public static void MakeValid(TCPPacket tcp, IPVersions ipver)
{
tcp.IPVersion = ipver;
tcp.IPProtocol = Packets.IPProtocol.IPProtocolType.TCP;
tcp.TCPHeaderLength = TCPFields_Fields.TCP_HEADER_LEN; //Set the correct TCP header length
if (ipver == IPVersions.IPv4)
{
// the total length of the ip packet is the size of all of the bytes in the packet
// represented by tcp.Bytes, minus the link layer bytes
// NOTE: this includes the ip header bytes, which is how the IPv4 total bytes
// works
tcp.IPTotalLength = tcp.Bytes.Length - LinkLayer.ProtocolOffset(LinkLayers.Ethernet10Mb); //Set the correct IP length
tcp.IPHeaderLength = IPv4Fields_Fields.IP_HEADER_LEN;
}
else if (ipver == IPVersions.IPv6)
{
tcp.IPPayloadLength = tcp.Bytes.Length - EthernetFields_Fields.ETH_HEADER_LEN - IPv6Fields_Fields.IPv6_HEADER_LEN;
}
else
{
throw new System.InvalidOperationException("unknown ipver of " + ipver);
}
//Calculate checksums
tcp.ComputeIPChecksum();
tcp.ComputeTCPChecksum();
}
public static void MakeValid(TCPPacket tcp, IPVersions ipver)
{
tcp.IPVersion = ipver;
tcp.IPProtocol = Packets.IPProtocol.IPProtocolType.TCP;
tcp.TCPHeaderLength = TCPFields_Fields.TCP_HEADER_LEN; //Set the correct TCP header length
if (ipver == IPVersions.IPv4)
{
tcp.IPTotalLength = tcp.Bytes.Length - 14; //Set the correct IP length
tcp.IPHeaderLength = IPv4Fields_Fields.IP_HEADER_LEN;
}
else if (ipver == IPVersions.IPv6)
{
tcp.IPPayloadLength = tcp.Bytes.Length - EthernetFields_Fields.ETH_HEADER_LEN - IPv6Fields_Fields.IPv6_HEADER_LEN;
}
else
{
}
//Calculate checksums
tcp.ComputeIPChecksum();
tcp.ComputeTCPChecksum();
}
public static void MakeValid(TCPPacket tcp, IPVersions ipver)
{
tcp.IPVersion = ipver;
tcp.IPProtocol = Packets.IPProtocol.IPProtocolType.TCP;
tcp.TCPHeaderLength = TCPFields_Fields.TCP_HEADER_LEN; //Set the correct TCP header length
if (ipver == IPVersions.IPv4)
{
// the total length of the ip packet is the size of all of the bytes in the packet
// represented by tcp.Bytes, minus the link layer bytes
// NOTE: this includes the ip header bytes, which is how the IPv4 total bytes
// works
tcp.IPTotalLength = tcp.Bytes.Length - LinkLayer.ProtocolOffset(LinkLayers.Ethernet10Mb); //Set the correct IP length
tcp.IPHeaderLength = IPv4Fields_Fields.IP_HEADER_LEN;
}
else if (ipver == IPVersions.IPv6)
{
tcp.IPPayloadLength = tcp.Bytes.Length - EthernetFields_Fields.ETH_HEADER_LEN - IPv6Fields_Fields.IPv6_HEADER_LEN;
}
else
{
throw new System.InvalidOperationException("unknown ipver of " + ipver);
}
//Calculate checksums
tcp.ComputeIPChecksum();
tcp.ComputeTCPChecksum();
}
public static void MakeValid(TCPPacket tcp, IPVersions ipver)
{
tcp.IPVersion = ipver;
tcp.IPProtocol = Packets.IPProtocol.IPProtocolType.TCP;
tcp.TCPHeaderLength = TCPFields_Fields.TCP_HEADER_LEN; //Set the correct TCP header length
if (ipver == IPVersions.IPv4)
{
tcp.IPTotalLength = tcp.Bytes.Length - 14; //Set the correct IP length
tcp.IPHeaderLength = IPv4Fields_Fields.IP_HEADER_LEN;
}
else if (ipver == IPVersions.IPv6)
{
tcp.IPPayloadLength = tcp.Bytes.Length - EthernetFields_Fields.ETH_HEADER_LEN - IPv6Fields_Fields.IPv6_HEADER_LEN;
}
else
{
}
//Calculate checksums
tcp.ComputeIPChecksum();
tcp.ComputeTCPChecksum();
}