1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * Inode based directory notification for Linux
 4 *
 5 * Copyright (C) 2005 John McCutchan
 6 */
 
 7#ifndef _LINUX_INOTIFY_H
 8#define _LINUX_INOTIFY_H
 9
10#include <linux/sysctl.h>
11#include <uapi/linux/inotify.h>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
12
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
13extern struct ctl_table inotify_table[]; /* for sysctl */
14
15#define ALL_INOTIFY_BITS (IN_ACCESS | IN_MODIFY | IN_ATTRIB | IN_CLOSE_WRITE | \
16			  IN_CLOSE_NOWRITE | IN_OPEN | IN_MOVED_FROM | \
17			  IN_MOVED_TO | IN_CREATE | IN_DELETE | \
18			  IN_DELETE_SELF | IN_MOVE_SELF | IN_UNMOUNT | \
19			  IN_Q_OVERFLOW | IN_IGNORED | IN_ONLYDIR | \
20			  IN_DONT_FOLLOW | IN_EXCL_UNLINK | IN_MASK_ADD | \
21			  IN_MASK_CREATE | IN_ISDIR | IN_ONESHOT)
 
 
22
23#endif	/* _LINUX_INOTIFY_H */

 
 1/*
 2 * Inode based directory notification for Linux
 3 *
 4 * Copyright (C) 2005 John McCutchan
 5 */
 6
 7#ifndef _LINUX_INOTIFY_H
 8#define _LINUX_INOTIFY_H
 9
10/* For O_CLOEXEC and O_NONBLOCK */
11#include <linux/fcntl.h>
12#include <linux/types.h>
13
14/*
15 * struct inotify_event - structure read from the inotify device for each event
16 *
17 * When you are watching a directory, you will receive the filename for events
18 * such as IN_CREATE, IN_DELETE, IN_OPEN, IN_CLOSE, ..., relative to the wd.
19 */
20struct inotify_event {
21	__s32		wd;		/* watch descriptor */
22	__u32		mask;		/* watch mask */
23	__u32		cookie;		/* cookie to synchronize two events */
24	__u32		len;		/* length (including nulls) of name */
25	char		name[0];	/* stub for possible name */
26};
27
28/* the following are legal, implemented events that user-space can watch for */
29#define IN_ACCESS		0x00000001	/* File was accessed */
30#define IN_MODIFY		0x00000002	/* File was modified */
31#define IN_ATTRIB		0x00000004	/* Metadata changed */
32#define IN_CLOSE_WRITE		0x00000008	/* Writtable file was closed */
33#define IN_CLOSE_NOWRITE	0x00000010	/* Unwrittable file closed */
34#define IN_OPEN			0x00000020	/* File was opened */
35#define IN_MOVED_FROM		0x00000040	/* File was moved from X */
36#define IN_MOVED_TO		0x00000080	/* File was moved to Y */
37#define IN_CREATE		0x00000100	/* Subfile was created */
38#define IN_DELETE		0x00000200	/* Subfile was deleted */
39#define IN_DELETE_SELF		0x00000400	/* Self was deleted */
40#define IN_MOVE_SELF		0x00000800	/* Self was moved */
41
42/* the following are legal events.  they are sent as needed to any watch */
43#define IN_UNMOUNT		0x00002000	/* Backing fs was unmounted */
44#define IN_Q_OVERFLOW		0x00004000	/* Event queued overflowed */
45#define IN_IGNORED		0x00008000	/* File was ignored */
46
47/* helper events */
48#define IN_CLOSE		(IN_CLOSE_WRITE | IN_CLOSE_NOWRITE) /* close */
49#define IN_MOVE			(IN_MOVED_FROM | IN_MOVED_TO) /* moves */
50
51/* special flags */
52#define IN_ONLYDIR		0x01000000	/* only watch the path if it is a directory */
53#define IN_DONT_FOLLOW		0x02000000	/* don't follow a sym link */
54#define IN_EXCL_UNLINK		0x04000000	/* exclude events on unlinked objects */
55#define IN_MASK_ADD		0x20000000	/* add to the mask of an already existing watch */
56#define IN_ISDIR		0x40000000	/* event occurred against dir */
57#define IN_ONESHOT		0x80000000	/* only send event once */
58
59/*
60 * All of the events - we build the list by hand so that we can add flags in
61 * the future and not break backward compatibility.  Apps will get only the
62 * events that they originally wanted.  Be sure to add new events here!
63 */
64#define IN_ALL_EVENTS	(IN_ACCESS | IN_MODIFY | IN_ATTRIB | IN_CLOSE_WRITE | \
65			 IN_CLOSE_NOWRITE | IN_OPEN | IN_MOVED_FROM | \
66			 IN_MOVED_TO | IN_DELETE | IN_CREATE | IN_DELETE_SELF | \
67			 IN_MOVE_SELF)
68
69/* Flags for sys_inotify_init1.  */
70#define IN_CLOEXEC O_CLOEXEC
71#define IN_NONBLOCK O_NONBLOCK
72
73#ifdef __KERNEL__
74#include <linux/sysctl.h>
75extern struct ctl_table inotify_table[]; /* for sysctl */
76
77#define ALL_INOTIFY_BITS (IN_ACCESS | IN_MODIFY | IN_ATTRIB | IN_CLOSE_WRITE | \
78			  IN_CLOSE_NOWRITE | IN_OPEN | IN_MOVED_FROM | \
79			  IN_MOVED_TO | IN_CREATE | IN_DELETE | \
80			  IN_DELETE_SELF | IN_MOVE_SELF | IN_UNMOUNT | \
81			  IN_Q_OVERFLOW | IN_IGNORED | IN_ONLYDIR | \
82			  IN_DONT_FOLLOW | IN_EXCL_UNLINK | IN_MASK_ADD | \
83			  IN_ISDIR | IN_ONESHOT)
84
85#endif
86
87#endif	/* _LINUX_INOTIFY_H */