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audit.h (21743B) - Raw


      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 SE Linux use
     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 
    150 #define AUDIT_FIRST_KERN_ANOM_MSG   1700
    151 #define AUDIT_LAST_KERN_ANOM_MSG    1799
    152 #define AUDIT_ANOM_PROMISCUOUS      1700 /* Device changed promiscuous mode */
    153 #define AUDIT_ANOM_ABEND            1701 /* Process ended abnormally */
    154 #define AUDIT_ANOM_LINK		    1702 /* Suspicious use of file links */
    155 #define AUDIT_ANOM_CREAT	    1703 /* Suspicious file creation */
    156 #define AUDIT_INTEGRITY_DATA	    1800 /* Data integrity verification */
    157 #define AUDIT_INTEGRITY_METADATA    1801 /* Metadata integrity verification */
    158 #define AUDIT_INTEGRITY_STATUS	    1802 /* Integrity enable status */
    159 #define AUDIT_INTEGRITY_HASH	    1803 /* Integrity HASH type */
    160 #define AUDIT_INTEGRITY_PCR	    1804 /* PCR invalidation msgs */
    161 #define AUDIT_INTEGRITY_RULE	    1805 /* policy rule */
    162 #define AUDIT_INTEGRITY_EVM_XATTR   1806 /* New EVM-covered xattr */
    163 #define AUDIT_INTEGRITY_POLICY_RULE 1807 /* IMA policy rules */
    164 
    165 #define AUDIT_KERNEL		2000	/* Asynchronous audit record. NOT A REQUEST. */
    166 
    167 /* Rule flags */
    168 #define AUDIT_FILTER_USER	0x00	/* Apply rule to user-generated messages */
    169 #define AUDIT_FILTER_TASK	0x01	/* Apply rule at task creation (not syscall) */
    170 #define AUDIT_FILTER_ENTRY	0x02	/* Apply rule at syscall entry */
    171 #define AUDIT_FILTER_WATCH	0x03	/* Apply rule to file system watches */
    172 #define AUDIT_FILTER_EXIT	0x04	/* Apply rule at syscall exit */
    173 #define AUDIT_FILTER_EXCLUDE	0x05	/* Apply rule before record creation */
    174 #define AUDIT_FILTER_TYPE	AUDIT_FILTER_EXCLUDE /* obsolete misleading naming */
    175 #define AUDIT_FILTER_FS		0x06	/* Apply rule at __audit_inode_child */
    176 #define AUDIT_FILTER_URING_EXIT	0x07	/* Apply rule at io_uring op exit */
    177 
    178 #define AUDIT_NR_FILTERS	8
    179 
    180 #define AUDIT_FILTER_PREPEND	0x10	/* Prepend to front of list */
    181 
    182 /* Rule actions */
    183 #define AUDIT_NEVER    0	/* Do not build context if rule matches */
    184 #define AUDIT_POSSIBLE 1	/* Build context if rule matches  */
    185 #define AUDIT_ALWAYS   2	/* Generate audit record if rule matches */
    186 
    187 /* Rule structure sizes -- if these change, different AUDIT_ADD and
    188  * AUDIT_LIST commands must be implemented. */
    189 #define AUDIT_MAX_FIELDS   64
    190 #define AUDIT_MAX_KEY_LEN  256
    191 #define AUDIT_BITMASK_SIZE 64
    192 #define AUDIT_WORD(nr) ((__u32)((nr)/32))
    193 #define AUDIT_BIT(nr)  (1U << ((nr) - AUDIT_WORD(nr)*32))
    194 
    195 #define AUDIT_SYSCALL_CLASSES 16
    196 #define AUDIT_CLASS_DIR_WRITE 0
    197 #define AUDIT_CLASS_DIR_WRITE_32 1
    198 #define AUDIT_CLASS_CHATTR 2
    199 #define AUDIT_CLASS_CHATTR_32 3
    200 #define AUDIT_CLASS_READ 4
    201 #define AUDIT_CLASS_READ_32 5
    202 #define AUDIT_CLASS_WRITE 6
    203 #define AUDIT_CLASS_WRITE_32 7
    204 #define AUDIT_CLASS_SIGNAL 8
    205 #define AUDIT_CLASS_SIGNAL_32 9
    206 
    207 /* This bitmask is used to validate user input.  It represents all bits that
    208  * are currently used in an audit field constant understood by the kernel.
    209  * If you are adding a new #define AUDIT_<whatever>, please ensure that
    210  * AUDIT_UNUSED_BITS is updated if need be. */
    211 #define AUDIT_UNUSED_BITS	0x07FFFC00
    212 
    213 /* AUDIT_FIELD_COMPARE rule list */
    214 #define AUDIT_COMPARE_UID_TO_OBJ_UID	1
    215 #define AUDIT_COMPARE_GID_TO_OBJ_GID	2
    216 #define AUDIT_COMPARE_EUID_TO_OBJ_UID	3
    217 #define AUDIT_COMPARE_EGID_TO_OBJ_GID	4
    218 #define AUDIT_COMPARE_AUID_TO_OBJ_UID	5
    219 #define AUDIT_COMPARE_SUID_TO_OBJ_UID	6
    220 #define AUDIT_COMPARE_SGID_TO_OBJ_GID	7
    221 #define AUDIT_COMPARE_FSUID_TO_OBJ_UID	8
    222 #define AUDIT_COMPARE_FSGID_TO_OBJ_GID	9
    223 
    224 #define AUDIT_COMPARE_UID_TO_AUID	10
    225 #define AUDIT_COMPARE_UID_TO_EUID	11
    226 #define AUDIT_COMPARE_UID_TO_FSUID	12
    227 #define AUDIT_COMPARE_UID_TO_SUID	13
    228 
    229 #define AUDIT_COMPARE_AUID_TO_FSUID	14
    230 #define AUDIT_COMPARE_AUID_TO_SUID	15
    231 #define AUDIT_COMPARE_AUID_TO_EUID	16
    232 
    233 #define AUDIT_COMPARE_EUID_TO_SUID	17
    234 #define AUDIT_COMPARE_EUID_TO_FSUID	18
    235 
    236 #define AUDIT_COMPARE_SUID_TO_FSUID	19
    237 
    238 #define AUDIT_COMPARE_GID_TO_EGID	20
    239 #define AUDIT_COMPARE_GID_TO_FSGID	21
    240 #define AUDIT_COMPARE_GID_TO_SGID	22
    241 
    242 #define AUDIT_COMPARE_EGID_TO_FSGID	23
    243 #define AUDIT_COMPARE_EGID_TO_SGID	24
    244 #define AUDIT_COMPARE_SGID_TO_FSGID	25
    245 
    246 #define AUDIT_MAX_FIELD_COMPARE		AUDIT_COMPARE_SGID_TO_FSGID
    247 
    248 /* Rule fields */
    249 				/* These are useful when checking the
    250 				 * task structure at task creation time
    251 				 * (AUDIT_PER_TASK).  */
    252 #define AUDIT_PID	0
    253 #define AUDIT_UID	1
    254 #define AUDIT_EUID	2
    255 #define AUDIT_SUID	3
    256 #define AUDIT_FSUID	4
    257 #define AUDIT_GID	5
    258 #define AUDIT_EGID	6
    259 #define AUDIT_SGID	7
    260 #define AUDIT_FSGID	8
    261 #define AUDIT_LOGINUID	9
    262 #define AUDIT_PERS	10
    263 #define AUDIT_ARCH	11
    264 #define AUDIT_MSGTYPE	12
    265 #define AUDIT_SUBJ_USER	13	/* security label user */
    266 #define AUDIT_SUBJ_ROLE	14	/* security label role */
    267 #define AUDIT_SUBJ_TYPE	15	/* security label type */
    268 #define AUDIT_SUBJ_SEN	16	/* security label sensitivity label */
    269 #define AUDIT_SUBJ_CLR	17	/* security label clearance label */
    270 #define AUDIT_PPID	18
    271 #define AUDIT_OBJ_USER	19
    272 #define AUDIT_OBJ_ROLE	20
    273 #define AUDIT_OBJ_TYPE	21
    274 #define AUDIT_OBJ_LEV_LOW	22
    275 #define AUDIT_OBJ_LEV_HIGH	23
    276 #define AUDIT_LOGINUID_SET	24
    277 #define AUDIT_SESSIONID	25	/* Session ID */
    278 #define AUDIT_FSTYPE	26	/* FileSystem Type */
    279 
    280 				/* These are ONLY useful when checking
    281 				 * at syscall exit time (AUDIT_AT_EXIT). */
    282 #define AUDIT_DEVMAJOR	100
    283 #define AUDIT_DEVMINOR	101
    284 #define AUDIT_INODE	102
    285 #define AUDIT_EXIT	103
    286 #define AUDIT_SUCCESS   104	/* exit >= 0; value ignored */
    287 #define AUDIT_WATCH	105
    288 #define AUDIT_PERM	106
    289 #define AUDIT_DIR	107
    290 #define AUDIT_FILETYPE	108
    291 #define AUDIT_OBJ_UID	109
    292 #define AUDIT_OBJ_GID	110
    293 #define AUDIT_FIELD_COMPARE	111
    294 #define AUDIT_EXE	112
    295 #define AUDIT_SADDR_FAM	113
    296 
    297 #define AUDIT_ARG0      200
    298 #define AUDIT_ARG1      (AUDIT_ARG0+1)
    299 #define AUDIT_ARG2      (AUDIT_ARG0+2)
    300 #define AUDIT_ARG3      (AUDIT_ARG0+3)
    301 
    302 #define AUDIT_FILTERKEY	210
    303 
    304 #define AUDIT_NEGATE			0x80000000
    305 
    306 /* These are the supported operators.
    307  *	4  2  1  8
    308  *	=  >  <  ?
    309  *	----------
    310  *	0  0  0	 0	00	nonsense
    311  *	0  0  0	 1	08	&  bit mask
    312  *	0  0  1	 0	10	<
    313  *	0  1  0	 0	20	>
    314  *	0  1  1	 0	30	!=
    315  *	1  0  0	 0	40	=
    316  *	1  0  0	 1	48	&=  bit test
    317  *	1  0  1	 0	50	<=
    318  *	1  1  0	 0	60	>=
    319  *	1  1  1	 1	78	all operators
    320  */
    321 #define AUDIT_BIT_MASK			0x08000000
    322 #define AUDIT_LESS_THAN			0x10000000
    323 #define AUDIT_GREATER_THAN		0x20000000
    324 #define AUDIT_NOT_EQUAL			0x30000000
    325 #define AUDIT_EQUAL			0x40000000
    326 #define AUDIT_BIT_TEST			(AUDIT_BIT_MASK|AUDIT_EQUAL)
    327 #define AUDIT_LESS_THAN_OR_EQUAL	(AUDIT_LESS_THAN|AUDIT_EQUAL)
    328 #define AUDIT_GREATER_THAN_OR_EQUAL	(AUDIT_GREATER_THAN|AUDIT_EQUAL)
    329 #define AUDIT_OPERATORS			(AUDIT_EQUAL|AUDIT_NOT_EQUAL|AUDIT_BIT_MASK)
    330 
    331 enum {
    332 	Audit_equal,
    333 	Audit_not_equal,
    334 	Audit_bitmask,
    335 	Audit_bittest,
    336 	Audit_lt,
    337 	Audit_gt,
    338 	Audit_le,
    339 	Audit_ge,
    340 	Audit_bad
    341 };
    342 
    343 /* Status symbols */
    344 						/* Mask values */
    345 #define AUDIT_STATUS_ENABLED			0x0001
    346 #define AUDIT_STATUS_FAILURE			0x0002
    347 #define AUDIT_STATUS_PID			0x0004
    348 #define AUDIT_STATUS_RATE_LIMIT		0x0008
    349 #define AUDIT_STATUS_BACKLOG_LIMIT		0x0010
    350 #define AUDIT_STATUS_BACKLOG_WAIT_TIME		0x0020
    351 #define AUDIT_STATUS_LOST			0x0040
    352 #define AUDIT_STATUS_BACKLOG_WAIT_TIME_ACTUAL	0x0080
    353 
    354 #define AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT	0x00000001
    355 #define AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME	0x00000002
    356 #define AUDIT_FEATURE_BITMAP_EXECUTABLE_PATH	0x00000004
    357 #define AUDIT_FEATURE_BITMAP_EXCLUDE_EXTEND	0x00000008
    358 #define AUDIT_FEATURE_BITMAP_SESSIONID_FILTER	0x00000010
    359 #define AUDIT_FEATURE_BITMAP_LOST_RESET		0x00000020
    360 #define AUDIT_FEATURE_BITMAP_FILTER_FS		0x00000040
    361 
    362 #define AUDIT_FEATURE_BITMAP_ALL (AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT | \
    363 				  AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME | \
    364 				  AUDIT_FEATURE_BITMAP_EXECUTABLE_PATH | \
    365 				  AUDIT_FEATURE_BITMAP_EXCLUDE_EXTEND | \
    366 				  AUDIT_FEATURE_BITMAP_SESSIONID_FILTER | \
    367 				  AUDIT_FEATURE_BITMAP_LOST_RESET | \
    368 				  AUDIT_FEATURE_BITMAP_FILTER_FS)
    369 
    370 /* deprecated: AUDIT_VERSION_* */
    371 #define AUDIT_VERSION_LATEST 		AUDIT_FEATURE_BITMAP_ALL
    372 #define AUDIT_VERSION_BACKLOG_LIMIT	AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT
    373 #define AUDIT_VERSION_BACKLOG_WAIT_TIME	AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME
    374 
    375 				/* Failure-to-log actions */
    376 #define AUDIT_FAIL_SILENT	0
    377 #define AUDIT_FAIL_PRINTK	1
    378 #define AUDIT_FAIL_PANIC	2
    379 
    380 /*
    381  * These bits disambiguate different calling conventions that share an
    382  * ELF machine type, bitness, and endianness
    383  */
    384 #define __AUDIT_ARCH_CONVENTION_MASK 0x30000000
    385 #define __AUDIT_ARCH_CONVENTION_MIPS64_N32 0x20000000
    386 
    387 /* distinguish syscall tables */
    388 #define __AUDIT_ARCH_64BIT 0x80000000
    389 #define __AUDIT_ARCH_LE	   0x40000000
    390 
    391 #define AUDIT_ARCH_AARCH64	(EM_AARCH64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
    392 #define AUDIT_ARCH_ALPHA	(EM_ALPHA|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
    393 #define AUDIT_ARCH_ARCOMPACT	(EM_ARCOMPACT|__AUDIT_ARCH_LE)
    394 #define AUDIT_ARCH_ARCOMPACTBE	(EM_ARCOMPACT)
    395 #define AUDIT_ARCH_ARCV2	(EM_ARCV2|__AUDIT_ARCH_LE)
    396 #define AUDIT_ARCH_ARCV2BE	(EM_ARCV2)
    397 #define AUDIT_ARCH_ARM		(EM_ARM|__AUDIT_ARCH_LE)
    398 #define AUDIT_ARCH_ARMEB	(EM_ARM)
    399 #define AUDIT_ARCH_C6X		(EM_TI_C6000|__AUDIT_ARCH_LE)
    400 #define AUDIT_ARCH_C6XBE	(EM_TI_C6000)
    401 #define AUDIT_ARCH_CRIS		(EM_CRIS|__AUDIT_ARCH_LE)
    402 #define AUDIT_ARCH_CSKY		(EM_CSKY|__AUDIT_ARCH_LE)
    403 #define AUDIT_ARCH_FRV		(EM_FRV)
    404 #define AUDIT_ARCH_H8300	(EM_H8_300)
    405 #define AUDIT_ARCH_HEXAGON	(EM_HEXAGON)
    406 #define AUDIT_ARCH_I386		(EM_386|__AUDIT_ARCH_LE)
    407 #define AUDIT_ARCH_IA64		(EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
    408 #define AUDIT_ARCH_M32R		(EM_M32R)
    409 #define AUDIT_ARCH_M68K		(EM_68K)
    410 #define AUDIT_ARCH_MICROBLAZE	(EM_MICROBLAZE)
    411 #define AUDIT_ARCH_MIPS		(EM_MIPS)
    412 #define AUDIT_ARCH_MIPSEL	(EM_MIPS|__AUDIT_ARCH_LE)
    413 #define AUDIT_ARCH_MIPS64	(EM_MIPS|__AUDIT_ARCH_64BIT)
    414 #define AUDIT_ARCH_MIPS64N32	(EM_MIPS|__AUDIT_ARCH_64BIT|\
    415 				 __AUDIT_ARCH_CONVENTION_MIPS64_N32)
    416 #define AUDIT_ARCH_MIPSEL64	(EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
    417 #define AUDIT_ARCH_MIPSEL64N32	(EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE|\
    418 				 __AUDIT_ARCH_CONVENTION_MIPS64_N32)
    419 #define AUDIT_ARCH_NDS32	(EM_NDS32|__AUDIT_ARCH_LE)
    420 #define AUDIT_ARCH_NDS32BE	(EM_NDS32)
    421 #define AUDIT_ARCH_NIOS2	(EM_ALTERA_NIOS2|__AUDIT_ARCH_LE)
    422 #define AUDIT_ARCH_OPENRISC	(EM_OPENRISC)
    423 #define AUDIT_ARCH_PARISC	(EM_PARISC)
    424 #define AUDIT_ARCH_PARISC64	(EM_PARISC|__AUDIT_ARCH_64BIT)
    425 #define AUDIT_ARCH_PPC		(EM_PPC)
    426 /* do not define AUDIT_ARCH_PPCLE since it is not supported by audit */
    427 #define AUDIT_ARCH_PPC64	(EM_PPC64|__AUDIT_ARCH_64BIT)
    428 #define AUDIT_ARCH_PPC64LE	(EM_PPC64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
    429 #define AUDIT_ARCH_RISCV32	(EM_RISCV|__AUDIT_ARCH_LE)
    430 #define AUDIT_ARCH_RISCV64	(EM_RISCV|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
    431 #define AUDIT_ARCH_S390		(EM_S390)
    432 #define AUDIT_ARCH_S390X	(EM_S390|__AUDIT_ARCH_64BIT)
    433 #define AUDIT_ARCH_SH		(EM_SH)
    434 #define AUDIT_ARCH_SHEL		(EM_SH|__AUDIT_ARCH_LE)
    435 #define AUDIT_ARCH_SH64		(EM_SH|__AUDIT_ARCH_64BIT)
    436 #define AUDIT_ARCH_SHEL64	(EM_SH|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
    437 #define AUDIT_ARCH_SPARC	(EM_SPARC)
    438 #define AUDIT_ARCH_SPARC64	(EM_SPARCV9|__AUDIT_ARCH_64BIT)
    439 #define AUDIT_ARCH_TILEGX	(EM_TILEGX|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
    440 #define AUDIT_ARCH_TILEGX32	(EM_TILEGX|__AUDIT_ARCH_LE)
    441 #define AUDIT_ARCH_TILEPRO	(EM_TILEPRO|__AUDIT_ARCH_LE)
    442 #define AUDIT_ARCH_UNICORE	(EM_UNICORE|__AUDIT_ARCH_LE)
    443 #define AUDIT_ARCH_X86_64	(EM_X86_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
    444 #define AUDIT_ARCH_XTENSA	(EM_XTENSA)
    445 #define AUDIT_ARCH_LOONGARCH32	(EM_LOONGARCH|__AUDIT_ARCH_LE)
    446 #define AUDIT_ARCH_LOONGARCH64	(EM_LOONGARCH|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
    447 
    448 #define AUDIT_PERM_EXEC		1
    449 #define AUDIT_PERM_WRITE	2
    450 #define AUDIT_PERM_READ		4
    451 #define AUDIT_PERM_ATTR		8
    452 
    453 /* MAX_AUDIT_MESSAGE_LENGTH is set in audit:lib/libaudit.h as:
    454  * 8970 // PATH_MAX*2+CONTEXT_SIZE*2+11+256+1
    455  * max header+body+tailer: 44 + 29 + 32 + 262 + 7 + pad
    456  */
    457 #define AUDIT_MESSAGE_TEXT_MAX	8560
    458 
    459 /* Multicast Netlink socket groups (default up to 32) */
    460 enum audit_nlgrps {
    461 	AUDIT_NLGRP_NONE,	/* Group 0 not used */
    462 	AUDIT_NLGRP_READLOG,	/* "best effort" read only socket */
    463 	__AUDIT_NLGRP_MAX
    464 };
    465 #define AUDIT_NLGRP_MAX                (__AUDIT_NLGRP_MAX - 1)
    466 
    467 struct audit_status {
    468 	__u32		mask;		/* Bit mask for valid entries */
    469 	__u32		enabled;	/* 1 = enabled, 0 = disabled */
    470 	__u32		failure;	/* Failure-to-log action */
    471 	__u32		pid;		/* pid of auditd process */
    472 	__u32		rate_limit;	/* messages rate limit (per second) */
    473 	__u32		backlog_limit;	/* waiting messages limit */
    474 	__u32		lost;		/* messages lost */
    475 	__u32		backlog;	/* messages waiting in queue */
    476 	union {
    477 		__u32	version;	/* deprecated: audit api version num */
    478 		__u32	feature_bitmap;	/* bitmap of kernel audit features */
    479 	};
    480 	__u32		backlog_wait_time;/* message queue wait timeout */
    481 	__u32           backlog_wait_time_actual;/* time spent waiting while
    482 						  * message limit exceeded
    483 						  */
    484 };
    485 
    486 struct audit_features {
    487 #define AUDIT_FEATURE_VERSION	1
    488 	__u32	vers;
    489 	__u32	mask;		/* which bits we are dealing with */
    490 	__u32	features;	/* which feature to enable/disable */
    491 	__u32	lock;		/* which features to lock */
    492 };
    493 
    494 #define AUDIT_FEATURE_ONLY_UNSET_LOGINUID	0
    495 #define AUDIT_FEATURE_LOGINUID_IMMUTABLE	1
    496 #define AUDIT_LAST_FEATURE			AUDIT_FEATURE_LOGINUID_IMMUTABLE
    497 
    498 #define audit_feature_valid(x)		((x) >= 0 && (x) <= AUDIT_LAST_FEATURE)
    499 #define AUDIT_FEATURE_TO_MASK(x)	(1 << ((x) & 31)) /* mask for __u32 */
    500 
    501 struct audit_tty_status {
    502 	__u32		enabled;	/* 1 = enabled, 0 = disabled */
    503 	__u32		log_passwd;	/* 1 = enabled, 0 = disabled */
    504 };
    505 
    506 #define AUDIT_UID_UNSET (unsigned int)-1
    507 #define AUDIT_SID_UNSET ((unsigned int)-1)
    508 
    509 /* audit_rule_data supports filter rules with both integer and string
    510  * fields.  It corresponds with AUDIT_ADD_RULE, AUDIT_DEL_RULE and
    511  * AUDIT_LIST_RULES requests.
    512  */
    513 struct audit_rule_data {
    514 	__u32		flags;	/* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */
    515 	__u32		action;	/* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */
    516 	__u32		field_count;
    517 	__u32		mask[AUDIT_BITMASK_SIZE]; /* syscall(s) affected */
    518 	__u32		fields[AUDIT_MAX_FIELDS];
    519 	__u32		values[AUDIT_MAX_FIELDS];
    520 	__u32		fieldflags[AUDIT_MAX_FIELDS];
    521 	__u32		buflen;	/* total length of string fields */
    522 	char		buf[];	/* string fields buffer */
    523 };
    524 
    525 #endif /* _LINUX_AUDIT_H_ */