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.providers.openflow13.AbstractServiceInstance;
  21 import org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.OF13Provider;
  22 import org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.Service;
  23 import org.opendaylight.ovsdb.plugin.api.Status;
  24 import org.opendaylight.ovsdb.plugin.api.StatusCode;
  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.Node;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeBuilder;
  38
  39 import com.google.common.collect.Lists;
  40
  41 public class OutboundNatService extends AbstractServiceInstance implements OutboundNatProvider {
  42     public OutboundNatService() {
  43         super(Service.OUTBOUND_NAT);
  44     }
  45
  46     public OutboundNatService(Service service) {
  47         super(service);
  48     }
  49
  50     @Override
  51     public Status programIpRewriteRule(Node node, Long dpid, String segmentationId, InetAddress matchAddress,
  52                                        InetAddress rewriteAddress, Action action) {
  53         String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpid;
  54
  55         MatchBuilder matchBuilder = new MatchBuilder();
  56         NodeBuilder nodeBuilder = OF13Provider.createNodeBuilder(nodeName);
  57
  58         // Instructions List Stores Individual Instructions
  59         InstructionsBuilder isb = new InstructionsBuilder();
  60         List<Instruction> instructions = Lists.newArrayList();
  61         InstructionBuilder ib = new InstructionBuilder();
  62
  63         MatchUtils.createTunnelIDMatch(matchBuilder, new BigInteger(segmentationId));
  64         MatchUtils.createDstL3IPv4Match(matchBuilder,
  65                                         MatchUtils.iPv4PrefixFromIPv4Address(matchAddress.getHostAddress()));
  66
  67         // Set Dest IP address
  68         InstructionUtils.createNwDstInstructions(ib,
  69                                                  MatchUtils.iPv4PrefixFromIPv4Address(rewriteAddress.getHostAddress()));
  70         ib.setOrder(0);
  71         ib.setKey(new InstructionKey(0));
  72         instructions.add(ib.build());
  73
  74         // Goto Next Table
  75         ib = getMutablePipelineInstructionBuilder();
  76         ib.setOrder(1);
  77         ib.setKey(new InstructionKey(1));
  78         instructions.add(ib.build());
  79
  80         FlowBuilder flowBuilder = new FlowBuilder();
  81         flowBuilder.setMatch(matchBuilder.build());
  82         flowBuilder.setInstructions(isb.setInstruction(instructions).build());
  83
  84         String flowId = "OutboundNAT_" + segmentationId + "_" + rewriteAddress.getHostAddress();
  85         flowBuilder.setId(new FlowId(flowId));
  86         FlowKey key = new FlowKey(new FlowId(flowId));
  87         flowBuilder.setBarrier(true);
  88         flowBuilder.setTableId(this.getTable());
  89         flowBuilder.setKey(key);
  90         flowBuilder.setPriority(1024);
  91         flowBuilder.setFlowName(flowId);
  92         flowBuilder.setHardTimeout(0);
  93         flowBuilder.setIdleTimeout(0);
  94
  95         if (action.equals(Action.ADD)) {
  96             writeFlow(flowBuilder, nodeBuilder);
  97         } else {
  98             removeFlow(flowBuilder, nodeBuilder);
  99         }
 100
 101         // ToDo: WriteFlow/RemoveFlow should return something we can use to check success
 102         return new Status(StatusCode.SUCCESS);
 103     }
 104
 105     @Override
 106     public Status programIpRewriteExclusion(Node node, Long dpid, String segmentationId, String excludedCidr,
 107                                             Action action) {
 108         String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpid;
 109
 110         MatchBuilder matchBuilder = new MatchBuilder();
 111         NodeBuilder nodeBuilder = OF13Provider.createNodeBuilder(nodeName);
 112
 113         // Instructions List Stores Individual Instructions
 114         InstructionsBuilder isb = new InstructionsBuilder();
 115         List<Instruction> instructions = Lists.newArrayList();
 116         InstructionBuilder ib;
 117
 118         MatchUtils.createTunnelIDMatch(matchBuilder, new BigInteger(segmentationId));
 119         MatchUtils.createDstL3IPv4Match(matchBuilder, new Ipv4Prefix(excludedCidr));
 120
 121         // Goto Next Table
 122         ib = getMutablePipelineInstructionBuilder();
 123         ib.setOrder(0);
 124         ib.setKey(new InstructionKey(0));
 125         instructions.add(ib.build());
 126
 127         FlowBuilder flowBuilder = new FlowBuilder();
 128         flowBuilder.setMatch(matchBuilder.build());
 129         flowBuilder.setInstructions(isb.setInstruction(instructions).build());
 130
 131         String flowId = "OutboundNATExclusion_" + segmentationId + "_" + excludedCidr;
 132         flowBuilder.setId(new FlowId(flowId));
 133         FlowKey key = new FlowKey(new FlowId(flowId));
 134         flowBuilder.setBarrier(true);
 135         flowBuilder.setTableId(this.getTable());
 136         flowBuilder.setKey(key);
 137         flowBuilder.setPriority(1024);
 138         flowBuilder.setFlowName(flowId);
 139         flowBuilder.setHardTimeout(0);
 140         flowBuilder.setIdleTimeout(0);
 141
 142         if (action.equals(Action.ADD)) {
 143             writeFlow(flowBuilder, nodeBuilder);
 144         } else {
 145             removeFlow(flowBuilder, nodeBuilder);
 146         }
 147
 148         // ToDo: WriteFlow/RemoveFlow should return something we can use to check success
 149         return new Status(StatusCode.SUCCESS);
 150     }
 151 }