release/src/router/openvpn/occ-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) 2002-2009 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 OCC_INLINE_H
  26 #define OCC_INLINE_H
  27
  28 #ifdef ENABLE_OCC
  29
  30 /*
  31  * Inline functions
  32  */
  33
  34 static inline int
  35 occ_reset_op ()
  36 {
  37   return -1;
  38 }
  39
  40 /*
  41  * Should we send an OCC_REQUEST message?
  42  */
  43 static inline void
  44 check_send_occ_req (struct context *c)
  45 {
  46   void check_send_occ_req_dowork (struct context *c);
  47   if (event_timeout_defined (&c->c2.occ_interval)
  48       && event_timeout_trigger (&c->c2.occ_interval,
  49                                 &c->c2.timeval,
  50                                 (!TO_LINK_DEF(c) && c->c2.occ_op < 0) ? ETT_DEFAULT : 0))
  51     check_send_occ_req_dowork (c);
  52 }
  53
  54 /*
  55  * Should we send an MTU load test?
  56  */
  57 static inline void
  58 check_send_occ_load_test (struct context *c)
  59 {
  60   void check_send_occ_load_test_dowork (struct context *c);
  61   if (event_timeout_defined (&c->c2.occ_mtu_load_test_interval)
  62       && event_timeout_trigger (&c->c2.occ_mtu_load_test_interval,
  63                                 &c->c2.timeval,
  64                                 (!TO_LINK_DEF(c) && c->c2.occ_op < 0) ? ETT_DEFAULT : 0))
  65     check_send_occ_load_test_dowork (c);
  66 }
  67
  68 /*
  69  * Should we send an OCC message?
  70  */
  71 static inline void
  72 check_send_occ_msg (struct context *c)
  73 {
  74   void check_send_occ_msg_dowork (struct context *c);
  75   if (c->c2.occ_op >= 0)
  76     {
  77       if (!TO_LINK_DEF(c))
  78         check_send_occ_msg_dowork (c);
  79       else
  80         tv_clear (&c->c2.timeval);  /* ZERO-TIMEOUT */
  81     }
  82 }
  83
  84 #endif
  85 #endif