LXR linux/fs/ntfs/types.h

   1/*
   2 * types.h - Defines for NTFS Linux kernel driver specific types.
   3 *           Part of the Linux-NTFS project.
   4 *
   5 * Copyright (c) 2001-2005 Anton Altaparmakov
   6 *
   7 * This program/include file is free software; you can redistribute it and/or
   8 * modify it under the terms of the GNU General Public License as published
   9 * by the Free Software Foundation; either version 2 of the License, or
  10 * (at your option) any later version.
  11 *
  12 * This program/include file is distributed in the hope that it will be
  13 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
  14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with this program (in the main directory of the Linux-NTFS
  19 * distribution in the file COPYING); if not, write to the Free Software
  20 * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21 */
  22
  23#ifndef _LINUX_NTFS_TYPES_H
  24#define _LINUX_NTFS_TYPES_H
  25
  26#include <linux/types.h>
  27
  28typedef __le16 le16;
  29typedef __le32 le32;
  30typedef __le64 le64;
  31typedef __u16 __bitwise sle16;
  32typedef __u32 __bitwise sle32;
  33typedef __u64 __bitwise sle64;
  34
  35/* 2-byte Unicode character type. */
  36typedef le16 ntfschar;
  37#define UCHAR_T_SIZE_BITS 1
  38
  39/*
  40 * Clusters are signed 64-bit values on NTFS volumes. We define two types, LCN
  41 * and VCN, to allow for type checking and better code readability.
  42 */
  43typedef s64 VCN;
  44typedef sle64 leVCN;
  45typedef s64 LCN;
  46typedef sle64 leLCN;
  47
  48/*
  49 * The NTFS journal $LogFile uses log sequence numbers which are signed 64-bit
  50 * values.  We define our own type LSN, to allow for type checking and better
  51 * code readability.
  52 */
  53typedef s64 LSN;
  54typedef sle64 leLSN;
  55
  56/*
  57 * The NTFS transaction log $UsnJrnl uses usn which are signed 64-bit values.
  58 * We define our own type USN, to allow for type checking and better code
  59 * readability.
  60 */
  61typedef s64 USN;
  62typedef sle64 leUSN;
  63
  64typedef enum {
  65        CASE_SENSITIVE = 0,
  66        IGNORE_CASE = 1,
  67} IGNORE_CASE_BOOL;
  68
  69#endif /* _LINUX_NTFS_TYPES_H */
  70