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path: root/src/hostlist/test_gnunet_daemon_hostlist.c
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/*
     This file is part of GNUnet
     Copyright (C) 2009, 2016 GNUnet e.V.

     GNUnet is free software: you can redistribute it and/or modify it
     under the terms of the GNU Affero General Public License as published
     by the Free Software Foundation, either version 3 of the License,
     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
     Affero General Public License for more details.

     You should have received a copy of the GNU Affero General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.

     SPDX-License-Identifier: AGPL3.0-or-later
 */
/**
 * @file hostlist/test_gnunet_daemon_hostlist.c
 * @brief test for gnunet_daemon_hostslist.c
 * @author Christian Grothoff
 */
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_arm_service.h"
#include "gnunet_transport_service.h"
#include "gnunet_transport_hello_service.h"


/**
 * How long until we give up on transmitting the message?
 */
#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 150)

static int ok;

static struct GNUNET_SCHEDULER_Task *timeout_task;

struct PeerContext
{
  struct GNUNET_CONFIGURATION_Handle *cfg;
  struct GNUNET_TRANSPORT_CoreHandle *th;
  struct GNUNET_MessageHeader *hello;
  struct GNUNET_TRANSPORT_HelloGetHandle *ghh;
  struct GNUNET_OS_Process *arm_proc;
};

static struct PeerContext p1;

static struct PeerContext p2;


static void
clean_up (void *cls)
{
  if (NULL != p1.th)
  {
    if (NULL != p1.ghh)
    {
      GNUNET_TRANSPORT_hello_get_cancel (p1.ghh);
      p1.ghh = NULL;
    }
    GNUNET_TRANSPORT_core_disconnect (p1.th);
    p1.th = NULL;
  }
  if (NULL != p2.th)
  {
    if (NULL != p2.ghh)
    {
      GNUNET_TRANSPORT_hello_get_cancel (p2.ghh);
      p2.ghh = NULL;
    }
    GNUNET_TRANSPORT_core_disconnect (p2.th);
    p2.th = NULL;
  }
  GNUNET_SCHEDULER_shutdown ();
}


/**
 * Timeout, give up.
 */
static void
timeout_error (void *cls)
{
  timeout_task = NULL;
  GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
              "Timeout trying to connect peers, test failed.\n");
  clean_up (NULL);
}


/**
 * Function called to notify transport users that another
 * peer connected to us.
 *
 * @param cls closure
 * @param peer the peer that connected
 * @param mq message queue to send messages to the peer
 */
static void *
notify_connect (void *cls,
                const struct GNUNET_PeerIdentity *peer,
                struct GNUNET_MQ_Handle *mq)
{
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Peers connected, shutting down.\n");
  ok = 0;
  if (NULL != timeout_task)
  {
    GNUNET_SCHEDULER_cancel (timeout_task);
    timeout_task = NULL;
  }
  GNUNET_SCHEDULER_add_now (&clean_up, NULL);
  return NULL;
}


static void
process_hello (void *cls, const struct GNUNET_MessageHeader *message)
{
  struct PeerContext *p = cls;

  GNUNET_TRANSPORT_hello_get_cancel (p->ghh);
  p->ghh = NULL;
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "Received HELLO, starting hostlist service.\n");
}


static void
setup_peer (struct PeerContext *p, const char *cfgname)
{
  char *binary;

  binary = GNUNET_OS_get_libexec_binary_path ("gnunet-service-arm");
  p->cfg = GNUNET_CONFIGURATION_create ();
  p->arm_proc = GNUNET_OS_start_process (GNUNET_YES,
                                         GNUNET_OS_INHERIT_STD_OUT_AND_ERR,
                                         NULL,
                                         NULL,
                                         NULL,
                                         binary,
                                         "gnunet-service-arm",
                                         "-c",
                                         cfgname,
                                         NULL);
  GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (p->cfg, cfgname));
  p->th = GNUNET_TRANSPORT_core_connect (p->cfg,
                                         NULL,
                                         NULL,
                                         p,
                                         &notify_connect,
                                         NULL,
                                         NULL);
  GNUNET_assert (NULL != p->th);
  p->ghh = GNUNET_TRANSPORT_hello_get (p->cfg,
                                       GNUNET_TRANSPORT_AC_ANY,
                                       &process_hello,
                                       p);
  GNUNET_free (binary);
}


static void
waitpid_task (void *cls)
{
  struct PeerContext *p = cls;

  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Killing ARM process.\n");
  if (0 != GNUNET_OS_process_kill (p->arm_proc, GNUNET_TERM_SIG))
    GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
  if (GNUNET_OK != GNUNET_OS_process_wait (p->arm_proc))
    GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "waitpid");
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "ARM process %u stopped\n",
              GNUNET_OS_process_get_pid (p->arm_proc));
  GNUNET_OS_process_destroy (p->arm_proc);
  p->arm_proc = NULL;
  GNUNET_CONFIGURATION_destroy (p->cfg);
}


static void
stop_arm (struct PeerContext *p)
{
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Asking ARM to stop core service\n");
  GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS, &waitpid_task, p);
}


/**
 * Try again to connect to transport service.
 */
static void
shutdown_task (void *cls)
{
  stop_arm (&p1);
  stop_arm (&p2);
}


static void
run (void *cls,
     char *const *args,
     const char *cfgfile,
     const struct GNUNET_CONFIGURATION_Handle *cfg)
{
  GNUNET_assert (ok == 1);
  ok++;
  timeout_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT, &timeout_error, NULL);
  GNUNET_SCHEDULER_add_shutdown (&shutdown_task, NULL);
  setup_peer (&p1, "test_gnunet_daemon_hostlist_peer1.conf");
  setup_peer (&p2, "test_gnunet_daemon_hostlist_peer2.conf");
}


static int
check ()
{
  char *const argv[] = { "test-gnunet-daemon-hostlist",
                         "-c",
                         "test_gnunet_daemon_hostlist_data.conf",
                         NULL };
  struct GNUNET_GETOPT_CommandLineOption options[] =
  { GNUNET_GETOPT_OPTION_END };

  ok = 1;
  GNUNET_PROGRAM_run ((sizeof(argv) / sizeof(char *)) - 1,
                      argv,
                      "test-gnunet-daemon-hostlist",
                      "nohelp",
                      options,
                      &run,
                      &ok);
  return ok;
}


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

  GNUNET_DISK_purge_cfg_dir ("test_gnunet_daemon_hostlist_peer1.conf",
                             "GNUNET_TEST_HOME");
  GNUNET_DISK_purge_cfg_dir ("test_gnunet_daemon_hostlist_peer2.conf",
                             "GNUNET_TEST_HOME");
  GNUNET_DISK_purge_cfg_dir ("test_gnunet_daemon_hostlist_data.conf",
                             "GNUNET_TEST_HOME");
  GNUNET_log_setup ("test-gnunet-daemon-hostlist", "WARNING", NULL);
  ret = check ();
  GNUNET_DISK_purge_cfg_dir ("test_gnunet_daemon_hostlist_peer1.conf",
                             "GNUNET_TEST_HOME");
  GNUNET_DISK_purge_cfg_dir ("test_gnunet_daemon_hostlist_peer2.conf",
                             "GNUNET_TEST_HOME");
  GNUNET_DISK_purge_cfg_dir ("test_gnunet_daemon_hostlist_data.conf",
                             "GNUNET_TEST_HOME");
  return ret;
}

/* end of test_gnunet_daemon_hostlist.c */