/*
- This file is part of GNUnet.
- (C) 2009 Christian Grothoff (and other contributing authors)
-
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
- option) any later version.
-
- GNUnet is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
-*/
+ This file is part of GNUnet.
+ Copyright (C) 2009 GNUnet e.V.
+
+ GNUnet is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Affero General Public License as published
+ by the Free Software Foundation, either version 3 of the License,
+ or (at your option) any later version.
+
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+ SPDX-License-Identifier: AGPL3.0-or-later
+ */
/**
* @file resolver/test_resolver_api.c
* @brief testcase for resolver_api.c
*/
#include "platform.h"
-#include "gnunet_common.h"
-#include "gnunet_getopt_lib.h"
-#include "gnunet_os_lib.h"
-#include "gnunet_program_lib.h"
-#include "gnunet_scheduler_lib.h"
+#include "gnunet_util_lib.h"
#include "gnunet_resolver_service.h"
#include "resolver.h"
-#define VERBOSE GNUNET_NO
+
+static int disable_rootserver_check;
+
+
+/**
+ * Using DNS root servers to check gnunet's resolver service
+ * a.root-servers.net <-> 198.41.0.4 is a fix 1:1 mapping that should not change over years
+ * For more information have a look at IANA's website http://www.root-servers.org/
+ */
+#define ROOTSERVER_NAME "a.root-servers.net"
+#define ROOTSERVER_IP "198.41.0.4"
static void
-check_hostname (void *cls, const struct sockaddr *sa, socklen_t salen)
+check_hostname (void *cls,
+ const struct sockaddr *sa,
+ socklen_t salen)
{
int *ok = cls;
- if (salen == 0)
- {
- (*ok) &= ~8;
- return;
- }
+ if (0 == salen)
+ {
+ (*ok) &= ~8;
+ return;
+ }
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _("Got IP address `%s' for our host.\n"),
+ "Got IP address `%s' for our host.\n",
GNUNET_a2s (sa, salen));
}
static void
-check_localhost_num (void *cls, const char *hostname)
+check_localhost_num (void *cls,
+ const char *hostname)
{
int *ok = cls;
+
if (hostname == NULL)
return;
if (0 == strcmp (hostname, "127.0.0.1"))
- {
-#if DEBUG_RESOLVER
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received correct hostname `%s'.\n", hostname);
-#endif
- (*ok) &= ~4;
- }
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received correct hostname `%s'.\n",
+ hostname);
+ (*ok) &= ~4;
+ }
else
- {
-#if DEBUG_RESOLVER
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received invalid hostname `%s'.\n", hostname);
-#endif
- GNUNET_break (0);
- }
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Received invalid hostname `%s'.\n",
+ hostname);
+ GNUNET_break (0);
+ }
}
+
static void
-check_localhost (void *cls, const char *hostname)
+check_localhost (void *cls,
+ const char *hostname)
{
int *ok = cls;
- if (hostname == NULL)
+
+ if (NULL == hostname)
return;
if (0 == strcmp (hostname, "localhost"))
- {
-#if DEBUG_RESOLVER
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received correct hostname `%s'.\n", hostname);
-#endif
- (*ok) &= ~2;
- }
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received correct hostname `%s'.\n",
+ hostname);
+ (*ok) &= ~2;
+ }
else
- {
-#if DEBUG_RESOLVER
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received invalid hostname `%s'.\n", hostname);
-#endif
- GNUNET_break (0);
- }
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Received unexpected hostname `%s', expected `localhost' (this could be OK).\n",
+ hostname);
+ }
}
+
static void
check_127 (void *cls, const struct sockaddr *sa, socklen_t salen)
{
int *ok = cls;
const struct sockaddr_in *sai = (const struct sockaddr_in *) sa;
- if (sa == NULL)
+ if (NULL == sa)
return;
- GNUNET_assert (sizeof (struct sockaddr_in) == salen);
+ GNUNET_assert (sizeof(struct sockaddr_in) == salen);
if (sai->sin_addr.s_addr == htonl (INADDR_LOOPBACK))
- {
-#if DEBUG_RESOLVER
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct address.\n");
-#endif
- (*ok) &= ~1;
- }
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received correct address.\n");
+ (*ok) &= ~1;
+ }
else
- {
-#if DEBUG_RESOLVER
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received incorrect address.\n");
-#endif
- GNUNET_break (0);
- }
+ {
+ char buf[INET_ADDRSTRLEN];
+
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Received incorrect address `%s'.\n",
+ inet_ntop (AF_INET,
+ &sai->sin_addr,
+ buf,
+ sizeof(buf)));
+ GNUNET_break (0);
+ }
}
+
static void
-run (void *cls,
- struct GNUNET_SCHEDULER_Handle *sched,
- char *const *args,
- const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
+check_rootserver_ip (void *cls, const struct sockaddr *sa, socklen_t salen)
{
+ int *ok = cls;
+ const struct sockaddr_in *sai = (const struct sockaddr_in *) sa;
+
+ if (NULL == sa)
+ return;
+ GNUNET_assert (sizeof(struct sockaddr_in) == salen);
+
+ if (0 == strcmp (inet_ntoa (sai->sin_addr), ROOTSERVER_IP))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received correct rootserver ip address.\n");
+ (*ok) &= ~1;
+ }
+ else
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received incorrect rootserver ip address.\n");
+ GNUNET_break (0);
+ }
+}
+
+
+static void
+check_rootserver_name (void *cls,
+ const char *hostname)
+{
+ int *ok = cls;
+
+ if (NULL == hostname)
+ return;
+
+ if (0 == strcmp (hostname, ROOTSERVER_NAME))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received correct rootserver hostname `%s'.\n",
+ hostname);
+ (*ok) &= ~2;
+ }
+ else
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Received invalid rootserver hostname `%s', expected `%s'\n",
+ hostname,
+ ROOTSERVER_NAME);
+ GNUNET_break (disable_rootserver_check);
+ }
+}
+
+
+static void
+run (void *cls, char *const *args, const char *cfgfile,
+ const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+ int *ok = cls;
struct sockaddr_in sa;
struct GNUNET_TIME_Relative timeout =
- GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
- 2500);
- memset (&sa, 0, sizeof (sa));
+ GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30);
+ int count_ips = 0;
+ char *own_fqdn;
+ const char *rootserver_name = ROOTSERVER_NAME;
+ struct hostent *rootserver;
+ struct in_addr rootserver_addr;
+
+ memset (&sa, 0, sizeof(sa));
sa.sin_family = AF_INET;
+#if HAVE_SOCKADDR_IN_SIN_LEN
+ sa.sin_len = (u_char) sizeof(sa);
+#endif
sa.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
- GNUNET_RESOLVER_ip_get (sched,
- cfg,
- "localhost", AF_INET, timeout, &check_127, cls);
- GNUNET_RESOLVER_hostname_get (sched,
- cfg,
- (const struct sockaddr *) &sa,
- sizeof (struct sockaddr),
- GNUNET_YES, timeout, &check_localhost, cls);
- GNUNET_RESOLVER_hostname_get (sched,
- cfg,
- (const struct sockaddr *) &sa,
- sizeof (struct sockaddr),
- GNUNET_NO,
- timeout, &check_localhost_num, cls);
- GNUNET_RESOLVER_hostname_resolve (sched,
- cfg,
- AF_UNSPEC, timeout, &check_hostname, cls);
-}
-static int
-check ()
-{
- int ok = 1 + 2 + 4 + 8;
- pid_t pid;
- char *const argv[] = { "test-resolver-api",
- "-c",
- "test_resolver_api_data.conf",
-#if VERBOSE
- "-L", "DEBUG",
-#endif
- NULL
- };
- struct GNUNET_GETOPT_CommandLineOption options[] = {
- GNUNET_GETOPT_OPTION_END
- };
- pid = GNUNET_OS_start_process ("gnunet-service-resolver",
- "gnunet-service-resolver",
-#if VERBOSE
- "-L", "DEBUG",
-#endif
- "-c", "test_resolver_api_data.conf", NULL);
- GNUNET_assert (GNUNET_OK == GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
- argv, "test-resolver-api", "nohelp",
- options, &run, &ok));
- if (0 != PLIBC_KILL (pid, SIGTERM))
+ /*
+ * Looking up our own fqdn
+ */
+ own_fqdn = GNUNET_RESOLVER_local_fqdn_get ();
+ /* can't really check, only thing we can safely
+ compare against is our own identical logic... */
+ GNUNET_free_non_null (own_fqdn);
+
+ /*
+ * Testing non-local DNS resolution
+ * DNS rootserver to test: a.root-servers.net - 198.41.0.4
+ */
+
+ rootserver = gethostbyname (rootserver_name);
+ if (NULL == rootserver)
+ {
+ /* Error: resolving ip addresses does not work */
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _ ("gethostbyname() could not lookup IP address: %s\n"),
+ hstrerror (h_errno));
+ fprintf (stderr,
+ "%s",
+ "System seems to be off-line, will not run all DNS tests\n");
+ *ok = 0; /* mark test as passing anyway */
+ return;
+ }
+
+ /* Counting returned IP addresses */
+ while (NULL != rootserver->h_addr_list[count_ips])
+ count_ips++;
+ if (count_ips > 1)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "IP received range for root name server, but a root name server has only 1 IP\n");
+ GNUNET_break (0);
+ }
+
+ /* Comparing to resolved address to the address the root name server should have */
+ if (0 !=
+ strcmp (inet_ntoa (*(struct in_addr *) rootserver->h_addr_list[0]),
+ ROOTSERVER_IP))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "IP received and IP for root name server differ\n");
+ GNUNET_break (0);
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ "System's own forward name resolution is working\n");
+ /* Resolve the same using GNUNET */
+ GNUNET_RESOLVER_ip_get (ROOTSERVER_NAME, AF_INET, timeout,
+ &check_rootserver_ip, cls);
+ GNUNET_RESOLVER_ip_get (ROOTSERVER_NAME, AF_INET, timeout,
+ &check_rootserver_ip, cls);
+
+ /*
+ * Success: forward lookups work as expected
+ * Next step: reverse lookups
+ */
+ if (1 != inet_pton (AF_INET,
+ ROOTSERVER_IP,
+ &rootserver_addr))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Could not transform root name server IP address\n");
+ GNUNET_break (0);
+ }
+
+ rootserver =
+ gethostbyaddr ((const void *) &rootserver_addr,
+ sizeof(rootserver_addr),
+ AF_INET);
+ if (NULL == rootserver)
+ {
+ /* Error: resolving IP addresses does not work */
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "gethostbyaddr() could not lookup hostname: %s\n",
+ hstrerror (h_errno));
+ disable_rootserver_check = GNUNET_YES;
+ }
+ else
+ {
+ if (0 != strcmp (rootserver->h_name,
+ ROOTSERVER_NAME))
{
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
- ok = 1;
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Received hostname and hostname for root name server differ\n");
+ disable_rootserver_check = GNUNET_YES;
}
- GNUNET_OS_process_wait (pid);
- if (ok != 0)
- fprintf (stderr, "Missed some resolutions: %u\n", ok);
- return ok;
+ }
+
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ "System's own reverse name resolution is working\n");
+ /* Resolve the same using GNUNET */
+ memset (&sa, 0, sizeof(sa));
+ sa.sin_family = AF_INET;
+#if HAVE_SOCKADDR_IN_SIN_LEN
+ sa.sin_len = (u_char) sizeof(sa);
+#endif
+ inet_aton (ROOTSERVER_IP, &sa.sin_addr);
+
+ GNUNET_RESOLVER_hostname_get ((const struct sockaddr *) &sa,
+ sizeof(struct sockaddr), GNUNET_YES, timeout,
+ &check_rootserver_name, cls);
+
+ memset (&sa, 0, sizeof(sa));
+ sa.sin_family = AF_INET;
+#if HAVE_SOCKADDR_IN_SIN_LEN
+ sa.sin_len = (u_char) sizeof(sa);
+#endif
+ sa.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
+
+ GNUNET_RESOLVER_ip_get ("localhost", AF_INET, timeout, &check_127, cls);
+ GNUNET_RESOLVER_hostname_get ((const struct sockaddr *) &sa,
+ sizeof(struct sockaddr), GNUNET_YES, timeout,
+ &check_localhost, cls);
+
+ GNUNET_RESOLVER_hostname_get ((const struct sockaddr *) &sa,
+ sizeof(struct sockaddr), GNUNET_NO, timeout,
+ &check_localhost_num, cls);
+ GNUNET_RESOLVER_hostname_resolve (AF_UNSPEC, timeout, &check_hostname, cls);
}
+
int
main (int argc, char *argv[])
{
- int ret;
+ int ok = 1 + 2 + 4 + 8;
+ char *fn;
+ struct GNUNET_OS_Process *proc;
+ char *const argvx[] = {
+ "test-resolver-api", "-c", "test_resolver_api_data.conf", NULL
+ };
+ struct GNUNET_GETOPT_CommandLineOption options[] =
+ { GNUNET_GETOPT_OPTION_END };
GNUNET_log_setup ("test-resolver-api",
-#if VERBOSE
- "DEBUG",
-#else
"WARNING",
-#endif
NULL);
- ret = check ();
-
- return ret;
+ fn = GNUNET_OS_get_libexec_binary_path ("gnunet-service-resolver");
+ proc = GNUNET_OS_start_process (GNUNET_YES,
+ GNUNET_OS_INHERIT_STD_OUT_AND_ERR,
+ NULL, NULL, NULL,
+ fn,
+ "gnunet-service-resolver",
+ "-c", "test_resolver_api_data.conf", NULL);
+ GNUNET_assert (NULL != proc);
+ GNUNET_free (fn);
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_PROGRAM_run ((sizeof(argvx) / sizeof(char *)) - 1,
+ argvx, "test-resolver-api", "nohelp",
+ options, &run, &ok));
+ if (0 != GNUNET_OS_process_kill (proc, GNUNET_TERM_SIG))
+ {
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
+ ok = 1;
+ }
+ GNUNET_OS_process_wait (proc);
+ GNUNET_OS_process_destroy (proc);
+ proc = NULL;
+ if (0 != ok)
+ fprintf (stderr, "Missed some resolutions: %u\n", ok);
+ return ok;
}
+
/* end of test_resolver_api.c */
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