LXR linux/fs/ntfs/types.h

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 * types.h - Defines for NTFS Linux kernel driver specific types.
   4 *           Part of the Linux-NTFS project.
   5 *
   6 * Copyright (c) 2001-2005 Anton Altaparmakov
   7 */
   8
   9#ifndef _LINUX_NTFS_TYPES_H
  10#define _LINUX_NTFS_TYPES_H
  11
  12#include <linux/types.h>
  13
  14typedef __le16 le16;
  15typedef __le32 le32;
  16typedef __le64 le64;
  17typedef __u16 __bitwise sle16;
  18typedef __u32 __bitwise sle32;
  19typedef __u64 __bitwise sle64;
  20
  21/* 2-byte Unicode character type. */
  22typedef le16 ntfschar;
  23#define UCHAR_T_SIZE_BITS 1
  24
  25/*
  26 * Clusters are signed 64-bit values on NTFS volumes. We define two types, LCN
  27 * and VCN, to allow for type checking and better code readability.
  28 */
  29typedef s64 VCN;
  30typedef sle64 leVCN;
  31typedef s64 LCN;
  32typedef sle64 leLCN;
  33
  34/*
  35 * The NTFS journal $LogFile uses log sequence numbers which are signed 64-bit
  36 * values.  We define our own type LSN, to allow for type checking and better
  37 * code readability.
  38 */
  39typedef s64 LSN;
  40typedef sle64 leLSN;
  41
  42/*
  43 * The NTFS transaction log $UsnJrnl uses usn which are signed 64-bit values.
  44 * We define our own type USN, to allow for type checking and better code
  45 * readability.
  46 */
  47typedef s64 USN;
  48typedef sle64 leUSN;
  49
  50typedef enum {
  51        CASE_SENSITIVE = 0,
  52        IGNORE_CASE = 1,
  53} IGNORE_CASE_BOOL;
  54
  55#endif /* _LINUX_NTFS_TYPES_H */
  56