public override PacketData GetBytes(IHeader header, PacketData packetData)
{
var udpHeader = (UdpHeader)header;
var currentData = new List<byte>();
currentData.AddRange(GetBytes(udpHeader.SourcePort));
currentData.AddRange(GetBytes(udpHeader.DestinationPort));
currentData.AddRange(GetBytes((ushort)(UdpHeaderProperty.Size + packetData.Data.Count)));
currentData.AddRange(new byte[]
{
0, 0
});
//+ crc
List<byte> crcData = GetPseudoHeaderBytes(udpHeader, (uint)(packetData.Data.Count + UdpHeaderProperty.Size));
crcData.AddRange(currentData);
crcData.AddRange(packetData.Data);
if (crcData.Count % 2 == 1)
{
crcData.Add(0);
}
byte[] crc = Checksum.GetCrc(crcData.ToArray());
currentData[6] = crc[1];
currentData[7] = crc[0];
//+
currentData.AddRange(packetData.Data);
return packetData.UpdateData(currentData);
}
public override PacketData GetBytes(IHeader header, PacketData packetData)
{
var ipHeader = (IPHeader)header;
var currentData = new List<byte>();
currentData.Add((byte)((ipHeader.VersionIHL << 4) | 5));
currentData.Add(ipHeader.TypeOfService);
//currentData.AddRange(GetBytes((UInt16)(packetData.Data.Count + 20)));
currentData.AddRange(GetBytes(ipHeader.TotalLength));
currentData.AddRange(GetBytes(ipHeader.Identification));
//++ flags (3 bits-- left to right)
//Bit 0: reserved, must be zero
//Bit 1: (DF) 0 = May Fragment, 1 = Don't Fragment.
//Bit 2: (MF) 0 = Last Fragment, 1 = More Fragments.
//++ offset (13 bits)
currentData.AddRange(GetBytes(ipHeader.FlagsFragmentOffset));
currentData.Add(ipHeader.TTL);
currentData.Add(ipHeader.Protocol);
currentData.AddRange(new byte[]
{
0, 0
});
currentData.AddRange(ipHeader.SourceAddress.GetBytes());
currentData.AddRange(ipHeader.DestinationAddress.GetBytes());
byte[] crc = GetCrc(currentData.ToArray());
currentData[10] = crc[1];
currentData[11] = crc[0];
currentData.AddRange(packetData.Data);
return packetData.UpdateData(currentData);
}
public override PacketData GetBytes(IHeader header, PacketData packetData)
{
var imageHeader = (ImageHeader)header;
var currentData = new List<byte>();
currentData.Add(imageHeader.Operation);
currentData.AddRange(imageHeader.Data);
return packetData.UpdateData(currentData);
}
public override PacketData GetBytes(IHeader header, PacketData packetData)
{
var icmpEchoHeader = (IcmpEchoHeader)header;
var currentData = new List<byte>();
currentData.AddRange(GetBytes(icmpEchoHeader.Identifier));
currentData.AddRange(GetBytes(icmpEchoHeader.SequenceNumber));
currentData.AddRange(icmpEchoHeader.Data);
return packetData.UpdateData(currentData);
}
public override PacketData GetBytes(IHeader header, PacketData packetData)
{
var ethernetHeader = (EthernetHeader)header;
var currentData = new List<byte>();
currentData.AddRange(ethernetHeader.Destination.GetBytes());
currentData.AddRange(ethernetHeader.Source.GetBytes());
currentData.AddRange(ethernetHeader.TypeOrLength.GetBytes());
currentData.AddRange(packetData.Data);
return packetData.UpdateData(currentData);
}
public override PacketData GetBytes(IHeader header, PacketData packetData)
{
return packetData;
var ipv6_header = (IPv6Header)header;
var currentData = new List<byte>();
//++ more here
currentData.AddRange(ipv6_header.SourceAddress.GetBytes());
currentData.AddRange(ipv6_header.DestinationAddress.GetBytes());
currentData.AddRange(packetData.Data);
return packetData.UpdateData(currentData);
}
public override PacketData GetBytes(IHeader header, PacketData packetData)
{
var icmpHeader = (IcmpHeader)header;
var currentData = new List<byte>();
currentData.AddRange(GetBytes(icmpHeader.Type));
currentData.AddRange(GetBytes(icmpHeader.Code));
currentData.AddRange(new byte[] { 0, 0 });
currentData.AddRange(packetData.Data);
byte[] crc = Checksum.GetCrc(currentData.ToArray());
currentData[2] = crc[1];
currentData[3] = crc[0];
return packetData.UpdateData(currentData);
}
public override PacketData GetBytes(IHeader header, PacketData packetData)
{
if (!Collection.IsNullOrEmpty(packetData.Data))
{
//TODO: if this becomes iterative, this will have to change
throw new InvalidOperationException("There should never be data after the TLV area of an OSPF LLS data block");
}
var ospfLlsDataBlockTlv = (OspfLlsDataBlockTlv)header;
var currentData = new List<byte>();
currentData.AddRange(GetBytes(ospfLlsDataBlockTlv.Type));
currentData.AddRange(GetBytes(ospfLlsDataBlockTlv.Length));
currentData.AddRange(ospfLlsDataBlockTlv.Value);
return packetData.UpdateData(currentData);
}
public override PacketData GetBytes(IHeader header, PacketData packetData)
{
var ripPreambleHeader = (RipPreambleHeader)header;
var currentData = new List<byte>();
currentData.Add(ripPreambleHeader.command);
currentData.Add(ripPreambleHeader.Version);
currentData.AddRange(GetBytes(ripPreambleHeader.Domain));
foreach (var ripDataHeader in ripPreambleHeader.DataArray)
{
currentData.AddRange(GetBytes(ripDataHeader.AddressFamily));
currentData.AddRange(GetBytes(ripDataHeader.RouteTag));
currentData.AddRange(ripDataHeader.Network.GetBytes());
currentData.AddRange(ripDataHeader.Mask.GetBytes());
currentData.AddRange(ripDataHeader.NextHop.GetBytes());
currentData.AddRange(GetBytes(ripDataHeader.Metric));
}
return packetData.UpdateData(currentData);
}
public override PacketData GetBytes(IHeader header, PacketData packetData)
{
var ospfDBDHeader = (OspfDbdHeader)header;
if (ospfDBDHeader.LsaList != null)
{
foreach (var ospfLsaHeader in ospfDBDHeader.LsaList)
{
packetData = Controller.GetSingletonHandler("OSPFLSA").GetBytes(ospfLsaHeader, packetData);
}
}
var currentData = new List<byte>();
currentData.AddRange(GetBytes(ospfDBDHeader.Mtu));
currentData.AddRange(GetBytes(ospfDBDHeader.Options));
currentData.AddRange(GetBytes(ospfDBDHeader.Flags));
currentData.AddRange(GetBytes(ospfDBDHeader.SequenceNumber));
currentData.AddRange(packetData.Data);
return packetData.UpdateData(currentData);
}
public override PacketData GetBytes(IHeader header, PacketData packetData)
{
var arpHeader = (ArpHeader)header;
var currentData = new List<byte>();
currentData.AddRange(GetBytes(arpHeader.HardwareType));
currentData.AddRange(GetBytes(arpHeader.ProtocolType));
currentData.Add(arpHeader.HardwareSize);
currentData.Add(arpHeader.ProtocolSize);
currentData.AddRange(GetBytes(arpHeader.Operation));
currentData.AddRange(arpHeader.SourceMacAddress.GetBytes());
currentData.AddRange(arpHeader.SourceIPAddress.GetBytes());
currentData.AddRange(arpHeader.DestinationMacAddress.GetBytes());
currentData.AddRange(arpHeader.DestinationIPAddress.GetBytes());
currentData.AddRange(packetData.Data);
return packetData.UpdateData(currentData);
}
public override PacketData GetBytes(IHeader header, PacketData packetData)
{
ushort size = (ushort)packetData.Data.Count;
var ospfLsaHeader = (OspfLsaHeader)header;
var currentData = new List<byte>();
currentData.AddRange(GetBytes(ospfLsaHeader.LSAge));
currentData.AddRange(GetBytes(ospfLsaHeader.Options));
currentData.AddRange(GetBytes(ospfLsaHeader.LSType));
currentData.AddRange(ospfLsaHeader.LSID.GetBytes());
currentData.AddRange(ospfLsaHeader.AdvertisingRouter.GetBytes());
currentData.AddRange(GetBytes(ospfLsaHeader.SequenceNumber));
currentData.AddRange(new byte[] { 0, 0 });
currentData.AddRange(GetBytes((ushort)(20 + size)));
byte[] crc = Nalarium.Checksum.GetCrc(currentData.ToArray());
currentData[16] = crc[1];
currentData[17] = crc[0];
currentData.AddRange(packetData.Data);
return packetData.UpdateData(currentData);
}
public override PacketData GetBytes(IHeader header, PacketData packetData)
{
var ospfHelloHeader = (OspfHelloHeader)header;
var currentData = new List<byte>();
currentData.AddRange(GetNotReversedBytes(ospfHelloHeader.Mask));
currentData.AddRange(GetBytes(ospfHelloHeader.Interval));
currentData.Add(ospfHelloHeader.Options);
currentData.Add(ospfHelloHeader.RouterPriority);
currentData.AddRange(GetBytes(ospfHelloHeader.RouterDeadInterval));
currentData.AddRange(ospfHelloHeader.Dr.GetBytes());
currentData.AddRange(ospfHelloHeader.Bdr.GetBytes());
if (ospfHelloHeader.Neighbor != null)
{
foreach (IPAddress neighbor in ospfHelloHeader.Neighbor)
{
currentData.AddRange(neighbor.GetBytes());
}
}
currentData.AddRange(packetData.Data);
return packetData.UpdateData(currentData);
}
public override PacketData GetBytes(IHeader header, PacketData packetData)
{
var ospfLlsDataBlockHeader = (OspfLlsDataBlockHeader)header;
var currentData = new List<byte>();
currentData.AddRange(new byte[]
{
0, 0
});
var size = (ushort)(packetData.Data.Count + 4);
packetData.AddProperty("OspfLlsDataBlockHeaderSize", size);
currentData.AddRange(GetBytes((ushort)(size / 4)));
byte[] crc = Checksum.GetCrc(currentData.ToArray());
currentData[0] = 0xff;
currentData[1] = 0xf6;
//foreach (var ospfLlsDataBlockTlv in OspfLlsDataBlockHeader.OspfLlsDataBlockTlv)
//{
// var subData = new List<byte>();
// Controller.GetSingletonHandler("OSPFLLSDATABLOCKTLV").GetBytes(ospfLlsDataBlockTlv, subData);
// currentData.AddRange(subData);
//}
currentData.AddRange(packetData.Data);
return packetData.UpdateData(currentData);
}
public override PacketData GetBytes(IHeader header, PacketData packetData)
{
var ospfHeader = (OspfHeader)header;
var currentData = new List<byte>();
currentData.Add(ospfHeader.Version);
currentData.Add(ospfHeader.Type);
byte[] array = GetBytes((UInt16)(packetData.Data.Count + 24 - packetData.GetProperty<ushort>("OspfLlsDataBlockHeaderSize")));
currentData.AddRange(array);
currentData.AddRange(GetNotReversedBytes(ospfHeader.RouterID));
currentData.AddRange(GetBytes(ospfHeader.AreaID));
//currentData.AddRange(new byte[] { 1, 2 });
//currentData.AddRange(new byte[] { 3, 4 });
//currentData.AddRange(new byte[] { 5, 6, 7, 8 });
//currentData.AddRange(new byte[] { 9, 0xa, 0xb, 0xc });
currentData.AddRange(new byte[]
{
0, 0
});
currentData.AddRange(new byte[]
{
0, 0
});
currentData.AddRange(new byte[]
{
0, 0, 0, 0
});
currentData.AddRange(new byte[]
{
0, 0, 0, 0
});
currentData.AddRange(packetData.Data);
byte[] crc = Checksum.GetCrc(currentData.ToArray());
currentData[12] = crc[1];
currentData[13] = crc[0];
return packetData.UpdateData(currentData);
}
