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
  14 typedef __le16 le16;
  15 typedef __le32 le32;
  16 typedef __le64 le64;
  17 typedef __u16 __bitwise sle16;
  18 typedef __u32 __bitwise sle32;
  19 typedef __u64 __bitwise sle64;
  20
  21 /* 2-byte Unicode character type. */
  22 typedef 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  */
  29 typedef s64 VCN;
  30 typedef sle64 leVCN;
  31 typedef s64 LCN;
  32 typedef 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  */
  39 typedef s64 LSN;
  40 typedef 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  */
  47 typedef s64 USN;
  48 typedef sle64 leUSN;
  49
  50 typedef enum {
  51         CASE_SENSITIVE = 0,
  52         IGNORE_CASE = 1,
  53 } IGNORE_CASE_BOOL;
  54
  55 #endif /* _LINUX_NTFS_TYPES_H */