2 This file is part of GNUnet.
3 (C) 2009, 2011 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.
22 * Testcase for port redirection and public IP address retrieval.
23 * This test never fails, because there need to be a NAT box set up for that.
24 * So we only get IP address and open the 2086 port using any NAT traversal
25 * method available, wait for 30s, close ports and return.
26 * Have a look at the logs and use NMAP to check that it works with your box.
28 * @file nat/test_nat.c
29 * @brief Testcase for NAT library
30 * @author Milan Bouchet-Valat
31 * @author Christian Grothoff
33 * TODO: actually use ARM to start resolver service to make DNS work!
37 #include "gnunet_util_lib.h"
38 #include "gnunet_program_lib.h"
39 #include "gnunet_scheduler_lib.h"
40 #include "gnunet_nat_lib.h"
44 * Time to wait before stopping NAT, in seconds
46 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5)
50 * Function called on each address that the NAT service
51 * believes to be valid for the transport.
54 addr_callback (void *cls, int add_remove, const struct sockaddr *addr,
57 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Address changed: %s `%s' (%u bytes)\n",
58 add_remove == GNUNET_YES ? "added" : "removed", GNUNET_a2s (addr,
60 (unsigned int) addrlen);
65 * Function that terminates the test.
68 stop (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
70 struct GNUNET_NAT_Handle *nat = cls;
72 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Stopping NAT and quitting...\n");
73 GNUNET_NAT_unregister (nat);
79 struct sockaddr *addr;
85 * Return the address of the default interface,
86 * or any interface with a valid address if the default is not valid
88 * @param cls the 'struct addr_cls'
89 * @param name name of the interface
90 * @param isDefault do we think this may be our default interface
91 * @param addr address of the interface
92 * @param addrlen number of bytes in addr
93 * @return GNUNET_OK to continue iterating
96 process_if (void *cls, const char *name, int isDefault,
97 const struct sockaddr *addr, const struct sockaddr *broadcast_addr,
98 const struct sockaddr *netmask, socklen_t addrlen)
100 struct addr_cls *data = cls;
104 GNUNET_free_non_null (data->addr);
105 data->addr = GNUNET_malloc (addrlen);
106 memcpy (data->addr, addr, addrlen);
107 data->addrlen = addrlen;
109 return GNUNET_SYSERR;
115 * Main function run with scheduler.
118 run (void *cls, char *const *args, const char *cfgfile,
119 const struct GNUNET_CONFIGURATION_Handle *cfg)
121 struct GNUNET_NAT_Handle *nat;
122 struct addr_cls data;
123 struct sockaddr *addr;
126 GNUNET_OS_network_interfaces_list (process_if, &data);
127 if (NULL == data.addr)
129 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
130 "Could not find a valid interface address!\n");
131 exit (GNUNET_SYSERR);
134 GNUNET_assert (addr->sa_family == AF_INET || addr->sa_family == AF_INET6);
135 if (addr->sa_family == AF_INET)
136 ((struct sockaddr_in *) addr)->sin_port = htons (2086);
138 ((struct sockaddr_in6 *) addr)->sin6_port = htons (2086);
140 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
141 "Requesting NAT redirection from address %s...\n",
142 GNUNET_a2s (addr, data.addrlen));
144 nat = GNUNET_NAT_register (cfg, GNUNET_YES /* tcp */ ,
145 2086, 1, (const struct sockaddr **) &addr,
146 &data.addrlen, &addr_callback, NULL, NULL);
148 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &stop, nat);
153 main (int argc, char *const argv[])
155 struct GNUNET_GETOPT_CommandLineOption options[] = {
156 GNUNET_GETOPT_OPTION_END
159 char *const argv_prog[] = {
162 "test_nat_data.conf",
165 GNUNET_log_setup ("test-nat",
168 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
169 "Testing NAT library, timeout set to %d seconds\n", TIMEOUT);
170 GNUNET_PROGRAM_run (3, argv_prog, "test-nat", "nohelp", options, &run, NULL);
174 /* end of test_nat.c */