.monotonic_time = uc->monotonic_time; | ||
1964 | return GNUNET_CRYPTO_eddsa_verify ( | ||
1965 | GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_UDP_HANDSHAKE, | ||
1966 | &uhs, | ||
1967 | &uc->sender_sig, | ||
1968 | &uc->sender.public_key); | ||
1969 | } | ||
1970 | |||
1971 | |||
1972 | /** | ||
1973 | * Converts @a address to the address string format used by this | ||
1974 | * communicator in HELLOs. | ||
1975 | * | ||
1976 | * @param address the address to convert, must be AF_INET or AF_INET6. | ||
1977 | * @param address_len number of bytes in @a address | ||
1978 | * @return string representation of @a address | ||
1979 | */ | ||
1980 | static char * | ||
1981 | sockaddr_to_udpaddr_string (const struct sockaddr *address, | ||
1982 | socklen_t address_len) | ||
1983 | { | ||
1984 | char *ret; | ||
1985 | |||
1986 | switch (address->sa_family) | ||
1987 | { | ||
1988 | case AF_INET: | ||
1989 | GNUNET_asprintf (&ret, | ||
1990 | "%s-%s", | ||
1991 | COMMUNICATOR_ADDRESS_PREFIX, | ||
1992 | GNUNET_a2s (address, address_len)); | ||
1993 | break; | ||
1994 | |||
1995 | case AF_INET6: | ||
1996 | GNUNET_asprintf (&ret, | ||
1997 | "%s-%s", | ||
1998 | COMMUNICATOR_ADDRESS_PREFIX, | ||
1999 | GNUNET_a2s (address, address_len)); | ||
2000 | break; | ||
2001 | |||
2002 | default: | ||
2003 | GNUNET_assert (0); | ||
2004 | } | ||
2005 | return ret; | ||
2006 | } | ||
2007 | |||
2008 | |||
2009 | /** | ||
2010 | * Socket read task. | ||
2011 | * | ||
2012 | * @param cls NULL | ||
2013 | */ | ||
2014 | static void | ||
2015 | sock_read (void *cls) | ||
2016 | { | ||
2017 | struct sockaddr_storage sa; | ||
2018 | struct sockaddr_in *addr_verify; | ||
2019 | socklen_t salen = sizeof(sa); | ||
2020 | char buf[UINT16_MAX]; | ||
2021 | ssize_t rcvd; | ||
2022 | |||
2023 | (void) cls; | ||
2024 | read_task = GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
2025 | udp_sock, | ||
2026 | &sock_read, | ||
2027 | NULL); | ||
2028 | while (1) | ||
2029 | { | ||
2030 | rcvd = GNUNET_NETWORK_socket_recvfrom (udp_sock, | ||
2031 | buf, | ||
2032 | sizeof(buf), | ||
2033 | (struct sockaddr *) &sa, | ||
2034 | &salen); | ||
2035 | if (-1 == rcvd) | ||
2036 | { | ||
2037 | struct sockaddr *addr = (struct sockaddr*) &sa; | ||
2038 | |||
2039 | if (EAGAIN == errno) | ||
2040 | break; // We are done reading data | ||
2041 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
2042 | "Failed to recv from %s family %d failed sock %p\n", | ||
2043 | GNUNET_a2s ((struct sockaddr*) &sa, | ||
2044 | sizeof (*addr)), | ||
2045 | addr->sa_family, | ||
2046 | udp_sock); | ||
2047 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "recv"); | ||
2048 | return; | ||
2049 | } | ||
2050 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2051 | "Read %llu bytes\n", | ||
2052 | (unsigned long long) rcvd); | ||
2053 | if (0 == rcvd) | ||
2054 | { | ||
2055 | GNUNET_break_op (0); | ||
2056 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2057 | "Read 0 bytes from UDP socket\n"); | ||
2058 | return; | ||
2059 | } | ||
2060 | |||
2061 | /* first, see if it is a UDPBox */ | ||
2062 | if (rcvd > sizeof(struct UDPBox)) | ||
2063 | { | ||
2064 | const struct UDPBox *box; | ||
2065 | struct KeyCacheEntry *kce; | ||
2066 | |||
2067 | box = (const struct UDPBox *) buf; | ||
2068 | kce = GNUNET_CONTAINER_multishortmap_get (key_cache, &box->kid); | ||
2069 | if (NULL != kce) | ||
2070 | { | ||
2071 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2072 | "Found KCE with kid %s\n", | ||
2073 | GNUNET_sh2s (&box->kid)); | ||
2074 | decrypt_box (box, (size_t) rcvd, kce); | ||
2075 | continue; | ||
2076 | } | ||
2077 | } | ||
2078 | |||
2079 | /* next, check if it is a broadcast */ | ||
2080 | if (sizeof(struct UDPBroadcast) == rcvd) | ||
2081 | { | ||
2082 | const struct UDPBroadcast *ub; | ||
2083 | struct UdpBroadcastSignature uhs; | ||
2084 | struct GNUNET_PeerIdentity sender; | ||
2085 | |||
2086 | addr_verify = GNUNET_memdup (&sa, salen); | ||
2087 | addr_verify->sin_port = 0; | ||
2088 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2089 | "received UDPBroadcast from %s\n", | ||
2090 | GNUNET_a2s ((const struct sockaddr *) addr_verify, salen)); | ||
2091 | ub = (const struct UDPBroadcast *) buf; | ||
2092 | uhs.purpose.purpose = htonl ( | ||
2093 | GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_UDP_BROADCAST); | ||
2094 | uhs.purpose.size = htonl (sizeof(uhs)); | ||
2095 | uhs.sender = ub->sender; | ||
2096 | sender = ub->sender; | ||
2097 | if (0 == memcmp (&sender, &my_identity, sizeof (struct | ||
2098 | GNUNET_PeerIdentity))) | ||
2099 | { | ||
2100 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2101 | "Received our own broadcast\n"); | ||
2102 | GNUNET_free (addr_verify); | ||
2103 | continue; | ||
2104 | } | ||
2105 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2106 | "checking UDPBroadcastSignature for %s\n", | ||
2107 | GNUNET_i2s (&sender)); | ||
2108 | GNUNET_CRYPTO_hash ((struct sockaddr *) addr_verify, salen, | ||
2109 | &uhs.h_address); | ||
2110 | if (GNUNET_OK == | ||
2111 | GNUNET_CRYPTO_eddsa_verify ( | ||
2112 | GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_UDP_BROADCAST, | ||
2113 | &uhs, | ||
2114 | &ub->sender_sig, | ||
2115 | &ub->sender.public_key)) | ||
2116 | { | ||
2117 | char *addr_s; | ||
2118 | enum GNUNET_NetworkType nt; | ||
2119 | |||
2120 | addr_s = | ||
2121 | sockaddr_to_udpaddr_string ((const struct sockaddr *) &sa, salen); | ||
2122 | GNUNET_STATISTICS_update (stats, "# broadcasts received", 1, GNUNET_NO); | ||
2123 | /* use our own mechanism to determine network type */ | ||
2124 | nt = | ||
2125 | GNUNET_NT_scanner_get_type (is, (const struct sockaddr *) &sa, salen); | ||
2126 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2127 | "validating address %s received from UDPBroadcast\n", | ||
2128 | GNUNET_i2s (&sender)); | ||
2129 | GNUNET_TRANSPORT_application_validate (ah, &sender, nt, addr_s); | ||
2130 | GNUNET_free (addr_s); | ||
2131 | GNUNET_free (addr_verify); | ||
2132 | continue; | ||
2133 | } | ||
2134 | else | ||
2135 | { | ||
2136 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
2137 | "VerifyingPeer %s is verifying UDPBroadcast\n", | ||
2138 | GNUNET_i2s (&my_identity)); | ||
2139 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
2140 | "Verifying UDPBroadcast from %s failed\n", | ||
2141 | GNUNET_i2s (&ub->sender)); | ||
2142 | } | ||
2143 | GNUNET_free (addr_verify); | ||
2144 | /* continue with KX, mostly for statistics... */ | ||
2145 | } | ||
2146 | |||
2147 | |||
2148 | /* finally, test if it is a KX */ | ||
2149 | if (rcvd < sizeof(struct UDPConfirmation) + sizeof(struct InitialKX)) | ||
2150 | { | ||
2151 | GNUNET_STATISTICS_update (stats, | ||
2152 | "# messages dropped (no kid, too small for KX)", | ||
2153 | 1, | ||
2154 | GNUNET_NO); | ||
2155 | continue; | ||
2156 | } | ||
2157 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2158 | "Got KX\n"); | ||
2159 | { | ||
2160 | const struct InitialKX *kx; | ||
2161 | struct SharedSecret *ss; | ||
2162 | char pbuf[rcvd - sizeof(struct InitialKX)]; | ||
2163 | const struct UDPConfirmation *uc; | ||
2164 | struct SenderAddress *sender; | ||
2165 | |||
2166 | kx = (const struct InitialKX *) buf; | ||
2167 | ss = setup_initial_shared_secret_dec (&kx->representative); | ||
2168 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2169 | "Before DEC\n"); | ||
2170 | |||
2171 | if (GNUNET_OK != try_decrypt (ss, | ||
2172 | kx->gcm_tag, | ||
2173 | 0, | ||
2174 | &buf[sizeof(*kx)], | ||
2175 | sizeof(pbuf), | ||
2176 | pbuf)) | ||
2177 | { | ||
2178 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2179 | "Unable to decrypt tag, dropping...\n"); | ||
2180 | GNUNET_free (ss); | ||
2181 | GNUNET_STATISTICS_update ( | ||
2182 | stats, | ||
2183 | "# messages dropped (no kid, AEAD decryption failed)", | ||
2184 | 1, | ||
2185 | GNUNET_NO); | ||
2186 | continue; | ||
2187 | } | ||
2188 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2189 | "Before VERIFY\n"); | ||
2190 | |||
2191 | uc = (const struct UDPConfirmation *) pbuf; | ||
2192 | |||
2193 | struct GNUNET_CRYPTO_EcdhePublicKey pub_ephemeral; | ||
2194 | GNUNET_CRYPTO_ecdhe_elligator_decoding (&pub_ephemeral, NULL, | ||
2195 | &kx->representative); | ||
2196 | if (GNUNET_OK != verify_confirmation (&pub_ephemeral, uc)) // TODO: need ephemeral instead of representative | ||
2197 | { | ||
2198 | GNUNET_break_op (0); | ||
2199 | GNUNET_free (ss); | ||
2200 | GNUNET_STATISTICS_update (stats, | ||
2201 | "# messages dropped (sender signature invalid)", | ||
2202 | 1, | ||
2203 | GNUNET_NO); | ||
2204 | continue; | ||
2205 | } | ||
2206 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2207 | "Before SETUP_SENDER\n"); | ||
2208 | |||
2209 | calculate_cmac (ss); | ||
2210 | sender = setup_sender (&uc->sender, (const struct sockaddr *) &sa, salen); | ||
2211 | ss->sender = sender; | ||
2212 | GNUNET_CONTAINER_DLL_insert (sender->ss_head, sender->ss_tail, ss); | ||
2213 | if ((KCN_THRESHOLD > ss->sender->acks_available) && | ||
2214 | (NULL == ss->sender->kce_task) && | ||
2215 | (GNUNET_NO == ss->sender->kce_task_finished)) | ||
2216 | { | ||
2217 | // TODO This task must be per sender! FIXME: This is a nice todo, but I do not know what must be done here to fix. | ||
2218 | ss->sender->kce_send_ack_on_finish = GNUNET_YES; | ||
2219 | ss->sender->kce_task = GNUNET_SCHEDULER_add_now ( | ||
2220 | kce_generate_cb, | ||
2221 | ss); | ||
2222 | } | ||
2223 | sender->num_secrets++; | ||
2224 | GNUNET_STATISTICS_update (stats, "# Secrets active", 1, GNUNET_NO); | ||
2225 | GNUNET_STATISTICS_update (stats, | ||
2226 | "# messages decrypted without BOX", | ||
2227 | 1, | ||
2228 | GNUNET_NO); | ||
2229 | try_handle_plaintext (sender, &uc[1], sizeof(pbuf) - sizeof(*uc)); | ||
2230 | if (0 == purge_secrets (sender->ss_tail)) | ||
2231 | { | ||
2232 | // No secret purged. Delete oldest. | ||
2233 | if (sender->num_secrets > MAX_SECRETS) | ||
2234 | { | ||
2235 | secret_destroy (sender->ss_tail); | ||
2236 | } | ||
2237 | } | ||
2238 | } | ||
2239 | } | ||
2240 | } | ||
2241 | |||
2242 | |||
2243 | /** | ||
2244 | * Convert UDP bind specification to a `struct sockaddr *` | ||
2245 | * | ||
2246 | * @param bindto bind specification to convert | ||
2247 | * @param[out] sock_len set to the length of the address | ||
2248 | * @return converted bindto specification | ||
2249 | */ | ||
2250 | static struct sockaddr * | ||
2251 | udp_address_to_sockaddr (const char *bindto, socklen_t *sock_len) | ||
2252 | { | ||
2253 | struct sockaddr *in; | ||
2254 | unsigned int port; | ||
2255 | char dummy[2]; | ||
2256 | char *colon; | ||
2257 | char *cp; | ||
2258 | |||
2259 | if (1 == sscanf (bindto, "%u%1s", &port, dummy)) | ||
2260 | { | ||
2261 | /* interpreting value as just a PORT number */ | ||
2262 | if (port > UINT16_MAX) | ||
2263 | { | ||
2264 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
2265 | "BINDTO specification `%s' invalid: value too large for port\n", | ||
2266 | bindto); | ||
2267 | return NULL; | ||
2268 | } | ||
2269 | if (GNUNET_YES == disable_v6) | ||
2270 | { | ||
2271 | struct sockaddr_in *i4; | ||
2272 | |||
2273 | i4 = GNUNET_malloc (sizeof(struct sockaddr_in)); | ||
2274 | i4->sin_family = AF_INET; | ||
2275 | i4->sin_port = htons ((uint16_t) port); | ||
2276 | *sock_len = sizeof(struct sockaddr_in); | ||
2277 | in = (struct sockaddr *) i4; | ||
2278 | } | ||
2279 | else | ||
2280 | { | ||
2281 | struct sockaddr_in6 *i6; | ||
2282 | |||
2283 | i6 = GNUNET_malloc (sizeof(struct sockaddr_in6)); | ||
2284 | i6->sin6_family = AF_INET6; | ||
2285 | i6->sin6_port = htons ((uint16_t) port); | ||
2286 | *sock_len = sizeof(struct sockaddr_in6); | ||
2287 | in = (struct sockaddr *) i6; | ||
2288 | } | ||
2289 | return in; | ||
2290 | } | ||
2291 | cp = GNUNET_strdup (bindto); | ||
2292 | colon = strrchr (cp, ':'); | ||
2293 | if (NULL != colon) | ||
2294 | { | ||
2295 | /* interpret value after colon as port */ | ||
2296 | *colon = '\0'; | ||
2297 | colon++; | ||
2298 | if (1 == sscanf (colon, "%u%1s", &port, dummy)) | ||
2299 | { | ||
2300 | /* interpreting value as just a PORT number */ | ||
2301 | if (port > UINT16_MAX) | ||
2302 | { | ||
2303 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
2304 | "BINDTO specification `%s' invalid: value too large for port\n", | ||
2305 | bindto); | ||
2306 | GNUNET_free (cp); | ||
2307 | return NULL; | ||
2308 | } | ||
2309 | } | ||
2310 | else | ||
2311 | { | ||
2312 | GNUNET_log ( | ||
2313 | GNUNET_ERROR_TYPE_ERROR, | ||
2314 | "BINDTO specification `%s' invalid: last ':' not followed by number\n", | ||
2315 | bindto); | ||
2316 | GNUNET_free (cp); | ||
2317 | return NULL; | ||
2318 | } | ||
2319 | } | ||
2320 | else | ||
2321 | { | ||
2322 | /* interpret missing port as 0, aka pick any free one */ | ||
2323 | port = 0; | ||
2324 | } | ||
2325 | { | ||
2326 | /* try IPv4 */ | ||
2327 | struct sockaddr_in v4; | ||
2328 | |||
2329 | memset (&v4, 0, sizeof(v4)); | ||
2330 | if (1 == inet_pton (AF_INET, cp, &v4.sin_addr)) | ||
2331 | { | ||
2332 | v4.sin_family = AF_INET; | ||
2333 | v4.sin_port = htons ((uint16_t) port); | ||
2334 | #if HAVE_SOCKADDR_IN_SIN_LEN | ||
2335 | v4.sin_len = sizeof(struct sockaddr_in); | ||
2336 | #endif | ||
2337 | in = GNUNET_memdup (&v4, sizeof(struct sockaddr_in)); | ||
2338 | *sock_len = sizeof(struct sockaddr_in); | ||
2339 | GNUNET_free (cp); | ||
2340 | return in; | ||
2341 | } | ||
2342 | } | ||
2343 | { | ||
2344 | /* try IPv6 */ | ||
2345 | struct sockaddr_in6 v6; | ||
2346 | const char *start; | ||
2347 | |||
2348 | memset (&v6, 0, sizeof(v6)); | ||
2349 | start = cp; | ||
2350 | if (('[' == *cp) && (']' == cp[strlen (cp) - 1])) | ||
2351 | { | ||
2352 | start++; /* skip over '[' */ | ||
2353 | cp[strlen (cp) - 1] = '\0'; /* eat ']' */ | ||
2354 | } | ||
2355 | if (1 == inet_pton (AF_INET6, start, &v6.sin6_addr)) | ||
2356 | { | ||
2357 | v6.sin6_family = AF_INET6; | ||
2358 | v6.sin6_port = htons ((uint16_t) port); | ||
2359 | #if HAVE_SOCKADDR_IN_SIN_LEN | ||
2360 | v6.sin6_len = sizeof(struct sockaddr_in6); | ||
2361 | #endif | ||
2362 | in = GNUNET_memdup (&v6, sizeof(v6)); | ||
2363 | *sock_len = sizeof(v6); | ||
2364 | GNUNET_free (cp); | ||
2365 | return in; | ||
2366 | } | ||
2367 | } | ||
2368 | /* #5528 FIXME (feature!): maybe also try getnameinfo()? */ | ||
2369 | GNUNET_free (cp); | ||
2370 | return NULL; | ||
2371 | } | ||
2372 | |||
2373 | |||
2374 | /** | ||
2375 | * Pad @a dgram by @a pad_size using @a out_cipher. | ||
2376 | * | ||
2377 | * @param out_cipher cipher to use | ||
2378 | * @param dgram datagram to pad | ||
2379 | * @param pad_size number of bytes of padding to append | ||
2380 | */ | ||
2381 | static void | ||
2382 | do_pad (gcry_cipher_hd_t out_cipher, char *dgram, size_t pad_size) | ||
2383 | { | ||
2384 | char pad[pad_size]; | ||
2385 | |||
2386 | GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK, pad, sizeof(pad)); | ||
2387 | if (sizeof(pad) > sizeof(struct GNUNET_MessageHeader)) | ||
2388 | { | ||
2389 | struct GNUNET_MessageHeader hdr = | ||
2390 | { .size = htons (sizeof(pad)), | ||
2391 | .type = htons (GNUNET_MESSAGE_TYPE_COMMUNICATOR_UDP_PAD) }; | ||
2392 | |||
2393 | memcpy (pad, &hdr, sizeof(hdr)); | ||
2394 | } | ||
2395 | GNUNET_assert ( | ||
2396 | 0 == | ||
2397 | gcry_cipher_encrypt (out_cipher, dgram, sizeof(pad), pad, sizeof(pad))); | ||
2398 | } | ||
2399 | |||
2400 | |||
2401 | static void | ||
2402 | send_msg_with_kx (const struct GNUNET_MessageHeader *msg, struct | ||
2403 | ReceiverAddress *receiver, | ||
2404 | struct GNUNET_MQ_Handle *mq) | ||
2405 | { | ||
2406 | uint16_t msize = ntohs (msg->size); | ||
2407 | struct UdpHandshakeSignature uhs; | ||
2408 | struct UDPConfirmation uc; | ||
2409 | struct InitialKX kx; | ||
2410 | char dgram[receiver->kx_mtu + sizeof(uc) + sizeof(kx)]; | ||
2411 | size_t dpos; | ||
2412 | gcry_cipher_hd_t out_cipher; | ||
2413 | struct SharedSecret *ss; | ||
2414 | |||
2415 | if (msize > receiver->kx_mtu) | ||
2416 | { | ||
2417 | GNUNET_break (0); | ||
2418 | if (GNUNET_YES != receiver->receiver_destroy_called) | ||
2419 | receiver_destroy (receiver); | ||
2420 | return; | ||
2421 | } | ||
2422 | reschedule_receiver_timeout (receiver); | ||
2423 | |||
2424 | /* setup key material */ | ||
2425 | struct GNUNET_CRYPTO_ElligatorRepresentative repr; | ||
2426 | ss = setup_initial_shared_secret_ephemeral (&repr, receiver); | ||
2427 | GNUNET_CRYPTO_ecdhe_elligator_decoding (&uhs.ephemeral, NULL, | ||
2428 | &repr); | ||
2429 | |||
2430 | if (0 == purge_secrets (receiver->ss_tail)) | ||
2431 | { | ||
2432 | // No secret purged. Delete oldest. | ||
2433 | if (receiver->num_secrets > MAX_SECRETS) | ||
2434 | { | ||
2435 | secret_destroy (receiver->ss_tail); | ||
2436 | } | ||
2437 | } | ||
2438 | |||
2439 | setup_cipher (&ss->master, 0, &out_cipher); | ||
2440 | /* compute 'uc' */ | ||
2441 | uc.sender = my_identity; | ||
2442 | uc.monotonic_time = | ||
2443 | GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get_monotonic (cfg)); | ||
2444 | uhs.purpose.purpose = htonl ( | ||
2445 | GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_UDP_HANDSHAKE); | ||
2446 | uhs.purpose.size = htonl (sizeof(uhs)); | ||
2447 | uhs.sender = my_identity; | ||
2448 | uhs.receiver = receiver->target; | ||
2449 | uhs.monotonic_time = uc.monotonic_time; | ||
2450 | GNUNET_CRYPTO_eddsa_sign (my_private_key, | ||
2451 | &uhs, | ||
2452 | &uc.sender_sig); | ||
2453 | /* Leave space for kx */ | ||
2454 | dpos = sizeof(kx); | ||
2455 | /* Append encrypted uc to dgram */ | ||
2456 | GNUNET_assert (0 == gcry_cipher_encrypt (out_cipher, | ||
2457 | &dgram[dpos], | ||
2458 | sizeof(uc), | ||
2459 | &uc, | ||
2460 | sizeof(uc))); | ||
2461 | dpos += sizeof(uc); | ||
2462 | /* Append encrypted payload to dgram */ | ||
2463 | GNUNET_assert ( | ||
2464 | 0 == gcry_cipher_encrypt (out_cipher, &dgram[dpos], msize, msg, msize)); | ||
2465 | dpos += msize; | ||
2466 | do_pad (out_cipher, &dgram[dpos], sizeof(dgram) - dpos); | ||
2467 | /* Datagram starts with kx */ | ||
2468 | kx.representative = repr; | ||
2469 | GNUNET_assert ( | ||
2470 | 0 == gcry_cipher_gettag (out_cipher, kx.gcm_tag, sizeof(kx.gcm_tag))); | ||
2471 | gcry_cipher_close (out_cipher); | ||
2472 | memcpy (dgram, &kx, sizeof(kx)); | ||
2473 | if (-1 == GNUNET_NETWORK_socket_sendto (udp_sock, | ||
2474 | dgram, | ||
2475 | sizeof(dgram), | ||
2476 | receiver->address, | ||
2477 | receiver->address_len)) | ||
2478 | { | ||
2479 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "send"); | ||
2480 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
2481 | "Sending KX with payload size %u to %s family %d failed sock %p\n", | ||
2482 | msize, | ||
2483 | GNUNET_a2s (receiver->address, | ||
2484 | receiver->address_len), | ||
2485 | receiver->address->sa_family, | ||
2486 | udp_sock); | ||
2487 | GNUNET_MQ_impl_send_continue (mq); | ||
2488 | receiver_destroy (receiver); | ||
2489 | return; | ||
2490 | } | ||
2491 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2492 | "Sending KX with payload size %u to %s\n", | ||
2493 | msize, | ||
2494 | GNUNET_a2s (receiver->address, | ||
2495 | receiver->address_len)); | ||
2496 | GNUNET_MQ_impl_send_continue (mq); | ||
2497 | } | ||
2498 | |||
2499 | |||
2500 | /** | ||
2501 | * Signature of functions implementing the sending functionality of a | ||
2502 | * message queue. | ||
2503 | * | ||
2504 | * @param mq the message queue | ||
2505 | * @param msg the message to send | ||
2506 | * @param impl_state our `struct ReceiverAddress` | ||
2507 | */ | ||
2508 | static void | ||
2509 | mq_send_kx (struct GNUNET_MQ_Handle *mq, | ||
2510 | const struct GNUNET_MessageHeader *msg, | ||
2511 | void *impl_state) | ||
2512 | { | ||
2513 | struct ReceiverAddress *receiver = impl_state; | ||
2514 | |||
2515 | GNUNET_assert (mq == receiver->kx_mq); | ||
2516 | send_msg_with_kx (msg, receiver, mq); | ||
2517 | } | ||
2518 | |||
2519 | |||
2520 | static void | ||
2521 | create_rekey (struct ReceiverAddress *receiver, struct SharedSecret *ss, struct | ||
2522 | UDPRekey *rekey) | ||
2523 | { | ||
2524 | struct SharedSecret *ss_rekey; | ||
2525 | |||
2526 | ss->rekey_initiated = GNUNET_YES; | ||
2527 | /* setup key material */ | ||
2528 | ss_rekey = setup_shared_secret_ephemeral (&rekey->ephemeral, | ||
2529 | receiver); | ||
2530 | ss_rekey->sequence_allowed = 0; | ||
2531 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2532 | "Setup secret with k = %s\n", | ||
2533 | GNUNET_h2s (&(ss_rekey->master))); | ||
2534 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2535 | "Setup secret with H(k) = %s\n", | ||
2536 | GNUNET_h2s (&(ss_rekey->cmac))); | ||
2537 | |||
2538 | /* Append encrypted payload to dgram */ | ||
2539 | rekey->header.type = htons (GNUNET_MESSAGE_TYPE_COMMUNICATOR_UDP_REKEY); | ||
2540 | rekey->header.size = htons (sizeof (struct UDPRekey)); | ||
2541 | } | ||
2542 | |||
2543 | |||
2544 | /** | ||
2545 | * Signature of functions implementing the sending functionality of a | ||
2546 | * message queue. | ||
2547 | * | ||
2548 | * @param mq the message queue | ||
2549 | * @param msg the message to send | ||
2550 | * @param impl_state our `struct ReceiverAddress` | ||
2551 | */ | ||
2552 | static void | ||
2553 | mq_send_d (struct GNUNET_MQ_Handle *mq, | ||
2554 | const struct GNUNET_MessageHeader *msg, | ||
2555 | void *impl_state) | ||
2556 | { | ||
2557 | struct ReceiverAddress *receiver = impl_state; | ||
2558 | struct UDPRekey rekey; | ||
2559 | struct SharedSecret *ss; | ||
2560 | int inject_rekey = GNUNET_NO; | ||
2561 | uint16_t msize = ntohs (msg->size); | ||
2562 | |||
2563 | GNUNET_assert (mq == receiver->d_mq); | ||
2564 | if ((msize > receiver->d_mtu) || | ||
2565 | (0 == receiver->acks_available)) | ||
2566 | { | ||
2567 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
2568 | "msize: %u, mtu: %llu, acks: %u\n", | ||
2569 | (unsigned int) msize, | ||
2570 | (unsigned long long) receiver->d_mtu, | ||
2571 | receiver->acks_available); | ||
2572 | |||
2573 | GNUNET_break (0); | ||
2574 | if (GNUNET_YES != receiver->receiver_destroy_called) | ||
2575 | receiver_destroy (receiver); | ||
2576 | return; | ||
2577 | } | ||
2578 | reschedule_receiver_timeout (receiver); | ||
2579 | |||
2580 | if (receiver->num_secrets > MAX_SECRETS) | ||
2581 | { | ||
2582 | if ((0 == purge_secrets (receiver->ss_tail)) && | ||
2583 | (NULL != receiver->ss_tail)) | ||
2584 | { | ||
2585 | // No secret purged. Delete oldest. | ||
2586 | secret_destroy (receiver->ss_tail); | ||
2587 | } | ||
2588 | } | ||
2589 | /* begin "BOX" encryption method, scan for ACKs from tail! */ | ||
2590 | ss = receiver->ss_tail; | ||
2591 | struct SharedSecret *ss_tmp; | ||
2592 | while (NULL != ss) | ||
2593 | { | ||
2594 | size_t payload_len = sizeof(struct UDPBox) + receiver->d_mtu; | ||
2595 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2596 | "Considering SS %s sequence used: %u sequence allowed: %u bytes sent: %lu.\n", | ||
2597 | GNUNET_h2s (&ss->master), ss->sequence_used, | ||
2598 | ss->sequence_allowed, ss->bytes_sent); | ||
2599 | if (ss->sequence_used >= ss->sequence_allowed) | ||
2600 | { | ||
2601 | // GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2602 | // "Skipping ss because no acks to use.\n"); | ||
2603 | ss = ss->prev; | ||
2604 | continue; | ||
2605 | } | ||
2606 | if (ss->bytes_sent >= rekey_max_bytes) | ||
2607 | { | ||
2608 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2609 | "Skipping ss because rekey bytes reached.\n"); | ||
2610 | // FIXME cleanup ss with too many bytes sent! | ||
2611 | ss_tmp = ss->prev; | ||
2612 | secret_destroy (ss); | ||
2613 | ss = ss_tmp; | ||
2614 | continue; | ||
2615 | } | ||
2616 | if (ss->bytes_sent > rekey_max_bytes * 0.7) | ||
2617 | { | ||
2618 | if (ss->rekey_initiated == GNUNET_NO) | ||
2619 | { | ||
2620 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2621 | "Injecting rekey for ss with byte sent %lu\n", | ||
2622 | (unsigned long) ss->bytes_sent); | ||
2623 | create_rekey (receiver, ss, &rekey); | ||
2624 | inject_rekey = GNUNET_YES; | ||
2625 | payload_len += sizeof (rekey); | ||
2626 | ss->rekey_initiated = GNUNET_YES; | ||
2627 | } | ||
2628 | } | ||
2629 | if (0 < ss->sequence_used) | ||
2630 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2631 | "Trying to send UDPBox with shared secrect %s sequence_used %u and ss->sequence_allowed %u\n", | ||
2632 | GNUNET_h2s (&ss->master), | ||
2633 | ss->sequence_used, | ||
2634 | ss->sequence_allowed); | ||
2635 | |||
2636 | char dgram[payload_len]; | ||
2637 | struct UDPBox *box; | ||
2638 | gcry_cipher_hd_t out_cipher; | ||
2639 | size_t dpos; | ||
2640 | |||
2641 | box = (struct UDPBox *) dgram; | ||
2642 | ss->sequence_used++; | ||
2643 | get_kid (&ss->master, ss->sequence_used, &box->kid); | ||
2644 | setup_cipher (&ss->master, ss->sequence_used, &out_cipher); | ||
2645 | /* Append encrypted payload to dgram */ | ||
2646 | dpos = sizeof(struct UDPBox); | ||
2647 | if (GNUNET_YES == inject_rekey) | ||
2648 | { | ||
2649 | GNUNET_assert ( | ||
2650 | 0 == gcry_cipher_encrypt (out_cipher, &dgram[dpos], sizeof (rekey), | ||
2651 | &rekey, sizeof (rekey))); | ||
2652 | dpos += sizeof (rekey); | ||
2653 | } | ||
2654 | GNUNET_assert ( | ||
2655 | 0 == gcry_cipher_encrypt (out_cipher, &dgram[dpos], msize, msg, msize)); | ||
2656 | dpos += msize; | ||
2657 | do_pad (out_cipher, &dgram[dpos], sizeof(dgram) - dpos); | ||
2658 | GNUNET_assert (0 == gcry_cipher_gettag (out_cipher, | ||
2659 | box->gcm_tag, | ||
2660 | sizeof(box->gcm_tag))); | ||
2661 | gcry_cipher_close (out_cipher); | ||
2662 | |||
2663 | if (-1 == GNUNET_NETWORK_socket_sendto (udp_sock, | ||
2664 | dgram, | ||
2665 | payload_len, // FIXME why always send sizeof dgram? | ||
2666 | receiver->address, | ||
2667 | receiver->address_len)) | ||
2668 | { | ||
2669 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "send"); | ||
2670 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
2671 | "Sending UDPBox to %s family %d failed sock %p failed\n", | ||
2672 | GNUNET_a2s (receiver->address, | ||
2673 | receiver->address_len), | ||
2674 | receiver->address->sa_family, | ||
2675 | udp_sock); | ||
2676 | receiver_destroy (receiver); | ||
2677 | return; | ||
2678 | } | ||
2679 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2680 | "Sending UDPBox with payload size %u, %u acks left, %lu bytes sent\n", | ||
2681 | msize, | ||
2682 | receiver->acks_available, | ||
2683 | (unsigned long) ss->bytes_sent); | ||
2684 | ss->bytes_sent += sizeof (dgram); | ||
2685 | receiver->acks_available--; | ||
2686 | GNUNET_MQ_impl_send_continue (mq); | ||
2687 | return; | ||
2688 | } | ||
2689 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2690 | "No suitable ss found, sending as KX...\n"); | ||
2691 | send_msg_with_kx (msg, receiver, mq); | ||
2692 | } | ||
2693 | |||
2694 | |||
2695 | /** | ||
2696 | * Signature of functions implementing the destruction of a message | ||
2697 | * queue. Implementations must not free @a mq, but should take care | ||
2698 | * of @a impl_state. | ||
2699 | * | ||
2700 | * @param mq the message queue to destroy | ||
2701 | * @param impl_state our `struct ReceiverAddress` | ||
2702 | */ | ||
2703 | static void | ||
2704 | mq_destroy_d (struct GNUNET_MQ_Handle *mq, void *impl_state) | ||
2705 | { | ||
2706 | struct ReceiverAddress *receiver = impl_state; | ||
2707 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2708 | "Default MQ destroyed\n"); | ||
2709 | if (mq == receiver->d_mq) | ||
2710 | { | ||
2711 | receiver->d_mq = NULL; | ||
2712 | if (GNUNET_YES != receiver->receiver_destroy_called) | ||
2713 | receiver_destroy (receiver); | ||
2714 | } | ||
2715 | } | ||
2716 | |||
2717 | |||
2718 | /** | ||
2719 | * Signature of functions implementing the destruction of a message | ||
2720 | * queue. Implementations must not free @a mq, but should take care | ||
2721 | * of @a impl_state. | ||
2722 | * | ||
2723 | * @param mq the message queue to destroy | ||
2724 | * @param impl_state our `struct ReceiverAddress` | ||
2725 | */ | ||
2726 | static void | ||
2727 | mq_destroy_kx (struct GNUNET_MQ_Handle *mq, void *impl_state) | ||
2728 | { | ||
2729 | struct ReceiverAddress *receiver = impl_state; | ||
2730 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2731 | "KX MQ destroyed\n"); | ||
2732 | if (mq == receiver->kx_mq) | ||
2733 | { | ||
2734 | receiver->kx_mq = NULL; | ||
2735 | if (GNUNET_YES != receiver->receiver_destroy_called) | ||
2736 | receiver_destroy (receiver); | ||
2737 | } | ||
2738 | } | ||
2739 | |||
2740 | |||
2741 | /** | ||
2742 | * Implementation function that cancels the currently sent message. | ||
2743 | * | ||
2744 | * @param mq message queue | ||
2745 | * @param impl_state our `struct RecvierAddress` | ||
2746 | */ | ||
2747 | static void | ||
2748 | mq_cancel (struct GNUNET_MQ_Handle *mq, void *impl_state) | ||
2749 | { | ||
2750 | /* Cancellation is impossible with UDP; bail */ | ||
2751 | GNUNET_assert (0); | ||
2752 | } | ||
2753 | |||
2754 | |||
2755 | /** | ||
2756 | * Generic error handler, called with the appropriate | ||
2757 | * error code and the same closure specified at the creation of | ||
2758 | * the message queue. | ||
2759 | * Not every message queue implementation supports an error handler. | ||
2760 | * | ||
2761 | * @param cls our `struct ReceiverAddress` | ||
2762 | * @param error error code | ||
2763 | */ | ||
2764 | static void | ||
2765 | mq_error (void *cls, enum GNUNET_MQ_Error error) | ||
2766 | { | ||
2767 | struct ReceiverAddress *receiver = cls; | ||
2768 | |||
2769 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
2770 | "MQ error in queue to %s: %d\n", | ||
2771 | GNUNET_i2s (&receiver->target), | ||
2772 | (int) error); | ||
2773 | receiver_destroy (receiver); | ||
2774 | } | ||
2775 | |||
2776 | |||
2777 | /** | ||
2778 | * Setup the MQ for the @a receiver. If a queue exists, | ||
2779 | * the existing one is destroyed. Then the MTU is | ||
2780 | * recalculated and a fresh queue is initialized. | ||
2781 | * | ||
2782 | * @param receiver receiver to setup MQ for | ||
2783 | */ | ||
2784 | static void | ||
2785 | setup_receiver_mq (struct ReceiverAddress *receiver) | ||
2786 | { | ||
2787 | size_t base_mtu; | ||
2788 | |||
2789 | switch (receiver->address->sa_family) | ||
2790 | { | ||
2791 | case AF_INET: | ||
2792 | base_mtu = 1480 /* Ethernet MTU, 1500 - Ethernet header - VLAN tag */ | ||
2793 | - sizeof(struct GNUNET_TUN_IPv4Header) /* 20 */ | ||
2794 | - sizeof(struct GNUNET_TUN_UdpHeader) /* 8 */; | ||
2795 | break; | ||
2796 | |||
2797 | case AF_INET6: | ||
2798 | base_mtu = 1280 /* Minimum MTU required by IPv6 */ | ||
2799 | - sizeof(struct GNUNET_TUN_IPv6Header) /* 40 */ | ||
2800 | - sizeof(struct GNUNET_TUN_UdpHeader) /* 8 */; | ||
2801 | break; | ||
2802 | |||
2803 | default: | ||
2804 | GNUNET_assert (0); | ||
2805 | break; | ||
2806 | } | ||
2807 | /* MTU based on full KX messages */ | ||
2808 | receiver->kx_mtu = base_mtu - sizeof(struct InitialKX) /* 48 */ | ||
2809 | - sizeof(struct UDPConfirmation); /* 104 */ | ||
2810 | /* MTU based on BOXed messages */ | ||
2811 | receiver->d_mtu = base_mtu - sizeof(struct UDPBox); | ||
2812 | |||
2813 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2814 | "Setting up MQs and QHs\n"); | ||
2815 | /* => Effective MTU for CORE will range from 1080 (IPv6 + KX) to | ||
2816 | 1404 (IPv4 + Box) bytes, depending on circumstances... */ | ||
2817 | if (NULL == receiver->kx_mq) | ||
2818 | receiver->kx_mq = GNUNET_MQ_queue_for_callbacks (&mq_send_kx, | ||
2819 | &mq_destroy_kx, | ||
2820 | &mq_cancel, | ||
2821 | receiver, | ||
2822 | NULL, | ||
2823 | &mq_error, | ||
2824 | receiver); | ||
2825 | if (NULL == receiver->d_mq) | ||
2826 | receiver->d_mq = GNUNET_MQ_queue_for_callbacks (&mq_send_d, | ||
2827 | &mq_destroy_d, | ||
2828 | &mq_cancel, | ||
2829 | receiver, | ||
2830 | NULL, | ||
2831 | &mq_error, | ||
2832 | receiver); | ||
2833 | |||
2834 | receiver->kx_qh = | ||
2835 | GNUNET_TRANSPORT_communicator_mq_add (ch, | ||
2836 | &receiver->target, | ||
2837 | receiver->foreign_addr, | ||
2838 | receiver->kx_mtu, | ||
2839 | GNUNET_TRANSPORT_QUEUE_LENGTH_UNLIMITED, | ||
2840 | 0, /* Priority */ | ||
2841 | receiver->nt, | ||
2842 | GNUNET_TRANSPORT_CS_OUTBOUND, | ||
2843 | receiver->kx_mq); | ||
2844 | } | ||
2845 | |||
2846 | |||
2847 | /** | ||
2848 | * Function called by the transport service to initialize a | ||
2849 | * message queue given address information about another peer. | ||
2850 | * If and when the communication channel is established, the | ||
2851 | * communicator must call #GNUNET_TRANSPORT_communicator_mq_add() | ||
2852 | * to notify the service that the channel is now up. It is | ||
2853 | * the responsibility of the communicator to manage sane | ||
2854 | * retries and timeouts for any @a peer/@a address combination | ||
2855 | * provided by the transport service. Timeouts and retries | ||
2856 | * do not need to be signalled to the transport service. | ||
2857 | * | ||
2858 | * @param cls closure | ||
2859 | * @param peer identity of the other peer | ||
2860 | * @param address where to send the message, human-readable | ||
2861 | * communicator-specific format, 0-terminated, UTF-8 | ||
2862 | * @return #GNUNET_OK on success, #GNUNET_SYSERR if the provided address is | ||
2863 | * invalid | ||
2864 | */ | ||
2865 | static int | ||
2866 | mq_init (void *cls, const struct GNUNET_PeerIdentity *peer, const char *address) | ||
2867 | { | ||
2868 | struct ReceiverAddress *receiver; | ||
2869 | struct GNUNET_HashContext *hsh; | ||
2870 | struct GNUNET_HashCode receiver_key; | ||
2871 | const char *path; | ||
2872 | struct sockaddr *in; | ||
2873 | socklen_t in_len; | ||
2874 | |||
2875 | if (0 != strncmp (address, | ||
2876 | COMMUNICATOR_ADDRESS_PREFIX "-", | ||
2877 | strlen (COMMUNICATOR_ADDRESS_PREFIX "-"))) | ||
2878 | { | ||
2879 | GNUNET_break_op (0); | ||
2880 | return GNUNET_SYSERR; | ||
2881 | } | ||
2882 | path = &address[strlen (COMMUNICATOR_ADDRESS_PREFIX "-")]; | ||
2883 | in = udp_address_to_sockaddr (path, &in_len); | ||
2884 | |||
2885 | if (NULL == in) | ||
2886 | { | ||
2887 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
2888 | "Failed to setup UDP socket address\n"); | ||
2889 | return GNUNET_SYSERR; | ||
2890 | } | ||
2891 | if ((AF_INET6 == in->sa_family) && | ||
2892 | (GNUNET_YES == disable_v6)) | ||
2893 | { | ||
2894 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2895 | "IPv6 disabled, skipping %s\n", address); | ||
2896 | GNUNET_free (in); | ||
2897 | return GNUNET_SYSERR; | ||
2898 | } | ||
2899 | |||
2900 | hsh = GNUNET_CRYPTO_hash_context_start (); | ||
2901 | GNUNET_CRYPTO_hash_context_read (hsh, in, in_len); | ||
2902 | GNUNET_CRYPTO_hash_context_read (hsh, peer, sizeof(*peer)); | ||
2903 | GNUNET_CRYPTO_hash_context_finish (hsh, &receiver_key); | ||
2904 | |||
2905 | receiver = GNUNET_CONTAINER_multihashmap_get (receivers, &receiver_key); | ||
2906 | if (NULL != receiver) | ||
2907 | { | ||
2908 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2909 | "receiver %s already exist or is being connected to\n", | ||
2910 | address); | ||
2911 | GNUNET_free (in); | ||
2912 | return GNUNET_NO; | ||
2913 | } | ||
2914 | |||
2915 | receiver = GNUNET_new (struct ReceiverAddress); | ||
2916 | receiver->key = receiver_key; | ||
2917 | receiver->address = in; | ||
2918 | receiver->address_len = in_len; | ||
2919 | receiver->target = *peer; | ||
2920 | receiver->nt = GNUNET_NT_scanner_get_type (is, in, in_len); | ||
2921 | (void) GNUNET_CONTAINER_multihashmap_put ( | ||
2922 | receivers, | ||
2923 | &receiver->key, | ||
2924 | receiver, | ||
2925 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE); | ||
2926 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
2927 | "Added %s to receivers\n", | ||
2928 | GNUNET_i2s_full (&receiver->target)); | ||
2929 | receiver->timeout = | ||
2930 | GNUNET_TIME_relative_to_absolute (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT); | ||
2931 | receiver->hn = GNUNET_CONTAINER_heap_insert (receivers_heap, | ||
2932 | receiver, | ||
2933 | receiver->timeout.abs_value_us); | ||
2934 | GNUNET_STATISTICS_set (stats, | ||
2935 | "# receivers active", | ||
2936 | GNUNET_CONTAINER_multihashmap_size (receivers), | ||
2937 | GNUNET_NO); | ||
2938 | receiver->foreign_addr = | ||
2939 | sockaddr_to_udpaddr_string (receiver->address, receiver->address_len); | ||
2940 | setup_receiver_mq (receiver); | ||
2941 | if (NULL == timeout_task) | ||
2942 | timeout_task = GNUNET_SCHEDULER_add_now (&check_timeouts, NULL); | ||
2943 | return GNUNET_OK; | ||
2944 | } | ||
2945 | |||
2946 | |||
2947 | /** | ||
2948 | * Iterator over all receivers to clean up. | ||
2949 | * | ||
2950 | * @param cls NULL | ||
2951 | * @param target unused | ||
2952 | * @param value the queue to destroy | ||
2953 | * @return #GNUNET_OK to continue to iterate | ||
2954 | */ | ||
2955 | static int | ||
2956 | get_receiver_delete_it (void *cls, | ||
2957 | const struct GNUNET_HashCode *target, | ||
2958 | void *value) | ||
2959 | { | ||
2960 | struct ReceiverAddress *receiver = value; | ||
2961 | |||
2962 | (void) cls; | ||
2963 | (void) target; | ||
2964 | receiver_destroy (receiver); | ||
2965 | return GNUNET_OK; | ||
2966 | } | ||
2967 | |||
2968 | |||
2969 | /** | ||
2970 | * Iterator over all senders to clean up. | ||
2971 | * | ||
2972 | * @param cls NULL | ||
2973 | * @param target unused | ||
2974 | * @param value the queue to destroy | ||
2975 | * @return #GNUNET_OK to continue to iterate | ||
2976 | */ | ||
2977 | static int | ||
2978 | get_sender_delete_it (void *cls, | ||
2979 | const struct GNUNET_HashCode *target, | ||
2980 | void *value) | ||
2981 | { | ||
2982 | struct SenderAddress *sender = value; | ||
2983 | |||
2984 | (void) cls; | ||
2985 | (void) target; | ||
2986 | |||
2987 | |||
2988 | sender_destroy (sender); | ||
2989 | return GNUNET_OK; | ||
2990 | } | ||
2991 | |||
2992 | |||
2993 | /** | ||
2994 | * Shutdown the UNIX communicator. | ||
2995 | * | ||
2996 | * @param cls NULL (always) | ||
2997 | */ | ||
2998 | static void | ||
2999 | do_shutdown (void *cls) | ||
3000 | { | ||
3001 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3002 | "do_shutdown\n"); | ||
3003 | if (NULL != nat) | ||
3004 | { | ||
3005 | GNUNET_NAT_unregister (nat); | ||
3006 | nat = NULL; | ||
3007 | } | ||
3008 | while (NULL != bi_head) | ||
3009 | bi_destroy (bi_head); | ||
3010 | if (NULL != broadcast_task) | ||
3011 | { | ||
3012 | GNUNET_SCHEDULER_cancel (broadcast_task); | ||
3013 | broadcast_task = NULL; | ||
3014 | } | ||
3015 | if (NULL != timeout_task) | ||
3016 | { | ||
3017 | GNUNET_SCHEDULER_cancel (timeout_task); | ||
3018 | timeout_task = NULL; | ||
3019 | } | ||
3020 | if (NULL != read_task) | ||
3021 | { | ||
3022 | GNUNET_SCHEDULER_cancel (read_task); | ||
3023 | read_task = NULL; | ||
3024 | } | ||
3025 | if (NULL != udp_sock) | ||
3026 | { | ||
3027 | GNUNET_break (GNUNET_OK == | ||
3028 | GNUNET_NETWORK_socket_close (udp_sock)); | ||
3029 | udp_sock = NULL; | ||
3030 | } | ||
3031 | GNUNET_CONTAINER_multihashmap_iterate (receivers, | ||
3032 | &get_receiver_delete_it, | ||
3033 | NULL); | ||
3034 | GNUNET_CONTAINER_multihashmap_destroy (receivers); | ||
3035 | GNUNET_CONTAINER_multihashmap_iterate (senders, | ||
3036 | &get_sender_delete_it, | ||
3037 | NULL); | ||
3038 | GNUNET_CONTAINER_multihashmap_destroy (senders); | ||
3039 | GNUNET_CONTAINER_multishortmap_destroy (key_cache); | ||
3040 | GNUNET_CONTAINER_heap_destroy (senders_heap); | ||
3041 | GNUNET_CONTAINER_heap_destroy (receivers_heap); | ||
3042 | if (NULL != timeout_task) | ||
3043 | { | ||
3044 | GNUNET_SCHEDULER_cancel (timeout_task); | ||
3045 | timeout_task = NULL; | ||
3046 | } | ||
3047 | if (NULL != ch) | ||
3048 | { | ||
3049 | GNUNET_TRANSPORT_communicator_disconnect (ch); | ||
3050 | ch = NULL; | ||
3051 | } | ||
3052 | if (NULL != ah) | ||
3053 | { | ||
3054 | GNUNET_TRANSPORT_application_done (ah); | ||
3055 | ah = NULL; | ||
3056 | } | ||
3057 | if (NULL != stats) | ||
3058 | { | ||
3059 | GNUNET_STATISTICS_destroy (stats, GNUNET_YES); | ||
3060 | stats = NULL; | ||
3061 | } | ||
3062 | if (NULL != my_private_key) | ||
3063 | { | ||
3064 | GNUNET_free (my_private_key); | ||
3065 | my_private_key = NULL; | ||
3066 | } | ||
3067 | if (NULL != is) | ||
3068 | { | ||
3069 | GNUNET_NT_scanner_done (is); | ||
3070 | is = NULL; | ||
3071 | } | ||
3072 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3073 | "do_shutdown finished\n"); | ||
3074 | } | ||
3075 | |||
3076 | |||
3077 | struct AckInfo | ||
3078 | { | ||
3079 | const struct UDPAck *ack; | ||
3080 | |||
3081 | const struct GNUNET_PeerIdentity *sender; | ||
3082 | }; | ||
3083 | |||
3084 | static int | ||
3085 | handle_ack_by_sender (void *cls, const struct GNUNET_HashCode *key, void *value) | ||
3086 | { | ||
3087 | struct ReceiverAddress *receiver = value; | ||
3088 | struct AckInfo *ai = cls; | ||
3089 | |||
3090 | if (0 != GNUNET_memcmp (ai->sender, &receiver->target)) | ||
3091 | { | ||
3092 | return GNUNET_YES; | ||
3093 | } | ||
3094 | handle_ack ((void*) ai->ack, key, receiver); | ||
3095 | return GNUNET_YES; | ||
3096 | } | ||
3097 | |||
3098 | |||
3099 | /** | ||
3100 | * Function called when the transport service has received a | ||
3101 | * backchannel message for this communicator (!) via a different return | ||
3102 | * path. Should be an acknowledgement. | ||
3103 | * | ||
3104 | * @param cls closure, NULL | ||
3105 | * @param sender which peer sent the notification | ||
3106 | * @param msg payload | ||
3107 | */ | ||
3108 | static void | ||
3109 | enc_notify_cb (void *cls, | ||
3110 | const struct GNUNET_PeerIdentity *sender, | ||
3111 | const struct GNUNET_MessageHeader *msg) | ||
3112 | { | ||
3113 | struct AckInfo ai; | ||
3114 | |||
3115 | (void) cls; | ||
3116 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3117 | "Storing UDPAck received from backchannel from %s\n", | ||
3118 | GNUNET_i2s_full (sender)); | ||
3119 | if ((ntohs (msg->type) != GNUNET_MESSAGE_TYPE_COMMUNICATOR_UDP_ACK) || | ||
3120 | (ntohs (msg->size) != sizeof(struct UDPAck))) | ||
3121 | { | ||
3122 | GNUNET_break_op (0); | ||
3123 | return; | ||
3124 | } | ||
3125 | ai.ack = (const struct UDPAck *) msg; | ||
3126 | ai.sender = sender; | ||
3127 | GNUNET_CONTAINER_multihashmap_iterate (receivers, | ||
3128 | &handle_ack_by_sender, | ||
3129 | &ai); | ||
3130 | } | ||
3131 | |||
3132 | |||
3133 | /** | ||
3134 | * Signature of the callback passed to #GNUNET_NAT_register() for | ||
3135 | * a function to call whenever our set of 'valid' addresses changes. | ||
3136 | * | ||
3137 | * @param cls closure | ||
3138 | * @param app_ctx[in,out] location where the app can store stuff | ||
3139 | * on add and retrieve it on remove | ||
3140 | * @param add_remove #GNUNET_YES to add a new public IP address, | ||
3141 | * #GNUNET_NO to remove a previous (now invalid) one | ||
3142 | * @param ac address class the address belongs to | ||
3143 | * @param addr either the previous or the new public IP address | ||
3144 | * @param addrlen actual length of the @a addr | ||
3145 | */ | ||
3146 | static void | ||
3147 | nat_address_cb (void *cls, | ||
3148 | void **app_ctx, | ||
3149 | int add_remove, | ||
3150 | enum GNUNET_NAT_AddressClass ac, | ||
3151 | const struct sockaddr *addr, | ||
3152 | socklen_t addrlen) | ||
3153 | { | ||
3154 | char *my_addr; | ||
3155 | struct GNUNET_TRANSPORT_AddressIdentifier *ai; | ||
3156 | |||
3157 | if (GNUNET_YES == add_remove) | ||
3158 | { | ||
3159 | enum GNUNET_NetworkType nt; | ||
3160 | |||
3161 | GNUNET_asprintf (&my_addr, | ||
3162 | "%s-%s", | ||
3163 | COMMUNICATOR_ADDRESS_PREFIX, | ||
3164 | GNUNET_a2s (addr, addrlen)); | ||
3165 | nt = GNUNET_NT_scanner_get_type (is, addr, addrlen); | ||
3166 | ai = | ||
3167 | GNUNET_TRANSPORT_communicator_address_add (ch, | ||
3168 | my_addr, | ||
3169 | nt, | ||
3170 | GNUNET_TIME_UNIT_FOREVER_REL); | ||
3171 | GNUNET_free (my_addr); | ||
3172 | *app_ctx = ai; | ||
3173 | } | ||
3174 | else | ||
3175 | { | ||
3176 | ai = *app_ctx; | ||
3177 | GNUNET_TRANSPORT_communicator_address_remove (ai); | ||
3178 | *app_ctx = NULL; | ||
3179 | } | ||
3180 | } | ||
3181 | |||
3182 | |||
3183 | /** | ||
3184 | * Broadcast our presence on one of our interfaces. | ||
3185 | * | ||
3186 | * @param cls a `struct BroadcastInterface` | ||
3187 | */ | ||
3188 | static void | ||
3189 | ifc_broadcast (void *cls) | ||
3190 | { | ||
3191 | struct BroadcastInterface *bi = cls; | ||
3192 | struct GNUNET_TIME_Relative delay; | ||
3193 | |||
3194 | delay = BROADCAST_FREQUENCY; | ||
3195 | delay.rel_value_us = | ||
3196 | GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK, delay.rel_value_us); | ||
3197 | bi->broadcast_task = | ||
3198 | GNUNET_SCHEDULER_add_delayed (delay, &ifc_broadcast, bi); | ||
3199 | |||
3200 | switch (bi->sa->sa_family) | ||
3201 | { | ||
3202 | case AF_INET: { | ||
3203 | static int yes = 1; | ||
3204 | static int no = 0; | ||
3205 | ssize_t sent; | ||
3206 | |||
3207 | if (GNUNET_OK != | ||
3208 | GNUNET_NETWORK_socket_setsockopt (udp_sock, | ||
3209 | SOL_SOCKET, | ||
3210 | SO_BROADCAST, | ||
3211 | &yes, | ||
3212 | sizeof(int))) | ||
3213 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, | ||
3214 | "setsockopt"); | ||
3215 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3216 | "creating UDPBroadcast from %s\n", | ||
3217 | GNUNET_i2s (&(bi->bcm.sender))); | ||
3218 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3219 | "sending UDPBroadcast to add %s\n", | ||
3220 | GNUNET_a2s (bi->ba, bi->salen)); | ||
3221 | sent = GNUNET_NETWORK_socket_sendto (udp_sock, | ||
3222 | &bi->bcm, | ||
3223 | sizeof(bi->bcm), | ||
3224 | bi->ba, | ||
3225 | bi->salen); | ||
3226 | if (-1 == sent) | ||
3227 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, | ||
3228 | "sendto"); | ||
3229 | if (GNUNET_OK != GNUNET_NETWORK_socket_setsockopt (udp_sock, | ||
3230 | SOL_SOCKET, | ||
3231 | SO_BROADCAST, | ||
3232 | &no, | ||
3233 | sizeof(int))) | ||
3234 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, | ||
3235 | "setsockopt"); | ||
3236 | break; | ||
3237 | } | ||
3238 | |||
3239 | case AF_INET6: { | ||
3240 | ssize_t sent; | ||
3241 | struct sockaddr_in6 dst; | ||
3242 | |||
3243 | dst.sin6_family = AF_INET6; | ||
3244 | dst.sin6_port = htons (my_port); | ||
3245 | dst.sin6_addr = bi->mcreq.ipv6mr_multiaddr; | ||
3246 | dst.sin6_scope_id = ((struct sockaddr_in6 *) bi->ba)->sin6_scope_id; | ||
3247 | |||
3248 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3249 | "sending UDPBroadcast\n"); | ||
3250 | sent = GNUNET_NETWORK_socket_sendto (udp_sock, | ||
3251 | &bi->bcm, | ||
3252 | sizeof(bi->bcm), | ||
3253 | (const struct sockaddr *) &dst, | ||
3254 | sizeof(dst)); | ||
3255 | if (-1 == sent) | ||
3256 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "sendto"); | ||
3257 | break; | ||
3258 | } | ||
3259 | |||
3260 | default: | ||
3261 | GNUNET_break (0); | ||
3262 | break; | ||
3263 | } | ||
3264 | } | ||
3265 | |||
3266 | |||
3267 | /** | ||
3268 | * Callback function invoked for each interface found. | ||
3269 | * Activates/deactivates broadcast interfaces. | ||
3270 | * | ||
3271 | * @param cls NULL | ||
3272 | * @param name name of the interface (can be NULL for unknown) | ||
3273 | * @param isDefault is this presumably the default interface | ||
3274 | * @param addr address of this interface (can be NULL for unknown or unassigned) | ||
3275 | * @param broadcast_addr the broadcast address (can be NULL for unknown or | ||
3276 | * unassigned) | ||
3277 | * @param netmask the network mask (can be NULL for unknown or unassigned) | ||
3278 | * @param addrlen length of the address | ||
3279 | * @return #GNUNET_OK to continue iteration, #GNUNET_SYSERR to abort | ||
3280 | */ | ||
3281 | static int | ||
3282 | iface_proc (void *cls, | ||
3283 | const char *name, | ||
3284 | int isDefault, | ||
3285 | const struct sockaddr *addr, | ||
3286 | const struct sockaddr *broadcast_addr, | ||
3287 | const struct sockaddr *netmask, | ||
3288 | socklen_t addrlen) | ||
3289 | { | ||
3290 | struct BroadcastInterface *bi; | ||
3291 | enum GNUNET_NetworkType network; | ||
3292 | struct UdpBroadcastSignature ubs; | ||
3293 | |||
3294 | (void) cls; | ||
3295 | (void) netmask; | ||
3296 | if (NULL == addr) | ||
3297 | return GNUNET_YES; /* need to know our address! */ | ||
3298 | network = GNUNET_NT_scanner_get_type (is, addr, addrlen); | ||
3299 | if (GNUNET_NT_LOOPBACK == network) | ||
3300 | { | ||
3301 | /* Broadcasting on loopback does not make sense */ | ||
3302 | return GNUNET_YES; | ||
3303 | } | ||
3304 | for (bi = bi_head; NULL != bi; bi = bi->next) | ||
3305 | { | ||
3306 | if ((bi->salen == addrlen) && (0 == memcmp (addr, bi->sa, addrlen))) | ||
3307 | { | ||
3308 | bi->found = GNUNET_YES; | ||
3309 | return GNUNET_OK; | ||
3310 | } | ||
3311 | } | ||
3312 | |||
3313 | if ((AF_INET6 == addr->sa_family) && (NULL == broadcast_addr)) | ||
3314 | return GNUNET_OK; /* broadcast_addr is required for IPv6! */ | ||
3315 | if ((AF_INET6 == addr->sa_family) && (GNUNET_YES != have_v6_socket)) | ||
3316 | return GNUNET_OK; /* not using IPv6 */ | ||
3317 | |||
3318 | bi = GNUNET_new (struct BroadcastInterface); | ||
3319 | bi->sa = GNUNET_memdup (addr, | ||
3320 | addrlen); | ||
3321 | if ( (NULL != broadcast_addr) && | ||
3322 | (addrlen == sizeof (struct sockaddr_in)) ) | ||
3323 | { | ||
3324 | struct sockaddr_in *ba; | ||
3325 | |||
3326 | ba = GNUNET_memdup (broadcast_addr, | ||
3327 | addrlen); | ||
3328 | ba->sin_port = htons (2086); /* always GNUnet port, ignore configuration! */ | ||
3329 | bi->ba = (struct sockaddr *) ba; | ||
3330 | } | ||
3331 | bi->salen = addrlen; | ||
3332 | bi->found = GNUNET_YES; | ||
3333 | bi->bcm.sender = my_identity; | ||
3334 | ubs.purpose.purpose = htonl ( | ||
3335 | GNUNET_SIGNATURE_PURPOSE_COMMUNICATOR_UDP_BROADCAST); | ||
3336 | ubs.purpose.size = htonl (sizeof(ubs)); | ||
3337 | ubs.sender = my_identity; | ||
3338 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3339 | "creating UDPBroadcastSignature for %s\n", | ||
3340 | GNUNET_a2s (addr, addrlen)); | ||
3341 | GNUNET_CRYPTO_hash (addr, addrlen, &ubs.h_address); | ||
3342 | GNUNET_CRYPTO_eddsa_sign (my_private_key, | ||
3343 | &ubs, | ||
3344 | &bi->bcm.sender_sig); | ||
3345 | if (NULL != bi->ba) | ||
3346 | { | ||
3347 | bi->broadcast_task = GNUNET_SCHEDULER_add_now (&ifc_broadcast, bi); | ||
3348 | GNUNET_CONTAINER_DLL_insert (bi_head, bi_tail, bi); | ||
3349 | } | ||
3350 | if ((AF_INET6 == addr->sa_family) && (NULL != broadcast_addr)) | ||
3351 | { | ||
3352 | /* Create IPv6 multicast request */ | ||
3353 | const struct sockaddr_in6 *s6 = | ||
3354 | (const struct sockaddr_in6 *) broadcast_addr; | ||
3355 | |||
3356 | GNUNET_assert ( | ||
3357 | 1 == inet_pton (AF_INET6, "FF05::13B", &bi->mcreq.ipv6mr_multiaddr)); | ||
3358 | |||
3359 | /* http://tools.ietf.org/html/rfc2553#section-5.2: | ||
3360 | * | ||
3361 | * IPV6_JOIN_GROUP | ||
3362 | * | ||
3363 | * Join a multicast group on a specified local interface. If the | ||
3364 | * interface index is specified as 0, the kernel chooses the local | ||
3365 | * interface. For example, some kernels look up the multicast | ||
3366 | * group in the normal IPv6 routing table and using the resulting | ||
3367 | * interface; we do this for each interface, so no need to use | ||
3368 | * zero (anymore...). | ||
3369 | */ | ||
3370 | bi->mcreq.ipv6mr_interface = s6->sin6_scope_id; | ||
3371 | |||
3372 | /* Join the multicast group */ | ||
3373 | if (GNUNET_OK != GNUNET_NETWORK_socket_setsockopt (udp_sock, | ||
3374 | IPPROTO_IPV6, | ||
3375 | IPV6_JOIN_GROUP, | ||
3376 | &bi->mcreq, | ||
3377 | sizeof(bi->mcreq))) | ||
3378 | { | ||
3379 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "setsockopt"); | ||
3380 | } | ||
3381 | } | ||
3382 | return GNUNET_OK; | ||
3383 | } | ||
3384 | |||
3385 | |||
3386 | /** | ||
3387 | * Scan interfaces to broadcast our presence on the LAN. | ||
3388 | * | ||
3389 | * @param cls NULL, unused | ||
3390 | */ | ||
3391 | static void | ||
3392 | do_broadcast (void *cls) | ||
3393 | { | ||
3394 | struct BroadcastInterface *bin; | ||
3395 | |||
3396 | (void) cls; | ||
3397 | for (struct BroadcastInterface *bi = bi_head; NULL != bi; bi = bi->next) | ||
3398 | bi->found = GNUNET_NO; | ||
3399 | GNUNET_OS_network_interfaces_list (&iface_proc, NULL); | ||
3400 | for (struct BroadcastInterface *bi = bi_head; NULL != bi; bi = bin) | ||
3401 | { | ||
3402 | bin = bi->next; | ||
3403 | if (GNUNET_NO == bi->found) | ||
3404 | bi_destroy (bi); | ||
3405 | } | ||
3406 | broadcast_task = GNUNET_SCHEDULER_add_delayed (INTERFACE_SCAN_FREQUENCY, | ||
3407 | &do_broadcast, | ||
3408 | NULL); | ||
3409 | } | ||
3410 | |||
3411 | |||
3412 | static void | ||
3413 | try_connection_reversal (void *cls, | ||
3414 | const struct sockaddr *addr, | ||
3415 | socklen_t addrlen) | ||
3416 | { | ||
3417 | /* FIXME: support reversal: #5529 */ | ||
3418 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
3419 | "No connection reversal implemented!"); | ||
3420 | } | ||
3421 | |||
3422 | |||
3423 | /** | ||
3424 | * Setup communicator and launch network interactions. | ||
3425 | * | ||
3426 | * @param cls NULL (always) | ||
3427 | * @param args remaining command-line arguments | ||
3428 | * @param cfgfile name of the configuration file used (for saving, can be NULL!) | ||
3429 | * @param c configuration | ||
3430 | */ | ||
3431 | static void | ||
3432 | run (void *cls, | ||
3433 | char *const *args, | ||
3434 | const char *cfgfile, | ||
3435 | const struct GNUNET_CONFIGURATION_Handle *c) | ||
3436 | { | ||
3437 | char *bindto; | ||
3438 | struct sockaddr *in; | ||
3439 | socklen_t in_len; | ||
3440 | struct sockaddr_storage in_sto; | ||
3441 | socklen_t sto_len; | ||
3442 | |||
3443 | (void) cls; | ||
3444 | cfg = c; | ||
3445 | if (GNUNET_OK != | ||
3446 | GNUNET_CONFIGURATION_get_value_string (cfg, | ||
3447 | COMMUNICATOR_CONFIG_SECTION, | ||
3448 | "BINDTO", | ||
3449 | &bindto)) | ||
3450 | { | ||
3451 | GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR, | ||
3452 | COMMUNICATOR_CONFIG_SECTION, | ||
3453 | "BINDTO"); | ||
3454 | return; | ||
3455 | } | ||
3456 | |||
3457 | if (GNUNET_OK != | ||
3458 | GNUNET_CONFIGURATION_get_value_time (cfg, | ||
3459 | COMMUNICATOR_CONFIG_SECTION, | ||
3460 | "REKEY_INTERVAL", | ||
3461 | &rekey_interval)) | ||
3462 | rekey_interval = DEFAULT_REKEY_TIME_INTERVAL; | ||
3463 | |||
3464 | if (GNUNET_OK != | ||
3465 | GNUNET_CONFIGURATION_get_value_size (cfg, | ||
3466 | COMMUNICATOR_CONFIG_SECTION, | ||
3467 | "REKEY_MAX_BYTES", | ||
3468 | &rekey_max_bytes)) | ||
3469 | { | ||
3470 | rekey_max_bytes = DEFAULT_REKEY_MAX_BYTES; | ||
3471 | } | ||
3472 | disable_v6 = GNUNET_NO; | ||
3473 | if ((GNUNET_NO == GNUNET_NETWORK_test_pf (PF_INET6)) || | ||
3474 | (GNUNET_YES == | ||
3475 | GNUNET_CONFIGURATION_get_value_yesno (cfg, | ||
3476 | COMMUNICATOR_CONFIG_SECTION, | ||
3477 | "DISABLE_V6"))) | ||
3478 | { | ||
3479 | disable_v6 = GNUNET_YES; | ||
3480 | } | ||
3481 | |||
3482 | in = udp_address_to_sockaddr (bindto, &in_len); | ||
3483 | if (NULL == in) | ||
3484 | { | ||
3485 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
3486 | "Failed to setup UDP socket address with path `%s'\n", | ||
3487 | bindto); | ||
3488 | GNUNET_free (bindto); | ||
3489 | return; | ||
3490 | } | ||
3491 | udp_sock = | ||
3492 | GNUNET_NETWORK_socket_create (in->sa_family, | ||
3493 | SOCK_DGRAM, | ||
3494 | IPPROTO_UDP); | ||
3495 | if (NULL == udp_sock) | ||
3496 | { | ||
3497 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "socket"); | ||
3498 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
3499 | "Failed to create socket for %s family %d\n", | ||
3500 | GNUNET_a2s (in, | ||
3501 | in_len), | ||
3502 | in->sa_family); | ||
3503 | GNUNET_free (in); | ||
3504 | GNUNET_free (bindto); | ||
3505 | return; | ||
3506 | } | ||
3507 | if (AF_INET6 == in->sa_family) | ||
3508 | have_v6_socket = GNUNET_YES; | ||
3509 | if (GNUNET_OK != | ||
3510 | GNUNET_NETWORK_socket_bind (udp_sock, | ||
3511 | in, | ||
3512 | in_len)) | ||
3513 | { | ||
3514 | GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, | ||
3515 | "bind", | ||
3516 | bindto); | ||
3517 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
3518 | "Failed to bind socket for %s family %d sock %p\n", | ||
3519 | GNUNET_a2s (in, | ||
3520 | in_len), | ||
3521 | in->sa_family, | ||
3522 | udp_sock); | ||
3523 | GNUNET_NETWORK_socket_close (udp_sock); | ||
3524 | udp_sock = NULL; | ||
3525 | GNUNET_free (in); | ||
3526 | GNUNET_free (bindto); | ||
3527 | return; | ||
3528 | } | ||
3529 | |||
3530 | /* We might have bound to port 0, allowing the OS to figure it out; | ||
3531 | thus, get the real IN-address from the socket */ | ||
3532 | sto_len = sizeof(in_sto); | ||
3533 | if (0 != getsockname (GNUNET_NETWORK_get_fd (udp_sock), | ||
3534 | (struct sockaddr *) &in_sto, | ||
3535 | &sto_len)) | ||
3536 | { | ||
3537 | memcpy (&in_sto, in, in_len); | ||
3538 | sto_len = in_len; | ||
3539 | } | ||
3540 | GNUNET_free (in); | ||
3541 | GNUNET_free (bindto); | ||
3542 | in = (struct sockaddr *) &in_sto; | ||
3543 | in_len = sto_len; | ||
3544 | GNUNET_log_from_nocheck (GNUNET_ERROR_TYPE_INFO, | ||
3545 | "transport", | ||
3546 | "Bound to `%s' sock %p\n", | ||
3547 | GNUNET_a2s ((const struct sockaddr *) &in_sto, | ||
3548 | sto_len), | ||
3549 | udp_sock); | ||
3550 | switch (in->sa_family) | ||
3551 | { | ||
3552 | case AF_INET: | ||
3553 | my_port = ntohs (((struct sockaddr_in *) in)->sin_port); | ||
3554 | break; | ||
3555 | |||
3556 | case AF_INET6: | ||
3557 | my_port = ntohs (((struct sockaddr_in6 *) in)->sin6_port); | ||
3558 | break; | ||
3559 | |||
3560 | default: | ||
3561 | GNUNET_break (0); | ||
3562 | my_port = 0; | ||
3563 | } | ||
3564 | stats = GNUNET_STATISTICS_create ("communicator-udp", cfg); | ||
3565 | senders = GNUNET_CONTAINER_multihashmap_create (32, GNUNET_YES); | ||
3566 | receivers = GNUNET_CONTAINER_multihashmap_create (32, GNUNET_YES); | ||
3567 | senders_heap = GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN); | ||
3568 | receivers_heap = | ||
3569 | GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN); | ||
3570 | key_cache = GNUNET_CONTAINER_multishortmap_create (1024, GNUNET_YES); | ||
3571 | GNUNET_SCHEDULER_add_shutdown (&do_shutdown, NULL); | ||
3572 | is = GNUNET_NT_scanner_init (); | ||
3573 | my_private_key = GNUNET_CRYPTO_eddsa_key_create_from_configuration (cfg); | ||
3574 | if (NULL == my_private_key) | ||
3575 | { | ||
3576 | GNUNET_log ( | ||
3577 | GNUNET_ERROR_TYPE_ERROR, | ||
3578 | _ ( | ||
3579 | "Transport service is lacking key configuration settings. Exiting.\n")); | ||
3580 | GNUNET_SCHEDULER_shutdown (); | ||
3581 | return; | ||
3582 | } | ||
3583 | GNUNET_CRYPTO_eddsa_key_get_public (my_private_key, &my_identity.public_key); | ||
3584 | /* start reading */ | ||
3585 | read_task = GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
3586 | udp_sock, | ||
3587 | &sock_read, | ||
3588 | NULL); | ||
3589 | ch = GNUNET_TRANSPORT_communicator_connect (cfg, | ||
3590 | COMMUNICATOR_CONFIG_SECTION, | ||
3591 | COMMUNICATOR_ADDRESS_PREFIX, | ||
3592 | GNUNET_TRANSPORT_CC_UNRELIABLE, | ||
3593 | &mq_init, | ||
3594 | NULL, | ||
3595 | &enc_notify_cb, | ||
3596 | NULL); | ||
3597 | if (NULL == ch) | ||
3598 | { | ||
3599 | GNUNET_break (0); | ||
3600 | GNUNET_SCHEDULER_shutdown (); | ||
3601 | return; | ||
3602 | } | ||
3603 | ah = GNUNET_TRANSPORT_application_init (cfg); | ||
3604 | if (NULL == ah) | ||
3605 | { | ||
3606 | GNUNET_break (0); | ||
3607 | GNUNET_SCHEDULER_shutdown (); | ||
3608 | return; | ||
3609 | } | ||
3610 | /* start broadcasting */ | ||
3611 | if (GNUNET_YES != | ||
3612 | GNUNET_CONFIGURATION_get_value_yesno (cfg, | ||
3613 | COMMUNICATOR_CONFIG_SECTION, | ||
3614 | "DISABLE_BROADCAST")) | ||
3615 | { | ||
3616 | broadcast_task = GNUNET_SCHEDULER_add_now (&do_broadcast, NULL); | ||
3617 | } | ||
3618 | nat = GNUNET_NAT_register (cfg, | ||
3619 | COMMUNICATOR_CONFIG_SECTION, | ||
3620 | IPPROTO_UDP, | ||
3621 | 1 /* one address */, | ||
3622 | (const struct sockaddr **) &in, | ||
3623 | &in_len, | ||
3624 | &nat_address_cb, | ||
3625 | try_connection_reversal, | ||
3626 | NULL /* closure */); | ||
3627 | } | ||
3628 | |||
3629 | |||
3630 | /** | ||
3631 | * The main function for the UNIX communicator. | ||
3632 | * | ||
3633 | * @param argc number of arguments from the command line | ||
3634 | * @param argv command line arguments | ||
3635 | * @return 0 ok, 1 on error | ||
3636 | */ | ||
3637 | int | ||
3638 | main (int argc, char *const *argv) | ||
3639 | { | ||
3640 | static const struct GNUNET_GETOPT_CommandLineOption options[] = { | ||
3641 | GNUNET_GETOPT_OPTION_END | ||
3642 | }; | ||
3643 | int ret; | ||
3644 | |||
3645 | GNUNET_log_from_nocheck (GNUNET_ERROR_TYPE_DEBUG, | ||
3646 | "transport", | ||
3647 | "Starting udp communicator\n"); | ||
3648 | if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv)) | ||
3649 | return 2; | ||
3650 | |||
3651 | ret = (GNUNET_OK == GNUNET_PROGRAM_run (argc, | ||
3652 | argv, | ||
3653 | "gnunet-communicator-udp", | ||
3654 | _ ("GNUnet UDP communicator"), | ||
3655 | options, | ||
3656 | &run, | ||
3657 | NULL)) | ||
3658 | ? 0 | ||
3659 | : 1; | ||
3660 | GNUNET_free_nz ((void *) argv); | ||
3661 | return ret; | ||
3662 | } | ||
3663 | |||
3664 | |||
3665 | /* end of gnunet-communicator-udp.c */ | ||
diff --git a/src/service/transport/gnunet-communicator-unix.c b/src/service/transport/gnunet-communicator-unix.c new file mode 100644 index 000000000..1cdc85b8a --- /dev/null +++ b/src/service/transport/gnunet-communicator-unix.c | |||
@@ -0,0 +1,1166 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2010-2014, 2018 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/gnunet-communicator-unix.c | ||
23 | * @brief Transport plugin using unix domain sockets (!) | ||
24 | * Clearly, can only be used locally on Unix/Linux hosts... | ||
25 | * ONLY INTENDED FOR TESTING!!! | ||
26 | * @author Christian Grothoff | ||
27 | * @author Nathan Evans | ||
28 | */ | ||
29 | #include "platform.h" | ||
30 | #include "gnunet_util_lib.h" | ||
31 | #include "gnunet_protocols.h" | ||
32 | #include "gnunet_constants.h" | ||
33 | #include "gnunet_statistics_service.h" | ||
34 | #include "gnunet_transport_communication_service.h" | ||
35 | |||
36 | /** | ||
37 | * How many messages do we keep at most in the queue to the | ||
38 | * transport service before we start to drop (default, | ||
39 | * can be changed via the configuration file). | ||
40 | * Should be _below_ the level of the communicator API, as | ||
41 | * otherwise we may read messages just to have them dropped | ||
42 | * by the communicator API. | ||
43 | */ | ||
44 | #define DEFAULT_MAX_QUEUE_LENGTH 8000 | ||
45 | |||
46 | /** | ||
47 | * Address prefix used by the communicator. | ||
48 | */ | ||
49 | #define COMMUNICATOR_ADDRESS_PREFIX "unix" | ||
50 | |||
51 | /** | ||
52 | * Configuration section used by the communicator. | ||
53 | */ | ||
54 | #define COMMUNICATOR_CONFIG_SECTION "communicator-unix" | ||
55 | |||
56 | /** | ||
57 | * Our MTU. | ||
58 | */ | ||
59 | #ifndef DARWIN | ||
60 | #define UNIX_MTU UINT16_MAX | ||
61 | #else | ||
62 | #define UNIX_MTU 2048 | ||
63 | #endif | ||
64 | |||
65 | GNUNET_NETWORK_STRUCT_BEGIN | ||
66 | |||
67 | /** | ||
68 | * UNIX Message-Packet header. | ||
69 | */ | ||
70 | struct UNIXMessage | ||
71 | { | ||
72 | /** | ||
73 | * Message header. | ||
74 | */ | ||
75 | struct GNUNET_MessageHeader header; | ||
76 | |||
77 | /** | ||
78 | * What is the identity of the sender (GNUNET_hash of public key) | ||
79 | */ | ||
80 | struct GNUNET_PeerIdentity sender; | ||
81 | }; | ||
82 | |||
83 | GNUNET_NETWORK_STRUCT_END | ||
84 | |||
85 | |||
86 | /** | ||
87 | * Handle for a queue. | ||
88 | */ | ||
89 | struct Queue | ||
90 | { | ||
91 | /** | ||
92 | * Queues with pending messages (!) are kept in a DLL. | ||
93 | */ | ||
94 | struct Queue *next; | ||
95 | |||
96 | /** | ||
97 | * Queues with pending messages (!) are kept in a DLL. | ||
98 | */ | ||
99 | struct Queue *prev; | ||
100 | |||
101 | /** | ||
102 | * To whom are we talking to. | ||
103 | */ | ||
104 | struct GNUNET_PeerIdentity target; | ||
105 | |||
106 | /** | ||
107 | * Address of the other peer. | ||
108 | */ | ||
109 | struct sockaddr_un *address; | ||
110 | |||
111 | /** | ||
112 | * Length of the address. | ||
113 | */ | ||
114 | socklen_t address_len; | ||
115 | |||
116 | /** | ||
117 | * Message currently scheduled for transmission, non-NULL if and only | ||
118 | * if this queue is in the #queue_head DLL. | ||
119 | */ | ||
120 | struct UNIXMessage *msg; | ||
121 | |||
122 | /** | ||
123 | * Message queue we are providing for the #ch. | ||
124 | */ | ||
125 | struct GNUNET_MQ_Handle *mq; | ||
126 | |||
127 | /** | ||
128 | * handle for this queue with the #ch. | ||
129 | */ | ||
130 | struct GNUNET_TRANSPORT_QueueHandle *qh; | ||
131 | |||
132 | /** | ||
133 | * Number of bytes we currently have in our write queue. | ||
134 | */ | ||
135 | unsigned long long bytes_in_queue; | ||
136 | |||
137 | /** | ||
138 | * Timeout for this queue. | ||
139 | */ | ||
140 | struct GNUNET_TIME_Absolute timeout; | ||
141 | |||
142 | /** | ||
143 | * Queue timeout task. | ||
144 | */ | ||
145 | struct GNUNET_SCHEDULER_Task *timeout_task; | ||
146 | }; | ||
147 | |||
148 | /** | ||
149 | * My Peer Identity | ||
150 | */ | ||
151 | static struct GNUNET_PeerIdentity my_identity; | ||
152 | |||
153 | /** | ||
154 | * ID of read task | ||
155 | */ | ||
156 | static struct GNUNET_SCHEDULER_Task *read_task; | ||
157 | |||
158 | /** | ||
159 | * ID of write task | ||
160 | */ | ||
161 | static struct GNUNET_SCHEDULER_Task *write_task; | ||
162 | |||
163 | /** | ||
164 | * Number of messages we currently have in our queues towards the transport service. | ||
165 | */ | ||
166 | static unsigned long long delivering_messages; | ||
167 | |||
168 | /** | ||
169 | * Maximum queue length before we stop reading towards the transport service. | ||
170 | */ | ||
171 | static unsigned long long max_queue_length; | ||
172 | |||
173 | /** | ||
174 | * For logging statistics. | ||
175 | */ | ||
176 | static struct GNUNET_STATISTICS_Handle *stats; | ||
177 | |||
178 | /** | ||
179 | * Our environment. | ||
180 | */ | ||
181 | static struct GNUNET_TRANSPORT_CommunicatorHandle *ch; | ||
182 | |||
183 | /** | ||
184 | * Queues (map from peer identity to `struct Queue`) | ||
185 | */ | ||
186 | static struct GNUNET_CONTAINER_MultiPeerMap *queue_map; | ||
187 | |||
188 | /** | ||
189 | * Head of queue of messages to transmit. | ||
190 | */ | ||
191 | static struct Queue *queue_head; | ||
192 | |||
193 | /** | ||
194 | * Tail of queue of messages to transmit. | ||
195 | */ | ||
196 | static struct Queue *queue_tail; | ||
197 | |||
198 | /** | ||
199 | * socket that we transmit all data with | ||
200 | */ | ||
201 | static struct GNUNET_NETWORK_Handle *unix_sock; | ||
202 | |||
203 | /** | ||
204 | * Handle to the operation that publishes our address. | ||
205 | */ | ||
206 | static struct GNUNET_TRANSPORT_AddressIdentifier *ai; | ||
207 | |||
208 | |||
209 | /** | ||
210 | * Functions with this signature are called whenever we need | ||
211 | * to close a queue due to a disconnect or failure to | ||
212 | * establish a connection. | ||
213 | * | ||
214 | * @param queue queue to close down | ||
215 | */ | ||
216 | static void | ||
217 | queue_destroy (struct Queue *queue) | ||
218 | { | ||
219 | struct GNUNET_MQ_Handle *mq; | ||
220 | |||
221 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
222 | "Disconnecting queue for peer `%s'\n", | ||
223 | GNUNET_i2s (&queue->target)); | ||
224 | if (0 != queue->bytes_in_queue) | ||
225 | { | ||
226 | GNUNET_CONTAINER_DLL_remove (queue_head, queue_tail, queue); | ||
227 | queue->bytes_in_queue = 0; | ||
228 | } | ||
229 | if (NULL != (mq = queue->mq)) | ||
230 | { | ||
231 | queue->mq = NULL; | ||
232 | GNUNET_MQ_destroy (mq); | ||
233 | } | ||
234 | GNUNET_assert ( | ||
235 | GNUNET_YES == | ||
236 | GNUNET_CONTAINER_multipeermap_remove (queue_map, &queue->target, queue)); | ||
237 | GNUNET_STATISTICS_set (stats, | ||
238 | "# queues active", | ||
239 | GNUNET_CONTAINER_multipeermap_size (queue_map), | ||
240 | GNUNET_NO); | ||
241 | if (NULL != queue->timeout_task) | ||
242 | { | ||
243 | GNUNET_SCHEDULER_cancel (queue->timeout_task); | ||
244 | queue->timeout_task = NULL; | ||
245 | } | ||
246 | GNUNET_free (queue->address); | ||
247 | GNUNET_free (queue); | ||
248 | } | ||
249 | |||
250 | |||
251 | /** | ||
252 | * Queue was idle for too long, so disconnect it | ||
253 | * | ||
254 | * @param cls the `struct Queue *` to disconnect | ||
255 | */ | ||
256 | static void | ||
257 | queue_timeout (void *cls) | ||
258 | { | ||
259 | struct Queue *queue = cls; | ||
260 | struct GNUNET_TIME_Relative left; | ||
261 | |||
262 | queue->timeout_task = NULL; | ||
263 | left = GNUNET_TIME_absolute_get_remaining (queue->timeout); | ||
264 | if (0 != left.rel_value_us) | ||
265 | { | ||
266 | /* not actually our turn yet, but let's at least update | ||
267 | the monitor, it may think we're about to die ... */ | ||
268 | queue->timeout_task = | ||
269 | GNUNET_SCHEDULER_add_delayed (left, &queue_timeout, queue); | ||
270 | return; | ||
271 | } | ||
272 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
273 | "Queue %p was idle for %s, disconnecting\n", | ||
274 | queue, | ||
275 | GNUNET_STRINGS_relative_time_to_string ( | ||
276 | GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT, | ||
277 | GNUNET_YES)); | ||
278 | queue_destroy (queue); | ||
279 | } | ||
280 | |||
281 | |||
282 | /** | ||
283 | * Increment queue timeout due to activity. We do not immediately | ||
284 | * notify the monitor here as that might generate excessive | ||
285 | * signalling. | ||
286 | * | ||
287 | * @param queue queue for which the timeout should be rescheduled | ||
288 | */ | ||
289 | static void | ||
290 | reschedule_queue_timeout (struct Queue *queue) | ||
291 | { | ||
292 | GNUNET_assert (NULL != queue->timeout_task); | ||
293 | queue->timeout = | ||
294 | GNUNET_TIME_relative_to_absolute (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT); | ||
295 | } | ||
296 | |||
297 | |||
298 | /** | ||
299 | * Convert unix path to a `struct sockaddr_un *` | ||
300 | * | ||
301 | * @param unixpath path to convert | ||
302 | * @param[out] sock_len set to the length of the address | ||
303 | * @param is_abstract is this an abstract @a unixpath | ||
304 | * @return converted unix path | ||
305 | */ | ||
306 | static struct sockaddr_un * | ||
307 | unix_address_to_sockaddr (const char *unixpath, socklen_t *sock_len) | ||
308 | { | ||
309 | struct sockaddr_un *un; | ||
310 | size_t slen; | ||
311 | |||
312 | GNUNET_assert (0 < strlen (unixpath)); /* sanity check */ | ||
313 | un = GNUNET_new (struct sockaddr_un); | ||
314 | un->sun_family = AF_UNIX; | ||
315 | slen = strlen (unixpath); | ||
316 | if (slen >= sizeof(un->sun_path)) | ||
317 | slen = sizeof(un->sun_path) - 1; | ||
318 | GNUNET_memcpy (un->sun_path, unixpath, slen); | ||
319 | un->sun_path[slen] = '\0'; | ||
320 | slen = sizeof(struct sockaddr_un); | ||
321 | #if HAVE_SOCKADDR_UN_SUN_LEN | ||
322 | un->sun_len = (u_char) slen; | ||
323 | #endif | ||
324 | (*sock_len) = slen; | ||
325 | if ('@' == un->sun_path[0]) | ||
326 | un->sun_path[0] = '\0'; | ||
327 | return un; | ||
328 | } | ||
329 | |||
330 | |||
331 | /** | ||
332 | * Closure to #lookup_queue_it(). | ||
333 | */ | ||
334 | struct LookupCtx | ||
335 | { | ||
336 | /** | ||
337 | * Location to store the queue, if found. | ||
338 | */ | ||
339 | struct Queue *res; | ||
340 | |||
341 | /** | ||
342 | * Address we are looking for. | ||
343 | */ | ||
344 | const struct sockaddr_un *un; | ||
345 | |||
346 | /** | ||
347 | * Number of bytes in @a un | ||
348 | */ | ||
349 | socklen_t un_len; | ||
350 | }; | ||
351 | |||
352 | |||
353 | /** | ||
354 | * Function called to find a queue by address. | ||
355 | * | ||
356 | * @param cls the `struct LookupCtx *` | ||
357 | * @param key peer we are looking for (unused) | ||
358 | * @param value a queue | ||
359 | * @return #GNUNET_YES if not found (continue looking), #GNUNET_NO on success | ||
360 | */ | ||
361 | static int | ||
362 | lookup_queue_it (void *cls, const struct GNUNET_PeerIdentity *key, void *value) | ||
363 | { | ||
364 | struct LookupCtx *lctx = cls; | ||
365 | struct Queue *queue = value; | ||
366 | |||
367 | if ((queue->address_len == lctx->un_len) && | ||
368 | (0 == memcmp (lctx->un, queue->address, queue->address_len))) | ||
369 | { | ||
370 | lctx->res = queue; | ||
371 | return GNUNET_NO; | ||
372 | } | ||
373 | return GNUNET_YES; | ||
374 | } | ||
375 | |||
376 | |||
377 | /** | ||
378 | * Find an existing queue by address. | ||
379 | * | ||
380 | * @param plugin the plugin | ||
381 | * @param address the address to find | ||
382 | * @return NULL if queue was not found | ||
383 | */ | ||
384 | static struct Queue * | ||
385 | lookup_queue (const struct GNUNET_PeerIdentity *peer, | ||
386 | const struct sockaddr_un *un, | ||
387 | socklen_t un_len) | ||
388 | { | ||
389 | struct LookupCtx lctx; | ||
390 | |||
391 | lctx.un = un; | ||
392 | lctx.un_len = un_len; | ||
393 | lctx.res = NULL; | ||
394 | GNUNET_CONTAINER_multipeermap_get_multiple (queue_map, | ||
395 | peer, | ||
396 | &lookup_queue_it, | ||
397 | &lctx); | ||
398 | return lctx.res; | ||
399 | } | ||
400 | |||
401 | |||
402 | /** | ||
403 | * We have been notified that our socket is ready to write. | ||
404 | * Then reschedule this function to be called again once more is available. | ||
405 | * | ||
406 | * @param cls NULL | ||
407 | */ | ||
408 | static void | ||
409 | select_write_cb (void *cls) | ||
410 | { | ||
411 | struct Queue *queue = queue_tail; | ||
412 | const struct GNUNET_MessageHeader *msg = &queue->msg->header; | ||
413 | size_t msg_size = ntohs (msg->size); | ||
414 | ssize_t sent; | ||
415 | |||
416 | /* take queue of the ready list */ | ||
417 | write_task = NULL; | ||
418 | resend: | ||
419 | /* Send the data */ | ||
420 | sent = GNUNET_NETWORK_socket_sendto (unix_sock, | ||
421 | msg, | ||
422 | msg_size, | ||
423 | (const struct sockaddr *) queue->address, | ||
424 | queue->address_len); | ||
425 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
426 | "UNIX transmitted message to %s (%d/%u: %s)\n", | ||
427 | GNUNET_i2s (&queue->target), | ||
428 | (int) sent, | ||
429 | (unsigned int) msg_size, | ||
430 | (sent < 0) ? strerror (errno) : "ok"); | ||
431 | if (-1 != sent) | ||
432 | { | ||
433 | GNUNET_CONTAINER_DLL_remove (queue_head, queue_tail, queue); | ||
434 | if (NULL != queue_head) | ||
435 | write_task = GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
436 | unix_sock, | ||
437 | &select_write_cb, | ||
438 | NULL); | ||
439 | |||
440 | /* send 'msg' */ | ||
441 | GNUNET_free (queue->msg); | ||
442 | queue->msg = NULL; | ||
443 | GNUNET_MQ_impl_send_continue (queue->mq); | ||
444 | GNUNET_STATISTICS_update (stats, | ||
445 | "# bytes sent", | ||
446 | (long long) sent, | ||
447 | GNUNET_NO); | ||
448 | reschedule_queue_timeout (queue); | ||
449 | return; /* all good */ | ||
450 | } | ||
451 | GNUNET_STATISTICS_update (stats, | ||
452 | "# network transmission failures", | ||
453 | 1, | ||
454 | GNUNET_NO); | ||
455 | write_task = GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
456 | unix_sock, | ||
457 | &select_write_cb, | ||
458 | NULL); | ||
459 | switch (errno) | ||
460 | { | ||
461 | case EAGAIN: | ||
462 | case ENOBUFS: | ||
463 | /* We should retry later... */ | ||
464 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_DEBUG, "send"); | ||
465 | return; | ||
466 | |||
467 | case EMSGSIZE: { | ||
468 | socklen_t size = 0; | ||
469 | socklen_t len = sizeof(size); | ||
470 | |||
471 | GNUNET_NETWORK_socket_getsockopt (unix_sock, | ||
472 | SOL_SOCKET, | ||
473 | SO_SNDBUF, | ||
474 | &size, | ||
475 | &len); | ||
476 | if (size > ntohs (msg->size)) | ||
477 | { | ||
478 | /* Buffer is bigger than message: error, no retry | ||
479 | * This should never happen!*/ | ||
480 | GNUNET_break (0); | ||
481 | return; | ||
482 | } | ||
483 | GNUNET_log ( | ||
484 | GNUNET_ERROR_TYPE_WARNING, | ||
485 | "Trying to increase socket buffer size from %u to %u for message size %u\n", | ||
486 | (unsigned int) size, | ||
487 | (unsigned int) ((msg_size / 1000) + 2) * 1000, | ||
488 | (unsigned int) msg_size); | ||
489 | size = ((msg_size / 1000) + 2) * 1000; | ||
490 | if (GNUNET_OK == GNUNET_NETWORK_socket_setsockopt (unix_sock, | ||
491 | SOL_SOCKET, | ||
492 | SO_SNDBUF, | ||
493 | &size, | ||
494 | sizeof(size))) | ||
495 | goto resend; /* Increased buffer size, retry sending */ | ||
496 | /* Ok, then just try very modest increase */ | ||
497 | size = msg_size; | ||
498 | if (GNUNET_OK == GNUNET_NETWORK_socket_setsockopt (unix_sock, | ||
499 | SOL_SOCKET, | ||
500 | SO_SNDBUF, | ||
501 | &size, | ||
502 | sizeof(size))) | ||
503 | goto resend; /* Increased buffer size, retry sending */ | ||
504 | /* Could not increase buffer size: error, no retry */ | ||
505 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "setsockopt"); | ||
506 | return; | ||
507 | } | ||
508 | |||
509 | default: | ||
510 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "send"); | ||
511 | return; | ||
512 | } | ||
513 | } | ||
514 | |||
515 | |||
516 | /** | ||
517 | * Signature of functions implementing the sending functionality of a | ||
518 | * message queue. | ||
519 | * | ||
520 | * @param mq the message queue | ||
521 | * @param msg the message to send | ||
522 | * @param impl_state our `struct Queue` | ||
523 | */ | ||
524 | static void | ||
525 | mq_send (struct GNUNET_MQ_Handle *mq, | ||
526 | const struct GNUNET_MessageHeader *msg, | ||
527 | void *impl_state) | ||
528 | { | ||
529 | struct Queue *queue = impl_state; | ||
530 | size_t msize = ntohs (msg->size); | ||
531 | |||
532 | GNUNET_assert (mq == queue->mq); | ||
533 | GNUNET_assert (NULL == queue->msg); | ||
534 | // Convert to UNIXMessage | ||
535 | queue->msg = GNUNET_malloc (msize + sizeof (struct UNIXMessage)); | ||
536 | queue->msg->header.size = htons (msize + sizeof (struct UNIXMessage)); | ||
537 | queue->msg->sender = my_identity; | ||
538 | memcpy (&queue->msg[1], msg, msize); | ||
539 | GNUNET_CONTAINER_DLL_insert (queue_head, queue_tail, queue); | ||
540 | GNUNET_assert (NULL != unix_sock); | ||
541 | if (NULL == write_task) | ||
542 | write_task = GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
543 | unix_sock, | ||
544 | &select_write_cb, | ||
545 | NULL); | ||
546 | } | ||
547 | |||
548 | |||
549 | /** | ||
550 | * Signature of functions implementing the destruction of a message | ||
551 | * queue. Implementations must not free @a mq, but should take care | ||
552 | * of @a impl_state. | ||
553 | * | ||
554 | * @param mq the message queue to destroy | ||
555 | * @param impl_state our `struct Queue` | ||
556 | */ | ||
557 | static void | ||
558 | mq_destroy (struct GNUNET_MQ_Handle *mq, void *impl_state) | ||
559 | { | ||
560 | struct Queue *queue = impl_state; | ||
561 | |||
562 | if (mq == queue->mq) | ||
563 | { | ||
564 | queue->mq = NULL; | ||
565 | queue_destroy (queue); | ||
566 | } | ||
567 | } | ||
568 | |||
569 | |||
570 | /** | ||
571 | * Implementation function that cancels the currently sent message. | ||
572 | * | ||
573 | * @param mq message queue | ||
574 | * @param impl_state our `struct Queue` | ||
575 | */ | ||
576 | static void | ||
577 | mq_cancel (struct GNUNET_MQ_Handle *mq, void *impl_state) | ||
578 | { | ||
579 | struct Queue *queue = impl_state; | ||
580 | |||
581 | GNUNET_assert (NULL != queue->msg); | ||
582 | queue->msg = NULL; | ||
583 | GNUNET_CONTAINER_DLL_remove (queue_head, queue_tail, queue); | ||
584 | GNUNET_assert (NULL != write_task); | ||
585 | if (NULL == queue_head) | ||
586 | { | ||
587 | GNUNET_SCHEDULER_cancel (write_task); | ||
588 | write_task = NULL; | ||
589 | } | ||
590 | } | ||
591 | |||
592 | |||
593 | /** | ||
594 | * Generic error handler, called with the appropriate | ||
595 | * error code and the same closure specified at the creation of | ||
596 | * the message queue. | ||
597 | * Not every message queue implementation supports an error handler. | ||
598 | * | ||
599 | * @param cls our `struct Queue` | ||
600 | * @param error error code | ||
601 | */ | ||
602 | static void | ||
603 | mq_error (void *cls, enum GNUNET_MQ_Error error) | ||
604 | { | ||
605 | struct Queue *queue = cls; | ||
606 | |||
607 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
608 | "UNIX MQ error in queue to %s: %d\n", | ||
609 | GNUNET_i2s (&queue->target), | ||
610 | (int) error); | ||
611 | queue_destroy (queue); | ||
612 | } | ||
613 | |||
614 | |||
615 | /** | ||
616 | * Creates a new outbound queue the transport service will use to send | ||
617 | * data to another peer. | ||
618 | * | ||
619 | * @param peer the target peer | ||
620 | * @param cs inbound or outbound queue | ||
621 | * @param un the address | ||
622 | * @param un_len number of bytes in @a un | ||
623 | * @return the queue or NULL of max connections exceeded | ||
624 | */ | ||
625 | static struct Queue * | ||
626 | setup_queue (const struct GNUNET_PeerIdentity *target, | ||
627 | enum GNUNET_TRANSPORT_ConnectionStatus cs, | ||
628 | const struct sockaddr_un *un, | ||
629 | socklen_t un_len) | ||
630 | { | ||
631 | struct Queue *queue; | ||
632 | |||
633 | queue = GNUNET_new (struct Queue); | ||
634 | queue->target = *target; | ||
635 | queue->address = GNUNET_memdup (un, un_len); | ||
636 | queue->address_len = un_len; | ||
637 | (void) GNUNET_CONTAINER_multipeermap_put ( | ||
638 | queue_map, | ||
639 | &queue->target, | ||
640 | queue, | ||
641 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE); | ||
642 | GNUNET_STATISTICS_set (stats, | ||
643 | "# queues active", | ||
644 | GNUNET_CONTAINER_multipeermap_size (queue_map), | ||
645 | GNUNET_NO); | ||
646 | queue->timeout = | ||
647 | GNUNET_TIME_relative_to_absolute (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT); | ||
648 | queue->timeout_task = | ||
649 | GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT, | ||
650 | &queue_timeout, | ||
651 | queue); | ||
652 | queue->mq = GNUNET_MQ_queue_for_callbacks (&mq_send, | ||
653 | &mq_destroy, | ||
654 | &mq_cancel, | ||
655 | queue, | ||
656 | NULL, | ||
657 | &mq_error, | ||
658 | queue); | ||
659 | { | ||
660 | char *foreign_addr; | ||
661 | |||
662 | if ('\0' == un->sun_path[0]) | ||
663 | GNUNET_asprintf (&foreign_addr, | ||
664 | "%s-@%s", | ||
665 | COMMUNICATOR_ADDRESS_PREFIX, | ||
666 | &un->sun_path[1]); | ||
667 | else | ||
668 | GNUNET_asprintf (&foreign_addr, | ||
669 | "%s-%s", | ||
670 | COMMUNICATOR_ADDRESS_PREFIX, | ||
671 | un->sun_path); | ||
672 | queue->qh = GNUNET_TRANSPORT_communicator_mq_add (ch, | ||
673 | &queue->target, | ||
674 | foreign_addr, | ||
675 | UNIX_MTU - sizeof (struct | ||
676 | UNIXMessage), | ||
677 | GNUNET_TRANSPORT_QUEUE_LENGTH_UNLIMITED, | ||
678 | 0, | ||
679 | GNUNET_NT_LOOPBACK, | ||
680 | cs, | ||
681 | queue->mq); | ||
682 | GNUNET_free (foreign_addr); | ||
683 | } | ||
684 | return queue; | ||
685 | } | ||
686 | |||
687 | |||
688 | /** | ||
689 | * We have been notified that our socket has something to read. Do the | ||
690 | * read and reschedule this function to be called again once more is | ||
691 | * available. | ||
692 | * | ||
693 | * @param cls NULL | ||
694 | */ | ||
695 | static void | ||
696 | select_read_cb (void *cls); | ||
697 | |||
698 | |||
699 | /** | ||
700 | * Function called when message was successfully passed to | ||
701 | * transport service. Continue read activity. | ||
702 | * | ||
703 | * @param cls NULL | ||
704 | * @param success #GNUNET_OK on success | ||
705 | */ | ||
706 | static void | ||
707 | receive_complete_cb (void *cls, int success) | ||
708 | { | ||
709 | (void) cls; | ||
710 | delivering_messages--; | ||
711 | if (GNUNET_OK != success) | ||
712 | GNUNET_STATISTICS_update (stats, | ||
713 | "# transport transmission failures", | ||
714 | 1, | ||
715 | GNUNET_NO); | ||
716 | if ((NULL == read_task) && (delivering_messages < max_queue_length) && | ||
717 | (NULL != unix_sock)) | ||
718 | read_task = GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
719 | unix_sock, | ||
720 | &select_read_cb, | ||
721 | NULL); | ||
722 | } | ||
723 | |||
724 | |||
725 | /** | ||
726 | * We have been notified that our socket has something to read. Do the | ||
727 | * read and reschedule this function to be called again once more is | ||
728 | * available. | ||
729 | * | ||
730 | * @param cls NULL | ||
731 | */ | ||
732 | static void | ||
733 | select_read_cb (void *cls) | ||
734 | { | ||
735 | char buf[65536] GNUNET_ALIGN; | ||
736 | struct Queue *queue; | ||
737 | const struct UNIXMessage *msg; | ||
738 | struct sockaddr_un un; | ||
739 | socklen_t addrlen; | ||
740 | ssize_t ret; | ||
741 | uint16_t msize; | ||
742 | |||
743 | GNUNET_assert (NULL != unix_sock); | ||
744 | read_task = GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
745 | unix_sock, | ||
746 | &select_read_cb, | ||
747 | NULL); | ||
748 | addrlen = sizeof(un); | ||
749 | memset (&un, 0, sizeof(un)); | ||
750 | ret = GNUNET_NETWORK_socket_recvfrom (unix_sock, | ||
751 | buf, | ||
752 | sizeof(buf), | ||
753 | (struct sockaddr *) &un, | ||
754 | &addrlen); | ||
755 | if ((-1 == ret) && ((EAGAIN == errno) || (ENOBUFS == errno))) | ||
756 | return; | ||
757 | if (-1 == ret) | ||
758 | { | ||
759 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "recvfrom"); | ||
760 | return; | ||
761 | } | ||
762 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
763 | "Read %d bytes from socket %s\n", | ||
764 | (int) ret, | ||
765 | un.sun_path); | ||
766 | GNUNET_assert (AF_UNIX == (un.sun_family)); | ||
767 | msg = (struct UNIXMessage *) buf; | ||
768 | msize = ntohs (msg->header.size); | ||
769 | if ((msize < sizeof(struct UNIXMessage)) || (msize > ret)) | ||
770 | { | ||
771 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
772 | "Wrong message size: %d bytes\n", | ||
773 | msize); | ||
774 | GNUNET_break_op (0); | ||
775 | return; | ||
776 | } | ||
777 | queue = lookup_queue (&msg->sender, &un, addrlen); | ||
778 | if (NULL == queue) | ||
779 | queue = | ||
780 | setup_queue (&msg->sender, GNUNET_TRANSPORT_CS_INBOUND, &un, addrlen); | ||
781 | else | ||
782 | reschedule_queue_timeout (queue); | ||
783 | if (NULL == queue) | ||
784 | { | ||
785 | GNUNET_log ( | ||
786 | GNUNET_ERROR_TYPE_ERROR, | ||
787 | _ ( | ||
788 | "Maximum number of UNIX connections exceeded, dropping incoming message\n")); | ||
789 | return; | ||
790 | } | ||
791 | |||
792 | { | ||
793 | uint16_t tsize = msize - sizeof(struct UNIXMessage); | ||
794 | |||
795 | const struct GNUNET_MessageHeader *currhdr; | ||
796 | struct GNUNET_MessageHeader al_hdr; | ||
797 | |||
798 | currhdr = (const struct GNUNET_MessageHeader *) &msg[1]; | ||
799 | /* ensure aligned access */ | ||
800 | memcpy (&al_hdr, currhdr, sizeof(al_hdr)); | ||
801 | if ((tsize < sizeof(struct GNUNET_MessageHeader)) || | ||
802 | (tsize != ntohs (al_hdr.size))) | ||
803 | { | ||
804 | GNUNET_break_op (0); | ||
805 | return; | ||
806 | } | ||
807 | ret = GNUNET_TRANSPORT_communicator_receive (ch, | ||
808 | &msg->sender, | ||
809 | currhdr, | ||
810 | GNUNET_TIME_UNIT_FOREVER_REL, | ||
811 | &receive_complete_cb, | ||
812 | NULL); | ||
813 | if (GNUNET_SYSERR == ret) | ||
814 | { | ||
815 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
816 | "Transport not up!\n"); | ||
817 | return; /* transport not up */ | ||
818 | } | ||
819 | if (GNUNET_NO == ret) | ||
820 | { | ||
821 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
822 | "Error sending message to transport\n"); | ||
823 | return; | ||
824 | } | ||
825 | delivering_messages++; | ||
826 | } | ||
827 | if (delivering_messages >= max_queue_length) | ||
828 | { | ||
829 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
830 | "Back pressure %llu\n", delivering_messages); | ||
831 | |||
832 | /* we should try to apply 'back pressure' */ | ||
833 | GNUNET_SCHEDULER_cancel (read_task); | ||
834 | read_task = NULL; | ||
835 | } | ||
836 | } | ||
837 | |||
838 | |||
839 | /** | ||
840 | * Function called by the transport service to initialize a | ||
841 | * message queue given address information about another peer. | ||
842 | * If and when the communication channel is established, the | ||
843 | * communicator must call #GNUNET_TRANSPORT_communicator_mq_add() | ||
844 | * to notify the service that the channel is now up. It is | ||
845 | * the responsibility of the communicator to manage sane | ||
846 | * retries and timeouts for any @a peer/@a address combination | ||
847 | * provided by the transport service. Timeouts and retries | ||
848 | * do not need to be signalled to the transport service. | ||
849 | * | ||
850 | * @param cls closure | ||
851 | * @param peer identity of the other peer | ||
852 | * @param address where to send the message, human-readable | ||
853 | * communicator-specific format, 0-terminated, UTF-8 | ||
854 | * @return #GNUNET_OK on success, #GNUNET_SYSERR if the provided address is invalid | ||
855 | */ | ||
856 | static int | ||
857 | mq_init (void *cls, const struct GNUNET_PeerIdentity *peer, const char *address) | ||
858 | { | ||
859 | struct Queue *queue; | ||
860 | const char *path; | ||
861 | struct sockaddr_un *un; | ||
862 | socklen_t un_len; | ||
863 | |||
864 | (void) cls; | ||
865 | if (0 != strncmp (address, | ||
866 | COMMUNICATOR_ADDRESS_PREFIX "-", | ||
867 | strlen (COMMUNICATOR_ADDRESS_PREFIX "-"))) | ||
868 | { | ||
869 | GNUNET_break_op (0); | ||
870 | return GNUNET_SYSERR; | ||
871 | } | ||
872 | path = &address[strlen (COMMUNICATOR_ADDRESS_PREFIX "-")]; | ||
873 | un = unix_address_to_sockaddr (path, &un_len); | ||
874 | queue = lookup_queue (peer, un, un_len); | ||
875 | if (NULL != queue) | ||
876 | { | ||
877 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
878 | "Address `%s' for %s ignored, queue exists\n", | ||
879 | path, | ||
880 | GNUNET_i2s (peer)); | ||
881 | GNUNET_free (un); | ||
882 | return GNUNET_OK; | ||
883 | } | ||
884 | queue = setup_queue (peer, GNUNET_TRANSPORT_CS_OUTBOUND, un, un_len); | ||
885 | GNUNET_free (un); | ||
886 | if (NULL == queue) | ||
887 | { | ||
888 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
889 | "Failed to setup queue to %s at `%s'\n", | ||
890 | GNUNET_i2s (peer), | ||
891 | path); | ||
892 | return GNUNET_NO; | ||
893 | } | ||
894 | return GNUNET_OK; | ||
895 | } | ||
896 | |||
897 | |||
898 | /** | ||
899 | * Iterator over all message queues to clean up. | ||
900 | * | ||
901 | * @param cls NULL | ||
902 | * @param target unused | ||
903 | * @param value the queue to destroy | ||
904 | * @return #GNUNET_OK to continue to iterate | ||
905 | */ | ||
906 | static int | ||
907 | get_queue_delete_it (void *cls, | ||
908 | const struct GNUNET_PeerIdentity *target, | ||
909 | void *value) | ||
910 | { | ||
911 | struct Queue *queue = value; | ||
912 | |||
913 | (void) cls; | ||
914 | (void) target; | ||
915 | queue_destroy (queue); | ||
916 | return GNUNET_OK; | ||
917 | } | ||
918 | |||
919 | |||
920 | /** | ||
921 | * Shutdown the UNIX communicator. | ||
922 | * | ||
923 | * @param cls NULL (always) | ||
924 | */ | ||
925 | static void | ||
926 | do_shutdown (void *cls) | ||
927 | { | ||
928 | if (NULL != read_task) | ||
929 | { | ||
930 | GNUNET_SCHEDULER_cancel (read_task); | ||
931 | read_task = NULL; | ||
932 | } | ||
933 | if (NULL != write_task) | ||
934 | { | ||
935 | GNUNET_SCHEDULER_cancel (write_task); | ||
936 | write_task = NULL; | ||
937 | } | ||
938 | if (NULL != unix_sock) | ||
939 | { | ||
940 | GNUNET_break (GNUNET_OK == GNUNET_NETWORK_socket_close (unix_sock)); | ||
941 | unix_sock = NULL; | ||
942 | } | ||
943 | GNUNET_CONTAINER_multipeermap_iterate (queue_map, &get_queue_delete_it, NULL); | ||
944 | GNUNET_CONTAINER_multipeermap_destroy (queue_map); | ||
945 | if (NULL != ai) | ||
946 | { | ||
947 | GNUNET_TRANSPORT_communicator_address_remove (ai); | ||
948 | ai = NULL; | ||
949 | } | ||
950 | if (NULL != ch) | ||
951 | { | ||
952 | GNUNET_TRANSPORT_communicator_disconnect (ch); | ||
953 | ch = NULL; | ||
954 | } | ||
955 | if (NULL != stats) | ||
956 | { | ||
957 | GNUNET_STATISTICS_destroy (stats, GNUNET_NO); | ||
958 | stats = NULL; | ||
959 | } | ||
960 | } | ||
961 | |||
962 | |||
963 | /** | ||
964 | * Function called when the transport service has received an | ||
965 | * acknowledgement for this communicator (!) via a different return | ||
966 | * path. | ||
967 | * | ||
968 | * Not applicable for UNIX. | ||
969 | * | ||
970 | * @param cls closure | ||
971 | * @param sender which peer sent the notification | ||
972 | * @param msg payload | ||
973 | */ | ||
974 | static void | ||
975 | enc_notify_cb (void *cls, | ||
976 | const struct GNUNET_PeerIdentity *sender, | ||
977 | const struct GNUNET_MessageHeader *msg) | ||
978 | { | ||
979 | (void) cls; | ||
980 | (void) sender; | ||
981 | (void) msg; | ||
982 | GNUNET_break_op (0); | ||
983 | } | ||
984 | |||
985 | |||
986 | /** | ||
987 | * Setup communicator and launch network interactions. | ||
988 | * | ||
989 | * @param cls NULL (always) | ||
990 | * @param args remaining command-line arguments | ||
991 | * @param cfgfile name of the configuration file used (for saving, can be NULL!) | ||
992 | * @param cfg configuration | ||
993 | */ | ||
994 | static void | ||
995 | run (void *cls, | ||
996 | char *const *args, | ||
997 | const char *cfgfile, | ||
998 | const struct GNUNET_CONFIGURATION_Handle *cfg) | ||
999 | { | ||
1000 | char *unix_socket_path; | ||
1001 | struct sockaddr_un *un; | ||
1002 | socklen_t un_len; | ||
1003 | char *my_addr; | ||
1004 | struct GNUNET_CRYPTO_EddsaPrivateKey *my_private_key; | ||
1005 | |||
1006 | (void) cls; | ||
1007 | delivering_messages = 0; | ||
1008 | |||
1009 | my_private_key = GNUNET_CRYPTO_eddsa_key_create_from_configuration (cfg); | ||
1010 | if (NULL == my_private_key) | ||
1011 | { | ||
1012 | GNUNET_log ( | ||
1013 | GNUNET_ERROR_TYPE_ERROR, | ||
1014 | _ ( | ||
1015 | "UNIX communicator is lacking key configuration settings. Exiting.\n")); | ||
1016 | GNUNET_SCHEDULER_shutdown (); | ||
1017 | return; | ||
1018 | } | ||
1019 | GNUNET_CRYPTO_eddsa_key_get_public (my_private_key, &my_identity.public_key); | ||
1020 | |||
1021 | if (GNUNET_OK != | ||
1022 | GNUNET_CONFIGURATION_get_value_filename (cfg, | ||
1023 | COMMUNICATOR_CONFIG_SECTION, | ||
1024 | "UNIXPATH", | ||
1025 | &unix_socket_path)) | ||
1026 | { | ||
1027 | GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR, | ||
1028 | COMMUNICATOR_CONFIG_SECTION, | ||
1029 | "UNIXPATH"); | ||
1030 | return; | ||
1031 | } | ||
1032 | if (GNUNET_OK != | ||
1033 | GNUNET_CONFIGURATION_get_value_number (cfg, | ||
1034 | COMMUNICATOR_CONFIG_SECTION, | ||
1035 | "MAX_QUEUE_LENGTH", | ||
1036 | &max_queue_length)) | ||
1037 | max_queue_length = DEFAULT_MAX_QUEUE_LENGTH; | ||
1038 | |||
1039 | un = unix_address_to_sockaddr (unix_socket_path, &un_len); | ||
1040 | if (NULL == un) | ||
1041 | { | ||
1042 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1043 | "Failed to setup UNIX domain socket address with path `%s'\n", | ||
1044 | unix_socket_path); | ||
1045 | GNUNET_free (unix_socket_path); | ||
1046 | return; | ||
1047 | } | ||
1048 | unix_sock = GNUNET_NETWORK_socket_create (AF_UNIX, SOCK_DGRAM, 0); | ||
1049 | if (NULL == unix_sock) | ||
1050 | { | ||
1051 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "socket"); | ||
1052 | GNUNET_free (un); | ||
1053 | GNUNET_free (unix_socket_path); | ||
1054 | return; | ||
1055 | } | ||
1056 | if (('\0' != un->sun_path[0]) && | ||
1057 | (GNUNET_OK != GNUNET_DISK_directory_create_for_file (un->sun_path))) | ||
1058 | { | ||
1059 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1060 | _ ("Cannot create path to `%s'\n"), | ||
1061 | un->sun_path); | ||
1062 | GNUNET_NETWORK_socket_close (unix_sock); | ||
1063 | unix_sock = NULL; | ||
1064 | GNUNET_free (un); | ||
1065 | GNUNET_free (unix_socket_path); | ||
1066 | return; | ||
1067 | } | ||
1068 | if (GNUNET_OK != GNUNET_NETWORK_socket_bind (unix_sock, | ||
1069 | (const struct sockaddr *) un, | ||
1070 | un_len)) | ||
1071 | { | ||
1072 | GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "bind", un->sun_path); | ||
1073 | GNUNET_NETWORK_socket_close (unix_sock); | ||
1074 | unix_sock = NULL; | ||
1075 | GNUNET_free (un); | ||
1076 | GNUNET_free (unix_socket_path); | ||
1077 | return; | ||
1078 | } | ||
1079 | GNUNET_free (un); | ||
1080 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Bound to `%s'\n", unix_socket_path); | ||
1081 | stats = GNUNET_STATISTICS_create ("C-UNIX", cfg); | ||
1082 | GNUNET_SCHEDULER_add_shutdown (&do_shutdown, NULL); | ||
1083 | read_task = GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL, | ||
1084 | unix_sock, | ||
1085 | &select_read_cb, | ||
1086 | NULL); | ||
1087 | queue_map = GNUNET_CONTAINER_multipeermap_create (10, GNUNET_NO); | ||
1088 | ch = GNUNET_TRANSPORT_communicator_connect (cfg, | ||
1089 | COMMUNICATOR_CONFIG_SECTION, | ||
1090 | COMMUNICATOR_ADDRESS_PREFIX, | ||
1091 | GNUNET_TRANSPORT_CC_RELIABLE, | ||
1092 | &mq_init, | ||
1093 | NULL, | ||
1094 | &enc_notify_cb, | ||
1095 | NULL); | ||
1096 | if (NULL == ch) | ||
1097 | { | ||
1098 | GNUNET_break (0); | ||
1099 | GNUNET_SCHEDULER_shutdown (); | ||
1100 | GNUNET_free (unix_socket_path); | ||
1101 | return; | ||
1102 | } | ||
1103 | GNUNET_asprintf (&my_addr, | ||
1104 | "%s-%s", | ||
1105 | COMMUNICATOR_ADDRESS_PREFIX, | ||
1106 | unix_socket_path); | ||
1107 | GNUNET_free (unix_socket_path); | ||
1108 | ai = GNUNET_TRANSPORT_communicator_address_add (ch, | ||
1109 | my_addr, | ||
1110 | GNUNET_NT_LOOPBACK, | ||
1111 | GNUNET_TIME_UNIT_FOREVER_REL); | ||
1112 | GNUNET_free (my_addr); | ||
1113 | } | ||
1114 | |||
1115 | |||
1116 | /** | ||
1117 | * The main function for the UNIX communicator. | ||
1118 | * | ||
1119 | * @param argc number of arguments from the command line | ||
1120 | * @param argv command line arguments | ||
1121 | * @return 0 ok, 1 on error | ||
1122 | */ | ||
1123 | int | ||
1124 | main (int argc, char *const *argv) | ||
1125 | { | ||
1126 | static const struct GNUNET_GETOPT_CommandLineOption options[] = { | ||
1127 | GNUNET_GETOPT_OPTION_END | ||
1128 | }; | ||
1129 | int ret; | ||
1130 | |||
1131 | if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv)) | ||
1132 | return 2; | ||
1133 | |||
1134 | ret = (GNUNET_OK == | ||
1135 | GNUNET_PROGRAM_run (argc, | ||
1136 | argv, | ||
1137 | "gnunet-communicator-unix", | ||
1138 | _ ("GNUnet UNIX domain socket communicator"), | ||
1139 | options, | ||
1140 | &run, | ||
1141 | NULL)) | ||
1142 | ? 0 | ||
1143 | : 1; | ||
1144 | GNUNET_free_nz ((void *) argv); | ||
1145 | return ret; | ||
1146 | } | ||
1147 | |||
1148 | |||
1149 | #if defined(__linux__) && defined(__GLIBC__) | ||
1150 | #include <malloc.h> | ||
1151 | |||
1152 | /** | ||
1153 | * MINIMIZE heap size (way below 128k) since this process doesn't need much. | ||
1154 | */ | ||
1155 | void __attribute__ ((constructor)) | ||
1156 | GNUNET_TRANSPORT_communicator_unix_memory_init () | ||
1157 | { | ||
1158 | mallopt (M_TRIM_THRESHOLD, 4 * 1024); | ||
1159 | mallopt (M_TOP_PAD, 1 * 1024); | ||
1160 | malloc_trim (0); | ||
1161 | } | ||
1162 | |||
1163 | |||
1164 | #endif | ||
1165 | |||
1166 | /* end of gnunet-communicator-unix.c */ | ||
diff --git a/src/service/transport/gnunet-service-transport.c b/src/service/transport/gnunet-service-transport.c new file mode 100644 index 000000000..91ce801db --- /dev/null +++ b/src/service/transport/gnunet-service-transport.c | |||
@@ -0,0 +1,12663 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2010-2016, 2018, 2019 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | /** | ||
21 | * @file transport/gnunet-service-transport.c | ||
22 | * @brief main for gnunet-service-transport | ||
23 | * @author Christian Grothoff | ||
24 | * | ||
25 | * TODO: | ||
26 | * Implement next: | ||
27 | * - review retransmission logic, right now there is no smartness there! | ||
28 | * => congestion control, etc [PERFORMANCE-BASICS] | ||
29 | * | ||
30 | * Optimizations-Statistics: | ||
31 | * - Track ACK losses based on ACK-counter [ROUTING] | ||
32 | * - Need to track total bandwidth per VirtualLink and adjust how frequently | ||
33 | * we send FC messages based on bandwidth-delay-product (and relation | ||
34 | * to the window size!). See OPTIMIZE-FC-BDP. | ||
35 | * - Consider more statistics in #check_connection_quality() [FIXME-CONQ-STATISTICS] | ||
36 | * - Adapt available_fc_window_size, using larger values for high-bandwidth | ||
37 | * and high-latency links *if* we have the RAM [GOODPUT / utilization / stalls] | ||
38 | * - Set last_window_consum_limit promise properly based on | ||
39 | * latency and bandwidth of the respective connection [GOODPUT / utilization / stalls] | ||
40 | * | ||
41 | * Optimizations-DV: | ||
42 | * - When forwarding DV learn messages, if a peer is reached that | ||
43 | * has a *bidirectional* link to the origin beyond 1st hop, | ||
44 | * do NOT forward it to peers _other_ than the origin, as | ||
45 | * there is clearly a better path directly from the origin to | ||
46 | * whatever else we could reach. | ||
47 | * - When we passively learned DV (with unconfirmed freshness), we | ||
48 | * right now add the path to our list but with a zero path_valid_until | ||
49 | * time and only use it for unconfirmed routes. However, we could consider | ||
50 | * triggering an explicit validation mechanism ourselves, specifically routing | ||
51 | * a challenge-response message over the path [ROUTING] | ||
52 | * = if available, try to confirm unconfirmed DV paths when trying to establish | ||
53 | * virtual link for a `struct IncomingRequest`. (i.e. if DVH is | ||
54 | * unconfirmed, incoming requests cause us to try to validate a passively | ||
55 | * learned path (requires new message type!)) | ||
56 | * | ||
57 | * Optimizations-Fragmentation: | ||
58 | * - Fragments send over a reliable channel could do without the | ||
59 | * AcknowledgementUUIDP altogether, as they won't be acked! [BANDWIDTH] | ||
60 | * (-> have 2nd type of acknowledgment message; low priority, as we | ||
61 | * do not have an MTU-limited *reliable* communicator) [FIXME-FRAG-REL-UUID] | ||
62 | * - if messages are below MTU, consider adding ACKs and other stuff | ||
63 | * to the same transmission to avoid tiny messages (requires planning at | ||
64 | * receiver, and additional MST-style demultiplex at receiver!) [PACKET COUNT] | ||
65 | * | ||
66 | * Optimizations-internals: | ||
67 | * - queue_send_msg by API design has to make a copy | ||
68 | * of the payload, and route_message on top of that requires a malloc/free. | ||
69 | * Change design to approximate "zero" copy better... [CPU] | ||
70 | * - could avoid copying body of message into each fragment and keep | ||
71 | * fragments as just pointers into the original message and only | ||
72 | * fully build fragments just before transmission (optimization, should | ||
73 | * reduce CPU and memory use) [CPU, MEMORY] | ||
74 | */ | ||
75 | #include "platform.h" | ||
76 | #include "gnunet_util_lib.h" | ||
77 | #include "gnunet_statistics_service.h" | ||
78 | #include "gnunet_transport_monitor_service.h" | ||
79 | #include "gnunet_peerstore_service.h" | ||
80 | #include "gnunet_nat_service.h" | ||
81 | #include "gnunet_hello_uri_lib.h" | ||
82 | #include "gnunet_signatures.h" | ||
83 | #include "transport.h" | ||
84 | |||
85 | /** | ||
86 | * Size of ring buffer to cache CORE and forwarded DVBox messages. | ||
87 | */ | ||
88 | #define RING_BUFFER_SIZE 16 | ||
89 | |||
90 | /** | ||
91 | * Maximum number of FC retransmissions for a running retransmission task. | ||
92 | */ | ||
93 | #define MAX_FC_RETRANSMIT_COUNT 1000 | ||
94 | |||
95 | /** | ||
96 | * Maximum number of messages we acknowledge together in one | ||
97 | * cumulative ACK. Larger values may save a bit of bandwidth. | ||
98 | */ | ||
99 | #define MAX_CUMMULATIVE_ACKS 64 | ||
100 | |||
101 | /** | ||
102 | * What is the 1:n chance that we send a Flow control response when | ||
103 | * receiving a flow control message that did not change anything for | ||
104 | * us? Basically, this is used in the case where both peers are stuck | ||
105 | * on flow control (no window changes), but one might continue sending | ||
106 | * flow control messages to the other peer as the first FC message | ||
107 | * when things stalled got lost, and then subsequently the other peer | ||
108 | * does *usually* not respond as nothing changed. So to ensure that | ||
109 | * eventually the FC messages stop, we do send with 1/8th probability | ||
110 | * an FC message even if nothing changed. That prevents one peer | ||
111 | * being stuck in sending (useless) FC messages "forever". | ||
112 | */ | ||
113 | #define FC_NO_CHANGE_REPLY_PROBABILITY 8 | ||
114 | |||
115 | /** | ||
116 | * What is the size we assume for a read operation in the | ||
117 | * absence of an MTU for the purpose of flow control? | ||
118 | */ | ||
119 | #define IN_PACKET_SIZE_WITHOUT_MTU 128 | ||
120 | |||
121 | /** | ||
122 | * Number of slots we keep of historic data for computation of | ||
123 | * goodput / message loss ratio. | ||
124 | */ | ||
125 | #define GOODPUT_AGING_SLOTS 4 | ||
126 | |||
127 | /** | ||
128 | * How big is the flow control window size by default; | ||
129 | * limits per-neighbour RAM utilization. | ||
130 | */ | ||
131 | #define DEFAULT_WINDOW_SIZE (128 * 1024) | ||
132 | |||
133 | /** | ||
134 | * For how many incoming connections do we try to create a | ||
135 | * virtual link for (at the same time!). This does NOT | ||
136 | * limit the number of incoming connections, just the number | ||
137 | * for which we are actively trying to find working addresses | ||
138 | * in the absence (!) of our own applications wanting the | ||
139 | * link to go up. | ||
140 | */ | ||
141 | #define MAX_INCOMING_REQUEST 16 | ||
142 | |||
143 | /** | ||
144 | * Maximum number of peers we select for forwarding DVInit | ||
145 | * messages at the same time (excluding initiator). | ||
146 | */ | ||
147 | #define MAX_DV_DISCOVERY_SELECTION 16 | ||
148 | |||
149 | /** | ||
150 | * Window size. How many messages to the same target do we pass | ||
151 | * to CORE without a RECV_OK in between? Small values limit | ||
152 | * thoughput, large values will increase latency. | ||
153 | * | ||
154 | * FIXME-OPTIMIZE: find out what good values are experimentally, | ||
155 | * maybe set adaptively (i.e. to observed available bandwidth). | ||
156 | */ | ||
157 | #define RECV_WINDOW_SIZE 4 | ||
158 | |||
159 | /** | ||
160 | * Minimum number of hops we should forward DV learn messages | ||
161 | * even if they are NOT useful for us in hope of looping | ||
162 | * back to the initiator? | ||
163 | * | ||
164 | * FIXME: allow initiator some control here instead? | ||
165 | */ | ||
166 | #define MIN_DV_PATH_LENGTH_FOR_INITIATOR 3 | ||
167 | |||
168 | /** | ||
169 | * Maximum DV distance allowed ever. | ||
170 | */ | ||
171 | #define MAX_DV_HOPS_ALLOWED 16 | ||
172 | |||
173 | /** | ||
174 | * Maximum number of DV learning activities we may | ||
175 | * have pending at the same time. | ||
176 | */ | ||
177 | #define MAX_DV_LEARN_PENDING 64 | ||
178 | |||
179 | /** | ||
180 | * Maximum number of DV paths we keep simultaneously to the same target. | ||
181 | */ | ||
182 | #define MAX_DV_PATHS_TO_TARGET 3 | ||
183 | |||
184 | /** | ||
185 | * If a queue delays the next message by more than this number | ||
186 | * of seconds we log a warning. Note: this is for testing, | ||
187 | * the value chosen here might be too aggressively low! | ||
188 | */ | ||
189 | #define DELAY_WARN_THRESHOLD \ | ||
190 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5) | ||
191 | |||
192 | /** | ||
193 | * If a DVBox could not be forwarded after this number of | ||
194 | * seconds we drop it. | ||
195 | */ | ||
196 | #define DV_FORWARD_TIMEOUT \ | ||
197 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 60) | ||
198 | |||
199 | /** | ||
200 | * Default value for how long we wait for reliability ack. | ||
201 | */ | ||
202 | #define DEFAULT_ACK_WAIT_DURATION \ | ||
203 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1) | ||
204 | |||
205 | /** | ||
206 | * We only consider queues as "quality" connections when | ||
207 | * suppressing the generation of DV initiation messages if | ||
208 | * the latency of the queue is below this threshold. | ||
209 | */ | ||
210 | #define DV_QUALITY_RTT_THRESHOLD \ | ||
211 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1) | ||
212 | |||
213 | /** | ||
214 | * How long do we consider a DV path valid if we see no | ||
215 | * further updates on it? Note: the value chosen here might be too low! | ||
216 | */ | ||
217 | #define DV_PATH_VALIDITY_TIMEOUT \ | ||
218 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 5) | ||
219 | |||
220 | /** | ||
221 | * How long do we cache backchannel (struct Backtalker) information | ||
222 | * after a backchannel goes inactive? | ||
223 | */ | ||
224 | #define BACKCHANNEL_INACTIVITY_TIMEOUT \ | ||
225 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 5) | ||
226 | |||
227 | /** | ||
228 | * How long before paths expire would we like to (re)discover DV paths? Should | ||
229 | * be below #DV_PATH_VALIDITY_TIMEOUT. | ||
230 | */ | ||
231 | #define DV_PATH_DISCOVERY_FREQUENCY \ | ||
232 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 4) | ||
233 | |||
234 | /** | ||
235 | * How long are ephemeral keys valid? | ||
236 | */ | ||
237 | #define EPHEMERAL_VALIDITY \ | ||
238 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 4) | ||
239 | |||
240 | /** | ||
241 | * How long do we keep partially reassembled messages around before giving up? | ||
242 | */ | ||
243 | #define REASSEMBLY_EXPIRATION \ | ||
244 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 4) | ||
245 | |||
246 | /** | ||
247 | * What is the fastest rate at which we send challenges *if* we keep learning | ||
248 | * an address (gossip, DHT, etc.)? | ||
249 | */ | ||
250 | #define FAST_VALIDATION_CHALLENGE_FREQ \ | ||
251 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 1) | ||
252 | |||
253 | /** | ||
254 | * What is the slowest rate at which we send challenges? | ||
255 | */ | ||
256 | #define MAX_VALIDATION_CHALLENGE_FREQ \ | ||
257 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_DAYS, 1) | ||
258 | |||
259 | /** | ||
260 | * How long until we forget about historic accumulators and thus | ||
261 | * reset the ACK counter? Should exceed the maximum time an | ||
262 | * active connection experiences without an ACK. | ||
263 | */ | ||
264 | #define ACK_CUMMULATOR_TIMEOUT \ | ||
265 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 4) | ||
266 | |||
267 | /** | ||
268 | * What is the non-randomized base frequency at which we | ||
269 | * would initiate DV learn messages? | ||
270 | */ | ||
271 | #define DV_LEARN_BASE_FREQUENCY GNUNET_TIME_UNIT_MINUTES | ||
272 | |||
273 | /** | ||
274 | * How many good connections (confirmed, bi-directional, not DV) | ||
275 | * do we need to have to suppress initiating DV learn messages? | ||
276 | */ | ||
277 | #define DV_LEARN_QUALITY_THRESHOLD 100 | ||
278 | |||
279 | /** | ||
280 | * When do we forget an invalid address for sure? | ||
281 | */ | ||
282 | #define MAX_ADDRESS_VALID_UNTIL \ | ||
283 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MONTHS, 1) | ||
284 | |||
285 | /** | ||
286 | * How long do we consider an address valid if we just checked? | ||
287 | */ | ||
288 | #define ADDRESS_VALIDATION_LIFETIME \ | ||
289 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 4) | ||
290 | |||
291 | /** | ||
292 | * What is the maximum frequency at which we do address validation? | ||
293 | * A random value between 0 and this value is added when scheduling | ||
294 | * the #validation_task (both to ensure we do not validate too often, | ||
295 | * and to randomize a bit). | ||
296 | */ | ||
297 | #define MIN_DELAY_ADDRESS_VALIDATION GNUNET_TIME_UNIT_MILLISECONDS | ||
298 | |||
299 | /** | ||
300 | * How many network RTTs before an address validation expires should we begin | ||
301 | * trying to revalidate? (Note that the RTT used here is the one that we | ||
302 | * experienced during the last validation, not necessarily the latest RTT | ||
303 | * observed). | ||
304 | */ | ||
305 | #define VALIDATION_RTT_BUFFER_FACTOR 3 | ||
306 | |||
307 | /** | ||
308 | * How many messages can we have pending for a given communicator | ||
309 | * process before we start to throttle that communicator? | ||
310 | * | ||
311 | * Used if a communicator might be CPU-bound and cannot handle the traffic. | ||
312 | */ | ||
313 | #define COMMUNICATOR_TOTAL_QUEUE_LIMIT 512 | ||
314 | |||
315 | /** | ||
316 | * How many messages can we have pending for a given queue (queue to | ||
317 | * a particular peer via a communicator) process before we start to | ||
318 | * throttle that queue? | ||
319 | */ | ||
320 | #define QUEUE_LENGTH_LIMIT 32 | ||
321 | |||
322 | /** | ||
323 | * | ||
324 | */ | ||
325 | #define QUEUE_ENTRY_TIMEOUT \ | ||
326 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5) | ||
327 | |||
328 | |||
329 | GNUNET_NETWORK_STRUCT_BEGIN | ||
330 | |||
331 | /** | ||
332 | * Unique identifier we attach to a message. | ||
333 | */ | ||
334 | struct MessageUUIDP | ||
335 | { | ||
336 | /** | ||
337 | * Unique value, generated by incrementing the | ||
338 | * `message_uuid_ctr` of `struct Neighbour`. | ||
339 | */ | ||
340 | uint64_t uuid GNUNET_PACKED; | ||
341 | }; | ||
342 | |||
343 | |||
344 | /** | ||
345 | * Unique identifier to map an acknowledgement to a transmission. | ||
346 | */ | ||
347 | struct AcknowledgementUUIDP | ||
348 | { | ||
349 | /** | ||
350 | * The UUID value. | ||
351 | */ | ||
352 | struct GNUNET_Uuid value; | ||
353 | }; | ||
354 | |||
355 | /** | ||
356 | * Outer layer of an encapsulated backchannel message. | ||
357 | */ | ||
358 | struct TransportBackchannelEncapsulationMessage | ||
359 | { | ||
360 | /** | ||
361 | * Type is #GNUNET_MESSAGE_TYPE_TRANSPORT_BACKCHANNEL_ENCAPSULATION. | ||
362 | */ | ||
363 | struct GNUNET_MessageHeader header; | ||
364 | |||
365 | /* Followed by *another* message header which is the message to | ||
366 | the communicator */ | ||
367 | |||
368 | /* Followed by a 0-terminated name of the communicator */ | ||
369 | }; | ||
370 | |||
371 | |||
372 | /** | ||
373 | * Body by which a peer confirms that it is using an ephemeral key. | ||
374 | */ | ||
375 | struct EphemeralConfirmationPS | ||
376 | { | ||
377 | /** | ||
378 | * Purpose is #GNUNET_SIGNATURE_PURPOSE_TRANSPORT_EPHEMERAL | ||
379 | */ | ||
380 | struct GNUNET_CRYPTO_EccSignaturePurpose purpose; | ||
381 | |||
382 | /** | ||
383 | * How long is this signature over the ephemeral key valid? | ||
384 | * | ||
385 | * Note that the receiver MUST IGNORE the absolute time, and only interpret | ||
386 | * the value as a mononic time and reject "older" values than the last one | ||
387 | * observed. This is necessary as we do not want to require synchronized | ||
388 | * clocks and may not have a bidirectional communication channel. | ||
389 | * | ||
390 | * Even with this, there is no real guarantee against replay achieved here, | ||
391 | * unless the latest timestamp is persisted. While persistence should be | ||
392 | * provided via PEERSTORE, we do not consider the mechanism reliable! Thus, | ||
393 | * communicators must protect against replay attacks when using backchannel | ||
394 | * communication! | ||
395 | */ | ||
396 | struct GNUNET_TIME_AbsoluteNBO sender_monotonic_time; | ||
397 | |||
398 | /** | ||
399 | * Target's peer identity. | ||
400 | */ | ||
401 | struct GNUNET_PeerIdentity target; | ||
402 | |||
403 | /** | ||
404 | * Ephemeral key setup by the sender for @e target, used | ||
405 | * to encrypt the payload. | ||
406 | */ | ||
407 | struct GNUNET_CRYPTO_EcdhePublicKey ephemeral_key; | ||
408 | }; | ||
409 | |||
410 | |||
411 | /** | ||
412 | * Plaintext of the variable-size payload that is encrypted | ||
413 | * within a `struct TransportBackchannelEncapsulationMessage` | ||
414 | */ | ||
415 | struct TransportDVBoxPayloadP | ||
416 | { | ||
417 | /** | ||
418 | * Sender's peer identity. | ||
419 | */ | ||
420 | struct GNUNET_PeerIdentity sender; | ||
421 | |||
422 | /** | ||
423 | * Signature of the sender over an | ||
424 | * #GNUNET_SIGNATURE_PURPOSE_TRANSPORT_EPHEMERAL. | ||
425 | */ | ||
426 | struct GNUNET_CRYPTO_EddsaSignature sender_sig; | ||
427 | |||
428 | /** | ||
429 | * Current monotonic time of the sending transport service. Used to | ||
430 | * detect replayed messages. Note that the receiver should remember | ||
431 | * a list of the recently seen timestamps and only reject messages | ||
432 | * if the timestamp is in the list, or the list is "full" and the | ||
433 | * timestamp is smaller than the lowest in the list. | ||
434 | * | ||
435 | * Like the @e ephemeral_validity, the list of timestamps per peer should be | ||
436 | * persisted to guard against replays after restarts. | ||
437 | */ | ||
438 | struct GNUNET_TIME_AbsoluteNBO monotonic_time; | ||
439 | |||
440 | /* Followed by a `struct GNUNET_MessageHeader` with a message | ||
441 | for the target peer */ | ||
442 | }; | ||
443 | |||
444 | |||
445 | /** | ||
446 | * Outer layer of an encapsulated unfragmented application message sent | ||
447 | * over an unreliable channel. | ||
448 | */ | ||
449 | struct TransportReliabilityBoxMessage | ||
450 | { | ||
451 | /** | ||
452 | * Type is #GNUNET_MESSAGE_TYPE_TRANSPORT_RELIABILITY_BOX | ||
453 | */ | ||
454 | struct GNUNET_MessageHeader header; | ||
455 | |||
456 | /** | ||
457 | * Number of messages still to be sent before a commulative | ||
458 | * ACK is requested. Zero if an ACK is requested immediately. | ||
459 | * In NBO. Note that the receiver may send the ACK faster | ||
460 | * if it believes that is reasonable. | ||
461 | */ | ||
462 | uint32_t ack_countdown GNUNET_PACKED; | ||
463 | |||
464 | /** | ||
465 | * Unique ID of the message used for signalling receipt of | ||
466 | * messages sent over possibly unreliable channels. Should | ||
467 | * be a random. | ||
468 | */ | ||
469 | struct AcknowledgementUUIDP ack_uuid; | ||
470 | }; | ||
471 | |||
472 | |||
473 | /** | ||
474 | * Acknowledgement payload. | ||
475 | */ | ||
476 | struct TransportCummulativeAckPayloadP | ||
477 | { | ||
478 | /** | ||
479 | * How long was the ACK delayed for generating cumulative ACKs? | ||
480 | * Used to calculate the correct network RTT by taking the receipt | ||
481 | * time of the ack minus the transmission time of the sender minus | ||
482 | * this value. | ||
483 | */ | ||
484 | struct GNUNET_TIME_RelativeNBO ack_delay; | ||
485 | |||
486 | /** | ||
487 | * UUID of a message being acknowledged. | ||
488 | */ | ||
489 | struct AcknowledgementUUIDP ack_uuid; | ||
490 | }; | ||
491 | |||
492 | |||
493 | /** | ||
494 | * Confirmation that the receiver got a | ||
495 | * #GNUNET_MESSAGE_TYPE_TRANSPORT_RELIABILITY_BOX. Note that the | ||
496 | * confirmation may be transmitted over a completely different queue, | ||
497 | * so ACKs are identified by a combination of PID of sender and | ||
498 | * message UUID, without the queue playing any role! | ||
499 | */ | ||
500 | struct TransportReliabilityAckMessage | ||
501 | { | ||
502 | /** | ||
503 | * Type is #GNUNET_MESSAGE_TYPE_TRANSPORT_RELIABILITY_ACK | ||
504 | */ | ||
505 | struct GNUNET_MessageHeader header; | ||
506 | |||
507 | /** | ||
508 | * Counter of ACKs transmitted by the sender to us. Incremented | ||
509 | * by one for each ACK, used to detect how many ACKs were lost. | ||
510 | */ | ||
511 | uint32_t ack_counter GNUNET_PACKED; | ||
512 | |||
513 | /* followed by any number of `struct TransportCummulativeAckPayloadP` | ||
514 | messages providing ACKs */ | ||
515 | }; | ||
516 | |||
517 | |||
518 | /** | ||
519 | * Outer layer of an encapsulated fragmented application message. | ||
520 | */ | ||
521 | struct TransportFragmentBoxMessage | ||
522 | { | ||
523 | /** | ||
524 | * Type is #GNUNET_MESSAGE_TYPE_TRANSPORT_FRAGMENT | ||
525 | */ | ||
526 | struct GNUNET_MessageHeader header; | ||
527 | |||
528 | /** | ||
529 | * Offset of this fragment in the overall message. | ||
530 | */ | ||
531 | uint16_t frag_off GNUNET_PACKED; | ||
532 | |||
533 | /** | ||
534 | * Total size of the message that is being fragmented. | ||
535 | */ | ||
536 | uint16_t msg_size GNUNET_PACKED; | ||
537 | |||
538 | /** | ||
539 | * Unique ID of this fragment (and fragment transmission!). Will | ||
540 | * change even if a fragment is retransmitted to make each | ||
541 | * transmission attempt unique! If a client receives a duplicate | ||
542 | * fragment (same @e frag_off for same @a msg_uuid, it must send | ||
543 | * #GNUNET_MESSAGE_TYPE_TRANSPORT_RELIABILITY_ACK immediately. | ||
544 | */ | ||
545 | struct AcknowledgementUUIDP ack_uuid; | ||
546 | |||
547 | /** | ||
548 | * Original message ID for of the message that all the fragments | ||
549 | * belong to. Must be the same for all fragments. | ||
550 | */ | ||
551 | struct MessageUUIDP msg_uuid; | ||
552 | }; | ||
553 | |||
554 | |||
555 | /** | ||
556 | * Content signed by the initator during DV learning. | ||
557 | * | ||
558 | * The signature is required to prevent DDoS attacks. A peer sending out this | ||
559 | * message is potentially generating a lot of traffic that will go back to the | ||
560 | * initator, as peers receiving this message will try to let the initiator | ||
561 | * know that they got the message. | ||
562 | * | ||
563 | * Without this signature, an attacker could abuse this mechanism for traffic | ||
564 | * amplification, sending a lot of traffic to a peer by putting out this type | ||
565 | * of message with the victim's peer identity. | ||
566 | * | ||
567 | * Even with just a signature, traffic amplification would be possible via | ||
568 | * replay attacks. The @e monotonic_time limits such replay attacks, as every | ||
569 | * potential amplificator will check the @e monotonic_time and only respond | ||
570 | * (at most) once per message. | ||
571 | */ | ||
572 | struct DvInitPS | ||
573 | { | ||
574 | /** | ||
575 | * Purpose is #GNUNET_SIGNATURE_PURPOSE_TRANSPORT_DV_INITIATOR | ||
576 | */ | ||
577 | struct GNUNET_CRYPTO_EccSignaturePurpose purpose; | ||
578 | |||
579 | /** | ||
580 | * Time at the initiator when generating the signature. | ||
581 | * | ||
582 | * Note that the receiver MUST IGNORE the absolute time, and only interpret | ||
583 | * the value as a mononic time and reject "older" values than the last one | ||
584 | * observed. This is necessary as we do not want to require synchronized | ||
585 | * clocks and may not have a bidirectional communication channel. | ||
586 | * | ||
587 | * Even with this, there is no real guarantee against replay achieved here, | ||
588 | * unless the latest timestamp is persisted. Persistence should be | ||
589 | * provided via PEERSTORE if possible. | ||
590 | */ | ||
591 | struct GNUNET_TIME_AbsoluteNBO monotonic_time; | ||
592 | |||
593 | /** | ||
594 | * Challenge value used by the initiator to re-identify the path. | ||
595 | */ | ||
596 | struct GNUNET_CRYPTO_ChallengeNonceP challenge; | ||
597 | }; | ||
598 | |||
599 | |||
600 | /** | ||
601 | * Content signed by each peer during DV learning. | ||
602 | * | ||
603 | * This assues the initiator of the DV learning operation that the hop from @e | ||
604 | * pred via the signing peer to @e succ actually exists. This makes it | ||
605 | * impossible for an adversary to supply the network with bogus routes. | ||
606 | * | ||
607 | * The @e challenge is included to provide replay protection for the | ||
608 | * initiator. This way, the initiator knows that the hop existed after the | ||
609 | * original @e challenge was first transmitted, providing a freshness metric. | ||
610 | * | ||
611 | * Peers other than the initiator that passively learn paths by observing | ||
612 | * these messages do NOT benefit from this. Here, an adversary may indeed | ||
613 | * replay old messages. Thus, passively learned paths should always be | ||
614 | * immediately marked as "potentially stale". | ||
615 | */ | ||
616 | struct DvHopPS | ||
617 | { | ||
618 | /** | ||
619 | * Purpose is #GNUNET_SIGNATURE_PURPOSE_TRANSPORT_DV_HOP | ||
620 | */ | ||
621 | struct GNUNET_CRYPTO_EccSignaturePurpose purpose; | ||
622 | |||
623 | /** | ||
624 | * Identity of the previous peer on the path. | ||
625 | */ | ||
626 | struct GNUNET_PeerIdentity pred; | ||
627 | |||
628 | /** | ||
629 | * Identity of the next peer on the path. | ||
630 | */ | ||
631 | struct GNUNET_PeerIdentity succ; | ||
632 | |||
633 | /** | ||
634 | * Challenge value used by the initiator to re-identify the path. | ||
635 | */ | ||
636 | struct GNUNET_CRYPTO_ChallengeNonceP challenge; | ||
637 | }; | ||
638 | |||
639 | |||
640 | /** | ||
641 | * An entry describing a peer on a path in a | ||
642 | * `struct TransportDVLearnMessage` message. | ||
643 | */ | ||
644 | struct DVPathEntryP | ||
645 | { | ||
646 | /** | ||
647 | * Identity of a peer on the path. | ||
648 | */ | ||
649 | struct GNUNET_PeerIdentity hop; | ||
650 | |||
651 | /** | ||
652 | * Signature of this hop over the path, of purpose | ||
653 | * #GNUNET_SIGNATURE_PURPOSE_TRANSPORT_DV_HOP | ||
654 | */ | ||
655 | struct GNUNET_CRYPTO_EddsaSignature hop_sig; | ||
656 | }; | ||
657 | |||
658 | |||
659 | /** | ||
660 | * Internal message used by transport for distance vector learning. | ||
661 | * If @e num_hops does not exceed the threshold, peers should append | ||
662 | * themselves to the peer list and flood the message (possibly only | ||
663 | * to a subset of their neighbours to limit discoverability of the | ||
664 | * network topology). To the extend that the @e bidirectional bits | ||
665 | * are set, peers may learn the inverse paths even if they did not | ||
666 | * initiate. | ||
667 | * | ||
668 | * Unless received on a bidirectional queue and @e num_hops just | ||
669 | * zero, peers that can forward to the initator should always try to | ||
670 | * forward to the initiator. | ||
671 | */ | ||
672 | struct TransportDVLearnMessage | ||
673 | { | ||
674 | /** | ||
675 | * Type is #GNUNET_MESSAGE_TYPE_TRANSPORT_DV_LEARN | ||
676 | */ | ||
677 | struct GNUNET_MessageHeader header; | ||
678 | |||
679 | /** | ||
680 | * Number of hops this messages has travelled, in NBO. Zero if | ||
681 | * sent by initiator. | ||
682 | */ | ||
683 | uint16_t num_hops GNUNET_PACKED; | ||
684 | |||
685 | /** | ||
686 | * Bitmask of the last 16 hops indicating whether they are confirmed | ||
687 | * available (without DV) in both directions or not, in NBO. Used | ||
688 | * to possibly instantly learn a path in both directions. Each peer | ||
689 | * should shift this value by one to the left, and then set the | ||
690 | * lowest bit IF the current sender can be reached from it (without | ||
691 | * DV routing). | ||
692 | */ | ||
693 | uint16_t bidirectional GNUNET_PACKED; | ||
694 | |||
695 | /** | ||
696 | * Peers receiving this message and delaying forwarding to other | ||
697 | * peers for any reason should increment this value by the non-network | ||
698 | * delay created by the peer. | ||
699 | */ | ||
700 | struct GNUNET_TIME_RelativeNBO non_network_delay; | ||
701 | |||
702 | /** | ||
703 | * Time at the initiator when generating the signature. | ||
704 | * | ||
705 | * Note that the receiver MUST IGNORE the absolute time, and only interpret | ||
706 | * the value as a mononic time and reject "older" values than the last one | ||
707 | * observed. This is necessary as we do not want to require synchronized | ||
708 | * clocks and may not have a bidirectional communication channel. | ||
709 | * | ||
710 | * Even with this, there is no real guarantee against replay achieved here, | ||
711 | * unless the latest timestamp is persisted. Persistence should be | ||
712 | * provided via PEERSTORE if possible. | ||
713 | */ | ||
714 | struct GNUNET_TIME_AbsoluteNBO monotonic_time; | ||
715 | |||
716 | /** | ||
717 | * Signature of this hop over the path, of purpose | ||
718 | * #GNUNET_SIGNATURE_PURPOSE_TRANSPORT_DV_INITIATOR | ||
719 | */ | ||
720 | struct GNUNET_CRYPTO_EddsaSignature init_sig; | ||
721 | |||
722 | /** | ||
723 | * Identity of the peer that started this learning activity. | ||
724 | */ | ||
725 | struct GNUNET_PeerIdentity initiator; | ||
726 | |||
727 | /** | ||
728 | * Challenge value used by the initiator to re-identify the path. | ||
729 | */ | ||
730 | struct GNUNET_CRYPTO_ChallengeNonceP challenge; | ||
731 | |||
732 | /* Followed by @e num_hops `struct DVPathEntryP` values, | ||
733 | excluding the initiator of the DV trace; the last entry is the | ||
734 | current sender; the current peer must not be included. */ | ||
735 | }; | ||
736 | |||
737 | |||
738 | /** | ||
739 | * Outer layer of an encapsulated message send over multiple hops. | ||
740 | * The path given only includes the identities of the subsequent | ||
741 | * peers, i.e. it will be empty if we are the receiver. Each | ||
742 | * forwarding peer should scan the list from the end, and if it can, | ||
743 | * forward to the respective peer. The list should then be shortened | ||
744 | * by all the entries up to and including that peer. Each hop should | ||
745 | * also increment @e total_hops to allow the receiver to get a precise | ||
746 | * estimate on the number of hops the message travelled. Senders must | ||
747 | * provide a learned path that thus should work, but intermediaries | ||
748 | * know of a shortcut, they are allowed to send the message via that | ||
749 | * shortcut. | ||
750 | * | ||
751 | * If a peer finds itself still on the list, it must drop the message. | ||
752 | * | ||
753 | * The payload of the box can only be decrypted and verified by the | ||
754 | * ultimate receiver. Intermediaries do not learn the sender's | ||
755 | * identity and the path the message has taken. However, the first | ||
756 | * hop does learn the sender as @e total_hops would be zero and thus | ||
757 | * the predecessor must be the origin (so this is not really useful | ||
758 | * for anonymization). | ||
759 | */ | ||
760 | struct TransportDVBoxMessage | ||
761 | { | ||
762 | /** | ||
763 | * Type is #GNUNET_MESSAGE_TYPE_TRANSPORT_DV_BOX | ||
764 | */ | ||
765 | struct GNUNET_MessageHeader header; | ||
766 | |||
767 | /** | ||
768 | * Flag if the payload is a control message. In NBO. | ||
769 | */ | ||
770 | unsigned int without_fc; | ||
771 | |||
772 | /** | ||
773 | * Number of total hops this messages travelled. In NBO. | ||
774 | * @e origin sets this to zero, to be incremented at | ||
775 | * each hop. Peers should limit the @e total_hops value | ||
776 | * they accept from other peers. | ||
777 | */ | ||
778 | uint16_t total_hops GNUNET_PACKED; | ||
779 | |||
780 | /** | ||
781 | * Number of hops this messages includes. In NBO. Reduced by one | ||
782 | * or more at each hop. Peers should limit the @e num_hops value | ||
783 | * they accept from other peers. | ||
784 | */ | ||
785 | uint16_t num_hops GNUNET_PACKED; | ||
786 | |||
787 | /** | ||
788 | * Ephemeral key setup by the sender for target, used to encrypt the | ||
789 | * payload. Intermediaries must not change this value. | ||
790 | */ | ||
791 | struct GNUNET_CRYPTO_EcdhePublicKey ephemeral_key; | ||
792 | |||
793 | /** | ||
794 | * We use an IV here as the @e ephemeral_key is re-used for | ||
795 | * #EPHEMERAL_VALIDITY time to avoid re-signing it all the time. | ||
796 | * Intermediaries must not change this value. | ||
797 | */ | ||
798 | struct GNUNET_ShortHashCode iv; | ||
799 | |||
800 | /** | ||
801 | * HMAC over the ciphertext of the encrypted, variable-size body | ||
802 | * that follows. Verified via DH of target and @e ephemeral_key. | ||
803 | * Intermediaries must not change this value. | ||
804 | */ | ||
805 | struct GNUNET_HashCode hmac; | ||
806 | |||
807 | /** | ||
808 | * Size this msg had initially. This is needed to calculate the hmac at the target. | ||
809 | * The header size can not be used for that, because the box size is getting smaller at each hop. | ||
810 | * | ||
811 | */ | ||
812 | uint16_t orig_size GNUNET_PACKED; | ||
813 | |||
814 | /* Followed by @e num_hops `struct GNUNET_PeerIdentity` values; | ||
815 | excluding the @e origin and the current peer, the last must be | ||
816 | the ultimate target; if @e num_hops is zero, the receiver of this | ||
817 | message is the ultimate target. */ | ||
818 | |||
819 | /* Followed by encrypted, variable-size payload, which | ||
820 | must begin with a `struct TransportDVBoxPayloadP` */ | ||
821 | |||
822 | /* Followed by the actual message, which itself must not be a | ||
823 | a DV_LEARN or DV_BOX message! */ | ||
824 | }; | ||
825 | |||
826 | |||
827 | /** | ||
828 | * Message send to another peer to validate that it can indeed | ||
829 | * receive messages at a particular address. | ||
830 | */ | ||
831 | struct TransportValidationChallengeMessage | ||
832 | { | ||
833 | /** | ||
834 | * Type is #GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_VALIDATION_CHALLENGE | ||
835 | */ | ||
836 | struct GNUNET_MessageHeader header; | ||
837 | |||
838 | /** | ||
839 | * Always zero. | ||
840 | */ | ||
841 | uint32_t reserved GNUNET_PACKED; | ||
842 | |||
843 | /** | ||
844 | * Challenge to be signed by the receiving peer. | ||
845 | */ | ||
846 | struct GNUNET_CRYPTO_ChallengeNonceP challenge; | ||
847 | |||
848 | /** | ||
849 | * Timestamp of the sender, to be copied into the reply to allow | ||
850 | * sender to calculate RTT. Must be monotonically increasing! | ||
851 | */ | ||
852 | struct GNUNET_TIME_AbsoluteNBO sender_time; | ||
853 | }; | ||
854 | |||
855 | |||
856 | /** | ||
857 | * Message signed by a peer to confirm that it can indeed | ||
858 | * receive messages at a particular address. | ||
859 | */ | ||
860 | struct TransportValidationPS | ||
861 | { | ||
862 | /** | ||
863 | * Purpose is #GNUNET_SIGNATURE_PURPOSE_TRANSPORT_CHALLENGE | ||
864 | */ | ||
865 | struct GNUNET_CRYPTO_EccSignaturePurpose purpose; | ||
866 | |||
867 | /** | ||
868 | * How long does the sender believe the address on | ||
869 | * which the challenge was received to remain valid? | ||
870 | */ | ||
871 | struct GNUNET_TIME_RelativeNBO validity_duration; | ||
872 | |||
873 | /** | ||
874 | * Challenge signed by the receiving peer. | ||
875 | */ | ||
876 | struct GNUNET_CRYPTO_ChallengeNonceP challenge; | ||
877 | }; | ||
878 | |||
879 | |||
880 | /** | ||
881 | * Message send to a peer to respond to a | ||
882 | * #GNUNET_MESSAGE_TYPE_ADDRESS_VALIDATION_CHALLENGE | ||
883 | */ | ||
884 | struct TransportValidationResponseMessage | ||
885 | { | ||
886 | /** | ||
887 | * Type is #GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_VALIDATION_RESPONSE | ||
888 | */ | ||
889 | struct GNUNET_MessageHeader header; | ||
890 | |||
891 | /** | ||
892 | * Always zero. | ||
893 | */ | ||
894 | uint32_t reserved GNUNET_PACKED; | ||
895 | |||
896 | /** | ||
897 | * The peer's signature matching the | ||
898 | * #GNUNET_SIGNATURE_PURPOSE_TRANSPORT_CHALLENGE purpose. | ||
899 | */ | ||
900 | struct GNUNET_CRYPTO_EddsaSignature signature; | ||
901 | |||
902 | /** | ||
903 | * The challenge that was signed by the receiving peer. | ||
904 | */ | ||
905 | struct GNUNET_CRYPTO_ChallengeNonceP challenge; | ||
906 | |||
907 | /** | ||
908 | * Original timestamp of the sender (was @code{sender_time}), | ||
909 | * copied into the reply to allow sender to calculate RTT. | ||
910 | */ | ||
911 | struct GNUNET_TIME_AbsoluteNBO origin_time; | ||
912 | |||
913 | /** | ||
914 | * How long does the sender believe this address to remain | ||
915 | * valid? | ||
916 | */ | ||
917 | struct GNUNET_TIME_RelativeNBO validity_duration; | ||
918 | }; | ||
919 | |||
920 | struct TransportGlobalNattedAddress | ||
921 | { | ||
922 | /** | ||
923 | * Length of the address following the struct in NBO. | ||
924 | */ | ||
925 | unsigned int address_length; | ||
926 | |||
927 | /* Followed by @e address_length bytes of the address. */ | ||
928 | }; | ||
929 | |||
930 | /** | ||
931 | * Message for Transport-to-Transport Flow control. Specifies the size | ||
932 | * of the flow control window, including how much we believe to have | ||
933 | * consumed (at transmission time), how much we believe to be allowed | ||
934 | * (at transmission time), and how much the other peer is allowed to | ||
935 | * send to us, and how much data we already received from the other | ||
936 | * peer. | ||
937 | */ | ||
938 | struct TransportFlowControlMessage | ||
939 | { | ||
940 | /** | ||
941 | * Type is #GNUNET_MESSAGE_TYPE_TRANSPORT_FLOW_CONTROL | ||
942 | */ | ||
943 | struct GNUNET_MessageHeader header; | ||
944 | |||
945 | /** | ||
946 | * Sequence number of the flow control message. Incremented by one | ||
947 | * for each message. Starts at zero when a virtual link goes up. | ||
948 | * Used to detect one-sided connection drops. On wrap-around, the | ||
949 | * flow control counters will be reset as if the connection had | ||
950 | * dropped. | ||
951 | */ | ||
952 | uint32_t seq GNUNET_PACKED; | ||
953 | |||
954 | /** | ||
955 | * Flow control window size in bytes, in NBO. | ||
956 | * The receiver can send this many bytes at most. | ||
957 | */ | ||
958 | uint64_t inbound_window_size GNUNET_PACKED; | ||
959 | |||
960 | /** | ||
961 | * How many bytes has the sender sent that count for flow control at | ||
962 | * this time. Used to allow the receiver to estimate the packet | ||
963 | * loss rate. | ||
964 | */ | ||
965 | uint64_t outbound_sent GNUNET_PACKED; | ||
966 | |||
967 | /** | ||
968 | * Latest flow control window size we learned from the other peer, | ||
969 | * in bytes, in NBO. We are limited to sending at most this many | ||
970 | * bytes to the other peer. May help the other peer detect when | ||
971 | * flow control messages were lost and should thus be retransmitted. | ||
972 | * In particular, if the delta to @e outbound_sent is too small, | ||
973 | * this signals that we are stalled. | ||
974 | */ | ||
975 | uint64_t outbound_window_size GNUNET_PACKED; | ||
976 | |||
977 | /** | ||
978 | * Timestamp of the sender. Must be monotonically increasing! | ||
979 | * Used to enable receiver to ignore out-of-order packets in | ||
980 | * combination with the @e seq. Note that @e seq will go down | ||
981 | * (back to zero) whenever either side believes the connection | ||
982 | * was dropped, allowing the peers to detect that they need to | ||
983 | * reset the counters for the number of bytes sent! | ||
984 | */ | ||
985 | struct GNUNET_TIME_AbsoluteNBO sender_time; | ||
986 | |||
987 | |||
988 | /** | ||
989 | * Number of TransportGlobalNattedAddress following the struct. | ||
990 | */ | ||
991 | unsigned int number_of_addresses; | ||
992 | |||
993 | /** | ||
994 | * Size of all the addresses attached to all TransportGlobalNattedAddress. | ||
995 | */ | ||
996 | size_t size_of_addresses; | ||
997 | |||
998 | /* Followed by @e number_of_addresses struct TransportGlobalNattedAddress. */ | ||
999 | }; | ||
1000 | |||
1001 | GNUNET_NETWORK_STRUCT_END | ||
1002 | |||
1003 | |||
1004 | /** | ||
1005 | * What type of client is the `struct TransportClient` about? | ||
1006 | */ | ||
1007 | enum ClientType | ||
1008 | { | ||
1009 | /** | ||
1010 | * We do not know yet (client is fresh). | ||
1011 | */ | ||
1012 | CT_NONE = 0, | ||
1013 | |||
1014 | /** | ||
1015 | * Is the CORE service, we need to forward traffic to it. | ||
1016 | */ | ||
1017 | CT_CORE = 1, | ||
1018 | |||
1019 | /** | ||
1020 | * It is a monitor, forward monitor data. | ||
1021 | */ | ||
1022 | CT_MONITOR = 2, | ||
1023 | |||
1024 | /** | ||
1025 | * It is a communicator, use for communication. | ||
1026 | */ | ||
1027 | CT_COMMUNICATOR = 3, | ||
1028 | |||
1029 | /** | ||
1030 | * "Application" telling us where to connect (i.e. TOPOLOGY, DHT or CADET). | ||
1031 | */ | ||
1032 | CT_APPLICATION = 4 | ||
1033 | }; | ||
1034 | |||
1035 | |||
1036 | /** | ||
1037 | * Which transmission options are allowable for transmission? | ||
1038 | * Interpreted bit-wise! | ||
1039 | */ | ||
1040 | enum RouteMessageOptions | ||
1041 | { | ||
1042 | /** | ||
1043 | * Only confirmed, non-DV direct neighbours. | ||
1044 | */ | ||
1045 | RMO_NONE = 0, | ||
1046 | |||
1047 | /** | ||
1048 | * We are allowed to use DV routing for this @a hdr | ||
1049 | */ | ||
1050 | RMO_DV_ALLOWED = 1, | ||
1051 | |||
1052 | /** | ||
1053 | * We are allowed to use unconfirmed queues or DV routes for this message | ||
1054 | */ | ||
1055 | RMO_UNCONFIRMED_ALLOWED = 2, | ||
1056 | |||
1057 | /** | ||
1058 | * Reliable and unreliable, DV and non-DV are all acceptable. | ||
1059 | */ | ||
1060 | RMO_ANYTHING_GOES = (RMO_DV_ALLOWED | RMO_UNCONFIRMED_ALLOWED), | ||
1061 | |||
1062 | /** | ||
1063 | * If we have multiple choices, it is OK to send this message | ||
1064 | * over multiple channels at the same time to improve loss tolerance. | ||
1065 | * (We do at most 2 transmissions.) | ||
1066 | */ | ||
1067 | RMO_REDUNDANT = 4 | ||
1068 | }; | ||
1069 | |||
1070 | |||
1071 | /** | ||
1072 | * When did we launch this DV learning activity? | ||
1073 | */ | ||
1074 | struct LearnLaunchEntry | ||
1075 | { | ||
1076 | /** | ||
1077 | * Kept (also) in a DLL sorted by launch time. | ||
1078 | */ | ||
1079 | struct LearnLaunchEntry *prev; | ||
1080 | |||
1081 | /** | ||
1082 | * Kept (also) in a DLL sorted by launch time. | ||
1083 | */ | ||
1084 | struct LearnLaunchEntry *next; | ||
1085 | |||
1086 | /** | ||
1087 | * Challenge that uniquely identifies this activity. | ||
1088 | */ | ||
1089 | struct GNUNET_CRYPTO_ChallengeNonceP challenge; | ||
1090 | |||
1091 | /** | ||
1092 | * When did we transmit the DV learn message (used to calculate RTT) and | ||
1093 | * determine freshness of paths learned via this operation. | ||
1094 | */ | ||
1095 | struct GNUNET_TIME_Absolute launch_time; | ||
1096 | }; | ||
1097 | |||
1098 | |||
1099 | /** | ||
1100 | * Information we keep per #GOODPUT_AGING_SLOTS about historic | ||
1101 | * (or current) transmission performance. | ||
1102 | */ | ||
1103 | struct TransmissionHistoryEntry | ||
1104 | { | ||
1105 | /** | ||
1106 | * Number of bytes actually sent in the interval. | ||
1107 | */ | ||
1108 | uint64_t bytes_sent; | ||
1109 | |||
1110 | /** | ||
1111 | * Number of bytes received and acknowledged by the other peer in | ||
1112 | * the interval. | ||
1113 | */ | ||
1114 | uint64_t bytes_received; | ||
1115 | }; | ||
1116 | |||
1117 | |||
1118 | /** | ||
1119 | * Performance data for a transmission possibility. | ||
1120 | */ | ||
1121 | struct PerformanceData | ||
1122 | { | ||
1123 | /** | ||
1124 | * Weighted average for the RTT. | ||
1125 | */ | ||
1126 | struct GNUNET_TIME_Relative aged_rtt; | ||
1127 | |||
1128 | /** | ||
1129 | * Historic performance data, using a ring buffer of#GOODPUT_AGING_SLOTS | ||
1130 | * entries. | ||
1131 | */ | ||
1132 | struct TransmissionHistoryEntry the[GOODPUT_AGING_SLOTS]; | ||
1133 | |||
1134 | /** | ||
1135 | * What was the last age when we wrote to @e the? Used to clear | ||
1136 | * old entries when the age advances. | ||
1137 | */ | ||
1138 | unsigned int last_age; | ||
1139 | }; | ||
1140 | |||
1141 | |||
1142 | /** | ||
1143 | * Client connected to the transport service. | ||
1144 | */ | ||
1145 | struct TransportClient; | ||
1146 | |||
1147 | /** | ||
1148 | * A neighbour that at least one communicator is connected to. | ||
1149 | */ | ||
1150 | struct Neighbour; | ||
1151 | |||
1152 | /** | ||
1153 | * Entry in our #dv_routes table, representing a (set of) distance | ||
1154 | * vector routes to a particular peer. | ||
1155 | */ | ||
1156 | struct DistanceVector; | ||
1157 | |||
1158 | /** | ||
1159 | * A queue is a message queue provided by a communicator | ||
1160 | * via which we can reach a particular neighbour. | ||
1161 | */ | ||
1162 | struct Queue; | ||
1163 | |||
1164 | /** | ||
1165 | * Message awaiting transmission. See detailed comments below. | ||
1166 | */ | ||
1167 | struct PendingMessage; | ||
1168 | |||
1169 | /** | ||
1170 | * One possible hop towards a DV target. | ||
1171 | */ | ||
1172 | struct DistanceVectorHop; | ||
1173 | |||
1174 | /** | ||
1175 | * A virtual link is another reachable peer that is known to CORE. It | ||
1176 | * can be either a `struct Neighbour` with at least one confirmed | ||
1177 | * `struct Queue`, or a `struct DistanceVector` with at least one | ||
1178 | * confirmed `struct DistanceVectorHop`. With a virtual link we track | ||
1179 | * data that is per neighbour that is not specific to how the | ||
1180 | * connectivity is established. | ||
1181 | */ | ||
1182 | struct VirtualLink; | ||
1183 | |||
1184 | |||
1185 | /** | ||
1186 | * Context from #handle_incoming_msg(). Closure for many | ||
1187 | * message handlers below. | ||
1188 | */ | ||
1189 | struct CommunicatorMessageContext | ||
1190 | { | ||
1191 | /** | ||
1192 | * Kept in a DLL of `struct VirtualLink` if waiting for CORE | ||
1193 | * flow control to unchoke. | ||
1194 | */ | ||
1195 | struct CommunicatorMessageContext *next; | ||
1196 | |||
1197 | /** | ||
1198 | * Kept in a DLL of `struct VirtualLink` if waiting for CORE | ||
1199 | * flow control to unchoke. | ||
1200 | */ | ||
1201 | struct CommunicatorMessageContext *prev; | ||
1202 | |||
1203 | /** | ||
1204 | * Which communicator provided us with the message. | ||
1205 | */ | ||
1206 | struct TransportClient *tc; | ||
1207 | |||
1208 | /** | ||
1209 | * Additional information for flow control and about the sender. | ||
1210 | */ | ||
1211 | struct GNUNET_TRANSPORT_IncomingMessage im; | ||
1212 | |||
1213 | /** | ||
1214 | * The message to demultiplex. | ||
1215 | */ | ||
1216 | const struct GNUNET_MessageHeader *mh; | ||
1217 | |||
1218 | /** | ||
1219 | * Number of hops the message has travelled (if DV-routed). | ||
1220 | * FIXME: make use of this in ACK handling! | ||
1221 | */ | ||
1222 | uint16_t total_hops; | ||
1223 | |||
1224 | /** | ||
1225 | * Did we already call GNUNET_SERVICE_client_continue and send ACK to communicator? | ||
1226 | */ | ||
1227 | unsigned int continue_send; | ||
1228 | }; | ||
1229 | |||
1230 | |||
1231 | /** | ||
1232 | * Entry for the ring buffer caching messages send to core, when virtual link is avaliable. | ||
1233 | **/ | ||
1234 | struct RingBufferEntry | ||
1235 | { | ||
1236 | /** | ||
1237 | * Communicator context for this ring buffer entry. | ||
1238 | **/ | ||
1239 | struct CommunicatorMessageContext *cmc; | ||
1240 | |||
1241 | /** | ||
1242 | * The message in this entry. | ||
1243 | **/ | ||
1244 | struct GNUNET_MessageHeader *mh; | ||
1245 | }; | ||
1246 | |||
1247 | |||
1248 | /** | ||
1249 | * Closure for #core_env_sent_cb. | ||
1250 | */ | ||
1251 | struct CoreSentContext | ||
1252 | { | ||
1253 | /** | ||
1254 | * Kept in a DLL to clear @e vl in case @e vl is lost. | ||
1255 | */ | ||
1256 | struct CoreSentContext *next; | ||
1257 | |||
1258 | /** | ||
1259 | * Kept in a DLL to clear @e vl in case @e vl is lost. | ||
1260 | */ | ||
1261 | struct CoreSentContext *prev; | ||
1262 | |||
1263 | /** | ||
1264 | * Virtual link this is about. | ||
1265 | */ | ||
1266 | struct VirtualLink *vl; | ||
1267 | |||
1268 | /** | ||
1269 | * How big was the message. | ||
1270 | */ | ||
1271 | uint16_t size; | ||
1272 | |||
1273 | /** | ||
1274 | * By how much should we increment @e vl's | ||
1275 | * incoming_fc_window_size_used once we are done sending to CORE? | ||
1276 | * Use to ensure we do not increment twice if there is more than one | ||
1277 | * CORE client. | ||
1278 | */ | ||
1279 | uint16_t isize; | ||
1280 | }; | ||
1281 | |||
1282 | |||
1283 | /** | ||
1284 | * Information we keep for a message that we are reassembling. | ||
1285 | */ | ||
1286 | struct ReassemblyContext | ||
1287 | { | ||
1288 | /** | ||
1289 | * Original message ID for of the message that all the fragments | ||
1290 | * belong to. | ||
1291 | */ | ||
1292 | struct MessageUUIDP msg_uuid; | ||
1293 | |||
1294 | /** | ||
1295 | * Which neighbour is this context for? | ||
1296 | */ | ||
1297 | struct VirtualLink *virtual_link; | ||
1298 | |||
1299 | /** | ||
1300 | * Entry in the reassembly heap (sorted by expiration). | ||
1301 | */ | ||
1302 | struct GNUNET_CONTAINER_HeapNode *hn; | ||
1303 | |||
1304 | /** | ||
1305 | * Bitfield with @e msg_size bits representing the positions | ||
1306 | * where we have received fragments. When we receive a fragment, | ||
1307 | * we check the bits in @e bitfield before incrementing @e msg_missing. | ||
1308 | * | ||
1309 | * Allocated after the reassembled message. | ||
1310 | */ | ||
1311 | uint8_t *bitfield; | ||
1312 | |||
1313 | /** | ||
1314 | * At what time will we give up reassembly of this message? | ||
1315 | */ | ||
1316 | struct GNUNET_TIME_Absolute reassembly_timeout; | ||
1317 | |||
1318 | /** | ||
1319 | * Time we received the last fragment. @e avg_ack_delay must be | ||
1320 | * incremented by now - @e last_frag multiplied by @e num_acks. | ||
1321 | */ | ||
1322 | struct GNUNET_TIME_Absolute last_frag; | ||
1323 | |||
1324 | /** | ||
1325 | * How big is the message we are reassembling in total? | ||
1326 | */ | ||
1327 | uint16_t msg_size; | ||
1328 | |||
1329 | /** | ||
1330 | * How many bytes of the message are still missing? Defragmentation | ||
1331 | * is complete when @e msg_missing == 0. | ||
1332 | */ | ||
1333 | uint16_t msg_missing; | ||
1334 | |||
1335 | /* Followed by @e msg_size bytes of the (partially) defragmented original | ||
1336 | * message */ | ||
1337 | |||
1338 | /* Followed by @e bitfield data */ | ||
1339 | }; | ||
1340 | |||
1341 | |||
1342 | /** | ||
1343 | * A virtual link is another reachable peer that is known to CORE. It | ||
1344 | * can be either a `struct Neighbour` with at least one confirmed | ||
1345 | * `struct Queue`, or a `struct DistanceVector` with at least one | ||
1346 | * confirmed `struct DistanceVectorHop`. With a virtual link we track | ||
1347 | * data that is per neighbour that is not specific to how the | ||
1348 | * connectivity is established. | ||
1349 | */ | ||
1350 | struct VirtualLink | ||
1351 | { | ||
1352 | /** | ||
1353 | * Identity of the peer at the other end of the link. | ||
1354 | */ | ||
1355 | struct GNUNET_PeerIdentity target; | ||
1356 | |||
1357 | /** | ||
1358 | * Map with `struct ReassemblyContext` structs for fragments under | ||
1359 | * reassembly. May be NULL if we currently have no fragments from | ||
1360 | * this @e pid (lazy initialization). | ||
1361 | */ | ||
1362 | struct GNUNET_CONTAINER_MultiHashMap32 *reassembly_map; | ||
1363 | |||
1364 | /** | ||
1365 | * Heap with `struct ReassemblyContext` structs for fragments under | ||
1366 | * reassembly. May be NULL if we currently have no fragments from | ||
1367 | * this @e pid (lazy initialization). | ||
1368 | */ | ||
1369 | struct GNUNET_CONTAINER_Heap *reassembly_heap; | ||
1370 | |||
1371 | /** | ||
1372 | * Task to free old entries from the @e reassembly_heap and @e reassembly_map. | ||
1373 | */ | ||
1374 | struct GNUNET_SCHEDULER_Task *reassembly_timeout_task; | ||
1375 | |||
1376 | /** | ||
1377 | * Communicators blocked for receiving on @e target as we are waiting | ||
1378 | * on the @e core_recv_window to increase. | ||
1379 | */ | ||
1380 | struct CommunicatorMessageContext *cmc_head; | ||
1381 | |||
1382 | /** | ||
1383 | * Communicators blocked for receiving on @e target as we are waiting | ||
1384 | * on the @e core_recv_window to increase. | ||
1385 | */ | ||
1386 | struct CommunicatorMessageContext *cmc_tail; | ||
1387 | |||
1388 | /** | ||
1389 | * Head of list of messages pending for this VL. | ||
1390 | */ | ||
1391 | struct PendingMessage *pending_msg_head; | ||
1392 | |||
1393 | /** | ||
1394 | * Tail of list of messages pending for this VL. | ||
1395 | */ | ||
1396 | struct PendingMessage *pending_msg_tail; | ||
1397 | |||
1398 | /** | ||
1399 | * Kept in a DLL to clear @e vl in case @e vl is lost. | ||
1400 | */ | ||
1401 | struct CoreSentContext *csc_tail; | ||
1402 | |||
1403 | /** | ||
1404 | * Kept in a DLL to clear @e vl in case @e vl is lost. | ||
1405 | */ | ||
1406 | struct CoreSentContext *csc_head; | ||
1407 | |||
1408 | /** | ||
1409 | * Task scheduled to possibly notfiy core that this peer is no | ||
1410 | * longer counting as confirmed. Runs the #core_visibility_check(), | ||
1411 | * which checks that some DV-path or a queue exists that is still | ||
1412 | * considered confirmed. | ||
1413 | */ | ||
1414 | struct GNUNET_SCHEDULER_Task *visibility_task; | ||
1415 | |||
1416 | /** | ||
1417 | * Task scheduled to periodically retransmit FC messages (in | ||
1418 | * case one got lost). | ||
1419 | */ | ||
1420 | struct GNUNET_SCHEDULER_Task *fc_retransmit_task; | ||
1421 | |||
1422 | /** | ||
1423 | * Number of FC retransmissions for this running task. | ||
1424 | */ | ||
1425 | unsigned int fc_retransmit_count; | ||
1426 | |||
1427 | /** | ||
1428 | * Is this VirtualLink confirmed. | ||
1429 | * A unconfirmed VirtualLink might exist, if we got a FC from that target. | ||
1430 | */ | ||
1431 | unsigned int confirmed; | ||
1432 | |||
1433 | /** | ||
1434 | * Neighbour used by this virtual link, NULL if @e dv is used. | ||
1435 | */ | ||
1436 | struct Neighbour *n; | ||
1437 | |||
1438 | /** | ||
1439 | * Distance vector used by this virtual link, NULL if @e n is used. | ||
1440 | */ | ||
1441 | struct DistanceVector *dv; | ||
1442 | |||
1443 | /** | ||
1444 | * Sender timestamp of @e n_challenge, used to generate out-of-order | ||
1445 | * challenges (as sender's timestamps must be monotonically | ||
1446 | * increasing). FIXME: where do we need this? | ||
1447 | */ | ||
1448 | struct GNUNET_TIME_Absolute n_challenge_time; | ||
1449 | |||
1450 | /** | ||
1451 | * When did we last send a | ||
1452 | * #GNUNET_MESSAGE_TYPE_TRANSPORT_FLOW_CONTROL message? | ||
1453 | * Used to determine whether it is time to re-transmit the message. | ||
1454 | */ | ||
1455 | struct GNUNET_TIME_Absolute last_fc_transmission; | ||
1456 | |||
1457 | /** | ||
1458 | * Sender timestamp of the last | ||
1459 | * #GNUNET_MESSAGE_TYPE_TRANSPORT_FLOW_CONTROL message we have | ||
1460 | * received. Note that we do not persist this monotonic time as we | ||
1461 | * do not really have to worry about ancient flow control window | ||
1462 | * sizes after restarts. | ||
1463 | */ | ||
1464 | struct GNUNET_TIME_Absolute last_fc_timestamp; | ||
1465 | |||
1466 | /** | ||
1467 | * Expected RTT from the last FC transmission. (Zero if the last | ||
1468 | * attempt failed, but could theoretically be zero even on success.) | ||
1469 | */ | ||
1470 | struct GNUNET_TIME_Relative last_fc_rtt; | ||
1471 | |||
1472 | /** | ||
1473 | * Used to generate unique UUIDs for messages that are being | ||
1474 | * fragmented. | ||
1475 | */ | ||
1476 | uint64_t message_uuid_ctr; | ||
1477 | |||
1478 | /** | ||
1479 | * Memory allocated for this virtual link. Expresses how much RAM | ||
1480 | * we are willing to allocate to this virtual link. OPTIMIZE-ME: | ||
1481 | * Can be adapted to dedicate more RAM to links that need it, while | ||
1482 | * sticking to some overall RAM limit. For now, set to | ||
1483 | * #DEFAULT_WINDOW_SIZE. | ||
1484 | */ | ||
1485 | uint64_t available_fc_window_size; | ||
1486 | |||
1487 | /** | ||
1488 | * Memory actually used to buffer packets on this virtual link. | ||
1489 | * Expresses how much RAM we are currently using for virtual link. | ||
1490 | * Note that once CORE is done with a packet, we decrement the value | ||
1491 | * here. | ||
1492 | */ | ||
1493 | uint64_t incoming_fc_window_size_ram; | ||
1494 | |||
1495 | /** | ||
1496 | * Last flow control window size we provided to the other peer, in | ||
1497 | * bytes. We are allowing the other peer to send this | ||
1498 | * many bytes. | ||
1499 | */ | ||
1500 | uint64_t incoming_fc_window_size; | ||
1501 | |||
1502 | /** | ||
1503 | * How much of the window did the other peer successfully use (and | ||
1504 | * we already passed it on to CORE)? Must be below @e | ||
1505 | * incoming_fc_window_size. We should effectively signal the | ||
1506 | * other peer that the window is this much bigger at the next | ||
1507 | * opportunity / challenge. | ||
1508 | */ | ||
1509 | uint64_t incoming_fc_window_size_used; | ||
1510 | |||
1511 | /** | ||
1512 | * What is our current estimate on the message loss rate for the sender? | ||
1513 | * Based on the difference between how much the sender sent according | ||
1514 | * to the last #GNUNET_MESSAGE_TYPE_TRANSPORT_FLOW_CONTROL message | ||
1515 | * (@e outbound_sent field) and how much we actually received at that | ||
1516 | * time (@e incoming_fc_window_size_used). This delta is then | ||
1517 | * added onto the @e incoming_fc_window_size when determining the | ||
1518 | * @e outbound_window_size we send to the other peer. Initially zero. | ||
1519 | * May be negative if we (due to out-of-order delivery) actually received | ||
1520 | * more than the sender claims to have sent in its last FC message. | ||
1521 | */ | ||
1522 | int64_t incoming_fc_window_size_loss; | ||
1523 | |||
1524 | /** | ||
1525 | * Our current flow control window size in bytes. We | ||
1526 | * are allowed to transmit this many bytes to @a n. | ||
1527 | */ | ||
1528 | uint64_t outbound_fc_window_size; | ||
1529 | |||
1530 | /** | ||
1531 | * How much of our current flow control window size have we | ||
1532 | * used (in bytes). Must be below | ||
1533 | * @e outbound_fc_window_size. | ||
1534 | */ | ||
1535 | uint64_t outbound_fc_window_size_used; | ||
1536 | |||
1537 | /** | ||
1538 | * What is the most recent FC window the other peer sent us | ||
1539 | * in `outbound_window_size`? This is basically the window | ||
1540 | * size value the other peer has definitively received from | ||
1541 | * us. If it matches @e incoming_fc_window_size, we should | ||
1542 | * not send a FC message to increase the FC window. However, | ||
1543 | * we may still send an FC message to notify the other peer | ||
1544 | * that we received the other peer's FC message. | ||
1545 | */ | ||
1546 | uint64_t last_outbound_window_size_received; | ||
1547 | |||
1548 | /** | ||
1549 | * Generator for the sequence numbers of | ||
1550 | * #GNUNET_MESSAGE_TYPE_TRANSPORT_FLOW_CONTROL messages we send. | ||
1551 | */ | ||
1552 | uint32_t fc_seq_gen; | ||
1553 | |||
1554 | /** | ||
1555 | * Last sequence number of a | ||
1556 | * #GNUNET_MESSAGE_TYPE_TRANSPORT_FLOW_CONTROL message we have | ||
1557 | * received. | ||
1558 | */ | ||
1559 | uint32_t last_fc_seq; | ||
1560 | |||
1561 | /** | ||
1562 | * How many more messages can we send to CORE before we exhaust | ||
1563 | * the receive window of CORE for this peer? If this hits zero, | ||
1564 | * we must tell communicators to stop providing us more messages | ||
1565 | * for this peer. In fact, the window can go negative as we | ||
1566 | * have multiple communicators, so per communicator we can go | ||
1567 | * down by one into the negative range. Furthermore, we count | ||
1568 | * delivery per CORE client, so if we had multiple cores, that | ||
1569 | * might also cause a negative window size here (as one message | ||
1570 | * would decrement the window by one per CORE client). | ||
1571 | */ | ||
1572 | int core_recv_window; | ||
1573 | }; | ||
1574 | |||
1575 | |||
1576 | /** | ||
1577 | * Data structure kept when we are waiting for an acknowledgement. | ||
1578 | */ | ||
1579 | struct PendingAcknowledgement | ||
1580 | { | ||
1581 | /** | ||
1582 | * If @e pm is non-NULL, this is the DLL in which this acknowledgement | ||
1583 | * is kept in relation to its pending message. | ||
1584 | */ | ||
1585 | struct PendingAcknowledgement *next_pm; | ||
1586 | |||
1587 | /** | ||
1588 | * If @e pm is non-NULL, this is the DLL in which this acknowledgement | ||
1589 | * is kept in relation to its pending message. | ||
1590 | */ | ||
1591 | struct PendingAcknowledgement *prev_pm; | ||
1592 | |||
1593 | /** | ||
1594 | * If @e queue is non-NULL, this is the DLL in which this acknowledgement | ||
1595 | * is kept in relation to the queue that was used to transmit the | ||
1596 | * @a pm. | ||
1597 | */ | ||
1598 | struct PendingAcknowledgement *next_queue; | ||
1599 | |||
1600 | /** | ||
1601 | * If @e queue is non-NULL, this is the DLL in which this acknowledgement | ||
1602 | * is kept in relation to the queue that was used to transmit the | ||
1603 | * @a pm. | ||
1604 | */ | ||
1605 | struct PendingAcknowledgement *prev_queue; | ||
1606 | |||
1607 | /** | ||
1608 | * If @e dvh is non-NULL, this is the DLL in which this acknowledgement | ||
1609 | * is kept in relation to the DVH that was used to transmit the | ||
1610 | * @a pm. | ||
1611 | */ | ||
1612 | struct PendingAcknowledgement *next_dvh; | ||
1613 | |||
1614 | /** | ||
1615 | * If @e dvh is non-NULL, this is the DLL in which this acknowledgement | ||
1616 | * is kept in relation to the DVH that was used to transmit the | ||
1617 | * @a pm. | ||
1618 | */ | ||
1619 | struct PendingAcknowledgement *prev_dvh; | ||
1620 | |||
1621 | /** | ||
1622 | * Pointers for the DLL of all pending acknowledgements. | ||
1623 | * This list is sorted by @e transmission time. If the list gets too | ||
1624 | * long, the oldest entries are discarded. | ||
1625 | */ | ||
1626 | struct PendingAcknowledgement *next_pa; | ||
1627 | |||
1628 | /** | ||
1629 | * Pointers for the DLL of all pending acknowledgements. | ||
1630 | * This list is sorted by @e transmission time. If the list gets too | ||
1631 | * long, the oldest entries are discarded. | ||
1632 | */ | ||
1633 | struct PendingAcknowledgement *prev_pa; | ||
1634 | |||
1635 | /** | ||
1636 | * Unique identifier for this transmission operation. | ||
1637 | */ | ||
1638 | struct AcknowledgementUUIDP ack_uuid; | ||
1639 | |||
1640 | /** | ||
1641 | * Message that was transmitted, may be NULL if the message was ACKed | ||
1642 | * via another channel. | ||
1643 | */ | ||
1644 | struct PendingMessage *pm; | ||
1645 | |||
1646 | /** | ||
1647 | * Distance vector path chosen for this transmission, NULL if transmission | ||
1648 | * was to a direct neighbour OR if the path was forgotten in the meantime. | ||
1649 | */ | ||
1650 | struct DistanceVectorHop *dvh; | ||
1651 | |||
1652 | /** | ||
1653 | * Queue used for transmission, NULL if the queue has been destroyed | ||
1654 | * (which may happen before we get an acknowledgement). | ||
1655 | */ | ||
1656 | struct Queue *queue; | ||
1657 | |||
1658 | /** | ||
1659 | * Time of the transmission, for RTT calculation. | ||
1660 | */ | ||
1661 | struct GNUNET_TIME_Absolute transmission_time; | ||
1662 | |||
1663 | /** | ||
1664 | * Number of bytes of the original message (to calculate bandwidth). | ||
1665 | */ | ||
1666 | uint16_t message_size; | ||
1667 | |||
1668 | /** | ||
1669 | * How often the PendingMessage was send via the Queue of this PendingAcknowledgement. | ||
1670 | */ | ||
1671 | unsigned int num_send; | ||
1672 | }; | ||
1673 | |||
1674 | |||
1675 | /** | ||
1676 | * One possible hop towards a DV target. | ||
1677 | */ | ||
1678 | struct DistanceVectorHop | ||
1679 | { | ||
1680 | /** | ||
1681 | * Kept in a MDLL, sorted by @e timeout. | ||
1682 | */ | ||
1683 | struct DistanceVectorHop *next_dv; | ||
1684 | |||
1685 | /** | ||
1686 | * Kept in a MDLL, sorted by @e timeout. | ||
1687 | */ | ||
1688 | struct DistanceVectorHop *prev_dv; | ||
1689 | |||
1690 | /** | ||
1691 | * Kept in a MDLL. | ||
1692 | */ | ||
1693 | struct DistanceVectorHop *next_neighbour; | ||
1694 | |||
1695 | /** | ||
1696 | * Kept in a MDLL. | ||
1697 | */ | ||
1698 | struct DistanceVectorHop *prev_neighbour; | ||
1699 | |||
1700 | /** | ||
1701 | * Head of DLL of PAs that used our @a path. | ||
1702 | */ | ||
1703 | struct PendingAcknowledgement *pa_head; | ||
1704 | |||
1705 | /** | ||
1706 | * Tail of DLL of PAs that used our @a path. | ||
1707 | */ | ||
1708 | struct PendingAcknowledgement *pa_tail; | ||
1709 | |||
1710 | /** | ||
1711 | * What would be the next hop to @e target? | ||
1712 | */ | ||
1713 | struct Neighbour *next_hop; | ||
1714 | |||
1715 | /** | ||
1716 | * Distance vector entry this hop belongs with. | ||
1717 | */ | ||
1718 | struct DistanceVector *dv; | ||
1719 | |||
1720 | /** | ||
1721 | * Array of @e distance hops to the target, excluding @e next_hop. | ||
1722 | * NULL if the entire path is us to @e next_hop to `target`. Allocated | ||
1723 | * at the end of this struct. Excludes the target itself! | ||
1724 | */ | ||
1725 | const struct GNUNET_PeerIdentity *path; | ||
1726 | |||
1727 | /** | ||
1728 | * At what time do we forget about this path unless we see it again | ||
1729 | * while learning? | ||
1730 | */ | ||
1731 | struct GNUNET_TIME_Absolute timeout; | ||
1732 | |||
1733 | /** | ||
1734 | * For how long is the validation of this path considered | ||
1735 | * valid? | ||
1736 | * Set to ZERO if the path is learned by snooping on DV learn messages | ||
1737 | * initiated by other peers, and to the time at which we generated the | ||
1738 | * challenge for DV learn operations this peer initiated. | ||
1739 | */ | ||
1740 | struct GNUNET_TIME_Absolute path_valid_until; | ||
1741 | |||
1742 | /** | ||
1743 | * Performance data for this transmission possibility. | ||
1744 | */ | ||
1745 | struct PerformanceData pd; | ||
1746 | |||
1747 | /** | ||
1748 | * Number of hops in total to the `target` (excluding @e next_hop and `target` | ||
1749 | * itself). Thus 0 still means a distance of 2 hops (to @e next_hop and then | ||
1750 | * to `target`). | ||
1751 | */ | ||
1752 | unsigned int distance; | ||
1753 | }; | ||
1754 | |||
1755 | |||
1756 | /** | ||
1757 | * Entry in our #dv_routes table, representing a (set of) distance | ||
1758 | * vector routes to a particular peer. | ||
1759 | */ | ||
1760 | struct DistanceVector | ||
1761 | { | ||
1762 | /** | ||
1763 | * To which peer is this a route? | ||
1764 | */ | ||
1765 | struct GNUNET_PeerIdentity target; | ||
1766 | |||
1767 | /** | ||
1768 | * Known paths to @e target. | ||
1769 | */ | ||
1770 | struct DistanceVectorHop *dv_head; | ||
1771 | |||
1772 | /** | ||
1773 | * Known paths to @e target. | ||
1774 | */ | ||
1775 | struct DistanceVectorHop *dv_tail; | ||
1776 | |||
1777 | /** | ||
1778 | * Task scheduled to purge expired paths from @e dv_head MDLL. | ||
1779 | */ | ||
1780 | struct GNUNET_SCHEDULER_Task *timeout_task; | ||
1781 | |||
1782 | /** | ||
1783 | * Do we have a confirmed working queue and are thus visible to | ||
1784 | * CORE? If so, this is the virtual link, otherwise NULL. | ||
1785 | */ | ||
1786 | struct VirtualLink *vl; | ||
1787 | |||
1788 | /** | ||
1789 | * Signature affirming @e ephemeral_key of type | ||
1790 | * #GNUNET_SIGNATURE_PURPOSE_TRANSPORT_EPHEMERAL | ||
1791 | */ | ||
1792 | struct GNUNET_CRYPTO_EddsaSignature sender_sig; | ||
1793 | |||
1794 | /** | ||
1795 | * How long is @e sender_sig valid | ||
1796 | */ | ||
1797 | struct GNUNET_TIME_Absolute ephemeral_validity; | ||
1798 | |||
1799 | /** | ||
1800 | * What time was @e sender_sig created | ||
1801 | */ | ||
1802 | struct GNUNET_TIME_Absolute monotime; | ||
1803 | |||
1804 | /** | ||
1805 | * Our ephemeral key. | ||
1806 | */ | ||
1807 | struct GNUNET_CRYPTO_EcdhePublicKey ephemeral_key; | ||
1808 | |||
1809 | /** | ||
1810 | * Master secret for the setup of the Key material for the backchannel. | ||
1811 | */ | ||
1812 | struct GNUNET_HashCode *km; | ||
1813 | }; | ||
1814 | |||
1815 | |||
1816 | /** | ||
1817 | * Entry identifying transmission in one of our `struct | ||
1818 | * Queue` which still awaits an ACK. This is used to | ||
1819 | * ensure we do not overwhelm a communicator and limit the number of | ||
1820 | * messages outstanding per communicator (say in case communicator is | ||
1821 | * CPU bound) and per queue (in case bandwidth allocation exceeds | ||
1822 | * what the communicator can actually provide towards a particular | ||
1823 | * peer/target). | ||
1824 | */ | ||
1825 | struct QueueEntry | ||
1826 | { | ||
1827 | /** | ||
1828 | * Kept as a DLL. | ||
1829 | */ | ||
1830 | struct QueueEntry *next; | ||
1831 | |||
1832 | /** | ||
1833 | * Kept as a DLL. | ||
1834 | */ | ||
1835 | struct QueueEntry *prev; | ||
1836 | |||
1837 | /** | ||
1838 | * Queue this entry is queued with. | ||
1839 | */ | ||
1840 | struct Queue *queue; | ||
1841 | |||
1842 | /** | ||
1843 | * Pending message this entry is for, or NULL for none. | ||
1844 | */ | ||
1845 | struct PendingMessage *pm; | ||
1846 | |||
1847 | /** | ||
1848 | * Message ID used for this message with the queue used for transmission. | ||
1849 | */ | ||
1850 | uint64_t mid; | ||
1851 | |||
1852 | /** | ||
1853 | * Timestamp this QueueEntry was created. | ||
1854 | */ | ||
1855 | struct GNUNET_TIME_Absolute creation_timestamp; | ||
1856 | }; | ||
1857 | |||
1858 | |||
1859 | /** | ||
1860 | * A queue is a message queue provided by a communicator | ||
1861 | * via which we can reach a particular neighbour. | ||
1862 | */ | ||
1863 | struct Queue | ||
1864 | { | ||
1865 | /** | ||
1866 | * Kept in a MDLL. | ||
1867 | */ | ||
1868 | struct Queue *next_neighbour; | ||
1869 | |||
1870 | /** | ||
1871 | * Kept in a MDLL. | ||
1872 | */ | ||
1873 | struct Queue *prev_neighbour; | ||
1874 | |||
1875 | /** | ||
1876 | * Kept in a MDLL. | ||
1877 | */ | ||
1878 | struct Queue *prev_client; | ||
1879 | |||
1880 | /** | ||
1881 | * Kept in a MDLL. | ||
1882 | */ | ||
1883 | struct Queue *next_client; | ||
1884 | |||
1885 | /** | ||
1886 | * Head of DLL of PAs that used this queue. | ||
1887 | */ | ||
1888 | struct PendingAcknowledgement *pa_head; | ||
1889 | |||
1890 | /** | ||
1891 | * Tail of DLL of PAs that used this queue. | ||
1892 | */ | ||
1893 | struct PendingAcknowledgement *pa_tail; | ||
1894 | |||
1895 | /** | ||
1896 | * Head of DLL of unacked transmission requests. | ||
1897 | */ | ||
1898 | struct QueueEntry *queue_head; | ||
1899 | |||
1900 | /** | ||
1901 | * End of DLL of unacked transmission requests. | ||
1902 | */ | ||
1903 | struct QueueEntry *queue_tail; | ||
1904 | |||
1905 | /** | ||
1906 | * Which neighbour is this queue for? | ||
1907 | */ | ||
1908 | struct Neighbour *neighbour; | ||
1909 | |||
1910 | /** | ||
1911 | * Which communicator offers this queue? | ||
1912 | */ | ||
1913 | struct TransportClient *tc; | ||
1914 | |||
1915 | /** | ||
1916 | * Address served by the queue. | ||
1917 | */ | ||
1918 | const char *address; | ||
1919 | |||
1920 | /** | ||
1921 | * Is this queue of unlimited length. | ||
1922 | */ | ||
1923 | unsigned int unlimited_length; | ||
1924 | |||
1925 | /** | ||
1926 | * Task scheduled for the time when this queue can (likely) transmit the | ||
1927 | * next message. | ||
1928 | */ | ||
1929 | struct GNUNET_SCHEDULER_Task *transmit_task; | ||
1930 | |||
1931 | /** | ||
1932 | * How long do *we* consider this @e address to be valid? In the past or | ||
1933 | * zero if we have not yet validated it. Can be updated based on | ||
1934 | * challenge-response validations (via address validation logic), or when we | ||
1935 | * receive ACKs that we can definitively map to transmissions via this | ||
1936 | * queue. | ||
1937 | */ | ||
1938 | struct GNUNET_TIME_Absolute validated_until; | ||
1939 | |||
1940 | /** | ||
1941 | * Performance data for this queue. | ||
1942 | */ | ||
1943 | struct PerformanceData pd; | ||
1944 | |||
1945 | /** | ||
1946 | * Handle for an operation to iterate through all hellos to compare the hello | ||
1947 | * addresses with @e address which might be a natted one. | ||
1948 | */ | ||
1949 | struct GNUNET_PEERSTORE_Monitor *mo; | ||
1950 | |||
1951 | /** | ||
1952 | * Message ID generator for transmissions on this queue to the | ||
1953 | * communicator. | ||
1954 | */ | ||
1955 | uint64_t mid_gen; | ||
1956 | |||
1957 | /** | ||
1958 | * Unique identifier of this queue with the communicator. | ||
1959 | */ | ||
1960 | uint32_t qid; | ||
1961 | |||
1962 | /** | ||
1963 | * Maximum transmission unit supported by this queue. | ||
1964 | */ | ||
1965 | uint32_t mtu; | ||
1966 | |||
1967 | /** | ||
1968 | * Messages pending. | ||
1969 | */ | ||
1970 | uint32_t num_msg_pending; | ||
1971 | |||
1972 | /** | ||
1973 | * Bytes pending. | ||
1974 | */ | ||
1975 | uint32_t num_bytes_pending; | ||
1976 | |||
1977 | /** | ||
1978 | * Length of the DLL starting at @e queue_head. | ||
1979 | */ | ||
1980 | unsigned int queue_length; | ||
1981 | |||
1982 | /** | ||
1983 | * Capacity of the queue. | ||
1984 | */ | ||
1985 | uint64_t q_capacity; | ||
1986 | |||
1987 | /** | ||
1988 | * Queue priority | ||
1989 | */ | ||
1990 | uint32_t priority; | ||
1991 | |||
1992 | /** | ||
1993 | * Network type offered by this queue. | ||
1994 | */ | ||
1995 | enum GNUNET_NetworkType nt; | ||
1996 | |||
1997 | /** | ||
1998 | * Connection status for this queue. | ||
1999 | */ | ||
2000 | enum GNUNET_TRANSPORT_ConnectionStatus cs; | ||
2001 | |||
2002 | /** | ||
2003 | * Set to #GNUNET_YES if this queue is idle waiting for some | ||
2004 | * virtual link to give it a pending message. | ||
2005 | */ | ||
2006 | int idle; | ||
2007 | |||
2008 | /** | ||
2009 | * Set to GNUNET_yes, if this queues address is not a global natted one. | ||
2010 | */ | ||
2011 | enum GNUNET_GenericReturnValue is_global_natted; | ||
2012 | }; | ||
2013 | |||
2014 | |||
2015 | /** | ||
2016 | * A neighbour that at least one communicator is connected to. | ||
2017 | */ | ||
2018 | struct Neighbour | ||
2019 | { | ||
2020 | /** | ||
2021 | * Which peer is this about? | ||
2022 | */ | ||
2023 | struct GNUNET_PeerIdentity pid; | ||
2024 | |||
2025 | /** | ||
2026 | * Head of MDLL of DV hops that have this neighbour as next hop. Must be | ||
2027 | * purged if this neighbour goes down. | ||
2028 | */ | ||
2029 | struct DistanceVectorHop *dv_head; | ||
2030 | |||
2031 | /** | ||
2032 | * Tail of MDLL of DV hops that have this neighbour as next hop. Must be | ||
2033 | * purged if this neighbour goes down. | ||
2034 | */ | ||
2035 | struct DistanceVectorHop *dv_tail; | ||
2036 | |||
2037 | /** | ||
2038 | * Head of DLL of queues to this peer. | ||
2039 | */ | ||
2040 | struct Queue *queue_head; | ||
2041 | |||
2042 | /** | ||
2043 | * Tail of DLL of queues to this peer. | ||
2044 | */ | ||
2045 | struct Queue *queue_tail; | ||
2046 | |||
2047 | /** | ||
2048 | * Handle for an operation to fetch @e last_dv_learn_monotime information from | ||
2049 | * the PEERSTORE, or NULL. | ||
2050 | */ | ||
2051 | struct GNUNET_PEERSTORE_IterateContext *get; | ||
2052 | |||
2053 | /** | ||
2054 | * Handle to a PEERSTORE store operation to store this @e pid's @e | ||
2055 | * @e last_dv_learn_monotime. NULL if no PEERSTORE operation is pending. | ||
2056 | */ | ||
2057 | struct GNUNET_PEERSTORE_StoreContext *sc; | ||
2058 | |||
2059 | /** | ||
2060 | * Do we have a confirmed working queue and are thus visible to | ||
2061 | * CORE? If so, this is the virtual link, otherwise NULL. | ||
2062 | */ | ||
2063 | struct VirtualLink *vl; | ||
2064 | |||
2065 | /** | ||
2066 | * Latest DVLearn monotonic time seen from this peer. Initialized only | ||
2067 | * if @e dl_monotime_available is #GNUNET_YES. | ||
2068 | */ | ||
2069 | struct GNUNET_TIME_Absolute last_dv_learn_monotime; | ||
2070 | |||
2071 | /** | ||
2072 | * Do we have the latest value for @e last_dv_learn_monotime from | ||
2073 | * PEERSTORE yet, or are we still waiting for a reply of PEERSTORE? | ||
2074 | */ | ||
2075 | int dv_monotime_available; | ||
2076 | |||
2077 | /** | ||
2078 | * Map of struct TransportGlobalNattedAddress for this neighbour. | ||
2079 | */ | ||
2080 | struct GNUNET_CONTAINER_MultiPeerMap *natted_addresses; | ||
2081 | |||
2082 | /** | ||
2083 | * Number of global natted addresses for this neighbour. | ||
2084 | */ | ||
2085 | unsigned int number_of_addresses; | ||
2086 | |||
2087 | /** | ||
2088 | * Size of all global natted addresses for this neighbour. | ||
2089 | */ | ||
2090 | size_t size_of_global_addresses; | ||
2091 | |||
2092 | /** | ||
2093 | * A queue of this neighbour has a global natted address. | ||
2094 | */ | ||
2095 | enum GNUNET_GenericReturnValue is_global_natted; | ||
2096 | }; | ||
2097 | |||
2098 | |||
2099 | /** | ||
2100 | * Another peer attempted to talk to us, we should try to establish | ||
2101 | * a connection in the other direction. | ||
2102 | */ | ||
2103 | struct IncomingRequest | ||
2104 | { | ||
2105 | /** | ||
2106 | * Kept in a DLL. | ||
2107 | */ | ||
2108 | struct IncomingRequest *next; | ||
2109 | |||
2110 | /** | ||
2111 | * Kept in a DLL. | ||
2112 | */ | ||
2113 | struct IncomingRequest *prev; | ||
2114 | |||
2115 | /** | ||
2116 | * Notify context for new HELLOs. | ||
2117 | */ | ||
2118 | struct GNUNET_PEERSTORE_Monitor *nc; | ||
2119 | |||
2120 | /** | ||
2121 | * Which peer is this about? | ||
2122 | */ | ||
2123 | struct GNUNET_PeerIdentity pid; | ||
2124 | }; | ||
2125 | |||
2126 | |||
2127 | /** | ||
2128 | * A peer that an application (client) would like us to talk to directly. | ||
2129 | */ | ||
2130 | struct PeerRequest | ||
2131 | { | ||
2132 | /** | ||
2133 | * Which peer is this about? | ||
2134 | */ | ||
2135 | struct GNUNET_PeerIdentity pid; | ||
2136 | |||
2137 | /** | ||
2138 | * Client responsible for the request. | ||
2139 | */ | ||
2140 | struct TransportClient *tc; | ||
2141 | |||
2142 | /** | ||
2143 | * Notify context for new HELLOs. | ||
2144 | */ | ||
2145 | struct GNUNET_PEERSTORE_Monitor *nc; | ||
2146 | |||
2147 | /** | ||
2148 | * What kind of performance preference does this @e tc have? | ||
2149 | * | ||
2150 | * TODO: use this! | ||
2151 | */ | ||
2152 | enum GNUNET_MQ_PriorityPreferences pk; | ||
2153 | |||
2154 | /** | ||
2155 | * How much bandwidth would this @e tc like to see? | ||
2156 | */ | ||
2157 | struct GNUNET_BANDWIDTH_Value32NBO bw; | ||
2158 | }; | ||
2159 | |||
2160 | |||
2161 | /** | ||
2162 | * Types of different pending messages. | ||
2163 | */ | ||
2164 | enum PendingMessageType | ||
2165 | { | ||
2166 | /** | ||
2167 | * Ordinary message received from the CORE service. | ||
2168 | */ | ||
2169 | PMT_CORE = 0, | ||
2170 | |||
2171 | /** | ||
2172 | * Fragment box. | ||
2173 | */ | ||
2174 | PMT_FRAGMENT_BOX = 1, | ||
2175 | |||
2176 | /** | ||
2177 | * Reliability box. | ||
2178 | */ | ||
2179 | PMT_RELIABILITY_BOX = 2, | ||
2180 | |||
2181 | /** | ||
2182 | * Pending message created during #forward_dv_box(). | ||
2183 | */ | ||
2184 | PMT_DV_BOX = 3 | ||
2185 | }; | ||
2186 | |||
2187 | |||
2188 | /** | ||
2189 | * Transmission request that is awaiting delivery. The original | ||
2190 | * transmission requests from CORE may be too big for some queues. | ||
2191 | * In this case, a *tree* of fragments is created. At each | ||
2192 | * level of the tree, fragments are kept in a DLL ordered by which | ||
2193 | * fragment should be sent next (at the head). The tree is searched | ||
2194 | * top-down, with the original message at the root. | ||
2195 | * | ||
2196 | * To select a node for transmission, first it is checked if the | ||
2197 | * current node's message fits with the MTU. If it does not, we | ||
2198 | * either calculate the next fragment (based on @e frag_off) from the | ||
2199 | * current node, or, if all fragments have already been created, | ||
2200 | * descend to the @e head_frag. Even though the node was already | ||
2201 | * fragmented, the fragment may be too big if the fragment was | ||
2202 | * generated for a queue with a larger MTU. In this case, the node | ||
2203 | * may be fragmented again, thus creating a tree. | ||
2204 | * | ||
2205 | * When acknowledgements for fragments are received, the tree | ||
2206 | * must be pruned, removing those parts that were already | ||
2207 | * acknowledged. When fragments are sent over a reliable | ||
2208 | * channel, they can be immediately removed. | ||
2209 | * | ||
2210 | * If a message is ever fragmented, then the original "full" message | ||
2211 | * is never again transmitted (even if it fits below the MTU), and | ||
2212 | * only (remaining) fragments are sent. | ||
2213 | */ | ||
2214 | struct PendingMessage | ||
2215 | { | ||
2216 | /** | ||
2217 | * Kept in a MDLL of messages for this @a vl. | ||
2218 | */ | ||
2219 | struct PendingMessage *next_vl; | ||
2220 | |||
2221 | /** | ||
2222 | * Kept in a MDLL of messages for this @a vl. | ||
2223 | */ | ||
2224 | struct PendingMessage *prev_vl; | ||
2225 | |||
2226 | /** | ||
2227 | * Kept in a MDLL of messages from this @a client (if @e pmt is #PMT_CORE) | ||
2228 | */ | ||
2229 | struct PendingMessage *next_client; | ||
2230 | |||
2231 | /** | ||
2232 | * Kept in a MDLL of messages from this @a client (if @e pmt is #PMT_CORE) | ||
2233 | */ | ||
2234 | struct PendingMessage *prev_client; | ||
2235 | |||
2236 | /** | ||
2237 | * Kept in a MDLL of messages from this @a cpm (if @e pmt is | ||
2238 | * #PMT_FRAGMENT_BOx) | ||
2239 | */ | ||
2240 | struct PendingMessage *next_frag; | ||
2241 | |||
2242 | /** | ||
2243 | * Kept in a MDLL of messages from this @a cpm (if @e pmt is | ||
2244 | * #PMT_FRAGMENT_BOX) | ||
2245 | */ | ||
2246 | struct PendingMessage *prev_frag; | ||
2247 | |||
2248 | /** | ||
2249 | * Head of DLL of PAs for this pending message. | ||
2250 | */ | ||
2251 | struct PendingAcknowledgement *pa_head; | ||
2252 | |||
2253 | /** | ||
2254 | * Tail of DLL of PAs for this pending message. | ||
2255 | */ | ||
2256 | struct PendingAcknowledgement *pa_tail; | ||
2257 | |||
2258 | /** | ||
2259 | * This message, reliability *or* DV-boxed. Only possibly available | ||
2260 | * if @e pmt is #PMT_CORE. | ||
2261 | */ | ||
2262 | struct PendingMessage *bpm; | ||
2263 | |||
2264 | /** | ||
2265 | * Target of the request (always the ultimate destination!). | ||
2266 | * Might be NULL in case of a forwarded DVBox we have no validated neighbour. | ||
2267 | */ | ||
2268 | struct VirtualLink *vl; | ||
2269 | |||
2270 | /** | ||
2271 | * In case of a not validated neighbour, we store the target peer. | ||
2272 | **/ | ||
2273 | struct GNUNET_PeerIdentity target; | ||
2274 | |||
2275 | /** | ||
2276 | * Set to non-NULL value if this message is currently being given to a | ||
2277 | * communicator and we are awaiting that communicator's acknowledgement. | ||
2278 | * Note that we must not retransmit a pending message while we're still | ||
2279 | * in the process of giving it to a communicator. If a pending message | ||
2280 | * is free'd while this entry is non-NULL, the @e qe reference to us | ||
2281 | * should simply be set to NULL. | ||
2282 | */ | ||
2283 | struct QueueEntry *qe; | ||
2284 | |||
2285 | /** | ||
2286 | * Client that issued the transmission request, if @e pmt is #PMT_CORE. | ||
2287 | */ | ||
2288 | struct TransportClient *client; | ||
2289 | |||
2290 | /** | ||
2291 | * Head of a MDLL of fragments created for this core message. | ||
2292 | */ | ||
2293 | struct PendingMessage *head_frag; | ||
2294 | |||
2295 | /** | ||
2296 | * Tail of a MDLL of fragments created for this core message. | ||
2297 | */ | ||
2298 | struct PendingMessage *tail_frag; | ||
2299 | |||
2300 | /** | ||
2301 | * Our parent in the fragmentation tree. | ||
2302 | */ | ||
2303 | struct PendingMessage *frag_parent; | ||
2304 | |||
2305 | /** | ||
2306 | * At what time should we give up on the transmission (and no longer retry)? | ||
2307 | */ | ||
2308 | struct GNUNET_TIME_Absolute timeout; | ||
2309 | |||
2310 | /** | ||
2311 | * What is the earliest time for us to retry transmission of this message? | ||
2312 | */ | ||
2313 | struct GNUNET_TIME_Absolute next_attempt; | ||
2314 | |||
2315 | /** | ||
2316 | * UUID to use for this message (used for reassembly of fragments, only | ||
2317 | * initialized if @e msg_uuid_set is #GNUNET_YES). | ||
2318 | */ | ||
2319 | struct MessageUUIDP msg_uuid; | ||
2320 | |||
2321 | /** | ||
2322 | * UUID we use to identify this message in our logs. | ||
2323 | * Generated by incrementing the "logging_uuid_gen". | ||
2324 | */ | ||
2325 | uint64_t logging_uuid; | ||
2326 | |||
2327 | /** | ||
2328 | * Type of the pending message. | ||
2329 | */ | ||
2330 | enum PendingMessageType pmt; | ||
2331 | |||
2332 | /** | ||
2333 | * Preferences for this message. | ||
2334 | * TODO: actually use this! | ||
2335 | */ | ||
2336 | enum GNUNET_MQ_PriorityPreferences prefs; | ||
2337 | |||
2338 | /** | ||
2339 | * If pmt is of type PMT_DV_BOX we store the used path here. | ||
2340 | */ | ||
2341 | struct DistanceVectorHop *used_dvh; | ||
2342 | |||
2343 | /** | ||
2344 | * Size of the original message. | ||
2345 | */ | ||
2346 | uint16_t bytes_msg; | ||
2347 | |||
2348 | /** | ||
2349 | * Offset at which we should generate the next fragment. | ||
2350 | */ | ||
2351 | uint16_t frag_off; | ||
2352 | |||
2353 | /** | ||
2354 | * Are we sending fragments at the moment? | ||
2355 | */ | ||
2356 | uint32_t frags_in_flight; | ||
2357 | |||
2358 | /** | ||
2359 | * The round we are (re)-sending fragments. | ||
2360 | */ | ||
2361 | uint32_t frags_in_flight_round; | ||
2362 | |||
2363 | /** | ||
2364 | * How many fragments do we have? | ||
2365 | **/ | ||
2366 | uint16_t frag_count; | ||
2367 | |||
2368 | /** | ||
2369 | * #GNUNET_YES once @e msg_uuid was initialized | ||
2370 | */ | ||
2371 | int16_t msg_uuid_set; | ||
2372 | |||
2373 | /* Followed by @e bytes_msg to transmit */ | ||
2374 | }; | ||
2375 | |||
2376 | |||
2377 | /** | ||
2378 | * Acknowledgement payload. | ||
2379 | */ | ||
2380 | struct TransportCummulativeAckPayload | ||
2381 | { | ||
2382 | /** | ||
2383 | * When did we receive the message we are ACKing? Used to calculate | ||
2384 | * the delay we introduced by cummulating ACKs. | ||
2385 | */ | ||
2386 | struct GNUNET_TIME_Absolute receive_time; | ||
2387 | |||
2388 | /** | ||
2389 | * UUID of a message being acknowledged. | ||
2390 | */ | ||
2391 | struct AcknowledgementUUIDP ack_uuid; | ||
2392 | }; | ||
2393 | |||
2394 | |||
2395 | /** | ||
2396 | * Data structure in which we track acknowledgements still to | ||
2397 | * be sent to the | ||
2398 | */ | ||
2399 | struct AcknowledgementCummulator | ||
2400 | { | ||
2401 | /** | ||
2402 | * Target peer for which we are accumulating ACKs here. | ||
2403 | */ | ||
2404 | struct GNUNET_PeerIdentity target; | ||
2405 | |||
2406 | /** | ||
2407 | * ACK data being accumulated. Only @e num_acks slots are valid. | ||
2408 | */ | ||
2409 | struct TransportCummulativeAckPayload ack_uuids[MAX_CUMMULATIVE_ACKS]; | ||
2410 | |||
2411 | /** | ||
2412 | * Task scheduled either to transmit the cumulative ACK message, | ||
2413 | * or to clean up this data structure after extended periods of | ||
2414 | * inactivity (if @e num_acks is zero). | ||
2415 | */ | ||
2416 | struct GNUNET_SCHEDULER_Task *task; | ||
2417 | |||
2418 | /** | ||
2419 | * When is @e task run (only used if @e num_acks is non-zero)? | ||
2420 | */ | ||
2421 | struct GNUNET_TIME_Absolute min_transmission_time; | ||
2422 | |||
2423 | /** | ||
2424 | * Counter to produce the `ack_counter` in the `struct | ||
2425 | * TransportReliabilityAckMessage`. Allows the receiver to detect | ||
2426 | * lost ACK messages. Incremented by @e num_acks upon transmission. | ||
2427 | */ | ||
2428 | uint32_t ack_counter; | ||
2429 | |||
2430 | /** | ||
2431 | * Number of entries used in @e ack_uuids. Reset to 0 upon transmission. | ||
2432 | */ | ||
2433 | unsigned int num_acks; | ||
2434 | }; | ||
2435 | |||
2436 | |||
2437 | /** | ||
2438 | * One of the addresses of this peer. | ||
2439 | */ | ||
2440 | struct AddressListEntry | ||
2441 | { | ||
2442 | /** | ||
2443 | * Kept in a DLL. | ||
2444 | */ | ||
2445 | struct AddressListEntry *next; | ||
2446 | |||
2447 | /** | ||
2448 | * Kept in a DLL. | ||
2449 | */ | ||
2450 | struct AddressListEntry *prev; | ||
2451 | |||
2452 | /** | ||
2453 | * Which communicator provides this address? | ||
2454 | */ | ||
2455 | struct TransportClient *tc; | ||
2456 | |||
2457 | /** | ||
2458 | * Store hello handle | ||
2459 | */ | ||
2460 | struct GNUNET_PEERSTORE_StoreHelloContext *shc; | ||
2461 | |||
2462 | /** | ||
2463 | * The actual address. | ||
2464 | */ | ||
2465 | const char *address; | ||
2466 | |||
2467 | /** | ||
2468 | * Signed address | ||
2469 | */ | ||
2470 | void *signed_address; | ||
2471 | |||
2472 | /** | ||
2473 | * Signed address length | ||
2474 | */ | ||
2475 | size_t signed_address_len; | ||
2476 | |||
2477 | /** | ||
2478 | * Current context for storing this address in the peerstore. | ||
2479 | */ | ||
2480 | struct GNUNET_PEERSTORE_StoreContext *sc; | ||
2481 | |||
2482 | /** | ||
2483 | * Task to periodically do @e st operation. | ||
2484 | */ | ||
2485 | struct GNUNET_SCHEDULER_Task *st; | ||
2486 | |||
2487 | /** | ||
2488 | * What is a typical lifetime the communicator expects this | ||
2489 | * address to have? (Always from now.) | ||
2490 | */ | ||
2491 | struct GNUNET_TIME_Relative expiration; | ||
2492 | |||
2493 | /** | ||
2494 | * Address identifier used by the communicator. | ||
2495 | */ | ||
2496 | uint32_t aid; | ||
2497 | |||
2498 | /** | ||
2499 | * Network type offered by this address. | ||
2500 | */ | ||
2501 | enum GNUNET_NetworkType nt; | ||
2502 | }; | ||
2503 | |||
2504 | |||
2505 | /** | ||
2506 | * Client connected to the transport service. | ||
2507 | */ | ||
2508 | struct TransportClient | ||
2509 | { | ||
2510 | /** | ||
2511 | * Kept in a DLL. | ||
2512 | */ | ||
2513 | struct TransportClient *next; | ||
2514 | |||
2515 | /** | ||
2516 | * Kept in a DLL. | ||
2517 | */ | ||
2518 | struct TransportClient *prev; | ||
2519 | |||
2520 | /** | ||
2521 | * Handle to the client. | ||
2522 | */ | ||
2523 | struct GNUNET_SERVICE_Client *client; | ||
2524 | |||
2525 | /** | ||
2526 | * Message queue to the client. | ||
2527 | */ | ||
2528 | struct GNUNET_MQ_Handle *mq; | ||
2529 | |||
2530 | /** | ||
2531 | * What type of client is this? | ||
2532 | */ | ||
2533 | enum ClientType type; | ||
2534 | |||
2535 | union | ||
2536 | { | ||
2537 | /** | ||
2538 | * Information for @e type #CT_CORE. | ||
2539 | */ | ||
2540 | struct | ||
2541 | { | ||
2542 | /** | ||
2543 | * Head of list of messages pending for this client, sorted by | ||
2544 | * transmission time ("next_attempt" + possibly internal prioritization). | ||
2545 | */ | ||
2546 | struct PendingMessage *pending_msg_head; | ||
2547 | |||
2548 | /** | ||
2549 | * Tail of list of messages pending for this client. | ||
2550 | */ | ||
2551 | struct PendingMessage *pending_msg_tail; | ||
2552 | } core; | ||
2553 | |||
2554 | /** | ||
2555 | * Information for @e type #CT_MONITOR. | ||
2556 | */ | ||
2557 | struct | ||
2558 | { | ||
2559 | /** | ||
2560 | * Peer identity to monitor the addresses of. | ||
2561 | * Zero to monitor all neighbours. Valid if | ||
2562 | * @e type is #CT_MONITOR. | ||
2563 | */ | ||
2564 | struct GNUNET_PeerIdentity peer; | ||
2565 | |||
2566 | /** | ||
2567 | * Is this a one-shot monitor? | ||
2568 | */ | ||
2569 | int one_shot; | ||
2570 | } monitor; | ||
2571 | |||
2572 | |||
2573 | /** | ||
2574 | * Information for @e type #CT_COMMUNICATOR. | ||
2575 | */ | ||
2576 | struct | ||
2577 | { | ||
2578 | /** | ||
2579 | * If @e type is #CT_COMMUNICATOR, this communicator | ||
2580 | * supports communicating using these addresses. | ||
2581 | */ | ||
2582 | char *address_prefix; | ||
2583 | |||
2584 | /** | ||
2585 | * Head of DLL of queues offered by this communicator. | ||
2586 | */ | ||
2587 | struct Queue *queue_head; | ||
2588 | |||
2589 | /** | ||
2590 | * Tail of DLL of queues offered by this communicator. | ||
2591 | */ | ||
2592 | struct Queue *queue_tail; | ||
2593 | |||
2594 | /** | ||
2595 | * Head of list of the addresses of this peer offered by this | ||
2596 | * communicator. | ||
2597 | */ | ||
2598 | struct AddressListEntry *addr_head; | ||
2599 | |||
2600 | /** | ||
2601 | * Tail of list of the addresses of this peer offered by this | ||
2602 | * communicator. | ||
2603 | */ | ||
2604 | struct AddressListEntry *addr_tail; | ||
2605 | |||
2606 | /** | ||
2607 | * Number of queue entries in all queues to this communicator. Used | ||
2608 | * throttle sending to a communicator if we see that the communicator | ||
2609 | * is globally unable to keep up. | ||
2610 | */ | ||
2611 | unsigned int total_queue_length; | ||
2612 | |||
2613 | /** | ||
2614 | * Task to check for timed out QueueEntry. | ||
2615 | */ | ||
2616 | struct GNUNET_SCHEDULER_Task *free_queue_entry_task; | ||
2617 | |||
2618 | /** | ||
2619 | * Characteristics of this communicator. | ||
2620 | */ | ||
2621 | enum GNUNET_TRANSPORT_CommunicatorCharacteristics cc; | ||
2622 | } communicator; | ||
2623 | |||
2624 | /** | ||
2625 | * Information for @e type #CT_APPLICATION | ||
2626 | */ | ||
2627 | struct | ||
2628 | { | ||
2629 | /** | ||
2630 | * Map of requests for peers the given client application would like to | ||
2631 | * see connections for. Maps from PIDs to `struct PeerRequest`. | ||
2632 | */ | ||
2633 | struct GNUNET_CONTAINER_MultiPeerMap *requests; | ||
2634 | } application; | ||
2635 | } details; | ||
2636 | }; | ||
2637 | |||
2638 | |||
2639 | /** | ||
2640 | * State we keep for validation activities. Each of these | ||
2641 | * is both in the #validation_heap and the #validation_map. | ||
2642 | */ | ||
2643 | struct ValidationState | ||
2644 | { | ||
2645 | /** | ||
2646 | * For which peer is @a address to be validated (or possibly valid)? | ||
2647 | * Serves as key in the #validation_map. | ||
2648 | */ | ||
2649 | struct GNUNET_PeerIdentity pid; | ||
2650 | |||
2651 | /** | ||
2652 | * How long did the peer claim this @e address to be valid? Capped at | ||
2653 | * minimum of #MAX_ADDRESS_VALID_UNTIL relative to the time where we last | ||
2654 | * were told about the address and the value claimed by the other peer at | ||
2655 | * that time. May be updated similarly when validation succeeds. | ||
2656 | */ | ||
2657 | struct GNUNET_TIME_Absolute valid_until; | ||
2658 | |||
2659 | /** | ||
2660 | * How long do *we* consider this @e address to be valid? | ||
2661 | * In the past or zero if we have not yet validated it. | ||
2662 | */ | ||
2663 | struct GNUNET_TIME_Absolute validated_until; | ||
2664 | |||
2665 | /** | ||
2666 | * When did we FIRST use the current @e challenge in a message? | ||
2667 | * Used to sanity-check @code{origin_time} in the response when | ||
2668 | * calculating the RTT. If the @code{origin_time} is not in | ||
2669 | * the expected range, the response is discarded as malicious. | ||
2670 | */ | ||
2671 | struct GNUNET_TIME_Absolute first_challenge_use; | ||
2672 | |||
2673 | /** | ||
2674 | * When did we LAST use the current @e challenge in a message? | ||
2675 | * Used to sanity-check @code{origin_time} in the response when | ||
2676 | * calculating the RTT. If the @code{origin_time} is not in | ||
2677 | * the expected range, the response is discarded as malicious. | ||
2678 | */ | ||
2679 | struct GNUNET_TIME_Absolute last_challenge_use; | ||
2680 | |||
2681 | /** | ||
2682 | * Next time we will send the @e challenge to the peer, if this time is past | ||
2683 | * @e valid_until, this validation state is released at this time. If the | ||
2684 | * address is valid, @e next_challenge is set to @e validated_until MINUS @e | ||
2685 | * validation_delay * #VALIDATION_RTT_BUFFER_FACTOR, such that we will try | ||
2686 | * to re-validate before the validity actually expires. | ||
2687 | */ | ||
2688 | struct GNUNET_TIME_Absolute next_challenge; | ||
2689 | |||
2690 | /** | ||
2691 | * Current backoff factor we're applying for sending the @a challenge. | ||
2692 | * Reset to 0 if the @a challenge is confirmed upon validation. | ||
2693 | * Reduced to minimum of #FAST_VALIDATION_CHALLENGE_FREQ and half of the | ||
2694 | * existing value if we receive an unvalidated address again over | ||
2695 | * another channel (and thus should consider the information "fresh"). | ||
2696 | * Maximum is #MAX_VALIDATION_CHALLENGE_FREQ. | ||
2697 | */ | ||
2698 | struct GNUNET_TIME_Relative challenge_backoff; | ||
2699 | |||
2700 | /** | ||
2701 | * Initially set to "forever". Once @e validated_until is set, this value is | ||
2702 | * set to the RTT that tells us how long it took to receive the validation. | ||
2703 | */ | ||
2704 | struct GNUNET_TIME_Relative validation_rtt; | ||
2705 | |||
2706 | /** | ||
2707 | * The challenge we sent to the peer to get it to validate the address. Note | ||
2708 | * that we rotate the challenge whenever we update @e validated_until to | ||
2709 | * avoid attacks where a peer simply replays an old challenge in the future. | ||
2710 | * (We must not rotate more often as otherwise we may discard valid answers | ||
2711 | * due to packet losses, latency and reorderings on the network). | ||
2712 | */ | ||
2713 | struct GNUNET_CRYPTO_ChallengeNonceP challenge; | ||
2714 | |||
2715 | /** | ||
2716 | * Hascode key to store state in a map. | ||
2717 | */ | ||
2718 | struct GNUNET_HashCode hc; | ||
2719 | |||
2720 | /** | ||
2721 | * Task to revalidate this address. | ||
2722 | */ | ||
2723 | struct GNUNET_SCHEDULER_Task *revalidation_task; | ||
2724 | |||
2725 | /** | ||
2726 | * Claimed address of the peer. | ||
2727 | */ | ||
2728 | char *address; | ||
2729 | |||
2730 | /** | ||
2731 | * Entry in the #validation_heap, which is sorted by @e next_challenge. The | ||
2732 | * heap is used to figure out when the next validation activity should be | ||
2733 | * run. | ||
2734 | */ | ||
2735 | struct GNUNET_CONTAINER_HeapNode *hn; | ||
2736 | |||
2737 | /** | ||
2738 | * Handle to a PEERSTORE store operation for this @e address. NULL if | ||
2739 | * no PEERSTORE operation is pending. | ||
2740 | */ | ||
2741 | struct GNUNET_PEERSTORE_StoreContext *sc; | ||
2742 | |||
2743 | /** | ||
2744 | * Self-imposed limit on the previous flow control window. (May be zero, | ||
2745 | * if we never used data from the previous window or are establishing the | ||
2746 | * connection for the first time). | ||
2747 | */ | ||
2748 | uint32_t last_window_consum_limit; | ||
2749 | |||
2750 | /** | ||
2751 | * We are technically ready to send the challenge, but we are waiting for | ||
2752 | * the respective queue to become available for transmission. | ||
2753 | */ | ||
2754 | int awaiting_queue; | ||
2755 | }; | ||
2756 | |||
2757 | |||
2758 | /** | ||
2759 | * A Backtalker is a peer sending us backchannel messages. We use this | ||
2760 | * struct to detect monotonic time violations, cache ephemeral key | ||
2761 | * material (to avoid repeatedly checking signatures), and to synchronize | ||
2762 | * monotonic time with the PEERSTORE. | ||
2763 | */ | ||
2764 | struct Backtalker | ||
2765 | { | ||
2766 | /** | ||
2767 | * Peer this is about. | ||
2768 | */ | ||
2769 | struct GNUNET_PeerIdentity pid; | ||
2770 | |||
2771 | /** | ||
2772 | * Last (valid) monotonic time received from this sender. | ||
2773 | */ | ||
2774 | struct GNUNET_TIME_Absolute monotonic_time; | ||
2775 | |||
2776 | /** | ||
2777 | * When will this entry time out? | ||
2778 | */ | ||
2779 | struct GNUNET_TIME_Absolute timeout; | ||
2780 | |||
2781 | /** | ||
2782 | * Last (valid) ephemeral key received from this sender. | ||
2783 | */ | ||
2784 | struct GNUNET_CRYPTO_EcdhePublicKey last_ephemeral; | ||
2785 | |||
2786 | /** | ||
2787 | * Task associated with this backtalker. Can be for timeout, | ||
2788 | * or other asynchronous operations. | ||
2789 | */ | ||
2790 | struct GNUNET_SCHEDULER_Task *task; | ||
2791 | |||
2792 | /** | ||
2793 | * Communicator context waiting on this backchannel's @e get, or NULL. | ||
2794 | */ | ||
2795 | struct CommunicatorMessageContext *cmc; | ||
2796 | |||
2797 | /** | ||
2798 | * Handle for an operation to fetch @e monotonic_time information from the | ||
2799 | * PEERSTORE, or NULL. | ||
2800 | */ | ||
2801 | struct GNUNET_PEERSTORE_IterateContext *get; | ||
2802 | |||
2803 | /** | ||
2804 | * Handle to a PEERSTORE store operation for this @e pid's @e | ||
2805 | * monotonic_time. NULL if no PEERSTORE operation is pending. | ||
2806 | */ | ||
2807 | struct GNUNET_PEERSTORE_StoreContext *sc; | ||
2808 | |||
2809 | /** | ||
2810 | * Number of bytes of the original message body that follows after this | ||
2811 | * struct. | ||
2812 | */ | ||
2813 | size_t body_size; | ||
2814 | }; | ||
2815 | |||
2816 | /** | ||
2817 | * Ring buffer for a CORE message we did not deliver to CORE, because of missing virtual link to sender. | ||
2818 | */ | ||
2819 | static struct RingBufferEntry *ring_buffer[RING_BUFFER_SIZE]; | ||
2820 | |||
2821 | /** | ||
2822 | * Head of the ring buffer. | ||
2823 | */ | ||
2824 | static unsigned int ring_buffer_head; | ||
2825 | |||
2826 | /** | ||
2827 | * Is the ring buffer filled up to RING_BUFFER_SIZE. | ||
2828 | */ | ||
2829 | static unsigned int is_ring_buffer_full; | ||
2830 | |||
2831 | /** | ||
2832 | * Ring buffer for a forwarded DVBox message we did not deliver to the next hop, because of missing virtual link that hop. | ||
2833 | */ | ||
2834 | static struct PendingMessage *ring_buffer_dv[RING_BUFFER_SIZE]; | ||
2835 | |||
2836 | /** | ||
2837 | * Head of the ring buffer. | ||
2838 | */ | ||
2839 | static unsigned int ring_buffer_dv_head; | ||
2840 | |||
2841 | /** | ||
2842 | * Is the ring buffer filled up to RING_BUFFER_SIZE. | ||
2843 | */ | ||
2844 | static unsigned int is_ring_buffer_dv_full; | ||
2845 | |||
2846 | /** | ||
2847 | * Head of linked list of all clients to this service. | ||
2848 | */ | ||
2849 | static struct TransportClient *clients_head; | ||
2850 | |||
2851 | /** | ||
2852 | * Tail of linked list of all clients to this service. | ||
2853 | */ | ||
2854 | static struct TransportClient *clients_tail; | ||
2855 | |||
2856 | /** | ||
2857 | * Statistics handle. | ||
2858 | */ | ||
2859 | static struct GNUNET_STATISTICS_Handle *GST_stats; | ||
2860 | |||
2861 | /** | ||
2862 | * Configuration handle. | ||
2863 | */ | ||
2864 | static const struct GNUNET_CONFIGURATION_Handle *GST_cfg; | ||
2865 | |||
2866 | /** | ||
2867 | * Our public key. | ||
2868 | */ | ||
2869 | static struct GNUNET_PeerIdentity GST_my_identity; | ||
2870 | |||
2871 | /** | ||
2872 | * Our HELLO | ||
2873 | */ | ||
2874 | struct GNUNET_HELLO_Builder *GST_my_hello; | ||
2875 | |||
2876 | /** | ||
2877 | * Our private key. | ||
2878 | */ | ||
2879 | static struct GNUNET_CRYPTO_EddsaPrivateKey *GST_my_private_key; | ||
2880 | |||
2881 | /** | ||
2882 | * Map from PIDs to `struct Neighbour` entries. A peer is | ||
2883 | * a neighbour if we have an MQ to it from some communicator. | ||
2884 | */ | ||
2885 | static struct GNUNET_CONTAINER_MultiPeerMap *neighbours; | ||
2886 | |||
2887 | /** | ||
2888 | * Map from PIDs to `struct Backtalker` entries. A peer is | ||
2889 | * a backtalker if it recently send us backchannel messages. | ||
2890 | */ | ||
2891 | static struct GNUNET_CONTAINER_MultiPeerMap *backtalkers; | ||
2892 | |||
2893 | /** | ||
2894 | * Map from PIDs to `struct AcknowledgementCummulator`s. | ||
2895 | * Here we track the cumulative ACKs for transmission. | ||
2896 | */ | ||
2897 | static struct GNUNET_CONTAINER_MultiPeerMap *ack_cummulators; | ||
2898 | |||
2899 | /** | ||
2900 | * Map of pending acknowledgements, mapping `struct AcknowledgementUUID` to | ||
2901 | * a `struct PendingAcknowledgement`. | ||
2902 | */ | ||
2903 | static struct GNUNET_CONTAINER_MultiUuidmap *pending_acks; | ||
2904 | |||
2905 | /** | ||
2906 | * Map from PIDs to `struct DistanceVector` entries describing | ||
2907 | * known paths to the peer. | ||
2908 | */ | ||
2909 | static struct GNUNET_CONTAINER_MultiPeerMap *dv_routes; | ||
2910 | |||
2911 | /** | ||
2912 | * Map from PIDs to `struct ValidationState` entries describing | ||
2913 | * addresses we are aware of and their validity state. | ||
2914 | */ | ||
2915 | static struct GNUNET_CONTAINER_MultiPeerMap *validation_map; | ||
2916 | |||
2917 | /** | ||
2918 | * Map from addresses to `struct ValidationState` entries describing | ||
2919 | * addresses we are aware of and their validity state. | ||
2920 | */ | ||
2921 | static struct GNUNET_CONTAINER_MultiHashMap *revalidation_map; | ||
2922 | |||
2923 | /** | ||
2924 | * Map from PIDs to `struct VirtualLink` entries describing | ||
2925 | * links CORE knows to exist. | ||
2926 | */ | ||
2927 | static struct GNUNET_CONTAINER_MultiPeerMap *links; | ||
2928 | |||
2929 | /** | ||
2930 | * Map from challenges to `struct LearnLaunchEntry` values. | ||
2931 | */ | ||
2932 | static struct GNUNET_CONTAINER_MultiShortmap *dvlearn_map; | ||
2933 | |||
2934 | /** | ||
2935 | * Head of a DLL sorted by launch time. | ||
2936 | */ | ||
2937 | static struct LearnLaunchEntry *lle_head = NULL; | ||
2938 | |||
2939 | /** | ||
2940 | * Tail of a DLL sorted by launch time. | ||
2941 | */ | ||
2942 | static struct LearnLaunchEntry *lle_tail = NULL; | ||
2943 | |||
2944 | /** | ||
2945 | * MIN Heap sorted by "next_challenge" to `struct ValidationState` entries | ||
2946 | * sorting addresses we are aware of by when we should next try to (re)validate | ||
2947 | * (or expire) them. | ||
2948 | */ | ||
2949 | static struct GNUNET_CONTAINER_Heap *validation_heap; | ||
2950 | |||
2951 | /** | ||
2952 | * Handle for connect to the NAT service. | ||
2953 | */ | ||
2954 | struct GNUNET_NAT_Handle *nh; | ||
2955 | |||
2956 | /** | ||
2957 | * Database for peer's HELLOs. | ||
2958 | */ | ||
2959 | static struct GNUNET_PEERSTORE_Handle *peerstore; | ||
2960 | |||
2961 | /** | ||
2962 | * Task run to initiate DV learning. | ||
2963 | */ | ||
2964 | static struct GNUNET_SCHEDULER_Task *dvlearn_task; | ||
2965 | |||
2966 | /** | ||
2967 | * Task to run address validation. | ||
2968 | */ | ||
2969 | static struct GNUNET_SCHEDULER_Task *validation_task; | ||
2970 | |||
2971 | /** | ||
2972 | * List of incoming connections where we are trying | ||
2973 | * to get a connection back established. Length | ||
2974 | * kept in #ir_total. | ||
2975 | */ | ||
2976 | static struct IncomingRequest *ir_head; | ||
2977 | |||
2978 | /** | ||
2979 | * Tail of DLL starting at #ir_head. | ||
2980 | */ | ||
2981 | static struct IncomingRequest *ir_tail; | ||
2982 | |||
2983 | /** | ||
2984 | * Length of the DLL starting at #ir_head. | ||
2985 | */ | ||
2986 | static unsigned int ir_total; | ||
2987 | |||
2988 | /** | ||
2989 | * Generator of `logging_uuid` in `struct PendingMessage`. | ||
2990 | */ | ||
2991 | static unsigned long long logging_uuid_gen; | ||
2992 | |||
2993 | /** | ||
2994 | * Monotonic time we use for HELLOs generated at this time. TODO: we | ||
2995 | * should increase this value from time to time (i.e. whenever a | ||
2996 | * `struct AddressListEntry` actually expires), but IF we do this, we | ||
2997 | * must also update *all* (remaining) addresses in the PEERSTORE at | ||
2998 | * that time! (So for now only increased when the peer is restarted, | ||
2999 | * which hopefully roughly matches whenever our addresses change.) | ||
3000 | */ | ||
3001 | static struct GNUNET_TIME_Absolute hello_mono_time; | ||
3002 | |||
3003 | /** | ||
3004 | * Indication if we have received a shutdown signal | ||
3005 | * and are in the process of cleaning up. | ||
3006 | */ | ||
3007 | static int in_shutdown; | ||
3008 | |||
3009 | /** | ||
3010 | * Get an offset into the transmission history buffer for `struct | ||
3011 | * PerformanceData`. Note that the caller must perform the required | ||
3012 | * modulo #GOODPUT_AGING_SLOTS operation before indexing into the | ||
3013 | * array! | ||
3014 | * | ||
3015 | * An 'age' lasts 15 minute slots. | ||
3016 | * | ||
3017 | * @return current age of the world | ||
3018 | */ | ||
3019 | static unsigned int | ||
3020 | get_age () | ||
3021 | { | ||
3022 | struct GNUNET_TIME_Absolute now; | ||
3023 | |||
3024 | now = GNUNET_TIME_absolute_get (); | ||
3025 | return now.abs_value_us / GNUNET_TIME_UNIT_MINUTES.rel_value_us / 15; | ||
3026 | } | ||
3027 | |||
3028 | |||
3029 | /** | ||
3030 | * Release @a ir data structure. | ||
3031 | * | ||
3032 | * @param ir data structure to release | ||
3033 | */ | ||
3034 | static void | ||
3035 | free_incoming_request (struct IncomingRequest *ir) | ||
3036 | { | ||
3037 | GNUNET_CONTAINER_DLL_remove (ir_head, ir_tail, ir); | ||
3038 | GNUNET_assert (ir_total > 0); | ||
3039 | ir_total--; | ||
3040 | if (NULL != ir->nc) | ||
3041 | GNUNET_PEERSTORE_monitor_stop (ir->nc); | ||
3042 | ir->nc = NULL; | ||
3043 | GNUNET_free (ir); | ||
3044 | } | ||
3045 | |||
3046 | |||
3047 | /** | ||
3048 | * Release @a pa data structure. | ||
3049 | * | ||
3050 | * @param pa data structure to release | ||
3051 | */ | ||
3052 | static void | ||
3053 | free_pending_acknowledgement (struct PendingAcknowledgement *pa) | ||
3054 | { | ||
3055 | struct Queue *q = pa->queue; | ||
3056 | struct PendingMessage *pm = pa->pm; | ||
3057 | struct DistanceVectorHop *dvh = pa->dvh; | ||
3058 | |||
3059 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3060 | "free_pending_acknowledgement\n"); | ||
3061 | if (NULL != q) | ||
3062 | { | ||
3063 | GNUNET_CONTAINER_MDLL_remove (queue, q->pa_head, q->pa_tail, pa); | ||
3064 | pa->queue = NULL; | ||
3065 | } | ||
3066 | if (NULL != pm) | ||
3067 | { | ||
3068 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3069 | "remove pa from message\n"); | ||
3070 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3071 | "remove pa from message %" PRIu64 "\n", | ||
3072 | pm->logging_uuid); | ||
3073 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3074 | "remove pa from message %u\n", | ||
3075 | pm->pmt); | ||
3076 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3077 | "remove pa from message %s\n", | ||
3078 | GNUNET_uuid2s (&pa->ack_uuid.value)); | ||
3079 | GNUNET_CONTAINER_MDLL_remove (pm, pm->pa_head, pm->pa_tail, pa); | ||
3080 | pa->pm = NULL; | ||
3081 | } | ||
3082 | if (NULL != dvh) | ||
3083 | { | ||
3084 | GNUNET_CONTAINER_MDLL_remove (dvh, dvh->pa_head, dvh->pa_tail, pa); | ||
3085 | pa->queue = NULL; | ||
3086 | } | ||
3087 | GNUNET_assert (GNUNET_YES == | ||
3088 | GNUNET_CONTAINER_multiuuidmap_remove (pending_acks, | ||
3089 | &pa->ack_uuid.value, | ||
3090 | pa)); | ||
3091 | GNUNET_free (pa); | ||
3092 | } | ||
3093 | |||
3094 | |||
3095 | /** | ||
3096 | * Free fragment tree below @e root, excluding @e root itself. | ||
3097 | * FIXME: this does NOT seem to have the intended semantics | ||
3098 | * based on how this is called. Seems we generally DO expect | ||
3099 | * @a root to be free'ed itself as well! | ||
3100 | * | ||
3101 | * @param root root of the tree to free | ||
3102 | */ | ||
3103 | static void | ||
3104 | free_fragment_tree (struct PendingMessage *root) | ||
3105 | { | ||
3106 | struct PendingMessage *frag; | ||
3107 | |||
3108 | while (NULL != (frag = root->head_frag)) | ||
3109 | { | ||
3110 | struct PendingAcknowledgement *pa; | ||
3111 | |||
3112 | free_fragment_tree (frag); | ||
3113 | while (NULL != (pa = frag->pa_head)) | ||
3114 | { | ||
3115 | GNUNET_CONTAINER_MDLL_remove (pm, frag->pa_head, frag->pa_tail, pa); | ||
3116 | pa->pm = NULL; | ||
3117 | } | ||
3118 | GNUNET_CONTAINER_MDLL_remove (frag, root->head_frag, root->tail_frag, frag); | ||
3119 | if (NULL != frag->qe) | ||
3120 | { | ||
3121 | GNUNET_assert (frag == frag->qe->pm); | ||
3122 | frag->qe->pm = NULL; | ||
3123 | } | ||
3124 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3125 | "Free frag %p\n", | ||
3126 | frag); | ||
3127 | GNUNET_free (frag); | ||
3128 | } | ||
3129 | } | ||
3130 | |||
3131 | |||
3132 | /** | ||
3133 | * Release memory associated with @a pm and remove @a pm from associated | ||
3134 | * data structures. @a pm must be a top-level pending message and not | ||
3135 | * a fragment in the tree. The entire tree is freed (if applicable). | ||
3136 | * | ||
3137 | * @param pm the pending message to free | ||
3138 | */ | ||
3139 | static void | ||
3140 | free_pending_message (struct PendingMessage *pm) | ||
3141 | { | ||
3142 | struct TransportClient *tc = pm->client; | ||
3143 | struct VirtualLink *vl = pm->vl; | ||
3144 | struct PendingAcknowledgement *pa; | ||
3145 | |||
3146 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3147 | "Freeing pm %p\n", | ||
3148 | pm); | ||
3149 | if (NULL != tc) | ||
3150 | { | ||
3151 | GNUNET_CONTAINER_MDLL_remove (client, | ||
3152 | tc->details.core.pending_msg_head, | ||
3153 | tc->details.core.pending_msg_tail, | ||
3154 | pm); | ||
3155 | } | ||
3156 | if ((NULL != vl) && (NULL == pm->frag_parent)) | ||
3157 | { | ||
3158 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3159 | "Removing pm %" PRIu64 "\n", | ||
3160 | pm->logging_uuid); | ||
3161 | GNUNET_CONTAINER_MDLL_remove (vl, | ||
3162 | vl->pending_msg_head, | ||
3163 | vl->pending_msg_tail, | ||
3164 | pm); | ||
3165 | } | ||
3166 | else if (NULL != pm->frag_parent && PMT_DV_BOX != pm->pmt) | ||
3167 | { | ||
3168 | struct PendingMessage *root = pm->frag_parent; | ||
3169 | |||
3170 | while (NULL != root->frag_parent && PMT_DV_BOX != root->pmt) | ||
3171 | root = root->frag_parent; | ||
3172 | |||
3173 | root->frag_count--; | ||
3174 | } | ||
3175 | while (NULL != (pa = pm->pa_head)) | ||
3176 | { | ||
3177 | if (NULL == pa) | ||
3178 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3179 | "free pending pa null\n"); | ||
3180 | if (NULL == pm->pa_tail) | ||
3181 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3182 | "free pending pa_tail null\n"); | ||
3183 | if (NULL == pa->prev_pa) | ||
3184 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3185 | "free pending pa prev null\n"); | ||
3186 | if (NULL == pa->next_pa) | ||
3187 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3188 | "free pending pa next null\n"); | ||
3189 | GNUNET_CONTAINER_MDLL_remove (pm, pm->pa_head, pm->pa_tail, pa); | ||
3190 | pa->pm = NULL; | ||
3191 | } | ||
3192 | |||
3193 | free_fragment_tree (pm); | ||
3194 | if (NULL != pm->qe) | ||
3195 | { | ||
3196 | GNUNET_assert (pm == pm->qe->pm); | ||
3197 | pm->qe->pm = NULL; | ||
3198 | } | ||
3199 | if (NULL != pm->bpm) | ||
3200 | { | ||
3201 | free_fragment_tree (pm->bpm); | ||
3202 | if (NULL != pm->bpm->qe) | ||
3203 | { | ||
3204 | struct QueueEntry *qe = pm->bpm->qe; | ||
3205 | |||
3206 | qe->pm = NULL; | ||
3207 | } | ||
3208 | GNUNET_free (pm->bpm); | ||
3209 | } | ||
3210 | |||
3211 | GNUNET_free (pm); | ||
3212 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3213 | "Freeing pm done\n"); | ||
3214 | } | ||
3215 | |||
3216 | |||
3217 | /** | ||
3218 | * Free @a rc | ||
3219 | * | ||
3220 | * @param rc data structure to free | ||
3221 | */ | ||
3222 | static void | ||
3223 | free_reassembly_context (struct ReassemblyContext *rc) | ||
3224 | { | ||
3225 | struct VirtualLink *vl = rc->virtual_link; | ||
3226 | |||
3227 | GNUNET_assert (rc == GNUNET_CONTAINER_heap_remove_node (rc->hn)); | ||
3228 | GNUNET_assert (GNUNET_OK == | ||
3229 | GNUNET_CONTAINER_multihashmap32_remove (vl->reassembly_map, | ||
3230 | rc->msg_uuid.uuid, | ||
3231 | rc)); | ||
3232 | GNUNET_free (rc); | ||
3233 | } | ||
3234 | |||
3235 | |||
3236 | /** | ||
3237 | * Task run to clean up reassembly context of a neighbour that have expired. | ||
3238 | * | ||
3239 | * @param cls a `struct Neighbour` | ||
3240 | */ | ||
3241 | static void | ||
3242 | reassembly_cleanup_task (void *cls) | ||
3243 | { | ||
3244 | struct VirtualLink *vl = cls; | ||
3245 | struct ReassemblyContext *rc; | ||
3246 | |||
3247 | vl->reassembly_timeout_task = NULL; | ||
3248 | while (NULL != (rc = GNUNET_CONTAINER_heap_peek (vl->reassembly_heap))) | ||
3249 | { | ||
3250 | if (0 == GNUNET_TIME_absolute_get_remaining (rc->reassembly_timeout) | ||
3251 | .rel_value_us) | ||
3252 | { | ||
3253 | free_reassembly_context (rc); | ||
3254 | continue; | ||
3255 | } | ||
3256 | GNUNET_assert (NULL == vl->reassembly_timeout_task); | ||
3257 | vl->reassembly_timeout_task = | ||
3258 | GNUNET_SCHEDULER_add_at (rc->reassembly_timeout, | ||
3259 | &reassembly_cleanup_task, | ||
3260 | vl); | ||
3261 | return; | ||
3262 | } | ||
3263 | } | ||
3264 | |||
3265 | |||
3266 | /** | ||
3267 | * function called to #free_reassembly_context(). | ||
3268 | * | ||
3269 | * @param cls NULL | ||
3270 | * @param key unused | ||
3271 | * @param value a `struct ReassemblyContext` to free | ||
3272 | * @return #GNUNET_OK (continue iteration) | ||
3273 | */ | ||
3274 | static int | ||
3275 | free_reassembly_cb (void *cls, uint32_t key, void *value) | ||
3276 | { | ||
3277 | struct ReassemblyContext *rc = value; | ||
3278 | |||
3279 | (void) cls; | ||
3280 | (void) key; | ||
3281 | free_reassembly_context (rc); | ||
3282 | return GNUNET_OK; | ||
3283 | } | ||
3284 | |||
3285 | |||
3286 | /** | ||
3287 | * Free virtual link. | ||
3288 | * | ||
3289 | * @param vl link data to free | ||
3290 | */ | ||
3291 | static void | ||
3292 | free_virtual_link (struct VirtualLink *vl) | ||
3293 | { | ||
3294 | struct PendingMessage *pm; | ||
3295 | struct CoreSentContext *csc; | ||
3296 | |||
3297 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3298 | "free virtual link %p\n", | ||
3299 | vl); | ||
3300 | |||
3301 | if (NULL != vl->reassembly_map) | ||
3302 | { | ||
3303 | GNUNET_CONTAINER_multihashmap32_iterate (vl->reassembly_map, | ||
3304 | &free_reassembly_cb, | ||
3305 | NULL); | ||
3306 | GNUNET_CONTAINER_multihashmap32_destroy (vl->reassembly_map); | ||
3307 | vl->reassembly_map = NULL; | ||
3308 | GNUNET_CONTAINER_heap_destroy (vl->reassembly_heap); | ||
3309 | vl->reassembly_heap = NULL; | ||
3310 | } | ||
3311 | if (NULL != vl->reassembly_timeout_task) | ||
3312 | { | ||
3313 | GNUNET_SCHEDULER_cancel (vl->reassembly_timeout_task); | ||
3314 | vl->reassembly_timeout_task = NULL; | ||
3315 | } | ||
3316 | while (NULL != (pm = vl->pending_msg_head)) | ||
3317 | free_pending_message (pm); | ||
3318 | GNUNET_assert (GNUNET_YES == | ||
3319 | GNUNET_CONTAINER_multipeermap_remove (links, &vl->target, vl)); | ||
3320 | if (NULL != vl->visibility_task) | ||
3321 | { | ||
3322 | GNUNET_SCHEDULER_cancel (vl->visibility_task); | ||
3323 | vl->visibility_task = NULL; | ||
3324 | } | ||
3325 | if (NULL != vl->fc_retransmit_task) | ||
3326 | { | ||
3327 | GNUNET_SCHEDULER_cancel (vl->fc_retransmit_task); | ||
3328 | vl->fc_retransmit_task = NULL; | ||
3329 | } | ||
3330 | while (NULL != (csc = vl->csc_head)) | ||
3331 | { | ||
3332 | GNUNET_CONTAINER_DLL_remove (vl->csc_head, vl->csc_tail, csc); | ||
3333 | GNUNET_assert (vl == csc->vl); | ||
3334 | csc->vl = NULL; | ||
3335 | } | ||
3336 | GNUNET_break (NULL == vl->n); | ||
3337 | GNUNET_break (NULL == vl->dv); | ||
3338 | GNUNET_free (vl); | ||
3339 | } | ||
3340 | |||
3341 | |||
3342 | /** | ||
3343 | * Free validation state. | ||
3344 | * | ||
3345 | * @param vs validation state to free | ||
3346 | */ | ||
3347 | static void | ||
3348 | free_validation_state (struct ValidationState *vs) | ||
3349 | { | ||
3350 | if (NULL != vs->revalidation_task) | ||
3351 | { | ||
3352 | GNUNET_SCHEDULER_cancel (vs->revalidation_task); | ||
3353 | vs->revalidation_task = NULL; | ||
3354 | } | ||
3355 | /*memcpy (&hkey, | ||
3356 | &hc, | ||
3357 | sizeof (hkey));*/ | ||
3358 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3359 | "Remove key %s for address %s map size %u contains %u during freeing state\n", | ||
3360 | GNUNET_h2s (&vs->hc), | ||
3361 | vs->address, | ||
3362 | GNUNET_CONTAINER_multihashmap_size (revalidation_map), | ||
3363 | GNUNET_CONTAINER_multihashmap_contains (revalidation_map, | ||
3364 | &vs->hc)); | ||
3365 | GNUNET_CONTAINER_multihashmap_remove (revalidation_map, &vs->hc, vs); | ||
3366 | GNUNET_assert ( | ||
3367 | GNUNET_YES == | ||
3368 | GNUNET_CONTAINER_multipeermap_remove (validation_map, &vs->pid, vs)); | ||
3369 | GNUNET_CONTAINER_heap_remove_node (vs->hn); | ||
3370 | vs->hn = NULL; | ||
3371 | if (NULL != vs->sc) | ||
3372 | { | ||
3373 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3374 | "store cancel\n"); | ||
3375 | GNUNET_PEERSTORE_store_cancel (vs->sc); | ||
3376 | vs->sc = NULL; | ||
3377 | } | ||
3378 | GNUNET_free (vs->address); | ||
3379 | GNUNET_free (vs); | ||
3380 | } | ||
3381 | |||
3382 | |||
3383 | /** | ||
3384 | * Lookup neighbour for peer @a pid. | ||
3385 | * | ||
3386 | * @param pid neighbour to look for | ||
3387 | * @return NULL if we do not have this peer as a neighbour | ||
3388 | */ | ||
3389 | static struct Neighbour * | ||
3390 | lookup_neighbour (const struct GNUNET_PeerIdentity *pid) | ||
3391 | { | ||
3392 | return GNUNET_CONTAINER_multipeermap_get (neighbours, pid); | ||
3393 | } | ||
3394 | |||
3395 | |||
3396 | /** | ||
3397 | * Lookup virtual link for peer @a pid. | ||
3398 | * | ||
3399 | * @param pid virtual link to look for | ||
3400 | * @return NULL if we do not have this peer as a virtual link | ||
3401 | */ | ||
3402 | static struct VirtualLink * | ||
3403 | lookup_virtual_link (const struct GNUNET_PeerIdentity *pid) | ||
3404 | { | ||
3405 | return GNUNET_CONTAINER_multipeermap_get (links, pid); | ||
3406 | } | ||
3407 | |||
3408 | |||
3409 | /** | ||
3410 | * Details about what to notify monitors about. | ||
3411 | */ | ||
3412 | struct MonitorEvent | ||
3413 | { | ||
3414 | /** | ||
3415 | * @deprecated To be discussed if we keep these... | ||
3416 | */ | ||
3417 | struct GNUNET_TIME_Absolute last_validation; | ||
3418 | struct GNUNET_TIME_Absolute valid_until; | ||
3419 | struct GNUNET_TIME_Absolute next_validation; | ||
3420 | |||
3421 | /** | ||
3422 | * Current round-trip time estimate. | ||
3423 | */ | ||
3424 | struct GNUNET_TIME_Relative rtt; | ||
3425 | |||
3426 | /** | ||
3427 | * Connection status. | ||
3428 | */ | ||
3429 | enum GNUNET_TRANSPORT_ConnectionStatus cs; | ||
3430 | |||
3431 | /** | ||
3432 | * Messages pending. | ||
3433 | */ | ||
3434 | uint32_t num_msg_pending; | ||
3435 | |||
3436 | /** | ||
3437 | * Bytes pending. | ||
3438 | */ | ||
3439 | uint32_t num_bytes_pending; | ||
3440 | }; | ||
3441 | |||
3442 | |||
3443 | /** | ||
3444 | * Free a @a dvh. Callers MAY want to check if this was the last path to the | ||
3445 | * `target`, and if so call #free_dv_route to also free the associated DV | ||
3446 | * entry in #dv_routes (if not, the associated scheduler job should eventually | ||
3447 | * take care of it). | ||
3448 | * | ||
3449 | * @param dvh hop to free | ||
3450 | */ | ||
3451 | static void | ||
3452 | free_distance_vector_hop (struct DistanceVectorHop *dvh) | ||
3453 | { | ||
3454 | struct Neighbour *n = dvh->next_hop; | ||
3455 | struct DistanceVector *dv = dvh->dv; | ||
3456 | struct PendingAcknowledgement *pa; | ||
3457 | |||
3458 | while (NULL != (pa = dvh->pa_head)) | ||
3459 | { | ||
3460 | GNUNET_CONTAINER_MDLL_remove (dvh, dvh->pa_head, dvh->pa_tail, pa); | ||
3461 | pa->dvh = NULL; | ||
3462 | } | ||
3463 | GNUNET_CONTAINER_MDLL_remove (neighbour, n->dv_head, n->dv_tail, dvh); | ||
3464 | GNUNET_CONTAINER_MDLL_remove (dv, dv->dv_head, dv->dv_tail, dvh); | ||
3465 | GNUNET_free (dvh); | ||
3466 | } | ||
3467 | |||
3468 | |||
3469 | /** | ||
3470 | * Task run to check whether the hops of the @a cls still | ||
3471 | * are validated, or if we need to core about disconnection. | ||
3472 | * | ||
3473 | * @param cls a `struct VirtualLink` | ||
3474 | */ | ||
3475 | static void | ||
3476 | check_link_down (void *cls); | ||
3477 | |||
3478 | |||
3479 | /** | ||
3480 | * Send message to CORE clients that we lost a connection. | ||
3481 | * | ||
3482 | * @param pid peer the connection was for | ||
3483 | */ | ||
3484 | static void | ||
3485 | cores_send_disconnect_info (const struct GNUNET_PeerIdentity *pid) | ||
3486 | { | ||
3487 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3488 | "Informing CORE clients about disconnect from %s\n", | ||
3489 | GNUNET_i2s (pid)); | ||
3490 | for (struct TransportClient *tc = clients_head; NULL != tc; tc = tc->next) | ||
3491 | { | ||
3492 | struct GNUNET_MQ_Envelope *env; | ||
3493 | struct DisconnectInfoMessage *dim; | ||
3494 | |||
3495 | if (CT_CORE != tc->type) | ||
3496 | continue; | ||
3497 | env = GNUNET_MQ_msg (dim, GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT); | ||
3498 | dim->peer = *pid; | ||
3499 | GNUNET_MQ_send (tc->mq, env); | ||
3500 | } | ||
3501 | } | ||
3502 | |||
3503 | |||
3504 | /** | ||
3505 | * Free entry in #dv_routes. First frees all hops to the target, and | ||
3506 | * if there are no entries left, frees @a dv as well. | ||
3507 | * | ||
3508 | * @param dv route to free | ||
3509 | */ | ||
3510 | static void | ||
3511 | free_dv_route (struct DistanceVector *dv) | ||
3512 | { | ||
3513 | struct DistanceVectorHop *dvh; | ||
3514 | |||
3515 | while (NULL != (dvh = dv->dv_head)) | ||
3516 | free_distance_vector_hop (dvh); | ||
3517 | if (NULL == dv->dv_head) | ||
3518 | { | ||
3519 | struct VirtualLink *vl; | ||
3520 | |||
3521 | GNUNET_assert ( | ||
3522 | GNUNET_YES == | ||
3523 | GNUNET_CONTAINER_multipeermap_remove (dv_routes, &dv->target, dv)); | ||
3524 | if (NULL != (vl = dv->vl)) | ||
3525 | { | ||
3526 | GNUNET_assert (dv == vl->dv); | ||
3527 | vl->dv = NULL; | ||
3528 | if (NULL == vl->n) | ||
3529 | { | ||
3530 | cores_send_disconnect_info (&dv->target); | ||
3531 | free_virtual_link (vl); | ||
3532 | } | ||
3533 | else | ||
3534 | { | ||
3535 | GNUNET_SCHEDULER_cancel (vl->visibility_task); | ||
3536 | vl->visibility_task = GNUNET_SCHEDULER_add_now (&check_link_down, vl); | ||
3537 | } | ||
3538 | dv->vl = NULL; | ||
3539 | } | ||
3540 | |||
3541 | if (NULL != dv->timeout_task) | ||
3542 | { | ||
3543 | GNUNET_SCHEDULER_cancel (dv->timeout_task); | ||
3544 | dv->timeout_task = NULL; | ||
3545 | } | ||
3546 | GNUNET_free (dv->km); | ||
3547 | GNUNET_free (dv); | ||
3548 | } | ||
3549 | } | ||
3550 | |||
3551 | |||
3552 | /** | ||
3553 | * Notify monitor @a tc about an event. That @a tc | ||
3554 | * cares about the event has already been checked. | ||
3555 | * | ||
3556 | * Send @a tc information in @a me about a @a peer's status with | ||
3557 | * respect to some @a address to all monitors that care. | ||
3558 | * | ||
3559 | * @param tc monitor to inform | ||
3560 | * @param peer peer the information is about | ||
3561 | * @param address address the information is about | ||
3562 | * @param nt network type associated with @a address | ||
3563 | * @param me detailed information to transmit | ||
3564 | */ | ||
3565 | static void | ||
3566 | notify_monitor (struct TransportClient *tc, | ||
3567 | const struct GNUNET_PeerIdentity *peer, | ||
3568 | const char *address, | ||
3569 | enum GNUNET_NetworkType nt, | ||
3570 | const struct MonitorEvent *me) | ||
3571 | { | ||
3572 | struct GNUNET_MQ_Envelope *env; | ||
3573 | struct GNUNET_TRANSPORT_MonitorData *md; | ||
3574 | size_t addr_len = strlen (address) + 1; | ||
3575 | |||
3576 | env = GNUNET_MQ_msg_extra (md, | ||
3577 | addr_len, | ||
3578 | GNUNET_MESSAGE_TYPE_TRANSPORT_MONITOR_DATA); | ||
3579 | md->nt = htonl ((uint32_t) nt); | ||
3580 | md->peer = *peer; | ||
3581 | md->last_validation = GNUNET_TIME_absolute_hton (me->last_validation); | ||
3582 | md->valid_until = GNUNET_TIME_absolute_hton (me->valid_until); | ||
3583 | md->next_validation = GNUNET_TIME_absolute_hton (me->next_validation); | ||
3584 | md->rtt = GNUNET_TIME_relative_hton (me->rtt); | ||
3585 | md->cs = htonl ((uint32_t) me->cs); | ||
3586 | md->num_msg_pending = htonl (me->num_msg_pending); | ||
3587 | md->num_bytes_pending = htonl (me->num_bytes_pending); | ||
3588 | memcpy (&md[1], address, addr_len); | ||
3589 | GNUNET_MQ_send (tc->mq, env); | ||
3590 | } | ||
3591 | |||
3592 | |||
3593 | /** | ||
3594 | * Send information in @a me about a @a peer's status with respect | ||
3595 | * to some @a address to all monitors that care. | ||
3596 | * | ||
3597 | * @param peer peer the information is about | ||
3598 | * @param address address the information is about | ||
3599 | * @param nt network type associated with @a address | ||
3600 | * @param me detailed information to transmit | ||
3601 | */ | ||
3602 | static void | ||
3603 | notify_monitors (const struct GNUNET_PeerIdentity *peer, | ||
3604 | const char *address, | ||
3605 | enum GNUNET_NetworkType nt, | ||
3606 | const struct MonitorEvent *me) | ||
3607 | { | ||
3608 | for (struct TransportClient *tc = clients_head; NULL != tc; tc = tc->next) | ||
3609 | { | ||
3610 | if (CT_MONITOR != tc->type) | ||
3611 | continue; | ||
3612 | if (tc->details.monitor.one_shot) | ||
3613 | continue; | ||
3614 | if ((GNUNET_NO == GNUNET_is_zero (&tc->details.monitor.peer)) && | ||
3615 | (0 != GNUNET_memcmp (&tc->details.monitor.peer, peer))) | ||
3616 | continue; | ||
3617 | notify_monitor (tc, peer, address, nt, me); | ||
3618 | } | ||
3619 | } | ||
3620 | |||
3621 | |||
3622 | /** | ||
3623 | * Called whenever a client connects. Allocates our | ||
3624 | * data structures associated with that client. | ||
3625 | * | ||
3626 | * @param cls closure, NULL | ||
3627 | * @param client identification of the client | ||
3628 | * @param mq message queue for the client | ||
3629 | * @return our `struct TransportClient` | ||
3630 | */ | ||
3631 | static void * | ||
3632 | client_connect_cb (void *cls, | ||
3633 | struct GNUNET_SERVICE_Client *client, | ||
3634 | struct GNUNET_MQ_Handle *mq) | ||
3635 | { | ||
3636 | struct TransportClient *tc; | ||
3637 | |||
3638 | (void) cls; | ||
3639 | tc = GNUNET_new (struct TransportClient); | ||
3640 | tc->client = client; | ||
3641 | tc->mq = mq; | ||
3642 | GNUNET_CONTAINER_DLL_insert (clients_head, clients_tail, tc); | ||
3643 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3644 | "Client %p of type %u connected\n", | ||
3645 | tc, | ||
3646 | tc->type); | ||
3647 | return tc; | ||
3648 | } | ||
3649 | |||
3650 | |||
3651 | static enum GNUNET_GenericReturnValue | ||
3652 | remove_global_addresses (void *cls, | ||
3653 | const struct GNUNET_PeerIdentity *pid, | ||
3654 | void *value) | ||
3655 | { | ||
3656 | (void) cls; | ||
3657 | struct TransportGlobalNattedAddress *tgna = value; | ||
3658 | |||
3659 | GNUNET_free (tgna); | ||
3660 | |||
3661 | return GNUNET_OK; | ||
3662 | } | ||
3663 | |||
3664 | |||
3665 | /** | ||
3666 | * Release memory used by @a neighbour. | ||
3667 | * | ||
3668 | * @param neighbour neighbour entry to free | ||
3669 | */ | ||
3670 | static void | ||
3671 | free_neighbour (struct Neighbour *neighbour) | ||
3672 | { | ||
3673 | struct DistanceVectorHop *dvh; | ||
3674 | struct VirtualLink *vl; | ||
3675 | |||
3676 | GNUNET_assert (NULL == neighbour->queue_head); | ||
3677 | GNUNET_assert (GNUNET_YES == | ||
3678 | GNUNET_CONTAINER_multipeermap_remove (neighbours, | ||
3679 | &neighbour->pid, | ||
3680 | neighbour)); | ||
3681 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3682 | "Freeing neighbour\n"); | ||
3683 | GNUNET_CONTAINER_multipeermap_iterate (neighbour->natted_addresses, | ||
3684 | &remove_global_addresses, | ||
3685 | NULL); | ||
3686 | GNUNET_CONTAINER_multipeermap_destroy (neighbour->natted_addresses); | ||
3687 | while (NULL != (dvh = neighbour->dv_head)) | ||
3688 | { | ||
3689 | struct DistanceVector *dv = dvh->dv; | ||
3690 | |||
3691 | free_distance_vector_hop (dvh); | ||
3692 | if (NULL == dv->dv_head) | ||
3693 | free_dv_route (dv); | ||
3694 | } | ||
3695 | if (NULL != neighbour->get) | ||
3696 | { | ||
3697 | GNUNET_PEERSTORE_iteration_stop (neighbour->get); | ||
3698 | neighbour->get = NULL; | ||
3699 | } | ||
3700 | if (NULL != neighbour->sc) | ||
3701 | { | ||
3702 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3703 | "store cancel\n"); | ||
3704 | GNUNET_PEERSTORE_store_cancel (neighbour->sc); | ||
3705 | neighbour->sc = NULL; | ||
3706 | } | ||
3707 | if (NULL != (vl = neighbour->vl)) | ||
3708 | { | ||
3709 | GNUNET_assert (neighbour == vl->n); | ||
3710 | vl->n = NULL; | ||
3711 | if (NULL == vl->dv) | ||
3712 | { | ||
3713 | cores_send_disconnect_info (&vl->target); | ||
3714 | free_virtual_link (vl); | ||
3715 | } | ||
3716 | else | ||
3717 | { | ||
3718 | GNUNET_SCHEDULER_cancel (vl->visibility_task); | ||
3719 | vl->visibility_task = GNUNET_SCHEDULER_add_now (&check_link_down, vl); | ||
3720 | } | ||
3721 | neighbour->vl = NULL; | ||
3722 | } | ||
3723 | GNUNET_free (neighbour); | ||
3724 | } | ||
3725 | |||
3726 | |||
3727 | /** | ||
3728 | * Send message to CORE clients that we lost a connection. | ||
3729 | * | ||
3730 | * @param tc client to inform (must be CORE client) | ||
3731 | * @param pid peer the connection is for | ||
3732 | */ | ||
3733 | static void | ||
3734 | core_send_connect_info (struct TransportClient *tc, | ||
3735 | const struct GNUNET_PeerIdentity *pid) | ||
3736 | { | ||
3737 | struct GNUNET_MQ_Envelope *env; | ||
3738 | struct ConnectInfoMessage *cim; | ||
3739 | |||
3740 | GNUNET_assert (CT_CORE == tc->type); | ||
3741 | env = GNUNET_MQ_msg (cim, GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT); | ||
3742 | cim->id = *pid; | ||
3743 | GNUNET_MQ_send (tc->mq, env); | ||
3744 | } | ||
3745 | |||
3746 | |||
3747 | /** | ||
3748 | * Send message to CORE clients that we gained a connection | ||
3749 | * | ||
3750 | * @param pid peer the queue was for | ||
3751 | */ | ||
3752 | static void | ||
3753 | cores_send_connect_info (const struct GNUNET_PeerIdentity *pid) | ||
3754 | { | ||
3755 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3756 | "Informing CORE clients about connection to %s\n", | ||
3757 | GNUNET_i2s (pid)); | ||
3758 | for (struct TransportClient *tc = clients_head; NULL != tc; tc = tc->next) | ||
3759 | { | ||
3760 | if (CT_CORE != tc->type) | ||
3761 | continue; | ||
3762 | core_send_connect_info (tc, pid); | ||
3763 | } | ||
3764 | } | ||
3765 | |||
3766 | |||
3767 | /** | ||
3768 | * We believe we are ready to transmit a message on a queue. Gives the | ||
3769 | * message to the communicator for transmission (updating the tracker, | ||
3770 | * and re-scheduling itself if applicable). | ||
3771 | * | ||
3772 | * @param cls the `struct Queue` to process transmissions for | ||
3773 | */ | ||
3774 | static void | ||
3775 | transmit_on_queue (void *cls); | ||
3776 | |||
3777 | |||
3778 | /** | ||
3779 | * Check if the communicator has another queue with higher prio ready for sending. | ||
3780 | */ | ||
3781 | static unsigned int | ||
3782 | check_for_queue_with_higher_prio (struct Queue *queue, struct Queue *queue_head) | ||
3783 | { | ||
3784 | for (struct Queue *s = queue_head; NULL != s; | ||
3785 | s = s->next_client) | ||
3786 | { | ||
3787 | if (s->tc->details.communicator.address_prefix != | ||
3788 | queue->tc->details.communicator.address_prefix) | ||
3789 | { | ||
3790 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3791 | "queue address %s qid %u compare with queue: address %s qid %u\n", | ||
3792 | queue->address, | ||
3793 | queue->qid, | ||
3794 | s->address, | ||
3795 | s->qid); | ||
3796 | if ((s->priority > queue->priority) && (0 < s->q_capacity) && | ||
3797 | (QUEUE_LENGTH_LIMIT > s->queue_length) ) | ||
3798 | return GNUNET_YES; | ||
3799 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3800 | "Lower prio\n"); | ||
3801 | } | ||
3802 | } | ||
3803 | return GNUNET_NO; | ||
3804 | } | ||
3805 | |||
3806 | |||
3807 | /** | ||
3808 | * Called whenever something changed that might effect when we | ||
3809 | * try to do the next transmission on @a queue using #transmit_on_queue(). | ||
3810 | * | ||
3811 | * @param queue the queue to do scheduling for | ||
3812 | * @param p task priority to use, if @a queue is scheduled | ||
3813 | */ | ||
3814 | static void | ||
3815 | schedule_transmit_on_queue (struct GNUNET_TIME_Relative delay, | ||
3816 | struct Queue *queue, | ||
3817 | enum GNUNET_SCHEDULER_Priority p) | ||
3818 | { | ||
3819 | struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get (); | ||
3820 | |||
3821 | if (queue->validated_until.abs_value_us < now.abs_value_us) | ||
3822 | return; | ||
3823 | if (check_for_queue_with_higher_prio (queue, | ||
3824 | queue->tc->details.communicator. | ||
3825 | queue_head)) | ||
3826 | return; | ||
3827 | |||
3828 | if (queue->tc->details.communicator.total_queue_length >= | ||
3829 | COMMUNICATOR_TOTAL_QUEUE_LIMIT) | ||
3830 | { | ||
3831 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3832 | "Transmission on queue %s (QID %u) throttled due to communicator queue limit\n", | ||
3833 | queue->address, | ||
3834 | queue->qid); | ||
3835 | GNUNET_STATISTICS_update ( | ||
3836 | GST_stats, | ||
3837 | "# Transmission throttled due to communicator queue limit", | ||
3838 | 1, | ||
3839 | GNUNET_NO); | ||
3840 | queue->idle = GNUNET_NO; | ||
3841 | return; | ||
3842 | } | ||
3843 | if (queue->queue_length >= QUEUE_LENGTH_LIMIT) | ||
3844 | { | ||
3845 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3846 | "Transmission on queue %s (QID %u) throttled due to communicator queue length limit\n", | ||
3847 | queue->address, | ||
3848 | queue->qid); | ||
3849 | GNUNET_STATISTICS_update (GST_stats, | ||
3850 | "# Transmission throttled due to queue queue limit", | ||
3851 | 1, | ||
3852 | GNUNET_NO); | ||
3853 | queue->idle = GNUNET_NO; | ||
3854 | return; | ||
3855 | } | ||
3856 | if (0 == queue->q_capacity) | ||
3857 | { | ||
3858 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3859 | "Transmission on queue %s (QID %u) throttled due to communicator message has capacity %" | ||
3860 | PRIu64 ".\n", | ||
3861 | queue->address, | ||
3862 | queue->qid, | ||
3863 | queue->q_capacity); | ||
3864 | GNUNET_STATISTICS_update (GST_stats, | ||
3865 | "# Transmission throttled due to message queue capacity", | ||
3866 | 1, | ||
3867 | GNUNET_NO); | ||
3868 | queue->idle = GNUNET_NO; | ||
3869 | return; | ||
3870 | } | ||
3871 | /* queue might indeed be ready, schedule it */ | ||
3872 | if (NULL != queue->transmit_task) | ||
3873 | GNUNET_SCHEDULER_cancel (queue->transmit_task); | ||
3874 | queue->transmit_task = | ||
3875 | GNUNET_SCHEDULER_add_delayed_with_priority (delay, p, &transmit_on_queue, | ||
3876 | queue); | ||
3877 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3878 | "Considering transmission on queue `%s' QID %llu to %s\n", | ||
3879 | queue->address, | ||
3880 | (unsigned long long) queue->qid, | ||
3881 | GNUNET_i2s (&queue->neighbour->pid)); | ||
3882 | } | ||
3883 | |||
3884 | |||
3885 | /** | ||
3886 | * Task run to check whether the hops of the @a cls still | ||
3887 | * are validated, or if we need to core about disconnection. | ||
3888 | * | ||
3889 | * @param cls a `struct VirtualLink` | ||
3890 | */ | ||
3891 | static void | ||
3892 | check_link_down (void *cls) | ||
3893 | { | ||
3894 | struct VirtualLink *vl = cls; | ||
3895 | struct DistanceVector *dv = vl->dv; | ||
3896 | struct Neighbour *n = vl->n; | ||
3897 | struct GNUNET_TIME_Absolute dvh_timeout; | ||
3898 | struct GNUNET_TIME_Absolute q_timeout; | ||
3899 | |||
3900 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3901 | "Checking if link is down\n"); | ||
3902 | vl->visibility_task = NULL; | ||
3903 | dvh_timeout = GNUNET_TIME_UNIT_ZERO_ABS; | ||
3904 | if (NULL != dv) | ||
3905 | { | ||
3906 | for (struct DistanceVectorHop *pos = dv->dv_head; NULL != pos; | ||
3907 | pos = pos->next_dv) | ||
3908 | dvh_timeout = GNUNET_TIME_absolute_max (dvh_timeout, | ||
3909 | pos->path_valid_until); | ||
3910 | if (0 == GNUNET_TIME_absolute_get_remaining (dvh_timeout).rel_value_us) | ||
3911 | { | ||
3912 | vl->dv->vl = NULL; | ||
3913 | vl->dv = NULL; | ||
3914 | } | ||
3915 | } | ||
3916 | q_timeout = GNUNET_TIME_UNIT_ZERO_ABS; | ||
3917 | for (struct Queue *q = n->queue_head; NULL != q; q = q->next_neighbour) | ||
3918 | q_timeout = GNUNET_TIME_absolute_max (q_timeout, q->validated_until); | ||
3919 | if (0 == GNUNET_TIME_absolute_get_remaining (q_timeout).rel_value_us) | ||
3920 | { | ||
3921 | vl->n->vl = NULL; | ||
3922 | vl->n = NULL; | ||
3923 | } | ||
3924 | if ((NULL == vl->n) && (NULL == vl->dv)) | ||
3925 | { | ||
3926 | cores_send_disconnect_info (&vl->target); | ||
3927 | free_virtual_link (vl); | ||
3928 | return; | ||
3929 | } | ||
3930 | vl->visibility_task = | ||
3931 | GNUNET_SCHEDULER_add_at (GNUNET_TIME_absolute_max (q_timeout, dvh_timeout), | ||
3932 | &check_link_down, | ||
3933 | vl); | ||
3934 | } | ||
3935 | |||
3936 | |||
3937 | /** | ||
3938 | * Free @a queue. | ||
3939 | * | ||
3940 | * @param queue the queue to free | ||
3941 | */ | ||
3942 | static void | ||
3943 | free_queue (struct Queue *queue) | ||
3944 | { | ||
3945 | struct Neighbour *neighbour = queue->neighbour; | ||
3946 | struct TransportClient *tc = queue->tc; | ||
3947 | struct MonitorEvent me = { .cs = GNUNET_TRANSPORT_CS_DOWN, | ||
3948 | .rtt = GNUNET_TIME_UNIT_FOREVER_REL }; | ||
3949 | struct QueueEntry *qe; | ||
3950 | int maxxed; | ||
3951 | struct PendingAcknowledgement *pa; | ||
3952 | struct VirtualLink *vl; | ||
3953 | |||
3954 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3955 | "Cleaning up queue %u\n", queue->qid); | ||
3956 | if (NULL != queue->mo) | ||
3957 | { | ||
3958 | GNUNET_PEERSTORE_monitor_stop (queue->mo); | ||
3959 | queue->mo = NULL; | ||
3960 | } | ||
3961 | if (NULL != queue->transmit_task) | ||
3962 | { | ||
3963 | GNUNET_SCHEDULER_cancel (queue->transmit_task); | ||
3964 | queue->transmit_task = NULL; | ||
3965 | } | ||
3966 | while (NULL != (pa = queue->pa_head)) | ||
3967 | { | ||
3968 | GNUNET_CONTAINER_MDLL_remove (queue, queue->pa_head, queue->pa_tail, pa); | ||
3969 | pa->queue = NULL; | ||
3970 | } | ||
3971 | |||
3972 | GNUNET_CONTAINER_MDLL_remove (neighbour, | ||
3973 | neighbour->queue_head, | ||
3974 | neighbour->queue_tail, | ||
3975 | queue); | ||
3976 | GNUNET_CONTAINER_MDLL_remove (client, | ||
3977 | tc->details.communicator.queue_head, | ||
3978 | tc->details.communicator.queue_tail, | ||
3979 | queue); | ||
3980 | maxxed = (COMMUNICATOR_TOTAL_QUEUE_LIMIT <= | ||
3981 | tc->details.communicator.total_queue_length); | ||
3982 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
3983 | "Cleaning up queue with length %u\n", | ||
3984 | queue->queue_length); | ||
3985 | while (NULL != (qe = queue->queue_head)) | ||
3986 | { | ||
3987 | GNUNET_CONTAINER_DLL_remove (queue->queue_head, queue->queue_tail, qe); | ||
3988 | queue->queue_length--; | ||
3989 | tc->details.communicator.total_queue_length--; | ||
3990 | if (NULL != qe->pm) | ||
3991 | { | ||
3992 | GNUNET_assert (qe == qe->pm->qe); | ||
3993 | qe->pm->qe = NULL; | ||
3994 | } | ||
3995 | GNUNET_free (qe); | ||
3996 | } | ||
3997 | GNUNET_assert (0 == queue->queue_length); | ||
3998 | if ((maxxed) && (COMMUNICATOR_TOTAL_QUEUE_LIMIT > | ||
3999 | tc->details.communicator.total_queue_length)) | ||
4000 | { | ||
4001 | /* Communicator dropped below threshold, resume all _other_ queues */ | ||
4002 | GNUNET_STATISTICS_update ( | ||
4003 | GST_stats, | ||
4004 | "# Transmission throttled due to communicator queue limit", | ||
4005 | -1, | ||
4006 | GNUNET_NO); | ||
4007 | for (struct Queue *s = tc->details.communicator.queue_head; NULL != s; | ||
4008 | s = s->next_client) | ||
4009 | schedule_transmit_on_queue (GNUNET_TIME_UNIT_ZERO, | ||
4010 | s, | ||
4011 | GNUNET_SCHEDULER_PRIORITY_DEFAULT); | ||
4012 | } | ||
4013 | notify_monitors (&neighbour->pid, queue->address, queue->nt, &me); | ||
4014 | GNUNET_free (queue); | ||
4015 | |||
4016 | vl = lookup_virtual_link (&neighbour->pid); | ||
4017 | if ((NULL != vl) && (neighbour == vl->n)) | ||
4018 | { | ||
4019 | GNUNET_SCHEDULER_cancel (vl->visibility_task); | ||
4020 | check_link_down (vl); | ||
4021 | } | ||
4022 | if (NULL == neighbour->queue_head) | ||
4023 | { | ||
4024 | free_neighbour (neighbour); | ||
4025 | } | ||
4026 | } | ||
4027 | |||
4028 | |||
4029 | /** | ||
4030 | * Free @a ale | ||
4031 | * | ||
4032 | * @param ale address list entry to free | ||
4033 | */ | ||
4034 | static void | ||
4035 | free_address_list_entry (struct AddressListEntry *ale) | ||
4036 | { | ||
4037 | struct TransportClient *tc = ale->tc; | ||
4038 | |||
4039 | GNUNET_CONTAINER_DLL_remove (tc->details.communicator.addr_head, | ||
4040 | tc->details.communicator.addr_tail, | ||
4041 | ale); | ||
4042 | if (NULL != ale->sc) | ||
4043 | { | ||
4044 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4045 | "store cancel\n"); | ||
4046 | GNUNET_PEERSTORE_store_cancel (ale->sc); | ||
4047 | ale->sc = NULL; | ||
4048 | } | ||
4049 | if (NULL != ale->st) | ||
4050 | { | ||
4051 | GNUNET_SCHEDULER_cancel (ale->st); | ||
4052 | ale->st = NULL; | ||
4053 | } | ||
4054 | if (NULL != ale->signed_address) | ||
4055 | GNUNET_free (ale->signed_address); | ||
4056 | GNUNET_free (ale); | ||
4057 | } | ||
4058 | |||
4059 | |||
4060 | /** | ||
4061 | * Stop the peer request in @a value. | ||
4062 | * | ||
4063 | * @param cls a `struct TransportClient` that no longer makes the request | ||
4064 | * @param pid the peer's identity | ||
4065 | * @param value a `struct PeerRequest` | ||
4066 | * @return #GNUNET_YES (always) | ||
4067 | */ | ||
4068 | static int | ||
4069 | stop_peer_request (void *cls, | ||
4070 | const struct GNUNET_PeerIdentity *pid, | ||
4071 | void *value) | ||
4072 | { | ||
4073 | struct TransportClient *tc = cls; | ||
4074 | struct PeerRequest *pr = value; | ||
4075 | |||
4076 | if (NULL != pr->nc) | ||
4077 | GNUNET_PEERSTORE_monitor_stop (pr->nc); | ||
4078 | pr->nc = NULL; | ||
4079 | GNUNET_assert ( | ||
4080 | GNUNET_YES == | ||
4081 | GNUNET_CONTAINER_multipeermap_remove (tc->details.application.requests, | ||
4082 | pid, | ||
4083 | pr)); | ||
4084 | GNUNET_free (pr); | ||
4085 | |||
4086 | return GNUNET_OK; | ||
4087 | } | ||
4088 | |||
4089 | |||
4090 | static void | ||
4091 | do_shutdown (void *cls); | ||
4092 | |||
4093 | /** | ||
4094 | * Called whenever a client is disconnected. Frees our | ||
4095 | * resources associated with that client. | ||
4096 | * | ||
4097 | * @param cls closure, NULL | ||
4098 | * @param client identification of the client | ||
4099 | * @param app_ctx our `struct TransportClient` | ||
4100 | */ | ||
4101 | static void | ||
4102 | client_disconnect_cb (void *cls, | ||
4103 | struct GNUNET_SERVICE_Client *client, | ||
4104 | void *app_ctx) | ||
4105 | { | ||
4106 | struct TransportClient *tc = app_ctx; | ||
4107 | |||
4108 | (void) cls; | ||
4109 | (void) client; | ||
4110 | GNUNET_CONTAINER_DLL_remove (clients_head, clients_tail, tc); | ||
4111 | switch (tc->type) | ||
4112 | { | ||
4113 | case CT_NONE: | ||
4114 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4115 | "Unknown Client %p disconnected, cleaning up.\n", | ||
4116 | tc); | ||
4117 | break; | ||
4118 | |||
4119 | case CT_CORE: { | ||
4120 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4121 | "CORE Client %p disconnected, cleaning up.\n", | ||
4122 | tc); | ||
4123 | |||
4124 | struct PendingMessage *pm; | ||
4125 | |||
4126 | while (NULL != (pm = tc->details.core.pending_msg_head)) | ||
4127 | { | ||
4128 | GNUNET_CONTAINER_MDLL_remove (client, | ||
4129 | tc->details.core.pending_msg_head, | ||
4130 | tc->details.core.pending_msg_tail, | ||
4131 | pm); | ||
4132 | pm->client = NULL; | ||
4133 | } | ||
4134 | } | ||
4135 | break; | ||
4136 | |||
4137 | case CT_MONITOR: | ||
4138 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4139 | "MONITOR Client %p disconnected, cleaning up.\n", | ||
4140 | tc); | ||
4141 | |||
4142 | break; | ||
4143 | |||
4144 | case CT_COMMUNICATOR: { | ||
4145 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4146 | "COMMUNICATOR Client %p disconnected, cleaning up.\n", | ||
4147 | tc); | ||
4148 | |||
4149 | struct Queue *q; | ||
4150 | struct AddressListEntry *ale; | ||
4151 | |||
4152 | if (NULL != tc->details.communicator.free_queue_entry_task) | ||
4153 | GNUNET_SCHEDULER_cancel ( | ||
4154 | tc->details.communicator.free_queue_entry_task); | ||
4155 | while (NULL != (q = tc->details.communicator.queue_head)) | ||
4156 | free_queue (q); | ||
4157 | while (NULL != (ale = tc->details.communicator.addr_head)) | ||
4158 | free_address_list_entry (ale); | ||
4159 | GNUNET_free (tc->details.communicator.address_prefix); | ||
4160 | } | ||
4161 | break; | ||
4162 | |||
4163 | case CT_APPLICATION: | ||
4164 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4165 | "APPLICATION Client %p disconnected, cleaning up.\n", | ||
4166 | tc); | ||
4167 | |||
4168 | GNUNET_CONTAINER_multipeermap_iterate (tc->details.application.requests, | ||
4169 | &stop_peer_request, | ||
4170 | tc); | ||
4171 | GNUNET_CONTAINER_multipeermap_destroy (tc->details.application.requests); | ||
4172 | break; | ||
4173 | } | ||
4174 | GNUNET_free (tc); | ||
4175 | if ((GNUNET_YES == in_shutdown) && (NULL == clients_head)) | ||
4176 | { | ||
4177 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
4178 | "Our last client disconnected\n"); | ||
4179 | do_shutdown (cls); | ||
4180 | } | ||
4181 | } | ||
4182 | |||
4183 | |||
4184 | /** | ||
4185 | * Iterator telling new CORE client about all existing | ||
4186 | * connections to peers. | ||
4187 | * | ||
4188 | * @param cls the new `struct TransportClient` | ||
4189 | * @param pid a connected peer | ||
4190 | * @param value the `struct Neighbour` with more information | ||
4191 | * @return #GNUNET_OK (continue to iterate) | ||
4192 | */ | ||
4193 | static int | ||
4194 | notify_client_connect_info (void *cls, | ||
4195 | const struct GNUNET_PeerIdentity *pid, | ||
4196 | void *value) | ||
4197 | { | ||
4198 | struct TransportClient *tc = cls; | ||
4199 | struct VirtualLink *vl = value; | ||
4200 | |||
4201 | if ((NULL == vl) || (GNUNET_NO == vl->confirmed)) | ||
4202 | return GNUNET_OK; | ||
4203 | |||
4204 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4205 | "Telling new CORE client about existing connection to %s\n", | ||
4206 | GNUNET_i2s (pid)); | ||
4207 | core_send_connect_info (tc, pid); | ||
4208 | return GNUNET_OK; | ||
4209 | } | ||
4210 | |||
4211 | |||
4212 | /** | ||
4213 | * Send ACK to communicator (if requested) and free @a cmc. | ||
4214 | * | ||
4215 | * @param cmc context for which we are done handling the message | ||
4216 | */ | ||
4217 | static void | ||
4218 | finish_cmc_handling_with_continue (struct CommunicatorMessageContext *cmc, | ||
4219 | unsigned | ||
4220 | int free_cmc); | ||
4221 | |||
4222 | static enum GNUNET_GenericReturnValue | ||
4223 | resume_communicators (void *cls, | ||
4224 | const struct GNUNET_PeerIdentity *pid, | ||
4225 | void *value) | ||
4226 | { | ||
4227 | struct VirtualLink *vl = value; | ||
4228 | struct CommunicatorMessageContext *cmc; | ||
4229 | |||
4230 | /* resume communicators */ | ||
4231 | while (NULL != (cmc = vl->cmc_tail)) | ||
4232 | { | ||
4233 | GNUNET_CONTAINER_DLL_remove (vl->cmc_head, vl->cmc_tail, cmc); | ||
4234 | if (GNUNET_NO == cmc->continue_send) | ||
4235 | finish_cmc_handling_with_continue (cmc, GNUNET_YES); | ||
4236 | } | ||
4237 | return GNUNET_OK; | ||
4238 | } | ||
4239 | |||
4240 | |||
4241 | /** | ||
4242 | * Initialize a "CORE" client. We got a start message from this | ||
4243 | * client, so add it to the list of clients for broadcasting of | ||
4244 | * inbound messages. | ||
4245 | * | ||
4246 | * @param cls the client | ||
4247 | * @param start the start message that was sent | ||
4248 | */ | ||
4249 | static void | ||
4250 | handle_client_start (void *cls, const struct StartMessage *start) | ||
4251 | { | ||
4252 | struct TransportClient *tc = cls; | ||
4253 | uint32_t options; | ||
4254 | |||
4255 | options = ntohl (start->options); | ||
4256 | if ((0 != (1 & options)) && | ||
4257 | (0 != GNUNET_memcmp (&start->self, &GST_my_identity))) | ||
4258 | { | ||
4259 | /* client thinks this is a different peer, reject */ | ||
4260 | GNUNET_break (0); | ||
4261 | GNUNET_SERVICE_client_drop (tc->client); | ||
4262 | return; | ||
4263 | } | ||
4264 | if (CT_NONE != tc->type) | ||
4265 | { | ||
4266 | GNUNET_break (0); | ||
4267 | GNUNET_SERVICE_client_drop (tc->client); | ||
4268 | return; | ||
4269 | } | ||
4270 | tc->type = CT_CORE; | ||
4271 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4272 | "New CORE client with PID %s registered\n", | ||
4273 | GNUNET_i2s (&start->self)); | ||
4274 | GNUNET_CONTAINER_multipeermap_iterate (links, | ||
4275 | ¬ify_client_connect_info, | ||
4276 | tc); | ||
4277 | GNUNET_CONTAINER_multipeermap_iterate (links, | ||
4278 | &resume_communicators, | ||
4279 | NULL); | ||
4280 | GNUNET_SERVICE_client_continue (tc->client); | ||
4281 | } | ||
4282 | |||
4283 | |||
4284 | /** | ||
4285 | * Client asked for transmission to a peer. Process the request. | ||
4286 | * | ||
4287 | * @param cls the client | ||
4288 | * @param obm the send message that was sent | ||
4289 | */ | ||
4290 | static int | ||
4291 | check_client_send (void *cls, const struct OutboundMessage *obm) | ||
4292 | { | ||
4293 | struct TransportClient *tc = cls; | ||
4294 | uint16_t size; | ||
4295 | const struct GNUNET_MessageHeader *obmm; | ||
4296 | |||
4297 | if (CT_CORE != tc->type) | ||
4298 | { | ||
4299 | GNUNET_break (0); | ||
4300 | return GNUNET_SYSERR; | ||
4301 | } | ||
4302 | size = ntohs (obm->header.size) - sizeof(struct OutboundMessage); | ||
4303 | if (size < sizeof(struct GNUNET_MessageHeader)) | ||
4304 | { | ||
4305 | GNUNET_break (0); | ||
4306 | return GNUNET_SYSERR; | ||
4307 | } | ||
4308 | obmm = (const struct GNUNET_MessageHeader *) &obm[1]; | ||
4309 | if (size != ntohs (obmm->size)) | ||
4310 | { | ||
4311 | GNUNET_break (0); | ||
4312 | return GNUNET_SYSERR; | ||
4313 | } | ||
4314 | return GNUNET_OK; | ||
4315 | } | ||
4316 | |||
4317 | |||
4318 | /** | ||
4319 | * Send a response to the @a pm that we have processed a "send" | ||
4320 | * request. Sends a confirmation to the "core" client responsible for | ||
4321 | * the original request and free's @a pm. | ||
4322 | * | ||
4323 | * @param pm handle to the original pending message | ||
4324 | */ | ||
4325 | static void | ||
4326 | client_send_response (struct PendingMessage *pm) | ||
4327 | { | ||
4328 | struct TransportClient *tc = pm->client; | ||
4329 | struct VirtualLink *vl = pm->vl; | ||
4330 | |||
4331 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4332 | "client send response\n"); | ||
4333 | if (NULL != tc) | ||
4334 | { | ||
4335 | struct GNUNET_MQ_Envelope *env; | ||
4336 | struct SendOkMessage *so_msg; | ||
4337 | |||
4338 | env = GNUNET_MQ_msg (so_msg, GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK); | ||
4339 | so_msg->peer = vl->target; | ||
4340 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4341 | "Confirming transmission of <%" PRIu64 "> to %s\n", | ||
4342 | pm->logging_uuid, | ||
4343 | GNUNET_i2s (&vl->target)); | ||
4344 | GNUNET_MQ_send (tc->mq, env); | ||
4345 | } | ||
4346 | free_pending_message (pm); | ||
4347 | } | ||
4348 | |||
4349 | |||
4350 | /** | ||
4351 | * Pick @a hops_array_length random DV paths satisfying @a options | ||
4352 | * | ||
4353 | * @param dv data structure to pick paths from | ||
4354 | * @param options constraints to satisfy | ||
4355 | * @param[out] hops_array set to the result | ||
4356 | * @param hops_array_length length of the @a hops_array | ||
4357 | * @return number of entries set in @a hops_array | ||
4358 | */ | ||
4359 | static unsigned int | ||
4360 | pick_random_dv_hops (const struct DistanceVector *dv, | ||
4361 | enum RouteMessageOptions options, | ||
4362 | struct DistanceVectorHop **hops_array, | ||
4363 | unsigned int hops_array_length) | ||
4364 | { | ||
4365 | uint64_t choices[hops_array_length]; | ||
4366 | uint64_t num_dv; | ||
4367 | unsigned int dv_count; | ||
4368 | |||
4369 | /* Pick random vectors, but weighted by distance, giving more weight | ||
4370 | to shorter vectors */ | ||
4371 | num_dv = 0; | ||
4372 | dv_count = 0; | ||
4373 | for (struct DistanceVectorHop *pos = dv->dv_head; NULL != pos; | ||
4374 | pos = pos->next_dv) | ||
4375 | { | ||
4376 | if ((0 == (options & RMO_UNCONFIRMED_ALLOWED)) && | ||
4377 | (GNUNET_TIME_absolute_get_remaining (pos->path_valid_until) | ||
4378 | .rel_value_us == 0)) | ||
4379 | continue; /* pos unconfirmed and confirmed required */ | ||
4380 | num_dv += MAX_DV_HOPS_ALLOWED - pos->distance; | ||
4381 | dv_count++; | ||
4382 | } | ||
4383 | if (0 == dv_count) | ||
4384 | return 0; | ||
4385 | if (dv_count <= hops_array_length) | ||
4386 | { | ||
4387 | dv_count = 0; | ||
4388 | for (struct DistanceVectorHop *pos = dv->dv_head; NULL != pos; | ||
4389 | pos = pos->next_dv) | ||
4390 | hops_array[dv_count++] = pos; | ||
4391 | return dv_count; | ||
4392 | } | ||
4393 | for (unsigned int i = 0; i < hops_array_length; i++) | ||
4394 | { | ||
4395 | int ok = GNUNET_NO; | ||
4396 | while (GNUNET_NO == ok) | ||
4397 | { | ||
4398 | choices[i] = | ||
4399 | GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK, num_dv); | ||
4400 | ok = GNUNET_YES; | ||
4401 | for (unsigned int j = 0; j < i; j++) | ||
4402 | if (choices[i] == choices[j]) | ||
4403 | { | ||
4404 | ok = GNUNET_NO; | ||
4405 | break; | ||
4406 | } | ||
4407 | } | ||
4408 | } | ||
4409 | dv_count = 0; | ||
4410 | num_dv = 0; | ||
4411 | for (struct DistanceVectorHop *pos = dv->dv_head; NULL != pos; | ||
4412 | pos = pos->next_dv) | ||
4413 | { | ||
4414 | uint32_t delta = MAX_DV_HOPS_ALLOWED - pos->distance; | ||
4415 | |||
4416 | if ((0 == (options & RMO_UNCONFIRMED_ALLOWED)) && | ||
4417 | (GNUNET_TIME_absolute_get_remaining (pos->path_valid_until) | ||
4418 | .rel_value_us == 0)) | ||
4419 | continue; /* pos unconfirmed and confirmed required */ | ||
4420 | for (unsigned int i = 0; i < hops_array_length; i++) | ||
4421 | if ((num_dv <= choices[i]) && (num_dv + delta > choices[i])) | ||
4422 | hops_array[dv_count++] = pos; | ||
4423 | num_dv += delta; | ||
4424 | } | ||
4425 | return dv_count; | ||
4426 | } | ||
4427 | |||
4428 | |||
4429 | /** | ||
4430 | * Communicator started. Test message is well-formed. | ||
4431 | * | ||
4432 | * @param cls the client | ||
4433 | * @param cam the send message that was sent | ||
4434 | */ | ||
4435 | static int | ||
4436 | check_communicator_available ( | ||
4437 | void *cls, | ||
4438 | const struct GNUNET_TRANSPORT_CommunicatorAvailableMessage *cam) | ||
4439 | { | ||
4440 | struct TransportClient *tc = cls; | ||
4441 | uint16_t size; | ||
4442 | |||
4443 | if (CT_NONE != tc->type) | ||
4444 | { | ||
4445 | GNUNET_break (0); | ||
4446 | return GNUNET_SYSERR; | ||
4447 | } | ||
4448 | tc->type = CT_COMMUNICATOR; | ||
4449 | size = ntohs (cam->header.size) - sizeof(*cam); | ||
4450 | if (0 == size) | ||
4451 | return GNUNET_OK; /* receive-only communicator */ | ||
4452 | GNUNET_MQ_check_zero_termination (cam); | ||
4453 | return GNUNET_OK; | ||
4454 | } | ||
4455 | |||
4456 | |||
4457 | /** | ||
4458 | * Send ACK to communicator (if requested) and free @a cmc. | ||
4459 | * | ||
4460 | * @param cmc context for which we are done handling the message | ||
4461 | */ | ||
4462 | static void | ||
4463 | finish_cmc_handling_with_continue (struct CommunicatorMessageContext *cmc, | ||
4464 | unsigned | ||
4465 | int free_cmc) | ||
4466 | { | ||
4467 | if (0 != ntohl (cmc->im.fc_on)) | ||
4468 | { | ||
4469 | /* send ACK when done to communicator for flow control! */ | ||
4470 | struct GNUNET_MQ_Envelope *env; | ||
4471 | struct GNUNET_TRANSPORT_IncomingMessageAck *ack; | ||
4472 | |||
4473 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4474 | "Acknowledge message with flow control id %" PRIu64 "\n", | ||
4475 | cmc->im.fc_id); | ||
4476 | env = GNUNET_MQ_msg (ack, GNUNET_MESSAGE_TYPE_TRANSPORT_INCOMING_MSG_ACK); | ||
4477 | ack->reserved = htonl (0); | ||
4478 | ack->fc_id = cmc->im.fc_id; | ||
4479 | ack->sender = cmc->im.neighbour_sender; | ||
4480 | GNUNET_MQ_send (cmc->tc->mq, env); | ||
4481 | } | ||
4482 | |||
4483 | GNUNET_SERVICE_client_continue (cmc->tc->client); | ||
4484 | |||
4485 | if (GNUNET_YES == free_cmc) | ||
4486 | { | ||
4487 | GNUNET_free (cmc); | ||
4488 | } | ||
4489 | } | ||
4490 | |||
4491 | |||
4492 | static void | ||
4493 | finish_cmc_handling (struct CommunicatorMessageContext *cmc) | ||
4494 | { | ||
4495 | finish_cmc_handling_with_continue (cmc, GNUNET_YES); | ||
4496 | } | ||
4497 | |||
4498 | |||
4499 | /** | ||
4500 | * Client confirms that it is done handling message(s) to a particular | ||
4501 | * peer. We may now provide more messages to CORE for this peer. | ||
4502 | * | ||
4503 | * Notifies the respective queues that more messages can now be received. | ||
4504 | * | ||
4505 | * @param cls the client | ||
4506 | * @param rom the message that was sent | ||
4507 | */ | ||
4508 | static void | ||
4509 | handle_client_recv_ok (void *cls, const struct RecvOkMessage *rom) | ||
4510 | { | ||
4511 | struct TransportClient *tc = cls; | ||
4512 | struct VirtualLink *vl; | ||
4513 | uint32_t delta; | ||
4514 | struct CommunicatorMessageContext *cmc; | ||
4515 | |||
4516 | if (CT_CORE != tc->type) | ||
4517 | { | ||
4518 | GNUNET_break (0); | ||
4519 | GNUNET_SERVICE_client_drop (tc->client); | ||
4520 | return; | ||
4521 | } | ||
4522 | vl = lookup_virtual_link (&rom->peer); | ||
4523 | if ((NULL == vl) || (GNUNET_NO == vl->confirmed)) | ||
4524 | { | ||
4525 | GNUNET_STATISTICS_update (GST_stats, | ||
4526 | "# RECV_OK dropped: virtual link unknown", | ||
4527 | 1, | ||
4528 | GNUNET_NO); | ||
4529 | GNUNET_SERVICE_client_continue (tc->client); | ||
4530 | return; | ||
4531 | } | ||
4532 | delta = ntohl (rom->increase_window_delta); | ||
4533 | vl->core_recv_window += delta; | ||
4534 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4535 | "CORE ack receiving message, increased CORE recv window to %d\n", | ||
4536 | vl->core_recv_window); | ||
4537 | GNUNET_SERVICE_client_continue (tc->client); | ||
4538 | if (vl->core_recv_window <= 0) | ||
4539 | return; | ||
4540 | /* resume communicators */ | ||
4541 | while (NULL != (cmc = vl->cmc_tail)) | ||
4542 | { | ||
4543 | GNUNET_CONTAINER_DLL_remove (vl->cmc_head, vl->cmc_tail, cmc); | ||
4544 | if (GNUNET_NO == cmc->continue_send) | ||
4545 | finish_cmc_handling_with_continue (cmc, GNUNET_YES); | ||
4546 | } | ||
4547 | } | ||
4548 | |||
4549 | |||
4550 | /** | ||
4551 | * Communicator started. Process the request. | ||
4552 | * | ||
4553 | * @param cls the client | ||
4554 | * @param cam the send message that was sent | ||
4555 | */ | ||
4556 | static void | ||
4557 | handle_communicator_available ( | ||
4558 | void *cls, | ||
4559 | const struct GNUNET_TRANSPORT_CommunicatorAvailableMessage *cam) | ||
4560 | { | ||
4561 | struct TransportClient *tc = cls; | ||
4562 | uint16_t size; | ||
4563 | |||
4564 | size = ntohs (cam->header.size) - sizeof(*cam); | ||
4565 | if (0 == size) | ||
4566 | { | ||
4567 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4568 | "Receive-only communicator connected\n"); | ||
4569 | return; /* receive-only communicator */ | ||
4570 | } | ||
4571 | tc->details.communicator.address_prefix = | ||
4572 | GNUNET_strdup ((const char *) &cam[1]); | ||
4573 | tc->details.communicator.cc = | ||
4574 | (enum GNUNET_TRANSPORT_CommunicatorCharacteristics) ntohl (cam->cc); | ||
4575 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4576 | "Communicator with prefix `%s' connected\n", | ||
4577 | tc->details.communicator.address_prefix); | ||
4578 | GNUNET_SERVICE_client_continue (tc->client); | ||
4579 | } | ||
4580 | |||
4581 | |||
4582 | /** | ||
4583 | * Communicator requests backchannel transmission. Check the request. | ||
4584 | * | ||
4585 | * @param cls the client | ||
4586 | * @param cb the send message that was sent | ||
4587 | * @return #GNUNET_OK if message is well-formed | ||
4588 | */ | ||
4589 | static int | ||
4590 | check_communicator_backchannel ( | ||
4591 | void *cls, | ||
4592 | const struct GNUNET_TRANSPORT_CommunicatorBackchannel *cb) | ||
4593 | { | ||
4594 | const struct GNUNET_MessageHeader *inbox; | ||
4595 | const char *is; | ||
4596 | uint16_t msize; | ||
4597 | uint16_t isize; | ||
4598 | |||
4599 | (void) cls; | ||
4600 | msize = ntohs (cb->header.size) - sizeof(*cb); | ||
4601 | inbox = (const struct GNUNET_MessageHeader *) &cb[1]; | ||
4602 | isize = ntohs (inbox->size); | ||
4603 | if (isize >= msize) | ||
4604 | { | ||
4605 | GNUNET_break (0); | ||
4606 | return GNUNET_SYSERR; | ||
4607 | } | ||
4608 | is = (const char *) inbox; | ||
4609 | is += isize; | ||
4610 | msize -= isize; | ||
4611 | GNUNET_assert (0 < msize); | ||
4612 | if ('\0' != is[msize - 1]) | ||
4613 | { | ||
4614 | GNUNET_break (0); | ||
4615 | return GNUNET_SYSERR; | ||
4616 | } | ||
4617 | return GNUNET_OK; | ||
4618 | } | ||
4619 | |||
4620 | |||
4621 | /** | ||
4622 | * Sign ephemeral keys in our @a dv are current. | ||
4623 | * | ||
4624 | * @param[in,out] dv virtual link to update ephemeral for | ||
4625 | */ | ||
4626 | static void | ||
4627 | sign_ephemeral (struct DistanceVector *dv) | ||
4628 | { | ||
4629 | struct EphemeralConfirmationPS ec; | ||
4630 | |||
4631 | dv->monotime = GNUNET_TIME_absolute_get_monotonic (GST_cfg); | ||
4632 | dv->ephemeral_validity = | ||
4633 | GNUNET_TIME_absolute_add (dv->monotime, EPHEMERAL_VALIDITY); | ||
4634 | ec.purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_TRANSPORT_EPHEMERAL); | ||
4635 | ec.target = dv->target; | ||
4636 | ec.ephemeral_key = dv->ephemeral_key; | ||
4637 | ec.sender_monotonic_time = GNUNET_TIME_absolute_hton (dv->monotime); | ||
4638 | ec.purpose.size = htonl (sizeof(ec)); | ||
4639 | GNUNET_CRYPTO_eddsa_sign (GST_my_private_key, | ||
4640 | &ec, | ||
4641 | &dv->sender_sig); | ||
4642 | } | ||
4643 | |||
4644 | |||
4645 | static void | ||
4646 | free_queue_entry (struct QueueEntry *qe, | ||
4647 | struct TransportClient *tc); | ||
4648 | |||
4649 | |||
4650 | static void | ||
4651 | free_timedout_queue_entry (void *cls) | ||
4652 | { | ||
4653 | struct TransportClient *tc = cls; | ||
4654 | struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get (); | ||
4655 | |||
4656 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4657 | "freeing timedout queue entries\n"); | ||
4658 | |||
4659 | tc->details.communicator.free_queue_entry_task = NULL; | ||
4660 | for (struct Queue *queue = tc->details.communicator.queue_head; NULL != queue; | ||
4661 | queue = queue->next_client) | ||
4662 | { | ||
4663 | struct QueueEntry *qep = queue->queue_head; | ||
4664 | |||
4665 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4666 | "checking QID %u for timedout queue entries\n", | ||
4667 | queue->qid); | ||
4668 | while (NULL != qep) | ||
4669 | { | ||
4670 | struct QueueEntry *pos = qep; | ||
4671 | |||
4672 | qep = qep->next; | ||
4673 | struct GNUNET_TIME_Relative diff = GNUNET_TIME_absolute_get_difference ( | ||
4674 | pos->creation_timestamp, now); | ||
4675 | |||
4676 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4677 | "diff to now %s \n", | ||
4678 | GNUNET_TIME_relative2s (diff, GNUNET_NO)); | ||
4679 | if (GNUNET_TIME_relative_cmp (QUEUE_ENTRY_TIMEOUT, <, diff)) | ||
4680 | { | ||
4681 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4682 | "Freeing timed out QueueEntry with MID %" PRIu64 | ||
4683 | " and QID %u\n", | ||
4684 | pos->mid, | ||
4685 | queue->qid); | ||
4686 | free_queue_entry (pos, tc); | ||
4687 | } | ||
4688 | } | ||
4689 | } | ||
4690 | } | ||
4691 | |||
4692 | |||
4693 | /** | ||
4694 | * Send the message @a payload on @a queue. | ||
4695 | * | ||
4696 | * @param queue the queue to use for transmission | ||
4697 | * @param pm pending message to update once transmission is done, may be NULL! | ||
4698 | * @param payload the payload to send (encapsulated in a | ||
4699 | * #GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_MSG). | ||
4700 | * @param payload_size number of bytes in @a payload | ||
4701 | */ | ||
4702 | static void | ||
4703 | queue_send_msg (struct Queue *queue, | ||
4704 | struct PendingMessage *pm, | ||
4705 | const void *payload, | ||
4706 | size_t payload_size) | ||
4707 | { | ||
4708 | struct Neighbour *n = queue->neighbour; | ||
4709 | struct GNUNET_TRANSPORT_SendMessageTo *smt; | ||
4710 | struct GNUNET_MQ_Envelope *env; | ||
4711 | struct PendingAcknowledgement *pa; | ||
4712 | |||
4713 | GNUNET_log ( | ||
4714 | GNUNET_ERROR_TYPE_DEBUG, | ||
4715 | "Queueing %u bytes of payload for transmission <%" PRIu64 | ||
4716 | "> on queue %llu to %s\n", | ||
4717 | (unsigned int) payload_size, | ||
4718 | (NULL == pm) ? 0 : pm->logging_uuid, | ||
4719 | (unsigned long long) queue->qid, | ||
4720 | GNUNET_i2s (&queue->neighbour->pid)); | ||
4721 | env = GNUNET_MQ_msg_extra (smt, | ||
4722 | payload_size, | ||
4723 | GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_MSG); | ||
4724 | smt->qid = htonl (queue->qid); | ||
4725 | smt->mid = GNUNET_htonll (queue->mid_gen); | ||
4726 | smt->receiver = n->pid; | ||
4727 | memcpy (&smt[1], payload, payload_size); | ||
4728 | { | ||
4729 | /* Pass the env to the communicator of queue for transmission. */ | ||
4730 | struct QueueEntry *qe; | ||
4731 | |||
4732 | qe = GNUNET_new (struct QueueEntry); | ||
4733 | qe->creation_timestamp = GNUNET_TIME_absolute_get (); | ||
4734 | qe->mid = queue->mid_gen; | ||
4735 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4736 | "Create QueueEntry with MID %" PRIu64 | ||
4737 | " and QID %u and prefix %s\n", | ||
4738 | qe->mid, | ||
4739 | queue->qid, | ||
4740 | queue->tc->details.communicator.address_prefix); | ||
4741 | queue->mid_gen++; | ||
4742 | qe->queue = queue; | ||
4743 | if (NULL != pm) | ||
4744 | { | ||
4745 | qe->pm = pm; | ||
4746 | // TODO Why do we have a retransmission. When we know, make decision if we still want this. | ||
4747 | // GNUNET_assert (NULL == pm->qe); | ||
4748 | if (NULL != pm->qe) | ||
4749 | { | ||
4750 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4751 | "Retransmitting message <%" PRIu64 | ||
4752 | "> remove pm from qe with MID: %llu \n", | ||
4753 | pm->logging_uuid, | ||
4754 | (unsigned long long) pm->qe->mid); | ||
4755 | pm->qe->pm = NULL; | ||
4756 | } | ||
4757 | pm->qe = qe; | ||
4758 | } | ||
4759 | GNUNET_assert (CT_COMMUNICATOR == queue->tc->type); | ||
4760 | if (0 == queue->q_capacity) | ||
4761 | { | ||
4762 | // Messages without FC or fragments can get here. | ||
4763 | if (NULL != pm) | ||
4764 | { | ||
4765 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4766 | "Message %" PRIu64 | ||
4767 | " (pm type %u) was not send because queue has no capacity.\n", | ||
4768 | pm->logging_uuid, | ||
4769 | pm->pmt); | ||
4770 | pm->qe = NULL; | ||
4771 | } | ||
4772 | GNUNET_free (env); | ||
4773 | GNUNET_free (qe); | ||
4774 | return; | ||
4775 | } | ||
4776 | GNUNET_CONTAINER_DLL_insert (queue->queue_head, queue->queue_tail, qe); | ||
4777 | queue->queue_length++; | ||
4778 | queue->tc->details.communicator.total_queue_length++; | ||
4779 | if (GNUNET_NO == queue->unlimited_length) | ||
4780 | queue->q_capacity--; | ||
4781 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4782 | "Queue %s with qid %u has capacity %" PRIu64 "\n", | ||
4783 | queue->address, | ||
4784 | queue->qid, | ||
4785 | queue->q_capacity); | ||
4786 | if (COMMUNICATOR_TOTAL_QUEUE_LIMIT == | ||
4787 | queue->tc->details.communicator.total_queue_length) | ||
4788 | queue->idle = GNUNET_NO; | ||
4789 | if (QUEUE_LENGTH_LIMIT == queue->queue_length) | ||
4790 | queue->idle = GNUNET_NO; | ||
4791 | if (0 == queue->q_capacity) | ||
4792 | queue->idle = GNUNET_NO; | ||
4793 | |||
4794 | if (GNUNET_NO == queue->idle) | ||
4795 | { | ||
4796 | struct TransportClient *tc = queue->tc; | ||
4797 | |||
4798 | if (NULL == tc->details.communicator.free_queue_entry_task) | ||
4799 | tc->details.communicator.free_queue_entry_task = | ||
4800 | GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS, | ||
4801 | & | ||
4802 | free_timedout_queue_entry, | ||
4803 | tc); | ||
4804 | } | ||
4805 | if (NULL != pm && NULL != (pa = pm->pa_head)) | ||
4806 | { | ||
4807 | while (pm != pa->pm) | ||
4808 | pa = pa->next_pa; | ||
4809 | pa->num_send++; | ||
4810 | } | ||
4811 | // GNUNET_CONTAINER_multiuuidmap_get (pending_acks, &ack[i].ack_uuid.value); | ||
4812 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4813 | "Sending message MID %" PRIu64 | ||
4814 | " of type %u (%u) and size %lu with MQ %p queue %s (QID %u) pending %" | ||
4815 | PRIu64 "\n", | ||
4816 | GNUNET_ntohll (smt->mid), | ||
4817 | ntohs (((const struct GNUNET_MessageHeader *) payload)->type), | ||
4818 | ntohs (smt->header.size), | ||
4819 | (unsigned long) payload_size, | ||
4820 | queue->tc->mq, | ||
4821 | queue->address, | ||
4822 | queue->qid, | ||
4823 | (NULL == pm) ? 0 : pm->logging_uuid); | ||
4824 | GNUNET_MQ_send (queue->tc->mq, env); | ||
4825 | } | ||
4826 | } | ||
4827 | |||
4828 | |||
4829 | /** | ||
4830 | * Pick a queue of @a n under constraints @a options and schedule | ||
4831 | * transmission of @a hdr. | ||
4832 | * | ||
4833 | * @param n neighbour to send to | ||
4834 | * @param hdr message to send as payload | ||
4835 | * @param options whether queues must be confirmed or not, | ||
4836 | * and whether we may pick multiple (2) queues | ||
4837 | * @return expected RTT for transmission, #GNUNET_TIME_UNIT_FOREVER_REL if sending failed | ||
4838 | */ | ||
4839 | static struct GNUNET_TIME_Relative | ||
4840 | route_via_neighbour (const struct Neighbour *n, | ||
4841 | const struct GNUNET_MessageHeader *hdr, | ||
4842 | enum RouteMessageOptions options) | ||
4843 | { | ||
4844 | struct GNUNET_TIME_Absolute now; | ||
4845 | unsigned int candidates; | ||
4846 | unsigned int sel1; | ||
4847 | unsigned int sel2; | ||
4848 | struct GNUNET_TIME_Relative rtt; | ||
4849 | |||
4850 | /* Pick one or two 'random' queues from n (under constraints of options) */ | ||
4851 | now = GNUNET_TIME_absolute_get (); | ||
4852 | /* FIXME-OPTIMIZE: give queues 'weights' and pick proportional to | ||
4853 | weight in the future; weight could be assigned by observed | ||
4854 | bandwidth (note: not sure if we should do this for this type | ||
4855 | of control traffic though). */ | ||
4856 | candidates = 0; | ||
4857 | for (struct Queue *pos = n->queue_head; NULL != pos; | ||
4858 | pos = pos->next_neighbour) | ||
4859 | { | ||
4860 | if ((0 != (options & RMO_UNCONFIRMED_ALLOWED)) || | ||
4861 | (pos->validated_until.abs_value_us > now.abs_value_us)) | ||
4862 | candidates++; | ||
4863 | } | ||
4864 | if (0 == candidates) | ||
4865 | { | ||
4866 | /* This can happen rarely if the last confirmed queue timed | ||
4867 | out just as we were beginning to process this message. */ | ||
4868 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
4869 | "Could not route message of type %u to %s: no valid queue\n", | ||
4870 | ntohs (hdr->type), | ||
4871 | GNUNET_i2s (&n->pid)); | ||
4872 | GNUNET_STATISTICS_update (GST_stats, | ||
4873 | "# route selection failed (all no valid queue)", | ||
4874 | 1, | ||
4875 | GNUNET_NO); | ||
4876 | return GNUNET_TIME_UNIT_FOREVER_REL; | ||
4877 | } | ||
4878 | |||
4879 | rtt = GNUNET_TIME_UNIT_FOREVER_REL; | ||
4880 | sel1 = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, candidates); | ||
4881 | if (0 == (options & RMO_REDUNDANT)) | ||
4882 | sel2 = candidates; /* picks none! */ | ||
4883 | else | ||
4884 | sel2 = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, candidates); | ||
4885 | candidates = 0; | ||
4886 | for (struct Queue *pos = n->queue_head; NULL != pos; | ||
4887 | pos = pos->next_neighbour) | ||
4888 | { | ||
4889 | if ((0 != (options & RMO_UNCONFIRMED_ALLOWED)) || | ||
4890 | (pos->validated_until.abs_value_us > now.abs_value_us)) | ||
4891 | { | ||
4892 | if ((sel1 == candidates) || (sel2 == candidates)) | ||
4893 | { | ||
4894 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4895 | "Routing message of type %u to %s using %s (#%u)\n", | ||
4896 | ntohs (hdr->type), | ||
4897 | GNUNET_i2s (&n->pid), | ||
4898 | pos->address, | ||
4899 | (sel1 == candidates) ? 1 : 2); | ||
4900 | rtt = GNUNET_TIME_relative_min (rtt, pos->pd.aged_rtt); | ||
4901 | queue_send_msg (pos, NULL, hdr, ntohs (hdr->size)); | ||
4902 | } | ||
4903 | candidates++; | ||
4904 | } | ||
4905 | } | ||
4906 | return rtt; | ||
4907 | } | ||
4908 | |||
4909 | |||
4910 | /** | ||
4911 | * Structure of the key material used to encrypt backchannel messages. | ||
4912 | */ | ||
4913 | struct DVKeyState | ||
4914 | { | ||
4915 | /** | ||
4916 | * State of our block cipher. | ||
4917 | */ | ||
4918 | gcry_cipher_hd_t cipher; | ||
4919 | |||
4920 | /** | ||
4921 | * Actual key material. | ||
4922 | */ | ||
4923 | struct | ||
4924 | { | ||
4925 | /** | ||
4926 | * Key used for HMAC calculations (via #GNUNET_CRYPTO_hmac()). | ||
4927 | */ | ||
4928 | struct GNUNET_CRYPTO_AuthKey hmac_key; | ||
4929 | |||
4930 | /** | ||
4931 | * Symmetric key to use for encryption. | ||
4932 | */ | ||
4933 | char aes_key[256 / 8]; | ||
4934 | |||
4935 | /** | ||
4936 | * Counter value to use during setup. | ||
4937 | */ | ||
4938 | char aes_ctr[128 / 8]; | ||
4939 | } material; | ||
4940 | }; | ||
4941 | |||
4942 | |||
4943 | /** | ||
4944 | * Given the key material in @a km and the initialization vector | ||
4945 | * @a iv, setup the key material for the backchannel in @a key. | ||
4946 | * | ||
4947 | * @param km raw master secret | ||
4948 | * @param iv initialization vector | ||
4949 | * @param[out] key symmetric cipher and HMAC state to generate | ||
4950 | */ | ||
4951 | static void | ||
4952 | dv_setup_key_state_from_km (const struct GNUNET_HashCode *km, | ||
4953 | const struct GNUNET_ShortHashCode *iv, | ||
4954 | struct DVKeyState *key) | ||
4955 | { | ||
4956 | /* must match what we defive from decapsulated key */ | ||
4957 | GNUNET_assert (GNUNET_YES == | ||
4958 | GNUNET_CRYPTO_kdf (&key->material, | ||
4959 | sizeof(key->material), | ||
4960 | "transport-backchannel-key", | ||
4961 | strlen ("transport-backchannel-key"), | ||
4962 | km, | ||
4963 | sizeof(*km), | ||
4964 | iv, | ||
4965 | sizeof(*iv), | ||
4966 | NULL)); | ||
4967 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
4968 | "Deriving backchannel key based on KM %s and IV %s\n", | ||
4969 | GNUNET_h2s (km), | ||
4970 | GNUNET_sh2s (iv)); | ||
4971 | GNUNET_assert (0 == gcry_cipher_open (&key->cipher, | ||
4972 | GCRY_CIPHER_AES256 /* low level: go for speed */, | ||
4973 | GCRY_CIPHER_MODE_CTR, | ||
4974 | 0 /* flags */)); | ||
4975 | GNUNET_assert (0 == gcry_cipher_setkey (key->cipher, | ||
4976 | &key->material.aes_key, | ||
4977 | sizeof(key->material.aes_key))); | ||
4978 | gcry_cipher_setctr (key->cipher, | ||
4979 | &key->material.aes_ctr, | ||
4980 | sizeof(key->material.aes_ctr)); | ||
4981 | } | ||
4982 | |||
4983 | |||
4984 | /** | ||
4985 | * Do HMAC calculation for backchannel messages over @a data using key | ||
4986 | * material from @a key. | ||
4987 | * | ||
4988 | * @param key key material (from DH) | ||
4989 | * @param[out] hmac set to the HMAC | ||
4990 | * @param data data to perform HMAC calculation over | ||
4991 | * @param data_size number of bytes in @a data | ||
4992 | */ | ||
4993 | static void | ||
4994 | dv_hmac (const struct DVKeyState *key, | ||
4995 | struct GNUNET_HashCode *hmac, | ||
4996 | const void *data, | ||
4997 | size_t data_size) | ||
4998 | { | ||
4999 | GNUNET_CRYPTO_hmac (&key->material.hmac_key, data, data_size, hmac); | ||
5000 | } | ||
5001 | |||
5002 | |||
5003 | /** | ||
5004 | * Perform backchannel encryption using symmetric secret in @a key | ||
5005 | * to encrypt data from @a in to @a dst. | ||
5006 | * | ||
5007 | * @param[in,out] key key material to use | ||
5008 | * @param dst where to write the result | ||
5009 | * @param in input data to encrypt (plaintext) | ||
5010 | * @param in_size number of bytes of input in @a in and available at @a dst | ||
5011 | */ | ||
5012 | static void | ||
5013 | dv_encrypt (struct DVKeyState *key, const void *in, void *dst, size_t in_size) | ||
5014 | { | ||
5015 | GNUNET_assert (0 == | ||
5016 | gcry_cipher_encrypt (key->cipher, dst, in_size, in, in_size)); | ||
5017 | } | ||
5018 | |||
5019 | |||
5020 | /** | ||
5021 | * Perform backchannel encryption using symmetric secret in @a key | ||
5022 | * to encrypt data from @a in to @a dst. | ||
5023 | * | ||
5024 | * @param[in,out] key key material to use | ||
5025 | * @param ciph cipher text to decrypt | ||
5026 | * @param[out] out output data to generate (plaintext) | ||
5027 | * @param out_size number of bytes of input in @a ciph and available in @a out | ||
5028 | * @return GNUNET_OK on success | ||
5029 | */ | ||
5030 | static enum GNUNET_GenericReturnValue | ||
5031 | dv_decrypt (struct DVKeyState *key, | ||
5032 | void *out, | ||
5033 | const void *ciph, | ||
5034 | size_t out_size) | ||
5035 | { | ||
5036 | return (0 == | ||
5037 | gcry_cipher_decrypt (key->cipher, | ||
5038 | out, out_size, | ||
5039 | ciph, out_size)) ? GNUNET_OK : GNUNET_SYSERR; | ||
5040 | } | ||
5041 | |||
5042 | |||
5043 | /** | ||
5044 | * Clean up key material in @a key. | ||
5045 | * | ||
5046 | * @param key key material to clean up (memory must not be free'd!) | ||
5047 | */ | ||
5048 | static void | ||
5049 | dv_key_clean (struct DVKeyState *key) | ||
5050 | { | ||
5051 | gcry_cipher_close (key->cipher); | ||
5052 | GNUNET_CRYPTO_zero_keys (&key->material, sizeof(key->material)); | ||
5053 | } | ||
5054 | |||
5055 | |||
5056 | /** | ||
5057 | * Function to call to further operate on the now DV encapsulated | ||
5058 | * message @a hdr, forwarding it via @a next_hop under respect of | ||
5059 | * @a options. | ||
5060 | * | ||
5061 | * @param cls closure | ||
5062 | * @param next_hop next hop of the DV path | ||
5063 | * @param hdr encapsulated message, technically a `struct TransportDFBoxMessage` | ||
5064 | * @param options options of the original message | ||
5065 | */ | ||
5066 | typedef void (*DVMessageHandler) (void *cls, | ||
5067 | struct Neighbour *next_hop, | ||
5068 | const struct GNUNET_MessageHeader *hdr, | ||
5069 | enum RouteMessageOptions options); | ||
5070 | |||
5071 | /** | ||
5072 | * Pick a path of @a dv under constraints @a options and schedule | ||
5073 | * transmission of @a hdr. | ||
5074 | * | ||
5075 | * @param target neighbour to ultimately send to | ||
5076 | * @param num_dvhs length of the @a dvhs array | ||
5077 | * @param dvhs array of hops to send the message to | ||
5078 | * @param hdr message to send as payload | ||
5079 | * @param use function to call with the encapsulated message | ||
5080 | * @param use_cls closure for @a use | ||
5081 | * @param options whether path must be confirmed or not, to be passed to @a use | ||
5082 | * @param without_fc shall this TransportDVBoxMessage be forwarded without flow control. | ||
5083 | * @return expected RTT for transmission, #GNUNET_TIME_UNIT_FOREVER_REL if sending failed | ||
5084 | */ | ||
5085 | static struct GNUNET_TIME_Relative | ||
5086 | encapsulate_for_dv (struct DistanceVector *dv, | ||
5087 | unsigned int num_dvhs, | ||
5088 | struct DistanceVectorHop **dvhs, | ||
5089 | const struct GNUNET_MessageHeader *hdr, | ||
5090 | DVMessageHandler use, | ||
5091 | void *use_cls, | ||
5092 | enum RouteMessageOptions options, | ||
5093 | enum GNUNET_GenericReturnValue without_fc) | ||
5094 | { | ||
5095 | struct TransportDVBoxMessage box_hdr; | ||
5096 | struct TransportDVBoxPayloadP payload_hdr; | ||
5097 | uint16_t enc_body_size = ntohs (hdr->size); | ||
5098 | char enc[sizeof(struct TransportDVBoxPayloadP) + enc_body_size] GNUNET_ALIGN; | ||
5099 | struct DVKeyState *key; | ||
5100 | struct GNUNET_TIME_Relative rtt; | ||
5101 | struct GNUNET_HashCode km; | ||
5102 | |||
5103 | key = GNUNET_new (struct DVKeyState); | ||
5104 | /* Encrypt payload */ | ||
5105 | box_hdr.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_DV_BOX); | ||
5106 | box_hdr.total_hops = htons (0); | ||
5107 | box_hdr.without_fc = htons (without_fc); | ||
5108 | // update_ephemeral (dv); | ||
5109 | if (0 == | ||
5110 | GNUNET_TIME_absolute_get_remaining (dv->ephemeral_validity).rel_value_us) | ||
5111 | { | ||
5112 | GNUNET_CRYPTO_eddsa_kem_encaps (&dv->target.public_key, | ||
5113 | &dv->ephemeral_key, | ||
5114 | &km); | ||
5115 | dv->km = GNUNET_new (struct GNUNET_HashCode); | ||
5116 | GNUNET_memcpy (dv->km, &km, sizeof(struct GNUNET_HashCode)); | ||
5117 | sign_ephemeral (dv); | ||
5118 | } | ||
5119 | box_hdr.ephemeral_key = dv->ephemeral_key; | ||
5120 | payload_hdr.sender_sig = dv->sender_sig; | ||
5121 | |||
5122 | GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_NONCE, | ||
5123 | &box_hdr.iv, | ||
5124 | sizeof(box_hdr.iv)); | ||
5125 | // We are creating this key, so this must work. | ||
5126 | // FIXME: Possibly also add return values here. We are processing | ||
5127 | // Input from other peers... | ||
5128 | dv_setup_key_state_from_km (dv->km, &box_hdr.iv, key); | ||
5129 | payload_hdr.sender = GST_my_identity; | ||
5130 | payload_hdr.monotonic_time = GNUNET_TIME_absolute_hton (dv->monotime); | ||
5131 | dv_encrypt (key, &payload_hdr, enc, sizeof(payload_hdr)); | ||
5132 | dv_encrypt (key, | ||
5133 | hdr, | ||
5134 | &enc[sizeof(struct TransportDVBoxPayloadP)], | ||
5135 | enc_body_size); | ||
5136 | dv_hmac (key, &box_hdr.hmac, enc, sizeof(enc)); | ||
5137 | dv_key_clean (key); | ||
5138 | rtt = GNUNET_TIME_UNIT_FOREVER_REL; | ||
5139 | /* For each selected path, take the pre-computed header and body | ||
5140 | and add the path in the middle of the message; then send it. */ | ||
5141 | for (unsigned int i = 0; i < num_dvhs; i++) | ||
5142 | { | ||
5143 | struct DistanceVectorHop *dvh = dvhs[i]; | ||
5144 | unsigned int num_hops = dvh->distance + 1; | ||
5145 | char buf[sizeof(struct TransportDVBoxMessage) | ||
5146 | + sizeof(struct GNUNET_PeerIdentity) * num_hops | ||
5147 | + sizeof(struct TransportDVBoxPayloadP) | ||
5148 | + enc_body_size] GNUNET_ALIGN; | ||
5149 | struct GNUNET_PeerIdentity *dhops; | ||
5150 | |||
5151 | box_hdr.header.size = htons (sizeof(buf)); | ||
5152 | box_hdr.orig_size = htons (sizeof(buf)); | ||
5153 | box_hdr.num_hops = htons (num_hops); | ||
5154 | memcpy (buf, &box_hdr, sizeof(box_hdr)); | ||
5155 | dhops = (struct GNUNET_PeerIdentity *) &buf[sizeof(box_hdr)]; | ||
5156 | memcpy (dhops, | ||
5157 | dvh->path, | ||
5158 | dvh->distance * sizeof(struct GNUNET_PeerIdentity)); | ||
5159 | dhops[dvh->distance] = dv->target; | ||
5160 | if (GNUNET_EXTRA_LOGGING > 0) | ||
5161 | { | ||
5162 | char *path; | ||
5163 | |||
5164 | path = GNUNET_strdup (GNUNET_i2s (&GST_my_identity)); | ||
5165 | for (unsigned int j = 0; j < num_hops; j++) | ||
5166 | { | ||
5167 | char *tmp; | ||
5168 | |||
5169 | GNUNET_asprintf (&tmp, "%s-%s", path, GNUNET_i2s (&dhops[j])); | ||
5170 | GNUNET_free (path); | ||
5171 | path = tmp; | ||
5172 | } | ||
5173 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5174 | "Routing message of type %u to %s using DV (#%u/%u) via %s\n", | ||
5175 | ntohs (hdr->type), | ||
5176 | GNUNET_i2s (&dv->target), | ||
5177 | i + 1, | ||
5178 | num_dvhs, | ||
5179 | path); | ||
5180 | GNUNET_free (path); | ||
5181 | } | ||
5182 | rtt = GNUNET_TIME_relative_min (rtt, dvh->pd.aged_rtt); | ||
5183 | memcpy (&dhops[num_hops], enc, sizeof(enc)); | ||
5184 | use (use_cls, | ||
5185 | dvh->next_hop, | ||
5186 | (const struct GNUNET_MessageHeader *) buf, | ||
5187 | options); | ||
5188 | GNUNET_free (key); | ||
5189 | } | ||
5190 | return rtt; | ||
5191 | } | ||
5192 | |||
5193 | |||
5194 | /** | ||
5195 | * Wrapper around #route_via_neighbour() that matches the | ||
5196 | * #DVMessageHandler structure. | ||
5197 | * | ||
5198 | * @param cls unused | ||
5199 | * @param next_hop where to send next | ||
5200 | * @param hdr header of the message to send | ||
5201 | * @param options message options for queue selection | ||
5202 | */ | ||
5203 | static void | ||
5204 | send_dv_to_neighbour (void *cls, | ||
5205 | struct Neighbour *next_hop, | ||
5206 | const struct GNUNET_MessageHeader *hdr, | ||
5207 | enum RouteMessageOptions options) | ||
5208 | { | ||
5209 | (void) cls; | ||
5210 | (void) route_via_neighbour (next_hop, hdr, RMO_UNCONFIRMED_ALLOWED); | ||
5211 | } | ||
5212 | |||
5213 | |||
5214 | /** | ||
5215 | * We need to transmit @a hdr to @a target. If necessary, this may | ||
5216 | * involve DV routing. This function routes without applying flow | ||
5217 | * control or congestion control and should only be used for control | ||
5218 | * traffic. | ||
5219 | * | ||
5220 | * @param target peer to receive @a hdr | ||
5221 | * @param hdr header of the message to route and #GNUNET_free() | ||
5222 | * @param options which transmission channels are allowed | ||
5223 | * @return expected RTT for transmission, #GNUNET_TIME_UNIT_FOREVER_REL if sending failed | ||
5224 | */ | ||
5225 | static struct GNUNET_TIME_Relative | ||
5226 | route_control_message_without_fc (struct VirtualLink *vl, | ||
5227 | // route_control_message_without_fc (const struct GNUNET_PeerIdentity *target, | ||
5228 | const struct GNUNET_MessageHeader *hdr, | ||
5229 | enum RouteMessageOptions options) | ||
5230 | { | ||
5231 | // struct VirtualLink *vl; | ||
5232 | struct Neighbour *n; | ||
5233 | struct DistanceVector *dv; | ||
5234 | struct GNUNET_TIME_Relative rtt1; | ||
5235 | struct GNUNET_TIME_Relative rtt2; | ||
5236 | const struct GNUNET_PeerIdentity *target = &vl->target; | ||
5237 | |||
5238 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5239 | "Trying to route message of type %u to %s without fc\n", | ||
5240 | ntohs (hdr->type), | ||
5241 | GNUNET_i2s (target)); | ||
5242 | |||
5243 | // TODO Do this elsewhere. vl should be given as parameter to method. | ||
5244 | // vl = lookup_virtual_link (target); | ||
5245 | GNUNET_assert (NULL != vl && GNUNET_YES == vl->confirmed); | ||
5246 | if (NULL == vl) | ||
5247 | return GNUNET_TIME_UNIT_FOREVER_REL; | ||
5248 | n = vl->n; | ||
5249 | dv = (0 != (options & RMO_DV_ALLOWED)) ? vl->dv : NULL; | ||
5250 | if (0 == (options & RMO_UNCONFIRMED_ALLOWED)) | ||
5251 | { | ||
5252 | /* if confirmed is required, and we do not have anything | ||
5253 | confirmed, drop respective options */ | ||
5254 | if (NULL == n) | ||
5255 | n = lookup_neighbour (target); | ||
5256 | if ((NULL == dv) && (0 != (options & RMO_DV_ALLOWED))) | ||
5257 | dv = GNUNET_CONTAINER_multipeermap_get (dv_routes, target); | ||
5258 | } | ||
5259 | if ((NULL == n) && (NULL == dv)) | ||
5260 | { | ||
5261 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
5262 | "Cannot route message of type %u to %s: no route\n", | ||
5263 | ntohs (hdr->type), | ||
5264 | GNUNET_i2s (target)); | ||
5265 | GNUNET_STATISTICS_update (GST_stats, | ||
5266 | "# Messages dropped in routing: no acceptable method", | ||
5267 | 1, | ||
5268 | GNUNET_NO); | ||
5269 | return GNUNET_TIME_UNIT_FOREVER_REL; | ||
5270 | } | ||
5271 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5272 | "Routing message of type %u to %s with options %X\n", | ||
5273 | ntohs (hdr->type), | ||
5274 | GNUNET_i2s (target), | ||
5275 | (unsigned int) options); | ||
5276 | /* If both dv and n are possible and we must choose: | ||
5277 | flip a coin for the choice between the two; for now 50/50 */ | ||
5278 | if ((NULL != n) && (NULL != dv) && (0 == (options & RMO_REDUNDANT))) | ||
5279 | { | ||
5280 | if (0 == GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 2)) | ||
5281 | n = NULL; | ||
5282 | else | ||
5283 | dv = NULL; | ||
5284 | } | ||
5285 | if ((NULL != n) && (NULL != dv)) | ||
5286 | options &= ~RMO_REDUNDANT; /* We will do one DV and one direct, that's | ||
5287 | enough for redundancy, so clear the flag. */ | ||
5288 | rtt1 = GNUNET_TIME_UNIT_FOREVER_REL; | ||
5289 | rtt2 = GNUNET_TIME_UNIT_FOREVER_REL; | ||
5290 | if (NULL != n) | ||
5291 | { | ||
5292 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5293 | "Try to route message of type %u to %s without fc via neighbour\n", | ||
5294 | ntohs (hdr->type), | ||
5295 | GNUNET_i2s (target)); | ||
5296 | rtt1 = route_via_neighbour (n, hdr, options); | ||
5297 | } | ||
5298 | if (NULL != dv) | ||
5299 | { | ||
5300 | struct DistanceVectorHop *hops[2]; | ||
5301 | unsigned int res; | ||
5302 | |||
5303 | res = pick_random_dv_hops (dv, | ||
5304 | options, | ||
5305 | hops, | ||
5306 | (0 == (options & RMO_REDUNDANT)) ? 1 : 2); | ||
5307 | if (0 == res) | ||
5308 | { | ||
5309 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
5310 | "Failed to route message, could not determine DV path\n"); | ||
5311 | return rtt1; | ||
5312 | } | ||
5313 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5314 | "encapsulate_for_dv 1\n"); | ||
5315 | rtt2 = encapsulate_for_dv (dv, | ||
5316 | res, | ||
5317 | hops, | ||
5318 | hdr, | ||
5319 | &send_dv_to_neighbour, | ||
5320 | NULL, | ||
5321 | options & (~RMO_REDUNDANT), | ||
5322 | GNUNET_YES); | ||
5323 | } | ||
5324 | return GNUNET_TIME_relative_min (rtt1, rtt2); | ||
5325 | } | ||
5326 | |||
5327 | |||
5328 | static void | ||
5329 | consider_sending_fc (void *cls); | ||
5330 | |||
5331 | /** | ||
5332 | * Something changed on the virtual link with respect to flow | ||
5333 | * control. Consider retransmitting the FC window size. | ||
5334 | * | ||
5335 | * @param cls a `struct VirtualLink` to work with | ||
5336 | */ | ||
5337 | static void | ||
5338 | task_consider_sending_fc (void *cls) | ||
5339 | { | ||
5340 | struct VirtualLink *vl = cls; | ||
5341 | vl->fc_retransmit_task = NULL; | ||
5342 | consider_sending_fc (cls); | ||
5343 | } | ||
5344 | |||
5345 | |||
5346 | static char * | ||
5347 | get_address_without_port (const char *address); | ||
5348 | |||
5349 | |||
5350 | struct AddGlobalAddressesContext | ||
5351 | { | ||
5352 | size_t off; | ||
5353 | char *tgnas; | ||
5354 | }; | ||
5355 | |||
5356 | |||
5357 | static enum GNUNET_GenericReturnValue | ||
5358 | add_global_addresses (void *cls, | ||
5359 | const struct GNUNET_PeerIdentity *pid, | ||
5360 | void *value) | ||
5361 | { | ||
5362 | struct AddGlobalAddressesContext *ctx = cls; | ||
5363 | struct TransportGlobalNattedAddress *tgna = value; | ||
5364 | char *addr = (char *) &tgna[1]; | ||
5365 | size_t address_len = strlen (addr); | ||
5366 | |||
5367 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5368 | "sending address %s length %lu\n", | ||
5369 | addr, | ||
5370 | address_len); | ||
5371 | tgna = GNUNET_malloc (sizeof (struct TransportGlobalNattedAddress) + address_len); | ||
5372 | tgna->address_length = htonl (address_len); | ||
5373 | GNUNET_memcpy (&tgna[1], addr, address_len); | ||
5374 | GNUNET_memcpy (&(ctx->tgnas[ctx->off]), tgna, sizeof (struct TransportGlobalNattedAddress) + address_len); | ||
5375 | GNUNET_free (tgna); | ||
5376 | ctx->off += sizeof(struct TransportGlobalNattedAddress) + address_len; | ||
5377 | |||
5378 | return GNUNET_OK; | ||
5379 | } | ||
5380 | |||
5381 | |||
5382 | /** | ||
5383 | * Something changed on the virtual link with respect to flow | ||
5384 | * control. Consider retransmitting the FC window size. | ||
5385 | * | ||
5386 | * @param cls a `struct VirtualLink` to work with | ||
5387 | */ | ||
5388 | static void | ||
5389 | consider_sending_fc (void *cls) | ||
5390 | { | ||
5391 | struct VirtualLink *vl = cls; | ||
5392 | struct GNUNET_TIME_Absolute monotime; | ||
5393 | struct TransportFlowControlMessage *fc; | ||
5394 | struct GNUNET_TIME_Relative duration; | ||
5395 | struct GNUNET_TIME_Relative rtt; | ||
5396 | struct Neighbour *n = vl->n; | ||
5397 | |||
5398 | if (0 < n->number_of_addresses) | ||
5399 | { | ||
5400 | size_t addresses_size = | ||
5401 | n->number_of_addresses * sizeof (struct TransportGlobalNattedAddress) + n->size_of_global_addresses; | ||
5402 | char *tgnas = GNUNET_malloc (addresses_size); | ||
5403 | struct AddGlobalAddressesContext ctx; | ||
5404 | ctx.off = 0; | ||
5405 | ctx.tgnas = tgnas; | ||
5406 | |||
5407 | fc = GNUNET_malloc (sizeof (struct TransportFlowControlMessage) + addresses_size); | ||
5408 | fc->header.size = htons (sizeof(struct TransportFlowControlMessage) + addresses_size); | ||
5409 | fc->size_of_addresses = htonl (n->size_of_global_addresses); | ||
5410 | fc->number_of_addresses = htonl (n->number_of_addresses); | ||
5411 | GNUNET_CONTAINER_multipeermap_iterate (n->natted_addresses, | ||
5412 | &add_global_addresses, | ||
5413 | &ctx); | ||
5414 | GNUNET_memcpy (&fc[1], tgnas, addresses_size); | ||
5415 | GNUNET_free (tgnas); | ||
5416 | } | ||
5417 | else | ||
5418 | { | ||
5419 | fc = GNUNET_malloc (sizeof (struct TransportFlowControlMessage)); | ||
5420 | fc->header.size = htons (sizeof(struct TransportFlowControlMessage)); | ||
5421 | } | ||
5422 | |||
5423 | duration = GNUNET_TIME_absolute_get_duration (vl->last_fc_transmission); | ||
5424 | /* OPTIMIZE-FC-BDP: decide sane criteria on when to do this, instead of doing | ||
5425 | it always! */ | ||
5426 | /* For example, we should probably ONLY do this if a bit more than | ||
5427 | an RTT has passed, or if the window changed "significantly" since | ||
5428 | then. See vl->last_fc_rtt! NOTE: to do this properly, we also | ||
5429 | need an estimate for the bandwidth-delay-product for the entire | ||
5430 | VL, as that determines "significantly". We have the delay, but | ||
5431 | the bandwidth statistics need to be added for the VL!*/(void) duration; | ||
5432 | |||
5433 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5434 | "Sending FC seq %u to %s with new window %llu\n", | ||
5435 | (unsigned int) vl->fc_seq_gen, | ||
5436 | GNUNET_i2s (&vl->target), | ||
5437 | (unsigned long long) vl->incoming_fc_window_size); | ||
5438 | monotime = GNUNET_TIME_absolute_get_monotonic (GST_cfg); | ||
5439 | vl->last_fc_transmission = monotime; | ||
5440 | fc->header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_FLOW_CONTROL); | ||
5441 | fc->seq = htonl (vl->fc_seq_gen++); | ||
5442 | fc->inbound_window_size = GNUNET_htonll (vl->incoming_fc_window_size | ||
5443 | + vl->incoming_fc_window_size_used | ||
5444 | + vl->incoming_fc_window_size_loss); | ||
5445 | fc->outbound_sent = GNUNET_htonll (vl->outbound_fc_window_size_used); | ||
5446 | fc->outbound_window_size = GNUNET_htonll (vl->outbound_fc_window_size); | ||
5447 | fc->sender_time = GNUNET_TIME_absolute_hton (monotime); | ||
5448 | rtt = route_control_message_without_fc (vl, &fc->header, RMO_DV_ALLOWED); | ||
5449 | if (GNUNET_TIME_UNIT_FOREVER_REL.rel_value_us == rtt.rel_value_us) | ||
5450 | { | ||
5451 | rtt = GNUNET_TIME_UNIT_SECONDS; | ||
5452 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5453 | "FC retransmission to %s failed, will retry in %s\n", | ||
5454 | GNUNET_i2s (&vl->target), | ||
5455 | GNUNET_STRINGS_relative_time_to_string (rtt, GNUNET_YES)); | ||
5456 | vl->last_fc_rtt = GNUNET_TIME_UNIT_ZERO; | ||
5457 | } | ||
5458 | else | ||
5459 | { | ||
5460 | /* OPTIMIZE-FC-BDP: rtt is not ideal, we can do better! */ | ||
5461 | vl->last_fc_rtt = rtt; | ||
5462 | } | ||
5463 | if (NULL != vl->fc_retransmit_task) | ||
5464 | GNUNET_SCHEDULER_cancel (vl->fc_retransmit_task); | ||
5465 | if (MAX_FC_RETRANSMIT_COUNT == vl->fc_retransmit_count) | ||
5466 | { | ||
5467 | rtt = GNUNET_TIME_UNIT_MINUTES; | ||
5468 | vl->fc_retransmit_count = 0; | ||
5469 | } | ||
5470 | vl->fc_retransmit_task = | ||
5471 | GNUNET_SCHEDULER_add_delayed (rtt, &task_consider_sending_fc, vl); | ||
5472 | vl->fc_retransmit_count++; | ||
5473 | GNUNET_free (fc); | ||
5474 | } | ||
5475 | |||
5476 | |||
5477 | /** | ||
5478 | * There is a message at the head of the pending messages for @a vl | ||
5479 | * which may be ready for transmission. Check if a queue is ready to | ||
5480 | * take it. | ||
5481 | * | ||
5482 | * This function must (1) check for flow control to ensure that we can | ||
5483 | * right now send to @a vl, (2) check that the pending message in the | ||
5484 | * queue is actually eligible, (3) determine if any applicable queue | ||
5485 | * (direct neighbour or DVH path) is ready to accept messages, and | ||
5486 | * (4) prioritize based on the preferences associated with the | ||
5487 | * pending message. | ||
5488 | * | ||
5489 | * So yeah, easy. | ||
5490 | * | ||
5491 | * @param vl virtual link where we should check for transmission | ||
5492 | */ | ||
5493 | static void | ||
5494 | check_vl_transmission (struct VirtualLink *vl) | ||
5495 | { | ||
5496 | struct Neighbour *n = vl->n; | ||
5497 | struct DistanceVector *dv = vl->dv; | ||
5498 | struct GNUNET_TIME_Absolute now; | ||
5499 | struct VirtualLink *vl_next_hop; | ||
5500 | int elig; | ||
5501 | |||
5502 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5503 | "check_vl_transmission to target %s\n", | ||
5504 | GNUNET_i2s (&vl->target)); | ||
5505 | /* Check that we have an eligible pending message! | ||
5506 | (cheaper than having #transmit_on_queue() find out!) */ | ||
5507 | elig = GNUNET_NO; | ||
5508 | for (struct PendingMessage *pm = vl->pending_msg_head; NULL != pm; | ||
5509 | pm = pm->next_vl) | ||
5510 | { | ||
5511 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5512 | "check_vl_transmission loop\n"); | ||
5513 | if (NULL != pm->qe) | ||
5514 | continue; /* not eligible, is in a queue! */ | ||
5515 | if (pm->bytes_msg + vl->outbound_fc_window_size_used > | ||
5516 | vl->outbound_fc_window_size) | ||
5517 | { | ||
5518 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5519 | "Stalled message %" PRIu64 | ||
5520 | " transmission on VL %s due to flow control: %llu < %llu\n", | ||
5521 | pm->logging_uuid, | ||
5522 | GNUNET_i2s (&vl->target), | ||
5523 | (unsigned long long) vl->outbound_fc_window_size, | ||
5524 | (unsigned long long) (pm->bytes_msg | ||
5525 | + vl->outbound_fc_window_size_used)); | ||
5526 | consider_sending_fc (vl); | ||
5527 | return; /* We have a message, but flow control says "nope" */ | ||
5528 | } | ||
5529 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5530 | "Target window on VL %s not stalled. Scheduling transmission on queue\n", | ||
5531 | GNUNET_i2s (&vl->target)); | ||
5532 | /* Notify queues at direct neighbours that we are interested */ | ||
5533 | now = GNUNET_TIME_absolute_get (); | ||
5534 | if (NULL != n) | ||
5535 | { | ||
5536 | for (struct Queue *queue = n->queue_head; NULL != queue; | ||
5537 | queue = queue->next_neighbour) | ||
5538 | { | ||
5539 | if ((GNUNET_YES == queue->idle) && | ||
5540 | (queue->validated_until.abs_value_us > now.abs_value_us)) | ||
5541 | { | ||
5542 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5543 | "Direct neighbour %s not stalled\n", | ||
5544 | GNUNET_i2s (&n->pid)); | ||
5545 | schedule_transmit_on_queue (GNUNET_TIME_UNIT_ZERO, | ||
5546 | queue, | ||
5547 | GNUNET_SCHEDULER_PRIORITY_DEFAULT); | ||
5548 | elig = GNUNET_YES; | ||
5549 | } | ||
5550 | else | ||
5551 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5552 | "Neighbour Queue QID: %u (%u) busy or invalid\n", | ||
5553 | queue->qid, | ||
5554 | queue->idle); | ||
5555 | } | ||
5556 | } | ||
5557 | /* Notify queues via DV that we are interested */ | ||
5558 | if (NULL != dv) | ||
5559 | { | ||
5560 | /* Do DV with lower scheduler priority, which effectively means that | ||
5561 | IF a neighbour exists and is available, we prefer it. */ | ||
5562 | for (struct DistanceVectorHop *pos = dv->dv_head; NULL != pos; | ||
5563 | pos = pos->next_dv) | ||
5564 | { | ||
5565 | struct Neighbour *nh = pos->next_hop; | ||
5566 | |||
5567 | |||
5568 | if (pos->path_valid_until.abs_value_us <= now.abs_value_us) | ||
5569 | continue; /* skip this one: path not validated */ | ||
5570 | else | ||
5571 | { | ||
5572 | vl_next_hop = lookup_virtual_link (&nh->pid); | ||
5573 | GNUNET_assert (NULL != vl_next_hop); | ||
5574 | if (pm->bytes_msg + vl_next_hop->outbound_fc_window_size_used > | ||
5575 | vl_next_hop->outbound_fc_window_size) | ||
5576 | { | ||
5577 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5578 | "Stalled message %" PRIu64 | ||
5579 | " transmission on next hop %s due to flow control: %llu < %llu\n", | ||
5580 | pm->logging_uuid, | ||
5581 | GNUNET_i2s (&vl_next_hop->target), | ||
5582 | (unsigned long | ||
5583 | long) vl_next_hop->outbound_fc_window_size, | ||
5584 | (unsigned long long) (pm->bytes_msg | ||
5585 | + vl_next_hop-> | ||
5586 | outbound_fc_window_size_used)); | ||
5587 | consider_sending_fc (vl_next_hop); | ||
5588 | continue; /* We have a message, but flow control says "nope" for the first hop of this path */ | ||
5589 | } | ||
5590 | for (struct Queue *queue = nh->queue_head; NULL != queue; | ||
5591 | queue = queue->next_neighbour) | ||
5592 | if ((GNUNET_YES == queue->idle) && | ||
5593 | (queue->validated_until.abs_value_us > now.abs_value_us)) | ||
5594 | { | ||
5595 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5596 | "Next hop neighbour %s not stalled\n", | ||
5597 | GNUNET_i2s (&nh->pid)); | ||
5598 | schedule_transmit_on_queue (GNUNET_TIME_UNIT_ZERO, | ||
5599 | queue, | ||
5600 | GNUNET_SCHEDULER_PRIORITY_BACKGROUND); | ||
5601 | elig = GNUNET_YES; | ||
5602 | } | ||
5603 | else | ||
5604 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5605 | "DV Queue QID: %u (%u) busy or invalid\n", | ||
5606 | queue->qid, | ||
5607 | queue->idle); | ||
5608 | } | ||
5609 | } | ||
5610 | } | ||
5611 | if (GNUNET_YES == elig) | ||
5612 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5613 | "Eligible message %" PRIu64 " of size %u to %s: %llu/%llu\n", | ||
5614 | pm->logging_uuid, | ||
5615 | pm->bytes_msg, | ||
5616 | GNUNET_i2s (&vl->target), | ||
5617 | (unsigned long long) vl->outbound_fc_window_size, | ||
5618 | (unsigned long long) (pm->bytes_msg | ||
5619 | + vl->outbound_fc_window_size_used)); | ||
5620 | break; | ||
5621 | } | ||
5622 | } | ||
5623 | |||
5624 | |||
5625 | /** | ||
5626 | * Client asked for transmission to a peer. Process the request. | ||
5627 | * | ||
5628 | * @param cls the client | ||
5629 | * @param obm the send message that was sent | ||
5630 | */ | ||
5631 | static void | ||
5632 | handle_client_send (void *cls, const struct OutboundMessage *obm) | ||
5633 | { | ||
5634 | struct TransportClient *tc = cls; | ||
5635 | struct PendingMessage *pm; | ||
5636 | const struct GNUNET_MessageHeader *obmm; | ||
5637 | uint32_t bytes_msg; | ||
5638 | struct VirtualLink *vl; | ||
5639 | enum GNUNET_MQ_PriorityPreferences pp; | ||
5640 | |||
5641 | GNUNET_assert (CT_CORE == tc->type); | ||
5642 | obmm = (const struct GNUNET_MessageHeader *) &obm[1]; | ||
5643 | bytes_msg = ntohs (obmm->size); | ||
5644 | pp = (enum GNUNET_MQ_PriorityPreferences) ntohl (obm->priority); | ||
5645 | vl = lookup_virtual_link (&obm->peer); | ||
5646 | if ((NULL == vl) || (GNUNET_NO == vl->confirmed)) | ||
5647 | { | ||
5648 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5649 | "Don't have %s as a neighbour (anymore).\n", | ||
5650 | GNUNET_i2s (&obm->peer)); | ||
5651 | /* Failure: don't have this peer as a neighbour (anymore). | ||
5652 | Might have gone down asynchronously, so this is NOT | ||
5653 | a protocol violation by CORE. Still count the event, | ||
5654 | as this should be rare. */ | ||
5655 | GNUNET_SERVICE_client_continue (tc->client); | ||
5656 | GNUNET_STATISTICS_update (GST_stats, | ||
5657 | "# messages dropped (neighbour unknown)", | ||
5658 | 1, | ||
5659 | GNUNET_NO); | ||
5660 | return; | ||
5661 | } | ||
5662 | |||
5663 | pm = GNUNET_malloc (sizeof(struct PendingMessage) + bytes_msg); | ||
5664 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5665 | "1 created pm %p storing vl %p\n", | ||
5666 | pm, | ||
5667 | vl); | ||
5668 | pm->logging_uuid = logging_uuid_gen++; | ||
5669 | pm->prefs = pp; | ||
5670 | pm->client = tc; | ||
5671 | pm->vl = vl; | ||
5672 | pm->bytes_msg = bytes_msg; | ||
5673 | memcpy (&pm[1], obmm, bytes_msg); | ||
5674 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5675 | "Sending message of type %u with %u bytes as <%" PRIu64 | ||
5676 | "> to %s\n", | ||
5677 | ntohs (obmm->type), | ||
5678 | bytes_msg, | ||
5679 | pm->logging_uuid, | ||
5680 | GNUNET_i2s (&obm->peer)); | ||
5681 | GNUNET_CONTAINER_MDLL_insert (client, | ||
5682 | tc->details.core.pending_msg_head, | ||
5683 | tc->details.core.pending_msg_tail, | ||
5684 | pm); | ||
5685 | GNUNET_CONTAINER_MDLL_insert (vl, | ||
5686 | vl->pending_msg_head, | ||
5687 | vl->pending_msg_tail, | ||
5688 | pm); | ||
5689 | check_vl_transmission (vl); | ||
5690 | GNUNET_SERVICE_client_continue (tc->client); | ||
5691 | } | ||
5692 | |||
5693 | |||
5694 | /** | ||
5695 | * Communicator requests backchannel transmission. Process the request. | ||
5696 | * Just repacks it into our `struct TransportBackchannelEncapsulationMessage *` | ||
5697 | * (which for now has exactly the same format, only a different message type) | ||
5698 | * and passes it on for routing. | ||
5699 | * | ||
5700 | * @param cls the client | ||
5701 | * @param cb the send message that was sent | ||
5702 | */ | ||
5703 | static void | ||
5704 | handle_communicator_backchannel ( | ||
5705 | void *cls, | ||
5706 | const struct GNUNET_TRANSPORT_CommunicatorBackchannel *cb) | ||
5707 | { | ||
5708 | struct Neighbour *n; | ||
5709 | struct VirtualLink *vl; | ||
5710 | struct TransportClient *tc = cls; | ||
5711 | const struct GNUNET_MessageHeader *inbox = | ||
5712 | (const struct GNUNET_MessageHeader *) &cb[1]; | ||
5713 | uint16_t isize = ntohs (inbox->size); | ||
5714 | const char *is = ((const char *) &cb[1]) + isize; | ||
5715 | size_t slen = strlen (is) + 1; | ||
5716 | char | ||
5717 | mbuf[slen + isize | ||
5718 | + sizeof(struct | ||
5719 | TransportBackchannelEncapsulationMessage)] GNUNET_ALIGN; | ||
5720 | struct TransportBackchannelEncapsulationMessage *be = | ||
5721 | (struct TransportBackchannelEncapsulationMessage *) mbuf; | ||
5722 | |||
5723 | /* 0-termination of 'is' was checked already in | ||
5724 | #check_communicator_backchannel() */ | ||
5725 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5726 | "Preparing backchannel transmission to %s:%s of type %u and size %u\n", | ||
5727 | GNUNET_i2s (&cb->pid), | ||
5728 | is, | ||
5729 | ntohs (inbox->type), | ||
5730 | ntohs (inbox->size)); | ||
5731 | /* encapsulate and encrypt message */ | ||
5732 | be->header.type = | ||
5733 | htons (GNUNET_MESSAGE_TYPE_TRANSPORT_BACKCHANNEL_ENCAPSULATION); | ||
5734 | be->header.size = htons (sizeof(mbuf)); | ||
5735 | memcpy (&be[1], inbox, isize); | ||
5736 | memcpy (&mbuf[sizeof(struct TransportBackchannelEncapsulationMessage) | ||
5737 | + isize], | ||
5738 | is, | ||
5739 | strlen (is) + 1); | ||
5740 | // route_control_message_without_fc (&cb->pid, &be->header, RMO_DV_ALLOWED); | ||
5741 | vl = lookup_virtual_link (&cb->pid); | ||
5742 | if ((NULL != vl) && (GNUNET_YES == vl->confirmed)) | ||
5743 | { | ||
5744 | route_control_message_without_fc (vl, &be->header, RMO_DV_ALLOWED); | ||
5745 | } | ||
5746 | else | ||
5747 | { | ||
5748 | /* Use route via neighbour */ | ||
5749 | n = lookup_neighbour (&cb->pid); | ||
5750 | if (NULL != n) | ||
5751 | route_via_neighbour ( | ||
5752 | n, | ||
5753 | &be->header, | ||
5754 | RMO_NONE); | ||
5755 | } | ||
5756 | GNUNET_SERVICE_client_continue (tc->client); | ||
5757 | } | ||
5758 | |||
5759 | |||
5760 | /** | ||
5761 | * Address of our peer added. Test message is well-formed. | ||
5762 | * | ||
5763 | * @param cls the client | ||
5764 | * @param aam the send message that was sent | ||
5765 | * @return #GNUNET_OK if message is well-formed | ||
5766 | */ | ||
5767 | static int | ||
5768 | check_add_address (void *cls, | ||
5769 | const struct GNUNET_TRANSPORT_AddAddressMessage *aam) | ||
5770 | { | ||
5771 | struct TransportClient *tc = cls; | ||
5772 | |||
5773 | if (CT_COMMUNICATOR != tc->type) | ||
5774 | { | ||
5775 | GNUNET_break (0); | ||
5776 | return GNUNET_SYSERR; | ||
5777 | } | ||
5778 | GNUNET_MQ_check_zero_termination (aam); | ||
5779 | return GNUNET_OK; | ||
5780 | } | ||
5781 | |||
5782 | |||
5783 | /** | ||
5784 | * Ask peerstore to store our address. | ||
5785 | * | ||
5786 | * @param cls an `struct AddressListEntry *` | ||
5787 | */ | ||
5788 | static void | ||
5789 | store_pi (void *cls); | ||
5790 | |||
5791 | |||
5792 | /** | ||
5793 | * Function called when peerstore is done storing our address. | ||
5794 | * | ||
5795 | * @param cls a `struct AddressListEntry` | ||
5796 | * @param success #GNUNET_YES if peerstore was successful | ||
5797 | */ | ||
5798 | static void | ||
5799 | peerstore_store_own_cb (void *cls, int success) | ||
5800 | { | ||
5801 | struct AddressListEntry *ale = cls; | ||
5802 | |||
5803 | ale->sc = NULL; | ||
5804 | if (GNUNET_YES != success) | ||
5805 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
5806 | "Failed to store our own address `%s' in peerstore!\n", | ||
5807 | ale->address); | ||
5808 | else | ||
5809 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5810 | "Successfully stored our own address `%s' in peerstore!\n", | ||
5811 | ale->address); | ||
5812 | /* refresh period is 1/4 of expiration time, that should be plenty | ||
5813 | without being excessive. */ | ||
5814 | ale->st = | ||
5815 | GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_divide (ale->expiration, | ||
5816 | 4ULL), | ||
5817 | &store_pi, | ||
5818 | ale); | ||
5819 | } | ||
5820 | |||
5821 | |||
5822 | static void | ||
5823 | shc_cont (void *cls, int success) | ||
5824 | { | ||
5825 | struct AddressListEntry *ale = cls; | ||
5826 | struct GNUNET_TIME_Absolute expiration; | ||
5827 | |||
5828 | expiration = GNUNET_TIME_relative_to_absolute (ale->expiration); | ||
5829 | ale->sc = GNUNET_PEERSTORE_store (peerstore, | ||
5830 | "transport", | ||
5831 | &GST_my_identity, | ||
5832 | GNUNET_PEERSTORE_TRANSPORT_HELLO_KEY, | ||
5833 | ale->signed_address, | ||
5834 | ale->signed_address_len, | ||
5835 | expiration, | ||
5836 | GNUNET_PEERSTORE_STOREOPTION_MULTIPLE, | ||
5837 | &peerstore_store_own_cb, | ||
5838 | ale); | ||
5839 | if (NULL == ale->sc) | ||
5840 | { | ||
5841 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
5842 | "Failed to store our address `%s' with peerstore\n", | ||
5843 | ale->address); | ||
5844 | ale->st = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS, | ||
5845 | &store_pi, | ||
5846 | ale); | ||
5847 | } | ||
5848 | } | ||
5849 | |||
5850 | |||
5851 | /** | ||
5852 | * Ask peerstore to store our address. | ||
5853 | * | ||
5854 | * @param cls an `struct AddressListEntry *` | ||
5855 | */ | ||
5856 | static void | ||
5857 | store_pi (void *cls) | ||
5858 | { | ||
5859 | struct AddressListEntry *ale = cls; | ||
5860 | struct GNUNET_MQ_Envelope *env; | ||
5861 | const struct GNUNET_MessageHeader *msg; | ||
5862 | const char *dash; | ||
5863 | char *address_uri; | ||
5864 | char *prefix = GNUNET_HELLO_address_to_prefix (ale->address); | ||
5865 | unsigned int add_success; | ||
5866 | |||
5867 | dash = strchr (ale->address, '-'); | ||
5868 | GNUNET_assert (NULL != dash); | ||
5869 | dash++; | ||
5870 | GNUNET_asprintf (&address_uri, | ||
5871 | "%s://%s", | ||
5872 | prefix, | ||
5873 | dash); | ||
5874 | GNUNET_free (prefix); | ||
5875 | ale->st = NULL; | ||
5876 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5877 | "Storing our address `%s' in peerstore until %s!\n", | ||
5878 | ale->address, | ||
5879 | GNUNET_STRINGS_absolute_time_to_string (hello_mono_time)); | ||
5880 | add_success = GNUNET_HELLO_builder_add_address (GST_my_hello, | ||
5881 | address_uri); | ||
5882 | if (GNUNET_OK != add_success) | ||
5883 | { | ||
5884 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
5885 | "Storing our address `%s' %s\n", | ||
5886 | address_uri, | ||
5887 | GNUNET_NO == add_success ? "not done" : "failed"); | ||
5888 | GNUNET_free (address_uri); | ||
5889 | return; | ||
5890 | } | ||
5891 | else | ||
5892 | { | ||
5893 | |||
5894 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
5895 | "Storing our address `%s'\n", | ||
5896 | address_uri); | ||
5897 | } | ||
5898 | // FIXME hello_mono_time used here?? What about expiration in ale? | ||
5899 | GNUNET_HELLO_sign_address (ale->address, | ||
5900 | ale->nt, | ||
5901 | hello_mono_time, | ||
5902 | GST_my_private_key, | ||
5903 | &ale->signed_address, | ||
5904 | &ale->signed_address_len); | ||
5905 | GNUNET_free (address_uri); | ||
5906 | env = GNUNET_HELLO_builder_to_env (GST_my_hello, | ||
5907 | GST_my_private_key, | ||
5908 | GNUNET_TIME_UNIT_ZERO); | ||
5909 | msg = GNUNET_MQ_env_get_msg (env); | ||
5910 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5911 | "store_pi 1\n"); | ||
5912 | ale->shc = GNUNET_PEERSTORE_hello_add (peerstore, | ||
5913 | msg, | ||
5914 | shc_cont, | ||
5915 | ale); | ||
5916 | GNUNET_free (env); | ||
5917 | } | ||
5918 | |||
5919 | |||
5920 | static struct AddressListEntry * | ||
5921 | create_address_entry (struct TransportClient *tc, | ||
5922 | struct GNUNET_TIME_Relative expiration, | ||
5923 | enum GNUNET_NetworkType nt, | ||
5924 | const char *address, | ||
5925 | uint32_t aid, | ||
5926 | size_t slen) | ||
5927 | { | ||
5928 | struct AddressListEntry *ale; | ||
5929 | |||
5930 | ale = GNUNET_malloc (sizeof(struct AddressListEntry) + slen); | ||
5931 | ale->tc = tc; | ||
5932 | ale->address = (const char *) &ale[1]; | ||
5933 | ale->expiration = expiration; | ||
5934 | ale->aid = aid; | ||
5935 | ale->nt = nt; | ||
5936 | memcpy (&ale[1], address, slen); | ||
5937 | ale->st = GNUNET_SCHEDULER_add_now (&store_pi, ale); | ||
5938 | |||
5939 | return ale; | ||
5940 | } | ||
5941 | |||
5942 | |||
5943 | /** | ||
5944 | * Address of our peer added. Process the request. | ||
5945 | * | ||
5946 | * @param cls the client | ||
5947 | * @param aam the send message that was sent | ||
5948 | */ | ||
5949 | static void | ||
5950 | handle_add_address (void *cls, | ||
5951 | const struct GNUNET_TRANSPORT_AddAddressMessage *aam) | ||
5952 | { | ||
5953 | struct TransportClient *tc = cls; | ||
5954 | struct AddressListEntry *ale; | ||
5955 | size_t slen; | ||
5956 | |||
5957 | /* 0-termination of &aam[1] was checked in #check_add_address */ | ||
5958 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
5959 | "Communicator added address `%s'!\n", | ||
5960 | (const char *) &aam[1]); | ||
5961 | slen = ntohs (aam->header.size) - sizeof(*aam); | ||
5962 | ale = create_address_entry (tc, | ||
5963 | GNUNET_TIME_relative_ntoh (aam->expiration), | ||
5964 | (enum GNUNET_NetworkType) ntohl (aam->nt), | ||
5965 | (const char *) &aam[1], | ||
5966 | aam->aid, | ||
5967 | slen); | ||
5968 | GNUNET_CONTAINER_DLL_insert (tc->details.communicator.addr_head, | ||
5969 | tc->details.communicator.addr_tail, | ||
5970 | ale); | ||
5971 | GNUNET_SERVICE_client_continue (tc->client); | ||
5972 | } | ||
5973 | |||
5974 | |||
5975 | /** | ||
5976 | * Address of our peer deleted. Process the request. | ||
5977 | * | ||
5978 | * @param cls the client | ||
5979 | * @param dam the send message that was sent | ||
5980 | */ | ||
5981 | static void | ||
5982 | handle_del_address (void *cls, | ||
5983 | const struct GNUNET_TRANSPORT_DelAddressMessage *dam) | ||
5984 | { | ||
5985 | struct TransportClient *tc = cls; | ||
5986 | struct AddressListEntry *alen; | ||
5987 | |||
5988 | if (CT_COMMUNICATOR != tc->type) | ||
5989 | { | ||
5990 | GNUNET_break (0); | ||
5991 | GNUNET_SERVICE_client_drop (tc->client); | ||
5992 | return; | ||
5993 | } | ||
5994 | for (struct AddressListEntry *ale = tc->details.communicator.addr_head; | ||
5995 | NULL != ale; | ||
5996 | ale = alen) | ||
5997 | { | ||
5998 | alen = ale->next; | ||
5999 | if (dam->aid != ale->aid) | ||
6000 | continue; | ||
6001 | GNUNET_assert (ale->tc == tc); | ||
6002 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6003 | "Communicator deleted address `%s'!\n", | ||
6004 | ale->address); | ||
6005 | free_address_list_entry (ale); | ||
6006 | GNUNET_SERVICE_client_continue (tc->client); | ||
6007 | return; | ||
6008 | } | ||
6009 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
6010 | "Communicator removed address we did not even have.\n"); | ||
6011 | GNUNET_SERVICE_client_continue (tc->client); | ||
6012 | // GNUNET_SERVICE_client_drop (tc->client); | ||
6013 | } | ||
6014 | |||
6015 | |||
6016 | /** | ||
6017 | * Given an inbound message @a msg from a communicator @a cmc, | ||
6018 | * demultiplex it based on the type calling the right handler. | ||
6019 | * | ||
6020 | * @param cmc context for demultiplexing | ||
6021 | * @param msg message to demultiplex | ||
6022 | */ | ||
6023 | static void | ||
6024 | demultiplex_with_cmc (struct CommunicatorMessageContext *cmc); | ||
6025 | |||
6026 | |||
6027 | /** | ||
6028 | * Function called when we are done giving a message of a certain | ||
6029 | * size to CORE and should thus decrement the number of bytes of | ||
6030 | * RAM reserved for that peer's MQ. | ||
6031 | * | ||
6032 | * @param cls a `struct CoreSentContext` | ||
6033 | */ | ||
6034 | static void | ||
6035 | core_env_sent_cb (void *cls) | ||
6036 | { | ||
6037 | struct CoreSentContext *ctx = cls; | ||
6038 | struct VirtualLink *vl = ctx->vl; | ||
6039 | |||
6040 | if (NULL == vl) | ||
6041 | { | ||
6042 | /* lost the link in the meantime, ignore */ | ||
6043 | GNUNET_free (ctx); | ||
6044 | return; | ||
6045 | } | ||
6046 | GNUNET_CONTAINER_DLL_remove (vl->csc_head, vl->csc_tail, ctx); | ||
6047 | GNUNET_assert (vl->incoming_fc_window_size_ram >= ctx->size); | ||
6048 | vl->incoming_fc_window_size_ram -= ctx->size; | ||
6049 | vl->incoming_fc_window_size_used += ctx->isize; | ||
6050 | consider_sending_fc (vl); | ||
6051 | GNUNET_free (ctx); | ||
6052 | } | ||
6053 | |||
6054 | |||
6055 | static void | ||
6056 | finish_handling_raw_message (struct VirtualLink *vl, | ||
6057 | const struct GNUNET_MessageHeader *mh, | ||
6058 | struct CommunicatorMessageContext *cmc, | ||
6059 | unsigned int free_cmc) | ||
6060 | { | ||
6061 | uint16_t size = ntohs (mh->size); | ||
6062 | int have_core; | ||
6063 | |||
6064 | if (vl->incoming_fc_window_size_ram > UINT_MAX - size) | ||
6065 | { | ||
6066 | GNUNET_STATISTICS_update (GST_stats, | ||
6067 | "# CORE messages dropped (FC arithmetic overflow)", | ||
6068 | 1, | ||
6069 | GNUNET_NO); | ||
6070 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6071 | "CORE messages of type %u with %u bytes dropped (FC arithmetic overflow)\n", | ||
6072 | (unsigned int) ntohs (mh->type), | ||
6073 | (unsigned int) ntohs (mh->size)); | ||
6074 | if (GNUNET_YES == free_cmc) | ||
6075 | finish_cmc_handling_with_continue (cmc, GNUNET_YES); | ||
6076 | return; | ||
6077 | } | ||
6078 | if (vl->incoming_fc_window_size_ram + size > vl->available_fc_window_size) | ||
6079 | { | ||
6080 | GNUNET_STATISTICS_update (GST_stats, | ||
6081 | "# CORE messages dropped (FC window overflow)", | ||
6082 | 1, | ||
6083 | GNUNET_NO); | ||
6084 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6085 | "CORE messages of type %u with %u bytes dropped (FC window overflow)\n", | ||
6086 | (unsigned int) ntohs (mh->type), | ||
6087 | (unsigned int) ntohs (mh->size)); | ||
6088 | if (GNUNET_YES == free_cmc) | ||
6089 | finish_cmc_handling_with_continue (cmc, GNUNET_YES); | ||
6090 | return; | ||
6091 | } | ||
6092 | |||
6093 | /* Forward to all CORE clients */ | ||
6094 | have_core = GNUNET_NO; | ||
6095 | for (struct TransportClient *tc = clients_head; NULL != tc; tc = tc->next) | ||
6096 | { | ||
6097 | struct GNUNET_MQ_Envelope *env; | ||
6098 | struct InboundMessage *im; | ||
6099 | struct CoreSentContext *ctx; | ||
6100 | |||
6101 | if (CT_CORE != tc->type) | ||
6102 | continue; | ||
6103 | vl->incoming_fc_window_size_ram += size; | ||
6104 | env = GNUNET_MQ_msg_extra (im, size, GNUNET_MESSAGE_TYPE_TRANSPORT_RECV); | ||
6105 | ctx = GNUNET_new (struct CoreSentContext); | ||
6106 | ctx->vl = vl; | ||
6107 | ctx->size = size; | ||
6108 | ctx->isize = (GNUNET_NO == have_core) ? size : 0; | ||
6109 | have_core = GNUNET_YES; | ||
6110 | GNUNET_CONTAINER_DLL_insert (vl->csc_head, vl->csc_tail, ctx); | ||
6111 | GNUNET_MQ_notify_sent (env, &core_env_sent_cb, ctx); | ||
6112 | im->peer = cmc->im.sender; | ||
6113 | memcpy (&im[1], mh, size); | ||
6114 | GNUNET_MQ_send (tc->mq, env); | ||
6115 | vl->core_recv_window--; | ||
6116 | } | ||
6117 | if (GNUNET_NO == have_core) | ||
6118 | { | ||
6119 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
6120 | "Dropped message to CORE: no CORE client connected!\n"); | ||
6121 | /* Nevertheless, count window as used, as it is from the | ||
6122 | perspective of the other peer! */ | ||
6123 | vl->incoming_fc_window_size_used += size; | ||
6124 | /* TODO-M1 */ | ||
6125 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6126 | "Dropped message of type %u with %u bytes to CORE: no CORE client connected!\n", | ||
6127 | (unsigned int) ntohs (mh->type), | ||
6128 | (unsigned int) ntohs (mh->size)); | ||
6129 | if (GNUNET_YES == free_cmc) | ||
6130 | finish_cmc_handling_with_continue (cmc, GNUNET_YES); | ||
6131 | return; | ||
6132 | } | ||
6133 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6134 | "Delivered message from %s of type %u to CORE recv window %d\n", | ||
6135 | GNUNET_i2s (&cmc->im.sender), | ||
6136 | ntohs (mh->type), | ||
6137 | vl->core_recv_window); | ||
6138 | if (vl->core_recv_window > 0) | ||
6139 | { | ||
6140 | if (GNUNET_YES == free_cmc) | ||
6141 | finish_cmc_handling_with_continue (cmc, GNUNET_YES); | ||
6142 | return; | ||
6143 | } | ||
6144 | /* Wait with calling #finish_cmc_handling(cmc) until the message | ||
6145 | was processed by CORE MQs (for CORE flow control)! */ | ||
6146 | if (GNUNET_YES == free_cmc) | ||
6147 | GNUNET_CONTAINER_DLL_insert (vl->cmc_head, vl->cmc_tail, cmc); | ||
6148 | } | ||
6149 | |||
6150 | |||
6151 | /** | ||
6152 | * Communicator gave us an unencapsulated message to pass as-is to | ||
6153 | * CORE. Process the request. | ||
6154 | * | ||
6155 | * @param cls a `struct CommunicatorMessageContext` (must call | ||
6156 | * #finish_cmc_handling() when done) | ||
6157 | * @param mh the message that was received | ||
6158 | */ | ||
6159 | static void | ||
6160 | handle_raw_message (void *cls, const struct GNUNET_MessageHeader *mh) | ||
6161 | { | ||
6162 | struct CommunicatorMessageContext *cmc = cls; | ||
6163 | // struct CommunicatorMessageContext *cmc_copy = | ||
6164 | // GNUNET_new (struct CommunicatorMessageContext); | ||
6165 | struct GNUNET_MessageHeader *mh_copy; | ||
6166 | struct RingBufferEntry *rbe; | ||
6167 | struct VirtualLink *vl; | ||
6168 | uint16_t size = ntohs (mh->size); | ||
6169 | |||
6170 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6171 | "Handling raw message of type %u with %u bytes\n", | ||
6172 | (unsigned int) ntohs (mh->type), | ||
6173 | (unsigned int) ntohs (mh->size)); | ||
6174 | |||
6175 | if ((size > UINT16_MAX - sizeof(struct InboundMessage)) || | ||
6176 | (size < sizeof(struct GNUNET_MessageHeader))) | ||
6177 | { | ||
6178 | struct GNUNET_SERVICE_Client *client = cmc->tc->client; | ||
6179 | |||
6180 | GNUNET_break (0); | ||
6181 | finish_cmc_handling (cmc); | ||
6182 | GNUNET_SERVICE_client_drop (client); | ||
6183 | return; | ||
6184 | } | ||
6185 | vl = lookup_virtual_link (&cmc->im.sender); | ||
6186 | if ((NULL == vl) || (GNUNET_NO == vl->confirmed)) | ||
6187 | { | ||
6188 | /* FIXME: sender is giving us messages for CORE but we don't have | ||
6189 | the link up yet! I *suspect* this can happen right now (i.e. | ||
6190 | sender has verified us, but we didn't verify sender), but if | ||
6191 | we pass this on, CORE would be confused (link down, messages | ||
6192 | arrive). We should investigate more if this happens often, | ||
6193 | or in a persistent manner, and possibly do "something" about | ||
6194 | it. Thus logging as error for now. */ | ||
6195 | |||
6196 | mh_copy = GNUNET_malloc (size); | ||
6197 | rbe = GNUNET_new (struct RingBufferEntry); | ||
6198 | rbe->cmc = cmc; | ||
6199 | /*cmc_copy->tc = cmc->tc; | ||
6200 | cmc_copy->im = cmc->im;*/ | ||
6201 | GNUNET_memcpy (mh_copy, mh, size); | ||
6202 | |||
6203 | rbe->mh = mh_copy; | ||
6204 | |||
6205 | if (GNUNET_YES == is_ring_buffer_full) | ||
6206 | { | ||
6207 | struct RingBufferEntry *rbe_old = ring_buffer[ring_buffer_head]; | ||
6208 | GNUNET_free (rbe_old->cmc); | ||
6209 | GNUNET_free (rbe_old->mh); | ||
6210 | GNUNET_free (rbe_old); | ||
6211 | } | ||
6212 | ring_buffer[ring_buffer_head] = rbe;// cmc_copy; | ||
6213 | // cmc_copy->mh = (const struct GNUNET_MessageHeader *) mh_copy; | ||
6214 | cmc->mh = (const struct GNUNET_MessageHeader *) mh_copy; | ||
6215 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6216 | "Storing message for %s and type %u (%u) in ring buffer head %u is full %u\n", | ||
6217 | GNUNET_i2s (&cmc->im.sender), | ||
6218 | (unsigned int) ntohs (mh->type), | ||
6219 | (unsigned int) ntohs (mh_copy->type), | ||
6220 | ring_buffer_head, | ||
6221 | is_ring_buffer_full); | ||
6222 | if (RING_BUFFER_SIZE - 1 == ring_buffer_head) | ||
6223 | { | ||
6224 | ring_buffer_head = 0; | ||
6225 | is_ring_buffer_full = GNUNET_YES; | ||
6226 | } | ||
6227 | else | ||
6228 | ring_buffer_head++; | ||
6229 | |||
6230 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6231 | "%u items stored in ring buffer\n", | ||
6232 | GNUNET_YES == is_ring_buffer_full ? RING_BUFFER_SIZE : | ||
6233 | ring_buffer_head); | ||
6234 | |||
6235 | /*GNUNET_break_op (0); | ||
6236 | GNUNET_STATISTICS_update (GST_stats, | ||
6237 | "# CORE messages dropped (virtual link still down)", | ||
6238 | 1, | ||
6239 | GNUNET_NO); | ||
6240 | |||
6241 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6242 | "CORE messages of type %u with %u bytes dropped (virtual link still down)\n", | ||
6243 | (unsigned int) ntohs (mh->type), | ||
6244 | (unsigned int) ntohs (mh->size)); | ||
6245 | finish_cmc_handling (cmc);*/ | ||
6246 | finish_cmc_handling_with_continue (cmc, GNUNET_NO); | ||
6247 | cmc->continue_send = GNUNET_YES; | ||
6248 | // GNUNET_free (cmc); | ||
6249 | return; | ||
6250 | } | ||
6251 | finish_handling_raw_message (vl, mh, cmc, GNUNET_YES); | ||
6252 | } | ||
6253 | |||
6254 | |||
6255 | /** | ||
6256 | * Communicator gave us a fragment box. Check the message. | ||
6257 | * | ||
6258 | * @param cls a `struct CommunicatorMessageContext` | ||
6259 | * @param fb the send message that was sent | ||
6260 | * @return #GNUNET_YES if message is well-formed | ||
6261 | */ | ||
6262 | static int | ||
6263 | check_fragment_box (void *cls, const struct TransportFragmentBoxMessage *fb) | ||
6264 | { | ||
6265 | uint16_t size = ntohs (fb->header.size); | ||
6266 | uint16_t bsize = size - sizeof(*fb); | ||
6267 | |||
6268 | (void) cls; | ||
6269 | if (0 == bsize) | ||
6270 | { | ||
6271 | GNUNET_break_op (0); | ||
6272 | return GNUNET_SYSERR; | ||
6273 | } | ||
6274 | if (bsize + ntohs (fb->frag_off) > ntohs (fb->msg_size)) | ||
6275 | { | ||
6276 | GNUNET_break_op (0); | ||
6277 | return GNUNET_SYSERR; | ||
6278 | } | ||
6279 | if (ntohs (fb->frag_off) >= ntohs (fb->msg_size)) | ||
6280 | { | ||
6281 | GNUNET_break_op (0); | ||
6282 | return GNUNET_SYSERR; | ||
6283 | } | ||
6284 | return GNUNET_YES; | ||
6285 | } | ||
6286 | |||
6287 | |||
6288 | /** | ||
6289 | * Clean up an idle cumulative acknowledgement data structure. | ||
6290 | * | ||
6291 | * @param cls a `struct AcknowledgementCummulator *` | ||
6292 | */ | ||
6293 | static void | ||
6294 | destroy_ack_cummulator (void *cls) | ||
6295 | { | ||
6296 | struct AcknowledgementCummulator *ac = cls; | ||
6297 | |||
6298 | ac->task = NULL; | ||
6299 | GNUNET_assert (0 == ac->num_acks); | ||
6300 | GNUNET_assert ( | ||
6301 | GNUNET_YES == | ||
6302 | GNUNET_CONTAINER_multipeermap_remove (ack_cummulators, &ac->target, ac)); | ||
6303 | GNUNET_free (ac); | ||
6304 | } | ||
6305 | |||
6306 | |||
6307 | /** | ||
6308 | * Do the transmission of a cumulative acknowledgement now. | ||
6309 | * | ||
6310 | * @param cls a `struct AcknowledgementCummulator *` | ||
6311 | */ | ||
6312 | static void | ||
6313 | transmit_cummulative_ack_cb (void *cls) | ||
6314 | { | ||
6315 | struct Neighbour *n; | ||
6316 | struct VirtualLink *vl; | ||
6317 | struct AcknowledgementCummulator *ac = cls; | ||
6318 | char buf[sizeof(struct TransportReliabilityAckMessage) | ||
6319 | + ac->num_acks | ||
6320 | * sizeof(struct TransportCummulativeAckPayloadP)] GNUNET_ALIGN; | ||
6321 | struct TransportReliabilityAckMessage *ack = | ||
6322 | (struct TransportReliabilityAckMessage *) buf; | ||
6323 | struct TransportCummulativeAckPayloadP *ap; | ||
6324 | |||
6325 | ac->task = NULL; | ||
6326 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6327 | "Sending ACK with %u components to %s\n", | ||
6328 | ac->num_acks, | ||
6329 | GNUNET_i2s (&ac->target)); | ||
6330 | GNUNET_assert (0 < ac->num_acks); | ||
6331 | ack->header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_RELIABILITY_ACK); | ||
6332 | ack->header.size = | ||
6333 | htons (sizeof(*ack) | ||
6334 | + ac->num_acks * sizeof(struct TransportCummulativeAckPayloadP)); | ||
6335 | ack->ack_counter = htonl (ac->ack_counter += ac->num_acks); | ||
6336 | ap = (struct TransportCummulativeAckPayloadP *) &ack[1]; | ||
6337 | for (unsigned int i = 0; i < ac->num_acks; i++) | ||
6338 | { | ||
6339 | ap[i].ack_uuid = ac->ack_uuids[i].ack_uuid; | ||
6340 | ap[i].ack_delay = GNUNET_TIME_relative_hton ( | ||
6341 | GNUNET_TIME_absolute_get_duration (ac->ack_uuids[i].receive_time)); | ||
6342 | } | ||
6343 | /*route_control_message_without_fc ( | ||
6344 | &ac->target, | ||
6345 | &ack->header, | ||
6346 | RMO_DV_ALLOWED);*/ | ||
6347 | vl = lookup_virtual_link (&ac->target); | ||
6348 | if ((NULL != vl) && (GNUNET_YES == vl->confirmed)) | ||
6349 | { | ||
6350 | route_control_message_without_fc ( | ||
6351 | vl, | ||
6352 | &ack->header, | ||
6353 | RMO_DV_ALLOWED); | ||
6354 | } | ||
6355 | else | ||
6356 | { | ||
6357 | /* Use route via neighbour */ | ||
6358 | n = lookup_neighbour (&ac->target); | ||
6359 | if (NULL != n) | ||
6360 | route_via_neighbour ( | ||
6361 | n, | ||
6362 | &ack->header, | ||
6363 | RMO_NONE); | ||
6364 | } | ||
6365 | ac->num_acks = 0; | ||
6366 | ac->task = GNUNET_SCHEDULER_add_delayed (ACK_CUMMULATOR_TIMEOUT, | ||
6367 | &destroy_ack_cummulator, | ||
6368 | ac); | ||
6369 | } | ||
6370 | |||
6371 | |||
6372 | /** | ||
6373 | * Transmit an acknowledgement for @a ack_uuid to @a pid delaying | ||
6374 | * transmission by at most @a ack_delay. | ||
6375 | * | ||
6376 | * @param pid target peer | ||
6377 | * @param ack_uuid UUID to ack | ||
6378 | * @param max_delay how long can the ACK wait | ||
6379 | */ | ||
6380 | static void | ||
6381 | cummulative_ack (const struct GNUNET_PeerIdentity *pid, | ||
6382 | const struct AcknowledgementUUIDP *ack_uuid, | ||
6383 | struct GNUNET_TIME_Absolute max_delay) | ||
6384 | { | ||
6385 | struct AcknowledgementCummulator *ac; | ||
6386 | |||
6387 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6388 | "Scheduling ACK %s for transmission to %s\n", | ||
6389 | GNUNET_uuid2s (&ack_uuid->value), | ||
6390 | GNUNET_i2s (pid)); | ||
6391 | ac = GNUNET_CONTAINER_multipeermap_get (ack_cummulators, pid); | ||
6392 | if (NULL == ac) | ||
6393 | { | ||
6394 | ac = GNUNET_new (struct AcknowledgementCummulator); | ||
6395 | ac->target = *pid; | ||
6396 | ac->min_transmission_time = max_delay; | ||
6397 | GNUNET_assert (GNUNET_YES == | ||
6398 | GNUNET_CONTAINER_multipeermap_put ( | ||
6399 | ack_cummulators, | ||
6400 | &ac->target, | ||
6401 | ac, | ||
6402 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)); | ||
6403 | } | ||
6404 | else | ||
6405 | { | ||
6406 | if (MAX_CUMMULATIVE_ACKS == ac->num_acks) | ||
6407 | { | ||
6408 | /* must run immediately, ack buffer full! */ | ||
6409 | transmit_cummulative_ack_cb (ac); | ||
6410 | } | ||
6411 | GNUNET_SCHEDULER_cancel (ac->task); | ||
6412 | ac->min_transmission_time = | ||
6413 | GNUNET_TIME_absolute_min (ac->min_transmission_time, max_delay); | ||
6414 | } | ||
6415 | GNUNET_assert (ac->num_acks < MAX_CUMMULATIVE_ACKS); | ||
6416 | ac->ack_uuids[ac->num_acks].receive_time = GNUNET_TIME_absolute_get (); | ||
6417 | ac->ack_uuids[ac->num_acks].ack_uuid = *ack_uuid; | ||
6418 | ac->num_acks++; | ||
6419 | ac->task = GNUNET_SCHEDULER_add_at (ac->min_transmission_time, | ||
6420 | &transmit_cummulative_ack_cb, | ||
6421 | ac); | ||
6422 | } | ||
6423 | |||
6424 | |||
6425 | /** | ||
6426 | * Closure for #find_by_message_uuid. | ||
6427 | */ | ||
6428 | struct FindByMessageUuidContext | ||
6429 | { | ||
6430 | /** | ||
6431 | * UUID to look for. | ||
6432 | */ | ||
6433 | struct MessageUUIDP message_uuid; | ||
6434 | |||
6435 | /** | ||
6436 | * Set to the reassembly context if found. | ||
6437 | */ | ||
6438 | struct ReassemblyContext *rc; | ||
6439 | }; | ||
6440 | |||
6441 | |||
6442 | /** | ||
6443 | * Iterator called to find a reassembly context by the message UUID in the | ||
6444 | * multihashmap32. | ||
6445 | * | ||
6446 | * @param cls a `struct FindByMessageUuidContext` | ||
6447 | * @param key a key (unused) | ||
6448 | * @param value a `struct ReassemblyContext` | ||
6449 | * @return #GNUNET_YES if not found, #GNUNET_NO if found | ||
6450 | */ | ||
6451 | static int | ||
6452 | find_by_message_uuid (void *cls, uint32_t key, void *value) | ||
6453 | { | ||
6454 | struct FindByMessageUuidContext *fc = cls; | ||
6455 | struct ReassemblyContext *rc = value; | ||
6456 | |||
6457 | (void) key; | ||
6458 | if (0 == GNUNET_memcmp (&fc->message_uuid, &rc->msg_uuid)) | ||
6459 | { | ||
6460 | fc->rc = rc; | ||
6461 | return GNUNET_NO; | ||
6462 | } | ||
6463 | return GNUNET_YES; | ||
6464 | } | ||
6465 | |||
6466 | |||
6467 | /** | ||
6468 | * Communicator gave us a fragment. Process the request. | ||
6469 | * | ||
6470 | * @param cls a `struct CommunicatorMessageContext` (must call | ||
6471 | * #finish_cmc_handling() when done) | ||
6472 | * @param fb the message that was received | ||
6473 | */ | ||
6474 | static void | ||
6475 | handle_fragment_box (void *cls, const struct TransportFragmentBoxMessage *fb) | ||
6476 | { | ||
6477 | struct CommunicatorMessageContext *cmc = cls; | ||
6478 | struct VirtualLink *vl; | ||
6479 | struct ReassemblyContext *rc; | ||
6480 | const struct GNUNET_MessageHeader *msg; | ||
6481 | uint16_t msize; | ||
6482 | uint16_t fsize; | ||
6483 | uint16_t frag_off; | ||
6484 | char *target; | ||
6485 | struct GNUNET_TIME_Relative cdelay; | ||
6486 | struct FindByMessageUuidContext fc; | ||
6487 | |||
6488 | vl = lookup_virtual_link (&cmc->im.sender); | ||
6489 | if ((NULL == vl) || (GNUNET_NO == vl->confirmed)) | ||
6490 | { | ||
6491 | struct GNUNET_SERVICE_Client *client = cmc->tc->client; | ||
6492 | |||
6493 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6494 | "No virtual link for %s to handle fragment\n", | ||
6495 | GNUNET_i2s (&cmc->im.sender)); | ||
6496 | GNUNET_break (0); | ||
6497 | finish_cmc_handling (cmc); | ||
6498 | GNUNET_SERVICE_client_drop (client); | ||
6499 | return; | ||
6500 | } | ||
6501 | if (NULL == vl->reassembly_map) | ||
6502 | { | ||
6503 | vl->reassembly_map = GNUNET_CONTAINER_multihashmap32_create (8); | ||
6504 | vl->reassembly_heap = | ||
6505 | GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN); | ||
6506 | vl->reassembly_timeout_task = | ||
6507 | GNUNET_SCHEDULER_add_delayed (REASSEMBLY_EXPIRATION, | ||
6508 | &reassembly_cleanup_task, | ||
6509 | vl); | ||
6510 | } | ||
6511 | msize = ntohs (fb->msg_size); | ||
6512 | fc.message_uuid = fb->msg_uuid; | ||
6513 | fc.rc = NULL; | ||
6514 | (void) GNUNET_CONTAINER_multihashmap32_get_multiple (vl->reassembly_map, | ||
6515 | fb->msg_uuid.uuid, | ||
6516 | &find_by_message_uuid, | ||
6517 | &fc); | ||
6518 | fsize = ntohs (fb->header.size) - sizeof(*fb); | ||
6519 | if (NULL == (rc = fc.rc)) | ||
6520 | { | ||
6521 | rc = GNUNET_malloc (sizeof(*rc) + msize /* reassembly payload buffer */ | ||
6522 | + (msize + 7) / 8 * sizeof(uint8_t) /* bitfield */); | ||
6523 | rc->msg_uuid = fb->msg_uuid; | ||
6524 | rc->virtual_link = vl; | ||
6525 | rc->msg_size = msize; | ||
6526 | rc->reassembly_timeout = | ||
6527 | GNUNET_TIME_relative_to_absolute (REASSEMBLY_EXPIRATION); | ||
6528 | rc->last_frag = GNUNET_TIME_absolute_get (); | ||
6529 | rc->hn = GNUNET_CONTAINER_heap_insert (vl->reassembly_heap, | ||
6530 | rc, | ||
6531 | rc->reassembly_timeout.abs_value_us); | ||
6532 | GNUNET_assert (GNUNET_OK == | ||
6533 | GNUNET_CONTAINER_multihashmap32_put ( | ||
6534 | vl->reassembly_map, | ||
6535 | rc->msg_uuid.uuid, | ||
6536 | rc, | ||
6537 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE)); | ||
6538 | target = (char *) &rc[1]; | ||
6539 | rc->bitfield = (uint8_t *) (target + rc->msg_size); | ||
6540 | if (fsize != rc->msg_size) | ||
6541 | rc->msg_missing = rc->msg_size; | ||
6542 | else | ||
6543 | rc->msg_missing = 0; | ||
6544 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6545 | "Received fragment with size %u at offset %u/%u %u bytes missing from %s for NEW message %" | ||
6546 | PRIu64 "\n", | ||
6547 | fsize, | ||
6548 | ntohs (fb->frag_off), | ||
6549 | msize, | ||
6550 | rc->msg_missing, | ||
6551 | GNUNET_i2s (&cmc->im.sender), | ||
6552 | fb->msg_uuid.uuid); | ||
6553 | } | ||
6554 | else | ||
6555 | { | ||
6556 | target = (char *) &rc[1]; | ||
6557 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6558 | "Received fragment at offset %u/%u from %s for message %u\n", | ||
6559 | ntohs (fb->frag_off), | ||
6560 | msize, | ||
6561 | GNUNET_i2s (&cmc->im.sender), | ||
6562 | (unsigned int) fb->msg_uuid.uuid); | ||
6563 | } | ||
6564 | if (msize != rc->msg_size) | ||
6565 | { | ||
6566 | GNUNET_break (0); | ||
6567 | finish_cmc_handling (cmc); | ||
6568 | return; | ||
6569 | } | ||
6570 | |||
6571 | /* reassemble */ | ||
6572 | if (0 == fsize) | ||
6573 | { | ||
6574 | GNUNET_break (0); | ||
6575 | finish_cmc_handling (cmc); | ||
6576 | return; | ||
6577 | } | ||
6578 | frag_off = ntohs (fb->frag_off); | ||
6579 | if (frag_off + fsize > msize) | ||
6580 | { | ||
6581 | /* Fragment (plus fragment size) exceeds message size! */ | ||
6582 | GNUNET_break_op (0); | ||
6583 | finish_cmc_handling (cmc); | ||
6584 | return; | ||
6585 | } | ||
6586 | memcpy (&target[frag_off], &fb[1], fsize); | ||
6587 | /* update bitfield and msg_missing */ | ||
6588 | for (unsigned int i = frag_off; i < frag_off + fsize; i++) | ||
6589 | { | ||
6590 | if (0 == (rc->bitfield[i / 8] & (1 << (i % 8)))) | ||
6591 | { | ||
6592 | rc->bitfield[i / 8] |= (1 << (i % 8)); | ||
6593 | rc->msg_missing--; | ||
6594 | } | ||
6595 | } | ||
6596 | |||
6597 | /* Compute cumulative ACK */ | ||
6598 | cdelay = GNUNET_TIME_absolute_get_duration (rc->last_frag); | ||
6599 | cdelay = GNUNET_TIME_relative_multiply (cdelay, rc->msg_missing / fsize); | ||
6600 | if (0 == rc->msg_missing) | ||
6601 | cdelay = GNUNET_TIME_UNIT_ZERO; | ||
6602 | cummulative_ack (&cmc->im.sender, | ||
6603 | &fb->ack_uuid, | ||
6604 | GNUNET_TIME_relative_to_absolute (cdelay)); | ||
6605 | rc->last_frag = GNUNET_TIME_absolute_get (); | ||
6606 | /* is reassembly complete? */ | ||
6607 | if (0 != rc->msg_missing) | ||
6608 | { | ||
6609 | finish_cmc_handling (cmc); | ||
6610 | return; | ||
6611 | } | ||
6612 | /* reassembly is complete, verify result */ | ||
6613 | msg = (const struct GNUNET_MessageHeader *) &rc[1]; | ||
6614 | if (ntohs (msg->size) != rc->msg_size) | ||
6615 | { | ||
6616 | GNUNET_break (0); | ||
6617 | free_reassembly_context (rc); | ||
6618 | finish_cmc_handling (cmc); | ||
6619 | return; | ||
6620 | } | ||
6621 | /* successful reassembly */ | ||
6622 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6623 | "Fragment reassembly complete for message %u\n", | ||
6624 | (unsigned int) fb->msg_uuid.uuid); | ||
6625 | /* FIXME: check that the resulting msg is NOT a | ||
6626 | DV Box or Reliability Box, as that is NOT allowed! */ | ||
6627 | cmc->mh = msg; | ||
6628 | demultiplex_with_cmc (cmc); | ||
6629 | /* FIXME-OPTIMIZE: really free here? Might be bad if fragments are still | ||
6630 | en-route and we forget that we finished this reassembly immediately! | ||
6631 | -> keep around until timeout? | ||
6632 | -> shorten timeout based on ACK? */ | ||
6633 | free_reassembly_context (rc); | ||
6634 | } | ||
6635 | |||
6636 | |||
6637 | /** | ||
6638 | * Communicator gave us a reliability box. Check the message. | ||
6639 | * | ||
6640 | * @param cls a `struct CommunicatorMessageContext` | ||
6641 | * @param rb the send message that was sent | ||
6642 | * @return #GNUNET_YES if message is well-formed | ||
6643 | */ | ||
6644 | static int | ||
6645 | check_reliability_box (void *cls, | ||
6646 | const struct TransportReliabilityBoxMessage *rb) | ||
6647 | { | ||
6648 | (void) cls; | ||
6649 | const struct GNUNET_MessageHeader *inbox = (const struct | ||
6650 | GNUNET_MessageHeader *) &rb[1]; | ||
6651 | |||
6652 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6653 | "check_send_msg with size %u: inner msg type %u and size %u (%lu %lu)\n", | ||
6654 | ntohs (rb->header.size), | ||
6655 | ntohs (inbox->type), | ||
6656 | ntohs (inbox->size), | ||
6657 | sizeof (struct TransportReliabilityBoxMessage), | ||
6658 | sizeof (struct GNUNET_MessageHeader)); | ||
6659 | GNUNET_MQ_check_boxed_message (rb); | ||
6660 | return GNUNET_YES; | ||
6661 | } | ||
6662 | |||
6663 | |||
6664 | /** | ||
6665 | * Communicator gave us a reliability box. Process the request. | ||
6666 | * | ||
6667 | * @param cls a `struct CommunicatorMessageContext` (must call | ||
6668 | * #finish_cmc_handling() when done) | ||
6669 | * @param rb the message that was received | ||
6670 | */ | ||
6671 | static void | ||
6672 | handle_reliability_box (void *cls, | ||
6673 | const struct TransportReliabilityBoxMessage *rb) | ||
6674 | { | ||
6675 | struct CommunicatorMessageContext *cmc = cls; | ||
6676 | const struct GNUNET_MessageHeader *inbox = | ||
6677 | (const struct GNUNET_MessageHeader *) &rb[1]; | ||
6678 | struct GNUNET_TIME_Relative rtt; | ||
6679 | |||
6680 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6681 | "Received reliability box from %s with UUID %s of type %u\n", | ||
6682 | GNUNET_i2s (&cmc->im.sender), | ||
6683 | GNUNET_uuid2s (&rb->ack_uuid.value), | ||
6684 | (unsigned int) ntohs (inbox->type)); | ||
6685 | rtt = GNUNET_TIME_UNIT_SECONDS; /* FIXME: should base this on "RTT", but we | ||
6686 | do not really have an RTT for the | ||
6687 | * incoming* queue (should we have | ||
6688 | the sender add it to the rb message?) */ | ||
6689 | cummulative_ack ( | ||
6690 | &cmc->im.sender, | ||
6691 | &rb->ack_uuid, | ||
6692 | (0 == ntohl (rb->ack_countdown)) | ||
6693 | ? GNUNET_TIME_UNIT_ZERO_ABS | ||
6694 | : GNUNET_TIME_relative_to_absolute ( | ||
6695 | GNUNET_TIME_relative_divide (rtt, 8 /* FIXME: magic constant */))); | ||
6696 | /* continue with inner message */ | ||
6697 | /* FIXME: check that inbox is NOT a DV Box, fragment or another | ||
6698 | reliability box (not allowed!) */ | ||
6699 | cmc->mh = inbox; | ||
6700 | demultiplex_with_cmc (cmc); | ||
6701 | } | ||
6702 | |||
6703 | |||
6704 | /** | ||
6705 | * Check if we have advanced to another age since the last time. If | ||
6706 | * so, purge ancient statistics (more than GOODPUT_AGING_SLOTS before | ||
6707 | * the current age) | ||
6708 | * | ||
6709 | * @param[in,out] pd data to update | ||
6710 | * @param age current age | ||
6711 | */ | ||
6712 | static void | ||
6713 | update_pd_age (struct PerformanceData *pd, unsigned int age) | ||
6714 | { | ||
6715 | unsigned int sage; | ||
6716 | |||
6717 | if (age == pd->last_age) | ||
6718 | return; /* nothing to do */ | ||
6719 | sage = GNUNET_MAX (pd->last_age, age - 2 * GOODPUT_AGING_SLOTS); | ||
6720 | for (unsigned int i = sage; i <= age - GOODPUT_AGING_SLOTS; i++) | ||
6721 | { | ||
6722 | struct TransmissionHistoryEntry *the = &pd->the[i % GOODPUT_AGING_SLOTS]; | ||
6723 | |||
6724 | the->bytes_sent = 0; | ||
6725 | the->bytes_received = 0; | ||
6726 | } | ||
6727 | pd->last_age = age; | ||
6728 | } | ||
6729 | |||
6730 | |||
6731 | /** | ||
6732 | * Update @a pd based on the latest @a rtt and the number of bytes | ||
6733 | * that were confirmed to be successfully transmitted. | ||
6734 | * | ||
6735 | * @param[in,out] pd data to update | ||
6736 | * @param rtt latest round-trip time | ||
6737 | * @param bytes_transmitted_ok number of bytes receiver confirmed as received | ||
6738 | */ | ||
6739 | static void | ||
6740 | update_performance_data (struct PerformanceData *pd, | ||
6741 | struct GNUNET_TIME_Relative rtt, | ||
6742 | uint16_t bytes_transmitted_ok) | ||
6743 | { | ||
6744 | uint64_t nval = rtt.rel_value_us; | ||
6745 | uint64_t oval = pd->aged_rtt.rel_value_us; | ||
6746 | unsigned int age = get_age (); | ||
6747 | struct TransmissionHistoryEntry *the = &pd->the[age % GOODPUT_AGING_SLOTS]; | ||
6748 | |||
6749 | if (oval == GNUNET_TIME_UNIT_FOREVER_REL.rel_value_us) | ||
6750 | pd->aged_rtt = rtt; | ||
6751 | else | ||
6752 | pd->aged_rtt.rel_value_us = (nval + 7 * oval) / 8; | ||
6753 | update_pd_age (pd, age); | ||
6754 | the->bytes_received += bytes_transmitted_ok; | ||
6755 | } | ||
6756 | |||
6757 | |||
6758 | /** | ||
6759 | * We have successfully transmitted data via @a q, update metrics. | ||
6760 | * | ||
6761 | * @param q queue to update | ||
6762 | * @param rtt round trip time observed | ||
6763 | * @param bytes_transmitted_ok number of bytes successfully transmitted | ||
6764 | */ | ||
6765 | static void | ||
6766 | update_queue_performance (struct Queue *q, | ||
6767 | struct GNUNET_TIME_Relative rtt, | ||
6768 | uint16_t bytes_transmitted_ok) | ||
6769 | { | ||
6770 | update_performance_data (&q->pd, rtt, bytes_transmitted_ok); | ||
6771 | } | ||
6772 | |||
6773 | |||
6774 | /** | ||
6775 | * We have successfully transmitted data via @a dvh, update metrics. | ||
6776 | * | ||
6777 | * @param dvh distance vector path data to update | ||
6778 | * @param rtt round trip time observed | ||
6779 | * @param bytes_transmitted_ok number of bytes successfully transmitted | ||
6780 | */ | ||
6781 | static void | ||
6782 | update_dvh_performance (struct DistanceVectorHop *dvh, | ||
6783 | struct GNUNET_TIME_Relative rtt, | ||
6784 | uint16_t bytes_transmitted_ok) | ||
6785 | { | ||
6786 | update_performance_data (&dvh->pd, rtt, bytes_transmitted_ok); | ||
6787 | } | ||
6788 | |||
6789 | |||
6790 | /** | ||
6791 | * We have completed transmission of @a pm, remove it from | ||
6792 | * the transmission queues (and if it is a fragment, continue | ||
6793 | * up the tree as necessary). | ||
6794 | * | ||
6795 | * @param pm pending message that was transmitted | ||
6796 | */ | ||
6797 | static void | ||
6798 | completed_pending_message (struct PendingMessage *pm) | ||
6799 | { | ||
6800 | struct PendingMessage *pos; | ||
6801 | |||
6802 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6803 | "Complete transmission of message %" PRIu64 " %u\n", | ||
6804 | pm->logging_uuid, | ||
6805 | pm->pmt); | ||
6806 | switch (pm->pmt) | ||
6807 | { | ||
6808 | case PMT_CORE: | ||
6809 | case PMT_RELIABILITY_BOX: | ||
6810 | /* Full message sent, we are done */ | ||
6811 | client_send_response (pm); | ||
6812 | return; | ||
6813 | |||
6814 | case PMT_FRAGMENT_BOX: | ||
6815 | /* Fragment sent over reliable channel */ | ||
6816 | pos = pm->frag_parent; | ||
6817 | GNUNET_CONTAINER_MDLL_remove (frag, pos->head_frag, pos->tail_frag, pm); | ||
6818 | free_pending_message (pm); | ||
6819 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6820 | "pos frag_off %lu pos bytes_msg %lu pmt %u parent %u\n", | ||
6821 | (unsigned long) pos->frag_off, | ||
6822 | (unsigned long) pos->bytes_msg, | ||
6823 | pos->pmt, | ||
6824 | NULL == pos->frag_parent ? 1 : 0); | ||
6825 | /* check if subtree is done */ | ||
6826 | while ((NULL == pos->head_frag) && (pos->frag_off == (pos->bytes_msg | ||
6827 | - sizeof(struct | ||
6828 | TransportFragmentBoxMessage))) | ||
6829 | && | ||
6830 | (NULL != pos->frag_parent)) | ||
6831 | { | ||
6832 | pm = pos; | ||
6833 | pos = pm->frag_parent; | ||
6834 | if ((NULL == pos) && (PMT_DV_BOX == pm->pmt)) | ||
6835 | { | ||
6836 | client_send_response (pm); | ||
6837 | return; | ||
6838 | } | ||
6839 | else if (PMT_DV_BOX == pm->pmt) | ||
6840 | { | ||
6841 | client_send_response (pos); | ||
6842 | return; | ||
6843 | } | ||
6844 | GNUNET_CONTAINER_MDLL_remove (frag, pos->head_frag, pos->tail_frag, pm); | ||
6845 | free_pending_message (pm); | ||
6846 | } | ||
6847 | |||
6848 | /* Was this the last applicable fragment? */ | ||
6849 | if ((NULL == pos->head_frag) && (NULL == pos->frag_parent || PMT_DV_BOX == | ||
6850 | pos->pmt) && | ||
6851 | (pos->frag_off == pos->bytes_msg)) | ||
6852 | client_send_response (pos); | ||
6853 | return; | ||
6854 | |||
6855 | case PMT_DV_BOX: | ||
6856 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6857 | "Completed transmission of message %" PRIu64 " (DV Box)\n", | ||
6858 | pm->logging_uuid); | ||
6859 | if (NULL != pm->frag_parent) | ||
6860 | { | ||
6861 | pos = pm->frag_parent; | ||
6862 | free_pending_message (pm); | ||
6863 | pos->bpm = NULL; | ||
6864 | client_send_response (pos); | ||
6865 | } | ||
6866 | else | ||
6867 | client_send_response (pm); | ||
6868 | return; | ||
6869 | } | ||
6870 | } | ||
6871 | |||
6872 | |||
6873 | /** | ||
6874 | * The @a pa was acknowledged, process the acknowledgement. | ||
6875 | * | ||
6876 | * @param pa the pending acknowledgement that was satisfied | ||
6877 | * @param ack_delay artificial delay from cumulative acks created by the | ||
6878 | * other peer | ||
6879 | */ | ||
6880 | static void | ||
6881 | handle_acknowledged (struct PendingAcknowledgement *pa, | ||
6882 | struct GNUNET_TIME_Relative ack_delay) | ||
6883 | { | ||
6884 | struct GNUNET_TIME_Relative delay; | ||
6885 | |||
6886 | delay = GNUNET_TIME_absolute_get_duration (pa->transmission_time); | ||
6887 | delay = GNUNET_TIME_relative_subtract (delay, ack_delay); | ||
6888 | if (NULL != pa->queue && 1 == pa->num_send) | ||
6889 | update_queue_performance (pa->queue, delay, pa->message_size); | ||
6890 | if (NULL != pa->dvh && 1 == pa->num_send) | ||
6891 | update_dvh_performance (pa->dvh, delay, pa->message_size); | ||
6892 | if (NULL != pa->pm) | ||
6893 | completed_pending_message (pa->pm); | ||
6894 | free_pending_acknowledgement (pa); | ||
6895 | } | ||
6896 | |||
6897 | |||
6898 | /** | ||
6899 | * Communicator gave us a reliability ack. Check it is well-formed. | ||
6900 | * | ||
6901 | * @param cls a `struct CommunicatorMessageContext` (unused) | ||
6902 | * @param ra the message that was received | ||
6903 | * @return #GNUNET_Ok if @a ra is well-formed | ||
6904 | */ | ||
6905 | static int | ||
6906 | check_reliability_ack (void *cls, | ||
6907 | const struct TransportReliabilityAckMessage *ra) | ||
6908 | { | ||
6909 | unsigned int n_acks; | ||
6910 | |||
6911 | (void) cls; | ||
6912 | n_acks = (ntohs (ra->header.size) - sizeof(*ra)) | ||
6913 | / sizeof(struct TransportCummulativeAckPayloadP); | ||
6914 | if (0 == n_acks) | ||
6915 | { | ||
6916 | GNUNET_break_op (0); | ||
6917 | return GNUNET_SYSERR; | ||
6918 | } | ||
6919 | if ((ntohs (ra->header.size) - sizeof(*ra)) != | ||
6920 | n_acks * sizeof(struct TransportCummulativeAckPayloadP)) | ||
6921 | { | ||
6922 | GNUNET_break_op (0); | ||
6923 | return GNUNET_SYSERR; | ||
6924 | } | ||
6925 | return GNUNET_OK; | ||
6926 | } | ||
6927 | |||
6928 | |||
6929 | /** | ||
6930 | * Communicator gave us a reliability ack. Process the request. | ||
6931 | * | ||
6932 | * @param cls a `struct CommunicatorMessageContext` (must call | ||
6933 | * #finish_cmc_handling() when done) | ||
6934 | * @param ra the message that was received | ||
6935 | */ | ||
6936 | static void | ||
6937 | handle_reliability_ack (void *cls, | ||
6938 | const struct TransportReliabilityAckMessage *ra) | ||
6939 | { | ||
6940 | struct CommunicatorMessageContext *cmc = cls; | ||
6941 | const struct TransportCummulativeAckPayloadP *ack; | ||
6942 | unsigned int n_acks; | ||
6943 | uint32_t ack_counter; | ||
6944 | |||
6945 | n_acks = (ntohs (ra->header.size) - sizeof(*ra)) | ||
6946 | / sizeof(struct TransportCummulativeAckPayloadP); | ||
6947 | ack = (const struct TransportCummulativeAckPayloadP *) &ra[1]; | ||
6948 | for (unsigned int i = 0; i < n_acks; i++) | ||
6949 | { | ||
6950 | struct PendingAcknowledgement *pa = | ||
6951 | GNUNET_CONTAINER_multiuuidmap_get (pending_acks, &ack[i].ack_uuid.value); | ||
6952 | if (NULL == pa) | ||
6953 | { | ||
6954 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
6955 | "Received ACK from %s with UUID %s which is unknown to us!\n", | ||
6956 | GNUNET_i2s (&cmc->im.sender), | ||
6957 | GNUNET_uuid2s (&ack[i].ack_uuid.value)); | ||
6958 | GNUNET_STATISTICS_update ( | ||
6959 | GST_stats, | ||
6960 | "# FRAGMENT_ACKS dropped, no matching pending message", | ||
6961 | 1, | ||
6962 | GNUNET_NO); | ||
6963 | continue; | ||
6964 | } | ||
6965 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
6966 | "Received ACK from %s with UUID %s\n", | ||
6967 | GNUNET_i2s (&cmc->im.sender), | ||
6968 | GNUNET_uuid2s (&ack[i].ack_uuid.value)); | ||
6969 | handle_acknowledged (pa, GNUNET_TIME_relative_ntoh (ack[i].ack_delay)); | ||
6970 | } | ||
6971 | |||
6972 | ack_counter = htonl (ra->ack_counter); | ||
6973 | (void) ack_counter; /* silence compiler warning for now */ | ||
6974 | // FIXME-OPTIMIZE: track ACK losses based on ack_counter somewhere! | ||
6975 | // (DV and/or Neighbour?) | ||
6976 | finish_cmc_handling (cmc); | ||
6977 | } | ||
6978 | |||
6979 | |||
6980 | /** | ||
6981 | * Communicator gave us a backchannel encapsulation. Check the message. | ||
6982 | * | ||
6983 | * @param cls a `struct CommunicatorMessageContext` | ||
6984 | * @param be the send message that was sent | ||
6985 | * @return #GNUNET_YES if message is well-formed | ||
6986 | */ | ||
6987 | static int | ||
6988 | check_backchannel_encapsulation ( | ||
6989 | void *cls, | ||
6990 | const struct TransportBackchannelEncapsulationMessage *be) | ||
6991 | { | ||
6992 | uint16_t size = ntohs (be->header.size) - sizeof(*be); | ||
6993 | const struct GNUNET_MessageHeader *inbox = | ||
6994 | (const struct GNUNET_MessageHeader *) &be[1]; | ||
6995 | const char *is; | ||
6996 | uint16_t isize; | ||
6997 | |||
6998 | (void) cls; | ||
6999 | if (ntohs (inbox->size) >= size) | ||
7000 | { | ||
7001 | GNUNET_break_op (0); | ||
7002 | return GNUNET_SYSERR; | ||
7003 | } | ||
7004 | isize = ntohs (inbox->size); | ||
7005 | is = ((const char *) inbox) + isize; | ||
7006 | size -= isize; | ||
7007 | if ('\0' != is[size - 1]) | ||
7008 | { | ||
7009 | GNUNET_break_op (0); | ||
7010 | return GNUNET_SYSERR; | ||
7011 | } | ||
7012 | return GNUNET_YES; | ||
7013 | } | ||
7014 | |||
7015 | |||
7016 | /** | ||
7017 | * Communicator gave us a backchannel encapsulation. Process the request. | ||
7018 | * (We are the destination of the backchannel here.) | ||
7019 | * | ||
7020 | * @param cls a `struct CommunicatorMessageContext` (must call | ||
7021 | * #finish_cmc_handling() when done) | ||
7022 | * @param be the message that was received | ||
7023 | */ | ||
7024 | static void | ||
7025 | handle_backchannel_encapsulation ( | ||
7026 | void *cls, | ||
7027 | const struct TransportBackchannelEncapsulationMessage *be) | ||
7028 | { | ||
7029 | struct CommunicatorMessageContext *cmc = cls; | ||
7030 | struct GNUNET_TRANSPORT_CommunicatorBackchannelIncoming *cbi; | ||
7031 | struct GNUNET_MQ_Envelope *env; | ||
7032 | struct TransportClient *tc; | ||
7033 | const struct GNUNET_MessageHeader *inbox = | ||
7034 | (const struct GNUNET_MessageHeader *) &be[1]; | ||
7035 | uint16_t isize = ntohs (inbox->size); | ||
7036 | const char *target_communicator = ((const char *) inbox) + isize; | ||
7037 | char *sender; | ||
7038 | char *self; | ||
7039 | |||
7040 | GNUNET_asprintf (&sender, | ||
7041 | "%s", | ||
7042 | GNUNET_i2s (&cmc->im.sender)); | ||
7043 | GNUNET_asprintf (&self, | ||
7044 | "%s", | ||
7045 | GNUNET_i2s (&GST_my_identity)); | ||
7046 | |||
7047 | /* Find client providing this communicator */ | ||
7048 | for (tc = clients_head; NULL != tc; tc = tc->next) | ||
7049 | if ((CT_COMMUNICATOR == tc->type) && | ||
7050 | (0 == | ||
7051 | strcmp (tc->details.communicator.address_prefix, target_communicator))) | ||
7052 | break; | ||
7053 | if (NULL == tc) | ||
7054 | { | ||
7055 | char *stastr; | ||
7056 | |||
7057 | GNUNET_asprintf ( | ||
7058 | &stastr, | ||
7059 | "# Backchannel message dropped: target communicator `%s' unknown", | ||
7060 | target_communicator); | ||
7061 | GNUNET_STATISTICS_update (GST_stats, stastr, 1, GNUNET_NO); | ||
7062 | GNUNET_free (stastr); | ||
7063 | finish_cmc_handling (cmc); | ||
7064 | return; | ||
7065 | } | ||
7066 | /* Finally, deliver backchannel message to communicator */ | ||
7067 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7068 | "Delivering backchannel message from %s to %s of type %u to %s\n", | ||
7069 | sender, | ||
7070 | self, | ||
7071 | ntohs (inbox->type), | ||
7072 | target_communicator); | ||
7073 | env = GNUNET_MQ_msg_extra ( | ||
7074 | cbi, | ||
7075 | isize, | ||
7076 | GNUNET_MESSAGE_TYPE_TRANSPORT_COMMUNICATOR_BACKCHANNEL_INCOMING); | ||
7077 | cbi->pid = cmc->im.sender; | ||
7078 | memcpy (&cbi[1], inbox, isize); | ||
7079 | GNUNET_MQ_send (tc->mq, env); | ||
7080 | finish_cmc_handling (cmc); | ||
7081 | } | ||
7082 | |||
7083 | |||
7084 | /** | ||
7085 | * Task called when we should check if any of the DV paths | ||
7086 | * we have learned to a target are due for garbage collection. | ||
7087 | * | ||
7088 | * Collects stale paths, and possibly frees the entire DV | ||
7089 | * entry if no paths are left. Otherwise re-schedules itself. | ||
7090 | * | ||
7091 | * @param cls a `struct DistanceVector` | ||
7092 | */ | ||
7093 | static void | ||
7094 | path_cleanup_cb (void *cls) | ||
7095 | { | ||
7096 | struct DistanceVector *dv = cls; | ||
7097 | struct DistanceVectorHop *pos; | ||
7098 | |||
7099 | dv->timeout_task = NULL; | ||
7100 | while (NULL != (pos = dv->dv_head)) | ||
7101 | { | ||
7102 | GNUNET_assert (dv == pos->dv); | ||
7103 | if (GNUNET_TIME_absolute_get_remaining (pos->timeout).rel_value_us > 0) | ||
7104 | break; | ||
7105 | free_distance_vector_hop (pos); | ||
7106 | } | ||
7107 | if (NULL == pos) | ||
7108 | { | ||
7109 | free_dv_route (dv); | ||
7110 | return; | ||
7111 | } | ||
7112 | dv->timeout_task = | ||
7113 | GNUNET_SCHEDULER_add_at (pos->timeout, &path_cleanup_cb, dv); | ||
7114 | } | ||
7115 | |||
7116 | |||
7117 | static void | ||
7118 | send_msg_from_cache (struct VirtualLink *vl) | ||
7119 | { | ||
7120 | |||
7121 | const struct GNUNET_PeerIdentity target = vl->target; | ||
7122 | |||
7123 | |||
7124 | if ((GNUNET_YES == is_ring_buffer_full) || (0 < ring_buffer_head)) | ||
7125 | { | ||
7126 | struct RingBufferEntry *ring_buffer_copy[RING_BUFFER_SIZE]; | ||
7127 | unsigned int tail = GNUNET_YES == is_ring_buffer_full ? ring_buffer_head : | ||
7128 | 0; | ||
7129 | unsigned int head = GNUNET_YES == is_ring_buffer_full ? RING_BUFFER_SIZE : | ||
7130 | ring_buffer_head; | ||
7131 | struct GNUNET_TRANSPORT_IncomingMessage im; | ||
7132 | struct CommunicatorMessageContext *cmc; | ||
7133 | struct RingBufferEntry *rbe; | ||
7134 | struct GNUNET_MessageHeader *mh; | ||
7135 | |||
7136 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7137 | "Sending from ring buffer, which has %u items\n", | ||
7138 | head); | ||
7139 | |||
7140 | ring_buffer_head = 0; | ||
7141 | for (unsigned int i = 0; i < head; i++) | ||
7142 | { | ||
7143 | rbe = ring_buffer[(i + tail) % RING_BUFFER_SIZE]; | ||
7144 | cmc = rbe->cmc; | ||
7145 | mh = rbe->mh; | ||
7146 | |||
7147 | im = cmc->im; | ||
7148 | // mh = cmc->mh; | ||
7149 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7150 | "Sending message of type %u to ring buffer target %s using vl target %s index %u\n", | ||
7151 | mh->type, | ||
7152 | GNUNET_i2s (&im.sender), | ||
7153 | GNUNET_i2s2 (&target), | ||
7154 | (i + tail) % RING_BUFFER_SIZE); | ||
7155 | if (0 == GNUNET_memcmp (&target, &im.sender)) | ||
7156 | { | ||
7157 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7158 | "Finish handling message of type %u and size %u\n", | ||
7159 | (unsigned int) ntohs (mh->type), | ||
7160 | (unsigned int) ntohs (mh->size)); | ||
7161 | finish_handling_raw_message (vl, mh, cmc, GNUNET_NO); | ||
7162 | GNUNET_free (mh); | ||
7163 | GNUNET_free (rbe->cmc); | ||
7164 | GNUNET_free (rbe); | ||
7165 | } | ||
7166 | else | ||
7167 | { | ||
7168 | ring_buffer_copy[ring_buffer_head] = rbe; | ||
7169 | ring_buffer_head++; | ||
7170 | } | ||
7171 | } | ||
7172 | |||
7173 | if ((GNUNET_YES == is_ring_buffer_full) && (RING_BUFFER_SIZE - 1 > | ||
7174 | ring_buffer_head)) | ||
7175 | { | ||
7176 | is_ring_buffer_full = GNUNET_NO; | ||
7177 | } | ||
7178 | |||
7179 | for (unsigned int i = 0; i < ring_buffer_head; i++) | ||
7180 | { | ||
7181 | ring_buffer[i] = ring_buffer_copy[i]; | ||
7182 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7183 | "ring_buffer_copy[i]->mh->type for i %u %u\n", | ||
7184 | i, | ||
7185 | ring_buffer_copy[i]->mh->type); | ||
7186 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7187 | "ring_buffer[i]->mh->type for i %u %u\n", | ||
7188 | i, | ||
7189 | ring_buffer[i]->mh->type); | ||
7190 | } | ||
7191 | |||
7192 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7193 | "%u items still in ring buffer\n", | ||
7194 | ring_buffer_head); | ||
7195 | } | ||
7196 | |||
7197 | if ((GNUNET_YES == is_ring_buffer_dv_full) || (0 < ring_buffer_dv_head)) | ||
7198 | { | ||
7199 | struct PendingMessage *ring_buffer_dv_copy[RING_BUFFER_SIZE]; | ||
7200 | struct PendingMessage *pm; | ||
7201 | unsigned int tail = GNUNET_YES == is_ring_buffer_dv_full ? | ||
7202 | ring_buffer_dv_head : | ||
7203 | 0; | ||
7204 | unsigned int head = GNUNET_YES == is_ring_buffer_dv_full ? | ||
7205 | RING_BUFFER_SIZE : | ||
7206 | ring_buffer_dv_head; | ||
7207 | |||
7208 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7209 | "Sending from ring buffer dv, which has %u items\n", | ||
7210 | head); | ||
7211 | |||
7212 | ring_buffer_dv_head = 0; | ||
7213 | for (unsigned int i = 0; i < head; i++) | ||
7214 | { | ||
7215 | pm = ring_buffer_dv[(i + tail) % RING_BUFFER_SIZE]; | ||
7216 | |||
7217 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7218 | "Sending to ring buffer target %s using vl target %s\n", | ||
7219 | GNUNET_i2s (&pm->target), | ||
7220 | GNUNET_i2s2 (&target)); | ||
7221 | if (0 == GNUNET_memcmp (&target, &pm->target)) | ||
7222 | { | ||
7223 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7224 | "Adding PendingMessage to vl, checking transmission.\n"); | ||
7225 | pm->vl = vl; | ||
7226 | GNUNET_CONTAINER_MDLL_insert (vl, | ||
7227 | vl->pending_msg_head, | ||
7228 | vl->pending_msg_tail, | ||
7229 | pm); | ||
7230 | |||
7231 | check_vl_transmission (vl); | ||
7232 | } | ||
7233 | else | ||
7234 | { | ||
7235 | ring_buffer_dv_copy[ring_buffer_dv_head] = pm; | ||
7236 | ring_buffer_dv_head++; | ||
7237 | } | ||
7238 | } | ||
7239 | |||
7240 | if (is_ring_buffer_dv_full && (RING_BUFFER_SIZE - 1 > ring_buffer_dv_head)) | ||
7241 | { | ||
7242 | is_ring_buffer_dv_full = GNUNET_NO; | ||
7243 | } | ||
7244 | |||
7245 | for (unsigned int i = 0; i < ring_buffer_dv_head; i++) | ||
7246 | ring_buffer_dv[i] = ring_buffer_dv_copy[i]; | ||
7247 | |||
7248 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7249 | "%u items still in ring buffer dv.\n", | ||
7250 | ring_buffer_dv_head); | ||
7251 | |||
7252 | } | ||
7253 | } | ||
7254 | |||
7255 | |||
7256 | /** | ||
7257 | * The @a hop is a validated path to the respective target | ||
7258 | * peer and we should tell core about it -- and schedule | ||
7259 | * a job to revoke the state. | ||
7260 | * | ||
7261 | * @param hop a path to some peer that is the reason for activation | ||
7262 | */ | ||
7263 | static void | ||
7264 | activate_core_visible_dv_path (struct DistanceVectorHop *hop) | ||
7265 | { | ||
7266 | struct DistanceVector *dv = hop->dv; | ||
7267 | struct VirtualLink *vl; | ||
7268 | |||
7269 | vl = lookup_virtual_link (&dv->target); | ||
7270 | if (NULL == vl) | ||
7271 | { | ||
7272 | |||
7273 | vl = GNUNET_new (struct VirtualLink); | ||
7274 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7275 | "Creating new virtual link %p to %s using DV!\n", | ||
7276 | vl, | ||
7277 | GNUNET_i2s (&dv->target)); | ||
7278 | vl->confirmed = GNUNET_YES; | ||
7279 | vl->message_uuid_ctr = | ||
7280 | GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK, UINT64_MAX); | ||
7281 | vl->target = dv->target; | ||
7282 | vl->core_recv_window = RECV_WINDOW_SIZE; | ||
7283 | vl->available_fc_window_size = DEFAULT_WINDOW_SIZE; | ||
7284 | vl->incoming_fc_window_size = DEFAULT_WINDOW_SIZE; | ||
7285 | GNUNET_break (GNUNET_YES == | ||
7286 | GNUNET_CONTAINER_multipeermap_put ( | ||
7287 | links, | ||
7288 | &vl->target, | ||
7289 | vl, | ||
7290 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)); | ||
7291 | vl->dv = dv; | ||
7292 | dv->vl = vl; | ||
7293 | vl->visibility_task = | ||
7294 | GNUNET_SCHEDULER_add_at (hop->path_valid_until, &check_link_down, vl); | ||
7295 | consider_sending_fc (vl); | ||
7296 | /* We lacked a confirmed connection to the target | ||
7297 | before, so tell CORE about it (finally!) */ | ||
7298 | cores_send_connect_info (&dv->target); | ||
7299 | send_msg_from_cache (vl); | ||
7300 | } | ||
7301 | else | ||
7302 | { | ||
7303 | /* Link was already up, remember dv is also now available and we are done */ | ||
7304 | vl->dv = dv; | ||
7305 | dv->vl = vl; | ||
7306 | if (GNUNET_NO == vl->confirmed) | ||
7307 | { | ||
7308 | vl->confirmed = GNUNET_YES; | ||
7309 | vl->visibility_task = | ||
7310 | GNUNET_SCHEDULER_add_at (hop->path_valid_until, &check_link_down, vl); | ||
7311 | consider_sending_fc (vl); | ||
7312 | /* We lacked a confirmed connection to the target | ||
7313 | before, so tell CORE about it (finally!) */ | ||
7314 | cores_send_connect_info (&dv->target); | ||
7315 | send_msg_from_cache (vl); | ||
7316 | } | ||
7317 | else | ||
7318 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7319 | "Virtual link to %s could now also use DV!\n", | ||
7320 | GNUNET_i2s (&dv->target)); | ||
7321 | } | ||
7322 | } | ||
7323 | |||
7324 | |||
7325 | /** | ||
7326 | * We have learned a @a path through the network to some other peer, add it to | ||
7327 | * our DV data structure (returning #GNUNET_YES on success). | ||
7328 | * | ||
7329 | * We do not add paths if we have a sufficient number of shorter | ||
7330 | * paths to this target already (returning #GNUNET_NO). | ||
7331 | * | ||
7332 | * We also do not add problematic paths, like those where we lack the first | ||
7333 | * hop in our neighbour list (i.e. due to a topology change) or where some | ||
7334 | * non-first hop is in our neighbour list (returning #GNUNET_SYSERR). | ||
7335 | * | ||
7336 | * @param path the path we learned, path[0] should be us, | ||
7337 | * and then path contains a valid path from us to | ||
7338 | * `path[path_len-1]` path[1] should be a direct neighbour (we should check!) | ||
7339 | * @param path_len number of entries on the @a path, at least three! | ||
7340 | * @param network_latency how long does the message take from us to | ||
7341 | * `path[path_len-1]`? set to "forever" if unknown | ||
7342 | * @param path_valid_until how long is this path considered validated? Maybe | ||
7343 | * be zero. | ||
7344 | * @return #GNUNET_YES on success, | ||
7345 | * #GNUNET_NO if we have better path(s) to the target | ||
7346 | * #GNUNET_SYSERR if the path is useless and/or invalid | ||
7347 | * (i.e. path[1] not a direct neighbour | ||
7348 | * or path[i+1] is a direct neighbour for i>0) | ||
7349 | */ | ||
7350 | static int | ||
7351 | learn_dv_path (const struct GNUNET_PeerIdentity *path, | ||
7352 | unsigned int path_len, | ||
7353 | struct GNUNET_TIME_Relative network_latency, | ||
7354 | struct GNUNET_TIME_Absolute path_valid_until) | ||
7355 | { | ||
7356 | struct DistanceVectorHop *hop; | ||
7357 | struct DistanceVector *dv; | ||
7358 | struct Neighbour *next_hop; | ||
7359 | unsigned int shorter_distance; | ||
7360 | |||
7361 | if (path_len < 3) | ||
7362 | { | ||
7363 | /* what a boring path! not allowed! */ | ||
7364 | GNUNET_break (0); | ||
7365 | return GNUNET_SYSERR; | ||
7366 | } | ||
7367 | GNUNET_assert (0 == GNUNET_memcmp (&GST_my_identity, &path[0])); | ||
7368 | next_hop = lookup_neighbour (&path[1]); | ||
7369 | if (NULL == next_hop) | ||
7370 | { | ||
7371 | /* next hop must be a neighbour, otherwise this whole thing is useless! */ | ||
7372 | GNUNET_break (0); | ||
7373 | return GNUNET_SYSERR; | ||
7374 | } | ||
7375 | for (unsigned int i = 2; i < path_len; i++) | ||
7376 | if (NULL != lookup_neighbour (&path[i])) | ||
7377 | { | ||
7378 | /* Useless path: we have a direct connection to some hop | ||
7379 | in the middle of the path, so this one is not even | ||
7380 | terribly useful for redundancy */ | ||
7381 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
7382 | "Path of %u hops useless: directly link to hop %u (%s)\n", | ||
7383 | path_len, | ||
7384 | i, | ||
7385 | GNUNET_i2s (&path[i])); | ||
7386 | GNUNET_STATISTICS_update (GST_stats, | ||
7387 | "# Useless DV path ignored: hop is neighbour", | ||
7388 | 1, | ||
7389 | GNUNET_NO); | ||
7390 | return GNUNET_SYSERR; | ||
7391 | } | ||
7392 | dv = GNUNET_CONTAINER_multipeermap_get (dv_routes, &path[path_len - 1]); | ||
7393 | if (NULL == dv) | ||
7394 | { | ||
7395 | dv = GNUNET_new (struct DistanceVector); | ||
7396 | dv->target = path[path_len - 1]; | ||
7397 | dv->timeout_task = GNUNET_SCHEDULER_add_delayed (DV_PATH_VALIDITY_TIMEOUT, | ||
7398 | &path_cleanup_cb, | ||
7399 | dv); | ||
7400 | GNUNET_assert (GNUNET_OK == | ||
7401 | GNUNET_CONTAINER_multipeermap_put ( | ||
7402 | dv_routes, | ||
7403 | &dv->target, | ||
7404 | dv, | ||
7405 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)); | ||
7406 | } | ||
7407 | /* Check if we have this path already! */ | ||
7408 | shorter_distance = 0; | ||
7409 | for (struct DistanceVectorHop *pos = dv->dv_head; NULL != pos; | ||
7410 | pos = pos->next_dv) | ||
7411 | { | ||
7412 | if (pos->distance < path_len - 3) | ||
7413 | shorter_distance++; | ||
7414 | /* Note that the distances in 'pos' excludes us (path[0]), | ||
7415 | the next_hop (path[1]) and the target so we need to subtract three | ||
7416 | and check next_hop explicitly */ | ||
7417 | if ((pos->distance == path_len - 3) && (pos->next_hop == next_hop)) | ||
7418 | { | ||
7419 | int match = GNUNET_YES; | ||
7420 | |||
7421 | for (unsigned int i = 0; i < pos->distance; i++) | ||
7422 | { | ||
7423 | if (0 != GNUNET_memcmp (&pos->path[i], &path[i + 2])) | ||
7424 | { | ||
7425 | match = GNUNET_NO; | ||
7426 | break; | ||
7427 | } | ||
7428 | } | ||
7429 | if (GNUNET_YES == match) | ||
7430 | { | ||
7431 | struct GNUNET_TIME_Relative last_timeout; | ||
7432 | |||
7433 | /* Re-discovered known path, update timeout */ | ||
7434 | GNUNET_STATISTICS_update (GST_stats, | ||
7435 | "# Known DV path refreshed", | ||
7436 | 1, | ||
7437 | GNUNET_NO); | ||
7438 | last_timeout = GNUNET_TIME_absolute_get_remaining (pos->timeout); | ||
7439 | pos->timeout = | ||
7440 | GNUNET_TIME_relative_to_absolute (DV_PATH_VALIDITY_TIMEOUT); | ||
7441 | pos->path_valid_until = | ||
7442 | GNUNET_TIME_absolute_max (pos->path_valid_until, path_valid_until); | ||
7443 | GNUNET_CONTAINER_MDLL_remove (dv, dv->dv_head, dv->dv_tail, pos); | ||
7444 | GNUNET_CONTAINER_MDLL_insert (dv, dv->dv_head, dv->dv_tail, pos); | ||
7445 | if (0 < | ||
7446 | GNUNET_TIME_absolute_get_remaining (path_valid_until).rel_value_us) | ||
7447 | activate_core_visible_dv_path (pos); | ||
7448 | if (last_timeout.rel_value_us < | ||
7449 | GNUNET_TIME_relative_subtract (DV_PATH_VALIDITY_TIMEOUT, | ||
7450 | DV_PATH_DISCOVERY_FREQUENCY) | ||
7451 | .rel_value_us) | ||
7452 | { | ||
7453 | /* Some peer send DV learn messages too often, we are learning | ||
7454 | the same path faster than it would be useful; do not forward! */ | ||
7455 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
7456 | "Rediscovered path too quickly, not forwarding further\n"); | ||
7457 | return GNUNET_NO; | ||
7458 | } | ||
7459 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7460 | "Refreshed known path to %s valid until %s, forwarding further\n", | ||
7461 | GNUNET_i2s (&dv->target), | ||
7462 | GNUNET_STRINGS_absolute_time_to_string ( | ||
7463 | pos->path_valid_until)); | ||
7464 | return GNUNET_YES; | ||
7465 | } | ||
7466 | } | ||
7467 | } | ||
7468 | /* Count how many shorter paths we have (incl. direct | ||
7469 | neighbours) before simply giving up on this one! */ | ||
7470 | if (shorter_distance >= MAX_DV_PATHS_TO_TARGET) | ||
7471 | { | ||
7472 | /* We have a shorter path already! */ | ||
7473 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7474 | "Have many shorter DV paths %s, not forwarding further\n", | ||
7475 | GNUNET_i2s (&dv->target)); | ||
7476 | return GNUNET_NO; | ||
7477 | } | ||
7478 | /* create new DV path entry */ | ||
7479 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7480 | "Discovered new DV path to %s valid until %s\n", | ||
7481 | GNUNET_i2s (&dv->target), | ||
7482 | GNUNET_STRINGS_absolute_time_to_string (path_valid_until)); | ||
7483 | hop = GNUNET_malloc (sizeof(struct DistanceVectorHop) | ||
7484 | + sizeof(struct GNUNET_PeerIdentity) * (path_len - 3)); | ||
7485 | hop->next_hop = next_hop; | ||
7486 | hop->dv = dv; | ||
7487 | hop->path = (const struct GNUNET_PeerIdentity *) &hop[1]; | ||
7488 | memcpy (&hop[1], | ||
7489 | &path[2], | ||
7490 | sizeof(struct GNUNET_PeerIdentity) * (path_len - 3)); | ||
7491 | hop->timeout = GNUNET_TIME_relative_to_absolute (DV_PATH_VALIDITY_TIMEOUT); | ||
7492 | hop->path_valid_until = path_valid_until; | ||
7493 | hop->distance = path_len - 3; | ||
7494 | hop->pd.aged_rtt = network_latency; | ||
7495 | GNUNET_CONTAINER_MDLL_insert (dv, dv->dv_head, dv->dv_tail, hop); | ||
7496 | GNUNET_CONTAINER_MDLL_insert (neighbour, | ||
7497 | next_hop->dv_head, | ||
7498 | next_hop->dv_tail, | ||
7499 | hop); | ||
7500 | if (0 < GNUNET_TIME_absolute_get_remaining (path_valid_until).rel_value_us) | ||
7501 | activate_core_visible_dv_path (hop); | ||
7502 | return GNUNET_YES; | ||
7503 | } | ||
7504 | |||
7505 | |||
7506 | /** | ||
7507 | * Communicator gave us a DV learn message. Check the message. | ||
7508 | * | ||
7509 | * @param cls a `struct CommunicatorMessageContext` | ||
7510 | * @param dvl the send message that was sent | ||
7511 | * @return #GNUNET_YES if message is well-formed | ||
7512 | */ | ||
7513 | static int | ||
7514 | check_dv_learn (void *cls, const struct TransportDVLearnMessage *dvl) | ||
7515 | { | ||
7516 | uint16_t size = ntohs (dvl->header.size); | ||
7517 | uint16_t num_hops = ntohs (dvl->num_hops); | ||
7518 | const struct DVPathEntryP *hops = (const struct DVPathEntryP *) &dvl[1]; | ||
7519 | |||
7520 | (void) cls; | ||
7521 | if (size != sizeof(*dvl) + num_hops * sizeof(struct DVPathEntryP)) | ||
7522 | { | ||
7523 | GNUNET_break_op (0); | ||
7524 | return GNUNET_SYSERR; | ||
7525 | } | ||
7526 | if (num_hops > MAX_DV_HOPS_ALLOWED) | ||
7527 | { | ||
7528 | GNUNET_break_op (0); | ||
7529 | return GNUNET_SYSERR; | ||
7530 | } | ||
7531 | for (unsigned int i = 0; i < num_hops; i++) | ||
7532 | { | ||
7533 | if (0 == GNUNET_memcmp (&dvl->initiator, &hops[i].hop)) | ||
7534 | { | ||
7535 | GNUNET_break_op (0); | ||
7536 | return GNUNET_SYSERR; | ||
7537 | } | ||
7538 | if (0 == GNUNET_memcmp (&GST_my_identity, &hops[i].hop)) | ||
7539 | { | ||
7540 | GNUNET_break_op (0); | ||
7541 | return GNUNET_SYSERR; | ||
7542 | } | ||
7543 | } | ||
7544 | return GNUNET_YES; | ||
7545 | } | ||
7546 | |||
7547 | |||
7548 | /** | ||
7549 | * Build and forward a DV learn message to @a next_hop. | ||
7550 | * | ||
7551 | * @param next_hop peer to send the message to | ||
7552 | * @param msg message received | ||
7553 | * @param bi_history bitmask specifying hops on path that were bidirectional | ||
7554 | * @param nhops length of the @a hops array | ||
7555 | * @param hops path the message traversed so far | ||
7556 | * @param in_time when did we receive the message, used to calculate network | ||
7557 | * delay | ||
7558 | */ | ||
7559 | static void | ||
7560 | forward_dv_learn (const struct GNUNET_PeerIdentity *next_hop, | ||
7561 | const struct TransportDVLearnMessage *msg, | ||
7562 | uint16_t bi_history, | ||
7563 | uint16_t nhops, | ||
7564 | const struct DVPathEntryP *hops, | ||
7565 | struct GNUNET_TIME_Absolute in_time) | ||
7566 | { | ||
7567 | struct Neighbour *n; | ||
7568 | struct VirtualLink *vl; | ||
7569 | struct DVPathEntryP *dhops; | ||
7570 | char buf[sizeof(struct TransportDVLearnMessage) | ||
7571 | + (nhops + 1) * sizeof(struct DVPathEntryP)] GNUNET_ALIGN; | ||
7572 | struct TransportDVLearnMessage *fwd = (struct TransportDVLearnMessage *) buf; | ||
7573 | struct GNUNET_TIME_Relative nnd; | ||
7574 | |||
7575 | /* compute message for forwarding */ | ||
7576 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7577 | "Forwarding DV learn message originating from %s to %s\n", | ||
7578 | GNUNET_i2s (&msg->initiator), | ||
7579 | GNUNET_i2s2 (next_hop)); | ||
7580 | GNUNET_assert (nhops < MAX_DV_HOPS_ALLOWED); | ||
7581 | fwd->header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_DV_LEARN); | ||
7582 | fwd->header.size = htons (sizeof(struct TransportDVLearnMessage) | ||
7583 | + (nhops + 1) * sizeof(struct DVPathEntryP)); | ||
7584 | fwd->num_hops = htons (nhops + 1); | ||
7585 | fwd->bidirectional = htons (bi_history); | ||
7586 | nnd = GNUNET_TIME_relative_add (GNUNET_TIME_absolute_get_duration (in_time), | ||
7587 | GNUNET_TIME_relative_ntoh ( | ||
7588 | msg->non_network_delay)); | ||
7589 | fwd->non_network_delay = GNUNET_TIME_relative_hton (nnd); | ||
7590 | fwd->init_sig = msg->init_sig; | ||
7591 | fwd->initiator = msg->initiator; | ||
7592 | fwd->challenge = msg->challenge; | ||
7593 | fwd->monotonic_time = msg->monotonic_time; | ||
7594 | dhops = (struct DVPathEntryP *) &fwd[1]; | ||
7595 | GNUNET_memcpy (dhops, hops, sizeof(struct DVPathEntryP) * nhops); | ||
7596 | dhops[nhops].hop = GST_my_identity; | ||
7597 | { | ||
7598 | struct DvHopPS dhp = { | ||
7599 | .purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_TRANSPORT_DV_HOP), | ||
7600 | .purpose.size = htonl (sizeof(dhp)), | ||
7601 | .pred = (0 == nhops) ? msg->initiator : dhops[nhops - 1].hop, | ||
7602 | .succ = *next_hop, | ||
7603 | .challenge = msg->challenge | ||
7604 | }; | ||
7605 | GNUNET_CRYPTO_eddsa_sign (GST_my_private_key, | ||
7606 | &dhp, | ||
7607 | &dhops[nhops].hop_sig); | ||
7608 | } | ||
7609 | /*route_control_message_without_fc (next_hop, | ||
7610 | &fwd->header, | ||
7611 | RMO_UNCONFIRMED_ALLOWED);*/ | ||
7612 | vl = lookup_virtual_link (next_hop); | ||
7613 | if ((NULL != vl) && (GNUNET_YES == vl->confirmed)) | ||
7614 | { | ||
7615 | route_control_message_without_fc (vl, | ||
7616 | &fwd->header, | ||
7617 | RMO_UNCONFIRMED_ALLOWED); | ||
7618 | } | ||
7619 | else | ||
7620 | { | ||
7621 | /* Use route via neighbour */ | ||
7622 | n = lookup_neighbour (next_hop); | ||
7623 | if (NULL != n) | ||
7624 | route_via_neighbour ( | ||
7625 | n, | ||
7626 | &fwd->header, | ||
7627 | RMO_UNCONFIRMED_ALLOWED); | ||
7628 | } | ||
7629 | } | ||
7630 | |||
7631 | |||
7632 | /** | ||
7633 | * Check signature of type #GNUNET_SIGNATURE_PURPOSE_TRANSPORT_DV_INITIATOR | ||
7634 | * | ||
7635 | * @param sender_monotonic_time monotonic time of the initiator | ||
7636 | * @param init the signer | ||
7637 | * @param challenge the challenge that was signed | ||
7638 | * @param init_sig signature presumably by @a init | ||
7639 | * @return #GNUNET_OK if the signature is valid | ||
7640 | */ | ||
7641 | static int | ||
7642 | validate_dv_initiator_signature ( | ||
7643 | struct GNUNET_TIME_AbsoluteNBO sender_monotonic_time, | ||
7644 | const struct GNUNET_PeerIdentity *init, | ||
7645 | const struct GNUNET_CRYPTO_ChallengeNonceP *challenge, | ||
7646 | const struct GNUNET_CRYPTO_EddsaSignature *init_sig) | ||
7647 | { | ||
7648 | struct DvInitPS ip = { .purpose.purpose = htonl ( | ||
7649 | GNUNET_SIGNATURE_PURPOSE_TRANSPORT_DV_INITIATOR), | ||
7650 | .purpose.size = htonl (sizeof(ip)), | ||
7651 | .monotonic_time = sender_monotonic_time, | ||
7652 | .challenge = *challenge }; | ||
7653 | |||
7654 | if ( | ||
7655 | GNUNET_OK != | ||
7656 | GNUNET_CRYPTO_eddsa_verify (GNUNET_SIGNATURE_PURPOSE_TRANSPORT_DV_INITIATOR, | ||
7657 | &ip, | ||
7658 | init_sig, | ||
7659 | &init->public_key)) | ||
7660 | { | ||
7661 | GNUNET_break_op (0); | ||
7662 | return GNUNET_SYSERR; | ||
7663 | } | ||
7664 | return GNUNET_OK; | ||
7665 | } | ||
7666 | |||
7667 | |||
7668 | /** | ||
7669 | * Closure for #dv_neighbour_selection and #dv_neighbour_transmission. | ||
7670 | */ | ||
7671 | struct NeighbourSelectionContext | ||
7672 | { | ||
7673 | /** | ||
7674 | * Original message we received. | ||
7675 | */ | ||
7676 | const struct TransportDVLearnMessage *dvl; | ||
7677 | |||
7678 | /** | ||
7679 | * The hops taken. | ||
7680 | */ | ||
7681 | const struct DVPathEntryP *hops; | ||
7682 | |||
7683 | /** | ||
7684 | * Time we received the message. | ||
7685 | */ | ||
7686 | struct GNUNET_TIME_Absolute in_time; | ||
7687 | |||
7688 | /** | ||
7689 | * Offsets of the selected peers. | ||
7690 | */ | ||
7691 | uint32_t selections[MAX_DV_DISCOVERY_SELECTION]; | ||
7692 | |||
7693 | /** | ||
7694 | * Number of peers eligible for selection. | ||
7695 | */ | ||
7696 | unsigned int num_eligible; | ||
7697 | |||
7698 | /** | ||
7699 | * Number of peers that were selected for forwarding. | ||
7700 | */ | ||
7701 | unsigned int num_selections; | ||
7702 | |||
7703 | /** | ||
7704 | * Number of hops in @e hops | ||
7705 | */ | ||
7706 | uint16_t nhops; | ||
7707 | |||
7708 | /** | ||
7709 | * Bitmap of bidirectional connections encountered. | ||
7710 | */ | ||
7711 | uint16_t bi_history; | ||
7712 | }; | ||
7713 | |||
7714 | |||
7715 | /** | ||
7716 | * Function called for each neighbour during #handle_dv_learn. | ||
7717 | * | ||
7718 | * @param cls a `struct NeighbourSelectionContext *` | ||
7719 | * @param pid identity of the peer | ||
7720 | * @param value a `struct Neighbour` | ||
7721 | * @return #GNUNET_YES (always) | ||
7722 | */ | ||
7723 | static int | ||
7724 | dv_neighbour_selection (void *cls, | ||
7725 | const struct GNUNET_PeerIdentity *pid, | ||
7726 | void *value) | ||
7727 | { | ||
7728 | struct NeighbourSelectionContext *nsc = cls; | ||
7729 | |||
7730 | (void) value; | ||
7731 | if (0 == GNUNET_memcmp (pid, &nsc->dvl->initiator)) | ||
7732 | return GNUNET_YES; /* skip initiator */ | ||
7733 | for (unsigned int i = 0; i < nsc->nhops; i++) | ||
7734 | if (0 == GNUNET_memcmp (pid, &nsc->hops[i].hop)) | ||
7735 | return GNUNET_YES; | ||
7736 | /* skip peers on path */ | ||
7737 | nsc->num_eligible++; | ||
7738 | return GNUNET_YES; | ||
7739 | } | ||
7740 | |||
7741 | |||
7742 | /** | ||
7743 | * Function called for each neighbour during #handle_dv_learn. | ||
7744 | * We call #forward_dv_learn() on the neighbour(s) selected | ||
7745 | * during #dv_neighbour_selection(). | ||
7746 | * | ||
7747 | * @param cls a `struct NeighbourSelectionContext *` | ||
7748 | * @param pid identity of the peer | ||
7749 | * @param value a `struct Neighbour` | ||
7750 | * @return #GNUNET_YES (always) | ||
7751 | */ | ||
7752 | static int | ||
7753 | dv_neighbour_transmission (void *cls, | ||
7754 | const struct GNUNET_PeerIdentity *pid, | ||
7755 | void *value) | ||
7756 | { | ||
7757 | struct NeighbourSelectionContext *nsc = cls; | ||
7758 | |||
7759 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7760 | "transmission %s\n", | ||
7761 | GNUNET_i2s (pid)); | ||
7762 | (void) value; | ||
7763 | if (0 == GNUNET_memcmp (pid, &nsc->dvl->initiator)) | ||
7764 | return GNUNET_YES; /* skip initiator */ | ||
7765 | for (unsigned int i = 0; i < nsc->nhops; i++) | ||
7766 | if (0 == GNUNET_memcmp (pid, &nsc->hops[i].hop)) | ||
7767 | return GNUNET_YES; | ||
7768 | /* skip peers on path */ | ||
7769 | for (unsigned int i = 0; i < nsc->num_selections; i++) | ||
7770 | { | ||
7771 | if (nsc->selections[i] == nsc->num_eligible) | ||
7772 | { | ||
7773 | forward_dv_learn (pid, | ||
7774 | nsc->dvl, | ||
7775 | nsc->bi_history, | ||
7776 | nsc->nhops, | ||
7777 | nsc->hops, | ||
7778 | nsc->in_time); | ||
7779 | break; | ||
7780 | } | ||
7781 | } | ||
7782 | nsc->num_eligible++; | ||
7783 | return GNUNET_YES; | ||
7784 | } | ||
7785 | |||
7786 | |||
7787 | /** | ||
7788 | * Computes the number of neighbours we should forward a DVInit | ||
7789 | * message to given that it has so far taken @a hops_taken hops | ||
7790 | * though the network and that the number of neighbours we have | ||
7791 | * in total is @a neighbour_count, out of which @a eligible_count | ||
7792 | * are not yet on the path. | ||
7793 | * | ||
7794 | * NOTE: technically we might want to include NSE in the formula to | ||
7795 | * get a better grip on the overall network size. However, for now | ||
7796 | * using NSE here would create a dependency issue in the build system. | ||
7797 | * => Left for later, hardcoded to 50 for now. | ||
7798 | * | ||
7799 | * The goal of the fomula is that we want to reach a total of LOG(NSE) | ||
7800 | * peers via DV (`target_total`). We want the reach to be spread out | ||
7801 | * over various distances to the origin, with a bias towards shorter | ||
7802 | * distances. | ||
7803 | * | ||
7804 | * We make the strong assumption that the network topology looks | ||
7805 | * "similar" at other hops, in particular the @a neighbour_count | ||
7806 | * should be comparable at other hops. | ||
7807 | * | ||
7808 | * If the local neighbourhood is densely connected, we expect that @a | ||
7809 | * eligible_count is close to @a neighbour_count minus @a hops_taken | ||
7810 | * as a lot of the path is already known. In that case, we should | ||
7811 | * forward to few(er) peers to try to find a path out of the | ||
7812 | * neighbourhood. OTOH, if @a eligible_count is close to @a | ||
7813 | * neighbour_count, we should forward to many peers as we are either | ||
7814 | * still close to the origin (i.e. @a hops_taken is small) or because | ||
7815 | * we managed to get beyond a local cluster. We express this as | ||
7816 | * the `boost_factor` using the square of the fraction of eligible | ||
7817 | * neighbours (so if only 50% are eligible, we boost by 1/4, but if | ||
7818 | * 99% are eligible, the 'boost' will be almost 1). | ||
7819 | * | ||
7820 | * Second, the more hops we have taken, the larger the problem of an | ||
7821 | * exponential traffic explosion gets. So we take the `target_total`, | ||
7822 | * and compute our degree such that at each distance d 2^{-d} peers | ||
7823 | * are selected (corrected by the `boost_factor`). | ||
7824 | * | ||
7825 | * @param hops_taken number of hops DVInit has travelled so far | ||
7826 | * @param neighbour_count number of neighbours we have in total | ||
7827 | * @param eligible_count number of neighbours we could in | ||
7828 | * theory forward to | ||
7829 | */ | ||
7830 | static unsigned int | ||
7831 | calculate_fork_degree (unsigned int hops_taken, | ||
7832 | unsigned int neighbour_count, | ||
7833 | unsigned int eligible_count) | ||
7834 | { | ||
7835 | double target_total = 50.0; /* FIXME: use LOG(NSE)? */ | ||
7836 | double eligible_ratio = | ||
7837 | ((double) eligible_count) / ((double) neighbour_count); | ||
7838 | double boost_factor = eligible_ratio * eligible_ratio; | ||
7839 | unsigned int rnd; | ||
7840 | double left; | ||
7841 | |||
7842 | if (hops_taken >= 64) | ||
7843 | { | ||
7844 | GNUNET_break (0); | ||
7845 | return 0; /* precaution given bitshift below */ | ||
7846 | } | ||
7847 | for (unsigned int i = 1; i < hops_taken; i++) | ||
7848 | { | ||
7849 | /* For each hop, subtract the expected number of targets | ||
7850 | reached at distance d (so what remains divided by 2^d) */ | ||
7851 | target_total -= (target_total * boost_factor / (1LLU << i)); | ||
7852 | } | ||
7853 | rnd = | ||
7854 | (unsigned int) floor (target_total * boost_factor / (1LLU << hops_taken)); | ||
7855 | /* round up or down probabilistically depending on how close we were | ||
7856 | when floor()ing to rnd */ | ||
7857 | left = target_total - (double) rnd; | ||
7858 | if (UINT32_MAX * left > | ||
7859 | GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX)) | ||
7860 | rnd++; /* round up */ | ||
7861 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7862 | "Forwarding DV learn message of %u hops %u(/%u/%u) times\n", | ||
7863 | hops_taken, | ||
7864 | rnd, | ||
7865 | eligible_count, | ||
7866 | neighbour_count); | ||
7867 | return rnd; | ||
7868 | } | ||
7869 | |||
7870 | |||
7871 | /** | ||
7872 | * Function called when peerstore is done storing a DV monotonic time. | ||
7873 | * | ||
7874 | * @param cls a `struct Neighbour` | ||
7875 | * @param success #GNUNET_YES if peerstore was successful | ||
7876 | */ | ||
7877 | static void | ||
7878 | neighbour_store_dvmono_cb (void *cls, int success) | ||
7879 | { | ||
7880 | struct Neighbour *n = cls; | ||
7881 | |||
7882 | n->sc = NULL; | ||
7883 | if (GNUNET_YES != success) | ||
7884 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
7885 | "Failed to store other peer's monotonic time in peerstore!\n"); | ||
7886 | } | ||
7887 | |||
7888 | |||
7889 | /** | ||
7890 | * Communicator gave us a DV learn message. Process the request. | ||
7891 | * | ||
7892 | * @param cls a `struct CommunicatorMessageContext` (must call | ||
7893 | * #finish_cmc_handling() when done) | ||
7894 | * @param dvl the message that was received | ||
7895 | */ | ||
7896 | static void | ||
7897 | handle_dv_learn (void *cls, const struct TransportDVLearnMessage *dvl) | ||
7898 | { | ||
7899 | struct CommunicatorMessageContext *cmc = cls; | ||
7900 | enum GNUNET_TRANSPORT_CommunicatorCharacteristics cc; | ||
7901 | int bi_hop; | ||
7902 | uint16_t nhops; | ||
7903 | uint16_t bi_history; | ||
7904 | const struct DVPathEntryP *hops; | ||
7905 | int do_fwd; | ||
7906 | int did_initiator; | ||
7907 | struct GNUNET_TIME_Absolute in_time; | ||
7908 | struct Neighbour *n; | ||
7909 | |||
7910 | nhops = ntohs (dvl->num_hops); /* 0 = sender is initiator */ | ||
7911 | bi_history = ntohs (dvl->bidirectional); | ||
7912 | hops = (const struct DVPathEntryP *) &dvl[1]; | ||
7913 | if (0 == nhops) | ||
7914 | { | ||
7915 | /* sanity check */ | ||
7916 | if (0 != GNUNET_memcmp (&dvl->initiator, &cmc->im.sender)) | ||
7917 | { | ||
7918 | GNUNET_break (0); | ||
7919 | finish_cmc_handling (cmc); | ||
7920 | return; | ||
7921 | } | ||
7922 | } | ||
7923 | else | ||
7924 | { | ||
7925 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7926 | "handle dv learn message last hop %s\n", | ||
7927 | GNUNET_i2s (&hops[nhops - 1].hop)); | ||
7928 | /* sanity check */ | ||
7929 | if (0 != GNUNET_memcmp (&hops[nhops - 1].hop, &cmc->im.sender)) | ||
7930 | { | ||
7931 | GNUNET_break (0); | ||
7932 | finish_cmc_handling (cmc); | ||
7933 | return; | ||
7934 | } | ||
7935 | } | ||
7936 | |||
7937 | GNUNET_assert (CT_COMMUNICATOR == cmc->tc->type); | ||
7938 | cc = cmc->tc->details.communicator.cc; | ||
7939 | bi_hop = (GNUNET_TRANSPORT_CC_RELIABLE == | ||
7940 | cc); // FIXME: add bi-directional flag to cc? | ||
7941 | in_time = GNUNET_TIME_absolute_get (); | ||
7942 | |||
7943 | /* continue communicator here, everything else can happen asynchronous! */ | ||
7944 | finish_cmc_handling (cmc); | ||
7945 | |||
7946 | n = lookup_neighbour (&dvl->initiator); | ||
7947 | if (NULL != n) | ||
7948 | { | ||
7949 | if ((n->dv_monotime_available == GNUNET_YES) && | ||
7950 | (GNUNET_TIME_absolute_ntoh (dvl->monotonic_time).abs_value_us < | ||
7951 | n->last_dv_learn_monotime.abs_value_us)) | ||
7952 | { | ||
7953 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7954 | "DV learn from %s discarded due to time travel", | ||
7955 | GNUNET_i2s (&dvl->initiator)); | ||
7956 | GNUNET_STATISTICS_update (GST_stats, | ||
7957 | "# DV learn discarded due to time travel", | ||
7958 | 1, | ||
7959 | GNUNET_NO); | ||
7960 | return; | ||
7961 | } | ||
7962 | if (GNUNET_OK != validate_dv_initiator_signature (dvl->monotonic_time, | ||
7963 | &dvl->initiator, | ||
7964 | &dvl->challenge, | ||
7965 | &dvl->init_sig)) | ||
7966 | { | ||
7967 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7968 | "DV learn signature from %s invalid\n", | ||
7969 | GNUNET_i2s (&dvl->initiator)); | ||
7970 | GNUNET_break_op (0); | ||
7971 | return; | ||
7972 | } | ||
7973 | n->last_dv_learn_monotime = GNUNET_TIME_absolute_ntoh (dvl->monotonic_time); | ||
7974 | if (GNUNET_YES == n->dv_monotime_available) | ||
7975 | { | ||
7976 | if (NULL != n->sc) | ||
7977 | { | ||
7978 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
7979 | "store cancel\n"); | ||
7980 | GNUNET_PEERSTORE_store_cancel (n->sc); | ||
7981 | } | ||
7982 | n->sc = | ||
7983 | GNUNET_PEERSTORE_store (peerstore, | ||
7984 | "transport", | ||
7985 | &dvl->initiator, | ||
7986 | GNUNET_PEERSTORE_TRANSPORT_DVLEARN_MONOTIME, | ||
7987 | &dvl->monotonic_time, | ||
7988 | sizeof(dvl->monotonic_time), | ||
7989 | GNUNET_TIME_UNIT_FOREVER_ABS, | ||
7990 | GNUNET_PEERSTORE_STOREOPTION_REPLACE, | ||
7991 | &neighbour_store_dvmono_cb, | ||
7992 | n); | ||
7993 | } | ||
7994 | } | ||
7995 | /* OPTIMIZE-FIXME: asynchronously (!) verify signatures!, | ||
7996 | If signature verification load too high, implement random drop strategy */ | ||
7997 | for (unsigned int i = 0; i < nhops; i++) | ||
7998 | { | ||
7999 | struct DvHopPS dhp = { .purpose.purpose = | ||
8000 | htonl (GNUNET_SIGNATURE_PURPOSE_TRANSPORT_DV_HOP), | ||
8001 | .purpose.size = htonl (sizeof(dhp)), | ||
8002 | .pred = (0 == i) ? dvl->initiator : hops[i - 1].hop, | ||
8003 | .succ = (nhops == i + 1) ? GST_my_identity | ||
8004 | : hops[i + 1].hop, | ||
8005 | .challenge = dvl->challenge }; | ||
8006 | |||
8007 | if (GNUNET_OK != | ||
8008 | GNUNET_CRYPTO_eddsa_verify (GNUNET_SIGNATURE_PURPOSE_TRANSPORT_DV_HOP, | ||
8009 | &dhp, | ||
8010 | &hops[i].hop_sig, | ||
8011 | &hops[i].hop.public_key)) | ||
8012 | { | ||
8013 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8014 | "DV learn from %s signature of hop %u invalid\n", | ||
8015 | GNUNET_i2s (&dvl->initiator), | ||
8016 | i); | ||
8017 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8018 | "signature of hop %s invalid\n", | ||
8019 | GNUNET_i2s (&hops[i].hop)); | ||
8020 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8021 | "pred %s\n", | ||
8022 | GNUNET_i2s (&dhp.pred)); | ||
8023 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8024 | "succ %s\n", | ||
8025 | GNUNET_i2s (&dhp.succ)); | ||
8026 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8027 | "hash %s\n", | ||
8028 | GNUNET_sh2s (&dhp.challenge.value)); | ||
8029 | GNUNET_break_op (0); | ||
8030 | return; | ||
8031 | } | ||
8032 | } | ||
8033 | if (GNUNET_EXTRA_LOGGING > 0) | ||
8034 | { | ||
8035 | char *path; | ||
8036 | |||
8037 | path = GNUNET_strdup (GNUNET_i2s (&dvl->initiator)); | ||
8038 | for (unsigned int i = 0; i < nhops; i++) | ||
8039 | { | ||
8040 | char *tmp; | ||
8041 | |||
8042 | GNUNET_asprintf (&tmp, | ||
8043 | "%s%s%s", | ||
8044 | path, | ||
8045 | (bi_history & (1 << (nhops - i))) ? "<->" : "-->", | ||
8046 | GNUNET_i2s (&hops[i].hop)); | ||
8047 | GNUNET_free (path); | ||
8048 | path = tmp; | ||
8049 | } | ||
8050 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8051 | "Received DVInit via %s%s%s\n", | ||
8052 | path, | ||
8053 | bi_hop ? "<->" : "-->", | ||
8054 | GNUNET_i2s (&GST_my_identity)); | ||
8055 | GNUNET_free (path); | ||
8056 | } | ||
8057 | do_fwd = GNUNET_YES; | ||
8058 | if (0 == GNUNET_memcmp (&GST_my_identity, &dvl->initiator)) | ||
8059 | { | ||
8060 | struct GNUNET_PeerIdentity path[nhops + 1]; | ||
8061 | struct GNUNET_TIME_Relative host_latency_sum; | ||
8062 | struct GNUNET_TIME_Relative latency; | ||
8063 | struct GNUNET_TIME_Relative network_latency; | ||
8064 | |||
8065 | /* We initiated this, learn the forward path! */ | ||
8066 | path[0] = GST_my_identity; | ||
8067 | path[1] = hops[0].hop; | ||
8068 | host_latency_sum = GNUNET_TIME_relative_ntoh (dvl->non_network_delay); | ||
8069 | |||
8070 | // Need also something to lookup initiation time | ||
8071 | // to compute RTT! -> add RTT argument here? | ||
8072 | latency = GNUNET_TIME_absolute_get_duration (GNUNET_TIME_absolute_ntoh ( | ||
8073 | dvl->monotonic_time)); | ||
8074 | GNUNET_assert (latency.rel_value_us >= host_latency_sum.rel_value_us); | ||
8075 | // latency = GNUNET_TIME_UNIT_FOREVER_REL; // FIXME: initialize properly | ||
8076 | // (based on dvl->challenge, we can identify time of origin!) | ||
8077 | |||
8078 | network_latency = GNUNET_TIME_relative_subtract (latency, host_latency_sum); | ||
8079 | /* assumption: latency on all links is the same */ | ||
8080 | network_latency = GNUNET_TIME_relative_divide (network_latency, nhops); | ||
8081 | |||
8082 | for (unsigned int i = 2; i <= nhops; i++) | ||
8083 | { | ||
8084 | struct GNUNET_TIME_Relative ilat; | ||
8085 | |||
8086 | /* assumption: linear latency increase per hop */ | ||
8087 | ilat = GNUNET_TIME_relative_multiply (network_latency, i); | ||
8088 | path[i] = hops[i - 1].hop; | ||
8089 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8090 | "Learned path with %u hops to %s with latency %s\n", | ||
8091 | i, | ||
8092 | GNUNET_i2s (&path[i]), | ||
8093 | GNUNET_STRINGS_relative_time_to_string (ilat, GNUNET_YES)); | ||
8094 | learn_dv_path (path, | ||
8095 | i + 1, | ||
8096 | ilat, | ||
8097 | GNUNET_TIME_relative_to_absolute ( | ||
8098 | ADDRESS_VALIDATION_LIFETIME)); | ||
8099 | } | ||
8100 | /* as we initiated, do not forward again (would be circular!) */ | ||
8101 | do_fwd = GNUNET_NO; | ||
8102 | return; | ||
8103 | } | ||
8104 | if (bi_hop) | ||
8105 | { | ||
8106 | /* last hop was bi-directional, we could learn something here! */ | ||
8107 | struct GNUNET_PeerIdentity path[nhops + 2]; | ||
8108 | |||
8109 | path[0] = GST_my_identity; | ||
8110 | path[1] = hops[nhops - 1].hop; /* direct neighbour == predecessor! */ | ||
8111 | for (unsigned int i = 0; i < nhops; i++) | ||
8112 | { | ||
8113 | int iret; | ||
8114 | |||
8115 | if (0 == (bi_history & (1 << i))) | ||
8116 | break; /* i-th hop not bi-directional, stop learning! */ | ||
8117 | if (i == nhops - 1) | ||
8118 | { | ||
8119 | path[i + 2] = dvl->initiator; | ||
8120 | } | ||
8121 | else | ||
8122 | { | ||
8123 | path[i + 2] = hops[nhops - i - 2].hop; | ||
8124 | } | ||
8125 | |||
8126 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8127 | "Learned inverse path with %u hops to %s\n", | ||
8128 | i + 2, | ||
8129 | GNUNET_i2s (&path[i + 2])); | ||
8130 | iret = learn_dv_path (path, | ||
8131 | i + 3, | ||
8132 | GNUNET_TIME_UNIT_FOREVER_REL, | ||
8133 | GNUNET_TIME_relative_to_absolute ( | ||
8134 | ADDRESS_VALIDATION_LIFETIME)); | ||
8135 | if (GNUNET_SYSERR == iret) | ||
8136 | { | ||
8137 | /* path invalid or too long to be interesting for US, thus should also | ||
8138 | not be interesting to our neighbours, cut path when forwarding to | ||
8139 | 'i' hops, except of course for the one that goes back to the | ||
8140 | initiator */ | ||
8141 | GNUNET_STATISTICS_update (GST_stats, | ||
8142 | "# DV learn not forwarded due invalidity of path", | ||
8143 | 1, | ||
8144 | GNUNET_NO); | ||
8145 | do_fwd = GNUNET_NO; | ||
8146 | break; | ||
8147 | } | ||
8148 | if ((GNUNET_NO == iret) && (nhops == i + 1)) | ||
8149 | { | ||
8150 | /* we have better paths, and this is the longest target, | ||
8151 | so there cannot be anything interesting later */ | ||
8152 | GNUNET_STATISTICS_update (GST_stats, | ||
8153 | "# DV learn not forwarded, got better paths", | ||
8154 | 1, | ||
8155 | GNUNET_NO); | ||
8156 | do_fwd = GNUNET_NO; | ||
8157 | break; | ||
8158 | } | ||
8159 | } | ||
8160 | } | ||
8161 | if (MAX_DV_HOPS_ALLOWED == nhops) | ||
8162 | { | ||
8163 | /* At limit, we're out of here! */ | ||
8164 | return; | ||
8165 | } | ||
8166 | |||
8167 | /* Forward to initiator, if path non-trivial and possible */ | ||
8168 | bi_history = (bi_history << 1) | (bi_hop ? 1 : 0); | ||
8169 | did_initiator = GNUNET_NO; | ||
8170 | if ((1 <= nhops) && | ||
8171 | (GNUNET_YES == | ||
8172 | GNUNET_CONTAINER_multipeermap_contains (neighbours, &dvl->initiator))) | ||
8173 | { | ||
8174 | /* send back to origin! */ | ||
8175 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8176 | "Sending DVL back to initiator %s\n", | ||
8177 | GNUNET_i2s (&dvl->initiator)); | ||
8178 | forward_dv_learn (&dvl->initiator, dvl, bi_history, nhops, hops, in_time); | ||
8179 | did_initiator = GNUNET_YES; | ||
8180 | } | ||
8181 | /* We forward under two conditions: either we still learned something | ||
8182 | ourselves (do_fwd), or the path was darn short and thus the initiator is | ||
8183 | likely to still be very interested in this (and we did NOT already | ||
8184 | send it back to the initiator) */ | ||
8185 | if ((do_fwd) || ((nhops < MIN_DV_PATH_LENGTH_FOR_INITIATOR) && | ||
8186 | (GNUNET_NO == did_initiator))) | ||
8187 | { | ||
8188 | /* Pick random neighbours that are not yet on the path */ | ||
8189 | struct NeighbourSelectionContext nsc; | ||
8190 | unsigned int n_cnt; | ||
8191 | |||
8192 | n_cnt = GNUNET_CONTAINER_multipeermap_size (neighbours); | ||
8193 | nsc.nhops = nhops; | ||
8194 | nsc.dvl = dvl; | ||
8195 | nsc.bi_history = bi_history; | ||
8196 | nsc.hops = hops; | ||
8197 | nsc.in_time = in_time; | ||
8198 | nsc.num_eligible = 0; | ||
8199 | GNUNET_CONTAINER_multipeermap_iterate (neighbours, | ||
8200 | &dv_neighbour_selection, | ||
8201 | &nsc); | ||
8202 | if (0 == nsc.num_eligible) | ||
8203 | return; /* done here, cannot forward to anyone else */ | ||
8204 | nsc.num_selections = calculate_fork_degree (nhops, n_cnt, nsc.num_eligible); | ||
8205 | nsc.num_selections = | ||
8206 | GNUNET_MIN (MAX_DV_DISCOVERY_SELECTION, nsc.num_selections); | ||
8207 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8208 | "Forwarding DVL to %u other peers\n", | ||
8209 | nsc.num_selections); | ||
8210 | for (unsigned int i = 0; i < nsc.num_selections; i++) | ||
8211 | nsc.selections[i] = | ||
8212 | (nsc.num_selections == n_cnt) | ||
8213 | ? i /* all were selected, avoid collisions by chance */ | ||
8214 | : GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, n_cnt); | ||
8215 | nsc.num_eligible = 0; | ||
8216 | GNUNET_CONTAINER_multipeermap_iterate (neighbours, | ||
8217 | &dv_neighbour_transmission, | ||
8218 | &nsc); | ||
8219 | } | ||
8220 | } | ||
8221 | |||
8222 | |||
8223 | /** | ||
8224 | * Communicator gave us a DV box. Check the message. | ||
8225 | * | ||
8226 | * @param cls a `struct CommunicatorMessageContext` | ||
8227 | * @param dvb the send message that was sent | ||
8228 | * @return #GNUNET_YES if message is well-formed | ||
8229 | */ | ||
8230 | static int | ||
8231 | check_dv_box (void *cls, const struct TransportDVBoxMessage *dvb) | ||
8232 | { | ||
8233 | uint16_t size = ntohs (dvb->header.size); | ||
8234 | uint16_t num_hops = ntohs (dvb->num_hops); | ||
8235 | const struct GNUNET_PeerIdentity *hops = | ||
8236 | (const struct GNUNET_PeerIdentity *) &dvb[1]; | ||
8237 | |||
8238 | (void) cls; | ||
8239 | if (size < sizeof(*dvb) + num_hops * sizeof(struct GNUNET_PeerIdentity) | ||
8240 | + sizeof(struct GNUNET_MessageHeader)) | ||
8241 | { | ||
8242 | GNUNET_break_op (0); | ||
8243 | return GNUNET_SYSERR; | ||
8244 | } | ||
8245 | /* This peer must not be on the path */ | ||
8246 | for (unsigned int i = 0; i < num_hops; i++) | ||
8247 | if (0 == GNUNET_memcmp (&hops[i], &GST_my_identity)) | ||
8248 | { | ||
8249 | GNUNET_break_op (0); | ||
8250 | return GNUNET_SYSERR; | ||
8251 | } | ||
8252 | return GNUNET_YES; | ||
8253 | } | ||
8254 | |||
8255 | |||
8256 | /** | ||
8257 | * Create a DV Box message and queue it for transmission to | ||
8258 | * @a next_hop. | ||
8259 | * | ||
8260 | * @param next_hop peer to receive the message next | ||
8261 | * @param total_hops how many hops did the message take so far | ||
8262 | * @param num_hops length of the @a hops array | ||
8263 | * @param origin origin of the message | ||
8264 | * @param hops next peer(s) to the destination, including destination | ||
8265 | * @param payload payload of the box | ||
8266 | * @param payload_size number of bytes in @a payload | ||
8267 | */ | ||
8268 | static void | ||
8269 | forward_dv_box (struct Neighbour *next_hop, | ||
8270 | struct TransportDVBoxMessage *hdr, | ||
8271 | uint16_t total_hops, | ||
8272 | uint16_t num_hops, | ||
8273 | const struct GNUNET_PeerIdentity *hops, | ||
8274 | const void *enc_payload, | ||
8275 | uint16_t enc_payload_size) | ||
8276 | { | ||
8277 | struct VirtualLink *vl = next_hop->vl; | ||
8278 | struct PendingMessage *pm; | ||
8279 | size_t msg_size = sizeof(struct TransportDVBoxMessage) | ||
8280 | + num_hops * sizeof(struct GNUNET_PeerIdentity) | ||
8281 | + enc_payload_size; | ||
8282 | char *buf; | ||
8283 | char msg_buf[msg_size] GNUNET_ALIGN; | ||
8284 | struct GNUNET_PeerIdentity *dhops; | ||
8285 | |||
8286 | hdr->num_hops = htons (num_hops); | ||
8287 | hdr->total_hops = htons (total_hops); | ||
8288 | hdr->header.size = htons (msg_size); | ||
8289 | memcpy (msg_buf, hdr, sizeof(*hdr)); | ||
8290 | dhops = (struct GNUNET_PeerIdentity *) &msg_buf[sizeof(struct | ||
8291 | TransportDVBoxMessage)]; | ||
8292 | memcpy (dhops, hops, num_hops * sizeof(struct GNUNET_PeerIdentity)); | ||
8293 | memcpy (&dhops[num_hops], enc_payload, enc_payload_size); | ||
8294 | |||
8295 | if (GNUNET_YES == ntohs (hdr->without_fc)) | ||
8296 | { | ||
8297 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8298 | "Forwarding control message (payload size %u) in DV Box to next hop %s (%u/%u) \n", | ||
8299 | enc_payload_size, | ||
8300 | GNUNET_i2s (&next_hop->pid), | ||
8301 | (unsigned int) num_hops, | ||
8302 | (unsigned int) total_hops); | ||
8303 | route_via_neighbour (next_hop, (const struct | ||
8304 | GNUNET_MessageHeader *) msg_buf, | ||
8305 | RMO_ANYTHING_GOES); | ||
8306 | } | ||
8307 | else | ||
8308 | { | ||
8309 | pm = GNUNET_malloc (sizeof(struct PendingMessage) + msg_size); | ||
8310 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8311 | "2 created pm %p storing vl %p \n", | ||
8312 | pm, | ||
8313 | vl); | ||
8314 | pm->pmt = PMT_DV_BOX; | ||
8315 | pm->vl = vl; | ||
8316 | pm->target = next_hop->pid; | ||
8317 | pm->timeout = GNUNET_TIME_relative_to_absolute (DV_FORWARD_TIMEOUT); | ||
8318 | pm->logging_uuid = logging_uuid_gen++; | ||
8319 | pm->prefs = GNUNET_MQ_PRIO_BACKGROUND; | ||
8320 | pm->bytes_msg = msg_size; | ||
8321 | buf = (char *) &pm[1]; | ||
8322 | memcpy (buf, msg_buf, msg_size); | ||
8323 | |||
8324 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8325 | "Created pending message %" PRIu64 | ||
8326 | " for DV Box with next hop %s (%u/%u)\n", | ||
8327 | pm->logging_uuid, | ||
8328 | GNUNET_i2s (&next_hop->pid), | ||
8329 | (unsigned int) num_hops, | ||
8330 | (unsigned int) total_hops); | ||
8331 | |||
8332 | if ((NULL != vl) && (GNUNET_YES == vl->confirmed)) | ||
8333 | { | ||
8334 | GNUNET_CONTAINER_MDLL_insert (vl, | ||
8335 | vl->pending_msg_head, | ||
8336 | vl->pending_msg_tail, | ||
8337 | pm); | ||
8338 | |||
8339 | check_vl_transmission (vl); | ||
8340 | } | ||
8341 | else | ||
8342 | { | ||
8343 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8344 | "The virtual link is not ready for forwarding a DV Box with payload, storing PendingMessage in ring buffer.\n"); | ||
8345 | |||
8346 | if (NULL != ring_buffer_dv[ring_buffer_dv_head]) | ||
8347 | { | ||
8348 | struct PendingMessage *pm_old = ring_buffer_dv[ring_buffer_dv_head]; | ||
8349 | |||
8350 | GNUNET_free (pm_old); | ||
8351 | } | ||
8352 | ring_buffer_dv[ring_buffer_dv_head] = pm; | ||
8353 | if (RING_BUFFER_SIZE - 1 == ring_buffer_dv_head) | ||
8354 | { | ||
8355 | ring_buffer_dv_head = 0; | ||
8356 | is_ring_buffer_dv_full = GNUNET_YES; | ||
8357 | } | ||
8358 | else | ||
8359 | ring_buffer_dv_head++; | ||
8360 | |||
8361 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8362 | "%u items stored in DV ring buffer\n", | ||
8363 | GNUNET_YES == is_ring_buffer_dv_full ? RING_BUFFER_SIZE : | ||
8364 | ring_buffer_dv_head); | ||
8365 | } | ||
8366 | } | ||
8367 | } | ||
8368 | |||
8369 | |||
8370 | /** | ||
8371 | * Free data structures associated with @a b. | ||
8372 | * | ||
8373 | * @param b data structure to release | ||
8374 | */ | ||
8375 | static void | ||
8376 | free_backtalker (struct Backtalker *b) | ||
8377 | { | ||
8378 | if (NULL != b->get) | ||
8379 | { | ||
8380 | GNUNET_PEERSTORE_iteration_stop (b->get); | ||
8381 | b->get = NULL; | ||
8382 | GNUNET_assert (NULL != b->cmc); | ||
8383 | finish_cmc_handling (b->cmc); | ||
8384 | b->cmc = NULL; | ||
8385 | } | ||
8386 | if (NULL != b->task) | ||
8387 | { | ||
8388 | GNUNET_SCHEDULER_cancel (b->task); | ||
8389 | b->task = NULL; | ||
8390 | } | ||
8391 | if (NULL != b->sc) | ||
8392 | { | ||
8393 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8394 | "store cancel\n"); | ||
8395 | GNUNET_PEERSTORE_store_cancel (b->sc); | ||
8396 | b->sc = NULL; | ||
8397 | } | ||
8398 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8399 | "Removing backtalker for %s\n", | ||
8400 | GNUNET_i2s (&b->pid)); | ||
8401 | GNUNET_assert ( | ||
8402 | GNUNET_YES == | ||
8403 | GNUNET_CONTAINER_multipeermap_remove (backtalkers, &b->pid, b)); | ||
8404 | GNUNET_free (b); | ||
8405 | } | ||
8406 | |||
8407 | |||
8408 | /** | ||
8409 | * Callback to free backtalker records. | ||
8410 | * | ||
8411 | * @param cls NULL | ||
8412 | * @param pid unused | ||
8413 | * @param value a `struct Backtalker` | ||
8414 | * @return #GNUNET_OK (always) | ||
8415 | */ | ||
8416 | static int | ||
8417 | free_backtalker_cb (void *cls, | ||
8418 | const struct GNUNET_PeerIdentity *pid, | ||
8419 | void *value) | ||
8420 | { | ||
8421 | struct Backtalker *b = value; | ||
8422 | |||
8423 | (void) cls; | ||
8424 | (void) pid; | ||
8425 | free_backtalker (b); | ||
8426 | return GNUNET_OK; | ||
8427 | } | ||
8428 | |||
8429 | |||
8430 | /** | ||
8431 | * Function called when it is time to clean up a backtalker. | ||
8432 | * | ||
8433 | * @param cls a `struct Backtalker` | ||
8434 | */ | ||
8435 | static void | ||
8436 | backtalker_timeout_cb (void *cls) | ||
8437 | { | ||
8438 | struct Backtalker *b = cls; | ||
8439 | |||
8440 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8441 | "backtalker timeout.\n"); | ||
8442 | b->task = NULL; | ||
8443 | if (0 != GNUNET_TIME_absolute_get_remaining (b->timeout).rel_value_us) | ||
8444 | { | ||
8445 | b->task = GNUNET_SCHEDULER_add_at (b->timeout, &backtalker_timeout_cb, b); | ||
8446 | return; | ||
8447 | } | ||
8448 | GNUNET_assert (NULL == b->sc); | ||
8449 | free_backtalker (b); | ||
8450 | } | ||
8451 | |||
8452 | |||
8453 | /** | ||
8454 | * Function called with the monotonic time of a backtalker | ||
8455 | * by PEERSTORE. Updates the time and continues processing. | ||
8456 | * | ||
8457 | * @param cls a `struct Backtalker` | ||
8458 | * @param record the information found, NULL for the last call | ||
8459 | * @param emsg error message | ||
8460 | */ | ||
8461 | static void | ||
8462 | backtalker_monotime_cb (void *cls, | ||
8463 | const struct GNUNET_PEERSTORE_Record *record, | ||
8464 | const char *emsg) | ||
8465 | { | ||
8466 | struct Backtalker *b = cls; | ||
8467 | struct GNUNET_TIME_AbsoluteNBO *mtbe; | ||
8468 | struct GNUNET_TIME_Absolute mt; | ||
8469 | |||
8470 | (void) emsg; | ||
8471 | if (NULL == record) | ||
8472 | { | ||
8473 | /* we're done with #backtalker_monotime_cb() invocations, | ||
8474 | continue normal processing */ | ||
8475 | b->get = NULL; | ||
8476 | GNUNET_assert (NULL != b->cmc); | ||
8477 | b->cmc->mh = (const struct GNUNET_MessageHeader *) &b[1]; | ||
8478 | if (0 != b->body_size) | ||
8479 | demultiplex_with_cmc (b->cmc); | ||
8480 | else | ||
8481 | finish_cmc_handling (b->cmc); | ||
8482 | b->cmc = NULL; | ||
8483 | return; | ||
8484 | } | ||
8485 | if (sizeof(*mtbe) != record->value_size) | ||
8486 | { | ||
8487 | GNUNET_PEERSTORE_iteration_next (b->get, 1); | ||
8488 | GNUNET_break (0); | ||
8489 | return; | ||
8490 | } | ||
8491 | mtbe = record->value; | ||
8492 | mt = GNUNET_TIME_absolute_ntoh (*mtbe); | ||
8493 | if (mt.abs_value_us > b->monotonic_time.abs_value_us) | ||
8494 | { | ||
8495 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8496 | "Backtalker message from %s dropped, monotime in the past\n", | ||
8497 | GNUNET_i2s (&b->pid)); | ||
8498 | GNUNET_STATISTICS_update ( | ||
8499 | GST_stats, | ||
8500 | "# Backchannel messages dropped: monotonic time not increasing", | ||
8501 | 1, | ||
8502 | GNUNET_NO); | ||
8503 | b->monotonic_time = mt; | ||
8504 | /* Setting body_size to 0 prevents call to #forward_backchannel_payload() | ||
8505 | */ | ||
8506 | b->body_size = 0; | ||
8507 | } | ||
8508 | GNUNET_PEERSTORE_iteration_next (b->get, 1); | ||
8509 | } | ||
8510 | |||
8511 | |||
8512 | /** | ||
8513 | * Function called by PEERSTORE when the store operation of | ||
8514 | * a backtalker's monotonic time is complete. | ||
8515 | * | ||
8516 | * @param cls the `struct Backtalker` | ||
8517 | * @param success #GNUNET_OK on success | ||
8518 | */ | ||
8519 | static void | ||
8520 | backtalker_monotime_store_cb (void *cls, int success) | ||
8521 | { | ||
8522 | struct Backtalker *b = cls; | ||
8523 | |||
8524 | if (GNUNET_OK != success) | ||
8525 | { | ||
8526 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
8527 | "Failed to store backtalker's monotonic time in PEERSTORE!\n"); | ||
8528 | } | ||
8529 | b->sc = NULL; | ||
8530 | if (NULL != b->task) | ||
8531 | { | ||
8532 | GNUNET_SCHEDULER_cancel (b->task); | ||
8533 | b->task = NULL; | ||
8534 | } | ||
8535 | b->task = GNUNET_SCHEDULER_add_at (b->timeout, &backtalker_timeout_cb, b); | ||
8536 | } | ||
8537 | |||
8538 | |||
8539 | /** | ||
8540 | * The backtalker @a b monotonic time changed. Update PEERSTORE. | ||
8541 | * | ||
8542 | * @param b a backtalker with updated monotonic time | ||
8543 | */ | ||
8544 | static void | ||
8545 | update_backtalker_monotime (struct Backtalker *b) | ||
8546 | { | ||
8547 | struct GNUNET_TIME_AbsoluteNBO mtbe; | ||
8548 | |||
8549 | if (NULL != b->sc) | ||
8550 | { | ||
8551 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8552 | "store cancel before store with sc %p\n", | ||
8553 | b->sc); | ||
8554 | /*GNUNET_PEERSTORE_store_cancel (b->sc); | ||
8555 | b->sc = NULL;*/ | ||
8556 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8557 | "store cancel before store with sc %p is null\n", | ||
8558 | b->sc); | ||
8559 | } | ||
8560 | else | ||
8561 | { | ||
8562 | GNUNET_SCHEDULER_cancel (b->task); | ||
8563 | b->task = NULL; | ||
8564 | } | ||
8565 | mtbe = GNUNET_TIME_absolute_hton (b->monotonic_time); | ||
8566 | b->sc = | ||
8567 | GNUNET_PEERSTORE_store (peerstore, | ||
8568 | "transport", | ||
8569 | &b->pid, | ||
8570 | GNUNET_PEERSTORE_TRANSPORT_BACKCHANNEL_MONOTIME, | ||
8571 | &mtbe, | ||
8572 | sizeof(mtbe), | ||
8573 | GNUNET_TIME_UNIT_FOREVER_ABS, | ||
8574 | GNUNET_PEERSTORE_STOREOPTION_REPLACE, | ||
8575 | &backtalker_monotime_store_cb, | ||
8576 | b); | ||
8577 | } | ||
8578 | |||
8579 | |||
8580 | /** | ||
8581 | * Communicator gave us a DV box. Process the request. | ||
8582 | * | ||
8583 | * @param cls a `struct CommunicatorMessageContext` (must call | ||
8584 | * #finish_cmc_handling() when done) | ||
8585 | * @param dvb the message that was received | ||
8586 | */ | ||
8587 | static void | ||
8588 | handle_dv_box (void *cls, const struct TransportDVBoxMessage *dvb) | ||
8589 | { | ||
8590 | struct CommunicatorMessageContext *cmc = cls; | ||
8591 | uint16_t size = ntohs (dvb->header.size) - sizeof(*dvb); | ||
8592 | uint16_t num_hops = ntohs (dvb->num_hops); | ||
8593 | const struct GNUNET_PeerIdentity *hops = | ||
8594 | (const struct GNUNET_PeerIdentity *) &dvb[1]; | ||
8595 | const char *enc_payload = (const char *) &hops[num_hops]; | ||
8596 | uint16_t enc_payload_size = | ||
8597 | size - (num_hops * sizeof(struct GNUNET_PeerIdentity)); | ||
8598 | struct DVKeyState key; | ||
8599 | struct GNUNET_HashCode hmac; | ||
8600 | const char *hdr; | ||
8601 | size_t hdr_len; | ||
8602 | |||
8603 | if (GNUNET_EXTRA_LOGGING > 0) | ||
8604 | { | ||
8605 | char *path; | ||
8606 | |||
8607 | path = GNUNET_strdup (GNUNET_i2s (&GST_my_identity)); | ||
8608 | for (unsigned int i = 0; i < num_hops; i++) | ||
8609 | { | ||
8610 | char *tmp; | ||
8611 | |||
8612 | GNUNET_asprintf (&tmp, "%s->%s", path, GNUNET_i2s (&hops[i])); | ||
8613 | GNUNET_free (path); | ||
8614 | path = tmp; | ||
8615 | } | ||
8616 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8617 | "Received DVBox with remaining path %s\n", | ||
8618 | path); | ||
8619 | GNUNET_free (path); | ||
8620 | } | ||
8621 | |||
8622 | if (num_hops > 0) | ||
8623 | { | ||
8624 | /* We're trying from the end of the hops array, as we may be | ||
8625 | able to find a shortcut unknown to the origin that way */ | ||
8626 | for (int i = num_hops - 1; i >= 0; i--) | ||
8627 | { | ||
8628 | struct Neighbour *n; | ||
8629 | |||
8630 | if (0 == GNUNET_memcmp (&hops[i], &GST_my_identity)) | ||
8631 | { | ||
8632 | GNUNET_break_op (0); | ||
8633 | finish_cmc_handling (cmc); | ||
8634 | return; | ||
8635 | } | ||
8636 | n = lookup_neighbour (&hops[i]); | ||
8637 | if (NULL == n) | ||
8638 | continue; | ||
8639 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8640 | "Skipping %u/%u hops ahead while routing DV Box\n", | ||
8641 | i, | ||
8642 | num_hops); | ||
8643 | |||
8644 | forward_dv_box (n, | ||
8645 | (struct TransportDVBoxMessage *) dvb, | ||
8646 | ntohs (dvb->total_hops) + 1, | ||
8647 | num_hops - i - 1, /* number of hops left */ | ||
8648 | &hops[i + 1], /* remaining hops */ | ||
8649 | enc_payload, | ||
8650 | enc_payload_size); | ||
8651 | GNUNET_STATISTICS_update (GST_stats, | ||
8652 | "# DV hops skipped routing boxes", | ||
8653 | i, | ||
8654 | GNUNET_NO); | ||
8655 | GNUNET_STATISTICS_update (GST_stats, | ||
8656 | "# DV boxes routed (total)", | ||
8657 | 1, | ||
8658 | GNUNET_NO); | ||
8659 | finish_cmc_handling (cmc); | ||
8660 | return; | ||
8661 | } | ||
8662 | /* Woopsie, next hop not in neighbours, drop! */ | ||
8663 | GNUNET_STATISTICS_update (GST_stats, | ||
8664 | "# DV Boxes dropped: next hop unknown", | ||
8665 | 1, | ||
8666 | GNUNET_NO); | ||
8667 | finish_cmc_handling (cmc); | ||
8668 | return; | ||
8669 | } | ||
8670 | /* We are the target. Unbox and handle message. */ | ||
8671 | GNUNET_STATISTICS_update (GST_stats, | ||
8672 | "# DV boxes opened (ultimate target)", | ||
8673 | 1, | ||
8674 | GNUNET_NO); | ||
8675 | cmc->total_hops = ntohs (dvb->total_hops); | ||
8676 | |||
8677 | // DH key derivation with received DV, could be garbage. | ||
8678 | struct GNUNET_HashCode km; | ||
8679 | |||
8680 | if (GNUNET_YES != GNUNET_CRYPTO_eddsa_kem_decaps (GST_my_private_key, | ||
8681 | &dvb->ephemeral_key, | ||
8682 | &km)) | ||
8683 | { | ||
8684 | GNUNET_break_op (0); | ||
8685 | finish_cmc_handling (cmc); | ||
8686 | return; | ||
8687 | } | ||
8688 | dv_setup_key_state_from_km (&km, &dvb->iv, &key); | ||
8689 | hdr = (const char *) &dvb[1]; | ||
8690 | hdr_len = ntohs (dvb->orig_size) - sizeof(*dvb) - sizeof(struct | ||
8691 | GNUNET_PeerIdentity) | ||
8692 | * ntohs (dvb->total_hops); | ||
8693 | |||
8694 | dv_hmac (&key, &hmac, hdr, hdr_len); | ||
8695 | if (0 != GNUNET_memcmp (&hmac, &dvb->hmac)) | ||
8696 | { | ||
8697 | /* HMAC mismatch, discard! */ | ||
8698 | GNUNET_break_op (0); | ||
8699 | finish_cmc_handling (cmc); | ||
8700 | return; | ||
8701 | } | ||
8702 | /* begin actual decryption */ | ||
8703 | { | ||
8704 | struct Backtalker *b; | ||
8705 | struct GNUNET_TIME_Absolute monotime; | ||
8706 | struct TransportDVBoxPayloadP ppay; | ||
8707 | char body[hdr_len - sizeof(ppay)] GNUNET_ALIGN; | ||
8708 | const struct GNUNET_MessageHeader *mh; | ||
8709 | |||
8710 | GNUNET_assert (hdr_len >= | ||
8711 | sizeof(ppay) + sizeof(struct GNUNET_MessageHeader)); | ||
8712 | if (GNUNET_OK != dv_decrypt (&key, &ppay, hdr, sizeof(ppay))) | ||
8713 | { | ||
8714 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
8715 | "Error decrypting DV payload header\n"); | ||
8716 | GNUNET_break_op (0); | ||
8717 | finish_cmc_handling (cmc); | ||
8718 | return; | ||
8719 | } | ||
8720 | if (GNUNET_OK != dv_decrypt (&key, body, | ||
8721 | &hdr[sizeof(ppay)], hdr_len - sizeof(ppay))) | ||
8722 | { | ||
8723 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
8724 | "Error decrypting DV payload\n"); | ||
8725 | GNUNET_break_op (0); | ||
8726 | finish_cmc_handling (cmc); | ||
8727 | return; | ||
8728 | } | ||
8729 | mh = (const struct GNUNET_MessageHeader *) body; | ||
8730 | dv_key_clean (&key); | ||
8731 | if (ntohs (mh->size) != sizeof(body)) | ||
8732 | { | ||
8733 | GNUNET_break_op (0); | ||
8734 | finish_cmc_handling (cmc); | ||
8735 | return; | ||
8736 | } | ||
8737 | /* need to prevent box-in-a-box (and DV_LEARN) so check inbox type! */ | ||
8738 | switch (ntohs (mh->type)) | ||
8739 | { | ||
8740 | case GNUNET_MESSAGE_TYPE_TRANSPORT_DV_BOX: | ||
8741 | GNUNET_break_op (0); | ||
8742 | finish_cmc_handling (cmc); | ||
8743 | return; | ||
8744 | |||
8745 | case GNUNET_MESSAGE_TYPE_TRANSPORT_DV_LEARN: | ||
8746 | GNUNET_break_op (0); | ||
8747 | finish_cmc_handling (cmc); | ||
8748 | return; | ||
8749 | |||
8750 | default: | ||
8751 | /* permitted, continue */ | ||
8752 | break; | ||
8753 | } | ||
8754 | monotime = GNUNET_TIME_absolute_ntoh (ppay.monotonic_time); | ||
8755 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8756 | "Decrypted backtalk from %s\n", | ||
8757 | GNUNET_i2s (&ppay.sender)); | ||
8758 | b = GNUNET_CONTAINER_multipeermap_get (backtalkers, &ppay.sender); | ||
8759 | if ((NULL != b) && (monotime.abs_value_us < b->monotonic_time.abs_value_us)) | ||
8760 | { | ||
8761 | GNUNET_STATISTICS_update ( | ||
8762 | GST_stats, | ||
8763 | "# Backchannel messages dropped: monotonic time not increasing", | ||
8764 | 1, | ||
8765 | GNUNET_NO); | ||
8766 | finish_cmc_handling (cmc); | ||
8767 | return; | ||
8768 | } | ||
8769 | if ((NULL == b) || | ||
8770 | (0 != GNUNET_memcmp (&b->last_ephemeral, &dvb->ephemeral_key))) | ||
8771 | { | ||
8772 | /* Check signature */ | ||
8773 | struct EphemeralConfirmationPS ec; | ||
8774 | |||
8775 | ec.purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_TRANSPORT_EPHEMERAL); | ||
8776 | ec.target = GST_my_identity; | ||
8777 | ec.ephemeral_key = dvb->ephemeral_key; | ||
8778 | ec.purpose.size = htonl (sizeof(ec)); | ||
8779 | ec.sender_monotonic_time = ppay.monotonic_time; | ||
8780 | if ( | ||
8781 | GNUNET_OK != | ||
8782 | GNUNET_CRYPTO_eddsa_verify ( | ||
8783 | GNUNET_SIGNATURE_PURPOSE_TRANSPORT_EPHEMERAL, | ||
8784 | &ec, | ||
8785 | &ppay.sender_sig, | ||
8786 | &ppay.sender.public_key)) | ||
8787 | { | ||
8788 | /* Signature invalid, discard! */ | ||
8789 | GNUNET_break_op (0); | ||
8790 | finish_cmc_handling (cmc); | ||
8791 | return; | ||
8792 | } | ||
8793 | } | ||
8794 | /* Update sender, we now know the real origin! */ | ||
8795 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
8796 | "DVBox received for me from %s via %s\n", | ||
8797 | GNUNET_i2s2 (&ppay.sender), | ||
8798 | GNUNET_i2s (&cmc->im.sender)); | ||
8799 | cmc->im.sender = ppay.sender; | ||
8800 | |||
8801 | if (NULL != b) | ||
8802 | { | ||
8803 | /* update key cache and mono time */ | ||
8804 | b->last_ephemeral = dvb->ephemeral_key; | ||
8805 | b->monotonic_time = monotime; | ||
8806 | update_backtalker_monotime (b); | ||
8807 | b->timeout = | ||
8808 | GNUNET_TIME_relative_to_absolute (BACKCHANNEL_INACTIVITY_TIMEOUT); | ||
8809 | cmc->mh = mh; | ||
8810 | demultiplex_with_cmc (cmc); | ||
8811 | return; | ||
8812 | } | ||
8813 | /* setup data structure to cache signature AND check | ||
8814 | monotonic time with PEERSTORE before forwarding backchannel payload */ | ||
8815 | b = GNUNET_malloc (sizeof(struct Backtalker) + sizeof(body)); | ||
8816 | b->pid = ppay.sender; | ||
8817 | b->body_size = sizeof(body); | ||
8818 | memcpy (&b[1], body, sizeof(body)); | ||
8819 | GNUNET_assert (GNUNET_YES == | ||
8820 | GNUNET_CONTAINER_multipeermap_put ( | ||
8821 | backtalkers, | ||
8822 | &b->pid, | ||
8823 | b, | ||
8824 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)); | ||
8825 | b->monotonic_time = monotime; /* NOTE: to be checked still! */ | ||
8826 | b->cmc = cmc; | ||
8827 | b->timeout = | ||
8828 | GNUNET_TIME_relative_to_absolute (BACKCHANNEL_INACTIVITY_TIMEOUT); | ||
8829 | b->task = GNUNET_SCHEDULER_add_at (b->timeout, &backtalker_timeout_cb, b); | ||
8830 | b->get = | ||
8831 | GNUNET_PEERSTORE_iteration_start (peerstore, | ||
8832 | "transport", | ||
8833 | &b->pid, | ||
8834 | GNUNET_PEERSTORE_TRANSPORT_BACKCHANNEL_MONOTIME, | ||
8835 | &backtalker_monotime_cb, | ||
8836 | b); | ||
8837 | } /* end actual decryption */ | ||
8838 | } | ||
8839 | |||
8840 | |||
8841 | /** | ||
8842 | * Client notified us about transmission from a peer. Process the request. | ||
8843 | * | ||
8844 | * @param cls a `struct TransportClient` which sent us the message | ||
8845 | * @param im the send message that was sent | ||
8846 | * @return #GNUNET_YES if message is well-formed | ||
8847 | */ | ||
8848 | static int | ||
8849 | check_incoming_msg (void *cls, | ||
8850 | const struct GNUNET_TRANSPORT_IncomingMessage *im) | ||
8851 | { | ||
8852 | struct TransportClient *tc = cls; | ||
8853 | |||
8854 | if (CT_COMMUNICATOR != tc->type) | ||
8855 | { | ||
8856 | GNUNET_break (0); | ||
8857 | return GNUNET_SYSERR; | ||
8858 | } | ||
8859 | GNUNET_MQ_check_boxed_message (im); | ||
8860 | return GNUNET_OK; | ||
8861 | } | ||
8862 | |||
8863 | |||
8864 | /** | ||
8865 | * Closure for #check_known_address. | ||
8866 | */ | ||
8867 | struct CheckKnownAddressContext | ||
8868 | { | ||
8869 | /** | ||
8870 | * Set to the address we are looking for. | ||
8871 | */ | ||
8872 | const char *address; | ||
8873 | |||
8874 | /** | ||
8875 | * Set to a matching validation state, if one was found. | ||
8876 | */ | ||
8877 | struct ValidationState *vs; | ||
8878 | }; | ||
8879 | |||
8880 | |||
8881 | /** | ||
8882 | * Test if the validation state in @a value matches the | ||
8883 | * address from @a cls. | ||
8884 | * | ||
8885 | * @param cls a `struct CheckKnownAddressContext` | ||
8886 | * @param pid unused (must match though) | ||
8887 | * @param value a `struct ValidationState` | ||
8888 | * @return #GNUNET_OK if not matching, #GNUNET_NO if match found | ||
8889 | */ | ||
8890 | static int | ||
8891 | check_known_address (void *cls, | ||
8892 | const struct GNUNET_PeerIdentity *pid, | ||
8893 | void *value) | ||
8894 | { | ||
8895 | struct CheckKnownAddressContext *ckac = cls; | ||
8896 | struct ValidationState *vs = value; | ||
8897 | |||
8898 | (void) pid; | ||
8899 | if (0 != strcmp (vs->address, ckac->address)) | ||
8900 | return GNUNET_OK; | ||
8901 | ckac->vs = vs; | ||
8902 | return GNUNET_NO; | ||
8903 | } | ||
8904 | |||
8905 | |||
8906 | /** | ||
8907 | * Task run periodically to validate some address based on #validation_heap. | ||
8908 | * | ||
8909 | * @param cls NULL | ||
8910 | */ | ||
8911 | static void | ||
8912 | validation_start_cb (void *cls); | ||
8913 | |||
8914 | |||
8915 | /** | ||
8916 | * Set the time for next_challenge of @a vs to @a new_time. | ||
8917 | * Updates the heap and if necessary reschedules the job. | ||
8918 | * | ||
8919 | * @param vs validation state to update | ||
8920 | * @param new_time new time for revalidation | ||
8921 | */ | ||
8922 | static void | ||
8923 | update_next_challenge_time (struct ValidationState *vs, | ||
8924 | struct GNUNET_TIME_Absolute new_time) | ||
8925 | { | ||
8926 | struct GNUNET_TIME_Relative delta; | ||
8927 | |||
8928 | if (new_time.abs_value_us == vs->next_challenge.abs_value_us) | ||
8929 | return; /* be lazy */ | ||
8930 | vs->next_challenge = new_time; | ||
8931 | if (NULL == vs->hn) | ||
8932 | vs->hn = | ||
8933 | GNUNET_CONTAINER_heap_insert (validation_heap, vs, new_time.abs_value_us); | ||
8934 | else | ||
8935 | GNUNET_CONTAINER_heap_update_cost (vs->hn, new_time.abs_value_us); | ||
8936 | if ((vs != GNUNET_CONTAINER_heap_peek (validation_heap)) && | ||
8937 | (NULL != validation_task)) | ||
8938 | return; | ||
8939 | if (NULL != validation_task) | ||
8940 | GNUNET_SCHEDULER_cancel (validation_task); | ||
8941 | /* randomize a bit */ | ||
8942 | delta.rel_value_us = | ||
8943 | GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK, | ||
8944 | MIN_DELAY_ADDRESS_VALIDATION.rel_value_us); | ||
8945 | new_time = GNUNET_TIME_absolute_add (new_time, delta); | ||
8946 | validation_task = | ||
8947 | GNUNET_SCHEDULER_add_at (new_time, &validation_start_cb, NULL); | ||
8948 | } | ||
8949 | |||
8950 | |||
8951 | /** | ||
8952 | * Start address validation. | ||
8953 | * | ||
8954 | * @param pid peer the @a address is for | ||
8955 | * @param address an address to reach @a pid (presumably) | ||
8956 | */ | ||
8957 | static void | ||
8958 | start_address_validation (const struct GNUNET_PeerIdentity *pid, | ||
8959 | const char *address) | ||
8960 | { | ||
8961 | struct GNUNET_TIME_Absolute now; | ||
8962 | struct ValidationState *vs; | ||
8963 | struct CheckKnownAddressContext ckac = { .address = address, .vs = NULL }; | ||
8964 | |||
8965 | (void) GNUNET_CONTAINER_multipeermap_get_multiple (validation_map, | ||
8966 | pid, | ||
8967 | &check_known_address, | ||
8968 | &ckac); | ||
8969 | if (NULL != (vs = ckac.vs)) | ||
8970 | { | ||
8971 | /* if 'vs' is not currently valid, we need to speed up retrying the | ||
8972 | * validation */ | ||
8973 | if (vs->validated_until.abs_value_us < vs->next_challenge.abs_value_us) | ||
8974 | { | ||
8975 | /* reduce backoff as we got a fresh advertisement */ | ||
8976 | vs->challenge_backoff = | ||
8977 | GNUNET_TIME_relative_min (FAST_VALIDATION_CHALLENGE_FREQ, | ||
8978 | GNUNET_TIME_relative_divide ( | ||
8979 | vs->challenge_backoff, | ||
8980 | 2)); | ||
8981 | update_next_challenge_time (vs, | ||
8982 | GNUNET_TIME_relative_to_absolute ( | ||
8983 | vs->challenge_backoff)); | ||
8984 | } | ||
8985 | return; | ||
8986 | } | ||
8987 | now = GNUNET_TIME_absolute_get_monotonic (GST_cfg); | ||
8988 | vs = GNUNET_new (struct ValidationState); | ||
8989 | vs->pid = *pid; | ||
8990 | vs->valid_until = | ||
8991 | GNUNET_TIME_relative_to_absolute (ADDRESS_VALIDATION_LIFETIME); | ||
8992 | vs->first_challenge_use = now; | ||
8993 | vs->validation_rtt = GNUNET_TIME_UNIT_FOREVER_REL; | ||
8994 | GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_NONCE, | ||
8995 | &vs->challenge, | ||
8996 | sizeof(vs->challenge)); | ||
8997 | vs->address = GNUNET_strdup (address); | ||
8998 | GNUNET_CRYPTO_hash (vs->address, strlen (vs->address), &vs->hc); | ||
8999 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9000 | "Starting address validation `%s' of peer %s using challenge %s\n", | ||
9001 | address, | ||
9002 | GNUNET_i2s (pid), | ||
9003 | GNUNET_sh2s (&vs->challenge.value)); | ||
9004 | GNUNET_assert (GNUNET_YES == | ||
9005 | GNUNET_CONTAINER_multipeermap_put ( | ||
9006 | validation_map, | ||
9007 | &vs->pid, | ||
9008 | vs, | ||
9009 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE)); | ||
9010 | update_next_challenge_time (vs, now); | ||
9011 | } | ||
9012 | |||
9013 | |||
9014 | static struct Queue * | ||
9015 | find_queue (const struct GNUNET_PeerIdentity *pid, const char *address); | ||
9016 | |||
9017 | |||
9018 | static void | ||
9019 | suggest_to_connect (const struct GNUNET_PeerIdentity *pid, const char *address); | ||
9020 | |||
9021 | |||
9022 | static void | ||
9023 | hello_for_incoming_cb (void *cls, | ||
9024 | const struct GNUNET_PeerIdentity *pid, | ||
9025 | const char *uri) | ||
9026 | { | ||
9027 | (void) cls; | ||
9028 | struct Queue *q; | ||
9029 | int pfx_len; | ||
9030 | const char *eou; | ||
9031 | char *address; | ||
9032 | |||
9033 | eou = strstr (uri, | ||
9034 | "://"); | ||
9035 | pfx_len = eou - uri; | ||
9036 | eou += 3; | ||
9037 | GNUNET_asprintf (&address, | ||
9038 | "%.*s-%s", | ||
9039 | pfx_len, | ||
9040 | uri, | ||
9041 | eou); | ||
9042 | |||
9043 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9044 | "helo for client %s\n", | ||
9045 | address); | ||
9046 | q = find_queue (pid, address); | ||
9047 | if (NULL == q) | ||
9048 | { | ||
9049 | suggest_to_connect (pid, address); | ||
9050 | } | ||
9051 | else | ||
9052 | start_address_validation (pid, address); | ||
9053 | GNUNET_free (address); | ||
9054 | } | ||
9055 | |||
9056 | |||
9057 | /** | ||
9058 | * Function called by PEERSTORE for each matching record. | ||
9059 | * | ||
9060 | * @param cls closure, a `struct IncomingRequest` | ||
9061 | * @param record peerstore record information | ||
9062 | * @param emsg error message, or NULL if no errors | ||
9063 | */ | ||
9064 | static void | ||
9065 | handle_hello_for_incoming (void *cls, | ||
9066 | const struct GNUNET_PEERSTORE_Record *record, | ||
9067 | const char *emsg) | ||
9068 | { | ||
9069 | struct IncomingRequest *ir = cls; | ||
9070 | struct GNUNET_HELLO_Builder *builder; | ||
9071 | struct GNUNET_MessageHeader *hello; | ||
9072 | |||
9073 | if (NULL != emsg) | ||
9074 | { | ||
9075 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
9076 | "Got failure from PEERSTORE: %s\n", | ||
9077 | emsg); | ||
9078 | return; | ||
9079 | } | ||
9080 | hello = record->value; | ||
9081 | if (0 == GNUNET_memcmp (&record->peer, &GST_my_identity)) | ||
9082 | { | ||
9083 | GNUNET_PEERSTORE_monitor_next (ir->nc, 1); | ||
9084 | return; | ||
9085 | } | ||
9086 | builder = GNUNET_HELLO_builder_from_msg (hello); | ||
9087 | GNUNET_HELLO_builder_iterate (builder, | ||
9088 | hello_for_incoming_cb, | ||
9089 | NULL); | ||
9090 | GNUNET_HELLO_builder_free (builder); | ||
9091 | } | ||
9092 | |||
9093 | |||
9094 | static void | ||
9095 | hello_for_incoming_error_cb (void *cls) | ||
9096 | { | ||
9097 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
9098 | "Error in PEERSTORE monitoring\n"); | ||
9099 | } | ||
9100 | |||
9101 | |||
9102 | static void | ||
9103 | hello_for_incoming_sync_cb (void *cls) | ||
9104 | { | ||
9105 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
9106 | "Done with initial PEERSTORE iteration during monitoring\n"); | ||
9107 | } | ||
9108 | |||
9109 | |||
9110 | /** | ||
9111 | * Communicator gave us a transport address validation challenge. Process the | ||
9112 | * request. | ||
9113 | * | ||
9114 | * @param cls a `struct CommunicatorMessageContext` (must call | ||
9115 | * #finish_cmc_handling() when done) | ||
9116 | * @param tvc the message that was received | ||
9117 | */ | ||
9118 | static void | ||
9119 | handle_validation_challenge ( | ||
9120 | void *cls, | ||
9121 | const struct TransportValidationChallengeMessage *tvc) | ||
9122 | { | ||
9123 | struct CommunicatorMessageContext *cmc = cls; | ||
9124 | struct TransportValidationResponseMessage tvr; | ||
9125 | struct VirtualLink *vl; | ||
9126 | struct GNUNET_TIME_RelativeNBO validity_duration; | ||
9127 | struct IncomingRequest *ir; | ||
9128 | struct Neighbour *n; | ||
9129 | struct GNUNET_PeerIdentity sender; | ||
9130 | |||
9131 | /* DV-routed messages are not allowed for validation challenges */ | ||
9132 | if (cmc->total_hops > 0) | ||
9133 | { | ||
9134 | GNUNET_break_op (0); | ||
9135 | finish_cmc_handling (cmc); | ||
9136 | return; | ||
9137 | } | ||
9138 | validity_duration = cmc->im.expected_address_validity; | ||
9139 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9140 | "Received address validation challenge %s\n", | ||
9141 | GNUNET_sh2s (&tvc->challenge.value)); | ||
9142 | /* If we have a virtual link, we use this mechanism to signal the | ||
9143 | size of the flow control window, and to allow the sender | ||
9144 | to ask for increases. If for us the virtual link is still down, | ||
9145 | we will always give a window size of zero. */ | ||
9146 | tvr.header.type = | ||
9147 | htons (GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_VALIDATION_RESPONSE); | ||
9148 | tvr.header.size = htons (sizeof(tvr)); | ||
9149 | tvr.reserved = htonl (0); | ||
9150 | tvr.challenge = tvc->challenge; | ||
9151 | tvr.origin_time = tvc->sender_time; | ||
9152 | tvr.validity_duration = validity_duration; | ||
9153 | { | ||
9154 | /* create signature */ | ||
9155 | struct TransportValidationPS tvp = { | ||
9156 | .purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_TRANSPORT_CHALLENGE), | ||
9157 | .purpose.size = htonl (sizeof(tvp)), | ||
9158 | .validity_duration = validity_duration, | ||
9159 | .challenge = tvc->challenge | ||
9160 | }; | ||
9161 | |||
9162 | GNUNET_CRYPTO_eddsa_sign (GST_my_private_key, | ||
9163 | &tvp, | ||
9164 | &tvr.signature); | ||
9165 | } | ||
9166 | sender = cmc->im.sender; | ||
9167 | vl = lookup_virtual_link (&sender); | ||
9168 | if ((NULL != vl) && (GNUNET_YES == vl->confirmed)) | ||
9169 | { | ||
9170 | // route_control_message_without_fc (&cmc->im.sender, | ||
9171 | route_control_message_without_fc (vl, | ||
9172 | &tvr.header, | ||
9173 | RMO_ANYTHING_GOES | RMO_REDUNDANT); | ||
9174 | } | ||
9175 | else | ||
9176 | { | ||
9177 | /* Use route via neighbour */ | ||
9178 | n = lookup_neighbour (&sender); | ||
9179 | if (NULL != n) | ||
9180 | route_via_neighbour (n, &tvr.header, | ||
9181 | RMO_ANYTHING_GOES | RMO_REDUNDANT | ||
9182 | | RMO_UNCONFIRMED_ALLOWED); | ||
9183 | } | ||
9184 | |||
9185 | finish_cmc_handling (cmc); | ||
9186 | if (NULL != vl) | ||
9187 | return; | ||
9188 | |||
9189 | /* For us, the link is still down, but we need bi-directional | ||
9190 | connections (for flow-control and for this to be useful for | ||
9191 | CORE), so we must try to bring the link up! */ | ||
9192 | |||
9193 | /* (1) Check existing queues, if any, we may be lucky! */ | ||
9194 | n = lookup_neighbour (&sender); | ||
9195 | if (NULL != n) | ||
9196 | for (struct Queue *q = n->queue_head; NULL != q; q = q->next_neighbour) | ||
9197 | start_address_validation (&sender, q->address); | ||
9198 | /* (2) Also try to see if we have addresses in PEERSTORE for this peer | ||
9199 | we could use */ | ||
9200 | for (ir = ir_head; NULL != ir; ir = ir->next) | ||
9201 | if (0 == GNUNET_memcmp (&ir->pid, &sender)) | ||
9202 | return; | ||
9203 | /* we are already trying */ | ||
9204 | ir = GNUNET_new (struct IncomingRequest); | ||
9205 | ir->pid = sender; | ||
9206 | GNUNET_CONTAINER_DLL_insert (ir_head, ir_tail, ir); | ||
9207 | |||
9208 | ir->nc = GNUNET_PEERSTORE_monitor_start (GST_cfg, | ||
9209 | GNUNET_YES, | ||
9210 | "peerstore", | ||
9211 | NULL, | ||
9212 | GNUNET_PEERSTORE_HELLO_KEY, | ||
9213 | &hello_for_incoming_error_cb, | ||
9214 | NULL, | ||
9215 | &hello_for_incoming_sync_cb, | ||
9216 | NULL, | ||
9217 | &handle_hello_for_incoming, | ||
9218 | ir); | ||
9219 | ir_total++; | ||
9220 | /* Bound attempts we do in parallel here, might otherwise get excessive */ | ||
9221 | while (ir_total > MAX_INCOMING_REQUEST) | ||
9222 | free_incoming_request (ir_head); | ||
9223 | } | ||
9224 | |||
9225 | |||
9226 | /** | ||
9227 | * Closure for #check_known_challenge. | ||
9228 | */ | ||
9229 | struct CheckKnownChallengeContext | ||
9230 | { | ||
9231 | /** | ||
9232 | * Set to the challenge we are looking for. | ||
9233 | */ | ||
9234 | const struct GNUNET_CRYPTO_ChallengeNonceP *challenge; | ||
9235 | |||
9236 | /** | ||
9237 | * Set to a matching validation state, if one was found. | ||
9238 | */ | ||
9239 | struct ValidationState *vs; | ||
9240 | }; | ||
9241 | |||
9242 | |||
9243 | /** | ||
9244 | * Test if the validation state in @a value matches the | ||
9245 | * challenge from @a cls. | ||
9246 | * | ||
9247 | * @param cls a `struct CheckKnownChallengeContext` | ||
9248 | * @param pid unused (must match though) | ||
9249 | * @param value a `struct ValidationState` | ||
9250 | * @return #GNUNET_OK if not matching, #GNUNET_NO if match found | ||
9251 | */ | ||
9252 | static int | ||
9253 | check_known_challenge (void *cls, | ||
9254 | const struct GNUNET_PeerIdentity *pid, | ||
9255 | void *value) | ||
9256 | { | ||
9257 | struct CheckKnownChallengeContext *ckac = cls; | ||
9258 | struct ValidationState *vs = value; | ||
9259 | |||
9260 | (void) pid; | ||
9261 | if (0 != GNUNET_memcmp (&vs->challenge, ckac->challenge)) | ||
9262 | return GNUNET_OK; | ||
9263 | ckac->vs = vs; | ||
9264 | return GNUNET_NO; | ||
9265 | } | ||
9266 | |||
9267 | |||
9268 | /** | ||
9269 | * Function called when peerstore is done storing a | ||
9270 | * validated address. | ||
9271 | * | ||
9272 | * @param cls a `struct ValidationState` | ||
9273 | * @param success #GNUNET_YES on success | ||
9274 | */ | ||
9275 | static void | ||
9276 | peerstore_store_validation_cb (void *cls, int success) | ||
9277 | { | ||
9278 | struct ValidationState *vs = cls; | ||
9279 | |||
9280 | vs->sc = NULL; | ||
9281 | if (GNUNET_YES == success) | ||
9282 | return; | ||
9283 | GNUNET_STATISTICS_update (GST_stats, | ||
9284 | "# Peerstore failed to store foreign address", | ||
9285 | 1, | ||
9286 | GNUNET_NO); | ||
9287 | } | ||
9288 | |||
9289 | |||
9290 | /** | ||
9291 | * Find the queue matching @a pid and @a address. | ||
9292 | * | ||
9293 | * @param pid peer the queue must go to | ||
9294 | * @param address address the queue must use | ||
9295 | * @return NULL if no such queue exists | ||
9296 | */ | ||
9297 | static struct Queue * | ||
9298 | find_queue (const struct GNUNET_PeerIdentity *pid, const char *address) | ||
9299 | { | ||
9300 | struct Neighbour *n; | ||
9301 | |||
9302 | n = lookup_neighbour (pid); | ||
9303 | if (NULL == n) | ||
9304 | return NULL; | ||
9305 | for (struct Queue *pos = n->queue_head; NULL != pos; | ||
9306 | pos = pos->next_neighbour) | ||
9307 | { | ||
9308 | if (0 == strcmp (pos->address, address)) | ||
9309 | return pos; | ||
9310 | } | ||
9311 | return NULL; | ||
9312 | } | ||
9313 | |||
9314 | |||
9315 | static void | ||
9316 | validation_transmit_on_queue (struct Queue *q, struct ValidationState *vs); | ||
9317 | |||
9318 | static void | ||
9319 | revalidation_start_cb (void *cls) | ||
9320 | { | ||
9321 | struct ValidationState *vs = cls; | ||
9322 | struct Queue *q; | ||
9323 | struct GNUNET_TIME_Absolute now; | ||
9324 | |||
9325 | vs->revalidation_task = NULL; | ||
9326 | q = find_queue (&vs->pid, vs->address); | ||
9327 | if (NULL == q) | ||
9328 | { | ||
9329 | now = GNUNET_TIME_absolute_get (); | ||
9330 | vs->awaiting_queue = GNUNET_YES; | ||
9331 | suggest_to_connect (&vs->pid, vs->address); | ||
9332 | update_next_challenge_time (vs, now); | ||
9333 | } | ||
9334 | else | ||
9335 | validation_transmit_on_queue (q, vs); | ||
9336 | } | ||
9337 | |||
9338 | |||
9339 | static enum GNUNET_GenericReturnValue | ||
9340 | revalidate_map_it ( | ||
9341 | void *cls, | ||
9342 | const struct GNUNET_HashCode *key, | ||
9343 | void *value) | ||
9344 | { | ||
9345 | (void) cls; | ||
9346 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9347 | "Key in revalidate map %s \n", | ||
9348 | GNUNET_h2s (key)); | ||
9349 | return GNUNET_YES; | ||
9350 | } | ||
9351 | |||
9352 | |||
9353 | /** | ||
9354 | * Communicator gave us a transport address validation response. Process the | ||
9355 | * request. | ||
9356 | * | ||
9357 | * @param cls a `struct CommunicatorMessageContext` (must call | ||
9358 | * #finish_cmc_handling() when done) | ||
9359 | * @param tvr the message that was received | ||
9360 | */ | ||
9361 | static void | ||
9362 | handle_validation_response ( | ||
9363 | void *cls, | ||
9364 | const struct TransportValidationResponseMessage *tvr) | ||
9365 | { | ||
9366 | struct CommunicatorMessageContext *cmc = cls; | ||
9367 | struct ValidationState *vs; | ||
9368 | struct CheckKnownChallengeContext ckac = { .challenge = &tvr->challenge, | ||
9369 | .vs = NULL}; | ||
9370 | struct GNUNET_TIME_Absolute origin_time; | ||
9371 | struct Queue *q; | ||
9372 | struct Neighbour *n; | ||
9373 | struct VirtualLink *vl; | ||
9374 | const struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get_monotonic ( | ||
9375 | GST_cfg); | ||
9376 | |||
9377 | /* check this is one of our challenges */ | ||
9378 | (void) GNUNET_CONTAINER_multipeermap_get_multiple (validation_map, | ||
9379 | &cmc->im.sender, | ||
9380 | &check_known_challenge, | ||
9381 | &ckac); | ||
9382 | if (NULL == (vs = ckac.vs)) | ||
9383 | { | ||
9384 | /* This can happen simply if we 'forgot' the challenge by now, | ||
9385 | i.e. because we received the validation response twice */ | ||
9386 | GNUNET_STATISTICS_update (GST_stats, | ||
9387 | "# Validations dropped, challenge unknown", | ||
9388 | 1, | ||
9389 | GNUNET_NO); | ||
9390 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9391 | "Validation response %s dropped, challenge unknown\n", | ||
9392 | GNUNET_sh2s (&tvr->challenge.value)); | ||
9393 | finish_cmc_handling (cmc); | ||
9394 | return; | ||
9395 | } | ||
9396 | |||
9397 | /* sanity check on origin time */ | ||
9398 | origin_time = GNUNET_TIME_absolute_ntoh (tvr->origin_time); | ||
9399 | if ((origin_time.abs_value_us < vs->first_challenge_use.abs_value_us) || | ||
9400 | (origin_time.abs_value_us > vs->last_challenge_use.abs_value_us)) | ||
9401 | { | ||
9402 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9403 | "Diff first use %" PRIu64 " and last use %" PRIu64 "\n", | ||
9404 | vs->first_challenge_use.abs_value_us - origin_time.abs_value_us, | ||
9405 | origin_time.abs_value_us - vs->last_challenge_use.abs_value_us); | ||
9406 | GNUNET_break_op (0); | ||
9407 | finish_cmc_handling (cmc); | ||
9408 | return; | ||
9409 | } | ||
9410 | |||
9411 | { | ||
9412 | /* check signature */ | ||
9413 | struct TransportValidationPS tvp = { | ||
9414 | .purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_TRANSPORT_CHALLENGE), | ||
9415 | .purpose.size = htonl (sizeof(tvp)), | ||
9416 | .validity_duration = tvr->validity_duration, | ||
9417 | .challenge = tvr->challenge | ||
9418 | }; | ||
9419 | |||
9420 | if ( | ||
9421 | GNUNET_OK != | ||
9422 | GNUNET_CRYPTO_eddsa_verify (GNUNET_SIGNATURE_PURPOSE_TRANSPORT_CHALLENGE, | ||
9423 | &tvp, | ||
9424 | &tvr->signature, | ||
9425 | &cmc->im.sender.public_key)) | ||
9426 | { | ||
9427 | GNUNET_break_op (0); | ||
9428 | finish_cmc_handling (cmc); | ||
9429 | return; | ||
9430 | } | ||
9431 | } | ||
9432 | |||
9433 | /* validity is capped by our willingness to keep track of the | ||
9434 | validation entry and the maximum the other peer allows */ | ||
9435 | vs->valid_until = GNUNET_TIME_relative_to_absolute ( | ||
9436 | GNUNET_TIME_relative_min (GNUNET_TIME_relative_ntoh ( | ||
9437 | tvr->validity_duration), | ||
9438 | MAX_ADDRESS_VALID_UNTIL)); | ||
9439 | vs->validated_until = | ||
9440 | GNUNET_TIME_absolute_min (vs->valid_until, | ||
9441 | GNUNET_TIME_relative_to_absolute ( | ||
9442 | ADDRESS_VALIDATION_LIFETIME)); | ||
9443 | vs->validation_rtt = GNUNET_TIME_absolute_get_duration (origin_time); | ||
9444 | vs->challenge_backoff = GNUNET_TIME_UNIT_ZERO; | ||
9445 | GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_NONCE, | ||
9446 | &vs->challenge, | ||
9447 | sizeof(vs->challenge)); | ||
9448 | vs->first_challenge_use = GNUNET_TIME_absolute_subtract ( | ||
9449 | vs->validated_until, | ||
9450 | GNUNET_TIME_relative_multiply (vs->validation_rtt, | ||
9451 | VALIDATION_RTT_BUFFER_FACTOR)); | ||
9452 | if (GNUNET_TIME_absolute_cmp (vs->first_challenge_use, <, now)) | ||
9453 | { | ||
9454 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9455 | "First challenge use is now %" PRIu64 " %s \n", | ||
9456 | vs->first_challenge_use.abs_value_us, | ||
9457 | GNUNET_sh2s (&vs->challenge.value)); | ||
9458 | vs->first_challenge_use = now; | ||
9459 | } | ||
9460 | else | ||
9461 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9462 | "First challenge use is later %" PRIu64 " %s \n", | ||
9463 | vs->first_challenge_use.abs_value_us, | ||
9464 | GNUNET_sh2s (&vs->challenge.value)); | ||
9465 | vs->last_challenge_use = | ||
9466 | GNUNET_TIME_UNIT_ZERO_ABS; /* challenge was not yet used */ | ||
9467 | update_next_challenge_time (vs, vs->first_challenge_use); | ||
9468 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9469 | "Validation response %s from %s accepted, address valid until %s\n", | ||
9470 | GNUNET_sh2s (&tvr->challenge.value), | ||
9471 | GNUNET_i2s (&cmc->im.sender), | ||
9472 | GNUNET_STRINGS_absolute_time_to_string (vs->valid_until)); | ||
9473 | /*memcpy (&hkey, | ||
9474 | &hc, | ||
9475 | sizeof (hkey));*/ | ||
9476 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9477 | "Key %s for address %s map size %u contains %u\n", | ||
9478 | GNUNET_h2s (&vs->hc), | ||
9479 | vs->address, | ||
9480 | GNUNET_CONTAINER_multihashmap_size (revalidation_map), | ||
9481 | GNUNET_CONTAINER_multihashmap_contains (revalidation_map, | ||
9482 | &vs->hc)); | ||
9483 | GNUNET_assert (GNUNET_YES == | ||
9484 | GNUNET_CONTAINER_multihashmap_put ( | ||
9485 | revalidation_map, | ||
9486 | &vs->hc, | ||
9487 | vs, | ||
9488 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)); | ||
9489 | GNUNET_CONTAINER_multihashmap_iterate (revalidation_map, | ||
9490 | revalidate_map_it, | ||
9491 | NULL); | ||
9492 | vs->revalidation_task = | ||
9493 | GNUNET_SCHEDULER_add_at (GNUNET_TIME_absolute_subtract (vs->next_challenge, | ||
9494 | GNUNET_TIME_UNIT_MINUTES), | ||
9495 | &revalidation_start_cb, vs); | ||
9496 | vs->sc = GNUNET_PEERSTORE_store (peerstore, | ||
9497 | "transport", | ||
9498 | &cmc->im.sender, | ||
9499 | GNUNET_PEERSTORE_TRANSPORT_URLADDRESS_KEY, | ||
9500 | vs->address, | ||
9501 | strlen (vs->address) + 1, | ||
9502 | vs->valid_until, | ||
9503 | GNUNET_PEERSTORE_STOREOPTION_MULTIPLE, | ||
9504 | &peerstore_store_validation_cb, | ||
9505 | vs); | ||
9506 | finish_cmc_handling (cmc); | ||
9507 | |||
9508 | /* Finally, we now possibly have a confirmed (!) working queue, | ||
9509 | update queue status (if queue still is around) */ | ||
9510 | q = find_queue (&vs->pid, vs->address); | ||
9511 | if (NULL == q) | ||
9512 | { | ||
9513 | GNUNET_STATISTICS_update (GST_stats, | ||
9514 | "# Queues lost at time of successful validation", | ||
9515 | 1, | ||
9516 | GNUNET_NO); | ||
9517 | return; | ||
9518 | } | ||
9519 | q->validated_until = vs->validated_until; | ||
9520 | q->pd.aged_rtt = vs->validation_rtt; | ||
9521 | n = q->neighbour; | ||
9522 | vl = lookup_virtual_link (&vs->pid); | ||
9523 | if (NULL == vl) | ||
9524 | { | ||
9525 | vl = GNUNET_new (struct VirtualLink); | ||
9526 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9527 | "Creating new virtual link %p to %s using direct neighbour!\n", | ||
9528 | vl, | ||
9529 | GNUNET_i2s (&vs->pid)); | ||
9530 | vl->confirmed = GNUNET_YES; | ||
9531 | vl->message_uuid_ctr = | ||
9532 | GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK, UINT64_MAX); | ||
9533 | vl->target = n->pid; | ||
9534 | vl->core_recv_window = RECV_WINDOW_SIZE; | ||
9535 | vl->available_fc_window_size = DEFAULT_WINDOW_SIZE; | ||
9536 | vl->incoming_fc_window_size = DEFAULT_WINDOW_SIZE; | ||
9537 | GNUNET_break (GNUNET_YES == | ||
9538 | GNUNET_CONTAINER_multipeermap_put ( | ||
9539 | links, | ||
9540 | &vl->target, | ||
9541 | vl, | ||
9542 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)); | ||
9543 | vl->n = n; | ||
9544 | n->vl = vl; | ||
9545 | q->idle = GNUNET_YES; | ||
9546 | vl->visibility_task = | ||
9547 | GNUNET_SCHEDULER_add_at (q->validated_until, &check_link_down, vl); | ||
9548 | consider_sending_fc (vl); | ||
9549 | /* We lacked a confirmed connection to the target | ||
9550 | before, so tell CORE about it (finally!) */ | ||
9551 | cores_send_connect_info (&n->pid); | ||
9552 | send_msg_from_cache (vl); | ||
9553 | } | ||
9554 | else | ||
9555 | { | ||
9556 | /* Link was already up, remember n is also now available and we are done */ | ||
9557 | if (NULL == vl->n) | ||
9558 | { | ||
9559 | vl->n = n; | ||
9560 | n->vl = vl; | ||
9561 | if (GNUNET_YES == vl->confirmed) | ||
9562 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9563 | "Virtual link to %s could now also use direct neighbour!\n", | ||
9564 | GNUNET_i2s (&vs->pid)); | ||
9565 | } | ||
9566 | else | ||
9567 | { | ||
9568 | GNUNET_assert (n == vl->n); | ||
9569 | } | ||
9570 | if (GNUNET_NO == vl->confirmed) | ||
9571 | { | ||
9572 | vl->confirmed = GNUNET_YES; | ||
9573 | q->idle = GNUNET_YES; | ||
9574 | vl->visibility_task = | ||
9575 | GNUNET_SCHEDULER_add_at (q->validated_until, &check_link_down, vl); | ||
9576 | consider_sending_fc (vl); | ||
9577 | /* We lacked a confirmed connection to the target | ||
9578 | before, so tell CORE about it (finally!) */ | ||
9579 | cores_send_connect_info (&n->pid); | ||
9580 | send_msg_from_cache (vl); | ||
9581 | } | ||
9582 | } | ||
9583 | } | ||
9584 | |||
9585 | |||
9586 | /** | ||
9587 | * Incoming meessage. Process the request. | ||
9588 | * | ||
9589 | * @param im the send message that was received | ||
9590 | */ | ||
9591 | static void | ||
9592 | handle_incoming_msg (void *cls, | ||
9593 | const struct GNUNET_TRANSPORT_IncomingMessage *im) | ||
9594 | { | ||
9595 | struct TransportClient *tc = cls; | ||
9596 | struct CommunicatorMessageContext *cmc = | ||
9597 | GNUNET_new (struct CommunicatorMessageContext); | ||
9598 | |||
9599 | cmc->tc = tc; | ||
9600 | cmc->im = *im; | ||
9601 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9602 | "Received message with size %u and flow control id %" PRIu64 | ||
9603 | " via communicator from peer %s\n", | ||
9604 | ntohs (im->header.size), | ||
9605 | im->fc_id, | ||
9606 | GNUNET_i2s (&im->sender)); | ||
9607 | cmc->im.neighbour_sender = cmc->im.sender; | ||
9608 | cmc->mh = (const struct GNUNET_MessageHeader *) &im[1]; | ||
9609 | demultiplex_with_cmc (cmc); | ||
9610 | } | ||
9611 | |||
9612 | /** | ||
9613 | * Communicator gave us a transport address validation response. Check the | ||
9614 | * request. | ||
9615 | * | ||
9616 | * @param cls a `struct CommunicatorMessageContext` | ||
9617 | * @param fc the message that was received | ||
9618 | * @return #GNUNET_YES if message is well-formed | ||
9619 | */ | ||
9620 | static int | ||
9621 | check_flow_control (void *cls, const struct TransportFlowControlMessage *fc) | ||
9622 | { | ||
9623 | (void) cls; | ||
9624 | unsigned int number_of_addresses = ntohl (fc->number_of_addresses); | ||
9625 | |||
9626 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9627 | "Flow control header size %u size of addresses %u number of addresses %u size of message struct %lu second struct %lu\n", | ||
9628 | ntohs (fc->header.size), | ||
9629 | ntohl (fc->size_of_addresses), | ||
9630 | ntohl (fc->number_of_addresses), | ||
9631 | sizeof(struct TransportFlowControlMessage), | ||
9632 | sizeof (struct TransportGlobalNattedAddress)); | ||
9633 | |||
9634 | if (0 == number_of_addresses || ntohs (fc->header.size) == sizeof(struct TransportFlowControlMessage) + ntohl (fc->number_of_addresses) * sizeof (struct TransportGlobalNattedAddress) + ntohl (fc->size_of_addresses)) | ||
9635 | return GNUNET_OK; | ||
9636 | else | ||
9637 | { | ||
9638 | GNUNET_break_op (0); | ||
9639 | return GNUNET_SYSERR; | ||
9640 | } | ||
9641 | } | ||
9642 | |||
9643 | /** | ||
9644 | * Communicator gave us a transport address validation response. Process the | ||
9645 | * request. | ||
9646 | * | ||
9647 | * @param cls a `struct CommunicatorMessageContext` (must call | ||
9648 | * #finish_cmc_handling() when done) | ||
9649 | * @param fc the message that was received | ||
9650 | */ | ||
9651 | static void | ||
9652 | handle_flow_control (void *cls, const struct TransportFlowControlMessage *fc) | ||
9653 | { | ||
9654 | struct CommunicatorMessageContext *cmc = cls; | ||
9655 | struct VirtualLink *vl; | ||
9656 | uint32_t seq; | ||
9657 | struct GNUNET_TIME_Absolute st; | ||
9658 | uint64_t os; | ||
9659 | uint64_t wnd; | ||
9660 | uint32_t random; | ||
9661 | |||
9662 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9663 | "Received FC from %s\n", GNUNET_i2s (&cmc->im.sender)); | ||
9664 | vl = lookup_virtual_link (&cmc->im.sender); | ||
9665 | if (NULL == vl) | ||
9666 | { | ||
9667 | vl = GNUNET_new (struct VirtualLink); | ||
9668 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9669 | "No virtual link for %p FC creating new unconfirmed virtual link to %s!\n", | ||
9670 | vl, | ||
9671 | GNUNET_i2s (&cmc->im.sender)); | ||
9672 | vl->confirmed = GNUNET_NO; | ||
9673 | vl->message_uuid_ctr = | ||
9674 | GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK, UINT64_MAX); | ||
9675 | vl->target = cmc->im.sender; | ||
9676 | vl->core_recv_window = RECV_WINDOW_SIZE; | ||
9677 | vl->available_fc_window_size = DEFAULT_WINDOW_SIZE; | ||
9678 | vl->incoming_fc_window_size = DEFAULT_WINDOW_SIZE; | ||
9679 | GNUNET_break (GNUNET_YES == | ||
9680 | GNUNET_CONTAINER_multipeermap_put ( | ||
9681 | links, | ||
9682 | &vl->target, | ||
9683 | vl, | ||
9684 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)); | ||
9685 | } | ||
9686 | if (0 != ntohl (fc->number_of_addresses)) | ||
9687 | { | ||
9688 | unsigned int number_of_addresses = ntohl (fc->number_of_addresses); | ||
9689 | const char *tgnas; | ||
9690 | unsigned int off = 0; | ||
9691 | |||
9692 | tgnas = (const char *) &fc[1]; | ||
9693 | |||
9694 | for (int i = 1; i <= number_of_addresses; i++) | ||
9695 | { | ||
9696 | struct TransportGlobalNattedAddress *tgna = (struct TransportGlobalNattedAddress *) &tgnas[off]; | ||
9697 | char *addr = (char *) &tgna[1]; | ||
9698 | unsigned int address_length; | ||
9699 | |||
9700 | address_length = ntohl (tgna->address_length); | ||
9701 | off += sizeof(struct TransportGlobalNattedAddress) + address_length; | ||
9702 | |||
9703 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9704 | "received address %s length %u\n", | ||
9705 | addr, | ||
9706 | ntohl (tgna->address_length)); | ||
9707 | |||
9708 | GNUNET_NAT_add_global_address (nh, addr, ntohl (tgna->address_length)); | ||
9709 | } | ||
9710 | } | ||
9711 | st = GNUNET_TIME_absolute_ntoh (fc->sender_time); | ||
9712 | if (st.abs_value_us < vl->last_fc_timestamp.abs_value_us) | ||
9713 | { | ||
9714 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9715 | "FC dropped: Message out of order\n"); | ||
9716 | /* out of order, drop */ | ||
9717 | GNUNET_STATISTICS_update (GST_stats, | ||
9718 | "# FC dropped: message out of order", | ||
9719 | 1, | ||
9720 | GNUNET_NO); | ||
9721 | finish_cmc_handling (cmc); | ||
9722 | return; | ||
9723 | } | ||
9724 | seq = ntohl (fc->seq); | ||
9725 | if (seq < vl->last_fc_seq) | ||
9726 | { | ||
9727 | /* Wrap-around/reset of other peer; start all counters from zero */ | ||
9728 | vl->outbound_fc_window_size_used = 0; | ||
9729 | } | ||
9730 | vl->last_fc_seq = seq; | ||
9731 | vl->last_fc_timestamp = st; | ||
9732 | vl->outbound_fc_window_size = GNUNET_ntohll (fc->inbound_window_size); | ||
9733 | os = GNUNET_ntohll (fc->outbound_sent); | ||
9734 | vl->incoming_fc_window_size_loss = | ||
9735 | (int64_t) (os - vl->incoming_fc_window_size_used); | ||
9736 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9737 | "Received FC from %s, seq %u, new window %llu (loss at %lld)\n", | ||
9738 | GNUNET_i2s (&vl->target), | ||
9739 | (unsigned int) seq, | ||
9740 | (unsigned long long) vl->outbound_fc_window_size, | ||
9741 | (long long) vl->incoming_fc_window_size_loss); | ||
9742 | wnd = GNUNET_ntohll (fc->outbound_window_size); | ||
9743 | random = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, | ||
9744 | UINT32_MAX); | ||
9745 | if ((GNUNET_YES == vl->confirmed) && ((wnd < vl->incoming_fc_window_size | ||
9746 | + vl->incoming_fc_window_size_used | ||
9747 | + vl->incoming_fc_window_size_loss) || | ||
9748 | (vl->last_outbound_window_size_received | ||
9749 | != wnd) || | ||
9750 | (0 == random | ||
9751 | % FC_NO_CHANGE_REPLY_PROBABILITY))) | ||
9752 | { | ||
9753 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9754 | "Consider re-sending our FC message, as clearly the other peer's idea of the window is not up-to-date (%llu vs %llu) or %llu last received differs, or random reply %u\n", | ||
9755 | (unsigned long long) wnd, | ||
9756 | (unsigned long long) vl->incoming_fc_window_size, | ||
9757 | (unsigned long long) vl->last_outbound_window_size_received, | ||
9758 | random % FC_NO_CHANGE_REPLY_PROBABILITY); | ||
9759 | consider_sending_fc (vl); | ||
9760 | } | ||
9761 | if ((wnd == vl->incoming_fc_window_size | ||
9762 | + vl->incoming_fc_window_size_used | ||
9763 | + vl->incoming_fc_window_size_loss) && | ||
9764 | (vl->last_outbound_window_size_received == wnd) && | ||
9765 | (NULL != vl->fc_retransmit_task)) | ||
9766 | { | ||
9767 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9768 | "Stopping FC retransmission to %s: peer is current at window %llu\n", | ||
9769 | GNUNET_i2s (&vl->target), | ||
9770 | (unsigned long long) wnd); | ||
9771 | GNUNET_SCHEDULER_cancel (vl->fc_retransmit_task); | ||
9772 | vl->fc_retransmit_task = NULL; | ||
9773 | vl->fc_retransmit_count = 0; | ||
9774 | } | ||
9775 | vl->last_outbound_window_size_received = wnd; | ||
9776 | /* FC window likely increased, check transmission possibilities! */ | ||
9777 | check_vl_transmission (vl); | ||
9778 | finish_cmc_handling (cmc); | ||
9779 | } | ||
9780 | |||
9781 | |||
9782 | /** | ||
9783 | * Given an inbound message @a msg from a communicator @a cmc, | ||
9784 | * demultiplex it based on the type calling the right handler. | ||
9785 | * | ||
9786 | * @param cmc context for demultiplexing | ||
9787 | * @param msg message to demultiplex | ||
9788 | */ | ||
9789 | static void | ||
9790 | demultiplex_with_cmc (struct CommunicatorMessageContext *cmc) | ||
9791 | { | ||
9792 | struct GNUNET_MQ_MessageHandler handlers[] = | ||
9793 | { GNUNET_MQ_hd_var_size (fragment_box, | ||
9794 | GNUNET_MESSAGE_TYPE_TRANSPORT_FRAGMENT, | ||
9795 | struct TransportFragmentBoxMessage, | ||
9796 | cmc), | ||
9797 | GNUNET_MQ_hd_var_size (reliability_box, | ||
9798 | GNUNET_MESSAGE_TYPE_TRANSPORT_RELIABILITY_BOX, | ||
9799 | struct TransportReliabilityBoxMessage, | ||
9800 | cmc), | ||
9801 | GNUNET_MQ_hd_var_size (reliability_ack, | ||
9802 | GNUNET_MESSAGE_TYPE_TRANSPORT_RELIABILITY_ACK, | ||
9803 | struct TransportReliabilityAckMessage, | ||
9804 | cmc), | ||
9805 | GNUNET_MQ_hd_var_size (backchannel_encapsulation, | ||
9806 | GNUNET_MESSAGE_TYPE_TRANSPORT_BACKCHANNEL_ENCAPSULATION, | ||
9807 | struct TransportBackchannelEncapsulationMessage, | ||
9808 | cmc), | ||
9809 | GNUNET_MQ_hd_var_size (dv_learn, | ||
9810 | GNUNET_MESSAGE_TYPE_TRANSPORT_DV_LEARN, | ||
9811 | struct TransportDVLearnMessage, | ||
9812 | cmc), | ||
9813 | GNUNET_MQ_hd_var_size (dv_box, | ||
9814 | GNUNET_MESSAGE_TYPE_TRANSPORT_DV_BOX, | ||
9815 | struct TransportDVBoxMessage, | ||
9816 | cmc), | ||
9817 | GNUNET_MQ_hd_var_size (flow_control, | ||
9818 | GNUNET_MESSAGE_TYPE_TRANSPORT_FLOW_CONTROL, | ||
9819 | struct TransportFlowControlMessage, | ||
9820 | cmc), | ||
9821 | GNUNET_MQ_hd_fixed_size ( | ||
9822 | validation_challenge, | ||
9823 | GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_VALIDATION_CHALLENGE, | ||
9824 | struct TransportValidationChallengeMessage, | ||
9825 | cmc), | ||
9826 | GNUNET_MQ_hd_fixed_size ( | ||
9827 | validation_response, | ||
9828 | GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_VALIDATION_RESPONSE, | ||
9829 | struct TransportValidationResponseMessage, | ||
9830 | cmc), | ||
9831 | GNUNET_MQ_handler_end () }; | ||
9832 | int ret; | ||
9833 | const struct GNUNET_MessageHeader *msg = cmc->mh; | ||
9834 | |||
9835 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9836 | "Handling message of type %u with %u bytes\n", | ||
9837 | (unsigned int) ntohs (msg->type), | ||
9838 | (unsigned int) ntohs (msg->size)); | ||
9839 | ret = GNUNET_MQ_handle_message (handlers, msg); | ||
9840 | if (GNUNET_SYSERR == ret) | ||
9841 | { | ||
9842 | GNUNET_break (0); | ||
9843 | GNUNET_SERVICE_client_drop (cmc->tc->client); | ||
9844 | GNUNET_free (cmc); | ||
9845 | return; | ||
9846 | } | ||
9847 | if (GNUNET_NO == ret) | ||
9848 | { | ||
9849 | /* unencapsulated 'raw' message */ | ||
9850 | handle_raw_message (cmc, msg); | ||
9851 | } | ||
9852 | } | ||
9853 | |||
9854 | |||
9855 | /** | ||
9856 | * New queue became available. Check message. | ||
9857 | * | ||
9858 | * @param cls the client | ||
9859 | * @param aqm the send message that was sent | ||
9860 | */ | ||
9861 | static int | ||
9862 | check_add_queue_message (void *cls, | ||
9863 | const struct GNUNET_TRANSPORT_AddQueueMessage *aqm) | ||
9864 | { | ||
9865 | struct TransportClient *tc = cls; | ||
9866 | |||
9867 | if (CT_COMMUNICATOR != tc->type) | ||
9868 | { | ||
9869 | GNUNET_break (0); | ||
9870 | return GNUNET_SYSERR; | ||
9871 | } | ||
9872 | GNUNET_MQ_check_zero_termination (aqm); | ||
9873 | return GNUNET_OK; | ||
9874 | } | ||
9875 | |||
9876 | |||
9877 | /** | ||
9878 | * If necessary, generates the UUID for a @a pm | ||
9879 | * | ||
9880 | * @param pm pending message to generate UUID for. | ||
9881 | */ | ||
9882 | static void | ||
9883 | set_pending_message_uuid (struct PendingMessage *pm) | ||
9884 | { | ||
9885 | if (pm->msg_uuid_set) | ||
9886 | return; | ||
9887 | pm->msg_uuid.uuid = pm->vl->message_uuid_ctr++; | ||
9888 | pm->msg_uuid_set = GNUNET_YES; | ||
9889 | } | ||
9890 | |||
9891 | |||
9892 | /** | ||
9893 | * Setup data structure waiting for acknowledgements. | ||
9894 | * | ||
9895 | * @param queue queue the @a pm will be sent over | ||
9896 | * @param dvh path the message will take, may be NULL | ||
9897 | * @param pm the pending message for transmission | ||
9898 | * @return corresponding fresh pending acknowledgement | ||
9899 | */ | ||
9900 | static struct PendingAcknowledgement * | ||
9901 | prepare_pending_acknowledgement (struct Queue *queue, | ||
9902 | struct DistanceVectorHop *dvh, | ||
9903 | struct PendingMessage *pm) | ||
9904 | { | ||
9905 | struct PendingAcknowledgement *pa; | ||
9906 | |||
9907 | pa = GNUNET_new (struct PendingAcknowledgement); | ||
9908 | pa->queue = queue; | ||
9909 | pa->dvh = dvh; | ||
9910 | pa->pm = pm; | ||
9911 | do | ||
9912 | { | ||
9913 | GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_NONCE, | ||
9914 | &pa->ack_uuid, | ||
9915 | sizeof(pa->ack_uuid)); | ||
9916 | } | ||
9917 | while (GNUNET_YES != GNUNET_CONTAINER_multiuuidmap_put ( | ||
9918 | pending_acks, | ||
9919 | &pa->ack_uuid.value, | ||
9920 | pa, | ||
9921 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)); | ||
9922 | GNUNET_CONTAINER_MDLL_insert (queue, queue->pa_head, queue->pa_tail, pa); | ||
9923 | GNUNET_CONTAINER_MDLL_insert (pm, pm->pa_head, pm->pa_tail, pa); | ||
9924 | if (NULL != dvh) | ||
9925 | GNUNET_CONTAINER_MDLL_insert (dvh, dvh->pa_head, dvh->pa_tail, pa); | ||
9926 | pa->transmission_time = GNUNET_TIME_absolute_get (); | ||
9927 | pa->message_size = pm->bytes_msg; | ||
9928 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9929 | "Waiting for ACKnowledgment `%s' for <%" PRIu64 ">\n", | ||
9930 | GNUNET_uuid2s (&pa->ack_uuid.value), | ||
9931 | pm->logging_uuid); | ||
9932 | return pa; | ||
9933 | } | ||
9934 | |||
9935 | |||
9936 | /** | ||
9937 | * Fragment the given @a pm to the given @a mtu. Adds | ||
9938 | * additional fragments to the neighbour as well. If the | ||
9939 | * @a mtu is too small, generates and error for the @a pm | ||
9940 | * and returns NULL. | ||
9941 | * | ||
9942 | * @param queue which queue to fragment for | ||
9943 | * @param dvh path the message will take, or NULL | ||
9944 | * @param pm pending message to fragment for transmission | ||
9945 | * @return new message to transmit | ||
9946 | */ | ||
9947 | static struct PendingMessage * | ||
9948 | fragment_message (struct Queue *queue, | ||
9949 | struct DistanceVectorHop *dvh, | ||
9950 | struct PendingMessage *pm) | ||
9951 | { | ||
9952 | struct PendingAcknowledgement *pa; | ||
9953 | struct PendingMessage *ff; | ||
9954 | uint16_t mtu; | ||
9955 | uint16_t msize; | ||
9956 | |||
9957 | mtu = (UINT16_MAX == queue->mtu) | ||
9958 | ? UINT16_MAX - sizeof(struct GNUNET_TRANSPORT_SendMessageTo) | ||
9959 | : queue->mtu; | ||
9960 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9961 | "Fragmenting message <%" PRIu64 | ||
9962 | "> with size %u to %s for MTU %u\n", | ||
9963 | pm->logging_uuid, | ||
9964 | pm->bytes_msg, | ||
9965 | GNUNET_i2s (&pm->vl->target), | ||
9966 | (unsigned int) mtu); | ||
9967 | set_pending_message_uuid (pm); | ||
9968 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
9969 | "Fragmenting message %" PRIu64 " <%" PRIu64 | ||
9970 | "> with size %u to %s for MTU %u\n", | ||
9971 | pm->msg_uuid.uuid, | ||
9972 | pm->logging_uuid, | ||
9973 | pm->bytes_msg, | ||
9974 | GNUNET_i2s (&pm->vl->target), | ||
9975 | (unsigned int) mtu); | ||
9976 | |||
9977 | /* This invariant is established in #handle_add_queue_message() */ | ||
9978 | GNUNET_assert (mtu > sizeof(struct TransportFragmentBoxMessage)); | ||
9979 | |||
9980 | /* select fragment for transmission, descending the tree if it has | ||
9981 | been expanded until we are at a leaf or at a fragment that is small | ||
9982 | enough | ||
9983 | */ | ||
9984 | ff = pm; | ||
9985 | msize = ff->bytes_msg; | ||
9986 | |||
9987 | while (((ff->bytes_msg > mtu) || (pm == ff)) && | ||
9988 | (ff->frag_off == msize) && (NULL != ff->head_frag)) | ||
9989 | { | ||
9990 | ff = ff->head_frag; /* descent into fragmented fragments */ | ||
9991 | msize = ff->bytes_msg - sizeof(struct TransportFragmentBoxMessage); | ||
9992 | } | ||
9993 | |||
9994 | if (((ff->bytes_msg > mtu) || (pm == ff)) && (ff->frag_off < msize)) | ||
9995 | { | ||
9996 | /* Did not yet calculate all fragments, calculate next fragment */ | ||
9997 | struct PendingMessage *frag; | ||
9998 | struct TransportFragmentBoxMessage tfb; | ||
9999 | const char *orig; | ||
10000 | char *msg; | ||
10001 | uint16_t fragmax; | ||
10002 | uint16_t fragsize; | ||
10003 | uint16_t msize; | ||
10004 | uint16_t xoff = 0; | ||
10005 | pm->frag_count++; | ||
10006 | |||
10007 | orig = (const char *) &ff[1]; | ||
10008 | msize = ff->bytes_msg; | ||
10009 | if (pm != ff) | ||
10010 | { | ||
10011 | const struct TransportFragmentBoxMessage *tfbo; | ||
10012 | |||
10013 | tfbo = (const struct TransportFragmentBoxMessage *) orig; | ||
10014 | orig += sizeof(struct TransportFragmentBoxMessage); | ||
10015 | msize -= sizeof(struct TransportFragmentBoxMessage); | ||
10016 | xoff = ntohs (tfbo->frag_off); | ||
10017 | } | ||
10018 | fragmax = mtu - sizeof(struct TransportFragmentBoxMessage); | ||
10019 | fragsize = GNUNET_MIN (msize - ff->frag_off, fragmax); | ||
10020 | frag = | ||
10021 | GNUNET_malloc (sizeof(struct PendingMessage) | ||
10022 | + sizeof(struct TransportFragmentBoxMessage) + fragsize); | ||
10023 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10024 | "3 created pm %p from pm %p storing vl %p from pm %p\n", | ||
10025 | frag, | ||
10026 | ff, | ||
10027 | pm->vl, | ||
10028 | pm); | ||
10029 | frag->logging_uuid = logging_uuid_gen++; | ||
10030 | frag->vl = pm->vl; | ||
10031 | frag->frag_parent = ff; | ||
10032 | frag->timeout = pm->timeout; | ||
10033 | frag->bytes_msg = sizeof(struct TransportFragmentBoxMessage) + fragsize; | ||
10034 | frag->pmt = PMT_FRAGMENT_BOX; | ||
10035 | msg = (char *) &frag[1]; | ||
10036 | tfb.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_FRAGMENT); | ||
10037 | tfb.header.size = | ||
10038 | htons (sizeof(struct TransportFragmentBoxMessage) + fragsize); | ||
10039 | pa = prepare_pending_acknowledgement (queue, dvh, frag); | ||
10040 | tfb.ack_uuid = pa->ack_uuid; | ||
10041 | tfb.msg_uuid = pm->msg_uuid; | ||
10042 | tfb.frag_off = htons (ff->frag_off + xoff); | ||
10043 | tfb.msg_size = htons (pm->bytes_msg); | ||
10044 | memcpy (msg, &tfb, sizeof(tfb)); | ||
10045 | memcpy (&msg[sizeof(tfb)], &orig[ff->frag_off], fragsize); | ||
10046 | GNUNET_CONTAINER_MDLL_insert (frag, ff->head_frag, | ||
10047 | ff->tail_frag, frag); | ||
10048 | ff->frag_off += fragsize; | ||
10049 | ff = frag; | ||
10050 | } | ||
10051 | |||
10052 | /* Move head to the tail and return it */ | ||
10053 | GNUNET_CONTAINER_MDLL_remove (frag, | ||
10054 | ff->frag_parent->head_frag, | ||
10055 | ff->frag_parent->tail_frag, | ||
10056 | ff); | ||
10057 | GNUNET_CONTAINER_MDLL_insert_tail (frag, | ||
10058 | ff->frag_parent->head_frag, | ||
10059 | ff->frag_parent->tail_frag, | ||
10060 | ff); | ||
10061 | |||
10062 | return ff; | ||
10063 | } | ||
10064 | |||
10065 | |||
10066 | /** | ||
10067 | * Reliability-box the given @a pm. On error (can there be any), NULL | ||
10068 | * may be returned, otherwise the "replacement" for @a pm (which | ||
10069 | * should then be added to the respective neighbour's queue instead of | ||
10070 | * @a pm). If the @a pm is already fragmented or reliability boxed, | ||
10071 | * or itself an ACK, this function simply returns @a pm. | ||
10072 | * | ||
10073 | * @param queue which queue to prepare transmission for | ||
10074 | * @param dvh path the message will take, or NULL | ||
10075 | * @param pm pending message to box for transmission over unreliabile queue | ||
10076 | * @return new message to transmit | ||
10077 | */ | ||
10078 | static struct PendingMessage * | ||
10079 | reliability_box_message (struct Queue *queue, | ||
10080 | struct DistanceVectorHop *dvh, | ||
10081 | struct PendingMessage *pm) | ||
10082 | { | ||
10083 | struct TransportReliabilityBoxMessage rbox; | ||
10084 | struct PendingAcknowledgement *pa; | ||
10085 | struct PendingMessage *bpm; | ||
10086 | char *msg; | ||
10087 | |||
10088 | if ((PMT_CORE != pm->pmt) && (PMT_DV_BOX != pm->pmt)) | ||
10089 | return pm; /* already fragmented or reliability boxed, or control message: | ||
10090 | do nothing */ | ||
10091 | if (NULL != pm->bpm) | ||
10092 | return pm->bpm; /* already computed earlier: do nothing */ | ||
10093 | // TODO I guess we do not need this assertion. We might have a DLL with | ||
10094 | // fragments, because the MTU changed, and we do not need to fragment anymore. | ||
10095 | // But we should keep the fragments until message was completed, because | ||
10096 | // the MTU might change again. | ||
10097 | // GNUNET_assert (NULL == pm->head_frag); | ||
10098 | if (pm->bytes_msg + sizeof(rbox) > UINT16_MAX) | ||
10099 | { | ||
10100 | /* failed hard */ | ||
10101 | GNUNET_break (0); | ||
10102 | client_send_response (pm); | ||
10103 | return NULL; | ||
10104 | } | ||
10105 | |||
10106 | pa = prepare_pending_acknowledgement (queue, dvh, pm); | ||
10107 | |||
10108 | bpm = GNUNET_malloc (sizeof(struct PendingMessage) + sizeof(rbox) | ||
10109 | + pm->bytes_msg); | ||
10110 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10111 | "4 created pm %p storing vl %p from pm %p\n", | ||
10112 | bpm, | ||
10113 | pm->vl, | ||
10114 | pm); | ||
10115 | bpm->logging_uuid = logging_uuid_gen++; | ||
10116 | bpm->vl = pm->vl; | ||
10117 | bpm->frag_parent = pm; | ||
10118 | // Why was this needed? | ||
10119 | // GNUNET_CONTAINER_MDLL_insert (frag, pm->head_frag, pm->tail_frag, bpm); | ||
10120 | bpm->timeout = pm->timeout; | ||
10121 | bpm->pmt = PMT_RELIABILITY_BOX; | ||
10122 | bpm->bytes_msg = pm->bytes_msg + sizeof(rbox); | ||
10123 | set_pending_message_uuid (bpm); | ||
10124 | rbox.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_RELIABILITY_BOX); | ||
10125 | rbox.header.size = htons (sizeof(rbox) + pm->bytes_msg); | ||
10126 | rbox.ack_countdown = htonl (0); // FIXME: implement ACK countdown support | ||
10127 | |||
10128 | rbox.ack_uuid = pa->ack_uuid; | ||
10129 | msg = (char *) &bpm[1]; | ||
10130 | memcpy (msg, &rbox, sizeof(rbox)); | ||
10131 | memcpy (&msg[sizeof(rbox)], &pm[1], pm->bytes_msg); | ||
10132 | pm->bpm = bpm; | ||
10133 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10134 | "Preparing reliability box for message <%" PRIu64 | ||
10135 | "> of size %d (%d) to %s on queue %s\n", | ||
10136 | pm->logging_uuid, | ||
10137 | pm->bytes_msg, | ||
10138 | ntohs (((const struct GNUNET_MessageHeader *) &pm[1])->size), | ||
10139 | GNUNET_i2s (&pm->vl->target), | ||
10140 | queue->address); | ||
10141 | return bpm; | ||
10142 | } | ||
10143 | |||
10144 | |||
10145 | static void | ||
10146 | reorder_root_pm (struct PendingMessage *pm, | ||
10147 | struct GNUNET_TIME_Absolute next_attempt) | ||
10148 | { | ||
10149 | struct VirtualLink *vl = pm->vl; | ||
10150 | struct PendingMessage *pos; | ||
10151 | |||
10152 | /* re-insert sort in neighbour list */ | ||
10153 | GNUNET_CONTAINER_MDLL_remove (vl, | ||
10154 | vl->pending_msg_head, | ||
10155 | vl->pending_msg_tail, | ||
10156 | pm); | ||
10157 | pos = vl->pending_msg_tail; | ||
10158 | while ((NULL != pos) && | ||
10159 | (next_attempt.abs_value_us > pos->next_attempt.abs_value_us)) | ||
10160 | pos = pos->prev_vl; | ||
10161 | GNUNET_CONTAINER_MDLL_insert_after (vl, | ||
10162 | vl->pending_msg_head, | ||
10163 | vl->pending_msg_tail, | ||
10164 | pos, | ||
10165 | pm); | ||
10166 | } | ||
10167 | |||
10168 | |||
10169 | static unsigned int | ||
10170 | check_next_attempt_tree (struct PendingMessage *pm, struct PendingMessage *root) | ||
10171 | { | ||
10172 | struct PendingMessage *pos; | ||
10173 | enum GNUNET_GenericReturnValue frags_in_flight; | ||
10174 | |||
10175 | pos = pm->head_frag; | ||
10176 | while (NULL != pos) | ||
10177 | { | ||
10178 | if (pos->frags_in_flight_round == pm->frags_in_flight_round || | ||
10179 | GNUNET_NO == check_next_attempt_tree (pos, root)) | ||
10180 | frags_in_flight = GNUNET_NO; | ||
10181 | else | ||
10182 | { | ||
10183 | frags_in_flight = GNUNET_YES; | ||
10184 | break; | ||
10185 | } | ||
10186 | pos = pos->next_frag; | ||
10187 | } | ||
10188 | |||
10189 | return frags_in_flight; | ||
10190 | } | ||
10191 | |||
10192 | |||
10193 | static void | ||
10194 | harmonize_flight_round (struct PendingMessage *pm) | ||
10195 | { | ||
10196 | struct PendingMessage *pos; | ||
10197 | |||
10198 | pos = pm->head_frag; | ||
10199 | while (NULL != pos) | ||
10200 | { | ||
10201 | pos->frags_in_flight_round = pm->frags_in_flight_round; | ||
10202 | harmonize_flight_round (pos); | ||
10203 | pos = pos->next_frag; | ||
10204 | } | ||
10205 | } | ||
10206 | |||
10207 | |||
10208 | /** | ||
10209 | * Change the value of the `next_attempt` field of @a pm | ||
10210 | * to @a next_attempt and re-order @a pm in the transmission | ||
10211 | * list as required by the new timestamp. | ||
10212 | * | ||
10213 | * @param pm a pending message to update | ||
10214 | * @param next_attempt timestamp to use | ||
10215 | */ | ||
10216 | static void | ||
10217 | update_pm_next_attempt (struct PendingMessage *pm, | ||
10218 | struct GNUNET_TIME_Absolute next_attempt) | ||
10219 | { | ||
10220 | if (NULL == pm->frag_parent) | ||
10221 | { | ||
10222 | pm->next_attempt = next_attempt; | ||
10223 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10224 | "Next attempt for message <%" PRIu64 "> set to %" PRIu64 "\n", | ||
10225 | pm->logging_uuid, | ||
10226 | next_attempt.abs_value_us); | ||
10227 | reorder_root_pm (pm, next_attempt); | ||
10228 | } | ||
10229 | else if ((PMT_RELIABILITY_BOX == pm->pmt) || (PMT_DV_BOX == pm->pmt))// || (PMT_FRAGMENT_BOX == pm->pmt)) | ||
10230 | { | ||
10231 | struct PendingMessage *root = pm->frag_parent; | ||
10232 | |||
10233 | while (NULL != root->frag_parent) | ||
10234 | root = root->frag_parent; | ||
10235 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10236 | "Next attempt for root message <%" PRIu64 "> set to %s\n", | ||
10237 | root->logging_uuid, | ||
10238 | GNUNET_STRINGS_absolute_time_to_string (next_attempt)); | ||
10239 | root->next_attempt = next_attempt; | ||
10240 | reorder_root_pm (root, next_attempt); | ||
10241 | } | ||
10242 | else | ||
10243 | { | ||
10244 | struct PendingMessage *root = pm->frag_parent; | ||
10245 | |||
10246 | while (NULL != root->frag_parent && PMT_DV_BOX != root->pmt) | ||
10247 | root = root->frag_parent; | ||
10248 | |||
10249 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10250 | "frag_count next atempt %u\n", | ||
10251 | root->frag_count); | ||
10252 | |||
10253 | if (GNUNET_NO == root->frags_in_flight) | ||
10254 | { | ||
10255 | root->next_attempt = next_attempt; | ||
10256 | harmonize_flight_round (root); | ||
10257 | root->frags_in_flight_round++; | ||
10258 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10259 | "Next attempt for fragmented message <%" PRIu64 "> (<%" PRIu64 | ||
10260 | ">)set to %" PRIu64 "\n", | ||
10261 | pm->logging_uuid, | ||
10262 | root->logging_uuid, | ||
10263 | next_attempt.abs_value_us); | ||
10264 | } | ||
10265 | |||
10266 | pm->next_attempt = root->next_attempt; | ||
10267 | pm->frags_in_flight_round = root->frags_in_flight_round; | ||
10268 | harmonize_flight_round (pm); | ||
10269 | |||
10270 | if (root->bytes_msg == root->frag_off) | ||
10271 | root->frags_in_flight = check_next_attempt_tree (root, root); | ||
10272 | else | ||
10273 | root->frags_in_flight = GNUNET_YES; | ||
10274 | |||
10275 | if (GNUNET_NO == root->frags_in_flight) | ||
10276 | { | ||
10277 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10278 | "We have no fragments in flight for message %" PRIu64 | ||
10279 | ", reorder root! Next attempt is %" PRIu64 "\n", | ||
10280 | root->logging_uuid, | ||
10281 | root->next_attempt.abs_value_us); | ||
10282 | if (PMT_DV_BOX == root->pmt) | ||
10283 | root = root->frag_parent; | ||
10284 | reorder_root_pm (root, root->next_attempt); | ||
10285 | // root->next_attempt = GNUNET_TIME_UNIT_ZERO_ABS; | ||
10286 | } | ||
10287 | else | ||
10288 | { | ||
10289 | double factor = ((double) root->frag_count - 1) | ||
10290 | / (double) root->frag_count; | ||
10291 | struct GNUNET_TIME_Relative s1; | ||
10292 | struct GNUNET_TIME_Relative s2; | ||
10293 | struct GNUNET_TIME_Relative plus_mean = | ||
10294 | GNUNET_TIME_absolute_get_remaining (root->next_attempt); | ||
10295 | struct GNUNET_TIME_Relative plus = GNUNET_TIME_absolute_get_remaining ( | ||
10296 | next_attempt); | ||
10297 | |||
10298 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10299 | "frag_count %u after factor\n", | ||
10300 | root->frag_count); | ||
10301 | s1 = GNUNET_TIME_relative_multiply_double (plus_mean, | ||
10302 | factor); | ||
10303 | s2 = GNUNET_TIME_relative_divide (plus, | ||
10304 | root->frag_count); | ||
10305 | plus_mean = GNUNET_TIME_relative_add (s1, s2); | ||
10306 | root->next_attempt = GNUNET_TIME_relative_to_absolute (plus_mean); | ||
10307 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10308 | "We have fragments in flight for message %" PRIu64 | ||
10309 | ", do not reorder root! Actual next attempt %" PRIu64 "\n", | ||
10310 | root->logging_uuid, | ||
10311 | root->next_attempt.abs_value_us); | ||
10312 | } | ||
10313 | } | ||
10314 | } | ||
10315 | |||
10316 | |||
10317 | /** | ||
10318 | * Context for #select_best_pending_from_link(). | ||
10319 | */ | ||
10320 | struct PendingMessageScoreContext | ||
10321 | { | ||
10322 | /** | ||
10323 | * Set to the best message that was found, NULL for none. | ||
10324 | */ | ||
10325 | struct PendingMessage *best; | ||
10326 | |||
10327 | /** | ||
10328 | * DVH that @e best should take, or NULL for direct transmission. | ||
10329 | */ | ||
10330 | struct DistanceVectorHop *dvh; | ||
10331 | |||
10332 | /** | ||
10333 | * What is the estimated total overhead for this message? | ||
10334 | */ | ||
10335 | size_t real_overhead; | ||
10336 | |||
10337 | /** | ||
10338 | * Number of pending messages we seriously considered this time. | ||
10339 | */ | ||
10340 | unsigned int consideration_counter; | ||
10341 | |||
10342 | /** | ||
10343 | * Did we have to fragment? | ||
10344 | */ | ||
10345 | int frag; | ||
10346 | |||
10347 | /** | ||
10348 | * Did we have to reliability box? | ||
10349 | */ | ||
10350 | int relb; | ||
10351 | |||
10352 | /** | ||
10353 | * There are pending messages, but it was to early to send one of them. | ||
10354 | */ | ||
10355 | int to_early; | ||
10356 | |||
10357 | /** | ||
10358 | * There is a pending messages we are sending fragments at the moment. | ||
10359 | */ | ||
10360 | unsigned int frags_in_flight; | ||
10361 | |||
10362 | /** | ||
10363 | * When will we try to transmit the message again for which it was to early to retry. | ||
10364 | */ | ||
10365 | struct GNUNET_TIME_Relative to_early_retry_delay; | ||
10366 | }; | ||
10367 | |||
10368 | |||
10369 | /** | ||
10370 | * Select the best pending message from @a vl for transmission | ||
10371 | * via @a queue. | ||
10372 | * | ||
10373 | * @param[in,out] sc best message so far (NULL for none), plus scoring data | ||
10374 | * @param queue the queue that will be used for transmission | ||
10375 | * @param vl the virtual link providing the messages | ||
10376 | * @param dvh path we are currently considering, or NULL for none | ||
10377 | * @param overhead number of bytes of overhead to be expected | ||
10378 | * from DV encapsulation (0 for without DV) | ||
10379 | */ | ||
10380 | static void | ||
10381 | select_best_pending_from_link (struct PendingMessageScoreContext *sc, | ||
10382 | struct Queue *queue, | ||
10383 | struct VirtualLink *vl, | ||
10384 | struct DistanceVectorHop *dvh, | ||
10385 | size_t overhead) | ||
10386 | { | ||
10387 | struct GNUNET_TIME_Absolute now; | ||
10388 | |||
10389 | now = GNUNET_TIME_absolute_get (); | ||
10390 | sc->to_early = GNUNET_NO; | ||
10391 | sc->frags_in_flight = GNUNET_NO; | ||
10392 | for (struct PendingMessage *pos = vl->pending_msg_head; NULL != pos; | ||
10393 | pos = pos->next_vl) | ||
10394 | { | ||
10395 | size_t real_overhead = overhead; | ||
10396 | int frag; | ||
10397 | int relb; | ||
10398 | |||
10399 | if ((NULL != dvh) && (PMT_DV_BOX == pos->pmt)) | ||
10400 | { | ||
10401 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10402 | "DV messages must not be DV-routed to next hop!\n"); | ||
10403 | continue; /* DV messages must not be DV-routed to next hop! */ | ||
10404 | } | ||
10405 | if (pos->next_attempt.abs_value_us > now.abs_value_us) | ||
10406 | { | ||
10407 | if (GNUNET_YES == pos->frags_in_flight) | ||
10408 | { | ||
10409 | sc->frags_in_flight = GNUNET_YES; | ||
10410 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10411 | "Fragments in flight for message %" PRIu64 "\n", | ||
10412 | pos->logging_uuid); | ||
10413 | } | ||
10414 | else | ||
10415 | { | ||
10416 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10417 | "Maybe too early, because message are sorted by next_attempt, if there are no fragments in flight.Checked message %" | ||
10418 | PRIu64 "\n", | ||
10419 | pos->logging_uuid); | ||
10420 | sc->to_early = GNUNET_YES; | ||
10421 | sc->to_early_retry_delay = GNUNET_TIME_absolute_get_remaining ( | ||
10422 | pos->next_attempt); | ||
10423 | continue; | ||
10424 | } | ||
10425 | // break; /* too early for all messages, they are sorted by next_attempt */ | ||
10426 | } | ||
10427 | if (NULL != pos->qe) | ||
10428 | { | ||
10429 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10430 | "not eligible\n"); | ||
10431 | continue; /* not eligible */ | ||
10432 | } | ||
10433 | sc->consideration_counter++; | ||
10434 | /* determine if we have to fragment, if so add fragmentation | ||
10435 | overhead! */ | ||
10436 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10437 | "check %" PRIu64 " for sc->best\n", | ||
10438 | pos->logging_uuid); | ||
10439 | frag = GNUNET_NO; | ||
10440 | if (((0 != queue->mtu) && | ||
10441 | (pos->bytes_msg + real_overhead > queue->mtu)) || | ||
10442 | (pos->bytes_msg > UINT16_MAX - sizeof(struct | ||
10443 | GNUNET_TRANSPORT_SendMessageTo)) | ||
10444 | || | ||
10445 | (NULL != pos->head_frag /* fragments already exist, should | ||
10446 | respect that even if MTU is UINT16_MAX for | ||
10447 | this queue */)) | ||
10448 | { | ||
10449 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10450 | "fragment msg with size %u, realoverhead is %lu\n", | ||
10451 | pos->bytes_msg, | ||
10452 | real_overhead); | ||
10453 | frag = GNUNET_YES; | ||
10454 | if (GNUNET_TRANSPORT_CC_RELIABLE == queue->tc->details.communicator.cc) | ||
10455 | { | ||
10456 | /* FIXME-FRAG-REL-UUID: we could use an optimized, shorter fragmentation | ||
10457 | header without the ACK UUID when using a *reliable* channel! */ | ||
10458 | } | ||
10459 | real_overhead = overhead + sizeof(struct TransportFragmentBoxMessage); | ||
10460 | } | ||
10461 | /* determine if we have to reliability-box, if so add reliability box | ||
10462 | overhead */ | ||
10463 | relb = GNUNET_NO; | ||
10464 | if ((GNUNET_NO == frag) && | ||
10465 | (0 == (pos->prefs & GNUNET_MQ_PREF_UNRELIABLE)) && | ||
10466 | (GNUNET_TRANSPORT_CC_RELIABLE != queue->tc->details.communicator.cc)) | ||
10467 | { | ||
10468 | real_overhead += sizeof(struct TransportReliabilityBoxMessage); | ||
10469 | |||
10470 | if ((0 != queue->mtu) && (pos->bytes_msg + real_overhead > queue->mtu)) | ||
10471 | { | ||
10472 | frag = GNUNET_YES; | ||
10473 | real_overhead = overhead + sizeof(struct TransportFragmentBoxMessage); | ||
10474 | } | ||
10475 | else | ||
10476 | { | ||
10477 | relb = GNUNET_YES; | ||
10478 | } | ||
10479 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10480 | "Create reliability box of msg with size %u, realoverhead is %lu %u %u %u\n", | ||
10481 | pos->bytes_msg, | ||
10482 | real_overhead, | ||
10483 | queue->mtu, | ||
10484 | frag, | ||
10485 | relb); | ||
10486 | } | ||
10487 | |||
10488 | /* Finally, compare to existing 'best' in sc to see if this 'pos' pending | ||
10489 | message would beat it! */ | ||
10490 | if (GNUNET_NO == sc->frags_in_flight && NULL != sc->best) | ||
10491 | { | ||
10492 | /* CHECK if pos fits queue BETTER (=smaller) than pm, if not: continue; | ||
10493 | OPTIMIZE-ME: This is a heuristic, which so far has NOT been | ||
10494 | experimentally validated. There may be some huge potential for | ||
10495 | improvement here. Also, we right now only compare how well the | ||
10496 | given message fits _this_ queue, and do not consider how well other | ||
10497 | queues might suit the message. Taking other queues into consideration | ||
10498 | may further improve the result, but could also be expensive | ||
10499 | in terms of CPU time. */ | ||
10500 | long long sc_score = sc->frag * 40 + sc->relb * 20 + sc->real_overhead; | ||
10501 | long long pm_score = frag * 40 + relb * 20 + real_overhead; | ||
10502 | long long time_delta = | ||
10503 | (sc->best->next_attempt.abs_value_us - pos->next_attempt.abs_value_us) | ||
10504 | / 1000LL; | ||
10505 | |||
10506 | /* "time_delta" considers which message has been 'ready' for transmission | ||
10507 | for longer, if a message has a preference for low latency, increase | ||
10508 | the weight of the time_delta by 10x if it is favorable for that message */ | ||
10509 | if ((0 != (pos->prefs & GNUNET_MQ_PREF_LOW_LATENCY)) && | ||
10510 | (0 != (sc->best->prefs & GNUNET_MQ_PREF_LOW_LATENCY))) | ||
10511 | time_delta *= 10; /* increase weight (always, both are low latency) */ | ||
10512 | else if ((0 != (pos->prefs & GNUNET_MQ_PREF_LOW_LATENCY)) && | ||
10513 | (time_delta > 0)) | ||
10514 | time_delta *= 10; /* increase weight, favors 'pos', which is low latency */ | ||
10515 | else if ((0 != (sc->best->prefs & GNUNET_MQ_PREF_LOW_LATENCY)) && | ||
10516 | (time_delta < 0)) | ||
10517 | time_delta *= 10; /* increase weight, favors 'sc->best', which is low latency */ | ||
10518 | if (0 != queue->mtu) | ||
10519 | { | ||
10520 | /* Grant bonus if we are below MTU, larger bonus the closer we will | ||
10521 | be to the MTU */ | ||
10522 | if (queue->mtu > sc->real_overhead + sc->best->bytes_msg) | ||
10523 | sc_score -= queue->mtu - (sc->real_overhead + sc->best->bytes_msg); | ||
10524 | if (queue->mtu > real_overhead + pos->bytes_msg) | ||
10525 | pm_score -= queue->mtu - (real_overhead + pos->bytes_msg); | ||
10526 | } | ||
10527 | if (sc_score + time_delta > pm_score) | ||
10528 | { | ||
10529 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10530 | "sc_score of %" PRIu64 " larger, keep sc->best %" PRIu64 | ||
10531 | "\n", | ||
10532 | pos->logging_uuid, | ||
10533 | sc->best->logging_uuid); | ||
10534 | continue; /* sc_score larger, keep sc->best */ | ||
10535 | } | ||
10536 | } | ||
10537 | sc->best = pos; | ||
10538 | sc->dvh = dvh; | ||
10539 | sc->frag = frag; | ||
10540 | sc->relb = relb; | ||
10541 | sc->real_overhead = real_overhead; | ||
10542 | } | ||
10543 | } | ||
10544 | |||
10545 | |||
10546 | /** | ||
10547 | * Function to call to further operate on the now DV encapsulated | ||
10548 | * message @a hdr, forwarding it via @a next_hop under respect of | ||
10549 | * @a options. | ||
10550 | * | ||
10551 | * @param cls a `struct PendingMessageScoreContext` | ||
10552 | * @param next_hop next hop of the DV path | ||
10553 | * @param hdr encapsulated message, technically a `struct TransportDVBoxMessage` | ||
10554 | * @param options options of the original message | ||
10555 | */ | ||
10556 | static void | ||
10557 | extract_box_cb (void *cls, | ||
10558 | struct Neighbour *next_hop, | ||
10559 | const struct GNUNET_MessageHeader *hdr, | ||
10560 | enum RouteMessageOptions options) | ||
10561 | { | ||
10562 | struct PendingMessageScoreContext *sc = cls; | ||
10563 | struct PendingMessage *pm = sc->best; | ||
10564 | struct PendingMessage *bpm; | ||
10565 | uint16_t bsize = ntohs (hdr->size); | ||
10566 | |||
10567 | GNUNET_assert (NULL == pm->bpm); | ||
10568 | bpm = GNUNET_malloc (sizeof(struct PendingMessage) + bsize); | ||
10569 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10570 | "5 created pm %p storing vl %p from pm %p\n", | ||
10571 | bpm, | ||
10572 | pm->vl, | ||
10573 | pm); | ||
10574 | bpm->logging_uuid = logging_uuid_gen++; | ||
10575 | bpm->pmt = PMT_DV_BOX; | ||
10576 | bpm->vl = pm->vl; | ||
10577 | bpm->timeout = pm->timeout; | ||
10578 | bpm->bytes_msg = bsize; | ||
10579 | bpm->frag_parent = pm; | ||
10580 | set_pending_message_uuid (bpm); | ||
10581 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10582 | "Creating DV Box %" PRIu64 " for original message %" PRIu64 | ||
10583 | " (next hop is %s)\n", | ||
10584 | bpm->logging_uuid, | ||
10585 | pm->logging_uuid, | ||
10586 | GNUNET_i2s (&next_hop->pid)); | ||
10587 | memcpy (&bpm[1], hdr, bsize); | ||
10588 | pm->bpm = bpm; | ||
10589 | } | ||
10590 | |||
10591 | |||
10592 | /** | ||
10593 | * We believe we are ready to transmit a `struct PendingMessage` on a | ||
10594 | * queue, the big question is which one! We need to see if there is | ||
10595 | * one pending that is allowed by flow control and congestion control | ||
10596 | * and (ideally) matches our queue's performance profile. | ||
10597 | * | ||
10598 | * If such a message is found, we give the message to the communicator | ||
10599 | * for transmission (updating the tracker, and re-scheduling ourselves | ||
10600 | * if applicable). | ||
10601 | * | ||
10602 | * If no such message is found, the queue's `idle` field must be set | ||
10603 | * to #GNUNET_YES. | ||
10604 | * | ||
10605 | * @param cls the `struct Queue` to process transmissions for | ||
10606 | */ | ||
10607 | static void | ||
10608 | transmit_on_queue (void *cls) | ||
10609 | { | ||
10610 | struct Queue *queue = cls; | ||
10611 | struct Neighbour *n = queue->neighbour; | ||
10612 | struct PendingMessageScoreContext sc; | ||
10613 | struct PendingMessage *pm; | ||
10614 | |||
10615 | queue->transmit_task = NULL; | ||
10616 | if (NULL == n->vl) | ||
10617 | { | ||
10618 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10619 | "Virtual link `%s' is down, cannot have PM for queue `%s'\n", | ||
10620 | GNUNET_i2s (&n->pid), | ||
10621 | queue->address); | ||
10622 | queue->idle = GNUNET_YES; | ||
10623 | return; | ||
10624 | } | ||
10625 | memset (&sc, 0, sizeof(sc)); | ||
10626 | select_best_pending_from_link (&sc, queue, n->vl, NULL, 0); | ||
10627 | if (NULL == sc.best) | ||
10628 | { | ||
10629 | /* Also look at DVH that have the n as first hop! */ | ||
10630 | for (struct DistanceVectorHop *dvh = n->dv_head; NULL != dvh; | ||
10631 | dvh = dvh->next_neighbour) | ||
10632 | { | ||
10633 | select_best_pending_from_link (&sc, | ||
10634 | queue, | ||
10635 | dvh->dv->vl, | ||
10636 | dvh, | ||
10637 | sizeof(struct GNUNET_PeerIdentity) | ||
10638 | * (1 + dvh->distance) | ||
10639 | + sizeof(struct TransportDVBoxMessage) | ||
10640 | + sizeof(struct TransportDVBoxPayloadP)); | ||
10641 | } | ||
10642 | } | ||
10643 | if (NULL == sc.best) | ||
10644 | { | ||
10645 | /* no message pending, nothing to do here! */ | ||
10646 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10647 | "No pending messages, queue `%s' to %s now idle\n", | ||
10648 | queue->address, | ||
10649 | GNUNET_i2s (&n->pid)); | ||
10650 | if (GNUNET_YES == sc.to_early) | ||
10651 | schedule_transmit_on_queue (sc.to_early_retry_delay, | ||
10652 | queue, | ||
10653 | GNUNET_SCHEDULER_PRIORITY_DEFAULT); | ||
10654 | queue->idle = GNUNET_YES; | ||
10655 | return; | ||
10656 | } | ||
10657 | /* There is a message pending, we are certainly not idle */ | ||
10658 | queue->idle = GNUNET_NO; | ||
10659 | |||
10660 | /* Given selection in `sc`, do transmission */ | ||
10661 | pm = sc.best; | ||
10662 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10663 | "Selected message <%" PRIu64 ">\n", | ||
10664 | pm->logging_uuid); | ||
10665 | if (NULL != sc.dvh) | ||
10666 | { | ||
10667 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10668 | "Is this %u a DV box?\n", | ||
10669 | pm->pmt); | ||
10670 | GNUNET_assert (PMT_DV_BOX != pm->pmt); | ||
10671 | if ((NULL != sc.best->bpm) && (sc.best->bpm->used_dvh != sc.dvh)) | ||
10672 | { | ||
10673 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10674 | "Discard old box, because we have a new DV path.\n"); | ||
10675 | free_pending_message (sc.best->bpm); | ||
10676 | sc.best->bpm = NULL; | ||
10677 | } | ||
10678 | |||
10679 | if (NULL == sc.best->bpm) | ||
10680 | { | ||
10681 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10682 | "encapsulate_for_dv 2\n"); | ||
10683 | encapsulate_for_dv (sc.dvh->dv, | ||
10684 | 1, | ||
10685 | &sc.dvh, | ||
10686 | (const struct GNUNET_MessageHeader *) &sc.best[1], | ||
10687 | &extract_box_cb, | ||
10688 | &sc, | ||
10689 | RMO_NONE, | ||
10690 | GNUNET_NO); | ||
10691 | GNUNET_assert (NULL != sc.best->bpm); | ||
10692 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10693 | "%lu %lu %lu %lu %u\n", | ||
10694 | sizeof(struct GNUNET_PeerIdentity), | ||
10695 | sizeof(struct TransportDVBoxMessage), | ||
10696 | sizeof(struct TransportDVBoxPayloadP), | ||
10697 | sizeof(struct TransportFragmentBoxMessage), | ||
10698 | ((const struct GNUNET_MessageHeader *) &sc.best[1])->size); | ||
10699 | sc.best->bpm->used_dvh = sc.dvh; | ||
10700 | } | ||
10701 | pm = sc.best->bpm; | ||
10702 | } | ||
10703 | if (GNUNET_YES == sc.frag) | ||
10704 | { | ||
10705 | pm = fragment_message (queue, sc.dvh, pm); | ||
10706 | if (NULL == pm) | ||
10707 | { | ||
10708 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10709 | "Fragmentation failed queue %s to %s for <%" PRIu64 | ||
10710 | ">, trying again\n", | ||
10711 | queue->address, | ||
10712 | GNUNET_i2s (&n->pid), | ||
10713 | sc.best->logging_uuid); | ||
10714 | schedule_transmit_on_queue (GNUNET_TIME_UNIT_ZERO, | ||
10715 | queue, | ||
10716 | GNUNET_SCHEDULER_PRIORITY_DEFAULT); | ||
10717 | return; | ||
10718 | } | ||
10719 | } | ||
10720 | else if (GNUNET_YES == sc.relb) | ||
10721 | { | ||
10722 | pm = reliability_box_message (queue, sc.dvh, pm); | ||
10723 | if (NULL == pm) | ||
10724 | { | ||
10725 | /* Reliability boxing failed, try next message... */ | ||
10726 | GNUNET_log ( | ||
10727 | GNUNET_ERROR_TYPE_DEBUG, | ||
10728 | "Reliability boxing failed queue %s to %s for <%" PRIu64 | ||
10729 | ">, trying again\n", | ||
10730 | queue->address, | ||
10731 | GNUNET_i2s (&n->pid), | ||
10732 | sc.best->logging_uuid); | ||
10733 | schedule_transmit_on_queue (GNUNET_TIME_UNIT_ZERO, | ||
10734 | queue, | ||
10735 | GNUNET_SCHEDULER_PRIORITY_DEFAULT); | ||
10736 | return; | ||
10737 | } | ||
10738 | } | ||
10739 | |||
10740 | /* Pass 'pm' for transission to the communicator */ | ||
10741 | GNUNET_log ( | ||
10742 | GNUNET_ERROR_TYPE_DEBUG, | ||
10743 | "Passing message <%" PRIu64 | ||
10744 | "> to queue %s for peer %s (considered %u others)\n", | ||
10745 | pm->logging_uuid, | ||
10746 | queue->address, | ||
10747 | GNUNET_i2s (&n->pid), | ||
10748 | sc.consideration_counter); | ||
10749 | |||
10750 | /* Flow control: increment amount of traffic sent; if we are routing | ||
10751 | via DV (and thus the ultimate target of the pending message is for | ||
10752 | a different virtual link than the one of the queue), then we need | ||
10753 | to use up not only the window of the direct link but also the | ||
10754 | flow control window for the DV link! */ | ||
10755 | pm->vl->outbound_fc_window_size_used += pm->bytes_msg; | ||
10756 | |||
10757 | if (pm->vl != queue->neighbour->vl) | ||
10758 | { | ||
10759 | /* If the virtual link of the queue differs, this better be distance | ||
10760 | vector routing! */ | ||
10761 | GNUNET_assert (NULL != sc.dvh); | ||
10762 | /* If we do distance vector routing, we better not do this for a | ||
10763 | message that was itself DV-routed */ | ||
10764 | GNUNET_assert (PMT_DV_BOX != sc.best->pmt); | ||
10765 | /* We use the size of the unboxed message here, to avoid counting | ||
10766 | the DV-Box header which is eaten up on the way by intermediaries */ | ||
10767 | queue->neighbour->vl->outbound_fc_window_size_used += sc.best->bytes_msg; | ||
10768 | } | ||
10769 | else | ||
10770 | { | ||
10771 | GNUNET_assert (NULL == sc.dvh); | ||
10772 | } | ||
10773 | |||
10774 | queue_send_msg (queue, pm, &pm[1], pm->bytes_msg); | ||
10775 | |||
10776 | /* Check if this transmission somehow conclusively finished handing 'pm' | ||
10777 | even without any explicit ACKs */ | ||
10778 | if ((PMT_CORE == pm->pmt) || | ||
10779 | (GNUNET_TRANSPORT_CC_RELIABLE == queue->tc->details.communicator.cc)) | ||
10780 | { | ||
10781 | completed_pending_message (pm); | ||
10782 | } | ||
10783 | else | ||
10784 | { | ||
10785 | struct GNUNET_TIME_Relative wait_duration; | ||
10786 | unsigned int wait_multiplier; | ||
10787 | |||
10788 | if (PMT_FRAGMENT_BOX == pm->pmt) | ||
10789 | { | ||
10790 | struct PendingMessage *root; | ||
10791 | |||
10792 | root = pm->frag_parent; | ||
10793 | while (NULL != root->frag_parent && PMT_DV_BOX != root->pmt) | ||
10794 | root = root->frag_parent; | ||
10795 | |||
10796 | wait_multiplier = (unsigned int) ceil ((double) root->bytes_msg | ||
10797 | / ((double) root->frag_off | ||
10798 | / (double) root->frag_count)) | ||
10799 | * 4; | ||
10800 | } | ||
10801 | else | ||
10802 | { | ||
10803 | // No fragments, we use 4 RTT before retransmitting. | ||
10804 | wait_multiplier = 4; | ||
10805 | } | ||
10806 | |||
10807 | // Depending on how much pending message the VirtualLink is queueing, we wait longer. | ||
10808 | // wait_multiplier = wait_multiplier * pm->vl->pending_msg_num; | ||
10809 | |||
10810 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10811 | "Wait multiplier %u\n", | ||
10812 | wait_multiplier); | ||
10813 | |||
10814 | /* Message not finished, waiting for acknowledgement. | ||
10815 | Update time by which we might retransmit 's' based on queue | ||
10816 | characteristics (i.e. RTT); it takes one RTT for the message to | ||
10817 | arrive and the ACK to come back in the best case; but the other | ||
10818 | side is allowed to delay ACKs by 2 RTTs, so we use 4 RTT before | ||
10819 | retransmitting. | ||
10820 | |||
10821 | OPTIMIZE: Note that in the future this heuristic should likely | ||
10822 | be improved further (measure RTT stability, consider message | ||
10823 | urgency and size when delaying ACKs, etc.) */ | ||
10824 | |||
10825 | if (GNUNET_TIME_UNIT_FOREVER_REL.rel_value_us != | ||
10826 | queue->pd.aged_rtt.rel_value_us) | ||
10827 | wait_duration = queue->pd.aged_rtt; | ||
10828 | else | ||
10829 | { | ||
10830 | wait_duration = DEFAULT_ACK_WAIT_DURATION; | ||
10831 | wait_multiplier = 4; | ||
10832 | } | ||
10833 | struct GNUNET_TIME_Absolute next = GNUNET_TIME_relative_to_absolute ( | ||
10834 | GNUNET_TIME_relative_multiply ( | ||
10835 | wait_duration, wait_multiplier)); | ||
10836 | struct GNUNET_TIME_Relative plus = GNUNET_TIME_relative_multiply ( | ||
10837 | wait_duration, wait_multiplier); | ||
10838 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10839 | "Waiting %s for ACK until %s\n", | ||
10840 | GNUNET_STRINGS_relative_time_to_string (plus, GNUNET_NO), | ||
10841 | GNUNET_STRINGS_absolute_time_to_string (next)); | ||
10842 | update_pm_next_attempt (pm, | ||
10843 | GNUNET_TIME_relative_to_absolute ( | ||
10844 | GNUNET_TIME_relative_multiply (wait_duration, | ||
10845 | wait_multiplier))); | ||
10846 | } | ||
10847 | /* finally, re-schedule queue transmission task itself */ | ||
10848 | schedule_transmit_on_queue (GNUNET_TIME_UNIT_ZERO, | ||
10849 | queue, | ||
10850 | GNUNET_SCHEDULER_PRIORITY_DEFAULT); | ||
10851 | } | ||
10852 | |||
10853 | |||
10854 | /** | ||
10855 | * Queue to a peer went down. Process the request. | ||
10856 | * | ||
10857 | * @param cls the client | ||
10858 | * @param dqm the send message that was sent | ||
10859 | */ | ||
10860 | static void | ||
10861 | handle_del_queue_message (void *cls, | ||
10862 | const struct GNUNET_TRANSPORT_DelQueueMessage *dqm) | ||
10863 | { | ||
10864 | struct TransportClient *tc = cls; | ||
10865 | |||
10866 | if (CT_COMMUNICATOR != tc->type) | ||
10867 | { | ||
10868 | GNUNET_break (0); | ||
10869 | GNUNET_SERVICE_client_drop (tc->client); | ||
10870 | return; | ||
10871 | } | ||
10872 | for (struct Queue *queue = tc->details.communicator.queue_head; NULL != queue; | ||
10873 | queue = queue->next_client) | ||
10874 | { | ||
10875 | struct Neighbour *neighbour = queue->neighbour; | ||
10876 | |||
10877 | if ((ntohl (dqm->qid) != queue->qid) || | ||
10878 | (0 != GNUNET_memcmp (&dqm->receiver, &neighbour->pid))) | ||
10879 | continue; | ||
10880 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10881 | "Dropped queue %s to peer %s\n", | ||
10882 | queue->address, | ||
10883 | GNUNET_i2s (&neighbour->pid)); | ||
10884 | free_queue (queue); | ||
10885 | GNUNET_SERVICE_client_continue (tc->client); | ||
10886 | return; | ||
10887 | } | ||
10888 | GNUNET_break (0); | ||
10889 | GNUNET_SERVICE_client_drop (tc->client); | ||
10890 | } | ||
10891 | |||
10892 | |||
10893 | static void | ||
10894 | free_queue_entry (struct QueueEntry *qe, | ||
10895 | struct TransportClient *tc) | ||
10896 | { | ||
10897 | struct PendingMessage *pm; | ||
10898 | |||
10899 | GNUNET_CONTAINER_DLL_remove (qe->queue->queue_head, | ||
10900 | qe->queue->queue_tail, | ||
10901 | qe); | ||
10902 | qe->queue->queue_length--; | ||
10903 | tc->details.communicator.total_queue_length--; | ||
10904 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10905 | "Received ACK on queue %s (QID %u) to peer %s (new length: %u/%u)\n", | ||
10906 | qe->queue->address, | ||
10907 | qe->queue->qid, | ||
10908 | GNUNET_i2s (&qe->queue->neighbour->pid), | ||
10909 | qe->queue->queue_length, | ||
10910 | tc->details.communicator.total_queue_length); | ||
10911 | |||
10912 | /* if applicable, resume transmissions that waited on ACK */ | ||
10913 | if (COMMUNICATOR_TOTAL_QUEUE_LIMIT - 1 == | ||
10914 | tc->details.communicator.total_queue_length) | ||
10915 | { | ||
10916 | /* Communicator dropped below threshold, resume all queues | ||
10917 | incident with this client! */ | ||
10918 | GNUNET_STATISTICS_update ( | ||
10919 | GST_stats, | ||
10920 | "# Transmission throttled due to communicator queue limit", | ||
10921 | -1, | ||
10922 | GNUNET_NO); | ||
10923 | for (struct Queue *queue = tc->details.communicator.queue_head; | ||
10924 | NULL != queue; | ||
10925 | queue = queue->next_client) | ||
10926 | { | ||
10927 | schedule_transmit_on_queue (GNUNET_TIME_UNIT_ZERO, | ||
10928 | queue, | ||
10929 | GNUNET_SCHEDULER_PRIORITY_DEFAULT); | ||
10930 | } | ||
10931 | } | ||
10932 | else if (QUEUE_LENGTH_LIMIT - 1 == qe->queue->queue_length) | ||
10933 | { | ||
10934 | /* queue dropped below threshold; only resume this one queue */ | ||
10935 | GNUNET_STATISTICS_update (GST_stats, | ||
10936 | "# Transmission throttled due to queue queue limit", | ||
10937 | -1, | ||
10938 | GNUNET_NO); | ||
10939 | schedule_transmit_on_queue (GNUNET_TIME_UNIT_ZERO, | ||
10940 | qe->queue, | ||
10941 | GNUNET_SCHEDULER_PRIORITY_DEFAULT); | ||
10942 | } | ||
10943 | else if (1 == qe->queue->q_capacity) | ||
10944 | { | ||
10945 | // TODO I guess this will never happen, because the communicator triggers this by updating its queue length itself. | ||
10946 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
10947 | "Transmission rescheduled due to communicator message queue with qid %u has capacity %" | ||
10948 | PRIu64 ".\n", | ||
10949 | qe->queue->qid, | ||
10950 | qe->queue->q_capacity); | ||
10951 | /* message queue has capacity; only resume this one queue */ | ||
10952 | /* queue dropped below threshold; only resume this one queue */ | ||
10953 | GNUNET_STATISTICS_update (GST_stats, | ||
10954 | "# Transmission throttled due to message queue capacity", | ||
10955 | -1, | ||
10956 | GNUNET_NO); | ||
10957 | schedule_transmit_on_queue (GNUNET_TIME_UNIT_ZERO, | ||
10958 | qe->queue, | ||
10959 | GNUNET_SCHEDULER_PRIORITY_DEFAULT); | ||
10960 | } | ||
10961 | |||
10962 | if (NULL != (pm = qe->pm)) | ||
10963 | { | ||
10964 | struct VirtualLink *vl; | ||
10965 | |||
10966 | // GNUNET_assert (qe == pm->qe); | ||
10967 | pm->qe = NULL; | ||
10968 | /* If waiting for this communicator may have blocked transmission | ||
10969 | of pm on other queues for this neighbour, force schedule | ||
10970 | transmit on queue for queues of the neighbour */ | ||
10971 | if (NULL == pm->frag_parent) | ||
10972 | { | ||
10973 | vl = pm->vl; | ||
10974 | if ((NULL != vl) && | ||
10975 | (NULL != vl->pending_msg_head) && | ||
10976 | (vl->pending_msg_head == pm)) | ||
10977 | check_vl_transmission (vl); | ||
10978 | } | ||
10979 | } | ||
10980 | GNUNET_free (qe); | ||
10981 | } | ||
10982 | |||
10983 | |||
10984 | /** | ||
10985 | * Message was transmitted. Process the request. | ||
10986 | * | ||
10987 | * @param cls the client | ||
10988 | * @param sma the send message that was sent | ||
10989 | */ | ||
10990 | static void | ||
10991 | handle_send_message_ack (void *cls, | ||
10992 | const struct GNUNET_TRANSPORT_SendMessageToAck *sma) | ||
10993 | { | ||
10994 | struct TransportClient *tc = cls; | ||
10995 | struct QueueEntry *qe; | ||
10996 | |||
10997 | if (CT_COMMUNICATOR != tc->type) | ||
10998 | { | ||
10999 | GNUNET_break (0); | ||
11000 | GNUNET_SERVICE_client_drop (tc->client); | ||
11001 | return; | ||
11002 | } | ||
11003 | |||
11004 | /* find our queue entry matching the ACK */ | ||
11005 | qe = NULL; | ||
11006 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11007 | "Looking for queue for PID %s\n", | ||
11008 | GNUNET_i2s (&sma->receiver)); | ||
11009 | for (struct Queue *queue = tc->details.communicator.queue_head; NULL != queue; | ||
11010 | queue = queue->next_client) | ||
11011 | { | ||
11012 | if (0 != GNUNET_memcmp (&queue->neighbour->pid, &sma->receiver)) | ||
11013 | continue; | ||
11014 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11015 | "Found PID %s\n", | ||
11016 | GNUNET_i2s (&queue->neighbour->pid)); | ||
11017 | |||
11018 | |||
11019 | for (struct QueueEntry *qep = queue->queue_head; NULL != qep; | ||
11020 | qep = qep->next) | ||
11021 | { | ||
11022 | if (qep->mid != GNUNET_ntohll (sma->mid) || queue->qid != ntohl ( | ||
11023 | sma->qid)) | ||
11024 | continue; | ||
11025 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11026 | "QueueEntry MID: %" PRIu64 " on queue QID: %u, Ack MID: %" | ||
11027 | PRIu64 " Ack QID %u\n", | ||
11028 | qep->mid, | ||
11029 | queue->qid, | ||
11030 | GNUNET_ntohll (sma->mid), | ||
11031 | ntohl (sma->qid)); | ||
11032 | qe = qep; | ||
11033 | if ((NULL != qe->pm) && (qe->pm->qe != qe)) | ||
11034 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11035 | "For pending message %" PRIu64 " we had retransmissions.\n", | ||
11036 | qe->pm->logging_uuid); | ||
11037 | break; | ||
11038 | } | ||
11039 | } | ||
11040 | if (NULL == qe) | ||
11041 | { | ||
11042 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11043 | "No QueueEntry found for Ack MID %" PRIu64 " QID: %u\n", | ||
11044 | GNUNET_ntohll (sma->mid), | ||
11045 | ntohl (sma->qid)); | ||
11046 | // TODO I guess this can happen, if the Ack from the peer comes before the Ack from the queue. | ||
11047 | // Update: Maybe QueueEntry was accidentally freed during freeing PendingMessage. | ||
11048 | /* this should never happen */ | ||
11049 | // GNUNET_break (0); | ||
11050 | // GNUNET_SERVICE_client_drop (tc->client); | ||
11051 | GNUNET_SERVICE_client_continue (tc->client); | ||
11052 | return; | ||
11053 | } | ||
11054 | free_queue_entry (qe, tc); | ||
11055 | GNUNET_SERVICE_client_continue (tc->client); | ||
11056 | } | ||
11057 | |||
11058 | |||
11059 | /** | ||
11060 | * Iterator telling new MONITOR client about all existing | ||
11061 | * queues to peers. | ||
11062 | * | ||
11063 | * @param cls the new `struct TransportClient` | ||
11064 | * @param pid a connected peer | ||
11065 | * @param value the `struct Neighbour` with more information | ||
11066 | * @return #GNUNET_OK (continue to iterate) | ||
11067 | */ | ||
11068 | static int | ||
11069 | notify_client_queues (void *cls, | ||
11070 | const struct GNUNET_PeerIdentity *pid, | ||
11071 | void *value) | ||
11072 | { | ||
11073 | struct TransportClient *tc = cls; | ||
11074 | struct Neighbour *neighbour = value; | ||
11075 | |||
11076 | GNUNET_assert (CT_MONITOR == tc->type); | ||
11077 | for (struct Queue *q = neighbour->queue_head; NULL != q; | ||
11078 | q = q->next_neighbour) | ||
11079 | { | ||
11080 | struct MonitorEvent me = { .rtt = q->pd.aged_rtt, | ||
11081 | .cs = q->cs, | ||
11082 | .num_msg_pending = q->num_msg_pending, | ||
11083 | .num_bytes_pending = q->num_bytes_pending }; | ||
11084 | |||
11085 | notify_monitor (tc, pid, q->address, q->nt, &me); | ||
11086 | } | ||
11087 | return GNUNET_OK; | ||
11088 | } | ||
11089 | |||
11090 | |||
11091 | /** | ||
11092 | * Initialize a monitor client. | ||
11093 | * | ||
11094 | * @param cls the client | ||
11095 | * @param start the start message that was sent | ||
11096 | */ | ||
11097 | static void | ||
11098 | handle_monitor_start (void *cls, | ||
11099 | const struct GNUNET_TRANSPORT_MonitorStart *start) | ||
11100 | { | ||
11101 | struct TransportClient *tc = cls; | ||
11102 | |||
11103 | if (CT_NONE != tc->type) | ||
11104 | { | ||
11105 | GNUNET_break (0); | ||
11106 | GNUNET_SERVICE_client_drop (tc->client); | ||
11107 | return; | ||
11108 | } | ||
11109 | tc->type = CT_MONITOR; | ||
11110 | tc->details.monitor.peer = start->peer; | ||
11111 | tc->details.monitor.one_shot = ntohl (start->one_shot); | ||
11112 | GNUNET_CONTAINER_multipeermap_iterate (neighbours, ¬ify_client_queues, tc); | ||
11113 | GNUNET_SERVICE_client_mark_monitor (tc->client); | ||
11114 | GNUNET_SERVICE_client_continue (tc->client); | ||
11115 | } | ||
11116 | |||
11117 | |||
11118 | /** | ||
11119 | * Find transport client providing communication service | ||
11120 | * for the protocol @a prefix. | ||
11121 | * | ||
11122 | * @param prefix communicator name | ||
11123 | * @return NULL if no such transport client is available | ||
11124 | */ | ||
11125 | static struct TransportClient * | ||
11126 | lookup_communicator (const char *prefix) | ||
11127 | { | ||
11128 | for (struct TransportClient *tc = clients_head; NULL != tc; tc = tc->next) | ||
11129 | { | ||
11130 | if (CT_COMMUNICATOR != tc->type) | ||
11131 | continue; | ||
11132 | if (0 == strcmp (prefix, tc->details.communicator.address_prefix)) | ||
11133 | return tc; | ||
11134 | } | ||
11135 | GNUNET_log ( | ||
11136 | GNUNET_ERROR_TYPE_WARNING, | ||
11137 | "Somone suggested use of communicator for `%s', but we do not have such a communicator!\n", | ||
11138 | prefix); | ||
11139 | return NULL; | ||
11140 | } | ||
11141 | |||
11142 | |||
11143 | /** | ||
11144 | * Signature of a function called with a communicator @a address of a peer | ||
11145 | * @a pid that an application wants us to connect to. | ||
11146 | * | ||
11147 | * @param pid target peer | ||
11148 | * @param address the address to try | ||
11149 | */ | ||
11150 | static void | ||
11151 | suggest_to_connect (const struct GNUNET_PeerIdentity *pid, const char *address) | ||
11152 | { | ||
11153 | static uint32_t idgen; | ||
11154 | struct TransportClient *tc; | ||
11155 | char *prefix; | ||
11156 | struct GNUNET_TRANSPORT_CreateQueue *cqm; | ||
11157 | struct GNUNET_MQ_Envelope *env; | ||
11158 | size_t alen; | ||
11159 | |||
11160 | prefix = GNUNET_HELLO_address_to_prefix (address); | ||
11161 | if (NULL == prefix) | ||
11162 | { | ||
11163 | GNUNET_break (0); /* We got an invalid address!? */ | ||
11164 | return; | ||
11165 | } | ||
11166 | tc = lookup_communicator (prefix); | ||
11167 | if (NULL == tc) | ||
11168 | { | ||
11169 | GNUNET_STATISTICS_update (GST_stats, | ||
11170 | "# Suggestions ignored due to missing communicator", | ||
11171 | 1, | ||
11172 | GNUNET_NO); | ||
11173 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
11174 | "Cannot connect to %s at `%s', no matching communicator present\n", | ||
11175 | GNUNET_i2s (pid), | ||
11176 | address); | ||
11177 | GNUNET_free (prefix); | ||
11178 | return; | ||
11179 | } | ||
11180 | /* forward suggestion for queue creation to communicator */ | ||
11181 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11182 | "Request #%u for `%s' communicator to create queue to `%s' at `%s'\n", | ||
11183 | (unsigned int) idgen, | ||
11184 | prefix, | ||
11185 | GNUNET_i2s (pid), | ||
11186 | address); | ||
11187 | GNUNET_free (prefix); | ||
11188 | alen = strlen (address) + 1; | ||
11189 | env = | ||
11190 | GNUNET_MQ_msg_extra (cqm, alen, GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE); | ||
11191 | cqm->request_id = htonl (idgen++); | ||
11192 | cqm->receiver = *pid; | ||
11193 | memcpy (&cqm[1], address, alen); | ||
11194 | GNUNET_MQ_send (tc->mq, env); | ||
11195 | } | ||
11196 | |||
11197 | |||
11198 | /** | ||
11199 | * The queue @a q (which matches the peer and address in @a vs) is | ||
11200 | * ready for queueing. We should now queue the validation request. | ||
11201 | * | ||
11202 | * @param q queue to send on | ||
11203 | * @param vs state to derive validation challenge from | ||
11204 | */ | ||
11205 | static void | ||
11206 | validation_transmit_on_queue (struct Queue *q, struct ValidationState *vs) | ||
11207 | { | ||
11208 | struct TransportValidationChallengeMessage tvc; | ||
11209 | struct GNUNET_TIME_Absolute monotonic_time; | ||
11210 | |||
11211 | if (NULL != vs->revalidation_task) | ||
11212 | { | ||
11213 | GNUNET_SCHEDULER_cancel (vs->revalidation_task); | ||
11214 | vs->revalidation_task = NULL; | ||
11215 | } | ||
11216 | /*memcpy (&hkey, | ||
11217 | &hc, | ||
11218 | sizeof (hkey));*/ | ||
11219 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11220 | "Remove key %s for address %s map size %u contains %u\n", | ||
11221 | GNUNET_h2s (&vs->hc), | ||
11222 | vs->address, | ||
11223 | GNUNET_CONTAINER_multihashmap_size (revalidation_map), | ||
11224 | GNUNET_CONTAINER_multihashmap_contains (revalidation_map, | ||
11225 | &vs->hc)); | ||
11226 | GNUNET_CONTAINER_multihashmap_remove (revalidation_map, &vs->hc, vs); | ||
11227 | |||
11228 | monotonic_time = GNUNET_TIME_absolute_get_monotonic (GST_cfg); | ||
11229 | if (GNUNET_TIME_UNIT_ZERO_ABS.abs_value_us == | ||
11230 | vs->last_challenge_use.abs_value_us) | ||
11231 | { | ||
11232 | vs->first_challenge_use = monotonic_time; | ||
11233 | } | ||
11234 | vs->last_challenge_use = monotonic_time; | ||
11235 | tvc.header.type = | ||
11236 | htons (GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_VALIDATION_CHALLENGE); | ||
11237 | tvc.header.size = htons (sizeof(tvc)); | ||
11238 | tvc.reserved = htonl (0); | ||
11239 | tvc.challenge = vs->challenge; | ||
11240 | tvc.sender_time = GNUNET_TIME_absolute_hton (vs->last_challenge_use); | ||
11241 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
11242 | "Sending address validation challenge %s to %s\n", | ||
11243 | GNUNET_sh2s (&tvc.challenge.value), | ||
11244 | GNUNET_i2s (&q->neighbour->pid)); | ||
11245 | queue_send_msg (q, NULL, &tvc, sizeof(tvc)); | ||
11246 | } | ||
11247 | |||
11248 | |||
11249 | /** | ||
11250 | * Task run periodically to validate some address based on #validation_heap. | ||
11251 | * | ||
11252 | * @param cls NULL | ||
11253 | */ | ||
11254 | static void | ||
11255 | validation_start_cb (void *cls) | ||
11256 | { | ||
11257 | struct ValidationState *vs; | ||
11258 | struct Queue *q; | ||
11259 | const struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get_monotonic ( | ||
11260 | GST_cfg); | ||
11261 | |||
11262 | (void) cls; | ||
11263 | validation_task = NULL; | ||
11264 | vs = GNUNET_CONTAINER_heap_peek (validation_heap); | ||
11265 | /* drop validations past their expiration */ | ||
11266 | while ( | ||
11267 | (NULL != vs) && | ||
11268 | (0 == GNUNET_TIME_absolute_get_remaining (vs->valid_until).rel_value_us)) | ||
11269 | { | ||
11270 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11271 | "Validation response %s cleaned up\n", | ||
11272 | GNUNET_sh2s (&vs->challenge.value)); | ||
11273 | free_validation_state (vs); | ||
11274 | vs = GNUNET_CONTAINER_heap_peek (validation_heap); | ||
11275 | } | ||
11276 | if (NULL == vs) | ||
11277 | { | ||
11278 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
11279 | "Address validation task not scheduled anymore, nothing to do\n"); | ||
11280 | return; /* woopsie, no more addresses known, should only | ||
11281 | happen if we're really a lonely peer */ | ||
11282 | } | ||
11283 | q = find_queue (&vs->pid, vs->address); | ||
11284 | if (GNUNET_TIME_absolute_cmp (vs->first_challenge_use, >, now)) | ||
11285 | { | ||
11286 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11287 | "To early to start next address validation for challenge %s\n", | ||
11288 | GNUNET_sh2s (&vs->challenge.value)); | ||
11289 | return; | ||
11290 | } | ||
11291 | if (NULL == q) | ||
11292 | { | ||
11293 | vs->awaiting_queue = GNUNET_YES; | ||
11294 | suggest_to_connect (&vs->pid, vs->address); | ||
11295 | } | ||
11296 | else | ||
11297 | validation_transmit_on_queue (q, vs); | ||
11298 | /* Finally, reschedule next attempt */ | ||
11299 | vs->challenge_backoff = | ||
11300 | GNUNET_TIME_randomized_backoff (vs->challenge_backoff, | ||
11301 | MAX_VALIDATION_CHALLENGE_FREQ); | ||
11302 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11303 | "Address validation task will run again in %s\n", | ||
11304 | GNUNET_STRINGS_relative_time_to_string (vs->challenge_backoff, | ||
11305 | GNUNET_YES)); | ||
11306 | update_next_challenge_time (vs, | ||
11307 | GNUNET_TIME_relative_to_absolute ( | ||
11308 | vs->challenge_backoff)); | ||
11309 | } | ||
11310 | |||
11311 | |||
11312 | /** | ||
11313 | * Closure for #check_connection_quality. | ||
11314 | */ | ||
11315 | struct QueueQualityContext | ||
11316 | { | ||
11317 | /** | ||
11318 | * Set to the @e k'th queue encountered. | ||
11319 | */ | ||
11320 | struct Queue *q; | ||
11321 | |||
11322 | /** | ||
11323 | * Set to the number of quality queues encountered. | ||
11324 | */ | ||
11325 | unsigned int quality_count; | ||
11326 | |||
11327 | /** | ||
11328 | * Set to the total number of queues encountered. | ||
11329 | */ | ||
11330 | unsigned int num_queues; | ||
11331 | |||
11332 | /** | ||
11333 | * Decremented for each queue, for selection of the | ||
11334 | * k-th queue in @e q. | ||
11335 | */ | ||
11336 | unsigned int k; | ||
11337 | }; | ||
11338 | |||
11339 | |||
11340 | /** | ||
11341 | * Check whether any queue to the given neighbour is | ||
11342 | * of a good "quality" and if so, increment the counter. | ||
11343 | * Also counts the total number of queues, and returns | ||
11344 | * the k-th queue found. | ||
11345 | * | ||
11346 | * @param cls a `struct QueueQualityContext *` with counters | ||
11347 | * @param pid peer this is about | ||
11348 | * @param value a `struct Neighbour` | ||
11349 | * @return #GNUNET_OK (continue to iterate) | ||
11350 | */ | ||
11351 | static int | ||
11352 | check_connection_quality (void *cls, | ||
11353 | const struct GNUNET_PeerIdentity *pid, | ||
11354 | void *value) | ||
11355 | { | ||
11356 | struct QueueQualityContext *ctx = cls; | ||
11357 | struct Neighbour *n = value; | ||
11358 | int do_inc; | ||
11359 | |||
11360 | (void) pid; | ||
11361 | do_inc = GNUNET_NO; | ||
11362 | for (struct Queue *q = n->queue_head; NULL != q; q = q->next_neighbour) | ||
11363 | { | ||
11364 | ctx->num_queues++; | ||
11365 | if (0 == ctx->k--) | ||
11366 | ctx->q = q; | ||
11367 | /* FIXME-CONQ-STATISTICS: in the future, add reliability / goodput | ||
11368 | statistics and consider those as well here? */ | ||
11369 | if (q->pd.aged_rtt.rel_value_us < DV_QUALITY_RTT_THRESHOLD.rel_value_us) | ||
11370 | do_inc = GNUNET_YES; | ||
11371 | } | ||
11372 | if (GNUNET_YES == do_inc) | ||
11373 | ctx->quality_count++; | ||
11374 | return GNUNET_OK; | ||
11375 | } | ||
11376 | |||
11377 | |||
11378 | /** | ||
11379 | * Task run when we CONSIDER initiating a DV learn | ||
11380 | * process. We first check that sending out a message is | ||
11381 | * even possible (queues exist), then that it is desirable | ||
11382 | * (if not, reschedule the task for later), and finally | ||
11383 | * we may then begin the job. If there are too many | ||
11384 | * entries in the #dvlearn_map, we purge the oldest entry | ||
11385 | * using #lle_tail. | ||
11386 | * | ||
11387 | * @param cls NULL | ||
11388 | */ | ||
11389 | static void | ||
11390 | start_dv_learn (void *cls) | ||
11391 | { | ||
11392 | struct LearnLaunchEntry *lle; | ||
11393 | struct QueueQualityContext qqc; | ||
11394 | struct TransportDVLearnMessage dvl; | ||
11395 | |||
11396 | (void) cls; | ||
11397 | dvlearn_task = NULL; | ||
11398 | if (0 == GNUNET_CONTAINER_multipeermap_size (neighbours)) | ||
11399 | return; /* lost all connectivity, cannot do learning */ | ||
11400 | qqc.quality_count = 0; | ||
11401 | qqc.num_queues = 0; | ||
11402 | qqc.k = GNUNET_CONTAINER_multipeermap_size (neighbours); | ||
11403 | GNUNET_CONTAINER_multipeermap_iterate (neighbours, | ||
11404 | &check_connection_quality, | ||
11405 | &qqc); | ||
11406 | if (qqc.quality_count > DV_LEARN_QUALITY_THRESHOLD) | ||
11407 | { | ||
11408 | struct GNUNET_TIME_Relative delay; | ||
11409 | unsigned int factor; | ||
11410 | |||
11411 | /* scale our retries by how far we are above the threshold */ | ||
11412 | factor = qqc.quality_count / DV_LEARN_QUALITY_THRESHOLD; | ||
11413 | delay = GNUNET_TIME_relative_multiply (DV_LEARN_BASE_FREQUENCY, factor); | ||
11414 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11415 | "At connection quality %u, will launch DV learn in %s\n", | ||
11416 | qqc.quality_count, | ||
11417 | GNUNET_STRINGS_relative_time_to_string (delay, GNUNET_YES)); | ||
11418 | dvlearn_task = GNUNET_SCHEDULER_add_delayed (delay, &start_dv_learn, NULL); | ||
11419 | return; | ||
11420 | } | ||
11421 | /* remove old entries in #dvlearn_map if it has grown too big */ | ||
11422 | while (MAX_DV_LEARN_PENDING <= | ||
11423 | GNUNET_CONTAINER_multishortmap_size (dvlearn_map)) | ||
11424 | { | ||
11425 | lle = lle_tail; | ||
11426 | GNUNET_assert (GNUNET_YES == | ||
11427 | GNUNET_CONTAINER_multishortmap_remove (dvlearn_map, | ||
11428 | &lle->challenge.value, | ||
11429 | lle)); | ||
11430 | GNUNET_CONTAINER_DLL_remove (lle_head, lle_tail, lle); | ||
11431 | GNUNET_free (lle); | ||
11432 | } | ||
11433 | /* setup data structure for learning */ | ||
11434 | lle = GNUNET_new (struct LearnLaunchEntry); | ||
11435 | GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_NONCE, | ||
11436 | &lle->challenge, | ||
11437 | sizeof(lle->challenge)); | ||
11438 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11439 | "Starting launch DV learn with challenge %s\n", | ||
11440 | GNUNET_sh2s (&lle->challenge.value)); | ||
11441 | GNUNET_CONTAINER_DLL_insert (lle_head, lle_tail, lle); | ||
11442 | GNUNET_break (GNUNET_YES == | ||
11443 | GNUNET_CONTAINER_multishortmap_put ( | ||
11444 | dvlearn_map, | ||
11445 | &lle->challenge.value, | ||
11446 | lle, | ||
11447 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)); | ||
11448 | dvl.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_DV_LEARN); | ||
11449 | dvl.header.size = htons (sizeof(dvl)); | ||
11450 | dvl.num_hops = htons (0); | ||
11451 | dvl.bidirectional = htons (0); | ||
11452 | dvl.non_network_delay = GNUNET_TIME_relative_hton (GNUNET_TIME_UNIT_ZERO); | ||
11453 | dvl.monotonic_time = | ||
11454 | GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get_monotonic (GST_cfg)); | ||
11455 | { | ||
11456 | struct DvInitPS dvip = { | ||
11457 | .purpose.purpose = htonl ( | ||
11458 | GNUNET_SIGNATURE_PURPOSE_TRANSPORT_DV_INITIATOR), | ||
11459 | .purpose.size = htonl (sizeof(dvip)), | ||
11460 | .monotonic_time = dvl.monotonic_time, | ||
11461 | .challenge = lle->challenge | ||
11462 | }; | ||
11463 | |||
11464 | GNUNET_CRYPTO_eddsa_sign (GST_my_private_key, | ||
11465 | &dvip, | ||
11466 | &dvl.init_sig); | ||
11467 | } | ||
11468 | dvl.initiator = GST_my_identity; | ||
11469 | dvl.challenge = lle->challenge; | ||
11470 | |||
11471 | qqc.quality_count = 0; | ||
11472 | qqc.k = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, qqc.num_queues); | ||
11473 | qqc.num_queues = 0; | ||
11474 | qqc.q = NULL; | ||
11475 | GNUNET_CONTAINER_multipeermap_iterate (neighbours, | ||
11476 | &check_connection_quality, | ||
11477 | &qqc); | ||
11478 | GNUNET_assert (NULL != qqc.q); | ||
11479 | |||
11480 | /* Do this as close to transmission time as possible! */ | ||
11481 | lle->launch_time = GNUNET_TIME_absolute_get (); | ||
11482 | |||
11483 | queue_send_msg (qqc.q, NULL, &dvl, sizeof(dvl)); | ||
11484 | /* reschedule this job, randomizing the time it runs (but no | ||
11485 | actual backoff!) */ | ||
11486 | dvlearn_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_randomize ( | ||
11487 | DV_LEARN_BASE_FREQUENCY), | ||
11488 | &start_dv_learn, | ||
11489 | NULL); | ||
11490 | } | ||
11491 | |||
11492 | |||
11493 | /** | ||
11494 | * Get the IP address without the port number. | ||
11495 | * | ||
11496 | * @param address The string contains a communicator prefix, IP address and port | ||
11497 | * like this 'tcp-92.68.150.1:55452'. | ||
11498 | * @return String with IP address only. | ||
11499 | */ | ||
11500 | static char * | ||
11501 | get_address_without_port (const char *address) | ||
11502 | { | ||
11503 | const char *colon; | ||
11504 | char *colon_rest; | ||
11505 | size_t colon_rest_length; | ||
11506 | char *address_without_port; | ||
11507 | |||
11508 | colon = strchr (address,':'); | ||
11509 | colon_rest = GNUNET_strndup (address, colon - address); | ||
11510 | colon_rest_length = strlen (colon_rest); | ||
11511 | address_without_port = GNUNET_strndup (&colon_rest[4], colon_rest_length - 4); | ||
11512 | GNUNET_free (colon_rest); | ||
11513 | |||
11514 | return address_without_port; | ||
11515 | } | ||
11516 | |||
11517 | |||
11518 | /** | ||
11519 | * A new queue has been created, check if any address validation | ||
11520 | * requests have been waiting for it. | ||
11521 | * | ||
11522 | * @param cls a `struct Queue` | ||
11523 | * @param pid peer concerned (unused) | ||
11524 | * @param value a `struct ValidationState` | ||
11525 | * @return #GNUNET_NO if a match was found and we can stop looking | ||
11526 | */ | ||
11527 | static int | ||
11528 | check_validation_request_pending (void *cls, | ||
11529 | const struct GNUNET_PeerIdentity *pid, | ||
11530 | void *value) | ||
11531 | { | ||
11532 | struct Queue *q = cls; | ||
11533 | struct ValidationState *vs = value; | ||
11534 | char *address_without_port_vs; | ||
11535 | char *address_without_port_q; | ||
11536 | int success = GNUNET_YES; | ||
11537 | |||
11538 | //TODO Check if this is really necessary. | ||
11539 | address_without_port_vs = get_address_without_port (vs->address); | ||
11540 | address_without_port_q = get_address_without_port (q->address); | ||
11541 | |||
11542 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11543 | "Check validation request pending for `%s' at `%s'/`%s' (vs)/(q)\n", | ||
11544 | GNUNET_i2s (pid), | ||
11545 | address_without_port_vs, | ||
11546 | address_without_port_q); | ||
11547 | (void) pid; | ||
11548 | if ((GNUNET_YES == vs->awaiting_queue) && | ||
11549 | (0 == strcmp (address_without_port_vs, address_without_port_q))) | ||
11550 | { | ||
11551 | |||
11552 | vs->awaiting_queue = GNUNET_NO; | ||
11553 | validation_transmit_on_queue (q, vs); | ||
11554 | success = GNUNET_NO; | ||
11555 | } | ||
11556 | |||
11557 | GNUNET_free (address_without_port_vs); | ||
11558 | GNUNET_free (address_without_port_q); | ||
11559 | return success; | ||
11560 | } | ||
11561 | |||
11562 | |||
11563 | /** | ||
11564 | * Function called with the monotonic time of a DV initiator | ||
11565 | * by PEERSTORE. Updates the time. | ||
11566 | * | ||
11567 | * @param cls a `struct Neighbour` | ||
11568 | * @param record the information found, NULL for the last call | ||
11569 | * @param emsg error message | ||
11570 | */ | ||
11571 | static void | ||
11572 | neighbour_dv_monotime_cb (void *cls, | ||
11573 | const struct GNUNET_PEERSTORE_Record *record, | ||
11574 | const char *emsg) | ||
11575 | { | ||
11576 | struct Neighbour *n = cls; | ||
11577 | struct GNUNET_TIME_AbsoluteNBO *mtbe; | ||
11578 | |||
11579 | (void) emsg; | ||
11580 | if (NULL == record) | ||
11581 | { | ||
11582 | /* we're done with #neighbour_dv_monotime_cb() invocations, | ||
11583 | continue normal processing */ | ||
11584 | n->get = NULL; | ||
11585 | n->dv_monotime_available = GNUNET_YES; | ||
11586 | return; | ||
11587 | } | ||
11588 | if (0 == record->value_size) | ||
11589 | { | ||
11590 | GNUNET_PEERSTORE_iteration_next (n->get, 1); | ||
11591 | GNUNET_break (0); | ||
11592 | return; | ||
11593 | } | ||
11594 | mtbe = record->value; | ||
11595 | n->last_dv_learn_monotime = | ||
11596 | GNUNET_TIME_absolute_max (n->last_dv_learn_monotime, | ||
11597 | GNUNET_TIME_absolute_ntoh (*mtbe)); | ||
11598 | GNUNET_PEERSTORE_iteration_next (n->get, 1); | ||
11599 | } | ||
11600 | |||
11601 | |||
11602 | static void | ||
11603 | iterate_address_and_compare_cb (void *cls, | ||
11604 | const struct GNUNET_PeerIdentity *pid, | ||
11605 | const char *uri) | ||
11606 | { | ||
11607 | struct Queue *queue = cls; | ||
11608 | const char *slash; | ||
11609 | char *address_uri; | ||
11610 | char *prefix; | ||
11611 | char *uri_without_port; | ||
11612 | char *address_uri_without_port; | ||
11613 | |||
11614 | slash = strrchr (uri, '/'); | ||
11615 | prefix = GNUNET_strndup (uri, (slash - uri) - 2); | ||
11616 | GNUNET_assert (NULL != slash); | ||
11617 | slash++; | ||
11618 | GNUNET_asprintf (&address_uri, | ||
11619 | "%s-%s", | ||
11620 | prefix, | ||
11621 | slash); | ||
11622 | |||
11623 | address_uri_without_port = get_address_without_port (queue->address); | ||
11624 | uri_without_port = get_address_without_port (address_uri); | ||
11625 | if (0 == strcmp (uri_without_port, address_uri_without_port)) | ||
11626 | { | ||
11627 | queue->is_global_natted = GNUNET_NO; | ||
11628 | } | ||
11629 | |||
11630 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11631 | "not global natted %u %s %s %s %s %s %u\n", | ||
11632 | queue->is_global_natted, | ||
11633 | uri, | ||
11634 | queue->address, | ||
11635 | uri_without_port, | ||
11636 | address_uri_without_port, | ||
11637 | prefix, | ||
11638 | GNUNET_NO); | ||
11639 | GNUNET_free (prefix); | ||
11640 | GNUNET_free (address_uri); | ||
11641 | GNUNET_free (address_uri_without_port); | ||
11642 | GNUNET_free (uri_without_port); | ||
11643 | } | ||
11644 | |||
11645 | |||
11646 | static void | ||
11647 | check_for_global_natted_error_cb (void *cls) | ||
11648 | { | ||
11649 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
11650 | "Error in PEERSTORE monitoring for checking global natted\n"); | ||
11651 | } | ||
11652 | |||
11653 | |||
11654 | static void | ||
11655 | check_for_global_natted_sync_cb (void *cls) | ||
11656 | { | ||
11657 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
11658 | "Done with initial PEERSTORE iteration during monitoring for checking global natted\n"); | ||
11659 | } | ||
11660 | |||
11661 | |||
11662 | struct TransportGlobalNattedAddressClosure | ||
11663 | { | ||
11664 | /** | ||
11665 | * The address to search for. | ||
11666 | */ | ||
11667 | char *addr; | ||
11668 | |||
11669 | /** | ||
11670 | * The struct TransportGlobalNattedAddress to set. | ||
11671 | */ | ||
11672 | struct TransportGlobalNattedAddress *tgna; | ||
11673 | }; | ||
11674 | |||
11675 | |||
11676 | static enum GNUNET_GenericReturnValue | ||
11677 | contains_address (void *cls, | ||
11678 | const struct GNUNET_PeerIdentity *pid, | ||
11679 | void *value) | ||
11680 | { | ||
11681 | struct TransportGlobalNattedAddressClosure *tgna_cls = cls; | ||
11682 | struct TransportGlobalNattedAddress *tgna = value; | ||
11683 | char *addr = (char *) &tgna[1]; | ||
11684 | |||
11685 | if (strlen(tgna_cls->addr) == ntohl (tgna->address_length) | ||
11686 | && 0 == strncmp (addr, tgna_cls->addr, ntohl (tgna->address_length))) | ||
11687 | { | ||
11688 | tgna_cls->tgna = tgna; | ||
11689 | return GNUNET_NO; | ||
11690 | } | ||
11691 | return GNUNET_YES; | ||
11692 | } | ||
11693 | |||
11694 | |||
11695 | static void | ||
11696 | check_for_global_natted (void *cls, | ||
11697 | const struct GNUNET_PEERSTORE_Record *record, | ||
11698 | const char *emsg) | ||
11699 | { | ||
11700 | struct Queue *queue = cls; | ||
11701 | struct Neighbour *neighbour = queue->neighbour; | ||
11702 | struct GNUNET_HELLO_Builder *builder; | ||
11703 | struct GNUNET_MessageHeader *hello; | ||
11704 | struct TransportGlobalNattedAddressClosure tgna_cls; | ||
11705 | size_t address_len_without_port; | ||
11706 | |||
11707 | if (NULL != emsg) | ||
11708 | { | ||
11709 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
11710 | "Got failure from PEERSTORE: %s\n", | ||
11711 | emsg); | ||
11712 | return; | ||
11713 | } | ||
11714 | if (NULL == record) | ||
11715 | { | ||
11716 | queue->mo = NULL; | ||
11717 | return; | ||
11718 | } | ||
11719 | if (0 == record->value_size) | ||
11720 | { | ||
11721 | GNUNET_PEERSTORE_monitor_next (queue->mo, 1); | ||
11722 | GNUNET_break (0); | ||
11723 | return; | ||
11724 | } | ||
11725 | queue->is_global_natted = GNUNET_YES; | ||
11726 | hello = record->value; | ||
11727 | builder = GNUNET_HELLO_builder_from_msg (hello); | ||
11728 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11729 | "before not global natted %u\n", | ||
11730 | queue->is_global_natted); | ||
11731 | GNUNET_HELLO_builder_iterate (builder, | ||
11732 | &iterate_address_and_compare_cb, | ||
11733 | queue); | ||
11734 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11735 | "after not global natted %u\n", | ||
11736 | queue->is_global_natted); | ||
11737 | GNUNET_HELLO_builder_free (builder); | ||
11738 | |||
11739 | tgna_cls.addr = get_address_without_port (queue->address); | ||
11740 | tgna_cls.tgna = NULL; | ||
11741 | address_len_without_port = strlen (tgna_cls.addr); | ||
11742 | GNUNET_CONTAINER_multipeermap_get_multiple (neighbour->natted_addresses, | ||
11743 | &neighbour->pid, | ||
11744 | &contains_address, | ||
11745 | &tgna_cls); | ||
11746 | if (NULL != tgna_cls.tgna) | ||
11747 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11748 | " tgna_cls.tgna tgna %p %lu %u %u\n", | ||
11749 | tgna_cls.tgna, | ||
11750 | neighbour->size_of_global_addresses, | ||
11751 | ntohl (tgna_cls.tgna->address_length), | ||
11752 | neighbour->number_of_addresses); | ||
11753 | if (NULL == tgna_cls.tgna && GNUNET_YES == queue->is_global_natted) | ||
11754 | { | ||
11755 | struct TransportGlobalNattedAddress *tgna; | ||
11756 | |||
11757 | tgna = GNUNET_malloc (sizeof (struct TransportGlobalNattedAddress) + address_len_without_port); | ||
11758 | tgna->address_length = htonl (address_len_without_port); | ||
11759 | GNUNET_memcpy (&tgna[1], tgna_cls.addr, address_len_without_port); | ||
11760 | GNUNET_CONTAINER_multipeermap_put (neighbour->natted_addresses, | ||
11761 | &neighbour->pid, | ||
11762 | tgna, | ||
11763 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE); | ||
11764 | neighbour->number_of_addresses++; | ||
11765 | neighbour->size_of_global_addresses += address_len_without_port; | ||
11766 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11767 | "Created tgna %p\n", | ||
11768 | tgna); | ||
11769 | } | ||
11770 | else if (NULL != tgna_cls.tgna && GNUNET_NO == queue->is_global_natted) | ||
11771 | { | ||
11772 | GNUNET_CONTAINER_multipeermap_remove (neighbour->natted_addresses, | ||
11773 | &neighbour->pid, | ||
11774 | tgna_cls.tgna); | ||
11775 | GNUNET_assert (neighbour->size_of_global_addresses >= ntohl (tgna_cls.tgna->address_length)); | ||
11776 | neighbour->size_of_global_addresses -= ntohl (tgna_cls.tgna->address_length); | ||
11777 | GNUNET_assert (0 < neighbour->number_of_addresses); | ||
11778 | neighbour->number_of_addresses--; | ||
11779 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11780 | "removed tgna %p\n", | ||
11781 | tgna_cls.tgna); | ||
11782 | GNUNET_free (tgna_cls.tgna); | ||
11783 | } | ||
11784 | GNUNET_free (tgna_cls.addr); | ||
11785 | GNUNET_PEERSTORE_monitor_next (queue->mo, 1); | ||
11786 | } | ||
11787 | |||
11788 | |||
11789 | /** | ||
11790 | * New queue became available. Process the request. | ||
11791 | * | ||
11792 | * @param cls the client | ||
11793 | * @param aqm the send message that was sent | ||
11794 | */ | ||
11795 | static void | ||
11796 | handle_add_queue_message (void *cls, | ||
11797 | const struct GNUNET_TRANSPORT_AddQueueMessage *aqm) | ||
11798 | { | ||
11799 | struct TransportClient *tc = cls; | ||
11800 | struct Queue *queue; | ||
11801 | struct Neighbour *neighbour; | ||
11802 | struct GNUNET_TIME_Absolute validated_until = GNUNET_TIME_UNIT_ZERO_ABS; | ||
11803 | const char *addr; | ||
11804 | uint16_t addr_len; | ||
11805 | |||
11806 | if (ntohl (aqm->mtu) <= sizeof(struct TransportFragmentBoxMessage)) | ||
11807 | { | ||
11808 | /* MTU so small as to be useless for transmissions, | ||
11809 | required for #fragment_message()! */ | ||
11810 | GNUNET_break_op (0); | ||
11811 | GNUNET_SERVICE_client_drop (tc->client); | ||
11812 | return; | ||
11813 | } | ||
11814 | /* This may simply be a queue update */ | ||
11815 | for (queue = tc->details.communicator.queue_head; | ||
11816 | NULL != queue; | ||
11817 | queue = queue->next_client) | ||
11818 | { | ||
11819 | validated_until = queue->validated_until; | ||
11820 | if (queue->qid != ntohl (aqm->qid)) | ||
11821 | continue; | ||
11822 | break; | ||
11823 | } | ||
11824 | |||
11825 | if (NULL != queue) | ||
11826 | { | ||
11827 | neighbour = queue->neighbour; | ||
11828 | } | ||
11829 | else | ||
11830 | { | ||
11831 | neighbour = lookup_neighbour (&aqm->receiver); | ||
11832 | if (NULL == neighbour) | ||
11833 | { | ||
11834 | neighbour = GNUNET_new (struct Neighbour); | ||
11835 | neighbour->natted_addresses = GNUNET_CONTAINER_multipeermap_create (16, GNUNET_YES); | ||
11836 | neighbour->pid = aqm->receiver; | ||
11837 | GNUNET_assert (GNUNET_OK == | ||
11838 | GNUNET_CONTAINER_multipeermap_put ( | ||
11839 | neighbours, | ||
11840 | &neighbour->pid, | ||
11841 | neighbour, | ||
11842 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)); | ||
11843 | neighbour->get = | ||
11844 | GNUNET_PEERSTORE_iteration_start (peerstore, | ||
11845 | "transport", | ||
11846 | &neighbour->pid, | ||
11847 | GNUNET_PEERSTORE_TRANSPORT_DVLEARN_MONOTIME, | ||
11848 | &neighbour_dv_monotime_cb, | ||
11849 | neighbour); | ||
11850 | } | ||
11851 | addr_len = ntohs (aqm->header.size) - sizeof(*aqm); | ||
11852 | addr = (const char *) &aqm[1]; | ||
11853 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11854 | "New queue %s to %s available with QID %u and q_len %" PRIu64 | ||
11855 | " and mtu %u\n", | ||
11856 | addr, | ||
11857 | GNUNET_i2s (&aqm->receiver), | ||
11858 | ntohl (aqm->qid), | ||
11859 | GNUNET_ntohll (aqm->q_len), | ||
11860 | ntohl (aqm->mtu)); | ||
11861 | queue = GNUNET_malloc (sizeof(struct Queue) + addr_len); | ||
11862 | queue->tc = tc; | ||
11863 | if (GNUNET_TIME_UNIT_ZERO_ABS.abs_value_us != validated_until.abs_value_us) | ||
11864 | { | ||
11865 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11866 | "New queue with QID %u inherit validated until\n", | ||
11867 | ntohl (aqm->qid)); | ||
11868 | queue->validated_until = validated_until; | ||
11869 | } | ||
11870 | queue->address = (const char *) &queue[1]; | ||
11871 | queue->pd.aged_rtt = GNUNET_TIME_UNIT_FOREVER_REL; | ||
11872 | queue->qid = ntohl (aqm->qid); | ||
11873 | queue->neighbour = neighbour; | ||
11874 | if (GNUNET_TRANSPORT_QUEUE_LENGTH_UNLIMITED == GNUNET_ntohll (aqm->q_len)) | ||
11875 | queue->unlimited_length = GNUNET_YES; | ||
11876 | queue->q_capacity = GNUNET_ntohll (aqm->q_len); | ||
11877 | memcpy (&queue[1], addr, addr_len); | ||
11878 | /* notify monitors about new queue */ | ||
11879 | { | ||
11880 | struct MonitorEvent me = { .rtt = queue->pd.aged_rtt, .cs = queue->cs }; | ||
11881 | |||
11882 | notify_monitors (&neighbour->pid, queue->address, queue->nt, &me); | ||
11883 | } | ||
11884 | GNUNET_CONTAINER_MDLL_insert (neighbour, | ||
11885 | neighbour->queue_head, | ||
11886 | neighbour->queue_tail, | ||
11887 | queue); | ||
11888 | GNUNET_CONTAINER_MDLL_insert (client, | ||
11889 | tc->details.communicator.queue_head, | ||
11890 | tc->details.communicator.queue_tail, | ||
11891 | queue); | ||
11892 | |||
11893 | } | ||
11894 | queue->mtu = ntohl (aqm->mtu); | ||
11895 | queue->nt = (enum GNUNET_NetworkType) ntohl (aqm->nt); | ||
11896 | queue->cs = (enum GNUNET_TRANSPORT_ConnectionStatus) ntohl (aqm->cs); | ||
11897 | queue->idle = GNUNET_YES; | ||
11898 | queue->mo = GNUNET_PEERSTORE_monitor_start (GST_cfg, | ||
11899 | GNUNET_YES, | ||
11900 | "peerstore", | ||
11901 | &neighbour->pid, | ||
11902 | GNUNET_PEERSTORE_HELLO_KEY, | ||
11903 | &check_for_global_natted_error_cb, | ||
11904 | NULL, | ||
11905 | &check_for_global_natted_sync_cb, | ||
11906 | NULL, | ||
11907 | &check_for_global_natted, | ||
11908 | queue); | ||
11909 | /* check if valdiations are waiting for the queue */ | ||
11910 | if (GNUNET_YES == GNUNET_CONTAINER_multipeermap_contains (validation_map, | ||
11911 | &aqm->receiver)) | ||
11912 | { | ||
11913 | if (GNUNET_SYSERR != GNUNET_CONTAINER_multipeermap_get_multiple ( | ||
11914 | validation_map, | ||
11915 | &aqm-> | ||
11916 | receiver, | ||
11917 | & | ||
11918 | check_validation_request_pending, | ||
11919 | queue)) | ||
11920 | start_address_validation (&aqm->receiver, queue->address); | ||
11921 | } | ||
11922 | else | ||
11923 | start_address_validation (&aqm->receiver, queue->address); | ||
11924 | /* look for traffic for this queue */ | ||
11925 | // TODO Check whether this makes any sense at all. | ||
11926 | /*schedule_transmit_on_queue (GNUNET_TIME_UNIT_ZERO, | ||
11927 | queue, GNUNET_SCHEDULER_PRIORITY_DEFAULT);*/ | ||
11928 | /* might be our first queue, try launching DV learning */ | ||
11929 | if (NULL == dvlearn_task) | ||
11930 | dvlearn_task = GNUNET_SCHEDULER_add_now (&start_dv_learn, NULL); | ||
11931 | GNUNET_SERVICE_client_continue (tc->client); | ||
11932 | } | ||
11933 | |||
11934 | |||
11935 | /** | ||
11936 | * @brief Handle updates to queues. | ||
11937 | * | ||
11938 | * @param cls the transport client. | ||
11939 | * @param msg Message struct. | ||
11940 | */ | ||
11941 | static void | ||
11942 | handle_update_queue_message (void *cls, | ||
11943 | const struct | ||
11944 | GNUNET_TRANSPORT_UpdateQueueMessage *msg) | ||
11945 | { | ||
11946 | struct TransportClient *tc = cls; | ||
11947 | struct Queue *target_queue = NULL; | ||
11948 | |||
11949 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
11950 | "Received queue update message for %u with q_len %llu and mtu %u\n", | ||
11951 | ntohl (msg->qid), | ||
11952 | (unsigned long long) GNUNET_ntohll (msg->q_len), | ||
11953 | ntohl (msg->mtu)); | ||
11954 | for (target_queue = tc->details.communicator.queue_head; | ||
11955 | NULL != target_queue; | ||
11956 | target_queue = target_queue->next_client) | ||
11957 | { | ||
11958 | if (ntohl (msg->qid) == target_queue->qid) | ||
11959 | break; | ||
11960 | } | ||
11961 | if (NULL == target_queue) | ||
11962 | { | ||
11963 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
11964 | "Queue to update no longer exists! Discarding update.\n"); | ||
11965 | return; | ||
11966 | } | ||
11967 | |||
11968 | target_queue->nt = msg->nt; | ||
11969 | target_queue->mtu = ntohl (msg->mtu); | ||
11970 | target_queue->cs = msg->cs; | ||
11971 | target_queue->priority = ntohl (msg->priority); | ||
11972 | /* The update message indicates how many messages | ||
11973 | * the queue should be able to handle. | ||
11974 | */ | ||
11975 | if (GNUNET_TRANSPORT_QUEUE_LENGTH_UNLIMITED == GNUNET_ntohll (msg->q_len)) | ||
11976 | target_queue->unlimited_length = GNUNET_YES; | ||
11977 | else | ||
11978 | target_queue->unlimited_length = GNUNET_NO; | ||
11979 | target_queue->q_capacity += GNUNET_ntohll (msg->q_len); | ||
11980 | if (0 < target_queue->q_capacity) | ||
11981 | schedule_transmit_on_queue (GNUNET_TIME_UNIT_ZERO, | ||
11982 | target_queue, | ||
11983 | GNUNET_SCHEDULER_PRIORITY_DEFAULT); | ||
11984 | GNUNET_SERVICE_client_continue (tc->client); | ||
11985 | } | ||
11986 | |||
11987 | |||
11988 | /** | ||
11989 | * Communicator tells us that our request to create a queue "worked", that | ||
11990 | * is setting up the queue is now in process. | ||
11991 | * | ||
11992 | * @param cls the `struct TransportClient` | ||
11993 | * @param cqr confirmation message | ||
11994 | */ | ||
11995 | static void | ||
11996 | handle_queue_create_ok (void *cls, | ||
11997 | const struct GNUNET_TRANSPORT_CreateQueueResponse *cqr) | ||
11998 | { | ||
11999 | struct TransportClient *tc = cls; | ||
12000 | |||
12001 | if (CT_COMMUNICATOR != tc->type) | ||
12002 | { | ||
12003 | GNUNET_break (0); | ||
12004 | GNUNET_SERVICE_client_drop (tc->client); | ||
12005 | return; | ||
12006 | } | ||
12007 | GNUNET_STATISTICS_update (GST_stats, | ||
12008 | "# Suggestions succeeded at communicator", | ||
12009 | 1, | ||
12010 | GNUNET_NO); | ||
12011 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
12012 | "Request #%u for communicator to create queue succeeded\n", | ||
12013 | (unsigned int) ntohs (cqr->request_id)); | ||
12014 | GNUNET_SERVICE_client_continue (tc->client); | ||
12015 | } | ||
12016 | |||
12017 | |||
12018 | /** | ||
12019 | * Communicator tells us that our request to create a queue failed. This | ||
12020 | * usually indicates that the provided address is simply invalid or that the | ||
12021 | * communicator's resources are exhausted. | ||
12022 | * | ||
12023 | * @param cls the `struct TransportClient` | ||
12024 | * @param cqr failure message | ||
12025 | */ | ||
12026 | static void | ||
12027 | handle_queue_create_fail ( | ||
12028 | void *cls, | ||
12029 | const struct GNUNET_TRANSPORT_CreateQueueResponse *cqr) | ||
12030 | { | ||
12031 | struct TransportClient *tc = cls; | ||
12032 | |||
12033 | if (CT_COMMUNICATOR != tc->type) | ||
12034 | { | ||
12035 | GNUNET_break (0); | ||
12036 | GNUNET_SERVICE_client_drop (tc->client); | ||
12037 | return; | ||
12038 | } | ||
12039 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
12040 | "Request #%u for communicator to create queue failed\n", | ||
12041 | (unsigned int) ntohs (cqr->request_id)); | ||
12042 | GNUNET_STATISTICS_update (GST_stats, | ||
12043 | "# Suggestions failed in queue creation at communicator", | ||
12044 | 1, | ||
12045 | GNUNET_NO); | ||
12046 | GNUNET_SERVICE_client_continue (tc->client); | ||
12047 | } | ||
12048 | |||
12049 | |||
12050 | /** | ||
12051 | * We have received a `struct ExpressPreferenceMessage` from an application | ||
12052 | * client. | ||
12053 | * | ||
12054 | * @param cls handle to the client | ||
12055 | * @param msg the start message | ||
12056 | */ | ||
12057 | static void | ||
12058 | handle_suggest_cancel (void *cls, const struct ExpressPreferenceMessage *msg) | ||
12059 | { | ||
12060 | struct TransportClient *tc = cls; | ||
12061 | struct PeerRequest *pr; | ||
12062 | |||
12063 | if (CT_APPLICATION != tc->type) | ||
12064 | { | ||
12065 | GNUNET_break (0); | ||
12066 | GNUNET_SERVICE_client_drop (tc->client); | ||
12067 | return; | ||
12068 | } | ||
12069 | pr = GNUNET_CONTAINER_multipeermap_get (tc->details.application.requests, | ||
12070 | &msg->peer); | ||
12071 | if (NULL == pr) | ||
12072 | { | ||
12073 | GNUNET_break (0); | ||
12074 | GNUNET_SERVICE_client_drop (tc->client); | ||
12075 | return; | ||
12076 | } | ||
12077 | (void) stop_peer_request (tc, &pr->pid, pr); | ||
12078 | GNUNET_SERVICE_client_continue (tc->client); | ||
12079 | } | ||
12080 | |||
12081 | |||
12082 | static void | ||
12083 | hello_for_client_cb (void *cls, | ||
12084 | const struct GNUNET_PeerIdentity *pid, | ||
12085 | const char *uri) | ||
12086 | { | ||
12087 | (void) cls; | ||
12088 | struct Queue *q; | ||
12089 | int pfx_len; | ||
12090 | const char *eou; | ||
12091 | char *address; | ||
12092 | |||
12093 | eou = strstr (uri, | ||
12094 | "://"); | ||
12095 | pfx_len = eou - uri; | ||
12096 | eou += 3; | ||
12097 | GNUNET_asprintf (&address, | ||
12098 | "%.*s-%s", | ||
12099 | pfx_len, | ||
12100 | uri, | ||
12101 | eou); | ||
12102 | |||
12103 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
12104 | "hello for client %s\n", | ||
12105 | address); | ||
12106 | |||
12107 | q = find_queue (pid, address); | ||
12108 | if (NULL == q) | ||
12109 | { | ||
12110 | suggest_to_connect (pid, address); | ||
12111 | } | ||
12112 | else | ||
12113 | start_address_validation (pid, address); | ||
12114 | GNUNET_free (address); | ||
12115 | } | ||
12116 | |||
12117 | |||
12118 | /** | ||
12119 | * Function called by PEERSTORE for each matching record. | ||
12120 | * | ||
12121 | * @param cls closure, a `struct PeerRequest` | ||
12122 | * @param record peerstore record information | ||
12123 | * @param emsg error message, or NULL if no errors | ||
12124 | */ | ||
12125 | static void | ||
12126 | handle_hello_for_client (void *cls, | ||
12127 | const struct GNUNET_PEERSTORE_Record *record, | ||
12128 | const char *emsg) | ||
12129 | { | ||
12130 | struct PeerRequest *pr = cls; | ||
12131 | struct GNUNET_HELLO_Builder *builder; | ||
12132 | struct GNUNET_MessageHeader *hello; | ||
12133 | |||
12134 | if (NULL != emsg) | ||
12135 | { | ||
12136 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
12137 | "Got failure from PEERSTORE: %s\n", | ||
12138 | emsg); | ||
12139 | return; | ||
12140 | } | ||
12141 | hello = record->value; | ||
12142 | if (0 == GNUNET_memcmp (&record->peer, &GST_my_identity)) | ||
12143 | { | ||
12144 | GNUNET_PEERSTORE_monitor_next (pr->nc, 1); | ||
12145 | return; | ||
12146 | } | ||
12147 | builder = GNUNET_HELLO_builder_from_msg (hello); | ||
12148 | GNUNET_HELLO_builder_iterate (builder, | ||
12149 | hello_for_client_cb, | ||
12150 | NULL); | ||
12151 | GNUNET_HELLO_builder_free (builder); | ||
12152 | } | ||
12153 | |||
12154 | |||
12155 | static void | ||
12156 | hello_for_client_error_cb (void *cls) | ||
12157 | { | ||
12158 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
12159 | "Error in PEERSTORE monitoring\n"); | ||
12160 | } | ||
12161 | |||
12162 | |||
12163 | static void | ||
12164 | hello_for_client_sync_cb (void *cls) | ||
12165 | { | ||
12166 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
12167 | "Done with initial PEERSTORE iteration during monitoring\n"); | ||
12168 | } | ||
12169 | |||
12170 | |||
12171 | /** | ||
12172 | * We have received a `struct ExpressPreferenceMessage` from an application | ||
12173 | * client. | ||
12174 | * | ||
12175 | * @param cls handle to the client | ||
12176 | * @param msg the start message | ||
12177 | */ | ||
12178 | static void | ||
12179 | handle_suggest (void *cls, const struct ExpressPreferenceMessage *msg) | ||
12180 | { | ||
12181 | struct TransportClient *tc = cls; | ||
12182 | struct PeerRequest *pr; | ||
12183 | |||
12184 | if (CT_NONE == tc->type) | ||
12185 | { | ||
12186 | tc->type = CT_APPLICATION; | ||
12187 | tc->details.application.requests = | ||
12188 | GNUNET_CONTAINER_multipeermap_create (16, GNUNET_YES); | ||
12189 | } | ||
12190 | if (CT_APPLICATION != tc->type) | ||
12191 | { | ||
12192 | GNUNET_break (0); | ||
12193 | GNUNET_SERVICE_client_drop (tc->client); | ||
12194 | return; | ||
12195 | } | ||
12196 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
12197 | "Client suggested we talk to %s with preference %d at rate %u\n", | ||
12198 | GNUNET_i2s (&msg->peer), | ||
12199 | (int) ntohl (msg->pk), | ||
12200 | (int) ntohl (msg->bw.value__)); | ||
12201 | pr = GNUNET_new (struct PeerRequest); | ||
12202 | pr->tc = tc; | ||
12203 | pr->pid = msg->peer; | ||
12204 | pr->bw = msg->bw; | ||
12205 | pr->pk = (enum GNUNET_MQ_PriorityPreferences) ntohl (msg->pk); | ||
12206 | if (GNUNET_YES != GNUNET_CONTAINER_multipeermap_put ( | ||
12207 | tc->details.application.requests, | ||
12208 | &pr->pid, | ||
12209 | pr, | ||
12210 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)) | ||
12211 | { | ||
12212 | GNUNET_break (0); | ||
12213 | GNUNET_free (pr); | ||
12214 | GNUNET_SERVICE_client_drop (tc->client); | ||
12215 | return; | ||
12216 | } | ||
12217 | pr->nc = | ||
12218 | GNUNET_PEERSTORE_monitor_start (GST_cfg, | ||
12219 | GNUNET_YES, | ||
12220 | "peerstore", | ||
12221 | NULL, | ||
12222 | GNUNET_PEERSTORE_HELLO_KEY, | ||
12223 | &hello_for_client_error_cb, | ||
12224 | NULL, | ||
12225 | &hello_for_client_sync_cb, | ||
12226 | NULL, | ||
12227 | &handle_hello_for_client, | ||
12228 | pr); | ||
12229 | GNUNET_SERVICE_client_continue (tc->client); | ||
12230 | } | ||
12231 | |||
12232 | |||
12233 | /** | ||
12234 | * Check #GNUNET_MESSAGE_TYPE_TRANSPORT_REQUEST_HELLO_VALIDATION | ||
12235 | * messages. | ||
12236 | * | ||
12237 | * @param cls a `struct TransportClient *` | ||
12238 | * @param m message to verify | ||
12239 | * @return #GNUNET_OK on success | ||
12240 | */ | ||
12241 | static int | ||
12242 | check_request_hello_validation (void *cls, | ||
12243 | const struct RequestHelloValidationMessage *m) | ||
12244 | { | ||
12245 | (void) cls; | ||
12246 | GNUNET_MQ_check_zero_termination (m); | ||
12247 | return GNUNET_OK; | ||
12248 | } | ||
12249 | |||
12250 | |||
12251 | /** | ||
12252 | * A client encountered an address of another peer. Consider validating it, | ||
12253 | * and if validation succeeds, persist it to PEERSTORE. | ||
12254 | * | ||
12255 | * @param cls a `struct TransportClient *` | ||
12256 | * @param m message to verify | ||
12257 | */ | ||
12258 | static void | ||
12259 | handle_request_hello_validation (void *cls, | ||
12260 | const struct RequestHelloValidationMessage *m) | ||
12261 | { | ||
12262 | struct TransportClient *tc = cls; | ||
12263 | struct Queue *q; | ||
12264 | |||
12265 | q = find_queue (&m->peer, (const char *) &m[1]); | ||
12266 | if (NULL == q) | ||
12267 | { | ||
12268 | suggest_to_connect (&m->peer, (const char *) &m[1]); | ||
12269 | } | ||
12270 | else | ||
12271 | start_address_validation (&m->peer, (const char *) &m[1]); | ||
12272 | GNUNET_SERVICE_client_continue (tc->client); | ||
12273 | } | ||
12274 | |||
12275 | |||
12276 | /** | ||
12277 | * Free neighbour entry. | ||
12278 | * | ||
12279 | * @param cls NULL | ||
12280 | * @param pid unused | ||
12281 | * @param value a `struct Neighbour` | ||
12282 | * @return #GNUNET_OK (always) | ||
12283 | */ | ||
12284 | static int | ||
12285 | free_neighbour_cb (void *cls, | ||
12286 | const struct GNUNET_PeerIdentity *pid, | ||
12287 | void *value) | ||
12288 | { | ||
12289 | struct Neighbour *neighbour = value; | ||
12290 | |||
12291 | (void) cls; | ||
12292 | (void) pid; | ||
12293 | GNUNET_break (0); // should this ever happen? | ||
12294 | free_neighbour (neighbour); | ||
12295 | |||
12296 | return GNUNET_OK; | ||
12297 | } | ||
12298 | |||
12299 | |||
12300 | /** | ||
12301 | * Free DV route entry. | ||
12302 | * | ||
12303 | * @param cls NULL | ||
12304 | * @param pid unused | ||
12305 | * @param value a `struct DistanceVector` | ||
12306 | * @return #GNUNET_OK (always) | ||
12307 | */ | ||
12308 | static int | ||
12309 | free_dv_routes_cb (void *cls, | ||
12310 | const struct GNUNET_PeerIdentity *pid, | ||
12311 | void *value) | ||
12312 | { | ||
12313 | struct DistanceVector *dv = value; | ||
12314 | |||
12315 | (void) cls; | ||
12316 | (void) pid; | ||
12317 | free_dv_route (dv); | ||
12318 | |||
12319 | return GNUNET_OK; | ||
12320 | } | ||
12321 | |||
12322 | |||
12323 | /** | ||
12324 | * Free validation state. | ||
12325 | * | ||
12326 | * @param cls NULL | ||
12327 | * @param pid unused | ||
12328 | * @param value a `struct ValidationState` | ||
12329 | * @return #GNUNET_OK (always) | ||
12330 | */ | ||
12331 | static int | ||
12332 | free_validation_state_cb (void *cls, | ||
12333 | const struct GNUNET_PeerIdentity *pid, | ||
12334 | void *value) | ||
12335 | { | ||
12336 | struct ValidationState *vs = value; | ||
12337 | |||
12338 | (void) cls; | ||
12339 | (void) pid; | ||
12340 | free_validation_state (vs); | ||
12341 | return GNUNET_OK; | ||
12342 | } | ||
12343 | |||
12344 | |||
12345 | /** | ||
12346 | * Free pending acknowledgement. | ||
12347 | * | ||
12348 | * @param cls NULL | ||
12349 | * @param key unused | ||
12350 | * @param value a `struct PendingAcknowledgement` | ||
12351 | * @return #GNUNET_OK (always) | ||
12352 | */ | ||
12353 | static int | ||
12354 | free_pending_ack_cb (void *cls, const struct GNUNET_Uuid *key, void *value) | ||
12355 | { | ||
12356 | struct PendingAcknowledgement *pa = value; | ||
12357 | |||
12358 | (void) cls; | ||
12359 | (void) key; | ||
12360 | free_pending_acknowledgement (pa); | ||
12361 | return GNUNET_OK; | ||
12362 | } | ||
12363 | |||
12364 | |||
12365 | /** | ||
12366 | * Free acknowledgement cummulator. | ||
12367 | * | ||
12368 | * @param cls NULL | ||
12369 | * @param pid unused | ||
12370 | * @param value a `struct AcknowledgementCummulator` | ||
12371 | * @return #GNUNET_OK (always) | ||
12372 | */ | ||
12373 | static int | ||
12374 | free_ack_cummulator_cb (void *cls, | ||
12375 | const struct GNUNET_PeerIdentity *pid, | ||
12376 | void *value) | ||
12377 | { | ||
12378 | struct AcknowledgementCummulator *ac = value; | ||
12379 | |||
12380 | (void) cls; | ||
12381 | (void) pid; | ||
12382 | GNUNET_SCHEDULER_cancel (ac->task); | ||
12383 | GNUNET_free (ac); | ||
12384 | return GNUNET_OK; | ||
12385 | } | ||
12386 | |||
12387 | |||
12388 | /** | ||
12389 | * Function called when the service shuts down. Unloads our plugins | ||
12390 | * and cancels pending validations. | ||
12391 | * | ||
12392 | * @param cls closure, unused | ||
12393 | */ | ||
12394 | static void | ||
12395 | do_shutdown (void *cls) | ||
12396 | { | ||
12397 | struct LearnLaunchEntry *lle; | ||
12398 | (void) cls; | ||
12399 | |||
12400 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
12401 | "shutdown logic\n"); | ||
12402 | GNUNET_NAT_unregister (nh); | ||
12403 | GNUNET_CONTAINER_multipeermap_iterate (neighbours, | ||
12404 | &free_neighbour_cb, NULL); | ||
12405 | if (NULL != validation_task) | ||
12406 | { | ||
12407 | GNUNET_SCHEDULER_cancel (validation_task); | ||
12408 | validation_task = NULL; | ||
12409 | } | ||
12410 | if (NULL != dvlearn_task) | ||
12411 | { | ||
12412 | GNUNET_SCHEDULER_cancel (dvlearn_task); | ||
12413 | dvlearn_task = NULL; | ||
12414 | } | ||
12415 | if (NULL != GST_stats) | ||
12416 | { | ||
12417 | GNUNET_STATISTICS_destroy (GST_stats, GNUNET_NO); | ||
12418 | GST_stats = NULL; | ||
12419 | } | ||
12420 | if (NULL != GST_my_hello) | ||
12421 | { | ||
12422 | GNUNET_HELLO_builder_free (GST_my_hello); | ||
12423 | GST_my_hello = NULL; | ||
12424 | } | ||
12425 | if (NULL != GST_my_private_key) | ||
12426 | { | ||
12427 | GNUNET_free (GST_my_private_key); | ||
12428 | GST_my_private_key = NULL; | ||
12429 | } | ||
12430 | GNUNET_CONTAINER_multipeermap_iterate (ack_cummulators, | ||
12431 | &free_ack_cummulator_cb, | ||
12432 | NULL); | ||
12433 | GNUNET_CONTAINER_multipeermap_destroy (ack_cummulators); | ||
12434 | ack_cummulators = NULL; | ||
12435 | GNUNET_CONTAINER_multiuuidmap_iterate (pending_acks, | ||
12436 | &free_pending_ack_cb, | ||
12437 | NULL); | ||
12438 | GNUNET_CONTAINER_multiuuidmap_destroy (pending_acks); | ||
12439 | pending_acks = NULL; | ||
12440 | GNUNET_break (0 == GNUNET_CONTAINER_multipeermap_size (neighbours)); | ||
12441 | GNUNET_CONTAINER_multipeermap_destroy (neighbours); | ||
12442 | neighbours = NULL; | ||
12443 | GNUNET_break (0 == GNUNET_CONTAINER_multipeermap_size (links)); | ||
12444 | GNUNET_CONTAINER_multipeermap_destroy (links); | ||
12445 | links = NULL; | ||
12446 | GNUNET_CONTAINER_multipeermap_iterate (backtalkers, | ||
12447 | &free_backtalker_cb, | ||
12448 | NULL); | ||
12449 | GNUNET_CONTAINER_multipeermap_destroy (backtalkers); | ||
12450 | backtalkers = NULL; | ||
12451 | GNUNET_CONTAINER_multipeermap_iterate (validation_map, | ||
12452 | &free_validation_state_cb, | ||
12453 | NULL); | ||
12454 | GNUNET_CONTAINER_multipeermap_destroy (validation_map); | ||
12455 | validation_map = NULL; | ||
12456 | GNUNET_CONTAINER_multihashmap_destroy (revalidation_map); | ||
12457 | revalidation_map = NULL; | ||
12458 | while (NULL != ir_head) | ||
12459 | free_incoming_request (ir_head); | ||
12460 | GNUNET_assert (0 == ir_total); | ||
12461 | while (NULL != (lle = lle_head)) | ||
12462 | { | ||
12463 | GNUNET_CONTAINER_DLL_remove (lle_head, lle_tail, lle); | ||
12464 | GNUNET_free (lle); | ||
12465 | } | ||
12466 | if (NULL != peerstore) | ||
12467 | { | ||
12468 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
12469 | "Disconnecting from PEERSTORE service\n"); | ||
12470 | GNUNET_PEERSTORE_disconnect (peerstore); | ||
12471 | peerstore = NULL; | ||
12472 | } | ||
12473 | GNUNET_CONTAINER_multishortmap_destroy (dvlearn_map); | ||
12474 | dvlearn_map = NULL; | ||
12475 | GNUNET_CONTAINER_heap_destroy (validation_heap); | ||
12476 | validation_heap = NULL; | ||
12477 | GNUNET_CONTAINER_multipeermap_iterate (dv_routes, &free_dv_routes_cb, NULL); | ||
12478 | GNUNET_CONTAINER_multipeermap_destroy (dv_routes); | ||
12479 | dv_routes = NULL; | ||
12480 | GNUNET_SCHEDULER_shutdown (); | ||
12481 | } | ||
12482 | |||
12483 | |||
12484 | static void | ||
12485 | shutdown_task (void *cls) | ||
12486 | { | ||
12487 | in_shutdown = GNUNET_YES; | ||
12488 | |||
12489 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
12490 | "Shutdown task executed\n"); | ||
12491 | if (NULL != clients_head) | ||
12492 | { | ||
12493 | for (struct TransportClient *tc = clients_head; NULL != tc; tc = tc->next) | ||
12494 | { | ||
12495 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
12496 | "client still connected: %u\n", | ||
12497 | tc->type); | ||
12498 | } | ||
12499 | } | ||
12500 | else | ||
12501 | do_shutdown (cls); | ||
12502 | |||
12503 | } | ||
12504 | |||
12505 | |||
12506 | /** | ||
12507 | * Initiate transport service. | ||
12508 | * | ||
12509 | * @param cls closure | ||
12510 | * @param c configuration to use | ||
12511 | * @param service the initialized service | ||
12512 | */ | ||
12513 | static void | ||
12514 | run (void *cls, | ||
12515 | const struct GNUNET_CONFIGURATION_Handle *c, | ||
12516 | struct GNUNET_SERVICE_Handle *service) | ||
12517 | { | ||
12518 | (void) cls; | ||
12519 | (void) service; | ||
12520 | /* setup globals */ | ||
12521 | hello_mono_time = GNUNET_TIME_absolute_get_monotonic (c); | ||
12522 | in_shutdown = GNUNET_NO; | ||
12523 | GST_cfg = c; | ||
12524 | backtalkers = GNUNET_CONTAINER_multipeermap_create (16, GNUNET_YES); | ||
12525 | pending_acks = GNUNET_CONTAINER_multiuuidmap_create (32768, GNUNET_YES); | ||
12526 | ack_cummulators = GNUNET_CONTAINER_multipeermap_create (256, GNUNET_YES); | ||
12527 | neighbours = GNUNET_CONTAINER_multipeermap_create (1024, GNUNET_YES); | ||
12528 | links = GNUNET_CONTAINER_multipeermap_create (512, GNUNET_YES); | ||
12529 | dv_routes = GNUNET_CONTAINER_multipeermap_create (1024, GNUNET_YES); | ||
12530 | dvlearn_map = GNUNET_CONTAINER_multishortmap_create (2 * MAX_DV_LEARN_PENDING, | ||
12531 | GNUNET_YES); | ||
12532 | validation_map = GNUNET_CONTAINER_multipeermap_create (1024, GNUNET_YES); | ||
12533 | revalidation_map = GNUNET_CONTAINER_multihashmap_create (1024, GNUNET_YES); | ||
12534 | validation_heap = | ||
12535 | GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN); | ||
12536 | GST_my_private_key = | ||
12537 | GNUNET_CRYPTO_eddsa_key_create_from_configuration (GST_cfg); | ||
12538 | if (NULL == GST_my_private_key) | ||
12539 | { | ||
12540 | GNUNET_log ( | ||
12541 | GNUNET_ERROR_TYPE_ERROR, | ||
12542 | _ ( | ||
12543 | "Transport service is lacking key configuration settings. Exiting.\n")); | ||
12544 | GNUNET_SCHEDULER_shutdown (); | ||
12545 | return; | ||
12546 | } | ||
12547 | GNUNET_CRYPTO_eddsa_key_get_public (GST_my_private_key, | ||
12548 | &GST_my_identity.public_key); | ||
12549 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
12550 | "My identity is `%s'\n", | ||
12551 | GNUNET_i2s_full (&GST_my_identity)); | ||
12552 | GST_my_hello = GNUNET_HELLO_builder_new (&GST_my_identity); | ||
12553 | GST_stats = GNUNET_STATISTICS_create ("transport", GST_cfg); | ||
12554 | GNUNET_SCHEDULER_add_shutdown (&shutdown_task, NULL); | ||
12555 | peerstore = GNUNET_PEERSTORE_connect (GST_cfg); | ||
12556 | nh = GNUNET_NAT_register (GST_cfg, | ||
12557 | "transport", | ||
12558 | 0, | ||
12559 | 0, | ||
12560 | NULL, | ||
12561 | 0, | ||
12562 | NULL, | ||
12563 | NULL, | ||
12564 | NULL); | ||
12565 | if (NULL == peerstore) | ||
12566 | { | ||
12567 | GNUNET_break (0); | ||
12568 | GNUNET_SCHEDULER_shutdown (); | ||
12569 | return; | ||
12570 | } | ||
12571 | } | ||
12572 | |||
12573 | |||
12574 | /** | ||
12575 | * Define "main" method using service macro. | ||
12576 | */ | ||
12577 | GNUNET_SERVICE_MAIN ( | ||
12578 | "transport", | ||
12579 | GNUNET_SERVICE_OPTION_SOFT_SHUTDOWN, | ||
12580 | &run, | ||
12581 | &client_connect_cb, | ||
12582 | &client_disconnect_cb, | ||
12583 | NULL, | ||
12584 | /* communication with applications */ | ||
12585 | GNUNET_MQ_hd_fixed_size (suggest, | ||
12586 | GNUNET_MESSAGE_TYPE_TRANSPORT_SUGGEST, | ||
12587 | struct ExpressPreferenceMessage, | ||
12588 | NULL), | ||
12589 | GNUNET_MQ_hd_fixed_size (suggest_cancel, | ||
12590 | GNUNET_MESSAGE_TYPE_TRANSPORT_SUGGEST_CANCEL, | ||
12591 | struct ExpressPreferenceMessage, | ||
12592 | NULL), | ||
12593 | GNUNET_MQ_hd_var_size (request_hello_validation, | ||
12594 | GNUNET_MESSAGE_TYPE_TRANSPORT_REQUEST_HELLO_VALIDATION, | ||
12595 | struct RequestHelloValidationMessage, | ||
12596 | NULL), | ||
12597 | /* communication with core */ | ||
12598 | GNUNET_MQ_hd_fixed_size (client_start, | ||
12599 | GNUNET_MESSAGE_TYPE_TRANSPORT_START, | ||
12600 | struct StartMessage, | ||
12601 | NULL), | ||
12602 | GNUNET_MQ_hd_var_size (client_send, | ||
12603 | GNUNET_MESSAGE_TYPE_TRANSPORT_SEND, | ||
12604 | struct OutboundMessage, | ||
12605 | NULL), | ||
12606 | GNUNET_MQ_hd_fixed_size (client_recv_ok, | ||
12607 | GNUNET_MESSAGE_TYPE_TRANSPORT_RECV_OK, | ||
12608 | struct RecvOkMessage, | ||
12609 | NULL), | ||
12610 | /* communication with communicators */ | ||
12611 | GNUNET_MQ_hd_var_size (communicator_available, | ||
12612 | GNUNET_MESSAGE_TYPE_TRANSPORT_NEW_COMMUNICATOR, | ||
12613 | struct GNUNET_TRANSPORT_CommunicatorAvailableMessage, | ||
12614 | NULL), | ||
12615 | GNUNET_MQ_hd_var_size (communicator_backchannel, | ||
12616 | GNUNET_MESSAGE_TYPE_TRANSPORT_COMMUNICATOR_BACKCHANNEL, | ||
12617 | struct GNUNET_TRANSPORT_CommunicatorBackchannel, | ||
12618 | NULL), | ||
12619 | GNUNET_MQ_hd_var_size (add_address, | ||
12620 | GNUNET_MESSAGE_TYPE_TRANSPORT_ADD_ADDRESS, | ||
12621 | struct GNUNET_TRANSPORT_AddAddressMessage, | ||
12622 | NULL), | ||
12623 | GNUNET_MQ_hd_fixed_size (del_address, | ||
12624 | GNUNET_MESSAGE_TYPE_TRANSPORT_DEL_ADDRESS, | ||
12625 | struct GNUNET_TRANSPORT_DelAddressMessage, | ||
12626 | NULL), | ||
12627 | GNUNET_MQ_hd_var_size (incoming_msg, | ||
12628 | GNUNET_MESSAGE_TYPE_TRANSPORT_INCOMING_MSG, | ||
12629 | struct GNUNET_TRANSPORT_IncomingMessage, | ||
12630 | NULL), | ||
12631 | GNUNET_MQ_hd_fixed_size (queue_create_ok, | ||
12632 | GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE_OK, | ||
12633 | struct GNUNET_TRANSPORT_CreateQueueResponse, | ||
12634 | NULL), | ||
12635 | GNUNET_MQ_hd_fixed_size (queue_create_fail, | ||
12636 | GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE_FAIL, | ||
12637 | struct GNUNET_TRANSPORT_CreateQueueResponse, | ||
12638 | NULL), | ||
12639 | GNUNET_MQ_hd_var_size (add_queue_message, | ||
12640 | GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_SETUP, | ||
12641 | struct GNUNET_TRANSPORT_AddQueueMessage, | ||
12642 | NULL), | ||
12643 | GNUNET_MQ_hd_fixed_size (update_queue_message, | ||
12644 | GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_UPDATE, | ||
12645 | struct GNUNET_TRANSPORT_UpdateQueueMessage, | ||
12646 | NULL), | ||
12647 | GNUNET_MQ_hd_fixed_size (del_queue_message, | ||
12648 | GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_TEARDOWN, | ||
12649 | struct GNUNET_TRANSPORT_DelQueueMessage, | ||
12650 | NULL), | ||
12651 | GNUNET_MQ_hd_fixed_size (send_message_ack, | ||
12652 | GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_MSG_ACK, | ||
12653 | struct GNUNET_TRANSPORT_SendMessageToAck, | ||
12654 | NULL), | ||
12655 | /* communication with monitors */ | ||
12656 | GNUNET_MQ_hd_fixed_size (monitor_start, | ||
12657 | GNUNET_MESSAGE_TYPE_TRANSPORT_MONITOR_START, | ||
12658 | struct GNUNET_TRANSPORT_MonitorStart, | ||
12659 | NULL), | ||
12660 | GNUNET_MQ_handler_end ()); | ||
12661 | |||
12662 | |||
12663 | /* end of file gnunet-service-transport.c */ | ||
diff --git a/src/service/transport/gnunet-service-transport.h b/src/service/transport/gnunet-service-transport.h new file mode 100644 index 000000000..ea9e71e4b --- /dev/null +++ b/src/service/transport/gnunet-service-transport.h | |||
@@ -0,0 +1,234 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2010,2011 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/gnunet-service-transport.h | ||
23 | * @brief globals | ||
24 | * @author Christian Grothoff | ||
25 | */ | ||
26 | #ifndef GNUNET_SERVICE_TRANSPORT_H | ||
27 | #define GNUNET_SERVICE_TRANSPORT_H | ||
28 | |||
29 | #include "gnunet_util_lib.h" | ||
30 | #include "gnunet_statistics_service.h" | ||
31 | #include "gnunet_ats_service.h" | ||
32 | #include "gnunet_transport_service.h" | ||
33 | |||
34 | #define VERBOSE_VALIDATION GNUNET_YES | ||
35 | |||
36 | /** | ||
37 | * Statistics handle. | ||
38 | */ | ||
39 | extern struct GNUNET_STATISTICS_Handle *GST_stats; | ||
40 | |||
41 | /** | ||
42 | * Configuration handle. | ||
43 | */ | ||
44 | extern const struct GNUNET_CONFIGURATION_Handle *GST_cfg; | ||
45 | |||
46 | /** | ||
47 | * Configuration handle. | ||
48 | */ | ||
49 | extern struct GNUNET_PeerIdentity GST_my_identity; | ||
50 | |||
51 | /** | ||
52 | * Handle to peerinfo service. | ||
53 | */ | ||
54 | extern struct GNUNET_PEERINFO_Handle *GST_peerinfo; | ||
55 | |||
56 | /** | ||
57 | * Our private key. | ||
58 | */ | ||
59 | extern struct GNUNET_CRYPTO_EddsaPrivateKey GST_my_private_key; | ||
60 | |||
61 | /** | ||
62 | * ATS handle. | ||
63 | */ | ||
64 | extern struct GNUNET_ATS_SchedulingHandle *GST_ats; | ||
65 | |||
66 | /** | ||
67 | * ATS connectivity handle. | ||
68 | */ | ||
69 | extern struct GNUNET_ATS_ConnectivityHandle *GST_ats_connect; | ||
70 | |||
71 | /** | ||
72 | * Interface scanner determines our LAN address range(s). | ||
73 | */ | ||
74 | extern struct GNUNET_NT_InterfaceScanner *GST_is; | ||
75 | |||
76 | |||
77 | /** | ||
78 | * Function to call when a peer's address has changed | ||
79 | * | ||
80 | * @param cls closure | ||
81 | * @param peer peer this update is about, | ||
82 | * @param address address, NULL for disconnect notification | ||
83 | */ | ||
84 | typedef void | ||
85 | (*GNUNET_TRANSPORT_NeighbourChangeCallback) (void *cls, | ||
86 | const struct | ||
87 | GNUNET_PeerIdentity *peer, | ||
88 | const struct | ||
89 | GNUNET_HELLO_Address *address, | ||
90 | enum GNUNET_TRANSPORT_PeerState | ||
91 | state, | ||
92 | struct GNUNET_TIME_Absolute | ||
93 | state_timeout, | ||
94 | struct GNUNET_BANDWIDTH_Value32NBO | ||
95 | bandwidth_in, | ||
96 | struct GNUNET_BANDWIDTH_Value32NBO | ||
97 | bandwidth_out); | ||
98 | |||
99 | |||
100 | /** | ||
101 | * Continuation called from a blacklist test. | ||
102 | * | ||
103 | * @param cls closure | ||
104 | * @param peer identity of peer that was tested | ||
105 | * @param address address associated with the request | ||
106 | * @param session session associated with the request | ||
107 | * @param result #GNUNET_OK if the connection is allowed, | ||
108 | * #GNUNET_NO if not, | ||
109 | * #GNUNET_SYSERR if operation was aborted | ||
110 | */ | ||
111 | typedef void | ||
112 | (*GST_BlacklistTestContinuation) (void *cls, | ||
113 | const struct GNUNET_PeerIdentity *peer, | ||
114 | const struct GNUNET_HELLO_Address *address, | ||
115 | struct GNUNET_ATS_Session *session, | ||
116 | int result); | ||
117 | |||
118 | |||
119 | /** | ||
120 | * Add the given peer to the blacklist (for the given transport). | ||
121 | * | ||
122 | * @param peer peer to blacklist | ||
123 | * @param transport_name transport to blacklist for this peer, NULL for all | ||
124 | */ | ||
125 | void | ||
126 | GST_blacklist_add_peer (const struct GNUNET_PeerIdentity *peer, | ||
127 | const char *transport_name); | ||
128 | |||
129 | |||
130 | /** | ||
131 | * Handle to an active blacklist check. | ||
132 | */ | ||
133 | struct GST_BlacklistCheck; | ||
134 | |||
135 | |||
136 | /** | ||
137 | * Test if a peer/transport combination is blacklisted. | ||
138 | * | ||
139 | * @param peer the identity of the peer to test | ||
140 | * @param transport_name name of the transport to test, never NULL | ||
141 | * @param cont function to call with result | ||
142 | * @param cont_cls closure for @a cont | ||
143 | * @param address address to pass back to @a cont, can be NULL | ||
144 | * @param session session to pass back to @a cont, can be NULL | ||
145 | * @return handle to the blacklist check, NULL if the decision | ||
146 | * was made instantly and @a cont was already called | ||
147 | */ | ||
148 | struct GST_BlacklistCheck * | ||
149 | GST_blacklist_test_allowed (const struct GNUNET_PeerIdentity *peer, | ||
150 | const char *transport_name, | ||
151 | GST_BlacklistTestContinuation cont, | ||
152 | void *cont_cls, | ||
153 | const struct GNUNET_HELLO_Address *address, | ||
154 | struct GNUNET_ATS_Session *session); | ||
155 | |||
156 | |||
157 | /** | ||
158 | * Abort blacklist if @a address and @a session match. | ||
159 | * | ||
160 | * @param address address used to abort matching checks | ||
161 | * @param session session used to abort matching checks | ||
162 | */ | ||
163 | void | ||
164 | GST_blacklist_abort_matching (const struct GNUNET_HELLO_Address *address, | ||
165 | struct GNUNET_ATS_Session *session); | ||
166 | |||
167 | /** | ||
168 | * Cancel a blacklist check. | ||
169 | * | ||
170 | * @param bc check to cancel | ||
171 | */ | ||
172 | void | ||
173 | GST_blacklist_test_cancel (struct GST_BlacklistCheck *bc); | ||
174 | |||
175 | |||
176 | /** | ||
177 | * Function called by the transport for each received message. | ||
178 | * | ||
179 | * @param cls closure, const char* with the name of the plugin we received the message from | ||
180 | * @param address address and (claimed) identity of the other peer | ||
181 | * @param session identifier used for this session (NULL for plugins | ||
182 | * that do not offer bi-directional communication to the sender | ||
183 | * using the same "connection") | ||
184 | * @param message the message, NULL if we only care about | ||
185 | * learning about the delay until we should receive again | ||
186 | * @return how long the plugin should wait until receiving more data | ||
187 | * (plugins that do not support this, can ignore the return value) | ||
188 | */ | ||
189 | struct GNUNET_TIME_Relative | ||
190 | GST_receive_callback (void *cls, | ||
191 | const struct GNUNET_HELLO_Address *address, | ||
192 | struct GNUNET_ATS_Session *session, | ||
193 | const struct GNUNET_MessageHeader *message); | ||
194 | |||
195 | /** | ||
196 | * Broadcast the given message to all of our clients. | ||
197 | * | ||
198 | * @param msg message to broadcast | ||
199 | * @param may_drop #GNUNET_YES if the message can be dropped / is payload | ||
200 | */ | ||
201 | void | ||
202 | GST_clients_broadcast (const struct GNUNET_MessageHeader *msg, | ||
203 | int may_drop); | ||
204 | |||
205 | |||
206 | /** | ||
207 | * Broadcast the new active address to all clients monitoring the peer. | ||
208 | * | ||
209 | * @param peer peer this update is about (never NULL) | ||
210 | * @param address address, NULL on disconnect | ||
211 | * @param state the current state of the peer | ||
212 | * @param state_timeout the time out for the state | ||
213 | */ | ||
214 | void | ||
215 | GST_clients_broadcast_peer_notification (const struct GNUNET_PeerIdentity *peer, | ||
216 | const struct | ||
217 | GNUNET_HELLO_Address *address, | ||
218 | enum GNUNET_TRANSPORT_PeerState state, | ||
219 | struct GNUNET_TIME_Absolute | ||
220 | state_timeout); | ||
221 | |||
222 | |||
223 | /** | ||
224 | * Notify all clients about a disconnect, and cancel | ||
225 | * pending SEND_OK messages for this peer. | ||
226 | * | ||
227 | * @param peer peer that disconnected | ||
228 | */ | ||
229 | void | ||
230 | GST_clients_broadcast_disconnect (const struct GNUNET_PeerIdentity *peer); | ||
231 | |||
232 | |||
233 | #endif | ||
234 | /* end of file gnunet-service-transport_plugins.h */ | ||
diff --git a/src/service/transport/gnunet-transport-certificate-creation.in b/src/service/transport/gnunet-transport-certificate-creation.in new file mode 100644 index 000000000..771422a7a --- /dev/null +++ b/src/service/transport/gnunet-transport-certificate-creation.in | |||
@@ -0,0 +1,158 @@ | |||
1 | #!/bin/sh | ||
2 | # | ||
3 | # This shell script will generate an X509 certificate for | ||
4 | # your gnunet-transport HTTPS | ||
5 | # | ||
6 | # The current version partially reuses and recycles | ||
7 | # code from build.sh by NetBSD (although not entirely | ||
8 | # used because it needs debugging): | ||
9 | # | ||
10 | # Copyright (c) 2001-2011 The NetBSD Foundation, Inc. | ||
11 | # All rights reserved. | ||
12 | # | ||
13 | # This code is derived from software contributed to | ||
14 | # The NetBSD Foundation by Todd Vierling and Luke Mewburn. | ||
15 | |||
16 | # Redistribution and use in source and binary forms, with or | ||
17 | # without modification, are permitted provided that the following | ||
18 | # conditions are met: | ||
19 | # 1. Redistributions of source code must retain the above | ||
20 | # copyright notice, this list of conditions and the following | ||
21 | # disclaimer. | ||
22 | # 2. Redistributions in binary form must reproduce the above | ||
23 | # copyright notice, this list of conditions and the following | ||
24 | # disclaimer in the documentation and/or other materials | ||
25 | # provided with the distribution. | ||
26 | |||
27 | # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND | ||
28 | # CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, | ||
29 | # INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | ||
30 | # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
31 | # DISCLAIMED. | ||
32 | # IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR | ||
33 | # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | ||
34 | # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
35 | # PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
36 | # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | ||
37 | # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
38 | # LIABILITY, OR TORT | ||
39 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF | ||
40 | # THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY | ||
41 | # OF SUCH DAMAGE. | ||
42 | |||
43 | progname=${0##*/} | ||
44 | |||
45 | existence() { | ||
46 | command -v "$1" >/dev/null 2>&1 | ||
47 | } | ||
48 | |||
49 | setdefaults() | ||
50 | { | ||
51 | verbosity=0 | ||
52 | runcmd= | ||
53 | } | ||
54 | |||
55 | statusmsg() | ||
56 | { | ||
57 | ${runcmd} echo " $@" | ||
58 | } | ||
59 | |||
60 | infomsg() | ||
61 | { | ||
62 | if [ x$verbosity = x1 ]; then | ||
63 | statusmsg "INFO: $@" | ||
64 | fi | ||
65 | } | ||
66 | |||
67 | warningmsg() | ||
68 | { | ||
69 | statusmsg "WARNING: $@" | ||
70 | } | ||
71 | |||
72 | errormsg() | ||
73 | { | ||
74 | statusmsg "ERROR: $@" | ||
75 | } | ||
76 | |||
77 | linemsg() | ||
78 | { | ||
79 | statusmsg "=========================================" | ||
80 | } | ||
81 | |||
82 | |||
83 | usage() | ||
84 | { | ||
85 | if [ -n "$*" ]; then | ||
86 | echo "" | ||
87 | echo "${progname}: $*" | ||
88 | fi | ||
89 | cat <<_usage_ | ||
90 | |||
91 | Usage: ${progname} [-hv] [-c FILE] [...] | ||
92 | |||
93 | Options: | ||
94 | -c FILE Use the configuration file FILE. | ||
95 | -h Print this help message. | ||
96 | -v Print the version and exit. | ||
97 | -V be verbose | ||
98 | |||
99 | _usage_ | ||
100 | exit 1 | ||
101 | } | ||
102 | |||
103 | |||
104 | generate_cert_key() | ||
105 | { | ||
106 | echo "" | ||
107 | infomsg "Generating Cert and Key" | ||
108 | |||
109 | CERTTOOL="" | ||
110 | GNUTLS_CA_TEMPLATE=@PKGDATADIRECTORY@/gnunet-gns-proxy-ca.template | ||
111 | OPENSSL=0 | ||
112 | if test -x $(existence gnutls-certtool) | ||
113 | #if test -z "`gnutls-certtool --version`" > /dev/null | ||
114 | then | ||
115 | if test -z "`certtool --version | grep gnutls`" > /dev/null | ||
116 | then | ||
117 | warningmsg "'gnutls-certtool' or 'certtool' command not found. Trying openssl." | ||
118 | # if test -z "`openssl version`" > /dev/null | ||
119 | if test -x $(existence openssl) | ||
120 | then | ||
121 | OPENSSL=1 | ||
122 | else | ||
123 | warningmsg "Install either gnutls certtool or openssl for certificate generation!" | ||
124 | statusmsg "Cleaning up." | ||
125 | exit 1 | ||
126 | fi | ||
127 | fi | ||
128 | CERTTOOL="certtool" | ||
129 | else | ||
130 | CERTTOOL="gnutls-certtool" | ||
131 | fi | ||
132 | mkdir -p `dirname $KEYFILE` | ||
133 | |||
134 | if test 1 -eq $OPENSSL | ||
135 | then | ||
136 | openssl genrsa -out $KEYFILE 1024 | ||
137 | openssl req -batch -days 365 -out $CERTFILE -new -x509 -key $KEYFILE | ||
138 | else | ||
139 | $CERTTOOL --generate-privkey --outfile $KEYFILE 2>/dev/null | ||
140 | $CERTTOOL --template $GNUTLS_CA_TEMPLATE --generate-self-signed --load-privkey $KEYFILE --outfile $CERTFILE 2>/dev/null | ||
141 | fi | ||
142 | } | ||
143 | |||
144 | print_version() | ||
145 | { | ||
146 | GNUNET_ARM_VERSION=`gnunet-arm -v` | ||
147 | echo $GNUNET_ARM_VERSION | ||
148 | } | ||
149 | |||
150 | main() | ||
151 | { | ||
152 | KEYFILE=$1 | ||
153 | CERTFILE=$2 | ||
154 | setdefaults | ||
155 | generate_cert_key | ||
156 | } | ||
157 | |||
158 | main "$@" | ||
diff --git a/src/service/transport/gnunet-transport.c b/src/service/transport/gnunet-transport.c new file mode 100644 index 000000000..b5ad43770 --- /dev/null +++ b/src/service/transport/gnunet-transport.c | |||
@@ -0,0 +1,1437 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2011-2014, 2016, 2017 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file src/transport/gnunet-transport.c | ||
23 | * @brief Tool to help configure, measure and control the transport subsystem. | ||
24 | * @author Christian Grothoff | ||
25 | * @author Nathan Evans | ||
26 | */ | ||
27 | #include "platform.h" | ||
28 | #include "gnunet_util_lib.h" | ||
29 | #include "gnunet_resolver_service.h" | ||
30 | #include "gnunet_protocols.h" | ||
31 | #include "gnunet_transport_service.h" | ||
32 | |||
33 | /** | ||
34 | * Timeout for a name resolution | ||
35 | */ | ||
36 | #define RESOLUTION_TIMEOUT \ | ||
37 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30) | ||
38 | |||
39 | /** | ||
40 | * Timeout for an operation | ||
41 | */ | ||
42 | #define OP_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30) | ||
43 | |||
44 | |||
45 | /** | ||
46 | * Context to store name resolutions for valiation | ||
47 | */ | ||
48 | struct ValidationResolutionContext | ||
49 | { | ||
50 | /** | ||
51 | * Next in DLL | ||
52 | */ | ||
53 | struct ValidationResolutionContext *next; | ||
54 | |||
55 | /** | ||
56 | * Previous in DLL | ||
57 | */ | ||
58 | struct ValidationResolutionContext *prev; | ||
59 | |||
60 | /** | ||
61 | * Address to resolve | ||
62 | */ | ||
63 | struct GNUNET_HELLO_Address *addrcp; | ||
64 | |||
65 | /** | ||
66 | * Time of last validation | ||
67 | */ | ||
68 | struct GNUNET_TIME_Absolute last_validation; | ||
69 | |||
70 | /** | ||
71 | * Address is valid until | ||
72 | */ | ||
73 | struct GNUNET_TIME_Absolute valid_until; | ||
74 | |||
75 | /** | ||
76 | * Time of next validation | ||
77 | */ | ||
78 | struct GNUNET_TIME_Absolute next_validation; | ||
79 | |||
80 | /** | ||
81 | * Transport conversion handle | ||
82 | */ | ||
83 | struct GNUNET_TRANSPORT_AddressToStringContext *asc; | ||
84 | |||
85 | /** | ||
86 | * plugin name | ||
87 | */ | ||
88 | char *transport; | ||
89 | |||
90 | /** | ||
91 | * was the entry printed | ||
92 | */ | ||
93 | int printed; | ||
94 | }; | ||
95 | |||
96 | /** | ||
97 | * Struct to store information about peers in monitor mode | ||
98 | */ | ||
99 | struct MonitoredPeer | ||
100 | { | ||
101 | /** | ||
102 | * State of the peer | ||
103 | */ | ||
104 | enum GNUNET_TRANSPORT_PeerState state; | ||
105 | |||
106 | /** | ||
107 | * Timeout | ||
108 | */ | ||
109 | struct GNUNET_TIME_Absolute state_timeout; | ||
110 | |||
111 | /** | ||
112 | * The address to convert | ||
113 | */ | ||
114 | struct GNUNET_HELLO_Address *address; | ||
115 | }; | ||
116 | |||
117 | /** | ||
118 | * Context to store name resolutions for valiation | ||
119 | */ | ||
120 | struct PeerResolutionContext | ||
121 | { | ||
122 | /** | ||
123 | * Next in DLL | ||
124 | */ | ||
125 | struct PeerResolutionContext *next; | ||
126 | |||
127 | /** | ||
128 | * Prev in DLL | ||
129 | */ | ||
130 | struct PeerResolutionContext *prev; | ||
131 | |||
132 | /** | ||
133 | * address to resolve | ||
134 | */ | ||
135 | struct GNUNET_HELLO_Address *addrcp; | ||
136 | |||
137 | /** | ||
138 | * transport conversiion context | ||
139 | */ | ||
140 | struct GNUNET_TRANSPORT_AddressToStringContext *asc; | ||
141 | |||
142 | /** | ||
143 | * peer state | ||
144 | */ | ||
145 | enum GNUNET_TRANSPORT_PeerState state; | ||
146 | |||
147 | /** | ||
148 | * state timeout | ||
149 | */ | ||
150 | struct GNUNET_TIME_Absolute state_timeout; | ||
151 | |||
152 | /** | ||
153 | * transport plugin | ||
154 | */ | ||
155 | char *transport; | ||
156 | |||
157 | /** | ||
158 | * was the entry printed | ||
159 | */ | ||
160 | int printed; | ||
161 | }; | ||
162 | |||
163 | |||
164 | /** | ||
165 | * Benchmarking block size in KB | ||
166 | */ | ||
167 | #define BLOCKSIZE 4 | ||
168 | |||
169 | /** | ||
170 | * Handle to transport service. | ||
171 | */ | ||
172 | static struct GNUNET_TRANSPORT_CoreHandle *handle; | ||
173 | |||
174 | /** | ||
175 | * Configuration handle | ||
176 | */ | ||
177 | static struct GNUNET_CONFIGURATION_Handle *cfg; | ||
178 | |||
179 | /** | ||
180 | * Blacklisting handle | ||
181 | */ | ||
182 | struct GNUNET_TRANSPORT_Blacklist *blacklist; | ||
183 | |||
184 | /** | ||
185 | * Option -s. | ||
186 | */ | ||
187 | static int benchmark_send; | ||
188 | |||
189 | /** | ||
190 | * Option -b. | ||
191 | */ | ||
192 | static int benchmark_receive; | ||
193 | |||
194 | /** | ||
195 | * Option -l. | ||
196 | */ | ||
197 | static int benchmark_receive; | ||
198 | |||
199 | /** | ||
200 | * Option -i. | ||
201 | */ | ||
202 | static int iterate_connections; | ||
203 | |||
204 | /** | ||
205 | * Option -a. | ||
206 | */ | ||
207 | static int iterate_all; | ||
208 | |||
209 | /** | ||
210 | * Option -c. | ||
211 | */ | ||
212 | static int monitor_connects; | ||
213 | |||
214 | /** | ||
215 | * Option -m. | ||
216 | */ | ||
217 | static int monitor_connections; | ||
218 | |||
219 | /** | ||
220 | * Option -P. | ||
221 | */ | ||
222 | static int monitor_plugins; | ||
223 | |||
224 | /** | ||
225 | * Option -D. | ||
226 | */ | ||
227 | static int do_disconnect; | ||
228 | |||
229 | /** | ||
230 | * Option -n. | ||
231 | */ | ||
232 | static int numeric; | ||
233 | |||
234 | /** | ||
235 | * Global return value (0 success). | ||
236 | */ | ||
237 | static int ret; | ||
238 | |||
239 | /** | ||
240 | * Current number of connections in monitor mode | ||
241 | */ | ||
242 | static int monitor_connect_counter; | ||
243 | |||
244 | /** | ||
245 | * Number of bytes of traffic we received so far. | ||
246 | */ | ||
247 | static unsigned long long traffic_received; | ||
248 | |||
249 | /** | ||
250 | * Number of bytes of traffic we sent so far. | ||
251 | */ | ||
252 | static unsigned long long traffic_sent; | ||
253 | |||
254 | /** | ||
255 | * Starting time of transmitting/receiving data. | ||
256 | */ | ||
257 | static struct GNUNET_TIME_Absolute start_time; | ||
258 | |||
259 | /** | ||
260 | * Map storing information about monitored peers | ||
261 | */ | ||
262 | static struct GNUNET_CONTAINER_MultiPeerMap *monitored_peers; | ||
263 | |||
264 | /** | ||
265 | * Map storing information about monitored plugins's sessions. | ||
266 | */ | ||
267 | static struct GNUNET_CONTAINER_MultiPeerMap *monitored_plugins; | ||
268 | |||
269 | /** | ||
270 | * Handle if we are monitoring peers at the transport level. | ||
271 | */ | ||
272 | static struct GNUNET_TRANSPORT_PeerMonitoringContext *pic; | ||
273 | |||
274 | /** | ||
275 | * Handle if we are monitoring plugin session activity. | ||
276 | */ | ||
277 | static struct GNUNET_TRANSPORT_PluginMonitor *pm; | ||
278 | |||
279 | /** | ||
280 | * Identity of the peer we transmit to / connect to. | ||
281 | * ('-p' command-line option). | ||
282 | */ | ||
283 | static struct GNUNET_PeerIdentity pid; | ||
284 | |||
285 | /** | ||
286 | * Task for operation timeout | ||
287 | */ | ||
288 | static struct GNUNET_SCHEDULER_Task *op_timeout; | ||
289 | |||
290 | /** | ||
291 | * Selected level of verbosity. | ||
292 | */ | ||
293 | static unsigned int verbosity; | ||
294 | |||
295 | /** | ||
296 | * Resolver process handle. | ||
297 | */ | ||
298 | struct GNUNET_OS_Process *resolver; | ||
299 | |||
300 | /** | ||
301 | * Number of address resolutions pending | ||
302 | */ | ||
303 | static unsigned int address_resolutions; | ||
304 | |||
305 | /** | ||
306 | * DLL: head of validation resolution entries | ||
307 | */ | ||
308 | static struct ValidationResolutionContext *vc_head; | ||
309 | |||
310 | /** | ||
311 | * DLL: tail of validation resolution entries | ||
312 | */ | ||
313 | static struct ValidationResolutionContext *vc_tail; | ||
314 | |||
315 | /** | ||
316 | * DLL: head of resolution entries | ||
317 | */ | ||
318 | static struct PeerResolutionContext *rc_head; | ||
319 | |||
320 | /** | ||
321 | * DLL: head of resolution entries | ||
322 | */ | ||
323 | static struct PeerResolutionContext *rc_tail; | ||
324 | |||
325 | |||
326 | /** | ||
327 | * Function called to release data stored in the #monitored_peers map. | ||
328 | * | ||
329 | * @param cls unused | ||
330 | * @param key the peer identity | ||
331 | * @param value a `struct MonitoredPeer` to release | ||
332 | * @return #GNUNET_OK (continue to iterate) | ||
333 | */ | ||
334 | static int | ||
335 | destroy_it (void *cls, const struct GNUNET_PeerIdentity *key, void *value) | ||
336 | { | ||
337 | struct MonitoredPeer *m = value; | ||
338 | |||
339 | GNUNET_assert ( | ||
340 | GNUNET_OK == | ||
341 | GNUNET_CONTAINER_multipeermap_remove (monitored_peers, key, value)); | ||
342 | GNUNET_free (m->address); | ||
343 | GNUNET_free (value); | ||
344 | return GNUNET_OK; | ||
345 | } | ||
346 | |||
347 | |||
348 | /** | ||
349 | * Task run in monitor mode when the user presses CTRL-C to abort. | ||
350 | * Stops monitoring activity. | ||
351 | * | ||
352 | * @param cls NULL | ||
353 | */ | ||
354 | static void | ||
355 | shutdown_task (void *cls) | ||
356 | { | ||
357 | struct GNUNET_TIME_Relative duration; | ||
358 | struct ValidationResolutionContext *cur; | ||
359 | struct ValidationResolutionContext *next; | ||
360 | struct PeerResolutionContext *rc; | ||
361 | |||
362 | if (NULL != op_timeout) | ||
363 | { | ||
364 | GNUNET_SCHEDULER_cancel (op_timeout); | ||
365 | op_timeout = NULL; | ||
366 | } | ||
367 | if (NULL != pic) | ||
368 | { | ||
369 | GNUNET_TRANSPORT_monitor_peers_cancel (pic); | ||
370 | pic = NULL; | ||
371 | } | ||
372 | if (NULL != pm) | ||
373 | { | ||
374 | GNUNET_TRANSPORT_monitor_plugins_cancel (pm); | ||
375 | pm = NULL; | ||
376 | } | ||
377 | |||
378 | next = vc_head; | ||
379 | for (cur = next; NULL != cur; cur = next) | ||
380 | { | ||
381 | next = cur->next; | ||
382 | |||
383 | GNUNET_TRANSPORT_address_to_string_cancel (cur->asc); | ||
384 | GNUNET_CONTAINER_DLL_remove (vc_head, vc_tail, cur); | ||
385 | GNUNET_free (cur->transport); | ||
386 | GNUNET_HELLO_address_free (cur->addrcp); | ||
387 | GNUNET_free (cur); | ||
388 | } | ||
389 | while (NULL != (rc = rc_head)) | ||
390 | { | ||
391 | GNUNET_CONTAINER_DLL_remove (rc_head, rc_tail, rc); | ||
392 | GNUNET_TRANSPORT_address_to_string_cancel (rc->asc); | ||
393 | GNUNET_free (rc->transport); | ||
394 | GNUNET_free (rc->addrcp); | ||
395 | GNUNET_free (rc); | ||
396 | } | ||
397 | if (NULL != handle) | ||
398 | { | ||
399 | GNUNET_TRANSPORT_core_disconnect (handle); | ||
400 | handle = NULL; | ||
401 | } | ||
402 | if (benchmark_send) | ||
403 | { | ||
404 | duration = GNUNET_TIME_absolute_get_duration (start_time); | ||
405 | fprintf (stdout, | ||
406 | _ ("Transmitted %llu bytes/s (%llu bytes in %s)\n"), | ||
407 | 1000LL * 1000LL * traffic_sent / (1 + duration.rel_value_us), | ||
408 | traffic_sent, | ||
409 | GNUNET_STRINGS_relative_time_to_string (duration, GNUNET_YES)); | ||
410 | } | ||
411 | if (benchmark_receive) | ||
412 | { | ||
413 | duration = GNUNET_TIME_absolute_get_duration (start_time); | ||
414 | fprintf (stdout, | ||
415 | _ ("Received %llu bytes/s (%llu bytes in %s)\n"), | ||
416 | 1000LL * 1000LL * traffic_received / (1 + duration.rel_value_us), | ||
417 | traffic_received, | ||
418 | GNUNET_STRINGS_relative_time_to_string (duration, GNUNET_YES)); | ||
419 | } | ||
420 | |||
421 | if (NULL != monitored_peers) | ||
422 | { | ||
423 | GNUNET_CONTAINER_multipeermap_iterate (monitored_peers, &destroy_it, NULL); | ||
424 | GNUNET_CONTAINER_multipeermap_destroy (monitored_peers); | ||
425 | monitored_peers = NULL; | ||
426 | } | ||
427 | if (NULL != monitored_plugins) | ||
428 | { | ||
429 | GNUNET_break (0 == GNUNET_CONTAINER_multipeermap_size (monitored_plugins)); | ||
430 | GNUNET_CONTAINER_multipeermap_destroy (monitored_plugins); | ||
431 | monitored_plugins = NULL; | ||
432 | } | ||
433 | if (NULL != blacklist) | ||
434 | { | ||
435 | GNUNET_TRANSPORT_blacklist_cancel (blacklist); | ||
436 | blacklist = NULL; | ||
437 | ret = 0; | ||
438 | } | ||
439 | } | ||
440 | |||
441 | |||
442 | /** | ||
443 | * We are done, shut down. | ||
444 | */ | ||
445 | static void | ||
446 | operation_timeout (void *cls) | ||
447 | { | ||
448 | struct PeerResolutionContext *cur; | ||
449 | struct PeerResolutionContext *next; | ||
450 | |||
451 | op_timeout = NULL; | ||
452 | if ((benchmark_send) || (benchmark_receive)) | ||
453 | { | ||
454 | fprintf (stdout, _ ("Failed to connect to `%s'\n"), GNUNET_i2s_full (&pid)); | ||
455 | GNUNET_SCHEDULER_shutdown (); | ||
456 | ret = 1; | ||
457 | return; | ||
458 | } | ||
459 | if (iterate_connections) | ||
460 | { | ||
461 | next = rc_head; | ||
462 | while (NULL != (cur = next)) | ||
463 | { | ||
464 | next = cur->next; | ||
465 | fprintf (stdout, | ||
466 | _ ("Failed to resolve address for peer `%s'\n"), | ||
467 | GNUNET_i2s (&cur->addrcp->peer)); | ||
468 | |||
469 | GNUNET_CONTAINER_DLL_remove (rc_head, rc_tail, cur); | ||
470 | GNUNET_TRANSPORT_address_to_string_cancel (cur->asc); | ||
471 | GNUNET_free (cur->transport); | ||
472 | GNUNET_free (cur->addrcp); | ||
473 | GNUNET_free (cur); | ||
474 | } | ||
475 | fprintf (stdout, | ||
476 | "%s", | ||
477 | _ ("Failed to list connections, timeout occurred\n")); | ||
478 | GNUNET_SCHEDULER_shutdown (); | ||
479 | ret = 1; | ||
480 | return; | ||
481 | } | ||
482 | } | ||
483 | |||
484 | |||
485 | /** | ||
486 | * Function called to notify a client about the socket | ||
487 | * begin ready to queue more data. Sends another message. | ||
488 | * | ||
489 | * @param cls closure with the message queue | ||
490 | */ | ||
491 | static void | ||
492 | do_send (void *cls) | ||
493 | { | ||
494 | struct GNUNET_MQ_Handle *mq = cls; | ||
495 | struct GNUNET_MessageHeader *m; | ||
496 | struct GNUNET_MQ_Envelope *env; | ||
497 | |||
498 | env = GNUNET_MQ_msg_extra (m, BLOCKSIZE * 1024, GNUNET_MESSAGE_TYPE_DUMMY); | ||
499 | memset (&m[1], 52, BLOCKSIZE * 1024 - sizeof(struct GNUNET_MessageHeader)); | ||
500 | traffic_sent += BLOCKSIZE * 1024; | ||
501 | GNUNET_MQ_notify_sent (env, &do_send, mq); | ||
502 | if (verbosity > 0) | ||
503 | fprintf (stdout, | ||
504 | _ ("Transmitting %u bytes\n"), | ||
505 | (unsigned int) BLOCKSIZE * 1024); | ||
506 | GNUNET_MQ_send (mq, env); | ||
507 | } | ||
508 | |||
509 | |||
510 | /** | ||
511 | * Function called to notify transport users that another | ||
512 | * peer connected to us. | ||
513 | * | ||
514 | * @param cls closure | ||
515 | * @param peer the peer that connected | ||
516 | * @param mq message queue for sending to @a peer | ||
517 | */ | ||
518 | static void * | ||
519 | notify_connect (void *cls, | ||
520 | const struct GNUNET_PeerIdentity *peer, | ||
521 | struct GNUNET_MQ_Handle *mq) | ||
522 | { | ||
523 | if (0 != memcmp (&pid, peer, sizeof(struct GNUNET_PeerIdentity))) | ||
524 | return NULL; | ||
525 | ret = 0; | ||
526 | if (! benchmark_send) | ||
527 | return NULL; | ||
528 | if (NULL != op_timeout) | ||
529 | { | ||
530 | GNUNET_SCHEDULER_cancel (op_timeout); | ||
531 | op_timeout = NULL; | ||
532 | } | ||
533 | if (verbosity > 0) | ||
534 | fprintf ( | ||
535 | stdout, | ||
536 | _ ( | ||
537 | "Successfully connected to `%s', starting to send benchmark data in %u Kb blocks\n"), | ||
538 | GNUNET_i2s (peer), | ||
539 | BLOCKSIZE); | ||
540 | start_time = GNUNET_TIME_absolute_get (); | ||
541 | do_send (mq); | ||
542 | return mq; | ||
543 | } | ||
544 | |||
545 | |||
546 | /** | ||
547 | * Function called to notify transport users that another | ||
548 | * peer disconnected from us. | ||
549 | * | ||
550 | * @param cls closure | ||
551 | * @param peer the peer that disconnected | ||
552 | * @param internal_cls what we returned from #notify_connect() | ||
553 | */ | ||
554 | static void | ||
555 | notify_disconnect (void *cls, | ||
556 | const struct GNUNET_PeerIdentity *peer, | ||
557 | void *internal_cls) | ||
558 | { | ||
559 | if (0 != memcmp (&pid, peer, sizeof(struct GNUNET_PeerIdentity))) | ||
560 | return; | ||
561 | if (NULL == internal_cls) | ||
562 | return; /* not about target peer */ | ||
563 | if (! benchmark_send) | ||
564 | return; /* not transmitting */ | ||
565 | fprintf (stdout, | ||
566 | _ ("Disconnected from peer `%s' while benchmarking\n"), | ||
567 | GNUNET_i2s (&pid)); | ||
568 | } | ||
569 | |||
570 | |||
571 | /** | ||
572 | * Function called to notify transport users that another | ||
573 | * peer connected to us. | ||
574 | * | ||
575 | * @param cls closure | ||
576 | * @param peer the peer that connected | ||
577 | * @param mq for sending messages to @a peer | ||
578 | * @return NULL | ||
579 | */ | ||
580 | static void * | ||
581 | monitor_notify_connect (void *cls, | ||
582 | const struct GNUNET_PeerIdentity *peer, | ||
583 | struct GNUNET_MQ_Handle *mq) | ||
584 | { | ||
585 | struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get (); | ||
586 | const char *now_str = GNUNET_STRINGS_absolute_time_to_string (now); | ||
587 | |||
588 | monitor_connect_counter++; | ||
589 | fprintf (stdout, | ||
590 | _ ("%24s: %-17s %4s (%u connections in total)\n"), | ||
591 | now_str, | ||
592 | _ ("Connected to"), | ||
593 | GNUNET_i2s (peer), | ||
594 | monitor_connect_counter); | ||
595 | return NULL; | ||
596 | } | ||
597 | |||
598 | |||
599 | /** | ||
600 | * Function called to notify transport users that another | ||
601 | * peer disconnected from us. | ||
602 | * | ||
603 | * @param cls closure | ||
604 | * @param peer the peer that disconnected | ||
605 | * @param internal_cls what we returned from #monitor_notify_connect() | ||
606 | */ | ||
607 | static void | ||
608 | monitor_notify_disconnect (void *cls, | ||
609 | const struct GNUNET_PeerIdentity *peer, | ||
610 | void *internal_cls) | ||
611 | { | ||
612 | struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get (); | ||
613 | const char *now_str = GNUNET_STRINGS_absolute_time_to_string (now); | ||
614 | |||
615 | GNUNET_assert (monitor_connect_counter > 0); | ||
616 | monitor_connect_counter--; | ||
617 | |||
618 | fprintf (stdout, | ||
619 | _ ("%24s: %-17s %4s (%u connections in total)\n"), | ||
620 | now_str, | ||
621 | _ ("Disconnected from"), | ||
622 | GNUNET_i2s (peer), | ||
623 | monitor_connect_counter); | ||
624 | } | ||
625 | |||
626 | |||
627 | /** | ||
628 | * Function called by the transport for each received message. | ||
629 | * | ||
630 | * @param cls closure | ||
631 | * @param message the message | ||
632 | * @return #GNUNET_OK | ||
633 | */ | ||
634 | static int | ||
635 | check_dummy (void *cls, const struct GNUNET_MessageHeader *message) | ||
636 | { | ||
637 | return GNUNET_OK; /* all messages are fine */ | ||
638 | } | ||
639 | |||
640 | |||
641 | /** | ||
642 | * Function called by the transport for each received message. | ||
643 | * | ||
644 | * @param cls closure | ||
645 | * @param message the message | ||
646 | */ | ||
647 | static void | ||
648 | handle_dummy (void *cls, const struct GNUNET_MessageHeader *message) | ||
649 | { | ||
650 | if (! benchmark_receive) | ||
651 | return; | ||
652 | if (verbosity > 0) | ||
653 | fprintf (stdout, | ||
654 | _ ("Received %u bytes\n"), | ||
655 | (unsigned int) ntohs (message->size)); | ||
656 | if (0 == traffic_received) | ||
657 | start_time = GNUNET_TIME_absolute_get (); | ||
658 | traffic_received += ntohs (message->size); | ||
659 | } | ||
660 | |||
661 | |||
662 | /** | ||
663 | * Convert address to a printable format. | ||
664 | * | ||
665 | * @param address the address | ||
666 | * @param numeric #GNUNET_YES to convert to numeric format, #GNUNET_NO | ||
667 | * to try to use reverse DNS | ||
668 | * @param state state the peer is in | ||
669 | * @param state_timeout when will the peer's state expire | ||
670 | */ | ||
671 | static void | ||
672 | resolve_peer_address (const struct GNUNET_HELLO_Address *address, | ||
673 | int numeric, | ||
674 | enum GNUNET_TRANSPORT_PeerState state, | ||
675 | struct GNUNET_TIME_Absolute state_timeout); | ||
676 | |||
677 | |||
678 | static void | ||
679 | print_info (const struct GNUNET_PeerIdentity *id, | ||
680 | const char *transport, | ||
681 | const char *addr, | ||
682 | enum GNUNET_TRANSPORT_PeerState state, | ||
683 | struct GNUNET_TIME_Absolute state_timeout) | ||
684 | { | ||
685 | if (((GNUNET_YES == iterate_connections) && (GNUNET_YES == iterate_all)) || | ||
686 | (GNUNET_YES == monitor_connections)) | ||
687 | { | ||
688 | fprintf (stdout, | ||
689 | _ ("Peer `%s': %s %s in state `%s' until %s\n"), | ||
690 | GNUNET_i2s (id), | ||
691 | (NULL == transport) ? "<none>" : transport, | ||
692 | (NULL == transport) ? "<none>" : addr, | ||
693 | GNUNET_TRANSPORT_ps2s (state), | ||
694 | GNUNET_STRINGS_absolute_time_to_string (state_timeout)); | ||
695 | } | ||
696 | else if ((GNUNET_YES == iterate_connections) && | ||
697 | (GNUNET_TRANSPORT_is_connected (state))) | ||
698 | { | ||
699 | /* Only connected peers, skip state */ | ||
700 | fprintf (stdout, | ||
701 | _ ("Peer `%s': %s %s\n"), | ||
702 | GNUNET_i2s (id), | ||
703 | transport, | ||
704 | addr); | ||
705 | } | ||
706 | } | ||
707 | |||
708 | |||
709 | /** | ||
710 | * Function called with a textual representation of an address. This | ||
711 | * function will be called several times with different possible | ||
712 | * textual representations, and a last time with @a address being NULL | ||
713 | * to signal the end of the iteration. Note that @a address NULL | ||
714 | * always is the last call, regardless of the value in @a res. | ||
715 | * | ||
716 | * @param cls closure | ||
717 | * @param address NULL on end of iteration, | ||
718 | * otherwise 0-terminated printable UTF-8 string, | ||
719 | * in particular an empty string if @a res is #GNUNET_NO | ||
720 | * @param res result of the address to string conversion: | ||
721 | * if #GNUNET_OK: conversion successful | ||
722 | * if #GNUNET_NO: address was invalid (or not supported) | ||
723 | * if #GNUNET_SYSERR: communication error (IPC error) | ||
724 | */ | ||
725 | static void | ||
726 | process_peer_string (void *cls, const char *address, int res) | ||
727 | { | ||
728 | struct PeerResolutionContext *rc = cls; | ||
729 | |||
730 | if (NULL != address) | ||
731 | { | ||
732 | if (GNUNET_SYSERR == res) | ||
733 | { | ||
734 | fprintf ( | ||
735 | stderr, | ||
736 | "Failed to convert address for peer `%s' plugin `%s' length %u to string \n", | ||
737 | GNUNET_i2s (&rc->addrcp->peer), | ||
738 | rc->addrcp->transport_name, | ||
739 | (unsigned int) rc->addrcp->address_length); | ||
740 | print_info (&rc->addrcp->peer, | ||
741 | rc->transport, | ||
742 | NULL, | ||
743 | rc->state, | ||
744 | rc->state_timeout); | ||
745 | rc->printed = GNUNET_YES; | ||
746 | return; | ||
747 | } | ||
748 | if (GNUNET_OK == res) | ||
749 | { | ||
750 | print_info (&rc->addrcp->peer, | ||
751 | rc->transport, | ||
752 | address, | ||
753 | rc->state, | ||
754 | rc->state_timeout); | ||
755 | rc->printed = GNUNET_YES; | ||
756 | return; /* Wait for done call */ | ||
757 | } | ||
758 | /* GNUNET_NO == res: ignore, was simply not supported */ | ||
759 | return; | ||
760 | } | ||
761 | /* NULL == address, last call, we are done */ | ||
762 | |||
763 | rc->asc = NULL; | ||
764 | GNUNET_assert (address_resolutions > 0); | ||
765 | address_resolutions--; | ||
766 | if (GNUNET_NO == rc->printed) | ||
767 | { | ||
768 | if (numeric == GNUNET_NO) | ||
769 | { | ||
770 | /* Failed to resolve address, try numeric lookup | ||
771 | (note: this should not be needed, as transport | ||
772 | should fallback to numeric conversion if DNS takes | ||
773 | too long) */ | ||
774 | resolve_peer_address (rc->addrcp, | ||
775 | GNUNET_YES, | ||
776 | rc->state, | ||
777 | rc->state_timeout); | ||
778 | } | ||
779 | else | ||
780 | { | ||
781 | print_info (&rc->addrcp->peer, | ||
782 | rc->transport, | ||
783 | NULL, | ||
784 | rc->state, | ||
785 | rc->state_timeout); | ||
786 | } | ||
787 | } | ||
788 | GNUNET_free (rc->transport); | ||
789 | GNUNET_free (rc->addrcp); | ||
790 | GNUNET_CONTAINER_DLL_remove (rc_head, rc_tail, rc); | ||
791 | GNUNET_free (rc); | ||
792 | if ((0 == address_resolutions) && (iterate_connections)) | ||
793 | { | ||
794 | if (NULL != op_timeout) | ||
795 | { | ||
796 | GNUNET_SCHEDULER_cancel (op_timeout); | ||
797 | op_timeout = NULL; | ||
798 | } | ||
799 | ret = 0; | ||
800 | GNUNET_SCHEDULER_shutdown (); | ||
801 | } | ||
802 | } | ||
803 | |||
804 | |||
805 | /** | ||
806 | * Convert address to a printable format and print it | ||
807 | * together with the given state data. | ||
808 | * | ||
809 | * @param address the address | ||
810 | * @param numeric #GNUNET_YES to convert to numeric format, #GNUNET_NO | ||
811 | * to try to use reverse DNS | ||
812 | * @param state state the peer is in | ||
813 | * @param state_timeout when will the peer's state expire | ||
814 | */ | ||
815 | static void | ||
816 | resolve_peer_address (const struct GNUNET_HELLO_Address *address, | ||
817 | int numeric, | ||
818 | enum GNUNET_TRANSPORT_PeerState state, | ||
819 | struct GNUNET_TIME_Absolute state_timeout) | ||
820 | { | ||
821 | struct PeerResolutionContext *rc; | ||
822 | |||
823 | rc = GNUNET_new (struct PeerResolutionContext); | ||
824 | GNUNET_CONTAINER_DLL_insert (rc_head, rc_tail, rc); | ||
825 | address_resolutions++; | ||
826 | rc->transport = GNUNET_strdup (address->transport_name); | ||
827 | rc->addrcp = GNUNET_HELLO_address_copy (address); | ||
828 | rc->printed = GNUNET_NO; | ||
829 | rc->state = state; | ||
830 | rc->state_timeout = state_timeout; | ||
831 | /* Resolve address to string */ | ||
832 | rc->asc = GNUNET_TRANSPORT_address_to_string (cfg, | ||
833 | address, | ||
834 | numeric, | ||
835 | RESOLUTION_TIMEOUT, | ||
836 | &process_peer_string, | ||
837 | rc); | ||
838 | } | ||
839 | |||
840 | |||
841 | /** | ||
842 | * Function called with information about a peers during a one shot iteration | ||
843 | * | ||
844 | * @param cls closure | ||
845 | * @param peer identity of the peer, NULL for final callback when operation done | ||
846 | * @param address binary address used to communicate with this peer, | ||
847 | * NULL on disconnect or when done | ||
848 | * @param state current state this peer is in | ||
849 | * @param state_timeout time out for the current state | ||
850 | */ | ||
851 | static void | ||
852 | process_peer_iteration_cb (void *cls, | ||
853 | const struct GNUNET_PeerIdentity *peer, | ||
854 | const struct GNUNET_HELLO_Address *address, | ||
855 | enum GNUNET_TRANSPORT_PeerState state, | ||
856 | struct GNUNET_TIME_Absolute state_timeout) | ||
857 | { | ||
858 | if (NULL == peer) | ||
859 | { | ||
860 | /* done */ | ||
861 | pic = NULL; | ||
862 | return; | ||
863 | } | ||
864 | |||
865 | if ((GNUNET_NO == iterate_all) && | ||
866 | (GNUNET_NO == GNUNET_TRANSPORT_is_connected (state))) | ||
867 | return; /* Display only connected peers */ | ||
868 | |||
869 | if (NULL != op_timeout) | ||
870 | GNUNET_SCHEDULER_cancel (op_timeout); | ||
871 | op_timeout = | ||
872 | GNUNET_SCHEDULER_add_delayed (OP_TIMEOUT, &operation_timeout, NULL); | ||
873 | |||
874 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
875 | "Received address for peer `%s': %s\n", | ||
876 | GNUNET_i2s (peer), | ||
877 | address ? address->transport_name : ""); | ||
878 | |||
879 | if (NULL != address) | ||
880 | resolve_peer_address (address, numeric, state, state_timeout); | ||
881 | else | ||
882 | print_info (peer, NULL, NULL, state, state_timeout); | ||
883 | } | ||
884 | |||
885 | |||
886 | /** | ||
887 | * Context for address resolution by #plugin_monitoring_cb(). | ||
888 | */ | ||
889 | struct PluginMonitorAddress | ||
890 | { | ||
891 | /** | ||
892 | * Ongoing resolution request. | ||
893 | */ | ||
894 | struct GNUNET_TRANSPORT_AddressToStringContext *asc; | ||
895 | |||
896 | /** | ||
897 | * Resolved address as string. | ||
898 | */ | ||
899 | char *str; | ||
900 | |||
901 | /** | ||
902 | * Last event we got and did not yet print because | ||
903 | * @e str was NULL (address not yet resolved). | ||
904 | */ | ||
905 | struct GNUNET_TRANSPORT_SessionInfo si; | ||
906 | }; | ||
907 | |||
908 | |||
909 | /** | ||
910 | * Print information about a plugin monitoring event. | ||
911 | * | ||
912 | * @param addr out internal context | ||
913 | * @param info the monitoring information | ||
914 | */ | ||
915 | static void | ||
916 | print_plugin_event_info (struct PluginMonitorAddress *addr, | ||
917 | const struct GNUNET_TRANSPORT_SessionInfo *info) | ||
918 | { | ||
919 | const char *state; | ||
920 | |||
921 | switch (info->state) | ||
922 | { | ||
923 | case GNUNET_TRANSPORT_SS_INIT: | ||
924 | state = "INIT"; | ||
925 | break; | ||
926 | |||
927 | case GNUNET_TRANSPORT_SS_HANDSHAKE: | ||
928 | state = "HANDSHAKE"; | ||
929 | break; | ||
930 | |||
931 | case GNUNET_TRANSPORT_SS_UP: | ||
932 | state = "UP"; | ||
933 | break; | ||
934 | |||
935 | case GNUNET_TRANSPORT_SS_UPDATE: | ||
936 | state = "UPDATE"; | ||
937 | break; | ||
938 | |||
939 | case GNUNET_TRANSPORT_SS_DONE: | ||
940 | state = "DONE"; | ||
941 | break; | ||
942 | |||
943 | default: | ||
944 | state = "UNKNOWN"; | ||
945 | break; | ||
946 | } | ||
947 | fprintf (stdout, | ||
948 | "%s: state %s timeout in %s @ %s%s\n", | ||
949 | GNUNET_i2s (&info->address->peer), | ||
950 | state, | ||
951 | GNUNET_STRINGS_relative_time_to_string ( | ||
952 | GNUNET_TIME_absolute_get_remaining (info->session_timeout), | ||
953 | GNUNET_YES), | ||
954 | addr->str, | ||
955 | (info->is_inbound == GNUNET_YES) ? " (INBOUND)" : ""); | ||
956 | fprintf (stdout, | ||
957 | "%s: queue has %3u messages and %6u bytes\n", | ||
958 | GNUNET_i2s (&info->address->peer), | ||
959 | info->num_msg_pending, | ||
960 | info->num_bytes_pending); | ||
961 | if (0 != | ||
962 | GNUNET_TIME_absolute_get_remaining (info->receive_delay).rel_value_us) | ||
963 | fprintf (stdout, | ||
964 | "%s: receiving blocked until %s\n", | ||
965 | GNUNET_i2s (&info->address->peer), | ||
966 | GNUNET_STRINGS_absolute_time_to_string (info->receive_delay)); | ||
967 | } | ||
968 | |||
969 | |||
970 | /** | ||
971 | * Function called with a textual representation of an address. This | ||
972 | * function will be called several times with different possible | ||
973 | * textual representations, and a last time with @a address being NULL | ||
974 | * to signal the end of the iteration. Note that @a address NULL | ||
975 | * always is the last call, regardless of the value in @a res. | ||
976 | * | ||
977 | * @param cls closure | ||
978 | * @param address NULL on end of iteration, | ||
979 | * otherwise 0-terminated printable UTF-8 string, | ||
980 | * in particular an empty string if @a res is #GNUNET_NO | ||
981 | * @param res result of the address to string conversion: | ||
982 | * if #GNUNET_OK: conversion successful | ||
983 | * if #GNUNET_NO: address was invalid (or not supported) | ||
984 | * if #GNUNET_SYSERR: communication error (IPC error) | ||
985 | */ | ||
986 | static void | ||
987 | address_cb (void *cls, const char *address, int res) | ||
988 | { | ||
989 | struct PluginMonitorAddress *addr = cls; | ||
990 | |||
991 | if (NULL == address) | ||
992 | { | ||
993 | addr->asc = NULL; | ||
994 | return; | ||
995 | } | ||
996 | if (NULL != addr->str) | ||
997 | return; | ||
998 | addr->str = GNUNET_strdup (address); | ||
999 | print_plugin_event_info (addr, &addr->si); | ||
1000 | } | ||
1001 | |||
1002 | |||
1003 | /** | ||
1004 | * Function called by the plugin with information about the | ||
1005 | * current sessions managed by the plugin (for monitoring). | ||
1006 | * | ||
1007 | * @param cls closure (NULL) | ||
1008 | * @param session session handle this information is about, | ||
1009 | * NULL to indicate that we are "in sync" (initial | ||
1010 | * iteration complete) | ||
1011 | * @param session_ctx storage location where the application | ||
1012 | * can store data; will point to NULL on #GNUNET_TRANSPORT_SS_INIT, | ||
1013 | * and must be reset to NULL on #GNUNET_TRANSPORT_SS_DONE | ||
1014 | * @param info information about the state of the session, | ||
1015 | * NULL if @a session is also NULL and we are | ||
1016 | * merely signalling that the initial iteration is over; | ||
1017 | * NULL with @a session being non-NULL if the monitor | ||
1018 | * was being cancelled while sessions were active | ||
1019 | */ | ||
1020 | static void | ||
1021 | plugin_monitoring_cb (void *cls, | ||
1022 | struct GNUNET_TRANSPORT_PluginSession *session, | ||
1023 | void **session_ctx, | ||
1024 | const struct GNUNET_TRANSPORT_SessionInfo *info) | ||
1025 | { | ||
1026 | struct PluginMonitorAddress *addr; | ||
1027 | |||
1028 | if ((NULL == info) && (NULL == session)) | ||
1029 | return; /* in sync with transport service */ | ||
1030 | addr = *session_ctx; | ||
1031 | if (NULL == info) | ||
1032 | { | ||
1033 | if (NULL != addr) | ||
1034 | { | ||
1035 | if (NULL != addr->asc) | ||
1036 | { | ||
1037 | GNUNET_TRANSPORT_address_to_string_cancel (addr->asc); | ||
1038 | addr->asc = NULL; | ||
1039 | } | ||
1040 | GNUNET_free (addr->str); | ||
1041 | GNUNET_free (addr); | ||
1042 | *session_ctx = NULL; | ||
1043 | } | ||
1044 | return; /* shutdown */ | ||
1045 | } | ||
1046 | if (0 != | ||
1047 | memcmp (&info->address->peer, &pid, sizeof(struct GNUNET_PeerIdentity))) | ||
1048 | return; /* filtered */ | ||
1049 | if (NULL == addr) | ||
1050 | { | ||
1051 | addr = GNUNET_new (struct PluginMonitorAddress); | ||
1052 | addr->asc = | ||
1053 | GNUNET_TRANSPORT_address_to_string (cfg, | ||
1054 | info->address, | ||
1055 | numeric, | ||
1056 | GNUNET_TIME_UNIT_FOREVER_REL, | ||
1057 | &address_cb, | ||
1058 | addr); | ||
1059 | *session_ctx = addr; | ||
1060 | } | ||
1061 | if (NULL == addr->str) | ||
1062 | addr->si = *info; | ||
1063 | else | ||
1064 | print_plugin_event_info (addr, info); | ||
1065 | if (GNUNET_TRANSPORT_SS_DONE == info->state) | ||
1066 | { | ||
1067 | if (NULL != addr->asc) | ||
1068 | { | ||
1069 | GNUNET_TRANSPORT_address_to_string_cancel (addr->asc); | ||
1070 | addr->asc = NULL; | ||
1071 | } | ||
1072 | GNUNET_free (addr->str); | ||
1073 | GNUNET_free (addr); | ||
1074 | *session_ctx = NULL; | ||
1075 | } | ||
1076 | } | ||
1077 | |||
1078 | |||
1079 | /** | ||
1080 | * Function called with information about a peers | ||
1081 | * | ||
1082 | * @param cls closure, NULL | ||
1083 | * @param peer identity of the peer, NULL for final callback when operation done | ||
1084 | * @param address binary address used to communicate with this peer, | ||
1085 | * NULL on disconnect or when done | ||
1086 | * @param state current state this peer is in | ||
1087 | * @param state_timeout time out for the current state | ||
1088 | */ | ||
1089 | static void | ||
1090 | process_peer_monitoring_cb (void *cls, | ||
1091 | const struct GNUNET_PeerIdentity *peer, | ||
1092 | const struct GNUNET_HELLO_Address *address, | ||
1093 | enum GNUNET_TRANSPORT_PeerState state, | ||
1094 | struct GNUNET_TIME_Absolute state_timeout) | ||
1095 | { | ||
1096 | struct MonitoredPeer *m; | ||
1097 | |||
1098 | if (NULL == peer) | ||
1099 | { | ||
1100 | fprintf (stdout, | ||
1101 | "%s", | ||
1102 | _ ( | ||
1103 | "Monitor disconnected from transport service. Reconnecting.\n")); | ||
1104 | return; | ||
1105 | } | ||
1106 | |||
1107 | if (NULL != op_timeout) | ||
1108 | GNUNET_SCHEDULER_cancel (op_timeout); | ||
1109 | op_timeout = | ||
1110 | GNUNET_SCHEDULER_add_delayed (OP_TIMEOUT, &operation_timeout, NULL); | ||
1111 | |||
1112 | if (NULL == (m = GNUNET_CONTAINER_multipeermap_get (monitored_peers, peer))) | ||
1113 | { | ||
1114 | m = GNUNET_new (struct MonitoredPeer); | ||
1115 | GNUNET_CONTAINER_multipeermap_put ( | ||
1116 | monitored_peers, | ||
1117 | peer, | ||
1118 | m, | ||
1119 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST); | ||
1120 | } | ||
1121 | else | ||
1122 | { | ||
1123 | if ((m->state == state) && | ||
1124 | (m->state_timeout.abs_value_us == state_timeout.abs_value_us) && | ||
1125 | (NULL == address) && (NULL == m->address)) | ||
1126 | { | ||
1127 | return; /* No real change */ | ||
1128 | } | ||
1129 | if ((m->state == state) && (NULL != address) && (NULL != m->address) && | ||
1130 | (0 == GNUNET_HELLO_address_cmp (m->address, address))) | ||
1131 | return; /* No real change */ | ||
1132 | } | ||
1133 | |||
1134 | if (NULL != m->address) | ||
1135 | { | ||
1136 | GNUNET_free (m->address); | ||
1137 | m->address = NULL; | ||
1138 | } | ||
1139 | if (NULL != address) | ||
1140 | m->address = GNUNET_HELLO_address_copy (address); | ||
1141 | m->state = state; | ||
1142 | m->state_timeout = state_timeout; | ||
1143 | |||
1144 | if (NULL != address) | ||
1145 | resolve_peer_address (m->address, numeric, m->state, m->state_timeout); | ||
1146 | else | ||
1147 | print_info (peer, NULL, NULL, m->state, m->state_timeout); | ||
1148 | } | ||
1149 | |||
1150 | |||
1151 | /** | ||
1152 | * Function called with the transport service checking if we | ||
1153 | * want to blacklist a peer. Return #GNUNET_SYSERR for the | ||
1154 | * peer that we should disconnect from. | ||
1155 | * | ||
1156 | * @param cls NULL | ||
1157 | * @param cpid peer to check blacklisting for | ||
1158 | * @return #GNUNET_OK if the connection is allowed, #GNUNET_SYSERR if not | ||
1159 | */ | ||
1160 | static int | ||
1161 | blacklist_cb (void *cls, const struct GNUNET_PeerIdentity *cpid) | ||
1162 | { | ||
1163 | if (0 == memcmp (cpid, &pid, sizeof(struct GNUNET_PeerIdentity))) | ||
1164 | return GNUNET_SYSERR; | ||
1165 | return GNUNET_OK; | ||
1166 | } | ||
1167 | |||
1168 | |||
1169 | /** | ||
1170 | * Main function that will be run by the scheduler. | ||
1171 | * | ||
1172 | * @param cls closure | ||
1173 | * @param args remaining command-line arguments | ||
1174 | * @param cfgfile name of the configuration file used (for saving, can be NULL!) | ||
1175 | * @param mycfg configuration | ||
1176 | */ | ||
1177 | static void | ||
1178 | run (void *cls, | ||
1179 | char *const *args, | ||
1180 | const char *cfgfile, | ||
1181 | const struct GNUNET_CONFIGURATION_Handle *mycfg) | ||
1182 | { | ||
1183 | static struct GNUNET_PeerIdentity zero_pid; | ||
1184 | int counter = 0; | ||
1185 | |||
1186 | ret = 1; | ||
1187 | |||
1188 | cfg = (struct GNUNET_CONFIGURATION_Handle *) mycfg; | ||
1189 | |||
1190 | counter = benchmark_send + benchmark_receive + iterate_connections | ||
1191 | + monitor_connections + monitor_connects + do_disconnect | ||
1192 | + monitor_plugins; | ||
1193 | |||
1194 | if (1 < counter) | ||
1195 | { | ||
1196 | fprintf ( | ||
1197 | stderr, | ||
1198 | _ ( | ||
1199 | "Multiple operations given. Please choose only one operation: %s, %s, %s, %s, %s, %s %s\n"), | ||
1200 | "disconnect", | ||
1201 | "benchmark send", | ||
1202 | "benchmark receive", | ||
1203 | "information", | ||
1204 | "monitor", | ||
1205 | "events", | ||
1206 | "plugins"); | ||
1207 | return; | ||
1208 | } | ||
1209 | if (0 == counter) | ||
1210 | { | ||
1211 | fprintf ( | ||
1212 | stderr, | ||
1213 | _ ( | ||
1214 | "No operation given. Please choose one operation: %s, %s, %s, %s, %s, %s, %s\n"), | ||
1215 | "disconnect", | ||
1216 | "benchmark send", | ||
1217 | "benchmark receive", | ||
1218 | "information", | ||
1219 | "monitor", | ||
1220 | "events", | ||
1221 | "plugins"); | ||
1222 | return; | ||
1223 | } | ||
1224 | |||
1225 | if (do_disconnect) /* -D: Disconnect from peer */ | ||
1226 | { | ||
1227 | if (0 == memcmp (&zero_pid, &pid, sizeof(pid))) | ||
1228 | { | ||
1229 | fprintf (stderr, | ||
1230 | _ ("Option `%s' makes no sense without option `%s'.\n"), | ||
1231 | "-D", | ||
1232 | "-p"); | ||
1233 | ret = 1; | ||
1234 | return; | ||
1235 | } | ||
1236 | blacklist = GNUNET_TRANSPORT_blacklist (cfg, &blacklist_cb, NULL); | ||
1237 | if (NULL == blacklist) | ||
1238 | { | ||
1239 | fprintf (stderr, | ||
1240 | "%s", | ||
1241 | _ ( | ||
1242 | "Failed to connect to transport service for disconnection\n")); | ||
1243 | ret = 1; | ||
1244 | return; | ||
1245 | } | ||
1246 | fprintf (stdout, | ||
1247 | "%s", | ||
1248 | _ ("Blacklisting request in place, stop with CTRL-C\n")); | ||
1249 | } | ||
1250 | else if (benchmark_send) /* -s: Benchmark sending */ | ||
1251 | { | ||
1252 | if (0 == memcmp (&zero_pid, &pid, sizeof(pid))) | ||
1253 | { | ||
1254 | fprintf (stderr, | ||
1255 | _ ("Option `%s' makes no sense without option `%s'.\n"), | ||
1256 | "-s", | ||
1257 | "-p"); | ||
1258 | ret = 1; | ||
1259 | return; | ||
1260 | } | ||
1261 | handle = GNUNET_TRANSPORT_core_connect (cfg, | ||
1262 | NULL, | ||
1263 | NULL, | ||
1264 | NULL, | ||
1265 | ¬ify_connect, | ||
1266 | ¬ify_disconnect, | ||
1267 | NULL); | ||
1268 | if (NULL == handle) | ||
1269 | { | ||
1270 | fprintf (stderr, "%s", _ ("Failed to connect to transport service\n")); | ||
1271 | ret = 1; | ||
1272 | return; | ||
1273 | } | ||
1274 | start_time = GNUNET_TIME_absolute_get (); | ||
1275 | op_timeout = | ||
1276 | GNUNET_SCHEDULER_add_delayed (OP_TIMEOUT, &operation_timeout, NULL); | ||
1277 | } | ||
1278 | else if (benchmark_receive) /* -b: Benchmark receiving */ | ||
1279 | { | ||
1280 | struct GNUNET_MQ_MessageHandler handlers[] = | ||
1281 | { GNUNET_MQ_hd_var_size (dummy, | ||
1282 | GNUNET_MESSAGE_TYPE_DUMMY, | ||
1283 | struct GNUNET_MessageHeader, | ||
1284 | NULL), | ||
1285 | GNUNET_MQ_handler_end () }; | ||
1286 | |||
1287 | handle = GNUNET_TRANSPORT_core_connect (cfg, | ||
1288 | NULL, | ||
1289 | handlers, | ||
1290 | NULL, | ||
1291 | NULL, | ||
1292 | NULL, | ||
1293 | NULL); | ||
1294 | if (NULL == handle) | ||
1295 | { | ||
1296 | fprintf (stderr, "%s", _ ("Failed to connect to transport service\n")); | ||
1297 | ret = 1; | ||
1298 | return; | ||
1299 | } | ||
1300 | if (verbosity > 0) | ||
1301 | fprintf (stdout, "%s", _ ("Starting to receive benchmark data\n")); | ||
1302 | start_time = GNUNET_TIME_absolute_get (); | ||
1303 | } | ||
1304 | else if (iterate_connections) /* -i: List information about peers once */ | ||
1305 | { | ||
1306 | pic = GNUNET_TRANSPORT_monitor_peers (cfg, | ||
1307 | &pid, | ||
1308 | GNUNET_YES, | ||
1309 | &process_peer_iteration_cb, | ||
1310 | (void *) cfg); | ||
1311 | op_timeout = | ||
1312 | GNUNET_SCHEDULER_add_delayed (OP_TIMEOUT, &operation_timeout, NULL); | ||
1313 | } | ||
1314 | else if (monitor_connections) /* -m: List information about peers continuously | ||
1315 | */ | ||
1316 | { | ||
1317 | monitored_peers = GNUNET_CONTAINER_multipeermap_create (10, GNUNET_NO); | ||
1318 | pic = GNUNET_TRANSPORT_monitor_peers (cfg, | ||
1319 | &pid, | ||
1320 | GNUNET_NO, | ||
1321 | &process_peer_monitoring_cb, | ||
1322 | NULL); | ||
1323 | } | ||
1324 | else if (monitor_plugins) /* -P: List information about plugins continuously | ||
1325 | */ | ||
1326 | { | ||
1327 | monitored_plugins = GNUNET_CONTAINER_multipeermap_create (10, GNUNET_NO); | ||
1328 | pm = GNUNET_TRANSPORT_monitor_plugins (cfg, &plugin_monitoring_cb, NULL); | ||
1329 | } | ||
1330 | else if (monitor_connects) /* -e : Monitor (dis)connect events continuously */ | ||
1331 | { | ||
1332 | monitor_connect_counter = 0; | ||
1333 | handle = GNUNET_TRANSPORT_core_connect (cfg, | ||
1334 | NULL, | ||
1335 | NULL, | ||
1336 | NULL, | ||
1337 | &monitor_notify_connect, | ||
1338 | &monitor_notify_disconnect, | ||
1339 | NULL); | ||
1340 | if (NULL == handle) | ||
1341 | { | ||
1342 | fprintf (stderr, "%s", _ ("Failed to connect to transport service\n")); | ||
1343 | ret = 1; | ||
1344 | return; | ||
1345 | } | ||
1346 | ret = 0; | ||
1347 | } | ||
1348 | else | ||
1349 | { | ||
1350 | GNUNET_break (0); | ||
1351 | return; | ||
1352 | } | ||
1353 | |||
1354 | GNUNET_SCHEDULER_add_shutdown (&shutdown_task, NULL); | ||
1355 | } | ||
1356 | |||
1357 | |||
1358 | int | ||
1359 | main (int argc, char *const *argv) | ||
1360 | { | ||
1361 | int res; | ||
1362 | struct GNUNET_GETOPT_CommandLineOption options[] = | ||
1363 | { GNUNET_GETOPT_option_flag ( | ||
1364 | 'a', | ||
1365 | "all", | ||
1366 | gettext_noop ( | ||
1367 | "print information for all peers (instead of only connected peers)"), | ||
1368 | &iterate_all), | ||
1369 | GNUNET_GETOPT_option_flag ( | ||
1370 | 'b', | ||
1371 | "benchmark", | ||
1372 | gettext_noop ( | ||
1373 | "measure how fast we are receiving data from all peers (until CTRL-C)"), | ||
1374 | &benchmark_receive), | ||
1375 | GNUNET_GETOPT_option_flag ('D', | ||
1376 | "disconnect", | ||
1377 | gettext_noop ("disconnect from a peer"), | ||
1378 | &do_disconnect), | ||
1379 | GNUNET_GETOPT_option_flag ( | ||
1380 | 'i', | ||
1381 | "information", | ||
1382 | gettext_noop ( | ||
1383 | "provide information about all current connections (once)"), | ||
1384 | &iterate_connections), | ||
1385 | GNUNET_GETOPT_option_flag ( | ||
1386 | 'm', | ||
1387 | "monitor", | ||
1388 | gettext_noop ( | ||
1389 | "provide information about all current connections (continuously)"), | ||
1390 | &monitor_connections), | ||
1391 | GNUNET_GETOPT_option_flag ( | ||
1392 | 'e', | ||
1393 | "events", | ||
1394 | gettext_noop ( | ||
1395 | "provide information about all connects and disconnect events (continuously)"), | ||
1396 | &monitor_connects), | ||
1397 | GNUNET_GETOPT_option_flag ('n', | ||
1398 | "numeric", | ||
1399 | gettext_noop ("do not resolve hostnames"), | ||
1400 | &numeric), | ||
1401 | GNUNET_GETOPT_option_base32_auto ('p', | ||
1402 | "peer", | ||
1403 | "PEER", | ||
1404 | gettext_noop ("peer identity"), | ||
1405 | &pid), | ||
1406 | GNUNET_GETOPT_option_flag ('P', | ||
1407 | "plugins", | ||
1408 | gettext_noop ("monitor plugin sessions"), | ||
1409 | &monitor_plugins), | ||
1410 | GNUNET_GETOPT_option_flag ( | ||
1411 | 's', | ||
1412 | "send", | ||
1413 | gettext_noop ( | ||
1414 | "send data for benchmarking to the other peer (until CTRL-C)"), | ||
1415 | &benchmark_send), | ||
1416 | GNUNET_GETOPT_option_verbose (&verbosity), | ||
1417 | GNUNET_GETOPT_OPTION_END }; | ||
1418 | |||
1419 | if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv)) | ||
1420 | return 2; | ||
1421 | |||
1422 | res = | ||
1423 | GNUNET_PROGRAM_run (argc, | ||
1424 | argv, | ||
1425 | "gnunet-transport", | ||
1426 | gettext_noop ("Direct access to transport service."), | ||
1427 | options, | ||
1428 | &run, | ||
1429 | NULL); | ||
1430 | GNUNET_free_nz ((void *) argv); | ||
1431 | if (GNUNET_OK == res) | ||
1432 | return ret; | ||
1433 | return 1; | ||
1434 | } | ||
1435 | |||
1436 | |||
1437 | /* end of gnunet-transport.c */ | ||
diff --git a/src/service/transport/ieee80211_radiotap.h b/src/service/transport/ieee80211_radiotap.h new file mode 100644 index 000000000..9351da9a5 --- /dev/null +++ b/src/service/transport/ieee80211_radiotap.h | |||
@@ -0,0 +1,276 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2003, 2004 David Young. All rights reserved. | ||
3 | * | ||
4 | * Redistribution and use in source and binary forms, with or without | ||
5 | * modification, are permitted provided that the following conditions | ||
6 | * are met: | ||
7 | * 1. Redistributions of source code must retain the above copyright | ||
8 | * notice, this list of conditions and the following disclaimer. | ||
9 | * 2. Redistributions in binary form must reproduce the above copyright | ||
10 | * notice, this list of conditions and the following disclaimer in the | ||
11 | * documentation and/or other materials provided with the distribution. | ||
12 | * 3. The name of David Young may not be used to endorse or promote | ||
13 | * products derived from this software without specific prior | ||
14 | * written permission. | ||
15 | * | ||
16 | * THIS SOFTWARE IS PROVIDED BY DAVID YOUNG ``AS IS'' AND ANY | ||
17 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | ||
18 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A | ||
19 | * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DAVID | ||
20 | * YOUNG BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
21 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED | ||
22 | * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | ||
24 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | ||
25 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY | ||
27 | * OF SUCH DAMAGE. | ||
28 | */ | ||
29 | |||
30 | /* | ||
31 | * Modifications to fit into the linux IEEE 802.11 stack, | ||
32 | * Mike Kershaw (dragorn@kismetwireless.net) | ||
33 | */ | ||
34 | |||
35 | #ifndef IEEE80211RADIOTAP_H | ||
36 | #define IEEE80211RADIOTAP_H | ||
37 | |||
38 | #include <linux/if_ether.h> | ||
39 | #include <linux/kernel.h> | ||
40 | // #include <asm/unaligned.h> | ||
41 | |||
42 | /* Base version of the radiotap packet header data */ | ||
43 | #define PKTHDR_RADIOTAP_VERSION 0 | ||
44 | |||
45 | /* A generic radio capture format is desirable. There is one for | ||
46 | * Linux, but it is neither rigidly defined (there were not even | ||
47 | * units given for some fields) nor easily extensible. | ||
48 | * | ||
49 | * I suggest the following extensible radio capture format. It is | ||
50 | * based on a bitmap indicating which fields are present. | ||
51 | * | ||
52 | * I am trying to describe precisely what the application programmer | ||
53 | * should expect in the following, and for that reason I tell the | ||
54 | * units and origin of each measurement (where it applies), or else I | ||
55 | * use sufficiently weaselly language ("is a monotonically nondecreasing | ||
56 | * function of...") that I cannot set false expectations for lawyerly | ||
57 | * readers. | ||
58 | */ | ||
59 | |||
60 | /* | ||
61 | * The radio capture header precedes the 802.11 header. | ||
62 | * All data in the header is little endian on all platforms. | ||
63 | */ | ||
64 | struct ieee80211_radiotap_header | ||
65 | { | ||
66 | u8 it_version; /* Version 0. Only increases | ||
67 | * for drastic changes, | ||
68 | * introduction of compatible | ||
69 | * new fields does not count. | ||
70 | */ | ||
71 | u8 it_pad; | ||
72 | __le16 it_len; /* length of the whole | ||
73 | * header in bytes, including | ||
74 | * it_version, it_pad, | ||
75 | * it_len, and data fields. | ||
76 | */ | ||
77 | __le32 it_present; /* A bitmap telling which | ||
78 | * fields are present. Set bit 31 | ||
79 | * (0x80000000) to extend the | ||
80 | * bitmap by another 32 bits. | ||
81 | * Additional extensions are made | ||
82 | * by setting bit 31. | ||
83 | */ | ||
84 | } __packed; | ||
85 | |||
86 | /* Name Data type Units | ||
87 | * ---- --------- ----- | ||
88 | * | ||
89 | * IEEE80211_RADIOTAP_TSFT __le64 microseconds | ||
90 | * | ||
91 | * Value in microseconds of the MAC's 64-bit 802.11 Time | ||
92 | * Synchronization Function timer when the first bit of the | ||
93 | * MPDU arrived at the MAC. For received frames, only. | ||
94 | * | ||
95 | * IEEE80211_RADIOTAP_CHANNEL 2 x __le16 MHz, bitmap | ||
96 | * | ||
97 | * Tx/Rx frequency in MHz, followed by flags (see below). | ||
98 | * | ||
99 | * IEEE80211_RADIOTAP_FHSS __le16 see below | ||
100 | * | ||
101 | * For frequency-hopping radios, the hop set (first byte) | ||
102 | * and pattern (second byte). | ||
103 | * | ||
104 | * IEEE80211_RADIOTAP_RATE u8 500kb/s | ||
105 | * | ||
106 | * Tx/Rx data rate | ||
107 | * | ||
108 | * IEEE80211_RADIOTAP_DBM_ANTSIGNAL s8 decibels from | ||
109 | * one milliwatt (dBm) | ||
110 | * | ||
111 | * RF signal power at the antenna, decibel difference from | ||
112 | * one milliwatt. | ||
113 | * | ||
114 | * IEEE80211_RADIOTAP_DBM_ANTNOISE s8 decibels from | ||
115 | * one milliwatt (dBm) | ||
116 | * | ||
117 | * RF noise power at the antenna, decibel difference from one | ||
118 | * milliwatt. | ||
119 | * | ||
120 | * IEEE80211_RADIOTAP_DB_ANTSIGNAL u8 decibel (dB) | ||
121 | * | ||
122 | * RF signal power at the antenna, decibel difference from an | ||
123 | * arbitrary, fixed reference. | ||
124 | * | ||
125 | * IEEE80211_RADIOTAP_DB_ANTNOISE u8 decibel (dB) | ||
126 | * | ||
127 | * RF noise power at the antenna, decibel difference from an | ||
128 | * arbitrary, fixed reference point. | ||
129 | * | ||
130 | * IEEE80211_RADIOTAP_LOCK_QUALITY __le16 unitless | ||
131 | * | ||
132 | * Quality of Barker code lock. Unitless. Monotonically | ||
133 | * nondecreasing with "better" lock strength. Called "Signal | ||
134 | * Quality" in datasheets. (Is there a standard way to measure | ||
135 | * this?) | ||
136 | * | ||
137 | * IEEE80211_RADIOTAP_TX_ATTENUATION __le16 unitless | ||
138 | * | ||
139 | * Transmit power expressed as unitless distance from max | ||
140 | * power set at factory calibration. 0 is max power. | ||
141 | * Monotonically nondecreasing with lower power levels. | ||
142 | * | ||
143 | * IEEE80211_RADIOTAP_DB_TX_ATTENUATION __le16 decibels (dB) | ||
144 | * | ||
145 | * Transmit power expressed as decibel distance from max power | ||
146 | * set at factory calibration. 0 is max power. Monotonically | ||
147 | * nondecreasing with lower power levels. | ||
148 | * | ||
149 | * IEEE80211_RADIOTAP_DBM_TX_POWER s8 decibels from | ||
150 | * one milliwatt (dBm) | ||
151 | * | ||
152 | * Transmit power expressed as dBm (decibels from a 1 milliwatt | ||
153 | * reference). This is the absolute power level measured at | ||
154 | * the antenna port. | ||
155 | * | ||
156 | * IEEE80211_RADIOTAP_FLAGS u8 bitmap | ||
157 | * | ||
158 | * Properties of transmitted and received frames. See flags | ||
159 | * defined below. | ||
160 | * | ||
161 | * IEEE80211_RADIOTAP_ANTENNA u8 antenna index | ||
162 | * | ||
163 | * Unitless indication of the Rx/Tx antenna for this packet. | ||
164 | * The first antenna is antenna 0. | ||
165 | * | ||
166 | * IEEE80211_RADIOTAP_RX_FLAGS __le16 bitmap | ||
167 | * | ||
168 | * Properties of received frames. See flags defined below. | ||
169 | * | ||
170 | * IEEE80211_RADIOTAP_TX_FLAGS __le16 bitmap | ||
171 | * | ||
172 | * Properties of transmitted frames. See flags defined below. | ||
173 | * | ||
174 | * IEEE80211_RADIOTAP_RTS_RETRIES u8 data | ||
175 | * | ||
176 | * Number of rts retries a transmitted frame used. | ||
177 | * | ||
178 | * IEEE80211_RADIOTAP_DATA_RETRIES u8 data | ||
179 | * | ||
180 | * Number of unicast retries a transmitted frame used. | ||
181 | * | ||
182 | */ | ||
183 | enum ieee80211_radiotap_type | ||
184 | { | ||
185 | IEEE80211_RADIOTAP_TSFT = 0, | ||
186 | IEEE80211_RADIOTAP_FLAGS = 1, | ||
187 | IEEE80211_RADIOTAP_RATE = 2, | ||
188 | IEEE80211_RADIOTAP_CHANNEL = 3, | ||
189 | IEEE80211_RADIOTAP_FHSS = 4, | ||
190 | IEEE80211_RADIOTAP_DBM_ANTSIGNAL = 5, | ||
191 | IEEE80211_RADIOTAP_DBM_ANTNOISE = 6, | ||
192 | IEEE80211_RADIOTAP_LOCK_QUALITY = 7, | ||
193 | IEEE80211_RADIOTAP_TX_ATTENUATION = 8, | ||
194 | IEEE80211_RADIOTAP_DB_TX_ATTENUATION = 9, | ||
195 | IEEE80211_RADIOTAP_DBM_TX_POWER = 10, | ||
196 | IEEE80211_RADIOTAP_ANTENNA = 11, | ||
197 | IEEE80211_RADIOTAP_DB_ANTSIGNAL = 12, | ||
198 | IEEE80211_RADIOTAP_DB_ANTNOISE = 13, | ||
199 | IEEE80211_RADIOTAP_RX_FLAGS = 14, | ||
200 | IEEE80211_RADIOTAP_TX_FLAGS = 15, | ||
201 | IEEE80211_RADIOTAP_RTS_RETRIES = 16, | ||
202 | IEEE80211_RADIOTAP_DATA_RETRIES = 17, | ||
203 | |||
204 | /* valid in every it_present bitmap, even vendor namespaces */ | ||
205 | IEEE80211_RADIOTAP_RADIOTAP_NAMESPACE = 29, | ||
206 | IEEE80211_RADIOTAP_VENDOR_NAMESPACE = 30, | ||
207 | IEEE80211_RADIOTAP_EXT = 31 | ||
208 | }; | ||
209 | |||
210 | /* Channel flags. */ | ||
211 | #define IEEE80211_CHAN_TURBO 0x0010 /* Turbo channel */ | ||
212 | #define IEEE80211_CHAN_CCK 0x0020 /* CCK channel */ | ||
213 | #define IEEE80211_CHAN_OFDM 0x0040 /* OFDM channel */ | ||
214 | #define IEEE80211_CHAN_2GHZ 0x0080 /* 2 GHz spectrum channel. */ | ||
215 | #define IEEE80211_CHAN_5GHZ 0x0100 /* 5 GHz spectrum channel */ | ||
216 | #define IEEE80211_CHAN_PASSIVE 0x0200 /* Only passive scan allowed */ | ||
217 | #define IEEE80211_CHAN_DYN 0x0400 /* Dynamic CCK-OFDM channel */ | ||
218 | #define IEEE80211_CHAN_GFSK 0x0800 /* GFSK channel (FHSS PHY) */ | ||
219 | |||
220 | /* For IEEE80211_RADIOTAP_FLAGS */ | ||
221 | #define IEEE80211_RADIOTAP_F_CFP 0x01 /* sent/received | ||
222 | * during CFP | ||
223 | */ | ||
224 | #define IEEE80211_RADIOTAP_F_SHORTPRE 0x02 /* sent/received | ||
225 | * with short | ||
226 | * preamble | ||
227 | */ | ||
228 | #define IEEE80211_RADIOTAP_F_WEP 0x04 /* sent/received | ||
229 | * with WEP encryption | ||
230 | */ | ||
231 | #define IEEE80211_RADIOTAP_F_FRAG 0x08 /* sent/received | ||
232 | * with fragmentation | ||
233 | */ | ||
234 | #define IEEE80211_RADIOTAP_F_FCS 0x10 /* frame includes FCS */ | ||
235 | #define IEEE80211_RADIOTAP_F_DATAPAD 0x20 /* frame has padding between | ||
236 | * 802.11 header and payload | ||
237 | * (to 32-bit boundary) | ||
238 | */ | ||
239 | #define IEEE80211_RADIOTAP_F_BADFCS 0x40 /* bad FCS */ | ||
240 | |||
241 | /* For IEEE80211_RADIOTAP_RX_FLAGS */ | ||
242 | #define IEEE80211_RADIOTAP_F_RX_BADPLCP 0x0002 /* frame has bad PLCP */ | ||
243 | |||
244 | /* For IEEE80211_RADIOTAP_TX_FLAGS */ | ||
245 | #define IEEE80211_RADIOTAP_F_TX_FAIL 0x0001 /* failed due to excessive | ||
246 | * retries */ | ||
247 | #define IEEE80211_RADIOTAP_F_TX_CTS 0x0002 /* used cts 'protection' */ | ||
248 | #define IEEE80211_RADIOTAP_F_TX_RTS 0x0004 /* used rts/cts handshake */ | ||
249 | |||
250 | /* Ugly macro to convert literal channel numbers into their mhz equivalents | ||
251 | * There are certainly some conditions that will break this (like feeding it '30') | ||
252 | * but they shouldn't arise since nothing talks on channel 30. */ | ||
253 | #define ieee80211chan2mhz(x) \ | ||
254 | (((x) <= 14) ? \ | ||
255 | (((x) == 14) ? 2484 : ((x) * 5) + 2407) : \ | ||
256 | ((x) + 1000) * 5) | ||
257 | |||
258 | /* helpers */ | ||
259 | static inline u16 | ||
260 | get_unaligned_le16 (const u8 *p) | ||
261 | { | ||
262 | return p[0] | p[1] << 8; | ||
263 | } | ||
264 | |||
265 | |||
266 | static inline int | ||
267 | ieee80211_get_radiotap_len (unsigned char *data) | ||
268 | { | ||
269 | struct ieee80211_radiotap_header *hdr = | ||
270 | (struct ieee80211_radiotap_header *) data; | ||
271 | |||
272 | return get_unaligned_le16 ((const u8 *) &hdr->it_len); | ||
273 | } | ||
274 | |||
275 | |||
276 | #endif /* IEEE80211_RADIOTAP_H */ | ||
diff --git a/src/service/transport/meson.build b/src/service/transport/meson.build new file mode 100644 index 000000000..1fdc47699 --- /dev/null +++ b/src/service/transport/meson.build | |||
@@ -0,0 +1,501 @@ | |||
1 | libgnunettransportapplication_src = ['transport_api2_application.c'] | ||
2 | libgnunettransportcore_src = ['transport_api2_core.c'] | ||
3 | libgnunettransportcommunicator_src = ['transport_api2_communication.c'] | ||
4 | libgnunettransportmonitor_src = ['transport_api2_monitor.c'] | ||
5 | |||
6 | gnunetservicetransport_src = ['gnunet-service-transport.c'] | ||
7 | gnunetcommunicatortcp_src = ['gnunet-communicator-tcp.c'] | ||
8 | gnunetcommunicatorudp_src = ['gnunet-communicator-udp.c'] | ||
9 | gnunetcommunicatorunix_src = ['gnunet-communicator-unix.c'] | ||
10 | |||
11 | configure_file(input : 'transport.conf.in', | ||
12 | output : 'transport.conf', | ||
13 | configuration : cdata, | ||
14 | install: true, | ||
15 | install_dir: pkgcfgdir) | ||
16 | |||
17 | configure_file(input : 'gnunet-transport-certificate-creation.in', | ||
18 | output : 'gnunet-transport-certificate-creation', | ||
19 | configuration : cdata, | ||
20 | install: true, | ||
21 | install_dir: get_option('bindir')) | ||
22 | |||
23 | if get_option('monolith') | ||
24 | foreach p : libgnunettransportapplication_src + libgnunettransportcore_src + libgnunettransportcommunicator_src + libgnunettransportmonitor_src + gnunetservicetransport_src | ||
25 | gnunet_src += 'transport/' + p | ||
26 | endforeach | ||
27 | endif | ||
28 | |||
29 | libgnunettransportapplication = library('gnunettransportapplication', | ||
30 | libgnunettransportapplication_src, | ||
31 | soversion: '0', | ||
32 | version: '0.0.0', | ||
33 | dependencies: libgnunetutil_dep, | ||
34 | include_directories: [incdir, configuration_inc], | ||
35 | install: true, | ||
36 | install_dir: get_option('libdir')) | ||
37 | pkg.generate(libgnunettransportapplication, url: 'https://www.gnunet.org', | ||
38 | description : 'Provides application APIs for accessing the transport service') | ||
39 | libgnunettransportapplication_dep = declare_dependency(link_with : libgnunettransportapplication) | ||
40 | |||
41 | libgnunettransportcore = library('gnunettransportcore', | ||
42 | libgnunettransportcore_src, | ||
43 | soversion: '0', | ||
44 | version: '0.0.0', | ||
45 | dependencies: libgnunetutil_dep, | ||
46 | include_directories: [incdir, configuration_inc], | ||
47 | install: true, | ||
48 | install_dir: get_option('libdir')) | ||
49 | pkg.generate(libgnunettransportcore, url: 'https://www.gnunet.org', | ||
50 | description : 'Provides core API for accessing the transport service') | ||
51 | libgnunettransportcore_dep = declare_dependency(link_with : libgnunettransportcore) | ||
52 | |||
53 | libgnunettransportcommunicator = library('gnunettransportcommunicator', | ||
54 | libgnunettransportcommunicator_src, | ||
55 | soversion: '0', | ||
56 | version: '0.0.0', | ||
57 | dependencies: libgnunetutil_dep, | ||
58 | include_directories: [incdir, configuration_inc], | ||
59 | install: true, | ||
60 | install_dir: get_option('libdir')) | ||
61 | pkg.generate(libgnunettransportcommunicator, url: 'https://www.gnunet.org', | ||
62 | description : 'Provides communicator API for accessing the transport service') | ||
63 | libgnunettransportcommunicator_dep = declare_dependency(link_with : libgnunettransportcommunicator) | ||
64 | |||
65 | libgnunettransportmonitor = library('gnunettransportmonitor', | ||
66 | libgnunettransportmonitor_src, | ||
67 | soversion: '0', | ||
68 | version: '0.0.0', | ||
69 | dependencies: libgnunetutil_dep, | ||
70 | include_directories: [incdir, configuration_inc], | ||
71 | install: true, | ||
72 | install_dir: get_option('libdir')) | ||
73 | pkg.generate(libgnunettransportmonitor, url: 'https://www.gnunet.org', | ||
74 | description : 'Provides monitor API for accessing the transport service') | ||
75 | libgnunettransportmonitor_dep = declare_dependency(link_with : libgnunettransportmonitor) | ||
76 | |||
77 | libgnunettransporttesting2 = library('gnunettransporttesting2', | ||
78 | [ | ||
79 | 'transport_api_traits.c', | ||
80 | 'transport_api_cmd_connecting_peers.c', | ||
81 | 'transport_api_cmd_backchannel_check.c', | ||
82 | 'transport_api_cmd_start_peer.c', | ||
83 | 'transport_api_cmd_stop_peer.c', | ||
84 | 'testing_api_cmd_start_peer.c', | ||
85 | 'testing_api_cmd_stop_peer.c', | ||
86 | 'transport_api_cmd_send_simple.c', | ||
87 | 'transport_api_cmd_send_simple_performance.c', | ||
88 | 'transport-testing2.c', | ||
89 | 'transport-testing-filenames2.c', | ||
90 | 'transport-testing-loggers2.c', | ||
91 | 'transport-testing-main2.c', | ||
92 | 'transport-testing-send2.c', | ||
93 | 'transport-testing-communicator.c', | ||
94 | ], | ||
95 | soversion: '0', | ||
96 | version: '0.0.0', | ||
97 | dependencies: [libgnunetutil_dep, | ||
98 | libgnunettransportcore_dep, | ||
99 | libgnunettransportapplication_dep, | ||
100 | libgnunetpeerstore_dep, | ||
101 | libgnunettesting_dep, | ||
102 | libgnunethello_dep], | ||
103 | include_directories: [incdir, configuration_inc], | ||
104 | install: true, | ||
105 | install_dir: get_option('libdir')) | ||
106 | libgnunettransporttesting2_dep = declare_dependency(link_with : libgnunettransporttesting2) | ||
107 | |||
108 | executable ('gnunet-service-transport', | ||
109 | gnunetservicetransport_src, | ||
110 | dependencies: [libgnunettransportcommunicator_dep, | ||
111 | libgnunetpeerstore_dep, | ||
112 | libgnunetstatistics_dep, | ||
113 | libgnunethello_dep, | ||
114 | libgnunetnat_dep, | ||
115 | gcrypt_dep, | ||
116 | m_dep, | ||
117 | libgnunetutil_dep], | ||
118 | include_directories: [incdir, configuration_inc], | ||
119 | install: true, | ||
120 | install_dir: get_option('libdir') / 'gnunet' / 'libexec') | ||
121 | |||
122 | executable ('gnunet-communicator-unix', | ||
123 | gnunetcommunicatorunix_src, | ||
124 | dependencies: [libgnunettransportcommunicator_dep, | ||
125 | libgnunetpeerstore_dep, | ||
126 | libgnunetstatistics_dep, | ||
127 | libgnunetnat_dep, | ||
128 | gcrypt_dep, | ||
129 | libgnunetutil_dep], | ||
130 | include_directories: [incdir, configuration_inc], | ||
131 | install: true, | ||
132 | install_dir: get_option('libdir') / 'gnunet' / 'libexec') | ||
133 | executable ('gnunet-communicator-udp', | ||
134 | gnunetcommunicatorudp_src, | ||
135 | dependencies: [libgnunettransportcommunicator_dep, | ||
136 | libgnunettransportapplication_dep, | ||
137 | libgnunetpeerstore_dep, | ||
138 | libgnunetstatistics_dep, | ||
139 | libgnunetnat_dep, | ||
140 | gcrypt_dep, | ||
141 | libgnunetutil_dep], | ||
142 | include_directories: [incdir, configuration_inc], | ||
143 | install: true, | ||
144 | install_dir: get_option('libdir') / 'gnunet' / 'libexec') | ||
145 | executable ('gnunet-communicator-tcp', | ||
146 | gnunetcommunicatortcp_src, | ||
147 | dependencies: [libgnunettransportcommunicator_dep, | ||
148 | libgnunetpeerstore_dep, | ||
149 | libgnunetstatistics_dep, | ||
150 | libgnunetnat_dep, | ||
151 | gcrypt_dep, | ||
152 | libgnunetutil_dep], | ||
153 | include_directories: [incdir, configuration_inc], | ||
154 | install: true, | ||
155 | install_dir: get_option('libdir') / 'gnunet' / 'libexec') | ||
156 | if quic_dep.found() and get_option('experimental') | ||
157 | executable ('gnunet-communicator-quic', | ||
158 | gnunetcommunicatortcp_src, | ||
159 | dependencies: [libgnunettransportcommunicator_dep, | ||
160 | libgnunetpeerstore_dep, | ||
161 | libgnunetstatistics_dep, | ||
162 | libgnunetnat_dep, | ||
163 | gcrypt_dep, | ||
164 | quic_dep, | ||
165 | libgnunetutil_dep], | ||
166 | include_directories: [incdir, configuration_inc], | ||
167 | install: true, | ||
168 | install_dir: get_option('libdir') / 'gnunet' / 'libexec') | ||
169 | endif | ||
170 | |||
171 | libgnunettesttransport_cmd_simplesend = library('gnunet_test_transport_plugin_cmd_simple_send', | ||
172 | ['test_transport_plugin_cmd_simple_send.c'], | ||
173 | dependencies: [ | ||
174 | libgnunetutil_dep, | ||
175 | libgnunettransportapplication_dep, | ||
176 | libgnunettransporttesting2_dep, | ||
177 | libgnunettransportcore_dep, | ||
178 | libgnunettesting_dep, | ||
179 | libgnunetpeerstore_dep, | ||
180 | libgnunetstatistics_dep, | ||
181 | libgnunethello_dep, | ||
182 | libgnunetarm_dep, | ||
183 | libgnunetutil_dep | ||
184 | ], | ||
185 | include_directories: [incdir, configuration_inc], | ||
186 | install: true, | ||
187 | install_dir: get_option('libdir')/'gnunet') | ||
188 | |||
189 | libgnunettesttransport_cmd_simplesendbc = library('gnunet_test_transport_plugin_cmd_simple_send_broadcast', | ||
190 | ['test_transport_plugin_cmd_simple_send_broadcast.c'], | ||
191 | dependencies: [ | ||
192 | libgnunetutil_dep, | ||
193 | libgnunettransportapplication_dep, | ||
194 | libgnunettransporttesting2_dep, | ||
195 | libgnunettransportcore_dep, | ||
196 | libgnunettesting_dep, | ||
197 | libgnunetpeerstore_dep, | ||
198 | libgnunetstatistics_dep, | ||
199 | libgnunethello_dep, | ||
200 | libgnunetarm_dep, | ||
201 | libgnunetutil_dep | ||
202 | ], | ||
203 | include_directories: [incdir, configuration_inc], | ||
204 | install: true, | ||
205 | install_dir: get_option('libdir')/'gnunet') | ||
206 | |||
207 | libgnunettesttransport_cmd_simplesenddv = library('gnunet_test_transport_plugin_cmd_simple_send_dv', | ||
208 | ['test_transport_plugin_cmd_simple_send_dv.c'], | ||
209 | dependencies: [ | ||
210 | libgnunetutil_dep, | ||
211 | libgnunettransportapplication_dep, | ||
212 | libgnunettransporttesting2_dep, | ||
213 | libgnunettransportcore_dep, | ||
214 | libgnunettesting_dep, | ||
215 | libgnunetpeerstore_dep, | ||
216 | libgnunetstatistics_dep, | ||
217 | libgnunethello_dep, | ||
218 | libgnunetarm_dep, | ||
219 | libgnunetutil_dep | ||
220 | ], | ||
221 | include_directories: [incdir, configuration_inc], | ||
222 | install: true, | ||
223 | install_dir: get_option('libdir')/'gnunet') | ||
224 | |||
225 | libgnunettesttransport_cmd_simplesendperf = library('gnunet_test_transport_plugin_cmd_simple_send_performance', | ||
226 | ['test_transport_plugin_cmd_simple_send_performance.c'], | ||
227 | dependencies: [ | ||
228 | libgnunetutil_dep, | ||
229 | libgnunettransportapplication_dep, | ||
230 | libgnunettransporttesting2_dep, | ||
231 | libgnunettransportcore_dep, | ||
232 | libgnunettesting_dep, | ||
233 | libgnunetpeerstore_dep, | ||
234 | libgnunetstatistics_dep, | ||
235 | libgnunethello_dep, | ||
236 | libgnunetarm_dep, | ||
237 | libgnunetutil_dep | ||
238 | ], | ||
239 | include_directories: [incdir, configuration_inc], | ||
240 | install: true, | ||
241 | install_dir: get_option('libdir')/'gnunet') | ||
242 | |||
243 | libgnunettesttransport_cmd_udpback = library('gnunet_test_transport_plugin_cmd_udp_backchannel', | ||
244 | ['test_transport_plugin_cmd_udp_backchannel.c'], | ||
245 | dependencies: [ | ||
246 | libgnunetutil_dep, | ||
247 | libgnunettransporttesting2_dep, | ||
248 | libgnunettransportapplication_dep, | ||
249 | libgnunettransportcore_dep, | ||
250 | libgnunettesting_dep, | ||
251 | libgnunetpeerstore_dep, | ||
252 | libgnunetstatistics_dep, | ||
253 | libgnunethello_dep, | ||
254 | libgnunetarm_dep, | ||
255 | libgnunetutil_dep | ||
256 | ], | ||
257 | include_directories: [incdir, configuration_inc], | ||
258 | install: true, | ||
259 | install_dir: get_option('libdir')/'gnunet') | ||
260 | |||
261 | libgnunettesttransport_cmd_natupnp = library('gnunet_test_transport_plugin_cmd_nat_upnp', | ||
262 | ['test_transport_plugin_cmd_nat_upnp.c'], | ||
263 | dependencies: [ | ||
264 | libgnunetutil_dep, | ||
265 | libgnunettransportapplication_dep, | ||
266 | libgnunettransporttesting2_dep, | ||
267 | libgnunettransportcore_dep, | ||
268 | libgnunettesting_dep, | ||
269 | libgnunetpeerstore_dep, | ||
270 | libgnunetstatistics_dep, | ||
271 | libgnunethello_dep, | ||
272 | libgnunetarm_dep, | ||
273 | libgnunetutil_dep | ||
274 | ], | ||
275 | include_directories: [incdir, configuration_inc], | ||
276 | install: true, | ||
277 | install_dir: get_option('libdir')/'gnunet') | ||
278 | |||
279 | configure_file(input : 'test_transport_defaults.conf', | ||
280 | output : 'test_transport_defaults.conf', | ||
281 | copy: true) | ||
282 | |||
283 | foreach p : ['unix', 'tcp', 'udp', 'quic'] | ||
284 | configure_file(input : 'test_communicator_'+p+'_basic_peer1.conf', | ||
285 | output : 'test_communicator_'+p+'_basic_peer1.conf', | ||
286 | copy: true) | ||
287 | configure_file(input : 'test_communicator_'+p+'_basic_peer2.conf', | ||
288 | output : 'test_communicator_'+p+'_basic_peer2.conf', | ||
289 | copy: true) | ||
290 | endforeach | ||
291 | |||
292 | foreach p : ['tcp', 'udp'] | ||
293 | configure_file(input : 'test_communicator_'+p+'_rekey_peer1.conf', | ||
294 | output : 'test_communicator_'+p+'_rekey_peer1.conf', | ||
295 | copy: true) | ||
296 | configure_file(input : 'test_communicator_'+p+'_rekey_peer2.conf', | ||
297 | output : 'test_communicator_'+p+'_rekey_peer2.conf', | ||
298 | copy: true) | ||
299 | endforeach | ||
300 | |||
301 | configure_file(input : 'test_communicator_udp_backchannel_peer1.conf', | ||
302 | output : 'test_communicator_udp_backchannel_peer1.conf', | ||
303 | copy: true) | ||
304 | configure_file(input : 'test_communicator_udp_backchannel_peer2.conf', | ||
305 | output : 'test_communicator_udp_backchannel_peer2.conf', | ||
306 | copy: true) | ||
307 | |||
308 | configure_file(input : 'test_communicator_tcp_bidirect_peer1.conf', | ||
309 | output : 'test_communicator_tcp_bidirect_peer1.conf', | ||
310 | copy: true) | ||
311 | configure_file(input : 'test_communicator_tcp_bidirect_peer2.conf', | ||
312 | output : 'test_communicator_tcp_bidirect_peer2.conf', | ||
313 | copy: true) | ||
314 | |||
315 | testcommunicator_basic_unix = executable('test_communicator_basic-unix', | ||
316 | ['test_communicator_basic.c'], | ||
317 | dependencies: [ | ||
318 | libgnunetutil_dep, | ||
319 | libgnunettransportapplication_dep, | ||
320 | libgnunettransporttesting2_dep, | ||
321 | libgnunettransportcore_dep, | ||
322 | libgnunettesting_dep, | ||
323 | libgnunetpeerstore_dep, | ||
324 | libgnunetstatistics_dep, | ||
325 | libgnunethello_dep, | ||
326 | libgnunetarm_dep, | ||
327 | libgnunetutil_dep | ||
328 | ], | ||
329 | include_directories: [incdir, configuration_inc], | ||
330 | install: false) | ||
331 | testcommunicator_basic_tcp = executable('test_communicator_basic-tcp', | ||
332 | ['test_communicator_basic.c'], | ||
333 | dependencies: [ | ||
334 | libgnunetutil_dep, | ||
335 | libgnunettransportapplication_dep, | ||
336 | libgnunettransporttesting2_dep, | ||
337 | libgnunettransportcore_dep, | ||
338 | libgnunettesting_dep, | ||
339 | libgnunetpeerstore_dep, | ||
340 | libgnunetstatistics_dep, | ||
341 | libgnunethello_dep, | ||
342 | libgnunetarm_dep, | ||
343 | libgnunetutil_dep | ||
344 | ], | ||
345 | include_directories: [incdir, configuration_inc], | ||
346 | install: false) | ||
347 | testcommunicator_basic_udp = executable('test_communicator_basic-udp', | ||
348 | ['test_communicator_basic.c'], | ||
349 | dependencies: [ | ||
350 | libgnunetutil_dep, | ||
351 | libgnunettransportapplication_dep, | ||
352 | libgnunettransporttesting2_dep, | ||
353 | libgnunettransportcore_dep, | ||
354 | libgnunettesting_dep, | ||
355 | libgnunetpeerstore_dep, | ||
356 | libgnunetstatistics_dep, | ||
357 | libgnunethello_dep, | ||
358 | libgnunetarm_dep, | ||
359 | libgnunetutil_dep | ||
360 | ], | ||
361 | include_directories: [incdir, configuration_inc], | ||
362 | install: false) | ||
363 | if quic_dep.found() and get_option('experimental') | ||
364 | testcommunicator_basic_quic = executable('test_communicator_basic-quic', | ||
365 | ['test_communicator_basic.c'], | ||
366 | dependencies: [ | ||
367 | libgnunetutil_dep, | ||
368 | libgnunettransportapplication_dep, | ||
369 | libgnunettransporttesting2_dep, | ||
370 | libgnunettransportcore_dep, | ||
371 | libgnunettesting_dep, | ||
372 | libgnunetpeerstore_dep, | ||
373 | libgnunetstatistics_dep, | ||
374 | libgnunethello_dep, | ||
375 | libgnunetarm_dep, | ||
376 | libgnunetutil_dep | ||
377 | ], | ||
378 | include_directories: [incdir, configuration_inc], | ||
379 | install: false) | ||
380 | endif | ||
381 | |||
382 | testcommunicator_rekey_tcp = executable('test_communicator_rekey-tcp', | ||
383 | ['test_communicator_basic.c'], | ||
384 | dependencies: [ | ||
385 | libgnunetutil_dep, | ||
386 | libgnunettransportapplication_dep, | ||
387 | libgnunettransporttesting2_dep, | ||
388 | libgnunettransportcore_dep, | ||
389 | libgnunettesting_dep, | ||
390 | libgnunetpeerstore_dep, | ||
391 | libgnunetstatistics_dep, | ||
392 | libgnunethello_dep, | ||
393 | libgnunetarm_dep, | ||
394 | libgnunetutil_dep | ||
395 | ], | ||
396 | include_directories: [incdir, configuration_inc], | ||
397 | install: false) | ||
398 | |||
399 | testcommunicator_rekey_udp = executable('test_communicator_rekey-udp', | ||
400 | ['test_communicator_basic.c'], | ||
401 | dependencies: [ | ||
402 | libgnunetutil_dep, | ||
403 | libgnunettransportapplication_dep, | ||
404 | libgnunettransporttesting2_dep, | ||
405 | libgnunettransportcore_dep, | ||
406 | libgnunettesting_dep, | ||
407 | libgnunetpeerstore_dep, | ||
408 | libgnunetstatistics_dep, | ||
409 | libgnunethello_dep, | ||
410 | libgnunetarm_dep, | ||
411 | libgnunetutil_dep | ||
412 | ], | ||
413 | include_directories: [incdir, configuration_inc], | ||
414 | install: false) | ||
415 | |||
416 | testcommunicator_backchannel_udp = executable('test_communicator_backchannel-udp', | ||
417 | ['test_communicator_basic.c'], | ||
418 | dependencies: [ | ||
419 | libgnunetutil_dep, | ||
420 | libgnunettransportapplication_dep, | ||
421 | libgnunettransporttesting2_dep, | ||
422 | libgnunettransportcore_dep, | ||
423 | libgnunettesting_dep, | ||
424 | libgnunetpeerstore_dep, | ||
425 | libgnunetstatistics_dep, | ||
426 | libgnunethello_dep, | ||
427 | libgnunetarm_dep, | ||
428 | libgnunetutil_dep | ||
429 | ], | ||
430 | include_directories: [incdir, configuration_inc], | ||
431 | install: false) | ||
432 | |||
433 | testcommunicator_bidirect_tcp = executable('test_communicator_bidirect-tcp', | ||
434 | ['test_communicator_basic.c'], | ||
435 | dependencies: [ | ||
436 | libgnunetutil_dep, | ||
437 | libgnunettransportapplication_dep, | ||
438 | libgnunettransporttesting2_dep, | ||
439 | libgnunettransportcore_dep, | ||
440 | libgnunettesting_dep, | ||
441 | libgnunetpeerstore_dep, | ||
442 | libgnunetstatistics_dep, | ||
443 | libgnunethello_dep, | ||
444 | libgnunetarm_dep, | ||
445 | libgnunetutil_dep | ||
446 | ], | ||
447 | include_directories: [incdir, configuration_inc], | ||
448 | install: false) | ||
449 | |||
450 | |||
451 | testtransport_test_names = [ | ||
452 | 'test_transport_start_testcase', | ||
453 | 'test_transport_simple_send_performance', | ||
454 | 'test_transport_nat_icmp_tcp', | ||
455 | 'test_transport_nat_upnp', | ||
456 | 'test_transport_simple_send_string', | ||
457 | 'test_transport_simple_send', | ||
458 | 'test_transport_simple_send_broadcast', | ||
459 | 'test_transport_udp_backchannel', | ||
460 | 'test_transport_simple_send_dv_circle', | ||
461 | 'test_transport_simple_send_dv_inverse' | ||
462 | ] | ||
463 | |||
464 | foreach t : testtransport_test_names | ||
465 | |||
466 | test_filename = t + '.sh' | ||
467 | test_file = configure_file(input : test_filename, | ||
468 | output : test_filename, | ||
469 | copy: true) | ||
470 | |||
471 | if host_machine.system() != 'darwin' | ||
472 | test(t, test_file, suite: 'transport', workdir: meson.current_build_dir(), is_parallel: false) | ||
473 | endif | ||
474 | endforeach | ||
475 | |||
476 | test('test_communicator_basic-unix', testcommunicator_basic_unix, | ||
477 | workdir: meson.current_build_dir(), | ||
478 | suite: ['transport', 'communicator'], is_parallel: false) | ||
479 | test('test_communicator_basic-tcp', testcommunicator_basic_tcp, | ||
480 | workdir: meson.current_build_dir(), | ||
481 | suite: ['transport', 'communicator'], is_parallel: false) | ||
482 | test('test_communicator_basic-udp', testcommunicator_basic_udp, | ||
483 | workdir: meson.current_build_dir(), | ||
484 | suite: ['transport', 'communicator'], is_parallel: false) | ||
485 | if quic_dep.found() and get_option('experimental') | ||
486 | test('test_communicator_basic-quic', testcommunicator_basic_quic, | ||
487 | workdir: meson.current_build_dir(), | ||
488 | suite: ['transport', 'communicator'], is_parallel: false) | ||
489 | endif | ||
490 | test('test_communicator_rekey-tcp', testcommunicator_rekey_tcp, | ||
491 | workdir: meson.current_build_dir(), | ||
492 | suite: ['transport', 'communicator'], is_parallel: false) | ||
493 | test('test_communicator_rekey-udp', testcommunicator_rekey_udp, | ||
494 | workdir: meson.current_build_dir(), | ||
495 | suite: ['transport', 'communicator'], is_parallel: false) | ||
496 | test('test_communicator_backchannel-udp', testcommunicator_backchannel_udp, | ||
497 | workdir: meson.current_build_dir(), | ||
498 | suite: ['transport', 'communicator'], is_parallel: false) | ||
499 | test('test_communicator_bidirect-tcp', testcommunicator_bidirect_tcp, | ||
500 | workdir: meson.current_build_dir(), | ||
501 | suite: ['transport', 'communicator'], is_parallel: false) | ||
diff --git a/src/service/transport/template_cfg_peer1.conf b/src/service/transport/template_cfg_peer1.conf new file mode 100644 index 000000000..5ba198450 --- /dev/null +++ b/src/service/transport/template_cfg_peer1.conf | |||
@@ -0,0 +1,50 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-p1/ | ||
4 | GNUNET_RUNTIME_DIR = $GNUNET_TEST_HOME/runtime/ | ||
5 | GNUNET_USER_RUNTIME_DIR = $GNUNET_TEST_HOME/runtime/ | ||
6 | |||
7 | [nat] | ||
8 | RETURN_LOCAL_ADDRESSES = YES | ||
9 | DISABLEV6 = NO | ||
10 | |||
11 | [transport-tcp] | ||
12 | PORT = 12000 | ||
13 | TIMEOUT = 5 s | ||
14 | |||
15 | [transport-udp] | ||
16 | BROADCAST = NO | ||
17 | |||
18 | [transport-unix] | ||
19 | PORT = 12007 | ||
20 | |||
21 | [arm] | ||
22 | PORT = 12005 | ||
23 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-arm.sock | ||
24 | |||
25 | [statistics] | ||
26 | PORT = 12004 | ||
27 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-statistics.sock | ||
28 | |||
29 | [resolver] | ||
30 | PORT = 12003 | ||
31 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-resolver.sock | ||
32 | |||
33 | [peerinfo] | ||
34 | PORT = 12002 | ||
35 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-peerinfo.sock | ||
36 | USE_INCLUDED_HELLOS = NO | ||
37 | |||
38 | [transport] | ||
39 | #PREFIX = valgrind --leak-check=full | ||
40 | PORT = 12001 | ||
41 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-transport.sock | ||
42 | |||
43 | [ats] | ||
44 | WAN_QUOTA_IN = unlimited | ||
45 | WAN_QUOTA_OUT = unlimited | ||
46 | PORT = 12006 | ||
47 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-ats.sock | ||
48 | |||
49 | [hostlist] | ||
50 | SERVERS = dummy | ||
diff --git a/src/service/transport/template_cfg_peer2.conf b/src/service/transport/template_cfg_peer2.conf new file mode 100644 index 000000000..6ac610fec --- /dev/null +++ b/src/service/transport/template_cfg_peer2.conf | |||
@@ -0,0 +1,58 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-p2/ | ||
4 | GNUNET_RUNTIME_DIR = $GNUNET_TEST_HOME/runtime/ | ||
5 | GNUNET_USER_RUNTIME_DIR = $GNUNET_TEST_HOME/runtime/ | ||
6 | |||
7 | [nat] | ||
8 | RETURN_LOCAL_ADDRESSES = YES | ||
9 | DISABLEV6 = NO | ||
10 | |||
11 | [transport-tcp] | ||
12 | PORT = 12100 | ||
13 | TIMEOUT = 5 s | ||
14 | |||
15 | [transport-udp] | ||
16 | BROADCAST = NO | ||
17 | |||
18 | [transport-unix] | ||
19 | PORT = 12017 | ||
20 | |||
21 | [transport-http_server] | ||
22 | PORT = 12018 | ||
23 | USE_IPv6 = YES | ||
24 | |||
25 | [transport-https_server] | ||
26 | PORT = 12019 | ||
27 | KEY_FILE = $GNUNET_TEST_HOME/https_key_p1.key | ||
28 | CERT_FILE = $GNUNET_TEST_HOME/https_cert_p1.crt | ||
29 | USE_IPv6 = YES | ||
30 | |||
31 | [arm] | ||
32 | PORT = 12014 | ||
33 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-arm.sock | ||
34 | |||
35 | [statistics] | ||
36 | PORT = 12013 | ||
37 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-statistics.sock | ||
38 | |||
39 | [resolver] | ||
40 | PORT = 12012 | ||
41 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-resolver.sock | ||
42 | |||
43 | [peerinfo] | ||
44 | PORT = 12011 | ||
45 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-peerinfo.sock | ||
46 | USE_INCLUDED_HELLOS = NO | ||
47 | |||
48 | [transport] | ||
49 | #PREFIX = valgrind --leak-check=full | ||
50 | PORT = 12010 | ||
51 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-transport.sock | ||
52 | |||
53 | [ats] | ||
54 | PORT = 12016 | ||
55 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-ats.sock | ||
56 | |||
57 | [hostlist] | ||
58 | SERVERS = dummy | ||
diff --git a/src/service/transport/template_tng_cfg_peer1.conf b/src/service/transport/template_tng_cfg_peer1.conf new file mode 100644 index 000000000..b6198d72c --- /dev/null +++ b/src/service/transport/template_tng_cfg_peer1.conf | |||
@@ -0,0 +1,34 @@ | |||
1 | @INLINE@ test_tng_defaults.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-p1/ | ||
4 | GNUNET_RUNTIME_DIR = $GNUNET_TEST_HOME/runtime/ | ||
5 | GNUNET_USER_RUNTIME_DIR = $GNUNET_TEST_HOME/runtime/ | ||
6 | |||
7 | [nat] | ||
8 | RETURN_LOCAL_ADDRESSES = YES | ||
9 | DISABLEV6 = NO | ||
10 | |||
11 | [arm] | ||
12 | PORT = 12005 | ||
13 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-arm.sock | ||
14 | |||
15 | [statistics] | ||
16 | PORT = 12004 | ||
17 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-statistics.sock | ||
18 | |||
19 | [resolver] | ||
20 | PORT = 12003 | ||
21 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-resolver.sock | ||
22 | |||
23 | [peerinfo] | ||
24 | PORT = 12002 | ||
25 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-peerinfo.sock | ||
26 | USE_INCLUDED_HELLOS = NO | ||
27 | |||
28 | [transport] | ||
29 | #PREFIX = valgrind --leak-check=full | ||
30 | PORT = 12001 | ||
31 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-transport.sock | ||
32 | |||
33 | [hostlist] | ||
34 | SERVERS = dummy | ||
diff --git a/src/service/transport/test_communicator_basic.c b/src/service/transport/test_communicator_basic.c new file mode 100644 index 000000000..78ac26b25 --- /dev/null +++ b/src/service/transport/test_communicator_basic.c | |||
@@ -0,0 +1,1266 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2019 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/test_communicator_basic.c | ||
23 | * @brief test the communicators | ||
24 | * @author Julius Bünger | ||
25 | * @author Martin Schanzenbach | ||
26 | */ | ||
27 | #include "platform.h" | ||
28 | #include "gnunet_util_lib.h" | ||
29 | #include "transport-testing-communicator.h" | ||
30 | #include "gnunet_signatures.h" | ||
31 | #include "gnunet_testing_lib.h" | ||
32 | #include "transport.h" | ||
33 | #include "gnunet_statistics_service.h" | ||
34 | |||
35 | #include <inttypes.h> | ||
36 | |||
37 | |||
38 | #define LOG(kind, ...) GNUNET_log_from (kind, \ | ||
39 | "test_transport_communicator", \ | ||
40 | __VA_ARGS__) | ||
41 | |||
42 | #define NUM_PEERS 2 | ||
43 | |||
44 | static struct GNUNET_SCHEDULER_Task *to_task[NUM_PEERS]; | ||
45 | |||
46 | static int queue_est = GNUNET_NO; | ||
47 | |||
48 | static struct GNUNET_PeerIdentity peer_id[NUM_PEERS]; | ||
49 | |||
50 | static char *communicator_binary; | ||
51 | |||
52 | static struct | ||
53 | GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_hs[NUM_PEERS]; | ||
54 | |||
55 | static struct GNUNET_CONFIGURATION_Handle *cfg_peers[NUM_PEERS]; | ||
56 | |||
57 | static struct GNUNET_STATISTICS_Handle *stats[NUM_PEERS]; | ||
58 | |||
59 | static char *cfg_peers_name[NUM_PEERS]; | ||
60 | |||
61 | static int finished[NUM_PEERS]; | ||
62 | |||
63 | static int ret; | ||
64 | |||
65 | static int bidirect = GNUNET_NO; | ||
66 | |||
67 | static size_t long_message_size; | ||
68 | |||
69 | static struct GNUNET_TIME_Absolute start_short[NUM_PEERS]; | ||
70 | |||
71 | static struct GNUNET_TIME_Absolute start_long[NUM_PEERS]; | ||
72 | |||
73 | static struct GNUNET_TIME_Absolute timeout[NUM_PEERS]; | ||
74 | |||
75 | // static struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *my_tc; | ||
76 | |||
77 | static char *communicator_name; | ||
78 | |||
79 | static char *test_name; | ||
80 | |||
81 | static struct GNUNET_STATISTICS_GetHandle *box_stats[NUM_PEERS]; | ||
82 | |||
83 | static struct GNUNET_STATISTICS_GetHandle *rekey_stats[NUM_PEERS]; | ||
84 | |||
85 | #define TEST_SECTION "test-setup" | ||
86 | |||
87 | #define SHORT_MESSAGE_SIZE 128 | ||
88 | |||
89 | #define LONG_MESSAGE_SIZE 32000 /* FIXME */ | ||
90 | |||
91 | #define ALLOWED_PACKET_LOSS 91 | ||
92 | |||
93 | #define BURST_PACKETS 5000 | ||
94 | |||
95 | #define TOTAL_ITERATIONS 1 | ||
96 | |||
97 | #define PEER_A 0 | ||
98 | |||
99 | #define PEER_B 1 | ||
100 | |||
101 | static unsigned int iterations_left[NUM_PEERS]; | ||
102 | |||
103 | #define TIMEOUT_MULTIPLIER 5 | ||
104 | |||
105 | #define DEFAULT_DELAY \ | ||
106 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MICROSECONDS,200) | ||
107 | |||
108 | #define SHORT_BURST_WINDOW \ | ||
109 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,2) | ||
110 | |||
111 | #define LONG_BURST_WINDOW \ | ||
112 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,2) | ||
113 | |||
114 | enum TestPhase | ||
115 | { | ||
116 | TP_INIT, | ||
117 | TP_BURST_SHORT, | ||
118 | TP_BURST_LONG, | ||
119 | TP_SIZE_CHECK | ||
120 | }; | ||
121 | |||
122 | static unsigned int phase_short[NUM_PEERS]; | ||
123 | |||
124 | static unsigned int phase_long[NUM_PEERS]; | ||
125 | |||
126 | static unsigned int phase_size[NUM_PEERS]; | ||
127 | |||
128 | static long long unsigned int allowed_packet_loss_short; | ||
129 | |||
130 | static long long unsigned int allowed_packet_loss_long; | ||
131 | |||
132 | static long long unsigned int burst_packets_short; | ||
133 | |||
134 | static long long unsigned int burst_packets_long; | ||
135 | |||
136 | static long long unsigned int delay_long_value; | ||
137 | |||
138 | static long long unsigned int delay_short_value; | ||
139 | |||
140 | static struct GNUNET_TIME_Relative delay_short; | ||
141 | |||
142 | static struct GNUNET_TIME_Relative delay_long; | ||
143 | |||
144 | static size_t num_sent_short[NUM_PEERS]; | ||
145 | |||
146 | static size_t num_sent_long[NUM_PEERS]; | ||
147 | |||
148 | static size_t num_sent_size[NUM_PEERS]; | ||
149 | |||
150 | static uint32_t ack[NUM_PEERS]; | ||
151 | |||
152 | static enum TestPhase phase[NUM_PEERS]; | ||
153 | |||
154 | static size_t num_received_short[NUM_PEERS]; | ||
155 | |||
156 | static size_t num_received_long[NUM_PEERS]; | ||
157 | |||
158 | static size_t num_received_size[NUM_PEERS]; | ||
159 | |||
160 | static uint64_t avg_latency[NUM_PEERS]; | ||
161 | |||
162 | static void | ||
163 | communicator_available_cb ( | ||
164 | void *cls, | ||
165 | struct | ||
166 | GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h, | ||
167 | enum GNUNET_TRANSPORT_CommunicatorCharacteristics cc, | ||
168 | char *address_prefix) | ||
169 | { | ||
170 | LOG (GNUNET_ERROR_TYPE_INFO, | ||
171 | "Communicator available. (cc: %u, prefix: %s)\n", | ||
172 | cc, | ||
173 | address_prefix); | ||
174 | } | ||
175 | |||
176 | |||
177 | static void | ||
178 | open_queue (void *cls) | ||
179 | { | ||
180 | const char *address = cls; | ||
181 | |||
182 | if (NULL != tc_hs[PEER_A]->c_mq) | ||
183 | { | ||
184 | queue_est = GNUNET_YES; | ||
185 | GNUNET_TRANSPORT_TESTING_transport_communicator_open_queue (tc_hs[PEER_A], | ||
186 | &peer_id[PEER_B] | ||
187 | , | ||
188 | address); | ||
189 | } | ||
190 | else | ||
191 | { | ||
192 | GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS, | ||
193 | &open_queue, | ||
194 | (void *) address); | ||
195 | } | ||
196 | } | ||
197 | |||
198 | |||
199 | static void | ||
200 | add_address_cb ( | ||
201 | void *cls, | ||
202 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h, | ||
203 | const char *address, | ||
204 | struct GNUNET_TIME_Relative expiration, | ||
205 | uint32_t aid, | ||
206 | enum GNUNET_NetworkType nt) | ||
207 | { | ||
208 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
209 | "New address. (addr: %s, expir: %s, ID: %" PRIu32 ", nt: %u\n", | ||
210 | address, | ||
211 | GNUNET_STRINGS_relative_time_to_string (expiration, | ||
212 | GNUNET_NO), | ||
213 | aid, | ||
214 | (int) nt); | ||
215 | // addresses[1] = GNUNET_strdup (address); | ||
216 | if ((0 == strcmp ((char*) cls, cfg_peers_name[PEER_B])) && | ||
217 | (GNUNET_NO == queue_est)) | ||
218 | { | ||
219 | open_queue ((void *) address); | ||
220 | } | ||
221 | } | ||
222 | |||
223 | |||
224 | /** | ||
225 | * @brief Callback that informs whether the requested queue will be | ||
226 | * established | ||
227 | * | ||
228 | * Implements #GNUNET_TRANSPORT_TESTING_QueueCreateReplyCallback. | ||
229 | * | ||
230 | * @param cls Closure - unused | ||
231 | * @param tc_h Communicator handle - unused | ||
232 | * @param will_try #GNUNET_YES if queue will be established | ||
233 | * #GNUNET_NO if queue will not be established (bogous address) | ||
234 | */ | ||
235 | static void | ||
236 | queue_create_reply_cb ( | ||
237 | void *cls, | ||
238 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h, | ||
239 | int will_try) | ||
240 | { | ||
241 | (void) cls; | ||
242 | (void) tc_h; | ||
243 | if (GNUNET_YES == will_try) | ||
244 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
245 | "Queue will be established!\n"); | ||
246 | else | ||
247 | LOG (GNUNET_ERROR_TYPE_WARNING, | ||
248 | "Queue won't be established (bougus address?)!\n"); | ||
249 | } | ||
250 | |||
251 | |||
252 | static struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle * | ||
253 | handle_backchannel_cb (void *cls, | ||
254 | struct GNUNET_MessageHeader *msg, | ||
255 | struct GNUNET_PeerIdentity *pid) | ||
256 | { | ||
257 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h = cls; | ||
258 | |||
259 | (void) tc_h; | ||
260 | (void) msg; | ||
261 | LOG (GNUNET_ERROR_TYPE_DEBUG, "Handling BC message...\n"); | ||
262 | if (0 == memcmp (&peer_id[PEER_A], pid, sizeof (*pid))) | ||
263 | return tc_hs[PEER_A]; | ||
264 | else | ||
265 | return tc_hs[PEER_B]; | ||
266 | } | ||
267 | |||
268 | |||
269 | static char* | ||
270 | make_payload (size_t payload_size) | ||
271 | { | ||
272 | struct GNUNET_TIME_Absolute ts; | ||
273 | struct GNUNET_TIME_AbsoluteNBO ts_n; | ||
274 | char *payload = GNUNET_malloc (payload_size); | ||
275 | |||
276 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
277 | "Making payload of size %lu\n", payload_size); | ||
278 | GNUNET_assert (payload_size >= 8); // So that out timestamp fits | ||
279 | ts = GNUNET_TIME_absolute_get (); | ||
280 | ts_n = GNUNET_TIME_absolute_hton (ts); | ||
281 | memset (payload, 'a', payload_size); | ||
282 | memcpy (payload, &ts_n, sizeof (struct GNUNET_TIME_AbsoluteNBO)); | ||
283 | return payload; | ||
284 | } | ||
285 | |||
286 | |||
287 | static struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle * | ||
288 | get_tc_h (unsigned int peer_nr) | ||
289 | { | ||
290 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
291 | "Got peer %u\n", | ||
292 | peer_nr); | ||
293 | |||
294 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
295 | "Handle %p peer 0\n", | ||
296 | tc_hs[0]); | ||
297 | |||
298 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
299 | "Handle %p peer 1\n", | ||
300 | tc_hs[1]); | ||
301 | |||
302 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
303 | "Handle %p get\n", | ||
304 | tc_hs[peer_nr]); | ||
305 | |||
306 | return tc_hs[peer_nr]; | ||
307 | } | ||
308 | |||
309 | |||
310 | static unsigned int | ||
311 | get_peer_nr_from_tc (struct | ||
312 | GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h) | ||
313 | { | ||
314 | if (tc_h == get_tc_h (0)) | ||
315 | return PEER_A; | ||
316 | else | ||
317 | return PEER_B; | ||
318 | } | ||
319 | |||
320 | |||
321 | static unsigned int | ||
322 | get_peer_nr (void *cls, unsigned int get_the_other_one) | ||
323 | { | ||
324 | if (0 == strcmp ((char*) cls, cfg_peers_name[0])) | ||
325 | return get_the_other_one ? PEER_B : PEER_A; | ||
326 | else | ||
327 | return get_the_other_one ? PEER_A : PEER_B; | ||
328 | } | ||
329 | |||
330 | |||
331 | static void | ||
332 | process_statistics_box_done (void *cls, int success) | ||
333 | { | ||
334 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h = cls; | ||
335 | unsigned int peer_nr; | ||
336 | |||
337 | peer_nr = get_peer_nr_from_tc (tc_h); | ||
338 | |||
339 | if (NULL != box_stats[peer_nr]) | ||
340 | box_stats[peer_nr] = NULL; | ||
341 | if (NULL == rekey_stats[peer_nr]) | ||
342 | { | ||
343 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
344 | "Finished\n"); | ||
345 | GNUNET_SCHEDULER_shutdown (); | ||
346 | } | ||
347 | } | ||
348 | |||
349 | |||
350 | static void | ||
351 | process_statistics_rekey_done (void *cls, int success) | ||
352 | { | ||
353 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h = cls; | ||
354 | unsigned int peer_nr; | ||
355 | |||
356 | peer_nr = get_peer_nr_from_tc (tc_h); | ||
357 | |||
358 | if (NULL != rekey_stats[peer_nr]) | ||
359 | rekey_stats[peer_nr] = NULL; | ||
360 | if (NULL == box_stats[peer_nr]) | ||
361 | { | ||
362 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
363 | "Finished\n"); | ||
364 | GNUNET_SCHEDULER_shutdown (); | ||
365 | } | ||
366 | } | ||
367 | |||
368 | |||
369 | static int | ||
370 | process_statistics (void *cls, | ||
371 | const char *subsystem, | ||
372 | const char *name, | ||
373 | uint64_t value, | ||
374 | int is_persistent) | ||
375 | { | ||
376 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
377 | "Statistic: Name %s and value %" PRIu64 "\n", | ||
378 | name, | ||
379 | value); | ||
380 | if ((0 == strcmp ("rekey", test_name)) && (0 == strcmp ( | ||
381 | "# rekeying successful", | ||
382 | name))) | ||
383 | { | ||
384 | if (0 == value) | ||
385 | { | ||
386 | ret = 2; | ||
387 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
388 | "No successful rekeying!\n"); | ||
389 | GNUNET_SCHEDULER_shutdown (); | ||
390 | } | ||
391 | LOG (GNUNET_ERROR_TYPE_MESSAGE, | ||
392 | "Successful rekeys: %llu\n", | ||
393 | (unsigned long long) value); | ||
394 | } | ||
395 | if ((0 == strcmp ("backchannel", test_name)) && | ||
396 | (0 == strcmp ( | ||
397 | "# messages decrypted with BOX", | ||
398 | name)) | ||
399 | && (9000 > value)) | ||
400 | { | ||
401 | ret = 2; | ||
402 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
403 | "Not enough BOX messages! (want: %u, have %llu)\n", | ||
404 | 9000, (unsigned long long) value); | ||
405 | GNUNET_SCHEDULER_shutdown (); | ||
406 | } | ||
407 | if ((0 == strcmp ("rekey", test_name)) && | ||
408 | (0 == strcmp ( | ||
409 | "# messages decrypted with BOX", | ||
410 | name)) | ||
411 | && (6000 > value)) | ||
412 | { | ||
413 | if (6000 > value) | ||
414 | { | ||
415 | ret = 2; | ||
416 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
417 | "Not enough BOX messages! (want: %u, have %llu)\n", | ||
418 | 6000, (unsigned long long) value); | ||
419 | GNUNET_SCHEDULER_shutdown (); | ||
420 | } | ||
421 | LOG (GNUNET_ERROR_TYPE_MESSAGE, | ||
422 | "Successful messages in BOX: %llu\n", | ||
423 | (unsigned long long) value); | ||
424 | } | ||
425 | return GNUNET_OK; | ||
426 | } | ||
427 | |||
428 | |||
429 | static void | ||
430 | short_test (void *cls); | ||
431 | |||
432 | static void | ||
433 | short_test_cb (void *cls) | ||
434 | { | ||
435 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h = cls; | ||
436 | unsigned int peer_nr; | ||
437 | char *payload; | ||
438 | |||
439 | peer_nr = get_peer_nr_from_tc (tc_h); | ||
440 | |||
441 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
442 | "short_test_cb %u/%u for peer %u and handle %p\n", | ||
443 | (unsigned int) num_sent_short[peer_nr], | ||
444 | (unsigned int) num_received_short[peer_nr], | ||
445 | peer_nr, | ||
446 | tc_h); | ||
447 | payload = make_payload (SHORT_MESSAGE_SIZE); | ||
448 | num_sent_short[peer_nr]++; | ||
449 | if (burst_packets_short == num_sent_short[peer_nr]) | ||
450 | tc_h->cont = NULL; | ||
451 | else | ||
452 | tc_h->cont = short_test; | ||
453 | tc_h->cont_cls = cls; | ||
454 | GNUNET_TRANSPORT_TESTING_transport_communicator_send (tc_h, | ||
455 | NULL, | ||
456 | cls, | ||
457 | payload, | ||
458 | SHORT_MESSAGE_SIZE); | ||
459 | GNUNET_free (payload); | ||
460 | timeout[peer_nr] = GNUNET_TIME_relative_to_absolute ( | ||
461 | GNUNET_TIME_relative_multiply ( | ||
462 | GNUNET_TIME_UNIT_SECONDS, | ||
463 | TIMEOUT_MULTIPLIER)); | ||
464 | } | ||
465 | |||
466 | |||
467 | static void | ||
468 | short_test (void *cls) | ||
469 | { | ||
470 | GNUNET_SCHEDULER_add_delayed (delay_short, | ||
471 | &short_test_cb, | ||
472 | cls); | ||
473 | } | ||
474 | |||
475 | |||
476 | static void | ||
477 | size_test (void *cls) | ||
478 | { | ||
479 | unsigned int peer_nr; | ||
480 | char *payload; | ||
481 | size_t max_size = 64000; | ||
482 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h = cls; | ||
483 | |||
484 | peer_nr = get_peer_nr_from_tc (tc_h); | ||
485 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
486 | "size_test_cb %u\n", | ||
487 | (unsigned int) num_sent_size[peer_nr]); | ||
488 | GNUNET_assert (TP_SIZE_CHECK == phase[peer_nr]); | ||
489 | if (LONG_MESSAGE_SIZE != long_message_size) | ||
490 | max_size = long_message_size; | ||
491 | if (ack[peer_nr] + 10 > max_size) | ||
492 | return; /* Leave some room for our protocol, so not 2^16 exactly */ | ||
493 | ack[peer_nr] += 10; | ||
494 | payload = make_payload (ack[peer_nr]); | ||
495 | num_sent_size[peer_nr]++; | ||
496 | if (ack[peer_nr] >= max_size) | ||
497 | tc_h->cont = NULL; | ||
498 | else | ||
499 | tc_h->cont = size_test; | ||
500 | tc_h->cont_cls = cls; | ||
501 | GNUNET_TRANSPORT_TESTING_transport_communicator_send (tc_h, | ||
502 | NULL, | ||
503 | cls, | ||
504 | payload, | ||
505 | ack[peer_nr]); | ||
506 | GNUNET_free (payload); | ||
507 | timeout[peer_nr] = GNUNET_TIME_relative_to_absolute ( | ||
508 | GNUNET_TIME_relative_multiply ( | ||
509 | GNUNET_TIME_UNIT_SECONDS, | ||
510 | TIMEOUT_MULTIPLIER)); | ||
511 | } | ||
512 | |||
513 | |||
514 | static void | ||
515 | long_test (void *cls); | ||
516 | |||
517 | static void | ||
518 | long_test_cb (void *cls) | ||
519 | { | ||
520 | unsigned int peer_nr; | ||
521 | char *payload; | ||
522 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h = cls; | ||
523 | |||
524 | peer_nr = get_peer_nr_from_tc (tc_h); | ||
525 | |||
526 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
527 | "long_test_cb %u/%u\n", | ||
528 | (unsigned int) num_sent_long[peer_nr], | ||
529 | (unsigned int) num_received_long[peer_nr]); | ||
530 | payload = make_payload (long_message_size); | ||
531 | num_sent_long[peer_nr]++; | ||
532 | if (burst_packets_long == num_sent_long[peer_nr]) | ||
533 | tc_h->cont = NULL; | ||
534 | else | ||
535 | tc_h->cont = long_test; | ||
536 | tc_h->cont_cls = cls; | ||
537 | GNUNET_TRANSPORT_TESTING_transport_communicator_send (tc_h, | ||
538 | NULL, | ||
539 | cls, | ||
540 | payload, | ||
541 | long_message_size); | ||
542 | GNUNET_free (payload); | ||
543 | timeout[peer_nr] = GNUNET_TIME_relative_to_absolute ( | ||
544 | GNUNET_TIME_relative_multiply ( | ||
545 | GNUNET_TIME_UNIT_SECONDS, | ||
546 | TIMEOUT_MULTIPLIER)); | ||
547 | } | ||
548 | |||
549 | |||
550 | static void | ||
551 | long_test (void *cls) | ||
552 | { | ||
553 | GNUNET_SCHEDULER_add_delayed (delay_long, | ||
554 | &long_test_cb, | ||
555 | cls); | ||
556 | } | ||
557 | |||
558 | |||
559 | static void | ||
560 | choose_phase (struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h) | ||
561 | { | ||
562 | unsigned int peer_nr; | ||
563 | |||
564 | peer_nr = get_peer_nr_from_tc (tc_h); | ||
565 | |||
566 | if (GNUNET_YES == phase_short[peer_nr]) | ||
567 | { | ||
568 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
569 | "Choose phase short with peer %u and Handle %p\n", | ||
570 | peer_nr, | ||
571 | tc_h); | ||
572 | phase[peer_nr] = TP_BURST_SHORT; | ||
573 | start_short[peer_nr] = GNUNET_TIME_absolute_get (); | ||
574 | short_test (tc_h); | ||
575 | } | ||
576 | else if (GNUNET_YES == phase_long[peer_nr]) | ||
577 | { | ||
578 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
579 | "Choose phase long with peer %u\n", | ||
580 | peer_nr); | ||
581 | phase[peer_nr] = TP_BURST_LONG; | ||
582 | start_long[peer_nr] = GNUNET_TIME_absolute_get (); | ||
583 | long_test (tc_h); | ||
584 | } | ||
585 | else if (GNUNET_YES == phase_size[peer_nr]) | ||
586 | { | ||
587 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
588 | "Choose phase size\n"); | ||
589 | phase[peer_nr] = TP_SIZE_CHECK; | ||
590 | size_test (tc_h); | ||
591 | } | ||
592 | else | ||
593 | { | ||
594 | if ((0 == strcmp ("udp", communicator_name)) && ((0 == strcmp ("rekey", | ||
595 | test_name)) | ||
596 | || (0 == strcmp ( | ||
597 | "backchannel", | ||
598 | test_name))) ) | ||
599 | { | ||
600 | LOG (GNUNET_ERROR_TYPE_DEBUG, "Getting statistics UDP...\n"); | ||
601 | if (NULL != box_stats[peer_nr]) | ||
602 | GNUNET_STATISTICS_get_cancel (box_stats[peer_nr]); | ||
603 | box_stats[peer_nr] = GNUNET_STATISTICS_get (stats[1], | ||
604 | "communicator-udp", | ||
605 | "# messages decrypted with BOX", | ||
606 | process_statistics_box_done, | ||
607 | &process_statistics, | ||
608 | tc_h); | ||
609 | if (NULL != rekey_stats[peer_nr]) | ||
610 | GNUNET_STATISTICS_get_cancel (rekey_stats[peer_nr]); | ||
611 | rekey_stats[peer_nr] = GNUNET_STATISTICS_get (stats[1], | ||
612 | "communicator-udp", | ||
613 | "# rekeying successful", | ||
614 | process_statistics_rekey_done, | ||
615 | &process_statistics, | ||
616 | tc_h); | ||
617 | } | ||
618 | else if ((0 == strcmp ("tcp", communicator_name)) && (0 == strcmp ("rekey", | ||
619 | test_name))) | ||
620 | { | ||
621 | LOG (GNUNET_ERROR_TYPE_DEBUG, "Getting statistics... TCP\n"); | ||
622 | if (NULL != box_stats[peer_nr]) | ||
623 | GNUNET_STATISTICS_get_cancel (box_stats[peer_nr]); | ||
624 | box_stats[peer_nr] = GNUNET_STATISTICS_get (stats[1], | ||
625 | "communicator-tcp", | ||
626 | //"# messages decrypted with BOX", | ||
627 | NULL, | ||
628 | process_statistics_box_done, | ||
629 | &process_statistics, | ||
630 | tc_h); | ||
631 | if (NULL != rekey_stats[peer_nr]) | ||
632 | GNUNET_STATISTICS_get_cancel (rekey_stats[peer_nr]); | ||
633 | rekey_stats[peer_nr] = GNUNET_STATISTICS_get (stats[1], | ||
634 | "communicator-tcp", | ||
635 | "# rekeying successful", | ||
636 | process_statistics_rekey_done, | ||
637 | &process_statistics, | ||
638 | tc_h); | ||
639 | } | ||
640 | else | ||
641 | { | ||
642 | if ((GNUNET_NO == bidirect) || (((PEER_A == peer_nr) && | ||
643 | finished[PEER_B]) || ((PEER_B == | ||
644 | peer_nr) && | ||
645 | finished | ||
646 | [PEER_A]))) | ||
647 | { | ||
648 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
649 | "Finished\n"); | ||
650 | GNUNET_SCHEDULER_shutdown (); | ||
651 | } | ||
652 | finished[peer_nr] = GNUNET_YES; | ||
653 | } | ||
654 | } | ||
655 | } | ||
656 | |||
657 | |||
658 | static void | ||
659 | finish_phase_long (unsigned int peer_nr) | ||
660 | { | ||
661 | static struct GNUNET_TIME_Relative duration; | ||
662 | |||
663 | duration = GNUNET_TIME_absolute_get_duration (start_long[peer_nr]); | ||
664 | LOG (GNUNET_ERROR_TYPE_MESSAGE, | ||
665 | "Long size packet test for peer %u done.\n", | ||
666 | peer_nr); | ||
667 | char *goodput = GNUNET_STRINGS_byte_size_fancy ( | ||
668 | (long_message_size * num_received_long[peer_nr] * 1000 * 1000) | ||
669 | / duration. | ||
670 | rel_value_us); | ||
671 | |||
672 | LOG (GNUNET_ERROR_TYPE_MESSAGE, | ||
673 | "%lu/%lu packets in %llu us (%s/s) -- avg latency: %llu us\n", | ||
674 | (unsigned long) num_received_long[peer_nr], | ||
675 | (unsigned long) num_sent_long[peer_nr], | ||
676 | (unsigned long long) duration.rel_value_us, | ||
677 | goodput, | ||
678 | (unsigned long long) avg_latency[peer_nr]); | ||
679 | GNUNET_free (goodput); | ||
680 | ack[peer_nr] = 0; | ||
681 | // phase = TP_SIZE_CHECK; | ||
682 | // num_received = 0; | ||
683 | // num_sent_long = 0; | ||
684 | avg_latency[peer_nr] = 0; | ||
685 | // size_test (NULL); | ||
686 | phase_long[peer_nr] = GNUNET_NO; | ||
687 | choose_phase (get_tc_h (peer_nr)); | ||
688 | } | ||
689 | |||
690 | |||
691 | static void | ||
692 | finish_phase_short (unsigned int peer_nr) | ||
693 | { | ||
694 | static struct GNUNET_TIME_Relative duration; | ||
695 | |||
696 | duration = GNUNET_TIME_absolute_get_duration (start_short[peer_nr]); | ||
697 | LOG (GNUNET_ERROR_TYPE_MESSAGE, | ||
698 | "Short size packet test for peer %u done.\n", | ||
699 | peer_nr); | ||
700 | char *goodput = GNUNET_STRINGS_byte_size_fancy ( | ||
701 | (SHORT_MESSAGE_SIZE * num_received_short[peer_nr] * 1000 * 1000) | ||
702 | / duration.rel_value_us); | ||
703 | LOG (GNUNET_ERROR_TYPE_MESSAGE, | ||
704 | "%lu/%lu packets in %llu us (%s/s) -- avg latency: %llu us\n", | ||
705 | (unsigned long) num_received_short[peer_nr], | ||
706 | (unsigned long) num_sent_short[peer_nr], | ||
707 | (unsigned long long) duration.rel_value_us, | ||
708 | goodput, | ||
709 | (unsigned long long) avg_latency[peer_nr]); | ||
710 | GNUNET_free (goodput); | ||
711 | // start_long = GNUNET_TIME_absolute_get (); | ||
712 | // phase = TP_BURST_LONG; | ||
713 | // num_sent_short = 0; | ||
714 | avg_latency[peer_nr] = 0; | ||
715 | // num_received = 0; | ||
716 | phase_short[peer_nr] = GNUNET_NO; | ||
717 | choose_phase (get_tc_h (peer_nr)); | ||
718 | // long_test (NULL); | ||
719 | } | ||
720 | |||
721 | |||
722 | static void | ||
723 | latency_timeout (void *cls) | ||
724 | { | ||
725 | |||
726 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h = cls; | ||
727 | unsigned int peer_nr; | ||
728 | size_t num_sent = 0; | ||
729 | size_t num_received = 0; | ||
730 | |||
731 | peer_nr = get_peer_nr_from_tc (tc_h); | ||
732 | to_task[peer_nr] = NULL; | ||
733 | |||
734 | switch (phase[peer_nr]) | ||
735 | { | ||
736 | case TP_INIT: | ||
737 | GNUNET_assert (0); | ||
738 | break; | ||
739 | case TP_BURST_SHORT: | ||
740 | num_sent = num_sent_short[peer_nr]; | ||
741 | num_received = num_received_short[peer_nr]; | ||
742 | if ((num_sent_short[peer_nr] == burst_packets_short) && | ||
743 | (num_received_short[peer_nr] > | ||
744 | burst_packets_short | ||
745 | / 100 | ||
746 | * | ||
747 | allowed_packet_loss_short) ) | ||
748 | { | ||
749 | finish_phase_short (peer_nr); | ||
750 | to_task[peer_nr] = GNUNET_SCHEDULER_add_at (timeout[peer_nr], | ||
751 | &latency_timeout, | ||
752 | cls); | ||
753 | return; | ||
754 | } | ||
755 | break; | ||
756 | case TP_BURST_LONG: | ||
757 | num_sent = num_sent_long[peer_nr]; | ||
758 | num_received = num_received_long[peer_nr]; | ||
759 | if ((num_sent_long[peer_nr] == burst_packets_long) && | ||
760 | (num_received_long[peer_nr] > | ||
761 | burst_packets_long | ||
762 | / 100 | ||
763 | * | ||
764 | allowed_packet_loss_long) ) | ||
765 | { | ||
766 | finish_phase_long (peer_nr); | ||
767 | to_task[peer_nr] = GNUNET_SCHEDULER_add_at (timeout[peer_nr], | ||
768 | &latency_timeout, | ||
769 | cls); | ||
770 | return; | ||
771 | } | ||
772 | break; | ||
773 | case TP_SIZE_CHECK: | ||
774 | num_sent = num_sent_size[peer_nr]; | ||
775 | num_received = num_received_size[peer_nr]; | ||
776 | break; | ||
777 | } | ||
778 | if (GNUNET_TIME_absolute_get_remaining (timeout[peer_nr]).rel_value_us > 0) | ||
779 | { | ||
780 | to_task[peer_nr] = GNUNET_SCHEDULER_add_at (timeout[peer_nr], | ||
781 | &latency_timeout, | ||
782 | cls); | ||
783 | return; | ||
784 | } | ||
785 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
786 | "Latency too high. Test failed. (Phase: %d. Sent: %lu, Received: %lu)\n", | ||
787 | phase[peer_nr], num_sent, num_received); | ||
788 | ret = 2; | ||
789 | GNUNET_SCHEDULER_shutdown (); | ||
790 | } | ||
791 | |||
792 | |||
793 | /** | ||
794 | * @brief Handle opening of queue | ||
795 | * | ||
796 | * Issues sending of test data | ||
797 | * | ||
798 | * Implements #GNUNET_TRANSPORT_TESTING_AddQueueCallback | ||
799 | * | ||
800 | * @param cls Closure | ||
801 | * @param tc_h Communicator handle | ||
802 | * @param tc_queue Handle to newly opened queue | ||
803 | */ | ||
804 | static void | ||
805 | add_queue_cb (void *cls, | ||
806 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h, | ||
807 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue * | ||
808 | tc_queue, | ||
809 | size_t mtu) | ||
810 | { | ||
811 | |||
812 | unsigned int peer_nr; | ||
813 | |||
814 | peer_nr = get_peer_nr (cls, GNUNET_NO); | ||
815 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
816 | "Handle %p add %u %u\n", | ||
817 | tc_h, | ||
818 | peer_nr, | ||
819 | get_peer_nr_from_tc (tc_h)); | ||
820 | if ((GNUNET_NO == bidirect) && (0 != strcmp ((char*) cls, cfg_peers_name[0]))) | ||
821 | { | ||
822 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
823 | "Queue available at receiving peer\n"); | ||
824 | return; // TODO? | ||
825 | } | ||
826 | else if (TP_INIT != phase[peer_nr]) | ||
827 | return; | ||
828 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
829 | "Queue established, starting test...\n"); | ||
830 | if (UINT16_MAX != mtu) /* Message header overhead */ | ||
831 | long_message_size = mtu - sizeof(struct GNUNET_TRANSPORT_SendMessageTo) | ||
832 | - sizeof(struct GNUNET_MessageHeader); | ||
833 | else | ||
834 | long_message_size = LONG_MESSAGE_SIZE; | ||
835 | timeout[peer_nr] = GNUNET_TIME_relative_to_absolute ( | ||
836 | GNUNET_TIME_relative_multiply ( | ||
837 | GNUNET_TIME_UNIT_SECONDS, | ||
838 | TIMEOUT_MULTIPLIER)); | ||
839 | GNUNET_assert (NULL == to_task[peer_nr]); | ||
840 | to_task[peer_nr] = GNUNET_SCHEDULER_add_delayed ( | ||
841 | GNUNET_TIME_relative_multiply ( | ||
842 | GNUNET_TIME_UNIT_SECONDS, | ||
843 | TIMEOUT_MULTIPLIER), | ||
844 | &latency_timeout, | ||
845 | tc_h); | ||
846 | choose_phase (tc_h); | ||
847 | } | ||
848 | |||
849 | |||
850 | static void | ||
851 | update_avg_latency (const char *payload, unsigned int peer_nr) | ||
852 | { | ||
853 | struct GNUNET_TIME_AbsoluteNBO *ts_n; | ||
854 | struct GNUNET_TIME_Absolute ts; | ||
855 | struct GNUNET_TIME_Relative latency; | ||
856 | size_t num_received = 0; | ||
857 | |||
858 | ts_n = (struct GNUNET_TIME_AbsoluteNBO *) payload; | ||
859 | ts = GNUNET_TIME_absolute_ntoh (*ts_n); | ||
860 | latency = GNUNET_TIME_absolute_get_duration (ts); | ||
861 | |||
862 | switch (phase[peer_nr]) | ||
863 | { | ||
864 | case TP_INIT: | ||
865 | GNUNET_assert (0); | ||
866 | break; | ||
867 | case TP_BURST_SHORT: | ||
868 | num_received = num_received_short[peer_nr]; | ||
869 | break; | ||
870 | case TP_BURST_LONG: | ||
871 | num_received = num_received_long[peer_nr]; | ||
872 | break; | ||
873 | case TP_SIZE_CHECK: | ||
874 | num_received = num_received_size[peer_nr]; | ||
875 | break; | ||
876 | } | ||
877 | if (1 >= num_received) | ||
878 | avg_latency[peer_nr] = latency.rel_value_us; | ||
879 | else | ||
880 | avg_latency[peer_nr] = ((avg_latency[peer_nr] * (num_received - 1)) | ||
881 | + latency.rel_value_us) | ||
882 | / num_received; | ||
883 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
884 | "Latency of received packet by peer %u: %s with avg latency %" PRIu64 | ||
885 | "\n", | ||
886 | peer_nr, | ||
887 | GNUNET_STRINGS_relative_time_to_string (latency, | ||
888 | GNUNET_YES), | ||
889 | avg_latency[peer_nr]); | ||
890 | } | ||
891 | |||
892 | |||
893 | static void | ||
894 | load_phase_config () | ||
895 | { | ||
896 | |||
897 | phase_short[0] = GNUNET_CONFIGURATION_get_value_yesno (cfg_peers[0], | ||
898 | TEST_SECTION, | ||
899 | "PHASE_SHORT"); | ||
900 | if (GNUNET_SYSERR == phase_short[0]) | ||
901 | phase_short[0] = GNUNET_YES; | ||
902 | |||
903 | phase_short[1] = phase_short[0]; | ||
904 | |||
905 | phase_long[0] = GNUNET_CONFIGURATION_get_value_yesno (cfg_peers[0], | ||
906 | TEST_SECTION, | ||
907 | "PHASE_LONG"); | ||
908 | |||
909 | if (GNUNET_SYSERR == phase_long[0]) | ||
910 | phase_long[0] = GNUNET_YES; | ||
911 | |||
912 | phase_long[1] = phase_long[0]; | ||
913 | |||
914 | phase_size[0] = GNUNET_CONFIGURATION_get_value_yesno (cfg_peers[0], | ||
915 | TEST_SECTION, | ||
916 | "PHASE_SIZE"); | ||
917 | |||
918 | if (GNUNET_SYSERR == phase_size[0]) | ||
919 | phase_size[0] = GNUNET_YES; | ||
920 | |||
921 | phase_size[1] = phase_size[0]; | ||
922 | } | ||
923 | |||
924 | |||
925 | /** | ||
926 | * @brief Handle an incoming message | ||
927 | * | ||
928 | * Implements #GNUNET_TRANSPORT_TESTING_IncomingMessageCallback | ||
929 | |||
930 | * @param cls Closure | ||
931 | * @param tc_h Handle to the receiving communicator | ||
932 | * @param msg Received message | ||
933 | */ | ||
934 | static void | ||
935 | incoming_message_cb ( | ||
936 | void *cls, | ||
937 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h, | ||
938 | const char *payload, | ||
939 | size_t payload_len) | ||
940 | { | ||
941 | unsigned int peer_nr; | ||
942 | |||
943 | |||
944 | peer_nr = get_peer_nr (cls, GNUNET_YES); | ||
945 | |||
946 | if ((GNUNET_NO == bidirect) && (0 != strcmp ((char*) cls, | ||
947 | cfg_peers_name[NUM_PEERS - 1]))) | ||
948 | { | ||
949 | LOG (GNUNET_ERROR_TYPE_WARNING, | ||
950 | "unexpected receiver...\n"); | ||
951 | return; | ||
952 | } | ||
953 | /* Reset timeout */ | ||
954 | timeout[peer_nr] = GNUNET_TIME_relative_to_absolute ( | ||
955 | GNUNET_TIME_relative_multiply ( | ||
956 | GNUNET_TIME_UNIT_SECONDS, | ||
957 | TIMEOUT_MULTIPLIER)); | ||
958 | switch (phase[peer_nr]) | ||
959 | { | ||
960 | case TP_INIT: | ||
961 | GNUNET_break (0); | ||
962 | break; | ||
963 | case TP_BURST_SHORT: | ||
964 | { | ||
965 | GNUNET_assert (SHORT_MESSAGE_SIZE == payload_len); | ||
966 | num_received_short[peer_nr]++; | ||
967 | |||
968 | update_avg_latency (payload, peer_nr); | ||
969 | if ((num_sent_short[peer_nr] == burst_packets_short) && | ||
970 | (num_received_short[peer_nr] == | ||
971 | burst_packets_short)) | ||
972 | { | ||
973 | finish_phase_short (peer_nr); | ||
974 | } | ||
975 | break; | ||
976 | } | ||
977 | case TP_BURST_LONG: | ||
978 | { | ||
979 | if (long_message_size != payload_len) | ||
980 | { | ||
981 | LOG (GNUNET_ERROR_TYPE_WARNING, | ||
982 | "Ignoring packet with wrong length (have: %lu, want: %lu)\n", | ||
983 | payload_len, long_message_size); | ||
984 | return; // Ignore | ||
985 | } | ||
986 | num_received_long[peer_nr]++; | ||
987 | |||
988 | update_avg_latency (payload, peer_nr); | ||
989 | if ((num_sent_long[peer_nr] == burst_packets_long) && | ||
990 | (num_received_long[peer_nr] > | ||
991 | burst_packets_long)) | ||
992 | { | ||
993 | finish_phase_long (peer_nr); | ||
994 | } | ||
995 | break; | ||
996 | } | ||
997 | case TP_SIZE_CHECK: | ||
998 | { | ||
999 | size_t max_size = 64000; | ||
1000 | |||
1001 | GNUNET_assert (TP_SIZE_CHECK == phase[peer_nr]); | ||
1002 | if (LONG_MESSAGE_SIZE != long_message_size) | ||
1003 | max_size = long_message_size; | ||
1004 | num_received_size[peer_nr]++; | ||
1005 | update_avg_latency (payload, peer_nr); | ||
1006 | if ((GNUNET_YES == phase_size[peer_nr]) && (num_received_size[peer_nr] >= | ||
1007 | (max_size) / 10) ) | ||
1008 | { | ||
1009 | LOG (GNUNET_ERROR_TYPE_MESSAGE, | ||
1010 | "Size packet test for peer %u done.\n", | ||
1011 | peer_nr); | ||
1012 | LOG (GNUNET_ERROR_TYPE_MESSAGE, | ||
1013 | "%lu/%lu packets -- avg latency: %llu us\n", | ||
1014 | (unsigned long) num_received_size[peer_nr], | ||
1015 | (unsigned long) num_sent_size[peer_nr], | ||
1016 | (unsigned long long) avg_latency[peer_nr]); | ||
1017 | iterations_left[peer_nr]--; | ||
1018 | phase_size[peer_nr] = GNUNET_NO; | ||
1019 | if (0 != iterations_left[peer_nr]) | ||
1020 | { | ||
1021 | // start_short = GNUNET_TIME_absolute_get (); | ||
1022 | // phase = TP_BURST_SHORT; | ||
1023 | num_received_size[peer_nr] = 0; | ||
1024 | num_sent_size[peer_nr] = 0; | ||
1025 | avg_latency[peer_nr] = 0; | ||
1026 | num_sent_short[peer_nr] = 0; | ||
1027 | num_sent_long[peer_nr] = 0; | ||
1028 | num_received_short[peer_nr] = 0; | ||
1029 | num_received_long[peer_nr] = 0; | ||
1030 | // short_test (NULL); | ||
1031 | if (((PEER_A == peer_nr) && finished[PEER_B]) || ((PEER_B == | ||
1032 | peer_nr) && | ||
1033 | finished[PEER_A])) | ||
1034 | { | ||
1035 | load_phase_config (); | ||
1036 | } | ||
1037 | } | ||
1038 | choose_phase (get_tc_h (peer_nr)); | ||
1039 | } | ||
1040 | break; | ||
1041 | } | ||
1042 | } | ||
1043 | } | ||
1044 | |||
1045 | |||
1046 | static void | ||
1047 | do_shutdown (void *cls) | ||
1048 | { | ||
1049 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
1050 | "shutting down test.\n"); | ||
1051 | |||
1052 | for (unsigned int i = 0; i < NUM_PEERS; i++) | ||
1053 | { | ||
1054 | if (NULL != box_stats[i]) | ||
1055 | { | ||
1056 | GNUNET_STATISTICS_get_cancel (box_stats[i]); | ||
1057 | box_stats[i] = NULL; | ||
1058 | } | ||
1059 | if (NULL != rekey_stats[i]) | ||
1060 | { | ||
1061 | GNUNET_STATISTICS_get_cancel (rekey_stats[i]); | ||
1062 | rekey_stats[i] = NULL; | ||
1063 | } | ||
1064 | if (NULL != to_task[i]) | ||
1065 | { | ||
1066 | GNUNET_SCHEDULER_cancel (to_task[i]); | ||
1067 | to_task[i] = NULL; | ||
1068 | } | ||
1069 | GNUNET_STATISTICS_destroy (stats[i], GNUNET_YES); | ||
1070 | GNUNET_TRANSPORT_TESTING_transport_communicator_service_stop (tc_hs[i]); | ||
1071 | } | ||
1072 | } | ||
1073 | |||
1074 | |||
1075 | /** | ||
1076 | * @brief Main function called by the scheduler | ||
1077 | * | ||
1078 | * @param cls Closure - Handle to confiation | ||
1079 | */ | ||
1080 | static void | ||
1081 | run (void *cls) | ||
1082 | { | ||
1083 | ret = 0; | ||
1084 | // num_received = 0; | ||
1085 | // num_sent = 0; | ||
1086 | for (unsigned int i = 0; i < NUM_PEERS; i++) | ||
1087 | { | ||
1088 | tc_hs[i] = GNUNET_TRANSPORT_TESTING_transport_communicator_service_start ( | ||
1089 | "transport", | ||
1090 | communicator_binary, | ||
1091 | cfg_peers_name[i], | ||
1092 | &peer_id[i], | ||
1093 | &communicator_available_cb, | ||
1094 | &add_address_cb, | ||
1095 | &queue_create_reply_cb, | ||
1096 | &add_queue_cb, | ||
1097 | &incoming_message_cb, | ||
1098 | &handle_backchannel_cb, | ||
1099 | cfg_peers_name[i]); /* cls */ | ||
1100 | |||
1101 | if ((0 == strcmp ("udp", communicator_name)) && ((0 == strcmp ("rekey", | ||
1102 | test_name)) | ||
1103 | || | ||
1104 | (0 == strcmp ( | ||
1105 | "backchannel", | ||
1106 | test_name))) ) | ||
1107 | { | ||
1108 | stats[i] = GNUNET_STATISTICS_create ("communicator-udp", | ||
1109 | cfg_peers[i]); | ||
1110 | } | ||
1111 | else if ((0 == strcmp ("tcp", communicator_name)) && (0 == strcmp ("rekey", | ||
1112 | test_name))) | ||
1113 | { | ||
1114 | stats[i] = GNUNET_STATISTICS_create ("communicator-tcp", | ||
1115 | cfg_peers[i]); | ||
1116 | } | ||
1117 | else if ((0 == strcmp ("bidirect", test_name))) | ||
1118 | { | ||
1119 | bidirect = GNUNET_YES; | ||
1120 | } | ||
1121 | } | ||
1122 | GNUNET_SCHEDULER_add_shutdown (&do_shutdown, | ||
1123 | NULL); | ||
1124 | } | ||
1125 | |||
1126 | |||
1127 | int | ||
1128 | main (int argc, | ||
1129 | char *const *argv) | ||
1130 | { | ||
1131 | struct GNUNET_CRYPTO_EddsaPrivateKey *private_key; | ||
1132 | char *test_mode; | ||
1133 | char *cfg_peer; | ||
1134 | |||
1135 | iterations_left[0] = TOTAL_ITERATIONS; | ||
1136 | iterations_left[1] = TOTAL_ITERATIONS; | ||
1137 | phase[0] = TP_INIT; | ||
1138 | phase[1] = TP_INIT; | ||
1139 | ret = 1; | ||
1140 | test_name = GNUNET_STRINGS_get_suffix_from_binary_name (argv[0]); | ||
1141 | communicator_name = strchr (test_name, '-'); | ||
1142 | communicator_name[0] = '\0'; | ||
1143 | communicator_name++; | ||
1144 | test_mode = test_name; | ||
1145 | |||
1146 | GNUNET_asprintf (&communicator_binary, | ||
1147 | "gnunet-communicator-%s", | ||
1148 | communicator_name); | ||
1149 | |||
1150 | if (GNUNET_OK != | ||
1151 | GNUNET_log_setup ("test_communicator_basic", | ||
1152 | "DEBUG", | ||
1153 | NULL)) | ||
1154 | { | ||
1155 | fprintf (stderr, "Unable to setup log\n"); | ||
1156 | GNUNET_break (0); | ||
1157 | return 2; | ||
1158 | } | ||
1159 | for (unsigned int i = 0; i < NUM_PEERS; i++) | ||
1160 | { | ||
1161 | GNUNET_asprintf ((&cfg_peer), | ||
1162 | "test_communicator_%s_%s_peer%u.conf", | ||
1163 | communicator_name, test_mode, i + 1); | ||
1164 | cfg_peers_name[i] = cfg_peer; | ||
1165 | cfg_peers[i] = GNUNET_CONFIGURATION_create (); | ||
1166 | if (GNUNET_YES == | ||
1167 | GNUNET_DISK_file_test (cfg_peers_name[i])) | ||
1168 | { | ||
1169 | if (GNUNET_SYSERR == | ||
1170 | GNUNET_CONFIGURATION_load (cfg_peers[i], | ||
1171 | cfg_peers_name[i])) | ||
1172 | { | ||
1173 | fprintf (stderr, | ||
1174 | "Malformed configuration file `%s', exiting ...\n", | ||
1175 | cfg_peers_name[i]); | ||
1176 | return 1; | ||
1177 | } | ||
1178 | } | ||
1179 | else | ||
1180 | { | ||
1181 | if (GNUNET_SYSERR == | ||
1182 | GNUNET_CONFIGURATION_load (cfg_peers[i], | ||
1183 | NULL)) | ||
1184 | { | ||
1185 | fprintf (stderr, | ||
1186 | "Configuration file %s does not exist, exiting ...\n", | ||
1187 | cfg_peers_name[i]); | ||
1188 | return 1; | ||
1189 | } | ||
1190 | } | ||
1191 | private_key = | ||
1192 | GNUNET_CRYPTO_eddsa_key_create_from_configuration (cfg_peers[i]); | ||
1193 | if (NULL == private_key) | ||
1194 | { | ||
1195 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
1196 | "Unable to get peer ID\n"); | ||
1197 | return 1; | ||
1198 | } | ||
1199 | GNUNET_CRYPTO_eddsa_key_get_public (private_key, | ||
1200 | &peer_id[i].public_key); | ||
1201 | GNUNET_free (private_key); | ||
1202 | LOG (GNUNET_ERROR_TYPE_INFO, | ||
1203 | "Identity of peer %u is %s\n", | ||
1204 | i, | ||
1205 | GNUNET_i2s_full (&peer_id[i])); | ||
1206 | } | ||
1207 | if (GNUNET_OK != | ||
1208 | GNUNET_CONFIGURATION_get_value_number (cfg_peers[0], | ||
1209 | TEST_SECTION, | ||
1210 | "ALLOWED_PACKET_LOSS_SHORT", | ||
1211 | &allowed_packet_loss_short)) | ||
1212 | allowed_packet_loss_short = ALLOWED_PACKET_LOSS; | ||
1213 | if (GNUNET_OK != | ||
1214 | GNUNET_CONFIGURATION_get_value_number (cfg_peers[0], | ||
1215 | TEST_SECTION, | ||
1216 | "ALLOWED_PACKET_LOSS_LONG", | ||
1217 | &allowed_packet_loss_long)) | ||
1218 | allowed_packet_loss_long = ALLOWED_PACKET_LOSS; | ||
1219 | if (GNUNET_OK != | ||
1220 | GNUNET_CONFIGURATION_get_value_number (cfg_peers[0], | ||
1221 | TEST_SECTION, | ||
1222 | "BURST_PACKETS_SHORT", | ||
1223 | &burst_packets_short)) | ||
1224 | burst_packets_short = BURST_PACKETS; | ||
1225 | if (GNUNET_OK != | ||
1226 | GNUNET_CONFIGURATION_get_value_number (cfg_peers[0], | ||
1227 | TEST_SECTION, | ||
1228 | "BURST_PACKETS_LONG", | ||
1229 | &burst_packets_long)) | ||
1230 | burst_packets_long = BURST_PACKETS; | ||
1231 | if (GNUNET_OK != | ||
1232 | GNUNET_CONFIGURATION_get_value_number (cfg_peers[0], | ||
1233 | TEST_SECTION, | ||
1234 | "DELAY_SHORT", | ||
1235 | &delay_short_value)) | ||
1236 | delay_short = DEFAULT_DELAY; | ||
1237 | else | ||
1238 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MICROSECONDS, | ||
1239 | delay_short_value); | ||
1240 | if (GNUNET_OK != | ||
1241 | GNUNET_CONFIGURATION_get_value_number (cfg_peers[0], | ||
1242 | TEST_SECTION, | ||
1243 | "DELAY_SHORT", | ||
1244 | &delay_long_value)) | ||
1245 | delay_long = DEFAULT_DELAY; | ||
1246 | else | ||
1247 | GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MICROSECONDS, | ||
1248 | delay_long_value); | ||
1249 | load_phase_config (); | ||
1250 | LOG (GNUNET_ERROR_TYPE_MESSAGE, "Starting test...\n"); | ||
1251 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
1252 | "argv[0]: %s\n", | ||
1253 | argv[0]); | ||
1254 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
1255 | "test_name: %s\n", | ||
1256 | test_name); | ||
1257 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
1258 | "communicator_name: %s\n", | ||
1259 | communicator_name); | ||
1260 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
1261 | "communicator_binary: %s\n", | ||
1262 | communicator_binary); | ||
1263 | GNUNET_SCHEDULER_run (&run, | ||
1264 | NULL); | ||
1265 | return ret; | ||
1266 | } | ||
diff --git a/src/service/transport/test_communicator_quic_basic_peer1.conf b/src/service/transport/test_communicator_quic_basic_peer1.conf new file mode 100644 index 000000000..d43752ecc --- /dev/null +++ b/src/service/transport/test_communicator_quic_basic_peer1.conf | |||
@@ -0,0 +1,45 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | |||
3 | [PATHS] | ||
4 | GNUNET_TEST_HOME = $GNUNET_TMP/test-communicator-unix-1/ | ||
5 | |||
6 | [PEER] | ||
7 | PRIVATE_KEY = $GNUNET_TMP/test-communicator-unix-1/private.key | ||
8 | |||
9 | [transport-tcp] | ||
10 | PORT = 52400 | ||
11 | |||
12 | [transport-udp] | ||
13 | PORT = 52401 | ||
14 | |||
15 | [transport-quic] | ||
16 | PORT = 52402 | ||
17 | |||
18 | [transport] | ||
19 | #PORT = 60000 | ||
20 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-transport_test_1.sock | ||
21 | |||
22 | [nat] | ||
23 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-1/nat.sock | ||
24 | ENABLE_IPSCAN = YES | ||
25 | |||
26 | [peerstore] | ||
27 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-1/peerstore.sock | ||
28 | |||
29 | [statistics] | ||
30 | PORT = 22461 | ||
31 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-statistics_test_1.sock | ||
32 | |||
33 | [resolver] | ||
34 | PORT = 62089 | ||
35 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-resolver_test_1.sock | ||
36 | |||
37 | [communicator-udp] | ||
38 | # PREFIX = valgrind --leak-check=full --track-origins=yes --log-file=/tmp/vg_com1 | ||
39 | BINDTO = 60002 | ||
40 | DISABLE_V6 = YES | ||
41 | MAX_QUEUE_LENGTH=5000 | ||
42 | |||
43 | [communicator-quic] | ||
44 | BINDTO = 60002 | ||
45 | DISABLE_V6 = YES | ||
diff --git a/src/service/transport/test_communicator_quic_basic_peer2.conf b/src/service/transport/test_communicator_quic_basic_peer2.conf new file mode 100644 index 000000000..4fabc8a86 --- /dev/null +++ b/src/service/transport/test_communicator_quic_basic_peer2.conf | |||
@@ -0,0 +1,45 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | |||
3 | [PATHS] | ||
4 | GNUNET_TEST_HOME = $GNUNET_TMP/test-gnunetd-plugin-transport/ | ||
5 | |||
6 | [PEER] | ||
7 | PRIVATE_KEY = $GNUNET_TMP/test-communicator-unix-2/private.key | ||
8 | |||
9 | [transport-tcp] | ||
10 | PORT = 52400 | ||
11 | |||
12 | [transport-udp] | ||
13 | PORT = 52402 | ||
14 | |||
15 | [transport-quic] | ||
16 | PORT = 52403 | ||
17 | |||
18 | [transport] | ||
19 | #PORT = 60001 | ||
20 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-transport_test_2.sock | ||
21 | |||
22 | [nat] | ||
23 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-2/nat.sock | ||
24 | |||
25 | |||
26 | [peerstore] | ||
27 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-2/peerstore.sock | ||
28 | |||
29 | [statistics] | ||
30 | PORT = 22462 | ||
31 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-statistics_test_2.sock | ||
32 | |||
33 | [resolver] | ||
34 | PORT = 62090 | ||
35 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-resolver_test_2.sock | ||
36 | |||
37 | [communicator-udp] | ||
38 | # PREFIX = valgrind --leak-check=full --track-origins=yes --log-file=/tmp/vg_com2 | ||
39 | BINDTO = 60003 | ||
40 | DISABLE_V6 = YES | ||
41 | MAX_QUEUE_LENGTH=5000 | ||
42 | |||
43 | [communicator-quic] | ||
44 | BINDTO = 60003 | ||
45 | DISABLE_V6 = YES \ No newline at end of file | ||
diff --git a/src/service/transport/test_communicator_tcp_basic_peer1.conf b/src/service/transport/test_communicator_tcp_basic_peer1.conf new file mode 100644 index 000000000..dbc227ac6 --- /dev/null +++ b/src/service/transport/test_communicator_tcp_basic_peer1.conf | |||
@@ -0,0 +1,48 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | |||
3 | [test-setup] | ||
4 | #PHASE_LONG=NO | ||
5 | #PHASE_SIZE=NO | ||
6 | #BURST_PACKETS_SHORT=1 | ||
7 | |||
8 | [PATHS] | ||
9 | GNUNET_TEST_HOME = $GNUNET_TMP/test-communicator-unix-1/ | ||
10 | |||
11 | [PEER] | ||
12 | PRIVATE_KEY = $GNUNET_TMP/test-communicator-unix-1/private.key | ||
13 | |||
14 | [transport-tcp] | ||
15 | PORT = 52400 | ||
16 | |||
17 | [transport-udp] | ||
18 | PORT = 52401 | ||
19 | |||
20 | [transport] | ||
21 | PORT = 60000 | ||
22 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-transport_test_1.sock | ||
23 | |||
24 | [nat] | ||
25 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-1/nat.sock | ||
26 | |||
27 | [peerstore] | ||
28 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-1/peerstore.sock | ||
29 | |||
30 | [statistics] | ||
31 | PORT = 22461 | ||
32 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-statistics_test_1.sock | ||
33 | |||
34 | [communicator-unix] | ||
35 | UNIXPATH = $GNUNET_RUNTIME_DIR/test_gnunet-communicator-unix_1.sock | ||
36 | |||
37 | [communicator-tcp] | ||
38 | #PREFIX = xterm -geometry 100x85 -T peer1 -e gdb --args | ||
39 | #PREFIX = valgrind --leak-check=full --track-origins=yes | ||
40 | BINDTO = 60002 | ||
41 | DISABLE_V6 = YES | ||
42 | |||
43 | [communicator-udp] | ||
44 | BINDTO = 60002 | ||
45 | |||
46 | [resolver] | ||
47 | PORT = 62089 | ||
48 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-resolver_test_1.sock | ||
diff --git a/src/service/transport/test_communicator_tcp_basic_peer2.conf b/src/service/transport/test_communicator_tcp_basic_peer2.conf new file mode 100644 index 000000000..b73157f0d --- /dev/null +++ b/src/service/transport/test_communicator_tcp_basic_peer2.conf | |||
@@ -0,0 +1,44 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | |||
3 | [PATHS] | ||
4 | GNUNET_TEST_HOME = $GNUNET_TMP/test-gnunetd-plugin-transport/ | ||
5 | |||
6 | [PEER] | ||
7 | PRIVATE_KEY = $GNUNET_TMP/test-communicator-unix-2/private.key | ||
8 | |||
9 | |||
10 | [transport-tcp] | ||
11 | PORT = 52400 | ||
12 | |||
13 | [transport-udp] | ||
14 | PORT = 52401 | ||
15 | |||
16 | [transport] | ||
17 | PORT = 60001 | ||
18 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-transport_test_2.sock | ||
19 | |||
20 | [nat] | ||
21 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-2/nat.sock | ||
22 | |||
23 | [peerstore] | ||
24 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-2/peerstore.sock | ||
25 | |||
26 | [statistics] | ||
27 | PORT = 22462 | ||
28 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-statistics_test_2.sock | ||
29 | |||
30 | [communicator-unix] | ||
31 | UNIXPATH = $GNUNET_RUNTIME_DIR/test_gnunet-communicator-unix_2.sock | ||
32 | |||
33 | [communicator-tcp] | ||
34 | #PREFIX = xterm -geometry 100x85 -T peer2 -e gdb --args | ||
35 | #PREFIX = valgrind --leak-check=full --track-origins=yes | ||
36 | BINDTO = 60003 | ||
37 | DISABLE_V6 = YES | ||
38 | |||
39 | [communicator-udp] | ||
40 | BINDTO = 60003 | ||
41 | |||
42 | [resolver] | ||
43 | PORT = 62090 | ||
44 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-resolver_test_2.sock | ||
diff --git a/src/service/transport/test_communicator_tcp_bidirect_peer1.conf b/src/service/transport/test_communicator_tcp_bidirect_peer1.conf new file mode 100644 index 000000000..dbc227ac6 --- /dev/null +++ b/src/service/transport/test_communicator_tcp_bidirect_peer1.conf | |||
@@ -0,0 +1,48 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | |||
3 | [test-setup] | ||
4 | #PHASE_LONG=NO | ||
5 | #PHASE_SIZE=NO | ||
6 | #BURST_PACKETS_SHORT=1 | ||
7 | |||
8 | [PATHS] | ||
9 | GNUNET_TEST_HOME = $GNUNET_TMP/test-communicator-unix-1/ | ||
10 | |||
11 | [PEER] | ||
12 | PRIVATE_KEY = $GNUNET_TMP/test-communicator-unix-1/private.key | ||
13 | |||
14 | [transport-tcp] | ||
15 | PORT = 52400 | ||
16 | |||
17 | [transport-udp] | ||
18 | PORT = 52401 | ||
19 | |||
20 | [transport] | ||
21 | PORT = 60000 | ||
22 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-transport_test_1.sock | ||
23 | |||
24 | [nat] | ||
25 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-1/nat.sock | ||
26 | |||
27 | [peerstore] | ||
28 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-1/peerstore.sock | ||
29 | |||
30 | [statistics] | ||
31 | PORT = 22461 | ||
32 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-statistics_test_1.sock | ||
33 | |||
34 | [communicator-unix] | ||
35 | UNIXPATH = $GNUNET_RUNTIME_DIR/test_gnunet-communicator-unix_1.sock | ||
36 | |||
37 | [communicator-tcp] | ||
38 | #PREFIX = xterm -geometry 100x85 -T peer1 -e gdb --args | ||
39 | #PREFIX = valgrind --leak-check=full --track-origins=yes | ||
40 | BINDTO = 60002 | ||
41 | DISABLE_V6 = YES | ||
42 | |||
43 | [communicator-udp] | ||
44 | BINDTO = 60002 | ||
45 | |||
46 | [resolver] | ||
47 | PORT = 62089 | ||
48 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-resolver_test_1.sock | ||
diff --git a/src/service/transport/test_communicator_tcp_bidirect_peer2.conf b/src/service/transport/test_communicator_tcp_bidirect_peer2.conf new file mode 100644 index 000000000..b73157f0d --- /dev/null +++ b/src/service/transport/test_communicator_tcp_bidirect_peer2.conf | |||
@@ -0,0 +1,44 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | |||
3 | [PATHS] | ||
4 | GNUNET_TEST_HOME = $GNUNET_TMP/test-gnunetd-plugin-transport/ | ||
5 | |||
6 | [PEER] | ||
7 | PRIVATE_KEY = $GNUNET_TMP/test-communicator-unix-2/private.key | ||
8 | |||
9 | |||
10 | [transport-tcp] | ||
11 | PORT = 52400 | ||
12 | |||
13 | [transport-udp] | ||
14 | PORT = 52401 | ||
15 | |||
16 | [transport] | ||
17 | PORT = 60001 | ||
18 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-transport_test_2.sock | ||
19 | |||
20 | [nat] | ||
21 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-2/nat.sock | ||
22 | |||
23 | [peerstore] | ||
24 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-2/peerstore.sock | ||
25 | |||
26 | [statistics] | ||
27 | PORT = 22462 | ||
28 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-statistics_test_2.sock | ||
29 | |||
30 | [communicator-unix] | ||
31 | UNIXPATH = $GNUNET_RUNTIME_DIR/test_gnunet-communicator-unix_2.sock | ||
32 | |||
33 | [communicator-tcp] | ||
34 | #PREFIX = xterm -geometry 100x85 -T peer2 -e gdb --args | ||
35 | #PREFIX = valgrind --leak-check=full --track-origins=yes | ||
36 | BINDTO = 60003 | ||
37 | DISABLE_V6 = YES | ||
38 | |||
39 | [communicator-udp] | ||
40 | BINDTO = 60003 | ||
41 | |||
42 | [resolver] | ||
43 | PORT = 62090 | ||
44 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-resolver_test_2.sock | ||
diff --git a/src/service/transport/test_communicator_tcp_rekey_peer1.conf b/src/service/transport/test_communicator_tcp_rekey_peer1.conf new file mode 100644 index 000000000..82fbf353a --- /dev/null +++ b/src/service/transport/test_communicator_tcp_rekey_peer1.conf | |||
@@ -0,0 +1,45 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | |||
3 | [PATHS] | ||
4 | GNUNET_TEST_HOME = $GNUNET_TMP/test-communicator-unix-1/ | ||
5 | |||
6 | [PEER] | ||
7 | PRIVATE_KEY = $GNUNET_TMP/test-communicator-unix-1/private.key | ||
8 | |||
9 | [transport-tcp] | ||
10 | PORT = 52400 | ||
11 | |||
12 | [transport-udp] | ||
13 | PORT = 52401 | ||
14 | |||
15 | [transport] | ||
16 | PORT = 60000 | ||
17 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-transport_test_1.sock | ||
18 | |||
19 | [nat] | ||
20 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-1/nat.sock | ||
21 | ENABLE_IPSCAN = YES | ||
22 | |||
23 | [peerstore] | ||
24 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-1/peerstore.sock | ||
25 | |||
26 | [statistics] | ||
27 | PORT = 22461 | ||
28 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-statistics_test_1.sock | ||
29 | |||
30 | [resolver] | ||
31 | PORT = 62089 | ||
32 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-resolver_test_1.sock | ||
33 | |||
34 | [communicator-unix] | ||
35 | UNIXPATH = $GNUNET_RUNTIME_DIR/test_gnunet-communicator-unix_1.sock | ||
36 | |||
37 | [communicator-tcp] | ||
38 | #PREFIX = xterm -geometry 100x85 -T peer1 -e gdb --args | ||
39 | #PREFIX = valgrind --leak-check=full --track-origins=yes | ||
40 | BINDTO = 60002 | ||
41 | DISABLE_V6 = YES | ||
42 | REKEY_INTERVAL = 100ms | ||
43 | |||
44 | [communicator-udp] | ||
45 | BINDTO = 60002 | ||
diff --git a/src/service/transport/test_communicator_tcp_rekey_peer2.conf b/src/service/transport/test_communicator_tcp_rekey_peer2.conf new file mode 100644 index 000000000..086a996ae --- /dev/null +++ b/src/service/transport/test_communicator_tcp_rekey_peer2.conf | |||
@@ -0,0 +1,45 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | |||
3 | [PATHS] | ||
4 | GNUNET_TEST_HOME = $GNUNET_TMP/test-gnunetd-plugin-transport/ | ||
5 | |||
6 | [PEER] | ||
7 | PRIVATE_KEY = $GNUNET_TMP/test-communicator-unix-2/private.key | ||
8 | |||
9 | |||
10 | [transport-tcp] | ||
11 | PORT = 52400 | ||
12 | |||
13 | [transport-udp] | ||
14 | PORT = 52401 | ||
15 | |||
16 | [transport] | ||
17 | PORT = 60001 | ||
18 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-transport_test_2.sock | ||
19 | |||
20 | [nat] | ||
21 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-2/nat.sock | ||
22 | |||
23 | [peerstore] | ||
24 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-2/peerstore.sock | ||
25 | |||
26 | [statistics] | ||
27 | PORT = 22462 | ||
28 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-statistics_test_2.sock | ||
29 | |||
30 | [resolver] | ||
31 | PORT = 62090 | ||
32 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-resolver_test_2.sock | ||
33 | |||
34 | [communicator-unix] | ||
35 | UNIXPATH = $GNUNET_RUNTIME_DIR/test_gnunet-communicator-unix_2.sock | ||
36 | |||
37 | [communicator-tcp] | ||
38 | #PREFIX = xterm -geometry 100x85 -T peer2 -e gdb --args | ||
39 | #PREFIX = valgrind --leak-check=full --track-origins=yes | ||
40 | BINDTO = 60003 | ||
41 | DISABLE_V6 = YES | ||
42 | REKEY_INTERVAL = 100ms | ||
43 | |||
44 | [communicator-udp] | ||
45 | BINDTO = 60003 | ||
diff --git a/src/service/transport/test_communicator_udp_backchannel_peer1.conf b/src/service/transport/test_communicator_udp_backchannel_peer1.conf new file mode 100644 index 000000000..65f33bd6b --- /dev/null +++ b/src/service/transport/test_communicator_udp_backchannel_peer1.conf | |||
@@ -0,0 +1,48 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | |||
3 | [PATHS] | ||
4 | GNUNET_TEST_HOME = $GNUNET_TMP/test-communicator-unix-1/ | ||
5 | |||
6 | [PEER] | ||
7 | PRIVATE_KEY = $GNUNET_TMP/test-communicator-unix-1/private.key | ||
8 | |||
9 | [transport-tcp] | ||
10 | PORT = 52400 | ||
11 | |||
12 | [transport-udp] | ||
13 | PORT = 52401 | ||
14 | |||
15 | [transport] | ||
16 | PORT = 60000 | ||
17 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-transport_test_1.sock | ||
18 | |||
19 | [nat] | ||
20 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-1/nat.sock | ||
21 | ENABLE_IPSCAN = YES | ||
22 | |||
23 | [peerstore] | ||
24 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-1/peerstore.sock | ||
25 | |||
26 | [statistics] | ||
27 | PORT = 22461 | ||
28 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-statistics_test_1.sock | ||
29 | |||
30 | [resolver] | ||
31 | PORT = 62089 | ||
32 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-resolver_test_1.sock | ||
33 | |||
34 | [communicator-unix] | ||
35 | UNIXPATH = $GNUNET_RUNTIME_DIR/test_gnunet-communicator-unix_1.sock | ||
36 | |||
37 | [communicator-tcp] | ||
38 | BINDTO = 60002 | ||
39 | DISABLE_V6 = YES | ||
40 | |||
41 | [communicator-udp] | ||
42 | # PREFIX = valgrind --leak-check=full --track-origins=yes --log-file=/tmp/vg_comm1 | ||
43 | BINDTO = 60002 | ||
44 | DISABLE_V6 = YES | ||
45 | MAX_QUEUE_LENGTH=5000 | ||
46 | |||
47 | [communicator-test] | ||
48 | BACKCHANNEL_ENABLED = YES | ||
diff --git a/src/service/transport/test_communicator_udp_backchannel_peer2.conf b/src/service/transport/test_communicator_udp_backchannel_peer2.conf new file mode 100644 index 000000000..9875af724 --- /dev/null +++ b/src/service/transport/test_communicator_udp_backchannel_peer2.conf | |||
@@ -0,0 +1,48 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | |||
3 | [PATHS] | ||
4 | GNUNET_TEST_HOME = $GNUNET_TMP/test-gnunetd-plugin-transport/ | ||
5 | |||
6 | [PEER] | ||
7 | PRIVATE_KEY = $GNUNET_TMP/test-communicator-unix-2/private.key | ||
8 | |||
9 | |||
10 | [transport-tcp] | ||
11 | PORT = 52400 | ||
12 | |||
13 | [transport-udp] | ||
14 | PORT = 52401 | ||
15 | |||
16 | [transport] | ||
17 | PORT = 60001 | ||
18 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-transport_test_2.sock | ||
19 | |||
20 | [nat] | ||
21 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-2/nat.sock | ||
22 | |||
23 | [peerstore] | ||
24 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-2/peerstore.sock | ||
25 | |||
26 | [statistics] | ||
27 | PORT = 22462 | ||
28 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-statistics_test_2.sock | ||
29 | |||
30 | [resolver] | ||
31 | PORT = 62090 | ||
32 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-resolver_test_2.sock | ||
33 | |||
34 | [communicator-unix] | ||
35 | UNIXPATH = $GNUNET_RUNTIME_DIR/test_gnunet-communicator-unix_2.sock | ||
36 | |||
37 | [communicator-tcp] | ||
38 | BINDTO = 60003 | ||
39 | DISABLE_V6 = YES | ||
40 | |||
41 | [communicator-udp] | ||
42 | # PREFIX = valgrind --leak-check=full --track-origins=yes --log-file=/tmp/vg_comm2 | ||
43 | BINDTO = 60003 | ||
44 | DISABLE_V6 = YES | ||
45 | MAX_QUEUE_LENGTH=5000 | ||
46 | |||
47 | [communicator-test] | ||
48 | BACKCHANNEL_ENABLED = YES | ||
diff --git a/src/service/transport/test_communicator_udp_basic_peer1.conf b/src/service/transport/test_communicator_udp_basic_peer1.conf new file mode 100644 index 000000000..83c599ae5 --- /dev/null +++ b/src/service/transport/test_communicator_udp_basic_peer1.conf | |||
@@ -0,0 +1,40 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | |||
3 | [PATHS] | ||
4 | GNUNET_TEST_HOME = $GNUNET_TMP/test-communicator-unix-1/ | ||
5 | |||
6 | [PEER] | ||
7 | PRIVATE_KEY = $GNUNET_TMP/test-communicator-unix-1/private.key | ||
8 | |||
9 | [transport-tcp] | ||
10 | PORT = 52400 | ||
11 | |||
12 | [transport-udp] | ||
13 | PORT = 52401 | ||
14 | |||
15 | [transport] | ||
16 | #PORT = 60000 | ||
17 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-transport_test_1.sock | ||
18 | |||
19 | [nat] | ||
20 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-1/nat.sock | ||
21 | ENABLE_IPSCAN = YES | ||
22 | |||
23 | [peerstore] | ||
24 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-1/peerstore.sock | ||
25 | |||
26 | [statistics] | ||
27 | PORT = 22461 | ||
28 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-statistics_test_1.sock | ||
29 | |||
30 | [resolver] | ||
31 | PORT = 62089 | ||
32 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-resolver_test_1.sock | ||
33 | |||
34 | [communicator-udp] | ||
35 | # PREFIX = valgrind --leak-check=full --track-origins=yes --log-file=/tmp/vg_com1 | ||
36 | #PREFIX = valgrind --tool=callgrind | ||
37 | BINDTO = 60002 | ||
38 | DISABLE_V6 = YES | ||
39 | MAX_QUEUE_LENGTH=5000 | ||
40 | |||
diff --git a/src/service/transport/test_communicator_udp_basic_peer2.conf b/src/service/transport/test_communicator_udp_basic_peer2.conf new file mode 100644 index 000000000..781bfa7da --- /dev/null +++ b/src/service/transport/test_communicator_udp_basic_peer2.conf | |||
@@ -0,0 +1,39 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | |||
3 | [PATHS] | ||
4 | GNUNET_TEST_HOME = $GNUNET_TMP/test-gnunetd-plugin-transport/ | ||
5 | |||
6 | [PEER] | ||
7 | PRIVATE_KEY = $GNUNET_TMP/test-communicator-unix-2/private.key | ||
8 | |||
9 | |||
10 | [transport-tcp] | ||
11 | PORT = 52400 | ||
12 | |||
13 | [transport-udp] | ||
14 | PORT = 52402 | ||
15 | |||
16 | [transport] | ||
17 | #PORT = 60001 | ||
18 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-transport_test_2.sock | ||
19 | |||
20 | [nat] | ||
21 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-2/nat.sock | ||
22 | |||
23 | |||
24 | [peerstore] | ||
25 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-2/peerstore.sock | ||
26 | |||
27 | [statistics] | ||
28 | PORT = 22462 | ||
29 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-statistics_test_2.sock | ||
30 | |||
31 | [resolver] | ||
32 | PORT = 62090 | ||
33 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-resolver_test_2.sock | ||
34 | |||
35 | [communicator-udp] | ||
36 | # PREFIX = valgrind --leak-check=full --track-origins=yes --log-file=/tmp/vg_com2 | ||
37 | BINDTO = 60003 | ||
38 | DISABLE_V6 = YES | ||
39 | MAX_QUEUE_LENGTH=5000 | ||
diff --git a/src/service/transport/test_communicator_udp_rekey_peer1.conf b/src/service/transport/test_communicator_udp_rekey_peer1.conf new file mode 100644 index 000000000..305dd3b84 --- /dev/null +++ b/src/service/transport/test_communicator_udp_rekey_peer1.conf | |||
@@ -0,0 +1,53 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | |||
3 | [PATHS] | ||
4 | GNUNET_TEST_HOME = $GNUNET_TMP/test-communicator-unix-1/ | ||
5 | |||
6 | [PEER] | ||
7 | PRIVATE_KEY = $GNUNET_TMP/test-communicator-unix-1/private.key | ||
8 | |||
9 | [transport-tcp] | ||
10 | PORT = 52400 | ||
11 | |||
12 | [transport-udp] | ||
13 | PORT = 52401 | ||
14 | |||
15 | [transport] | ||
16 | PORT = 60000 | ||
17 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-transport_test_1.sock | ||
18 | |||
19 | [nat] | ||
20 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-1/nat.sock | ||
21 | ENABLE_IPSCAN = YES | ||
22 | |||
23 | [peerstore] | ||
24 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-1/peerstore.sock | ||
25 | |||
26 | [statistics] | ||
27 | PORT = 22461 | ||
28 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-statistics_test_1.sock | ||
29 | |||
30 | [resolver] | ||
31 | PORT = 62089 | ||
32 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-resolver_test_1.sock | ||
33 | |||
34 | [communicator-unix] | ||
35 | UNIXPATH = $GNUNET_RUNTIME_DIR/test_gnunet-communicator-unix_1.sock | ||
36 | |||
37 | [communicator-tcp] | ||
38 | BINDTO = 60002 | ||
39 | DISABLE_V6 = YES | ||
40 | REKEY_INTERVAL = 100ms | ||
41 | |||
42 | [communicator-udp] | ||
43 | #PREFIX = xterm -geometry 100x85 -T peer1 -e gdb --args | ||
44 | #PREFIX = valgrind --leak-check=full --track-origins=yes | ||
45 | #PREFIX = valgrind --tool=callgrind | ||
46 | BINDTO = 60002 | ||
47 | DISABLE_V6 = YES | ||
48 | MAX_QUEUE_LENGTH=5000 | ||
49 | REKEY_INTERVAL = 100ms | ||
50 | REKEY_MAX_BYTES=500KiB | ||
51 | |||
52 | [communicator-test] | ||
53 | BACKCHANNEL_ENABLED = YES | ||
diff --git a/src/service/transport/test_communicator_udp_rekey_peer2.conf b/src/service/transport/test_communicator_udp_rekey_peer2.conf new file mode 100644 index 000000000..9bce572aa --- /dev/null +++ b/src/service/transport/test_communicator_udp_rekey_peer2.conf | |||
@@ -0,0 +1,52 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | |||
3 | [PATHS] | ||
4 | GNUNET_TEST_HOME = $GNUNET_TMP/test-gnunetd-plugin-transport/ | ||
5 | |||
6 | [PEER] | ||
7 | PRIVATE_KEY = $GNUNET_TMP/test-communicator-unix-2/private.key | ||
8 | |||
9 | |||
10 | [transport-tcp] | ||
11 | PORT = 52400 | ||
12 | |||
13 | [transport-udp] | ||
14 | PORT = 52401 | ||
15 | |||
16 | [transport] | ||
17 | PORT = 60001 | ||
18 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-transport_test_2.sock | ||
19 | |||
20 | [nat] | ||
21 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-2/nat.sock | ||
22 | |||
23 | [peerstore] | ||
24 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-2/peerstore.sock | ||
25 | |||
26 | [statistics] | ||
27 | PORT = 22462 | ||
28 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-statistics_test_2.sock | ||
29 | |||
30 | [resolver] | ||
31 | PORT = 62090 | ||
32 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-resolver_test_2.sock | ||
33 | |||
34 | [communicator-unix] | ||
35 | UNIXPATH = $GNUNET_RUNTIME_DIR/test_gnunet-communicator-unix_2.sock | ||
36 | |||
37 | [communicator-tcp] | ||
38 | BINDTO = 60003 | ||
39 | DISABLE_V6 = YES | ||
40 | REKEY_INTERVAL = 100ms | ||
41 | |||
42 | [communicator-udp] | ||
43 | #PREFIX = xterm -geometry 100x85 -T peer1 -e gdb --args | ||
44 | #PREFIX = valgrind --leak-check=full --track-origins=yes | ||
45 | BINDTO = 60003 | ||
46 | DISABLE_V6 = YES | ||
47 | MAX_QUEUE_LENGTH=5000 | ||
48 | REKEY_INTERVAL = 100ms | ||
49 | REKEY_MAX_BYTES=500KiB | ||
50 | |||
51 | [communicator-test] | ||
52 | BACKCHANNEL_ENABLED = YES | ||
diff --git a/src/service/transport/test_communicator_unix_basic_peer1.conf b/src/service/transport/test_communicator_unix_basic_peer1.conf new file mode 100644 index 000000000..13ba2d16b --- /dev/null +++ b/src/service/transport/test_communicator_unix_basic_peer1.conf | |||
@@ -0,0 +1,43 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | |||
3 | [PATHS] | ||
4 | GNUNET_TEST_HOME = $GNUNET_TMP/test-communicator-unix-1/ | ||
5 | |||
6 | [PEER] | ||
7 | PRIVATE_KEY = $GNUNET_TMP/test-communicator-unix-1/private.key | ||
8 | |||
9 | [transport-tcp] | ||
10 | PORT = 52400 | ||
11 | |||
12 | [transport-udp] | ||
13 | PORT = 52401 | ||
14 | |||
15 | [transport] | ||
16 | PORT = 60000 | ||
17 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-transport_test_1.sock | ||
18 | |||
19 | [nat] | ||
20 | UNIXPATH = $GNUNET_TMP/communicator-unix-1/nat.sock | ||
21 | ENABLE_IPSCAN = YES | ||
22 | |||
23 | [peerstore] | ||
24 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-1/peerstore.sock | ||
25 | |||
26 | [statistics] | ||
27 | PORT = 22461 | ||
28 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-statistics_test_1.sock | ||
29 | |||
30 | [resolver] | ||
31 | PORT = 62089 | ||
32 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-resolver_test_1.sock | ||
33 | |||
34 | [communicator-unix] | ||
35 | #PREFIX = xterm -geometry 100x85 -T peer1 -e gdb --args | ||
36 | #PREFIX = valgrind --leak-check=full --track-origins=yes | ||
37 | UNIXPATH = $GNUNET_RUNTIME_DIR/communicator-unix-1.sock | ||
38 | |||
39 | [communicator-tcp] | ||
40 | BINDTO = 60002 | ||
41 | |||
42 | [communicator-udp] | ||
43 | BINDTO = 60002 | ||
diff --git a/src/service/transport/test_communicator_unix_basic_peer2.conf b/src/service/transport/test_communicator_unix_basic_peer2.conf new file mode 100644 index 000000000..727e844a7 --- /dev/null +++ b/src/service/transport/test_communicator_unix_basic_peer2.conf | |||
@@ -0,0 +1,43 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | |||
3 | [PATHS] | ||
4 | GNUNET_TEST_HOME = $GNUNET_TMP/test-gnunetd-plugin-transport/ | ||
5 | |||
6 | [PEER] | ||
7 | PRIVATE_KEY = $GNUNET_TMP/test-communicator-unix-2/private.key | ||
8 | |||
9 | |||
10 | [transport-tcp] | ||
11 | PORT = 52400 | ||
12 | |||
13 | [transport-udp] | ||
14 | PORT = 52401 | ||
15 | |||
16 | [transport] | ||
17 | PORT = 60001 | ||
18 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-transport_test_2.sock | ||
19 | |||
20 | [nat] | ||
21 | UNIXPATH = $GNUNET_TMP/communicator-unix-2/nat.sock | ||
22 | |||
23 | [peerstore] | ||
24 | UNIXPATH = $GNUNET_TMP/test-communicator-unix-2/peerstore.sock | ||
25 | |||
26 | [statistics] | ||
27 | PORT = 22462 | ||
28 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-statistics_test_2.sock | ||
29 | |||
30 | [resolver] | ||
31 | PORT = 62090 | ||
32 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-resolver_test_2.sock | ||
33 | |||
34 | [communicator-unix] | ||
35 | #PREFIX = xterm -geometry 100x85 -T peer2 -e gdb --args | ||
36 | #PREFIX = valgrind --leak-check=full --track-origins=yes | ||
37 | UNIXPATH = $GNUNET_RUNTIME_DIR/communicator-unix-2.sock | ||
38 | |||
39 | [communicator-tcp] | ||
40 | BINDTO = 60003 | ||
41 | |||
42 | [communicator-udp] | ||
43 | BINDTO = 60003 | ||
diff --git a/src/service/transport/test_delay b/src/service/transport/test_delay new file mode 100755 index 000000000..5f82b65fb --- /dev/null +++ b/src/service/transport/test_delay | |||
@@ -0,0 +1,19 @@ | |||
1 | #!/bin/sh | ||
2 | |||
3 | TEMP=$(getopt t: "$*") | ||
4 | |||
5 | if [ $? != 0 ] ; then | ||
6 | exit 1 | ||
7 | fi | ||
8 | |||
9 | eval set -- "$TEMP" | ||
10 | |||
11 | while true ; do | ||
12 | case "$1" in | ||
13 | (-t) sleep "$2" ; shift 2 ;; | ||
14 | (--) shift ; break ;; | ||
15 | (*) echo "Error parsing getopt output" ; exit 1 ;; | ||
16 | esac | ||
17 | done | ||
18 | echo "exec $@" | ||
19 | exec "$@" | ||
diff --git a/src/service/transport/test_plugin_hostkey b/src/service/transport/test_plugin_hostkey new file mode 100644 index 000000000..e7b1ad012 --- /dev/null +++ b/src/service/transport/test_plugin_hostkey | |||
Binary files differ | |||
diff --git a/src/service/transport/test_plugin_hostkey.ecc b/src/service/transport/test_plugin_hostkey.ecc new file mode 100644 index 000000000..18641b798 --- /dev/null +++ b/src/service/transport/test_plugin_hostkey.ecc | |||
@@ -0,0 +1 @@ | |||
‚”ˆÖ’ÛËy¢/HÒc ȃ§¿±;¼»f?¶@…~áJ \ No newline at end of file | |||
diff --git a/src/service/transport/test_tng_defaults.conf b/src/service/transport/test_tng_defaults.conf new file mode 100644 index 000000000..81dbb5bd7 --- /dev/null +++ b/src/service/transport/test_tng_defaults.conf | |||
@@ -0,0 +1,14 @@ | |||
1 | @INLINE@ ../../../contrib/conf/gnunet/no_forcestart.conf | ||
2 | |||
3 | [PATHS] | ||
4 | GNUNET_TEST_HOME = $GNUNET_TMP/test-tng/ | ||
5 | |||
6 | [transport] | ||
7 | # PREFIX = valgrind | ||
8 | |||
9 | [nat] | ||
10 | DISABLEV6 = NO | ||
11 | RETURN_LOCAL_ADDRESSES = YES | ||
12 | BINDTO = 127.0.0.1 | ||
13 | INTERNAL_ADDRESS = 127.0.0.1 | ||
14 | EXTERNAL_ADDRESS = 127.0.0.1 | ||
diff --git a/src/service/transport/test_transport_address_switch.c b/src/service/transport/test_transport_address_switch.c new file mode 100644 index 000000000..ce5117bd1 --- /dev/null +++ b/src/service/transport/test_transport_address_switch.c | |||
@@ -0,0 +1,433 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2009, 2010, 2011, 2016 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | /** | ||
21 | * @file transport/test_transport_address_switch.c | ||
22 | * @brief base test case for transport implementations | ||
23 | * | ||
24 | * This test case tests if peers can successfully switch addresses when | ||
25 | * connected for plugins supporting multiple addresses by monitoring transport's | ||
26 | * statistic values. | ||
27 | * | ||
28 | * This test starts 2 peers and connects them. When connected test messages | ||
29 | * are transmitted from peer 2 to peer 1. The test monitors transport's | ||
30 | * statistics values for information about address switch attempts. | ||
31 | * | ||
32 | * The test passes with success if one of the peers could successfully switch | ||
33 | * addresses in connected state and a test message was successfully transmitted | ||
34 | * after this switch. | ||
35 | * | ||
36 | * Since it is not possible to trigger an address switch from outside, | ||
37 | * the test returns "77" (skipped) when no address switching attempt | ||
38 | * takes place. It fails if an address switch attempt fails. | ||
39 | * | ||
40 | * NOTE: The test seems largely useless right now, as we simply NEVER | ||
41 | * switch addresses under the test conditions. However, it may be a | ||
42 | * good starting point for a future test. For now, it always times | ||
43 | * out and returns "77" (skipped), so we set the timeout suitably low. | ||
44 | */ | ||
45 | #include "platform.h" | ||
46 | #include "gnunet_transport_service.h" | ||
47 | #include "gnunet_ats_service.h" | ||
48 | #include "transport-testing.h" | ||
49 | |||
50 | |||
51 | /** | ||
52 | * Testcase timeout (set aggressively as we know this test doesn't work right now) | ||
53 | */ | ||
54 | #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30) | ||
55 | |||
56 | |||
57 | static struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc; | ||
58 | |||
59 | static struct GNUNET_SCHEDULER_Task *measure_task; | ||
60 | |||
61 | |||
62 | /** | ||
63 | * Statistics we track per peer. | ||
64 | */ | ||
65 | struct PeerStats | ||
66 | { | ||
67 | struct GNUNET_STATISTICS_Handle *stat; | ||
68 | |||
69 | unsigned int addresses_avail; | ||
70 | |||
71 | unsigned int switch_attempts; | ||
72 | |||
73 | unsigned int switch_success; | ||
74 | |||
75 | unsigned int switch_fail; | ||
76 | }; | ||
77 | |||
78 | static struct PeerStats stats[2]; | ||
79 | |||
80 | /* Amount of data transferred since last switch attempt */ | ||
81 | static unsigned long long bytes_sent_after_switch; | ||
82 | |||
83 | static unsigned long long bytes_recv_after_switch; | ||
84 | |||
85 | |||
86 | static int | ||
87 | stat_start_attempt_cb (void *cls, | ||
88 | const char *subsystem, | ||
89 | const char *name, | ||
90 | uint64_t value, | ||
91 | int is_persistent) | ||
92 | { | ||
93 | struct PeerStats *stat = cls; | ||
94 | |||
95 | stat->switch_attempts++; | ||
96 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Switch attempted (%p)", stat); | ||
97 | bytes_recv_after_switch = 0; | ||
98 | bytes_sent_after_switch = 0; | ||
99 | |||
100 | return GNUNET_OK; | ||
101 | } | ||
102 | |||
103 | |||
104 | static int | ||
105 | stat_success_attempt_cb (void *cls, | ||
106 | const char *subsystem, | ||
107 | const char *name, | ||
108 | uint64_t value, | ||
109 | int is_persistent) | ||
110 | { | ||
111 | struct PeerStats *stat = cls; | ||
112 | |||
113 | stat->switch_success++; | ||
114 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Switch succeeded (%p)", stat); | ||
115 | return GNUNET_OK; | ||
116 | } | ||
117 | |||
118 | |||
119 | static int | ||
120 | stat_fail_attempt_cb (void *cls, | ||
121 | const char *subsystem, | ||
122 | const char *name, | ||
123 | uint64_t value, | ||
124 | int is_persistent) | ||
125 | { | ||
126 | struct PeerStats *stat = cls; | ||
127 | |||
128 | if (value == 0) | ||
129 | return GNUNET_OK; | ||
130 | |||
131 | stat->switch_fail++; | ||
132 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Switch failed (%p)", stat); | ||
133 | return GNUNET_OK; | ||
134 | } | ||
135 | |||
136 | |||
137 | static int | ||
138 | stat_addresses_available (void *cls, | ||
139 | const char *subsystem, | ||
140 | const char *name, | ||
141 | uint64_t value, | ||
142 | int is_persistent) | ||
143 | { | ||
144 | struct PeerStats *stat = cls; | ||
145 | |||
146 | stat->addresses_avail++; | ||
147 | return GNUNET_OK; | ||
148 | } | ||
149 | |||
150 | |||
151 | /** | ||
152 | * List of statistics entries we care about. | ||
153 | */ | ||
154 | static struct WatchEntry | ||
155 | { | ||
156 | /** | ||
157 | * Name of the statistic we watch. | ||
158 | */ | ||
159 | const char *stat_name; | ||
160 | |||
161 | /** | ||
162 | * Handler to register; | ||
163 | */ | ||
164 | GNUNET_STATISTICS_Iterator stat_handler; | ||
165 | } watches[] = | ||
166 | { { "# Attempts to switch addresses", &stat_start_attempt_cb }, | ||
167 | { "# Successful attempts to switch addresses", &stat_success_attempt_cb }, | ||
168 | { "# Failed attempts to switch addresses (failed to send CONNECT CONT)", | ||
169 | &stat_fail_attempt_cb }, | ||
170 | { "# Failed attempts to switch addresses (failed to send CONNECT)", | ||
171 | &stat_fail_attempt_cb }, | ||
172 | { "# Failed attempts to switch addresses (no response)", | ||
173 | &stat_fail_attempt_cb }, | ||
174 | { "# transport addresses", &stat_addresses_available }, | ||
175 | { NULL, NULL } }; | ||
176 | |||
177 | |||
178 | static void | ||
179 | custom_shutdown (void *cls) | ||
180 | { | ||
181 | int result; | ||
182 | |||
183 | if (NULL != measure_task) | ||
184 | { | ||
185 | GNUNET_SCHEDULER_cancel (measure_task); | ||
186 | measure_task = NULL; | ||
187 | } | ||
188 | if (0 == stats[0].switch_attempts + stats[1].switch_attempts) | ||
189 | { | ||
190 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
191 | "Test did not work, as peers didn't switch (flawed testcase)!\n"); | ||
192 | ccc->global_ret = 77; | ||
193 | } | ||
194 | else | ||
195 | { | ||
196 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
197 | "Fail (timeout)! No transmission after switch! Stopping peers\n"); | ||
198 | ccc->global_ret = 77; /* GNUNET_SYSERR; */ | ||
199 | } | ||
200 | |||
201 | /* stop statistics */ | ||
202 | for (unsigned int i = 0; i < 2; i++) | ||
203 | { | ||
204 | if (NULL != stats[i].stat) | ||
205 | { | ||
206 | for (unsigned int j = 0; NULL != watches[j].stat_name; j++) | ||
207 | GNUNET_assert (GNUNET_OK == | ||
208 | GNUNET_STATISTICS_watch_cancel (stats[i].stat, | ||
209 | "transport", | ||
210 | watches[j].stat_name, | ||
211 | watches[j].stat_handler, | ||
212 | &stats[i])); | ||
213 | GNUNET_STATISTICS_destroy (stats[i].stat, GNUNET_NO); | ||
214 | stats[i].stat = NULL; | ||
215 | } | ||
216 | } | ||
217 | |||
218 | result = 0; | ||
219 | fprintf (stderr, "\n"); | ||
220 | if (stats[0].switch_attempts > 0) | ||
221 | { | ||
222 | fprintf ( | ||
223 | stderr, | ||
224 | "Peer 1 tried %u times to switch and succeeded %u times, failed %u times\n", | ||
225 | stats[0].switch_attempts, | ||
226 | stats[0].switch_success, | ||
227 | stats[0].switch_fail); | ||
228 | if (stats[0].switch_success != stats[0].switch_attempts) | ||
229 | { | ||
230 | GNUNET_break (0); | ||
231 | result++; | ||
232 | } | ||
233 | } | ||
234 | else if (stats[0].addresses_avail > 1) | ||
235 | { | ||
236 | fprintf (stderr, | ||
237 | "Peer 1 had %u addresses available, but did not try to switch\n", | ||
238 | stats[0].addresses_avail); | ||
239 | } | ||
240 | if (stats[1].switch_attempts > 0) | ||
241 | { | ||
242 | fprintf ( | ||
243 | stderr, | ||
244 | "Peer 2 tried %u times to switch and succeeded %u times, failed %u times\n", | ||
245 | stats[1].switch_attempts, | ||
246 | stats[1].switch_success, | ||
247 | stats[1].switch_fail); | ||
248 | if (stats[1].switch_success != stats[1].switch_attempts) | ||
249 | { | ||
250 | GNUNET_break (0); | ||
251 | result++; | ||
252 | } | ||
253 | } | ||
254 | else if (stats[1].addresses_avail > 1) | ||
255 | { | ||
256 | fprintf (stderr, | ||
257 | "Peer 2 had %u addresses available, but did not try to switch\n", | ||
258 | stats[1].addresses_avail); | ||
259 | } | ||
260 | |||
261 | if (((stats[0].switch_attempts > 0) || (stats[1].switch_attempts > 0)) && | ||
262 | (bytes_sent_after_switch == 0)) | ||
263 | { | ||
264 | fprintf (stderr, "No data sent after switching!\n"); | ||
265 | GNUNET_break (0); | ||
266 | result++; | ||
267 | } | ||
268 | if (((stats[0].switch_attempts > 0) || (stats[1].switch_attempts > 0)) && | ||
269 | (bytes_recv_after_switch == 0)) | ||
270 | { | ||
271 | fprintf (stderr, "No data received after switching!\n"); | ||
272 | GNUNET_break (0); | ||
273 | result++; | ||
274 | } | ||
275 | #if 0 | ||
276 | /* This test is not really expected to pass right now... */ | ||
277 | if (0 != result) | ||
278 | ccc->global_ret = GNUNET_SYSERR; | ||
279 | #endif | ||
280 | } | ||
281 | |||
282 | |||
283 | static void | ||
284 | notify_receive (void *cls, | ||
285 | struct GNUNET_TRANSPORT_TESTING_PeerContext *receiver, | ||
286 | const struct GNUNET_PeerIdentity *sender, | ||
287 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *hdr) | ||
288 | { | ||
289 | if (GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE != ntohs (hdr->header.type)) | ||
290 | return; | ||
291 | |||
292 | { | ||
293 | char *ps = GNUNET_strdup (GNUNET_i2s (&receiver->id)); | ||
294 | |||
295 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
296 | "Peer %u (`%s') got message %u of size %u from peer (`%s')\n", | ||
297 | receiver->no, | ||
298 | ps, | ||
299 | (uint32_t) ntohl (hdr->num), | ||
300 | ntohs (hdr->header.size), | ||
301 | GNUNET_i2s (sender)); | ||
302 | GNUNET_free (ps); | ||
303 | } | ||
304 | if (((stats[0].switch_attempts >= 1) || (stats[1].switch_attempts >= 1)) && | ||
305 | (stats[0].switch_attempts == | ||
306 | stats[0].switch_fail + stats[0].switch_success) && | ||
307 | (stats[1].switch_attempts == | ||
308 | stats[1].switch_fail + stats[1].switch_success)) | ||
309 | { | ||
310 | bytes_recv_after_switch += ntohs (hdr->header.size); | ||
311 | if ((bytes_sent_after_switch > 0) && (bytes_recv_after_switch > 0)) | ||
312 | { | ||
313 | /* A peer switched addresses and sent and received data after the | ||
314 | * switch operations */ | ||
315 | GNUNET_SCHEDULER_shutdown (); | ||
316 | } | ||
317 | } | ||
318 | } | ||
319 | |||
320 | |||
321 | static void | ||
322 | notify_send (void *cls) | ||
323 | { | ||
324 | static uint32_t cnt; | ||
325 | |||
326 | GNUNET_assert ( | ||
327 | GNUNET_OK == | ||
328 | GNUNET_TRANSPORT_TESTING_send (ccc->p[1], | ||
329 | ccc->p[0], | ||
330 | GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE, | ||
331 | GNUNET_TRANSPORT_TESTING_LARGE_MESSAGE_SIZE, | ||
332 | ++cnt, | ||
333 | ¬ify_send, | ||
334 | NULL)); | ||
335 | if (((stats[0].switch_attempts >= 1) || (stats[1].switch_attempts >= 1)) && | ||
336 | (stats[0].switch_attempts == | ||
337 | stats[0].switch_fail + stats[0].switch_success) && | ||
338 | (stats[1].switch_attempts == | ||
339 | stats[1].switch_fail + stats[1].switch_success)) | ||
340 | { | ||
341 | bytes_sent_after_switch += GNUNET_TRANSPORT_TESTING_LARGE_MESSAGE_SIZE; | ||
342 | } | ||
343 | } | ||
344 | |||
345 | |||
346 | static void | ||
347 | progress_indicator (void *cls) | ||
348 | { | ||
349 | static int counter; | ||
350 | |||
351 | measure_task = NULL; | ||
352 | counter++; | ||
353 | if ((TIMEOUT.rel_value_us / 1000 / 1000LL) < counter) | ||
354 | { | ||
355 | fprintf (stderr, "%s", ".\n"); | ||
356 | } | ||
357 | else | ||
358 | { | ||
359 | fprintf (stderr, "%s", "."); | ||
360 | measure_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS, | ||
361 | &progress_indicator, | ||
362 | NULL); | ||
363 | } | ||
364 | } | ||
365 | |||
366 | |||
367 | static void | ||
368 | connected_cb (void *cls) | ||
369 | { | ||
370 | for (unsigned int i = 0; i < 2; i++) | ||
371 | { | ||
372 | stats[i].stat = GNUNET_STATISTICS_create ("transport", ccc->p[i]->cfg); | ||
373 | if (NULL == stats[i].stat) | ||
374 | { | ||
375 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
376 | "Fail! Could not create statistics for peers!\n"); | ||
377 | ccc->global_ret = GNUNET_SYSERR; | ||
378 | GNUNET_SCHEDULER_shutdown (); | ||
379 | return; | ||
380 | } | ||
381 | for (unsigned int j = 0; NULL != watches[j].stat_name; j++) | ||
382 | { | ||
383 | GNUNET_STATISTICS_watch (stats[i].stat, | ||
384 | "transport", | ||
385 | watches[j].stat_name, | ||
386 | watches[j].stat_handler, | ||
387 | &stats[i]); | ||
388 | } | ||
389 | } | ||
390 | /* Show progress */ | ||
391 | ccc->global_ret = GNUNET_OK; | ||
392 | measure_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS, | ||
393 | &progress_indicator, | ||
394 | NULL); | ||
395 | /* Peers are connected, start transmit test messages */ | ||
396 | GNUNET_assert ( | ||
397 | GNUNET_OK == | ||
398 | GNUNET_TRANSPORT_TESTING_send (ccc->p[1], | ||
399 | ccc->p[0], | ||
400 | GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE, | ||
401 | GNUNET_TRANSPORT_TESTING_LARGE_MESSAGE_SIZE, | ||
402 | 0, | ||
403 | ¬ify_send, | ||
404 | NULL)); | ||
405 | } | ||
406 | |||
407 | |||
408 | int | ||
409 | main (int argc, char *argv[]) | ||
410 | { | ||
411 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext my_ccc = | ||
412 | { .connect_continuation = &connected_cb, | ||
413 | .config_file = "test_transport_api_data.conf", | ||
414 | .rec = ¬ify_receive, | ||
415 | .nc = &GNUNET_TRANSPORT_TESTING_log_connect, | ||
416 | .shutdown_task = &custom_shutdown, | ||
417 | .timeout = TIMEOUT }; | ||
418 | |||
419 | ccc = &my_ccc; | ||
420 | int ret; | ||
421 | |||
422 | ret = GNUNET_TRANSPORT_TESTING_main (2, | ||
423 | &GNUNET_TRANSPORT_TESTING_connect_check, | ||
424 | ccc); | ||
425 | if (77 == ret) | ||
426 | return 77; | ||
427 | if (GNUNET_OK != ret) | ||
428 | return 1; | ||
429 | return 0; | ||
430 | } | ||
431 | |||
432 | |||
433 | /* end of test_transport_address_switch.c */ | ||
diff --git a/src/service/transport/test_transport_address_switch_tcp_peer1.conf b/src/service/transport/test_transport_address_switch_tcp_peer1.conf new file mode 100644 index 000000000..cfcbfe41c --- /dev/null +++ b/src/service/transport/test_transport_address_switch_tcp_peer1.conf | |||
@@ -0,0 +1,48 @@ | |||
1 | @INLINE@ template_cfg_peer1.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-p1/ | ||
4 | |||
5 | [ats] | ||
6 | UNSPECIFIED_QUOTA_IN = 8 KiB | ||
7 | UNSPECIFIED_QUOTA_OUT = 8 KiB | ||
8 | # LOOPBACK | ||
9 | LOOPBACK_QUOTA_IN = 8 KiB | ||
10 | LOOPBACK_QUOTA_OUT = 8 KiB | ||
11 | # LAN | ||
12 | LAN_QUOTA_IN = 8 KiB | ||
13 | LAN_QUOTA_OUT = 8 KiB | ||
14 | # WAN | ||
15 | WAN_QUOTA_IN = 8 KiB | ||
16 | WAN_QUOTA_OUT = 8 KiB | ||
17 | # WLAN | ||
18 | WLAN_QUOTA_IN = 8 KiB | ||
19 | WLAN_QUOTA_OUT = 8 KiB | ||
20 | # BLUETOOTH | ||
21 | BLUETOOTH_QUOTA_IN = 8 KiB | ||
22 | BLUETOOTH_QUOTA_OUT = 8 KiB | ||
23 | |||
24 | [transport-tcp] | ||
25 | PORT = 12000 | ||
26 | TIMEOUT = 5 s | ||
27 | |||
28 | [arm] | ||
29 | PORT = 12005 | ||
30 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-arm.sock | ||
31 | |||
32 | [statistics] | ||
33 | PORT = 12004 | ||
34 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-statistics.sock | ||
35 | |||
36 | [resolver] | ||
37 | PORT = 12003 | ||
38 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-resolver.sock | ||
39 | |||
40 | [peerinfo] | ||
41 | PORT = 12002 | ||
42 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-peerinfo.sock | ||
43 | |||
44 | [transport] | ||
45 | PORT = 12001 | ||
46 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-transport.sock | ||
47 | PLUGINS = tcp | ||
48 | |||
diff --git a/src/service/transport/test_transport_address_switch_tcp_peer2.conf b/src/service/transport/test_transport_address_switch_tcp_peer2.conf new file mode 100644 index 000000000..bda2354b6 --- /dev/null +++ b/src/service/transport/test_transport_address_switch_tcp_peer2.conf | |||
@@ -0,0 +1,48 @@ | |||
1 | @INLINE@ template_cfg_peer2.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-p2/ | ||
4 | |||
5 | [ats] | ||
6 | UNSPECIFIED_QUOTA_IN = 8 KiB | ||
7 | UNSPECIFIED_QUOTA_OUT = 8 KiB | ||
8 | # LOOPBACK | ||
9 | LOOPBACK_QUOTA_IN = 8 KiB | ||
10 | LOOPBACK_QUOTA_OUT = 8 KiB | ||
11 | # LAN | ||
12 | LAN_QUOTA_IN = 8 KiB | ||
13 | LAN_QUOTA_OUT = 8 KiB | ||
14 | # WAN | ||
15 | WAN_QUOTA_IN = 8 KiB | ||
16 | WAN_QUOTA_OUT = 8 KiB | ||
17 | # WLAN | ||
18 | WLAN_QUOTA_IN = 8 KiB | ||
19 | WLAN_QUOTA_OUT = 8 KiB | ||
20 | # BLUETOOTH | ||
21 | BLUETOOTH_QUOTA_IN = 8 KiB | ||
22 | BLUETOOTH_QUOTA_OUT = 8 KiB | ||
23 | |||
24 | [transport-tcp] | ||
25 | PORT = 12015 | ||
26 | TIMEOUT = 5 s | ||
27 | |||
28 | [arm] | ||
29 | PORT = 12014 | ||
30 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-arm.sock | ||
31 | |||
32 | [statistics] | ||
33 | PORT = 12013 | ||
34 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-statistics.sock | ||
35 | |||
36 | [resolver] | ||
37 | PORT = 12012 | ||
38 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-resolver.sock | ||
39 | |||
40 | [peerinfo] | ||
41 | PORT = 12011 | ||
42 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-peerinfo.sock | ||
43 | |||
44 | [transport] | ||
45 | PORT = 12010 | ||
46 | PLUGINS = tcp | ||
47 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-transport.sock | ||
48 | |||
diff --git a/src/service/transport/test_transport_address_switch_udp_peer1.conf b/src/service/transport/test_transport_address_switch_udp_peer1.conf new file mode 100644 index 000000000..bdc3a2253 --- /dev/null +++ b/src/service/transport/test_transport_address_switch_udp_peer1.conf | |||
@@ -0,0 +1,48 @@ | |||
1 | @INLINE@ template_cfg_peer1.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-p1/ | ||
4 | |||
5 | [ats] | ||
6 | UNSPECIFIED_QUOTA_IN = 8 KiB | ||
7 | UNSPECIFIED_QUOTA_OUT = 8 KiB | ||
8 | # LOOPBACK | ||
9 | LOOPBACK_QUOTA_IN = 8 KiB | ||
10 | LOOPBACK_QUOTA_OUT = 8 KiB | ||
11 | # LAN | ||
12 | LAN_QUOTA_IN = 8 KiB | ||
13 | LAN_QUOTA_OUT = 8 KiB | ||
14 | # WAN | ||
15 | WAN_QUOTA_IN = 8 KiB | ||
16 | WAN_QUOTA_OUT = 8 KiB | ||
17 | # WLAN | ||
18 | WLAN_QUOTA_IN = 8 KiB | ||
19 | WLAN_QUOTA_OUT = 8 KiB | ||
20 | # BLUETOOTH | ||
21 | BLUETOOTH_QUOTA_IN = 8 KiB | ||
22 | BLUETOOTH_QUOTA_OUT = 8 KiB | ||
23 | |||
24 | [transport-tcp] | ||
25 | PORT = 12000 | ||
26 | TIMEOUT = 5 s | ||
27 | |||
28 | [arm] | ||
29 | PORT = 12005 | ||
30 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-arm.sock | ||
31 | |||
32 | [statistics] | ||
33 | PORT = 12004 | ||
34 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-statistics.sock | ||
35 | |||
36 | [resolver] | ||
37 | PORT = 12003 | ||
38 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-resolver.sock | ||
39 | |||
40 | [peerinfo] | ||
41 | PORT = 12002 | ||
42 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-peerinfo.sock | ||
43 | |||
44 | [transport] | ||
45 | PORT = 12001 | ||
46 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-transport.sock | ||
47 | PLUGINS = udp | ||
48 | |||
diff --git a/src/service/transport/test_transport_address_switch_udp_peer2.conf b/src/service/transport/test_transport_address_switch_udp_peer2.conf new file mode 100644 index 000000000..ae6397db4 --- /dev/null +++ b/src/service/transport/test_transport_address_switch_udp_peer2.conf | |||
@@ -0,0 +1,48 @@ | |||
1 | @INLINE@ template_cfg_peer2.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-p2/ | ||
4 | |||
5 | [ats] | ||
6 | UNSPECIFIED_QUOTA_IN = 8 KiB | ||
7 | UNSPECIFIED_QUOTA_OUT = 8 KiB | ||
8 | # LOOPBACK | ||
9 | LOOPBACK_QUOTA_IN = 8 KiB | ||
10 | LOOPBACK_QUOTA_OUT = 8 KiB | ||
11 | # LAN | ||
12 | LAN_QUOTA_IN = 8 KiB | ||
13 | LAN_QUOTA_OUT = 8 KiB | ||
14 | # WAN | ||
15 | WAN_QUOTA_IN = 8 KiB | ||
16 | WAN_QUOTA_OUT = 8 KiB | ||
17 | # WLAN | ||
18 | WLAN_QUOTA_IN = 8 KiB | ||
19 | WLAN_QUOTA_OUT = 8 KiB | ||
20 | # BLUETOOTH | ||
21 | BLUETOOTH_QUOTA_IN = 8 KiB | ||
22 | BLUETOOTH_QUOTA_OUT = 8 KiB | ||
23 | |||
24 | [transport-tcp] | ||
25 | PORT = 12015 | ||
26 | TIMEOUT = 5 s | ||
27 | |||
28 | [arm] | ||
29 | PORT = 12014 | ||
30 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-arm.sock | ||
31 | |||
32 | [statistics] | ||
33 | PORT = 12013 | ||
34 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-statistics.sock | ||
35 | |||
36 | [resolver] | ||
37 | PORT = 12012 | ||
38 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-resolver.sock | ||
39 | |||
40 | [peerinfo] | ||
41 | PORT = 12011 | ||
42 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-peerinfo.sock | ||
43 | |||
44 | [transport] | ||
45 | PORT = 12010 | ||
46 | PLUGINS = udp | ||
47 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-transport.sock | ||
48 | |||
diff --git a/src/service/transport/test_transport_api.c b/src/service/transport/test_transport_api.c new file mode 100644 index 000000000..5f5e03a9e --- /dev/null +++ b/src/service/transport/test_transport_api.c | |||
@@ -0,0 +1,126 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2009, 2010, 2016 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | /** | ||
21 | * @file transport/test_transport_api.c | ||
22 | * @brief base test case for transport implementations | ||
23 | * @author Christian Grothoff | ||
24 | * | ||
25 | * This test case serves as a base for tcp, udp, and udp-nat | ||
26 | * transport test cases. Based on the executable being run | ||
27 | * the correct test case will be performed. Conservation of | ||
28 | * C code apparently. | ||
29 | */ | ||
30 | #include "platform.h" | ||
31 | #include "gnunet_transport_service.h" | ||
32 | #include "transport-testing.h" | ||
33 | |||
34 | /** | ||
35 | * How long until we give up on transmitting the message? | ||
36 | */ | ||
37 | #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30) | ||
38 | |||
39 | static struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc; | ||
40 | |||
41 | |||
42 | static void | ||
43 | notify_receive (void *cls, | ||
44 | struct GNUNET_TRANSPORT_TESTING_PeerContext *receiver, | ||
45 | const struct GNUNET_PeerIdentity *sender, | ||
46 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *message) | ||
47 | { | ||
48 | { | ||
49 | char *ps = GNUNET_strdup (GNUNET_i2s (&receiver->id)); | ||
50 | |||
51 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
52 | "Peer %u (`%s') received message of type %d and size %u size from peer %s!\n", | ||
53 | receiver->no, | ||
54 | ps, | ||
55 | ntohs (message->header.type), | ||
56 | ntohs (message->header.size), | ||
57 | GNUNET_i2s (sender)); | ||
58 | GNUNET_free (ps); | ||
59 | } | ||
60 | |||
61 | if ((GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE == ntohs (message->header.type)) && | ||
62 | (GNUNET_TRANSPORT_TESTING_LARGE_MESSAGE_SIZE == ntohs ( | ||
63 | message->header.size))) | ||
64 | { | ||
65 | ccc->global_ret = GNUNET_OK; | ||
66 | GNUNET_SCHEDULER_shutdown (); | ||
67 | } | ||
68 | else | ||
69 | { | ||
70 | GNUNET_break (0); | ||
71 | ccc->global_ret = GNUNET_SYSERR; | ||
72 | GNUNET_SCHEDULER_shutdown (); | ||
73 | } | ||
74 | } | ||
75 | |||
76 | |||
77 | /** | ||
78 | * Runs the test. | ||
79 | * | ||
80 | * @param argv the argv argument from main() | ||
81 | * @param bi_directional should we try to establish connections | ||
82 | * in both directions simultaneously? | ||
83 | */ | ||
84 | static int | ||
85 | test (char *argv[], | ||
86 | int bi_directional) | ||
87 | { | ||
88 | struct GNUNET_TRANSPORT_TESTING_SendClosure sc = { | ||
89 | .num_messages = 1 | ||
90 | }; | ||
91 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext my_ccc = { | ||
92 | .connect_continuation = &GNUNET_TRANSPORT_TESTING_large_send, | ||
93 | .connect_continuation_cls = &sc, | ||
94 | .config_file = "test_transport_api_data.conf", | ||
95 | .rec = ¬ify_receive, | ||
96 | .nc = &GNUNET_TRANSPORT_TESTING_log_connect, | ||
97 | .nd = &GNUNET_TRANSPORT_TESTING_log_disconnect, | ||
98 | .timeout = TIMEOUT, | ||
99 | .bi_directional = bi_directional | ||
100 | }; | ||
101 | |||
102 | ccc = &my_ccc; | ||
103 | sc.ccc = ccc; | ||
104 | if (GNUNET_OK != | ||
105 | GNUNET_TRANSPORT_TESTING_main (2, | ||
106 | &GNUNET_TRANSPORT_TESTING_connect_check, | ||
107 | ccc)) | ||
108 | return 1; | ||
109 | return 0; | ||
110 | } | ||
111 | |||
112 | |||
113 | int | ||
114 | main (int argc, | ||
115 | char *argv[]) | ||
116 | { | ||
117 | if ((0 != test (argv, | ||
118 | GNUNET_NO)) || | ||
119 | (0 != test (argv, | ||
120 | GNUNET_YES))) | ||
121 | return 1; | ||
122 | return 0; | ||
123 | } | ||
124 | |||
125 | |||
126 | /* end of test_transport_api.c */ | ||
diff --git a/src/service/transport/test_transport_api2.c b/src/service/transport/test_transport_api2.c new file mode 100644 index 000000000..4d423f7c2 --- /dev/null +++ b/src/service/transport/test_transport_api2.c | |||
@@ -0,0 +1,126 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2009, 2010, 2016 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | /** | ||
21 | * @file transport/test_transport_api.c | ||
22 | * @brief base test case for transport implementations | ||
23 | * @author Christian Grothoff | ||
24 | * | ||
25 | * This test case serves as a base for tcp, udp, and udp-nat | ||
26 | * transport test cases. Based on the executable being run | ||
27 | * the correct test case will be performed. Conservation of | ||
28 | * C code apparently. | ||
29 | */ | ||
30 | #include "platform.h" | ||
31 | // #include "gnunet_transport_service.h" | ||
32 | #include "transport-testing2.h" | ||
33 | |||
34 | /** | ||
35 | * How long until we give up on transmitting the message? | ||
36 | */ | ||
37 | #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30) | ||
38 | |||
39 | static struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc; | ||
40 | |||
41 | |||
42 | static void | ||
43 | notify_receive (void *cls, | ||
44 | struct GNUNET_TRANSPORT_TESTING_PeerContext *receiver, | ||
45 | const struct GNUNET_PeerIdentity *sender, | ||
46 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *message) | ||
47 | { | ||
48 | { | ||
49 | char *ps = GNUNET_strdup (GNUNET_i2s (&receiver->id)); | ||
50 | |||
51 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
52 | "Peer %u (`%s') received message of type %d and size %u size from peer %s!\n", | ||
53 | receiver->no, | ||
54 | ps, | ||
55 | ntohs (message->header.type), | ||
56 | ntohs (message->header.size), | ||
57 | GNUNET_i2s (sender)); | ||
58 | GNUNET_free (ps); | ||
59 | } | ||
60 | |||
61 | if ((GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE == ntohs (message->header.type)) && | ||
62 | (GNUNET_TRANSPORT_TESTING_LARGE_MESSAGE_SIZE == ntohs ( | ||
63 | message->header.size))) | ||
64 | { | ||
65 | ccc->global_ret = GNUNET_OK; | ||
66 | GNUNET_SCHEDULER_shutdown (); | ||
67 | } | ||
68 | else | ||
69 | { | ||
70 | GNUNET_break (0); | ||
71 | ccc->global_ret = GNUNET_SYSERR; | ||
72 | GNUNET_SCHEDULER_shutdown (); | ||
73 | } | ||
74 | } | ||
75 | |||
76 | |||
77 | /** | ||
78 | * Runs the test. | ||
79 | * | ||
80 | * @param argv the argv argument from main() | ||
81 | * @param bi_directional should we try to establish connections | ||
82 | * in both directions simultaneously? | ||
83 | */ | ||
84 | static int | ||
85 | test (char *argv[], | ||
86 | int bi_directional) | ||
87 | { | ||
88 | struct GNUNET_TRANSPORT_TESTING_SendClosure sc = { | ||
89 | .num_messages = 1 | ||
90 | }; | ||
91 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext my_ccc = { | ||
92 | .connect_continuation = &GNUNET_TRANSPORT_TESTING_large_send, | ||
93 | .connect_continuation_cls = &sc, | ||
94 | .config_file = "test_transport_api_data.conf", | ||
95 | .rec = ¬ify_receive, | ||
96 | .nc = &GNUNET_TRANSPORT_TESTING_log_connect, | ||
97 | .nd = &GNUNET_TRANSPORT_TESTING_log_disconnect, | ||
98 | .timeout = TIMEOUT, | ||
99 | .bi_directional = bi_directional | ||
100 | }; | ||
101 | |||
102 | ccc = &my_ccc; | ||
103 | sc.ccc = ccc; | ||
104 | if (GNUNET_OK != | ||
105 | GNUNET_TRANSPORT_TESTING_main (2, | ||
106 | &GNUNET_TRANSPORT_TESTING_connect_check, | ||
107 | ccc)) | ||
108 | return 1; | ||
109 | return 0; | ||
110 | } | ||
111 | |||
112 | |||
113 | int | ||
114 | main (int argc, | ||
115 | char *argv[]) | ||
116 | { | ||
117 | if ((0 != test (argv, | ||
118 | GNUNET_NO)) || | ||
119 | (0 != test (argv, | ||
120 | GNUNET_YES))) | ||
121 | return 1; | ||
122 | return 0; | ||
123 | } | ||
124 | |||
125 | |||
126 | /* end of test_transport_api.c */ | ||
diff --git a/src/service/transport/test_transport_api2_tcp_node1.conf b/src/service/transport/test_transport_api2_tcp_node1.conf new file mode 100644 index 000000000..463ec61d8 --- /dev/null +++ b/src/service/transport/test_transport_api2_tcp_node1.conf | |||
@@ -0,0 +1,35 @@ | |||
1 | @INLINE@ template_cfg_peer1.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-p1/ | ||
4 | |||
5 | [transport] | ||
6 | BINARY = gnunet-service-transport | ||
7 | PLUGINS = tcp | ||
8 | #PREFIX = valgrind --leak-check=full --track-origins=yes --trace-children=yes --log-file=$GNUNET_TEST_HOME/vg_peer1-%p | ||
9 | UNIXPATH = $GNUNET_RUNTIME_DIR/tng-p1.sock | ||
10 | |||
11 | [PEER] | ||
12 | PRIVATE_KEY = $GNUNET_RUNTIME_DIR/private.key | ||
13 | |||
14 | [communicator-tcp] | ||
15 | BINARY = gnunet-communicator-tcp | ||
16 | BINDTO = 192.168.15.1:60002 | ||
17 | DISABLE_V6 = YES | ||
18 | IMMEDIATE_START = YES | ||
19 | UNIXPATH = $GNUNET_RUNTIME_DIR/tcp-comm-p1.sock | ||
20 | #PREFIX = valgrind --leak-check=full --track-origins=yes --trace-children=yes --log-file=$GNUNET_TEST_HOME/vg_ctpeer1-%p | ||
21 | #PREFIX = xterm -geometry 100x85 -T peer1 -e gdb --args | ||
22 | |||
23 | [communicator-udp] | ||
24 | #PREFIX = valgrind --leak-check=full --track-origins=yes --trace-children=yes --log-file=$GNUNET_TEST_HOME/vg_cupeer1-%p | ||
25 | BINARY = gnunet-communicator-udp | ||
26 | BINDTO = 192.168.15.1:60002 | ||
27 | DISABLE_V6 = YES | ||
28 | IMMEDIATE_START = YES | ||
29 | UNIXPATH = $GNUNET_RUNTIME_DIR/udp-comm-p1.sock | ||
30 | |||
31 | [peerstore] | ||
32 | IMMEDIATE_START = YES | ||
33 | |||
34 | #[transport] | ||
35 | #PREFIX = valgrind | ||
diff --git a/src/service/transport/test_transport_api2_tcp_node2.conf b/src/service/transport/test_transport_api2_tcp_node2.conf new file mode 100644 index 000000000..b7f92869e --- /dev/null +++ b/src/service/transport/test_transport_api2_tcp_node2.conf | |||
@@ -0,0 +1,22 @@ | |||
1 | @INLINE@ template_cfg_peer2.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-p2/ | ||
4 | |||
5 | [transport] | ||
6 | BINARY = gnunet-service-transport | ||
7 | #PREFIX = valgrind --log-file=$GNUNET_TEST_HOME/vg_peer2-%p | ||
8 | UNIXPATH = $GNUNET_RUNTIME_DIR/tng-p2.sock | ||
9 | |||
10 | [communicator-tcp] | ||
11 | BINARY = gnunet-communicator-tcp | ||
12 | BINDTO = 192.168.15.2:60003 | ||
13 | DISABLE_V6 = YES | ||
14 | IMMEDIATE_START = YES | ||
15 | #PREFIX = valgrind --log-file=$GNUNET_TEST_HOME/vg_comm2-%p | ||
16 | UNIXPATH = $GNUNET_RUNTIME_DIR/tcp-comm-p2.sock | ||
17 | |||
18 | [peerstore] | ||
19 | IMMEDIATE_START = YES | ||
20 | |||
21 | #[transport] | ||
22 | #PREFIX = valgrind | ||
diff --git a/src/service/transport/test_transport_api2_tcp_peer1.conf b/src/service/transport/test_transport_api2_tcp_peer1.conf new file mode 100644 index 000000000..54ec9fd9f --- /dev/null +++ b/src/service/transport/test_transport_api2_tcp_peer1.conf | |||
@@ -0,0 +1,23 @@ | |||
1 | @INLINE@ template_cfg_peer1.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-p1/ | ||
4 | |||
5 | [transport] | ||
6 | BINARY = gnunet-service-transport | ||
7 | PLUGINS = tcp | ||
8 | #PREFIX = valgrind --log-file=$GNUNET_TEST_HOME/vg_peer1-%p | ||
9 | UNIXPATH = $GNUNET_RUNTIME_DIR/tng-p1.sock | ||
10 | |||
11 | [communicator-tcp] | ||
12 | BINARY = gnunet-communicator-tcp | ||
13 | BINDTO = 60002 | ||
14 | DISABLE_V6 = YES | ||
15 | IMMEDIATE_START = YES | ||
16 | UNIXPATH = $GNUNET_RUNTIME_DIR/tcp-comm-p1.sock | ||
17 | #PREFIX = valgrind --log-file=$GNUNET_TEST_HOME/vg_cpeer1-%p | ||
18 | |||
19 | [peerstore] | ||
20 | IMMEDIATE_START = YES | ||
21 | |||
22 | #[transport] | ||
23 | #PREFIX = valgrind | ||
diff --git a/src/service/transport/test_transport_api2_tcp_peer2.conf b/src/service/transport/test_transport_api2_tcp_peer2.conf new file mode 100644 index 000000000..7ae5ac697 --- /dev/null +++ b/src/service/transport/test_transport_api2_tcp_peer2.conf | |||
@@ -0,0 +1,22 @@ | |||
1 | @INLINE@ template_cfg_peer2.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-p2/ | ||
4 | |||
5 | [transport] | ||
6 | BINARY = gnunet-service-transport | ||
7 | #PREFIX = valgrind --log-file=$GNUNET_TEST_HOME/vg_peer2-%p | ||
8 | UNIXPATH = $GNUNET_RUNTIME_DIR/tng-p2.sock | ||
9 | |||
10 | [communicator-tcp] | ||
11 | BINARY = gnunet-communicator-tcp | ||
12 | BINDTO = 60003 | ||
13 | DISABLE_V6 = YES | ||
14 | IMMEDIATE_START = YES | ||
15 | #PREFIX = valgrind --log-file=$GNUNET_TEST_HOME/vg_comm2-%p | ||
16 | UNIXPATH = $GNUNET_RUNTIME_DIR/tcp-comm-p2.sock | ||
17 | |||
18 | [peerstore] | ||
19 | IMMEDIATE_START = YES | ||
20 | |||
21 | #[transport] | ||
22 | #PREFIX = valgrind | ||
diff --git a/src/service/transport/test_transport_api2_tng_node.conf b/src/service/transport/test_transport_api2_tng_node.conf new file mode 100644 index 000000000..c50ccf662 --- /dev/null +++ b/src/service/transport/test_transport_api2_tng_node.conf | |||
@@ -0,0 +1,40 @@ | |||
1 | @INLINE@ template_tng_cfg_peer1.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-p1/ | ||
4 | |||
5 | [transport] | ||
6 | BINARY = gnunet-service-transport | ||
7 | #PREFIX = valgrind --leak-check=full --track-origins=yes --trace-children=yes --log-file=$GNUNET_TEST_HOME/vg_peer1-%p | ||
8 | UNIXPATH = $GNUNET_RUNTIME_DIR/tng-p1.sock | ||
9 | |||
10 | [PEER] | ||
11 | PRIVATE_KEY = $GNUNET_RUNTIME_DIR/private.key | ||
12 | |||
13 | [communicator-tcp] | ||
14 | BINARY = gnunet-communicator-tcp | ||
15 | BINDTO = 192.168.15.1:60002 | ||
16 | DISABLE_V6 = YES | ||
17 | IMMEDIATE_START = YES | ||
18 | UNIXPATH = $GNUNET_RUNTIME_DIR/tcp-comm-p1.sock | ||
19 | #PREFIX = valgrind --leak-check=full --track-origins=yes --trace-children=yes --log-file=$GNUNET_TEST_HOME/vg_ctpeer1-%p | ||
20 | #PREFIX = xterm -geometry 100x85 -T peer1 -e gdb --args | ||
21 | |||
22 | [communicator-udp] | ||
23 | #PREFIX = valgrind --leak-check=full --track-origins=yes --trace-children=yes --log-file=$GNUNET_TEST_HOME/vg_cupeer1-%p | ||
24 | BINARY = gnunet-communicator-udp | ||
25 | BINDTO = 192.168.15.1:60002 | ||
26 | DISABLE_V6 = YES | ||
27 | IMMEDIATE_START = YES | ||
28 | UNIXPATH = $GNUNET_RUNTIME_DIR/udp-comm-p1.sock | ||
29 | |||
30 | [peerstore] | ||
31 | IMMEDIATE_START = YES | ||
32 | |||
33 | [topology] | ||
34 | IMMEDIATE_START = YES | ||
35 | |||
36 | [dht] | ||
37 | IMMEDIATE_START = YES | ||
38 | |||
39 | [fs] | ||
40 | IMMEDIATE_START = YES | ||
diff --git a/src/service/transport/test_transport_api_data.conf b/src/service/transport/test_transport_api_data.conf new file mode 100644 index 000000000..c06235a0a --- /dev/null +++ b/src/service/transport/test_transport_api_data.conf | |||
@@ -0,0 +1,9 @@ | |||
1 | @INLINE@ test_transport_defaults.conf | ||
2 | [PATHS] | ||
3 | |||
4 | [transport-tcp] | ||
5 | PORT = 52094 | ||
6 | |||
7 | [transport-udp] | ||
8 | PORT = 52094 | ||
9 | |||
diff --git a/src/service/transport/test_transport_api_monitor_peers.c b/src/service/transport/test_transport_api_monitor_peers.c new file mode 100644 index 000000000..c09e3782d --- /dev/null +++ b/src/service/transport/test_transport_api_monitor_peers.c | |||
@@ -0,0 +1,226 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2009, 2010, 2016 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | /** | ||
21 | * @file transport/test_transport_api_monitor_peers.c | ||
22 | * @brief base test case for transport peer monitor API | ||
23 | */ | ||
24 | #include "platform.h" | ||
25 | #include "gnunet_transport_service.h" | ||
26 | #include "transport-testing.h" | ||
27 | |||
28 | /** | ||
29 | * How long until we give up on transmitting the message? | ||
30 | */ | ||
31 | #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 120) | ||
32 | |||
33 | /** | ||
34 | * How long until we give up on transmitting the message? | ||
35 | */ | ||
36 | #define TIMEOUT_TRANSMIT GNUNET_TIME_relative_multiply ( \ | ||
37 | GNUNET_TIME_UNIT_SECONDS, 30) | ||
38 | |||
39 | #define TEST_MESSAGE_SIZE 2600 | ||
40 | |||
41 | #define TEST_MESSAGE_TYPE 12345 | ||
42 | |||
43 | static struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc; | ||
44 | |||
45 | static struct GNUNET_TRANSPORT_PeerMonitoringContext *pmc_p1; | ||
46 | |||
47 | static struct GNUNET_TRANSPORT_PeerMonitoringContext *pmc_p2; | ||
48 | |||
49 | static int p1_c; | ||
50 | |||
51 | static int p2_c; | ||
52 | |||
53 | static int p1_c_notify; | ||
54 | |||
55 | static int p2_c_notify; | ||
56 | |||
57 | |||
58 | static void | ||
59 | custom_shutdown (void *cls) | ||
60 | { | ||
61 | if (NULL != pmc_p1) | ||
62 | { | ||
63 | GNUNET_TRANSPORT_monitor_peers_cancel (pmc_p1); | ||
64 | pmc_p1 = NULL; | ||
65 | } | ||
66 | if (NULL != pmc_p2) | ||
67 | { | ||
68 | GNUNET_TRANSPORT_monitor_peers_cancel (pmc_p2); | ||
69 | pmc_p2 = NULL; | ||
70 | } | ||
71 | } | ||
72 | |||
73 | |||
74 | static void | ||
75 | notify_receive (void *cls, | ||
76 | struct GNUNET_TRANSPORT_TESTING_PeerContext *receiver, | ||
77 | const struct GNUNET_PeerIdentity *sender, | ||
78 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *message) | ||
79 | { | ||
80 | char *ps = GNUNET_strdup (GNUNET_i2s (&receiver->id)); | ||
81 | |||
82 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
83 | "Peer %u (`%s') received message of type %d and size %u size from peer %s!\n", | ||
84 | receiver->no, | ||
85 | ps, | ||
86 | ntohs (message->header.type), | ||
87 | ntohs (message->header.size), | ||
88 | GNUNET_i2s (sender)); | ||
89 | GNUNET_free (ps); | ||
90 | } | ||
91 | |||
92 | |||
93 | static void | ||
94 | sendtask (void *cls) | ||
95 | { | ||
96 | /* intentionally empty */ | ||
97 | } | ||
98 | |||
99 | |||
100 | static void | ||
101 | check_done () | ||
102 | { | ||
103 | if ((GNUNET_YES == p1_c) && | ||
104 | (GNUNET_YES == p2_c) && | ||
105 | p1_c_notify && | ||
106 | p2_c_notify) | ||
107 | { | ||
108 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
109 | "Both peers state to be connected\n"); | ||
110 | ccc->global_ret = GNUNET_OK; | ||
111 | GNUNET_SCHEDULER_shutdown (); | ||
112 | } | ||
113 | } | ||
114 | |||
115 | |||
116 | static void | ||
117 | notify_connect (void *cls, | ||
118 | struct GNUNET_TRANSPORT_TESTING_PeerContext *me, | ||
119 | const struct GNUNET_PeerIdentity *other) | ||
120 | { | ||
121 | GNUNET_TRANSPORT_TESTING_log_connect (cls, | ||
122 | me, | ||
123 | other); | ||
124 | if (0 == memcmp (other, &ccc->p[0]->id, sizeof(struct GNUNET_PeerIdentity))) | ||
125 | { | ||
126 | p1_c_notify = GNUNET_YES; | ||
127 | } | ||
128 | if (0 == memcmp (other, &ccc->p[1]->id, sizeof(struct GNUNET_PeerIdentity))) | ||
129 | { | ||
130 | p2_c_notify = GNUNET_YES; | ||
131 | } | ||
132 | check_done (); | ||
133 | } | ||
134 | |||
135 | |||
136 | static void | ||
137 | monitor1_cb (void *cls, | ||
138 | const struct GNUNET_PeerIdentity *peer, | ||
139 | const struct GNUNET_HELLO_Address *address, | ||
140 | enum GNUNET_TRANSPORT_PeerState state, | ||
141 | struct GNUNET_TIME_Absolute state_timeout) | ||
142 | { | ||
143 | if ((NULL == address) || (NULL == ccc->p[0])) | ||
144 | return; | ||
145 | |||
146 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
147 | "Monitor 1: %s %s %s\n", | ||
148 | GNUNET_i2s (&address->peer), | ||
149 | GNUNET_TRANSPORT_ps2s (state), | ||
150 | GNUNET_STRINGS_absolute_time_to_string (state_timeout)); | ||
151 | if ((0 == memcmp (&address->peer, &ccc->p[1]->id, sizeof(ccc->p[1]->id))) && | ||
152 | (GNUNET_YES == GNUNET_TRANSPORT_is_connected (state)) && | ||
153 | (GNUNET_NO == p1_c)) | ||
154 | { | ||
155 | p1_c = GNUNET_YES; | ||
156 | check_done (); | ||
157 | } | ||
158 | } | ||
159 | |||
160 | |||
161 | static void | ||
162 | monitor2_cb (void *cls, | ||
163 | const struct GNUNET_PeerIdentity *peer, | ||
164 | const struct GNUNET_HELLO_Address *address, | ||
165 | enum GNUNET_TRANSPORT_PeerState state, | ||
166 | struct GNUNET_TIME_Absolute state_timeout) | ||
167 | { | ||
168 | if ((NULL == address) || (NULL == ccc->p[1])) | ||
169 | return; | ||
170 | |||
171 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
172 | "Monitor 2: %s %s %s\n", | ||
173 | GNUNET_i2s (&address->peer), | ||
174 | GNUNET_TRANSPORT_ps2s (state), | ||
175 | GNUNET_STRINGS_absolute_time_to_string (state_timeout)); | ||
176 | if ((0 == memcmp (&address->peer, &ccc->p[0]->id, sizeof(ccc->p[0]->id))) && | ||
177 | (GNUNET_YES == GNUNET_TRANSPORT_is_connected (state)) && | ||
178 | (GNUNET_NO == p2_c)) | ||
179 | { | ||
180 | p2_c = GNUNET_YES; | ||
181 | check_done (); | ||
182 | } | ||
183 | } | ||
184 | |||
185 | |||
186 | static void | ||
187 | start_monitors (void *cls) | ||
188 | { | ||
189 | pmc_p1 = GNUNET_TRANSPORT_monitor_peers (ccc->p[0]->cfg, | ||
190 | NULL, | ||
191 | GNUNET_NO, | ||
192 | &monitor1_cb, | ||
193 | NULL); | ||
194 | pmc_p2 = GNUNET_TRANSPORT_monitor_peers (ccc->p[1]->cfg, | ||
195 | NULL, | ||
196 | GNUNET_NO, | ||
197 | &monitor2_cb, | ||
198 | NULL); | ||
199 | } | ||
200 | |||
201 | |||
202 | int | ||
203 | main (int argc, char *argv[]) | ||
204 | { | ||
205 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext my_ccc = { | ||
206 | .pre_connect_task = &start_monitors, | ||
207 | .connect_continuation = &sendtask, | ||
208 | .config_file = "test_transport_api_data.conf", | ||
209 | .rec = ¬ify_receive, | ||
210 | .nc = ¬ify_connect, | ||
211 | .nd = &GNUNET_TRANSPORT_TESTING_log_disconnect, | ||
212 | .shutdown_task = &custom_shutdown, | ||
213 | .timeout = TIMEOUT | ||
214 | }; | ||
215 | |||
216 | ccc = &my_ccc; | ||
217 | if (GNUNET_OK != | ||
218 | GNUNET_TRANSPORT_TESTING_main (2, | ||
219 | &GNUNET_TRANSPORT_TESTING_connect_check, | ||
220 | ccc)) | ||
221 | return 1; | ||
222 | return 0; | ||
223 | } | ||
224 | |||
225 | |||
226 | /* end of test_transport_api_monitor_peers.c */ | ||
diff --git a/src/service/transport/test_transport_api_monitor_peers_peer1.conf b/src/service/transport/test_transport_api_monitor_peers_peer1.conf new file mode 100644 index 000000000..bc9eee19b --- /dev/null +++ b/src/service/transport/test_transport_api_monitor_peers_peer1.conf | |||
@@ -0,0 +1,4 @@ | |||
1 | @INLINE@ template_cfg_peer1.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-monitoring-p1/ | ||
4 | |||
diff --git a/src/service/transport/test_transport_api_monitor_peers_peer2.conf b/src/service/transport/test_transport_api_monitor_peers_peer2.conf new file mode 100644 index 000000000..5225a5a87 --- /dev/null +++ b/src/service/transport/test_transport_api_monitor_peers_peer2.conf | |||
@@ -0,0 +1,5 @@ | |||
1 | @INLINE@ template_cfg_peer2.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-monitoring-p2/ | ||
4 | |||
5 | |||
diff --git a/src/service/transport/test_transport_api_monitor_validation_peer1.conf b/src/service/transport/test_transport_api_monitor_validation_peer1.conf new file mode 100644 index 000000000..02f7bc2f0 --- /dev/null +++ b/src/service/transport/test_transport_api_monitor_validation_peer1.conf | |||
@@ -0,0 +1,6 @@ | |||
1 | @INLINE@ template_cfg_peer1.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-monitoring-val-p1/ | ||
4 | |||
5 | [transport] | ||
6 | PLUGINS=tcp | ||
diff --git a/src/service/transport/test_transport_api_monitor_validation_peer2.conf b/src/service/transport/test_transport_api_monitor_validation_peer2.conf new file mode 100644 index 000000000..d4e0874f0 --- /dev/null +++ b/src/service/transport/test_transport_api_monitor_validation_peer2.conf | |||
@@ -0,0 +1,7 @@ | |||
1 | @INLINE@ template_cfg_peer2.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-monitoring-val-p2/ | ||
4 | |||
5 | [TRANSPORT] | ||
6 | PLUGINS=tcp | ||
7 | |||
diff --git a/src/service/transport/test_transport_api_multi_peer1.conf b/src/service/transport/test_transport_api_multi_peer1.conf new file mode 100644 index 000000000..b7cb98777 --- /dev/null +++ b/src/service/transport/test_transport_api_multi_peer1.conf | |||
@@ -0,0 +1,7 @@ | |||
1 | @INLINE@ template_cfg_peer1.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-multi-p1/ | ||
4 | |||
5 | [transport] | ||
6 | PLUGINS = tcp udp | ||
7 | |||
diff --git a/src/service/transport/test_transport_api_multi_peer2.conf b/src/service/transport/test_transport_api_multi_peer2.conf new file mode 100644 index 000000000..f69e0abd9 --- /dev/null +++ b/src/service/transport/test_transport_api_multi_peer2.conf | |||
@@ -0,0 +1,9 @@ | |||
1 | @INLINE@ template_cfg_peer2.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-multi-p2/ | ||
4 | |||
5 | [nat] | ||
6 | ALLOW_NAT = NO | ||
7 | |||
8 | [transport] | ||
9 | PLUGINS = tcp udp | ||
diff --git a/src/service/transport/test_transport_api_tcp_nat_peer1.conf b/src/service/transport/test_transport_api_tcp_nat_peer1.conf new file mode 100644 index 000000000..fb2fcecc6 --- /dev/null +++ b/src/service/transport/test_transport_api_tcp_nat_peer1.conf | |||
@@ -0,0 +1,34 @@ | |||
1 | @INLINE@ template_cfg_peer1.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-nat-p1/ | ||
4 | |||
5 | [nat] | ||
6 | BEHIND_NAT = YES | ||
7 | ENABLE_NAT_SERVER = YES | ||
8 | DISABLEV6 = YES | ||
9 | |||
10 | [transport-tcp] | ||
11 | PORT = 0 | ||
12 | TIMEOUT = 5 s | ||
13 | |||
14 | [arm] | ||
15 | PORT = 51204 | ||
16 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-arm.sock | ||
17 | |||
18 | [statistics] | ||
19 | PORT = 12023 | ||
20 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-statistics.sock | ||
21 | |||
22 | [resolver] | ||
23 | PORT = 12022 | ||
24 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-resolver.sock | ||
25 | |||
26 | [peerinfo] | ||
27 | PORT = 12021 | ||
28 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-peerinfo.sock | ||
29 | |||
30 | [transport] | ||
31 | PORT = 29542 | ||
32 | PLUGINS = tcp | ||
33 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-transport.sock | ||
34 | |||
diff --git a/src/service/transport/test_transport_api_tcp_nat_peer2.conf b/src/service/transport/test_transport_api_tcp_nat_peer2.conf new file mode 100644 index 000000000..1faefc195 --- /dev/null +++ b/src/service/transport/test_transport_api_tcp_nat_peer2.conf | |||
@@ -0,0 +1,32 @@ | |||
1 | @INLINE@ template_cfg_peer2.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-nat-p2/ | ||
4 | |||
5 | [nat] | ||
6 | DISABLEV6 = YES | ||
7 | ENABLE_NAT_CLIENT = YES | ||
8 | |||
9 | [transport-tcp] | ||
10 | PORT = 12030 | ||
11 | TIMEOUT = 5 s | ||
12 | |||
13 | [arm] | ||
14 | PORT = 12034 | ||
15 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-arm.sock | ||
16 | |||
17 | [statistics] | ||
18 | PORT = 12033 | ||
19 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-statistics.sock | ||
20 | |||
21 | [resolver] | ||
22 | PORT = 12032 | ||
23 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-resolver.sock | ||
24 | |||
25 | [peerinfo] | ||
26 | PORT = 12031 | ||
27 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-peerinfo.sock | ||
28 | |||
29 | [transport] | ||
30 | PORT = 45923 | ||
31 | PLUGINS = tcp | ||
32 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-transport.sock | ||
diff --git a/src/service/transport/test_transport_api_tcp_peer1.conf b/src/service/transport/test_transport_api_tcp_peer1.conf new file mode 100644 index 000000000..eabd6b701 --- /dev/null +++ b/src/service/transport/test_transport_api_tcp_peer1.conf | |||
@@ -0,0 +1,9 @@ | |||
1 | @INLINE@ template_cfg_peer1.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-p1/ | ||
4 | |||
5 | [transport] | ||
6 | PLUGINS = tcp | ||
7 | |||
8 | #[transport] | ||
9 | #PREFIX = valgrind | ||
diff --git a/src/service/transport/test_transport_api_tcp_peer2.conf b/src/service/transport/test_transport_api_tcp_peer2.conf new file mode 100644 index 000000000..58ce0777f --- /dev/null +++ b/src/service/transport/test_transport_api_tcp_peer2.conf | |||
@@ -0,0 +1,9 @@ | |||
1 | @INLINE@ template_cfg_peer2.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-p2/ | ||
4 | |||
5 | [transport] | ||
6 | PLUGINS = tcp | ||
7 | |||
8 | #[transport] | ||
9 | #PREFIX = valgrind | ||
diff --git a/src/service/transport/test_transport_api_udp_nat_peer1.conf b/src/service/transport/test_transport_api_udp_nat_peer1.conf new file mode 100644 index 000000000..7bbcaa628 --- /dev/null +++ b/src/service/transport/test_transport_api_udp_nat_peer1.conf | |||
@@ -0,0 +1,34 @@ | |||
1 | @INLINE@ template_cfg_peer1.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-udp-nat-p1/ | ||
4 | |||
5 | [nat] | ||
6 | BEHIND_NAT = YES | ||
7 | ALLOW_NAT = NO | ||
8 | ONLY_NAT_ADDRESSES = YES | ||
9 | |||
10 | [transport-udp] | ||
11 | PORT = 0 | ||
12 | |||
13 | [arm] | ||
14 | PORT = 12065 | ||
15 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-arm.sock | ||
16 | |||
17 | [statistics] | ||
18 | PORT = 12064 | ||
19 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-statistics.sock | ||
20 | |||
21 | [resolver] | ||
22 | PORT = 12063 | ||
23 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-resolver.sock | ||
24 | |||
25 | [peerinfo] | ||
26 | PORT = 12062 | ||
27 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-peerinfo.sock | ||
28 | |||
29 | [transport] | ||
30 | PORT = 12061 | ||
31 | PLUGINS = udp | ||
32 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p1-service-transport.sock | ||
33 | |||
34 | |||
diff --git a/src/service/transport/test_transport_api_udp_nat_peer2.conf b/src/service/transport/test_transport_api_udp_nat_peer2.conf new file mode 100644 index 000000000..8bdb8c293 --- /dev/null +++ b/src/service/transport/test_transport_api_udp_nat_peer2.conf | |||
@@ -0,0 +1,32 @@ | |||
1 | @INLINE@ template_cfg_peer2.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-udp-nat-p2/ | ||
4 | |||
5 | [nat] | ||
6 | ALLOW_NAT = YES | ||
7 | |||
8 | [transport-udp] | ||
9 | PORT = 12070 | ||
10 | |||
11 | [arm] | ||
12 | PORT = 12075 | ||
13 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-arm.sock | ||
14 | |||
15 | [statistics] | ||
16 | PORT = 12074 | ||
17 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-statistics.sock | ||
18 | |||
19 | [resolver] | ||
20 | PORT = 12073 | ||
21 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-resolver.sock | ||
22 | |||
23 | [peerinfo] | ||
24 | PORT = 12072 | ||
25 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-peerinfo.sock | ||
26 | |||
27 | [transport] | ||
28 | PORT = 12071 | ||
29 | PLUGINS = udp | ||
30 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-p2-service-transport.sock | ||
31 | |||
32 | |||
diff --git a/src/service/transport/test_transport_api_udp_peer1.conf b/src/service/transport/test_transport_api_udp_peer1.conf new file mode 100644 index 000000000..4684b77f2 --- /dev/null +++ b/src/service/transport/test_transport_api_udp_peer1.conf | |||
@@ -0,0 +1,17 @@ | |||
1 | @INLINE@ template_cfg_peer1.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-udp-p1/ | ||
4 | |||
5 | [transport-udp] | ||
6 | PORT = 0 | ||
7 | BROADCAST = NO | ||
8 | MAX_BPS = 50000000 | ||
9 | BINDTO = 127.0.0.1 | ||
10 | BINDTO6 = ::1 | ||
11 | |||
12 | [transport] | ||
13 | PORT = 12041 | ||
14 | PLUGINS = udp | ||
15 | |||
16 | |||
17 | |||
diff --git a/src/service/transport/test_transport_api_udp_peer2.conf b/src/service/transport/test_transport_api_udp_peer2.conf new file mode 100644 index 000000000..96706ce49 --- /dev/null +++ b/src/service/transport/test_transport_api_udp_peer2.conf | |||
@@ -0,0 +1,15 @@ | |||
1 | @INLINE@ template_cfg_peer2.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-udp-p2/ | ||
4 | |||
5 | [transport-udp] | ||
6 | PORT = 12050 | ||
7 | BROADCAST = NO | ||
8 | MAX_BPS = 50000000 | ||
9 | BINDTO = 127.0.0.1 | ||
10 | BINDTO6 = ::1 | ||
11 | |||
12 | [transport] | ||
13 | PLUGINS = udp | ||
14 | |||
15 | |||
diff --git a/src/service/transport/test_transport_api_unix_peer1.conf b/src/service/transport/test_transport_api_unix_peer1.conf new file mode 100644 index 000000000..005558bcc --- /dev/null +++ b/src/service/transport/test_transport_api_unix_peer1.conf | |||
@@ -0,0 +1,10 @@ | |||
1 | @INLINE@ template_cfg_peer1.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-unix-p1/ | ||
4 | |||
5 | [transport] | ||
6 | PLUGINS = unix | ||
7 | |||
8 | [transport-unix] | ||
9 | PORT = 12120 | ||
10 | |||
diff --git a/src/service/transport/test_transport_api_unix_peer2.conf b/src/service/transport/test_transport_api_unix_peer2.conf new file mode 100644 index 000000000..840ed81c7 --- /dev/null +++ b/src/service/transport/test_transport_api_unix_peer2.conf | |||
@@ -0,0 +1,7 @@ | |||
1 | @INLINE@ template_cfg_peer2.conf | ||
2 | [PATHS] | ||
3 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-unix-p2/ | ||
4 | |||
5 | [transport] | ||
6 | PLUGINS = unix | ||
7 | |||
diff --git a/src/service/transport/test_transport_defaults.conf b/src/service/transport/test_transport_defaults.conf new file mode 100644 index 000000000..03e7addec --- /dev/null +++ b/src/service/transport/test_transport_defaults.conf | |||
@@ -0,0 +1,20 @@ | |||
1 | @INLINE@ ../../../contrib/conf/gnunet/no_forcestart.conf | ||
2 | |||
3 | [PATHS] | ||
4 | GNUNET_TEST_HOME = $GNUNET_TMP/test-tng/ | ||
5 | |||
6 | [transport-tcp] | ||
7 | TIMEOUT = 300 s | ||
8 | |||
9 | [transport] | ||
10 | # PREFIX = valgrind | ||
11 | |||
12 | [nat] | ||
13 | DISABLEV6 = NO | ||
14 | RETURN_LOCAL_ADDRESSES = YES | ||
15 | BINDTO = 127.0.0.1 | ||
16 | INTERNAL_ADDRESS = 127.0.0.1 | ||
17 | EXTERNAL_ADDRESS = 127.0.0.1 | ||
18 | |||
19 | [transport-udp] | ||
20 | BROADCAST_RECEIVE = no | ||
diff --git a/src/service/transport/test_transport_distance_vector_circle_topo.conf b/src/service/transport/test_transport_distance_vector_circle_topo.conf new file mode 100644 index 000000000..e8d694c3a --- /dev/null +++ b/src/service/transport/test_transport_distance_vector_circle_topo.conf | |||
@@ -0,0 +1,11 @@ | |||
1 | M:1 | ||
2 | N:3 | ||
3 | X:0 | ||
4 | B:0 | ||
5 | T:libgnunet_test_transport_plugin_cmd_simple_send_dv | ||
6 | R:1|{tcp_port:0}|{udp_port:1} | ||
7 | R:2|{tcp_port:0}|{udp_port:1} | ||
8 | R:3|{tcp_port:0}|{udp_port:1} | ||
9 | P:1:1|{connect:{P:2:1:udp}} | ||
10 | P:2:1|{connect:{P:3:1:udp}} | ||
11 | P:3:1|{connect:{P:1:1:udp}} | ||
diff --git a/src/service/transport/test_transport_distance_vector_inverse_topo.conf b/src/service/transport/test_transport_distance_vector_inverse_topo.conf new file mode 100644 index 000000000..e062b3e2e --- /dev/null +++ b/src/service/transport/test_transport_distance_vector_inverse_topo.conf | |||
@@ -0,0 +1,13 @@ | |||
1 | M:1 | ||
2 | N:4 | ||
3 | X:0 | ||
4 | AC:1 | ||
5 | T:libgnunet_test_transport_plugin_cmd_simple_send_dv | ||
6 | R:1|{tcp_port:1}|{udp_port:0} | ||
7 | R:2|{tcp_port:1}|{udp_port:0} | ||
8 | R:3|{tcp_port:1}|{udp_port:0} | ||
9 | R:4|{tcp_port:1}|{udp_port:0} | ||
10 | P:1:1|{connect:{P:2:1:tcp}}|{AC:2} | ||
11 | P:2:1|{connect:{P:3:1:tcp}}|{AC:2} | ||
12 | P:3:1|{connect:{P:4:1:tcp}}|{AC:2} | ||
13 | P:4:1|{AC:3} \ No newline at end of file | ||
diff --git a/src/service/transport/test_transport_distance_vector_topo.conf b/src/service/transport/test_transport_distance_vector_topo.conf new file mode 100644 index 000000000..ead3e0a0a --- /dev/null +++ b/src/service/transport/test_transport_distance_vector_topo.conf | |||
@@ -0,0 +1,8 @@ | |||
1 | M:2 | ||
2 | N:2 | ||
3 | X:0 | ||
4 | T:libgnunet_test_transport_plugin_cmd_simple_send_dv | ||
5 | R:1|{tcp_port:1}|{udp_port:0} | ||
6 | R:2|{tcp_port:1}|{udp_port:0} | ||
7 | P:1:1|{connect:{P:2:1:tcp}} | ||
8 | P:2:1|{connect:{P:1:1:tcp}} | ||
diff --git a/src/service/transport/test_transport_just_run_topo.conf b/src/service/transport/test_transport_just_run_topo.conf new file mode 100644 index 000000000..d27a2fc77 --- /dev/null +++ b/src/service/transport/test_transport_just_run_topo.conf | |||
@@ -0,0 +1,6 @@ | |||
1 | M:2 | ||
2 | N:1 | ||
3 | X:0 | ||
4 | T:libgnunet_test_transport_plugin_cmd_just_run | ||
5 | P:1:1|{connect:{P:1:2:tcp}|{P:1:2:udp}} | ||
6 | P:1:2|{connect:{P:1:1:tcp}|{P:1:1:udp}} \ No newline at end of file | ||
diff --git a/src/service/transport/test_transport_nat_icmp_tcp.sh b/src/service/transport/test_transport_nat_icmp_tcp.sh new file mode 100755 index 000000000..41cdde487 --- /dev/null +++ b/src/service/transport/test_transport_nat_icmp_tcp.sh | |||
@@ -0,0 +1,12 @@ | |||
1 | #!/bin/bash | ||
2 | if ! [ -d "/run/netns" ]; then | ||
3 | echo You have to create the directory /run/netns. | ||
4 | fi | ||
5 | if [ -f /proc/sys/kernel/unprivileged_userns_clone ]; then | ||
6 | if [ "$(cat /proc/sys/kernel/unprivileged_userns_clone)" != 1 ]; then | ||
7 | echo -e "Error during test setup: The kernel parameter kernel.unprivileged_userns_clone has to be set to 1! One has to execute\n\n sysctl kernel.unprivileged_userns_clone=1\n" | ||
8 | exit 78 | ||
9 | fi | ||
10 | fi | ||
11 | exec unshare -r -nmU bash -c "mount -t tmpfs --make-rshared tmpfs /run/netns; ./test_transport_start_with_config test_transport_nat_icmp_tcp_topo.conf" | ||
12 | #sudo valgrind --vgdb=yes --leak-check=full --track-origins=yes --trace-children=yes --trace-children-skip=/usr/bin/awk,/usr/bin/cut,/usr/bin/seq,/sbin/ip/sed/bash ./test_transport_start_with_config test_transport_nat_upnp_topo.conf | ||
diff --git a/src/service/transport/test_transport_nat_icmp_tcp_topo.conf b/src/service/transport/test_transport_nat_icmp_tcp_topo.conf new file mode 100644 index 000000000..37738c80f --- /dev/null +++ b/src/service/transport/test_transport_nat_icmp_tcp_topo.conf | |||
@@ -0,0 +1,7 @@ | |||
1 | M:1 | ||
2 | N:1 | ||
3 | X:1 | ||
4 | T:libgnunet_test_transport_plugin_cmd_nat_upnp | ||
5 | K:1|{connect:{P:1:1:tcp_natted}} | ||
6 | R:1|{tcp_port:0}|{udp_port:0} | ||
7 | P:1:1 \ No newline at end of file | ||
diff --git a/src/service/transport/test_transport_nat_upnp.sh b/src/service/transport/test_transport_nat_upnp.sh new file mode 100755 index 000000000..df43ef320 --- /dev/null +++ b/src/service/transport/test_transport_nat_upnp.sh | |||
@@ -0,0 +1,12 @@ | |||
1 | #!/bin/bash | ||
2 | if ! [ -d "/run/netns" ]; then | ||
3 | echo You have to create the directory /run/netns. | ||
4 | fi | ||
5 | if [ -f /proc/sys/kernel/unprivileged_userns_clone ]; then | ||
6 | if [ "$(cat /proc/sys/kernel/unprivileged_userns_clone)" != 1 ]; then | ||
7 | echo -e "Error during test setup: The kernel parameter kernel.unprivileged_userns_clone has to be set to 1! One has to execute\n\n sysctl kernel.unprivileged_userns_clone=1\n" | ||
8 | exit 78 | ||
9 | fi | ||
10 | fi | ||
11 | exec unshare -r -nmU bash -c "mount -t tmpfs --make-rshared tmpfs /run/netns; ./test_transport_start_with_config test_transport_nat_upnp_topo.conf" | ||
12 | #sudo valgrind --vgdb=yes --leak-check=full --track-origins=yes --trace-children=yes --trace-children-skip=/usr/bin/awk,/usr/bin/cut,/usr/bin/seq,/sbin/ip/sed/bash ./test_transport_start_with_config test_transport_nat_upnp_topo.conf | ||
diff --git a/src/service/transport/test_transport_nat_upnp_topo.conf b/src/service/transport/test_transport_nat_upnp_topo.conf new file mode 100644 index 000000000..e02633d4b --- /dev/null +++ b/src/service/transport/test_transport_nat_upnp_topo.conf | |||
@@ -0,0 +1,7 @@ | |||
1 | M:1 | ||
2 | N:1 | ||
3 | X:1 | ||
4 | T:libgnunet_test_transport_plugin_cmd_nat_upnp | ||
5 | K:1|{connect:{P:1:1:tcp}} | ||
6 | R:1|{tcp_port:0}|{udp_port:0}|{script:upnp.sh} | ||
7 | P:1:1|{connect:{K:1:udp}} \ No newline at end of file | ||
diff --git a/src/service/transport/test_transport_plugin_cmd_just_run.c b/src/service/transport/test_transport_plugin_cmd_just_run.c new file mode 100644 index 000000000..df7484884 --- /dev/null +++ b/src/service/transport/test_transport_plugin_cmd_just_run.c | |||
@@ -0,0 +1,494 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file testbed/plugin_cmd_simple_send.c | ||
23 | * @brief a plugin to provide the API for running test cases. | ||
24 | * @author t3sserakt | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_testing_barrier.h" | ||
28 | #include "gnunet_testing_netjail_lib.h" | ||
29 | #include "gnunet_util_lib.h" | ||
30 | #include "gnunet_transport_application_service.h" | ||
31 | #include "transport-testing2.h" | ||
32 | #include "transport-testing-cmds.h" | ||
33 | #include "gnunet_testing_barrier.h" | ||
34 | #include "gnunet_core_service.h" | ||
35 | |||
36 | /** | ||
37 | * Generic logging shortcut | ||
38 | */ | ||
39 | #define LOG(kind, ...) GNUNET_log (kind, __VA_ARGS__) | ||
40 | |||
41 | #define BASE_DIR "testdir" | ||
42 | |||
43 | #define TOPOLOGY_CONFIG "test_transport_simple_send_topo.conf" | ||
44 | |||
45 | #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 600) | ||
46 | |||
47 | #define MAX_RECEIVED 1000 | ||
48 | |||
49 | #define MESSAGE_SIZE 65000 | ||
50 | |||
51 | static struct GNUNET_TESTING_Command block_script; | ||
52 | |||
53 | static struct GNUNET_TESTING_Command connect_peers; | ||
54 | |||
55 | static struct GNUNET_TESTING_Command local_prepared; | ||
56 | |||
57 | static struct GNUNET_TESTING_Command start_peer; | ||
58 | |||
59 | static struct GNUNET_TESTING_Interpreter *is; | ||
60 | |||
61 | static struct GNUNET_CONTAINER_MultiPeerMap *senders; | ||
62 | |||
63 | struct Sender | ||
64 | { | ||
65 | /** | ||
66 | * Number of received messages from sender. | ||
67 | */ | ||
68 | unsigned long long num_received; | ||
69 | |||
70 | /** | ||
71 | * Sample mean time the message traveled. | ||
72 | */ | ||
73 | struct GNUNET_TIME_Relative mean_time; | ||
74 | |||
75 | /** | ||
76 | * Time the first message was send. | ||
77 | */ | ||
78 | struct GNUNET_TIME_Absolute time_first; | ||
79 | }; | ||
80 | |||
81 | /** | ||
82 | * Function called to check a message of type GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE being | ||
83 | * received. | ||
84 | * | ||
85 | */ | ||
86 | static int | ||
87 | check_test (void *cls, | ||
88 | const struct | ||
89 | GNUNET_TRANSPORT_TESTING_PerformanceTestMessage *message) | ||
90 | { | ||
91 | return GNUNET_OK; | ||
92 | } | ||
93 | |||
94 | |||
95 | struct GNUNET_TESTING_BarrierList* | ||
96 | get_waiting_for_barriers () | ||
97 | { | ||
98 | struct GNUNET_TESTING_BarrierList*barriers; | ||
99 | struct GNUNET_TESTING_BarrierListEntry *ble; | ||
100 | |||
101 | barriers = GNUNET_new (struct GNUNET_TESTING_BarrierList); | ||
102 | ble = GNUNET_new (struct GNUNET_TESTING_BarrierListEntry); | ||
103 | ble->barrier_name = "ready-to-connect"; | ||
104 | ble->expected_reaches = 1; | ||
105 | GNUNET_CONTAINER_DLL_insert (barriers->head, | ||
106 | barriers->tail, | ||
107 | ble); | ||
108 | |||
109 | ble = GNUNET_new (struct GNUNET_TESTING_BarrierListEntry); | ||
110 | ble->barrier_name = "test-case-finished"; | ||
111 | ble->expected_reaches = 1; | ||
112 | GNUNET_CONTAINER_DLL_insert (barriers->head, | ||
113 | barriers->tail, | ||
114 | ble); | ||
115 | return barriers; | ||
116 | } | ||
117 | |||
118 | |||
119 | /** | ||
120 | * Callback to set the flag indicating all peers started. Will be called via the plugin api. | ||
121 | * | ||
122 | */ | ||
123 | static void | ||
124 | all_peers_started () | ||
125 | { | ||
126 | } | ||
127 | |||
128 | |||
129 | /** | ||
130 | * Function called with the final result of the test. | ||
131 | * | ||
132 | * @param cls the `struct MainParams` | ||
133 | * @param rv #GNUNET_OK if the test passed | ||
134 | */ | ||
135 | static void | ||
136 | handle_result (void *cls, | ||
137 | enum GNUNET_GenericReturnValue rv) | ||
138 | { | ||
139 | struct TestState *ts = cls; | ||
140 | |||
141 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
142 | "Local test exits with status %d\n", | ||
143 | rv); | ||
144 | |||
145 | ts->finished_cb (rv); | ||
146 | GNUNET_free (ts->testdir); | ||
147 | GNUNET_free (ts->cfgname); | ||
148 | GNUNET_TESTING_free_topology (ts->topology); | ||
149 | GNUNET_free (ts); | ||
150 | } | ||
151 | |||
152 | |||
153 | /** | ||
154 | * Callback from start peer cmd for signaling a peer got connected. | ||
155 | * | ||
156 | * | ||
157 | static void * | ||
158 | notify_connect (struct GNUNET_TESTING_Interpreter *is, | ||
159 | const struct GNUNET_PeerIdentity *peer) | ||
160 | { | ||
161 | const struct ConnectPeersState *cps; | ||
162 | const struct GNUNET_TESTING_Command *cmd; | ||
163 | |||
164 | cmd = GNUNET_TESTING_interpreter_lookup_command (is, | ||
165 | "connect-peers"); | ||
166 | GNUNET_TRANSPORT_get_trait_connect_peer_state (cmd, | ||
167 | &cps); | ||
168 | void *ret = NULL; | ||
169 | |||
170 | cps->notify_connect (is, | ||
171 | peer); | ||
172 | return ret; | ||
173 | }*/ | ||
174 | |||
175 | |||
176 | /** | ||
177 | * Callback to set the flag indicating all peers are prepared to finish. Will be called via the plugin api. | ||
178 | */ | ||
179 | static void | ||
180 | all_local_tests_prepared () | ||
181 | { | ||
182 | const struct GNUNET_TESTING_LocalPreparedState *lfs; | ||
183 | |||
184 | GNUNET_TESTING_get_trait_local_prepared_state (&local_prepared, | ||
185 | &lfs); | ||
186 | GNUNET_assert (NULL != &lfs->ac); | ||
187 | if (NULL == lfs->ac.cont) | ||
188 | GNUNET_TESTING_async_fail ((struct GNUNET_TESTING_AsyncContext *) &lfs->ac); | ||
189 | else | ||
190 | GNUNET_TESTING_async_finish ((struct | ||
191 | GNUNET_TESTING_AsyncContext *) &lfs->ac); | ||
192 | } | ||
193 | |||
194 | |||
195 | static void | ||
196 | child_completed_callback (void *cls, | ||
197 | enum GNUNET_OS_ProcessStatusType type, | ||
198 | long unsigned int exit_code) | ||
199 | { | ||
200 | |||
201 | } | ||
202 | |||
203 | |||
204 | /** | ||
205 | * Function called to check a message being | ||
206 | * received. | ||
207 | * | ||
208 | */ | ||
209 | static int | ||
210 | check_encrypted (void *cls, struct GNUNET_MessageHeader *header) | ||
211 | { | ||
212 | return GNUNET_OK; | ||
213 | } | ||
214 | |||
215 | |||
216 | static void | ||
217 | core_receive_continue (struct GNUNET_PeerIdentity *peer) | ||
218 | { | ||
219 | const struct GNUNET_TESTING_StartPeerState *sps; | ||
220 | |||
221 | GNUNET_TRANSPORT_get_trait_state (&start_peer, | ||
222 | &sps); | ||
223 | |||
224 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
225 | "Executing core receive continue\n"); | ||
226 | |||
227 | GNUNET_TRANSPORT_core_receive_continue (sps->th, peer); | ||
228 | } | ||
229 | |||
230 | |||
231 | /*static void | ||
232 | handle_core (void *cls, struct GNUNET_MessageHeader *header) | ||
233 | { | ||
234 | struct GNUNET_PeerIdentity *peer = cls; | ||
235 | |||
236 | core_receive_continue (peer); | ||
237 | }*/ | ||
238 | |||
239 | |||
240 | /** | ||
241 | * Function called to handle a message being received. | ||
242 | * | ||
243 | */ | ||
244 | static void | ||
245 | handle_encrypted (void *cls, struct GNUNET_MessageHeader *header) | ||
246 | { | ||
247 | struct GNUNET_PeerIdentity *peer = cls; | ||
248 | |||
249 | core_receive_continue (peer); | ||
250 | } | ||
251 | |||
252 | |||
253 | static void | ||
254 | handle_ephemeral_key (void *cls, struct GNUNET_MessageHeader *header) | ||
255 | { | ||
256 | struct GNUNET_PeerIdentity *peer = cls; | ||
257 | |||
258 | core_receive_continue (peer); | ||
259 | } | ||
260 | |||
261 | |||
262 | static void | ||
263 | handle_ping (void *cls, struct GNUNET_MessageHeader *header) | ||
264 | { | ||
265 | struct GNUNET_PeerIdentity *peer = cls; | ||
266 | |||
267 | core_receive_continue (peer); | ||
268 | } | ||
269 | |||
270 | |||
271 | static void | ||
272 | handle_pong (void *cls, struct GNUNET_MessageHeader *header) | ||
273 | { | ||
274 | struct GNUNET_PeerIdentity *peer = cls; | ||
275 | |||
276 | core_receive_continue (peer); | ||
277 | } | ||
278 | |||
279 | /** | ||
280 | * Function to start a local test case. | ||
281 | * | ||
282 | * @param write_message Callback to send a message to the master loop. | ||
283 | * @param router_ip Global address of the network namespace. | ||
284 | * @param node_ip The IP address of the node. | ||
285 | * @param m The number of the node in a network namespace. | ||
286 | * @param n The number of the network namespace. | ||
287 | * @param local_m The number of nodes in a network namespace. | ||
288 | * @param topology_data A file name for the file containing the topology configuration, or a string containing | ||
289 | * the topology configuration. | ||
290 | * @param read_file If read_file is GNUNET_YES this string is the filename for the topology configuration, | ||
291 | * if read_file is GNUNET_NO the string contains the topology configuration. | ||
292 | * @param finish_cb Callback function which writes a message from the helper process running on a netjail | ||
293 | * node to the master process * signaling that the test case running on the netjail node finished. | ||
294 | * @return Returns the struct GNUNET_TESTING_Interpreter of the command loop running on this netjail node. | ||
295 | */ | ||
296 | static struct GNUNET_TESTING_Interpreter * | ||
297 | start_testcase (GNUNET_TESTING_cmd_helper_write_cb write_message, | ||
298 | const char *router_ip, | ||
299 | const char *node_ip, | ||
300 | const char *m, | ||
301 | const char *n, | ||
302 | const char *local_m, | ||
303 | const char *topology_data, | ||
304 | unsigned int *read_file, | ||
305 | GNUNET_TESTING_cmd_helper_finish_cb finished_cb) | ||
306 | { | ||
307 | |||
308 | unsigned int n_int; | ||
309 | unsigned int m_int; | ||
310 | unsigned int local_m_int; | ||
311 | unsigned int num; | ||
312 | struct TestState *ts = GNUNET_new (struct TestState); | ||
313 | struct GNUNET_TESTING_NetjailTopology *topology; | ||
314 | unsigned int sscanf_ret = 0; | ||
315 | char **argv = NULL; | ||
316 | int argc = 0; | ||
317 | |||
318 | ts->finished_cb = finished_cb; | ||
319 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
320 | "n %s m %s\n", | ||
321 | n, | ||
322 | m); | ||
323 | |||
324 | if (GNUNET_YES == *read_file) | ||
325 | { | ||
326 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
327 | "read from file\n"); | ||
328 | topology = GNUNET_TESTING_get_topo_from_file (topology_data); | ||
329 | } | ||
330 | else | ||
331 | topology = GNUNET_TESTING_get_topo_from_string (topology_data); | ||
332 | |||
333 | ts->topology = topology; | ||
334 | |||
335 | errno = 0; | ||
336 | sscanf_ret = sscanf (m, "%u", &m_int); | ||
337 | if (errno != 0) | ||
338 | { | ||
339 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
340 | } | ||
341 | GNUNET_assert (0 < sscanf_ret); | ||
342 | errno = 0; | ||
343 | sscanf_ret = sscanf (n, "%u", &n_int); | ||
344 | if (errno != 0) | ||
345 | { | ||
346 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
347 | } | ||
348 | GNUNET_assert (0 < sscanf_ret); | ||
349 | errno = 0; | ||
350 | sscanf_ret = sscanf (local_m, "%u", &local_m_int); | ||
351 | if (errno != 0) | ||
352 | { | ||
353 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
354 | } | ||
355 | GNUNET_assert (0 < sscanf_ret); | ||
356 | |||
357 | if (0 == n_int) | ||
358 | num = m_int; | ||
359 | else | ||
360 | num = (n_int - 1) * local_m_int + m_int + topology->nodes_x; | ||
361 | |||
362 | block_script = GNUNET_TESTING_cmd_block_until_external_trigger ( | ||
363 | "block-script"); | ||
364 | connect_peers = GNUNET_TRANSPORT_cmd_connect_peers ("connect-peers", | ||
365 | "start-peer", | ||
366 | "system-create", | ||
367 | num, | ||
368 | topology, | ||
369 | 0, | ||
370 | GNUNET_NO); | ||
371 | local_prepared = GNUNET_TESTING_cmd_local_test_prepared ( | ||
372 | "local-test-prepared", | ||
373 | write_message); | ||
374 | |||
375 | |||
376 | GNUNET_asprintf (&ts->cfgname, | ||
377 | "test_transport_api2_tcp_node1.conf"); | ||
378 | |||
379 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
380 | "plugin cfgname: %s\n", | ||
381 | ts->cfgname); | ||
382 | |||
383 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
384 | "node ip: %s\n", | ||
385 | node_ip); | ||
386 | |||
387 | GNUNET_asprintf (&ts->testdir, | ||
388 | "%s%s%s", | ||
389 | BASE_DIR, | ||
390 | m, | ||
391 | n); | ||
392 | |||
393 | /*struct GNUNET_MQ_MessageHandler handlers[] = { | ||
394 | GNUNET_MQ_hd_fixed_size (ephemeral_key, | ||
395 | GNUNET_MESSAGE_TYPE_CORE_EPHEMERAL_KEY, | ||
396 | struct EphemeralKeyMessage, | ||
397 | NULL), | ||
398 | GNUNET_MQ_hd_fixed_size (ping, | ||
399 | GNUNET_MESSAGE_TYPE_CORE_PING, | ||
400 | struct PingMessage, | ||
401 | NULL), | ||
402 | GNUNET_MQ_hd_fixed_size (pong, | ||
403 | GNUNET_MESSAGE_TYPE_CORE_PONG, | ||
404 | struct PongMessage, | ||
405 | NULL), | ||
406 | GNUNET_MQ_handler_end () | ||
407 | };*/ | ||
408 | |||
409 | start_peer = GNUNET_TESTING_cmd_start_peer ("start-peer", | ||
410 | "system-create", | ||
411 | num, | ||
412 | node_ip, | ||
413 | ts->cfgname, | ||
414 | GNUNET_NO); | ||
415 | |||
416 | struct GNUNET_TESTING_Command commands[] = { | ||
417 | GNUNET_TESTING_cmd_system_create ("system-create", | ||
418 | ts->testdir), | ||
419 | start_peer, | ||
420 | GNUNET_TESTING_cmd_barrier_reached ("ready-to-connect-reached", | ||
421 | "ready-to-connect", | ||
422 | GNUNET_NO, | ||
423 | num, | ||
424 | GNUNET_NO, | ||
425 | write_message), | ||
426 | connect_peers, | ||
427 | GNUNET_TESTING_cmd_exec_bash_script ("script", | ||
428 | "block.sh", | ||
429 | argv, | ||
430 | argc, | ||
431 | &child_completed_callback), | ||
432 | block_script, | ||
433 | GNUNET_TESTING_cmd_barrier_reached ("test-case-finished-reached", | ||
434 | "test-case-finished", | ||
435 | GNUNET_NO, | ||
436 | num, | ||
437 | GNUNET_NO, | ||
438 | write_message), | ||
439 | GNUNET_TRANSPORT_cmd_stop_peer ("stop-peer", | ||
440 | "start-peer"), | ||
441 | GNUNET_TESTING_cmd_system_destroy ("system-destroy", | ||
442 | "system-create"), | ||
443 | GNUNET_TESTING_cmd_end () | ||
444 | }; | ||
445 | |||
446 | ts->write_message = write_message; | ||
447 | |||
448 | is = GNUNET_TESTING_run (commands, | ||
449 | TIMEOUT, | ||
450 | &handle_result, | ||
451 | ts); | ||
452 | return is; | ||
453 | } | ||
454 | |||
455 | |||
456 | /** | ||
457 | * Entry point for the plugin. | ||
458 | * | ||
459 | * @param cls NULL | ||
460 | * @return the exported block API | ||
461 | */ | ||
462 | void * | ||
463 | libgnunet_test_transport_plugin_cmd_just_run_init (void *cls) | ||
464 | { | ||
465 | struct GNUNET_TESTING_PluginFunctions *api; | ||
466 | |||
467 | GNUNET_log_setup ("simple-send", | ||
468 | "DEBUG", | ||
469 | NULL); | ||
470 | |||
471 | api = GNUNET_new (struct GNUNET_TESTING_PluginFunctions); | ||
472 | api->start_testcase = &start_testcase; | ||
473 | api->get_waiting_for_barriers = get_waiting_for_barriers; | ||
474 | return api; | ||
475 | } | ||
476 | |||
477 | |||
478 | /** | ||
479 | * Exit point from the plugin. | ||
480 | * | ||
481 | * @param cls the return value from #libgnunet_test_transport_plugin_just_run_init | ||
482 | * @return NULL | ||
483 | */ | ||
484 | void * | ||
485 | libgnunet_test_transport_plugin_cmd_just_run_done (void *cls) | ||
486 | { | ||
487 | struct GNUNET_TESTING_PluginFunctions *api = cls; | ||
488 | |||
489 | GNUNET_free (api); | ||
490 | return NULL; | ||
491 | } | ||
492 | |||
493 | |||
494 | /* end of plugin_cmd_simple_send.c */ | ||
diff --git a/src/service/transport/test_transport_plugin_cmd_nat_upnp.c b/src/service/transport/test_transport_plugin_cmd_nat_upnp.c new file mode 100644 index 000000000..01e3e8b72 --- /dev/null +++ b/src/service/transport/test_transport_plugin_cmd_nat_upnp.c | |||
@@ -0,0 +1,368 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file testbed/plugin_cmd_simple_send.c | ||
23 | * @brief a plugin to provide the API for running test cases. | ||
24 | * @author t3sserakt | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_testing_barrier.h" | ||
28 | #include "gnunet_testing_netjail_lib.h" | ||
29 | #include "gnunet_util_lib.h" | ||
30 | #include "gnunet_transport_application_service.h" | ||
31 | #include "transport-testing2.h" | ||
32 | #include "transport-testing-cmds.h" | ||
33 | #include "gnunet_testing_barrier.h" | ||
34 | |||
35 | /** | ||
36 | * Generic logging shortcut | ||
37 | */ | ||
38 | #define LOG(kind, ...) GNUNET_log (kind, __VA_ARGS__) | ||
39 | |||
40 | #define BASE_DIR "testdir" | ||
41 | |||
42 | #define TOPOLOGY_CONFIG "test_transport_simple_send_topo.conf" | ||
43 | |||
44 | #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 600) | ||
45 | |||
46 | static struct GNUNET_TESTING_Command block_send; | ||
47 | |||
48 | static struct GNUNET_TESTING_Command block_receive; | ||
49 | |||
50 | static struct GNUNET_TESTING_Command connect_peers; | ||
51 | |||
52 | static struct GNUNET_TESTING_Command local_prepared; | ||
53 | |||
54 | static struct GNUNET_TESTING_Interpreter *is; | ||
55 | |||
56 | /** | ||
57 | * Function called to check a message of type GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE being | ||
58 | * received. | ||
59 | * | ||
60 | */ | ||
61 | static int | ||
62 | check_test (void *cls, | ||
63 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *message) | ||
64 | { | ||
65 | return GNUNET_OK; | ||
66 | } | ||
67 | |||
68 | |||
69 | /** | ||
70 | * Function called to handle a message of type GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE | ||
71 | * being received. | ||
72 | * | ||
73 | */ | ||
74 | static void | ||
75 | handle_test (void *cls, | ||
76 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *message) | ||
77 | { | ||
78 | struct GNUNET_TESTING_AsyncContext *ac; | ||
79 | |||
80 | GNUNET_TESTING_get_trait_async_context (&block_receive, | ||
81 | &ac); | ||
82 | GNUNET_assert (NULL != ac); | ||
83 | if (NULL == ac->cont) | ||
84 | GNUNET_TESTING_async_fail ((struct GNUNET_TESTING_AsyncContext *) ac); | ||
85 | else | ||
86 | GNUNET_TESTING_async_finish ((struct GNUNET_TESTING_AsyncContext *) ac); | ||
87 | } | ||
88 | |||
89 | |||
90 | struct GNUNET_TESTING_BarrierList* | ||
91 | get_waiting_for_barriers () | ||
92 | { | ||
93 | struct GNUNET_TESTING_BarrierList*barriers; | ||
94 | struct GNUNET_TESTING_BarrierListEntry *ble; | ||
95 | |||
96 | barriers = GNUNET_new (struct GNUNET_TESTING_BarrierList); | ||
97 | ble = GNUNET_new (struct GNUNET_TESTING_BarrierListEntry); | ||
98 | ble->barrier_name = "ready-to-connect"; | ||
99 | ble->expected_reaches = 1; | ||
100 | GNUNET_CONTAINER_DLL_insert (barriers->head, | ||
101 | barriers->tail, | ||
102 | ble); | ||
103 | |||
104 | ble = GNUNET_new (struct GNUNET_TESTING_BarrierListEntry); | ||
105 | ble->barrier_name = "test-case-finished"; | ||
106 | ble->expected_reaches = 1; | ||
107 | GNUNET_CONTAINER_DLL_insert (barriers->head, | ||
108 | barriers->tail, | ||
109 | ble); | ||
110 | return barriers; | ||
111 | } | ||
112 | |||
113 | |||
114 | /** | ||
115 | * Function called with the final result of the test. | ||
116 | * | ||
117 | * @param cls the `struct MainParams` | ||
118 | * @param rv #GNUNET_OK if the test passed | ||
119 | */ | ||
120 | static void | ||
121 | handle_result (void *cls, | ||
122 | enum GNUNET_GenericReturnValue rv) | ||
123 | { | ||
124 | struct TestState *ts = cls; | ||
125 | |||
126 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
127 | "Local test exits with status %d\n", | ||
128 | rv); | ||
129 | |||
130 | ts->finished_cb (rv); | ||
131 | GNUNET_free (ts->testdir); | ||
132 | GNUNET_free (ts->cfgname); | ||
133 | GNUNET_TESTING_free_topology (ts->topology); | ||
134 | GNUNET_free (ts); | ||
135 | } | ||
136 | |||
137 | |||
138 | /** | ||
139 | * Callback from start peer cmd for signaling a peer got connected. | ||
140 | * | ||
141 | */ | ||
142 | static void * | ||
143 | notify_connect (struct GNUNET_TESTING_Interpreter *is, | ||
144 | const struct GNUNET_PeerIdentity *peer) | ||
145 | { | ||
146 | const struct ConnectPeersState *cps; | ||
147 | const struct GNUNET_TESTING_Command *cmd; | ||
148 | |||
149 | cmd = GNUNET_TESTING_interpreter_lookup_command (is, | ||
150 | "connect-peers"); | ||
151 | GNUNET_TRANSPORT_TESTING_get_trait_connect_peer_state (cmd, | ||
152 | &cps); | ||
153 | void *ret = NULL; | ||
154 | |||
155 | cps->notify_connect (is, | ||
156 | peer); | ||
157 | return ret; | ||
158 | } | ||
159 | |||
160 | |||
161 | /** | ||
162 | * Function to start a local test case. | ||
163 | * | ||
164 | * @param write_message Callback to send a message to the master loop. | ||
165 | * @param router_ip Global address of the network namespace. | ||
166 | * @param node_ip The IP address of the node. | ||
167 | * @param m The number of the node in a network namespace. | ||
168 | * @param n The number of the network namespace. | ||
169 | * @param local_m The number of nodes in a network namespace. | ||
170 | * @param topology_data A file name for the file containing the topology configuration, or a string containing | ||
171 | * the topology configuration. | ||
172 | * @param read_file If read_file is GNUNET_YES this string is the filename for the topology configuration, | ||
173 | * if read_file is GNUNET_NO the string contains the topology configuration. | ||
174 | * @param finish_cb Callback function which writes a message from the helper process running on a netjail | ||
175 | * node to the master process * signaling that the test case running on the netjail node finished. | ||
176 | * @return Returns the struct GNUNET_TESTING_Interpreter of the command loop running on this netjail node. | ||
177 | */ | ||
178 | static struct GNUNET_TESTING_Interpreter * | ||
179 | start_testcase (GNUNET_TESTING_cmd_helper_write_cb write_message, | ||
180 | const char *router_ip, | ||
181 | const char *node_ip, | ||
182 | const char *m, | ||
183 | const char *n, | ||
184 | const char *local_m, | ||
185 | const char *topology_data, | ||
186 | unsigned int *read_file, | ||
187 | GNUNET_TESTING_cmd_helper_finish_cb finished_cb) | ||
188 | { | ||
189 | |||
190 | unsigned int n_int; | ||
191 | unsigned int m_int; | ||
192 | unsigned int local_m_int; | ||
193 | unsigned int num; | ||
194 | struct TestState *ts = GNUNET_new (struct TestState); | ||
195 | struct GNUNET_TESTING_NetjailTopology *topology; | ||
196 | unsigned int sscanf_ret = 0; | ||
197 | |||
198 | ts->finished_cb = finished_cb; | ||
199 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
200 | "n %s m %s\n", | ||
201 | n, | ||
202 | m); | ||
203 | |||
204 | if (GNUNET_YES == *read_file) | ||
205 | { | ||
206 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
207 | "read from file\n"); | ||
208 | topology = GNUNET_TESTING_get_topo_from_file (topology_data); | ||
209 | } | ||
210 | else | ||
211 | topology = GNUNET_TESTING_get_topo_from_string (topology_data); | ||
212 | |||
213 | ts->topology = topology; | ||
214 | |||
215 | errno = 0; | ||
216 | sscanf_ret = sscanf (m, "%u", &m_int); | ||
217 | if (errno != 0) | ||
218 | { | ||
219 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
220 | } | ||
221 | GNUNET_assert (0 < sscanf_ret); | ||
222 | errno = 0; | ||
223 | sscanf_ret = sscanf (n, "%u", &n_int); | ||
224 | if (errno != 0) | ||
225 | { | ||
226 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
227 | } | ||
228 | GNUNET_assert (0 < sscanf_ret); | ||
229 | errno = 0; | ||
230 | sscanf_ret = sscanf (local_m, "%u", &local_m_int); | ||
231 | if (errno != 0) | ||
232 | { | ||
233 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
234 | } | ||
235 | GNUNET_assert (0 < sscanf_ret); | ||
236 | |||
237 | if (0 == n_int) | ||
238 | num = m_int; | ||
239 | else | ||
240 | num = (n_int - 1) * local_m_int + m_int + topology->nodes_x; | ||
241 | |||
242 | block_send = GNUNET_TESTING_cmd_block_until_external_trigger ( | ||
243 | "block"); | ||
244 | block_receive = GNUNET_TESTING_cmd_block_until_external_trigger ( | ||
245 | "block-receive"); | ||
246 | connect_peers = GNUNET_TRANSPORT_cmd_connect_peers ("connect-peers", | ||
247 | "start-peer", | ||
248 | "system-create", | ||
249 | num, | ||
250 | topology, | ||
251 | 0, | ||
252 | GNUNET_YES); | ||
253 | local_prepared = GNUNET_TESTING_cmd_local_test_prepared ( | ||
254 | "local-test-prepared", | ||
255 | write_message); | ||
256 | |||
257 | |||
258 | GNUNET_asprintf (&ts->cfgname, | ||
259 | "test_transport_api2_tcp_node1.conf"); | ||
260 | |||
261 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
262 | "plugin cfgname: %s\n", | ||
263 | ts->cfgname); | ||
264 | |||
265 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
266 | "node ip: %s\n", | ||
267 | node_ip); | ||
268 | |||
269 | GNUNET_asprintf (&ts->testdir, | ||
270 | "%s%s%s", | ||
271 | BASE_DIR, | ||
272 | m, | ||
273 | n); | ||
274 | |||
275 | struct GNUNET_MQ_MessageHandler handlers[] = { | ||
276 | GNUNET_MQ_hd_var_size (test, | ||
277 | GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE, | ||
278 | struct GNUNET_TRANSPORT_TESTING_TestMessage, | ||
279 | ts), | ||
280 | GNUNET_MQ_handler_end () | ||
281 | }; | ||
282 | |||
283 | struct GNUNET_TESTING_Command commands[] = { | ||
284 | GNUNET_TESTING_cmd_system_create ("system-create", | ||
285 | ts->testdir), | ||
286 | GNUNET_TRANSPORT_cmd_start_peer ("start-peer", | ||
287 | "system-create", | ||
288 | num, | ||
289 | node_ip, | ||
290 | handlers, | ||
291 | ts->cfgname, | ||
292 | notify_connect, | ||
293 | GNUNET_NO), | ||
294 | GNUNET_TESTING_cmd_barrier_reached ("ready-to-connect-reached", | ||
295 | "ready-to-connect", | ||
296 | GNUNET_NO, | ||
297 | num, | ||
298 | GNUNET_NO, | ||
299 | write_message), | ||
300 | connect_peers, | ||
301 | GNUNET_TRANSPORT_cmd_send_simple ("send-simple", | ||
302 | "start-peer", | ||
303 | "system-create", | ||
304 | num, | ||
305 | topology), | ||
306 | block_receive, | ||
307 | GNUNET_TESTING_cmd_barrier_reached ("test-case-finished-reached", | ||
308 | "test-case-finished", | ||
309 | GNUNET_NO, | ||
310 | num, | ||
311 | GNUNET_NO, | ||
312 | write_message), | ||
313 | GNUNET_TRANSPORT_cmd_stop_peer ("stop-peer", | ||
314 | "start-peer"), | ||
315 | GNUNET_TESTING_cmd_system_destroy ("system-destroy", | ||
316 | "system-create"), | ||
317 | GNUNET_TESTING_cmd_end () | ||
318 | }; | ||
319 | |||
320 | ts->write_message = write_message; | ||
321 | |||
322 | is = GNUNET_TESTING_run (commands, | ||
323 | TIMEOUT, | ||
324 | &handle_result, | ||
325 | ts); | ||
326 | return is; | ||
327 | } | ||
328 | |||
329 | |||
330 | /** | ||
331 | * Entry point for the plugin. | ||
332 | * | ||
333 | * @param cls NULL | ||
334 | * @return the exported block API | ||
335 | */ | ||
336 | void * | ||
337 | libgnunet_test_transport_plugin_cmd_nat_upnp_init (void *cls) | ||
338 | { | ||
339 | struct GNUNET_TESTING_PluginFunctions *api; | ||
340 | |||
341 | GNUNET_log_setup ("simple-send", | ||
342 | "DEBUG", | ||
343 | NULL); | ||
344 | |||
345 | api = GNUNET_new (struct GNUNET_TESTING_PluginFunctions); | ||
346 | api->start_testcase = &start_testcase; | ||
347 | api->get_waiting_for_barriers = get_waiting_for_barriers; | ||
348 | return api; | ||
349 | } | ||
350 | |||
351 | |||
352 | /** | ||
353 | * Exit point from the plugin. | ||
354 | * | ||
355 | * @param cls the return value from #libgnunet_test_transport_plugin_nat_upnp_init | ||
356 | * @return NULL | ||
357 | */ | ||
358 | void * | ||
359 | libgnunet_test_transport_plugin_cmd_nat_upnp_done (void *cls) | ||
360 | { | ||
361 | struct GNUNET_TESTING_PluginFunctions *api = cls; | ||
362 | |||
363 | GNUNET_free (api); | ||
364 | return NULL; | ||
365 | } | ||
366 | |||
367 | |||
368 | /* end of plugin_cmd_simple_send.c */ | ||
diff --git a/src/service/transport/test_transport_plugin_cmd_simple_send.c b/src/service/transport/test_transport_plugin_cmd_simple_send.c new file mode 100644 index 000000000..efef49826 --- /dev/null +++ b/src/service/transport/test_transport_plugin_cmd_simple_send.c | |||
@@ -0,0 +1,377 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file testbed/plugin_cmd_simple_send.c | ||
23 | * @brief a plugin to provide the API for running test cases. | ||
24 | * @author t3sserakt | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_testing_barrier.h" | ||
28 | #include "gnunet_testing_netjail_lib.h" | ||
29 | #include "gnunet_util_lib.h" | ||
30 | #include "gnunet_transport_application_service.h" | ||
31 | #include "transport-testing2.h" | ||
32 | #include "transport-testing-cmds.h" | ||
33 | #include "gnunet_testing_barrier.h" | ||
34 | |||
35 | /** | ||
36 | * Generic logging shortcut | ||
37 | */ | ||
38 | #define LOG(kind, ...) GNUNET_log (kind, __VA_ARGS__) | ||
39 | |||
40 | #define BASE_DIR "testdir" | ||
41 | |||
42 | #define TOPOLOGY_CONFIG "test_transport_simple_send_topo.conf" | ||
43 | |||
44 | #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 600) | ||
45 | |||
46 | static struct GNUNET_TESTING_Command block_send; | ||
47 | |||
48 | static struct GNUNET_TESTING_Command block_receive; | ||
49 | |||
50 | static struct GNUNET_TESTING_Command connect_peers; | ||
51 | |||
52 | static struct GNUNET_TESTING_Command local_prepared; | ||
53 | |||
54 | static struct GNUNET_TESTING_Interpreter *is; | ||
55 | |||
56 | /** | ||
57 | * Function called to check a message of type GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE being | ||
58 | * received. | ||
59 | * | ||
60 | */ | ||
61 | static int | ||
62 | check_test (void *cls, | ||
63 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *message) | ||
64 | { | ||
65 | return GNUNET_OK; | ||
66 | } | ||
67 | |||
68 | |||
69 | /** | ||
70 | * Function called to handle a message of type GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE | ||
71 | * being received. | ||
72 | * | ||
73 | */ | ||
74 | static void | ||
75 | handle_test (void *cls, | ||
76 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *message) | ||
77 | { | ||
78 | struct GNUNET_TESTING_AsyncContext *ac; | ||
79 | |||
80 | GNUNET_TESTING_get_trait_async_context (&block_receive, | ||
81 | &ac); | ||
82 | GNUNET_assert (NULL != ac); | ||
83 | if (NULL == ac->cont) | ||
84 | GNUNET_TESTING_async_fail ((struct GNUNET_TESTING_AsyncContext *) ac); | ||
85 | else | ||
86 | GNUNET_TESTING_async_finish ((struct GNUNET_TESTING_AsyncContext *) ac); | ||
87 | } | ||
88 | |||
89 | |||
90 | struct GNUNET_TESTING_BarrierList * | ||
91 | get_waiting_for_barriers () | ||
92 | { | ||
93 | // No Barrier | ||
94 | return GNUNET_new (struct GNUNET_TESTING_BarrierList); | ||
95 | } | ||
96 | |||
97 | |||
98 | /** | ||
99 | * Callback to set the flag indicating all peers started. Will be called via the plugin api. | ||
100 | * | ||
101 | */ | ||
102 | static void | ||
103 | all_peers_started () | ||
104 | { | ||
105 | struct GNUNET_TESTING_AsyncContext *ac; | ||
106 | |||
107 | GNUNET_TESTING_get_trait_async_context (&block_send, | ||
108 | &ac); | ||
109 | GNUNET_assert (NULL != ac); | ||
110 | if (NULL == ac->cont) | ||
111 | GNUNET_TESTING_async_fail ((struct GNUNET_TESTING_AsyncContext *) ac); | ||
112 | else | ||
113 | GNUNET_TESTING_async_finish ((struct GNUNET_TESTING_AsyncContext *) ac); | ||
114 | } | ||
115 | |||
116 | |||
117 | /** | ||
118 | * Function called with the final result of the test. | ||
119 | * | ||
120 | * @param cls the `struct MainParams` | ||
121 | * @param rv #GNUNET_OK if the test passed | ||
122 | */ | ||
123 | static void | ||
124 | handle_result (void *cls, | ||
125 | enum GNUNET_GenericReturnValue rv) | ||
126 | { | ||
127 | struct TestState *ts = cls; | ||
128 | |||
129 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
130 | "Local test exits with status %d\n", | ||
131 | rv); | ||
132 | |||
133 | ts->finished_cb (rv); | ||
134 | GNUNET_free (ts->testdir); | ||
135 | GNUNET_free (ts->cfgname); | ||
136 | GNUNET_TESTING_free_topology (ts->topology); | ||
137 | GNUNET_free (ts); | ||
138 | } | ||
139 | |||
140 | |||
141 | /** | ||
142 | * Callback from start peer cmd for signaling a peer got connected. | ||
143 | * | ||
144 | */ | ||
145 | static void * | ||
146 | notify_connect (struct GNUNET_TESTING_Interpreter *is, | ||
147 | const struct GNUNET_PeerIdentity *peer) | ||
148 | { | ||
149 | const struct ConnectPeersState *cps; | ||
150 | const struct GNUNET_TESTING_Command *cmd; | ||
151 | |||
152 | cmd = GNUNET_TESTING_interpreter_lookup_command (is, | ||
153 | "connect-peers"); | ||
154 | GNUNET_TRANSPORT_TESTING_get_trait_connect_peer_state (cmd, | ||
155 | &cps); | ||
156 | void *ret = NULL; | ||
157 | |||
158 | cps->notify_connect (is, | ||
159 | peer); | ||
160 | return ret; | ||
161 | } | ||
162 | |||
163 | |||
164 | /** | ||
165 | * Callback to set the flag indicating all peers are prepared to finish. Will be called via the plugin api. | ||
166 | */ | ||
167 | static void | ||
168 | all_local_tests_prepared () | ||
169 | { | ||
170 | const struct GNUNET_TESTING_LocalPreparedState *lfs; | ||
171 | |||
172 | GNUNET_TESTING_get_trait_local_prepared_state (&local_prepared, | ||
173 | &lfs); | ||
174 | GNUNET_assert (NULL != &lfs->ac); | ||
175 | if (NULL == lfs->ac.cont) | ||
176 | GNUNET_TESTING_async_fail ((struct GNUNET_TESTING_AsyncContext *) &lfs->ac); | ||
177 | else | ||
178 | GNUNET_TESTING_async_finish ((struct | ||
179 | GNUNET_TESTING_AsyncContext *) &lfs->ac); | ||
180 | } | ||
181 | |||
182 | |||
183 | /** | ||
184 | * Function to start a local test case. | ||
185 | * | ||
186 | * @param write_message Callback to send a message to the master loop. | ||
187 | * @param router_ip Global address of the network namespace. | ||
188 | * @param node_ip The IP address of the node. | ||
189 | * @param m The number of the node in a network namespace. | ||
190 | * @param n The number of the network namespace. | ||
191 | * @param local_m The number of nodes in a network namespace. | ||
192 | */ | ||
193 | static struct GNUNET_TESTING_Interpreter * | ||
194 | start_testcase (GNUNET_TESTING_cmd_helper_write_cb write_message, | ||
195 | const char *router_ip, | ||
196 | const char *node_ip, | ||
197 | const char *m, | ||
198 | const char *n, | ||
199 | const char *local_m, | ||
200 | const char *topology_data, | ||
201 | unsigned int *read_file, | ||
202 | GNUNET_TESTING_cmd_helper_finish_cb finished_cb) | ||
203 | { | ||
204 | |||
205 | unsigned int n_int; | ||
206 | unsigned int m_int; | ||
207 | unsigned int local_m_int; | ||
208 | unsigned int num; | ||
209 | struct TestState *ts = GNUNET_new (struct TestState); | ||
210 | struct GNUNET_TESTING_NetjailTopology *topology; | ||
211 | unsigned int sscanf_ret = 0; | ||
212 | |||
213 | ts->finished_cb = finished_cb; | ||
214 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
215 | "n %s m %s\n", | ||
216 | n, | ||
217 | m); | ||
218 | |||
219 | if (GNUNET_YES == *read_file) | ||
220 | { | ||
221 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
222 | "read from file\n"); | ||
223 | topology = GNUNET_TESTING_get_topo_from_file (topology_data); | ||
224 | } | ||
225 | else | ||
226 | topology = GNUNET_TESTING_get_topo_from_string (topology_data); | ||
227 | |||
228 | ts->topology = topology; | ||
229 | |||
230 | errno = 0; | ||
231 | sscanf_ret = sscanf (m, "%u", &m_int); | ||
232 | if (errno != 0) | ||
233 | { | ||
234 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
235 | } | ||
236 | GNUNET_assert (0 < sscanf_ret); | ||
237 | errno = 0; | ||
238 | sscanf_ret = sscanf (n, "%u", &n_int); | ||
239 | if (errno != 0) | ||
240 | { | ||
241 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
242 | } | ||
243 | GNUNET_assert (0 < sscanf_ret); | ||
244 | errno = 0; | ||
245 | sscanf_ret = sscanf (local_m, "%u", &local_m_int); | ||
246 | if (errno != 0) | ||
247 | { | ||
248 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
249 | } | ||
250 | GNUNET_assert (0 < sscanf_ret); | ||
251 | |||
252 | if (0 == n_int) | ||
253 | num = m_int; | ||
254 | else | ||
255 | num = (n_int - 1) * local_m_int + m_int + topology->nodes_x; | ||
256 | |||
257 | block_send = GNUNET_TESTING_cmd_block_until_external_trigger ( | ||
258 | "block"); | ||
259 | block_receive = GNUNET_TESTING_cmd_block_until_external_trigger ( | ||
260 | "block-receive"); | ||
261 | connect_peers = GNUNET_TRANSPORT_cmd_connect_peers ("connect-peers", | ||
262 | "start-peer", | ||
263 | "system-create", | ||
264 | num, | ||
265 | topology, | ||
266 | 0, | ||
267 | GNUNET_YES); | ||
268 | local_prepared = GNUNET_TESTING_cmd_local_test_prepared ( | ||
269 | "local-test-prepared", | ||
270 | write_message); | ||
271 | |||
272 | |||
273 | GNUNET_asprintf (&ts->cfgname, | ||
274 | "test_transport_api2_tcp_node1.conf"); | ||
275 | |||
276 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
277 | "plugin cfgname: %s\n", | ||
278 | ts->cfgname); | ||
279 | |||
280 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
281 | "node ip: %s\n", | ||
282 | node_ip); | ||
283 | |||
284 | GNUNET_asprintf (&ts->testdir, | ||
285 | "%s%s%s", | ||
286 | BASE_DIR, | ||
287 | m, | ||
288 | n); | ||
289 | |||
290 | struct GNUNET_MQ_MessageHandler handlers[] = { | ||
291 | GNUNET_MQ_hd_var_size (test, | ||
292 | GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE, | ||
293 | struct GNUNET_TRANSPORT_TESTING_TestMessage, | ||
294 | ts), | ||
295 | GNUNET_MQ_handler_end () | ||
296 | }; | ||
297 | |||
298 | struct GNUNET_TESTING_Command commands[] = { | ||
299 | GNUNET_TESTING_cmd_system_create ("system-create", | ||
300 | ts->testdir), | ||
301 | GNUNET_TRANSPORT_cmd_start_peer ("start-peer", | ||
302 | "system-create", | ||
303 | num, | ||
304 | node_ip, | ||
305 | handlers, | ||
306 | ts->cfgname, | ||
307 | notify_connect, | ||
308 | GNUNET_NO), | ||
309 | GNUNET_TESTING_cmd_send_peer_ready ("send-peer-ready", | ||
310 | write_message), | ||
311 | block_send, | ||
312 | connect_peers, | ||
313 | GNUNET_TRANSPORT_cmd_send_simple ("send-simple", | ||
314 | "start-peer", | ||
315 | "system-create", | ||
316 | num, | ||
317 | topology), | ||
318 | block_receive, | ||
319 | local_prepared, | ||
320 | GNUNET_TRANSPORT_cmd_stop_peer ("stop-peer", | ||
321 | "start-peer"), | ||
322 | GNUNET_TESTING_cmd_system_destroy ("system-destroy", | ||
323 | "system-create"), | ||
324 | GNUNET_TESTING_cmd_end () | ||
325 | }; | ||
326 | |||
327 | ts->write_message = write_message; | ||
328 | |||
329 | is = GNUNET_TESTING_run (commands, | ||
330 | TIMEOUT, | ||
331 | &handle_result, | ||
332 | ts); | ||
333 | return is; | ||
334 | } | ||
335 | |||
336 | |||
337 | /** | ||
338 | * Entry point for the plugin. | ||
339 | * | ||
340 | * @param cls NULL | ||
341 | * @return the exported block API | ||
342 | */ | ||
343 | void * | ||
344 | libgnunet_test_transport_plugin_cmd_simple_send_init (void *cls) | ||
345 | { | ||
346 | struct GNUNET_TESTING_PluginFunctions *api; | ||
347 | |||
348 | GNUNET_log_setup ("simple-send", | ||
349 | "DEBUG", | ||
350 | NULL); | ||
351 | |||
352 | api = GNUNET_new (struct GNUNET_TESTING_PluginFunctions); | ||
353 | api->start_testcase = &start_testcase; | ||
354 | api->all_peers_started = &all_peers_started; | ||
355 | api->all_local_tests_prepared = all_local_tests_prepared; | ||
356 | api->get_waiting_for_barriers = get_waiting_for_barriers; | ||
357 | return api; | ||
358 | } | ||
359 | |||
360 | |||
361 | /** | ||
362 | * Exit point from the plugin. | ||
363 | * | ||
364 | * @param cls the return value from #libgnunet_test_transport_plugin_block_test_init | ||
365 | * @return NULL | ||
366 | */ | ||
367 | void * | ||
368 | libgnunet_test_transport_plugin_cmd_simple_send_done (void *cls) | ||
369 | { | ||
370 | struct GNUNET_TESTING_PluginFunctions *api = cls; | ||
371 | |||
372 | GNUNET_free (api); | ||
373 | return NULL; | ||
374 | } | ||
375 | |||
376 | |||
377 | /* end of plugin_cmd_simple_send.c */ | ||
diff --git a/src/service/transport/test_transport_plugin_cmd_simple_send_broadcast.c b/src/service/transport/test_transport_plugin_cmd_simple_send_broadcast.c new file mode 100644 index 000000000..62f7d820f --- /dev/null +++ b/src/service/transport/test_transport_plugin_cmd_simple_send_broadcast.c | |||
@@ -0,0 +1,399 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file testbed/plugin_cmd_simple_send_broadcast.c | ||
23 | * @brief a plugin to provide the API for running test cases. | ||
24 | * @author t3sserakt | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_testing_barrier.h" | ||
28 | #include "gnunet_testing_netjail_lib.h" | ||
29 | #include "gnunet_util_lib.h" | ||
30 | #include "gnunet_transport_application_service.h" | ||
31 | #include "transport-testing2.h" | ||
32 | #include "transport-testing-cmds.h" | ||
33 | #include "gnunet_testing_barrier.h" | ||
34 | |||
35 | /** | ||
36 | * Generic logging shortcut | ||
37 | */ | ||
38 | #define LOG(kind, ...) GNUNET_log (kind, __VA_ARGS__) | ||
39 | |||
40 | #define BASE_DIR "testdir" | ||
41 | |||
42 | #define TOPOLOGY_CONFIG "test_transport_simple_send_topo.conf" | ||
43 | |||
44 | #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 600) | ||
45 | |||
46 | static struct GNUNET_TESTING_Command block_send; | ||
47 | |||
48 | static struct GNUNET_TESTING_Command block_receive; | ||
49 | |||
50 | static struct GNUNET_TESTING_Command connect_peers; | ||
51 | |||
52 | static struct GNUNET_TESTING_Command local_prepared; | ||
53 | |||
54 | static struct GNUNET_TESTING_Interpreter *is; | ||
55 | |||
56 | /** | ||
57 | * Function called to check a message of type GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE being | ||
58 | * received. | ||
59 | * | ||
60 | */ | ||
61 | static int | ||
62 | check_test (void *cls, | ||
63 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *message) | ||
64 | { | ||
65 | return GNUNET_OK; | ||
66 | } | ||
67 | |||
68 | |||
69 | /** | ||
70 | * Function called to handle a message of type GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE | ||
71 | * being received. | ||
72 | * | ||
73 | */ | ||
74 | static void | ||
75 | handle_test (void *cls, | ||
76 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *message) | ||
77 | { | ||
78 | struct GNUNET_TESTING_AsyncContext *ac; | ||
79 | |||
80 | GNUNET_TESTING_get_trait_async_context (&block_receive, | ||
81 | &ac); | ||
82 | GNUNET_assert (NULL != ac); | ||
83 | if ((GNUNET_NO == ac->finished) && (NULL == ac->cont)) | ||
84 | GNUNET_TESTING_async_fail ((struct GNUNET_TESTING_AsyncContext *) ac); | ||
85 | else if (GNUNET_NO == ac->finished) | ||
86 | GNUNET_TESTING_async_finish ((struct GNUNET_TESTING_AsyncContext *) ac); | ||
87 | } | ||
88 | |||
89 | |||
90 | struct GNUNET_TESTING_BarrierList * | ||
91 | get_waiting_for_barriers () | ||
92 | { | ||
93 | // No Barrier | ||
94 | return GNUNET_new (struct GNUNET_TESTING_BarrierList); | ||
95 | } | ||
96 | |||
97 | |||
98 | /** | ||
99 | * Callback to set the flag indicating all peers started. Will be called via the plugin api. | ||
100 | * | ||
101 | */ | ||
102 | static void | ||
103 | all_peers_started () | ||
104 | { | ||
105 | struct GNUNET_TESTING_AsyncContext *ac; | ||
106 | |||
107 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
108 | "Received message\n"); | ||
109 | GNUNET_TESTING_get_trait_async_context (&block_send, | ||
110 | &ac); | ||
111 | GNUNET_assert (NULL != ac); | ||
112 | if (NULL == ac->cont) | ||
113 | GNUNET_TESTING_async_fail ((struct GNUNET_TESTING_AsyncContext *) ac); | ||
114 | else | ||
115 | GNUNET_TESTING_async_finish ((struct GNUNET_TESTING_AsyncContext *) ac); | ||
116 | } | ||
117 | |||
118 | |||
119 | /** | ||
120 | * Function called with the final result of the test. | ||
121 | * | ||
122 | * @param cls the `struct MainParams` | ||
123 | * @param rv #GNUNET_OK if the test passed | ||
124 | */ | ||
125 | static void | ||
126 | handle_result (void *cls, | ||
127 | enum GNUNET_GenericReturnValue rv) | ||
128 | { | ||
129 | struct TestState *ts = cls; | ||
130 | |||
131 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
132 | "Local test exits with status %d\n", | ||
133 | rv); | ||
134 | ts->finished_cb (rv); | ||
135 | GNUNET_free (ts->testdir); | ||
136 | GNUNET_free (ts->cfgname); | ||
137 | GNUNET_TESTING_free_topology (ts->topology); | ||
138 | GNUNET_free (ts); | ||
139 | } | ||
140 | |||
141 | |||
142 | /** | ||
143 | * Callback from start peer cmd for signaling a peer got connected. | ||
144 | * | ||
145 | */ | ||
146 | static void * | ||
147 | notify_connect (struct GNUNET_TESTING_Interpreter *is, | ||
148 | const struct GNUNET_PeerIdentity *peer) | ||
149 | { | ||
150 | struct GNUNET_TESTING_AsyncContext *ac; | ||
151 | void *ret = NULL; | ||
152 | const struct GNUNET_TESTING_Command *cmd; | ||
153 | struct GNUNET_TESTING_BlockState *bs; | ||
154 | |||
155 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
156 | "notify_connect\n"); | ||
157 | GNUNET_TESTING_get_trait_async_context (&connect_peers, | ||
158 | &ac); | ||
159 | if (NULL != ac->is) | ||
160 | { | ||
161 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
162 | "notify_connect running\n"); | ||
163 | GNUNET_assert (NULL != ac); | ||
164 | if (NULL == ac->cont) | ||
165 | GNUNET_TESTING_async_fail (ac); | ||
166 | else | ||
167 | GNUNET_TESTING_async_finish (ac); | ||
168 | } | ||
169 | else | ||
170 | { | ||
171 | cmd = GNUNET_TESTING_interpreter_lookup_future_command (is, | ||
172 | "connect-peers"); | ||
173 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
174 | "block state %s\n", | ||
175 | cmd->label.value); | ||
176 | GNUNET_TESTING_get_trait_block_state ( | ||
177 | cmd, | ||
178 | &bs); | ||
179 | |||
180 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
181 | "block state %u\n", | ||
182 | bs->asynchronous_finish); | ||
183 | bs->asynchronous_finish = GNUNET_YES; | ||
184 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
185 | "block state %u\n", | ||
186 | bs->asynchronous_finish); | ||
187 | } | ||
188 | |||
189 | return ret; | ||
190 | } | ||
191 | |||
192 | |||
193 | /** | ||
194 | * Callback to set the flag indicating all peers are prepared to finish. Will be called via the plugin api. | ||
195 | */ | ||
196 | static void | ||
197 | all_local_tests_prepared () | ||
198 | { | ||
199 | const struct GNUNET_TESTING_LocalPreparedState *lfs; | ||
200 | |||
201 | GNUNET_TESTING_get_trait_local_prepared_state (&local_prepared, | ||
202 | &lfs); | ||
203 | GNUNET_assert (NULL != &lfs->ac); | ||
204 | if (NULL == lfs->ac.cont) | ||
205 | GNUNET_TESTING_async_fail ((struct GNUNET_TESTING_AsyncContext *) &lfs->ac); | ||
206 | else | ||
207 | GNUNET_TESTING_async_finish ((struct | ||
208 | GNUNET_TESTING_AsyncContext *) &lfs->ac); | ||
209 | } | ||
210 | |||
211 | |||
212 | /** | ||
213 | * Function to start a local test case. | ||
214 | * | ||
215 | * @param write_message Callback to send a message to the master loop. | ||
216 | * @param router_ip Global address of the network namespace. | ||
217 | * @param node_ip The IP address of the node. | ||
218 | * @param m The number of the node in a network namespace. | ||
219 | * @param n The number of the network namespace. | ||
220 | * @param local_m The number of nodes in a network namespace. | ||
221 | */ | ||
222 | static struct GNUNET_TESTING_Interpreter * | ||
223 | start_testcase (GNUNET_TESTING_cmd_helper_write_cb write_message, | ||
224 | const char *router_ip, | ||
225 | const char *node_ip, | ||
226 | const char *m, | ||
227 | const char *n, | ||
228 | const char *local_m, | ||
229 | const char *topology_data, | ||
230 | unsigned int *read_file, | ||
231 | GNUNET_TESTING_cmd_helper_finish_cb finished_cb) | ||
232 | { | ||
233 | unsigned int n_int; | ||
234 | unsigned int m_int; | ||
235 | unsigned int local_m_int; | ||
236 | unsigned int num; | ||
237 | struct TestState *ts = GNUNET_new (struct TestState); | ||
238 | struct GNUNET_TESTING_NetjailTopology *topology; | ||
239 | unsigned int sscanf_ret = 0; | ||
240 | |||
241 | ts->finished_cb = finished_cb; | ||
242 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
243 | "n %s m %s\n", | ||
244 | n, | ||
245 | m); | ||
246 | |||
247 | if (GNUNET_YES == *read_file) | ||
248 | { | ||
249 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
250 | "read from file\n"); | ||
251 | topology = GNUNET_TESTING_get_topo_from_file (topology_data); | ||
252 | } | ||
253 | else | ||
254 | topology = GNUNET_TESTING_get_topo_from_string (topology_data); | ||
255 | |||
256 | ts->topology = topology; | ||
257 | |||
258 | errno = 0; | ||
259 | sscanf_ret = sscanf (m, "%u", &m_int); | ||
260 | if (errno != 0) | ||
261 | { | ||
262 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
263 | } | ||
264 | GNUNET_assert (0 < sscanf_ret); | ||
265 | errno = 0; | ||
266 | sscanf_ret = sscanf (n, "%u", &n_int); | ||
267 | if (errno != 0) | ||
268 | { | ||
269 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
270 | } | ||
271 | GNUNET_assert (0 < sscanf_ret); | ||
272 | errno = 0; | ||
273 | sscanf_ret = sscanf (local_m, "%u", &local_m_int); | ||
274 | if (errno != 0) | ||
275 | { | ||
276 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
277 | } | ||
278 | GNUNET_assert (0 < sscanf_ret); | ||
279 | |||
280 | if (0 == n_int) | ||
281 | num = m_int; | ||
282 | else | ||
283 | num = (n_int - 1) * local_m_int + m_int + topology->nodes_x; | ||
284 | |||
285 | block_send = GNUNET_TESTING_cmd_block_until_external_trigger ("block"); | ||
286 | block_receive = GNUNET_TESTING_cmd_block_until_external_trigger ( | ||
287 | "block-receive"); | ||
288 | connect_peers = GNUNET_TESTING_cmd_block_until_external_trigger ( | ||
289 | "connect-peers"); | ||
290 | local_prepared = GNUNET_TESTING_cmd_local_test_prepared ( | ||
291 | "local-test-prepared", | ||
292 | write_message); | ||
293 | |||
294 | |||
295 | GNUNET_asprintf (&ts->cfgname, | ||
296 | "test_transport_api2_tcp_node1.conf"); | ||
297 | |||
298 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
299 | "plugin cfgname: %s\n", | ||
300 | ts->cfgname); | ||
301 | |||
302 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
303 | "node ip: %s\n", | ||
304 | node_ip); | ||
305 | |||
306 | GNUNET_asprintf (&ts->testdir, | ||
307 | "%s%s%s", | ||
308 | BASE_DIR, | ||
309 | m, | ||
310 | n); | ||
311 | |||
312 | struct GNUNET_MQ_MessageHandler handlers[] = { | ||
313 | GNUNET_MQ_hd_var_size (test, | ||
314 | GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE, | ||
315 | struct GNUNET_TRANSPORT_TESTING_TestMessage, | ||
316 | ts), | ||
317 | GNUNET_MQ_handler_end () | ||
318 | }; | ||
319 | |||
320 | struct GNUNET_TESTING_Command commands[] = { | ||
321 | GNUNET_TESTING_cmd_system_create ("system-create", | ||
322 | ts->testdir), | ||
323 | GNUNET_TRANSPORT_cmd_start_peer ("start-peer", | ||
324 | "system-create", | ||
325 | num, | ||
326 | node_ip, | ||
327 | handlers, | ||
328 | ts->cfgname, | ||
329 | notify_connect, | ||
330 | GNUNET_YES), | ||
331 | GNUNET_TESTING_cmd_send_peer_ready ("send-peer-ready", | ||
332 | write_message), | ||
333 | block_send, | ||
334 | connect_peers, | ||
335 | GNUNET_TRANSPORT_cmd_send_simple ("send-simple", | ||
336 | "start-peer", | ||
337 | "system-create", | ||
338 | num, | ||
339 | topology), | ||
340 | block_receive, | ||
341 | local_prepared, | ||
342 | GNUNET_TRANSPORT_cmd_stop_peer ("stop-peer", | ||
343 | "start-peer"), | ||
344 | GNUNET_TESTING_cmd_system_destroy ("system-destroy", | ||
345 | "system-create"), | ||
346 | GNUNET_TESTING_cmd_end () | ||
347 | }; | ||
348 | |||
349 | ts->write_message = write_message; | ||
350 | |||
351 | is = GNUNET_TESTING_run (commands, | ||
352 | TIMEOUT, | ||
353 | &handle_result, | ||
354 | ts); | ||
355 | return is; | ||
356 | } | ||
357 | |||
358 | |||
359 | /** | ||
360 | * Entry point for the plugin. | ||
361 | * | ||
362 | * @param cls NULL | ||
363 | * @return the exported block API | ||
364 | */ | ||
365 | void * | ||
366 | libgnunet_test_transport_plugin_cmd_simple_send_broadcast_init (void *cls) | ||
367 | { | ||
368 | struct GNUNET_TESTING_PluginFunctions *api; | ||
369 | |||
370 | GNUNET_log_setup ("simple-send", | ||
371 | "DEBUG", | ||
372 | NULL); | ||
373 | |||
374 | api = GNUNET_new (struct GNUNET_TESTING_PluginFunctions); | ||
375 | api->start_testcase = &start_testcase; | ||
376 | api->all_peers_started = &all_peers_started; | ||
377 | api->all_local_tests_prepared = all_local_tests_prepared; | ||
378 | api->get_waiting_for_barriers = get_waiting_for_barriers; | ||
379 | return api; | ||
380 | } | ||
381 | |||
382 | |||
383 | /** | ||
384 | * Exit point from the plugin. | ||
385 | * | ||
386 | * @param cls the return value from #libgnunet_test_transport_plugin_block_test_init | ||
387 | * @return NULL | ||
388 | */ | ||
389 | void * | ||
390 | libgnunet_test_transport_plugin_cmd_simple_send_broadcast_done (void *cls) | ||
391 | { | ||
392 | struct GNUNET_TESTING_PluginFunctions *api = cls; | ||
393 | |||
394 | GNUNET_free (api); | ||
395 | return NULL; | ||
396 | } | ||
397 | |||
398 | |||
399 | /* end of plugin_cmd_simple_send_broadcast.c */ | ||
diff --git a/src/service/transport/test_transport_plugin_cmd_simple_send_dv.c b/src/service/transport/test_transport_plugin_cmd_simple_send_dv.c new file mode 100644 index 000000000..b92736eaa --- /dev/null +++ b/src/service/transport/test_transport_plugin_cmd_simple_send_dv.c | |||
@@ -0,0 +1,433 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file testbed/plugin_cmd_simple_send_broadcast.c | ||
23 | * @brief a plugin to provide the API for running test cases. | ||
24 | * @author t3sserakt | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_testing_barrier.h" | ||
28 | #include "gnunet_testing_netjail_lib.h" | ||
29 | #include "gnunet_util_lib.h" | ||
30 | #include "gnunet_transport_application_service.h" | ||
31 | #include "transport-testing2.h" | ||
32 | #include "transport-testing-cmds.h" | ||
33 | #include "gnunet_testing_barrier.h" | ||
34 | |||
35 | /** | ||
36 | * Generic logging shortcut | ||
37 | */ | ||
38 | #define LOG(kind, ...) GNUNET_log (kind, __VA_ARGS__) | ||
39 | |||
40 | #define BASE_DIR "testdir" | ||
41 | |||
42 | #define TOPOLOGY_CONFIG "test_transport_simple_send_topo.conf" | ||
43 | |||
44 | #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 600) | ||
45 | |||
46 | /** | ||
47 | * The number of messages received. | ||
48 | */ | ||
49 | static unsigned int number_received; | ||
50 | |||
51 | static struct GNUNET_TESTING_Command block_send; | ||
52 | |||
53 | static struct GNUNET_TESTING_Command block_receive; | ||
54 | |||
55 | static struct GNUNET_TESTING_Command connect_peers; | ||
56 | |||
57 | static struct GNUNET_TESTING_Command local_prepared; | ||
58 | |||
59 | static struct GNUNET_TESTING_Command start_peer; | ||
60 | |||
61 | static struct GNUNET_TESTING_Interpreter *is; | ||
62 | |||
63 | /** | ||
64 | * Function called to check a message of type GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE being | ||
65 | * received. | ||
66 | * | ||
67 | */ | ||
68 | static int | ||
69 | check_test (void *cls, | ||
70 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *message) | ||
71 | { | ||
72 | GNUNET_assert (NULL != cls); | ||
73 | return GNUNET_OK; | ||
74 | } | ||
75 | |||
76 | |||
77 | /** | ||
78 | * Function called to handle a message of type GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE | ||
79 | * being received. | ||
80 | * | ||
81 | */ | ||
82 | static void | ||
83 | handle_test (void *cls, | ||
84 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *message) | ||
85 | { | ||
86 | struct GNUNET_PeerIdentity *peer = cls; | ||
87 | struct GNUNET_TESTING_AsyncContext *ac_block; | ||
88 | const struct GNUNET_CONTAINER_MultiShortmap *connected_peers_map; | ||
89 | unsigned int connected; | ||
90 | struct GNUNET_TESTING_BlockState *bs; | ||
91 | struct GNUNET_TRANSPORT_CoreHandle *ch; | ||
92 | const struct GNUNET_TESTING_StartPeerState *sps; | ||
93 | |||
94 | GNUNET_TRANSPORT_TESTING_get_trait_state (&start_peer, | ||
95 | &sps); | ||
96 | ch = sps->th; | ||
97 | GNUNET_TRANSPORT_TESTING_get_trait_connected_peers_map (&start_peer, | ||
98 | &connected_peers_map); | ||
99 | |||
100 | if (NULL != connected_peers_map) | ||
101 | { | ||
102 | connected = GNUNET_CONTAINER_multishortmap_size ( | ||
103 | connected_peers_map); | ||
104 | |||
105 | number_received++; | ||
106 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
107 | "Received %u test message(s) from %s, %u connected peer(s)\n", | ||
108 | number_received, | ||
109 | GNUNET_i2s (peer), | ||
110 | connected); | ||
111 | |||
112 | GNUNET_TESTING_get_trait_async_context (&block_receive, | ||
113 | &ac_block); | ||
114 | |||
115 | if (connected == number_received) | ||
116 | { | ||
117 | if (NULL != ac_block->is) | ||
118 | { | ||
119 | GNUNET_assert (NULL != ac_block); | ||
120 | if (NULL == ac_block->cont) | ||
121 | GNUNET_TESTING_async_fail ((struct | ||
122 | GNUNET_TESTING_AsyncContext *) ac_block); | ||
123 | else | ||
124 | GNUNET_TESTING_async_finish ((struct | ||
125 | GNUNET_TESTING_AsyncContext *) ac_block); | ||
126 | } | ||
127 | else | ||
128 | { | ||
129 | GNUNET_TESTING_get_trait_block_state ( | ||
130 | &block_receive, | ||
131 | &bs); | ||
132 | bs->asynchronous_finish = GNUNET_YES; | ||
133 | } | ||
134 | |||
135 | } | ||
136 | } | ||
137 | GNUNET_TRANSPORT_core_receive_continue (ch, peer); | ||
138 | } | ||
139 | |||
140 | |||
141 | struct GNUNET_TESTING_BarrierList * | ||
142 | get_waiting_for_barriers () | ||
143 | { | ||
144 | // No Barrier | ||
145 | return GNUNET_new (struct GNUNET_TESTING_BarrierList); | ||
146 | } | ||
147 | |||
148 | |||
149 | /** | ||
150 | * Callback to set the flag indicating all peers started. Will be called via the plugin api. | ||
151 | * | ||
152 | */ | ||
153 | static void | ||
154 | all_peers_started () | ||
155 | { | ||
156 | struct GNUNET_TESTING_AsyncContext *ac; | ||
157 | |||
158 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
159 | "Received message\n"); | ||
160 | GNUNET_TESTING_get_trait_async_context (&block_send, | ||
161 | &ac); | ||
162 | GNUNET_assert (NULL != ac); | ||
163 | if (NULL == ac->cont) | ||
164 | GNUNET_TESTING_async_fail ((struct GNUNET_TESTING_AsyncContext *) ac); | ||
165 | else | ||
166 | GNUNET_TESTING_async_finish ((struct GNUNET_TESTING_AsyncContext *) ac); | ||
167 | } | ||
168 | |||
169 | |||
170 | /** | ||
171 | * Function called with the final result of the test. | ||
172 | * | ||
173 | * @param cls the `struct MainParams` | ||
174 | * @param rv #GNUNET_OK if the test passed | ||
175 | */ | ||
176 | static void | ||
177 | handle_result (void *cls, | ||
178 | enum GNUNET_GenericReturnValue rv) | ||
179 | { | ||
180 | struct TestState *ts = cls; | ||
181 | |||
182 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
183 | "Local test exits with status %d\n", | ||
184 | rv); | ||
185 | ts->finished_cb (rv); | ||
186 | GNUNET_free (ts->testdir); | ||
187 | GNUNET_free (ts->cfgname); | ||
188 | GNUNET_TESTING_free_topology (ts->topology); | ||
189 | GNUNET_free (ts); | ||
190 | } | ||
191 | |||
192 | |||
193 | /** | ||
194 | * Callback from start peer cmd for signaling a peer got connected. | ||
195 | * | ||
196 | */ | ||
197 | static void * | ||
198 | notify_connect (struct GNUNET_TESTING_Interpreter *is, | ||
199 | const struct GNUNET_PeerIdentity *peer) | ||
200 | { | ||
201 | const struct ConnectPeersState *cps; | ||
202 | const struct GNUNET_TESTING_Command *cmd; | ||
203 | |||
204 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
205 | "notify_connect peer %s\n", | ||
206 | GNUNET_i2s (peer)); | ||
207 | // FIXME: modifying future is a bit unclean, not easy to follow logic; | ||
208 | // might be better to when reaching the future command to look into | ||
209 | // the past... | ||
210 | cmd = GNUNET_TESTING_interpreter_lookup_command_all (is, | ||
211 | "connect-peers"); | ||
212 | // FIXME: check return value! | ||
213 | GNUNET_TRANSPORT_TESTING_get_trait_connect_peer_state (cmd, | ||
214 | &cps); | ||
215 | cps->notify_connect (is, | ||
216 | peer); | ||
217 | return NULL; | ||
218 | } | ||
219 | |||
220 | |||
221 | /** | ||
222 | * Callback to set the flag indicating all peers are prepared to finish. Will be called via the plugin api. | ||
223 | */ | ||
224 | static void | ||
225 | all_local_tests_prepared () | ||
226 | { | ||
227 | const struct GNUNET_TESTING_LocalPreparedState *lfs; | ||
228 | |||
229 | GNUNET_TESTING_get_trait_local_prepared_state (&local_prepared, | ||
230 | &lfs); | ||
231 | GNUNET_assert (NULL != &lfs->ac); | ||
232 | if (NULL == lfs->ac.cont) | ||
233 | GNUNET_TESTING_async_fail ((struct GNUNET_TESTING_AsyncContext *) &lfs->ac); | ||
234 | else | ||
235 | GNUNET_TESTING_async_finish ((struct | ||
236 | GNUNET_TESTING_AsyncContext *) &lfs->ac); | ||
237 | } | ||
238 | |||
239 | |||
240 | /** | ||
241 | * Function to start a local test case. | ||
242 | * | ||
243 | * @param write_message Callback to send a message to the master loop. | ||
244 | * @param router_ip Global address of the network namespace. | ||
245 | * @param node_ip The IP address of the node. | ||
246 | * @param m The number of the node in a network namespace. | ||
247 | * @param n The number of the network namespace. | ||
248 | * @param local_m The number of nodes in a network namespace. | ||
249 | */ | ||
250 | static struct GNUNET_TESTING_Interpreter * | ||
251 | start_testcase (GNUNET_TESTING_cmd_helper_write_cb write_message, | ||
252 | const char *router_ip, | ||
253 | const char *node_ip, | ||
254 | const char *m, | ||
255 | const char *n, | ||
256 | const char *local_m, | ||
257 | const char *topology_data, | ||
258 | unsigned int *read_file, | ||
259 | GNUNET_TESTING_cmd_helper_finish_cb finished_cb) | ||
260 | { | ||
261 | unsigned int n_int; | ||
262 | unsigned int m_int; | ||
263 | unsigned int local_m_int; | ||
264 | unsigned int num; | ||
265 | struct TestState *ts = GNUNET_new (struct TestState); | ||
266 | struct GNUNET_TESTING_NetjailTopology *topology; | ||
267 | struct GNUNET_MQ_MessageHandler handlers[] = { | ||
268 | GNUNET_MQ_hd_var_size (test, | ||
269 | GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE, | ||
270 | struct GNUNET_TRANSPORT_TESTING_TestMessage, | ||
271 | ts), | ||
272 | GNUNET_MQ_handler_end () | ||
273 | }; | ||
274 | unsigned int sscanf_ret = 0; | ||
275 | |||
276 | ts->finished_cb = finished_cb; | ||
277 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
278 | "n %s m %s\n", | ||
279 | n, | ||
280 | m); | ||
281 | |||
282 | if (GNUNET_YES == *read_file) | ||
283 | { | ||
284 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
285 | "read from file\n"); | ||
286 | topology = GNUNET_TESTING_get_topo_from_file (topology_data); | ||
287 | } | ||
288 | else | ||
289 | topology = GNUNET_TESTING_get_topo_from_string (topology_data); | ||
290 | |||
291 | ts->topology = topology; | ||
292 | |||
293 | errno = 0; | ||
294 | sscanf_ret = sscanf (m, "%u", &m_int); | ||
295 | if (errno != 0) | ||
296 | { | ||
297 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
298 | } | ||
299 | GNUNET_assert (0 < sscanf_ret); | ||
300 | errno = 0; | ||
301 | sscanf_ret = sscanf (n, "%u", &n_int); | ||
302 | if (errno != 0) | ||
303 | { | ||
304 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
305 | } | ||
306 | GNUNET_assert (0 < sscanf_ret); | ||
307 | errno = 0; | ||
308 | sscanf_ret = sscanf (local_m, "%u", &local_m_int); | ||
309 | if (errno != 0) | ||
310 | { | ||
311 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
312 | } | ||
313 | GNUNET_assert (0 < sscanf_ret); | ||
314 | |||
315 | if (0 == n_int) | ||
316 | num = m_int; | ||
317 | else | ||
318 | num = (n_int - 1) * local_m_int + m_int + topology->nodes_x; | ||
319 | |||
320 | block_send = GNUNET_TESTING_cmd_block_until_external_trigger ("block"); | ||
321 | block_receive = GNUNET_TESTING_cmd_block_until_external_trigger ( | ||
322 | "block-receive"); | ||
323 | connect_peers = GNUNET_TRANSPORT_cmd_connect_peers ( | ||
324 | "connect-peers", | ||
325 | "start-peer", | ||
326 | "system-create", | ||
327 | num, | ||
328 | topology, | ||
329 | topology->additional_connects, | ||
330 | GNUNET_YES); | ||
331 | local_prepared = GNUNET_TESTING_cmd_local_test_prepared ( | ||
332 | "local-test-prepared", | ||
333 | write_message); | ||
334 | |||
335 | |||
336 | GNUNET_asprintf (&ts->cfgname, | ||
337 | "test_transport_api2_tcp_node1.conf"); | ||
338 | |||
339 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
340 | "plugin cfgname: %s\n", | ||
341 | ts->cfgname); | ||
342 | |||
343 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
344 | "node ip: %s\n", | ||
345 | node_ip); | ||
346 | |||
347 | GNUNET_asprintf (&ts->testdir, | ||
348 | "%s%s%s", | ||
349 | BASE_DIR, | ||
350 | m, | ||
351 | n); | ||
352 | |||
353 | start_peer = GNUNET_TRANSPORT_cmd_start_peer ("start-peer", | ||
354 | "system-create", | ||
355 | num, | ||
356 | node_ip, | ||
357 | handlers, | ||
358 | ts->cfgname, | ||
359 | notify_connect, | ||
360 | GNUNET_NO); | ||
361 | struct GNUNET_TESTING_Command commands[] = { | ||
362 | GNUNET_TESTING_cmd_system_create ("system-create", | ||
363 | ts->testdir), | ||
364 | start_peer, | ||
365 | GNUNET_TESTING_cmd_send_peer_ready ("send-peer-ready", | ||
366 | write_message), | ||
367 | block_send, | ||
368 | connect_peers, | ||
369 | GNUNET_TRANSPORT_cmd_send_simple ("send-simple", | ||
370 | "start-peer", | ||
371 | "system-create", | ||
372 | num, | ||
373 | topology), | ||
374 | block_receive, | ||
375 | local_prepared, | ||
376 | GNUNET_TRANSPORT_cmd_stop_peer ("stop-peer", | ||
377 | "start-peer"), | ||
378 | GNUNET_TESTING_cmd_system_destroy ("system-destroy", | ||
379 | "system-create"), | ||
380 | GNUNET_TESTING_cmd_end () | ||
381 | }; | ||
382 | |||
383 | ts->write_message = write_message; | ||
384 | |||
385 | is = GNUNET_TESTING_run (commands, | ||
386 | TIMEOUT, | ||
387 | &handle_result, | ||
388 | ts); | ||
389 | return is; | ||
390 | } | ||
391 | |||
392 | |||
393 | /** | ||
394 | * Entry point for the plugin. | ||
395 | * | ||
396 | * @param cls NULL | ||
397 | * @return the exported block API | ||
398 | */ | ||
399 | void * | ||
400 | libgnunet_test_transport_plugin_cmd_simple_send_dv_init (void *cls) | ||
401 | { | ||
402 | struct GNUNET_TESTING_PluginFunctions *api; | ||
403 | |||
404 | GNUNET_log_setup ("simple-send", | ||
405 | "DEBUG", | ||
406 | NULL); | ||
407 | |||
408 | api = GNUNET_new (struct GNUNET_TESTING_PluginFunctions); | ||
409 | api->start_testcase = &start_testcase; | ||
410 | api->all_peers_started = &all_peers_started; | ||
411 | api->all_local_tests_prepared = all_local_tests_prepared; | ||
412 | api->get_waiting_for_barriers = get_waiting_for_barriers; | ||
413 | return api; | ||
414 | } | ||
415 | |||
416 | |||
417 | /** | ||
418 | * Exit point from the plugin. | ||
419 | * | ||
420 | * @param cls the return value from #libgnunet_test_transport_plugin_block_test_init | ||
421 | * @return NULL | ||
422 | */ | ||
423 | void * | ||
424 | libgnunet_test_transport_plugin_cmd_simple_send_dv_done (void *cls) | ||
425 | { | ||
426 | struct GNUNET_TESTING_PluginFunctions *api = cls; | ||
427 | |||
428 | GNUNET_free (api); | ||
429 | return NULL; | ||
430 | } | ||
431 | |||
432 | |||
433 | /* end of plugin_cmd_simple_send_broadcast.c */ | ||
diff --git a/src/service/transport/test_transport_plugin_cmd_simple_send_performance.c b/src/service/transport/test_transport_plugin_cmd_simple_send_performance.c new file mode 100644 index 000000000..33deb3323 --- /dev/null +++ b/src/service/transport/test_transport_plugin_cmd_simple_send_performance.c | |||
@@ -0,0 +1,480 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file testbed/plugin_cmd_simple_send.c | ||
23 | * @brief a plugin to provide the API for running test cases. | ||
24 | * @author t3sserakt | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_testing_barrier.h" | ||
28 | #include "gnunet_testing_netjail_lib.h" | ||
29 | #include "gnunet_util_lib.h" | ||
30 | #include "gnunet_transport_application_service.h" | ||
31 | #include "transport-testing2.h" | ||
32 | #include "transport-testing-cmds.h" | ||
33 | #include "gnunet_testing_barrier.h" | ||
34 | |||
35 | /** | ||
36 | * Generic logging shortcut | ||
37 | */ | ||
38 | #define LOG(kind, ...) GNUNET_log (kind, __VA_ARGS__) | ||
39 | |||
40 | #define BASE_DIR "testdir" | ||
41 | |||
42 | #define TOPOLOGY_CONFIG "test_transport_simple_send_topo.conf" | ||
43 | |||
44 | #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 600) | ||
45 | |||
46 | #define MAX_RECEIVED 1000 | ||
47 | |||
48 | #define MESSAGE_SIZE 65000 | ||
49 | |||
50 | static struct GNUNET_TESTING_Command block_send; | ||
51 | |||
52 | static struct GNUNET_TESTING_Command block_receive; | ||
53 | |||
54 | static struct GNUNET_TESTING_Command connect_peers; | ||
55 | |||
56 | static struct GNUNET_TESTING_Command local_prepared; | ||
57 | |||
58 | static struct GNUNET_TESTING_Command start_peer; | ||
59 | |||
60 | static struct GNUNET_TESTING_Interpreter *is; | ||
61 | |||
62 | static struct GNUNET_CONTAINER_MultiPeerMap *senders; | ||
63 | |||
64 | struct Sender | ||
65 | { | ||
66 | /** | ||
67 | * Number of received messages from sender. | ||
68 | */ | ||
69 | unsigned long long num_received; | ||
70 | |||
71 | /** | ||
72 | * Sample mean time the message traveled. | ||
73 | */ | ||
74 | struct GNUNET_TIME_Relative mean_time; | ||
75 | |||
76 | /** | ||
77 | * Time the first message was send. | ||
78 | */ | ||
79 | struct GNUNET_TIME_Absolute time_first; | ||
80 | }; | ||
81 | |||
82 | /** | ||
83 | * Function called to check a message of type GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE being | ||
84 | * received. | ||
85 | * | ||
86 | */ | ||
87 | static int | ||
88 | check_test (void *cls, | ||
89 | const struct | ||
90 | GNUNET_TRANSPORT_TESTING_PerformanceTestMessage *message) | ||
91 | { | ||
92 | return GNUNET_OK; | ||
93 | } | ||
94 | |||
95 | |||
96 | /** | ||
97 | * Function called to handle a message of type GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE | ||
98 | * being received. | ||
99 | * | ||
100 | */ | ||
101 | static void | ||
102 | handle_test (void *cls, | ||
103 | const struct | ||
104 | GNUNET_TRANSPORT_TESTING_PerformanceTestMessage *message) | ||
105 | { | ||
106 | struct GNUNET_PeerIdentity *peer = cls; | ||
107 | struct GNUNET_TESTING_AsyncContext *ac; | ||
108 | struct Sender *sender; | ||
109 | struct GNUNET_TIME_Absolute time_send; | ||
110 | struct GNUNET_TIME_Absolute now; | ||
111 | struct GNUNET_TIME_Relative time_traveled; | ||
112 | uint32_t num; | ||
113 | struct GNUNET_TRANSPORT_CoreHandle *ch; | ||
114 | const struct GNUNET_TESTING_StartPeerState *sps; | ||
115 | |||
116 | |||
117 | GNUNET_TRANSPORT_TESTING_get_trait_state (&start_peer, | ||
118 | &sps); | ||
119 | ch = sps->th; | ||
120 | num = ntohl (message->num); | ||
121 | GNUNET_TESTING_get_trait_async_context (&block_receive, | ||
122 | &ac); | ||
123 | GNUNET_assert (NULL != ac); | ||
124 | |||
125 | sender = GNUNET_CONTAINER_multipeermap_get (senders, peer); | ||
126 | |||
127 | now = GNUNET_TIME_absolute_get (); | ||
128 | time_send = GNUNET_TIME_absolute_ntoh (message->time_send); | ||
129 | |||
130 | time_traveled = GNUNET_TIME_absolute_get_difference (time_send, now); | ||
131 | |||
132 | if (NULL == sender) | ||
133 | { | ||
134 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
135 | "time traveled init %s\n", | ||
136 | GNUNET_i2s (peer)); | ||
137 | sender = GNUNET_new (struct Sender); | ||
138 | sender->time_first = time_send; | ||
139 | sender->mean_time = GNUNET_TIME_UNIT_ZERO; | ||
140 | GNUNET_assert (GNUNET_OK == GNUNET_CONTAINER_multipeermap_put (senders, | ||
141 | peer, sender, | ||
142 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)); | ||
143 | } | ||
144 | |||
145 | if (GNUNET_TIME_UNIT_ZERO.rel_value_us == sender->mean_time.rel_value_us) | ||
146 | { | ||
147 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
148 | "time traveld mean zero\n"); | ||
149 | sender->mean_time = time_traveled; | ||
150 | } | ||
151 | else | ||
152 | { | ||
153 | double factor = (double) sender->num_received | ||
154 | / ((double) sender->num_received + 1.0); | ||
155 | struct GNUNET_TIME_Relative s1; | ||
156 | struct GNUNET_TIME_Relative s2; | ||
157 | |||
158 | s1 = GNUNET_TIME_relative_multiply (sender->mean_time, | ||
159 | factor); | ||
160 | s2 = GNUNET_TIME_relative_divide (time_traveled, | ||
161 | sender->num_received + 1); | ||
162 | sender->mean_time = GNUNET_TIME_relative_add (s1, s2); | ||
163 | } | ||
164 | |||
165 | sender->num_received++; | ||
166 | |||
167 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
168 | "time traveled: %llu\n", | ||
169 | (unsigned long long) time_traveled.rel_value_us); | ||
170 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
171 | "mean time traveled: %s %llu messages received with message number %u\n", | ||
172 | GNUNET_STRINGS_relative_time_to_string (sender->mean_time, | ||
173 | false), | ||
174 | sender->num_received, | ||
175 | num); | ||
176 | if (floor (MAX_RECEIVED * (1 - 1.0 / 200)) < sender->num_received && NULL == | ||
177 | ac->cont) | ||
178 | { | ||
179 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
180 | "time traveled failed\n"); | ||
181 | // GNUNET_TESTING_async_fail ((struct GNUNET_TESTING_AsyncContext *) ac); | ||
182 | } | ||
183 | else if (floor (MAX_RECEIVED * (1 - 1.0 / 200)) < sender->num_received && | ||
184 | GNUNET_NO == ac->finished) | ||
185 | { | ||
186 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
187 | "time traveled finish\n"); | ||
188 | GNUNET_TESTING_async_finish ((struct GNUNET_TESTING_AsyncContext *) ac); | ||
189 | } | ||
190 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
191 | "time traveled end\n"); | ||
192 | GNUNET_TRANSPORT_core_receive_continue (ch, peer); | ||
193 | } | ||
194 | |||
195 | |||
196 | struct GNUNET_TESTING_BarrierList* | ||
197 | get_waiting_for_barriers () | ||
198 | { | ||
199 | struct GNUNET_TESTING_BarrierList*barriers; | ||
200 | struct GNUNET_TESTING_BarrierListEntry *ble; | ||
201 | |||
202 | barriers = GNUNET_new (struct GNUNET_TESTING_BarrierList); | ||
203 | ble = GNUNET_new (struct GNUNET_TESTING_BarrierListEntry); | ||
204 | ble->barrier_name = "ready-to-connect"; | ||
205 | ble->expected_reaches = 1; | ||
206 | GNUNET_CONTAINER_DLL_insert (barriers->head, | ||
207 | barriers->tail, | ||
208 | ble); | ||
209 | |||
210 | ble = GNUNET_new (struct GNUNET_TESTING_BarrierListEntry); | ||
211 | ble->barrier_name = "test-case-finished"; | ||
212 | ble->expected_reaches = 1; | ||
213 | GNUNET_CONTAINER_DLL_insert (barriers->head, | ||
214 | barriers->tail, | ||
215 | ble); | ||
216 | return barriers; | ||
217 | } | ||
218 | |||
219 | |||
220 | /** | ||
221 | * Function called with the final result of the test. | ||
222 | * | ||
223 | * @param cls the `struct MainParams` | ||
224 | * @param rv #GNUNET_OK if the test passed | ||
225 | */ | ||
226 | static void | ||
227 | handle_result (void *cls, | ||
228 | enum GNUNET_GenericReturnValue rv) | ||
229 | { | ||
230 | struct TestState *ts = cls; | ||
231 | |||
232 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
233 | "Local test exits with status %d\n", | ||
234 | rv); | ||
235 | |||
236 | ts->finished_cb (rv); | ||
237 | GNUNET_free (ts->testdir); | ||
238 | GNUNET_free (ts->cfgname); | ||
239 | GNUNET_TESTING_free_topology (ts->topology); | ||
240 | GNUNET_free (ts); | ||
241 | } | ||
242 | |||
243 | |||
244 | /** | ||
245 | * Callback from start peer cmd for signaling a peer got connected. | ||
246 | * | ||
247 | */ | ||
248 | static void * | ||
249 | notify_connect (struct GNUNET_TESTING_Interpreter *is, | ||
250 | const struct GNUNET_PeerIdentity *peer) | ||
251 | { | ||
252 | const struct ConnectPeersState *cps; | ||
253 | const struct GNUNET_TESTING_Command *cmd; | ||
254 | |||
255 | cmd = GNUNET_TESTING_interpreter_lookup_command (is, | ||
256 | "connect-peers"); | ||
257 | GNUNET_TRANSPORT_TESTING_get_trait_connect_peer_state (cmd, | ||
258 | &cps); | ||
259 | void *ret = NULL; | ||
260 | |||
261 | cps->notify_connect (is, | ||
262 | peer); | ||
263 | return ret; | ||
264 | } | ||
265 | |||
266 | |||
267 | /** | ||
268 | * Function to start a local test case. | ||
269 | * | ||
270 | * @param write_message Callback to send a message to the master loop. | ||
271 | * @param router_ip Global address of the network namespace. | ||
272 | * @param node_ip The IP address of the node. | ||
273 | * @param m The number of the node in a network namespace. | ||
274 | * @param n The number of the network namespace. | ||
275 | * @param local_m The number of nodes in a network namespace. | ||
276 | * @param topology_data A file name for the file containing the topology configuration, or a string containing | ||
277 | * the topology configuration. | ||
278 | * @param read_file If read_file is GNUNET_YES this string is the filename for the topology configuration, | ||
279 | * if read_file is GNUNET_NO the string contains the topology configuration. | ||
280 | * @param finish_cb Callback function which writes a message from the helper process running on a netjail | ||
281 | * node to the master process * signaling that the test case running on the netjail node finished. | ||
282 | * @return Returns the struct GNUNET_TESTING_Interpreter of the command loop running on this netjail node. | ||
283 | */ | ||
284 | static struct GNUNET_TESTING_Interpreter * | ||
285 | start_testcase (GNUNET_TESTING_cmd_helper_write_cb write_message, | ||
286 | const char *router_ip, | ||
287 | const char *node_ip, | ||
288 | const char *m, | ||
289 | const char *n, | ||
290 | const char *local_m, | ||
291 | const char *topology_data, | ||
292 | unsigned int *read_file, | ||
293 | GNUNET_TESTING_cmd_helper_finish_cb finished_cb) | ||
294 | { | ||
295 | |||
296 | unsigned int n_int; | ||
297 | unsigned int m_int; | ||
298 | unsigned int local_m_int; | ||
299 | unsigned int num; | ||
300 | struct TestState *ts = GNUNET_new (struct TestState); | ||
301 | struct GNUNET_TESTING_NetjailTopology *topology; | ||
302 | unsigned int sscanf_ret = 0; | ||
303 | |||
304 | senders = GNUNET_CONTAINER_multipeermap_create (1, GNUNET_NO); | ||
305 | ts->finished_cb = finished_cb; | ||
306 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
307 | "n %s m %s\n", | ||
308 | n, | ||
309 | m); | ||
310 | |||
311 | if (GNUNET_YES == *read_file) | ||
312 | { | ||
313 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
314 | "read from file\n"); | ||
315 | topology = GNUNET_TESTING_get_topo_from_file (topology_data); | ||
316 | } | ||
317 | else | ||
318 | topology = GNUNET_TESTING_get_topo_from_string (topology_data); | ||
319 | |||
320 | ts->topology = topology; | ||
321 | |||
322 | errno = 0; | ||
323 | sscanf_ret = sscanf (m, "%u", &m_int); | ||
324 | if (errno != 0) | ||
325 | { | ||
326 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
327 | } | ||
328 | GNUNET_assert (0 < sscanf_ret); | ||
329 | errno = 0; | ||
330 | sscanf_ret = sscanf (n, "%u", &n_int); | ||
331 | if (errno != 0) | ||
332 | { | ||
333 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
334 | } | ||
335 | GNUNET_assert (0 < sscanf_ret); | ||
336 | errno = 0; | ||
337 | sscanf_ret = sscanf (local_m, "%u", &local_m_int); | ||
338 | if (errno != 0) | ||
339 | { | ||
340 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
341 | } | ||
342 | GNUNET_assert (0 < sscanf_ret); | ||
343 | |||
344 | if (0 == n_int) | ||
345 | num = m_int; | ||
346 | else | ||
347 | num = (n_int - 1) * local_m_int + m_int + topology->nodes_x; | ||
348 | |||
349 | block_send = GNUNET_TESTING_cmd_block_until_external_trigger ( | ||
350 | "block"); | ||
351 | block_receive = GNUNET_TESTING_cmd_block_until_external_trigger ( | ||
352 | "block-receive"); | ||
353 | connect_peers = GNUNET_TRANSPORT_cmd_connect_peers ("connect-peers", | ||
354 | "start-peer", | ||
355 | "system-create", | ||
356 | num, | ||
357 | topology, | ||
358 | 0, | ||
359 | GNUNET_YES); | ||
360 | local_prepared = GNUNET_TESTING_cmd_local_test_prepared ( | ||
361 | "local-test-prepared", | ||
362 | write_message); | ||
363 | |||
364 | |||
365 | GNUNET_asprintf (&ts->cfgname, | ||
366 | "test_transport_api2_tcp_node1.conf"); | ||
367 | |||
368 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
369 | "plugin cfgname: %s\n", | ||
370 | ts->cfgname); | ||
371 | |||
372 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
373 | "node ip: %s\n", | ||
374 | node_ip); | ||
375 | |||
376 | GNUNET_asprintf (&ts->testdir, | ||
377 | "%s%s%s", | ||
378 | BASE_DIR, | ||
379 | m, | ||
380 | n); | ||
381 | |||
382 | struct GNUNET_MQ_MessageHandler handlers[] = { | ||
383 | GNUNET_MQ_hd_var_size (test, | ||
384 | GNUNET_TRANSPORT_TESTING_SIMPLE_PERFORMANCE_MTYPE, | ||
385 | struct | ||
386 | GNUNET_TRANSPORT_TESTING_PerformanceTestMessage, | ||
387 | ts), | ||
388 | GNUNET_MQ_handler_end () | ||
389 | }; | ||
390 | |||
391 | start_peer = GNUNET_TRANSPORT_cmd_start_peer ("start-peer", | ||
392 | "system-create", | ||
393 | num, | ||
394 | node_ip, | ||
395 | handlers, | ||
396 | ts->cfgname, | ||
397 | notify_connect, | ||
398 | GNUNET_NO); | ||
399 | |||
400 | struct GNUNET_TESTING_Command commands[] = { | ||
401 | GNUNET_TESTING_cmd_system_create ("system-create", | ||
402 | ts->testdir), | ||
403 | start_peer, | ||
404 | GNUNET_TESTING_cmd_barrier_reached ("ready-to-connect-reached", | ||
405 | "ready-to-connect", | ||
406 | GNUNET_NO, | ||
407 | num, | ||
408 | GNUNET_NO, | ||
409 | write_message), | ||
410 | connect_peers, | ||
411 | GNUNET_TRANSPORT_cmd_send_simple_performance ("send-simple", | ||
412 | "start-peer", | ||
413 | "system-create", | ||
414 | num, | ||
415 | MESSAGE_SIZE, | ||
416 | MAX_RECEIVED, | ||
417 | topology), | ||
418 | block_receive, | ||
419 | GNUNET_TESTING_cmd_barrier_reached ("test-case-finished-reached", | ||
420 | "test-case-finished", | ||
421 | GNUNET_NO, | ||
422 | num, | ||
423 | GNUNET_NO, | ||
424 | write_message), | ||
425 | GNUNET_TRANSPORT_cmd_stop_peer ("stop-peer", | ||
426 | "start-peer"), | ||
427 | GNUNET_TESTING_cmd_system_destroy ("system-destroy", | ||
428 | "system-create"), | ||
429 | GNUNET_TESTING_cmd_end () | ||
430 | }; | ||
431 | |||
432 | ts->write_message = write_message; | ||
433 | |||
434 | is = GNUNET_TESTING_run (commands, | ||
435 | TIMEOUT, | ||
436 | &handle_result, | ||
437 | ts); | ||
438 | return is; | ||
439 | } | ||
440 | |||
441 | |||
442 | /** | ||
443 | * Entry point for the plugin. | ||
444 | * | ||
445 | * @param cls NULL | ||
446 | * @return the exported block API | ||
447 | */ | ||
448 | void * | ||
449 | libgnunet_test_transport_plugin_cmd_simple_send_performance_init (void *cls) | ||
450 | { | ||
451 | struct GNUNET_TESTING_PluginFunctions *api; | ||
452 | |||
453 | GNUNET_log_setup ("simple-send", | ||
454 | "DEBUG", | ||
455 | NULL); | ||
456 | |||
457 | api = GNUNET_new (struct GNUNET_TESTING_PluginFunctions); | ||
458 | api->start_testcase = &start_testcase; | ||
459 | api->get_waiting_for_barriers = get_waiting_for_barriers; | ||
460 | return api; | ||
461 | } | ||
462 | |||
463 | |||
464 | /** | ||
465 | * Exit point from the plugin. | ||
466 | * | ||
467 | * @param cls the return value from #libgnunet_test_transport_plugin_simple_send_performance_init | ||
468 | * @return NULL | ||
469 | */ | ||
470 | void * | ||
471 | libgnunet_test_transport_plugin_cmd_simple_send_performance_done (void *cls) | ||
472 | { | ||
473 | struct GNUNET_TESTING_PluginFunctions *api = cls; | ||
474 | |||
475 | GNUNET_free (api); | ||
476 | return NULL; | ||
477 | } | ||
478 | |||
479 | |||
480 | /* end of plugin_cmd_simple_send.c */ | ||
diff --git a/src/service/transport/test_transport_plugin_cmd_udp_backchannel.c b/src/service/transport/test_transport_plugin_cmd_udp_backchannel.c new file mode 100644 index 000000000..7e67d6fad --- /dev/null +++ b/src/service/transport/test_transport_plugin_cmd_udp_backchannel.c | |||
@@ -0,0 +1,364 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file testbed/plugin_cmd_simple_send.c | ||
23 | * @brief a plugin to provide the API for running test cases. | ||
24 | * @author t3sserakt | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_testing_barrier.h" | ||
28 | #include "gnunet_testing_netjail_lib.h" | ||
29 | #include "gnunet_util_lib.h" | ||
30 | #include "gnunet_transport_application_service.h" | ||
31 | #include "transport-testing2.h" | ||
32 | #include "transport-testing-cmds.h" | ||
33 | #include "gnunet_testing_barrier.h" | ||
34 | |||
35 | /** | ||
36 | * Generic logging shortcut | ||
37 | */ | ||
38 | #define LOG(kind, ...) GNUNET_log_from (kind, "udp-backchannel", __VA_ARGS__) | ||
39 | |||
40 | #define BASE_DIR "testdir" | ||
41 | |||
42 | #define TOPOLOGY_CONFIG "test_transport_udp_backchannel_topo.conf" | ||
43 | |||
44 | #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 600) | ||
45 | |||
46 | static struct GNUNET_TESTING_Command block_send; | ||
47 | |||
48 | static struct GNUNET_TESTING_Command connect_peers; | ||
49 | |||
50 | static struct GNUNET_TESTING_Command local_prepared; | ||
51 | |||
52 | static struct GNUNET_TESTING_Interpreter *is; | ||
53 | |||
54 | |||
55 | /** | ||
56 | * Function called to check a message of type GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE being | ||
57 | * received. | ||
58 | * | ||
59 | */ | ||
60 | static int | ||
61 | check_test (void *cls, | ||
62 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *message) | ||
63 | { | ||
64 | return GNUNET_OK; | ||
65 | } | ||
66 | |||
67 | |||
68 | /** | ||
69 | * Function called to handle a message of type GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE | ||
70 | * being received. | ||
71 | * | ||
72 | */ | ||
73 | static void | ||
74 | handle_test (void *cls, | ||
75 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *message) | ||
76 | { | ||
77 | // struct GNUNET_TESTING_AsyncContext *ac; | ||
78 | |||
79 | /*GNUNET_TESTING_get_trait_async_context (&block_receive, | ||
80 | &ac); | ||
81 | if ((NULL == ac) || (NULL == ac->cont)) | ||
82 | GNUNET_TESTING_async_fail (ac); | ||
83 | else | ||
84 | GNUNET_TESTING_async_finish (ac);*/ | ||
85 | } | ||
86 | |||
87 | |||
88 | struct GNUNET_TESTING_BarrierList * | ||
89 | get_waiting_for_barriers () | ||
90 | { | ||
91 | // No Barrier | ||
92 | return GNUNET_new (struct GNUNET_TESTING_BarrierList); | ||
93 | } | ||
94 | |||
95 | |||
96 | /** | ||
97 | * Callback to set the flag indicating all peers started. Will be called via the plugin api. | ||
98 | * | ||
99 | */ | ||
100 | static void | ||
101 | all_peers_started () | ||
102 | { | ||
103 | struct GNUNET_TESTING_AsyncContext *ac; | ||
104 | |||
105 | GNUNET_TESTING_get_trait_async_context (&block_send, | ||
106 | &ac); | ||
107 | GNUNET_assert (NULL != ac); | ||
108 | if ((NULL == ac->cont)) | ||
109 | GNUNET_TESTING_async_fail ((struct GNUNET_TESTING_AsyncContext *) ac); | ||
110 | else | ||
111 | GNUNET_TESTING_async_finish ((struct GNUNET_TESTING_AsyncContext *) ac); | ||
112 | } | ||
113 | |||
114 | |||
115 | /** | ||
116 | * Function called with the final result of the test. | ||
117 | * | ||
118 | * @param cls the `struct MainParams` | ||
119 | * @param rv #GNUNET_OK if the test passed | ||
120 | */ | ||
121 | static void | ||
122 | handle_result (void *cls, | ||
123 | enum GNUNET_GenericReturnValue rv) | ||
124 | { | ||
125 | struct TestState *ts = cls; | ||
126 | |||
127 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
128 | "Local test exits with status %d\n", | ||
129 | rv); | ||
130 | |||
131 | ts->finished_cb (rv); | ||
132 | GNUNET_free (ts->testdir); | ||
133 | GNUNET_free (ts->cfgname); | ||
134 | GNUNET_TESTING_free_topology (ts->topology); | ||
135 | GNUNET_free (ts); | ||
136 | } | ||
137 | |||
138 | |||
139 | /** | ||
140 | * Callback from start peer cmd for signaling a peer got connected. | ||
141 | * | ||
142 | */ | ||
143 | static void * | ||
144 | notify_connect (struct GNUNET_TESTING_Interpreter *is, | ||
145 | const struct GNUNET_PeerIdentity *peer) | ||
146 | { | ||
147 | const struct ConnectPeersState *cps; | ||
148 | |||
149 | GNUNET_TRANSPORT_TESTING_get_trait_connect_peer_state (&connect_peers, | ||
150 | &cps); | ||
151 | void *ret = NULL; | ||
152 | |||
153 | cps->notify_connect (is, | ||
154 | peer); | ||
155 | return ret; | ||
156 | } | ||
157 | |||
158 | |||
159 | /** | ||
160 | * Callback to set the flag indicating all peers are prepared to finish. Will be called via the plugin api. | ||
161 | */ | ||
162 | static void | ||
163 | all_local_tests_prepared () | ||
164 | { | ||
165 | const struct GNUNET_TESTING_LocalPreparedState *lfs; | ||
166 | |||
167 | GNUNET_TESTING_get_trait_local_prepared_state (&local_prepared, | ||
168 | &lfs); | ||
169 | GNUNET_assert (NULL != &lfs->ac); | ||
170 | if (NULL == lfs->ac.cont) | ||
171 | GNUNET_TESTING_async_fail ((struct GNUNET_TESTING_AsyncContext *) &lfs->ac); | ||
172 | else | ||
173 | GNUNET_TESTING_async_finish ((struct | ||
174 | GNUNET_TESTING_AsyncContext *) &lfs->ac); | ||
175 | } | ||
176 | |||
177 | |||
178 | /** | ||
179 | * Entry point for the plugin. | ||
180 | * | ||
181 | * @param cls NULL | ||
182 | * @return the exported block API | ||
183 | */ | ||
184 | void * | ||
185 | libgnunet_test_transport_plugin_cmd_udp_backchannel_init (void *cls) | ||
186 | { | ||
187 | struct GNUNET_TESTING_PluginFunctions *api; | ||
188 | |||
189 | unsigned int n_int; | ||
190 | unsigned int m_int; | ||
191 | unsigned int local_m_int; | ||
192 | unsigned int num; | ||
193 | struct TestState *ts = GNUNET_new (struct TestState); | ||
194 | struct GNUNET_TESTING_NetjailTopology *topology; | ||
195 | unsigned int sscanf_ret = 0; | ||
196 | |||
197 | ts->finished_cb = finished_cb; | ||
198 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
199 | "n %s m %s\n", | ||
200 | n, | ||
201 | m); | ||
202 | |||
203 | if (GNUNET_YES == *read_file) | ||
204 | { | ||
205 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
206 | "read from file\n"); | ||
207 | topology = GNUNET_TESTING_get_topo_from_file (topology_data); | ||
208 | } | ||
209 | else | ||
210 | topology = GNUNET_TESTING_get_topo_from_string (topology_data); | ||
211 | |||
212 | ts->topology = topology; | ||
213 | |||
214 | errno = 0; | ||
215 | sscanf_ret = sscanf (m, "%u", &m_int); | ||
216 | if (errno != 0) | ||
217 | { | ||
218 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
219 | } | ||
220 | GNUNET_assert (0 < sscanf_ret); | ||
221 | errno = 0; | ||
222 | sscanf_ret = sscanf (n, "%u", &n_int); | ||
223 | if (errno != 0) | ||
224 | { | ||
225 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
226 | } | ||
227 | GNUNET_assert (0 < sscanf_ret); | ||
228 | errno = 0; | ||
229 | sscanf_ret = sscanf (local_m, "%u", &local_m_int); | ||
230 | if (errno != 0) | ||
231 | { | ||
232 | GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sscanf"); | ||
233 | } | ||
234 | GNUNET_assert (0 < sscanf_ret); | ||
235 | |||
236 | |||
237 | if (0 == n_int) | ||
238 | num = m_int; | ||
239 | else | ||
240 | num = (n_int - 1) * local_m_int + m_int + topology->nodes_x; | ||
241 | |||
242 | block_send = GNUNET_TESTING_cmd_block_until_external_trigger ( | ||
243 | "block"); | ||
244 | connect_peers = GNUNET_TRANSPORT_cmd_connect_peers ("connect-peers", | ||
245 | "start-peer", | ||
246 | "system-create", | ||
247 | num, | ||
248 | topology, | ||
249 | 0, | ||
250 | GNUNET_YES); | ||
251 | local_prepared = GNUNET_TESTING_cmd_local_test_prepared ( | ||
252 | "local-test-prepared", | ||
253 | write_message); | ||
254 | |||
255 | GNUNET_asprintf (&ts->cfgname, | ||
256 | "test_transport_api2_tcp_node1.conf"); | ||
257 | |||
258 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
259 | "plugin cfgname: %s\n", | ||
260 | ts->cfgname); | ||
261 | |||
262 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
263 | "node ip: %s\n", | ||
264 | node_ip); | ||
265 | |||
266 | GNUNET_asprintf (&ts->testdir, | ||
267 | "%s%s%s", | ||
268 | BASE_DIR, | ||
269 | m, | ||
270 | n); | ||
271 | |||
272 | struct GNUNET_MQ_MessageHandler handlers[] = { | ||
273 | GNUNET_MQ_hd_var_size (test, | ||
274 | GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE, | ||
275 | struct GNUNET_TRANSPORT_TESTING_TestMessage, | ||
276 | NULL), | ||
277 | GNUNET_MQ_handler_end () | ||
278 | }; | ||
279 | |||
280 | struct GNUNET_TESTING_Command commands[] = { | ||
281 | GNUNET_TESTING_cmd_system_create ("system-create", | ||
282 | ts->testdir), | ||
283 | GNUNET_TRANSPORT_cmd_start_peer ("start-peer", | ||
284 | "system-create", | ||
285 | num, | ||
286 | node_ip, | ||
287 | handlers, | ||
288 | ts->cfgname, | ||
289 | notify_connect, | ||
290 | GNUNET_NO), | ||
291 | GNUNET_TESTING_cmd_send_peer_ready ("send-peer-ready", | ||
292 | write_message), | ||
293 | block_send, | ||
294 | connect_peers, | ||
295 | GNUNET_TRANSPORT_cmd_backchannel_check ("backchannel-check", | ||
296 | "start-peer", | ||
297 | "system-create", | ||
298 | num, | ||
299 | m_int, | ||
300 | n_int, | ||
301 | topology), | ||
302 | local_prepared, | ||
303 | GNUNET_TRANSPORT_cmd_stop_peer ("stop-peer", | ||
304 | "start-peer"), | ||
305 | GNUNET_TESTING_cmd_system_destroy ("system-destroy", | ||
306 | "system-create"), | ||
307 | GNUNET_TESTING_cmd_end () | ||
308 | }; | ||
309 | |||
310 | return GNUNET_TESTING_make_plugin (commands); | ||
311 | } | ||
312 | |||
313 | |||
314 | GNUNET_TESTING_MAKE_PLUGIN ( | ||
315 | libgnunet, | ||
316 | udp_backchannel, | ||
317 | GNUNET_TESTING_cmd_system_create ("system-create", | ||
318 | ts->testdir), | ||
319 | GNUNET_TRANSPORT_cmd_start_peer ("start-peer", | ||
320 | "system-create", | ||
321 | num, | ||
322 | node_ip, | ||
323 | handlers, | ||
324 | ts->cfgname, | ||
325 | notify_connect, | ||
326 | GNUNET_NO), | ||
327 | GNUNET_TESTING_cmd_send_peer_ready ( | ||
328 | "send-peer-ready", | ||
329 | write_message), | ||
330 | block_send, | ||
331 | connect_peers, | ||
332 | GNUNET_TRANSPORT_cmd_backchannel_check ( | ||
333 | "backchannel-check", | ||
334 | "start-peer", | ||
335 | "system-create", | ||
336 | num, | ||
337 | m_int, | ||
338 | n_int, | ||
339 | topology), | ||
340 | local_prepared, | ||
341 | GNUNET_TRANSPORT_cmd_stop_peer ("stop-peer", | ||
342 | "start-peer"), | ||
343 | GNUNET_TESTING_cmd_system_destroy ("system-destroy", | ||
344 | "system-create") | ||
345 | ); | ||
346 | |||
347 | |||
348 | /** | ||
349 | * Exit point from the plugin. | ||
350 | * | ||
351 | * @param cls the return value from #libgnunet_test_transport_plugin_block_test_init | ||
352 | * @return NULL | ||
353 | */ | ||
354 | void * | ||
355 | libgnunet_test_transport_plugin_cmd_udp_backchannel_done (void *cls) | ||
356 | { | ||
357 | struct GNUNET_TESTING_PluginFunctions *api = cls; | ||
358 | |||
359 | GNUNET_free (api); | ||
360 | return NULL; | ||
361 | } | ||
362 | |||
363 | |||
364 | /* end of plugin_cmd_simple_send.c */ | ||
diff --git a/src/service/transport/test_transport_simple_send.sh b/src/service/transport/test_transport_simple_send.sh new file mode 100755 index 000000000..0250070be --- /dev/null +++ b/src/service/transport/test_transport_simple_send.sh | |||
@@ -0,0 +1,11 @@ | |||
1 | #!/bin/bash | ||
2 | if ! [ -d "/run/netns" ]; then | ||
3 | echo You have to create the directory /run/netns. | ||
4 | fi | ||
5 | if [ -f /proc/sys/kernel/unprivileged_userns_clone ]; then | ||
6 | if [ "$(cat /proc/sys/kernel/unprivileged_userns_clone)" != 1 ]; then | ||
7 | echo -e "Error during test setup: The kernel parameter kernel.unprivileged_userns_clone has to be set to 1! One has to execute\n\n sysctl kernel.unprivileged_userns_clone=1\n" | ||
8 | exit 78 | ||
9 | fi | ||
10 | fi | ||
11 | exec unshare -r -nmU bash -c "mount -t tmpfs --make-rshared tmpfs /run/netns; ./test_transport_start_with_config test_transport_simple_send_topo.conf" | ||
diff --git a/src/service/transport/test_transport_simple_send_broadcast.sh b/src/service/transport/test_transport_simple_send_broadcast.sh new file mode 100755 index 000000000..a4801bf70 --- /dev/null +++ b/src/service/transport/test_transport_simple_send_broadcast.sh | |||
@@ -0,0 +1,11 @@ | |||
1 | #!/bin/bash | ||
2 | if ! [ -d "/run/netns" ]; then | ||
3 | echo You have to create the directory /run/netns. | ||
4 | fi | ||
5 | if [ -f /proc/sys/kernel/unprivileged_userns_clone ]; then | ||
6 | if [ "$(cat /proc/sys/kernel/unprivileged_userns_clone)" != 1 ]; then | ||
7 | echo -e "Error during test setup: The kernel parameter kernel.unprivileged_userns_clone has to be set to 1! One has to execute\n\n sysctl kernel.unprivileged_userns_clone=1\n" | ||
8 | exit 78 | ||
9 | fi | ||
10 | fi | ||
11 | exec unshare -r -nmU bash -c "mount -t tmpfs --make-rshared tmpfs /run/netns; ./test_transport_start_with_config test_transport_simple_send_broadcast_topo.conf" | ||
diff --git a/src/service/transport/test_transport_simple_send_broadcast_topo.conf b/src/service/transport/test_transport_simple_send_broadcast_topo.conf new file mode 100644 index 000000000..aa4964f81 --- /dev/null +++ b/src/service/transport/test_transport_simple_send_broadcast_topo.conf | |||
@@ -0,0 +1,4 @@ | |||
1 | M:2 | ||
2 | N:1 | ||
3 | X:0 | ||
4 | T:libgnunet_test_transport_plugin_cmd_simple_send_broadcast \ No newline at end of file | ||
diff --git a/src/service/transport/test_transport_simple_send_dv_circle.sh b/src/service/transport/test_transport_simple_send_dv_circle.sh new file mode 100755 index 000000000..bd5f00abe --- /dev/null +++ b/src/service/transport/test_transport_simple_send_dv_circle.sh | |||
@@ -0,0 +1,11 @@ | |||
1 | #!/bin/bash | ||
2 | if ! [ -d "/run/netns" ]; then | ||
3 | echo You have to create the directory /run/netns. | ||
4 | fi | ||
5 | if [ -f /proc/sys/kernel/unprivileged_userns_clone ]; then | ||
6 | if [ "$(cat /proc/sys/kernel/unprivileged_userns_clone)" != 1 ]; then | ||
7 | echo -e "Error during test setup: The kernel parameter kernel.unprivileged_userns_clone has to be set to 1! One has to execute\n\n sysctl kernel.unprivileged_userns_clone=1\n" | ||
8 | exit 78 | ||
9 | fi | ||
10 | fi | ||
11 | exec unshare -r -nmU bash -c "mount -t tmpfs --make-rshared tmpfs /run/netns; ./test_transport_start_with_config test_transport_distance_vector_circle_topo.conf" | ||
diff --git a/src/service/transport/test_transport_simple_send_dv_inverse.sh b/src/service/transport/test_transport_simple_send_dv_inverse.sh new file mode 100755 index 000000000..cf7b863a0 --- /dev/null +++ b/src/service/transport/test_transport_simple_send_dv_inverse.sh | |||
@@ -0,0 +1,12 @@ | |||
1 | #!/bin/bash | ||
2 | if ! [ -d "/run/netns" ]; then | ||
3 | echo You have to create the directory /run/netns. | ||
4 | fi | ||
5 | if [ -f /proc/sys/kernel/unprivileged_userns_clone ]; then | ||
6 | if [ "$(cat /proc/sys/kernel/unprivileged_userns_clone)" != 1 ]; then | ||
7 | echo -e "Error during test setup: The kernel parameter kernel.unprivileged_userns_clone has to be set to 1! One has to execute\n\n sysctl kernel.unprivileged_userns_clone=1\n" | ||
8 | exit 78 | ||
9 | fi | ||
10 | fi | ||
11 | # exec unshare -r -nmU bash -c "mount -t tmpfs --make-rshared tmpfs /run/netns; valgrind --leak-check=full --track-origins=yes --trace-children=yes --trace-children-skip=/usr/bin/awk,/usr/bin/cut,/usr/bin/seq,/sbin/ip/sed/bash ./test_transport_start_with_config test_transport_distance_vector_inverse_topo.conf" | ||
12 | exec unshare -r -nmU bash -c "mount -t tmpfs --make-rshared tmpfs /run/netns; ./test_transport_start_with_config test_transport_distance_vector_inverse_topo.conf" | ||
diff --git a/src/service/transport/test_transport_simple_send_performance.sh b/src/service/transport/test_transport_simple_send_performance.sh new file mode 100755 index 000000000..12798c2f0 --- /dev/null +++ b/src/service/transport/test_transport_simple_send_performance.sh | |||
@@ -0,0 +1,11 @@ | |||
1 | #!/bin/bash | ||
2 | if ! [ -d "/run/netns" ]; then | ||
3 | echo You have to create the directory /run/netns. | ||
4 | fi | ||
5 | if [ -f /proc/sys/kernel/unprivileged_userns_clone ]; then | ||
6 | if [ "$(cat /proc/sys/kernel/unprivileged_userns_clone)" != 1 ]; then | ||
7 | echo -e "Error during test setup: The kernel parameter kernel.unprivileged_userns_clone has to be set to 1! One has to execute\n\n sysctl kernel.unprivileged_userns_clone=1\n" | ||
8 | exit 78 | ||
9 | fi | ||
10 | fi | ||
11 | exec unshare -r -nmU bash -c "mount -t tmpfs --make-rshared tmpfs /run/netns; ./test_transport_start_with_config test_transport_simple_send_performance_topo.conf" | ||
diff --git a/src/service/transport/test_transport_simple_send_performance_topo.conf b/src/service/transport/test_transport_simple_send_performance_topo.conf new file mode 100644 index 000000000..9f39cd9bc --- /dev/null +++ b/src/service/transport/test_transport_simple_send_performance_topo.conf | |||
@@ -0,0 +1,6 @@ | |||
1 | M:2 | ||
2 | N:1 | ||
3 | X:0 | ||
4 | T:libgnunet_test_transport_plugin_cmd_simple_send_performance | ||
5 | P:1:1|{connect:{P:1:2:tcp}|{P:1:2:udp}} | ||
6 | P:1:2|{connect:{P:1:1:tcp}|{P:1:1:udp}} \ No newline at end of file | ||
diff --git a/src/service/transport/test_transport_simple_send_string.sh b/src/service/transport/test_transport_simple_send_string.sh new file mode 100755 index 000000000..211abb494 --- /dev/null +++ b/src/service/transport/test_transport_simple_send_string.sh | |||
@@ -0,0 +1,21 @@ | |||
1 | #!/bin/bash | ||
2 | string=$(cat << EOF | ||
3 | M:2 | ||
4 | N:1 | ||
5 | X:0 | ||
6 | T:libgnunet_test_transport_plugin_cmd_simple_send | ||
7 | P:1:1|{connect:{P:1:2:tcp}} | ||
8 | P:1:2|{connect:{P:1:1:tcp}} | ||
9 | EOF | ||
10 | ) | ||
11 | if ! [ -d "/run/netns" ]; then | ||
12 | echo You have to create the directory /run/netns. | ||
13 | fi | ||
14 | if [ -f /proc/sys/kernel/unprivileged_userns_clone ]; then | ||
15 | if [ "$(cat /proc/sys/kernel/unprivileged_userns_clone)" != 1 ]; then | ||
16 | echo -e "Error during test setup: The kernel parameter kernel.unprivileged_userns_clone has to be set to 1! One has to execute\n\n sysctl kernel.unprivileged_userns_clone=1\n" | ||
17 | exit 78 | ||
18 | fi | ||
19 | fi | ||
20 | |||
21 | exec unshare -r -nmU bash -c "mount -t tmpfs --make-rshared tmpfs /run/netns; ./test_transport_start_with_config -s '$string'" | ||
diff --git a/src/service/transport/test_transport_simple_send_topo.conf b/src/service/transport/test_transport_simple_send_topo.conf new file mode 100644 index 000000000..2c16201f5 --- /dev/null +++ b/src/service/transport/test_transport_simple_send_topo.conf | |||
@@ -0,0 +1,6 @@ | |||
1 | M:2 | ||
2 | N:1 | ||
3 | X:0 | ||
4 | T:libgnunet_test_transport_plugin_cmd_simple_send | ||
5 | P:1:1|{connect:{P:1:2:tcp}} | ||
6 | P:1:2|{connect:{P:1:1:tcp}} \ No newline at end of file | ||
diff --git a/src/service/transport/test_transport_start_testcase.sh b/src/service/transport/test_transport_start_testcase.sh new file mode 100755 index 000000000..ad9832fb8 --- /dev/null +++ b/src/service/transport/test_transport_start_testcase.sh | |||
@@ -0,0 +1,12 @@ | |||
1 | #!/bin/bash | ||
2 | #read -p "Test case configuration to use:" conf | ||
3 | #if ! [ -d "/run/netns" ]; then | ||
4 | # echo You have to create the directory /run/netns. | ||
5 | #fi | ||
6 | #if [ -f /proc/sys/kernel/unprivileged_userns_clone ]; then | ||
7 | # if [ "$(cat /proc/sys/kernel/unprivileged_userns_clone)" != 1 ]; then | ||
8 | # echo -e "Error during test setup: The kernel parameter kernel.unprivileged_userns_clone has to be set to 1! One has to execute\n\n sysctl kernel.unprivileged_userns_clone=1\n" | ||
9 | # exit 78 | ||
10 | # fi | ||
11 | #fi | ||
12 | #exec unshare -r -nmU bash -c "mount -t tmpfs --make-rshared tmpfs /run/netns; ./test_transport_start_with_config $conf" | ||
diff --git a/src/service/transport/test_transport_start_with_config.c b/src/service/transport/test_transport_start_with_config.c new file mode 100644 index 000000000..349cd65a5 --- /dev/null +++ b/src/service/transport/test_transport_start_with_config.c | |||
@@ -0,0 +1,121 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/test_transport_start_with_config.c | ||
23 | * @brief Generic program to start testcases in an configurable topology. | ||
24 | * @author t3sserakt | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_testing_ng_lib.h" | ||
28 | #include "gnunet_testing_netjail_lib.h" | ||
29 | #include "gnunet_util_lib.h" | ||
30 | |||
31 | #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 600) | ||
32 | |||
33 | |||
34 | int | ||
35 | main (int argc, | ||
36 | char *const *argv) | ||
37 | { | ||
38 | char *topology_data; | ||
39 | char *topology_data_script; | ||
40 | struct GNUNET_TESTING_NetjailTopology *topology; | ||
41 | unsigned int read_file = GNUNET_YES; | ||
42 | int ret; | ||
43 | char *rest = NULL; | ||
44 | char *token; | ||
45 | size_t single_line_len; | ||
46 | size_t data_len; | ||
47 | |||
48 | GNUNET_log_setup ("test-netjail", | ||
49 | "INFO", | ||
50 | NULL); | ||
51 | |||
52 | if (0 == strcmp ("-s", argv[1])) | ||
53 | { | ||
54 | data_len = strlen (argv[2]); | ||
55 | topology_data = GNUNET_malloc (data_len); | ||
56 | topology_data_script = GNUNET_malloc (data_len); | ||
57 | token = strtok_r (argv[2], "\n", &rest); | ||
58 | while (NULL != token) | ||
59 | { | ||
60 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
61 | "token1 %s\n", | ||
62 | token); | ||
63 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
64 | "token2 %s\n", | ||
65 | token); | ||
66 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
67 | "topology_data %s\n", | ||
68 | topology_data); | ||
69 | strcat (topology_data_script, token); | ||
70 | strcat (topology_data_script, " "); | ||
71 | strcat (topology_data, token); | ||
72 | strcat (topology_data, "\n"); | ||
73 | token = strtok_r (NULL, "\n", &rest); | ||
74 | } | ||
75 | single_line_len = strlen (topology_data); | ||
76 | topology_data_script [single_line_len - 1] = '\0'; | ||
77 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
78 | "read from string\n"); | ||
79 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
80 | "topology_data %s\n", | ||
81 | topology_data); | ||
82 | read_file = GNUNET_NO; | ||
83 | topology = GNUNET_TESTING_get_topo_from_string (topology_data); | ||
84 | } | ||
85 | else | ||
86 | { | ||
87 | topology_data = argv[1]; | ||
88 | topology_data_script = argv[1]; | ||
89 | topology = GNUNET_TESTING_get_topo_from_file (topology_data); | ||
90 | } | ||
91 | |||
92 | struct GNUNET_TESTING_Command commands[] = { | ||
93 | GNUNET_TESTING_cmd_netjail_start ("netjail-start", | ||
94 | topology_data_script, | ||
95 | &read_file), | ||
96 | GNUNET_TESTING_cmd_netjail_start_cmds_helper ("netjail-start-testbed", | ||
97 | topology, | ||
98 | &read_file, | ||
99 | topology_data_script, | ||
100 | TIMEOUT), | ||
101 | GNUNET_TESTING_cmd_stop_cmds_helper ("stop-testbed", | ||
102 | "netjail-start-testbed", | ||
103 | topology), | ||
104 | GNUNET_TESTING_cmd_netjail_stop ("netjail-stop", | ||
105 | topology_data_script, | ||
106 | &read_file), | ||
107 | GNUNET_TESTING_cmd_end () | ||
108 | }; | ||
109 | |||
110 | ret = GNUNET_TESTING_main (commands, | ||
111 | TIMEOUT); | ||
112 | |||
113 | if (0 == strcmp ("-s", argv[1])) | ||
114 | { | ||
115 | GNUNET_free (topology_data_script); | ||
116 | GNUNET_free (topology_data); | ||
117 | } | ||
118 | GNUNET_TESTING_free_topology (topology); | ||
119 | |||
120 | return ret; | ||
121 | } | ||
diff --git a/src/service/transport/test_transport_test_transport_address_switch_tcp_peer1.conf b/src/service/transport/test_transport_test_transport_address_switch_tcp_peer1.conf new file mode 100644 index 000000000..920e8d199 --- /dev/null +++ b/src/service/transport/test_transport_test_transport_address_switch_tcp_peer1.conf | |||
@@ -0,0 +1,29 @@ | |||
1 | @INLINE@ template_cfg_peer1.conf | ||
2 | |||
3 | [ats] | ||
4 | UNSPECIFIED_QUOTA_IN = 8 KiB | ||
5 | UNSPECIFIED_QUOTA_OUT = 8 KiB | ||
6 | # LOOPBACK | ||
7 | LOOPBACK_QUOTA_IN = 8 KiB | ||
8 | LOOPBACK_QUOTA_OUT = 8 KiB | ||
9 | # LAN | ||
10 | LAN_QUOTA_IN = 8 KiB | ||
11 | LAN_QUOTA_OUT = 8 KiB | ||
12 | # WAN | ||
13 | WAN_QUOTA_IN = 8 KiB | ||
14 | WAN_QUOTA_OUT = 8 KiB | ||
15 | # WLAN | ||
16 | WLAN_QUOTA_IN = 8 KiB | ||
17 | WLAN_QUOTA_OUT = 8 KiB | ||
18 | # BLUETOOTH | ||
19 | BLUETOOTH_QUOTA_IN = 8 KiB | ||
20 | BLUETOOTH_QUOTA_OUT = 8 KiB | ||
21 | |||
22 | [PATHS] | ||
23 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/quota-tcp-p1/ | ||
24 | |||
25 | [transport] | ||
26 | PLUGINS = tcp | ||
27 | |||
28 | |||
29 | |||
diff --git a/src/service/transport/test_transport_test_transport_address_switch_tcp_peer2.conf b/src/service/transport/test_transport_test_transport_address_switch_tcp_peer2.conf new file mode 100644 index 000000000..6855cd00d --- /dev/null +++ b/src/service/transport/test_transport_test_transport_address_switch_tcp_peer2.conf | |||
@@ -0,0 +1,29 @@ | |||
1 | @INLINE@ template_cfg_peer2.conf | ||
2 | |||
3 | [ats] | ||
4 | UNSPECIFIED_QUOTA_IN = 8 KiB | ||
5 | UNSPECIFIED_QUOTA_OUT = 8 KiB | ||
6 | # LOOPBACK | ||
7 | LOOPBACK_QUOTA_IN = 8 KiB | ||
8 | LOOPBACK_QUOTA_OUT = 8 KiB | ||
9 | # LAN | ||
10 | LAN_QUOTA_IN = 8 KiB | ||
11 | LAN_QUOTA_OUT = 8 KiB | ||
12 | # WAN | ||
13 | WAN_QUOTA_IN = 8 KiB | ||
14 | WAN_QUOTA_OUT = 8 KiB | ||
15 | # WLAN | ||
16 | WLAN_QUOTA_IN = 8 KiB | ||
17 | WLAN_QUOTA_OUT = 8 KiB | ||
18 | # BLUETOOTH | ||
19 | BLUETOOTH_QUOTA_IN = 8 KiB | ||
20 | BLUETOOTH_QUOTA_OUT = 8 KiB | ||
21 | |||
22 | |||
23 | [PATHS] | ||
24 | GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-p2/ | ||
25 | |||
26 | [transport] | ||
27 | PLUGINS = tcp | ||
28 | |||
29 | |||
diff --git a/src/service/transport/test_transport_testing_startstop.c b/src/service/transport/test_transport_testing_startstop.c new file mode 100644 index 000000000..4783c1813 --- /dev/null +++ b/src/service/transport/test_transport_testing_startstop.c | |||
@@ -0,0 +1,138 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2009, 2010, 2016 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | /** | ||
21 | * @file transport/test_transport_testing_startstop.c | ||
22 | * @brief test case for transport testing library: | ||
23 | * start the peer, get the HELLO message and stop the peer | ||
24 | */ | ||
25 | #include "platform.h" | ||
26 | #include "gnunet_transport_service.h" | ||
27 | #include "transport-testing.h" | ||
28 | |||
29 | #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30) | ||
30 | |||
31 | |||
32 | static struct GNUNET_SCHEDULER_Task *timeout_task; | ||
33 | |||
34 | static struct GNUNET_TRANSPORT_TESTING_PeerContext *p; | ||
35 | |||
36 | static struct GNUNET_TRANSPORT_TESTING_Handle *tth; | ||
37 | |||
38 | static int ret; | ||
39 | |||
40 | |||
41 | static void | ||
42 | end () | ||
43 | { | ||
44 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
45 | "Stopping peers\n"); | ||
46 | if (NULL != timeout_task) | ||
47 | GNUNET_SCHEDULER_cancel (timeout_task); | ||
48 | if (NULL != p) | ||
49 | GNUNET_TRANSPORT_TESTING_stop_peer (p); | ||
50 | if (NULL != tth) | ||
51 | GNUNET_TRANSPORT_TESTING_done (tth); | ||
52 | } | ||
53 | |||
54 | |||
55 | static void | ||
56 | end_badly () | ||
57 | { | ||
58 | timeout_task = NULL; | ||
59 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
60 | "Timeout!\n"); | ||
61 | end (); | ||
62 | ret = GNUNET_SYSERR; | ||
63 | } | ||
64 | |||
65 | |||
66 | static void | ||
67 | start_cb (void *cls) | ||
68 | { | ||
69 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
70 | "Peer %u (`%s') successfully started\n", | ||
71 | p->no, | ||
72 | GNUNET_i2s (&p->id)); | ||
73 | ret = 0; | ||
74 | GNUNET_SCHEDULER_add_now (&end, | ||
75 | NULL); | ||
76 | } | ||
77 | |||
78 | |||
79 | static void | ||
80 | run (void *cls, | ||
81 | char *const *args, | ||
82 | const char *cfgfile, | ||
83 | const struct GNUNET_CONFIGURATION_Handle *cfg) | ||
84 | { | ||
85 | ret = 1; | ||
86 | tth = GNUNET_TRANSPORT_TESTING_init (); | ||
87 | GNUNET_assert (NULL != tth); | ||
88 | |||
89 | timeout_task = | ||
90 | GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_MINUTES, | ||
91 | &end_badly, | ||
92 | NULL); | ||
93 | |||
94 | p = GNUNET_TRANSPORT_TESTING_start_peer (tth, | ||
95 | cfgfile, | ||
96 | 1, | ||
97 | NULL, /* receive cb */ | ||
98 | NULL, /* connect cb */ | ||
99 | NULL, /* disconnect cb */ | ||
100 | NULL, /* nc/nd closure */ | ||
101 | &start_cb, /* startup cb */ | ||
102 | NULL); /* closure */ | ||
103 | if (NULL == p) | ||
104 | { | ||
105 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start peer\n"); | ||
106 | if (timeout_task != NULL) | ||
107 | GNUNET_SCHEDULER_cancel (timeout_task); | ||
108 | timeout_task = GNUNET_SCHEDULER_add_now (&end_badly, NULL); | ||
109 | } | ||
110 | } | ||
111 | |||
112 | |||
113 | int | ||
114 | main (int argc, char *argv[]) | ||
115 | { | ||
116 | char *const argv_1[] = { "test_transport_testing", | ||
117 | "-c", | ||
118 | "test_transport_api_data.conf", | ||
119 | NULL }; | ||
120 | struct GNUNET_GETOPT_CommandLineOption options[] = { | ||
121 | GNUNET_GETOPT_OPTION_END | ||
122 | }; | ||
123 | |||
124 | GNUNET_log_setup ("test_transport_testing_startstop", | ||
125 | "WARNING", | ||
126 | NULL); | ||
127 | GNUNET_PROGRAM_run ((sizeof(argv_1) / sizeof(char *)) - 1, | ||
128 | argv_1, | ||
129 | "test_transport_testing_startstop", "nohelp", | ||
130 | options, | ||
131 | &run, | ||
132 | &ret); | ||
133 | |||
134 | return ret; | ||
135 | } | ||
136 | |||
137 | |||
138 | /* end of test_transport_testing_startstop.c */ | ||
diff --git a/src/service/transport/test_transport_udp_backchannel.sh b/src/service/transport/test_transport_udp_backchannel.sh new file mode 100755 index 000000000..1a7c83385 --- /dev/null +++ b/src/service/transport/test_transport_udp_backchannel.sh | |||
@@ -0,0 +1,14 @@ | |||
1 | #!/bin/bash | ||
2 | if [ -f "test.out" ]; then | ||
3 | rm test.out | ||
4 | fi | ||
5 | if ! [ -d "/run/netns" ]; then | ||
6 | echo You have to create the directory /run/netns. | ||
7 | fi | ||
8 | if [ -f /proc/sys/kernel/unprivileged_userns_clone ]; then | ||
9 | if [ "$(cat /proc/sys/kernel/unprivileged_userns_clone)" != 1 ]; then | ||
10 | echo -e "Error during test setup: The kernel parameter kernel.unprivileged_userns_clone has to be set to 1! One has to execute\n\n sysctl kernel.unprivileged_userns_clone=1\n" | ||
11 | exit 78 | ||
12 | fi | ||
13 | fi | ||
14 | exec unshare -r -nmU bash -c "mount -t tmpfs --make-rshared tmpfs /run/netns; GNUNET_FORCE_LOG=';;;;DEBUG' GNUNET_FORCE_LOGFILE='test.out' ./test_transport_start_with_config test_transport_udp_backchannel_topo.conf" | ||
diff --git a/src/service/transport/test_transport_udp_backchannel_topo.conf b/src/service/transport/test_transport_udp_backchannel_topo.conf new file mode 100644 index 000000000..ad35bde0a --- /dev/null +++ b/src/service/transport/test_transport_udp_backchannel_topo.conf | |||
@@ -0,0 +1,7 @@ | |||
1 | M:1 | ||
2 | N:1 | ||
3 | X:1 | ||
4 | T:libgnunet_test_transport_plugin_cmd_udp_backchannel | ||
5 | K:1|{connect:{P:1:1:tcp}} | ||
6 | R:1|{tcp_port:1}|{udp_port:0} | ||
7 | P:1:1|{connect:{K:1:udp}} | ||
diff --git a/src/service/transport/testing_api_cmd_start_peer.c b/src/service/transport/testing_api_cmd_start_peer.c new file mode 100644 index 000000000..5cf5ee22d --- /dev/null +++ b/src/service/transport/testing_api_cmd_start_peer.c | |||
@@ -0,0 +1,296 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file testing_api_cmd_start_peer.c | ||
23 | * @brief cmd to start a peer. | ||
24 | * @author t3sserakt | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_util_lib.h" | ||
28 | #include "transport-testing-cmds.h" | ||
29 | #include "gnunet_testing_ng_lib.h" | ||
30 | #include "gnunet_transport_testing_ng_lib.h" | ||
31 | |||
32 | |||
33 | /** | ||
34 | * Generic logging shortcut | ||
35 | */ | ||
36 | #define LOG(kind, ...) GNUNET_log (kind, __VA_ARGS__) | ||
37 | |||
38 | |||
39 | /** | ||
40 | * The run method of this cmd will start all services of a peer to test the transport service. | ||
41 | * | ||
42 | */ | ||
43 | static void | ||
44 | start_peer_run (void *cls, | ||
45 | struct GNUNET_TESTING_Interpreter *is) | ||
46 | { | ||
47 | struct GNUNET_TESTING_StartPeerState *sps = cls; | ||
48 | char *emsg = NULL; | ||
49 | struct GNUNET_PeerIdentity dummy; | ||
50 | const struct GNUNET_TESTING_Command *system_cmd; | ||
51 | const struct GNUNET_TESTING_System *tl_system; | ||
52 | char *home; | ||
53 | char *transport_unix_path; | ||
54 | char *tcp_communicator_unix_path; | ||
55 | char *udp_communicator_unix_path; | ||
56 | char *bindto; | ||
57 | char *bindto_udp; | ||
58 | |||
59 | if (GNUNET_NO == GNUNET_DISK_file_test (sps->cfgname)) | ||
60 | { | ||
61 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
62 | "File not found: `%s'\n", | ||
63 | sps->cfgname); | ||
64 | GNUNET_TESTING_interpreter_fail (is); | ||
65 | return; | ||
66 | } | ||
67 | |||
68 | |||
69 | sps->cfg = GNUNET_CONFIGURATION_create (); | ||
70 | GNUNET_assert (GNUNET_OK == | ||
71 | GNUNET_CONFIGURATION_load (sps->cfg, sps->cfgname)); | ||
72 | |||
73 | GNUNET_asprintf (&home, | ||
74 | "$GNUNET_TMP/test-transport/api-tcp-p%u", | ||
75 | sps->no); | ||
76 | |||
77 | GNUNET_asprintf (&transport_unix_path, | ||
78 | "$GNUNET_RUNTIME_DIR/tng-p%u.sock", | ||
79 | sps->no); | ||
80 | |||
81 | GNUNET_asprintf (&tcp_communicator_unix_path, | ||
82 | "$GNUNET_RUNTIME_DIR/tcp-comm-p%u.sock", | ||
83 | sps->no); | ||
84 | |||
85 | GNUNET_asprintf (&udp_communicator_unix_path, | ||
86 | "$GNUNET_RUNTIME_DIR/tcp-comm-p%u.sock", | ||
87 | sps->no); | ||
88 | |||
89 | GNUNET_asprintf (&bindto, | ||
90 | "%s:60002", | ||
91 | sps->node_ip); | ||
92 | |||
93 | GNUNET_asprintf (&bindto_udp, | ||
94 | "2086"); | ||
95 | |||
96 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
97 | "node_ip %s\n", | ||
98 | bindto); | ||
99 | |||
100 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
101 | "bind_udp %s\n", | ||
102 | GNUNET_YES == sps->broadcast ? | ||
103 | bindto_udp : bindto); | ||
104 | |||
105 | GNUNET_CONFIGURATION_set_value_string (sps->cfg, "PATHS", "GNUNET_TEST_HOME", | ||
106 | home); | ||
107 | GNUNET_CONFIGURATION_set_value_string (sps->cfg, "transport", "UNIXPATH", | ||
108 | transport_unix_path); | ||
109 | GNUNET_CONFIGURATION_set_value_string (sps->cfg, "communicator-tcp", | ||
110 | "BINDTO", | ||
111 | bindto); | ||
112 | GNUNET_CONFIGURATION_set_value_string (sps->cfg, "communicator-udp", | ||
113 | "BINDTO", | ||
114 | GNUNET_YES == sps->broadcast ? | ||
115 | bindto_udp : bindto); | ||
116 | GNUNET_CONFIGURATION_set_value_string (sps->cfg, "communicator-tcp", | ||
117 | "UNIXPATH", | ||
118 | tcp_communicator_unix_path); | ||
119 | GNUNET_CONFIGURATION_set_value_string (sps->cfg, "communicator-udp", | ||
120 | "UNIXPATH", | ||
121 | udp_communicator_unix_path); | ||
122 | |||
123 | |||
124 | system_cmd = GNUNET_TESTING_interpreter_lookup_command (is, | ||
125 | sps->system_label); | ||
126 | GNUNET_TESTING_get_trait_test_system (system_cmd, | ||
127 | &tl_system); | ||
128 | |||
129 | sps->tl_system = tl_system; | ||
130 | |||
131 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
132 | "Creating testing library with key number %u\n", | ||
133 | sps->no); | ||
134 | |||
135 | if (GNUNET_SYSERR == | ||
136 | GNUNET_TESTING_configuration_create ((struct | ||
137 | GNUNET_TESTING_System *) tl_system, | ||
138 | sps->cfg)) | ||
139 | { | ||
140 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
141 | "Testing library failed to create unique configuration based on `%s'\n", | ||
142 | sps->cfgname); | ||
143 | GNUNET_CONFIGURATION_destroy (sps->cfg); | ||
144 | GNUNET_TESTING_interpreter_fail (is); | ||
145 | return; | ||
146 | } | ||
147 | |||
148 | sps->peer = GNUNET_TESTING_peer_configure ((struct | ||
149 | GNUNET_TESTING_System *) sps-> | ||
150 | tl_system, | ||
151 | sps->cfg, | ||
152 | sps->no, | ||
153 | NULL, | ||
154 | &emsg); | ||
155 | if (NULL == sps->peer) | ||
156 | { | ||
157 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
158 | "Testing library failed to create unique configuration based on `%s': `%s' with key number %u\n", | ||
159 | sps->cfgname, | ||
160 | emsg, | ||
161 | sps->no); | ||
162 | GNUNET_free (emsg); | ||
163 | GNUNET_TESTING_interpreter_fail (is); | ||
164 | return; | ||
165 | } | ||
166 | |||
167 | if (GNUNET_OK != GNUNET_TESTING_peer_start (sps->peer)) | ||
168 | { | ||
169 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
170 | "Testing library failed to create unique configuration based on `%s'\n", | ||
171 | sps->cfgname); | ||
172 | GNUNET_free (emsg); | ||
173 | GNUNET_TESTING_interpreter_fail (is); | ||
174 | return; | ||
175 | } | ||
176 | |||
177 | memset (&dummy, | ||
178 | '\0', | ||
179 | sizeof(dummy)); | ||
180 | |||
181 | GNUNET_TESTING_peer_get_identity (sps->peer, | ||
182 | &sps->id); | ||
183 | |||
184 | if (0 == memcmp (&dummy, | ||
185 | &sps->id, | ||
186 | sizeof(struct GNUNET_PeerIdentity))) | ||
187 | { | ||
188 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
189 | "Testing library failed to obtain peer identity for peer %u\n", | ||
190 | sps->no); | ||
191 | GNUNET_free (emsg); | ||
192 | GNUNET_TESTING_interpreter_fail (is); | ||
193 | return; | ||
194 | } | ||
195 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
196 | "Peer %u configured with identity `%s'\n", | ||
197 | sps->no, | ||
198 | GNUNET_i2s_full (&sps->id)); | ||
199 | |||
200 | GNUNET_free (home); | ||
201 | GNUNET_free (transport_unix_path); | ||
202 | GNUNET_free (tcp_communicator_unix_path); | ||
203 | GNUNET_free (udp_communicator_unix_path); | ||
204 | GNUNET_free (bindto); | ||
205 | GNUNET_free (bindto_udp); | ||
206 | } | ||
207 | |||
208 | |||
209 | /** | ||
210 | * The cleanup function of this cmd frees resources the cmd allocated. | ||
211 | * | ||
212 | */ | ||
213 | static void | ||
214 | start_peer_cleanup (void *cls) | ||
215 | { | ||
216 | struct GNUNET_TESTING_StartPeerState *sps = cls; | ||
217 | |||
218 | // TODO Investigate why this caused problems during shutdown. | ||
219 | /*if (NULL != sps->cfg) | ||
220 | { | ||
221 | GNUNET_CONFIGURATION_destroy (sps->cfg); | ||
222 | sps->cfg = NULL; | ||
223 | }*/ | ||
224 | GNUNET_free (sps->cfgname); | ||
225 | GNUNET_free (sps->node_ip); | ||
226 | GNUNET_free (sps->system_label); | ||
227 | GNUNET_free (sps->hello); | ||
228 | GNUNET_free (sps->connected_peers_map); | ||
229 | GNUNET_free (sps); | ||
230 | } | ||
231 | |||
232 | |||
233 | /** | ||
234 | * This function prepares an array with traits. | ||
235 | * | ||
236 | */ | ||
237 | static int | ||
238 | start_peer_traits (void *cls, | ||
239 | const void **ret, | ||
240 | const char *trait, | ||
241 | unsigned int index) | ||
242 | { | ||
243 | struct GNUNET_TESTING_StartPeerState *sps = cls; | ||
244 | struct GNUNET_TRANSPORT_ApplicationHandle *ah = sps->ah; | ||
245 | struct GNUNET_PeerIdentity *id = &sps->id; | ||
246 | struct GNUNET_CONTAINER_MultiShortmap *connected_peers_map = | ||
247 | sps->connected_peers_map; | ||
248 | char *hello = sps->hello; | ||
249 | size_t hello_size = sps->hello_size; | ||
250 | struct GNUNET_TESTING_Trait traits[] = { | ||
251 | GNUNET_TRANSPORT_TESTING_make_trait_application_handle ((const void *) ah), | ||
252 | GNUNET_TRANSPORT_TESTING_make_trait_peer_id ((const void *) id), | ||
253 | GNUNET_TRANSPORT_TESTING_make_trait_connected_peers_map ((const | ||
254 | void *) | ||
255 | connected_peers_map), | ||
256 | GNUNET_TRANSPORT_TESTING_make_trait_hello ((const void *) hello), | ||
257 | GNUNET_TRANSPORT_TESTING_make_trait_hello_size ((const void *) hello_size), | ||
258 | GNUNET_TRANSPORT_TESTING_make_trait_state ((const void *) sps), | ||
259 | GNUNET_TRANSPORT_TESTING_make_trait_broadcast ((const void *) &sps-> | ||
260 | broadcast), | ||
261 | GNUNET_TESTING_trait_end () | ||
262 | }; | ||
263 | |||
264 | return GNUNET_TESTING_get_trait (traits, | ||
265 | ret, | ||
266 | trait, | ||
267 | index); | ||
268 | } | ||
269 | |||
270 | |||
271 | struct GNUNET_TESTING_Command | ||
272 | GNUNET_TESTING_cmd_start_peer (const char *label, | ||
273 | const char *system_label, | ||
274 | uint32_t no, | ||
275 | const char *node_ip, | ||
276 | const char *cfgname, | ||
277 | unsigned int broadcast) | ||
278 | { | ||
279 | struct GNUNET_TESTING_StartPeerState *sps; | ||
280 | struct GNUNET_CONTAINER_MultiShortmap *connected_peers_map = | ||
281 | GNUNET_CONTAINER_multishortmap_create (1,GNUNET_NO); | ||
282 | |||
283 | sps = GNUNET_new (struct GNUNET_TESTING_StartPeerState); | ||
284 | sps->no = no; | ||
285 | sps->system_label = GNUNET_strdup (system_label); | ||
286 | sps->connected_peers_map = connected_peers_map; | ||
287 | sps->cfgname = GNUNET_strdup (cfgname); | ||
288 | sps->node_ip = GNUNET_strdup (node_ip); | ||
289 | sps->broadcast = broadcast; | ||
290 | |||
291 | return GNUNET_TESTING_command_new (sps, | ||
292 | label, | ||
293 | &start_peer_run, | ||
294 | &start_peer_cleanup, | ||
295 | &start_peer_traits); | ||
296 | } | ||
diff --git a/src/service/transport/testing_api_cmd_stop_peer.c b/src/service/transport/testing_api_cmd_stop_peer.c new file mode 100644 index 000000000..4ce54585d --- /dev/null +++ b/src/service/transport/testing_api_cmd_stop_peer.c | |||
@@ -0,0 +1,129 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file testing_api_cmd_stop_peer.c | ||
23 | * @brief cmd to stop a peer. | ||
24 | * @author t3sserakt | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_util_lib.h" | ||
28 | #include "gnunet_testing_ng_lib.h" | ||
29 | #include "gnunet_transport_testing_ng_lib.h" | ||
30 | |||
31 | /** | ||
32 | * Generic logging shortcut | ||
33 | */ | ||
34 | #define LOG(kind, ...) GNUNET_log (kind, __VA_ARGS__) | ||
35 | |||
36 | |||
37 | /** | ||
38 | * Struct to hold information for callbacks. | ||
39 | * | ||
40 | */ | ||
41 | struct StopPeerState | ||
42 | { | ||
43 | // Label of the cmd to start the peer. | ||
44 | const char *start_label; | ||
45 | }; | ||
46 | |||
47 | |||
48 | /** | ||
49 | * The run method of this cmd will stop all services of a peer which were used to test the transport service. | ||
50 | * | ||
51 | */ | ||
52 | static void | ||
53 | stop_peer_run (void *cls, | ||
54 | struct GNUNET_TESTING_Interpreter *is) | ||
55 | { | ||
56 | struct StopPeerState *stop_ps = cls; | ||
57 | const struct GNUNET_TESTING_StartPeerState *sps; | ||
58 | const struct GNUNET_TESTING_Command *start_cmd; | ||
59 | |||
60 | start_cmd = GNUNET_TESTING_interpreter_lookup_command (is, | ||
61 | stop_ps->start_label); | ||
62 | GNUNET_TRANSPORT_TESTING_get_trait_state (start_cmd, | ||
63 | &sps); | ||
64 | |||
65 | if (NULL != sps->peer) | ||
66 | { | ||
67 | if (GNUNET_OK != | ||
68 | GNUNET_TESTING_peer_stop (sps->peer)) | ||
69 | { | ||
70 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
71 | "Testing lib failed to stop peer %u (`%s')\n", | ||
72 | sps->no, | ||
73 | GNUNET_i2s (&sps->id)); | ||
74 | } | ||
75 | GNUNET_TESTING_peer_destroy (sps->peer); | ||
76 | } | ||
77 | if (NULL != sps->rh_task) | ||
78 | GNUNET_SCHEDULER_cancel (sps->rh_task); | ||
79 | } | ||
80 | |||
81 | |||
82 | /** | ||
83 | * The cleanup function of this cmd frees resources the cmd allocated. | ||
84 | * | ||
85 | */ | ||
86 | static void | ||
87 | stop_peer_cleanup (void *cls) | ||
88 | { | ||
89 | struct StopPeerState *sps = cls; | ||
90 | |||
91 | GNUNET_free (sps); | ||
92 | } | ||
93 | |||
94 | |||
95 | /** | ||
96 | * Trait function of this cmd does nothing. | ||
97 | * | ||
98 | */ | ||
99 | static int | ||
100 | stop_peer_traits (void *cls, | ||
101 | const void **ret, | ||
102 | const char *trait, | ||
103 | unsigned int index) | ||
104 | { | ||
105 | return GNUNET_OK; | ||
106 | } | ||
107 | |||
108 | |||
109 | /** | ||
110 | * Create command. | ||
111 | * | ||
112 | * @param label name for command. | ||
113 | * @param start_label Label of the cmd to start the peer. | ||
114 | * @return command. | ||
115 | */ | ||
116 | struct GNUNET_TESTING_Command | ||
117 | GNUNET_TESTING_cmd_stop_peer (const char *label, | ||
118 | const char *start_label) | ||
119 | { | ||
120 | struct StopPeerState *sps; | ||
121 | |||
122 | sps = GNUNET_new (struct StopPeerState); | ||
123 | sps->start_label = start_label; | ||
124 | return GNUNET_TESTING_command_new (sps, | ||
125 | label, | ||
126 | &stop_peer_run, | ||
127 | &stop_peer_cleanup, | ||
128 | &stop_peer_traits); | ||
129 | } | ||
diff --git a/src/service/transport/transport-testing-cmds.h b/src/service/transport/transport-testing-cmds.h new file mode 100644 index 000000000..7ebc84d11 --- /dev/null +++ b/src/service/transport/transport-testing-cmds.h | |||
@@ -0,0 +1,273 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport-testing.h | ||
23 | * @brief testing lib for transport service | ||
24 | * @author Matthias Wachs | ||
25 | * @author Christian Grothoff | ||
26 | */ | ||
27 | #ifndef TRANSPORT_TESTING_CMDS_H | ||
28 | #define TRANSPORT_TESTING_CMDS_H | ||
29 | |||
30 | #include "gnunet_testing_ng_lib.h" | ||
31 | #include "gnunet_transport_testing_ng_lib.h" | ||
32 | |||
33 | |||
34 | /** | ||
35 | * Struct to store information needed in callbacks. | ||
36 | * | ||
37 | */ | ||
38 | // FIXME: breaks naming conventions! Needed public? | ||
39 | struct ConnectPeersState | ||
40 | { | ||
41 | /** | ||
42 | * Context for our asynchronous completion. | ||
43 | */ | ||
44 | struct GNUNET_TESTING_AsyncContext ac; | ||
45 | |||
46 | GNUNET_TESTING_notify_connect_cb notify_connect; | ||
47 | |||
48 | /** | ||
49 | * The testing system of this node. | ||
50 | */ | ||
51 | const struct GNUNET_TESTING_System *tl_system; | ||
52 | |||
53 | // Label of the cmd which started the test system. | ||
54 | const char *create_label; | ||
55 | |||
56 | /** | ||
57 | * Number globally identifying the node. | ||
58 | * | ||
59 | */ | ||
60 | uint32_t num; | ||
61 | |||
62 | /** | ||
63 | * Label of the cmd to start a peer. | ||
64 | * | ||
65 | */ | ||
66 | const char *start_peer_label; | ||
67 | |||
68 | /** | ||
69 | * The topology of the test setup. | ||
70 | */ | ||
71 | struct GNUNET_TESTING_NetjailTopology *topology; | ||
72 | |||
73 | /** | ||
74 | * Connections to other peers. | ||
75 | */ | ||
76 | struct GNUNET_TESTING_NodeConnection *node_connections_head; | ||
77 | |||
78 | struct GNUNET_TESTING_Interpreter *is; | ||
79 | |||
80 | /** | ||
81 | * Number of connections. | ||
82 | */ | ||
83 | unsigned int con_num; | ||
84 | |||
85 | /** | ||
86 | * Number of additional connects this cmd will wait for not triggered by this cmd. | ||
87 | */ | ||
88 | unsigned int additional_connects; | ||
89 | |||
90 | /** | ||
91 | * Number of connections we already have a notification for. | ||
92 | */ | ||
93 | unsigned int con_num_notified; | ||
94 | |||
95 | /** | ||
96 | * Number of additional connects this cmd will wait for not triggered by this cmd we already have a notification for. | ||
97 | */ | ||
98 | unsigned int additional_connects_notified; | ||
99 | |||
100 | /** | ||
101 | * Flag indicating, whether the command is waiting for peers to connect that are configured to connect. | ||
102 | */ | ||
103 | unsigned int wait_for_connect; | ||
104 | }; | ||
105 | |||
106 | |||
107 | |||
108 | typedef void * | ||
109 | (*GNUNET_TRANSPORT_notify_connect_cb) (struct GNUNET_TESTING_Interpreter *is, | ||
110 | const struct GNUNET_PeerIdentity *peer); | ||
111 | |||
112 | |||
113 | |||
114 | struct TestState | ||
115 | { | ||
116 | /** | ||
117 | * Callback to write messages to the master loop. | ||
118 | * | ||
119 | */ | ||
120 | GNUNET_TESTING_cmd_helper_write_cb write_message; | ||
121 | |||
122 | /** | ||
123 | * Callback to notify the helper test case has finished. | ||
124 | */ | ||
125 | GNUNET_TESTING_cmd_helper_finish_cb finished_cb; | ||
126 | |||
127 | /** | ||
128 | * The name for a specific test environment directory. | ||
129 | * | ||
130 | */ | ||
131 | char *testdir; | ||
132 | |||
133 | /** | ||
134 | * The name for the configuration file of the specific node. | ||
135 | * | ||
136 | */ | ||
137 | char *cfgname; | ||
138 | |||
139 | /** | ||
140 | * The complete topology information. | ||
141 | */ | ||
142 | struct GNUNET_TESTING_NetjailTopology *topology; | ||
143 | }; | ||
144 | |||
145 | |||
146 | /** | ||
147 | * Create command. | ||
148 | * | ||
149 | * @param label name for command. | ||
150 | * @param system_label Label of the cmd to setup a test environment. | ||
151 | * @param no Decimal number representing the last byte of the IP address of this peer. | ||
152 | * @param node_ip The IP address of this node. | ||
153 | * @param handlers Handler for messages received by this peer. | ||
154 | * @param cfgname Configuration file name for this peer. | ||
155 | * @param notify_connect Method which will be called, when a peer connects. | ||
156 | * @param broadcast Flag indicating, if broadcast should be switched on. | ||
157 | * @return command. | ||
158 | */ | ||
159 | struct GNUNET_TESTING_Command | ||
160 | GNUNET_TRANSPORT_cmd_start_peer (const char *label, | ||
161 | const char *system_label, | ||
162 | uint32_t no, | ||
163 | const char *node_ip, | ||
164 | struct GNUNET_MQ_MessageHandler *handlers, | ||
165 | const char *cfgname, | ||
166 | GNUNET_TRANSPORT_notify_connect_cb | ||
167 | notify_connect, | ||
168 | unsigned int broadcast); | ||
169 | |||
170 | |||
171 | struct GNUNET_TESTING_Command | ||
172 | GNUNET_TRANSPORT_cmd_stop_peer (const char *label, | ||
173 | const char *start_label); | ||
174 | |||
175 | |||
176 | /** | ||
177 | * Create command | ||
178 | * | ||
179 | * @param label name for command | ||
180 | * @param start_peer_label Label of the cmd to start a peer. | ||
181 | * @param create_label Label of the cmd which started the test system. | ||
182 | * @param num Number globally identifying the node. | ||
183 | * @param topology The topology for the test setup. | ||
184 | * @param additional_connects Number of additional connects this cmd will wait for not triggered by this cmd. | ||
185 | * @return command. | ||
186 | */ | ||
187 | struct GNUNET_TESTING_Command | ||
188 | GNUNET_TRANSPORT_cmd_connect_peers ( | ||
189 | const char *label, | ||
190 | const char *start_peer_label, | ||
191 | const char *create_label, | ||
192 | uint32_t num, | ||
193 | struct GNUNET_TESTING_NetjailTopology *topology, | ||
194 | unsigned int additional_connects, | ||
195 | unsigned int wait_for_connect); | ||
196 | |||
197 | |||
198 | /** | ||
199 | * Create command. | ||
200 | * | ||
201 | * @param label name for command. | ||
202 | * @param start_peer_label Label of the cmd to start a peer. | ||
203 | * @param create_label Label of the cmd which started the test system. | ||
204 | * @param num Number globally identifying the node. | ||
205 | * @param topology The topology for the test setup. | ||
206 | * @return command. | ||
207 | */ | ||
208 | struct GNUNET_TESTING_Command | ||
209 | GNUNET_TRANSPORT_cmd_send_simple (const char *label, | ||
210 | const char *start_peer_label, | ||
211 | const char *create_label, | ||
212 | uint32_t num, | ||
213 | struct GNUNET_TESTING_NetjailTopology * | ||
214 | topology); | ||
215 | |||
216 | /** | ||
217 | * | ||
218 | * | ||
219 | * @param label name for command. | ||
220 | * @param start_peer_label Label of the cmd to start a peer. | ||
221 | * @param create_label Label of the cmd which started the test system. | ||
222 | * @param num Number globally identifying the node. | ||
223 | * @param size The size of the test message to send. | ||
224 | * @param max_send The number of messages to send. | ||
225 | * @param topology The topology for the test setup. | ||
226 | * @return command. | ||
227 | */ | ||
228 | struct GNUNET_TESTING_Command | ||
229 | GNUNET_TRANSPORT_cmd_send_simple_performance (const char *label, | ||
230 | const char *start_peer_label, | ||
231 | const char *create_label, | ||
232 | uint32_t num, | ||
233 | int size, | ||
234 | int max_send, | ||
235 | struct GNUNET_TESTING_NetjailTopology * | ||
236 | topology); | ||
237 | |||
238 | |||
239 | /** | ||
240 | * Create command. | ||
241 | * | ||
242 | * @param label name for command. | ||
243 | * @param start_peer_label Label of the cmd to start a peer. | ||
244 | * @param create_label Label of the cmd to create the testing system. | ||
245 | * @param num Number globally identifying the node. | ||
246 | * @param node_n The number of the node in a network namespace. | ||
247 | * @param namespace_n The number of the network namespace. | ||
248 | * @param topology The topology for the test setup. | ||
249 | * @return command. | ||
250 | */ | ||
251 | struct GNUNET_TESTING_Command | ||
252 | GNUNET_TRANSPORT_cmd_backchannel_check (const char *label, | ||
253 | const char *start_peer_label, | ||
254 | const char *create_label, | ||
255 | uint32_t num, | ||
256 | unsigned int node_n, | ||
257 | unsigned int namespace_n, | ||
258 | struct GNUNET_TESTING_NetjailTopology * | ||
259 | topology); | ||
260 | |||
261 | |||
262 | |||
263 | /** | ||
264 | * Call #op on all simple traits. | ||
265 | */ | ||
266 | #define GNUNET_TRANSPORT_SIMPLE_TRAITS(op, prefix) \ | ||
267 | op (prefix, connect_peer_state, const struct ConnectPeersState) | ||
268 | |||
269 | GNUNET_TRANSPORT_SIMPLE_TRAITS (GNUNET_TESTING_MAKE_DECL_SIMPLE_TRAIT, GNUNET_TRANSPORT_TESTING) | ||
270 | |||
271 | |||
272 | #endif | ||
273 | /* end of transport_testing.h */ | ||
diff --git a/src/service/transport/transport-testing-communicator.c b/src/service/transport/transport-testing-communicator.c new file mode 100644 index 000000000..9ee70fe7b --- /dev/null +++ b/src/service/transport/transport-testing-communicator.c | |||
@@ -0,0 +1,1251 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2019 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/transport-testing-communicator.c | ||
23 | * @brief functions related to testing-tng | ||
24 | * @author Christian Grothoff | ||
25 | * @author Julius Bünger | ||
26 | */ | ||
27 | #include "platform.h" | ||
28 | #include "gnunet_util_lib.h" | ||
29 | #include "gnunet_protocols.h" | ||
30 | #include "gnunet_constants.h" | ||
31 | #include "transport-testing-communicator.h" | ||
32 | #include "gnunet_signatures.h" | ||
33 | #include "transport.h" | ||
34 | #include "gnunet_hello_uri_lib.h" | ||
35 | #include <inttypes.h> | ||
36 | |||
37 | #define LOG(kind, ...) GNUNET_log_from (kind, "transport-testing2", __VA_ARGS__) | ||
38 | |||
39 | struct MyClient | ||
40 | { | ||
41 | struct MyClient *prev; | ||
42 | struct MyClient *next; | ||
43 | /** | ||
44 | * @brief Handle to the client | ||
45 | */ | ||
46 | struct GNUNET_SERVICE_Client *client; | ||
47 | |||
48 | /** | ||
49 | * @brief Handle to the client | ||
50 | */ | ||
51 | struct GNUNET_MQ_Handle *c_mq; | ||
52 | |||
53 | /** | ||
54 | * The TCH | ||
55 | */ | ||
56 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc; | ||
57 | |||
58 | }; | ||
59 | |||
60 | /** | ||
61 | * @brief Queue of a communicator and some context | ||
62 | */ | ||
63 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue | ||
64 | { | ||
65 | /** | ||
66 | * @brief Handle to the TransportCommunicator | ||
67 | */ | ||
68 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h; | ||
69 | |||
70 | /** | ||
71 | * @brief Envelope to a message that requests the opening of the queue. | ||
72 | * | ||
73 | * If the client already requests queue(s), but the communicator is not yet | ||
74 | * connected, we cannot send the request to open the queue. Save it until the | ||
75 | * communicator becomes available and send it then. | ||
76 | */ | ||
77 | struct GNUNET_MQ_Envelope *open_queue_env; | ||
78 | |||
79 | /** | ||
80 | * @brief Peer ID of the peer on the other side of the queue | ||
81 | */ | ||
82 | struct GNUNET_PeerIdentity peer_id; | ||
83 | |||
84 | /** | ||
85 | * @brief Queue ID | ||
86 | */ | ||
87 | uint32_t qid; | ||
88 | |||
89 | /** | ||
90 | * @brief Current message id | ||
91 | */ | ||
92 | uint64_t mid; | ||
93 | |||
94 | /** | ||
95 | * An `enum GNUNET_NetworkType` in NBO. | ||
96 | */ | ||
97 | uint32_t nt; | ||
98 | |||
99 | /** | ||
100 | * Maximum transmission unit. UINT32_MAX for unlimited. | ||
101 | */ | ||
102 | uint32_t mtu; | ||
103 | |||
104 | /** | ||
105 | * Queue length. UINT64_MAX for unlimited. | ||
106 | */ | ||
107 | uint64_t q_len; | ||
108 | |||
109 | /** | ||
110 | * Queue prio | ||
111 | */ | ||
112 | uint32_t priority; | ||
113 | |||
114 | /** | ||
115 | * An `enum GNUNET_TRANSPORT_ConnectionStatus` in NBO. | ||
116 | */ | ||
117 | uint32_t cs; | ||
118 | |||
119 | /** | ||
120 | * @brief Next element inside a DLL | ||
121 | */ | ||
122 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue *next; | ||
123 | |||
124 | /** | ||
125 | * @brief Previous element inside a DLL | ||
126 | */ | ||
127 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue *prev; | ||
128 | }; | ||
129 | |||
130 | |||
131 | /** | ||
132 | * @brief Handle/Context to a single transmission | ||
133 | */ | ||
134 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorTransmission | ||
135 | { | ||
136 | }; | ||
137 | |||
138 | |||
139 | /** | ||
140 | * @brief Check whether incoming msg indicating available communicator is | ||
141 | * correct | ||
142 | * | ||
143 | * @param cls Closure | ||
144 | * @param msg Message struct | ||
145 | * | ||
146 | * @return GNUNET_YES in case message is correct | ||
147 | */ | ||
148 | static int | ||
149 | check_communicator_available ( | ||
150 | void *cls, | ||
151 | const struct GNUNET_TRANSPORT_CommunicatorAvailableMessage *msg) | ||
152 | { | ||
153 | uint16_t size; | ||
154 | |||
155 | size = ntohs (msg->header.size) - sizeof(*msg); | ||
156 | if (0 == size) | ||
157 | return GNUNET_OK; /* receive-only communicator */ | ||
158 | GNUNET_MQ_check_zero_termination (msg); | ||
159 | return GNUNET_OK; | ||
160 | } | ||
161 | |||
162 | |||
163 | /** | ||
164 | * @brief Handle new communicator | ||
165 | * | ||
166 | * Store characteristics of communicator, call respective client callback. | ||
167 | * | ||
168 | * @param cls Closure - communicator handle | ||
169 | * @param msg Message struct | ||
170 | */ | ||
171 | static void | ||
172 | handle_communicator_available ( | ||
173 | void *cls, | ||
174 | const struct GNUNET_TRANSPORT_CommunicatorAvailableMessage *msg) | ||
175 | { | ||
176 | struct MyClient *client = cls; | ||
177 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h = | ||
178 | client->tc; | ||
179 | uint16_t size; | ||
180 | tc_h->c_mq = client->c_mq; | ||
181 | |||
182 | size = ntohs (msg->header.size) - sizeof(*msg); | ||
183 | if (0 == size) | ||
184 | { | ||
185 | GNUNET_SERVICE_client_continue (client->client); | ||
186 | return; /* receive-only communicator */ | ||
187 | } | ||
188 | tc_h->c_characteristics = ntohl (msg->cc); | ||
189 | GNUNET_free (tc_h->c_addr_prefix); | ||
190 | tc_h->c_addr_prefix = GNUNET_strdup ((const char *) &msg[1]); | ||
191 | if (NULL != tc_h->communicator_available_cb) | ||
192 | { | ||
193 | LOG (GNUNET_ERROR_TYPE_DEBUG, "calling communicator_available_cb()\n"); | ||
194 | tc_h->communicator_available_cb (tc_h->cb_cls, | ||
195 | tc_h, | ||
196 | tc_h->c_characteristics, | ||
197 | tc_h->c_addr_prefix); | ||
198 | } | ||
199 | GNUNET_SERVICE_client_continue (client->client); | ||
200 | LOG (GNUNET_ERROR_TYPE_DEBUG, "finished communicator_available_cb()\n"); | ||
201 | |||
202 | } | ||
203 | |||
204 | |||
205 | /** | ||
206 | * Incoming message. Test message is well-formed. | ||
207 | * | ||
208 | * @param cls the client | ||
209 | * @param msg the send message that was sent | ||
210 | * @return #GNUNET_OK if message is well-formed | ||
211 | */ | ||
212 | static int | ||
213 | check_communicator_backchannel (void *cls, | ||
214 | const struct | ||
215 | GNUNET_TRANSPORT_CommunicatorBackchannel *msg) | ||
216 | { | ||
217 | // struct TransportClient *tc = cls; | ||
218 | |||
219 | // if (CT_COMMUNICATOR != tc->type) | ||
220 | // { | ||
221 | // GNUNET_break (0); | ||
222 | // return GNUNET_SYSERR; | ||
223 | // } | ||
224 | // GNUNET_MQ_check_boxed_message (msg); | ||
225 | return GNUNET_OK; | ||
226 | } | ||
227 | |||
228 | |||
229 | /** | ||
230 | * @brief Receive an incoming message. | ||
231 | * | ||
232 | * Pass the message to the client. | ||
233 | * | ||
234 | * @param cls Closure - communicator handle | ||
235 | * @param bc_msg Message | ||
236 | */ | ||
237 | static void | ||
238 | handle_communicator_backchannel (void *cls, | ||
239 | const struct | ||
240 | GNUNET_TRANSPORT_CommunicatorBackchannel * | ||
241 | bc_msg) | ||
242 | { | ||
243 | struct MyClient *client = cls; | ||
244 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h = | ||
245 | client->tc; | ||
246 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *other_tc_h; | ||
247 | struct GNUNET_MessageHeader *msg; | ||
248 | msg = (struct GNUNET_MessageHeader *) &bc_msg[1]; | ||
249 | uint16_t isize = ntohs (msg->size); | ||
250 | const char *target_communicator = ((const char *) msg) + isize; | ||
251 | struct GNUNET_TRANSPORT_CommunicatorBackchannelIncoming *cbi; | ||
252 | struct GNUNET_MQ_Envelope *env; | ||
253 | |||
254 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
255 | "Received backchannel message\n"); | ||
256 | if (tc_h->bc_enabled != GNUNET_YES) | ||
257 | { | ||
258 | GNUNET_SERVICE_client_continue (client->client); | ||
259 | return; | ||
260 | } | ||
261 | /* Find client providing this communicator */ | ||
262 | /* Finally, deliver backchannel message to communicator */ | ||
263 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
264 | "Delivering backchannel message of type %u to %s\n", | ||
265 | ntohs (msg->type), | ||
266 | target_communicator); | ||
267 | other_tc_h = tc_h->bc_cb (tc_h, msg, (struct | ||
268 | GNUNET_PeerIdentity*) &bc_msg->pid); | ||
269 | env = GNUNET_MQ_msg_extra ( | ||
270 | cbi, | ||
271 | isize, | ||
272 | GNUNET_MESSAGE_TYPE_TRANSPORT_COMMUNICATOR_BACKCHANNEL_INCOMING); | ||
273 | cbi->pid = tc_h->peer_id; | ||
274 | memcpy (&cbi[1], msg, isize); | ||
275 | |||
276 | |||
277 | GNUNET_MQ_send (other_tc_h->c_mq, env); | ||
278 | GNUNET_SERVICE_client_continue (client->client); | ||
279 | } | ||
280 | |||
281 | |||
282 | /** | ||
283 | * Address of our peer added. Test message is well-formed. | ||
284 | * | ||
285 | * @param cls the client | ||
286 | * @param msg the send message that was sent | ||
287 | * @return #GNUNET_OK if message is well-formed | ||
288 | */ | ||
289 | static int | ||
290 | check_add_address (void *cls, | ||
291 | const struct GNUNET_TRANSPORT_AddAddressMessage *msg) | ||
292 | { | ||
293 | // if (CT_COMMUNICATOR != tc->type) | ||
294 | // { | ||
295 | // GNUNET_break (0); | ||
296 | // return GNUNET_SYSERR; | ||
297 | // } | ||
298 | GNUNET_MQ_check_zero_termination (msg); | ||
299 | return GNUNET_OK; | ||
300 | } | ||
301 | |||
302 | |||
303 | /** | ||
304 | * @brief The communicator informs about an address. | ||
305 | * | ||
306 | * Store address and call client callback. | ||
307 | * | ||
308 | * @param cls Closure - communicator handle | ||
309 | * @param msg Message | ||
310 | */ | ||
311 | static void | ||
312 | handle_add_address (void *cls, | ||
313 | const struct GNUNET_TRANSPORT_AddAddressMessage *msg) | ||
314 | { | ||
315 | struct MyClient *client = cls; | ||
316 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h = | ||
317 | client->tc; | ||
318 | uint16_t size; | ||
319 | size = ntohs (msg->header.size) - sizeof(*msg); | ||
320 | LOG (GNUNET_ERROR_TYPE_DEBUG, "received add address cb %u\n", size); | ||
321 | if (0 == size) | ||
322 | return; /* receive-only communicator */ | ||
323 | LOG (GNUNET_ERROR_TYPE_DEBUG, "received add address cb %u\n", size); | ||
324 | GNUNET_free (tc_h->c_address); | ||
325 | tc_h->c_address = GNUNET_strdup ((const char *) &msg[1]); | ||
326 | if (NULL != tc_h->add_address_cb) | ||
327 | { | ||
328 | LOG (GNUNET_ERROR_TYPE_DEBUG, "calling add_address_cb()\n"); | ||
329 | tc_h->add_address_cb (tc_h->cb_cls, | ||
330 | tc_h, | ||
331 | tc_h->c_address, | ||
332 | GNUNET_TIME_relative_ntoh (msg->expiration), | ||
333 | msg->aid, | ||
334 | ntohl (msg->nt)); | ||
335 | } | ||
336 | GNUNET_SERVICE_client_continue (client->client); | ||
337 | } | ||
338 | |||
339 | |||
340 | /** | ||
341 | * Incoming message. Test message is well-formed. | ||
342 | * | ||
343 | * @param cls the client | ||
344 | * @param msg the send message that was sent | ||
345 | * @return #GNUNET_OK if message is well-formed | ||
346 | */ | ||
347 | static int | ||
348 | check_incoming_msg (void *cls, | ||
349 | const struct GNUNET_TRANSPORT_IncomingMessage *msg) | ||
350 | { | ||
351 | // struct TransportClient *tc = cls; | ||
352 | |||
353 | // if (CT_COMMUNICATOR != tc->type) | ||
354 | // { | ||
355 | // GNUNET_break (0); | ||
356 | // return GNUNET_SYSERR; | ||
357 | // } | ||
358 | GNUNET_MQ_check_boxed_message (msg); | ||
359 | return GNUNET_OK; | ||
360 | } | ||
361 | |||
362 | |||
363 | /** | ||
364 | * @brief Receive an incoming message. | ||
365 | * | ||
366 | * Pass the message to the client. | ||
367 | * | ||
368 | * @param cls Closure - communicator handle | ||
369 | * @param inc_msg Message | ||
370 | */ | ||
371 | static void | ||
372 | handle_incoming_msg (void *cls, | ||
373 | const struct GNUNET_TRANSPORT_IncomingMessage *inc_msg) | ||
374 | { | ||
375 | struct MyClient *client = cls; | ||
376 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h = | ||
377 | client->tc; | ||
378 | struct GNUNET_MessageHeader *msg; | ||
379 | msg = (struct GNUNET_MessageHeader *) &inc_msg[1]; | ||
380 | size_t payload_len = ntohs (msg->size) - sizeof (struct | ||
381 | GNUNET_MessageHeader); | ||
382 | if (NULL != tc_h->incoming_msg_cb) | ||
383 | { | ||
384 | tc_h->incoming_msg_cb (tc_h->cb_cls, | ||
385 | tc_h, | ||
386 | (char*) &msg[1], | ||
387 | payload_len); | ||
388 | } | ||
389 | else | ||
390 | { | ||
391 | LOG (GNUNET_ERROR_TYPE_WARNING, | ||
392 | "Incoming message from communicator but no handler!\n"); | ||
393 | } | ||
394 | if (GNUNET_YES == ntohl (inc_msg->fc_on)) | ||
395 | { | ||
396 | /* send ACK when done to communicator for flow control! */ | ||
397 | struct GNUNET_MQ_Envelope *env; | ||
398 | struct GNUNET_TRANSPORT_IncomingMessageAck *ack; | ||
399 | |||
400 | env = GNUNET_MQ_msg (ack, GNUNET_MESSAGE_TYPE_TRANSPORT_INCOMING_MSG_ACK); | ||
401 | GNUNET_assert (NULL != env); | ||
402 | ack->reserved = htonl (0); | ||
403 | ack->fc_id = inc_msg->fc_id; | ||
404 | ack->sender = inc_msg->sender; | ||
405 | GNUNET_MQ_send (tc_h->c_mq, env); | ||
406 | } | ||
407 | |||
408 | GNUNET_SERVICE_client_continue (client->client); | ||
409 | } | ||
410 | |||
411 | |||
412 | /** | ||
413 | * @brief Communicator informs that it tries to establish requested queue | ||
414 | * | ||
415 | * @param cls Closure - communicator handle | ||
416 | * @param msg Message | ||
417 | */ | ||
418 | static void | ||
419 | handle_queue_create_ok (void *cls, | ||
420 | const struct GNUNET_TRANSPORT_CreateQueueResponse *msg) | ||
421 | { | ||
422 | struct MyClient *client = cls; | ||
423 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h = | ||
424 | client->tc; | ||
425 | |||
426 | if (NULL != tc_h->queue_create_reply_cb) | ||
427 | { | ||
428 | tc_h->queue_create_reply_cb (tc_h->cb_cls, tc_h, GNUNET_YES); | ||
429 | } | ||
430 | GNUNET_SERVICE_client_continue (client->client); | ||
431 | } | ||
432 | |||
433 | |||
434 | /** | ||
435 | * @brief Communicator informs that it won't try establishing requested queue. | ||
436 | * | ||
437 | * It will not do so probably because the address is bougus (see comment to | ||
438 | * #GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE_FAIL) | ||
439 | * | ||
440 | * @param cls Closure - communicator handle | ||
441 | * @param msg Message | ||
442 | */ | ||
443 | static void | ||
444 | handle_queue_create_fail ( | ||
445 | void *cls, | ||
446 | const struct GNUNET_TRANSPORT_CreateQueueResponse *msg) | ||
447 | { | ||
448 | struct MyClient *client = cls; | ||
449 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h = | ||
450 | client->tc; | ||
451 | |||
452 | if (NULL != tc_h->queue_create_reply_cb) | ||
453 | { | ||
454 | tc_h->queue_create_reply_cb (tc_h->cb_cls, tc_h, GNUNET_NO); | ||
455 | } | ||
456 | GNUNET_SERVICE_client_continue (client->client); | ||
457 | } | ||
458 | |||
459 | |||
460 | /** | ||
461 | * New queue became available. Check message. | ||
462 | * | ||
463 | * @param cls the client | ||
464 | * @param aqm the send message that was sent | ||
465 | */ | ||
466 | static int | ||
467 | check_add_queue_message (void *cls, | ||
468 | const struct GNUNET_TRANSPORT_AddQueueMessage *aqm) | ||
469 | { | ||
470 | GNUNET_MQ_check_zero_termination (aqm); | ||
471 | return GNUNET_OK; | ||
472 | } | ||
473 | |||
474 | |||
475 | /** | ||
476 | * @brief Handle new queue | ||
477 | * | ||
478 | * Store context and call client callback. | ||
479 | * | ||
480 | * @param cls Closure - communicator handle | ||
481 | * @param msg Message struct | ||
482 | */ | ||
483 | static void | ||
484 | handle_add_queue_message (void *cls, | ||
485 | const struct GNUNET_TRANSPORT_AddQueueMessage *msg) | ||
486 | { | ||
487 | struct MyClient *client = cls; | ||
488 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h = | ||
489 | client->tc; | ||
490 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue *tc_queue; | ||
491 | |||
492 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
493 | "Got queue with ID %u\n", msg->qid); | ||
494 | for (tc_queue = tc_h->queue_head; NULL != tc_queue; tc_queue = tc_queue->next) | ||
495 | { | ||
496 | if (tc_queue->qid == msg->qid) | ||
497 | break; | ||
498 | } | ||
499 | if (NULL == tc_queue) | ||
500 | { | ||
501 | tc_queue = | ||
502 | GNUNET_new (struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue); | ||
503 | tc_queue->tc_h = tc_h; | ||
504 | tc_queue->qid = msg->qid; | ||
505 | tc_queue->peer_id = msg->receiver; | ||
506 | GNUNET_CONTAINER_DLL_insert (tc_h->queue_head, tc_h->queue_tail, tc_queue); | ||
507 | } | ||
508 | GNUNET_assert (tc_queue->qid == msg->qid); | ||
509 | GNUNET_assert (0 == GNUNET_memcmp (&tc_queue->peer_id, &msg->receiver)); | ||
510 | tc_queue->nt = msg->nt; | ||
511 | tc_queue->mtu = ntohl (msg->mtu); | ||
512 | tc_queue->cs = msg->cs; | ||
513 | tc_queue->priority = ntohl (msg->priority); | ||
514 | tc_queue->q_len = GNUNET_ntohll (msg->q_len); | ||
515 | if (NULL != tc_h->add_queue_cb) | ||
516 | { | ||
517 | tc_h->add_queue_cb (tc_h->cb_cls, tc_h, tc_queue, tc_queue->mtu); | ||
518 | } | ||
519 | GNUNET_SERVICE_client_continue (client->client); | ||
520 | } | ||
521 | |||
522 | |||
523 | /** | ||
524 | * @brief Handle new queue | ||
525 | * | ||
526 | * Store context and call client callback. | ||
527 | * | ||
528 | * @param cls Closure - communicator handle | ||
529 | * @param msg Message struct | ||
530 | */ | ||
531 | static void | ||
532 | handle_update_queue_message (void *cls, | ||
533 | const struct | ||
534 | GNUNET_TRANSPORT_UpdateQueueMessage *msg) | ||
535 | { | ||
536 | struct MyClient *client = cls; | ||
537 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h = | ||
538 | client->tc; | ||
539 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue *tc_queue; | ||
540 | |||
541 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
542 | "Received queue update message for %u with q_len %" PRIu64 "\n", | ||
543 | msg->qid, GNUNET_ntohll (msg->q_len)); | ||
544 | tc_queue = tc_h->queue_head; | ||
545 | if (NULL != tc_queue) | ||
546 | { | ||
547 | while (tc_queue->qid != msg->qid) | ||
548 | { | ||
549 | tc_queue = tc_queue->next; | ||
550 | } | ||
551 | } | ||
552 | if (NULL == tc_queue) | ||
553 | { | ||
554 | GNUNET_SERVICE_client_continue (client->client); | ||
555 | return; | ||
556 | } | ||
557 | GNUNET_assert (tc_queue->qid == msg->qid); | ||
558 | GNUNET_assert (0 == GNUNET_memcmp (&tc_queue->peer_id, &msg->receiver)); | ||
559 | tc_queue->nt = msg->nt; | ||
560 | tc_queue->mtu = ntohl (msg->mtu); | ||
561 | tc_queue->cs = msg->cs; | ||
562 | tc_queue->priority = ntohl (msg->priority); | ||
563 | // Uncomment this for alternativ 1 of backchannel functionality | ||
564 | tc_queue->q_len += GNUNET_ntohll (msg->q_len); | ||
565 | // Until here for alternativ 1 | ||
566 | // Uncomment this for alternativ 2 of backchannel functionality | ||
567 | // tc_queue->q_len = GNUNET_ntohll (msg->q_len); | ||
568 | // Until here for alternativ 2 | ||
569 | GNUNET_SERVICE_client_continue (client->client); | ||
570 | } | ||
571 | |||
572 | |||
573 | /** | ||
574 | * @brief Shut down the service | ||
575 | * | ||
576 | * @param cls Closure - Handle to the service | ||
577 | */ | ||
578 | static void | ||
579 | shutdown_service (void *cls) | ||
580 | { | ||
581 | struct GNUNET_SERVICE_Handle *h = cls; | ||
582 | |||
583 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
584 | "Shutting down service!\n"); | ||
585 | |||
586 | GNUNET_SERVICE_stop (h); | ||
587 | } | ||
588 | |||
589 | |||
590 | /** | ||
591 | * @brief Callback called when new Client (Communicator) connects | ||
592 | * | ||
593 | * @param cls Closure - TransporCommmunicator Handle | ||
594 | * @param client Client | ||
595 | * @param mq Messagequeue | ||
596 | * | ||
597 | * @return TransportCommunicator Handle | ||
598 | */ | ||
599 | static void * | ||
600 | connect_cb (void *cls, | ||
601 | struct GNUNET_SERVICE_Client *client, | ||
602 | struct GNUNET_MQ_Handle *mq) | ||
603 | { | ||
604 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h = cls; | ||
605 | struct MyClient *new_c; | ||
606 | |||
607 | LOG (GNUNET_ERROR_TYPE_DEBUG, "Client %p connected to %p.\n", | ||
608 | client, tc_h); | ||
609 | new_c = GNUNET_new (struct MyClient); | ||
610 | new_c->client = client; | ||
611 | new_c->c_mq = mq; | ||
612 | new_c->tc = tc_h; | ||
613 | GNUNET_CONTAINER_DLL_insert (tc_h->client_head, | ||
614 | tc_h->client_tail, | ||
615 | new_c); | ||
616 | |||
617 | if (NULL == tc_h->queue_head) | ||
618 | return new_c; | ||
619 | /* Iterate over queues. They are yet to be opened. Request opening. */ | ||
620 | for (struct | ||
621 | GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue *tc_queue_iter = | ||
622 | tc_h->queue_head; | ||
623 | NULL != tc_queue_iter; | ||
624 | tc_queue_iter = tc_queue_iter->next) | ||
625 | { | ||
626 | if (NULL == tc_queue_iter->open_queue_env) | ||
627 | continue; | ||
628 | /* Send the previously created mq envelope to request the creation of the | ||
629 | * queue. */ | ||
630 | GNUNET_MQ_send (tc_h->c_mq, | ||
631 | tc_queue_iter->open_queue_env); | ||
632 | tc_queue_iter->open_queue_env = NULL; | ||
633 | } | ||
634 | return new_c; | ||
635 | } | ||
636 | |||
637 | |||
638 | /** | ||
639 | * @brief Callback called when Client disconnects | ||
640 | * | ||
641 | * @param cls Closure - TransportCommunicator Handle | ||
642 | * @param client Client | ||
643 | * @param internal_cls TransporCommmunicator Handle | ||
644 | */ | ||
645 | static void | ||
646 | disconnect_cb (void *cls, | ||
647 | struct GNUNET_SERVICE_Client *client, | ||
648 | void *internal_cls) | ||
649 | { | ||
650 | struct MyClient *cl = cls; | ||
651 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h = cls; | ||
652 | |||
653 | for (cl = tc_h->client_head; NULL != cl; cl = cl->next) | ||
654 | { | ||
655 | if (cl->client != client) | ||
656 | continue; | ||
657 | GNUNET_CONTAINER_DLL_remove (tc_h->client_head, | ||
658 | tc_h->client_tail, | ||
659 | cl); | ||
660 | if (cl->c_mq == tc_h->c_mq) | ||
661 | tc_h->c_mq = NULL; | ||
662 | GNUNET_free (cl); | ||
663 | break; | ||
664 | } | ||
665 | LOG (GNUNET_ERROR_TYPE_DEBUG, "Client disconnected.\n"); | ||
666 | } | ||
667 | |||
668 | |||
669 | /** | ||
670 | * Message was transmitted. Process the request. | ||
671 | * | ||
672 | * @param cls the client | ||
673 | * @param sma the send message that was sent | ||
674 | */ | ||
675 | static void | ||
676 | handle_send_message_ack (void *cls, | ||
677 | const struct GNUNET_TRANSPORT_SendMessageToAck *sma) | ||
678 | { | ||
679 | struct MyClient *client = cls; | ||
680 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h = | ||
681 | client->tc; | ||
682 | static int mtr = 0; | ||
683 | mtr++; | ||
684 | if (tc_h->cont != NULL) | ||
685 | tc_h->cont (tc_h->cont_cls); | ||
686 | GNUNET_SERVICE_client_continue (client->client); | ||
687 | } | ||
688 | |||
689 | |||
690 | /** | ||
691 | * @brief Start the communicator part of the transport service | ||
692 | * | ||
693 | * @param communicator_available Callback to be called when a new communicator | ||
694 | * becomes available | ||
695 | * @param cfg Configuration | ||
696 | */ | ||
697 | static void | ||
698 | transport_communicator_start ( | ||
699 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h) | ||
700 | { | ||
701 | struct GNUNET_MQ_MessageHandler mh[] = { | ||
702 | GNUNET_MQ_hd_var_size (communicator_available, | ||
703 | GNUNET_MESSAGE_TYPE_TRANSPORT_NEW_COMMUNICATOR, | ||
704 | struct GNUNET_TRANSPORT_CommunicatorAvailableMessage, | ||
705 | tc_h), | ||
706 | GNUNET_MQ_hd_var_size (communicator_backchannel, | ||
707 | GNUNET_MESSAGE_TYPE_TRANSPORT_COMMUNICATOR_BACKCHANNEL, | ||
708 | struct GNUNET_TRANSPORT_CommunicatorBackchannel, | ||
709 | tc_h), | ||
710 | GNUNET_MQ_hd_var_size (add_address, | ||
711 | GNUNET_MESSAGE_TYPE_TRANSPORT_ADD_ADDRESS, | ||
712 | struct GNUNET_TRANSPORT_AddAddressMessage, | ||
713 | tc_h), | ||
714 | // GNUNET_MQ_hd_fixed_size (del_address, | ||
715 | // GNUNET_MESSAGE_TYPE_TRANSPORT_DEL_ADDRESS, | ||
716 | // struct GNUNET_TRANSPORT_DelAddressMessage, | ||
717 | // NULL), | ||
718 | GNUNET_MQ_hd_var_size (incoming_msg, | ||
719 | GNUNET_MESSAGE_TYPE_TRANSPORT_INCOMING_MSG, | ||
720 | struct GNUNET_TRANSPORT_IncomingMessage, | ||
721 | tc_h), | ||
722 | GNUNET_MQ_hd_fixed_size (queue_create_ok, | ||
723 | GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE_OK, | ||
724 | struct GNUNET_TRANSPORT_CreateQueueResponse, | ||
725 | tc_h), | ||
726 | GNUNET_MQ_hd_fixed_size (queue_create_fail, | ||
727 | GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE_FAIL, | ||
728 | struct GNUNET_TRANSPORT_CreateQueueResponse, | ||
729 | tc_h), | ||
730 | GNUNET_MQ_hd_var_size (add_queue_message, | ||
731 | GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_SETUP, | ||
732 | struct GNUNET_TRANSPORT_AddQueueMessage, | ||
733 | tc_h), | ||
734 | GNUNET_MQ_hd_fixed_size (update_queue_message, | ||
735 | GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_UPDATE, | ||
736 | struct GNUNET_TRANSPORT_UpdateQueueMessage, | ||
737 | tc_h), | ||
738 | // GNUNET_MQ_hd_fixed_size (del_queue_message, | ||
739 | // GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_TEARDOWN, | ||
740 | // struct GNUNET_TRANSPORT_DelQueueMessage, | ||
741 | // NULL), | ||
742 | GNUNET_MQ_hd_fixed_size (send_message_ack, | ||
743 | GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_MSG_ACK, | ||
744 | struct GNUNET_TRANSPORT_SendMessageToAck, | ||
745 | tc_h), | ||
746 | GNUNET_MQ_handler_end () | ||
747 | }; | ||
748 | |||
749 | |||
750 | tc_h->sh = GNUNET_SERVICE_start ("transport", | ||
751 | tc_h->cfg, | ||
752 | &connect_cb, | ||
753 | &disconnect_cb, | ||
754 | tc_h, | ||
755 | mh); | ||
756 | GNUNET_assert (NULL != tc_h->sh); | ||
757 | } | ||
758 | |||
759 | |||
760 | /** | ||
761 | * @brief Task run at shutdown to kill communicator and clean up | ||
762 | * | ||
763 | * @param cls Closure - Process of communicator | ||
764 | */ | ||
765 | static void | ||
766 | shutdown_process (struct GNUNET_OS_Process *proc) | ||
767 | { | ||
768 | if (0 != GNUNET_OS_process_kill (proc, SIGTERM)) | ||
769 | { | ||
770 | LOG (GNUNET_ERROR_TYPE_WARNING, | ||
771 | "Error shutting down process with SIGERM, trying SIGKILL\n"); | ||
772 | if (0 != GNUNET_OS_process_kill (proc, SIGKILL)) | ||
773 | { | ||
774 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
775 | "Error shutting down process with SIGERM and SIGKILL\n"); | ||
776 | } | ||
777 | } | ||
778 | GNUNET_break (GNUNET_OK == GNUNET_OS_process_wait (proc)); | ||
779 | GNUNET_OS_process_destroy (proc); | ||
780 | } | ||
781 | |||
782 | |||
783 | /** | ||
784 | * @brief Task run at shutdown to kill the statistics process | ||
785 | * | ||
786 | * @param cls Closure - Process of communicator | ||
787 | */ | ||
788 | static void | ||
789 | shutdown_statistics (void *cls) | ||
790 | { | ||
791 | struct GNUNET_OS_Process *proc = cls; | ||
792 | shutdown_process (proc); | ||
793 | } | ||
794 | |||
795 | |||
796 | /** | ||
797 | * @brief Task run at shutdown to kill the peerstore process | ||
798 | * | ||
799 | * @param cls Closure - Process of communicator | ||
800 | */ | ||
801 | static void | ||
802 | shutdown_peerstore (void *cls) | ||
803 | { | ||
804 | struct GNUNET_OS_Process *proc = cls; | ||
805 | shutdown_process (proc); | ||
806 | } | ||
807 | |||
808 | |||
809 | /** | ||
810 | * @brief Task run at shutdown to kill a communicator process | ||
811 | * | ||
812 | * @param cls Closure - Process of communicator | ||
813 | */ | ||
814 | static void | ||
815 | shutdown_communicator (void *cls) | ||
816 | { | ||
817 | struct GNUNET_OS_Process *proc = cls; | ||
818 | shutdown_process (proc); | ||
819 | } | ||
820 | |||
821 | |||
822 | /** | ||
823 | * @brief Start the communicator | ||
824 | * | ||
825 | * @param cfgname Name of the communicator | ||
826 | */ | ||
827 | static void | ||
828 | communicator_start ( | ||
829 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h, | ||
830 | const char *binary_name) | ||
831 | { | ||
832 | char *binary; | ||
833 | char *loprefix; | ||
834 | char *section_name; | ||
835 | |||
836 | LOG (GNUNET_ERROR_TYPE_DEBUG, "communicator_start\n"); | ||
837 | |||
838 | section_name = strchr (binary_name, '-'); | ||
839 | section_name++; | ||
840 | |||
841 | if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_string (tc_h->cfg, | ||
842 | section_name, | ||
843 | "PREFIX", | ||
844 | &loprefix)) | ||
845 | loprefix = GNUNET_strdup (""); | ||
846 | |||
847 | |||
848 | binary = GNUNET_OS_get_libexec_binary_path (binary_name); | ||
849 | tc_h->c_proc = GNUNET_OS_start_process_s (GNUNET_OS_INHERIT_STD_OUT_AND_ERR, | ||
850 | NULL, | ||
851 | loprefix, | ||
852 | binary, | ||
853 | binary_name, | ||
854 | "-c", | ||
855 | tc_h->cfg_filename, | ||
856 | NULL); | ||
857 | GNUNET_free (loprefix); | ||
858 | if (NULL == tc_h->c_proc) | ||
859 | { | ||
860 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to start communicator!"); | ||
861 | return; | ||
862 | } | ||
863 | LOG (GNUNET_ERROR_TYPE_INFO, "started communicator\n"); | ||
864 | GNUNET_free (binary); | ||
865 | } | ||
866 | |||
867 | |||
868 | /** | ||
869 | * @brief Task run at shutdown to kill communicator and clean up | ||
870 | * | ||
871 | * @param cls Closure - Process of communicator | ||
872 | */ | ||
873 | static void | ||
874 | shutdown_nat (void *cls) | ||
875 | { | ||
876 | struct GNUNET_OS_Process *proc = cls; | ||
877 | shutdown_process (proc); | ||
878 | } | ||
879 | |||
880 | |||
881 | /** | ||
882 | * @brief Task run at shutdown to kill the resolver process | ||
883 | * | ||
884 | * @param cls Closure - Process of communicator | ||
885 | */ | ||
886 | static void | ||
887 | shutdown_resolver (void *cls) | ||
888 | { | ||
889 | struct GNUNET_OS_Process *proc = cls; | ||
890 | shutdown_process (proc); | ||
891 | } | ||
892 | |||
893 | |||
894 | /** | ||
895 | * @brief Start Resolver | ||
896 | * | ||
897 | */ | ||
898 | static void | ||
899 | resolver_start (struct | ||
900 | GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h) | ||
901 | { | ||
902 | char *binary; | ||
903 | |||
904 | LOG (GNUNET_ERROR_TYPE_DEBUG, "resolver_start\n"); | ||
905 | binary = GNUNET_OS_get_libexec_binary_path ("gnunet-service-resolver"); | ||
906 | tc_h->resolver_proc = GNUNET_OS_start_process ( | ||
907 | GNUNET_OS_INHERIT_STD_OUT_AND_ERR | ||
908 | | GNUNET_OS_USE_PIPE_CONTROL, | ||
909 | NULL, | ||
910 | NULL, | ||
911 | NULL, | ||
912 | binary, | ||
913 | "gnunet-service-resolver", | ||
914 | "-c", | ||
915 | tc_h->cfg_filename, | ||
916 | NULL); | ||
917 | if (NULL == tc_h->resolver_proc) | ||
918 | { | ||
919 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to start resolver service!"); | ||
920 | return; | ||
921 | } | ||
922 | LOG (GNUNET_ERROR_TYPE_INFO, "started resolver service\n"); | ||
923 | GNUNET_free (binary); | ||
924 | |||
925 | } | ||
926 | |||
927 | |||
928 | /** | ||
929 | * @brief Start Statistics | ||
930 | * | ||
931 | */ | ||
932 | static void | ||
933 | statistics_start ( | ||
934 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h) | ||
935 | { | ||
936 | char *binary; | ||
937 | |||
938 | binary = GNUNET_OS_get_libexec_binary_path ("gnunet-service-statistics"); | ||
939 | tc_h->stat_proc = GNUNET_OS_start_process (GNUNET_OS_INHERIT_STD_OUT_AND_ERR, | ||
940 | NULL, | ||
941 | NULL, | ||
942 | NULL, | ||
943 | binary, | ||
944 | "gnunet-service-statistics", | ||
945 | "-c", | ||
946 | tc_h->cfg_filename, | ||
947 | NULL); | ||
948 | if (NULL == tc_h->stat_proc) | ||
949 | { | ||
950 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to start Statistics!"); | ||
951 | return; | ||
952 | } | ||
953 | LOG (GNUNET_ERROR_TYPE_INFO, "started Statistics\n"); | ||
954 | GNUNET_free (binary); | ||
955 | } | ||
956 | |||
957 | |||
958 | /** | ||
959 | * @brief Start Peerstore | ||
960 | * | ||
961 | */ | ||
962 | static void | ||
963 | peerstore_start ( | ||
964 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h) | ||
965 | { | ||
966 | char *binary; | ||
967 | |||
968 | binary = GNUNET_OS_get_libexec_binary_path ("gnunet-service-peerstore"); | ||
969 | tc_h->ps_proc = GNUNET_OS_start_process (GNUNET_OS_INHERIT_STD_OUT_AND_ERR, | ||
970 | NULL, | ||
971 | NULL, | ||
972 | NULL, | ||
973 | binary, | ||
974 | "gnunet-service-peerstore", | ||
975 | "-c", | ||
976 | tc_h->cfg_filename, | ||
977 | NULL); | ||
978 | if (NULL == tc_h->ps_proc) | ||
979 | { | ||
980 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to start Peerstore!"); | ||
981 | return; | ||
982 | } | ||
983 | LOG (GNUNET_ERROR_TYPE_INFO, "started Peerstore\n"); | ||
984 | GNUNET_free (binary); | ||
985 | } | ||
986 | |||
987 | |||
988 | /** | ||
989 | * @brief Start NAT | ||
990 | * | ||
991 | */ | ||
992 | static void | ||
993 | nat_start ( | ||
994 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h) | ||
995 | { | ||
996 | char *binary; | ||
997 | |||
998 | LOG (GNUNET_ERROR_TYPE_DEBUG, "nat_start\n"); | ||
999 | binary = GNUNET_OS_get_libexec_binary_path ("gnunet-service-nat"); | ||
1000 | tc_h->nat_proc = GNUNET_OS_start_process (GNUNET_OS_INHERIT_STD_OUT_AND_ERR | ||
1001 | | GNUNET_OS_USE_PIPE_CONTROL, | ||
1002 | NULL, | ||
1003 | NULL, | ||
1004 | NULL, | ||
1005 | binary, | ||
1006 | "gnunet-service-nat", | ||
1007 | "-c", | ||
1008 | tc_h->cfg_filename, | ||
1009 | NULL); | ||
1010 | if (NULL == tc_h->nat_proc) | ||
1011 | { | ||
1012 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to start NAT!"); | ||
1013 | return; | ||
1014 | } | ||
1015 | LOG (GNUNET_ERROR_TYPE_INFO, "started NAT\n"); | ||
1016 | GNUNET_free (binary); | ||
1017 | } | ||
1018 | |||
1019 | |||
1020 | /** | ||
1021 | * @brief Start communicator part of transport service and communicator | ||
1022 | * | ||
1023 | * @param service_name Name of the service | ||
1024 | * @param cfg Configuration handle | ||
1025 | * @param communicator_available_cb Callback that is called when a new | ||
1026 | * @param add_address_cb Callback that is called when a new | ||
1027 | * communicator becomes available | ||
1028 | * @param cb_cls Closure to @a communicator_available_cb and @a | ||
1029 | * | ||
1030 | * @return Handle to the communicator duo | ||
1031 | */ | ||
1032 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle * | ||
1033 | GNUNET_TRANSPORT_TESTING_transport_communicator_service_start ( | ||
1034 | const char *service_name, | ||
1035 | const char *binary_name, | ||
1036 | const char *cfg_filename, | ||
1037 | const struct GNUNET_PeerIdentity *peer_id, | ||
1038 | GNUNET_TRANSPORT_TESTING_CommunicatorAvailableCallback | ||
1039 | communicator_available_cb, | ||
1040 | GNUNET_TRANSPORT_TESTING_AddAddressCallback add_address_cb, | ||
1041 | GNUNET_TRANSPORT_TESTING_QueueCreateReplyCallback queue_create_reply_cb, | ||
1042 | GNUNET_TRANSPORT_TESTING_AddQueueCallback add_queue_cb, | ||
1043 | GNUNET_TRANSPORT_TESTING_IncomingMessageCallback incoming_message_cb, | ||
1044 | GNUNET_TRANSPORT_TESTING_BackchannelCallback bc_cb, | ||
1045 | void *cb_cls) | ||
1046 | { | ||
1047 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h; | ||
1048 | |||
1049 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
1050 | "Starting new transport/communicator combo with config %s\n", | ||
1051 | cfg_filename); | ||
1052 | tc_h = | ||
1053 | GNUNET_new (struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle); | ||
1054 | tc_h->cfg_filename = GNUNET_strdup (cfg_filename); | ||
1055 | tc_h->cfg = GNUNET_CONFIGURATION_create (); | ||
1056 | if ((GNUNET_SYSERR == GNUNET_CONFIGURATION_load (tc_h->cfg, cfg_filename))) | ||
1057 | { | ||
1058 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
1059 | _ ("Malformed configuration file `%s', exit ...\n"), | ||
1060 | cfg_filename); | ||
1061 | GNUNET_free (tc_h->cfg_filename); | ||
1062 | GNUNET_CONFIGURATION_destroy (tc_h->cfg); | ||
1063 | GNUNET_free (tc_h); | ||
1064 | return NULL; | ||
1065 | } | ||
1066 | tc_h->bc_enabled = GNUNET_CONFIGURATION_get_value_yesno (tc_h->cfg, | ||
1067 | "communicator-test", | ||
1068 | "BACKCHANNEL_ENABLED"); | ||
1069 | tc_h->communicator_available_cb = communicator_available_cb; | ||
1070 | tc_h->add_address_cb = add_address_cb; | ||
1071 | tc_h->queue_create_reply_cb = queue_create_reply_cb; | ||
1072 | tc_h->add_queue_cb = add_queue_cb; | ||
1073 | tc_h->incoming_msg_cb = incoming_message_cb; | ||
1074 | tc_h->bc_cb = bc_cb; | ||
1075 | tc_h->peer_id = *peer_id; | ||
1076 | tc_h->cb_cls = cb_cls; | ||
1077 | |||
1078 | /* Start communicator part of service */ | ||
1079 | transport_communicator_start (tc_h); | ||
1080 | /* Start NAT */ | ||
1081 | nat_start (tc_h); | ||
1082 | /* Start resolver service */ | ||
1083 | resolver_start (tc_h); | ||
1084 | /* Start peerstore service */ | ||
1085 | peerstore_start (tc_h); | ||
1086 | /* Start statistic service */ | ||
1087 | statistics_start (tc_h); | ||
1088 | /* Schedule start communicator */ | ||
1089 | communicator_start (tc_h, | ||
1090 | binary_name); | ||
1091 | return tc_h; | ||
1092 | } | ||
1093 | |||
1094 | |||
1095 | void | ||
1096 | GNUNET_TRANSPORT_TESTING_transport_communicator_service_stop ( | ||
1097 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h) | ||
1098 | { | ||
1099 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue *queue; | ||
1100 | shutdown_communicator (tc_h->c_proc); | ||
1101 | shutdown_service (tc_h->sh); | ||
1102 | shutdown_nat (tc_h->nat_proc); | ||
1103 | shutdown_resolver (tc_h->resolver_proc); | ||
1104 | shutdown_peerstore (tc_h->ps_proc); | ||
1105 | shutdown_statistics (tc_h->stat_proc); | ||
1106 | GNUNET_CONFIGURATION_destroy (tc_h->cfg); | ||
1107 | while (NULL != (queue = tc_h->queue_head)) | ||
1108 | { | ||
1109 | GNUNET_CONTAINER_DLL_remove (tc_h->queue_head, tc_h->queue_tail, queue); | ||
1110 | GNUNET_free (queue); | ||
1111 | } | ||
1112 | GNUNET_free (tc_h->c_address); | ||
1113 | GNUNET_free (tc_h->cfg_filename); | ||
1114 | GNUNET_free (tc_h->c_addr_prefix); | ||
1115 | GNUNET_free (tc_h); | ||
1116 | } | ||
1117 | |||
1118 | |||
1119 | /** | ||
1120 | * @brief Instruct communicator to open a queue | ||
1121 | * | ||
1122 | * @param tc_h Handle to communicator which shall open queue | ||
1123 | * @param peer_id Towards which peer | ||
1124 | * @param address For which address | ||
1125 | */ | ||
1126 | void | ||
1127 | GNUNET_TRANSPORT_TESTING_transport_communicator_open_queue ( | ||
1128 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h, | ||
1129 | const struct GNUNET_PeerIdentity *peer_id, | ||
1130 | const char *address) | ||
1131 | { | ||
1132 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue *tc_queue; | ||
1133 | static uint32_t idgen; | ||
1134 | char *prefix; | ||
1135 | struct GNUNET_TRANSPORT_CreateQueue *msg; | ||
1136 | struct GNUNET_MQ_Envelope *env; | ||
1137 | size_t alen; | ||
1138 | |||
1139 | tc_queue = | ||
1140 | GNUNET_new (struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue); | ||
1141 | tc_queue->tc_h = tc_h; | ||
1142 | prefix = GNUNET_HELLO_address_to_prefix (address); | ||
1143 | if (NULL == prefix) | ||
1144 | { | ||
1145 | GNUNET_break (0); /* We got an invalid address!? */ | ||
1146 | GNUNET_free (tc_queue); | ||
1147 | return; | ||
1148 | } | ||
1149 | GNUNET_free (prefix); | ||
1150 | alen = strlen (address) + 1; | ||
1151 | env = | ||
1152 | GNUNET_MQ_msg_extra (msg, alen, GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE); | ||
1153 | msg->request_id = htonl (idgen++); | ||
1154 | tc_queue->qid = msg->request_id; | ||
1155 | msg->receiver = *peer_id; | ||
1156 | tc_queue->peer_id = *peer_id; | ||
1157 | memcpy (&msg[1], address, alen); | ||
1158 | if (NULL != tc_h->c_mq) | ||
1159 | { | ||
1160 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
1161 | "Sending queue create immediately\n"); | ||
1162 | GNUNET_MQ_send (tc_h->c_mq, env); | ||
1163 | } | ||
1164 | else | ||
1165 | { | ||
1166 | tc_queue->open_queue_env = env; | ||
1167 | } | ||
1168 | GNUNET_CONTAINER_DLL_insert (tc_h->queue_head, tc_h->queue_tail, tc_queue); | ||
1169 | } | ||
1170 | |||
1171 | |||
1172 | void | ||
1173 | GNUNET_TRANSPORT_TESTING_transport_communicator_send | ||
1174 | (struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h, | ||
1175 | GNUNET_SCHEDULER_TaskCallback cont, | ||
1176 | void *cont_cls, | ||
1177 | const void *payload, | ||
1178 | size_t payload_size) | ||
1179 | { | ||
1180 | struct GNUNET_MessageHeader *mh; | ||
1181 | struct GNUNET_TRANSPORT_SendMessageTo *msg; | ||
1182 | struct GNUNET_MQ_Envelope *env; | ||
1183 | size_t inbox_size; | ||
1184 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue *tc_queue; | ||
1185 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue *tc_queue_tmp; | ||
1186 | static struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue *last_queue; | ||
1187 | tc_queue = NULL; | ||
1188 | |||
1189 | for (tc_queue_tmp = tc_h->queue_head; | ||
1190 | NULL != tc_queue_tmp; | ||
1191 | tc_queue_tmp = tc_queue_tmp->next) | ||
1192 | { | ||
1193 | if (tc_queue_tmp->q_len <= 0) | ||
1194 | continue; | ||
1195 | if (NULL == tc_queue) | ||
1196 | { | ||
1197 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
1198 | "Selecting queue with prio %u, len %" PRIu64 " and MTU %u\n", | ||
1199 | tc_queue_tmp->priority, | ||
1200 | tc_queue_tmp->q_len, | ||
1201 | tc_queue_tmp->mtu); | ||
1202 | tc_queue = tc_queue_tmp; | ||
1203 | continue; | ||
1204 | } | ||
1205 | if (tc_queue->priority < tc_queue_tmp->priority) | ||
1206 | { | ||
1207 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
1208 | "Selecting queue with prio %u, len %" PRIu64 " and MTU %u\n", | ||
1209 | tc_queue_tmp->priority, | ||
1210 | tc_queue_tmp->q_len, | ||
1211 | tc_queue_tmp->mtu); | ||
1212 | tc_queue = tc_queue_tmp; | ||
1213 | } | ||
1214 | } | ||
1215 | if (last_queue != tc_queue) | ||
1216 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1217 | "Selected sending queue changed to %u with length %lu and MTU %u\n", | ||
1218 | ntohl (tc_queue->qid), (unsigned long) tc_queue->q_len, tc_queue->mtu); | ||
1219 | GNUNET_assert (NULL != tc_queue); | ||
1220 | last_queue = tc_queue; | ||
1221 | // Uncomment this for alternativ 1 of backchannel functionality | ||
1222 | if (tc_queue->q_len != GNUNET_TRANSPORT_QUEUE_LENGTH_UNLIMITED) | ||
1223 | tc_queue->q_len--; | ||
1224 | // Until here for alternativ 1 | ||
1225 | static int msg_count = 0; | ||
1226 | msg_count++; | ||
1227 | if (msg_count % 100 == 0) | ||
1228 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
1229 | "Sending %u-th (%lu-th for queue) message on queue %u\n", | ||
1230 | msg_count, (unsigned long) tc_queue->mid, ntohl (tc_queue->qid)); | ||
1231 | inbox_size = sizeof (struct GNUNET_MessageHeader) + payload_size; | ||
1232 | env = GNUNET_MQ_msg_extra (msg, | ||
1233 | inbox_size, | ||
1234 | GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_MSG); | ||
1235 | GNUNET_assert (NULL != env); | ||
1236 | msg->qid = tc_queue->qid; | ||
1237 | msg->mid = tc_queue->mid++; | ||
1238 | msg->receiver = tc_queue->peer_id; | ||
1239 | mh = (struct GNUNET_MessageHeader *) &msg[1]; | ||
1240 | mh->size = htons (inbox_size); | ||
1241 | mh->type = GNUNET_MESSAGE_TYPE_DUMMY; | ||
1242 | memcpy (&mh[1], | ||
1243 | payload, | ||
1244 | payload_size); | ||
1245 | if (NULL != cont) | ||
1246 | GNUNET_MQ_notify_sent (env, | ||
1247 | cont, | ||
1248 | cont_cls); | ||
1249 | GNUNET_MQ_send (tc_queue->tc_h->c_mq, | ||
1250 | env); | ||
1251 | } | ||
diff --git a/src/service/transport/transport-testing-communicator.h b/src/service/transport/transport-testing-communicator.h new file mode 100644 index 000000000..7460aab8e --- /dev/null +++ b/src/service/transport/transport-testing-communicator.h | |||
@@ -0,0 +1,370 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2019 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/transport-testing-communicator.h | ||
23 | * @brief functions and structures related to testing-tng | ||
24 | * @author Christian Grothoff | ||
25 | * @author Julius Bünger | ||
26 | */ | ||
27 | #include "platform.h" | ||
28 | #include "gnunet_util_lib.h" | ||
29 | #include "gnunet_transport_communication_service.h" | ||
30 | #include "transport.h" | ||
31 | |||
32 | /** | ||
33 | * @brief Queue of a communicator and some context | ||
34 | */ | ||
35 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue; | ||
36 | |||
37 | |||
38 | /** | ||
39 | * @brief Handle/Context to a single transmission | ||
40 | */ | ||
41 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorTransmission; | ||
42 | |||
43 | /** | ||
44 | * @brief Function signature for callbacks that are called when new | ||
45 | * backchannel message arrived | ||
46 | * | ||
47 | * @param cls Closure | ||
48 | * @param msg Backchannel message | ||
49 | * @param pid Target peer | ||
50 | */ | ||
51 | typedef struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle * | ||
52 | (*GNUNET_TRANSPORT_TESTING_BackchannelCallback)(void *cls, | ||
53 | struct GNUNET_MessageHeader *msg, | ||
54 | struct GNUNET_PeerIdentity *pid); | ||
55 | |||
56 | |||
57 | /** | ||
58 | * @brief Function signature for callbacks that are called when new | ||
59 | * communicators become available | ||
60 | * | ||
61 | * @param cls Closure | ||
62 | * @param tc_h Communicator handle | ||
63 | * @param cc Characteristics of communicator | ||
64 | * @param address_prefix Prefix of the address | ||
65 | */ | ||
66 | typedef void | ||
67 | (*GNUNET_TRANSPORT_TESTING_CommunicatorAvailableCallback)(void *cls, | ||
68 | struct | ||
69 | GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle | ||
70 | *tc_h, | ||
71 | enum | ||
72 | GNUNET_TRANSPORT_CommunicatorCharacteristics | ||
73 | cc, | ||
74 | char *address_prefix); | ||
75 | |||
76 | |||
77 | /** | ||
78 | * @brief Receive information about the address of a communicator. | ||
79 | * | ||
80 | * @param cls Closure | ||
81 | * @param tc_h Communicator handle | ||
82 | * @param address Address represented as string | ||
83 | * @param expiration Expiration | ||
84 | * @param aid Aid | ||
85 | * @param nt Network Type | ||
86 | */ | ||
87 | typedef void | ||
88 | (*GNUNET_TRANSPORT_TESTING_AddAddressCallback)(void *cls, | ||
89 | struct | ||
90 | GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle | ||
91 | *tc_h, | ||
92 | const char *address, | ||
93 | struct GNUNET_TIME_Relative | ||
94 | expiration, | ||
95 | uint32_t aid, | ||
96 | enum GNUNET_NetworkType nt); | ||
97 | |||
98 | |||
99 | /** | ||
100 | * @brief Get informed about the success of a queue request. | ||
101 | * | ||
102 | * @param cls Closure | ||
103 | * @param tc_h Communicator handle | ||
104 | * @param will_try #GNUNET_YES if communicator will try to create queue | ||
105 | */ | ||
106 | typedef void | ||
107 | (*GNUNET_TRANSPORT_TESTING_QueueCreateReplyCallback)(void *cls, | ||
108 | struct | ||
109 | GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle | ||
110 | *tc_h, | ||
111 | int will_try); | ||
112 | |||
113 | |||
114 | /** | ||
115 | * @brief Handle opening of queue | ||
116 | * | ||
117 | * @param cls Closure | ||
118 | * @param tc_h Communicator handle | ||
119 | * @param tc_queue Handle to newly opened queue | ||
120 | */ | ||
121 | typedef void | ||
122 | (*GNUNET_TRANSPORT_TESTING_AddQueueCallback)(void *cls, | ||
123 | struct | ||
124 | GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle | ||
125 | *tc_h, | ||
126 | struct | ||
127 | GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue | ||
128 | *tc_queue, | ||
129 | size_t mtu); | ||
130 | |||
131 | |||
132 | /** | ||
133 | * @brief Handle an incoming message | ||
134 | * | ||
135 | * @param cls Closure | ||
136 | * @param tc_h Handle to the receiving communicator | ||
137 | * @param msg Received message | ||
138 | */ | ||
139 | typedef void | ||
140 | (*GNUNET_TRANSPORT_TESTING_IncomingMessageCallback)(void *cls, | ||
141 | struct | ||
142 | GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle | ||
143 | *tc_h, | ||
144 | const char*payload, | ||
145 | size_t payload_len); | ||
146 | |||
147 | /** | ||
148 | * @brief Handle to a transport communicator | ||
149 | */ | ||
150 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle | ||
151 | { | ||
152 | /** | ||
153 | * Clients | ||
154 | */ | ||
155 | struct MyClient *client_head; | ||
156 | struct MyClient *client_tail; | ||
157 | |||
158 | /** | ||
159 | * @brief Handle to the client | ||
160 | */ | ||
161 | struct GNUNET_MQ_Handle *c_mq; | ||
162 | |||
163 | /** | ||
164 | * @brief Handle to the configuration | ||
165 | */ | ||
166 | struct GNUNET_CONFIGURATION_Handle *cfg; | ||
167 | |||
168 | /** | ||
169 | * @brief File name of configuration file | ||
170 | */ | ||
171 | char *cfg_filename; | ||
172 | |||
173 | struct GNUNET_PeerIdentity peer_id; | ||
174 | |||
175 | /** | ||
176 | * @brief Handle to the transport service | ||
177 | */ | ||
178 | struct GNUNET_SERVICE_Handle *tsh; | ||
179 | |||
180 | /** | ||
181 | * @brief Task that will be run on shutdown to stop and clean transport | ||
182 | * service | ||
183 | */ | ||
184 | struct GNUNET_SCHEDULER_Task *ts_shutdown_task; | ||
185 | |||
186 | |||
187 | /** | ||
188 | * @brief Process of the communicator | ||
189 | */ | ||
190 | struct GNUNET_OS_Process *c_proc; | ||
191 | |||
192 | /** | ||
193 | * NAT process | ||
194 | */ | ||
195 | struct GNUNET_OS_Process *nat_proc; | ||
196 | |||
197 | /** | ||
198 | * resolver service process | ||
199 | */ | ||
200 | struct GNUNET_OS_Process *resolver_proc; | ||
201 | |||
202 | /** | ||
203 | * statistics service process | ||
204 | */ | ||
205 | struct GNUNET_OS_Process *stat_proc; | ||
206 | |||
207 | /** | ||
208 | * peerstore service process | ||
209 | */ | ||
210 | struct GNUNET_OS_Process *ps_proc; | ||
211 | |||
212 | /** | ||
213 | * @brief Task that will be run on shutdown to stop and clean communicator | ||
214 | */ | ||
215 | struct GNUNET_SCHEDULER_Task *c_shutdown_task; | ||
216 | |||
217 | /** | ||
218 | * @brief Characteristics of the communicator | ||
219 | */ | ||
220 | enum GNUNET_TRANSPORT_CommunicatorCharacteristics c_characteristics; | ||
221 | |||
222 | /** | ||
223 | * @brief Specifies supported addresses | ||
224 | */ | ||
225 | char *c_addr_prefix; | ||
226 | |||
227 | /** | ||
228 | * @brief Specifies supported addresses | ||
229 | */ | ||
230 | char *c_address; | ||
231 | |||
232 | /** | ||
233 | * @brief Head of the DLL of queues associated with this communicator | ||
234 | */ | ||
235 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue *queue_head; | ||
236 | |||
237 | /** | ||
238 | * @brief Tail of the DLL of queues associated with this communicator | ||
239 | */ | ||
240 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue *queue_tail; | ||
241 | |||
242 | /* Callbacks + Closures */ | ||
243 | /** | ||
244 | * @brief Callback called when a new communicator connects | ||
245 | */ | ||
246 | GNUNET_TRANSPORT_TESTING_CommunicatorAvailableCallback | ||
247 | communicator_available_cb; | ||
248 | |||
249 | /** | ||
250 | * @brief Callback called when a new communicator connects | ||
251 | */ | ||
252 | GNUNET_TRANSPORT_TESTING_AddAddressCallback add_address_cb; | ||
253 | |||
254 | /** | ||
255 | * @brief Callback called when a new communicator connects | ||
256 | */ | ||
257 | GNUNET_TRANSPORT_TESTING_QueueCreateReplyCallback queue_create_reply_cb; | ||
258 | |||
259 | /** | ||
260 | * @brief Callback called when a new communicator connects | ||
261 | */ | ||
262 | GNUNET_TRANSPORT_TESTING_AddQueueCallback add_queue_cb; | ||
263 | |||
264 | /** | ||
265 | * @brief Callback called when a new communicator connects | ||
266 | */ | ||
267 | GNUNET_TRANSPORT_TESTING_IncomingMessageCallback incoming_msg_cb; | ||
268 | |||
269 | /** | ||
270 | * @brief Backchannel callback | ||
271 | */ | ||
272 | GNUNET_TRANSPORT_TESTING_BackchannelCallback bc_cb; | ||
273 | |||
274 | /** | ||
275 | * Our service handle | ||
276 | */ | ||
277 | struct GNUNET_SERVICE_Handle *sh; | ||
278 | |||
279 | /** | ||
280 | * @brief Closure to the callback | ||
281 | */ | ||
282 | void *cb_cls; | ||
283 | |||
284 | /** | ||
285 | * Callback to call when message ack received. | ||
286 | */ | ||
287 | GNUNET_SCHEDULER_TaskCallback cont; | ||
288 | |||
289 | /** | ||
290 | * Closure for cont | ||
291 | */ | ||
292 | void *cont_cls; | ||
293 | |||
294 | /** | ||
295 | * Backchannel supported | ||
296 | */ | ||
297 | int bc_enabled; | ||
298 | }; | ||
299 | |||
300 | /** | ||
301 | * @brief Start communicator part of transport service and communicator | ||
302 | * | ||
303 | * @param service_name Name of the service | ||
304 | * @param cfg Configuration handle | ||
305 | * @param communicator_available Callback that is called when a new | ||
306 | * communicator becomes available | ||
307 | * @param add_address_cb Callback handling new addresses | ||
308 | * @param queue_create_reply_cb Callback handling success of queue requests | ||
309 | * @param add_queue_cb Callback handling freshly created queues | ||
310 | * @param incoming_message_cb Callback handling incoming messages | ||
311 | * @param cb_cls Closure to @p communicator_available | ||
312 | * | ||
313 | * @return Handle to the communicator duo | ||
314 | */ | ||
315 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle * | ||
316 | GNUNET_TRANSPORT_TESTING_transport_communicator_service_start ( | ||
317 | const char *service_name, | ||
318 | const char *binary_name, | ||
319 | const char *cfg_filename, | ||
320 | const struct GNUNET_PeerIdentity *peer_id, | ||
321 | GNUNET_TRANSPORT_TESTING_CommunicatorAvailableCallback | ||
322 | communicator_available_cb, | ||
323 | GNUNET_TRANSPORT_TESTING_AddAddressCallback add_address_cb, | ||
324 | GNUNET_TRANSPORT_TESTING_QueueCreateReplyCallback queue_create_reply_cb, | ||
325 | GNUNET_TRANSPORT_TESTING_AddQueueCallback add_queue_cb, | ||
326 | GNUNET_TRANSPORT_TESTING_IncomingMessageCallback incoming_message_cb, | ||
327 | GNUNET_TRANSPORT_TESTING_BackchannelCallback bc_cb, | ||
328 | void *cb_cls); | ||
329 | |||
330 | |||
331 | void | ||
332 | GNUNET_TRANSPORT_TESTING_transport_communicator_service_stop ( | ||
333 | struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h); | ||
334 | |||
335 | |||
336 | /** | ||
337 | * @brief Instruct communicator to open a queue | ||
338 | * | ||
339 | * @param tc_h Handle to communicator which shall open queue | ||
340 | * @param peer_id Towards which peer | ||
341 | * @param address For which address | ||
342 | */ | ||
343 | void | ||
344 | GNUNET_TRANSPORT_TESTING_transport_communicator_open_queue (struct | ||
345 | GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle | ||
346 | *tc_h, | ||
347 | const struct | ||
348 | GNUNET_PeerIdentity | ||
349 | *peer_id, | ||
350 | const char *address); | ||
351 | |||
352 | |||
353 | /** | ||
354 | * @brief Instruct communicator to send data | ||
355 | * | ||
356 | * @param tc_queue The queue to use for sending | ||
357 | * @param cont function to call when done sending | ||
358 | * @param cont_cls closure for @a cont | ||
359 | * @param payload Data to send | ||
360 | * @param payload_size Size of the @a payload | ||
361 | */ | ||
362 | void | ||
363 | GNUNET_TRANSPORT_TESTING_transport_communicator_send (struct | ||
364 | GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle | ||
365 | *tc_h, | ||
366 | GNUNET_SCHEDULER_TaskCallback | ||
367 | cont, | ||
368 | void *cont_cls, | ||
369 | const void *payload, | ||
370 | size_t payload_size); | ||
diff --git a/src/service/transport/transport-testing-filenames2.c b/src/service/transport/transport-testing-filenames2.c new file mode 100644 index 000000000..59fa1ebd5 --- /dev/null +++ b/src/service/transport/transport-testing-filenames2.c | |||
@@ -0,0 +1,203 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2006, 2009, 2015, 2016 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | /** | ||
21 | * @file transport-testing-filenames.c | ||
22 | * @brief convenience string manipulation functions for tests | ||
23 | * @author Matthias Wachs | ||
24 | * @author Christian Grothoff | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "transport-testing2.h" | ||
28 | |||
29 | |||
30 | /** | ||
31 | * Removes all directory separators from absolute filename | ||
32 | * | ||
33 | * @param file the absolute file name, e.g. as found in argv[0] | ||
34 | * @return extracted file name, has to be freed by caller | ||
35 | */ | ||
36 | static char * | ||
37 | extract_filename (const char *file) | ||
38 | { | ||
39 | char *pch = GNUNET_strdup (file); | ||
40 | char *backup = pch; | ||
41 | char *filename = NULL; | ||
42 | char *res; | ||
43 | |||
44 | if (NULL != strstr (pch, "/")) | ||
45 | { | ||
46 | pch = strtok (pch, "/"); | ||
47 | while (pch != NULL) | ||
48 | { | ||
49 | pch = strtok (NULL, "/"); | ||
50 | if (pch != NULL) | ||
51 | { | ||
52 | filename = pch; | ||
53 | } | ||
54 | } | ||
55 | } | ||
56 | else | ||
57 | filename = pch; | ||
58 | |||
59 | res = GNUNET_strdup (filename); | ||
60 | GNUNET_free (backup); | ||
61 | return res; | ||
62 | } | ||
63 | |||
64 | |||
65 | /** | ||
66 | * Extracts the test filename from an absolute file name and removes | ||
67 | * the extension | ||
68 | * | ||
69 | * @param file absolute file name | ||
70 | * @return the result | ||
71 | */ | ||
72 | char * | ||
73 | GNUNET_TRANSPORT_TESTING_get_test_name (const char *file) | ||
74 | { | ||
75 | char *backup = extract_filename (file); | ||
76 | char *filename = backup; | ||
77 | char *dotexe; | ||
78 | char *ret; | ||
79 | |||
80 | if (NULL == filename) | ||
81 | return NULL; | ||
82 | |||
83 | /* remove "lt-" */ | ||
84 | filename = strstr (filename, "test"); | ||
85 | if (NULL == filename) | ||
86 | { | ||
87 | GNUNET_free (backup); | ||
88 | return NULL; | ||
89 | } | ||
90 | |||
91 | /* remove ".exe" */ | ||
92 | if (NULL != (dotexe = strstr (filename, ".exe"))) | ||
93 | dotexe[0] = '\0'; | ||
94 | ret = GNUNET_strdup (filename); | ||
95 | GNUNET_free (backup); | ||
96 | return ret; | ||
97 | } | ||
98 | |||
99 | |||
100 | /** | ||
101 | * Extracts the filename from an absolute file name and removes the extension | ||
102 | * | ||
103 | * @param file absolute file name | ||
104 | * @return the result | ||
105 | */ | ||
106 | char * | ||
107 | GNUNET_TRANSPORT_TESTING_get_test_source_name (const char *file) | ||
108 | { | ||
109 | char *src = extract_filename (file); | ||
110 | char *split; | ||
111 | |||
112 | split = strstr (src, "."); | ||
113 | if (NULL != split) | ||
114 | split[0] = '\0'; | ||
115 | return src; | ||
116 | } | ||
117 | |||
118 | |||
119 | /** | ||
120 | * Extracts the plugin name from an absolute file name and the test name | ||
121 | * | ||
122 | * @param file absolute file name | ||
123 | * @param test test name | ||
124 | * @return the result | ||
125 | */ | ||
126 | char * | ||
127 | GNUNET_TRANSPORT_TESTING_get_test_plugin_name (const char *file, | ||
128 | const char *test) | ||
129 | { | ||
130 | char *filename; | ||
131 | char *dotexe; | ||
132 | char *e = extract_filename (file); | ||
133 | char *t = extract_filename (test); | ||
134 | char *ret; | ||
135 | |||
136 | if (NULL == e) | ||
137 | goto fail; | ||
138 | /* remove "lt-" */ | ||
139 | filename = strstr (e, "tes"); | ||
140 | if (NULL == filename) | ||
141 | goto fail; | ||
142 | /* remove ".exe" */ | ||
143 | if (NULL != (dotexe = strstr (filename, ".exe"))) | ||
144 | dotexe[0] = '\0'; | ||
145 | |||
146 | /* find last _ */ | ||
147 | filename = strstr (filename, t); | ||
148 | if (NULL == filename) | ||
149 | goto fail; | ||
150 | /* copy plugin */ | ||
151 | filename += strlen (t); | ||
152 | if ('\0' != *filename) | ||
153 | filename++; | ||
154 | ret = GNUNET_strdup (filename); | ||
155 | goto suc; | ||
156 | fail: | ||
157 | ret = NULL; | ||
158 | suc: | ||
159 | GNUNET_free (t); | ||
160 | GNUNET_free (e); | ||
161 | return ret; | ||
162 | } | ||
163 | |||
164 | |||
165 | /** | ||
166 | * This function takes the filename (e.g. argv[0), removes a "lt-"-prefix and | ||
167 | * if existing ".exe"-prefix and adds the peer-number | ||
168 | * | ||
169 | * @param file filename of the test, e.g. argv[0] | ||
170 | * @param count peer number | ||
171 | * @return the result | ||
172 | */ | ||
173 | char * | ||
174 | GNUNET_TRANSPORT_TESTING_get_config_name (const char *file, | ||
175 | int count) | ||
176 | { | ||
177 | char *filename = extract_filename (file); | ||
178 | char *backup = filename; | ||
179 | char *dotexe; | ||
180 | char *ret; | ||
181 | |||
182 | if (NULL == filename) | ||
183 | return NULL; | ||
184 | /* remove "lt-" */ | ||
185 | filename = strstr (filename, "test"); | ||
186 | if (NULL == filename) | ||
187 | goto fail; | ||
188 | /* remove ".exe" */ | ||
189 | if (NULL != (dotexe = strstr (filename, ".exe"))) | ||
190 | dotexe[0] = '\0'; | ||
191 | GNUNET_asprintf (&ret, | ||
192 | "%s_peer%u.conf", | ||
193 | filename, | ||
194 | count); | ||
195 | GNUNET_free (backup); | ||
196 | return ret; | ||
197 | fail: | ||
198 | GNUNET_free (backup); | ||
199 | return NULL; | ||
200 | } | ||
201 | |||
202 | |||
203 | /* end of transport-testing-filenames.c */ | ||
diff --git a/src/service/transport/transport-testing-loggers2.c b/src/service/transport/transport-testing-loggers2.c new file mode 100644 index 000000000..e6c79b78a --- /dev/null +++ b/src/service/transport/transport-testing-loggers2.c | |||
@@ -0,0 +1,81 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2016 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | /** | ||
21 | * @file transport-testing-loggers.c | ||
22 | * @brief convenience functions for logging common events in tests | ||
23 | * @author Christian Grothoff | ||
24 | */ | ||
25 | #include "platform.h" | ||
26 | #include "transport-testing2.h" | ||
27 | |||
28 | |||
29 | /** | ||
30 | * Log a connect event. | ||
31 | * | ||
32 | * @param cls NULL | ||
33 | * @param me peer that had the event | ||
34 | * @param other peer that connected. | ||
35 | */ | ||
36 | void | ||
37 | GNUNET_TRANSPORT_TESTING_log_connect (void *cls, | ||
38 | struct | ||
39 | GNUNET_TRANSPORT_TESTING_PeerContext *me, | ||
40 | const struct GNUNET_PeerIdentity *other) | ||
41 | { | ||
42 | char *ps; | ||
43 | |||
44 | ps = GNUNET_strdup (GNUNET_i2s (&me->id)); | ||
45 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
46 | "Peer %s connected to %u (%s)!\n", | ||
47 | GNUNET_i2s (other), | ||
48 | me->no, | ||
49 | ps); | ||
50 | GNUNET_free (ps); | ||
51 | } | ||
52 | |||
53 | |||
54 | /** | ||
55 | * Log a disconnect event. | ||
56 | * | ||
57 | * @param cls NULL | ||
58 | * @param me peer that had the event | ||
59 | * @param other peer that disconnected. | ||
60 | */ | ||
61 | void | ||
62 | GNUNET_TRANSPORT_TESTING_log_disconnect (void *cls, | ||
63 | struct | ||
64 | GNUNET_TRANSPORT_TESTING_PeerContext * | ||
65 | me, | ||
66 | const struct | ||
67 | GNUNET_PeerIdentity *other) | ||
68 | { | ||
69 | char *ps; | ||
70 | |||
71 | ps = GNUNET_strdup (GNUNET_i2s (&me->id)); | ||
72 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
73 | "Peer `%s' disconnected from %u (%s)!\n", | ||
74 | GNUNET_i2s (other), | ||
75 | me->no, | ||
76 | ps); | ||
77 | GNUNET_free (ps); | ||
78 | } | ||
79 | |||
80 | |||
81 | /* end of transport-testing-loggers.c */ | ||
diff --git a/src/service/transport/transport-testing-main2.c b/src/service/transport/transport-testing-main2.c new file mode 100644 index 000000000..0a1710922 --- /dev/null +++ b/src/service/transport/transport-testing-main2.c | |||
@@ -0,0 +1,614 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2016 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | /** | ||
21 | * @file transport-testing-main.c | ||
22 | * @brief convenience main function for tests | ||
23 | * @author Christian Grothoff | ||
24 | */ | ||
25 | #include "platform.h" | ||
26 | #include "transport-testing2.h" | ||
27 | |||
28 | |||
29 | /** | ||
30 | * Closure for #connect_cb. | ||
31 | */ | ||
32 | struct GNUNET_TRANSPORT_TESTING_ConnectRequestList | ||
33 | { | ||
34 | /** | ||
35 | * Stored in a DLL. | ||
36 | */ | ||
37 | struct GNUNET_TRANSPORT_TESTING_ConnectRequestList *next; | ||
38 | |||
39 | /** | ||
40 | * Stored in a DLL. | ||
41 | */ | ||
42 | struct GNUNET_TRANSPORT_TESTING_ConnectRequestList *prev; | ||
43 | |||
44 | /** | ||
45 | * Overall context we are in. | ||
46 | */ | ||
47 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc; | ||
48 | |||
49 | /** | ||
50 | * Connect request this is about. | ||
51 | */ | ||
52 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cr; | ||
53 | |||
54 | /** | ||
55 | * Peer being connected. | ||
56 | */ | ||
57 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p1; | ||
58 | |||
59 | /** | ||
60 | * Peer being connected. | ||
61 | */ | ||
62 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p2; | ||
63 | }; | ||
64 | |||
65 | |||
66 | /** | ||
67 | * Shutdown function for the test. Stops all peers. | ||
68 | * | ||
69 | * @param cls our `struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *` | ||
70 | */ | ||
71 | static void | ||
72 | do_shutdown (void *cls) | ||
73 | { | ||
74 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc = cls; | ||
75 | struct GNUNET_TRANSPORT_TESTING_ConnectRequestList *crl; | ||
76 | |||
77 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
78 | "Testcase shutting down\n"); | ||
79 | if (NULL != ccc->shutdown_task) | ||
80 | ccc->shutdown_task (ccc->shutdown_task_cls); | ||
81 | if (NULL != ccc->timeout_task) | ||
82 | { | ||
83 | GNUNET_SCHEDULER_cancel (ccc->timeout_task); | ||
84 | ccc->timeout_task = NULL; | ||
85 | } | ||
86 | if (NULL != ccc->connect_task) | ||
87 | { | ||
88 | GNUNET_SCHEDULER_cancel (ccc->connect_task); | ||
89 | ccc->connect_task = NULL; | ||
90 | } | ||
91 | while (NULL != (crl = ccc->crl_head)) | ||
92 | { | ||
93 | GNUNET_CONTAINER_DLL_remove (ccc->crl_head, | ||
94 | ccc->crl_tail, | ||
95 | crl); | ||
96 | GNUNET_TRANSPORT_TESTING_connect_peers_cancel (crl->cr); | ||
97 | GNUNET_free (crl); | ||
98 | } | ||
99 | for (unsigned int i = 0; i < ccc->num_peers; i++) | ||
100 | { | ||
101 | if (NULL != ccc->p[i]) | ||
102 | { | ||
103 | GNUNET_TRANSPORT_TESTING_stop_peer (ccc->p[i]); | ||
104 | ccc->p[i] = NULL; | ||
105 | } | ||
106 | } | ||
107 | } | ||
108 | |||
109 | |||
110 | /** | ||
111 | * Testcase hit timeout, shut it down with error. | ||
112 | * | ||
113 | * @param cls our `struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *` | ||
114 | */ | ||
115 | static void | ||
116 | do_timeout (void *cls) | ||
117 | { | ||
118 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc = cls; | ||
119 | |||
120 | ccc->timeout_task = NULL; | ||
121 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
122 | "Testcase timed out\n"); | ||
123 | ccc->global_ret = GNUNET_SYSERR; | ||
124 | GNUNET_SCHEDULER_shutdown (); | ||
125 | } | ||
126 | |||
127 | |||
128 | /** | ||
129 | * Internal data structure. Closure for | ||
130 | * #connect_cb, #disconnect_cb, #my_nc and #start_cb. | ||
131 | * Allows us to identify which peer this is about. | ||
132 | */ | ||
133 | struct GNUNET_TRANSPORT_TESTING_InternalPeerContext | ||
134 | { | ||
135 | /** | ||
136 | * Overall context of the callback. | ||
137 | */ | ||
138 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc; | ||
139 | |||
140 | /** | ||
141 | * Offset of the peer this is about. | ||
142 | */ | ||
143 | unsigned int off; | ||
144 | }; | ||
145 | |||
146 | |||
147 | /** | ||
148 | * Information tracked per connected peer. | ||
149 | */ | ||
150 | struct ConnectPairInfo | ||
151 | { | ||
152 | /** | ||
153 | * Peer this is about. | ||
154 | */ | ||
155 | const struct GNUNET_PeerIdentity *sender; | ||
156 | |||
157 | /** | ||
158 | * Information about the receiving peer. | ||
159 | */ | ||
160 | struct GNUNET_TRANSPORT_TESTING_InternalPeerContext *ipi; | ||
161 | }; | ||
162 | |||
163 | |||
164 | /** | ||
165 | * Function called when we connected two peers. Once we have gotten | ||
166 | * to the clique, launch test-specific logic. | ||
167 | * | ||
168 | * @param cls our `struct GNUNET_TRANSPORT_TESTING_ConnectRequestList *` | ||
169 | */ | ||
170 | static void | ||
171 | connect_cb (void *cls) | ||
172 | { | ||
173 | struct GNUNET_TRANSPORT_TESTING_ConnectRequestList *crl = cls; | ||
174 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc = crl->ccc; | ||
175 | |||
176 | GNUNET_CONTAINER_DLL_remove (ccc->crl_head, | ||
177 | ccc->crl_tail, | ||
178 | crl); | ||
179 | { | ||
180 | char *p1_c = GNUNET_strdup (GNUNET_i2s (&crl->p1->id)); | ||
181 | |||
182 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
183 | "Peers connected: %u (%s) <-> %u (%s)\n", | ||
184 | crl->p1->no, | ||
185 | p1_c, | ||
186 | crl->p2->no, | ||
187 | GNUNET_i2s (&crl->p2->id)); | ||
188 | GNUNET_free (p1_c); | ||
189 | GNUNET_free (crl); | ||
190 | } | ||
191 | if (NULL == ccc->crl_head) | ||
192 | { | ||
193 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
194 | "All connections UP, launching custom test logic.\n"); | ||
195 | GNUNET_SCHEDULER_add_now (ccc->connect_continuation, | ||
196 | ccc->connect_continuation_cls); | ||
197 | } | ||
198 | } | ||
199 | |||
200 | |||
201 | /** | ||
202 | * Find peer by peer ID. | ||
203 | * | ||
204 | * @param ccc context to search | ||
205 | * @param peer peer to look for | ||
206 | * @return NULL if @a peer was not found | ||
207 | */ | ||
208 | struct GNUNET_TRANSPORT_TESTING_PeerContext * | ||
209 | GNUNET_TRANSPORT_TESTING_find_peer (struct | ||
210 | GNUNET_TRANSPORT_TESTING_ConnectCheckContext | ||
211 | *ccc, | ||
212 | const struct GNUNET_PeerIdentity *peer) | ||
213 | { | ||
214 | for (unsigned int i = 0; i < ccc->num_peers; i++) | ||
215 | if ((NULL != ccc->p[i]) && | ||
216 | (0 == memcmp (peer, | ||
217 | &ccc->p[i]->id, | ||
218 | sizeof(*peer)))) | ||
219 | return ccc->p[i]; | ||
220 | return NULL; | ||
221 | } | ||
222 | |||
223 | |||
224 | /** | ||
225 | * Wrapper around peers connecting. Calls client's nc function. | ||
226 | * | ||
227 | * @param cls our `struct GNUNET_TRANSPORT_TESTING_InternalPeerContext *` | ||
228 | * @param peer peer we got connected to | ||
229 | * @param mq message queue for transmissions to @a peer | ||
230 | * @return closure for message handlers | ||
231 | */ | ||
232 | static void * | ||
233 | my_nc (void *cls, | ||
234 | const struct GNUNET_PeerIdentity *peer, | ||
235 | struct GNUNET_MQ_Handle *mq) | ||
236 | { | ||
237 | struct GNUNET_TRANSPORT_TESTING_InternalPeerContext *ipi = cls; | ||
238 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc = ipi->ccc; | ||
239 | struct ConnectPairInfo *cpi; | ||
240 | |||
241 | if (NULL != ccc->nc) | ||
242 | ccc->nc (ccc->cls, | ||
243 | ccc->p[ipi->off], | ||
244 | peer); | ||
245 | cpi = GNUNET_new (struct ConnectPairInfo); | ||
246 | cpi->ipi = ipi; | ||
247 | cpi->sender = peer; /* valid until disconnect */ | ||
248 | return cpi; | ||
249 | } | ||
250 | |||
251 | |||
252 | /** | ||
253 | * Wrapper around peers disconnecting. Calls client's nd function. | ||
254 | * | ||
255 | * @param cls our `struct GNUNET_TRANSPORT_TESTING_InternalPeerContext *` | ||
256 | * @param peer peer we got disconnected from | ||
257 | * @param custom_cls return value from @a my_nc | ||
258 | */ | ||
259 | static void | ||
260 | my_nd (void *cls, | ||
261 | const struct GNUNET_PeerIdentity *peer, | ||
262 | void *custom_cls) | ||
263 | { | ||
264 | struct GNUNET_TRANSPORT_TESTING_InternalPeerContext *ipi = cls; | ||
265 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc = ipi->ccc; | ||
266 | struct ConnectPairInfo *cpi = custom_cls; | ||
267 | |||
268 | if (NULL != ccc->nd) | ||
269 | ccc->nd (ccc->cls, | ||
270 | ccc->p[ipi->off], | ||
271 | peer); | ||
272 | GNUNET_free (cpi); | ||
273 | } | ||
274 | |||
275 | |||
276 | /** | ||
277 | * Wrapper around receiving data. Calls client's rec function. | ||
278 | * | ||
279 | * @param cls our `struct ConnectPairInfo *` | ||
280 | * @param message message we received | ||
281 | * @return #GNUNET_OK (all messages are fine) | ||
282 | */ | ||
283 | static int | ||
284 | check_test (void *cls, | ||
285 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *message) | ||
286 | { | ||
287 | return GNUNET_OK; | ||
288 | } | ||
289 | |||
290 | |||
291 | /** | ||
292 | * Wrapper around receiving data. Calls client's rec function. | ||
293 | * | ||
294 | * @param cls our `struct ConnectPairInfo *` | ||
295 | * @param message message we received | ||
296 | */ | ||
297 | static void | ||
298 | handle_test (void *cls, | ||
299 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *message) | ||
300 | { | ||
301 | struct ConnectPairInfo *cpi = cls; | ||
302 | struct GNUNET_TRANSPORT_TESTING_InternalPeerContext *ipi = cpi->ipi; | ||
303 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc = ipi->ccc; | ||
304 | |||
305 | if (NULL != ccc->rec) | ||
306 | ccc->rec (ccc->cls, | ||
307 | ccc->p[ipi->off], | ||
308 | cpi->sender, | ||
309 | message); | ||
310 | } | ||
311 | |||
312 | |||
313 | /** | ||
314 | * Wrapper around receiving data. Calls client's rec function. | ||
315 | * | ||
316 | * @param cls our `struct ConnectPairInfo *` | ||
317 | * @param message message we received | ||
318 | * @return #GNUNET_OK (all messages are fine) | ||
319 | */ | ||
320 | static int | ||
321 | check_test2 (void *cls, | ||
322 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *message) | ||
323 | { | ||
324 | return GNUNET_OK; | ||
325 | } | ||
326 | |||
327 | |||
328 | /** | ||
329 | * Wrapper around receiving data. Calls client's rec function. | ||
330 | * | ||
331 | * @param cls our `struct ConnectPairInfo *` | ||
332 | * @param message message we received | ||
333 | */ | ||
334 | static void | ||
335 | handle_test2 (void *cls, | ||
336 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *message) | ||
337 | { | ||
338 | struct ConnectPairInfo *cpi = cls; | ||
339 | struct GNUNET_TRANSPORT_TESTING_InternalPeerContext *ipi = cpi->ipi; | ||
340 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc = ipi->ccc; | ||
341 | |||
342 | if (NULL != ccc->rec) | ||
343 | ccc->rec (ccc->cls, | ||
344 | ccc->p[ipi->off], | ||
345 | cpi->sender, | ||
346 | message); | ||
347 | } | ||
348 | |||
349 | |||
350 | /** | ||
351 | * Connect the peers as a clique. | ||
352 | * | ||
353 | * @param cls our `struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext` | ||
354 | */ | ||
355 | static void | ||
356 | do_connect (void *cls) | ||
357 | { | ||
358 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc = cls; | ||
359 | |||
360 | ccc->connect_task = NULL; | ||
361 | for (unsigned int i = 0; i < ccc->num_peers; i++) | ||
362 | for (unsigned int j = (ccc->bi_directional ? 0 : i + 1); j < ccc->num_peers; | ||
363 | j++) | ||
364 | { | ||
365 | struct GNUNET_TRANSPORT_TESTING_ConnectRequestList *crl; | ||
366 | |||
367 | if (i == j) | ||
368 | continue; | ||
369 | crl = GNUNET_new (struct GNUNET_TRANSPORT_TESTING_ConnectRequestList); | ||
370 | GNUNET_CONTAINER_DLL_insert (ccc->crl_head, | ||
371 | ccc->crl_tail, | ||
372 | crl); | ||
373 | crl->ccc = ccc; | ||
374 | crl->p1 = ccc->p[i]; | ||
375 | crl->p2 = ccc->p[j]; | ||
376 | { | ||
377 | char *sender_c = GNUNET_strdup (GNUNET_i2s (&ccc->p[0]->id)); | ||
378 | |||
379 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
380 | "Test tries to connect peer %u (`%s') -> peer %u (`%s')\n", | ||
381 | ccc->p[0]->no, | ||
382 | sender_c, | ||
383 | ccc->p[1]->no, | ||
384 | GNUNET_i2s (&ccc->p[1]->id)); | ||
385 | GNUNET_free (sender_c); | ||
386 | } | ||
387 | crl->cr = GNUNET_TRANSPORT_TESTING_connect_peers (ccc->p[i], | ||
388 | ccc->p[j], | ||
389 | &connect_cb, | ||
390 | crl); | ||
391 | } | ||
392 | } | ||
393 | |||
394 | |||
395 | /** | ||
396 | * Function called once we have successfully launched a peer. | ||
397 | * Once all peers have been launched, we connect all of them | ||
398 | * in a clique. | ||
399 | * | ||
400 | * @param cls our `struct GNUNET_TRANSPORT_TESTING_InternalPeerContext *` | ||
401 | */ | ||
402 | static void | ||
403 | start_cb (void *cls) | ||
404 | { | ||
405 | struct GNUNET_TRANSPORT_TESTING_InternalPeerContext *ipi = cls; | ||
406 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc = ipi->ccc; | ||
407 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p = ccc->p[ipi->off]; | ||
408 | |||
409 | ccc->started++; | ||
410 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
411 | "Peer %u (`%s') started\n", | ||
412 | p->no, | ||
413 | GNUNET_i2s (&p->id)); | ||
414 | if (ccc->started != ccc->num_peers) | ||
415 | return; | ||
416 | if (NULL != ccc->pre_connect_task) | ||
417 | { | ||
418 | /* Run the custom per-connect job, then give it a second to | ||
419 | go into effect before we continue connecting peers. */ | ||
420 | ccc->pre_connect_task (ccc->pre_connect_task_cls); | ||
421 | ccc->connect_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS, | ||
422 | &do_connect, | ||
423 | ccc); | ||
424 | } | ||
425 | else | ||
426 | { | ||
427 | do_connect (ccc); | ||
428 | } | ||
429 | } | ||
430 | |||
431 | |||
432 | /** | ||
433 | * Function run from #GNUNET_TRANSPORT_TESTING_connect_check | ||
434 | * once the scheduler is up. Should launch the peers and | ||
435 | * then in the continuations try to connect them. | ||
436 | * | ||
437 | * @param cls our `struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *` | ||
438 | * @param args ignored | ||
439 | * @param cfgfile ignored | ||
440 | * @param cfg configuration | ||
441 | */ | ||
442 | static void | ||
443 | connect_check_run (void *cls, | ||
444 | char *const *args, | ||
445 | const char *cfgfile, | ||
446 | const struct GNUNET_CONFIGURATION_Handle *cfg) | ||
447 | { | ||
448 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc = cls; | ||
449 | int ok; | ||
450 | |||
451 | ccc->cfg = cfg; | ||
452 | ccc->timeout_task = GNUNET_SCHEDULER_add_delayed (ccc->timeout, | ||
453 | &do_timeout, | ||
454 | ccc); | ||
455 | GNUNET_SCHEDULER_add_shutdown (&do_shutdown, | ||
456 | ccc); | ||
457 | ok = GNUNET_OK; | ||
458 | for (unsigned int i = 0; i < ccc->num_peers; i++) | ||
459 | { | ||
460 | struct GNUNET_MQ_MessageHandler handlers[] = { | ||
461 | GNUNET_MQ_hd_var_size (test, | ||
462 | GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE, | ||
463 | struct GNUNET_TRANSPORT_TESTING_TestMessage, | ||
464 | NULL), | ||
465 | GNUNET_MQ_hd_var_size (test2, | ||
466 | GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE2, | ||
467 | struct GNUNET_TRANSPORT_TESTING_TestMessage, | ||
468 | NULL), | ||
469 | GNUNET_MQ_handler_end () | ||
470 | }; | ||
471 | ccc->p[i] = GNUNET_TRANSPORT_TESTING_start_peer (ccc->tth, | ||
472 | ccc->cfg_files[i], | ||
473 | i + 1, | ||
474 | handlers, | ||
475 | &my_nc, | ||
476 | &my_nd, | ||
477 | &ccc->ip[i], | ||
478 | &start_cb, | ||
479 | &ccc->ip[i]); | ||
480 | if (NULL == ccc->p[i]) | ||
481 | ok = GNUNET_SYSERR; | ||
482 | } | ||
483 | if (GNUNET_OK != ok) | ||
484 | { | ||
485 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
486 | "Fail! Could not start peers!\n"); | ||
487 | GNUNET_SCHEDULER_shutdown (); | ||
488 | } | ||
489 | } | ||
490 | |||
491 | |||
492 | /** | ||
493 | * Common implementation of the #GNUNET_TRANSPORT_TESTING_CheckCallback. | ||
494 | * Starts and connects the two peers, then invokes the | ||
495 | * `connect_continuation` from @a cls. Sets up a timeout to | ||
496 | * abort the test, and a shutdown handler to clean up properly | ||
497 | * on exit. | ||
498 | * | ||
499 | * @param cls closure of type `struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext` | ||
500 | * @param tth_ initialized testing handle | ||
501 | * @param test_plugin_ name of the plugin | ||
502 | * @param test_name_ name of the test | ||
503 | * @param num_peers number of entries in the @a cfg_file array | ||
504 | * @param cfg_files array of names of configuration files for the peers | ||
505 | * @return #GNUNET_SYSERR on error | ||
506 | */ | ||
507 | int | ||
508 | GNUNET_TRANSPORT_TESTING_connect_check (void *cls, | ||
509 | struct GNUNET_TRANSPORT_TESTING_Handle * | ||
510 | tth_, | ||
511 | const char *test_plugin_, | ||
512 | const char *test_name_, | ||
513 | unsigned int num_peers, | ||
514 | char *cfg_files[]) | ||
515 | { | ||
516 | static struct GNUNET_GETOPT_CommandLineOption options[] = { | ||
517 | GNUNET_GETOPT_OPTION_END | ||
518 | }; | ||
519 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc = cls; | ||
520 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p[num_peers]; | ||
521 | struct GNUNET_TRANSPORT_TESTING_InternalPeerContext ip[num_peers]; | ||
522 | char *argv[] = { | ||
523 | (char *) test_name_, | ||
524 | "-c", | ||
525 | (char *) ccc->config_file, | ||
526 | NULL | ||
527 | }; | ||
528 | |||
529 | ccc->num_peers = num_peers; | ||
530 | ccc->cfg_files = cfg_files; | ||
531 | ccc->test_plugin = test_plugin_; | ||
532 | ccc->test_name = test_name_; | ||
533 | ccc->tth = tth_; | ||
534 | ccc->global_ret = GNUNET_OK; | ||
535 | ccc->p = p; | ||
536 | ccc->ip = ip; | ||
537 | for (unsigned int i = 0; i < num_peers; i++) | ||
538 | { | ||
539 | ip[i].off = i; | ||
540 | ip[i].ccc = ccc; | ||
541 | } | ||
542 | if (GNUNET_OK != | ||
543 | GNUNET_PROGRAM_run ((sizeof(argv) / sizeof(char *)) - 1, | ||
544 | argv, | ||
545 | test_name_, | ||
546 | "nohelp", | ||
547 | options, | ||
548 | &connect_check_run, | ||
549 | ccc)) | ||
550 | return GNUNET_SYSERR; | ||
551 | return ccc->global_ret; | ||
552 | } | ||
553 | |||
554 | |||
555 | /** | ||
556 | * Setup testcase. Calls @a check with the data the test needs. | ||
557 | * | ||
558 | * @param argv0 binary name (argv[0]) | ||
559 | * @param filename source file name (__FILE__) | ||
560 | * @param num_peers number of peers to start | ||
561 | * @param check main function to run | ||
562 | * @param check_cls closure for @a check | ||
563 | * @return #GNUNET_OK on success | ||
564 | */ | ||
565 | int | ||
566 | GNUNET_TRANSPORT_TESTING_main_ (const char *argv0, | ||
567 | const char *filename, | ||
568 | unsigned int num_peers, | ||
569 | GNUNET_TRANSPORT_TESTING_CheckCallback check, | ||
570 | void *check_cls) | ||
571 | { | ||
572 | struct GNUNET_TRANSPORT_TESTING_Handle *tth; | ||
573 | char *test_name; | ||
574 | char *test_source; | ||
575 | char *test_plugin; | ||
576 | char *cfg_names[num_peers]; | ||
577 | int ret; | ||
578 | |||
579 | ret = GNUNET_OK; | ||
580 | test_name = GNUNET_TRANSPORT_TESTING_get_test_name (argv0); | ||
581 | GNUNET_log_setup (test_name, | ||
582 | "WARNING", | ||
583 | NULL); | ||
584 | test_source = GNUNET_TRANSPORT_TESTING_get_test_source_name (filename); | ||
585 | test_plugin = GNUNET_TRANSPORT_TESTING_get_test_plugin_name (argv0, | ||
586 | test_source); | ||
587 | for (unsigned int i = 0; i < num_peers; i++) | ||
588 | cfg_names[i] = GNUNET_TRANSPORT_TESTING_get_config_name (argv0, | ||
589 | i + 1); | ||
590 | tth = GNUNET_TRANSPORT_TESTING_init (); | ||
591 | if (NULL == tth) | ||
592 | { | ||
593 | ret = GNUNET_SYSERR; | ||
594 | } | ||
595 | else | ||
596 | { | ||
597 | ret = check (check_cls, | ||
598 | tth, | ||
599 | test_plugin, | ||
600 | test_name, | ||
601 | num_peers, | ||
602 | cfg_names); | ||
603 | GNUNET_TRANSPORT_TESTING_done (tth); | ||
604 | } | ||
605 | for (unsigned int i = 0; i < num_peers; i++) | ||
606 | GNUNET_free (cfg_names[i]); | ||
607 | GNUNET_free (test_source); | ||
608 | GNUNET_free (test_plugin); | ||
609 | GNUNET_free (test_name); | ||
610 | return ret; | ||
611 | } | ||
612 | |||
613 | |||
614 | /* end of transport-testing-main.c */ | ||
diff --git a/src/service/transport/transport-testing-send2.c b/src/service/transport/transport-testing-send2.c new file mode 100644 index 000000000..c48dc3a4a --- /dev/null +++ b/src/service/transport/transport-testing-send2.c | |||
@@ -0,0 +1,241 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2016 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | /** | ||
21 | * @file transport-testing-send.c | ||
22 | * @brief convenience transmission function for tests | ||
23 | * @author Christian Grothoff | ||
24 | */ | ||
25 | #include "platform.h" | ||
26 | #include "transport-testing2.h" | ||
27 | |||
28 | /** | ||
29 | * Acceptable transmission delay. | ||
30 | */ | ||
31 | #define TIMEOUT_TRANSMIT GNUNET_TIME_relative_multiply ( \ | ||
32 | GNUNET_TIME_UNIT_SECONDS, 30) | ||
33 | |||
34 | |||
35 | /** | ||
36 | * Return @a cx in @a cls. | ||
37 | */ | ||
38 | static void | ||
39 | find_cr (void *cls, | ||
40 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cx) | ||
41 | { | ||
42 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest **cr = cls; | ||
43 | |||
44 | if (GNUNET_NO == cx->connected) | ||
45 | return; | ||
46 | *cr = cx; | ||
47 | } | ||
48 | |||
49 | |||
50 | /** | ||
51 | * Send a test message of type @a mtype and size @a msize from | ||
52 | * peer @a sender to peer @a receiver. The peers should be | ||
53 | * connected when this function is called. | ||
54 | * | ||
55 | * @param sender the sending peer | ||
56 | * @param receiver the receiving peer | ||
57 | * @param mtype message type to use | ||
58 | * @param msize size of the message, at least `sizeof (struct GNUNET_TRANSPORT_TESTING_TestMessage)` | ||
59 | * @param num unique message number | ||
60 | * @param cont continuation to call after transmission | ||
61 | * @param cont_cls closure for @a cont | ||
62 | * @return #GNUNET_OK if message was queued, | ||
63 | * #GNUNET_NO if peers are not connected | ||
64 | * #GNUNET_SYSERR if @a msize is illegal | ||
65 | */ | ||
66 | int | ||
67 | GNUNET_TRANSPORT_TESTING_send (struct | ||
68 | GNUNET_TRANSPORT_TESTING_PeerContext *sender, | ||
69 | struct GNUNET_TRANSPORT_TESTING_PeerContext * | ||
70 | receiver, | ||
71 | uint16_t mtype, | ||
72 | uint16_t msize, | ||
73 | uint32_t num, | ||
74 | GNUNET_SCHEDULER_TaskCallback cont, | ||
75 | void *cont_cls) | ||
76 | { | ||
77 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cr; | ||
78 | struct GNUNET_MQ_Envelope *env; | ||
79 | struct GNUNET_TRANSPORT_TESTING_TestMessage *test; | ||
80 | |||
81 | if (msize < sizeof(struct GNUNET_TRANSPORT_TESTING_TestMessage)) | ||
82 | { | ||
83 | GNUNET_break (0); | ||
84 | return GNUNET_SYSERR; | ||
85 | } | ||
86 | cr = NULL; | ||
87 | GNUNET_TRANSPORT_TESTING_find_connecting_context (sender, | ||
88 | receiver, | ||
89 | &find_cr, | ||
90 | &cr); | ||
91 | if (NULL == cr) | ||
92 | GNUNET_TRANSPORT_TESTING_find_connecting_context (receiver, | ||
93 | sender, | ||
94 | &find_cr, | ||
95 | &cr); | ||
96 | if (NULL == cr) | ||
97 | { | ||
98 | GNUNET_break (0); | ||
99 | return GNUNET_NO; | ||
100 | } | ||
101 | if (NULL == cr->mq) | ||
102 | { | ||
103 | GNUNET_break (0); | ||
104 | return GNUNET_NO; | ||
105 | } | ||
106 | { | ||
107 | char *receiver_s = GNUNET_strdup (GNUNET_i2s (&receiver->id)); | ||
108 | |||
109 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
110 | "Sending message from peer %u (`%s') -> peer %u (`%s') !\n", | ||
111 | sender->no, | ||
112 | GNUNET_i2s (&sender->id), | ||
113 | receiver->no, | ||
114 | receiver_s); | ||
115 | GNUNET_free (receiver_s); | ||
116 | } | ||
117 | env = GNUNET_MQ_msg_extra (test, | ||
118 | msize - sizeof(*test), | ||
119 | mtype); | ||
120 | test->num = htonl (num); | ||
121 | memset (&test[1], | ||
122 | num, | ||
123 | msize - sizeof(*test)); | ||
124 | GNUNET_MQ_notify_sent (env, | ||
125 | cont, | ||
126 | cont_cls); | ||
127 | GNUNET_MQ_send (cr->mq, | ||
128 | env); | ||
129 | return GNUNET_OK; | ||
130 | } | ||
131 | |||
132 | |||
133 | /** | ||
134 | * Task that sends a test message from the | ||
135 | * first peer to the second peer. | ||
136 | * | ||
137 | * @param ccc context which should contain at least two peers, the | ||
138 | * first two of which should be currently connected | ||
139 | * @param size desired message size | ||
140 | * @param cont continuation to call after transmission | ||
141 | * @param cont_cls closure for @a cont | ||
142 | */ | ||
143 | static void | ||
144 | do_send (struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc, | ||
145 | uint16_t size, | ||
146 | GNUNET_SCHEDULER_TaskCallback cont, | ||
147 | void *cont_cls) | ||
148 | { | ||
149 | int ret; | ||
150 | |||
151 | ccc->global_ret = GNUNET_SYSERR; | ||
152 | ret = GNUNET_TRANSPORT_TESTING_send (ccc->p[0], | ||
153 | ccc->p[1], | ||
154 | GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE, | ||
155 | size, | ||
156 | ccc->send_num_gen++, | ||
157 | cont, | ||
158 | cont_cls); | ||
159 | GNUNET_assert (GNUNET_SYSERR != ret); | ||
160 | if (GNUNET_NO == ret) | ||
161 | { | ||
162 | GNUNET_break (0); | ||
163 | ccc->global_ret = GNUNET_SYSERR; | ||
164 | GNUNET_SCHEDULER_shutdown (); | ||
165 | } | ||
166 | } | ||
167 | |||
168 | |||
169 | /** | ||
170 | * Task that sends a minimalistic test message from the | ||
171 | * first peer to the second peer. | ||
172 | * | ||
173 | * @param cls the `struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext` | ||
174 | * which should contain at least two peers, the first two | ||
175 | * of which should be currently connected | ||
176 | */ | ||
177 | void | ||
178 | GNUNET_TRANSPORT_TESTING_simple_send (void *cls) | ||
179 | { | ||
180 | struct GNUNET_TRANSPORT_TESTING_SendClosure *sc = cls; | ||
181 | int done; | ||
182 | size_t msize; | ||
183 | |||
184 | if (0 < sc->num_messages) | ||
185 | { | ||
186 | sc->num_messages--; | ||
187 | done = (0 == sc->num_messages); | ||
188 | } | ||
189 | else | ||
190 | { | ||
191 | done = 0; /* infinite loop */ | ||
192 | } | ||
193 | msize = sizeof(struct GNUNET_TRANSPORT_TESTING_TestMessage); | ||
194 | if (NULL != sc->get_size_cb) | ||
195 | msize = sc->get_size_cb (sc->num_messages); | ||
196 | /* if this was the last message, call the continuation, | ||
197 | otherwise call this function again */ | ||
198 | do_send (sc->ccc, | ||
199 | msize, | ||
200 | done ? sc->cont : &GNUNET_TRANSPORT_TESTING_simple_send, | ||
201 | done ? sc->cont_cls : sc); | ||
202 | } | ||
203 | |||
204 | |||
205 | /** | ||
206 | * Task that sends a large test message from the | ||
207 | * first peer to the second peer. | ||
208 | * | ||
209 | * @param cls the `struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext` | ||
210 | * which should contain at least two peers, the first two | ||
211 | * of which should be currently connected | ||
212 | */ | ||
213 | void | ||
214 | GNUNET_TRANSPORT_TESTING_large_send (void *cls) | ||
215 | { | ||
216 | struct GNUNET_TRANSPORT_TESTING_SendClosure *sc = cls; | ||
217 | int done; | ||
218 | size_t msize; | ||
219 | |||
220 | if (0 < sc->num_messages) | ||
221 | { | ||
222 | sc->num_messages--; | ||
223 | done = (0 == sc->num_messages); | ||
224 | } | ||
225 | else | ||
226 | { | ||
227 | done = 0; /* infinite loop */ | ||
228 | } | ||
229 | msize = 2600; | ||
230 | if (NULL != sc->get_size_cb) | ||
231 | msize = sc->get_size_cb (sc->num_messages); | ||
232 | /* if this was the last message, call the continuation, | ||
233 | otherwise call this function again */ | ||
234 | do_send (sc->ccc, | ||
235 | msize, | ||
236 | done ? sc->cont : &GNUNET_TRANSPORT_TESTING_large_send, | ||
237 | done ? sc->cont_cls : sc); | ||
238 | } | ||
239 | |||
240 | |||
241 | /* end of transport-testing-send.c */ | ||
diff --git a/src/service/transport/transport-testing2.c b/src/service/transport/transport-testing2.c new file mode 100644 index 000000000..877730630 --- /dev/null +++ b/src/service/transport/transport-testing2.c | |||
@@ -0,0 +1,871 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2006, 2009, 2015, 2016 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | /** | ||
21 | * @file transport-testing.c | ||
22 | * @brief testing lib for transport service | ||
23 | * @author Matthias Wachs | ||
24 | * @author Christian Grothoff | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "transport-testing2.h" | ||
28 | |||
29 | |||
30 | #define LOG(kind, ...) GNUNET_log_from (kind, "transport-testing", __VA_ARGS__) | ||
31 | |||
32 | |||
33 | static struct GNUNET_TRANSPORT_TESTING_PeerContext * | ||
34 | find_peer_context (struct GNUNET_TRANSPORT_TESTING_Handle *tth, | ||
35 | const struct GNUNET_PeerIdentity *peer) | ||
36 | { | ||
37 | struct GNUNET_TRANSPORT_TESTING_PeerContext *t; | ||
38 | |||
39 | for (t = tth->p_head; NULL != t; t = t->next) | ||
40 | if (0 == memcmp (&t->id, | ||
41 | peer, | ||
42 | sizeof(struct GNUNET_PeerIdentity))) | ||
43 | return t; | ||
44 | return NULL; | ||
45 | } | ||
46 | |||
47 | |||
48 | /** | ||
49 | * Find any connecting context matching the given pair of peers. | ||
50 | * | ||
51 | * @param p1 first peer | ||
52 | * @param p2 second peer | ||
53 | * @param cb function to call | ||
54 | * @param cb_cls closure for @a cb | ||
55 | */ | ||
56 | void | ||
57 | GNUNET_TRANSPORT_TESTING_find_connecting_context (struct | ||
58 | GNUNET_TRANSPORT_TESTING_PeerContext | ||
59 | *p1, | ||
60 | struct | ||
61 | GNUNET_TRANSPORT_TESTING_PeerContext | ||
62 | *p2, | ||
63 | GNUNET_TRANSPORT_TESTING_ConnectContextCallback | ||
64 | cb, | ||
65 | void *cb_cls) | ||
66 | { | ||
67 | struct GNUNET_TRANSPORT_TESTING_Handle *tth = p1->tth; | ||
68 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cc; | ||
69 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *ccn; | ||
70 | |||
71 | for (cc = tth->cc_head; NULL != cc; cc = ccn) | ||
72 | { | ||
73 | ccn = cc->next; | ||
74 | if ((cc->p1 == p1) && | ||
75 | (cc->p2 == p2)) | ||
76 | cb (cb_cls, | ||
77 | cc); | ||
78 | } | ||
79 | } | ||
80 | |||
81 | |||
82 | static void | ||
83 | set_p1c (void *cls, | ||
84 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cx) | ||
85 | { | ||
86 | int *found = cls; | ||
87 | |||
88 | if (NULL != found) | ||
89 | *found = GNUNET_YES; | ||
90 | cx->p1_c = GNUNET_YES; | ||
91 | } | ||
92 | |||
93 | |||
94 | static void | ||
95 | set_mq (void *cls, | ||
96 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cx) | ||
97 | { | ||
98 | struct GNUNET_MQ_Handle *mq = cls; | ||
99 | |||
100 | cx->mq = mq; | ||
101 | } | ||
102 | |||
103 | |||
104 | static void | ||
105 | set_p2c (void *cls, | ||
106 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cx) | ||
107 | { | ||
108 | int *found = cls; | ||
109 | |||
110 | if (NULL != found) | ||
111 | *found = GNUNET_YES; | ||
112 | cx->p2_c = GNUNET_YES; | ||
113 | } | ||
114 | |||
115 | |||
116 | static void | ||
117 | clear_p1c (void *cls, | ||
118 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cx) | ||
119 | { | ||
120 | int *found = cls; | ||
121 | |||
122 | if (NULL != found) | ||
123 | *found = GNUNET_YES; | ||
124 | cx->p1_c = GNUNET_NO; | ||
125 | } | ||
126 | |||
127 | |||
128 | static void | ||
129 | clear_p2c (void *cls, | ||
130 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cx) | ||
131 | { | ||
132 | int *found = cls; | ||
133 | |||
134 | if (NULL != found) | ||
135 | *found = GNUNET_YES; | ||
136 | cx->p2_c = GNUNET_NO; | ||
137 | } | ||
138 | |||
139 | |||
140 | static void * | ||
141 | notify_connect (void *cls, | ||
142 | const struct GNUNET_PeerIdentity *peer, | ||
143 | struct GNUNET_MQ_Handle *mq) | ||
144 | { | ||
145 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p = cls; | ||
146 | struct GNUNET_TRANSPORT_TESTING_Handle *tth = p->tth; | ||
147 | char *p2_s; | ||
148 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p2; | ||
149 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cc; | ||
150 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *ccn; | ||
151 | int found; | ||
152 | void *ret; | ||
153 | |||
154 | p2 = find_peer_context (p->tth, | ||
155 | peer); | ||
156 | if (NULL != p->nc) | ||
157 | ret = p->nc (p->cb_cls, | ||
158 | peer, | ||
159 | mq); | ||
160 | else | ||
161 | ret = NULL; | ||
162 | |||
163 | if (NULL != p2) | ||
164 | GNUNET_asprintf (&p2_s, | ||
165 | "%u (`%s')", | ||
166 | p2->no, | ||
167 | GNUNET_i2s (&p2->id)); | ||
168 | else | ||
169 | GNUNET_asprintf (&p2_s, | ||
170 | "`%s'", | ||
171 | GNUNET_i2s (peer)); | ||
172 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
173 | "Peers %s connected to peer %u (`%s')\n", | ||
174 | p2_s, | ||
175 | p->no, | ||
176 | GNUNET_i2s (&p->id)); | ||
177 | GNUNET_free (p2_s); | ||
178 | /* update flags in connecting contexts */ | ||
179 | found = GNUNET_NO; | ||
180 | GNUNET_TRANSPORT_TESTING_find_connecting_context (p, | ||
181 | p2, | ||
182 | &set_p1c, | ||
183 | &found); | ||
184 | if (GNUNET_NO == found) | ||
185 | { | ||
186 | cc = GNUNET_new (struct GNUNET_TRANSPORT_TESTING_ConnectRequest); | ||
187 | cc->p1 = p; | ||
188 | cc->p2 = p2; | ||
189 | cc->p1_c = GNUNET_YES; | ||
190 | GNUNET_CONTAINER_DLL_insert (tth->cc_head, | ||
191 | tth->cc_tail, | ||
192 | cc); | ||
193 | } | ||
194 | found = GNUNET_NO; | ||
195 | GNUNET_TRANSPORT_TESTING_find_connecting_context (p2, | ||
196 | p, | ||
197 | &set_p2c, | ||
198 | &found); | ||
199 | if (GNUNET_NO == found) | ||
200 | { | ||
201 | cc = GNUNET_new (struct GNUNET_TRANSPORT_TESTING_ConnectRequest); | ||
202 | cc->p1 = p2; | ||
203 | cc->p2 = p; | ||
204 | cc->p1_c = GNUNET_YES; | ||
205 | GNUNET_CONTAINER_DLL_insert (tth->cc_head, | ||
206 | tth->cc_tail, | ||
207 | cc); | ||
208 | } | ||
209 | GNUNET_TRANSPORT_TESTING_find_connecting_context (p, | ||
210 | p2, | ||
211 | &set_mq, | ||
212 | mq); | ||
213 | /* update set connected flag for all requests */ | ||
214 | for (cc = tth->cc_head; NULL != cc; cc = cc->next) | ||
215 | { | ||
216 | if (GNUNET_YES == cc->connected) | ||
217 | continue; | ||
218 | if ((GNUNET_YES == cc->p1_c) && | ||
219 | (GNUNET_YES == cc->p2_c)) | ||
220 | { | ||
221 | cc->connected = GNUNET_YES; | ||
222 | /* stop trying to connect */ | ||
223 | if (NULL != cc->tct) | ||
224 | { | ||
225 | GNUNET_SCHEDULER_cancel (cc->tct); | ||
226 | cc->tct = NULL; | ||
227 | } | ||
228 | if (NULL != cc->ah_sh) | ||
229 | { | ||
230 | GNUNET_TRANSPORT_application_suggest_cancel (cc->ah_sh); | ||
231 | cc->ah_sh = NULL; | ||
232 | } | ||
233 | } | ||
234 | } | ||
235 | /* then notify application */ | ||
236 | for (cc = tth->cc_head; NULL != cc; cc = ccn) | ||
237 | { | ||
238 | ccn = cc->next; | ||
239 | if ((GNUNET_YES == cc->connected) && | ||
240 | (NULL != cc->cb)) | ||
241 | { | ||
242 | cc->cb (cc->cb_cls); | ||
243 | cc->cb = NULL; /* only notify once! */ | ||
244 | } | ||
245 | } | ||
246 | return ret; | ||
247 | } | ||
248 | |||
249 | |||
250 | static void | ||
251 | notify_disconnect (void *cls, | ||
252 | const struct GNUNET_PeerIdentity *peer, | ||
253 | void *handler_cls) | ||
254 | { | ||
255 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p = cls; | ||
256 | struct GNUNET_TRANSPORT_TESTING_Handle *tth = p->tth; | ||
257 | char *p2_s; | ||
258 | /* Find PeerContext */ | ||
259 | int no = 0; | ||
260 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p2 = NULL; | ||
261 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cc; | ||
262 | |||
263 | p2 = find_peer_context (p->tth, | ||
264 | peer); | ||
265 | no = p->no; | ||
266 | if (NULL != p2) | ||
267 | GNUNET_asprintf (&p2_s, | ||
268 | "%u (`%s')", | ||
269 | p2->no, | ||
270 | GNUNET_i2s (&p2->id)); | ||
271 | else | ||
272 | GNUNET_asprintf (&p2_s, | ||
273 | "`%s'", | ||
274 | GNUNET_i2s (peer)); | ||
275 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
276 | "Peers %s disconnected from peer %u (`%s')\n", | ||
277 | p2_s, | ||
278 | no, | ||
279 | GNUNET_i2s (&p->id)); | ||
280 | GNUNET_free (p2_s); | ||
281 | /* notify about disconnect */ | ||
282 | if (NULL != p->nd) | ||
283 | p->nd (p->cb_cls, | ||
284 | peer, | ||
285 | handler_cls); | ||
286 | if (NULL == p2) | ||
287 | return; | ||
288 | /* clear MQ, it is now invalid */ | ||
289 | GNUNET_TRANSPORT_TESTING_find_connecting_context (p, | ||
290 | p2, | ||
291 | &set_mq, | ||
292 | NULL); | ||
293 | /* update set connected flags for all requests */ | ||
294 | GNUNET_TRANSPORT_TESTING_find_connecting_context (p, | ||
295 | p2, | ||
296 | &clear_p1c, | ||
297 | NULL); | ||
298 | GNUNET_TRANSPORT_TESTING_find_connecting_context (p2, | ||
299 | p, | ||
300 | &clear_p2c, | ||
301 | NULL); | ||
302 | /* resume connectivity requests as necessary */ | ||
303 | for (cc = tth->cc_head; NULL != cc; cc = cc->next) | ||
304 | { | ||
305 | if (GNUNET_NO == cc->connected) | ||
306 | continue; | ||
307 | if ((GNUNET_YES != cc->p1_c) || | ||
308 | (GNUNET_YES != cc->p2_c)) | ||
309 | { | ||
310 | cc->connected = GNUNET_NO; | ||
311 | /* start trying to connect */ | ||
312 | if (NULL == cc->ah_sh) | ||
313 | cc->ah_sh = GNUNET_TRANSPORT_application_suggest (cc->p1->ah, | ||
314 | &p2->id, | ||
315 | GNUNET_MQ_PRIO_BEST_EFFORT, | ||
316 | GNUNET_BANDWIDTH_ZERO); | ||
317 | } | ||
318 | } | ||
319 | } | ||
320 | |||
321 | |||
322 | static void | ||
323 | retrieve_hello (void *cls); | ||
324 | |||
325 | static void | ||
326 | hello_iter_cb (void *cb_cls, | ||
327 | const struct GNUNET_PEERSTORE_Record *record, | ||
328 | const char *emsg) | ||
329 | { | ||
330 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p = cb_cls; | ||
331 | if (NULL == record) | ||
332 | { | ||
333 | p->pic = NULL; | ||
334 | if (NULL != p->start_cb) | ||
335 | p->rh_task = GNUNET_SCHEDULER_add_now (retrieve_hello, p); | ||
336 | return; | ||
337 | } | ||
338 | // Check record type et al? | ||
339 | p->hello_size = record->value_size; | ||
340 | p->hello = GNUNET_malloc (p->hello_size); | ||
341 | memcpy (p->hello, record->value, p->hello_size); | ||
342 | p->hello[p->hello_size - 1] = '\0'; | ||
343 | |||
344 | GNUNET_PEERSTORE_iteration_stop (p->pic); | ||
345 | p->pic = NULL; | ||
346 | if (NULL != p->start_cb) | ||
347 | { | ||
348 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
349 | "Peer %u (`%s') successfully started\n", | ||
350 | p->no, | ||
351 | GNUNET_i2s (&p->id)); | ||
352 | p->start_cb (p->start_cb_cls); | ||
353 | p->start_cb = NULL; | ||
354 | } | ||
355 | } | ||
356 | |||
357 | |||
358 | static void | ||
359 | retrieve_hello (void *cls) | ||
360 | { | ||
361 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p = cls; | ||
362 | p->rh_task = NULL; | ||
363 | p->pic = GNUNET_PEERSTORE_iteration_start (p->ph, | ||
364 | "transport", | ||
365 | &p->id, | ||
366 | GNUNET_PEERSTORE_TRANSPORT_HELLO_KEY, | ||
367 | hello_iter_cb, | ||
368 | p); | ||
369 | |||
370 | } | ||
371 | |||
372 | |||
373 | struct GNUNET_TRANSPORT_TESTING_PeerContext * | ||
374 | GNUNET_TRANSPORT_TESTING_start_peer (struct | ||
375 | GNUNET_TRANSPORT_TESTING_Handle *tth, | ||
376 | const char *cfgname, | ||
377 | int peer_id, | ||
378 | const struct | ||
379 | GNUNET_MQ_MessageHandler *handlers, | ||
380 | GNUNET_TRANSPORT_NotifyConnect nc, | ||
381 | GNUNET_TRANSPORT_NotifyDisconnect nd, | ||
382 | void *cb_cls, | ||
383 | GNUNET_SCHEDULER_TaskCallback start_cb, | ||
384 | void *start_cb_cls) | ||
385 | { | ||
386 | char *emsg = NULL; | ||
387 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p; | ||
388 | struct GNUNET_PeerIdentity dummy; | ||
389 | unsigned int i; | ||
390 | |||
391 | if (GNUNET_NO == GNUNET_DISK_file_test (cfgname)) | ||
392 | { | ||
393 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
394 | "File not found: `%s'\n", | ||
395 | cfgname); | ||
396 | return NULL; | ||
397 | } | ||
398 | |||
399 | p = GNUNET_new (struct GNUNET_TRANSPORT_TESTING_PeerContext); | ||
400 | p->tth = tth; | ||
401 | p->nc = nc; | ||
402 | p->nd = nd; | ||
403 | if (NULL != handlers) | ||
404 | { | ||
405 | for (i = 0; NULL != handlers[i].cb; i++) | ||
406 | ; | ||
407 | p->handlers = GNUNET_new_array (i + 1, | ||
408 | struct GNUNET_MQ_MessageHandler); | ||
409 | GNUNET_memcpy (p->handlers, | ||
410 | handlers, | ||
411 | i * sizeof(struct GNUNET_MQ_MessageHandler)); | ||
412 | } | ||
413 | if (NULL != cb_cls) | ||
414 | p->cb_cls = cb_cls; | ||
415 | else | ||
416 | p->cb_cls = p; | ||
417 | p->start_cb = start_cb; | ||
418 | if (NULL != start_cb_cls) | ||
419 | p->start_cb_cls = start_cb_cls; | ||
420 | else | ||
421 | p->start_cb_cls = p; | ||
422 | GNUNET_CONTAINER_DLL_insert (tth->p_head, | ||
423 | tth->p_tail, | ||
424 | p); | ||
425 | |||
426 | /* Create configuration and call testing lib to modify it */ | ||
427 | p->cfg = GNUNET_CONFIGURATION_create (); | ||
428 | GNUNET_assert (GNUNET_OK == | ||
429 | GNUNET_CONFIGURATION_load (p->cfg, cfgname)); | ||
430 | if (GNUNET_SYSERR == | ||
431 | GNUNET_TESTING_configuration_create (tth->tl_system, | ||
432 | p->cfg)) | ||
433 | { | ||
434 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
435 | "Testing library failed to create unique configuration based on `%s'\n", | ||
436 | cfgname); | ||
437 | GNUNET_CONFIGURATION_destroy (p->cfg); | ||
438 | GNUNET_free (p); | ||
439 | return NULL; | ||
440 | } | ||
441 | |||
442 | p->no = peer_id; | ||
443 | /* Configure peer with configuration */ | ||
444 | p->peer = GNUNET_TESTING_peer_configure (tth->tl_system, | ||
445 | p->cfg, | ||
446 | p->no, | ||
447 | NULL, | ||
448 | &emsg); | ||
449 | if (NULL == p->peer) | ||
450 | { | ||
451 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
452 | "Testing library failed to create unique configuration based on `%s': `%s'\n", | ||
453 | cfgname, | ||
454 | emsg); | ||
455 | GNUNET_TRANSPORT_TESTING_stop_peer (p); | ||
456 | GNUNET_free (emsg); | ||
457 | return NULL; | ||
458 | } | ||
459 | |||
460 | if (GNUNET_OK != GNUNET_TESTING_peer_start (p->peer)) | ||
461 | { | ||
462 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
463 | "Testing library failed to create unique configuration based on `%s'\n", | ||
464 | cfgname); | ||
465 | GNUNET_TRANSPORT_TESTING_stop_peer (p); | ||
466 | return NULL; | ||
467 | } | ||
468 | |||
469 | memset (&dummy, | ||
470 | '\0', | ||
471 | sizeof(dummy)); | ||
472 | GNUNET_TESTING_peer_get_identity (p->peer, | ||
473 | &p->id); | ||
474 | if (0 == memcmp (&dummy, | ||
475 | &p->id, | ||
476 | sizeof(struct GNUNET_PeerIdentity))) | ||
477 | { | ||
478 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
479 | "Testing library failed to obtain peer identity for peer %u\n", | ||
480 | p->no); | ||
481 | GNUNET_TRANSPORT_TESTING_stop_peer (p); | ||
482 | return NULL; | ||
483 | } | ||
484 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
485 | "Peer %u configured with identity `%s'\n", | ||
486 | p->no, | ||
487 | GNUNET_i2s_full (&p->id)); | ||
488 | p->th = GNUNET_TRANSPORT_core_connect (p->cfg, | ||
489 | NULL, | ||
490 | handlers, | ||
491 | p, | ||
492 | ¬ify_connect, | ||
493 | ¬ify_disconnect); | ||
494 | if (NULL == p->th) | ||
495 | { | ||
496 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
497 | "Failed to connect to transport service for peer `%s': `%s'\n", | ||
498 | cfgname, | ||
499 | emsg); | ||
500 | GNUNET_TRANSPORT_TESTING_stop_peer (p); | ||
501 | GNUNET_free (emsg); | ||
502 | return NULL; | ||
503 | } | ||
504 | p->ah = GNUNET_TRANSPORT_application_init (p->cfg); | ||
505 | if (NULL == p->ah) | ||
506 | { | ||
507 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
508 | "Failed to connect to TNG service for peer `%s': `%s'\n", | ||
509 | cfgname, | ||
510 | emsg); | ||
511 | GNUNET_TRANSPORT_TESTING_stop_peer (p); | ||
512 | GNUNET_free (emsg); | ||
513 | return NULL; | ||
514 | } | ||
515 | p->ph = GNUNET_PEERSTORE_connect (p->cfg); | ||
516 | // FIXME Error handling | ||
517 | p->rh_task = GNUNET_SCHEDULER_add_now (retrieve_hello, p); | ||
518 | |||
519 | return p; | ||
520 | } | ||
521 | |||
522 | |||
523 | int | ||
524 | GNUNET_TRANSPORT_TESTING_restart_peer (struct | ||
525 | GNUNET_TRANSPORT_TESTING_PeerContext *p, | ||
526 | GNUNET_SCHEDULER_TaskCallback restart_cb, | ||
527 | void *restart_cb_cls) | ||
528 | { | ||
529 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cc; | ||
530 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *ccn; | ||
531 | |||
532 | /* shutdown */ | ||
533 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
534 | "Stopping peer %u (`%s')\n", | ||
535 | p->no, | ||
536 | GNUNET_i2s (&p->id)); | ||
537 | if (NULL != p->pic) | ||
538 | { | ||
539 | GNUNET_PEERSTORE_iteration_stop (p->pic); | ||
540 | p->pic = NULL; | ||
541 | } | ||
542 | if (NULL != p->th) | ||
543 | { | ||
544 | GNUNET_TRANSPORT_core_disconnect (p->th); | ||
545 | p->th = NULL; | ||
546 | } | ||
547 | for (cc = p->tth->cc_head; NULL != cc; cc = ccn) | ||
548 | { | ||
549 | ccn = cc->next; | ||
550 | if ((cc->p1 == p) || | ||
551 | (cc->p2 == p)) | ||
552 | GNUNET_TRANSPORT_TESTING_connect_peers_cancel (cc); | ||
553 | } | ||
554 | if (NULL != p->ah) | ||
555 | { | ||
556 | GNUNET_TRANSPORT_application_done (p->ah); | ||
557 | p->ah = NULL; | ||
558 | } | ||
559 | if (GNUNET_SYSERR == | ||
560 | GNUNET_TESTING_peer_stop (p->peer)) | ||
561 | { | ||
562 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
563 | "Failed to stop peer %u (`%s')\n", | ||
564 | p->no, | ||
565 | GNUNET_i2s (&p->id)); | ||
566 | return GNUNET_SYSERR; | ||
567 | } | ||
568 | |||
569 | sleep (5); // YUCK! | ||
570 | |||
571 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
572 | "Restarting peer %u (`%s')\n", | ||
573 | p->no, | ||
574 | GNUNET_i2s (&p->id)); | ||
575 | /* restart */ | ||
576 | if (GNUNET_SYSERR == GNUNET_TESTING_peer_start (p->peer)) | ||
577 | { | ||
578 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
579 | "Failed to restart peer %u (`%s')\n", | ||
580 | p->no, | ||
581 | GNUNET_i2s (&p->id)); | ||
582 | return GNUNET_SYSERR; | ||
583 | } | ||
584 | |||
585 | GNUNET_assert (NULL == p->start_cb); | ||
586 | p->start_cb = restart_cb; | ||
587 | p->start_cb_cls = restart_cb_cls; | ||
588 | |||
589 | p->th = GNUNET_TRANSPORT_core_connect (p->cfg, | ||
590 | NULL, | ||
591 | p->handlers, | ||
592 | p, | ||
593 | ¬ify_connect, | ||
594 | ¬ify_disconnect); | ||
595 | GNUNET_assert (NULL != p->th); | ||
596 | p->ah = GNUNET_TRANSPORT_application_init (p->cfg); | ||
597 | p->pic = GNUNET_PEERSTORE_iteration_start (p->ph, | ||
598 | "transport", | ||
599 | &p->id, | ||
600 | GNUNET_PEERSTORE_TRANSPORT_HELLO_KEY, | ||
601 | hello_iter_cb, | ||
602 | p); | ||
603 | GNUNET_assert (NULL != p->pic); | ||
604 | return GNUNET_OK; | ||
605 | } | ||
606 | |||
607 | |||
608 | /** | ||
609 | * Shutdown the given peer | ||
610 | * | ||
611 | * @param p the peer | ||
612 | */ | ||
613 | void | ||
614 | GNUNET_TRANSPORT_TESTING_stop_peer (struct | ||
615 | GNUNET_TRANSPORT_TESTING_PeerContext *p) | ||
616 | { | ||
617 | struct GNUNET_TRANSPORT_TESTING_Handle *tth = p->tth; | ||
618 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cc; | ||
619 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *ccn; | ||
620 | /* shutdown */ | ||
621 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
622 | "Stopping peer %u (`%s')\n", | ||
623 | p->no, | ||
624 | GNUNET_i2s (&p->id)); | ||
625 | |||
626 | for (cc = tth->cc_head; NULL != cc; cc = ccn) | ||
627 | { | ||
628 | ccn = cc->next; | ||
629 | if ((cc->p1 == p) || | ||
630 | (cc->p2 == p)) | ||
631 | GNUNET_TRANSPORT_TESTING_connect_peers_cancel (cc); | ||
632 | } | ||
633 | if (NULL != p->pic) | ||
634 | { | ||
635 | GNUNET_PEERSTORE_iteration_stop (p->pic); | ||
636 | p->pic = NULL; | ||
637 | } | ||
638 | if (NULL != p->th) | ||
639 | { | ||
640 | GNUNET_TRANSPORT_core_disconnect (p->th); | ||
641 | p->th = NULL; | ||
642 | } | ||
643 | if (NULL != p->ah) | ||
644 | { | ||
645 | GNUNET_TRANSPORT_application_done (p->ah); | ||
646 | p->ah = NULL; | ||
647 | } | ||
648 | if (NULL != p->ph) | ||
649 | { | ||
650 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
651 | "Disconnecting from PEERSTORE service\n"); | ||
652 | GNUNET_PEERSTORE_disconnect (p->ph); | ||
653 | p->ph = NULL; | ||
654 | } | ||
655 | |||
656 | if (NULL != p->peer) | ||
657 | { | ||
658 | if (GNUNET_OK != | ||
659 | GNUNET_TESTING_peer_stop (p->peer)) | ||
660 | { | ||
661 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
662 | "Testing lib failed to stop peer %u (`%s')\n", | ||
663 | p->no, | ||
664 | GNUNET_i2s (&p->id)); | ||
665 | } | ||
666 | GNUNET_TESTING_peer_destroy (p->peer); | ||
667 | p->peer = NULL; | ||
668 | } | ||
669 | if (NULL != p->hello) | ||
670 | { | ||
671 | GNUNET_free (p->hello); | ||
672 | p->hello = NULL; | ||
673 | } | ||
674 | if (NULL != p->cfg) | ||
675 | { | ||
676 | GNUNET_CONFIGURATION_destroy (p->cfg); | ||
677 | p->cfg = NULL; | ||
678 | } | ||
679 | if (NULL != p->handlers) | ||
680 | { | ||
681 | GNUNET_free (p->handlers); | ||
682 | p->handlers = NULL; | ||
683 | } | ||
684 | GNUNET_CONTAINER_DLL_remove (tth->p_head, | ||
685 | tth->p_tail, | ||
686 | p); | ||
687 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
688 | "Peer %u (`%s') stopped\n", | ||
689 | p->no, | ||
690 | GNUNET_i2s (&p->id)); | ||
691 | if (NULL != p->rh_task) | ||
692 | GNUNET_SCHEDULER_cancel (p->rh_task); | ||
693 | p->rh_task = NULL; | ||
694 | GNUNET_free (p); | ||
695 | } | ||
696 | |||
697 | |||
698 | /** | ||
699 | * Function called after the HELLO was passed to the | ||
700 | * transport service. | ||
701 | * FIXME maybe schedule the application_validate somehow | ||
702 | */ | ||
703 | /* | ||
704 | static void | ||
705 | hello_offered (void *cls) | ||
706 | { | ||
707 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cc = cls; | ||
708 | |||
709 | cc->oh = NULL; | ||
710 | cc->tct = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS, | ||
711 | &offer_hello, | ||
712 | cc); | ||
713 | }*/ | ||
714 | |||
715 | |||
716 | /** | ||
717 | * Initiate a connection from p1 to p2 by offering p1 p2's HELLO message | ||
718 | * | ||
719 | * Remarks: start_peer's notify_connect callback can be called before. | ||
720 | * | ||
721 | * @param tth transport testing handle | ||
722 | * @param p1 peer 1 | ||
723 | * @param p2 peer 2 | ||
724 | * @param cb the callback to call when both peers notified that they are connected | ||
725 | * @param cls callback cls | ||
726 | * @return a connect request handle | ||
727 | */ | ||
728 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest * | ||
729 | GNUNET_TRANSPORT_TESTING_connect_peers (struct | ||
730 | GNUNET_TRANSPORT_TESTING_PeerContext *p1, | ||
731 | struct | ||
732 | GNUNET_TRANSPORT_TESTING_PeerContext *p2, | ||
733 | GNUNET_SCHEDULER_TaskCallback cb, | ||
734 | void *cls) | ||
735 | { | ||
736 | struct GNUNET_TRANSPORT_TESTING_Handle *tth = p1->tth; | ||
737 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cc; | ||
738 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *ccn; | ||
739 | |||
740 | ccn = NULL; | ||
741 | for (cc = tth->cc_head; NULL != cc; cc = cc->next) | ||
742 | { | ||
743 | if ((cc->p1 == p1) && | ||
744 | (cc->p2 == p2)) | ||
745 | { | ||
746 | ccn = cc; | ||
747 | break; | ||
748 | } | ||
749 | } | ||
750 | |||
751 | cc = GNUNET_new (struct GNUNET_TRANSPORT_TESTING_ConnectRequest); | ||
752 | cc->p1 = p1; | ||
753 | cc->p2 = p2; | ||
754 | cc->cb = cb; | ||
755 | if (NULL != cls) | ||
756 | cc->cb_cls = cls; | ||
757 | else | ||
758 | cc->cb_cls = cc; | ||
759 | if (NULL != ccn) | ||
760 | { | ||
761 | cc->p1_c = ccn->p1_c; | ||
762 | cc->p2_c = ccn->p2_c; | ||
763 | cc->connected = ccn->connected; | ||
764 | } | ||
765 | GNUNET_CONTAINER_DLL_insert (tth->cc_head, | ||
766 | tth->cc_tail, | ||
767 | cc); | ||
768 | cc->ah_sh = GNUNET_TRANSPORT_application_suggest (cc->p1->ah, | ||
769 | &p2->id, | ||
770 | GNUNET_MQ_PRIO_BEST_EFFORT, | ||
771 | GNUNET_BANDWIDTH_ZERO); | ||
772 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
773 | "New connect request %p\n", | ||
774 | cc); | ||
775 | return cc; | ||
776 | } | ||
777 | |||
778 | |||
779 | void | ||
780 | GNUNET_TRANSPORT_TESTING_connect_peers_cancel (struct | ||
781 | GNUNET_TRANSPORT_TESTING_ConnectRequest | ||
782 | *cc) | ||
783 | { | ||
784 | struct GNUNET_TRANSPORT_TESTING_Handle *tth = cc->p1->tth; | ||
785 | |||
786 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
787 | "Canceling connect request!\n"); | ||
788 | if (NULL != cc->tct) | ||
789 | { | ||
790 | GNUNET_SCHEDULER_cancel (cc->tct); | ||
791 | cc->tct = NULL; | ||
792 | } | ||
793 | if (NULL != cc->ah_sh) | ||
794 | { | ||
795 | GNUNET_TRANSPORT_application_suggest_cancel (cc->ah_sh); | ||
796 | cc->ah_sh = NULL; | ||
797 | } | ||
798 | GNUNET_CONTAINER_DLL_remove (tth->cc_head, | ||
799 | tth->cc_tail, | ||
800 | cc); | ||
801 | GNUNET_free (cc); | ||
802 | } | ||
803 | |||
804 | |||
805 | /** | ||
806 | * Clean up the transport testing | ||
807 | * | ||
808 | * @param tth transport testing handle | ||
809 | */ | ||
810 | void | ||
811 | GNUNET_TRANSPORT_TESTING_done (struct GNUNET_TRANSPORT_TESTING_Handle *tth) | ||
812 | { | ||
813 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cc; | ||
814 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *ct; | ||
815 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p; | ||
816 | struct GNUNET_TRANSPORT_TESTING_PeerContext *t; | ||
817 | |||
818 | if (NULL == tth) | ||
819 | return; | ||
820 | cc = tth->cc_head; | ||
821 | while (NULL != cc) | ||
822 | { | ||
823 | ct = cc->next; | ||
824 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
825 | "Developer forgot to cancel connect request!\n"); | ||
826 | GNUNET_TRANSPORT_TESTING_connect_peers_cancel (cc); | ||
827 | cc = ct; | ||
828 | } | ||
829 | p = tth->p_head; | ||
830 | while (NULL != p) | ||
831 | { | ||
832 | t = p->next; | ||
833 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
834 | "Developer forgot to stop peer!\n"); | ||
835 | GNUNET_TRANSPORT_TESTING_stop_peer (p); | ||
836 | p = t; | ||
837 | } | ||
838 | GNUNET_TESTING_system_destroy (tth->tl_system, | ||
839 | GNUNET_YES); | ||
840 | |||
841 | GNUNET_free (tth); | ||
842 | } | ||
843 | |||
844 | |||
845 | /** | ||
846 | * Initialize the transport testing | ||
847 | * | ||
848 | * @return transport testing handle | ||
849 | */ | ||
850 | struct GNUNET_TRANSPORT_TESTING_Handle * | ||
851 | GNUNET_TRANSPORT_TESTING_init () | ||
852 | { | ||
853 | struct GNUNET_TRANSPORT_TESTING_Handle *tth; | ||
854 | |||
855 | tth = GNUNET_new (struct GNUNET_TRANSPORT_TESTING_Handle); | ||
856 | tth->tl_system = GNUNET_TESTING_system_create ("transport-testing", | ||
857 | NULL, | ||
858 | NULL, | ||
859 | NULL); | ||
860 | if (NULL == tth->tl_system) | ||
861 | { | ||
862 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
863 | "Failed to initialize testing library!\n"); | ||
864 | GNUNET_free (tth); | ||
865 | return NULL; | ||
866 | } | ||
867 | return tth; | ||
868 | } | ||
869 | |||
870 | |||
871 | /* end of transport-testing.c */ | ||
diff --git a/src/service/transport/transport-testing2.h b/src/service/transport/transport-testing2.h new file mode 100644 index 000000000..a68c9df38 --- /dev/null +++ b/src/service/transport/transport-testing2.h | |||
@@ -0,0 +1,940 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2006, 2009, 2015, 2016 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport-testing.h | ||
23 | * @brief testing lib for transport service | ||
24 | * @author Matthias Wachs | ||
25 | * @author Christian Grothoff | ||
26 | */ | ||
27 | #ifndef TRANSPORT_TESTING_H | ||
28 | #define TRANSPORT_TESTING_H | ||
29 | #include "platform.h" | ||
30 | #include "gnunet_util_lib.h" | ||
31 | #include "gnunet_peerstore_service.h" | ||
32 | #include "gnunet_transport_core_service.h" | ||
33 | #include "gnunet_transport_application_service.h" | ||
34 | #include "gnunet_testing_lib.h" | ||
35 | |||
36 | |||
37 | /* ************* Basic functions for starting/stopping/connecting *********** */ | ||
38 | |||
39 | /** | ||
40 | * Context for a single peer | ||
41 | */ | ||
42 | struct GNUNET_TRANSPORT_TESTING_PeerContext; | ||
43 | |||
44 | /** | ||
45 | * Definition for a transport testing handle | ||
46 | */ | ||
47 | struct GNUNET_TRANSPORT_TESTING_Handle; | ||
48 | |||
49 | |||
50 | /** | ||
51 | * Context for a single peer | ||
52 | */ | ||
53 | struct GNUNET_TRANSPORT_TESTING_PeerContext | ||
54 | { | ||
55 | /** | ||
56 | * Next element in the DLL | ||
57 | */ | ||
58 | struct GNUNET_TRANSPORT_TESTING_PeerContext *next; | ||
59 | |||
60 | /** | ||
61 | * Previous element in the DLL | ||
62 | */ | ||
63 | struct GNUNET_TRANSPORT_TESTING_PeerContext *prev; | ||
64 | |||
65 | /** | ||
66 | * Transport testing handle this peer belongs to | ||
67 | */ | ||
68 | struct GNUNET_TRANSPORT_TESTING_Handle *tth; | ||
69 | |||
70 | /** | ||
71 | * Application handle | ||
72 | */ | ||
73 | struct GNUNET_TRANSPORT_ApplicationHandle *ah; | ||
74 | |||
75 | /** | ||
76 | * Peer's configuration | ||
77 | */ | ||
78 | struct GNUNET_CONFIGURATION_Handle *cfg; | ||
79 | |||
80 | /** | ||
81 | * Peer's transport service handle | ||
82 | */ | ||
83 | struct GNUNET_TRANSPORT_CoreHandle *th; | ||
84 | |||
85 | /** | ||
86 | * Peer's PEERSTORE Handle | ||
87 | */ | ||
88 | struct GNUNET_PEERSTORE_Handle *ph; | ||
89 | |||
90 | /** | ||
91 | * Peer's transport get hello handle to retrieve peer's HELLO message | ||
92 | */ | ||
93 | struct GNUNET_PEERSTORE_IterateContext *pic; | ||
94 | |||
95 | /** | ||
96 | * Hello | ||
97 | */ | ||
98 | char *hello; | ||
99 | |||
100 | /** | ||
101 | * Hello size | ||
102 | */ | ||
103 | size_t hello_size; | ||
104 | |||
105 | /** | ||
106 | * Peer's testing handle | ||
107 | */ | ||
108 | struct GNUNET_TESTING_Peer *peer; | ||
109 | |||
110 | /** | ||
111 | * Peer identity | ||
112 | */ | ||
113 | struct GNUNET_PeerIdentity id; | ||
114 | |||
115 | /** | ||
116 | * Handle for the peer's ARM process | ||
117 | */ | ||
118 | struct GNUNET_OS_Process *arm_proc; | ||
119 | |||
120 | /** | ||
121 | * Receive callback | ||
122 | */ | ||
123 | struct GNUNET_MQ_MessageHandler *handlers; | ||
124 | |||
125 | /** | ||
126 | * Notify connect callback | ||
127 | */ | ||
128 | GNUNET_TRANSPORT_NotifyConnect nc; | ||
129 | |||
130 | /** | ||
131 | * Notify disconnect callback | ||
132 | */ | ||
133 | GNUNET_TRANSPORT_NotifyDisconnect nd; | ||
134 | |||
135 | /** | ||
136 | * Startup completed callback | ||
137 | */ | ||
138 | GNUNET_SCHEDULER_TaskCallback start_cb; | ||
139 | |||
140 | /** | ||
141 | * Hello get task | ||
142 | */ | ||
143 | struct GNUNET_SCHEDULER_Task *rh_task; | ||
144 | |||
145 | /** | ||
146 | * Closure for the @a nc and @a nd callbacks | ||
147 | */ | ||
148 | void *cb_cls; | ||
149 | |||
150 | /** | ||
151 | * Closure for @e start_cb. | ||
152 | */ | ||
153 | void *start_cb_cls; | ||
154 | |||
155 | /** | ||
156 | * An unique number to identify the peer | ||
157 | */ | ||
158 | unsigned int no; | ||
159 | }; | ||
160 | |||
161 | |||
162 | /** | ||
163 | * Handle for a request to connect two peers. | ||
164 | */ | ||
165 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest | ||
166 | { | ||
167 | /** | ||
168 | * Kept in a DLL. | ||
169 | */ | ||
170 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *next; | ||
171 | |||
172 | /** | ||
173 | * Kept in a DLL. | ||
174 | */ | ||
175 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *prev; | ||
176 | |||
177 | /** | ||
178 | * Peer we want to connect. | ||
179 | */ | ||
180 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p1; | ||
181 | |||
182 | /** | ||
183 | * Peer we want to connect. | ||
184 | */ | ||
185 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p2; | ||
186 | |||
187 | /** | ||
188 | * Task by which we accomplish the connection. | ||
189 | */ | ||
190 | struct GNUNET_SCHEDULER_Task *tct; | ||
191 | |||
192 | /** | ||
193 | * Handle by which we ask TNG to facilitate the connection. | ||
194 | */ | ||
195 | struct GNUNET_TRANSPORT_ApplicationSuggestHandle *ah_sh; | ||
196 | |||
197 | /** | ||
198 | * Function to call upon completion. | ||
199 | */ | ||
200 | GNUNET_SCHEDULER_TaskCallback cb; | ||
201 | |||
202 | /** | ||
203 | * Closure for @e cb. | ||
204 | */ | ||
205 | void *cb_cls; | ||
206 | |||
207 | /** | ||
208 | * Message queue for sending from @a p1 to @a p2. | ||
209 | */ | ||
210 | struct GNUNET_MQ_Handle *mq; | ||
211 | |||
212 | /** | ||
213 | * Set if peer1 says the connection is up to peer2. | ||
214 | */ | ||
215 | int p1_c; | ||
216 | |||
217 | /** | ||
218 | * Set if peer2 says the connection is up to peer1. | ||
219 | */ | ||
220 | int p2_c; | ||
221 | |||
222 | /** | ||
223 | * #GNUNET_YES if both @e p1_c and @e p2_c are #GNUNET_YES. | ||
224 | */ | ||
225 | int connected; | ||
226 | }; | ||
227 | |||
228 | |||
229 | /** | ||
230 | * Handle for a test run. | ||
231 | */ | ||
232 | struct GNUNET_TRANSPORT_TESTING_Handle | ||
233 | { | ||
234 | /** | ||
235 | * Testing library system handle | ||
236 | */ | ||
237 | struct GNUNET_TESTING_System *tl_system; | ||
238 | |||
239 | /** | ||
240 | * head DLL of connect contexts | ||
241 | */ | ||
242 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cc_head; | ||
243 | |||
244 | /** | ||
245 | * head DLL of connect contexts | ||
246 | */ | ||
247 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cc_tail; | ||
248 | |||
249 | /** | ||
250 | * head DLL of peers | ||
251 | */ | ||
252 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p_head; | ||
253 | |||
254 | /** | ||
255 | * tail DLL of peers | ||
256 | */ | ||
257 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p_tail; | ||
258 | }; | ||
259 | |||
260 | |||
261 | /** | ||
262 | * Initialize the transport testing | ||
263 | * | ||
264 | * @return transport testing handle | ||
265 | */ | ||
266 | struct GNUNET_TRANSPORT_TESTING_Handle * | ||
267 | GNUNET_TRANSPORT_TESTING_init (void); | ||
268 | |||
269 | |||
270 | /** | ||
271 | * Clean up the transport testing | ||
272 | * | ||
273 | * @param tth transport testing handle | ||
274 | */ | ||
275 | void | ||
276 | GNUNET_TRANSPORT_TESTING_done (struct GNUNET_TRANSPORT_TESTING_Handle *tth); | ||
277 | |||
278 | |||
279 | /** | ||
280 | * Start a peer with the given configuration | ||
281 | * | ||
282 | * @param tth the testing handle | ||
283 | * @param cfgname configuration file | ||
284 | * @param peer_id an identification number for the peer | ||
285 | * @param handlers functions for receiving messages | ||
286 | * @param nc connect callback | ||
287 | * @param nd disconnect callback | ||
288 | * @param cb_cls closure for @a nc and @a nd callback | ||
289 | * @param start_cb start callback | ||
290 | * @param start_cb_cls closure for @a start_cb | ||
291 | * @return the peer context | ||
292 | */ | ||
293 | struct GNUNET_TRANSPORT_TESTING_PeerContext * | ||
294 | GNUNET_TRANSPORT_TESTING_start_peer ( | ||
295 | struct GNUNET_TRANSPORT_TESTING_Handle *tth, | ||
296 | const char *cfgname, | ||
297 | int peer_id, | ||
298 | const struct GNUNET_MQ_MessageHandler *handlers, | ||
299 | GNUNET_TRANSPORT_NotifyConnect nc, | ||
300 | GNUNET_TRANSPORT_NotifyDisconnect nd, | ||
301 | void *cb_cls, | ||
302 | GNUNET_SCHEDULER_TaskCallback start_cb, | ||
303 | void *start_cb_cls); | ||
304 | |||
305 | |||
306 | /** | ||
307 | * Shutdown the given peer | ||
308 | * | ||
309 | * @param p the peer | ||
310 | */ | ||
311 | void | ||
312 | GNUNET_TRANSPORT_TESTING_stop_peer ( | ||
313 | struct GNUNET_TRANSPORT_TESTING_PeerContext *pc); | ||
314 | |||
315 | |||
316 | /** | ||
317 | * Stops and restarts the given peer, sleeping (!) for 5s in between. | ||
318 | * | ||
319 | * @param p the peer | ||
320 | * @param restart_cb restart callback | ||
321 | * @param restart_cb_cls callback closure | ||
322 | * @return #GNUNET_OK in success otherwise #GNUNET_SYSERR | ||
323 | */ | ||
324 | int | ||
325 | GNUNET_TRANSPORT_TESTING_restart_peer ( | ||
326 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p, | ||
327 | GNUNET_SCHEDULER_TaskCallback restart_cb, | ||
328 | void *restart_cb_cls); | ||
329 | |||
330 | |||
331 | /** | ||
332 | * Connect the given peers and call the callback when both peers | ||
333 | * report the inbound connection. Remarks: start_peer's notify_connect | ||
334 | * callback can be called before. | ||
335 | * | ||
336 | * @param p1 peer 1 | ||
337 | * @param p2 peer 2 | ||
338 | * @param cb the callback to call when both peers notified that they are | ||
339 | * connected | ||
340 | * @param cls callback cls | ||
341 | * @return a connect request handle | ||
342 | */ | ||
343 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest * | ||
344 | GNUNET_TRANSPORT_TESTING_connect_peers ( | ||
345 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p1, | ||
346 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p2, | ||
347 | GNUNET_SCHEDULER_TaskCallback cb, | ||
348 | void *cls); | ||
349 | |||
350 | |||
351 | /** | ||
352 | * Cancel the request to connect two peers. You MUST cancel the | ||
353 | * request if you stop the peers before the peers connected | ||
354 | * successfully. | ||
355 | * | ||
356 | * @param cc a connect request handle | ||
357 | */ | ||
358 | void | ||
359 | GNUNET_TRANSPORT_TESTING_connect_peers_cancel ( | ||
360 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cc); | ||
361 | |||
362 | |||
363 | /** | ||
364 | * Function called on matching connect requests. | ||
365 | * | ||
366 | * @param cls closure | ||
367 | * @param cc request matching the query | ||
368 | */ | ||
369 | typedef void (*GNUNET_TRANSPORT_TESTING_ConnectContextCallback) ( | ||
370 | void *cls, | ||
371 | struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cc); | ||
372 | |||
373 | |||
374 | /** | ||
375 | * Find any connecting context matching the given pair of peers. | ||
376 | * | ||
377 | * @param p1 first peer | ||
378 | * @param p2 second peer | ||
379 | * @param cb function to call | ||
380 | * @param cb_cls closure for @a cb | ||
381 | */ | ||
382 | void | ||
383 | GNUNET_TRANSPORT_TESTING_find_connecting_context ( | ||
384 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p1, | ||
385 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p2, | ||
386 | GNUNET_TRANSPORT_TESTING_ConnectContextCallback cb, | ||
387 | void *cb_cls); | ||
388 | |||
389 | |||
390 | /* ********************** high-level process functions *************** */ | ||
391 | |||
392 | |||
393 | /** | ||
394 | * Function called once the peers have been launched and | ||
395 | * connected by #GNUNET_TRANSPORT_TESTING_connect_check(). | ||
396 | * | ||
397 | * @param cls closure | ||
398 | * @param num_peers size of the @a p array | ||
399 | * @param p the peers that were launched | ||
400 | */ | ||
401 | typedef void (*GNUNET_TRANSPORT_TESTING_ConnectContinuation) ( | ||
402 | void *cls, | ||
403 | unsigned int num_peers, | ||
404 | struct GNUNET_TRANSPORT_TESTING_PeerContext *p[]); | ||
405 | |||
406 | |||
407 | /** | ||
408 | * Internal data structure. | ||
409 | */ | ||
410 | struct GNUNET_TRANSPORT_TESTING_ConnectRequestList; | ||
411 | |||
412 | /** | ||
413 | * Internal data structure. | ||
414 | */ | ||
415 | struct GNUNET_TRANSPORT_TESTING_InternalPeerContext; | ||
416 | |||
417 | |||
418 | GNUNET_NETWORK_STRUCT_BEGIN | ||
419 | struct GNUNET_TRANSPORT_TESTING_TestMessage | ||
420 | { | ||
421 | /** | ||
422 | * Type is (usually) #GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE. | ||
423 | */ | ||
424 | struct GNUNET_MessageHeader header; | ||
425 | |||
426 | /** | ||
427 | * Monotonically increasing counter throughout the test. | ||
428 | */ | ||
429 | uint32_t num GNUNET_PACKED; | ||
430 | }; | ||
431 | |||
432 | struct GNUNET_TRANSPORT_TESTING_PerformanceTestMessage | ||
433 | { | ||
434 | /** | ||
435 | * Type is (usually) #GNUNET_TRANSPORT_TESTING_SIMPLE_PERFORMANCE_MTYPE. | ||
436 | */ | ||
437 | struct GNUNET_MessageHeader header; | ||
438 | |||
439 | /** | ||
440 | * Time this message was send via transport api. | ||
441 | */ | ||
442 | struct GNUNET_TIME_AbsoluteNBO time_send; | ||
443 | |||
444 | /** | ||
445 | * Monotonically increasing counter throughout the test. | ||
446 | */ | ||
447 | uint32_t num GNUNET_PACKED; | ||
448 | }; | ||
449 | |||
450 | GNUNET_NETWORK_STRUCT_END | ||
451 | |||
452 | |||
453 | /** | ||
454 | * Function called by the transport for each received message. | ||
455 | * | ||
456 | * @param cls closure | ||
457 | * @param receiver receiver of the message | ||
458 | * @param sender sender of the message | ||
459 | * @param message the message | ||
460 | */ | ||
461 | typedef void (*GNUNET_TRANSPORT_TESTING_ReceiveCallback) ( | ||
462 | void *cls, | ||
463 | struct GNUNET_TRANSPORT_TESTING_PeerContext *receiver, | ||
464 | const struct GNUNET_PeerIdentity *sender, | ||
465 | const struct GNUNET_TRANSPORT_TESTING_TestMessage *message); | ||
466 | |||
467 | |||
468 | /** | ||
469 | * Function called to notify transport users that another | ||
470 | * peer connected to us. | ||
471 | * | ||
472 | * @param cls closure | ||
473 | * @param me peer experiencing the event | ||
474 | * @param other peer that connected to @a me | ||
475 | */ | ||
476 | typedef void (*GNUNET_TRANSPORT_TESTING_NotifyConnect) ( | ||
477 | void *cls, | ||
478 | struct GNUNET_TRANSPORT_TESTING_PeerContext *me, | ||
479 | const struct GNUNET_PeerIdentity *other); | ||
480 | |||
481 | |||
482 | /** | ||
483 | * Function called to notify transport users that another | ||
484 | * peer disconnected from us. | ||
485 | * | ||
486 | * @param cls closure | ||
487 | * @param me peer experiencing the event | ||
488 | * @param other peer that disconnected from @a me | ||
489 | */ | ||
490 | typedef void (*GNUNET_TRANSPORT_TESTING_NotifyDisconnect) ( | ||
491 | void *cls, | ||
492 | struct GNUNET_TRANSPORT_TESTING_PeerContext *me, | ||
493 | const struct GNUNET_PeerIdentity *other); | ||
494 | |||
495 | |||
496 | /** | ||
497 | * Closure that must be passed to | ||
498 | * #GNUNET_TRANSPORT_TESTING_connect_check. | ||
499 | */ | ||
500 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext | ||
501 | { | ||
502 | /** | ||
503 | * How should we continue after the connect? | ||
504 | */ | ||
505 | GNUNET_SCHEDULER_TaskCallback connect_continuation; | ||
506 | |||
507 | /** | ||
508 | * Closure for @e connect_continuation. | ||
509 | */ | ||
510 | void *connect_continuation_cls; | ||
511 | |||
512 | /** | ||
513 | * Which configuration file should we pass to the | ||
514 | * #GNUNET_PROGRAM_run() of the testcase? | ||
515 | */ | ||
516 | const char *config_file; | ||
517 | |||
518 | /** | ||
519 | * Receiver argument to give for peers we start. | ||
520 | */ | ||
521 | GNUNET_TRANSPORT_TESTING_ReceiveCallback rec; | ||
522 | |||
523 | /** | ||
524 | * Notify connect argument to give for peers we start. | ||
525 | */ | ||
526 | GNUNET_TRANSPORT_TESTING_NotifyConnect nc; | ||
527 | |||
528 | /** | ||
529 | * Notify disconnect argument to give for peers we start. | ||
530 | */ | ||
531 | GNUNET_TRANSPORT_TESTING_NotifyDisconnect nd; | ||
532 | |||
533 | /** | ||
534 | * Closure for @e rec, @e nc and @e nd. | ||
535 | */ | ||
536 | void *cls; | ||
537 | |||
538 | /** | ||
539 | * Custom task to run on shutdown. | ||
540 | */ | ||
541 | GNUNET_SCHEDULER_TaskCallback shutdown_task; | ||
542 | |||
543 | /** | ||
544 | * Closure for @e shutdown_task. | ||
545 | */ | ||
546 | void *shutdown_task_cls; | ||
547 | |||
548 | /** | ||
549 | * Custom task to run after peers were started but before we try to | ||
550 | * connect them. If this function is set, we wait ONE second after | ||
551 | * running this function until we continue with connecting the | ||
552 | * peers. | ||
553 | */ | ||
554 | GNUNET_SCHEDULER_TaskCallback pre_connect_task; | ||
555 | |||
556 | /** | ||
557 | * Closure for @e shutdown_task. | ||
558 | */ | ||
559 | void *pre_connect_task_cls; | ||
560 | |||
561 | /** | ||
562 | * When should the testcase time out? | ||
563 | */ | ||
564 | struct GNUNET_TIME_Relative timeout; | ||
565 | |||
566 | /** | ||
567 | * Should we try to create connections in both directions? | ||
568 | */ | ||
569 | int bi_directional; | ||
570 | |||
571 | /* ******* fields set by #GNUNET_TRANSPORT_TESTING_connect_check **** */ | ||
572 | |||
573 | /** | ||
574 | * Number of peers involved in the test. | ||
575 | */ | ||
576 | unsigned int num_peers; | ||
577 | |||
578 | /** | ||
579 | * Configuration files we have, array with @e num_peers entries. | ||
580 | */ | ||
581 | char **cfg_files; | ||
582 | |||
583 | /** | ||
584 | * Array with @e num_peers entries. | ||
585 | */ | ||
586 | struct GNUNET_TRANSPORT_TESTING_PeerContext **p; | ||
587 | |||
588 | /** | ||
589 | * Name of the plugin. | ||
590 | */ | ||
591 | const char *test_plugin; | ||
592 | |||
593 | /** | ||
594 | * Name of the testcase. | ||
595 | */ | ||
596 | const char *test_name; | ||
597 | |||
598 | /** | ||
599 | * Configuration object for the testcase. | ||
600 | */ | ||
601 | const struct GNUNET_CONFIGURATION_Handle *cfg; | ||
602 | |||
603 | /** | ||
604 | * Main testing handle. | ||
605 | */ | ||
606 | struct GNUNET_TRANSPORT_TESTING_Handle *tth; | ||
607 | |||
608 | /** | ||
609 | * Result from the main function, set to #GNUNET_OK on success. | ||
610 | * Clients should set to #GNUNET_SYSERR to indicate test failure. | ||
611 | */ | ||
612 | int global_ret; | ||
613 | |||
614 | /** | ||
615 | * Generator for the `num` field in test messages. Incremented each | ||
616 | * time #GNUNET_TRANSPORT_TESTING_simple_send or | ||
617 | * #GNUNET_TRANSPORT_TESTING_large_send are used to transmit a | ||
618 | * message. | ||
619 | */ | ||
620 | uint32_t send_num_gen; | ||
621 | |||
622 | /* ******* internal state, clients should not mess with this **** */ | ||
623 | |||
624 | /** | ||
625 | * Task run on timeout. | ||
626 | */ | ||
627 | struct GNUNET_SCHEDULER_Task *timeout_task; | ||
628 | |||
629 | /** | ||
630 | * Task run to connect peers. | ||
631 | */ | ||
632 | struct GNUNET_SCHEDULER_Task *connect_task; | ||
633 | |||
634 | /** | ||
635 | * Number of peers that have been started. | ||
636 | */ | ||
637 | unsigned int started; | ||
638 | |||
639 | /** | ||
640 | * DLL of active connect requests. | ||
641 | */ | ||
642 | struct GNUNET_TRANSPORT_TESTING_ConnectRequestList *crl_head; | ||
643 | |||
644 | /** | ||
645 | * DLL of active connect requests. | ||
646 | */ | ||
647 | struct GNUNET_TRANSPORT_TESTING_ConnectRequestList *crl_tail; | ||
648 | |||
649 | /** | ||
650 | * Array with @e num_peers entries. | ||
651 | */ | ||
652 | struct GNUNET_TRANSPORT_TESTING_InternalPeerContext *ip; | ||
653 | }; | ||
654 | |||
655 | |||
656 | /** | ||
657 | * Find peer by peer ID. | ||
658 | * | ||
659 | * @param ccc context to search | ||
660 | * @param peer peer to look for | ||
661 | * @return NULL if @a peer was not found | ||
662 | */ | ||
663 | struct GNUNET_TRANSPORT_TESTING_PeerContext * | ||
664 | GNUNET_TRANSPORT_TESTING_find_peer ( | ||
665 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc, | ||
666 | const struct GNUNET_PeerIdentity *peer); | ||
667 | |||
668 | |||
669 | /** | ||
670 | * Common implementation of the #GNUNET_TRANSPORT_TESTING_CheckCallback. | ||
671 | * Starts and connects the two peers, then invokes the | ||
672 | * `connect_continuation` from @a cls. Sets up a timeout to | ||
673 | * abort the test, and a shutdown handler to clean up properly | ||
674 | * on exit. | ||
675 | * | ||
676 | * @param cls closure of type `struct | ||
677 | * GNUNET_TRANSPORT_TESTING_ConnectCheckContext` | ||
678 | * @param tth_ initialized testing handle | ||
679 | * @param test_plugin_ name of the plugin | ||
680 | * @param test_name_ name of the test | ||
681 | * @param num_peers number of entries in the @a cfg_file array | ||
682 | * @param cfg_files array of names of configuration files for the peers | ||
683 | * @return #GNUNET_SYSERR on error | ||
684 | */ | ||
685 | int | ||
686 | GNUNET_TRANSPORT_TESTING_connect_check ( | ||
687 | void *cls, | ||
688 | struct GNUNET_TRANSPORT_TESTING_Handle *tth_, | ||
689 | const char *test_plugin_, | ||
690 | const char *test_name_, | ||
691 | unsigned int num_peers, | ||
692 | char *cfg_files[]); | ||
693 | |||
694 | |||
695 | /** | ||
696 | * Main function of a testcase. Called with the initial setup data | ||
697 | * for the test as derived from the source name and the binary name. | ||
698 | * | ||
699 | * @param cls closure | ||
700 | * @param tth_ initialized testing handle | ||
701 | * @param test_plugin_ name of the plugin | ||
702 | * @param test_name_ name of the test | ||
703 | * @param num_peers number of entries in the @a cfg_file array | ||
704 | * @param cfg_files array of names of configuration files for the peers | ||
705 | * @return #GNUNET_SYSERR on error | ||
706 | */ | ||
707 | typedef int (*GNUNET_TRANSPORT_TESTING_CheckCallback) ( | ||
708 | void *cls, | ||
709 | struct GNUNET_TRANSPORT_TESTING_Handle *tth_, | ||
710 | const char *test_plugin_, | ||
711 | const char *test_name_, | ||
712 | unsigned int num_peers, | ||
713 | char *cfg_files[]); | ||
714 | |||
715 | |||
716 | /** | ||
717 | * Setup testcase. Calls @a check with the data the test needs. | ||
718 | * | ||
719 | * @param argv0 binary name (argv[0]) | ||
720 | * @param filename source file name (__FILE__) | ||
721 | * @param num_peers number of peers to start | ||
722 | * @param check main function to run | ||
723 | * @param check_cls closure for @a check | ||
724 | * @return #GNUNET_OK on success | ||
725 | */ | ||
726 | int | ||
727 | GNUNET_TRANSPORT_TESTING_main_ (const char *argv0, | ||
728 | const char *filename, | ||
729 | unsigned int num_peers, | ||
730 | GNUNET_TRANSPORT_TESTING_CheckCallback check, | ||
731 | void *check_cls); | ||
732 | |||
733 | |||
734 | /** | ||
735 | * Setup testcase. Calls @a check with the data the test needs. | ||
736 | * | ||
737 | * @param num_peers number of peers to start | ||
738 | * @param check main function to run | ||
739 | * @param check_cls closure for @a check | ||
740 | * @return #GNUNET_OK on success | ||
741 | */ | ||
742 | #define GNUNET_TRANSPORT_TESTING_main(num_peers, check, check_cls) \ | ||
743 | GNUNET_TRANSPORT_TESTING_main_ (argv[0], \ | ||
744 | __FILE__, \ | ||
745 | num_peers, \ | ||
746 | check, \ | ||
747 | check_cls) | ||
748 | |||
749 | /* ***************** Convenience functions for sending ********* */ | ||
750 | |||
751 | /** | ||
752 | * Send a test message of type @a mtype and size @a msize from | ||
753 | * peer @a sender to peer @a receiver. The peers should be | ||
754 | * connected when this function is called. | ||
755 | * | ||
756 | * @param sender the sending peer | ||
757 | * @param receiver the receiving peer | ||
758 | * @param mtype message type to use | ||
759 | * @param msize size of the message, at least `sizeof (struct | ||
760 | * GNUNET_TRANSPORT_TESTING_TestMessage)` | ||
761 | * @param num unique message number | ||
762 | * @param cont continuation to call after transmission | ||
763 | * @param cont_cls closure for @a cont | ||
764 | * @return #GNUNET_OK if message was queued, | ||
765 | * #GNUNET_NO if peers are not connected | ||
766 | * #GNUNET_SYSERR if @a msize is illegal | ||
767 | */ | ||
768 | int | ||
769 | GNUNET_TRANSPORT_TESTING_send ( | ||
770 | struct GNUNET_TRANSPORT_TESTING_PeerContext *sender, | ||
771 | struct GNUNET_TRANSPORT_TESTING_PeerContext *receiver, | ||
772 | uint16_t mtype, | ||
773 | uint16_t msize, | ||
774 | uint32_t num, | ||
775 | GNUNET_SCHEDULER_TaskCallback cont, | ||
776 | void *cont_cls); | ||
777 | |||
778 | |||
779 | /** | ||
780 | * Message type used by #GNUNET_TRANSPORT_TESTING_simple_send(). | ||
781 | */ | ||
782 | #define GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE 12345 | ||
783 | |||
784 | /** | ||
785 | * Alternative message type for tests. | ||
786 | */ | ||
787 | #define GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE2 12346 | ||
788 | |||
789 | /** | ||
790 | * Message type used by #(). | ||
791 | */ | ||
792 | #define GNUNET_TRANSPORT_TESTING_SIMPLE_PERFORMANCE_MTYPE 12347 | ||
793 | |||
794 | /** | ||
795 | * Type of the closure argument to pass to | ||
796 | * #GNUNET_TRANSPORT_TESTING_simple_send() and | ||
797 | * #GNUNET_TRANSPORT_TESTING_large_send(). | ||
798 | */ | ||
799 | struct GNUNET_TRANSPORT_TESTING_SendClosure | ||
800 | { | ||
801 | /** | ||
802 | * Context for the transmission. | ||
803 | */ | ||
804 | struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc; | ||
805 | |||
806 | /** | ||
807 | * Function that returns the desired message size. Overrides | ||
808 | * the message size, can be NULL in which case the message | ||
809 | * size is the default. | ||
810 | */ | ||
811 | size_t (*get_size_cb) (unsigned int n); | ||
812 | |||
813 | /** | ||
814 | * Number of messages to be transmitted in a loop. | ||
815 | * Use zero for "forever" (until external shutdown). | ||
816 | */ | ||
817 | unsigned int num_messages; | ||
818 | |||
819 | /** | ||
820 | * Function to call after all transmissions, can be NULL. | ||
821 | */ | ||
822 | GNUNET_SCHEDULER_TaskCallback cont; | ||
823 | |||
824 | /** | ||
825 | * Closure for @e cont. | ||
826 | */ | ||
827 | void *cont_cls; | ||
828 | }; | ||
829 | |||
830 | |||
831 | /** | ||
832 | * Task that sends a minimalistic test message from the | ||
833 | * first peer to the second peer. | ||
834 | * | ||
835 | * @param cls the `struct GNUNET_TRANSPORT_TESTING_SendClosure` | ||
836 | * which should contain at least two peers, the first two | ||
837 | * of which should be currently connected | ||
838 | */ | ||
839 | void | ||
840 | GNUNET_TRANSPORT_TESTING_simple_send (void *cls); | ||
841 | |||
842 | /** | ||
843 | * Size of a message sent with | ||
844 | * #GNUNET_TRANSPORT_TESTING_large_send(). Big enough | ||
845 | * to usually force defragmentation. | ||
846 | */ | ||
847 | #define GNUNET_TRANSPORT_TESTING_LARGE_MESSAGE_SIZE 2600 | ||
848 | |||
849 | /** | ||
850 | * Task that sends a large test message from the | ||
851 | * first peer to the second peer. | ||
852 | * | ||
853 | * @param cls the `struct GNUNET_TRANSPORT_TESTING_SendClosure` | ||
854 | * which should contain at least two peers, the first two | ||
855 | * of which should be currently connected | ||
856 | */ | ||
857 | void | ||
858 | GNUNET_TRANSPORT_TESTING_large_send (void *cls); | ||
859 | |||
860 | |||
861 | /* ********************** log-only convenience functions ************* */ | ||
862 | |||
863 | |||
864 | /** | ||
865 | * Log a connect event. | ||
866 | * | ||
867 | * @param cls NULL | ||
868 | * @param me peer that had the event | ||
869 | * @param other peer that connected. | ||
870 | */ | ||
871 | void | ||
872 | GNUNET_TRANSPORT_TESTING_log_connect ( | ||
873 | void *cls, | ||
874 | struct GNUNET_TRANSPORT_TESTING_PeerContext *me, | ||
875 | const struct GNUNET_PeerIdentity *other); | ||
876 | |||
877 | |||
878 | /** | ||
879 | * Log a disconnect event. | ||
880 | * | ||
881 | * @param cls NULL | ||
882 | * @param me peer that had the event | ||
883 | * @param other peer that disconnected. | ||
884 | */ | ||
885 | void | ||
886 | GNUNET_TRANSPORT_TESTING_log_disconnect ( | ||
887 | void *cls, | ||
888 | struct GNUNET_TRANSPORT_TESTING_PeerContext *me, | ||
889 | const struct GNUNET_PeerIdentity *other); | ||
890 | |||
891 | |||
892 | /* ********************** low-level filename functions *************** */ | ||
893 | |||
894 | |||
895 | /** | ||
896 | * Extracts the test filename from an absolute file name and removes | ||
897 | * the extension. | ||
898 | * | ||
899 | * @param file absolute file name | ||
900 | * @return resulting test name | ||
901 | */ | ||
902 | char * | ||
903 | GNUNET_TRANSPORT_TESTING_get_test_name (const char *file); | ||
904 | |||
905 | |||
906 | /** | ||
907 | * This function takes the filename (e.g. argv[0), removes a "lt-"-prefix and | ||
908 | * if existing ".exe"-prefix and adds the peer-number | ||
909 | * | ||
910 | * @param file filename of the test, e.g. argv[0] | ||
911 | * @param count peer number | ||
912 | * @return configuration name to use | ||
913 | */ | ||
914 | char * | ||
915 | GNUNET_TRANSPORT_TESTING_get_config_name (const char *file, int count); | ||
916 | |||
917 | |||
918 | /** | ||
919 | * Extracts the plugin anme from an absolute file name and the test name | ||
920 | * @param file absolute file name | ||
921 | * @param test test name | ||
922 | * @return the plugin name | ||
923 | */ | ||
924 | char * | ||
925 | GNUNET_TRANSPORT_TESTING_get_test_plugin_name (const char *executable, | ||
926 | const char *testname); | ||
927 | |||
928 | |||
929 | /** | ||
930 | * Extracts the filename from an absolute file name and removes the | ||
931 | * extension | ||
932 | * | ||
933 | * @param file absolute file name | ||
934 | * @return the source name | ||
935 | */ | ||
936 | char * | ||
937 | GNUNET_TRANSPORT_TESTING_get_test_source_name (const char *file); | ||
938 | |||
939 | #endif | ||
940 | /* end of transport_testing.h */ | ||
diff --git a/src/service/transport/transport.conf.in b/src/service/transport/transport.conf.in new file mode 100644 index 000000000..6fb8e9ad7 --- /dev/null +++ b/src/service/transport/transport.conf.in | |||
@@ -0,0 +1,32 @@ | |||
1 | [transport] | ||
2 | START_ON_DEMAND = @START_ON_DEMAND@ | ||
3 | @JAVAPORT@PORT = 2091 | ||
4 | HOSTNAME = localhost | ||
5 | BINARY = gnunet-service-transport | ||
6 | # PREFIX = valgrind | ||
7 | |||
8 | ACCEPT_FROM = 127.0.0.1; | ||
9 | ACCEPT_FROM6 = ::1; | ||
10 | UNIXPATH = $GNUNET_RUNTIME_DIR/gnunet-service-transport.sock | ||
11 | # USERNAME = | ||
12 | # DISABLEV6 = | ||
13 | # REJECT_FROM = | ||
14 | # REJECT_FROM6 = | ||
15 | # BINDTO = | ||
16 | |||
17 | [communicator-tcp] | ||
18 | #PREFIX = valgrind --leak-check=full --track-origins=yes | ||
19 | BINDTO = 2086 | ||
20 | DISABLE_V6 = NO | ||
21 | BINARY = gnunet-communicator-tcp | ||
22 | IMMEDIATE_START = YES | ||
23 | |||
24 | [communicator-udp] | ||
25 | #PREFIX = valgrind --leak-check=full --track-origins=yes --trace-children=yes --log-file=$GNUNET_TEST_HOME/vg_cupeer1-%p | ||
26 | BINARY = gnunet-communicator-udp | ||
27 | BINDTO = 2086 | ||
28 | DISABLE_V6 = NO | ||
29 | IMMEDIATE_START = YES | ||
30 | |||
31 | [communicator-quic] | ||
32 | BINDTO = 127.0.0.1 | ||
diff --git a/src/service/transport/transport.h b/src/service/transport/transport.h new file mode 100644 index 000000000..66f17ee5b --- /dev/null +++ b/src/service/transport/transport.h | |||
@@ -0,0 +1,828 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2009-2014 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/transport.h | ||
23 | * @brief common internal definitions for transport service | ||
24 | * @author Christian Grothoff | ||
25 | */ | ||
26 | #ifndef TRANSPORT_H | ||
27 | #define TRANSPORT_H | ||
28 | |||
29 | #include "gnunet_util_lib.h" | ||
30 | #include "gnunet_time_lib.h" | ||
31 | #include "gnunet_constants.h" | ||
32 | |||
33 | #define DEBUG_TRANSPORT GNUNET_EXTRA_LOGGING | ||
34 | |||
35 | |||
36 | /** | ||
37 | * Similar to GNUNET_TRANSPORT_NotifyDisconnect but in and out quotas are | ||
38 | * included here. These values are not required outside transport_api | ||
39 | * | ||
40 | * @param cls closure | ||
41 | * @param peer the peer that connected | ||
42 | * @param bandwidth_in inbound bandwidth in NBO | ||
43 | * @param bandwidth_out outbound bandwidth in NBO | ||
44 | * | ||
45 | */ | ||
46 | typedef void (*NotifyConnect) ( | ||
47 | void *cls, | ||
48 | const struct GNUNET_PeerIdentity *peer, | ||
49 | struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in, | ||
50 | struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out); | ||
51 | |||
52 | |||
53 | GNUNET_NETWORK_STRUCT_BEGIN | ||
54 | |||
55 | |||
56 | /** | ||
57 | * Message from the transport service to the library | ||
58 | * asking to check if both processes agree about this | ||
59 | * peers identity. | ||
60 | */ | ||
61 | struct StartMessage | ||
62 | { | ||
63 | /** | ||
64 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_START | ||
65 | */ | ||
66 | struct GNUNET_MessageHeader header; | ||
67 | |||
68 | /** | ||
69 | * 0: no options | ||
70 | * 1: The @e self field should be checked | ||
71 | * 2: this client is interested in payload traffic | ||
72 | */ | ||
73 | uint32_t options; | ||
74 | |||
75 | /** | ||
76 | * Identity we think we have. If it does not match, the | ||
77 | * receiver should print out an error message and disconnect. | ||
78 | */ | ||
79 | struct GNUNET_PeerIdentity self; | ||
80 | }; | ||
81 | |||
82 | |||
83 | /** | ||
84 | * Message from the transport service to the library | ||
85 | * informing about neighbors. | ||
86 | */ | ||
87 | struct ConnectInfoMessage | ||
88 | { | ||
89 | /** | ||
90 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT | ||
91 | */ | ||
92 | struct GNUNET_MessageHeader header; | ||
93 | |||
94 | #if (defined(GNUNET_TRANSPORT_COMMUNICATION_VERSION) || \ | ||
95 | defined(GNUNET_TRANSPORT_CORE_VERSION)) | ||
96 | |||
97 | /** | ||
98 | * Always zero, for alignment. | ||
99 | */ | ||
100 | uint32_t reserved GNUNET_PACKED; | ||
101 | #else | ||
102 | /** | ||
103 | * Current outbound quota for this peer | ||
104 | */ | ||
105 | struct GNUNET_BANDWIDTH_Value32NBO quota_out; | ||
106 | #endif | ||
107 | |||
108 | /** | ||
109 | * Identity of the new neighbour. | ||
110 | */ | ||
111 | struct GNUNET_PeerIdentity id; | ||
112 | }; | ||
113 | |||
114 | |||
115 | /** | ||
116 | * Message from the transport service to the library | ||
117 | * informing about disconnects. | ||
118 | */ | ||
119 | struct DisconnectInfoMessage | ||
120 | { | ||
121 | /** | ||
122 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT | ||
123 | */ | ||
124 | struct GNUNET_MessageHeader header; | ||
125 | |||
126 | /** | ||
127 | * Reserved, always zero. | ||
128 | */ | ||
129 | uint32_t reserved GNUNET_PACKED; | ||
130 | |||
131 | /** | ||
132 | * Who got disconnected? | ||
133 | */ | ||
134 | struct GNUNET_PeerIdentity peer; | ||
135 | }; | ||
136 | |||
137 | |||
138 | /** | ||
139 | * Message used to notify the transport API about a message | ||
140 | * received from the network. The actual message follows. | ||
141 | */ | ||
142 | struct InboundMessage | ||
143 | { | ||
144 | /** | ||
145 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_RECV | ||
146 | */ | ||
147 | struct GNUNET_MessageHeader header; | ||
148 | |||
149 | /** | ||
150 | * Which peer sent the message? | ||
151 | */ | ||
152 | struct GNUNET_PeerIdentity peer; | ||
153 | }; | ||
154 | |||
155 | |||
156 | /** | ||
157 | * Message used to notify the transport API that it can | ||
158 | * send another message to the transport service. | ||
159 | */ | ||
160 | struct SendOkMessage | ||
161 | { | ||
162 | /** | ||
163 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK | ||
164 | */ | ||
165 | struct GNUNET_MessageHeader header; | ||
166 | |||
167 | #if (defined(GNUNET_TRANSPORT_COMMUNICATION_VERSION) || \ | ||
168 | defined(GNUNET_TRANSPORT_CORE_VERSION)) | ||
169 | |||
170 | uint32_t reserved GNUNET_PACKED; | ||
171 | #else | ||
172 | /** | ||
173 | * #GNUNET_OK if the transmission succeeded, | ||
174 | * #GNUNET_SYSERR if it failed (i.e. network disconnect); | ||
175 | * in either case, it is now OK for this client to | ||
176 | * send us another message for the given peer. | ||
177 | */ | ||
178 | uint16_t success GNUNET_PACKED; | ||
179 | |||
180 | /** | ||
181 | * Size of message sent | ||
182 | */ | ||
183 | uint16_t bytes_msg GNUNET_PACKED; | ||
184 | |||
185 | /** | ||
186 | * Size of message sent over wire. | ||
187 | * Includes plugin and protocol specific overheads. | ||
188 | */ | ||
189 | uint32_t bytes_physical GNUNET_PACKED; | ||
190 | #endif | ||
191 | |||
192 | /** | ||
193 | * Which peer can send more now? | ||
194 | */ | ||
195 | struct GNUNET_PeerIdentity peer; | ||
196 | }; | ||
197 | |||
198 | |||
199 | /** | ||
200 | * Message used to notify the transport API that it can | ||
201 | * send another message to the transport service. | ||
202 | * (Used to implement flow control.) | ||
203 | */ | ||
204 | struct RecvOkMessage | ||
205 | { | ||
206 | /** | ||
207 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_RECV_OK | ||
208 | */ | ||
209 | struct GNUNET_MessageHeader header; | ||
210 | |||
211 | /** | ||
212 | * Number of messages by which to increase the window, greater or | ||
213 | * equal to one. | ||
214 | */ | ||
215 | uint32_t increase_window_delta GNUNET_PACKED; | ||
216 | |||
217 | /** | ||
218 | * Which peer can CORE handle more from now? | ||
219 | */ | ||
220 | struct GNUNET_PeerIdentity peer; | ||
221 | }; | ||
222 | |||
223 | |||
224 | /** | ||
225 | * Message used to notify the transport service about a message | ||
226 | * to be transmitted to another peer. The actual message follows. | ||
227 | */ | ||
228 | struct OutboundMessage | ||
229 | { | ||
230 | /** | ||
231 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_SEND | ||
232 | */ | ||
233 | struct GNUNET_MessageHeader header; | ||
234 | |||
235 | /** | ||
236 | * An `enum GNUNET_MQ_PriorityPreferences` in NBO. | ||
237 | */ | ||
238 | uint32_t priority GNUNET_PACKED; | ||
239 | |||
240 | #if ! (defined(GNUNET_TRANSPORT_COMMUNICATION_VERSION) || \ | ||
241 | defined(GNUNET_TRANSPORT_CORE_VERSION)) | ||
242 | |||
243 | /** | ||
244 | * Allowed delay. | ||
245 | */ | ||
246 | struct GNUNET_TIME_RelativeNBO timeout; | ||
247 | #endif | ||
248 | |||
249 | /** | ||
250 | * Which peer should receive the message? | ||
251 | */ | ||
252 | struct GNUNET_PeerIdentity peer; | ||
253 | }; | ||
254 | |||
255 | |||
256 | /* *********************** TNG messages ***************** */ | ||
257 | |||
258 | /** | ||
259 | * Communicator goes online. Note which addresses it can | ||
260 | * work with. | ||
261 | */ | ||
262 | struct GNUNET_TRANSPORT_CommunicatorAvailableMessage | ||
263 | { | ||
264 | /** | ||
265 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_NEW_COMMUNICATOR. | ||
266 | */ | ||
267 | struct GNUNET_MessageHeader header; | ||
268 | |||
269 | /** | ||
270 | * NBO encoding of `enum GNUNET_TRANSPORT_CommunicatorCharacteristics` | ||
271 | */ | ||
272 | uint32_t cc; | ||
273 | |||
274 | /* Followed by the address prefix of the communicator */ | ||
275 | }; | ||
276 | |||
277 | |||
278 | /** | ||
279 | * Add address to the list. | ||
280 | */ | ||
281 | struct GNUNET_TRANSPORT_AddAddressMessage | ||
282 | { | ||
283 | /** | ||
284 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_ADD_ADDRESS. | ||
285 | */ | ||
286 | struct GNUNET_MessageHeader header; | ||
287 | |||
288 | /** | ||
289 | * Address identifier (used during deletion). | ||
290 | */ | ||
291 | uint32_t aid GNUNET_PACKED; | ||
292 | |||
293 | /** | ||
294 | * When does the address expire? | ||
295 | */ | ||
296 | struct GNUNET_TIME_RelativeNBO expiration; | ||
297 | |||
298 | /** | ||
299 | * An `enum GNUNET_NetworkType` in NBO. | ||
300 | */ | ||
301 | uint32_t nt; | ||
302 | |||
303 | /* followed by UTF-8 encoded, 0-terminated human-readable address */ | ||
304 | }; | ||
305 | |||
306 | |||
307 | /** | ||
308 | * Remove address from the list. | ||
309 | */ | ||
310 | struct GNUNET_TRANSPORT_DelAddressMessage | ||
311 | { | ||
312 | /** | ||
313 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_DEL_ADDRESS. | ||
314 | */ | ||
315 | struct GNUNET_MessageHeader header; | ||
316 | |||
317 | /** | ||
318 | * Address identifier. | ||
319 | */ | ||
320 | uint32_t aid GNUNET_PACKED; | ||
321 | }; | ||
322 | |||
323 | |||
324 | /** | ||
325 | * Inform transport about an incoming message. | ||
326 | */ | ||
327 | struct GNUNET_TRANSPORT_IncomingMessage | ||
328 | { | ||
329 | /** | ||
330 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_INCOMING_MSG. | ||
331 | */ | ||
332 | struct GNUNET_MessageHeader header; | ||
333 | |||
334 | /** | ||
335 | * Do we use flow control or not? | ||
336 | */ | ||
337 | uint32_t fc_on GNUNET_PACKED; | ||
338 | |||
339 | /** | ||
340 | * 64-bit number to identify the matching ACK. | ||
341 | */ | ||
342 | uint64_t fc_id GNUNET_PACKED; | ||
343 | |||
344 | /** | ||
345 | * How long does the communicator believe the address on which | ||
346 | * the message was received to remain valid? | ||
347 | */ | ||
348 | struct GNUNET_TIME_RelativeNBO expected_address_validity; | ||
349 | |||
350 | /** | ||
351 | * Sender identifier. | ||
352 | */ | ||
353 | struct GNUNET_PeerIdentity sender; | ||
354 | |||
355 | /** | ||
356 | * Direct neighbour sender identifier. | ||
357 | */ | ||
358 | struct GNUNET_PeerIdentity neighbour_sender; | ||
359 | |||
360 | /* followed by the message */ | ||
361 | }; | ||
362 | |||
363 | |||
364 | /** | ||
365 | * Transport informs us about being done with an incoming message. | ||
366 | * (only sent if fc_on was set). | ||
367 | */ | ||
368 | struct GNUNET_TRANSPORT_IncomingMessageAck | ||
369 | { | ||
370 | /** | ||
371 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_INCOMING_MSG_ACK. | ||
372 | */ | ||
373 | struct GNUNET_MessageHeader header; | ||
374 | |||
375 | /** | ||
376 | * Reserved (0) | ||
377 | */ | ||
378 | uint32_t reserved GNUNET_PACKED; | ||
379 | |||
380 | /** | ||
381 | * Which message is being ACKed? | ||
382 | */ | ||
383 | uint64_t fc_id GNUNET_PACKED; | ||
384 | |||
385 | /** | ||
386 | * Sender identifier of the original message. | ||
387 | */ | ||
388 | struct GNUNET_PeerIdentity sender; | ||
389 | }; | ||
390 | |||
391 | |||
392 | /** | ||
393 | * Add queue to the transport | ||
394 | */ | ||
395 | struct GNUNET_TRANSPORT_AddQueueMessage | ||
396 | { | ||
397 | /** | ||
398 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_SETUP. | ||
399 | */ | ||
400 | struct GNUNET_MessageHeader header; | ||
401 | |||
402 | /** | ||
403 | * Queue identifier (used to identify the queue). | ||
404 | */ | ||
405 | uint32_t qid GNUNET_PACKED; | ||
406 | |||
407 | /** | ||
408 | * Receiver that can be addressed via the queue. | ||
409 | */ | ||
410 | struct GNUNET_PeerIdentity receiver; | ||
411 | |||
412 | /** | ||
413 | * An `enum GNUNET_NetworkType` in NBO. | ||
414 | */ | ||
415 | uint32_t nt; | ||
416 | |||
417 | /** | ||
418 | * Maximum transmission unit, in NBO. UINT32_MAX for unlimited. | ||
419 | */ | ||
420 | uint32_t mtu; | ||
421 | |||
422 | /** | ||
423 | * Queue length, in NBO. Defines how many messages may be | ||
424 | * send through this queue. UINT64_MAX for unlimited. | ||
425 | */ | ||
426 | uint64_t q_len; | ||
427 | |||
428 | /** | ||
429 | * Priority of the queue in relation to other queues. | ||
430 | */ | ||
431 | uint32_t priority; | ||
432 | |||
433 | /** | ||
434 | * An `enum GNUNET_TRANSPORT_ConnectionStatus` in NBO. | ||
435 | */ | ||
436 | uint32_t cs; | ||
437 | |||
438 | /* followed by UTF-8 encoded, 0-terminated human-readable address */ | ||
439 | }; | ||
440 | |||
441 | |||
442 | /** | ||
443 | * Update queue | ||
444 | */ | ||
445 | struct GNUNET_TRANSPORT_UpdateQueueMessage | ||
446 | { | ||
447 | /** | ||
448 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_SETUP. | ||
449 | */ | ||
450 | struct GNUNET_MessageHeader header; | ||
451 | |||
452 | /** | ||
453 | * Queue identifier (used to identify the queue). | ||
454 | */ | ||
455 | uint32_t qid GNUNET_PACKED; | ||
456 | |||
457 | /** | ||
458 | * Receiver that can be addressed via the queue. | ||
459 | */ | ||
460 | struct GNUNET_PeerIdentity receiver; | ||
461 | |||
462 | /** | ||
463 | * An `enum GNUNET_NetworkType` in NBO. | ||
464 | */ | ||
465 | uint32_t nt; | ||
466 | |||
467 | /** | ||
468 | * Maximum transmission unit, in NBO. UINT32_MAX for unlimited. | ||
469 | */ | ||
470 | uint32_t mtu; | ||
471 | |||
472 | /** | ||
473 | * Queue length, in NBO. Defines how many messages may be | ||
474 | * send through this queue. UINT64_MAX for unlimited. | ||
475 | */ | ||
476 | uint64_t q_len; | ||
477 | |||
478 | /** | ||
479 | * Priority of the queue in relation to other queues. | ||
480 | */ | ||
481 | uint32_t priority; | ||
482 | |||
483 | /** | ||
484 | * An `enum GNUNET_TRANSPORT_ConnectionStatus` in NBO. | ||
485 | */ | ||
486 | uint32_t cs; | ||
487 | }; | ||
488 | |||
489 | |||
490 | /** | ||
491 | * Remove queue, it is no longer available. | ||
492 | */ | ||
493 | struct GNUNET_TRANSPORT_DelQueueMessage | ||
494 | { | ||
495 | /** | ||
496 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_TEARDOWN. | ||
497 | */ | ||
498 | struct GNUNET_MessageHeader header; | ||
499 | |||
500 | /** | ||
501 | * Address identifier. | ||
502 | */ | ||
503 | uint32_t qid GNUNET_PACKED; | ||
504 | |||
505 | /** | ||
506 | * Receiver that can be addressed via the queue. | ||
507 | */ | ||
508 | struct GNUNET_PeerIdentity receiver; | ||
509 | }; | ||
510 | |||
511 | |||
512 | /** | ||
513 | * Transport tells communicator that it wants a new queue. | ||
514 | */ | ||
515 | struct GNUNET_TRANSPORT_CreateQueue | ||
516 | { | ||
517 | /** | ||
518 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE. | ||
519 | */ | ||
520 | struct GNUNET_MessageHeader header; | ||
521 | |||
522 | /** | ||
523 | * Unique ID for the request. | ||
524 | */ | ||
525 | uint32_t request_id GNUNET_PACKED; | ||
526 | |||
527 | /** | ||
528 | * Receiver that can be addressed via the queue. | ||
529 | */ | ||
530 | struct GNUNET_PeerIdentity receiver; | ||
531 | |||
532 | /* followed by UTF-8 encoded, 0-terminated human-readable address */ | ||
533 | }; | ||
534 | |||
535 | |||
536 | /** | ||
537 | * Communicator tells transport how queue creation went down. | ||
538 | */ | ||
539 | struct GNUNET_TRANSPORT_CreateQueueResponse | ||
540 | { | ||
541 | /** | ||
542 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE_OK or | ||
543 | * #GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE_FAIL. | ||
544 | */ | ||
545 | struct GNUNET_MessageHeader header; | ||
546 | |||
547 | /** | ||
548 | * Unique ID for the request. | ||
549 | */ | ||
550 | uint32_t request_id GNUNET_PACKED; | ||
551 | }; | ||
552 | |||
553 | |||
554 | /** | ||
555 | * Inform communicator about transport's desire to send a message. | ||
556 | */ | ||
557 | struct GNUNET_TRANSPORT_SendMessageTo | ||
558 | { | ||
559 | /** | ||
560 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_MSG. | ||
561 | */ | ||
562 | struct GNUNET_MessageHeader header; | ||
563 | |||
564 | /** | ||
565 | * Which queue should we use? | ||
566 | */ | ||
567 | uint32_t qid GNUNET_PACKED; | ||
568 | |||
569 | /** | ||
570 | * Message ID, used for flow control. | ||
571 | */ | ||
572 | uint64_t mid GNUNET_PACKED; | ||
573 | |||
574 | /** | ||
575 | * Receiver identifier. | ||
576 | */ | ||
577 | struct GNUNET_PeerIdentity receiver; | ||
578 | |||
579 | /* followed by the message */ | ||
580 | }; | ||
581 | |||
582 | |||
583 | /** | ||
584 | * Inform transport that message was sent. | ||
585 | */ | ||
586 | struct GNUNET_TRANSPORT_SendMessageToAck | ||
587 | { | ||
588 | /** | ||
589 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_MSG_ACK. | ||
590 | */ | ||
591 | struct GNUNET_MessageHeader header; | ||
592 | |||
593 | /** | ||
594 | * Success (#GNUNET_OK), failure (#GNUNET_SYSERR). | ||
595 | */ | ||
596 | uint32_t status GNUNET_PACKED; | ||
597 | |||
598 | /** | ||
599 | * Message ID of the original message. | ||
600 | */ | ||
601 | uint64_t mid GNUNET_PACKED; | ||
602 | |||
603 | /** | ||
604 | * Queue ID for the queue which was used to send the message. | ||
605 | */ | ||
606 | uint32_t qid GNUNET_PACKED; | ||
607 | |||
608 | /** | ||
609 | * Receiver identifier. | ||
610 | */ | ||
611 | struct GNUNET_PeerIdentity receiver; | ||
612 | }; | ||
613 | |||
614 | |||
615 | /** | ||
616 | * Message from communicator to transport service asking for | ||
617 | * transmission of a backchannel message with the given peer @e pid | ||
618 | * and communicator. | ||
619 | */ | ||
620 | struct GNUNET_TRANSPORT_CommunicatorBackchannel | ||
621 | { | ||
622 | /** | ||
623 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_COMMUNICATOR_BACKCHANNEL | ||
624 | */ | ||
625 | struct GNUNET_MessageHeader header; | ||
626 | |||
627 | /** | ||
628 | * Always zero, for alignment. | ||
629 | */ | ||
630 | uint32_t reserved; | ||
631 | |||
632 | /** | ||
633 | * Target peer. | ||
634 | */ | ||
635 | struct GNUNET_PeerIdentity pid; | ||
636 | |||
637 | /* Followed by a `struct GNUNET_MessageHeader` with the encapsulated | ||
638 | message to the communicator */ | ||
639 | |||
640 | /* Followed by the 0-terminated string specifying the desired | ||
641 | communicator at the target (@e pid) peer */ | ||
642 | }; | ||
643 | |||
644 | |||
645 | /** | ||
646 | * Message from transport to communicator passing along a backchannel | ||
647 | * message from the given peer @e pid. | ||
648 | */ | ||
649 | struct GNUNET_TRANSPORT_CommunicatorBackchannelIncoming | ||
650 | { | ||
651 | /** | ||
652 | * Type will be | ||
653 | * #GNUNET_MESSAGE_TYPE_TRANSPORT_COMMUNICATOR_BACKCHANNEL_INCOMING | ||
654 | */ | ||
655 | struct GNUNET_MessageHeader header; | ||
656 | |||
657 | /** | ||
658 | * Always zero, for alignment. | ||
659 | */ | ||
660 | uint32_t reserved; | ||
661 | |||
662 | /** | ||
663 | * Origin peer. | ||
664 | */ | ||
665 | struct GNUNET_PeerIdentity pid; | ||
666 | |||
667 | /* Followed by a `struct GNUNET_MessageHeader` with the encapsulated | ||
668 | message to the communicator */ | ||
669 | }; | ||
670 | |||
671 | |||
672 | /** | ||
673 | * Request to start monitoring. | ||
674 | */ | ||
675 | struct GNUNET_TRANSPORT_MonitorStart | ||
676 | { | ||
677 | /** | ||
678 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_MONITOR_START. | ||
679 | */ | ||
680 | struct GNUNET_MessageHeader header; | ||
681 | |||
682 | /** | ||
683 | * #GNUNET_YES for one-shot montoring, #GNUNET_NO for continuous monitoring. | ||
684 | */ | ||
685 | uint32_t one_shot; | ||
686 | |||
687 | /** | ||
688 | * Target identifier to monitor, all zeros for "all peers". | ||
689 | */ | ||
690 | struct GNUNET_PeerIdentity peer; | ||
691 | }; | ||
692 | |||
693 | |||
694 | /** | ||
695 | * Monitoring data. | ||
696 | */ | ||
697 | struct GNUNET_TRANSPORT_MonitorData | ||
698 | { | ||
699 | /** | ||
700 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_MONITOR_DATA. | ||
701 | */ | ||
702 | struct GNUNET_MessageHeader header; | ||
703 | |||
704 | /** | ||
705 | * Network type (an `enum GNUNET_NetworkType` in NBO). | ||
706 | */ | ||
707 | uint32_t nt GNUNET_PACKED; | ||
708 | |||
709 | /** | ||
710 | * Target identifier. | ||
711 | */ | ||
712 | struct GNUNET_PeerIdentity peer; | ||
713 | |||
714 | /** | ||
715 | * @deprecated To be discussed if we keep these... | ||
716 | */ | ||
717 | struct GNUNET_TIME_AbsoluteNBO last_validation; | ||
718 | struct GNUNET_TIME_AbsoluteNBO valid_until; | ||
719 | struct GNUNET_TIME_AbsoluteNBO next_validation; | ||
720 | |||
721 | /** | ||
722 | * Current round-trip time estimate. | ||
723 | */ | ||
724 | struct GNUNET_TIME_RelativeNBO rtt; | ||
725 | |||
726 | /** | ||
727 | * Connection status (in NBO). | ||
728 | */ | ||
729 | uint32_t cs GNUNET_PACKED; | ||
730 | |||
731 | /** | ||
732 | * Messages pending (in NBO). | ||
733 | */ | ||
734 | uint32_t num_msg_pending GNUNET_PACKED; | ||
735 | |||
736 | /** | ||
737 | * Bytes pending (in NBO). | ||
738 | */ | ||
739 | uint32_t num_bytes_pending GNUNET_PACKED; | ||
740 | |||
741 | /* Followed by 0-terminated address of the peer */ | ||
742 | }; | ||
743 | |||
744 | |||
745 | /** | ||
746 | * Request to verify address. | ||
747 | */ | ||
748 | struct GNUNET_TRANSPORT_AddressToVerify | ||
749 | { | ||
750 | /** | ||
751 | * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_CONSIDER_VERIFY. | ||
752 | */ | ||
753 | struct GNUNET_MessageHeader header; | ||
754 | |||
755 | /** | ||
756 | * Reserved. 0. | ||
757 | */ | ||
758 | uint32_t reserved; | ||
759 | |||
760 | /** | ||
761 | * Peer the address is from. | ||
762 | */ | ||
763 | struct GNUNET_PeerIdentity peer; | ||
764 | |||
765 | /* followed by variable-size raw address */ | ||
766 | }; | ||
767 | |||
768 | |||
769 | /** | ||
770 | * Application client to TRANSPORT service: we would like to have | ||
771 | * address suggestions for this peer. | ||
772 | */ | ||
773 | struct ExpressPreferenceMessage | ||
774 | { | ||
775 | /** | ||
776 | * Type is #GNUNET_MESSAGE_TYPE_TRANSPORT_SUGGEST or | ||
777 | * #GNUNET_MESSAGE_TYPE_TRANSPORT_SUGGEST_CANCEL to stop | ||
778 | * suggestions. | ||
779 | */ | ||
780 | struct GNUNET_MessageHeader header; | ||
781 | |||
782 | /** | ||
783 | * What type of performance preference does the client have? | ||
784 | * A `enum GNUNET_MQ_PreferenceKind` in NBO. | ||
785 | */ | ||
786 | uint32_t pk GNUNET_PACKED; | ||
787 | |||
788 | /** | ||
789 | * Peer to get address suggestions for. | ||
790 | */ | ||
791 | struct GNUNET_PeerIdentity peer; | ||
792 | |||
793 | /** | ||
794 | * How much bandwidth in bytes/second does the application expect? | ||
795 | */ | ||
796 | struct GNUNET_BANDWIDTH_Value32NBO bw; | ||
797 | }; | ||
798 | |||
799 | |||
800 | /** | ||
801 | * We got an address of another peer, TRANSPORT service | ||
802 | * should validate it. There is no response. | ||
803 | */ | ||
804 | struct RequestHelloValidationMessage | ||
805 | { | ||
806 | /** | ||
807 | * Type is #GNUNET_MESSAGE_TYPE_TRANSPORT_REQUEST_HELLO_VALIDATION. | ||
808 | */ | ||
809 | struct GNUNET_MessageHeader header; | ||
810 | |||
811 | /** | ||
812 | * What type of network does the other peer claim this is? | ||
813 | * A `enum GNUNET_NetworkType` in NBO. | ||
814 | */ | ||
815 | uint32_t nt GNUNET_PACKED; | ||
816 | |||
817 | /** | ||
818 | * Peer to the address is presumably for. | ||
819 | */ | ||
820 | struct GNUNET_PeerIdentity peer; | ||
821 | |||
822 | /* followed by 0-terminated address to validate */ | ||
823 | }; | ||
824 | |||
825 | GNUNET_NETWORK_STRUCT_END | ||
826 | |||
827 | /* end of transport.h */ | ||
828 | #endif | ||
diff --git a/src/service/transport/transport_api2_application.c b/src/service/transport/transport_api2_application.c new file mode 100644 index 000000000..00f5f62eb --- /dev/null +++ b/src/service/transport/transport_api2_application.c | |||
@@ -0,0 +1,397 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2010--2019 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | /** | ||
21 | * @file transport/transport_api2_application.c | ||
22 | * @brief enable clients to ask TRANSPORT about establishing connections to peers | ||
23 | * @author Christian Grothoff | ||
24 | * @author Matthias Wachs | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_transport_application_service.h" | ||
28 | #include "gnunet_transport_core_service.h" | ||
29 | #include "transport.h" | ||
30 | |||
31 | |||
32 | #define LOG(kind, ...) \ | ||
33 | GNUNET_log_from (kind, "transport-application-api", __VA_ARGS__) | ||
34 | |||
35 | |||
36 | /** | ||
37 | * Handle for TRANSPORT address suggestion requests. | ||
38 | */ | ||
39 | struct GNUNET_TRANSPORT_ApplicationSuggestHandle | ||
40 | { | ||
41 | /** | ||
42 | * ID of the peer for which address suggestion was requested. | ||
43 | */ | ||
44 | struct GNUNET_PeerIdentity id; | ||
45 | |||
46 | /** | ||
47 | * Connecitivity handle this suggestion handle belongs to. | ||
48 | */ | ||
49 | struct GNUNET_TRANSPORT_ApplicationHandle *ch; | ||
50 | |||
51 | /** | ||
52 | * What preference is being expressed? | ||
53 | */ | ||
54 | enum GNUNET_MQ_PriorityPreferences pk; | ||
55 | |||
56 | /** | ||
57 | * How much bandwidth does the client expect? | ||
58 | */ | ||
59 | struct GNUNET_BANDWIDTH_Value32NBO bw; | ||
60 | }; | ||
61 | |||
62 | |||
63 | /** | ||
64 | * Handle to the TRANSPORT subsystem for application management. | ||
65 | */ | ||
66 | struct GNUNET_TRANSPORT_ApplicationHandle | ||
67 | { | ||
68 | /** | ||
69 | * Our configuration. | ||
70 | */ | ||
71 | const struct GNUNET_CONFIGURATION_Handle *cfg; | ||
72 | |||
73 | /** | ||
74 | * Map with the identities of all the peers for which we would | ||
75 | * like to have address suggestions. The key is the PID, the | ||
76 | * value is currently the `struct GNUNET_TRANSPORT_ApplicationSuggestHandle` | ||
77 | */ | ||
78 | struct GNUNET_CONTAINER_MultiPeerMap *sug_requests; | ||
79 | |||
80 | /** | ||
81 | * Message queue for sending requests to the TRANSPORT service. | ||
82 | */ | ||
83 | struct GNUNET_MQ_Handle *mq; | ||
84 | |||
85 | /** | ||
86 | * Task to trigger reconnect. | ||
87 | */ | ||
88 | struct GNUNET_SCHEDULER_Task *task; | ||
89 | |||
90 | /** | ||
91 | * Reconnect backoff delay. | ||
92 | */ | ||
93 | struct GNUNET_TIME_Relative backoff; | ||
94 | }; | ||
95 | |||
96 | |||
97 | /** | ||
98 | * Re-establish the connection to the TRANSPORT service. | ||
99 | * | ||
100 | * @param ch handle to use to re-connect. | ||
101 | */ | ||
102 | static void | ||
103 | reconnect (struct GNUNET_TRANSPORT_ApplicationHandle *ch); | ||
104 | |||
105 | |||
106 | /** | ||
107 | * Re-establish the connection to the TRANSPORT service. | ||
108 | * | ||
109 | * @param cls handle to use to re-connect. | ||
110 | */ | ||
111 | static void | ||
112 | reconnect_task (void *cls) | ||
113 | { | ||
114 | struct GNUNET_TRANSPORT_ApplicationHandle *ch = cls; | ||
115 | |||
116 | ch->task = NULL; | ||
117 | reconnect (ch); | ||
118 | } | ||
119 | |||
120 | |||
121 | /** | ||
122 | * Disconnect from TRANSPORT and then reconnect. | ||
123 | * | ||
124 | * @param ch our handle | ||
125 | */ | ||
126 | static void | ||
127 | force_reconnect (struct GNUNET_TRANSPORT_ApplicationHandle *ch) | ||
128 | { | ||
129 | if (NULL != ch->mq) | ||
130 | { | ||
131 | GNUNET_MQ_destroy (ch->mq); | ||
132 | ch->mq = NULL; | ||
133 | } | ||
134 | ch->backoff = GNUNET_TIME_STD_BACKOFF (ch->backoff); | ||
135 | ch->task = GNUNET_SCHEDULER_add_delayed (ch->backoff, &reconnect_task, ch); | ||
136 | } | ||
137 | |||
138 | |||
139 | /** | ||
140 | * We encountered an error handling the MQ to the | ||
141 | * TRANSPORT service. Reconnect. | ||
142 | * | ||
143 | * @param cls the `struct GNUNET_TRANSPORT_ApplicationHandle` | ||
144 | * @param error details about the error | ||
145 | */ | ||
146 | static void | ||
147 | error_handler (void *cls, enum GNUNET_MQ_Error error) | ||
148 | { | ||
149 | struct GNUNET_TRANSPORT_ApplicationHandle *ch = cls; | ||
150 | |||
151 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
152 | "TRANSPORT connection died (code %d), reconnecting\n", | ||
153 | (int) error); | ||
154 | force_reconnect (ch); | ||
155 | } | ||
156 | |||
157 | |||
158 | /** | ||
159 | * Transmit request for an address suggestion. | ||
160 | * | ||
161 | * @param cls the `struct GNUNET_TRANSPORT_ApplicationHandle` | ||
162 | * @param peer peer to ask for an address suggestion for | ||
163 | * @param value the `struct GNUNET_TRANSPORT_SuggestHandle` | ||
164 | * @return #GNUNET_OK (continue to iterate), #GNUNET_SYSERR on | ||
165 | * failure (message queue no longer exists) | ||
166 | */ | ||
167 | static int | ||
168 | transmit_suggestion (void *cls, | ||
169 | const struct GNUNET_PeerIdentity *peer, | ||
170 | void *value) | ||
171 | { | ||
172 | struct GNUNET_TRANSPORT_ApplicationHandle *ch = cls; | ||
173 | struct GNUNET_TRANSPORT_ApplicationSuggestHandle *sh = value; | ||
174 | struct GNUNET_MQ_Envelope *ev; | ||
175 | struct ExpressPreferenceMessage *m; | ||
176 | |||
177 | if (NULL == ch->mq) | ||
178 | return GNUNET_SYSERR; | ||
179 | ev = GNUNET_MQ_msg (m, GNUNET_MESSAGE_TYPE_TRANSPORT_SUGGEST); | ||
180 | m->pk = htonl ((uint32_t) sh->pk); | ||
181 | m->bw = sh->bw; | ||
182 | m->peer = *peer; | ||
183 | GNUNET_MQ_send (ch->mq, ev); | ||
184 | return GNUNET_OK; | ||
185 | } | ||
186 | |||
187 | |||
188 | /** | ||
189 | * Re-establish the connection to the TRANSPORT service. | ||
190 | * | ||
191 | * @param ch handle to use to re-connect. | ||
192 | */ | ||
193 | static void | ||
194 | reconnect (struct GNUNET_TRANSPORT_ApplicationHandle *ch) | ||
195 | { | ||
196 | static const struct GNUNET_MQ_MessageHandler handlers[] = { { NULL, 0, 0 } }; | ||
197 | |||
198 | GNUNET_assert (NULL == ch->mq); | ||
199 | ch->mq = | ||
200 | GNUNET_CLIENT_connect (ch->cfg, "transport", handlers, &error_handler, ch); | ||
201 | if (NULL == ch->mq) | ||
202 | { | ||
203 | force_reconnect (ch); | ||
204 | return; | ||
205 | } | ||
206 | GNUNET_CONTAINER_multipeermap_iterate (ch->sug_requests, | ||
207 | &transmit_suggestion, | ||
208 | ch); | ||
209 | } | ||
210 | |||
211 | |||
212 | /** | ||
213 | * Initialize the TRANSPORT application suggestion client handle. | ||
214 | * | ||
215 | * @param cfg configuration to use | ||
216 | * @return transport application handle, NULL on error | ||
217 | */ | ||
218 | struct GNUNET_TRANSPORT_ApplicationHandle * | ||
219 | GNUNET_TRANSPORT_application_init ( | ||
220 | const struct GNUNET_CONFIGURATION_Handle *cfg) | ||
221 | { | ||
222 | struct GNUNET_TRANSPORT_ApplicationHandle *ch; | ||
223 | |||
224 | ch = GNUNET_new (struct GNUNET_TRANSPORT_ApplicationHandle); | ||
225 | ch->cfg = cfg; | ||
226 | ch->sug_requests = GNUNET_CONTAINER_multipeermap_create (32, GNUNET_YES); | ||
227 | reconnect (ch); | ||
228 | return ch; | ||
229 | } | ||
230 | |||
231 | |||
232 | /** | ||
233 | * Function called to free all `struct GNUNET_TRANSPORT_ApplicationSuggestHandle`s | ||
234 | * in the map. | ||
235 | * | ||
236 | * @param cls NULL | ||
237 | * @param key the key | ||
238 | * @param value the value to free | ||
239 | * @return #GNUNET_OK (continue to iterate) | ||
240 | */ | ||
241 | static int | ||
242 | free_sug_handle (void *cls, const struct GNUNET_PeerIdentity *key, void *value) | ||
243 | { | ||
244 | struct GNUNET_TRANSPORT_ApplicationSuggestHandle *cur = value; | ||
245 | |||
246 | GNUNET_free (cur); | ||
247 | return GNUNET_OK; | ||
248 | } | ||
249 | |||
250 | |||
251 | /** | ||
252 | * Client is done with TRANSPORT application management, release resources. | ||
253 | * | ||
254 | * @param ch handle to release | ||
255 | */ | ||
256 | void | ||
257 | GNUNET_TRANSPORT_application_done ( | ||
258 | struct GNUNET_TRANSPORT_ApplicationHandle *ch) | ||
259 | { | ||
260 | if (NULL != ch->mq) | ||
261 | { | ||
262 | GNUNET_MQ_destroy (ch->mq); | ||
263 | ch->mq = NULL; | ||
264 | } | ||
265 | if (NULL != ch->task) | ||
266 | { | ||
267 | GNUNET_SCHEDULER_cancel (ch->task); | ||
268 | ch->task = NULL; | ||
269 | } | ||
270 | GNUNET_CONTAINER_multipeermap_iterate (ch->sug_requests, | ||
271 | &free_sug_handle, | ||
272 | NULL); | ||
273 | GNUNET_CONTAINER_multipeermap_destroy (ch->sug_requests); | ||
274 | GNUNET_free (ch); | ||
275 | } | ||
276 | |||
277 | |||
278 | /** | ||
279 | * An application would like TRANSPORT to connect to a peer. | ||
280 | * | ||
281 | * @param ch handle | ||
282 | * @param peer identity of the peer we need an address for | ||
283 | * @param pk what kind of application will the application require (can be | ||
284 | * #GNUNET_MQ_PRIO_BACKGROUND, we will still try to connect) | ||
285 | * @param bw desired bandwidth, can be zero (we will still try to connect) | ||
286 | * @return suggest handle, NULL if a request is already pending | ||
287 | */ | ||
288 | struct GNUNET_TRANSPORT_ApplicationSuggestHandle * | ||
289 | GNUNET_TRANSPORT_application_suggest ( | ||
290 | struct GNUNET_TRANSPORT_ApplicationHandle *ch, | ||
291 | const struct GNUNET_PeerIdentity *peer, | ||
292 | enum GNUNET_MQ_PriorityPreferences pk, | ||
293 | struct GNUNET_BANDWIDTH_Value32NBO bw) | ||
294 | { | ||
295 | struct GNUNET_TRANSPORT_ApplicationSuggestHandle *s; | ||
296 | |||
297 | s = GNUNET_new (struct GNUNET_TRANSPORT_ApplicationSuggestHandle); | ||
298 | s->ch = ch; | ||
299 | s->id = *peer; | ||
300 | s->pk = pk; | ||
301 | s->bw = bw; | ||
302 | (void) GNUNET_CONTAINER_multipeermap_put ( | ||
303 | ch->sug_requests, | ||
304 | &s->id, | ||
305 | s, | ||
306 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE); | ||
307 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
308 | "Requesting TRANSPORT to suggest address for `%s'\n", | ||
309 | GNUNET_i2s (peer)); | ||
310 | if (NULL == ch->mq) | ||
311 | return s; | ||
312 | GNUNET_assert (GNUNET_OK == transmit_suggestion (ch, &s->id, s)); | ||
313 | return s; | ||
314 | } | ||
315 | |||
316 | |||
317 | /** | ||
318 | * We no longer care about being connected to a peer. | ||
319 | * | ||
320 | * @param sh handle to stop | ||
321 | */ | ||
322 | void | ||
323 | GNUNET_TRANSPORT_application_suggest_cancel ( | ||
324 | struct GNUNET_TRANSPORT_ApplicationSuggestHandle *sh) | ||
325 | { | ||
326 | struct GNUNET_TRANSPORT_ApplicationHandle *ch = sh->ch; | ||
327 | struct GNUNET_MQ_Envelope *ev; | ||
328 | struct ExpressPreferenceMessage *m; | ||
329 | |||
330 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
331 | "Telling TRANSPORT we no longer care for an address for `%s'\n", | ||
332 | GNUNET_i2s (&sh->id)); | ||
333 | GNUNET_assert ( | ||
334 | GNUNET_OK == | ||
335 | GNUNET_CONTAINER_multipeermap_remove (ch->sug_requests, &sh->id, sh)); | ||
336 | if (NULL == ch->mq) | ||
337 | { | ||
338 | GNUNET_free (sh); | ||
339 | return; | ||
340 | } | ||
341 | ev = GNUNET_MQ_msg (m, GNUNET_MESSAGE_TYPE_TRANSPORT_SUGGEST_CANCEL); | ||
342 | m->pk = htonl ((uint32_t) sh->pk); | ||
343 | m->bw = sh->bw; | ||
344 | m->peer = sh->id; | ||
345 | GNUNET_MQ_send (ch->mq, ev); | ||
346 | GNUNET_free (sh); | ||
347 | } | ||
348 | |||
349 | |||
350 | /** | ||
351 | * An application (or a communicator) has received a HELLO (or other address | ||
352 | * data of another peer) and wants TRANSPORT to validate that the address is | ||
353 | * correct. The result is NOT returned, in fact TRANSPORT may do nothing | ||
354 | * (i.e. if it has too many active validations or recently tried this one | ||
355 | * already). If the @a addr validates, TRANSPORT will persist the address | ||
356 | * with PEERSTORE. | ||
357 | * | ||
358 | * @param ch handle | ||
359 | * @param peer identity of the peer we have an address for | ||
360 | * @param nt network type of @a addr (as claimed by the other peer); | ||
361 | * used by TRANSPORT to avoid trying @a addr's that really cannot work | ||
362 | * due to network type mismatches | ||
363 | * @param addr address to validate | ||
364 | */ | ||
365 | void | ||
366 | GNUNET_TRANSPORT_application_validate ( | ||
367 | struct GNUNET_TRANSPORT_ApplicationHandle *ch, | ||
368 | const struct GNUNET_PeerIdentity *peer, | ||
369 | enum GNUNET_NetworkType nt, | ||
370 | const char *addr) | ||
371 | { | ||
372 | struct GNUNET_MQ_Envelope *ev; | ||
373 | struct RequestHelloValidationMessage *m; | ||
374 | size_t alen; | ||
375 | |||
376 | if (NULL == ch->mq) | ||
377 | { | ||
378 | GNUNET_log ( | ||
379 | GNUNET_ERROR_TYPE_WARNING, | ||
380 | "Address validation for %s:%s skipped as transport is not connected\n", | ||
381 | GNUNET_i2s (peer), | ||
382 | addr); | ||
383 | return; | ||
384 | } | ||
385 | alen = strlen (addr) + 1; | ||
386 | ev = | ||
387 | GNUNET_MQ_msg_extra (m, | ||
388 | alen, | ||
389 | GNUNET_MESSAGE_TYPE_TRANSPORT_REQUEST_HELLO_VALIDATION); | ||
390 | m->peer = *peer; | ||
391 | m->nt = htonl ((uint32_t) nt); | ||
392 | memcpy (&m[1], addr, alen); | ||
393 | GNUNET_MQ_send (ch->mq, ev); | ||
394 | } | ||
395 | |||
396 | |||
397 | /* end of transport_api2_application.c */ | ||
diff --git a/src/service/transport/transport_api2_communication.c b/src/service/transport/transport_api2_communication.c new file mode 100644 index 000000000..e0fdad214 --- /dev/null +++ b/src/service/transport/transport_api2_communication.c | |||
@@ -0,0 +1,1126 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2018 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/transport_api2_communication.c | ||
23 | * @brief implementation of the gnunet_transport_communication_service.h API | ||
24 | * @author Christian Grothoff | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_util_lib.h" | ||
28 | #include "gnunet_protocols.h" | ||
29 | #include "gnunet_transport_communication_service.h" | ||
30 | #include "transport.h" | ||
31 | |||
32 | |||
33 | /** | ||
34 | * How many messages do we keep at most in the queue to the | ||
35 | * transport service before we start to drop (default, | ||
36 | * can be changed via the configuration file). | ||
37 | */ | ||
38 | #define DEFAULT_MAX_QUEUE_LENGTH 16 | ||
39 | |||
40 | |||
41 | /** | ||
42 | * Information we track per packet to enable flow control. | ||
43 | */ | ||
44 | struct FlowControl | ||
45 | { | ||
46 | /** | ||
47 | * Kept in a DLL. | ||
48 | */ | ||
49 | struct FlowControl *next; | ||
50 | |||
51 | /** | ||
52 | * Kept in a DLL. | ||
53 | */ | ||
54 | struct FlowControl *prev; | ||
55 | |||
56 | /** | ||
57 | * Function to call once the message was processed. | ||
58 | */ | ||
59 | GNUNET_TRANSPORT_MessageCompletedCallback cb; | ||
60 | |||
61 | /** | ||
62 | * Closure for @e cb | ||
63 | */ | ||
64 | void *cb_cls; | ||
65 | |||
66 | /** | ||
67 | * Which peer is this about? | ||
68 | */ | ||
69 | struct GNUNET_PeerIdentity sender; | ||
70 | |||
71 | /** | ||
72 | * More-or-less unique ID for the message. | ||
73 | */ | ||
74 | uint64_t id; | ||
75 | }; | ||
76 | |||
77 | |||
78 | /** | ||
79 | * Information we track per message to tell the transport about | ||
80 | * success or failures. | ||
81 | */ | ||
82 | struct AckPending | ||
83 | { | ||
84 | /** | ||
85 | * Kept in a DLL. | ||
86 | */ | ||
87 | struct AckPending *next; | ||
88 | |||
89 | /** | ||
90 | * Kept in a DLL. | ||
91 | */ | ||
92 | struct AckPending *prev; | ||
93 | |||
94 | /** | ||
95 | * Communicator this entry belongs to. | ||
96 | */ | ||
97 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch; | ||
98 | |||
99 | /** | ||
100 | * Which peer is this about? | ||
101 | */ | ||
102 | struct GNUNET_PeerIdentity receiver; | ||
103 | |||
104 | /** | ||
105 | * More-or-less unique ID for the message. | ||
106 | */ | ||
107 | uint64_t mid; | ||
108 | |||
109 | /** | ||
110 | * Queue ID of the queue which will be used for the message. | ||
111 | */ | ||
112 | uint32_t qid; | ||
113 | }; | ||
114 | |||
115 | |||
116 | /** | ||
117 | * Opaque handle to the transport service for communicators. | ||
118 | */ | ||
119 | struct GNUNET_TRANSPORT_CommunicatorHandle | ||
120 | { | ||
121 | /** | ||
122 | * Head of DLL of addresses this communicator offers to the transport service. | ||
123 | */ | ||
124 | struct GNUNET_TRANSPORT_AddressIdentifier *ai_head; | ||
125 | |||
126 | /** | ||
127 | * Tail of DLL of addresses this communicator offers to the transport service. | ||
128 | */ | ||
129 | struct GNUNET_TRANSPORT_AddressIdentifier *ai_tail; | ||
130 | |||
131 | /** | ||
132 | * DLL of messages awaiting flow control confirmation (ack). | ||
133 | */ | ||
134 | struct FlowControl *fc_head; | ||
135 | |||
136 | /** | ||
137 | * DLL of messages awaiting flow control confirmation (ack). | ||
138 | */ | ||
139 | struct FlowControl *fc_tail; | ||
140 | |||
141 | /** | ||
142 | * DLL of messages awaiting transmission confirmation (ack). | ||
143 | */ | ||
144 | struct AckPending *ap_head; | ||
145 | |||
146 | /** | ||
147 | * DLL of messages awaiting transmission confirmation (ack). | ||
148 | */ | ||
149 | struct AckPending *ap_tail; | ||
150 | |||
151 | /** | ||
152 | * DLL of queues we offer. | ||
153 | */ | ||
154 | struct GNUNET_TRANSPORT_QueueHandle *queue_head; | ||
155 | |||
156 | /** | ||
157 | * DLL of queues we offer. | ||
158 | */ | ||
159 | struct GNUNET_TRANSPORT_QueueHandle *queue_tail; | ||
160 | |||
161 | /** | ||
162 | * Our configuration. | ||
163 | */ | ||
164 | const struct GNUNET_CONFIGURATION_Handle *cfg; | ||
165 | |||
166 | /** | ||
167 | * Config section to use. | ||
168 | */ | ||
169 | const char *config_section; | ||
170 | |||
171 | /** | ||
172 | * Address prefix to use. | ||
173 | */ | ||
174 | const char *addr_prefix; | ||
175 | |||
176 | /** | ||
177 | * Function to call when the transport service wants us to initiate | ||
178 | * a communication channel with another peer. | ||
179 | */ | ||
180 | GNUNET_TRANSPORT_CommunicatorMqInit mq_init; | ||
181 | |||
182 | /** | ||
183 | * Closure for @e mq_init. | ||
184 | */ | ||
185 | void *mq_init_cls; | ||
186 | |||
187 | /** | ||
188 | * Function to call when the transport service receives messages | ||
189 | * for a communicator (i.e. for NAT traversal or for non-bidirectional | ||
190 | * communicators). | ||
191 | */ | ||
192 | GNUNET_TRANSPORT_CommunicatorNotify notify_cb; | ||
193 | |||
194 | /** | ||
195 | * Closure for @e notify_Cb. | ||
196 | */ | ||
197 | void *notify_cb_cls; | ||
198 | |||
199 | /** | ||
200 | * Queue to talk to the transport service. | ||
201 | */ | ||
202 | struct GNUNET_MQ_Handle *mq; | ||
203 | |||
204 | /** | ||
205 | * Maximum permissible queue length. | ||
206 | */ | ||
207 | unsigned long long max_queue_length; | ||
208 | |||
209 | /** | ||
210 | * Flow-control identifier generator. | ||
211 | */ | ||
212 | uint64_t fc_gen; | ||
213 | |||
214 | /** | ||
215 | * Internal UUID for the address used in communication with the | ||
216 | * transport service. | ||
217 | */ | ||
218 | uint32_t aid_gen; | ||
219 | |||
220 | /** | ||
221 | * Queue identifier generator. | ||
222 | */ | ||
223 | uint32_t queue_gen; | ||
224 | |||
225 | /** | ||
226 | * Characteristics of the communicator. | ||
227 | */ | ||
228 | enum GNUNET_TRANSPORT_CommunicatorCharacteristics cc; | ||
229 | }; | ||
230 | |||
231 | |||
232 | /** | ||
233 | * Handle returned to identify the internal data structure the transport | ||
234 | * API has created to manage a message queue to a particular peer. | ||
235 | */ | ||
236 | struct GNUNET_TRANSPORT_QueueHandle | ||
237 | { | ||
238 | /** | ||
239 | * Kept in a DLL. | ||
240 | */ | ||
241 | struct GNUNET_TRANSPORT_QueueHandle *next; | ||
242 | |||
243 | /** | ||
244 | * Kept in a DLL. | ||
245 | */ | ||
246 | struct GNUNET_TRANSPORT_QueueHandle *prev; | ||
247 | |||
248 | /** | ||
249 | * Handle this queue belongs to. | ||
250 | */ | ||
251 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch; | ||
252 | |||
253 | /** | ||
254 | * Address used by the communication queue. | ||
255 | */ | ||
256 | char *address; | ||
257 | |||
258 | /** | ||
259 | * The queue itself. | ||
260 | */ | ||
261 | struct GNUNET_MQ_Handle *mq; | ||
262 | |||
263 | /** | ||
264 | * Which peer we can communciate with. | ||
265 | */ | ||
266 | struct GNUNET_PeerIdentity peer; | ||
267 | |||
268 | /** | ||
269 | * Network type of the communication queue. | ||
270 | */ | ||
271 | enum GNUNET_NetworkType nt; | ||
272 | |||
273 | /** | ||
274 | * Communication status of the queue. | ||
275 | */ | ||
276 | enum GNUNET_TRANSPORT_ConnectionStatus cs; | ||
277 | |||
278 | /** | ||
279 | * ID for this queue when talking to the transport service. | ||
280 | */ | ||
281 | uint32_t queue_id; | ||
282 | |||
283 | /** | ||
284 | * Maximum transmission unit for the queue. | ||
285 | */ | ||
286 | uint32_t mtu; | ||
287 | |||
288 | /** | ||
289 | * Queue length. | ||
290 | */ | ||
291 | uint64_t q_len; | ||
292 | /** | ||
293 | * Queue priority. | ||
294 | */ | ||
295 | uint32_t priority; | ||
296 | }; | ||
297 | |||
298 | |||
299 | /** | ||
300 | * Internal representation of an address a communicator is | ||
301 | * currently providing for the transport service. | ||
302 | */ | ||
303 | struct GNUNET_TRANSPORT_AddressIdentifier | ||
304 | { | ||
305 | /** | ||
306 | * Kept in a DLL. | ||
307 | */ | ||
308 | struct GNUNET_TRANSPORT_AddressIdentifier *next; | ||
309 | |||
310 | /** | ||
311 | * Kept in a DLL. | ||
312 | */ | ||
313 | struct GNUNET_TRANSPORT_AddressIdentifier *prev; | ||
314 | |||
315 | /** | ||
316 | * Transport handle where the address was added. | ||
317 | */ | ||
318 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch; | ||
319 | |||
320 | /** | ||
321 | * The actual address. | ||
322 | */ | ||
323 | char *address; | ||
324 | |||
325 | /** | ||
326 | * When does the address expire? (Expected lifetime of the | ||
327 | * address.) | ||
328 | */ | ||
329 | struct GNUNET_TIME_Relative expiration; | ||
330 | |||
331 | /** | ||
332 | * Internal UUID for the address used in communication with the | ||
333 | * transport service. | ||
334 | */ | ||
335 | uint32_t aid; | ||
336 | |||
337 | /** | ||
338 | * Network type for the address. | ||
339 | */ | ||
340 | enum GNUNET_NetworkType nt; | ||
341 | }; | ||
342 | |||
343 | |||
344 | /** | ||
345 | * (re)connect our communicator to the transport service | ||
346 | * | ||
347 | * @param ch handle to reconnect | ||
348 | */ | ||
349 | static void | ||
350 | reconnect (struct GNUNET_TRANSPORT_CommunicatorHandle *ch); | ||
351 | |||
352 | |||
353 | /** | ||
354 | * Send message to the transport service about address @a ai | ||
355 | * being now available. | ||
356 | * | ||
357 | * @param ai address to add | ||
358 | */ | ||
359 | static void | ||
360 | send_add_address (struct GNUNET_TRANSPORT_AddressIdentifier *ai) | ||
361 | { | ||
362 | struct GNUNET_MQ_Envelope *env; | ||
363 | struct GNUNET_TRANSPORT_AddAddressMessage *aam; | ||
364 | |||
365 | if (NULL == ai->ch->mq) | ||
366 | return; | ||
367 | env = GNUNET_MQ_msg_extra (aam, | ||
368 | strlen (ai->address) + 1, | ||
369 | GNUNET_MESSAGE_TYPE_TRANSPORT_ADD_ADDRESS); | ||
370 | aam->expiration = GNUNET_TIME_relative_hton (ai->expiration); | ||
371 | aam->nt = htonl ((uint32_t) ai->nt); | ||
372 | memcpy (&aam[1], ai->address, strlen (ai->address) + 1); | ||
373 | GNUNET_MQ_send (ai->ch->mq, env); | ||
374 | } | ||
375 | |||
376 | |||
377 | /** | ||
378 | * Send message to the transport service about address @a ai | ||
379 | * being no longer available. | ||
380 | * | ||
381 | * @param ai address to delete | ||
382 | */ | ||
383 | static void | ||
384 | send_del_address (struct GNUNET_TRANSPORT_AddressIdentifier *ai) | ||
385 | { | ||
386 | struct GNUNET_MQ_Envelope *env; | ||
387 | struct GNUNET_TRANSPORT_DelAddressMessage *dam; | ||
388 | |||
389 | if (NULL == ai->ch->mq) | ||
390 | return; | ||
391 | env = GNUNET_MQ_msg (dam, GNUNET_MESSAGE_TYPE_TRANSPORT_DEL_ADDRESS); | ||
392 | dam->aid = htonl (ai->aid); | ||
393 | GNUNET_MQ_send (ai->ch->mq, env); | ||
394 | } | ||
395 | |||
396 | |||
397 | /** | ||
398 | * Send message to the transport service about queue @a qh | ||
399 | * being now available. | ||
400 | * | ||
401 | * @param qh queue to add | ||
402 | */ | ||
403 | static void | ||
404 | send_add_queue (struct GNUNET_TRANSPORT_QueueHandle *qh) | ||
405 | { | ||
406 | struct GNUNET_MQ_Envelope *env; | ||
407 | struct GNUNET_TRANSPORT_AddQueueMessage *aqm; | ||
408 | |||
409 | if (NULL == qh->ch->mq) | ||
410 | return; | ||
411 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
412 | "Sending `GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_SETUP` message\n"); | ||
413 | env = GNUNET_MQ_msg_extra (aqm, | ||
414 | strlen (qh->address) + 1, | ||
415 | GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_SETUP); | ||
416 | aqm->qid = htonl (qh->queue_id); | ||
417 | aqm->receiver = qh->peer; | ||
418 | aqm->nt = htonl ((uint32_t) qh->nt); | ||
419 | aqm->mtu = htonl (qh->mtu); | ||
420 | aqm->q_len = GNUNET_htonll (qh->q_len); | ||
421 | aqm->priority = htonl (qh->priority); | ||
422 | aqm->cs = htonl ((uint32_t) qh->cs); | ||
423 | memcpy (&aqm[1], qh->address, strlen (qh->address) + 1); | ||
424 | GNUNET_MQ_send (qh->ch->mq, env); | ||
425 | } | ||
426 | |||
427 | |||
428 | /** | ||
429 | * Send message to the transport service about queue @a qh | ||
430 | * updated. | ||
431 | * | ||
432 | * @param qh queue to add | ||
433 | */ | ||
434 | static void | ||
435 | send_update_queue (struct GNUNET_TRANSPORT_QueueHandle *qh) | ||
436 | { | ||
437 | struct GNUNET_MQ_Envelope *env; | ||
438 | struct GNUNET_TRANSPORT_UpdateQueueMessage *uqm; | ||
439 | |||
440 | if (NULL == qh->ch->mq) | ||
441 | return; | ||
442 | env = GNUNET_MQ_msg (uqm, GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_UPDATE); | ||
443 | uqm->qid = htonl (qh->queue_id); | ||
444 | uqm->receiver = qh->peer; | ||
445 | uqm->nt = htonl ((uint32_t) qh->nt); | ||
446 | uqm->mtu = htonl (qh->mtu); | ||
447 | uqm->q_len = GNUNET_htonll (qh->q_len); | ||
448 | uqm->priority = htonl (qh->priority); | ||
449 | uqm->cs = htonl ((uint32_t) qh->cs); | ||
450 | GNUNET_MQ_send (qh->ch->mq, env); | ||
451 | } | ||
452 | |||
453 | |||
454 | /** | ||
455 | * Send message to the transport service about queue @a qh | ||
456 | * being no longer available. | ||
457 | * | ||
458 | * @param qh queue to delete | ||
459 | */ | ||
460 | static void | ||
461 | send_del_queue (struct GNUNET_TRANSPORT_QueueHandle *qh) | ||
462 | { | ||
463 | struct GNUNET_MQ_Envelope *env; | ||
464 | struct GNUNET_TRANSPORT_DelQueueMessage *dqm; | ||
465 | |||
466 | if (NULL == qh->ch->mq) | ||
467 | return; | ||
468 | env = GNUNET_MQ_msg (dqm, GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_TEARDOWN); | ||
469 | dqm->qid = htonl (qh->queue_id); | ||
470 | dqm->receiver = qh->peer; | ||
471 | GNUNET_MQ_send (qh->ch->mq, env); | ||
472 | } | ||
473 | |||
474 | |||
475 | /** | ||
476 | * Disconnect from the transport service. Purges | ||
477 | * all flow control entries as we will no longer receive | ||
478 | * the ACKs. Purges the ack pending entries as the | ||
479 | * transport will no longer expect the confirmations. | ||
480 | * | ||
481 | * @param ch service to disconnect from | ||
482 | */ | ||
483 | static void | ||
484 | disconnect (struct GNUNET_TRANSPORT_CommunicatorHandle *ch) | ||
485 | { | ||
486 | struct FlowControl *fcn; | ||
487 | struct AckPending *apn; | ||
488 | |||
489 | for (struct FlowControl *fc = ch->fc_head; NULL != fc; fc = fcn) | ||
490 | { | ||
491 | fcn = fc->next; | ||
492 | GNUNET_CONTAINER_DLL_remove (ch->fc_head, ch->fc_tail, fc); | ||
493 | fc->cb (fc->cb_cls, GNUNET_SYSERR); | ||
494 | GNUNET_free (fc); | ||
495 | } | ||
496 | for (struct AckPending *ap = ch->ap_head; NULL != ap; ap = apn) | ||
497 | { | ||
498 | apn = ap->next; | ||
499 | GNUNET_CONTAINER_DLL_remove (ch->ap_head, ch->ap_tail, ap); | ||
500 | GNUNET_free (ap); | ||
501 | } | ||
502 | if (NULL == ch->mq) | ||
503 | return; | ||
504 | GNUNET_MQ_destroy (ch->mq); | ||
505 | ch->mq = NULL; | ||
506 | } | ||
507 | |||
508 | |||
509 | /** | ||
510 | * Function called on MQ errors. | ||
511 | */ | ||
512 | static void | ||
513 | error_handler (void *cls, enum GNUNET_MQ_Error error) | ||
514 | { | ||
515 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch = cls; | ||
516 | |||
517 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
518 | "MQ failure %d, reconnecting to transport service.\n", | ||
519 | error); | ||
520 | disconnect (ch); | ||
521 | /* TODO: maybe do this with exponential backoff/delay */ | ||
522 | reconnect (ch); | ||
523 | } | ||
524 | |||
525 | |||
526 | /** | ||
527 | * Transport service acknowledged a message we gave it | ||
528 | * (with flow control enabled). Tell the communicator. | ||
529 | * | ||
530 | * @param cls our `struct GNUNET_TRANSPORT_CommunicatorHandle *` | ||
531 | * @param incoming_ack the ack | ||
532 | */ | ||
533 | static void | ||
534 | handle_incoming_ack ( | ||
535 | void *cls, | ||
536 | const struct GNUNET_TRANSPORT_IncomingMessageAck *incoming_ack) | ||
537 | { | ||
538 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch = cls; | ||
539 | |||
540 | for (struct FlowControl *fc = ch->fc_head; NULL != fc; fc = fc->next) | ||
541 | { | ||
542 | if ((fc->id == incoming_ack->fc_id) && | ||
543 | (0 == memcmp (&fc->sender, | ||
544 | &incoming_ack->sender, | ||
545 | sizeof(struct GNUNET_PeerIdentity)))) | ||
546 | { | ||
547 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
548 | "Done with message with flow control id %" PRIu64 | ||
549 | " for sender %s from sender %s\n", | ||
550 | incoming_ack->fc_id, | ||
551 | GNUNET_i2s (&fc->sender), | ||
552 | GNUNET_i2s (&incoming_ack->sender)); | ||
553 | GNUNET_CONTAINER_DLL_remove (ch->fc_head, ch->fc_tail, fc); | ||
554 | fc->cb (fc->cb_cls, GNUNET_OK); | ||
555 | GNUNET_free (fc); | ||
556 | return; | ||
557 | } | ||
558 | } | ||
559 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
560 | "Message with flow control id %" PRIu64 | ||
561 | " from sender %s not found\n", | ||
562 | incoming_ack->fc_id, | ||
563 | GNUNET_i2s (&incoming_ack->sender)); | ||
564 | GNUNET_break (0); | ||
565 | disconnect (ch); | ||
566 | /* TODO: maybe do this with exponential backoff/delay */ | ||
567 | reconnect (ch); | ||
568 | } | ||
569 | |||
570 | |||
571 | /** | ||
572 | * Transport service wants us to create a queue. Check if @a cq | ||
573 | * is well-formed. | ||
574 | * | ||
575 | * @param cls our `struct GNUNET_TRANSPORT_CommunicatorHandle *` | ||
576 | * @param cq the queue creation request | ||
577 | * @return #GNUNET_OK if @a smt is well-formed | ||
578 | */ | ||
579 | static int | ||
580 | check_create_queue (void *cls, const struct GNUNET_TRANSPORT_CreateQueue *cq) | ||
581 | { | ||
582 | (void) cls; | ||
583 | GNUNET_MQ_check_zero_termination (cq); | ||
584 | return GNUNET_OK; | ||
585 | } | ||
586 | |||
587 | |||
588 | /** | ||
589 | * Transport service wants us to create a queue. Tell the communicator. | ||
590 | * | ||
591 | * @param cls our `struct GNUNET_TRANSPORT_CommunicatorHandle *` | ||
592 | * @param cq the queue creation request | ||
593 | */ | ||
594 | static void | ||
595 | handle_create_queue (void *cls, const struct GNUNET_TRANSPORT_CreateQueue *cq) | ||
596 | { | ||
597 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch = cls; | ||
598 | const char *addr = (const char *) &cq[1]; | ||
599 | struct GNUNET_TRANSPORT_CreateQueueResponse *cqr; | ||
600 | struct GNUNET_MQ_Envelope *env; | ||
601 | int ret = ch->mq_init (ch->mq_init_cls, &cq->receiver, addr); | ||
602 | |||
603 | if (GNUNET_NO == ret) | ||
604 | { | ||
605 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
606 | "Address `%s' is already (beging) connected to.\n", | ||
607 | addr); | ||
608 | env = GNUNET_MQ_msg (cqr, GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE_FAIL); | ||
609 | } | ||
610 | else if (GNUNET_SYSERR == ret) | ||
611 | { | ||
612 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
613 | "Address `%s' invalid for this communicator\n", | ||
614 | addr); | ||
615 | env = GNUNET_MQ_msg (cqr, GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE_FAIL); | ||
616 | } | ||
617 | else | ||
618 | { | ||
619 | env = GNUNET_MQ_msg (cqr, GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE_OK); | ||
620 | } | ||
621 | cqr->request_id = cq->request_id; | ||
622 | GNUNET_MQ_send (ch->mq, env); | ||
623 | } | ||
624 | |||
625 | |||
626 | /** | ||
627 | * Transport service wants us to send a message. Check if @a smt | ||
628 | * is well-formed. | ||
629 | * | ||
630 | * @param cls our `struct GNUNET_TRANSPORT_CommunicatorHandle *` | ||
631 | * @param smt the transmission request | ||
632 | * @return #GNUNET_OK if @a smt is well-formed | ||
633 | */ | ||
634 | static int | ||
635 | check_send_msg (void *cls, const struct GNUNET_TRANSPORT_SendMessageTo *smt) | ||
636 | { | ||
637 | (void) cls; | ||
638 | GNUNET_MQ_check_boxed_message (smt); | ||
639 | return GNUNET_OK; | ||
640 | } | ||
641 | |||
642 | |||
643 | /** | ||
644 | * Notify transport service about @a status of a message with | ||
645 | * @a mid sent to @a receiver. | ||
646 | * | ||
647 | * @param ch handle | ||
648 | * @param status #GNUNET_OK on success, #GNUNET_SYSERR on failure | ||
649 | * @param receiver which peer was the receiver | ||
650 | * @param mid message that the ack is about | ||
651 | */ | ||
652 | static void | ||
653 | send_ack (struct GNUNET_TRANSPORT_CommunicatorHandle *ch, | ||
654 | int status, | ||
655 | const struct GNUNET_PeerIdentity *receiver, | ||
656 | uint64_t mid, | ||
657 | uint32_t qid) | ||
658 | { | ||
659 | struct GNUNET_MQ_Envelope *env; | ||
660 | struct GNUNET_TRANSPORT_SendMessageToAck *ack; | ||
661 | |||
662 | env = GNUNET_MQ_msg (ack, GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_MSG_ACK); | ||
663 | ack->status = htonl (status); | ||
664 | ack->mid = mid; | ||
665 | ack->qid = qid; | ||
666 | ack->receiver = *receiver; | ||
667 | GNUNET_MQ_send (ch->mq, env); | ||
668 | } | ||
669 | |||
670 | |||
671 | /** | ||
672 | * Message queue transmission by communicator was successful, | ||
673 | * notify transport service. | ||
674 | * | ||
675 | * @param cls an `struct AckPending *` | ||
676 | */ | ||
677 | static void | ||
678 | send_ack_cb (void *cls) | ||
679 | { | ||
680 | struct AckPending *ap = cls; | ||
681 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch = ap->ch; | ||
682 | |||
683 | if (NULL != ch->ap_head && NULL != ap) | ||
684 | GNUNET_CONTAINER_DLL_remove (ch->ap_head, ch->ap_tail, ap); | ||
685 | if (NULL != ap) | ||
686 | { | ||
687 | send_ack (ch, GNUNET_OK, &ap->receiver, ap->mid, ap->qid); | ||
688 | GNUNET_free (ap); | ||
689 | } | ||
690 | } | ||
691 | |||
692 | |||
693 | /** | ||
694 | * Transport service wants us to send a message. Tell the communicator. | ||
695 | * | ||
696 | * @param cls our `struct GNUNET_TRANSPORT_CommunicatorHandle *` | ||
697 | * @param smt the transmission request | ||
698 | */ | ||
699 | static void | ||
700 | handle_send_msg (void *cls, const struct GNUNET_TRANSPORT_SendMessageTo *smt) | ||
701 | { | ||
702 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch = cls; | ||
703 | const struct GNUNET_MessageHeader *mh; | ||
704 | struct GNUNET_MQ_Envelope *env; | ||
705 | struct AckPending *ap; | ||
706 | struct GNUNET_TRANSPORT_QueueHandle *qh; | ||
707 | |||
708 | for (qh = ch->queue_head; NULL != qh; qh = qh->next) | ||
709 | if ((qh->queue_id == ntohl (smt->qid)) && | ||
710 | (0 == memcmp (&qh->peer, | ||
711 | &smt->receiver, | ||
712 | sizeof(struct GNUNET_PeerIdentity)))) | ||
713 | break; | ||
714 | if (NULL == qh) | ||
715 | { | ||
716 | /* queue is already gone, tell transport this one failed */ | ||
717 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
718 | "Transmission failed, queue no longer exists.\n"); | ||
719 | send_ack (ch, GNUNET_NO, &smt->receiver, smt->mid, smt->qid); | ||
720 | return; | ||
721 | } | ||
722 | ap = GNUNET_new (struct AckPending); | ||
723 | ap->ch = ch; | ||
724 | ap->receiver = smt->receiver; | ||
725 | ap->mid = smt->mid; | ||
726 | ap->qid = smt->qid; | ||
727 | GNUNET_CONTAINER_DLL_insert (ch->ap_head, ch->ap_tail, ap); | ||
728 | mh = (const struct GNUNET_MessageHeader *) &smt[1]; | ||
729 | env = GNUNET_MQ_msg_copy (mh); | ||
730 | GNUNET_MQ_notify_sent (env, &send_ack_cb, ap); | ||
731 | GNUNET_MQ_send (qh->mq, env); | ||
732 | } | ||
733 | |||
734 | |||
735 | /** | ||
736 | * Transport service gives us backchannel message. Check if @a bi | ||
737 | * is well-formed. | ||
738 | * | ||
739 | * @param cls our `struct GNUNET_TRANSPORT_CommunicatorHandle *` | ||
740 | * @param bi the backchannel message | ||
741 | * @return #GNUNET_OK if @a smt is well-formed | ||
742 | */ | ||
743 | static int | ||
744 | check_backchannel_incoming ( | ||
745 | void *cls, | ||
746 | const struct GNUNET_TRANSPORT_CommunicatorBackchannelIncoming *bi) | ||
747 | { | ||
748 | (void) cls; | ||
749 | GNUNET_MQ_check_boxed_message (bi); | ||
750 | return GNUNET_OK; | ||
751 | } | ||
752 | |||
753 | |||
754 | /** | ||
755 | * Transport service gives us backchannel message. Handle it. | ||
756 | * | ||
757 | * @param cls our `struct GNUNET_TRANSPORT_CommunicatorHandle *` | ||
758 | * @param bi the backchannel message | ||
759 | */ | ||
760 | static void | ||
761 | handle_backchannel_incoming ( | ||
762 | void *cls, | ||
763 | const struct GNUNET_TRANSPORT_CommunicatorBackchannelIncoming *bi) | ||
764 | { | ||
765 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch = cls; | ||
766 | if (NULL != ch->notify_cb) | ||
767 | ch->notify_cb (ch->notify_cb_cls, | ||
768 | &bi->pid, | ||
769 | (const struct GNUNET_MessageHeader *) &bi[1]); | ||
770 | else | ||
771 | GNUNET_log ( | ||
772 | GNUNET_ERROR_TYPE_INFO, | ||
773 | _ ("Dropped backchanel message: handler not provided by communicator\n")); | ||
774 | } | ||
775 | |||
776 | |||
777 | /** | ||
778 | * (re)connect our communicator to the transport service | ||
779 | * | ||
780 | * @param ch handle to reconnect | ||
781 | */ | ||
782 | static void | ||
783 | reconnect (struct GNUNET_TRANSPORT_CommunicatorHandle *ch) | ||
784 | { | ||
785 | struct GNUNET_MQ_MessageHandler handlers[] = | ||
786 | { GNUNET_MQ_hd_fixed_size (incoming_ack, | ||
787 | GNUNET_MESSAGE_TYPE_TRANSPORT_INCOMING_MSG_ACK, | ||
788 | struct GNUNET_TRANSPORT_IncomingMessageAck, | ||
789 | ch), | ||
790 | GNUNET_MQ_hd_var_size (create_queue, | ||
791 | GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE, | ||
792 | struct GNUNET_TRANSPORT_CreateQueue, | ||
793 | ch), | ||
794 | GNUNET_MQ_hd_var_size (send_msg, | ||
795 | GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_MSG, | ||
796 | struct GNUNET_TRANSPORT_SendMessageTo, | ||
797 | ch), | ||
798 | GNUNET_MQ_hd_var_size ( | ||
799 | backchannel_incoming, | ||
800 | GNUNET_MESSAGE_TYPE_TRANSPORT_COMMUNICATOR_BACKCHANNEL_INCOMING, | ||
801 | struct GNUNET_TRANSPORT_CommunicatorBackchannelIncoming, | ||
802 | ch), | ||
803 | GNUNET_MQ_handler_end () }; | ||
804 | struct GNUNET_TRANSPORT_CommunicatorAvailableMessage *cam; | ||
805 | struct GNUNET_MQ_Envelope *env; | ||
806 | |||
807 | ch->mq = | ||
808 | GNUNET_CLIENT_connect (ch->cfg, "transport", handlers, &error_handler, ch); | ||
809 | if (NULL == ch->mq) | ||
810 | return; | ||
811 | env = GNUNET_MQ_msg_extra (cam, | ||
812 | strlen (ch->addr_prefix) + 1, | ||
813 | GNUNET_MESSAGE_TYPE_TRANSPORT_NEW_COMMUNICATOR); | ||
814 | cam->cc = htonl ((uint32_t) ch->cc); | ||
815 | memcpy (&cam[1], ch->addr_prefix, strlen (ch->addr_prefix) + 1); | ||
816 | GNUNET_MQ_send (ch->mq, env); | ||
817 | for (struct GNUNET_TRANSPORT_AddressIdentifier *ai = ch->ai_head; NULL != ai; | ||
818 | ai = ai->next) | ||
819 | send_add_address (ai); | ||
820 | for (struct GNUNET_TRANSPORT_QueueHandle *qh = ch->queue_head; NULL != qh; | ||
821 | qh = qh->next) | ||
822 | send_add_queue (qh); | ||
823 | } | ||
824 | |||
825 | |||
826 | struct GNUNET_TRANSPORT_CommunicatorHandle * | ||
827 | GNUNET_TRANSPORT_communicator_connect ( | ||
828 | const struct GNUNET_CONFIGURATION_Handle *cfg, | ||
829 | const char *config_section, | ||
830 | const char *addr_prefix, | ||
831 | enum GNUNET_TRANSPORT_CommunicatorCharacteristics cc, | ||
832 | GNUNET_TRANSPORT_CommunicatorMqInit mq_init, | ||
833 | void *mq_init_cls, | ||
834 | GNUNET_TRANSPORT_CommunicatorNotify notify_cb, | ||
835 | void *notify_cb_cls) | ||
836 | { | ||
837 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch; | ||
838 | |||
839 | ch = GNUNET_new (struct GNUNET_TRANSPORT_CommunicatorHandle); | ||
840 | ch->cfg = cfg; | ||
841 | ch->config_section = config_section; | ||
842 | ch->addr_prefix = addr_prefix; | ||
843 | ch->mq_init = mq_init; | ||
844 | ch->mq_init_cls = mq_init_cls; | ||
845 | ch->notify_cb = notify_cb; | ||
846 | ch->notify_cb_cls = notify_cb_cls; | ||
847 | ch->cc = cc; | ||
848 | reconnect (ch); | ||
849 | if (GNUNET_OK != | ||
850 | GNUNET_CONFIGURATION_get_value_number (cfg, | ||
851 | config_section, | ||
852 | "MAX_QUEUE_LENGTH", | ||
853 | &ch->max_queue_length)) | ||
854 | ch->max_queue_length = DEFAULT_MAX_QUEUE_LENGTH; | ||
855 | if (NULL == ch->mq) | ||
856 | { | ||
857 | GNUNET_free (ch); | ||
858 | return NULL; | ||
859 | } | ||
860 | return ch; | ||
861 | } | ||
862 | |||
863 | |||
864 | /** | ||
865 | * Disconnect from the transport service. | ||
866 | * | ||
867 | * @param ch handle returned from connect | ||
868 | */ | ||
869 | void | ||
870 | GNUNET_TRANSPORT_communicator_disconnect ( | ||
871 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch) | ||
872 | { | ||
873 | disconnect (ch); | ||
874 | while (NULL != ch->ai_head) | ||
875 | { | ||
876 | GNUNET_break (0); /* communicator forgot to remove address, warn! */ | ||
877 | GNUNET_TRANSPORT_communicator_address_remove (ch->ai_head); | ||
878 | } | ||
879 | GNUNET_free (ch); | ||
880 | } | ||
881 | |||
882 | |||
883 | /* ************************* Receiving *************************** */ | ||
884 | |||
885 | |||
886 | int | ||
887 | GNUNET_TRANSPORT_communicator_receive ( | ||
888 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch, | ||
889 | const struct GNUNET_PeerIdentity *sender, | ||
890 | const struct GNUNET_MessageHeader *msg, | ||
891 | struct GNUNET_TIME_Relative expected_addr_validity, | ||
892 | GNUNET_TRANSPORT_MessageCompletedCallback cb, | ||
893 | void *cb_cls) | ||
894 | { | ||
895 | struct GNUNET_MQ_Envelope *env; | ||
896 | struct GNUNET_TRANSPORT_IncomingMessage *im; | ||
897 | uint16_t msize; | ||
898 | |||
899 | |||
900 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
901 | "communicator receive\n"); | ||
902 | |||
903 | if (NULL == ch->mq) | ||
904 | return GNUNET_SYSERR; | ||
905 | if ((NULL == cb) && (GNUNET_MQ_get_length (ch->mq) >= ch->max_queue_length)) | ||
906 | { | ||
907 | GNUNET_log ( | ||
908 | GNUNET_ERROR_TYPE_WARNING, | ||
909 | "Dropping message: transport is too slow, queue length %llu exceeded\n", | ||
910 | ch->max_queue_length); | ||
911 | return GNUNET_NO; | ||
912 | } | ||
913 | |||
914 | msize = ntohs (msg->size); | ||
915 | env = | ||
916 | GNUNET_MQ_msg_extra (im, msize, GNUNET_MESSAGE_TYPE_TRANSPORT_INCOMING_MSG); | ||
917 | if (NULL == env) | ||
918 | { | ||
919 | GNUNET_break (0); | ||
920 | return GNUNET_SYSERR; | ||
921 | } | ||
922 | im->expected_address_validity = | ||
923 | GNUNET_TIME_relative_hton (expected_addr_validity); | ||
924 | im->sender = *sender; | ||
925 | // FIXME: this is expensive, would be better if we would | ||
926 | // re-design the API to allow us to create the envelope first, | ||
927 | // and then have the application fill in the body so we do | ||
928 | // not have to memcpy() | ||
929 | memcpy (&im[1], msg, msize); | ||
930 | im->fc_on = htonl (GNUNET_NO); | ||
931 | if (NULL != cb) | ||
932 | { | ||
933 | struct FlowControl *fc; | ||
934 | |||
935 | im->fc_on = htonl (GNUNET_YES); | ||
936 | im->fc_id = ch->fc_gen++; | ||
937 | fc = GNUNET_new (struct FlowControl); | ||
938 | fc->sender = *sender; | ||
939 | fc->id = im->fc_id; | ||
940 | fc->cb = cb; | ||
941 | fc->cb_cls = cb_cls; | ||
942 | GNUNET_CONTAINER_DLL_insert (ch->fc_head, ch->fc_tail, fc); | ||
943 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
944 | "Created flow control id %" PRIu64 " for sender %s\n", | ||
945 | fc->id, | ||
946 | GNUNET_i2s (&fc->sender)); | ||
947 | } | ||
948 | GNUNET_MQ_send (ch->mq, env); | ||
949 | return GNUNET_OK; | ||
950 | } | ||
951 | |||
952 | |||
953 | /* ************************* Discovery *************************** */ | ||
954 | |||
955 | |||
956 | struct GNUNET_TRANSPORT_QueueHandle * | ||
957 | GNUNET_TRANSPORT_communicator_mq_add ( | ||
958 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch, | ||
959 | const struct GNUNET_PeerIdentity *peer, | ||
960 | const char *address, | ||
961 | uint32_t mtu, | ||
962 | uint64_t q_len, | ||
963 | uint32_t priority, | ||
964 | enum GNUNET_NetworkType nt, | ||
965 | enum GNUNET_TRANSPORT_ConnectionStatus cs, | ||
966 | struct GNUNET_MQ_Handle *mq) | ||
967 | { | ||
968 | struct GNUNET_TRANSPORT_QueueHandle *qh; | ||
969 | |||
970 | // Do not notify the service if there is no intial capacity. | ||
971 | GNUNET_assert (0 < q_len); | ||
972 | |||
973 | qh = GNUNET_new (struct GNUNET_TRANSPORT_QueueHandle); | ||
974 | qh->ch = ch; | ||
975 | qh->peer = *peer; | ||
976 | qh->address = GNUNET_strdup (address); | ||
977 | qh->nt = nt; | ||
978 | qh->mtu = mtu; | ||
979 | qh->q_len = q_len; | ||
980 | qh->priority = priority; | ||
981 | qh->cs = cs; | ||
982 | qh->mq = mq; | ||
983 | qh->queue_id = ch->queue_gen++; | ||
984 | GNUNET_CONTAINER_DLL_insert (ch->queue_head, ch->queue_tail, qh); | ||
985 | send_add_queue (qh); | ||
986 | return qh; | ||
987 | } | ||
988 | |||
989 | |||
990 | void | ||
991 | GNUNET_TRANSPORT_communicator_mq_update ( | ||
992 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch, | ||
993 | const struct GNUNET_TRANSPORT_QueueHandle *u_qh, | ||
994 | uint64_t q_len, | ||
995 | uint32_t priority) | ||
996 | { | ||
997 | struct GNUNET_TRANSPORT_QueueHandle *qh; | ||
998 | |||
999 | for (qh = ch->queue_head; NULL != qh; qh = qh->next) | ||
1000 | { | ||
1001 | if (u_qh == qh) | ||
1002 | break; | ||
1003 | } | ||
1004 | GNUNET_assert (NULL != qh); | ||
1005 | qh->q_len = q_len; | ||
1006 | qh->priority = priority; | ||
1007 | send_update_queue (qh); | ||
1008 | } | ||
1009 | |||
1010 | |||
1011 | /** | ||
1012 | * Notify transport service that an MQ became unavailable due to a | ||
1013 | * disconnect or timeout. | ||
1014 | * | ||
1015 | * @param qh handle for the queue that must be invalidated | ||
1016 | */ | ||
1017 | void | ||
1018 | GNUNET_TRANSPORT_communicator_mq_del (struct GNUNET_TRANSPORT_QueueHandle *qh) | ||
1019 | { | ||
1020 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch = qh->ch; | ||
1021 | |||
1022 | send_del_queue (qh); | ||
1023 | GNUNET_CONTAINER_DLL_remove (ch->queue_head, ch->queue_tail, qh); | ||
1024 | GNUNET_MQ_destroy (qh->mq); | ||
1025 | GNUNET_free (qh->address); | ||
1026 | GNUNET_free (qh); | ||
1027 | } | ||
1028 | |||
1029 | |||
1030 | /** | ||
1031 | * Notify transport service about an address that this communicator | ||
1032 | * provides for this peer. | ||
1033 | * | ||
1034 | * @param ch connection to transport service | ||
1035 | * @param address our address in human-readable format, 0-terminated, UTF-8 | ||
1036 | * @param nt which network type does the address belong to? | ||
1037 | * @param expiration when does the communicator forsee this address expiring? | ||
1038 | */ | ||
1039 | struct GNUNET_TRANSPORT_AddressIdentifier * | ||
1040 | GNUNET_TRANSPORT_communicator_address_add ( | ||
1041 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch, | ||
1042 | const char *address, | ||
1043 | enum GNUNET_NetworkType nt, | ||
1044 | struct GNUNET_TIME_Relative expiration) | ||
1045 | { | ||
1046 | struct GNUNET_TRANSPORT_AddressIdentifier *ai; | ||
1047 | |||
1048 | ai = GNUNET_new (struct GNUNET_TRANSPORT_AddressIdentifier); | ||
1049 | ai->ch = ch; | ||
1050 | ai->address = GNUNET_strdup (address); | ||
1051 | ai->nt = nt; | ||
1052 | ai->expiration = expiration; | ||
1053 | ai->aid = ch->aid_gen++; | ||
1054 | GNUNET_CONTAINER_DLL_insert (ch->ai_head, ch->ai_tail, ai); | ||
1055 | send_add_address (ai); | ||
1056 | return ai; | ||
1057 | } | ||
1058 | |||
1059 | |||
1060 | /** | ||
1061 | * Notify transport service about an address that this communicator no | ||
1062 | * longer provides for this peer. | ||
1063 | * | ||
1064 | * @param ai address that is no longer provided | ||
1065 | */ | ||
1066 | void | ||
1067 | GNUNET_TRANSPORT_communicator_address_remove ( | ||
1068 | struct GNUNET_TRANSPORT_AddressIdentifier *ai) | ||
1069 | { | ||
1070 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch = ai->ch; | ||
1071 | |||
1072 | send_del_address (ai); | ||
1073 | GNUNET_CONTAINER_DLL_remove (ch->ai_head, ch->ai_tail, ai); | ||
1074 | GNUNET_free (ai->address); | ||
1075 | GNUNET_free (ai); | ||
1076 | ai = NULL; | ||
1077 | } | ||
1078 | |||
1079 | |||
1080 | /** | ||
1081 | * Notify transport service that this communicator no longer provides all its addresses for this peer. | ||
1082 | * | ||
1083 | * @param ch The communicator handle. | ||
1084 | */ | ||
1085 | void | ||
1086 | GNUNET_TRANSPORT_communicator_address_remove_all ( | ||
1087 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch) | ||
1088 | { | ||
1089 | struct GNUNET_TRANSPORT_AddressIdentifier *ai = ch->ai_head; | ||
1090 | while (NULL != ai) | ||
1091 | { | ||
1092 | struct GNUNET_TRANSPORT_AddressIdentifier *ai_next = ai->next; | ||
1093 | GNUNET_TRANSPORT_communicator_address_remove (ai); | ||
1094 | ai = ai_next; | ||
1095 | } | ||
1096 | } | ||
1097 | |||
1098 | |||
1099 | /* ************************* Backchannel *************************** */ | ||
1100 | |||
1101 | |||
1102 | void | ||
1103 | GNUNET_TRANSPORT_communicator_notify ( | ||
1104 | struct GNUNET_TRANSPORT_CommunicatorHandle *ch, | ||
1105 | const struct GNUNET_PeerIdentity *pid, | ||
1106 | const char *comm, | ||
1107 | const struct GNUNET_MessageHeader *header) | ||
1108 | { | ||
1109 | struct GNUNET_MQ_Envelope *env; | ||
1110 | struct GNUNET_TRANSPORT_CommunicatorBackchannel *cb; | ||
1111 | size_t slen = strlen (comm) + 1; | ||
1112 | uint16_t mlen = ntohs (header->size); | ||
1113 | |||
1114 | GNUNET_assert (mlen + slen + sizeof(*cb) < UINT16_MAX); | ||
1115 | env = | ||
1116 | GNUNET_MQ_msg_extra (cb, | ||
1117 | slen + mlen, | ||
1118 | GNUNET_MESSAGE_TYPE_TRANSPORT_COMMUNICATOR_BACKCHANNEL); | ||
1119 | cb->pid = *pid; | ||
1120 | memcpy (&cb[1], header, mlen); | ||
1121 | memcpy (((char *) &cb[1]) + mlen, comm, slen); | ||
1122 | GNUNET_MQ_send (ch->mq, env); | ||
1123 | } | ||
1124 | |||
1125 | |||
1126 | /* end of transport_api2_communication.c */ | ||
diff --git a/src/service/transport/transport_api2_core.c b/src/service/transport/transport_api2_core.c new file mode 100644 index 000000000..598eef184 --- /dev/null +++ b/src/service/transport/transport_api2_core.c | |||
@@ -0,0 +1,845 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2009-2013, 2016, 2018 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/transport_api_core.c | ||
23 | * @brief library to access the transport service for message exchange | ||
24 | * @author Christian Grothoff | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_util_lib.h" | ||
28 | #include "gnunet_constants.h" | ||
29 | #include "gnunet_arm_service.h" | ||
30 | #include "gnunet_protocols.h" | ||
31 | #include "gnunet_transport_core_service.h" | ||
32 | #include "transport.h" | ||
33 | |||
34 | #define LOG(kind, ...) GNUNET_log_from (kind, "transport-api-core", __VA_ARGS__) | ||
35 | |||
36 | /** | ||
37 | * How large to start with for the hashmap of neighbours. | ||
38 | */ | ||
39 | #define STARTING_NEIGHBOURS_SIZE 16 | ||
40 | |||
41 | /** | ||
42 | * Window size. How many messages to the same target do we pass | ||
43 | * to TRANSPORT without a SEND_OK in between? Small values limit | ||
44 | * thoughput, large values will increase latency. | ||
45 | * | ||
46 | * FIXME-OPTIMIZE: find out what good values are experimentally, | ||
47 | * maybe set adaptively (i.e. to observed available bandwidth). | ||
48 | */ | ||
49 | #define SEND_WINDOW_SIZE 4 | ||
50 | |||
51 | |||
52 | /** | ||
53 | * Entry in hash table of all of our current (connected) neighbours. | ||
54 | */ | ||
55 | struct Neighbour | ||
56 | { | ||
57 | /** | ||
58 | * Identity of this neighbour. | ||
59 | */ | ||
60 | struct GNUNET_PeerIdentity id; | ||
61 | |||
62 | /** | ||
63 | * Overall transport handle. | ||
64 | */ | ||
65 | struct GNUNET_TRANSPORT_CoreHandle *h; | ||
66 | |||
67 | /** | ||
68 | * Active message queue for the peer. | ||
69 | */ | ||
70 | struct GNUNET_MQ_Handle *mq; | ||
71 | |||
72 | /** | ||
73 | * Envelope with the message we are currently transmitting (or NULL). | ||
74 | */ | ||
75 | struct GNUNET_MQ_Envelope *env; | ||
76 | |||
77 | /** | ||
78 | * Closure for @e mq handlers. | ||
79 | */ | ||
80 | void *handlers_cls; | ||
81 | |||
82 | /** | ||
83 | * How many messages can we still send to this peer before we should | ||
84 | * throttle? | ||
85 | */ | ||
86 | unsigned int ready_window; | ||
87 | |||
88 | /** | ||
89 | * Used to indicate our status if @e env is non-NULL. Set to | ||
90 | * #GNUNET_YES if we did pass a message to the MQ and are waiting | ||
91 | * for the call to #notify_send_done(). Set to #GNUNET_NO if the @e | ||
92 | * ready_window is 0 and @e env is waiting for a | ||
93 | * #GNUNET_MESSAGE_TYPE_TRANSPORT_RECV_OK? | ||
94 | */ | ||
95 | int16_t awaiting_done; | ||
96 | |||
97 | /** | ||
98 | * Size of the message in @e env. | ||
99 | */ | ||
100 | uint16_t env_size; | ||
101 | }; | ||
102 | |||
103 | |||
104 | /** | ||
105 | * Handle for the transport service (includes all of the | ||
106 | * state for the transport service). | ||
107 | */ | ||
108 | struct GNUNET_TRANSPORT_CoreHandle | ||
109 | { | ||
110 | /** | ||
111 | * Closure for the callbacks. | ||
112 | */ | ||
113 | void *cls; | ||
114 | |||
115 | /** | ||
116 | * Functions to call for received data (template for | ||
117 | * new message queues). | ||
118 | */ | ||
119 | struct GNUNET_MQ_MessageHandler *handlers; | ||
120 | |||
121 | /** | ||
122 | * function to call on connect events | ||
123 | */ | ||
124 | GNUNET_TRANSPORT_NotifyConnect nc_cb; | ||
125 | |||
126 | /** | ||
127 | * function to call on disconnect events | ||
128 | */ | ||
129 | GNUNET_TRANSPORT_NotifyDisconnect nd_cb; | ||
130 | |||
131 | /** | ||
132 | * My client connection to the transport service. | ||
133 | */ | ||
134 | struct GNUNET_MQ_Handle *mq; | ||
135 | |||
136 | /** | ||
137 | * My configuration. | ||
138 | */ | ||
139 | const struct GNUNET_CONFIGURATION_Handle *cfg; | ||
140 | |||
141 | /** | ||
142 | * Hash map of the current connected neighbours of this peer. | ||
143 | * Maps peer identities to `struct Neighbour` entries. | ||
144 | */ | ||
145 | struct GNUNET_CONTAINER_MultiPeerMap *neighbours; | ||
146 | |||
147 | /** | ||
148 | * Peer identity as assumed by this process, or all zeros. | ||
149 | */ | ||
150 | struct GNUNET_PeerIdentity self; | ||
151 | |||
152 | /** | ||
153 | * ID of the task trying to reconnect to the service. | ||
154 | */ | ||
155 | struct GNUNET_SCHEDULER_Task *reconnect_task; | ||
156 | |||
157 | /** | ||
158 | * Delay until we try to reconnect. | ||
159 | */ | ||
160 | struct GNUNET_TIME_Relative reconnect_delay; | ||
161 | |||
162 | /** | ||
163 | * Transport connection started at. | ||
164 | */ | ||
165 | struct GNUNET_TIME_Absolute restarted_at; | ||
166 | |||
167 | /** | ||
168 | * Should we check that @e self matches what the service thinks? | ||
169 | * (if #GNUNET_NO, then @e self is all zeros!). | ||
170 | */ | ||
171 | int check_self; | ||
172 | }; | ||
173 | |||
174 | |||
175 | /** | ||
176 | * Function that will schedule the job that will try | ||
177 | * to connect us again to the client. | ||
178 | * | ||
179 | * @param h transport service to reconnect | ||
180 | */ | ||
181 | static void | ||
182 | disconnect_and_schedule_reconnect (struct GNUNET_TRANSPORT_CoreHandle *h); | ||
183 | |||
184 | |||
185 | /** | ||
186 | * Get the neighbour list entry for the given peer | ||
187 | * | ||
188 | * @param h our context | ||
189 | * @param peer peer to look up | ||
190 | * @return NULL if no such peer entry exists | ||
191 | */ | ||
192 | static struct Neighbour * | ||
193 | neighbour_find (struct GNUNET_TRANSPORT_CoreHandle *h, | ||
194 | const struct GNUNET_PeerIdentity *peer) | ||
195 | { | ||
196 | return GNUNET_CONTAINER_multipeermap_get (h->neighbours, peer); | ||
197 | } | ||
198 | |||
199 | |||
200 | /** | ||
201 | * Iterator over hash map entries, for deleting state of a neighbour. | ||
202 | * | ||
203 | * @param cls the `struct GNUNET_TRANSPORT_CoreHandle *` | ||
204 | * @param key peer identity | ||
205 | * @param value value in the hash map, the neighbour entry to delete | ||
206 | * @return #GNUNET_YES if we should continue to | ||
207 | * iterate, | ||
208 | * #GNUNET_NO if not. | ||
209 | */ | ||
210 | static int | ||
211 | neighbour_delete (void *cls, const struct GNUNET_PeerIdentity *key, void *value) | ||
212 | { | ||
213 | struct GNUNET_TRANSPORT_CoreHandle *handle = cls; | ||
214 | struct Neighbour *n = value; | ||
215 | |||
216 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
217 | "Dropping entry for neighbour `%s'.\n", | ||
218 | GNUNET_i2s (key)); | ||
219 | if (NULL != handle->nd_cb) | ||
220 | handle->nd_cb (handle->cls, &n->id, n->handlers_cls); | ||
221 | if (NULL != n->env) | ||
222 | { | ||
223 | GNUNET_MQ_send_cancel (n->env); | ||
224 | n->env = NULL; | ||
225 | } | ||
226 | GNUNET_MQ_destroy (n->mq); | ||
227 | GNUNET_assert (NULL == n->mq); | ||
228 | GNUNET_assert ( | ||
229 | GNUNET_YES == | ||
230 | GNUNET_CONTAINER_multipeermap_remove (handle->neighbours, key, n)); | ||
231 | GNUNET_free (n); | ||
232 | return GNUNET_YES; | ||
233 | } | ||
234 | |||
235 | |||
236 | /** | ||
237 | * Generic error handler, called with the appropriate | ||
238 | * error code and the same closure specified at the creation of | ||
239 | * the message queue. | ||
240 | * Not every message queue implementation supports an error handler. | ||
241 | * | ||
242 | * @param cls closure with the `struct GNUNET_TRANSPORT_CoreHandle *` | ||
243 | * @param error error code | ||
244 | */ | ||
245 | static void | ||
246 | mq_error_handler (void *cls, enum GNUNET_MQ_Error error) | ||
247 | { | ||
248 | struct GNUNET_TRANSPORT_CoreHandle *h = cls; | ||
249 | |||
250 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
251 | "Error %u received from transport service, disconnecting temporarily.\n", | ||
252 | error); | ||
253 | disconnect_and_schedule_reconnect (h); | ||
254 | } | ||
255 | |||
256 | |||
257 | /** | ||
258 | * A message from the handler's message queue to a neighbour was | ||
259 | * transmitted. Now trigger (possibly delayed) notification of the | ||
260 | * neighbour's message queue that we are done and thus ready for | ||
261 | * the next message. Note that the MQ being ready is independent | ||
262 | * of the send window, as we may queue many messages and simply | ||
263 | * not pass them to TRANSPORT if the send window is insufficient. | ||
264 | * | ||
265 | * @param cls the `struct Neighbour` where the message was sent | ||
266 | */ | ||
267 | static void | ||
268 | notify_send_done (void *cls) | ||
269 | { | ||
270 | struct Neighbour *n = cls; | ||
271 | |||
272 | n->awaiting_done = GNUNET_NO; | ||
273 | n->env = NULL; | ||
274 | if (0 < n->ready_window) | ||
275 | GNUNET_MQ_impl_send_continue (n->mq); | ||
276 | } | ||
277 | |||
278 | |||
279 | /** | ||
280 | * We have an envelope waiting for transmission at @a n, and | ||
281 | * our transmission window is positive. Perform the transmission. | ||
282 | * | ||
283 | * @param n neighbour to perform transmission for | ||
284 | */ | ||
285 | static void | ||
286 | do_send (struct Neighbour *n) | ||
287 | { | ||
288 | GNUNET_assert (0 < n->ready_window); | ||
289 | GNUNET_assert (NULL != n->env); | ||
290 | n->ready_window--; | ||
291 | n->awaiting_done = GNUNET_YES; | ||
292 | GNUNET_MQ_notify_sent (n->env, ¬ify_send_done, n); | ||
293 | GNUNET_MQ_send (n->h->mq, n->env); | ||
294 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
295 | "Passed message of type %u for neighbour `%s' to TRANSPORT. ready_window %u\n", | ||
296 | ntohs (GNUNET_MQ_env_get_msg (n->env)->type), | ||
297 | GNUNET_i2s (&n->id), | ||
298 | n->ready_window); | ||
299 | } | ||
300 | |||
301 | |||
302 | /** | ||
303 | * Implement sending functionality of a message queue. | ||
304 | * Called one message at a time. Should send the @a msg | ||
305 | * to the transport service and then notify the queue | ||
306 | * once we are ready for the next one. | ||
307 | * | ||
308 | * @param mq the message queue | ||
309 | * @param msg the message to send | ||
310 | * @param impl_state state of the implementation | ||
311 | */ | ||
312 | static void | ||
313 | mq_send_impl (struct GNUNET_MQ_Handle *mq, | ||
314 | const struct GNUNET_MessageHeader *msg, | ||
315 | void *impl_state) | ||
316 | { | ||
317 | struct Neighbour *n = impl_state; | ||
318 | struct OutboundMessage *obm; | ||
319 | uint16_t msize; | ||
320 | |||
321 | msize = ntohs (msg->size); | ||
322 | if (msize >= GNUNET_MAX_MESSAGE_SIZE - sizeof(*obm)) | ||
323 | { | ||
324 | GNUNET_break (0); | ||
325 | GNUNET_MQ_impl_send_continue (mq); | ||
326 | return; | ||
327 | } | ||
328 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
329 | "CORE requested transmission of message of type %u to neighbour `%s'.\n", | ||
330 | ntohs (msg->type), | ||
331 | GNUNET_i2s (&n->id)); | ||
332 | |||
333 | GNUNET_assert (NULL == n->env); | ||
334 | n->env = | ||
335 | GNUNET_MQ_msg_nested_mh (obm, GNUNET_MESSAGE_TYPE_TRANSPORT_SEND, msg); | ||
336 | n->env_size = ntohs (msg->size); | ||
337 | { | ||
338 | struct GNUNET_MQ_Envelope *env; | ||
339 | |||
340 | env = GNUNET_MQ_get_current_envelope (mq); | ||
341 | obm->priority = htonl ((uint32_t) GNUNET_MQ_env_get_options (env)); | ||
342 | } | ||
343 | obm->peer = n->id; | ||
344 | if (0 == n->ready_window) | ||
345 | { | ||
346 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
347 | "Flow control delays transmission to CORE until we see SEND_OK.\n"); | ||
348 | return; /* can't send yet, need to wait for SEND_OK */ | ||
349 | } | ||
350 | do_send (n); | ||
351 | } | ||
352 | |||
353 | |||
354 | /** | ||
355 | * Handle destruction of a message queue. Implementations must not | ||
356 | * free @a mq, but should take care of @a impl_state. | ||
357 | * | ||
358 | * @param mq the message queue to destroy | ||
359 | * @param impl_state state of the implementation | ||
360 | */ | ||
361 | static void | ||
362 | mq_destroy_impl (struct GNUNET_MQ_Handle *mq, void *impl_state) | ||
363 | { | ||
364 | struct Neighbour *n = impl_state; | ||
365 | |||
366 | GNUNET_assert (mq == n->mq); | ||
367 | n->mq = NULL; | ||
368 | } | ||
369 | |||
370 | |||
371 | /** | ||
372 | * Implementation function that cancels the currently sent message. | ||
373 | * Should basically undo whatever #mq_send_impl() did. | ||
374 | * | ||
375 | * @param mq message queue | ||
376 | * @param impl_state state specific to the implementation | ||
377 | */ | ||
378 | static void | ||
379 | mq_cancel_impl (struct GNUNET_MQ_Handle *mq, void *impl_state) | ||
380 | { | ||
381 | struct Neighbour *n = impl_state; | ||
382 | |||
383 | n->ready_window++; | ||
384 | if (GNUNET_YES == n->awaiting_done) | ||
385 | { | ||
386 | GNUNET_MQ_send_cancel (n->env); | ||
387 | n->env = NULL; | ||
388 | n->awaiting_done = GNUNET_NO; | ||
389 | } | ||
390 | else | ||
391 | { | ||
392 | GNUNET_assert (0 == n->ready_window); | ||
393 | n->env = NULL; | ||
394 | } | ||
395 | } | ||
396 | |||
397 | |||
398 | /** | ||
399 | * We had an error processing a message we forwarded from a peer to | ||
400 | * the CORE service. We should just complain about it but otherwise | ||
401 | * continue processing. | ||
402 | * | ||
403 | * @param cls closure | ||
404 | * @param error error code | ||
405 | */ | ||
406 | static void | ||
407 | peer_mq_error_handler (void *cls, enum GNUNET_MQ_Error error) | ||
408 | { | ||
409 | struct Neighbour *n = cls; | ||
410 | |||
411 | if (GNUNET_MQ_ERROR_MALFORMED == error) | ||
412 | GNUNET_break_op (0); | ||
413 | //TODO Look into bug #7887 | ||
414 | |||
415 | GNUNET_TRANSPORT_core_receive_continue (n->h, &n->id); | ||
416 | } | ||
417 | |||
418 | |||
419 | /** | ||
420 | * Function we use for handling incoming connect messages. | ||
421 | * | ||
422 | * @param cls closure, a `struct GNUNET_TRANSPORT_Handle *` | ||
423 | * @param cim message received | ||
424 | */ | ||
425 | static void | ||
426 | handle_connect (void *cls, const struct ConnectInfoMessage *cim) | ||
427 | { | ||
428 | struct GNUNET_TRANSPORT_CoreHandle *h = cls; | ||
429 | struct Neighbour *n; | ||
430 | |||
431 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
432 | "Receiving CONNECT message for `%s'\n", | ||
433 | GNUNET_i2s (&cim->id)); | ||
434 | n = neighbour_find (h, &cim->id); | ||
435 | if (NULL != n) | ||
436 | { | ||
437 | GNUNET_break (0); | ||
438 | disconnect_and_schedule_reconnect (h); | ||
439 | return; | ||
440 | } | ||
441 | n = GNUNET_new (struct Neighbour); | ||
442 | n->id = cim->id; | ||
443 | n->h = h; | ||
444 | n->ready_window = SEND_WINDOW_SIZE; | ||
445 | GNUNET_assert (GNUNET_OK == | ||
446 | GNUNET_CONTAINER_multipeermap_put ( | ||
447 | h->neighbours, | ||
448 | &n->id, | ||
449 | n, | ||
450 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)); | ||
451 | |||
452 | n->mq = GNUNET_MQ_queue_for_callbacks (&mq_send_impl, | ||
453 | &mq_destroy_impl, | ||
454 | &mq_cancel_impl, | ||
455 | n, | ||
456 | h->handlers, | ||
457 | &peer_mq_error_handler, | ||
458 | n); | ||
459 | if (NULL != h->nc_cb) | ||
460 | { | ||
461 | n->handlers_cls = h->nc_cb (h->cls, &n->id, n->mq); | ||
462 | GNUNET_MQ_set_handlers_closure (n->mq, n->handlers_cls); | ||
463 | } | ||
464 | } | ||
465 | |||
466 | |||
467 | /** | ||
468 | * Function we use for handling incoming disconnect messages. | ||
469 | * | ||
470 | * @param cls closure, a `struct GNUNET_TRANSPORT_CoreHandle *` | ||
471 | * @param dim message received | ||
472 | */ | ||
473 | static void | ||
474 | handle_disconnect (void *cls, const struct DisconnectInfoMessage *dim) | ||
475 | { | ||
476 | struct GNUNET_TRANSPORT_CoreHandle *h = cls; | ||
477 | struct Neighbour *n; | ||
478 | |||
479 | GNUNET_break (ntohl (dim->reserved) == 0); | ||
480 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
481 | "Receiving DISCONNECT message for `%s'.\n", | ||
482 | GNUNET_i2s (&dim->peer)); | ||
483 | n = neighbour_find (h, &dim->peer); | ||
484 | if (NULL == n) | ||
485 | { | ||
486 | GNUNET_break (0); | ||
487 | disconnect_and_schedule_reconnect (h); | ||
488 | return; | ||
489 | } | ||
490 | GNUNET_assert (GNUNET_YES == neighbour_delete (h, &dim->peer, n)); | ||
491 | } | ||
492 | |||
493 | |||
494 | /** | ||
495 | * Function we use for handling incoming send-ok messages. | ||
496 | * | ||
497 | * @param cls closure, a `struct GNUNET_TRANSPORT_CoreHandle *` | ||
498 | * @param okm message received | ||
499 | */ | ||
500 | static void | ||
501 | handle_send_ok (void *cls, const struct SendOkMessage *okm) | ||
502 | { | ||
503 | struct GNUNET_TRANSPORT_CoreHandle *h = cls; | ||
504 | struct Neighbour *n; | ||
505 | |||
506 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
507 | "Receiving SEND_OK message for transmission to %s\n", | ||
508 | GNUNET_i2s (&okm->peer)); | ||
509 | |||
510 | n = neighbour_find (h, &okm->peer); | ||
511 | |||
512 | if (NULL == n) | ||
513 | { | ||
514 | /* We should never get a 'SEND_OK' for a peer that we are not | ||
515 | connected to */ | ||
516 | GNUNET_break (0); | ||
517 | disconnect_and_schedule_reconnect (h); | ||
518 | return; | ||
519 | } | ||
520 | |||
521 | if ((GNUNET_NO == n->awaiting_done) && | ||
522 | (NULL != n->env) && | ||
523 | (0 == n->ready_window)) | ||
524 | { | ||
525 | n->ready_window++; | ||
526 | do_send (n); | ||
527 | return; | ||
528 | } | ||
529 | else if ((GNUNET_NO == n->awaiting_done) && | ||
530 | (0 == n->ready_window)) | ||
531 | { | ||
532 | n->ready_window++; | ||
533 | GNUNET_MQ_impl_send_continue (n->mq); | ||
534 | return; | ||
535 | } | ||
536 | n->ready_window++; | ||
537 | } | ||
538 | |||
539 | |||
540 | /** | ||
541 | * Function we use for checking incoming "inbound" messages. | ||
542 | * | ||
543 | * @param cls closure, a `struct GNUNET_TRANSPORT_CoreHandle *` | ||
544 | * @param im message received | ||
545 | */ | ||
546 | static int | ||
547 | check_recv (void *cls, const struct InboundMessage *im) | ||
548 | { | ||
549 | const struct GNUNET_MessageHeader *imm; | ||
550 | uint16_t size; | ||
551 | |||
552 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
553 | "check_recv\n"); | ||
554 | size = ntohs (im->header.size) - sizeof(*im); | ||
555 | if (size < sizeof(struct GNUNET_MessageHeader)) | ||
556 | { | ||
557 | GNUNET_break (0); | ||
558 | return GNUNET_SYSERR; | ||
559 | } | ||
560 | imm = (const struct GNUNET_MessageHeader *) &im[1]; | ||
561 | if (ntohs (imm->size) != size) | ||
562 | { | ||
563 | GNUNET_break (0); | ||
564 | return GNUNET_SYSERR; | ||
565 | } | ||
566 | return GNUNET_OK; | ||
567 | } | ||
568 | |||
569 | |||
570 | /** | ||
571 | * Function we use for handling incoming messages. | ||
572 | * | ||
573 | * @param cls closure, a `struct GNUNET_TRANSPORT_CoreHandle *` | ||
574 | * @param im message received | ||
575 | */ | ||
576 | static void | ||
577 | handle_recv (void *cls, const struct InboundMessage *im) | ||
578 | { | ||
579 | struct GNUNET_TRANSPORT_CoreHandle *h = cls; | ||
580 | const struct GNUNET_MessageHeader *imm = | ||
581 | (const struct GNUNET_MessageHeader *) &im[1]; | ||
582 | struct Neighbour *n; | ||
583 | |||
584 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
585 | "Received message of type %u with %u bytes from `%s'.\n", | ||
586 | (unsigned int) ntohs (imm->type), | ||
587 | (unsigned int) ntohs (imm->size), | ||
588 | GNUNET_i2s (&im->peer)); | ||
589 | n = neighbour_find (h, &im->peer); | ||
590 | if (NULL == n) | ||
591 | { | ||
592 | GNUNET_break (0); | ||
593 | disconnect_and_schedule_reconnect (h); | ||
594 | return; | ||
595 | } | ||
596 | GNUNET_MQ_inject_message (n->mq, imm); | ||
597 | } | ||
598 | |||
599 | |||
600 | /** | ||
601 | * Try again to connect to transport service. | ||
602 | * | ||
603 | * @param cls the handle to the transport service | ||
604 | */ | ||
605 | static void | ||
606 | reconnect (void *cls) | ||
607 | { | ||
608 | struct GNUNET_TRANSPORT_CoreHandle *h = cls; | ||
609 | struct GNUNET_MQ_MessageHandler handlers[] = | ||
610 | { GNUNET_MQ_hd_fixed_size (connect, | ||
611 | GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT, | ||
612 | struct ConnectInfoMessage, | ||
613 | h), | ||
614 | GNUNET_MQ_hd_fixed_size (disconnect, | ||
615 | GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT, | ||
616 | struct DisconnectInfoMessage, | ||
617 | h), | ||
618 | GNUNET_MQ_hd_fixed_size (send_ok, | ||
619 | GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK, | ||
620 | struct SendOkMessage, | ||
621 | h), | ||
622 | GNUNET_MQ_hd_var_size (recv, | ||
623 | GNUNET_MESSAGE_TYPE_TRANSPORT_RECV, | ||
624 | struct InboundMessage, | ||
625 | h), | ||
626 | GNUNET_MQ_handler_end () }; | ||
627 | struct GNUNET_MQ_Envelope *env; | ||
628 | struct StartMessage *s; | ||
629 | uint32_t options; | ||
630 | |||
631 | h->reconnect_task = NULL; | ||
632 | LOG (GNUNET_ERROR_TYPE_DEBUG, "Connecting to transport service.\n"); | ||
633 | GNUNET_assert (NULL == h->mq); | ||
634 | h->mq = | ||
635 | GNUNET_CLIENT_connect (h->cfg, "transport", handlers, &mq_error_handler, h); | ||
636 | h->restarted_at = GNUNET_TIME_absolute_get (); | ||
637 | if (NULL == h->mq) | ||
638 | return; | ||
639 | env = GNUNET_MQ_msg (s, GNUNET_MESSAGE_TYPE_TRANSPORT_START); | ||
640 | options = 0; | ||
641 | if (h->check_self) | ||
642 | options |= 1; | ||
643 | if (NULL != h->handlers) | ||
644 | options |= 2; | ||
645 | s->options = htonl (options); | ||
646 | s->self = h->self; | ||
647 | GNUNET_MQ_send (h->mq, env); | ||
648 | } | ||
649 | |||
650 | |||
651 | /** | ||
652 | * Disconnect from the transport service. | ||
653 | * | ||
654 | * @param h transport service to reconnect | ||
655 | */ | ||
656 | static void | ||
657 | disconnect (struct GNUNET_TRANSPORT_CoreHandle *h) | ||
658 | { | ||
659 | GNUNET_CONTAINER_multipeermap_iterate (h->neighbours, &neighbour_delete, h); | ||
660 | if (NULL != h->mq) | ||
661 | { | ||
662 | GNUNET_MQ_destroy (h->mq); | ||
663 | h->mq = NULL; | ||
664 | } | ||
665 | } | ||
666 | |||
667 | |||
668 | /** | ||
669 | * Function that will schedule the job that will try | ||
670 | * to connect us again to the client. | ||
671 | * | ||
672 | * @param h transport service to reconnect | ||
673 | */ | ||
674 | static void | ||
675 | disconnect_and_schedule_reconnect (struct GNUNET_TRANSPORT_CoreHandle *h) | ||
676 | { | ||
677 | GNUNET_assert (NULL == h->reconnect_task); | ||
678 | disconnect (h); | ||
679 | { | ||
680 | /* Reduce delay based on runtime of the connection, | ||
681 | so that there is a cool-down if a connection is up | ||
682 | for a while. */ | ||
683 | struct GNUNET_TIME_Relative runtime; | ||
684 | unsigned int minutes; | ||
685 | |||
686 | runtime = GNUNET_TIME_absolute_get_duration (h->restarted_at); | ||
687 | minutes = runtime.rel_value_us / GNUNET_TIME_UNIT_MINUTES.rel_value_us; | ||
688 | if (minutes > 31) | ||
689 | h->reconnect_delay = GNUNET_TIME_UNIT_ZERO; | ||
690 | else | ||
691 | h->reconnect_delay.rel_value_us >>= minutes; | ||
692 | } | ||
693 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
694 | "Scheduling task to reconnect to transport service in %s.\n", | ||
695 | GNUNET_STRINGS_relative_time_to_string (h->reconnect_delay, GNUNET_YES)); | ||
696 | h->reconnect_task = | ||
697 | GNUNET_SCHEDULER_add_delayed (h->reconnect_delay, &reconnect, h); | ||
698 | h->reconnect_delay = GNUNET_TIME_STD_BACKOFF (h->reconnect_delay); | ||
699 | } | ||
700 | |||
701 | |||
702 | /** | ||
703 | * Checks if a given peer is connected to us and get the message queue. | ||
704 | * | ||
705 | * @param handle connection to transport service | ||
706 | * @param peer the peer to check | ||
707 | * @return NULL if disconnected, otherwise message queue for @a peer | ||
708 | */ | ||
709 | struct GNUNET_MQ_Handle * | ||
710 | GNUNET_TRANSPORT_core_get_mq (struct GNUNET_TRANSPORT_CoreHandle *handle, | ||
711 | const struct GNUNET_PeerIdentity *peer) | ||
712 | { | ||
713 | struct Neighbour *n; | ||
714 | |||
715 | n = neighbour_find (handle, peer); | ||
716 | if (NULL == n) | ||
717 | return NULL; | ||
718 | return n->mq; | ||
719 | } | ||
720 | |||
721 | |||
722 | /** | ||
723 | * Notification from the CORE service to the TRANSPORT service | ||
724 | * that the CORE service has finished processing a message from | ||
725 | * TRANSPORT (via the @code{handlers} of #GNUNET_TRANSPORT_core_connect()) | ||
726 | * and that it is thus now OK for TRANSPORT to send more messages | ||
727 | * for @a pid. | ||
728 | * | ||
729 | * Used to provide flow control, this is our equivalent to | ||
730 | * #GNUNET_SERVICE_client_continue() of an ordinary service. | ||
731 | * | ||
732 | * Note that due to the use of a window, TRANSPORT may send multiple | ||
733 | * messages destined for the same peer even without an intermediate | ||
734 | * call to this function. However, CORE must still call this function | ||
735 | * once per message received, as otherwise eventually the window will | ||
736 | * be full and TRANSPORT will stop providing messages to CORE for @a | ||
737 | * pid. | ||
738 | * | ||
739 | * @param ch core handle | ||
740 | * @param pid which peer was the message from that was fully processed by CORE | ||
741 | */ | ||
742 | void | ||
743 | GNUNET_TRANSPORT_core_receive_continue (struct GNUNET_TRANSPORT_CoreHandle *ch, | ||
744 | const struct GNUNET_PeerIdentity *pid) | ||
745 | { | ||
746 | struct GNUNET_MQ_Envelope *env; | ||
747 | struct RecvOkMessage *rok; | ||
748 | |||
749 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
750 | "Message for %s finished CORE processing, sending RECV_OK.\n", | ||
751 | GNUNET_i2s (pid)); | ||
752 | if (NULL == ch->mq) | ||
753 | return; | ||
754 | env = GNUNET_MQ_msg (rok, GNUNET_MESSAGE_TYPE_TRANSPORT_RECV_OK); | ||
755 | rok->increase_window_delta = htonl (1); | ||
756 | rok->peer = *pid; | ||
757 | GNUNET_MQ_send (ch->mq, env); | ||
758 | } | ||
759 | |||
760 | |||
761 | /** | ||
762 | * Connect to the transport service. Note that the connection may | ||
763 | * complete (or fail) asynchronously. | ||
764 | * | ||
765 | * @param cfg configuration to use | ||
766 | * @param self our own identity (API should check that it matches | ||
767 | * the identity found by transport), or NULL (no check) | ||
768 | * @param cls closure for the callbacks | ||
769 | * @param rec receive function to call | ||
770 | * @param nc function to call on connect events | ||
771 | * @param nd function to call on disconnect events | ||
772 | * @return NULL on error | ||
773 | */ | ||
774 | struct GNUNET_TRANSPORT_CoreHandle * | ||
775 | GNUNET_TRANSPORT_core_connect (const struct GNUNET_CONFIGURATION_Handle *cfg, | ||
776 | const struct GNUNET_PeerIdentity *self, | ||
777 | const struct GNUNET_MQ_MessageHandler *handlers, | ||
778 | void *cls, | ||
779 | GNUNET_TRANSPORT_NotifyConnect nc, | ||
780 | GNUNET_TRANSPORT_NotifyDisconnect nd) | ||
781 | { | ||
782 | struct GNUNET_TRANSPORT_CoreHandle *h; | ||
783 | unsigned int i; | ||
784 | |||
785 | h = GNUNET_new (struct GNUNET_TRANSPORT_CoreHandle); | ||
786 | if (NULL != self) | ||
787 | { | ||
788 | h->self = *self; | ||
789 | h->check_self = GNUNET_YES; | ||
790 | } | ||
791 | h->cfg = cfg; | ||
792 | h->cls = cls; | ||
793 | h->nc_cb = nc; | ||
794 | h->nd_cb = nd; | ||
795 | h->reconnect_delay = GNUNET_TIME_UNIT_ZERO; | ||
796 | if (NULL != handlers) | ||
797 | { | ||
798 | for (i = 0; NULL != handlers[i].cb; i++) | ||
799 | ; | ||
800 | h->handlers = GNUNET_new_array (i + 1, struct GNUNET_MQ_MessageHandler); | ||
801 | GNUNET_memcpy (h->handlers, | ||
802 | handlers, | ||
803 | i * sizeof(struct GNUNET_MQ_MessageHandler)); | ||
804 | } | ||
805 | LOG (GNUNET_ERROR_TYPE_DEBUG, "Connecting to transport service\n"); | ||
806 | reconnect (h); | ||
807 | if (NULL == h->mq) | ||
808 | { | ||
809 | GNUNET_free (h->handlers); | ||
810 | GNUNET_free (h); | ||
811 | return NULL; | ||
812 | } | ||
813 | h->neighbours = | ||
814 | GNUNET_CONTAINER_multipeermap_create (STARTING_NEIGHBOURS_SIZE, GNUNET_YES); | ||
815 | return h; | ||
816 | } | ||
817 | |||
818 | |||
819 | /** | ||
820 | * Disconnect from the transport service. | ||
821 | * | ||
822 | * @param handle handle to the service as returned from | ||
823 | * #GNUNET_TRANSPORT_core_connect() | ||
824 | */ | ||
825 | void | ||
826 | GNUNET_TRANSPORT_core_disconnect (struct GNUNET_TRANSPORT_CoreHandle *handle) | ||
827 | { | ||
828 | LOG (GNUNET_ERROR_TYPE_DEBUG, "Transport disconnect called!\n"); | ||
829 | /* this disconnects all neighbours... */ | ||
830 | disconnect (handle); | ||
831 | /* and now we stop trying to connect again... */ | ||
832 | if (NULL != handle->reconnect_task) | ||
833 | { | ||
834 | GNUNET_SCHEDULER_cancel (handle->reconnect_task); | ||
835 | handle->reconnect_task = NULL; | ||
836 | } | ||
837 | GNUNET_CONTAINER_multipeermap_destroy (handle->neighbours); | ||
838 | handle->neighbours = NULL; | ||
839 | GNUNET_free (handle->handlers); | ||
840 | handle->handlers = NULL; | ||
841 | GNUNET_free (handle); | ||
842 | } | ||
843 | |||
844 | |||
845 | /* end of transport_api_core.c */ | ||
diff --git a/src/service/transport/transport_api2_monitor.c b/src/service/transport/transport_api2_monitor.c new file mode 100644 index 000000000..67aa1985e --- /dev/null +++ b/src/service/transport/transport_api2_monitor.c | |||
@@ -0,0 +1,292 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2018 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/transport_api2_monitor.c | ||
23 | * @brief implementation of the gnunet_transport_monitor_service.h API | ||
24 | * @author Christian Grothoff | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_util_lib.h" | ||
28 | #include "gnunet_protocols.h" | ||
29 | #include "gnunet_transport_monitor_service.h" | ||
30 | #include "transport.h" | ||
31 | |||
32 | |||
33 | /** | ||
34 | * Opaque handle to the transport service for monitors. | ||
35 | */ | ||
36 | struct GNUNET_TRANSPORT_MonitorContext | ||
37 | { | ||
38 | /** | ||
39 | * Our configuration. | ||
40 | */ | ||
41 | const struct GNUNET_CONFIGURATION_Handle *cfg; | ||
42 | |||
43 | /** | ||
44 | * Queue to talk to the transport service. | ||
45 | */ | ||
46 | struct GNUNET_MQ_Handle *mq; | ||
47 | |||
48 | /** | ||
49 | * Peer we monitor, all zeros for "all" | ||
50 | */ | ||
51 | struct GNUNET_PeerIdentity peer; | ||
52 | |||
53 | /** | ||
54 | * #GNUNET_YES to return the current state and then end. | ||
55 | */ | ||
56 | int one_shot; | ||
57 | |||
58 | /** | ||
59 | * Function to call with monitor data. | ||
60 | */ | ||
61 | GNUNET_TRANSPORT_MonitorCallback cb; | ||
62 | |||
63 | /** | ||
64 | * Closure for @e cb. | ||
65 | */ | ||
66 | void *cb_cls; | ||
67 | }; | ||
68 | |||
69 | |||
70 | /** | ||
71 | * (re)connect our monitor to the transport service | ||
72 | * | ||
73 | * @param mc handle to reconnect | ||
74 | */ | ||
75 | static void | ||
76 | reconnect (struct GNUNET_TRANSPORT_MonitorContext *mc); | ||
77 | |||
78 | |||
79 | /** | ||
80 | * Send message to the transport service about our montoring | ||
81 | * desire. | ||
82 | * | ||
83 | * @param ai address to delete | ||
84 | */ | ||
85 | static void | ||
86 | send_start_monitor (struct GNUNET_TRANSPORT_MonitorContext *mc) | ||
87 | { | ||
88 | struct GNUNET_MQ_Envelope *env; | ||
89 | struct GNUNET_TRANSPORT_MonitorStart *smm; | ||
90 | |||
91 | if (NULL == mc->mq) | ||
92 | return; | ||
93 | env = GNUNET_MQ_msg (smm, GNUNET_MESSAGE_TYPE_TRANSPORT_MONITOR_START); | ||
94 | smm->one_shot = htonl ((uint32_t) mc->one_shot); | ||
95 | smm->peer = mc->peer; | ||
96 | GNUNET_MQ_send (mc->mq, env); | ||
97 | } | ||
98 | |||
99 | |||
100 | /** | ||
101 | * Disconnect from the transport service. | ||
102 | * | ||
103 | * @param mc service to disconnect from | ||
104 | */ | ||
105 | static void | ||
106 | disconnect (struct GNUNET_TRANSPORT_MonitorContext *mc) | ||
107 | { | ||
108 | if (NULL == mc->mq) | ||
109 | return; | ||
110 | GNUNET_MQ_destroy (mc->mq); | ||
111 | mc->mq = NULL; | ||
112 | } | ||
113 | |||
114 | |||
115 | /** | ||
116 | * Function called on MQ errors. Reconnects to the service. | ||
117 | * | ||
118 | * @param cls our `struct GNUNET_TRANSPORT_MonitorContext *` | ||
119 | * @param error what error happened? | ||
120 | */ | ||
121 | static void | ||
122 | error_handler (void *cls, enum GNUNET_MQ_Error error) | ||
123 | { | ||
124 | struct GNUNET_TRANSPORT_MonitorContext *mc = cls; | ||
125 | |||
126 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
127 | "MQ failure %d, reconnecting to transport service.\n", | ||
128 | error); | ||
129 | disconnect (mc); | ||
130 | /* TODO: maybe do this with exponential backoff/delay */ | ||
131 | reconnect (mc); | ||
132 | } | ||
133 | |||
134 | |||
135 | /** | ||
136 | * Transport service sends us information about what is going on. | ||
137 | * Check if @a md is well-formed. | ||
138 | * | ||
139 | * @param cls our `struct GNUNET_TRANSPORT_MonitorContext *` | ||
140 | * @param md the monitor data we got | ||
141 | * @return #GNUNET_OK if @a smt is well-formed | ||
142 | */ | ||
143 | static int | ||
144 | check_monitor_data (void *cls, const struct GNUNET_TRANSPORT_MonitorData *md) | ||
145 | { | ||
146 | (void) cls; | ||
147 | GNUNET_MQ_check_zero_termination (md); | ||
148 | return GNUNET_OK; | ||
149 | } | ||
150 | |||
151 | |||
152 | /** | ||
153 | * Transport service sends us information about what is going on. | ||
154 | * | ||
155 | * @param cls our `struct GNUNET_TRANSPORT_MonitorContext *` | ||
156 | * @param md monitor data | ||
157 | */ | ||
158 | static void | ||
159 | handle_monitor_data (void *cls, const struct GNUNET_TRANSPORT_MonitorData *md) | ||
160 | { | ||
161 | struct GNUNET_TRANSPORT_MonitorContext *mc = cls; | ||
162 | struct GNUNET_TRANSPORT_MonitorInformation mi; | ||
163 | |||
164 | mi.address = (const char *) &md[1]; | ||
165 | mi.nt = (enum GNUNET_NetworkType) ntohl (md->nt); | ||
166 | mi.cs = (enum GNUNET_TRANSPORT_ConnectionStatus) ntohl (md->cs); | ||
167 | mi.num_msg_pending = ntohl (md->num_msg_pending); | ||
168 | mi.num_bytes_pending = ntohl (md->num_bytes_pending); | ||
169 | mi.last_validation = GNUNET_TIME_absolute_ntoh (md->last_validation); | ||
170 | mi.valid_until = GNUNET_TIME_absolute_ntoh (md->valid_until); | ||
171 | mi.next_validation = GNUNET_TIME_absolute_ntoh (md->next_validation); | ||
172 | mi.rtt = GNUNET_TIME_relative_ntoh (md->rtt); | ||
173 | mc->cb (mc->cb_cls, &md->peer, &mi); | ||
174 | } | ||
175 | |||
176 | |||
177 | /** | ||
178 | * One shot was requested, and transport service is done. | ||
179 | * | ||
180 | * @param cls our `struct GNUNET_TRANSPORT_MonitorContext *` | ||
181 | * @param me end message | ||
182 | */ | ||
183 | static void | ||
184 | handle_monitor_end (void *cls, const struct GNUNET_MessageHeader *me) | ||
185 | { | ||
186 | struct GNUNET_TRANSPORT_MonitorContext *mc = cls; | ||
187 | |||
188 | if (GNUNET_YES != mc->one_shot) | ||
189 | { | ||
190 | GNUNET_break (0); | ||
191 | disconnect (mc); | ||
192 | reconnect (mc); | ||
193 | return; | ||
194 | } | ||
195 | mc->cb (mc->cb_cls, NULL, NULL); | ||
196 | GNUNET_TRANSPORT_monitor_cancel (mc); | ||
197 | } | ||
198 | |||
199 | |||
200 | /** | ||
201 | * (re)connect our monitor to the transport service | ||
202 | * | ||
203 | * @param mc handle to reconnect | ||
204 | */ | ||
205 | static void | ||
206 | reconnect (struct GNUNET_TRANSPORT_MonitorContext *mc) | ||
207 | { | ||
208 | struct GNUNET_MQ_MessageHandler handlers[] = | ||
209 | { GNUNET_MQ_hd_var_size (monitor_data, | ||
210 | GNUNET_MESSAGE_TYPE_TRANSPORT_MONITOR_DATA, | ||
211 | struct GNUNET_TRANSPORT_MonitorData, | ||
212 | mc), | ||
213 | GNUNET_MQ_hd_fixed_size (monitor_end, | ||
214 | GNUNET_MESSAGE_TYPE_TRANSPORT_MONITOR_END, | ||
215 | struct GNUNET_MessageHeader, | ||
216 | mc), | ||
217 | GNUNET_MQ_handler_end () }; | ||
218 | |||
219 | mc->mq = | ||
220 | GNUNET_CLIENT_connect (mc->cfg, "transport", handlers, &error_handler, mc); | ||
221 | if (NULL == mc->mq) | ||
222 | return; | ||
223 | send_start_monitor (mc); | ||
224 | } | ||
225 | |||
226 | |||
227 | /** | ||
228 | * Return information about a specific peer or all peers currently known to | ||
229 | * transport service once or in monitoring mode. To obtain information about | ||
230 | * a specific peer, a peer identity can be passed. To obtain information about | ||
231 | * all peers currently known to transport service, NULL can be passed as peer | ||
232 | * identity. | ||
233 | * | ||
234 | * For each peer, the callback is called with information about the address used | ||
235 | * to communicate with this peer, the state this peer is currently in and the | ||
236 | * the current timeout for this state. | ||
237 | * | ||
238 | * Upon completion, the #GNUNET_TRANSPORT_PeerIterateCallback is called one | ||
239 | * more time with `NULL`. After this, the operation must no longer be | ||
240 | * explicitly canceled. | ||
241 | * | ||
242 | * The #GNUNET_TRANSPORT_monitor_peers_cancel call MUST not be called in the | ||
243 | * the peer_callback! | ||
244 | * | ||
245 | * @param cfg configuration to use | ||
246 | * @param peer a specific peer identity to obtain information for, | ||
247 | * NULL for all peers | ||
248 | * @param one_shot #GNUNET_YES to return the current state and then end (with NULL+NULL), | ||
249 | * #GNUNET_NO to monitor peers continuously | ||
250 | * @param cb function to call with the results | ||
251 | * @param cb_cls closure for @a mc | ||
252 | */ | ||
253 | struct GNUNET_TRANSPORT_MonitorContext * | ||
254 | GNUNET_TRANSPORT_monitor (const struct GNUNET_CONFIGURATION_Handle *cfg, | ||
255 | const struct GNUNET_PeerIdentity *peer, | ||
256 | int one_shot, | ||
257 | GNUNET_TRANSPORT_MonitorCallback cb, | ||
258 | void *cb_cls) | ||
259 | { | ||
260 | struct GNUNET_TRANSPORT_MonitorContext *mc; | ||
261 | |||
262 | mc = GNUNET_new (struct GNUNET_TRANSPORT_MonitorContext); | ||
263 | mc->cfg = cfg; | ||
264 | if (NULL != peer) | ||
265 | mc->peer = *peer; | ||
266 | mc->one_shot = one_shot; | ||
267 | mc->cb = cb; | ||
268 | mc->cb_cls = cb_cls; | ||
269 | reconnect (mc); | ||
270 | if (NULL == mc->mq) | ||
271 | { | ||
272 | GNUNET_free (mc); | ||
273 | return NULL; | ||
274 | } | ||
275 | return mc; | ||
276 | } | ||
277 | |||
278 | |||
279 | /** | ||
280 | * Cancel request to monitor peers | ||
281 | * | ||
282 | * @param pmc handle for the request to cancel | ||
283 | */ | ||
284 | void | ||
285 | GNUNET_TRANSPORT_monitor_cancel (struct GNUNET_TRANSPORT_MonitorContext *mc) | ||
286 | { | ||
287 | disconnect (mc); | ||
288 | GNUNET_free (mc); | ||
289 | } | ||
290 | |||
291 | |||
292 | /* end of transport_api2_monitor.c */ | ||
diff --git a/src/service/transport/transport_api_cmd_backchannel_check.c b/src/service/transport/transport_api_cmd_backchannel_check.c new file mode 100644 index 000000000..8788139b7 --- /dev/null +++ b/src/service/transport/transport_api_cmd_backchannel_check.c | |||
@@ -0,0 +1,554 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file testing_api_cmd_backchannel_check.c | ||
23 | * @brief cmd to start a peer. | ||
24 | * @author t3sserakt | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_common.h" | ||
28 | #include "gnunet_util_lib.h" | ||
29 | #include "gnunet_testing_ng_lib.h" | ||
30 | #include "gnunet_testing_netjail_lib.h" | ||
31 | #include "gnunet_transport_application_service.h" | ||
32 | #include "transport-testing-cmds.h" | ||
33 | |||
34 | /** | ||
35 | * Generic logging shortcut | ||
36 | */ | ||
37 | #define LOG(kind, ...) GNUNET_log_from (kind, "udp-backchannel",__VA_ARGS__) | ||
38 | |||
39 | #define UDP "udp" | ||
40 | |||
41 | /** | ||
42 | * Maximum length allowed for line input. | ||
43 | */ | ||
44 | #define MAX_LINE_LENGTH 1024 | ||
45 | |||
46 | /** | ||
47 | * Struct to store information needed in callbacks. | ||
48 | * | ||
49 | */ | ||
50 | struct CheckState | ||
51 | { | ||
52 | /** | ||
53 | * Context for our asynchronous completion. | ||
54 | */ | ||
55 | struct GNUNET_TESTING_AsyncContext ac; | ||
56 | |||
57 | /** | ||
58 | * The number of the node in a network namespace. | ||
59 | */ | ||
60 | unsigned int node_n; | ||
61 | |||
62 | /** | ||
63 | * The number of the network namespace. | ||
64 | */ | ||
65 | unsigned int namespace_n; | ||
66 | |||
67 | /** | ||
68 | * The testing system of this node. | ||
69 | */ | ||
70 | const struct GNUNET_TESTING_System *tl_system; | ||
71 | |||
72 | // Label of the cmd which started the test system. | ||
73 | const char *create_label; | ||
74 | |||
75 | /** | ||
76 | * Number globally identifying the node. | ||
77 | * | ||
78 | */ | ||
79 | uint32_t num; | ||
80 | |||
81 | /** | ||
82 | * Label of the cmd to start a peer. | ||
83 | * | ||
84 | */ | ||
85 | const char *start_peer_label; | ||
86 | |||
87 | /** | ||
88 | * The topology of the test setup. | ||
89 | */ | ||
90 | struct GNUNET_TESTING_NetjailTopology *topology; | ||
91 | |||
92 | /** | ||
93 | * Connections to other peers. | ||
94 | */ | ||
95 | struct GNUNET_TESTING_NodeConnection *node_connections_head; | ||
96 | |||
97 | /** | ||
98 | * Number of connections. | ||
99 | */ | ||
100 | unsigned int con_num; | ||
101 | |||
102 | /** | ||
103 | * Number of received backchannel messages. | ||
104 | */ | ||
105 | unsigned int received_backchannel_msgs; | ||
106 | |||
107 | /** | ||
108 | * Array with search strings. | ||
109 | */ | ||
110 | char **search_string; | ||
111 | |||
112 | /** | ||
113 | * File handle for log file. | ||
114 | */ | ||
115 | struct GNUNET_DISK_FileHandle *fh; | ||
116 | |||
117 | /** | ||
118 | * Task which handles the reading | ||
119 | */ | ||
120 | struct GNUNET_SCHEDULER_Task *task; | ||
121 | |||
122 | /** | ||
123 | * Stream to read log file lines. | ||
124 | */ | ||
125 | FILE *stream; | ||
126 | }; | ||
127 | |||
128 | /** | ||
129 | * | ||
130 | * @param cls The cmd state CheckState. | ||
131 | */ | ||
132 | static void | ||
133 | read_from_log (void *cls) | ||
134 | { | ||
135 | struct CheckState *cs = cls; | ||
136 | char line[MAX_LINE_LENGTH + 1]; | ||
137 | char *search_string; | ||
138 | |||
139 | |||
140 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
141 | "read_from_log\n"); | ||
142 | |||
143 | cs->fh = GNUNET_DISK_file_open ("test.out", | ||
144 | GNUNET_DISK_OPEN_READ, | ||
145 | GNUNET_DISK_PERM_USER_READ); | ||
146 | |||
147 | cs->task = NULL; | ||
148 | |||
149 | /* read message from line and handle it */ | ||
150 | cs->stream = fdopen (cs->fh->fd, "r"); | ||
151 | memset (line, 0, MAX_LINE_LENGTH + 1); | ||
152 | |||
153 | // fgets (line, MAX_LINE_LENGTH, cs->stream); | ||
154 | // while (NULL != line && 0 != strcmp (line, ""))// '\0' != line[0]) | ||
155 | while (NULL != fgets (line, MAX_LINE_LENGTH, cs->stream)) | ||
156 | { | ||
157 | /*LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
158 | "cs->received_backchannel_msgs: %u\n", | ||
159 | cs->received_backchannel_msgs);*/ | ||
160 | /*if (NULL == strstr (line, "line")) | ||
161 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
162 | "line: %s", | ||
163 | line);*/ | ||
164 | |||
165 | |||
166 | for (int i = 0; i < cs->con_num; i++) | ||
167 | { | ||
168 | search_string = cs->search_string[i]; | ||
169 | /*LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
170 | "search %u %u: %s %p\n", | ||
171 | i, | ||
172 | cs->con_num, | ||
173 | cs->search_string[i], | ||
174 | cs->search_string); | ||
175 | fprintf (stderr, | ||
176 | line);*/ | ||
177 | if (NULL != strstr (line, | ||
178 | search_string)) | ||
179 | // "Delivering backchannel message from 4TTC to F7B5 of type 1460 to udp")) | ||
180 | // cs->search_string[i])) | ||
181 | { | ||
182 | cs->received_backchannel_msgs++; | ||
183 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
184 | "received_backchannel_msgs %u con_num %u\n", | ||
185 | cs->received_backchannel_msgs, | ||
186 | cs->con_num); | ||
187 | if (cs->received_backchannel_msgs == cs->con_num) | ||
188 | { | ||
189 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
190 | "search finished %lu %lu %u\n", | ||
191 | strlen (cs->search_string[i]), | ||
192 | strlen ( | ||
193 | "Delivering backchannel message from 4TTC to F7B5 of type 1460 to udp"), | ||
194 | strcmp ( | ||
195 | "Delivering backchannel message from 4TTC to F7B5 of type 1460 to udp", | ||
196 | cs->search_string[i])); | ||
197 | GNUNET_TESTING_async_finish (&cs->ac); | ||
198 | fclose (cs->stream); | ||
199 | return; | ||
200 | } | ||
201 | } | ||
202 | } | ||
203 | } | ||
204 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
205 | "read_from_log end\n"); | ||
206 | fclose (cs->stream); | ||
207 | GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_MINUTES, | ||
208 | &read_from_log, | ||
209 | cs); | ||
210 | /*if (NULL == fgets (line, MAX_LINE_LENGTH, cs->stream)) | ||
211 | { | ||
212 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
213 | "read null\n"); | ||
214 | GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS, | ||
215 | &read_from_log, | ||
216 | cs); | ||
217 | return; | ||
218 | }*/ | ||
219 | /*else { | ||
220 | cs->task = | ||
221 | GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_UNIT_FOREVER_REL, | ||
222 | cs->fh, | ||
223 | &read_from_log, | ||
224 | cs); | ||
225 | |||
226 | |||
227 | }*/ | ||
228 | } | ||
229 | |||
230 | |||
231 | static enum GNUNET_GenericReturnValue | ||
232 | will_the_other_node_connect_via_udp ( | ||
233 | struct CheckState *cs, | ||
234 | const struct GNUNET_TESTING_NetjailNode *node) | ||
235 | // struct GNUNET_TESTING_NodeConnection *connection) | ||
236 | { | ||
237 | // struct GNUNET_TESTING_NetjailTopology *topology = cs->topology; | ||
238 | // unsigned int node_n = connection->node_n; | ||
239 | // unsigned int namespace_n = connection->namespace_n; | ||
240 | // struct GNUNET_HashCode hc; | ||
241 | // struct GNUNET_ShortHashCode *key = GNUNET_new (struct GNUNET_ShortHashCode); | ||
242 | // struct GNUNET_HashCode hc_namespace; | ||
243 | /*struct GNUNET_ShortHashCode *key_namespace = GNUNET_new (struct | ||
244 | GNUNET_ShortHashCode);*/ | ||
245 | // struct GNUNET_TESTING_NetjailNode *node; | ||
246 | struct GNUNET_TESTING_NodeConnection *pos_connection; | ||
247 | struct GNUNET_TESTING_AddressPrefix *pos_prefix; | ||
248 | // struct GNUNET_TESTING_NetjailNamespace *namespace; | ||
249 | // struct GNUNET_CONTAINER_MultiShortmap *map; | ||
250 | |||
251 | /* if (0 == connection->namespace_n) */ | ||
252 | /* { */ | ||
253 | /* map = topology->map_globals; */ | ||
254 | /* } */ | ||
255 | /* else */ | ||
256 | /* { */ | ||
257 | /* GNUNET_CRYPTO_hash (&namespace_n, sizeof(namespace_n), &hc_namespace); */ | ||
258 | /* memcpy (key_namespace, */ | ||
259 | /* &hc_namespace, */ | ||
260 | /* sizeof (*key_namespace)); */ | ||
261 | /* if (GNUNET_YES == GNUNET_CONTAINER_multishortmap_contains ( */ | ||
262 | /* topology->map_namespaces, */ | ||
263 | /* key_namespace)) */ | ||
264 | /* { */ | ||
265 | /* namespace = GNUNET_CONTAINER_multishortmap_get (topology->map_namespaces, */ | ||
266 | /* key_namespace); */ | ||
267 | /* map = namespace->nodes; */ | ||
268 | /* } */ | ||
269 | /* else */ | ||
270 | /* GNUNET_assert (0); */ | ||
271 | /* } */ | ||
272 | |||
273 | /* GNUNET_CRYPTO_hash (&node_n, sizeof(node_n), &hc); */ | ||
274 | /* memcpy (key, */ | ||
275 | /* &hc, */ | ||
276 | /* sizeof (*key)); */ | ||
277 | /* if (GNUNET_YES == GNUNET_CONTAINER_multishortmap_contains ( */ | ||
278 | /* map, */ | ||
279 | /* key)) */ | ||
280 | /* { */ | ||
281 | /* node = GNUNET_CONTAINER_multishortmap_get (cs->topology->map_globals, */ | ||
282 | /* key); */ | ||
283 | /* for (pos_connection = node->node_connections_head; NULL != pos_connection; */ | ||
284 | /* pos_connection = pos_connection->next) */ | ||
285 | /* { */ | ||
286 | /* if ((node->namespace_n == pos_connection->namespace_n) && */ | ||
287 | /* (node->node_n == pos_connection->node_n) ) */ | ||
288 | /* { */ | ||
289 | /* for (pos_prefix = pos_connection->address_prefixes_head; NULL != */ | ||
290 | /* pos_prefix; */ | ||
291 | /* pos_prefix = */ | ||
292 | /* pos_prefix->next) */ | ||
293 | /* { */ | ||
294 | /* if (0 == strcmp (UDP, pos_prefix->address_prefix)) */ | ||
295 | /* { */ | ||
296 | /* return GNUNET_YES; */ | ||
297 | /* } */ | ||
298 | /* } */ | ||
299 | /* } */ | ||
300 | /* } */ | ||
301 | /* } */ | ||
302 | |||
303 | for (pos_connection = node->node_connections_head; NULL != pos_connection; | ||
304 | pos_connection = pos_connection->next) | ||
305 | { | ||
306 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
307 | "connect via udp %u %u %u %u\n", | ||
308 | node->namespace_n, | ||
309 | cs->namespace_n, | ||
310 | node->node_n, | ||
311 | cs->node_n); | ||
312 | if ((pos_connection->namespace_n == cs->namespace_n) && | ||
313 | (pos_connection->node_n == cs->node_n) ) | ||
314 | { | ||
315 | for (pos_prefix = pos_connection->address_prefixes_head; NULL != | ||
316 | pos_prefix; | ||
317 | pos_prefix = | ||
318 | pos_prefix->next) | ||
319 | { | ||
320 | if (0 == strcmp (UDP, pos_prefix->address_prefix)) | ||
321 | { | ||
322 | return GNUNET_YES; | ||
323 | } | ||
324 | } | ||
325 | } | ||
326 | } | ||
327 | |||
328 | return GNUNET_NO; | ||
329 | } | ||
330 | |||
331 | |||
332 | static void | ||
333 | add_search_string (struct CheckState *cs, const struct | ||
334 | GNUNET_TESTING_NetjailNode *node) | ||
335 | { | ||
336 | unsigned int num; | ||
337 | struct GNUNET_PeerIdentity *peer; | ||
338 | struct GNUNET_PeerIdentity *us; | ||
339 | char *buf; | ||
340 | char *part_one = "Delivering backchannel message from "; | ||
341 | char *part_two = " to "; | ||
342 | char *part_three = " of type 1460 to udp"; | ||
343 | char *peer_id; | ||
344 | char *us_id; | ||
345 | |||
346 | if (0 == node->namespace_n) | ||
347 | num = node->node_n; | ||
348 | else | ||
349 | num = (node->namespace_n - 1) * cs->topology->nodes_m + node->node_n | ||
350 | + cs->topology->nodes_x; | ||
351 | |||
352 | // num = GNUNET_TESTING_calculate_num (pos_connection, cs->topology); | ||
353 | peer = GNUNET_TESTING_get_peer (num, cs->tl_system); | ||
354 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
355 | "peer: %s num %u\n", | ||
356 | GNUNET_i2s (peer), | ||
357 | num); | ||
358 | us = GNUNET_TESTING_get_peer (cs->num, cs->tl_system); | ||
359 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
360 | "us: %s cs->num %d\n", | ||
361 | GNUNET_i2s (us), | ||
362 | cs->num); | ||
363 | |||
364 | GNUNET_asprintf (&peer_id, | ||
365 | "%s", | ||
366 | GNUNET_i2s (peer)); | ||
367 | GNUNET_asprintf (&us_id, | ||
368 | "%s", | ||
369 | GNUNET_i2s (us)); | ||
370 | |||
371 | if (0 < GNUNET_asprintf (&buf, | ||
372 | "%s%s%s%s%s", | ||
373 | part_one, | ||
374 | us_id, | ||
375 | part_two, | ||
376 | peer_id, | ||
377 | part_three)) | ||
378 | { | ||
379 | GNUNET_array_append (cs->search_string, | ||
380 | cs->con_num, | ||
381 | buf); | ||
382 | /*LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
383 | "con_num: %u search: %s %p\n", | ||
384 | cs->con_num, | ||
385 | cs->search_string[cs->con_num - 1], | ||
386 | cs->search_string);*/ | ||
387 | } | ||
388 | else | ||
389 | GNUNET_assert (0); | ||
390 | GNUNET_free (peer); | ||
391 | GNUNET_free (us); | ||
392 | } | ||
393 | |||
394 | |||
395 | /** | ||
396 | * The run method of this cmd will connect to peers. | ||
397 | * | ||
398 | */ | ||
399 | static void | ||
400 | backchannel_check_run (void *cls, | ||
401 | struct GNUNET_TESTING_Interpreter *is) | ||
402 | { | ||
403 | struct CheckState *cs = cls; | ||
404 | const struct GNUNET_TESTING_Command *system_cmd; | ||
405 | const struct GNUNET_TESTING_System *tl_system; | ||
406 | const struct GNUNET_TESTING_Command *peer1_cmd; | ||
407 | const struct GNUNET_TRANSPORT_ApplicationHandle *ah; | ||
408 | struct GNUNET_CONTAINER_MultiShortmapIterator *node_it; | ||
409 | struct GNUNET_CONTAINER_MultiShortmapIterator *namespace_it; | ||
410 | struct GNUNET_ShortHashCode node_key; | ||
411 | struct GNUNET_ShortHashCode namespace_key; | ||
412 | const struct GNUNET_TESTING_NetjailNode *node; | ||
413 | const struct GNUNET_TESTING_NetjailNamespace *namespace; | ||
414 | |||
415 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
416 | "check run 1\n"); | ||
417 | |||
418 | peer1_cmd = GNUNET_TESTING_interpreter_lookup_command (is, | ||
419 | cs->start_peer_label); | ||
420 | GNUNET_TRANSPORT_TESTING_get_trait_application_handle (peer1_cmd, | ||
421 | &ah); | ||
422 | |||
423 | system_cmd = GNUNET_TESTING_interpreter_lookup_command (is, | ||
424 | cs->create_label); | ||
425 | GNUNET_TESTING_get_trait_test_system (system_cmd, | ||
426 | &tl_system); | ||
427 | |||
428 | cs->tl_system = tl_system; | ||
429 | |||
430 | cs->node_connections_head = GNUNET_TESTING_get_connections (cs->num, | ||
431 | cs->topology); | ||
432 | |||
433 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
434 | "check run 2\n"); | ||
435 | |||
436 | |||
437 | node_it = GNUNET_CONTAINER_multishortmap_iterator_create ( | ||
438 | cs->topology->map_globals); | ||
439 | |||
440 | while (GNUNET_YES == GNUNET_CONTAINER_multishortmap_iterator_next (node_it, | ||
441 | &node_key, | ||
442 | (const | ||
443 | void**) & | ||
444 | node)) | ||
445 | { | ||
446 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
447 | "namespace_n %u node_n %u\n", | ||
448 | node->namespace_n, | ||
449 | node->node_n); | ||
450 | if (GNUNET_YES == will_the_other_node_connect_via_udp (cs, node)) | ||
451 | { | ||
452 | add_search_string (cs, node); | ||
453 | } | ||
454 | } | ||
455 | GNUNET_free (node_it); | ||
456 | namespace_it = GNUNET_CONTAINER_multishortmap_iterator_create ( | ||
457 | cs->topology->map_namespaces); | ||
458 | while (GNUNET_YES == GNUNET_CONTAINER_multishortmap_iterator_next ( | ||
459 | namespace_it, | ||
460 | &namespace_key, | ||
461 | (const | ||
462 | void**) &namespace)) | ||
463 | { | ||
464 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
465 | "namespace_n %u\n", | ||
466 | node->namespace_n); | ||
467 | node_it = GNUNET_CONTAINER_multishortmap_iterator_create ( | ||
468 | namespace->nodes); | ||
469 | while (GNUNET_YES == GNUNET_CONTAINER_multishortmap_iterator_next (node_it, | ||
470 | &node_key | ||
471 | , | ||
472 | (const | ||
473 | void**) | ||
474 | &node)) | ||
475 | { | ||
476 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
477 | "namespace_n %u node_n %u\n", | ||
478 | node->namespace_n, | ||
479 | node->node_n); | ||
480 | if (GNUNET_YES == will_the_other_node_connect_via_udp (cs, node)) | ||
481 | { | ||
482 | add_search_string (cs, node); | ||
483 | } | ||
484 | } | ||
485 | GNUNET_free (node_it); | ||
486 | } | ||
487 | |||
488 | if (0 != cs->con_num) | ||
489 | { | ||
490 | cs->task = | ||
491 | GNUNET_SCHEDULER_add_now (&read_from_log, | ||
492 | cs); | ||
493 | } | ||
494 | else | ||
495 | GNUNET_TESTING_async_finish (&cs->ac); | ||
496 | |||
497 | GNUNET_free (namespace_it); | ||
498 | } | ||
499 | |||
500 | |||
501 | /** | ||
502 | * Trait function of this cmd does nothing. | ||
503 | * | ||
504 | */ | ||
505 | static int | ||
506 | backchannel_check_traits (void *cls, | ||
507 | const void **ret, | ||
508 | const char *trait, | ||
509 | unsigned int index) | ||
510 | { | ||
511 | return GNUNET_OK; | ||
512 | } | ||
513 | |||
514 | |||
515 | /** | ||
516 | * The cleanup function of this cmd frees resources the cmd allocated. | ||
517 | * | ||
518 | */ | ||
519 | static void | ||
520 | backchannel_check_cleanup (void *cls) | ||
521 | { | ||
522 | struct ConnectPeersState *cs = cls; | ||
523 | |||
524 | GNUNET_free (cs); | ||
525 | } | ||
526 | |||
527 | |||
528 | struct GNUNET_TESTING_Command | ||
529 | GNUNET_TRANSPORT_cmd_backchannel_check (const char *label, | ||
530 | const char *start_peer_label, | ||
531 | const char *create_label, | ||
532 | uint32_t num, | ||
533 | unsigned int node_n, | ||
534 | unsigned int namespace_n, | ||
535 | struct GNUNET_TESTING_NetjailTopology * | ||
536 | topology) | ||
537 | { | ||
538 | struct CheckState *cs; | ||
539 | |||
540 | cs = GNUNET_new (struct CheckState); | ||
541 | cs->start_peer_label = start_peer_label; | ||
542 | cs->num = num; | ||
543 | cs->create_label = create_label; | ||
544 | cs->topology = topology; | ||
545 | cs->node_n = node_n; | ||
546 | cs->namespace_n = namespace_n; | ||
547 | |||
548 | return GNUNET_TESTING_command_new_ac (cs, | ||
549 | label, | ||
550 | &backchannel_check_run, | ||
551 | &backchannel_check_cleanup, | ||
552 | &backchannel_check_traits, | ||
553 | &cs->ac); | ||
554 | } | ||
diff --git a/src/service/transport/transport_api_cmd_connecting_peers.c b/src/service/transport/transport_api_cmd_connecting_peers.c new file mode 100644 index 000000000..6b851262d --- /dev/null +++ b/src/service/transport/transport_api_cmd_connecting_peers.c | |||
@@ -0,0 +1,314 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file testing_api_cmd_start_peer.c | ||
23 | * @brief cmd to start a peer. | ||
24 | * @author t3sserakt | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_util_lib.h" | ||
28 | #include "gnunet_testing_ng_lib.h" | ||
29 | #include "gnunet_transport_testing_ng_lib.h" | ||
30 | #include "transport-testing-cmds.h" | ||
31 | #include "gnunet_transport_application_service.h" | ||
32 | |||
33 | /** | ||
34 | * Generic logging shortcut | ||
35 | */ | ||
36 | #define LOG(kind, ...) GNUNET_log (kind, __VA_ARGS__) | ||
37 | |||
38 | /** | ||
39 | * The run method of this cmd will connect to peers. | ||
40 | * | ||
41 | */ | ||
42 | static void | ||
43 | connect_peers_run (void *cls, | ||
44 | struct GNUNET_TESTING_Interpreter *is) | ||
45 | { | ||
46 | struct ConnectPeersState *cps = cls; | ||
47 | const struct GNUNET_TESTING_Command *system_cmd; | ||
48 | const struct GNUNET_TESTING_System *tl_system; | ||
49 | |||
50 | |||
51 | const struct GNUNET_TESTING_Command *peer1_cmd; | ||
52 | const struct GNUNET_TRANSPORT_ApplicationHandle *ah; | ||
53 | struct GNUNET_PeerIdentity *peer; | ||
54 | char *addr; | ||
55 | char *addr_and_port; | ||
56 | enum GNUNET_NetworkType nt = 0; | ||
57 | uint32_t num; | ||
58 | struct GNUNET_TESTING_NodeConnection *pos_connection; | ||
59 | struct GNUNET_TESTING_AddressPrefix *pos_prefix; | ||
60 | unsigned int con_num = 0; | ||
61 | const enum GNUNET_GenericReturnValue *broadcast; | ||
62 | |||
63 | cps->is = is; | ||
64 | peer1_cmd = GNUNET_TESTING_interpreter_lookup_command (is, | ||
65 | cps->start_peer_label); | ||
66 | if (GNUNET_YES == cps->wait_for_connect) | ||
67 | { | ||
68 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
69 | "Wait for connect.\n"); | ||
70 | GNUNET_TRANSPORT_TESTING_get_trait_application_handle (peer1_cmd, | ||
71 | &ah); | ||
72 | } | ||
73 | else | ||
74 | { | ||
75 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
76 | "Not waiting for connect.\n"); | ||
77 | GNUNET_TRANSPORT_TESTING_get_trait_application_handle (peer1_cmd, | ||
78 | &ah); | ||
79 | } | ||
80 | |||
81 | GNUNET_TRANSPORT_TESTING_get_trait_broadcast (peer1_cmd, | ||
82 | &broadcast); | ||
83 | |||
84 | system_cmd = GNUNET_TESTING_interpreter_lookup_command (is, | ||
85 | cps->create_label); | ||
86 | GNUNET_TESTING_get_trait_test_system (system_cmd, | ||
87 | &tl_system); | ||
88 | |||
89 | cps->tl_system = tl_system; | ||
90 | |||
91 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
92 | "cps->num: %u \n", | ||
93 | cps->num); | ||
94 | |||
95 | cps->node_connections_head = GNUNET_TESTING_get_connections (cps->num, | ||
96 | cps->topology); | ||
97 | |||
98 | for (pos_connection = cps->node_connections_head; NULL != pos_connection; | ||
99 | pos_connection = pos_connection->next) | ||
100 | { | ||
101 | con_num++; | ||
102 | num = GNUNET_TESTING_calculate_num (pos_connection, cps->topology); | ||
103 | for (pos_prefix = pos_connection->address_prefixes_head; NULL != pos_prefix; | ||
104 | pos_prefix = | ||
105 | pos_prefix->next) | ||
106 | { | ||
107 | addr = GNUNET_TESTING_get_address (pos_connection, | ||
108 | pos_prefix->address_prefix); | ||
109 | if (NULL != addr) | ||
110 | { | ||
111 | char *natted_p = strstr (pos_prefix->address_prefix, "_"); | ||
112 | |||
113 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
114 | "0 validating peer number %s %s %s\n", | ||
115 | natted_p, | ||
116 | pos_prefix->address_prefix, | ||
117 | addr); | ||
118 | if (0 == GNUNET_memcmp (pos_prefix->address_prefix, "udp")) | ||
119 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
120 | "validating memcmp\n"); | ||
121 | if (GNUNET_YES == *broadcast) | ||
122 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
123 | "validating broadcast\n"); | ||
124 | if ((0 == GNUNET_memcmp (pos_prefix->address_prefix, "udp")) && | ||
125 | (GNUNET_YES == *broadcast) ) | ||
126 | GNUNET_asprintf (&addr_and_port, | ||
127 | "%s:2086", | ||
128 | addr); | ||
129 | else if (NULL == natted_p) | ||
130 | GNUNET_asprintf (&addr_and_port, | ||
131 | "%s:60002", | ||
132 | addr); | ||
133 | else if (NULL != natted_p) | ||
134 | { | ||
135 | char *prefix; | ||
136 | char *rest; | ||
137 | char *address; | ||
138 | |||
139 | prefix = strtok (addr, "_"); | ||
140 | rest = strtok (NULL, "_"); | ||
141 | strtok (rest, "-"); | ||
142 | address = strtok (NULL, "-"); | ||
143 | |||
144 | GNUNET_asprintf (&addr_and_port, | ||
145 | "%s-%s:0", | ||
146 | prefix, | ||
147 | address); | ||
148 | |||
149 | } | ||
150 | peer = GNUNET_TESTING_get_peer (num, tl_system); | ||
151 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
152 | "validating peer number %u with identity %s and address %s %u %s and handle %p\n", | ||
153 | num, | ||
154 | GNUNET_i2s (peer), | ||
155 | addr_and_port, | ||
156 | *broadcast, | ||
157 | pos_prefix->address_prefix, | ||
158 | ah); | ||
159 | GNUNET_TRANSPORT_application_validate ((struct | ||
160 | GNUNET_TRANSPORT_ApplicationHandle | ||
161 | *) ah, | ||
162 | peer, | ||
163 | nt, | ||
164 | addr_and_port); | ||
165 | GNUNET_free (peer); | ||
166 | GNUNET_free (addr); | ||
167 | GNUNET_free (addr_and_port); | ||
168 | } | ||
169 | } | ||
170 | } | ||
171 | cps->con_num = con_num; | ||
172 | } | ||
173 | |||
174 | |||
175 | /** | ||
176 | * Callback from start peer cmd for signaling a peer got connected. | ||
177 | * | ||
178 | */ | ||
179 | static void * | ||
180 | notify_connect (struct GNUNET_TESTING_Interpreter *is, | ||
181 | const struct GNUNET_PeerIdentity *peer) | ||
182 | { | ||
183 | const struct GNUNET_TESTING_Command *cmd; | ||
184 | struct ConnectPeersState *cps; | ||
185 | struct GNUNET_PeerIdentity *peer_connection; | ||
186 | unsigned int num; | ||
187 | unsigned int con_num; | ||
188 | void *ret = NULL; | ||
189 | |||
190 | cmd = GNUNET_TESTING_interpreter_lookup_command_all (is, | ||
191 | "connect-peers"); | ||
192 | cps = cmd->cls; // WTF? Never go directly into cls of another command! FIXME! | ||
193 | con_num = cps->con_num_notified; | ||
194 | for (struct GNUNET_TESTING_NodeConnection *pos_connection = | ||
195 | cps->node_connections_head; | ||
196 | NULL != pos_connection; | ||
197 | pos_connection = pos_connection->next) | ||
198 | { | ||
199 | num = GNUNET_TESTING_calculate_num (pos_connection, | ||
200 | cps->topology); | ||
201 | peer_connection = GNUNET_TESTING_get_peer (num, | ||
202 | cps->tl_system); | ||
203 | if (0 == GNUNET_memcmp (peer, | ||
204 | peer_connection)) | ||
205 | cps->con_num_notified++; | ||
206 | GNUNET_free (peer_connection); | ||
207 | } | ||
208 | if (cps->con_num_notified == con_num) | ||
209 | cps->additional_connects_notified++; | ||
210 | |||
211 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
212 | "con_num: %u add: %u num_notified: %u add_notified: %u peer: %s\n", | ||
213 | cps->con_num, | ||
214 | cps->additional_connects, | ||
215 | cps->con_num_notified, | ||
216 | cps->additional_connects_notified, | ||
217 | GNUNET_i2s (peer)); | ||
218 | if ((cps->con_num == cps->con_num_notified) && | ||
219 | (cps->additional_connects <= cps->additional_connects_notified)) | ||
220 | { | ||
221 | GNUNET_TESTING_async_finish (&cps->ac); | ||
222 | } | ||
223 | return ret; | ||
224 | } | ||
225 | |||
226 | |||
227 | /** | ||
228 | * The cleanup function of this cmd frees resources the cmd allocated. | ||
229 | * | ||
230 | */ | ||
231 | static void | ||
232 | connect_peers_cleanup (void *cls) | ||
233 | { | ||
234 | struct ConnectPeersState *cps = cls; | ||
235 | |||
236 | GNUNET_free (cps); | ||
237 | } | ||
238 | |||
239 | |||
240 | /** | ||
241 | * This function prepares an array with traits. | ||
242 | * | ||
243 | */ | ||
244 | enum GNUNET_GenericReturnValue | ||
245 | connect_peers_traits (void *cls, | ||
246 | const void **ret, | ||
247 | const char *trait, | ||
248 | unsigned int index) | ||
249 | { | ||
250 | struct ConnectPeersState *cps = cls; | ||
251 | struct GNUNET_TESTING_Trait traits[] = { | ||
252 | GNUNET_TRANSPORT_TESTING_make_trait_connect_peer_state ((const void *) cps), | ||
253 | GNUNET_TESTING_trait_end () | ||
254 | }; | ||
255 | return GNUNET_TESTING_get_trait (traits, | ||
256 | ret, | ||
257 | trait, | ||
258 | index); | ||
259 | } | ||
260 | |||
261 | |||
262 | struct GNUNET_TESTING_Command | ||
263 | GNUNET_TRANSPORT_cmd_connect_peers (const char *label, | ||
264 | const char *start_peer_label, | ||
265 | const char *create_label, | ||
266 | uint32_t num, | ||
267 | struct GNUNET_TESTING_NetjailTopology * | ||
268 | topology, | ||
269 | unsigned int additional_connects, | ||
270 | unsigned int wait_for_connect) | ||
271 | { | ||
272 | struct ConnectPeersState *cps; | ||
273 | unsigned int node_additional_connects; | ||
274 | |||
275 | node_additional_connects = GNUNET_TESTING_get_additional_connects (num, | ||
276 | topology); | ||
277 | |||
278 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
279 | "global: %u and local: %u additional_connects\n", | ||
280 | additional_connects, | ||
281 | node_additional_connects); | ||
282 | |||
283 | if (0 != node_additional_connects) | ||
284 | additional_connects = node_additional_connects; | ||
285 | |||
286 | cps = GNUNET_new (struct ConnectPeersState); | ||
287 | cps->start_peer_label = start_peer_label; | ||
288 | cps->num = num; | ||
289 | cps->create_label = create_label; | ||
290 | cps->topology = topology; | ||
291 | cps->notify_connect = notify_connect; | ||
292 | cps->additional_connects = additional_connects; | ||
293 | cps->wait_for_connect = wait_for_connect; | ||
294 | |||
295 | // FIXME: wrap with cmd_make_unblocking! | ||
296 | if (GNUNET_YES == wait_for_connect) | ||
297 | return GNUNET_TESTING_command_new_ac (cps, | ||
298 | label, | ||
299 | &connect_peers_run, | ||
300 | &connect_peers_cleanup, | ||
301 | &connect_peers_traits, | ||
302 | &cps->ac); | ||
303 | else | ||
304 | return GNUNET_TESTING_command_new (cps, | ||
305 | label, | ||
306 | &connect_peers_run, | ||
307 | &connect_peers_cleanup, | ||
308 | &connect_peers_traits); | ||
309 | } | ||
310 | |||
311 | |||
312 | // FIXME: likely not ideally placed here, move to its own file | ||
313 | GNUNET_TRANSPORT_TESTING_SIMPLE_TRAITS (GNUNET_TESTING_MAKE_IMPL_SIMPLE_TRAIT, | ||
314 | GNUNET_TRANSPORT_TESTING) | ||
diff --git a/src/service/transport/transport_api_cmd_send_simple.c b/src/service/transport/transport_api_cmd_send_simple.c new file mode 100644 index 000000000..59e5a6e6f --- /dev/null +++ b/src/service/transport/transport_api_cmd_send_simple.c | |||
@@ -0,0 +1,161 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file testing_api_cmd_start_peer.c | ||
23 | * @brief cmd to start a peer. | ||
24 | * @author t3sserakt | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_util_lib.h" | ||
28 | #include "gnunet_testing_ng_lib.h" | ||
29 | #include "gnunet_testing_netjail_lib.h" | ||
30 | #include "transport-testing2.h" | ||
31 | #include "transport-testing-cmds.h" | ||
32 | |||
33 | /** | ||
34 | * Generic logging shortcut | ||
35 | */ | ||
36 | #define LOG(kind, ...) GNUNET_log (kind, __VA_ARGS__) | ||
37 | |||
38 | /** | ||
39 | * Struct to hold information for callbacks. | ||
40 | * | ||
41 | */ | ||
42 | struct SendSimpleState | ||
43 | { | ||
44 | /** | ||
45 | * Number globally identifying the node. | ||
46 | * | ||
47 | */ | ||
48 | uint32_t num; | ||
49 | |||
50 | /** | ||
51 | * Label of the cmd to start a peer. | ||
52 | * | ||
53 | */ | ||
54 | const char *start_peer_label; | ||
55 | |||
56 | /** | ||
57 | * Label of the cmd which started the test system. | ||
58 | * | ||
59 | */ | ||
60 | const char *create_label; | ||
61 | |||
62 | /** | ||
63 | * The topology we get the connected nodes from. | ||
64 | */ | ||
65 | struct GNUNET_TESTING_NetjailTopology *topology; | ||
66 | }; | ||
67 | |||
68 | |||
69 | /** | ||
70 | * The cleanup function of this cmd frees resources the cmd allocated. | ||
71 | * | ||
72 | */ | ||
73 | static void | ||
74 | send_simple_cleanup (void *cls) | ||
75 | { | ||
76 | struct SendSimpleState *sss = cls; | ||
77 | |||
78 | GNUNET_free (sss); | ||
79 | } | ||
80 | |||
81 | |||
82 | static int | ||
83 | send_simple_cb (void *cls, | ||
84 | const struct GNUNET_ShortHashCode *key, | ||
85 | void *value) | ||
86 | { | ||
87 | struct SendSimpleState *sss = cls; | ||
88 | struct GNUNET_MQ_Handle *mq = value; | ||
89 | struct GNUNET_MQ_Envelope *env; | ||
90 | struct GNUNET_TRANSPORT_TESTING_TestMessage *test; | ||
91 | |||
92 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
93 | "Sending simple test message with mq %p\n", | ||
94 | mq); | ||
95 | |||
96 | env = GNUNET_MQ_msg_extra (test, | ||
97 | 1000 - sizeof(*test), | ||
98 | GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE); | ||
99 | test->num = htonl (sss->num); | ||
100 | memset (&test[1], | ||
101 | sss->num, | ||
102 | 1000 - sizeof(*test)); | ||
103 | GNUNET_MQ_send (mq, | ||
104 | env); | ||
105 | return GNUNET_OK; | ||
106 | } | ||
107 | |||
108 | |||
109 | /** | ||
110 | * The run method of this cmd will send a simple message to the connected peers. | ||
111 | * | ||
112 | */ | ||
113 | static void | ||
114 | send_simple_run (void *cls, | ||
115 | struct GNUNET_TESTING_Interpreter *is) | ||
116 | { | ||
117 | struct SendSimpleState *sss = cls; | ||
118 | const struct GNUNET_CONTAINER_MultiShortmap *connected_peers_map; | ||
119 | const struct GNUNET_TESTING_Command *peer1_cmd; | ||
120 | const struct GNUNET_TESTING_Command *system_cmd; | ||
121 | const struct GNUNET_TESTING_System *tl_system; | ||
122 | |||
123 | peer1_cmd = GNUNET_TESTING_interpreter_lookup_command (is, | ||
124 | sss->start_peer_label); | ||
125 | GNUNET_TRANSPORT_TESTING_get_trait_connected_peers_map (peer1_cmd, | ||
126 | &connected_peers_map); | ||
127 | |||
128 | system_cmd = GNUNET_TESTING_interpreter_lookup_command (is, | ||
129 | sss->create_label); | ||
130 | GNUNET_TESTING_get_trait_test_system (system_cmd, | ||
131 | &tl_system); | ||
132 | |||
133 | GNUNET_CONTAINER_multishortmap_iterate ( | ||
134 | (struct GNUNET_CONTAINER_MultiShortmap *) | ||
135 | connected_peers_map, send_simple_cb, | ||
136 | sss); | ||
137 | } | ||
138 | |||
139 | |||
140 | struct GNUNET_TESTING_Command | ||
141 | GNUNET_TRANSPORT_cmd_send_simple (const char *label, | ||
142 | const char *start_peer_label, | ||
143 | const char *create_label, | ||
144 | uint32_t num, | ||
145 | struct GNUNET_TESTING_NetjailTopology * | ||
146 | topology) | ||
147 | { | ||
148 | struct SendSimpleState *sss; | ||
149 | |||
150 | sss = GNUNET_new (struct SendSimpleState); | ||
151 | sss->num = num; | ||
152 | sss->start_peer_label = start_peer_label; | ||
153 | sss->create_label = create_label; | ||
154 | sss->topology = topology; | ||
155 | |||
156 | return GNUNET_TESTING_command_new (sss, | ||
157 | label, | ||
158 | &send_simple_run, | ||
159 | &send_simple_cleanup, | ||
160 | NULL); | ||
161 | } | ||
diff --git a/src/service/transport/transport_api_cmd_send_simple_performance.c b/src/service/transport/transport_api_cmd_send_simple_performance.c new file mode 100644 index 000000000..5e00712d4 --- /dev/null +++ b/src/service/transport/transport_api_cmd_send_simple_performance.c | |||
@@ -0,0 +1,219 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file testing_api_cmd_start_peer.c | ||
23 | * @brief cmd to start a peer. | ||
24 | * @author t3sserakt | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_util_lib.h" | ||
28 | #include "gnunet_testing_ng_lib.h" | ||
29 | #include "gnunet_testing_netjail_lib.h" | ||
30 | #include "transport-testing2.h" | ||
31 | #include "transport-testing-cmds.h" | ||
32 | |||
33 | /** | ||
34 | * Generic logging shortcut | ||
35 | */ | ||
36 | #define LOG(kind, ...) GNUNET_log (kind, __VA_ARGS__) | ||
37 | |||
38 | /** | ||
39 | * Struct to hold information for callbacks. | ||
40 | * | ||
41 | */ | ||
42 | struct SendSimplePerfState | ||
43 | { | ||
44 | /** | ||
45 | * Context for our asynchronous completion. | ||
46 | */ | ||
47 | struct GNUNET_TESTING_AsyncContext ac; | ||
48 | |||
49 | /** | ||
50 | * Label of the cmd to start a peer. | ||
51 | * | ||
52 | */ | ||
53 | const char *start_peer_label; | ||
54 | |||
55 | /** | ||
56 | * Label of the cmd which started the test system. | ||
57 | * | ||
58 | */ | ||
59 | const char *create_label; | ||
60 | |||
61 | /** | ||
62 | * The topology we get the connected nodes from. | ||
63 | */ | ||
64 | struct GNUNET_TESTING_NetjailTopology *topology; | ||
65 | |||
66 | /** | ||
67 | * Size of the message in bytes. | ||
68 | */ | ||
69 | unsigned int size; | ||
70 | |||
71 | /** | ||
72 | * Maximum number of messages per peer. | ||
73 | */ | ||
74 | unsigned int max_send; | ||
75 | }; | ||
76 | |||
77 | struct MQWrapper | ||
78 | { | ||
79 | /** | ||
80 | * State of the command. | ||
81 | */ | ||
82 | struct SendSimplePerfState *sss; | ||
83 | |||
84 | /** | ||
85 | * Message queue for a peer. | ||
86 | */ | ||
87 | struct GNUNET_MQ_Handle *mq; | ||
88 | |||
89 | /** | ||
90 | * Number of messages allready send. | ||
91 | */ | ||
92 | uint32_t num_send; | ||
93 | }; | ||
94 | |||
95 | /** | ||
96 | * The cleanup function of this cmd frees resources the cmd allocated. | ||
97 | * | ||
98 | */ | ||
99 | static void | ||
100 | send_simple_cleanup (void *cls) | ||
101 | { | ||
102 | struct SendSimpleState *sss = cls; | ||
103 | |||
104 | GNUNET_free (sss); | ||
105 | } | ||
106 | |||
107 | |||
108 | static void | ||
109 | send_simple_single (void *cls) | ||
110 | { | ||
111 | struct MQWrapper *mq_wrapper = cls; | ||
112 | struct GNUNET_MQ_Envelope *env; | ||
113 | struct GNUNET_TRANSPORT_TESTING_PerformanceTestMessage *test; | ||
114 | struct GNUNET_TIME_Absolute now; | ||
115 | |||
116 | now = GNUNET_TIME_absolute_get (); | ||
117 | mq_wrapper->num_send++; | ||
118 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
119 | "Sending simple test message with size %u number %u with mq %p max %u\n", | ||
120 | mq_wrapper->sss->size, | ||
121 | mq_wrapper->num_send, | ||
122 | mq_wrapper->mq, | ||
123 | mq_wrapper->sss->max_send); | ||
124 | |||
125 | env = GNUNET_MQ_msg_extra (test, | ||
126 | mq_wrapper->sss->size - sizeof(*test), | ||
127 | GNUNET_TRANSPORT_TESTING_SIMPLE_PERFORMANCE_MTYPE); | ||
128 | test->num = htonl (mq_wrapper->num_send); | ||
129 | test->time_send = GNUNET_TIME_absolute_hton (now); | ||
130 | memset (&test[1], | ||
131 | '1', | ||
132 | mq_wrapper->sss->size - sizeof(*test)); | ||
133 | GNUNET_MQ_send (mq_wrapper->mq, | ||
134 | env); | ||
135 | if (mq_wrapper->sss->max_send > mq_wrapper->num_send) | ||
136 | GNUNET_SCHEDULER_add_now (&send_simple_single, mq_wrapper); | ||
137 | else | ||
138 | GNUNET_TESTING_async_finish (&mq_wrapper->sss->ac); | ||
139 | } | ||
140 | |||
141 | |||
142 | static int | ||
143 | send_simple_cb (void *cls, | ||
144 | const struct GNUNET_ShortHashCode *key, | ||
145 | void *value) | ||
146 | { | ||
147 | struct SendSimplePerfState *sss = cls; | ||
148 | struct GNUNET_MQ_Handle *mq = value; | ||
149 | struct MQWrapper *mq_wrapper = GNUNET_new (struct MQWrapper); | ||
150 | |||
151 | mq_wrapper->sss = sss; | ||
152 | mq_wrapper->mq = mq; | ||
153 | send_simple_single (mq_wrapper); | ||
154 | |||
155 | return GNUNET_OK; | ||
156 | } | ||
157 | |||
158 | |||
159 | /** | ||
160 | * The run method of this cmd will send a simple message to the connected peers. | ||
161 | * | ||
162 | */ | ||
163 | static void | ||
164 | send_simple_run (void *cls, | ||
165 | struct GNUNET_TESTING_Interpreter *is) | ||
166 | { | ||
167 | struct SendSimplePerfState *sss = cls; | ||
168 | const struct GNUNET_CONTAINER_MultiShortmap *connected_peers_map; | ||
169 | const struct GNUNET_TESTING_Command *peer1_cmd; | ||
170 | const struct GNUNET_TESTING_Command *system_cmd; | ||
171 | const struct GNUNET_TESTING_System *tl_system; | ||
172 | |||
173 | |||
174 | peer1_cmd = GNUNET_TESTING_interpreter_lookup_command (is, | ||
175 | sss->start_peer_label); | ||
176 | GNUNET_TRANSPORT_TESTING_get_trait_connected_peers_map (peer1_cmd, | ||
177 | &connected_peers_map); | ||
178 | |||
179 | system_cmd = GNUNET_TESTING_interpreter_lookup_command (is, | ||
180 | sss->create_label); | ||
181 | GNUNET_TESTING_get_trait_test_system (system_cmd, | ||
182 | &tl_system); | ||
183 | |||
184 | GNUNET_CONTAINER_multishortmap_iterate ( | ||
185 | (struct GNUNET_CONTAINER_MultiShortmap *) | ||
186 | connected_peers_map, send_simple_cb, | ||
187 | sss); | ||
188 | } | ||
189 | |||
190 | |||
191 | struct GNUNET_TESTING_Command | ||
192 | GNUNET_TRANSPORT_cmd_send_simple_performance (const char *label, | ||
193 | const char *start_peer_label, | ||
194 | const char *create_label, | ||
195 | uint32_t num, | ||
196 | int size, | ||
197 | int max_send, | ||
198 | struct | ||
199 | GNUNET_TESTING_NetjailTopology * | ||
200 | topology) | ||
201 | { | ||
202 | struct SendSimplePerfState *sss; | ||
203 | struct GNUNET_TESTING_Command cmd; | ||
204 | |||
205 | sss = GNUNET_new (struct SendSimplePerfState); | ||
206 | sss->start_peer_label = start_peer_label; | ||
207 | sss->create_label = create_label; | ||
208 | sss->topology = topology; | ||
209 | sss->size = size; | ||
210 | sss->max_send = max_send; | ||
211 | cmd = GNUNET_TESTING_command_new_ac (sss, | ||
212 | label, | ||
213 | &send_simple_run, | ||
214 | &send_simple_cleanup, | ||
215 | NULL, | ||
216 | &sss->ac); | ||
217 | cmd.asynchronous_finish = GNUNET_YES; | ||
218 | return cmd; | ||
219 | } | ||
diff --git a/src/service/transport/transport_api_cmd_start_peer.c b/src/service/transport/transport_api_cmd_start_peer.c new file mode 100644 index 000000000..5492a7684 --- /dev/null +++ b/src/service/transport/transport_api_cmd_start_peer.c | |||
@@ -0,0 +1,484 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file testing_api_cmd_start_peer.c | ||
23 | * @brief cmd to start a peer. | ||
24 | * @author t3sserakt | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_util_lib.h" | ||
28 | #include "gnunet_testing_ng_lib.h" | ||
29 | #include "gnunet_testing_netjail_lib.h" | ||
30 | #include "gnunet_peerstore_service.h" | ||
31 | #include "gnunet_transport_core_service.h" | ||
32 | #include "gnunet_transport_application_service.h" | ||
33 | #include "transport-testing-cmds.h" | ||
34 | |||
35 | /** | ||
36 | * Generic logging shortcut | ||
37 | */ | ||
38 | #define LOG(kind, ...) GNUNET_log (kind, __VA_ARGS__) | ||
39 | |||
40 | |||
41 | static void | ||
42 | retrieve_hello (void *cls); | ||
43 | |||
44 | |||
45 | /** | ||
46 | * Callback delivering the hello of this peer from peerstore. | ||
47 | * | ||
48 | */ | ||
49 | static void | ||
50 | hello_iter_cb (void *cb_cls, | ||
51 | const struct GNUNET_PEERSTORE_Record *record, | ||
52 | const char *emsg) | ||
53 | { | ||
54 | struct GNUNET_TESTING_StartPeerState *sps = cb_cls; | ||
55 | if (NULL == record) | ||
56 | { | ||
57 | sps->pic = NULL; | ||
58 | sps->rh_task = GNUNET_SCHEDULER_add_now (retrieve_hello, sps); | ||
59 | return; | ||
60 | } | ||
61 | // Check record type et al? | ||
62 | sps->hello_size = record->value_size; | ||
63 | sps->hello = GNUNET_malloc (sps->hello_size); | ||
64 | memcpy (sps->hello, record->value, sps->hello_size); | ||
65 | sps->hello[sps->hello_size - 1] = '\0'; | ||
66 | |||
67 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
68 | "Our hello %s\n", | ||
69 | sps->hello); | ||
70 | GNUNET_PEERSTORE_iteration_stop (sps->pic); | ||
71 | sps->pic = NULL; | ||
72 | GNUNET_TESTING_async_finish (&sps->ac); | ||
73 | } | ||
74 | |||
75 | |||
76 | /** | ||
77 | * Function to start the retrieval task to retrieve the hello of this peer | ||
78 | * from the peerstore. | ||
79 | * | ||
80 | */ | ||
81 | static void | ||
82 | retrieve_hello (void *cls) | ||
83 | { | ||
84 | struct GNUNET_TESTING_StartPeerState *sps = cls; | ||
85 | sps->rh_task = NULL; | ||
86 | sps->pic = GNUNET_PEERSTORE_iteration_start (sps->ph, | ||
87 | "transport", | ||
88 | &sps->id, | ||
89 | GNUNET_PEERSTORE_TRANSPORT_HELLO_KEY, | ||
90 | hello_iter_cb, | ||
91 | sps); | ||
92 | |||
93 | } | ||
94 | |||
95 | |||
96 | /** | ||
97 | * Disconnect callback for the connection to the core service. | ||
98 | * | ||
99 | */ | ||
100 | static void | ||
101 | notify_disconnect (void *cls, | ||
102 | const struct GNUNET_PeerIdentity *peer, | ||
103 | void *handler_cls) | ||
104 | { | ||
105 | struct GNUNET_TESTING_StartPeerState *sps = cls; | ||
106 | |||
107 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
108 | "Peer %s disconnected from peer %u (`%s')\n", | ||
109 | GNUNET_i2s (peer), | ||
110 | sps->no, | ||
111 | GNUNET_i2s (&sps->id)); | ||
112 | |||
113 | } | ||
114 | |||
115 | |||
116 | /** | ||
117 | * Connect callback for the connection to the core service. | ||
118 | * | ||
119 | */ | ||
120 | static void * | ||
121 | notify_connect (void *cls, | ||
122 | const struct GNUNET_PeerIdentity *peer, | ||
123 | struct GNUNET_MQ_Handle *mq) | ||
124 | { | ||
125 | struct GNUNET_TESTING_StartPeerState *sps = cls; | ||
126 | struct GNUNET_ShortHashCode *key = GNUNET_new (struct GNUNET_ShortHashCode); | ||
127 | struct GNUNET_HashCode hc; | ||
128 | struct GNUNET_CRYPTO_EddsaPublicKey public_key = peer->public_key; | ||
129 | |||
130 | void *ret = (struct GNUNET_PeerIdentity *) peer; | ||
131 | |||
132 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
133 | "This Peer %s \n", | ||
134 | GNUNET_i2s (&sps->id)); | ||
135 | |||
136 | |||
137 | GNUNET_CRYPTO_hash (&public_key, sizeof(public_key), &hc); | ||
138 | |||
139 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
140 | "Peer %s connected to peer number %u with mq %p\n", | ||
141 | GNUNET_i2s (peer), | ||
142 | sps->no, | ||
143 | mq); | ||
144 | |||
145 | |||
146 | memcpy (key, | ||
147 | &hc, | ||
148 | sizeof (*key)); | ||
149 | GNUNET_CONTAINER_multishortmap_put (sps->connected_peers_map, | ||
150 | key, | ||
151 | mq, | ||
152 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE); | ||
153 | |||
154 | GNUNET_free (key); | ||
155 | |||
156 | sps->notify_connect (sps->ac.is, | ||
157 | peer); | ||
158 | |||
159 | return ret; | ||
160 | } | ||
161 | |||
162 | |||
163 | /** | ||
164 | * The run method of this cmd will start all services of a peer to test the transport service. | ||
165 | * | ||
166 | */ | ||
167 | static void | ||
168 | start_peer_run (void *cls, | ||
169 | struct GNUNET_TESTING_Interpreter *is) | ||
170 | { | ||
171 | struct GNUNET_TESTING_StartPeerState *sps = cls; | ||
172 | char *emsg = NULL; | ||
173 | struct GNUNET_PeerIdentity dummy; | ||
174 | const struct GNUNET_TESTING_Command *system_cmd; | ||
175 | const struct GNUNET_TESTING_System *tl_system; | ||
176 | char *home; | ||
177 | char *transport_unix_path; | ||
178 | char *tcp_communicator_unix_path; | ||
179 | char *udp_communicator_unix_path; | ||
180 | char *bindto; | ||
181 | char *bindto_udp; | ||
182 | |||
183 | if (GNUNET_NO == GNUNET_DISK_file_test (sps->cfgname)) | ||
184 | { | ||
185 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
186 | "File not found: `%s'\n", | ||
187 | sps->cfgname); | ||
188 | GNUNET_TESTING_interpreter_fail (is); | ||
189 | return; | ||
190 | } | ||
191 | |||
192 | |||
193 | sps->cfg = GNUNET_CONFIGURATION_create (); | ||
194 | GNUNET_assert (GNUNET_OK == | ||
195 | GNUNET_CONFIGURATION_load (sps->cfg, sps->cfgname)); | ||
196 | |||
197 | GNUNET_asprintf (&home, | ||
198 | "$GNUNET_TMP/test-transport/api-tcp-p%u", | ||
199 | sps->no); | ||
200 | |||
201 | GNUNET_asprintf (&transport_unix_path, | ||
202 | "$GNUNET_RUNTIME_DIR/tng-p%u.sock", | ||
203 | sps->no); | ||
204 | |||
205 | GNUNET_asprintf (&tcp_communicator_unix_path, | ||
206 | "$GNUNET_RUNTIME_DIR/tcp-comm-p%u.sock", | ||
207 | sps->no); | ||
208 | |||
209 | GNUNET_asprintf (&udp_communicator_unix_path, | ||
210 | "$GNUNET_RUNTIME_DIR/tcp-comm-p%u.sock", | ||
211 | sps->no); | ||
212 | |||
213 | GNUNET_asprintf (&bindto, | ||
214 | "%s:60002", | ||
215 | sps->node_ip); | ||
216 | |||
217 | GNUNET_asprintf (&bindto_udp, | ||
218 | "2086"); | ||
219 | |||
220 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
221 | "node_ip %s\n", | ||
222 | bindto); | ||
223 | |||
224 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
225 | "bind_udp %s\n", | ||
226 | GNUNET_YES == sps->broadcast ? | ||
227 | bindto_udp : bindto); | ||
228 | |||
229 | GNUNET_CONFIGURATION_set_value_string (sps->cfg, "PATHS", "GNUNET_TEST_HOME", | ||
230 | home); | ||
231 | GNUNET_CONFIGURATION_set_value_string (sps->cfg, "transport", "UNIXPATH", | ||
232 | transport_unix_path); | ||
233 | GNUNET_CONFIGURATION_set_value_string (sps->cfg, "communicator-tcp", | ||
234 | "BINDTO", | ||
235 | bindto); | ||
236 | GNUNET_CONFIGURATION_set_value_string (sps->cfg, "communicator-udp", | ||
237 | "BINDTO", | ||
238 | GNUNET_YES == sps->broadcast ? | ||
239 | bindto_udp : bindto); | ||
240 | GNUNET_CONFIGURATION_set_value_string (sps->cfg, "communicator-tcp", | ||
241 | "UNIXPATH", | ||
242 | tcp_communicator_unix_path); | ||
243 | GNUNET_CONFIGURATION_set_value_string (sps->cfg, "communicator-udp", | ||
244 | "UNIXPATH", | ||
245 | udp_communicator_unix_path); | ||
246 | |||
247 | |||
248 | system_cmd = GNUNET_TESTING_interpreter_lookup_command (is, | ||
249 | sps->system_label); | ||
250 | GNUNET_TESTING_get_trait_test_system (system_cmd, | ||
251 | &tl_system); | ||
252 | |||
253 | sps->tl_system = tl_system; | ||
254 | |||
255 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
256 | "Creating testing library with key number %u\n", | ||
257 | sps->no); | ||
258 | |||
259 | if (GNUNET_SYSERR == | ||
260 | GNUNET_TESTING_configuration_create ((struct | ||
261 | GNUNET_TESTING_System *) tl_system, | ||
262 | sps->cfg)) | ||
263 | { | ||
264 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
265 | "Testing library failed to create unique configuration based on `%s'\n", | ||
266 | sps->cfgname); | ||
267 | GNUNET_CONFIGURATION_destroy (sps->cfg); | ||
268 | GNUNET_TESTING_interpreter_fail (is); | ||
269 | return; | ||
270 | } | ||
271 | |||
272 | sps->peer = GNUNET_TESTING_peer_configure ((struct | ||
273 | GNUNET_TESTING_System *) sps-> | ||
274 | tl_system, | ||
275 | sps->cfg, | ||
276 | sps->no, | ||
277 | NULL, | ||
278 | &emsg); | ||
279 | if (NULL == sps->peer) | ||
280 | { | ||
281 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
282 | "Testing library failed to create unique configuration based on `%s': `%s' with key number %u\n", | ||
283 | sps->cfgname, | ||
284 | emsg, | ||
285 | sps->no); | ||
286 | GNUNET_free (emsg); | ||
287 | GNUNET_TESTING_interpreter_fail (is); | ||
288 | return; | ||
289 | } | ||
290 | |||
291 | if (GNUNET_OK != GNUNET_TESTING_peer_start (sps->peer)) | ||
292 | { | ||
293 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
294 | "Testing library failed to create unique configuration based on `%s'\n", | ||
295 | sps->cfgname); | ||
296 | GNUNET_free (emsg); | ||
297 | GNUNET_TESTING_interpreter_fail (is); | ||
298 | return; | ||
299 | } | ||
300 | |||
301 | memset (&dummy, | ||
302 | '\0', | ||
303 | sizeof(dummy)); | ||
304 | |||
305 | GNUNET_TESTING_peer_get_identity (sps->peer, | ||
306 | &sps->id); | ||
307 | |||
308 | if (0 == memcmp (&dummy, | ||
309 | &sps->id, | ||
310 | sizeof(struct GNUNET_PeerIdentity))) | ||
311 | { | ||
312 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
313 | "Testing library failed to obtain peer identity for peer %u\n", | ||
314 | sps->no); | ||
315 | GNUNET_free (emsg); | ||
316 | GNUNET_TESTING_interpreter_fail (is); | ||
317 | return; | ||
318 | } | ||
319 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
320 | "Peer %u configured with identity `%s'\n", | ||
321 | sps->no, | ||
322 | GNUNET_i2s_full (&sps->id)); | ||
323 | |||
324 | sps->th = GNUNET_TRANSPORT_core_connect (sps->cfg, | ||
325 | NULL, | ||
326 | sps->handlers, | ||
327 | sps, | ||
328 | ¬ify_connect, | ||
329 | ¬ify_disconnect); | ||
330 | if (NULL == sps->th) | ||
331 | { | ||
332 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
333 | "Failed to connect to transport service for peer `%s': `%s'\n", | ||
334 | sps->cfgname, | ||
335 | emsg); | ||
336 | GNUNET_free (emsg); | ||
337 | GNUNET_TESTING_interpreter_fail (is); | ||
338 | return; | ||
339 | } | ||
340 | |||
341 | sps->ph = GNUNET_PEERSTORE_connect (sps->cfg); | ||
342 | if (NULL == sps->ph) | ||
343 | { | ||
344 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
345 | "Failed to connect to peerstore service for peer `%s': `%s'\n", | ||
346 | sps->cfgname, | ||
347 | emsg); | ||
348 | GNUNET_free (emsg); | ||
349 | GNUNET_TESTING_interpreter_fail (is); | ||
350 | return; | ||
351 | } | ||
352 | |||
353 | sps->ah = GNUNET_TRANSPORT_application_init (sps->cfg); | ||
354 | if (NULL == sps->ah) | ||
355 | { | ||
356 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
357 | "Failed to initialize the TRANSPORT application suggestion client handle for peer `%s': `%s'\n", | ||
358 | sps->cfgname, | ||
359 | emsg); | ||
360 | GNUNET_free (emsg); | ||
361 | GNUNET_TESTING_interpreter_fail (is); | ||
362 | return; | ||
363 | } | ||
364 | sps->rh_task = GNUNET_SCHEDULER_add_now (retrieve_hello, sps); | ||
365 | GNUNET_free (home); | ||
366 | GNUNET_free (transport_unix_path); | ||
367 | GNUNET_free (tcp_communicator_unix_path); | ||
368 | GNUNET_free (udp_communicator_unix_path); | ||
369 | GNUNET_free (bindto); | ||
370 | GNUNET_free (bindto_udp); | ||
371 | } | ||
372 | |||
373 | |||
374 | /** | ||
375 | * The cleanup function of this cmd frees resources the cmd allocated. | ||
376 | * | ||
377 | */ | ||
378 | static void | ||
379 | start_peer_cleanup (void *cls) | ||
380 | { | ||
381 | struct GNUNET_TESTING_StartPeerState *sps = cls; | ||
382 | |||
383 | if (NULL != sps->handlers) | ||
384 | { | ||
385 | GNUNET_free (sps->handlers); | ||
386 | sps->handlers = NULL; | ||
387 | } | ||
388 | // TODO Investigate why this caused problems during shutdown. | ||
389 | /*if (NULL != sps->cfg) | ||
390 | { | ||
391 | GNUNET_CONFIGURATION_destroy (sps->cfg); | ||
392 | sps->cfg = NULL; | ||
393 | }*/ | ||
394 | GNUNET_free (sps->cfgname); | ||
395 | GNUNET_free (sps->node_ip); | ||
396 | GNUNET_free (sps->system_label); | ||
397 | GNUNET_free (sps->hello); | ||
398 | GNUNET_free (sps->connected_peers_map); | ||
399 | GNUNET_free (sps); | ||
400 | } | ||
401 | |||
402 | |||
403 | /** | ||
404 | * This function prepares an array with traits. | ||
405 | * | ||
406 | */ | ||
407 | static int | ||
408 | start_peer_traits (void *cls, | ||
409 | const void **ret, | ||
410 | const char *trait, | ||
411 | unsigned int index) | ||
412 | { | ||
413 | struct GNUNET_TESTING_StartPeerState *sps = cls; | ||
414 | struct GNUNET_TRANSPORT_ApplicationHandle *ah = sps->ah; | ||
415 | struct GNUNET_PeerIdentity *id = &sps->id; | ||
416 | struct GNUNET_CONTAINER_MultiShortmap *connected_peers_map = | ||
417 | sps->connected_peers_map; | ||
418 | char *hello = sps->hello; | ||
419 | size_t hello_size = sps->hello_size; | ||
420 | |||
421 | |||
422 | struct GNUNET_TESTING_Trait traits[] = { | ||
423 | GNUNET_TRANSPORT_TESTING_make_trait_application_handle ((const void *) ah), | ||
424 | GNUNET_TRANSPORT_TESTING_make_trait_peer_id ((const void *) id), | ||
425 | GNUNET_TRANSPORT_TESTING_make_trait_connected_peers_map ((const | ||
426 | void *) | ||
427 | connected_peers_map), | ||
428 | GNUNET_TRANSPORT_TESTING_make_trait_hello ((const void *) hello), | ||
429 | GNUNET_TRANSPORT_TESTING_make_trait_hello_size ((const void *) hello_size), | ||
430 | GNUNET_TRANSPORT_TESTING_make_trait_state ((const void *) sps), | ||
431 | GNUNET_TRANSPORT_TESTING_make_trait_broadcast ((const | ||
432 | void *) &sps->broadcast), | ||
433 | GNUNET_TESTING_trait_end () | ||
434 | }; | ||
435 | |||
436 | return GNUNET_TESTING_get_trait (traits, | ||
437 | ret, | ||
438 | trait, | ||
439 | index); | ||
440 | } | ||
441 | |||
442 | |||
443 | struct GNUNET_TESTING_Command | ||
444 | GNUNET_TRANSPORT_cmd_start_peer (const char *label, | ||
445 | const char *system_label, | ||
446 | uint32_t no, | ||
447 | const char *node_ip, | ||
448 | struct GNUNET_MQ_MessageHandler *handlers, | ||
449 | const char *cfgname, | ||
450 | GNUNET_TRANSPORT_notify_connect_cb | ||
451 | notify_connect, | ||
452 | unsigned int broadcast) | ||
453 | { | ||
454 | struct GNUNET_TESTING_StartPeerState *sps; | ||
455 | struct GNUNET_CONTAINER_MultiShortmap *connected_peers_map = | ||
456 | GNUNET_CONTAINER_multishortmap_create (1,GNUNET_NO); | ||
457 | unsigned int i; | ||
458 | |||
459 | sps = GNUNET_new (struct GNUNET_TESTING_StartPeerState); | ||
460 | sps->no = no; | ||
461 | sps->system_label = GNUNET_strdup (system_label); | ||
462 | sps->connected_peers_map = connected_peers_map; | ||
463 | sps->cfgname = GNUNET_strdup (cfgname); | ||
464 | sps->node_ip = GNUNET_strdup (node_ip); | ||
465 | sps->notify_connect = notify_connect; | ||
466 | sps->broadcast = broadcast; | ||
467 | |||
468 | if (NULL != handlers) | ||
469 | { | ||
470 | for (i = 0; NULL != handlers[i].cb; i++) | ||
471 | ; | ||
472 | sps->handlers = GNUNET_new_array (i + 1, | ||
473 | struct GNUNET_MQ_MessageHandler); | ||
474 | GNUNET_memcpy (sps->handlers, | ||
475 | handlers, | ||
476 | i * sizeof(struct GNUNET_MQ_MessageHandler)); | ||
477 | } | ||
478 | return GNUNET_TESTING_command_new_ac (sps, | ||
479 | label, | ||
480 | &start_peer_run, | ||
481 | &start_peer_cleanup, | ||
482 | &start_peer_traits, | ||
483 | &sps->ac); | ||
484 | } | ||
diff --git a/src/service/transport/transport_api_cmd_stop_peer.c b/src/service/transport/transport_api_cmd_stop_peer.c new file mode 100644 index 000000000..76a30d638 --- /dev/null +++ b/src/service/transport/transport_api_cmd_stop_peer.c | |||
@@ -0,0 +1,153 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file testing_api_cmd_stop_peer.c | ||
23 | * @brief cmd to stop a peer. | ||
24 | * @author t3sserakt | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_util_lib.h" | ||
28 | #include "gnunet_testing_ng_lib.h" | ||
29 | #include "gnunet_testing_netjail_lib.h" | ||
30 | #include "gnunet_peerstore_service.h" | ||
31 | #include "gnunet_transport_core_service.h" | ||
32 | #include "gnunet_transport_application_service.h" | ||
33 | #include "transport-testing-cmds.h" | ||
34 | |||
35 | /** | ||
36 | * Generic logging shortcut | ||
37 | */ | ||
38 | #define LOG(kind, ...) GNUNET_log (kind, __VA_ARGS__) | ||
39 | |||
40 | |||
41 | /** | ||
42 | * Struct to hold information for callbacks. | ||
43 | * | ||
44 | */ | ||
45 | struct StopPeerState | ||
46 | { | ||
47 | // Label of the cmd to start the peer. | ||
48 | const char *start_label; | ||
49 | }; | ||
50 | |||
51 | |||
52 | /** | ||
53 | * The run method of this cmd will stop all services of a peer which were used to test the transport service. | ||
54 | * | ||
55 | */ | ||
56 | static void | ||
57 | stop_peer_run (void *cls, | ||
58 | struct GNUNET_TESTING_Interpreter *is) | ||
59 | { | ||
60 | struct StopPeerState *stop_ps = cls; | ||
61 | const struct GNUNET_TESTING_StartPeerState *sps; | ||
62 | const struct GNUNET_TESTING_Command *start_cmd; | ||
63 | |||
64 | start_cmd = GNUNET_TESTING_interpreter_lookup_command (is, | ||
65 | stop_ps->start_label); | ||
66 | GNUNET_TRANSPORT_TESTING_get_trait_state (start_cmd, | ||
67 | &sps); | ||
68 | |||
69 | if (NULL != sps->pic) | ||
70 | { | ||
71 | GNUNET_PEERSTORE_iteration_stop (sps->pic); | ||
72 | } | ||
73 | if (NULL != sps->th) | ||
74 | { | ||
75 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
76 | "Disconnecting from TRANSPORT service\n"); | ||
77 | GNUNET_TRANSPORT_core_disconnect (sps->th); | ||
78 | } | ||
79 | if (NULL != sps->ah) | ||
80 | { | ||
81 | GNUNET_TRANSPORT_application_done (sps->ah); | ||
82 | } | ||
83 | if (NULL != sps->ph) | ||
84 | { | ||
85 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
86 | "Disconnecting from PEERSTORE service\n"); | ||
87 | GNUNET_PEERSTORE_disconnect (sps->ph); | ||
88 | } | ||
89 | if (NULL != sps->peer) | ||
90 | { | ||
91 | if (GNUNET_OK != | ||
92 | GNUNET_TESTING_peer_stop (sps->peer)) | ||
93 | { | ||
94 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
95 | "Testing lib failed to stop peer %u (`%s')\n", | ||
96 | sps->no, | ||
97 | GNUNET_i2s (&sps->id)); | ||
98 | } | ||
99 | GNUNET_TESTING_peer_destroy (sps->peer); | ||
100 | } | ||
101 | if (NULL != sps->rh_task) | ||
102 | GNUNET_SCHEDULER_cancel (sps->rh_task); | ||
103 | } | ||
104 | |||
105 | |||
106 | /** | ||
107 | * The cleanup function of this cmd frees resources the cmd allocated. | ||
108 | * | ||
109 | */ | ||
110 | static void | ||
111 | stop_peer_cleanup (void *cls) | ||
112 | { | ||
113 | struct StopPeerState *sps = cls; | ||
114 | |||
115 | GNUNET_free (sps); | ||
116 | } | ||
117 | |||
118 | |||
119 | /** | ||
120 | * Trait function of this cmd does nothing. | ||
121 | * | ||
122 | */ | ||
123 | static int | ||
124 | stop_peer_traits (void *cls, | ||
125 | const void **ret, | ||
126 | const char *trait, | ||
127 | unsigned int index) | ||
128 | { | ||
129 | return GNUNET_OK; | ||
130 | } | ||
131 | |||
132 | |||
133 | /** | ||
134 | * Create command. | ||
135 | * | ||
136 | * @param label name for command. | ||
137 | * @param start_label Label of the cmd to start the peer. | ||
138 | * @return command. | ||
139 | */ | ||
140 | struct GNUNET_TESTING_Command | ||
141 | GNUNET_TRANSPORT_cmd_stop_peer (const char *label, | ||
142 | const char *start_label) | ||
143 | { | ||
144 | struct StopPeerState *sps; | ||
145 | |||
146 | sps = GNUNET_new (struct StopPeerState); | ||
147 | sps->start_label = start_label; | ||
148 | return GNUNET_TESTING_command_new (sps, | ||
149 | label, | ||
150 | &stop_peer_run, | ||
151 | &stop_peer_cleanup, | ||
152 | &stop_peer_traits); | ||
153 | } | ||
diff --git a/src/service/transport/transport_api_traits.c b/src/service/transport/transport_api_traits.c new file mode 100644 index 000000000..ec53f6f2b --- /dev/null +++ b/src/service/transport/transport_api_traits.c | |||
@@ -0,0 +1,32 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/test_transport_start_with_config.c | ||
23 | * @brief Generic program to start testcases in an configurable topology. | ||
24 | * @author t3sserakt | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_testing_ng_lib.h" | ||
28 | #include "gnunet_testing_netjail_lib.h" | ||
29 | #include "transport-testing-cmds.h" | ||
30 | #include "gnunet_util_lib.h" | ||
31 | |||
32 | GNUNET_TRANSPORT_SIMPLE_TRAITS (GNUNET_TESTING_MAKE_IMPL_SIMPLE_TRAIT, GNUNET_TRANSPORT_TESTING) | ||
diff --git a/src/service/transport/upnp.sh b/src/service/transport/upnp.sh new file mode 100755 index 000000000..d01a1a1a1 --- /dev/null +++ b/src/service/transport/upnp.sh | |||
@@ -0,0 +1,22 @@ | |||
1 | #!/bin/bash | ||
2 | |||
3 | if [ $2 -eq 1 ] | ||
4 | then | ||
5 | if [ ! -d /tmp/netjail_scripts ] | ||
6 | then | ||
7 | mkdir /tmp/netjail_scripts | ||
8 | fi | ||
9 | |||
10 | ext_ifname=$(ip addr |grep UP|grep "@"|awk -F: '{printf $2"\n"}'|tr -d " "|awk -F@ '{printf $1" "}'|awk '{printf $1}') | ||
11 | listening_ip=$(ip addr |grep UP|grep "@"|awk -F: '{printf $2"\n"}'|tr -d " "|awk -F@ '{printf $1" "}'|awk '{printf $2}') | ||
12 | uuid=$(uuidgen) | ||
13 | cat miniupnpd.conf |sed 's/#ext_ifname=eth1/ext_ifname='$ext_ifname'/g'|sed 's/#listening_ip=eth0/listening_ip='$listening_ip'/g'|sed 's/uuid=73a9cb68-a00b-4d2c-8412-75fc989f0c6/uuid='$uuid'/g'|grep -v "^#"|grep -v '^$' > /tmp/netjail_scripts/gargoyle.txt | ||
14 | miniupnpd -d -f /tmp/netjail_scripts/gargoyle.txt -P /tmp/netjail_scripts/miniupnpd_$1.pid & | ||
15 | else | ||
16 | kill $(cat /tmp/netjail_scripts/miniupnpd_$1.pid) | ||
17 | fi | ||
18 | |||
19 | |||
20 | |||
21 | |||
22 | |||