openvpn/ping-inline.h

   1 /*
   2  *  OpenVPN -- An application to securely tunnel IP networks
   3  *             over a single TCP/UDP port, with support for SSL/TLS-based
   4  *             session authentication and key exchange,
   5  *             packet encryption, packet authentication, and
   6  *             packet compression.
   7  *
   8  *  Copyright (C) 2002-2005 OpenVPN Solutions LLC <info@openvpn.net>
   9  *
  10  *  This program is free software; you can redistribute it and/or modify
  11  *  it under the terms of the GNU General Public License version 2
  12  *  as published by the Free Software Foundation.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program (see the file COPYING included with this
  21  *  distribution); if not, write to the Free Software Foundation, Inc.,
  22  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23  */
  24
  25 #ifndef PING_INLINE_H
  26 #define PING_INLINE_H
  27
  28 /*
  29  * Should we exit or restart due to ping (or other authenticated packet)
  30  * not received in n seconds?
  31  */
  32 static inline void
  33 check_ping_restart (struct context *c)
  34 {
  35   void check_ping_restart_dowork (struct context *c);
  36   if (c->options.ping_rec_timeout
  37       && event_timeout_trigger (&c->c2.ping_rec_interval,
  38                                 &c->c2.timeval,
  39                                 (!c->options.ping_timer_remote
  40                                  || addr_defined (&c->c1.link_socket_addr.actual))
  41                                 ? ETT_DEFAULT : 15))
  42     check_ping_restart_dowork (c);
  43 }
  44
  45 /*
  46  * Should we ping the remote?
  47  */
  48 static inline void
  49 check_ping_send (struct context *c)
  50 {
  51   void check_ping_send_dowork (struct context *c);
  52   if (c->options.ping_send_timeout
  53       && event_timeout_trigger (&c->c2.ping_send_interval,
  54                                 &c->c2.timeval,
  55                                 !TO_LINK_DEF(c) ? ETT_DEFAULT : 1))
  56     check_ping_send_dowork (c);
  57 }
  58
  59 #endif