internal static GuidPartitionTableEntry[] GetInstances(byte[] bytes, uint partitionCount, uint partitionSize)
{
// Get PartitionTable
List <GuidPartitionTableEntry> partitionList = new List <GuidPartitionTableEntry>();
// Iterate through Partition Entries
for (int i = GuidPartitionTable.SECTOR_SIZE; i < bytes.Length; i += (int)partitionSize)
{
// Instantiate a GuidPartitionTableEntry object
GuidPartitionTableEntry entry = new GuidPartitionTableEntry(bytes, i);
// If entry's StartingLBA is 0 then it is not a partition
if (entry.StartingLBA == 0)
{
break;
}
partitionList.Add(entry);
}
return(partitionList.ToArray());
}
private GuidPartitionTable(string devicePath)
{
byte[] bytes = GuidPartitionTable.GetBytes(devicePath);
// Test GPT Signature
Signature = Encoding.ASCII.GetString(bytes, 0x00, 0x08);
if (Signature == SIGNATURE_STRING)
{
Revision = new Version(BitConverter.ToUInt16(bytes, 0x08), BitConverter.ToUInt16(bytes, 0x0A));
HeaderSize = BitConverter.ToUInt32(bytes, 0x0C);
// Get HeaderCRC32 Value
#region MyLBA
MyLBA = BitConverter.ToUInt64(bytes, 0x18);
if (MyLBA != 1)
{
throw new Exception("Invalid MyLBA property value");
}
#endregion MyLBA
AlternateLBA = BitConverter.ToUInt64(bytes, 0x20);
FirstUsableLBA = BitConverter.ToUInt64(bytes, 0x28);
LastUsableLBA = BitConverter.ToUInt64(bytes, 0x30);
DiskGuid = new Guid(Helper.GetSubArray(bytes, 0x38, 0x10));
PartitionEntryLBA = BitConverter.ToUInt64(bytes, 0x48);
NumberOfPartitionEntries = BitConverter.ToUInt32(bytes, 0x50);
SizeOfPartitionEntry = BitConverter.ToUInt32(bytes, 0x54);
// Get PartitionEntryArrayCRC32 Value
}
else
{
throw new Exception("Invalid GPT Signature");
}
PartitionTable = GuidPartitionTableEntry.GetInstances(bytes, NumberOfPartitionEntries, SizeOfPartitionEntry);
}