vpnservice/sfc/classifier/impl/src/main/java/org/opendaylight/netvirt/sfc/classifier/service/domain/impl/ConfigurationClassifierImpl.java

   1 /*
   2  * Copyright (c) 2017 Ericsson 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.netvirt.sfc.classifier.service.domain.impl;
  10
  11 import java.util.ArrayList;
  12 import java.util.Collections;
  13 import java.util.HashMap;
  14 import java.util.HashSet;
  15 import java.util.List;
  16 import java.util.Map;
  17 import java.util.Objects;
  18 import java.util.Optional;
  19 import java.util.Set;
  20 import java.util.stream.Collectors;
  21 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  22 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  23 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  24 import org.opendaylight.netvirt.sfc.classifier.providers.GeniusProvider;
  25 import org.opendaylight.netvirt.sfc.classifier.providers.NetvirtProvider;
  26 import org.opendaylight.netvirt.sfc.classifier.providers.OpenFlow13Provider;
  27 import org.opendaylight.netvirt.sfc.classifier.providers.SfcProvider;
  28 import org.opendaylight.netvirt.sfc.classifier.service.domain.ClassifierEntry;
  29 import org.opendaylight.netvirt.sfc.classifier.service.domain.api.ClassifierRenderableEntry;
  30 import org.opendaylight.netvirt.sfc.classifier.service.domain.api.ClassifierState;
  31 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.rsp.rev140701.rendered.service.paths.RenderedServicePath;
  32 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.sfc.sff.logical.rev160620.DpnIdType;
  33 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160218.AccessLists;
  34 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160218.access.lists.Acl;
  35 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160218.access.lists.acl.AccessListEntries;
  36 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160218.access.lists.acl.access.list.entries.Ace;
  37 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160218.access.lists.acl.access.list.entries.ace.Matches;
  38 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceKey;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.sfc.acl.rev150105.NetvirtsfcAclActions;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.sfc.acl.rev150105.NeutronNetwork;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.sfc.acl.rev150105.RedirectToSfc;
  43 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  44 import org.slf4j.Logger;
  45 import org.slf4j.LoggerFactory;
  46
  47 public class ConfigurationClassifierImpl implements ClassifierState {
  48
  49     private final SfcProvider sfcProvider;
  50     private final DataBroker dataBroker;
  51     private final GeniusProvider geniusProvider;
  52     private final NetvirtProvider netvirtProvider;
  53     private static final Logger LOG = LoggerFactory.getLogger(ConfigurationClassifierImpl.class);
  54     private static final String LOCAL_HOST_IP = "127.0.0.1";
  55
  56     public ConfigurationClassifierImpl(GeniusProvider geniusProvider,
  57                                        NetvirtProvider netvirtProvider,
  58                                        SfcProvider sfcProvider,
  59                                        DataBroker dataBroker) {
  60         this.geniusProvider = geniusProvider;
  61         this.netvirtProvider = netvirtProvider;
  62         this.sfcProvider = sfcProvider;
  63         this.dataBroker = dataBroker;
  64     }
  65
  66     @Override
  67     public Set<ClassifierRenderableEntry> getAllEntries() {
  68         return readAcls().stream()
  69                 .map(Acl::getAccessListEntries)
  70                 .filter(Objects::nonNull)
  71                 .map(AccessListEntries::getAce)
  72                 .filter(Objects::nonNull)
  73                 .flatMap(List::stream)
  74                 .map(this::getEntries)
  75                 .flatMap(Set::stream)
  76                 .collect(Collectors.toSet());
  77     }
  78
  79     public List<Acl> readAcls() {
  80         InstanceIdentifier<AccessLists> aclsIID = InstanceIdentifier.builder(AccessLists.class).build();
  81         com.google.common.base.Optional<AccessLists> acls =
  82                 MDSALUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION, aclsIID);
  83         LOG.trace("Acls read from datastore: {}", acls);
  84         return acls.transform(AccessLists::getAcl).or(Collections.emptyList());
  85     }
  86
  87     public Set<ClassifierRenderableEntry> getEntries(Ace ace) {
  88
  89         LOG.trace("Get entries for Ace {}", ace);
  90
  91         Matches matches = ace.getMatches();
  92
  93         if (matches == null) {
  94             LOG.trace("Ace has no matches");
  95             return Collections.emptySet();
  96         }
  97
  98         RenderedServicePath rsp = Optional.ofNullable(ace.getActions())
  99                 .map(actions -> actions.getAugmentation(RedirectToSfc.class))
 100                 .map(NetvirtsfcAclActions::getRspName)
 101                 .flatMap(sfcProvider::getRenderedServicePath)
 102                 .orElse(null);
 103
 104         if (rsp == null) {
 105             LOG.trace("Ace has no valid SFC redirect action");
 106             return Collections.emptySet();
 107         }
 108
 109         Long nsp = rsp.getPathId();
 110         Short nsi = rsp.getStartingIndex();
 111
 112         if (nsp == null || nsi == null) {
 113             LOG.trace("RSP has no valid NSI or NSP");
 114             return Collections.emptySet();
 115         }
 116
 117         DpnIdType firstHopDpn = sfcProvider.getFirstHopSfInterfaceFromRsp(rsp)
 118                 .flatMap(geniusProvider::getDpnIdFromInterfaceName)
 119                 .orElse(null);
 120
 121         if (firstHopDpn == null) {
 122             LOG.error("RSP has no valid first hop DPN");
 123             return Collections.emptySet();
 124         }
 125
 126
 127         Map<NodeId, List<InterfaceKey>> nodeToInterfaces = new HashMap<>();
 128         NeutronNetwork neutronNetwork = matches.getAugmentation(NeutronNetwork.class);
 129         if (neutronNetwork != null) {
 130             for (String iface : netvirtProvider.getLogicalInterfacesFromNeutronNetwork(neutronNetwork)) {
 131                 geniusProvider.getNodeIdFromLogicalInterface(iface).ifPresent(
 132                     nodeId -> nodeToInterfaces.computeIfAbsent(nodeId, key -> new ArrayList<>()).add(
 133                             new InterfaceKey(iface)));
 134             }
 135         }
 136
 137         LOG.trace("Got classifier nodes and interfaces: {}", nodeToInterfaces);
 138
 139         String firstHopIp = geniusProvider.getIpFromDpnId(firstHopDpn).orElse(null);
 140         Set<ClassifierRenderableEntry> entries = new HashSet<>();
 141         nodeToInterfaces.forEach((nodeId, ifaces) -> {
 142             // Get node info
 143             DpnIdType nodeDpn = new DpnIdType(OpenFlow13Provider.getDpnIdFromNodeId(nodeId));
 144             String nodeIp = geniusProvider.getIpFromDpnId(nodeDpn).orElse(LOCAL_HOST_IP);
 145
 146             if (firstHopIp == null && !nodeDpn.equals(firstHopDpn)) {
 147                 LOG.warn("Classifier on node {} has no IP to reach first hop on node {}", nodeDpn, firstHopDpn);
 148                 return;
 149             }
 150
 151             // Add entries that are not based on ingress or egress interface
 152             entries.add(ClassifierEntry.buildNodeEntry(nodeId));
 153             entries.add(ClassifierEntry.buildPathEntry(
 154                     nodeId,
 155                     nsp,
 156                     nodeDpn.equals(firstHopDpn) ? null : firstHopIp));
 157
 158             // Add entries based on ingress interface
 159             ifaces.forEach(interfaceKey -> {
 160                 entries.add(ClassifierEntry.buildIngressEntry(interfaceKey));
 161                 entries.add(ClassifierEntry.buildMatchEntry(
 162                         nodeId,
 163                         geniusProvider.getNodeConnectorIdFromInterfaceName(interfaceKey.getName()).get(),
 164                         matches,
 165                         nsp,
 166                         nsi));
 167             });
 168
 169             // Egress services must bind to egress ports. Since we dont know before-hand what
 170             // the egress ports will be, we will bind on all switch ports. If the packet
 171             // doesnt have NSH, it will be returned to the the egress dispatcher table.
 172             List<String> interfaceUuidStrList = geniusProvider.getInterfacesFromNode(nodeId);
 173             interfaceUuidStrList.forEach(interfaceUuidStr -> {
 174                 InterfaceKey interfaceKey = new InterfaceKey(interfaceUuidStr);
 175                 Optional<String> remoteIp = geniusProvider.getRemoteIpAddress(interfaceUuidStr);
 176                 entries.add(ClassifierEntry.buildEgressEntry(interfaceKey, remoteIp.orElse(nodeIp)));
 177             });
 178         });
 179
 180         return entries;
 181     }
 182 }