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

   1 /*
   2  * Copyright (C) 2014 Red Hat, Inc.
   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  * Authors : Madhu Venugopal, Dave Tucker
   9  */
  10
  11 package org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.services;
  12
  13 import java.math.BigInteger;
  14 import java.net.InetAddress;
  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.OutboundNatProvider;
  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.InstructionUtils;
  27 import org.opendaylight.ovsdb.utils.mdsal.openflow.MatchUtils;
  28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Prefix;
  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.osgi.framework.BundleContext;
  41 import org.osgi.framework.ServiceReference;
  42
  43 public class OutboundNatService extends AbstractServiceInstance implements OutboundNatProvider, ConfigInterface {
  44     public OutboundNatService() {
  45         super(Service.OUTBOUND_NAT);
  46     }
  47
  48     public OutboundNatService(Service service) {
  49         super(service);
  50     }
  51
  52     @Override
  53     public Status programIpRewriteRule(Long dpid, String segmentationId, InetAddress matchAddress,
  54                                        InetAddress rewriteAddress, Action action) {
  55         String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpid;
  56
  57         MatchBuilder matchBuilder = new MatchBuilder();
  58         NodeBuilder nodeBuilder = OF13Provider.createNodeBuilder(nodeName);
  59
  60         // Instructions List Stores Individual Instructions
  61         InstructionsBuilder isb = new InstructionsBuilder();
  62         List<Instruction> instructions = Lists.newArrayList();
  63         InstructionBuilder ib = new InstructionBuilder();
  64
  65         MatchUtils.createTunnelIDMatch(matchBuilder, new BigInteger(segmentationId));
  66         MatchUtils.createDstL3IPv4Match(matchBuilder,
  67                                         MatchUtils.iPv4PrefixFromIPv4Address(matchAddress.getHostAddress()));
  68
  69         // Set Dest IP address
  70         InstructionUtils.createNwDstInstructions(ib,
  71                 MatchUtils.iPv4PrefixFromIPv4Address(rewriteAddress.getHostAddress()),
  72                 null);
  73         ib.setOrder(0);
  74         ib.setKey(new InstructionKey(0));
  75         instructions.add(ib.build());
  76
  77         // Goto Next Table
  78         ib = getMutablePipelineInstructionBuilder();
  79         ib.setOrder(1);
  80         ib.setKey(new InstructionKey(1));
  81         instructions.add(ib.build());
  82
  83         FlowBuilder flowBuilder = new FlowBuilder();
  84         flowBuilder.setMatch(matchBuilder.build());
  85         flowBuilder.setInstructions(isb.setInstruction(instructions).build());
  86
  87         String flowId = "OutboundNAT_" + segmentationId + "_" + rewriteAddress.getHostAddress();
  88         flowBuilder.setId(new FlowId(flowId));
  89         FlowKey key = new FlowKey(new FlowId(flowId));
  90         flowBuilder.setBarrier(true);
  91         flowBuilder.setTableId(this.getTable());
  92         flowBuilder.setKey(key);
  93         flowBuilder.setPriority(1024);
  94         flowBuilder.setFlowName(flowId);
  95         flowBuilder.setHardTimeout(0);
  96         flowBuilder.setIdleTimeout(0);
  97
  98         if (action.equals(Action.ADD)) {
  99             writeFlow(flowBuilder, nodeBuilder);
 100         } else {
 101             removeFlow(flowBuilder, nodeBuilder);
 102         }
 103
 104         // ToDo: WriteFlow/RemoveFlow should return something we can use to check success
 105         return new Status(StatusCode.SUCCESS);
 106     }
 107
 108     @Override
 109     public Status programIpRewriteExclusion(Long dpid, String segmentationId, String excludedCidr,
 110                                             Action action) {
 111         String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpid;
 112
 113         MatchBuilder matchBuilder = new MatchBuilder();
 114         NodeBuilder nodeBuilder = OF13Provider.createNodeBuilder(nodeName);
 115
 116         // Instructions List Stores Individual Instructions
 117         InstructionsBuilder isb = new InstructionsBuilder();
 118         List<Instruction> instructions = Lists.newArrayList();
 119         InstructionBuilder ib;
 120
 121         MatchUtils.createTunnelIDMatch(matchBuilder, new BigInteger(segmentationId));
 122         MatchUtils.createDstL3IPv4Match(matchBuilder, new Ipv4Prefix(excludedCidr));
 123
 124         // Goto Next Table
 125         ib = getMutablePipelineInstructionBuilder();
 126         ib.setOrder(0);
 127         ib.setKey(new InstructionKey(0));
 128         instructions.add(ib.build());
 129
 130         FlowBuilder flowBuilder = new FlowBuilder();
 131         flowBuilder.setMatch(matchBuilder.build());
 132         flowBuilder.setInstructions(isb.setInstruction(instructions).build());
 133
 134         String flowId = "OutboundNATExclusion_" + segmentationId + "_" + excludedCidr;
 135         flowBuilder.setId(new FlowId(flowId));
 136         FlowKey key = new FlowKey(new FlowId(flowId));
 137         flowBuilder.setBarrier(true);
 138         flowBuilder.setTableId(this.getTable());
 139         flowBuilder.setKey(key);
 140         flowBuilder.setPriority(1024);
 141         flowBuilder.setFlowName(flowId);
 142         flowBuilder.setHardTimeout(0);
 143         flowBuilder.setIdleTimeout(0);
 144
 145         if (action.equals(Action.ADD)) {
 146             writeFlow(flowBuilder, nodeBuilder);
 147         } else {
 148             removeFlow(flowBuilder, nodeBuilder);
 149         }
 150
 151         // ToDo: WriteFlow/RemoveFlow should return something we can use to check success
 152         return new Status(StatusCode.SUCCESS);
 153     }
 154
 155     @Override
 156     public void setDependencies(BundleContext bundleContext, ServiceReference serviceReference) {
 157         super.setDependencies(bundleContext.getServiceReference(OutboundNatProvider.class.getName()), this);
 158     }
 159
 160     @Override
 161     public void setDependencies(Object impl) {
 162
 163     }
 164 }