diff options
author | Stephen Rothwell <sfr@canb.auug.org.au> | 2009-11-26 16:50:27 +1100 |
---|---|---|
committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2009-11-26 16:50:27 +1100 |
commit | fe13c9bbd1e997396117300c1310ee9f55808c3b (patch) | |
tree | 241d1dd4e4c0690a12c1d6926635d19369d31d85 /include/linux/fanotify.h | |
parent | e3fb63b2d663e3c73577dcb189bf51a3faf496d5 (diff) | |
parent | 162308729bc6d196ae1d1b8225e407175785e931 (diff) |
Merge remote branch 'fsnotify/for-next'
Conflicts:
arch/x86/ia32/ia32entry.S
arch/x86/include/asm/unistd_32.h
arch/x86/include/asm/unistd_64.h
arch/x86/kernel/syscall_table_32.S
fs/afs/write.c
fs/cifs/dir.c
fs/ubifs/file.c
include/asm-generic/fcntl.h
net/socket.c
Diffstat (limited to 'include/linux/fanotify.h')
-rw-r--r-- | include/linux/fanotify.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h new file mode 100644 index 000000000000..c1c66162a46c --- /dev/null +++ b/include/linux/fanotify.h @@ -0,0 +1,81 @@ +#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; +} __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 */ |