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85c87212005-04-29 16:23:29 +01001/* audit.h -- Auditing support
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 *
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
Jeff Dike3b46e652007-03-06 01:42:17 -080027#include <linux/types.h>
David Woodhousef001e472006-04-27 00:11:01 +010028#include <linux/elf-em.h>
2fd6f582005-04-29 16:08:28 +010029
Steve Grubbc0404992005-05-13 18:17:42 +010030/* 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
Steve Grubb90d526c2005-11-03 15:48:08 +000036 * 1500 - 1599 kernel LSPP events
37 * 1600 - 1699 kernel crypto events
Steve Grubb5bdb9882005-12-03 08:39:35 -050038 * 1700 - 1799 kernel anomaly records
39 * 1800 - 1999 future kernel use (maybe integrity labels and related events)
Steve Grubb90d526c2005-11-03 15:48:08 +000040 * 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)
Steve Grubbc0404992005-05-13 18:17:42 +010047 *
Steve Grubb90d526c2005-11-03 15:48:08 +000048 * Messages from 1000-1199 are bi-directional. 1200-1299 & 2100 - 2999 are
49 * exclusively user space. 1300-2099 is kernel --> user space
50 * communication.
Steve Grubbc0404992005-05-13 18:17:42 +010051 */
Steve Grubbc2f0c7c2005-05-06 12:38:39 +010052#define AUDIT_GET 1000 /* Get status */
53#define AUDIT_SET 1001 /* Set status (enable/disable/auditd) */
Amy Griffis93315ed2006-02-07 12:05:27 -050054#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 */
Steve Grubbc0404992005-05-13 18:17:42 +010057#define AUDIT_USER 1005 /* Message from userspace -- deprecated */
Steve Grubbc2f0c7c2005-05-06 12:38:39 +010058#define AUDIT_LOGIN 1006 /* Define the login id and information */
Steve Grubbc0404992005-05-13 18:17:42 +010059#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 */
Amy Griffis93315ed2006-02-07 12:05:27 -050063#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 */
Al Viro74c3cbe2007-07-22 08:04:18 -040066#define AUDIT_TRIM 1014 /* Trim junk from watched tree */
67#define AUDIT_MAKE_EQUIV 1015 /* Append to watched tree */
Miloslav Trmac6dc2c1b2007-08-23 10:19:53 +010068#define AUDIT_TTY_GET 1016 /* Get TTY auditing status */
69#define AUDIT_TTY_SET 1017 /* Set TTY auditing status */
Steve Grubbc0404992005-05-13 18:17:42 +010070
David Woodhouse4a4cd632005-06-22 14:56:47 +010071#define AUDIT_FIRST_USER_MSG 1100 /* Userspace messages mostly uninteresting to kernel */
72#define AUDIT_USER_AVC 1107 /* We filter this differently */
Miloslav Trmac522ed772007-07-15 23:40:56 -070073#define AUDIT_USER_TTY 1124 /* Non-ICANON TTY input meaning */
David Woodhouse209aba02005-05-18 10:21:07 +010074#define AUDIT_LAST_USER_MSG 1199
Steve Grubb90d526c2005-11-03 15:48:08 +000075#define AUDIT_FIRST_USER_MSG2 2100 /* More user space messages */
76#define AUDIT_LAST_USER_MSG2 2999
Steve Grubbc0404992005-05-13 18:17:42 +010077
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 */
Steve Grubbc8e649b2006-09-29 11:56:49 -040084/* #define AUDIT_FS_WATCH 1301 * Deprecated */
David Woodhouse8f37d472005-05-27 12:17:28 +010085#define AUDIT_PATH 1302 /* Filename path information */
Steve Grubbc0404992005-05-13 18:17:42 +010086#define AUDIT_IPC 1303 /* IPC record */
David Woodhouse3ec3b2f2005-05-17 12:08:48 +010087#define AUDIT_SOCKETCALL 1304 /* sys_socketcall arguments */
Steve Grubbc0404992005-05-13 18:17:42 +010088#define AUDIT_CONFIG_CHANGE 1305 /* Audit system configuration change */
David Woodhouse3ec3b2f2005-05-17 12:08:48 +010089#define AUDIT_SOCKADDR 1306 /* sockaddr copied as syscall arg */
David Woodhouse8f37d472005-05-27 12:17:28 +010090#define AUDIT_CWD 1307 /* Current working directory */
Al Viro473ae302006-04-26 14:04:08 -040091#define AUDIT_EXECVE 1309 /* execve arguments */
Steve Grubb073115d2006-04-02 17:07:33 -040092#define AUDIT_IPC_SET_PERM 1311 /* IPC new permissions record type */
George C. Wilson20ca73b2006-05-24 16:09:55 -050093#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 */
Steve Grubbc8e649b2006-09-29 11:56:49 -040097#define AUDIT_KERNEL_OTHER 1316 /* For use by 3rd party modules */
Al Virodb349502007-02-07 01:48:00 -050098#define AUDIT_FD_PAIR 1317 /* audit record for pipe/socketpair */
Al Viroa5cb0132007-03-20 13:58:35 -040099#define AUDIT_OBJ_PID 1318 /* ptrace target */
Miloslav Trmac522ed772007-07-15 23:40:56 -0700100#define AUDIT_TTY 1319 /* Input on an administrative TTY */
Steve Grubbc0404992005-05-13 18:17:42 +0100101
102#define AUDIT_AVC 1400 /* SE Linux avc denial or grant */
103#define AUDIT_SELINUX_ERR 1401 /* Internal SE Linux Errors */
Stephen Smalley01116102005-05-21 00:15:52 +0100104#define AUDIT_AVC_PATH 1402 /* dentry, vfsmount pair from avc */
Steve Grubbaf601e42006-01-04 14:08:39 +0000105#define AUDIT_MAC_POLICY_LOAD 1403 /* Policy file load */
106#define AUDIT_MAC_STATUS 1404 /* Changed enforcing,permissive,off */
107#define AUDIT_MAC_CONFIG_CHANGE 1405 /* Changes to booleans */
Paul Moore95d4e6b2006-09-29 17:05:05 -0700108#define AUDIT_MAC_UNLBL_ALLOW 1406 /* NetLabel: allow unlabeled traffic */
109#define AUDIT_MAC_CIPSOV4_ADD 1407 /* NetLabel: add CIPSOv4 DOI entry */
110#define AUDIT_MAC_CIPSOV4_DEL 1408 /* NetLabel: del CIPSOv4 DOI entry */
111#define AUDIT_MAC_MAP_ADD 1409 /* NetLabel: add LSM domain mapping */
112#define AUDIT_MAC_MAP_DEL 1410 /* NetLabel: del LSM domain mapping */
Joy Lattenab5f5e82007-09-17 11:51:22 -0700113#define AUDIT_MAC_IPSEC_ADDSA 1411 /* Not used */
114#define AUDIT_MAC_IPSEC_DELSA 1412 /* Not used */
115#define AUDIT_MAC_IPSEC_ADDSPD 1413 /* Not used */
116#define AUDIT_MAC_IPSEC_DELSPD 1414 /* Not used */
117#define AUDIT_MAC_IPSEC_EVENT 1415 /* Audit an IPSec event */
Paul Moore13541b32008-01-29 08:44:23 -0500118#define AUDIT_MAC_UNLBL_STCADD 1416 /* NetLabel: add a static label */
119#define AUDIT_MAC_UNLBL_STCDEL 1417 /* NetLabel: del a static label */
Steve Grubbc2f0c7c2005-05-06 12:38:39 +0100120
Steve Grubb5bdb9882005-12-03 08:39:35 -0500121#define AUDIT_FIRST_KERN_ANOM_MSG 1700
122#define AUDIT_LAST_KERN_ANOM_MSG 1799
123#define AUDIT_ANOM_PROMISCUOUS 1700 /* Device changed promiscuous mode */
Steve Grubb0a4ff8c2007-04-19 10:28:21 -0400124#define AUDIT_ANOM_ABEND 1701 /* Process ended abnormally */
Steve Grubb5bdb9882005-12-03 08:39:35 -0500125
Steve Grubbc2f0c7c2005-05-06 12:38:39 +0100126#define AUDIT_KERNEL 2000 /* Asynchronous audit record. NOT A REQUEST. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127
128/* Rule flags */
David Woodhouse0f45aa12005-06-19 19:35:50 +0100129#define AUDIT_FILTER_USER 0x00 /* Apply rule to user-generated messages */
130#define AUDIT_FILTER_TASK 0x01 /* Apply rule at task creation (not syscall) */
131#define AUDIT_FILTER_ENTRY 0x02 /* Apply rule at syscall entry */
132#define AUDIT_FILTER_WATCH 0x03 /* Apply rule to file system watches */
133#define AUDIT_FILTER_EXIT 0x04 /* Apply rule at syscall exit */
Dustin Kirklandc8edc802005-11-03 16:12:36 +0000134#define AUDIT_FILTER_TYPE 0x05 /* Apply rule at audit_log_start */
David Woodhouse0f45aa12005-06-19 19:35:50 +0100135
Dustin Kirklandc8edc802005-11-03 16:12:36 +0000136#define AUDIT_NR_FILTERS 6
David Woodhouse0f45aa12005-06-19 19:35:50 +0100137
138#define AUDIT_FILTER_PREPEND 0x10 /* Prepend to front of list */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139
140/* Rule actions */
141#define AUDIT_NEVER 0 /* Do not build context if rule matches */
142#define AUDIT_POSSIBLE 1 /* Build context if rule matches */
143#define AUDIT_ALWAYS 2 /* Generate audit record if rule matches */
144
145/* Rule structure sizes -- if these change, different AUDIT_ADD and
146 * AUDIT_LIST commands must be implemented. */
147#define AUDIT_MAX_FIELDS 64
Amy Griffis5adc8a62006-06-14 18:45:21 -0400148#define AUDIT_MAX_KEY_LEN 32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149#define AUDIT_BITMASK_SIZE 64
150#define AUDIT_WORD(nr) ((__u32)((nr)/32))
151#define AUDIT_BIT(nr) (1 << ((nr) - AUDIT_WORD(nr)*32))
152
Al Virob9155432006-07-01 03:56:16 -0400153#define AUDIT_SYSCALL_CLASSES 16
154#define AUDIT_CLASS_DIR_WRITE 0
155#define AUDIT_CLASS_DIR_WRITE_32 1
156#define AUDIT_CLASS_CHATTR 2
157#define AUDIT_CLASS_CHATTR_32 3
Al Virodc104fb2006-08-31 19:05:56 -0400158#define AUDIT_CLASS_READ 4
159#define AUDIT_CLASS_READ_32 5
160#define AUDIT_CLASS_WRITE 6
161#define AUDIT_CLASS_WRITE_32 7
Amy Griffis7f13da42007-03-29 18:00:37 -0400162#define AUDIT_CLASS_SIGNAL 8
163#define AUDIT_CLASS_SIGNAL_32 9
Al Virob9155432006-07-01 03:56:16 -0400164
Dustin Kirklandb63862f2005-11-03 15:41:46 +0000165/* This bitmask is used to validate user input. It represents all bits that
166 * are currently used in an audit field constant understood by the kernel.
167 * If you are adding a new #define AUDIT_<whatever>, please ensure that
168 * AUDIT_UNUSED_BITS is updated if need be. */
Eric Paris74f23452007-06-04 17:00:14 -0400169#define AUDIT_UNUSED_BITS 0x07FFFC00
Dustin Kirklandb63862f2005-11-03 15:41:46 +0000170
171
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172/* Rule fields */
173 /* These are useful when checking the
174 * task structure at task creation time
175 * (AUDIT_PER_TASK). */
176#define AUDIT_PID 0
177#define AUDIT_UID 1
178#define AUDIT_EUID 2
179#define AUDIT_SUID 3
180#define AUDIT_FSUID 4
181#define AUDIT_GID 5
182#define AUDIT_EGID 6
183#define AUDIT_SGID 7
184#define AUDIT_FSGID 8
185#define AUDIT_LOGINUID 9
186#define AUDIT_PERS 10
2fd6f582005-04-29 16:08:28 +0100187#define AUDIT_ARCH 11
Dustin Kirklandc8edc802005-11-03 16:12:36 +0000188#define AUDIT_MSGTYPE 12
Darrel Goeddel3a6b9f82006-06-29 16:56:39 -0500189#define AUDIT_SUBJ_USER 13 /* security label user */
190#define AUDIT_SUBJ_ROLE 14 /* security label role */
191#define AUDIT_SUBJ_TYPE 15 /* security label type */
192#define AUDIT_SUBJ_SEN 16 /* security label sensitivity label */
193#define AUDIT_SUBJ_CLR 17 /* security label clearance label */
Al Viro3c662512006-05-06 08:26:27 -0400194#define AUDIT_PPID 18
Darrel Goeddel3a6b9f82006-06-29 16:56:39 -0500195#define AUDIT_OBJ_USER 19
196#define AUDIT_OBJ_ROLE 20
197#define AUDIT_OBJ_TYPE 21
198#define AUDIT_OBJ_LEV_LOW 22
199#define AUDIT_OBJ_LEV_HIGH 23
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200
201 /* These are ONLY useful when checking
202 * at syscall exit time (AUDIT_AT_EXIT). */
203#define AUDIT_DEVMAJOR 100
204#define AUDIT_DEVMINOR 101
205#define AUDIT_INODE 102
206#define AUDIT_EXIT 103
207#define AUDIT_SUCCESS 104 /* exit >= 0; value ignored */
Amy Griffisf368c07d2006-04-07 16:55:56 -0400208#define AUDIT_WATCH 105
Al Viro55669bf2006-08-31 19:26:40 -0400209#define AUDIT_PERM 106
Al Viro74c3cbe2007-07-22 08:04:18 -0400210#define AUDIT_DIR 107
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211
212#define AUDIT_ARG0 200
213#define AUDIT_ARG1 (AUDIT_ARG0+1)
214#define AUDIT_ARG2 (AUDIT_ARG0+2)
215#define AUDIT_ARG3 (AUDIT_ARG0+3)
216
Amy Griffis5adc8a62006-06-14 18:45:21 -0400217#define AUDIT_FILTERKEY 210
218
Dustin Kirklandb63862f2005-11-03 15:41:46 +0000219#define AUDIT_NEGATE 0x80000000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220
Dustin Kirklandb63862f2005-11-03 15:41:46 +0000221/* These are the supported operators.
Eric Paris74f23452007-06-04 17:00:14 -0400222 * 4 2 1 8
223 * = > < ?
224 * ----------
225 * 0 0 0 0 00 nonsense
226 * 0 0 0 1 08 & bit mask
227 * 0 0 1 0 10 <
228 * 0 1 0 0 20 >
229 * 0 1 1 0 30 !=
230 * 1 0 0 0 40 =
231 * 1 0 0 1 48 &= bit test
232 * 1 0 1 0 50 <=
233 * 1 1 0 0 60 >=
234 * 1 1 1 1 78 all operators
Dustin Kirklandb63862f2005-11-03 15:41:46 +0000235 */
Eric Paris74f23452007-06-04 17:00:14 -0400236#define AUDIT_BIT_MASK 0x08000000
Dustin Kirklandb63862f2005-11-03 15:41:46 +0000237#define AUDIT_LESS_THAN 0x10000000
238#define AUDIT_GREATER_THAN 0x20000000
239#define AUDIT_NOT_EQUAL 0x30000000
240#define AUDIT_EQUAL 0x40000000
Eric Paris74f23452007-06-04 17:00:14 -0400241#define AUDIT_BIT_TEST (AUDIT_BIT_MASK|AUDIT_EQUAL)
Dustin Kirklandb63862f2005-11-03 15:41:46 +0000242#define AUDIT_LESS_THAN_OR_EQUAL (AUDIT_LESS_THAN|AUDIT_EQUAL)
243#define AUDIT_GREATER_THAN_OR_EQUAL (AUDIT_GREATER_THAN|AUDIT_EQUAL)
Eric Paris74f23452007-06-04 17:00:14 -0400244#define AUDIT_OPERATORS (AUDIT_EQUAL|AUDIT_NOT_EQUAL|AUDIT_BIT_MASK)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245
246/* Status symbols */
247 /* Mask values */
248#define AUDIT_STATUS_ENABLED 0x0001
249#define AUDIT_STATUS_FAILURE 0x0002
250#define AUDIT_STATUS_PID 0x0004
251#define AUDIT_STATUS_RATE_LIMIT 0x0008
252#define AUDIT_STATUS_BACKLOG_LIMIT 0x0010
253 /* Failure-to-log actions */
254#define AUDIT_FAIL_SILENT 0
255#define AUDIT_FAIL_PRINTK 1
256#define AUDIT_FAIL_PANIC 2
257
2fd6f582005-04-29 16:08:28 +0100258/* distinguish syscall tables */
259#define __AUDIT_ARCH_64BIT 0x80000000
260#define __AUDIT_ARCH_LE 0x40000000
261#define AUDIT_ARCH_ALPHA (EM_ALPHA|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
262#define AUDIT_ARCH_ARM (EM_ARM|__AUDIT_ARCH_LE)
263#define AUDIT_ARCH_ARMEB (EM_ARM)
264#define AUDIT_ARCH_CRIS (EM_CRIS|__AUDIT_ARCH_LE)
265#define AUDIT_ARCH_FRV (EM_FRV)
266#define AUDIT_ARCH_H8300 (EM_H8_300)
267#define AUDIT_ARCH_I386 (EM_386|__AUDIT_ARCH_LE)
268#define AUDIT_ARCH_IA64 (EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
269#define AUDIT_ARCH_M32R (EM_M32R)
270#define AUDIT_ARCH_M68K (EM_68K)
271#define AUDIT_ARCH_MIPS (EM_MIPS)
272#define AUDIT_ARCH_MIPSEL (EM_MIPS|__AUDIT_ARCH_LE)
273#define AUDIT_ARCH_MIPS64 (EM_MIPS|__AUDIT_ARCH_64BIT)
274#define AUDIT_ARCH_MIPSEL64 (EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
275#define AUDIT_ARCH_PARISC (EM_PARISC)
276#define AUDIT_ARCH_PARISC64 (EM_PARISC|__AUDIT_ARCH_64BIT)
277#define AUDIT_ARCH_PPC (EM_PPC)
278#define AUDIT_ARCH_PPC64 (EM_PPC64|__AUDIT_ARCH_64BIT)
279#define AUDIT_ARCH_S390 (EM_S390)
280#define AUDIT_ARCH_S390X (EM_S390|__AUDIT_ARCH_64BIT)
281#define AUDIT_ARCH_SH (EM_SH)
282#define AUDIT_ARCH_SHEL (EM_SH|__AUDIT_ARCH_LE)
283#define AUDIT_ARCH_SH64 (EM_SH|__AUDIT_ARCH_64BIT)
284#define AUDIT_ARCH_SHEL64 (EM_SH|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
285#define AUDIT_ARCH_SPARC (EM_SPARC)
David S. Millerf7ceba32005-07-10 19:29:45 -0700286#define AUDIT_ARCH_SPARC64 (EM_SPARCV9|__AUDIT_ARCH_64BIT)
2fd6f582005-04-29 16:08:28 +0100287#define AUDIT_ARCH_V850 (EM_V850|__AUDIT_ARCH_LE)
288#define AUDIT_ARCH_X86_64 (EM_X86_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
289
Al Viro55669bf2006-08-31 19:26:40 -0400290#define AUDIT_PERM_EXEC 1
291#define AUDIT_PERM_WRITE 2
292#define AUDIT_PERM_READ 4
293#define AUDIT_PERM_ATTR 8
294
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295struct audit_status {
296 __u32 mask; /* Bit mask for valid entries */
Steve Grubb23f32d12005-05-13 18:35:15 +0100297 __u32 enabled; /* 1 = enabled, 0 = disabled */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298 __u32 failure; /* Failure-to-log action */
299 __u32 pid; /* pid of auditd process */
300 __u32 rate_limit; /* messages rate limit (per second) */
301 __u32 backlog_limit; /* waiting messages limit */
302 __u32 lost; /* messages lost */
303 __u32 backlog; /* messages waiting in queue */
304};
305
Miloslav Trmac522ed772007-07-15 23:40:56 -0700306struct audit_tty_status {
307 __u32 enabled; /* 1 = enabled, 0 = disabled */
308};
309
Amy Griffis93315ed2006-02-07 12:05:27 -0500310/* audit_rule_data supports filter rules with both integer and string
311 * fields. It corresponds with AUDIT_ADD_RULE, AUDIT_DEL_RULE and
312 * AUDIT_LIST_RULES requests.
313 */
314struct audit_rule_data {
315 __u32 flags; /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */
316 __u32 action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */
317 __u32 field_count;
Steve Grubb5d330102006-01-09 09:48:17 -0500318 __u32 mask[AUDIT_BITMASK_SIZE]; /* syscall(s) affected */
Amy Griffis93315ed2006-02-07 12:05:27 -0500319 __u32 fields[AUDIT_MAX_FIELDS];
320 __u32 values[AUDIT_MAX_FIELDS];
321 __u32 fieldflags[AUDIT_MAX_FIELDS];
322 __u32 buflen; /* total length of string fields */
323 char buf[0]; /* string fields buffer */
324};
325
326/* audit_rule is supported to maintain backward compatibility with
327 * userspace. It supports integer fields only and corresponds to
328 * AUDIT_ADD, AUDIT_DEL and AUDIT_LIST requests.
329 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330struct audit_rule { /* for AUDIT_LIST, AUDIT_ADD, and AUDIT_DEL */
331 __u32 flags; /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */
332 __u32 action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */
333 __u32 field_count;
334 __u32 mask[AUDIT_BITMASK_SIZE];
335 __u32 fields[AUDIT_MAX_FIELDS];
336 __u32 values[AUDIT_MAX_FIELDS];
337};
338
339#ifdef __KERNEL__
David Woodhousef001e472006-04-27 00:11:01 +0100340#include <linux/sched.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341
Steve Grubbc2f0c7c2005-05-06 12:38:39 +0100342struct audit_sig_info {
343 uid_t uid;
344 pid_t pid;
Al Viroe1396062006-05-25 10:19:47 -0400345 char ctx[0];
Steve Grubbc2f0c7c2005-05-06 12:38:39 +0100346};
347
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348struct audit_buffer;
349struct audit_context;
350struct inode;
David Woodhouse5bb289b2005-06-24 14:14:05 +0100351struct netlink_skb_parms;
Al Viro473ae302006-04-26 14:04:08 -0400352struct linux_binprm;
George C. Wilson20ca73b2006-05-24 16:09:55 -0500353struct mq_attr;
354struct mqstat;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355
2fd6f582005-04-29 16:08:28 +0100356#define AUDITSC_INVALID 0
357#define AUDITSC_SUCCESS 1
358#define AUDITSC_FAILURE 2
359#define AUDITSC_RESULT(x) ( ((long)(x))<0?AUDITSC_FAILURE:AUDITSC_SUCCESS )
Al Virob9155432006-07-01 03:56:16 -0400360extern int __init audit_register_class(int class, unsigned *list);
Al Viro55669bf2006-08-31 19:26:40 -0400361extern int audit_classify_syscall(int abi, unsigned syscall);
Amy Griffise54dc242007-03-29 18:01:04 -0400362extern int audit_classify_arch(int arch);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363#ifdef CONFIG_AUDITSYSCALL
364/* These are defined in auditsc.c */
365 /* Public API */
366extern int audit_alloc(struct task_struct *task);
367extern void audit_free(struct task_struct *task);
Al Viro5411be52006-03-29 20:23:36 -0500368extern void audit_syscall_entry(int arch,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369 int major, unsigned long a0, unsigned long a1,
370 unsigned long a2, unsigned long a3);
Al Viro5411be52006-03-29 20:23:36 -0500371extern void audit_syscall_exit(int failed, long return_code);
Al Virod8945bb52006-05-18 16:01:30 -0400372extern void __audit_getname(const char *name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373extern void audit_putname(const char *name);
Al Viro5a190ae2007-06-07 12:19:32 -0400374extern void __audit_inode(const char *name, const struct dentry *dentry);
375extern void __audit_inode_child(const char *dname, const struct dentry *dentry,
Amy Griffis73d3ec52006-07-13 13:16:39 -0400376 const struct inode *parent);
Al Viroa5cb0132007-03-20 13:58:35 -0400377extern void __audit_ptrace(struct task_struct *t);
378
Al Virod51374a2006-08-03 10:59:26 -0400379static inline int audit_dummy_context(void)
380{
381 void *p = current->audit_context;
382 return !p || *(int *)p;
383}
Al Virod8945bb52006-05-18 16:01:30 -0400384static inline void audit_getname(const char *name)
385{
Al Viro5ac3a9c2006-07-16 06:38:45 -0400386 if (unlikely(!audit_dummy_context()))
Al Virod8945bb52006-05-18 16:01:30 -0400387 __audit_getname(name);
388}
Al Viro5a190ae2007-06-07 12:19:32 -0400389static inline void audit_inode(const char *name, const struct dentry *dentry) {
Al Viro5ac3a9c2006-07-16 06:38:45 -0400390 if (unlikely(!audit_dummy_context()))
Al Viro5a190ae2007-06-07 12:19:32 -0400391 __audit_inode(name, dentry);
Amy Griffis73241cc2005-11-03 16:00:25 +0000392}
393static inline void audit_inode_child(const char *dname,
Al Viro5a190ae2007-06-07 12:19:32 -0400394 const struct dentry *dentry,
Amy Griffis73d3ec52006-07-13 13:16:39 -0400395 const struct inode *parent) {
Al Viro5ac3a9c2006-07-16 06:38:45 -0400396 if (unlikely(!audit_dummy_context()))
Al Viro5a190ae2007-06-07 12:19:32 -0400397 __audit_inode_child(dname, dentry, parent);
Amy Griffis73241cc2005-11-03 16:00:25 +0000398}
Steve Grubb0a4ff8c2007-04-19 10:28:21 -0400399void audit_core_dumps(long signr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400
Al Viroa5cb0132007-03-20 13:58:35 -0400401static inline void audit_ptrace(struct task_struct *t)
402{
403 if (unlikely(!audit_dummy_context()))
404 __audit_ptrace(t);
405}
406
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407 /* Private API (for audit.c only) */
David Woodhousebfb44962005-05-21 21:08:09 +0100408extern unsigned int audit_serial(void);
409extern void auditsc_get_stamp(struct audit_context *ctx,
410 struct timespec *t, unsigned int *serial);
Steve Grubb456be6c2005-04-29 17:30:07 +0100411extern int audit_set_loginuid(struct task_struct *task, uid_t loginuid);
Al Virobfef93a2008-01-10 04:53:18 -0500412#define audit_get_loginuid(t) ((t)->loginuid)
Joy Latten161a09e2006-11-27 13:11:54 -0600413extern void audit_log_task_context(struct audit_buffer *ab);
Al Virod8945bb52006-05-18 16:01:30 -0400414extern int __audit_ipc_obj(struct kern_ipc_perm *ipcp);
415extern int __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode);
Al Viro473ae302006-04-26 14:04:08 -0400416extern int audit_bprm(struct linux_binprm *bprm);
David Woodhouse3ec3b2f2005-05-17 12:08:48 +0100417extern int audit_socketcall(int nargs, unsigned long *args);
418extern int audit_sockaddr(int len, void *addr);
Al Virodb349502007-02-07 01:48:00 -0500419extern int __audit_fd_pair(int fd1, int fd2);
Dustin Kirkland8c8570f2005-11-03 17:15:16 +0000420extern int audit_set_macxattr(const char *name);
George C. Wilson20ca73b2006-05-24 16:09:55 -0500421extern int __audit_mq_open(int oflag, mode_t mode, struct mq_attr __user *u_attr);
422extern int __audit_mq_timedsend(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec __user *u_abs_timeout);
423extern int __audit_mq_timedreceive(mqd_t mqdes, size_t msg_len, unsigned int __user *u_msg_prio, const struct timespec __user *u_abs_timeout);
424extern int __audit_mq_notify(mqd_t mqdes, const struct sigevent __user *u_notification);
425extern int __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat);
Al Virod8945bb52006-05-18 16:01:30 -0400426
427static inline int audit_ipc_obj(struct kern_ipc_perm *ipcp)
428{
Al Viro5ac3a9c2006-07-16 06:38:45 -0400429 if (unlikely(!audit_dummy_context()))
Al Virod8945bb52006-05-18 16:01:30 -0400430 return __audit_ipc_obj(ipcp);
431 return 0;
432}
Al Virodb349502007-02-07 01:48:00 -0500433static inline int audit_fd_pair(int fd1, int fd2)
434{
435 if (unlikely(!audit_dummy_context()))
436 return __audit_fd_pair(fd1, fd2);
437 return 0;
438}
Al Virod8945bb52006-05-18 16:01:30 -0400439static inline int audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode)
440{
Al Viro5ac3a9c2006-07-16 06:38:45 -0400441 if (unlikely(!audit_dummy_context()))
Al Virod8945bb52006-05-18 16:01:30 -0400442 return __audit_ipc_set_perm(qbytes, uid, gid, mode);
443 return 0;
444}
George C. Wilson20ca73b2006-05-24 16:09:55 -0500445static inline int audit_mq_open(int oflag, mode_t mode, struct mq_attr __user *u_attr)
446{
Al Viro5ac3a9c2006-07-16 06:38:45 -0400447 if (unlikely(!audit_dummy_context()))
George C. Wilson20ca73b2006-05-24 16:09:55 -0500448 return __audit_mq_open(oflag, mode, u_attr);
449 return 0;
450}
451static inline int audit_mq_timedsend(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec __user *u_abs_timeout)
452{
Al Viro5ac3a9c2006-07-16 06:38:45 -0400453 if (unlikely(!audit_dummy_context()))
George C. Wilson20ca73b2006-05-24 16:09:55 -0500454 return __audit_mq_timedsend(mqdes, msg_len, msg_prio, u_abs_timeout);
455 return 0;
456}
457static 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)
458{
Al Viro5ac3a9c2006-07-16 06:38:45 -0400459 if (unlikely(!audit_dummy_context()))
George C. Wilson20ca73b2006-05-24 16:09:55 -0500460 return __audit_mq_timedreceive(mqdes, msg_len, u_msg_prio, u_abs_timeout);
461 return 0;
462}
463static inline int audit_mq_notify(mqd_t mqdes, const struct sigevent __user *u_notification)
464{
Al Viro5ac3a9c2006-07-16 06:38:45 -0400465 if (unlikely(!audit_dummy_context()))
George C. Wilson20ca73b2006-05-24 16:09:55 -0500466 return __audit_mq_notify(mqdes, u_notification);
467 return 0;
468}
469static inline int audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
470{
Al Viro5ac3a9c2006-07-16 06:38:45 -0400471 if (unlikely(!audit_dummy_context()))
George C. Wilson20ca73b2006-05-24 16:09:55 -0500472 return __audit_mq_getsetattr(mqdes, mqstat);
473 return 0;
474}
Al Viro471a5c72006-07-10 08:29:24 -0400475extern int audit_n_rules;
Amy Griffise54dc242007-03-29 18:01:04 -0400476extern int audit_signals;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477#else
478#define audit_alloc(t) ({ 0; })
479#define audit_free(t) do { ; } while (0)
Al Viro5411be52006-03-29 20:23:36 -0500480#define audit_syscall_entry(ta,a,b,c,d,e) do { ; } while (0)
481#define audit_syscall_exit(f,r) do { ; } while (0)
Al Virod51374a2006-08-03 10:59:26 -0400482#define audit_dummy_context() 1
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483#define audit_getname(n) do { ; } while (0)
484#define audit_putname(n) do { ; } while (0)
Al Viro5a190ae2007-06-07 12:19:32 -0400485#define __audit_inode(n,d) do { ; } while (0)
Amy Griffis73241cc2005-11-03 16:00:25 +0000486#define __audit_inode_child(d,i,p) do { ; } while (0)
Al Viro5a190ae2007-06-07 12:19:32 -0400487#define audit_inode(n,d) do { ; } while (0)
Amy Griffis73241cc2005-11-03 16:00:25 +0000488#define audit_inode_child(d,i,p) do { ; } while (0)
Steve Grubb0a4ff8c2007-04-19 10:28:21 -0400489#define audit_core_dumps(i) do { ; } while (0)
David Woodhousebfb44962005-05-21 21:08:09 +0100490#define auditsc_get_stamp(c,t,s) do { BUG(); } while (0)
Al Viro0c11b942008-01-10 04:20:52 -0500491#define audit_get_loginuid(t) (-1)
Joy Latten161a09e2006-11-27 13:11:54 -0600492#define audit_log_task_context(b) do { ; } while (0)
Steve Grubb073115d2006-04-02 17:07:33 -0400493#define audit_ipc_obj(i) ({ 0; })
Linda Knippersac032212006-05-16 22:03:48 -0400494#define audit_ipc_set_perm(q,u,g,m) ({ 0; })
Al Viro473ae302006-04-26 14:04:08 -0400495#define audit_bprm(p) ({ 0; })
David Woodhouse3ec3b2f2005-05-17 12:08:48 +0100496#define audit_socketcall(n,a) ({ 0; })
Al Virodb349502007-02-07 01:48:00 -0500497#define audit_fd_pair(n,a) ({ 0; })
David Woodhouse3ec3b2f2005-05-17 12:08:48 +0100498#define audit_sockaddr(len, addr) ({ 0; })
Dustin Kirkland8c8570f2005-11-03 17:15:16 +0000499#define audit_set_macxattr(n) do { ; } while (0)
George C. Wilson20ca73b2006-05-24 16:09:55 -0500500#define audit_mq_open(o,m,a) ({ 0; })
501#define audit_mq_timedsend(d,l,p,t) ({ 0; })
502#define audit_mq_timedreceive(d,l,p,t) ({ 0; })
503#define audit_mq_notify(d,n) ({ 0; })
504#define audit_mq_getsetattr(d,s) ({ 0; })
Al Viroa5cb0132007-03-20 13:58:35 -0400505#define audit_ptrace(t) ((void)0)
Al Viro471a5c72006-07-10 08:29:24 -0400506#define audit_n_rules 0
Amy Griffise54dc242007-03-29 18:01:04 -0400507#define audit_signals 0
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508#endif
509
510#ifdef CONFIG_AUDIT
511/* These are defined in audit.c */
512 /* Public API */
Al Viro9796fdd2005-10-21 03:22:03 -0400513extern void audit_log(struct audit_context *ctx, gfp_t gfp_mask,
David Woodhouse9ad9ad32005-06-22 15:04:33 +0100514 int type, const char *fmt, ...)
515 __attribute__((format(printf,4,5)));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516
Al Viro9796fdd2005-10-21 03:22:03 -0400517extern struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, int type);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700518extern void audit_log_format(struct audit_buffer *ab,
519 const char *fmt, ...)
520 __attribute__((format(printf,2,3)));
521extern void audit_log_end(struct audit_buffer *ab);
83c7d092005-04-29 15:54:44 +0100522extern void audit_log_hex(struct audit_buffer *ab,
523 const unsigned char *buf,
524 size_t len);
Al Viro473ae302006-04-26 14:04:08 -0400525extern const char * audit_log_untrustedstring(struct audit_buffer *ab,
83c7d092005-04-29 15:54:44 +0100526 const char *string);
Amy Griffis9c937dc2006-06-08 23:19:31 -0400527extern const char * audit_log_n_untrustedstring(struct audit_buffer *ab,
528 size_t n,
529 const char *string);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530extern void audit_log_d_path(struct audit_buffer *ab,
531 const char *prefix,
532 struct dentry *dentry,
533 struct vfsmount *vfsmnt);
Miloslav Trmac522ed772007-07-15 23:40:56 -0700534extern void audit_log_lost(const char *message);
David Woodhousefe7752b2005-12-15 18:33:52 +0000535 /* Private API (for audit.c only) */
536extern int audit_filter_user(struct netlink_skb_parms *cb, int type);
537extern int audit_filter_type(int type);
538extern int audit_receive_filter(int type, int pid, int uid, int seq,
Steve Grubbce29b682006-04-01 18:29:34 -0500539 void *data, size_t datasz, uid_t loginuid, u32 sid);
Miloslav Trmac522ed772007-07-15 23:40:56 -0700540extern int audit_enabled;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700541#else
David Woodhouse7b430432005-07-02 13:50:40 +0100542#define audit_log(c,g,t,f,...) do { ; } while (0)
Badari Pulavarty13774022005-07-02 13:49:07 +0100543#define audit_log_start(c,g,t) ({ NULL; })
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544#define audit_log_vformat(b,f,a) do { ; } while (0)
545#define audit_log_format(b,f,...) do { ; } while (0)
546#define audit_log_end(b) do { ; } while (0)
83c7d092005-04-29 15:54:44 +0100547#define audit_log_hex(a,b,l) do { ; } while (0)
548#define audit_log_untrustedstring(a,s) do { ; } while (0)
Amy Griffis9c937dc2006-06-08 23:19:31 -0400549#define audit_log_n_untrustedstring(a,n,s) do { ; } while (0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700550#define audit_log_d_path(b,p,d,v) do { ; } while (0)
Miloslav Trmac522ed772007-07-15 23:40:56 -0700551#define audit_enabled 0
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552#endif
553#endif
554#endif