details of the differences from the core code, by adding a protocol
layer that translates between OF1.x and a slightly higher-level
abstract representation. The core of this approach is the many struct
-ofputil_* structures in lib/ofp-util.h.
+ofputil_* structures in include/openvswitch/ofp-util.h.
As a consequence of this approach, OVS cannot use OpenFlow protocol
definitions that closely resemble those in the OpenFlow specification,