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"
33 #define VERBOSE GNUNET_EXTRA_LOGGING
36 * Using DNS root servers to check gnunet's resolver service
37 * a.root-servers.net <-> 198.41.0.4 is a fix 1:1 mapping that should not change over years
38 * For more information have a look at IANA's website http://www.root-servers.org/
40 #define ROOTSERVER_NAME "a.root-servers.net"
41 #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,
54 _("Got IP address `%s' for our host.\n"), GNUNET_a2s (sa,
60 check_localhost_num (void *cls, const char *hostname)
66 if (0 == strcmp (hostname, "127.0.0.1"))
69 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
70 "Received correct hostname `%s'.\n", hostname);
77 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
78 "Received invalid hostname `%s'.\n", hostname);
86 check_localhost (void *cls, const char *hostname)
92 if (0 == strcmp (hostname, "localhost"))
95 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
96 "Received correct hostname `%s'.\n", hostname);
102 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
103 "Received unexpected hostname `%s', expected `localhost' (this could be OK).\n",
109 check_127 (void *cls, const struct sockaddr *sa, socklen_t salen)
112 const struct sockaddr_in *sai = (const struct sockaddr_in *) sa;
116 GNUNET_assert (sizeof (struct sockaddr_in) == salen);
117 if (sai->sin_addr.s_addr == htonl (INADDR_LOOPBACK))
120 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct address.\n");
127 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received incorrect address.\n");
134 check_local_fqdn (void *cls, const char *gnunet_fqdn)
138 struct hostent *host;
139 char hostname[GNUNET_OS_get_hostname_max_length () + 1];
141 if (0 != gethostname (hostname, sizeof (hostname) - 1))
143 GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
148 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Resolving our FQDN `%s'\n"),
151 host = gethostbyname (hostname);
154 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
155 _("Could not resolve our FQDN : %s %u\n"),
156 hstrerror (h_errno), h_errno);
160 GNUNET_assert (0 != host);
162 result = strcmp (host->h_name, gnunet_fqdn);
165 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
166 "Local resolved and resolver resolved fqdns are not equal\n");
168 GNUNET_assert (0 == result);
174 check_rootserver_ip (void *cls, const struct sockaddr *sa, socklen_t salen)
177 const struct sockaddr_in *sai = (const struct sockaddr_in *) sa;
181 GNUNET_assert (sizeof (struct sockaddr_in) == salen);
183 if (0 == strcmp (inet_ntoa (sai->sin_addr), ROOTSERVER_IP))
186 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
187 "Received correct rootserver ip address.\n");
194 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
195 "Received incorrect rootserver ip address.\n");
202 check_rootserver_name (void *cls, const char *hostname)
206 if (hostname == NULL)
209 if (0 == strcmp (hostname, ROOTSERVER_NAME))
212 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
213 "Received correct rootserver hostname `%s'.\n", hostname);
220 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
221 "Received invalid rootserver hostname `%s'.\n", hostname);
228 run (void *cls, char *const *args, const char *cfgfile,
229 const struct GNUNET_CONFIGURATION_Handle *cfg)
232 struct sockaddr_in sa;
233 struct GNUNET_TIME_Relative timeout =
234 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30);
238 memset (&sa, 0, sizeof (sa));
239 sa.sin_family = AF_INET;
240 #if HAVE_SOCKADDR_IN_SIN_LEN
241 sa.sin_len = (u_char) sizeof (sa);
243 sa.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
246 * Looking up our own fqdn
248 own_fqdn = GNUNET_RESOLVER_local_fqdn_get ();
249 check_local_fqdn (NULL, own_fqdn);
250 GNUNET_free_non_null (own_fqdn);
253 * Testing non-local DNS resolution
254 * DNS rootserver to test: a.root-servers.net - 198.41.0.4
256 const char *rootserver_name = ROOTSERVER_NAME;
257 struct hostent *rootserver;
259 rootserver = gethostbyname (rootserver_name);
260 if (rootserver == NULL)
262 /* Error: resolving ip addresses does not work */
264 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
265 _("gethostbyname() could not lookup IP address: %s\n"),
266 hstrerror (h_errno));
269 "System seems to be off-line, will not run all DNS tests\n");
270 *ok = 0; /* mark test as passing anyway */
274 /* Counting returned IP addresses */
275 while (rootserver->h_addr_list[count_ips] != NULL)
280 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
281 "IP received range for root name server, but a root name server has only 1 IP\n");
286 /* Comparing to resolved address to the address the root name server should have */
288 (inet_ntoa (*(struct in_addr *) rootserver->h_addr_list[0]),
292 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
293 "IP received and IP for root name server differ\n");
298 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
299 "System's own forward name resolution is working\n");
302 /* Resolve the same using GNUNET */
303 GNUNET_RESOLVER_ip_get (ROOTSERVER_NAME, AF_INET, timeout,
304 &check_rootserver_ip, cls);
307 * Success: forward lookups work as expected
308 * Next step: reverse lookups
311 struct in_addr rootserver_addr;
313 rootserver->h_name = "";
314 if (1 != inet_pton (AF_INET, ROOTSERVER_IP, &rootserver_addr))
317 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
318 "Could not transform root name server IP address\n");
324 gethostbyaddr (&rootserver_addr, sizeof (rootserver_addr), AF_INET);
325 if (rootserver == NULL)
327 /* Error: resolving IP addresses does not work */
329 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
330 _("gethostbyaddr() could not lookup hostname: %s\n"),
331 hstrerror (h_errno));
337 if (0 != strcmp (rootserver->h_name, ROOTSERVER_NAME))
340 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
341 "Received hostname and hostname for root name server differ\n");
348 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
349 "System's own reverse name resolution is working\n");
352 /* Resolve the same using GNUNET */
353 memset (&sa, 0, sizeof (sa));
354 sa.sin_family = AF_INET;
355 #if HAVE_SOCKADDR_IN_SIN_LEN
356 sa.sin_len = (u_char) sizeof (sa);
359 inet_aton (ROOTSERVER_IP, &sa.sin_addr);
361 sa.sin_addr.S_un.S_addr = inet_addr (ROOTSERVER_IP);
363 GNUNET_RESOLVER_hostname_get ((const struct sockaddr *) &sa,
364 sizeof (struct sockaddr), GNUNET_YES, timeout,
365 &check_rootserver_name, cls);
367 memset (&sa, 0, sizeof (sa));
368 sa.sin_family = AF_INET;
369 #if HAVE_SOCKADDR_IN_SIN_LEN
370 sa.sin_len = (u_char) sizeof (sa);
372 sa.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
374 GNUNET_RESOLVER_ip_get ("localhost", AF_INET, timeout, &check_127, cls);
375 GNUNET_RESOLVER_hostname_get ((const struct sockaddr *) &sa,
376 sizeof (struct sockaddr), GNUNET_YES, timeout,
377 &check_localhost, cls);
379 GNUNET_RESOLVER_hostname_get ((const struct sockaddr *) &sa,
380 sizeof (struct sockaddr), GNUNET_NO, timeout,
381 &check_localhost_num, cls);
382 GNUNET_RESOLVER_hostname_resolve (AF_UNSPEC, timeout, &check_hostname, cls);
389 int ok = 1 + 2 + 4 + 8;
392 struct GNUNET_OS_Process *proc;
395 { "test-resolver-api", "-c", "test_resolver_api_data.conf",
401 struct GNUNET_GETOPT_CommandLineOption options[] =
402 { GNUNET_GETOPT_OPTION_END };
403 pfx = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_BINDIR);
404 GNUNET_asprintf (&fn, "%s%cgnunet-service-resolver", pfx, DIR_SEPARATOR);
406 proc = GNUNET_OS_start_process (NULL, NULL, fn, "gnunet-service-resolver",
410 "-c", "test_resolver_api_data.conf", NULL);
411 GNUNET_assert (NULL != proc);
413 GNUNET_assert (GNUNET_OK ==
414 GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
415 argv, "test-resolver-api", "nohelp",
416 options, &run, &ok));
417 if (0 != GNUNET_OS_process_kill (proc, SIGTERM))
419 GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
422 GNUNET_OS_process_wait (proc);
423 GNUNET_OS_process_close (proc);
426 fprintf (stderr, "Missed some resolutions: %u\n", ok);
431 main (int argc, char *argv[])
435 GNUNET_log_setup ("test-resolver-api",
447 /* end of test_resolver_api.c */