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_NO
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, _("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",
102 check_127 (void *cls, const struct sockaddr *sa, socklen_t salen)
105 const struct sockaddr_in *sai = (const struct sockaddr_in *) sa;
109 GNUNET_assert (sizeof (struct sockaddr_in) == salen);
110 if (sai->sin_addr.s_addr == htonl (INADDR_LOOPBACK))
112 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct address.\n");
117 char buf[INET_ADDRSTRLEN];
119 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Received incorrect address`%s'.\n",
120 inet_ntop (AF_INET, &sai->sin_addr, buf, sizeof (buf)));
126 check_local_fqdn (void *cls, const char *gnunet_fqdn)
130 struct hostent *host;
131 char hostname[GNUNET_OS_get_hostname_max_length () + 1];
133 if (0 != gethostname (hostname, sizeof (hostname) - 1))
135 GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
139 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Resolving our FQDN `%s'\n"),
141 host = gethostbyname (hostname);
144 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
145 _("Could not resolve our FQDN: %s %u\n"), hstrerror (h_errno),
150 GNUNET_assert (0 != host);
152 result = strcmp (host->h_name, gnunet_fqdn);
155 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
156 "Local resolved and resolver resolved fqdns are not equal\n");
158 GNUNET_assert (0 == result);
164 check_rootserver_ip (void *cls, const struct sockaddr *sa, socklen_t salen)
167 const struct sockaddr_in *sai = (const struct sockaddr_in *) sa;
171 GNUNET_assert (sizeof (struct sockaddr_in) == salen);
173 if (0 == strcmp (inet_ntoa (sai->sin_addr), ROOTSERVER_IP))
175 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
176 "Received correct rootserver ip address.\n");
181 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
182 "Received incorrect rootserver ip address.\n");
188 check_rootserver_name (void *cls, const char *hostname)
192 if (hostname == NULL)
195 if (0 == strcmp (hostname, ROOTSERVER_NAME))
197 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
198 "Received correct rootserver hostname `%s'.\n", hostname);
203 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
204 "Received invalid rootserver hostname `%s'.\n", hostname);
210 run (void *cls, char *const *args, const char *cfgfile,
211 const struct GNUNET_CONFIGURATION_Handle *cfg)
214 struct sockaddr_in sa;
215 struct GNUNET_TIME_Relative timeout =
216 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30);
220 memset (&sa, 0, sizeof (sa));
221 sa.sin_family = AF_INET;
222 #if HAVE_SOCKADDR_IN_SIN_LEN
223 sa.sin_len = (u_char) sizeof (sa);
225 sa.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
228 * Looking up our own fqdn
230 own_fqdn = GNUNET_RESOLVER_local_fqdn_get ();
231 check_local_fqdn (NULL, own_fqdn);
232 GNUNET_free_non_null (own_fqdn);
235 * Testing non-local DNS resolution
236 * DNS rootserver to test: a.root-servers.net - 198.41.0.4
238 const char *rootserver_name = ROOTSERVER_NAME;
239 struct hostent *rootserver;
241 rootserver = gethostbyname (rootserver_name);
242 if (rootserver == NULL)
244 /* Error: resolving ip addresses does not work */
245 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
246 _("gethostbyname() could not lookup IP address: %s\n"),
247 hstrerror (h_errno));
249 "%s", "System seems to be off-line, will not run all DNS tests\n");
250 *ok = 0; /* mark test as passing anyway */
254 /* Counting returned IP addresses */
255 while (rootserver->h_addr_list[count_ips] != NULL)
259 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
260 "IP received range for root name server, but a root name server has only 1 IP\n");
264 /* Comparing to resolved address to the address the root name server should have */
266 (inet_ntoa (*(struct in_addr *) rootserver->h_addr_list[0]),
269 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
270 "IP received and IP for root name server differ\n");
273 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
274 "System's own forward name resolution is working\n");
275 /* Resolve the same using GNUNET */
276 GNUNET_RESOLVER_ip_get (ROOTSERVER_NAME, AF_INET, timeout,
277 &check_rootserver_ip, cls);
280 * Success: forward lookups work as expected
281 * Next step: reverse lookups
284 struct in_addr rootserver_addr;
286 rootserver->h_name = "";
287 if (1 != inet_pton (AF_INET, ROOTSERVER_IP, &rootserver_addr))
289 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
290 "Could not transform root name server IP address\n");
295 gethostbyaddr (&rootserver_addr, sizeof (rootserver_addr), AF_INET);
296 if (rootserver == NULL)
298 /* Error: resolving IP addresses does not work */
299 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
300 _("gethostbyaddr() could not lookup hostname: %s\n"),
301 hstrerror (h_errno));
306 if (0 != strcmp (rootserver->h_name, ROOTSERVER_NAME))
308 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
309 "Received hostname and hostname for root name server differ\n");
314 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
315 "System's own reverse name resolution is working\n");
316 /* Resolve the same using GNUNET */
317 memset (&sa, 0, sizeof (sa));
318 sa.sin_family = AF_INET;
319 #if HAVE_SOCKADDR_IN_SIN_LEN
320 sa.sin_len = (u_char) sizeof (sa);
323 inet_aton (ROOTSERVER_IP, &sa.sin_addr);
325 sa.sin_addr.S_un.S_addr = inet_addr (ROOTSERVER_IP);
327 GNUNET_RESOLVER_hostname_get ((const struct sockaddr *) &sa,
328 sizeof (struct sockaddr), GNUNET_YES, timeout,
329 &check_rootserver_name, cls);
331 memset (&sa, 0, sizeof (sa));
332 sa.sin_family = AF_INET;
333 #if HAVE_SOCKADDR_IN_SIN_LEN
334 sa.sin_len = (u_char) sizeof (sa);
336 sa.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
338 GNUNET_RESOLVER_ip_get ("localhost", AF_INET, timeout, &check_127, cls);
339 GNUNET_RESOLVER_hostname_get ((const struct sockaddr *) &sa,
340 sizeof (struct sockaddr), GNUNET_YES, timeout,
341 &check_localhost, cls);
343 GNUNET_RESOLVER_hostname_get ((const struct sockaddr *) &sa,
344 sizeof (struct sockaddr), GNUNET_NO, timeout,
345 &check_localhost_num, cls);
346 GNUNET_RESOLVER_hostname_resolve (AF_UNSPEC, timeout, &check_hostname, cls);
353 int ok = 1 + 2 + 4 + 8;
356 struct GNUNET_OS_Process *proc;
359 { "test-resolver-api", "-c", "test_resolver_api_data.conf",
365 struct GNUNET_GETOPT_CommandLineOption options[] =
366 { GNUNET_GETOPT_OPTION_END };
367 pfx = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_BINDIR);
368 GNUNET_asprintf (&fn, "%s%cgnunet-service-resolver", pfx, DIR_SEPARATOR);
370 proc = GNUNET_OS_start_process (GNUNET_YES, 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 (argv) / sizeof (char *)) - 1,
379 argv, "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_close (proc);
390 FPRINTF (stderr, "Missed some resolutions: %u\n", ok);
395 main (int argc, char *argv[])
399 GNUNET_log_setup ("test-resolver-api",
411 /* end of test_resolver_api.c */