32c3263221
Pass the process identifiers of the triggering processes to fanotify listeners: this information is useful for event filtering and logging. Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Eric Paris <eparis@redhat.com>
82 lines
2.4 KiB
C
82 lines
2.4 KiB
C
#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_CLOSE_WRITE 0x00000008 /* Unwrittable file closed */
|
|
#define FAN_CLOSE_NOWRITE 0x00000010 /* Writtable file closed */
|
|
#define FAN_OPEN 0x00000020 /* File was opened */
|
|
|
|
#define FAN_EVENT_ON_CHILD 0x08000000 /* interested in child events */
|
|
|
|
/* FIXME currently Q's have no limit.... */
|
|
#define FAN_Q_OVERFLOW 0x00004000 /* Event queued overflowed */
|
|
|
|
/* helper events */
|
|
#define FAN_CLOSE (FAN_CLOSE_WRITE | FAN_CLOSE_NOWRITE) /* close */
|
|
|
|
/* flags used for fanotify_init() */
|
|
#define FAN_CLOEXEC 0x00000001
|
|
#define FAN_NONBLOCK 0x00000002
|
|
|
|
#define FAN_ALL_INIT_FLAGS (FAN_CLOEXEC | FAN_NONBLOCK)
|
|
|
|
/* 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
|
|
|
|
#define FAN_ALL_MARK_FLAGS (FAN_MARK_ADD |\
|
|
FAN_MARK_REMOVE |\
|
|
FAN_MARK_DONT_FOLLOW |\
|
|
FAN_MARK_ONLYDIR)
|
|
|
|
/*
|
|
* All of the events - we build the list by hand so that we can add flags in
|
|
* the future and not break backward compatibility. Apps will get only the
|
|
* events that they originally wanted. Be sure to add new events here!
|
|
*/
|
|
#define FAN_ALL_EVENTS (FAN_ACCESS |\
|
|
FAN_MODIFY |\
|
|
FAN_CLOSE |\
|
|
FAN_OPEN)
|
|
|
|
/*
|
|
* All legal FAN bits userspace can request (although possibly not all
|
|
* at the same time.
|
|
*/
|
|
#define FAN_ALL_INCOMING_EVENTS (FAN_ALL_EVENTS |\
|
|
FAN_EVENT_ON_CHILD)
|
|
|
|
#define FAN_ALL_OUTGOING_EVENTS (FAN_ALL_EVENTS |\
|
|
FAN_Q_OVERFLOW)
|
|
|
|
#define FANOTIFY_METADATA_VERSION 1
|
|
|
|
struct fanotify_event_metadata {
|
|
__u32 event_len;
|
|
__u32 vers;
|
|
__s32 fd;
|
|
__u64 mask;
|
|
__s64 pid;
|
|
} __attribute__ ((packed));
|
|
|
|
/* Helper functions to deal with fanotify_event_metadata buffers */
|
|
#define FAN_EVENT_METADATA_LEN (sizeof(struct fanotify_event_metadata))
|
|
|
|
#define FAN_EVENT_NEXT(meta, len) ((len) -= (meta)->event_len, \
|
|
(struct fanotify_event_metadata*)(((char *)(meta)) + \
|
|
(meta)->event_len))
|
|
|
|
#define FAN_EVENT_OK(meta, len) ((long)(len) >= (long)FAN_EVENT_METADATA_LEN && \
|
|
(long)(meta)->event_len >= (long)FAN_EVENT_METADATA_LEN && \
|
|
(long)(meta)->event_len <= (long)(len))
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* _LINUX_FANOTIFY_H */
|