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Kentaro Takeda95908372009-02-05 17:18:13 +09001/*
2 * security/tomoyo/common.h
3 *
Tetsuo Handa76bb0892010-02-11 09:42:40 +09004 * Header file for TOMOYO.
Kentaro Takeda95908372009-02-05 17:18:13 +09005 *
Tetsuo Handa843d1832011-09-14 17:03:19 +09006 * Copyright (C) 2005-2011 NTT DATA CORPORATION
Kentaro Takeda95908372009-02-05 17:18:13 +09007 */
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>
Tetsuo Handa76bb0892010-02-11 09:42:40 +090022#include <linux/cred.h>
Tetsuo Handa17fcfbd2010-05-17 10:11:36 +090023#include <linux/poll.h>
Tetsuo Handa2066a362011-07-08 13:21:37 +090024#include <linux/binfmts.h>
25#include <linux/highmem.h>
Tetsuo Handa059d84d2011-09-10 15:23:54 +090026#include <linux/net.h>
27#include <linux/inet.h>
28#include <linux/in.h>
29#include <linux/in6.h>
30#include <linux/un.h>
31#include <net/sock.h>
32#include <net/af_unix.h>
33#include <net/ip.h>
34#include <net/ipv6.h>
35#include <net/udp.h>
Kentaro Takeda95908372009-02-05 17:18:13 +090036
Tetsuo Handa76bb0892010-02-11 09:42:40 +090037/********** Constants definitions. **********/
38
39/*
40 * TOMOYO uses this hash only when appending a string into the string
41 * table. Frequency of appending strings is very low. So we don't need
42 * large (e.g. 64k) hash size. 256 will be sufficient.
43 */
44#define TOMOYO_HASH_BITS 8
45#define TOMOYO_MAX_HASH (1u<<TOMOYO_HASH_BITS)
46
Tetsuo Handa059d84d2011-09-10 15:23:54 +090047/*
48 * TOMOYO checks only SOCK_STREAM, SOCK_DGRAM, SOCK_RAW, SOCK_SEQPACKET.
49 * Therefore, we don't need SOCK_MAX.
50 */
51#define TOMOYO_SOCK_MAX 6
52
Tetsuo Handac8c57e82010-06-03 20:36:43 +090053#define TOMOYO_EXEC_TMPSIZE 4096
Tetsuo Handa76bb0892010-02-11 09:42:40 +090054
Tetsuo Handaf9732ea2011-09-25 17:50:23 +090055/* Garbage collector is trying to kfree() this element. */
56#define TOMOYO_GC_IN_PROGRESS -1
57
Tetsuo Handa76bb0892010-02-11 09:42:40 +090058/* Profile number is an integer between 0 and 255. */
59#define TOMOYO_MAX_PROFILES 256
60
Tetsuo Handa32997142011-06-26 23:19:28 +090061/* Group number is an integer between 0 and 255. */
62#define TOMOYO_MAX_ACL_GROUPS 256
63
Tetsuo Handa2066a362011-07-08 13:21:37 +090064/* Index numbers for "struct tomoyo_condition". */
65enum tomoyo_conditions_index {
66 TOMOYO_TASK_UID, /* current_uid() */
67 TOMOYO_TASK_EUID, /* current_euid() */
68 TOMOYO_TASK_SUID, /* current_suid() */
69 TOMOYO_TASK_FSUID, /* current_fsuid() */
70 TOMOYO_TASK_GID, /* current_gid() */
71 TOMOYO_TASK_EGID, /* current_egid() */
72 TOMOYO_TASK_SGID, /* current_sgid() */
73 TOMOYO_TASK_FSGID, /* current_fsgid() */
74 TOMOYO_TASK_PID, /* sys_getpid() */
75 TOMOYO_TASK_PPID, /* sys_getppid() */
Tetsuo Handa5b636852011-07-08 13:24:54 +090076 TOMOYO_EXEC_ARGC, /* "struct linux_binprm *"->argc */
77 TOMOYO_EXEC_ENVC, /* "struct linux_binprm *"->envc */
Tetsuo Handa8761afd2011-07-08 13:22:41 +090078 TOMOYO_TYPE_IS_SOCKET, /* S_IFSOCK */
79 TOMOYO_TYPE_IS_SYMLINK, /* S_IFLNK */
80 TOMOYO_TYPE_IS_FILE, /* S_IFREG */
81 TOMOYO_TYPE_IS_BLOCK_DEV, /* S_IFBLK */
82 TOMOYO_TYPE_IS_DIRECTORY, /* S_IFDIR */
83 TOMOYO_TYPE_IS_CHAR_DEV, /* S_IFCHR */
84 TOMOYO_TYPE_IS_FIFO, /* S_IFIFO */
85 TOMOYO_MODE_SETUID, /* S_ISUID */
86 TOMOYO_MODE_SETGID, /* S_ISGID */
87 TOMOYO_MODE_STICKY, /* S_ISVTX */
88 TOMOYO_MODE_OWNER_READ, /* S_IRUSR */
89 TOMOYO_MODE_OWNER_WRITE, /* S_IWUSR */
90 TOMOYO_MODE_OWNER_EXECUTE, /* S_IXUSR */
91 TOMOYO_MODE_GROUP_READ, /* S_IRGRP */
92 TOMOYO_MODE_GROUP_WRITE, /* S_IWGRP */
93 TOMOYO_MODE_GROUP_EXECUTE, /* S_IXGRP */
94 TOMOYO_MODE_OTHERS_READ, /* S_IROTH */
95 TOMOYO_MODE_OTHERS_WRITE, /* S_IWOTH */
96 TOMOYO_MODE_OTHERS_EXECUTE, /* S_IXOTH */
Tetsuo Handa2ca9bf42011-07-08 13:23:44 +090097 TOMOYO_EXEC_REALPATH,
98 TOMOYO_SYMLINK_TARGET,
Tetsuo Handa8761afd2011-07-08 13:22:41 +090099 TOMOYO_PATH1_UID,
100 TOMOYO_PATH1_GID,
101 TOMOYO_PATH1_INO,
102 TOMOYO_PATH1_MAJOR,
103 TOMOYO_PATH1_MINOR,
104 TOMOYO_PATH1_PERM,
105 TOMOYO_PATH1_TYPE,
106 TOMOYO_PATH1_DEV_MAJOR,
107 TOMOYO_PATH1_DEV_MINOR,
108 TOMOYO_PATH2_UID,
109 TOMOYO_PATH2_GID,
110 TOMOYO_PATH2_INO,
111 TOMOYO_PATH2_MAJOR,
112 TOMOYO_PATH2_MINOR,
113 TOMOYO_PATH2_PERM,
114 TOMOYO_PATH2_TYPE,
115 TOMOYO_PATH2_DEV_MAJOR,
116 TOMOYO_PATH2_DEV_MINOR,
117 TOMOYO_PATH1_PARENT_UID,
118 TOMOYO_PATH1_PARENT_GID,
119 TOMOYO_PATH1_PARENT_INO,
120 TOMOYO_PATH1_PARENT_PERM,
121 TOMOYO_PATH2_PARENT_UID,
122 TOMOYO_PATH2_PARENT_GID,
123 TOMOYO_PATH2_PARENT_INO,
124 TOMOYO_PATH2_PARENT_PERM,
Tetsuo Handa2066a362011-07-08 13:21:37 +0900125 TOMOYO_MAX_CONDITION_KEYWORD,
126 TOMOYO_NUMBER_UNION,
Tetsuo Handa2ca9bf42011-07-08 13:23:44 +0900127 TOMOYO_NAME_UNION,
Tetsuo Handa5b636852011-07-08 13:24:54 +0900128 TOMOYO_ARGV_ENTRY,
129 TOMOYO_ENVP_ENTRY,
Tetsuo Handa2066a362011-07-08 13:21:37 +0900130};
131
Tetsuo Handa8761afd2011-07-08 13:22:41 +0900132
133/* Index numbers for stat(). */
134enum tomoyo_path_stat_index {
135 /* Do not change this order. */
136 TOMOYO_PATH1,
137 TOMOYO_PATH1_PARENT,
138 TOMOYO_PATH2,
139 TOMOYO_PATH2_PARENT,
140 TOMOYO_MAX_PATH_STAT
141};
142
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900143/* Index numbers for operation mode. */
Tetsuo Handacb0abe62010-05-17 10:08:05 +0900144enum tomoyo_mode_index {
145 TOMOYO_CONFIG_DISABLED,
146 TOMOYO_CONFIG_LEARNING,
147 TOMOYO_CONFIG_PERMISSIVE,
Tetsuo Handa57c25902010-06-03 20:38:44 +0900148 TOMOYO_CONFIG_ENFORCING,
Tetsuo Handaeadd99c2011-06-26 23:18:58 +0900149 TOMOYO_CONFIG_MAX_MODE,
150 TOMOYO_CONFIG_WANT_REJECT_LOG = 64,
151 TOMOYO_CONFIG_WANT_GRANT_LOG = 128,
152 TOMOYO_CONFIG_USE_DEFAULT = 255,
Tetsuo Handacb0abe62010-05-17 10:08:05 +0900153};
154
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900155/* Index numbers for entry type. */
Tetsuo Handaa230f9e2010-06-17 16:53:24 +0900156enum tomoyo_policy_id {
157 TOMOYO_ID_GROUP,
Tetsuo Handa059d84d2011-09-10 15:23:54 +0900158 TOMOYO_ID_ADDRESS_GROUP,
Tetsuo Handaa230f9e2010-06-17 16:53:24 +0900159 TOMOYO_ID_PATH_GROUP,
160 TOMOYO_ID_NUMBER_GROUP,
Tetsuo Handa5448ec42010-06-21 11:14:39 +0900161 TOMOYO_ID_TRANSITION_CONTROL,
Tetsuo Handaa230f9e2010-06-17 16:53:24 +0900162 TOMOYO_ID_AGGREGATOR,
Tetsuo Handaa230f9e2010-06-17 16:53:24 +0900163 TOMOYO_ID_MANAGER,
Tetsuo Handa2066a362011-07-08 13:21:37 +0900164 TOMOYO_ID_CONDITION,
Tetsuo Handaa230f9e2010-06-17 16:53:24 +0900165 TOMOYO_ID_NAME,
166 TOMOYO_ID_ACL,
167 TOMOYO_ID_DOMAIN,
168 TOMOYO_MAX_POLICY
169};
170
Tetsuo Handa2c47ab92011-06-26 23:21:19 +0900171/* Index numbers for domain's attributes. */
172enum tomoyo_domain_info_flags_index {
173 /* Quota warnning flag. */
174 TOMOYO_DIF_QUOTA_WARNED,
175 /*
176 * This domain was unable to create a new domain at
177 * tomoyo_find_next_domain() because the name of the domain to be
178 * created was too long or it could not allocate memory.
179 * More than one process continued execve() without domain transition.
180 */
181 TOMOYO_DIF_TRANSITION_FAILED,
182 TOMOYO_MAX_DOMAIN_INFO_FLAGS
183};
184
Tetsuo Handa1f067a62011-09-10 15:24:56 +0900185/* Index numbers for audit type. */
186enum tomoyo_grant_log {
187 /* Follow profile's configuration. */
188 TOMOYO_GRANTLOG_AUTO,
189 /* Do not generate grant log. */
190 TOMOYO_GRANTLOG_NO,
191 /* Generate grant_log. */
192 TOMOYO_GRANTLOG_YES,
193};
194
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900195/* Index numbers for group entries. */
Tetsuo Handaa230f9e2010-06-17 16:53:24 +0900196enum tomoyo_group_id {
197 TOMOYO_PATH_GROUP,
198 TOMOYO_NUMBER_GROUP,
Tetsuo Handa059d84d2011-09-10 15:23:54 +0900199 TOMOYO_ADDRESS_GROUP,
Tetsuo Handaa230f9e2010-06-17 16:53:24 +0900200 TOMOYO_MAX_GROUP
201};
202
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900203/* Index numbers for type of numeric values. */
204enum tomoyo_value_type {
205 TOMOYO_VALUE_TYPE_INVALID,
206 TOMOYO_VALUE_TYPE_DECIMAL,
207 TOMOYO_VALUE_TYPE_OCTAL,
208 TOMOYO_VALUE_TYPE_HEXADECIMAL,
209};
Tetsuo Handa4c3e9e22010-05-17 10:06:58 +0900210
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900211/* Index numbers for domain transition control keywords. */
Tetsuo Handa5448ec42010-06-21 11:14:39 +0900212enum tomoyo_transition_type {
213 /* Do not change this order, */
Tetsuo Handabd03a3e2011-06-26 23:19:52 +0900214 TOMOYO_TRANSITION_CONTROL_NO_RESET,
215 TOMOYO_TRANSITION_CONTROL_RESET,
Tetsuo Handa5448ec42010-06-21 11:14:39 +0900216 TOMOYO_TRANSITION_CONTROL_NO_INITIALIZE,
217 TOMOYO_TRANSITION_CONTROL_INITIALIZE,
218 TOMOYO_TRANSITION_CONTROL_NO_KEEP,
219 TOMOYO_TRANSITION_CONTROL_KEEP,
220 TOMOYO_MAX_TRANSITION_TYPE
221};
222
Tetsuo Handa76bb0892010-02-11 09:42:40 +0900223/* Index numbers for Access Controls. */
Tetsuo Handa084da352010-02-15 15:10:39 +0900224enum tomoyo_acl_entry_type_index {
Tetsuo Handa7ef61232010-02-16 08:03:30 +0900225 TOMOYO_TYPE_PATH_ACL,
226 TOMOYO_TYPE_PATH2_ACL,
Tetsuo Handaa1f9bb62010-05-17 10:09:15 +0900227 TOMOYO_TYPE_PATH_NUMBER_ACL,
Tetsuo Handa75093152010-06-16 16:23:55 +0900228 TOMOYO_TYPE_MKDEV_ACL,
Tetsuo Handa2106ccd2010-05-17 10:10:31 +0900229 TOMOYO_TYPE_MOUNT_ACL,
Tetsuo Handa059d84d2011-09-10 15:23:54 +0900230 TOMOYO_TYPE_INET_ACL,
231 TOMOYO_TYPE_UNIX_ACL,
Tetsuo Handad58e0da2011-09-10 15:22:48 +0900232 TOMOYO_TYPE_ENV_ACL,
Tetsuo Handa731d37a2011-09-10 15:25:58 +0900233 TOMOYO_TYPE_MANUAL_TASK_ACL,
Tetsuo Handa084da352010-02-15 15:10:39 +0900234};
Tetsuo Handa76bb0892010-02-11 09:42:40 +0900235
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900236/* Index numbers for access controls with one pathname. */
Tetsuo Handa084da352010-02-15 15:10:39 +0900237enum tomoyo_path_acl_index {
Tetsuo Handa7ef61232010-02-16 08:03:30 +0900238 TOMOYO_TYPE_EXECUTE,
239 TOMOYO_TYPE_READ,
240 TOMOYO_TYPE_WRITE,
Tetsuo Handa7c759642011-06-26 23:15:31 +0900241 TOMOYO_TYPE_APPEND,
Tetsuo Handa7ef61232010-02-16 08:03:30 +0900242 TOMOYO_TYPE_UNLINK,
Tetsuo Handa7c759642011-06-26 23:15:31 +0900243 TOMOYO_TYPE_GETATTR,
Tetsuo Handa7ef61232010-02-16 08:03:30 +0900244 TOMOYO_TYPE_RMDIR,
Tetsuo Handa7ef61232010-02-16 08:03:30 +0900245 TOMOYO_TYPE_TRUNCATE,
246 TOMOYO_TYPE_SYMLINK,
Tetsuo Handa7ef61232010-02-16 08:03:30 +0900247 TOMOYO_TYPE_CHROOT,
Tetsuo Handa7ef61232010-02-16 08:03:30 +0900248 TOMOYO_TYPE_UMOUNT,
249 TOMOYO_MAX_PATH_OPERATION
Tetsuo Handa084da352010-02-15 15:10:39 +0900250};
Tetsuo Handa76bb0892010-02-11 09:42:40 +0900251
Tetsuo Handab22b8b92011-06-26 23:21:50 +0900252/* Index numbers for /sys/kernel/security/tomoyo/stat interface. */
Tetsuo Handaeadd99c2011-06-26 23:18:58 +0900253enum tomoyo_memory_stat_type {
254 TOMOYO_MEMORY_POLICY,
255 TOMOYO_MEMORY_AUDIT,
256 TOMOYO_MEMORY_QUERY,
257 TOMOYO_MAX_MEMORY_STAT
258};
259
Tetsuo Handa75093152010-06-16 16:23:55 +0900260enum tomoyo_mkdev_acl_index {
Tetsuo Handaa1f9bb62010-05-17 10:09:15 +0900261 TOMOYO_TYPE_MKBLOCK,
262 TOMOYO_TYPE_MKCHAR,
Tetsuo Handa75093152010-06-16 16:23:55 +0900263 TOMOYO_MAX_MKDEV_OPERATION
Tetsuo Handaa1f9bb62010-05-17 10:09:15 +0900264};
265
Tetsuo Handa059d84d2011-09-10 15:23:54 +0900266/* Index numbers for socket operations. */
267enum tomoyo_network_acl_index {
268 TOMOYO_NETWORK_BIND, /* bind() operation. */
269 TOMOYO_NETWORK_LISTEN, /* listen() operation. */
270 TOMOYO_NETWORK_CONNECT, /* connect() operation. */
271 TOMOYO_NETWORK_SEND, /* send() operation. */
272 TOMOYO_MAX_NETWORK_OPERATION
273};
274
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900275/* Index numbers for access controls with two pathnames. */
Tetsuo Handa084da352010-02-15 15:10:39 +0900276enum tomoyo_path2_acl_index {
Tetsuo Handa7ef61232010-02-16 08:03:30 +0900277 TOMOYO_TYPE_LINK,
278 TOMOYO_TYPE_RENAME,
279 TOMOYO_TYPE_PIVOT_ROOT,
280 TOMOYO_MAX_PATH2_OPERATION
Tetsuo Handa084da352010-02-15 15:10:39 +0900281};
Tetsuo Handa76bb0892010-02-11 09:42:40 +0900282
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900283/* Index numbers for access controls with one pathname and one number. */
Tetsuo Handaa1f9bb62010-05-17 10:09:15 +0900284enum tomoyo_path_number_acl_index {
285 TOMOYO_TYPE_CREATE,
286 TOMOYO_TYPE_MKDIR,
287 TOMOYO_TYPE_MKFIFO,
288 TOMOYO_TYPE_MKSOCK,
289 TOMOYO_TYPE_IOCTL,
290 TOMOYO_TYPE_CHMOD,
291 TOMOYO_TYPE_CHOWN,
292 TOMOYO_TYPE_CHGRP,
293 TOMOYO_MAX_PATH_NUMBER_OPERATION
294};
295
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900296/* Index numbers for /sys/kernel/security/tomoyo/ interfaces. */
Tetsuo Handa084da352010-02-15 15:10:39 +0900297enum tomoyo_securityfs_interface_index {
298 TOMOYO_DOMAINPOLICY,
299 TOMOYO_EXCEPTIONPOLICY,
Tetsuo Handa084da352010-02-15 15:10:39 +0900300 TOMOYO_PROCESS_STATUS,
Tetsuo Handab22b8b92011-06-26 23:21:50 +0900301 TOMOYO_STAT,
Tetsuo Handaeadd99c2011-06-26 23:18:58 +0900302 TOMOYO_AUDIT,
Tetsuo Handa084da352010-02-15 15:10:39 +0900303 TOMOYO_VERSION,
304 TOMOYO_PROFILE,
Tetsuo Handa17fcfbd2010-05-17 10:11:36 +0900305 TOMOYO_QUERY,
Tetsuo Handa084da352010-02-15 15:10:39 +0900306 TOMOYO_MANAGER
307};
Tetsuo Handa76bb0892010-02-11 09:42:40 +0900308
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900309/* Index numbers for special mount operations. */
310enum tomoyo_special_mount {
311 TOMOYO_MOUNT_BIND, /* mount --bind /source /dest */
312 TOMOYO_MOUNT_MOVE, /* mount --move /old /new */
313 TOMOYO_MOUNT_REMOUNT, /* mount -o remount /dir */
314 TOMOYO_MOUNT_MAKE_UNBINDABLE, /* mount --make-unbindable /dir */
315 TOMOYO_MOUNT_MAKE_PRIVATE, /* mount --make-private /dir */
316 TOMOYO_MOUNT_MAKE_SLAVE, /* mount --make-slave /dir */
317 TOMOYO_MOUNT_MAKE_SHARED, /* mount --make-shared /dir */
318 TOMOYO_MAX_SPECIAL_MOUNT
319};
320
321/* Index numbers for functionality. */
Tetsuo Handa57c25902010-06-03 20:38:44 +0900322enum tomoyo_mac_index {
323 TOMOYO_MAC_FILE_EXECUTE,
324 TOMOYO_MAC_FILE_OPEN,
325 TOMOYO_MAC_FILE_CREATE,
326 TOMOYO_MAC_FILE_UNLINK,
Tetsuo Handa7c759642011-06-26 23:15:31 +0900327 TOMOYO_MAC_FILE_GETATTR,
Tetsuo Handa57c25902010-06-03 20:38:44 +0900328 TOMOYO_MAC_FILE_MKDIR,
329 TOMOYO_MAC_FILE_RMDIR,
330 TOMOYO_MAC_FILE_MKFIFO,
331 TOMOYO_MAC_FILE_MKSOCK,
332 TOMOYO_MAC_FILE_TRUNCATE,
333 TOMOYO_MAC_FILE_SYMLINK,
Tetsuo Handa57c25902010-06-03 20:38:44 +0900334 TOMOYO_MAC_FILE_MKBLOCK,
335 TOMOYO_MAC_FILE_MKCHAR,
336 TOMOYO_MAC_FILE_LINK,
337 TOMOYO_MAC_FILE_RENAME,
338 TOMOYO_MAC_FILE_CHMOD,
339 TOMOYO_MAC_FILE_CHOWN,
340 TOMOYO_MAC_FILE_CHGRP,
341 TOMOYO_MAC_FILE_IOCTL,
342 TOMOYO_MAC_FILE_CHROOT,
343 TOMOYO_MAC_FILE_MOUNT,
344 TOMOYO_MAC_FILE_UMOUNT,
345 TOMOYO_MAC_FILE_PIVOT_ROOT,
Tetsuo Handa059d84d2011-09-10 15:23:54 +0900346 TOMOYO_MAC_NETWORK_INET_STREAM_BIND,
347 TOMOYO_MAC_NETWORK_INET_STREAM_LISTEN,
348 TOMOYO_MAC_NETWORK_INET_STREAM_CONNECT,
349 TOMOYO_MAC_NETWORK_INET_DGRAM_BIND,
350 TOMOYO_MAC_NETWORK_INET_DGRAM_SEND,
351 TOMOYO_MAC_NETWORK_INET_RAW_BIND,
352 TOMOYO_MAC_NETWORK_INET_RAW_SEND,
353 TOMOYO_MAC_NETWORK_UNIX_STREAM_BIND,
354 TOMOYO_MAC_NETWORK_UNIX_STREAM_LISTEN,
355 TOMOYO_MAC_NETWORK_UNIX_STREAM_CONNECT,
356 TOMOYO_MAC_NETWORK_UNIX_DGRAM_BIND,
357 TOMOYO_MAC_NETWORK_UNIX_DGRAM_SEND,
358 TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_BIND,
359 TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_LISTEN,
360 TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_CONNECT,
Tetsuo Handad58e0da2011-09-10 15:22:48 +0900361 TOMOYO_MAC_ENVIRON,
Tetsuo Handa57c25902010-06-03 20:38:44 +0900362 TOMOYO_MAX_MAC_INDEX
363};
364
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900365/* Index numbers for category of functionality. */
Tetsuo Handa57c25902010-06-03 20:38:44 +0900366enum tomoyo_mac_category_index {
367 TOMOYO_MAC_CATEGORY_FILE,
Tetsuo Handa059d84d2011-09-10 15:23:54 +0900368 TOMOYO_MAC_CATEGORY_NETWORK,
Tetsuo Handad58e0da2011-09-10 15:22:48 +0900369 TOMOYO_MAC_CATEGORY_MISC,
Tetsuo Handa57c25902010-06-03 20:38:44 +0900370 TOMOYO_MAX_MAC_CATEGORY_INDEX
371};
372
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900373/*
374 * Retry this request. Returned by tomoyo_supervisor() if policy violation has
375 * occurred in enforcing mode and the userspace daemon decided to retry.
376 *
377 * We must choose a positive value in order to distinguish "granted" (which is
378 * 0) and "rejected" (which is a negative value) and "retry".
379 */
380#define TOMOYO_RETRY_REQUEST 1
Tetsuo Handa17fcfbd2010-05-17 10:11:36 +0900381
Tetsuo Handab22b8b92011-06-26 23:21:50 +0900382/* Index numbers for /sys/kernel/security/tomoyo/stat interface. */
383enum tomoyo_policy_stat_type {
384 /* Do not change this order. */
385 TOMOYO_STAT_POLICY_UPDATES,
386 TOMOYO_STAT_POLICY_LEARNING, /* == TOMOYO_CONFIG_LEARNING */
387 TOMOYO_STAT_POLICY_PERMISSIVE, /* == TOMOYO_CONFIG_PERMISSIVE */
388 TOMOYO_STAT_POLICY_ENFORCING, /* == TOMOYO_CONFIG_ENFORCING */
389 TOMOYO_MAX_POLICY_STAT
390};
391
Tetsuo Handad5ca1722011-06-26 23:18:21 +0900392/* Index numbers for profile's PREFERENCE values. */
393enum tomoyo_pref_index {
Tetsuo Handaeadd99c2011-06-26 23:18:58 +0900394 TOMOYO_PREF_MAX_AUDIT_LOG,
Tetsuo Handad5ca1722011-06-26 23:18:21 +0900395 TOMOYO_PREF_MAX_LEARNING_ENTRY,
396 TOMOYO_MAX_PREF
397};
398
Tetsuo Handa76bb0892010-02-11 09:42:40 +0900399/********** Structure definitions. **********/
Kentaro Takeda95908372009-02-05 17:18:13 +0900400
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900401/* Common header for holding ACL entries. */
Tetsuo Handa82e0f002010-06-15 09:22:42 +0900402struct tomoyo_acl_head {
403 struct list_head list;
Tetsuo Handaf9732ea2011-09-25 17:50:23 +0900404 s8 is_deleted; /* true or false or TOMOYO_GC_IN_PROGRESS */
Tetsuo Handa82e0f002010-06-15 09:22:42 +0900405} __packed;
406
Tetsuo Handa0df7e8b2011-06-26 23:16:36 +0900407/* Common header for shared entries. */
408struct tomoyo_shared_acl_head {
409 struct list_head list;
410 atomic_t users;
411} __packed;
412
Tetsuo Handabd03a3e2011-06-26 23:19:52 +0900413struct tomoyo_policy_namespace;
414
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900415/* Structure for request info. */
Tetsuo Handacb0abe62010-05-17 10:08:05 +0900416struct tomoyo_request_info {
Tetsuo Handa8761afd2011-07-08 13:22:41 +0900417 /*
418 * For holding parameters specific to operations which deal files.
419 * NULL if not dealing files.
420 */
421 struct tomoyo_obj_info *obj;
Tetsuo Handa2ca9bf42011-07-08 13:23:44 +0900422 /*
423 * For holding parameters specific to execve() request.
424 * NULL if not dealing do_execve().
425 */
426 struct tomoyo_execve *ee;
Tetsuo Handacb0abe62010-05-17 10:08:05 +0900427 struct tomoyo_domain_info *domain;
Tetsuo Handacf6e9a62010-06-16 16:21:36 +0900428 /* For holding parameters. */
429 union {
430 struct {
431 const struct tomoyo_path_info *filename;
Tetsuo Handa484ca792010-07-29 14:29:55 +0900432 /* For using wildcards at tomoyo_find_next_domain(). */
433 const struct tomoyo_path_info *matched_path;
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900434 /* One of values in "enum tomoyo_path_acl_index". */
Tetsuo Handacf6e9a62010-06-16 16:21:36 +0900435 u8 operation;
436 } path;
437 struct {
438 const struct tomoyo_path_info *filename1;
439 const struct tomoyo_path_info *filename2;
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900440 /* One of values in "enum tomoyo_path2_acl_index". */
Tetsuo Handacf6e9a62010-06-16 16:21:36 +0900441 u8 operation;
442 } path2;
443 struct {
444 const struct tomoyo_path_info *filename;
445 unsigned int mode;
446 unsigned int major;
447 unsigned int minor;
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900448 /* One of values in "enum tomoyo_mkdev_acl_index". */
Tetsuo Handacf6e9a62010-06-16 16:21:36 +0900449 u8 operation;
450 } mkdev;
451 struct {
452 const struct tomoyo_path_info *filename;
453 unsigned long number;
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900454 /*
455 * One of values in
456 * "enum tomoyo_path_number_acl_index".
457 */
Tetsuo Handacf6e9a62010-06-16 16:21:36 +0900458 u8 operation;
459 } path_number;
460 struct {
Tetsuo Handad58e0da2011-09-10 15:22:48 +0900461 const struct tomoyo_path_info *name;
462 } environ;
463 struct {
Tetsuo Handa059d84d2011-09-10 15:23:54 +0900464 const __be32 *address;
465 u16 port;
466 /* One of values smaller than TOMOYO_SOCK_MAX. */
467 u8 protocol;
468 /* One of values in "enum tomoyo_network_acl_index". */
469 u8 operation;
470 bool is_ipv6;
471 } inet_network;
472 struct {
473 const struct tomoyo_path_info *address;
474 /* One of values smaller than TOMOYO_SOCK_MAX. */
475 u8 protocol;
476 /* One of values in "enum tomoyo_network_acl_index". */
477 u8 operation;
478 } unix_network;
479 struct {
Tetsuo Handacf6e9a62010-06-16 16:21:36 +0900480 const struct tomoyo_path_info *type;
481 const struct tomoyo_path_info *dir;
482 const struct tomoyo_path_info *dev;
483 unsigned long flags;
484 int need_dev;
485 } mount;
Tetsuo Handa731d37a2011-09-10 15:25:58 +0900486 struct {
487 const struct tomoyo_path_info *domainname;
488 } task;
Tetsuo Handacf6e9a62010-06-16 16:21:36 +0900489 } param;
Tetsuo Handa1f067a62011-09-10 15:24:56 +0900490 struct tomoyo_acl_info *matched_acl;
Tetsuo Handacf6e9a62010-06-16 16:21:36 +0900491 u8 param_type;
492 bool granted;
Tetsuo Handa17fcfbd2010-05-17 10:11:36 +0900493 u8 retry;
494 u8 profile;
Tetsuo Handacb0abe62010-05-17 10:08:05 +0900495 u8 mode; /* One of tomoyo_mode_index . */
Tetsuo Handa57c25902010-06-03 20:38:44 +0900496 u8 type;
Tetsuo Handacb0abe62010-05-17 10:08:05 +0900497};
498
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900499/* Structure for holding a token. */
Kentaro Takeda95908372009-02-05 17:18:13 +0900500struct tomoyo_path_info {
501 const char *name;
502 u32 hash; /* = full_name_hash(name, strlen(name)) */
Kentaro Takeda95908372009-02-05 17:18:13 +0900503 u16 const_len; /* = tomoyo_const_part_length(name) */
504 bool is_dir; /* = tomoyo_strendswith(name, "/") */
505 bool is_patterned; /* = tomoyo_path_contains_pattern(name) */
Kentaro Takeda95908372009-02-05 17:18:13 +0900506};
507
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900508/* Structure for holding string data. */
Tetsuo Handae2bf6902010-06-25 11:16:00 +0900509struct tomoyo_name {
Tetsuo Handa0df7e8b2011-06-26 23:16:36 +0900510 struct tomoyo_shared_acl_head head;
Tetsuo Handa76bb0892010-02-11 09:42:40 +0900511 struct tomoyo_path_info entry;
512};
Kentaro Takeda95908372009-02-05 17:18:13 +0900513
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900514/* Structure for holding a word. */
Tetsuo Handa7762fbf2010-05-10 17:30:26 +0900515struct tomoyo_name_union {
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900516 /* Either @filename or @group is NULL. */
Tetsuo Handa7762fbf2010-05-10 17:30:26 +0900517 const struct tomoyo_path_info *filename;
Tetsuo Handaa98aa4d2010-06-17 16:52:29 +0900518 struct tomoyo_group *group;
Tetsuo Handa7762fbf2010-05-10 17:30:26 +0900519};
520
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900521/* Structure for holding a number. */
Tetsuo Handa4c3e9e22010-05-17 10:06:58 +0900522struct tomoyo_number_union {
523 unsigned long values[2];
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900524 struct tomoyo_group *group; /* Maybe NULL. */
525 /* One of values in "enum tomoyo_value_type". */
Tetsuo Handa0df7e8b2011-06-26 23:16:36 +0900526 u8 value_type[2];
Tetsuo Handa4c3e9e22010-05-17 10:06:58 +0900527};
528
Tetsuo Handa059d84d2011-09-10 15:23:54 +0900529/* Structure for holding an IP address. */
530struct tomoyo_ipaddr_union {
531 struct in6_addr ip[2]; /* Big endian. */
532 struct tomoyo_group *group; /* Pointer to address group. */
533 bool is_ipv6; /* Valid only if @group == NULL. */
534};
535
536/* Structure for "path_group"/"number_group"/"address_group" directive. */
Tetsuo Handaa98aa4d2010-06-17 16:52:29 +0900537struct tomoyo_group {
Tetsuo Handa0df7e8b2011-06-26 23:16:36 +0900538 struct tomoyo_shared_acl_head head;
Tetsuo Handaa98aa4d2010-06-17 16:52:29 +0900539 const struct tomoyo_path_info *group_name;
540 struct list_head member_list;
Tetsuo Handaa98aa4d2010-06-17 16:52:29 +0900541};
542
Tetsuo Handa7762fbf2010-05-10 17:30:26 +0900543/* Structure for "path_group" directive. */
544struct tomoyo_path_group {
Tetsuo Handa82e0f002010-06-15 09:22:42 +0900545 struct tomoyo_acl_head head;
Tetsuo Handa7762fbf2010-05-10 17:30:26 +0900546 const struct tomoyo_path_info *member_name;
547};
548
Tetsuo Handa4c3e9e22010-05-17 10:06:58 +0900549/* Structure for "number_group" directive. */
Tetsuo Handaa98aa4d2010-06-17 16:52:29 +0900550struct tomoyo_number_group {
Tetsuo Handa82e0f002010-06-15 09:22:42 +0900551 struct tomoyo_acl_head head;
Tetsuo Handa4c3e9e22010-05-17 10:06:58 +0900552 struct tomoyo_number_union number;
553};
554
Tetsuo Handa059d84d2011-09-10 15:23:54 +0900555/* Structure for "address_group" directive. */
556struct tomoyo_address_group {
557 struct tomoyo_acl_head head;
558 /* Structure for holding an IP address. */
559 struct tomoyo_ipaddr_union address;
560};
561
Tetsuo Handa8761afd2011-07-08 13:22:41 +0900562/* Subset of "struct stat". Used by conditional ACL and audit logs. */
563struct tomoyo_mini_stat {
Eric W. Biederman609fcd12012-02-07 16:34:10 -0800564 kuid_t uid;
565 kgid_t gid;
Tetsuo Handa8761afd2011-07-08 13:22:41 +0900566 ino_t ino;
Al Virod179333f2011-08-26 23:03:17 -0400567 umode_t mode;
Tetsuo Handa8761afd2011-07-08 13:22:41 +0900568 dev_t dev;
569 dev_t rdev;
570};
571
Tetsuo Handa5b636852011-07-08 13:24:54 +0900572/* Structure for dumping argv[] and envp[] of "struct linux_binprm". */
573struct tomoyo_page_dump {
574 struct page *page; /* Previously dumped page. */
575 char *data; /* Contents of "page". Size is PAGE_SIZE. */
576};
577
Tetsuo Handa8761afd2011-07-08 13:22:41 +0900578/* Structure for attribute checks in addition to pathname checks. */
579struct tomoyo_obj_info {
580 /*
581 * True if tomoyo_get_attributes() was already called, false otherwise.
582 */
583 bool validate_done;
584 /* True if @stat[] is valid. */
585 bool stat_valid[TOMOYO_MAX_PATH_STAT];
586 /* First pathname. Initialized with { NULL, NULL } if no path. */
587 struct path path1;
588 /* Second pathname. Initialized with { NULL, NULL } if no path. */
589 struct path path2;
590 /*
591 * Information on @path1, @path1's parent directory, @path2, @path2's
592 * parent directory.
593 */
594 struct tomoyo_mini_stat stat[TOMOYO_MAX_PATH_STAT];
Tetsuo Handa2ca9bf42011-07-08 13:23:44 +0900595 /*
596 * Content of symbolic link to be created. NULL for operations other
597 * than symlink().
598 */
599 struct tomoyo_path_info *symlink_target;
600};
601
Tetsuo Handa5b636852011-07-08 13:24:54 +0900602/* Structure for argv[]. */
603struct tomoyo_argv {
604 unsigned long index;
605 const struct tomoyo_path_info *value;
606 bool is_not;
607};
608
609/* Structure for envp[]. */
610struct tomoyo_envp {
611 const struct tomoyo_path_info *name;
612 const struct tomoyo_path_info *value;
613 bool is_not;
614};
615
Tetsuo Handa2ca9bf42011-07-08 13:23:44 +0900616/* Structure for execve() operation. */
617struct tomoyo_execve {
618 struct tomoyo_request_info r;
619 struct tomoyo_obj_info obj;
620 struct linux_binprm *bprm;
Tetsuo Handa6bce98e2011-09-16 22:54:25 +0900621 const struct tomoyo_path_info *transition;
Tetsuo Handa5b636852011-07-08 13:24:54 +0900622 /* For dumping argv[] and envp[]. */
623 struct tomoyo_page_dump dump;
Tetsuo Handa2ca9bf42011-07-08 13:23:44 +0900624 /* For temporary use. */
625 char *tmp; /* Size is TOMOYO_EXEC_TMPSIZE bytes */
Tetsuo Handa8761afd2011-07-08 13:22:41 +0900626};
627
Tetsuo Handa2066a362011-07-08 13:21:37 +0900628/* Structure for entries which follows "struct tomoyo_condition". */
629struct tomoyo_condition_element {
Tetsuo Handa5b636852011-07-08 13:24:54 +0900630 /*
631 * Left hand operand. A "struct tomoyo_argv" for TOMOYO_ARGV_ENTRY, a
632 * "struct tomoyo_envp" for TOMOYO_ENVP_ENTRY is attached to the tail
633 * of the array of this struct.
634 */
Tetsuo Handa2066a362011-07-08 13:21:37 +0900635 u8 left;
Tetsuo Handa5b636852011-07-08 13:24:54 +0900636 /*
637 * Right hand operand. A "struct tomoyo_number_union" for
638 * TOMOYO_NUMBER_UNION, a "struct tomoyo_name_union" for
639 * TOMOYO_NAME_UNION is attached to the tail of the array of this
640 * struct.
641 */
Tetsuo Handa2066a362011-07-08 13:21:37 +0900642 u8 right;
643 /* Equation operator. True if equals or overlaps, false otherwise. */
644 bool equals;
645};
646
647/* Structure for optional arguments. */
648struct tomoyo_condition {
649 struct tomoyo_shared_acl_head head;
650 u32 size; /* Memory size allocated for this entry. */
651 u16 condc; /* Number of conditions in this struct. */
652 u16 numbers_count; /* Number of "struct tomoyo_number_union values". */
Tetsuo Handa2ca9bf42011-07-08 13:23:44 +0900653 u16 names_count; /* Number of "struct tomoyo_name_union names". */
Tetsuo Handa5b636852011-07-08 13:24:54 +0900654 u16 argc; /* Number of "struct tomoyo_argv". */
655 u16 envc; /* Number of "struct tomoyo_envp". */
Tetsuo Handa1f067a62011-09-10 15:24:56 +0900656 u8 grant_log; /* One of values in "enum tomoyo_grant_log". */
Tetsuo Handa6bce98e2011-09-16 22:54:25 +0900657 const struct tomoyo_path_info *transit; /* Maybe NULL. */
Tetsuo Handa2066a362011-07-08 13:21:37 +0900658 /*
659 * struct tomoyo_condition_element condition[condc];
660 * struct tomoyo_number_union values[numbers_count];
Tetsuo Handa2ca9bf42011-07-08 13:23:44 +0900661 * struct tomoyo_name_union names[names_count];
Tetsuo Handa5b636852011-07-08 13:24:54 +0900662 * struct tomoyo_argv argv[argc];
663 * struct tomoyo_envp envp[envc];
Tetsuo Handa2066a362011-07-08 13:21:37 +0900664 */
665};
666
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900667/* Common header for individual entries. */
Kentaro Takeda95908372009-02-05 17:18:13 +0900668struct tomoyo_acl_info {
669 struct list_head list;
Tetsuo Handa2066a362011-07-08 13:21:37 +0900670 struct tomoyo_condition *cond; /* Maybe NULL. */
Tetsuo Handaf9732ea2011-09-25 17:50:23 +0900671 s8 is_deleted; /* true or false or TOMOYO_GC_IN_PROGRESS */
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900672 u8 type; /* One of values in "enum tomoyo_acl_entry_type_index". */
Kentaro Takeda95908372009-02-05 17:18:13 +0900673} __packed;
674
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900675/* Structure for domain information. */
Kentaro Takeda95908372009-02-05 17:18:13 +0900676struct tomoyo_domain_info {
677 struct list_head list;
678 struct list_head acl_info_list;
679 /* Name of this domain. Never NULL. */
680 const struct tomoyo_path_info *domainname;
Tetsuo Handabd03a3e2011-06-26 23:19:52 +0900681 /* Namespace for this domain. Never NULL. */
682 struct tomoyo_policy_namespace *ns;
Kentaro Takeda95908372009-02-05 17:18:13 +0900683 u8 profile; /* Profile number to use. */
Tetsuo Handa32997142011-06-26 23:19:28 +0900684 u8 group; /* Group number to use. */
Tetsuo Handaa0558fc2009-04-06 20:49:14 +0900685 bool is_deleted; /* Delete flag. */
Tetsuo Handa2c47ab92011-06-26 23:21:19 +0900686 bool flags[TOMOYO_MAX_DOMAIN_INFO_FLAGS];
Tetsuo Handaec8e6a42010-02-11 09:43:20 +0900687 atomic_t users; /* Number of referring credentials. */
Kentaro Takeda95908372009-02-05 17:18:13 +0900688};
689
Kentaro Takeda95908372009-02-05 17:18:13 +0900690/*
Tetsuo Handa731d37a2011-09-10 15:25:58 +0900691 * Structure for "task manual_domain_transition" directive.
692 */
693struct tomoyo_task_acl {
694 struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_MANUAL_TASK_ACL */
695 /* Pointer to domainname. */
696 const struct tomoyo_path_info *domainname;
697};
698
699/*
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900700 * Structure for "file execute", "file read", "file write", "file append",
701 * "file unlink", "file getattr", "file rmdir", "file truncate",
702 * "file symlink", "file chroot" and "file unmount" directive.
Kentaro Takeda95908372009-02-05 17:18:13 +0900703 */
Tetsuo Handa7ef61232010-02-16 08:03:30 +0900704struct tomoyo_path_acl {
705 struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_PATH_ACL */
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900706 u16 perm; /* Bitmask of values in "enum tomoyo_path_acl_index". */
Tetsuo Handa7762fbf2010-05-10 17:30:26 +0900707 struct tomoyo_name_union name;
Kentaro Takeda95908372009-02-05 17:18:13 +0900708};
709
Tetsuo Handac3fa1092009-06-08 12:37:39 +0900710/*
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900711 * Structure for "file create", "file mkdir", "file mkfifo", "file mksock",
712 * "file ioctl", "file chmod", "file chown" and "file chgrp" directive.
Tetsuo Handaa1f9bb62010-05-17 10:09:15 +0900713 */
714struct tomoyo_path_number_acl {
715 struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_PATH_NUMBER_ACL */
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900716 /* Bitmask of values in "enum tomoyo_path_number_acl_index". */
Tetsuo Handaa1f9bb62010-05-17 10:09:15 +0900717 u8 perm;
718 struct tomoyo_name_union name;
719 struct tomoyo_number_union number;
720};
721
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900722/* Structure for "file mkblock" and "file mkchar" directive. */
Tetsuo Handa75093152010-06-16 16:23:55 +0900723struct tomoyo_mkdev_acl {
724 struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_MKDEV_ACL */
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900725 u8 perm; /* Bitmask of values in "enum tomoyo_mkdev_acl_index". */
Tetsuo Handaa1f9bb62010-05-17 10:09:15 +0900726 struct tomoyo_name_union name;
727 struct tomoyo_number_union mode;
728 struct tomoyo_number_union major;
729 struct tomoyo_number_union minor;
730};
731
732/*
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900733 * Structure for "file rename", "file link" and "file pivot_root" directive.
Tetsuo Handac3fa1092009-06-08 12:37:39 +0900734 */
Tetsuo Handa7ef61232010-02-16 08:03:30 +0900735struct tomoyo_path2_acl {
736 struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_PATH2_ACL */
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900737 u8 perm; /* Bitmask of values in "enum tomoyo_path2_acl_index". */
Tetsuo Handa7762fbf2010-05-10 17:30:26 +0900738 struct tomoyo_name_union name1;
739 struct tomoyo_name_union name2;
Kentaro Takeda95908372009-02-05 17:18:13 +0900740};
741
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900742/* Structure for "file mount" directive. */
Tetsuo Handa2106ccd2010-05-17 10:10:31 +0900743struct tomoyo_mount_acl {
744 struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_MOUNT_ACL */
Tetsuo Handa2106ccd2010-05-17 10:10:31 +0900745 struct tomoyo_name_union dev_name;
746 struct tomoyo_name_union dir_name;
747 struct tomoyo_name_union fs_type;
748 struct tomoyo_number_union flags;
749};
750
Tetsuo Handad58e0da2011-09-10 15:22:48 +0900751/* Structure for "misc env" directive in domain policy. */
752struct tomoyo_env_acl {
753 struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_ENV_ACL */
754 const struct tomoyo_path_info *env; /* environment variable */
755};
756
Tetsuo Handa059d84d2011-09-10 15:23:54 +0900757/* Structure for "network inet" directive. */
758struct tomoyo_inet_acl {
759 struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_INET_ACL */
760 u8 protocol;
761 u8 perm; /* Bitmask of values in "enum tomoyo_network_acl_index" */
762 struct tomoyo_ipaddr_union address;
763 struct tomoyo_number_union port;
764};
765
766/* Structure for "network unix" directive. */
767struct tomoyo_unix_acl {
768 struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_UNIX_ACL */
769 u8 protocol;
770 u8 perm; /* Bitmask of values in "enum tomoyo_network_acl_index" */
771 struct tomoyo_name_union name;
772};
773
Tetsuo Handaa238cf52011-06-26 23:17:10 +0900774/* Structure for holding a line from /sys/kernel/security/tomoyo/ interface. */
775struct tomoyo_acl_param {
776 char *data;
777 struct list_head *list;
Tetsuo Handabd03a3e2011-06-26 23:19:52 +0900778 struct tomoyo_policy_namespace *ns;
Tetsuo Handaa238cf52011-06-26 23:17:10 +0900779 bool is_delete;
780};
781
Tetsuo Handa0d2171d2011-06-26 23:17:46 +0900782#define TOMOYO_MAX_IO_READ_QUEUE 64
Tetsuo Handaf23571e2010-06-24 14:57:16 +0900783
Tetsuo Handa2106ccd2010-05-17 10:10:31 +0900784/*
Tetsuo Handaf23571e2010-06-24 14:57:16 +0900785 * Structure for reading/writing policy via /sys/kernel/security/tomoyo
786 * interfaces.
Tetsuo Handac3fa1092009-06-08 12:37:39 +0900787 */
Kentaro Takeda95908372009-02-05 17:18:13 +0900788struct tomoyo_io_buffer {
Tetsuo Handa8fbe71f2010-06-16 16:29:59 +0900789 void (*read) (struct tomoyo_io_buffer *);
Kentaro Takeda95908372009-02-05 17:18:13 +0900790 int (*write) (struct tomoyo_io_buffer *);
Tetsuo Handa6041e832012-03-14 18:27:49 +0900791 unsigned int (*poll) (struct file *file, poll_table *wait);
Kentaro Takeda95908372009-02-05 17:18:13 +0900792 /* Exclusive lock for this structure. */
793 struct mutex io_sem;
Tetsuo Handaf23571e2010-06-24 14:57:16 +0900794 char __user *read_user_buf;
Tetsuo Handa2c47ab92011-06-26 23:21:19 +0900795 size_t read_user_buf_avail;
Tetsuo Handaf23571e2010-06-24 14:57:16 +0900796 struct {
Tetsuo Handabd03a3e2011-06-26 23:19:52 +0900797 struct list_head *ns;
Tetsuo Handaf23571e2010-06-24 14:57:16 +0900798 struct list_head *domain;
799 struct list_head *group;
800 struct list_head *acl;
Tetsuo Handa2c47ab92011-06-26 23:21:19 +0900801 size_t avail;
802 unsigned int step;
803 unsigned int query_index;
Tetsuo Handaf23571e2010-06-24 14:57:16 +0900804 u16 index;
Tetsuo Handa2066a362011-07-08 13:21:37 +0900805 u16 cond_index;
Tetsuo Handa32997142011-06-26 23:19:28 +0900806 u8 acl_group_index;
Tetsuo Handa2066a362011-07-08 13:21:37 +0900807 u8 cond_step;
Tetsuo Handaf23571e2010-06-24 14:57:16 +0900808 u8 bit;
809 u8 w_pos;
810 bool eof;
811 bool print_this_domain_only;
Tetsuo Handabd03a3e2011-06-26 23:19:52 +0900812 bool print_transition_related_only;
Tetsuo Handa2066a362011-07-08 13:21:37 +0900813 bool print_cond_part;
Tetsuo Handaf23571e2010-06-24 14:57:16 +0900814 const char *w[TOMOYO_MAX_IO_READ_QUEUE];
815 } r;
Tetsuo Handa0df7e8b2011-06-26 23:16:36 +0900816 struct {
Tetsuo Handabd03a3e2011-06-26 23:19:52 +0900817 struct tomoyo_policy_namespace *ns;
Tetsuo Handa0df7e8b2011-06-26 23:16:36 +0900818 /* The position currently writing to. */
819 struct tomoyo_domain_info *domain;
820 /* Bytes available for writing. */
Tetsuo Handa2c47ab92011-06-26 23:21:19 +0900821 size_t avail;
Tetsuo Handabd03a3e2011-06-26 23:19:52 +0900822 bool is_delete;
Tetsuo Handa0df7e8b2011-06-26 23:16:36 +0900823 } w;
Kentaro Takeda95908372009-02-05 17:18:13 +0900824 /* Buffer for reading. */
825 char *read_buf;
Kentaro Takeda95908372009-02-05 17:18:13 +0900826 /* Size of read buffer. */
Tetsuo Handa2c47ab92011-06-26 23:21:19 +0900827 size_t readbuf_size;
Kentaro Takeda95908372009-02-05 17:18:13 +0900828 /* Buffer for writing. */
829 char *write_buf;
Kentaro Takeda95908372009-02-05 17:18:13 +0900830 /* Size of write buffer. */
Tetsuo Handa2c47ab92011-06-26 23:21:19 +0900831 size_t writebuf_size;
Tetsuo Handa17fcfbd2010-05-17 10:11:36 +0900832 /* Type of this interface. */
Tetsuo Handa2c47ab92011-06-26 23:21:19 +0900833 enum tomoyo_securityfs_interface_index type;
Tetsuo Handa2e503bb2011-06-26 23:20:55 +0900834 /* Users counter protected by tomoyo_io_buffer_list_lock. */
835 u8 users;
836 /* List for telling GC not to kfree() elements. */
837 struct list_head list;
Kentaro Takeda95908372009-02-05 17:18:13 +0900838};
839
Tetsuo Handa76bb0892010-02-11 09:42:40 +0900840/*
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900841 * Structure for "initialize_domain"/"no_initialize_domain"/"keep_domain"/
842 * "no_keep_domain" keyword.
Tetsuo Handa76bb0892010-02-11 09:42:40 +0900843 */
Tetsuo Handa5448ec42010-06-21 11:14:39 +0900844struct tomoyo_transition_control {
Tetsuo Handa82e0f002010-06-15 09:22:42 +0900845 struct tomoyo_acl_head head;
Tetsuo Handa5448ec42010-06-21 11:14:39 +0900846 u8 type; /* One of values in "enum tomoyo_transition_type". */
Tetsuo Handa76bb0892010-02-11 09:42:40 +0900847 /* True if the domainname is tomoyo_get_last_name(). */
848 bool is_last_name;
Tetsuo Handa5448ec42010-06-21 11:14:39 +0900849 const struct tomoyo_path_info *domainname; /* Maybe NULL */
850 const struct tomoyo_path_info *program; /* Maybe NULL */
Tetsuo Handa76bb0892010-02-11 09:42:40 +0900851};
852
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900853/* Structure for "aggregator" keyword. */
Tetsuo Handae2bf6902010-06-25 11:16:00 +0900854struct tomoyo_aggregator {
Tetsuo Handa82e0f002010-06-15 09:22:42 +0900855 struct tomoyo_acl_head head;
Tetsuo Handa10843072010-06-03 20:38:03 +0900856 const struct tomoyo_path_info *original_name;
857 const struct tomoyo_path_info *aggregated_name;
Tetsuo Handa10843072010-06-03 20:38:03 +0900858};
859
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900860/* Structure for policy manager. */
Tetsuo Handae2bf6902010-06-25 11:16:00 +0900861struct tomoyo_manager {
Tetsuo Handa82e0f002010-06-15 09:22:42 +0900862 struct tomoyo_acl_head head;
Tetsuo Handa76bb0892010-02-11 09:42:40 +0900863 /* A path to program or a domainname. */
864 const struct tomoyo_path_info *manager;
Tetsuo Handa76bb0892010-02-11 09:42:40 +0900865};
866
Tetsuo Handa57c25902010-06-03 20:38:44 +0900867struct tomoyo_preference {
868 unsigned int learning_max_entry;
869 bool enforcing_verbose;
870 bool learning_verbose;
871 bool permissive_verbose;
872};
873
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900874/* Structure for /sys/kernel/security/tomnoyo/profile interface. */
Tetsuo Handa57c25902010-06-03 20:38:44 +0900875struct tomoyo_profile {
876 const struct tomoyo_path_info *comment;
877 struct tomoyo_preference *learning;
878 struct tomoyo_preference *permissive;
879 struct tomoyo_preference *enforcing;
880 struct tomoyo_preference preference;
881 u8 default_config;
882 u8 config[TOMOYO_MAX_MAC_INDEX + TOMOYO_MAX_MAC_CATEGORY_INDEX];
Tetsuo Handad5ca1722011-06-26 23:18:21 +0900883 unsigned int pref[TOMOYO_MAX_PREF];
Tetsuo Handa57c25902010-06-03 20:38:44 +0900884};
885
Tetsuo Handaeadd99c2011-06-26 23:18:58 +0900886/* Structure for representing YYYY/MM/DD hh/mm/ss. */
887struct tomoyo_time {
888 u16 year;
889 u8 month;
890 u8 day;
891 u8 hour;
892 u8 min;
893 u8 sec;
894};
895
Tetsuo Handabd03a3e2011-06-26 23:19:52 +0900896/* Structure for policy namespace. */
897struct tomoyo_policy_namespace {
898 /* Profile table. Memory is allocated as needed. */
899 struct tomoyo_profile *profile_ptr[TOMOYO_MAX_PROFILES];
900 /* List of "struct tomoyo_group". */
901 struct list_head group_list[TOMOYO_MAX_GROUP];
902 /* List of policy. */
903 struct list_head policy_list[TOMOYO_MAX_POLICY];
904 /* The global ACL referred by "use_group" keyword. */
905 struct list_head acl_group[TOMOYO_MAX_ACL_GROUPS];
906 /* List for connecting to tomoyo_namespace_list list. */
907 struct list_head namespace_list;
Tetsuo Handa843d1832011-09-14 17:03:19 +0900908 /* Profile version. Currently only 20110903 is defined. */
Tetsuo Handabd03a3e2011-06-26 23:19:52 +0900909 unsigned int profile_version;
910 /* Name of this namespace (e.g. "<kernel>", "</usr/sbin/httpd>" ). */
911 const char *name;
912};
913
Tetsuo Handa76bb0892010-02-11 09:42:40 +0900914/********** Function prototypes. **********/
915
Tetsuo Handa059d84d2011-09-10 15:23:54 +0900916bool tomoyo_address_matches_group(const bool is_ipv6, const __be32 *address,
917 const struct tomoyo_group *group);
Tetsuo Handa2106ccd2010-05-17 10:10:31 +0900918bool tomoyo_compare_number_union(const unsigned long value,
919 const struct tomoyo_number_union *ptr);
Tetsuo Handa2066a362011-07-08 13:21:37 +0900920bool tomoyo_condition(struct tomoyo_request_info *r,
921 const struct tomoyo_condition *cond);
Tetsuo Handa75093152010-06-16 16:23:55 +0900922bool tomoyo_correct_domain(const unsigned char *domainname);
Tetsuo Handa75093152010-06-16 16:23:55 +0900923bool tomoyo_correct_path(const char *filename);
924bool tomoyo_correct_word(const char *string);
Tetsuo Handa75093152010-06-16 16:23:55 +0900925bool tomoyo_domain_def(const unsigned char *buffer);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +0900926bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r);
Tetsuo Handa5b636852011-07-08 13:24:54 +0900927bool tomoyo_dump_page(struct linux_binprm *bprm, unsigned long pos,
928 struct tomoyo_page_dump *dump);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +0900929bool tomoyo_memory_ok(void *ptr);
Tetsuo Handa4c3e9e22010-05-17 10:06:58 +0900930bool tomoyo_number_matches_group(const unsigned long min,
931 const unsigned long max,
Tetsuo Handaa98aa4d2010-06-17 16:52:29 +0900932 const struct tomoyo_group *group);
Tetsuo Handa059d84d2011-09-10 15:23:54 +0900933bool tomoyo_parse_ipaddr_union(struct tomoyo_acl_param *param,
934 struct tomoyo_ipaddr_union *ptr);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +0900935bool tomoyo_parse_name_union(struct tomoyo_acl_param *param,
936 struct tomoyo_name_union *ptr);
Tetsuo Handaa238cf52011-06-26 23:17:10 +0900937bool tomoyo_parse_number_union(struct tomoyo_acl_param *param,
938 struct tomoyo_number_union *ptr);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +0900939bool tomoyo_path_matches_pattern(const struct tomoyo_path_info *filename,
940 const struct tomoyo_path_info *pattern);
941bool tomoyo_permstr(const char *string, const char *keyword);
942bool tomoyo_str_starts(char **src, const char *find);
943char *tomoyo_encode(const char *str);
Tetsuo Handa059d84d2011-09-10 15:23:54 +0900944char *tomoyo_encode2(const char *str, int str_len);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +0900945char *tomoyo_init_log(struct tomoyo_request_info *r, int len, const char *fmt,
946 va_list args);
947char *tomoyo_read_token(struct tomoyo_acl_param *param);
948char *tomoyo_realpath_from_path(struct path *path);
949char *tomoyo_realpath_nofollow(const char *pathname);
950const char *tomoyo_get_exe(void);
951const char *tomoyo_yesno(const unsigned int value);
952const struct tomoyo_path_info *tomoyo_compare_name_union
953(const struct tomoyo_path_info *name, const struct tomoyo_name_union *ptr);
Tetsuo Handa731d37a2011-09-10 15:25:58 +0900954const struct tomoyo_path_info *tomoyo_get_domainname
955(struct tomoyo_acl_param *param);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +0900956const struct tomoyo_path_info *tomoyo_get_name(const char *name);
957const struct tomoyo_path_info *tomoyo_path_matches_group
958(const struct tomoyo_path_info *pathname, const struct tomoyo_group *group);
959int tomoyo_check_open_permission(struct tomoyo_domain_info *domain,
960 struct path *path, const int flag);
961int tomoyo_close_control(struct tomoyo_io_buffer *head);
Tetsuo Handad58e0da2011-09-10 15:22:48 +0900962int tomoyo_env_perm(struct tomoyo_request_info *r, const char *env);
Tetsuo Handa6bce98e2011-09-16 22:54:25 +0900963int tomoyo_execute_permission(struct tomoyo_request_info *r,
964 const struct tomoyo_path_info *filename);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +0900965int tomoyo_find_next_domain(struct linux_binprm *bprm);
966int tomoyo_get_mode(const struct tomoyo_policy_namespace *ns, const u8 profile,
967 const u8 index);
Tetsuo Handa2106ccd2010-05-17 10:10:31 +0900968int tomoyo_init_request_info(struct tomoyo_request_info *r,
Tetsuo Handa57c25902010-06-03 20:38:44 +0900969 struct tomoyo_domain_info *domain,
970 const u8 index);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +0900971int tomoyo_mkdev_perm(const u8 operation, struct path *path,
972 const unsigned int mode, unsigned int dev);
Al Viro808d4e32012-10-11 11:42:01 -0400973int tomoyo_mount_permission(const char *dev_name, struct path *path,
Tetsuo Handab5bc60b2011-06-26 23:16:03 +0900974 const char *type, unsigned long flags,
975 void *data_page);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +0900976int tomoyo_open_control(const u8 type, struct file *file);
Tetsuo Handa97d69312010-02-16 09:46:15 +0900977int tomoyo_path2_perm(const u8 operation, struct path *path1,
978 struct path *path2);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +0900979int tomoyo_path_number_perm(const u8 operation, struct path *path,
980 unsigned long number);
Tetsuo Handa97fb35e2011-07-08 13:25:53 +0900981int tomoyo_path_perm(const u8 operation, struct path *path,
982 const char *target);
Tetsuo Handa6041e832012-03-14 18:27:49 +0900983unsigned int tomoyo_poll_control(struct file *file, poll_table *wait);
984unsigned int tomoyo_poll_log(struct file *file, poll_table *wait);
Tetsuo Handa059d84d2011-09-10 15:23:54 +0900985int tomoyo_socket_bind_permission(struct socket *sock, struct sockaddr *addr,
986 int addr_len);
987int tomoyo_socket_connect_permission(struct socket *sock,
988 struct sockaddr *addr, int addr_len);
989int tomoyo_socket_listen_permission(struct socket *sock);
990int tomoyo_socket_sendmsg_permission(struct socket *sock, struct msghdr *msg,
991 int size);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +0900992int tomoyo_supervisor(struct tomoyo_request_info *r, const char *fmt, ...)
993 __printf(2, 3);
Tetsuo Handa237ab452010-06-12 20:46:22 +0900994int tomoyo_update_domain(struct tomoyo_acl_info *new_entry, const int size,
Tetsuo Handaa238cf52011-06-26 23:17:10 +0900995 struct tomoyo_acl_param *param,
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +0900996 bool (*check_duplicate)
997 (const struct tomoyo_acl_info *,
998 const struct tomoyo_acl_info *),
999 bool (*merge_duplicate)
1000 (struct tomoyo_acl_info *, struct tomoyo_acl_info *,
1001 const bool));
Tetsuo Handa36f5e1f2010-06-15 09:23:26 +09001002int tomoyo_update_policy(struct tomoyo_acl_head *new_entry, const int size,
Tetsuo Handaa238cf52011-06-26 23:17:10 +09001003 struct tomoyo_acl_param *param,
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +09001004 bool (*check_duplicate)
1005 (const struct tomoyo_acl_head *,
1006 const struct tomoyo_acl_head *));
1007int tomoyo_write_aggregator(struct tomoyo_acl_param *param);
1008int tomoyo_write_file(struct tomoyo_acl_param *param);
1009int tomoyo_write_group(struct tomoyo_acl_param *param, const u8 type);
Tetsuo Handad58e0da2011-09-10 15:22:48 +09001010int tomoyo_write_misc(struct tomoyo_acl_param *param);
Tetsuo Handa059d84d2011-09-10 15:23:54 +09001011int tomoyo_write_inet_network(struct tomoyo_acl_param *param);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +09001012int tomoyo_write_transition_control(struct tomoyo_acl_param *param,
1013 const u8 type);
Tetsuo Handa059d84d2011-09-10 15:23:54 +09001014int tomoyo_write_unix_network(struct tomoyo_acl_param *param);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +09001015ssize_t tomoyo_read_control(struct tomoyo_io_buffer *head, char __user *buffer,
1016 const int buffer_len);
1017ssize_t tomoyo_write_control(struct tomoyo_io_buffer *head,
1018 const char __user *buffer, const int buffer_len);
Tetsuo Handa2066a362011-07-08 13:21:37 +09001019struct tomoyo_condition *tomoyo_get_condition(struct tomoyo_acl_param *param);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +09001020struct tomoyo_domain_info *tomoyo_assign_domain(const char *domainname,
1021 const bool transit);
1022struct tomoyo_domain_info *tomoyo_find_domain(const char *domainname);
1023struct tomoyo_group *tomoyo_get_group(struct tomoyo_acl_param *param,
1024 const u8 idx);
1025struct tomoyo_policy_namespace *tomoyo_assign_namespace
1026(const char *domainname);
1027struct tomoyo_profile *tomoyo_profile(const struct tomoyo_policy_namespace *ns,
1028 const u8 profile);
1029unsigned int tomoyo_check_flags(const struct tomoyo_domain_info *domain,
1030 const u8 index);
Tetsuo Handa2066a362011-07-08 13:21:37 +09001031u8 tomoyo_parse_ulong(unsigned long *result, char **str);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +09001032void *tomoyo_commit_ok(void *data, const unsigned int size);
1033void __init tomoyo_load_builtin_policy(void);
1034void __init tomoyo_mm_init(void);
Tetsuo Handa99a85252010-06-16 16:22:51 +09001035void tomoyo_check_acl(struct tomoyo_request_info *r,
Tetsuo Handa484ca792010-07-29 14:29:55 +09001036 bool (*check_entry) (struct tomoyo_request_info *,
Tetsuo Handa99a85252010-06-16 16:22:51 +09001037 const struct tomoyo_acl_info *));
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +09001038void tomoyo_check_profile(void);
1039void tomoyo_convert_time(time_t time, struct tomoyo_time *stamp);
Tetsuo Handa2066a362011-07-08 13:21:37 +09001040void tomoyo_del_condition(struct list_head *element);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +09001041void tomoyo_fill_path_info(struct tomoyo_path_info *ptr);
Tetsuo Handa8761afd2011-07-08 13:22:41 +09001042void tomoyo_get_attributes(struct tomoyo_obj_info *obj);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +09001043void tomoyo_init_policy_namespace(struct tomoyo_policy_namespace *ns);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +09001044void tomoyo_load_policy(const char *filename);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +09001045void tomoyo_normalize_line(unsigned char *buffer);
1046void tomoyo_notify_gc(struct tomoyo_io_buffer *head, const bool is_register);
Tetsuo Handa059d84d2011-09-10 15:23:54 +09001047void tomoyo_print_ip(char *buf, const unsigned int size,
1048 const struct tomoyo_ipaddr_union *ptr);
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +09001049void tomoyo_print_ulong(char *buffer, const int buffer_len,
1050 const unsigned long value, const u8 type);
1051void tomoyo_put_name_union(struct tomoyo_name_union *ptr);
1052void tomoyo_put_number_union(struct tomoyo_number_union *ptr);
1053void tomoyo_read_log(struct tomoyo_io_buffer *head);
1054void tomoyo_update_stat(const u8 index);
1055void tomoyo_warn_oom(const char *function);
Tetsuo Handabd03a3e2011-06-26 23:19:52 +09001056void tomoyo_write_log(struct tomoyo_request_info *r, const char *fmt, ...)
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +09001057 __printf(2, 3);
Tetsuo Handaeadd99c2011-06-26 23:18:58 +09001058void tomoyo_write_log2(struct tomoyo_request_info *r, int len, const char *fmt,
1059 va_list args);
Tetsuo Handaeadd99c2011-06-26 23:18:58 +09001060
Tetsuo Handa76bb0892010-02-11 09:42:40 +09001061/********** External variable definitions. **********/
1062
Tetsuo Handa76bb0892010-02-11 09:42:40 +09001063extern bool tomoyo_policy_loaded;
Tetsuo Handa2066a362011-07-08 13:21:37 +09001064extern const char * const tomoyo_condition_keyword
1065[TOMOYO_MAX_CONDITION_KEYWORD];
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +09001066extern const char * const tomoyo_dif[TOMOYO_MAX_DOMAIN_INFO_FLAGS];
1067extern const char * const tomoyo_mac_keywords[TOMOYO_MAX_MAC_INDEX
1068 + TOMOYO_MAX_MAC_CATEGORY_INDEX];
1069extern const char * const tomoyo_mode[TOMOYO_CONFIG_MAX_MODE];
Tetsuo Handa2c47ab92011-06-26 23:21:19 +09001070extern const char * const tomoyo_path_keyword[TOMOYO_MAX_PATH_OPERATION];
Tetsuo Handa059d84d2011-09-10 15:23:54 +09001071extern const char * const tomoyo_proto_keyword[TOMOYO_SOCK_MAX];
1072extern const char * const tomoyo_socket_keyword[TOMOYO_MAX_NETWORK_OPERATION];
Tetsuo Handa2c47ab92011-06-26 23:21:19 +09001073extern const u8 tomoyo_index2category[TOMOYO_MAX_MAC_INDEX];
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +09001074extern const u8 tomoyo_pn2mac[TOMOYO_MAX_PATH_NUMBER_OPERATION];
Tetsuo Handa0d2171d2011-06-26 23:17:46 +09001075extern const u8 tomoyo_pnnn2mac[TOMOYO_MAX_MKDEV_OPERATION];
1076extern const u8 tomoyo_pp2mac[TOMOYO_MAX_PATH2_OPERATION];
Tetsuo Handa2066a362011-07-08 13:21:37 +09001077extern struct list_head tomoyo_condition_list;
Tetsuo Handa3ddf17f2011-06-29 14:22:37 +09001078extern struct list_head tomoyo_domain_list;
1079extern struct list_head tomoyo_name_list[TOMOYO_MAX_HASH];
1080extern struct list_head tomoyo_namespace_list;
1081extern struct mutex tomoyo_policy_lock;
1082extern struct srcu_struct tomoyo_ss;
1083extern struct tomoyo_domain_info tomoyo_kernel_domain;
1084extern struct tomoyo_policy_namespace tomoyo_kernel_namespace;
Tetsuo Handaeadd99c2011-06-26 23:18:58 +09001085extern unsigned int tomoyo_memory_quota[TOMOYO_MAX_MEMORY_STAT];
1086extern unsigned int tomoyo_memory_used[TOMOYO_MAX_MEMORY_STAT];
Tetsuo Handa17fcfbd2010-05-17 10:11:36 +09001087
Tetsuo Handa76bb0892010-02-11 09:42:40 +09001088/********** Inlined functions. **********/
1089
Tetsuo Handab5bc60b2011-06-26 23:16:03 +09001090/**
1091 * tomoyo_read_lock - Take lock for protecting policy.
1092 *
1093 * Returns index number for tomoyo_read_unlock().
1094 */
Tetsuo Handa76bb0892010-02-11 09:42:40 +09001095static inline int tomoyo_read_lock(void)
1096{
1097 return srcu_read_lock(&tomoyo_ss);
1098}
1099
Tetsuo Handab5bc60b2011-06-26 23:16:03 +09001100/**
1101 * tomoyo_read_unlock - Release lock for protecting policy.
1102 *
1103 * @idx: Index number returned by tomoyo_read_lock().
1104 *
1105 * Returns nothing.
1106 */
Tetsuo Handa76bb0892010-02-11 09:42:40 +09001107static inline void tomoyo_read_unlock(int idx)
1108{
1109 srcu_read_unlock(&tomoyo_ss, idx);
1110}
1111
Tetsuo Handab5bc60b2011-06-26 23:16:03 +09001112/**
Tetsuo Handa2066a362011-07-08 13:21:37 +09001113 * tomoyo_sys_getppid - Copy of getppid().
1114 *
1115 * Returns parent process's PID.
1116 *
1117 * Alpha does not have getppid() defined. To be able to build this module on
1118 * Alpha, I have to copy getppid() from kernel/timer.c.
1119 */
1120static inline pid_t tomoyo_sys_getppid(void)
1121{
1122 pid_t pid;
1123 rcu_read_lock();
Kees Cookbb80d882011-12-08 16:30:42 -08001124 pid = task_tgid_vnr(rcu_dereference(current->real_parent));
Tetsuo Handa2066a362011-07-08 13:21:37 +09001125 rcu_read_unlock();
1126 return pid;
1127}
1128
1129/**
1130 * tomoyo_sys_getpid - Copy of getpid().
1131 *
1132 * Returns current thread's PID.
1133 *
1134 * Alpha does not have getpid() defined. To be able to build this module on
1135 * Alpha, I have to copy getpid() from kernel/timer.c.
1136 */
1137static inline pid_t tomoyo_sys_getpid(void)
1138{
1139 return task_tgid_vnr(current);
1140}
1141
1142/**
Tetsuo Handab5bc60b2011-06-26 23:16:03 +09001143 * tomoyo_pathcmp - strcmp() for "struct tomoyo_path_info" structure.
1144 *
1145 * @a: Pointer to "struct tomoyo_path_info".
1146 * @b: Pointer to "struct tomoyo_path_info".
1147 *
1148 * Returns true if @a == @b, false otherwise.
1149 */
Kentaro Takeda95908372009-02-05 17:18:13 +09001150static inline bool tomoyo_pathcmp(const struct tomoyo_path_info *a,
1151 const struct tomoyo_path_info *b)
1152{
1153 return a->hash != b->hash || strcmp(a->name, b->name);
1154}
1155
Kentaro Takeda95908372009-02-05 17:18:13 +09001156/**
Tetsuo Handab5bc60b2011-06-26 23:16:03 +09001157 * tomoyo_put_name - Drop reference on "struct tomoyo_name".
1158 *
1159 * @name: Pointer to "struct tomoyo_path_info". Maybe NULL.
1160 *
1161 * Returns nothing.
1162 */
Tetsuo Handa76bb0892010-02-11 09:42:40 +09001163static inline void tomoyo_put_name(const struct tomoyo_path_info *name)
1164{
1165 if (name) {
Tetsuo Handae2bf6902010-06-25 11:16:00 +09001166 struct tomoyo_name *ptr =
1167 container_of(name, typeof(*ptr), entry);
Tetsuo Handa0df7e8b2011-06-26 23:16:36 +09001168 atomic_dec(&ptr->head.users);
Tetsuo Handa76bb0892010-02-11 09:42:40 +09001169 }
1170}
Kentaro Takeda95908372009-02-05 17:18:13 +09001171
Tetsuo Handab5bc60b2011-06-26 23:16:03 +09001172/**
Tetsuo Handa2066a362011-07-08 13:21:37 +09001173 * tomoyo_put_condition - Drop reference on "struct tomoyo_condition".
1174 *
1175 * @cond: Pointer to "struct tomoyo_condition". Maybe NULL.
1176 *
1177 * Returns nothing.
1178 */
1179static inline void tomoyo_put_condition(struct tomoyo_condition *cond)
1180{
1181 if (cond)
1182 atomic_dec(&cond->head.users);
1183}
1184
1185/**
Tetsuo Handab5bc60b2011-06-26 23:16:03 +09001186 * tomoyo_put_group - Drop reference on "struct tomoyo_group".
1187 *
1188 * @group: Pointer to "struct tomoyo_group". Maybe NULL.
1189 *
1190 * Returns nothing.
1191 */
Tetsuo Handaa98aa4d2010-06-17 16:52:29 +09001192static inline void tomoyo_put_group(struct tomoyo_group *group)
Tetsuo Handa4c3e9e22010-05-17 10:06:58 +09001193{
1194 if (group)
Tetsuo Handa0df7e8b2011-06-26 23:16:36 +09001195 atomic_dec(&group->head.users);
Tetsuo Handa4c3e9e22010-05-17 10:06:58 +09001196}
1197
Tetsuo Handab5bc60b2011-06-26 23:16:03 +09001198/**
1199 * tomoyo_domain - Get "struct tomoyo_domain_info" for current thread.
1200 *
1201 * Returns pointer to "struct tomoyo_domain_info" for current thread.
1202 */
Tetsuo Handa76bb0892010-02-11 09:42:40 +09001203static inline struct tomoyo_domain_info *tomoyo_domain(void)
1204{
1205 return current_cred()->security;
1206}
Kentaro Takeda95908372009-02-05 17:18:13 +09001207
Tetsuo Handab5bc60b2011-06-26 23:16:03 +09001208/**
1209 * tomoyo_real_domain - Get "struct tomoyo_domain_info" for specified thread.
1210 *
1211 * @task: Pointer to "struct task_struct".
1212 *
1213 * Returns pointer to "struct tomoyo_security" for specified thread.
1214 */
Tetsuo Handa76bb0892010-02-11 09:42:40 +09001215static inline struct tomoyo_domain_info *tomoyo_real_domain(struct task_struct
1216 *task)
1217{
1218 return task_cred_xxx(task, security);
1219}
Kentaro Takeda95908372009-02-05 17:18:13 +09001220
Tetsuo Handab5bc60b2011-06-26 23:16:03 +09001221/**
1222 * tomoyo_same_name_union - Check for duplicated "struct tomoyo_name_union" entry.
1223 *
1224 * @a: Pointer to "struct tomoyo_name_union".
1225 * @b: Pointer to "struct tomoyo_name_union".
1226 *
1227 * Returns true if @a == @b, false otherwise.
1228 */
Tetsuo Handa75093152010-06-16 16:23:55 +09001229static inline bool tomoyo_same_name_union
Tetsuo Handab5bc60b2011-06-26 23:16:03 +09001230(const struct tomoyo_name_union *a, const struct tomoyo_name_union *b)
Tetsuo Handa7762fbf2010-05-10 17:30:26 +09001231{
Tetsuo Handa0df7e8b2011-06-26 23:16:36 +09001232 return a->filename == b->filename && a->group == b->group;
Tetsuo Handa7762fbf2010-05-10 17:30:26 +09001233}
1234
Tetsuo Handab5bc60b2011-06-26 23:16:03 +09001235/**
1236 * tomoyo_same_number_union - Check for duplicated "struct tomoyo_number_union" entry.
1237 *
1238 * @a: Pointer to "struct tomoyo_number_union".
1239 * @b: Pointer to "struct tomoyo_number_union".
1240 *
1241 * Returns true if @a == @b, false otherwise.
1242 */
Tetsuo Handa75093152010-06-16 16:23:55 +09001243static inline bool tomoyo_same_number_union
Tetsuo Handab5bc60b2011-06-26 23:16:03 +09001244(const struct tomoyo_number_union *a, const struct tomoyo_number_union *b)
Tetsuo Handa4c3e9e22010-05-17 10:06:58 +09001245{
Tetsuo Handab5bc60b2011-06-26 23:16:03 +09001246 return a->values[0] == b->values[0] && a->values[1] == b->values[1] &&
Tetsuo Handa0df7e8b2011-06-26 23:16:36 +09001247 a->group == b->group && a->value_type[0] == b->value_type[0] &&
1248 a->value_type[1] == b->value_type[1];
Tetsuo Handa4c3e9e22010-05-17 10:06:58 +09001249}
1250
Tetsuo Handabd03a3e2011-06-26 23:19:52 +09001251/**
Tetsuo Handa059d84d2011-09-10 15:23:54 +09001252 * tomoyo_same_ipaddr_union - Check for duplicated "struct tomoyo_ipaddr_union" entry.
1253 *
1254 * @a: Pointer to "struct tomoyo_ipaddr_union".
1255 * @b: Pointer to "struct tomoyo_ipaddr_union".
1256 *
1257 * Returns true if @a == @b, false otherwise.
1258 */
1259static inline bool tomoyo_same_ipaddr_union
1260(const struct tomoyo_ipaddr_union *a, const struct tomoyo_ipaddr_union *b)
1261{
1262 return !memcmp(a->ip, b->ip, sizeof(a->ip)) && a->group == b->group &&
1263 a->is_ipv6 == b->is_ipv6;
1264}
1265
1266/**
Tetsuo Handabd03a3e2011-06-26 23:19:52 +09001267 * tomoyo_current_namespace - Get "struct tomoyo_policy_namespace" for current thread.
1268 *
1269 * Returns pointer to "struct tomoyo_policy_namespace" for current thread.
1270 */
1271static inline struct tomoyo_policy_namespace *tomoyo_current_namespace(void)
1272{
1273 return tomoyo_domain()->ns;
1274}
1275
Tetsuo Handaeadd99c2011-06-26 23:18:58 +09001276#if defined(CONFIG_SLOB)
1277
1278/**
1279 * tomoyo_round2 - Round up to power of 2 for calculating memory usage.
1280 *
1281 * @size: Size to be rounded up.
1282 *
1283 * Returns @size.
1284 *
1285 * Since SLOB does not round up, this function simply returns @size.
1286 */
1287static inline int tomoyo_round2(size_t size)
1288{
1289 return size;
1290}
1291
1292#else
1293
1294/**
1295 * tomoyo_round2 - Round up to power of 2 for calculating memory usage.
1296 *
1297 * @size: Size to be rounded up.
1298 *
1299 * Returns rounded size.
1300 *
1301 * Strictly speaking, SLAB may be able to allocate (e.g.) 96 bytes instead of
1302 * (e.g.) 128 bytes.
1303 */
1304static inline int tomoyo_round2(size_t size)
1305{
1306#if PAGE_SIZE == 4096
1307 size_t bsize = 32;
1308#else
1309 size_t bsize = 64;
1310#endif
1311 if (!size)
1312 return 0;
1313 while (size > bsize)
1314 bsize <<= 1;
1315 return bsize;
1316}
1317
1318#endif
1319
Kentaro Takeda95908372009-02-05 17:18:13 +09001320/**
1321 * list_for_each_cookie - iterate over a list with cookie.
1322 * @pos: the &struct list_head to use as a loop cursor.
Kentaro Takeda95908372009-02-05 17:18:13 +09001323 * @head: the head for your list.
Kentaro Takeda95908372009-02-05 17:18:13 +09001324 */
Tetsuo Handa475e6fa2010-06-24 11:28:14 +09001325#define list_for_each_cookie(pos, head) \
1326 if (!pos) \
1327 pos = srcu_dereference((head)->next, &tomoyo_ss); \
1328 for ( ; pos != (head); pos = srcu_dereference(pos->next, &tomoyo_ss))
Tetsuo Handafdb8ebb2009-12-08 09:34:43 +09001329
Kentaro Takeda95908372009-02-05 17:18:13 +09001330#endif /* !defined(_SECURITY_TOMOYO_COMMON_H) */