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