LXR linux/include/linux/audit.h

   1/* audit.h -- Auditing support
   2 *
   3 * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina.
   4 * All Rights Reserved.
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as published by
   8 * the Free Software Foundation; either version 2 of the License, or
   9 * (at your option) any later version.
  10 *
  11 * This program is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, write to the Free Software
  18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19 *
  20 * Written by Rickard E. (Rik) Faith <faith@redhat.com>
  21 *
  22 */
  23
  24#ifndef _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 - 1999 future kernel use (maybe integrity labels and related events)
  40 * 2000 is for otherwise unclassified kernel audit messages (legacy)
  41 * 2001 - 2099 unused (kernel)
  42 * 2100 - 2199 user space anomaly records
  43 * 2200 - 2299 user space actions taken in response to anomalies
  44 * 2300 - 2399 user space generated LSPP events
  45 * 2400 - 2499 user space crypto events
  46 * 2500 - 2999 future user space (maybe integrity labels and related events)
  47 *
  48 * Messages from 1000-1199 are bi-directional. 1200-1299 & 2100 - 2999 are
  49 * exclusively user space. 1300-2099 is kernel --> user space 
  50 * communication.
  51 */
  52#define AUDIT_GET               1000    /* Get status */
  53#define AUDIT_SET               1001    /* Set status (enable/disable/auditd) */
  54#define AUDIT_LIST              1002    /* List syscall rules -- deprecated */
  55#define AUDIT_ADD               1003    /* Add syscall rule -- deprecated */
  56#define AUDIT_DEL               1004    /* Delete syscall rule -- deprecated */
  57#define AUDIT_USER              1005    /* Message from userspace -- deprecated */
  58#define AUDIT_LOGIN             1006    /* Define the login id and information */
  59#define AUDIT_WATCH_INS         1007    /* Insert file/dir watch entry */
  60#define AUDIT_WATCH_REM         1008    /* Remove file/dir watch entry */
  61#define AUDIT_WATCH_LIST        1009    /* List all file/dir watches */
  62#define AUDIT_SIGNAL_INFO       1010    /* Get info about sender of signal to auditd */
  63#define AUDIT_ADD_RULE          1011    /* Add syscall filtering rule */
  64#define AUDIT_DEL_RULE          1012    /* Delete syscall filtering rule */
  65#define AUDIT_LIST_RULES        1013    /* List syscall filtering rules */
  66#define AUDIT_TRIM              1014    /* Trim junk from watched tree */
  67#define AUDIT_MAKE_EQUIV        1015    /* Append to watched tree */
  68#define AUDIT_TTY_GET           1016    /* Get TTY auditing status */
  69#define AUDIT_TTY_SET           1017    /* Set TTY auditing status */
  70
  71#define AUDIT_FIRST_USER_MSG    1100    /* Userspace messages mostly uninteresting to kernel */
  72#define AUDIT_USER_AVC          1107    /* We filter this differently */
  73#define AUDIT_USER_TTY          1124    /* Non-ICANON TTY input meaning */
  74#define AUDIT_LAST_USER_MSG     1199
  75#define AUDIT_FIRST_USER_MSG2   2100    /* More user space messages */
  76#define AUDIT_LAST_USER_MSG2    2999
  77 
  78#define AUDIT_DAEMON_START      1200    /* Daemon startup record */
  79#define AUDIT_DAEMON_END        1201    /* Daemon normal stop record */
  80#define AUDIT_DAEMON_ABORT      1202    /* Daemon error stop record */
  81#define AUDIT_DAEMON_CONFIG     1203    /* Daemon config change */
  82
  83#define AUDIT_SYSCALL           1300    /* Syscall event */
  84/* #define AUDIT_FS_WATCH       1301     * Deprecated */
  85#define AUDIT_PATH              1302    /* Filename path information */
  86#define AUDIT_IPC               1303    /* IPC record */
  87#define AUDIT_SOCKETCALL        1304    /* sys_socketcall arguments */
  88#define AUDIT_CONFIG_CHANGE     1305    /* Audit system configuration change */
  89#define AUDIT_SOCKADDR          1306    /* sockaddr copied as syscall arg */
  90#define AUDIT_CWD               1307    /* Current working directory */
  91#define AUDIT_EXECVE            1309    /* execve arguments */
  92#define AUDIT_IPC_SET_PERM      1311    /* IPC new permissions record type */
  93#define AUDIT_MQ_OPEN           1312    /* POSIX MQ open record type */
  94#define AUDIT_MQ_SENDRECV       1313    /* POSIX MQ send/receive record type */
  95#define AUDIT_MQ_NOTIFY         1314    /* POSIX MQ notify record type */
  96#define AUDIT_MQ_GETSETATTR     1315    /* POSIX MQ get/set attribute record type */
  97#define AUDIT_KERNEL_OTHER      1316    /* For use by 3rd party modules */
  98#define AUDIT_FD_PAIR           1317    /* audit record for pipe/socketpair */
  99#define AUDIT_OBJ_PID           1318    /* ptrace target */
 100#define AUDIT_TTY               1319    /* Input on an administrative TTY */
 101#define AUDIT_EOE               1320    /* End of multi-record event */
 102
 103#define AUDIT_AVC               1400    /* SE Linux avc denial or grant */
 104#define AUDIT_SELINUX_ERR       1401    /* Internal SE Linux Errors */
 105#define AUDIT_AVC_PATH          1402    /* dentry, vfsmount pair from avc */
 106#define AUDIT_MAC_POLICY_LOAD   1403    /* Policy file load */
 107#define AUDIT_MAC_STATUS        1404    /* Changed enforcing,permissive,off */
 108#define AUDIT_MAC_CONFIG_CHANGE 1405    /* Changes to booleans */
 109#define AUDIT_MAC_UNLBL_ALLOW   1406    /* NetLabel: allow unlabeled traffic */
 110#define AUDIT_MAC_CIPSOV4_ADD   1407    /* NetLabel: add CIPSOv4 DOI entry */
 111#define AUDIT_MAC_CIPSOV4_DEL   1408    /* NetLabel: del CIPSOv4 DOI entry */
 112#define AUDIT_MAC_MAP_ADD       1409    /* NetLabel: add LSM domain mapping */
 113#define AUDIT_MAC_MAP_DEL       1410    /* NetLabel: del LSM domain mapping */
 114#define AUDIT_MAC_IPSEC_ADDSA   1411    /* Not used */
 115#define AUDIT_MAC_IPSEC_DELSA   1412    /* Not used  */
 116#define AUDIT_MAC_IPSEC_ADDSPD  1413    /* Not used */
 117#define AUDIT_MAC_IPSEC_DELSPD  1414    /* Not used */
 118#define AUDIT_MAC_IPSEC_EVENT   1415    /* Audit an IPSec event */
 119#define AUDIT_MAC_UNLBL_STCADD  1416    /* NetLabel: add a static label */
 120#define AUDIT_MAC_UNLBL_STCDEL  1417    /* NetLabel: del a static label */
 121
 122#define AUDIT_FIRST_KERN_ANOM_MSG   1700
 123#define AUDIT_LAST_KERN_ANOM_MSG    1799
 124#define AUDIT_ANOM_PROMISCUOUS      1700 /* Device changed promiscuous mode */
 125#define AUDIT_ANOM_ABEND            1701 /* Process ended abnormally */
 126
 127#define AUDIT_KERNEL            2000    /* Asynchronous audit record. NOT A REQUEST. */
 128
 129/* Rule flags */
 130#define AUDIT_FILTER_USER       0x00    /* Apply rule to user-generated messages */
 131#define AUDIT_FILTER_TASK       0x01    /* Apply rule at task creation (not syscall) */
 132#define AUDIT_FILTER_ENTRY      0x02    /* Apply rule at syscall entry */
 133#define AUDIT_FILTER_WATCH      0x03    /* Apply rule to file system watches */
 134#define AUDIT_FILTER_EXIT       0x04    /* Apply rule at syscall exit */
 135#define AUDIT_FILTER_TYPE       0x05    /* Apply rule at audit_log_start */
 136
 137#define AUDIT_NR_FILTERS        6
 138
 139#define AUDIT_FILTER_PREPEND    0x10    /* Prepend to front of list */
 140
 141/* Rule actions */
 142#define AUDIT_NEVER    0        /* Do not build context if rule matches */
 143#define AUDIT_POSSIBLE 1        /* Build context if rule matches  */
 144#define AUDIT_ALWAYS   2        /* Generate audit record if rule matches */
 145
 146/* Rule structure sizes -- if these change, different AUDIT_ADD and
 147 * AUDIT_LIST commands must be implemented. */
 148#define AUDIT_MAX_FIELDS   64
 149#define AUDIT_MAX_KEY_LEN  256
 150#define AUDIT_BITMASK_SIZE 64
 151#define AUDIT_WORD(nr) ((__u32)((nr)/32))
 152#define AUDIT_BIT(nr)  (1 << ((nr) - AUDIT_WORD(nr)*32))
 153
 154#define AUDIT_SYSCALL_CLASSES 16
 155#define AUDIT_CLASS_DIR_WRITE 0
 156#define AUDIT_CLASS_DIR_WRITE_32 1
 157#define AUDIT_CLASS_CHATTR 2
 158#define AUDIT_CLASS_CHATTR_32 3
 159#define AUDIT_CLASS_READ 4
 160#define AUDIT_CLASS_READ_32 5
 161#define AUDIT_CLASS_WRITE 6
 162#define AUDIT_CLASS_WRITE_32 7
 163#define AUDIT_CLASS_SIGNAL 8
 164#define AUDIT_CLASS_SIGNAL_32 9
 165
 166/* This bitmask is used to validate user input.  It represents all bits that
 167 * are currently used in an audit field constant understood by the kernel.
 168 * If you are adding a new #define AUDIT_<whatever>, please ensure that
 169 * AUDIT_UNUSED_BITS is updated if need be. */
 170#define AUDIT_UNUSED_BITS       0x07FFFC00
 171
 172
 173/* Rule fields */
 174                                /* These are useful when checking the
 175                                 * task structure at task creation time
 176                                 * (AUDIT_PER_TASK).  */
 177#define AUDIT_PID       0
 178#define AUDIT_UID       1
 179#define AUDIT_EUID      2
 180#define AUDIT_SUID      3
 181#define AUDIT_FSUID     4
 182#define AUDIT_GID       5
 183#define AUDIT_EGID      6
 184#define AUDIT_SGID      7
 185#define AUDIT_FSGID     8
 186#define AUDIT_LOGINUID  9
 187#define AUDIT_PERS      10
 188#define AUDIT_ARCH      11
 189#define AUDIT_MSGTYPE   12
 190#define AUDIT_SUBJ_USER 13      /* security label user */
 191#define AUDIT_SUBJ_ROLE 14      /* security label role */
 192#define AUDIT_SUBJ_TYPE 15      /* security label type */
 193#define AUDIT_SUBJ_SEN  16      /* security label sensitivity label */
 194#define AUDIT_SUBJ_CLR  17      /* security label clearance label */
 195#define AUDIT_PPID      18
 196#define AUDIT_OBJ_USER  19
 197#define AUDIT_OBJ_ROLE  20
 198#define AUDIT_OBJ_TYPE  21
 199#define AUDIT_OBJ_LEV_LOW       22
 200#define AUDIT_OBJ_LEV_HIGH      23
 201
 202                                /* These are ONLY useful when checking
 203                                 * at syscall exit time (AUDIT_AT_EXIT). */
 204#define AUDIT_DEVMAJOR  100
 205#define AUDIT_DEVMINOR  101
 206#define AUDIT_INODE     102
 207#define AUDIT_EXIT      103
 208#define AUDIT_SUCCESS   104     /* exit >= 0; value ignored */
 209#define AUDIT_WATCH     105
 210#define AUDIT_PERM      106
 211#define AUDIT_DIR       107
 212#define AUDIT_FILETYPE  108
 213
 214#define AUDIT_ARG0      200
 215#define AUDIT_ARG1      (AUDIT_ARG0+1)
 216#define AUDIT_ARG2      (AUDIT_ARG0+2)
 217#define AUDIT_ARG3      (AUDIT_ARG0+3)
 218
 219#define AUDIT_FILTERKEY 210
 220
 221#define AUDIT_NEGATE                    0x80000000
 222
 223/* These are the supported operators.
 224 *      4  2  1  8
 225 *      =  >  <  ?
 226 *      ----------
 227 *      0  0  0  0      00      nonsense
 228 *      0  0  0  1      08      &  bit mask
 229 *      0  0  1  0      10      <
 230 *      0  1  0  0      20      >
 231 *      0  1  1  0      30      !=
 232 *      1  0  0  0      40      =
 233 *      1  0  0  1      48      &=  bit test
 234 *      1  0  1  0      50      <=
 235 *      1  1  0  0      60      >=
 236 *      1  1  1  1      78      all operators
 237 */
 238#define AUDIT_BIT_MASK                  0x08000000
 239#define AUDIT_LESS_THAN                 0x10000000
 240#define AUDIT_GREATER_THAN              0x20000000
 241#define AUDIT_NOT_EQUAL                 0x30000000
 242#define AUDIT_EQUAL                     0x40000000
 243#define AUDIT_BIT_TEST                  (AUDIT_BIT_MASK|AUDIT_EQUAL)
 244#define AUDIT_LESS_THAN_OR_EQUAL        (AUDIT_LESS_THAN|AUDIT_EQUAL)
 245#define AUDIT_GREATER_THAN_OR_EQUAL     (AUDIT_GREATER_THAN|AUDIT_EQUAL)
 246#define AUDIT_OPERATORS                 (AUDIT_EQUAL|AUDIT_NOT_EQUAL|AUDIT_BIT_MASK)
 247
 248/* Status symbols */
 249                                /* Mask values */
 250#define AUDIT_STATUS_ENABLED            0x0001
 251#define AUDIT_STATUS_FAILURE            0x0002
 252#define AUDIT_STATUS_PID                0x0004
 253#define AUDIT_STATUS_RATE_LIMIT         0x0008
 254#define AUDIT_STATUS_BACKLOG_LIMIT      0x0010
 255                                /* Failure-to-log actions */
 256#define AUDIT_FAIL_SILENT       0
 257#define AUDIT_FAIL_PRINTK       1
 258#define AUDIT_FAIL_PANIC        2
 259
 260/* distinguish syscall tables */
 261#define __AUDIT_ARCH_64BIT 0x80000000
 262#define __AUDIT_ARCH_LE    0x40000000
 263#define AUDIT_ARCH_ALPHA        (EM_ALPHA|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
 264#define AUDIT_ARCH_ARM          (EM_ARM|__AUDIT_ARCH_LE)
 265#define AUDIT_ARCH_ARMEB        (EM_ARM)
 266#define AUDIT_ARCH_CRIS         (EM_CRIS|__AUDIT_ARCH_LE)
 267#define AUDIT_ARCH_FRV          (EM_FRV)
 268#define AUDIT_ARCH_H8300        (EM_H8_300)
 269#define AUDIT_ARCH_I386         (EM_386|__AUDIT_ARCH_LE)
 270#define AUDIT_ARCH_IA64         (EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
 271#define AUDIT_ARCH_M32R         (EM_M32R)
 272#define AUDIT_ARCH_M68K         (EM_68K)
 273#define AUDIT_ARCH_MIPS         (EM_MIPS)
 274#define AUDIT_ARCH_MIPSEL       (EM_MIPS|__AUDIT_ARCH_LE)
 275#define AUDIT_ARCH_MIPS64       (EM_MIPS|__AUDIT_ARCH_64BIT)
 276#define AUDIT_ARCH_MIPSEL64     (EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
 277#define AUDIT_ARCH_PARISC       (EM_PARISC)
 278#define AUDIT_ARCH_PARISC64     (EM_PARISC|__AUDIT_ARCH_64BIT)
 279#define AUDIT_ARCH_PPC          (EM_PPC)
 280#define AUDIT_ARCH_PPC64        (EM_PPC64|__AUDIT_ARCH_64BIT)
 281#define AUDIT_ARCH_S390         (EM_S390)
 282#define AUDIT_ARCH_S390X        (EM_S390|__AUDIT_ARCH_64BIT)
 283#define AUDIT_ARCH_SH           (EM_SH)
 284#define AUDIT_ARCH_SHEL         (EM_SH|__AUDIT_ARCH_LE)
 285#define AUDIT_ARCH_SH64         (EM_SH|__AUDIT_ARCH_64BIT)
 286#define AUDIT_ARCH_SHEL64       (EM_SH|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
 287#define AUDIT_ARCH_SPARC        (EM_SPARC)
 288#define AUDIT_ARCH_SPARC64      (EM_SPARCV9|__AUDIT_ARCH_64BIT)
 289#define AUDIT_ARCH_V850         (EM_V850|__AUDIT_ARCH_LE)
 290#define AUDIT_ARCH_X86_64       (EM_X86_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
 291
 292#define AUDIT_PERM_EXEC         1
 293#define AUDIT_PERM_WRITE        2
 294#define AUDIT_PERM_READ         4
 295#define AUDIT_PERM_ATTR         8
 296
 297struct audit_status {
 298        __u32           mask;           /* Bit mask for valid entries */
 299        __u32           enabled;        /* 1 = enabled, 0 = disabled */
 300        __u32           failure;        /* Failure-to-log action */
 301        __u32           pid;            /* pid of auditd process */
 302        __u32           rate_limit;     /* messages rate limit (per second) */
 303        __u32           backlog_limit;  /* waiting messages limit */
 304        __u32           lost;           /* messages lost */
 305        __u32           backlog;        /* messages waiting in queue */
 306};
 307
 308struct audit_tty_status {
 309        __u32           enabled; /* 1 = enabled, 0 = disabled */
 310};
 311
 312/* audit_rule_data supports filter rules with both integer and string
 313 * fields.  It corresponds with AUDIT_ADD_RULE, AUDIT_DEL_RULE and
 314 * AUDIT_LIST_RULES requests.
 315 */
 316struct audit_rule_data {
 317        __u32           flags;  /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */
 318        __u32           action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */
 319        __u32           field_count;
 320        __u32           mask[AUDIT_BITMASK_SIZE]; /* syscall(s) affected */
 321        __u32           fields[AUDIT_MAX_FIELDS];
 322        __u32           values[AUDIT_MAX_FIELDS];
 323        __u32           fieldflags[AUDIT_MAX_FIELDS];
 324        __u32           buflen; /* total length of string fields */
 325        char            buf[0]; /* string fields buffer */
 326};
 327
 328/* audit_rule is supported to maintain backward compatibility with
 329 * userspace.  It supports integer fields only and corresponds to
 330 * AUDIT_ADD, AUDIT_DEL and AUDIT_LIST requests.
 331 */
 332struct audit_rule {             /* for AUDIT_LIST, AUDIT_ADD, and AUDIT_DEL */
 333        __u32           flags;  /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */
 334        __u32           action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */
 335        __u32           field_count;
 336        __u32           mask[AUDIT_BITMASK_SIZE];
 337        __u32           fields[AUDIT_MAX_FIELDS];
 338        __u32           values[AUDIT_MAX_FIELDS];
 339};
 340
 341#ifdef __KERNEL__
 342#include <linux/sched.h>
 343
 344struct audit_sig_info {
 345        uid_t           uid;
 346        pid_t           pid;
 347        char            ctx[0];
 348};
 349
 350struct audit_buffer;
 351struct audit_context;
 352struct inode;
 353struct netlink_skb_parms;
 354struct linux_binprm;
 355struct mq_attr;
 356struct mqstat;
 357struct audit_watch;
 358struct audit_tree;
 359
 360struct audit_krule {
 361        int                     vers_ops;
 362        u32                     flags;
 363        u32                     listnr;
 364        u32                     action;
 365        u32                     mask[AUDIT_BITMASK_SIZE];
 366        u32                     buflen; /* for data alloc on list rules */
 367        u32                     field_count;
 368        char                    *filterkey; /* ties events to rules */
 369        struct audit_field      *fields;
 370        struct audit_field      *arch_f; /* quick access to arch field */
 371        struct audit_field      *inode_f; /* quick access to an inode field */
 372        struct audit_watch      *watch; /* associated watch */
 373        struct audit_tree       *tree;  /* associated watched tree */
 374        struct list_head        rlist;  /* entry in audit_{watch,tree}.rules list */
 375};
 376
 377struct audit_field {
 378        u32                             type;
 379        u32                             val;
 380        u32                             op;
 381        char                            *lsm_str;
 382        void                            *lsm_rule;
 383};
 384
 385#define AUDITSC_INVALID 0
 386#define AUDITSC_SUCCESS 1
 387#define AUDITSC_FAILURE 2
 388#define AUDITSC_RESULT(x) ( ((long)(x))<0?AUDITSC_FAILURE:AUDITSC_SUCCESS )
 389extern int __init audit_register_class(int class, unsigned *list);
 390extern int audit_classify_syscall(int abi, unsigned syscall);
 391extern int audit_classify_arch(int arch);
 392#ifdef CONFIG_AUDITSYSCALL
 393/* These are defined in auditsc.c */
 394                                /* Public API */
 395extern int  audit_alloc(struct task_struct *task);
 396extern void audit_free(struct task_struct *task);
 397extern void audit_syscall_entry(int arch,
 398                                int major, unsigned long a0, unsigned long a1,
 399                                unsigned long a2, unsigned long a3);
 400extern void audit_syscall_exit(int failed, long return_code);
 401extern void __audit_getname(const char *name);
 402extern void audit_putname(const char *name);
 403extern void __audit_inode(const char *name, const struct dentry *dentry);
 404extern void __audit_inode_child(const char *dname, const struct dentry *dentry,
 405                                const struct inode *parent);
 406extern void __audit_ptrace(struct task_struct *t);
 407
 408static inline int audit_dummy_context(void)
 409{
 410        void *p = current->audit_context;
 411        return !p || *(int *)p;
 412}
 413static inline void audit_getname(const char *name)
 414{
 415        if (unlikely(!audit_dummy_context()))
 416                __audit_getname(name);
 417}
 418static inline void audit_inode(const char *name, const struct dentry *dentry) {
 419        if (unlikely(!audit_dummy_context()))
 420                __audit_inode(name, dentry);
 421}
 422static inline void audit_inode_child(const char *dname, 
 423                                     const struct dentry *dentry,
 424                                     const struct inode *parent) {
 425        if (unlikely(!audit_dummy_context()))
 426                __audit_inode_child(dname, dentry, parent);
 427}
 428void audit_core_dumps(long signr);
 429
 430static inline void audit_ptrace(struct task_struct *t)
 431{
 432        if (unlikely(!audit_dummy_context()))
 433                __audit_ptrace(t);
 434}
 435
 436                                /* Private API (for audit.c only) */
 437extern unsigned int audit_serial(void);
 438extern void auditsc_get_stamp(struct audit_context *ctx,
 439                              struct timespec *t, unsigned int *serial);
 440extern int  audit_set_loginuid(struct task_struct *task, uid_t loginuid);
 441#define audit_get_loginuid(t) ((t)->loginuid)
 442#define audit_get_sessionid(t) ((t)->sessionid)
 443extern void audit_log_task_context(struct audit_buffer *ab);
 444extern int __audit_ipc_obj(struct kern_ipc_perm *ipcp);
 445extern int __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode);
 446extern int audit_bprm(struct linux_binprm *bprm);
 447extern int audit_socketcall(int nargs, unsigned long *args);
 448extern int audit_sockaddr(int len, void *addr);
 449extern int __audit_fd_pair(int fd1, int fd2);
 450extern int audit_set_macxattr(const char *name);
 451extern int __audit_mq_open(int oflag, mode_t mode, struct mq_attr __user *u_attr);
 452extern int __audit_mq_timedsend(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec __user *u_abs_timeout);
 453extern int __audit_mq_timedreceive(mqd_t mqdes, size_t msg_len, unsigned int __user *u_msg_prio, const struct timespec __user *u_abs_timeout);
 454extern int __audit_mq_notify(mqd_t mqdes, const struct sigevent __user *u_notification);
 455extern int __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat);
 456
 457static inline int audit_ipc_obj(struct kern_ipc_perm *ipcp)
 458{
 459        if (unlikely(!audit_dummy_context()))
 460                return __audit_ipc_obj(ipcp);
 461        return 0;
 462}
 463static inline int audit_fd_pair(int fd1, int fd2)
 464{
 465        if (unlikely(!audit_dummy_context()))
 466                return __audit_fd_pair(fd1, fd2);
 467        return 0;
 468}
 469static inline int audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode)
 470{
 471        if (unlikely(!audit_dummy_context()))
 472                return __audit_ipc_set_perm(qbytes, uid, gid, mode);
 473        return 0;
 474}
 475static inline int audit_mq_open(int oflag, mode_t mode, struct mq_attr __user *u_attr)
 476{
 477        if (unlikely(!audit_dummy_context()))
 478                return __audit_mq_open(oflag, mode, u_attr);
 479        return 0;
 480}
 481static inline int audit_mq_timedsend(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec __user *u_abs_timeout)
 482{
 483        if (unlikely(!audit_dummy_context()))
 484                return __audit_mq_timedsend(mqdes, msg_len, msg_prio, u_abs_timeout);
 485        return 0;
 486}
 487static inline int audit_mq_timedreceive(mqd_t mqdes, size_t msg_len, unsigned int __user *u_msg_prio, const struct timespec __user *u_abs_timeout)
 488{
 489        if (unlikely(!audit_dummy_context()))
 490                return __audit_mq_timedreceive(mqdes, msg_len, u_msg_prio, u_abs_timeout);
 491        return 0;
 492}
 493static inline int audit_mq_notify(mqd_t mqdes, const struct sigevent __user *u_notification)
 494{
 495        if (unlikely(!audit_dummy_context()))
 496                return __audit_mq_notify(mqdes, u_notification);
 497        return 0;
 498}
 499static inline int audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
 500{
 501        if (unlikely(!audit_dummy_context()))
 502                return __audit_mq_getsetattr(mqdes, mqstat);
 503        return 0;
 504}
 505extern int audit_n_rules;
 506extern int audit_signals;
 507#else
 508#define audit_alloc(t) ({ 0; })
 509#define audit_free(t) do { ; } while (0)
 510#define audit_syscall_entry(ta,a,b,c,d,e) do { ; } while (0)
 511#define audit_syscall_exit(f,r) do { ; } while (0)
 512#define audit_dummy_context() 1
 513#define audit_getname(n) do { ; } while (0)
 514#define audit_putname(n) do { ; } while (0)
 515#define __audit_inode(n,d) do { ; } while (0)
 516#define __audit_inode_child(d,i,p) do { ; } while (0)
 517#define audit_inode(n,d) do { ; } while (0)
 518#define audit_inode_child(d,i,p) do { ; } while (0)
 519#define audit_core_dumps(i) do { ; } while (0)
 520#define auditsc_get_stamp(c,t,s) do { BUG(); } while (0)
 521#define audit_get_loginuid(t) (-1)
 522#define audit_get_sessionid(t) (-1)
 523#define audit_log_task_context(b) do { ; } while (0)
 524#define audit_ipc_obj(i) ({ 0; })
 525#define audit_ipc_set_perm(q,u,g,m) ({ 0; })
 526#define audit_bprm(p) ({ 0; })
 527#define audit_socketcall(n,a) ({ 0; })
 528#define audit_fd_pair(n,a) ({ 0; })
 529#define audit_sockaddr(len, addr) ({ 0; })
 530#define audit_set_macxattr(n) do { ; } while (0)
 531#define audit_mq_open(o,m,a) ({ 0; })
 532#define audit_mq_timedsend(d,l,p,t) ({ 0; })
 533#define audit_mq_timedreceive(d,l,p,t) ({ 0; })
 534#define audit_mq_notify(d,n) ({ 0; })
 535#define audit_mq_getsetattr(d,s) ({ 0; })
 536#define audit_ptrace(t) ((void)0)
 537#define audit_n_rules 0
 538#define audit_signals 0
 539#endif
 540
 541#ifdef CONFIG_AUDIT
 542/* These are defined in audit.c */
 543                                /* Public API */
 544extern void                 audit_log(struct audit_context *ctx, gfp_t gfp_mask,
 545                                      int type, const char *fmt, ...)
 546                                      __attribute__((format(printf,4,5)));
 547
 548extern struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, int type);
 549extern void                 audit_log_format(struct audit_buffer *ab,
 550                                             const char *fmt, ...)
 551                            __attribute__((format(printf,2,3)));
 552extern void                 audit_log_end(struct audit_buffer *ab);
 553extern int                  audit_string_contains_control(const char *string,
 554                                                          size_t len);
 555extern void                 audit_log_n_hex(struct audit_buffer *ab,
 556                                          const unsigned char *buf,
 557                                          size_t len);
 558extern void                 audit_log_n_string(struct audit_buffer *ab,
 559                                               const char *buf,
 560                                               size_t n);
 561#define audit_log_string(a,b) audit_log_n_string(a, b, strlen(b));
 562extern void                 audit_log_n_untrustedstring(struct audit_buffer *ab,
 563                                                        const char *string,
 564                                                        size_t n);
 565extern void                 audit_log_untrustedstring(struct audit_buffer *ab,
 566                                                      const char *string);
 567extern void                 audit_log_d_path(struct audit_buffer *ab,
 568                                             const char *prefix,
 569                                             struct path *path);
 570extern void                 audit_log_lost(const char *message);
 571extern int                  audit_update_lsm_rules(void);
 572
 573                                /* Private API (for audit.c only) */
 574extern int audit_filter_user(struct netlink_skb_parms *cb);
 575extern int audit_filter_type(int type);
 576extern int  audit_receive_filter(int type, int pid, int uid, int seq,
 577                                void *data, size_t datasz, uid_t loginuid,
 578                                u32 sessionid, u32 sid);
 579extern int audit_enabled;
 580#else
 581#define audit_log(c,g,t,f,...) do { ; } while (0)
 582#define audit_log_start(c,g,t) ({ NULL; })
 583#define audit_log_vformat(b,f,a) do { ; } while (0)
 584#define audit_log_format(b,f,...) do { ; } while (0)
 585#define audit_log_end(b) do { ; } while (0)
 586#define audit_log_n_hex(a,b,l) do { ; } while (0)
 587#define audit_log_n_string(a,c,l) do { ; } while (0)
 588#define audit_log_string(a,c) do { ; } while (0)
 589#define audit_log_n_untrustedstring(a,n,s) do { ; } while (0)
 590#define audit_log_untrustedstring(a,s) do { ; } while (0)
 591#define audit_log_d_path(b, p, d) do { ; } while (0)
 592#define audit_enabled 0
 593#endif
 594#endif
 595#endif
 596