1/*
2 * Copyright (c) 2007 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
29/*-
30 * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson
31 * Copyright (c) 2001 Ilmar S. Habibulin
32 * Copyright (c) 2001, 2002, 2003, 2004 Networks Associates Technology, Inc.
33 *
34 * This software was developed by Robert Watson and Ilmar Habibulin for the
35 * TrustedBSD Project.
36 *
37 * This software was developed for the FreeBSD Project in part by Network
38 * Associates Laboratories, the Security Research Division of Network
39 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
40 * as part of the DARPA CHATS research program.
41 *
42 * Redistribution and use in source and binary forms, with or without
43 * modification, are permitted provided that the following conditions
44 * are met:
45 * 1. Redistributions of source code must retain the above copyright
46 * notice, this list of conditions and the following disclaimer.
47 * 2. Redistributions in binary form must reproduce the above copyright
48 * notice, this list of conditions and the following disclaimer in the
49 * documentation and/or other materials provided with the distribution.
50 *
51 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
53 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
54 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
55 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
56 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
57 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
58 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
59 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
60 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
61 * SUCH DAMAGE.
62 *
63 */
64
65#include <sys/param.h>
66#include <sys/vnode.h>
67#include <sys/vnode_internal.h>
68
69#include <security/mac_internal.h>
70
71
72int
73mac_system_check_acct(kauth_cred_t cred, struct vnode *vp)
74{
75 int error;
76
77#if SECURITY_MAC_CHECK_ENFORCE
78 /* 21167099 - only check if we allow write */
79 if (!mac_system_enforce)
80 return (0);
81#endif
82
83 MAC_CHECK(system_check_acct, cred, vp,
84 vp != NULL ? vp->v_label : NULL);
85
86 return (error);
87}
88
89int
90mac_system_check_chud(kauth_cred_t cred)
91{
92 int error;
93
94#if SECURITY_MAC_CHECK_ENFORCE
95 /* 21167099 - only check if we allow write */
96 if (!mac_system_enforce)
97 return (0);
98#endif
99
100 MAC_CHECK(system_check_chud, cred);
101
102 return (error);
103}
104
105int
106mac_system_check_host_priv(kauth_cred_t cred)
107{
108 int error;
109
110#if SECURITY_MAC_CHECK_ENFORCE
111 /* 21167099 - only check if we allow write */
112 if (!mac_system_enforce)
113 return (0);
114#endif
115
116 MAC_CHECK(system_check_host_priv, cred);
117
118 return (error);
119}
120
121int
122mac_system_check_info(kauth_cred_t cred, const char *info_type)
123{
124 int error;
125
126#if SECURITY_MAC_CHECK_ENFORCE
127 /* 21167099 - only check if we allow write */
128 if (!mac_system_enforce)
129 return (0);
130#endif
131
132 MAC_CHECK(system_check_info, cred, info_type);
133
134 return (error);
135}
136
137int
138mac_system_check_nfsd(kauth_cred_t cred)
139{
140 int error;
141
142#if SECURITY_MAC_CHECK_ENFORCE
143 /* 21167099 - only check if we allow write */
144 if (!mac_system_enforce)
145 return (0);
146#endif
147
148 MAC_CHECK(system_check_nfsd, cred);
149
150 return (error);
151}
152
153int
154mac_system_check_reboot(kauth_cred_t cred, int howto)
155{
156 int error;
157
158#if SECURITY_MAC_CHECK_ENFORCE
159 /* 21167099 - only check if we allow write */
160 if (!mac_system_enforce)
161 return (0);
162#endif
163
164 MAC_CHECK(system_check_reboot, cred, howto);
165
166 return (error);
167}
168
169
170int
171mac_system_check_settime(kauth_cred_t cred)
172{
173 int error;
174
175#if SECURITY_MAC_CHECK_ENFORCE
176 /* 21167099 - only check if we allow write */
177 if (!mac_system_enforce)
178 return (0);
179#endif
180
181 MAC_CHECK(system_check_settime, cred);
182
183 return (error);
184}
185
186int
187mac_system_check_swapon(kauth_cred_t cred, struct vnode *vp)
188{
189 int error;
190
191#if SECURITY_MAC_CHECK_ENFORCE
192 /* 21167099 - only check if we allow write */
193 if (!mac_system_enforce)
194 return (0);
195#endif
196
197 MAC_CHECK(system_check_swapon, cred, vp, vp->v_label);
198 return (error);
199}
200
201int
202mac_system_check_swapoff(kauth_cred_t cred, struct vnode *vp)
203{
204 int error;
205
206#if SECURITY_MAC_CHECK_ENFORCE
207 /* 21167099 - only check if we allow write */
208 if (!mac_system_enforce)
209 return (0);
210#endif
211
212 MAC_CHECK(system_check_swapoff, cred, vp, vp->v_label);
213 return (error);
214}
215
216int
217mac_system_check_sysctlbyname(kauth_cred_t cred, const char *namestring, int *name,
218 u_int namelen, user_addr_t oldctl, size_t oldlen,
219 user_addr_t newctl, size_t newlen)
220{
221 int error;
222
223#if SECURITY_MAC_CHECK_ENFORCE
224 /* 21167099 - only check if we allow write */
225 if (!mac_system_enforce)
226 return (0);
227#endif
228
229 MAC_CHECK(system_check_sysctlbyname, cred, namestring,
230 name, namelen, oldctl, oldlen, newctl, newlen);
231
232 return (error);
233}
234
235int
236mac_system_check_kas_info(kauth_cred_t cred, int selector)
237{
238 int error;
239
240#if SECURITY_MAC_CHECK_ENFORCE
241 /* 21167099 - only check if we allow write */
242 if (!mac_system_enforce)
243 return (0);
244#endif
245
246 MAC_CHECK(system_check_kas_info, cred, selector);
247
248 return (error);
249}
250