1000 lines
17 KiB
C++
1000 lines
17 KiB
C++
/*++
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Copyright (c) 1991 Microsoft Corporation
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Module Name:
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frsstruc.hxx
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Abstract:
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This class models a file record segment structure.
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Author:
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Norbert P. Kusters (norbertk) 17-Sep-91
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Environment:
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ULIB, User Mode
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--*/
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#if !defined( _NTFS_FRS_STRUCTURE_DEFN_ )
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#define _NTFS_FRS_STRUCTURE_DEFN_
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#include "volume.hxx"
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#include "ntfssa.hxx"
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#include "tlink.hxx"
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DECLARE_CLASS( NTFS_FRS_STRUCTURE );
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DECLARE_CLASS( MEM );
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DECLARE_CLASS( NTFS_ATTRIBUTE );
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DECLARE_CLASS( LOG_IO_DP_DRIVE );
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DECLARE_CLASS( NTFS_CLUSTER_RUN );
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DECLARE_CLASS( WSTRING );
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DECLARE_CLASS( MESSAGE );
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DECLARE_CLASS( NTFS_ATTRIBUTE_COLUMNS );
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DECLARE_CLASS( NTFS_ATTRIBUTE_LIST );
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DECLARE_CLASS( NTFS_BITMAP );
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DECLARE_CLASS( NTFS_UPCASE_TABLE );
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class NTFS_FRS_STRUCTURE : public OBJECT {
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public:
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UNTFS_EXPORT
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DECLARE_CONSTRUCTOR( NTFS_FRS_STRUCTURE );
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VIRTUAL
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UNTFS_EXPORT
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~NTFS_FRS_STRUCTURE(
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);
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NONVIRTUAL
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UNTFS_EXPORT
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BOOLEAN
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Initialize(
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IN OUT PMEM Mem,
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IN OUT PNTFS_ATTRIBUTE MftData,
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IN VCN FileNumber,
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IN ULONG ClusterFactor,
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IN BIG_INT VolumeSectors,
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IN ULONG FrsSize,
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IN PNTFS_UPCASE_TABLE UpcaseTable OPTIONAL
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);
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UNTFS_EXPORT
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BOOLEAN
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Initialize(
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IN OUT PMEM Mem,
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IN OUT PNTFS_ATTRIBUTE MftData,
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IN VCN FirstFileNumber,
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IN ULONG FrsCount,
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IN ULONG ClusterFactor,
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IN BIG_INT VolumeSectors,
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IN ULONG FrsSize,
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IN PNTFS_UPCASE_TABLE UpcaseTable
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);
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NONVIRTUAL
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UNTFS_EXPORT
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BOOLEAN
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Initialize(
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IN OUT PMEM Mem,
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IN OUT PLOG_IO_DP_DRIVE Drive,
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IN LCN StartOfMft,
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IN ULONG ClusterFactor,
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IN BIG_INT VolumeSectors,
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IN ULONG FrsSize,
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IN PNTFS_UPCASE_TABLE UpcaseTable DEFAULT NULL,
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IN ULONG Offset DEFAULT 0
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);
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NONVIRTUAL
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BOOLEAN
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VerifyAndFix(
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IN FIX_LEVEL FixLevel,
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IN OUT PMESSAGE Message,
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IN PCNTFS_ATTRIBUTE_COLUMNS AttributeDefTable OPTIONAL,
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IN OUT PBOOLEAN DiskErrorsFound DEFAULT NULL
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);
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#if defined(LOCATE_DELETED_FILE)
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NONVIRTUAL
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BOOLEAN
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LocateUnuseFrs(
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IN FIX_LEVEL FixLevel,
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IN OUT PMESSAGE Message,
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IN PCNTFS_ATTRIBUTE_COLUMNS AttributeDefTable OPTIONAL,
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IN OUT PBOOLEAN DiskErrorsFound DEFAULT NULL
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);
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#endif
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NONVIRTUAL
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BOOLEAN
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LoneFrsAllocationCheck(
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IN OUT PNTFS_BITMAP VolumeBitmap,
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IN OUT PNTFS_CHKDSK_REPORT ChkdskReport,
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IN OUT PNTFS_CHKDSK_INFO ChkdskInfo,
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IN FIX_LEVEL FixLevel,
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IN OUT PMESSAGE Message,
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IN OUT PBOOLEAN DiskErrorsFound DEFAULT NULL
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);
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NONVIRTUAL
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BOOLEAN
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CheckInstanceTags(
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IN FIX_LEVEL FixLevel,
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IN BOOLEAN Verbose,
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IN OUT PMESSAGE Message,
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OUT PBOOLEAN Changes,
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IN OUT PNTFS_ATTRIBUTE_LIST AttributeList DEFAULT NULL
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);
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VIRTUAL
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UNTFS_EXPORT
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BOOLEAN
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Read(
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);
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UNTFS_EXPORT
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BOOLEAN
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ReadNext(
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IN VCN FileNumber
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);
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UNTFS_EXPORT
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BOOLEAN
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ReadAgain(
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IN VCN FileNumber
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);
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UNTFS_EXPORT
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BOOLEAN
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ReadSet(
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IN OUT PTLINK Link
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);
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NONVIRTUAL
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UNTFS_EXPORT
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BOOLEAN
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Write(
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);
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NONVIRTUAL
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UNTFS_EXPORT
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PVOID
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GetNextAttributeRecord(
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IN PCVOID AttributeRecord,
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IN OUT PMESSAGE Message DEFAULT NULL,
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OUT PBOOLEAN ErrorsFound DEFAULT NULL
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);
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NONVIRTUAL
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VOID
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DeleteAttributeRecord(
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IN OUT PVOID AttributeRecord
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);
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NONVIRTUAL
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BOOLEAN
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InsertAttributeRecord(
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IN OUT PVOID Position,
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IN PCVOID AttributeRecord
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);
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NONVIRTUAL
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UNTFS_EXPORT
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BOOLEAN
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QueryAttributeList(
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OUT PNTFS_ATTRIBUTE_LIST AttributeList
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);
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NONVIRTUAL
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PVOID
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GetAttribute(
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IN ULONG TypeCode
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);
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NONVIRTUAL
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PVOID
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GetAttributeList(
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);
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NONVIRTUAL
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BOOLEAN
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UpdateAttributeList(
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IN PCNTFS_ATTRIBUTE_LIST AttributeList,
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IN BOOLEAN WriteList
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);
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NONVIRTUAL
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UNTFS_EXPORT
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BOOLEAN
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SafeQueryAttribute(
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IN ATTRIBUTE_TYPE_CODE TypeCode,
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IN OUT PNTFS_ATTRIBUTE MftData,
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OUT PNTFS_ATTRIBUTE Attribute
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);
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NONVIRTUAL
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MFT_SEGMENT_REFERENCE
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QuerySegmentReference(
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) CONST;
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NONVIRTUAL
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FILE_REFERENCE
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QueryBaseFileRecordSegment(
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) CONST;
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NONVIRTUAL
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BOOLEAN
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IsBase(
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) CONST;
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NONVIRTUAL
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BOOLEAN
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IsInUse(
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) CONST;
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NONVIRTUAL
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VOID
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ClearInUse(
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);
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NONVIRTUAL
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BOOLEAN
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IsSystemFile(
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) CONST;
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NONVIRTUAL
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VOID
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SetSystemFile(
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);
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NONVIRTUAL
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BOOLEAN
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IsViewIndexPresent(
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) CONST;
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NONVIRTUAL
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VOID
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SetViewIndexPresent(
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);
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NONVIRTUAL
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VOID
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ClearViewIndexPresent(
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);
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NONVIRTUAL
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BOOLEAN
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IsIndexPresent(
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) CONST;
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NONVIRTUAL
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VOID
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SetIndexPresent(
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);
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NONVIRTUAL
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VOID
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ClearIndexPresent(
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);
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NONVIRTUAL
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VCN
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QueryFileNumber(
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) CONST;
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NONVIRTUAL
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ULONG
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QueryClusterFactor(
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) CONST;
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NONVIRTUAL
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ULONG
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QuerySize(
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) CONST;
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NONVIRTUAL
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PLOG_IO_DP_DRIVE
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GetDrive(
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);
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NONVIRTUAL
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VOID
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SetFrsData(
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IN VCN FileNumber,
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IN PFILE_RECORD_SEGMENT_HEADER frsdata
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);
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NONVIRTUAL
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USHORT
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QueryReferenceCount(
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) CONST;
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NONVIRTUAL
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VOID
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SetReferenceCount(
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IN USHORT ReferenceCount
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);
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NONVIRTUAL
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BIG_INT
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QueryVolumeSectors(
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) CONST;
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NONVIRTUAL
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PNTFS_UPCASE_TABLE
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GetUpcaseTable(
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);
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NONVIRTUAL
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VOID
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SetUpcaseTable(
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IN PNTFS_UPCASE_TABLE UpcaseTable
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);
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NONVIRTUAL
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LSN
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QueryLsn(
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) CONST;
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protected:
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NONVIRTUAL
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ULONG
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QueryAvailableSpace(
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);
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PFILE_RECORD_SEGMENT_HEADER _FrsData;
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private:
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NONVIRTUAL
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BOOLEAN
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Sort(
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OUT PBOOLEAN Changes,
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OUT PBOOLEAN Duplicates
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);
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NONVIRTUAL
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VOID
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Construct(
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);
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NONVIRTUAL
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VOID
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Destroy(
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);
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PSECRUN _secrun;
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PNTFS_ATTRIBUTE _mftdata;
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PNTFS_UPCASE_TABLE _upcase_table;
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VCN _file_number;
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VCN _first_file_number;
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ULONG _frs_count;
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BOOLEAN _frs_state;
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BOOLEAN _read_status;
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ULONG _cluster_factor;
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ULONG _size;
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PLOG_IO_DP_DRIVE _drive;
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BIG_INT _volume_sectors;
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UCHAR _usa_check;
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};
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INLINE
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MFT_SEGMENT_REFERENCE
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NTFS_FRS_STRUCTURE::QuerySegmentReference(
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) CONST
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/*++
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Routine Description:
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This routine computes the segment reference value for this FRS.
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Arguments:
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None.
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Return Value:
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The segment reference value for this FRS.
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--*/
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{
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MFT_SEGMENT_REFERENCE SegmentReference;
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DebugAssert( _FrsData );
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SegmentReference.LowPart = _file_number.GetLowPart();
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SegmentReference.HighPart = (USHORT) _file_number.GetHighPart();
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SegmentReference.SequenceNumber = _FrsData->SequenceNumber;
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return SegmentReference;
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}
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INLINE
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FILE_REFERENCE
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NTFS_FRS_STRUCTURE::QueryBaseFileRecordSegment(
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) CONST
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/*++
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Routine Description:
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This field contains a pointer to the base file record segment for
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this file record segment.
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Arguments:
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None.
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Return Value:
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A FILE_REFERENCE to the base file record segment for this file
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record segment.
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--*/
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{
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DebugAssert( _FrsData );
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return _FrsData->BaseFileRecordSegment;
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}
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INLINE
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BOOLEAN
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NTFS_FRS_STRUCTURE::IsBase(
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) CONST
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/*++
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Routine Description:
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This method determines whether this File Record Segment is the
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Base File Record Segment for its file.
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Arguments:
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None.
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Return Value:
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TRUE if this is a Base File Record Segment; FALSE otherwise.
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--*/
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{
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return( _FrsData->BaseFileRecordSegment.LowPart == 0 &&
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_FrsData->BaseFileRecordSegment.HighPart == 0 &&
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_FrsData->BaseFileRecordSegment.SequenceNumber == 0 );
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}
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INLINE
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BOOLEAN
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NTFS_FRS_STRUCTURE::IsInUse(
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) CONST
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/*++
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Routine Description:
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This routine computes whether or not this file record segment is in
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use.
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Arguments:
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None.
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Return Value:
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FALSE - This file record segment is not in use.
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TRUE - This file record segment is in use.
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--*/
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{
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DebugAssert( _FrsData );
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return (_FrsData->Flags & FILE_RECORD_SEGMENT_IN_USE) ? TRUE : FALSE;
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}
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INLINE
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VOID
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NTFS_FRS_STRUCTURE::ClearInUse(
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)
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/*++
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Routine Description:
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This routine clears the in use bit on this file record segment.
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Arguments:
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None.
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Return Value:
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None.
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--*/
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{
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DebugAssert( _FrsData );
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_FrsData->Flags &= ~FILE_RECORD_SEGMENT_IN_USE;
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}
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INLINE
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BOOLEAN
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NTFS_FRS_STRUCTURE::IsSystemFile(
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) CONST
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/*++
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Routine Description:
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This routine computes whether or not this file record segment is a
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system file.
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Arguments:
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None.
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Return Value:
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FALSE - This file record segment is not a system file.
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TRUE - This file record segment is a system file.
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--*/
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{
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DebugAssert( _FrsData );
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return (_FrsData->Flags & FILE_SYSTEM_FILE) ? TRUE : FALSE;
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}
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INLINE
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VOID
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NTFS_FRS_STRUCTURE::SetSystemFile(
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)
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/*++
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Routine Description:
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This routine sets the system file bit on this file record segment.
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Arguments:
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None.
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Return Value:
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None.
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--*/
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{
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DebugAssert( _FrsData );
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_FrsData->Flags |= FILE_SYSTEM_FILE;
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}
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INLINE
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BOOLEAN
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NTFS_FRS_STRUCTURE::IsViewIndexPresent(
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) CONST
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/*++
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Routine Description:
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This routine computes whether or not the indices of file record segment
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can be viewed.
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Arguments:
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None.
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Return Value:
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FALSE - The indices of this file record segment cannot be viewed.
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TRUE - The indices of this file record segment can be viewed.
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--*/
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{
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DebugAssert( _FrsData );
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return (_FrsData->Flags & FILE_VIEW_INDEX_PRESENT) ? TRUE : FALSE;
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}
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INLINE
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VOID
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NTFS_FRS_STRUCTURE::SetViewIndexPresent(
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)
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/*++
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Routine Description:
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This routine sets the view index present bit on this file record segment.
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Arguments:
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None.
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Return Value:
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None.
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--*/
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{
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DebugAssert( _FrsData );
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_FrsData->Flags |= FILE_VIEW_INDEX_PRESENT;
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}
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INLINE
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VOID
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NTFS_FRS_STRUCTURE::ClearViewIndexPresent(
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)
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/*++
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Routine Description:
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This routine clears the view index present bit on this file record segment.
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Arguments:
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None.
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Return Value:
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None.
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--*/
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{
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DebugAssert( _FrsData );
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_FrsData->Flags &= ~FILE_VIEW_INDEX_PRESENT;
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}
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INLINE
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BOOLEAN
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NTFS_FRS_STRUCTURE::IsIndexPresent(
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) CONST
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/*++
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Routine Description:
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This routine computes whether or not this file record segment's
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FILE_NAME_INDEX_PRESENT flag is set.
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Arguments:
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None.
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Return Value:
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FALSE - This file record segment's FILE_NAME_INDEX_PRESENT is NOT set.
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TRUE - This file record segment's FILE_NAME_INDEX_PRESENT is set.
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--*/
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{
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DebugAssert( _FrsData );
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return (_FrsData->Flags & FILE_FILE_NAME_INDEX_PRESENT) ? TRUE : FALSE;
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}
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INLINE
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VOID
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NTFS_FRS_STRUCTURE::ClearIndexPresent(
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)
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/*++
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Routine Description:
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This routine clears the index present bit on this file record segment.
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Arguments:
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None.
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|
|
Return Value:
|
|
|
|
None.
|
|
|
|
--*/
|
|
{
|
|
DebugAssert( _FrsData );
|
|
|
|
_FrsData->Flags &= ~FILE_FILE_NAME_INDEX_PRESENT;
|
|
}
|
|
|
|
|
|
INLINE
|
|
VOID
|
|
NTFS_FRS_STRUCTURE::SetIndexPresent(
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine sets the index present bit on this file record segment.
|
|
|
|
Arguments:
|
|
|
|
None.
|
|
|
|
Return Value:
|
|
|
|
None.
|
|
|
|
--*/
|
|
{
|
|
DebugAssert( _FrsData );
|
|
|
|
_FrsData->Flags |= FILE_FILE_NAME_INDEX_PRESENT;
|
|
}
|
|
|
|
|
|
INLINE
|
|
ULONG
|
|
NTFS_FRS_STRUCTURE::QuerySize(
|
|
) CONST
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine computes the number of bytes in this file
|
|
record segment.
|
|
|
|
Arguments:
|
|
|
|
None.
|
|
|
|
Return Value:
|
|
|
|
The number of bytes in this file record segment.
|
|
|
|
--*/
|
|
{
|
|
return _size;
|
|
}
|
|
|
|
|
|
INLINE
|
|
VCN
|
|
NTFS_FRS_STRUCTURE::QueryFileNumber(
|
|
) CONST
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This method returns the File Number of the File Record Segment.
|
|
|
|
Arguments:
|
|
|
|
None.
|
|
|
|
Return Value:
|
|
|
|
the File Number (i.e. ordinal number within the MFT) of this
|
|
File Record Segment.
|
|
|
|
--*/
|
|
{
|
|
return _file_number;
|
|
}
|
|
|
|
|
|
INLINE
|
|
ULONG
|
|
NTFS_FRS_STRUCTURE::QueryClusterFactor(
|
|
) CONST
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This method returns the cluster factor.
|
|
|
|
Arguments:
|
|
|
|
None.
|
|
|
|
Return Value:
|
|
|
|
The cluster factor with which this File Record Segment was initialized.
|
|
|
|
--*/
|
|
{
|
|
return _cluster_factor;
|
|
}
|
|
|
|
INLINE
|
|
PLOG_IO_DP_DRIVE
|
|
NTFS_FRS_STRUCTURE::GetDrive(
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This method returns the drive on which the File Record Segment
|
|
resides. This functionality enables clients to initialize
|
|
other File Record Segments on the same drive.
|
|
|
|
Arguments:
|
|
|
|
None.
|
|
|
|
Return Value:
|
|
|
|
The drive on which the File Record Segment resides.
|
|
|
|
--*/
|
|
{
|
|
return _drive;
|
|
}
|
|
|
|
|
|
INLINE
|
|
USHORT
|
|
NTFS_FRS_STRUCTURE::QueryReferenceCount(
|
|
) CONST
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine returns the value of the reference count field
|
|
in this frs.
|
|
|
|
Arguments:
|
|
|
|
None.
|
|
|
|
Return Value:
|
|
|
|
The value of the reference count field in this frs.
|
|
|
|
--*/
|
|
{
|
|
return _FrsData->ReferenceCount;
|
|
}
|
|
|
|
|
|
INLINE
|
|
VOID
|
|
NTFS_FRS_STRUCTURE::SetReferenceCount(
|
|
IN USHORT ReferenceCount
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine sets the value of the reference count field
|
|
in this frs.
|
|
|
|
Arguments:
|
|
|
|
ReferenceCount - Supplies the new reference count.
|
|
|
|
Return Value:
|
|
|
|
None.
|
|
|
|
--*/
|
|
{
|
|
_FrsData->ReferenceCount = ReferenceCount;
|
|
}
|
|
|
|
|
|
INLINE
|
|
BIG_INT
|
|
NTFS_FRS_STRUCTURE::QueryVolumeSectors(
|
|
) CONST
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine returns the number of sectors on the volume as recorded in
|
|
the boot sector.
|
|
|
|
Arguments:
|
|
|
|
None.
|
|
|
|
Return Value:
|
|
|
|
The number of volume sectors.
|
|
|
|
--*/
|
|
{
|
|
return _volume_sectors;
|
|
}
|
|
|
|
|
|
INLINE
|
|
PNTFS_UPCASE_TABLE
|
|
NTFS_FRS_STRUCTURE::GetUpcaseTable(
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This method fetches the upcase table for the volume on which
|
|
this FRS resides.
|
|
|
|
Arguments:
|
|
|
|
None.
|
|
|
|
Return Value:
|
|
|
|
The volume upcase table.
|
|
|
|
--*/
|
|
{
|
|
return _upcase_table;
|
|
}
|
|
|
|
INLINE
|
|
VOID
|
|
NTFS_FRS_STRUCTURE::SetUpcaseTable(
|
|
IN PNTFS_UPCASE_TABLE UpcaseTable
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This method sets the upcase table for the volume on which
|
|
this FRS resides.
|
|
|
|
Arguments:
|
|
|
|
UpcaseTable -- Supplies the volume upcase table.
|
|
|
|
Return Value:
|
|
|
|
None.
|
|
|
|
--*/
|
|
{
|
|
_upcase_table = UpcaseTable;
|
|
}
|
|
|
|
|
|
INLINE
|
|
LSN
|
|
NTFS_FRS_STRUCTURE::QueryLsn(
|
|
) CONST
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine returns the logical sequence number for this file
|
|
record segment.
|
|
|
|
Arguments:
|
|
|
|
None.
|
|
|
|
Return Value:
|
|
|
|
The logical sequence number for this file record segment.
|
|
|
|
--*/
|
|
{
|
|
DebugAssert( _FrsData );
|
|
|
|
return _FrsData->Lsn;
|
|
}
|
|
|
|
|
|
#endif // _NTFS_FRS_STRUCTURE_DEFN_
|