1 /* 2 * Dropbear SSH 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 25 #ifndef _LISTENER_H 26 #define _LISTENER_H 27 28 #define MAX_LISTENERS 20 29 #define LISTENER_EXTEND_SIZE 1 30 31 struct Listener { 32 33 int socks[DROPBEAR_MAX_SOCKS]; 34 unsigned int nsocks; 35 36 int index; /* index in the array of listeners */ 37 38 void (*acceptor)(struct Listener*, int sock); 39 void (*cleanup)(struct Listener*); 40 41 int type; /* CHANNEL_ID_X11, CHANNEL_ID_AGENT, 42 CHANNEL_ID_TCPDIRECT (for clients), 43 CHANNEL_ID_TCPFORWARDED (for servers) */ 44 45 void *typedata; 46 47 }; 48 49 void listeners_initialise(); 50 void handle_listeners(fd_set * readfds); 51 void set_listener_fds(fd_set * readfds); 52 53 struct Listener* new_listener(int socks[], unsigned int nsocks, 54 int type, void* typedata, 55 void (*acceptor)(struct Listener* listener, int sock), 56 void (*cleanup)(struct Listener*)); 57 58 struct Listener * get_listener(int type, void* typedata, 59 int (*match)(void*, void*)); 60 61 void remove_listener(struct Listener* listener); 62 63 #endif /* _LISTENER_H */ 64