kernel/audit.h - linux - Git at Google

 /* 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 */
 	};
 };

 /* 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 timespec	    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 timespec		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;
 	};
 	int fds[2];
 	struct audit_proctitle proctitle;
 };

 extern u32 audit_ever_enabled;

 extern void audit_copy_inode(struct audit_names *name,
 			     const struct dentry *dentry,
 			     struct inode *inode);
 extern void audit_log_cap(struct audit_buffer *ab, char *prefix,
 			  kernel_cap_t *cap);
 extern void audit_log_name(struct audit_context *context,
 			   struct audit_names *n, struct path *path,
 			   int record_num, int *call_panic);

 extern int audit_pid;

 #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(__u32 portid, 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 *);

 struct audit_net {
 	struct sock *nlsk;
 };

 extern int selinux_audit_rule_update(void);

 extern struct mutex audit_filter_mutex;
 extern int audit_del_rule(struct audit_entry *);
 extern void audit_free_rule_rcu(struct rcu_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(struct task_struct *tsk);
 extern void audit_put_tty(struct tty_struct *tty);

 /* audit watch functions */
 #ifdef CONFIG_AUDIT_WATCH
 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);

 #else
 #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)
 #endif /* CONFIG_AUDIT_WATCH */

 #ifdef CONFIG_AUDIT_TREE
 extern struct audit_chunk *audit_tree_lookup(const struct inode *);
 extern void audit_put_chunk(struct audit_chunk *);
 extern bool audit_tree_match(struct audit_chunk *, struct audit_tree *);
 extern int audit_make_tree(struct audit_krule *, char *, u32);
 extern int audit_add_tree_rule(struct audit_krule *);
 extern int audit_remove_tree_rule(struct audit_krule *);
 extern void audit_trim_trees(void);
 extern int audit_tag_tree(char *old, char *new);
 extern const char *audit_tree_path(struct audit_tree *);
 extern void audit_put_tree(struct audit_tree *);
 extern void audit_kill_trees(struct list_head *);
 #else
 #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(list) BUG()
 #endif

 extern char *audit_unpack_string(void **, size_t *, size_t);

 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);

 #ifdef CONFIG_AUDITSYSCALL
 extern int __audit_signal_info(int sig, struct task_struct *t);
 static inline int audit_signal_info(int sig, struct task_struct *t)
 {
 	if (unlikely((audit_pid && t->tgid == audit_pid) ||
 		     (audit_signals && !audit_dummy_context())))
 		return __audit_signal_info(sig, t);
 	return 0;
 }
 extern void audit_filter_inodes(struct task_struct *, struct audit_context *);
 extern struct list_head *audit_killed_trees(void);
 #else
 #define audit_signal_info(s,t) AUDIT_DISABLED
 #define audit_filter_inodes(t,c) AUDIT_DISABLED
 #endif

 extern struct mutex audit_cmd_mutex;
	/* 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 */
	};
	};

	/* 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 timespec 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 timespec 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;
	};
	int fds[2];
	struct audit_proctitle proctitle;
	};

	extern u32 audit_ever_enabled;

	extern void audit_copy_inode(struct audit_names *name,
	const struct dentry *dentry,
	struct inode *inode);
	extern void audit_log_cap(struct audit_buffer ab, char prefix,
	kernel_cap_t *cap);
	extern void audit_log_name(struct audit_context *context,
	struct audit_names n, struct path path,
	int record_num, int *call_panic);

	extern int audit_pid;

	#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(__u32 portid, 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 *);

	struct audit_net {
	struct sock *nlsk;
	};

	extern int selinux_audit_rule_update(void);

	extern struct mutex audit_filter_mutex;
	extern int audit_del_rule(struct audit_entry *);
	extern void audit_free_rule_rcu(struct rcu_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(struct task_struct tsk);
	extern void audit_put_tty(struct tty_struct *tty);

	/* audit watch functions */
	#ifdef CONFIG_AUDIT_WATCH
	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);

	#else
	#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)
	#endif /* CONFIG_AUDIT_WATCH */

	#ifdef CONFIG_AUDIT_TREE
	extern struct audit_chunk audit_tree_lookup(const struct inode );
	extern void audit_put_chunk(struct audit_chunk *);
	extern bool audit_tree_match(struct audit_chunk , struct audit_tree );
	extern int audit_make_tree(struct audit_krule , char , u32);
	extern int audit_add_tree_rule(struct audit_krule *);
	extern int audit_remove_tree_rule(struct audit_krule *);
	extern void audit_trim_trees(void);
	extern int audit_tag_tree(char old, char new);
	extern const char audit_tree_path(struct audit_tree );
	extern void audit_put_tree(struct audit_tree *);
	extern void audit_kill_trees(struct list_head *);
	#else
	#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(list) BUG()
	#endif

	extern char audit_unpack_string(void , size_t , size_t);

	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);

	#ifdef CONFIG_AUDITSYSCALL
	extern int __audit_signal_info(int sig, struct task_struct *t);
	static inline int audit_signal_info(int sig, struct task_struct *t)
	{
	if (unlikely((audit_pid && t->tgid == audit_pid) \|\|
	(audit_signals && !audit_dummy_context())))
	return __audit_signal_info(sig, t);
	return 0;
	}
	extern void audit_filter_inodes(struct task_struct , struct audit_context );
	extern struct list_head *audit_killed_trees(void);
	#else
	#define audit_signal_info(s,t) AUDIT_DISABLED
	#define audit_filter_inodes(t,c) AUDIT_DISABLED
	#endif

	extern struct mutex audit_cmd_mutex;