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
  28 typedef __le16 le16;
  29 typedef __le32 le32;
  30 typedef __le64 le64;
  31 typedef __u16 __bitwise sle16;
  32 typedef __u32 __bitwise sle32;
  33 typedef __u64 __bitwise sle64;
  34
  35 /* 2-byte Unicode character type. */
  36 typedef 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  */
  43 typedef s64 VCN;
  44 typedef sle64 leVCN;
  45 typedef s64 LCN;
  46 typedef 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  */
  53 typedef s64 LSN;
  54 typedef 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  */
  61 typedef s64 USN;
  62 typedef sle64 leUSN;
  63
  64 typedef enum {
  65         CASE_SENSITIVE = 0,
  66         IGNORE_CASE = 1,
  67 } IGNORE_CASE_BOOL;
  68
  69 #endif /* _LINUX_NTFS_TYPES_H */