/// <inheritdoc />
public int ReadFrom(byte[] buffer, int offset)
{
Label = EndianUtilities.BytesToString(buffer, offset, 0x8);
Sector = EndianUtilities.ToUInt64LittleEndian(buffer, offset + 0x8);
Crc = EndianUtilities.ToUInt32LittleEndian(buffer, offset + 0x10);
CalculatedCrc = PhysicalVolume.CalcCrc(buffer, offset + 0x14, PhysicalVolume.SECTOR_SIZE - 0x14);
Offset = EndianUtilities.ToUInt32LittleEndian(buffer, offset + 0x14);
Label2 = EndianUtilities.BytesToString(buffer, offset + 0x18, 0x8);
return(Size);
}
/// <inheritdoc />
public int ReadFrom(byte[] buffer, int offset)
{
Crc = Utilities.ToUInt32LittleEndian(buffer, offset);
CalculatedCrc = PhysicalVolume.CalcCrc(buffer, offset + 0x4, PhysicalVolume.SECTOR_SIZE - 0x4);
Magic = Utilities.BytesToString(buffer, offset + 0x4, 0x10);
Version = Utilities.ToUInt32LittleEndian(buffer, offset + 0x14);
Start = Utilities.ToUInt64LittleEndian(buffer, offset + 0x18);
Length = Utilities.ToUInt64LittleEndian(buffer, offset + 0x20);
var locations = new List <RawLocation>();
var locationOffset = offset + 0x28;
while (true)
{
var location = new RawLocation();
locationOffset += location.ReadFrom(buffer, locationOffset);
if (location.Offset == 0 && location.Length == 0 && location.Checksum == 0 && location.Flags == 0)
{
break;
}
locations.Add(location);
}
RawLocations = locations.ToArray();
foreach (var location in RawLocations)
{
if ((location.Flags & RawLocationFlags.Ignored) != 0)
{
continue;
}
var checksum = PhysicalVolume.CalcCrc(buffer, (int)location.Offset, (int)location.Length);
if (location.Checksum != checksum)
{
throw new IOException("invalid metadata checksum");
}
Metadata = Utilities.BytesToString(buffer, (int)location.Offset, (int)location.Length);
ParsedMetadata = Lvm.Metadata.Parse(Metadata);
break;
}
return(Size);
}