internal static unsafe GenericPartition Create(IntPtr partitionHandle, byte *buffer, uint offset)
{
byte partitionType = buffer[offset + 4];
bool hiddenPartition = false;
bool activePartition = (0x80 == buffer[offset]);
uint startSector = *((uint *)(buffer + offset + 8));
uint sectorsCount = *((uint *)(buffer + offset + 12));
GenericPartition result = null;
// See : https://en.wikipedia.org/wiki/Partition_type
switch (partitionType)
{
case 0x00:
// Empty entry.
return(null);
case 0x07:
// TODO : Consider using a mapping that restrict viewing to the partition content.
result = new NtfsPartition(partitionHandle, hiddenPartition, startSector, sectorsCount);
break;
case 0x17:
// TODO : Should differentiate 0x17 & 0x27
hiddenPartition = true;
goto case 0x07;
case 0x27:
// See https://docs.microsoft.com/en-us/windows/deployment/mbr-to-gpt
// See https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/configure-biosmbr-based-hard-drive-partitions
// See https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/windows-and-gpt-faq
hiddenPartition = true;
goto case 0x07;
default:
Console.WriteLine("unsupported partition type 0x{0:X2}.", partitionType);
return(null);
}
if (null != result)
{
result.Active = activePartition;
}
return(result);
}
