openssh/compat.c
Damien Miller f6d9e22189 - OpenBSD CVS updates:
- deraadt@cvs.openbsd.org 2000/06/17 09:58:46
     [channels.c]
     everyone says "nix it" (remove protocol 2 debugging message)
   - markus@cvs.openbsd.org  2000/06/17 13:24:34
     [sshconnect.c]
     allow extended server banners
   - markus@cvs.openbsd.org  2000/06/17 14:30:10
     [sshconnect.c]
     missing atomicio, typo
   - jakob@cvs.openbsd.org   2000/06/17 16:52:34
     [servconf.c servconf.h session.c sshd.8 sshd_config]
     add support for ssh v2 subsystems. ok markus@.
   - deraadt@cvs.openbsd.org 2000/06/17 18:57:48
     [readconf.c servconf.c]
     include = in WHITESPACE; markus ok
   - markus@cvs.openbsd.org  2000/06/17 19:09:10
     [auth2.c]
     implement bug compatibility with ssh-2.0.13 pubkey, server side
   - markus@cvs.openbsd.org  2000/06/17 21:00:28
     [compat.c]
     initial support for ssh.com's 2.2.0
   - markus@cvs.openbsd.org  2000/06/17 21:16:09
     [scp.c]
     typo
   - markus@cvs.openbsd.org  2000/06/17 22:05:02
     [auth-rsa.c auth2.c serverloop.c session.c auth-options.c auth-options.h]
     split auth-rsa option parsing into auth-options
     add options support to authorized_keys2
   - markus@cvs.openbsd.org  2000/06/17 22:42:54
     [session.c]
     typo
2000-06-18 14:50:44 +10:00

108 lines
3.1 KiB
C

/*
* Copyright (c) 1999 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: compat.c,v 1.12 2000/06/18 04:50:44 djm Exp $");
#include "ssh.h"
#include "packet.h"
#include "xmalloc.h"
#include "compat.h"
int compat13 = 0;
int compat20 = 0;
int datafellows = 0;
void
enable_compat20(void)
{
verbose("Enabling compatibility mode for protocol 2.0");
compat20 = 1;
}
void
enable_compat13(void)
{
verbose("Enabling compatibility mode for protocol 1.3");
compat13 = 1;
}
/* datafellows bug compatibility */
void
compat_datafellows(const char *version)
{
int i;
size_t len;
struct {
char *version;
int bugs;
} check[] = {
{"2.2.0", SSH_BUG_HMAC},
{"2.1.0", SSH_BUG_SIGBLOB|SSH_BUG_HMAC},
{"2.0.1", SSH_BUG_SIGBLOB|SSH_BUG_HMAC|SSH_BUG_PUBKEYAUTH|SSH_BUG_X11FWD},
{NULL, 0}
};
for (i = 0; check[i].version; i++) {
len = strlen(check[i].version);
if (strlen(version) >= len &&
(strncmp(version, check[i].version, len) == 0)) {
verbose("datafellows: %.200s", version);
datafellows = check[i].bugs;
return;
}
}
}
#define SEP ","
int
proto_spec(const char *spec)
{
char *s, *p;
int ret = SSH_PROTO_UNKNOWN;
if (spec == NULL)
return ret;
s = xstrdup(spec);
for ((p = strtok(s, SEP)); p; (p = strtok(NULL, SEP))) {
switch(atoi(p)) {
case 1:
if (ret == SSH_PROTO_UNKNOWN)
ret |= SSH_PROTO_1_PREFERRED;
ret |= SSH_PROTO_1;
break;
case 2:
ret |= SSH_PROTO_2;
break;
default:
log("ignoring bad proto spec: '%s'.", p);
break;
}
}
xfree(s);
return ret;
}