2 * security/tomoyo/common.h
4 * Header file for TOMOYO.
6 * Copyright (C) 2005-2010 NTT DATA CORPORATION
9 #ifndef _SECURITY_TOMOYO_COMMON_H
10 #define _SECURITY_TOMOYO_COMMON_H
12 #include <linux/ctype.h>
13 #include <linux/string.h>
15 #include <linux/file.h>
16 #include <linux/kmod.h>
18 #include <linux/sched.h>
19 #include <linux/namei.h>
20 #include <linux/mount.h>
21 #include <linux/list.h>
22 #include <linux/cred.h>
23 #include <linux/poll.h>
26 /********** Constants definitions. **********/
29 * TOMOYO uses this hash only when appending a string into the string
30 * table. Frequency of appending strings is very low. So we don't need
31 * large (e.g. 64k) hash size. 256 will be sufficient.
33 #define TOMOYO_HASH_BITS 8
34 #define TOMOYO_MAX_HASH (1u<<TOMOYO_HASH_BITS)
36 #define TOMOYO_EXEC_TMPSIZE 4096
38 /* Profile number is an integer between 0 and 255. */
39 #define TOMOYO_MAX_PROFILES 256
41 /* Index numbers for operation mode. */
42 enum tomoyo_mode_index {
43 TOMOYO_CONFIG_DISABLED,
44 TOMOYO_CONFIG_LEARNING,
45 TOMOYO_CONFIG_PERMISSIVE,
46 TOMOYO_CONFIG_ENFORCING,
47 TOMOYO_CONFIG_USE_DEFAULT = 255
50 /* Index numbers for entry type. */
51 enum tomoyo_policy_id {
54 TOMOYO_ID_NUMBER_GROUP,
55 TOMOYO_ID_TRANSITION_CONTROL,
64 /* Index numbers for group entries. */
65 enum tomoyo_group_id {
71 /* A domain definition starts with <kernel>. */
72 #define TOMOYO_ROOT_NAME "<kernel>"
73 #define TOMOYO_ROOT_NAME_LEN (sizeof(TOMOYO_ROOT_NAME) - 1)
75 /* Index numbers for type of numeric values. */
76 enum tomoyo_value_type {
77 TOMOYO_VALUE_TYPE_INVALID,
78 TOMOYO_VALUE_TYPE_DECIMAL,
79 TOMOYO_VALUE_TYPE_OCTAL,
80 TOMOYO_VALUE_TYPE_HEXADECIMAL,
83 /* Index numbers for domain transition control keywords. */
84 enum tomoyo_transition_type {
85 /* Do not change this order, */
86 TOMOYO_TRANSITION_CONTROL_NO_INITIALIZE,
87 TOMOYO_TRANSITION_CONTROL_INITIALIZE,
88 TOMOYO_TRANSITION_CONTROL_NO_KEEP,
89 TOMOYO_TRANSITION_CONTROL_KEEP,
90 TOMOYO_MAX_TRANSITION_TYPE
93 /* Index numbers for Access Controls. */
94 enum tomoyo_acl_entry_type_index {
96 TOMOYO_TYPE_PATH2_ACL,
97 TOMOYO_TYPE_PATH_NUMBER_ACL,
98 TOMOYO_TYPE_MKDEV_ACL,
99 TOMOYO_TYPE_MOUNT_ACL,
102 /* Index numbers for access controls with one pathname. */
103 enum tomoyo_path_acl_index {
111 TOMOYO_TYPE_TRUNCATE,
115 TOMOYO_MAX_PATH_OPERATION
118 enum tomoyo_mkdev_acl_index {
121 TOMOYO_MAX_MKDEV_OPERATION
124 /* Index numbers for access controls with two pathnames. */
125 enum tomoyo_path2_acl_index {
128 TOMOYO_TYPE_PIVOT_ROOT,
129 TOMOYO_MAX_PATH2_OPERATION
132 /* Index numbers for access controls with one pathname and one number. */
133 enum tomoyo_path_number_acl_index {
142 TOMOYO_MAX_PATH_NUMBER_OPERATION
145 /* Index numbers for /sys/kernel/security/tomoyo/ interfaces. */
146 enum tomoyo_securityfs_interface_index {
148 TOMOYO_EXCEPTIONPOLICY,
149 TOMOYO_DOMAIN_STATUS,
150 TOMOYO_PROCESS_STATUS,
159 /* Index numbers for special mount operations. */
160 enum tomoyo_special_mount {
161 TOMOYO_MOUNT_BIND, /* mount --bind /source /dest */
162 TOMOYO_MOUNT_MOVE, /* mount --move /old /new */
163 TOMOYO_MOUNT_REMOUNT, /* mount -o remount /dir */
164 TOMOYO_MOUNT_MAKE_UNBINDABLE, /* mount --make-unbindable /dir */
165 TOMOYO_MOUNT_MAKE_PRIVATE, /* mount --make-private /dir */
166 TOMOYO_MOUNT_MAKE_SLAVE, /* mount --make-slave /dir */
167 TOMOYO_MOUNT_MAKE_SHARED, /* mount --make-shared /dir */
168 TOMOYO_MAX_SPECIAL_MOUNT
171 /* Index numbers for functionality. */
172 enum tomoyo_mac_index {
173 TOMOYO_MAC_FILE_EXECUTE,
174 TOMOYO_MAC_FILE_OPEN,
175 TOMOYO_MAC_FILE_CREATE,
176 TOMOYO_MAC_FILE_UNLINK,
177 TOMOYO_MAC_FILE_GETATTR,
178 TOMOYO_MAC_FILE_MKDIR,
179 TOMOYO_MAC_FILE_RMDIR,
180 TOMOYO_MAC_FILE_MKFIFO,
181 TOMOYO_MAC_FILE_MKSOCK,
182 TOMOYO_MAC_FILE_TRUNCATE,
183 TOMOYO_MAC_FILE_SYMLINK,
184 TOMOYO_MAC_FILE_MKBLOCK,
185 TOMOYO_MAC_FILE_MKCHAR,
186 TOMOYO_MAC_FILE_LINK,
187 TOMOYO_MAC_FILE_RENAME,
188 TOMOYO_MAC_FILE_CHMOD,
189 TOMOYO_MAC_FILE_CHOWN,
190 TOMOYO_MAC_FILE_CHGRP,
191 TOMOYO_MAC_FILE_IOCTL,
192 TOMOYO_MAC_FILE_CHROOT,
193 TOMOYO_MAC_FILE_MOUNT,
194 TOMOYO_MAC_FILE_UMOUNT,
195 TOMOYO_MAC_FILE_PIVOT_ROOT,
199 /* Index numbers for category of functionality. */
200 enum tomoyo_mac_category_index {
201 TOMOYO_MAC_CATEGORY_FILE,
202 TOMOYO_MAX_MAC_CATEGORY_INDEX
206 * Retry this request. Returned by tomoyo_supervisor() if policy violation has
207 * occurred in enforcing mode and the userspace daemon decided to retry.
209 * We must choose a positive value in order to distinguish "granted" (which is
210 * 0) and "rejected" (which is a negative value) and "retry".
212 #define TOMOYO_RETRY_REQUEST 1
214 /********** Structure definitions. **********/
216 /* Common header for holding ACL entries. */
217 struct tomoyo_acl_head {
218 struct list_head list;
222 /* Common header for shared entries. */
223 struct tomoyo_shared_acl_head {
224 struct list_head list;
228 /* Structure for request info. */
229 struct tomoyo_request_info {
230 struct tomoyo_domain_info *domain;
231 /* For holding parameters. */
234 const struct tomoyo_path_info *filename;
235 /* For using wildcards at tomoyo_find_next_domain(). */
236 const struct tomoyo_path_info *matched_path;
237 /* One of values in "enum tomoyo_path_acl_index". */
241 const struct tomoyo_path_info *filename1;
242 const struct tomoyo_path_info *filename2;
243 /* One of values in "enum tomoyo_path2_acl_index". */
247 const struct tomoyo_path_info *filename;
251 /* One of values in "enum tomoyo_mkdev_acl_index". */
255 const struct tomoyo_path_info *filename;
256 unsigned long number;
259 * "enum tomoyo_path_number_acl_index".
264 const struct tomoyo_path_info *type;
265 const struct tomoyo_path_info *dir;
266 const struct tomoyo_path_info *dev;
275 u8 mode; /* One of tomoyo_mode_index . */
279 /* Structure for holding a token. */
280 struct tomoyo_path_info {
282 u32 hash; /* = full_name_hash(name, strlen(name)) */
283 u16 const_len; /* = tomoyo_const_part_length(name) */
284 bool is_dir; /* = tomoyo_strendswith(name, "/") */
285 bool is_patterned; /* = tomoyo_path_contains_pattern(name) */
288 /* Structure for holding string data. */
290 struct tomoyo_shared_acl_head head;
291 struct tomoyo_path_info entry;
294 /* Structure for holding a word. */
295 struct tomoyo_name_union {
296 /* Either @filename or @group is NULL. */
297 const struct tomoyo_path_info *filename;
298 struct tomoyo_group *group;
301 /* Structure for holding a number. */
302 struct tomoyo_number_union {
303 unsigned long values[2];
304 struct tomoyo_group *group; /* Maybe NULL. */
305 /* One of values in "enum tomoyo_value_type". */
309 /* Structure for "path_group"/"number_group" directive. */
310 struct tomoyo_group {
311 struct tomoyo_shared_acl_head head;
312 const struct tomoyo_path_info *group_name;
313 struct list_head member_list;
316 /* Structure for "path_group" directive. */
317 struct tomoyo_path_group {
318 struct tomoyo_acl_head head;
319 const struct tomoyo_path_info *member_name;
322 /* Structure for "number_group" directive. */
323 struct tomoyo_number_group {
324 struct tomoyo_acl_head head;
325 struct tomoyo_number_union number;
328 /* Common header for individual entries. */
329 struct tomoyo_acl_info {
330 struct list_head list;
332 u8 type; /* One of values in "enum tomoyo_acl_entry_type_index". */
335 /* Structure for domain information. */
336 struct tomoyo_domain_info {
337 struct list_head list;
338 struct list_head acl_info_list;
339 /* Name of this domain. Never NULL. */
340 const struct tomoyo_path_info *domainname;
341 u8 profile; /* Profile number to use. */
342 bool is_deleted; /* Delete flag. */
343 bool quota_warned; /* Quota warnning flag. */
344 bool transition_failed; /* Domain transition failed flag. */
345 atomic_t users; /* Number of referring credentials. */
349 * Structure for "file execute", "file read", "file write", "file append",
350 * "file unlink", "file getattr", "file rmdir", "file truncate",
351 * "file symlink", "file chroot" and "file unmount" directive.
353 struct tomoyo_path_acl {
354 struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_PATH_ACL */
355 u16 perm; /* Bitmask of values in "enum tomoyo_path_acl_index". */
356 struct tomoyo_name_union name;
360 * Structure for "file create", "file mkdir", "file mkfifo", "file mksock",
361 * "file ioctl", "file chmod", "file chown" and "file chgrp" directive.
363 struct tomoyo_path_number_acl {
364 struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_PATH_NUMBER_ACL */
365 /* Bitmask of values in "enum tomoyo_path_number_acl_index". */
367 struct tomoyo_name_union name;
368 struct tomoyo_number_union number;
371 /* Structure for "file mkblock" and "file mkchar" directive. */
372 struct tomoyo_mkdev_acl {
373 struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_MKDEV_ACL */
374 u8 perm; /* Bitmask of values in "enum tomoyo_mkdev_acl_index". */
375 struct tomoyo_name_union name;
376 struct tomoyo_number_union mode;
377 struct tomoyo_number_union major;
378 struct tomoyo_number_union minor;
382 * Structure for "file rename", "file link" and "file pivot_root" directive.
384 struct tomoyo_path2_acl {
385 struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_PATH2_ACL */
386 u8 perm; /* Bitmask of values in "enum tomoyo_path2_acl_index". */
387 struct tomoyo_name_union name1;
388 struct tomoyo_name_union name2;
391 /* Structure for "file mount" directive. */
392 struct tomoyo_mount_acl {
393 struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_MOUNT_ACL */
394 struct tomoyo_name_union dev_name;
395 struct tomoyo_name_union dir_name;
396 struct tomoyo_name_union fs_type;
397 struct tomoyo_number_union flags;
400 /* Structure for holding a line from /sys/kernel/security/tomoyo/ interface. */
401 struct tomoyo_acl_param {
403 struct list_head *list;
407 #define TOMOYO_MAX_IO_READ_QUEUE 64
410 * Structure for reading/writing policy via /sys/kernel/security/tomoyo
413 struct tomoyo_io_buffer {
414 void (*read) (struct tomoyo_io_buffer *);
415 int (*write) (struct tomoyo_io_buffer *);
416 int (*poll) (struct file *file, poll_table *wait);
417 /* Exclusive lock for this structure. */
419 /* Index returned by tomoyo_read_lock(). */
421 char __user *read_user_buf;
422 int read_user_buf_avail;
424 struct list_head *domain;
425 struct list_head *group;
426 struct list_head *acl;
434 bool print_this_domain_only;
435 bool print_execute_only;
436 const char *w[TOMOYO_MAX_IO_READ_QUEUE];
439 /* The position currently writing to. */
440 struct tomoyo_domain_info *domain;
441 /* Bytes available for writing. */
444 /* Buffer for reading. */
446 /* Size of read buffer. */
448 /* Buffer for writing. */
450 /* Size of write buffer. */
452 /* Type of this interface. */
457 * Structure for "initialize_domain"/"no_initialize_domain"/"keep_domain"/
458 * "no_keep_domain" keyword.
460 struct tomoyo_transition_control {
461 struct tomoyo_acl_head head;
462 u8 type; /* One of values in "enum tomoyo_transition_type". */
463 /* True if the domainname is tomoyo_get_last_name(). */
465 const struct tomoyo_path_info *domainname; /* Maybe NULL */
466 const struct tomoyo_path_info *program; /* Maybe NULL */
469 /* Structure for "aggregator" keyword. */
470 struct tomoyo_aggregator {
471 struct tomoyo_acl_head head;
472 const struct tomoyo_path_info *original_name;
473 const struct tomoyo_path_info *aggregated_name;
476 /* Structure for policy manager. */
477 struct tomoyo_manager {
478 struct tomoyo_acl_head head;
479 bool is_domain; /* True if manager is a domainname. */
480 /* A path to program or a domainname. */
481 const struct tomoyo_path_info *manager;
484 struct tomoyo_preference {
485 unsigned int learning_max_entry;
486 bool enforcing_verbose;
487 bool learning_verbose;
488 bool permissive_verbose;
491 /* Structure for /sys/kernel/security/tomnoyo/profile interface. */
492 struct tomoyo_profile {
493 const struct tomoyo_path_info *comment;
494 struct tomoyo_preference *learning;
495 struct tomoyo_preference *permissive;
496 struct tomoyo_preference *enforcing;
497 struct tomoyo_preference preference;
499 u8 config[TOMOYO_MAX_MAC_INDEX + TOMOYO_MAX_MAC_CATEGORY_INDEX];
502 /********** Function prototypes. **********/
504 bool tomoyo_str_starts(char **src, const char *find);
505 const char *tomoyo_get_exe(void);
506 void tomoyo_normalize_line(unsigned char *buffer);
507 void tomoyo_warn_log(struct tomoyo_request_info *r, const char *fmt, ...)
508 __attribute__ ((format(printf, 2, 3)));
509 void tomoyo_check_profile(void);
510 int tomoyo_open_control(const u8 type, struct file *file);
511 int tomoyo_close_control(struct tomoyo_io_buffer *head);
512 int tomoyo_poll_control(struct file *file, poll_table *wait);
513 int tomoyo_read_control(struct tomoyo_io_buffer *head, char __user *buffer,
514 const int buffer_len);
515 int tomoyo_write_control(struct tomoyo_io_buffer *head,
516 const char __user *buffer, const int buffer_len);
517 bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r);
518 void tomoyo_warn_oom(const char *function);
519 const struct tomoyo_path_info *
520 tomoyo_compare_name_union(const struct tomoyo_path_info *name,
521 const struct tomoyo_name_union *ptr);
522 bool tomoyo_compare_number_union(const unsigned long value,
523 const struct tomoyo_number_union *ptr);
524 int tomoyo_get_mode(const u8 profile, const u8 index);
525 void tomoyo_io_printf(struct tomoyo_io_buffer *head, const char *fmt, ...)
526 __attribute__ ((format(printf, 2, 3)));
527 bool tomoyo_correct_domain(const unsigned char *domainname);
528 bool tomoyo_correct_path(const char *filename);
529 bool tomoyo_correct_word(const char *string);
530 bool tomoyo_domain_def(const unsigned char *buffer);
531 bool tomoyo_parse_name_union(struct tomoyo_acl_param *param,
532 struct tomoyo_name_union *ptr);
533 const struct tomoyo_path_info *
534 tomoyo_path_matches_group(const struct tomoyo_path_info *pathname,
535 const struct tomoyo_group *group);
536 bool tomoyo_number_matches_group(const unsigned long min,
537 const unsigned long max,
538 const struct tomoyo_group *group);
539 bool tomoyo_path_matches_pattern(const struct tomoyo_path_info *filename,
540 const struct tomoyo_path_info *pattern);
541 bool tomoyo_parse_number_union(struct tomoyo_acl_param *param,
542 struct tomoyo_number_union *ptr);
543 bool tomoyo_tokenize(char *buffer, char *w[], size_t size);
544 bool tomoyo_verbose_mode(const struct tomoyo_domain_info *domain);
545 int tomoyo_init_request_info(struct tomoyo_request_info *r,
546 struct tomoyo_domain_info *domain,
548 int tomoyo_mount_permission(char *dev_name, struct path *path,
549 const char *type, unsigned long flags,
551 int tomoyo_write_aggregator(struct tomoyo_acl_param *param);
552 int tomoyo_write_transition_control(struct tomoyo_acl_param *param,
554 int tomoyo_write_file(struct tomoyo_acl_param *param);
555 int tomoyo_write_group(struct tomoyo_acl_param *param, const u8 type);
556 int tomoyo_supervisor(struct tomoyo_request_info *r, const char *fmt, ...)
557 __attribute__ ((format(printf, 2, 3)));
558 struct tomoyo_domain_info *tomoyo_find_domain(const char *domainname);
559 struct tomoyo_domain_info *tomoyo_assign_domain(const char *domainname,
561 struct tomoyo_profile *tomoyo_profile(const u8 profile);
562 struct tomoyo_group *tomoyo_get_group(struct tomoyo_acl_param *param,
564 unsigned int tomoyo_check_flags(const struct tomoyo_domain_info *domain,
566 void tomoyo_fill_path_info(struct tomoyo_path_info *ptr);
567 void tomoyo_load_policy(const char *filename);
568 void tomoyo_put_number_union(struct tomoyo_number_union *ptr);
569 char *tomoyo_encode(const char *str);
570 char *tomoyo_realpath_nofollow(const char *pathname);
571 char *tomoyo_realpath_from_path(struct path *path);
572 bool tomoyo_memory_ok(void *ptr);
573 void *tomoyo_commit_ok(void *data, const unsigned int size);
574 const struct tomoyo_path_info *tomoyo_get_name(const char *name);
575 void tomoyo_read_memory_counter(struct tomoyo_io_buffer *head);
576 int tomoyo_write_memory_quota(struct tomoyo_io_buffer *head);
577 void __init tomoyo_mm_init(void);
578 int tomoyo_path_permission(struct tomoyo_request_info *r, u8 operation,
579 const struct tomoyo_path_info *filename);
580 int tomoyo_check_open_permission(struct tomoyo_domain_info *domain,
581 struct path *path, const int flag);
582 int tomoyo_path_number_perm(const u8 operation, struct path *path,
583 unsigned long number);
584 int tomoyo_mkdev_perm(const u8 operation, struct path *path,
585 const unsigned int mode, unsigned int dev);
586 int tomoyo_path_perm(const u8 operation, struct path *path);
587 int tomoyo_path2_perm(const u8 operation, struct path *path1,
589 int tomoyo_find_next_domain(struct linux_binprm *bprm);
590 void tomoyo_print_ulong(char *buffer, const int buffer_len,
591 const unsigned long value, const u8 type);
592 void tomoyo_put_name_union(struct tomoyo_name_union *ptr);
593 void tomoyo_run_gc(void);
594 void tomoyo_memory_free(void *ptr);
595 int tomoyo_update_domain(struct tomoyo_acl_info *new_entry, const int size,
596 struct tomoyo_acl_param *param,
597 bool (*check_duplicate) (const struct tomoyo_acl_info
599 const struct tomoyo_acl_info
601 bool (*merge_duplicate) (struct tomoyo_acl_info *,
602 struct tomoyo_acl_info *,
604 int tomoyo_update_policy(struct tomoyo_acl_head *new_entry, const int size,
605 struct tomoyo_acl_param *param,
606 bool (*check_duplicate) (const struct tomoyo_acl_head
608 const struct tomoyo_acl_head
610 void tomoyo_check_acl(struct tomoyo_request_info *r,
611 bool (*check_entry) (struct tomoyo_request_info *,
612 const struct tomoyo_acl_info *));
613 char *tomoyo_read_token(struct tomoyo_acl_param *param);
614 bool tomoyo_permstr(const char *string, const char *keyword);
616 /********** External variable definitions. **********/
619 extern struct srcu_struct tomoyo_ss;
621 /* The list for "struct tomoyo_domain_info". */
622 extern struct list_head tomoyo_domain_list;
624 extern struct list_head tomoyo_policy_list[TOMOYO_MAX_POLICY];
625 extern struct list_head tomoyo_group_list[TOMOYO_MAX_GROUP];
626 extern struct list_head tomoyo_name_list[TOMOYO_MAX_HASH];
628 /* Lock for protecting policy. */
629 extern struct mutex tomoyo_policy_lock;
631 /* Has /sbin/init started? */
632 extern bool tomoyo_policy_loaded;
634 /* The kernel's domain. */
635 extern struct tomoyo_domain_info tomoyo_kernel_domain;
637 extern const char *tomoyo_path_keyword[TOMOYO_MAX_PATH_OPERATION];
638 extern const char *tomoyo_mkdev_keyword[TOMOYO_MAX_MKDEV_OPERATION];
639 extern const char *tomoyo_path2_keyword[TOMOYO_MAX_PATH2_OPERATION];
640 extern const char *tomoyo_path_number_keyword[TOMOYO_MAX_PATH_NUMBER_OPERATION];
642 extern const u8 tomoyo_pnnn2mac[TOMOYO_MAX_MKDEV_OPERATION];
643 extern const u8 tomoyo_pp2mac[TOMOYO_MAX_PATH2_OPERATION];
644 extern const u8 tomoyo_pn2mac[TOMOYO_MAX_PATH_NUMBER_OPERATION];
646 extern unsigned int tomoyo_quota_for_query;
647 extern unsigned int tomoyo_query_memory_size;
649 /********** Inlined functions. **********/
652 * tomoyo_read_lock - Take lock for protecting policy.
654 * Returns index number for tomoyo_read_unlock().
656 static inline int tomoyo_read_lock(void)
658 return srcu_read_lock(&tomoyo_ss);
662 * tomoyo_read_unlock - Release lock for protecting policy.
664 * @idx: Index number returned by tomoyo_read_lock().
668 static inline void tomoyo_read_unlock(int idx)
670 srcu_read_unlock(&tomoyo_ss, idx);
674 * tomoyo_pathcmp - strcmp() for "struct tomoyo_path_info" structure.
676 * @a: Pointer to "struct tomoyo_path_info".
677 * @b: Pointer to "struct tomoyo_path_info".
679 * Returns true if @a == @b, false otherwise.
681 static inline bool tomoyo_pathcmp(const struct tomoyo_path_info *a,
682 const struct tomoyo_path_info *b)
684 return a->hash != b->hash || strcmp(a->name, b->name);
688 * tomoyo_put_name - Drop reference on "struct tomoyo_name".
690 * @name: Pointer to "struct tomoyo_path_info". Maybe NULL.
694 static inline void tomoyo_put_name(const struct tomoyo_path_info *name)
697 struct tomoyo_name *ptr =
698 container_of(name, typeof(*ptr), entry);
699 atomic_dec(&ptr->head.users);
704 * tomoyo_put_group - Drop reference on "struct tomoyo_group".
706 * @group: Pointer to "struct tomoyo_group". Maybe NULL.
710 static inline void tomoyo_put_group(struct tomoyo_group *group)
713 atomic_dec(&group->head.users);
717 * tomoyo_domain - Get "struct tomoyo_domain_info" for current thread.
719 * Returns pointer to "struct tomoyo_domain_info" for current thread.
721 static inline struct tomoyo_domain_info *tomoyo_domain(void)
723 return current_cred()->security;
727 * tomoyo_real_domain - Get "struct tomoyo_domain_info" for specified thread.
729 * @task: Pointer to "struct task_struct".
731 * Returns pointer to "struct tomoyo_security" for specified thread.
733 static inline struct tomoyo_domain_info *tomoyo_real_domain(struct task_struct
736 return task_cred_xxx(task, security);
740 * tomoyo_same_name_union - Check for duplicated "struct tomoyo_name_union" entry.
742 * @a: Pointer to "struct tomoyo_name_union".
743 * @b: Pointer to "struct tomoyo_name_union".
745 * Returns true if @a == @b, false otherwise.
747 static inline bool tomoyo_same_name_union
748 (const struct tomoyo_name_union *a, const struct tomoyo_name_union *b)
750 return a->filename == b->filename && a->group == b->group;
754 * tomoyo_same_number_union - Check for duplicated "struct tomoyo_number_union" entry.
756 * @a: Pointer to "struct tomoyo_number_union".
757 * @b: Pointer to "struct tomoyo_number_union".
759 * Returns true if @a == @b, false otherwise.
761 static inline bool tomoyo_same_number_union
762 (const struct tomoyo_number_union *a, const struct tomoyo_number_union *b)
764 return a->values[0] == b->values[0] && a->values[1] == b->values[1] &&
765 a->group == b->group && a->value_type[0] == b->value_type[0] &&
766 a->value_type[1] == b->value_type[1];
770 * list_for_each_cookie - iterate over a list with cookie.
771 * @pos: the &struct list_head to use as a loop cursor.
772 * @head: the head for your list.
774 #define list_for_each_cookie(pos, head) \
776 pos = srcu_dereference((head)->next, &tomoyo_ss); \
777 for ( ; pos != (head); pos = srcu_dereference(pos->next, &tomoyo_ss))
779 #endif /* !defined(_SECURITY_TOMOYO_COMMON_H) */