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