ping-inline.h
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 /*
  *  OpenVPN -- An application to securely tunnel IP networks
  *             over a single TCP/UDP port, with support for SSL/TLS-based
  *             session authentication and key exchange,
  *             packet encryption, packet authentication, and
  *             packet compression.
  *
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  *  Copyright (C) 2002-2009 OpenVPN Technologies, Inc. <sales@openvpn.net>
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  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License version 2
  *  as published by the Free Software Foundation.
  *
  *  This program 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 this program (see the file COPYING included with this
  *  distribution); if not, write to the Free Software Foundation, Inc.,
  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
 #ifndef PING_INLINE_H
 #define PING_INLINE_H
 
 /*
  * Should we exit or restart due to ping (or other authenticated packet)
  * not received in n seconds?
  */
 static inline void
 check_ping_restart (struct context *c)
 {
   void check_ping_restart_dowork (struct context *c);
   if (c->options.ping_rec_timeout
       && event_timeout_trigger (&c->c2.ping_rec_interval,
 				&c->c2.timeval,
 				(!c->options.ping_timer_remote
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 				 || link_socket_actual_defined (&c->c1.link_socket_addr.actual))
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 				? ETT_DEFAULT : 15))
     check_ping_restart_dowork (c);
 }
 
 /*
  * Should we ping the remote?
  */
 static inline void
 check_ping_send (struct context *c)
 {
   void check_ping_send_dowork (struct context *c);
   if (c->options.ping_send_timeout
       && event_timeout_trigger (&c->c2.ping_send_interval,
 				&c->c2.timeval,
 				!TO_LINK_DEF(c) ? ETT_DEFAULT : 1))
     check_ping_send_dowork (c);
 }
 
 #endif