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1 /* audit.h -- Auditing support
2  *
3  * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina.
4  * All Rights Reserved.
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19  *
20  * Written by Rickard E. (Rik) Faith <faith@redhat.com>
21  *
22  */
23 
24 #ifndef _UAPI_LINUX_AUDIT_H_
25 #define _UAPI_LINUX_AUDIT_H_
26 
27 #include <linux/types.h>
28 #include <linux/elf-em.h>
29 
30 /* The netlink messages for the audit system is divided into blocks:
31  * 1000 - 1099 are for commanding the audit system
32  * 1100 - 1199 user space trusted application messages
33  * 1200 - 1299 messages internal to the audit daemon
34  * 1300 - 1399 audit event messages
35  * 1400 - 1499 SE Linux use
36  * 1500 - 1599 kernel LSPP events
37  * 1600 - 1699 kernel crypto events
38  * 1700 - 1799 kernel anomaly records
39  * 1800 - 1899 kernel integrity events
40  * 1900 - 1999 future kernel use
41  * 2000 is for otherwise unclassified kernel audit messages (legacy)
42  * 2001 - 2099 unused (kernel)
43  * 2100 - 2199 user space anomaly records
44  * 2200 - 2299 user space actions taken in response to anomalies
45  * 2300 - 2399 user space generated LSPP events
46  * 2400 - 2499 user space crypto events
47  * 2500 - 2999 future user space (maybe integrity labels and related events)
48  *
49  * Messages from 1000-1199 are bi-directional. 1200-1299 & 2100 - 2999 are
50  * exclusively user space. 1300-2099 is kernel --> user space
51  * communication.
52  */
53 #define AUDIT_GET		1000	/* Get status */
54 #define AUDIT_SET		1001	/* Set status (enable/disable/auditd) */
55 #define AUDIT_LIST		1002	/* List syscall rules -- deprecated */
56 #define AUDIT_ADD		1003	/* Add syscall rule -- deprecated */
57 #define AUDIT_DEL		1004	/* Delete syscall rule -- deprecated */
58 #define AUDIT_USER		1005	/* Message from userspace -- deprecated */
59 #define AUDIT_LOGIN		1006	/* Define the login id and information */
60 #define AUDIT_WATCH_INS		1007	/* Insert file/dir watch entry */
61 #define AUDIT_WATCH_REM		1008	/* Remove file/dir watch entry */
62 #define AUDIT_WATCH_LIST	1009	/* List all file/dir watches */
63 #define AUDIT_SIGNAL_INFO	1010	/* Get info about sender of signal to auditd */
64 #define AUDIT_ADD_RULE		1011	/* Add syscall filtering rule */
65 #define AUDIT_DEL_RULE		1012	/* Delete syscall filtering rule */
66 #define AUDIT_LIST_RULES	1013	/* List syscall filtering rules */
67 #define AUDIT_TRIM		1014	/* Trim junk from watched tree */
68 #define AUDIT_MAKE_EQUIV	1015	/* Append to watched tree */
69 #define AUDIT_TTY_GET		1016	/* Get TTY auditing status */
70 #define AUDIT_TTY_SET		1017	/* Set TTY auditing status */
71 #define AUDIT_SET_FEATURE	1018	/* Turn an audit feature on or off */
72 #define AUDIT_GET_FEATURE	1019	/* Get which features are enabled */
73 
74 #define AUDIT_FIRST_USER_MSG	1100	/* Userspace messages mostly uninteresting to kernel */
75 #define AUDIT_USER_AVC		1107	/* We filter this differently */
76 #define AUDIT_USER_TTY		1124	/* Non-ICANON TTY input meaning */
77 #define AUDIT_LAST_USER_MSG	1199
78 #define AUDIT_FIRST_USER_MSG2	2100	/* More user space messages */
79 #define AUDIT_LAST_USER_MSG2	2999
80 
81 #define AUDIT_DAEMON_START      1200    /* Daemon startup record */
82 #define AUDIT_DAEMON_END        1201    /* Daemon normal stop record */
83 #define AUDIT_DAEMON_ABORT      1202    /* Daemon error stop record */
84 #define AUDIT_DAEMON_CONFIG     1203    /* Daemon config change */
85 
86 #define AUDIT_SYSCALL		1300	/* Syscall event */
87 /* #define AUDIT_FS_WATCH	1301	 * Deprecated */
88 #define AUDIT_PATH		1302	/* Filename path information */
89 #define AUDIT_IPC		1303	/* IPC record */
90 #define AUDIT_SOCKETCALL	1304	/* sys_socketcall arguments */
91 #define AUDIT_CONFIG_CHANGE	1305	/* Audit system configuration change */
92 #define AUDIT_SOCKADDR		1306	/* sockaddr copied as syscall arg */
93 #define AUDIT_CWD		1307	/* Current working directory */
94 #define AUDIT_EXECVE		1309	/* execve arguments */
95 #define AUDIT_IPC_SET_PERM	1311	/* IPC new permissions record type */
96 #define AUDIT_MQ_OPEN		1312	/* POSIX MQ open record type */
97 #define AUDIT_MQ_SENDRECV	1313	/* POSIX MQ send/receive record type */
98 #define AUDIT_MQ_NOTIFY		1314	/* POSIX MQ notify record type */
99 #define AUDIT_MQ_GETSETATTR	1315	/* POSIX MQ get/set attribute record type */
100 #define AUDIT_KERNEL_OTHER	1316	/* For use by 3rd party modules */
101 #define AUDIT_FD_PAIR		1317    /* audit record for pipe/socketpair */
102 #define AUDIT_OBJ_PID		1318	/* ptrace target */
103 #define AUDIT_TTY		1319	/* Input on an administrative TTY */
104 #define AUDIT_EOE		1320	/* End of multi-record event */
105 #define AUDIT_BPRM_FCAPS	1321	/* Information about fcaps increasing perms */
106 #define AUDIT_CAPSET		1322	/* Record showing argument to sys_capset */
107 #define AUDIT_MMAP		1323	/* Record showing descriptor and flags in mmap */
108 #define AUDIT_NETFILTER_PKT	1324	/* Packets traversing netfilter chains */
109 #define AUDIT_NETFILTER_CFG	1325	/* Netfilter chain modifications */
110 #define AUDIT_SECCOMP		1326	/* Secure Computing event */
111 #define AUDIT_PROCTITLE		1327	/* Proctitle emit event */
112 #define AUDIT_FEATURE_CHANGE	1328	/* audit log listing feature changes */
113 #define AUDIT_REPLACE		1329	/* Replace auditd if this packet unanswerd */
114 
115 #define AUDIT_AVC		1400	/* SE Linux avc denial or grant */
116 #define AUDIT_SELINUX_ERR	1401	/* Internal SE Linux Errors */
117 #define AUDIT_AVC_PATH		1402	/* dentry, vfsmount pair from avc */
118 #define AUDIT_MAC_POLICY_LOAD	1403	/* Policy file load */
119 #define AUDIT_MAC_STATUS	1404	/* Changed enforcing,permissive,off */
120 #define AUDIT_MAC_CONFIG_CHANGE	1405	/* Changes to booleans */
121 #define AUDIT_MAC_UNLBL_ALLOW	1406	/* NetLabel: allow unlabeled traffic */
122 #define AUDIT_MAC_CIPSOV4_ADD	1407	/* NetLabel: add CIPSOv4 DOI entry */
123 #define AUDIT_MAC_CIPSOV4_DEL	1408	/* NetLabel: del CIPSOv4 DOI entry */
124 #define AUDIT_MAC_MAP_ADD	1409	/* NetLabel: add LSM domain mapping */
125 #define AUDIT_MAC_MAP_DEL	1410	/* NetLabel: del LSM domain mapping */
126 #define AUDIT_MAC_IPSEC_ADDSA	1411	/* Not used */
127 #define AUDIT_MAC_IPSEC_DELSA	1412	/* Not used  */
128 #define AUDIT_MAC_IPSEC_ADDSPD	1413	/* Not used */
129 #define AUDIT_MAC_IPSEC_DELSPD	1414	/* Not used */
130 #define AUDIT_MAC_IPSEC_EVENT	1415	/* Audit an IPSec event */
131 #define AUDIT_MAC_UNLBL_STCADD	1416	/* NetLabel: add a static label */
132 #define AUDIT_MAC_UNLBL_STCDEL	1417	/* NetLabel: del a static label */
133 #define AUDIT_MAC_CALIPSO_ADD	1418	/* NetLabel: add CALIPSO DOI entry */
134 #define AUDIT_MAC_CALIPSO_DEL	1419	/* NetLabel: del CALIPSO DOI entry */
135 
136 #define AUDIT_FIRST_KERN_ANOM_MSG   1700
137 #define AUDIT_LAST_KERN_ANOM_MSG    1799
138 #define AUDIT_ANOM_PROMISCUOUS      1700 /* Device changed promiscuous mode */
139 #define AUDIT_ANOM_ABEND            1701 /* Process ended abnormally */
140 #define AUDIT_ANOM_LINK		    1702 /* Suspicious use of file links */
141 #define AUDIT_INTEGRITY_DATA	    1800 /* Data integrity verification */
142 #define AUDIT_INTEGRITY_METADATA    1801 /* Metadata integrity verification */
143 #define AUDIT_INTEGRITY_STATUS	    1802 /* Integrity enable status */
144 #define AUDIT_INTEGRITY_HASH	    1803 /* Integrity HASH type */
145 #define AUDIT_INTEGRITY_PCR	    1804 /* PCR invalidation msgs */
146 #define AUDIT_INTEGRITY_RULE	    1805 /* policy rule */
147 
148 #define AUDIT_KERNEL		2000	/* Asynchronous audit record. NOT A REQUEST. */
149 
150 /* Rule flags */
151 #define AUDIT_FILTER_USER	0x00	/* Apply rule to user-generated messages */
152 #define AUDIT_FILTER_TASK	0x01	/* Apply rule at task creation (not syscall) */
153 #define AUDIT_FILTER_ENTRY	0x02	/* Apply rule at syscall entry */
154 #define AUDIT_FILTER_WATCH	0x03	/* Apply rule to file system watches */
155 #define AUDIT_FILTER_EXIT	0x04	/* Apply rule at syscall exit */
156 #define AUDIT_FILTER_TYPE	0x05	/* Apply rule at audit_log_start */
157 
158 #define AUDIT_NR_FILTERS	6
159 
160 #define AUDIT_FILTER_PREPEND	0x10	/* Prepend to front of list */
161 
162 /* Rule actions */
163 #define AUDIT_NEVER    0	/* Do not build context if rule matches */
164 #define AUDIT_POSSIBLE 1	/* Build context if rule matches  */
165 #define AUDIT_ALWAYS   2	/* Generate audit record if rule matches */
166 
167 /* Rule structure sizes -- if these change, different AUDIT_ADD and
168  * AUDIT_LIST commands must be implemented. */
169 #define AUDIT_MAX_FIELDS   64
170 #define AUDIT_MAX_KEY_LEN  256
171 #define AUDIT_BITMASK_SIZE 64
172 #define AUDIT_WORD(nr) ((__u32)((nr)/32))
173 #define AUDIT_BIT(nr)  (1 << ((nr) - AUDIT_WORD(nr)*32))
174 
175 #define AUDIT_SYSCALL_CLASSES 16
176 #define AUDIT_CLASS_DIR_WRITE 0
177 #define AUDIT_CLASS_DIR_WRITE_32 1
178 #define AUDIT_CLASS_CHATTR 2
179 #define AUDIT_CLASS_CHATTR_32 3
180 #define AUDIT_CLASS_READ 4
181 #define AUDIT_CLASS_READ_32 5
182 #define AUDIT_CLASS_WRITE 6
183 #define AUDIT_CLASS_WRITE_32 7
184 #define AUDIT_CLASS_SIGNAL 8
185 #define AUDIT_CLASS_SIGNAL_32 9
186 
187 /* This bitmask is used to validate user input.  It represents all bits that
188  * are currently used in an audit field constant understood by the kernel.
189  * If you are adding a new #define AUDIT_<whatever>, please ensure that
190  * AUDIT_UNUSED_BITS is updated if need be. */
191 #define AUDIT_UNUSED_BITS	0x07FFFC00
192 
193 /* AUDIT_FIELD_COMPARE rule list */
194 #define AUDIT_COMPARE_UID_TO_OBJ_UID	1
195 #define AUDIT_COMPARE_GID_TO_OBJ_GID	2
196 #define AUDIT_COMPARE_EUID_TO_OBJ_UID	3
197 #define AUDIT_COMPARE_EGID_TO_OBJ_GID	4
198 #define AUDIT_COMPARE_AUID_TO_OBJ_UID	5
199 #define AUDIT_COMPARE_SUID_TO_OBJ_UID	6
200 #define AUDIT_COMPARE_SGID_TO_OBJ_GID	7
201 #define AUDIT_COMPARE_FSUID_TO_OBJ_UID	8
202 #define AUDIT_COMPARE_FSGID_TO_OBJ_GID	9
203 
204 #define AUDIT_COMPARE_UID_TO_AUID	10
205 #define AUDIT_COMPARE_UID_TO_EUID	11
206 #define AUDIT_COMPARE_UID_TO_FSUID	12
207 #define AUDIT_COMPARE_UID_TO_SUID	13
208 
209 #define AUDIT_COMPARE_AUID_TO_FSUID	14
210 #define AUDIT_COMPARE_AUID_TO_SUID	15
211 #define AUDIT_COMPARE_AUID_TO_EUID	16
212 
213 #define AUDIT_COMPARE_EUID_TO_SUID	17
214 #define AUDIT_COMPARE_EUID_TO_FSUID	18
215 
216 #define AUDIT_COMPARE_SUID_TO_FSUID	19
217 
218 #define AUDIT_COMPARE_GID_TO_EGID	20
219 #define AUDIT_COMPARE_GID_TO_FSGID	21
220 #define AUDIT_COMPARE_GID_TO_SGID	22
221 
222 #define AUDIT_COMPARE_EGID_TO_FSGID	23
223 #define AUDIT_COMPARE_EGID_TO_SGID	24
224 #define AUDIT_COMPARE_SGID_TO_FSGID	25
225 
226 #define AUDIT_MAX_FIELD_COMPARE		AUDIT_COMPARE_SGID_TO_FSGID
227 
228 /* Rule fields */
229 				/* These are useful when checking the
230 				 * task structure at task creation time
231 				 * (AUDIT_PER_TASK).  */
232 #define AUDIT_PID	0
233 #define AUDIT_UID	1
234 #define AUDIT_EUID	2
235 #define AUDIT_SUID	3
236 #define AUDIT_FSUID	4
237 #define AUDIT_GID	5
238 #define AUDIT_EGID	6
239 #define AUDIT_SGID	7
240 #define AUDIT_FSGID	8
241 #define AUDIT_LOGINUID	9
242 #define AUDIT_PERS	10
243 #define AUDIT_ARCH	11
244 #define AUDIT_MSGTYPE	12
245 #define AUDIT_SUBJ_USER	13	/* security label user */
246 #define AUDIT_SUBJ_ROLE	14	/* security label role */
247 #define AUDIT_SUBJ_TYPE	15	/* security label type */
248 #define AUDIT_SUBJ_SEN	16	/* security label sensitivity label */
249 #define AUDIT_SUBJ_CLR	17	/* security label clearance label */
250 #define AUDIT_PPID	18
251 #define AUDIT_OBJ_USER	19
252 #define AUDIT_OBJ_ROLE	20
253 #define AUDIT_OBJ_TYPE	21
254 #define AUDIT_OBJ_LEV_LOW	22
255 #define AUDIT_OBJ_LEV_HIGH	23
256 #define AUDIT_LOGINUID_SET	24
257 #define AUDIT_SESSIONID	25	/* Session ID */
258 
259 				/* These are ONLY useful when checking
260 				 * at syscall exit time (AUDIT_AT_EXIT). */
261 #define AUDIT_DEVMAJOR	100
262 #define AUDIT_DEVMINOR	101
263 #define AUDIT_INODE	102
264 #define AUDIT_EXIT	103
265 #define AUDIT_SUCCESS   104	/* exit >= 0; value ignored */
266 #define AUDIT_WATCH	105
267 #define AUDIT_PERM	106
268 #define AUDIT_DIR	107
269 #define AUDIT_FILETYPE	108
270 #define AUDIT_OBJ_UID	109
271 #define AUDIT_OBJ_GID	110
272 #define AUDIT_FIELD_COMPARE	111
273 #define AUDIT_EXE	112
274 
275 #define AUDIT_ARG0      200
276 #define AUDIT_ARG1      (AUDIT_ARG0+1)
277 #define AUDIT_ARG2      (AUDIT_ARG0+2)
278 #define AUDIT_ARG3      (AUDIT_ARG0+3)
279 
280 #define AUDIT_FILTERKEY	210
281 
282 #define AUDIT_NEGATE			0x80000000
283 
284 /* These are the supported operators.
285  *	4  2  1  8
286  *	=  >  <  ?
287  *	----------
288  *	0  0  0	 0	00	nonsense
289  *	0  0  0	 1	08	&  bit mask
290  *	0  0  1	 0	10	<
291  *	0  1  0	 0	20	>
292  *	0  1  1	 0	30	!=
293  *	1  0  0	 0	40	=
294  *	1  0  0	 1	48	&=  bit test
295  *	1  0  1	 0	50	<=
296  *	1  1  0	 0	60	>=
297  *	1  1  1	 1	78	all operators
298  */
299 #define AUDIT_BIT_MASK			0x08000000
300 #define AUDIT_LESS_THAN			0x10000000
301 #define AUDIT_GREATER_THAN		0x20000000
302 #define AUDIT_NOT_EQUAL			0x30000000
303 #define AUDIT_EQUAL			0x40000000
304 #define AUDIT_BIT_TEST			(AUDIT_BIT_MASK|AUDIT_EQUAL)
305 #define AUDIT_LESS_THAN_OR_EQUAL	(AUDIT_LESS_THAN|AUDIT_EQUAL)
306 #define AUDIT_GREATER_THAN_OR_EQUAL	(AUDIT_GREATER_THAN|AUDIT_EQUAL)
307 #define AUDIT_OPERATORS			(AUDIT_EQUAL|AUDIT_NOT_EQUAL|AUDIT_BIT_MASK)
308 
309 enum {
310 	Audit_equal,
311 	Audit_not_equal,
312 	Audit_bitmask,
313 	Audit_bittest,
314 	Audit_lt,
315 	Audit_gt,
316 	Audit_le,
317 	Audit_ge,
318 	Audit_bad
319 };
320 
321 /* Status symbols */
322 				/* Mask values */
323 #define AUDIT_STATUS_ENABLED		0x0001
324 #define AUDIT_STATUS_FAILURE		0x0002
325 #define AUDIT_STATUS_PID		0x0004
326 #define AUDIT_STATUS_RATE_LIMIT		0x0008
327 #define AUDIT_STATUS_BACKLOG_LIMIT	0x0010
328 #define AUDIT_STATUS_BACKLOG_WAIT_TIME	0x0020
329 
330 #define AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT	0x00000001
331 #define AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME	0x00000002
332 #define AUDIT_FEATURE_BITMAP_EXECUTABLE_PATH	0x00000004
333 #define AUDIT_FEATURE_BITMAP_EXCLUDE_EXTEND	0x00000008
334 #define AUDIT_FEATURE_BITMAP_SESSIONID_FILTER	0x00000010
335 #define AUDIT_FEATURE_BITMAP_ALL (AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT | \
336 				  AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME | \
337 				  AUDIT_FEATURE_BITMAP_EXECUTABLE_PATH | \
338 				  AUDIT_FEATURE_BITMAP_EXCLUDE_EXTEND | \
339 				  AUDIT_FEATURE_BITMAP_SESSIONID_FILTER)
340 
341 /* deprecated: AUDIT_VERSION_* */
342 #define AUDIT_VERSION_LATEST 		AUDIT_FEATURE_BITMAP_ALL
343 #define AUDIT_VERSION_BACKLOG_LIMIT	AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT
344 #define AUDIT_VERSION_BACKLOG_WAIT_TIME	AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME
345 
346 				/* Failure-to-log actions */
347 #define AUDIT_FAIL_SILENT	0
348 #define AUDIT_FAIL_PRINTK	1
349 #define AUDIT_FAIL_PANIC	2
350 
351 /*
352  * These bits disambiguate different calling conventions that share an
353  * ELF machine type, bitness, and endianness
354  */
355 #define __AUDIT_ARCH_CONVENTION_MASK 0x30000000
356 #define __AUDIT_ARCH_CONVENTION_MIPS64_N32 0x20000000
357 
358 /* distinguish syscall tables */
359 #define __AUDIT_ARCH_64BIT 0x80000000
360 #define __AUDIT_ARCH_LE	   0x40000000
361 
362 #define AUDIT_ARCH_AARCH64	(EM_AARCH64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
363 #define AUDIT_ARCH_ALPHA	(EM_ALPHA|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
364 #define AUDIT_ARCH_ARM		(EM_ARM|__AUDIT_ARCH_LE)
365 #define AUDIT_ARCH_ARMEB	(EM_ARM)
366 #define AUDIT_ARCH_CRIS		(EM_CRIS|__AUDIT_ARCH_LE)
367 #define AUDIT_ARCH_FRV		(EM_FRV)
368 #define AUDIT_ARCH_I386		(EM_386|__AUDIT_ARCH_LE)
369 #define AUDIT_ARCH_IA64		(EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
370 #define AUDIT_ARCH_M32R		(EM_M32R)
371 #define AUDIT_ARCH_M68K		(EM_68K)
372 #define AUDIT_ARCH_MICROBLAZE	(EM_MICROBLAZE)
373 #define AUDIT_ARCH_MIPS		(EM_MIPS)
374 #define AUDIT_ARCH_MIPSEL	(EM_MIPS|__AUDIT_ARCH_LE)
375 #define AUDIT_ARCH_MIPS64	(EM_MIPS|__AUDIT_ARCH_64BIT)
376 #define AUDIT_ARCH_MIPS64N32	(EM_MIPS|__AUDIT_ARCH_64BIT|\
377 				 __AUDIT_ARCH_CONVENTION_MIPS64_N32)
378 #define AUDIT_ARCH_MIPSEL64	(EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
379 #define AUDIT_ARCH_MIPSEL64N32	(EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE|\
380 				 __AUDIT_ARCH_CONVENTION_MIPS64_N32)
381 #define AUDIT_ARCH_OPENRISC	(EM_OPENRISC)
382 #define AUDIT_ARCH_PARISC	(EM_PARISC)
383 #define AUDIT_ARCH_PARISC64	(EM_PARISC|__AUDIT_ARCH_64BIT)
384 #define AUDIT_ARCH_PPC		(EM_PPC)
385 /* do not define AUDIT_ARCH_PPCLE since it is not supported by audit */
386 #define AUDIT_ARCH_PPC64	(EM_PPC64|__AUDIT_ARCH_64BIT)
387 #define AUDIT_ARCH_PPC64LE	(EM_PPC64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
388 #define AUDIT_ARCH_S390		(EM_S390)
389 #define AUDIT_ARCH_S390X	(EM_S390|__AUDIT_ARCH_64BIT)
390 #define AUDIT_ARCH_SH		(EM_SH)
391 #define AUDIT_ARCH_SHEL		(EM_SH|__AUDIT_ARCH_LE)
392 #define AUDIT_ARCH_SH64		(EM_SH|__AUDIT_ARCH_64BIT)
393 #define AUDIT_ARCH_SHEL64	(EM_SH|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
394 #define AUDIT_ARCH_SPARC	(EM_SPARC)
395 #define AUDIT_ARCH_SPARC64	(EM_SPARCV9|__AUDIT_ARCH_64BIT)
396 #define AUDIT_ARCH_TILEGX	(EM_TILEGX|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
397 #define AUDIT_ARCH_TILEGX32	(EM_TILEGX|__AUDIT_ARCH_LE)
398 #define AUDIT_ARCH_TILEPRO	(EM_TILEPRO|__AUDIT_ARCH_LE)
399 #define AUDIT_ARCH_X86_64	(EM_X86_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
400 
401 #define AUDIT_PERM_EXEC		1
402 #define AUDIT_PERM_WRITE	2
403 #define AUDIT_PERM_READ		4
404 #define AUDIT_PERM_ATTR		8
405 
406 /* MAX_AUDIT_MESSAGE_LENGTH is set in audit:lib/libaudit.h as:
407  * 8970 // PATH_MAX*2+CONTEXT_SIZE*2+11+256+1
408  * max header+body+tailer: 44 + 29 + 32 + 262 + 7 + pad
409  */
410 #define AUDIT_MESSAGE_TEXT_MAX	8560
411 
412 /* Multicast Netlink socket groups (default up to 32) */
413 enum audit_nlgrps {
414 	AUDIT_NLGRP_NONE,	/* Group 0 not used */
415 	AUDIT_NLGRP_READLOG,	/* "best effort" read only socket */
416 	__AUDIT_NLGRP_MAX
417 };
418 #define AUDIT_NLGRP_MAX                (__AUDIT_NLGRP_MAX - 1)
419 
420 struct audit_status {
421 	__u32		mask;		/* Bit mask for valid entries */
422 	__u32		enabled;	/* 1 = enabled, 0 = disabled */
423 	__u32		failure;	/* Failure-to-log action */
424 	__u32		pid;		/* pid of auditd process */
425 	__u32		rate_limit;	/* messages rate limit (per second) */
426 	__u32		backlog_limit;	/* waiting messages limit */
427 	__u32		lost;		/* messages lost */
428 	__u32		backlog;	/* messages waiting in queue */
429 	union {
430 		__u32	version;	/* deprecated: audit api version num */
431 		__u32	feature_bitmap;	/* bitmap of kernel audit features */
432 	};
433 	__u32		backlog_wait_time;/* message queue wait timeout */
434 };
435 
436 struct audit_features {
437 #define AUDIT_FEATURE_VERSION	1
438 	__u32	vers;
439 	__u32	mask;		/* which bits we are dealing with */
440 	__u32	features;	/* which feature to enable/disable */
441 	__u32	lock;		/* which features to lock */
442 };
443 
444 #define AUDIT_FEATURE_ONLY_UNSET_LOGINUID	0
445 #define AUDIT_FEATURE_LOGINUID_IMMUTABLE	1
446 #define AUDIT_LAST_FEATURE			AUDIT_FEATURE_LOGINUID_IMMUTABLE
447 
448 #define audit_feature_valid(x)		((x) >= 0 && (x) <= AUDIT_LAST_FEATURE)
449 #define AUDIT_FEATURE_TO_MASK(x)	(1 << ((x) & 31)) /* mask for __u32 */
450 
451 struct audit_tty_status {
452 	__u32		enabled;	/* 1 = enabled, 0 = disabled */
453 	__u32		log_passwd;	/* 1 = enabled, 0 = disabled */
454 };
455 
456 #define AUDIT_UID_UNSET (unsigned int)-1
457 
458 /* audit_rule_data supports filter rules with both integer and string
459  * fields.  It corresponds with AUDIT_ADD_RULE, AUDIT_DEL_RULE and
460  * AUDIT_LIST_RULES requests.
461  */
462 struct audit_rule_data {
463 	__u32		flags;	/* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */
464 	__u32		action;	/* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */
465 	__u32		field_count;
466 	__u32		mask[AUDIT_BITMASK_SIZE]; /* syscall(s) affected */
467 	__u32		fields[AUDIT_MAX_FIELDS];
468 	__u32		values[AUDIT_MAX_FIELDS];
469 	__u32		fieldflags[AUDIT_MAX_FIELDS];
470 	__u32		buflen;	/* total length of string fields */
471 	char		buf[0];	/* string fields buffer */
472 };
473 
474 #endif /* _UAPI_LINUX_AUDIT_H_ */
475