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1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
2/* audit.h -- Auditing support
3 *
4 * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina.
5 * All Rights Reserved.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 * Written by Rickard E. (Rik) Faith <faith@redhat.com>
22 *
23 */
24
25#ifndef _LINUX_AUDIT_H_
26#define _LINUX_AUDIT_H_
27
28#include <linux/types.h>
29#include <linux/elf-em.h>
30
31/* The netlink messages for the audit system is divided into blocks:
32 * 1000 - 1099 are for commanding the audit system
33 * 1100 - 1199 user space trusted application messages
34 * 1200 - 1299 messages internal to the audit daemon
35 * 1300 - 1399 audit event messages
36 * 1400 - 1499 access control messages
37 * 1500 - 1599 kernel LSPP events
38 * 1600 - 1699 kernel crypto events
39 * 1700 - 1799 kernel anomaly records
40 * 1800 - 1899 kernel integrity events
41 * 1900 - 1999 future kernel use
42 * 2000 is for otherwise unclassified kernel audit messages (legacy)
43 * 2001 - 2099 unused (kernel)
44 * 2100 - 2199 user space anomaly records
45 * 2200 - 2299 user space actions taken in response to anomalies
46 * 2300 - 2399 user space generated LSPP events
47 * 2400 - 2499 user space crypto events
48 * 2500 - 2999 future user space (maybe integrity labels and related events)
49 *
50 * Messages from 1000-1199 are bi-directional. 1200-1299 & 2100 - 2999 are
51 * exclusively user space. 1300-2099 is kernel --> user space
52 * communication.
53 */
54#define AUDIT_GET 1000 /* Get status */
55#define AUDIT_SET 1001 /* Set status (enable/disable/auditd) */
56#define AUDIT_LIST 1002 /* List syscall rules -- deprecated */
57#define AUDIT_ADD 1003 /* Add syscall rule -- deprecated */
58#define AUDIT_DEL 1004 /* Delete syscall rule -- deprecated */
59#define AUDIT_USER 1005 /* Message from userspace -- deprecated */
60#define AUDIT_LOGIN 1006 /* Define the login id and information */
61#define AUDIT_WATCH_INS 1007 /* Insert file/dir watch entry */
62#define AUDIT_WATCH_REM 1008 /* Remove file/dir watch entry */
63#define AUDIT_WATCH_LIST 1009 /* List all file/dir watches */
64#define AUDIT_SIGNAL_INFO 1010 /* Get info about sender of signal to auditd */
65#define AUDIT_ADD_RULE 1011 /* Add syscall filtering rule */
66#define AUDIT_DEL_RULE 1012 /* Delete syscall filtering rule */
67#define AUDIT_LIST_RULES 1013 /* List syscall filtering rules */
68#define AUDIT_TRIM 1014 /* Trim junk from watched tree */
69#define AUDIT_MAKE_EQUIV 1015 /* Append to watched tree */
70#define AUDIT_TTY_GET 1016 /* Get TTY auditing status */
71#define AUDIT_TTY_SET 1017 /* Set TTY auditing status */
72#define AUDIT_SET_FEATURE 1018 /* Turn an audit feature on or off */
73#define AUDIT_GET_FEATURE 1019 /* Get which features are enabled */
74
75#define AUDIT_FIRST_USER_MSG 1100 /* Userspace messages mostly uninteresting to kernel */
76#define AUDIT_USER_AVC 1107 /* We filter this differently */
77#define AUDIT_USER_TTY 1124 /* Non-ICANON TTY input meaning */
78#define AUDIT_LAST_USER_MSG 1199
79#define AUDIT_FIRST_USER_MSG2 2100 /* More user space messages */
80#define AUDIT_LAST_USER_MSG2 2999
81
82#define AUDIT_DAEMON_START 1200 /* Daemon startup record */
83#define AUDIT_DAEMON_END 1201 /* Daemon normal stop record */
84#define AUDIT_DAEMON_ABORT 1202 /* Daemon error stop record */
85#define AUDIT_DAEMON_CONFIG 1203 /* Daemon config change */
86
87#define AUDIT_SYSCALL 1300 /* Syscall event */
88/* #define AUDIT_FS_WATCH 1301 * Deprecated */
89#define AUDIT_PATH 1302 /* Filename path information */
90#define AUDIT_IPC 1303 /* IPC record */
91#define AUDIT_SOCKETCALL 1304 /* sys_socketcall arguments */
92#define AUDIT_CONFIG_CHANGE 1305 /* Audit system configuration change */
93#define AUDIT_SOCKADDR 1306 /* sockaddr copied as syscall arg */
94#define AUDIT_CWD 1307 /* Current working directory */
95#define AUDIT_EXECVE 1309 /* execve arguments */
96#define AUDIT_IPC_SET_PERM 1311 /* IPC new permissions record type */
97#define AUDIT_MQ_OPEN 1312 /* POSIX MQ open record type */
98#define AUDIT_MQ_SENDRECV 1313 /* POSIX MQ send/receive record type */
99#define AUDIT_MQ_NOTIFY 1314 /* POSIX MQ notify record type */
100#define AUDIT_MQ_GETSETATTR 1315 /* POSIX MQ get/set attribute record type */
101#define AUDIT_KERNEL_OTHER 1316 /* For use by 3rd party modules */
102#define AUDIT_FD_PAIR 1317 /* audit record for pipe/socketpair */
103#define AUDIT_OBJ_PID 1318 /* ptrace target */
104#define AUDIT_TTY 1319 /* Input on an administrative TTY */
105#define AUDIT_EOE 1320 /* End of multi-record event */
106#define AUDIT_BPRM_FCAPS 1321 /* Information about fcaps increasing perms */
107#define AUDIT_CAPSET 1322 /* Record showing argument to sys_capset */
108#define AUDIT_MMAP 1323 /* Record showing descriptor and flags in mmap */
109#define AUDIT_NETFILTER_PKT 1324 /* Packets traversing netfilter chains */
110#define AUDIT_NETFILTER_CFG 1325 /* Netfilter chain modifications */
111#define AUDIT_SECCOMP 1326 /* Secure Computing event */
112#define AUDIT_PROCTITLE 1327 /* Proctitle emit event */
113#define AUDIT_FEATURE_CHANGE 1328 /* audit log listing feature changes */
114#define AUDIT_REPLACE 1329 /* Replace auditd if this packet unanswerd */
115#define AUDIT_KERN_MODULE 1330 /* Kernel Module events */
116#define AUDIT_FANOTIFY 1331 /* Fanotify access decision */
117#define AUDIT_TIME_INJOFFSET 1332 /* Timekeeping offset injected */
118#define AUDIT_TIME_ADJNTPVAL 1333 /* NTP value adjustment */
119#define AUDIT_BPF 1334 /* BPF subsystem */
120#define AUDIT_EVENT_LISTENER 1335 /* Task joined multicast read socket */
121#define AUDIT_URINGOP 1336 /* io_uring operation */
122#define AUDIT_OPENAT2 1337 /* Record showing openat2 how args */
123#define AUDIT_DM_CTRL 1338 /* Device Mapper target control */
124#define AUDIT_DM_EVENT 1339 /* Device Mapper events */
125
126#define AUDIT_AVC 1400 /* SE Linux avc denial or grant */
127#define AUDIT_SELINUX_ERR 1401 /* Internal SE Linux Errors */
128#define AUDIT_AVC_PATH 1402 /* dentry, vfsmount pair from avc */
129#define AUDIT_MAC_POLICY_LOAD 1403 /* Policy file load */
130#define AUDIT_MAC_STATUS 1404 /* Changed enforcing,permissive,off */
131#define AUDIT_MAC_CONFIG_CHANGE 1405 /* Changes to booleans */
132#define AUDIT_MAC_UNLBL_ALLOW 1406 /* NetLabel: allow unlabeled traffic */
133#define AUDIT_MAC_CIPSOV4_ADD 1407 /* NetLabel: add CIPSOv4 DOI entry */
134#define AUDIT_MAC_CIPSOV4_DEL 1408 /* NetLabel: del CIPSOv4 DOI entry */
135#define AUDIT_MAC_MAP_ADD 1409 /* NetLabel: add LSM domain mapping */
136#define AUDIT_MAC_MAP_DEL 1410 /* NetLabel: del LSM domain mapping */
137#define AUDIT_MAC_IPSEC_ADDSA 1411 /* Not used */
138#define AUDIT_MAC_IPSEC_DELSA 1412 /* Not used */
139#define AUDIT_MAC_IPSEC_ADDSPD 1413 /* Not used */
140#define AUDIT_MAC_IPSEC_DELSPD 1414 /* Not used */
141#define AUDIT_MAC_IPSEC_EVENT 1415 /* Audit an IPSec event */
142#define AUDIT_MAC_UNLBL_STCADD 1416 /* NetLabel: add a static label */
143#define AUDIT_MAC_UNLBL_STCDEL 1417 /* NetLabel: del a static label */
144#define AUDIT_MAC_CALIPSO_ADD 1418 /* NetLabel: add CALIPSO DOI entry */
145#define AUDIT_MAC_CALIPSO_DEL 1419 /* NetLabel: del CALIPSO DOI entry */
146#define AUDIT_IPE_ACCESS 1420 /* IPE denial or grant */
147#define AUDIT_IPE_CONFIG_CHANGE 1421 /* IPE config change */
148#define AUDIT_IPE_POLICY_LOAD 1422 /* IPE policy load */
149#define AUDIT_LANDLOCK_ACCESS 1423 /* Landlock denial */
150#define AUDIT_LANDLOCK_DOMAIN 1424 /* Landlock domain status */
151
152#define AUDIT_FIRST_KERN_ANOM_MSG 1700
153#define AUDIT_LAST_KERN_ANOM_MSG 1799
154#define AUDIT_ANOM_PROMISCUOUS 1700 /* Device changed promiscuous mode */
155#define AUDIT_ANOM_ABEND 1701 /* Process ended abnormally */
156#define AUDIT_ANOM_LINK 1702 /* Suspicious use of file links */
157#define AUDIT_ANOM_CREAT 1703 /* Suspicious file creation */
158#define AUDIT_INTEGRITY_DATA 1800 /* Data integrity verification */
159#define AUDIT_INTEGRITY_METADATA 1801 /* Metadata integrity verification */
160#define AUDIT_INTEGRITY_STATUS 1802 /* Integrity enable status */
161#define AUDIT_INTEGRITY_HASH 1803 /* Integrity HASH type */
162#define AUDIT_INTEGRITY_PCR 1804 /* PCR invalidation msgs */
163#define AUDIT_INTEGRITY_RULE 1805 /* policy rule */
164#define AUDIT_INTEGRITY_EVM_XATTR 1806 /* New EVM-covered xattr */
165#define AUDIT_INTEGRITY_POLICY_RULE 1807 /* IMA policy rules */
166#define AUDIT_INTEGRITY_USERSPACE 1808 /* Userspace enforced data integrity */
167
168#define AUDIT_KERNEL 2000 /* Asynchronous audit record. NOT A REQUEST. */
169
170/* Rule flags */
171#define AUDIT_FILTER_USER 0x00 /* Apply rule to user-generated messages */
172#define AUDIT_FILTER_TASK 0x01 /* Apply rule at task creation (not syscall) */
173#define AUDIT_FILTER_ENTRY 0x02 /* Apply rule at syscall entry */
174#define AUDIT_FILTER_WATCH 0x03 /* Apply rule to file system watches */
175#define AUDIT_FILTER_EXIT 0x04 /* Apply rule at syscall exit */
176#define AUDIT_FILTER_EXCLUDE 0x05 /* Apply rule before record creation */
177#define AUDIT_FILTER_TYPE AUDIT_FILTER_EXCLUDE /* obsolete misleading naming */
178#define AUDIT_FILTER_FS 0x06 /* Apply rule at __audit_inode_child */
179#define AUDIT_FILTER_URING_EXIT 0x07 /* Apply rule at io_uring op exit */
180
181#define AUDIT_NR_FILTERS 8
182
183#define AUDIT_FILTER_PREPEND 0x10 /* Prepend to front of list */
184
185/* Rule actions */
186#define AUDIT_NEVER 0 /* Do not build context if rule matches */
187#define AUDIT_POSSIBLE 1 /* Build context if rule matches */
188#define AUDIT_ALWAYS 2 /* Generate audit record if rule matches */
189
190/* Rule structure sizes -- if these change, different AUDIT_ADD and
191 * AUDIT_LIST commands must be implemented. */
192#define AUDIT_MAX_FIELDS 64
193#define AUDIT_MAX_KEY_LEN 256
194#define AUDIT_BITMASK_SIZE 64
195#define AUDIT_WORD(nr) ((__u32)((nr)/32))
196#define AUDIT_BIT(nr) (1U << ((nr) - AUDIT_WORD(nr)*32))
197
198#define AUDIT_SYSCALL_CLASSES 16
199#define AUDIT_CLASS_DIR_WRITE 0
200#define AUDIT_CLASS_DIR_WRITE_32 1
201#define AUDIT_CLASS_CHATTR 2
202#define AUDIT_CLASS_CHATTR_32 3
203#define AUDIT_CLASS_READ 4
204#define AUDIT_CLASS_READ_32 5
205#define AUDIT_CLASS_WRITE 6
206#define AUDIT_CLASS_WRITE_32 7
207#define AUDIT_CLASS_SIGNAL 8
208#define AUDIT_CLASS_SIGNAL_32 9
209
210/* This bitmask is used to validate user input. It represents all bits that
211 * are currently used in an audit field constant understood by the kernel.
212 * If you are adding a new #define AUDIT_<whatever>, please ensure that
213 * AUDIT_UNUSED_BITS is updated if need be. */
214#define AUDIT_UNUSED_BITS 0x07FFFC00
215
216/* AUDIT_FIELD_COMPARE rule list */
217#define AUDIT_COMPARE_UID_TO_OBJ_UID 1
218#define AUDIT_COMPARE_GID_TO_OBJ_GID 2
219#define AUDIT_COMPARE_EUID_TO_OBJ_UID 3
220#define AUDIT_COMPARE_EGID_TO_OBJ_GID 4
221#define AUDIT_COMPARE_AUID_TO_OBJ_UID 5
222#define AUDIT_COMPARE_SUID_TO_OBJ_UID 6
223#define AUDIT_COMPARE_SGID_TO_OBJ_GID 7
224#define AUDIT_COMPARE_FSUID_TO_OBJ_UID 8
225#define AUDIT_COMPARE_FSGID_TO_OBJ_GID 9
226
227#define AUDIT_COMPARE_UID_TO_AUID 10
228#define AUDIT_COMPARE_UID_TO_EUID 11
229#define AUDIT_COMPARE_UID_TO_FSUID 12
230#define AUDIT_COMPARE_UID_TO_SUID 13
231
232#define AUDIT_COMPARE_AUID_TO_FSUID 14
233#define AUDIT_COMPARE_AUID_TO_SUID 15
234#define AUDIT_COMPARE_AUID_TO_EUID 16
235
236#define AUDIT_COMPARE_EUID_TO_SUID 17
237#define AUDIT_COMPARE_EUID_TO_FSUID 18
238
239#define AUDIT_COMPARE_SUID_TO_FSUID 19
240
241#define AUDIT_COMPARE_GID_TO_EGID 20
242#define AUDIT_COMPARE_GID_TO_FSGID 21
243#define AUDIT_COMPARE_GID_TO_SGID 22
244
245#define AUDIT_COMPARE_EGID_TO_FSGID 23
246#define AUDIT_COMPARE_EGID_TO_SGID 24
247#define AUDIT_COMPARE_SGID_TO_FSGID 25
248
249#define AUDIT_MAX_FIELD_COMPARE AUDIT_COMPARE_SGID_TO_FSGID
250
251/* Rule fields */
252 /* These are useful when checking the
253 * task structure at task creation time
254 * (AUDIT_PER_TASK). */
255#define AUDIT_PID 0
256#define AUDIT_UID 1
257#define AUDIT_EUID 2
258#define AUDIT_SUID 3
259#define AUDIT_FSUID 4
260#define AUDIT_GID 5
261#define AUDIT_EGID 6
262#define AUDIT_SGID 7
263#define AUDIT_FSGID 8
264#define AUDIT_LOGINUID 9
265#define AUDIT_PERS 10
266#define AUDIT_ARCH 11
267#define AUDIT_MSGTYPE 12
268#define AUDIT_SUBJ_USER 13 /* security label user */
269#define AUDIT_SUBJ_ROLE 14 /* security label role */
270#define AUDIT_SUBJ_TYPE 15 /* security label type */
271#define AUDIT_SUBJ_SEN 16 /* security label sensitivity label */
272#define AUDIT_SUBJ_CLR 17 /* security label clearance label */
273#define AUDIT_PPID 18
274#define AUDIT_OBJ_USER 19
275#define AUDIT_OBJ_ROLE 20
276#define AUDIT_OBJ_TYPE 21
277#define AUDIT_OBJ_LEV_LOW 22
278#define AUDIT_OBJ_LEV_HIGH 23
279#define AUDIT_LOGINUID_SET 24
280#define AUDIT_SESSIONID 25 /* Session ID */
281#define AUDIT_FSTYPE 26 /* FileSystem Type */
282
283 /* These are ONLY useful when checking
284 * at syscall exit time (AUDIT_AT_EXIT). */
285#define AUDIT_DEVMAJOR 100
286#define AUDIT_DEVMINOR 101
287#define AUDIT_INODE 102
288#define AUDIT_EXIT 103
289#define AUDIT_SUCCESS 104 /* exit >= 0; value ignored */
290#define AUDIT_WATCH 105
291#define AUDIT_PERM 106
292#define AUDIT_DIR 107
293#define AUDIT_FILETYPE 108
294#define AUDIT_OBJ_UID 109
295#define AUDIT_OBJ_GID 110
296#define AUDIT_FIELD_COMPARE 111
297#define AUDIT_EXE 112
298#define AUDIT_SADDR_FAM 113
299
300#define AUDIT_ARG0 200
301#define AUDIT_ARG1 (AUDIT_ARG0+1)
302#define AUDIT_ARG2 (AUDIT_ARG0+2)
303#define AUDIT_ARG3 (AUDIT_ARG0+3)
304
305#define AUDIT_FILTERKEY 210
306
307#define AUDIT_NEGATE 0x80000000
308
309/* These are the supported operators.
310 * 4 2 1 8
311 * = > < ?
312 * ----------
313 * 0 0 0 0 00 nonsense
314 * 0 0 0 1 08 & bit mask
315 * 0 0 1 0 10 <
316 * 0 1 0 0 20 >
317 * 0 1 1 0 30 !=
318 * 1 0 0 0 40 =
319 * 1 0 0 1 48 &= bit test
320 * 1 0 1 0 50 <=
321 * 1 1 0 0 60 >=
322 * 1 1 1 1 78 all operators
323 */
324#define AUDIT_BIT_MASK 0x08000000
325#define AUDIT_LESS_THAN 0x10000000
326#define AUDIT_GREATER_THAN 0x20000000
327#define AUDIT_NOT_EQUAL 0x30000000
328#define AUDIT_EQUAL 0x40000000
329#define AUDIT_BIT_TEST (AUDIT_BIT_MASK|AUDIT_EQUAL)
330#define AUDIT_LESS_THAN_OR_EQUAL (AUDIT_LESS_THAN|AUDIT_EQUAL)
331#define AUDIT_GREATER_THAN_OR_EQUAL (AUDIT_GREATER_THAN|AUDIT_EQUAL)
332#define AUDIT_OPERATORS (AUDIT_EQUAL|AUDIT_NOT_EQUAL|AUDIT_BIT_MASK)
333
334enum {
335 Audit_equal,
336 Audit_not_equal,
337 Audit_bitmask,
338 Audit_bittest,
339 Audit_lt,
340 Audit_gt,
341 Audit_le,
342 Audit_ge,
343 Audit_bad
344};
345
346/* Status symbols */
347 /* Mask values */
348#define AUDIT_STATUS_ENABLED 0x0001
349#define AUDIT_STATUS_FAILURE 0x0002
350#define AUDIT_STATUS_PID 0x0004
351#define AUDIT_STATUS_RATE_LIMIT 0x0008
352#define AUDIT_STATUS_BACKLOG_LIMIT 0x0010
353#define AUDIT_STATUS_BACKLOG_WAIT_TIME 0x0020
354#define AUDIT_STATUS_LOST 0x0040
355#define AUDIT_STATUS_BACKLOG_WAIT_TIME_ACTUAL 0x0080
356
357#define AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT 0x00000001
358#define AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME 0x00000002
359#define AUDIT_FEATURE_BITMAP_EXECUTABLE_PATH 0x00000004
360#define AUDIT_FEATURE_BITMAP_EXCLUDE_EXTEND 0x00000008
361#define AUDIT_FEATURE_BITMAP_SESSIONID_FILTER 0x00000010
362#define AUDIT_FEATURE_BITMAP_LOST_RESET 0x00000020
363#define AUDIT_FEATURE_BITMAP_FILTER_FS 0x00000040
364
365#define AUDIT_FEATURE_BITMAP_ALL (AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT | \
366 AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME | \
367 AUDIT_FEATURE_BITMAP_EXECUTABLE_PATH | \
368 AUDIT_FEATURE_BITMAP_EXCLUDE_EXTEND | \
369 AUDIT_FEATURE_BITMAP_SESSIONID_FILTER | \
370 AUDIT_FEATURE_BITMAP_LOST_RESET | \
371 AUDIT_FEATURE_BITMAP_FILTER_FS)
372
373/* deprecated: AUDIT_VERSION_* */
374#define AUDIT_VERSION_LATEST AUDIT_FEATURE_BITMAP_ALL
375#define AUDIT_VERSION_BACKLOG_LIMIT AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT
376#define AUDIT_VERSION_BACKLOG_WAIT_TIME AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME
377
378 /* Failure-to-log actions */
379#define AUDIT_FAIL_SILENT 0
380#define AUDIT_FAIL_PRINTK 1
381#define AUDIT_FAIL_PANIC 2
382
383/*
384 * These bits disambiguate different calling conventions that share an
385 * ELF machine type, bitness, and endianness
386 */
387#define __AUDIT_ARCH_CONVENTION_MASK 0x30000000
388#define __AUDIT_ARCH_CONVENTION_MIPS64_N32 0x20000000
389
390/* distinguish syscall tables */
391#define __AUDIT_ARCH_64BIT 0x80000000
392#define __AUDIT_ARCH_LE 0x40000000
393
394#define AUDIT_ARCH_AARCH64 (EM_AARCH64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
395#define AUDIT_ARCH_ALPHA (EM_ALPHA|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
396#define AUDIT_ARCH_ARCOMPACT (EM_ARCOMPACT|__AUDIT_ARCH_LE)
397#define AUDIT_ARCH_ARCOMPACTBE (EM_ARCOMPACT)
398#define AUDIT_ARCH_ARCV2 (EM_ARCV2|__AUDIT_ARCH_LE)
399#define AUDIT_ARCH_ARCV2BE (EM_ARCV2)
400#define AUDIT_ARCH_ARM (EM_ARM|__AUDIT_ARCH_LE)
401#define AUDIT_ARCH_ARMEB (EM_ARM)
402#define AUDIT_ARCH_C6X (EM_TI_C6000|__AUDIT_ARCH_LE)
403#define AUDIT_ARCH_C6XBE (EM_TI_C6000)
404#define AUDIT_ARCH_CRIS (EM_CRIS|__AUDIT_ARCH_LE)
405#define AUDIT_ARCH_CSKY (EM_CSKY|__AUDIT_ARCH_LE)
406#define AUDIT_ARCH_FRV (EM_FRV)
407#define AUDIT_ARCH_H8300 (EM_H8_300)
408#define AUDIT_ARCH_HEXAGON (EM_HEXAGON)
409#define AUDIT_ARCH_I386 (EM_386|__AUDIT_ARCH_LE)
410#define AUDIT_ARCH_IA64 (EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
411#define AUDIT_ARCH_M32R (EM_M32R)
412#define AUDIT_ARCH_M68K (EM_68K)
413#define AUDIT_ARCH_MICROBLAZE (EM_MICROBLAZE)
414#define AUDIT_ARCH_MIPS (EM_MIPS)
415#define AUDIT_ARCH_MIPSEL (EM_MIPS|__AUDIT_ARCH_LE)
416#define AUDIT_ARCH_MIPS64 (EM_MIPS|__AUDIT_ARCH_64BIT)
417#define AUDIT_ARCH_MIPS64N32 (EM_MIPS|__AUDIT_ARCH_64BIT|\
418 __AUDIT_ARCH_CONVENTION_MIPS64_N32)
419#define AUDIT_ARCH_MIPSEL64 (EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
420#define AUDIT_ARCH_MIPSEL64N32 (EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE|\
421 __AUDIT_ARCH_CONVENTION_MIPS64_N32)
422#define AUDIT_ARCH_NDS32 (EM_NDS32|__AUDIT_ARCH_LE)
423#define AUDIT_ARCH_NDS32BE (EM_NDS32)
424#define AUDIT_ARCH_NIOS2 (EM_ALTERA_NIOS2|__AUDIT_ARCH_LE)
425#define AUDIT_ARCH_OPENRISC (EM_OPENRISC)
426#define AUDIT_ARCH_PARISC (EM_PARISC)
427#define AUDIT_ARCH_PARISC64 (EM_PARISC|__AUDIT_ARCH_64BIT)
428#define AUDIT_ARCH_PPC (EM_PPC)
429/* do not define AUDIT_ARCH_PPCLE since it is not supported by audit */
430#define AUDIT_ARCH_PPC64 (EM_PPC64|__AUDIT_ARCH_64BIT)
431#define AUDIT_ARCH_PPC64LE (EM_PPC64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
432#define AUDIT_ARCH_RISCV32 (EM_RISCV|__AUDIT_ARCH_LE)
433#define AUDIT_ARCH_RISCV64 (EM_RISCV|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
434#define AUDIT_ARCH_S390 (EM_S390)
435#define AUDIT_ARCH_S390X (EM_S390|__AUDIT_ARCH_64BIT)
436#define AUDIT_ARCH_SH (EM_SH)
437#define AUDIT_ARCH_SHEL (EM_SH|__AUDIT_ARCH_LE)
438#define AUDIT_ARCH_SH64 (EM_SH|__AUDIT_ARCH_64BIT)
439#define AUDIT_ARCH_SHEL64 (EM_SH|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
440#define AUDIT_ARCH_SPARC (EM_SPARC)
441#define AUDIT_ARCH_SPARC64 (EM_SPARCV9|__AUDIT_ARCH_64BIT)
442#define AUDIT_ARCH_TILEGX (EM_TILEGX|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
443#define AUDIT_ARCH_TILEGX32 (EM_TILEGX|__AUDIT_ARCH_LE)
444#define AUDIT_ARCH_TILEPRO (EM_TILEPRO|__AUDIT_ARCH_LE)
445#define AUDIT_ARCH_UNICORE (EM_UNICORE|__AUDIT_ARCH_LE)
446#define AUDIT_ARCH_X86_64 (EM_X86_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
447#define AUDIT_ARCH_XTENSA (EM_XTENSA)
448#define AUDIT_ARCH_LOONGARCH32 (EM_LOONGARCH|__AUDIT_ARCH_LE)
449#define AUDIT_ARCH_LOONGARCH64 (EM_LOONGARCH|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
450
451#define AUDIT_PERM_EXEC 1
452#define AUDIT_PERM_WRITE 2
453#define AUDIT_PERM_READ 4
454#define AUDIT_PERM_ATTR 8
455
456/* MAX_AUDIT_MESSAGE_LENGTH is set in audit:lib/libaudit.h as:
457 * 8970 // PATH_MAX*2+CONTEXT_SIZE*2+11+256+1
458 * max header+body+tailer: 44 + 29 + 32 + 262 + 7 + pad
459 */
460#define AUDIT_MESSAGE_TEXT_MAX 8560
461
462/* Multicast Netlink socket groups (default up to 32) */
463enum audit_nlgrps {
464 AUDIT_NLGRP_NONE, /* Group 0 not used */
465 AUDIT_NLGRP_READLOG, /* "best effort" read only socket */
466 __AUDIT_NLGRP_MAX
467};
468#define AUDIT_NLGRP_MAX (__AUDIT_NLGRP_MAX - 1)
469
470struct audit_status {
471 __u32 mask; /* Bit mask for valid entries */
472 __u32 enabled; /* 1 = enabled, 0 = disabled */
473 __u32 failure; /* Failure-to-log action */
474 __u32 pid; /* pid of auditd process */
475 __u32 rate_limit; /* messages rate limit (per second) */
476 __u32 backlog_limit; /* waiting messages limit */
477 __u32 lost; /* messages lost */
478 __u32 backlog; /* messages waiting in queue */
479 union {
480 __u32 version; /* deprecated: audit api version num */
481 __u32 feature_bitmap; /* bitmap of kernel audit features */
482 };
483 __u32 backlog_wait_time;/* message queue wait timeout */
484 __u32 backlog_wait_time_actual;/* time spent waiting while
485 * message limit exceeded
486 */
487};
488
489struct audit_features {
490#define AUDIT_FEATURE_VERSION 1
491 __u32 vers;
492 __u32 mask; /* which bits we are dealing with */
493 __u32 features; /* which feature to enable/disable */
494 __u32 lock; /* which features to lock */
495};
496
497#define AUDIT_FEATURE_ONLY_UNSET_LOGINUID 0
498#define AUDIT_FEATURE_LOGINUID_IMMUTABLE 1
499#define AUDIT_LAST_FEATURE AUDIT_FEATURE_LOGINUID_IMMUTABLE
500
501#define audit_feature_valid(x) ((x) >= 0 && (x) <= AUDIT_LAST_FEATURE)
502#define AUDIT_FEATURE_TO_MASK(x) (1 << ((x) & 31)) /* mask for __u32 */
503
504struct audit_tty_status {
505 __u32 enabled; /* 1 = enabled, 0 = disabled */
506 __u32 log_passwd; /* 1 = enabled, 0 = disabled */
507};
508
509#define AUDIT_UID_UNSET (unsigned int)-1
510#define AUDIT_SID_UNSET ((unsigned int)-1)
511
512/* audit_rule_data supports filter rules with both integer and string
513 * fields. It corresponds with AUDIT_ADD_RULE, AUDIT_DEL_RULE and
514 * AUDIT_LIST_RULES requests.
515 */
516struct audit_rule_data {
517 __u32 flags; /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */
518 __u32 action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */
519 __u32 field_count;
520 __u32 mask[AUDIT_BITMASK_SIZE]; /* syscall(s) affected */
521 __u32 fields[AUDIT_MAX_FIELDS];
522 __u32 values[AUDIT_MAX_FIELDS];
523 __u32 fieldflags[AUDIT_MAX_FIELDS];
524 __u32 buflen; /* total length of string fields */
525 char buf[]; /* string fields buffer */
526};
527
528#endif /* _LINUX_AUDIT_H_ */