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     1ˆÄÃƒuçœÂ¾Æ Î    1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _LINUX_FANOTIFY_H
#define _LINUX_FANOTIFY_H

#include <linux/types.h>

/* the following events that user-space can register for */
#define FAN_ACCESS		0x00000001	/* File was accessed */
#define FAN_MODIFY		0x00000002	/* File was modified */
#define FAN_ATTRIB		0x00000004	/* Metadata changed */
#define FAN_CLOSE_WRITE		0x00000008	/* Writtable file closed */
#define FAN_CLOSE_NOWRITE	0x00000010	/* Unwrittable file closed */
#define FAN_OPEN		0x00000020	/* File was opened */
#define FAN_MOVED_FROM		0x00000040	/* File was moved from X */
#define FAN_MOVED_TO		0x00000080	/* File was moved to Y */
#define FAN_CREATE		0x00000100	/* Subfile was created */
#define FAN_DELETE		0x00000200	/* Subfile was deleted */
#define FAN_DELETE_SELF		0x00000400	/* Self was deleted */
#define FAN_MOVE_SELF		0x00000800	/* Self was moved */
#define FAN_OPEN_EXEC		0x00001000	/* File was opened for exec */

#define FAN_Q_OVERFLOW		0x00004000	/* Event queued overflowed */
#define FAN_FS_ERROR		0x00008000	/* Filesystem error */

#define FAN_OPEN_PERM		0x00010000	/* File open in perm check */
#define FAN_ACCESS_PERM		0x00020000	/* File accessed in perm check */
#define FAN_OPEN_EXEC_PERM	0x00040000	/* File open/exec in perm check */

#define FAN_EVENT_ON_CHILD	0x08000000	/* Interested in child events */

#define FAN_RENAME		0x10000000	/* File was renamed */

#define FAN_ONDIR		0x40000000	/* Event occurred against dir */

/* helper events */
#define FAN_CLOSE		(FAN_CLOSE_WRITE | FAN_CLOSE_NOWRITE) /* close */
#define FAN_MOVE		(FAN_MOVED_FROM | FAN_MOVED_TO) /* moves */

/* flags used for fanotify_init() */
#define FAN_CLOEXEC		0x00000001
#define FAN_NONBLOCK		0x00000002

/* These are NOT bitwise flags.  Both bits are used together.  */
#define FAN_CLASS_NOTIF		0x00000000
#define FAN_CLASS_CONTENT	0x00000004
#define FAN_CLASS_PRE_CONTENT	0x00000008

/* Deprecated - do not use this in programs and do not add new flags here! */
#define FAN_ALL_CLASS_BITS	(FAN_CLASS_NOTIF | FAN_CLASS_CONTENT | \
				 FAN_CLASS_PRE_CONTENT)

#define FAN_UNLIMITED_QUEUE	0x00000010
#define FAN_UNLIMITED_MARKS	0x00000020
#define FAN_ENABLE_AUDIT	0x00000040

/* Flags to determine fanotify event format */
#define FAN_REPORT_TID		0x00000100	/* event->pid is thread id */
#define FAN_REPORT_FID		0x00000200	/* Report unique file id */
#define FAN_REPORT_DIR_FID	0x00000400	/* Report unique directory id */
#define FAN_REPORT_NAME		0x00000800	/* Report events with name */
#define FAN_REPORT_TARGET_FID	0x00001000	/* Report dirent target id  */

/* Convenience macro - FAN_REPORT_NAME requires FAN_REPORT_DIR_FID */
#define FAN_REPORT_DFID_NAME	(FAN_REPORT_DIR_FID | FAN_REPORT_NAME)
/* Convenience macro - FAN_REPORT_TARGET_FID requires all other FID flags */
#define FAN_REPORT_DFID_NAME_TARGET (FAN_REPORT_DFID_NAME | \
				     FAN_REPORT_FID | FAN_REPORT_TARGET_FID)

/* Deprecated - do not use this in programs and do not add new flags here! */
#define FAN_ALL_INIT_FLAGS	(FAN_CLOEXEC | FAN_NONBLOCK | \
				 FAN_ALL_CLASS_BITS | FAN_UNLIMITED_QUEUE |\
				 FAN_UNLIMITED_MARKS)

/* flags used for fanotify_modify_mark() */
#define FAN_MARK_ADD		0x00000001
#define FAN_MARK_REMOVE		0x00000002
#define FAN_MARK_DONT_FOLLOW	0x00000004
#define FAN_MARK_ONLYDIR	0x00000008
/* FAN_MARK_MOUNT is		0x00000010 */
#define FAN_MARK_IGNORED_MASK	0x00000020
#define FAN_MARK_IGNORED_SURV_MODIFY	0x00000040
#define FAN_MARK_FLUSH		0x00000080
/* FAN_MARK_FILESYSTEM is	0x00000100 */
#define FAN_MARK_EVICTABLE	0x00000200
/* This bit is mutually exclusive with FAN_MARK_IGNORED_MASK bit */
#define FAN_MARK_IGNORE		0x00000400

/* These are NOT bitwise flags.  Both bits can be used togther.  */
#define FAN_MARK_INODE		0x00000000
#define FAN_MARK_MOUNT		0x00000010
#define FAN_MARK_FILESYSTEM	0x00000100

/*
 * Convenience macro - FAN_MARK_IGNORE requires FAN_MARK_IGNORED_SURV_MODIFY
 