blob: 8df08b173973cccf7c46b8329c9cd2a12a834371 [file] [log] [blame]
Damien Miller4af51302000-04-16 11:18:38 +10001/*
2 * Copyright (c) 2000 Markus Friedl. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. All advertising materials mentioning features or use of this software
13 * must display the following acknowledgement:
14 * This product includes software developed by Markus Friedl.
15 * 4. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29#include "includes.h"
Damien Miller6536c7d2000-06-22 21:32:31 +100030RCSID("$OpenBSD: dispatch.c,v 1.3 2000/06/20 01:39:41 markus Exp $");
Damien Miller4af51302000-04-16 11:18:38 +100031#include "ssh.h"
32#include "dispatch.h"
33#include "packet.h"
34
35#define DISPATCH_MIN 0
36#define DISPATCH_MAX 255
37
38dispatch_fn *dispatch[DISPATCH_MAX];
39
40void
41dispatch_protocol_error(int type, int plen)
42{
43 error("Hm, dispatch protocol error: type %d plen %d", type, plen);
44}
45void
46dispatch_init(dispatch_fn *dflt)
47{
48 int i;
49 for (i = 0; i < DISPATCH_MAX; i++)
50 dispatch[i] = dflt;
51}
52void
53dispatch_set(int type, dispatch_fn *fn)
54{
55 dispatch[type] = fn;
56}
57void
58dispatch_run(int mode, int *done)
59{
60 for (;;) {
61 int plen;
62 int type;
63
64 if (mode == DISPATCH_BLOCK) {
65 type = packet_read(&plen);
66 } else {
67 type = packet_read_poll(&plen);
68 if (type == SSH_MSG_NONE)
69 return;
70 }
71 if (type > 0 && type < DISPATCH_MAX && dispatch[type] != NULL)
72 (*dispatch[type])(type, plen);
73 else
74 packet_disconnect("protocol error: rcvd type %d", type);
75 if (done != NULL && *done)
76 return;
77 }
78}