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