public override AttributeRecord Clone() { ResidentAttributeRecord clone = (ResidentAttributeRecord)this.MemberwiseClone(); clone.Data = (byte[])this.Data.Clone(); return(clone); }
public static AttributeRecord Create(AttributeType type, string name, bool isResident) { if (isResident) { return(ResidentAttributeRecord.Create(type, name)); } else { return(NonResidentAttributeRecord.Create(type, name)); } }
public void UpdateFileRecord(FileRecord fileRecord) { AttributeRecord oldAttributeList = fileRecord.BaseSegment.GetImmediateAttributeRecord(AttributeType.AttributeList, String.Empty); fileRecord.UpdateSegments(m_volume.BytesPerFileRecordSegment, m_volume.MinorVersion); FileRecordSegment baseSegment = fileRecord.BaseSegment; for (int segmentIndex = 1; segmentIndex < fileRecord.Segments.Count; segmentIndex++) { FileRecordSegment segment = fileRecord.Segments[segmentIndex]; if (segment.SegmentReference == MftSegmentReference.NullReference) { // New segment, we must allocate space for it MftSegmentReference segmentReference; if (baseSegment.SegmentNumber == MasterFileTable.MasterFileTableSegmentNumber) { segmentReference = AllocateReservedFileRecordSegment(); } else { segmentReference = AllocateFileRecordSegment(); } FileRecordSegment newSegment = new FileRecordSegment(segmentReference.SegmentNumber, segmentReference.SequenceNumber, baseSegment.SegmentReference); newSegment.IsInUse = true; newSegment.IsDirectory = fileRecord.IsDirectory; newSegment.NextAttributeInstance = segment.NextAttributeInstance; newSegment.ImmediateAttributes.AddRange(segment.ImmediateAttributes); fileRecord.Segments[segmentIndex] = newSegment; } else if (segment.ImmediateAttributes.Count == 0) { DeallocateFileRecordSegment(segment); fileRecord.Segments.RemoveAt(segmentIndex); segmentIndex--; } } foreach (FileRecordSegment segment in fileRecord.Segments) { UpdateFileRecordSegment(segment); } if (oldAttributeList is NonResidentAttributeRecord) { new NonResidentAttributeData(m_volume, null, (NonResidentAttributeRecord)oldAttributeList).Truncate(0); } bool needsAttributeList = (fileRecord.Segments.Count > 1); if (needsAttributeList) { List <AttributeListEntry> entries = FileRecordHelper.BuildAttributeList(fileRecord.Segments, m_volume.BytesPerFileRecordSegment, m_volume.MinorVersion); int dataLength = AttributeList.GetLength(entries); int attributeListRecordLength = ResidentAttributeRecord.GetRecordLength(0, dataLength); int numberOfBytesFreeInBaseSegment = baseSegment.GetNumberOfBytesFree(m_volume.BytesPerFileRecordSegment, m_volume.MinorVersion); bool isResident = (attributeListRecordLength <= numberOfBytesFreeInBaseSegment); AttributeRecord attributeListRecord = baseSegment.CreateAttributeListRecord(isResident); AttributeList attributeList = new AttributeList(m_volume, attributeListRecord); attributeList.WriteEntries(entries); UpdateFileRecordSegment(baseSegment); } }
public static NTFSVolume Format(Volume volume, byte majorNTFSVersion, byte minorNTFSVersion, int bytesPerCluster, string volumeLabel) { if (volumeLabel.Length > VolumeNameRecord.MaxVolumeNameLength) { throw new InvalidNameException(); } if (bytesPerCluster % volume.BytesPerSector > 0) { throw new ArgumentException("bytesPerCluster must be a multiple of volume.BytesPerSector"); } if (majorNTFSVersion != 3 || (minorNTFSVersion != 0 && minorNTFSVersion != 1)) { throw new NotSupportedException(); } long volumeClusterCount = (volume.Size - NTFSBootRecord.Length) / bytesPerCluster; // We wish to make WriteVolumeBitmap() as simple as possible so we use a multiple of ExtendGranularity to avoid having to set bits at the end of the bitmap volumeClusterCount = (long)Math.Floor((double)volumeClusterCount / (VolumeBitmap.ExtendGranularity * 8)) * (VolumeBitmap.ExtendGranularity * 8); int sectorsPerCluster = bytesPerCluster / volume.BytesPerSector; int bytesPerFileRecordSegment = 1024; // Supported values are 1024 or 4096 (when formatted with /L) int bytesPerIndexRecord = 4096; // Legal values are 1024, 2048 or 4096. NTFS v5.1 driver will always use 4096. int bootSegmentFileSize = 8192; int bootSegmentAllocatedLength = (int)Math.Ceiling((double)bootSegmentFileSize / bytesPerCluster) * bytesPerCluster; FileNameRecord bootFileNameRecord = new FileNameRecord(MasterFileTable.RootDirSegmentReference, "$Boot", false, DateTime.Now); bootFileNameRecord.AllocatedLength = (ulong)bootSegmentAllocatedLength; bootFileNameRecord.FileSize = (ulong)bootSegmentFileSize; bootFileNameRecord.FileAttributes = FileAttributes.Hidden | FileAttributes.System; FileRecordSegment bootSegment = CreateBaseRecordSegment(MasterFileTable.BootSegmentNumber, (ushort)MasterFileTable.BootSegmentNumber, bootFileNameRecord); bootSegment.ReferenceCount = 1; NonResidentAttributeRecord bootDataRecord = (NonResidentAttributeRecord)bootSegment.CreateAttributeRecord(AttributeType.Data, String.Empty, false); bootDataRecord.AllocatedLength = (ulong)bootSegmentAllocatedLength; bootDataRecord.FileSize = (ulong)bootSegmentFileSize; bootDataRecord.ValidDataLength = (ulong)bootSegmentFileSize; int bootDataClusterCount = (int)Math.Ceiling((double)8192 / bytesPerCluster); long bootDataStartLCN = 0; bootDataRecord.DataRunSequence.Add(new DataRun(bootDataClusterCount, bootDataStartLCN)); bootDataRecord.HighestVCN = bootDataClusterCount - 1; long volumeBitmapFileSize = (long)Math.Ceiling((double)volumeClusterCount / (VolumeBitmap.ExtendGranularity * 8)) * VolumeBitmap.ExtendGranularity; long numberOfVolumeBitmapClusters = (long)Math.Ceiling((double)volumeBitmapFileSize / bytesPerCluster); long volumeBitmapAllocatedLength = numberOfVolumeBitmapClusters * bytesPerCluster; FileNameRecord volumeBitmapFileNameRecord = new FileNameRecord(MasterFileTable.RootDirSegmentReference, "$Bitmap", false, DateTime.Now); volumeBitmapFileNameRecord.AllocatedLength = (ulong)volumeBitmapAllocatedLength; volumeBitmapFileNameRecord.FileSize = (ulong)volumeBitmapFileSize; volumeBitmapFileNameRecord.FileAttributes = FileAttributes.Hidden | FileAttributes.System; FileRecordSegment volumeBitmapSegment = CreateBaseRecordSegment(MasterFileTable.BitmapSegmentNumber, (ushort)MasterFileTable.BitmapSegmentNumber, volumeBitmapFileNameRecord); volumeBitmapSegment.ReferenceCount = 1; NonResidentAttributeRecord volumeBitmapDataRecord = (NonResidentAttributeRecord)volumeBitmapSegment.CreateAttributeRecord(AttributeType.Data, String.Empty, false); long volumeBitmapStartLCN = bootDataClusterCount; volumeBitmapDataRecord.AllocatedLength = (ulong)volumeBitmapAllocatedLength; volumeBitmapDataRecord.FileSize = (ulong)volumeBitmapFileSize; volumeBitmapDataRecord.ValidDataLength = (ulong)volumeBitmapFileSize; volumeBitmapDataRecord.DataRunSequence.Add(new DataRun(numberOfVolumeBitmapClusters, volumeBitmapStartLCN)); volumeBitmapDataRecord.HighestVCN = numberOfVolumeBitmapClusters - 1; int numberOfMftRecords = 64; int mftDataLength = numberOfMftRecords * bytesPerFileRecordSegment; FileNameRecord mftFileNameRecord = new FileNameRecord(MasterFileTable.RootDirSegmentReference, "$MFT", false, DateTime.Now); mftFileNameRecord.AllocatedLength = (ulong)mftDataLength; mftFileNameRecord.FileSize = (ulong)mftDataLength; mftFileNameRecord.FileAttributes = FileAttributes.Hidden | FileAttributes.System; FileRecordSegment mftSegment = CreateBaseRecordSegment(MasterFileTable.MasterFileTableSegmentNumber, 1, mftFileNameRecord); mftSegment.ReferenceCount = 1; NonResidentAttributeRecord mftDataRecord = (NonResidentAttributeRecord)mftSegment.CreateAttributeRecord(AttributeType.Data, String.Empty, false); mftDataRecord.AllocatedLength = (ulong)mftDataLength; mftDataRecord.FileSize = (ulong)mftDataLength; mftDataRecord.ValidDataLength = (ulong)mftDataLength; int mftDataClusterCount = (int)Math.Ceiling((double)mftDataLength / bytesPerCluster); long mftDataStartLCN = volumeBitmapStartLCN + numberOfVolumeBitmapClusters; mftDataRecord.DataRunSequence.Add(new DataRun(mftDataClusterCount, mftDataStartLCN)); mftDataRecord.HighestVCN = mftDataClusterCount - 1; NonResidentAttributeRecord mftBitmapRecord = (NonResidentAttributeRecord)mftSegment.CreateAttributeRecord(AttributeType.Bitmap, String.Empty, false); int mftBitmapLength = (int)Math.Ceiling((double)numberOfMftRecords / (BitmapData.ExtendGranularity * 8)) * BitmapData.ExtendGranularity; int mftBitmapClusterCount = (int)Math.Ceiling((double)mftBitmapLength / bytesPerCluster); mftBitmapRecord.AllocatedLength = (ulong)(mftBitmapClusterCount * bytesPerCluster); mftBitmapRecord.FileSize = (ulong)mftBitmapLength; mftBitmapRecord.ValidDataLength = (ulong)mftBitmapLength; long mftBitmapStartLCN = mftDataStartLCN + mftDataClusterCount; mftBitmapRecord.DataRunSequence.Add(new DataRun(mftBitmapClusterCount, mftBitmapStartLCN)); mftBitmapRecord.HighestVCN = 0; int bytesPerLogPage = 4096; int logFileDataLength = 512 * bytesPerLogPage; FileNameRecord logFileNameRecord = new FileNameRecord(MasterFileTable.RootDirSegmentReference, "$LogFile", false, DateTime.Now); logFileNameRecord.AllocatedLength = (ulong)logFileDataLength; logFileNameRecord.FileSize = (ulong)logFileDataLength; logFileNameRecord.FileAttributes = FileAttributes.Hidden | FileAttributes.System; FileRecordSegment logFileSegment = CreateBaseRecordSegment(MasterFileTable.LogFileSegmentNumber, (ushort)MasterFileTable.LogFileSegmentNumber, logFileNameRecord); logFileSegment.ReferenceCount = 1; NonResidentAttributeRecord logFileDataRecord = (NonResidentAttributeRecord)logFileSegment.CreateAttributeRecord(AttributeType.Data, String.Empty, false); logFileDataRecord.AllocatedLength = (ulong)logFileDataLength; logFileDataRecord.FileSize = (ulong)logFileDataLength; logFileDataRecord.ValidDataLength = (ulong)logFileDataLength; int logFileClusterCount = (int)Math.Ceiling((double)logFileDataLength / bytesPerCluster); long logFileStartLCN = mftBitmapStartLCN + mftBitmapClusterCount; logFileDataRecord.DataRunSequence.Add(new DataRun(logFileClusterCount, logFileStartLCN)); logFileDataRecord.HighestVCN = logFileClusterCount - 1; FileNameRecord volumeFileNameRecord = new FileNameRecord(MasterFileTable.RootDirSegmentReference, "$Volume", false, DateTime.Now); volumeFileNameRecord.FileAttributes = FileAttributes.Hidden | FileAttributes.System; FileRecordSegment volumeSegment = CreateBaseRecordSegment(MasterFileTable.VolumeSegmentNumber, (ushort)MasterFileTable.VolumeSegmentNumber, volumeFileNameRecord); volumeSegment.ReferenceCount = 1; VolumeNameRecord volumeName = (VolumeNameRecord)volumeSegment.CreateAttributeRecord(AttributeType.VolumeName, String.Empty); volumeName.VolumeName = volumeLabel; VolumeInformationRecord volumeInformation = (VolumeInformationRecord)volumeSegment.CreateAttributeRecord(AttributeType.VolumeInformation, String.Empty); volumeInformation.MajorVersion = majorNTFSVersion; volumeInformation.MinorVersion = minorNTFSVersion; volumeSegment.CreateAttributeRecord(AttributeType.Data, String.Empty); long logFileDataStartSector = logFileStartLCN * sectorsPerCluster; WriteLogFile(volume, logFileDataStartSector, logFileDataLength, bytesPerLogPage); long attributeDefinitionStartLCN = logFileStartLCN + logFileClusterCount; long attributeDefinitionStartSector = attributeDefinitionStartLCN * sectorsPerCluster; int attributeDefinitionLength = WriteAttributeDefinition(volume, attributeDefinitionStartSector, bytesPerCluster); int attributeDefinitionClusterCount = (int)Math.Ceiling((double)attributeDefinitionLength / bytesPerCluster); int attributeDefinitionAllocatedLength = attributeDefinitionClusterCount * bytesPerCluster; FileNameRecord attributeDefinitionFileNameRecord = new FileNameRecord(MasterFileTable.RootDirSegmentReference, "$AttrDef", false, DateTime.Now); attributeDefinitionFileNameRecord.AllocatedLength = (ulong)attributeDefinitionAllocatedLength; attributeDefinitionFileNameRecord.FileSize = (ulong)attributeDefinitionLength; attributeDefinitionFileNameRecord.FileAttributes = FileAttributes.Hidden | FileAttributes.System; FileRecordSegment attributeDefinitionSegment = CreateBaseRecordSegment(MasterFileTable.AttrDefSegmentNumber, (ushort)MasterFileTable.AttrDefSegmentNumber, attributeDefinitionFileNameRecord); attributeDefinitionSegment.ReferenceCount = 1; NonResidentAttributeRecord attributeDefinitionDataRecord = (NonResidentAttributeRecord)attributeDefinitionSegment.CreateAttributeRecord(AttributeType.Data, String.Empty, false); attributeDefinitionDataRecord.AllocatedLength = (ulong)attributeDefinitionAllocatedLength; attributeDefinitionDataRecord.FileSize = (ulong)attributeDefinitionLength; attributeDefinitionDataRecord.ValidDataLength = (ulong)attributeDefinitionLength; attributeDefinitionDataRecord.DataRunSequence.Add(new DataRun(attributeDefinitionClusterCount, attributeDefinitionStartLCN)); attributeDefinitionDataRecord.HighestVCN = attributeDefinitionClusterCount - 1; FileNameRecord badClustersFileNameRecord = new FileNameRecord(MasterFileTable.RootDirSegmentReference, "$BadClus", false, DateTime.Now); badClustersFileNameRecord.FileAttributes = FileAttributes.Hidden | FileAttributes.System; FileRecordSegment badClustersSegment = CreateBaseRecordSegment(MasterFileTable.BadClusSegmentNumber, (ushort)MasterFileTable.BadClusSegmentNumber, badClustersFileNameRecord); badClustersSegment.ReferenceCount = 1; badClustersSegment.CreateAttributeRecord(AttributeType.Data, String.Empty); NonResidentAttributeRecord badClustersData = (NonResidentAttributeRecord)badClustersSegment.CreateAttributeRecord(AttributeType.Data, "$Bad", false); DataRun volumeDataRun = new DataRun(); volumeDataRun.RunLength = volumeClusterCount; volumeDataRun.IsSparse = true; badClustersData.DataRunSequence.Add(volumeDataRun); badClustersData.HighestVCN = volumeClusterCount - 1; badClustersData.AllocatedLength = (ulong)(volumeClusterCount * bytesPerCluster); badClustersData.FileSize = 0; badClustersData.ValidDataLength = 0; FileNameRecord secureFileNameRecord = new FileNameRecord(MasterFileTable.RootDirSegmentReference, "$Secure", false, DateTime.Now); secureFileNameRecord.FileAttributes = FileAttributes.Hidden | FileAttributes.System; FileRecordSegment secureSegment = CreateBaseRecordSegment(MasterFileTable.SecureSegmentNumber, (ushort)MasterFileTable.SecureSegmentNumber, secureFileNameRecord); secureSegment.IsSpecialIndex = true; secureSegment.ReferenceCount = 1; secureSegment.CreateAttributeRecord(AttributeType.Data, "$SDS"); IndexRootRecord sdh = (IndexRootRecord)secureSegment.CreateAttributeRecord(AttributeType.IndexRoot, "$SDH"); IndexHelper.InitializeIndexRoot(sdh, AttributeType.None, CollationRule.SecurityHash, bytesPerIndexRecord, bytesPerCluster); IndexRootRecord sii = (IndexRootRecord)secureSegment.CreateAttributeRecord(AttributeType.IndexRoot, "$SII"); IndexHelper.InitializeIndexRoot(sii, AttributeType.None, CollationRule.UnsignedLong, bytesPerIndexRecord, bytesPerCluster); int upcaseDataClusterCount = (int)Math.Ceiling((double)UpcaseFileLength / bytesPerCluster); FileNameRecord upcaseFileNameRecord = new FileNameRecord(MasterFileTable.RootDirSegmentReference, "$UpCase", false, DateTime.Now); upcaseFileNameRecord.AllocatedLength = UpcaseFileLength; upcaseFileNameRecord.FileSize = UpcaseFileLength; upcaseFileNameRecord.FileAttributes = FileAttributes.Hidden | FileAttributes.System; FileRecordSegment upcaseSegment = CreateBaseRecordSegment(MasterFileTable.UpCaseSegmentNumber, (ushort)MasterFileTable.UpCaseSegmentNumber, upcaseFileNameRecord); upcaseSegment.ReferenceCount = 1; NonResidentAttributeRecord upcaseFileDataRecord = (NonResidentAttributeRecord)upcaseSegment.CreateAttributeRecord(AttributeType.Data, String.Empty, false); upcaseFileDataRecord.AllocatedLength = UpcaseFileLength; upcaseFileDataRecord.FileSize = UpcaseFileLength; upcaseFileDataRecord.ValidDataLength = UpcaseFileLength; long upcaseDataStartLCN = attributeDefinitionStartLCN + attributeDefinitionClusterCount; upcaseFileDataRecord.DataRunSequence.Add(new DataRun(upcaseDataClusterCount, upcaseDataStartLCN)); upcaseFileDataRecord.HighestVCN = upcaseDataClusterCount - 1; FileNameRecord extendFileNameRecord = new FileNameRecord(MasterFileTable.RootDirSegmentReference, "$Extend", true, DateTime.Now); extendFileNameRecord.FileAttributes = FileAttributes.System | FileAttributes.Hidden | FileAttributes.FileNameIndexPresent; FileRecordSegment extendSegment = CreateBaseRecordSegment(MasterFileTable.ExtendSegmentNumber, (ushort)MasterFileTable.ExtendSegmentNumber, extendFileNameRecord); extendSegment.IsDirectory = true; extendSegment.ReferenceCount = 1; IndexRootRecord extendIndexRoot = (IndexRootRecord)extendSegment.CreateAttributeRecord(AttributeType.IndexRoot, IndexHelper.GetIndexName(AttributeType.FileName)); IndexHelper.InitializeIndexRoot(extendIndexRoot, AttributeType.FileName, CollationRule.Filename, bytesPerIndexRecord, bytesPerCluster); FileNameRecord mftMirrorFileNameRecord = new FileNameRecord(MasterFileTable.RootDirSegmentReference, "$MFTMirr", false, DateTime.Now); int mftMirrorDataLength = 4 * bytesPerFileRecordSegment; int mftMirrorDataClusterCount = (int)Math.Ceiling((double)mftMirrorDataLength / bytesPerCluster); int mftMirrorAllocatedLength = mftMirrorDataClusterCount * bytesPerCluster; mftMirrorFileNameRecord.AllocatedLength = (ulong)mftMirrorAllocatedLength; mftMirrorFileNameRecord.FileSize = (ulong)mftMirrorDataLength; mftMirrorFileNameRecord.FileAttributes = FileAttributes.Hidden | FileAttributes.System; FileRecordSegment mftMirrorSegment = CreateBaseRecordSegment(MasterFileTable.MftMirrorSegmentNumber, (ushort)MasterFileTable.MftMirrorSegmentNumber, mftMirrorFileNameRecord); mftMirrorSegment.ReferenceCount = 1; NonResidentAttributeRecord mftMirrorDataRecord = (NonResidentAttributeRecord)mftMirrorSegment.CreateAttributeRecord(AttributeType.Data, String.Empty, false); mftMirrorDataRecord.AllocatedLength = (ulong)mftMirrorAllocatedLength; mftMirrorDataRecord.FileSize = (ulong)mftMirrorDataLength; mftMirrorDataRecord.ValidDataLength = (ulong)mftMirrorDataLength; long mftMirrorDataStartLCN = upcaseDataStartLCN + upcaseDataClusterCount; mftMirrorDataRecord.DataRunSequence.Add(new DataRun(mftMirrorDataClusterCount, mftMirrorDataStartLCN)); mftMirrorDataRecord.HighestVCN = mftMirrorDataClusterCount - 1; FileNameRecord rootDirFileNameRecord = new FileNameRecord(MasterFileTable.RootDirSegmentReference, ".", true, DateTime.Now); rootDirFileNameRecord.FileAttributes = FileAttributes.System | FileAttributes.Hidden | FileAttributes.FileNameIndexPresent; FileRecordSegment rootDirSegment = CreateBaseRecordSegment(MasterFileTable.RootDirSegmentNumber, (ushort)MasterFileTable.RootDirSegmentNumber, rootDirFileNameRecord); rootDirSegment.IsDirectory = true; rootDirSegment.ReferenceCount = 1; IndexRecord rootDirIndexRecord = new IndexRecord(); rootDirIndexRecord.RecordVBN = 0; // Note that we add the index entries according to collation rules rootDirIndexRecord.IndexEntries.Add(new IndexEntry(attributeDefinitionSegment.SegmentReference, attributeDefinitionFileNameRecord.GetBytes())); rootDirIndexRecord.IndexEntries.Add(new IndexEntry(badClustersSegment.SegmentReference, badClustersFileNameRecord.GetBytes())); rootDirIndexRecord.IndexEntries.Add(new IndexEntry(volumeBitmapSegment.SegmentReference, volumeBitmapFileNameRecord.GetBytes())); rootDirIndexRecord.IndexEntries.Add(new IndexEntry(bootSegment.SegmentReference, bootFileNameRecord.GetBytes())); rootDirIndexRecord.IndexEntries.Add(new IndexEntry(extendSegment.SegmentReference, extendFileNameRecord.GetBytes())); rootDirIndexRecord.IndexEntries.Add(new IndexEntry(logFileSegment.SegmentReference, logFileNameRecord.GetBytes())); rootDirIndexRecord.IndexEntries.Add(new IndexEntry(mftSegment.SegmentReference, mftFileNameRecord.GetBytes())); rootDirIndexRecord.IndexEntries.Add(new IndexEntry(mftMirrorSegment.SegmentReference, mftMirrorFileNameRecord.GetBytes())); rootDirIndexRecord.IndexEntries.Add(new IndexEntry(secureSegment.SegmentReference, secureFileNameRecord.GetBytes())); rootDirIndexRecord.IndexEntries.Add(new IndexEntry(upcaseSegment.SegmentReference, upcaseFileNameRecord.GetBytes())); rootDirIndexRecord.IndexEntries.Add(new IndexEntry(volumeSegment.SegmentReference, volumeFileNameRecord.GetBytes())); rootDirIndexRecord.IndexEntries.Add(new IndexEntry(rootDirSegment.SegmentReference, rootDirFileNameRecord.GetBytes())); long rootDirIndexRecordStartLCN = mftMirrorDataStartLCN + mftMirrorDataClusterCount; int rootDirIndexRecordClusterCount = (int)Math.Ceiling((double)bytesPerIndexRecord / bytesPerCluster); int rootDirIndexRecordAllocatedLength = rootDirIndexRecordClusterCount * bytesPerCluster; string rootDirIndexName = IndexHelper.GetIndexName(AttributeType.FileName); IndexRootRecord rootDirIndexRoot = (IndexRootRecord)rootDirSegment.CreateAttributeRecord(AttributeType.IndexRoot, rootDirIndexName); IndexHelper.InitializeIndexRoot(rootDirIndexRoot, AttributeType.FileName, CollationRule.Filename, bytesPerIndexRecord, bytesPerCluster); rootDirIndexRoot.IsParentNode = true; IndexEntry rootEntry = new IndexEntry(); rootEntry.ParentNodeForm = true; rootEntry.SubnodeVBN = 0; rootDirIndexRoot.IndexEntries.Add(rootEntry); IndexAllocationRecord rootDirIndexAllocation = (IndexAllocationRecord)rootDirSegment.CreateAttributeRecord(AttributeType.IndexAllocation, rootDirIndexName, false); rootDirIndexAllocation.AllocatedLength = (uint)rootDirIndexRecordAllocatedLength; rootDirIndexAllocation.FileSize = (uint)bytesPerIndexRecord; rootDirIndexAllocation.ValidDataLength = (uint)bytesPerIndexRecord; rootDirIndexAllocation.DataRunSequence.Add(new DataRun(rootDirIndexRecordClusterCount, rootDirIndexRecordStartLCN)); rootDirIndexAllocation.HighestVCN = rootDirIndexRecordClusterCount - 1; ResidentAttributeRecord rootDirBitmap = (ResidentAttributeRecord)rootDirSegment.CreateAttributeRecord(AttributeType.Bitmap, rootDirIndexName); rootDirBitmap.Data = new byte[BitmapData.ExtendGranularity]; BitmapData.SetBit(rootDirBitmap.Data, 0); long numberOfClustersInUse = rootDirIndexRecordStartLCN + rootDirIndexRecordClusterCount; long volumeBitmapStartSector = volumeBitmapStartLCN * sectorsPerCluster; WriteVolumeBitmap(volume, volumeBitmapStartSector, volumeClusterCount, numberOfClustersInUse); long mftBitmapStartSector = mftBitmapStartLCN * sectorsPerCluster; WriteMftBitmap(volume, mftBitmapStartSector, numberOfMftRecords, mftBitmapLength); // Write MFT data byte[] mftData = new byte[mftDataLength]; long mftDataStartSector = mftDataStartLCN * sectorsPerCluster; WriteFileRecordSegment(mftData, mftSegment, bytesPerFileRecordSegment, minorNTFSVersion); WriteFileRecordSegment(mftData, mftMirrorSegment, bytesPerFileRecordSegment, minorNTFSVersion); WriteFileRecordSegment(mftData, logFileSegment, bytesPerFileRecordSegment, minorNTFSVersion); WriteFileRecordSegment(mftData, volumeSegment, bytesPerFileRecordSegment, minorNTFSVersion); WriteFileRecordSegment(mftData, attributeDefinitionSegment, bytesPerFileRecordSegment, minorNTFSVersion); WriteFileRecordSegment(mftData, rootDirSegment, bytesPerFileRecordSegment, minorNTFSVersion); WriteFileRecordSegment(mftData, volumeBitmapSegment, bytesPerFileRecordSegment, minorNTFSVersion); WriteFileRecordSegment(mftData, bootSegment, bytesPerFileRecordSegment, minorNTFSVersion); WriteFileRecordSegment(mftData, badClustersSegment, bytesPerFileRecordSegment, minorNTFSVersion); WriteFileRecordSegment(mftData, secureSegment, bytesPerFileRecordSegment, minorNTFSVersion); WriteFileRecordSegment(mftData, upcaseSegment, bytesPerFileRecordSegment, minorNTFSVersion); WriteFileRecordSegment(mftData, extendSegment, bytesPerFileRecordSegment, minorNTFSVersion); for (long segmentNumber = MasterFileTable.ExtendSegmentNumber + 1; segmentNumber < MasterFileTable.FirstReservedSegmentNumber; segmentNumber++) { FileRecordSegment systemSegment = CreateSystemReservedSegment(segmentNumber); WriteFileRecordSegment(mftData, systemSegment, bytesPerFileRecordSegment, minorNTFSVersion); } volume.WriteSectors(mftDataStartSector, mftData); long upcaseDataStartSector = upcaseDataStartLCN * sectorsPerCluster; WriteUpCaseFile(volume, upcaseDataStartSector); long rootDirIndexRecordStartSector = rootDirIndexRecordStartLCN * sectorsPerCluster; WriteIndexRecord(volume, rootDirIndexRecordStartSector, rootDirIndexRecord, bytesPerIndexRecord); // Write MFT mirror data byte[] mftMirrorData = new byte[mftMirrorDataLength]; long mftMirrorDataStartSector = mftMirrorDataStartLCN * sectorsPerCluster; WriteFileRecordSegment(mftMirrorData, mftSegment, bytesPerFileRecordSegment, minorNTFSVersion); WriteFileRecordSegment(mftMirrorData, mftMirrorSegment, bytesPerFileRecordSegment, minorNTFSVersion); WriteFileRecordSegment(mftMirrorData, logFileSegment, bytesPerFileRecordSegment, minorNTFSVersion); WriteFileRecordSegment(mftMirrorData, volumeSegment, bytesPerFileRecordSegment, minorNTFSVersion); volume.WriteSectors(mftMirrorDataStartSector, mftMirrorData); NTFSBootRecord bootRecord = CreateNTFSBootRecord(volumeClusterCount, sectorsPerCluster, volume.BytesPerSector, bytesPerFileRecordSegment, bytesPerIndexRecord, mftDataStartLCN, mftMirrorDataStartLCN); volume.WriteSectors(0, bootRecord.GetBytes()); volume.WriteSectors(volume.TotalSectors - 1, bootRecord.GetBytes()); return(new NTFSVolume(volume)); }
public void UpdateFileRecord(FileRecord fileRecord, uint transactionID) { Dictionary <MftSegmentReference, byte[]> undoDictionary = new Dictionary <MftSegmentReference, byte[]>(); foreach (FileRecordSegment segment in fileRecord.Segments) { byte[] segmentBytes = segment.GetBytes(m_volume.BytesPerFileRecordSegment, m_volume.MinorVersion, false); undoDictionary.Add(segment.SegmentReference, segmentBytes); } AttributeRecord oldAttributeList = fileRecord.BaseSegment.GetImmediateAttributeRecord(AttributeType.AttributeList, String.Empty); fileRecord.UpdateSegments(m_volume.BytesPerFileRecordSegment, m_volume.MinorVersion); FileRecordSegment baseSegment = fileRecord.BaseSegment; for (int segmentIndex = 1; segmentIndex < fileRecord.Segments.Count; segmentIndex++) { FileRecordSegment segment = fileRecord.Segments[segmentIndex]; if (segment.SegmentReference == MftSegmentReference.NullReference) { // New segment, we must allocate space for it MftSegmentReference segmentReference; if (baseSegment.SegmentNumber == MasterFileTable.MasterFileTableSegmentNumber) { segmentReference = AllocateReservedFileRecordSegment(transactionID); } else { segmentReference = AllocateFileRecordSegment(transactionID); } FileRecordSegment newSegment = new FileRecordSegment(segmentReference.SegmentNumber, segmentReference.SequenceNumber, baseSegment.SegmentReference); newSegment.IsInUse = true; newSegment.IsDirectory = fileRecord.IsDirectory; newSegment.NextAttributeInstance = segment.NextAttributeInstance; newSegment.ImmediateAttributes.AddRange(segment.ImmediateAttributes); fileRecord.Segments[segmentIndex] = newSegment; } else if (segment.ImmediateAttributes.Count == 0) { byte[] undoData = undoDictionary[segment.SegmentReference]; ulong streamOffset = (ulong)(segment.SegmentNumber * m_volume.BytesPerFileRecordSegment); m_volume.LogClient.WriteLogRecord(m_mftRecord.BaseSegmentReference, m_mftRecord.DataRecord, streamOffset, m_volume.BytesPerFileRecordSegment, NTFSLogOperation.DeallocateFileRecordSegment, new byte[0], NTFSLogOperation.InitializeFileRecordSegment, undoData, transactionID); DeallocateFileRecordSegment(segment, transactionID); fileRecord.Segments.RemoveAt(segmentIndex); segmentIndex--; } } for (int segmentIndex = 1; segmentIndex < fileRecord.Segments.Count; segmentIndex++) { FileRecordSegment segment = fileRecord.Segments[segmentIndex]; byte[] undoData; byte[] redoData = segment.GetBytes(m_volume.BytesPerFileRecordSegment, m_volume.MinorVersion, false); ulong streamOffset = (ulong)(segment.SegmentNumber * m_volume.BytesPerFileRecordSegment); if (undoDictionary.TryGetValue(segment.SegmentReference, out undoData)) { m_volume.LogClient.WriteLogRecord(m_mftRecord.BaseSegmentReference, m_mftRecord.DataRecord, streamOffset, m_volume.BytesPerFileRecordSegment, NTFSLogOperation.InitializeFileRecordSegment, redoData, NTFSLogOperation.InitializeFileRecordSegment, undoData, transactionID); } else { // New segment m_volume.LogClient.WriteLogRecord(m_mftRecord.BaseSegmentReference, m_mftRecord.DataRecord, streamOffset, m_volume.BytesPerFileRecordSegment, NTFSLogOperation.InitializeFileRecordSegment, redoData, NTFSLogOperation.DeallocateFileRecordSegment, new byte[0], transactionID); } UpdateFileRecordSegment(segment); } if (oldAttributeList is NonResidentAttributeRecord) { new NonResidentAttributeData(m_volume, null, (NonResidentAttributeRecord)oldAttributeList).Truncate(0); } bool needsAttributeList = (fileRecord.Segments.Count > 1); if (needsAttributeList) { List <AttributeListEntry> entries = FileRecordHelper.BuildAttributeList(fileRecord.Segments, m_volume.BytesPerFileRecordSegment, m_volume.MinorVersion); int dataLength = AttributeList.GetLength(entries); int attributeListRecordLength = ResidentAttributeRecord.GetRecordLength(0, dataLength); int numberOfBytesFreeInBaseSegment = baseSegment.GetNumberOfBytesFree(m_volume.BytesPerFileRecordSegment, m_volume.MinorVersion); bool isResident = (attributeListRecordLength <= numberOfBytesFreeInBaseSegment); AttributeRecord attributeListRecord = baseSegment.CreateAttributeListRecord(isResident); AttributeList attributeList = new AttributeList(m_volume, attributeListRecord); attributeList.WriteEntries(entries); } byte[] baseRecordUndoData = undoDictionary[baseSegment.SegmentReference]; byte[] baseRecordRedoData = baseSegment.GetBytes(m_volume.BytesPerFileRecordSegment, m_volume.MinorVersion, false); ulong baseRecordStreamOffset = (ulong)(baseSegment.SegmentNumber * m_volume.BytesPerFileRecordSegment); m_volume.LogClient.WriteLogRecord(m_mftRecord.BaseSegmentReference, m_mftRecord.DataRecord, baseRecordStreamOffset, m_volume.BytesPerFileRecordSegment, NTFSLogOperation.InitializeFileRecordSegment, baseRecordRedoData, NTFSLogOperation.InitializeFileRecordSegment, baseRecordUndoData, transactionID); UpdateFileRecordSegment(baseSegment); }