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
31struct 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
49void listeners_initialise();
50void handle_listeners(fd_set * readfds);
51void set_listener_fds(fd_set * readfds);
52
53struct 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
58struct Listener * get_listener(int type, void* typedata,
59		int (*match)(void*, void*));
60
61void remove_listener(struct Listener* listener);
62
63#endif /* _LISTENER_H */
64