77 lines
2.4 KiB
C
77 lines
2.4 KiB
C
/* $OpenBSD: auth2-passwd.c,v 1.16 2018/07/09 21:35:50 markus Exp $ */
|
|
/*
|
|
* 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.
|
|
*
|
|
* 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"
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <string.h>
|
|
#include <stdarg.h>
|
|
|
|
#include "packet.h"
|
|
#include "ssherr.h"
|
|
#include "log.h"
|
|
#include "sshkey.h"
|
|
#include "hostfile.h"
|
|
#include "auth.h"
|
|
#ifdef GSSAPI
|
|
#include "ssh-gss.h"
|
|
#endif
|
|
#include "monitor_wrap.h"
|
|
#include "misc.h"
|
|
#include "servconf.h"
|
|
|
|
/* import */
|
|
extern ServerOptions options;
|
|
|
|
static int
|
|
userauth_passwd(struct ssh *ssh)
|
|
{
|
|
char *password;
|
|
int authenticated = 0, r;
|
|
u_char change;
|
|
size_t len;
|
|
|
|
if ((r = sshpkt_get_u8(ssh, &change)) != 0 ||
|
|
(r = sshpkt_get_cstring(ssh, &password, &len)) != 0 ||
|
|
(change && (r = sshpkt_get_cstring(ssh, NULL, NULL)) != 0) ||
|
|
(r = sshpkt_get_end(ssh)) != 0)
|
|
fatal("%s: %s", __func__, ssh_err(r));
|
|
|
|
if (change)
|
|
logit("password change not supported");
|
|
else if (PRIVSEP(auth_password(ssh, password)) == 1)
|
|
authenticated = 1;
|
|
explicit_bzero(password, len);
|
|
free(password);
|
|
return authenticated;
|
|
}
|
|
|
|
Authmethod method_passwd = {
|
|
"password",
|
|
userauth_passwd,
|
|
&options.password_authentication
|
|
};
|