| package net.onrc.onos.core.flowprogrammer; |
| |
| import java.io.IOException; |
| import java.util.ArrayDeque; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.EnumSet; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Queue; |
| import java.util.Set; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.locks.Condition; |
| import java.util.concurrent.locks.Lock; |
| import java.util.concurrent.locks.ReentrantLock; |
| |
| import net.floodlightcontroller.core.FloodlightContext; |
| import net.floodlightcontroller.core.IFloodlightProviderService; |
| import net.floodlightcontroller.core.IOFMessageListener; |
| import net.floodlightcontroller.core.IOFSwitch; |
| import net.floodlightcontroller.core.internal.OFMessageFuture; |
| import net.floodlightcontroller.core.module.FloodlightModuleContext; |
| import net.floodlightcontroller.threadpool.IThreadPoolService; |
| import net.floodlightcontroller.util.MACAddress; |
| import net.floodlightcontroller.util.OFMessageDamper; |
| import net.onrc.onos.core.util.FlowEntry; |
| import net.onrc.onos.core.util.FlowEntryAction; |
| import net.onrc.onos.core.util.FlowEntryAction.ActionEnqueue; |
| import net.onrc.onos.core.util.FlowEntryAction.ActionOutput; |
| import net.onrc.onos.core.util.FlowEntryAction.ActionSetEthernetAddr; |
| import net.onrc.onos.core.util.FlowEntryAction.ActionSetIPv4Addr; |
| import net.onrc.onos.core.util.FlowEntryAction.ActionSetIpToS; |
| import net.onrc.onos.core.util.FlowEntryAction.ActionSetTcpUdpPort; |
| import net.onrc.onos.core.util.FlowEntryAction.ActionSetVlanId; |
| import net.onrc.onos.core.util.FlowEntryAction.ActionSetVlanPriority; |
| import net.onrc.onos.core.util.FlowEntryAction.ActionStripVlan; |
| import net.onrc.onos.core.util.FlowEntryActions; |
| import net.onrc.onos.core.util.FlowEntryMatch; |
| import net.onrc.onos.core.util.FlowEntryUserState; |
| import net.onrc.onos.core.util.IPv4Net; |
| import net.onrc.onos.core.util.Pair; |
| import net.onrc.onos.core.util.Port; |
| |
| import org.openflow.protocol.OFBarrierReply; |
| import org.openflow.protocol.OFBarrierRequest; |
| import org.openflow.protocol.OFFlowMod; |
| import org.openflow.protocol.OFMatch; |
| import org.openflow.protocol.OFMessage; |
| import org.openflow.protocol.OFPacketOut; |
| import org.openflow.protocol.OFPort; |
| import org.openflow.protocol.OFType; |
| import org.openflow.protocol.action.OFAction; |
| import org.openflow.protocol.action.OFActionDataLayerDestination; |
| import org.openflow.protocol.action.OFActionDataLayerSource; |
| import org.openflow.protocol.action.OFActionEnqueue; |
| import org.openflow.protocol.action.OFActionNetworkLayerDestination; |
| import org.openflow.protocol.action.OFActionNetworkLayerSource; |
| import org.openflow.protocol.action.OFActionNetworkTypeOfService; |
| import org.openflow.protocol.action.OFActionOutput; |
| import org.openflow.protocol.action.OFActionStripVirtualLan; |
| import org.openflow.protocol.action.OFActionTransportLayerDestination; |
| import org.openflow.protocol.action.OFActionTransportLayerSource; |
| import org.openflow.protocol.action.OFActionVirtualLanIdentifier; |
| import org.openflow.protocol.action.OFActionVirtualLanPriorityCodePoint; |
| import org.openflow.protocol.factory.BasicFactory; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * FlowPusher is a implementation of FlowPusherService. |
| * FlowPusher assigns one message queue instance for each one switch. |
| * Number of message processing threads is configurable by constructor, and |
| * one thread can handle multiple message queues. Each queue will be assigned to |
| * a thread according to hash function defined by getHash(). |
| * Each processing thread reads messages from queues and sends it to switches |
| * in round-robin. Processing thread also calculates rate of sending to suppress |
| * excessive message sending. |
| * |
| * @author Naoki Shiota |
| */ |
| public class FlowPusher implements IFlowPusherService, IOFMessageListener { |
| private static final Logger log = LoggerFactory.getLogger(FlowPusher.class); |
| protected static final int DEFAULT_NUMBER_THREAD = 1; |
| |
| // TODO: Values copied from elsewhere (class LearningSwitch). |
| // The local copy should go away! |
| // |
| protected static final int OFMESSAGE_DAMPER_CAPACITY = 50000; // TODO: find sweet spot |
| protected static final int OFMESSAGE_DAMPER_TIMEOUT = 250; // ms |
| |
| // Number of messages sent to switch at once |
| protected static final int MAX_MESSAGE_SEND = 100; |
| |
| private static class SwitchQueueEntry { |
| OFMessage msg; |
| |
| public SwitchQueueEntry(OFMessage msg) { |
| this.msg = msg; |
| } |
| |
| public OFMessage getOFMessage() { |
| return msg; |
| } |
| } |
| |
| /** |
| * SwitchQueue represents message queue attached to a switch. |
| * This consists of queue itself and variables used for limiting sending rate. |
| * |
| * @author Naoki Shiota |
| */ |
| private class SwitchQueue { |
| List<Queue<SwitchQueueEntry>> rawQueues; |
| QueueState state; |
| |
| // Max rate of sending message (bytes/ms). 0 implies no limitation. |
| long maxRate = 0; // 0 indicates no limitation |
| long lastSentTime = 0; |
| long lastSentSize = 0; |
| |
| // "To be deleted" flag |
| boolean toBeDeleted = false; |
| |
| SwitchQueue() { |
| rawQueues = new ArrayList<Queue<SwitchQueueEntry>>( |
| MsgPriority.values().length); |
| for (int i = 0; i < MsgPriority.values().length; ++i) { |
| rawQueues.add(i, new ArrayDeque<SwitchQueueEntry>()); |
| } |
| |
| state = QueueState.READY; |
| } |
| |
| /** |
| * Check if sending rate is within the rate |
| * |
| * @param current Current time |
| * @return true if within the rate |
| */ |
| boolean isSendable(long current) { |
| if (maxRate == 0) { |
| // no limitation |
| return true; |
| } |
| |
| if (current == lastSentTime) { |
| return false; |
| } |
| |
| // Check if sufficient time (from aspect of rate) elapsed or not. |
| long rate = lastSentSize / (current - lastSentTime); |
| return (rate < maxRate); |
| } |
| |
| /** |
| * Log time and size of last sent data. |
| * |
| * @param current Time to be sent. |
| * @param size Size of sent data (in bytes). |
| */ |
| void logSentData(long current, long size) { |
| lastSentTime = current; |
| lastSentSize = size; |
| } |
| |
| boolean add(SwitchQueueEntry entry, MsgPriority priority) { |
| Queue<SwitchQueueEntry> queue = getQueue(priority); |
| if (queue == null) { |
| log.error("Unexpected priority : ", priority); |
| return false; |
| } |
| return queue.add(entry); |
| } |
| |
| /** |
| * Poll single appropriate entry object according to QueueState. |
| * |
| * @return Entry object. |
| */ |
| SwitchQueueEntry poll() { |
| switch (state) { |
| case READY: { |
| for (int i = 0; i < rawQueues.size(); ++i) { |
| SwitchQueueEntry entry = rawQueues.get(i).poll(); |
| if (entry != null) { |
| return entry; |
| } |
| } |
| |
| return null; |
| } |
| case SUSPENDED: { |
| // Only polling from high priority queue |
| SwitchQueueEntry entry = getQueue(MsgPriority.HIGH).poll(); |
| return entry; |
| } |
| default: |
| log.error("Unexpected QueueState : ", state); |
| return null; |
| } |
| } |
| |
| /** |
| * Check if this object has any messages in the queues to be sent |
| * |
| * @return True if there are some messages to be sent. |
| */ |
| boolean hasMessageToSend() { |
| switch (state) { |
| case READY: |
| for (Queue<SwitchQueueEntry> queue : rawQueues) { |
| if (!queue.isEmpty()) { |
| return true; |
| } |
| } |
| break; |
| case SUSPENDED: |
| // Only checking high priority queue |
| return (!getQueue(MsgPriority.HIGH).isEmpty()); |
| default: |
| log.error("Unexpected QueueState : ", state); |
| return false; |
| } |
| |
| return false; |
| } |
| |
| Queue<SwitchQueueEntry> getQueue(MsgPriority priority) { |
| return rawQueues.get(priority.ordinal()); |
| } |
| } |
| |
| /** |
| * BarrierInfo holds information to specify barrier message sent to switch. |
| * |
| * @author Naoki |
| */ |
| private static class BarrierInfo { |
| final long dpid; |
| final int xid; |
| |
| static BarrierInfo create(IOFSwitch sw, OFBarrierRequest req) { |
| return new BarrierInfo(sw.getId(), req.getXid()); |
| } |
| |
| static BarrierInfo create(IOFSwitch sw, OFBarrierReply rpy) { |
| return new BarrierInfo(sw.getId(), rpy.getXid()); |
| } |
| |
| private BarrierInfo(long dpid, int xid) { |
| this.dpid = dpid; |
| this.xid = xid; |
| } |
| |
| // Auto generated code by Eclipse |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + (int) (dpid ^ (dpid >>> 32)); |
| result = prime * result + xid; |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj == null) { |
| return false; |
| } |
| if (getClass() != obj.getClass()) { |
| return false; |
| } |
| |
| BarrierInfo other = (BarrierInfo) obj; |
| return (this.dpid == other.dpid) && (this.xid == other.xid); |
| } |
| |
| |
| } |
| |
| private OFMessageDamper messageDamper = null; |
| private IThreadPoolService threadPool = null; |
| |
| private FloodlightContext context = null; |
| private BasicFactory factory = null; |
| |
| // Map of threads versus dpid |
| private Map<Long, FlowPusherThread> threadMap = null; |
| // Map from (DPID and transaction ID) to Future objects. |
| private Map<BarrierInfo, OFBarrierReplyFuture> barrierFutures |
| = new ConcurrentHashMap<BarrierInfo, OFBarrierReplyFuture>(); |
| |
| private int numberThread; |
| |
| /** |
| * Main thread that reads messages from queues and sends them to switches. |
| * |
| * @author Naoki Shiota |
| */ |
| private class FlowPusherThread extends Thread { |
| private Map<IOFSwitch, SwitchQueue> assignedQueues |
| = new ConcurrentHashMap<IOFSwitch, SwitchQueue>(); |
| |
| final Lock queuingLock = new ReentrantLock(); |
| final Condition messagePushed = queuingLock.newCondition(); |
| |
| @Override |
| public void run() { |
| this.setName("FlowPusherThread " + this.getId()); |
| while (true) { |
| while (!queuesHasMessageToSend()) { |
| queuingLock.lock(); |
| |
| try { |
| // wait for message pushed to queue |
| messagePushed.await(); |
| } catch (InterruptedException e) { |
| // Interrupted to be shut down (not an error) |
| log.debug("FlowPusherThread is interrupted"); |
| return; |
| } finally { |
| queuingLock.unlock(); |
| } |
| } |
| |
| // for safety of concurrent access, copy set of key objects |
| Set<IOFSwitch> keys = new HashSet<IOFSwitch>(assignedQueues.size()); |
| for (IOFSwitch sw : assignedQueues.keySet()) { |
| keys.add(sw); |
| } |
| |
| for (IOFSwitch sw : keys) { |
| SwitchQueue queue = assignedQueues.get(sw); |
| |
| if (sw == null || queue == null) { |
| continue; |
| } |
| |
| synchronized (queue) { |
| processQueue(sw, queue, MAX_MESSAGE_SEND); |
| if (queue.toBeDeleted && !queue.hasMessageToSend()) { |
| // remove queue if flagged to be. |
| assignedQueues.remove(sw); |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * Read messages from queue and send them to the switch. |
| * If number of messages excess the limit, stop sending messages. |
| * |
| * @param sw Switch to which messages will be sent. |
| * @param queue Queue of messages. |
| * @param max_msg Limitation of number of messages to be sent. If set to 0, |
| * all messages in queue will be sent. |
| */ |
| private void processQueue(IOFSwitch sw, SwitchQueue queue, int max_msg) { |
| // check sending rate and determine it to be sent or not |
| long currentTime = System.currentTimeMillis(); |
| long size = 0; |
| |
| if (queue.isSendable(currentTime)) { |
| int i = 0; |
| while (queue.hasMessageToSend()) { |
| // Number of messages excess the limit |
| if (0 < max_msg && max_msg <= i) { |
| break; |
| } |
| ++i; |
| |
| SwitchQueueEntry queueEntry; |
| synchronized (queue) { |
| queueEntry = queue.poll(); |
| } |
| |
| OFMessage msg = queueEntry.getOFMessage(); |
| try { |
| messageDamper.write(sw, msg, context); |
| if (log.isTraceEnabled()) { |
| log.trace("Pusher sends message : {}", msg); |
| } |
| size += msg.getLength(); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| log.error("Exception in sending message ({}) : {}", msg, e); |
| } |
| } |
| |
| sw.flush(); |
| queue.logSentData(currentTime, size); |
| } |
| } |
| |
| private boolean queuesHasMessageToSend() { |
| for (SwitchQueue queue : assignedQueues.values()) { |
| if (queue.hasMessageToSend()) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| private void notifyMessagePushed() { |
| queuingLock.lock(); |
| try { |
| messagePushed.signal(); |
| } finally { |
| queuingLock.unlock(); |
| } |
| } |
| } |
| |
| /** |
| * Initialize object with one thread. |
| */ |
| public FlowPusher() { |
| numberThread = DEFAULT_NUMBER_THREAD; |
| } |
| |
| /** |
| * Initialize object with threads of given number. |
| * |
| * @param number_thread Number of threads to handle messages. |
| */ |
| public FlowPusher(int number_thread) { |
| if (number_thread > 0) { |
| this.numberThread = number_thread; |
| } else { |
| this.numberThread = DEFAULT_NUMBER_THREAD; |
| } |
| } |
| |
| /** |
| * Set parameters needed for sending messages. |
| * |
| * @param context FloodlightContext used for sending messages. |
| * If null, FlowPusher uses default context. |
| * @param modContext FloodlightModuleContext used for acquiring |
| * ThreadPoolService and registering MessageListener. |
| * @param factory Factory object to create OFMessage objects. |
| * @param damper Message damper used for sending messages. |
| * If null, FlowPusher creates its own damper object. |
| */ |
| public void init(FloodlightContext context, |
| FloodlightModuleContext modContext, |
| BasicFactory factory, |
| OFMessageDamper damper) { |
| this.context = context; |
| this.factory = factory; |
| this.threadPool = modContext.getServiceImpl(IThreadPoolService.class); |
| IFloodlightProviderService flservice |
| = modContext.getServiceImpl(IFloodlightProviderService.class); |
| flservice.addOFMessageListener(OFType.BARRIER_REPLY, this); |
| |
| if (damper != null) { |
| messageDamper = damper; |
| } else { |
| // use default values |
| messageDamper = new OFMessageDamper(OFMESSAGE_DAMPER_CAPACITY, |
| EnumSet.of(OFType.FLOW_MOD), |
| OFMESSAGE_DAMPER_TIMEOUT); |
| } |
| } |
| |
| /** |
| * Begin processing queue. |
| */ |
| public void start() { |
| if (factory == null) { |
| log.error("FlowPusher not yet initialized."); |
| return; |
| } |
| |
| threadMap = new HashMap<Long, FlowPusherThread>(); |
| for (long i = 0; i < numberThread; ++i) { |
| FlowPusherThread thread = new FlowPusherThread(); |
| |
| threadMap.put(i, thread); |
| thread.start(); |
| } |
| } |
| |
| @Override |
| public boolean suspend(IOFSwitch sw) { |
| SwitchQueue queue = getQueue(sw); |
| |
| if (queue == null) { |
| // create queue in case suspend is called before first message addition |
| queue = createQueueImpl(sw); |
| } |
| |
| synchronized (queue) { |
| if (queue.state == QueueState.READY) { |
| queue.state = QueueState.SUSPENDED; |
| return true; |
| } |
| return false; |
| } |
| } |
| |
| @Override |
| public boolean resume(IOFSwitch sw) { |
| SwitchQueue queue = getQueue(sw); |
| |
| if (queue == null) { |
| log.error("No queue is attached to DPID : {}", sw.getId()); |
| return false; |
| } |
| |
| synchronized (queue) { |
| if (queue.state == QueueState.SUSPENDED) { |
| queue.state = QueueState.READY; |
| |
| // Free the latch if queue has any messages |
| FlowPusherThread thread = getProcessingThread(sw); |
| if (queue.hasMessageToSend()) { |
| thread.notifyMessagePushed(); |
| } |
| return true; |
| } |
| return false; |
| } |
| } |
| |
| @Override |
| public QueueState getState(IOFSwitch sw) { |
| SwitchQueue queue = getQueue(sw); |
| |
| if (queue == null) { |
| return QueueState.UNKNOWN; |
| } |
| |
| return queue.state; |
| } |
| |
| /** |
| * Stop processing queue and exit thread. |
| */ |
| public void stop() { |
| if (threadMap == null) { |
| return; |
| } |
| |
| for (FlowPusherThread t : threadMap.values()) { |
| t.interrupt(); |
| } |
| } |
| |
| @Override |
| public void setRate(IOFSwitch sw, long rate) { |
| SwitchQueue queue = getQueue(sw); |
| if (queue == null) { |
| queue = createQueueImpl(sw); |
| } |
| |
| if (rate > 0) { |
| log.debug("rate for {} is set to {}", sw.getId(), rate); |
| synchronized (queue) { |
| queue.maxRate = rate; |
| } |
| } |
| } |
| |
| @Override |
| public boolean createQueue(IOFSwitch sw) { |
| SwitchQueue queue = createQueueImpl(sw); |
| |
| return (queue != null); |
| } |
| |
| protected SwitchQueue createQueueImpl(IOFSwitch sw) { |
| SwitchQueue queue = getQueue(sw); |
| if (queue != null) { |
| return queue; |
| } |
| |
| FlowPusherThread proc = getProcessingThread(sw); |
| queue = new SwitchQueue(); |
| queue.state = QueueState.READY; |
| proc.assignedQueues.put(sw, queue); |
| |
| return queue; |
| } |
| |
| @Override |
| public boolean deleteQueue(IOFSwitch sw) { |
| return deleteQueue(sw, false); |
| } |
| |
| @Override |
| public boolean deleteQueue(IOFSwitch sw, boolean forceStop) { |
| FlowPusherThread proc = getProcessingThread(sw); |
| |
| if (forceStop) { |
| SwitchQueue queue = proc.assignedQueues.remove(sw); |
| if (queue == null) { |
| return false; |
| } |
| return true; |
| } else { |
| SwitchQueue queue = getQueue(sw); |
| if (queue == null) { |
| return false; |
| } |
| synchronized (queue) { |
| queue.toBeDeleted = true; |
| } |
| return true; |
| } |
| } |
| |
| @Override |
| public boolean add(IOFSwitch sw, OFMessage msg) { |
| return add(sw, msg, MsgPriority.NORMAL); |
| } |
| |
| @Override |
| public boolean add(IOFSwitch sw, OFMessage msg, MsgPriority priority) { |
| return addMessageImpl(sw, msg, priority); |
| } |
| |
| @Override |
| public void pushFlowEntries( |
| Collection<Pair<IOFSwitch, FlowEntry>> entries) { |
| pushFlowEntries(entries, MsgPriority.NORMAL); |
| } |
| |
| @Override |
| public void pushFlowEntries( |
| Collection<Pair<IOFSwitch, FlowEntry>> entries, MsgPriority priority) { |
| |
| for (Pair<IOFSwitch, FlowEntry> entry : entries) { |
| add(entry.first, entry.second, priority); |
| } |
| } |
| |
| @Override |
| public void pushFlowEntry(IOFSwitch sw, FlowEntry flowEntry) { |
| pushFlowEntry(sw, flowEntry, MsgPriority.NORMAL); |
| } |
| |
| @Override |
| public void pushFlowEntry(IOFSwitch sw, FlowEntry flowEntry, MsgPriority priority) { |
| Collection<Pair<IOFSwitch, FlowEntry>> entries = |
| new LinkedList<Pair<IOFSwitch, FlowEntry>>(); |
| |
| entries.add(new Pair<IOFSwitch, FlowEntry>(sw, flowEntry)); |
| pushFlowEntries(entries, priority); |
| } |
| |
| /** |
| * Create a message from FlowEntry and add it to the queue of the switch. |
| * |
| * @param sw Switch to which message is pushed. |
| * @param flowEntry FlowEntry object used for creating message. |
| * @return true if message is successfully added to a queue. |
| */ |
| private boolean add(IOFSwitch sw, FlowEntry flowEntry, MsgPriority priority) { |
| // |
| // Create the OpenFlow Flow Modification Entry to push |
| // |
| OFFlowMod fm = (OFFlowMod) factory.getMessage(OFType.FLOW_MOD); |
| long cookie = flowEntry.flowEntryId().value(); |
| |
| short flowModCommand = OFFlowMod.OFPFC_ADD; |
| if (flowEntry.flowEntryUserState() == FlowEntryUserState.FE_USER_ADD) { |
| flowModCommand = OFFlowMod.OFPFC_ADD; |
| } else if (flowEntry.flowEntryUserState() == FlowEntryUserState.FE_USER_MODIFY) { |
| flowModCommand = OFFlowMod.OFPFC_MODIFY_STRICT; |
| } else if (flowEntry.flowEntryUserState() == FlowEntryUserState.FE_USER_DELETE) { |
| flowModCommand = OFFlowMod.OFPFC_DELETE_STRICT; |
| } else { |
| // Unknown user state. Ignore the entry |
| log.debug( |
| "Flow Entry ignored (FlowEntryId = {}): unknown user state {}", |
| flowEntry.flowEntryId(), |
| flowEntry.flowEntryUserState()); |
| return false; |
| } |
| |
| // |
| // Fetch the match conditions. |
| // |
| // NOTE: The Flow matching conditions common for all Flow Entries are |
| // used ONLY if a Flow Entry does NOT have the corresponding matching |
| // condition set. |
| // |
| OFMatch match = new OFMatch(); |
| match.setWildcards(OFMatch.OFPFW_ALL); |
| FlowEntryMatch flowEntryMatch = flowEntry.flowEntryMatch(); |
| |
| // Match the Incoming Port |
| Port matchInPort = flowEntryMatch.inPort(); |
| if (matchInPort != null) { |
| match.setInputPort(matchInPort.value()); |
| match.setWildcards(match.getWildcards() & ~OFMatch.OFPFW_IN_PORT); |
| } |
| |
| // Match the Source MAC address |
| MACAddress matchSrcMac = flowEntryMatch.srcMac(); |
| if (matchSrcMac != null) { |
| match.setDataLayerSource(matchSrcMac.toString()); |
| match.setWildcards(match.getWildcards() & ~OFMatch.OFPFW_DL_SRC); |
| } |
| |
| // Match the Destination MAC address |
| MACAddress matchDstMac = flowEntryMatch.dstMac(); |
| if (matchDstMac != null) { |
| match.setDataLayerDestination(matchDstMac.toString()); |
| match.setWildcards(match.getWildcards() & ~OFMatch.OFPFW_DL_DST); |
| } |
| |
| // Match the Ethernet Frame Type |
| Short matchEthernetFrameType = flowEntryMatch.ethernetFrameType(); |
| if (matchEthernetFrameType != null) { |
| match.setDataLayerType(matchEthernetFrameType); |
| match.setWildcards(match.getWildcards() & ~OFMatch.OFPFW_DL_TYPE); |
| } |
| |
| // Match the VLAN ID |
| Short matchVlanId = flowEntryMatch.vlanId(); |
| if (matchVlanId != null) { |
| match.setDataLayerVirtualLan(matchVlanId); |
| match.setWildcards(match.getWildcards() & ~OFMatch.OFPFW_DL_VLAN); |
| } |
| |
| // Match the VLAN priority |
| Byte matchVlanPriority = flowEntryMatch.vlanPriority(); |
| if (matchVlanPriority != null) { |
| match.setDataLayerVirtualLanPriorityCodePoint(matchVlanPriority); |
| match.setWildcards(match.getWildcards() |
| & ~OFMatch.OFPFW_DL_VLAN_PCP); |
| } |
| |
| // Match the Source IPv4 Network prefix |
| IPv4Net matchSrcIPv4Net = flowEntryMatch.srcIPv4Net(); |
| if (matchSrcIPv4Net != null) { |
| match.setFromCIDR(matchSrcIPv4Net.toString(), OFMatch.STR_NW_SRC); |
| } |
| |
| // Natch the Destination IPv4 Network prefix |
| IPv4Net matchDstIPv4Net = flowEntryMatch.dstIPv4Net(); |
| if (matchDstIPv4Net != null) { |
| match.setFromCIDR(matchDstIPv4Net.toString(), OFMatch.STR_NW_DST); |
| } |
| |
| // Match the IP protocol |
| Byte matchIpProto = flowEntryMatch.ipProto(); |
| if (matchIpProto != null) { |
| match.setNetworkProtocol(matchIpProto); |
| match.setWildcards(match.getWildcards() & ~OFMatch.OFPFW_NW_PROTO); |
| } |
| |
| // Match the IP ToS (DSCP field, 6 bits) |
| Byte matchIpToS = flowEntryMatch.ipToS(); |
| if (matchIpToS != null) { |
| match.setNetworkTypeOfService(matchIpToS); |
| match.setWildcards(match.getWildcards() & ~OFMatch.OFPFW_NW_TOS); |
| } |
| |
| // Match the Source TCP/UDP port |
| Short matchSrcTcpUdpPort = flowEntryMatch.srcTcpUdpPort(); |
| if (matchSrcTcpUdpPort != null) { |
| match.setTransportSource(matchSrcTcpUdpPort); |
| match.setWildcards(match.getWildcards() & ~OFMatch.OFPFW_TP_SRC); |
| } |
| |
| // Match the Destination TCP/UDP port |
| Short matchDstTcpUdpPort = flowEntryMatch.dstTcpUdpPort(); |
| if (matchDstTcpUdpPort != null) { |
| match.setTransportDestination(matchDstTcpUdpPort); |
| match.setWildcards(match.getWildcards() & ~OFMatch.OFPFW_TP_DST); |
| } |
| |
| // |
| // Fetch the actions |
| // |
| Short actionOutputPort = null; |
| List<OFAction> openFlowActions = new ArrayList<OFAction>(); |
| int actionsLen = 0; |
| FlowEntryActions flowEntryActions = flowEntry.flowEntryActions(); |
| // |
| for (FlowEntryAction action : flowEntryActions.actions()) { |
| ActionOutput actionOutput = action.actionOutput(); |
| ActionSetVlanId actionSetVlanId = action.actionSetVlanId(); |
| ActionSetVlanPriority actionSetVlanPriority = action |
| .actionSetVlanPriority(); |
| ActionStripVlan actionStripVlan = action.actionStripVlan(); |
| ActionSetEthernetAddr actionSetEthernetSrcAddr = action |
| .actionSetEthernetSrcAddr(); |
| ActionSetEthernetAddr actionSetEthernetDstAddr = action |
| .actionSetEthernetDstAddr(); |
| ActionSetIPv4Addr actionSetIPv4SrcAddr = action |
| .actionSetIPv4SrcAddr(); |
| ActionSetIPv4Addr actionSetIPv4DstAddr = action |
| .actionSetIPv4DstAddr(); |
| ActionSetIpToS actionSetIpToS = action.actionSetIpToS(); |
| ActionSetTcpUdpPort actionSetTcpUdpSrcPort = action |
| .actionSetTcpUdpSrcPort(); |
| ActionSetTcpUdpPort actionSetTcpUdpDstPort = action |
| .actionSetTcpUdpDstPort(); |
| ActionEnqueue actionEnqueue = action.actionEnqueue(); |
| |
| if (actionOutput != null) { |
| actionOutputPort = actionOutput.port().value(); |
| // XXX: The max length is hard-coded for now |
| OFActionOutput ofa = new OFActionOutput(actionOutput.port() |
| .value(), (short) 0xffff); |
| openFlowActions.add(ofa); |
| actionsLen += ofa.getLength(); |
| } |
| |
| if (actionSetVlanId != null) { |
| OFActionVirtualLanIdentifier ofa = new OFActionVirtualLanIdentifier( |
| actionSetVlanId.vlanId()); |
| openFlowActions.add(ofa); |
| actionsLen += ofa.getLength(); |
| } |
| |
| if (actionSetVlanPriority != null) { |
| OFActionVirtualLanPriorityCodePoint ofa = new OFActionVirtualLanPriorityCodePoint( |
| actionSetVlanPriority.vlanPriority()); |
| openFlowActions.add(ofa); |
| actionsLen += ofa.getLength(); |
| } |
| |
| if (actionStripVlan != null) { |
| if (actionStripVlan.stripVlan() == true) { |
| OFActionStripVirtualLan ofa = new OFActionStripVirtualLan(); |
| openFlowActions.add(ofa); |
| actionsLen += ofa.getLength(); |
| } |
| } |
| |
| if (actionSetEthernetSrcAddr != null) { |
| OFActionDataLayerSource ofa = new OFActionDataLayerSource( |
| actionSetEthernetSrcAddr.addr().toBytes()); |
| openFlowActions.add(ofa); |
| actionsLen += ofa.getLength(); |
| } |
| |
| if (actionSetEthernetDstAddr != null) { |
| OFActionDataLayerDestination ofa = new OFActionDataLayerDestination( |
| actionSetEthernetDstAddr.addr().toBytes()); |
| openFlowActions.add(ofa); |
| actionsLen += ofa.getLength(); |
| } |
| |
| if (actionSetIPv4SrcAddr != null) { |
| OFActionNetworkLayerSource ofa = new OFActionNetworkLayerSource( |
| actionSetIPv4SrcAddr.addr().value()); |
| openFlowActions.add(ofa); |
| actionsLen += ofa.getLength(); |
| } |
| |
| if (actionSetIPv4DstAddr != null) { |
| OFActionNetworkLayerDestination ofa = new OFActionNetworkLayerDestination( |
| actionSetIPv4DstAddr.addr().value()); |
| openFlowActions.add(ofa); |
| actionsLen += ofa.getLength(); |
| } |
| |
| if (actionSetIpToS != null) { |
| OFActionNetworkTypeOfService ofa = new OFActionNetworkTypeOfService( |
| actionSetIpToS.ipToS()); |
| openFlowActions.add(ofa); |
| actionsLen += ofa.getLength(); |
| } |
| |
| if (actionSetTcpUdpSrcPort != null) { |
| OFActionTransportLayerSource ofa = new OFActionTransportLayerSource( |
| actionSetTcpUdpSrcPort.port()); |
| openFlowActions.add(ofa); |
| actionsLen += ofa.getLength(); |
| } |
| |
| if (actionSetTcpUdpDstPort != null) { |
| OFActionTransportLayerDestination ofa = new OFActionTransportLayerDestination( |
| actionSetTcpUdpDstPort.port()); |
| openFlowActions.add(ofa); |
| actionsLen += ofa.getLength(); |
| } |
| |
| if (actionEnqueue != null) { |
| OFActionEnqueue ofa = new OFActionEnqueue(actionEnqueue.port() |
| .value(), actionEnqueue.queueId()); |
| openFlowActions.add(ofa); |
| actionsLen += ofa.getLength(); |
| } |
| } |
| |
| fm.setIdleTimeout((short) flowEntry.idleTimeout()) |
| .setHardTimeout((short) flowEntry.hardTimeout()) |
| .setPriority((short) flowEntry.priority()) |
| .setBufferId(OFPacketOut.BUFFER_ID_NONE).setCookie(cookie) |
| .setCommand(flowModCommand).setMatch(match) |
| .setActions(openFlowActions) |
| .setLengthU(OFFlowMod.MINIMUM_LENGTH + actionsLen); |
| fm.setOutPort(OFPort.OFPP_NONE.getValue()); |
| if ((flowModCommand == OFFlowMod.OFPFC_DELETE) |
| || (flowModCommand == OFFlowMod.OFPFC_DELETE_STRICT)) { |
| if (actionOutputPort != null) { |
| fm.setOutPort(actionOutputPort); |
| } |
| } |
| |
| // |
| // Set the OFPFF_SEND_FLOW_REM flag if the Flow Entry is not |
| // permanent. |
| // |
| if ((flowEntry.idleTimeout() != 0) || |
| (flowEntry.hardTimeout() != 0)) { |
| fm.setFlags(OFFlowMod.OFPFF_SEND_FLOW_REM); |
| } |
| |
| if (log.isTraceEnabled()) { |
| log.trace("Installing flow entry {} into switch DPID: {} flowEntryId: {} srcMac: {} dstMac: {} inPort: {} outPort: {}" |
| , flowEntry.flowEntryUserState() |
| , sw.getStringId() |
| , flowEntry.flowEntryId() |
| , matchSrcMac |
| , matchDstMac |
| , matchInPort |
| , actionOutputPort |
| ); |
| } |
| |
| return addMessageImpl(sw, fm, priority); |
| } |
| |
| /** |
| * Add message to queue |
| * |
| * @param sw |
| * @param msg |
| * @param flowEntryId |
| * @return |
| */ |
| protected boolean addMessageImpl(IOFSwitch sw, OFMessage msg, MsgPriority priority) { |
| FlowPusherThread thread = getProcessingThread(sw); |
| |
| SwitchQueue queue = getQueue(sw); |
| |
| // create queue at first addition of message |
| if (queue == null) { |
| queue = createQueueImpl(sw); |
| } |
| |
| SwitchQueueEntry entry = new SwitchQueueEntry(msg); |
| |
| synchronized (queue) { |
| queue.add(entry, priority); |
| if (log.isTraceEnabled()) { |
| log.trace("Message is pushed : {}", entry.getOFMessage()); |
| } |
| } |
| |
| thread.notifyMessagePushed(); |
| |
| return true; |
| } |
| |
| @Override |
| public OFBarrierReply barrier(IOFSwitch sw) { |
| OFMessageFuture<OFBarrierReply> future = barrierAsync(sw); |
| if (future == null) { |
| return null; |
| } |
| |
| try { |
| return future.get(); |
| } catch (InterruptedException e) { |
| e.printStackTrace(); |
| log.error("InterruptedException: {}", e); |
| return null; |
| } catch (ExecutionException e) { |
| e.printStackTrace(); |
| log.error("ExecutionException: {}", e); |
| return null; |
| } |
| } |
| |
| @Override |
| public OFBarrierReplyFuture barrierAsync(IOFSwitch sw) { |
| // TODO creation of message and future should be moved to OFSwitchImpl |
| |
| if (sw == null) { |
| return null; |
| } |
| |
| OFBarrierRequest msg = createBarrierRequest(sw); |
| |
| OFBarrierReplyFuture future = new OFBarrierReplyFuture(threadPool, sw, msg.getXid()); |
| barrierFutures.put(BarrierInfo.create(sw, msg), future); |
| |
| addMessageImpl(sw, msg, MsgPriority.NORMAL); |
| |
| return future; |
| } |
| |
| protected OFBarrierRequest createBarrierRequest(IOFSwitch sw) { |
| OFBarrierRequest msg = (OFBarrierRequest) factory.getMessage(OFType.BARRIER_REQUEST); |
| msg.setXid(sw.getNextTransactionId()); |
| |
| return msg; |
| } |
| |
| /** |
| * Get a queue attached to a switch. |
| * |
| * @param sw Switch object |
| * @return Queue object |
| */ |
| protected SwitchQueue getQueue(IOFSwitch sw) { |
| if (sw == null) { |
| return null; |
| } |
| |
| FlowPusherThread th = getProcessingThread(sw); |
| if (th == null) { |
| return null; |
| } |
| |
| return th.assignedQueues.get(sw); |
| } |
| |
| /** |
| * Get a hash value correspondent to a switch. |
| * |
| * @param sw Switch object |
| * @return Hash value |
| */ |
| protected long getHash(IOFSwitch sw) { |
| // This code assumes DPID is sequentially assigned. |
| // TODO consider equalization algorithm |
| return sw.getId() % numberThread; |
| } |
| |
| /** |
| * Get a Thread object which processes the queue attached to a switch. |
| * |
| * @param sw Switch object |
| * @return Thread object |
| */ |
| protected FlowPusherThread getProcessingThread(IOFSwitch sw) { |
| long hash = getHash(sw); |
| |
| return threadMap.get(hash); |
| } |
| |
| @Override |
| public String getName() { |
| return "flowpusher"; |
| } |
| |
| @Override |
| public boolean isCallbackOrderingPrereq(OFType type, String name) { |
| return false; |
| } |
| |
| @Override |
| public boolean isCallbackOrderingPostreq(OFType type, String name) { |
| return false; |
| } |
| |
| @Override |
| public Command receive(IOFSwitch sw, OFMessage msg, FloodlightContext cntx) { |
| if (log.isTraceEnabled()) { |
| log.trace("Received BARRIER_REPLY from : {}", sw.getId()); |
| } |
| |
| if (msg.getType() != OFType.BARRIER_REPLY) { |
| log.error("Unexpected reply message : {}", msg.getType()); |
| return Command.CONTINUE; |
| } |
| |
| OFBarrierReply reply = (OFBarrierReply) msg; |
| BarrierInfo info = BarrierInfo.create(sw, reply); |
| |
| // Deliver future if exists |
| OFBarrierReplyFuture future = barrierFutures.get(info); |
| if (future != null) { |
| future.deliverFuture(sw, msg); |
| barrierFutures.remove(info); |
| } |
| |
| return Command.CONTINUE; |
| } |
| } |