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85c8721f | 1 | /* audit.h -- Auditing support |
1da177e4 LT |
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 | ||
3b46e650 | 27 | #include <linux/types.h> |
f001e47f | 28 | #include <linux/elf-em.h> |
2fd6f58b | 29 | |
c0404993 SG |
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 | |
90d526c0 SG |
36 | * 1500 - 1599 kernel LSPP events |
37 | * 1600 - 1699 kernel crypto events | |
5bdb9886 | 38 | * 1700 - 1799 kernel anomaly records |
523979ad MZ |
39 | * 1800 - 1899 kernel integrity events |
40 | * 1900 - 1999 future kernel use | |
90d526c0 SG |
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) | |
c0404993 | 48 | * |
90d526c0 SG |
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. | |
c0404993 | 52 | */ |
c2f0c7c3 SG |
53 | #define AUDIT_GET 1000 /* Get status */ |
54 | #define AUDIT_SET 1001 /* Set status (enable/disable/auditd) */ | |
93315ed6 AG |
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 */ | |
c0404993 | 58 | #define AUDIT_USER 1005 /* Message from userspace -- deprecated */ |
c2f0c7c3 | 59 | #define AUDIT_LOGIN 1006 /* Define the login id and information */ |
c0404993 SG |
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 */ | |
93315ed6 AG |
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 */ | |
74c3cbe3 AV |
67 | #define AUDIT_TRIM 1014 /* Trim junk from watched tree */ |
68 | #define AUDIT_MAKE_EQUIV 1015 /* Append to watched tree */ | |
6dc2c1b7 MT |
69 | #define AUDIT_TTY_GET 1016 /* Get TTY auditing status */ |
70 | #define AUDIT_TTY_SET 1017 /* Set TTY auditing status */ | |
c0404993 | 71 | |
4a4cd633 DW |
72 | #define AUDIT_FIRST_USER_MSG 1100 /* Userspace messages mostly uninteresting to kernel */ |
73 | #define AUDIT_USER_AVC 1107 /* We filter this differently */ | |
522ed776 | 74 | #define AUDIT_USER_TTY 1124 /* Non-ICANON TTY input meaning */ |
209aba03 | 75 | #define AUDIT_LAST_USER_MSG 1199 |
90d526c0 SG |
76 | #define AUDIT_FIRST_USER_MSG2 2100 /* More user space messages */ |
77 | #define AUDIT_LAST_USER_MSG2 2999 | |
c0404993 SG |
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 */ | |
c8e649ba | 85 | /* #define AUDIT_FS_WATCH 1301 * Deprecated */ |
8f37d47c | 86 | #define AUDIT_PATH 1302 /* Filename path information */ |
c0404993 | 87 | #define AUDIT_IPC 1303 /* IPC record */ |
3ec3b2fb | 88 | #define AUDIT_SOCKETCALL 1304 /* sys_socketcall arguments */ |
c0404993 | 89 | #define AUDIT_CONFIG_CHANGE 1305 /* Audit system configuration change */ |
3ec3b2fb | 90 | #define AUDIT_SOCKADDR 1306 /* sockaddr copied as syscall arg */ |
8f37d47c | 91 | #define AUDIT_CWD 1307 /* Current working directory */ |
473ae30b | 92 | #define AUDIT_EXECVE 1309 /* execve arguments */ |
073115d6 | 93 | #define AUDIT_IPC_SET_PERM 1311 /* IPC new permissions record type */ |
20ca73bc GW |
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 */ | |
c8e649ba | 98 | #define AUDIT_KERNEL_OTHER 1316 /* For use by 3rd party modules */ |
db349509 | 99 | #define AUDIT_FD_PAIR 1317 /* audit record for pipe/socketpair */ |
a5cb013d | 100 | #define AUDIT_OBJ_PID 1318 /* ptrace target */ |
522ed776 | 101 | #define AUDIT_TTY 1319 /* Input on an administrative TTY */ |
c0641f28 | 102 | #define AUDIT_EOE 1320 /* End of multi-record event */ |
3fc689e9 | 103 | #define AUDIT_BPRM_FCAPS 1321 /* Information about fcaps increasing perms */ |
e68b75a0 | 104 | #define AUDIT_CAPSET 1322 /* Record showing argument to sys_capset */ |
c0404993 SG |
105 | |
106 | #define AUDIT_AVC 1400 /* SE Linux avc denial or grant */ | |
107 | #define AUDIT_SELINUX_ERR 1401 /* Internal SE Linux Errors */ | |
01116105 | 108 | #define AUDIT_AVC_PATH 1402 /* dentry, vfsmount pair from avc */ |
af601e46 SG |
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 */ | |
95d4e6be PM |
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 */ | |
ab5f5e8b JL |
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 */ | |
13541b3a PM |
122 | #define AUDIT_MAC_UNLBL_STCADD 1416 /* NetLabel: add a static label */ |
123 | #define AUDIT_MAC_UNLBL_STCDEL 1417 /* NetLabel: del a static label */ | |
c2f0c7c3 | 124 | |
5bdb9886 SG |
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 */ | |
0a4ff8c2 | 128 | #define AUDIT_ANOM_ABEND 1701 /* Process ended abnormally */ |
3323eec9 MZ |
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 */ | |
523979ad | 134 | #define AUDIT_INTEGRITY_RULE 1805 /* policy rule */ |
5bdb9886 | 135 | |
c2f0c7c3 | 136 | #define AUDIT_KERNEL 2000 /* Asynchronous audit record. NOT A REQUEST. */ |
1da177e4 LT |
137 | |
138 | /* Rule flags */ | |
0f45aa18 DW |
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 */ | |
c8edc80c | 144 | #define AUDIT_FILTER_TYPE 0x05 /* Apply rule at audit_log_start */ |
0f45aa18 | 145 | |
c8edc80c | 146 | #define AUDIT_NR_FILTERS 6 |
0f45aa18 DW |
147 | |
148 | #define AUDIT_FILTER_PREPEND 0x10 /* Prepend to front of list */ | |
1da177e4 LT |
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 | |
a42da93c | 158 | #define AUDIT_MAX_KEY_LEN 256 |
1da177e4 LT |
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 | ||
b915543b AV |
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 | |
dc104fb3 AV |
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 | |
7f13da40 AG |
172 | #define AUDIT_CLASS_SIGNAL 8 |
173 | #define AUDIT_CLASS_SIGNAL_32 9 | |
b915543b | 174 | |
b63862f4 DK |
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. */ | |
74f2345b | 179 | #define AUDIT_UNUSED_BITS 0x07FFFC00 |
b63862f4 DK |
180 | |
181 | ||
1da177e4 LT |
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 | |
2fd6f58b | 197 | #define AUDIT_ARCH 11 |
c8edc80c | 198 | #define AUDIT_MSGTYPE 12 |
3a6b9f85 DG |
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 */ | |
3c66251e | 204 | #define AUDIT_PPID 18 |
3a6b9f85 DG |
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 | |
1da177e4 LT |
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 */ | |
f368c07d | 218 | #define AUDIT_WATCH 105 |
55669bfa | 219 | #define AUDIT_PERM 106 |
74c3cbe3 | 220 | #define AUDIT_DIR 107 |
8b67dca9 | 221 | #define AUDIT_FILETYPE 108 |
1da177e4 LT |
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 | ||
5adc8a6a AG |
228 | #define AUDIT_FILTERKEY 210 |
229 | ||
b63862f4 DK |
230 | #define AUDIT_NEGATE 0x80000000 |
231 | ||
232 | /* These are the supported operators. | |
74f2345b EP |
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 | |
b63862f4 | 246 | */ |
74f2345b | 247 | #define AUDIT_BIT_MASK 0x08000000 |
b63862f4 DK |
248 | #define AUDIT_LESS_THAN 0x10000000 |
249 | #define AUDIT_GREATER_THAN 0x20000000 | |
250 | #define AUDIT_NOT_EQUAL 0x30000000 | |
251 | #define AUDIT_EQUAL 0x40000000 | |
74f2345b | 252 | #define AUDIT_BIT_TEST (AUDIT_BIT_MASK|AUDIT_EQUAL) |
b63862f4 DK |
253 | #define AUDIT_LESS_THAN_OR_EQUAL (AUDIT_LESS_THAN|AUDIT_EQUAL) |
254 | #define AUDIT_GREATER_THAN_OR_EQUAL (AUDIT_GREATER_THAN|AUDIT_EQUAL) | |
74f2345b | 255 | #define AUDIT_OPERATORS (AUDIT_EQUAL|AUDIT_NOT_EQUAL|AUDIT_BIT_MASK) |
1da177e4 | 256 | |
5af75d8d AV |
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 | ||
1da177e4 LT |
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 | ||
2fd6f58b | 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) | |
f7ceba36 | 309 | #define AUDIT_ARCH_SPARC64 (EM_SPARCV9|__AUDIT_ARCH_64BIT) |
2fd6f58b | 310 | #define AUDIT_ARCH_X86_64 (EM_X86_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) |
311 | ||
55669bfa AV |
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 | ||
1da177e4 LT |
317 | struct audit_status { |
318 | __u32 mask; /* Bit mask for valid entries */ | |
23f32d18 | 319 | __u32 enabled; /* 1 = enabled, 0 = disabled */ |
1da177e4 LT |
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 | ||
522ed776 MT |
328 | struct audit_tty_status { |
329 | __u32 enabled; /* 1 = enabled, 0 = disabled */ | |
330 | }; | |
331 | ||
93315ed6 AG |
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; | |
5d330108 | 340 | __u32 mask[AUDIT_BITMASK_SIZE]; /* syscall(s) affected */ |
93315ed6 AG |
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 | */ | |
1da177e4 LT |
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__ | |
f001e47f | 362 | #include <linux/sched.h> |
1da177e4 | 363 | |
c2f0c7c3 SG |
364 | struct audit_sig_info { |
365 | uid_t uid; | |
366 | pid_t pid; | |
e1396065 | 367 | char ctx[0]; |
c2f0c7c3 SG |
368 | }; |
369 | ||
1da177e4 LT |
370 | struct audit_buffer; |
371 | struct audit_context; | |
372 | struct inode; | |
5bb289b5 | 373 | struct netlink_skb_parms; |
473ae30b | 374 | struct linux_binprm; |
20ca73bc GW |
375 | struct mq_attr; |
376 | struct mqstat; | |
9d57a7f9 AD |
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 */ | |
e45aa212 | 395 | struct list_head list; /* for AUDIT_LIST* purposes only */ |
0590b933 | 396 | u64 prio; |
9d57a7f9 AD |
397 | }; |
398 | ||
399 | struct audit_field { | |
400 | u32 type; | |
401 | u32 val; | |
402 | u32 op; | |
04305e4a AD |
403 | char *lsm_str; |
404 | void *lsm_rule; | |
9d57a7f9 | 405 | }; |
1da177e4 | 406 | |
2fd6f58b | 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 ) | |
b915543b | 411 | extern int __init audit_register_class(int class, unsigned *list); |
55669bfa | 412 | extern int audit_classify_syscall(int abi, unsigned syscall); |
e54dc243 | 413 | extern int audit_classify_arch(int arch); |
1da177e4 LT |
414 | #ifdef CONFIG_AUDITSYSCALL |
415 | /* These are defined in auditsc.c */ | |
416 | /* Public API */ | |
a64e6494 | 417 | extern void audit_finish_fork(struct task_struct *child); |
1da177e4 LT |
418 | extern int audit_alloc(struct task_struct *task); |
419 | extern void audit_free(struct task_struct *task); | |
5411be59 | 420 | extern void audit_syscall_entry(int arch, |
1da177e4 LT |
421 | int major, unsigned long a0, unsigned long a1, |
422 | unsigned long a2, unsigned long a3); | |
5411be59 | 423 | extern void audit_syscall_exit(int failed, long return_code); |
d8945bb5 | 424 | extern void __audit_getname(const char *name); |
1da177e4 | 425 | extern void audit_putname(const char *name); |
5a190ae6 AV |
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, | |
73d3ec5a | 428 | const struct inode *parent); |
a5cb013d AV |
429 | extern void __audit_ptrace(struct task_struct *t); |
430 | ||
d51374ad AV |
431 | static inline int audit_dummy_context(void) |
432 | { | |
433 | void *p = current->audit_context; | |
434 | return !p || *(int *)p; | |
435 | } | |
d8945bb5 AV |
436 | static inline void audit_getname(const char *name) |
437 | { | |
5ac3a9c2 | 438 | if (unlikely(!audit_dummy_context())) |
d8945bb5 AV |
439 | __audit_getname(name); |
440 | } | |
5a190ae6 | 441 | static inline void audit_inode(const char *name, const struct dentry *dentry) { |
5ac3a9c2 | 442 | if (unlikely(!audit_dummy_context())) |
5a190ae6 | 443 | __audit_inode(name, dentry); |
73241ccc AG |
444 | } |
445 | static inline void audit_inode_child(const char *dname, | |
5a190ae6 | 446 | const struct dentry *dentry, |
73d3ec5a | 447 | const struct inode *parent) { |
5ac3a9c2 | 448 | if (unlikely(!audit_dummy_context())) |
5a190ae6 | 449 | __audit_inode_child(dname, dentry, parent); |
73241ccc | 450 | } |
0a4ff8c2 | 451 | void audit_core_dumps(long signr); |
1da177e4 | 452 | |
a5cb013d AV |
453 | static inline void audit_ptrace(struct task_struct *t) |
454 | { | |
455 | if (unlikely(!audit_dummy_context())) | |
456 | __audit_ptrace(t); | |
457 | } | |
458 | ||
1da177e4 | 459 | /* Private API (for audit.c only) */ |
bfb4496e | 460 | extern unsigned int audit_serial(void); |
48887e63 | 461 | extern int auditsc_get_stamp(struct audit_context *ctx, |
bfb4496e | 462 | struct timespec *t, unsigned int *serial); |
456be6cd | 463 | extern int audit_set_loginuid(struct task_struct *task, uid_t loginuid); |
bfef93a5 | 464 | #define audit_get_loginuid(t) ((t)->loginuid) |
4746ec5b | 465 | #define audit_get_sessionid(t) ((t)->sessionid) |
161a09e7 | 466 | extern void audit_log_task_context(struct audit_buffer *ab); |
a33e6751 | 467 | extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp); |
e816f370 | 468 | extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode); |
473ae30b | 469 | extern int audit_bprm(struct linux_binprm *bprm); |
f3298dc4 | 470 | extern void audit_socketcall(int nargs, unsigned long *args); |
3ec3b2fb | 471 | extern int audit_sockaddr(int len, void *addr); |
157cf649 | 472 | extern void __audit_fd_pair(int fd1, int fd2); |
8c8570fb | 473 | extern int audit_set_macxattr(const char *name); |
564f6993 | 474 | extern void __audit_mq_open(int oflag, mode_t mode, struct mq_attr *attr); |
c32c8af4 | 475 | extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout); |
20114f71 | 476 | extern void __audit_mq_notify(mqd_t mqdes, const struct sigevent *notification); |
7392906e | 477 | extern void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat); |
d84f4f99 DH |
478 | extern int __audit_log_bprm_fcaps(struct linux_binprm *bprm, |
479 | const struct cred *new, | |
480 | const struct cred *old); | |
57f71a0a | 481 | extern void __audit_log_capset(pid_t pid, const struct cred *new, const struct cred *old); |
d8945bb5 | 482 | |
a33e6751 | 483 | static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp) |
d8945bb5 | 484 | { |
5ac3a9c2 | 485 | if (unlikely(!audit_dummy_context())) |
a33e6751 | 486 | __audit_ipc_obj(ipcp); |
db349509 | 487 | } |
157cf649 | 488 | static inline void audit_fd_pair(int fd1, int fd2) |
d8945bb5 | 489 | { |
5ac3a9c2 | 490 | if (unlikely(!audit_dummy_context())) |
157cf649 | 491 | __audit_fd_pair(fd1, fd2); |
d8945bb5 | 492 | } |
e816f370 | 493 | static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode) |
20ca73bc | 494 | { |
5ac3a9c2 | 495 | if (unlikely(!audit_dummy_context())) |
e816f370 | 496 | __audit_ipc_set_perm(qbytes, uid, gid, mode); |
20ca73bc | 497 | } |
564f6993 | 498 | static inline void audit_mq_open(int oflag, mode_t mode, struct mq_attr *attr) |
20ca73bc | 499 | { |
5ac3a9c2 | 500 | if (unlikely(!audit_dummy_context())) |
564f6993 | 501 | __audit_mq_open(oflag, mode, attr); |
20ca73bc | 502 | } |
c32c8af4 | 503 | static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout) |
20ca73bc | 504 | { |
5ac3a9c2 | 505 | if (unlikely(!audit_dummy_context())) |
c32c8af4 | 506 | __audit_mq_sendrecv(mqdes, msg_len, msg_prio, abs_timeout); |
20ca73bc | 507 | } |
20114f71 | 508 | static inline void audit_mq_notify(mqd_t mqdes, const struct sigevent *notification) |
20ca73bc | 509 | { |
5ac3a9c2 | 510 | if (unlikely(!audit_dummy_context())) |
20114f71 | 511 | __audit_mq_notify(mqdes, notification); |
20ca73bc | 512 | } |
7392906e | 513 | static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat) |
20ca73bc | 514 | { |
5ac3a9c2 | 515 | if (unlikely(!audit_dummy_context())) |
7392906e | 516 | __audit_mq_getsetattr(mqdes, mqstat); |
20ca73bc | 517 | } |
3fc689e9 | 518 | |
d84f4f99 DH |
519 | static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm, |
520 | const struct cred *new, | |
521 | const struct cred *old) | |
3fc689e9 EP |
522 | { |
523 | if (unlikely(!audit_dummy_context())) | |
d84f4f99 DH |
524 | return __audit_log_bprm_fcaps(bprm, new, old); |
525 | return 0; | |
3fc689e9 EP |
526 | } |
527 | ||
57f71a0a | 528 | static inline void audit_log_capset(pid_t pid, const struct cred *new, |
d84f4f99 | 529 | const struct cred *old) |
e68b75a0 EP |
530 | { |
531 | if (unlikely(!audit_dummy_context())) | |
57f71a0a | 532 | __audit_log_capset(pid, new, old); |
e68b75a0 EP |
533 | } |
534 | ||
471a5c7c | 535 | extern int audit_n_rules; |
e54dc243 | 536 | extern int audit_signals; |
1da177e4 | 537 | #else |
a64e6494 | 538 | #define audit_finish_fork(t) |
1da177e4 LT |
539 | #define audit_alloc(t) ({ 0; }) |
540 | #define audit_free(t) do { ; } while (0) | |
5411be59 AV |
541 | #define audit_syscall_entry(ta,a,b,c,d,e) do { ; } while (0) |
542 | #define audit_syscall_exit(f,r) do { ; } while (0) | |
d51374ad | 543 | #define audit_dummy_context() 1 |
1da177e4 LT |
544 | #define audit_getname(n) do { ; } while (0) |
545 | #define audit_putname(n) do { ; } while (0) | |
5a190ae6 | 546 | #define __audit_inode(n,d) do { ; } while (0) |
73241ccc | 547 | #define __audit_inode_child(d,i,p) do { ; } while (0) |
5a190ae6 | 548 | #define audit_inode(n,d) do { ; } while (0) |
73241ccc | 549 | #define audit_inode_child(d,i,p) do { ; } while (0) |
0a4ff8c2 | 550 | #define audit_core_dumps(i) do { ; } while (0) |
48887e63 | 551 | #define auditsc_get_stamp(c,t,s) (0) |
0c11b942 | 552 | #define audit_get_loginuid(t) (-1) |
4746ec5b | 553 | #define audit_get_sessionid(t) (-1) |
161a09e7 | 554 | #define audit_log_task_context(b) do { ; } while (0) |
a33e6751 | 555 | #define audit_ipc_obj(i) ((void)0) |
e816f370 | 556 | #define audit_ipc_set_perm(q,u,g,m) ((void)0) |
473ae30b | 557 | #define audit_bprm(p) ({ 0; }) |
f3298dc4 | 558 | #define audit_socketcall(n,a) ((void)0) |
157cf649 | 559 | #define audit_fd_pair(n,a) ((void)0) |
3ec3b2fb | 560 | #define audit_sockaddr(len, addr) ({ 0; }) |
8c8570fb | 561 | #define audit_set_macxattr(n) do { ; } while (0) |
564f6993 | 562 | #define audit_mq_open(o,m,a) ((void)0) |
c32c8af4 | 563 | #define audit_mq_sendrecv(d,l,p,t) ((void)0) |
20114f71 | 564 | #define audit_mq_notify(d,n) ((void)0) |
7392906e | 565 | #define audit_mq_getsetattr(d,s) ((void)0) |
d84f4f99 | 566 | #define audit_log_bprm_fcaps(b, ncr, ocr) ({ 0; }) |
57f71a0a | 567 | #define audit_log_capset(pid, ncr, ocr) ((void)0) |
a5cb013d | 568 | #define audit_ptrace(t) ((void)0) |
471a5c7c | 569 | #define audit_n_rules 0 |
e54dc243 | 570 | #define audit_signals 0 |
1da177e4 LT |
571 | #endif |
572 | ||
573 | #ifdef CONFIG_AUDIT | |
574 | /* These are defined in audit.c */ | |
575 | /* Public API */ | |
9796fdd8 | 576 | extern void audit_log(struct audit_context *ctx, gfp_t gfp_mask, |
9ad9ad38 DW |
577 | int type, const char *fmt, ...) |
578 | __attribute__((format(printf,4,5))); | |
1da177e4 | 579 | |
9796fdd8 | 580 | extern struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, int type); |
1da177e4 LT |
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); | |
de6bbd1d EP |
585 | extern int audit_string_contains_control(const char *string, |
586 | size_t len); | |
b556f8ad EP |
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); | |
de6bbd1d | 597 | extern void audit_log_untrustedstring(struct audit_buffer *ab, |
83c7d091 | 598 | const char *string); |
1da177e4 LT |
599 | extern void audit_log_d_path(struct audit_buffer *ab, |
600 | const char *prefix, | |
44707fdf | 601 | struct path *path); |
522ed776 | 602 | extern void audit_log_lost(const char *message); |
9d57a7f9 AD |
603 | extern int audit_update_lsm_rules(void); |
604 | ||
fe7752ba | 605 | /* Private API (for audit.c only) */ |
d8de7247 | 606 | extern int audit_filter_user(struct netlink_skb_parms *cb); |
fe7752ba DW |
607 | extern int audit_filter_type(int type); |
608 | extern int audit_receive_filter(int type, int pid, int uid, int seq, | |
2532386f EP |
609 | void *data, size_t datasz, uid_t loginuid, |
610 | u32 sessionid, u32 sid); | |
522ed776 | 611 | extern int audit_enabled; |
1da177e4 | 612 | #else |
7b430437 | 613 | #define audit_log(c,g,t,f,...) do { ; } while (0) |
13774024 | 614 | #define audit_log_start(c,g,t) ({ NULL; }) |
1da177e4 LT |
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) | |
b556f8ad EP |
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) | |
9c937dcc | 621 | #define audit_log_n_untrustedstring(a,n,s) do { ; } while (0) |
b556f8ad | 622 | #define audit_log_untrustedstring(a,s) do { ; } while (0) |
44707fdf | 623 | #define audit_log_d_path(b, p, d) do { ; } while (0) |
522ed776 | 624 | #define audit_enabled 0 |
1da177e4 LT |
625 | #endif |
626 | #endif | |
627 | #endif |