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 java.math.BigInteger;
12 import org.apache.commons.lang3.tuple.ImmutablePair;
13 import org.apache.commons.lang3.tuple.Pair;
14 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
16 import org.opendaylight.genius.datastoreutils.AsyncClusteredDataTreeChangeListenerBase;
17 import org.opendaylight.genius.mdsalutil.MDSALUtil;
18 import org.opendaylight.netvirt.dhcpservice.api.DHCPMConstants;
19 import org.opendaylight.netvirt.elanmanager.utils.ElanL2GwCacheUtils;
20 import org.opendaylight.netvirt.neutronvpn.api.l2gw.L2GatewayDevice;
21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.Port;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.subnets.Subnet;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.LocalUcastMacs;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.LogicalSwitches;
27 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
28 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
29 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
30 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
31 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
32 import org.slf4j.Logger;
33 import org.slf4j.LoggerFactory;
35 import com.google.common.base.Optional;
37 public class DhcpUCastMacListener extends AsyncClusteredDataTreeChangeListenerBase<LocalUcastMacs, DhcpUCastMacListener> implements AutoCloseable {
39 private static final Logger LOG = LoggerFactory.getLogger(DhcpUCastMacListener.class);
41 private final DhcpExternalTunnelManager dhcpExternalTunnelManager;
42 private final DhcpManager dhcpManager;
43 private final DataBroker broker;
45 public DhcpUCastMacListener(DhcpManager dhcpManager,DhcpExternalTunnelManager dhcpExtTunnelMgr, DataBroker dataBroker) {
46 super(LocalUcastMacs.class, DhcpUCastMacListener.class);
47 this.broker = dataBroker;
48 this.dhcpExternalTunnelManager = dhcpExtTunnelMgr;
49 this.dhcpManager = dhcpManager;
53 registerListener(LogicalDatastoreType.OPERATIONAL, broker);
57 protected InstanceIdentifier<LocalUcastMacs> getWildCardPath() {
58 return InstanceIdentifier.create(NetworkTopology.class).child(Topology.class).child(Node.class)
59 .augmentation(HwvtepGlobalAugmentation.class).child(LocalUcastMacs.class);
63 public void close() throws Exception {
65 LOG.info("DhcpUCastMacListener Closed");
69 protected void remove(InstanceIdentifier<LocalUcastMacs> identifier,
71 // Flow removal for table 18 is handled in Neutron Port delete.
72 //remove the new CR-DHCP
73 NodeId torNodeId = identifier.firstKeyOf(Node.class).getNodeId();
74 LogicalSwitches logicalSwitch = getLogicalSwitches(del);
75 if (null == logicalSwitch) {
76 LOG.error("DhcpUCastMacListener remove :Logical Switch ref doesn't have data {}", logicalSwitch);
79 String elanInstanceName = logicalSwitch.getHwvtepNodeName().getValue();
80 L2GatewayDevice device = ElanL2GwCacheUtils.getL2GatewayDeviceFromCache(elanInstanceName, torNodeId.getValue());
82 LOG.error("Logical Switch Device with name {} is not present in L2GWCONN cache", elanInstanceName);
85 IpAddress tunnelIp = device.getTunnelIp();
86 Pair<IpAddress, String> tunnelIpElanName = new ImmutablePair<IpAddress, String>(tunnelIp, elanInstanceName);
87 dhcpExternalTunnelManager.removeFromAvailableCache(tunnelIpElanName);
91 protected void update(InstanceIdentifier<LocalUcastMacs> identifier,
92 LocalUcastMacs original, LocalUcastMacs update) {
93 // TODO Auto-generated method stub
98 protected void add(InstanceIdentifier<LocalUcastMacs> identifier,
100 NodeId torNodeId = identifier.firstKeyOf(Node.class).getNodeId();
101 InstanceIdentifier<LogicalSwitches> logicalSwitchRef = (InstanceIdentifier<LogicalSwitches>) add.getLogicalSwitchRef().getValue();
102 Optional<LogicalSwitches> logicalSwitchOptional = MDSALUtil.read(broker, LogicalDatastoreType.OPERATIONAL, logicalSwitchRef);
103 if ( !logicalSwitchOptional.isPresent() ) {
104 LOG.error("Logical Switch ref doesn't have data {}", logicalSwitchRef);
107 LogicalSwitches logicalSwitch = logicalSwitchOptional.get();
108 String elanInstanceName = logicalSwitch.getHwvtepNodeName().getValue();
109 String macAddress = add.getMacEntryKey().getValue();
110 BigInteger vni = new BigInteger(logicalSwitch.getTunnelKey());
111 Port port = dhcpExternalTunnelManager.readVniMacToPortCache(vni, macAddress);
113 LOG.trace("No neutron port created for macAddress {}, tunnelKey {}", macAddress, vni);
116 L2GatewayDevice device = ElanL2GwCacheUtils.getL2GatewayDeviceFromCache(elanInstanceName, torNodeId.getValue());
117 if (device == null) {
118 LOG.error("Logical Switch Device with name {} is not present in L2GWCONN cache", elanInstanceName);
121 IpAddress tunnelIp = device.getTunnelIp();
122 Subnet subnet = dhcpManager.getNeutronSubnet(port);
123 if (null != subnet && !subnet.isEnableDhcp()) {
124 dhcpExternalTunnelManager.updateExistingVMTunnelIPCache(tunnelIp, elanInstanceName, macAddress);
125 LOG.warn("DhcpUCastMacListener add: flag for the subnetId {} is False so Table 18 entries are not added",
129 BigInteger designatedDpnId = dhcpExternalTunnelManager.readDesignatedSwitchesForExternalTunnel(tunnelIp, elanInstanceName);
130 if (designatedDpnId == null || designatedDpnId.equals(DHCPMConstants.INVALID_DPID)) {
131 LOG.trace("Unable to install flows for macAddress {}. TunnelIp {}, elanInstanceName {}, designatedDpn {} ", macAddress, tunnelIp, elanInstanceName, designatedDpnId);
132 dhcpExternalTunnelManager.updateLocalCache(tunnelIp, elanInstanceName, macAddress);
135 dhcpExternalTunnelManager.installDhcpFlowsForVms(tunnelIp, elanInstanceName, DhcpServiceUtils.getListOfDpns(broker), designatedDpnId, macAddress);
138 private LogicalSwitches getLogicalSwitches(LocalUcastMacs ucastMacs) {
139 LogicalSwitches logicalSwitch = null;
140 InstanceIdentifier<LogicalSwitches> logicalSwitchRef = (InstanceIdentifier<LogicalSwitches>)
141 ucastMacs.getLogicalSwitchRef().getValue();
142 Optional<LogicalSwitches> logicalSwitchOptional = MDSALUtil.read(broker, LogicalDatastoreType.OPERATIONAL,
144 if (logicalSwitchOptional.isPresent()) {
145 logicalSwitch = logicalSwitchOptional.get();
147 return logicalSwitch;
151 protected DhcpUCastMacListener getDataTreeChangeListener() {
152 return DhcpUCastMacListener.this;