[linux-2.6-block.git] / kernel / audit.h

/* audit -- definition of audit_context structure and supporting types 
 *
 * Copyright 2003-2004 Red Hat, Inc.
 * Copyright 2005 Hewlett-Packard Development Company, L.P.
 * Copyright 2005 IBM Corporation
 *
 * 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
 */

#include <linux/fs.h>
#include <linux/audit.h>
#include <linux/skbuff.h>
#include <uapi/linux/mqueue.h>
#include <linux/tty.h>

/* AUDIT_NAMES is the number of slots we reserve in the audit_context
 * for saving names from getname().  If we get more names we will allocate
 * a name dynamically and also add those to the list anchored by names_list. */
#define AUDIT_NAMES	5

/* At task start time, the audit_state is set in the audit_context using
   a per-task filter.  At syscall entry, the audit_state is augmented by
   the syscall filter. */
enum audit_state {
	AUDIT_DISABLED,		/* Do not create per-task audit_context.
				 * No syscall-specific audit records can
				 * be generated. */
	AUDIT_BUILD_CONTEXT,	/* Create the per-task audit_context,
				 * and fill it in at syscall
				 * entry time.  This makes a full
				 * syscall record available if some
				 * other part of the kernel decides it
				 * should be recorded. */
	AUDIT_RECORD_CONTEXT	/* Create the per-task audit_context,
				 * always fill it in at syscall entry
				 * time, and always write out the audit
				 * record at syscall exit time.  */
};

/* Rule lists */
struct audit_watch;
struct audit_fsnotify_mark;
struct audit_tree;
struct audit_chunk;

struct audit_entry {
	struct list_head	list;
	struct rcu_head		rcu;
	struct audit_krule	rule;
};

struct audit_cap_data {
	kernel_cap_t		permitted;
	kernel_cap_t		inheritable;
	union {
		unsigned int	fE;		/* effective bit of file cap */
		kernel_cap_t	effective;	/* effective set of process */
	};
	kernel_cap_t		ambient;
	kuid_t			rootid;
};

/* When fs/namei.c:getname() is called, we store the pointer in name and bump
 * the refcnt in the associated filename struct.
 *
 * Further, in fs/namei.c:path_lookup() we store the inode and device.
 */
struct audit_names {
	struct list_head	list;		/* audit_context->names_list */

	struct filename		*name;
	int			name_len;	/* number of chars to log */
	bool			hidden;		/* don't log this record */

	unsigned long		ino;
	dev_t			dev;
	umode_t			mode;
	kuid_t			uid;
	kgid_t			gid;
	dev_t			rdev;
	u32			osid;
	struct audit_cap_data	fcap;
	unsigned int		fcap_ver;
	unsigned char		type;		/* record type */
	/*
	 * This was an allocated audit_names and not from the array of
	 * names allocated in the task audit context.  Thus this name
	 * should be freed on syscall exit.
	 */
	bool			should_free;
};

struct audit_proctitle {
	int	len;	/* length of the cmdline field. */
	char	*value;	/* the cmdline field */
};

/* The per-task audit context. */
struct audit_context {
	int		    dummy;	/* must be the first element */
	int		    in_syscall;	/* 1 if task is in a syscall */
	enum audit_state    state, current_state;
	unsigned int	    serial;     /* serial number for record */
	int		    major;      /* syscall number */
	struct timespec64   ctime;      /* time of syscall entry */
	unsigned long	    argv[4];    /* syscall arguments */
	long		    return_code;/* syscall return code */
	u64		    prio;
	int		    return_valid; /* return code is valid */
	/*
	 * The names_list is the list of all audit_names collected during this
	 * syscall.  The first AUDIT_NAMES entries in the names_list will
	 * actually be from the preallocated_names array for performance
	 * reasons.  Except during allocation they should never be referenced
	 * through the preallocated_names array and should only be found/used
	 * by running the names_list.
	 */
	struct audit_names  preallocated_names[AUDIT_NAMES];
	int		    name_count; /* total records in names_list */
	struct list_head    names_list;	/* struct audit_names->list anchor */
	char		    *filterkey;	/* key for rule that triggered record */
	struct path	    pwd;
	struct audit_aux_data *aux;
	struct audit_aux_data *aux_pids;
	struct sockaddr_storage *sockaddr;
	size_t sockaddr_len;
				/* Save things to print about task_struct */
	pid_t		    pid, ppid;
	kuid_t		    uid, euid, suid, fsuid;
	kgid_t		    gid, egid, sgid, fsgid;
	unsigned long	    personality;
	int		    arch;

	pid_t		    target_pid;
	kuid_t		    target_auid;
	kuid_t		    target_uid;
	unsigned int	    target_sessionid;
	u32		    target_sid;
	char		    target_comm[TASK_COMM_LEN];

	struct audit_tree_refs *trees, *first_trees;
	struct list_head killed_trees;
	int tree_count;

	int type;
	union {
		struct {
			int nargs;
			long args[6];
		} socketcall;
		struct {
			kuid_t			uid;
			kgid_t			gid;
			umode_t			mode;
			u32			osid;
			int			has_perm;
			uid_t			perm_uid;
			gid_t			perm_gid;
			umode_t			perm_mode;
			unsigned long		qbytes;
		} ipc;
		struct {
			mqd_t			mqdes;
			struct mq_attr		mqstat;
		} mq_getsetattr;
		struct {
			mqd_t			mqdes;
			int			sigev_signo;
		} mq_notify;
		struct {
			mqd_t			mqdes;
			size_t			msg_len;
			unsigned int		msg_prio;
			struct timespec64	abs_timeout;
		} mq_sendrecv;
		struct {
			int			oflag;
			umode_t			mode;
			struct mq_attr		attr;
		} mq_open;
		struct {
			pid_t			pid;
			struct audit_cap_data	cap;
		} capset;
		struct {
			int			fd;
			int			flags;
		} mmap;
		struct {
			int			argc;
		} execve;
		struct {
			char			*name;
		} module;
	};
	int fds[2];
	struct audit_proctitle proctitle;
};

extern bool audit_ever_enabled;

extern void audit_log_session_info(struct audit_buffer *ab);

extern int auditd_test_task(struct task_struct *task);

#define AUDIT_INODE_BUCKETS	32
extern struct list_head audit_inode_hash[AUDIT_INODE_BUCKETS];

static inline int audit_hash_ino(u32 ino)
{
	return (ino & (AUDIT_INODE_BUCKETS-1));
}

/* Indicates that audit should log the full pathname. */
#define AUDIT_NAME_FULL -1

extern int audit_match_class(int class, unsigned syscall);
extern int audit_comparator(const u32 left, const u32 op, const u32 right);
extern int audit_uid_comparator(kuid_t left, u32 op, kuid_t right);
extern int audit_gid_comparator(kgid_t left, u32 op, kgid_t right);
extern int parent_len(const char *path);
extern int audit_compare_dname_path(const char *dname, const char *path, int plen);
extern struct sk_buff *audit_make_reply(int seq, int type, int done, int multi,
					const void *payload, int size);
extern void		    audit_panic(const char *message);

struct audit_netlink_list {
	__u32 portid;
	struct net *net;
	struct sk_buff_head q;
};

int audit_send_list(void *_dest);

extern int selinux_audit_rule_update(void);

extern struct mutex audit_filter_mutex;
extern int audit_del_rule(struct audit_entry *entry);
extern void audit_free_rule_rcu(struct rcu_head *head);
extern struct list_head audit_filter_list[];

extern struct audit_entry *audit_dupe_rule(struct audit_krule *old);

extern void audit_log_d_path_exe(struct audit_buffer *ab,
				 struct mm_struct *mm);

extern struct tty_struct *audit_get_tty(void);
extern void audit_put_tty(struct tty_struct *tty);

/* audit watch/mark/tree functions */
#ifdef CONFIG_AUDITSYSCALL
extern unsigned int audit_serial(void);
extern int auditsc_get_stamp(struct audit_context *ctx,
			      struct timespec64 *t, unsigned int *serial);

extern void audit_put_watch(struct audit_watch *watch);
extern void audit_get_watch(struct audit_watch *watch);
extern int audit_to_watch(struct audit_krule *krule, char *path, int len,
			  u32 op);
extern int audit_add_watch(struct audit_krule *krule, struct list_head **list);
extern void audit_remove_watch_rule(struct audit_krule *krule);
extern char *audit_watch_path(struct audit_watch *watch);
extern int audit_watch_compare(struct audit_watch *watch, unsigned long ino,
			       dev_t dev);

extern struct audit_fsnotify_mark *audit_alloc_mark(struct audit_krule *krule,
						    char *pathname, int len);
extern char *audit_mark_path(struct audit_fsnotify_mark *mark);
extern void audit_remove_mark(struct audit_fsnotify_mark *audit_mark);
extern void audit_remove_mark_rule(struct audit_krule *krule);
extern int audit_mark_compare(struct audit_fsnotify_mark *mark,
			      unsigned long ino, dev_t dev);
extern int audit_dupe_exe(struct audit_krule *new, struct audit_krule *old);
extern int audit_exe_compare(struct task_struct *tsk,
			     struct audit_fsnotify_mark *mark);

extern struct audit_chunk *audit_tree_lookup(const struct inode *inode);
extern void audit_put_chunk(struct audit_chunk *chunk);
extern bool audit_tree_match(struct audit_chunk *chunk,
			     struct audit_tree *tree);
extern int audit_make_tree(struct audit_krule *rule, char *pathname, u32 op);
extern int audit_add_tree_rule(struct audit_krule *rule);
extern int audit_remove_tree_rule(struct audit_krule *rule);
extern void audit_trim_trees(void);
extern int audit_tag_tree(char *old, char *new);
extern const char *audit_tree_path(struct audit_tree *tree);
extern void audit_put_tree(struct audit_tree *tree);
extern void audit_kill_trees(struct audit_context *context);

extern int audit_signal_info(int sig, struct task_struct *t);
extern void audit_filter_inodes(struct task_struct *tsk,
				struct audit_context *ctx);
extern struct list_head *audit_killed_trees(void);
#else /* CONFIG_AUDITSYSCALL */
#define auditsc_get_stamp(c, t, s) 0
#define audit_put_watch(w) {}
#define audit_get_watch(w) {}
#define audit_to_watch(k, p, l, o) (-EINVAL)
#define audit_add_watch(k, l) (-EINVAL)
#define audit_remove_watch_rule(k) BUG()
#define audit_watch_path(w) ""
#define audit_watch_compare(w, i, d) 0

#define audit_alloc_mark(k, p, l) (ERR_PTR(-EINVAL))
#define audit_mark_path(m) ""
#define audit_remove_mark(m)
#define audit_remove_mark_rule(k)
#define audit_mark_compare(m, i, d) 0
#define audit_exe_compare(t, m) (-EINVAL)
#define audit_dupe_exe(n, o) (-EINVAL)

#define audit_remove_tree_rule(rule) BUG()
#define audit_add_tree_rule(rule) -EINVAL
#define audit_make_tree(rule, str, op) -EINVAL
#define audit_trim_trees() (void)0
#define audit_put_tree(tree) (void)0
#define audit_tag_tree(old, new) -EINVAL
#define audit_tree_path(rule) ""	/* never called */
#define audit_kill_trees(context) BUG()

#define audit_signal_info(s, t) AUDIT_DISABLED
#define audit_filter_inodes(t, c) AUDIT_DISABLED
#endif /* CONFIG_AUDITSYSCALL */

extern char *audit_unpack_string(void **bufp, size_t *remain, size_t len);

extern pid_t audit_sig_pid;
extern kuid_t audit_sig_uid;
extern u32 audit_sig_sid;

extern int audit_filter(int msgtype, unsigned int listtype);

extern void audit_ctl_lock(void);
extern void audit_ctl_unlock(void);
Commit	Line	Data
fe7752ba DW	1	/* audit -- definition of audit_context structure and supporting types
	2	*
	3	* Copyright 2003-2004 Red Hat, Inc.
	4	* Copyright 2005 Hewlett-Packard Development Company, L.P.
	5	* Copyright 2005 IBM Corporation
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; either version 2 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	20	*/
	21
	22	#include <linux/fs.h>
	23	#include <linux/audit.h>
9044e6bc	24	#include <linux/skbuff.h>
b24a30a7	25	#include <uapi/linux/mqueue.h>
3f5be2da	26	#include <linux/tty.h>
fe7752ba	27
b24a30a7 EP	28	/* AUDIT_NAMES is the number of slots we reserve in the audit_context
	29	* for saving names from getname(). If we get more names we will allocate
	30	* a name dynamically and also add those to the list anchored by names_list. */
	31	#define AUDIT_NAMES 5
	32
fe7752ba DW	33	/* At task start time, the audit_state is set in the audit_context using
	34	a per-task filter. At syscall entry, the audit_state is augmented by
	35	the syscall filter. */
	36	enum audit_state {
	37	AUDIT_DISABLED, /* Do not create per-task audit_context.
	38	* No syscall-specific audit records can
	39	* be generated. */
fe7752ba	40	AUDIT_BUILD_CONTEXT, /* Create the per-task audit_context,
997f5b64	41	* and fill it in at syscall
fe7752ba DW	42	* entry time. This makes a full
	43	* syscall record available if some
	44	* other part of the kernel decides it
	45	* should be recorded. */
	46	AUDIT_RECORD_CONTEXT /* Create the per-task audit_context,
	47	* always fill it in at syscall entry
	48	* time, and always write out the audit
	49	* record at syscall exit time. */
	50	};
	51
	52	/* Rule lists */
cfcad62c	53	struct audit_watch;
7f492942	54	struct audit_fsnotify_mark;
74c3cbe3 AV	55	struct audit_tree;
	56	struct audit_chunk;
	57
fe7752ba	58	struct audit_entry {
93315ed6 AG	59	struct list_head list;
	60	struct rcu_head rcu;
	61	struct audit_krule rule;
fe7752ba DW	62	};
fe7752ba DW	63
b24a30a7 EP	64	struct audit_cap_data {
	65	kernel_cap_t permitted;
	66	kernel_cap_t inheritable;
	67	union {
	68	unsigned int fE; /* effective bit of file cap */
	69	kernel_cap_t effective; /* effective set of process */
	70	};
7786f6b6	71	kernel_cap_t ambient;
2fec30e2	72	kuid_t rootid;
b24a30a7 EP	73	};
b24a30a7 EP	74
55422d0b PM	75	/* When fs/namei.c:getname() is called, we store the pointer in name and bump
55422d0b PM	76	* the refcnt in the associated filename struct.
b24a30a7 EP	77	*
	78	* Further, in fs/namei.c:path_lookup() we store the inode and device.
	79	*/
	80	struct audit_names {
	81	struct list_head list; /* audit_context->names_list */
	82
	83	struct filename *name;
	84	int name_len; /* number of chars to log */
79f6530c	85	bool hidden; /* don't log this record */
b24a30a7 EP	86
	87	unsigned long ino;
	88	dev_t dev;
	89	umode_t mode;
	90	kuid_t uid;
	91	kgid_t gid;
	92	dev_t rdev;
	93	u32 osid;
	94	struct audit_cap_data fcap;
	95	unsigned int fcap_ver;
	96	unsigned char type; /* record type */
	97	/*
	98	* This was an allocated audit_names and not from the array of
	99	* names allocated in the task audit context. Thus this name
	100	* should be freed on syscall exit.
	101	*/
	102	bool should_free;
	103	};
	104
3f1c8250 WR	105	struct audit_proctitle {
	106	int len; /* length of the cmdline field. */
	107	char value; / the cmdline field */
	108	};
	109
b24a30a7 EP	110	/* The per-task audit context. */
	111	struct audit_context {
	112	int dummy; /* must be the first element */
	113	int in_syscall; /* 1 if task is in a syscall */
	114	enum audit_state state, current_state;
	115	unsigned int serial; /* serial number for record */
	116	int major; /* syscall number */
2115bb25	117	struct timespec64 ctime; /* time of syscall entry */
b24a30a7 EP	118	unsigned long argv[4]; /* syscall arguments */
	119	long return_code;/* syscall return code */
	120	u64 prio;
	121	int return_valid; /* return code is valid */
	122	/*
	123	* The names_list is the list of all audit_names collected during this
	124	* syscall. The first AUDIT_NAMES entries in the names_list will
	125	* actually be from the preallocated_names array for performance
	126	* reasons. Except during allocation they should never be referenced
	127	* through the preallocated_names array and should only be found/used
	128	* by running the names_list.
	129	*/
	130	struct audit_names preallocated_names[AUDIT_NAMES];
	131	int name_count; /* total records in names_list */
	132	struct list_head names_list; /* struct audit_names->list anchor */
	133	char filterkey; / key for rule that triggered record */
	134	struct path pwd;
	135	struct audit_aux_data *aux;
	136	struct audit_aux_data *aux_pids;
	137	struct sockaddr_storage *sockaddr;
	138	size_t sockaddr_len;
	139	/* Save things to print about task_struct */
	140	pid_t pid, ppid;
	141	kuid_t uid, euid, suid, fsuid;
	142	kgid_t gid, egid, sgid, fsgid;
	143	unsigned long personality;
	144	int arch;
	145
	146	pid_t target_pid;
	147	kuid_t target_auid;
	148	kuid_t target_uid;
	149	unsigned int target_sessionid;
	150	u32 target_sid;
	151	char target_comm[TASK_COMM_LEN];
	152
	153	struct audit_tree_refs trees, first_trees;
	154	struct list_head killed_trees;
	155	int tree_count;
	156
	157	int type;
	158	union {
	159	struct {
	160	int nargs;
	161	long args[6];
	162	} socketcall;
	163	struct {
	164	kuid_t uid;
	165	kgid_t gid;
	166	umode_t mode;
	167	u32 osid;
	168	int has_perm;
	169	uid_t perm_uid;
	170	gid_t perm_gid;
	171	umode_t perm_mode;
	172	unsigned long qbytes;
	173	} ipc;
	174	struct {
	175	mqd_t mqdes;
	176	struct mq_attr mqstat;
	177	} mq_getsetattr;
	178	struct {
	179	mqd_t mqdes;
	180	int sigev_signo;
	181	} mq_notify;
182	struct {
183	mqd_t mqdes;
184	size_t msg_len;
185	unsigned int msg_prio;
b9047726	186	struct timespec64 abs_timeout;
b24a30a7 EP	187	} mq_sendrecv;
	188	struct {
	189	int oflag;
	190	umode_t mode;
	191	struct mq_attr attr;
	192	} mq_open;
	193	struct {
	194	pid_t pid;
	195	struct audit_cap_data cap;
	196	} capset;
	197	struct {
	198	int fd;
	199	int flags;
	200	} mmap;
d9cfea91 RGB	201	struct {
d9cfea91 RGB	202	int argc;
d9cfea91	203	} execve;
ca86cad7 RGB	204	struct {
	205	char *name;
	206	} module;
b24a30a7 EP	207	};
b24a30a7 EP	208	int fds[2];
3f1c8250	209	struct audit_proctitle proctitle;
b24a30a7 EP	210	};
b24a30a7 EP	211
b3b4fdf6	212	extern bool audit_ever_enabled;
c782f242	213
0fe3c7fc RGB	214	extern void audit_log_session_info(struct audit_buffer *ab);
0fe3c7fc RGB	215
b6c7c115	216	extern int auditd_test_task(struct task_struct *task);
fe7752ba	217
f368c07d AG	218	#define AUDIT_INODE_BUCKETS 32
	219	extern struct list_head audit_inode_hash[AUDIT_INODE_BUCKETS];
	220
	221	static inline int audit_hash_ino(u32 ino)
	222	{
	223	return (ino & (AUDIT_INODE_BUCKETS-1));
	224	}
	225
e3d6b07b JL	226	/* Indicates that audit should log the full pathname. */
	227	#define AUDIT_NAME_FULL -1
	228
55669bfa	229	extern int audit_match_class(int class, unsigned syscall);
f368c07d	230	extern int audit_comparator(const u32 left, const u32 op, const u32 right);
ca57ec0f EB	231	extern int audit_uid_comparator(kuid_t left, u32 op, kuid_t right);
ca57ec0f EB	232	extern int audit_gid_comparator(kgid_t left, u32 op, kgid_t right);
bfcec708	233	extern int parent_len(const char *path);
e3d6b07b	234	extern int audit_compare_dname_path(const char dname, const char path, int plen);
45a0642b	235	extern struct sk_buff *audit_make_reply(int seq, int type, int done, int multi,
f9441639	236	const void *payload, int size);
fe7752ba	237	extern void audit_panic(const char *message);
3dc7e315	238
9044e6bc	239	struct audit_netlink_list {
f9441639	240	__u32 portid;
638a0fd2	241	struct net *net;
9044e6bc AV	242	struct sk_buff_head q;
	243	};
	244
e4c1a0d1	245	int audit_send_list(void *_dest);
9044e6bc	246
3dc7e315	247	extern int selinux_audit_rule_update(void);
e1396065	248
74c3cbe3	249	extern struct mutex audit_filter_mutex;
e4c1a0d1 DR	250	extern int audit_del_rule(struct audit_entry *entry);
e4c1a0d1 DR	251	extern void audit_free_rule_rcu(struct rcu_head *head);
c782f242	252	extern struct list_head audit_filter_list[];
74c3cbe3	253
939a67fc EP	254	extern struct audit_entry audit_dupe_rule(struct audit_krule old);
939a67fc EP	255
4766b199 DB	256	extern void audit_log_d_path_exe(struct audit_buffer *ab,
	257	struct mm_struct *mm);
	258
2a1fe215	259	extern struct tty_struct *audit_get_tty(void);
3f5be2da RGB	260	extern void audit_put_tty(struct tty_struct *tty);
3f5be2da RGB	261
05c7a9cb	262	/* audit watch/mark/tree functions */
c8fc5d49	263	#ifdef CONFIG_AUDITSYSCALL
cd108b5c RGB	264	extern unsigned int audit_serial(void);
	265	extern int auditsc_get_stamp(struct audit_context *ctx,
	266	struct timespec64 t, unsigned int serial);
	267
cfcad62c EP	268	extern void audit_put_watch(struct audit_watch *watch);
cfcad62c EP	269	extern void audit_get_watch(struct audit_watch *watch);
05c7a9cb RGB	270	extern int audit_to_watch(struct audit_krule krule, char path, int len,
05c7a9cb RGB	271	u32 op);
ae7b8f41	272	extern int audit_add_watch(struct audit_krule krule, struct list_head *list);
a05fb6cc	273	extern void audit_remove_watch_rule(struct audit_krule *krule);
cfcad62c	274	extern char audit_watch_path(struct audit_watch watch);
05c7a9cb RGB	275	extern int audit_watch_compare(struct audit_watch *watch, unsigned long ino,
05c7a9cb RGB	276	dev_t dev);
7f492942	277
05c7a9cb RGB	278	extern struct audit_fsnotify_mark audit_alloc_mark(struct audit_krule krule,
05c7a9cb RGB	279	char *pathname, int len);
7f492942 RGB	280	extern char audit_mark_path(struct audit_fsnotify_mark mark);
	281	extern void audit_remove_mark(struct audit_fsnotify_mark *audit_mark);
	282	extern void audit_remove_mark_rule(struct audit_krule *krule);
05c7a9cb RGB	283	extern int audit_mark_compare(struct audit_fsnotify_mark *mark,
05c7a9cb RGB	284	unsigned long ino, dev_t dev);
34d99af5	285	extern int audit_dupe_exe(struct audit_krule new, struct audit_krule old);
05c7a9cb RGB	286	extern int audit_exe_compare(struct task_struct *tsk,
05c7a9cb RGB	287	struct audit_fsnotify_mark *mark);
7f492942	288
05c7a9cb RGB	289	extern struct audit_chunk audit_tree_lookup(const struct inode inode);
	290	extern void audit_put_chunk(struct audit_chunk *chunk);
	291	extern bool audit_tree_match(struct audit_chunk *chunk,
	292	struct audit_tree *tree);
	293	extern int audit_make_tree(struct audit_krule rule, char pathname, u32 op);
	294	extern int audit_add_tree_rule(struct audit_krule *rule);
	295	extern int audit_remove_tree_rule(struct audit_krule *rule);
	296	extern void audit_trim_trees(void);
	297	extern int audit_tag_tree(char old, char new);
	298	extern const char audit_tree_path(struct audit_tree tree);
	299	extern void audit_put_tree(struct audit_tree *tree);
	300	extern void audit_kill_trees(struct audit_context *context);
	301
	302	extern int audit_signal_info(int sig, struct task_struct *t);
	303	extern void audit_filter_inodes(struct task_struct *tsk,
	304	struct audit_context *ctx);
	305	extern struct list_head *audit_killed_trees(void);
	306	#else /* CONFIG_AUDITSYSCALL */
cd108b5c	307	#define auditsc_get_stamp(c, t, s) 0
939a67fc EP	308	#define audit_put_watch(w) {}
	309	#define audit_get_watch(w) {}
	310	#define audit_to_watch(k, p, l, o) (-EINVAL)
	311	#define audit_add_watch(k, l) (-EINVAL)
	312	#define audit_remove_watch_rule(k) BUG()
	313	#define audit_watch_path(w) ""
	314	#define audit_watch_compare(w, i, d) 0
	315
7f492942 RGB	316	#define audit_alloc_mark(k, p, l) (ERR_PTR(-EINVAL))
	317	#define audit_mark_path(m) ""
	318	#define audit_remove_mark(m)
	319	#define audit_remove_mark_rule(k)
	320	#define audit_mark_compare(m, i, d) 0
34d99af5 RGB	321	#define audit_exe_compare(t, m) (-EINVAL)
34d99af5 RGB	322	#define audit_dupe_exe(n, o) (-EINVAL)
cfcad62c	323
74c3cbe3 AV	324	#define audit_remove_tree_rule(rule) BUG()
	325	#define audit_add_tree_rule(rule) -EINVAL
	326	#define audit_make_tree(rule, str, op) -EINVAL
	327	#define audit_trim_trees() (void)0
	328	#define audit_put_tree(tree) (void)0
	329	#define audit_tag_tree(old, new) -EINVAL
	330	#define audit_tree_path(rule) "" /* never called */
9e36a5d4	331	#define audit_kill_trees(context) BUG()
05c7a9cb RGB	332
	333	#define audit_signal_info(s, t) AUDIT_DISABLED
	334	#define audit_filter_inodes(t, c) AUDIT_DISABLED
	335	#endif /* CONFIG_AUDITSYSCALL */
74c3cbe3	336
e4c1a0d1	337	extern char audit_unpack_string(void bufp, size_t remain, size_t len);
74c3cbe3	338
c782f242	339	extern pid_t audit_sig_pid;
cca080d9	340	extern kuid_t audit_sig_uid;
c782f242 HH	341	extern u32 audit_sig_sid;
c782f242 HH	342
86b2efbe RGB	343	extern int audit_filter(int msgtype, unsigned int listtype);
86b2efbe RGB	344
ce423631 PM	345	extern void audit_ctl_lock(void);
ce423631 PM	346	extern void audit_ctl_unlock(void);