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_common.h"
38 #include "gnunet_util_lib.h"
39 #include "gnunet_program_lib.h"
40 #include "gnunet_scheduler_lib.h"
41 #include "gnunet_nat_lib.h"
45 * Time to wait before stopping NAT, in seconds
47 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5)
51 * Function called on each address that the NAT service
52 * believes to be valid for the transport.
55 addr_callback (void *cls, int add_remove, const struct sockaddr *addr,
58 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Address changed: %s `%s' (%u bytes)\n",
59 add_remove == GNUNET_YES ? "added" : "removed", GNUNET_a2s (addr,
61 (unsigned int) addrlen);
66 * Function that terminates the test.
69 stop (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
71 struct GNUNET_NAT_Handle *nat = cls;
73 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Stopping NAT and quitting...\n");
74 GNUNET_NAT_unregister (nat);
80 struct sockaddr *addr;
86 * Return the address of the default interface,
87 * or any interface with a valid address if the default is not valid
89 * @param cls the 'struct addr_cls'
90 * @param name name of the interface
91 * @param isDefault do we think this may be our default interface
92 * @param addr address of the interface
93 * @param addrlen number of bytes in addr
94 * @return GNUNET_OK to continue iterating
97 process_if (void *cls, const char *name, int isDefault,
98 const struct sockaddr *addr, const struct sockaddr *broadcast_addr,
99 const struct sockaddr *netmask, socklen_t addrlen)
101 struct addr_cls *data = cls;
105 GNUNET_free_non_null (data->addr);
106 data->addr = GNUNET_malloc (addrlen);
107 memcpy (data->addr, addr, addrlen);
108 data->addrlen = addrlen;
110 return GNUNET_SYSERR;
116 * Main function run with scheduler.
119 run (void *cls, char *const *args, const char *cfgfile,
120 const struct GNUNET_CONFIGURATION_Handle *cfg)
122 struct GNUNET_NAT_Handle *nat;
123 struct addr_cls data;
124 struct sockaddr *addr;
127 GNUNET_OS_network_interfaces_list (process_if, &data);
128 if (NULL == data.addr)
130 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
131 "Could not find a valid interface address!\n");
132 exit (GNUNET_SYSERR);
135 GNUNET_assert (addr->sa_family == AF_INET || addr->sa_family == AF_INET6);
136 if (addr->sa_family == AF_INET)
137 ((struct sockaddr_in *) addr)->sin_port = htons (2086);
139 ((struct sockaddr_in6 *) addr)->sin6_port = htons (2086);
141 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
142 "Requesting NAT redirection from address %s...\n",
143 GNUNET_a2s (addr, data.addrlen));
145 nat = GNUNET_NAT_register (cfg, GNUNET_YES /* tcp */ ,
146 2086, 1, (const struct sockaddr **) &addr,
147 &data.addrlen, &addr_callback, NULL, NULL);
149 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &stop, nat);
154 main (int argc, char *const argv[])
156 struct GNUNET_GETOPT_CommandLineOption options[] = {
157 GNUNET_GETOPT_OPTION_END
160 char *const argv_prog[] = {
163 "test_nat_data.conf",
166 GNUNET_log_setup ("test-nat",
169 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
170 "Testing NAT library, timeout set to %d seconds\n", TIMEOUT);
171 GNUNET_PROGRAM_run (3, argv_prog, "test-nat", "nohelp", options, &run, NULL);
175 /* end of test_nat.c */