/*
  *  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.
  *

  *  Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net>

  *
  *  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; if not, write to the Free Software Foundation, Inc.,
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

  */
 
 #ifndef PS_H
 #define PS_H
 
 #if PORT_SHARE
 
 #include "basic.h"
 #include "buffer.h"
 #include "ssl.h"
 
 typedef void (*post_fork_cleanup_func_t)(void *arg);
 
 struct port_share {

     /* Foreground's socket to background process */
     socket_descriptor_t foreground_fd;

     /* Process ID of background process */
     pid_t background_pid;

 };
 
 extern struct port_share *port_share;
 

 struct port_share *port_share_open(const char *host,
                                    const char *port,
                                    const int max_initial_buf,
                                    const char *journal_dir);

 void port_share_close(struct port_share *ps);

 void port_share_abort(struct port_share *ps);

 bool is_openvpn_protocol(const struct buffer *buf);

 void port_share_redirect(struct port_share *ps, const struct buffer *head, socket_descriptor_t sd);
 
 #endif /* if PORT_SHARE */
 #endif /* ifndef PS_H */