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Diffstat (limited to 'include/uapi/linux/audit.h')
| -rw-r--r-- | include/uapi/linux/audit.h | 404 |
1 files changed, 404 insertions, 0 deletions
diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h new file mode 100644 index 00000000000..76352ac45f2 --- /dev/null +++ b/include/uapi/linux/audit.h @@ -0,0 +1,404 @@ +/* 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 _UAPI_LINUX_AUDIT_H_ +#define _UAPI_LINUX_AUDIT_H_ + +#include <linux/types.h> +#include <linux/elf-em.h> +#include <linux/ptrace.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_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_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_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_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_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_TYPE 0x05 /* Apply rule at audit_log_start */ + +#define AUDIT_NR_FILTERS 6 + +#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) (1 << ((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 + + /* 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_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 + /* Failure-to-log actions */ +#define AUDIT_FAIL_SILENT 0 +#define AUDIT_FAIL_PRINTK 1 +#define AUDIT_FAIL_PANIC 2 + +/* distinguish syscall tables */ +#define __AUDIT_ARCH_64BIT 0x80000000 +#define __AUDIT_ARCH_LE 0x40000000 +#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_H8300 (EM_H8_300) +#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_MIPS (EM_MIPS) +#define AUDIT_ARCH_MIPSEL (EM_MIPS|__AUDIT_ARCH_LE) +#define AUDIT_ARCH_MIPS64 (EM_MIPS|__AUDIT_ARCH_64BIT) +#define AUDIT_ARCH_MIPSEL64 (EM_MIPS|__AUDIT_ARCH_64BIT|__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) +#define AUDIT_ARCH_PPC64 (EM_PPC64|__AUDIT_ARCH_64BIT) +#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_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 + +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 */ +}; + +struct audit_tty_status { + __u32 enabled; /* 1 = enabled, 0 = disabled */ +}; + +/* 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[0]; /* string fields buffer */ +}; + +/* audit_rule is supported to maintain backward compatibility with + * userspace. It supports integer fields only and corresponds to + * AUDIT_ADD, AUDIT_DEL and AUDIT_LIST requests. + */ +struct audit_rule { /* for AUDIT_LIST, AUDIT_ADD, and AUDIT_DEL */ + __u32 flags; /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */ + __u32 action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */ + __u32 field_count; + __u32 mask[AUDIT_BITMASK_SIZE]; + __u32 fields[AUDIT_MAX_FIELDS]; + __u32 values[AUDIT_MAX_FIELDS]; +}; + +#endif /* _UAPI_LINUX_AUDIT_H_ */ |