openstack/net-virt-providers/src/main/java/org/opendaylight/netvirt/openstack/netvirt/providers/openflow13/services/L3ForwardingService.java

   1 /*
   2  * Copyright (c) 2014, 2015 Red Hat, Inc. and others. All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.netvirt.openstack.netvirt.providers.openflow13.services;
  10
  11 import java.math.BigInteger;
  12 import java.net.Inet6Address;
  13 import java.net.InetAddress;
  14 import java.util.ArrayList;
  15 import java.util.List;
  16 import org.opendaylight.netvirt.openstack.netvirt.api.Action;
  17 import org.opendaylight.netvirt.openstack.netvirt.api.L3ForwardingProvider;
  18 import org.opendaylight.netvirt.openstack.netvirt.api.Status;
  19 import org.opendaylight.netvirt.openstack.netvirt.api.StatusCode;
  20 import org.opendaylight.netvirt.openstack.netvirt.providers.ConfigInterface;
  21 import org.opendaylight.netvirt.openstack.netvirt.providers.openflow13.AbstractServiceInstance;
  22 import org.opendaylight.netvirt.openstack.netvirt.providers.openflow13.Service;
  23 import org.opendaylight.netvirt.utils.mdsal.openflow.FlowUtils;
  24 import org.opendaylight.netvirt.utils.mdsal.openflow.InstructionUtils;
  25 import org.opendaylight.netvirt.utils.mdsal.openflow.MatchUtils;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.MacAddress;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowBuilder;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.InstructionsBuilder;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionKey;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeBuilder;
  34 import org.osgi.framework.BundleContext;
  35 import org.osgi.framework.ServiceReference;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 public class L3ForwardingService extends AbstractServiceInstance implements L3ForwardingProvider, ConfigInterface {
  40     private static final Logger LOG = LoggerFactory.getLogger(L3ForwardingService.class);
  41
  42     public L3ForwardingService() {
  43         super(Service.L3_FORWARDING);
  44     }
  45
  46     public L3ForwardingService(Service service) {
  47         super(service);
  48     }
  49
  50     @Override
  51     public Status programForwardingTableEntry(Long dpid, String segmentationId, InetAddress ipAddress,
  52                                               String macAddress, Action action) {
  53         if (ipAddress instanceof Inet6Address) {
  54             // WORKAROUND: For now ipv6 is not supported
  55             // TODO: implement ipv6 case
  56             LOG.debug("ipv6 address is not implemented yet. dpid {} segmentationId {} ipAddress {} macAddress {} Action {}",
  57                       dpid, segmentationId, ipAddress, macAddress, action);
  58             return new Status(StatusCode.NOTIMPLEMENTED);
  59         }
  60
  61         NodeBuilder nodeBuilder = FlowUtils.createNodeBuilder(dpid);
  62         FlowBuilder flowBuilder = new FlowBuilder();
  63         String flowName = "L3Forwarding_" + segmentationId + "_" + ipAddress.getHostAddress();
  64         FlowUtils.initFlowBuilder(flowBuilder, flowName, getTable()).setPriority(1024);
  65
  66         MatchBuilder matchBuilder = new MatchBuilder();
  67         MatchUtils.createTunnelIDMatch(matchBuilder, new BigInteger(segmentationId));
  68         MatchUtils.createDstL3IPv4Match(matchBuilder, MatchUtils.iPv4PrefixFromIPv4Address(ipAddress.getHostAddress()));
  69
  70         flowBuilder.setMatch(matchBuilder.build());
  71
  72         if (action.equals(Action.ADD)) {
  73             // Instructions List Stores Individual Instructions
  74             InstructionsBuilder isb = new InstructionsBuilder();
  75             List<Instruction> instructions = new ArrayList<>();
  76             InstructionBuilder ib = new InstructionBuilder();
  77
  78             // Set Dest Mac address
  79             InstructionUtils.createDlDstInstructions(ib, new MacAddress(macAddress));
  80             ib.setOrder(0);
  81             ib.setKey(new InstructionKey(0));
  82             instructions.add(ib.build());
  83
  84             // Goto Next Table
  85             ib = getMutablePipelineInstructionBuilder();
  86             ib.setOrder(1);
  87             ib.setKey(new InstructionKey(1));
  88             instructions.add(ib.build());
  89
  90             flowBuilder.setInstructions(isb.setInstruction(instructions).build());
  91
  92             writeFlow(flowBuilder, nodeBuilder);
  93         } else {
  94             removeFlow(flowBuilder, nodeBuilder);
  95         }
  96
  97         // ToDo: WriteFlow/RemoveFlow should return something we can use to check success
  98         return new Status(StatusCode.SUCCESS);
  99     }
 100
 101     @Override
 102     public void setDependencies(BundleContext bundleContext, ServiceReference serviceReference) {
 103         super.setDependencies(bundleContext.getServiceReference(L3ForwardingProvider.class.getName()), this);
 104     }
 105
 106     @Override
 107     public void setDependencies(Object impl) {
 108
 109     }
 110 }