/// <summary>
///
/// </summary>
/// <param name="addr"></param>
/// <param name="endPoint"></param>
/// <param name="buf"></param>
private void SendPacket(PhysicalAddress addr, IPEndPoint endPoint, byte[] buf)
{
HandshakeHeader header = new HandshakeHeader();
header.CheckSum = PacketCRC(buf, buf.Length);
header.DataLength = (ushort)buf.Length;
header.MacAddr = addr.GetAddressBytes();
// compress data
byte[] compressedData = ZStream.CompressBuffer(buf);
header.CompressedLength = (ushort)compressedData.Length;
header.Length = (ushort)(header.Size + header.CompressedLength);
// build final payload
byte[] buffer = new byte[Util.RoundUp(header.Size + header.CompressedLength, 4)];
header.WriteTo(buffer, 0);
Array.Copy(compressedData, 0, buffer, header.Size, compressedData.Length);
if (Program.foreground && Program.debug)
{
if (buf != null)
{
Console.WriteLine("[SNIP .. Packet Tx to Client]");
Util.TraceHex("hdr", buffer, header.Size);
if (buf != null)
{
Util.TraceHex("packet", buf, buf.Length);
Console.WriteLine("packet length " + buf.Length);
}
Console.WriteLine("hdr->checksum = " + header.CheckSum.ToString("X"));
Console.WriteLine("hdr->length = " + header.Length.ToString());
Console.WriteLine("hdr->macAddr = " +
header.MacAddr[0].ToString("X") + ":" +
header.MacAddr[1].ToString("X") + ":" +
header.MacAddr[2].ToString("X") + ":" +
header.MacAddr[3].ToString("X") + ":" +
header.MacAddr[4].ToString("X") + ":" +
header.MacAddr[5].ToString("X"));
Console.WriteLine("hdr->dataLength = " + header.DataLength);
Console.WriteLine("hdr->compressLength = " + header.CompressedLength);
Console.WriteLine("[SNIP .. Packet Tx to Client]");
}
}
socket.SendTo(buffer, endPoint);
}
/// <summary>
///
/// </summary>
/// <param name="packet"></param>
private void HandleIncoming(EthernetPacket packet)
{
if (isShutdown)
{
return;
}
if (client == null)
{
return;
}
if (!client.Connected)
{
return;
}
// is this our mac?
if (PhysicalAddress.ToString() != packet.DestinationHwAddress.ToString())
{
return;
}
#if TRACE
Messages.Trace("session [" + PhysicalAddress.ToString() + "] destHW [" + packet.DestinationHwAddress.ToString() + "]");
Messages.Trace("packet dump " + packet.ToString());
#endif
HandshakeHeader header = new HandshakeHeader();
header.CRC = PacketCRC(packet.Bytes, packet.Bytes.Length);
header.DataLength = (ushort)packet.Bytes.Length;
header.MacAddr = this.macAddress;
// compress data
byte[] compressedData = ZStream.CompressBuffer(packet.Bytes);
header.CompressedLength = (ushort)compressedData.Length;
header.Length = (ushort)(header.Size + header.CompressedLength);
// build final payload
byte[] buffer = new byte[Util.RoundUp(header.Size + header.CompressedLength, 4)];
header.WriteTo(buffer, 0);
Array.Copy(compressedData, 0, buffer, header.Size, compressedData.Length);
#if TRACE
Messages.Trace("Source HW Addr [" + packet.SourceHwAddress.ToString() + "]");
Messages.Trace("Dest HW Addr [" + packet.DestinationHwAddress.ToString() + "]");
if (packet != null)
{
Messages.Trace("[SNIP .. Packet Tx to Client]");
Messages.TraceHex("hdr", buffer, header.Size);
Messages.Trace("hdr->checksum = " + header.CRC.ToString("X"));
Messages.Trace("hdr->length = " + header.Length.ToString());
Messages.Trace("hdr->macAddr = " +
header.MacAddr[0].ToString("X") + ":" +
header.MacAddr[1].ToString("X") + ":" +
header.MacAddr[2].ToString("X") + ":" +
header.MacAddr[3].ToString("X") + ":" +
header.MacAddr[4].ToString("X") + ":" +
header.MacAddr[5].ToString("X"));
Messages.Trace("hdr->dataLength = " + header.DataLength);
Messages.Trace("hdr->compressLength = " + header.CompressedLength);
Messages.Trace("hdr length " + header.Length);
if (packet.Bytes != null)
{
Messages.TraceHex("frame", packet.Bytes, packet.Bytes.Length);
Messages.Trace("frame length " + packet.Bytes.Length);
}
Messages.Trace("[SNIP .. Packet Tx to Client]");
}
#endif
// transmit
if (Stream.CanWrite)
{
Stream.Flush();
Stream.Write(buffer, 0, buffer.Length);
Stream.Flush();
}
}
/// <summary>
///
/// </summary>
/// <param name="pdu"></param>
public void HandleIncoming(ProtocolDataUnit pdu)
{
if (isShutdown)
{
return;
}
if (client == null)
{
return;
}
if (!client.Connected)
{
return;
}
#if TRACE
if (pdu != null)
{
Messages.Trace("[SNIP .. Packet Tx To " + PhysicalAddress.ToString() + "]");
Messages.TraceHex("hdr", pdu.HeaderData, pdu.HeaderData.Length);
Messages.Trace("hdr->checksum = " + pdu.Header.CRC.ToString("X"));
Messages.Trace("hdr->length = " + pdu.Header.Length.ToString());
Messages.Trace("hdr->macAddr = " +
pdu.Header.MacAddr[0].ToString("X") + ":" +
pdu.Header.MacAddr[1].ToString("X") + ":" +
pdu.Header.MacAddr[2].ToString("X") + ":" +
pdu.Header.MacAddr[3].ToString("X") + ":" +
pdu.Header.MacAddr[4].ToString("X") + ":" +
pdu.Header.MacAddr[5].ToString("X"));
Messages.Trace("hdr->dataLength = " + pdu.Header.DataLength);
Messages.Trace("hdr->compressLength = " + pdu.Header.CompressedLength);
Messages.Trace("hdr length " + pdu.Header.Length);
if (pdu.ContentData != null)
{
Messages.TraceHex("frame", pdu.ContentData, pdu.ContentData.Length);
Messages.Trace("frame length " + pdu.ContentData.Length);
Messages.Trace("MAC Destination = " +
pdu.ContentData[0].ToString("X") + ":" +
pdu.ContentData[1].ToString("X") + ":" +
pdu.ContentData[2].ToString("X") + ":" +
pdu.ContentData[3].ToString("X") + ":" +
pdu.ContentData[4].ToString("X") + ":" +
pdu.ContentData[5].ToString("X"));
Messages.Trace("MAC Source = " +
pdu.ContentData[6].ToString("X") + ":" +
pdu.ContentData[7].ToString("X") + ":" +
pdu.ContentData[8].ToString("X") + ":" +
pdu.ContentData[9].ToString("X") + ":" +
pdu.ContentData[10].ToString("X") + ":" +
pdu.ContentData[11].ToString("X"));
}
Messages.Trace("[SNIP .. Packet Tx To " + PhysicalAddress.ToString() + "]");
}
#endif
// repackage data
HandshakeHeader header = new HandshakeHeader();
header.CRC = PacketCRC(pdu.ContentData, pdu.ContentData.Length);
header.DataLength = (ushort)pdu.ContentData.Length;
header.MacAddr = pdu.Header.MacAddr;
// compress data
byte[] compressedData = ZStream.CompressBuffer(pdu.ContentData);
header.CompressedLength = (ushort)compressedData.Length;
header.Length = (ushort)(header.Size + header.CompressedLength);
// build final payload
byte[] buffer = new byte[Util.RoundUp(header.Size + header.CompressedLength, 4)];
header.WriteTo(buffer, 0);
Array.Copy(compressedData, 0, buffer, header.Size, compressedData.Length);
// transmit
if (client.Connected)
{
if (Stream.CanWrite)
{
Stream.Flush();
Stream.Write(buffer, 0, buffer.Length);
Stream.Flush();
}
}
}
