release/src/router/openvpn/ps.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 PS_H
  26 #define PS_H
  27
  28 #if PORT_SHARE
  29
  30 #include "basic.h"
  31 #include "buffer.h"
  32 #include "ssl.h"
  33
  34 typedef void (*post_fork_cleanup_func_t)(void *arg);
  35
  36 struct port_share {
  37   /* Foreground's socket to background process */
  38   socket_descriptor_t foreground_fd;
  39
  40   /* Process ID of background process */
  41   pid_t background_pid;
  42 };
  43
  44 extern struct port_share *port_share;
  45
  46 struct port_share *port_share_open (const char *host,
  47                                     const int port);
  48
  49 void port_share_close (struct port_share *ps);
  50 void port_share_abort (struct port_share *ps);
  51
  52 bool is_openvpn_protocol (const struct buffer *buf);
  53
  54 void port_share_redirect (struct port_share *ps, const struct buffer *head, socket_descriptor_t sd);
  55
  56 #endif
  57 #endif