// udp
public void VerifyPacket2(Packet p)
{
Console.WriteLine(p.ToString());
EthernetPacket e = (EthernetPacket)p;
Assert.AreEqual("00:14:bf:f2:ef:0a", e.SourceHwAddress);
Assert.AreEqual("00:16:cf:c9:1e:29", e.DestinationHwAddress);
IPPacket ip = (IPPacket)p;
Assert.AreEqual(System.Net.IPAddress.Parse("172.210.164.56"), ip.SourceAddress);
Assert.AreEqual(System.Net.IPAddress.Parse("192.168.1.104"), ip.DestinationAddress);
Assert.AreEqual(IPPacket.IPVersions.IPv4, ip.IPVersion);
Assert.AreEqual(IPProtocol.IPProtocolType.UDP, ip.IPProtocol);
Assert.AreEqual(112, ip.TimeToLive);
Assert.AreEqual(0xe0a2, ip.ComputeIPChecksum());
Assert.AreEqual(1171483602, ip.Timeval.Seconds);
Assert.AreEqual(578641.000, ip.Timeval.MicroSeconds);
UDPPacket udp = (UDPPacket)(p);
Assert.AreEqual(52886, udp.SourcePort);
Assert.AreEqual(56924, udp.DestinationPort);
Assert.AreEqual(71, udp.UDPLength);
Assert.AreEqual(0xe0a2, udp.ComputeIPChecksum());
Assert.AreEqual(0xc8b8, udp.UDPChecksum);
Assert.AreEqual(0xc8b8, udp.Checksum);
}
// tcp
public void VerifyPacket1(Packet p)
{
Console.WriteLine(p.ToString());
EthernetPacket e = (EthernetPacket)p;
Assert.AreEqual("00:16:cf:c9:1e:29", e.SourceHwAddress);
Assert.AreEqual("00:14:bf:f2:ef:0a", e.DestinationHwAddress);
IPPacket ip = (IPPacket)p;
Assert.AreEqual(System.Net.IPAddress.Parse("192.168.1.104"), ip.SourceAddress);
Assert.AreEqual(System.Net.IPAddress.Parse("86.42.196.13"), ip.DestinationAddress);
Assert.AreEqual(64, ip.TimeToLive);
Assert.AreEqual(0x2ff4, ip.ComputeIPChecksum());
Assert.AreEqual(1171483600, ip.Timeval.Seconds);
Assert.AreEqual(125234.000, ip.Timeval.MicroSeconds);
TCPPacket tcp = (TCPPacket)(p);
Assert.AreEqual(56925, tcp.SourcePort);
Assert.AreEqual(50199, tcp.DestinationPort);
Assert.IsTrue(tcp.Ack);
Assert.IsTrue(tcp.Psh);
Assert.AreEqual(16666, tcp.WindowSize);
Assert.AreEqual(0x2ff4, tcp.ComputeIPChecksum());
Assert.AreEqual(0x9b02, tcp.ComputeTCPChecksum());
Assert.AreEqual(0x9b02, tcp.Checksum);
Assert.IsTrue(tcp.ValidTCPChecksum);
}
// tcp
public void VerifyPacket0(Packet p)
{
Console.WriteLine(p.ToString());
EthernetPacket e = (EthernetPacket)p;
Assert.AreEqual(PhysicalAddress.Parse("00-13-10-03-71-47"), e.SourceHwAddress);
Assert.AreEqual(PhysicalAddress.Parse("00-E0-4C-E5-73-AD"), e.DestinationHwAddress);
IPPacket ip = (IPPacket)p;
Assert.AreEqual(System.Net.IPAddress.Parse("82.165.240.134"), ip.SourceAddress);
Assert.AreEqual(System.Net.IPAddress.Parse("192.168.1.221"), ip.DestinationAddress);
Assert.AreEqual(IPPacket.IPVersions.IPv4, ip.IPVersion);
Assert.AreEqual(IPProtocol.IPProtocolType.TCP, ip.IPProtocol);
Assert.AreEqual(254, ip.TimeToLive);
Assert.AreEqual(0x0df8, ip.ComputeIPChecksum());
Assert.AreEqual(1176685346, ip.Timeval.Seconds);
Assert.AreEqual(885259.000, ip.Timeval.MicroSeconds);
TCPPacket tcp = (TCPPacket)(p);
Assert.AreEqual(80, tcp.SourcePort);
Assert.AreEqual(4324, tcp.DestinationPort);
Assert.IsTrue(tcp.Ack);
Assert.AreEqual(3536, tcp.WindowSize);
Assert.AreEqual(0x0df8, tcp.ComputeIPChecksum());
Assert.AreEqual(0xc835, tcp.ComputeTCPChecksum());
Assert.AreEqual(0xc835, tcp.Checksum);
Assert.IsTrue(tcp.ValidTCPChecksum);
}
private static void device_PcapOnPacketArrival(object sender, PcapCaptureEventArgs e)
{
if (e.Packet is EthernetPacket)
{
EthernetPacket eth = ((EthernetPacket)e.Packet);
Console.WriteLine("Original Eth packet: " + eth.ToColoredString(false));
//Manipulate ethernet parameters
eth.SourceHwAddress = PhysicalAddress.Parse("00-11-22-33-44-55");
eth.DestinationHwAddress = PhysicalAddress.Parse("00-99-88-77-66-55");
if (e.Packet is IPPacket)
{
IPPacket ip = ((IPPacket)e.Packet);
Console.WriteLine("Original IP packet: " + ip.ToColoredString(false));
//manipulate IP parameters
ip.SourceAddress = System.Net.IPAddress.Parse("1.2.3.4");
ip.DestinationAddress = System.Net.IPAddress.Parse("44.33.22.11");
ip.TimeToLive = 11;
//Recalculate the IP checksum
ip.ComputeIPChecksum();
if (ip is TCPPacket)
{
TCPPacket tcp = ((TCPPacket)ip);
Console.WriteLine("Original TCP packet: " + tcp.ToColoredString(false));
//manipulate TCP parameters
tcp.SourcePort = 9999;
tcp.DestinationPort = 8888;
tcp.Syn = !tcp.Syn;
tcp.Fin = !tcp.Fin;
tcp.Ack = !tcp.Ack;
tcp.WindowSize = 500;
tcp.AcknowledgmentNumber = 800;
tcp.SequenceNumber = 800;
//Recalculate the TCP checksum
tcp.ComputeTCPChecksum();
}
if (ip is UDPPacket)
{
UDPPacket udp = ((UDPPacket)ip);
Console.WriteLine("Original UDP packet: " + udp.ToColoredString(false));
//manipulate UDP parameters
udp.SourcePort = 9999;
udp.DestinationPort = 8888;
//Recalculate the UDP checksum
udp.ComputeUDPChecksum();
}
}
Console.WriteLine("Manipulated Eth packet: " + eth.ToColoredString(false));
}
}
private static void device_PcapOnPacketArrival(object sender, Tamir.IPLib.Packets.Packet packet)
{
if (packet is EthernetPacket)
{
EthernetPacket eth = ((EthernetPacket)packet);
Console.WriteLine("Original packet: " + eth.ToColoredString(false));
//Manipulate ethernet parameters
eth.SourceHwAddress = "00:11:22:33:44:55";
eth.DestinationHwAddress = "00:99:88:77:66:55";
if (packet is IPPacket)
{
IPPacket ip = ((IPPacket)packet);
//manipulate IP parameters
ip.SourceAddress = "1.2.3.4";
ip.DestinationAddress = "44.33.22.11";
ip.TimeToLive = 11;
//Recalculate the IP checksum
ip.ComputeIPChecksum();
if (ip is TCPPacket)
{
TCPPacket tcp = ((TCPPacket)ip);
//manipulate TCP parameters
tcp.SourcePort = 9999;
tcp.DestinationPort = 8888;
tcp.Syn = !tcp.Syn;
tcp.Fin = !tcp.Fin;
tcp.Ack = !tcp.Ack;
tcp.WindowSize = 500;
tcp.AcknowledgementNumber = 800;
tcp.SequenceNumber = 800;
//Recalculate the TCP checksum
tcp.ComputeTCPChecksum();
}
if (ip is UDPPacket)
{
UDPPacket udp = ((UDPPacket)ip);
//manipulate UDP parameters
udp.SourcePort = 9999;
udp.DestinationPort = 8888;
//Recalculate the UDP checksum
udp.ComputeUDPChecksum();
}
}
Console.WriteLine("Manipulated packet: " + eth.ToColoredString(false));
}
}
// dns
public void VerifyPacket3(Packet p)
{
Console.WriteLine(p.ToString());
EthernetPacket e = (EthernetPacket)p;
Assert.AreEqual("00:16:cf:c9:1e:29", e.SourceHwAddress);
Assert.AreEqual("00:14:bf:f2:ef:0a", e.DestinationHwAddress);
IPPacket ip = (IPPacket)p;
Assert.AreEqual(System.Net.IPAddress.Parse("192.168.1.172"), ip.SourceAddress);
Assert.AreEqual(System.Net.IPAddress.Parse("66.189.0.29"), ip.DestinationAddress);
Assert.AreEqual(IPProtocol.IPProtocolType.UDP, ip.IPProtocol);
Assert.AreEqual(0x7988, ip.ComputeIPChecksum());
UDPPacket udp = (UDPPacket)(p);
Assert.AreEqual(3619, udp.SourcePort);
Assert.AreEqual(53, udp.DestinationPort);
Assert.AreEqual(47, udp.UDPLength);
Assert.AreEqual(0x7988, udp.ComputeIPChecksum());
Assert.AreEqual(0xbe2d, udp.UDPChecksum);
Assert.AreEqual(0xbe2d, udp.Checksum);
}
