pam_login_access.c revision 89727 
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_login_access/pam_login_access.c 89727 2002-01-24 09:44:22Z des $");
39
40#define _BSD_SOURCE
41
42#include <sys/param.h>
43
44#include <syslog.h>
45#include <unistd.h>
46
47#define PAM_SM_AUTH
48#define PAM_SM_ACCOUNT
49#define PAM_SM_SESSION
50#define PAM_SM_PASSWORD
51
52#include <security/pam_modules.h>
53#include <pam_mod_misc.h>
54
55extern int login_access(const char *, const char *);
56
57PAM_EXTERN int
58pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc, const char **argv)
59{
60	struct options options;
61
62	pam_std_option(&options, NULL, argc, argv);
63
64	PAM_LOG("Options processed");
65
66	PAM_RETURN(PAM_IGNORE);
67}
68
69PAM_EXTERN int
70pam_sm_setcred(pam_handle_t *pamh, int flags, int argc, const char **argv)
71{
72	struct options options;
73
74	pam_std_option(&options, NULL, argc, argv);
75
76	PAM_LOG("Options processed");
77
78	PAM_RETURN(PAM_IGNORE);
79}
80
81PAM_EXTERN int
82pam_sm_acct_mgmt(pam_handle_t *pamh, int flags, int argc ,const char **argv)
83{
84	struct options options;
85	const char *rhost, *tty, *user;
86	char hostname[MAXHOSTNAMELEN];
87	int pam_err;
88
89	pam_std_option(&options, NULL, argc, argv);
90
91	PAM_LOG("Options processed");
92
93	pam_err = pam_get_item(pamh, PAM_USER, (const void **)&user);
94	if (pam_err != PAM_SUCCESS)
95		PAM_RETURN(pam_err);
96
97	if (user == NULL)
98		PAM_RETURN(PAM_SERVICE_ERR);
99
100	PAM_LOG("Got user: %s", user);
101
102	pam_err = pam_get_item(pamh, PAM_RHOST, (const void **)&rhost);
103	if (pam_err != PAM_SUCCESS)
104		PAM_RETURN(pam_err);
105
106	pam_err = pam_get_item(pamh, PAM_TTY, (const void **)&tty);
107	if (pam_err != PAM_SUCCESS)
108		PAM_RETURN(pam_err);
109
110	gethostname(hostname, sizeof hostname);
111
112	if (strcmp(hostname, rhost) == 0) {
113		PAM_LOG("Checking login.access for user %s on tty %s",
114		    user, tty);
115		if (login_access(user, tty) != 0)
116			PAM_RETURN(PAM_SUCCESS);
117	} else {
118		PAM_LOG("Checking login.access for user %s from host %s",
119		    user, rhost);
120		if (login_access(user, rhost) != 0)
121			PAM_RETURN(PAM_SUCCESS);
122	}
123
124	PAM_RETURN(PAM_AUTH_ERR);
125}
126
127PAM_EXTERN int
128pam_sm_chauthtok(pam_handle_t *pamh, int flags, int argc, const char **argv)
129{
130	struct options options;
131
132	pam_std_option(&options, NULL, argc, argv);
133
134	PAM_LOG("Options processed");
135
136	PAM_RETURN(PAM_IGNORE);
137}
138
139PAM_EXTERN int
140pam_sm_open_session(pam_handle_t *pamh, int flags, int argc, const char **argv)
141{
142	struct options options;
143
144	pam_std_option(&options, NULL, argc, argv);
145
146	PAM_LOG("Options processed");
147
148	PAM_RETURN(PAM_IGNORE);
149}
150
151PAM_EXTERN int
152pam_sm_close_session(pam_handle_t *pamh, int flags, int argc, const char **argv)
153{
154	struct options options;
155
156	pam_std_option(&options, NULL, argc, argv);
157
158	PAM_LOG("Options processed");
159
160	PAM_RETURN(PAM_IGNORE);
161}
162
163PAM_MODULE_ENTRY("pam_login_access");
164