public TcpHeader(IPHeader ipHeader)
{
IpHeader = ipHeader;
byte[] buffer = IpHeader.Data;
using (MemoryStream memoryStream = new MemoryStream(buffer))
{
using (BinaryReader binaryReader = new BinaryReader(memoryStream))
{
SourcePort = (ushort)IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
DestinationPort = (ushort)IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
SequenceNumber = (uint)IPAddress.NetworkToHostOrder(binaryReader.ReadInt32());
_uiAcknowledgementNumber = (uint)IPAddress.NetworkToHostOrder(binaryReader.ReadInt32());
_usDataOffsetAndFlags = (ushort)IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
WindowSize = (ushort)IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
Checksum = (short)IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
_usUrgentPointer = (ushort)IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
HeaderLength = (byte)(_usDataOffsetAndFlags >> 12);
HeaderLength *= 4;
MessageLength = buffer.Length - HeaderLength;
}
}
// Data = new ArraySegment<byte>(buffer.Array, buffer.Offset + HeaderLength, MessageLength);
byte[] data = new byte[MessageLength];
Array.Copy(buffer, HeaderLength, data, 0, MessageLength);
Data = data;
}
void rec(byte[] data, int length)
{
IPHeader ipHeader = new IPHeader(data, length);
IPacket packet = ipHeader.ParseData();
if (OnPacket != null)
OnPacket(ipHeader.ProtocolType, packet);
if (OnTcpStream != null && ipHeader.ProtocolType == ProtocolType.Tcp)
{
TcpHeader tcp = (TcpHeader)packet;
if ((_Filter == null || _Filter.AllowTcpPacket(tcp)))
{
TcpStream stream = TcpStream.GetStream(_TcpStreams, tcp);
if (stream != null)
{
if (stream.IsClossed)
_TcpStreams.Remove(stream);
OnTcpStream(stream);
}
}
}
Receive();
}
public TcpHeader(IPHeader ipHeader)
{
IpHeader = ipHeader;
byte[] buffer = IpHeader.Data;
using (MemoryStream memoryStream = new MemoryStream(buffer))
{
using (BinaryReader binaryReader = new BinaryReader(memoryStream))
{
SourcePort = (ushort)IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
DestinationPort = (ushort)IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
SequenceNumber = (uint)IPAddress.NetworkToHostOrder(binaryReader.ReadInt32());
_uiAcknowledgementNumber = (uint)IPAddress.NetworkToHostOrder(binaryReader.ReadInt32());
_usDataOffsetAndFlags = (ushort)IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
WindowSize = (ushort)IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
Checksum = (short)IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
_usUrgentPointer = (ushort)IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
HeaderLength = (byte)(_usDataOffsetAndFlags >> 12);
HeaderLength *= 4;
MessageLength = buffer.Length - HeaderLength;
}
}
// Data = new ArraySegment<byte>(buffer.Array, buffer.Offset + HeaderLength, MessageLength);
byte[] data = new byte[MessageLength];
Array.Copy(buffer, HeaderLength, data, 0, MessageLength);
Data = data;
}
public UdpHeader(IPHeader ipHeader)
{
IpHeader = ipHeader;
byte[] buffer = IpHeader.Data;
using (MemoryStream memoryStream = new MemoryStream(buffer))
{
using (BinaryReader binaryReader = new BinaryReader(memoryStream))
{
SourcePort = (ushort)IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
DestinationPort = (ushort)IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
Length = (ushort)IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
Checksum = IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
}
}
byte[] data = new byte[buffer.Length - 8];
Array.Copy(buffer, 8, data, 0, data.Length);
Data = data;
//Data = new ArraySegment<byte>(buffer.Array, buffer.Offset + 8, buffer.Count - 8);
}
public UdpHeader(IPHeader ipHeader)
{
IpHeader = ipHeader;
byte[] buffer = IpHeader.Data;
using (MemoryStream memoryStream = new MemoryStream(buffer))
{
using (BinaryReader binaryReader = new BinaryReader(memoryStream))
{
SourcePort = (ushort)IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
DestinationPort = (ushort)IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
Length = (ushort)IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
Checksum = IPAddress.NetworkToHostOrder(binaryReader.ReadInt16());
}
}
byte[] data = new byte[buffer.Length - 8];
Array.Copy(buffer, 8, data, 0, data.Length);
Data = data;
//Data = new ArraySegment<byte>(buffer.Array, buffer.Offset + 8, buffer.Count - 8);
}
