xref: /freebsd/contrib/openpam/lib/libpam/pam_sm_chauthtok.c (revision febdb468801f35e51c6c5c22221cfce9197c6f3b)
1 /*-
2  * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
3  * Copyright (c) 2004-2011 Dag-Erling Smørgrav
4  * All rights reserved.
5  *
6  * This software was developed for the FreeBSD Project by ThinkSec AS and
7  * Network Associates Laboratories, the Security Research Division of
8  * Network Associates, Inc.  under DARPA/SPAWAR contract N66001-01-C-8035
9  * ("CBOSS"), as part of the DARPA CHATS research program.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  * 3. The name of the author may not be used to endorse or promote
20  *    products derived from this software without specific prior written
21  *    permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  *
35  * $Id: pam_sm_chauthtok.c 648 2013-03-05 17:54:27Z des $
36  */
37 
38 #ifdef HAVE_CONFIG_H
39 # include "config.h"
40 #endif
41 
42 #include <sys/param.h>
43 
44 #include <security/pam_appl.h>
45 #include <security/pam_modules.h>
46 
47 /*
48  * XSSO 4.2.2
49  * XSSO 6 page 72
50  *
51  * Service module implementation for pam_chauthtok
52  */
53 
54 int
55 pam_sm_chauthtok(pam_handle_t *pamh,
56 	int flags,
57 	int argc,
58 	const char **argv)
59 {
60 
61 	ENTER();
62 	RETURNC(PAM_SYSTEM_ERR);
63 }
64 
65 /*
66  * Error codes:
67  *
68  *	PAM_SERVICE_ERR
69  *	PAM_SYSTEM_ERR
70  *	PAM_BUF_ERR
71  *	PAM_CONV_ERR
72  *	PAM_PERM_DENIED
73  *	PAM_IGNORE
74  *	PAM_ABORT
75  *
76  *	PAM_PERM_DENIED
77  *	PAM_AUTHTOK_ERR
78  *	PAM_AUTHTOK_RECOVERY_ERR
79  *	PAM_AUTHTOK_LOCK_BUSY
80  *	PAM_AUTHTOK_DISABLE_AGING
81  *	PAM_TRY_AGAIN
82  */
83 
84 /**
85  * The =pam_sm_chauthtok function is the service module's implementation
86  * of the =pam_chauthtok API function.
87  *
88  * When the application calls =pam_chauthtok, the service function is
89  * called twice, first with the =PAM_PRELIM_CHECK flag set and then again
90  * with the =PAM_UPDATE_AUTHTOK flag set.
91  */
92