xref: /netbsd-src/crypto/external/bsd/openssh/dist/auth2-kbdint.c (revision 6a493d6bc668897c91594964a732d38505b70cbb)
1 /*	$NetBSD: auth2-kbdint.c,v 1.3 2013/11/08 19:18:24 christos Exp $	*/
2 /* $OpenBSD: auth2-kbdint.c,v 1.6 2013/05/17 00:13:13 djm Exp $ */
3 /*
4  * Copyright (c) 2000 Markus Friedl.  All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26 
27 #include "includes.h"
28 __RCSID("$NetBSD: auth2-kbdint.c,v 1.3 2013/11/08 19:18:24 christos Exp $");
29 #include <sys/types.h>
30 
31 #include "xmalloc.h"
32 #include "packet.h"
33 #include "key.h"
34 #include "hostfile.h"
35 #include "auth.h"
36 #include "log.h"
37 #include "buffer.h"
38 #include "servconf.h"
39 
40 /* import */
41 extern ServerOptions options;
42 
43 static int
44 userauth_kbdint(Authctxt *authctxt)
45 {
46 	int authenticated = 0;
47 	char *lang, *devs;
48 
49 	lang = packet_get_string(NULL);
50 	devs = packet_get_string(NULL);
51 	packet_check_eom();
52 
53 	debug("keyboard-interactive devs %s", devs);
54 
55 	if (options.challenge_response_authentication)
56 		authenticated = auth2_challenge(authctxt, devs);
57 
58 	free(devs);
59 	free(lang);
60 	return authenticated;
61 }
62 
63 Authmethod method_kbdint = {
64 	"keyboard-interactive",
65 	userauth_kbdint,
66 	&options.kbd_interactive_authentication
67 };
68