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.openflow13.AbstractServiceInstance;
  23 import org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.OF13Provider;
  24 import org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.Service;
  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.flow.inventory.rev130819.FlowId;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowKey;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.InstructionsBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionKey;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeBuilder;
  37
  38 import com.google.common.collect.Lists;
  39
  40 public class OutboundNatService extends AbstractServiceInstance implements OutboundNatProvider {
  41     public OutboundNatService() {
  42         super(Service.OUTBOUND_NAT);
  43     }
  44
  45     public OutboundNatService(Service service) {
  46         super(service);
  47     }
  48
  49     @Override
  50     public Status programIpRewriteRule(Long dpid, String segmentationId, InetAddress matchAddress,
  51                                        InetAddress rewriteAddress, Action action) {
  52         String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpid;
  53
  54         MatchBuilder matchBuilder = new MatchBuilder();
  55         NodeBuilder nodeBuilder = OF13Provider.createNodeBuilder(nodeName);
  56
  57         // Instructions List Stores Individual Instructions
  58         InstructionsBuilder isb = new InstructionsBuilder();
  59         List<Instruction> instructions = Lists.newArrayList();
  60         InstructionBuilder ib = new InstructionBuilder();
  61
  62         MatchUtils.createTunnelIDMatch(matchBuilder, new BigInteger(segmentationId));
  63         MatchUtils.createDstL3IPv4Match(matchBuilder,
  64                                         MatchUtils.iPv4PrefixFromIPv4Address(matchAddress.getHostAddress()));
  65
  66         // Set Dest IP address
  67         InstructionUtils.createNwDstInstructions(ib,
  68                                                  MatchUtils.iPv4PrefixFromIPv4Address(rewriteAddress.getHostAddress()));
  69         ib.setOrder(0);
  70         ib.setKey(new InstructionKey(0));
  71         instructions.add(ib.build());
  72
  73         // Goto Next Table
  74         ib = getMutablePipelineInstructionBuilder();
  75         ib.setOrder(1);
  76         ib.setKey(new InstructionKey(1));
  77         instructions.add(ib.build());
  78
  79         FlowBuilder flowBuilder = new FlowBuilder();
  80         flowBuilder.setMatch(matchBuilder.build());
  81         flowBuilder.setInstructions(isb.setInstruction(instructions).build());
  82
  83         String flowId = "OutboundNAT_" + segmentationId + "_" + rewriteAddress.getHostAddress();
  84         flowBuilder.setId(new FlowId(flowId));
  85         FlowKey key = new FlowKey(new FlowId(flowId));
  86         flowBuilder.setBarrier(true);
  87         flowBuilder.setTableId(this.getTable());
  88         flowBuilder.setKey(key);
  89         flowBuilder.setPriority(1024);
  90         flowBuilder.setFlowName(flowId);
  91         flowBuilder.setHardTimeout(0);
  92         flowBuilder.setIdleTimeout(0);
  93
  94         if (action.equals(Action.ADD)) {
  95             writeFlow(flowBuilder, nodeBuilder);
  96         } else {
  97             removeFlow(flowBuilder, nodeBuilder);
  98         }
  99
 100         // ToDo: WriteFlow/RemoveFlow should return something we can use to check success
 101         return new Status(StatusCode.SUCCESS);
 102     }
 103
 104     @Override
 105     public Status programIpRewriteExclusion(Long dpid, String segmentationId, String excludedCidr,
 106                                             Action action) {
 107         String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpid;
 108
 109         MatchBuilder matchBuilder = new MatchBuilder();
 110         NodeBuilder nodeBuilder = OF13Provider.createNodeBuilder(nodeName);
 111
 112         // Instructions List Stores Individual Instructions
 113         InstructionsBuilder isb = new InstructionsBuilder();
 114         List<Instruction> instructions = Lists.newArrayList();
 115         InstructionBuilder ib;
 116
 117         MatchUtils.createTunnelIDMatch(matchBuilder, new BigInteger(segmentationId));
 118         MatchUtils.createDstL3IPv4Match(matchBuilder, new Ipv4Prefix(excludedCidr));
 119
 120         // Goto Next Table
 121         ib = getMutablePipelineInstructionBuilder();
 122         ib.setOrder(0);
 123         ib.setKey(new InstructionKey(0));
 124         instructions.add(ib.build());
 125
 126         FlowBuilder flowBuilder = new FlowBuilder();
 127         flowBuilder.setMatch(matchBuilder.build());
 128         flowBuilder.setInstructions(isb.setInstruction(instructions).build());
 129
 130         String flowId = "OutboundNATExclusion_" + segmentationId + "_" + excludedCidr;
 131         flowBuilder.setId(new FlowId(flowId));
 132         FlowKey key = new FlowKey(new FlowId(flowId));
 133         flowBuilder.setBarrier(true);
 134         flowBuilder.setTableId(this.getTable());
 135         flowBuilder.setKey(key);
 136         flowBuilder.setPriority(1024);
 137         flowBuilder.setFlowName(flowId);
 138         flowBuilder.setHardTimeout(0);
 139         flowBuilder.setIdleTimeout(0);
 140
 141         if (action.equals(Action.ADD)) {
 142             writeFlow(flowBuilder, nodeBuilder);
 143         } else {
 144             removeFlow(flowBuilder, nodeBuilder);
 145         }
 146
 147         // ToDo: WriteFlow/RemoveFlow should return something we can use to check success
 148         return new Status(StatusCode.SUCCESS);
 149     }
 150 }