1 /*-
2 * Copyright (c) 2008-2022 Apple Inc.
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. Neither the name of Apple Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS 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 APPLE OR ITS CONTRIBUTORS BE LIABLE FOR
21 * 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,
25 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
26 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
28 *
29 * $P4: //depot/projects/trustedbsd/openbsm/libbsm/bsm_fcntl.c#2 $
30 */
31
32 #include <sys/param.h>
33 #include <sys/fcntl.h>
34
35 #include <security/audit/audit.h>
36
37 #include <bsm/audit_record.h>
38 #include <bsm/audit_fcntl.h>
39
40 #if CONFIG_AUDIT
41 struct bsm_fcntl_cmd {
42 u_short bfc_bsm_fcntl_cmd;
43 int bfc_local_fcntl_cmd;
44 };
45 typedef struct bsm_fcntl_cmd bsm_fcntl_cmd_t;
46
47 static const bsm_fcntl_cmd_t bsm_fcntl_cmdtab[] = {
48 { BSM_F_DUPFD, F_DUPFD },
49 { BSM_F_GETFD, F_GETFD },
50 { BSM_F_SETFD, F_SETFD },
51 { BSM_F_GETFL, F_GETFL },
52 { BSM_F_SETFL, F_SETFL },
53 #ifdef F_O_GETLK
54 { BSM_F_O_GETLK, F_O_GETLK },
55 #endif
56 { BSM_F_SETLK, F_SETLK },
57 { BSM_F_SETLKW, F_SETLK },
58 #ifdef F_CHFL
59 { BSM_F_CHKFL, F_CHKFL },
60 #endif
61 #ifdef F_DUP2FD
62 { BSM_F_DUP2FD, F_DUP2FD },
63 #endif
64 #ifdef F_ALLOCSP
65 { BSM_F_ALLOCSP, F_ALLOCSP },
66 #endif
67 #ifdef F_FREESP
68 { BSM_F_FREESP, F_FREESP },
69 #endif
70 #ifdef F_ISSTREAM
71 { BSM_F_ISSTREAM, F_ISSTREAM},
72 #endif
73 { BSM_F_GETLK, F_GETLK },
74 #ifdef F_PRIV
75 { BSM_F_PRIV, F_PRIV },
76 #endif
77 #ifdef F_NPRIV
78 { BSM_F_NPRIV, F_NPRIV },
79 #endif
80 #ifdef F_QUOTACTL
81 { BSM_F_QUOTACTL, F_QUOTACTL },
82 #endif
83 #ifdef F_BLOCKS
84 { BSM_F_BLOCKS, F_BLOCKS },
85 #endif
86 #ifdef F_BLKSIZE
87 { BSM_F_BLKSIZE, F_BLKSIZE },
88 #endif
89 { BSM_F_GETOWN, F_GETOWN },
90 { BSM_F_SETOWN, F_SETOWN },
91 #ifdef F_REVOKE
92 { BSM_F_REVOKE, F_REVOKE },
93 #endif
94 #ifdef F_HASREMOTEBLOCKS
95 { BSM_F_HASREMOTEBLOCKS,
96 F_HASREMOTEBLOCKS },
97 #endif
98 #ifdef F_FREESP
99 { BSM_F_FREESP, F_FREESP },
100 #endif
101 #ifdef F_ALLOCSP
102 { BSM_F_ALLOCSP, F_ALLOCSP },
103 #endif
104 #ifdef F_FREESP64
105 { BSM_F_FREESP64, F_FREESP64 },
106 #endif
107 #ifdef F_ALLOCSP64
108 { BSM_F_ALLOCSP64, F_ALLOCSP64 },
109 #endif
110 #ifdef F_GETLK64
111 { BSM_F_GETLK64, F_GETLK64 },
112 #endif
113 #ifdef F_SETLK64
114 { BSM_F_SETLK64, F_SETLK64 },
115 #endif
116 #ifdef F_SETLKW64
117 { BSM_F_SETLKW64, F_SETLKW64 },
118 #endif
119 #ifdef F_SHARE
120 { BSM_F_SHARE, F_SHARE },
121 #endif
122 #ifdef F_UNSHARE
123 { BSM_F_UNSHARE, F_UNSHARE },
124 #endif
125 #ifdef F_SETLK_NBMAND
126 { BSM_F_SETLK_NBMAND, F_SETLK_NBMAND },
127 #endif
128 #ifdef F_SHARE_NBMAND
129 { BSM_F_SHARE_NBMAND, F_SHARE_NBMAND },
130 #endif
131 #ifdef F_SETLK64_NBMAND
132 { BSM_F_SETLK64_NBMAND, F_SETLK64_NBMAND },
133 #endif
134 #ifdef F_GETXFL
135 { BSM_F_GETXFL, F_GETXFL },
136 #endif
137 #ifdef F_BADFD
138 { BSM_F_BADFD, F_BADFD },
139 #endif
140 #ifdef F_OGETLK
141 { BSM_F_OGETLK, F_OGETLK },
142 #endif
143 #ifdef F_OSETLK
144 { BSM_F_OSETLK, F_OSETLK },
145 #endif
146 #ifdef F_OSETLKW
147 { BSM_F_OSETLKW, F_OSETLKW },
148 #endif
149 #ifdef F_SETLK_REMOTE
150 { BSM_F_SETLK_REMOTE, F_SETLK_REMOTE },
151 #endif
152
153 #ifdef F_SETSIG
154 { BSM_F_SETSIG, F_SETSIG },
155 #endif
156 #ifdef F_GETSIG
157 { BSM_F_GETSIG, F_GETSIG },
158 #endif
159
160 #ifdef F_CHKCLEAN
161 { BSM_F_CHKCLEAN, F_CHKCLEAN },
162 #endif
163 #ifdef F_PREALLOCATE
164 { BSM_F_PREALLOCATE, F_PREALLOCATE },
165 #endif
166 #ifdef F_SETSIZE
167 { BSM_F_SETSIZE, F_SETSIZE },
168 #endif
169 #ifdef F_RDADVISE
170 { BSM_F_RDADVISE, F_RDADVISE },
171 #endif
172 #ifdef F_RDAHEAD
173 { BSM_F_RDAHEAD, F_RDAHEAD },
174 #endif
175 #ifdef F_NOCACHE
176 { BSM_F_NOCACHE, F_NOCACHE },
177 #endif
178 #ifdef F_LOG2PHYS
179 { BSM_F_LOG2PHYS, F_LOG2PHYS },
180 #endif
181 #ifdef F_GETPATH
182 { BSM_F_GETPATH, F_GETPATH },
183 #endif
184 #ifdef F_FULLFSYNC
185 { BSM_F_FULLFSYNC, F_FULLFSYNC },
186 #endif
187 #ifdef F_PATHPKG_CHECK
188 { BSM_F_PATHPKG_CHECK, F_PATHPKG_CHECK },
189 #endif
190 #ifdef F_FREEZE_FS
191 { BSM_F_FREEZE_FS, F_FREEZE_FS },
192 #endif
193 #ifdef F_THAW_FS
194 { BSM_F_THAW_FS, F_THAW_FS },
195 #endif
196 #ifdef F_GLOBAL_NOCACHE
197 { BSM_F_GLOBAL_NOCACHE, F_GLOBAL_NOCACHE },
198 #endif
199 #ifdef F_OPENFROM
200 { BSM_F_OPENFROM, F_OPENFROM },
201 #endif
202 #ifdef F_UNLINKFROM
203 { BSM_F_UNLINKFROM, F_UNLINKFROM },
204 #endif
205 #ifdef F_CHECK_OPENEVT
206 { BSM_F_CHECK_OPENEVT, F_CHECK_OPENEVT },
207 #endif
208 #ifdef F_ADDSIGS
209 { BSM_F_ADDSIGS, F_ADDSIGS },
210 #endif
211 #ifdef F_MARKDEPENDENCY
212 { BSM_F_MARKDEPENDENCY, F_MARKDEPENDENCY },
213 #endif
214 #ifdef F_BARRIERFSYNC
215 { BSM_F_BARRIERFSYNC, F_BARRIERFSYNC },
216 #endif
217 #ifdef F_PUNCHHOLE
218 { BSM_F_PUNCHHOLE, F_PUNCHHOLE },
219 #endif
220 #ifdef F_TRIM_ACTIVE_FILE
221 { BSM_F_TRIM_ACTIVE_FILE, F_TRIM_ACTIVE_FILE },
222 #endif
223 #ifdef F_SPECULATIVE_READ
224 { BSM_F_SPECULATIVE_READ, F_SPECULATIVE_READ },
225 #endif
226
227 #ifdef FCNTL_FS_SPECIFIC_BASE
228 { BSM_F_FS_SPECIFIC_0, FCNTL_FS_SPECIFIC_BASE},
229 { BSM_F_FS_SPECIFIC_1, FCNTL_FS_SPECIFIC_BASE + 1},
230 { BSM_F_FS_SPECIFIC_2, FCNTL_FS_SPECIFIC_BASE + 2},
231 { BSM_F_FS_SPECIFIC_3, FCNTL_FS_SPECIFIC_BASE + 3},
232 { BSM_F_FS_SPECIFIC_4, FCNTL_FS_SPECIFIC_BASE + 4},
233 { BSM_F_FS_SPECIFIC_5, FCNTL_FS_SPECIFIC_BASE + 5},
234 { BSM_F_FS_SPECIFIC_6, FCNTL_FS_SPECIFIC_BASE + 6},
235 { BSM_F_FS_SPECIFIC_7, FCNTL_FS_SPECIFIC_BASE + 7},
236 { BSM_F_FS_SPECIFIC_8, FCNTL_FS_SPECIFIC_BASE + 8},
237 { BSM_F_FS_SPECIFIC_9, FCNTL_FS_SPECIFIC_BASE + 9},
238 { BSM_F_FS_SPECIFIC_10, FCNTL_FS_SPECIFIC_BASE + 10},
239 { BSM_F_FS_SPECIFIC_11, FCNTL_FS_SPECIFIC_BASE + 11},
240 { BSM_F_FS_SPECIFIC_12, FCNTL_FS_SPECIFIC_BASE + 12},
241 { BSM_F_FS_SPECIFIC_13, FCNTL_FS_SPECIFIC_BASE + 13},
242 { BSM_F_FS_SPECIFIC_14, FCNTL_FS_SPECIFIC_BASE + 14},
243 { BSM_F_FS_SPECIFIC_15, FCNTL_FS_SPECIFIC_BASE + 15},
244 #endif /* FCNTL_FS_SPECIFIC_BASE */
245 };
246 static const int bsm_fcntl_cmd_count = sizeof(bsm_fcntl_cmdtab) /
247 sizeof(bsm_fcntl_cmdtab[0]);
248
249 static const bsm_fcntl_cmd_t *
bsm_lookup_local_fcntl_cmd(int local_fcntl_cmd)250 bsm_lookup_local_fcntl_cmd(int local_fcntl_cmd)
251 {
252 int i;
253
254 for (i = 0; i < bsm_fcntl_cmd_count; i++) {
255 if (bsm_fcntl_cmdtab[i].bfc_local_fcntl_cmd ==
256 local_fcntl_cmd) {
257 return &bsm_fcntl_cmdtab[i];
258 }
259 }
260 return NULL;
261 }
262
263 u_short
au_fcntl_cmd_to_bsm(int local_fcntl_cmd)264 au_fcntl_cmd_to_bsm(int local_fcntl_cmd)
265 {
266 const bsm_fcntl_cmd_t *bfcp;
267
268 bfcp = bsm_lookup_local_fcntl_cmd(local_fcntl_cmd);
269 if (bfcp == NULL) {
270 return BSM_F_UNKNOWN;
271 }
272 return bfcp->bfc_bsm_fcntl_cmd;
273 }
274
275 static const bsm_fcntl_cmd_t *
bsm_lookup_bsm_fcntl_cmd(u_short bsm_fcntl_cmd)276 bsm_lookup_bsm_fcntl_cmd(u_short bsm_fcntl_cmd)
277 {
278 int i;
279
280 for (i = 0; i < bsm_fcntl_cmd_count; i++) {
281 if (bsm_fcntl_cmdtab[i].bfc_bsm_fcntl_cmd ==
282 bsm_fcntl_cmd) {
283 return &bsm_fcntl_cmdtab[i];
284 }
285 }
286 return NULL;
287 }
288
289 int
au_bsm_to_fcntl_cmd(u_short bsm_fcntl_cmd,int * local_fcntl_cmdp)290 au_bsm_to_fcntl_cmd(u_short bsm_fcntl_cmd, int *local_fcntl_cmdp)
291 {
292 const bsm_fcntl_cmd_t *bfcp;
293
294 bfcp = bsm_lookup_bsm_fcntl_cmd(bsm_fcntl_cmd);
295 if (bfcp == NULL || bfcp->bfc_local_fcntl_cmd) {
296 return -1;
297 }
298 *local_fcntl_cmdp = bfcp->bfc_local_fcntl_cmd;
299 return 0;
300 }
301 #endif /* CONFIG_AUDIT */
302