1 /*-
2  * Copyright (c) 2012-2017 Dag-Erling Smørgrav
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  * 3. The name of the author may not be used to endorse or promote
14  *    products derived from this software without specific prior written
15  *    permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #ifdef HAVE_CONFIG_H
31 # include "config.h"
32 #endif
33 
34 #include <security/pam_appl.h>
35 #include <security/openpam.h>
36 
37 #include "openpam_impl.h"
38 
39 /*
40  * OpenPAM extension
41  *
42  * Query the state of an optional feature.
43  */
44 
45 int
46 openpam_get_feature(int feature, int *onoff)
47 {
48 
49 	ENTERF(feature);
50 	if (feature < 0 || feature >= OPENPAM_NUM_FEATURES)
51 		RETURNC(PAM_BAD_FEATURE);
52 	*onoff = openpam_features[feature].onoff;
53 	RETURNC(PAM_SUCCESS);
54 }
55 
56 /*
57  * Error codes:
58  *
59  *	PAM_BAD_FEATURE
60  */
61 
62 /**
63  * EXPERIMENTAL
64  *
65  * The =openpam_get_feature function stores the current state of the
66  * specified feature in the variable pointed to by its =onoff argument.
67  *
68  * The following features are recognized:
69  *
70  *	=OPENPAM_RESTRICT_SERVICE_NAME:
71  *		Disallow path separators in service names.
72  *		This feature is enabled by default.
73  *		Disabling it allows the application to specify the path to
74  *		the desired policy file directly.
75  *
76  *	=OPENPAM_VERIFY_POLICY_FILE:
77  *		Verify the ownership and permissions of the policy file
78  *		and the path leading up to it.
79  *		This feature is enabled by default.
80  *
81  *	=OPENPAM_RESTRICT_MODULE_NAME:
82  *		Disallow path separators in module names.
83  *		This feature is disabled by default.
84  *		Enabling it prevents the use of modules in non-standard
85  *		locations.
86  *
87  *	=OPENPAM_VERIFY_MODULE_FILE:
88  *		Verify the ownership and permissions of each loadable
89  *		module and the path leading up to it.
90  *		This feature is enabled by default.
91  *
92  *
93  * >openpam_set_feature
94  *
95  * AUTHOR DES
96  */
97