protected virtual void ProcessRequest(byte[] data, UDPListener udpListener, IPEndPoint ipEndPoint, string listenerMAC, string dnsIPv6)
{
string clientIP = ipEndPoint.Address.ToString();
DHCPv6Packet packet = new DHCPv6Packet(data);
if (packet.Message?.MsgType == 1 || packet.Message?.MsgType == 3 || packet.Message?.MsgType == 5)
{
bool isMicrosoft = false;
if (packet.Option16?.EnterpriseNumber == 311)
{
isMicrosoft = true;
}
byte msgType = 0;
string leaseIP = "";
switch (packet.Message.MsgType)
{
case 1:
msgType = 2;
break;
case 3:
{
byte[] renewIP = new DHCPv6Option5(packet.Option3.IANAOptions).IPv6Address;
leaseIP = new IPAddress(renewIP).ToString();
msgType = 7;
}
break;
case 5:
{
byte[] renewIP = new DHCPv6Option5(packet.Option3.IANAOptions).IPv6Address;
leaseIP = new IPAddress(renewIP).ToString();
msgType = 7;
}
break;
}
DHCPv6DUIDLL duid = new DHCPv6DUIDLL(packet.Option1.DUID);
byte[] clientMACData = new DHCPv6DUIDLL(packet.Option1.DUID).LinkLayerAddress;
if (duid.DUIDType == 1)
{
clientMACData = new DHCPv6DUIDLLT(packet.Option1.DUID).LinkLayerAddress;
}
string clientMAC = BitConverter.ToString(clientMACData).Replace("-", ":");
string clientHostName = "";
if (!String.IsNullOrEmpty(packet.Option39?.DomainName))
{
clientHostName = packet.Option39.DomainName;
}
if (Check(clientMAC, clientHostName, listenerMAC, isMicrosoft, out string message))
{
if (msgType == 2)
{
leaseIP = "fe80::" + this.Prefix + ":" + this.Index;
this.Index++;
}
byte[] buffer = new DHCPv6Packet().GetBytes(msgType, leaseIP, listenerMAC, dnsIPv6, this.DNSSuffix, this.Lifetime, packet);
SendTo(buffer, udpListener, ipEndPoint);
}
Output(packet.Message.MsgType, leaseIP, clientIP, clientMAC, clientHostName, message);
}
}
internal static void ProcessDHCPv6Request(byte[] data, string clientIP, int clientPort, string sourceIP, int sourcePort)
{
DHCPv6Packet packet = new DHCPv6Packet(data);
DHCPv6Listener listener = new DHCPv6Listener();
if (packet.Message?.MsgType == 1 || packet.Message?.MsgType == 3 || packet.Message?.MsgType == 5)
{
bool isMicrosoft = false;
if (packet.Option16?.EnterpriseNumber == 311)
{
isMicrosoft = true;
}
byte msgType = 0;
string leaseIP = "";
switch (packet.Message.MsgType)
{
case 1:
msgType = 2;
break;
case 3:
{
byte[] renewIP = new DHCPv6Option5(packet.Option3.IANAOptions).IPv6Address;
leaseIP = new IPAddress(renewIP).ToString();
msgType = 7;
}
break;
case 5:
{
byte[] renewIP = new DHCPv6Option5(packet.Option3.IANAOptions).IPv6Address;
leaseIP = new IPAddress(renewIP).ToString();
msgType = 7;
}
break;
}
DHCPv6DUIDLL duid = new DHCPv6DUIDLL(packet.Option1.DUID);
byte[] clientMACData = new DHCPv6DUIDLL(packet.Option1.DUID).LinkLayerAddress;
if (duid.DUIDType == 1)
{
clientMACData = new DHCPv6DUIDLLT(packet.Option1.DUID).LinkLayerAddress;
}
string clientMAC = BitConverter.ToString(clientMACData).Replace("-", ":");
string clientHostName = "";
if (!String.IsNullOrEmpty(packet.Option39?.DomainName))
{
clientHostName = packet.Option39.DomainName;
}
if (listener.Check(clientMAC, clientHostName, Program.argMAC, isMicrosoft, out string message))
{
if (msgType == 2)
{
leaseIP = "fe80::" + Program.dhcpv6Random + ":" + Program.dhcpv6IPIndex;
Program.dhcpv6IPIndex++;
}
byte[] buffer = new DHCPv6Packet().GetBytes(msgType, leaseIP, Program.argMAC, Program.argSpooferIPv6, Program.argDNSSuffix, uint.Parse(Program.argDHCPv6TTL), packet);
if (!Utilities.ArrayIsNullOrEmpty(buffer))
{
UDPSocket.SendTo(clientIP, clientPort, sourceIP, sourcePort, buffer, false);
}
}
Output.DHCPv6Output(packet.Message.MsgType, leaseIP, clientIP, clientMAC, clientHostName, message);
}
}
