void ofputil_cls_rule_from_match(const struct ofp_match *,
unsigned int priority, struct cls_rule *);
void ofputil_cls_rule_to_match(const struct cls_rule *, struct ofp_match *);
void ofputil_cls_rule_from_match(const struct ofp_match *,
unsigned int priority, struct cls_rule *);
void ofputil_cls_rule_to_match(const struct cls_rule *, struct ofp_match *);