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/*
     This file is part of GNUnet.
     (C) 2009, 2011 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.
*/

/**
 * Testcase for port redirection and public IP address retrieval.
 * This test never fails, because there need to be a NAT box set up for tha *
 * @file nat/test_nat_mini.c
 * @brief Testcase for NAT library - mini
 * @author Christian Grothoff
 *
 * TODO: actually use ARM to start resolver service to make DNS work!
 */

#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"


#define VERBOSE GNUNET_EXTRA_LOGGING

/* Time to wait before stopping NAT, in seconds */
#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5)

/**
 * Function called on each address that the NAT service
 * believes to be valid for the transport.
 */
static void
addr_callback (void *cls, int add_remove, const struct sockaddr *addr,
               socklen_t addrlen)
{
  fprintf (stderr, "Address changed: %s `%s' (%u bytes)\n",
           add_remove == GNUNET_YES ? "added" : "removed", GNUNET_a2s (addr,
                                                                       addrlen),
           (unsigned int) addrlen);
}


/**
 * Function that terminates the test.
 */
static void
stop (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
  struct GNUNET_NAT_MiniHandle *mini = cls;

  GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Stopping NAT and quitting...\n");
  GNUNET_NAT_mini_map_stop (mini);
}

#define PORT 10000

/**
 * Main function run with scheduler.
 */
static void
run (void *cls, char *const *args, const char *cfgfile,
     const struct GNUNET_CONFIGURATION_Handle *cfg)
{
  struct GNUNET_NAT_MiniHandle *mini;

  GNUNET_log (GNUNET_ERROR_TYPE_INFO,
              "Requesting NAT redirection for port %u...\n", PORT);
  mini = GNUNET_NAT_mini_map_start (PORT, GNUNET_YES /* tcp */ ,
                                    &addr_callback, NULL);
  if (NULL == mini)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Could not start UPnP interaction\n");
    return;
  }
  GNUNET_SCHEDULER_add_delayed (TIMEOUT, &stop, mini);
}


int
main (int argc, char *const argv[])
{
  struct GNUNET_GETOPT_CommandLineOption options[] = {
    GNUNET_GETOPT_OPTION_END
  };

  char *const argv_prog[] = {
    "test-nat-mini",
    "-c",
    "test_nat_data.conf",
    "-L",
#if VERBOSE
    "DEBUG",
#else
    "WARNING",
#endif
    NULL
  };

  GNUNET_log_setup ("test-nat-mini",
#if VERBOSE
                    "DEBUG",
#else
                    "WARNING",
#endif
                    NULL);

  GNUNET_log (GNUNET_ERROR_TYPE_INFO,
              "UPnP test for NAT library, timeout set to %d seconds\n",
              TIMEOUT);
  GNUNET_PROGRAM_run (5, argv_prog, "test-nat-mini", "nohelp", options, &run,
                      NULL);
  return 0;
}

/* end of test_nat_mini.c */