public NonResidentAttributeStream(File file, FileAccess access, NonResidentAttributeRecord record, params SparseStream[] extents)
{
_file = file;
_access = access;
_record = record;
_extents = extents;
_bytesPerCluster = file.Context.BiosParameterBlock.BytesPerCluster;
}
public NonResidentAttributeExtentStream(File file, FileAccess access, NonResidentAttributeRecord record)
{
_file = file;
_fsStream = _file.Context.RawStream;
_bytesPerCluster = file.Context.BiosParameterBlock.BytesPerCluster;
_runs = CookedDataRunCook(record.DataRuns);
_record = record;
_access = access;
}
/// <summary>
/// This test checks that attributes are deep cloned when assembled from FileRecordSegment list and sliced into FileRecordSegment list.
/// </summary>
public static void AttributeCloneTest()
{
byte minorNTFSVersion = 1;
int bytesPerFileRecordSegment = 1024;
FileRecordSegment baseSegment = new FileRecordSegment(30, 1);
FileRecordSegment segment2 = new FileRecordSegment(31, 1, baseSegment.SegmentReference);
FileNameRecord fileNameRecord = new FileNameRecord(NTFSVolume.RootDirSegmentReference, "john.txt", false, DateTime.Now);
FileNameAttributeRecord fileNameAttribute = new FileNameAttributeRecord(String.Empty);
fileNameAttribute.Record = fileNameRecord;
NonResidentAttributeRecord dataRecord = new NonResidentAttributeRecord(AttributeType.Data, String.Empty);
baseSegment.ImmediateAttributes.Add(fileNameAttribute);
baseSegment.ImmediateAttributes.Add(dataRecord);
dataRecord.DataRunSequence.Add(new DataRun(5, 0));
byte[] segmentBytesBefore = baseSegment.GetBytes(bytesPerFileRecordSegment, minorNTFSVersion, false);
List <FileRecordSegment> segments = new List <FileRecordSegment>();
segments.Add(baseSegment);
segments.Add(segment2);
FileRecord fileRecord = new FileRecord(segments);
((NonResidentAttributeRecord)fileRecord.DataRecord).DataRunSequence[0].RunLength = 8;
fileRecord.FileNameRecord.ParentDirectory = new MftSegmentReference(8, 8);
fileRecord.FileNameRecord.FileName = "d";
byte[] segmentBytesAfter = baseSegment.GetBytes(bytesPerFileRecordSegment, minorNTFSVersion, false);
if (!ByteUtils.AreByteArraysEqual(segmentBytesBefore, segmentBytesAfter))
{
throw new Exception("Test failed");
}
fileRecord.UpdateSegments(1024, 1);
byte[] segmentBytesBefore2 = fileRecord.Segments[0].GetBytes(bytesPerFileRecordSegment, minorNTFSVersion, false);
((NonResidentAttributeRecord)fileRecord.DataRecord).DataRunSequence[0].RunLength = 10;
fileRecord.FileNameRecord.FileName = "x";
byte[] segmentBytesAfter2 = fileRecord.Segments[0].GetBytes(bytesPerFileRecordSegment, minorNTFSVersion, false);
if (!ByteUtils.AreByteArraysEqual(segmentBytesBefore2, segmentBytesAfter2))
{
throw new Exception("Test failed");
}
}