private void SendAddressResponse(Packet p, IPEndPoint ep)
{
var packet = new Packet();
packet.TransactionID = p.TransactionID;
packet.Flags.IsResponse = true;
packet.Flags.IsAuthoritative = true;
var ip4Address = GetIP4Address();
var ip6Address = GetIP6Address();
var a = AAnswer.Build(fullName, ip4Address, (UInt16)120, true, 1);
var aaaa = AAAAAnswer.Build(fullName, ip6Address, (UInt16)120, true, 1);
if (a != null)
{
packet.Answers.Add(a);
}
if (aaaa != null)
{
packet.Answers.Add(aaaa);
}
if (ep != null)
{
_service.SendPacket(p, ep);
}
else
{
_service.SendPacket(packet);
}
}
Packet BuildAnswerPacket(string name, string ip4, string ip6 = null)
{
var resp = new Packet();
resp.Flags.IsResponse = true;
resp.Flags.IsAuthoritative = true;
if (!string.IsNullOrEmpty(ip4))
{
var answer = new Answer();
answer.Record = new Record();
answer.Record.Name = name;
answer.Record.RecordType = AAnswer.RecordType;
var answerData = new AAnswer();
answerData.Address = IPAddress.Parse("10.99.99.99");
answer.Data = answerData;
resp.Answers.Add(answer);
}
if (!string.IsNullOrEmpty(ip6))
{
var answer = new Answer();
answer.Record = new Record();
answer.Record.Name = name;
answer.Record.RecordType = AAAAAnswer.RecordType;
var answerData = new AAAAAnswer();
answerData.Address = IPAddress.Parse(ip6);
answer.Data = answerData;
resp.Answers.Add(answer);
}
return(resp);
}
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);
}