public override bool send(IPPayload payload)
{
DeathClock.Restart();
UDP udp = (UDP)payload;
if (DestPort != 0)
{
if (!(udp.DestinationPort == DestPort && udp.SourcePort == SrcPort))
{
Console.Error.WriteLine("UDP packet invalid for current session (Duplicate key?)");
return(false);
}
}
else
{
DestPort = udp.DestinationPort;
SrcPort = udp.SourcePort;
if (Utils.memcmp(DestIP, 0, UDP_DHCPsession.BROADCAST, 0, 4))
{
isBroadcast = true;
}
if (isBroadcast)
{
Console.Error.WriteLine("Is Broadcast");
client = new UdpClient(SrcPort); //Assuming broadcast wants a return message
client.EnableBroadcast = true;
//client.Close();
//client = new UdpClient(SrcPort);
//client.BeginReceive(ReceiveFromBroadcast, new object());
open = true;
}
else
{
IPAddress address = new IPAddress(DestIP);
if (SrcPort == DestPort)
{
client = new UdpClient(SrcPort); //Needed for Crash TTR (and probable other games) LAN
}
else
{
client = new UdpClient();
}
client.Connect(address, DestPort); //address to send on
if (SrcPort != 0)
{
//Console.Error.WriteLine("UDP expects Data");
open = true;
}
}
}
if (isBroadcast)
{
client.Send(udp.GetPayload(), udp.GetPayload().Length, new IPEndPoint(IPAddress.Broadcast, DestPort));
}
else
{
client.Send(udp.GetPayload(), udp.GetPayload().Length);
}
//Console.Error.WriteLine("UDP Sent");
return(true);
}
public override bool Send(IPPayload payload)
{
lock (deathClock)
{
deathClock.Restart();
}
UDP udp = (UDP)payload;
if (destPort != 0)
{
//client already created
if (!(udp.DestinationPort == destPort && udp.SourcePort == srcPort))
{
Log_Error("UDP packet invalid for current session (Duplicate key?)");
return(false);
}
}
else
{
//create client
destPort = udp.DestinationPort;
srcPort = udp.SourcePort;
//Multicast address start with 0b1110
if ((DestIP[0] & 0xF0) == 0xE0)
{
isMulticast = true;
}
client = new UdpClient();
client.Client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
client.Client.Bind(new IPEndPoint(adapterIP, 0));
//needs testing
if (isMulticast)
{
Log_Info("Is Multicast");
//client.JoinMulticastGroup(address);
}
else
{
IPAddress address = new IPAddress(DestIP);
client.Connect(address, destPort);
}
if (srcPort != 0)
{
open = true;
}
}
if (destPort == 53)
{
Log_Info("DNS Packet Sent To " + new IPAddress(DestIP));
Log_Info("Contents");
PacketReader.DNS.DNS pDNS = new PacketReader.DNS.DNS(udp.GetPayload());
}
if (isBroadcast)
{
client.Send(udp.GetPayload(), udp.GetPayload().Length, new IPEndPoint(IPAddress.Broadcast, destPort));
}
else if (isMulticast | isFixedPort)
{
client.Send(udp.GetPayload(), udp.GetPayload().Length, new IPEndPoint(new IPAddress(DestIP), destPort));
}
else if (isFixedPort)
{
client.Send(udp.GetPayload(), udp.GetPayload().Length);
}
else
{
//As fair as I know,
//this won't throw a 10061 Connection refused or 10054 Connection reset
//under any probable event on windows (As much as I've tried)
//Yet it can throw 10061 on linux
try
{
client.Send(udp.GetPayload(), udp.GetPayload().Length);
}
catch (SocketException err)
{
if (!hasRetryed)
{
Log_Error("UDP Send Error: " + err.Message);
Log_Error("Error Code: " + err.ErrorCode);
Log_Error("Hiding further errors from this connection");
hasRetryed = true;
}
client.Close();
//recreate UDP client
IPAddress address = new IPAddress(DestIP);
client = new UdpClient();
client.Client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
client.Client.Bind(new IPEndPoint(adapterIP, 0));
client.Connect(address, destPort);
//And retry sending
client.Send(udp.GetPayload(), udp.GetPayload().Length);
}
}
if (srcPort == 0)
{
RaiseEventConnectionClosed();
}
return(true);
}
public override bool Send(IPPayload payload)
{
lock (deathClock)
{
deathClock.Restart();
}
UDP udp = (UDP)payload;
if (destPort != 0)
{
//client already created
if (!(udp.DestinationPort == destPort && udp.SourcePort == srcPort))
{
Log_Error("UDP packet invalid for current session (Duplicate key?)");
return(false);
}
}
else
{
//create client
destPort = udp.DestinationPort;
srcPort = udp.SourcePort;
//Multicast address start with 0b1110
if ((DestIP[0] & 0xF0) == 0xE0)
{
isMulticast = true;
}
//needs testing
if (isMulticast)
{
Log_Info("Is Multicast");
client = new UdpClient(new IPEndPoint(adapterIP, 0));
//client.JoinMulticastGroup(address);
}
else
{
IPAddress address = new IPAddress(DestIP);
client = new UdpClient(new IPEndPoint(adapterIP, 0));
client.Connect(address, destPort);
}
if (srcPort != 0)
{
open = true;
}
}
if (destPort == 53)
{
Log_Info("DNS Packet Sent To " + new IPAddress(DestIP));
Log_Info("Contents");
PacketReader.DNS.DNS pDNS = new PacketReader.DNS.DNS(udp.GetPayload());
}
if (isBroadcast)
{
client.Send(udp.GetPayload(), udp.GetPayload().Length, new IPEndPoint(IPAddress.Broadcast, destPort));
}
else if (isMulticast | isFixedPort)
{
client.Send(udp.GetPayload(), udp.GetPayload().Length, new IPEndPoint(new IPAddress(DestIP), destPort));
}
else
{
client.Send(udp.GetPayload(), udp.GetPayload().Length);
}
if (srcPort == 0)
{
RaiseEventConnectionClosed();
}
return(true);
}
