public static void delete()
{
while (true)
{
dnsSnifferTableAdapters.req_tableTableAdapter reqta = new MyDnsSniffer.dnsSnifferTableAdapters.req_tableTableAdapter();
DateTime time = DateTime.Now;
Thread.Sleep(5000);
reqta.DeleteQueryTime(time);
}
}
private static void device_OnPacketArrival(object sender, CaptureEventArgs e)
{
DateTime time = e.Packet.Timeval.Date;
var packet = PacketDotNet.Packet.ParsePacket(e.Packet.LinkLayerType, e.Packet.Data);
var udpPacket = PacketDotNet.UdpPacket.GetEncapsulated(packet); //PacketDotNet.TcpPacket.GetEncapsulated(packet);
if (udpPacket != null)
{
var ipPacket = (PacketDotNet.IpPacket)udpPacket.ParentPacket;
System.Net.IPAddress srcIp = ipPacket.SourceAddress;
System.Net.IPAddress dstIp = ipPacket.DestinationAddress;
// MessageBox.Show(srcIp.ToString() + " " + dstIp.ToString());
int srcPort = udpPacket.SourcePort;
int dstPort = udpPacket.DestinationPort;
if ((srcPort == 53) || (dstPort == 53))
{
IPEndPoint a = new IPEndPoint(ipPacket.SourceAddress, srcPort);
response = new Response(a, udpPacket.PayloadData);
if ((response.header.QR == false))// && (srcIp == IPAddress.Parse("10.12.11.74")))
{
Console.WriteLine("Got an Question...");
display();
dnsSnifferTableAdapters.req_tableTableAdapter reqta = new MyDnsSniffer.dnsSnifferTableAdapters.req_tableTableAdapter();
reqta.Insert(Convert.ToDecimal(response.header.ID), Convert.ToDecimal(srcPort), dstIp.ToString(), response.Questions[0].QName.ToString(),time);
}
else if ((response.header.QR == true))// && (dstIp == IPAddress.Parse("10.12.11.74")))
{
Console.WriteLine("Got an Answer..");
if (response.Answers.Count > 0)
{
Console.WriteLine("Got an Answer..");
display();
}
dnsSnifferTableAdapters.res_tableTableAdapter resta = new MyDnsSniffer.dnsSnifferTableAdapters.res_tableTableAdapter();
foreach (AnswerRR answerRR in response.Answers)
{
resta.Insert(Convert.ToDecimal(response.header.ID), Convert.ToDecimal(dstPort), srcIp.ToString(), r_id, answerRR.NAME.ToString(), answerRR.RECORD.ToString(), time);
}
dnsSnifferTableAdapters.additional_host_ipTableAdapter addta = new MyDnsSniffer.dnsSnifferTableAdapters.additional_host_ipTableAdapter();
foreach (AdditionalRR additionalRR in response.Additionals)
{
if(additionalRR.RECORD.ToString()!="not-used")
addta.Insert(r_id,additionalRR.NAME.ToString(), additionalRR.RECORD.ToString());
}
r_id++;
}
}
}
}
