Method getfield

scapy/fields.py:669–676

(self,
                 pkt,  # type: Packet
                 s,  # type: bytes
                 )

        return len(pkt.original)

    def getfield(self,
                 pkt,  # type: Packet
                 s,  # type: bytes
                 ):
        # type: (...) -> Tuple[bytes, Any]
        # We need to get the length that has already been dissected
        padlen = self.padlen(self.original_length(pkt) - len(s), pkt)
        return self.fld.getfield(pkt, s[padlen:])

    def addfield(self,
                 pkt,  # type: Packet