internal static FileRecord GetFileRecord(string volume)
{
Helper.getVolumeName(ref volume);
return(FileRecord.Get(volume, MftIndex.BADCLUS_INDEX, true));
}
internal static byte[] GetBytes(FileStream streamToRead, string volume)
{
FileRecord mftRecord = GetRecord(streamToRead, volume);
return(mftRecord.GetContent());
}
/// <summary>
///
/// </summary>
/// <param name="path"></param>
/// <param name="streamName"></param>
/// <returns></returns>
public static byte[] GetContentBytes(string path, string streamName)
{
FileRecord record = Get(path, true);
return(record.GetContent(streamName));
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public byte[] GetMftSlack()
{
byte[] bytes = FileRecord.GetRecordBytes(this.VolumePath, (int)this.RecordNumber);
return(Helper.GetSubArray(bytes, this.RealSize - 1, this.AllocatedSize - this.RealSize));
}
private FileRecord(byte[] recordBytes, string volume, int bytesPerFileRecord, bool fast)
{
if (Encoding.ASCII.GetString(recordBytes, 0x00, 0x04) == "FILE")
{
VolumePath = volume;
OffsetOfUS = BitConverter.ToUInt16(recordBytes, 0x04);
SizeOfUS = BitConverter.ToUInt16(recordBytes, 0x06);
LogFileSequenceNumber = BitConverter.ToUInt64(recordBytes, 0x08);
SequenceNumber = BitConverter.ToUInt16(recordBytes, 0x10);
Hardlinks = BitConverter.ToUInt16(recordBytes, 0x12);
OffsetOfAttribute = BitConverter.ToUInt16(recordBytes, 0x14);
Flags = (FILE_RECORD_FLAG)BitConverter.ToUInt16(recordBytes, 0x16);
Deleted = isDeleted(Flags);
Directory = isDirectory(Flags);
RealSize = BitConverter.ToInt32(recordBytes, 0x18);
AllocatedSize = BitConverter.ToInt32(recordBytes, 0x1C);
ReferenceToBase = BitConverter.ToUInt64(recordBytes, 0x20);
NextAttrId = BitConverter.ToUInt16(recordBytes, 40);
RecordNumber = BitConverter.ToUInt32(recordBytes, 44);
Attribute = FileRecordAttribute.GetInstances(recordBytes, OffsetOfAttribute, bytesPerFileRecord, volume);
#region AttributeProperties
foreach (FileRecordAttribute attr in Attribute)
{
if (attr.Name == FileRecordAttribute.ATTR_TYPE.STANDARD_INFORMATION)
{
StandardInformation stdInfo = attr as StandardInformation;
ModifiedTime = stdInfo.ModifiedTime;
AccessedTime = stdInfo.AccessedTime;
ChangedTime = stdInfo.ChangedTime;
BornTime = stdInfo.BornTime;
Permission = stdInfo.Permission;
}
else if (attr.Name == FileRecordAttribute.ATTR_TYPE.ATTRIBUTE_LIST)
{
if (!(Deleted))
{
AttributeList attrList = null;
List <FileRecordAttribute> list = new List <FileRecordAttribute>();
list.AddRange(Attribute);
if (attr.NonResident)
{
attrList = new AttributeList(attr as NonResident);
}
else
{
attrList = attr as AttributeList;
}
foreach (AttrRef attribute in attrList.AttributeReference)
{
if (attribute.RecordNumber != RecordNumber)
{
FileRecord record = FileRecord.Get(volume, (int)attribute.RecordNumber);
list.AddRange(record.Attribute);
list.Remove(attr);
}
}
Attribute = list.ToArray();
}
}
else if (attr.Name == FileRecordAttribute.ATTR_TYPE.FILE_NAME)
{
FileName fN = attr as FileName;
if (!(fN.Namespace == 2))
{
Name = fN.Filename;
ParentSequenceNumber = fN.ParentSequenceNumber;
ParentRecordNumber = fN.ParentRecordNumber;
FNModifiedTime = fN.ModifiedTime;
FNAccessedTime = fN.AccessedTime;
FNChangedTime = fN.ChangedTime;
FNBornTime = fN.BornTime;
}
}
}
#endregion AttributeProperties
#region FullName
if (fast)
{
FullName = Name;
}
else
{
StringBuilder sb = new StringBuilder();
string volLetter = Helper.GetVolumeLetter(volume);
if (RecordNumber == 0)
{
sb.Append(volLetter);
sb.Append('\\');
sb.Append(Name);
FullName = sb.ToString();
}
else if (RecordNumber == 5)
{
FullName = volLetter;
}
else
{
FileRecord parent = new FileRecord(GetRecordBytes(volume, (int)ParentRecordNumber), volume, bytesPerFileRecord, false);
if (parent.SequenceNumber == this.ParentSequenceNumber)
{
sb.Append(parent.FullName);
}
else
{
sb.Append(@"$OrphanFiles");
}
if (Name != null)
{
sb.Append('\\');
FullName = sb.Append(Name).ToString();
}
else
{
FullName = sb.ToString();
}
}
}
#endregion FullName
}
}
private FileRecord(ref FileRecord[] recordArray, byte[] bytes, int offset, int bytesPerFileRecord, string volume, bool fast)
{
if (Encoding.ASCII.GetString(bytes, 0x00 + offset, 0x04) == "FILE")
{
OffsetOfUS = BitConverter.ToUInt16(bytes, 0x04 + offset);
SizeOfUS = BitConverter.ToUInt16(bytes, 0x06 + offset);
LogFileSequenceNumber = BitConverter.ToUInt64(bytes, 0x08 + offset);
SequenceNumber = BitConverter.ToUInt16(bytes, 0x10 + offset);
Hardlinks = BitConverter.ToUInt16(bytes, 0x12 + offset);
OffsetOfAttribute = BitConverter.ToUInt16(bytes, 0x14 + offset);
Flags = (FILE_RECORD_FLAG)BitConverter.ToUInt16(bytes, 0x16 + offset);
Deleted = isDeleted(Flags);
Directory = isDirectory(Flags);
RealSize = BitConverter.ToInt32(bytes, 0x18 + offset);
AllocatedSize = BitConverter.ToInt32(bytes, 0x1C + offset);
ReferenceToBase = BitConverter.ToUInt64(bytes, 0x20 + offset);
NextAttrId = BitConverter.ToUInt16(bytes, 0x28 + offset);
RecordNumber = BitConverter.ToUInt32(bytes, 0x2C + offset);
Attribute = FileRecordAttribute.GetInstances(bytes, OffsetOfAttribute + offset, bytesPerFileRecord, volume);
#region AttributeProperties
foreach (FileRecordAttribute attr in Attribute)
{
if (attr.Name == FileRecordAttribute.ATTR_TYPE.STANDARD_INFORMATION)
{
StandardInformation stdInfo = attr as StandardInformation;
ModifiedTime = stdInfo.ModifiedTime;
AccessedTime = stdInfo.AccessedTime;
ChangedTime = stdInfo.ChangedTime;
BornTime = stdInfo.BornTime;
Permission = stdInfo.Permission;
}
else if (attr.Name == FileRecordAttribute.ATTR_TYPE.ATTRIBUTE_LIST)
{
if (!(Deleted))
{
AttributeList attrList = null;
List <FileRecordAttribute> list = new List <FileRecordAttribute>();
list.AddRange(Attribute);
if (attr.NonResident)
{
attrList = new AttributeList(attr as NonResident);
}
else
{
attrList = attr as AttributeList;
}
foreach (AttrRef attribute in attrList.AttributeReference)
{
if (attribute.RecordNumber != RecordNumber)
{
FileRecord record = null;
// Test if we have already parse the record
if (recordArray[attribute.RecordNumber] != null)
{
record = recordArray[attribute.RecordNumber];
}
else
{
// If not parse it and add it to the array
record = new FileRecord(ref recordArray, bytes, bytesPerFileRecord * (int)attribute.RecordNumber, bytesPerFileRecord, volume, fast);
recordArray[attribute.RecordNumber] = record;
}
// Add the attributes to the attribute array
list.AddRange(record.Attribute);
list.Remove(attr);
}
}
Attribute = list.ToArray();
}
}
else if (attr.Name == FileRecordAttribute.ATTR_TYPE.FILE_NAME)
{
FileName fN = attr as FileName;
if (!(fN.Namespace == 2))
{
Name = fN.Filename;
ParentSequenceNumber = fN.ParentSequenceNumber;
ParentRecordNumber = fN.ParentRecordNumber;
FNModifiedTime = fN.ModifiedTime;
FNAccessedTime = fN.AccessedTime;
FNChangedTime = fN.ChangedTime;
FNBornTime = fN.BornTime;
}
}
}
#endregion AttributeProperties
#region FullName
if (fast)
{
FullName = Name;
}
else
{
StringBuilder sb = new StringBuilder();
string volLetter = Helper.GetVolumeLetter(volume);
if (RecordNumber == 0)
{
sb.Append(volLetter);
sb.Append('\\');
sb.Append(Name);
FullName = sb.ToString();
}
else if (RecordNumber == 5)
{
FullName = volLetter;
}
else
{
FileRecord parent = null;
if (recordArray[this.ParentRecordNumber] != null)
{
parent = recordArray[this.ParentRecordNumber];
}
else
{
parent = new FileRecord(ref recordArray, bytes, bytesPerFileRecord * (int)this.ParentRecordNumber, bytesPerFileRecord, volume, fast);
recordArray[this.ParentRecordNumber] = parent;
}
if (parent.SequenceNumber == this.ParentSequenceNumber)
{
sb.Append(parent.FullName);
}
else
{
sb.Append(@"$OrphanFiles");
}
if (Name != null)
{
sb.Append('\\');
FullName = sb.Append(Name).ToString();
}
else
{
FullName = sb.ToString();
}
}
}
#endregion FullName
}
}
/// <summary>
///
/// </summary>
/// <param name="path"></param>
/// <returns></returns>
public static IndexEntry Get(string path)
{
string[] paths = path.TrimEnd('\\').Split('\\');
// Determine Volume Name
string volume = Helper.GetVolumeFromPath(path);
// Test volume path
Helper.getVolumeName(ref volume);
int index = -1;
List <IndexEntry> indexEntryList = new List <IndexEntry>();
for (int i = 0; i < paths.Length; i++)
{
if (index == -1)
{
index = 5;
}
else
{
bool match = false;
foreach (IndexEntry entry in indexEntryList)
{
if (entry.Entry.Filename.ToUpper() == paths[i].ToUpper())
{
index = (int)entry.RecordNumber;
match = true;
}
}
if (!(match))
{
throw new Exception("Path " + path + " not found.");
}
}
FileRecord record = FileRecord.Get(volume, index, false);
indexEntryList.Clear();
if (i < paths.Length - 1)
{
foreach (FileRecordAttribute attr in record.Attribute)
{
if (attr.Name == FileRecordAttribute.ATTR_TYPE.INDEX_ROOT)
{
foreach (IndexEntry entry in (attr as IndexRoot).Entries)
{
if (entry.Entry.Namespace != 0x02)
{
indexEntryList.Add(entry);
}
}
}
else if (attr.Name == FileRecordAttribute.ATTR_TYPE.INDEX_ALLOCATION)
{
// Get INDEX_ALLOCATION bytes
IndexAllocation IA = new IndexAllocation(attr as NonResident, volume);
foreach (IndexEntry entry in IA.Entries)
{
if (entry.Entry.Namespace != 0x02)
{
indexEntryList.Add(entry);
}
}
}
}
}
else
{
return(new IndexEntry(record));
}
}
throw new Exception("The IndexEntry object for the specified path could not be found.");
}
/// <summary>
///
/// </summary>
/// <param name="path"></param>
/// <returns></returns>
public static AttrDef[] GetInstancesByPath(string path)
{
FileRecord record = FileRecord.Get(path, true);
return(AttrDef.GetInstances(record.GetContent()));
}
private IndexEntry(FileRecord record)
{
RecordNumber = record.RecordNumber;
Filename = record.Name;
FullName = record.FullName;
}
/// <summary>
///
/// </summary>
/// <param name="path"></param>
/// <returns></returns>
public static IndexEntry[] GetInstances(string path)
{
string[] paths = path.TrimEnd('\\').Split('\\');
// Determine Volume Name
string volume = Helper.GetVolumeFromPath(path);
// Test volume path
Helper.getVolumeName(ref volume);
int index = -1;
List <IndexEntry> indexEntryList = new List <IndexEntry>();
for (int i = 0; i < paths.Length; i++)
{
if (index == -1)
{
index = 5;
}
else
{
bool match = false;
foreach (IndexEntry entry in indexEntryList)
{
if (entry.Entry.Filename.ToUpper() == paths[i].ToUpper())
{
index = (int)entry.RecordNumber;
match = true;
}
}
if (!(match))
{
throw new Exception("Path " + path + " not found.");
}
}
FileRecord record = FileRecord.Get(volume, index, true);
indexEntryList.Clear();
if (record.Directory)
{
foreach (FileRecordAttribute attr in record.Attribute)
{
if (attr.Name == FileRecordAttribute.ATTR_TYPE.INDEX_ROOT)
{
try
{
foreach (IndexEntry entry in (attr as IndexRoot).Entries)
{
if (entry.Entry.Namespace != 0x02)
{
StringBuilder sb = new StringBuilder();
sb.Append(path.TrimEnd('\\'));
sb.Append("\\");
sb.Append(entry.Filename);
entry.FullName = sb.ToString();
indexEntryList.Add(entry);
}
}
}
catch
{
return(null);
}
}
else if (attr.Name == FileRecordAttribute.ATTR_TYPE.INDEX_ALLOCATION)
{
// Get INDEX_ALLOCATION bytes
IndexAllocation IA = new IndexAllocation(attr as NonResident, volume);
foreach (IndexEntry entry in IA.Entries)
{
if (entry.Entry.Namespace != 0x02)
{
StringBuilder sb = new StringBuilder();
sb.Append(path.TrimEnd('\\'));
sb.Append("\\");
sb.Append(entry.Filename);
entry.FullName = sb.ToString();
indexEntryList.Add(entry);
}
}
}
}
}
else
{
IndexEntry[] indexArray = new IndexEntry[1];
indexArray[0] = new IndexEntry(record);
return(indexArray);
}
}
return(indexEntryList.ToArray());
}
/// <summary>
///
/// </summary>
/// <param name="path"></param>
/// <returns></returns>
public static byte[] GetBytesByPath(string path)
{
FileRecord record = FileRecord.Get(path, true);
return(record.GetContent(@"$Max"));
}
/// <summary>
///
/// </summary>
/// <param name="path"></param>
/// <returns></returns>
public static UsnJrnlInformation GetByPath(string path)
{
FileRecord record = FileRecord.Get(path, true);
return(new UsnJrnlInformation(record.GetContent(@"$Max")));
}
private static UsnJrnl Get(string volume, int recordnumber, long usn)
{
// Check for valid Volume name
Helper.getVolumeName(ref volume);
// Set up FileStream to read volume
FileStream streamToRead = Helper.getFileStream(volume);
// Get VolumeBootRecord object for logical addressing
VolumeBootRecord VBR = VolumeBootRecord.Get(streamToRead);
FileRecord record = FileRecord.Get(volume, recordnumber, true);
// Get the $J Data attribute (contains UsnJrnl details
NonResident J = UsnJrnl.GetJStream(record);
// Determine the length of the initial sparse pages
long SparseLength = J.DataRun[0].ClusterLength * VBR.BytesPerCluster;
if (usn > SparseLength)
{
// Subtract length of sparse data from desired usn offset
long usnOffset = usn - SparseLength;
// Iterate through each data run
for (int i = 1; i < J.DataRun.Length; i++)
{
// Determine length of current DataRun
long dataRunLength = J.DataRun[i].ClusterLength * VBR.BytesPerCluster;
// Check if usnOffset resides in current DataRun
if (dataRunLength <= usnOffset)
{
// If not, subtract length of DataRun from usnOffset
usnOffset -= dataRunLength;
}
// If usnOffset resides within DataRun, parse associated UsnJrnl Entry
else
{
// Read DataRun from disk
byte[] fragmentBytes = Helper.readDrive(streamToRead, (J.DataRun[i].StartCluster * VBR.BytesPerCluster), (J.DataRun[i].ClusterLength * VBR.BytesPerCluster));
// Instatiate a byte array that is the size of a single cluster
byte[] clusterBytes = new byte[VBR.BytesPerCluster];
// Iterate through the clusters in the DataRun
for (int j = 0; j < J.DataRun[i].ClusterLength; j++)
{
// If usnOffset is not in current cluster, then subtract cluster size from offset and iterate
if (VBR.BytesPerCluster <= usnOffset)
{
usnOffset -= VBR.BytesPerCluster;
}
// Else if usnOffset is in current cluster
else
{
// Copy current cluster bytes to clusterBytes variable
Array.Copy(fragmentBytes, (int)(j * VBR.BytesPerCluster), clusterBytes, 0, clusterBytes.Length);
// Parse desired UsnJrnl entry from cluster
int offset = (int)usnOffset;
return(new UsnJrnl(clusterBytes, volume, ref offset));
}
}
}
}
return(null);
}
else
{
throw new Exception("UsnJrnl entry has has been overwritten");
}
}
