2 * Copyright (c) 2014, 2015 Red Hat, Inc. and others. All rights reserved.
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
9 package org.opendaylight.netvirt.openstack.netvirt.providers.openflow13.services;
11 import java.math.BigInteger;
12 import java.net.Inet6Address;
13 import java.net.InetAddress;
14 import java.net.UnknownHostException;
15 import java.util.ArrayList;
16 import java.util.List;
17 import org.opendaylight.netvirt.openstack.netvirt.api.Action;
18 import org.opendaylight.netvirt.openstack.netvirt.api.InboundNatProvider;
19 import org.opendaylight.netvirt.openstack.netvirt.api.Status;
20 import org.opendaylight.netvirt.openstack.netvirt.api.StatusCode;
21 import org.opendaylight.netvirt.openstack.netvirt.providers.ConfigInterface;
22 import org.opendaylight.netvirt.openstack.netvirt.providers.openflow13.AbstractServiceInstance;
23 import org.opendaylight.netvirt.openstack.netvirt.providers.openflow13.Service;
24 import org.opendaylight.netvirt.utils.mdsal.openflow.ActionUtils;
25 import org.opendaylight.netvirt.utils.mdsal.openflow.FlowUtils;
26 import org.opendaylight.netvirt.utils.mdsal.openflow.InstructionUtils;
27 import org.opendaylight.netvirt.utils.mdsal.openflow.MatchUtils;
28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.ActionBuilder;
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.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 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg3;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.dst.choice.grouping.dst.choice.DstNxRegCaseBuilder;
40 import org.osgi.framework.BundleContext;
41 import org.osgi.framework.ServiceReference;
42 import org.slf4j.Logger;
43 import org.slf4j.LoggerFactory;
45 public class InboundNatService extends AbstractServiceInstance implements ConfigInterface, InboundNatProvider {
46 private static final Logger LOG = LoggerFactory.getLogger(InboundNatService.class);
47 public static final Class<? extends NxmNxReg> REG_FIELD = NxmNxReg3.class;
49 public InboundNatService() {
50 super(Service.INBOUND_NAT);
53 public InboundNatService(Service service) {
58 public Status programIpRewriteRule(Long dpid, Long inPort, String destSegId, InetAddress matchAddress,
59 InetAddress rewriteAddress, Action action) {
60 NodeBuilder nodeBuilder = FlowUtils.createNodeBuilder(dpid);
61 FlowBuilder flowBuilder = new FlowBuilder();
62 String flowName = "InboundNAT_" + inPort + "_" + destSegId + "_" + matchAddress.getHostAddress();
63 FlowUtils.initFlowBuilder(flowBuilder, flowName, getTable()).setPriority(1024);
65 MatchBuilder matchBuilder = new MatchBuilder();
66 MatchUtils.createInPortMatch(matchBuilder, dpid, inPort);
67 MatchUtils.createDstL3IPv4Match(matchBuilder,
68 MatchUtils.iPv4PrefixFromIPv4Address(matchAddress.getHostAddress()));
69 flowBuilder.setMatch(matchBuilder.build());
71 if (action.equals(Action.ADD)) {
72 // Instructions List Stores Individual Instructions
73 InstructionsBuilder isb = new InstructionsBuilder();
74 List<Instruction> instructions = new ArrayList<>();
75 InstructionBuilder ib = new InstructionBuilder();
77 // Set register to indicate that rewrite took place
78 ActionBuilder actionBuilder = new ActionBuilder();
79 actionBuilder.setAction(ActionUtils.nxLoadRegAction(new DstNxRegCaseBuilder().setNxReg(REG_FIELD).build(),
80 new BigInteger(destSegId)));
82 // Set Dest IP address and set REG_FIELD
83 InstructionUtils.createNwDstInstructions(ib,
84 MatchUtils.iPv4PrefixFromIPv4Address(rewriteAddress.getHostAddress()), actionBuilder);
86 ib.setKey(new InstructionKey(0));
87 instructions.add(ib.build());
90 ib = getMutablePipelineInstructionBuilder();
92 ib.setKey(new InstructionKey(1));
93 instructions.add(ib.build());
95 flowBuilder.setInstructions(isb.setInstruction(instructions).build());
97 writeFlow(flowBuilder, nodeBuilder);
99 removeFlow(flowBuilder, nodeBuilder);
102 // ToDo: WriteFlow/RemoveFlow should return something we can use to check success
103 return new Status(StatusCode.SUCCESS);
107 public Status programIpRewriteExclusion(Long dpid, String segmentationId, String excludedCidr,
109 String ipAddress = excludedCidr.substring(0, excludedCidr.indexOf("/"));
110 InetAddress inetAddress;
112 inetAddress = InetAddress.getByName(ipAddress);
113 } catch (UnknownHostException e) {
114 return new Status(StatusCode.BADREQUEST);
116 if (inetAddress instanceof Inet6Address) {
117 // WORKAROUND: For now ipv6 is not supported
118 // TODO: implement ipv6 cidr case
119 LOG.debug("ipv6 cidr is not implemented yet. cidr {}",
121 return new Status(StatusCode.NOTIMPLEMENTED);
124 NodeBuilder nodeBuilder = FlowUtils.createNodeBuilder(dpid);
125 FlowBuilder flowBuilder = new FlowBuilder();
126 String flowName = "InboundNATExclusion_" + segmentationId + "_" + excludedCidr;
127 FlowUtils.initFlowBuilder(flowBuilder, flowName, getTable()).setPriority(1024);
129 MatchBuilder matchBuilder = new MatchBuilder();
130 MatchUtils.createTunnelIDMatch(matchBuilder, new BigInteger(segmentationId));
132 MatchUtils.createDstL3IPv4Match(matchBuilder, new Ipv4Prefix(excludedCidr));
133 flowBuilder.setMatch(matchBuilder.build());
135 if (action.equals(Action.ADD)) {
136 // Instructions List Stores Individual Instructions
137 InstructionsBuilder isb = new InstructionsBuilder();
138 List<Instruction> instructions = new ArrayList<>();
139 InstructionBuilder ib;
142 ib = getMutablePipelineInstructionBuilder();
144 ib.setKey(new InstructionKey(0));
145 instructions.add(ib.build());
147 flowBuilder.setInstructions(isb.setInstruction(instructions).build());
149 writeFlow(flowBuilder, nodeBuilder);
151 removeFlow(flowBuilder, nodeBuilder);
154 // ToDo: WriteFlow/RemoveFlow should return something we can use to check success
155 return new Status(StatusCode.SUCCESS);
159 public void setDependencies(BundleContext bundleContext, ServiceReference serviceReference) {
160 super.setDependencies(bundleContext.getServiceReference(InboundNatProvider.class.getName()), this);
164 public void setDependencies(Object impl) {}