| /* |
| * Copyright 2015 Open Networking Laboratory |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.driver.handshaker; |
| |
| import org.onosproject.net.meter.MeterId; |
| import org.onosproject.openflow.controller.driver.AbstractOpenFlowSwitch; |
| import org.onosproject.openflow.controller.driver.SwitchDriverSubHandshakeAlreadyStarted; |
| import org.onosproject.openflow.controller.driver.SwitchDriverSubHandshakeCompleted; |
| import org.onosproject.openflow.controller.driver.SwitchDriverSubHandshakeNotStarted; |
| import org.projectfloodlight.openflow.protocol.OFBarrierRequest; |
| import org.projectfloodlight.openflow.protocol.OFFlowMod; |
| import org.projectfloodlight.openflow.protocol.OFGroupMod; |
| import org.projectfloodlight.openflow.protocol.OFGroupType; |
| import org.projectfloodlight.openflow.protocol.OFMessage; |
| import org.projectfloodlight.openflow.protocol.OFMeterMod; |
| import org.projectfloodlight.openflow.protocol.OFType; |
| import org.projectfloodlight.openflow.types.OFGroup; |
| import org.projectfloodlight.openflow.types.TableId; |
| |
| import java.util.Collections; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| |
| /** |
| * Corsa switch handshaker. |
| */ |
| public class CorsaSwitchHandshaker extends AbstractOpenFlowSwitch { |
| |
| private AtomicBoolean handshakeComplete = new AtomicBoolean(false); |
| |
| private int barrierXid; |
| |
| |
| @Override |
| public Boolean supportNxRole() { |
| return false; |
| } |
| |
| @Override |
| public void startDriverHandshake() { |
| if (startDriverHandshakeCalled) { |
| throw new SwitchDriverSubHandshakeAlreadyStarted(); |
| } |
| startDriverHandshakeCalled = true; |
| OFFlowMod fm = factory().buildFlowDelete() |
| .setTableId(TableId.ALL) |
| .setOutGroup(OFGroup.ANY) |
| .build(); |
| |
| sendMsg(Collections.singletonList(fm)); |
| |
| OFGroupMod gm = factory().buildGroupDelete() |
| .setGroup(OFGroup.ALL) |
| .setGroupType(OFGroupType.ALL) |
| .build(); |
| |
| sendMsg(Collections.singletonList(gm)); |
| |
| OFMeterMod mm = factory().buildMeterMod() |
| .setMeterId(MeterId.ALL.id()) |
| .build(); |
| |
| sendMsg(Collections.singletonList(mm)); |
| |
| barrierXid = getNextTransactionId(); |
| OFBarrierRequest barrier = factory().buildBarrierRequest() |
| .setXid(barrierXid).build(); |
| |
| |
| sendHandshakeMessage(barrier); |
| |
| } |
| |
| @Override |
| public boolean isDriverHandshakeComplete() { |
| if (!startDriverHandshakeCalled) { |
| throw new SwitchDriverSubHandshakeAlreadyStarted(); |
| } |
| return handshakeComplete.get(); |
| } |
| |
| @Override |
| public void processDriverHandshakeMessage(OFMessage m) { |
| if (!startDriverHandshakeCalled) { |
| throw new SwitchDriverSubHandshakeNotStarted(); |
| } |
| if (handshakeComplete.get()) { |
| throw new SwitchDriverSubHandshakeCompleted(m); |
| } |
| if (m.getType() == OFType.BARRIER_REPLY && |
| m.getXid() == barrierXid) { |
| handshakeComplete.set(true); |
| } |
| } |
| |
| } |