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32 results

printk.c

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  • audit.h 25.05 KiB
    /* 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/types.h>
    #include <linux/elf-em.h>
    #include <linux/ptrace.h>
    
    /* The netlink messages for the audit system is divided into blocks:
     * 1000 - 1099 are for commanding the audit system
     * 1100 - 1199 user space trusted application messages
     * 1200 - 1299 messages internal to the audit daemon
     * 1300 - 1399 audit event messages
     * 1400 - 1499 SE Linux use
     * 1500 - 1599 kernel LSPP events
     * 1600 - 1699 kernel crypto events
     * 1700 - 1799 kernel anomaly records
     * 1800 - 1899 kernel integrity events
     * 1900 - 1999 future kernel use
     * 2000 is for otherwise unclassified kernel audit messages (legacy)
     * 2001 - 2099 unused (kernel)
     * 2100 - 2199 user space anomaly records
     * 2200 - 2299 user space actions taken in response to anomalies
     * 2300 - 2399 user space generated LSPP events
     * 2400 - 2499 user space crypto events
     * 2500 - 2999 future user space (maybe integrity labels and related events)
     *
     * Messages from 1000-1199 are bi-directional. 1200-1299 & 2100 - 2999 are
     * exclusively user space. 1300-2099 is kernel --> user space 
     * communication.
     */
    #define AUDIT_GET		1000	/* Get status */
    #define AUDIT_SET		1001	/* Set status (enable/disable/auditd) */
    #define AUDIT_LIST		1002	/* List syscall rules -- deprecated */
    #define AUDIT_ADD		1003	/* Add syscall rule -- deprecated */
    #define AUDIT_DEL		1004	/* Delete syscall rule -- deprecated */
    #define AUDIT_USER		1005	/* Message from userspace -- deprecated */
    #define AUDIT_LOGIN		1006	/* Define the login id and information */
    #define AUDIT_WATCH_INS		1007	/* Insert file/dir watch entry */
    #define AUDIT_WATCH_REM		1008	/* Remove file/dir watch entry */
    #define AUDIT_WATCH_LIST	1009	/* List all file/dir watches */
    #define AUDIT_SIGNAL_INFO	1010	/* Get info about sender of signal to auditd */
    #define AUDIT_ADD_RULE		1011	/* Add syscall filtering rule */
    #define AUDIT_DEL_RULE		1012	/* Delete syscall filtering rule */
    #define AUDIT_LIST_RULES	1013	/* List syscall filtering rules */
    #define AUDIT_TRIM		1014	/* Trim junk from watched tree */
    #define AUDIT_MAKE_EQUIV	1015	/* Append to watched tree */
    #define AUDIT_TTY_GET		1016	/* Get TTY auditing status */
    #define AUDIT_TTY_SET		1017	/* Set TTY auditing status */
    
    #define AUDIT_FIRST_USER_MSG	1100	/* Userspace messages mostly uninteresting to kernel */
    #define AUDIT_USER_AVC		1107	/* We filter this differently */
    #define AUDIT_USER_TTY		1124	/* Non-ICANON TTY input meaning */
    #define AUDIT_LAST_USER_MSG	1199
    #define AUDIT_FIRST_USER_MSG2	2100	/* More user space messages */
    #define AUDIT_LAST_USER_MSG2	2999
     
    #define AUDIT_DAEMON_START      1200    /* Daemon startup record */
    #define AUDIT_DAEMON_END        1201    /* Daemon normal stop record */
    #define AUDIT_DAEMON_ABORT      1202    /* Daemon error stop record */
    #define AUDIT_DAEMON_CONFIG     1203    /* Daemon config change */
    
    #define AUDIT_SYSCALL		1300	/* Syscall event */
    /* #define AUDIT_FS_WATCH	1301	 * Deprecated */
    #define AUDIT_PATH		1302	/* Filename path information */
    #define AUDIT_IPC		1303	/* IPC record */
    #define AUDIT_SOCKETCALL	1304	/* sys_socketcall arguments */
    #define AUDIT_CONFIG_CHANGE	1305	/* Audit system configuration change */
    #define AUDIT_SOCKADDR		1306	/* sockaddr copied as syscall arg */
    #define AUDIT_CWD		1307	/* Current working directory */
    #define AUDIT_EXECVE		1309	/* execve arguments */
    #define AUDIT_IPC_SET_PERM	1311	/* IPC new permissions record type */
    #define AUDIT_MQ_OPEN		1312	/* POSIX MQ open record type */
    #define AUDIT_MQ_SENDRECV	1313	/* POSIX MQ send/receive record type */
    #define AUDIT_MQ_NOTIFY		1314	/* POSIX MQ notify record type */
    #define AUDIT_MQ_GETSETATTR	1315	/* POSIX MQ get/set attribute record type */
    #define AUDIT_KERNEL_OTHER	1316	/* For use by 3rd party modules */
    #define AUDIT_FD_PAIR		1317    /* audit record for pipe/socketpair */
    #define AUDIT_OBJ_PID		1318	/* ptrace target */
    #define AUDIT_TTY		1319	/* Input on an administrative TTY */
    #define AUDIT_EOE		1320	/* End of multi-record event */
    #define AUDIT_BPRM_FCAPS	1321	/* Information about fcaps increasing perms */
    #define AUDIT_CAPSET		1322	/* Record showing argument to sys_capset */
    #define AUDIT_MMAP		1323	/* Record showing descriptor and flags in mmap */
    #define AUDIT_NETFILTER_PKT	1324	/* Packets traversing netfilter chains */
    #define AUDIT_NETFILTER_CFG	1325	/* Netfilter chain modifications */
    
    #define AUDIT_AVC		1400	/* SE Linux avc denial or grant */
    #define AUDIT_SELINUX_ERR	1401	/* Internal SE Linux Errors */
    #define AUDIT_AVC_PATH		1402	/* dentry, vfsmount pair from avc */
    #define AUDIT_MAC_POLICY_LOAD	1403	/* Policy file load */
    #define AUDIT_MAC_STATUS	1404	/* Changed enforcing,permissive,off */
    #define AUDIT_MAC_CONFIG_CHANGE	1405	/* Changes to booleans */
    #define AUDIT_MAC_UNLBL_ALLOW	1406	/* NetLabel: allow unlabeled traffic */
    #define AUDIT_MAC_CIPSOV4_ADD	1407	/* NetLabel: add CIPSOv4 DOI entry */
    #define AUDIT_MAC_CIPSOV4_DEL	1408	/* NetLabel: del CIPSOv4 DOI entry */
    #define AUDIT_MAC_MAP_ADD	1409	/* NetLabel: add LSM domain mapping */
    #define AUDIT_MAC_MAP_DEL	1410	/* NetLabel: del LSM domain mapping */
    #define AUDIT_MAC_IPSEC_ADDSA	1411	/* Not used */
    #define AUDIT_MAC_IPSEC_DELSA	1412	/* Not used  */
    #define AUDIT_MAC_IPSEC_ADDSPD	1413	/* Not used */
    #define AUDIT_MAC_IPSEC_DELSPD	1414	/* Not used */
    #define AUDIT_MAC_IPSEC_EVENT	1415	/* Audit an IPSec event */
    #define AUDIT_MAC_UNLBL_STCADD	1416	/* NetLabel: add a static label */
    #define AUDIT_MAC_UNLBL_STCDEL	1417	/* NetLabel: del a static label */
    
    #define AUDIT_FIRST_KERN_ANOM_MSG   1700
    #define AUDIT_LAST_KERN_ANOM_MSG    1799
    #define AUDIT_ANOM_PROMISCUOUS      1700 /* Device changed promiscuous mode */
    #define AUDIT_ANOM_ABEND            1701 /* Process ended abnormally */
    #define AUDIT_INTEGRITY_DATA	    1800 /* Data integrity verification */
    #define AUDIT_INTEGRITY_METADATA    1801 /* Metadata integrity verification */
    #define AUDIT_INTEGRITY_STATUS	    1802 /* Integrity enable status */
    #define AUDIT_INTEGRITY_HASH	    1803 /* Integrity HASH type */
    #define AUDIT_INTEGRITY_PCR	    1804 /* PCR invalidation msgs */
    #define AUDIT_INTEGRITY_RULE	    1805 /* policy rule */
    
    #define AUDIT_KERNEL		2000	/* Asynchronous audit record. NOT A REQUEST. */
    
    /* Rule flags */
    #define AUDIT_FILTER_USER	0x00	/* Apply rule to user-generated messages */
    #define AUDIT_FILTER_TASK	0x01	/* Apply rule at task creation (not syscall) */
    #define AUDIT_FILTER_ENTRY	0x02	/* Apply rule at syscall entry */
    #define AUDIT_FILTER_WATCH	0x03	/* Apply rule to file system watches */
    #define AUDIT_FILTER_EXIT	0x04	/* Apply rule at syscall exit */
    #define AUDIT_FILTER_TYPE	0x05	/* Apply rule at audit_log_start */
    
    #define AUDIT_NR_FILTERS	6
    
    #define AUDIT_FILTER_PREPEND	0x10	/* Prepend to front of list */
    
    /* Rule actions */
    #define AUDIT_NEVER    0	/* Do not build context if rule matches */
    #define AUDIT_POSSIBLE 1	/* Build context if rule matches  */
    #define AUDIT_ALWAYS   2	/* Generate audit record if rule matches */
    
    /* Rule structure sizes -- if these change, different AUDIT_ADD and
     * AUDIT_LIST commands must be implemented. */
    #define AUDIT_MAX_FIELDS   64
    #define AUDIT_MAX_KEY_LEN  256
    #define AUDIT_BITMASK_SIZE 64
    #define AUDIT_WORD(nr) ((__u32)((nr)/32))
    #define AUDIT_BIT(nr)  (1 << ((nr) - AUDIT_WORD(nr)*32))
    
    #define AUDIT_SYSCALL_CLASSES 16
    #define AUDIT_CLASS_DIR_WRITE 0
    #define AUDIT_CLASS_DIR_WRITE_32 1
    #define AUDIT_CLASS_CHATTR 2
    #define AUDIT_CLASS_CHATTR_32 3
    #define AUDIT_CLASS_READ 4
    #define AUDIT_CLASS_READ_32 5
    #define AUDIT_CLASS_WRITE 6
    #define AUDIT_CLASS_WRITE_32 7
    #define AUDIT_CLASS_SIGNAL 8
    #define AUDIT_CLASS_SIGNAL_32 9
    
    /* This bitmask is used to validate user input.  It represents all bits that
     * are currently used in an audit field constant understood by the kernel.
     * If you are adding a new #define AUDIT_<whatever>, please ensure that
     * AUDIT_UNUSED_BITS is updated if need be. */
    #define AUDIT_UNUSED_BITS	0x07FFFC00
    
    
    /* Rule fields */
    				/* These are useful when checking the
    				 * task structure at task creation time
    				 * (AUDIT_PER_TASK).  */
    #define AUDIT_PID	0
    #define AUDIT_UID	1
    #define AUDIT_EUID	2
    #define AUDIT_SUID	3
    #define AUDIT_FSUID	4
    #define AUDIT_GID	5
    #define AUDIT_EGID	6
    #define AUDIT_SGID	7
    #define AUDIT_FSGID	8
    #define AUDIT_LOGINUID	9
    #define AUDIT_PERS	10
    #define AUDIT_ARCH	11
    #define AUDIT_MSGTYPE	12
    #define AUDIT_SUBJ_USER	13	/* security label user */
    #define AUDIT_SUBJ_ROLE	14	/* security label role */
    #define AUDIT_SUBJ_TYPE	15	/* security label type */
    #define AUDIT_SUBJ_SEN	16	/* security label sensitivity label */
    #define AUDIT_SUBJ_CLR	17	/* security label clearance label */
    #define AUDIT_PPID	18
    #define AUDIT_OBJ_USER	19
    #define AUDIT_OBJ_ROLE	20
    #define AUDIT_OBJ_TYPE	21
    #define AUDIT_OBJ_LEV_LOW	22
    #define AUDIT_OBJ_LEV_HIGH	23
    
    				/* These are ONLY useful when checking
    				 * at syscall exit time (AUDIT_AT_EXIT). */
    #define AUDIT_DEVMAJOR	100
    #define AUDIT_DEVMINOR	101
    #define AUDIT_INODE	102
    #define AUDIT_EXIT	103
    #define AUDIT_SUCCESS   104	/* exit >= 0; value ignored */
    #define AUDIT_WATCH	105
    #define AUDIT_PERM	106
    #define AUDIT_DIR	107
    #define AUDIT_FILETYPE	108
    
    #define AUDIT_ARG0      200
    #define AUDIT_ARG1      (AUDIT_ARG0+1)
    #define AUDIT_ARG2      (AUDIT_ARG0+2)
    #define AUDIT_ARG3      (AUDIT_ARG0+3)
    
    #define AUDIT_FILTERKEY	210
    
    #define AUDIT_NEGATE			0x80000000
    
    /* These are the supported operators.
     *	4  2  1  8
     *	=  >  <  ?
     *	----------
     *	0  0  0	 0	00	nonsense
     *	0  0  0	 1	08	&  bit mask
     *	0  0  1	 0	10	<
     *	0  1  0	 0	20	>
     *	0  1  1	 0	30	!=
     *	1  0  0	 0	40	=
     *	1  0  0	 1	48	&=  bit test
     *	1  0  1	 0	50	<=
     *	1  1  0	 0	60	>=
     *	1  1  1	 1	78	all operators
     */
    #define AUDIT_BIT_MASK			0x08000000
    #define AUDIT_LESS_THAN			0x10000000
    #define AUDIT_GREATER_THAN		0x20000000
    #define AUDIT_NOT_EQUAL			0x30000000
    #define AUDIT_EQUAL			0x40000000
    #define AUDIT_BIT_TEST			(AUDIT_BIT_MASK|AUDIT_EQUAL)
    #define AUDIT_LESS_THAN_OR_EQUAL	(AUDIT_LESS_THAN|AUDIT_EQUAL)
    #define AUDIT_GREATER_THAN_OR_EQUAL	(AUDIT_GREATER_THAN|AUDIT_EQUAL)
    #define AUDIT_OPERATORS			(AUDIT_EQUAL|AUDIT_NOT_EQUAL|AUDIT_BIT_MASK)
    
    enum {
    	Audit_equal,
    	Audit_not_equal,
    	Audit_bitmask,
    	Audit_bittest,
    	Audit_lt,
    	Audit_gt,
    	Audit_le,
    	Audit_ge,
    	Audit_bad
    };
    
    /* Status symbols */
    				/* Mask values */
    #define AUDIT_STATUS_ENABLED		0x0001
    #define AUDIT_STATUS_FAILURE		0x0002
    #define AUDIT_STATUS_PID		0x0004
    #define AUDIT_STATUS_RATE_LIMIT		0x0008
    #define AUDIT_STATUS_BACKLOG_LIMIT	0x0010
    				/* Failure-to-log actions */
    #define AUDIT_FAIL_SILENT	0
    #define AUDIT_FAIL_PRINTK	1
    #define AUDIT_FAIL_PANIC	2
    
    /* distinguish syscall tables */
    #define __AUDIT_ARCH_64BIT 0x80000000
    #define __AUDIT_ARCH_LE	   0x40000000
    #define AUDIT_ARCH_ALPHA	(EM_ALPHA|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
    #define AUDIT_ARCH_ARM		(EM_ARM|__AUDIT_ARCH_LE)
    #define AUDIT_ARCH_ARMEB	(EM_ARM)
    #define AUDIT_ARCH_CRIS		(EM_CRIS|__AUDIT_ARCH_LE)
    #define AUDIT_ARCH_FRV		(EM_FRV)
    #define AUDIT_ARCH_H8300	(EM_H8_300)
    #define AUDIT_ARCH_I386		(EM_386|__AUDIT_ARCH_LE)
    #define AUDIT_ARCH_IA64		(EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
    #define AUDIT_ARCH_M32R		(EM_M32R)
    #define AUDIT_ARCH_M68K		(EM_68K)
    #define AUDIT_ARCH_MIPS		(EM_MIPS)
    #define AUDIT_ARCH_MIPSEL	(EM_MIPS|__AUDIT_ARCH_LE)
    #define AUDIT_ARCH_MIPS64	(EM_MIPS|__AUDIT_ARCH_64BIT)
    #define AUDIT_ARCH_MIPSEL64	(EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
    #define AUDIT_ARCH_PARISC	(EM_PARISC)
    #define AUDIT_ARCH_PARISC64	(EM_PARISC|__AUDIT_ARCH_64BIT)
    #define AUDIT_ARCH_PPC		(EM_PPC)
    #define AUDIT_ARCH_PPC64	(EM_PPC64|__AUDIT_ARCH_64BIT)
    #define AUDIT_ARCH_S390		(EM_S390)
    #define AUDIT_ARCH_S390X	(EM_S390|__AUDIT_ARCH_64BIT)
    #define AUDIT_ARCH_SH		(EM_SH)
    #define AUDIT_ARCH_SHEL		(EM_SH|__AUDIT_ARCH_LE)
    #define AUDIT_ARCH_SH64		(EM_SH|__AUDIT_ARCH_64BIT)
    #define AUDIT_ARCH_SHEL64	(EM_SH|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
    #define AUDIT_ARCH_SPARC	(EM_SPARC)
    #define AUDIT_ARCH_SPARC64	(EM_SPARCV9|__AUDIT_ARCH_64BIT)
    #define AUDIT_ARCH_X86_64	(EM_X86_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
    
    #define AUDIT_PERM_EXEC		1
    #define AUDIT_PERM_WRITE	2
    #define AUDIT_PERM_READ		4
    #define AUDIT_PERM_ATTR		8
    
    struct audit_status {
    	__u32		mask;		/* Bit mask for valid entries */
    	__u32		enabled;	/* 1 = enabled, 0 = disabled */
    	__u32		failure;	/* Failure-to-log action */
    	__u32		pid;		/* pid of auditd process */
    	__u32		rate_limit;	/* messages rate limit (per second) */
    	__u32		backlog_limit;	/* waiting messages limit */
    	__u32		lost;		/* messages lost */
    	__u32		backlog;	/* messages waiting in queue */
    };
    
    struct audit_tty_status {
    	__u32		enabled; /* 1 = enabled, 0 = disabled */
    };
    
    /* audit_rule_data supports filter rules with both integer and string
     * fields.  It corresponds with AUDIT_ADD_RULE, AUDIT_DEL_RULE and
     * AUDIT_LIST_RULES requests.
     */
    struct audit_rule_data {
    	__u32		flags;	/* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */
    	__u32		action;	/* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */
    	__u32		field_count;
    	__u32		mask[AUDIT_BITMASK_SIZE]; /* syscall(s) affected */
    	__u32		fields[AUDIT_MAX_FIELDS];
    	__u32		values[AUDIT_MAX_FIELDS];
    	__u32		fieldflags[AUDIT_MAX_FIELDS];
    	__u32		buflen;	/* total length of string fields */
    	char		buf[0];	/* string fields buffer */
    };
    
    /* audit_rule is supported to maintain backward compatibility with
     * userspace.  It supports integer fields only and corresponds to
     * AUDIT_ADD, AUDIT_DEL and AUDIT_LIST requests.
     */
    struct audit_rule {		/* for AUDIT_LIST, AUDIT_ADD, and AUDIT_DEL */
    	__u32		flags;	/* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */
    	__u32		action;	/* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */
    	__u32		field_count;
    	__u32		mask[AUDIT_BITMASK_SIZE];
    	__u32		fields[AUDIT_MAX_FIELDS];
    	__u32		values[AUDIT_MAX_FIELDS];
    };
    
    #ifdef __KERNEL__
    #include <linux/sched.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;
    	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);
    #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 void __audit_getname(const char *name);
    extern void audit_putname(const char *name);
    extern void __audit_inode(const char *name, const struct dentry *dentry);
    extern void __audit_inode_child(const struct dentry *dentry,
    				const struct inode *parent);
    extern void __audit_seccomp(unsigned long syscall);
    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(!audit_dummy_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 void audit_getname(const char *name)
    {
    	if (unlikely(!audit_dummy_context()))
    		__audit_getname(name);
    }
    static inline void audit_inode(const char *name, const struct dentry *dentry) {
    	if (unlikely(!audit_dummy_context()))
    		__audit_inode(name, dentry);
    }
    static inline void audit_inode_child(const struct dentry *dentry,
    				     const struct inode *parent) {
    	if (unlikely(!audit_dummy_context()))
    		__audit_inode_child(dentry, parent);
    }
    void audit_core_dumps(long signr);
    
    static inline void audit_seccomp(unsigned long syscall)
    {
    	if (unlikely(!audit_dummy_context()))
    		__audit_seccomp(syscall);
    }
    
    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(struct task_struct *task, uid_t loginuid);
    #define audit_get_loginuid(t) ((t)->loginuid)
    #define audit_get_sessionid(t) ((t)->sessionid)
    extern void audit_log_task_context(struct audit_buffer *ab);
    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 void __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 void audit_socketcall(int nargs, unsigned long *args)
    {
    	if (unlikely(!audit_dummy_context()))
    		__audit_socketcall(nargs, args);
    }
    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 */
    #define audit_alloc(t) ({ 0; })
    #define audit_free(t) do { ; } while (0)
    #define audit_syscall_entry(ta,a,b,c,d,e) do { ; } while (0)
    #define audit_syscall_exit(r) do { ; } while (0)
    #define audit_dummy_context() 1
    #define audit_getname(n) do { ; } while (0)
    #define audit_putname(n) do { ; } while (0)
    #define __audit_inode(n,d) do { ; } while (0)
    #define __audit_inode_child(i,p) do { ; } while (0)
    #define audit_inode(n,d) do { (void)(d); } while (0)
    #define audit_inode_child(i,p) do { ; } while (0)
    #define audit_core_dumps(i) do { ; } while (0)
    #define audit_seccomp(i) do { ; } while (0)
    #define auditsc_get_stamp(c,t,s) (0)
    #define audit_get_loginuid(t) (-1)
    #define audit_get_sessionid(t) (-1)
    #define audit_log_task_context(b) do { ; } while (0)
    #define audit_ipc_obj(i) ((void)0)
    #define audit_ipc_set_perm(q,u,g,m) ((void)0)
    #define audit_bprm(p) ({ 0; })
    #define audit_socketcall(n,a) ((void)0)
    #define audit_fd_pair(n,a) ((void)0)
    #define audit_sockaddr(len, addr) ({ 0; })
    #define audit_mq_open(o,m,a) ((void)0)
    #define audit_mq_sendrecv(d,l,p,t) ((void)0)
    #define audit_mq_notify(d,n) ((void)0)
    #define audit_mq_getsetattr(d,s) ((void)0)
    #define audit_log_bprm_fcaps(b, ncr, ocr) ({ 0; })
    #define audit_log_capset(pid, ncr, ocr) ((void)0)
    #define audit_mmap_fd(fd, flags) ((void)0)
    #define audit_ptrace(t) ((void)0)
    #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);
    #define audit_log_string(a,b) audit_log_n_string(a, b, strlen(b));
    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,
    					     struct path *path);
    extern void		    audit_log_key(struct audit_buffer *ab,
    					  char *key);
    extern void		    audit_log_lost(const char *message);
    #ifdef CONFIG_SECURITY
    extern void 		    audit_log_secctx(struct audit_buffer *ab, u32 secid);
    #else
    #define audit_log_secctx(b,s) do { ; } while (0)
    #endif
    
    extern int		    audit_update_lsm_rules(void);
    
    				/* Private API (for audit.c only) */
    extern int audit_filter_user(struct netlink_skb_parms *cb);
    extern int audit_filter_type(int type);
    extern int  audit_receive_filter(int type, int pid, int uid, int seq,
    				void *data, size_t datasz, uid_t loginuid,
    				u32 sessionid, u32 sid);
    extern int audit_enabled;
    #else
    #define audit_log(c,g,t,f,...) do { ; } while (0)
    #define audit_log_start(c,g,t) ({ NULL; })
    #define audit_log_vformat(b,f,a) do { ; } while (0)
    #define audit_log_format(b,f,...) do { ; } while (0)
    #define audit_log_end(b) do { ; } while (0)
    #define audit_log_n_hex(a,b,l) do { ; } while (0)
    #define audit_log_n_string(a,c,l) do { ; } while (0)
    #define audit_log_string(a,c) do { ; } while (0)
    #define audit_log_n_untrustedstring(a,n,s) do { ; } while (0)
    #define audit_log_untrustedstring(a,s) do { ; } while (0)
    #define audit_log_d_path(b, p, d) do { ; } while (0)
    #define audit_log_key(b, k) do { ; } while (0)
    #define audit_log_secctx(b,s) do { ; } while (0)
    #define audit_enabled 0
    #endif
    #endif
    #endif