openstack/net-virt-providers/src/main/java/org/opendaylight/ovsdb/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.ovsdb.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.List;
  15
  16 import org.opendaylight.ovsdb.openstack.netvirt.api.Action;
  17 import org.opendaylight.ovsdb.openstack.netvirt.api.L3ForwardingProvider;
  18 import org.opendaylight.ovsdb.openstack.netvirt.api.Status;
  19 import org.opendaylight.ovsdb.openstack.netvirt.api.StatusCode;
  20 import org.opendaylight.ovsdb.openstack.netvirt.providers.ConfigInterface;
  21 import org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.AbstractServiceInstance;
  22 import org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.Service;
  23 import org.opendaylight.ovsdb.utils.mdsal.openflow.FlowUtils;
  24 import org.opendaylight.ovsdb.utils.mdsal.openflow.InstructionUtils;
  25 import org.opendaylight.ovsdb.utils.mdsal.openflow.MatchUtils;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev100924.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.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36
  37 import com.google.common.collect.Lists;
  38 import org.osgi.framework.BundleContext;
  39 import org.osgi.framework.ServiceReference;
  40
  41 public class L3ForwardingService extends AbstractServiceInstance implements L3ForwardingProvider, ConfigInterface {
  42     private static final Logger LOG = LoggerFactory.getLogger(L3ForwardingService.class);
  43
  44     public L3ForwardingService() {
  45         super(Service.L3_FORWARDING);
  46     }
  47
  48     public L3ForwardingService(Service service) {
  49         super(service);
  50     }
  51
  52     @Override
  53     public Status programForwardingTableEntry(Long dpid, String segmentationId, InetAddress ipAddress,
  54                                               String macAddress, Action action) {
  55         if (ipAddress instanceof Inet6Address) {
  56             // WORKAROUND: For now ipv6 is not supported
  57             // TODO: implement ipv6 case
  58             LOG.debug("ipv6 address is not implemented yet. dpid {} segmentationId {} ipAddress {} macAddress {} Action {}",
  59                       dpid, segmentationId, ipAddress, macAddress, action);
  60             return new Status(StatusCode.NOTIMPLEMENTED);
  61         }
  62
  63         NodeBuilder nodeBuilder = FlowUtils.createNodeBuilder(dpid);
  64         FlowBuilder flowBuilder = new FlowBuilder();
  65         String flowName = "L3Forwarding_" + segmentationId + "_" + ipAddress.getHostAddress();
  66         FlowUtils.initFlowBuilder(flowBuilder, flowName, getTable()).setPriority(1024);
  67
  68         MatchBuilder matchBuilder = new MatchBuilder();
  69         MatchUtils.createTunnelIDMatch(matchBuilder, new BigInteger(segmentationId));
  70         MatchUtils.createDstL3IPv4Match(matchBuilder, MatchUtils.iPv4PrefixFromIPv4Address(ipAddress.getHostAddress()));
  71
  72         flowBuilder.setMatch(matchBuilder.build());
  73
  74         if (action.equals(Action.ADD)) {
  75             // Instructions List Stores Individual Instructions
  76             InstructionsBuilder isb = new InstructionsBuilder();
  77             List<Instruction> instructions = Lists.newArrayList();
  78             InstructionBuilder ib = new InstructionBuilder();
  79
  80             // Set Dest Mac address
  81             InstructionUtils.createDlDstInstructions(ib, new MacAddress(macAddress));
  82             ib.setOrder(0);
  83             ib.setKey(new InstructionKey(0));
  84             instructions.add(ib.build());
  85
  86             // Goto Next Table
  87             ib = getMutablePipelineInstructionBuilder();
  88             ib.setOrder(1);
  89             ib.setKey(new InstructionKey(1));
  90             instructions.add(ib.build());
  91
  92             flowBuilder.setInstructions(isb.setInstruction(instructions).build());
  93
  94             writeFlow(flowBuilder, nodeBuilder);
  95         } else {
  96             removeFlow(flowBuilder, nodeBuilder);
  97         }
  98
  99         // ToDo: WriteFlow/RemoveFlow should return something we can use to check success
 100         return new Status(StatusCode.SUCCESS);
 101     }
 102
 103     @Override
 104     public void setDependencies(BundleContext bundleContext, ServiceReference serviceReference) {
 105         super.setDependencies(bundleContext.getServiceReference(L3ForwardingProvider.class.getName()), this);
 106     }
 107
 108     @Override
 109     public void setDependencies(Object impl) {
 110
 111     }
 112 }