void packet_set_udp_port(struct ofpbuf *, ovs_be16 src, ovs_be16 dst);
void packet_set_sctp_port(struct ofpbuf *, ovs_be16 src, ovs_be16 dst);
-uint16_t packet_get_tcp_flags(const struct ofpbuf *, const struct flow *);
void packet_format_tcp_flags(struct ds *, uint16_t);
const char *packet_tcp_flag_to_string(uint32_t flag);