Function do_filter

scapy/packet.py:2131–2136

(params, cls)

        fval.update(__fval)

    def do_filter(params, cls):
        # type: (Dict[str, int], Type[Packet]) -> bool
        params_is_invalid = any(
            k not in params or params[k] != v for k, v in fval.items()
        )
        return cls != upper or params_is_invalid
    lower.payload_guess = [x for x in lower.payload_guess if do_filter(*x)]