Merge tag 'for-4.20-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
[sfrench/cifs-2.6.git] / include / linux / fanotify.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_FANOTIFY_H
3 #define _LINUX_FANOTIFY_H
4
5 #include <uapi/linux/fanotify.h>
6
7 #define FAN_GROUP_FLAG(group, flag) \
8         ((group)->fanotify_data.flags & (flag))
9
10 /*
11  * Flags allowed to be passed from/to userspace.
12  *
13  * We intentionally do not add new bits to the old FAN_ALL_* constants, because
14  * they are uapi exposed constants. If there are programs out there using
15  * these constant, the programs may break if re-compiled with new uapi headers
16  * and then run on an old kernel.
17  */
18 #define FANOTIFY_CLASS_BITS     (FAN_CLASS_NOTIF | FAN_CLASS_CONTENT | \
19                                  FAN_CLASS_PRE_CONTENT)
20
21 #define FANOTIFY_INIT_FLAGS     (FANOTIFY_CLASS_BITS | \
22                                  FAN_REPORT_TID | \
23                                  FAN_CLOEXEC | FAN_NONBLOCK | \
24                                  FAN_UNLIMITED_QUEUE | FAN_UNLIMITED_MARKS)
25
26 #define FANOTIFY_MARK_TYPE_BITS (FAN_MARK_INODE | FAN_MARK_MOUNT | \
27                                  FAN_MARK_FILESYSTEM)
28
29 #define FANOTIFY_MARK_FLAGS     (FANOTIFY_MARK_TYPE_BITS | \
30                                  FAN_MARK_ADD | \
31                                  FAN_MARK_REMOVE | \
32                                  FAN_MARK_DONT_FOLLOW | \
33                                  FAN_MARK_ONLYDIR | \
34                                  FAN_MARK_IGNORED_MASK | \
35                                  FAN_MARK_IGNORED_SURV_MODIFY | \
36                                  FAN_MARK_FLUSH)
37
38 /* Events that user can request to be notified on */
39 #define FANOTIFY_EVENTS         (FAN_ACCESS | FAN_MODIFY | \
40                                  FAN_CLOSE | FAN_OPEN)
41
42 /* Events that require a permission response from user */
43 #define FANOTIFY_PERM_EVENTS    (FAN_OPEN_PERM | FAN_ACCESS_PERM)
44
45 /* Extra flags that may be reported with event or control handling of events */
46 #define FANOTIFY_EVENT_FLAGS    (FAN_EVENT_ON_CHILD | FAN_ONDIR)
47
48 /* Events that may be reported to user */
49 #define FANOTIFY_OUTGOING_EVENTS        (FANOTIFY_EVENTS | \
50                                          FANOTIFY_PERM_EVENTS | \
51                                          FAN_Q_OVERFLOW)
52
53 #define ALL_FANOTIFY_EVENT_BITS         (FANOTIFY_OUTGOING_EVENTS | \
54                                          FANOTIFY_EVENT_FLAGS)
55
56 /* Do not use these old uapi constants internally */
57 #undef FAN_ALL_CLASS_BITS
58 #undef FAN_ALL_INIT_FLAGS
59 #undef FAN_ALL_MARK_FLAGS
60 #undef FAN_ALL_EVENTS
61 #undef FAN_ALL_PERM_EVENTS
62 #undef FAN_ALL_OUTGOING_EVENTS
63
64 #endif /* _LINUX_FANOTIFY_H */