gnunet/src/transport/test_transport_api_multiaddress.c

/*
     This file is part of GNUnet.
     (C) 2009, 2010 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 transport/test_transport_api.c
 * @brief base test case for transport implementations
 *
 * This test case serves as a base for tcp, udp, and udp-nat
 * transport test cases.  Based on the executable being run
 * the correct test case will be performed.  Conservation of
 * C code apparently.
 */
#include "platform.h"
#include "gnunet_common.h"
#include "gnunet_hello_lib.h"
#include "gnunet_getopt_lib.h"
#include "gnunet_os_lib.h"
#include "gnunet_program_lib.h"
#include "gnunet_scheduler_lib.h"
#include "gnunet_transport_service.h"
#include "transport.h"
#include "transport-testing.h"

#define VERBOSE GNUNET_NO

#define VERBOSE_ARM GNUNET_NO

#define START_ARM GNUNET_YES

/**
 * How long until we give up on transmitting the message?
 */
#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30)

/**
 * How long until we give up on transmitting the message?
 */
#define TIMEOUT_TRANSMIT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 60)

#define MTYPE 12345

static struct PeerContext p1;

static struct PeerContext p2;

static int ok;

static int is_tcp;

static  GNUNET_SCHEDULER_TaskIdentifier die_task;

static  GNUNET_SCHEDULER_TaskIdentifier tct;


#if VERBOSE
#define OKPP do { ok++; fprintf (stderr, "Now at stage %u at %s:%u\n", ok, __FILE__, __LINE__); } while (0)
#else
#define OKPP do { ok++; } while (0)
#endif



static void
stop_arm (struct PeerContext *p)
{
#if START_ARM
  if (NULL != p->arm_proc)
    {
      if (0 != GNUNET_OS_process_kill (p->arm_proc, SIGTERM))
	GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
      GNUNET_OS_process_wait (p->arm_proc);
      GNUNET_OS_process_close (p->arm_proc);
      p->arm_proc = NULL;
    }
#endif
  GNUNET_CONFIGURATION_destroy (p->cfg);
}




static void
exchange_hello_last (void *cls,
                     const struct GNUNET_MessageHeader *message)
{
  struct PeerContext *me = cls;

  GNUNET_assert (message != NULL);
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "Exchanging HELLO of size %d with peer (%s)!\n", 
	      (int) GNUNET_HELLO_size((const struct GNUNET_HELLO_Message *)message),
	      GNUNET_i2s (&me->id));
  GNUNET_assert (GNUNET_OK ==
                 GNUNET_HELLO_get_id ((const struct GNUNET_HELLO_Message *)
                                      message, &me->id));
  GNUNET_TRANSPORT_offer_hello (p1.th, message, NULL, NULL);
}


static void
exchange_hello (void *cls,
                const struct GNUNET_MessageHeader *message)
{
  struct PeerContext *me = cls;

  GNUNET_assert (message != NULL);
  GNUNET_assert (GNUNET_OK ==
                 GNUNET_HELLO_get_id ((const struct GNUNET_HELLO_Message *)
                                      message, &me->id));
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "Exchanging HELLO of size %d from peer %s!\n", 
	      (int) GNUNET_HELLO_size((const struct GNUNET_HELLO_Message *)message),
	      GNUNET_i2s (&me->id));
  GNUNET_TRANSPORT_offer_hello (p2.th, message, NULL, NULL);
}


static void
end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Disconnecting from transports!\n");
  GNUNET_break (0);
  die_task = GNUNET_SCHEDULER_NO_TASK;
  GNUNET_TRANSPORT_get_hello_cancel (p2.th, &exchange_hello_last, &p2);
  GNUNET_TRANSPORT_get_hello_cancel (p1.th, &exchange_hello, &p1);
  GNUNET_TRANSPORT_disconnect (p1.th);
  GNUNET_TRANSPORT_disconnect (p2.th);
  if (GNUNET_SCHEDULER_NO_TASK != tct)
    {
      GNUNET_SCHEDULER_cancel (tct);
      tct = GNUNET_SCHEDULER_NO_TASK;
    }
  ok = 1;
}

static void
end_normally (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
  ok = 60;
  die_task = GNUNET_SCHEDULER_NO_TASK;
  GNUNET_TRANSPORT_get_hello_cancel (p2.th, &exchange_hello_last, &p2);
  GNUNET_TRANSPORT_get_hello_cancel (p1.th, &exchange_hello, &p1);
  GNUNET_TRANSPORT_disconnect (p1.th);
  GNUNET_TRANSPORT_disconnect (p2.th);
  if (GNUNET_SCHEDULER_NO_TASK != tct)
    {
      GNUNET_SCHEDULER_cancel (tct);
      tct = GNUNET_SCHEDULER_NO_TASK;
    }
  ok = 0;
}

static void
notify_connect (void *cls,
                const struct GNUNET_PeerIdentity *peer,
                const struct GNUNET_TRANSPORT_ATS_Information *ats,
                uint32_t ats_count)
{
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "Peer `%4s' connected to us (%p)!\n", 
	      GNUNET_i2s (peer), 
	      cls);
  if (cls == &p1)
    {
      GNUNET_assert (ok >= 2);
      OKPP;
      OKPP;
      if (GNUNET_SCHEDULER_NO_TASK != die_task)
        GNUNET_SCHEDULER_cancel (die_task);
      if (GNUNET_SCHEDULER_NO_TASK != tct)
        GNUNET_SCHEDULER_cancel (tct);
      tct = GNUNET_SCHEDULER_NO_TASK;
      die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT_TRANSMIT,
					       &end_normally, NULL);
    }
}


static void
notify_disconnect (void *cls,
		   const struct GNUNET_PeerIdentity *peer)
{
   if ( (ok != 60) &&
         (GNUNET_SCHEDULER_NO_TASK != die_task) )
     {
       GNUNET_SCHEDULER_cancel (die_task);
       die_task = GNUNET_SCHEDULER_add_now (&end_badly, NULL);
     }
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "Peer `%4s' disconnected (%p)!\n",
	      GNUNET_i2s (peer), cls);
}


static void
setup_peer (struct PeerContext *p, 
	    const char *cfgname)
{
  p->cfg = GNUNET_CONFIGURATION_create ();

  GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (p->cfg, cfgname));
  if (GNUNET_CONFIGURATION_have_value (p->cfg,"PATHS", "SERVICEHOME"))
    {
      GNUNET_assert (GNUNET_OK == 
		     GNUNET_CONFIGURATION_get_value_string (p->cfg, 
							    "PATHS", "SERVICEHOME", 
							    &p->servicehome));
      GNUNET_DISK_directory_remove (p->servicehome);
    }

#if START_ARM
  p->arm_proc = GNUNET_OS_start_process (NULL, NULL, "gnunet-service-arm",
                                        "gnunet-service-arm",
#if VERBOSE_ARM
                                        "-L", "DEBUG",
#endif
                                        "-c", cfgname, NULL);
#endif
  p->th = GNUNET_TRANSPORT_connect (p->cfg,
                                    NULL, p,
                                    NULL,
                                    &notify_connect, &notify_disconnect);
  GNUNET_assert (p->th != NULL);
}


static void
try_connect (void *cls,
	     const struct GNUNET_SCHEDULER_TaskContext *tc)
{
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
	      "Asking peers to connect...\n");
  /* FIXME: 'pX.id' may still be all-zeros here... */
  GNUNET_TRANSPORT_try_connect (p2.th,
				&p1.id);
  GNUNET_TRANSPORT_try_connect (p1.th,
				&p2.id);
  tct = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
				      &try_connect,
				      NULL);
}


static void
run (void *cls,
     char *const *args,
     const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
{
  GNUNET_assert (ok == 1);
  OKPP;
  die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
					   &end_badly, NULL);
  if (is_tcp)
    {
      setup_peer (&p1, "test_transport_api_multiaddress_tcp_peer1.conf");
      setup_peer (&p2, "test_transport_api_multiaddress_tcp_peer2.conf");
    }
  GNUNET_assert(p1.th != NULL);
  GNUNET_assert(p2.th != NULL);

  GNUNET_TRANSPORT_get_hello (p1.th, &exchange_hello, &p1);
  GNUNET_TRANSPORT_get_hello (p2.th, &exchange_hello_last, &p2);
  tct = GNUNET_SCHEDULER_add_now (&try_connect, NULL);
}

static int
check ()
{
  static char *const argv[] = { "test-transport-api",
    "-c",
    "test_transport_api_data.conf",
#if VERBOSE
    "-L", "DEBUG",
#endif
    NULL
  };
  static struct GNUNET_GETOPT_CommandLineOption options[] = {
    GNUNET_GETOPT_OPTION_END
  };

#if WRITECONFIG
  setTransportOptions("test_transport_api_data.conf");
#endif
  ok = 1;
  GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
                      argv, "test-transport-api", "nohelp",
                      options, &run, &ok);
  stop_arm (&p1);
  stop_arm (&p2);

  if (p1.servicehome != NULL)
    {
      GNUNET_DISK_directory_remove (p1.servicehome);
      GNUNET_free(p1.servicehome);
    }
  if (p2.servicehome != NULL)
    {
      GNUNET_DISK_directory_remove (p2.servicehome);
      GNUNET_free(p2.servicehome);
    }
  return ok;
}


int
main (int argc, char *argv[])
{
  int ret;

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

  if (strstr(argv[0], "tcp") != NULL)
    {
      is_tcp = GNUNET_YES;
    }

  ret = check ();

  return ret;
}

/* end of test_transport_api.c */