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
userauth_kbdint(Authctxt * authctxt)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
userauth_kbdint_abandon(Authctxt * authctxt,Authmethod * method)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 };
91