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  * Set/Get write life time hints. {GET,SET}_RW_HINT operate on the
  47  * underlying inode, while {GET,SET}_FILE_RW_HINT operate only on
  48  * the specific file.
  49  */
  50 #define F_GET_RW_HINT           (F_LINUX_SPECIFIC_BASE + 11)
  51 #define F_SET_RW_HINT           (F_LINUX_SPECIFIC_BASE + 12)
  52 #define F_GET_FILE_RW_HINT      (F_LINUX_SPECIFIC_BASE + 13)
  53 #define F_SET_FILE_RW_HINT      (F_LINUX_SPECIFIC_BASE + 14)
  54
  55 /*
  56  * Valid hint values for F_{GET,SET}_RW_HINT. 0 is "not set", or can be
  57  * used to clear any hints previously set.
  58  */
  59 #define RWF_WRITE_LIFE_NOT_SET  0
  60 #define RWH_WRITE_LIFE_NONE     1
  61 #define RWH_WRITE_LIFE_SHORT    2
  62 #define RWH_WRITE_LIFE_MEDIUM   3
  63 #define RWH_WRITE_LIFE_LONG     4
  64 #define RWH_WRITE_LIFE_EXTREME  5
  65
  66 /*
  67  * Types of directory notifications that may be requested.
  68  */
  69 #define DN_ACCESS       0x00000001      /* File accessed */
  70 #define DN_MODIFY       0x00000002      /* File modified */
  71 #define DN_CREATE       0x00000004      /* File created */
  72 #define DN_DELETE       0x00000008      /* File removed */
  73 #define DN_RENAME       0x00000010      /* File renamed */
  74 #define DN_ATTRIB       0x00000020      /* File changed attibutes */
  75 #define DN_MULTISHOT    0x80000000      /* Don't remove notifier */
  76
  77 #define AT_FDCWD                -100    /* Special value used to indicate
  78                                            openat should use the current
  79                                            working directory. */
  80 #define AT_SYMLINK_NOFOLLOW     0x100   /* Do not follow symbolic links.  */
  81 #define AT_REMOVEDIR            0x200   /* Remove directory instead of
  82                                            unlinking file.  */
  83 #define AT_SYMLINK_FOLLOW       0x400   /* Follow symbolic links.  */
  84 #define AT_NO_AUTOMOUNT         0x800   /* Suppress terminal automount traversal */
  85 #define AT_EMPTY_PATH           0x1000  /* Allow empty relative pathname */
  86
  87 #define AT_STATX_SYNC_TYPE      0x6000  /* Type of synchronisation required from statx() */
  88 #define AT_STATX_SYNC_AS_STAT   0x0000  /* - Do whatever stat() does */
  89 #define AT_STATX_FORCE_SYNC     0x2000  /* - Force the attributes to be sync'd with the server */
  90 #define AT_STATX_DONT_SYNC      0x4000  /* - Don't sync attributes with the server */
  91
  92
  93 #endif /* _UAPI_LINUX_FCNTL_H */