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 (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  26  */
  27 
  28 #include "includes.h"
  29 RCSID("$OpenBSD: auth2-kbdint.c,v 1.2 2002/05/31 11:35:15 markus Exp $");
  30 
  31 #include "packet.h"
  32 #include "auth.h"
  33 #include "log.h"
  34 #include "servconf.h"
  35 #include "xmalloc.h"
  36 
  37 /* import */
  38 extern ServerOptions options;
  39 
  40 static void
  41 userauth_kbdint(Authctxt *authctxt)
  42 {
  43         char *lang, *devs;
  44 
  45         if (!authctxt || !authctxt->method)
  46                 fatal("%s: missing contex", __func__);
  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 #ifdef USE_PAM
  55         if (options.kbd_interactive_authentication)
  56                 auth2_pam(authctxt);
  57 #else
  58         if (options.challenge_response_authentication)
  59                 auth2_challenge(authctxt, devs);
  60 #endif /* USE_PAM */
  61         xfree(devs);
  62         xfree(lang);
  63 #ifdef HAVE_CYGWIN
  64         if (check_nt_auth(0, authctxt->pw) == 0) {
  65                 authctxt->method->authenticated = 0;
  66                 return;
  67         }
  68 #endif
  69 }
  70 
  71 static void
  72 userauth_kbdint_abandon(Authctxt *authctxt, Authmethod *method)
  73 {
  74 #ifdef USE_PAM
  75         kbdint_pam_abandon(authctxt, method);
  76 #else
  77         auth2_challenge_abandon(authctxt);
  78 #endif /* USE_PAM */
  79 }
  80 
  81 Authmethod method_kbdint = {
  82         "keyboard-interactive",
  83         &options.kbd_interactive_authentication,
  84         userauth_kbdint,
  85         userauth_kbdint_abandon,
  86         NULL, NULL,         /* method data and historical data */
  87         1,                  /* initial userauth */
  88         0, 0, 0,            /* counters */
  89         0, 0, 0, 0, 0, 0    /* state */
  90 };