openstack/net-virt-providers/src/main/java/org/opendaylight/ovsdb/openstack/netvirt/providers/openflow13/services/InboundNatService.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 package org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.services;
  11
  12 import java.math.BigInteger;
  13 import java.net.InetAddress;
  14 import java.util.List;
  15
  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.InboundNatProvider;
  19 import org.opendaylight.ovsdb.openstack.netvirt.api.Status;
  20 import org.opendaylight.ovsdb.openstack.netvirt.api.StatusCode;
  21 import org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.AbstractServiceInstance;
  22 import org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.OF13Provider;
  23 import org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.Service;
  24 import org.opendaylight.ovsdb.utils.mdsal.openflow.InstructionUtils;
  25 import org.opendaylight.ovsdb.utils.mdsal.openflow.MatchUtils;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Prefix;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowId;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowBuilder;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowKey;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.InstructionsBuilder;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionBuilder;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionKey;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  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 InboundNatService extends AbstractServiceInstance implements InboundNatProvider {
  41     public InboundNatService() {
  42         super(Service.INBOUND_NAT);
  43     }
  44
  45     public InboundNatService(Service service) {
  46         super(service);
  47     }
  48
  49     @Override
  50     public Status programIpRewriteRule(Node node, 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, MatchUtils.iPv4PrefixFromIPv4Address(matchAddress.getHostAddress()));
  64
  65         // Set Dest IP address
  66         InstructionUtils.createNwDstInstructions(ib, MatchUtils.iPv4PrefixFromIPv4Address(rewriteAddress.getHostAddress()));
  67         ib.setOrder(0);
  68         ib.setKey(new InstructionKey(0));
  69         instructions.add(ib.build());
  70
  71         // Goto Next Table
  72         ib = getMutablePipelineInstructionBuilder();
  73         ib.setOrder(1);
  74         ib.setKey(new InstructionKey(1));
  75         instructions.add(ib.build());
  76
  77         FlowBuilder flowBuilder = new FlowBuilder();
  78         flowBuilder.setMatch(matchBuilder.build());
  79         flowBuilder.setInstructions(isb.setInstruction(instructions).build());
  80
  81         String flowId = "InboundNAT_" + rewriteAddress.getHostAddress();
  82         flowBuilder.setId(new FlowId(flowId));
  83         FlowKey key = new FlowKey(new FlowId(flowId));
  84         flowBuilder.setBarrier(true);
  85         flowBuilder.setTableId(this.getTable());
  86         flowBuilder.setKey(key);
  87         flowBuilder.setPriority(1024);
  88         flowBuilder.setFlowName(flowId);
  89         flowBuilder.setHardTimeout(0);
  90         flowBuilder.setIdleTimeout(0);
  91
  92         if (action.equals(Action.ADD)) {
  93             writeFlow(flowBuilder, nodeBuilder);
  94         } else {
  95             removeFlow(flowBuilder, nodeBuilder);
  96         }
  97
  98         // ToDo: WriteFlow/RemoveFlow should return something we can use to check success
  99         return new Status(StatusCode.SUCCESS);
 100     }
 101
 102     @Override
 103     public Status programIpRewriteExclusion(Node node, Long dpid, String segmentationId, String excludedCidr,
 104                                             Action action) {
 105         String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpid;
 106
 107         MatchBuilder matchBuilder = new MatchBuilder();
 108         NodeBuilder nodeBuilder = OF13Provider.createNodeBuilder(nodeName);
 109
 110         // Instructions List Stores Individual Instructions
 111         InstructionsBuilder isb = new InstructionsBuilder();
 112         List<Instruction> instructions = Lists.newArrayList();
 113         InstructionBuilder ib;
 114
 115         MatchUtils.createTunnelIDMatch(matchBuilder, new BigInteger(segmentationId));
 116         MatchUtils.createDstL3IPv4Match(matchBuilder, new Ipv4Prefix(excludedCidr));
 117
 118         // Goto Next Table
 119         ib = getMutablePipelineInstructionBuilder();
 120         ib.setOrder(0);
 121         ib.setKey(new InstructionKey(0));
 122         instructions.add(ib.build());
 123
 124         FlowBuilder flowBuilder = new FlowBuilder();
 125         flowBuilder.setMatch(matchBuilder.build());
 126         flowBuilder.setInstructions(isb.setInstruction(instructions).build());
 127
 128         String flowId = "InboundNATExclusion_" + excludedCidr;
 129         flowBuilder.setId(new FlowId(flowId));
 130         FlowKey key = new FlowKey(new FlowId(flowId));
 131         flowBuilder.setBarrier(true);
 132         flowBuilder.setTableId(this.getTable());
 133         flowBuilder.setKey(key);
 134         flowBuilder.setPriority(1024);
 135         flowBuilder.setFlowName(flowId);
 136         flowBuilder.setHardTimeout(0);
 137         flowBuilder.setIdleTimeout(0);
 138
 139         if (action.equals(Action.ADD)) {
 140             writeFlow(flowBuilder, nodeBuilder);
 141         } else {
 142             removeFlow(flowBuilder, nodeBuilder);
 143         }
 144
 145         // ToDo: WriteFlow/RemoveFlow should return something we can use to check success
 146         return new Status(StatusCode.SUCCESS);
 147     }
 148 }