+void *ofpprop_put_zeros(struct ofpbuf *, uint64_t type, size_t len);
+void ofpprop_put_be16(struct ofpbuf *, uint64_t type, ovs_be16 value);
+void ofpprop_put_be32(struct ofpbuf *, uint64_t type, ovs_be32 value);
+void ofpprop_put_be64(struct ofpbuf *, uint64_t type, ovs_be64 value);
+void ofpprop_put_u8(struct ofpbuf *, uint64_t type, uint8_t value);
+void ofpprop_put_u16(struct ofpbuf *, uint64_t type, uint16_t value);
+void ofpprop_put_u32(struct ofpbuf *, uint64_t type, uint32_t value);
+void ofpprop_put_u64(struct ofpbuf *, uint64_t type, uint64_t value);
+void ofpprop_put_bitmap(struct ofpbuf *, uint64_t type, uint64_t bitmap);
+void ofpprop_put_flag(struct ofpbuf *, uint64_t type);
+void ofpprop_put_uuid(struct ofpbuf *, uint64_t type, const struct uuid *);
+void ofpprop_put_nested(struct ofpbuf *, uint64_t type, const struct ofpbuf *);