internal static DHCPv6RelayPacket FromByteArray(byte[] rawData, int offset)
{
DHCPv6PacketTypes type = (DHCPv6PacketTypes)rawData[offset];
offset += 1;
Byte hopCount = rawData[offset];
offset += 1;
IPv6Address linkAddress = IPv6Address.FromByteArray(rawData, offset);
offset += 16;
IPv6Address peerAddress = IPv6Address.FromByteArray(rawData, offset);
offset += 16;
List <DHCPv6PacketOption> options = new List <DHCPv6PacketOption>();
Byte[] innerPacketOptionValue = null;
Int32 byteIndex = offset;
while (byteIndex < rawData.Length)
{
UInt16 optionCode = ByteHelper.ConvertToUInt16FromByte(rawData, byteIndex);
UInt16 length = ByteHelper.ConvertToUInt16FromByte(rawData, byteIndex + 2);
Byte[] optionData = ByteHelper.CopyData(rawData, byteIndex, length + 4);
if (optionCode == (Byte)DHCPv6PacketOptionTypes.RelayMessage)
{
innerPacketOptionValue = ByteHelper.CopyData(optionData, 4);
}
else
{
DHCPv6PacketOption suboption = DHCPv6PacketOptionFactory.GetOption(optionCode, optionData);
options.Add(suboption);
}
byteIndex += 4 + length;
}
return(new DHCPv6RelayPacket(
type,
hopCount,
linkAddress, peerAddress,
options,
DHCPv6Packet.FromByteArray(innerPacketOptionValue)));
}
protected static DHCPv6Packet FromByteArray(Byte[] rawData)
{
DHCPv6PacketTypes type = (DHCPv6PacketTypes)rawData[0];
DHCPv6Packet result;
if (type == DHCPv6PacketTypes.RELAY_REPL || type == DHCPv6PacketTypes.RELAY_FORW)
{
result = DHCPv6RelayPacket.FromByteArray(rawData, 0);
}
else
{
UInt32 transactionId = (UInt32)((rawData[1] << 16) | (rawData[2] << 8) | rawData[3]);
result = new DHCPv6Packet(
type, transactionId,
DHCPv6PacketOptionFactory.GetOptions(rawData, 4));
}
return(result);
}
