| /* $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 <stdio.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 |
| }; |