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author | Christian Grothoff <christian@grothoff.org> | 2013-10-16 11:34:10 +0000 |
---|---|---|
committer | Christian Grothoff <christian@grothoff.org> | 2013-10-16 11:34:10 +0000 |
commit | b6bfed8309e6b9b3286b8f608ad899bfb0a97205 (patch) | |
tree | 46cadaba7deadf7cb07dcc0b3d07f28fc147ffc2 /src/gnsrecord | |
parent | 5ad45d439b900ea388b93aca8547ad03c53ddc68 (diff) | |
download | gnunet-b6bfed8309e6b9b3286b8f608ad899bfb0a97205.tar.gz gnunet-b6bfed8309e6b9b3286b8f608ad899bfb0a97205.zip |
-moving code to new libgnunetgnsrecord in preparation for addressing #3052
Diffstat (limited to 'src/gnsrecord')
-rw-r--r-- | src/gnsrecord/Makefile.am | 39 | ||||
-rw-r--r-- | src/gnsrecord/gnsrecord.c | 696 |
2 files changed, 735 insertions, 0 deletions
diff --git a/src/gnsrecord/Makefile.am b/src/gnsrecord/Makefile.am new file mode 100644 index 000000000..185a5312b --- /dev/null +++ b/src/gnsrecord/Makefile.am | |||
@@ -0,0 +1,39 @@ | |||
1 | AM_CPPFLAGS = -I$(top_srcdir)/src/include | ||
2 | |||
3 | plugindir = $(libdir)/gnunet | ||
4 | |||
5 | pkgcfgdir= $(pkgdatadir)/config.d/ | ||
6 | |||
7 | libexecdir= $(pkglibdir)/libexec/ | ||
8 | |||
9 | if MINGW | ||
10 | WINFLAGS = -Wl,--no-undefined -Wl,--export-all-symbols | ||
11 | endif | ||
12 | |||
13 | if USE_COVERAGE | ||
14 | AM_CFLAGS = --coverage -O0 | ||
15 | XLIBS = -lgcov | ||
16 | endif | ||
17 | |||
18 | if ENABLE_TEST_RUN | ||
19 | TESTS = \ | ||
20 | $(check_PROGRAMS) \ | ||
21 | $(check_SCRIPTS) | ||
22 | endif | ||
23 | |||
24 | lib_LTLIBRARIES = \ | ||
25 | libgnunetgnsrecord.la | ||
26 | |||
27 | libgnunetgnsrecord_la_SOURCES = \ | ||
28 | gnsrecord.c | ||
29 | libgnunetgnsrecord_la_LIBADD = \ | ||
30 | $(top_builddir)/src/dns/libgnunetdnsparser.la \ | ||
31 | $(top_builddir)/src/util/libgnunetutil.la \ | ||
32 | $(GN_LIBINTL) | ||
33 | libgnunetgnsrecord_la_LDFLAGS = \ | ||
34 | $(GN_LIB_LDFLAGS) $(WINFLAGS) \ | ||
35 | -version-info 0:0:0 | ||
36 | |||
37 | EXTRA_DIST = \ | ||
38 | $(check_SCRIPTS) | ||
39 | |||
diff --git a/src/gnsrecord/gnsrecord.c b/src/gnsrecord/gnsrecord.c new file mode 100644 index 000000000..da098ab66 --- /dev/null +++ b/src/gnsrecord/gnsrecord.c | |||
@@ -0,0 +1,696 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | (C) 2009-2013 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 gnsrecord/gnsrecord.c | ||
23 | * @brief API to access GNS record data | ||
24 | * @author Martin Schanzenbach | ||
25 | * @author Matthias Wachs | ||
26 | * @author Christian Grothoff | ||
27 | */ | ||
28 | #include "platform.h" | ||
29 | #include "gnunet_util_lib.h" | ||
30 | #include "gnunet_constants.h" | ||
31 | #include "gnunet_signatures.h" | ||
32 | #include "gnunet_conversation_service.h" | ||
33 | #include "gnunet_dnsparser_lib.h" | ||
34 | #include "gnunet_gnsrecord_lib.h" | ||
35 | #include "gnunet_tun_lib.h" | ||
36 | |||
37 | |||
38 | #define LOG(kind,...) GNUNET_log_from (kind, "gnsrecord",__VA_ARGS__) | ||
39 | |||
40 | |||
41 | /** | ||
42 | * Convert the 'value' of a record to a string. | ||
43 | * | ||
44 | * @param type type of the record | ||
45 | * @param data value in binary encoding | ||
46 | * @param data_size number of bytes in @a data | ||
47 | * @return NULL on error, otherwise human-readable representation of the value | ||
48 | */ | ||
49 | char * | ||
50 | GNUNET_NAMESTORE_value_to_string (uint32_t type, | ||
51 | const void *data, | ||
52 | size_t data_size) | ||
53 | { | ||
54 | const char *cdata; | ||
55 | char* result; | ||
56 | char tmp[INET6_ADDRSTRLEN]; | ||
57 | |||
58 | switch (type) | ||
59 | { | ||
60 | case 0: | ||
61 | return NULL; | ||
62 | case GNUNET_DNSPARSER_TYPE_A: | ||
63 | if (data_size != sizeof (struct in_addr)) | ||
64 | return NULL; | ||
65 | if (NULL == inet_ntop (AF_INET, data, tmp, sizeof (tmp))) | ||
66 | return NULL; | ||
67 | return GNUNET_strdup (tmp); | ||
68 | case GNUNET_DNSPARSER_TYPE_NS: | ||
69 | { | ||
70 | char *ns; | ||
71 | size_t off; | ||
72 | |||
73 | off = 0; | ||
74 | ns = GNUNET_DNSPARSER_parse_name (data, | ||
75 | data_size, | ||
76 | &off); | ||
77 | if ( (NULL == ns) || | ||
78 | (off != data_size) ) | ||
79 | { | ||
80 | GNUNET_break_op (0); | ||
81 | return NULL; | ||
82 | } | ||
83 | return ns; | ||
84 | } | ||
85 | case GNUNET_DNSPARSER_TYPE_CNAME: | ||
86 | { | ||
87 | char *cname; | ||
88 | size_t off; | ||
89 | |||
90 | off = 0; | ||
91 | cname = GNUNET_DNSPARSER_parse_name (data, | ||
92 | data_size, | ||
93 | &off); | ||
94 | if ( (NULL == cname) || | ||
95 | (off != data_size) ) | ||
96 | { | ||
97 | GNUNET_break_op (0); | ||
98 | GNUNET_free_non_null (cname); | ||
99 | return NULL; | ||
100 | } | ||
101 | return cname; | ||
102 | } | ||
103 | case GNUNET_DNSPARSER_TYPE_SOA: | ||
104 | { | ||
105 | struct GNUNET_DNSPARSER_SoaRecord *soa; | ||
106 | size_t off; | ||
107 | |||
108 | off = 0; | ||
109 | soa = GNUNET_DNSPARSER_parse_soa (data, | ||
110 | data_size, | ||
111 | &off); | ||
112 | if ( (NULL == soa) || | ||
113 | (off != data_size) ) | ||
114 | { | ||
115 | GNUNET_break_op (0); | ||
116 | return NULL; | ||
117 | } | ||
118 | GNUNET_asprintf (&result, | ||
119 | "rname=%s mname=%s %lu,%lu,%lu,%lu,%lu", | ||
120 | soa->rname, | ||
121 | soa->mname, | ||
122 | soa->serial, | ||
123 | soa->refresh, | ||
124 | soa->retry, | ||
125 | soa->expire, | ||
126 | soa->minimum_ttl); | ||
127 | GNUNET_DNSPARSER_free_soa (soa); | ||
128 | return result; | ||
129 | } | ||
130 | case GNUNET_DNSPARSER_TYPE_PTR: | ||
131 | { | ||
132 | char *ptr; | ||
133 | size_t off; | ||
134 | |||
135 | off = 0; | ||
136 | ptr = GNUNET_DNSPARSER_parse_name (data, | ||
137 | data_size, | ||
138 | &off); | ||
139 | if ( (NULL == ptr) || | ||
140 | (off != data_size) ) | ||
141 | { | ||
142 | GNUNET_break_op (0); | ||
143 | GNUNET_free_non_null (ptr); | ||
144 | return NULL; | ||
145 | } | ||
146 | return ptr; | ||
147 | } | ||
148 | case GNUNET_DNSPARSER_TYPE_MX: | ||
149 | { | ||
150 | struct GNUNET_DNSPARSER_MxRecord *mx; | ||
151 | size_t off; | ||
152 | |||
153 | off = 0; | ||
154 | mx = GNUNET_DNSPARSER_parse_mx (data, | ||
155 | data_size, | ||
156 | &off); | ||
157 | if ( (NULL == mx) || | ||
158 | (off != data_size) ) | ||
159 | { | ||
160 | GNUNET_break_op (0); | ||
161 | GNUNET_free_non_null (mx); | ||
162 | return NULL; | ||
163 | } | ||
164 | GNUNET_asprintf (&result, | ||
165 | "%hu,%s", | ||
166 | mx->preference, | ||
167 | mx->mxhost); | ||
168 | GNUNET_DNSPARSER_free_mx (mx); | ||
169 | return result; | ||
170 | } | ||
171 | case GNUNET_DNSPARSER_TYPE_TXT: | ||
172 | return GNUNET_strndup (data, data_size); | ||
173 | case GNUNET_DNSPARSER_TYPE_AAAA: | ||
174 | if (data_size != sizeof (struct in6_addr)) | ||
175 | return NULL; | ||
176 | if (NULL == inet_ntop (AF_INET6, data, tmp, sizeof (tmp))) | ||
177 | return NULL; | ||
178 | return GNUNET_strdup (tmp); | ||
179 | case GNUNET_NAMESTORE_TYPE_PKEY: | ||
180 | if (data_size != sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey)) | ||
181 | return NULL; | ||
182 | return GNUNET_CRYPTO_ecdsa_public_key_to_string (data); | ||
183 | case GNUNET_NAMESTORE_TYPE_PHONE: | ||
184 | { | ||
185 | const struct GNUNET_CONVERSATION_PhoneRecord *pr; | ||
186 | char *ret; | ||
187 | char *pkey; | ||
188 | |||
189 | if (data_size != sizeof (struct GNUNET_CONVERSATION_PhoneRecord)) | ||
190 | return NULL; | ||
191 | pr = data; | ||
192 | if (0 != ntohl (pr->version)) | ||
193 | return NULL; | ||
194 | pkey = GNUNET_CRYPTO_eddsa_public_key_to_string (&pr->peer.public_key); | ||
195 | GNUNET_asprintf (&ret, | ||
196 | "%u-%s", | ||
197 | ntohl (pr->line), | ||
198 | pkey); | ||
199 | GNUNET_free (pkey); | ||
200 | return ret; | ||
201 | } | ||
202 | case GNUNET_NAMESTORE_TYPE_PSEU: | ||
203 | return GNUNET_strndup (data, data_size); | ||
204 | case GNUNET_NAMESTORE_TYPE_LEHO: | ||
205 | return GNUNET_strndup (data, data_size); | ||
206 | case GNUNET_NAMESTORE_TYPE_VPN: | ||
207 | { | ||
208 | const struct GNUNET_TUN_GnsVpnRecord *vpn; | ||
209 | char* vpn_str; | ||
210 | |||
211 | cdata = data; | ||
212 | if ( (data_size <= sizeof (struct GNUNET_TUN_GnsVpnRecord)) || | ||
213 | ('\0' != cdata[data_size - 1]) ) | ||
214 | return NULL; /* malformed */ | ||
215 | vpn = data; | ||
216 | if (0 == GNUNET_asprintf (&vpn_str, "%u %s %s", | ||
217 | (unsigned int) ntohs (vpn->proto), | ||
218 | (const char*) GNUNET_i2s_full (&vpn->peer), | ||
219 | (const char*) &vpn[1])) | ||
220 | { | ||
221 | GNUNET_free (vpn_str); | ||
222 | return NULL; | ||
223 | } | ||
224 | return vpn_str; | ||
225 | } | ||
226 | case GNUNET_NAMESTORE_TYPE_GNS2DNS: | ||
227 | { | ||
228 | char *ns; | ||
229 | size_t off; | ||
230 | |||
231 | off = 0; | ||
232 | ns = GNUNET_DNSPARSER_parse_name (data, | ||
233 | data_size, | ||
234 | &off); | ||
235 | if ( (NULL == ns) || | ||
236 | (off != data_size) ) | ||
237 | { | ||
238 | GNUNET_break_op (0); | ||
239 | GNUNET_free_non_null (ns); | ||
240 | return NULL; | ||
241 | } | ||
242 | return ns; | ||
243 | } | ||
244 | case GNUNET_DNSPARSER_TYPE_SRV: | ||
245 | { | ||
246 | struct GNUNET_DNSPARSER_SrvRecord *srv; | ||
247 | size_t off; | ||
248 | |||
249 | off = 0; | ||
250 | srv = GNUNET_DNSPARSER_parse_srv ("+", /* FIXME: is this OK? */ | ||
251 | data, | ||
252 | data_size, | ||
253 | &off); | ||
254 | if ( (NULL == srv) || | ||
255 | (off != data_size) ) | ||
256 | { | ||
257 | GNUNET_break_op (0); | ||
258 | return NULL; | ||
259 | } | ||
260 | GNUNET_asprintf (&result, | ||
261 | "%d %d %d _%s._%s.%s", | ||
262 | srv->priority, | ||
263 | srv->weight, | ||
264 | srv->port, | ||
265 | srv->service, | ||
266 | srv->proto, | ||
267 | srv->domain_name); | ||
268 | GNUNET_DNSPARSER_free_srv (srv); | ||
269 | return result; | ||
270 | } | ||
271 | case GNUNET_DNSPARSER_TYPE_TLSA: | ||
272 | { | ||
273 | const struct GNUNET_TUN_DnsTlsaRecord *tlsa; | ||
274 | char* tlsa_str; | ||
275 | |||
276 | cdata = data; | ||
277 | if ( (data_size <= sizeof (struct GNUNET_TUN_DnsTlsaRecord)) || | ||
278 | ('\0' != cdata[data_size - 1]) ) | ||
279 | return NULL; /* malformed */ | ||
280 | tlsa = data; | ||
281 | if (0 == GNUNET_asprintf (&tlsa_str, | ||
282 | "%c %c %c %s", | ||
283 | tlsa->usage, | ||
284 | tlsa->selector, | ||
285 | tlsa->matching_type, | ||
286 | (const char *) &tlsa[1])) | ||
287 | { | ||
288 | GNUNET_free (tlsa_str); | ||
289 | return NULL; | ||
290 | } | ||
291 | return tlsa_str; | ||
292 | } | ||
293 | default: | ||
294 | GNUNET_break (0); | ||
295 | } | ||
296 | GNUNET_break (0); // not implemented | ||
297 | return NULL; | ||
298 | } | ||
299 | |||
300 | |||
301 | /** | ||
302 | * Convert human-readable version of a 'value' of a record to the binary | ||
303 | * representation. | ||
304 | * | ||
305 | * @param type type of the record | ||
306 | * @param s human-readable string | ||
307 | * @param data set to value in binary encoding (will be allocated) | ||
308 | * @param data_size set to number of bytes in @a data | ||
309 | * @return #GNUNET_OK on success | ||
310 | */ | ||
311 | int | ||
312 | GNUNET_NAMESTORE_string_to_value (uint32_t type, | ||
313 | const char *s, | ||
314 | void **data, | ||
315 | size_t *data_size) | ||
316 | { | ||
317 | struct in_addr value_a; | ||
318 | struct in6_addr value_aaaa; | ||
319 | struct GNUNET_CRYPTO_EcdsaPublicKey pkey; | ||
320 | struct GNUNET_TUN_GnsVpnRecord *vpn; | ||
321 | struct GNUNET_TUN_DnsTlsaRecord *tlsa; | ||
322 | char s_peer[103 + 1]; | ||
323 | char s_serv[253 + 1]; | ||
324 | unsigned int proto; | ||
325 | |||
326 | if (NULL == s) | ||
327 | return GNUNET_SYSERR; | ||
328 | switch (type) | ||
329 | { | ||
330 | case 0: | ||
331 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
332 | _("Unsupported record type %d\n"), | ||
333 | (int) type); | ||
334 | return GNUNET_SYSERR; | ||
335 | case GNUNET_DNSPARSER_TYPE_A: | ||
336 | if (1 != inet_pton (AF_INET, s, &value_a)) | ||
337 | { | ||
338 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
339 | _("Unable to parse IPv4 address `%s'\n"), | ||
340 | s); | ||
341 | return GNUNET_SYSERR; | ||
342 | } | ||
343 | *data = GNUNET_malloc (sizeof (struct in_addr)); | ||
344 | memcpy (*data, &value_a, sizeof (value_a)); | ||
345 | *data_size = sizeof (value_a); | ||
346 | return GNUNET_OK; | ||
347 | case GNUNET_DNSPARSER_TYPE_NS: | ||
348 | { | ||
349 | char nsbuf[256]; | ||
350 | size_t off; | ||
351 | |||
352 | off = 0; | ||
353 | if (GNUNET_OK != | ||
354 | GNUNET_DNSPARSER_builder_add_name (nsbuf, | ||
355 | sizeof (nsbuf), | ||
356 | &off, | ||
357 | s)) | ||
358 | { | ||
359 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
360 | _("Failed to serialize NS record with value `%s'\n"), | ||
361 | s); | ||
362 | return GNUNET_SYSERR; | ||
363 | } | ||
364 | *data_size = off; | ||
365 | *data = GNUNET_malloc (off); | ||
366 | memcpy (*data, nsbuf, off); | ||
367 | return GNUNET_OK; | ||
368 | } | ||
369 | case GNUNET_DNSPARSER_TYPE_CNAME: | ||
370 | { | ||
371 | char cnamebuf[256]; | ||
372 | size_t off; | ||
373 | |||
374 | off = 0; | ||
375 | if (GNUNET_OK != | ||
376 | GNUNET_DNSPARSER_builder_add_name (cnamebuf, | ||
377 | sizeof (cnamebuf), | ||
378 | &off, | ||
379 | s)) | ||
380 | { | ||
381 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
382 | _("Failed to serialize CNAME record with value `%s'\n"), | ||
383 | s); | ||
384 | return GNUNET_SYSERR; | ||
385 | } | ||
386 | *data_size = off; | ||
387 | *data = GNUNET_malloc (off); | ||
388 | memcpy (*data, cnamebuf, off); | ||
389 | return GNUNET_OK; | ||
390 | } | ||
391 | case GNUNET_DNSPARSER_TYPE_SOA: | ||
392 | { | ||
393 | struct GNUNET_DNSPARSER_SoaRecord soa; | ||
394 | char soabuf[540]; | ||
395 | char soa_rname[253 + 1]; | ||
396 | char soa_mname[253 + 1]; | ||
397 | unsigned int soa_serial; | ||
398 | unsigned int soa_refresh; | ||
399 | unsigned int soa_retry; | ||
400 | unsigned int soa_expire; | ||
401 | unsigned int soa_min; | ||
402 | size_t off; | ||
403 | |||
404 | if (7 != SSCANF (s, | ||
405 | "rname=%253s mname=%253s %u,%u,%u,%u,%u", | ||
406 | soa_rname, soa_mname, | ||
407 | &soa_serial, &soa_refresh, &soa_retry, &soa_expire, &soa_min)) | ||
408 | { | ||
409 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
410 | _("Unable to parse SOA record `%s'\n"), | ||
411 | s); | ||
412 | return GNUNET_SYSERR; | ||
413 | } | ||
414 | soa.mname = soa_mname; | ||
415 | soa.rname = soa_rname; | ||
416 | soa.serial = (uint32_t) soa_serial; | ||
417 | soa.refresh =(uint32_t) soa_refresh; | ||
418 | soa.retry = (uint32_t) soa_retry; | ||
419 | soa.expire = (uint32_t) soa_expire; | ||
420 | soa.minimum_ttl = (uint32_t) soa_min; | ||
421 | off = 0; | ||
422 | if (GNUNET_OK != | ||
423 | GNUNET_DNSPARSER_builder_add_soa (soabuf, | ||
424 | sizeof (soabuf), | ||
425 | &off, | ||
426 | &soa)) | ||
427 | { | ||
428 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
429 | _("Failed to serialize SOA record with mname `%s' and rname `%s'\n"), | ||
430 | soa_mname, | ||
431 | soa_rname); | ||
432 | return GNUNET_SYSERR; | ||
433 | } | ||
434 | *data_size = off; | ||
435 | *data = GNUNET_malloc (off); | ||
436 | memcpy (*data, soabuf, off); | ||
437 | return GNUNET_OK; | ||
438 | } | ||
439 | case GNUNET_DNSPARSER_TYPE_PTR: | ||
440 | { | ||
441 | char ptrbuf[256]; | ||
442 | size_t off; | ||
443 | |||
444 | off = 0; | ||
445 | if (GNUNET_OK != | ||
446 | GNUNET_DNSPARSER_builder_add_name (ptrbuf, | ||
447 | sizeof (ptrbuf), | ||
448 | &off, | ||
449 | s)) | ||
450 | { | ||
451 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
452 | _("Failed to serialize PTR record with value `%s'\n"), | ||
453 | s); | ||
454 | return GNUNET_SYSERR; | ||
455 | } | ||
456 | *data_size = off; | ||
457 | *data = GNUNET_malloc (off); | ||
458 | memcpy (*data, ptrbuf, off); | ||
459 | return GNUNET_OK; | ||
460 | } | ||
461 | case GNUNET_DNSPARSER_TYPE_MX: | ||
462 | { | ||
463 | struct GNUNET_DNSPARSER_MxRecord mx; | ||
464 | char mxbuf[258]; | ||
465 | char mxhost[253 + 1]; | ||
466 | uint16_t mx_pref; | ||
467 | size_t off; | ||
468 | |||
469 | if (2 != SSCANF(s, "%hu,%253s", &mx_pref, mxhost)) | ||
470 | { | ||
471 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
472 | _("Unable to parse MX record `%s'\n"), | ||
473 | s); | ||
474 | return GNUNET_SYSERR; | ||
475 | } | ||
476 | mx.preference = mx_pref; | ||
477 | mx.mxhost = mxhost; | ||
478 | off = 0; | ||
479 | |||
480 | if (GNUNET_OK != | ||
481 | GNUNET_DNSPARSER_builder_add_mx (mxbuf, | ||
482 | sizeof (mxbuf), | ||
483 | &off, | ||
484 | &mx)) | ||
485 | { | ||
486 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
487 | _("Failed to serialize MX record with hostname `%s'\n"), | ||
488 | mxhost); | ||
489 | return GNUNET_SYSERR; | ||
490 | } | ||
491 | *data_size = off; | ||
492 | *data = GNUNET_malloc (off); | ||
493 | memcpy (*data, mxbuf, off); | ||
494 | return GNUNET_OK; | ||
495 | } | ||
496 | case GNUNET_DNSPARSER_TYPE_TXT: | ||
497 | *data = GNUNET_strdup (s); | ||
498 | *data_size = strlen (s); | ||
499 | return GNUNET_OK; | ||
500 | case GNUNET_DNSPARSER_TYPE_AAAA: | ||
501 | if (1 != inet_pton (AF_INET6, s, &value_aaaa)) | ||
502 | { | ||
503 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
504 | _("Unable to parse IPv6 address `%s'\n"), | ||
505 | s); | ||
506 | return GNUNET_SYSERR; | ||
507 | } | ||
508 | *data = GNUNET_malloc (sizeof (struct in6_addr)); | ||
509 | *data_size = sizeof (struct in6_addr); | ||
510 | memcpy (*data, &value_aaaa, sizeof (value_aaaa)); | ||
511 | return GNUNET_OK; | ||
512 | case GNUNET_NAMESTORE_TYPE_PKEY: | ||
513 | if (GNUNET_OK != | ||
514 | GNUNET_CRYPTO_ecdsa_public_key_from_string (s, strlen (s), &pkey)) | ||
515 | { | ||
516 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
517 | _("Unable to parse PKEY record `%s'\n"), | ||
518 | s); | ||
519 | return GNUNET_SYSERR; | ||
520 | } | ||
521 | *data = GNUNET_new (struct GNUNET_CRYPTO_EcdsaPublicKey); | ||
522 | memcpy (*data, &pkey, sizeof (pkey)); | ||
523 | *data_size = sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey); | ||
524 | return GNUNET_OK; | ||
525 | case GNUNET_NAMESTORE_TYPE_PHONE: | ||
526 | { | ||
527 | struct GNUNET_CONVERSATION_PhoneRecord *pr; | ||
528 | unsigned int line; | ||
529 | const char *dash; | ||
530 | struct GNUNET_PeerIdentity peer; | ||
531 | |||
532 | if ( (NULL == (dash = strchr (s, '-'))) || | ||
533 | (1 != sscanf (s, "%u-", &line)) || | ||
534 | (GNUNET_OK != | ||
535 | GNUNET_CRYPTO_eddsa_public_key_from_string (dash + 1, | ||
536 | strlen (dash + 1), | ||
537 | &peer.public_key)) ) | ||
538 | { | ||
539 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
540 | _("Unable to parse PHONE record `%s'\n"), | ||
541 | s); | ||
542 | return GNUNET_SYSERR; | ||
543 | } | ||
544 | pr = GNUNET_new (struct GNUNET_CONVERSATION_PhoneRecord); | ||
545 | pr->version = htonl (0); | ||
546 | pr->line = htonl ((uint32_t) line); | ||
547 | pr->peer = peer; | ||
548 | *data = pr; | ||
549 | *data_size = sizeof (struct GNUNET_CONVERSATION_PhoneRecord); | ||
550 | return GNUNET_OK; | ||
551 | } | ||
552 | case GNUNET_NAMESTORE_TYPE_PSEU: | ||
553 | *data = GNUNET_strdup (s); | ||
554 | *data_size = strlen (s); | ||
555 | return GNUNET_OK; | ||
556 | case GNUNET_NAMESTORE_TYPE_LEHO: | ||
557 | *data = GNUNET_strdup (s); | ||
558 | *data_size = strlen (s); | ||
559 | return GNUNET_OK; | ||
560 | case GNUNET_NAMESTORE_TYPE_VPN: | ||
561 | if (3 != SSCANF (s,"%u %103s %253s", | ||
562 | &proto, s_peer, s_serv)) | ||
563 | { | ||
564 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
565 | _("Unable to parse VPN record string `%s'\n"), | ||
566 | s); | ||
567 | return GNUNET_SYSERR; | ||
568 | } | ||
569 | *data_size = sizeof (struct GNUNET_TUN_GnsVpnRecord) + strlen (s_serv) + 1; | ||
570 | *data = vpn = GNUNET_malloc (*data_size); | ||
571 | if (GNUNET_OK != GNUNET_CRYPTO_eddsa_public_key_from_string ((char*) s_peer, | ||
572 | strlen (s_peer), | ||
573 | &vpn->peer.public_key)) | ||
574 | { | ||
575 | GNUNET_free (vpn); | ||
576 | *data_size = 0; | ||
577 | return GNUNET_SYSERR; | ||
578 | } | ||
579 | vpn->proto = htons ((uint16_t) proto); | ||
580 | strcpy ((char*)&vpn[1], s_serv); | ||
581 | return GNUNET_OK; | ||
582 | case GNUNET_NAMESTORE_TYPE_GNS2DNS: | ||
583 | { | ||
584 | char nsbuf[256]; | ||
585 | size_t off; | ||
586 | |||
587 | off = 0; | ||
588 | if (GNUNET_OK != | ||
589 | GNUNET_DNSPARSER_builder_add_name (nsbuf, | ||
590 | sizeof (nsbuf), | ||
591 | &off, | ||
592 | s)) | ||
593 | { | ||
594 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
595 | _("Failed to serialize GNS2DNS record with value `%s'\n"), | ||
596 | s); | ||
597 | return GNUNET_SYSERR; | ||
598 | } | ||
599 | *data_size = off; | ||
600 | *data = GNUNET_malloc (off); | ||
601 | memcpy (*data, nsbuf, off); | ||
602 | return GNUNET_OK; | ||
603 | } | ||
604 | case GNUNET_DNSPARSER_TYPE_TLSA: | ||
605 | *data_size = sizeof (struct GNUNET_TUN_DnsTlsaRecord) + strlen (s) - 6; | ||
606 | *data = tlsa = GNUNET_malloc (*data_size); | ||
607 | if (4 != SSCANF (s, "%c %c %c %s", | ||
608 | &tlsa->usage, | ||
609 | &tlsa->selector, | ||
610 | &tlsa->matching_type, | ||
611 | (char*)&tlsa[1])) | ||
612 | { | ||
613 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
614 | _("Unable to parse TLSA record string `%s'\n"), | ||
615 | s); | ||
616 | *data_size = 0; | ||
617 | GNUNET_free (tlsa); | ||
618 | return GNUNET_SYSERR; | ||
619 | } | ||
620 | return GNUNET_OK; | ||
621 | default: | ||
622 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
623 | _("Unsupported record type %d\n"), | ||
624 | (int) type); | ||
625 | return GNUNET_SYSERR; | ||
626 | } | ||
627 | } | ||
628 | |||
629 | |||
630 | /** | ||
631 | * Mapping of record type numbers to human-readable | ||
632 | * record type names. | ||
633 | */ | ||
634 | static struct { | ||
635 | const char *name; | ||
636 | uint32_t number; | ||
637 | } name_map[] = { | ||
638 | { "A", GNUNET_DNSPARSER_TYPE_A }, | ||
639 | { "NS", GNUNET_DNSPARSER_TYPE_NS }, | ||
640 | { "CNAME", GNUNET_DNSPARSER_TYPE_CNAME }, | ||
641 | { "SOA", GNUNET_DNSPARSER_TYPE_SOA }, | ||
642 | { "PTR", GNUNET_DNSPARSER_TYPE_PTR }, | ||
643 | { "MX", GNUNET_DNSPARSER_TYPE_MX }, | ||
644 | { "TXT", GNUNET_DNSPARSER_TYPE_TXT }, | ||
645 | { "AAAA", GNUNET_DNSPARSER_TYPE_AAAA }, | ||
646 | { "PKEY", GNUNET_NAMESTORE_TYPE_PKEY }, | ||
647 | { "PSEU", GNUNET_NAMESTORE_TYPE_PSEU }, | ||
648 | { "LEHO", GNUNET_NAMESTORE_TYPE_LEHO }, | ||
649 | { "VPN", GNUNET_NAMESTORE_TYPE_VPN }, | ||
650 | { "GNS2DNS", GNUNET_NAMESTORE_TYPE_GNS2DNS }, | ||
651 | { "PHONE", GNUNET_NAMESTORE_TYPE_PHONE }, | ||
652 | { "TLSA", GNUNET_DNSPARSER_TYPE_TLSA }, | ||
653 | { NULL, UINT32_MAX } | ||
654 | }; | ||
655 | |||
656 | |||
657 | /** | ||
658 | * Convert a type name (i.e. "AAAA") to the corresponding number. | ||
659 | * | ||
660 | * @param dns_typename name to convert | ||
661 | * @return corresponding number, UINT32_MAX on error | ||
662 | */ | ||
663 | uint32_t | ||
664 | GNUNET_NAMESTORE_typename_to_number (const char *dns_typename) | ||
665 | { | ||
666 | unsigned int i; | ||
667 | |||
668 | i=0; | ||
669 | while ( (name_map[i].name != NULL) && | ||
670 | (0 != strcasecmp (dns_typename, name_map[i].name)) ) | ||
671 | i++; | ||
672 | return name_map[i].number; | ||
673 | } | ||
674 | |||
675 | |||
676 | /** | ||
677 | * Convert a type number (i.e. 1) to the corresponding type string (i.e. "A") | ||
678 | * | ||
679 | * @param type number of a type to convert | ||
680 | * @return corresponding typestring, NULL on error | ||
681 | */ | ||
682 | const char * | ||
683 | GNUNET_NAMESTORE_number_to_typename (uint32_t type) | ||
684 | { | ||
685 | unsigned int i; | ||
686 | |||
687 | i=0; | ||
688 | while ( (name_map[i].name != NULL) && | ||
689 | (type != name_map[i].number) ) | ||
690 | i++; | ||
691 | return name_map[i].name; | ||
692 | } | ||
693 | |||
694 | |||
695 | |||
696 | /* end of namestore_common.c */ | ||