private static void Device_OnPacketArrival(object sender, CaptureEventArgs e)
{
try
{
var packet = Packet.ParsePacket(e.Packet.LinkLayerType, e.Packet.Data);
var ip = packet.Extract(typeof(IpPacket)) as IpPacket;
var udp = packet.Extract(typeof(UdpPacket)) as UdpPacket;
if (Coap.IsCoap(udp.PayloadData))
{
File.WriteAllBytes($"{e.Device.Statistics.ReceivedPackets:0000}.raw", udp.PayloadData);
var coap = new Coap(new KaitaiStream(udp.PayloadData));
var uri = coap.GetUri(ip.DestinationAddress.ToString(), udp.DestinationPort);
var parameters = System.Web.HttpUtility.ParseQueryString(uri.Query);
Console.WriteLine($"{e.Packet.Timeval.Date}: {packet}[CoAPPacket: Code={coap.Code}, Type={coap.Type}, MID={coap.MessageId}, Uri={uri}]");
// analyze CoAP message to generate LwM2M event:
if (coap.IsRequest && coap.RequestMethod == RequestMethod.Post && uri.LocalPath.Equals("/rd"))
{
Console.WriteLine($"EVENT: [LwM2M.Register: endpoint={parameters["ep"]}, lifetime={parameters["lt"]}, version={parameters["lwm2m"]}, binding={parameters["b"]}]");
}
}
}
catch (Exception)
{
Console.Error.WriteLine($"{e.Packet.Timeval.Date}: Unable to parse packet.");
}
}
public void TestMulticastIPv6ScopesThrowsException(int scope)
{
Assert.Throws <ArgumentOutOfRangeException>(() => Coap.GetMulticastIPv6ForScope(scope));
}
public string TestMulticastIPv6Scopes(int scope)
{
return(Coap.GetMulticastIPv6ForScope(scope));
}
