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) 2002-2022 OpenVPN 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 along 20 * with this program; if not, write to the Free Software Foundation, Inc., 21 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 22 */ 23 24 #ifndef PS_H 25 #define PS_H 26 27 #if PORT_SHARE 28 29 #include "basic.h" 30 #include "buffer.h" 31 #include "ssl.h" 32 33 typedef void (*post_fork_cleanup_func_t)(void *arg); 34 35 struct port_share { 36 /* Foreground's socket to background process */ 37 socket_descriptor_t foreground_fd; 38 39 /* Process ID of background process */ 40 pid_t background_pid; 41 }; 42 43 extern struct port_share *port_share; 44 45 struct port_share *port_share_open(const char *host, 46 const char *port, 47 const int max_initial_buf, 48 const char *journal_dir); 49 50 void port_share_close(struct port_share *ps); 51 52 void port_share_abort(struct port_share *ps); 53 54 bool is_openvpn_protocol(const struct buffer *buf); 55 56 void port_share_redirect(struct port_share *ps, const struct buffer *head, socket_descriptor_t sd); 57 58 #endif /* if PORT_SHARE */ 59 #endif /* ifndef PS_H */ 60