public static void WriteUDPHeader(CircularFrameBuffer cfb, UDPParser up, EthernetParserGenerator ep,
IPv4ParserGenerator ip, byte ports)
{
Emu.Status = 0xff0;
ip.Protocol = 17;
ip.AssembleHeader();
//Emu.PktIn = ip.CalculateCheckSum();
//ip.HeaderChecksum = ip.CalculateCheckSum();
//ip.AssembleHeader();
ep.WriteToBuffer(cfb.PushData);
ip.WriteToBuffer(cfb.PushData, 0);
InterfaceFunctions.SetDestInterface(ports, cfb.PushData);
cfb.PushData.Tkeep = 0xFFFFFFFF;
cfb.PushData.Tlast = false;
Kiwi.Pause();
cfb.Push(cfb.PushData, true);
Emu.Status = 0xff1;
cfb.ResetPeek();
cfb.PushData.Reset();
ip.WriteToBuffer(cfb.PushData, 1);
up.WriteToBuffer(cfb.PushData, (byte)(16 + (ip.IHL - 5) * 32));
cfb.PushData.Tkeep = 0x0000003FF;
cfb.PushData.Tlast = true;
Kiwi.Pause();
cfb.Push(cfb.PushData);
Emu.Status = 0xff2;
}
private static void run()
{
//Test Packet Generation
SetPacketData();
//Generate packet (uses ethernet, ip and udp generator)
HeaderGen.WriteUDPHeader(cfb, up, ep, ip, InterfaceFunctions.PORT_BROADCAST);
//Write Contents of Buffer
cfb.PrintContents();
cfb.ResetPeek();
// Verify Parsed Values
ep.Parse(cfb);
System.Console.WriteLine($"src_mac: {ep.SrcMac:X12} dest_mac: {ep.DestMac:X12} ethertype: {ep.Ethertype:X4}");
ip.Parse(cfb);
System.Console.WriteLine($"version: {ip.Version} IHL: {ip.IHL} DSCP: {ip.DSCP} ECN: {ip.ECN}");
System.Console.WriteLine($"total_length: {ip.TotalLength} id: {ip.Identification} flags: {ip.Flags}");
System.Console.WriteLine($"frag_offset: {ip.FragmentOffset} TTL: {ip.TTL} protocol: {ip.Protocol}");
System.Console.WriteLine($"src_ip: {ip.SrcIp:X8} dest_ip: {ip.DestIp:X8}");
up.Parse(cfb, ip.IHL);
System.Console.WriteLine($"src_port: {up.SrcPort:x4} dest_port: {up.DestPort:x4} length: {up.Length:x4}");
// Verify Interrupts
DebugFunctions.interrupts_enable();
DebugFunctions.push_interrupt(DebugFunctions.Errors.PACKET_DROP);
DebugFunctions.push_interrupt(DebugFunctions.Errors.PARSE_FAIL);
System.Console.WriteLine($"errors: {Emu.Interrupts:X16}");
DebugFunctions.reset_interrupt();
System.Console.WriteLine($"errors: {Emu.Interrupts:X16}");
// Verify Sending Packets
CircularNetworkFunctions.SendOne(cfb, false, true);
System.Console.WriteLine($"data0: {Emu.m_axis_tdata_0:X16}");
System.Console.WriteLine($"data1: {Emu.m_axis_tdata_1:X16}");
System.Console.WriteLine($"data2: {Emu.m_axis_tdata_2:X16}");
System.Console.WriteLine($"data3: {Emu.m_axis_tdata_3:X16}");
CircularNetworkFunctions.SendOne(cfb, false, true);
System.Console.WriteLine($"data0: {Emu.m_axis_tdata_0:X16}");
System.Console.WriteLine($"data1: {Emu.m_axis_tdata_1:X16}");
System.Console.WriteLine($"data2: {Emu.m_axis_tdata_2:X16}");
System.Console.WriteLine($"data3: {Emu.m_axis_tdata_3:X16}");
}