private Packet BuildResponse(string name, UInt16 id, ServiceInfo info, IPAddress ip4Address, IPAddress ip6Address)
{
var ret = new Packet();
ret.TransactionID = id;
ret.Flags.IsResponse = true;
ret.Flags.IsAuthoritative = true;
var dnsName = name;
var domainName = string.Join(".", info.Name, dnsName);
var machineName = fullName;
var ptr = PTRAnswer.Build(dnsName, domainName, 4500, false, 1);
var txt = TXTAnswer.Build(domainName, 4500, info.Flags, info.Data, true, 1);
var srv = SRVAnswer.Build(domainName, 120, info.Priority, info.Weight, info.Port, machineName, true, 1);
var a = AAnswer.Build(machineName, ip4Address, (UInt16)120, true, 1);
var aaaa = AAAAAnswer.Build(machineName, ip6Address, (UInt16)120, true, 1);
ret.Answers.Add(ptr);
ret.Answers.Add(txt);
ret.Answers.Add(srv);
if (aaaa != null)
{
ret.Answers.Add(aaaa);
}
if (a != null)
{
ret.Answers.Add(a);
}
return(ret);
}
public void RespondWithServiceInfo()
{
var core = BuildService("10.99.99.99", "fe80::20c:29ff:fe0d:e789");
Packet received = null;
core.Setup(x => x.SendPacket(It.IsAny <Packet>())).Callback <Packet>(x => received = x);
using (var service = new ServicePublisher(core.Object))
{
var publishInfo = new ServiceInfo();
publishInfo.Name = "Pubtest";
publishInfo.IP4Address = IPAddress.Parse("10.0.0.10");
publishInfo.IP6Address = IPAddress.Parse("fe80::20c:29ff:fe0d:e789");
publishInfo.Port = 9999;
publishInfo.Priority = 10;
publishInfo.Weight = 10;
publishInfo.Flags.Add("TestFlag");
publishInfo.Data["TestData"] = "TestValue";
service.LocalName = "Scooby";
service.AddService("_pubtest._tcp.local", publishInfo);
service.Start();
core.Raise(x => x.PacketReceived += null, BuildQueryPacket("_pubtest._tcp.local"), new IPEndPoint(IPAddress.Parse("10.0.0.10"), 5353));
Assert.IsTrue(received.Flags.IsResponse);
Assert.IsTrue(received.Flags.IsAuthoritative);
var ptrAnswer = received.Answers.Where(x => x.Record.RecordType == PTRAnswer.RecordType).First().Data as PTRAnswer;
Assert.AreEqual("Pubtest._pubtest._tcp.local", ptrAnswer.DomainName);
var srv = received.Answers.Where(x => x.Record.RecordType == SRVAnswer.RecordType).First();
var srvAnswer = srv.Data as SRVAnswer;
Assert.AreEqual(SRVAnswer.GetService(srv.Record), "Pubtest");
Assert.AreEqual(SRVAnswer.GetProtocol(srv.Record), "_pubtest");
Assert.AreEqual(SRVAnswer.GetName(srv.Record), "_tcp.local");
//Assert.AreEqual("Pubtest._pubtest._tcp.local", srvAnswer.Name);
Assert.AreEqual(9999, srvAnswer.Port);
Assert.AreEqual(10, srvAnswer.Priority);
Assert.AreEqual(10, srvAnswer.Weight);
Assert.AreEqual("Scooby.local", srvAnswer.Target);
var txtAnswer = received.Answers.Where(x => x.Record.RecordType == TXTAnswer.RecordType).First().Data as TXTAnswer;
Assert.AreEqual("TestFlag", txtAnswer.Flags[0]);
Assert.AreEqual("TestValue", txtAnswer.Data["TestData"]);
var aAnswer = received.Answers.Where(x => x.Record.RecordType == AAnswer.RecordType).First().Data as AAnswer;
Assert.AreEqual(IPAddress.Parse("10.99.99.99"), aAnswer.Address);
var aaaaAnswer = received.Answers.Where(x => x.Record.RecordType == AAAAAnswer.RecordType).First().Data as AAAAAnswer;
Assert.AreEqual(IPAddress.Parse("fe80::20c:29ff:fe0d:e789"), aaaaAnswer.Address);
}
}
public void DeserializeResponse()
{
var packetHex = "000084000000000500000000085f70756274657374045f746370056c6f63616c00000c000100001194000a0750756274657374c00cc02b0010800100001194000100c02b0021800100000078000f00000000270f067562756e7475c01ac054001c8001000000780010fe80000000000000020c29fffe0de789c05400018001000000780004c0a81080";
var packetBytes = ParseWiresharkString(packetHex);
var reader = new PacketReader();
var packet = reader.Read(packetBytes
);
Assert.IsTrue(packet.Flags.IsResponse);
Assert.IsTrue(packet.Flags.IsAuthoritative);
Assert.AreEqual(packet.TransactionID, 0);
Assert.AreEqual(packet.Questions, 0);
Assert.AreEqual(packet.AnswerRRs, 5);
Assert.AreEqual(packet.AuthorityRRs, 0);
Assert.AreEqual(packet.AdditionalRRs, 0);
var ptrAns = packet.Answers.Single(x => x.Record.RecordType == 12);
Assert.IsTrue(ptrAns.Record.Name.Equals("_pubtest._tcp.local"));
Assert.AreEqual(ptrAns.Record.Class, 1);
Assert.IsFalse(ptrAns.CacheFlush);
Assert.AreEqual(ptrAns.TTL, (uint)4500);
var ptrData = ptrAns.Data as PTRAnswer;
Assert.IsTrue(ptrData.DomainName.Equals("Pubtest._pubtest._tcp.local"));
var txtAns = packet.Answers.Single(x => x.Record.RecordType == 16);
Assert.IsTrue(txtAns.Record.Name.Equals("Pubtest._pubtest._tcp.local"));
Assert.AreEqual(txtAns.Record.Class, 1);
Assert.IsTrue(txtAns.CacheFlush);
Assert.AreEqual(txtAns.TTL, (uint)4500);
var txtData = txtAns.Data as TXTAnswer;
Assert.AreEqual(txtData.Data.Count, 0);
Assert.AreEqual(txtData.Flags.Count, 0);
var srv = packet.Answers.Single(x => x.Record.RecordType == 33);
Assert.AreEqual(srv.Record.Class, 1);
Assert.IsTrue(srv.CacheFlush);
Assert.AreEqual(srv.TTL, (uint)120);
var srvData = srv.Data as SRVAnswer;
Assert.AreEqual(SRVAnswer.GetService(srv.Record), "Pubtest");
Assert.AreEqual(SRVAnswer.GetProtocol(srv.Record), "_pubtest");
Assert.AreEqual(SRVAnswer.GetName(srv.Record), "_tcp.local");
Assert.AreEqual(srvData.Priority, 0);
Assert.AreEqual(srvData.Weight, 0);
Assert.AreEqual(srvData.Port, 9999);
Assert.IsTrue(srvData.Target.Equals("ubuntu.local"));
var aaaa = packet.Answers.Single(x => x.Record.RecordType == 28);
Assert.AreEqual(aaaa.Record.Name, "ubuntu.local");
Assert.AreEqual(aaaa.Record.Class, 1);
Assert.IsTrue(aaaa.CacheFlush);
Assert.AreEqual(aaaa.TTL, (uint)120);
var aaaaData = aaaa.Data as AAAAAnswer;
Assert.AreEqual(aaaaData.Address, IPAddress.Parse("fe80::20c:29ff:fe0d:e789"));
var a = packet.Answers.Single(x => x.Record.RecordType == 1);
Assert.AreEqual(a.Record.Name, "ubuntu.local");
Assert.AreEqual(a.Record.Class, 1);
Assert.IsTrue(a.CacheFlush);
Assert.AreEqual(a.TTL, (uint)120);
var aData = a.Data as AAnswer;
Assert.AreEqual(aData.Address, IPAddress.Parse("192.168.16.128"));
}
