2 * Copyright (c) 2018 Red Hat, Inc. 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.natservice.internal;
10 import javax.annotation.PostConstruct;
11 import javax.inject.Inject;
12 import javax.inject.Singleton;
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.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
16 import org.opendaylight.netvirt.natservice.api.CentralizedSwitchScheduler;
17 import org.opendaylight.netvirt.natservice.api.SnatServiceManager;
18 import org.opendaylight.serviceutils.upgrade.UpgradeState;
19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.idmanager.rev160406.IdManagerService;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.config.rev170206.NatserviceConfig;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.config.rev170206.NatserviceConfig.NatMode;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.ExtRouters;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.ext.routers.Routers;
25 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
26 import org.slf4j.Logger;
27 import org.slf4j.LoggerFactory;
30 public class SnatExternalRoutersListener extends AsyncDataTreeChangeListenerBase<Routers, SnatExternalRoutersListener> {
31 private static final Logger LOG = LoggerFactory.getLogger(SnatExternalRoutersListener.class);
33 private final DataBroker dataBroker;
34 private final IdManagerService idManager;
35 private final CentralizedSwitchScheduler centralizedSwitchScheduler;
36 private final NatMode natMode;
37 private final UpgradeState upgradeState;
38 private final SnatServiceManager natServiceManager;
41 public SnatExternalRoutersListener(final DataBroker dataBroker,
42 final IdManagerService idManager,
43 final CentralizedSwitchScheduler centralizedSwitchScheduler,
44 final NatserviceConfig config,
45 final SnatServiceManager natServiceManager,
46 final UpgradeState upgradeState) {
47 super(Routers.class, SnatExternalRoutersListener.class);
48 this.dataBroker = dataBroker;
49 this.idManager = idManager;
50 this.centralizedSwitchScheduler = centralizedSwitchScheduler;
51 this.upgradeState = upgradeState;
52 this.natServiceManager = natServiceManager;
54 this.natMode = config.getNatMode();
56 this.natMode = NatMode.Conntrack;
63 LOG.info("{} init", getClass().getSimpleName());
64 // This class handles ExternalRouters for Conntrack SNAT mode.
65 // For Controller SNAT mode, its handled in ExternalRoutersListeners.java
66 if (natMode == NatMode.Conntrack) {
67 registerListener(LogicalDatastoreType.CONFIGURATION, dataBroker);
68 NatUtil.createGroupIdPool(idManager);
73 protected InstanceIdentifier<Routers> getWildCardPath() {
74 return InstanceIdentifier.create(ExtRouters.class).child(Routers.class);
78 @SuppressWarnings("checkstyle:IllegalCatch")
79 protected void add(InstanceIdentifier<Routers> identifier, Routers routers) {
80 String routerName = routers.getRouterName();
81 if (upgradeState.isUpgradeInProgress()) {
82 LOG.warn("add event for ext-router {}, but upgrade is in progress.", routerName);
86 LOG.info("add : external router event for {}", routerName);
87 long routerId = NatUtil.getVpnId(dataBroker, routerName);
88 NatUtil.createRouterIdsConfigDS(dataBroker, routerId, routerName);
89 Uuid bgpVpnUuid = NatUtil.getVpnForRouter(dataBroker, routerName);
90 if (bgpVpnUuid != null) {
91 // Router associated to BGPVPN, ignoring it.
94 // Allocate Primary NAPTSwitch for this router
95 centralizedSwitchScheduler.scheduleCentralizedSwitch(routers);
99 protected void update(InstanceIdentifier<Routers> identifier, Routers original, Routers update) {
100 String routerName = original.getRouterName();
101 Long routerId = NatUtil.getVpnId(dataBroker, routerName);
102 if (routerId == NatConstants.INVALID_ID) {
103 LOG.error("update : external router event - Invalid routerId for routerName {}", routerName);
107 // Check if its update on SNAT flag
108 boolean originalSNATEnabled = original.isEnableSnat();
109 boolean updatedSNATEnabled = update.isEnableSnat();
110 LOG.info("update :called for router {} with originalSNATStatus {} and updatedSNATStatus {}",
111 routerName, originalSNATEnabled, updatedSNATEnabled);
112 if (!upgradeState.isUpgradeInProgress()) {
113 centralizedSwitchScheduler.scheduleCentralizedSwitch(update);
118 protected void remove(InstanceIdentifier<Routers> identifier, Routers router) {
119 if (identifier == null || router == null) {
120 LOG.error("remove : returning without processing since ext-router is null");
124 LOG.info("remove : external router event for {}", router.getRouterName());
125 centralizedSwitchScheduler.releaseCentralizedSwitch(router);
129 protected SnatExternalRoutersListener getDataTreeChangeListener() {
130 return SnatExternalRoutersListener.this;