auth2-kbdint.c

   1 /* $OpenBSD: auth2-kbdint.c,v 1.5 2006/08/03 03:34:41 deraadt Exp $ */
   2 /*
   3  * Copyright (c) 2000 Markus Friedl.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  17  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "includes.h"
  27
  28 #include <sys/types.h>
  29
  30 #include "xmalloc.h"
  31 #include "packet.h"
  32 #include "key.h"
  33 #include "hostfile.h"
  34 #include "auth.h"
  35 #include "log.h"
  36 #include "buffer.h"
  37 #include "servconf.h"
  38
  39 /* import */
  40 extern ServerOptions options;
  41
  42 static int
  43 userauth_kbdint(Authctxt *authctxt)
  44 {
  45         int authenticated = 0;
  46         char *lang, *devs;
  47
  48         lang = packet_get_string(NULL);
  49         devs = packet_get_string(NULL);
  50         packet_check_eom();
  51
  52         debug("keyboard-interactive devs %s", devs);
  53
  54         if (options.challenge_response_authentication)
  55                 authenticated = auth2_challenge(authctxt, devs);
  56
  57         xfree(devs);
  58         xfree(lang);
  59 #ifdef HAVE_CYGWIN
  60         if (check_nt_auth(0, authctxt->pw) == 0)
  61                 authenticated = 0;
  62 #endif
  63         return authenticated;
  64 }
  65
  66 Authmethod method_kbdint = {
  67         "keyboard-interactive",
  68         userauth_kbdint,
  69         &options.kbd_interactive_authentication
  70 };