1 /* audit.h -- Auditing support 2 * 3 * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina. 4 * All Rights Reserved. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 * 20 * Written by Rickard E. (Rik) Faith <faith@redhat.com> 21 * 22 */ 23 24 #ifndef _UAPI_LINUX_AUDIT_H_ 25 #define _UAPI_LINUX_AUDIT_H_ 26 27 #include <linux/types.h> 28 #include <linux/elf-em.h> 29 30 /* The netlink messages for the audit system is divided into blocks: 31 * 1000 - 1099 are for commanding the audit system 32 * 1100 - 1199 user space trusted application messages 33 * 1200 - 1299 messages internal to the audit daemon 34 * 1300 - 1399 audit event messages 35 * 1400 - 1499 SE Linux use 36 * 1500 - 1599 kernel LSPP events 37 * 1600 - 1699 kernel crypto events 38 * 1700 - 1799 kernel anomaly records 39 * 1800 - 1899 kernel integrity events 40 * 1900 - 1999 future kernel use 41 * 2000 is for otherwise unclassified kernel audit messages (legacy) 42 * 2001 - 2099 unused (kernel) 43 * 2100 - 2199 user space anomaly records 44 * 2200 - 2299 user space actions taken in response to anomalies 45 * 2300 - 2399 user space generated LSPP events 46 * 2400 - 2499 user space crypto events 47 * 2500 - 2999 future user space (maybe integrity labels and related events) 48 * 49 * Messages from 1000-1199 are bi-directional. 1200-1299 & 2100 - 2999 are 50 * exclusively user space. 1300-2099 is kernel --> user space 51 * communication. 52 */ 53 #define AUDIT_GET 1000 /* Get status */ 54 #define AUDIT_SET 1001 /* Set status (enable/disable/auditd) */ 55 #define AUDIT_LIST 1002 /* List syscall rules -- deprecated */ 56 #define AUDIT_ADD 1003 /* Add syscall rule -- deprecated */ 57 #define AUDIT_DEL 1004 /* Delete syscall rule -- deprecated */ 58 #define AUDIT_USER 1005 /* Message from userspace -- deprecated */ 59 #define AUDIT_LOGIN 1006 /* Define the login id and information */ 60 #define AUDIT_WATCH_INS 1007 /* Insert file/dir watch entry */ 61 #define AUDIT_WATCH_REM 1008 /* Remove file/dir watch entry */ 62 #define AUDIT_WATCH_LIST 1009 /* List all file/dir watches */ 63 #define AUDIT_SIGNAL_INFO 1010 /* Get info about sender of signal to auditd */ 64 #define AUDIT_ADD_RULE 1011 /* Add syscall filtering rule */ 65 #define AUDIT_DEL_RULE 1012 /* Delete syscall filtering rule */ 66 #define AUDIT_LIST_RULES 1013 /* List syscall filtering rules */ 67 #define AUDIT_TRIM 1014 /* Trim junk from watched tree */ 68 #define AUDIT_MAKE_EQUIV 1015 /* Append to watched tree */ 69 #define AUDIT_TTY_GET 1016 /* Get TTY auditing status */ 70 #define AUDIT_TTY_SET 1017 /* Set TTY auditing status */ 71 #define AUDIT_SET_FEATURE 1018 /* Turn an audit feature on or off */ 72 #define AUDIT_GET_FEATURE 1019 /* Get which features are enabled */ 73 #define AUDIT_FEATURE_CHANGE 1020 /* audit log listing feature changes */ 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 */ 112 113 #define AUDIT_AVC 1400 /* SE Linux avc denial or grant */ 114 #define AUDIT_SELINUX_ERR 1401 /* Internal SE Linux Errors */ 115 #define AUDIT_AVC_PATH 1402 /* dentry, vfsmount pair from avc */ 116 #define AUDIT_MAC_POLICY_LOAD 1403 /* Policy file load */ 117 #define AUDIT_MAC_STATUS 1404 /* Changed enforcing,permissive,off */ 118 #define AUDIT_MAC_CONFIG_CHANGE 1405 /* Changes to booleans */ 119 #define AUDIT_MAC_UNLBL_ALLOW 1406 /* NetLabel: allow unlabeled traffic */ 120 #define AUDIT_MAC_CIPSOV4_ADD 1407 /* NetLabel: add CIPSOv4 DOI entry */ 121 #define AUDIT_MAC_CIPSOV4_DEL 1408 /* NetLabel: del CIPSOv4 DOI entry */ 122 #define AUDIT_MAC_MAP_ADD 1409 /* NetLabel: add LSM domain mapping */ 123 #define AUDIT_MAC_MAP_DEL 1410 /* NetLabel: del LSM domain mapping */ 124 #define AUDIT_MAC_IPSEC_ADDSA 1411 /* Not used */ 125 #define AUDIT_MAC_IPSEC_DELSA 1412 /* Not used */ 126 #define AUDIT_MAC_IPSEC_ADDSPD 1413 /* Not used */ 127 #define AUDIT_MAC_IPSEC_DELSPD 1414 /* Not used */ 128 #define AUDIT_MAC_IPSEC_EVENT 1415 /* Audit an IPSec event */ 129 #define AUDIT_MAC_UNLBL_STCADD 1416 /* NetLabel: add a static label */ 130 #define AUDIT_MAC_UNLBL_STCDEL 1417 /* NetLabel: del a static label */ 131 132 #define AUDIT_FIRST_KERN_ANOM_MSG 1700 133 #define AUDIT_LAST_KERN_ANOM_MSG 1799 134 #define AUDIT_ANOM_PROMISCUOUS 1700 /* Device changed promiscuous mode */ 135 #define AUDIT_ANOM_ABEND 1701 /* Process ended abnormally */ 136 #define AUDIT_ANOM_LINK 1702 /* Suspicious use of file links */ 137 #define AUDIT_INTEGRITY_DATA 1800 /* Data integrity verification */ 138 #define AUDIT_INTEGRITY_METADATA 1801 /* Metadata integrity verification */ 139 #define AUDIT_INTEGRITY_STATUS 1802 /* Integrity enable status */ 140 #define AUDIT_INTEGRITY_HASH 1803 /* Integrity HASH type */ 141 #define AUDIT_INTEGRITY_PCR 1804 /* PCR invalidation msgs */ 142 #define AUDIT_INTEGRITY_RULE 1805 /* policy rule */ 143 144 #define AUDIT_KERNEL 2000 /* Asynchronous audit record. NOT A REQUEST. */ 145 146 /* Rule flags */ 147 #define AUDIT_FILTER_USER 0x00 /* Apply rule to user-generated messages */ 148 #define AUDIT_FILTER_TASK 0x01 /* Apply rule at task creation (not syscall) */ 149 #define AUDIT_FILTER_ENTRY 0x02 /* Apply rule at syscall entry */ 150 #define AUDIT_FILTER_WATCH 0x03 /* Apply rule to file system watches */ 151 #define AUDIT_FILTER_EXIT 0x04 /* Apply rule at syscall exit */ 152 #define AUDIT_FILTER_TYPE 0x05 /* Apply rule at audit_log_start */ 153 154 #define AUDIT_NR_FILTERS 6 155 156 #define AUDIT_FILTER_PREPEND 0x10 /* Prepend to front of list */ 157 158 /* Rule actions */ 159 #define AUDIT_NEVER 0 /* Do not build context if rule matches */ 160 #define AUDIT_POSSIBLE 1 /* Build context if rule matches */ 161 #define AUDIT_ALWAYS 2 /* Generate audit record if rule matches */ 162 163 /* Rule structure sizes -- if these change, different AUDIT_ADD and 164 * AUDIT_LIST commands must be implemented. */ 165 #define AUDIT_MAX_FIELDS 64 166 #define AUDIT_MAX_KEY_LEN 256 167 #define AUDIT_BITMASK_SIZE 64 168 #define AUDIT_WORD(nr) ((__u32)((nr)/32)) 169 #define AUDIT_BIT(nr) (1 << ((nr) - AUDIT_WORD(nr)*32)) 170 171 #define AUDIT_SYSCALL_CLASSES 16 172 #define AUDIT_CLASS_DIR_WRITE 0 173 #define AUDIT_CLASS_DIR_WRITE_32 1 174 #define AUDIT_CLASS_CHATTR 2 175 #define AUDIT_CLASS_CHATTR_32 3 176 #define AUDIT_CLASS_READ 4 177 #define AUDIT_CLASS_READ_32 5 178 #define AUDIT_CLASS_WRITE 6 179 #define AUDIT_CLASS_WRITE_32 7 180 #define AUDIT_CLASS_SIGNAL 8 181 #define AUDIT_CLASS_SIGNAL_32 9 182 183 /* This bitmask is used to validate user input. It represents all bits that 184 * are currently used in an audit field constant understood by the kernel. 185 * If you are adding a new #define AUDIT_<whatever>, please ensure that 186 * AUDIT_UNUSED_BITS is updated if need be. */ 187 #define AUDIT_UNUSED_BITS 0x07FFFC00 188 189 /* AUDIT_FIELD_COMPARE rule list */ 190 #define AUDIT_COMPARE_UID_TO_OBJ_UID 1 191 #define AUDIT_COMPARE_GID_TO_OBJ_GID 2 192 #define AUDIT_COMPARE_EUID_TO_OBJ_UID 3 193 #define AUDIT_COMPARE_EGID_TO_OBJ_GID 4 194 #define AUDIT_COMPARE_AUID_TO_OBJ_UID 5 195 #define AUDIT_COMPARE_SUID_TO_OBJ_UID 6 196 #define AUDIT_COMPARE_SGID_TO_OBJ_GID 7 197 #define AUDIT_COMPARE_FSUID_TO_OBJ_UID 8 198 #define AUDIT_COMPARE_FSGID_TO_OBJ_GID 9 199 200 #define AUDIT_COMPARE_UID_TO_AUID 10 201 #define AUDIT_COMPARE_UID_TO_EUID 11 202 #define AUDIT_COMPARE_UID_TO_FSUID 12 203 #define AUDIT_COMPARE_UID_TO_SUID 13 204 205 #define AUDIT_COMPARE_AUID_TO_FSUID 14 206 #define AUDIT_COMPARE_AUID_TO_SUID 15 207 #define AUDIT_COMPARE_AUID_TO_EUID 16 208 209 #define AUDIT_COMPARE_EUID_TO_SUID 17 210 #define AUDIT_COMPARE_EUID_TO_FSUID 18 211 212 #define AUDIT_COMPARE_SUID_TO_FSUID 19 213 214 #define AUDIT_COMPARE_GID_TO_EGID 20 215 #define AUDIT_COMPARE_GID_TO_FSGID 21 216 #define AUDIT_COMPARE_GID_TO_SGID 22 217 218 #define AUDIT_COMPARE_EGID_TO_FSGID 23 219 #define AUDIT_COMPARE_EGID_TO_SGID 24 220 #define AUDIT_COMPARE_SGID_TO_FSGID 25 221 222 #define AUDIT_MAX_FIELD_COMPARE AUDIT_COMPARE_SGID_TO_FSGID 223 224 /* Rule fields */ 225 /* These are useful when checking the 226 * task structure at task creation time 227 * (AUDIT_PER_TASK). */ 228 #define AUDIT_PID 0 229 #define AUDIT_UID 1 230 #define AUDIT_EUID 2 231 #define AUDIT_SUID 3 232 #define AUDIT_FSUID 4 233 #define AUDIT_GID 5 234 #define AUDIT_EGID 6 235 #define AUDIT_SGID 7 236 #define AUDIT_FSGID 8 237 #define AUDIT_LOGINUID 9 238 #define AUDIT_PERS 10 239 #define AUDIT_ARCH 11 240 #define AUDIT_MSGTYPE 12 241 #define AUDIT_SUBJ_USER 13 /* security label user */ 242 #define AUDIT_SUBJ_ROLE 14 /* security label role */ 243 #define AUDIT_SUBJ_TYPE 15 /* security label type */ 244 #define AUDIT_SUBJ_SEN 16 /* security label sensitivity label */ 245 #define AUDIT_SUBJ_CLR 17 /* security label clearance label */ 246 #define AUDIT_PPID 18 247 #define AUDIT_OBJ_USER 19 248 #define AUDIT_OBJ_ROLE 20 249 #define AUDIT_OBJ_TYPE 21 250 #define AUDIT_OBJ_LEV_LOW 22 251 #define AUDIT_OBJ_LEV_HIGH 23 252 #define AUDIT_LOGINUID_SET 24 253 254 /* These are ONLY useful when checking 255 * at syscall exit time (AUDIT_AT_EXIT). */ 256 #define AUDIT_DEVMAJOR 100 257 #define AUDIT_DEVMINOR 101 258 #define AUDIT_INODE 102 259 #define AUDIT_EXIT 103 260 #define AUDIT_SUCCESS 104 /* exit >= 0; value ignored */ 261 #define AUDIT_WATCH 105 262 #define AUDIT_PERM 106 263 #define AUDIT_DIR 107 264 #define AUDIT_FILETYPE 108 265 #define AUDIT_OBJ_UID 109 266 #define AUDIT_OBJ_GID 110 267 #define AUDIT_FIELD_COMPARE 111 268 269 #define AUDIT_ARG0 200 270 #define AUDIT_ARG1 (AUDIT_ARG0+1) 271 #define AUDIT_ARG2 (AUDIT_ARG0+2) 272 #define AUDIT_ARG3 (AUDIT_ARG0+3) 273 274 #define AUDIT_FILTERKEY 210 275 276 #define AUDIT_NEGATE 0x80000000 277 278 /* These are the supported operators. 279 * 4 2 1 8 280 * = > < ? 281 * ---------- 282 * 0 0 0 0 00 nonsense 283 * 0 0 0 1 08 & bit mask 284 * 0 0 1 0 10 < 285 * 0 1 0 0 20 > 286 * 0 1 1 0 30 != 287 * 1 0 0 0 40 = 288 * 1 0 0 1 48 &= bit test 289 * 1 0 1 0 50 <= 290 * 1 1 0 0 60 >= 291 * 1 1 1 1 78 all operators 292 */ 293 #define AUDIT_BIT_MASK 0x08000000 294 #define AUDIT_LESS_THAN 0x10000000 295 #define AUDIT_GREATER_THAN 0x20000000 296 #define AUDIT_NOT_EQUAL 0x30000000 297 #define AUDIT_EQUAL 0x40000000 298 #define AUDIT_BIT_TEST (AUDIT_BIT_MASK|AUDIT_EQUAL) 299 #define AUDIT_LESS_THAN_OR_EQUAL (AUDIT_LESS_THAN|AUDIT_EQUAL) 300 #define AUDIT_GREATER_THAN_OR_EQUAL (AUDIT_GREATER_THAN|AUDIT_EQUAL) 301 #define AUDIT_OPERATORS (AUDIT_EQUAL|AUDIT_NOT_EQUAL|AUDIT_BIT_MASK) 302 303 enum { 304 Audit_equal, 305 Audit_not_equal, 306 Audit_bitmask, 307 Audit_bittest, 308 Audit_lt, 309 Audit_gt, 310 Audit_le, 311 Audit_ge, 312 Audit_bad 313 }; 314 315 /* Status symbols */ 316 /* Mask values */ 317 #define AUDIT_STATUS_ENABLED 0x0001 318 #define AUDIT_STATUS_FAILURE 0x0002 319 #define AUDIT_STATUS_PID 0x0004 320 #define AUDIT_STATUS_RATE_LIMIT 0x0008 321 #define AUDIT_STATUS_BACKLOG_LIMIT 0x0010 322 #define AUDIT_STATUS_BACKLOG_WAIT_TIME 0x0020 323 324 #define AUDIT_VERSION_BACKLOG_LIMIT 1 325 #define AUDIT_VERSION_BACKLOG_WAIT_TIME 2 326 #define AUDIT_VERSION_LATEST AUDIT_VERSION_BACKLOG_WAIT_TIME 327 328 /* Failure-to-log actions */ 329 #define AUDIT_FAIL_SILENT 0 330 #define AUDIT_FAIL_PRINTK 1 331 #define AUDIT_FAIL_PANIC 2 332 333 /* distinguish syscall tables */ 334 #define __AUDIT_ARCH_64BIT 0x80000000 335 #define __AUDIT_ARCH_LE 0x40000000 336 #define AUDIT_ARCH_ALPHA (EM_ALPHA|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) 337 #define AUDIT_ARCH_ARM (EM_ARM|__AUDIT_ARCH_LE) 338 #define AUDIT_ARCH_ARMEB (EM_ARM) 339 #define AUDIT_ARCH_CRIS (EM_CRIS|__AUDIT_ARCH_LE) 340 #define AUDIT_ARCH_FRV (EM_FRV) 341 #define AUDIT_ARCH_I386 (EM_386|__AUDIT_ARCH_LE) 342 #define AUDIT_ARCH_IA64 (EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) 343 #define AUDIT_ARCH_M32R (EM_M32R) 344 #define AUDIT_ARCH_M68K (EM_68K) 345 #define AUDIT_ARCH_MIPS (EM_MIPS) 346 #define AUDIT_ARCH_MIPSEL (EM_MIPS|__AUDIT_ARCH_LE) 347 #define AUDIT_ARCH_MIPS64 (EM_MIPS|__AUDIT_ARCH_64BIT) 348 #define AUDIT_ARCH_MIPSEL64 (EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) 349 #define AUDIT_ARCH_OPENRISC (EM_OPENRISC) 350 #define AUDIT_ARCH_PARISC (EM_PARISC) 351 #define AUDIT_ARCH_PARISC64 (EM_PARISC|__AUDIT_ARCH_64BIT) 352 #define AUDIT_ARCH_PPC (EM_PPC) 353 #define AUDIT_ARCH_PPC64 (EM_PPC64|__AUDIT_ARCH_64BIT) 354 #define AUDIT_ARCH_S390 (EM_S390) 355 #define AUDIT_ARCH_S390X (EM_S390|__AUDIT_ARCH_64BIT) 356 #define AUDIT_ARCH_SH (EM_SH) 357 #define AUDIT_ARCH_SHEL (EM_SH|__AUDIT_ARCH_LE) 358 #define AUDIT_ARCH_SH64 (EM_SH|__AUDIT_ARCH_64BIT) 359 #define AUDIT_ARCH_SHEL64 (EM_SH|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) 360 #define AUDIT_ARCH_SPARC (EM_SPARC) 361 #define AUDIT_ARCH_SPARC64 (EM_SPARCV9|__AUDIT_ARCH_64BIT) 362 #define AUDIT_ARCH_X86_64 (EM_X86_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) 363 364 #define AUDIT_PERM_EXEC 1 365 #define AUDIT_PERM_WRITE 2 366 #define AUDIT_PERM_READ 4 367 #define AUDIT_PERM_ATTR 8 368 369 /* MAX_AUDIT_MESSAGE_LENGTH is set in audit:lib/libaudit.h as: 370 * 8970 // PATH_MAX*2+CONTEXT_SIZE*2+11+256+1 371 * max header+body+tailer: 44 + 29 + 32 + 262 + 7 + pad 372 */ 373 #define AUDIT_MESSAGE_TEXT_MAX 8560 374 375 struct audit_status { 376 __u32 mask; /* Bit mask for valid entries */ 377 __u32 enabled; /* 1 = enabled, 0 = disabled */ 378 __u32 failure; /* Failure-to-log action */ 379 __u32 pid; /* pid of auditd process */ 380 __u32 rate_limit; /* messages rate limit (per second) */ 381 __u32 backlog_limit; /* waiting messages limit */ 382 __u32 lost; /* messages lost */ 383 __u32 backlog; /* messages waiting in queue */ 384 __u32 version; /* audit api version number */ 385 __u32 backlog_wait_time;/* message queue wait timeout */ 386 }; 387 388 struct audit_features { 389 #define AUDIT_FEATURE_VERSION 1 390 __u32 vers; 391 __u32 mask; /* which bits we are dealing with */ 392 __u32 features; /* which feature to enable/disable */ 393 __u32 lock; /* which features to lock */ 394 }; 395 396 #define AUDIT_FEATURE_ONLY_UNSET_LOGINUID 0 397 #define AUDIT_FEATURE_LOGINUID_IMMUTABLE 1 398 #define AUDIT_LAST_FEATURE AUDIT_FEATURE_LOGINUID_IMMUTABLE 399 400 #define audit_feature_valid(x) ((x) >= 0 && (x) <= AUDIT_LAST_FEATURE) 401 #define AUDIT_FEATURE_TO_MASK(x) (1 << ((x) & 31)) /* mask for __u32 */ 402 403 struct audit_tty_status { 404 __u32 enabled; /* 1 = enabled, 0 = disabled */ 405 __u32 log_passwd; /* 1 = enabled, 0 = disabled */ 406 }; 407 408 #define AUDIT_UID_UNSET (unsigned int)-1 409 410 /* audit_rule_data supports filter rules with both integer and string 411 * fields. It corresponds with AUDIT_ADD_RULE, AUDIT_DEL_RULE and 412 * AUDIT_LIST_RULES requests. 413 */ 414 struct audit_rule_data { 415 __u32 flags; /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */ 416 __u32 action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */ 417 __u32 field_count; 418 __u32 mask[AUDIT_BITMASK_SIZE]; /* syscall(s) affected */ 419 __u32 fields[AUDIT_MAX_FIELDS]; 420 __u32 values[AUDIT_MAX_FIELDS]; 421 __u32 fieldflags[AUDIT_MAX_FIELDS]; 422 __u32 buflen; /* total length of string fields */ 423 char buf[0]; /* string fields buffer */ 424 }; 425 426 /* audit_rule is supported to maintain backward compatibility with 427 * userspace. It supports integer fields only and corresponds to 428 * AUDIT_ADD, AUDIT_DEL and AUDIT_LIST requests. 429 */ 430 struct audit_rule { /* for AUDIT_LIST, AUDIT_ADD, and AUDIT_DEL */ 431 __u32 flags; /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */ 432 __u32 action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */ 433 __u32 field_count; 434 __u32 mask[AUDIT_BITMASK_SIZE]; 435 __u32 fields[AUDIT_MAX_FIELDS]; 436 __u32 values[AUDIT_MAX_FIELDS]; 437 }; 438 439 #endif /* _UAPI_LINUX_AUDIT_H_ */ 440