pam_self.c revision 87396 
1/*-
2 * Copyright (c) 2001 Mark R V Murray
3 * All rights reserved.
4 * Copyright (c) 2001 Networks Associates Technologies, Inc.
5 * All rights reserved.
6 *
7 * Portions of this software were developed for the FreeBSD Project by
8 * ThinkSec AS and NAI Labs, the Security Research Division of Network
9 * Associates, Inc.  under DARPA/SPAWAR contract N66001-01-C-8035
10 * ("CBOSS"), as part of the DARPA CHATS research program.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 * 3. The name of the author may not be used to endorse or promote
21 *    products derived from this software without specific prior written
22 *    permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#include <sys/cdefs.h>
38__FBSDID("$FreeBSD: head/lib/libpam/modules/pam_self/pam_self.c 87396 2001-12-05 15:55:14Z des $");
39
40#define _BSD_SOURCE
41
42#include <unistd.h>
43#include <syslog.h>
44
45#define PAM_SM_AUTH
46#define PAM_SM_ACCOUNT
47#define PAM_SM_SESSION
48#define PAM_SM_PASSWORD
49
50#include <security/pam_modules.h>
51#include <pam_mod_misc.h>
52
53PAM_EXTERN int
54pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc, const char **argv)
55{
56	struct options options;
57	const char *luser, *ruser;
58	int r;
59
60	pam_std_option(&options, NULL, argc, argv);
61
62	PAM_LOG("Options processed");
63
64	r = pam_get_item(pamh, PAM_USER, (const void **)&luser);
65	if (r != PAM_SUCCESS)
66		PAM_RETURN(r);
67	if (luser == NULL)
68		PAM_RETURN(PAM_USER_UNKNOWN);
69
70	r = pam_get_item(pamh, PAM_RUSER, (const void **)&ruser);
71	if (r != PAM_SUCCESS)
72		PAM_RETURN(r);
73
74	if (strcmp(luser, ruser) == 0)
75		PAM_RETURN(PAM_SUCCESS);
76
77	PAM_VERBOSE_ERROR("Refused; source and target users differ");
78
79	PAM_RETURN(PAM_AUTH_ERR);
80}
81
82PAM_EXTERN int
83pam_sm_setcred(pam_handle_t *pamh, int flags, int argc, const char **argv)
84{
85	struct options options;
86
87	pam_std_option(&options, NULL, argc, argv);
88
89	PAM_LOG("Options processed");
90
91	PAM_RETURN(PAM_SUCCESS);
92}
93
94PAM_EXTERN int
95pam_sm_acct_mgmt(pam_handle_t *pamh, int flags, int argc ,const char **argv)
96{
97	struct options options;
98
99	pam_std_option(&options, NULL, argc, argv);
100
101	PAM_LOG("Options processed");
102
103	PAM_RETURN(PAM_IGNORE);
104}
105
106PAM_EXTERN int
107pam_sm_chauthtok(pam_handle_t *pamh, int flags, int argc, const char **argv)
108{
109	struct options options;
110
111	pam_std_option(&options, NULL, argc, argv);
112
113	PAM_LOG("Options processed");
114
115	PAM_RETURN(PAM_IGNORE);
116}
117
118PAM_EXTERN int
119pam_sm_open_session(pam_handle_t *pamh, int flags, int argc, const char **argv)
120{
121	struct options options;
122
123	pam_std_option(&options, NULL, argc, argv);
124
125	PAM_LOG("Options processed");
126
127	PAM_RETURN(PAM_IGNORE);
128}
129
130PAM_EXTERN int
131pam_sm_close_session(pam_handle_t *pamh, int flags, int argc, const char **argv)
132{
133	struct options options;
134
135	pam_std_option(&options, NULL, argc, argv);
136
137	PAM_LOG("Options processed");
138
139	PAM_RETURN(PAM_IGNORE);
140}
141
142PAM_MODULE_ENTRY("pam_self");
143