openpam_get_feature.c revision 302408 
1/*-
2 * Copyright (c) 2012 Dag-Erling Sm��rgrav
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 * $Id: openpam_get_feature.c 648 2013-03-05 17:54:27Z des $
30 */
31
32#ifdef HAVE_CONFIG_H
33# include "config.h"
34#endif
35
36#include <security/pam_appl.h>
37#include <security/openpam.h>
38
39#include "openpam_impl.h"
40
41/*
42 * OpenPAM extension
43 *
44 * Query the state of an optional feature.
45 */
46
47int
48openpam_get_feature(int feature, int *onoff)
49{
50
51	ENTERF(feature);
52	if (feature < 0 || feature >= OPENPAM_NUM_FEATURES)
53		RETURNC(PAM_SYMBOL_ERR);
54	*onoff = openpam_features[feature].onoff;
55	RETURNC(PAM_SUCCESS);
56}
57
58/*
59 * Error codes:
60 *
61 *	PAM_SYMBOL_ERR
62 */
63
64/**
65 * EXPERIMENTAL
66 *
67 * The =openpam_get_feature function stores the current state of the
68 * specified feature in the variable pointed to by its =onoff argument.
69 *
70 * The following features are recognized:
71 *
72 *	=OPENPAM_RESTRICT_SERVICE_NAME:
73 *		Disallow path separators in service names.
74 *		This feature is enabled by default.
75 *		Disabling it allows the application to specify the path to
76 *		the desired policy file directly.
77 *
78 *	=OPENPAM_VERIFY_POLICY_FILE:
79 *		Verify the ownership and permissions of the policy file
80 *		and the path leading up to it.
81 *		This feature is enabled by default.
82 *
83 *	=OPENPAM_RESTRICT_MODULE_NAME:
84 *		Disallow path separators in module names.
85 *		This feature is disabled by default.
86 *		Enabling it prevents the use of modules in non-standard
87 *		locations.
88 *
89 *	=OPENPAM_VERIFY_MODULE_FILE:
90 *		Verify the ownership and permissions of each loadable
91 *		module and the path leading up to it.
92 *		This feature is enabled by default.
93 *
94 *
95 * >openpam_set_feature
96 *
97 * AUTHOR DES
98 */
99