[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 int audit_log_task_context(struct audit_buffer *ab);
extern void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk);
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 int void 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)
{ }
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 */

#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_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)
{ }
#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
b122c376	193	extern int audit_log_task_context(struct audit_buffer *ab);
e23eb920	194	extern void audit_log_task_info(struct audit_buffer ab, struct task_struct tsk);
a33e6751	195	extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp);
2570ebbd	196	extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode);
07c49417	197	extern int __audit_bprm(struct linux_binprm *bprm);
2950fa9d	198	extern int __audit_socketcall(int nargs, unsigned long *args);
07c49417	199	extern int __audit_sockaddr(int len, void *addr);
157cf649	200	extern void __audit_fd_pair(int fd1, int fd2);
df0a4283	201	extern void __audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr);
c32c8af4	202	extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout);
20114f71	203	extern void __audit_mq_notify(mqd_t mqdes, const struct sigevent *notification);
7392906e	204	extern void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat);
d84f4f99 DH	205	extern int __audit_log_bprm_fcaps(struct linux_binprm *bprm,
	206	const struct cred *new,
	207	const struct cred *old);
57f71a0a	208	extern void __audit_log_capset(pid_t pid, const struct cred new, const struct cred old);
120a795d	209	extern void __audit_mmap_fd(int fd, int flags);
d8945bb5	210
a33e6751	211	static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp)
d8945bb5	212	{
5ac3a9c2	213	if (unlikely(!audit_dummy_context()))
a33e6751	214	__audit_ipc_obj(ipcp);
db349509	215	}
157cf649	216	static inline void audit_fd_pair(int fd1, int fd2)
d8945bb5	217	{
5ac3a9c2	218	if (unlikely(!audit_dummy_context()))
157cf649	219	__audit_fd_pair(fd1, fd2);
d8945bb5	220	}
2570ebbd	221	static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode)
20ca73bc	222	{
5ac3a9c2	223	if (unlikely(!audit_dummy_context()))
e816f370	224	__audit_ipc_set_perm(qbytes, uid, gid, mode);
20ca73bc	225	}
07c49417 EP	226	static inline int audit_bprm(struct linux_binprm *bprm)
	227	{
	228	if (unlikely(!audit_dummy_context()))
	229	return __audit_bprm(bprm);
	230	return 0;
	231	}
2950fa9d	232	static inline int audit_socketcall(int nargs, unsigned long *args)
07c49417 EP	233	{
07c49417 EP	234	if (unlikely(!audit_dummy_context()))
2950fa9d CG	235	return __audit_socketcall(nargs, args);
2950fa9d CG	236	return 0;
07c49417 EP	237	}
	238	static inline int audit_sockaddr(int len, void *addr)
	239	{
	240	if (unlikely(!audit_dummy_context()))
	241	return __audit_sockaddr(len, addr);
	242	return 0;
	243	}
df0a4283	244	static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
20ca73bc	245	{
5ac3a9c2	246	if (unlikely(!audit_dummy_context()))
564f6993	247	__audit_mq_open(oflag, mode, attr);
20ca73bc	248	}
c32c8af4	249	static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout)
20ca73bc	250	{
5ac3a9c2	251	if (unlikely(!audit_dummy_context()))
c32c8af4	252	__audit_mq_sendrecv(mqdes, msg_len, msg_prio, abs_timeout);
20ca73bc	253	}
20114f71	254	static inline void audit_mq_notify(mqd_t mqdes, const struct sigevent *notification)
20ca73bc	255	{
5ac3a9c2	256	if (unlikely(!audit_dummy_context()))
20114f71	257	__audit_mq_notify(mqdes, notification);
20ca73bc	258	}
7392906e	259	static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
20ca73bc	260	{
5ac3a9c2	261	if (unlikely(!audit_dummy_context()))
7392906e	262	__audit_mq_getsetattr(mqdes, mqstat);
20ca73bc	263	}
3fc689e9	264
d84f4f99 DH	265	static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm,
	266	const struct cred *new,
	267	const struct cred *old)
3fc689e9 EP	268	{
3fc689e9 EP	269	if (unlikely(!audit_dummy_context()))
d84f4f99 DH	270	return __audit_log_bprm_fcaps(bprm, new, old);
d84f4f99 DH	271	return 0;
3fc689e9 EP	272	}
3fc689e9 EP	273
57f71a0a	274	static inline void audit_log_capset(pid_t pid, const struct cred *new,
d84f4f99	275	const struct cred *old)
e68b75a0 EP	276	{
e68b75a0 EP	277	if (unlikely(!audit_dummy_context()))
57f71a0a	278	__audit_log_capset(pid, new, old);
e68b75a0 EP	279	}
e68b75a0 EP	280
120a795d AV	281	static inline void audit_mmap_fd(int fd, int flags)
	282	{
	283	if (unlikely(!audit_dummy_context()))
	284	__audit_mmap_fd(fd, flags);
	285	}
	286
471a5c7c	287	extern int audit_n_rules;
e54dc243	288	extern int audit_signals;
d7e7528b	289	#else /* CONFIG_AUDITSYSCALL */
9321d526 KC	290	static inline int audit_alloc(struct task_struct *task)
	291	{
	292	return 0;
	293	}
	294	static inline void audit_free(struct task_struct *task)
	295	{ }
	296	static inline void audit_syscall_entry(int arch, int major, unsigned long a0,
	297	unsigned long a1, unsigned long a2,
	298	unsigned long a3)
	299	{ }
	300	static inline void audit_syscall_exit(void *pt_regs)
	301	{ }
	302	static inline int audit_dummy_context(void)
	303	{
	304	return 1;
	305	}
7ac86265 JL	306	static inline struct filename audit_reusename(const __user char name)
	307	{
	308	return NULL;
	309	}
91a27b2a	310	static inline void audit_getname(struct filename *name)
9321d526	311	{ }
91a27b2a	312	static inline void audit_putname(struct filename *name)
9321d526	313	{ }
adb5c247 JL	314	static inline void __audit_inode(struct filename *name,
adb5c247 JL	315	const struct dentry *dentry,
bfcec708	316	unsigned int parent)
9321d526	317	{ }
c43a25ab	318	static inline void __audit_inode_child(const struct inode *parent,
4fa6b5ec JL	319	const struct dentry *dentry,
4fa6b5ec JL	320	const unsigned char type)
9321d526	321	{ }
adb5c247 JL	322	static inline void audit_inode(struct filename *name,
adb5c247 JL	323	const struct dentry *dentry,
bfcec708	324	unsigned int parent)
9321d526	325	{ }
c43a25ab	326	static inline void audit_inode_child(const struct inode *parent,
4fa6b5ec JL	327	const struct dentry *dentry,
4fa6b5ec JL	328	const unsigned char type)
9321d526 KC	329	{ }
	330	static inline void audit_core_dumps(long signr)
	331	{ }
	332	static inline void __audit_seccomp(unsigned long syscall, long signr, int code)
	333	{ }
	334	static inline void audit_seccomp(unsigned long syscall, long signr, int code)
	335	{ }
	336	static inline int auditsc_get_stamp(struct audit_context *ctx,
	337	struct timespec t, unsigned int serial)
	338	{
	339	return 0;
	340	}
	341	static inline kuid_t audit_get_loginuid(struct task_struct *tsk)
	342	{
	343	return INVALID_UID;
	344	}
	345	static inline int audit_get_sessionid(struct task_struct *tsk)
	346	{
	347	return -1;
	348	}
b122c376 EP	349	static int void audit_log_task_context(struct audit_buffer *ab)
	350	{
	351	return 0;
	352	}
9321d526 KC	353	static inline void audit_log_task_info(struct audit_buffer *ab,
	354	struct task_struct *tsk)
	355	{ }
	356	static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp)
	357	{ }
	358	static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid,
	359	gid_t gid, umode_t mode)
	360	{ }
	361	static inline int audit_bprm(struct linux_binprm *bprm)
	362	{
	363	return 0;
	364	}
2950fa9d CG	365	static inline int audit_socketcall(int nargs, unsigned long *args)
	366	{
	367	return 0;
	368	}
9321d526 KC	369	static inline void audit_fd_pair(int fd1, int fd2)
	370	{ }
	371	static inline int audit_sockaddr(int len, void *addr)
	372	{
	373	return 0;
	374	}
	375	static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
	376	{ }
	377	static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len,
	378	unsigned int msg_prio,
	379	const struct timespec *abs_timeout)
	380	{ }
	381	static inline void audit_mq_notify(mqd_t mqdes,
	382	const struct sigevent *notification)
	383	{ }
	384	static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
	385	{ }
	386	static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm,
	387	const struct cred *new,
	388	const struct cred *old)
	389	{
	390	return 0;
	391	}
	392	static inline void audit_log_capset(pid_t pid, const struct cred *new,
	393	const struct cred *old)
	394	{ }
	395	static inline void audit_mmap_fd(int fd, int flags)
	396	{ }
	397	static inline void audit_ptrace(struct task_struct *t)
	398	{ }
471a5c7c	399	#define audit_n_rules 0
e54dc243	400	#define audit_signals 0
d7e7528b	401	#endif /* CONFIG_AUDITSYSCALL */
1da177e4 LT	402
	403	#ifdef CONFIG_AUDIT
	404	/* These are defined in audit.c */
	405	/* Public API */
b9075fa9 JP	406	extern __printf(4, 5)
	407	void audit_log(struct audit_context *ctx, gfp_t gfp_mask, int type,
	408	const char *fmt, ...);
1da177e4	409
9796fdd8	410	extern struct audit_buffer audit_log_start(struct audit_context ctx, gfp_t gfp_mask, int type);
b9075fa9 JP	411	extern __printf(2, 3)
b9075fa9 JP	412	void audit_log_format(struct audit_buffer ab, const char fmt, ...);
1da177e4	413	extern void audit_log_end(struct audit_buffer *ab);
de6bbd1d EP	414	extern int audit_string_contains_control(const char *string,
de6bbd1d EP	415	size_t len);
b556f8ad EP	416	extern void audit_log_n_hex(struct audit_buffer *ab,
	417	const unsigned char *buf,
	418	size_t len);
	419	extern void audit_log_n_string(struct audit_buffer *ab,
	420	const char *buf,
	421	size_t n);
b556f8ad EP	422	extern void audit_log_n_untrustedstring(struct audit_buffer *ab,
	423	const char *string,
	424	size_t n);
de6bbd1d	425	extern void audit_log_untrustedstring(struct audit_buffer *ab,
83c7d091	426	const char *string);
1da177e4 LT	427	extern void audit_log_d_path(struct audit_buffer *ab,
1da177e4 LT	428	const char *prefix,
66b3fad3	429	const struct path *path);
9d960985 EP	430	extern void audit_log_key(struct audit_buffer *ab,
9d960985 EP	431	char *key);
a51d9eaa KC	432	extern void audit_log_link_denied(const char *operation,
a51d9eaa KC	433	struct path *link);
522ed776	434	extern void audit_log_lost(const char *message);
131ad62d MDF	435	#ifdef CONFIG_SECURITY
	436	extern void audit_log_secctx(struct audit_buffer *ab, u32 secid);
	437	#else
9321d526 KC	438	static inline void audit_log_secctx(struct audit_buffer *ab, u32 secid)
9321d526 KC	439	{ }
131ad62d MDF	440	#endif
131ad62d MDF	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	{ }
522ed776	488	#define audit_enabled 0
9321d526 KC	489	#endif /* CONFIG_AUDIT */
	490	static inline void audit_log_string(struct audit_buffer ab, const char buf)
	491	{
	492	audit_log_n_string(ab, buf, strlen(buf));
	493	}
	494
1da177e4	495	#endif