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.net.Inet6Address;
  14 import java.net.UnknownHostException;
  15 import java.util.List;
  16
  17 import org.opendaylight.ovsdb.openstack.netvirt.api.Action;
  18 import org.opendaylight.ovsdb.openstack.netvirt.api.Constants;
  19 import org.opendaylight.ovsdb.openstack.netvirt.api.InboundNatProvider;
  20 import org.opendaylight.ovsdb.openstack.netvirt.api.Status;
  21 import org.opendaylight.ovsdb.openstack.netvirt.api.StatusCode;
  22 import org.opendaylight.ovsdb.openstack.netvirt.providers.ConfigInterface;
  23 import org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.AbstractServiceInstance;
  24 import org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.OF13Provider;
  25 import org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.Service;
  26 import org.opendaylight.ovsdb.utils.mdsal.openflow.ActionUtils;
  27 import org.opendaylight.ovsdb.utils.mdsal.openflow.InstructionUtils;
  28 import org.opendaylight.ovsdb.utils.mdsal.openflow.MatchUtils;
  29 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Prefix;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.ActionBuilder;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowId;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowKey;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.InstructionsBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionBuilder;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionKey;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeBuilder;
  40
  41 import com.google.common.collect.Lists;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg3;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.dst.choice.grouping.dst.choice.DstNxRegCaseBuilder;
  45 import org.osgi.framework.BundleContext;
  46 import org.osgi.framework.ServiceReference;
  47 import org.slf4j.Logger;
  48 import org.slf4j.LoggerFactory;
  49
  50 public class InboundNatService extends AbstractServiceInstance implements ConfigInterface, InboundNatProvider {
  51     private static final Logger LOG = LoggerFactory.getLogger(InboundNatService.class);
  52     public static final Class<? extends NxmNxReg> REG_FIELD = NxmNxReg3.class;
  53
  54     public InboundNatService() {
  55         super(Service.INBOUND_NAT);
  56     }
  57
  58     public InboundNatService(Service service) {
  59         super(service);
  60     }
  61
  62     @Override
  63     public Status programIpRewriteRule(Long dpid, Long inPort, String destSegId, InetAddress matchAddress,
  64                                        InetAddress rewriteAddress, Action action) {
  65         String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpid;
  66
  67         MatchBuilder matchBuilder = new MatchBuilder();
  68         NodeBuilder nodeBuilder = OF13Provider.createNodeBuilder(nodeName);
  69
  70         // Instructions List Stores Individual Instructions
  71         InstructionsBuilder isb = new InstructionsBuilder();
  72         List<Instruction> instructions = Lists.newArrayList();
  73         InstructionBuilder ib = new InstructionBuilder();
  74
  75         MatchUtils.createInPortMatch(matchBuilder, dpid, inPort);
  76         MatchUtils.createDstL3IPv4Match(matchBuilder, MatchUtils.iPv4PrefixFromIPv4Address(matchAddress.getHostAddress()));
  77
  78         // Set register to indicate that rewrite took place
  79         ActionBuilder actionBuilder = new ActionBuilder();
  80         actionBuilder.setAction(ActionUtils.nxLoadRegAction(new DstNxRegCaseBuilder().setNxReg(REG_FIELD).build(),
  81                 new BigInteger(destSegId)));
  82
  83         // Set Dest IP address and set REG_FIELD
  84         InstructionUtils.createNwDstInstructions(ib,
  85                 MatchUtils.iPv4PrefixFromIPv4Address(rewriteAddress.getHostAddress()), actionBuilder);
  86         ib.setOrder(0);
  87         ib.setKey(new InstructionKey(0));
  88         instructions.add(ib.build());
  89
  90         // Goto Next Table
  91         ib = getMutablePipelineInstructionBuilder();
  92         ib.setOrder(1);
  93         ib.setKey(new InstructionKey(1));
  94         instructions.add(ib.build());
  95
  96         FlowBuilder flowBuilder = new FlowBuilder();
  97         flowBuilder.setMatch(matchBuilder.build());
  98         flowBuilder.setInstructions(isb.setInstruction(instructions).build());
  99
 100         String flowId = "InboundNAT_" + inPort + "_" + destSegId + "_" + matchAddress.getHostAddress();
 101         flowBuilder.setId(new FlowId(flowId));
 102         FlowKey key = new FlowKey(new FlowId(flowId));
 103         flowBuilder.setBarrier(true);
 104         flowBuilder.setTableId(this.getTable());
 105         flowBuilder.setKey(key);
 106         flowBuilder.setPriority(1024);
 107         flowBuilder.setFlowName(flowId);
 108         flowBuilder.setHardTimeout(0);
 109         flowBuilder.setIdleTimeout(0);
 110
 111         if (action.equals(Action.ADD)) {
 112             writeFlow(flowBuilder, nodeBuilder);
 113         } else {
 114             removeFlow(flowBuilder, nodeBuilder);
 115         }
 116
 117         // ToDo: WriteFlow/RemoveFlow should return something we can use to check success
 118         return new Status(StatusCode.SUCCESS);
 119     }
 120
 121     @Override
 122     public Status programIpRewriteExclusion(Long dpid, String segmentationId, String excludedCidr,
 123                                             Action action) {
 124         String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpid;
 125
 126         MatchBuilder matchBuilder = new MatchBuilder();
 127         NodeBuilder nodeBuilder = OF13Provider.createNodeBuilder(nodeName);
 128
 129         // Instructions List Stores Individual Instructions
 130         InstructionsBuilder isb = new InstructionsBuilder();
 131         List<Instruction> instructions = Lists.newArrayList();
 132         InstructionBuilder ib;
 133
 134         MatchUtils.createTunnelIDMatch(matchBuilder, new BigInteger(segmentationId));
 135         String ipAddress = excludedCidr.substring(0, excludedCidr.indexOf("/"));
 136         InetAddress inetAddress;
 137         try {
 138             inetAddress = InetAddress.getByName(ipAddress);
 139         } catch (UnknownHostException e) {
 140             return new Status(StatusCode.BADREQUEST);
 141         }
 142         if (inetAddress instanceof Inet6Address) {
 143             // WORKAROUND: For now ipv6 is not supported
 144             // TODO: implement ipv6 cidr case
 145             LOG.debug("ipv6 cidr is not implemented yet. cidr {}",
 146                       excludedCidr);
 147             return new Status(StatusCode.NOTIMPLEMENTED);
 148         }
 149         MatchUtils.createDstL3IPv4Match(matchBuilder, new Ipv4Prefix(excludedCidr));
 150
 151         // Goto Next Table
 152         ib = getMutablePipelineInstructionBuilder();
 153         ib.setOrder(0);
 154         ib.setKey(new InstructionKey(0));
 155         instructions.add(ib.build());
 156
 157         FlowBuilder flowBuilder = new FlowBuilder();
 158         flowBuilder.setMatch(matchBuilder.build());
 159         flowBuilder.setInstructions(isb.setInstruction(instructions).build());
 160
 161         String flowId = "InboundNATExclusion_" + segmentationId + "_" + excludedCidr;
 162         flowBuilder.setId(new FlowId(flowId));
 163         FlowKey key = new FlowKey(new FlowId(flowId));
 164         flowBuilder.setBarrier(true);
 165         flowBuilder.setTableId(this.getTable());
 166         flowBuilder.setKey(key);
 167         flowBuilder.setPriority(1024);
 168         flowBuilder.setFlowName(flowId);
 169         flowBuilder.setHardTimeout(0);
 170         flowBuilder.setIdleTimeout(0);
 171
 172         if (action.equals(Action.ADD)) {
 173             writeFlow(flowBuilder, nodeBuilder);
 174         } else {
 175             removeFlow(flowBuilder, nodeBuilder);
 176         }
 177
 178         // ToDo: WriteFlow/RemoveFlow should return something we can use to check success
 179         return new Status(StatusCode.SUCCESS);
 180     }
 181
 182     @Override
 183     public void setDependencies(BundleContext bundleContext, ServiceReference serviceReference) {
 184         super.setDependencies(bundleContext.getServiceReference(InboundNatProvider.class.getName()), this);
 185     }
 186
 187     @Override
 188     public void setDependencies(Object impl) {}
 189 }