openssh/dispatch.c
Damien Miller b38eff8e4f - Big OpenBSD CVS update (mainly beginnings of SSH2 infrastructure)
- [auth.c session.c sshd.c auth.h]
     split sshd.c -> auth.c session.c sshd.c plus cleanup and goto-removal
   - [bufaux.c bufaux.h]
     support ssh2 bignums
   - [channels.c channels.h clientloop.c sshd.c nchan.c nchan.h packet.c]
     [readconf.c ssh.c ssh.h serverloop.c]
     replace big switch() with function tables (prepare for ssh2)
   - [ssh2.h]
     ssh2 message type codes
   - [sshd.8]
     reorder Xr to avoid cutting
   - [serverloop.c]
     close(fdin) if fdin != fdout, shutdown otherwise, ok theo@
   - [channels.c]
     missing close
     allow bigger packets
   - [cipher.c cipher.h]
     support ssh2 ciphers
   - [compress.c]
     cleanup, less code
   - [dispatch.c dispatch.h]
     function tables for different message types
   - [log-server.c]
     do not log() if debuggin to stderr
     rename a cpp symbol, to avoid param.h collision
   - [mpaux.c]
     KNF
   - [nchan.c]
     sync w/ channels.c
2000-04-01 11:09:21 +10:00

79 lines
2.6 KiB
C

/*
* Copyright (c) 2000 Markus Friedl. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Markus Friedl.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "includes.h"
RCSID("$Id: dispatch.c,v 1.1 2000/04/01 01:09:24 damien Exp $");
#include "ssh.h"
#include "dispatch.h"
#include "packet.h"
#define DISPATCH_MIN 0
#define DISPATCH_MAX 255
dispatch_fn *dispatch[DISPATCH_MAX];
void
dispatch_protocol_error(int type, int plen)
{
error("Hm, dispatch protocol error: type %d plen %d", type, plen);
}
void
dispatch_init(dispatch_fn *dflt)
{
int i;
for (i = 0; i < DISPATCH_MAX; i++)
dispatch[i] = dflt;
}
void
dispatch_set(int type, dispatch_fn *fn)
{
dispatch[type] = fn;
}
void
dispatch_run(int mode, int *done)
{
for (;;) {
int plen;
int type;
if (mode == DISPATCH_BLOCK) {
type = packet_read(&plen);
} else {
type = packet_read_poll(&plen);
if (type == SSH_MSG_NONE)
return;
}
if (type > 0 && type < DISPATCH_MAX && dispatch[type] != NULL)
(*dispatch[type])(type, plen);
else
packet_disconnect("protocol error: rcvd type %d", type);
if (done != NULL && *done)
return;
}
}