// 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);
}
public static void Run(string[] args)
{
string S = "Hello";
int lLen = EthernetFields_Fields.ETH_HEADER_LEN;
//bytes = System.Convert.ToByte(S);
const int MIN_PKT_LEN = 42;
byte[] data = System.Text.Encoding.ASCII.GetBytes("HELLO");
byte[] bytes = new byte[MIN_PKT_LEN + data.Length];
Array.Copy(data, 0, bytes, MIN_PKT_LEN, data.Length);
PcapDeviceList devices = SharpPcap.GetAllDevices();
PcapDevice device = devices[2];
NetworkDevice netdev = (NetworkDevice)device;
UDPPacket packet = new UDPPacket(lLen, bytes);
//Ethernet Fields
packet.DestinationHwAddress = "001122334455";
packet.SourceHwAddress = netdev.MacAddress;
packet.EthernetProtocol = EthernetProtocols_Fields.IP;
//IP Fields
packet.DestinationAddress = "58.100.187.167";
packet.SourceAddress = netdev.IpAddress;
packet.IPProtocol = IPProtocols_Fields.UDP;
packet.TimeToLive = 20;
packet.Id = 100;
packet.Version = 4;
packet.IPTotalLength = bytes.Length - lLen;
packet.IPHeaderLength = IPFields_Fields.IP_HEADER_LEN;
//UDP Fields
packet.DestinationPort = 9898;
packet.SourcePort = 80;
packet.ComputeIPChecksum();
packet.ComputeUDPChecksum();
device.PcapOpen();
device.PcapSendPacket(packet);
device.PcapClose();
}
// 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);
}
