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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 - 1899 kernel integrity events
40 * 1900 - 1999 future kernel use
41 * 2000 is for otherwise unclassified kernel audit messages (legacy)
42 * 2001 - 2099 unused (kernel)
43 * 2100 - 2199 user space anomaly records
44 * 2200 - 2299 user space actions taken in response to anomalies
45 * 2300 - 2399 user space generated LSPP events
46 * 2400 - 2499 user space crypto events
47 * 2500 - 2999 future user space (maybe integrity labels and related events)
48 *
49 * Messages from 1000-1199 are bi-directional. 1200-1299 & 2100 - 2999 are
50 * exclusively user space. 1300-2099 is kernel --> user space
51 * communication.
52 */
53#define AUDIT_GET 1000 /* Get status */
54#define AUDIT_SET 1001 /* Set status (enable/disable/auditd) */
55#define AUDIT_LIST 1002 /* List syscall rules -- deprecated */
56#define AUDIT_ADD 1003 /* Add syscall rule -- deprecated */
57#define AUDIT_DEL 1004 /* Delete syscall rule -- deprecated */
58#define AUDIT_USER 1005 /* Message from userspace -- deprecated */
59#define AUDIT_LOGIN 1006 /* Define the login id and information */
60#define AUDIT_WATCH_INS 1007 /* Insert file/dir watch entry */
61#define AUDIT_WATCH_REM 1008 /* Remove file/dir watch entry */
62#define AUDIT_WATCH_LIST 1009 /* List all file/dir watches */
63#define AUDIT_SIGNAL_INFO 1010 /* Get info about sender of signal to auditd */
64#define AUDIT_ADD_RULE 1011 /* Add syscall filtering rule */
65#define AUDIT_DEL_RULE 1012 /* Delete syscall filtering rule */
66#define AUDIT_LIST_RULES 1013 /* List syscall filtering rules */
67#define AUDIT_TRIM 1014 /* Trim junk from watched tree */
68#define AUDIT_MAKE_EQUIV 1015 /* Append to watched tree */
69#define AUDIT_TTY_GET 1016 /* Get TTY auditing status */
70#define AUDIT_TTY_SET 1017 /* Set TTY auditing status */
71
72#define AUDIT_FIRST_USER_MSG 1100 /* Userspace messages mostly uninteresting to kernel */
73#define AUDIT_USER_AVC 1107 /* We filter this differently */
74#define AUDIT_USER_TTY 1124 /* Non-ICANON TTY input meaning */
75#define AUDIT_LAST_USER_MSG 1199
76#define AUDIT_FIRST_USER_MSG2 2100 /* More user space messages */
77#define AUDIT_LAST_USER_MSG2 2999
78
79#define AUDIT_DAEMON_START 1200 /* Daemon startup record */
80#define AUDIT_DAEMON_END 1201 /* Daemon normal stop record */
81#define AUDIT_DAEMON_ABORT 1202 /* Daemon error stop record */
82#define AUDIT_DAEMON_CONFIG 1203 /* Daemon config change */
83
84#define AUDIT_SYSCALL 1300 /* Syscall event */
85/* #define AUDIT_FS_WATCH 1301 * Deprecated */
86#define AUDIT_PATH 1302 /* Filename path information */
87#define AUDIT_IPC 1303 /* IPC record */
88#define AUDIT_SOCKETCALL 1304 /* sys_socketcall arguments */
89#define AUDIT_CONFIG_CHANGE 1305 /* Audit system configuration change */
90#define AUDIT_SOCKADDR 1306 /* sockaddr copied as syscall arg */
91#define AUDIT_CWD 1307 /* Current working directory */
92#define AUDIT_EXECVE 1309 /* execve arguments */
93#define AUDIT_IPC_SET_PERM 1311 /* IPC new permissions record type */
94#define AUDIT_MQ_OPEN 1312 /* POSIX MQ open record type */
95#define AUDIT_MQ_SENDRECV 1313 /* POSIX MQ send/receive record type */
96#define AUDIT_MQ_NOTIFY 1314 /* POSIX MQ notify record type */
97#define AUDIT_MQ_GETSETATTR 1315 /* POSIX MQ get/set attribute record type */
98#define AUDIT_KERNEL_OTHER 1316 /* For use by 3rd party modules */
99#define AUDIT_FD_PAIR 1317 /* audit record for pipe/socketpair */
100#define AUDIT_OBJ_PID 1318 /* ptrace target */
101#define AUDIT_TTY 1319 /* Input on an administrative TTY */
102#define AUDIT_EOE 1320 /* End of multi-record event */
103#define AUDIT_BPRM_FCAPS 1321 /* Information about fcaps increasing perms */
104#define AUDIT_CAPSET 1322 /* Record showing argument to sys_capset */
105
106#define AUDIT_AVC 1400 /* SE Linux avc denial or grant */
107#define AUDIT_SELINUX_ERR 1401 /* Internal SE Linux Errors */
108#define AUDIT_AVC_PATH 1402 /* dentry, vfsmount pair from avc */
109#define AUDIT_MAC_POLICY_LOAD 1403 /* Policy file load */
110#define AUDIT_MAC_STATUS 1404 /* Changed enforcing,permissive,off */
111#define AUDIT_MAC_CONFIG_CHANGE 1405 /* Changes to booleans */
112#define AUDIT_MAC_UNLBL_ALLOW 1406 /* NetLabel: allow unlabeled traffic */
113#define AUDIT_MAC_CIPSOV4_ADD 1407 /* NetLabel: add CIPSOv4 DOI entry */
114#define AUDIT_MAC_CIPSOV4_DEL 1408 /* NetLabel: del CIPSOv4 DOI entry */
115#define AUDIT_MAC_MAP_ADD 1409 /* NetLabel: add LSM domain mapping */
116#define AUDIT_MAC_MAP_DEL 1410 /* NetLabel: del LSM domain mapping */
117#define AUDIT_MAC_IPSEC_ADDSA 1411 /* Not used */
118#define AUDIT_MAC_IPSEC_DELSA 1412 /* Not used */
119#define AUDIT_MAC_IPSEC_ADDSPD 1413 /* Not used */
120#define AUDIT_MAC_IPSEC_DELSPD 1414 /* Not used */
121#define AUDIT_MAC_IPSEC_EVENT 1415 /* Audit an IPSec event */
122#define AUDIT_MAC_UNLBL_STCADD 1416 /* NetLabel: add a static label */
123#define AUDIT_MAC_UNLBL_STCDEL 1417 /* NetLabel: del a static label */
124
125#define AUDIT_FIRST_KERN_ANOM_MSG 1700
126#define AUDIT_LAST_KERN_ANOM_MSG 1799
127#define AUDIT_ANOM_PROMISCUOUS 1700 /* Device changed promiscuous mode */
128#define AUDIT_ANOM_ABEND 1701 /* Process ended abnormally */
129#define AUDIT_INTEGRITY_DATA 1800 /* Data integrity verification */
130#define AUDIT_INTEGRITY_METADATA 1801 /* Metadata integrity verification */
131#define AUDIT_INTEGRITY_STATUS 1802 /* Integrity enable status */
132#define AUDIT_INTEGRITY_HASH 1803 /* Integrity HASH type */
133#define AUDIT_INTEGRITY_PCR 1804 /* PCR invalidation msgs */
134#define AUDIT_INTEGRITY_RULE 1805 /* policy rule */
135
136#define AUDIT_KERNEL 2000 /* Asynchronous audit record. NOT A REQUEST. */
137
138/* Rule flags */
139#define AUDIT_FILTER_USER 0x00 /* Apply rule to user-generated messages */
140#define AUDIT_FILTER_TASK 0x01 /* Apply rule at task creation (not syscall) */
141#define AUDIT_FILTER_ENTRY 0x02 /* Apply rule at syscall entry */
142#define AUDIT_FILTER_WATCH 0x03 /* Apply rule to file system watches */
143#define AUDIT_FILTER_EXIT 0x04 /* Apply rule at syscall exit */
144#define AUDIT_FILTER_TYPE 0x05 /* Apply rule at audit_log_start */
145
146#define AUDIT_NR_FILTERS 6
147
148#define AUDIT_FILTER_PREPEND 0x10 /* Prepend to front of list */
149
150/* Rule actions */
151#define AUDIT_NEVER 0 /* Do not build context if rule matches */
152#define AUDIT_POSSIBLE 1 /* Build context if rule matches */
153#define AUDIT_ALWAYS 2 /* Generate audit record if rule matches */
154
155/* Rule structure sizes -- if these change, different AUDIT_ADD and
156 * AUDIT_LIST commands must be implemented. */
157#define AUDIT_MAX_FIELDS 64
158#define AUDIT_MAX_KEY_LEN 256
159#define AUDIT_BITMASK_SIZE 64
160#define AUDIT_WORD(nr) ((__u32)((nr)/32))
161#define AUDIT_BIT(nr) (1 << ((nr) - AUDIT_WORD(nr)*32))
162
163#define AUDIT_SYSCALL_CLASSES 16
164#define AUDIT_CLASS_DIR_WRITE 0
165#define AUDIT_CLASS_DIR_WRITE_32 1
166#define AUDIT_CLASS_CHATTR 2
167#define AUDIT_CLASS_CHATTR_32 3
168#define AUDIT_CLASS_READ 4
169#define AUDIT_CLASS_READ_32 5
170#define AUDIT_CLASS_WRITE 6
171#define AUDIT_CLASS_WRITE_32 7
172#define AUDIT_CLASS_SIGNAL 8
173#define AUDIT_CLASS_SIGNAL_32 9
174
175/* This bitmask is used to validate user input. It represents all bits that
176 * are currently used in an audit field constant understood by the kernel.
177 * If you are adding a new #define AUDIT_<whatever>, please ensure that
178 * AUDIT_UNUSED_BITS is updated if need be. */
179#define AUDIT_UNUSED_BITS 0x07FFFC00
180
181
182/* Rule fields */
183 /* These are useful when checking the
184 * task structure at task creation time
185 * (AUDIT_PER_TASK). */
186#define AUDIT_PID 0
187#define AUDIT_UID 1
188#define AUDIT_EUID 2
189#define AUDIT_SUID 3
190#define AUDIT_FSUID 4
191#define AUDIT_GID 5
192#define AUDIT_EGID 6
193#define AUDIT_SGID 7
194#define AUDIT_FSGID 8
195#define AUDIT_LOGINUID 9
196#define AUDIT_PERS 10
197#define AUDIT_ARCH 11
198#define AUDIT_MSGTYPE 12
199#define AUDIT_SUBJ_USER 13 /* security label user */
200#define AUDIT_SUBJ_ROLE 14 /* security label role */
201#define AUDIT_SUBJ_TYPE 15 /* security label type */
202#define AUDIT_SUBJ_SEN 16 /* security label sensitivity label */
203#define AUDIT_SUBJ_CLR 17 /* security label clearance label */
204#define AUDIT_PPID 18
205#define AUDIT_OBJ_USER 19
206#define AUDIT_OBJ_ROLE 20
207#define AUDIT_OBJ_TYPE 21
208#define AUDIT_OBJ_LEV_LOW 22
209#define AUDIT_OBJ_LEV_HIGH 23
210
211 /* These are ONLY useful when checking
212 * at syscall exit time (AUDIT_AT_EXIT). */
213#define AUDIT_DEVMAJOR 100
214#define AUDIT_DEVMINOR 101
215#define AUDIT_INODE 102
216#define AUDIT_EXIT 103
217#define AUDIT_SUCCESS 104 /* exit >= 0; value ignored */
218#define AUDIT_WATCH 105
219#define AUDIT_PERM 106
220#define AUDIT_DIR 107
221#define AUDIT_FILETYPE 108
222
223#define AUDIT_ARG0 200
224#define AUDIT_ARG1 (AUDIT_ARG0+1)
225#define AUDIT_ARG2 (AUDIT_ARG0+2)
226#define AUDIT_ARG3 (AUDIT_ARG0+3)
227
228#define AUDIT_FILTERKEY 210
229
230#define AUDIT_NEGATE 0x80000000
231
232/* These are the supported operators.
233 * 4 2 1 8
234 * = > < ?
235 * ----------
236 * 0 0 0 0 00 nonsense
237 * 0 0 0 1 08 & bit mask
238 * 0 0 1 0 10 <
239 * 0 1 0 0 20 >
240 * 0 1 1 0 30 !=
241 * 1 0 0 0 40 =
242 * 1 0 0 1 48 &= bit test
243 * 1 0 1 0 50 <=
244 * 1 1 0 0 60 >=
245 * 1 1 1 1 78 all operators
246 */
247#define AUDIT_BIT_MASK 0x08000000
248#define AUDIT_LESS_THAN 0x10000000
249#define AUDIT_GREATER_THAN 0x20000000
250#define AUDIT_NOT_EQUAL 0x30000000
251#define AUDIT_EQUAL 0x40000000
252#define AUDIT_BIT_TEST (AUDIT_BIT_MASK|AUDIT_EQUAL)
253#define AUDIT_LESS_THAN_OR_EQUAL (AUDIT_LESS_THAN|AUDIT_EQUAL)
254#define AUDIT_GREATER_THAN_OR_EQUAL (AUDIT_GREATER_THAN|AUDIT_EQUAL)
255#define AUDIT_OPERATORS (AUDIT_EQUAL|AUDIT_NOT_EQUAL|AUDIT_BIT_MASK)
256
257enum {
258 Audit_equal,
259 Audit_not_equal,
260 Audit_bitmask,
261 Audit_bittest,
262 Audit_lt,
263 Audit_gt,
264 Audit_le,
265 Audit_ge,
266 Audit_bad
267};
268
269/* Status symbols */
270 /* Mask values */
271#define AUDIT_STATUS_ENABLED 0x0001
272#define AUDIT_STATUS_FAILURE 0x0002
273#define AUDIT_STATUS_PID 0x0004
274#define AUDIT_STATUS_RATE_LIMIT 0x0008
275#define AUDIT_STATUS_BACKLOG_LIMIT 0x0010
276 /* Failure-to-log actions */
277#define AUDIT_FAIL_SILENT 0
278#define AUDIT_FAIL_PRINTK 1
279#define AUDIT_FAIL_PANIC 2
280
281/* distinguish syscall tables */
282#define __AUDIT_ARCH_64BIT 0x80000000
283#define __AUDIT_ARCH_LE 0x40000000
284#define AUDIT_ARCH_ALPHA (EM_ALPHA|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
285#define AUDIT_ARCH_ARM (EM_ARM|__AUDIT_ARCH_LE)
286#define AUDIT_ARCH_ARMEB (EM_ARM)
287#define AUDIT_ARCH_CRIS (EM_CRIS|__AUDIT_ARCH_LE)
288#define AUDIT_ARCH_FRV (EM_FRV)
289#define AUDIT_ARCH_H8300 (EM_H8_300)
290#define AUDIT_ARCH_I386 (EM_386|__AUDIT_ARCH_LE)
291#define AUDIT_ARCH_IA64 (EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
292#define AUDIT_ARCH_M32R (EM_M32R)
293#define AUDIT_ARCH_M68K (EM_68K)
294#define AUDIT_ARCH_MIPS (EM_MIPS)
295#define AUDIT_ARCH_MIPSEL (EM_MIPS|__AUDIT_ARCH_LE)
296#define AUDIT_ARCH_MIPS64 (EM_MIPS|__AUDIT_ARCH_64BIT)
297#define AUDIT_ARCH_MIPSEL64 (EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
298#define AUDIT_ARCH_PARISC (EM_PARISC)
299#define AUDIT_ARCH_PARISC64 (EM_PARISC|__AUDIT_ARCH_64BIT)
300#define AUDIT_ARCH_PPC (EM_PPC)
301#define AUDIT_ARCH_PPC64 (EM_PPC64|__AUDIT_ARCH_64BIT)
302#define AUDIT_ARCH_S390 (EM_S390)
303#define AUDIT_ARCH_S390X (EM_S390|__AUDIT_ARCH_64BIT)
304#define AUDIT_ARCH_SH (EM_SH)
305#define AUDIT_ARCH_SHEL (EM_SH|__AUDIT_ARCH_LE)
306#define AUDIT_ARCH_SH64 (EM_SH|__AUDIT_ARCH_64BIT)
307#define AUDIT_ARCH_SHEL64 (EM_SH|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
308#define AUDIT_ARCH_SPARC (EM_SPARC)
309#define AUDIT_ARCH_SPARC64 (EM_SPARCV9|__AUDIT_ARCH_64BIT)
310#define AUDIT_ARCH_X86_64 (EM_X86_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
311
312#define AUDIT_PERM_EXEC 1
313#define AUDIT_PERM_WRITE 2
314#define AUDIT_PERM_READ 4
315#define AUDIT_PERM_ATTR 8
316
317struct audit_status {
318 __u32 mask; /* Bit mask for valid entries */
319 __u32 enabled; /* 1 = enabled, 0 = disabled */
320 __u32 failure; /* Failure-to-log action */
321 __u32 pid; /* pid of auditd process */
322 __u32 rate_limit; /* messages rate limit (per second) */
323 __u32 backlog_limit; /* waiting messages limit */
324 __u32 lost; /* messages lost */
325 __u32 backlog; /* messages waiting in queue */
326};
327
328struct audit_tty_status {
329 __u32 enabled; /* 1 = enabled, 0 = disabled */
330};
331
332/* audit_rule_data supports filter rules with both integer and string
333 * fields. It corresponds with AUDIT_ADD_RULE, AUDIT_DEL_RULE and
334 * AUDIT_LIST_RULES requests.
335 */
336struct audit_rule_data {
337 __u32 flags; /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */
338 __u32 action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */
339 __u32 field_count;
340 __u32 mask[AUDIT_BITMASK_SIZE]; /* syscall(s) affected */
341 __u32 fields[AUDIT_MAX_FIELDS];
342 __u32 values[AUDIT_MAX_FIELDS];
343 __u32 fieldflags[AUDIT_MAX_FIELDS];
344 __u32 buflen; /* total length of string fields */
345 char buf[0]; /* string fields buffer */
346};
347
348/* audit_rule is supported to maintain backward compatibility with
349 * userspace. It supports integer fields only and corresponds to
350 * AUDIT_ADD, AUDIT_DEL and AUDIT_LIST requests.
351 */
352struct audit_rule { /* for AUDIT_LIST, AUDIT_ADD, and AUDIT_DEL */
353 __u32 flags; /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */
354 __u32 action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */
355 __u32 field_count;
356 __u32 mask[AUDIT_BITMASK_SIZE];
357 __u32 fields[AUDIT_MAX_FIELDS];
358 __u32 values[AUDIT_MAX_FIELDS];
359};
360
361#ifdef __KERNEL__
362#include <linux/sched.h>
363
364struct audit_sig_info {
365 uid_t uid;
366 pid_t pid;
367 char ctx[0];
368};
369
370struct audit_buffer;
371struct audit_context;
372struct inode;
373struct netlink_skb_parms;
374struct linux_binprm;
375struct mq_attr;
376struct mqstat;
377struct audit_watch;
378struct audit_tree;
379
380struct audit_krule {
381 int vers_ops;
382 u32 flags;
383 u32 listnr;
384 u32 action;
385 u32 mask[AUDIT_BITMASK_SIZE];
386 u32 buflen; /* for data alloc on list rules */
387 u32 field_count;
388 char *filterkey; /* ties events to rules */
389 struct audit_field *fields;
390 struct audit_field *arch_f; /* quick access to arch field */
391 struct audit_field *inode_f; /* quick access to an inode field */
392 struct audit_watch *watch; /* associated watch */
393 struct audit_tree *tree; /* associated watched tree */
394 struct list_head rlist; /* entry in audit_{watch,tree}.rules list */
395 struct list_head list; /* for AUDIT_LIST* purposes only */
396 u64 prio;
397};
398
399struct audit_field {
400 u32 type;
401 u32 val;
402 u32 op;
403 char *lsm_str;
404 void *lsm_rule;
405};
406
407#define AUDITSC_INVALID 0
408#define AUDITSC_SUCCESS 1
409#define AUDITSC_FAILURE 2
410#define AUDITSC_RESULT(x) ( ((long)(x))<0?AUDITSC_FAILURE:AUDITSC_SUCCESS )
411extern int __init audit_register_class(int class, unsigned *list);
412extern int audit_classify_syscall(int abi, unsigned syscall);
413extern int audit_classify_arch(int arch);
414#ifdef CONFIG_AUDITSYSCALL
415/* These are defined in auditsc.c */
416 /* Public API */
417extern void audit_finish_fork(struct task_struct *child);
418extern int audit_alloc(struct task_struct *task);
419extern void audit_free(struct task_struct *task);
420extern void audit_syscall_entry(int arch,
421 int major, unsigned long a0, unsigned long a1,
422 unsigned long a2, unsigned long a3);
423extern void audit_syscall_exit(int failed, long return_code);
424extern void __audit_getname(const char *name);
425extern void audit_putname(const char *name);
426extern void __audit_inode(const char *name, const struct dentry *dentry);
427extern void __audit_inode_child(const char *dname, const struct dentry *dentry,
428 const struct inode *parent);
429extern void __audit_ptrace(struct task_struct *t);
430
431static inline int audit_dummy_context(void)
432{
433 void *p = current->audit_context;
434 return !p || *(int *)p;
435}
436static inline void audit_getname(const char *name)
437{
438 if (unlikely(!audit_dummy_context()))
439 __audit_getname(name);
440}
441static inline void audit_inode(const char *name, const struct dentry *dentry) {
442 if (unlikely(!audit_dummy_context()))
443 __audit_inode(name, dentry);
444}
445static inline void audit_inode_child(const char *dname,
446 const struct dentry *dentry,
447 const struct inode *parent) {
448 if (unlikely(!audit_dummy_context()))
449 __audit_inode_child(dname, dentry, parent);
450}
451void audit_core_dumps(long signr);
452
453static inline void audit_ptrace(struct task_struct *t)
454{
455 if (unlikely(!audit_dummy_context()))
456 __audit_ptrace(t);
457}
458
459 /* Private API (for audit.c only) */
460extern unsigned int audit_serial(void);
461extern int auditsc_get_stamp(struct audit_context *ctx,
462 struct timespec *t, unsigned int *serial);
463extern int audit_set_loginuid(struct task_struct *task, uid_t loginuid);
464#define audit_get_loginuid(t) ((t)->loginuid)
465#define audit_get_sessionid(t) ((t)->sessionid)
466extern void audit_log_task_context(struct audit_buffer *ab);
467extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp);
468extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode);
469extern int audit_bprm(struct linux_binprm *bprm);
470extern void audit_socketcall(int nargs, unsigned long *args);
471extern int audit_sockaddr(int len, void *addr);
472extern void __audit_fd_pair(int fd1, int fd2);
473extern int audit_set_macxattr(const char *name);
474extern void __audit_mq_open(int oflag, mode_t mode, struct mq_attr *attr);
475extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout);
476extern void __audit_mq_notify(mqd_t mqdes, const struct sigevent *notification);
477extern void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat);
478extern int __audit_log_bprm_fcaps(struct linux_binprm *bprm,
479 const struct cred *new,
480 const struct cred *old);
481extern void __audit_log_capset(pid_t pid, const struct cred *new, const struct cred *old);
482
483static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp)
484{
485 if (unlikely(!audit_dummy_context()))
486 __audit_ipc_obj(ipcp);
487}
488static inline void audit_fd_pair(int fd1, int fd2)
489{
490 if (unlikely(!audit_dummy_context()))
491 __audit_fd_pair(fd1, fd2);
492}
493static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode)
494{
495 if (unlikely(!audit_dummy_context()))
496 __audit_ipc_set_perm(qbytes, uid, gid, mode);
497}
498static inline void audit_mq_open(int oflag, mode_t mode, struct mq_attr *attr)
499{
500 if (unlikely(!audit_dummy_context()))
501 __audit_mq_open(oflag, mode, attr);
502}
503static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout)
504{
505 if (unlikely(!audit_dummy_context()))
506 __audit_mq_sendrecv(mqdes, msg_len, msg_prio, abs_timeout);
507}
508static inline void audit_mq_notify(mqd_t mqdes, const struct sigevent *notification)
509{
510 if (unlikely(!audit_dummy_context()))
511 __audit_mq_notify(mqdes, notification);
512}
513static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
514{
515 if (unlikely(!audit_dummy_context()))
516 __audit_mq_getsetattr(mqdes, mqstat);
517}
518
519static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm,
520 const struct cred *new,
521 const struct cred *old)
522{
523 if (unlikely(!audit_dummy_context()))
524 return __audit_log_bprm_fcaps(bprm, new, old);
525 return 0;
526}
527
528static inline void audit_log_capset(pid_t pid, const struct cred *new,
529 const struct cred *old)
530{
531 if (unlikely(!audit_dummy_context()))
532 __audit_log_capset(pid, new, old);
533}
534
535extern int audit_n_rules;
536extern int audit_signals;
537#else
538#define audit_finish_fork(t)
539#define audit_alloc(t) ({ 0; })
540#define audit_free(t) do { ; } while (0)
541#define audit_syscall_entry(ta,a,b,c,d,e) do { ; } while (0)
542#define audit_syscall_exit(f,r) do { ; } while (0)
543#define audit_dummy_context() 1
544#define audit_getname(n) do { ; } while (0)
545#define audit_putname(n) do { ; } while (0)
546#define __audit_inode(n,d) do { ; } while (0)
547#define __audit_inode_child(d,i,p) do { ; } while (0)
548#define audit_inode(n,d) do { ; } while (0)
549#define audit_inode_child(d,i,p) do { ; } while (0)
550#define audit_core_dumps(i) do { ; } while (0)
551#define auditsc_get_stamp(c,t,s) (0)
552#define audit_get_loginuid(t) (-1)
553#define audit_get_sessionid(t) (-1)
554#define audit_log_task_context(b) do { ; } while (0)
555#define audit_ipc_obj(i) ((void)0)
556#define audit_ipc_set_perm(q,u,g,m) ((void)0)
557#define audit_bprm(p) ({ 0; })
558#define audit_socketcall(n,a) ((void)0)
559#define audit_fd_pair(n,a) ((void)0)
560#define audit_sockaddr(len, addr) ({ 0; })
561#define audit_set_macxattr(n) do { ; } while (0)
562#define audit_mq_open(o,m,a) ((void)0)
563#define audit_mq_sendrecv(d,l,p,t) ((void)0)
564#define audit_mq_notify(d,n) ((void)0)
565#define audit_mq_getsetattr(d,s) ((void)0)
566#define audit_log_bprm_fcaps(b, ncr, ocr) ({ 0; })
567#define audit_log_capset(pid, ncr, ocr) ((void)0)
568#define audit_ptrace(t) ((void)0)
569#define audit_n_rules 0
570#define audit_signals 0
571#endif
572
573#ifdef CONFIG_AUDIT
574/* These are defined in audit.c */
575 /* Public API */
576extern void audit_log(struct audit_context *ctx, gfp_t gfp_mask,
577 int type, const char *fmt, ...)
578 __attribute__((format(printf,4,5)));
579
580extern struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, int type);
581extern void audit_log_format(struct audit_buffer *ab,
582 const char *fmt, ...)
583 __attribute__((format(printf,2,3)));
584extern void audit_log_end(struct audit_buffer *ab);
585extern int audit_string_contains_control(const char *string,
586 size_t len);
587extern void audit_log_n_hex(struct audit_buffer *ab,
588 const unsigned char *buf,
589 size_t len);
590extern void audit_log_n_string(struct audit_buffer *ab,
591 const char *buf,
592 size_t n);
593#define audit_log_string(a,b) audit_log_n_string(a, b, strlen(b));
594extern void audit_log_n_untrustedstring(struct audit_buffer *ab,
595 const char *string,
596 size_t n);
597extern void audit_log_untrustedstring(struct audit_buffer *ab,
598 const char *string);
599extern void audit_log_d_path(struct audit_buffer *ab,
600 const char *prefix,
601 struct path *path);
602extern void audit_log_lost(const char *message);
603extern int audit_update_lsm_rules(void);
604
605 /* Private API (for audit.c only) */
606extern int audit_filter_user(struct netlink_skb_parms *cb);
607extern int audit_filter_type(int type);
608extern int audit_receive_filter(int type, int pid, int uid, int seq,
609 void *data, size_t datasz, uid_t loginuid,
610 u32 sessionid, u32 sid);
611extern int audit_enabled;
612#else
613#define audit_log(c,g,t,f,...) do { ; } while (0)
614#define audit_log_start(c,g,t) ({ NULL; })
615#define audit_log_vformat(b,f,a) do { ; } while (0)
616#define audit_log_format(b,f,...) do { ; } while (0)
617#define audit_log_end(b) do { ; } while (0)
618#define audit_log_n_hex(a,b,l) do { ; } while (0)
619#define audit_log_n_string(a,c,l) do { ; } while (0)
620#define audit_log_string(a,c) do { ; } while (0)
621#define audit_log_n_untrustedstring(a,n,s) do { ; } while (0)
622#define audit_log_untrustedstring(a,s) do { ; } while (0)
623#define audit_log_d_path(b, p, d) do { ; } while (0)
624#define audit_enabled 0
625#endif
626#endif
627#endif