openstack/net-virt-sfc/impl/src/main/java/org/opendaylight/ovsdb/openstack/netvirt/sfc/workaround/NetvirtSfcWorkaroundOF13Provider.java

   1 /*
   2  * Copyright © 2015 Red Hat, Inc. 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
   9 package org.opendaylight.ovsdb.openstack.netvirt.sfc.workaround;
  10
  11 import com.google.common.base.Preconditions;
  12 import java.util.List;
  13 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.ovsdb.openstack.netvirt.api.Constants;
  16 import org.opendaylight.ovsdb.openstack.netvirt.api.NodeCacheManager;
  17 import org.opendaylight.ovsdb.openstack.netvirt.api.OvsdbTables;
  18 import org.opendaylight.ovsdb.openstack.netvirt.api.Southbound;
  19 import org.opendaylight.ovsdb.openstack.netvirt.sfc.INetvirtSfcOF13Provider;
  20 import org.opendaylight.ovsdb.openstack.netvirt.sfc.ISfcClassifierService;
  21 import org.opendaylight.ovsdb.openstack.netvirt.sfc.NshUtils;
  22 import org.opendaylight.ovsdb.openstack.netvirt.sfc.SfcUtils;
  23 import org.opendaylight.ovsdb.southbound.SouthboundConstants;
  24 import org.opendaylight.ovsdb.utils.mdsal.utils.MdsalUtils;
  25 import org.opendaylight.ovsdb.utils.servicehelper.ServiceHelper;
  26 import org.opendaylight.sfc.provider.api.SfcProviderRenderedPathAPI;
  27 import org.opendaylight.sfc.provider.api.SfcProviderServiceForwarderAPI;
  28 import org.opendaylight.sfc.provider.api.SfcProviderServiceFunctionAPI;
  29 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.common.rev151017.SfName;
  30 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.sl.rev140701.data.plane.locator.locator.type.Ip;
  31 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.rsp.rev140701.CreateRenderedPathInput;
  32 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.rsp.rev140701.CreateRenderedPathInputBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.rsp.rev140701.rendered.service.path.first.hop.info.RenderedServicePathFirstHop;
  34 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.rsp.rev140701.rendered.service.paths.RenderedServicePath;
  35 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.rsp.rev140701.rendered.service.paths.rendered.service.path.RenderedServicePathHop;
  36 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.sf.rev140701.service.functions.ServiceFunction;
  37 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.sff.rev140701.service.function.forwarders.ServiceFunctionForwarder;
  38 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.sfp.rev140701.service.function.paths.ServiceFunctionPath;
  39 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev150317.access.lists.Acl;
  40 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev150317.access.lists.acl.access.list.entries.Ace;
  41 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev150317.access.lists.acl.access.list.entries.ace.Matches;
  42 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpAddress;
  43 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Address;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.sfc.acl.rev150105.RedirectToSfc;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.sfc.classifier.rev150105.Classifiers;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.sfc.classifier.rev150105.classifiers.Classifier;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.sfc.classifier.rev150105.classifiers.classifier.Bridges;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.sfc.classifier.rev150105.classifiers.classifier.bridges.Bridge;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.sfc.classifier.rev150105.classifiers.classifier.sffs.Sff;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbTerminationPointAugmentation;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.Options;
  54 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  55 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
  56 import org.osgi.framework.ServiceReference;
  57 import org.slf4j.Logger;
  58 import org.slf4j.LoggerFactory;
  59
  60 public class NetvirtSfcWorkaroundOF13Provider implements INetvirtSfcOF13Provider {
  61     private static final Logger LOG = LoggerFactory.getLogger(NetvirtSfcWorkaroundOF13Provider.class);
  62     private volatile NodeCacheManager nodeCacheManager;
  63     private volatile Southbound southbound;
  64     private volatile ISfcClassifierService sfcClassifierService;
  65     private static final short SFC_TABLE = 150;
  66     private static final int GPE_PORT = 6633;
  67     private static final String NETWORK_TYPE_VXLAN = "vxlan";
  68     private MdsalUtils mdsalUtils;
  69     private SfcUtils sfcUtils;
  70     private static final String VXGPE = "vxgpe";
  71     private static final String TUNNEL_DST = "192.168.120.31";
  72     private static final String TUNNEL_VNID = "10";
  73     public static final String TUNNEL_ENDPOINT_KEY = "local_ip";
  74
  75     public NetvirtSfcWorkaroundOF13Provider(final DataBroker dataBroker, MdsalUtils mdsalUtils, SfcUtils sfcUtils) {
  76         Preconditions.checkNotNull(dataBroker, "Input dataBroker cannot be NULL!");
  77         Preconditions.checkNotNull(mdsalUtils, "Input mdsalUtils cannot be NULL!");
  78         Preconditions.checkNotNull(sfcUtils, "Input sfcUtils cannot be NULL!");
  79
  80         this.mdsalUtils = mdsalUtils;
  81         this.sfcUtils = sfcUtils;
  82         //this.setDependencies(null);
  83     }
  84
  85     public void setSfcClassifierService(ISfcClassifierService sfcClassifierService) {
  86         this.sfcClassifierService = sfcClassifierService;
  87     }
  88
  89     @Override
  90     public void addClassifierRules(Bridge bridge, Acl acl) {
  91
  92     }
  93
  94     @Override
  95     public void addClassifierRules(Bridges bridges, Acl acl) {
  96         Preconditions.checkNotNull(bridges, "Input bridges cannot be NULL!");
  97         Preconditions.checkNotNull(acl, "Input acl cannot be NULL!");
  98     }
  99
 100     @Override
 101     public void removeClassifierRules(Sff sff, Acl acl) {
 102
 103     }
 104
 105     @Override
 106     public void addClassifierRules(Acl acl) {
 107         String aclName = acl.getAclName();
 108         Classifiers classifiers = mdsalUtils.read(LogicalDatastoreType.CONFIGURATION, sfcUtils.getClassifierIid());
 109         if (classifiers == null) {
 110             LOG.debug("addClassifierRules: No Classifiers found");
 111             return;
 112         }
 113
 114         LOG.debug("addClassifierRules: Classifiers: {}", classifiers);
 115         for (Classifier classifier : classifiers.getClassifier()) {
 116             if (classifier.getAcl().equals(aclName)) {
 117                 for (Ace ace : acl.getAccessListEntries().getAce()) {
 118                     processAclEntry(ace);
 119                 }
 120             }
 121         }
 122     }
 123
 124     @Override
 125     public void removeClassifierRules(Acl acl) {
 126
 127     }
 128
 129     private void processAclEntry(Ace entry) {
 130         Matches matches = entry.getMatches();
 131         Preconditions.checkNotNull(matches, "Input bridges cannot be NULL!");
 132
 133         RenderedServicePath rsp = getRenderedServicePath(entry);
 134         if (rsp == null) {
 135             LOG.warn("Failed to get renderedServicePatch for entry: {}", entry);
 136             return;
 137         }
 138
 139         handleRenderedServicePath2(rsp, entry);
 140     }
 141
 142     private void handleRenderedServicePath(RenderedServicePath rsp, Ace entry) {
 143         LOG.info("handleRenderedServicePath: RSP: {}", rsp);
 144
 145         Matches matches = entry.getMatches();
 146         if (matches == null) {
 147             LOG.warn("processAclEntry: matches not found");
 148             return;
 149         }
 150
 151         List<RenderedServicePathHop> pathHopList = rsp.getRenderedServicePathHop();
 152         if (pathHopList.isEmpty()) {
 153             LOG.warn("handleRenderedServicePath: RSP {} has empty hops!!", rsp.getName());
 154             return;
 155         }
 156         LOG.info("handleRenderedServicePath: pathHopList: {}", pathHopList);
 157
 158         final List<Node> bridgeNodes = nodeCacheManager.getBridgeNodes();
 159         if (bridgeNodes == null || bridgeNodes.isEmpty()) {
 160             LOG.warn("handleRenderedServicePath: There are no bridges to process");
 161             return;
 162         }
 163         for (Node bridgeNode : bridgeNodes) {
 164             OvsdbBridgeAugmentation ovsdbBridgeAugmentation = southbound.getBridge(bridgeNode, "br-int");
 165             if (ovsdbBridgeAugmentation == null) {
 166                 continue;
 167             }
 168             long vxGpeOfPort = getOFPort(bridgeNode, VXGPE);
 169             if (vxGpeOfPort == 0L) {
 170                 LOG.warn("programAclEntry: Could not identify tunnel port {} -> OF ({}) on {}",
 171                         VXGPE, vxGpeOfPort, bridgeNode);
 172                 continue;
 173             }
 174             long dataPathId = southbound.getDataPathId(bridgeNode);
 175             if (dataPathId == 0L) {
 176                 LOG.warn("programAclEntry: Could not identify datapathId on {}", bridgeNode);
 177                 continue;
 178             }
 179
 180             // Find the first Hop within an RSP.
 181             // The classifier flow needs to send all matched traffic to this first hop SFF.
 182             RenderedServicePathFirstHop firstRspHop = SfcProviderRenderedPathAPI
 183                     .readRenderedServicePathFirstHop(rsp.getName());
 184
 185             LOG.info("handleRenderedServicePath: firstRspHop: {}", firstRspHop);
 186             LOG.debug("handleRenderedServicePath: First Hop IPAddress = {}, Port = {}",
 187                     firstRspHop.getIp().getIpv4Address().getValue(),
 188                     firstRspHop.getPort().getValue());
 189
 190             NshUtils nshHeader = new NshUtils();
 191             nshHeader.setNshMetaC1(NshUtils.convertIpAddressToLong(new Ipv4Address(TUNNEL_DST)));
 192             nshHeader.setNshMetaC2(Long.parseLong(TUNNEL_VNID)); // get from register //get from
 193             nshHeader.setNshNsp(rsp.getPathId());
 194
 195             RenderedServicePathHop firstHop = pathHopList.get(0);
 196             RenderedServicePathHop lastHop = pathHopList.get(pathHopList.size()-1);
 197             ServiceFunction serviceFunction =
 198                     SfcProviderServiceFunctionAPI.readServiceFunction(
 199                             SfName.getDefaultInstance(firstHop.getServiceFunctionName().getValue()));
 200             if (serviceFunction == null) {
 201                 LOG.warn("programAclEntry: Could not identify ServiceFunction {} on {}",
 202                         firstHop.getServiceFunctionName().getValue(), bridgeNode);
 203                 continue;
 204             }
 205
 206             nshHeader.setNshNsi(firstHop.getServiceIndex());
 207             // workaround: bypass sff and got directly to sf
 208             //nshHeader.setNshTunIpDst(firstRspHop.getIp().getIpv4Address());
 209             IpAddress sfIpAddress = sfcUtils.getSfIpAddress(serviceFunction);
 210             String sfDplName = sfcUtils.getSfDplName(serviceFunction);
 211             //sfcUtils.getSfIp(firstHop.getServiceFunctionName().getValue());
 212             nshHeader.setNshTunIpDst(sfIpAddress.getIpv4Address());
 213             nshHeader.setNshTunUdpPort(firstRspHop.getPort());
 214             LOG.debug("handleRenderedServicePath: NSH Header = {}", nshHeader);
 215
 216             sfcClassifierService.programIngressClassifier(dataPathId, entry.getRuleName(), matches,
 217                     nshHeader, vxGpeOfPort, true);
 218
 219             sfcClassifierService.program_sfEgress(dataPathId, GPE_PORT, true);
 220             long sfOfPort = getSfPort(bridgeNode, sfDplName);
 221
 222             String sfMac = getMacFromExternalIds(bridgeNode, sfDplName);
 223             String sfIpString = new String(sfIpAddress.getValue());
 224             LOG.info("handleRenderedServicePath: sfDplName: {}, sfMac: {}, sfOfPort: {}, sfIpAddress: {}",
 225                     sfDplName, sfMac, sfOfPort, sfIpString);
 226             if (sfMac != null) { // install if the sf is on this bridge, expand when using multiple bridges
 227                 sfcClassifierService.program_sfIngress(dataPathId, GPE_PORT, sfOfPort, sfIpString, sfDplName, true);
 228                 sfcClassifierService.programStaticArpEntry(dataPathId, 0L, sfMac, sfIpString, true);
 229             }
 230
 231             short lastServiceindex = (short)((lastHop.getServiceIndex()).intValue() - 1);
 232             sfcClassifierService.programEgressClassifier1(dataPathId, vxGpeOfPort, rsp.getPathId(),
 233                     lastServiceindex, (int)sfOfPort, 0, (short)0, true);
 234             sfcClassifierService.programEgressClassifier2(dataPathId, vxGpeOfPort, rsp.getPathId(),
 235                     lastServiceindex, (int)sfOfPort, 0, true);
 236
 237             sfcClassifierService.programSfcTable(dataPathId, vxGpeOfPort, SFC_TABLE, true);
 238         }
 239     }
 240
 241     private void handleRenderedServicePath2(RenderedServicePath rsp, Ace entry) {
 242         LOG.info("handleRenderedServicePath: RSP: {}", rsp);
 243
 244         Matches matches = entry.getMatches();
 245         if (matches == null) {
 246             LOG.warn("processAclEntry: matches not found");
 247             return;
 248         }
 249
 250         List<RenderedServicePathHop> pathHopList = rsp.getRenderedServicePathHop();
 251         if (pathHopList.isEmpty()) {
 252             LOG.warn("handleRenderedServicePath: RSP {} has empty hops!!", rsp.getName());
 253             return;
 254         }
 255         LOG.info("handleRenderedServicePath: pathHopList: {}", pathHopList);
 256
 257         RenderedServicePathFirstHop firstRspHop = SfcProviderRenderedPathAPI
 258                 .readRenderedServicePathFirstHop(rsp.getName());
 259         LOG.info("handleRenderedServicePath: firstRspHop: {}", firstRspHop);
 260
 261         RenderedServicePathHop firstHop = pathHopList.get(0);
 262         RenderedServicePathHop lastHop = pathHopList.get(pathHopList.size()-1);
 263
 264         final List<Node> bridgeNodes = nodeCacheManager.getBridgeNodes();
 265         if (bridgeNodes == null || bridgeNodes.isEmpty()) {
 266             LOG.warn("handleRenderedServicePath: There are no bridges to process");
 267             return;
 268         }
 269         for (RenderedServicePathHop hop : pathHopList) {
 270             for (Node bridgeNode : bridgeNodes) {
 271                 long vxGpeOfPort = getOFPort(bridgeNode, VXGPE);
 272                 if (vxGpeOfPort == 0L) {
 273                     LOG.warn("programAclEntry: Could not identify gpe vtep {} -> OF ({}) on {}",
 274                             VXGPE, vxGpeOfPort, bridgeNode);
 275                     continue;
 276                 }
 277                 long dataPathId = southbound.getDataPathId(bridgeNode);
 278                 if (dataPathId == 0L) {
 279                     LOG.warn("programAclEntry: Could not identify datapathId on {}", bridgeNode);
 280                     continue;
 281                 }
 282
 283                 ServiceFunction serviceFunction =
 284                         SfcProviderServiceFunctionAPI.readServiceFunction(firstHop.getServiceFunctionName());
 285                 if (serviceFunction == null) {
 286                     LOG.warn("programAclEntry: Could not identify ServiceFunction {} on {}",
 287                             firstHop.getServiceFunctionName().getValue(), bridgeNode);
 288                     continue;
 289                 }
 290                 ServiceFunctionForwarder serviceFunctionForwarder =
 291                         SfcProviderServiceForwarderAPI
 292                                 .readServiceFunctionForwarder(hop.getServiceFunctionForwarder());
 293                 if (serviceFunctionForwarder == null) {
 294                     LOG.warn("programAclEntry: Could not identify ServiceFunctionForwarder {} on {}",
 295                             firstHop.getServiceFunctionName().getValue(), bridgeNode);
 296                     continue;
 297                 }
 298
 299                 handleSf(bridgeNode, serviceFunction);
 300                 handleSff(bridgeNode, serviceFunctionForwarder, serviceFunction, hop, firstHop, lastHop,
 301                         entry.getRuleName(), matches, vxGpeOfPort, rsp);
 302                 if (firstHop == lastHop) {
 303                     handleSff(bridgeNode, serviceFunctionForwarder, serviceFunction, hop, null, lastHop,
 304                             entry.getRuleName(), matches, vxGpeOfPort, rsp);
 305                 }
 306             }
 307         }
 308     }
 309
 310     private void handleSff(Node bridgeNode, ServiceFunctionForwarder serviceFunctionForwarder,
 311                            ServiceFunction serviceFunction,
 312                            RenderedServicePathHop hop,
 313                            RenderedServicePathHop firstHop,
 314                            RenderedServicePathHop lastHop,
 315                            String ruleName, Matches matches,
 316                            long vxGpeOfPort, RenderedServicePath rsp) {
 317         long dataPathId = southbound.getDataPathId(bridgeNode);
 318
 319         if (hop == firstHop) {
 320             NshUtils nshHeader = new NshUtils();
 321             nshHeader.setNshNsp(rsp.getPathId());
 322             nshHeader.setNshNsi(firstHop.getServiceIndex());
 323             if (isSffOnBridge(bridgeNode, serviceFunctionForwarder)) {
 324                 Ip ip = sfcUtils.getSfIp(serviceFunction);
 325                 nshHeader.setNshTunIpDst(ip.getIp().getIpv4Address());
 326                 nshHeader.setNshTunUdpPort(ip.getPort());
 327             } else {
 328                 Ip ip = sfcUtils.getSffIp(serviceFunctionForwarder);
 329                 nshHeader.setNshTunIpDst(ip.getIp().getIpv4Address());
 330                 nshHeader.setNshTunUdpPort(ip.getPort());
 331             }
 332             sfcClassifierService.programIngressClassifier(dataPathId, ruleName, matches,
 333                     nshHeader, vxGpeOfPort, true);
 334         } else if (hop == lastHop) {
 335             short lastServiceindex = (short)((lastHop.getServiceIndex()).intValue() - 1);
 336             String sfDplName = sfcUtils.getSfDplName(serviceFunction);
 337             long sfOfPort = getSfPort(bridgeNode, sfDplName);
 338             sfcClassifierService.programEgressClassifier1(dataPathId, vxGpeOfPort, rsp.getPathId(),
 339                     lastServiceindex, (int)sfOfPort, 0, (short)0, true);
 340             sfcClassifierService.programEgressClassifier2(dataPathId, vxGpeOfPort, rsp.getPathId(),
 341                     lastServiceindex, (int)sfOfPort, 0, true);
 342         } else {
 343             // add typical sff flows
 344         }
 345
 346         sfcClassifierService.programSfcTable(dataPathId, vxGpeOfPort, SFC_TABLE, true);
 347     }
 348
 349     void handleSf(Node bridgeNode, ServiceFunction serviceFunction) {
 350         if (isSfOnBridge(bridgeNode, serviceFunction)) {
 351             long dataPathId = southbound.getDataPathId(bridgeNode);
 352             Ip ip = sfcUtils.getSfIp(serviceFunction);
 353             String sfIpAddr = String.valueOf(ip.getIp().getValue());
 354             int sfIpPort = ip.getPort().getValue(); //GPE_PORT
 355             String sfDplName = sfcUtils.getSfDplName(serviceFunction);
 356             long sfOfPort = getSfPort(bridgeNode, sfDplName);
 357             String sfMac = getMacFromExternalIds(bridgeNode, sfDplName);
 358             //should be sffdplport, but they should all be the same 6633/4790
 359             sfcClassifierService.program_sfEgress(dataPathId, sfIpPort, true);
 360             sfcClassifierService.program_sfIngress(dataPathId, sfIpPort, sfOfPort, sfIpAddr, sfDplName, true);
 361             sfcClassifierService.programStaticArpEntry(dataPathId, 0L, sfMac, sfIpAddr, true);
 362         }
 363     }
 364
 365     private boolean isSffOnBridge(Node bridgeNode, ServiceFunctionForwarder serviceFunctionForwarder) {
 366         String local_ip = "";
 367         Ip ip = sfcUtils.getSffIp(serviceFunctionForwarder);
 368         Node ovsdbNode = southbound.readOvsdbNode(bridgeNode);
 369         if (ovsdbNode != null) {
 370             OvsdbNodeAugmentation ovsdbNodeAugmentation = ovsdbNode.getAugmentation(OvsdbNodeAugmentation.class);
 371             if (ovsdbNodeAugmentation != null && ovsdbNodeAugmentation.getOpenvswitchOtherConfigs() != null) {
 372                 southbound.getOtherConfig(ovsdbNode, OvsdbTables.OPENVSWITCH, TUNNEL_ENDPOINT_KEY);
 373             }
 374
 375         }
 376         return local_ip.equals(String.valueOf(ip.getIp().getValue()));
 377     }
 378
 379     private boolean isSfOnBridge(Node bridgeNode, ServiceFunction serviceFunction) {
 380         String sfDplName = sfcUtils.getSfDplName(serviceFunction);
 381         long sfOfPort = getSfPort(bridgeNode, sfDplName);
 382         return sfOfPort != 0L;
 383     }
 384
 385     private RenderedServicePath getRenderedServicePath (Ace entry) {
 386         RenderedServicePath rsp = null;
 387         RedirectToSfc sfcRedirect = entry.getActions().getAugmentation(RedirectToSfc.class);
 388         LOG.debug("Processing ACL entry = {} sfcRedirect = {}", entry.getRuleName(), sfcRedirect);
 389         if (sfcRedirect == null) {
 390             LOG.warn("processAClEntry: sfcRedirect is null");
 391             return null;
 392         }
 393
 394         if (sfcRedirect.getRspName() != null) {
 395             rsp = getRenderedServicePathFromRsp(sfcRedirect.getRspName());
 396         } else if (sfcRedirect.getSfpName() != null) {
 397             LOG.warn("getRenderedServicePath: sfp not handled yet");
 398         } else {
 399             rsp = getRenderedServicePathFromSfc(entry);
 400         }
 401         LOG.info("getRenderedServicePath: rsp: {}", rsp);
 402         return rsp;
 403     }
 404
 405     private RenderedServicePath getRenderedServicePathFromRsp(String rspName) {
 406         return sfcUtils.getRsp(rspName);
 407     }
 408
 409     private RenderedServicePath getRenderedServicePathFromSfc (Ace entry) {
 410         RedirectToSfc sfcRedirect = entry.getActions().getAugmentation(RedirectToSfc.class);
 411         LOG.debug("Processing ACL entry = {} sfcRedirect = {}", entry.getRuleName(), sfcRedirect);
 412         if (sfcRedirect == null) {
 413             LOG.warn("processAClEntry: sfcRedirect is null");
 414             return null;
 415         }
 416
 417         String sfcName = sfcRedirect.getSfcName();
 418         ServiceFunctionPath sfp = sfcUtils.getSfp(sfcName);
 419         if (sfp == null || sfp.getName() == null) {
 420             LOG.warn("There is no configured SFP with sfcName = {}; so skip installing the ACL entry!!", sfcName);
 421             return null;
 422         }
 423
 424         LOG.debug("Processing Redirect to SFC = {}, SFP = {}", sfcName, sfp);
 425         // If RSP doesn't exist, create an RSP.
 426         String sfpName = sfp.getName().getValue();
 427         RenderedServicePath rsp = sfcUtils.getRspforSfp(sfpName);
 428         String rspName = sfp.getName().getValue() + "_rsp";
 429         if (rsp == null) {
 430             LOG.info("No configured RSP corresponding to SFP = {}, Creating new RSP = {}", sfpName, rspName);
 431             CreateRenderedPathInput rspInput = new CreateRenderedPathInputBuilder()
 432                     .setParentServiceFunctionPath(sfpName)
 433                     .setName(rspName)
 434                     .setSymmetric(sfp.isSymmetric())
 435                     .build();
 436             rsp = SfcProviderRenderedPathAPI.createRenderedServicePathAndState(sfp, rspInput);
 437             if (rsp == null) {
 438                 LOG.warn("failed to add RSP");
 439                 return null;
 440             }
 441
 442             // If SFP is symmetric, create RSP in the reverse direction.
 443             if (sfp.isSymmetric()) {
 444                 LOG.info("SFP = {} is symmetric, installing RSP in the reverse direction!!", sfpName);
 445                 String rspNameRev = rspName + "-Reverse";
 446                 RenderedServicePath rspReverse = mdsalUtils.read(LogicalDatastoreType.OPERATIONAL,
 447                         sfcUtils.getRspId(rspNameRev));
 448                 if (rspReverse == null) {
 449                     rspReverse = SfcProviderRenderedPathAPI.createSymmetricRenderedServicePathAndState(rsp);
 450                     if (rspReverse == null) {
 451                         LOG.warn("failed to add reverse RSP");
 452                         return null;
 453                     }
 454                 }
 455             }
 456         }
 457         return rsp;
 458     }
 459
 460     // loop through all ports looking for vxlan types, skip vxgpe, keep the rest
 461     // first pass we only have two tunnels: one for normal vxlan and the other for gpe
 462     // so just return the first non-gpe vxlan port
 463     private long getTunnelOfPort(Node bridgeNode, String vxGpePortName) {
 464         long port = 0L;
 465         List<OvsdbTerminationPointAugmentation> ovsdbTerminationPointAugmentations =
 466                 southbound.getTerminationPointsOfBridge(bridgeNode);
 467         if (!ovsdbTerminationPointAugmentations.isEmpty()) {
 468             for (OvsdbTerminationPointAugmentation terminationPointAugmentation :
 469                     ovsdbTerminationPointAugmentations) {
 470                 if (terminationPointAugmentation.getInterfaceType() ==
 471                         SouthboundConstants.OVSDB_INTERFACE_TYPE_MAP.get(NETWORK_TYPE_VXLAN)) {
 472                     if (!terminationPointAugmentation.getName().equals(vxGpePortName)) {
 473                         port = terminationPointAugmentation.getOfport();
 474                         break;
 475                     }
 476                 }
 477             }
 478         }
 479         return port;
 480     }
 481
 482     private long getSfPort(Node bridgeNode, String sfPortName) {
 483         long port = 0L;
 484         port = getOFPort(bridgeNode, sfPortName);
 485         return port;
 486     }
 487
 488     private long getOFPort(Node bridgeNode, String portName) {
 489         long ofPort = 0L;
 490         OvsdbTerminationPointAugmentation port =
 491                 southbound.extractTerminationPointAugmentation(bridgeNode, portName);
 492         if (port != null) {
 493             ofPort = southbound.getOFPort(port);
 494         }
 495         if (ofPort == 0L) {
 496             for (int i = 0; i < 5; i++) {
 497                 LOG.info("Looking for ofPort {}, try: {}", portName, i);
 498                 if (ofPort == 0L) {
 499                     TerminationPoint tp = southbound.readTerminationPoint(bridgeNode, null, portName);
 500                     if (tp != null) {
 501                         port = tp.getAugmentation(OvsdbTerminationPointAugmentation.class);
 502                         if (port != null) {
 503                             ofPort = southbound.getOFPort(port);
 504                             break;
 505                         }
 506                     }
 507                 }
 508                 try {
 509                     Thread.sleep(1000);
 510                 } catch (InterruptedException e) {
 511                     e.printStackTrace();
 512                 }
 513             }
 514         }
 515         return ofPort;
 516     }
 517
 518     private String getMacFromOptions(Node bridgeNode, String portName) {
 519         String mac = null;
 520         OvsdbTerminationPointAugmentation port = southbound.extractTerminationPointAugmentation(bridgeNode, portName);
 521         LOG.info("getMac: portName: {}, bridgeNode: {},,, port: {}", portName, bridgeNode, port);
 522         if (port != null && port.getOptions() != null) {
 523             //mac = southbound.getOptionsValue(port.getOptions(), EXTERNAL_ID_VM_MAC);
 524             for (Options option : port.getOptions()) {
 525                 LOG.info("getMac: option: {}", option);
 526                 if (option.getOption().equals(Constants.EXTERNAL_ID_VM_MAC)) {
 527                     mac = option.getValue();
 528                     break;
 529                 }
 530             }
 531         }
 532         return mac;
 533     }
 534
 535     private String getMacFromExternalIds(Node bridgeNode, String portName) {
 536         String mac = null;
 537         OvsdbTerminationPointAugmentation port = southbound.extractTerminationPointAugmentation(bridgeNode, portName);
 538         LOG.info("getMac: portName: {}, bridgeNode: {},,, port: {}", portName, bridgeNode, port);
 539         if (port != null && port.getInterfaceExternalIds() != null) {
 540             mac = southbound.getInterfaceExternalIdsValue(port, Constants.EXTERNAL_ID_VM_MAC);
 541         }
 542         return mac;
 543     }
 544
 545     @Override
 546     public void setDependencies(ServiceReference serviceReference) {
 547         nodeCacheManager = (NodeCacheManager) ServiceHelper.getGlobalInstance(NodeCacheManager.class, this);
 548         southbound = (Southbound) ServiceHelper.getGlobalInstance(Southbound.class, this);
 549         sfcClassifierService =
 550                 (ISfcClassifierService) ServiceHelper.getGlobalInstance(ISfcClassifierService.class, this);
 551         LOG.info("sfcClassifierService= {}", sfcClassifierService);
 552     }
 553 }