| /* |
| * Copyright 2016-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.sdxl2; |
| |
| 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.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.apache.felix.scr.annotations.Service; |
| import org.onlab.packet.Ethernet; |
| import org.onlab.packet.ICMP6; |
| import org.onlab.packet.IPv6; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.edge.EdgePortService; |
| import org.onosproject.net.flow.DefaultTrafficSelector; |
| import org.onosproject.net.flow.TrafficSelector; |
| import org.onosproject.net.intent.IntentService; |
| import org.onosproject.net.intent.Key; |
| import org.onosproject.net.packet.InboundPacket; |
| import org.onosproject.net.packet.PacketContext; |
| import org.onosproject.net.packet.PacketProcessor; |
| import org.onosproject.net.packet.PacketService; |
| import org.osgi.service.component.ComponentContext; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Collections; |
| import java.util.Optional; |
| import java.util.Set; |
| import java.util.stream.Collectors; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static com.google.common.base.Preconditions.checkState; |
| import static org.onlab.packet.Ethernet.TYPE_ARP; |
| import static org.onlab.packet.Ethernet.TYPE_IPV6; |
| import static org.onlab.packet.ICMP6.NEIGHBOR_ADVERTISEMENT; |
| import static org.onlab.packet.ICMP6.NEIGHBOR_SOLICITATION; |
| import static org.onlab.packet.IPv6.PROTOCOL_ICMP6; |
| import static org.onosproject.net.packet.PacketPriority.CONTROL; |
| |
| |
| /** |
| * Implements SdxL2Service. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class SdxL2Manager implements SdxL2Service { |
| |
| private static final String SDXL2_APP = "org.onosproject.sdxl2"; |
| private static final String ERROR_ADD_VC_VLANS = |
| "Cannot create VC when CPs have different number of VLANs"; |
| private static final String ERROR_ADD_VC_VLANS_CLI = |
| "\u001B[0;31mError executing command: " + ERROR_ADD_VC_VLANS + "\u001B[0;49m"; |
| private static final String VC_0 = "MAC"; |
| private static Logger log = LoggerFactory.getLogger(SdxL2Manager.class); |
| private static final String ERROR_ADD_VC_CPS = "Unable to find %s and %s in sdxl2=%s"; |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected SdxL2Store sdxL2Store; |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected IntentService intentService; |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected EdgePortService edgePortService; |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected PacketService packetService; |
| protected SdxL2Processor processor = new SdxL2Processor(); |
| protected ApplicationId appId; |
| protected SdxL2MonitoringService monitoringManager; |
| protected SdxL2ArpNdpHandler arpndpHandler; |
| protected SdxL2VCService vcManager; |
| |
| |
| /** |
| * Activates the implementation of the SDX-L2 service. |
| * @param context ComponentContext object |
| */ |
| @Activate |
| protected void activate(ComponentContext context) { |
| appId = coreService.registerApplication(SDXL2_APP); |
| monitoringManager = new SdxL2MonitoringManager(appId, intentService, edgePortService); |
| SdxL2ArpNdpHandler.vcType = VC_0; |
| vcManager = new SdxL2MacVCManager(appId, sdxL2Store, intentService); |
| handleArpNdp(); |
| log.info("Started"); |
| } |
| |
| /** |
| * Deactivates the implementation of the SDX-L2 service. |
| */ |
| @Deactivate |
| protected void deactivate() { |
| this.cleanSdxL2(); |
| unhandleArpNdp(); |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void createSdxL2(String sdxl2) { |
| |
| checkNotNull(sdxl2, "sdxl2 name cannot be null"); |
| checkState(!sdxl2.contains(","), "sdxl2 names cannot contain commas"); |
| checkState(!sdxl2.contains("|"), "sdxl2 names cannot contain pipe"); |
| checkState(!sdxl2.contains("-"), "sdxl2 names cannot contain dash"); |
| checkState(!sdxl2.contains(":"), "sdxl2 names cannot contain colon"); |
| |
| try { |
| this.sdxL2Store.putSdxL2(sdxl2); |
| } catch (SdxL2Exception e) { |
| log.info(e.getMessage()); |
| } |
| } |
| |
| @Override |
| public void deleteSdxL2(String sdxl2) { |
| |
| checkNotNull(sdxl2, "sdxl2 name cannot be null"); |
| |
| try { |
| this.sdxL2Store.removeSdxL2(sdxl2); |
| } catch (SdxL2Exception e) { |
| log.info(e.getMessage()); |
| } |
| |
| } |
| |
| @Override |
| public Set<String> getSdxL2s() { |
| return this.sdxL2Store.getSdxL2s(); |
| } |
| |
| @Override |
| public void addSdxL2ConnectionPoint(String sdxl2, SdxL2ConnectionPoint sdxl2cp) { |
| |
| checkNotNull(sdxl2, "sdxl2 name cannot be null"); |
| checkNotNull(sdxl2cp, "SdxL2ConnectionPoint cannot be null"); |
| |
| try { |
| this.sdxL2Store.addSdxL2ConnectionPoint(sdxl2, sdxl2cp); |
| } catch (SdxL2Exception e) { |
| log.info(e.getMessage()); |
| } |
| |
| } |
| |
| @Override |
| public Set<String> getSdxL2ConnectionPoints(Optional<String> sdxl2) { |
| |
| try { |
| return this.sdxL2Store.getSdxL2ConnectionPoints(sdxl2); |
| } catch (SdxL2Exception e) { |
| log.info(e.getMessage()); |
| } |
| |
| return Collections.emptySet(); |
| } |
| |
| @Override |
| public void removeSdxL2ConnectionPoint(String sdxl2cp) { |
| |
| checkNotNull(sdxl2cp, "SdxL2ConnectionPoint name cannot be null"); |
| |
| try { |
| this.sdxL2Store.removeSdxL2ConnectionPoint(sdxl2cp); |
| } catch (SdxL2Exception e) { |
| log.info(e.getMessage()); |
| } |
| |
| } |
| |
| @Override |
| public void addVC(String sdxl2, String sdxl2cplhs, String sdxl2cprhs) { |
| SdxL2ConnectionPoint lhs = this.getSdxL2ConnectionPoint(sdxl2cplhs); |
| SdxL2ConnectionPoint rhs = this.getSdxL2ConnectionPoint(sdxl2cprhs); |
| |
| Set<String> cps = this.getSdxL2ConnectionPoints(Optional.of(sdxl2)) |
| .parallelStream() |
| .filter(cptemp -> (cptemp.equals(sdxl2cplhs) || cptemp.equals(sdxl2cprhs))) |
| .collect(Collectors.toSet()); |
| |
| checkState(cps.size() == 2, ERROR_ADD_VC_CPS, sdxl2cplhs, sdxl2cprhs, sdxl2); |
| |
| if ((lhs.vlanIds().size() != rhs.vlanIds().size()) && |
| (lhs.vlanIds().size() > 1 || rhs.vlanIds().size() > 1)) { |
| // User can correct this issue in the CLI. Show in console and log |
| System.err.println(ERROR_ADD_VC_VLANS_CLI); |
| log.info(ERROR_ADD_VC_VLANS); |
| return; |
| } |
| this.vcManager.addVC(sdxl2, lhs, rhs); |
| } |
| |
| @Override |
| public void removeVC(String vc) { |
| checkNotNull(vc, "VC name cannot be null"); |
| String[] splitKeyCPs = vc.split(":"); |
| checkState(splitKeyCPs.length == 2, "Bad name format $sdx:$something"); |
| String[] cps = splitKeyCPs[1].split("-"); |
| checkState(cps.length == 2, "Bad name format $sdx:$lhs-$rhs"); |
| |
| String lhsName = cps[0]; |
| String rhsName = cps[1]; |
| SdxL2ConnectionPoint lhs = this.getSdxL2ConnectionPoint(lhsName); |
| SdxL2ConnectionPoint rhs = this.getSdxL2ConnectionPoint(rhsName); |
| if (lhs == null || rhs == null) { |
| return; |
| } |
| |
| Set<String> cpsByVC = this.getSdxL2ConnectionPoints(Optional.of(splitKeyCPs[0])) |
| .parallelStream() |
| .filter(tempCP -> (tempCP.equals(lhs.name()) || tempCP.equals(rhs.name()))) |
| .collect(Collectors.toSet()); |
| |
| if (cpsByVC.size() != 2) { |
| return; |
| } |
| this.vcManager.removeVC(lhs, rhs); |
| } |
| |
| @Override |
| public SdxL2ConnectionPoint getSdxL2ConnectionPoint(String sdxl2cp) { |
| checkNotNull(sdxl2cp, "SdxL2ConnectionPoint name cannot be null"); |
| try { |
| return this.sdxL2Store.getSdxL2ConnectionPoint(sdxl2cp); |
| } catch (SdxL2Exception e) { |
| log.info(e.getMessage()); |
| } |
| return null; |
| } |
| |
| @Override |
| public Set<String> getVirtualCircuits(Optional<String> sdxl2) { |
| return this.vcManager.getVCs(sdxl2); |
| } |
| |
| @Override |
| public VirtualCircuit getVirtualCircuit(String sdxl2vc) { |
| checkNotNull(sdxl2vc, "VC name cannot be null"); |
| String[] splitKeyCPs = sdxl2vc.split(":"); |
| checkState(splitKeyCPs.length == 2, "Bad name format $sdx:$something"); |
| String[] cps = splitKeyCPs[1].split("-"); |
| checkState(cps.length == 2, "Bad name format $sdx:$lhs-$rhs"); |
| |
| SdxL2ConnectionPoint lhs = this.getSdxL2ConnectionPoint(cps[0]); |
| SdxL2ConnectionPoint rhs = this.getSdxL2ConnectionPoint(cps[1]); |
| VirtualCircuit vc = null; |
| if (lhs == null || rhs == null) { |
| return vc; |
| } |
| |
| String result = this.vcManager.getVC(lhs, rhs); |
| if (result != null) { |
| vc = new VirtualCircuit(lhs, rhs); |
| } |
| return vc; |
| } |
| |
| @Override |
| public SdxL2State getIntentState(Key intentKey) { |
| checkNotNull(intentKey, "Intent key cannot be null"); |
| return this.monitoringManager.getIntentState(intentKey); |
| } |
| |
| @Override |
| public SdxL2State getEdgePortState(ConnectPoint edgeport) { |
| checkNotNull(edgeport, "Edge port cannot be null"); |
| return this.monitoringManager.getEdgePortState(edgeport); |
| } |
| |
| /** |
| * Cleans the state of the Application. |
| */ |
| @Override |
| public void cleanSdxL2() { |
| this.monitoringManager.cleanup(); |
| } |
| |
| /** |
| * Requests ARP and NDP packets to the PacketService |
| * and registers the SDX-L2 PacketProcessor. |
| */ |
| private void handleArpNdp() { |
| SdxL2ArpNdpHandler.vcType = VC_0; |
| arpndpHandler = new SdxL2ArpNdpHandler(intentService, packetService, appId); |
| packetService.addProcessor(processor, PacketProcessor.director(1)); |
| |
| // ARP packet |
| TrafficSelector.Builder selectorBuilder = |
| DefaultTrafficSelector.builder(); |
| selectorBuilder.matchEthType(TYPE_ARP); |
| packetService.requestPackets(selectorBuilder.build(), |
| CONTROL, appId, Optional.<DeviceId>empty()); |
| |
| // IPv6 Neighbor Solicitation packet. |
| selectorBuilder = DefaultTrafficSelector.builder(); |
| selectorBuilder.matchEthType(TYPE_IPV6); |
| selectorBuilder.matchIPProtocol(PROTOCOL_ICMP6); |
| selectorBuilder.matchIcmpv6Type(NEIGHBOR_SOLICITATION); |
| packetService.requestPackets(selectorBuilder.build(), |
| CONTROL, appId, Optional.<DeviceId>empty()); |
| |
| // IPv6 Neighbor Advertisement packet. |
| selectorBuilder = DefaultTrafficSelector.builder(); |
| selectorBuilder.matchEthType(TYPE_IPV6); |
| selectorBuilder.matchIPProtocol(PROTOCOL_ICMP6); |
| selectorBuilder.matchIcmpv6Type(NEIGHBOR_ADVERTISEMENT); |
| packetService.requestPackets(selectorBuilder.build(), |
| CONTROL, appId, Optional.<DeviceId>empty()); |
| } |
| |
| /** |
| * Withdraws the requests for ARP/NDP packets and |
| * unregisters the SDX-L2 PacketProcessor. |
| */ |
| private void unhandleArpNdp() { |
| arpndpHandler = null; |
| packetService.removeProcessor(processor); |
| processor = null; |
| |
| TrafficSelector.Builder selectorBuilder = |
| DefaultTrafficSelector.builder(); |
| selectorBuilder.matchEthType(TYPE_ARP); |
| packetService.cancelPackets(selectorBuilder.build(), |
| CONTROL, appId, Optional.<DeviceId>empty()); |
| |
| selectorBuilder = DefaultTrafficSelector.builder(); |
| selectorBuilder.matchEthType(TYPE_IPV6); |
| selectorBuilder.matchIPProtocol(PROTOCOL_ICMP6); |
| selectorBuilder.matchIcmpv6Type(NEIGHBOR_SOLICITATION); |
| packetService.cancelPackets(selectorBuilder.build(), |
| CONTROL, appId, Optional.<DeviceId>empty()); |
| |
| selectorBuilder = DefaultTrafficSelector.builder(); |
| selectorBuilder.matchEthType(TYPE_IPV6); |
| selectorBuilder.matchIPProtocol(PROTOCOL_ICMP6); |
| selectorBuilder.matchIcmpv6Type(NEIGHBOR_ADVERTISEMENT); |
| packetService.cancelPackets(selectorBuilder.build(), |
| CONTROL, appId, Optional.<DeviceId>empty()); |
| } |
| |
| /** |
| * Packet processor responsible for forwarding packets along their paths. |
| */ |
| private class SdxL2Processor implements PacketProcessor { |
| |
| /** |
| * Processes the inbound packet as specified in the given context. |
| * |
| * @param context packet processing context |
| */ |
| @Override |
| public void process(PacketContext context) { |
| |
| /** Stop processing if the packet has been handled, since we |
| * can't do any more to it |
| */ |
| if (context.isHandled()) { |
| return; |
| } |
| |
| InboundPacket pkt = context.inPacket(); |
| Ethernet ethPkt = pkt.parsed(); |
| if (ethPkt == null) { |
| return; |
| } |
| |
| boolean handled = false; |
| if (ethPkt.getEtherType() == TYPE_ARP) { |
| //handle the arp packet. |
| handled = arpndpHandler.handlePacket(context); |
| } else if (ethPkt.getEtherType() == TYPE_IPV6) { |
| IPv6 ipv6Pkt = (IPv6) ethPkt.getPayload(); |
| if (ipv6Pkt.getNextHeader() == IPv6.PROTOCOL_ICMP6) { |
| ICMP6 icmp6Pkt = (ICMP6) ipv6Pkt.getPayload(); |
| if (icmp6Pkt.getIcmpType() == NEIGHBOR_SOLICITATION || |
| icmp6Pkt.getIcmpType() == NEIGHBOR_ADVERTISEMENT) { |
| // handle ICMPv6 solicitations and advertisements |
| handled = arpndpHandler.handlePacket(context); |
| } |
| } |
| } |
| |
| if (handled) { |
| context.block(); |
| } |
| |
| } |
| } |
| } |