Source code of Windows XP (NT5)
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/*++
Copyright (C) Microsoft Corporation, 1996 - 1998
Module Name:
ondisk.h
Abstract:
This header file defines the ondisk structures for storing FT
information on disk.
Author:
Norbert Kusters 15-July-1996
Notes:
Revision History:
--*/
#include <fttypes.h>
//
// Define an on disk signature so that we can recognize valid FT on disk
// structures.
//
#define FT_ON_DISK_SIGNATURE ((ULONG) 'TFTN')
#define FT_ON_DISK_DESCRIPTION_VERSION_NUMBER (1)
//
// Define the preamble for the on disk structures which contains the
// signature and a pointer to the first FT disk description.
//
typedef struct _FT_ON_DISK_PREAMBLE {
ULONG FtOnDiskSignature;
ULONG DiskDescriptionVersionNumber;
ULONG ByteOffsetToFirstFtLogicalDiskDescription;
ULONG ByteOffsetToReplaceLog;
} FT_ON_DISK_PREAMBLE, *PFT_ON_DISK_PREAMBLE;
//
// Define the FT logical disk description structure.
//
typedef struct _FT_LOGICAL_DISK_DESCRIPTION {
USHORT DiskDescriptionSize;
UCHAR DriveLetter;
UCHAR Reserved;
FT_LOGICAL_DISK_TYPE LogicalDiskType;
FT_LOGICAL_DISK_ID LogicalDiskId;
union {
struct {
LONGLONG ByteOffset;
LONGLONG PartitionSize; // 0 indicates full size.
} FtPartition;
struct {
FT_LOGICAL_DISK_ID ThisMemberLogicalDiskId;
USHORT ThisMemberNumber;
USHORT NumberOfMembers;
USHORT ByteOffsetToConfigurationInformation;
USHORT ByteOffsetToStateInformation;
} Other;
} u;
} FT_LOGICAL_DISK_DESCRIPTION, *PFT_LOGICAL_DISK_DESCRIPTION;