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authorGlenn Elliott <gelliott@cs.unc.edu>2012-03-04 19:47:13 -0500
committerGlenn Elliott <gelliott@cs.unc.edu>2012-03-04 19:47:13 -0500
commitc71c03bda1e86c9d5198c5d83f712e695c4f2a1e (patch)
treeecb166cb3e2b7e2adb3b5e292245fefd23381ac8 /include/linux/fanotify.h
parentea53c912f8a86a8567697115b6a0d8152beee5c8 (diff)
parent6a00f206debf8a5c8899055726ad127dbeeed098 (diff)
Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp
Conflicts: litmus/sched_cedf.c
Diffstat (limited to 'include/linux/fanotify.h')
-rw-r--r--include/linux/fanotify.h46
1 files changed, 34 insertions, 12 deletions
diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h
index 63531a6b4d2a..6c6133f76e16 100644
--- a/include/linux/fanotify.h
+++ b/include/linux/fanotify.h
@@ -6,18 +6,19 @@
6/* the following events that user-space can register for */ 6/* the following events that user-space can register for */
7#define FAN_ACCESS 0x00000001 /* File was accessed */ 7#define FAN_ACCESS 0x00000001 /* File was accessed */
8#define FAN_MODIFY 0x00000002 /* File was modified */ 8#define FAN_MODIFY 0x00000002 /* File was modified */
9#define FAN_CLOSE_WRITE 0x00000008 /* Unwrittable file closed */ 9#define FAN_CLOSE_WRITE 0x00000008 /* Writtable file closed */
10#define FAN_CLOSE_NOWRITE 0x00000010 /* Writtable file closed */ 10#define FAN_CLOSE_NOWRITE 0x00000010 /* Unwrittable file closed */
11#define FAN_OPEN 0x00000020 /* File was opened */ 11#define FAN_OPEN 0x00000020 /* File was opened */
12 12
13#define FAN_EVENT_ON_CHILD 0x08000000 /* interested in child events */
14
15/* FIXME currently Q's have no limit.... */
16#define FAN_Q_OVERFLOW 0x00004000 /* Event queued overflowed */ 13#define FAN_Q_OVERFLOW 0x00004000 /* Event queued overflowed */
17 14
18#define FAN_OPEN_PERM 0x00010000 /* File open in perm check */ 15#define FAN_OPEN_PERM 0x00010000 /* File open in perm check */
19#define FAN_ACCESS_PERM 0x00020000 /* File accessed in perm check */ 16#define FAN_ACCESS_PERM 0x00020000 /* File accessed in perm check */
20 17
18#define FAN_ONDIR 0x40000000 /* event occurred against dir */
19
20#define FAN_EVENT_ON_CHILD 0x08000000 /* interested in child events */
21
21/* helper events */ 22/* helper events */
22#define FAN_CLOSE (FAN_CLOSE_WRITE | FAN_CLOSE_NOWRITE) /* close */ 23#define FAN_CLOSE (FAN_CLOSE_WRITE | FAN_CLOSE_NOWRITE) /* close */
23 24
@@ -25,7 +26,19 @@
25#define FAN_CLOEXEC 0x00000001 26#define FAN_CLOEXEC 0x00000001
26#define FAN_NONBLOCK 0x00000002 27#define FAN_NONBLOCK 0x00000002
27 28
28#define FAN_ALL_INIT_FLAGS (FAN_CLOEXEC | FAN_NONBLOCK) 29/* These are NOT bitwise flags. Both bits are used togther. */
30#define FAN_CLASS_NOTIF 0x00000000
31#define FAN_CLASS_CONTENT 0x00000004
32#define FAN_CLASS_PRE_CONTENT 0x00000008
33#define FAN_ALL_CLASS_BITS (FAN_CLASS_NOTIF | FAN_CLASS_CONTENT | \
34 FAN_CLASS_PRE_CONTENT)
35
36#define FAN_UNLIMITED_QUEUE 0x00000010
37#define FAN_UNLIMITED_MARKS 0x00000020
38
39#define FAN_ALL_INIT_FLAGS (FAN_CLOEXEC | FAN_NONBLOCK | \
40 FAN_ALL_CLASS_BITS | FAN_UNLIMITED_QUEUE |\
41 FAN_UNLIMITED_MARKS)
29 42
30/* flags used for fanotify_modify_mark() */ 43/* flags used for fanotify_modify_mark() */
31#define FAN_MARK_ADD 0x00000001 44#define FAN_MARK_ADD 0x00000001
@@ -36,6 +49,10 @@
36#define FAN_MARK_IGNORED_MASK 0x00000020 49#define FAN_MARK_IGNORED_MASK 0x00000020
37#define FAN_MARK_IGNORED_SURV_MODIFY 0x00000040 50#define FAN_MARK_IGNORED_SURV_MODIFY 0x00000040
38#define FAN_MARK_FLUSH 0x00000080 51#define FAN_MARK_FLUSH 0x00000080
52#ifdef __KERNEL__
53/* not valid from userspace, only kernel internal */
54#define FAN_MARK_ONDIR 0x00000100
55#endif
39 56
40#define FAN_ALL_MARK_FLAGS (FAN_MARK_ADD |\ 57#define FAN_ALL_MARK_FLAGS (FAN_MARK_ADD |\
41 FAN_MARK_REMOVE |\ 58 FAN_MARK_REMOVE |\
@@ -43,7 +60,8 @@
43 FAN_MARK_ONLYDIR |\ 60 FAN_MARK_ONLYDIR |\
44 FAN_MARK_MOUNT |\ 61 FAN_MARK_MOUNT |\
45 FAN_MARK_IGNORED_MASK |\ 62 FAN_MARK_IGNORED_MASK |\
46 FAN_MARK_IGNORED_SURV_MODIFY) 63 FAN_MARK_IGNORED_SURV_MODIFY |\
64 FAN_MARK_FLUSH)
47 65
48/* 66/*
49 * All of the events - we build the list by hand so that we can add flags in 67 * All of the events - we build the list by hand so that we can add flags in
@@ -65,24 +83,28 @@
65 FAN_ALL_PERM_EVENTS |\ 83 FAN_ALL_PERM_EVENTS |\
66 FAN_Q_OVERFLOW) 84 FAN_Q_OVERFLOW)
67 85
68#define FANOTIFY_METADATA_VERSION 2 86#define FANOTIFY_METADATA_VERSION 3
69 87
70struct fanotify_event_metadata { 88struct fanotify_event_metadata {
71 __u32 event_len; 89 __u32 event_len;
72 __u32 vers; 90 __u8 vers;
73 __u64 mask; 91 __u8 reserved;
92 __u16 metadata_len;
93 __aligned_u64 mask;
74 __s32 fd; 94 __s32 fd;
75 __s32 pid; 95 __s32 pid;
76} __attribute__ ((packed)); 96};
77 97
78struct fanotify_response { 98struct fanotify_response {
79 __s32 fd; 99 __s32 fd;
80 __u32 response; 100 __u32 response;
81} __attribute__ ((packed)); 101};
82 102
83/* Legit userspace responses to a _PERM event */ 103/* Legit userspace responses to a _PERM event */
84#define FAN_ALLOW 0x01 104#define FAN_ALLOW 0x01
85#define FAN_DENY 0x02 105#define FAN_DENY 0x02
106/* No fd set in event */
107#define FAN_NOFD -1
86 108
87/* Helper functions to deal with fanotify_event_metadata buffers */ 109/* Helper functions to deal with fanotify_event_metadata buffers */
88#define FAN_EVENT_METADATA_LEN (sizeof(struct fanotify_event_metadata)) 110#define FAN_EVENT_METADATA_LEN (sizeof(struct fanotify_event_metadata))