1 /* $OpenBSD: auth2-kbdint.c,v 1.7 2014/07/15 15:54:14 millert 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 "misc.h"
40 #include "servconf.h"
41
42 /* import */
43 extern ServerOptions options;
44
45 static int
userauth_kbdint(Authctxt * authctxt)46 userauth_kbdint(Authctxt *authctxt)
47 {
48 int authenticated = 0;
49 char *lang, *devs;
50
51 lang = packet_get_string(NULL);
52 devs = packet_get_string(NULL);
53 packet_check_eom();
54
55 debug("keyboard-interactive devs %s", devs);
56
57 if (options.challenge_response_authentication)
58 authenticated = auth2_challenge(authctxt, devs);
59
60 free(devs);
61 free(lang);
62 return authenticated;
63 }
64
65 Authmethod method_kbdint = {
66 "keyboard-interactive",
67 userauth_kbdint,
68 &options.kbd_interactive_authentication
69 };
70