1 /*
   2  * Copyright (c) 2000 Markus Friedl.  All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  14  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  15  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  16  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  17  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  18  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  19  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  20  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  22  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  23  */
  24 /*
  25  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  26  * Use is subject to license terms.
  27  */
  28 
  29 #include "includes.h"
  30 RCSID("$OpenBSD: auth2-passwd.c,v 1.2 2002/05/31 11:35:15 markus Exp $");
  31 
  32 #pragma ident   "%Z%%M% %I%     %E% SMI"
  33 
  34 #include "xmalloc.h"
  35 #include "packet.h"
  36 #include "log.h"
  37 #include "auth.h"
  38 #include "servconf.h"
  39 
  40 /* import */
  41 extern ServerOptions options;
  42 
  43 static void
  44 userauth_passwd(Authctxt *authctxt)
  45 {
  46         char *password;
  47         int change;
  48         u_int len;
  49 
  50         if (!authctxt || !authctxt->method)
  51                 fatal("%s: missing context", __func__);
  52 
  53         change = packet_get_char();
  54         if (change)
  55                 log("password change not supported");
  56         password = packet_get_string(&len);
  57         packet_check_eom();
  58         if (
  59 #ifdef HAVE_CYGWIN
  60             check_nt_auth(1, authctxt->pw) &&
  61 #endif
  62             auth_password(authctxt, password) == 1) {
  63                 authctxt->method->authenticated = 1;
  64         }
  65         memset(password, 0, len);
  66         xfree(password);
  67 }
  68 
  69 Authmethod method_passwd = {
  70         "password",
  71         &options.password_authentication,
  72         userauth_passwd,
  73         NULL,               /* no abandon function */
  74         NULL, NULL,         /* method data and hist data */
  75         1,                  /* initial userauth */
  76         0, 0, 0,            /* counters */
  77         0, 0, 0, 0, 0, 0    /* state */
  78 };