enum ofperr ofputil_decode_packet_in(struct ofputil_packet_in *,
const struct ofp_header *);
struct ofpbuf *ofputil_encode_packet_in(const struct ofputil_packet_in *,
+ enum ofputil_protocol protocol,
enum nx_packet_in_format);
const char *ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason);