vpnservice/federation-plugin/impl/src/main/java/org/opendaylight/netvirt/federation/plugin/filters/FederationIetfInterfaceFilter.java

   1 /*
   2  * Copyright (c) 2017 Hewlett Packard Enterprise, Co. 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.netvirt.federation.plugin.filters;
  10
  11 import javax.inject.Inject;
  12 import javax.inject.Singleton;
  13
  14 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  15 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  16 import org.opendaylight.netvirt.elanmanager.api.IElanService;
  17 import org.opendaylight.netvirt.federation.plugin.FederatedMappings;
  18 import org.opendaylight.netvirt.federation.plugin.FederationPluginConstants;
  19 import org.opendaylight.netvirt.federation.plugin.FederationPluginUtils;
  20 import org.opendaylight.netvirt.federation.plugin.PendingModificationCache;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.L2vlan;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.Interfaces;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.interfaces.ElanInterface;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.federation.plugin.rev170219.IfShadowProperties;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 @Singleton
  30 public class FederationIetfInterfaceFilter implements FederationPluginFilter<Interface, Interfaces> {
  31     private static final Logger LOG = LoggerFactory.getLogger(FederationIetfInterfaceFilter.class);
  32
  33     private final DataBroker dataBroker;
  34     private final IElanService elanService;
  35
  36     @Inject
  37     public FederationIetfInterfaceFilter(final DataBroker dataBroker, final IElanService elanService) {
  38         this.dataBroker = dataBroker;
  39         this.elanService = elanService;
  40         FederationPluginFilterRegistry.registerFilter(FederationPluginConstants.IETF_INTERFACE_KEY, this);
  41     }
  42
  43     @Override
  44     public FilterResult applyEgressFilter(Interface iface, FederatedMappings federatedMappings,
  45             PendingModificationCache<DataTreeModification<?>> pendingModifications,
  46             DataTreeModification<Interface> dataTreeModification) {
  47         String interfaceName = iface.getName();
  48         if (isShadow(iface)) {
  49             LOG.trace("Interface {} filtered out. Reason: shadow interface", interfaceName);
  50             return FilterResult.DENY;
  51         }
  52
  53         if (!L2vlan.class.equals(iface.getType())) {
  54             LOG.trace("Interface {} filtered out. Reason: type {}", interfaceName, iface.getType());
  55             return FilterResult.DENY;
  56         }
  57
  58         if (elanService.isExternalInterface(interfaceName)) {
  59             LOG.trace("Interface {} filtered out. Reason: external interface", interfaceName);
  60             return FilterResult.DENY;
  61         }
  62
  63         if (FederationPluginUtils.isDhcpInterface(dataBroker, interfaceName)) {
  64             LOG.trace("Interface {} filtered out. Reason: dhcp interface", interfaceName);
  65             return FilterResult.DENY;
  66         }
  67
  68         ElanInterface elanInterface = elanService.getElanInterfaceByElanInterfaceName(interfaceName);
  69         if (elanInterface == null) {
  70             elanInterface = FederationPluginUtils.getAssociatedDataObjectFromPending(
  71                     FederationPluginConstants.ELAN_INTERFACE_KEY, iface, pendingModifications);
  72             if (elanInterface == null) {
  73                 LOG.debug("ELAN Interface {} not found. Queueing IETF interface", interfaceName);
  74                 return FilterResult.QUEUE;
  75             }
  76         }
  77
  78         String elanInstanceName = elanInterface.getElanInstanceName();
  79         if (!federatedMappings.containsProducerNetworkId(elanInstanceName)) {
  80             LOG.trace("Interface {} filtered out. Reason: network {} not federated", elanInterface.getName(),
  81                     elanInstanceName);
  82             return FilterResult.DENY;
  83         }
  84
  85         return FilterResult.ACCEPT;
  86     }
  87
  88     @Override
  89     public FilterResult applyIngressFilter(String listenerKey, Interfaces iface) {
  90         return FilterResult.ACCEPT;
  91     }
  92
  93     private boolean isShadow(Interface iface) {
  94         IfShadowProperties ifShadowProperties = iface.getAugmentation(IfShadowProperties.class);
  95         return ifShadowProperties != null && Boolean.TRUE.equals(ifShadowProperties.isShadow());
  96     }
  97
  98 }