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) 2002-2010 OpenVPN Technologies, Inc. <sales@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 */
32static inline void
33check_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				 || link_socket_actual_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 */
48static inline void
49check_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
60