1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* audit.h -- Auditing support 3 * 4 * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina. 5 * All Rights Reserved. 6 * 7 * Written by Rickard E. (Rik) Faith <faith@redhat.com> 8 */ 9 #ifndef _LINUX_AUDIT_H_ 10 #define _LINUX_AUDIT_H_ 11 12 #include <linux/sched.h> 13 #include <linux/ptrace.h> 14 #include <uapi/linux/audit.h> 15 #include <uapi/linux/netfilter/nf_tables.h> 16 17 #define AUDIT_INO_UNSET ((unsigned long)-1) 18 #define AUDIT_DEV_UNSET ((dev_t)-1) 19 20 struct audit_sig_info { 21 uid_t uid; 22 pid_t pid; 23 char ctx[]; 24 }; 25 26 struct audit_buffer; 27 struct audit_context; 28 struct inode; 29 struct netlink_skb_parms; 30 struct path; 31 struct linux_binprm; 32 struct mq_attr; 33 struct mqstat; 34 struct audit_watch; 35 struct audit_tree; 36 struct sk_buff; 37 38 struct audit_krule { 39 u32 pflags; 40 u32 flags; 41 u32 listnr; 42 u32 action; 43 u32 mask[AUDIT_BITMASK_SIZE]; 44 u32 buflen; /* for data alloc on list rules */ 45 u32 field_count; 46 char *filterkey; /* ties events to rules */ 47 struct audit_field *fields; 48 struct audit_field *arch_f; /* quick access to arch field */ 49 struct audit_field *inode_f; /* quick access to an inode field */ 50 struct audit_watch *watch; /* associated watch */ 51 struct audit_tree *tree; /* associated watched tree */ 52 struct audit_fsnotify_mark *exe; 53 struct list_head rlist; /* entry in audit_{watch,tree}.rules list */ 54 struct list_head list; /* for AUDIT_LIST* purposes only */ 55 u64 prio; 56 }; 57 58 /* Flag to indicate legacy AUDIT_LOGINUID unset usage */ 59 #define AUDIT_LOGINUID_LEGACY 0x1 60 61 struct audit_field { 62 u32 type; 63 union { 64 u32 val; 65 kuid_t uid; 66 kgid_t gid; 67 struct { 68 char *lsm_str; 69 void *lsm_rule; 70 }; 71 }; 72 u32 op; 73 }; 74 75 enum audit_ntp_type { 76 AUDIT_NTP_OFFSET, 77 AUDIT_NTP_FREQ, 78 AUDIT_NTP_STATUS, 79 AUDIT_NTP_TAI, 80 AUDIT_NTP_TICK, 81 AUDIT_NTP_ADJUST, 82 83 AUDIT_NTP_NVALS /* count */ 84 }; 85 86 #ifdef CONFIG_AUDITSYSCALL 87 struct audit_ntp_val { 88 long long oldval, newval; 89 }; 90 91 struct audit_ntp_data { 92 struct audit_ntp_val vals[AUDIT_NTP_NVALS]; 93 }; 94 #else 95 struct audit_ntp_data {}; 96 #endif 97 98 enum audit_nfcfgop { 99 AUDIT_XT_OP_REGISTER, 100 AUDIT_XT_OP_REPLACE, 101 AUDIT_XT_OP_UNREGISTER, 102 AUDIT_NFT_OP_TABLE_REGISTER, 103 AUDIT_NFT_OP_TABLE_UNREGISTER, 104 AUDIT_NFT_OP_CHAIN_REGISTER, 105 AUDIT_NFT_OP_CHAIN_UNREGISTER, 106 AUDIT_NFT_OP_RULE_REGISTER, 107 AUDIT_NFT_OP_RULE_UNREGISTER, 108 AUDIT_NFT_OP_SET_REGISTER, 109 AUDIT_NFT_OP_SET_UNREGISTER, 110 AUDIT_NFT_OP_SETELEM_REGISTER, 111 AUDIT_NFT_OP_SETELEM_UNREGISTER, 112 AUDIT_NFT_OP_GEN_REGISTER, 113 AUDIT_NFT_OP_OBJ_REGISTER, 114 AUDIT_NFT_OP_OBJ_UNREGISTER, 115 AUDIT_NFT_OP_OBJ_RESET, 116 AUDIT_NFT_OP_FLOWTABLE_REGISTER, 117 AUDIT_NFT_OP_FLOWTABLE_UNREGISTER, 118 AUDIT_NFT_OP_INVALID, 119 }; 120 121 extern int is_audit_feature_set(int which); 122 123 extern int __init audit_register_class(int class, unsigned *list); 124 extern int audit_classify_syscall(int abi, unsigned syscall); 125 extern int audit_classify_arch(int arch); 126 /* only for compat system calls */ 127 extern unsigned compat_write_class[]; 128 extern unsigned compat_read_class[]; 129 extern unsigned compat_dir_class[]; 130 extern unsigned compat_chattr_class[]; 131 extern unsigned compat_signal_class[]; 132 133 extern int audit_classify_compat_syscall(int abi, unsigned syscall); 134 135 /* audit_names->type values */ 136 #define AUDIT_TYPE_UNKNOWN 0 /* we don't know yet */ 137 #define AUDIT_TYPE_NORMAL 1 /* a "normal" audit record */ 138 #define AUDIT_TYPE_PARENT 2 /* a parent audit record */ 139 #define AUDIT_TYPE_CHILD_DELETE 3 /* a child being deleted */ 140 #define AUDIT_TYPE_CHILD_CREATE 4 /* a child being created */ 141 142 /* maximized args number that audit_socketcall can process */ 143 #define AUDITSC_ARGS 6 144 145 /* bit values for ->signal->audit_tty */ 146 #define AUDIT_TTY_ENABLE BIT(0) 147 #define AUDIT_TTY_LOG_PASSWD BIT(1) 148 149 struct filename; 150 151 #define AUDIT_OFF 0 152 #define AUDIT_ON 1 153 #define AUDIT_LOCKED 2 154 #ifdef CONFIG_AUDIT 155 /* These are defined in audit.c */ 156 /* Public API */ 157 extern __printf(4, 5) 158 void audit_log(struct audit_context *ctx, gfp_t gfp_mask, int type, 159 const char *fmt, ...); 160 161 extern struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, int type); 162 extern __printf(2, 3) 163 void audit_log_format(struct audit_buffer *ab, const char *fmt, ...); 164 extern void audit_log_end(struct audit_buffer *ab); 165 extern bool audit_string_contains_control(const char *string, 166 size_t len); 167 extern void audit_log_n_hex(struct audit_buffer *ab, 168 const unsigned char *buf, 169 size_t len); 170 extern void audit_log_n_string(struct audit_buffer *ab, 171 const char *buf, 172 size_t n); 173 extern void audit_log_n_untrustedstring(struct audit_buffer *ab, 174 const char *string, 175 size_t n); 176 extern void audit_log_untrustedstring(struct audit_buffer *ab, 177 const char *string); 178 extern void audit_log_d_path(struct audit_buffer *ab, 179 const char *prefix, 180 const struct path *path); 181 extern void audit_log_key(struct audit_buffer *ab, 182 char *key); 183 extern void audit_log_path_denied(int type, 184 const char *operation); 185 extern void audit_log_lost(const char *message); 186 187 extern int audit_log_task_context(struct audit_buffer *ab); 188 extern void audit_log_task_info(struct audit_buffer *ab); 189 190 extern int audit_update_lsm_rules(void); 191 192 /* Private API (for audit.c only) */ 193 extern int audit_rule_change(int type, int seq, void *data, size_t datasz); 194 extern int audit_list_rules_send(struct sk_buff *request_skb, int seq); 195 196 extern int audit_set_loginuid(kuid_t loginuid); 197 198 static inline kuid_t audit_get_loginuid(struct task_struct *tsk) 199 { 200 return tsk->loginuid; 201 } 202 203 static inline unsigned int audit_get_sessionid(struct task_struct *tsk) 204 { 205 return tsk->sessionid; 206 } 207 208 extern u32 audit_enabled; 209 210 extern int audit_signal_info(int sig, struct task_struct *t); 211 212 #else /* CONFIG_AUDIT */ 213 static inline __printf(4, 5) 214 void audit_log(struct audit_context *ctx, gfp_t gfp_mask, int type, 215 const char *fmt, ...) 216 { } 217 static inline struct audit_buffer *audit_log_start(struct audit_context *ctx, 218 gfp_t gfp_mask, int type) 219 { 220 return NULL; 221 } 222 static inline __printf(2, 3) 223 void audit_log_format(struct audit_buffer *ab, const char *fmt, ...) 224 { } 225 static inline void audit_log_end(struct audit_buffer *ab) 226 { } 227 static inline void audit_log_n_hex(struct audit_buffer *ab, 228 const unsigned char *buf, size_t len) 229 { } 230 static inline void audit_log_n_string(struct audit_buffer *ab, 231 const char *buf, size_t n) 232 { } 233 static inline void audit_log_n_untrustedstring(struct audit_buffer *ab, 234 const char *string, size_t n) 235 { } 236 static inline void audit_log_untrustedstring(struct audit_buffer *ab, 237 const char *string) 238 { } 239 static inline void audit_log_d_path(struct audit_buffer *ab, 240 const char *prefix, 241 const struct path *path) 242 { } 243 static inline void audit_log_key(struct audit_buffer *ab, char *key) 244 { } 245 static inline void audit_log_path_denied(int type, const char *operation) 246 { } 247 static inline int audit_log_task_context(struct audit_buffer *ab) 248 { 249 return 0; 250 } 251 static inline void audit_log_task_info(struct audit_buffer *ab) 252 { } 253 254 static inline kuid_t audit_get_loginuid(struct task_struct *tsk) 255 { 256 return INVALID_UID; 257 } 258 259 static inline unsigned int audit_get_sessionid(struct task_struct *tsk) 260 { 261 return AUDIT_SID_UNSET; 262 } 263 264 #define audit_enabled AUDIT_OFF 265 266 static inline int audit_signal_info(int sig, struct task_struct *t) 267 { 268 return 0; 269 } 270 271 #endif /* CONFIG_AUDIT */ 272 273 #ifdef CONFIG_AUDIT_COMPAT_GENERIC 274 #define audit_is_compat(arch) (!((arch) & __AUDIT_ARCH_64BIT)) 275 #else 276 #define audit_is_compat(arch) false 277 #endif 278 279 #define AUDIT_INODE_PARENT 1 /* dentry represents the parent */ 280 #define AUDIT_INODE_HIDDEN 2 /* audit record should be hidden */ 281 #define AUDIT_INODE_NOEVAL 4 /* audit record incomplete */ 282 283 #ifdef CONFIG_AUDITSYSCALL 284 #include <asm/syscall.h> /* for syscall_get_arch() */ 285 286 /* These are defined in auditsc.c */ 287 /* Public API */ 288 extern int audit_alloc(struct task_struct *task); 289 extern void __audit_free(struct task_struct *task); 290 extern void __audit_syscall_entry(int major, unsigned long a0, unsigned long a1, 291 unsigned long a2, unsigned long a3); 292 extern void __audit_syscall_exit(int ret_success, long ret_value); 293 extern struct filename *__audit_reusename(const __user char *uptr); 294 extern void __audit_getname(struct filename *name); 295 extern void __audit_inode(struct filename *name, const struct dentry *dentry, 296 unsigned int flags); 297 extern void __audit_file(const struct file *); 298 extern void __audit_inode_child(struct inode *parent, 299 const struct dentry *dentry, 300 const unsigned char type); 301 extern void audit_seccomp(unsigned long syscall, long signr, int code); 302 extern void audit_seccomp_actions_logged(const char *names, 303 const char *old_names, int res); 304 extern void __audit_ptrace(struct task_struct *t); 305 306 static inline void audit_set_context(struct task_struct *task, struct audit_context *ctx) 307 { 308 task->audit_context = ctx; 309 } 310 311 static inline struct audit_context *audit_context(void) 312 { 313 return current->audit_context; 314 } 315 316 static inline bool audit_dummy_context(void) 317 { 318 void *p = audit_context(); 319 return !p || *(int *)p; 320 } 321 static inline void audit_free(struct task_struct *task) 322 { 323 if (unlikely(task->audit_context)) 324 __audit_free(task); 325 } 326 static inline void audit_syscall_entry(int major, unsigned long a0, 327 unsigned long a1, unsigned long a2, 328 unsigned long a3) 329 { 330 if (unlikely(audit_context())) 331 __audit_syscall_entry(major, a0, a1, a2, a3); 332 } 333 static inline void audit_syscall_exit(void *pt_regs) 334 { 335 if (unlikely(audit_context())) { 336 int success = is_syscall_success(pt_regs); 337 long return_code = regs_return_value(pt_regs); 338 339 __audit_syscall_exit(success, return_code); 340 } 341 } 342 static inline struct filename *audit_reusename(const __user char *name) 343 { 344 if (unlikely(!audit_dummy_context())) 345 return __audit_reusename(name); 346 return NULL; 347 } 348 static inline void audit_getname(struct filename *name) 349 { 350 if (unlikely(!audit_dummy_context())) 351 __audit_getname(name); 352 } 353 static inline void audit_inode(struct filename *name, 354 const struct dentry *dentry, 355 unsigned int aflags) { 356 if (unlikely(!audit_dummy_context())) 357 __audit_inode(name, dentry, aflags); 358 } 359 static inline void audit_file(struct file *file) 360 { 361 if (unlikely(!audit_dummy_context())) 362 __audit_file(file); 363 } 364 static inline void audit_inode_parent_hidden(struct filename *name, 365 const struct dentry *dentry) 366 { 367 if (unlikely(!audit_dummy_context())) 368 __audit_inode(name, dentry, 369 AUDIT_INODE_PARENT | AUDIT_INODE_HIDDEN); 370 } 371 static inline void audit_inode_child(struct inode *parent, 372 const struct dentry *dentry, 373 const unsigned char type) { 374 if (unlikely(!audit_dummy_context())) 375 __audit_inode_child(parent, dentry, type); 376 } 377 void audit_core_dumps(long signr); 378 379 static inline void audit_ptrace(struct task_struct *t) 380 { 381 if (unlikely(!audit_dummy_context())) 382 __audit_ptrace(t); 383 } 384 385 /* Private API (for audit.c only) */ 386 extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp); 387 extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode); 388 extern void __audit_bprm(struct linux_binprm *bprm); 389 extern int __audit_socketcall(int nargs, unsigned long *args); 390 extern int __audit_sockaddr(int len, void *addr); 391 extern void __audit_fd_pair(int fd1, int fd2); 392 extern void __audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr); 393 extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec64 *abs_timeout); 394 extern void __audit_mq_notify(mqd_t mqdes, const struct sigevent *notification); 395 extern void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat); 396 extern int __audit_log_bprm_fcaps(struct linux_binprm *bprm, 397 const struct cred *new, 398 const struct cred *old); 399 extern void __audit_log_capset(const struct cred *new, const struct cred *old); 400 extern void __audit_mmap_fd(int fd, int flags); 401 extern void __audit_log_kern_module(char *name); 402 extern void __audit_fanotify(unsigned int response); 403 extern void __audit_tk_injoffset(struct timespec64 offset); 404 extern void __audit_ntp_log(const struct audit_ntp_data *ad); 405 extern void __audit_log_nfcfg(const char *name, u8 af, unsigned int nentries, 406 enum audit_nfcfgop op, gfp_t gfp); 407 408 static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp) 409 { 410 if (unlikely(!audit_dummy_context())) 411 __audit_ipc_obj(ipcp); 412 } 413 static inline void audit_fd_pair(int fd1, int fd2) 414 { 415 if (unlikely(!audit_dummy_context())) 416 __audit_fd_pair(fd1, fd2); 417 } 418 static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode) 419 { 420 if (unlikely(!audit_dummy_context())) 421 __audit_ipc_set_perm(qbytes, uid, gid, mode); 422 } 423 static inline void audit_bprm(struct linux_binprm *bprm) 424 { 425 if (unlikely(!audit_dummy_context())) 426 __audit_bprm(bprm); 427 } 428 static inline int audit_socketcall(int nargs, unsigned long *args) 429 { 430 if (unlikely(!audit_dummy_context())) 431 return __audit_socketcall(nargs, args); 432 return 0; 433 } 434 435 static inline int audit_socketcall_compat(int nargs, u32 *args) 436 { 437 unsigned long a[AUDITSC_ARGS]; 438 int i; 439 440 if (audit_dummy_context()) 441 return 0; 442 443 for (i = 0; i < nargs; i++) 444 a[i] = (unsigned long)args[i]; 445 return __audit_socketcall(nargs, a); 446 } 447 448 static inline int audit_sockaddr(int len, void *addr) 449 { 450 if (unlikely(!audit_dummy_context())) 451 return __audit_sockaddr(len, addr); 452 return 0; 453 } 454 static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr) 455 { 456 if (unlikely(!audit_dummy_context())) 457 __audit_mq_open(oflag, mode, attr); 458 } 459 static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec64 *abs_timeout) 460 { 461 if (unlikely(!audit_dummy_context())) 462 __audit_mq_sendrecv(mqdes, msg_len, msg_prio, abs_timeout); 463 } 464 static inline void audit_mq_notify(mqd_t mqdes, const struct sigevent *notification) 465 { 466 if (unlikely(!audit_dummy_context())) 467 __audit_mq_notify(mqdes, notification); 468 } 469 static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat) 470 { 471 if (unlikely(!audit_dummy_context())) 472 __audit_mq_getsetattr(mqdes, mqstat); 473 } 474 475 static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm, 476 const struct cred *new, 477 const struct cred *old) 478 { 479 if (unlikely(!audit_dummy_context())) 480 return __audit_log_bprm_fcaps(bprm, new, old); 481 return 0; 482 } 483 484 static inline void audit_log_capset(const struct cred *new, 485 const struct cred *old) 486 { 487 if (unlikely(!audit_dummy_context())) 488 __audit_log_capset(new, old); 489 } 490 491 static inline void audit_mmap_fd(int fd, int flags) 492 { 493 if (unlikely(!audit_dummy_context())) 494 __audit_mmap_fd(fd, flags); 495 } 496 497 static inline void audit_log_kern_module(char *name) 498 { 499 if (!audit_dummy_context()) 500 __audit_log_kern_module(name); 501 } 502 503 static inline void audit_fanotify(unsigned int response) 504 { 505 if (!audit_dummy_context()) 506 __audit_fanotify(response); 507 } 508 509 static inline void audit_tk_injoffset(struct timespec64 offset) 510 { 511 /* ignore no-op events */ 512 if (offset.tv_sec == 0 && offset.tv_nsec == 0) 513 return; 514 515 if (!audit_dummy_context()) 516 __audit_tk_injoffset(offset); 517 } 518 519 static inline void audit_ntp_init(struct audit_ntp_data *ad) 520 { 521 memset(ad, 0, sizeof(*ad)); 522 } 523 524 static inline void audit_ntp_set_old(struct audit_ntp_data *ad, 525 enum audit_ntp_type type, long long val) 526 { 527 ad->vals[type].oldval = val; 528 } 529 530 static inline void audit_ntp_set_new(struct audit_ntp_data *ad, 531 enum audit_ntp_type type, long long val) 532 { 533 ad->vals[type].newval = val; 534 } 535 536 static inline void audit_ntp_log(const struct audit_ntp_data *ad) 537 { 538 if (!audit_dummy_context()) 539 __audit_ntp_log(ad); 540 } 541 542 static inline void audit_log_nfcfg(const char *name, u8 af, 543 unsigned int nentries, 544 enum audit_nfcfgop op, gfp_t gfp) 545 { 546 if (audit_enabled) 547 __audit_log_nfcfg(name, af, nentries, op, gfp); 548 } 549 550 extern int audit_n_rules; 551 extern int audit_signals; 552 #else /* CONFIG_AUDITSYSCALL */ 553 static inline int audit_alloc(struct task_struct *task) 554 { 555 return 0; 556 } 557 static inline void audit_free(struct task_struct *task) 558 { } 559 static inline void audit_syscall_entry(int major, unsigned long a0, 560 unsigned long a1, unsigned long a2, 561 unsigned long a3) 562 { } 563 static inline void audit_syscall_exit(void *pt_regs) 564 { } 565 static inline bool audit_dummy_context(void) 566 { 567 return true; 568 } 569 static inline void audit_set_context(struct task_struct *task, struct audit_context *ctx) 570 { } 571 static inline struct audit_context *audit_context(void) 572 { 573 return NULL; 574 } 575 static inline struct filename *audit_reusename(const __user char *name) 576 { 577 return NULL; 578 } 579 static inline void audit_getname(struct filename *name) 580 { } 581 static inline void audit_inode(struct filename *name, 582 const struct dentry *dentry, 583 unsigned int aflags) 584 { } 585 static inline void audit_file(struct file *file) 586 { 587 } 588 static inline void audit_inode_parent_hidden(struct filename *name, 589 const struct dentry *dentry) 590 { } 591 static inline void audit_inode_child(struct inode *parent, 592 const struct dentry *dentry, 593 const unsigned char type) 594 { } 595 static inline void audit_core_dumps(long signr) 596 { } 597 static inline void audit_seccomp(unsigned long syscall, long signr, int code) 598 { } 599 static inline void audit_seccomp_actions_logged(const char *names, 600 const char *old_names, int res) 601 { } 602 static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp) 603 { } 604 static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, 605 gid_t gid, umode_t mode) 606 { } 607 static inline void audit_bprm(struct linux_binprm *bprm) 608 { } 609 static inline int audit_socketcall(int nargs, unsigned long *args) 610 { 611 return 0; 612 } 613 614 static inline int audit_socketcall_compat(int nargs, u32 *args) 615 { 616 return 0; 617 } 618 619 static inline void audit_fd_pair(int fd1, int fd2) 620 { } 621 static inline int audit_sockaddr(int len, void *addr) 622 { 623 return 0; 624 } 625 static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr) 626 { } 627 static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, 628 unsigned int msg_prio, 629 const struct timespec64 *abs_timeout) 630 { } 631 static inline void audit_mq_notify(mqd_t mqdes, 632 const struct sigevent *notification) 633 { } 634 static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat) 635 { } 636 static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm, 637 const struct cred *new, 638 const struct cred *old) 639 { 640 return 0; 641 } 642 static inline void audit_log_capset(const struct cred *new, 643 const struct cred *old) 644 { } 645 static inline void audit_mmap_fd(int fd, int flags) 646 { } 647 648 static inline void audit_log_kern_module(char *name) 649 { 650 } 651 652 static inline void audit_fanotify(unsigned int response) 653 { } 654 655 static inline void audit_tk_injoffset(struct timespec64 offset) 656 { } 657 658 static inline void audit_ntp_init(struct audit_ntp_data *ad) 659 { } 660 661 static inline void audit_ntp_set_old(struct audit_ntp_data *ad, 662 enum audit_ntp_type type, long long val) 663 { } 664 665 static inline void audit_ntp_set_new(struct audit_ntp_data *ad, 666 enum audit_ntp_type type, long long val) 667 { } 668 669 static inline void audit_ntp_log(const struct audit_ntp_data *ad) 670 { } 671 672 static inline void audit_ptrace(struct task_struct *t) 673 { } 674 675 static inline void audit_log_nfcfg(const char *name, u8 af, 676 unsigned int nentries, 677 enum audit_nfcfgop op, gfp_t gfp) 678 { } 679 680 #define audit_n_rules 0 681 #define audit_signals 0 682 #endif /* CONFIG_AUDITSYSCALL */ 683 684 static inline bool audit_loginuid_set(struct task_struct *tsk) 685 { 686 return uid_valid(audit_get_loginuid(tsk)); 687 } 688 689 #endif 690