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 <[email protected]> 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); 295 296 extern void __audit_inode(struct filename *name, const struct dentry *dentry, 297 unsigned int flags); 298 extern void __audit_file(const struct file *); 299 extern void __audit_inode_child(struct inode *parent, 300 const struct dentry *dentry, 301 const unsigned char type); 302 extern void audit_seccomp(unsigned long syscall, long signr, int code); 303 extern void audit_seccomp_actions_logged(const char *names, 304 const char *old_names, int res); 305 extern void __audit_ptrace(struct task_struct *t); 306 307 static inline void audit_set_context(struct task_struct *task, struct audit_context *ctx) 308 { 309 task->audit_context = ctx; 310 } 311 312 static inline struct audit_context *audit_context(void) 313 { 314 return current->audit_context; 315 } 316 317 static inline bool audit_dummy_context(void) 318 { 319 void *p = audit_context(); 320 return !p || *(int *)p; 321 } 322 static inline void audit_free(struct task_struct *task) 323 { 324 if (unlikely(task->audit_context)) 325 __audit_free(task); 326 } 327 static inline void audit_syscall_entry(int major, unsigned long a0, 328 unsigned long a1, unsigned long a2, 329 unsigned long a3) 330 { 331 if (unlikely(audit_context())) 332 __audit_syscall_entry(major, a0, a1, a2, a3); 333 } 334 static inline void audit_syscall_exit(void *pt_regs) 335 { 336 if (unlikely(audit_context())) { 337 int success = is_syscall_success(pt_regs); 338 long return_code = regs_return_value(pt_regs); 339 340 __audit_syscall_exit(success, return_code); 341 } 342 } 343 static inline struct filename *audit_reusename(const __user char *name) 344 { 345 if (unlikely(!audit_dummy_context())) 346 return __audit_reusename(name); 347 return NULL; 348 } 349 static inline void audit_getname(struct filename *name) 350 { 351 if (unlikely(!audit_dummy_context())) 352 __audit_getname(name); 353 } 354 static inline void audit_inode(struct filename *name, 355 const struct dentry *dentry, 356 unsigned int aflags) { 357 if (unlikely(!audit_dummy_context())) 358 __audit_inode(name, dentry, aflags); 359 } 360 static inline void audit_file(struct file *file) 361 { 362 if (unlikely(!audit_dummy_context())) 363 __audit_file(file); 364 } 365 static inline void audit_inode_parent_hidden(struct filename *name, 366 const struct dentry *dentry) 367 { 368 if (unlikely(!audit_dummy_context())) 369 __audit_inode(name, dentry, 370 AUDIT_INODE_PARENT | AUDIT_INODE_HIDDEN); 371 } 372 static inline void audit_inode_child(struct inode *parent, 373 const struct dentry *dentry, 374 const unsigned char type) { 375 if (unlikely(!audit_dummy_context())) 376 __audit_inode_child(parent, dentry, type); 377 } 378 void audit_core_dumps(long signr); 379 380 static inline void audit_ptrace(struct task_struct *t) 381 { 382 if (unlikely(!audit_dummy_context())) 383 __audit_ptrace(t); 384 } 385 386 /* Private API (for audit.c only) */ 387 extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp); 388 extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode); 389 extern void __audit_bprm(struct linux_binprm *bprm); 390 extern int __audit_socketcall(int nargs, unsigned long *args); 391 extern int __audit_sockaddr(int len, void *addr); 392 extern void __audit_fd_pair(int fd1, int fd2); 393 extern void __audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr); 394 extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec64 *abs_timeout); 395 extern void __audit_mq_notify(mqd_t mqdes, const struct sigevent *notification); 396 extern void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat); 397 extern int __audit_log_bprm_fcaps(struct linux_binprm *bprm, 398 const struct cred *new, 399 const struct cred *old); 400 extern void __audit_log_capset(const struct cred *new, const struct cred *old); 401 extern void __audit_mmap_fd(int fd, int flags); 402 extern void __audit_log_kern_module(char *name); 403 extern void __audit_fanotify(unsigned int response); 404 extern void __audit_tk_injoffset(struct timespec64 offset); 405 extern void __audit_ntp_log(const struct audit_ntp_data *ad); 406 extern void __audit_log_nfcfg(const char *name, u8 af, unsigned int nentries, 407 enum audit_nfcfgop op, gfp_t gfp); 408 409 static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp) 410 { 411 if (unlikely(!audit_dummy_context())) 412 __audit_ipc_obj(ipcp); 413 } 414 static inline void audit_fd_pair(int fd1, int fd2) 415 { 416 if (unlikely(!audit_dummy_context())) 417 __audit_fd_pair(fd1, fd2); 418 } 419 static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode) 420 { 421 if (unlikely(!audit_dummy_context())) 422 __audit_ipc_set_perm(qbytes, uid, gid, mode); 423 } 424 static inline void audit_bprm(struct linux_binprm *bprm) 425 { 426 if (unlikely(!audit_dummy_context())) 427 __audit_bprm(bprm); 428 } 429 static inline int audit_socketcall(int nargs, unsigned long *args) 430 { 431 if (unlikely(!audit_dummy_context())) 432 return __audit_socketcall(nargs, args); 433 return 0; 434 } 435 436 static inline int audit_socketcall_compat(int nargs, u32 *args) 437 { 438 unsigned long a[AUDITSC_ARGS]; 439 int i; 440 441 if (audit_dummy_context()) 442 return 0; 443 444 for (i = 0; i < nargs; i++) 445 a[i] = (unsigned long)args[i]; 446 return __audit_socketcall(nargs, a); 447 } 448 449 static inline int audit_sockaddr(int len, void *addr) 450 { 451 if (unlikely(!audit_dummy_context())) 452 return __audit_sockaddr(len, addr); 453 return 0; 454 } 455 static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr) 456 { 457 if (unlikely(!audit_dummy_context())) 458 __audit_mq_open(oflag, mode, attr); 459 } 460 static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec64 *abs_timeout) 461 { 462 if (unlikely(!audit_dummy_context())) 463 __audit_mq_sendrecv(mqdes, msg_len, msg_prio, abs_timeout); 464 } 465 static inline void audit_mq_notify(mqd_t mqdes, const struct sigevent *notification) 466 { 467 if (unlikely(!audit_dummy_context())) 468 __audit_mq_notify(mqdes, notification); 469 } 470 static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat) 471 { 472 if (unlikely(!audit_dummy_context())) 473 __audit_mq_getsetattr(mqdes, mqstat); 474 } 475 476 static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm, 477 const struct cred *new, 478 const struct cred *old) 479 { 480 if (unlikely(!audit_dummy_context())) 481 return __audit_log_bprm_fcaps(bprm, new, old); 482 return 0; 483 } 484 485 static inline void audit_log_capset(const struct cred *new, 486 const struct cred *old) 487 { 488 if (unlikely(!audit_dummy_context())) 489 __audit_log_capset(new, old); 490 } 491 492 static inline void audit_mmap_fd(int fd, int flags) 493 { 494 if (unlikely(!audit_dummy_context())) 495 __audit_mmap_fd(fd, flags); 496 } 497 498 static inline void audit_log_kern_module(char *name) 499 { 500 if (!audit_dummy_context()) 501 __audit_log_kern_module(name); 502 } 503 504 static inline void audit_fanotify(unsigned int response) 505 { 506 if (!audit_dummy_context()) 507 __audit_fanotify(response); 508 } 509 510 static inline void audit_tk_injoffset(struct timespec64 offset) 511 { 512 /* ignore no-op events */ 513 if (offset.tv_sec == 0 && offset.tv_nsec == 0) 514 return; 515 516 if (!audit_dummy_context()) 517 __audit_tk_injoffset(offset); 518 } 519 520 static inline void audit_ntp_init(struct audit_ntp_data *ad) 521 { 522 memset(ad, 0, sizeof(*ad)); 523 } 524 525 static inline void audit_ntp_set_old(struct audit_ntp_data *ad, 526 enum audit_ntp_type type, long long val) 527 { 528 ad->vals[type].oldval = val; 529 } 530 531 static inline void audit_ntp_set_new(struct audit_ntp_data *ad, 532 enum audit_ntp_type type, long long val) 533 { 534 ad->vals[type].newval = val; 535 } 536 537 static inline void audit_ntp_log(const struct audit_ntp_data *ad) 538 { 539 if (!audit_dummy_context()) 540 __audit_ntp_log(ad); 541 } 542 543 static inline void audit_log_nfcfg(const char *name, u8 af, 544 unsigned int nentries, 545 enum audit_nfcfgop op, gfp_t gfp) 546 { 547 if (audit_enabled) 548 __audit_log_nfcfg(name, af, nentries, op, gfp); 549 } 550 551 extern int audit_n_rules; 552 extern int audit_signals; 553 #else /* CONFIG_AUDITSYSCALL */ 554 static inline int audit_alloc(struct task_struct *task) 555 { 556 return 0; 557 } 558 static inline void audit_free(struct task_struct *task) 559 { } 560 static inline void audit_syscall_entry(int major, unsigned long a0, 561 unsigned long a1, unsigned long a2, 562 unsigned long a3) 563 { } 564 static inline void audit_syscall_exit(void *pt_regs) 565 { } 566 static inline bool audit_dummy_context(void) 567 { 568 return true; 569 } 570 static inline void audit_set_context(struct task_struct *task, struct audit_context *ctx) 571 { } 572 static inline struct audit_context *audit_context(void) 573 { 574 return NULL; 575 } 576 static inline struct filename *audit_reusename(const __user char *name) 577 { 578 return NULL; 579 } 580 static inline void audit_getname(struct filename *name) 581 { } 582 static inline void audit_inode(struct filename *name, 583 const struct dentry *dentry, 584 unsigned int aflags) 585 { } 586 static inline void audit_file(struct file *file) 587 { 588 } 589 static inline void audit_inode_parent_hidden(struct filename *name, 590 const struct dentry *dentry) 591 { } 592 static inline void audit_inode_child(struct inode *parent, 593 const struct dentry *dentry, 594 const unsigned char type) 595 { } 596 static inline void audit_core_dumps(long signr) 597 { } 598 static inline void audit_seccomp(unsigned long syscall, long signr, int code) 599 { } 600 static inline void audit_seccomp_actions_logged(const char *names, 601 const char *old_names, int res) 602 { } 603 static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp) 604 { } 605 static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, 606 gid_t gid, umode_t mode) 607 { } 608 static inline void audit_bprm(struct linux_binprm *bprm) 609 { } 610 static inline int audit_socketcall(int nargs, unsigned long *args) 611 { 612 return 0; 613 } 614 615 static inline int audit_socketcall_compat(int nargs, u32 *args) 616 { 617 return 0; 618 } 619 620 static inline void audit_fd_pair(int fd1, int fd2) 621 { } 622 static inline int audit_sockaddr(int len, void *addr) 623 { 624 return 0; 625 } 626 static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr) 627 { } 628 static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, 629 unsigned int msg_prio, 630 const struct timespec64 *abs_timeout) 631 { } 632 static inline void audit_mq_notify(mqd_t mqdes, 633 const struct sigevent *notification) 634 { } 635 static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat) 636 { } 637 static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm, 638 const struct cred *new, 639 const struct cred *old) 640 { 641 return 0; 642 } 643 static inline void audit_log_capset(const struct cred *new, 644 const struct cred *old) 645 { } 646 static inline void audit_mmap_fd(int fd, int flags) 647 { } 648 649 static inline void audit_log_kern_module(char *name) 650 { 651 } 652 653 static inline void audit_fanotify(unsigned int response) 654 { } 655 656 static inline void audit_tk_injoffset(struct timespec64 offset) 657 { } 658 659 static inline void audit_ntp_init(struct audit_ntp_data *ad) 660 { } 661 662 static inline void audit_ntp_set_old(struct audit_ntp_data *ad, 663 enum audit_ntp_type type, long long val) 664 { } 665 666 static inline void audit_ntp_set_new(struct audit_ntp_data *ad, 667 enum audit_ntp_type type, long long val) 668 { } 669 670 static inline void audit_ntp_log(const struct audit_ntp_data *ad) 671 { } 672 673 static inline void audit_ptrace(struct task_struct *t) 674 { } 675 676 static inline void audit_log_nfcfg(const char *name, u8 af, 677 unsigned int nentries, 678 enum audit_nfcfgop op, gfp_t gfp) 679 { } 680 681 #define audit_n_rules 0 682 #define audit_signals 0 683 #endif /* CONFIG_AUDITSYSCALL */ 684 685 static inline bool audit_loginuid_set(struct task_struct *tsk) 686 { 687 return uid_valid(audit_get_loginuid(tsk)); 688 } 689 690 static inline void audit_log_string(struct audit_buffer *ab, const char *buf) 691 { 692 audit_log_n_string(ab, buf, strlen(buf)); 693 } 694 695 #endif 696