internal override void ParseAttributeNonResidentBody(INTFSInfo ntfsInfo)
{
byte[] data = NtfsUtils.ReadFragments(ntfsInfo, NonResidentHeader.Fragments);
List <IndexAllocationChunk> indexes = new List <IndexAllocationChunk>();
List <IndexEntry> entries = new List <IndexEntry>();
// Parse
for (int i = 0; i < NonResidentHeader.Fragments.Length; i++)
{
for (int j = 0; j < NonResidentHeader.Fragments[i].Clusters; j++)
{
int offset = (int)((NonResidentHeader.Fragments[i].StartingVCN - NonResidentHeader.Fragments[0].StartingVCN) * ntfsInfo.BytesPrCluster + j * ntfsInfo.BytesPrCluster);
if (!IndexAllocationChunk.IsIndexAllocationChunk(data, offset))
{
continue;
}
IndexAllocationChunk index = IndexAllocationChunk.ParseBody(ntfsInfo, data, offset);
indexes.Add(index);
entries.AddRange(index.Entries);
}
}
Indexes = indexes.ToArray();
Entries = entries.ToArray();
}
internal override void ParseAttributeNonResidentBody(INTFSInfo ntfsInfo)
{
base.ParseAttributeNonResidentBody(ntfsInfo);
// Get all chunks
byte[] data = NtfsUtils.ReadFragments(ntfsInfo, NonResidentHeader.Fragments);
// Parse
Debug.Assert(data.Length >= 8);
List <ExtendedAttribute> extendedAttributes = new List <ExtendedAttribute>();
int pointer = 0;
while (pointer + 8 <= data.Length) // 8 is the minimum size of an ExtendedAttribute
{
if (ExtendedAttribute.GetSize(data, pointer) <= 0)
{
break;
}
ExtendedAttribute ea = ExtendedAttribute.ParseData(data, (int)NonResidentHeader.ContentSize, pointer);
extendedAttributes.Add(ea);
pointer += ea.Size;
}
ExtendedAttributes = extendedAttributes.ToArray();
}
public static IndexAllocationChunk ParseBody(INTFSInfo ntfsInfo, byte[] data, int offset)
{
Debug.Assert(data.Length >= 36);
IndexAllocationChunk res = new IndexAllocationChunk();
// Parse
res.Signature = Encoding.ASCII.GetString(data, offset + 0, 4);
Debug.Assert(res.Signature == "INDX");
res.OffsetToUSN = BitConverter.ToUInt16(data, offset + 4);
res.USNSizeWords = BitConverter.ToUInt16(data, offset + 6);
res.LogFileUSN = BitConverter.ToUInt64(data, offset + 8);
res.VCNInIndexAllocation = BitConverter.ToUInt64(data, offset + 16);
res.OffsetToFirstIndex = BitConverter.ToUInt32(data, offset + 24);
res.SizeOfIndexTotal = BitConverter.ToUInt32(data, offset + 28);
res.SizeOfIndexAllocated = BitConverter.ToUInt32(data, offset + 32);
res.HasChildren = data[36];
Debug.Assert(data.Length >= offset + res.OffsetToUSN + 2 + res.USNSizeWords * 2);
res.USNNumber = new byte[2];
Array.Copy(data, offset + res.OffsetToUSN, res.USNNumber, 0, 2);
res.USNData = new byte[res.USNSizeWords * 2 - 2];
Array.Copy(data, offset + res.OffsetToUSN + 2, res.USNData, 0, res.USNData.Length);
// Patch USN Data
NtfsUtils.ApplyUSNPatch(data, offset, (res.SizeOfIndexAllocated + 24) / ntfsInfo.BytesPrSector, (ushort)ntfsInfo.BytesPrSector, res.USNNumber, res.USNData);
Debug.Assert(offset + res.SizeOfIndexTotal <= data.Length);
// Parse entries
List <IndexEntry> entries = new List <IndexEntry>();
int pointer = offset + (int)(res.OffsetToFirstIndex + 24); // Offset is relative to 0x18
while (pointer <= offset + res.SizeOfIndexTotal + 24)
{
IndexEntry entry = IndexEntry.ParseData(data, offset + (int)res.SizeOfIndexTotal - pointer + 24, pointer);
if (entry.Flags.HasFlag(MFTIndexEntryFlags.LastEntry))
{
break;
}
entries.Add(entry);
pointer += entry.Size;
}
res.Entries = entries.ToArray();
return(res);
}
internal override void ParseAttributeNonResidentBody(INTFSInfo ntfsInfo)
{
base.ParseAttributeNonResidentBody(ntfsInfo);
// Get all chunks
byte[] data = NtfsUtils.ReadFragments(ntfsInfo, NonResidentHeader.Fragments);
// Parse
Bitfield = new BitArray(data);
}
public static byte[] ReadFragments(INTFSInfo ntfsInfo, DataFragment[] fragments)
{
int totalLength = (int)(fragments.Sum(s => (decimal)s.Clusters) * ntfsInfo.BytesPrCluster);
byte[] data = new byte[totalLength];
Stream diskStream = ntfsInfo.GetDiskStream();
using (NtfsDiskStream stream = new NtfsDiskStream(diskStream, ntfsInfo.OwnsDiskStream, fragments, ntfsInfo.BytesPrCluster, 0, totalLength))
{
stream.Read(data, 0, data.Length);
}
// Return the data
return(data);
}
private static void PrintRange(INTFSInfo ntfs, Options opts, long start, long count)
{
switch (opts.SizeUnit)
{
case SizeUnit.Bytes:
AwesomeConsole.Write("{0:N0} -> {1:N0}", start * ntfs.BytesPrCluster, (start + count) * ntfs.BytesPrCluster);
break;
case SizeUnit.Sectors:
AwesomeConsole.Write("{0:N0} -> {1:N0}", start * ntfs.SectorsPrCluster, (start + count) * ntfs.SectorsPrCluster);
break;
default:
AwesomeConsole.Write("{0:N0} -> {1:N0}", start, start + count);
break;
}
}
private static void PrintSize(INTFSInfo ntfs, Options opts, long clusters)
{
switch (opts.SizeUnit)
{
case SizeUnit.Bytes:
AwesomeConsole.Write("({0:N0} bytes)", ConsoleColor.DarkGreen, clusters * ntfs.BytesPrCluster);
break;
case SizeUnit.Sectors:
AwesomeConsole.Write("({0:N0} sectors)", ConsoleColor.DarkGreen, clusters * ntfs.SectorsPrCluster);
break;
default:
AwesomeConsole.Write("({0:N0} clusters)", ConsoleColor.DarkGreen, clusters);
break;
}
}
internal override void ParseAttributeNonResidentBody(INTFSInfo ntfsInfo)
{
base.ParseAttributeNonResidentBody(ntfsInfo);
// Get all chunks
byte[] data = NtfsUtils.ReadFragments(ntfsInfo, NonResidentHeader.Fragments);
// Parse
List <AttributeListItem> results = new List <AttributeListItem>();
int pointer = 0;
int contentSize = (int)NonResidentHeader.ContentSize;
while (pointer + 26 <= contentSize) // 26 is the smallest possible MFTAttributeListItem
{
AttributeListItem item = AttributeListItem.ParseListItem(data, data.Length - pointer, pointer);
if (item.Type == AttributeType.EndOfAttributes)
{
break;
}
if (item.Length == 0)
{
break;
}
results.Add(item);
pointer += item.Length;
}
Debug.Assert(pointer == contentSize);
Items = results.ToArray();
}
internal virtual void ParseAttributeNonResidentBody(INTFSInfo ntfsInfo)
{
Debug.Assert(NonResidentFlag == ResidentFlag.NonResident);
Debug.Assert(AllowedResidentStates.HasFlag(AttributeResidentAllow.NonResident));
Debug.Assert(ntfsInfo != null);
}
