1 // SPDX-License-Identifier: GPL-2.0
3 * security/tomoyo/condition.c
5 * Copyright (C) 2005-2011 NTT DATA CORPORATION
9 #include <linux/slab.h>
11 /* List of "struct tomoyo_condition". */
12 LIST_HEAD(tomoyo_condition_list);
15 * tomoyo_argv - Check argv[] in "struct linux_binbrm".
17 * @index: Index number of @arg_ptr.
18 * @arg_ptr: Contents of argv[@index].
19 * @argc: Length of @argv.
20 * @argv: Pointer to "struct tomoyo_argv".
21 * @checked: Set to true if @argv[@index] was found.
23 * Returns true on success, false otherwise.
25 static bool tomoyo_argv(const unsigned int index, const char *arg_ptr,
26 const int argc, const struct tomoyo_argv *argv,
30 struct tomoyo_path_info arg;
32 for (i = 0; i < argc; argv++, checked++, i++) {
34 if (index != argv->index)
37 tomoyo_fill_path_info(&arg);
38 result = tomoyo_path_matches_pattern(&arg, argv->value);
48 * tomoyo_envp - Check envp[] in "struct linux_binbrm".
50 * @env_name: The name of environment variable.
51 * @env_value: The value of environment variable.
52 * @envc: Length of @envp.
53 * @envp: Pointer to "struct tomoyo_envp".
54 * @checked: Set to true if @envp[@env_name] was found.
56 * Returns true on success, false otherwise.
58 static bool tomoyo_envp(const char *env_name, const char *env_value,
59 const int envc, const struct tomoyo_envp *envp,
63 struct tomoyo_path_info name;
64 struct tomoyo_path_info value;
66 tomoyo_fill_path_info(&name);
67 value.name = env_value;
68 tomoyo_fill_path_info(&value);
69 for (i = 0; i < envc; envp++, checked++, i++) {
71 if (!tomoyo_path_matches_pattern(&name, envp->name))
75 result = tomoyo_path_matches_pattern(&value,
91 * tomoyo_scan_bprm - Scan "struct linux_binprm".
93 * @ee: Pointer to "struct tomoyo_execve".
94 * @argc: Length of @argc.
95 * @argv: Pointer to "struct tomoyo_argv".
96 * @envc: Length of @envp.
97 * @envp: Poiner to "struct tomoyo_envp".
99 * Returns true on success, false otherwise.
101 static bool tomoyo_scan_bprm(struct tomoyo_execve *ee,
102 const u16 argc, const struct tomoyo_argv *argv,
103 const u16 envc, const struct tomoyo_envp *envp)
105 struct linux_binprm *bprm = ee->bprm;
106 struct tomoyo_page_dump *dump = &ee->dump;
107 char *arg_ptr = ee->tmp;
109 unsigned long pos = bprm->p;
110 int offset = pos % PAGE_SIZE;
111 int argv_count = bprm->argc;
112 int envp_count = bprm->envc;
114 u8 local_checked[32];
116 if (argc + envc <= sizeof(local_checked)) {
117 checked = local_checked;
118 memset(local_checked, 0, sizeof(local_checked));
120 checked = kzalloc(argc + envc, GFP_NOFS);
124 while (argv_count || envp_count) {
125 if (!tomoyo_dump_page(bprm, pos, dump)) {
129 pos += PAGE_SIZE - offset;
130 while (offset < PAGE_SIZE) {
132 const char *kaddr = dump->data;
133 const unsigned char c = kaddr[offset++];
134 if (c && arg_len < TOMOYO_EXEC_TMPSIZE - 10) {
136 arg_ptr[arg_len++] = '\\';
137 arg_ptr[arg_len++] = '\\';
138 } else if (c > ' ' && c < 127) {
139 arg_ptr[arg_len++] = c;
141 arg_ptr[arg_len++] = '\\';
142 arg_ptr[arg_len++] = (c >> 6) + '0';
144 ((c >> 3) & 7) + '0';
145 arg_ptr[arg_len++] = (c & 7) + '0';
148 arg_ptr[arg_len] = '\0';
154 if (!tomoyo_argv(bprm->argc - argv_count,
161 } else if (envp_count) {
162 char *cp = strchr(arg_ptr, '=');
165 if (!tomoyo_envp(arg_ptr, cp + 1,
185 /* Check not-yet-checked entries. */
186 for (i = 0; i < argc; i++) {
190 * Return true only if all unchecked indexes in
191 * bprm->argv[] are not matched.
198 for (i = 0; i < envc; envp++, i++) {
199 if (checked[argc + i])
202 * Return true only if all unchecked environ variables
203 * in bprm->envp[] are either undefined or not matched.
205 if ((!envp->value && !envp->is_not) ||
206 (envp->value && envp->is_not))
212 if (checked != local_checked)
218 * tomoyo_scan_exec_realpath - Check "exec.realpath" parameter of "struct tomoyo_condition".
220 * @file: Pointer to "struct file".
221 * @ptr: Pointer to "struct tomoyo_name_union".
222 * @match: True if "exec.realpath=", false if "exec.realpath!=".
224 * Returns true on success, false otherwise.
226 static bool tomoyo_scan_exec_realpath(struct file *file,
227 const struct tomoyo_name_union *ptr,
231 struct tomoyo_path_info exe;
234 exe.name = tomoyo_realpath_from_path(&file->f_path);
237 tomoyo_fill_path_info(&exe);
238 result = tomoyo_compare_name_union(&exe, ptr);
240 return result == match;
244 * tomoyo_get_dqword - tomoyo_get_name() for a quoted string.
246 * @start: String to save.
248 * Returns pointer to "struct tomoyo_path_info" on success, NULL otherwise.
250 static const struct tomoyo_path_info *tomoyo_get_dqword(char *start)
252 char *cp = start + strlen(start) - 1;
253 if (cp == start || *start++ != '"' || *cp != '"')
256 if (*start && !tomoyo_correct_word(start))
258 return tomoyo_get_name(start);
262 * tomoyo_parse_name_union_quoted - Parse a quoted word.
264 * @param: Pointer to "struct tomoyo_acl_param".
265 * @ptr: Pointer to "struct tomoyo_name_union".
267 * Returns true on success, false otherwise.
269 static bool tomoyo_parse_name_union_quoted(struct tomoyo_acl_param *param,
270 struct tomoyo_name_union *ptr)
272 char *filename = param->data;
273 if (*filename == '@')
274 return tomoyo_parse_name_union(param, ptr);
275 ptr->filename = tomoyo_get_dqword(filename);
276 return ptr->filename != NULL;
280 * tomoyo_parse_argv - Parse an argv[] condition part.
282 * @left: Lefthand value.
283 * @right: Righthand value.
284 * @argv: Pointer to "struct tomoyo_argv".
286 * Returns true on success, false otherwise.
288 static bool tomoyo_parse_argv(char *left, char *right,
289 struct tomoyo_argv *argv)
291 if (tomoyo_parse_ulong(&argv->index, &left) !=
292 TOMOYO_VALUE_TYPE_DECIMAL || *left++ != ']' || *left)
294 argv->value = tomoyo_get_dqword(right);
295 return argv->value != NULL;
299 * tomoyo_parse_envp - Parse an envp[] condition part.
301 * @left: Lefthand value.
302 * @right: Righthand value.
303 * @envp: Pointer to "struct tomoyo_envp".
305 * Returns true on success, false otherwise.
307 static bool tomoyo_parse_envp(char *left, char *right,
308 struct tomoyo_envp *envp)
310 const struct tomoyo_path_info *name;
311 const struct tomoyo_path_info *value;
312 char *cp = left + strlen(left) - 1;
313 if (*cp-- != ']' || *cp != '"')
316 if (!tomoyo_correct_word(left))
318 name = tomoyo_get_name(left);
321 if (!strcmp(right, "NULL")) {
324 value = tomoyo_get_dqword(right);
326 tomoyo_put_name(name);
338 * tomoyo_same_condition - Check for duplicated "struct tomoyo_condition" entry.
340 * @a: Pointer to "struct tomoyo_condition".
341 * @b: Pointer to "struct tomoyo_condition".
343 * Returns true if @a == @b, false otherwise.
345 static inline bool tomoyo_same_condition(const struct tomoyo_condition *a,
346 const struct tomoyo_condition *b)
348 return a->size == b->size && a->condc == b->condc &&
349 a->numbers_count == b->numbers_count &&
350 a->names_count == b->names_count &&
351 a->argc == b->argc && a->envc == b->envc &&
352 a->grant_log == b->grant_log && a->transit == b->transit &&
353 !memcmp(a + 1, b + 1, a->size - sizeof(*a));
357 * tomoyo_condition_type - Get condition type.
359 * @word: Keyword string.
361 * Returns one of values in "enum tomoyo_conditions_index" on success,
362 * TOMOYO_MAX_CONDITION_KEYWORD otherwise.
364 static u8 tomoyo_condition_type(const char *word)
367 for (i = 0; i < TOMOYO_MAX_CONDITION_KEYWORD; i++) {
368 if (!strcmp(word, tomoyo_condition_keyword[i]))
374 /* Define this to enable debug mode. */
375 /* #define DEBUG_CONDITION */
377 #ifdef DEBUG_CONDITION
378 #define dprintk printk
380 #define dprintk(...) do { } while (0)
384 * tomoyo_commit_condition - Commit "struct tomoyo_condition".
386 * @entry: Pointer to "struct tomoyo_condition".
388 * Returns pointer to "struct tomoyo_condition" on success, NULL otherwise.
390 * This function merges duplicated entries. This function returns NULL if
391 * @entry is not duplicated but memory quota for policy has exceeded.
393 static struct tomoyo_condition *tomoyo_commit_condition
394 (struct tomoyo_condition *entry)
396 struct tomoyo_condition *ptr;
398 if (mutex_lock_interruptible(&tomoyo_policy_lock)) {
399 dprintk(KERN_WARNING "%u: %s failed\n", __LINE__, __func__);
404 list_for_each_entry(ptr, &tomoyo_condition_list, head.list) {
405 if (!tomoyo_same_condition(ptr, entry) ||
406 atomic_read(&ptr->head.users) == TOMOYO_GC_IN_PROGRESS)
408 /* Same entry found. Share this entry. */
409 atomic_inc(&ptr->head.users);
414 if (tomoyo_memory_ok(entry)) {
415 atomic_set(&entry->head.users, 1);
416 list_add(&entry->head.list, &tomoyo_condition_list);
422 mutex_unlock(&tomoyo_policy_lock);
425 tomoyo_del_condition(&entry->head.list);
433 * tomoyo_get_transit_preference - Parse domain transition preference for execve().
435 * @param: Pointer to "struct tomoyo_acl_param".
436 * @e: Pointer to "struct tomoyo_condition".
438 * Returns the condition string part.
440 static char *tomoyo_get_transit_preference(struct tomoyo_acl_param *param,
441 struct tomoyo_condition *e)
443 char * const pos = param->data;
446 e->transit = tomoyo_get_domainname(param);
450 char *cp = strchr(pos, ' ');
453 flag = tomoyo_correct_path(pos) || !strcmp(pos, "keep") ||
454 !strcmp(pos, "initialize") || !strcmp(pos, "reset") ||
455 !strcmp(pos, "child") || !strcmp(pos, "parent");
461 e->transit = tomoyo_get_name(tomoyo_read_token(param));
466 * Return a bad read-only condition string that will let
467 * tomoyo_get_condition() return NULL.
473 * tomoyo_get_condition - Parse condition part.
475 * @param: Pointer to "struct tomoyo_acl_param".
477 * Returns pointer to "struct tomoyo_condition" on success, NULL otherwise.
479 struct tomoyo_condition *tomoyo_get_condition(struct tomoyo_acl_param *param)
481 struct tomoyo_condition *entry = NULL;
482 struct tomoyo_condition_element *condp = NULL;
483 struct tomoyo_number_union *numbers_p = NULL;
484 struct tomoyo_name_union *names_p = NULL;
485 struct tomoyo_argv *argv = NULL;
486 struct tomoyo_envp *envp = NULL;
487 struct tomoyo_condition e = { };
488 char * const start_of_string =
489 tomoyo_get_transit_preference(param, &e);
490 char * const end_of_string = start_of_string + strlen(start_of_string);
493 pos = start_of_string;
497 char *left_word = pos;
504 * Since left-hand condition does not allow use of "path_group"
505 * or "number_group" and environment variable's names do not
506 * accept '=', it is guaranteed that the original line consists
507 * of one or more repetition of $left$operator$right blocks
508 * where "$left is free from '=' and ' '" and "$operator is
509 * either '=' or '!='" and "$right is free from ' '".
510 * Therefore, we can reconstruct the original line at the end
511 * of dry run even if we overwrite $operator with '\0'.
513 cp = strchr(pos, ' ');
515 *cp = '\0'; /* Will restore later. */
520 right_word = strchr(left_word, '=');
521 if (!right_word || right_word == left_word)
523 is_not = *(right_word - 1) == '!';
525 *(right_word++ - 1) = '\0'; /* Will restore later. */
526 else if (*(right_word + 1) != '=')
527 *right_word++ = '\0'; /* Will restore later. */
530 dprintk(KERN_WARNING "%u: <%s>%s=<%s>\n", __LINE__, left_word,
531 is_not ? "!" : "", right_word);
532 if (!strcmp(left_word, "grant_log")) {
535 entry->grant_log != TOMOYO_GRANTLOG_AUTO)
537 else if (!strcmp(right_word, "yes"))
538 entry->grant_log = TOMOYO_GRANTLOG_YES;
539 else if (!strcmp(right_word, "no"))
540 entry->grant_log = TOMOYO_GRANTLOG_NO;
546 if (!strncmp(left_word, "exec.argv[", 10)) {
553 left = TOMOYO_ARGV_ENTRY;
554 argv->is_not = is_not;
555 if (!tomoyo_parse_argv(left_word + 10,
561 if (!strncmp(left_word, "exec.envp[\"", 11)) {
568 left = TOMOYO_ENVP_ENTRY;
569 envp->is_not = is_not;
570 if (!tomoyo_parse_envp(left_word + 11,
576 left = tomoyo_condition_type(left_word);
577 dprintk(KERN_WARNING "%u: <%s> left=%u\n", __LINE__, left_word,
579 if (left == TOMOYO_MAX_CONDITION_KEYWORD) {
584 left = TOMOYO_NUMBER_UNION;
585 param->data = left_word;
586 if (*left_word == '@' ||
587 !tomoyo_parse_number_union(param,
596 if (left == TOMOYO_EXEC_REALPATH ||
597 left == TOMOYO_SYMLINK_TARGET) {
602 right = TOMOYO_NAME_UNION;
603 param->data = right_word;
604 if (!tomoyo_parse_name_union_quoted(param,
610 right = tomoyo_condition_type(right_word);
611 if (right == TOMOYO_MAX_CONDITION_KEYWORD) {
616 right = TOMOYO_NUMBER_UNION;
617 param->data = right_word;
618 if (!tomoyo_parse_number_union(param,
625 dprintk(KERN_WARNING "%u: dry_run left=%u right=%u "
626 "match=%u\n", __LINE__, left, right, !is_not);
630 condp->right = right;
631 condp->equals = !is_not;
632 dprintk(KERN_WARNING "%u: left=%u right=%u match=%u\n",
633 __LINE__, condp->left, condp->right,
637 dprintk(KERN_INFO "%u: cond=%u numbers=%u names=%u ac=%u ec=%u\n",
638 __LINE__, e.condc, e.numbers_count, e.names_count, e.argc,
641 BUG_ON(e.names_count | e.numbers_count | e.argc | e.envc |
643 return tomoyo_commit_condition(entry);
645 e.size = sizeof(*entry)
646 + e.condc * sizeof(struct tomoyo_condition_element)
647 + e.numbers_count * sizeof(struct tomoyo_number_union)
648 + e.names_count * sizeof(struct tomoyo_name_union)
649 + e.argc * sizeof(struct tomoyo_argv)
650 + e.envc * sizeof(struct tomoyo_envp);
651 entry = kzalloc(e.size, GFP_NOFS);
656 condp = (struct tomoyo_condition_element *) (entry + 1);
657 numbers_p = (struct tomoyo_number_union *) (condp + e.condc);
658 names_p = (struct tomoyo_name_union *) (numbers_p + e.numbers_count);
659 argv = (struct tomoyo_argv *) (names_p + e.names_count);
660 envp = (struct tomoyo_envp *) (argv + e.argc);
663 for (pos = start_of_string; pos < end_of_string; pos++) {
666 if (flag) /* Restore " ". */
668 else if (*(pos + 1) == '=') /* Restore "!=". */
670 else /* Restore "=". */
677 dprintk(KERN_WARNING "%u: %s failed\n", __LINE__, __func__);
679 tomoyo_del_condition(&entry->head.list);
683 tomoyo_put_name(e.transit);
688 * tomoyo_get_attributes - Revalidate "struct inode".
690 * @obj: Pointer to "struct tomoyo_obj_info".
694 void tomoyo_get_attributes(struct tomoyo_obj_info *obj)
697 struct dentry *dentry = NULL;
699 for (i = 0; i < TOMOYO_MAX_PATH_STAT; i++) {
703 dentry = obj->path1.dentry;
708 dentry = obj->path2.dentry;
715 dentry = dget_parent(dentry);
718 inode = d_backing_inode(dentry);
720 struct tomoyo_mini_stat *stat = &obj->stat[i];
721 stat->uid = inode->i_uid;
722 stat->gid = inode->i_gid;
723 stat->ino = inode->i_ino;
724 stat->mode = inode->i_mode;
725 stat->dev = inode->i_sb->s_dev;
726 stat->rdev = inode->i_rdev;
727 obj->stat_valid[i] = true;
729 if (i & 1) /* i == TOMOYO_PATH1_PARENT ||
730 i == TOMOYO_PATH2_PARENT */
736 * tomoyo_condition - Check condition part.
738 * @r: Pointer to "struct tomoyo_request_info".
739 * @cond: Pointer to "struct tomoyo_condition". Maybe NULL.
741 * Returns true on success, false otherwise.
743 * Caller holds tomoyo_read_lock().
745 bool tomoyo_condition(struct tomoyo_request_info *r,
746 const struct tomoyo_condition *cond)
749 unsigned long min_v[2] = { 0, 0 };
750 unsigned long max_v[2] = { 0, 0 };
751 const struct tomoyo_condition_element *condp;
752 const struct tomoyo_number_union *numbers_p;
753 const struct tomoyo_name_union *names_p;
754 const struct tomoyo_argv *argv;
755 const struct tomoyo_envp *envp;
756 struct tomoyo_obj_info *obj;
760 struct linux_binprm *bprm = NULL;
769 if (!bprm && (argc || envc))
771 condp = (struct tomoyo_condition_element *) (cond + 1);
772 numbers_p = (const struct tomoyo_number_union *) (condp + condc);
773 names_p = (const struct tomoyo_name_union *)
774 (numbers_p + cond->numbers_count);
775 argv = (const struct tomoyo_argv *) (names_p + cond->names_count);
776 envp = (const struct tomoyo_envp *) (argv + argc);
777 for (i = 0; i < condc; i++) {
778 const bool match = condp->equals;
779 const u8 left = condp->left;
780 const u8 right = condp->right;
781 bool is_bitop[2] = { false, false };
784 /* Check argv[] and envp[] later. */
785 if (left == TOMOYO_ARGV_ENTRY || left == TOMOYO_ENVP_ENTRY)
787 /* Check string expressions. */
788 if (right == TOMOYO_NAME_UNION) {
789 const struct tomoyo_name_union *ptr = names_p++;
791 struct tomoyo_path_info *symlink;
792 struct tomoyo_execve *ee;
794 case TOMOYO_SYMLINK_TARGET:
795 symlink = obj ? obj->symlink_target : NULL;
797 !tomoyo_compare_name_union(symlink, ptr)
801 case TOMOYO_EXEC_REALPATH:
803 file = ee ? ee->bprm->file : NULL;
804 if (!tomoyo_scan_exec_realpath(file, ptr,
811 /* Check numeric or bit-op expressions. */
812 for (j = 0; j < 2; j++) {
813 const u8 index = j ? right : left;
814 unsigned long value = 0;
816 case TOMOYO_TASK_UID:
817 value = from_kuid(&init_user_ns, current_uid());
819 case TOMOYO_TASK_EUID:
820 value = from_kuid(&init_user_ns, current_euid());
822 case TOMOYO_TASK_SUID:
823 value = from_kuid(&init_user_ns, current_suid());
825 case TOMOYO_TASK_FSUID:
826 value = from_kuid(&init_user_ns, current_fsuid());
828 case TOMOYO_TASK_GID:
829 value = from_kgid(&init_user_ns, current_gid());
831 case TOMOYO_TASK_EGID:
832 value = from_kgid(&init_user_ns, current_egid());
834 case TOMOYO_TASK_SGID:
835 value = from_kgid(&init_user_ns, current_sgid());
837 case TOMOYO_TASK_FSGID:
838 value = from_kgid(&init_user_ns, current_fsgid());
840 case TOMOYO_TASK_PID:
841 value = tomoyo_sys_getpid();
843 case TOMOYO_TASK_PPID:
844 value = tomoyo_sys_getppid();
846 case TOMOYO_TYPE_IS_SOCKET:
849 case TOMOYO_TYPE_IS_SYMLINK:
852 case TOMOYO_TYPE_IS_FILE:
855 case TOMOYO_TYPE_IS_BLOCK_DEV:
858 case TOMOYO_TYPE_IS_DIRECTORY:
861 case TOMOYO_TYPE_IS_CHAR_DEV:
864 case TOMOYO_TYPE_IS_FIFO:
867 case TOMOYO_MODE_SETUID:
870 case TOMOYO_MODE_SETGID:
873 case TOMOYO_MODE_STICKY:
876 case TOMOYO_MODE_OWNER_READ:
879 case TOMOYO_MODE_OWNER_WRITE:
882 case TOMOYO_MODE_OWNER_EXECUTE:
885 case TOMOYO_MODE_GROUP_READ:
888 case TOMOYO_MODE_GROUP_WRITE:
891 case TOMOYO_MODE_GROUP_EXECUTE:
894 case TOMOYO_MODE_OTHERS_READ:
897 case TOMOYO_MODE_OTHERS_WRITE:
900 case TOMOYO_MODE_OTHERS_EXECUTE:
903 case TOMOYO_EXEC_ARGC:
908 case TOMOYO_EXEC_ENVC:
913 case TOMOYO_NUMBER_UNION:
914 /* Fetch values later. */
919 if (!obj->validate_done) {
920 tomoyo_get_attributes(obj);
921 obj->validate_done = true;
925 struct tomoyo_mini_stat *stat;
927 case TOMOYO_PATH1_UID:
928 case TOMOYO_PATH1_GID:
929 case TOMOYO_PATH1_INO:
930 case TOMOYO_PATH1_MAJOR:
931 case TOMOYO_PATH1_MINOR:
932 case TOMOYO_PATH1_TYPE:
933 case TOMOYO_PATH1_DEV_MAJOR:
934 case TOMOYO_PATH1_DEV_MINOR:
935 case TOMOYO_PATH1_PERM:
936 stat_index = TOMOYO_PATH1;
938 case TOMOYO_PATH2_UID:
939 case TOMOYO_PATH2_GID:
940 case TOMOYO_PATH2_INO:
941 case TOMOYO_PATH2_MAJOR:
942 case TOMOYO_PATH2_MINOR:
943 case TOMOYO_PATH2_TYPE:
944 case TOMOYO_PATH2_DEV_MAJOR:
945 case TOMOYO_PATH2_DEV_MINOR:
946 case TOMOYO_PATH2_PERM:
947 stat_index = TOMOYO_PATH2;
949 case TOMOYO_PATH1_PARENT_UID:
950 case TOMOYO_PATH1_PARENT_GID:
951 case TOMOYO_PATH1_PARENT_INO:
952 case TOMOYO_PATH1_PARENT_PERM:
956 case TOMOYO_PATH2_PARENT_UID:
957 case TOMOYO_PATH2_PARENT_GID:
958 case TOMOYO_PATH2_PARENT_INO:
959 case TOMOYO_PATH2_PARENT_PERM:
966 if (!obj->stat_valid[stat_index])
968 stat = &obj->stat[stat_index];
970 case TOMOYO_PATH1_UID:
971 case TOMOYO_PATH2_UID:
972 case TOMOYO_PATH1_PARENT_UID:
973 case TOMOYO_PATH2_PARENT_UID:
974 value = from_kuid(&init_user_ns, stat->uid);
976 case TOMOYO_PATH1_GID:
977 case TOMOYO_PATH2_GID:
978 case TOMOYO_PATH1_PARENT_GID:
979 case TOMOYO_PATH2_PARENT_GID:
980 value = from_kgid(&init_user_ns, stat->gid);
982 case TOMOYO_PATH1_INO:
983 case TOMOYO_PATH2_INO:
984 case TOMOYO_PATH1_PARENT_INO:
985 case TOMOYO_PATH2_PARENT_INO:
988 case TOMOYO_PATH1_MAJOR:
989 case TOMOYO_PATH2_MAJOR:
990 value = MAJOR(stat->dev);
992 case TOMOYO_PATH1_MINOR:
993 case TOMOYO_PATH2_MINOR:
994 value = MINOR(stat->dev);
996 case TOMOYO_PATH1_TYPE:
997 case TOMOYO_PATH2_TYPE:
998 value = stat->mode & S_IFMT;
1000 case TOMOYO_PATH1_DEV_MAJOR:
1001 case TOMOYO_PATH2_DEV_MAJOR:
1002 value = MAJOR(stat->rdev);
1004 case TOMOYO_PATH1_DEV_MINOR:
1005 case TOMOYO_PATH2_DEV_MINOR:
1006 value = MINOR(stat->rdev);
1008 case TOMOYO_PATH1_PERM:
1009 case TOMOYO_PATH2_PERM:
1010 case TOMOYO_PATH1_PARENT_PERM:
1011 case TOMOYO_PATH2_PARENT_PERM:
1012 value = stat->mode & S_IALLUGO;
1021 case TOMOYO_MODE_SETUID:
1022 case TOMOYO_MODE_SETGID:
1023 case TOMOYO_MODE_STICKY:
1024 case TOMOYO_MODE_OWNER_READ:
1025 case TOMOYO_MODE_OWNER_WRITE:
1026 case TOMOYO_MODE_OWNER_EXECUTE:
1027 case TOMOYO_MODE_GROUP_READ:
1028 case TOMOYO_MODE_GROUP_WRITE:
1029 case TOMOYO_MODE_GROUP_EXECUTE:
1030 case TOMOYO_MODE_OTHERS_READ:
1031 case TOMOYO_MODE_OTHERS_WRITE:
1032 case TOMOYO_MODE_OTHERS_EXECUTE:
1036 if (left == TOMOYO_NUMBER_UNION) {
1037 /* Fetch values now. */
1038 const struct tomoyo_number_union *ptr = numbers_p++;
1039 min_v[0] = ptr->values[0];
1040 max_v[0] = ptr->values[1];
1042 if (right == TOMOYO_NUMBER_UNION) {
1043 /* Fetch values now. */
1044 const struct tomoyo_number_union *ptr = numbers_p++;
1046 if (tomoyo_number_matches_group(min_v[0],
1052 if ((min_v[0] <= ptr->values[1] &&
1053 max_v[0] >= ptr->values[0]) == match)
1059 * Bit operation is valid only when counterpart value
1060 * represents permission.
1062 if (is_bitop[0] && is_bitop[1]) {
1064 } else if (is_bitop[0]) {
1066 case TOMOYO_PATH1_PERM:
1067 case TOMOYO_PATH1_PARENT_PERM:
1068 case TOMOYO_PATH2_PERM:
1069 case TOMOYO_PATH2_PARENT_PERM:
1070 if (!(max_v[0] & max_v[1]) == !match)
1074 } else if (is_bitop[1]) {
1076 case TOMOYO_PATH1_PERM:
1077 case TOMOYO_PATH1_PARENT_PERM:
1078 case TOMOYO_PATH2_PERM:
1079 case TOMOYO_PATH2_PARENT_PERM:
1080 if (!(max_v[0] & max_v[1]) == !match)
1085 /* Normal value range comparison. */
1086 if ((min_v[0] <= max_v[1] && max_v[0] >= min_v[1]) == match)
1091 /* Check argv[] and envp[] now. */
1092 if (r->ee && (argc || envc))
1093 return tomoyo_scan_bprm(r->ee, argc, argv, envc, envp);