2 * Copyright (c) 2017, 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
9 package org.opendaylight.netvirt.natservice.ha;
11 import static org.opendaylight.genius.infra.Datastore.CONFIGURATION;
13 import java.time.Duration;
14 import java.util.Objects;
15 import java.util.concurrent.ExecutionException;
16 import javax.annotation.PreDestroy;
17 import javax.inject.Inject;
18 import javax.inject.Singleton;
19 import org.opendaylight.genius.datastoreutils.listeners.DataTreeEventCallbackRegistrar;
20 import org.opendaylight.genius.infra.Datastore;
21 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
22 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
23 import org.opendaylight.genius.infra.TypedReadWriteTransaction;
24 import org.opendaylight.infrautils.utils.concurrent.Executors;
25 import org.opendaylight.infrautils.utils.concurrent.LoggingFutures;
26 import org.opendaylight.mdsal.binding.api.DataBroker;
27 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
28 import org.opendaylight.netvirt.natservice.api.SnatServiceManager;
29 import org.opendaylight.netvirt.natservice.internal.NatConstants;
30 import org.opendaylight.netvirt.natservice.internal.NatUtil;
31 import org.opendaylight.serviceutils.tools.listener.AbstractAsyncDataTreeChangeListener;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.config.rev170206.NatserviceConfig;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.config.rev170206.NatserviceConfig.NatMode;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.NaptSwitches;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.ext.routers.Routers;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.napt.switches.RouterToNaptSwitch;
37 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
38 import org.opendaylight.yangtools.yang.common.Uint32;
39 import org.opendaylight.yangtools.yang.common.Uint64;
40 import org.slf4j.Logger;
41 import org.slf4j.LoggerFactory;
44 * CentralizedSwitchChangeListener detect changes in switch:router mapping and
45 * update flows accordingly.
48 public class SnatCentralizedSwitchChangeListener
49 extends AbstractAsyncDataTreeChangeListener<RouterToNaptSwitch> {
51 private static final Logger LOG = LoggerFactory.getLogger(SnatCentralizedSwitchChangeListener.class);
52 private final DataBroker dataBroker;
53 private final ManagedNewTransactionRunner txRunner;
54 private final SnatServiceManager snatServiceManger;
55 private final NatDataUtil natDataUtil;
56 private final DataTreeEventCallbackRegistrar eventCallbacks;
57 private final NatMode natMode;
60 public SnatCentralizedSwitchChangeListener(final DataBroker dataBroker,
61 final SnatServiceManager snatServiceManger, NatDataUtil natDataUtil, final NatserviceConfig config,
62 final DataTreeEventCallbackRegistrar dataTreeEventCallbackRegistrar) {
63 super(dataBroker, LogicalDatastoreType.CONFIGURATION, InstanceIdentifier.create(NaptSwitches.class)
64 .child(RouterToNaptSwitch.class),
65 Executors.newListeningSingleThreadExecutor("SnatCentralizedSwitchChangeListener", LOG));
66 this.dataBroker = dataBroker;
67 this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
68 this.snatServiceManger = snatServiceManger;
69 this.natDataUtil = natDataUtil;
70 this.eventCallbacks = dataTreeEventCallbackRegistrar;
72 this.natMode = config.getNatMode();
74 LOG.info("NAT mode configured default as Controller as config is missing");
75 this.natMode = NatMode.Controller;
80 LOG.info("{} init", getClass().getSimpleName());
87 Executors.shutdownAndAwaitTermination(getExecutorService());
91 public void remove(InstanceIdentifier<RouterToNaptSwitch> key, RouterToNaptSwitch routerToNaptSwitch) {
92 LOG.debug("Deleting {}", routerToNaptSwitch);
93 if (natMode == NatMode.Controller) {
94 LOG.info("Do Not Processing this remove() event for (routerName:designatedDpn) {}:{}"
95 + "configured in Controller Mode",
96 routerToNaptSwitch.getRouterName(), routerToNaptSwitch.getPrimarySwitchId());
99 Uint64 primarySwitchId = routerToNaptSwitch.getPrimarySwitchId();
100 Routers router = natDataUtil.getRouter(routerToNaptSwitch.getRouterName());
101 if (router != null) {
102 LoggingFutures.addErrorLogging(txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION,
103 confTx -> snatServiceManger.notify(confTx, router, null, primarySwitchId, null,
104 SnatServiceManager.Action.SNAT_ALL_SWITCH_DISBL)), LOG,
105 "error handling SNAT centralized switch removal");
106 natDataUtil.removeFromRouterMap(router);
111 public void update(InstanceIdentifier<RouterToNaptSwitch> key, RouterToNaptSwitch origRouterToNaptSwitch,
112 RouterToNaptSwitch updatedRouterToNaptSwitch) {
113 LOG.debug("Updating old {} new {}", origRouterToNaptSwitch, updatedRouterToNaptSwitch);
114 if (natMode == NatMode.Controller) {
115 LOG.info("Do Not Processing this update() event for (routerName:designatedDpn) {}:{}"
116 + "configured in Controller Mode",
117 updatedRouterToNaptSwitch.getRouterName(), updatedRouterToNaptSwitch.getPrimarySwitchId());
120 Uint64 origPrimarySwitchId = origRouterToNaptSwitch.getPrimarySwitchId();
121 Uint64 updatedPrimarySwitchId = updatedRouterToNaptSwitch.getPrimarySwitchId();
122 LoggingFutures.addErrorLogging(txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION, confTx -> {
123 Routers origRouter = NatUtil.getRoutersFromConfigDS(confTx, origRouterToNaptSwitch.getRouterName());
124 Routers updatedRouter = NatUtil.getRoutersFromConfigDS(confTx, updatedRouterToNaptSwitch.getRouterName());
125 if (!Objects.equals(origPrimarySwitchId, updatedPrimarySwitchId)) {
126 if (origRouter != null) {
127 snatServiceManger.notify(confTx, origRouter, null, origPrimarySwitchId, null,
128 SnatServiceManager.Action.CNT_ROUTER_ALL_SWITCH_DISBL);
129 if (origRouterToNaptSwitch.isEnableSnat()) {
130 snatServiceManger.notify(confTx, origRouter, null, origPrimarySwitchId, null,
131 SnatServiceManager.Action.SNAT_ALL_SWITCH_DISBL);
133 natDataUtil.removeFromRouterMap(origRouter);
135 if (updatedRouter != null) {
136 natDataUtil.updateRouterMap(updatedRouter);
137 snatServiceManger.notify(confTx, updatedRouter, null, updatedPrimarySwitchId, null,
138 SnatServiceManager.Action.CNT_ROUTER_ALL_SWITCH_ENBL);
139 if (updatedRouterToNaptSwitch.isEnableSnat()) {
140 snatServiceManger.notify(confTx, updatedRouter, null, updatedPrimarySwitchId, null,
141 SnatServiceManager.Action.SNAT_ALL_SWITCH_ENBL);
145 boolean origIsSnatEnabled = false;
146 boolean updatedIsSnatEnabled = false;
147 if (origRouterToNaptSwitch.isEnableSnat() != null) {
148 origIsSnatEnabled = origRouterToNaptSwitch.isEnableSnat();
150 if (updatedRouterToNaptSwitch.isEnableSnat() != null) {
151 updatedIsSnatEnabled = updatedRouterToNaptSwitch.isEnableSnat();
153 if (origIsSnatEnabled != updatedIsSnatEnabled) {
154 if (updatedRouterToNaptSwitch.isEnableSnat()) {
155 snatServiceManger.notify(confTx, updatedRouter, null, updatedPrimarySwitchId, null,
156 SnatServiceManager.Action.SNAT_ALL_SWITCH_ENBL);
158 snatServiceManger.notify(confTx, origRouter, null, origPrimarySwitchId, null,
159 SnatServiceManager.Action.SNAT_ALL_SWITCH_DISBL);
163 }), LOG, "Error handling SNAT centralized switch update");
167 public void add(InstanceIdentifier<RouterToNaptSwitch> key, RouterToNaptSwitch routerToNaptSwitch) {
168 LOG.debug("Adding {}", routerToNaptSwitch);
169 if (natMode == NatMode.Controller) {
170 LOG.info("Do Not Processing this add() event for (routerName:designatedDpn) {}:{}"
171 + "configured in Controller Mode",
172 routerToNaptSwitch.getRouterName(), routerToNaptSwitch.getPrimarySwitchId());
175 Uint64 primarySwitchId = routerToNaptSwitch.getPrimarySwitchId();
176 String routerName = routerToNaptSwitch.getRouterName();
177 Routers router = NatUtil.getRoutersFromConfigDS(dataBroker, routerName);
178 final boolean isEnableSnat;
179 if (routerToNaptSwitch.isEnableSnat() != null) {
180 isEnableSnat = routerToNaptSwitch.isEnableSnat();
182 isEnableSnat = false;
184 Uint32 vpnId = NatUtil.getVpnId(dataBroker, routerName);
185 if (vpnId == NatConstants.INVALID_ID) {
186 LOG.warn("VpnId not unavailable for router {} yet", routerName);
187 eventCallbacks.onAddOrUpdate(LogicalDatastoreType.CONFIGURATION,
188 NatUtil.getVpnInstanceToVpnIdIdentifier(routerName), (unused, newVpnId) -> {
189 LoggingFutures.addErrorLogging(
190 txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION,
191 innerConfTx -> handleAdd(innerConfTx, routerName, router, primarySwitchId,
193 "Error handling router addition");
194 return DataTreeEventCallbackRegistrar.NextAction.UNREGISTER;
195 }, Duration.ofSeconds(5), iid -> LOG.error("VpnId not found for router {}", routerName));
198 LoggingFutures.addErrorLogging(
199 txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION,
200 confTx -> handleAdd(confTx, routerName, router, primarySwitchId,
201 isEnableSnat)), LOG, "Error handling router addition");
204 private void handleAdd(TypedReadWriteTransaction<Datastore.Configuration> confTx,
205 String routerName, Routers router, Uint64 primarySwitchId, boolean isSnatEnabled)
206 throws ExecutionException, InterruptedException {
207 if (router != null) {
208 natDataUtil.addtoRouterMap(router);
209 snatServiceManger.notify(confTx, router, null, primarySwitchId, null,
210 SnatServiceManager.Action.CNT_ROUTER_ALL_SWITCH_ENBL);
212 snatServiceManger.notify(confTx, router, null, primarySwitchId, null,
213 SnatServiceManager.Action.SNAT_ALL_SWITCH_ENBL);
216 LOG.error("Router {} not found for primarySwitch {}", routerName, primarySwitchId);