openstack/net-virt-providers/src/main/java/org/opendaylight/ovsdb/openstack/netvirt/providers/openflow13/services/InboundNatService.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.InetAddress;
  13 import java.util.List;
  14
  15 import org.opendaylight.ovsdb.openstack.netvirt.api.Action;
  16 import org.opendaylight.ovsdb.openstack.netvirt.api.Constants;
  17 import org.opendaylight.ovsdb.openstack.netvirt.api.InboundNatProvider;
  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.OF13Provider;
  23 import org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.Service;
  24 import org.opendaylight.ovsdb.utils.mdsal.openflow.ActionUtils;
  25 import org.opendaylight.ovsdb.utils.mdsal.openflow.InstructionUtils;
  26 import org.opendaylight.ovsdb.utils.mdsal.openflow.MatchUtils;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Prefix;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.ActionBuilder;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowId;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowBuilder;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowKey;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.InstructionsBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionBuilder;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionKey;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeBuilder;
  38
  39 import com.google.common.collect.Lists;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg3;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.dst.choice.grouping.dst.choice.DstNxRegCaseBuilder;
  43 import org.osgi.framework.BundleContext;
  44 import org.osgi.framework.ServiceReference;
  45
  46 public class InboundNatService extends AbstractServiceInstance implements ConfigInterface, InboundNatProvider {
  47     public static final Class<? extends NxmNxReg> REG_FIELD = NxmNxReg3.class;
  48
  49     public InboundNatService() {
  50         super(Service.INBOUND_NAT);
  51     }
  52
  53     public InboundNatService(Service service) {
  54         super(service);
  55     }
  56
  57     @Override
  58     public Status programIpRewriteRule(Long dpid, Long inPort, String destSegId, InetAddress matchAddress,
  59                                        InetAddress rewriteAddress, Action action) {
  60         String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpid;
  61
  62         MatchBuilder matchBuilder = new MatchBuilder();
  63         NodeBuilder nodeBuilder = OF13Provider.createNodeBuilder(nodeName);
  64
  65         // Instructions List Stores Individual Instructions
  66         InstructionsBuilder isb = new InstructionsBuilder();
  67         List<Instruction> instructions = Lists.newArrayList();
  68         InstructionBuilder ib = new InstructionBuilder();
  69
  70         MatchUtils.createInPortMatch(matchBuilder, dpid, inPort);
  71         MatchUtils.createDstL3IPv4Match(matchBuilder, MatchUtils.iPv4PrefixFromIPv4Address(matchAddress.getHostAddress()));
  72
  73         // Set register to indicate that rewrite took place
  74         ActionBuilder actionBuilder = new ActionBuilder();
  75         actionBuilder.setAction(ActionUtils.nxLoadRegAction(new DstNxRegCaseBuilder().setNxReg(REG_FIELD).build(),
  76                 new BigInteger(destSegId)));
  77
  78         // Set Dest IP address and set REG_FIELD
  79         InstructionUtils.createNwDstInstructions(ib,
  80                 MatchUtils.iPv4PrefixFromIPv4Address(rewriteAddress.getHostAddress()), actionBuilder);
  81         ib.setOrder(0);
  82         ib.setKey(new InstructionKey(0));
  83         instructions.add(ib.build());
  84
  85         // Goto Next Table
  86         ib = getMutablePipelineInstructionBuilder();
  87         ib.setOrder(1);
  88         ib.setKey(new InstructionKey(1));
  89         instructions.add(ib.build());
  90
  91         FlowBuilder flowBuilder = new FlowBuilder();
  92         flowBuilder.setMatch(matchBuilder.build());
  93         flowBuilder.setInstructions(isb.setInstruction(instructions).build());
  94
  95         String flowId = "InboundNAT_" + inPort + "_" + destSegId + "_" + matchAddress.getHostAddress();
  96         flowBuilder.setId(new FlowId(flowId));
  97         FlowKey key = new FlowKey(new FlowId(flowId));
  98         flowBuilder.setBarrier(true);
  99         flowBuilder.setTableId(this.getTable());
 100         flowBuilder.setKey(key);
 101         flowBuilder.setPriority(1024);
 102         flowBuilder.setFlowName(flowId);
 103         flowBuilder.setHardTimeout(0);
 104         flowBuilder.setIdleTimeout(0);
 105
 106         if (action.equals(Action.ADD)) {
 107             writeFlow(flowBuilder, nodeBuilder);
 108         } else {
 109             removeFlow(flowBuilder, nodeBuilder);
 110         }
 111
 112         // ToDo: WriteFlow/RemoveFlow should return something we can use to check success
 113         return new Status(StatusCode.SUCCESS);
 114     }
 115
 116     @Override
 117     public Status programIpRewriteExclusion(Long dpid, String segmentationId, String excludedCidr,
 118                                             Action action) {
 119         String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpid;
 120
 121         MatchBuilder matchBuilder = new MatchBuilder();
 122         NodeBuilder nodeBuilder = OF13Provider.createNodeBuilder(nodeName);
 123
 124         // Instructions List Stores Individual Instructions
 125         InstructionsBuilder isb = new InstructionsBuilder();
 126         List<Instruction> instructions = Lists.newArrayList();
 127         InstructionBuilder ib;
 128
 129         MatchUtils.createTunnelIDMatch(matchBuilder, new BigInteger(segmentationId));
 130         MatchUtils.createDstL3IPv4Match(matchBuilder, new Ipv4Prefix(excludedCidr));
 131
 132         // Goto Next Table
 133         ib = getMutablePipelineInstructionBuilder();
 134         ib.setOrder(0);
 135         ib.setKey(new InstructionKey(0));
 136         instructions.add(ib.build());
 137
 138         FlowBuilder flowBuilder = new FlowBuilder();
 139         flowBuilder.setMatch(matchBuilder.build());
 140         flowBuilder.setInstructions(isb.setInstruction(instructions).build());
 141
 142         String flowId = "InboundNATExclusion_" + segmentationId + "_" + excludedCidr;
 143         flowBuilder.setId(new FlowId(flowId));
 144         FlowKey key = new FlowKey(new FlowId(flowId));
 145         flowBuilder.setBarrier(true);
 146         flowBuilder.setTableId(this.getTable());
 147         flowBuilder.setKey(key);
 148         flowBuilder.setPriority(1024);
 149         flowBuilder.setFlowName(flowId);
 150         flowBuilder.setHardTimeout(0);
 151         flowBuilder.setIdleTimeout(0);
 152
 153         if (action.equals(Action.ADD)) {
 154             writeFlow(flowBuilder, nodeBuilder);
 155         } else {
 156             removeFlow(flowBuilder, nodeBuilder);
 157         }
 158
 159         // ToDo: WriteFlow/RemoveFlow should return something we can use to check success
 160         return new Status(StatusCode.SUCCESS);
 161     }
 162
 163     @Override
 164     public void setDependencies(BundleContext bundleContext, ServiceReference serviceReference) {
 165         super.setDependencies(bundleContext.getServiceReference(InboundNatProvider.class.getName()), this);
 166     }
 167
 168     @Override
 169     public void setDependencies(Object impl) {}
 170 }