public FileSystemNTFS(IFileSystemStore store) {
Store = store;
LoadBPB();
_mftSector = (BPB_MFTStartCluster64 * BPB_SecPerClus);
_MFT = new FileNTFS(MFTRecord.Load(0, this), "");
_root = new FolderNTFS(MFTRecord.Load(5, this), "", true);
_bitmapFile = new FileNTFS(MFTRecord.Load(6, this), "");
_bitmap = _bitmapFile.GetBytes(0, _bitmapFile.StreamLength);
}
public FileSystemNTFS(IFileSystemStore store)
{
Store = store;
LoadBPB();
_mftSector = (BPB_MFTStartCluster64 * BPB_SecPerClus);
_MFT = new FileNTFS(MFTRecord.Load(0, this), "");
_root = new FolderNTFS(MFTRecord.Load(5, this), "", true);
_bitmapFile = new FileNTFS(MFTRecord.Load(6, this), "");
_bitmap = _bitmapFile.GetBytes(0, _bitmapFile.StreamLength);
}
internal override FileRecoveryStatus GetChanceOfRecovery(FileSystemNode node)
{
FileNTFS file = node as FileNTFS;
if (file == null)
{
return(FileRecoveryStatus.Unknown);
}
else
{
IEnumerable <IRun> runs = file.GetRuns();
if (runs == null)
{
// The data stream is resident, so recovery is trivial.
return(FileRecoveryStatus.Resident);
}
else
{
ulong totalClusters = 0;
ulong usedClusters = 0;
// Check the status of each cluster in the runs.
foreach (IRun run in runs)
{
if (run.HasRealClusters)
{
totalClusters += run.LengthInClusters;
for (ulong i = run.LCN; i < run.LengthInClusters; i++)
{
if (GetClusterStatus(run.LCN + i) == SectorStatus.Used ||
GetClusterStatus(run.LCN + i) == SectorStatus.Bad)
{
usedClusters++;
}
}
}
}
if (usedClusters == 0)
{
return(FileRecoveryStatus.MaybeOverwritten);
}
else if (usedClusters < totalClusters)
{
return(FileRecoveryStatus.PartiallyOverwritten);
}
else
{
return(FileRecoveryStatus.Overwritten);
}
}
}
}
public FolderNTFS(MFTRecord record, string path, bool isRoot = false)
{
_record = record;
FileSystem = record.FileSystem;
Deleted = _record.Deleted;
_indexRoot = new NTFSFileStream(_record.PartitionStream, _record, AttributeType.IndexRoot);
MFTAttribute attr = _record.GetAttribute(AttributeType.IndexAllocation);
if (attr != null)
{
_indexAllocation = new NTFSFileStream(_record.PartitionStream, _record, AttributeType.IndexAllocation);
}
if (isRoot) // root
{
Root = true;
Name = FileSystem.Store.DeviceID;
Path = FileSystem.Store.DeviceID;
foreach (FileSystemNode node in GetChildren("$Volume"))
{
FileNTFS file = node as FileNTFS;
if (file != null && file.VolumeLabel != "")
{
Name = file.VolumeLabel;
break;
}
}
}
else
{
Name = PathUtils.MakeFileNameValid(record.FileName);
if (!string.IsNullOrEmpty(path))
{
Path = PathUtils.Combine(path, Name);
}
else
{
// We don't know the path
Path = PathUtils.Combine(FileSystem.Store.DeviceID, "?", Name);
}
}
}
