11305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood/* $OpenBSD: auth2-passwd.c,v 1.9 2006/08/03 03:34:41 deraadt Exp $ */ 21305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood/* 31305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * Copyright (c) 2000 Markus Friedl. All rights reserved. 41305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * 51305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * Redistribution and use in source and binary forms, with or without 61305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * modification, are permitted provided that the following conditions 71305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * are met: 81305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * 1. Redistributions of source code must retain the above copyright 91305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * notice, this list of conditions and the following disclaimer. 101305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * 2. Redistributions in binary form must reproduce the above copyright 111305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * notice, this list of conditions and the following disclaimer in the 121305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * documentation and/or other materials provided with the distribution. 131305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * 141305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 151305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 161305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 171305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 181305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 191305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 201305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 211305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 221305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 231305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 241305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood */ 251305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 261305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "includes.h" 271305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 281305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <sys/types.h> 291305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 301305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <string.h> 311305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <stdarg.h> 321305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 331305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "xmalloc.h" 341305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "packet.h" 351305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "log.h" 361305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "key.h" 371305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "hostfile.h" 381305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "auth.h" 391305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "buffer.h" 401305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#ifdef GSSAPI 411305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "ssh-gss.h" 421305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#endif 431305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "monitor_wrap.h" 441305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "servconf.h" 451305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 461305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood/* import */ 471305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodextern ServerOptions options; 481305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 491305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodstatic int 501305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwooduserauth_passwd(Authctxt *authctxt) 511305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood{ 521305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood char *password, *newpass; 531305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood int authenticated = 0; 541305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood int change; 551305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood u_int len, newlen; 561305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 571305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood change = packet_get_char(); 581305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood password = packet_get_string(&len); 591305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (change) { 601305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood /* discard new password from packet */ 611305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood newpass = packet_get_string(&newlen); 621305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood memset(newpass, 0, newlen); 631305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood xfree(newpass); 641305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood } 651305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood packet_check_eom(); 661305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 671305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (change) 681305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood logit("password change not supported"); 691b6cc98e30329f380546d5f22b1c9c975e3df4f8Mike Lockwood#ifndef ANDROID 701b6cc98e30329f380546d5f22b1c9c975e3df4f8Mike Lockwood /* no password authentication in android */ 711305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood else if (PRIVSEP(auth_password(authctxt, password)) == 1) 721305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood authenticated = 1; 731b6cc98e30329f380546d5f22b1c9c975e3df4f8Mike Lockwood#endif 741305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood memset(password, 0, len); 751305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood xfree(password); 761305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood return authenticated; 771305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood} 781305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 791305e95ba6ff9fa202d0818caf10405df4b0f648Mike LockwoodAuthmethod method_passwd = { 801305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood "password", 811305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood userauth_passwd, 821305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood &options.password_authentication 831305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood}; 84