public Func <byte[], bool> OptionalFilter; // verifies NPACK.NeighborHMAC, ignores invalid HMACs // returns false to ignore the processed response packet
public bool Scan(DrpPeerEngine engine, byte[] udpData) // may throw parser exception
{
if (!MiscProcedures.EqualByteArrayHeader(ResponseFirstBytes, udpData, IgnoredByteAtOffset1))
{
if (engine.WriteToLog_udp_deepDetail_enabled)
{
engine.WriteToLog_udp_deepDetail($"packet does not match to ResponseFirstBytes={MiscProcedures.ByteArrayToString(ResponseFirstBytes)} ({(PacketTypes)ResponseFirstBytes[0]}) udpData={MiscProcedures.ByteArrayToString(udpData)} ({(PacketTypes)udpData[0]})"
);
}
return(false);
}
if (OptionalFilter != null)
{
if (!OptionalFilter(udpData))
{
//if (engine.WriteToLog_udp_deepDetail_enabled)
engine.WriteToLog_udp_lightPain($"packet did not pass OptionalFilter");
return(false);
}
}
return(true);
}