2 This file is part of GNUnet.
3 (C) 2009 Christian Grothoff (and other contributing authors)
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.
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.
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.
21 * @file resolver/test_resolver_api.c
22 * @brief testcase for resolver_api.c
25 #include "gnunet_common.h"
26 #include "gnunet_getopt_lib.h"
27 #include "gnunet_os_lib.h"
28 #include "gnunet_program_lib.h"
29 #include "gnunet_scheduler_lib.h"
30 #include "gnunet_resolver_service.h"
35 * Using DNS root servers to check gnunet's resolver service
36 * a.root-servers.net <-> 198.41.0.4 is a fix 1:1 mapping that should not change over years
37 * For more information have a look at IANA's website http://www.root-servers.org/
39 #define ROOTSERVER_NAME "a.root-servers.net"
40 #define ROOTSERVER_IP "198.41.0.4"
44 check_hostname (void *cls, const struct sockaddr *sa, socklen_t salen)
53 GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Got IP address `%s' for our host.\n"),
54 GNUNET_a2s (sa, salen));
59 check_localhost_num (void *cls, const char *hostname)
65 if (0 == strcmp (hostname, "127.0.0.1"))
67 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct hostname `%s'.\n",
73 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Received invalid hostname `%s'.\n",
81 check_localhost (void *cls, const char *hostname)
87 if (0 == strcmp (hostname, "localhost"))
89 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct hostname `%s'.\n",
95 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
96 "Received unexpected hostname `%s', expected `localhost' (this could be OK).\n",
103 check_127 (void *cls, const struct sockaddr *sa, socklen_t salen)
106 const struct sockaddr_in *sai = (const struct sockaddr_in *) sa;
110 GNUNET_assert (sizeof (struct sockaddr_in) == salen);
111 if (sai->sin_addr.s_addr == htonl (INADDR_LOOPBACK))
113 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct address.\n");
118 char buf[INET_ADDRSTRLEN];
120 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Received incorrect address`%s'.\n",
121 inet_ntop (AF_INET, &sai->sin_addr, buf, sizeof (buf)));
128 check_local_fqdn (void *cls, const char *gnunet_fqdn)
132 struct hostent *host;
133 char hostname[GNUNET_OS_get_hostname_max_length () + 1];
135 if (0 != gethostname (hostname, sizeof (hostname) - 1))
137 GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
141 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Resolving our FQDN `%s'\n"),
143 host = gethostbyname (hostname);
146 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
147 _("Could not resolve our FQDN: %s %u\n"), hstrerror (h_errno),
152 GNUNET_assert (0 != host);
154 result = strcmp (host->h_name, gnunet_fqdn);
157 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
158 "Local resolved and resolver resolved fqdns are not equal\n");
160 GNUNET_assert (0 == result);
165 check_rootserver_ip (void *cls, const struct sockaddr *sa, socklen_t salen)
168 const struct sockaddr_in *sai = (const struct sockaddr_in *) sa;
172 GNUNET_assert (sizeof (struct sockaddr_in) == salen);
174 if (0 == strcmp (inet_ntoa (sai->sin_addr), ROOTSERVER_IP))
176 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
177 "Received correct rootserver ip address.\n");
182 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
183 "Received incorrect rootserver ip address.\n");
190 check_rootserver_name (void *cls, const char *hostname)
194 if (NULL == hostname)
197 if (0 == strcmp (hostname, ROOTSERVER_NAME))
199 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
200 "Received correct rootserver hostname `%s'.\n", hostname);
205 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
206 "Received invalid rootserver hostname `%s'.\n", hostname);
213 run (void *cls, char *const *args, const char *cfgfile,
214 const struct GNUNET_CONFIGURATION_Handle *cfg)
217 struct sockaddr_in sa;
218 struct GNUNET_TIME_Relative timeout =
219 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30);
223 memset (&sa, 0, sizeof (sa));
224 sa.sin_family = AF_INET;
225 #if HAVE_SOCKADDR_IN_SIN_LEN
226 sa.sin_len = (u_char) sizeof (sa);
228 sa.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
231 * Looking up our own fqdn
233 own_fqdn = GNUNET_RESOLVER_local_fqdn_get ();
234 check_local_fqdn (NULL, own_fqdn);
235 GNUNET_free_non_null (own_fqdn);
238 * Testing non-local DNS resolution
239 * DNS rootserver to test: a.root-servers.net - 198.41.0.4
241 const char *rootserver_name = ROOTSERVER_NAME;
242 struct hostent *rootserver;
244 rootserver = gethostbyname (rootserver_name);
245 if (rootserver == NULL)
247 /* Error: resolving ip addresses does not work */
248 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
249 _("gethostbyname() could not lookup IP address: %s\n"),
250 hstrerror (h_errno));
252 "%s", "System seems to be off-line, will not run all DNS tests\n");
253 *ok = 0; /* mark test as passing anyway */
257 /* Counting returned IP addresses */
258 while (rootserver->h_addr_list[count_ips] != NULL)
262 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
263 "IP received range for root name server, but a root name server has only 1 IP\n");
267 /* Comparing to resolved address to the address the root name server should have */
269 (inet_ntoa (*(struct in_addr *) rootserver->h_addr_list[0]),
272 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
273 "IP received and IP for root name server differ\n");
276 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
277 "System's own forward name resolution is working\n");
278 /* Resolve the same using GNUNET */
279 GNUNET_RESOLVER_ip_get (ROOTSERVER_NAME, AF_INET, timeout,
280 &check_rootserver_ip, cls);
283 * Success: forward lookups work as expected
284 * Next step: reverse lookups
287 struct in_addr rootserver_addr;
289 rootserver->h_name = "";
290 if (1 != inet_pton (AF_INET, ROOTSERVER_IP, &rootserver_addr))
292 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
293 "Could not transform root name server IP address\n");
298 gethostbyaddr (&rootserver_addr, sizeof (rootserver_addr), AF_INET);
299 if (rootserver == NULL)
301 /* Error: resolving IP addresses does not work */
302 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
303 _("gethostbyaddr() could not lookup hostname: %s\n"),
304 hstrerror (h_errno));
309 if (0 != strcmp (rootserver->h_name, ROOTSERVER_NAME))
311 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
312 "Received hostname and hostname for root name server differ\n");
317 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
318 "System's own reverse name resolution is working\n");
319 /* Resolve the same using GNUNET */
320 memset (&sa, 0, sizeof (sa));
321 sa.sin_family = AF_INET;
322 #if HAVE_SOCKADDR_IN_SIN_LEN
323 sa.sin_len = (u_char) sizeof (sa);
326 inet_aton (ROOTSERVER_IP, &sa.sin_addr);
328 sa.sin_addr.S_un.S_addr = inet_addr (ROOTSERVER_IP);
330 GNUNET_RESOLVER_hostname_get ((const struct sockaddr *) &sa,
331 sizeof (struct sockaddr), GNUNET_YES, timeout,
332 &check_rootserver_name, cls);
334 memset (&sa, 0, sizeof (sa));
335 sa.sin_family = AF_INET;
336 #if HAVE_SOCKADDR_IN_SIN_LEN
337 sa.sin_len = (u_char) sizeof (sa);
339 sa.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
341 GNUNET_RESOLVER_ip_get ("localhost", AF_INET, timeout, &check_127, cls);
342 GNUNET_RESOLVER_hostname_get ((const struct sockaddr *) &sa,
343 sizeof (struct sockaddr), GNUNET_YES, timeout,
344 &check_localhost, cls);
346 GNUNET_RESOLVER_hostname_get ((const struct sockaddr *) &sa,
347 sizeof (struct sockaddr), GNUNET_NO, timeout,
348 &check_localhost_num, cls);
349 GNUNET_RESOLVER_hostname_resolve (AF_UNSPEC, timeout, &check_hostname, cls);
355 main (int argc, char *argv[])
357 int ok = 1 + 2 + 4 + 8;
360 struct GNUNET_OS_Process *proc;
361 char *const argvx[] = {
362 "test-resolver-api", "-c", "test_resolver_api_data.conf", NULL
364 struct GNUNET_GETOPT_CommandLineOption options[] =
365 { GNUNET_GETOPT_OPTION_END };
367 GNUNET_log_setup ("test-resolver-api",
370 pfx = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_BINDIR);
371 GNUNET_asprintf (&fn, "%s%cgnunet-service-resolver", pfx, DIR_SEPARATOR);
373 proc = GNUNET_OS_start_process (GNUNET_YES, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, NULL, fn, "gnunet-service-resolver",
374 "-c", "test_resolver_api_data.conf", NULL);
375 GNUNET_assert (NULL != proc);
377 GNUNET_assert (GNUNET_OK ==
378 GNUNET_PROGRAM_run ((sizeof (argvx) / sizeof (char *)) - 1,
379 argvx, "test-resolver-api", "nohelp",
380 options, &run, &ok));
381 if (0 != GNUNET_OS_process_kill (proc, SIGTERM))
383 GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
386 GNUNET_OS_process_wait (proc);
387 GNUNET_OS_process_destroy (proc);
390 FPRINTF (stderr, "Missed some resolutions: %u\n", ok);
395 /* end of test_resolver_api.c */