Exemplo n.º 1
0
static void olsr_shutdown(int signo __attribute__ ((unused)))
#endif
{
  struct interface *ifn;
  int exit_value;

  OLSR_PRINTF(1, "Received signal %d - shutting down\n", (int)signo);

#ifdef WIN32
  OLSR_PRINTF(1, "Waiting for the scheduler to stop.\n");

  olsr_win32_end_request = TRUE;

  while (!olsr_win32_end_flag)
  Sleep(100);

  OLSR_PRINTF(1, "Scheduler stopped.\n");
#endif

  /* clear all links and send empty hellos/tcs */
  olsr_reset_all_links();

  /* deactivate fisheye and immediate TCs */
  olsr_cnf->lq_fish = 0;
  for (ifn = ifnet; ifn; ifn = ifn->int_next) {
    ifn->immediate_send_tc = false;
  }
  increase_local_ansn();

  /* send first shutdown message burst */
  olsr_shutdown_messages();

  /* delete all routes */
  olsr_delete_all_kernel_routes();

  /* send second shutdown message burst */
  olsr_shutdown_messages();

  /* now try to cleanup the rest of the mess */
  olsr_delete_all_tc_entries();

  olsr_delete_all_mid_entries();

#ifdef LINUX_NETLINK_ROUTING
  /* trigger gateway selection */
  if (olsr_cnf->smart_gw_active) {
    olsr_cleanup_gateways();
  }

  /* trigger niit static route cleanup */
  if (olsr_cnf->use_niit) {
    olsr_cleanup_niit_routes();
  }

  /* cleanup lo:olsr interface */
  if (olsr_cnf->use_src_ip_routes) {
    olsr_os_localhost_if(&olsr_cnf->main_addr, false);
  }
#endif

  olsr_destroy_parser();

  OLSR_PRINTF(1, "Closing sockets...\n");

  /* front-end IPC socket */
  if (olsr_cnf->ipc_connections > 0) {
    shutdown_ipc();
  }

  /* OLSR sockets */
  for (ifn = ifnet; ifn; ifn = ifn->int_next) {
    close(ifn->olsr_socket);
    close(ifn->send_socket);

#ifdef LINUX_NETLINK_ROUTING
    if (DEF_RT_NONE != olsr_cnf->rt_table_defaultolsr_pri) {
      olsr_os_policy_rule(olsr_cnf->ip_version, olsr_cnf->rt_table_default,
          olsr_cnf->rt_table_defaultolsr_pri, ifn->int_name, false);
    }
#endif
  }

  /* Closing plug-ins */
  olsr_close_plugins();

  /* Reset network settings */
  net_os_restore_ifoptions();

  /* ioctl socket */
  close(olsr_cnf->ioctl_s);

#ifdef LINUX_NETLINK_ROUTING
  if (DEF_RT_NONE != olsr_cnf->rt_table_pri) {
    olsr_os_policy_rule(olsr_cnf->ip_version,
        olsr_cnf->rt_table, olsr_cnf->rt_table_pri, NULL, false);
  }
  if (DEF_RT_NONE != olsr_cnf->rt_table_tunnel_pri) {
    olsr_os_policy_rule(olsr_cnf->ip_version,
        olsr_cnf->rt_table_tunnel, olsr_cnf->rt_table_tunnel_pri, NULL, false);
  }
  if (DEF_RT_NONE != olsr_cnf->rt_table_default_pri) {
    olsr_os_policy_rule(olsr_cnf->ip_version,
        olsr_cnf->rt_table_default, olsr_cnf->rt_table_default_pri, NULL, false);
  }
  close(olsr_cnf->rtnl_s);
  close (olsr_cnf->rt_monitor_socket);
#endif

#if defined __FreeBSD__ || defined __FreeBSD_kernel__ || defined __MacOSX__ || defined __NetBSD__ || defined __OpenBSD__
  /* routing socket */
  close(olsr_cnf->rts);
#endif

  /* Free cookies and memory pools attached. */
  OLSR_PRINTF(0, "Free all memory...\n");
  olsr_delete_all_cookies();

  olsr_syslog(OLSR_LOG_INFO, "%s stopped", olsrd_version);

  OLSR_PRINTF(1, "\n <<<< %s - terminating >>>>\n           http://www.olsr.org\n", olsrd_version);

  exit_value = olsr_cnf->exit_value;
  olsrd_free_cnf(olsr_cnf);

  exit(exit_value);
}
Exemplo n.º 2
0
int MyDialog2::OpenConfigFile(CString PathName)
{
	struct ip_prefix_list *Hna;
	struct olsr_if *Int, *PrevInt;
	struct olsr_msg_params *MsgPar;
	int NumInt = m_InterfaceList.GetItemCount();
	int i;
	CString IntName;
	CString Conv;

	if (Conf != NULL)
		olsrd_free_cnf(Conf);

	if (olsrd_parse_cnf(PathName) < 0)
		return -1;

	Conf = olsr_cnf;

	for (i = 0; i < NumInt; i++)
		m_InterfaceList.SetCheck(i, FALSE);

	for (Int = Conf->interfaces; Int != NULL; Int = Int->next)
	{
		IntName = Int->name;
		IntName.MakeUpper();

		for (i = 0; i < NumInt; i++)
		{
			if (m_InterfaceList.GetItemText(i, 0).Mid(0, 4) == IntName)
				m_InterfaceList.SetCheck(i, TRUE);
		}
	}

	Int = Conf->interfaces;

	MsgPar = &Int->cnf->hello_params;

	Conv.Format("%.2f", MsgPar->emission_interval);
	m_HelloInt.SetWindowText(Conv);

	Conv.Format("%.2f", MsgPar->validity_time);
	m_HelloHold.SetWindowText(Conv);

	MsgPar = &Int->cnf->tc_params;
	
	Conv.Format("%.2f", MsgPar->emission_interval);
	m_TcInt.SetWindowText(Conv);

	Conv.Format("%.2f", MsgPar->validity_time);
	m_TcHold.SetWindowText(Conv);

	MsgPar = &Int->cnf->mid_params;
	
	Conv.Format("%.2f", MsgPar->emission_interval);
	m_MidInt.SetWindowText(Conv);

	Conv.Format("%.2f", MsgPar->validity_time);
	m_MidHold.SetWindowText(Conv);

	MsgPar = &Int->cnf->hna_params;
	
	Conv.Format("%.2f", MsgPar->emission_interval);
	m_HnaInt.SetWindowText(Conv);

	Conv.Format("%.2f", MsgPar->validity_time);
	m_HnaHold.SetWindowText(Conv);

	SetDebugLevel(Conf->debug_level);

	Conv.Format("%.2f", Conf->pollrate);
	m_PollInt.SetWindowText(Conv);

	Conv.Format("%d", Conf->mpr_coverage);
	m_MprCov.SetWindowText(Conv);

	m_TcRed.SetCurSel(Conf->tc_redundancy);

	m_LqAlgo.SetCurSel(m_LqAlgo.FindStringExact(-1, Conf->lq_algorithm));

	m_HystCheck.SetCheck(Conf->use_hysteresis);

	Conv.Format("%.2f", Conf->hysteresis_param.scaling);
	m_HystScaling.SetWindowText(Conv);

	Conv.Format("%.2f", Conf->hysteresis_param.thr_high);
	m_HystThresholdHigh.SetWindowText(Conv);

	Conv.Format("%.2f", Conf->hysteresis_param.thr_low);
	m_HystThresholdLow.SetWindowText(Conv);

	OnHystCheck();

	m_FishEyeCheck.SetCheck(Conf->lq_fish > 0);

	m_EtxCheck.SetCheck(Conf->lq_level > 0);

#if 0
	Conv.Format("%d", Conf->lq_wsize);
	m_EtxWindowSize.SetWindowText(Conv);
#endif

	m_EtxRadio1.SetCheck(Conf->lq_level == 1);
	m_EtxRadio2.SetCheck(Conf->lq_level == 0 || Conf->lq_level == 2);

	OnEtxCheckWorker();

	m_InternetCheck.SetCheck(FALSE);

	for (Hna = Conf->hna_entries; Hna != NULL; Hna = Hna->next)
		if (0 == Hna->net.prefix_len &&
			m_InternetCheck.IsWindowEnabled())
		m_InternetCheck.SetCheck(TRUE);

	PrevInt = NULL;

	for (Int = Conf->interfaces; Int != NULL; Int = Int->next)
	{
		IntName = Int->name;

		if (IntName.CompareNoCase("GUI") == 0)
			break;

		PrevInt = Int;
	}

	if (Int != NULL)
	{
		if (PrevInt == NULL)
			Conf->interfaces = Int->next;

		else
			PrevInt->next = Int->next;

		win32_olsrd_free(Int);
	}

	return 0;
}
Exemplo n.º 3
0
int main(int argc, char *argv[]) {
  struct if_config_options *default_ifcnf;
  char conf_file_name[FILENAME_MAX];
  struct ipaddr_str buf;
  bool loadedConfig = false;
  int i;

#ifdef LINUX_NETLINK_ROUTING
  struct interface *ifn;
#endif

#ifdef WIN32
  WSADATA WsaData;
  size_t len;
#endif

  /* paranoia checks */
  assert(sizeof(uint8_t) == 1);
  assert(sizeof(uint16_t) == 2);
  assert(sizeof(uint32_t) == 4);
  assert(sizeof(int8_t) == 1);
  assert(sizeof(int16_t) == 2);
  assert(sizeof(int32_t) == 4);

  printf("\n *** %s ***\n Build date: %s on %s\n http://www.olsr.org\n\n",
      olsrd_version, build_date, build_host);

  if (argc == 2) {
    if (strcmp(argv[1], "-h") == 0 || strcmp(argv[1], "/?") == 0) {
      print_usage(false);
      exit(0);
    }
    if (strcmp(argv[1], "-v") == 0) {
      exit(0);
    }
  }

  debug_handle = stdout;
#ifndef WIN32
  olsr_argv = argv;
#endif
  setbuf(stdout, NULL);
  setbuf(stderr, NULL);

#ifndef WIN32
  /* Check if user is root */
  if (geteuid()) {
    fprintf(stderr, "You must be root(uid = 0) to run olsrd!\nExiting\n\n");
    exit(EXIT_FAILURE);
  }
#else
  DisableIcmpRedirects();

  if (WSAStartup(0x0202, &WsaData)) {
    fprintf(stderr, "Could not initialize WinSock.\n");
    olsr_exit(__func__, EXIT_FAILURE);
  }
#endif

  /* Open syslog */
  olsr_openlog("olsrd");

  /* Using PID as random seed */
  srandom(getpid());

  /* Init widely used statics */
  memset(&all_zero, 0, sizeof(union olsr_ip_addr));

  /*
   * Set configfile name and
   * check if a configfile name was given as parameter
   */
#ifdef WIN32
#ifndef WINCE
  GetWindowsDirectory(conf_file_name, FILENAME_MAX - 11);
#else
  conf_file_name[0] = 0;
#endif

  len = strlen(conf_file_name);

  if (len == 0 || conf_file_name[len - 1] != '\\')
  conf_file_name[len++] = '\\';

  strscpy(conf_file_name + len, "olsrd.conf", sizeof(conf_file_name) - len);
#else
  strscpy(conf_file_name, OLSRD_GLOBAL_CONF_FILE, sizeof(conf_file_name));
#endif

  olsr_cnf = olsrd_get_default_cnf();
  for (i=1; i < argc-1;) {
    if (strcmp(argv[i], "-f") == 0) {
      loadedConfig = true;

      if (olsrmain_load_config(argv[i+1]) < 0) {
        exit(EXIT_FAILURE);
      }

      if (i+2 < argc) {
        memmove(&argv[i], &argv[i+2], sizeof(*argv) * (argc-i-1));
      }
      argc -= 2;
    }
    else {
      i++;
    }
  }

  /*
   * set up configuration prior to processing commandline options
   */
  if (!loadedConfig && olsrmain_load_config(conf_file_name) == 0) {
    loadedConfig = true;
  }

  if (!loadedConfig) {
    olsrd_free_cnf(olsr_cnf);
    olsr_cnf = olsrd_get_default_cnf();
  }

  default_ifcnf = get_default_if_config();
  if (default_ifcnf == NULL) {
    fprintf(stderr, "No default ifconfig found!\n");
    exit(EXIT_FAILURE);
  }

  /* Initialize timers */
  olsr_init_timers();

  /*
   * Process olsrd options.
   */
  if (olsr_process_arguments(argc, argv, olsr_cnf, default_ifcnf) < 0) {
    print_usage(true);
    olsr_exit(__func__, EXIT_FAILURE);
  }

  /*
   * Set configuration for command-line specified interfaces
   */
  set_default_ifcnfs(olsr_cnf->interfaces, default_ifcnf);

  /* free the default ifcnf */
  free(default_ifcnf);

  /* Sanity check configuration */
  if (olsrd_sanity_check_cnf(olsr_cnf) < 0) {
    fprintf(stderr, "Bad configuration!\n");
    olsr_exit(__func__, EXIT_FAILURE);
  }

  /*
   * Establish file lock to prevent multiple instances
   */
  if (olsr_cnf->lock_file) {
    strscpy(lock_file_name, olsr_cnf->lock_file, sizeof(lock_file_name));
  } else {
    size_t l;
#ifdef DEFAULT_LOCKFILE_PREFIX
    strscpy(lock_file_name, DEFAULT_LOCKFILE_PREFIX, sizeof(lock_file_name));
#else
    strscpy(lock_file_name, conf_file_name, sizeof(lock_file_name));
#endif
    l = strlen(lock_file_name);
    snprintf(&lock_file_name[l], sizeof(lock_file_name) - l, "-ipv%d.lock",
        olsr_cnf->ip_version == AF_INET ? 4 : 6);
  }

  /*
   * Print configuration
   */
  if (olsr_cnf->debug_level > 1) {
    olsrd_print_cnf(olsr_cnf);
  }

  def_timer_ci = olsr_alloc_cookie("Default Timer Cookie", OLSR_COOKIE_TYPE_TIMER);

  /*
   * socket for ioctl calls
   */
  olsr_cnf->ioctl_s = socket(olsr_cnf->ip_version, SOCK_DGRAM, 0);
  if (olsr_cnf->ioctl_s < 0) {
#ifndef WIN32
    olsr_syslog(OLSR_LOG_ERR, "ioctl socket: %m");
#endif
    olsr_exit(__func__, 0);
  }
#ifdef LINUX_NETLINK_ROUTING
  olsr_cnf->rtnl_s = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE);
  if (olsr_cnf->rtnl_s < 0) {
    olsr_syslog(OLSR_LOG_ERR, "rtnetlink socket: %m");
    olsr_exit(__func__, 0);
  }
  fcntl(olsr_cnf->rtnl_s, F_SETFL, O_NONBLOCK);

  if ((olsr_cnf->rt_monitor_socket = rtnetlink_register_socket(RTMGRP_LINK)) < 0) {
    olsr_syslog(OLSR_LOG_ERR, "rtmonitor socket: %m");
    olsr_exit(__func__, 0);
  }
#endif

  /*
   * create routing socket
   */
#if defined __FreeBSD__ || __FreeBSD_kernel__ || defined __MacOSX__ || defined __NetBSD__ || defined __OpenBSD__
  olsr_cnf->rts = socket(PF_ROUTE, SOCK_RAW, 0);
  if (olsr_cnf->rts < 0) {
    olsr_syslog(OLSR_LOG_ERR, "routing socket: %m");
    olsr_exit(__func__, 0);
  }
#endif

#ifdef LINUX_NETLINK_ROUTING
  /* initialize gateway system */
  if (olsr_cnf->smart_gw_active) {
    if (olsr_init_gateways()) {
      olsr_exit("Cannot initialize gateway tunnels", 1);
    }
  }

  /* initialize niit if index */
  if (olsr_cnf->use_niit) {
    olsr_init_niit();
  }
#endif

  /* Init empty TC timer */
  set_empty_tc_timer(GET_TIMESTAMP(0));

  /* enable ip forwarding on host */
  /* Disable redirects globally */
#ifndef WIN32
  net_os_set_global_ifoptions();
#endif

  /* Initialize parser */
  olsr_init_parser();

  /* Initialize route-exporter */
  olsr_init_export_route();

  /* Initialize message sequencnumber */
  init_msg_seqno();

  /* Initialize dynamic willingness calculation */
  olsr_init_willingness();

  /*
   *Set up willingness/APM
   */
  if (olsr_cnf->willingness_auto) {
    if (apm_init() < 0) {
      OLSR_PRINTF(1, "Could not read APM info - setting default willingness(%d)\n", WILL_DEFAULT);

      olsr_syslog(OLSR_LOG_ERR,
          "Could not read APM info - setting default willingness(%d)\n",
          WILL_DEFAULT);

      olsr_cnf->willingness_auto = 0;
      olsr_cnf->willingness = WILL_DEFAULT;
    } else {
      olsr_cnf->willingness = olsr_calculate_willingness();

      OLSR_PRINTF(1, "Willingness set to %d - next update in %.1f secs\n", olsr_cnf->willingness, olsr_cnf->will_int);
    }
  }

  /* Initialize net */
  init_net();

  /* Initializing networkinterfaces */
  if (!olsr_init_interfacedb()) {
    if (olsr_cnf->allow_no_interfaces) {
      fprintf(
          stderr,
          "No interfaces detected! This might be intentional, but it also might mean that your configuration is fubar.\nI will continue after 5 seconds...\n");
      olsr_startup_sleep(5);
    } else {
      fprintf(stderr, "No interfaces detected!\nBailing out!\n");
      olsr_exit(__func__, EXIT_FAILURE);
    }
  }

  olsr_do_startup_sleep();

  /* Print heartbeat to stdout */

#if !defined WINCE
  if (olsr_cnf->debug_level > 0 && isatty(STDOUT_FILENO)) {
    olsr_start_timer(STDOUT_PULSE_INT, 0, OLSR_TIMER_PERIODIC,
        &generate_stdout_pulse, NULL, 0);
  }
#endif

  /* Initialize the IPC socket */

  if (olsr_cnf->ipc_connections > 0) {
    ipc_init();
  }
  /* Initialisation of different tables to be used. */
  olsr_init_tables();

  /* daemon mode */
#ifndef WIN32
  if (olsr_cnf->debug_level == 0 && !olsr_cnf->no_fork) {
    printf("%s detaching from the current process...\n", olsrd_version);
    if (daemon(0, 0) < 0) {
      printf("daemon(3) failed: %s\n", strerror(errno));
      exit(EXIT_FAILURE);
    }
  }
#endif

  /*
   * Create locking file for olsrd, will be cleared after olsrd exits
   */
  for (i=5; i>=0; i--) {
    OLSR_PRINTF(3, "Trying to get olsrd lock...\n");
    if (olsr_create_lock_file(i > 0) == 0) {
      /* lock sucessfully created */
      break;
    }
    sleep (1);
  }

  /* Load plugins */
  olsr_load_plugins();

  OLSR_PRINTF(1, "Main address: %s\n\n", olsr_ip_to_string(&buf, &olsr_cnf->main_addr));

#ifdef LINUX_NETLINK_ROUTING
  /* create policy routing priorities if necessary */
  if (DEF_RT_NONE != olsr_cnf->rt_table_pri) {
    olsr_os_policy_rule(olsr_cnf->ip_version,
        olsr_cnf->rt_table, olsr_cnf->rt_table_pri, NULL, true);
  }
  if (DEF_RT_NONE != olsr_cnf->rt_table_tunnel_pri) {
    olsr_os_policy_rule(olsr_cnf->ip_version,
        olsr_cnf->rt_table_tunnel, olsr_cnf->rt_table_tunnel_pri, NULL, true);
  }
  if (DEF_RT_NONE != olsr_cnf->rt_table_default_pri) {
    olsr_os_policy_rule(olsr_cnf->ip_version,
        olsr_cnf->rt_table_default, olsr_cnf->rt_table_default_pri, NULL, true);
  }

  /* OLSR sockets */
  if (DEF_RT_NONE != olsr_cnf->rt_table_defaultolsr_pri) {
    for (ifn = ifnet; ifn; ifn = ifn->int_next) {
      olsr_os_policy_rule(olsr_cnf->ip_version, olsr_cnf->rt_table_default,
          olsr_cnf->rt_table_defaultolsr_pri, ifn->int_name, true);
    }
  }

  /* trigger gateway selection */
  if (olsr_cnf->smart_gw_active) {
    olsr_trigger_inetgw_startup();
  }

  /* trigger niit static route setup */
  if (olsr_cnf->use_niit) {
    olsr_setup_niit_routes();
  }

  /* create lo:olsr interface */
  if (olsr_cnf->use_src_ip_routes) {
    olsr_os_localhost_if(&olsr_cnf->main_addr, true);
  }
#endif

  /* Start syslog entry */
  olsr_syslog(OLSR_LOG_INFO, "%s successfully started", olsrd_version);

  /*
   *signal-handlers
   */

  /* ctrl-C and friends */
#ifdef WIN32
#ifndef WINCE
  SetConsoleCtrlHandler(SignalHandler, true);
#endif
#else
  signal(SIGHUP, olsr_reconfigure);
  signal(SIGINT, olsr_shutdown);
  signal(SIGQUIT, olsr_shutdown);
  signal(SIGILL, olsr_shutdown);
  signal(SIGABRT, olsr_shutdown);
  //  signal(SIGSEGV, olsr_shutdown);
  signal(SIGTERM, olsr_shutdown);
  signal(SIGPIPE, SIG_IGN);
  // Ignoring SIGUSR1 and SIGUSR1 by default to be able to use them in plugins
  signal(SIGUSR1, SIG_IGN);
  signal(SIGUSR2, SIG_IGN);
#endif

  link_changes = false;

  /* Starting scheduler */
  olsr_scheduler();

  /* Like we're ever going to reach this ;-) */
  return 1;
} /* main */