natservice/natservice-impl/src/main/java/org/opendaylight/vpnservice/natservice/internal/RouterToVpnListener.java

   1 /*
   2  * Copyright (c) 2016 Ericsson India Global Services Pvt Ltd. and others.  All rights reserved.
   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 package org.opendaylight.vpnservice.natservice.internal;
   9
  10 import java.math.BigInteger;
  11 import java.util.HashMap;
  12 import java.util.List;
  13 import java.util.Map;
  14 import java.util.concurrent.ExecutionException;
  15 import java.util.concurrent.Future;
  16
  17 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  18 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  19 import org.opendaylight.vpnservice.mdsalutil.MDSALUtil;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rpcs.rev151003.GetDpidFromInterfaceInput;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rpcs.rev151003.GetDpidFromInterfaceInputBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rpcs.rev151003.GetDpidFromInterfaceOutput;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rpcs.rev151003.OdlInterfaceRpcService;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.natservice.rev160111.floating.ip.info.RouterPorts;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.natservice.rev160111.floating.ip.info.router.ports.Ports;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.natservice.rev160111.floating.ip.info.router.ports.ports.IpMapping;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.natservice.rev160111.intext.ip.map.IpMappingKey;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.natservice.rev160111.intext.ip.map.ip.mapping.IpMap;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.neutronvpn.rev150602.NeutronvpnListener;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.neutronvpn.rev150602.RouterAssociatedToVpn;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.neutronvpn.rev150602.RouterDisassociatedFromVpn;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.neutronvpn.rev150602.SubnetAddedToVpn;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.neutronvpn.rev150602.SubnetDeletedFromVpn;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.neutronvpn.rev150602.PortAddedToSubnet;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.neutronvpn.rev150602.PortRemovedFromSubnet;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.neutronvpn.rev150602.SubnetUpdatedInVpn;
  38 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  39 import org.opendaylight.yangtools.yang.common.RpcResult;
  40 import org.slf4j.Logger;
  41 import org.slf4j.LoggerFactory;
  42
  43 import com.google.common.base.Optional;
  44
  45 public class RouterToVpnListener implements NeutronvpnListener {
  46     private static final Logger LOG = LoggerFactory.getLogger(RouterToVpnListener.class);
  47     private DataBroker dataBroker;
  48     private FloatingIPListener floatingIpListener;
  49     private OdlInterfaceRpcService interfaceManager;
  50
  51
  52     private ExternalRoutersListener externalRoutersListener;
  53
  54     public RouterToVpnListener(DataBroker db) {
  55         dataBroker = db;
  56     }
  57
  58     void setInterfaceManager(OdlInterfaceRpcService interfaceManager) {
  59         this.interfaceManager = interfaceManager;
  60     }
  61
  62     void setFloatingIpListener(FloatingIPListener floatingIpListener) {
  63         this.floatingIpListener = floatingIpListener;
  64     }
  65
  66     void setExternalRoutersListener(ExternalRoutersListener externalRoutersListener) {
  67         this.externalRoutersListener = externalRoutersListener;
  68     }
  69
  70     /**
  71      * router association to vpn
  72      *
  73      */
  74     @Override
  75     public void onRouterAssociatedToVpn(RouterAssociatedToVpn notification) {
  76         String routerName = notification.getRouterId().getValue();
  77         String vpnName = notification.getVpnId().getValue();
  78         //check router is associated to external network
  79         String extNetwork = NatUtil.getAssociatedExternalNetwork(dataBroker, routerName);
  80         if(extNetwork != null) {
  81             LOG.debug("Router {} is associated with ext nw {}", routerName, extNetwork);
  82             handleDNATConfigurationForRouterAssociation(routerName, vpnName, extNetwork);
  83             externalRoutersListener.changeLocalVpnIdToBgpVpnId(routerName, vpnName);
  84         } else {
  85             LOG.debug("Ignoring the Router {} association with VPN {} since it is not external router", routerName);
  86         }
  87
  88     }
  89
  90     /**
  91      * router disassociation from vpn
  92      *
  93      */
  94     @Override
  95     public void onRouterDisassociatedFromVpn(RouterDisassociatedFromVpn notification) {
  96         String routerName = notification.getRouterId().getValue();
  97         String vpnName = notification.getVpnId().getValue();
  98         //check router is associated to external network
  99         String extNetwork = NatUtil.getAssociatedExternalNetwork(dataBroker, routerName);
 100         if(extNetwork != null) {
 101             LOG.debug("Router {} is associated with ext nw {}", routerName, extNetwork);
 102             handleDNATConfigurationForRouterDisassociation(routerName, vpnName, extNetwork);
 103             externalRoutersListener.changeBgpVpnIdToLocalVpnId(routerName, vpnName);
 104         } else {
 105             LOG.debug("Ignoring the Router {} association with VPN {} since it is not external router", routerName);
 106         }
 107     }
 108
 109     void handleDNATConfigurationForRouterAssociation(String routerName, String vpnName, String externalNetwork) {
 110         InstanceIdentifier<RouterPorts> routerPortsId = NatUtil.getRouterPortsId(routerName);
 111         Optional<RouterPorts> optRouterPorts = MDSALUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION, routerPortsId);
 112         if(!optRouterPorts.isPresent()) {
 113             LOG.debug("Could not read Router Ports data object with id: {} to handle associate vpn {}", routerName, vpnName);
 114             return;
 115         }
 116         Uuid networkId = Uuid.getDefaultInstance(externalNetwork);
 117         RouterPorts routerPorts = optRouterPorts.get();
 118         List<Ports> interfaces = routerPorts.getPorts();
 119         Map<String, BigInteger> portToDpnMap = new HashMap<>();
 120         for(Ports port : interfaces) {
 121             String portName = port.getPortName();
 122             BigInteger dpnId = getDpnForInterface(interfaceManager, portName);
 123             if(dpnId.equals(BigInteger.ZERO)) {
 124                 LOG.debug("DPN not found for {}, skip handling of router {} association with vpn", portName, routerName, vpnName);
 125                 continue;
 126             }
 127             portToDpnMap.put(portName, dpnId);
 128             List<IpMapping> ipMapping = port.getIpMapping();
 129             for(IpMapping ipMap : ipMapping) {
 130                 String externalIp = ipMap.getExternalIp();
 131                 //remove all NAT related entries with routerName
 132                 //floatingIpListener.removeNATOnlyFlowEntries(dpnId, portName, routerName, null, ipMap.getInternalIp(), externalIp);
 133                 //Create NAT entries with VPN Id
 134                 LOG.debug("Updating DNAT flows with VPN metadata {} ", vpnName);
 135                 floatingIpListener.createNATOnlyFlowEntries(dpnId, portName, routerName, vpnName, networkId, ipMap.getInternalIp(), externalIp);
 136             }
 137         }
 138     }
 139
 140     void handleDNATConfigurationForRouterDisassociation(String routerName, String vpnName, String externalNetwork) {
 141         InstanceIdentifier<RouterPorts> routerPortsId = NatUtil.getRouterPortsId(routerName);
 142         Optional<RouterPorts> optRouterPorts = MDSALUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION, routerPortsId);
 143         if(!optRouterPorts.isPresent()) {
 144             LOG.debug("Could not read Router Ports data object with id: {} to handle disassociate vpn {}", routerName, vpnName);
 145             return;
 146         }
 147         Uuid networkId = Uuid.getDefaultInstance(externalNetwork);
 148         RouterPorts routerPorts = optRouterPorts.get();
 149         List<Ports> interfaces = routerPorts.getPorts();
 150         for(Ports port : interfaces) {
 151             String portName = port.getPortName();
 152             BigInteger dpnId = getDpnForInterface(interfaceManager, portName);
 153             if(dpnId.equals(BigInteger.ZERO)) {
 154                 LOG.debug("DPN not found for {}, skip handling of router {} association with vpn", portName, routerName, vpnName);
 155                 continue;
 156             }
 157             List<IpMapping> ipMapping = port.getIpMapping();
 158             for(IpMapping ipMap : ipMapping) {
 159                 String externalIp = ipMap.getExternalIp();
 160                 //remove all NAT related entries with routerName
 161                 //floatingIpListener.removeNATOnlyFlowEntries(dpnId, portName, routerName, vpnName, ipMap.getInternalIp(), externalIp);
 162                 //Create NAT entries with VPN Id
 163                 floatingIpListener.createNATOnlyFlowEntries(dpnId, portName, routerName, null, networkId, ipMap.getInternalIp(), externalIp);
 164             }
 165         }
 166     }
 167
 168     private BigInteger getDpnForInterface(OdlInterfaceRpcService interfaceManagerRpcService, String ifName) {
 169         BigInteger nodeId = BigInteger.ZERO;
 170         try {
 171             GetDpidFromInterfaceInput
 172                     dpIdInput =
 173                     new GetDpidFromInterfaceInputBuilder().setIntfName(ifName).build();
 174             Future<RpcResult<GetDpidFromInterfaceOutput>>
 175                     dpIdOutput =
 176                     interfaceManagerRpcService.getDpidFromInterface(dpIdInput);
 177             RpcResult<GetDpidFromInterfaceOutput> dpIdResult = dpIdOutput.get();
 178             if (dpIdResult.isSuccessful()) {
 179                 nodeId = dpIdResult.getResult().getDpid();
 180             } else {
 181                 LOG.error("Could not retrieve DPN Id for interface {}", ifName);
 182             }
 183         } catch (InterruptedException | ExecutionException e) {
 184             LOG.error("Exception when getting dpn for interface {}", ifName,  e);
 185         }
 186         return nodeId;
 187     }
 188
 189     @Override
 190     public void onSubnetAddedToVpn(SubnetAddedToVpn notification) {
 191         throw new RuntimeException("Unsupported notification");
 192     }
 193
 194     @Override
 195     public void onSubnetDeletedFromVpn(SubnetDeletedFromVpn notification) {
 196         throw new RuntimeException("Unsupported notification");
 197     }
 198
 199     @Override
 200     public void onPortAddedToSubnet(PortAddedToSubnet notification) {
 201         throw new RuntimeException("Unsupported notification");
 202     }
 203
 204     @Override
 205     public void onPortRemovedFromSubnet(PortRemovedFromSubnet notification) {
 206         throw new RuntimeException("Unsupported notification");
 207     }
 208
 209     @Override
 210     public void onSubnetUpdatedInVpn(SubnetUpdatedInVpn notification) {
 211         throw new RuntimeException("Unsupported notification");
 212     }
 213
 214 }