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