diff options
author | Matthias Wachs <wachs@net.in.tum.de> | 2011-09-14 16:46:38 +0000 |
---|---|---|
committer | Matthias Wachs <wachs@net.in.tum.de> | 2011-09-14 16:46:38 +0000 |
commit | f078bf6f9b737e52d3fb7f944be0d0b600686e64 (patch) | |
tree | f542e1eff8408c77ec13cea499314b769c8748a1 /src | |
parent | a86d442e62e83ef0a9744ea32ad8e09251096675 (diff) | |
download | gnunet-f078bf6f9b737e52d3fb7f944be0d0b600686e64.tar.gz gnunet-f078bf6f9b737e52d3fb7f944be0d0b600686e64.zip |
http plugin revisited
Diffstat (limited to 'src')
-rw-r--r-- | src/transport/plugin_transport_http.h | 245 | ||||
-rw-r--r-- | src/transport/plugin_transport_http_client.c | 236 | ||||
-rw-r--r-- | src/transport/plugin_transport_http_new.c | 963 | ||||
-rw-r--r-- | src/transport/plugin_transport_http_server.c | 374 |
4 files changed, 1818 insertions, 0 deletions
diff --git a/src/transport/plugin_transport_http.h b/src/transport/plugin_transport_http.h new file mode 100644 index 000000000..84af33a59 --- /dev/null +++ b/src/transport/plugin_transport_http.h | |||
@@ -0,0 +1,245 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Christian Grothoff (and other contributing authors) | ||
4 | |||
5 | GNUnet is free software; you can redistribute it and/or modify | ||
6 | it under the terms of the GNU General Public License as published | ||
7 | by the Free Software Foundation; either version 3, or (at your | ||
8 | 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 | General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with GNUnet; see the file COPYING. If not, write to the | ||
17 | Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
18 | Boston, MA 02111-1307, USA. | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/plugin_transport_http.h | ||
23 | * @brief http transport service plugin | ||
24 | * @author Matthias Wachs | ||
25 | */ | ||
26 | |||
27 | #include "platform.h" | ||
28 | #include "gnunet_common.h" | ||
29 | #include "gnunet_constants.h" | ||
30 | #include "gnunet_protocols.h" | ||
31 | #include "gnunet_connection_lib.h" | ||
32 | #include "gnunet_service_lib.h" | ||
33 | #include "gnunet_statistics_service.h" | ||
34 | #include "gnunet_transport_service.h" | ||
35 | #include "gnunet_resolver_service.h" | ||
36 | #include "gnunet_server_lib.h" | ||
37 | #include "gnunet_container_lib.h" | ||
38 | #include "gnunet_transport_plugin.h" | ||
39 | #include "gnunet_os_lib.h" | ||
40 | #include "gnunet_nat_lib.h" | ||
41 | #include "microhttpd.h" | ||
42 | #include <curl/curl.h> | ||
43 | |||
44 | |||
45 | #define DEBUG_HTTP GNUNET_YES | ||
46 | #define VERBOSE_SERVER GNUNET_YES | ||
47 | #define VERBOSE_CLIENT GNUNET_YES | ||
48 | |||
49 | #if BUILD_HTTPS | ||
50 | #define LIBGNUNET_PLUGIN_TRANSPORT_INIT libgnunet_plugin_transport_https_init | ||
51 | #define LIBGNUNET_PLUGIN_TRANSPORT_DONE libgnunet_plugin_transport_https_done | ||
52 | #else | ||
53 | #define LIBGNUNET_PLUGIN_TRANSPORT_INIT libgnunet_plugin_transport_http_init | ||
54 | #define LIBGNUNET_PLUGIN_TRANSPORT_DONE libgnunet_plugin_transport_http_done | ||
55 | #endif | ||
56 | |||
57 | |||
58 | #define HTTP_NOT_VALIDATED_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 3) | ||
59 | |||
60 | /** | ||
61 | * Encapsulation of all of the state of the plugin. | ||
62 | */ | ||
63 | struct Plugin | ||
64 | { | ||
65 | /** | ||
66 | * Our environment. | ||
67 | */ | ||
68 | struct GNUNET_TRANSPORT_PluginEnvironment *env; | ||
69 | |||
70 | /** | ||
71 | * List of open sessions. | ||
72 | */ | ||
73 | struct Session *head; | ||
74 | |||
75 | struct Session *tail; | ||
76 | |||
77 | /** | ||
78 | * NAT handle & address management | ||
79 | */ | ||
80 | struct GNUNET_NAT_Handle *nat; | ||
81 | |||
82 | /** | ||
83 | * ipv4 DLL head | ||
84 | */ | ||
85 | struct IPv4HttpAddressWrapper *ipv4_addr_head; | ||
86 | |||
87 | /** | ||
88 | * ipv4 DLL tail | ||
89 | */ | ||
90 | struct IPv4HttpAddressWrapper *ipv4_addr_tail; | ||
91 | |||
92 | /** | ||
93 | * ipv6 DLL head | ||
94 | */ | ||
95 | struct IPv6HttpAddressWrapper *ipv6_addr_head; | ||
96 | |||
97 | /** | ||
98 | * ipv6 DLL tail | ||
99 | */ | ||
100 | struct IPv6HttpAddressWrapper *ipv6_addr_tail; | ||
101 | |||
102 | |||
103 | /* Plugin configuration */ | ||
104 | |||
105 | char *name; | ||
106 | |||
107 | char *protocol; | ||
108 | |||
109 | int ipv4; | ||
110 | |||
111 | int ipv6; | ||
112 | |||
113 | uint16_t port; | ||
114 | |||
115 | int max_connections; | ||
116 | |||
117 | /* | ||
118 | * Server handles | ||
119 | */ | ||
120 | |||
121 | struct MHD_Daemon *server_v4; | ||
122 | |||
123 | struct MHD_Daemon *server_v6; | ||
124 | |||
125 | char *crypto_init; | ||
126 | char *key; | ||
127 | char *cert; | ||
128 | |||
129 | /* | ||
130 | * Client handles | ||
131 | */ | ||
132 | |||
133 | /** | ||
134 | * cURL Multihandle | ||
135 | */ | ||
136 | CURLM *client_mh; | ||
137 | |||
138 | }; | ||
139 | |||
140 | /** | ||
141 | * Session handle for connections. | ||
142 | */ | ||
143 | struct Session | ||
144 | { | ||
145 | |||
146 | /** | ||
147 | * Stored in a linked list. | ||
148 | */ | ||
149 | struct Session *next; | ||
150 | |||
151 | /** | ||
152 | * Stored in a linked list. | ||
153 | */ | ||
154 | struct Session *prev; | ||
155 | |||
156 | /** | ||
157 | * Pointer to the global plugin struct. | ||
158 | */ | ||
159 | struct Plugin *plugin; | ||
160 | |||
161 | /** | ||
162 | * The client (used to identify this connection) | ||
163 | */ | ||
164 | /* void *client; */ | ||
165 | |||
166 | /** | ||
167 | * Continuation function to call once the transmission buffer | ||
168 | * has again space available. NULL if there is no | ||
169 | * continuation to call. | ||
170 | */ | ||
171 | GNUNET_TRANSPORT_TransmitContinuation transmit_cont; | ||
172 | |||
173 | |||
174 | void *addr; | ||
175 | |||
176 | size_t addrlen; | ||
177 | |||
178 | /** | ||
179 | * Closure for transmit_cont. | ||
180 | */ | ||
181 | void *transmit_cont_cls; | ||
182 | |||
183 | /** | ||
184 | * To whom are we talking to (set to our identity | ||
185 | * if we are still waiting for the welcome message) | ||
186 | */ | ||
187 | struct GNUNET_PeerIdentity target; | ||
188 | |||
189 | /** | ||
190 | * At what time did we reset last_received last? | ||
191 | */ | ||
192 | //struct GNUNET_TIME_Absolute last_quota_update; | ||
193 | |||
194 | /** | ||
195 | * How many bytes have we received since the "last_quota_update" | ||
196 | * timestamp? | ||
197 | */ | ||
198 | //uint64_t last_received; | ||
199 | |||
200 | /** | ||
201 | * Number of bytes per ms that this peer is allowed | ||
202 | * to send to us. | ||
203 | */ | ||
204 | //uint32_t quota; | ||
205 | |||
206 | |||
207 | int inbound; | ||
208 | |||
209 | void *client_put; | ||
210 | void *client_get; | ||
211 | |||
212 | |||
213 | }; | ||
214 | |||
215 | const char * | ||
216 | http_plugin_address_to_string (void *cls, const void *addr, size_t addrlen); | ||
217 | |||
218 | int | ||
219 | client_disconnect (struct Session *s); | ||
220 | |||
221 | int | ||
222 | client_connect (struct Session *s); | ||
223 | |||
224 | int | ||
225 | client_send (struct Session *s, const char *msgbuf, size_t msgbuf_size); | ||
226 | |||
227 | int | ||
228 | client_start (struct Plugin *plugin); | ||
229 | |||
230 | void | ||
231 | client_stop (struct Plugin *plugin); | ||
232 | |||
233 | int | ||
234 | server_disconnect (struct Session *s); | ||
235 | |||
236 | int | ||
237 | server_send (struct Session *s, const char *msgbuf, size_t msgbuf_size); | ||
238 | |||
239 | int | ||
240 | server_start (struct Plugin *plugin); | ||
241 | |||
242 | void | ||
243 | server_stop (struct Plugin *plugin); | ||
244 | |||
245 | /* end of plugin_transport_http.h */ | ||
diff --git a/src/transport/plugin_transport_http_client.c b/src/transport/plugin_transport_http_client.c new file mode 100644 index 000000000..9a5d4b261 --- /dev/null +++ b/src/transport/plugin_transport_http_client.c | |||
@@ -0,0 +1,236 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Christian Grothoff (and other contributing authors) | ||
4 | |||
5 | GNUnet is free software; you can redistribute it and/or modify | ||
6 | it under the terms of the GNU General Public License as published | ||
7 | by the Free Software Foundation; either version 3, or (at your | ||
8 | 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 | General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with GNUnet; see the file COPYING. If not, write to the | ||
17 | Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
18 | Boston, MA 02111-1307, USA. | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/plugin_transport_http_client.c | ||
23 | * @brief http transport service plugin | ||
24 | * @author Matthias Wachs | ||
25 | */ | ||
26 | |||
27 | #include "plugin_transport_http.h" | ||
28 | |||
29 | #if VERBOSE_CLIENT | ||
30 | /** | ||
31 | * Function to log curl debug messages with GNUNET_log | ||
32 | * @param curl handle | ||
33 | * @param type curl_infotype | ||
34 | * @param data data | ||
35 | * @param size size | ||
36 | * @param cls closure | ||
37 | * @return 0 | ||
38 | */ | ||
39 | static int | ||
40 | client_log (CURL * curl, curl_infotype type, char *data, size_t size, void *cls) | ||
41 | { | ||
42 | if (type == CURLINFO_TEXT) | ||
43 | { | ||
44 | char text[size + 2]; | ||
45 | |||
46 | memcpy (text, data, size); | ||
47 | if (text[size - 1] == '\n') | ||
48 | text[size] = '\0'; | ||
49 | else | ||
50 | { | ||
51 | text[size] = '\n'; | ||
52 | text[size + 1] = '\0'; | ||
53 | } | ||
54 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Client: %X - %s", cls, text); | ||
55 | } | ||
56 | return 0; | ||
57 | } | ||
58 | #endif | ||
59 | |||
60 | int | ||
61 | client_disconnect (struct Session *s) | ||
62 | { | ||
63 | int res = GNUNET_OK; | ||
64 | CURLMcode mret; | ||
65 | |||
66 | #if DEBUG_HTTP | ||
67 | GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, s->plugin->name, | ||
68 | "Deleting outbound session peer `%s'\n", | ||
69 | GNUNET_i2s (&s->target)); | ||
70 | #endif | ||
71 | |||
72 | mret = curl_multi_remove_handle (s->plugin->client_mh, s->client_put); | ||
73 | if (mret != CURLM_OK) | ||
74 | { | ||
75 | curl_easy_cleanup (s->client_put); | ||
76 | res = GNUNET_SYSERR; | ||
77 | GNUNET_break (0); | ||
78 | } | ||
79 | curl_easy_cleanup (s->client_put); | ||
80 | |||
81 | mret = curl_multi_remove_handle (s->plugin->client_mh, s->client_get); | ||
82 | if (mret != CURLM_OK) | ||
83 | { | ||
84 | curl_easy_cleanup (s->client_get); | ||
85 | res = GNUNET_SYSERR; | ||
86 | GNUNET_break (0); | ||
87 | } | ||
88 | curl_easy_cleanup (s->client_get); | ||
89 | |||
90 | return res; | ||
91 | } | ||
92 | |||
93 | int | ||
94 | client_send (struct Session *s, const char *msgbuf, size_t msgbuf_size) | ||
95 | { | ||
96 | return GNUNET_OK; | ||
97 | } | ||
98 | |||
99 | int | ||
100 | client_connect (struct Session *s) | ||
101 | { | ||
102 | int res = GNUNET_OK; | ||
103 | char *url; | ||
104 | CURLMcode mret; | ||
105 | |||
106 | #if DEBUG_HTTP | ||
107 | GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, s->plugin->name, | ||
108 | "Initiating outbound session peer `%s'\n", | ||
109 | GNUNET_i2s (&s->target)); | ||
110 | #endif | ||
111 | |||
112 | s->inbound = GNUNET_NO; | ||
113 | |||
114 | /* create url */ | ||
115 | GNUNET_asprintf (&url, "%s://%s/", s->plugin->protocol, | ||
116 | http_plugin_address_to_string (NULL, s->addr, s->addrlen)); | ||
117 | |||
118 | #if DEBUG_HTTP | ||
119 | GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, s->plugin->name, "URL `%s'\n", url); | ||
120 | #endif | ||
121 | |||
122 | /* create get connection */ | ||
123 | s->client_get = curl_easy_init (); | ||
124 | #if VERBOSE_CLIENT | ||
125 | curl_easy_setopt (s->client_get, CURLOPT_VERBOSE, 1L); | ||
126 | curl_easy_setopt (s->client_get, CURLOPT_DEBUGFUNCTION, &client_log); | ||
127 | curl_easy_setopt (s->client_get, CURLOPT_DEBUGDATA, s->client_get); | ||
128 | #endif | ||
129 | #if BUILD_HTTPS | ||
130 | curl_easy_setopt (s->client_get, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1); | ||
131 | curl_easy_setopt (s->client_get, CURLOPT_SSL_VERIFYPEER, 0); | ||
132 | curl_easy_setopt (s->client_get, CURLOPT_SSL_VERIFYHOST, 0); | ||
133 | #endif | ||
134 | curl_easy_setopt (s->client_get, CURLOPT_URL, url); | ||
135 | //curl_easy_setopt (s->client_get, CURLOPT_HEADERFUNCTION, &curl_get_header_cb); | ||
136 | //curl_easy_setopt (s->client_get, CURLOPT_WRITEHEADER, ps); | ||
137 | //curl_easy_setopt (s->client_get, CURLOPT_READFUNCTION, curl_send_cb); | ||
138 | //curl_easy_setopt (s->client_get, CURLOPT_READDATA, ps); | ||
139 | //curl_easy_setopt (s->client_get, CURLOPT_WRITEFUNCTION, curl_receive_cb); | ||
140 | //curl_easy_setopt (s->client_get, CURLOPT_WRITEDATA, ps); | ||
141 | curl_easy_setopt (s->client_get, CURLOPT_TIMEOUT, | ||
142 | (long) GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT.rel_value); | ||
143 | //curl_easy_setopt (s->client_get, CURLOPT_PRIVATE, ps); | ||
144 | curl_easy_setopt (s->client_get, CURLOPT_CONNECTTIMEOUT, | ||
145 | (long) HTTP_NOT_VALIDATED_TIMEOUT.rel_value); | ||
146 | curl_easy_setopt (s->client_get, CURLOPT_BUFFERSIZE, | ||
147 | 2 * GNUNET_SERVER_MAX_MESSAGE_SIZE); | ||
148 | #if CURL_TCP_NODELAY | ||
149 | curl_easy_setopt (ps->recv_endpoint, CURLOPT_TCP_NODELAY, 1); | ||
150 | #endif | ||
151 | |||
152 | /* create put connection */ | ||
153 | s->client_put = curl_easy_init (); | ||
154 | #if VERBOSE_CLIENT | ||
155 | curl_easy_setopt (s->client_put, CURLOPT_VERBOSE, 1L); | ||
156 | curl_easy_setopt (s->client_put, CURLOPT_DEBUGFUNCTION, &client_log); | ||
157 | curl_easy_setopt (s->client_put, CURLOPT_DEBUGDATA, s->client_put); | ||
158 | #endif | ||
159 | #if BUILD_HTTPS | ||
160 | curl_easy_setopt (s->client_put, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1); | ||
161 | curl_easy_setopt (s->client_put, CURLOPT_SSL_VERIFYPEER, 0); | ||
162 | curl_easy_setopt (s->client_put, CURLOPT_SSL_VERIFYHOST, 0); | ||
163 | #endif | ||
164 | curl_easy_setopt (s->client_put, CURLOPT_URL, url); | ||
165 | curl_easy_setopt (s->client_put, CURLOPT_PUT, 1L); | ||
166 | //curl_easy_setopt (s->client_put, CURLOPT_HEADERFUNCTION, &curl_put_header_cb); | ||
167 | //curl_easy_setopt (s->client_put, CURLOPT_WRITEHEADER, ps); | ||
168 | //curl_easy_setopt (s->client_put, CURLOPT_READFUNCTION, curl_send_cb); | ||
169 | //curl_easy_setopt (s->client_put, CURLOPT_READDATA, ps); | ||
170 | //curl_easy_setopt (s->client_put, CURLOPT_WRITEFUNCTION, curl_receive_cb); | ||
171 | //curl_easy_setopt (s->client_put, CURLOPT_WRITEDATA, ps); | ||
172 | curl_easy_setopt (s->client_put, CURLOPT_TIMEOUT, | ||
173 | (long) GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT.rel_value); | ||
174 | //curl_easy_setopt (s->client_put, CURLOPT_PRIVATE, ps); | ||
175 | curl_easy_setopt (s->client_put, CURLOPT_CONNECTTIMEOUT, | ||
176 | (long) HTTP_NOT_VALIDATED_TIMEOUT.rel_value); | ||
177 | curl_easy_setopt (s->client_put, CURLOPT_BUFFERSIZE, | ||
178 | 2 * GNUNET_SERVER_MAX_MESSAGE_SIZE); | ||
179 | #if CURL_TCP_NODELAY | ||
180 | curl_easy_setopt (s->client_put, CURLOPT_TCP_NODELAY, 1); | ||
181 | #endif | ||
182 | |||
183 | GNUNET_free (url); | ||
184 | |||
185 | mret = curl_multi_add_handle (s->plugin->client_mh, s->client_get); | ||
186 | if (mret != CURLM_OK) | ||
187 | { | ||
188 | curl_easy_cleanup (s->client_get); | ||
189 | res = GNUNET_SYSERR; | ||
190 | GNUNET_break (0); | ||
191 | } | ||
192 | |||
193 | mret = curl_multi_add_handle (s->plugin->client_mh, s->client_put); | ||
194 | if (mret != CURLM_OK) | ||
195 | { | ||
196 | curl_multi_remove_handle (s->plugin->client_mh, s->client_get); | ||
197 | curl_easy_cleanup (s->client_get); | ||
198 | curl_easy_cleanup (s->client_put); | ||
199 | res = GNUNET_SYSERR; | ||
200 | GNUNET_break (0); | ||
201 | } | ||
202 | |||
203 | /* Perform connect */ | ||
204 | |||
205 | return res; | ||
206 | } | ||
207 | |||
208 | int | ||
209 | client_start (struct Plugin *plugin) | ||
210 | { | ||
211 | int res = GNUNET_OK; | ||
212 | |||
213 | curl_global_init (CURL_GLOBAL_ALL); | ||
214 | plugin->client_mh = curl_multi_init (); | ||
215 | |||
216 | if (NULL == plugin->client_mh) | ||
217 | { | ||
218 | GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name, | ||
219 | _ | ||
220 | ("Could not initialize curl multi handle, failed to start %s plugin!\n"), | ||
221 | plugin->name); | ||
222 | res = GNUNET_SYSERR; | ||
223 | } | ||
224 | return res; | ||
225 | } | ||
226 | |||
227 | void | ||
228 | client_stop (struct Plugin *plugin) | ||
229 | { | ||
230 | curl_multi_cleanup (plugin->client_mh); | ||
231 | curl_global_cleanup (); | ||
232 | } | ||
233 | |||
234 | |||
235 | |||
236 | /* end of plugin_transport_http_client.c */ | ||
diff --git a/src/transport/plugin_transport_http_new.c b/src/transport/plugin_transport_http_new.c new file mode 100644 index 000000000..3ad7dbac4 --- /dev/null +++ b/src/transport/plugin_transport_http_new.c | |||
@@ -0,0 +1,963 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Christian Grothoff (and other contributing authors) | ||
4 | |||
5 | GNUnet is free software; you can redistribute it and/or modify | ||
6 | it under the terms of the GNU General Public License as published | ||
7 | by the Free Software Foundation; either version 3, or (at your | ||
8 | 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 | General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with GNUnet; see the file COPYING. If not, write to the | ||
17 | Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
18 | Boston, MA 02111-1307, USA. | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/plugin_transport_http.c | ||
23 | * @brief http transport service plugin | ||
24 | * @author Matthias Wachs | ||
25 | */ | ||
26 | |||
27 | #include "plugin_transport_http.h" | ||
28 | |||
29 | /** | ||
30 | * After how long do we expire an address that we | ||
31 | * learned from another peer if it is not reconfirmed | ||
32 | * by anyone? | ||
33 | */ | ||
34 | #define LEARNED_ADDRESS_EXPIRATION GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 6) | ||
35 | |||
36 | /** | ||
37 | * Network format for IPv4 addresses. | ||
38 | */ | ||
39 | struct IPv4HttpAddress | ||
40 | { | ||
41 | /** | ||
42 | * IPv4 address, in network byte order. | ||
43 | */ | ||
44 | uint32_t ipv4_addr GNUNET_PACKED; | ||
45 | |||
46 | /** | ||
47 | * Port number, in network byte order. | ||
48 | */ | ||
49 | uint16_t port GNUNET_PACKED; | ||
50 | }; | ||
51 | |||
52 | /** | ||
53 | * Wrapper to manage IPv4 addresses | ||
54 | */ | ||
55 | struct IPv4HttpAddressWrapper | ||
56 | { | ||
57 | /** | ||
58 | * Linked list next | ||
59 | */ | ||
60 | struct IPv4HttpAddressWrapper *next; | ||
61 | |||
62 | /** | ||
63 | * Linked list previous | ||
64 | */ | ||
65 | struct IPv4HttpAddressWrapper *prev; | ||
66 | |||
67 | struct IPv4HttpAddress *addr; | ||
68 | }; | ||
69 | |||
70 | /** | ||
71 | * Network format for IPv6 addresses. | ||
72 | */ | ||
73 | struct IPv6HttpAddress | ||
74 | { | ||
75 | /** | ||
76 | * IPv6 address. | ||
77 | */ | ||
78 | struct in6_addr ipv6_addr GNUNET_PACKED; | ||
79 | |||
80 | /** | ||
81 | * Port number, in network byte order. | ||
82 | */ | ||
83 | uint16_t port GNUNET_PACKED; | ||
84 | |||
85 | }; | ||
86 | |||
87 | /** | ||
88 | * Wrapper for IPv4 addresses. | ||
89 | */ | ||
90 | struct IPv6HttpAddressWrapper | ||
91 | { | ||
92 | /** | ||
93 | * Linked list next | ||
94 | */ | ||
95 | struct IPv6HttpAddressWrapper *next; | ||
96 | |||
97 | /** | ||
98 | * Linked list previous | ||
99 | */ | ||
100 | struct IPv6HttpAddressWrapper *prev; | ||
101 | |||
102 | struct IPv6HttpAddress *addr; | ||
103 | }; | ||
104 | |||
105 | |||
106 | /** | ||
107 | * Context for address to string conversion. | ||
108 | */ | ||
109 | struct PrettyPrinterContext | ||
110 | { | ||
111 | /** | ||
112 | * Function to call with the result. | ||
113 | */ | ||
114 | GNUNET_TRANSPORT_AddressStringCallback asc; | ||
115 | |||
116 | /** | ||
117 | * Plugin | ||
118 | */ | ||
119 | struct Plugin *plugin; | ||
120 | |||
121 | /** | ||
122 | * Clsoure for 'asc'. | ||
123 | */ | ||
124 | void *asc_cls; | ||
125 | |||
126 | /** | ||
127 | * Port to add after the IP address. | ||
128 | */ | ||
129 | uint16_t port; | ||
130 | }; | ||
131 | |||
132 | |||
133 | /** | ||
134 | * Encapsulation of all of the state of the plugin. | ||
135 | */ | ||
136 | struct Plugin; | ||
137 | |||
138 | |||
139 | |||
140 | /** | ||
141 | * Append our port and forward the result. | ||
142 | * | ||
143 | * @param cls the 'struct PrettyPrinterContext*' | ||
144 | * @param hostname hostname part of the address | ||
145 | */ | ||
146 | static void | ||
147 | append_port (void *cls, const char *hostname) | ||
148 | { | ||
149 | struct PrettyPrinterContext *ppc = cls; | ||
150 | char *ret; | ||
151 | |||
152 | if (hostname == NULL) | ||
153 | { | ||
154 | ppc->asc (ppc->asc_cls, NULL); | ||
155 | GNUNET_free (ppc); | ||
156 | return; | ||
157 | } | ||
158 | GNUNET_asprintf (&ret, "%s://%s:%d", ppc->plugin->protocol, hostname, | ||
159 | ppc->plugin->port); | ||
160 | ppc->asc (ppc->asc_cls, ret); | ||
161 | GNUNET_free (ret); | ||
162 | } | ||
163 | |||
164 | |||
165 | /** | ||
166 | * Convert the transports address to a nice, human-readable | ||
167 | * format. | ||
168 | * | ||
169 | * @param cls closure | ||
170 | * @param type name of the transport that generated the address | ||
171 | * @param addr one of the addresses of the host, NULL for the last address | ||
172 | * the specific address format depends on the transport | ||
173 | * @param addrlen length of the address | ||
174 | * @param numeric should (IP) addresses be displayed in numeric form? | ||
175 | * @param timeout after how long should we give up? | ||
176 | * @param asc function to call on each string | ||
177 | * @param asc_cls closure for asc | ||
178 | */ | ||
179 | static void | ||
180 | http_plugin_address_pretty_printer (void *cls, const char *type, | ||
181 | const void *addr, size_t addrlen, | ||
182 | int numeric, | ||
183 | struct GNUNET_TIME_Relative timeout, | ||
184 | GNUNET_TRANSPORT_AddressStringCallback asc, | ||
185 | void *asc_cls) | ||
186 | { | ||
187 | GNUNET_assert (cls != NULL); | ||
188 | struct PrettyPrinterContext *ppc; | ||
189 | const void *sb; | ||
190 | size_t sbs; | ||
191 | struct sockaddr_in a4; | ||
192 | struct sockaddr_in6 a6; | ||
193 | const struct IPv4HttpAddress *t4; | ||
194 | const struct IPv6HttpAddress *t6; | ||
195 | uint16_t port; | ||
196 | |||
197 | if (addrlen == sizeof (struct IPv6HttpAddress)) | ||
198 | { | ||
199 | t6 = addr; | ||
200 | memset (&a6, 0, sizeof (a6)); | ||
201 | a6.sin6_family = AF_INET6; | ||
202 | a6.sin6_port = t6->port; | ||
203 | memcpy (&a6.sin6_addr, &t6->ipv6_addr, sizeof (struct in6_addr)); | ||
204 | port = ntohs (t6->port); | ||
205 | sb = &a6; | ||
206 | sbs = sizeof (a6); | ||
207 | } | ||
208 | else if (addrlen == sizeof (struct IPv4HttpAddress)) | ||
209 | { | ||
210 | t4 = addr; | ||
211 | memset (&a4, 0, sizeof (a4)); | ||
212 | a4.sin_family = AF_INET; | ||
213 | a4.sin_port = t4->port; | ||
214 | a4.sin_addr.s_addr = t4->ipv4_addr; | ||
215 | port = ntohs (t4->ipv4_addr); | ||
216 | sb = &a4; | ||
217 | sbs = sizeof (a4); | ||
218 | } | ||
219 | else | ||
220 | { | ||
221 | /* invalid address */ | ||
222 | GNUNET_break_op (0); | ||
223 | asc (asc_cls, NULL); | ||
224 | return; | ||
225 | } | ||
226 | ppc = GNUNET_malloc (sizeof (struct PrettyPrinterContext)); | ||
227 | ppc->asc = asc; | ||
228 | ppc->asc_cls = asc_cls; | ||
229 | ppc->port = port; | ||
230 | ppc->plugin = cls; | ||
231 | GNUNET_RESOLVER_hostname_get (sb, sbs, !numeric, timeout, &append_port, ppc); | ||
232 | } | ||
233 | |||
234 | |||
235 | |||
236 | /** | ||
237 | * Another peer has suggested an address for this | ||
238 | * peer and transport plugin. Check that this could be a valid | ||
239 | * address. If so, consider adding it to the list | ||
240 | * of addresses. | ||
241 | * | ||
242 | * @param cls closure | ||
243 | * @param addr pointer to the address | ||
244 | * @param addrlen length of addr | ||
245 | * @return GNUNET_OK if this is a plausible address for this peer | ||
246 | * and transport | ||
247 | */ | ||
248 | static int | ||
249 | http_plugin_address_suggested (void *cls, const void *addr, size_t addrlen) | ||
250 | { | ||
251 | struct Plugin *plugin = cls; | ||
252 | struct IPv4HttpAddress *v4; | ||
253 | struct IPv6HttpAddress *v6; | ||
254 | struct IPv4HttpAddressWrapper *w_tv4 = plugin->ipv4_addr_head; | ||
255 | struct IPv6HttpAddressWrapper *w_tv6 = plugin->ipv6_addr_head; | ||
256 | |||
257 | GNUNET_assert (cls != NULL); | ||
258 | if ((addrlen != sizeof (struct IPv4HttpAddress)) && | ||
259 | (addrlen != sizeof (struct IPv6HttpAddress))) | ||
260 | return GNUNET_SYSERR; | ||
261 | if (addrlen == sizeof (struct IPv4HttpAddress)) | ||
262 | { | ||
263 | v4 = (struct IPv4HttpAddress *) addr; | ||
264 | while (w_tv4 != NULL) | ||
265 | { | ||
266 | if (0 == | ||
267 | memcmp (&w_tv4->addr->ipv4_addr, &v4->ipv4_addr, sizeof (uint32_t))) | ||
268 | break; | ||
269 | w_tv4 = w_tv4->next; | ||
270 | } | ||
271 | if (w_tv4 != NULL) | ||
272 | return GNUNET_OK; | ||
273 | else | ||
274 | return GNUNET_SYSERR; | ||
275 | } | ||
276 | if (addrlen == sizeof (struct IPv6HttpAddress)) | ||
277 | { | ||
278 | v6 = (struct IPv6HttpAddress *) addr; | ||
279 | while (w_tv6 != NULL) | ||
280 | { | ||
281 | if (0 == | ||
282 | memcmp (&w_tv6->addr->ipv6_addr, &v6->ipv6_addr, | ||
283 | sizeof (struct in6_addr))) | ||
284 | break; | ||
285 | w_tv6 = w_tv6->next; | ||
286 | } | ||
287 | if (w_tv6 != NULL) | ||
288 | return GNUNET_OK; | ||
289 | else | ||
290 | return GNUNET_SYSERR; | ||
291 | } | ||
292 | return GNUNET_SYSERR; | ||
293 | } | ||
294 | |||
295 | /** | ||
296 | * Function called for a quick conversion of the binary address to | ||
297 | * a numeric address. Note that the caller must not free the | ||
298 | * address and that the next call to this function is allowed | ||
299 | * to override the address again. | ||
300 | * | ||
301 | * @param cls closure | ||
302 | * @param addr binary address | ||
303 | * @param addrlen length of the address | ||
304 | * @return string representing the same address | ||
305 | */ | ||
306 | const char * | ||
307 | http_plugin_address_to_string (void *cls, const void *addr, size_t addrlen) | ||
308 | { | ||
309 | const struct IPv4HttpAddress *t4; | ||
310 | const struct IPv6HttpAddress *t6; | ||
311 | struct sockaddr_in a4; | ||
312 | struct sockaddr_in6 a6; | ||
313 | char *address; | ||
314 | static char rbuf[INET6_ADDRSTRLEN + 13]; | ||
315 | uint16_t port; | ||
316 | int res; | ||
317 | |||
318 | if (addrlen == sizeof (struct IPv6HttpAddress)) | ||
319 | { | ||
320 | address = GNUNET_malloc (INET6_ADDRSTRLEN); | ||
321 | t6 = addr; | ||
322 | a6.sin6_addr = t6->ipv6_addr; | ||
323 | inet_ntop (AF_INET6, &(a6.sin6_addr), address, INET6_ADDRSTRLEN); | ||
324 | port = ntohs (t6->port); | ||
325 | } | ||
326 | else if (addrlen == sizeof (struct IPv4HttpAddress)) | ||
327 | { | ||
328 | address = GNUNET_malloc (INET_ADDRSTRLEN); | ||
329 | t4 = addr; | ||
330 | a4.sin_addr.s_addr = t4->ipv4_addr; | ||
331 | inet_ntop (AF_INET, &(a4.sin_addr), address, INET_ADDRSTRLEN); | ||
332 | port = ntohs (t4->port); | ||
333 | } | ||
334 | else | ||
335 | { | ||
336 | /* invalid address */ | ||
337 | return NULL; | ||
338 | } | ||
339 | |||
340 | GNUNET_assert (strlen (address) + 7 < (INET6_ADDRSTRLEN + 13)); | ||
341 | |||
342 | res = GNUNET_snprintf (rbuf, sizeof (rbuf), "%s:%u", address, port); | ||
343 | |||
344 | GNUNET_free (address); | ||
345 | GNUNET_assert (res != 0); | ||
346 | return rbuf; | ||
347 | } | ||
348 | |||
349 | struct Session * | ||
350 | lookup_session (struct Plugin *plugin, const struct GNUNET_PeerIdentity *target, | ||
351 | const void *addr, size_t addrlen, int force_address) | ||
352 | { | ||
353 | struct Session *s = NULL; | ||
354 | struct Session *t = NULL; | ||
355 | int e_peer; | ||
356 | int e_addr; | ||
357 | |||
358 | t = plugin->head; | ||
359 | if (t == NULL) | ||
360 | return NULL; | ||
361 | while (t->next != NULL) | ||
362 | { | ||
363 | e_peer = GNUNET_NO; | ||
364 | e_addr = GNUNET_NO; | ||
365 | if (0 == memcmp (target, &t->target, sizeof (struct GNUNET_PeerIdentity))) | ||
366 | { | ||
367 | e_peer = GNUNET_YES; | ||
368 | if (addrlen == t->addrlen) | ||
369 | { | ||
370 | if (0 == memcmp (addr, &t->addr, addrlen)) | ||
371 | e_addr = GNUNET_YES; | ||
372 | } | ||
373 | } | ||
374 | |||
375 | if ((e_peer == GNUNET_YES) && (force_address == GNUNET_NO)) | ||
376 | { | ||
377 | s = t; | ||
378 | break; | ||
379 | } | ||
380 | else if ((e_peer == GNUNET_YES) && (force_address == GNUNET_YES) && | ||
381 | (e_addr == GNUNET_YES)) | ||
382 | { | ||
383 | s = t; | ||
384 | break; | ||
385 | } | ||
386 | else if ((e_peer == GNUNET_YES) && (force_address == GNUNET_SYSERR)) | ||
387 | { | ||
388 | s = t; | ||
389 | break; | ||
390 | } | ||
391 | t = t->next; | ||
392 | } | ||
393 | |||
394 | return s; | ||
395 | } | ||
396 | |||
397 | void | ||
398 | delete_session (struct Session *s) | ||
399 | { | ||
400 | GNUNET_free (s->addr); | ||
401 | GNUNET_free (s); | ||
402 | } | ||
403 | |||
404 | struct Session * | ||
405 | create_session (struct Plugin *plugin, const struct GNUNET_PeerIdentity *target, | ||
406 | const void *addr, size_t addrlen, | ||
407 | GNUNET_TRANSPORT_TransmitContinuation cont, void *cont_cls) | ||
408 | { | ||
409 | struct Session *s = NULL; | ||
410 | |||
411 | s = GNUNET_malloc (sizeof (struct Session)); | ||
412 | memcpy (&s->target, target, sizeof (struct GNUNET_PeerIdentity)); | ||
413 | s->plugin = plugin; | ||
414 | s->addr = GNUNET_malloc (addrlen); | ||
415 | memcpy (s->addr, addr, addrlen); | ||
416 | s->addrlen = addrlen; | ||
417 | s->transmit_cont = cont; | ||
418 | s->transmit_cont_cls = cont_cls; | ||
419 | s->next = NULL; | ||
420 | |||
421 | return s; | ||
422 | } | ||
423 | |||
424 | /** | ||
425 | * Function that can be used by the transport service to transmit | ||
426 | * a message using the plugin. Note that in the case of a | ||
427 | * peer disconnecting, the continuation MUST be called | ||
428 | * prior to the disconnect notification itself. This function | ||
429 | * will be called with this peer's HELLO message to initiate | ||
430 | * a fresh connection to another peer. | ||
431 | * | ||
432 | * @param cls closure | ||
433 | * @param target who should receive this message | ||
434 | * @param msgbuf the message to transmit | ||
435 | * @param msgbuf_size number of bytes in 'msgbuf' | ||
436 | * @param priority how important is the message (most plugins will | ||
437 | * ignore message priority and just FIFO) | ||
438 | * @param to how long to wait at most for the transmission (does not | ||
439 | * require plugins to discard the message after the timeout, | ||
440 | * just advisory for the desired delay; most plugins will ignore | ||
441 | * this as well) | ||
442 | * @param session which session must be used (or NULL for "any") | ||
443 | * @param addr the address to use (can be NULL if the plugin | ||
444 | * is "on its own" (i.e. re-use existing TCP connection)) | ||
445 | * @param addrlen length of the address in bytes | ||
446 | * @param force_address GNUNET_YES if the plugin MUST use the given address, | ||
447 | * GNUNET_NO means the plugin may use any other address and | ||
448 | * GNUNET_SYSERR means that only reliable existing | ||
449 | * bi-directional connections should be used (regardless | ||
450 | * of address) | ||
451 | * @param cont continuation to call once the message has | ||
452 | * been transmitted (or if the transport is ready | ||
453 | * for the next transmission call; or if the | ||
454 | * peer disconnected...); can be NULL | ||
455 | * @param cont_cls closure for cont | ||
456 | * @return number of bytes used (on the physical network, with overheads); | ||
457 | * -1 on hard errors (i.e. address invalid); 0 is a legal value | ||
458 | * and does NOT mean that the message was not transmitted (DV) | ||
459 | */ | ||
460 | static ssize_t | ||
461 | http_plugin_send (void *cls, const struct GNUNET_PeerIdentity *target, | ||
462 | const char *msgbuf, size_t msgbuf_size, unsigned int priority, | ||
463 | struct GNUNET_TIME_Relative to, struct Session *session, | ||
464 | const void *addr, size_t addrlen, int force_address, | ||
465 | GNUNET_TRANSPORT_TransmitContinuation cont, void *cont_cls) | ||
466 | { | ||
467 | struct Plugin *plugin = cls; | ||
468 | |||
469 | GNUNET_assert (plugin != NULL); | ||
470 | |||
471 | int res = GNUNET_SYSERR; | ||
472 | |||
473 | #if DEBUG_HTTP | ||
474 | GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name, | ||
475 | "Sending %u bytes to peer `%s'\n", msgbuf_size, | ||
476 | GNUNET_i2s (target)); | ||
477 | #endif | ||
478 | |||
479 | struct Session *s = NULL; | ||
480 | |||
481 | /* look for existing connection */ | ||
482 | s = lookup_session (plugin, target, addr, addrlen, force_address); | ||
483 | |||
484 | /* create new connection */ | ||
485 | if (s == NULL) | ||
486 | { | ||
487 | #if DEBUG_HTTP | ||
488 | GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name, | ||
489 | "Initiiating new connection to peer `%s'\n", | ||
490 | GNUNET_i2s (target)); | ||
491 | #endif | ||
492 | s = create_session (plugin, target, addr, addrlen, cont, cont_cls); | ||
493 | GNUNET_CONTAINER_DLL_insert (plugin->head, plugin->tail, s); | ||
494 | // initiate new connection | ||
495 | client_connect (s); | ||
496 | } | ||
497 | else if (s->inbound == GNUNET_NO) | ||
498 | res = client_send (s, msgbuf, msgbuf_size); | ||
499 | else if (s->inbound == GNUNET_YES) | ||
500 | res = server_send (s, msgbuf, msgbuf_size); | ||
501 | |||
502 | return res; | ||
503 | } | ||
504 | |||
505 | |||
506 | /** | ||
507 | * Function that can be used to force the plugin to disconnect | ||
508 | * from the given peer and cancel all previous transmissions | ||
509 | * (and their continuationc). | ||
510 | * | ||
511 | * @param cls closure | ||
512 | * @param target peer from which to disconnect | ||
513 | */ | ||
514 | static void | ||
515 | http_plugin_disconnect (void *cls, const struct GNUNET_PeerIdentity *target) | ||
516 | { | ||
517 | struct Plugin *plugin = cls; | ||
518 | struct Session *next = NULL; | ||
519 | struct Session *s = plugin->head; | ||
520 | |||
521 | while (s != NULL) | ||
522 | { | ||
523 | next = s->next; | ||
524 | if (0 == memcmp (target, &s->target, sizeof (struct GNUNET_PeerIdentity))) | ||
525 | { | ||
526 | if (s->inbound == GNUNET_NO) | ||
527 | GNUNET_assert (GNUNET_OK == client_disconnect (s)); | ||
528 | else | ||
529 | GNUNET_assert (GNUNET_OK == server_disconnect (s)); | ||
530 | GNUNET_CONTAINER_DLL_remove (plugin->head, plugin->tail, s); | ||
531 | delete_session (s); | ||
532 | } | ||
533 | s = next; | ||
534 | } | ||
535 | } | ||
536 | |||
537 | /** | ||
538 | * Function called by the NAT subsystem suggesting another peer wants | ||
539 | * to connect to us via connection reversal. Try to connect back to the | ||
540 | * given IP. | ||
541 | * | ||
542 | * @param cls closure | ||
543 | * @param addr address to try | ||
544 | * @param addrlen number of bytes in addr | ||
545 | */ | ||
546 | static void | ||
547 | nat_connection_reversal (void *cls, const struct sockaddr *addr, | ||
548 | socklen_t addrlen) | ||
549 | { | ||
550 | |||
551 | } | ||
552 | |||
553 | static void | ||
554 | nat_add_address (void *cls, int add_remove, const struct sockaddr *addr, | ||
555 | socklen_t addrlen) | ||
556 | { | ||
557 | struct Plugin *plugin = cls; | ||
558 | struct IPv4HttpAddress *t4 = NULL; | ||
559 | struct IPv4HttpAddressWrapper *w_t4 = NULL; | ||
560 | struct IPv6HttpAddress *t6 = NULL; | ||
561 | struct IPv6HttpAddressWrapper *w_t6 = NULL; | ||
562 | int af; | ||
563 | |||
564 | af = addr->sa_family; | ||
565 | switch (af) | ||
566 | { | ||
567 | case AF_INET: | ||
568 | w_t4 = plugin->ipv4_addr_head; | ||
569 | while (w_t4 != NULL) | ||
570 | { | ||
571 | int res = memcmp (&w_t4->addr->ipv4_addr, | ||
572 | &((struct sockaddr_in *) addr)->sin_addr, | ||
573 | sizeof (struct in_addr)); | ||
574 | |||
575 | if (0 == res) | ||
576 | break; | ||
577 | w_t4 = w_t4->next; | ||
578 | } | ||
579 | if (w_t4 == NULL) | ||
580 | { | ||
581 | w_t4 = GNUNET_malloc (sizeof (struct IPv4HttpAddressWrapper)); | ||
582 | t4 = GNUNET_malloc (sizeof (struct IPv4HttpAddress)); | ||
583 | memcpy (&t4->ipv4_addr, &((struct sockaddr_in *) addr)->sin_addr, | ||
584 | sizeof (struct in_addr)); | ||
585 | t4->port = htons (plugin->port); | ||
586 | |||
587 | w_t4->addr = t4; | ||
588 | |||
589 | GNUNET_CONTAINER_DLL_insert (plugin->ipv4_addr_head, | ||
590 | plugin->ipv4_addr_tail, w_t4); | ||
591 | } | ||
592 | plugin->env->notify_address (plugin->env->cls, add_remove, w_t4->addr, | ||
593 | sizeof (struct IPv4HttpAddress)); | ||
594 | |||
595 | break; | ||
596 | case AF_INET6: | ||
597 | w_t6 = plugin->ipv6_addr_head; | ||
598 | while (w_t6) | ||
599 | { | ||
600 | int res = memcmp (&w_t6->addr->ipv6_addr, | ||
601 | &((struct sockaddr_in6 *) addr)->sin6_addr, | ||
602 | sizeof (struct in6_addr)); | ||
603 | |||
604 | if (0 == res) | ||
605 | break; | ||
606 | w_t6 = w_t6->next; | ||
607 | } | ||
608 | if (w_t6 == NULL) | ||
609 | { | ||
610 | w_t6 = GNUNET_malloc (sizeof (struct IPv6HttpAddressWrapper)); | ||
611 | t6 = GNUNET_malloc (sizeof (struct IPv6HttpAddress)); | ||
612 | |||
613 | memcpy (&t6->ipv6_addr, &((struct sockaddr_in6 *) addr)->sin6_addr, | ||
614 | sizeof (struct in6_addr)); | ||
615 | t6->port = htons (plugin->port); | ||
616 | |||
617 | w_t6->addr = t6; | ||
618 | |||
619 | GNUNET_CONTAINER_DLL_insert (plugin->ipv6_addr_head, | ||
620 | plugin->ipv6_addr_tail, w_t6); | ||
621 | } | ||
622 | plugin->env->notify_address (plugin->env->cls, add_remove, w_t6->addr, | ||
623 | sizeof (struct IPv6HttpAddress)); | ||
624 | break; | ||
625 | default: | ||
626 | return; | ||
627 | } | ||
628 | |||
629 | } | ||
630 | |||
631 | static void | ||
632 | nat_remove_address (void *cls, int add_remove, const struct sockaddr *addr, | ||
633 | socklen_t addrlen) | ||
634 | { | ||
635 | struct Plugin *plugin = cls; | ||
636 | struct IPv4HttpAddressWrapper *w_t4 = NULL; | ||
637 | struct IPv6HttpAddressWrapper *w_t6 = NULL; | ||
638 | int af; | ||
639 | |||
640 | af = addr->sa_family; | ||
641 | switch (af) | ||
642 | { | ||
643 | case AF_INET: | ||
644 | w_t4 = plugin->ipv4_addr_head; | ||
645 | while (w_t4 != NULL) | ||
646 | { | ||
647 | int res = memcmp (&w_t4->addr->ipv4_addr, | ||
648 | &((struct sockaddr_in *) addr)->sin_addr, | ||
649 | sizeof (struct in_addr)); | ||
650 | |||
651 | if (0 == res) | ||
652 | break; | ||
653 | w_t4 = w_t4->next; | ||
654 | } | ||
655 | if (w_t4 == NULL) | ||
656 | return; | ||
657 | plugin->env->notify_address (plugin->env->cls, add_remove, w_t4->addr, | ||
658 | sizeof (struct IPv4HttpAddress)); | ||
659 | |||
660 | GNUNET_CONTAINER_DLL_remove (plugin->ipv4_addr_head, plugin->ipv4_addr_tail, | ||
661 | w_t4); | ||
662 | GNUNET_free (w_t4->addr); | ||
663 | GNUNET_free (w_t4); | ||
664 | break; | ||
665 | case AF_INET6: | ||
666 | w_t6 = plugin->ipv6_addr_head; | ||
667 | while (w_t6 != NULL) | ||
668 | { | ||
669 | int res = memcmp (&w_t6->addr->ipv6_addr, | ||
670 | &((struct sockaddr_in6 *) addr)->sin6_addr, | ||
671 | sizeof (struct in6_addr)); | ||
672 | |||
673 | if (0 == res) | ||
674 | break; | ||
675 | w_t6 = w_t6->next; | ||
676 | } | ||
677 | if (w_t6 == NULL) | ||
678 | return; | ||
679 | plugin->env->notify_address (plugin->env->cls, add_remove, w_t6->addr, | ||
680 | sizeof (struct IPv6HttpAddress)); | ||
681 | |||
682 | GNUNET_CONTAINER_DLL_remove (plugin->ipv6_addr_head, plugin->ipv6_addr_tail, | ||
683 | w_t6); | ||
684 | GNUNET_free (w_t6->addr); | ||
685 | GNUNET_free (w_t6); | ||
686 | break; | ||
687 | default: | ||
688 | return; | ||
689 | } | ||
690 | |||
691 | } | ||
692 | |||
693 | /** | ||
694 | * Our external IP address/port mapping has changed. | ||
695 | * | ||
696 | * @param cls closure, the 'struct LocalAddrList' | ||
697 | * @param add_remove GNUNET_YES to mean the new public IP address, GNUNET_NO to mean | ||
698 | * the previous (now invalid) one | ||
699 | * @param addr either the previous or the new public IP address | ||
700 | * @param addrlen actual lenght of the address | ||
701 | */ | ||
702 | static void | ||
703 | nat_port_map_callback (void *cls, int add_remove, const struct sockaddr *addr, | ||
704 | socklen_t addrlen) | ||
705 | { | ||
706 | GNUNET_assert (cls != NULL); | ||
707 | struct Plugin *plugin = cls; | ||
708 | |||
709 | #if DEBUG_HTTP | ||
710 | GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, | ||
711 | "NPMC called %s to address `%s'\n", | ||
712 | (add_remove == GNUNET_NO) ? "remove" : "add", | ||
713 | GNUNET_a2s (addr, addrlen)); | ||
714 | #endif | ||
715 | /* convert 'addr' to our internal format */ | ||
716 | switch (add_remove) | ||
717 | { | ||
718 | case GNUNET_YES: | ||
719 | nat_add_address (cls, add_remove, addr, addrlen); | ||
720 | break; | ||
721 | case GNUNET_NO: | ||
722 | nat_remove_address (cls, add_remove, addr, addrlen); | ||
723 | break; | ||
724 | } | ||
725 | } | ||
726 | |||
727 | |||
728 | static void | ||
729 | start_report_addresses (struct Plugin *plugin) | ||
730 | { | ||
731 | int res = GNUNET_OK; | ||
732 | struct sockaddr **addrs; | ||
733 | socklen_t *addrlens; | ||
734 | |||
735 | res = | ||
736 | GNUNET_SERVICE_get_server_addresses (plugin->name, plugin->env->cfg, | ||
737 | &addrs, &addrlens); | ||
738 | |||
739 | if (res != GNUNET_SYSERR) | ||
740 | { | ||
741 | plugin->nat = | ||
742 | GNUNET_NAT_register (plugin->env->cfg, GNUNET_YES, plugin->port, | ||
743 | (unsigned int) res, | ||
744 | (const struct sockaddr **) addrs, addrlens, | ||
745 | &nat_port_map_callback, &nat_connection_reversal, | ||
746 | plugin); | ||
747 | while (res > 0) | ||
748 | { | ||
749 | res--; | ||
750 | GNUNET_assert (addrs[res] != NULL); | ||
751 | GNUNET_free (addrs[res]); | ||
752 | } | ||
753 | GNUNET_free_non_null (addrs); | ||
754 | GNUNET_free_non_null (addrlens); | ||
755 | } | ||
756 | else | ||
757 | { | ||
758 | plugin->nat = | ||
759 | GNUNET_NAT_register (plugin->env->cfg, GNUNET_YES, 0, 0, NULL, NULL, | ||
760 | NULL, &nat_connection_reversal, plugin); | ||
761 | } | ||
762 | } | ||
763 | |||
764 | static void | ||
765 | stop_report_addresses (struct Plugin *plugin) | ||
766 | { | ||
767 | /* Stop NAT handle */ | ||
768 | GNUNET_NAT_unregister (plugin->nat); | ||
769 | |||
770 | /* Clean up addresses */ | ||
771 | struct IPv4HttpAddressWrapper *w_t4; | ||
772 | struct IPv6HttpAddressWrapper *w_t6; | ||
773 | |||
774 | while (plugin->ipv4_addr_head != NULL) | ||
775 | { | ||
776 | w_t4 = plugin->ipv4_addr_head; | ||
777 | GNUNET_CONTAINER_DLL_remove (plugin->ipv4_addr_head, plugin->ipv4_addr_tail, | ||
778 | w_t4); | ||
779 | GNUNET_free (w_t4->addr); | ||
780 | GNUNET_free (w_t4); | ||
781 | } | ||
782 | |||
783 | while (plugin->ipv6_addr_head != NULL) | ||
784 | { | ||
785 | w_t6 = plugin->ipv6_addr_head; | ||
786 | GNUNET_CONTAINER_DLL_remove (plugin->ipv6_addr_head, plugin->ipv6_addr_tail, | ||
787 | w_t6); | ||
788 | GNUNET_free (w_t6->addr); | ||
789 | GNUNET_free (w_t6); | ||
790 | } | ||
791 | } | ||
792 | |||
793 | static int | ||
794 | configure_plugin (struct Plugin *plugin) | ||
795 | { | ||
796 | int res = GNUNET_OK; | ||
797 | |||
798 | /* Use IPv4? */ | ||
799 | if (GNUNET_CONFIGURATION_have_value | ||
800 | (plugin->env->cfg, plugin->name, "USE_IPv4")) | ||
801 | { | ||
802 | plugin->ipv4 = | ||
803 | GNUNET_CONFIGURATION_get_value_yesno (plugin->env->cfg, plugin->name, | ||
804 | "USE_IPv4"); | ||
805 | } | ||
806 | else | ||
807 | plugin->ipv4 = GNUNET_YES; | ||
808 | |||
809 | /* Use IPv6? */ | ||
810 | if (GNUNET_CONFIGURATION_have_value | ||
811 | (plugin->env->cfg, plugin->name, "USE_IPv6")) | ||
812 | { | ||
813 | plugin->ipv6 = | ||
814 | GNUNET_CONFIGURATION_get_value_yesno (plugin->env->cfg, plugin->name, | ||
815 | "USE_IPv6"); | ||
816 | } | ||
817 | else | ||
818 | plugin->ipv6 = GNUNET_YES; | ||
819 | |||
820 | if ((plugin->ipv4 == GNUNET_NO) && (plugin->ipv6 == GNUNET_NO)) | ||
821 | { | ||
822 | GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name, | ||
823 | _ | ||
824 | ("Neither IPv4 nor IPv6 are enabled! Fix in configuration\n"), | ||
825 | plugin->name); | ||
826 | res = GNUNET_SYSERR; | ||
827 | } | ||
828 | /* Reading port number from config file */ | ||
829 | unsigned long long port; | ||
830 | |||
831 | if ((GNUNET_OK != | ||
832 | GNUNET_CONFIGURATION_get_value_number (plugin->env->cfg, plugin->name, | ||
833 | "PORT", &port)) || (port > 65535)) | ||
834 | { | ||
835 | GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name, | ||
836 | _("Port is required! Fix in configuration\n"), | ||
837 | plugin->name); | ||
838 | res = GNUNET_SYSERR; | ||
839 | } | ||
840 | plugin->port = port; | ||
841 | |||
842 | return res; | ||
843 | } | ||
844 | |||
845 | /** | ||
846 | * Entry point for the plugin. | ||
847 | */ | ||
848 | void * | ||
849 | LIBGNUNET_PLUGIN_TRANSPORT_INIT (void *cls) | ||
850 | { | ||
851 | struct GNUNET_TRANSPORT_PluginEnvironment *env = cls; | ||
852 | struct GNUNET_TRANSPORT_PluginFunctions *api; | ||
853 | struct Plugin *plugin; | ||
854 | int res; | ||
855 | |||
856 | plugin = GNUNET_malloc (sizeof (struct Plugin)); | ||
857 | plugin->env = env; | ||
858 | api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions)); | ||
859 | api->cls = plugin; | ||
860 | api->send = &http_plugin_send; | ||
861 | api->disconnect = &http_plugin_disconnect; | ||
862 | api->address_pretty_printer = &http_plugin_address_pretty_printer; | ||
863 | api->check_address = &http_plugin_address_suggested; | ||
864 | api->address_to_string = &http_plugin_address_to_string; | ||
865 | |||
866 | #if BUILD_HTTPS | ||
867 | plugin->name = "transport-https"; | ||
868 | plugin->protocol = "https"; | ||
869 | #else | ||
870 | plugin->name = "transport-http"; | ||
871 | plugin->protocol = "http"; | ||
872 | #endif | ||
873 | /* Configure plugin from configuration */ | ||
874 | |||
875 | res = configure_plugin (plugin); | ||
876 | if (res == GNUNET_SYSERR) | ||
877 | { | ||
878 | GNUNET_free (plugin); | ||
879 | GNUNET_free (api); | ||
880 | return NULL; | ||
881 | } | ||
882 | |||
883 | /* Start client */ | ||
884 | res = client_start (plugin); | ||
885 | if (res == GNUNET_SYSERR) | ||
886 | { | ||
887 | GNUNET_free (plugin); | ||
888 | GNUNET_free (api); | ||
889 | return NULL; | ||
890 | } | ||
891 | |||
892 | /* Start server */ | ||
893 | res = server_start (plugin); | ||
894 | if (res == GNUNET_SYSERR) | ||
895 | { | ||
896 | server_stop (plugin); | ||
897 | client_stop (plugin); | ||
898 | |||
899 | GNUNET_free (plugin); | ||
900 | GNUNET_free (api); | ||
901 | return NULL; | ||
902 | } | ||
903 | |||
904 | /* Report addresses to transport service */ | ||
905 | start_report_addresses (plugin); | ||
906 | |||
907 | #if DEBUG_HTTP | ||
908 | GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, | ||
909 | "Plugin `%s' loaded\n", plugin->name); | ||
910 | #endif | ||
911 | |||
912 | return api; | ||
913 | } | ||
914 | |||
915 | |||
916 | /** | ||
917 | * Exit point from the plugin. | ||
918 | */ | ||
919 | void * | ||
920 | LIBGNUNET_PLUGIN_TRANSPORT_DONE (void *cls) | ||
921 | { | ||
922 | struct GNUNET_TRANSPORT_PluginFunctions *api = cls; | ||
923 | struct Plugin *plugin = api->cls; | ||
924 | struct Session *s = NULL; | ||
925 | |||
926 | /* Stop reporting addresses to transport service */ | ||
927 | stop_report_addresses (plugin); | ||
928 | |||
929 | /* cleaning up sessions */ | ||
930 | s = plugin->head; | ||
931 | while (s != NULL) | ||
932 | { | ||
933 | struct Session *t = s->next; | ||
934 | |||
935 | if (s->inbound == GNUNET_NO) | ||
936 | GNUNET_assert (GNUNET_OK == client_disconnect (s)); | ||
937 | else | ||
938 | GNUNET_assert (GNUNET_OK == server_disconnect (s)); | ||
939 | |||
940 | GNUNET_CONTAINER_DLL_remove (plugin->head, plugin->tail, s); | ||
941 | delete_session (s); | ||
942 | s = t; | ||
943 | } | ||
944 | |||
945 | /* Stop server */ | ||
946 | server_stop (plugin); | ||
947 | |||
948 | /* Stop client */ | ||
949 | client_stop (plugin); | ||
950 | |||
951 | |||
952 | #if DEBUG_HTTP | ||
953 | GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, | ||
954 | "Plugin `%s' unloaded\n", plugin->name); | ||
955 | #endif | ||
956 | |||
957 | GNUNET_free (plugin); | ||
958 | GNUNET_free (api); | ||
959 | |||
960 | return NULL; | ||
961 | } | ||
962 | |||
963 | /* end of plugin_transport_http.c */ | ||
diff --git a/src/transport/plugin_transport_http_server.c b/src/transport/plugin_transport_http_server.c new file mode 100644 index 000000000..96d3e27ae --- /dev/null +++ b/src/transport/plugin_transport_http_server.c | |||
@@ -0,0 +1,374 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Christian Grothoff (and other contributing authors) | ||
4 | |||
5 | GNUnet is free software; you can redistribute it and/or modify | ||
6 | it under the terms of the GNU General Public License as published | ||
7 | by the Free Software Foundation; either version 3, or (at your | ||
8 | 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 | General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with GNUnet; see the file COPYING. If not, write to the | ||
17 | Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
18 | Boston, MA 02111-1307, USA. | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/plugin_transport_http.c | ||
23 | * @brief http transport service plugin | ||
24 | * @author Matthias Wachs | ||
25 | */ | ||
26 | |||
27 | #include "plugin_transport_http.h" | ||
28 | |||
29 | static void | ||
30 | server_log (void *arg, const char *fmt, va_list ap) | ||
31 | { | ||
32 | char text[1024]; | ||
33 | |||
34 | vsnprintf (text, sizeof (text), fmt, ap); | ||
35 | va_end (ap); | ||
36 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "server: %s\n", text); | ||
37 | } | ||
38 | |||
39 | /** | ||
40 | * Check if incoming connection is accepted. | ||
41 | * NOTE: Here every connection is accepted | ||
42 | * @param cls plugin as closure | ||
43 | * @param addr address of incoming connection | ||
44 | * @param addr_len address length of incoming connection | ||
45 | * @return MHD_YES if connection is accepted, MHD_NO if connection is rejected | ||
46 | * | ||
47 | */ | ||
48 | static int | ||
49 | server_accept_cb (void *cls, const struct sockaddr *addr, socklen_t addr_len) | ||
50 | { | ||
51 | return 0; | ||
52 | } | ||
53 | |||
54 | |||
55 | /** | ||
56 | * Callback called by MHD when it needs data to send | ||
57 | * @param cls current session | ||
58 | * @param pos position in buffer | ||
59 | * @param buf the buffer to write data to | ||
60 | * @param max max number of bytes available in buffer | ||
61 | * @return bytes written to buffer | ||
62 | */ | ||
63 | #if 0 | ||
64 | static ssize_t | ||
65 | server_send_cb (void *cls, uint64_t pos, char *buf, size_t max) | ||
66 | { | ||
67 | |||
68 | return 0; | ||
69 | } | ||
70 | #endif | ||
71 | |||
72 | |||
73 | #if BUILD_HTTPS | ||
74 | static char * | ||
75 | server_load_file (const char *file) | ||
76 | { | ||
77 | struct GNUNET_DISK_FileHandle *gn_file; | ||
78 | struct stat fstat; | ||
79 | char *text = NULL; | ||
80 | |||
81 | if (0 != STAT (file, &fstat)) | ||
82 | return NULL; | ||
83 | text = GNUNET_malloc (fstat.st_size + 1); | ||
84 | gn_file = | ||
85 | GNUNET_DISK_file_open (file, GNUNET_DISK_OPEN_READ, | ||
86 | GNUNET_DISK_PERM_USER_READ); | ||
87 | if (gn_file == NULL) | ||
88 | { | ||
89 | GNUNET_free (text); | ||
90 | return NULL; | ||
91 | } | ||
92 | if (GNUNET_SYSERR == GNUNET_DISK_file_read (gn_file, text, fstat.st_size)) | ||
93 | { | ||
94 | GNUNET_free (text); | ||
95 | GNUNET_DISK_file_close (gn_file); | ||
96 | return NULL; | ||
97 | } | ||
98 | text[fstat.st_size] = '\0'; | ||
99 | GNUNET_DISK_file_close (gn_file); | ||
100 | return text; | ||
101 | } | ||
102 | #endif | ||
103 | |||
104 | |||
105 | #if BUILD_HTTPS | ||
106 | |||
107 | static int | ||
108 | server_load_certificate (struct Plugin *plugin) | ||
109 | { | ||
110 | int res = GNUNET_OK; | ||
111 | |||
112 | char *key_file; | ||
113 | char *cert_file; | ||
114 | |||
115 | /* Get crypto init string from config | ||
116 | * If not present just use default values */ | ||
117 | GNUNET_CONFIGURATION_get_value_string (plugin->env->cfg, plugin->name, | ||
118 | "CRYPTO_INIT", &plugin->crypto_init); | ||
119 | |||
120 | if (GNUNET_OK != | ||
121 | GNUNET_CONFIGURATION_get_value_filename (plugin->env->cfg, plugin->name, | ||
122 | "KEY_FILE", &key_file)) | ||
123 | { | ||
124 | key_file = "https_key.key"; | ||
125 | } | ||
126 | |||
127 | if (GNUNET_OK != | ||
128 | GNUNET_CONFIGURATION_get_value_filename (plugin->env->cfg, plugin->name, | ||
129 | "CERT_FILE", &cert_file)) | ||
130 | { | ||
131 | cert_file = "https_cert.crt"; | ||
132 | } | ||
133 | |||
134 | /* read key & certificates from file */ | ||
135 | #if VERBOSE_SERVER | ||
136 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
137 | "Loading TLS certificate from key-file `%s' cert-file`%s'\n", | ||
138 | key_file, cert_file); | ||
139 | #endif | ||
140 | |||
141 | plugin->key = server_load_file (key_file); | ||
142 | plugin->cert = server_load_file (cert_file); | ||
143 | |||
144 | if ((plugin->key == NULL) || (plugin->cert == NULL)) | ||
145 | { | ||
146 | struct GNUNET_OS_Process *cert_creation; | ||
147 | |||
148 | GNUNET_free_non_null (plugin->key); | ||
149 | plugin->key = NULL; | ||
150 | GNUNET_free_non_null (plugin->cert); | ||
151 | plugin->cert = NULL; | ||
152 | |||
153 | #if VERBOSE_SERVER | ||
154 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
155 | "No usable TLS certificate found, creating certificate\n"); | ||
156 | #endif | ||
157 | errno = 0; | ||
158 | cert_creation = | ||
159 | GNUNET_OS_start_process (NULL, NULL, | ||
160 | "gnunet-transport-certificate-creation", | ||
161 | "gnunet-transport-certificate-creation", | ||
162 | key_file, cert_file, NULL); | ||
163 | if (cert_creation == NULL) | ||
164 | { | ||
165 | GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name, | ||
166 | _ | ||
167 | ("Could not create a new TLS certificate, program `gnunet-transport-certificate-creation' could not be started!\n")); | ||
168 | GNUNET_free (key_file); | ||
169 | GNUNET_free (cert_file); | ||
170 | |||
171 | GNUNET_free_non_null (plugin->key); | ||
172 | GNUNET_free_non_null (plugin->cert); | ||
173 | GNUNET_free_non_null (plugin->crypto_init); | ||
174 | |||
175 | return GNUNET_SYSERR; | ||
176 | } | ||
177 | GNUNET_assert (GNUNET_OK == GNUNET_OS_process_wait (cert_creation)); | ||
178 | GNUNET_OS_process_close (cert_creation); | ||
179 | |||
180 | plugin->key = server_load_file (key_file); | ||
181 | plugin->cert = server_load_file (cert_file); | ||
182 | } | ||
183 | |||
184 | if ((plugin->key == NULL) || (plugin->cert == NULL)) | ||
185 | { | ||
186 | GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name, | ||
187 | _ | ||
188 | ("No usable TLS certificate found and creating one failed!\n"), | ||
189 | "transport-https"); | ||
190 | GNUNET_free (key_file); | ||
191 | GNUNET_free (cert_file); | ||
192 | |||
193 | GNUNET_free_non_null (plugin->key); | ||
194 | GNUNET_free_non_null (plugin->cert); | ||
195 | GNUNET_free_non_null (plugin->crypto_init); | ||
196 | |||
197 | return GNUNET_SYSERR; | ||
198 | } | ||
199 | GNUNET_free (key_file); | ||
200 | GNUNET_free (cert_file); | ||
201 | #if DEBUG_HTTP | ||
202 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "TLS certificate loaded\n"); | ||
203 | #endif | ||
204 | |||
205 | return res; | ||
206 | } | ||
207 | #endif | ||
208 | |||
209 | |||
210 | /** | ||
211 | * Process GET or PUT request received via MHD. For | ||
212 | * GET, queue response that will send back our pending | ||
213 | * messages. For PUT, process incoming data and send | ||
214 | * to GNUnet core. In either case, check if a session | ||
215 | * already exists and create a new one if not. | ||
216 | */ | ||
217 | static int | ||
218 | server_access_cb (void *cls, struct MHD_Connection *mhd_connection, | ||
219 | const char *url, const char *method, const char *version, | ||
220 | const char *upload_data, size_t * upload_data_size, | ||
221 | void **httpSessionCache) | ||
222 | { | ||
223 | return 0; | ||
224 | } | ||
225 | |||
226 | static void | ||
227 | server_disconnect_cb (void *cls, struct MHD_Connection *connection, | ||
228 | void **httpSessionCache) | ||
229 | { | ||
230 | } | ||
231 | |||
232 | int | ||
233 | server_disconnect (struct Session *s) | ||
234 | { | ||
235 | return GNUNET_OK; | ||
236 | } | ||
237 | |||
238 | int | ||
239 | server_send (struct Session *s, const char *msgbuf, size_t msgbuf_size) | ||
240 | { | ||
241 | return GNUNET_OK; | ||
242 | } | ||
243 | |||
244 | int | ||
245 | server_start (struct Plugin *plugin) | ||
246 | { | ||
247 | int res = GNUNET_OK; | ||
248 | |||
249 | #if BUILD_HTTPS | ||
250 | res = server_load_certificate (plugin); | ||
251 | if (res == GNUNET_SYSERR) | ||
252 | { | ||
253 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "TABORT\n"); | ||
254 | return res; | ||
255 | } | ||
256 | #endif | ||
257 | |||
258 | plugin->server_v4 = NULL; | ||
259 | if (plugin->ipv4 == GNUNET_YES) | ||
260 | { | ||
261 | plugin->server_v4 = MHD_start_daemon ( | ||
262 | #if VERBOSE_SERVER | ||
263 | MHD_USE_DEBUG | | ||
264 | #endif | ||
265 | #if BUILD_HTTPS | ||
266 | MHD_USE_SSL | | ||
267 | #endif | ||
268 | MHD_NO_FLAG, plugin->port, | ||
269 | &server_accept_cb, plugin, | ||
270 | &server_access_cb, plugin, | ||
271 | //MHD_OPTION_SOCK_ADDR, | ||
272 | //(struct sockaddr_in *) | ||
273 | //plugin->bind4_address, | ||
274 | MHD_OPTION_CONNECTION_LIMIT, | ||
275 | (unsigned int) | ||
276 | plugin->max_connections, | ||
277 | #if BUILD_HTTPS | ||
278 | MHD_OPTION_HTTPS_PRIORITIES, | ||
279 | plugin->crypto_init, | ||
280 | MHD_OPTION_HTTPS_MEM_KEY, | ||
281 | plugin->key, | ||
282 | MHD_OPTION_HTTPS_MEM_CERT, | ||
283 | plugin->cert, | ||
284 | #endif | ||
285 | MHD_OPTION_CONNECTION_TIMEOUT, | ||
286 | (unsigned int) 3, | ||
287 | MHD_OPTION_CONNECTION_MEMORY_LIMIT, | ||
288 | (size_t) (2 * | ||
289 | GNUNET_SERVER_MAX_MESSAGE_SIZE), | ||
290 | MHD_OPTION_NOTIFY_COMPLETED, | ||
291 | &server_disconnect_cb, plugin, | ||
292 | MHD_OPTION_EXTERNAL_LOGGER, | ||
293 | server_log, NULL, MHD_OPTION_END); | ||
294 | if (plugin->server_v4 == NULL) | ||
295 | res = GNUNET_SYSERR; | ||
296 | } | ||
297 | plugin->server_v6 = NULL; | ||
298 | if (plugin->ipv6 == GNUNET_YES) | ||
299 | { | ||
300 | plugin->server_v6 = MHD_start_daemon ( | ||
301 | #if VERBOSE_SERVER | ||
302 | MHD_USE_DEBUG | | ||
303 | #endif | ||
304 | #if BUILD_HTTPS | ||
305 | MHD_USE_SSL | | ||
306 | #endif | ||
307 | MHD_USE_IPv6, plugin->port, | ||
308 | &server_accept_cb, plugin, | ||
309 | &server_access_cb, plugin, | ||
310 | //MHD_OPTION_SOCK_ADDR, | ||
311 | //tmp, | ||
312 | MHD_OPTION_CONNECTION_LIMIT, | ||
313 | (unsigned int) | ||
314 | plugin->max_connections, | ||
315 | #if BUILD_HTTPS | ||
316 | MHD_OPTION_HTTPS_PRIORITIES, | ||
317 | plugin->crypto_init, | ||
318 | MHD_OPTION_HTTPS_MEM_KEY, | ||
319 | plugin->key, | ||
320 | MHD_OPTION_HTTPS_MEM_CERT, | ||
321 | plugin->cert, | ||
322 | #endif | ||
323 | MHD_OPTION_CONNECTION_TIMEOUT, | ||
324 | (unsigned int) 3, | ||
325 | MHD_OPTION_CONNECTION_MEMORY_LIMIT, | ||
326 | (size_t) (2 * | ||
327 | GNUNET_SERVER_MAX_MESSAGE_SIZE), | ||
328 | MHD_OPTION_NOTIFY_COMPLETED, | ||
329 | &server_disconnect_cb, plugin, | ||
330 | MHD_OPTION_EXTERNAL_LOGGER, | ||
331 | server_log, NULL, MHD_OPTION_END); | ||
332 | |||
333 | if (plugin->server_v6 == NULL) | ||
334 | res = GNUNET_SYSERR; | ||
335 | } | ||
336 | |||
337 | #if DEBUG_HTTP | ||
338 | GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, | ||
339 | "%s server component started on port %u\n", plugin->name, | ||
340 | plugin->port); | ||
341 | #endif | ||
342 | return res; | ||
343 | } | ||
344 | |||
345 | void | ||
346 | server_stop (struct Plugin *plugin) | ||
347 | { | ||
348 | |||
349 | if (plugin->server_v4 != NULL) | ||
350 | { | ||
351 | MHD_stop_daemon (plugin->server_v4); | ||
352 | plugin->server_v4 = NULL; | ||
353 | } | ||
354 | if (plugin->server_v6 != NULL) | ||
355 | { | ||
356 | MHD_stop_daemon (plugin->server_v6); | ||
357 | plugin->server_v6 = NULL; | ||
358 | } | ||
359 | |||
360 | #if BUILD_HTTPS | ||
361 | GNUNET_free_non_null (plugin->crypto_init); | ||
362 | GNUNET_free_non_null (plugin->cert); | ||
363 | GNUNET_free_non_null (plugin->key); | ||
364 | #endif | ||
365 | |||
366 | #if DEBUG_HTTP | ||
367 | GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, | ||
368 | "%s server component stopped\n", plugin->name); | ||
369 | #endif | ||
370 | } | ||
371 | |||
372 | |||
373 | |||
374 | /* end of plugin_transport_http.c */ | ||