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 */
70