_ref
uint16_t _ref(struct n2id_labels *, uint16_t);
return (_ref(&rt_labels, id));
return (_ref(&pftable_labels, id));
void _ref(struct n2id_labels *, u_int16_t);
void _ref(struct n2id_labels *, u_int16_t);
void _ref(struct n2id_labels *, u_int16_t);
_ref(&relay_tags, id);
_ref(&relay_labels, id);
void _ref(struct n2id_labels *, u_int16_t);