ctnetlink_parse_tuple_filter
err = ctnetlink_parse_tuple_filter(cda, &filter->orig,
err = ctnetlink_parse_tuple_filter(cda, &filter->reply,
return ctnetlink_parse_tuple_filter(cda, tuple, type, l3num, zone,
static int ctnetlink_parse_tuple_filter(const struct nlattr * const cda[],