2 * Copyright (c) 2016 Ericsson India Global Services Pvt Ltd. 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
8 package org.opendaylight.netvirt.dhcpservice;
10 import com.google.common.util.concurrent.MoreExecutors;
11 import java.math.BigInteger;
12 import java.util.List;
13 import java.util.concurrent.TimeUnit;
14 import javax.annotation.Nonnull;
15 import javax.annotation.PreDestroy;
16 import javax.inject.Inject;
17 import javax.inject.Singleton;
18 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
19 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
20 import org.opendaylight.genius.utils.hwvtep.HwvtepNodeHACache;
21 import org.opendaylight.genius.utils.hwvtep.HwvtepSouthboundConstants;
22 import org.opendaylight.infrautils.utils.concurrent.Executors;
23 import org.opendaylight.netvirt.dhcpservice.api.DhcpMConstants;
24 import org.opendaylight.serviceutils.tools.mdsal.listener.AbstractAsyncDataTreeChangeListener;
25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.dhcpservice.config.rev150710.DhcpserviceConfig;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.LogicalSwitches;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.RemoteMcastMacs;
30 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
31 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
32 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
33 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
34 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
35 import org.slf4j.Logger;
36 import org.slf4j.LoggerFactory;
39 public class DhcpMcastMacListener
40 extends AbstractAsyncDataTreeChangeListener<RemoteMcastMacs> {
42 private static final long TIMEOUT_FOR_SHUTDOWN = 30;
44 private static final Logger LOG = LoggerFactory.getLogger(DhcpMcastMacListener.class);
46 private final DataBroker dataBroker;
47 private final DhcpExternalTunnelManager externalTunnelManager;
48 private final DhcpL2GwUtil dhcpL2GwUtil;
49 private final DhcpserviceConfig config;
52 public DhcpMcastMacListener(DhcpExternalTunnelManager dhcpManager, DhcpL2GwUtil dhcpL2GwUtil, DataBroker dataBroker,
53 final DhcpserviceConfig config, HwvtepNodeHACache hwvtepNodeHACache) {
54 super(dataBroker, LogicalDatastoreType.CONFIGURATION,
55 InstanceIdentifier.create(NetworkTopology.class).child(Topology.class,
56 new TopologyKey(HwvtepSouthboundConstants.HWVTEP_TOPOLOGY_ID)).child(Node.class)
57 .augmentation(HwvtepGlobalAugmentation.class).child(RemoteMcastMacs.class),
58 Executors.newSingleThreadExecutor("IdPoolListener", LOG));
59 this.externalTunnelManager = dhcpManager;
60 this.dataBroker = dataBroker;
61 this.dhcpL2GwUtil = dhcpL2GwUtil;
66 public void update(@Nonnull InstanceIdentifier<RemoteMcastMacs> identifier, @Nonnull RemoteMcastMacs original,
67 @Nonnull RemoteMcastMacs update) {
72 public void add(@Nonnull InstanceIdentifier<RemoteMcastMacs> identifier, @Nonnull RemoteMcastMacs remoteMcastMacs) {
73 String elanInstanceName = getElanName(remoteMcastMacs);
74 IpAddress tunnelIp = dhcpL2GwUtil.getHwvtepNodeTunnelIp(identifier.firstIdentifierOf(Node.class));
75 if (tunnelIp == null) {
76 LOG.error("Could not find tunnelIp for {}", identifier);
79 List<BigInteger> dpns = DhcpServiceUtils.getListOfDpns(dataBroker);
80 BigInteger designatedDpnId = externalTunnelManager.designateDpnId(tunnelIp, elanInstanceName, dpns);
81 if (designatedDpnId == null || designatedDpnId.equals(DhcpMConstants.INVALID_DPID)) {
82 LOG.error("Unable to designate a DPN for {}", identifier);
87 public void remove(@Nonnull InstanceIdentifier<RemoteMcastMacs> identifier,
88 @Nonnull RemoteMcastMacs remoteMcastMacs) {
89 String elanInstanceName = getElanName(remoteMcastMacs);
90 IpAddress tunnelIp = dhcpL2GwUtil.getHwvtepNodeTunnelIp(identifier.firstIdentifierOf(Node.class));
91 if (tunnelIp == null) {
92 LOG.error("Could not find tunnelIp for {}", identifier);
95 BigInteger designatedDpnId = externalTunnelManager.readDesignatedSwitchesForExternalTunnel(
96 tunnelIp, elanInstanceName);
97 if (designatedDpnId == null) {
98 LOG.error("Could not find designated DPN ID elanInstanceName {}, tunnelIp {}", elanInstanceName, tunnelIp);
101 externalTunnelManager.removeDesignatedSwitchForExternalTunnel(designatedDpnId, tunnelIp, elanInstanceName);
106 public void close() {
107 if (config.isControllerDhcpEnabled()) {
110 MoreExecutors.shutdownAndAwaitTermination(getExecutorService(), TIMEOUT_FOR_SHUTDOWN, TimeUnit.SECONDS);
113 private String getElanName(RemoteMcastMacs mac) {
114 InstanceIdentifier<LogicalSwitches> logicalSwitchIid = (InstanceIdentifier<LogicalSwitches>)
115 mac.getLogicalSwitchRef().getValue();
116 return logicalSwitchIid.firstKeyOf(LogicalSwitches.class).getHwvtepNodeName().getValue();