auth2-kbdint.c revision 181110 
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 <stdarg.h>
31
32#include "xmalloc.h"
33#include "packet.h"
34#include "key.h"
35#include "hostfile.h"
36#include "auth.h"
37#include "log.h"
38#include "buffer.h"
39#include "servconf.h"
40
41/* import */
42extern ServerOptions options;
43
44static int
45userauth_kbdint(Authctxt *authctxt)
46{
47	int authenticated = 0;
48	char *lang, *devs;
49
50	lang = packet_get_string(NULL);
51	devs = packet_get_string(NULL);
52	packet_check_eom();
53
54	debug("keyboard-interactive devs %s", devs);
55
56	if (options.challenge_response_authentication)
57		authenticated = auth2_challenge(authctxt, devs);
58
59	xfree(devs);
60	xfree(lang);
61#ifdef HAVE_CYGWIN
62	if (check_nt_auth(0, authctxt->pw) == 0)
63		authenticated = 0;
64#endif
65	return authenticated;
66}
67
68Authmethod method_kbdint = {
69	"keyboard-interactive",
70	userauth_kbdint,
71	&options.kbd_interactive_authentication
72};
73