+/* The type of an OpenFlow asynchronous message. */
+enum ofconn_async_msg_type {
+ OAM_PACKET_IN, /* OFPT_PACKET_IN or NXT_PACKET_IN. */
+ OAM_PORT_STATUS, /* OFPT_PORT_STATUS. */
+ OAM_FLOW_REMOVED, /* OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED. */
+ OAM_N_TYPES
+};
+
+enum ofproto_packet_in_miss_type {
+ /* Not generated by a flow miss or table-miss flow. */
+ OFPROTO_PACKET_IN_NO_MISS,
+
+ /* The packet_in was generated directly by a table-miss flow, that is, a
+ * flow with priority 0 that wildcards all fields. See OF1.3.3 section
+ * 5.4.
+ *
+ * (Our interpretation of "directly" is "not via groups". Packet_ins
+ * generated by table-miss flows via groups use
+ * OFPROTO_PACKET_IN_NO_MISS.) */
+ OFPROTO_PACKET_IN_MISS_FLOW,
+
+ /* The packet-in was generated directly by a table-miss, but not a
+ * table-miss flow. That is, it was generated by the OpenFlow 1.0, 1.1, or
+ * 1.2 table-miss behavior. */
+ OFPROTO_PACKET_IN_MISS_WITHOUT_FLOW,
+};
+
+/* A packet_in, with extra members to assist in queuing and routing it. */
+struct ofproto_packet_in {
+ struct ofputil_packet_in up;
+ struct list list_node; /* For queuing. */
+ uint16_t controller_id; /* Controller ID to send to. */
+ int send_len; /* Length that the action requested sending. */
+ enum ofproto_packet_in_miss_type miss_type;
+};
+