[linux-block.git] / include / linux / audit.h

/* audit.h -- Auditing support
 *
 * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina.
 * All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Written by Rickard E. (Rik) Faith <faith@redhat.com>
 *
 */
#ifndef _LINUX_AUDIT_H_
#define _LINUX_AUDIT_H_

#include <linux/sched.h>
#include <linux/ptrace.h>
#include <uapi/linux/audit.h>

struct audit_sig_info {
	uid_t		uid;
	pid_t		pid;
	char		ctx[0];
};

struct audit_buffer;
struct audit_context;
struct inode;
struct netlink_skb_parms;
struct path;
struct linux_binprm;
struct mq_attr;
struct mqstat;
struct audit_watch;
struct audit_tree;

struct audit_krule {
	int			vers_ops;
	u32			flags;
	u32			listnr;
	u32			action;
	u32			mask[AUDIT_BITMASK_SIZE];
	u32			buflen; /* for data alloc on list rules */
	u32			field_count;
	char			*filterkey; /* ties events to rules */
	struct audit_field	*fields;
	struct audit_field	*arch_f; /* quick access to arch field */
	struct audit_field	*inode_f; /* quick access to an inode field */
	struct audit_watch	*watch;	/* associated watch */
	struct audit_tree	*tree;	/* associated watched tree */
	struct list_head	rlist;	/* entry in audit_{watch,tree}.rules list */
	struct list_head	list;	/* for AUDIT_LIST* purposes only */
	u64			prio;
};

struct audit_field {
	u32				type;
	u32				val;
	kuid_t				uid;
	kgid_t				gid;
	u32				op;
	char				*lsm_str;
	void				*lsm_rule;
};

extern int is_audit_feature_set(int which);

extern int __init audit_register_class(int class, unsigned *list);
extern int audit_classify_syscall(int abi, unsigned syscall);
extern int audit_classify_arch(int arch);

/* audit_names->type values */
#define	AUDIT_TYPE_UNKNOWN	0	/* we don't know yet */
#define	AUDIT_TYPE_NORMAL	1	/* a "normal" audit record */
#define	AUDIT_TYPE_PARENT	2	/* a parent audit record */
#define	AUDIT_TYPE_CHILD_DELETE 3	/* a child being deleted */
#define	AUDIT_TYPE_CHILD_CREATE 4	/* a child being created */

/* maximized args number that audit_socketcall can process */
#define AUDITSC_ARGS		6

struct filename;

extern void audit_log_session_info(struct audit_buffer *ab);

#ifdef CONFIG_AUDITSYSCALL
/* These are defined in auditsc.c */
				/* Public API */
extern int  audit_alloc(struct task_struct *task);
extern void __audit_free(struct task_struct *task);
extern void __audit_syscall_entry(int arch,
				  int major, unsigned long a0, unsigned long a1,
				  unsigned long a2, unsigned long a3);
extern void __audit_syscall_exit(int ret_success, long ret_value);
extern struct filename *__audit_reusename(const __user char *uptr);
extern void __audit_getname(struct filename *name);
extern void audit_putname(struct filename *name);

#define AUDIT_INODE_PARENT	1	/* dentry represents the parent */
#define AUDIT_INODE_HIDDEN	2	/* audit record should be hidden */
extern void __audit_inode(struct filename *name, const struct dentry *dentry,
				unsigned int flags);
extern void __audit_inode_child(const struct inode *parent,
				const struct dentry *dentry,
				const unsigned char type);
extern void __audit_seccomp(unsigned long syscall, long signr, int code);
extern void __audit_ptrace(struct task_struct *t);

static inline int audit_dummy_context(void)
{
	void *p = current->audit_context;
	return !p || *(int *)p;
}
static inline void audit_free(struct task_struct *task)
{
	if (unlikely(task->audit_context))
		__audit_free(task);
}
static inline void audit_syscall_entry(int arch, int major, unsigned long a0,
				       unsigned long a1, unsigned long a2,
				       unsigned long a3)
{
	if (unlikely(current->audit_context))
		__audit_syscall_entry(arch, major, a0, a1, a2, a3);
}
static inline void audit_syscall_exit(void *pt_regs)
{
	if (unlikely(current->audit_context)) {
		int success = is_syscall_success(pt_regs);
		int return_code = regs_return_value(pt_regs);

		__audit_syscall_exit(success, return_code);
	}
}
static inline struct filename *audit_reusename(const __user char *name)
{
	if (unlikely(!audit_dummy_context()))
		return __audit_reusename(name);
	return NULL;
}
static inline void audit_getname(struct filename *name)
{
	if (unlikely(!audit_dummy_context()))
		__audit_getname(name);
}
static inline void audit_inode(struct filename *name,
				const struct dentry *dentry,
				unsigned int parent) {
	if (unlikely(!audit_dummy_context())) {
		unsigned int flags = 0;
		if (parent)
			flags |= AUDIT_INODE_PARENT;
		__audit_inode(name, dentry, flags);
	}
}
static inline void audit_inode_parent_hidden(struct filename *name,
						const struct dentry *dentry)
{
	if (unlikely(!audit_dummy_context()))
		__audit_inode(name, dentry,
				AUDIT_INODE_PARENT | AUDIT_INODE_HIDDEN);
}
static inline void audit_inode_child(const struct inode *parent,
				     const struct dentry *dentry,
				     const unsigned char type) {
	if (unlikely(!audit_dummy_context()))
		__audit_inode_child(parent, dentry, type);
}
void audit_core_dumps(long signr);

static inline void audit_seccomp(unsigned long syscall, long signr, int code)
{
	/* Force a record to be reported if a signal was delivered. */
	if (signr || unlikely(!audit_dummy_context()))
		__audit_seccomp(syscall, signr, code);
}

static inline void audit_ptrace(struct task_struct *t)
{
	if (unlikely(!audit_dummy_context()))
		__audit_ptrace(t);
}

				/* Private API (for audit.c only) */
extern unsigned int audit_serial(void);
extern int auditsc_get_stamp(struct audit_context *ctx,
			      struct timespec *t, unsigned int *serial);
extern int audit_set_loginuid(kuid_t loginuid);

static inline kuid_t audit_get_loginuid(struct task_struct *tsk)
{
	return tsk->loginuid;
}

static inline int audit_get_sessionid(struct task_struct *tsk)
{
	return tsk->sessionid;
}

extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp);
extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode);
extern int __audit_bprm(struct linux_binprm *bprm);
extern int __audit_socketcall(int nargs, unsigned long *args);
extern int __audit_sockaddr(int len, void *addr);
extern void __audit_fd_pair(int fd1, int fd2);
extern void __audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr);
extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout);
extern void __audit_mq_notify(mqd_t mqdes, const struct sigevent *notification);
extern void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat);
extern int __audit_log_bprm_fcaps(struct linux_binprm *bprm,
				  const struct cred *new,
				  const struct cred *old);
extern void __audit_log_capset(pid_t pid, const struct cred *new, const struct cred *old);
extern void __audit_mmap_fd(int fd, int flags);

static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp)
{
	if (unlikely(!audit_dummy_context()))
		__audit_ipc_obj(ipcp);
}
static inline void audit_fd_pair(int fd1, int fd2)
{
	if (unlikely(!audit_dummy_context()))
		__audit_fd_pair(fd1, fd2);
}
static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode)
{
	if (unlikely(!audit_dummy_context()))
		__audit_ipc_set_perm(qbytes, uid, gid, mode);
}
static inline int audit_bprm(struct linux_binprm *bprm)
{
	if (unlikely(!audit_dummy_context()))
		return __audit_bprm(bprm);
	return 0;
}
static inline int audit_socketcall(int nargs, unsigned long *args)
{
	if (unlikely(!audit_dummy_context()))
		return __audit_socketcall(nargs, args);
	return 0;
}
static inline int audit_sockaddr(int len, void *addr)
{
	if (unlikely(!audit_dummy_context()))
		return __audit_sockaddr(len, addr);
	return 0;
}
static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
{
	if (unlikely(!audit_dummy_context()))
		__audit_mq_open(oflag, mode, attr);
}
static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout)
{
	if (unlikely(!audit_dummy_context()))
		__audit_mq_sendrecv(mqdes, msg_len, msg_prio, abs_timeout);
}
static inline void audit_mq_notify(mqd_t mqdes, const struct sigevent *notification)
{
	if (unlikely(!audit_dummy_context()))
		__audit_mq_notify(mqdes, notification);
}
static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
{
	if (unlikely(!audit_dummy_context()))
		__audit_mq_getsetattr(mqdes, mqstat);
}

static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm,
				       const struct cred *new,
				       const struct cred *old)
{
	if (unlikely(!audit_dummy_context()))
		return __audit_log_bprm_fcaps(bprm, new, old);
	return 0;
}

static inline void audit_log_capset(pid_t pid, const struct cred *new,
				   const struct cred *old)
{
	if (unlikely(!audit_dummy_context()))
		__audit_log_capset(pid, new, old);
}

static inline void audit_mmap_fd(int fd, int flags)
{
	if (unlikely(!audit_dummy_context()))
		__audit_mmap_fd(fd, flags);
}

extern int audit_n_rules;
extern int audit_signals;
#else /* CONFIG_AUDITSYSCALL */
static inline int audit_alloc(struct task_struct *task)
{
	return 0;
}
static inline void audit_free(struct task_struct *task)
{ }
static inline void audit_syscall_entry(int arch, int major, unsigned long a0,
				       unsigned long a1, unsigned long a2,
				       unsigned long a3)
{ }
static inline void audit_syscall_exit(void *pt_regs)
{ }
static inline int audit_dummy_context(void)
{
	return 1;
}
static inline struct filename *audit_reusename(const __user char *name)
{
	return NULL;
}
static inline void audit_getname(struct filename *name)
{ }
static inline void audit_putname(struct filename *name)
{ }
static inline void __audit_inode(struct filename *name,
					const struct dentry *dentry,
					unsigned int flags)
{ }
static inline void __audit_inode_child(const struct inode *parent,
					const struct dentry *dentry,
					const unsigned char type)
{ }
static inline void audit_inode(struct filename *name,
				const struct dentry *dentry,
				unsigned int parent)
{ }
static inline void audit_inode_parent_hidden(struct filename *name,
				const struct dentry *dentry)
{ }
static inline void audit_inode_child(const struct inode *parent,
				     const struct dentry *dentry,
				     const unsigned char type)
{ }
static inline void audit_core_dumps(long signr)
{ }
static inline void __audit_seccomp(unsigned long syscall, long signr, int code)
{ }
static inline void audit_seccomp(unsigned long syscall, long signr, int code)
{ }
static inline int auditsc_get_stamp(struct audit_context *ctx,
			      struct timespec *t, unsigned int *serial)
{
	return 0;
}
static inline kuid_t audit_get_loginuid(struct task_struct *tsk)
{
	return INVALID_UID;
}
static inline int audit_get_sessionid(struct task_struct *tsk)
{
	return -1;
}
static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp)
{ }
static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid,
					gid_t gid, umode_t mode)
{ }
static inline int audit_bprm(struct linux_binprm *bprm)
{
	return 0;
}
static inline int audit_socketcall(int nargs, unsigned long *args)
{
	return 0;
}
static inline void audit_fd_pair(int fd1, int fd2)
{ }
static inline int audit_sockaddr(int len, void *addr)
{
	return 0;
}
static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
{ }
static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len,
				     unsigned int msg_prio,
				     const struct timespec *abs_timeout)
{ }
static inline void audit_mq_notify(mqd_t mqdes,
				   const struct sigevent *notification)
{ }
static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
{ }
static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm,
				       const struct cred *new,
				       const struct cred *old)
{
	return 0;
}
static inline void audit_log_capset(pid_t pid, const struct cred *new,
				   const struct cred *old)
{ }
static inline void audit_mmap_fd(int fd, int flags)
{ }
static inline void audit_ptrace(struct task_struct *t)
{ }
#define audit_n_rules 0
#define audit_signals 0
#endif /* CONFIG_AUDITSYSCALL */

static inline bool audit_loginuid_set(struct task_struct *tsk)
{
	return uid_valid(audit_get_loginuid(tsk));
}

#ifdef CONFIG_AUDIT
/* These are defined in audit.c */
				/* Public API */
extern __printf(4, 5)
void audit_log(struct audit_context *ctx, gfp_t gfp_mask, int type,
	       const char *fmt, ...);

extern struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, int type);
extern __printf(2, 3)
void audit_log_format(struct audit_buffer *ab, const char *fmt, ...);
extern void		    audit_log_end(struct audit_buffer *ab);
extern int		    audit_string_contains_control(const char *string,
							  size_t len);
extern void		    audit_log_n_hex(struct audit_buffer *ab,
					  const unsigned char *buf,
					  size_t len);
extern void		    audit_log_n_string(struct audit_buffer *ab,
					       const char *buf,
					       size_t n);
extern void		    audit_log_n_untrustedstring(struct audit_buffer *ab,
							const char *string,
							size_t n);
extern void		    audit_log_untrustedstring(struct audit_buffer *ab,
						      const char *string);
extern void		    audit_log_d_path(struct audit_buffer *ab,
					     const char *prefix,
					     const struct path *path);
extern void		    audit_log_key(struct audit_buffer *ab,
					  char *key);
extern void		    audit_log_link_denied(const char *operation,
						  struct path *link);
extern void		    audit_log_lost(const char *message);
#ifdef CONFIG_SECURITY
extern void 		    audit_log_secctx(struct audit_buffer *ab, u32 secid);
#else
static inline void	    audit_log_secctx(struct audit_buffer *ab, u32 secid)
{ }
#endif

extern int audit_log_task_context(struct audit_buffer *ab);
extern void audit_log_task_info(struct audit_buffer *ab,
				struct task_struct *tsk);

extern int		    audit_update_lsm_rules(void);

				/* Private API (for audit.c only) */
extern int audit_filter_user(int type);
extern int audit_filter_type(int type);
extern int  audit_receive_filter(int type, int pid, int seq,
				void *data, size_t datasz);
extern int audit_enabled;
#else /* CONFIG_AUDIT */
static inline __printf(4, 5)
void audit_log(struct audit_context *ctx, gfp_t gfp_mask, int type,
	       const char *fmt, ...)
{ }
static inline struct audit_buffer *audit_log_start(struct audit_context *ctx,
						   gfp_t gfp_mask, int type)
{
	return NULL;
}
static inline __printf(2, 3)
void audit_log_format(struct audit_buffer *ab, const char *fmt, ...)
{ }
static inline void audit_log_end(struct audit_buffer *ab)
{ }
static inline void audit_log_n_hex(struct audit_buffer *ab,
				   const unsigned char *buf, size_t len)
{ }
static inline void audit_log_n_string(struct audit_buffer *ab,
				      const char *buf, size_t n)
{ }
static inline void  audit_log_n_untrustedstring(struct audit_buffer *ab,
						const char *string, size_t n)
{ }
static inline void audit_log_untrustedstring(struct audit_buffer *ab,
					     const char *string)
{ }
static inline void audit_log_d_path(struct audit_buffer *ab,
				    const char *prefix,
				    const struct path *path)
{ }
static inline void audit_log_key(struct audit_buffer *ab, char *key)
{ }
static inline void audit_log_link_denied(const char *string,
					 const struct path *link)
{ }
static inline void audit_log_secctx(struct audit_buffer *ab, u32 secid)
{ }
static inline int audit_log_task_context(struct audit_buffer *ab)
{
	return 0;
}
static inline void audit_log_task_info(struct audit_buffer *ab,
				       struct task_struct *tsk)
{ }
#define audit_enabled 0
#endif /* CONFIG_AUDIT */
static inline void audit_log_string(struct audit_buffer *ab, const char *buf)
{
	audit_log_n_string(ab, buf, strlen(buf));
}

#endif
Commit	Line	Data
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	*/
1da177e4 LT	23	#ifndef _LINUX_AUDIT_H_
	24	#define _LINUX_AUDIT_H_
	25
f001e47f	26	#include <linux/sched.h>
c0a3a20b	27	#include <linux/ptrace.h>
607ca46e	28	#include <uapi/linux/audit.h>
1da177e4	29
c2f0c7c3 SG	30	struct audit_sig_info {
	31	uid_t uid;
	32	pid_t pid;
e1396065	33	char ctx[0];
c2f0c7c3 SG	34	};
c2f0c7c3 SG	35
1da177e4 LT	36	struct audit_buffer;
	37	struct audit_context;
	38	struct inode;
5bb289b5	39	struct netlink_skb_parms;
37721e1b	40	struct path;
473ae30b	41	struct linux_binprm;
20ca73bc GW	42	struct mq_attr;
20ca73bc GW	43	struct mqstat;
9d57a7f9 AD	44	struct audit_watch;
	45	struct audit_tree;
	46
	47	struct audit_krule {
	48	int vers_ops;
	49	u32 flags;
	50	u32 listnr;
	51	u32 action;
	52	u32 mask[AUDIT_BITMASK_SIZE];
	53	u32 buflen; /* for data alloc on list rules */
	54	u32 field_count;
	55	char filterkey; / ties events to rules */
	56	struct audit_field *fields;
	57	struct audit_field arch_f; / quick access to arch field */
	58	struct audit_field inode_f; / quick access to an inode field */
	59	struct audit_watch watch; / associated watch */
	60	struct audit_tree tree; / associated watched tree */
	61	struct list_head rlist; /* entry in audit_{watch,tree}.rules list */
e45aa212	62	struct list_head list; /* for AUDIT_LIST* purposes only */
0590b933	63	u64 prio;
9d57a7f9 AD	64	};
	65
	66	struct audit_field {
	67	u32 type;
	68	u32 val;
ca57ec0f EB	69	kuid_t uid;
ca57ec0f EB	70	kgid_t gid;
9d57a7f9	71	u32 op;
04305e4a AD	72	char *lsm_str;
04305e4a AD	73	void *lsm_rule;
9d57a7f9	74	};
1da177e4	75
b0fed402 EP	76	extern int is_audit_feature_set(int which);
b0fed402 EP	77
b915543b	78	extern int __init audit_register_class(int class, unsigned *list);
55669bfa	79	extern int audit_classify_syscall(int abi, unsigned syscall);
e54dc243	80	extern int audit_classify_arch(int arch);
78e2e802 JL	81
	82	/* audit_names->type values */
	83	#define AUDIT_TYPE_UNKNOWN 0 /* we don't know yet */
	84	#define AUDIT_TYPE_NORMAL 1 /* a "normal" audit record */
bfcec708	85	#define AUDIT_TYPE_PARENT 2 /* a parent audit record */
4fa6b5ec JL	86	#define AUDIT_TYPE_CHILD_DELETE 3 /* a child being deleted */
4fa6b5ec JL	87	#define AUDIT_TYPE_CHILD_CREATE 4 /* a child being created */
78e2e802	88
2950fa9d CG	89	/* maximized args number that audit_socketcall can process */
	90	#define AUDITSC_ARGS 6
	91
91a27b2a JL	92	struct filename;
91a27b2a JL	93
4d3fb709 EP	94	extern void audit_log_session_info(struct audit_buffer *ab);
4d3fb709 EP	95
1da177e4 LT	96	#ifdef CONFIG_AUDITSYSCALL
	97	/* These are defined in auditsc.c */
	98	/* Public API */
	99	extern int audit_alloc(struct task_struct *task);
a4ff8dba	100	extern void __audit_free(struct task_struct *task);
b05d8447 EP	101	extern void __audit_syscall_entry(int arch,
	102	int major, unsigned long a0, unsigned long a1,
	103	unsigned long a2, unsigned long a3);
d7e7528b	104	extern void __audit_syscall_exit(int ret_success, long ret_value);
7ac86265	105	extern struct filename __audit_reusename(const __user char uptr);
91a27b2a JL	106	extern void __audit_getname(struct filename *name);
91a27b2a JL	107	extern void audit_putname(struct filename *name);
79f6530c JL	108
	109	#define AUDIT_INODE_PARENT 1 /* dentry represents the parent */
	110	#define AUDIT_INODE_HIDDEN 2 /* audit record should be hidden */
adb5c247	111	extern void __audit_inode(struct filename name, const struct dentry dentry,
79f6530c	112	unsigned int flags);
c43a25ab	113	extern void __audit_inode_child(const struct inode *parent,
4fa6b5ec JL	114	const struct dentry *dentry,
4fa6b5ec JL	115	const unsigned char type);
3dc1c1b2	116	extern void __audit_seccomp(unsigned long syscall, long signr, int code);
a5cb013d AV	117	extern void __audit_ptrace(struct task_struct *t);
a5cb013d AV	118
d51374ad AV	119	static inline int audit_dummy_context(void)
	120	{
	121	void *p = current->audit_context;
	122	return !p \|\| (int )p;
	123	}
a4ff8dba EP	124	static inline void audit_free(struct task_struct *task)
	125	{
	126	if (unlikely(task->audit_context))
	127	__audit_free(task);
	128	}
b05d8447 EP	129	static inline void audit_syscall_entry(int arch, int major, unsigned long a0,
	130	unsigned long a1, unsigned long a2,
	131	unsigned long a3)
	132	{
cdee3904	133	if (unlikely(current->audit_context))
b05d8447 EP	134	__audit_syscall_entry(arch, major, a0, a1, a2, a3);
b05d8447 EP	135	}
d7e7528b EP	136	static inline void audit_syscall_exit(void *pt_regs)
	137	{
	138	if (unlikely(current->audit_context)) {
	139	int success = is_syscall_success(pt_regs);
	140	int return_code = regs_return_value(pt_regs);
	141
	142	__audit_syscall_exit(success, return_code);
	143	}
	144	}
7ac86265 JL	145	static inline struct filename audit_reusename(const __user char name)
	146	{
	147	if (unlikely(!audit_dummy_context()))
	148	return __audit_reusename(name);
	149	return NULL;
	150	}
91a27b2a	151	static inline void audit_getname(struct filename *name)
d8945bb5	152	{
5ac3a9c2	153	if (unlikely(!audit_dummy_context()))
d8945bb5 AV	154	__audit_getname(name);
d8945bb5 AV	155	}
79f6530c JL	156	static inline void audit_inode(struct filename *name,
79f6530c JL	157	const struct dentry *dentry,
bfcec708	158	unsigned int parent) {
79f6530c JL	159	if (unlikely(!audit_dummy_context())) {
	160	unsigned int flags = 0;
	161	if (parent)
	162	flags \|= AUDIT_INODE_PARENT;
	163	__audit_inode(name, dentry, flags);
	164	}
	165	}
	166	static inline void audit_inode_parent_hidden(struct filename *name,
	167	const struct dentry *dentry)
	168	{
5ac3a9c2	169	if (unlikely(!audit_dummy_context()))
79f6530c JL	170	__audit_inode(name, dentry,
79f6530c JL	171	AUDIT_INODE_PARENT \| AUDIT_INODE_HIDDEN);
73241ccc	172	}
c43a25ab	173	static inline void audit_inode_child(const struct inode *parent,
4fa6b5ec JL	174	const struct dentry *dentry,
4fa6b5ec JL	175	const unsigned char type) {
5ac3a9c2	176	if (unlikely(!audit_dummy_context()))
4fa6b5ec	177	__audit_inode_child(parent, dentry, type);
73241ccc	178	}
0a4ff8c2	179	void audit_core_dumps(long signr);
1da177e4	180
3dc1c1b2	181	static inline void audit_seccomp(unsigned long syscall, long signr, int code)
85e7bac3	182	{
7b9205bd KC	183	/* Force a record to be reported if a signal was delivered. */
7b9205bd KC	184	if (signr \|\| unlikely(!audit_dummy_context()))
3dc1c1b2	185	__audit_seccomp(syscall, signr, code);
85e7bac3 EP	186	}
85e7bac3 EP	187
a5cb013d AV	188	static inline void audit_ptrace(struct task_struct *t)
	189	{
	190	if (unlikely(!audit_dummy_context()))
	191	__audit_ptrace(t);
	192	}
	193
1da177e4	194	/* Private API (for audit.c only) */
bfb4496e	195	extern unsigned int audit_serial(void);
48887e63	196	extern int auditsc_get_stamp(struct audit_context *ctx,
bfb4496e	197	struct timespec t, unsigned int serial);
9321d526 KC	198	extern int audit_set_loginuid(kuid_t loginuid);
	199
	200	static inline kuid_t audit_get_loginuid(struct task_struct *tsk)
	201	{
	202	return tsk->loginuid;
	203	}
	204
	205	static inline int audit_get_sessionid(struct task_struct *tsk)
	206	{
	207	return tsk->sessionid;
	208	}
	209
a33e6751	210	extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp);
2570ebbd	211	extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode);
07c49417	212	extern int __audit_bprm(struct linux_binprm *bprm);
2950fa9d	213	extern int __audit_socketcall(int nargs, unsigned long *args);
07c49417	214	extern int __audit_sockaddr(int len, void *addr);
157cf649	215	extern void __audit_fd_pair(int fd1, int fd2);
df0a4283	216	extern void __audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr);
c32c8af4	217	extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout);
20114f71	218	extern void __audit_mq_notify(mqd_t mqdes, const struct sigevent *notification);
7392906e	219	extern void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat);
d84f4f99 DH	220	extern int __audit_log_bprm_fcaps(struct linux_binprm *bprm,
	221	const struct cred *new,
	222	const struct cred *old);
57f71a0a	223	extern void __audit_log_capset(pid_t pid, const struct cred new, const struct cred old);
120a795d	224	extern void __audit_mmap_fd(int fd, int flags);
d8945bb5	225
a33e6751	226	static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp)
d8945bb5	227	{
5ac3a9c2	228	if (unlikely(!audit_dummy_context()))
a33e6751	229	__audit_ipc_obj(ipcp);
db349509	230	}
157cf649	231	static inline void audit_fd_pair(int fd1, int fd2)
d8945bb5	232	{
5ac3a9c2	233	if (unlikely(!audit_dummy_context()))
157cf649	234	__audit_fd_pair(fd1, fd2);
d8945bb5	235	}
2570ebbd	236	static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode)
20ca73bc	237	{
5ac3a9c2	238	if (unlikely(!audit_dummy_context()))
e816f370	239	__audit_ipc_set_perm(qbytes, uid, gid, mode);
20ca73bc	240	}
07c49417 EP	241	static inline int audit_bprm(struct linux_binprm *bprm)
	242	{
	243	if (unlikely(!audit_dummy_context()))
	244	return __audit_bprm(bprm);
	245	return 0;
	246	}
2950fa9d	247	static inline int audit_socketcall(int nargs, unsigned long *args)
07c49417 EP	248	{
07c49417 EP	249	if (unlikely(!audit_dummy_context()))
2950fa9d CG	250	return __audit_socketcall(nargs, args);
2950fa9d CG	251	return 0;
07c49417 EP	252	}
	253	static inline int audit_sockaddr(int len, void *addr)
	254	{
	255	if (unlikely(!audit_dummy_context()))
	256	return __audit_sockaddr(len, addr);
	257	return 0;
	258	}
df0a4283	259	static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
20ca73bc	260	{
5ac3a9c2	261	if (unlikely(!audit_dummy_context()))
564f6993	262	__audit_mq_open(oflag, mode, attr);
20ca73bc	263	}
c32c8af4	264	static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout)
20ca73bc	265	{
5ac3a9c2	266	if (unlikely(!audit_dummy_context()))
c32c8af4	267	__audit_mq_sendrecv(mqdes, msg_len, msg_prio, abs_timeout);
20ca73bc	268	}
20114f71	269	static inline void audit_mq_notify(mqd_t mqdes, const struct sigevent *notification)
20ca73bc	270	{
5ac3a9c2	271	if (unlikely(!audit_dummy_context()))
20114f71	272	__audit_mq_notify(mqdes, notification);
20ca73bc	273	}
7392906e	274	static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
20ca73bc	275	{
5ac3a9c2	276	if (unlikely(!audit_dummy_context()))
7392906e	277	__audit_mq_getsetattr(mqdes, mqstat);
20ca73bc	278	}
3fc689e9	279
d84f4f99 DH	280	static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm,
	281	const struct cred *new,
	282	const struct cred *old)
3fc689e9 EP	283	{
3fc689e9 EP	284	if (unlikely(!audit_dummy_context()))
d84f4f99 DH	285	return __audit_log_bprm_fcaps(bprm, new, old);
d84f4f99 DH	286	return 0;
3fc689e9 EP	287	}
3fc689e9 EP	288
57f71a0a	289	static inline void audit_log_capset(pid_t pid, const struct cred *new,
d84f4f99	290	const struct cred *old)
e68b75a0 EP	291	{
e68b75a0 EP	292	if (unlikely(!audit_dummy_context()))
57f71a0a	293	__audit_log_capset(pid, new, old);
e68b75a0 EP	294	}
e68b75a0 EP	295
120a795d AV	296	static inline void audit_mmap_fd(int fd, int flags)
	297	{
	298	if (unlikely(!audit_dummy_context()))
	299	__audit_mmap_fd(fd, flags);
	300	}
	301
471a5c7c	302	extern int audit_n_rules;
e54dc243	303	extern int audit_signals;
d7e7528b	304	#else /* CONFIG_AUDITSYSCALL */
9321d526 KC	305	static inline int audit_alloc(struct task_struct *task)
	306	{
	307	return 0;
	308	}
	309	static inline void audit_free(struct task_struct *task)
	310	{ }
	311	static inline void audit_syscall_entry(int arch, int major, unsigned long a0,
	312	unsigned long a1, unsigned long a2,
	313	unsigned long a3)
	314	{ }
	315	static inline void audit_syscall_exit(void *pt_regs)
	316	{ }
	317	static inline int audit_dummy_context(void)
	318	{
	319	return 1;
	320	}
7ac86265 JL	321	static inline struct filename audit_reusename(const __user char name)
	322	{
	323	return NULL;
	324	}
91a27b2a	325	static inline void audit_getname(struct filename *name)
9321d526	326	{ }
91a27b2a	327	static inline void audit_putname(struct filename *name)
9321d526	328	{ }
adb5c247 JL	329	static inline void __audit_inode(struct filename *name,
adb5c247 JL	330	const struct dentry *dentry,
79f6530c	331	unsigned int flags)
9321d526	332	{ }
c43a25ab	333	static inline void __audit_inode_child(const struct inode *parent,
4fa6b5ec JL	334	const struct dentry *dentry,
4fa6b5ec JL	335	const unsigned char type)
9321d526	336	{ }
adb5c247 JL	337	static inline void audit_inode(struct filename *name,
adb5c247 JL	338	const struct dentry *dentry,
bfcec708	339	unsigned int parent)
9321d526	340	{ }
79f6530c JL	341	static inline void audit_inode_parent_hidden(struct filename *name,
	342	const struct dentry *dentry)
	343	{ }
c43a25ab	344	static inline void audit_inode_child(const struct inode *parent,
4fa6b5ec JL	345	const struct dentry *dentry,
4fa6b5ec JL	346	const unsigned char type)
9321d526 KC	347	{ }
	348	static inline void audit_core_dumps(long signr)
	349	{ }
	350	static inline void __audit_seccomp(unsigned long syscall, long signr, int code)
	351	{ }
	352	static inline void audit_seccomp(unsigned long syscall, long signr, int code)
	353	{ }
	354	static inline int auditsc_get_stamp(struct audit_context *ctx,
	355	struct timespec t, unsigned int serial)
	356	{
	357	return 0;
	358	}
	359	static inline kuid_t audit_get_loginuid(struct task_struct *tsk)
	360	{
	361	return INVALID_UID;
	362	}
	363	static inline int audit_get_sessionid(struct task_struct *tsk)
	364	{
	365	return -1;
	366	}
9321d526 KC	367	static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp)
	368	{ }
	369	static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid,
	370	gid_t gid, umode_t mode)
	371	{ }
	372	static inline int audit_bprm(struct linux_binprm *bprm)
	373	{
	374	return 0;
	375	}
2950fa9d CG	376	static inline int audit_socketcall(int nargs, unsigned long *args)
	377	{
	378	return 0;
	379	}
9321d526 KC	380	static inline void audit_fd_pair(int fd1, int fd2)
	381	{ }
	382	static inline int audit_sockaddr(int len, void *addr)
	383	{
	384	return 0;
	385	}
	386	static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
	387	{ }
	388	static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len,
	389	unsigned int msg_prio,
	390	const struct timespec *abs_timeout)
	391	{ }
	392	static inline void audit_mq_notify(mqd_t mqdes,
	393	const struct sigevent *notification)
	394	{ }
	395	static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
	396	{ }
	397	static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm,
	398	const struct cred *new,
	399	const struct cred *old)
	400	{
	401	return 0;
	402	}
	403	static inline void audit_log_capset(pid_t pid, const struct cred *new,
	404	const struct cred *old)
	405	{ }
	406	static inline void audit_mmap_fd(int fd, int flags)
	407	{ }
	408	static inline void audit_ptrace(struct task_struct *t)
	409	{ }
471a5c7c	410	#define audit_n_rules 0
e54dc243	411	#define audit_signals 0
d7e7528b	412	#endif /* CONFIG_AUDITSYSCALL */
1da177e4	413
780a7654 EB	414	static inline bool audit_loginuid_set(struct task_struct *tsk)
	415	{
	416	return uid_valid(audit_get_loginuid(tsk));
	417	}
	418
1da177e4 LT	419	#ifdef CONFIG_AUDIT
	420	/* These are defined in audit.c */
	421	/* Public API */
b9075fa9 JP	422	extern __printf(4, 5)
	423	void audit_log(struct audit_context *ctx, gfp_t gfp_mask, int type,
	424	const char *fmt, ...);
1da177e4	425
9796fdd8	426	extern struct audit_buffer audit_log_start(struct audit_context ctx, gfp_t gfp_mask, int type);
b9075fa9 JP	427	extern __printf(2, 3)
b9075fa9 JP	428	void audit_log_format(struct audit_buffer ab, const char fmt, ...);
1da177e4	429	extern void audit_log_end(struct audit_buffer *ab);
de6bbd1d EP	430	extern int audit_string_contains_control(const char *string,
de6bbd1d EP	431	size_t len);
b556f8ad EP	432	extern void audit_log_n_hex(struct audit_buffer *ab,
	433	const unsigned char *buf,
	434	size_t len);
	435	extern void audit_log_n_string(struct audit_buffer *ab,
	436	const char *buf,
	437	size_t n);
b556f8ad EP	438	extern void audit_log_n_untrustedstring(struct audit_buffer *ab,
	439	const char *string,
	440	size_t n);
de6bbd1d	441	extern void audit_log_untrustedstring(struct audit_buffer *ab,
83c7d091	442	const char *string);
1da177e4 LT	443	extern void audit_log_d_path(struct audit_buffer *ab,
1da177e4 LT	444	const char *prefix,
66b3fad3	445	const struct path *path);
9d960985 EP	446	extern void audit_log_key(struct audit_buffer *ab,
9d960985 EP	447	char *key);
a51d9eaa KC	448	extern void audit_log_link_denied(const char *operation,
a51d9eaa KC	449	struct path *link);
522ed776	450	extern void audit_log_lost(const char *message);
131ad62d MDF	451	#ifdef CONFIG_SECURITY
	452	extern void audit_log_secctx(struct audit_buffer *ab, u32 secid);
	453	#else
9321d526 KC	454	static inline void audit_log_secctx(struct audit_buffer *ab, u32 secid)
9321d526 KC	455	{ }
131ad62d MDF	456	#endif
131ad62d MDF	457
b24a30a7 EP	458	extern int audit_log_task_context(struct audit_buffer *ab);
	459	extern void audit_log_task_info(struct audit_buffer *ab,
	460	struct task_struct *tsk);
	461
9d57a7f9 AD	462	extern int audit_update_lsm_rules(void);
9d57a7f9 AD	463
fe7752ba	464	/* Private API (for audit.c only) */
62062cf8	465	extern int audit_filter_user(int type);
fe7752ba	466	extern int audit_filter_type(int type);
017143fe	467	extern int audit_receive_filter(int type, int pid, int seq,
dc9eb698	468	void *data, size_t datasz);
522ed776	469	extern int audit_enabled;
9321d526 KC	470	#else /* CONFIG_AUDIT */
	471	static inline __printf(4, 5)
	472	void audit_log(struct audit_context *ctx, gfp_t gfp_mask, int type,
	473	const char *fmt, ...)
	474	{ }
	475	static inline struct audit_buffer audit_log_start(struct audit_context ctx,
	476	gfp_t gfp_mask, int type)
	477	{
	478	return NULL;
	479	}
	480	static inline __printf(2, 3)
	481	void audit_log_format(struct audit_buffer ab, const char fmt, ...)
	482	{ }
	483	static inline void audit_log_end(struct audit_buffer *ab)
	484	{ }
	485	static inline void audit_log_n_hex(struct audit_buffer *ab,
	486	const unsigned char *buf, size_t len)
	487	{ }
	488	static inline void audit_log_n_string(struct audit_buffer *ab,
	489	const char *buf, size_t n)
	490	{ }
	491	static inline void audit_log_n_untrustedstring(struct audit_buffer *ab,
	492	const char *string, size_t n)
	493	{ }
	494	static inline void audit_log_untrustedstring(struct audit_buffer *ab,
	495	const char *string)
	496	{ }
	497	static inline void audit_log_d_path(struct audit_buffer *ab,
	498	const char *prefix,
	499	const struct path *path)
	500	{ }
	501	static inline void audit_log_key(struct audit_buffer ab, char key)
	502	{ }
	503	static inline void audit_log_link_denied(const char *string,
	504	const struct path *link)
	505	{ }
	506	static inline void audit_log_secctx(struct audit_buffer *ab, u32 secid)
	507	{ }
b24a30a7 EP	508	static inline int audit_log_task_context(struct audit_buffer *ab)
	509	{
	510	return 0;
	511	}
	512	static inline void audit_log_task_info(struct audit_buffer *ab,
	513	struct task_struct *tsk)
	514	{ }
522ed776	515	#define audit_enabled 0
9321d526 KC	516	#endif /* CONFIG_AUDIT */
	517	static inline void audit_log_string(struct audit_buffer ab, const char buf)
	518	{
	519	audit_log_n_string(ab, buf, strlen(buf));
	520	}
	521
1da177e4	522	#endif