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 | |
72 | int |
73 | mac_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 | |
89 | int |
90 | mac_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 | |
105 | int |
106 | mac_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 | |
121 | int |
122 | mac_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 | |
137 | int |
138 | mac_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 | |
153 | int |
154 | mac_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 | |
170 | int |
171 | mac_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 | |
186 | int |
187 | mac_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 | |
201 | int |
202 | mac_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 | |
216 | int |
217 | mac_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 | |
235 | int |
236 | mac_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 | |