/* * Macros for M_CSUM_TCPv6 and M_CSUM_UDPv6 * * M_CSUM_DATA_IPv6_HL: length of ip6_hdr + ext header. * ie. offset of UDP/TCP header in the packet. * * M_CSUM_DATA_IPv6_OFFSET: offset of the checksum field in UDP/TCP header. */