1/*
2 * Dropbear - a SSH2 server
3 *
4 * Copyright (c) 2002,2003 Matt Johnston
5 * All rights reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE. */
24#ifndef _TCPFWD_H
25#define _TCPFWD_H
26
27#include "channel.h"
28
29struct TCPListener {
30
31	/* For a direct-tcpip request, it's the addr/port we want the other
32	 * end to connect to */
33	unsigned char *sendaddr;
34	unsigned int sendport;
35
36	/* This is the address/port that we listen on. The address has special
37	 * meanings as per the rfc, "" for all interfaces, "localhost" for
38	 * localhost, or a normal interface name. */
39	unsigned char *listenaddr;
40	unsigned int listenport;
41
42	const struct ChanType *chantype;
43	enum {direct, forwarded} tcp_type;
44};
45
46/* A link in a list of forwards */
47struct TCPFwdList {
48
49	const unsigned char* connectaddr;
50	unsigned int connectport;
51	unsigned int listenport;
52	struct TCPFwdList * next;
53
54};
55
56/* Server */
57void recv_msg_global_request_remotetcp();
58extern const struct ChanType svr_chan_tcpdirect;
59
60/* Client */
61void setup_localtcp();
62void setup_remotetcp();
63extern const struct ChanType cli_chan_tcpremote;
64
65/* Common */
66int listen_tcpfwd(struct TCPListener* tcpinfo);
67
68
69#endif
70