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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 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#ifndef _LINUX_AUDIT_H_
24#define _LINUX_AUDIT_H_
25
David Woodhousef001e472006-04-27 00:11:01 +010026#include <linux/sched.h>
Mike Frysingerc0a3a202013-01-11 14:32:13 -080027#include <linux/ptrace.h>
David Howells607ca462012-10-13 10:46:48 +010028#include <uapi/linux/audit.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070029
Richard Guy Briggs84cb7772015-08-05 23:48:20 -040030#define AUDIT_INO_UNSET ((unsigned long)-1)
31#define AUDIT_DEV_UNSET ((dev_t)-1)
32
Steve Grubbc2f0c7c2005-05-06 12:38:39 +010033struct audit_sig_info {
34 uid_t uid;
35 pid_t pid;
Al Viroe1396062006-05-25 10:19:47 -040036 char ctx[0];
Steve Grubbc2f0c7c2005-05-06 12:38:39 +010037};
38
Linus Torvalds1da177e2005-04-16 15:20:36 -070039struct audit_buffer;
40struct audit_context;
41struct inode;
David Woodhouse5bb289b2005-06-24 14:14:05 +010042struct netlink_skb_parms;
Alexey Dobriyan37721e12011-01-10 08:17:10 +020043struct path;
Al Viro473ae302006-04-26 14:04:08 -040044struct linux_binprm;
George C. Wilson20ca73b2006-05-24 16:09:55 -050045struct mq_attr;
46struct mqstat;
Ahmed S. Darwish9d57a7f2008-03-01 22:03:14 +020047struct audit_watch;
48struct audit_tree;
Eric W. Biederman099dd232014-02-28 20:36:55 -080049struct sk_buff;
Ahmed S. Darwish9d57a7f2008-03-01 22:03:14 +020050
51struct audit_krule {
Richard Guy Briggs041d7b92014-12-23 13:02:04 -050052 u32 pflags;
Ahmed S. Darwish9d57a7f2008-03-01 22:03:14 +020053 u32 flags;
54 u32 listnr;
55 u32 action;
56 u32 mask[AUDIT_BITMASK_SIZE];
57 u32 buflen; /* for data alloc on list rules */
58 u32 field_count;
59 char *filterkey; /* ties events to rules */
60 struct audit_field *fields;
61 struct audit_field *arch_f; /* quick access to arch field */
62 struct audit_field *inode_f; /* quick access to an inode field */
63 struct audit_watch *watch; /* associated watch */
64 struct audit_tree *tree; /* associated watched tree */
Richard Guy Briggs34d99af52015-08-05 16:29:37 -040065 struct audit_fsnotify_mark *exe;
Ahmed S. Darwish9d57a7f2008-03-01 22:03:14 +020066 struct list_head rlist; /* entry in audit_{watch,tree}.rules list */
Al Viroe45aa212008-12-15 01:17:50 -050067 struct list_head list; /* for AUDIT_LIST* purposes only */
Al Viro0590b932008-12-14 23:45:27 -050068 u64 prio;
Ahmed S. Darwish9d57a7f2008-03-01 22:03:14 +020069};
70
Richard Guy Briggs041d7b92014-12-23 13:02:04 -050071/* Flag to indicate legacy AUDIT_LOGINUID unset usage */
72#define AUDIT_LOGINUID_LEGACY 0x1
73
Ahmed S. Darwish9d57a7f2008-03-01 22:03:14 +020074struct audit_field {
75 u32 type;
Richard Guy Briggs219ca392014-03-26 07:26:47 -040076 union {
77 u32 val;
78 kuid_t uid;
79 kgid_t gid;
80 struct {
81 char *lsm_str;
82 void *lsm_rule;
83 };
84 };
Ahmed S. Darwish9d57a7f2008-03-01 22:03:14 +020085 u32 op;
Ahmed S. Darwish9d57a7f2008-03-01 22:03:14 +020086};
Linus Torvalds1da177e2005-04-16 15:20:36 -070087
Eric Parisb0fed402013-05-22 12:54:49 -040088extern int is_audit_feature_set(int which);
89
Al Virob9155432006-07-01 03:56:16 -040090extern int __init audit_register_class(int class, unsigned *list);
Al Viro55669bf2006-08-31 19:26:40 -040091extern int audit_classify_syscall(int abi, unsigned syscall);
Amy Griffise54dc242007-03-29 18:01:04 -040092extern int audit_classify_arch(int arch);
AKASHI Takahiro4b588412014-03-15 14:48:00 +090093/* only for compat system calls */
94extern unsigned compat_write_class[];
95extern unsigned compat_read_class[];
96extern unsigned compat_dir_class[];
97extern unsigned compat_chattr_class[];
98extern unsigned compat_signal_class[];
99
Bjorn Helgaas9e8beeb2014-10-13 18:58:48 -0600100extern int audit_classify_compat_syscall(int abi, unsigned syscall);
Jeff Layton78e2e802012-10-10 15:25:22 -0400101
102/* audit_names->type values */
103#define AUDIT_TYPE_UNKNOWN 0 /* we don't know yet */
104#define AUDIT_TYPE_NORMAL 1 /* a "normal" audit record */
Jeff Laytonbfcec702012-10-10 15:25:23 -0400105#define AUDIT_TYPE_PARENT 2 /* a parent audit record */
Jeff Layton4fa6b5e2012-10-10 15:25:25 -0400106#define AUDIT_TYPE_CHILD_DELETE 3 /* a child being deleted */
107#define AUDIT_TYPE_CHILD_CREATE 4 /* a child being created */
Jeff Layton78e2e802012-10-10 15:25:22 -0400108
Chen Gang2950fa92013-04-07 16:55:23 +0800109/* maximized args number that audit_socketcall can process */
110#define AUDITSC_ARGS 6
111
Peter Hurley2e28d382016-01-09 22:55:33 -0800112/* bit values for ->signal->audit_tty */
113#define AUDIT_TTY_ENABLE BIT(0)
114#define AUDIT_TTY_LOG_PASSWD BIT(1)
115
Jeff Layton91a27b22012-10-10 15:25:28 -0400116struct filename;
117
Eric Paris4d3fb702013-04-30 09:53:34 -0400118extern void audit_log_session_info(struct audit_buffer *ab);
119
Paul Moore96368702016-01-13 09:18:55 -0500120#ifdef CONFIG_AUDIT
121/* These are defined in audit.c */
122 /* Public API */
123extern __printf(4, 5)
124void audit_log(struct audit_context *ctx, gfp_t gfp_mask, int type,
125 const char *fmt, ...);
126
127extern struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, int type);
128extern __printf(2, 3)
129void audit_log_format(struct audit_buffer *ab, const char *fmt, ...);
130extern void audit_log_end(struct audit_buffer *ab);
131extern bool audit_string_contains_control(const char *string,
132 size_t len);
133extern void audit_log_n_hex(struct audit_buffer *ab,
134 const unsigned char *buf,
135 size_t len);
136extern void audit_log_n_string(struct audit_buffer *ab,
137 const char *buf,
138 size_t n);
139extern void audit_log_n_untrustedstring(struct audit_buffer *ab,
140 const char *string,
141 size_t n);
142extern void audit_log_untrustedstring(struct audit_buffer *ab,
143 const char *string);
144extern void audit_log_d_path(struct audit_buffer *ab,
145 const char *prefix,
146 const struct path *path);
147extern void audit_log_key(struct audit_buffer *ab,
148 char *key);
149extern void audit_log_link_denied(const char *operation,
150 struct path *link);
151extern void audit_log_lost(const char *message);
152#ifdef CONFIG_SECURITY
153extern void audit_log_secctx(struct audit_buffer *ab, u32 secid);
154#else
155static inline void audit_log_secctx(struct audit_buffer *ab, u32 secid)
156{ }
157#endif
158
159extern int audit_log_task_context(struct audit_buffer *ab);
160extern void audit_log_task_info(struct audit_buffer *ab,
161 struct task_struct *tsk);
162
163extern int audit_update_lsm_rules(void);
164
165 /* Private API (for audit.c only) */
Paul Moore96368702016-01-13 09:18:55 -0500166extern int audit_rule_change(int type, __u32 portid, int seq,
167 void *data, size_t datasz);
168extern int audit_list_rules_send(struct sk_buff *request_skb, int seq);
169
170extern u32 audit_enabled;
171#else /* CONFIG_AUDIT */
172static inline __printf(4, 5)
173void audit_log(struct audit_context *ctx, gfp_t gfp_mask, int type,
174 const char *fmt, ...)
175{ }
176static inline struct audit_buffer *audit_log_start(struct audit_context *ctx,
177 gfp_t gfp_mask, int type)
178{
179 return NULL;
180}
181static inline __printf(2, 3)
182void audit_log_format(struct audit_buffer *ab, const char *fmt, ...)
183{ }
184static inline void audit_log_end(struct audit_buffer *ab)
185{ }
186static inline void audit_log_n_hex(struct audit_buffer *ab,
187 const unsigned char *buf, size_t len)
188{ }
189static inline void audit_log_n_string(struct audit_buffer *ab,
190 const char *buf, size_t n)
191{ }
192static inline void audit_log_n_untrustedstring(struct audit_buffer *ab,
193 const char *string, size_t n)
194{ }
195static inline void audit_log_untrustedstring(struct audit_buffer *ab,
196 const char *string)
197{ }
198static inline void audit_log_d_path(struct audit_buffer *ab,
199 const char *prefix,
200 const struct path *path)
201{ }
202static inline void audit_log_key(struct audit_buffer *ab, char *key)
203{ }
204static inline void audit_log_link_denied(const char *string,
205 const struct path *link)
206{ }
207static inline void audit_log_secctx(struct audit_buffer *ab, u32 secid)
208{ }
209static inline int audit_log_task_context(struct audit_buffer *ab)
210{
211 return 0;
212}
213static inline void audit_log_task_info(struct audit_buffer *ab,
214 struct task_struct *tsk)
215{ }
216#define audit_enabled 0
217#endif /* CONFIG_AUDIT */
218
Chris Metcalf312103d2014-03-25 09:25:41 -0400219#ifdef CONFIG_AUDIT_COMPAT_GENERIC
Eric Paris356750e2014-03-24 12:13:48 -0400220#define audit_is_compat(arch) (!((arch) & __AUDIT_ARCH_64BIT))
221#else
222#define audit_is_compat(arch) false
223#endif
224
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225#ifdef CONFIG_AUDITSYSCALL
Eric Parisa9ebe0b2014-04-22 11:46:16 -0400226#include <asm/syscall.h> /* for syscall_get_arch() */
227
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228/* These are defined in auditsc.c */
229 /* Public API */
230extern int audit_alloc(struct task_struct *task);
Eric Parisa4ff8db2012-01-03 14:23:07 -0500231extern void __audit_free(struct task_struct *task);
Richard Guy Briggsb4f0d372014-03-04 10:38:06 -0500232extern void __audit_syscall_entry(int major, unsigned long a0, unsigned long a1,
Eric Parisb05d8442012-01-03 14:23:06 -0500233 unsigned long a2, unsigned long a3);
Eric Parisd7e75282012-01-03 14:23:06 -0500234extern void __audit_syscall_exit(int ret_success, long ret_value);
Jeff Layton7ac86262012-10-10 15:25:28 -0400235extern struct filename *__audit_reusename(const __user char *uptr);
Jeff Layton91a27b22012-10-10 15:25:28 -0400236extern void __audit_getname(struct filename *name);
Jeff Layton79f65302013-07-08 15:59:36 -0700237
238#define AUDIT_INODE_PARENT 1 /* dentry represents the parent */
239#define AUDIT_INODE_HIDDEN 2 /* audit record should be hidden */
Jeff Laytonadb5c242012-10-10 16:43:13 -0400240extern void __audit_inode(struct filename *name, const struct dentry *dentry,
Jeff Layton79f65302013-07-08 15:59:36 -0700241 unsigned int flags);
Al Viro9f45f5b2014-10-31 17:44:57 -0400242extern void __audit_file(const struct file *);
Andreas Gruenbacherd6335d72015-12-24 11:09:39 -0500243extern void __audit_inode_child(struct inode *parent,
Jeff Layton4fa6b5e2012-10-10 15:25:25 -0400244 const struct dentry *dentry,
245 const unsigned char type);
Kees Cook3dc1c1b2012-04-12 16:47:58 -0500246extern void __audit_seccomp(unsigned long syscall, long signr, int code);
Al Viroa5cb0132007-03-20 13:58:35 -0400247extern void __audit_ptrace(struct task_struct *t);
248
Yaowei Bai36734812015-11-04 08:23:51 -0500249static inline bool audit_dummy_context(void)
Al Virod51374a2006-08-03 10:59:26 -0400250{
251 void *p = current->audit_context;
252 return !p || *(int *)p;
253}
Eric Parisa4ff8db2012-01-03 14:23:07 -0500254static inline void audit_free(struct task_struct *task)
255{
256 if (unlikely(task->audit_context))
257 __audit_free(task);
258}
Eric Paris91397402014-03-11 13:29:28 -0400259static inline void audit_syscall_entry(int major, unsigned long a0,
Eric Parisb05d8442012-01-03 14:23:06 -0500260 unsigned long a1, unsigned long a2,
261 unsigned long a3)
262{
Anton Blanchardcdee3902013-01-09 10:46:17 +1100263 if (unlikely(current->audit_context))
Richard Guy Briggsb4f0d372014-03-04 10:38:06 -0500264 __audit_syscall_entry(major, a0, a1, a2, a3);
Eric Parisb05d8442012-01-03 14:23:06 -0500265}
Eric Parisd7e75282012-01-03 14:23:06 -0500266static inline void audit_syscall_exit(void *pt_regs)
267{
268 if (unlikely(current->audit_context)) {
269 int success = is_syscall_success(pt_regs);
AKASHI Takahiro06bdadd2014-01-13 13:33:09 -0800270 long return_code = regs_return_value(pt_regs);
Eric Parisd7e75282012-01-03 14:23:06 -0500271
272 __audit_syscall_exit(success, return_code);
273 }
274}
Jeff Layton7ac86262012-10-10 15:25:28 -0400275static inline struct filename *audit_reusename(const __user char *name)
276{
277 if (unlikely(!audit_dummy_context()))
278 return __audit_reusename(name);
279 return NULL;
280}
Jeff Layton91a27b22012-10-10 15:25:28 -0400281static inline void audit_getname(struct filename *name)
Al Virod8945bb52006-05-18 16:01:30 -0400282{
Al Viro5ac3a9c2006-07-16 06:38:45 -0400283 if (unlikely(!audit_dummy_context()))
Al Virod8945bb52006-05-18 16:01:30 -0400284 __audit_getname(name);
285}
Jeff Layton79f65302013-07-08 15:59:36 -0700286static inline void audit_inode(struct filename *name,
287 const struct dentry *dentry,
Jeff Laytonbfcec702012-10-10 15:25:23 -0400288 unsigned int parent) {
Jeff Layton79f65302013-07-08 15:59:36 -0700289 if (unlikely(!audit_dummy_context())) {
290 unsigned int flags = 0;
291 if (parent)
292 flags |= AUDIT_INODE_PARENT;
293 __audit_inode(name, dentry, flags);
294 }
295}
Al Viro9f45f5b2014-10-31 17:44:57 -0400296static inline void audit_file(struct file *file)
297{
298 if (unlikely(!audit_dummy_context()))
299 __audit_file(file);
300}
Jeff Layton79f65302013-07-08 15:59:36 -0700301static inline void audit_inode_parent_hidden(struct filename *name,
302 const struct dentry *dentry)
303{
Al Viro5ac3a9c2006-07-16 06:38:45 -0400304 if (unlikely(!audit_dummy_context()))
Jeff Layton79f65302013-07-08 15:59:36 -0700305 __audit_inode(name, dentry,
306 AUDIT_INODE_PARENT | AUDIT_INODE_HIDDEN);
Amy Griffis73241cc2005-11-03 16:00:25 +0000307}
Andreas Gruenbacherd6335d72015-12-24 11:09:39 -0500308static inline void audit_inode_child(struct inode *parent,
Jeff Layton4fa6b5e2012-10-10 15:25:25 -0400309 const struct dentry *dentry,
310 const unsigned char type) {
Al Viro5ac3a9c2006-07-16 06:38:45 -0400311 if (unlikely(!audit_dummy_context()))
Jeff Layton4fa6b5e2012-10-10 15:25:25 -0400312 __audit_inode_child(parent, dentry, type);
Amy Griffis73241cc2005-11-03 16:00:25 +0000313}
Steve Grubb0a4ff8c2007-04-19 10:28:21 -0400314void audit_core_dumps(long signr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315
Kees Cook3dc1c1b2012-04-12 16:47:58 -0500316static inline void audit_seccomp(unsigned long syscall, long signr, int code)
Eric Paris85e7bac2012-01-03 14:23:05 -0500317{
Paul Moore96368702016-01-13 09:18:55 -0500318 if (!audit_enabled)
319 return;
320
Kees Cook7b9205b2013-01-11 14:32:05 -0800321 /* Force a record to be reported if a signal was delivered. */
322 if (signr || unlikely(!audit_dummy_context()))
Kees Cook3dc1c1b2012-04-12 16:47:58 -0500323 __audit_seccomp(syscall, signr, code);
Eric Paris85e7bac2012-01-03 14:23:05 -0500324}
325
Al Viroa5cb0132007-03-20 13:58:35 -0400326static inline void audit_ptrace(struct task_struct *t)
327{
328 if (unlikely(!audit_dummy_context()))
329 __audit_ptrace(t);
330}
331
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332 /* Private API (for audit.c only) */
David Woodhousebfb44962005-05-21 21:08:09 +0100333extern unsigned int audit_serial(void);
Al Viro48887e62008-12-06 01:05:50 -0500334extern int auditsc_get_stamp(struct audit_context *ctx,
David Woodhousebfb44962005-05-21 21:08:09 +0100335 struct timespec *t, unsigned int *serial);
Kees Cook9321d522012-10-04 17:11:11 -0700336extern int audit_set_loginuid(kuid_t loginuid);
337
338static inline kuid_t audit_get_loginuid(struct task_struct *tsk)
339{
340 return tsk->loginuid;
341}
342
Richard Guy Briggsb6cfee42013-11-26 18:01:36 -0500343static inline unsigned int audit_get_sessionid(struct task_struct *tsk)
Kees Cook9321d522012-10-04 17:11:11 -0700344{
345 return tsk->sessionid;
346}
347
Al Viroa33e6752008-12-10 03:40:06 -0500348extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp);
Al Viro2570ebb2011-07-27 14:03:22 -0400349extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode);
Richard Guy Briggsd9cfea92013-10-30 17:56:13 -0400350extern void __audit_bprm(struct linux_binprm *bprm);
Chen Gang2950fa92013-04-07 16:55:23 +0800351extern int __audit_socketcall(int nargs, unsigned long *args);
Eric Paris07c49412012-01-03 14:23:07 -0500352extern int __audit_sockaddr(int len, void *addr);
Al Viro157cf642008-12-14 04:57:47 -0500353extern void __audit_fd_pair(int fd1, int fd2);
Al Virodf0a4282011-07-26 05:26:10 -0400354extern void __audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr);
Al Viroc32c8af2008-12-14 03:46:48 -0500355extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout);
Al Viro20114f72008-12-10 07:16:12 -0500356extern void __audit_mq_notify(mqd_t mqdes, const struct sigevent *notification);
Al Viro73929062008-12-10 06:58:59 -0500357extern void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat);
David Howellsd84f4f92008-11-14 10:39:23 +1100358extern int __audit_log_bprm_fcaps(struct linux_binprm *bprm,
359 const struct cred *new,
360 const struct cred *old);
Eric W. Biedermanca24a232013-03-19 00:02:25 -0700361extern void __audit_log_capset(const struct cred *new, const struct cred *old);
Al Viro120a7952010-10-30 02:54:44 -0400362extern void __audit_mmap_fd(int fd, int flags);
Al Virod8945bb52006-05-18 16:01:30 -0400363
Al Viroa33e6752008-12-10 03:40:06 -0500364static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp)
Al Virod8945bb52006-05-18 16:01:30 -0400365{
Al Viro5ac3a9c2006-07-16 06:38:45 -0400366 if (unlikely(!audit_dummy_context()))
Al Viroa33e6752008-12-10 03:40:06 -0500367 __audit_ipc_obj(ipcp);
Al Virod8945bb52006-05-18 16:01:30 -0400368}
Al Viro157cf642008-12-14 04:57:47 -0500369static inline void audit_fd_pair(int fd1, int fd2)
Al Virodb349502007-02-07 01:48:00 -0500370{
371 if (unlikely(!audit_dummy_context()))
Al Viro157cf642008-12-14 04:57:47 -0500372 __audit_fd_pair(fd1, fd2);
Al Virodb349502007-02-07 01:48:00 -0500373}
Al Viro2570ebb2011-07-27 14:03:22 -0400374static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode)
Al Virod8945bb52006-05-18 16:01:30 -0400375{
Al Viro5ac3a9c2006-07-16 06:38:45 -0400376 if (unlikely(!audit_dummy_context()))
Al Viroe816f372008-12-10 03:47:15 -0500377 __audit_ipc_set_perm(qbytes, uid, gid, mode);
Al Virod8945bb52006-05-18 16:01:30 -0400378}
Richard Guy Briggs9410d222013-10-30 18:05:24 -0400379static inline void audit_bprm(struct linux_binprm *bprm)
Eric Paris07c49412012-01-03 14:23:07 -0500380{
381 if (unlikely(!audit_dummy_context()))
Richard Guy Briggsd9cfea92013-10-30 17:56:13 -0400382 __audit_bprm(bprm);
Eric Paris07c49412012-01-03 14:23:07 -0500383}
Chen Gang2950fa92013-04-07 16:55:23 +0800384static inline int audit_socketcall(int nargs, unsigned long *args)
Eric Paris07c49412012-01-03 14:23:07 -0500385{
386 if (unlikely(!audit_dummy_context()))
Chen Gang2950fa92013-04-07 16:55:23 +0800387 return __audit_socketcall(nargs, args);
388 return 0;
Eric Paris07c49412012-01-03 14:23:07 -0500389}
390static inline int audit_sockaddr(int len, void *addr)
391{
392 if (unlikely(!audit_dummy_context()))
393 return __audit_sockaddr(len, addr);
394 return 0;
395}
Al Virodf0a4282011-07-26 05:26:10 -0400396static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
George C. Wilson20ca73b2006-05-24 16:09:55 -0500397{
Al Viro5ac3a9c2006-07-16 06:38:45 -0400398 if (unlikely(!audit_dummy_context()))
Al Viro564f6992008-12-14 04:02:26 -0500399 __audit_mq_open(oflag, mode, attr);
George C. Wilson20ca73b2006-05-24 16:09:55 -0500400}
Al Viroc32c8af2008-12-14 03:46:48 -0500401static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout)
George C. Wilson20ca73b2006-05-24 16:09:55 -0500402{
Al Viro5ac3a9c2006-07-16 06:38:45 -0400403 if (unlikely(!audit_dummy_context()))
Al Viroc32c8af2008-12-14 03:46:48 -0500404 __audit_mq_sendrecv(mqdes, msg_len, msg_prio, abs_timeout);
George C. Wilson20ca73b2006-05-24 16:09:55 -0500405}
Al Viro20114f72008-12-10 07:16:12 -0500406static inline void audit_mq_notify(mqd_t mqdes, const struct sigevent *notification)
George C. Wilson20ca73b2006-05-24 16:09:55 -0500407{
Al Viro5ac3a9c2006-07-16 06:38:45 -0400408 if (unlikely(!audit_dummy_context()))
Al Viro20114f72008-12-10 07:16:12 -0500409 __audit_mq_notify(mqdes, notification);
George C. Wilson20ca73b2006-05-24 16:09:55 -0500410}
Al Viro73929062008-12-10 06:58:59 -0500411static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
George C. Wilson20ca73b2006-05-24 16:09:55 -0500412{
Al Viro5ac3a9c2006-07-16 06:38:45 -0400413 if (unlikely(!audit_dummy_context()))
Al Viro73929062008-12-10 06:58:59 -0500414 __audit_mq_getsetattr(mqdes, mqstat);
George C. Wilson20ca73b2006-05-24 16:09:55 -0500415}
Eric Paris3fc689e2008-11-11 21:48:18 +1100416
David Howellsd84f4f92008-11-14 10:39:23 +1100417static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm,
418 const struct cred *new,
419 const struct cred *old)
Eric Paris3fc689e2008-11-11 21:48:18 +1100420{
421 if (unlikely(!audit_dummy_context()))
David Howellsd84f4f92008-11-14 10:39:23 +1100422 return __audit_log_bprm_fcaps(bprm, new, old);
423 return 0;
Eric Paris3fc689e2008-11-11 21:48:18 +1100424}
425
Eric W. Biedermanca24a232013-03-19 00:02:25 -0700426static inline void audit_log_capset(const struct cred *new,
David Howellsd84f4f92008-11-14 10:39:23 +1100427 const struct cred *old)
Eric Parise68b75a02008-11-11 21:48:22 +1100428{
429 if (unlikely(!audit_dummy_context()))
Eric W. Biedermanca24a232013-03-19 00:02:25 -0700430 __audit_log_capset(new, old);
Eric Parise68b75a02008-11-11 21:48:22 +1100431}
432
Al Viro120a7952010-10-30 02:54:44 -0400433static inline void audit_mmap_fd(int fd, int flags)
434{
435 if (unlikely(!audit_dummy_context()))
436 __audit_mmap_fd(fd, flags);
437}
438
Al Viro471a5c72006-07-10 08:29:24 -0400439extern int audit_n_rules;
Amy Griffise54dc242007-03-29 18:01:04 -0400440extern int audit_signals;
Eric Parisd7e75282012-01-03 14:23:06 -0500441#else /* CONFIG_AUDITSYSCALL */
Kees Cook9321d522012-10-04 17:11:11 -0700442static inline int audit_alloc(struct task_struct *task)
443{
444 return 0;
445}
446static inline void audit_free(struct task_struct *task)
447{ }
Eric Paris91397402014-03-11 13:29:28 -0400448static inline void audit_syscall_entry(int major, unsigned long a0,
Kees Cook9321d522012-10-04 17:11:11 -0700449 unsigned long a1, unsigned long a2,
450 unsigned long a3)
451{ }
452static inline void audit_syscall_exit(void *pt_regs)
453{ }
Yaowei Bai36734812015-11-04 08:23:51 -0500454static inline bool audit_dummy_context(void)
Kees Cook9321d522012-10-04 17:11:11 -0700455{
Yaowei Bai36734812015-11-04 08:23:51 -0500456 return true;
Kees Cook9321d522012-10-04 17:11:11 -0700457}
Jeff Layton7ac86262012-10-10 15:25:28 -0400458static inline struct filename *audit_reusename(const __user char *name)
459{
460 return NULL;
461}
Jeff Layton91a27b22012-10-10 15:25:28 -0400462static inline void audit_getname(struct filename *name)
Kees Cook9321d522012-10-04 17:11:11 -0700463{ }
Jeff Laytonadb5c242012-10-10 16:43:13 -0400464static inline void __audit_inode(struct filename *name,
465 const struct dentry *dentry,
Jeff Layton79f65302013-07-08 15:59:36 -0700466 unsigned int flags)
Kees Cook9321d522012-10-04 17:11:11 -0700467{ }
Andreas Gruenbacherd6335d72015-12-24 11:09:39 -0500468static inline void __audit_inode_child(struct inode *parent,
Jeff Layton4fa6b5e2012-10-10 15:25:25 -0400469 const struct dentry *dentry,
470 const unsigned char type)
Kees Cook9321d522012-10-04 17:11:11 -0700471{ }
Jeff Laytonadb5c242012-10-10 16:43:13 -0400472static inline void audit_inode(struct filename *name,
473 const struct dentry *dentry,
Jeff Laytonbfcec702012-10-10 15:25:23 -0400474 unsigned int parent)
Kees Cook9321d522012-10-04 17:11:11 -0700475{ }
Al Viro9f45f5b2014-10-31 17:44:57 -0400476static inline void audit_file(struct file *file)
477{
478}
Jeff Layton79f65302013-07-08 15:59:36 -0700479static inline void audit_inode_parent_hidden(struct filename *name,
480 const struct dentry *dentry)
481{ }
Andreas Gruenbacherd6335d72015-12-24 11:09:39 -0500482static inline void audit_inode_child(struct inode *parent,
Jeff Layton4fa6b5e2012-10-10 15:25:25 -0400483 const struct dentry *dentry,
484 const unsigned char type)
Kees Cook9321d522012-10-04 17:11:11 -0700485{ }
486static inline void audit_core_dumps(long signr)
487{ }
488static inline void __audit_seccomp(unsigned long syscall, long signr, int code)
489{ }
490static inline void audit_seccomp(unsigned long syscall, long signr, int code)
491{ }
492static inline int auditsc_get_stamp(struct audit_context *ctx,
493 struct timespec *t, unsigned int *serial)
494{
495 return 0;
496}
497static inline kuid_t audit_get_loginuid(struct task_struct *tsk)
498{
499 return INVALID_UID;
500}
Richard Guy Briggsb6cfee42013-11-26 18:01:36 -0500501static inline unsigned int audit_get_sessionid(struct task_struct *tsk)
Kees Cook9321d522012-10-04 17:11:11 -0700502{
503 return -1;
504}
Kees Cook9321d522012-10-04 17:11:11 -0700505static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp)
506{ }
507static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid,
508 gid_t gid, umode_t mode)
509{ }
Richard Guy Briggs9410d222013-10-30 18:05:24 -0400510static inline void audit_bprm(struct linux_binprm *bprm)
511{ }
Chen Gang2950fa92013-04-07 16:55:23 +0800512static inline int audit_socketcall(int nargs, unsigned long *args)
513{
514 return 0;
515}
Kees Cook9321d522012-10-04 17:11:11 -0700516static inline void audit_fd_pair(int fd1, int fd2)
517{ }
518static inline int audit_sockaddr(int len, void *addr)
519{
520 return 0;
521}
522static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
523{ }
524static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len,
525 unsigned int msg_prio,
526 const struct timespec *abs_timeout)
527{ }
528static inline void audit_mq_notify(mqd_t mqdes,
529 const struct sigevent *notification)
530{ }
531static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
532{ }
533static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm,
534 const struct cred *new,
535 const struct cred *old)
536{
537 return 0;
538}
Eric W. Biedermanca24a232013-03-19 00:02:25 -0700539static inline void audit_log_capset(const struct cred *new,
540 const struct cred *old)
Kees Cook9321d522012-10-04 17:11:11 -0700541{ }
542static inline void audit_mmap_fd(int fd, int flags)
543{ }
544static inline void audit_ptrace(struct task_struct *t)
545{ }
Al Viro471a5c72006-07-10 08:29:24 -0400546#define audit_n_rules 0
Amy Griffise54dc242007-03-29 18:01:04 -0400547#define audit_signals 0
Eric Parisd7e75282012-01-03 14:23:06 -0500548#endif /* CONFIG_AUDITSYSCALL */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700549
Eric W. Biederman780a7652013-04-09 02:22:10 -0700550static inline bool audit_loginuid_set(struct task_struct *tsk)
551{
552 return uid_valid(audit_get_loginuid(tsk));
553}
554
Kees Cook9321d522012-10-04 17:11:11 -0700555static inline void audit_log_string(struct audit_buffer *ab, const char *buf)
556{
557 audit_log_n_string(ab, buf, strlen(buf));
558}
559
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560#endif