private void Initialize()
{
byte[] data = new byte[512];
DiskStream.Seek(0, SeekOrigin.Begin);
DiskStream.Read(data, 0, data.Length);
BootSector = BootSector.ParseData(data, 512, 0);
BytesPerFileRecord = BootSector.MftRecordSizeBytes;
SectorsPerRecord = BytesPerFileRecord / BytesPerSector;
MftFile = ParseMftRecordData(ReadMftRecordData((uint)MetadataMftFiles.Mft));
MftStream = OpenFileRecord(MftFile);
AttributeData mftFileData = null;
foreach (var att in MftFile.Attributes)
{
if (att is AttributeData attributeData)
{
mftFileData = attributeData;
}
}
if (mftFileData == null)
{
throw new Exception("ntfs error: unable to load mft data");
}
long clusterBytes = 0;
foreach (var frag in mftFileData.DataFragments)
{
clusterBytes += frag.Clusters * BytesPerCluster;
}
FileRecordCount = (uint)(clusterBytes / BytesPerFileRecord);
FileRecords = new FileRecord[FileRecordCount];
FileRecords[0] = MftFile;
Console.WriteLine("[NTFSDRV2] Initialized with " + FileRecordCount + " file records");
}
public byte[] ReadMftRecordData(uint number)
{
var length = BytesPerFileRecord == 0 ? 4096 : BytesPerFileRecord;
long offset = number * length;
if (MftFile == null)
{
offset += (long)(BootSector.MftCluster * BytesPerCluster);
}
else if (MftStream != null)
{
var mftData = new byte[length];
MftStream.Seek(offset, SeekOrigin.Begin);
MftStream.Read(mftData, 0, mftData.Length);
return(mftData);
}
var data = new byte[length];
DiskStream.Seek(offset, SeekOrigin.Begin);
DiskStream.Read(data, 0, data.Length);
return(data);
}
