Commit | Line | Data |
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9590837b KT |
1 | /* |
2 | * security/tomoyo/common.h | |
3 | * | |
76bb0895 | 4 | * Header file for TOMOYO. |
9590837b | 5 | * |
76bb0895 | 6 | * Copyright (C) 2005-2010 NTT DATA CORPORATION |
9590837b KT |
7 | */ |
8 | ||
9 | #ifndef _SECURITY_TOMOYO_COMMON_H | |
10 | #define _SECURITY_TOMOYO_COMMON_H | |
11 | ||
12 | #include <linux/ctype.h> | |
13 | #include <linux/string.h> | |
14 | #include <linux/mm.h> | |
15 | #include <linux/file.h> | |
16 | #include <linux/kmod.h> | |
17 | #include <linux/fs.h> | |
18 | #include <linux/sched.h> | |
19 | #include <linux/namei.h> | |
20 | #include <linux/mount.h> | |
21 | #include <linux/list.h> | |
76bb0895 | 22 | #include <linux/cred.h> |
17fcfbd9 | 23 | #include <linux/poll.h> |
2066a361 TH |
24 | #include <linux/binfmts.h> |
25 | #include <linux/highmem.h> | |
059d84db TH |
26 | #include <linux/net.h> |
27 | #include <linux/inet.h> | |
28 | #include <linux/in.h> | |
29 | #include <linux/in6.h> | |
30 | #include <linux/un.h> | |
31 | #include <net/sock.h> | |
32 | #include <net/af_unix.h> | |
33 | #include <net/ip.h> | |
34 | #include <net/ipv6.h> | |
35 | #include <net/udp.h> | |
76bb0895 TH |
36 | |
37 | /********** Constants definitions. **********/ | |
38 | ||
39 | /* | |
40 | * TOMOYO uses this hash only when appending a string into the string | |
41 | * table. Frequency of appending strings is very low. So we don't need | |
42 | * large (e.g. 64k) hash size. 256 will be sufficient. | |
43 | */ | |
44 | #define TOMOYO_HASH_BITS 8 | |
45 | #define TOMOYO_MAX_HASH (1u<<TOMOYO_HASH_BITS) | |
46 | ||
059d84db TH |
47 | /* |
48 | * TOMOYO checks only SOCK_STREAM, SOCK_DGRAM, SOCK_RAW, SOCK_SEQPACKET. | |
49 | * Therefore, we don't need SOCK_MAX. | |
50 | */ | |
51 | #define TOMOYO_SOCK_MAX 6 | |
52 | ||
c8c57e84 | 53 | #define TOMOYO_EXEC_TMPSIZE 4096 |
76bb0895 TH |
54 | |
55 | /* Profile number is an integer between 0 and 255. */ | |
56 | #define TOMOYO_MAX_PROFILES 256 | |
57 | ||
32997144 TH |
58 | /* Group number is an integer between 0 and 255. */ |
59 | #define TOMOYO_MAX_ACL_GROUPS 256 | |
60 | ||
2066a361 TH |
61 | /* Index numbers for "struct tomoyo_condition". */ |
62 | enum tomoyo_conditions_index { | |
63 | TOMOYO_TASK_UID, /* current_uid() */ | |
64 | TOMOYO_TASK_EUID, /* current_euid() */ | |
65 | TOMOYO_TASK_SUID, /* current_suid() */ | |
66 | TOMOYO_TASK_FSUID, /* current_fsuid() */ | |
67 | TOMOYO_TASK_GID, /* current_gid() */ | |
68 | TOMOYO_TASK_EGID, /* current_egid() */ | |
69 | TOMOYO_TASK_SGID, /* current_sgid() */ | |
70 | TOMOYO_TASK_FSGID, /* current_fsgid() */ | |
71 | TOMOYO_TASK_PID, /* sys_getpid() */ | |
72 | TOMOYO_TASK_PPID, /* sys_getppid() */ | |
5b636857 TH |
73 | TOMOYO_EXEC_ARGC, /* "struct linux_binprm *"->argc */ |
74 | TOMOYO_EXEC_ENVC, /* "struct linux_binprm *"->envc */ | |
8761afd4 TH |
75 | TOMOYO_TYPE_IS_SOCKET, /* S_IFSOCK */ |
76 | TOMOYO_TYPE_IS_SYMLINK, /* S_IFLNK */ | |
77 | TOMOYO_TYPE_IS_FILE, /* S_IFREG */ | |
78 | TOMOYO_TYPE_IS_BLOCK_DEV, /* S_IFBLK */ | |
79 | TOMOYO_TYPE_IS_DIRECTORY, /* S_IFDIR */ | |
80 | TOMOYO_TYPE_IS_CHAR_DEV, /* S_IFCHR */ | |
81 | TOMOYO_TYPE_IS_FIFO, /* S_IFIFO */ | |
82 | TOMOYO_MODE_SETUID, /* S_ISUID */ | |
83 | TOMOYO_MODE_SETGID, /* S_ISGID */ | |
84 | TOMOYO_MODE_STICKY, /* S_ISVTX */ | |
85 | TOMOYO_MODE_OWNER_READ, /* S_IRUSR */ | |
86 | TOMOYO_MODE_OWNER_WRITE, /* S_IWUSR */ | |
87 | TOMOYO_MODE_OWNER_EXECUTE, /* S_IXUSR */ | |
88 | TOMOYO_MODE_GROUP_READ, /* S_IRGRP */ | |
89 | TOMOYO_MODE_GROUP_WRITE, /* S_IWGRP */ | |
90 | TOMOYO_MODE_GROUP_EXECUTE, /* S_IXGRP */ | |
91 | TOMOYO_MODE_OTHERS_READ, /* S_IROTH */ | |
92 | TOMOYO_MODE_OTHERS_WRITE, /* S_IWOTH */ | |
93 | TOMOYO_MODE_OTHERS_EXECUTE, /* S_IXOTH */ | |
2ca9bf45 TH |
94 | TOMOYO_EXEC_REALPATH, |
95 | TOMOYO_SYMLINK_TARGET, | |
8761afd4 TH |
96 | TOMOYO_PATH1_UID, |
97 | TOMOYO_PATH1_GID, | |
98 | TOMOYO_PATH1_INO, | |
99 | TOMOYO_PATH1_MAJOR, | |
100 | TOMOYO_PATH1_MINOR, | |
101 | TOMOYO_PATH1_PERM, | |
102 | TOMOYO_PATH1_TYPE, | |
103 | TOMOYO_PATH1_DEV_MAJOR, | |
104 | TOMOYO_PATH1_DEV_MINOR, | |
105 | TOMOYO_PATH2_UID, | |
106 | TOMOYO_PATH2_GID, | |
107 | TOMOYO_PATH2_INO, | |
108 | TOMOYO_PATH2_MAJOR, | |
109 | TOMOYO_PATH2_MINOR, | |
110 | TOMOYO_PATH2_PERM, | |
111 | TOMOYO_PATH2_TYPE, | |
112 | TOMOYO_PATH2_DEV_MAJOR, | |
113 | TOMOYO_PATH2_DEV_MINOR, | |
114 | TOMOYO_PATH1_PARENT_UID, | |
115 | TOMOYO_PATH1_PARENT_GID, | |
116 | TOMOYO_PATH1_PARENT_INO, | |
117 | TOMOYO_PATH1_PARENT_PERM, | |
118 | TOMOYO_PATH2_PARENT_UID, | |
119 | TOMOYO_PATH2_PARENT_GID, | |
120 | TOMOYO_PATH2_PARENT_INO, | |
121 | TOMOYO_PATH2_PARENT_PERM, | |
2066a361 TH |
122 | TOMOYO_MAX_CONDITION_KEYWORD, |
123 | TOMOYO_NUMBER_UNION, | |
2ca9bf45 | 124 | TOMOYO_NAME_UNION, |
5b636857 TH |
125 | TOMOYO_ARGV_ENTRY, |
126 | TOMOYO_ENVP_ENTRY, | |
2066a361 TH |
127 | }; |
128 | ||
8761afd4 TH |
129 | |
130 | /* Index numbers for stat(). */ | |
131 | enum tomoyo_path_stat_index { | |
132 | /* Do not change this order. */ | |
133 | TOMOYO_PATH1, | |
134 | TOMOYO_PATH1_PARENT, | |
135 | TOMOYO_PATH2, | |
136 | TOMOYO_PATH2_PARENT, | |
137 | TOMOYO_MAX_PATH_STAT | |
138 | }; | |
139 | ||
b5bc60b4 | 140 | /* Index numbers for operation mode. */ |
cb0abe6a TH |
141 | enum tomoyo_mode_index { |
142 | TOMOYO_CONFIG_DISABLED, | |
143 | TOMOYO_CONFIG_LEARNING, | |
144 | TOMOYO_CONFIG_PERMISSIVE, | |
57c2590f | 145 | TOMOYO_CONFIG_ENFORCING, |
eadd99cc TH |
146 | TOMOYO_CONFIG_MAX_MODE, |
147 | TOMOYO_CONFIG_WANT_REJECT_LOG = 64, | |
148 | TOMOYO_CONFIG_WANT_GRANT_LOG = 128, | |
149 | TOMOYO_CONFIG_USE_DEFAULT = 255, | |
cb0abe6a TH |
150 | }; |
151 | ||
b5bc60b4 | 152 | /* Index numbers for entry type. */ |
a230f9e7 TH |
153 | enum tomoyo_policy_id { |
154 | TOMOYO_ID_GROUP, | |
059d84db | 155 | TOMOYO_ID_ADDRESS_GROUP, |
a230f9e7 TH |
156 | TOMOYO_ID_PATH_GROUP, |
157 | TOMOYO_ID_NUMBER_GROUP, | |
5448ec4f | 158 | TOMOYO_ID_TRANSITION_CONTROL, |
a230f9e7 | 159 | TOMOYO_ID_AGGREGATOR, |
a230f9e7 | 160 | TOMOYO_ID_MANAGER, |
2066a361 | 161 | TOMOYO_ID_CONDITION, |
a230f9e7 TH |
162 | TOMOYO_ID_NAME, |
163 | TOMOYO_ID_ACL, | |
164 | TOMOYO_ID_DOMAIN, | |
165 | TOMOYO_MAX_POLICY | |
166 | }; | |
167 | ||
2c47ab93 TH |
168 | /* Index numbers for domain's attributes. */ |
169 | enum tomoyo_domain_info_flags_index { | |
170 | /* Quota warnning flag. */ | |
171 | TOMOYO_DIF_QUOTA_WARNED, | |
172 | /* | |
173 | * This domain was unable to create a new domain at | |
174 | * tomoyo_find_next_domain() because the name of the domain to be | |
175 | * created was too long or it could not allocate memory. | |
176 | * More than one process continued execve() without domain transition. | |
177 | */ | |
178 | TOMOYO_DIF_TRANSITION_FAILED, | |
179 | TOMOYO_MAX_DOMAIN_INFO_FLAGS | |
180 | }; | |
181 | ||
1f067a68 TH |
182 | /* Index numbers for audit type. */ |
183 | enum tomoyo_grant_log { | |
184 | /* Follow profile's configuration. */ | |
185 | TOMOYO_GRANTLOG_AUTO, | |
186 | /* Do not generate grant log. */ | |
187 | TOMOYO_GRANTLOG_NO, | |
188 | /* Generate grant_log. */ | |
189 | TOMOYO_GRANTLOG_YES, | |
190 | }; | |
191 | ||
b5bc60b4 | 192 | /* Index numbers for group entries. */ |
a230f9e7 TH |
193 | enum tomoyo_group_id { |
194 | TOMOYO_PATH_GROUP, | |
195 | TOMOYO_NUMBER_GROUP, | |
059d84db | 196 | TOMOYO_ADDRESS_GROUP, |
a230f9e7 TH |
197 | TOMOYO_MAX_GROUP |
198 | }; | |
199 | ||
b5bc60b4 TH |
200 | /* Index numbers for type of numeric values. */ |
201 | enum tomoyo_value_type { | |
202 | TOMOYO_VALUE_TYPE_INVALID, | |
203 | TOMOYO_VALUE_TYPE_DECIMAL, | |
204 | TOMOYO_VALUE_TYPE_OCTAL, | |
205 | TOMOYO_VALUE_TYPE_HEXADECIMAL, | |
206 | }; | |
4c3e9e2d | 207 | |
b5bc60b4 | 208 | /* Index numbers for domain transition control keywords. */ |
5448ec4f TH |
209 | enum tomoyo_transition_type { |
210 | /* Do not change this order, */ | |
bd03a3e4 TH |
211 | TOMOYO_TRANSITION_CONTROL_NO_RESET, |
212 | TOMOYO_TRANSITION_CONTROL_RESET, | |
5448ec4f TH |
213 | TOMOYO_TRANSITION_CONTROL_NO_INITIALIZE, |
214 | TOMOYO_TRANSITION_CONTROL_INITIALIZE, | |
215 | TOMOYO_TRANSITION_CONTROL_NO_KEEP, | |
216 | TOMOYO_TRANSITION_CONTROL_KEEP, | |
217 | TOMOYO_MAX_TRANSITION_TYPE | |
218 | }; | |
219 | ||
76bb0895 | 220 | /* Index numbers for Access Controls. */ |
084da356 | 221 | enum tomoyo_acl_entry_type_index { |
7ef61233 TH |
222 | TOMOYO_TYPE_PATH_ACL, |
223 | TOMOYO_TYPE_PATH2_ACL, | |
a1f9bb6a | 224 | TOMOYO_TYPE_PATH_NUMBER_ACL, |
75093152 | 225 | TOMOYO_TYPE_MKDEV_ACL, |
2106ccd9 | 226 | TOMOYO_TYPE_MOUNT_ACL, |
059d84db TH |
227 | TOMOYO_TYPE_INET_ACL, |
228 | TOMOYO_TYPE_UNIX_ACL, | |
d58e0da8 | 229 | TOMOYO_TYPE_ENV_ACL, |
084da356 | 230 | }; |
76bb0895 | 231 | |
b5bc60b4 | 232 | /* Index numbers for access controls with one pathname. */ |
084da356 | 233 | enum tomoyo_path_acl_index { |
7ef61233 TH |
234 | TOMOYO_TYPE_EXECUTE, |
235 | TOMOYO_TYPE_READ, | |
236 | TOMOYO_TYPE_WRITE, | |
7c75964f | 237 | TOMOYO_TYPE_APPEND, |
7ef61233 | 238 | TOMOYO_TYPE_UNLINK, |
7c75964f | 239 | TOMOYO_TYPE_GETATTR, |
7ef61233 | 240 | TOMOYO_TYPE_RMDIR, |
7ef61233 TH |
241 | TOMOYO_TYPE_TRUNCATE, |
242 | TOMOYO_TYPE_SYMLINK, | |
7ef61233 | 243 | TOMOYO_TYPE_CHROOT, |
7ef61233 TH |
244 | TOMOYO_TYPE_UMOUNT, |
245 | TOMOYO_MAX_PATH_OPERATION | |
084da356 TH |
246 | }; |
247 | ||
b22b8b9f | 248 | /* Index numbers for /sys/kernel/security/tomoyo/stat interface. */ |
eadd99cc TH |
249 | enum tomoyo_memory_stat_type { |
250 | TOMOYO_MEMORY_POLICY, | |
251 | TOMOYO_MEMORY_AUDIT, | |
252 | TOMOYO_MEMORY_QUERY, | |
253 | TOMOYO_MAX_MEMORY_STAT | |
254 | }; | |
255 | ||
75093152 | 256 | enum tomoyo_mkdev_acl_index { |
a1f9bb6a TH |
257 | TOMOYO_TYPE_MKBLOCK, |
258 | TOMOYO_TYPE_MKCHAR, | |
75093152 | 259 | TOMOYO_MAX_MKDEV_OPERATION |
a1f9bb6a TH |
260 | }; |
261 | ||
059d84db TH |
262 | /* Index numbers for socket operations. */ |
263 | enum tomoyo_network_acl_index { | |
264 | TOMOYO_NETWORK_BIND, /* bind() operation. */ | |
265 | TOMOYO_NETWORK_LISTEN, /* listen() operation. */ | |
266 | TOMOYO_NETWORK_CONNECT, /* connect() operation. */ | |
267 | TOMOYO_NETWORK_SEND, /* send() operation. */ | |
268 | TOMOYO_MAX_NETWORK_OPERATION | |
269 | }; | |
270 | ||
b5bc60b4 | 271 | /* Index numbers for access controls with two pathnames. */ |
084da356 | 272 | enum tomoyo_path2_acl_index { |
7ef61233 TH |
273 | TOMOYO_TYPE_LINK, |
274 | TOMOYO_TYPE_RENAME, | |
275 | TOMOYO_TYPE_PIVOT_ROOT, | |
276 | TOMOYO_MAX_PATH2_OPERATION | |
084da356 TH |
277 | }; |
278 | ||
b5bc60b4 | 279 | /* Index numbers for access controls with one pathname and one number. */ |
a1f9bb6a TH |
280 | enum tomoyo_path_number_acl_index { |
281 | TOMOYO_TYPE_CREATE, | |
282 | TOMOYO_TYPE_MKDIR, | |
283 | TOMOYO_TYPE_MKFIFO, | |
284 | TOMOYO_TYPE_MKSOCK, | |
285 | TOMOYO_TYPE_IOCTL, | |
286 | TOMOYO_TYPE_CHMOD, | |
287 | TOMOYO_TYPE_CHOWN, | |
288 | TOMOYO_TYPE_CHGRP, | |
289 | TOMOYO_MAX_PATH_NUMBER_OPERATION | |
290 | }; | |
291 | ||
b5bc60b4 | 292 | /* Index numbers for /sys/kernel/security/tomoyo/ interfaces. */ |
084da356 TH |
293 | enum tomoyo_securityfs_interface_index { |
294 | TOMOYO_DOMAINPOLICY, | |
295 | TOMOYO_EXCEPTIONPOLICY, | |
084da356 | 296 | TOMOYO_PROCESS_STATUS, |
b22b8b9f | 297 | TOMOYO_STAT, |
084da356 | 298 | TOMOYO_SELFDOMAIN, |
eadd99cc | 299 | TOMOYO_AUDIT, |
084da356 TH |
300 | TOMOYO_VERSION, |
301 | TOMOYO_PROFILE, | |
17fcfbd9 | 302 | TOMOYO_QUERY, |
084da356 TH |
303 | TOMOYO_MANAGER |
304 | }; | |
9590837b | 305 | |
b5bc60b4 TH |
306 | /* Index numbers for special mount operations. */ |
307 | enum tomoyo_special_mount { | |
308 | TOMOYO_MOUNT_BIND, /* mount --bind /source /dest */ | |
309 | TOMOYO_MOUNT_MOVE, /* mount --move /old /new */ | |
310 | TOMOYO_MOUNT_REMOUNT, /* mount -o remount /dir */ | |
311 | TOMOYO_MOUNT_MAKE_UNBINDABLE, /* mount --make-unbindable /dir */ | |
312 | TOMOYO_MOUNT_MAKE_PRIVATE, /* mount --make-private /dir */ | |
313 | TOMOYO_MOUNT_MAKE_SLAVE, /* mount --make-slave /dir */ | |
314 | TOMOYO_MOUNT_MAKE_SHARED, /* mount --make-shared /dir */ | |
315 | TOMOYO_MAX_SPECIAL_MOUNT | |
316 | }; | |
317 | ||
318 | /* Index numbers for functionality. */ | |
57c2590f TH |
319 | enum tomoyo_mac_index { |
320 | TOMOYO_MAC_FILE_EXECUTE, | |
321 | TOMOYO_MAC_FILE_OPEN, | |
322 | TOMOYO_MAC_FILE_CREATE, | |
323 | TOMOYO_MAC_FILE_UNLINK, | |
7c75964f | 324 | TOMOYO_MAC_FILE_GETATTR, |
57c2590f TH |
325 | TOMOYO_MAC_FILE_MKDIR, |
326 | TOMOYO_MAC_FILE_RMDIR, | |
327 | TOMOYO_MAC_FILE_MKFIFO, | |
328 | TOMOYO_MAC_FILE_MKSOCK, | |
329 | TOMOYO_MAC_FILE_TRUNCATE, | |
330 | TOMOYO_MAC_FILE_SYMLINK, | |
57c2590f TH |
331 | TOMOYO_MAC_FILE_MKBLOCK, |
332 | TOMOYO_MAC_FILE_MKCHAR, | |
333 | TOMOYO_MAC_FILE_LINK, | |
334 | TOMOYO_MAC_FILE_RENAME, | |
335 | TOMOYO_MAC_FILE_CHMOD, | |
336 | TOMOYO_MAC_FILE_CHOWN, | |
337 | TOMOYO_MAC_FILE_CHGRP, | |
338 | TOMOYO_MAC_FILE_IOCTL, | |
339 | TOMOYO_MAC_FILE_CHROOT, | |
340 | TOMOYO_MAC_FILE_MOUNT, | |
341 | TOMOYO_MAC_FILE_UMOUNT, | |
342 | TOMOYO_MAC_FILE_PIVOT_ROOT, | |
059d84db TH |
343 | TOMOYO_MAC_NETWORK_INET_STREAM_BIND, |
344 | TOMOYO_MAC_NETWORK_INET_STREAM_LISTEN, | |
345 | TOMOYO_MAC_NETWORK_INET_STREAM_CONNECT, | |
346 | TOMOYO_MAC_NETWORK_INET_DGRAM_BIND, | |
347 | TOMOYO_MAC_NETWORK_INET_DGRAM_SEND, | |
348 | TOMOYO_MAC_NETWORK_INET_RAW_BIND, | |
349 | TOMOYO_MAC_NETWORK_INET_RAW_SEND, | |
350 | TOMOYO_MAC_NETWORK_UNIX_STREAM_BIND, | |
351 | TOMOYO_MAC_NETWORK_UNIX_STREAM_LISTEN, | |
352 | TOMOYO_MAC_NETWORK_UNIX_STREAM_CONNECT, | |
353 | TOMOYO_MAC_NETWORK_UNIX_DGRAM_BIND, | |
354 | TOMOYO_MAC_NETWORK_UNIX_DGRAM_SEND, | |
355 | TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_BIND, | |
356 | TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_LISTEN, | |
357 | TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_CONNECT, | |
d58e0da8 | 358 | TOMOYO_MAC_ENVIRON, |
57c2590f TH |
359 | TOMOYO_MAX_MAC_INDEX |
360 | }; | |
361 | ||
b5bc60b4 | 362 | /* Index numbers for category of functionality. */ |
57c2590f TH |
363 | enum tomoyo_mac_category_index { |
364 | TOMOYO_MAC_CATEGORY_FILE, | |
059d84db | 365 | TOMOYO_MAC_CATEGORY_NETWORK, |
d58e0da8 | 366 | TOMOYO_MAC_CATEGORY_MISC, |
57c2590f TH |
367 | TOMOYO_MAX_MAC_CATEGORY_INDEX |
368 | }; | |
369 | ||
82e0f001 | 370 | /* |
b5bc60b4 TH |
371 | * Retry this request. Returned by tomoyo_supervisor() if policy violation has |
372 | * occurred in enforcing mode and the userspace daemon decided to retry. | |
82e0f001 | 373 | * |
b5bc60b4 TH |
374 | * We must choose a positive value in order to distinguish "granted" (which is |
375 | * 0) and "rejected" (which is a negative value) and "retry". | |
82e0f001 | 376 | */ |
b5bc60b4 TH |
377 | #define TOMOYO_RETRY_REQUEST 1 |
378 | ||
b22b8b9f TH |
379 | /* Index numbers for /sys/kernel/security/tomoyo/stat interface. */ |
380 | enum tomoyo_policy_stat_type { | |
381 | /* Do not change this order. */ | |
382 | TOMOYO_STAT_POLICY_UPDATES, | |
383 | TOMOYO_STAT_POLICY_LEARNING, /* == TOMOYO_CONFIG_LEARNING */ | |
384 | TOMOYO_STAT_POLICY_PERMISSIVE, /* == TOMOYO_CONFIG_PERMISSIVE */ | |
385 | TOMOYO_STAT_POLICY_ENFORCING, /* == TOMOYO_CONFIG_ENFORCING */ | |
386 | TOMOYO_MAX_POLICY_STAT | |
387 | }; | |
388 | ||
d5ca1725 TH |
389 | /* Index numbers for profile's PREFERENCE values. */ |
390 | enum tomoyo_pref_index { | |
eadd99cc | 391 | TOMOYO_PREF_MAX_AUDIT_LOG, |
d5ca1725 TH |
392 | TOMOYO_PREF_MAX_LEARNING_ENTRY, |
393 | TOMOYO_MAX_PREF | |
394 | }; | |
395 | ||
b5bc60b4 TH |
396 | /********** Structure definitions. **********/ |
397 | ||
398 | /* Common header for holding ACL entries. */ | |
82e0f001 TH |
399 | struct tomoyo_acl_head { |
400 | struct list_head list; | |
401 | bool is_deleted; | |
402 | } __packed; | |
403 | ||
0df7e8b8 TH |
404 | /* Common header for shared entries. */ |
405 | struct tomoyo_shared_acl_head { | |
406 | struct list_head list; | |
407 | atomic_t users; | |
408 | } __packed; | |
409 | ||
bd03a3e4 TH |
410 | struct tomoyo_policy_namespace; |
411 | ||
b5bc60b4 | 412 | /* Structure for request info. */ |
cb0abe6a | 413 | struct tomoyo_request_info { |
8761afd4 TH |
414 | /* |
415 | * For holding parameters specific to operations which deal files. | |
416 | * NULL if not dealing files. | |
417 | */ | |
418 | struct tomoyo_obj_info *obj; | |
2ca9bf45 TH |
419 | /* |
420 | * For holding parameters specific to execve() request. | |
421 | * NULL if not dealing do_execve(). | |
422 | */ | |
423 | struct tomoyo_execve *ee; | |
cb0abe6a | 424 | struct tomoyo_domain_info *domain; |
cf6e9a64 TH |
425 | /* For holding parameters. */ |
426 | union { | |
427 | struct { | |
428 | const struct tomoyo_path_info *filename; | |
484ca79c TH |
429 | /* For using wildcards at tomoyo_find_next_domain(). */ |
430 | const struct tomoyo_path_info *matched_path; | |
b5bc60b4 | 431 | /* One of values in "enum tomoyo_path_acl_index". */ |
cf6e9a64 TH |
432 | u8 operation; |
433 | } path; | |
434 | struct { | |
435 | const struct tomoyo_path_info *filename1; | |
436 | const struct tomoyo_path_info *filename2; | |
b5bc60b4 | 437 | /* One of values in "enum tomoyo_path2_acl_index". */ |
cf6e9a64 TH |
438 | u8 operation; |
439 | } path2; | |
440 | struct { | |
441 | const struct tomoyo_path_info *filename; | |
442 | unsigned int mode; | |
443 | unsigned int major; | |
444 | unsigned int minor; | |
b5bc60b4 | 445 | /* One of values in "enum tomoyo_mkdev_acl_index". */ |
cf6e9a64 TH |
446 | u8 operation; |
447 | } mkdev; | |
448 | struct { | |
449 | const struct tomoyo_path_info *filename; | |
450 | unsigned long number; | |
b5bc60b4 TH |
451 | /* |
452 | * One of values in | |
453 | * "enum tomoyo_path_number_acl_index". | |
454 | */ | |
cf6e9a64 TH |
455 | u8 operation; |
456 | } path_number; | |
d58e0da8 TH |
457 | struct { |
458 | const struct tomoyo_path_info *name; | |
459 | } environ; | |
059d84db TH |
460 | struct { |
461 | const __be32 *address; | |
462 | u16 port; | |
463 | /* One of values smaller than TOMOYO_SOCK_MAX. */ | |
464 | u8 protocol; | |
465 | /* One of values in "enum tomoyo_network_acl_index". */ | |
466 | u8 operation; | |
467 | bool is_ipv6; | |
468 | } inet_network; | |
469 | struct { | |
470 | const struct tomoyo_path_info *address; | |
471 | /* One of values smaller than TOMOYO_SOCK_MAX. */ | |
472 | u8 protocol; | |
473 | /* One of values in "enum tomoyo_network_acl_index". */ | |
474 | u8 operation; | |
475 | } unix_network; | |
cf6e9a64 TH |
476 | struct { |
477 | const struct tomoyo_path_info *type; | |
478 | const struct tomoyo_path_info *dir; | |
479 | const struct tomoyo_path_info *dev; | |
480 | unsigned long flags; | |
481 | int need_dev; | |
482 | } mount; | |
483 | } param; | |
1f067a68 | 484 | struct tomoyo_acl_info *matched_acl; |
cf6e9a64 TH |
485 | u8 param_type; |
486 | bool granted; | |
17fcfbd9 TH |
487 | u8 retry; |
488 | u8 profile; | |
cb0abe6a | 489 | u8 mode; /* One of tomoyo_mode_index . */ |
57c2590f | 490 | u8 type; |
cb0abe6a TH |
491 | }; |
492 | ||
b5bc60b4 | 493 | /* Structure for holding a token. */ |
9590837b KT |
494 | struct tomoyo_path_info { |
495 | const char *name; | |
496 | u32 hash; /* = full_name_hash(name, strlen(name)) */ | |
9590837b KT |
497 | u16 const_len; /* = tomoyo_const_part_length(name) */ |
498 | bool is_dir; /* = tomoyo_strendswith(name, "/") */ | |
499 | bool is_patterned; /* = tomoyo_path_contains_pattern(name) */ | |
9590837b KT |
500 | }; |
501 | ||
b5bc60b4 | 502 | /* Structure for holding string data. */ |
e2bf6907 | 503 | struct tomoyo_name { |
0df7e8b8 | 504 | struct tomoyo_shared_acl_head head; |
76bb0895 TH |
505 | struct tomoyo_path_info entry; |
506 | }; | |
9590837b | 507 | |
b5bc60b4 | 508 | /* Structure for holding a word. */ |
7762fbff | 509 | struct tomoyo_name_union { |
b5bc60b4 | 510 | /* Either @filename or @group is NULL. */ |
7762fbff | 511 | const struct tomoyo_path_info *filename; |
a98aa4de | 512 | struct tomoyo_group *group; |
7762fbff TH |
513 | }; |
514 | ||
b5bc60b4 | 515 | /* Structure for holding a number. */ |
4c3e9e2d TH |
516 | struct tomoyo_number_union { |
517 | unsigned long values[2]; | |
b5bc60b4 TH |
518 | struct tomoyo_group *group; /* Maybe NULL. */ |
519 | /* One of values in "enum tomoyo_value_type". */ | |
0df7e8b8 | 520 | u8 value_type[2]; |
4c3e9e2d TH |
521 | }; |
522 | ||
059d84db TH |
523 | /* Structure for holding an IP address. */ |
524 | struct tomoyo_ipaddr_union { | |
525 | struct in6_addr ip[2]; /* Big endian. */ | |
526 | struct tomoyo_group *group; /* Pointer to address group. */ | |
527 | bool is_ipv6; /* Valid only if @group == NULL. */ | |
528 | }; | |
529 | ||
530 | /* Structure for "path_group"/"number_group"/"address_group" directive. */ | |
a98aa4de | 531 | struct tomoyo_group { |
0df7e8b8 | 532 | struct tomoyo_shared_acl_head head; |
4c3e9e2d TH |
533 | const struct tomoyo_path_info *group_name; |
534 | struct list_head member_list; | |
4c3e9e2d TH |
535 | }; |
536 | ||
7762fbff | 537 | /* Structure for "path_group" directive. */ |
a98aa4de | 538 | struct tomoyo_path_group { |
82e0f001 | 539 | struct tomoyo_acl_head head; |
7762fbff TH |
540 | const struct tomoyo_path_info *member_name; |
541 | }; | |
542 | ||
4c3e9e2d | 543 | /* Structure for "number_group" directive. */ |
a98aa4de | 544 | struct tomoyo_number_group { |
82e0f001 | 545 | struct tomoyo_acl_head head; |
4c3e9e2d TH |
546 | struct tomoyo_number_union number; |
547 | }; | |
548 | ||
059d84db TH |
549 | /* Structure for "address_group" directive. */ |
550 | struct tomoyo_address_group { | |
551 | struct tomoyo_acl_head head; | |
552 | /* Structure for holding an IP address. */ | |
553 | struct tomoyo_ipaddr_union address; | |
554 | }; | |
555 | ||
8761afd4 TH |
556 | /* Subset of "struct stat". Used by conditional ACL and audit logs. */ |
557 | struct tomoyo_mini_stat { | |
558 | uid_t uid; | |
559 | gid_t gid; | |
560 | ino_t ino; | |
561 | mode_t mode; | |
562 | dev_t dev; | |
563 | dev_t rdev; | |
564 | }; | |
565 | ||
5b636857 TH |
566 | /* Structure for dumping argv[] and envp[] of "struct linux_binprm". */ |
567 | struct tomoyo_page_dump { | |
568 | struct page *page; /* Previously dumped page. */ | |
569 | char *data; /* Contents of "page". Size is PAGE_SIZE. */ | |
570 | }; | |
571 | ||
8761afd4 TH |
572 | /* Structure for attribute checks in addition to pathname checks. */ |
573 | struct tomoyo_obj_info { | |
574 | /* | |
575 | * True if tomoyo_get_attributes() was already called, false otherwise. | |
576 | */ | |
577 | bool validate_done; | |
578 | /* True if @stat[] is valid. */ | |
579 | bool stat_valid[TOMOYO_MAX_PATH_STAT]; | |
580 | /* First pathname. Initialized with { NULL, NULL } if no path. */ | |
581 | struct path path1; | |
582 | /* Second pathname. Initialized with { NULL, NULL } if no path. */ | |
583 | struct path path2; | |
584 | /* | |
585 | * Information on @path1, @path1's parent directory, @path2, @path2's | |
586 | * parent directory. | |
587 | */ | |
588 | struct tomoyo_mini_stat stat[TOMOYO_MAX_PATH_STAT]; | |
2ca9bf45 TH |
589 | /* |
590 | * Content of symbolic link to be created. NULL for operations other | |
591 | * than symlink(). | |
592 | */ | |
593 | struct tomoyo_path_info *symlink_target; | |
594 | }; | |
595 | ||
5b636857 TH |
596 | /* Structure for argv[]. */ |
597 | struct tomoyo_argv { | |
598 | unsigned long index; | |
599 | const struct tomoyo_path_info *value; | |
600 | bool is_not; | |
601 | }; | |
602 | ||
603 | /* Structure for envp[]. */ | |
604 | struct tomoyo_envp { | |
605 | const struct tomoyo_path_info *name; | |
606 | const struct tomoyo_path_info *value; | |
607 | bool is_not; | |
608 | }; | |
609 | ||
2ca9bf45 TH |
610 | /* Structure for execve() operation. */ |
611 | struct tomoyo_execve { | |
612 | struct tomoyo_request_info r; | |
613 | struct tomoyo_obj_info obj; | |
614 | struct linux_binprm *bprm; | |
5b636857 TH |
615 | /* For dumping argv[] and envp[]. */ |
616 | struct tomoyo_page_dump dump; | |
2ca9bf45 TH |
617 | /* For temporary use. */ |
618 | char *tmp; /* Size is TOMOYO_EXEC_TMPSIZE bytes */ | |
8761afd4 TH |
619 | }; |
620 | ||
2066a361 TH |
621 | /* Structure for entries which follows "struct tomoyo_condition". */ |
622 | struct tomoyo_condition_element { | |
5b636857 TH |
623 | /* |
624 | * Left hand operand. A "struct tomoyo_argv" for TOMOYO_ARGV_ENTRY, a | |
625 | * "struct tomoyo_envp" for TOMOYO_ENVP_ENTRY is attached to the tail | |
626 | * of the array of this struct. | |
627 | */ | |
2066a361 | 628 | u8 left; |
5b636857 TH |
629 | /* |
630 | * Right hand operand. A "struct tomoyo_number_union" for | |
631 | * TOMOYO_NUMBER_UNION, a "struct tomoyo_name_union" for | |
632 | * TOMOYO_NAME_UNION is attached to the tail of the array of this | |
633 | * struct. | |
634 | */ | |
2066a361 TH |
635 | u8 right; |
636 | /* Equation operator. True if equals or overlaps, false otherwise. */ | |
637 | bool equals; | |
638 | }; | |
639 | ||
640 | /* Structure for optional arguments. */ | |
641 | struct tomoyo_condition { | |
642 | struct tomoyo_shared_acl_head head; | |
643 | u32 size; /* Memory size allocated for this entry. */ | |
644 | u16 condc; /* Number of conditions in this struct. */ | |
645 | u16 numbers_count; /* Number of "struct tomoyo_number_union values". */ | |
2ca9bf45 | 646 | u16 names_count; /* Number of "struct tomoyo_name_union names". */ |
5b636857 TH |
647 | u16 argc; /* Number of "struct tomoyo_argv". */ |
648 | u16 envc; /* Number of "struct tomoyo_envp". */ | |
1f067a68 | 649 | u8 grant_log; /* One of values in "enum tomoyo_grant_log". */ |
2066a361 TH |
650 | /* |
651 | * struct tomoyo_condition_element condition[condc]; | |
652 | * struct tomoyo_number_union values[numbers_count]; | |
2ca9bf45 | 653 | * struct tomoyo_name_union names[names_count]; |
5b636857 TH |
654 | * struct tomoyo_argv argv[argc]; |
655 | * struct tomoyo_envp envp[envc]; | |
2066a361 TH |
656 | */ |
657 | }; | |
658 | ||
b5bc60b4 | 659 | /* Common header for individual entries. */ |
9590837b KT |
660 | struct tomoyo_acl_info { |
661 | struct list_head list; | |
2066a361 | 662 | struct tomoyo_condition *cond; /* Maybe NULL. */ |
237ab459 | 663 | bool is_deleted; |
b5bc60b4 | 664 | u8 type; /* One of values in "enum tomoyo_acl_entry_type_index". */ |
9590837b KT |
665 | } __packed; |
666 | ||
b5bc60b4 | 667 | /* Structure for domain information. */ |
9590837b KT |
668 | struct tomoyo_domain_info { |
669 | struct list_head list; | |
670 | struct list_head acl_info_list; | |
671 | /* Name of this domain. Never NULL. */ | |
672 | const struct tomoyo_path_info *domainname; | |
bd03a3e4 TH |
673 | /* Namespace for this domain. Never NULL. */ |
674 | struct tomoyo_policy_namespace *ns; | |
9590837b | 675 | u8 profile; /* Profile number to use. */ |
32997144 | 676 | u8 group; /* Group number to use. */ |
a0558fc3 | 677 | bool is_deleted; /* Delete flag. */ |
2c47ab93 | 678 | bool flags[TOMOYO_MAX_DOMAIN_INFO_FLAGS]; |
ec8e6a4e | 679 | atomic_t users; /* Number of referring credentials. */ |
9590837b KT |
680 | }; |
681 | ||
9590837b | 682 | /* |
b5bc60b4 TH |
683 | * Structure for "file execute", "file read", "file write", "file append", |
684 | * "file unlink", "file getattr", "file rmdir", "file truncate", | |
685 | * "file symlink", "file chroot" and "file unmount" directive. | |
9590837b | 686 | */ |
7ef61233 TH |
687 | struct tomoyo_path_acl { |
688 | struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_PATH_ACL */ | |
b5bc60b4 | 689 | u16 perm; /* Bitmask of values in "enum tomoyo_path_acl_index". */ |
7762fbff | 690 | struct tomoyo_name_union name; |
9590837b KT |
691 | }; |
692 | ||
a1f9bb6a | 693 | /* |
b5bc60b4 TH |
694 | * Structure for "file create", "file mkdir", "file mkfifo", "file mksock", |
695 | * "file ioctl", "file chmod", "file chown" and "file chgrp" directive. | |
a1f9bb6a TH |
696 | */ |
697 | struct tomoyo_path_number_acl { | |
698 | struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_PATH_NUMBER_ACL */ | |
b5bc60b4 | 699 | /* Bitmask of values in "enum tomoyo_path_number_acl_index". */ |
a1f9bb6a TH |
700 | u8 perm; |
701 | struct tomoyo_name_union name; | |
702 | struct tomoyo_number_union number; | |
703 | }; | |
704 | ||
b5bc60b4 | 705 | /* Structure for "file mkblock" and "file mkchar" directive. */ |
75093152 TH |
706 | struct tomoyo_mkdev_acl { |
707 | struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_MKDEV_ACL */ | |
b5bc60b4 | 708 | u8 perm; /* Bitmask of values in "enum tomoyo_mkdev_acl_index". */ |
a1f9bb6a TH |
709 | struct tomoyo_name_union name; |
710 | struct tomoyo_number_union mode; | |
711 | struct tomoyo_number_union major; | |
712 | struct tomoyo_number_union minor; | |
713 | }; | |
714 | ||
c3fa109a | 715 | /* |
b5bc60b4 | 716 | * Structure for "file rename", "file link" and "file pivot_root" directive. |
c3fa109a | 717 | */ |
7ef61233 TH |
718 | struct tomoyo_path2_acl { |
719 | struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_PATH2_ACL */ | |
b5bc60b4 | 720 | u8 perm; /* Bitmask of values in "enum tomoyo_path2_acl_index". */ |
7762fbff TH |
721 | struct tomoyo_name_union name1; |
722 | struct tomoyo_name_union name2; | |
9590837b KT |
723 | }; |
724 | ||
b5bc60b4 | 725 | /* Structure for "file mount" directive. */ |
2106ccd9 TH |
726 | struct tomoyo_mount_acl { |
727 | struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_MOUNT_ACL */ | |
2106ccd9 TH |
728 | struct tomoyo_name_union dev_name; |
729 | struct tomoyo_name_union dir_name; | |
730 | struct tomoyo_name_union fs_type; | |
731 | struct tomoyo_number_union flags; | |
732 | }; | |
733 | ||
d58e0da8 TH |
734 | /* Structure for "misc env" directive in domain policy. */ |
735 | struct tomoyo_env_acl { | |
736 | struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_ENV_ACL */ | |
737 | const struct tomoyo_path_info *env; /* environment variable */ | |
738 | }; | |
739 | ||
059d84db TH |
740 | /* Structure for "network inet" directive. */ |
741 | struct tomoyo_inet_acl { | |
742 | struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_INET_ACL */ | |
743 | u8 protocol; | |
744 | u8 perm; /* Bitmask of values in "enum tomoyo_network_acl_index" */ | |
745 | struct tomoyo_ipaddr_union address; | |
746 | struct tomoyo_number_union port; | |
747 | }; | |
748 | ||
749 | /* Structure for "network unix" directive. */ | |
750 | struct tomoyo_unix_acl { | |
751 | struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_UNIX_ACL */ | |
752 | u8 protocol; | |
753 | u8 perm; /* Bitmask of values in "enum tomoyo_network_acl_index" */ | |
754 | struct tomoyo_name_union name; | |
755 | }; | |
756 | ||
a238cf5b TH |
757 | /* Structure for holding a line from /sys/kernel/security/tomoyo/ interface. */ |
758 | struct tomoyo_acl_param { | |
759 | char *data; | |
760 | struct list_head *list; | |
bd03a3e4 | 761 | struct tomoyo_policy_namespace *ns; |
a238cf5b TH |
762 | bool is_delete; |
763 | }; | |
764 | ||
0d2171d7 | 765 | #define TOMOYO_MAX_IO_READ_QUEUE 64 |
f23571e8 | 766 | |
c3fa109a | 767 | /* |
f23571e8 TH |
768 | * Structure for reading/writing policy via /sys/kernel/security/tomoyo |
769 | * interfaces. | |
c3fa109a | 770 | */ |
9590837b | 771 | struct tomoyo_io_buffer { |
8fbe71f0 | 772 | void (*read) (struct tomoyo_io_buffer *); |
9590837b | 773 | int (*write) (struct tomoyo_io_buffer *); |
17fcfbd9 | 774 | int (*poll) (struct file *file, poll_table *wait); |
9590837b KT |
775 | /* Exclusive lock for this structure. */ |
776 | struct mutex io_sem; | |
f23571e8 | 777 | char __user *read_user_buf; |
2c47ab93 | 778 | size_t read_user_buf_avail; |
f23571e8 | 779 | struct { |
bd03a3e4 | 780 | struct list_head *ns; |
f23571e8 TH |
781 | struct list_head *domain; |
782 | struct list_head *group; | |
783 | struct list_head *acl; | |
2c47ab93 TH |
784 | size_t avail; |
785 | unsigned int step; | |
786 | unsigned int query_index; | |
f23571e8 | 787 | u16 index; |
2066a361 | 788 | u16 cond_index; |
32997144 | 789 | u8 acl_group_index; |
2066a361 | 790 | u8 cond_step; |
f23571e8 TH |
791 | u8 bit; |
792 | u8 w_pos; | |
793 | bool eof; | |
794 | bool print_this_domain_only; | |
bd03a3e4 | 795 | bool print_transition_related_only; |
2066a361 | 796 | bool print_cond_part; |
f23571e8 TH |
797 | const char *w[TOMOYO_MAX_IO_READ_QUEUE]; |
798 | } r; | |
0df7e8b8 | 799 | struct { |
bd03a3e4 | 800 | struct tomoyo_policy_namespace *ns; |
0df7e8b8 TH |
801 | /* The position currently writing to. */ |
802 | struct tomoyo_domain_info *domain; | |
803 | /* Bytes available for writing. */ | |
2c47ab93 | 804 | size_t avail; |
bd03a3e4 | 805 | bool is_delete; |
0df7e8b8 | 806 | } w; |
9590837b KT |
807 | /* Buffer for reading. */ |
808 | char *read_buf; | |
9590837b | 809 | /* Size of read buffer. */ |
2c47ab93 | 810 | size_t readbuf_size; |
9590837b KT |
811 | /* Buffer for writing. */ |
812 | char *write_buf; | |
9590837b | 813 | /* Size of write buffer. */ |
2c47ab93 | 814 | size_t writebuf_size; |
17fcfbd9 | 815 | /* Type of this interface. */ |
2c47ab93 | 816 | enum tomoyo_securityfs_interface_index type; |
2e503bbb TH |
817 | /* Users counter protected by tomoyo_io_buffer_list_lock. */ |
818 | u8 users; | |
819 | /* List for telling GC not to kfree() elements. */ | |
820 | struct list_head list; | |
9590837b KT |
821 | }; |
822 | ||
76bb0895 | 823 | /* |
b5bc60b4 TH |
824 | * Structure for "initialize_domain"/"no_initialize_domain"/"keep_domain"/ |
825 | * "no_keep_domain" keyword. | |
76bb0895 | 826 | */ |
5448ec4f | 827 | struct tomoyo_transition_control { |
82e0f001 | 828 | struct tomoyo_acl_head head; |
5448ec4f | 829 | u8 type; /* One of values in "enum tomoyo_transition_type". */ |
76bb0895 TH |
830 | /* True if the domainname is tomoyo_get_last_name(). */ |
831 | bool is_last_name; | |
5448ec4f TH |
832 | const struct tomoyo_path_info *domainname; /* Maybe NULL */ |
833 | const struct tomoyo_path_info *program; /* Maybe NULL */ | |
76bb0895 TH |
834 | }; |
835 | ||
b5bc60b4 | 836 | /* Structure for "aggregator" keyword. */ |
e2bf6907 | 837 | struct tomoyo_aggregator { |
82e0f001 | 838 | struct tomoyo_acl_head head; |
1084307c TH |
839 | const struct tomoyo_path_info *original_name; |
840 | const struct tomoyo_path_info *aggregated_name; | |
1084307c TH |
841 | }; |
842 | ||
b5bc60b4 | 843 | /* Structure for policy manager. */ |
e2bf6907 | 844 | struct tomoyo_manager { |
82e0f001 TH |
845 | struct tomoyo_acl_head head; |
846 | bool is_domain; /* True if manager is a domainname. */ | |
76bb0895 TH |
847 | /* A path to program or a domainname. */ |
848 | const struct tomoyo_path_info *manager; | |
76bb0895 TH |
849 | }; |
850 | ||
57c2590f TH |
851 | struct tomoyo_preference { |
852 | unsigned int learning_max_entry; | |
853 | bool enforcing_verbose; | |
854 | bool learning_verbose; | |
855 | bool permissive_verbose; | |
856 | }; | |
857 | ||
b5bc60b4 | 858 | /* Structure for /sys/kernel/security/tomnoyo/profile interface. */ |
57c2590f TH |
859 | struct tomoyo_profile { |
860 | const struct tomoyo_path_info *comment; | |
861 | struct tomoyo_preference *learning; | |
862 | struct tomoyo_preference *permissive; | |
863 | struct tomoyo_preference *enforcing; | |
864 | struct tomoyo_preference preference; | |
865 | u8 default_config; | |
866 | u8 config[TOMOYO_MAX_MAC_INDEX + TOMOYO_MAX_MAC_CATEGORY_INDEX]; | |
d5ca1725 | 867 | unsigned int pref[TOMOYO_MAX_PREF]; |
57c2590f TH |
868 | }; |
869 | ||
eadd99cc TH |
870 | /* Structure for representing YYYY/MM/DD hh/mm/ss. */ |
871 | struct tomoyo_time { | |
872 | u16 year; | |
873 | u8 month; | |
874 | u8 day; | |
875 | u8 hour; | |
876 | u8 min; | |
877 | u8 sec; | |
878 | }; | |
879 | ||
bd03a3e4 TH |
880 | /* Structure for policy namespace. */ |
881 | struct tomoyo_policy_namespace { | |
882 | /* Profile table. Memory is allocated as needed. */ | |
883 | struct tomoyo_profile *profile_ptr[TOMOYO_MAX_PROFILES]; | |
884 | /* List of "struct tomoyo_group". */ | |
885 | struct list_head group_list[TOMOYO_MAX_GROUP]; | |
886 | /* List of policy. */ | |
887 | struct list_head policy_list[TOMOYO_MAX_POLICY]; | |
888 | /* The global ACL referred by "use_group" keyword. */ | |
889 | struct list_head acl_group[TOMOYO_MAX_ACL_GROUPS]; | |
890 | /* List for connecting to tomoyo_namespace_list list. */ | |
891 | struct list_head namespace_list; | |
892 | /* Profile version. Currently only 20100903 is defined. */ | |
893 | unsigned int profile_version; | |
894 | /* Name of this namespace (e.g. "<kernel>", "</usr/sbin/httpd>" ). */ | |
895 | const char *name; | |
896 | }; | |
897 | ||
76bb0895 TH |
898 | /********** Function prototypes. **********/ |
899 | ||
059d84db TH |
900 | bool tomoyo_address_matches_group(const bool is_ipv6, const __be32 *address, |
901 | const struct tomoyo_group *group); | |
2106ccd9 TH |
902 | bool tomoyo_compare_number_union(const unsigned long value, |
903 | const struct tomoyo_number_union *ptr); | |
2066a361 TH |
904 | bool tomoyo_condition(struct tomoyo_request_info *r, |
905 | const struct tomoyo_condition *cond); | |
75093152 | 906 | bool tomoyo_correct_domain(const unsigned char *domainname); |
75093152 TH |
907 | bool tomoyo_correct_path(const char *filename); |
908 | bool tomoyo_correct_word(const char *string); | |
75093152 | 909 | bool tomoyo_domain_def(const unsigned char *buffer); |
3ddf17f0 | 910 | bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r); |
5b636857 TH |
911 | bool tomoyo_dump_page(struct linux_binprm *bprm, unsigned long pos, |
912 | struct tomoyo_page_dump *dump); | |
3ddf17f0 | 913 | bool tomoyo_memory_ok(void *ptr); |
4c3e9e2d TH |
914 | bool tomoyo_number_matches_group(const unsigned long min, |
915 | const unsigned long max, | |
a98aa4de | 916 | const struct tomoyo_group *group); |
059d84db TH |
917 | bool tomoyo_parse_ipaddr_union(struct tomoyo_acl_param *param, |
918 | struct tomoyo_ipaddr_union *ptr); | |
3ddf17f0 TH |
919 | bool tomoyo_parse_name_union(struct tomoyo_acl_param *param, |
920 | struct tomoyo_name_union *ptr); | |
a238cf5b TH |
921 | bool tomoyo_parse_number_union(struct tomoyo_acl_param *param, |
922 | struct tomoyo_number_union *ptr); | |
3ddf17f0 TH |
923 | bool tomoyo_path_matches_pattern(const struct tomoyo_path_info *filename, |
924 | const struct tomoyo_path_info *pattern); | |
925 | bool tomoyo_permstr(const char *string, const char *keyword); | |
926 | bool tomoyo_str_starts(char **src, const char *find); | |
927 | char *tomoyo_encode(const char *str); | |
059d84db | 928 | char *tomoyo_encode2(const char *str, int str_len); |
3ddf17f0 TH |
929 | char *tomoyo_init_log(struct tomoyo_request_info *r, int len, const char *fmt, |
930 | va_list args); | |
931 | char *tomoyo_read_token(struct tomoyo_acl_param *param); | |
932 | char *tomoyo_realpath_from_path(struct path *path); | |
933 | char *tomoyo_realpath_nofollow(const char *pathname); | |
934 | const char *tomoyo_get_exe(void); | |
935 | const char *tomoyo_yesno(const unsigned int value); | |
936 | const struct tomoyo_path_info *tomoyo_compare_name_union | |
937 | (const struct tomoyo_path_info *name, const struct tomoyo_name_union *ptr); | |
938 | const struct tomoyo_path_info *tomoyo_get_name(const char *name); | |
939 | const struct tomoyo_path_info *tomoyo_path_matches_group | |
940 | (const struct tomoyo_path_info *pathname, const struct tomoyo_group *group); | |
941 | int tomoyo_check_open_permission(struct tomoyo_domain_info *domain, | |
942 | struct path *path, const int flag); | |
943 | int tomoyo_close_control(struct tomoyo_io_buffer *head); | |
d58e0da8 | 944 | int tomoyo_env_perm(struct tomoyo_request_info *r, const char *env); |
3ddf17f0 TH |
945 | int tomoyo_find_next_domain(struct linux_binprm *bprm); |
946 | int tomoyo_get_mode(const struct tomoyo_policy_namespace *ns, const u8 profile, | |
947 | const u8 index); | |
2106ccd9 | 948 | int tomoyo_init_request_info(struct tomoyo_request_info *r, |
57c2590f TH |
949 | struct tomoyo_domain_info *domain, |
950 | const u8 index); | |
3ddf17f0 TH |
951 | int tomoyo_mkdev_perm(const u8 operation, struct path *path, |
952 | const unsigned int mode, unsigned int dev); | |
b5bc60b4 TH |
953 | int tomoyo_mount_permission(char *dev_name, struct path *path, |
954 | const char *type, unsigned long flags, | |
955 | void *data_page); | |
3ddf17f0 TH |
956 | int tomoyo_open_control(const u8 type, struct file *file); |
957 | int tomoyo_path2_perm(const u8 operation, struct path *path1, | |
958 | struct path *path2); | |
959 | int tomoyo_path_number_perm(const u8 operation, struct path *path, | |
960 | unsigned long number); | |
97fb35e4 TH |
961 | int tomoyo_path_perm(const u8 operation, struct path *path, |
962 | const char *target); | |
3ddf17f0 TH |
963 | int tomoyo_path_permission(struct tomoyo_request_info *r, u8 operation, |
964 | const struct tomoyo_path_info *filename); | |
965 | int tomoyo_poll_control(struct file *file, poll_table *wait); | |
966 | int tomoyo_poll_log(struct file *file, poll_table *wait); | |
059d84db TH |
967 | int tomoyo_socket_bind_permission(struct socket *sock, struct sockaddr *addr, |
968 | int addr_len); | |
969 | int tomoyo_socket_connect_permission(struct socket *sock, | |
970 | struct sockaddr *addr, int addr_len); | |
971 | int tomoyo_socket_listen_permission(struct socket *sock); | |
972 | int tomoyo_socket_sendmsg_permission(struct socket *sock, struct msghdr *msg, | |
973 | int size); | |
3ddf17f0 TH |
974 | int tomoyo_supervisor(struct tomoyo_request_info *r, const char *fmt, ...) |
975 | __printf(2, 3); | |
976 | int tomoyo_update_domain(struct tomoyo_acl_info *new_entry, const int size, | |
977 | struct tomoyo_acl_param *param, | |
978 | bool (*check_duplicate) | |
979 | (const struct tomoyo_acl_info *, | |
980 | const struct tomoyo_acl_info *), | |
981 | bool (*merge_duplicate) | |
982 | (struct tomoyo_acl_info *, struct tomoyo_acl_info *, | |
983 | const bool)); | |
984 | int tomoyo_update_policy(struct tomoyo_acl_head *new_entry, const int size, | |
985 | struct tomoyo_acl_param *param, | |
986 | bool (*check_duplicate) | |
987 | (const struct tomoyo_acl_head *, | |
988 | const struct tomoyo_acl_head *)); | |
a238cf5b | 989 | int tomoyo_write_aggregator(struct tomoyo_acl_param *param); |
a238cf5b TH |
990 | int tomoyo_write_file(struct tomoyo_acl_param *param); |
991 | int tomoyo_write_group(struct tomoyo_acl_param *param, const u8 type); | |
d58e0da8 | 992 | int tomoyo_write_misc(struct tomoyo_acl_param *param); |
059d84db | 993 | int tomoyo_write_inet_network(struct tomoyo_acl_param *param); |
3ddf17f0 TH |
994 | int tomoyo_write_transition_control(struct tomoyo_acl_param *param, |
995 | const u8 type); | |
059d84db | 996 | int tomoyo_write_unix_network(struct tomoyo_acl_param *param); |
3ddf17f0 TH |
997 | ssize_t tomoyo_read_control(struct tomoyo_io_buffer *head, char __user *buffer, |
998 | const int buffer_len); | |
999 | ssize_t tomoyo_write_control(struct tomoyo_io_buffer *head, | |
1000 | const char __user *buffer, const int buffer_len); | |
2066a361 | 1001 | struct tomoyo_condition *tomoyo_get_condition(struct tomoyo_acl_param *param); |
e2bf6907 | 1002 | struct tomoyo_domain_info *tomoyo_assign_domain(const char *domainname, |
bd03a3e4 | 1003 | const bool transit); |
3ddf17f0 | 1004 | struct tomoyo_domain_info *tomoyo_find_domain(const char *domainname); |
a238cf5b TH |
1005 | struct tomoyo_group *tomoyo_get_group(struct tomoyo_acl_param *param, |
1006 | const u8 idx); | |
3ddf17f0 TH |
1007 | struct tomoyo_policy_namespace *tomoyo_assign_namespace |
1008 | (const char *domainname); | |
1009 | struct tomoyo_profile *tomoyo_profile(const struct tomoyo_policy_namespace *ns, | |
1010 | const u8 profile); | |
9590837b KT |
1011 | unsigned int tomoyo_check_flags(const struct tomoyo_domain_info *domain, |
1012 | const u8 index); | |
2066a361 | 1013 | u8 tomoyo_parse_ulong(unsigned long *result, char **str); |
9e4b50e9 | 1014 | void *tomoyo_commit_ok(void *data, const unsigned int size); |
efe836ab | 1015 | void __init tomoyo_load_builtin_policy(void); |
3ddf17f0 | 1016 | void __init tomoyo_mm_init(void); |
99a85259 | 1017 | void tomoyo_check_acl(struct tomoyo_request_info *r, |
484ca79c | 1018 | bool (*check_entry) (struct tomoyo_request_info *, |
99a85259 | 1019 | const struct tomoyo_acl_info *)); |
3ddf17f0 TH |
1020 | void tomoyo_check_profile(void); |
1021 | void tomoyo_convert_time(time_t time, struct tomoyo_time *stamp); | |
2066a361 | 1022 | void tomoyo_del_condition(struct list_head *element); |
3ddf17f0 | 1023 | void tomoyo_fill_path_info(struct tomoyo_path_info *ptr); |
8761afd4 | 1024 | void tomoyo_get_attributes(struct tomoyo_obj_info *obj); |
3ddf17f0 TH |
1025 | void tomoyo_init_policy_namespace(struct tomoyo_policy_namespace *ns); |
1026 | void tomoyo_io_printf(struct tomoyo_io_buffer *head, const char *fmt, ...) | |
1027 | __printf(2, 3); | |
1028 | void tomoyo_load_policy(const char *filename); | |
1029 | void tomoyo_memory_free(void *ptr); | |
1030 | void tomoyo_normalize_line(unsigned char *buffer); | |
1031 | void tomoyo_notify_gc(struct tomoyo_io_buffer *head, const bool is_register); | |
059d84db TH |
1032 | void tomoyo_print_ip(char *buf, const unsigned int size, |
1033 | const struct tomoyo_ipaddr_union *ptr); | |
3ddf17f0 TH |
1034 | void tomoyo_print_ulong(char *buffer, const int buffer_len, |
1035 | const unsigned long value, const u8 type); | |
1036 | void tomoyo_put_name_union(struct tomoyo_name_union *ptr); | |
1037 | void tomoyo_put_number_union(struct tomoyo_number_union *ptr); | |
1038 | void tomoyo_read_log(struct tomoyo_io_buffer *head); | |
1039 | void tomoyo_update_stat(const u8 index); | |
1040 | void tomoyo_warn_oom(const char *function); | |
bd03a3e4 | 1041 | void tomoyo_write_log(struct tomoyo_request_info *r, const char *fmt, ...) |
3ddf17f0 | 1042 | __printf(2, 3); |
eadd99cc TH |
1043 | void tomoyo_write_log2(struct tomoyo_request_info *r, int len, const char *fmt, |
1044 | va_list args); | |
eadd99cc | 1045 | |
76bb0895 TH |
1046 | /********** External variable definitions. **********/ |
1047 | ||
76bb0895 | 1048 | extern bool tomoyo_policy_loaded; |
2066a361 TH |
1049 | extern const char * const tomoyo_condition_keyword |
1050 | [TOMOYO_MAX_CONDITION_KEYWORD]; | |
3ddf17f0 TH |
1051 | extern const char * const tomoyo_dif[TOMOYO_MAX_DOMAIN_INFO_FLAGS]; |
1052 | extern const char * const tomoyo_mac_keywords[TOMOYO_MAX_MAC_INDEX | |
1053 | + TOMOYO_MAX_MAC_CATEGORY_INDEX]; | |
1054 | extern const char * const tomoyo_mode[TOMOYO_CONFIG_MAX_MODE]; | |
2c47ab93 | 1055 | extern const char * const tomoyo_path_keyword[TOMOYO_MAX_PATH_OPERATION]; |
059d84db TH |
1056 | extern const char * const tomoyo_proto_keyword[TOMOYO_SOCK_MAX]; |
1057 | extern const char * const tomoyo_socket_keyword[TOMOYO_MAX_NETWORK_OPERATION]; | |
2c47ab93 | 1058 | extern const u8 tomoyo_index2category[TOMOYO_MAX_MAC_INDEX]; |
3ddf17f0 | 1059 | extern const u8 tomoyo_pn2mac[TOMOYO_MAX_PATH_NUMBER_OPERATION]; |
0d2171d7 TH |
1060 | extern const u8 tomoyo_pnnn2mac[TOMOYO_MAX_MKDEV_OPERATION]; |
1061 | extern const u8 tomoyo_pp2mac[TOMOYO_MAX_PATH2_OPERATION]; | |
2066a361 | 1062 | extern struct list_head tomoyo_condition_list; |
3ddf17f0 TH |
1063 | extern struct list_head tomoyo_domain_list; |
1064 | extern struct list_head tomoyo_name_list[TOMOYO_MAX_HASH]; | |
1065 | extern struct list_head tomoyo_namespace_list; | |
1066 | extern struct mutex tomoyo_policy_lock; | |
1067 | extern struct srcu_struct tomoyo_ss; | |
1068 | extern struct tomoyo_domain_info tomoyo_kernel_domain; | |
1069 | extern struct tomoyo_policy_namespace tomoyo_kernel_namespace; | |
eadd99cc TH |
1070 | extern unsigned int tomoyo_memory_quota[TOMOYO_MAX_MEMORY_STAT]; |
1071 | extern unsigned int tomoyo_memory_used[TOMOYO_MAX_MEMORY_STAT]; | |
17fcfbd9 | 1072 | |
76bb0895 TH |
1073 | /********** Inlined functions. **********/ |
1074 | ||
b5bc60b4 TH |
1075 | /** |
1076 | * tomoyo_read_lock - Take lock for protecting policy. | |
1077 | * | |
1078 | * Returns index number for tomoyo_read_unlock(). | |
1079 | */ | |
76bb0895 TH |
1080 | static inline int tomoyo_read_lock(void) |
1081 | { | |
1082 | return srcu_read_lock(&tomoyo_ss); | |
1083 | } | |
1084 | ||
b5bc60b4 TH |
1085 | /** |
1086 | * tomoyo_read_unlock - Release lock for protecting policy. | |
1087 | * | |
1088 | * @idx: Index number returned by tomoyo_read_lock(). | |
1089 | * | |
1090 | * Returns nothing. | |
1091 | */ | |
76bb0895 TH |
1092 | static inline void tomoyo_read_unlock(int idx) |
1093 | { | |
1094 | srcu_read_unlock(&tomoyo_ss, idx); | |
1095 | } | |
1096 | ||
2066a361 TH |
1097 | /** |
1098 | * tomoyo_sys_getppid - Copy of getppid(). | |
1099 | * | |
1100 | * Returns parent process's PID. | |
1101 | * | |
1102 | * Alpha does not have getppid() defined. To be able to build this module on | |
1103 | * Alpha, I have to copy getppid() from kernel/timer.c. | |
1104 | */ | |
1105 | static inline pid_t tomoyo_sys_getppid(void) | |
1106 | { | |
1107 | pid_t pid; | |
1108 | rcu_read_lock(); | |
1109 | pid = task_tgid_vnr(current->real_parent); | |
1110 | rcu_read_unlock(); | |
1111 | return pid; | |
1112 | } | |
1113 | ||
1114 | /** | |
1115 | * tomoyo_sys_getpid - Copy of getpid(). | |
1116 | * | |
1117 | * Returns current thread's PID. | |
1118 | * | |
1119 | * Alpha does not have getpid() defined. To be able to build this module on | |
1120 | * Alpha, I have to copy getpid() from kernel/timer.c. | |
1121 | */ | |
1122 | static inline pid_t tomoyo_sys_getpid(void) | |
1123 | { | |
1124 | return task_tgid_vnr(current); | |
1125 | } | |
1126 | ||
b5bc60b4 TH |
1127 | /** |
1128 | * tomoyo_pathcmp - strcmp() for "struct tomoyo_path_info" structure. | |
1129 | * | |
1130 | * @a: Pointer to "struct tomoyo_path_info". | |
1131 | * @b: Pointer to "struct tomoyo_path_info". | |
1132 | * | |
1133 | * Returns true if @a == @b, false otherwise. | |
1134 | */ | |
9590837b KT |
1135 | static inline bool tomoyo_pathcmp(const struct tomoyo_path_info *a, |
1136 | const struct tomoyo_path_info *b) | |
1137 | { | |
1138 | return a->hash != b->hash || strcmp(a->name, b->name); | |
1139 | } | |
1140 | ||
b5bc60b4 TH |
1141 | /** |
1142 | * tomoyo_put_name - Drop reference on "struct tomoyo_name". | |
1143 | * | |
1144 | * @name: Pointer to "struct tomoyo_path_info". Maybe NULL. | |
1145 | * | |
1146 | * Returns nothing. | |
1147 | */ | |
76bb0895 TH |
1148 | static inline void tomoyo_put_name(const struct tomoyo_path_info *name) |
1149 | { | |
1150 | if (name) { | |
e2bf6907 TH |
1151 | struct tomoyo_name *ptr = |
1152 | container_of(name, typeof(*ptr), entry); | |
0df7e8b8 | 1153 | atomic_dec(&ptr->head.users); |
76bb0895 TH |
1154 | } |
1155 | } | |
9590837b | 1156 | |
2066a361 TH |
1157 | /** |
1158 | * tomoyo_put_condition - Drop reference on "struct tomoyo_condition". | |
1159 | * | |
1160 | * @cond: Pointer to "struct tomoyo_condition". Maybe NULL. | |
1161 | * | |
1162 | * Returns nothing. | |
1163 | */ | |
1164 | static inline void tomoyo_put_condition(struct tomoyo_condition *cond) | |
1165 | { | |
1166 | if (cond) | |
1167 | atomic_dec(&cond->head.users); | |
1168 | } | |
1169 | ||
b5bc60b4 TH |
1170 | /** |
1171 | * tomoyo_put_group - Drop reference on "struct tomoyo_group". | |
1172 | * | |
1173 | * @group: Pointer to "struct tomoyo_group". Maybe NULL. | |
1174 | * | |
1175 | * Returns nothing. | |
1176 | */ | |
a98aa4de | 1177 | static inline void tomoyo_put_group(struct tomoyo_group *group) |
4c3e9e2d TH |
1178 | { |
1179 | if (group) | |
0df7e8b8 | 1180 | atomic_dec(&group->head.users); |
4c3e9e2d TH |
1181 | } |
1182 | ||
b5bc60b4 TH |
1183 | /** |
1184 | * tomoyo_domain - Get "struct tomoyo_domain_info" for current thread. | |
1185 | * | |
1186 | * Returns pointer to "struct tomoyo_domain_info" for current thread. | |
1187 | */ | |
76bb0895 TH |
1188 | static inline struct tomoyo_domain_info *tomoyo_domain(void) |
1189 | { | |
1190 | return current_cred()->security; | |
1191 | } | |
9590837b | 1192 | |
b5bc60b4 TH |
1193 | /** |
1194 | * tomoyo_real_domain - Get "struct tomoyo_domain_info" for specified thread. | |
1195 | * | |
1196 | * @task: Pointer to "struct task_struct". | |
1197 | * | |
1198 | * Returns pointer to "struct tomoyo_security" for specified thread. | |
1199 | */ | |
76bb0895 TH |
1200 | static inline struct tomoyo_domain_info *tomoyo_real_domain(struct task_struct |
1201 | *task) | |
1202 | { | |
1203 | return task_cred_xxx(task, security); | |
1204 | } | |
9590837b | 1205 | |
b5bc60b4 TH |
1206 | /** |
1207 | * tomoyo_same_name_union - Check for duplicated "struct tomoyo_name_union" entry. | |
1208 | * | |
1209 | * @a: Pointer to "struct tomoyo_name_union". | |
1210 | * @b: Pointer to "struct tomoyo_name_union". | |
1211 | * | |
1212 | * Returns true if @a == @b, false otherwise. | |
1213 | */ | |
75093152 | 1214 | static inline bool tomoyo_same_name_union |
b5bc60b4 | 1215 | (const struct tomoyo_name_union *a, const struct tomoyo_name_union *b) |
7762fbff | 1216 | { |
0df7e8b8 | 1217 | return a->filename == b->filename && a->group == b->group; |
7762fbff TH |
1218 | } |
1219 | ||
b5bc60b4 TH |
1220 | /** |
1221 | * tomoyo_same_number_union - Check for duplicated "struct tomoyo_number_union" entry. | |
1222 | * | |
1223 | * @a: Pointer to "struct tomoyo_number_union". | |
1224 | * @b: Pointer to "struct tomoyo_number_union". | |
1225 | * | |
1226 | * Returns true if @a == @b, false otherwise. | |
1227 | */ | |
75093152 | 1228 | static inline bool tomoyo_same_number_union |
b5bc60b4 | 1229 | (const struct tomoyo_number_union *a, const struct tomoyo_number_union *b) |
4c3e9e2d | 1230 | { |
b5bc60b4 | 1231 | return a->values[0] == b->values[0] && a->values[1] == b->values[1] && |
0df7e8b8 TH |
1232 | a->group == b->group && a->value_type[0] == b->value_type[0] && |
1233 | a->value_type[1] == b->value_type[1]; | |
4c3e9e2d TH |
1234 | } |
1235 | ||
059d84db TH |
1236 | /** |
1237 | * tomoyo_same_ipaddr_union - Check for duplicated "struct tomoyo_ipaddr_union" entry. | |
1238 | * | |
1239 | * @a: Pointer to "struct tomoyo_ipaddr_union". | |
1240 | * @b: Pointer to "struct tomoyo_ipaddr_union". | |
1241 | * | |
1242 | * Returns true if @a == @b, false otherwise. | |
1243 | */ | |
1244 | static inline bool tomoyo_same_ipaddr_union | |
1245 | (const struct tomoyo_ipaddr_union *a, const struct tomoyo_ipaddr_union *b) | |
1246 | { | |
1247 | return !memcmp(a->ip, b->ip, sizeof(a->ip)) && a->group == b->group && | |
1248 | a->is_ipv6 == b->is_ipv6; | |
1249 | } | |
1250 | ||
bd03a3e4 TH |
1251 | /** |
1252 | * tomoyo_current_namespace - Get "struct tomoyo_policy_namespace" for current thread. | |
1253 | * | |
1254 | * Returns pointer to "struct tomoyo_policy_namespace" for current thread. | |
1255 | */ | |
1256 | static inline struct tomoyo_policy_namespace *tomoyo_current_namespace(void) | |
1257 | { | |
1258 | return tomoyo_domain()->ns; | |
1259 | } | |
1260 | ||
eadd99cc TH |
1261 | #if defined(CONFIG_SLOB) |
1262 | ||
1263 | /** | |
1264 | * tomoyo_round2 - Round up to power of 2 for calculating memory usage. | |
1265 | * | |
1266 | * @size: Size to be rounded up. | |
1267 | * | |
1268 | * Returns @size. | |
1269 | * | |
1270 | * Since SLOB does not round up, this function simply returns @size. | |
1271 | */ | |
1272 | static inline int tomoyo_round2(size_t size) | |
1273 | { | |
1274 | return size; | |
1275 | } | |
1276 | ||
1277 | #else | |
1278 | ||
1279 | /** | |
1280 | * tomoyo_round2 - Round up to power of 2 for calculating memory usage. | |
1281 | * | |
1282 | * @size: Size to be rounded up. | |
1283 | * | |
1284 | * Returns rounded size. | |
1285 | * | |
1286 | * Strictly speaking, SLAB may be able to allocate (e.g.) 96 bytes instead of | |
1287 | * (e.g.) 128 bytes. | |
1288 | */ | |
1289 | static inline int tomoyo_round2(size_t size) | |
1290 | { | |
1291 | #if PAGE_SIZE == 4096 | |
1292 | size_t bsize = 32; | |
1293 | #else | |
1294 | size_t bsize = 64; | |
1295 | #endif | |
1296 | if (!size) | |
1297 | return 0; | |
1298 | while (size > bsize) | |
1299 | bsize <<= 1; | |
1300 | return bsize; | |
1301 | } | |
1302 | ||
1303 | #endif | |
1304 | ||
9590837b KT |
1305 | /** |
1306 | * list_for_each_cookie - iterate over a list with cookie. | |
1307 | * @pos: the &struct list_head to use as a loop cursor. | |
9590837b | 1308 | * @head: the head for your list. |
9590837b | 1309 | */ |
475e6fa3 TH |
1310 | #define list_for_each_cookie(pos, head) \ |
1311 | if (!pos) \ | |
1312 | pos = srcu_dereference((head)->next, &tomoyo_ss); \ | |
1313 | for ( ; pos != (head); pos = srcu_dereference(pos->next, &tomoyo_ss)) | |
fdb8ebb7 | 1314 | |
9590837b | 1315 | #endif /* !defined(_SECURITY_TOMOYO_COMMON_H) */ |