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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 SG |
38 | * 1700 - 1799 kernel anomaly records |
39 | * 1800 - 1999 future kernel use (maybe integrity labels and related events) | |
90d526c0 SG |
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) | |
c0404993 | 47 | * |
90d526c0 SG |
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. | |
c0404993 | 51 | */ |
c2f0c7c3 SG |
52 | #define AUDIT_GET 1000 /* Get status */ |
53 | #define AUDIT_SET 1001 /* Set status (enable/disable/auditd) */ | |
93315ed6 AG |
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 */ | |
c0404993 | 57 | #define AUDIT_USER 1005 /* Message from userspace -- deprecated */ |
c2f0c7c3 | 58 | #define AUDIT_LOGIN 1006 /* Define the login id and information */ |
c0404993 SG |
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 */ | |
93315ed6 AG |
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 */ | |
74c3cbe3 AV |
66 | #define AUDIT_TRIM 1014 /* Trim junk from watched tree */ |
67 | #define AUDIT_MAKE_EQUIV 1015 /* Append to watched tree */ | |
6dc2c1b7 MT |
68 | #define AUDIT_TTY_GET 1016 /* Get TTY auditing status */ |
69 | #define AUDIT_TTY_SET 1017 /* Set TTY auditing status */ | |
c0404993 | 70 | |
4a4cd633 DW |
71 | #define AUDIT_FIRST_USER_MSG 1100 /* Userspace messages mostly uninteresting to kernel */ |
72 | #define AUDIT_USER_AVC 1107 /* We filter this differently */ | |
522ed776 | 73 | #define AUDIT_USER_TTY 1124 /* Non-ICANON TTY input meaning */ |
209aba03 | 74 | #define AUDIT_LAST_USER_MSG 1199 |
90d526c0 SG |
75 | #define AUDIT_FIRST_USER_MSG2 2100 /* More user space messages */ |
76 | #define AUDIT_LAST_USER_MSG2 2999 | |
c0404993 SG |
77 | |
78 | #define AUDIT_DAEMON_START 1200 /* Daemon startup record */ | |
79 | #define AUDIT_DAEMON_END 1201 /* Daemon normal stop record */ | |
80 | #define AUDIT_DAEMON_ABORT 1202 /* Daemon error stop record */ | |
81 | #define AUDIT_DAEMON_CONFIG 1203 /* Daemon config change */ | |
82 | ||
83 | #define AUDIT_SYSCALL 1300 /* Syscall event */ | |
c8e649ba | 84 | /* #define AUDIT_FS_WATCH 1301 * Deprecated */ |
8f37d47c | 85 | #define AUDIT_PATH 1302 /* Filename path information */ |
c0404993 | 86 | #define AUDIT_IPC 1303 /* IPC record */ |
3ec3b2fb | 87 | #define AUDIT_SOCKETCALL 1304 /* sys_socketcall arguments */ |
c0404993 | 88 | #define AUDIT_CONFIG_CHANGE 1305 /* Audit system configuration change */ |
3ec3b2fb | 89 | #define AUDIT_SOCKADDR 1306 /* sockaddr copied as syscall arg */ |
8f37d47c | 90 | #define AUDIT_CWD 1307 /* Current working directory */ |
473ae30b | 91 | #define AUDIT_EXECVE 1309 /* execve arguments */ |
073115d6 | 92 | #define AUDIT_IPC_SET_PERM 1311 /* IPC new permissions record type */ |
20ca73bc GW |
93 | #define AUDIT_MQ_OPEN 1312 /* POSIX MQ open record type */ |
94 | #define AUDIT_MQ_SENDRECV 1313 /* POSIX MQ send/receive record type */ | |
95 | #define AUDIT_MQ_NOTIFY 1314 /* POSIX MQ notify record type */ | |
96 | #define AUDIT_MQ_GETSETATTR 1315 /* POSIX MQ get/set attribute record type */ | |
c8e649ba | 97 | #define AUDIT_KERNEL_OTHER 1316 /* For use by 3rd party modules */ |
db349509 | 98 | #define AUDIT_FD_PAIR 1317 /* audit record for pipe/socketpair */ |
a5cb013d | 99 | #define AUDIT_OBJ_PID 1318 /* ptrace target */ |
522ed776 | 100 | #define AUDIT_TTY 1319 /* Input on an administrative TTY */ |
c0641f28 | 101 | #define AUDIT_EOE 1320 /* End of multi-record event */ |
c0404993 SG |
102 | |
103 | #define AUDIT_AVC 1400 /* SE Linux avc denial or grant */ | |
104 | #define AUDIT_SELINUX_ERR 1401 /* Internal SE Linux Errors */ | |
01116105 | 105 | #define AUDIT_AVC_PATH 1402 /* dentry, vfsmount pair from avc */ |
af601e46 SG |
106 | #define AUDIT_MAC_POLICY_LOAD 1403 /* Policy file load */ |
107 | #define AUDIT_MAC_STATUS 1404 /* Changed enforcing,permissive,off */ | |
108 | #define AUDIT_MAC_CONFIG_CHANGE 1405 /* Changes to booleans */ | |
95d4e6be PM |
109 | #define AUDIT_MAC_UNLBL_ALLOW 1406 /* NetLabel: allow unlabeled traffic */ |
110 | #define AUDIT_MAC_CIPSOV4_ADD 1407 /* NetLabel: add CIPSOv4 DOI entry */ | |
111 | #define AUDIT_MAC_CIPSOV4_DEL 1408 /* NetLabel: del CIPSOv4 DOI entry */ | |
112 | #define AUDIT_MAC_MAP_ADD 1409 /* NetLabel: add LSM domain mapping */ | |
113 | #define AUDIT_MAC_MAP_DEL 1410 /* NetLabel: del LSM domain mapping */ | |
ab5f5e8b JL |
114 | #define AUDIT_MAC_IPSEC_ADDSA 1411 /* Not used */ |
115 | #define AUDIT_MAC_IPSEC_DELSA 1412 /* Not used */ | |
116 | #define AUDIT_MAC_IPSEC_ADDSPD 1413 /* Not used */ | |
117 | #define AUDIT_MAC_IPSEC_DELSPD 1414 /* Not used */ | |
118 | #define AUDIT_MAC_IPSEC_EVENT 1415 /* Audit an IPSec event */ | |
13541b3a PM |
119 | #define AUDIT_MAC_UNLBL_STCADD 1416 /* NetLabel: add a static label */ |
120 | #define AUDIT_MAC_UNLBL_STCDEL 1417 /* NetLabel: del a static label */ | |
c2f0c7c3 | 121 | |
5bdb9886 SG |
122 | #define AUDIT_FIRST_KERN_ANOM_MSG 1700 |
123 | #define AUDIT_LAST_KERN_ANOM_MSG 1799 | |
124 | #define AUDIT_ANOM_PROMISCUOUS 1700 /* Device changed promiscuous mode */ | |
0a4ff8c2 | 125 | #define AUDIT_ANOM_ABEND 1701 /* Process ended abnormally */ |
5bdb9886 | 126 | |
c2f0c7c3 | 127 | #define AUDIT_KERNEL 2000 /* Asynchronous audit record. NOT A REQUEST. */ |
1da177e4 LT |
128 | |
129 | /* Rule flags */ | |
0f45aa18 DW |
130 | #define AUDIT_FILTER_USER 0x00 /* Apply rule to user-generated messages */ |
131 | #define AUDIT_FILTER_TASK 0x01 /* Apply rule at task creation (not syscall) */ | |
132 | #define AUDIT_FILTER_ENTRY 0x02 /* Apply rule at syscall entry */ | |
133 | #define AUDIT_FILTER_WATCH 0x03 /* Apply rule to file system watches */ | |
134 | #define AUDIT_FILTER_EXIT 0x04 /* Apply rule at syscall exit */ | |
c8edc80c | 135 | #define AUDIT_FILTER_TYPE 0x05 /* Apply rule at audit_log_start */ |
0f45aa18 | 136 | |
c8edc80c | 137 | #define AUDIT_NR_FILTERS 6 |
0f45aa18 DW |
138 | |
139 | #define AUDIT_FILTER_PREPEND 0x10 /* Prepend to front of list */ | |
1da177e4 LT |
140 | |
141 | /* Rule actions */ | |
142 | #define AUDIT_NEVER 0 /* Do not build context if rule matches */ | |
143 | #define AUDIT_POSSIBLE 1 /* Build context if rule matches */ | |
144 | #define AUDIT_ALWAYS 2 /* Generate audit record if rule matches */ | |
145 | ||
146 | /* Rule structure sizes -- if these change, different AUDIT_ADD and | |
147 | * AUDIT_LIST commands must be implemented. */ | |
148 | #define AUDIT_MAX_FIELDS 64 | |
a42da93c | 149 | #define AUDIT_MAX_KEY_LEN 256 |
1da177e4 LT |
150 | #define AUDIT_BITMASK_SIZE 64 |
151 | #define AUDIT_WORD(nr) ((__u32)((nr)/32)) | |
152 | #define AUDIT_BIT(nr) (1 << ((nr) - AUDIT_WORD(nr)*32)) | |
153 | ||
b915543b AV |
154 | #define AUDIT_SYSCALL_CLASSES 16 |
155 | #define AUDIT_CLASS_DIR_WRITE 0 | |
156 | #define AUDIT_CLASS_DIR_WRITE_32 1 | |
157 | #define AUDIT_CLASS_CHATTR 2 | |
158 | #define AUDIT_CLASS_CHATTR_32 3 | |
dc104fb3 AV |
159 | #define AUDIT_CLASS_READ 4 |
160 | #define AUDIT_CLASS_READ_32 5 | |
161 | #define AUDIT_CLASS_WRITE 6 | |
162 | #define AUDIT_CLASS_WRITE_32 7 | |
7f13da40 AG |
163 | #define AUDIT_CLASS_SIGNAL 8 |
164 | #define AUDIT_CLASS_SIGNAL_32 9 | |
b915543b | 165 | |
b63862f4 DK |
166 | /* This bitmask is used to validate user input. It represents all bits that |
167 | * are currently used in an audit field constant understood by the kernel. | |
168 | * If you are adding a new #define AUDIT_<whatever>, please ensure that | |
169 | * AUDIT_UNUSED_BITS is updated if need be. */ | |
74f2345b | 170 | #define AUDIT_UNUSED_BITS 0x07FFFC00 |
b63862f4 DK |
171 | |
172 | ||
1da177e4 LT |
173 | /* Rule fields */ |
174 | /* These are useful when checking the | |
175 | * task structure at task creation time | |
176 | * (AUDIT_PER_TASK). */ | |
177 | #define AUDIT_PID 0 | |
178 | #define AUDIT_UID 1 | |
179 | #define AUDIT_EUID 2 | |
180 | #define AUDIT_SUID 3 | |
181 | #define AUDIT_FSUID 4 | |
182 | #define AUDIT_GID 5 | |
183 | #define AUDIT_EGID 6 | |
184 | #define AUDIT_SGID 7 | |
185 | #define AUDIT_FSGID 8 | |
186 | #define AUDIT_LOGINUID 9 | |
187 | #define AUDIT_PERS 10 | |
2fd6f58b | 188 | #define AUDIT_ARCH 11 |
c8edc80c | 189 | #define AUDIT_MSGTYPE 12 |
3a6b9f85 DG |
190 | #define AUDIT_SUBJ_USER 13 /* security label user */ |
191 | #define AUDIT_SUBJ_ROLE 14 /* security label role */ | |
192 | #define AUDIT_SUBJ_TYPE 15 /* security label type */ | |
193 | #define AUDIT_SUBJ_SEN 16 /* security label sensitivity label */ | |
194 | #define AUDIT_SUBJ_CLR 17 /* security label clearance label */ | |
3c66251e | 195 | #define AUDIT_PPID 18 |
3a6b9f85 DG |
196 | #define AUDIT_OBJ_USER 19 |
197 | #define AUDIT_OBJ_ROLE 20 | |
198 | #define AUDIT_OBJ_TYPE 21 | |
199 | #define AUDIT_OBJ_LEV_LOW 22 | |
200 | #define AUDIT_OBJ_LEV_HIGH 23 | |
1da177e4 LT |
201 | |
202 | /* These are ONLY useful when checking | |
203 | * at syscall exit time (AUDIT_AT_EXIT). */ | |
204 | #define AUDIT_DEVMAJOR 100 | |
205 | #define AUDIT_DEVMINOR 101 | |
206 | #define AUDIT_INODE 102 | |
207 | #define AUDIT_EXIT 103 | |
208 | #define AUDIT_SUCCESS 104 /* exit >= 0; value ignored */ | |
f368c07d | 209 | #define AUDIT_WATCH 105 |
55669bfa | 210 | #define AUDIT_PERM 106 |
74c3cbe3 | 211 | #define AUDIT_DIR 107 |
8b67dca9 | 212 | #define AUDIT_FILETYPE 108 |
1da177e4 LT |
213 | |
214 | #define AUDIT_ARG0 200 | |
215 | #define AUDIT_ARG1 (AUDIT_ARG0+1) | |
216 | #define AUDIT_ARG2 (AUDIT_ARG0+2) | |
217 | #define AUDIT_ARG3 (AUDIT_ARG0+3) | |
218 | ||
5adc8a6a AG |
219 | #define AUDIT_FILTERKEY 210 |
220 | ||
b63862f4 DK |
221 | #define AUDIT_NEGATE 0x80000000 |
222 | ||
223 | /* These are the supported operators. | |
74f2345b EP |
224 | * 4 2 1 8 |
225 | * = > < ? | |
226 | * ---------- | |
227 | * 0 0 0 0 00 nonsense | |
228 | * 0 0 0 1 08 & bit mask | |
229 | * 0 0 1 0 10 < | |
230 | * 0 1 0 0 20 > | |
231 | * 0 1 1 0 30 != | |
232 | * 1 0 0 0 40 = | |
233 | * 1 0 0 1 48 &= bit test | |
234 | * 1 0 1 0 50 <= | |
235 | * 1 1 0 0 60 >= | |
236 | * 1 1 1 1 78 all operators | |
b63862f4 | 237 | */ |
74f2345b | 238 | #define AUDIT_BIT_MASK 0x08000000 |
b63862f4 DK |
239 | #define AUDIT_LESS_THAN 0x10000000 |
240 | #define AUDIT_GREATER_THAN 0x20000000 | |
241 | #define AUDIT_NOT_EQUAL 0x30000000 | |
242 | #define AUDIT_EQUAL 0x40000000 | |
74f2345b | 243 | #define AUDIT_BIT_TEST (AUDIT_BIT_MASK|AUDIT_EQUAL) |
b63862f4 DK |
244 | #define AUDIT_LESS_THAN_OR_EQUAL (AUDIT_LESS_THAN|AUDIT_EQUAL) |
245 | #define AUDIT_GREATER_THAN_OR_EQUAL (AUDIT_GREATER_THAN|AUDIT_EQUAL) | |
74f2345b | 246 | #define AUDIT_OPERATORS (AUDIT_EQUAL|AUDIT_NOT_EQUAL|AUDIT_BIT_MASK) |
1da177e4 LT |
247 | |
248 | /* Status symbols */ | |
249 | /* Mask values */ | |
250 | #define AUDIT_STATUS_ENABLED 0x0001 | |
251 | #define AUDIT_STATUS_FAILURE 0x0002 | |
252 | #define AUDIT_STATUS_PID 0x0004 | |
253 | #define AUDIT_STATUS_RATE_LIMIT 0x0008 | |
254 | #define AUDIT_STATUS_BACKLOG_LIMIT 0x0010 | |
255 | /* Failure-to-log actions */ | |
256 | #define AUDIT_FAIL_SILENT 0 | |
257 | #define AUDIT_FAIL_PRINTK 1 | |
258 | #define AUDIT_FAIL_PANIC 2 | |
259 | ||
2fd6f58b DW |
260 | /* distinguish syscall tables */ |
261 | #define __AUDIT_ARCH_64BIT 0x80000000 | |
262 | #define __AUDIT_ARCH_LE 0x40000000 | |
263 | #define AUDIT_ARCH_ALPHA (EM_ALPHA|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) | |
264 | #define AUDIT_ARCH_ARM (EM_ARM|__AUDIT_ARCH_LE) | |
265 | #define AUDIT_ARCH_ARMEB (EM_ARM) | |
266 | #define AUDIT_ARCH_CRIS (EM_CRIS|__AUDIT_ARCH_LE) | |
267 | #define AUDIT_ARCH_FRV (EM_FRV) | |
268 | #define AUDIT_ARCH_H8300 (EM_H8_300) | |
269 | #define AUDIT_ARCH_I386 (EM_386|__AUDIT_ARCH_LE) | |
270 | #define AUDIT_ARCH_IA64 (EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) | |
271 | #define AUDIT_ARCH_M32R (EM_M32R) | |
272 | #define AUDIT_ARCH_M68K (EM_68K) | |
273 | #define AUDIT_ARCH_MIPS (EM_MIPS) | |
274 | #define AUDIT_ARCH_MIPSEL (EM_MIPS|__AUDIT_ARCH_LE) | |
275 | #define AUDIT_ARCH_MIPS64 (EM_MIPS|__AUDIT_ARCH_64BIT) | |
276 | #define AUDIT_ARCH_MIPSEL64 (EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) | |
277 | #define AUDIT_ARCH_PARISC (EM_PARISC) | |
278 | #define AUDIT_ARCH_PARISC64 (EM_PARISC|__AUDIT_ARCH_64BIT) | |
279 | #define AUDIT_ARCH_PPC (EM_PPC) | |
280 | #define AUDIT_ARCH_PPC64 (EM_PPC64|__AUDIT_ARCH_64BIT) | |
281 | #define AUDIT_ARCH_S390 (EM_S390) | |
282 | #define AUDIT_ARCH_S390X (EM_S390|__AUDIT_ARCH_64BIT) | |
283 | #define AUDIT_ARCH_SH (EM_SH) | |
284 | #define AUDIT_ARCH_SHEL (EM_SH|__AUDIT_ARCH_LE) | |
285 | #define AUDIT_ARCH_SH64 (EM_SH|__AUDIT_ARCH_64BIT) | |
286 | #define AUDIT_ARCH_SHEL64 (EM_SH|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) | |
287 | #define AUDIT_ARCH_SPARC (EM_SPARC) | |
f7ceba36 | 288 | #define AUDIT_ARCH_SPARC64 (EM_SPARCV9|__AUDIT_ARCH_64BIT) |
2fd6f58b DW |
289 | #define AUDIT_ARCH_V850 (EM_V850|__AUDIT_ARCH_LE) |
290 | #define AUDIT_ARCH_X86_64 (EM_X86_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) | |
291 | ||
55669bfa AV |
292 | #define AUDIT_PERM_EXEC 1 |
293 | #define AUDIT_PERM_WRITE 2 | |
294 | #define AUDIT_PERM_READ 4 | |
295 | #define AUDIT_PERM_ATTR 8 | |
296 | ||
1da177e4 LT |
297 | struct audit_status { |
298 | __u32 mask; /* Bit mask for valid entries */ | |
23f32d18 | 299 | __u32 enabled; /* 1 = enabled, 0 = disabled */ |
1da177e4 LT |
300 | __u32 failure; /* Failure-to-log action */ |
301 | __u32 pid; /* pid of auditd process */ | |
302 | __u32 rate_limit; /* messages rate limit (per second) */ | |
303 | __u32 backlog_limit; /* waiting messages limit */ | |
304 | __u32 lost; /* messages lost */ | |
305 | __u32 backlog; /* messages waiting in queue */ | |
306 | }; | |
307 | ||
522ed776 MT |
308 | struct audit_tty_status { |
309 | __u32 enabled; /* 1 = enabled, 0 = disabled */ | |
310 | }; | |
311 | ||
93315ed6 AG |
312 | /* audit_rule_data supports filter rules with both integer and string |
313 | * fields. It corresponds with AUDIT_ADD_RULE, AUDIT_DEL_RULE and | |
314 | * AUDIT_LIST_RULES requests. | |
315 | */ | |
316 | struct audit_rule_data { | |
317 | __u32 flags; /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */ | |
318 | __u32 action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */ | |
319 | __u32 field_count; | |
5d330108 | 320 | __u32 mask[AUDIT_BITMASK_SIZE]; /* syscall(s) affected */ |
93315ed6 AG |
321 | __u32 fields[AUDIT_MAX_FIELDS]; |
322 | __u32 values[AUDIT_MAX_FIELDS]; | |
323 | __u32 fieldflags[AUDIT_MAX_FIELDS]; | |
324 | __u32 buflen; /* total length of string fields */ | |
325 | char buf[0]; /* string fields buffer */ | |
326 | }; | |
327 | ||
328 | /* audit_rule is supported to maintain backward compatibility with | |
329 | * userspace. It supports integer fields only and corresponds to | |
330 | * AUDIT_ADD, AUDIT_DEL and AUDIT_LIST requests. | |
331 | */ | |
1da177e4 LT |
332 | struct audit_rule { /* for AUDIT_LIST, AUDIT_ADD, and AUDIT_DEL */ |
333 | __u32 flags; /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */ | |
334 | __u32 action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */ | |
335 | __u32 field_count; | |
336 | __u32 mask[AUDIT_BITMASK_SIZE]; | |
337 | __u32 fields[AUDIT_MAX_FIELDS]; | |
338 | __u32 values[AUDIT_MAX_FIELDS]; | |
339 | }; | |
340 | ||
341 | #ifdef __KERNEL__ | |
f001e47f | 342 | #include <linux/sched.h> |
1da177e4 | 343 | |
c2f0c7c3 SG |
344 | struct audit_sig_info { |
345 | uid_t uid; | |
346 | pid_t pid; | |
e1396065 | 347 | char ctx[0]; |
c2f0c7c3 SG |
348 | }; |
349 | ||
1da177e4 LT |
350 | struct audit_buffer; |
351 | struct audit_context; | |
352 | struct inode; | |
5bb289b5 | 353 | struct netlink_skb_parms; |
473ae30b | 354 | struct linux_binprm; |
20ca73bc GW |
355 | struct mq_attr; |
356 | struct mqstat; | |
9d57a7f9 AD |
357 | struct audit_watch; |
358 | struct audit_tree; | |
359 | ||
360 | struct audit_krule { | |
361 | int vers_ops; | |
362 | u32 flags; | |
363 | u32 listnr; | |
364 | u32 action; | |
365 | u32 mask[AUDIT_BITMASK_SIZE]; | |
366 | u32 buflen; /* for data alloc on list rules */ | |
367 | u32 field_count; | |
368 | char *filterkey; /* ties events to rules */ | |
369 | struct audit_field *fields; | |
370 | struct audit_field *arch_f; /* quick access to arch field */ | |
371 | struct audit_field *inode_f; /* quick access to an inode field */ | |
372 | struct audit_watch *watch; /* associated watch */ | |
373 | struct audit_tree *tree; /* associated watched tree */ | |
374 | struct list_head rlist; /* entry in audit_{watch,tree}.rules list */ | |
375 | }; | |
376 | ||
377 | struct audit_field { | |
378 | u32 type; | |
379 | u32 val; | |
380 | u32 op; | |
04305e4a AD |
381 | char *lsm_str; |
382 | void *lsm_rule; | |
9d57a7f9 | 383 | }; |
1da177e4 | 384 | |
2fd6f58b DW |
385 | #define AUDITSC_INVALID 0 |
386 | #define AUDITSC_SUCCESS 1 | |
387 | #define AUDITSC_FAILURE 2 | |
388 | #define AUDITSC_RESULT(x) ( ((long)(x))<0?AUDITSC_FAILURE:AUDITSC_SUCCESS ) | |
b915543b | 389 | extern int __init audit_register_class(int class, unsigned *list); |
55669bfa | 390 | extern int audit_classify_syscall(int abi, unsigned syscall); |
e54dc243 | 391 | extern int audit_classify_arch(int arch); |
1da177e4 LT |
392 | #ifdef CONFIG_AUDITSYSCALL |
393 | /* These are defined in auditsc.c */ | |
394 | /* Public API */ | |
395 | extern int audit_alloc(struct task_struct *task); | |
396 | extern void audit_free(struct task_struct *task); | |
5411be59 | 397 | extern void audit_syscall_entry(int arch, |
1da177e4 LT |
398 | int major, unsigned long a0, unsigned long a1, |
399 | unsigned long a2, unsigned long a3); | |
5411be59 | 400 | extern void audit_syscall_exit(int failed, long return_code); |
d8945bb5 | 401 | extern void __audit_getname(const char *name); |
1da177e4 | 402 | extern void audit_putname(const char *name); |
5a190ae6 AV |
403 | extern void __audit_inode(const char *name, const struct dentry *dentry); |
404 | extern void __audit_inode_child(const char *dname, const struct dentry *dentry, | |
73d3ec5a | 405 | const struct inode *parent); |
a5cb013d AV |
406 | extern void __audit_ptrace(struct task_struct *t); |
407 | ||
d51374ad AV |
408 | static inline int audit_dummy_context(void) |
409 | { | |
410 | void *p = current->audit_context; | |
411 | return !p || *(int *)p; | |
412 | } | |
d8945bb5 AV |
413 | static inline void audit_getname(const char *name) |
414 | { | |
5ac3a9c2 | 415 | if (unlikely(!audit_dummy_context())) |
d8945bb5 AV |
416 | __audit_getname(name); |
417 | } | |
5a190ae6 | 418 | static inline void audit_inode(const char *name, const struct dentry *dentry) { |
5ac3a9c2 | 419 | if (unlikely(!audit_dummy_context())) |
5a190ae6 | 420 | __audit_inode(name, dentry); |
73241ccc AG |
421 | } |
422 | static inline void audit_inode_child(const char *dname, | |
5a190ae6 | 423 | const struct dentry *dentry, |
73d3ec5a | 424 | const struct inode *parent) { |
5ac3a9c2 | 425 | if (unlikely(!audit_dummy_context())) |
5a190ae6 | 426 | __audit_inode_child(dname, dentry, parent); |
73241ccc | 427 | } |
0a4ff8c2 | 428 | void audit_core_dumps(long signr); |
1da177e4 | 429 | |
a5cb013d AV |
430 | static inline void audit_ptrace(struct task_struct *t) |
431 | { | |
432 | if (unlikely(!audit_dummy_context())) | |
433 | __audit_ptrace(t); | |
434 | } | |
435 | ||
1da177e4 | 436 | /* Private API (for audit.c only) */ |
bfb4496e DW |
437 | extern unsigned int audit_serial(void); |
438 | extern void auditsc_get_stamp(struct audit_context *ctx, | |
439 | struct timespec *t, unsigned int *serial); | |
456be6cd | 440 | extern int audit_set_loginuid(struct task_struct *task, uid_t loginuid); |
bfef93a5 | 441 | #define audit_get_loginuid(t) ((t)->loginuid) |
4746ec5b | 442 | #define audit_get_sessionid(t) ((t)->sessionid) |
161a09e7 | 443 | extern void audit_log_task_context(struct audit_buffer *ab); |
d8945bb5 AV |
444 | extern int __audit_ipc_obj(struct kern_ipc_perm *ipcp); |
445 | extern int __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode); | |
473ae30b | 446 | extern int audit_bprm(struct linux_binprm *bprm); |
3ec3b2fb DW |
447 | extern int audit_socketcall(int nargs, unsigned long *args); |
448 | extern int audit_sockaddr(int len, void *addr); | |
db349509 | 449 | extern int __audit_fd_pair(int fd1, int fd2); |
8c8570fb | 450 | extern int audit_set_macxattr(const char *name); |
20ca73bc GW |
451 | extern int __audit_mq_open(int oflag, mode_t mode, struct mq_attr __user *u_attr); |
452 | extern int __audit_mq_timedsend(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec __user *u_abs_timeout); | |
453 | 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); | |
454 | extern int __audit_mq_notify(mqd_t mqdes, const struct sigevent __user *u_notification); | |
455 | extern int __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat); | |
d8945bb5 AV |
456 | |
457 | static inline int audit_ipc_obj(struct kern_ipc_perm *ipcp) | |
458 | { | |
5ac3a9c2 | 459 | if (unlikely(!audit_dummy_context())) |
d8945bb5 AV |
460 | return __audit_ipc_obj(ipcp); |
461 | return 0; | |
462 | } | |
db349509 AV |
463 | static inline int audit_fd_pair(int fd1, int fd2) |
464 | { | |
465 | if (unlikely(!audit_dummy_context())) | |
466 | return __audit_fd_pair(fd1, fd2); | |
467 | return 0; | |
468 | } | |
d8945bb5 AV |
469 | static inline int audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode) |
470 | { | |
5ac3a9c2 | 471 | if (unlikely(!audit_dummy_context())) |
d8945bb5 AV |
472 | return __audit_ipc_set_perm(qbytes, uid, gid, mode); |
473 | return 0; | |
474 | } | |
20ca73bc GW |
475 | static inline int audit_mq_open(int oflag, mode_t mode, struct mq_attr __user *u_attr) |
476 | { | |
5ac3a9c2 | 477 | if (unlikely(!audit_dummy_context())) |
20ca73bc GW |
478 | return __audit_mq_open(oflag, mode, u_attr); |
479 | return 0; | |
480 | } | |
481 | static inline int audit_mq_timedsend(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec __user *u_abs_timeout) | |
482 | { | |
5ac3a9c2 | 483 | if (unlikely(!audit_dummy_context())) |
20ca73bc GW |
484 | return __audit_mq_timedsend(mqdes, msg_len, msg_prio, u_abs_timeout); |
485 | return 0; | |
486 | } | |
487 | 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) | |
488 | { | |
5ac3a9c2 | 489 | if (unlikely(!audit_dummy_context())) |
20ca73bc GW |
490 | return __audit_mq_timedreceive(mqdes, msg_len, u_msg_prio, u_abs_timeout); |
491 | return 0; | |
492 | } | |
493 | static inline int audit_mq_notify(mqd_t mqdes, const struct sigevent __user *u_notification) | |
494 | { | |
5ac3a9c2 | 495 | if (unlikely(!audit_dummy_context())) |
20ca73bc GW |
496 | return __audit_mq_notify(mqdes, u_notification); |
497 | return 0; | |
498 | } | |
499 | static inline int audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat) | |
500 | { | |
5ac3a9c2 | 501 | if (unlikely(!audit_dummy_context())) |
20ca73bc GW |
502 | return __audit_mq_getsetattr(mqdes, mqstat); |
503 | return 0; | |
504 | } | |
471a5c7c | 505 | extern int audit_n_rules; |
e54dc243 | 506 | extern int audit_signals; |
1da177e4 LT |
507 | #else |
508 | #define audit_alloc(t) ({ 0; }) | |
509 | #define audit_free(t) do { ; } while (0) | |
5411be59 AV |
510 | #define audit_syscall_entry(ta,a,b,c,d,e) do { ; } while (0) |
511 | #define audit_syscall_exit(f,r) do { ; } while (0) | |
d51374ad | 512 | #define audit_dummy_context() 1 |
1da177e4 LT |
513 | #define audit_getname(n) do { ; } while (0) |
514 | #define audit_putname(n) do { ; } while (0) | |
5a190ae6 | 515 | #define __audit_inode(n,d) do { ; } while (0) |
73241ccc | 516 | #define __audit_inode_child(d,i,p) do { ; } while (0) |
5a190ae6 | 517 | #define audit_inode(n,d) do { ; } while (0) |
73241ccc | 518 | #define audit_inode_child(d,i,p) do { ; } while (0) |
0a4ff8c2 | 519 | #define audit_core_dumps(i) do { ; } while (0) |
bfb4496e | 520 | #define auditsc_get_stamp(c,t,s) do { BUG(); } while (0) |
0c11b942 | 521 | #define audit_get_loginuid(t) (-1) |
4746ec5b | 522 | #define audit_get_sessionid(t) (-1) |
161a09e7 | 523 | #define audit_log_task_context(b) do { ; } while (0) |
073115d6 | 524 | #define audit_ipc_obj(i) ({ 0; }) |
ac03221a | 525 | #define audit_ipc_set_perm(q,u,g,m) ({ 0; }) |
473ae30b | 526 | #define audit_bprm(p) ({ 0; }) |
3ec3b2fb | 527 | #define audit_socketcall(n,a) ({ 0; }) |
db349509 | 528 | #define audit_fd_pair(n,a) ({ 0; }) |
3ec3b2fb | 529 | #define audit_sockaddr(len, addr) ({ 0; }) |
8c8570fb | 530 | #define audit_set_macxattr(n) do { ; } while (0) |
20ca73bc GW |
531 | #define audit_mq_open(o,m,a) ({ 0; }) |
532 | #define audit_mq_timedsend(d,l,p,t) ({ 0; }) | |
533 | #define audit_mq_timedreceive(d,l,p,t) ({ 0; }) | |
534 | #define audit_mq_notify(d,n) ({ 0; }) | |
535 | #define audit_mq_getsetattr(d,s) ({ 0; }) | |
a5cb013d | 536 | #define audit_ptrace(t) ((void)0) |
471a5c7c | 537 | #define audit_n_rules 0 |
e54dc243 | 538 | #define audit_signals 0 |
1da177e4 LT |
539 | #endif |
540 | ||
541 | #ifdef CONFIG_AUDIT | |
542 | /* These are defined in audit.c */ | |
543 | /* Public API */ | |
9796fdd8 | 544 | extern void audit_log(struct audit_context *ctx, gfp_t gfp_mask, |
9ad9ad38 DW |
545 | int type, const char *fmt, ...) |
546 | __attribute__((format(printf,4,5))); | |
1da177e4 | 547 | |
9796fdd8 | 548 | extern struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, int type); |
1da177e4 LT |
549 | extern void audit_log_format(struct audit_buffer *ab, |
550 | const char *fmt, ...) | |
551 | __attribute__((format(printf,2,3))); | |
552 | extern void audit_log_end(struct audit_buffer *ab); | |
de6bbd1d EP |
553 | extern int audit_string_contains_control(const char *string, |
554 | size_t len); | |
b556f8ad EP |
555 | extern void audit_log_n_hex(struct audit_buffer *ab, |
556 | const unsigned char *buf, | |
557 | size_t len); | |
558 | extern void audit_log_n_string(struct audit_buffer *ab, | |
559 | const char *buf, | |
560 | size_t n); | |
561 | #define audit_log_string(a,b) audit_log_n_string(a, b, strlen(b)); | |
562 | extern void audit_log_n_untrustedstring(struct audit_buffer *ab, | |
563 | const char *string, | |
564 | size_t n); | |
de6bbd1d | 565 | extern void audit_log_untrustedstring(struct audit_buffer *ab, |
83c7d091 | 566 | const char *string); |
1da177e4 LT |
567 | extern void audit_log_d_path(struct audit_buffer *ab, |
568 | const char *prefix, | |
44707fdf | 569 | struct path *path); |
522ed776 | 570 | extern void audit_log_lost(const char *message); |
9d57a7f9 AD |
571 | extern int audit_update_lsm_rules(void); |
572 | ||
fe7752ba | 573 | /* Private API (for audit.c only) */ |
d8de7247 | 574 | extern int audit_filter_user(struct netlink_skb_parms *cb); |
fe7752ba DW |
575 | extern int audit_filter_type(int type); |
576 | extern int audit_receive_filter(int type, int pid, int uid, int seq, | |
2532386f EP |
577 | void *data, size_t datasz, uid_t loginuid, |
578 | u32 sessionid, u32 sid); | |
522ed776 | 579 | extern int audit_enabled; |
1da177e4 | 580 | #else |
7b430437 | 581 | #define audit_log(c,g,t,f,...) do { ; } while (0) |
13774024 | 582 | #define audit_log_start(c,g,t) ({ NULL; }) |
1da177e4 LT |
583 | #define audit_log_vformat(b,f,a) do { ; } while (0) |
584 | #define audit_log_format(b,f,...) do { ; } while (0) | |
585 | #define audit_log_end(b) do { ; } while (0) | |
b556f8ad EP |
586 | #define audit_log_n_hex(a,b,l) do { ; } while (0) |
587 | #define audit_log_n_string(a,c,l) do { ; } while (0) | |
588 | #define audit_log_string(a,c) do { ; } while (0) | |
9c937dcc | 589 | #define audit_log_n_untrustedstring(a,n,s) do { ; } while (0) |
b556f8ad | 590 | #define audit_log_untrustedstring(a,s) do { ; } while (0) |
44707fdf | 591 | #define audit_log_d_path(b, p, d) do { ; } while (0) |
522ed776 | 592 | #define audit_enabled 0 |
1da177e4 LT |
593 | #endif |
594 | #endif | |
595 | #endif |