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