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/*
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 3, 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.
*/
/**
* @file nat/test_nat.c
* @brief Testcase for NAT library
* @author Milan Bouchet-Valat
*/
/**
* Testcase for port redirection and public IP address retrieval.
* This test never fails, because there need to be a NAT box set up for that.
* So we only get IP address and open the 2086 port using any UPnP and NAT-PMP
* routers found, wait for 30s, close ports and return.
* Have a look at the logs and use NMAP to check that it works with your box.
*/
#include "platform.h"
#include "gnunet_common.h"
#include "gnunet_util_lib.h"
#include "gnunet_program_lib.h"
#include "gnunet_scheduler_lib.h"
#include "gnunet_nat_lib.h"
/* Time to wait before stopping NAT, in seconds */
#define TIMEOUT 30
struct addr_cls
{
const struct sockaddr *addr;
socklen_t addrlen;
};
//typedef addr_cls addr_cls;
static void
addr_callback (void *cls, int add_remove,
const struct sockaddr *addr, socklen_t addrlen)
{
GNUNET_log (GNUNET_ERROR_TYPE_INFO, "External address changed: %s %s\n",
add_remove == GNUNET_YES ? "added" : "removed",
GNUNET_a2s (addr, addrlen));
}
static void
stop (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct GNUNET_NAT_Handle *nat = cls;
GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Stopping NAT and quitting...\n");
GNUNET_NAT_unregister (nat);
}
/* Return the address of the default interface,
* or any interface with a valid address if the default is not valid */
static int
process_if (void *cls,
const char *name,
int isDefault,
const struct sockaddr *addr,
socklen_t addrlen)
{
struct addr_cls *data = cls;
if (addr)
{
data->addr = addr;
data->addrlen = addrlen;
}
if (isDefault && addr)
return GNUNET_SYSERR;
else
return GNUNET_OK;
}
static void
run (void *cls,
struct GNUNET_SCHEDULER_Handle *sched,
char *const *args,
const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
{
struct GNUNET_NAT_Handle *nat;
struct addr_cls data;
struct sockaddr *addr;
GNUNET_log_setup ("test-nat", "DEBUG", NULL);
data.addr = NULL;
GNUNET_OS_network_interfaces_list (process_if, &data);
if (!data.addr)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Could not find a valid interface address!\n");
exit (GNUNET_SYSERR);
}
addr = GNUNET_malloc (data.addrlen);
memcpy (addr, data.addr, data.addrlen);
GNUNET_assert (addr->sa_family == AF_INET || addr->sa_family == AF_INET6);
if (addr->sa_family == AF_INET)
((struct sockaddr_in *) addr)->sin_port = htons (2086);
else
((struct sockaddr_in6 *) addr)->sin6_port = htons (2086);
GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Requesting NAT redirection from address %s...\n", GNUNET_a2s (addr, data.addrlen));
nat = GNUNET_NAT_register (sched, addr, data.addrlen, addr_callback, NULL);
GNUNET_free (addr);
GNUNET_SCHEDULER_add_delayed (sched,
GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, TIMEOUT),
stop, nat);
}
int
main (int argc, char *const argv[])
{
struct GNUNET_GETOPT_CommandLineOption options[] = {
GNUNET_GETOPT_OPTION_END
};
GNUNET_log_setup ("test-nat", "DEBUG", NULL);
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
"Testing NAT library, timeout set to %d seconds\n", TIMEOUT);
GNUNET_PROGRAM_run (argc, argv, "test-nat", "nohelp", options, &run, NULL);
return 0;
}
/* end of test_nat.c */
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