xref: /openbmc/linux/include/linux/audit.h (revision 9d56dd3b083a3bec56e9da35ce07baca81030b03)
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 
257 enum {
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 
317 struct 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 
328 struct 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  */
336 struct 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  */
352 struct 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 
364 struct audit_sig_info {
365 	uid_t		uid;
366 	pid_t		pid;
367 	char		ctx[0];
368 };
369 
370 struct audit_buffer;
371 struct audit_context;
372 struct inode;
373 struct netlink_skb_parms;
374 struct linux_binprm;
375 struct mq_attr;
376 struct mqstat;
377 struct audit_watch;
378 struct audit_tree;
379 
380 struct 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 
399 struct 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 )
411 extern int __init audit_register_class(int class, unsigned *list);
412 extern int audit_classify_syscall(int abi, unsigned syscall);
413 extern int audit_classify_arch(int arch);
414 #ifdef CONFIG_AUDITSYSCALL
415 /* These are defined in auditsc.c */
416 				/* Public API */
417 extern void audit_finish_fork(struct task_struct *child);
418 extern int  audit_alloc(struct task_struct *task);
419 extern void audit_free(struct task_struct *task);
420 extern void audit_syscall_entry(int arch,
421 				int major, unsigned long a0, unsigned long a1,
422 				unsigned long a2, unsigned long a3);
423 extern void audit_syscall_exit(int failed, long return_code);
424 extern void __audit_getname(const char *name);
425 extern void audit_putname(const char *name);
426 extern void __audit_inode(const char *name, const struct dentry *dentry);
427 extern void __audit_inode_child(const char *dname, const struct dentry *dentry,
428 				const struct inode *parent);
429 extern void __audit_ptrace(struct task_struct *t);
430 
431 static inline int audit_dummy_context(void)
432 {
433 	void *p = current->audit_context;
434 	return !p || *(int *)p;
435 }
436 static inline void audit_getname(const char *name)
437 {
438 	if (unlikely(!audit_dummy_context()))
439 		__audit_getname(name);
440 }
441 static inline void audit_inode(const char *name, const struct dentry *dentry) {
442 	if (unlikely(!audit_dummy_context()))
443 		__audit_inode(name, dentry);
444 }
445 static 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 }
451 void audit_core_dumps(long signr);
452 
453 static 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) */
460 extern unsigned int audit_serial(void);
461 extern int auditsc_get_stamp(struct audit_context *ctx,
462 			      struct timespec *t, unsigned int *serial);
463 extern 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)
466 extern void audit_log_task_context(struct audit_buffer *ab);
467 extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp);
468 extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode);
469 extern int audit_bprm(struct linux_binprm *bprm);
470 extern void audit_socketcall(int nargs, unsigned long *args);
471 extern int audit_sockaddr(int len, void *addr);
472 extern void __audit_fd_pair(int fd1, int fd2);
473 extern int audit_set_macxattr(const char *name);
474 extern void __audit_mq_open(int oflag, mode_t mode, struct mq_attr *attr);
475 extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout);
476 extern void __audit_mq_notify(mqd_t mqdes, const struct sigevent *notification);
477 extern void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat);
478 extern int __audit_log_bprm_fcaps(struct linux_binprm *bprm,
479 				  const struct cred *new,
480 				  const struct cred *old);
481 extern void __audit_log_capset(pid_t pid, const struct cred *new, const struct cred *old);
482 
483 static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp)
484 {
485 	if (unlikely(!audit_dummy_context()))
486 		__audit_ipc_obj(ipcp);
487 }
488 static inline void audit_fd_pair(int fd1, int fd2)
489 {
490 	if (unlikely(!audit_dummy_context()))
491 		__audit_fd_pair(fd1, fd2);
492 }
493 static 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 }
498 static 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 }
503 static 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 }
508 static 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 }
513 static 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 
519 static 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 
528 static 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 
535 extern int audit_n_rules;
536 extern 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 */
576 extern void		    audit_log(struct audit_context *ctx, gfp_t gfp_mask,
577 				      int type, const char *fmt, ...)
578 				      __attribute__((format(printf,4,5)));
579 
580 extern struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, int type);
581 extern void		    audit_log_format(struct audit_buffer *ab,
582 					     const char *fmt, ...)
583 			    __attribute__((format(printf,2,3)));
584 extern void		    audit_log_end(struct audit_buffer *ab);
585 extern int		    audit_string_contains_control(const char *string,
586 							  size_t len);
587 extern void		    audit_log_n_hex(struct audit_buffer *ab,
588 					  const unsigned char *buf,
589 					  size_t len);
590 extern 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));
594 extern void		    audit_log_n_untrustedstring(struct audit_buffer *ab,
595 							const char *string,
596 							size_t n);
597 extern void		    audit_log_untrustedstring(struct audit_buffer *ab,
598 						      const char *string);
599 extern void		    audit_log_d_path(struct audit_buffer *ab,
600 					     const char *prefix,
601 					     struct path *path);
602 extern void		    audit_log_key(struct audit_buffer *ab,
603 					  char *key);
604 extern void		    audit_log_lost(const char *message);
605 extern int		    audit_update_lsm_rules(void);
606 
607 				/* Private API (for audit.c only) */
608 extern int audit_filter_user(struct netlink_skb_parms *cb);
609 extern int audit_filter_type(int type);
610 extern int  audit_receive_filter(int type, int pid, int uid, int seq,
611 				void *data, size_t datasz, uid_t loginuid,
612 				u32 sessionid, u32 sid);
613 extern int audit_enabled;
614 #else
615 #define audit_log(c,g,t,f,...) do { ; } while (0)
616 #define audit_log_start(c,g,t) ({ NULL; })
617 #define audit_log_vformat(b,f,a) do { ; } while (0)
618 #define audit_log_format(b,f,...) do { ; } while (0)
619 #define audit_log_end(b) do { ; } while (0)
620 #define audit_log_n_hex(a,b,l) do { ; } while (0)
621 #define audit_log_n_string(a,c,l) do { ; } while (0)
622 #define audit_log_string(a,c) do { ; } while (0)
623 #define audit_log_n_untrustedstring(a,n,s) do { ; } while (0)
624 #define audit_log_untrustedstring(a,s) do { ; } while (0)
625 #define audit_log_d_path(b, p, d) do { ; } while (0)
626 #define audit_log_key(b, k) do { ; } while (0)
627 #define audit_enabled 0
628 #endif
629 #endif
630 #endif
631