| Damien Miller | 4af5130 | 2000-04-16 11:18:38 +1000 | [diff] [blame] | 1 | /* |
| 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 Miller | 6536c7d | 2000-06-22 21:32:31 +1000 | [diff] [blame] | 30 | RCSID("$OpenBSD: dispatch.c,v 1.3 2000/06/20 01:39:41 markus Exp $"); |
| Damien Miller | 4af5130 | 2000-04-16 11:18:38 +1000 | [diff] [blame] | 31 | #include "ssh.h" |
| 32 | #include "dispatch.h" |
| 33 | #include "packet.h" |
| 34 | |
| 35 | #define DISPATCH_MIN 0 |
| 36 | #define DISPATCH_MAX 255 |
| 37 | |
| 38 | dispatch_fn *dispatch[DISPATCH_MAX]; |
| 39 | |
| 40 | void |
| 41 | dispatch_protocol_error(int type, int plen) |
| 42 | { |
| 43 | error("Hm, dispatch protocol error: type %d plen %d", type, plen); |
| 44 | } |
| 45 | void |
| 46 | dispatch_init(dispatch_fn *dflt) |
| 47 | { |
| 48 | int i; |
| 49 | for (i = 0; i < DISPATCH_MAX; i++) |
| 50 | dispatch[i] = dflt; |
| 51 | } |
| 52 | void |
| 53 | dispatch_set(int type, dispatch_fn *fn) |
| 54 | { |
| 55 | dispatch[type] = fn; |
| 56 | } |
| 57 | void |
| 58 | dispatch_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 | } |