/*
 *  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) 2002-2010 OpenVPN Technologies, 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 (see the file COPYING included with this
 *  distribution); if not, write to the Free Software Foundation, Inc.,
 *  59 Temple Place, Suite 330, Boston, MA  02111-1307  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 int 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
#endif
