void flow_extract(struct ofpbuf *, uint32_t priority, uint32_t mark,
const struct flow_tnl *, uint16_t in_port, struct flow *);
+void flow_extract_l3_onwards(struct ofpbuf *, struct flow *,
+ ovs_be16 dl_type);
void flow_zero_wildcards(struct flow *, const struct flow_wildcards *);
void flow_get_metadata(const struct flow *, struct flow_metadata *);