Warning: That file was not part of the compilation database. It may have many parsing errors.
1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
---|---|
2 | #ifndef _LINUX_FANOTIFY_H |
3 | #define _LINUX_FANOTIFY_H |
4 | |
5 | #include <linux/types.h> |
6 | |
7 | /* the following events that user-space can register for */ |
8 | #define FAN_ACCESS 0x00000001 /* File was accessed */ |
9 | #define FAN_MODIFY 0x00000002 /* File was modified */ |
10 | #define FAN_CLOSE_WRITE 0x00000008 /* Writtable file closed */ |
11 | #define FAN_CLOSE_NOWRITE 0x00000010 /* Unwrittable file closed */ |
12 | #define FAN_OPEN 0x00000020 /* File was opened */ |
13 | |
14 | #define FAN_Q_OVERFLOW 0x00004000 /* Event queued overflowed */ |
15 | |
16 | #define FAN_OPEN_PERM 0x00010000 /* File open in perm check */ |
17 | #define FAN_ACCESS_PERM 0x00020000 /* File accessed in perm check */ |
18 | |
19 | #define FAN_ONDIR 0x40000000 /* event occurred against dir */ |
20 | |
21 | #define FAN_EVENT_ON_CHILD 0x08000000 /* interested in child events */ |
22 | |
23 | /* helper events */ |
24 | #define FAN_CLOSE (FAN_CLOSE_WRITE | FAN_CLOSE_NOWRITE) /* close */ |
25 | |
26 | /* flags used for fanotify_init() */ |
27 | #define FAN_CLOEXEC 0x00000001 |
28 | #define FAN_NONBLOCK 0x00000002 |
29 | |
30 | /* These are NOT bitwise flags. Both bits are used togther. */ |
31 | #define FAN_CLASS_NOTIF 0x00000000 |
32 | #define FAN_CLASS_CONTENT 0x00000004 |
33 | #define FAN_CLASS_PRE_CONTENT 0x00000008 |
34 | #define FAN_ALL_CLASS_BITS (FAN_CLASS_NOTIF | FAN_CLASS_CONTENT | \ |
35 | FAN_CLASS_PRE_CONTENT) |
36 | |
37 | #define FAN_UNLIMITED_QUEUE 0x00000010 |
38 | #define FAN_UNLIMITED_MARKS 0x00000020 |
39 | #define FAN_ENABLE_AUDIT 0x00000040 |
40 | |
41 | #define FAN_ALL_INIT_FLAGS (FAN_CLOEXEC | FAN_NONBLOCK | \ |
42 | FAN_ALL_CLASS_BITS | FAN_UNLIMITED_QUEUE |\ |
43 | FAN_UNLIMITED_MARKS) |
44 | |
45 | /* flags used for fanotify_modify_mark() */ |
46 | #define FAN_MARK_ADD 0x00000001 |
47 | #define FAN_MARK_REMOVE 0x00000002 |
48 | #define FAN_MARK_DONT_FOLLOW 0x00000004 |
49 | #define FAN_MARK_ONLYDIR 0x00000008 |
50 | #define FAN_MARK_MOUNT 0x00000010 |
51 | #define FAN_MARK_IGNORED_MASK 0x00000020 |
52 | #define FAN_MARK_IGNORED_SURV_MODIFY 0x00000040 |
53 | #define FAN_MARK_FLUSH 0x00000080 |
54 | |
55 | #define FAN_ALL_MARK_FLAGS (FAN_MARK_ADD |\ |
56 | FAN_MARK_REMOVE |\ |
57 | FAN_MARK_DONT_FOLLOW |\ |
58 | FAN_MARK_ONLYDIR |\ |
59 | FAN_MARK_MOUNT |\ |
60 | FAN_MARK_IGNORED_MASK |\ |
61 | FAN_MARK_IGNORED_SURV_MODIFY |\ |
62 | FAN_MARK_FLUSH) |
63 | |
64 | /* |
65 | * All of the events - we build the list by hand so that we can add flags in |
66 | * the future and not break backward compatibility. Apps will get only the |
67 | * events that they originally wanted. Be sure to add new events here! |
68 | */ |
69 | #define FAN_ALL_EVENTS (FAN_ACCESS |\ |
70 | FAN_MODIFY |\ |
71 | FAN_CLOSE |\ |
72 | FAN_OPEN) |
73 | |
74 | /* |
75 | * All events which require a permission response from userspace |
76 | */ |
77 | #define FAN_ALL_PERM_EVENTS (FAN_OPEN_PERM |\ |
78 | FAN_ACCESS_PERM) |
79 | |
80 | #define FAN_ALL_OUTGOING_EVENTS (FAN_ALL_EVENTS |\ |
81 | FAN_ALL_PERM_EVENTS |\ |
82 | FAN_Q_OVERFLOW) |
83 | |
84 | #define FANOTIFY_METADATA_VERSION 3 |
85 | |
86 | struct fanotify_event_metadata { |
87 | __u32 event_len; |
88 | __u8 vers; |
89 | __u8 reserved; |
90 | __u16 metadata_len; |
91 | __aligned_u64 mask; |
92 | __s32 fd; |
93 | __s32 pid; |
94 | }; |
95 | |
96 | struct fanotify_response { |
97 | __s32 fd; |
98 | __u32 response; |
99 | }; |
100 | |
101 | /* Legit userspace responses to a _PERM event */ |
102 | #define FAN_ALLOW 0x01 |
103 | #define FAN_DENY 0x02 |
104 | #define FAN_AUDIT 0x10 /* Bit mask to create audit record for result */ |
105 | |
106 | /* No fd set in event */ |
107 | #define FAN_NOFD -1 |
108 | |
109 | /* Helper functions to deal with fanotify_event_metadata buffers */ |
110 | #define FAN_EVENT_METADATA_LEN (sizeof(struct fanotify_event_metadata)) |
111 | |
112 | #define FAN_EVENT_NEXT(meta, len) ((len) -= (meta)->event_len, \ |
113 | (struct fanotify_event_metadata*)(((char *)(meta)) + \ |
114 | (meta)->event_len)) |
115 | |
116 | #define FAN_EVENT_OK(meta, len) ((long)(len) >= (long)FAN_EVENT_METADATA_LEN && \ |
117 | (long)(meta)->event_len >= (long)FAN_EVENT_METADATA_LEN && \ |
118 | (long)(meta)->event_len <= (long)(len)) |
119 | |
120 | #endif /* _LINUX_FANOTIFY_H */ |
121 |
Warning: That file was not part of the compilation database. It may have many parsing errors.