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10#ifndef _SECURITY_TOMOYO_COMMON_H
11#define _SECURITY_TOMOYO_COMMON_H
12
13#define pr_fmt(fmt) fmt
14
15#include <linux/ctype.h>
16#include <linux/string.h>
17#include <linux/mm.h>
18#include <linux/file.h>
19#include <linux/kmod.h>
20#include <linux/fs.h>
21#include <linux/sched.h>
22#include <linux/namei.h>
23#include <linux/mount.h>
24#include <linux/list.h>
25#include <linux/cred.h>
26#include <linux/poll.h>
27#include <linux/binfmts.h>
28#include <linux/highmem.h>
29#include <linux/net.h>
30#include <linux/inet.h>
31#include <linux/in.h>
32#include <linux/in6.h>
33#include <linux/un.h>
34#include <linux/lsm_hooks.h>
35#include <net/sock.h>
36#include <net/af_unix.h>
37#include <net/ip.h>
38#include <net/ipv6.h>
39#include <net/udp.h>
40
41
42
43
44
45
46
47
48#define TOMOYO_HASH_BITS 8
49#define TOMOYO_MAX_HASH (1u<<TOMOYO_HASH_BITS)
50
51
52
53
54
55#define TOMOYO_SOCK_MAX 6
56
57#define TOMOYO_EXEC_TMPSIZE 4096
58
59
60#define TOMOYO_GC_IN_PROGRESS -1
61
62
63#define TOMOYO_MAX_PROFILES 256
64
65
66#define TOMOYO_MAX_ACL_GROUPS 256
67
68
69enum tomoyo_conditions_index {
70 TOMOYO_TASK_UID,
71 TOMOYO_TASK_EUID,
72 TOMOYO_TASK_SUID,
73 TOMOYO_TASK_FSUID,
74 TOMOYO_TASK_GID,
75 TOMOYO_TASK_EGID,
76 TOMOYO_TASK_SGID,
77 TOMOYO_TASK_FSGID,
78 TOMOYO_TASK_PID,
79 TOMOYO_TASK_PPID,
80 TOMOYO_EXEC_ARGC,
81 TOMOYO_EXEC_ENVC,
82 TOMOYO_TYPE_IS_SOCKET,
83 TOMOYO_TYPE_IS_SYMLINK,
84 TOMOYO_TYPE_IS_FILE,
85 TOMOYO_TYPE_IS_BLOCK_DEV,
86 TOMOYO_TYPE_IS_DIRECTORY,
87 TOMOYO_TYPE_IS_CHAR_DEV,
88 TOMOYO_TYPE_IS_FIFO,
89 TOMOYO_MODE_SETUID,
90 TOMOYO_MODE_SETGID,
91 TOMOYO_MODE_STICKY,
92 TOMOYO_MODE_OWNER_READ,
93 TOMOYO_MODE_OWNER_WRITE,
94 TOMOYO_MODE_OWNER_EXECUTE,
95 TOMOYO_MODE_GROUP_READ,
96 TOMOYO_MODE_GROUP_WRITE,
97 TOMOYO_MODE_GROUP_EXECUTE,
98 TOMOYO_MODE_OTHERS_READ,
99 TOMOYO_MODE_OTHERS_WRITE,
100 TOMOYO_MODE_OTHERS_EXECUTE,
101 TOMOYO_EXEC_REALPATH,
102 TOMOYO_SYMLINK_TARGET,
103 TOMOYO_PATH1_UID,
104 TOMOYO_PATH1_GID,
105 TOMOYO_PATH1_INO,
106 TOMOYO_PATH1_MAJOR,
107 TOMOYO_PATH1_MINOR,
108 TOMOYO_PATH1_PERM,
109 TOMOYO_PATH1_TYPE,
110 TOMOYO_PATH1_DEV_MAJOR,
111 TOMOYO_PATH1_DEV_MINOR,
112 TOMOYO_PATH2_UID,
113 TOMOYO_PATH2_GID,
114 TOMOYO_PATH2_INO,
115 TOMOYO_PATH2_MAJOR,
116 TOMOYO_PATH2_MINOR,
117 TOMOYO_PATH2_PERM,
118 TOMOYO_PATH2_TYPE,
119 TOMOYO_PATH2_DEV_MAJOR,
120 TOMOYO_PATH2_DEV_MINOR,
121 TOMOYO_PATH1_PARENT_UID,
122 TOMOYO_PATH1_PARENT_GID,
123 TOMOYO_PATH1_PARENT_INO,
124 TOMOYO_PATH1_PARENT_PERM,
125 TOMOYO_PATH2_PARENT_UID,
126 TOMOYO_PATH2_PARENT_GID,
127 TOMOYO_PATH2_PARENT_INO,
128 TOMOYO_PATH2_PARENT_PERM,
129 TOMOYO_MAX_CONDITION_KEYWORD,
130 TOMOYO_NUMBER_UNION,
131 TOMOYO_NAME_UNION,
132 TOMOYO_ARGV_ENTRY,
133 TOMOYO_ENVP_ENTRY,
134};
135
136
137
138enum tomoyo_path_stat_index {
139
140 TOMOYO_PATH1,
141 TOMOYO_PATH1_PARENT,
142 TOMOYO_PATH2,
143 TOMOYO_PATH2_PARENT,
144 TOMOYO_MAX_PATH_STAT
145};
146
147
148enum tomoyo_mode_index {
149 TOMOYO_CONFIG_DISABLED,
150 TOMOYO_CONFIG_LEARNING,
151 TOMOYO_CONFIG_PERMISSIVE,
152 TOMOYO_CONFIG_ENFORCING,
153 TOMOYO_CONFIG_MAX_MODE,
154 TOMOYO_CONFIG_WANT_REJECT_LOG = 64,
155 TOMOYO_CONFIG_WANT_GRANT_LOG = 128,
156 TOMOYO_CONFIG_USE_DEFAULT = 255,
157};
158
159
160enum tomoyo_policy_id {
161 TOMOYO_ID_GROUP,
162 TOMOYO_ID_ADDRESS_GROUP,
163 TOMOYO_ID_PATH_GROUP,
164 TOMOYO_ID_NUMBER_GROUP,
165 TOMOYO_ID_TRANSITION_CONTROL,
166 TOMOYO_ID_AGGREGATOR,
167 TOMOYO_ID_MANAGER,
168 TOMOYO_ID_CONDITION,
169 TOMOYO_ID_NAME,
170 TOMOYO_ID_ACL,
171 TOMOYO_ID_DOMAIN,
172 TOMOYO_MAX_POLICY
173};
174
175
176enum tomoyo_domain_info_flags_index {
177
178 TOMOYO_DIF_QUOTA_WARNED,
179
180
181
182
183
184
185 TOMOYO_DIF_TRANSITION_FAILED,
186 TOMOYO_MAX_DOMAIN_INFO_FLAGS
187};
188
189
190enum tomoyo_grant_log {
191
192 TOMOYO_GRANTLOG_AUTO,
193
194 TOMOYO_GRANTLOG_NO,
195
196 TOMOYO_GRANTLOG_YES,
197};
198
199
200enum tomoyo_group_id {
201 TOMOYO_PATH_GROUP,
202 TOMOYO_NUMBER_GROUP,
203 TOMOYO_ADDRESS_GROUP,
204 TOMOYO_MAX_GROUP
205};
206
207
208enum tomoyo_value_type {
209 TOMOYO_VALUE_TYPE_INVALID,
210 TOMOYO_VALUE_TYPE_DECIMAL,
211 TOMOYO_VALUE_TYPE_OCTAL,
212 TOMOYO_VALUE_TYPE_HEXADECIMAL,
213};
214
215
216enum tomoyo_transition_type {
217
218 TOMOYO_TRANSITION_CONTROL_NO_RESET,
219 TOMOYO_TRANSITION_CONTROL_RESET,
220 TOMOYO_TRANSITION_CONTROL_NO_INITIALIZE,
221 TOMOYO_TRANSITION_CONTROL_INITIALIZE,
222 TOMOYO_TRANSITION_CONTROL_NO_KEEP,
223 TOMOYO_TRANSITION_CONTROL_KEEP,
224 TOMOYO_MAX_TRANSITION_TYPE
225};
226
227
228enum tomoyo_acl_entry_type_index {
229 TOMOYO_TYPE_PATH_ACL,
230 TOMOYO_TYPE_PATH2_ACL,
231 TOMOYO_TYPE_PATH_NUMBER_ACL,
232 TOMOYO_TYPE_MKDEV_ACL,
233 TOMOYO_TYPE_MOUNT_ACL,
234 TOMOYO_TYPE_INET_ACL,
235 TOMOYO_TYPE_UNIX_ACL,
236 TOMOYO_TYPE_ENV_ACL,
237 TOMOYO_TYPE_MANUAL_TASK_ACL,
238};
239
240
241enum tomoyo_path_acl_index {
242 TOMOYO_TYPE_EXECUTE,
243 TOMOYO_TYPE_READ,
244 TOMOYO_TYPE_WRITE,
245 TOMOYO_TYPE_APPEND,
246 TOMOYO_TYPE_UNLINK,
247 TOMOYO_TYPE_GETATTR,
248 TOMOYO_TYPE_RMDIR,
249 TOMOYO_TYPE_TRUNCATE,
250 TOMOYO_TYPE_SYMLINK,
251 TOMOYO_TYPE_CHROOT,
252 TOMOYO_TYPE_UMOUNT,
253 TOMOYO_MAX_PATH_OPERATION
254};
255
256
257enum tomoyo_memory_stat_type {
258 TOMOYO_MEMORY_POLICY,
259 TOMOYO_MEMORY_AUDIT,
260 TOMOYO_MEMORY_QUERY,
261 TOMOYO_MAX_MEMORY_STAT
262};
263
264enum tomoyo_mkdev_acl_index {
265 TOMOYO_TYPE_MKBLOCK,
266 TOMOYO_TYPE_MKCHAR,
267 TOMOYO_MAX_MKDEV_OPERATION
268};
269
270
271enum tomoyo_network_acl_index {
272 TOMOYO_NETWORK_BIND,
273 TOMOYO_NETWORK_LISTEN,
274 TOMOYO_NETWORK_CONNECT,
275 TOMOYO_NETWORK_SEND,
276 TOMOYO_MAX_NETWORK_OPERATION
277};
278
279
280enum tomoyo_path2_acl_index {
281 TOMOYO_TYPE_LINK,
282 TOMOYO_TYPE_RENAME,
283 TOMOYO_TYPE_PIVOT_ROOT,
284 TOMOYO_MAX_PATH2_OPERATION
285};
286
287
288enum tomoyo_path_number_acl_index {
289 TOMOYO_TYPE_CREATE,
290 TOMOYO_TYPE_MKDIR,
291 TOMOYO_TYPE_MKFIFO,
292 TOMOYO_TYPE_MKSOCK,
293 TOMOYO_TYPE_IOCTL,
294 TOMOYO_TYPE_CHMOD,
295 TOMOYO_TYPE_CHOWN,
296 TOMOYO_TYPE_CHGRP,
297 TOMOYO_MAX_PATH_NUMBER_OPERATION
298};
299
300
301enum tomoyo_securityfs_interface_index {
302 TOMOYO_DOMAINPOLICY,
303 TOMOYO_EXCEPTIONPOLICY,
304 TOMOYO_PROCESS_STATUS,
305 TOMOYO_STAT,
306 TOMOYO_AUDIT,
307 TOMOYO_VERSION,
308 TOMOYO_PROFILE,
309 TOMOYO_QUERY,
310 TOMOYO_MANAGER
311};
312
313
314enum tomoyo_special_mount {
315 TOMOYO_MOUNT_BIND,
316 TOMOYO_MOUNT_MOVE,
317 TOMOYO_MOUNT_REMOUNT,
318 TOMOYO_MOUNT_MAKE_UNBINDABLE,
319 TOMOYO_MOUNT_MAKE_PRIVATE,
320 TOMOYO_MOUNT_MAKE_SLAVE,
321 TOMOYO_MOUNT_MAKE_SHARED,
322 TOMOYO_MAX_SPECIAL_MOUNT
323};
324
325
326enum tomoyo_mac_index {
327 TOMOYO_MAC_FILE_EXECUTE,
328 TOMOYO_MAC_FILE_OPEN,
329 TOMOYO_MAC_FILE_CREATE,
330 TOMOYO_MAC_FILE_UNLINK,
331 TOMOYO_MAC_FILE_GETATTR,
332 TOMOYO_MAC_FILE_MKDIR,
333 TOMOYO_MAC_FILE_RMDIR,
334 TOMOYO_MAC_FILE_MKFIFO,
335 TOMOYO_MAC_FILE_MKSOCK,
336 TOMOYO_MAC_FILE_TRUNCATE,
337 TOMOYO_MAC_FILE_SYMLINK,
338 TOMOYO_MAC_FILE_MKBLOCK,
339 TOMOYO_MAC_FILE_MKCHAR,
340 TOMOYO_MAC_FILE_LINK,
341 TOMOYO_MAC_FILE_RENAME,
342 TOMOYO_MAC_FILE_CHMOD,
343 TOMOYO_MAC_FILE_CHOWN,
344 TOMOYO_MAC_FILE_CHGRP,
345 TOMOYO_MAC_FILE_IOCTL,
346 TOMOYO_MAC_FILE_CHROOT,
347 TOMOYO_MAC_FILE_MOUNT,
348 TOMOYO_MAC_FILE_UMOUNT,
349 TOMOYO_MAC_FILE_PIVOT_ROOT,
350 TOMOYO_MAC_NETWORK_INET_STREAM_BIND,
351 TOMOYO_MAC_NETWORK_INET_STREAM_LISTEN,
352 TOMOYO_MAC_NETWORK_INET_STREAM_CONNECT,
353 TOMOYO_MAC_NETWORK_INET_DGRAM_BIND,
354 TOMOYO_MAC_NETWORK_INET_DGRAM_SEND,
355 TOMOYO_MAC_NETWORK_INET_RAW_BIND,
356 TOMOYO_MAC_NETWORK_INET_RAW_SEND,
357 TOMOYO_MAC_NETWORK_UNIX_STREAM_BIND,
358 TOMOYO_MAC_NETWORK_UNIX_STREAM_LISTEN,
359 TOMOYO_MAC_NETWORK_UNIX_STREAM_CONNECT,
360 TOMOYO_MAC_NETWORK_UNIX_DGRAM_BIND,
361 TOMOYO_MAC_NETWORK_UNIX_DGRAM_SEND,
362 TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_BIND,
363 TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_LISTEN,
364 TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_CONNECT,
365 TOMOYO_MAC_ENVIRON,
366 TOMOYO_MAX_MAC_INDEX
367};
368
369
370enum tomoyo_mac_category_index {
371 TOMOYO_MAC_CATEGORY_FILE,
372 TOMOYO_MAC_CATEGORY_NETWORK,
373 TOMOYO_MAC_CATEGORY_MISC,
374 TOMOYO_MAX_MAC_CATEGORY_INDEX
375};
376
377
378
379
380
381
382
383
384#define TOMOYO_RETRY_REQUEST 1
385
386
387enum tomoyo_policy_stat_type {
388
389 TOMOYO_STAT_POLICY_UPDATES,
390 TOMOYO_STAT_POLICY_LEARNING,
391 TOMOYO_STAT_POLICY_PERMISSIVE,
392 TOMOYO_STAT_POLICY_ENFORCING,
393 TOMOYO_MAX_POLICY_STAT
394};
395
396
397enum tomoyo_pref_index {
398 TOMOYO_PREF_MAX_AUDIT_LOG,
399 TOMOYO_PREF_MAX_LEARNING_ENTRY,
400 TOMOYO_MAX_PREF
401};
402
403
404
405
406struct tomoyo_acl_head {
407 struct list_head list;
408 s8 is_deleted;
409} __packed;
410
411
412struct tomoyo_shared_acl_head {
413 struct list_head list;
414 atomic_t users;
415} __packed;
416
417struct tomoyo_policy_namespace;
418
419
420struct tomoyo_request_info {
421
422
423
424
425 struct tomoyo_obj_info *obj;
426
427
428
429
430 struct tomoyo_execve *ee;
431 struct tomoyo_domain_info *domain;
432
433 union {
434 struct {
435 const struct tomoyo_path_info *filename;
436
437 const struct tomoyo_path_info *matched_path;
438
439 u8 operation;
440 } path;
441 struct {
442 const struct tomoyo_path_info *filename1;
443 const struct tomoyo_path_info *filename2;
444
445 u8 operation;
446 } path2;
447 struct {
448 const struct tomoyo_path_info *filename;
449 unsigned int mode;
450 unsigned int major;
451 unsigned int minor;
452
453 u8 operation;
454 } mkdev;
455 struct {
456 const struct tomoyo_path_info *filename;
457 unsigned long number;
458
459
460
461
462 u8 operation;
463 } path_number;
464 struct {
465 const struct tomoyo_path_info *name;
466 } environ;
467 struct {
468 const __be32 *address;
469 u16 port;
470
471 u8 protocol;
472
473 u8 operation;
474 bool is_ipv6;
475 } inet_network;
476 struct {
477 const struct tomoyo_path_info *address;
478
479 u8 protocol;
480
481 u8 operation;
482 } unix_network;
483 struct {
484 const struct tomoyo_path_info *type;
485 const struct tomoyo_path_info *dir;
486 const struct tomoyo_path_info *dev;
487 unsigned long flags;
488 int need_dev;
489 } mount;
490 struct {
491 const struct tomoyo_path_info *domainname;
492 } task;
493 } param;
494 struct tomoyo_acl_info *matched_acl;
495 u8 param_type;
496 bool granted;
497 u8 retry;
498 u8 profile;
499 u8 mode;
500 u8 type;
501};
502
503
504struct tomoyo_path_info {
505 const char *name;
506 u32 hash;
507 u16 const_len;
508 bool is_dir;
509 bool is_patterned;
510};
511
512
513struct tomoyo_name {
514 struct tomoyo_shared_acl_head head;
515 struct tomoyo_path_info entry;
516};
517
518
519struct tomoyo_name_union {
520
521 const struct tomoyo_path_info *filename;
522 struct tomoyo_group *group;
523};
524
525
526struct tomoyo_number_union {
527 unsigned long values[2];
528 struct tomoyo_group *group;
529
530 u8 value_type[2];
531};
532
533
534struct tomoyo_ipaddr_union {
535 struct in6_addr ip[2];
536 struct tomoyo_group *group;
537 bool is_ipv6;
538};
539
540
541struct tomoyo_group {
542 struct tomoyo_shared_acl_head head;
543 const struct tomoyo_path_info *group_name;
544 struct list_head member_list;
545};
546
547
548struct tomoyo_path_group {
549 struct tomoyo_acl_head head;
550 const struct tomoyo_path_info *member_name;
551};
552
553
554struct tomoyo_number_group {
555 struct tomoyo_acl_head head;
556 struct tomoyo_number_union number;
557};
558
559
560struct tomoyo_address_group {
561 struct tomoyo_acl_head head;
562
563 struct tomoyo_ipaddr_union address;
564};
565
566
567struct tomoyo_mini_stat {
568 kuid_t uid;
569 kgid_t gid;
570 ino_t ino;
571 umode_t mode;
572 dev_t dev;
573 dev_t rdev;
574};
575
576
577struct tomoyo_page_dump {
578 struct page *page;
579 char *data;
580};
581
582
583struct tomoyo_obj_info {
584
585
586
587 bool validate_done;
588
589 bool stat_valid[TOMOYO_MAX_PATH_STAT];
590
591 struct path path1;
592
593 struct path path2;
594
595
596
597
598 struct tomoyo_mini_stat stat[TOMOYO_MAX_PATH_STAT];
599
600
601
602
603 struct tomoyo_path_info *symlink_target;
604};
605
606
607struct tomoyo_argv {
608 unsigned long index;
609 const struct tomoyo_path_info *value;
610 bool is_not;
611};
612
613
614struct tomoyo_envp {
615 const struct tomoyo_path_info *name;
616 const struct tomoyo_path_info *value;
617 bool is_not;
618};
619
620
621struct tomoyo_execve {
622 struct tomoyo_request_info r;
623 struct tomoyo_obj_info obj;
624 struct linux_binprm *bprm;
625 const struct tomoyo_path_info *transition;
626
627 struct tomoyo_page_dump dump;
628
629 char *tmp;
630};
631
632
633struct tomoyo_condition_element {
634
635
636
637
638
639 u8 left;
640
641
642
643
644
645
646 u8 right;
647
648 bool equals;
649};
650
651
652struct tomoyo_condition {
653 struct tomoyo_shared_acl_head head;
654 u32 size;
655 u16 condc;
656 u16 numbers_count;
657 u16 names_count;
658 u16 argc;
659 u16 envc;
660 u8 grant_log;
661 const struct tomoyo_path_info *transit;
662
663
664
665
666
667
668
669};
670
671
672struct tomoyo_acl_info {
673 struct list_head list;
674 struct tomoyo_condition *cond;
675 s8 is_deleted;
676 u8 type;
677} __packed;
678
679
680struct tomoyo_domain_info {
681 struct list_head list;
682 struct list_head acl_info_list;
683
684 const struct tomoyo_path_info *domainname;
685
686 struct tomoyo_policy_namespace *ns;
687
688 unsigned long group[TOMOYO_MAX_ACL_GROUPS / BITS_PER_LONG];
689 u8 profile;
690 bool is_deleted;
691 bool flags[TOMOYO_MAX_DOMAIN_INFO_FLAGS];
692 atomic_t users;
693};
694
695
696
697
698struct tomoyo_task_acl {
699 struct tomoyo_acl_info head;
700
701 const struct tomoyo_path_info *domainname;
702};
703
704
705
706
707
708
709struct tomoyo_path_acl {
710 struct tomoyo_acl_info head;
711 u16 perm;
712 struct tomoyo_name_union name;
713};
714
715
716
717
718
719struct tomoyo_path_number_acl {
720 struct tomoyo_acl_info head;
721
722 u8 perm;
723 struct tomoyo_name_union name;
724 struct tomoyo_number_union number;
725};
726
727
728struct tomoyo_mkdev_acl {
729 struct tomoyo_acl_info head;
730 u8 perm;
731 struct tomoyo_name_union name;
732 struct tomoyo_number_union mode;
733 struct tomoyo_number_union major;
734 struct tomoyo_number_union minor;
735};
736
737
738
739
740struct tomoyo_path2_acl {
741 struct tomoyo_acl_info head;
742 u8 perm;
743 struct tomoyo_name_union name1;
744 struct tomoyo_name_union name2;
745};
746
747
748struct tomoyo_mount_acl {
749 struct tomoyo_acl_info head;
750 struct tomoyo_name_union dev_name;
751 struct tomoyo_name_union dir_name;
752 struct tomoyo_name_union fs_type;
753 struct tomoyo_number_union flags;
754};
755
756
757struct tomoyo_env_acl {
758 struct tomoyo_acl_info head;
759 const struct tomoyo_path_info *env;
760};
761
762
763struct tomoyo_inet_acl {
764 struct tomoyo_acl_info head;
765 u8 protocol;
766 u8 perm;
767 struct tomoyo_ipaddr_union address;
768 struct tomoyo_number_union port;
769};
770
771
772struct tomoyo_unix_acl {
773 struct tomoyo_acl_info head;
774 u8 protocol;
775 u8 perm;
776 struct tomoyo_name_union name;
777};
778
779
780struct tomoyo_acl_param {
781 char *data;
782 struct list_head *list;
783 struct tomoyo_policy_namespace *ns;
784 bool is_delete;
785};
786
787#define TOMOYO_MAX_IO_READ_QUEUE 64
788
789
790
791
792
793struct tomoyo_io_buffer {
794 void (*read)(struct tomoyo_io_buffer *head);
795 int (*write)(struct tomoyo_io_buffer *head);
796 __poll_t (*poll)(struct file *file, poll_table *wait);
797
798 struct mutex io_sem;
799 char __user *read_user_buf;
800 size_t read_user_buf_avail;
801 struct {
802 struct list_head *ns;
803 struct list_head *domain;
804 struct list_head *group;
805 struct list_head *acl;
806 size_t avail;
807 unsigned int step;
808 unsigned int query_index;
809 u16 index;
810 u16 cond_index;
811 u8 acl_group_index;
812 u8 cond_step;
813 u8 bit;
814 u8 w_pos;
815 bool eof;
816 bool print_this_domain_only;
817 bool print_transition_related_only;
818 bool print_cond_part;
819 const char *w[TOMOYO_MAX_IO_READ_QUEUE];
820 } r;
821 struct {
822 struct tomoyo_policy_namespace *ns;
823
824 struct tomoyo_domain_info *domain;
825
826 size_t avail;
827 bool is_delete;
828 } w;
829
830 char *read_buf;
831
832 size_t readbuf_size;
833
834 char *write_buf;
835
836 size_t writebuf_size;
837
838 enum tomoyo_securityfs_interface_index type;
839
840 u8 users;
841
842 struct list_head list;
843};
844
845
846
847
848
849struct tomoyo_transition_control {
850 struct tomoyo_acl_head head;
851 u8 type;
852
853 bool is_last_name;
854 const struct tomoyo_path_info *domainname;
855 const struct tomoyo_path_info *program;
856};
857
858
859struct tomoyo_aggregator {
860 struct tomoyo_acl_head head;
861 const struct tomoyo_path_info *original_name;
862 const struct tomoyo_path_info *aggregated_name;
863};
864
865
866struct tomoyo_manager {
867 struct tomoyo_acl_head head;
868
869 const struct tomoyo_path_info *manager;
870};
871
872struct tomoyo_preference {
873 unsigned int learning_max_entry;
874 bool enforcing_verbose;
875 bool learning_verbose;
876 bool permissive_verbose;
877};
878
879
880struct tomoyo_profile {
881 const struct tomoyo_path_info *comment;
882 struct tomoyo_preference *learning;
883 struct tomoyo_preference *permissive;
884 struct tomoyo_preference *enforcing;
885 struct tomoyo_preference preference;
886 u8 default_config;
887 u8 config[TOMOYO_MAX_MAC_INDEX + TOMOYO_MAX_MAC_CATEGORY_INDEX];
888 unsigned int pref[TOMOYO_MAX_PREF];
889};
890
891
892struct tomoyo_time {
893 u16 year;
894 u8 month;
895 u8 day;
896 u8 hour;
897 u8 min;
898 u8 sec;
899};
900
901
902struct tomoyo_policy_namespace {
903
904 struct tomoyo_profile *profile_ptr[TOMOYO_MAX_PROFILES];
905
906 struct list_head group_list[TOMOYO_MAX_GROUP];
907
908 struct list_head policy_list[TOMOYO_MAX_POLICY];
909
910 struct list_head acl_group[TOMOYO_MAX_ACL_GROUPS];
911
912 struct list_head namespace_list;
913
914 unsigned int profile_version;
915
916 const char *name;
917};
918
919
920struct tomoyo_task {
921 struct tomoyo_domain_info *domain_info;
922 struct tomoyo_domain_info *old_domain_info;
923};
924
925
926
927bool tomoyo_address_matches_group(const bool is_ipv6, const __be32 *address,
928 const struct tomoyo_group *group);
929bool tomoyo_compare_number_union(const unsigned long value,
930 const struct tomoyo_number_union *ptr);
931bool tomoyo_condition(struct tomoyo_request_info *r,
932 const struct tomoyo_condition *cond);
933bool tomoyo_correct_domain(const unsigned char *domainname);
934bool tomoyo_correct_path(const char *filename);
935bool tomoyo_correct_word(const char *string);
936bool tomoyo_domain_def(const unsigned char *buffer);
937bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r);
938bool tomoyo_dump_page(struct linux_binprm *bprm, unsigned long pos,
939 struct tomoyo_page_dump *dump);
940bool tomoyo_memory_ok(void *ptr);
941bool tomoyo_number_matches_group(const unsigned long min,
942 const unsigned long max,
943 const struct tomoyo_group *group);
944bool tomoyo_parse_ipaddr_union(struct tomoyo_acl_param *param,
945 struct tomoyo_ipaddr_union *ptr);
946bool tomoyo_parse_name_union(struct tomoyo_acl_param *param,
947 struct tomoyo_name_union *ptr);
948bool tomoyo_parse_number_union(struct tomoyo_acl_param *param,
949 struct tomoyo_number_union *ptr);
950bool tomoyo_path_matches_pattern(const struct tomoyo_path_info *filename,
951 const struct tomoyo_path_info *pattern);
952bool tomoyo_permstr(const char *string, const char *keyword);
953bool tomoyo_str_starts(char **src, const char *find);
954char *tomoyo_encode(const char *str);
955char *tomoyo_encode2(const char *str, int str_len);
956char *tomoyo_init_log(struct tomoyo_request_info *r, int len, const char *fmt,
957 va_list args);
958char *tomoyo_read_token(struct tomoyo_acl_param *param);
959char *tomoyo_realpath_from_path(const struct path *path);
960char *tomoyo_realpath_nofollow(const char *pathname);
961const char *tomoyo_get_exe(void);
962const struct tomoyo_path_info *tomoyo_compare_name_union
963(const struct tomoyo_path_info *name, const struct tomoyo_name_union *ptr);
964const struct tomoyo_path_info *tomoyo_get_domainname
965(struct tomoyo_acl_param *param);
966const struct tomoyo_path_info *tomoyo_get_name(const char *name);
967const struct tomoyo_path_info *tomoyo_path_matches_group
968(const struct tomoyo_path_info *pathname, const struct tomoyo_group *group);
969int tomoyo_check_open_permission(struct tomoyo_domain_info *domain,
970 const struct path *path, const int flag);
971void tomoyo_close_control(struct tomoyo_io_buffer *head);
972int tomoyo_env_perm(struct tomoyo_request_info *r, const char *env);
973int tomoyo_execute_permission(struct tomoyo_request_info *r,
974 const struct tomoyo_path_info *filename);
975int tomoyo_find_next_domain(struct linux_binprm *bprm);
976int tomoyo_get_mode(const struct tomoyo_policy_namespace *ns, const u8 profile,
977 const u8 index);
978int tomoyo_init_request_info(struct tomoyo_request_info *r,
979 struct tomoyo_domain_info *domain,
980 const u8 index);
981int tomoyo_mkdev_perm(const u8 operation, const struct path *path,
982 const unsigned int mode, unsigned int dev);
983int tomoyo_mount_permission(const char *dev_name, const struct path *path,
984 const char *type, unsigned long flags,
985 void *data_page);
986int tomoyo_open_control(const u8 type, struct file *file);
987int tomoyo_path2_perm(const u8 operation, const struct path *path1,
988 const struct path *path2);
989int tomoyo_path_number_perm(const u8 operation, const struct path *path,
990 unsigned long number);
991int tomoyo_path_perm(const u8 operation, const struct path *path,
992 const char *target);
993__poll_t tomoyo_poll_control(struct file *file, poll_table *wait);
994__poll_t tomoyo_poll_log(struct file *file, poll_table *wait);
995int tomoyo_socket_bind_permission(struct socket *sock, struct sockaddr *addr,
996 int addr_len);
997int tomoyo_socket_connect_permission(struct socket *sock,
998 struct sockaddr *addr, int addr_len);
999int tomoyo_socket_listen_permission(struct socket *sock);
1000int tomoyo_socket_sendmsg_permission(struct socket *sock, struct msghdr *msg,
1001 int size);
1002int tomoyo_supervisor(struct tomoyo_request_info *r, const char *fmt, ...)
1003 __printf(2, 3);
1004int tomoyo_update_domain(struct tomoyo_acl_info *new_entry, const int size,
1005 struct tomoyo_acl_param *param,
1006 bool (*check_duplicate)
1007 (const struct tomoyo_acl_info *,
1008 const struct tomoyo_acl_info *),
1009 bool (*merge_duplicate)
1010 (struct tomoyo_acl_info *, struct tomoyo_acl_info *,
1011 const bool));
1012int tomoyo_update_policy(struct tomoyo_acl_head *new_entry, const int size,
1013 struct tomoyo_acl_param *param,
1014 bool (*check_duplicate)
1015 (const struct tomoyo_acl_head *,
1016 const struct tomoyo_acl_head *));
1017int tomoyo_write_aggregator(struct tomoyo_acl_param *param);
1018int tomoyo_write_file(struct tomoyo_acl_param *param);
1019int tomoyo_write_group(struct tomoyo_acl_param *param, const u8 type);
1020int tomoyo_write_misc(struct tomoyo_acl_param *param);
1021int tomoyo_write_inet_network(struct tomoyo_acl_param *param);
1022int tomoyo_write_transition_control(struct tomoyo_acl_param *param,
1023 const u8 type);
1024int tomoyo_write_unix_network(struct tomoyo_acl_param *param);
1025ssize_t tomoyo_read_control(struct tomoyo_io_buffer *head, char __user *buffer,
1026 const int buffer_len);
1027ssize_t tomoyo_write_control(struct tomoyo_io_buffer *head,
1028 const char __user *buffer, const int buffer_len);
1029struct tomoyo_condition *tomoyo_get_condition(struct tomoyo_acl_param *param);
1030struct tomoyo_domain_info *tomoyo_assign_domain(const char *domainname,
1031 const bool transit);
1032struct tomoyo_domain_info *tomoyo_domain(void);
1033struct tomoyo_domain_info *tomoyo_find_domain(const char *domainname);
1034struct tomoyo_group *tomoyo_get_group(struct tomoyo_acl_param *param,
1035 const u8 idx);
1036struct tomoyo_policy_namespace *tomoyo_assign_namespace
1037(const char *domainname);
1038struct tomoyo_profile *tomoyo_profile(const struct tomoyo_policy_namespace *ns,
1039 const u8 profile);
1040unsigned int tomoyo_check_flags(const struct tomoyo_domain_info *domain,
1041 const u8 index);
1042u8 tomoyo_parse_ulong(unsigned long *result, char **str);
1043void *tomoyo_commit_ok(void *data, const unsigned int size);
1044void __init tomoyo_load_builtin_policy(void);
1045void __init tomoyo_mm_init(void);
1046void tomoyo_check_acl(struct tomoyo_request_info *r,
1047 bool (*check_entry)(struct tomoyo_request_info *,
1048 const struct tomoyo_acl_info *));
1049void tomoyo_check_profile(void);
1050void tomoyo_convert_time(time64_t time, struct tomoyo_time *stamp);
1051void tomoyo_del_condition(struct list_head *element);
1052void tomoyo_fill_path_info(struct tomoyo_path_info *ptr);
1053void tomoyo_get_attributes(struct tomoyo_obj_info *obj);
1054void tomoyo_init_policy_namespace(struct tomoyo_policy_namespace *ns);
1055void tomoyo_load_policy(const char *filename);
1056void tomoyo_normalize_line(unsigned char *buffer);
1057void tomoyo_notify_gc(struct tomoyo_io_buffer *head, const bool is_register);
1058void tomoyo_print_ip(char *buf, const unsigned int size,
1059 const struct tomoyo_ipaddr_union *ptr);
1060void tomoyo_print_ulong(char *buffer, const int buffer_len,
1061 const unsigned long value, const u8 type);
1062void tomoyo_put_name_union(struct tomoyo_name_union *ptr);
1063void tomoyo_put_number_union(struct tomoyo_number_union *ptr);
1064void tomoyo_read_log(struct tomoyo_io_buffer *head);
1065void tomoyo_update_stat(const u8 index);
1066void tomoyo_warn_oom(const char *function);
1067void tomoyo_write_log(struct tomoyo_request_info *r, const char *fmt, ...)
1068 __printf(2, 3);
1069void tomoyo_write_log2(struct tomoyo_request_info *r, int len, const char *fmt,
1070 va_list args);
1071
1072
1073
1074extern bool tomoyo_policy_loaded;
1075extern int tomoyo_enabled;
1076extern const char * const tomoyo_condition_keyword
1077[TOMOYO_MAX_CONDITION_KEYWORD];
1078extern const char * const tomoyo_dif[TOMOYO_MAX_DOMAIN_INFO_FLAGS];
1079extern const char * const tomoyo_mac_keywords[TOMOYO_MAX_MAC_INDEX
1080 + TOMOYO_MAX_MAC_CATEGORY_INDEX];
1081extern const char * const tomoyo_mode[TOMOYO_CONFIG_MAX_MODE];
1082extern const char * const tomoyo_path_keyword[TOMOYO_MAX_PATH_OPERATION];
1083extern const char * const tomoyo_proto_keyword[TOMOYO_SOCK_MAX];
1084extern const char * const tomoyo_socket_keyword[TOMOYO_MAX_NETWORK_OPERATION];
1085extern const u8 tomoyo_index2category[TOMOYO_MAX_MAC_INDEX];
1086extern const u8 tomoyo_pn2mac[TOMOYO_MAX_PATH_NUMBER_OPERATION];
1087extern const u8 tomoyo_pnnn2mac[TOMOYO_MAX_MKDEV_OPERATION];
1088extern const u8 tomoyo_pp2mac[TOMOYO_MAX_PATH2_OPERATION];
1089extern struct list_head tomoyo_condition_list;
1090extern struct list_head tomoyo_domain_list;
1091extern struct list_head tomoyo_name_list[TOMOYO_MAX_HASH];
1092extern struct list_head tomoyo_namespace_list;
1093extern struct mutex tomoyo_policy_lock;
1094extern struct srcu_struct tomoyo_ss;
1095extern struct tomoyo_domain_info tomoyo_kernel_domain;
1096extern struct tomoyo_policy_namespace tomoyo_kernel_namespace;
1097extern unsigned int tomoyo_memory_quota[TOMOYO_MAX_MEMORY_STAT];
1098extern unsigned int tomoyo_memory_used[TOMOYO_MAX_MEMORY_STAT];
1099extern struct lsm_blob_sizes tomoyo_blob_sizes;
1100
1101
1102
1103
1104
1105
1106
1107
1108static inline int tomoyo_read_lock(void)
1109{
1110 return srcu_read_lock(&tomoyo_ss);
1111}
1112
1113
1114
1115
1116
1117
1118
1119
1120static inline void tomoyo_read_unlock(int idx)
1121{
1122 srcu_read_unlock(&tomoyo_ss, idx);
1123}
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133static inline pid_t tomoyo_sys_getppid(void)
1134{
1135 pid_t pid;
1136
1137 rcu_read_lock();
1138 pid = task_tgid_vnr(rcu_dereference(current->real_parent));
1139 rcu_read_unlock();
1140 return pid;
1141}
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151static inline pid_t tomoyo_sys_getpid(void)
1152{
1153 return task_tgid_vnr(current);
1154}
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164static inline bool tomoyo_pathcmp(const struct tomoyo_path_info *a,
1165 const struct tomoyo_path_info *b)
1166{
1167 return a->hash != b->hash || strcmp(a->name, b->name);
1168}
1169
1170
1171
1172
1173
1174
1175
1176
1177static inline void tomoyo_put_name(const struct tomoyo_path_info *name)
1178{
1179 if (name) {
1180 struct tomoyo_name *ptr =
1181 container_of(name, typeof(*ptr), entry);
1182 atomic_dec(&ptr->head.users);
1183 }
1184}
1185
1186
1187
1188
1189
1190
1191
1192
1193static inline void tomoyo_put_condition(struct tomoyo_condition *cond)
1194{
1195 if (cond)
1196 atomic_dec(&cond->head.users);
1197}
1198
1199
1200
1201
1202
1203
1204
1205
1206static inline void tomoyo_put_group(struct tomoyo_group *group)
1207{
1208 if (group)
1209 atomic_dec(&group->head.users);
1210}
1211
1212
1213
1214
1215
1216
1217
1218
1219static inline struct tomoyo_task *tomoyo_task(struct task_struct *task)
1220{
1221 return task->security + tomoyo_blob_sizes.lbs_task;
1222}
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232static inline bool tomoyo_same_name_union
1233(const struct tomoyo_name_union *a, const struct tomoyo_name_union *b)
1234{
1235 return a->filename == b->filename && a->group == b->group;
1236}
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246static inline bool tomoyo_same_number_union
1247(const struct tomoyo_number_union *a, const struct tomoyo_number_union *b)
1248{
1249 return a->values[0] == b->values[0] && a->values[1] == b->values[1] &&
1250 a->group == b->group && a->value_type[0] == b->value_type[0] &&
1251 a->value_type[1] == b->value_type[1];
1252}
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262static inline bool tomoyo_same_ipaddr_union
1263(const struct tomoyo_ipaddr_union *a, const struct tomoyo_ipaddr_union *b)
1264{
1265 return !memcmp(a->ip, b->ip, sizeof(a->ip)) && a->group == b->group &&
1266 a->is_ipv6 == b->is_ipv6;
1267}
1268
1269
1270
1271
1272
1273
1274static inline struct tomoyo_policy_namespace *tomoyo_current_namespace(void)
1275{
1276 return tomoyo_domain()->ns;
1277}
1278
1279#if defined(CONFIG_SLOB)
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290static inline int tomoyo_round2(size_t size)
1291{
1292 return size;
1293}
1294
1295#else
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307static inline int tomoyo_round2(size_t size)
1308{
1309#if PAGE_SIZE == 4096
1310 size_t bsize = 32;
1311#else
1312 size_t bsize = 64;
1313#endif
1314 if (!size)
1315 return 0;
1316 while (size > bsize)
1317 bsize <<= 1;
1318 return bsize;
1319}
1320
1321#endif
1322
1323
1324
1325
1326
1327
1328#define list_for_each_cookie(pos, head) \
1329 if (!pos) \
1330 pos = srcu_dereference((head)->next, &tomoyo_ss); \
1331 for ( ; pos != (head); pos = srcu_dereference(pos->next, &tomoyo_ss))
1332
1333#endif
1334