protected override void ChannelRead0(IChannelHandlerContext ctx, DatagramDnsQuery query)
{
DatagramDnsResponse response = new DatagramDnsResponse(query.Recipient, query.Sender, query.Id);
DefaultDnsQuestion dnsQuestion = query.GetRecord <DefaultDnsQuestion>(DnsSection.QUESTION);
response.AddRecord(DnsSection.QUESTION, dnsQuestion);
_readAction(ctx, new TransportMessage(new DnsTransportMessage
{
DnsResponse = response,
DnsQuestion = dnsQuestion
}));
}
private static IDnsResponse NewResponse(DatagramPacket packet, IByteBuffer buffer)
{
int id = buffer.ReadUnsignedShort();
int flags = buffer.ReadUnsignedShort();
if (flags >> 15 == 0)
{
throw new CorruptedFrameException("not a response");
}
IDnsResponse response = new DatagramDnsResponse(
packet.Sender,
packet.Recipient,
id,
DnsOpCode.From((byte)(flags >> 1 & 0xf)),
DnsResponseCode.From((byte)(flags & 0xf)));
return(response);
}
