xref: /freebsd/lib/libpam/modules/pam_deny/pam_deny.c (revision eacee0ff7ec955b32e09515246bd97b6edcd2b0f)
1 /*-
2  * Copyright 2001 Mark R V Murray
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29 
30 #include <stddef.h>
31 
32 #define PAM_SM_AUTH
33 #define PAM_SM_ACCOUNT
34 #define PAM_SM_SESSION
35 #define PAM_SM_PASSWORD
36 
37 #include <security/pam_appl.h>
38 #include <security/pam_modules.h>
39 #include <security/pam_mod_misc.h>
40 
41 PAM_EXTERN int
42 pam_sm_authenticate(pam_handle_t *pamh, int flags __unused, int argc, const char **argv)
43 {
44 	struct options options;
45 
46 	pam_std_option(&options, NULL, argc, argv);
47 
48 	PAM_LOG("Options processed");
49 
50 	PAM_VERBOSE_ERROR("Unconditional deny");
51 
52 	PAM_RETURN(PAM_AUTH_ERR);
53 }
54 
55 PAM_EXTERN int
56 pam_sm_setcred(pam_handle_t *pamh, int flags __unused, int argc, const char **argv)
57 {
58 	struct options options;
59 
60 	pam_std_option(&options, NULL, argc, argv);
61 
62 	PAM_LOG("Options processed");
63 
64 	PAM_VERBOSE_ERROR("Unconditional deny");
65 
66 	PAM_RETURN(PAM_CRED_UNAVAIL);
67 }
68 
69 PAM_EXTERN int
70 pam_sm_acct_mgmt(pam_handle_t *pamh, int flags __unused, 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_VERBOSE_ERROR("Unconditional deny");
79 
80 	PAM_RETURN(PAM_ACCT_EXPIRED);
81 }
82 
83 PAM_EXTERN int
84 pam_sm_chauthtok(pam_handle_t *pamh, int flags __unused, int argc, const char **argv)
85 {
86 	struct options options;
87 
88 	pam_std_option(&options, NULL, argc, argv);
89 
90 	PAM_LOG("Options processed");
91 
92 	PAM_VERBOSE_ERROR("Unconditional deny");
93 
94 	PAM_RETURN(PAM_PERM_DENIED);
95 }
96 
97 PAM_EXTERN int
98 pam_sm_open_session(pam_handle_t *pamh, int flags __unused, int argc, const char **argv)
99 {
100 	struct options options;
101 
102 	pam_std_option(&options, NULL, argc, argv);
103 
104 	PAM_LOG("Options processed");
105 
106 	PAM_VERBOSE_ERROR("Unconditional deny");
107 
108 	PAM_RETURN(PAM_SESSION_ERR);
109 }
110 
111 PAM_EXTERN int
112 pam_sm_close_session(pam_handle_t *pamh, int flags __unused, int argc, const char **argv)
113 {
114 	struct options options;
115 
116 	pam_std_option(&options, NULL, argc, argv);
117 
118 	PAM_LOG("Options processed");
119 
120 	PAM_VERBOSE_ERROR("Unconditional deny");
121 
122 	PAM_RETURN(PAM_SESSION_ERR);
123 }
124 
125 PAM_MODULE_ENTRY("pam_deny");
126