LXR linux/include/uapi/linux/fcntl.h

   1#ifndef _UAPI_LINUX_FCNTL_H
   2#define _UAPI_LINUX_FCNTL_H
   3
   4#include <asm/fcntl.h>
   5
   6#define F_SETLEASE      (F_LINUX_SPECIFIC_BASE + 0)
   7#define F_GETLEASE      (F_LINUX_SPECIFIC_BASE + 1)
   8
   9/*
  10 * Cancel a blocking posix lock; internal use only until we expose an
  11 * asynchronous lock api to userspace:
  12 */
  13#define F_CANCELLK      (F_LINUX_SPECIFIC_BASE + 5)
  14
  15/* Create a file descriptor with FD_CLOEXEC set. */
  16#define F_DUPFD_CLOEXEC (F_LINUX_SPECIFIC_BASE + 6)
  17
  18/*
  19 * Request nofications on a directory.
  20 * See below for events that may be notified.
  21 */
  22#define F_NOTIFY        (F_LINUX_SPECIFIC_BASE+2)
  23
  24/*
  25 * Set and get of pipe page size array
  26 */
  27#define F_SETPIPE_SZ    (F_LINUX_SPECIFIC_BASE + 7)
  28#define F_GETPIPE_SZ    (F_LINUX_SPECIFIC_BASE + 8)
  29
  30/*
  31 * Set/Get seals
  32 */
  33#define F_ADD_SEALS     (F_LINUX_SPECIFIC_BASE + 9)
  34#define F_GET_SEALS     (F_LINUX_SPECIFIC_BASE + 10)
  35
  36/*
  37 * Types of seals
  38 */
  39#define F_SEAL_SEAL     0x0001  /* prevent further seals from being set */
  40#define F_SEAL_SHRINK   0x0002  /* prevent file from shrinking */
  41#define F_SEAL_GROW     0x0004  /* prevent file from growing */
  42#define F_SEAL_WRITE    0x0008  /* prevent writes */
  43/* (1U << 31) is reserved for signed error codes */
  44
  45/*
  46 * Types of directory notifications that may be requested.
  47 */
  48#define DN_ACCESS       0x00000001      /* File accessed */
  49#define DN_MODIFY       0x00000002      /* File modified */
  50#define DN_CREATE       0x00000004      /* File created */
  51#define DN_DELETE       0x00000008      /* File removed */
  52#define DN_RENAME       0x00000010      /* File renamed */
  53#define DN_ATTRIB       0x00000020      /* File changed attibutes */
  54#define DN_MULTISHOT    0x80000000      /* Don't remove notifier */
  55
  56#define AT_FDCWD                -100    /* Special value used to indicate
  57                                           openat should use the current
  58                                           working directory. */
  59#define AT_SYMLINK_NOFOLLOW     0x100   /* Do not follow symbolic links.  */
  60#define AT_REMOVEDIR            0x200   /* Remove directory instead of
  61                                           unlinking file.  */
  62#define AT_SYMLINK_FOLLOW       0x400   /* Follow symbolic links.  */
  63#define AT_NO_AUTOMOUNT         0x800   /* Suppress terminal automount traversal */
  64#define AT_EMPTY_PATH           0x1000  /* Allow empty relative pathname */
  65
  66
  67#endif /* _UAPI_LINUX_FCNTL_H */
  68