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 29 struct 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 */ 47 struct TCPFwdList { 48 49 const unsigned char* connectaddr; 50 unsigned int connectport; 51 unsigned int listenport; 52 struct TCPFwdList * next; 53 54 }; 55 56 /* Server */ 57 void recv_msg_global_request_remotetcp(); 58 extern const struct ChanType svr_chan_tcpdirect; 59 60 /* Client */ 61 void setup_localtcp(); 62 void setup_remotetcp(); 63 extern const struct ChanType cli_chan_tcpremote; 64 65 /* Common */ 66 int listen_tcpfwd(struct TCPListener* tcpinfo); 67 68 69 #endif 70