path: root/include/arch/x86_64/linux/audit.h

/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/* audit.h -- Auditing support
 *
 * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina.
 * All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Written by Rickard E. (Rik) Faith <faith@redhat.com>
 *
 */

#ifndef _LINUX_AUDIT_H_
#define _LINUX_AUDIT_H_

#include <linux/types.h>
#include <linux/elf-em.h>

/* The netlink messages for the audit system is divided into blocks:
 * 1000 - 1099 are for commanding the audit system
 * 1100 - 1199 user space trusted application messages
 * 1200 - 1299 messages internal to the audit daemon
 * 1300 - 1399 audit event messages
 * 1400 - 1499 access control messages
 * 1500 - 1599 kernel LSPP events
 * 1600 - 1699 kernel crypto events
 * 1700 - 1799 kernel anomaly records
 * 1800 - 1899 kernel integrity events
 * 1900 - 1999 future kernel use
 * 2000 is for otherwise unclassified kernel audit messages (legacy)
 * 2001 - 2099 unused (kernel)
 * 2100 - 2199 user space anomaly records
 * 2200 - 2299 user space actions taken in response to anomalies
 * 2300 - 2399 user space generated LSPP events
 * 2400 - 2499 user space crypto events
 * 2500 - 2999 future user space (maybe integrity labels and related events)
 *
 * Messages from 1000-1199 are bi-directional. 1200-1299 & 2100 - 2999 are
 * exclusively user space. 1300-2099 is kernel --> user space
 * communication.
 */
#define AUDIT_GET	  1000 /* Get status */
#define AUDIT_SET	  1001 /* Set status (enable/disable/auditd) */
#define AUDIT_LIST	  1002 /* List syscall rules -- deprecated */
#define AUDIT_ADD	  1003 /* Add syscall rule -- deprecated */
#define AUDIT_DEL	  1004 /* Delete syscall rule -- deprecated */
#define AUDIT_USER	  1005 /* Message from userspace -- deprecated */
#define AUDIT_LOGIN	  1006 /* Define the login id and information */
#define AUDIT_WATCH_INS	  1007 /* Insert file/dir watch entry */
#define AUDIT_WATCH_REM	  1008 /* Remove file/dir watch entry */
#define AUDIT_WATCH_LIST  1009 /* List all file/dir watches */
#define AUDIT_SIGNAL_INFO 1010 /* Get info about sender of signal to auditd */
#define AUDIT_ADD_RULE	  1011 /* Add syscall filtering rule */
#define AUDIT_DEL_RULE	  1012 /* Delete syscall filtering rule */
#define AUDIT_LIST_RULES  1013 /* List syscall filtering rules */
#define AUDIT_TRIM	  1014 /* Trim junk from watched tree */
#define AUDIT_MAKE_EQUIV  1015 /* Append to watched tree */
#define AUDIT_TTY_GET	  1016 /* Get TTY auditing status */
#define AUDIT_TTY_SET	  1017 /* Set TTY auditing status */
#define AUDIT_SET_FEATURE 1018 /* Turn an audit feature on or off */
#define AUDIT_GET_FEATURE 1019 /* Get which features are enabled */

#define AUDIT_FIRST_USER_MSG \
	1100 /* Userspace messages mostly uninteresting to kernel */
#define AUDIT_USER_AVC	      1107 /* We filter this differently */
#define AUDIT_USER_TTY	      1124 /* Non-ICANON TTY input meaning */
#define AUDIT_LAST_USER_MSG   1199
#define AUDIT_FIRST_USER_MSG2 2100 /* More user space messages */
#define AUDIT_LAST_USER_MSG2  2999

#define AUDIT_DAEMON_START  1200 /* Daemon startup record */
#define AUDIT_DAEMON_END    1201 /* Daemon normal stop record */
#define AUDIT_DAEMON_ABORT  1202 /* Daemon error stop record */
#define AUDIT_DAEMON_CONFIG 1203 /* Daemon config change */

#define AUDIT_SYSCALL 1300 /* Syscall event */
/* #define AUDIT_FS_WATCH	1301	 * Deprecated */
#define AUDIT_PATH	     1302 /* Filename path information */
#define AUDIT_IPC	     1303 /* IPC record */
#define AUDIT_SOCKETCALL     1304 /* sys_socketcall arguments */
#define AUDIT_CONFIG_CHANGE  1305 /* Audit system configuration change */
#define AUDIT_SOCKADDR	     1306 /* sockaddr copied as syscall arg */
#define AUDIT_CWD	     1307 /* Current working directory */
#define AUDIT_EXECVE	     1309 /* execve arguments */
#define AUDIT_IPC_SET_PERM   1311 /* IPC new permissions record type */
#define AUDIT_MQ_OPEN	     1312 /* POSIX MQ open record type */
#define AUDIT_MQ_SENDRECV    1313 /* POSIX MQ send/receive record type */
#define AUDIT_MQ_NOTIFY	     1314 /* POSIX MQ notify record type */
#define AUDIT_MQ_GETSETATTR  1315 /* POSIX MQ get/set attribute record type */
#define AUDIT_KERNEL_OTHER   1316 /* For use by 3rd party modules */
#define AUDIT_FD_PAIR	     1317 /* audit record for pipe/socketpair */
#define AUDIT_OBJ_PID	     1318 /* ptrace target */
#define AUDIT_TTY	     1319 /* Input on an administrative TTY */
#define AUDIT_EOE	     1320 /* End of multi-record event */
#define AUDIT_BPRM_FCAPS     1321 /* Information about fcaps increasing perms */
#define AUDIT_CAPSET	     1322 /* Record showing argument to sys_capset */
#define AUDIT_MMAP	     1323 /* Record showing descriptor and flags in mmap */
#define AUDIT_NETFILTER_PKT  1324 /* Packets traversing netfilter chains */
#define AUDIT_NETFILTER_CFG  1325 /* Netfilter chain modifications */
#define AUDIT_SECCOMP	     1326 /* Secure Computing event */
#define AUDIT_PROCTITLE	     1327 /* Proctitle emit event */
#define AUDIT_FEATURE_CHANGE 1328 /* audit log listing feature changes */
#define AUDIT_REPLACE	     1329 /* Replace auditd if this packet unanswerd */
#define AUDIT_KERN_MODULE    1330 /* Kernel Module events */
#define AUDIT_FANOTIFY	     1331 /* Fanotify access decision */
#define AUDIT_TIME_INJOFFSET 1332 /* Timekeeping offset injected */
#define AUDIT_TIME_ADJNTPVAL 1333 /* NTP value adjustment */
#define AUDIT_BPF	     1334 /* BPF subsystem */
#define AUDIT_EVENT_LISTENER 1335 /* Task joined multicast read socket */
#define AUDIT_URINGOP	     1336 /* io_uring operation */
#define AUDIT_OPENAT2	     1337 /* Record showing openat2 how args */
#define AUDIT_DM_CTRL	     1338 /* Device Mapper target control */
#define AUDIT_DM_EVENT	     1339 /* Device Mapper events */

#define AUDIT_AVC		1400 /* SE Linux avc denial or grant */
#define AUDIT_SELINUX_ERR	1401 /* Internal SE Linux Errors */
#define AUDIT_AVC_PATH		1402 /* dentry, vfsmount pair from avc */
#define AUDIT_MAC_POLICY_LOAD	1403 /* Policy file load */
#define AUDIT_MAC_STATUS	1404 /* Changed enforcing,permissive,off */
#define AUDIT_MAC_CONFIG_CHANGE 1405 /* Changes to booleans */
#define AUDIT_MAC_UNLBL_ALLOW	1406 /* NetLabel: allow unlabeled traffic */
#define AUDIT_MAC_CIPSOV4_ADD	1407 /* NetLabel: add CIPSOv4 DOI entry */
#define AUDIT_MAC_CIPSOV4_DEL	1408 /* NetLabel: del CIPSOv4 DOI entry */
#define AUDIT_MAC_MAP_ADD	1409 /* NetLabel: add LSM domain mapping */
#define AUDIT_MAC_MAP_DEL	1410 /* NetLabel: del LSM domain mapping */
#define AUDIT_MAC_IPSEC_ADDSA	1411 /* Not used */
#define AUDIT_MAC_IPSEC_DELSA	1412 /* Not used  */
#define AUDIT_MAC_IPSEC_ADDSPD	1413 /* Not used */
#define AUDIT_MAC_IPSEC_DELSPD	1414 /* Not used */
#define AUDIT_MAC_IPSEC_EVENT	1415 /* Audit an IPSec event */
#define AUDIT_MAC_UNLBL_STCADD	1416 /* NetLabel: add a static label */
#define AUDIT_MAC_UNLBL_STCDEL	1417 /* NetLabel: del a static label */
#define AUDIT_MAC_CALIPSO_ADD	1418 /* NetLabel: add CALIPSO DOI entry */
#define AUDIT_MAC_CALIPSO_DEL	1419 /* NetLabel: del CALIPSO DOI entry */
#define AUDIT_IPE_ACCESS	1420 /* IPE denial or grant */
#define AUDIT_IPE_CONFIG_CHANGE 1421 /* IPE config change */
#define AUDIT_IPE_POLICY_LOAD	1422 /* IPE policy load */
#define AUDIT_LANDLOCK_ACCESS	1423 /* Landlock denial */
#define AUDIT_LANDLOCK_DOMAIN	1424 /* Landlock domain status */

#define AUDIT_FIRST_KERN_ANOM_MSG   1700
#define AUDIT_LAST_KERN_ANOM_MSG    1799
#define AUDIT_ANOM_PROMISCUOUS	    1700 /* Device changed promiscuous mode */
#define AUDIT_ANOM_ABEND	    1701 /* Process ended abnormally */
#define AUDIT_ANOM_LINK		    1702 /* Suspicious use of file links */
#define AUDIT_ANOM_CREAT	    1703 /* Suspicious file creation */
#define AUDIT_INTEGRITY_DATA	    1800 /* Data integrity verification */
#define AUDIT_INTEGRITY_METADATA    1801 /* Metadata integrity verification */
#define AUDIT_INTEGRITY_STATUS	    1802 /* Integrity enable status */
#define AUDIT_INTEGRITY_HASH	    1803 /* Integrity HASH type */
#define AUDIT_INTEGRITY_PCR	    1804 /* PCR invalidation msgs */
#define AUDIT_INTEGRITY_RULE	    1805 /* policy rule */
#define AUDIT_INTEGRITY_EVM_XATTR   1806 /* New EVM-covered xattr */
#define AUDIT_INTEGRITY_POLICY_RULE 1807 /* IMA policy rules */
#define AUDIT_INTEGRITY_USERSPACE   1808 /* Userspace enforced data integrity */

#define AUDIT_KERNEL 2000 /* Asynchronous audit record. NOT A REQUEST. */

/* Rule flags */
#define AUDIT_FILTER_USER    0x00 /* Apply rule to user-generated messages */
#define AUDIT_FILTER_TASK    0x01 /* Apply rule at task creation (not syscall) */
#define AUDIT_FILTER_ENTRY   0x02 /* Apply rule at syscall entry */
#define AUDIT_FILTER_WATCH   0x03 /* Apply rule to file system watches */
#define AUDIT_FILTER_EXIT    0x04 /* Apply rule at syscall exit */
#define AUDIT_FILTER_EXCLUDE 0x05 /* Apply rule before record creation */
#define AUDIT_FILTER_TYPE    AUDIT_FILTER_EXCLUDE /* obsolete misleading naming \
						   */
#define AUDIT_FILTER_FS		0x06 /* Apply rule at __audit_inode_child */
#define AUDIT_FILTER_URING_EXIT 0x07 /* Apply rule at io_uring op exit */

#define AUDIT_NR_FILTERS 8

#define AUDIT_FILTER_PREPEND 0x10 /* Prepend to front of list */

/* Rule actions */
#define AUDIT_NEVER    0 /* Do not build context if rule matches */
#define AUDIT_POSSIBLE 1 /* Build context if rule matches  */
#define AUDIT_ALWAYS   2 /* Generate audit record if rule matches */

/* Rule structure sizes -- if these change, different AUDIT_ADD and
 * AUDIT_LIST commands must be implemented. */
#define AUDIT_MAX_FIELDS   64
#define AUDIT_MAX_KEY_LEN  256
#define AUDIT_BITMASK_SIZE 64
#define AUDIT_WORD(nr)	   ((__u32)((nr) / 32))
#define AUDIT_BIT(nr)	   (1U << ((nr) - AUDIT_WORD(nr) * 32))

#define AUDIT_SYSCALL_CLASSES	 16
#define AUDIT_CLASS_DIR_WRITE	 0
#define AUDIT_CLASS_DIR_WRITE_32 1
#define AUDIT_CLASS_CHATTR	 2
#define AUDIT_CLASS_CHATTR_32	 3
#define AUDIT_CLASS_READ	 4
#define AUDIT_CLASS_READ_32	 5
#define AUDIT_CLASS_WRITE	 6
#define AUDIT_CLASS_WRITE_32	 7
#define AUDIT_CLASS_SIGNAL	 8
#define AUDIT_CLASS_SIGNAL_32	 9

/* This bitmask is used to validate user input.  It represents all bits that
 * are currently used in an audit field constant understood by the kernel.
 * If you are adding a new #define AUDIT_<whatever>, please ensure that
 * AUDIT_UNUSED_BITS is updated if need be. */
#define AUDIT_UNUSED_BITS 0x07FFFC00

/* AUDIT_FIELD_COMPARE rule list */
#define AUDIT_COMPARE_UID_TO_OBJ_UID   1
#define AUDIT_COMPARE_GID_TO_OBJ_GID   2
#define AUDIT_COMPARE_EUID_TO_OBJ_UID  3
#define AUDIT_COMPARE_EGID_TO_OBJ_GID  4
#define AUDIT_COMPARE_AUID_TO_OBJ_UID  5
#define AUDIT_COMPARE_SUID_TO_OBJ_UID  6
#define AUDIT_COMPARE_SGID_TO_OBJ_GID  7
#define AUDIT_COMPARE_FSUID_TO_OBJ_UID 8
#define AUDIT_COMPARE_FSGID_TO_OBJ_GID 9

#define AUDIT_COMPARE_UID_TO_AUID  10
#define AUDIT_COMPARE_UID_TO_EUID  11
#define AUDIT_COMPARE_UID_TO_FSUID 12
#define AUDIT_COMPARE_UID_TO_SUID  13

#define AUDIT_COMPARE_AUID_TO_FSUID 14
#define AUDIT_COMPARE_AUID_TO_SUID  15
#define AUDIT_COMPARE_AUID_TO_EUID  16

#define AUDIT_COMPARE_EUID_TO_SUID  17
#define AUDIT_COMPARE_EUID_TO_FSUID 18

#define AUDIT_COMPARE_SUID_TO_FSUID 19

#define AUDIT_COMPARE_GID_TO_EGID  20
#define AUDIT_COMPARE_GID_TO_FSGID 21
#define AUDIT_COMPARE_GID_TO_SGID  22

#define AUDIT_COMPARE_EGID_TO_FSGID 23
#define AUDIT_COMPARE_EGID_TO_SGID  24
#define AUDIT_COMPARE_SGID_TO_FSGID 25

#define AUDIT_MAX_FIELD_COMPARE AUDIT_COMPARE_SGID_TO_FSGID

/* Rule fields */
/* These are useful when checking the
 * task structure at task creation time
 * (AUDIT_PER_TASK).  */
#define AUDIT_PID	   0
#define AUDIT_UID	   1
#define AUDIT_EUID	   2
#define AUDIT_SUID	   3
#define AUDIT_FSUID	   4
#define AUDIT_GID	   5
#define AUDIT_EGID	   6
#define AUDIT_SGID	   7
#define AUDIT_FSGID	   8
#define AUDIT_LOGINUID	   9
#define AUDIT_PERS	   10
#define AUDIT_ARCH	   11
#define AUDIT_MSGTYPE	   12
#define AUDIT_SUBJ_USER	   13 /* security label user */
#define AUDIT_SUBJ_ROLE	   14 /* security label role */
#define AUDIT_SUBJ_TYPE	   15 /* security label type */
#define AUDIT_SUBJ_SEN	   16 /* security label sensitivity label */
#define AUDIT_SUBJ_CLR	   17 /* security label clearance label */
#define AUDIT_PPID	   18
#define AUDIT_OBJ_USER	   19
#define AUDIT_OBJ_ROLE	   20
#define AUDIT_OBJ_TYPE	   21
#define AUDIT_OBJ_LEV_LOW  22
#define AUDIT_OBJ_LEV_HIGH 23
#define AUDIT_LOGINUID_SET 24
#define AUDIT_SESSIONID	   25 /* Session ID */
#define AUDIT_FSTYPE	   26 /* FileSystem Type */

/* These are ONLY useful when checking
 * at syscall exit time (AUDIT_AT_EXIT). */
#define AUDIT_DEVMAJOR	    100
#define AUDIT_DEVMINOR	    101
#define AUDIT_INODE	    102
#define AUDIT_EXIT	    103
#define AUDIT_SUCCESS	    104 /* exit >= 0; value ignored */
#define AUDIT_WATCH	    105
#define AUDIT_PERM	    106
#define AUDIT_DIR	    107
#define AUDIT_FILETYPE	    108
#define AUDIT_OBJ_UID	    109
#define AUDIT_OBJ_GID	    110
#define AUDIT_FIELD_COMPARE 111
#define AUDIT_EXE	    112
#define AUDIT_SADDR_FAM	    113

#define AUDIT_ARG0 200
#define AUDIT_ARG1 (AUDIT_ARG0 + 1)
#define AUDIT_ARG2 (AUDIT_ARG0 + 2)
#define AUDIT_ARG3 (AUDIT_ARG0 + 3)

#define AUDIT_FILTERKEY 210

#define AUDIT_NEGATE 0x80000000

/* These are the supported operators.
 *	4  2  1  8
 *	=  >  <  ?
 *	----------
 *	0  0  0	 0	00	nonsense
 *	0  0  0	 1	08	&  bit mask
 *	0  0  1	 0	10	<
 *	0  1  0	 0	20	>
 *	0  1  1	 0	30	!=
 *	1  0  0	 0	40	=
 *	1  0  0	 1	48	&=  bit test
 *	1  0  1	 0	50	<=
 *	1  1  0	 0	60	>=
 *	1  1  1	 1	78	all operators
 */
#define AUDIT_BIT_MASK		    0x08000000
#define AUDIT_LESS_THAN		    0x10000000
#define AUDIT_GREATER_THAN	    0x20000000
#define AUDIT_NOT_EQUAL		    0x30000000
#define AUDIT_EQUAL		    0x40000000
#define AUDIT_BIT_TEST		    (AUDIT_BIT_MASK | AUDIT_EQUAL)
#define AUDIT_LESS_THAN_OR_EQUAL    (AUDIT_LESS_THAN | AUDIT_EQUAL)
#define AUDIT_GREATER_THAN_OR_EQUAL (AUDIT_GREATER_THAN | AUDIT_EQUAL)
#define AUDIT_OPERATORS		    (AUDIT_EQUAL | AUDIT_NOT_EQUAL | AUDIT_BIT_MASK)

enum {
	Audit_equal,
	Audit_not_equal,
	Audit_bitmask,
	Audit_bittest,
	Audit_lt,
	Audit_gt,
	Audit_le,
	Audit_ge,
	Audit_bad
};

/* Status symbols */
/* Mask values */
#define AUDIT_STATUS_ENABLED		      0x0001
#define AUDIT_STATUS_FAILURE		      0x0002
#define AUDIT_STATUS_PID		      0x0004
#define AUDIT_STATUS_RATE_LIMIT		      0x0008
#define AUDIT_STATUS_BACKLOG_LIMIT	      0x0010
#define AUDIT_STATUS_BACKLOG_WAIT_TIME	      0x0020
#define AUDIT_STATUS_LOST		      0x0040
#define AUDIT_STATUS_BACKLOG_WAIT_TIME_ACTUAL 0x0080

#define AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT     0x00000001
#define AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME 0x00000002
#define AUDIT_FEATURE_BITMAP_EXECUTABLE_PATH   0x00000004
#define AUDIT_FEATURE_BITMAP_EXCLUDE_EXTEND    0x00000008
#define AUDIT_FEATURE_BITMAP_SESSIONID_FILTER  0x00000010
#define AUDIT_FEATURE_BITMAP_LOST_RESET	       0x00000020
#define AUDIT_FEATURE_BITMAP_FILTER_FS	       0x00000040

#define AUDIT_FEATURE_BITMAP_ALL                  \
	(AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT |     \
	 AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME | \
	 AUDIT_FEATURE_BITMAP_EXECUTABLE_PATH |   \
	 AUDIT_FEATURE_BITMAP_EXCLUDE_EXTEND |    \
	 AUDIT_FEATURE_BITMAP_SESSIONID_FILTER |  \
	 AUDIT_FEATURE_BITMAP_LOST_RESET | AUDIT_FEATURE_BITMAP_FILTER_FS)

/* deprecated: AUDIT_VERSION_* */
#define AUDIT_VERSION_LATEST		AUDIT_FEATURE_BITMAP_ALL
#define AUDIT_VERSION_BACKLOG_LIMIT	AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT
#define AUDIT_VERSION_BACKLOG_WAIT_TIME AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME

/* Failure-to-log actions */
#define AUDIT_FAIL_SILENT 0
#define AUDIT_FAIL_PRINTK 1
#define AUDIT_FAIL_PANIC  2

/*
 * These bits disambiguate different calling conventions that share an
 * ELF machine type, bitness, and endianness
 */
#define __AUDIT_ARCH_CONVENTION_MASK	   0x30000000
#define __AUDIT_ARCH_CONVENTION_MIPS64_N32 0x20000000

/* distinguish syscall tables */
#define __AUDIT_ARCH_64BIT 0x80000000
#define __AUDIT_ARCH_LE	   0x40000000

#define AUDIT_ARCH_AARCH64     (EM_AARCH64 | __AUDIT_ARCH_64BIT | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_ALPHA       (EM_ALPHA | __AUDIT_ARCH_64BIT | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_ARCOMPACT   (EM_ARCOMPACT | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_ARCOMPACTBE (EM_ARCOMPACT)
#define AUDIT_ARCH_ARCV2       (EM_ARCV2 | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_ARCV2BE     (EM_ARCV2)
#define AUDIT_ARCH_ARM	       (EM_ARM | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_ARMEB       (EM_ARM)
#define AUDIT_ARCH_C6X	       (EM_TI_C6000 | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_C6XBE       (EM_TI_C6000)
#define AUDIT_ARCH_CRIS	       (EM_CRIS | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_CSKY	       (EM_CSKY | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_FRV	       (EM_FRV)
#define AUDIT_ARCH_H8300       (EM_H8_300)
#define AUDIT_ARCH_HEXAGON     (EM_HEXAGON)
#define AUDIT_ARCH_I386	       (EM_386 | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_IA64	       (EM_IA_64 | __AUDIT_ARCH_64BIT | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_M32R	       (EM_M32R)
#define AUDIT_ARCH_M68K	       (EM_68K)
#define AUDIT_ARCH_MICROBLAZE  (EM_MICROBLAZE)
#define AUDIT_ARCH_MIPS	       (EM_MIPS)
#define AUDIT_ARCH_MIPSEL      (EM_MIPS | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_MIPS64      (EM_MIPS | __AUDIT_ARCH_64BIT)
#define AUDIT_ARCH_MIPS64N32 \
	(EM_MIPS | __AUDIT_ARCH_64BIT | __AUDIT_ARCH_CONVENTION_MIPS64_N32)
#define AUDIT_ARCH_MIPSEL64 (EM_MIPS | __AUDIT_ARCH_64BIT | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_MIPSEL64N32                            \
	(EM_MIPS | __AUDIT_ARCH_64BIT | __AUDIT_ARCH_LE | \
	 __AUDIT_ARCH_CONVENTION_MIPS64_N32)
#define AUDIT_ARCH_NDS32    (EM_NDS32 | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_NDS32BE  (EM_NDS32)
#define AUDIT_ARCH_NIOS2    (EM_ALTERA_NIOS2 | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_OPENRISC (EM_OPENRISC)
#define AUDIT_ARCH_PARISC   (EM_PARISC)
#define AUDIT_ARCH_PARISC64 (EM_PARISC | __AUDIT_ARCH_64BIT)
#define AUDIT_ARCH_PPC	    (EM_PPC)
/* do not define AUDIT_ARCH_PPCLE since it is not supported by audit */
#define AUDIT_ARCH_PPC64       (EM_PPC64 | __AUDIT_ARCH_64BIT)
#define AUDIT_ARCH_PPC64LE     (EM_PPC64 | __AUDIT_ARCH_64BIT | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_RISCV32     (EM_RISCV | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_RISCV64     (EM_RISCV | __AUDIT_ARCH_64BIT | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_S390	       (EM_S390)
#define AUDIT_ARCH_S390X       (EM_S390 | __AUDIT_ARCH_64BIT)
#define AUDIT_ARCH_SH	       (EM_SH)
#define AUDIT_ARCH_SHEL	       (EM_SH | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_SH64	       (EM_SH | __AUDIT_ARCH_64BIT)
#define AUDIT_ARCH_SHEL64      (EM_SH | __AUDIT_ARCH_64BIT | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_SPARC       (EM_SPARC)
#define AUDIT_ARCH_SPARC64     (EM_SPARCV9 | __AUDIT_ARCH_64BIT)
#define AUDIT_ARCH_TILEGX      (EM_TILEGX | __AUDIT_ARCH_64BIT | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_TILEGX32    (EM_TILEGX | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_TILEPRO     (EM_TILEPRO | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_UNICORE     (EM_UNICORE | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_X86_64      (EM_X86_64 | __AUDIT_ARCH_64BIT | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_XTENSA      (EM_XTENSA)
#define AUDIT_ARCH_LOONGARCH32 (EM_LOONGARCH | __AUDIT_ARCH_LE)
#define AUDIT_ARCH_LOONGARCH64 \
	(EM_LOONGARCH | __AUDIT_ARCH_64BIT | __AUDIT_ARCH_LE)

#define AUDIT_PERM_EXEC	 1
#define AUDIT_PERM_WRITE 2
#define AUDIT_PERM_READ	 4
#define AUDIT_PERM_ATTR	 8

/* MAX_AUDIT_MESSAGE_LENGTH is set in audit:lib/libaudit.h as:
 * 8970 // PATH_MAX*2+CONTEXT_SIZE*2+11+256+1
 * max header+body+tailer: 44 + 29 + 32 + 262 + 7 + pad
 */
#define AUDIT_MESSAGE_TEXT_MAX 8560

/* Multicast Netlink socket groups (default up to 32) */
enum audit_nlgrps {
	AUDIT_NLGRP_NONE,    /* Group 0 not used */
	AUDIT_NLGRP_READLOG, /* "best effort" read only socket */
	__AUDIT_NLGRP_MAX
};
#define AUDIT_NLGRP_MAX (__AUDIT_NLGRP_MAX - 1)

struct audit_status {
	__u32 mask;	     /* Bit mask for valid entries */
	__u32 enabled;	     /* 1 = enabled, 0 = disabled */
	__u32 failure;	     /* Failure-to-log action */
	__u32 pid;	     /* pid of auditd process */
	__u32 rate_limit;    /* messages rate limit (per second) */
	__u32 backlog_limit; /* waiting messages limit */
	__u32 lost;	     /* messages lost */
	__u32 backlog;	     /* messages waiting in queue */
	union {
		__u32 version;	      /* deprecated: audit api version num */
		__u32 feature_bitmap; /* bitmap of kernel audit features */
	};
	__u32 backlog_wait_time;	/* message queue wait timeout */
	__u32 backlog_wait_time_actual; /* time spent waiting while
					 * message limit exceeded
					 */
};

struct audit_features {
#define AUDIT_FEATURE_VERSION 1
	__u32 vers;
	__u32 mask;	/* which bits we are dealing with */
	__u32 features; /* which feature to enable/disable */
	__u32 lock;	/* which features to lock */
};

#define AUDIT_FEATURE_ONLY_UNSET_LOGINUID 0
#define AUDIT_FEATURE_LOGINUID_IMMUTABLE  1
#define AUDIT_LAST_FEATURE		  AUDIT_FEATURE_LOGINUID_IMMUTABLE

#define audit_feature_valid(x)	 ((x) >= 0 && (x) <= AUDIT_LAST_FEATURE)
#define AUDIT_FEATURE_TO_MASK(x) (1 << ((x) & 31)) /* mask for __u32 */

struct audit_tty_status {
	__u32 enabled;	  /* 1 = enabled, 0 = disabled */
	__u32 log_passwd; /* 1 = enabled, 0 = disabled */
};

#define AUDIT_UID_UNSET (unsigned int)-1
#define AUDIT_SID_UNSET ((unsigned int)-1)

/* audit_rule_data supports filter rules with both integer and string
 * fields.  It corresponds with AUDIT_ADD_RULE, AUDIT_DEL_RULE and
 * AUDIT_LIST_RULES requests.
 */
struct audit_rule_data {
	__u32 flags;  /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */
	__u32 action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */
	__u32 field_count;
	__u32 mask[AUDIT_BITMASK_SIZE]; /* syscall(s) affected */
	__u32 fields[AUDIT_MAX_FIELDS];
	__u32 values[AUDIT_MAX_FIELDS];
	__u32 fieldflags[AUDIT_MAX_FIELDS];
	__u32 buflen; /* total length of string fields */
	char buf[];   /* string fields buffer */
};

#endif /* _LINUX_AUDIT_H_ */