public void ReadFromBitStream(ReadOnlyBitStream bitStream)
{
bool isBigEndian = bitStream.IsBigEndian();
bitStream.SetBigEndian(true);
version = bitStream.ReadNibble();
headerLength = bitStream.ReadNibble();
headerLength *= 4;
dsf = bitStream.ReadByte();
totalLength = bitStream.ReadUInt16();
identifier = bitStream.ReadUInt16();
flags = bitStream.ReadUInt16();
ttl = bitStream.ReadByte();
protocol = bitStream.ReadByte();
headerChecksum = bitStream.ReadUInt16();
source = bitStream.ReadBytes(4);
destination = bitStream.ReadBytes(4);
bitStream.SetBigEndian(isBigEndian);
if (protocol == 17)
{
datagram = new Datagram();
datagram.ReadFromBitStream(bitStream);
}
else
{
bitStream.ReadBytes(totalLength - headerLength); // Skip if not UDP.
}
}