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 org.opendaylight.controller.sal.core.Node;
  14 import org.opendaylight.controller.sal.utils.Status;
  15 import org.opendaylight.controller.sal.utils.StatusCode;
  16 import org.opendaylight.ovsdb.openstack.netvirt.api.Action;
  17 import org.opendaylight.ovsdb.openstack.netvirt.api.Constants;
  18 import org.opendaylight.ovsdb.openstack.netvirt.api.OutboundNatProvider;
  19 import org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.AbstractServiceInstance;
  20 import org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.OF13Provider;
  21 import org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.Service;
  22 import org.opendaylight.ovsdb.utils.mdsal.openflow.InstructionUtils;
  23 import org.opendaylight.ovsdb.utils.mdsal.openflow.MatchUtils;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Prefix;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowId;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowKey;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.InstructionsBuilder;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionKey;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeBuilder;
  34
  35 import com.google.common.collect.Lists;
  36
  37 import java.math.BigInteger;
  38 import java.net.InetAddress;
  39 import java.util.List;
  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 boolean isBridgeInPipeline (String nodeId) {
  52         return true;
  53     }
  54
  55     @Override
  56     public Status programIpRewriteRule(Node node, Long dpid, String segmentationId, InetAddress matchAddress,
  57                                        InetAddress rewriteAddress, Action action) {
  58         String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpid;
  59
  60         MatchBuilder matchBuilder = new MatchBuilder();
  61         NodeBuilder nodeBuilder = OF13Provider.createNodeBuilder(nodeName);
  62
  63         // Instructions List Stores Individual Instructions
  64         InstructionsBuilder isb = new InstructionsBuilder();
  65         List<Instruction> instructions = Lists.newArrayList();
  66         InstructionBuilder ib = new InstructionBuilder();
  67
  68         MatchUtils.createTunnelIDMatch(matchBuilder, new BigInteger(segmentationId));
  69         MatchUtils.createDstL3IPv4Match(matchBuilder, new Ipv4Prefix(matchAddress.getHostAddress()));
  70
  71         // Set Dest IP address
  72         InstructionUtils.createNwDstInstructions(ib, new Ipv4Prefix(rewriteAddress.getHostAddress()));
  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_" + 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         writeFlow(flowBuilder, nodeBuilder);
  98
  99         if (action.equals(Action.ADD)) {
 100             writeFlow(flowBuilder, nodeBuilder);
 101         } else {
 102             removeFlow(flowBuilder, nodeBuilder);
 103         }
 104
 105         // ToDo: WriteFlow/RemoveFlow should return something we can use to check success
 106         return new Status(StatusCode.SUCCESS);
 107     }
 108
 109     @Override
 110     public Status programIpRewriteExclusion(Node node, Long dpid, String segmentationId, String excludedCidr,
 111                                             Action action) {
 112         String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpid;
 113
 114         MatchBuilder matchBuilder = new MatchBuilder();
 115         NodeBuilder nodeBuilder = OF13Provider.createNodeBuilder(nodeName);
 116
 117         // Instructions List Stores Individual Instructions
 118         InstructionsBuilder isb = new InstructionsBuilder();
 119         List<Instruction> instructions = Lists.newArrayList();
 120         InstructionBuilder ib;
 121
 122         MatchUtils.createTunnelIDMatch(matchBuilder, new BigInteger(segmentationId));
 123         MatchUtils.createDstL3IPv4Match(matchBuilder, new Ipv4Prefix(excludedCidr));
 124
 125         // Goto Next Table
 126         ib = getMutablePipelineInstructionBuilder();
 127         ib.setOrder(0);
 128         ib.setKey(new InstructionKey(0));
 129         instructions.add(ib.build());
 130
 131         FlowBuilder flowBuilder = new FlowBuilder();
 132         flowBuilder.setMatch(matchBuilder.build());
 133         flowBuilder.setInstructions(isb.setInstruction(instructions).build());
 134
 135         String flowId = "OutboundNATExclusion_" + excludedCidr;
 136         flowBuilder.setId(new FlowId(flowId));
 137         FlowKey key = new FlowKey(new FlowId(flowId));
 138         flowBuilder.setBarrier(true);
 139         flowBuilder.setTableId(this.getTable());
 140         flowBuilder.setKey(key);
 141         flowBuilder.setPriority(1024);
 142         flowBuilder.setFlowName(flowId);
 143         flowBuilder.setHardTimeout(0);
 144         flowBuilder.setIdleTimeout(0);
 145         writeFlow(flowBuilder, nodeBuilder);
 146
 147         if (action.equals(Action.ADD)) {
 148             writeFlow(flowBuilder, nodeBuilder);
 149         } else {
 150             removeFlow(flowBuilder, nodeBuilder);
 151         }
 152
 153         // ToDo: WriteFlow/RemoveFlow should return something we can use to check success
 154         return new Status(StatusCode.SUCCESS);
 155     }
 156 }