/src/SockFuzzer/third_party/xnu/security/mac_system.c
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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 | 0 | { |
75 | 0 | int error; |
76 | |
|
77 | 0 | #if SECURITY_MAC_CHECK_ENFORCE |
78 | | /* 21167099 - only check if we allow write */ |
79 | 0 | if (!mac_system_enforce) { |
80 | 0 | return 0; |
81 | 0 | } |
82 | 0 | #endif |
83 | | |
84 | 0 | MAC_CHECK(system_check_acct, cred, vp, |
85 | 0 | vp != NULL ? vp->v_label : NULL); |
86 | |
|
87 | 0 | return error; |
88 | 0 | } |
89 | | |
90 | | int |
91 | | mac_system_check_host_priv(kauth_cred_t cred) |
92 | 0 | { |
93 | 0 | int error; |
94 | |
|
95 | 0 | #if SECURITY_MAC_CHECK_ENFORCE |
96 | | /* 21167099 - only check if we allow write */ |
97 | 0 | if (!mac_system_enforce) { |
98 | 0 | return 0; |
99 | 0 | } |
100 | 0 | #endif |
101 | | |
102 | 0 | MAC_CHECK(system_check_host_priv, cred); |
103 | |
|
104 | 0 | return error; |
105 | 0 | } |
106 | | |
107 | | int |
108 | | mac_system_check_info(kauth_cred_t cred, const char *info_type) |
109 | 0 | { |
110 | 0 | int error; |
111 | |
|
112 | 0 | #if SECURITY_MAC_CHECK_ENFORCE |
113 | | /* 21167099 - only check if we allow write */ |
114 | 0 | if (!mac_system_enforce) { |
115 | 0 | return 0; |
116 | 0 | } |
117 | 0 | #endif |
118 | | |
119 | 0 | MAC_CHECK(system_check_info, cred, info_type); |
120 | |
|
121 | 0 | return error; |
122 | 0 | } |
123 | | |
124 | | int |
125 | | mac_system_check_nfsd(kauth_cred_t cred) |
126 | 0 | { |
127 | 0 | int error; |
128 | |
|
129 | 0 | #if SECURITY_MAC_CHECK_ENFORCE |
130 | | /* 21167099 - only check if we allow write */ |
131 | 0 | if (!mac_system_enforce) { |
132 | 0 | return 0; |
133 | 0 | } |
134 | 0 | #endif |
135 | | |
136 | 0 | MAC_CHECK(system_check_nfsd, cred); |
137 | |
|
138 | 0 | return error; |
139 | 0 | } |
140 | | |
141 | | int |
142 | | mac_system_check_reboot(kauth_cred_t cred, int howto) |
143 | 0 | { |
144 | 0 | int error; |
145 | |
|
146 | 0 | #if SECURITY_MAC_CHECK_ENFORCE |
147 | | /* 21167099 - only check if we allow write */ |
148 | 0 | if (!mac_system_enforce) { |
149 | 0 | return 0; |
150 | 0 | } |
151 | 0 | #endif |
152 | | |
153 | 0 | MAC_CHECK(system_check_reboot, cred, howto); |
154 | |
|
155 | 0 | return error; |
156 | 0 | } |
157 | | |
158 | | |
159 | | int |
160 | | mac_system_check_settime(kauth_cred_t cred) |
161 | 0 | { |
162 | 0 | int error; |
163 | |
|
164 | 0 | #if SECURITY_MAC_CHECK_ENFORCE |
165 | | /* 21167099 - only check if we allow write */ |
166 | 0 | if (!mac_system_enforce) { |
167 | 0 | return 0; |
168 | 0 | } |
169 | 0 | #endif |
170 | | |
171 | 0 | MAC_CHECK(system_check_settime, cred); |
172 | |
|
173 | 0 | return error; |
174 | 0 | } |
175 | | |
176 | | int |
177 | | mac_system_check_swapon(kauth_cred_t cred, struct vnode *vp) |
178 | 0 | { |
179 | 0 | int error; |
180 | |
|
181 | 0 | #if SECURITY_MAC_CHECK_ENFORCE |
182 | | /* 21167099 - only check if we allow write */ |
183 | 0 | if (!mac_system_enforce) { |
184 | 0 | return 0; |
185 | 0 | } |
186 | 0 | #endif |
187 | | |
188 | 0 | MAC_CHECK(system_check_swapon, cred, vp, vp->v_label); |
189 | 0 | return error; |
190 | 0 | } |
191 | | |
192 | | int |
193 | | mac_system_check_swapoff(kauth_cred_t cred, struct vnode *vp) |
194 | 0 | { |
195 | 0 | int error; |
196 | |
|
197 | 0 | #if SECURITY_MAC_CHECK_ENFORCE |
198 | | /* 21167099 - only check if we allow write */ |
199 | 0 | if (!mac_system_enforce) { |
200 | 0 | return 0; |
201 | 0 | } |
202 | 0 | #endif |
203 | | |
204 | 0 | MAC_CHECK(system_check_swapoff, cred, vp, vp->v_label); |
205 | 0 | return error; |
206 | 0 | } |
207 | | |
208 | | int |
209 | | mac_system_check_sysctlbyname(kauth_cred_t cred, const char *namestring, int *name, |
210 | | size_t namelen, user_addr_t oldctl, size_t oldlen, |
211 | | user_addr_t newctl, size_t newlen) |
212 | 0 | { |
213 | 0 | int error; |
214 | |
|
215 | 0 | #if SECURITY_MAC_CHECK_ENFORCE |
216 | | /* 21167099 - only check if we allow write */ |
217 | 0 | if (!mac_system_enforce) { |
218 | 0 | return 0; |
219 | 0 | } |
220 | 0 | #endif |
221 | | |
222 | 0 | MAC_CHECK(system_check_sysctlbyname, cred, namestring, |
223 | 0 | name, namelen, oldctl, oldlen, newctl, newlen); |
224 | |
|
225 | 0 | return error; |
226 | 0 | } |
227 | | |
228 | | int |
229 | | mac_system_check_kas_info(kauth_cred_t cred, int selector) |
230 | 0 | { |
231 | 0 | int error; |
232 | |
|
233 | 0 | #if SECURITY_MAC_CHECK_ENFORCE |
234 | | /* 21167099 - only check if we allow write */ |
235 | 0 | if (!mac_system_enforce) { |
236 | 0 | return 0; |
237 | 0 | } |
238 | 0 | #endif |
239 | | |
240 | 0 | MAC_CHECK(system_check_kas_info, cred, selector); |
241 | |
|
242 | 0 | return error; |
243 | 0 | } |