include/linux/audit.h

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