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Edit File : audit.h \| Size : 19.92 KB
/* 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 SE Linux use * 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_OPENAT2 1337 / Record showing openat2 how args / #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_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_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_NR_FILTERS 7 #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_ARM (EM_ARM\|__AUDIT_ARCH_LE) #define AUDIT_ARCH_ARMEB (EM_ARM) #define AUDIT_ARCH_CRIS (EM_CRIS\|__AUDIT_ARCH_LE) #define AUDIT_ARCH_FRV (EM_FRV) #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_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_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_X86_64 (EM_X86_64\|__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_MAX2+CONTEXT_SIZE2+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_ */ Back

Edit File : audit.h | Size : 19.92 KB

/* 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 SE Linux use
 * 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_OPENAT2		1337	/* Record showing openat2 how args */

#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_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_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_NR_FILTERS	7

#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_ARM		(EM_ARM|__AUDIT_ARCH_LE)
#define AUDIT_ARCH_ARMEB	(EM_ARM)
#define AUDIT_ARCH_CRIS		(EM_CRIS|__AUDIT_ARCH_LE)
#define AUDIT_ARCH_FRV		(EM_FRV)
#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_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_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_X86_64	(EM_X86_64|__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_ */

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