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 <[email protected]> 21 * 22 */ 23 24 #ifndef _LINUX_AUDIT_H_ 25 #define _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 72 #define AUDIT_FIRST_USER_MSG 1100 /* Userspace messages mostly uninteresting to kernel */ 73 #define AUDIT_USER_AVC 1107 /* We filter this differently */ 74 #define AUDIT_USER_TTY 1124 /* Non-ICANON TTY input meaning */ 75 #define AUDIT_LAST_USER_MSG 1199 76 #define AUDIT_FIRST_USER_MSG2 2100 /* More user space messages */ 77 #define AUDIT_LAST_USER_MSG2 2999 78 79 #define AUDIT_DAEMON_START 1200 /* Daemon startup record */ 80 #define AUDIT_DAEMON_END 1201 /* Daemon normal stop record */ 81 #define AUDIT_DAEMON_ABORT 1202 /* Daemon error stop record */ 82 #define AUDIT_DAEMON_CONFIG 1203 /* Daemon config change */ 83 84 #define AUDIT_SYSCALL 1300 /* Syscall event */ 85 /* #define AUDIT_FS_WATCH 1301 * Deprecated */ 86 #define AUDIT_PATH 1302 /* Filename path information */ 87 #define AUDIT_IPC 1303 /* IPC record */ 88 #define AUDIT_SOCKETCALL 1304 /* sys_socketcall arguments */ 89 #define AUDIT_CONFIG_CHANGE 1305 /* Audit system configuration change */ 90 #define AUDIT_SOCKADDR 1306 /* sockaddr copied as syscall arg */ 91 #define AUDIT_CWD 1307 /* Current working directory */ 92 #define AUDIT_EXECVE 1309 /* execve arguments */ 93 #define AUDIT_IPC_SET_PERM 1311 /* IPC new permissions record type */ 94 #define AUDIT_MQ_OPEN 1312 /* POSIX MQ open record type */ 95 #define AUDIT_MQ_SENDRECV 1313 /* POSIX MQ send/receive record type */ 96 #define AUDIT_MQ_NOTIFY 1314 /* POSIX MQ notify record type */ 97 #define AUDIT_MQ_GETSETATTR 1315 /* POSIX MQ get/set attribute record type */ 98 #define AUDIT_KERNEL_OTHER 1316 /* For use by 3rd party modules */ 99 #define AUDIT_FD_PAIR 1317 /* audit record for pipe/socketpair */ 100 #define AUDIT_OBJ_PID 1318 /* ptrace target */ 101 #define AUDIT_TTY 1319 /* Input on an administrative TTY */ 102 #define AUDIT_EOE 1320 /* End of multi-record event */ 103 #define AUDIT_BPRM_FCAPS 1321 /* Information about fcaps increasing perms */ 104 #define AUDIT_CAPSET 1322 /* Record showing argument to sys_capset */ 105 106 #define AUDIT_AVC 1400 /* SE Linux avc denial or grant */ 107 #define AUDIT_SELINUX_ERR 1401 /* Internal SE Linux Errors */ 108 #define AUDIT_AVC_PATH 1402 /* dentry, vfsmount pair from avc */ 109 #define AUDIT_MAC_POLICY_LOAD 1403 /* Policy file load */ 110 #define AUDIT_MAC_STATUS 1404 /* Changed enforcing,permissive,off */ 111 #define AUDIT_MAC_CONFIG_CHANGE 1405 /* Changes to booleans */ 112 #define AUDIT_MAC_UNLBL_ALLOW 1406 /* NetLabel: allow unlabeled traffic */ 113 #define AUDIT_MAC_CIPSOV4_ADD 1407 /* NetLabel: add CIPSOv4 DOI entry */ 114 #define AUDIT_MAC_CIPSOV4_DEL 1408 /* NetLabel: del CIPSOv4 DOI entry */ 115 #define AUDIT_MAC_MAP_ADD 1409 /* NetLabel: add LSM domain mapping */ 116 #define AUDIT_MAC_MAP_DEL 1410 /* NetLabel: del LSM domain mapping */ 117 #define AUDIT_MAC_IPSEC_ADDSA 1411 /* Not used */ 118 #define AUDIT_MAC_IPSEC_DELSA 1412 /* Not used */ 119 #define AUDIT_MAC_IPSEC_ADDSPD 1413 /* Not used */ 120 #define AUDIT_MAC_IPSEC_DELSPD 1414 /* Not used */ 121 #define AUDIT_MAC_IPSEC_EVENT 1415 /* Audit an IPSec event */ 122 #define AUDIT_MAC_UNLBL_STCADD 1416 /* NetLabel: add a static label */ 123 #define AUDIT_MAC_UNLBL_STCDEL 1417 /* NetLabel: del a static label */ 124 125 #define AUDIT_FIRST_KERN_ANOM_MSG 1700 126 #define AUDIT_LAST_KERN_ANOM_MSG 1799 127 #define AUDIT_ANOM_PROMISCUOUS 1700 /* Device changed promiscuous mode */ 128 #define AUDIT_ANOM_ABEND 1701 /* Process ended abnormally */ 129 #define AUDIT_INTEGRITY_DATA 1800 /* Data integrity verification */ 130 #define AUDIT_INTEGRITY_METADATA 1801 /* Metadata integrity verification */ 131 #define AUDIT_INTEGRITY_STATUS 1802 /* Integrity enable status */ 132 #define AUDIT_INTEGRITY_HASH 1803 /* Integrity HASH type */ 133 #define AUDIT_INTEGRITY_PCR 1804 /* PCR invalidation msgs */ 134 #define AUDIT_INTEGRITY_RULE 1805 /* policy rule */ 135 136 #define AUDIT_KERNEL 2000 /* Asynchronous audit record. NOT A REQUEST. */ 137 138 /* Rule flags */ 139 #define AUDIT_FILTER_USER 0x00 /* Apply rule to user-generated messages */ 140 #define AUDIT_FILTER_TASK 0x01 /* Apply rule at task creation (not syscall) */ 141 #define AUDIT_FILTER_ENTRY 0x02 /* Apply rule at syscall entry */ 142 #define AUDIT_FILTER_WATCH 0x03 /* Apply rule to file system watches */ 143 #define AUDIT_FILTER_EXIT 0x04 /* Apply rule at syscall exit */ 144 #define AUDIT_FILTER_TYPE 0x05 /* Apply rule at audit_log_start */ 145 146 #define AUDIT_NR_FILTERS 6 147 148 #define AUDIT_FILTER_PREPEND 0x10 /* Prepend to front of list */ 149 150 /* Rule actions */ 151 #define AUDIT_NEVER 0 /* Do not build context if rule matches */ 152 #define AUDIT_POSSIBLE 1 /* Build context if rule matches */ 153 #define AUDIT_ALWAYS 2 /* Generate audit record if rule matches */ 154 155 /* Rule structure sizes -- if these change, different AUDIT_ADD and 156 * AUDIT_LIST commands must be implemented. */ 157 #define AUDIT_MAX_FIELDS 64 158 #define AUDIT_MAX_KEY_LEN 256 159 #define AUDIT_BITMASK_SIZE 64 160 #define AUDIT_WORD(nr) ((__u32)((nr)/32)) 161 #define AUDIT_BIT(nr) (1 << ((nr) - AUDIT_WORD(nr)*32)) 162 163 #define AUDIT_SYSCALL_CLASSES 16 164 #define AUDIT_CLASS_DIR_WRITE 0 165 #define AUDIT_CLASS_DIR_WRITE_32 1 166 #define AUDIT_CLASS_CHATTR 2 167 #define AUDIT_CLASS_CHATTR_32 3 168 #define AUDIT_CLASS_READ 4 169 #define AUDIT_CLASS_READ_32 5 170 #define AUDIT_CLASS_WRITE 6 171 #define AUDIT_CLASS_WRITE_32 7 172 #define AUDIT_CLASS_SIGNAL 8 173 #define AUDIT_CLASS_SIGNAL_32 9 174 175 /* This bitmask is used to validate user input. It represents all bits that 176 * are currently used in an audit field constant understood by the kernel. 177 * If you are adding a new #define AUDIT_<whatever>, please ensure that 178 * AUDIT_UNUSED_BITS is updated if need be. */ 179 #define AUDIT_UNUSED_BITS 0x07FFFC00 180 181 182 /* Rule fields */ 183 /* These are useful when checking the 184 * task structure at task creation time 185 * (AUDIT_PER_TASK). */ 186 #define AUDIT_PID 0 187 #define AUDIT_UID 1 188 #define AUDIT_EUID 2 189 #define AUDIT_SUID 3 190 #define AUDIT_FSUID 4 191 #define AUDIT_GID 5 192 #define AUDIT_EGID 6 193 #define AUDIT_SGID 7 194 #define AUDIT_FSGID 8 195 #define AUDIT_LOGINUID 9 196 #define AUDIT_PERS 10 197 #define AUDIT_ARCH 11 198 #define AUDIT_MSGTYPE 12 199 #define AUDIT_SUBJ_USER 13 /* security label user */ 200 #define AUDIT_SUBJ_ROLE 14 /* security label role */ 201 #define AUDIT_SUBJ_TYPE 15 /* security label type */ 202 #define AUDIT_SUBJ_SEN 16 /* security label sensitivity label */ 203 #define AUDIT_SUBJ_CLR 17 /* security label clearance label */ 204 #define AUDIT_PPID 18 205 #define AUDIT_OBJ_USER 19 206 #define AUDIT_OBJ_ROLE 20 207 #define AUDIT_OBJ_TYPE 21 208 #define AUDIT_OBJ_LEV_LOW 22 209 #define AUDIT_OBJ_LEV_HIGH 23 210 211 /* These are ONLY useful when checking 212 * at syscall exit time (AUDIT_AT_EXIT). */ 213 #define AUDIT_DEVMAJOR 100 214 #define AUDIT_DEVMINOR 101 215 #define AUDIT_INODE 102 216 #define AUDIT_EXIT 103 217 #define AUDIT_SUCCESS 104 /* exit >= 0; value ignored */ 218 #define AUDIT_WATCH 105 219 #define AUDIT_PERM 106 220 #define AUDIT_DIR 107 221 #define AUDIT_FILETYPE 108 222 223 #define AUDIT_ARG0 200 224 #define AUDIT_ARG1 (AUDIT_ARG0+1) 225 #define AUDIT_ARG2 (AUDIT_ARG0+2) 226 #define AUDIT_ARG3 (AUDIT_ARG0+3) 227 228 #define AUDIT_FILTERKEY 210 229 230 #define AUDIT_NEGATE 0x80000000 231 232 /* These are the supported operators. 233 * 4 2 1 8 234 * = > < ? 235 * ---------- 236 * 0 0 0 0 00 nonsense 237 * 0 0 0 1 08 & bit mask 238 * 0 0 1 0 10 < 239 * 0 1 0 0 20 > 240 * 0 1 1 0 30 != 241 * 1 0 0 0 40 = 242 * 1 0 0 1 48 &= bit test 243 * 1 0 1 0 50 <= 244 * 1 1 0 0 60 >= 245 * 1 1 1 1 78 all operators 246 */ 247 #define AUDIT_BIT_MASK 0x08000000 248 #define AUDIT_LESS_THAN 0x10000000 249 #define AUDIT_GREATER_THAN 0x20000000 250 #define AUDIT_NOT_EQUAL 0x30000000 251 #define AUDIT_EQUAL 0x40000000 252 #define AUDIT_BIT_TEST (AUDIT_BIT_MASK|AUDIT_EQUAL) 253 #define AUDIT_LESS_THAN_OR_EQUAL (AUDIT_LESS_THAN|AUDIT_EQUAL) 254 #define AUDIT_GREATER_THAN_OR_EQUAL (AUDIT_GREATER_THAN|AUDIT_EQUAL) 255 #define AUDIT_OPERATORS (AUDIT_EQUAL|AUDIT_NOT_EQUAL|AUDIT_BIT_MASK) 256 257 enum { 258 Audit_equal, 259 Audit_not_equal, 260 Audit_bitmask, 261 Audit_bittest, 262 Audit_lt, 263 Audit_gt, 264 Audit_le, 265 Audit_ge, 266 Audit_bad 267 }; 268 269 /* Status symbols */ 270 /* Mask values */ 271 #define AUDIT_STATUS_ENABLED 0x0001 272 #define AUDIT_STATUS_FAILURE 0x0002 273 #define AUDIT_STATUS_PID 0x0004 274 #define AUDIT_STATUS_RATE_LIMIT 0x0008 275 #define AUDIT_STATUS_BACKLOG_LIMIT 0x0010 276 /* Failure-to-log actions */ 277 #define AUDIT_FAIL_SILENT 0 278 #define AUDIT_FAIL_PRINTK 1 279 #define AUDIT_FAIL_PANIC 2 280 281 /* distinguish syscall tables */ 282 #define __AUDIT_ARCH_64BIT 0x80000000 283 #define __AUDIT_ARCH_LE 0x40000000 284 #define AUDIT_ARCH_ALPHA (EM_ALPHA|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) 285 #define AUDIT_ARCH_ARM (EM_ARM|__AUDIT_ARCH_LE) 286 #define AUDIT_ARCH_ARMEB (EM_ARM) 287 #define AUDIT_ARCH_CRIS (EM_CRIS|__AUDIT_ARCH_LE) 288 #define AUDIT_ARCH_FRV (EM_FRV) 289 #define AUDIT_ARCH_H8300 (EM_H8_300) 290 #define AUDIT_ARCH_I386 (EM_386|__AUDIT_ARCH_LE) 291 #define AUDIT_ARCH_IA64 (EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) 292 #define AUDIT_ARCH_M32R (EM_M32R) 293 #define AUDIT_ARCH_M68K (EM_68K) 294 #define AUDIT_ARCH_MIPS (EM_MIPS) 295 #define AUDIT_ARCH_MIPSEL (EM_MIPS|__AUDIT_ARCH_LE) 296 #define AUDIT_ARCH_MIPS64 (EM_MIPS|__AUDIT_ARCH_64BIT) 297 #define AUDIT_ARCH_MIPSEL64 (EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) 298 #define AUDIT_ARCH_PARISC (EM_PARISC) 299 #define AUDIT_ARCH_PARISC64 (EM_PARISC|__AUDIT_ARCH_64BIT) 300 #define AUDIT_ARCH_PPC (EM_PPC) 301 #define AUDIT_ARCH_PPC64 (EM_PPC64|__AUDIT_ARCH_64BIT) 302 #define AUDIT_ARCH_S390 (EM_S390) 303 #define AUDIT_ARCH_S390X (EM_S390|__AUDIT_ARCH_64BIT) 304 #define AUDIT_ARCH_SH (EM_SH) 305 #define AUDIT_ARCH_SHEL (EM_SH|__AUDIT_ARCH_LE) 306 #define AUDIT_ARCH_SH64 (EM_SH|__AUDIT_ARCH_64BIT) 307 #define AUDIT_ARCH_SHEL64 (EM_SH|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) 308 #define AUDIT_ARCH_SPARC (EM_SPARC) 309 #define AUDIT_ARCH_SPARC64 (EM_SPARCV9|__AUDIT_ARCH_64BIT) 310 #define AUDIT_ARCH_X86_64 (EM_X86_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) 311 312 #define AUDIT_PERM_EXEC 1 313 #define AUDIT_PERM_WRITE 2 314 #define AUDIT_PERM_READ 4 315 #define AUDIT_PERM_ATTR 8 316 317 struct audit_status { 318 __u32 mask; /* Bit mask for valid entries */ 319 __u32 enabled; /* 1 = enabled, 0 = disabled */ 320 __u32 failure; /* Failure-to-log action */ 321 __u32 pid; /* pid of auditd process */ 322 __u32 rate_limit; /* messages rate limit (per second) */ 323 __u32 backlog_limit; /* waiting messages limit */ 324 __u32 lost; /* messages lost */ 325 __u32 backlog; /* messages waiting in queue */ 326 }; 327 328 struct audit_tty_status { 329 __u32 enabled; /* 1 = enabled, 0 = disabled */ 330 }; 331 332 /* audit_rule_data supports filter rules with both integer and string 333 * fields. It corresponds with AUDIT_ADD_RULE, AUDIT_DEL_RULE and 334 * AUDIT_LIST_RULES requests. 335 */ 336 struct audit_rule_data { 337 __u32 flags; /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */ 338 __u32 action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */ 339 __u32 field_count; 340 __u32 mask[AUDIT_BITMASK_SIZE]; /* syscall(s) affected */ 341 __u32 fields[AUDIT_MAX_FIELDS]; 342 __u32 values[AUDIT_MAX_FIELDS]; 343 __u32 fieldflags[AUDIT_MAX_FIELDS]; 344 __u32 buflen; /* total length of string fields */ 345 char buf[0]; /* string fields buffer */ 346 }; 347 348 /* audit_rule is supported to maintain backward compatibility with 349 * userspace. It supports integer fields only and corresponds to 350 * AUDIT_ADD, AUDIT_DEL and AUDIT_LIST requests. 351 */ 352 struct audit_rule { /* for AUDIT_LIST, AUDIT_ADD, and AUDIT_DEL */ 353 __u32 flags; /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */ 354 __u32 action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */ 355 __u32 field_count; 356 __u32 mask[AUDIT_BITMASK_SIZE]; 357 __u32 fields[AUDIT_MAX_FIELDS]; 358 __u32 values[AUDIT_MAX_FIELDS]; 359 }; 360 361 #ifdef __KERNEL__ 362 #include <linux/sched.h> 363 364 struct audit_sig_info { 365 uid_t uid; 366 pid_t pid; 367 char ctx[0]; 368 }; 369 370 struct audit_buffer; 371 struct audit_context; 372 struct inode; 373 struct netlink_skb_parms; 374 struct linux_binprm; 375 struct mq_attr; 376 struct mqstat; 377 struct audit_watch; 378 struct audit_tree; 379 380 struct audit_krule { 381 int vers_ops; 382 u32 flags; 383 u32 listnr; 384 u32 action; 385 u32 mask[AUDIT_BITMASK_SIZE]; 386 u32 buflen; /* for data alloc on list rules */ 387 u32 field_count; 388 char *filterkey; /* ties events to rules */ 389 struct audit_field *fields; 390 struct audit_field *arch_f; /* quick access to arch field */ 391 struct audit_field *inode_f; /* quick access to an inode field */ 392 struct audit_watch *watch; /* associated watch */ 393 struct audit_tree *tree; /* associated watched tree */ 394 struct list_head rlist; /* entry in audit_{watch,tree}.rules list */ 395 struct list_head list; /* for AUDIT_LIST* purposes only */ 396 u64 prio; 397 }; 398 399 struct audit_field { 400 u32 type; 401 u32 val; 402 u32 op; 403 char *lsm_str; 404 void *lsm_rule; 405 }; 406 407 #define AUDITSC_INVALID 0 408 #define AUDITSC_SUCCESS 1 409 #define AUDITSC_FAILURE 2 410 #define AUDITSC_RESULT(x) ( ((long)(x))<0?AUDITSC_FAILURE:AUDITSC_SUCCESS ) 411 extern int __init audit_register_class(int class, unsigned *list); 412 extern int audit_classify_syscall(int abi, unsigned syscall); 413 extern int audit_classify_arch(int arch); 414 #ifdef CONFIG_AUDITSYSCALL 415 /* These are defined in auditsc.c */ 416 /* Public API */ 417 extern void audit_finish_fork(struct task_struct *child); 418 extern int audit_alloc(struct task_struct *task); 419 extern void audit_free(struct task_struct *task); 420 extern void audit_syscall_entry(int arch, 421 int major, unsigned long a0, unsigned long a1, 422 unsigned long a2, unsigned long a3); 423 extern void audit_syscall_exit(int failed, long return_code); 424 extern void __audit_getname(const char *name); 425 extern void audit_putname(const char *name); 426 extern void __audit_inode(const char *name, const struct dentry *dentry); 427 extern void __audit_inode_child(const struct dentry *dentry, 428 const struct inode *parent); 429 extern void __audit_ptrace(struct task_struct *t); 430 431 static inline int audit_dummy_context(void) 432 { 433 void *p = current->audit_context; 434 return !p || *(int *)p; 435 } 436 static inline void audit_getname(const char *name) 437 { 438 if (unlikely(!audit_dummy_context())) 439 __audit_getname(name); 440 } 441 static inline void audit_inode(const char *name, const struct dentry *dentry) { 442 if (unlikely(!audit_dummy_context())) 443 __audit_inode(name, dentry); 444 } 445 static inline void audit_inode_child(const struct dentry *dentry, 446 const struct inode *parent) { 447 if (unlikely(!audit_dummy_context())) 448 __audit_inode_child(dentry, parent); 449 } 450 void audit_core_dumps(long signr); 451 452 static inline void audit_ptrace(struct task_struct *t) 453 { 454 if (unlikely(!audit_dummy_context())) 455 __audit_ptrace(t); 456 } 457 458 /* Private API (for audit.c only) */ 459 extern unsigned int audit_serial(void); 460 extern int auditsc_get_stamp(struct audit_context *ctx, 461 struct timespec *t, unsigned int *serial); 462 extern int audit_set_loginuid(struct task_struct *task, uid_t loginuid); 463 #define audit_get_loginuid(t) ((t)->loginuid) 464 #define audit_get_sessionid(t) ((t)->sessionid) 465 extern void audit_log_task_context(struct audit_buffer *ab); 466 extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp); 467 extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode); 468 extern int audit_bprm(struct linux_binprm *bprm); 469 extern void audit_socketcall(int nargs, unsigned long *args); 470 extern int audit_sockaddr(int len, void *addr); 471 extern void __audit_fd_pair(int fd1, int fd2); 472 extern int audit_set_macxattr(const char *name); 473 extern void __audit_mq_open(int oflag, mode_t mode, struct mq_attr *attr); 474 extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout); 475 extern void __audit_mq_notify(mqd_t mqdes, const struct sigevent *notification); 476 extern void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat); 477 extern int __audit_log_bprm_fcaps(struct linux_binprm *bprm, 478 const struct cred *new, 479 const struct cred *old); 480 extern void __audit_log_capset(pid_t pid, const struct cred *new, const struct cred *old); 481 482 static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp) 483 { 484 if (unlikely(!audit_dummy_context())) 485 __audit_ipc_obj(ipcp); 486 } 487 static inline void audit_fd_pair(int fd1, int fd2) 488 { 489 if (unlikely(!audit_dummy_context())) 490 __audit_fd_pair(fd1, fd2); 491 } 492 static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode) 493 { 494 if (unlikely(!audit_dummy_context())) 495 __audit_ipc_set_perm(qbytes, uid, gid, mode); 496 } 497 static inline void audit_mq_open(int oflag, mode_t mode, struct mq_attr *attr) 498 { 499 if (unlikely(!audit_dummy_context())) 500 __audit_mq_open(oflag, mode, attr); 501 } 502 static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout) 503 { 504 if (unlikely(!audit_dummy_context())) 505 __audit_mq_sendrecv(mqdes, msg_len, msg_prio, abs_timeout); 506 } 507 static inline void audit_mq_notify(mqd_t mqdes, const struct sigevent *notification) 508 { 509 if (unlikely(!audit_dummy_context())) 510 __audit_mq_notify(mqdes, notification); 511 } 512 static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat) 513 { 514 if (unlikely(!audit_dummy_context())) 515 __audit_mq_getsetattr(mqdes, mqstat); 516 } 517 518 static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm, 519 const struct cred *new, 520 const struct cred *old) 521 { 522 if (unlikely(!audit_dummy_context())) 523 return __audit_log_bprm_fcaps(bprm, new, old); 524 return 0; 525 } 526 527 static inline void audit_log_capset(pid_t pid, const struct cred *new, 528 const struct cred *old) 529 { 530 if (unlikely(!audit_dummy_context())) 531 __audit_log_capset(pid, new, old); 532 } 533 534 extern int audit_n_rules; 535 extern int audit_signals; 536 #else 537 #define audit_finish_fork(t) 538 #define audit_alloc(t) ({ 0; }) 539 #define audit_free(t) do { ; } while (0) 540 #define audit_syscall_entry(ta,a,b,c,d,e) do { ; } while (0) 541 #define audit_syscall_exit(f,r) do { ; } while (0) 542 #define audit_dummy_context() 1 543 #define audit_getname(n) do { ; } while (0) 544 #define audit_putname(n) do { ; } while (0) 545 #define __audit_inode(n,d) do { ; } while (0) 546 #define __audit_inode_child(i,p) do { ; } while (0) 547 #define audit_inode(n,d) do { ; } while (0) 548 #define audit_inode_child(i,p) do { ; } while (0) 549 #define audit_core_dumps(i) do { ; } while (0) 550 #define auditsc_get_stamp(c,t,s) (0) 551 #define audit_get_loginuid(t) (-1) 552 #define audit_get_sessionid(t) (-1) 553 #define audit_log_task_context(b) do { ; } while (0) 554 #define audit_ipc_obj(i) ((void)0) 555 #define audit_ipc_set_perm(q,u,g,m) ((void)0) 556 #define audit_bprm(p) ({ 0; }) 557 #define audit_socketcall(n,a) ((void)0) 558 #define audit_fd_pair(n,a) ((void)0) 559 #define audit_sockaddr(len, addr) ({ 0; }) 560 #define audit_set_macxattr(n) do { ; } while (0) 561 #define audit_mq_open(o,m,a) ((void)0) 562 #define audit_mq_sendrecv(d,l,p,t) ((void)0) 563 #define audit_mq_notify(d,n) ((void)0) 564 #define audit_mq_getsetattr(d,s) ((void)0) 565 #define audit_log_bprm_fcaps(b, ncr, ocr) ({ 0; }) 566 #define audit_log_capset(pid, ncr, ocr) ((void)0) 567 #define audit_ptrace(t) ((void)0) 568 #define audit_n_rules 0 569 #define audit_signals 0 570 #endif 571 572 #ifdef CONFIG_AUDIT 573 /* These are defined in audit.c */ 574 /* Public API */ 575 extern void audit_log(struct audit_context *ctx, gfp_t gfp_mask, 576 int type, const char *fmt, ...) 577 __attribute__((format(printf,4,5))); 578 579 extern struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, int type); 580 extern void audit_log_format(struct audit_buffer *ab, 581 const char *fmt, ...) 582 __attribute__((format(printf,2,3))); 583 extern void audit_log_end(struct audit_buffer *ab); 584 extern int audit_string_contains_control(const char *string, 585 size_t len); 586 extern void audit_log_n_hex(struct audit_buffer *ab, 587 const unsigned char *buf, 588 size_t len); 589 extern void audit_log_n_string(struct audit_buffer *ab, 590 const char *buf, 591 size_t n); 592 #define audit_log_string(a,b) audit_log_n_string(a, b, strlen(b)); 593 extern void audit_log_n_untrustedstring(struct audit_buffer *ab, 594 const char *string, 595 size_t n); 596 extern void audit_log_untrustedstring(struct audit_buffer *ab, 597 const char *string); 598 extern void audit_log_d_path(struct audit_buffer *ab, 599 const char *prefix, 600 struct path *path); 601 extern void audit_log_key(struct audit_buffer *ab, 602 char *key); 603 extern void audit_log_lost(const char *message); 604 extern int audit_update_lsm_rules(void); 605 606 /* Private API (for audit.c only) */ 607 extern int audit_filter_user(struct netlink_skb_parms *cb); 608 extern int audit_filter_type(int type); 609 extern int audit_receive_filter(int type, int pid, int uid, int seq, 610 void *data, size_t datasz, uid_t loginuid, 611 u32 sessionid, u32 sid); 612 extern int audit_enabled; 613 #else 614 #define audit_log(c,g,t,f,...) do { ; } while (0) 615 #define audit_log_start(c,g,t) ({ NULL; }) 616 #define audit_log_vformat(b,f,a) do { ; } while (0) 617 #define audit_log_format(b,f,...) do { ; } while (0) 618 #define audit_log_end(b) do { ; } while (0) 619 #define audit_log_n_hex(a,b,l) do { ; } while (0) 620 #define audit_log_n_string(a,c,l) do { ; } while (0) 621 #define audit_log_string(a,c) do { ; } while (0) 622 #define audit_log_n_untrustedstring(a,n,s) do { ; } while (0) 623 #define audit_log_untrustedstring(a,s) do { ; } while (0) 624 #define audit_log_d_path(b, p, d) do { ; } while (0) 625 #define audit_log_key(b, k) do { ; } while (0) 626 #define audit_enabled 0 627 #endif 628 #endif 629 #endif 630