+/* Alignment of ofp_actions. */
+#define OFP_ACTION_ALIGN 8
+
+/* Converting OFPFW_NW_SRC_MASK and OFPFW_NW_DST_MASK wildcard bit counts to
+ * and from IP bitmasks. */
+ovs_be32 ofputil_wcbits_to_netmask(int wcbits);
+int ofputil_netmask_to_wcbits(ovs_be32 netmask);
+
+/* Work with OpenFlow 1.0 ofp_match. */
+void ofputil_cls_rule_from_match(const struct ofp_match *,
+ unsigned int priority, enum nx_flow_format,
+ uint64_t cookie, struct cls_rule *);
+void ofputil_cls_rule_to_match(const struct cls_rule *, enum nx_flow_format,
+ struct ofp_match *);
+void normalize_match(struct ofp_match *);
+char *ofp_match_to_literal_string(const struct ofp_match *match);
+