| /* |
| * Copyright 2015-present 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.openflow.controller.impl; |
| |
| import com.google.common.collect.ArrayListMultimap; |
| import com.google.common.collect.Lists; |
| import com.google.common.collect.Multimap; |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Modified; |
| import org.apache.felix.scr.annotations.Property; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.apache.felix.scr.annotations.Service; |
| import org.onosproject.cfg.ComponentConfigService; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.net.device.DeviceEvent; |
| import org.onosproject.net.device.DeviceEvent.Type; |
| import org.onosproject.net.device.DeviceListener; |
| import org.onosproject.net.device.DeviceService; |
| import org.onosproject.net.driver.DefaultDriverProviderService; |
| import org.onosproject.net.driver.DriverService; |
| import org.onosproject.openflow.controller.DefaultOpenFlowPacketContext; |
| import org.onosproject.openflow.controller.Dpid; |
| import org.onosproject.openflow.controller.OpenFlowController; |
| import org.onosproject.openflow.controller.OpenFlowEventListener; |
| import org.onosproject.openflow.controller.OpenFlowMessageListener; |
| import org.onosproject.openflow.controller.OpenFlowPacketContext; |
| import org.onosproject.openflow.controller.OpenFlowSwitch; |
| import org.onosproject.openflow.controller.OpenFlowSwitchListener; |
| import org.onosproject.openflow.controller.PacketListener; |
| import org.onosproject.openflow.controller.RoleState; |
| import org.onosproject.openflow.controller.driver.OpenFlowAgent; |
| import org.osgi.service.component.ComponentContext; |
| import org.projectfloodlight.openflow.protocol.OFCalientFlowStatsEntry; |
| import org.projectfloodlight.openflow.protocol.OFCalientFlowStatsReply; |
| import org.projectfloodlight.openflow.protocol.OFCircuitPortStatus; |
| import org.projectfloodlight.openflow.protocol.OFExperimenter; |
| import org.projectfloodlight.openflow.protocol.OFFactories; |
| import org.projectfloodlight.openflow.protocol.OFFlowStatsEntry; |
| import org.projectfloodlight.openflow.protocol.OFFlowStatsReply; |
| import org.projectfloodlight.openflow.protocol.OFGroupDescStatsEntry; |
| import org.projectfloodlight.openflow.protocol.OFGroupDescStatsReply; |
| import org.projectfloodlight.openflow.protocol.OFGroupStatsEntry; |
| import org.projectfloodlight.openflow.protocol.OFGroupStatsReply; |
| import org.projectfloodlight.openflow.protocol.OFMessage; |
| import org.projectfloodlight.openflow.protocol.OFPacketIn; |
| import org.projectfloodlight.openflow.protocol.OFPortDesc; |
| import org.projectfloodlight.openflow.protocol.OFPortStatsEntry; |
| import org.projectfloodlight.openflow.protocol.OFPortStatsReply; |
| import org.projectfloodlight.openflow.protocol.OFPortStatus; |
| import org.projectfloodlight.openflow.protocol.OFStatsReply; |
| import org.projectfloodlight.openflow.protocol.OFStatsReplyFlags; |
| import org.projectfloodlight.openflow.protocol.OFTableStatsEntry; |
| import org.projectfloodlight.openflow.protocol.OFTableStatsReply; |
| import org.projectfloodlight.openflow.protocol.action.OFActionOutput; |
| import org.projectfloodlight.openflow.protocol.instruction.OFInstruction; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Optional; |
| import java.util.Set; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.ConcurrentMap; |
| import java.util.concurrent.CopyOnWriteArraySet; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.locks.Lock; |
| import java.util.concurrent.locks.ReentrantLock; |
| |
| import static org.onlab.util.Tools.groupedThreads; |
| import static org.onosproject.openflow.controller.Dpid.dpid; |
| |
| @Component(immediate = true) |
| @Service |
| public class OpenFlowControllerImpl implements OpenFlowController { |
| private static final String APP_ID = "org.onosproject.openflow-base"; |
| private static final String DEFAULT_OFPORT = "6633,6653"; |
| private static final int DEFAULT_WORKER_THREADS = 0; |
| |
| private static final Logger log = |
| LoggerFactory.getLogger(OpenFlowControllerImpl.class); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DriverService driverService; |
| |
| // References exists merely for sequencing purpose to assure drivers are loaded |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DefaultDriverProviderService defaultDriverProviderService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected ComponentConfigService cfgService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceService deviceService; |
| |
| |
| @Property(name = "openflowPorts", value = DEFAULT_OFPORT, |
| label = "Port numbers (comma separated) used by OpenFlow protocol; default is 6633,6653") |
| private String openflowPorts = DEFAULT_OFPORT; |
| |
| @Property(name = "workerThreads", intValue = DEFAULT_WORKER_THREADS, |
| label = "Number of controller worker threads") |
| private int workerThreads = DEFAULT_WORKER_THREADS; |
| |
| protected ExecutorService executorMsgs = |
| Executors.newFixedThreadPool(32, groupedThreads("onos/of", "event-stats-%d", log)); |
| |
| private final ExecutorService executorBarrier = |
| Executors.newFixedThreadPool(4, groupedThreads("onos/of", "event-barrier-%d", log)); |
| |
| //Separate executor thread for handling error messages and barrier replies for same failed |
| // transactions to avoid context switching of thread |
| protected ExecutorService executorErrorMsgs = |
| Executors.newSingleThreadExecutor(groupedThreads("onos/of", "event-error-msg-%d", log)); |
| |
| //concurrent hashmap to track failed transactions |
| protected ConcurrentMap<Long, Boolean> errorMsgs = |
| new ConcurrentHashMap<>(); |
| protected ConcurrentMap<Dpid, OpenFlowSwitch> connectedSwitches = |
| new ConcurrentHashMap<>(); |
| protected ConcurrentMap<Dpid, OpenFlowSwitch> activeMasterSwitches = |
| new ConcurrentHashMap<>(); |
| protected ConcurrentMap<Dpid, OpenFlowSwitch> activeEqualSwitches = |
| new ConcurrentHashMap<>(); |
| |
| protected OpenFlowSwitchAgent agent = new OpenFlowSwitchAgent(); |
| protected Set<OpenFlowSwitchListener> ofSwitchListener = new CopyOnWriteArraySet<>(); |
| |
| protected Multimap<Integer, PacketListener> ofPacketListener = |
| ArrayListMultimap.create(); |
| |
| protected Set<OpenFlowEventListener> ofEventListener = new CopyOnWriteArraySet<>(); |
| |
| protected Set<OpenFlowMessageListener> ofMessageListener = new CopyOnWriteArraySet<>(); |
| |
| protected Multimap<Dpid, OFFlowStatsEntry> fullFlowStats = |
| ArrayListMultimap.create(); |
| |
| protected Multimap<Dpid, OFTableStatsEntry> fullTableStats = |
| ArrayListMultimap.create(); |
| |
| protected Multimap<Dpid, OFGroupStatsEntry> fullGroupStats = |
| ArrayListMultimap.create(); |
| |
| protected Multimap<Dpid, OFGroupDescStatsEntry> fullGroupDescStats = |
| ArrayListMultimap.create(); |
| |
| protected Multimap<Dpid, OFPortStatsEntry> fullPortStats = |
| ArrayListMultimap.create(); |
| |
| private final Controller ctrl = new Controller(); |
| private InternalDeviceListener listener = new InternalDeviceListener(); |
| |
| @Activate |
| public void activate(ComponentContext context) { |
| coreService.registerApplication(APP_ID, this::cleanup); |
| cfgService.registerProperties(getClass()); |
| deviceService.addListener(listener); |
| ctrl.setConfigParams(context.getProperties()); |
| ctrl.start(agent, driverService); |
| } |
| |
| private void cleanup() { |
| // Close listening channel and all OF channels. Clean information about switches |
| // before deactivating |
| ctrl.stop(); |
| connectedSwitches.values().forEach(OpenFlowSwitch::disconnectSwitch); |
| connectedSwitches.clear(); |
| activeMasterSwitches.clear(); |
| activeEqualSwitches.clear(); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| deviceService.removeListener(listener); |
| cleanup(); |
| cfgService.unregisterProperties(getClass(), false); |
| } |
| |
| @Modified |
| public void modified(ComponentContext context) { |
| ctrl.stop(); |
| ctrl.setConfigParams(context.getProperties()); |
| ctrl.start(agent, driverService); |
| } |
| |
| @Override |
| public Iterable<OpenFlowSwitch> getSwitches() { |
| return connectedSwitches.values(); |
| } |
| |
| @Override |
| public Iterable<OpenFlowSwitch> getMasterSwitches() { |
| return activeMasterSwitches.values(); |
| } |
| |
| @Override |
| public Iterable<OpenFlowSwitch> getEqualSwitches() { |
| return activeEqualSwitches.values(); |
| } |
| |
| @Override |
| public OpenFlowSwitch getSwitch(Dpid dpid) { |
| return connectedSwitches.get(dpid); |
| } |
| |
| @Override |
| public OpenFlowSwitch getMasterSwitch(Dpid dpid) { |
| return activeMasterSwitches.get(dpid); |
| } |
| |
| @Override |
| public OpenFlowSwitch getEqualSwitch(Dpid dpid) { |
| return activeEqualSwitches.get(dpid); |
| } |
| |
| @Override |
| public void addListener(OpenFlowSwitchListener listener) { |
| if (!ofSwitchListener.contains(listener)) { |
| this.ofSwitchListener.add(listener); |
| } |
| } |
| |
| @Override |
| public void removeListener(OpenFlowSwitchListener listener) { |
| this.ofSwitchListener.remove(listener); |
| } |
| |
| @Override |
| public void addMessageListener(OpenFlowMessageListener listener) { |
| ofMessageListener.add(listener); |
| } |
| |
| @Override |
| public void removeMessageListener(OpenFlowMessageListener listener) { |
| ofMessageListener.remove(listener); |
| } |
| |
| @Override |
| public void addPacketListener(int priority, PacketListener listener) { |
| ofPacketListener.put(priority, listener); |
| } |
| |
| @Override |
| public void removePacketListener(PacketListener listener) { |
| ofPacketListener.values().remove(listener); |
| } |
| |
| @Override |
| public void addEventListener(OpenFlowEventListener listener) { |
| ofEventListener.add(listener); |
| } |
| |
| @Override |
| public void removeEventListener(OpenFlowEventListener listener) { |
| ofEventListener.remove(listener); |
| } |
| |
| @Override |
| public void write(Dpid dpid, OFMessage msg) { |
| this.getSwitch(dpid).sendMsg(msg); |
| } |
| |
| @Override |
| public void processPacket(Dpid dpid, OFMessage msg) { |
| Collection<OFFlowStatsEntry> flowStats; |
| Collection<OFTableStatsEntry> tableStats; |
| Collection<OFGroupStatsEntry> groupStats; |
| Collection<OFGroupDescStatsEntry> groupDescStats; |
| Collection<OFPortStatsEntry> portStats; |
| |
| OpenFlowSwitch sw = this.getSwitch(dpid); |
| |
| switch (msg.getType()) { |
| case PORT_STATUS: |
| for (OpenFlowSwitchListener l : ofSwitchListener) { |
| l.portChanged(dpid, (OFPortStatus) msg); |
| } |
| break; |
| case FEATURES_REPLY: |
| for (OpenFlowSwitchListener l : ofSwitchListener) { |
| l.switchChanged(dpid); |
| } |
| break; |
| case PACKET_IN: |
| if (sw == null) { |
| log.error("Switch {} is not found", dpid); |
| break; |
| } |
| OpenFlowPacketContext pktCtx = DefaultOpenFlowPacketContext |
| .packetContextFromPacketIn(sw, (OFPacketIn) msg); |
| for (PacketListener p : ofPacketListener.values()) { |
| p.handlePacket(pktCtx); |
| } |
| break; |
| // TODO: Consider using separate threadpool for sensitive messages. |
| // ie. Back to back error could cause us to starve. |
| case FLOW_REMOVED: |
| executorMsgs.execute(new OFMessageHandler(dpid, msg)); |
| break; |
| case ERROR: |
| log.debug("Received error message from {}: {}", dpid, msg); |
| errorMsgs.putIfAbsent(msg.getXid(), true); |
| executorErrorMsgs.execute(new OFMessageHandler(dpid, msg)); |
| break; |
| case STATS_REPLY: |
| OFStatsReply reply = (OFStatsReply) msg; |
| switch (reply.getStatsType()) { |
| case PORT_DESC: |
| for (OpenFlowSwitchListener l : ofSwitchListener) { |
| l.switchChanged(dpid); |
| } |
| break; |
| case FLOW: |
| flowStats = publishFlowStats(dpid, (OFFlowStatsReply) reply); |
| if (flowStats != null) { |
| OFFlowStatsReply.Builder rep = |
| OFFactories.getFactory(msg.getVersion()).buildFlowStatsReply(); |
| rep.setEntries(Lists.newLinkedList(flowStats)); |
| rep.setXid(reply.getXid()); |
| executorMsgs.execute(new OFMessageHandler(dpid, rep.build())); |
| } |
| break; |
| case TABLE: |
| tableStats = publishTableStats(dpid, (OFTableStatsReply) reply); |
| if (tableStats != null) { |
| OFTableStatsReply.Builder rep = |
| OFFactories.getFactory(msg.getVersion()).buildTableStatsReply(); |
| rep.setEntries(Lists.newLinkedList(tableStats)); |
| executorMsgs.execute(new OFMessageHandler(dpid, rep.build())); |
| } |
| break; |
| case GROUP: |
| groupStats = publishGroupStats(dpid, (OFGroupStatsReply) reply); |
| if (groupStats != null) { |
| OFGroupStatsReply.Builder rep = |
| OFFactories.getFactory(msg.getVersion()).buildGroupStatsReply(); |
| rep.setEntries(Lists.newLinkedList(groupStats)); |
| rep.setXid(reply.getXid()); |
| executorMsgs.execute(new OFMessageHandler(dpid, rep.build())); |
| } |
| break; |
| case GROUP_DESC: |
| groupDescStats = publishGroupDescStats(dpid, |
| (OFGroupDescStatsReply) reply); |
| if (groupDescStats != null) { |
| OFGroupDescStatsReply.Builder rep = |
| OFFactories.getFactory(msg.getVersion()).buildGroupDescStatsReply(); |
| rep.setEntries(Lists.newLinkedList(groupDescStats)); |
| rep.setXid(reply.getXid()); |
| executorMsgs.execute(new OFMessageHandler(dpid, rep.build())); |
| } |
| break; |
| case PORT: |
| executorMsgs.execute(new OFMessageHandler(dpid, reply)); |
| break; |
| case METER: |
| executorMsgs.execute(new OFMessageHandler(dpid, reply)); |
| break; |
| case EXPERIMENTER: |
| if (reply instanceof OFCalientFlowStatsReply) { |
| // Convert Calient flow statistics to regular flow stats |
| // TODO: parse remaining fields such as power levels etc. when we have proper monitoring API |
| if (sw == null) { |
| log.error("Switch {} is not found", dpid); |
| break; |
| } |
| OFFlowStatsReply.Builder fsr = sw.factory().buildFlowStatsReply(); |
| List<OFFlowStatsEntry> entries = new LinkedList<>(); |
| for (OFCalientFlowStatsEntry entry : ((OFCalientFlowStatsReply) msg).getEntries()) { |
| |
| // Single instruction, i.e., output to port |
| OFActionOutput action = OFFactories |
| .getFactory(msg.getVersion()) |
| .actions() |
| .buildOutput() |
| .setPort(entry.getOutPort()) |
| .build(); |
| OFInstruction instruction = OFFactories |
| .getFactory(msg.getVersion()) |
| .instructions() |
| .applyActions(Collections.singletonList(action)); |
| OFFlowStatsEntry fs = sw.factory().buildFlowStatsEntry() |
| .setMatch(entry.getMatch()) |
| .setTableId(entry.getTableId()) |
| .setDurationSec(entry.getDurationSec()) |
| .setDurationNsec(entry.getDurationNsec()) |
| .setPriority(entry.getPriority()) |
| .setIdleTimeout(entry.getIdleTimeout()) |
| .setHardTimeout(entry.getHardTimeout()) |
| .setFlags(entry.getFlags()) |
| .setCookie(entry.getCookie()) |
| .setInstructions(Collections.singletonList(instruction)) |
| .build(); |
| entries.add(fs); |
| } |
| fsr.setEntries(entries); |
| |
| flowStats = publishFlowStats(dpid, fsr.build()); |
| if (flowStats != null) { |
| OFFlowStatsReply.Builder rep = |
| OFFactories.getFactory(msg.getVersion()).buildFlowStatsReply(); |
| rep.setEntries(Lists.newLinkedList(flowStats)); |
| executorMsgs.execute(new OFMessageHandler(dpid, rep.build())); |
| } |
| } else { |
| executorMsgs.execute(new OFMessageHandler(dpid, reply)); |
| } |
| break; |
| default: |
| log.warn("Discarding unknown stats reply type {}", reply.getStatsType()); |
| break; |
| } |
| break; |
| case BARRIER_REPLY: |
| if (errorMsgs.containsKey(msg.getXid())) { |
| //To make oferror msg handling and corresponding barrier reply serialized, |
| // executorErrorMsgs is used for both transaction |
| errorMsgs.remove(msg.getXid()); |
| executorErrorMsgs.execute(new OFMessageHandler(dpid, msg)); |
| } else { |
| executorBarrier.execute(new OFMessageHandler(dpid, msg)); |
| } |
| break; |
| case EXPERIMENTER: |
| if (sw == null) { |
| log.error("Switch {} is not found", dpid); |
| break; |
| } |
| long experimenter = ((OFExperimenter) msg).getExperimenter(); |
| if (experimenter == 0x748771) { |
| // LINC-OE port stats |
| OFCircuitPortStatus circuitPortStatus = (OFCircuitPortStatus) msg; |
| OFPortStatus.Builder portStatus = sw.factory().buildPortStatus(); |
| OFPortDesc.Builder portDesc = sw.factory().buildPortDesc(); |
| portDesc.setPortNo(circuitPortStatus.getPortNo()) |
| .setHwAddr(circuitPortStatus.getHwAddr()) |
| .setName(circuitPortStatus.getName()) |
| .setConfig(circuitPortStatus.getConfig()) |
| .setState(circuitPortStatus.getState()); |
| portStatus.setReason(circuitPortStatus.getReason()).setDesc(portDesc.build()); |
| for (OpenFlowSwitchListener l : ofSwitchListener) { |
| l.portChanged(dpid, portStatus.build()); |
| } |
| } else { |
| log.warn("Handling experimenter type {} not yet implemented", |
| ((OFExperimenter) msg).getExperimenter(), msg); |
| } |
| break; |
| default: |
| log.warn("Handling message type {} not yet implemented {}", |
| msg.getType(), msg); |
| } |
| } |
| |
| private synchronized Collection<OFFlowStatsEntry> publishFlowStats(Dpid dpid, |
| OFFlowStatsReply reply) { |
| //TODO: Get rid of synchronized |
| fullFlowStats.putAll(dpid, reply.getEntries()); |
| if (!reply.getFlags().contains(OFStatsReplyFlags.REPLY_MORE)) { |
| return fullFlowStats.removeAll(dpid); |
| } |
| return null; |
| } |
| |
| private synchronized Collection<OFTableStatsEntry> publishTableStats(Dpid dpid, |
| OFTableStatsReply reply) { |
| //TODO: Get rid of synchronized |
| fullTableStats.putAll(dpid, reply.getEntries()); |
| if (!reply.getFlags().contains(OFStatsReplyFlags.REPLY_MORE)) { |
| return fullTableStats.removeAll(dpid); |
| } |
| return null; |
| } |
| |
| private synchronized Collection<OFGroupStatsEntry> publishGroupStats(Dpid dpid, |
| OFGroupStatsReply reply) { |
| //TODO: Get rid of synchronized |
| fullGroupStats.putAll(dpid, reply.getEntries()); |
| if (!reply.getFlags().contains(OFStatsReplyFlags.REPLY_MORE)) { |
| return fullGroupStats.removeAll(dpid); |
| } |
| return null; |
| } |
| |
| private synchronized Collection<OFGroupDescStatsEntry> publishGroupDescStats(Dpid dpid, |
| OFGroupDescStatsReply reply) { |
| //TODO: Get rid of synchronized |
| fullGroupDescStats.putAll(dpid, reply.getEntries()); |
| if (!reply.getFlags().contains(OFStatsReplyFlags.REPLY_MORE)) { |
| return fullGroupDescStats.removeAll(dpid); |
| } |
| return null; |
| } |
| |
| private synchronized Collection<OFPortStatsEntry> publishPortStats(Dpid dpid, |
| OFPortStatsReply reply) { |
| fullPortStats.putAll(dpid, reply.getEntries()); |
| if (!reply.getFlags().contains(OFStatsReplyFlags.REPLY_MORE)) { |
| return fullPortStats.removeAll(dpid); |
| } |
| return null; |
| } |
| |
| @Override |
| public void setRole(Dpid dpid, RoleState role) { |
| final OpenFlowSwitch sw = getSwitch(dpid); |
| if (sw == null) { |
| log.debug("Switch not connected. Ignoring setRole({}, {})", dpid, role); |
| return; |
| } |
| sw.setRole(role); |
| } |
| |
| class InternalDeviceListener implements DeviceListener { |
| |
| @Override |
| public boolean isRelevant(DeviceEvent event) { |
| return event.type() == Type.DEVICE_REMOVED; |
| } |
| |
| @Override |
| public void event(DeviceEvent event) { |
| switch (event.type()) { |
| case DEVICE_ADDED: |
| break; |
| case DEVICE_AVAILABILITY_CHANGED: |
| break; |
| case DEVICE_REMOVED: |
| // Device administratively removed, disconnect |
| Optional.ofNullable(getSwitch(dpid(event.subject().id().uri()))) |
| .ifPresent(OpenFlowSwitch::disconnectSwitch); |
| break; |
| case DEVICE_SUSPENDED: |
| break; |
| case DEVICE_UPDATED: |
| break; |
| case PORT_ADDED: |
| break; |
| case PORT_REMOVED: |
| break; |
| case PORT_STATS_UPDATED: |
| break; |
| case PORT_UPDATED: |
| break; |
| default: |
| break; |
| |
| } |
| |
| } |
| |
| } |
| |
| /** |
| * Implementation of an OpenFlow Agent which is responsible for |
| * keeping track of connected switches and the state in which |
| * they are. |
| */ |
| public class OpenFlowSwitchAgent implements OpenFlowAgent { |
| |
| private final Logger log = LoggerFactory.getLogger(OpenFlowSwitchAgent.class); |
| private final Lock switchLock = new ReentrantLock(); |
| |
| @Override |
| public boolean addConnectedSwitch(Dpid dpid, OpenFlowSwitch sw) { |
| |
| if (connectedSwitches.get(dpid) != null) { |
| log.error("Trying to add connectedSwitch but found a previous " |
| + "value for dpid: {}", dpid); |
| return false; |
| } else { |
| log.info("Added switch {}", dpid); |
| connectedSwitches.put(dpid, sw); |
| for (OpenFlowSwitchListener l : ofSwitchListener) { |
| l.switchAdded(dpid); |
| } |
| return true; |
| } |
| } |
| |
| @Override |
| public boolean validActivation(Dpid dpid) { |
| if (connectedSwitches.get(dpid) == null) { |
| log.error("Trying to activate switch but is not in " |
| + "connected switches: dpid {}. Aborting ..", |
| dpid); |
| return false; |
| } |
| if (activeMasterSwitches.get(dpid) != null || |
| activeEqualSwitches.get(dpid) != null) { |
| log.error("Trying to activate switch but it is already " |
| + "activated: dpid {}. Found in activeMaster: {} " |
| + "Found in activeEqual: {}. Aborting ..", |
| dpid, |
| (activeMasterSwitches.get(dpid) == null) ? 'N' : 'Y', |
| (activeEqualSwitches.get(dpid) == null) ? 'N' : 'Y'); |
| return false; |
| } |
| return true; |
| } |
| |
| |
| @Override |
| public boolean addActivatedMasterSwitch(Dpid dpid, OpenFlowSwitch sw) { |
| switchLock.lock(); |
| try { |
| if (!validActivation(dpid)) { |
| return false; |
| } |
| activeMasterSwitches.put(dpid, sw); |
| return true; |
| } finally { |
| switchLock.unlock(); |
| } |
| } |
| |
| @Override |
| public boolean addActivatedEqualSwitch(Dpid dpid, OpenFlowSwitch sw) { |
| switchLock.lock(); |
| try { |
| if (!validActivation(dpid)) { |
| return false; |
| } |
| activeEqualSwitches.put(dpid, sw); |
| log.info("Added Activated EQUAL Switch {}", dpid); |
| return true; |
| } finally { |
| switchLock.unlock(); |
| } |
| } |
| |
| @Override |
| public void transitionToMasterSwitch(Dpid dpid) { |
| switchLock.lock(); |
| try { |
| if (activeMasterSwitches.containsKey(dpid)) { |
| return; |
| } |
| OpenFlowSwitch sw = activeEqualSwitches.remove(dpid); |
| if (sw == null) { |
| sw = getSwitch(dpid); |
| if (sw == null) { |
| log.error("Transition to master called on sw {}, but switch " |
| + "was not found in controller-cache", dpid); |
| return; |
| } |
| } |
| log.info("Transitioned switch {} to MASTER", dpid); |
| activeMasterSwitches.put(dpid, sw); |
| } finally { |
| switchLock.unlock(); |
| } |
| } |
| |
| |
| @Override |
| public void transitionToEqualSwitch(Dpid dpid) { |
| switchLock.lock(); |
| try { |
| if (activeEqualSwitches.containsKey(dpid)) { |
| return; |
| } |
| OpenFlowSwitch sw = activeMasterSwitches.remove(dpid); |
| if (sw == null) { |
| sw = getSwitch(dpid); |
| if (sw == null) { |
| log.error("Transition to equal called on sw {}, but switch " |
| + "was not found in controller-cache", dpid); |
| return; |
| } |
| } |
| log.info("Transitioned switch {} to EQUAL", dpid); |
| activeEqualSwitches.put(dpid, sw); |
| } finally { |
| switchLock.unlock(); |
| } |
| |
| } |
| |
| @Override |
| public void removeConnectedSwitch(Dpid dpid) { |
| connectedSwitches.remove(dpid); |
| OpenFlowSwitch sw = activeMasterSwitches.remove(dpid); |
| if (sw == null) { |
| log.debug("sw was null for {}", dpid); |
| sw = activeEqualSwitches.remove(dpid); |
| } |
| for (OpenFlowSwitchListener l : ofSwitchListener) { |
| l.switchRemoved(dpid); |
| } |
| } |
| |
| @Override |
| public void processDownstreamMessage(Dpid dpid, List<OFMessage> m) { |
| for (OpenFlowMessageListener listener : ofMessageListener) { |
| listener.handleOutgoingMessage(dpid, m); |
| } |
| } |
| |
| |
| @Override |
| public void processMessage(Dpid dpid, OFMessage m) { |
| processPacket(dpid, m); |
| |
| for (OpenFlowMessageListener listener : ofMessageListener) { |
| listener.handleIncomingMessage(dpid, m); |
| } |
| } |
| |
| @Override |
| public void returnRoleReply(Dpid dpid, RoleState requested, RoleState response) { |
| for (OpenFlowSwitchListener l : ofSwitchListener) { |
| l.receivedRoleReply(dpid, requested, response); |
| } |
| } |
| } |
| |
| /** |
| * OpenFlow message handler. |
| */ |
| protected final class OFMessageHandler implements Runnable { |
| |
| protected final OFMessage msg; |
| protected final Dpid dpid; |
| |
| public OFMessageHandler(Dpid dpid, OFMessage msg) { |
| this.msg = msg; |
| this.dpid = dpid; |
| } |
| |
| @Override |
| public void run() { |
| for (OpenFlowEventListener listener : ofEventListener) { |
| listener.handleMessage(dpid, msg); |
| } |
| } |
| } |
| } |