func marshalOutput(p openflow.OutPort) ([]byte, error) {
v := make([]byte, 16)
binary.BigEndian.PutUint16(v[0:2], uint16(OFPAT_OUTPUT))
binary.BigEndian.PutUint16(v[2:4], 16)
var port uint32
switch {
case p.IsTable():
port = OFPP_TABLE
case p.IsFlood():
port = OFPP_FLOOD
case p.IsAll():
port = OFPP_ALL
case p.IsController():
port = OFPP_CONTROLLER
case p.IsInPort():
port = OFPP_IN_PORT
case p.IsNone():
port = OFPP_ANY
default:
port = p.Value()
}
binary.BigEndian.PutUint32(v[4:8], port)
// We don't support buffer ID and partial PACKET_IN
binary.BigEndian.PutUint16(v[8:10], 0xFFFF)
return v, nil
}
func marshalQueue(p openflow.OutPort, queue uint32) ([]byte, error) {
v := make([]byte, 16)
binary.BigEndian.PutUint16(v[0:2], uint16(OFPAT_ENQUEUE))
binary.BigEndian.PutUint16(v[2:4], 16)
var port uint16
switch {
case p.IsTable():
port = OFPP_TABLE
case p.IsFlood():
port = OFPP_FLOOD
case p.IsAll():
port = OFPP_ALL
case p.IsController():
port = OFPP_CONTROLLER
case p.IsNone():
port = OFPP_NONE
default:
port = uint16(p.Value())
}
binary.BigEndian.PutUint16(v[4:6], port)
// v[6:12] is padding
binary.BigEndian.PutUint32(v[12:16], queue)
return v, nil
}