LIST_PROTO
{ BM_IPVER, "family %s", LIST_PROTO, print_family, 1 },
{ BM_PROTO, "proto %s", LIST_PROTO, print_proto, 1 },
{ BM_TCPFL, "flags %s", LIST_PROTO, print_tcpflags, 2 },
{ BM_ICMP_TYPE, "icmp-type %s", LIST_PROTO, print_number, 1 },
{ BM_ICMP_CODE, "code %s", LIST_PROTO, print_number, 1 },
npfctl_print_filter_generic(ctx, LIST_PROTO);