pam_chauthtok.c revision 93982 
1/*-
2 * Copyright (c) 2002 Networks Associates Technology, Inc.
3 * All rights reserved.
4 *
5 * This software was developed for the FreeBSD Project by ThinkSec AS and
6 * NAI Labs, the Security Research Division of Network Associates, Inc.
7 * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
8 * DARPA CHATS research program.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote
19 *    products derived from this software without specific prior written
20 *    permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * $P4: //depot/projects/openpam/lib/pam_chauthtok.c#10 $
35 */
36
37#include <sys/param.h>
38
39#include <security/pam_appl.h>
40
41#include "openpam_impl.h"
42
43/*
44 * XSSO 4.2.1
45 * XSSO 6 page 38
46 *
47 * Perform password related functions within the PAM framework
48 */
49
50int
51pam_chauthtok(pam_handle_t *pamh,
52	int flags)
53{
54	int pam_err;
55
56	if (flags & ~(PAM_SILENT|PAM_CHANGE_EXPIRED_AUTHTOK))
57		return (PAM_SYMBOL_ERR);
58	pam_err = openpam_dispatch(pamh, PAM_SM_CHAUTHTOK,
59	    flags | PAM_PRELIM_CHECK);
60	if (pam_err == PAM_SUCCESS)
61		pam_err = openpam_dispatch(pamh, PAM_SM_CHAUTHTOK,
62		    flags | PAM_UPDATE_AUTHTOK);
63	pam_set_item(pamh, PAM_OLDAUTHTOK, NULL);
64	pam_set_item(pamh, PAM_AUTHTOK, NULL);
65	return (pam_err);
66}
67
68/*
69 * Error codes:
70 *
71 *	=openpam_dispatch
72 *	=pam_sm_chauthtok
73 *	!PAM_IGNORE
74 *	PAM_SYMBOL_ERR
75 */
76
77/**
78 * The =pam_chauthtok function attempts to change the authentication token
79 * for the user associated with the pam context specified by the =pamh
80 * argument.
81 *
82 * The =flags argument is the binary or of zero or more of the following
83 * values:
84 *
85 *	=PAM_SILENT
86 *		Do not emit any messages.
87 *	=PAM_CHANGE_EXPIRED_AUTHTOK
88 *		Change only those authentication tokens that have expired.
89 */
90