2 * Copyright (c) 2016 Cisco Systems, 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.netconf.topology.singleton.impl;
10 import static com.google.common.base.Preconditions.checkState;
11 import static java.util.Objects.requireNonNull;
13 import com.google.common.annotations.VisibleForTesting;
14 import com.google.common.util.concurrent.FutureCallback;
15 import com.google.common.util.concurrent.Futures;
16 import com.google.common.util.concurrent.ListenableFuture;
17 import com.google.common.util.concurrent.MoreExecutors;
18 import java.math.BigDecimal;
19 import java.net.InetSocketAddress;
21 import java.util.ArrayList;
22 import java.util.List;
24 import java.util.Optional;
25 import org.opendaylight.aaa.encrypt.AAAEncryptionService;
26 import org.opendaylight.netconf.api.NetconfMessage;
27 import org.opendaylight.netconf.client.NetconfClientSessionListener;
28 import org.opendaylight.netconf.client.conf.NetconfClientConfiguration;
29 import org.opendaylight.netconf.client.conf.NetconfReconnectingClientConfiguration;
30 import org.opendaylight.netconf.client.conf.NetconfReconnectingClientConfigurationBuilder;
31 import org.opendaylight.netconf.nettyutil.ReconnectStrategyFactory;
32 import org.opendaylight.netconf.nettyutil.TimedReconnectStrategyFactory;
33 import org.opendaylight.netconf.nettyutil.handler.ssh.authentication.AuthenticationHandler;
34 import org.opendaylight.netconf.nettyutil.handler.ssh.authentication.LoginPasswordHandler;
35 import org.opendaylight.netconf.sal.connect.api.DeviceActionFactory;
36 import org.opendaylight.netconf.sal.connect.api.RemoteDevice;
37 import org.opendaylight.netconf.sal.connect.api.RemoteDeviceHandler;
38 import org.opendaylight.netconf.sal.connect.netconf.LibraryModulesSchemas;
39 import org.opendaylight.netconf.sal.connect.netconf.NetconfDevice;
40 import org.opendaylight.netconf.sal.connect.netconf.NetconfDeviceBuilder;
41 import org.opendaylight.netconf.sal.connect.netconf.SchemalessNetconfDevice;
42 import org.opendaylight.netconf.sal.connect.netconf.auth.DatastoreBackedPublicKeyAuth;
43 import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfDeviceCapabilities;
44 import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfDeviceCommunicator;
45 import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfSessionPreferences;
46 import org.opendaylight.netconf.sal.connect.netconf.listener.UserPreferences;
47 import org.opendaylight.netconf.sal.connect.netconf.sal.KeepaliveSalFacade;
48 import org.opendaylight.netconf.sal.connect.netconf.sal.NetconfKeystoreAdapter;
49 import org.opendaylight.netconf.sal.connect.netconf.schema.YangLibrarySchemaYangSourceProvider;
50 import org.opendaylight.netconf.sal.connect.util.RemoteDeviceId;
51 import org.opendaylight.netconf.sal.connect.util.SslHandlerFactoryImpl;
52 import org.opendaylight.netconf.topology.singleton.api.RemoteDeviceConnector;
53 import org.opendaylight.netconf.topology.singleton.impl.utils.NetconfTopologySetup;
54 import org.opendaylight.netconf.topology.singleton.impl.utils.NetconfTopologyUtils;
55 import org.opendaylight.netconf.topology.spi.NetconfConnectorDTO;
56 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Host;
57 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
58 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Uri;
59 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNode;
60 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.connection.parameters.OdlHelloMessageCapabilities;
61 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.connection.parameters.Protocol;
62 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.connection.status.available.capabilities.AvailableCapability.CapabilityOrigin;
63 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.Credentials;
64 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.credentials.KeyAuth;
65 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.credentials.LoginPw;
66 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.credentials.LoginPwUnencrypted;
67 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.credentials.key.auth.KeyBased;
68 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.credentials.login.pw.LoginPassword;
69 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.credentials.login.pw.unencrypted.LoginPasswordUnencrypted;
70 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
71 import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
72 import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
73 import org.opendaylight.yangtools.yang.model.repo.spi.PotentialSchemaSource;
74 import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceRegistration;
75 import org.slf4j.Logger;
76 import org.slf4j.LoggerFactory;
78 public class RemoteDeviceConnectorImpl implements RemoteDeviceConnector {
80 private static final Logger LOG = LoggerFactory.getLogger(RemoteDeviceConnectorImpl.class);
82 // Initializes default constant instances for the case when the default schema repository
83 // directory cache/schema is used.
85 private final NetconfTopologySetup netconfTopologyDeviceSetup;
86 private final RemoteDeviceId remoteDeviceId;
87 private final String privateKeyPath;
88 private final String privateKeyPassphrase;
89 private final AAAEncryptionService encryptionService;
90 private final NetconfKeystoreAdapter keystoreAdapter;
91 private final DeviceActionFactory deviceActionFactory;
93 // FIXME: this seems to be a builder-like transition between {start,stop}RemoteDeviceConnection. More documentation
94 // is needed, as to what the lifecycle is here.
95 private NetconfConnectorDTO deviceCommunicatorDTO;
97 public RemoteDeviceConnectorImpl(final NetconfTopologySetup netconfTopologyDeviceSetup,
98 final RemoteDeviceId remoteDeviceId, final DeviceActionFactory deviceActionFactory) {
99 this.netconfTopologyDeviceSetup = requireNonNull(netconfTopologyDeviceSetup);
100 this.remoteDeviceId = remoteDeviceId;
101 this.deviceActionFactory = requireNonNull(deviceActionFactory);
102 this.privateKeyPath = netconfTopologyDeviceSetup.getPrivateKeyPath();
103 this.privateKeyPassphrase = netconfTopologyDeviceSetup.getPrivateKeyPassphrase();
104 this.encryptionService = netconfTopologyDeviceSetup.getEncryptionService();
105 keystoreAdapter = new NetconfKeystoreAdapter(netconfTopologyDeviceSetup.getDataBroker());
109 public void startRemoteDeviceConnection(final RemoteDeviceHandler<NetconfSessionPreferences> deviceHandler) {
111 final NetconfNode netconfNode = netconfTopologyDeviceSetup.getNode().augmentation(NetconfNode.class);
112 final NodeId nodeId = netconfTopologyDeviceSetup.getNode().getNodeId();
113 requireNonNull(netconfNode.getHost());
114 requireNonNull(netconfNode.getPort());
116 this.deviceCommunicatorDTO = createDeviceCommunicator(nodeId, netconfNode, deviceHandler);
117 final NetconfDeviceCommunicator deviceCommunicator = deviceCommunicatorDTO.getCommunicator();
118 final NetconfClientSessionListener netconfClientSessionListener = deviceCommunicatorDTO.getSessionListener();
119 final NetconfReconnectingClientConfiguration clientConfig =
120 getClientConfig(netconfClientSessionListener, netconfNode);
121 final ListenableFuture<NetconfDeviceCapabilities> future = deviceCommunicator
122 .initializeRemoteConnection(netconfTopologyDeviceSetup.getNetconfClientDispatcher(), clientConfig);
124 Futures.addCallback(future, new FutureCallback<NetconfDeviceCapabilities>() {
126 public void onSuccess(final NetconfDeviceCapabilities result) {
127 LOG.debug("{}: Connector started successfully", remoteDeviceId);
131 public void onFailure(final Throwable throwable) {
132 LOG.error("{}: Connector failed", remoteDeviceId, throwable);
134 }, MoreExecutors.directExecutor());
137 @SuppressWarnings("checkstyle:IllegalCatch")
139 public void stopRemoteDeviceConnection() {
140 if (deviceCommunicatorDTO != null) {
142 deviceCommunicatorDTO.close();
143 } catch (final Exception e) {
144 LOG.error("{}: Error at closing device communicator.", remoteDeviceId, e);
150 NetconfConnectorDTO createDeviceCommunicator(final NodeId nodeId, final NetconfNode node,
151 final RemoteDeviceHandler<NetconfSessionPreferences> deviceHandler) {
152 //setup default values since default value is not supported in mdsal
153 final long defaultRequestTimeoutMillis = node.getDefaultRequestTimeoutMillis() == null
154 ? NetconfTopologyUtils.DEFAULT_REQUEST_TIMEOUT_MILLIS : node.getDefaultRequestTimeoutMillis().toJava();
155 final long keepaliveDelay = node.getKeepaliveDelay() == null
156 ? NetconfTopologyUtils.DEFAULT_KEEPALIVE_DELAY : node.getKeepaliveDelay().toJava();
157 final boolean reconnectOnChangedSchema = node.getReconnectOnChangedSchema() == null
158 ? NetconfTopologyUtils.DEFAULT_RECONNECT_ON_CHANGED_SCHEMA : node.getReconnectOnChangedSchema();
160 RemoteDeviceHandler<NetconfSessionPreferences> salFacade = requireNonNull(deviceHandler);
161 if (keepaliveDelay > 0) {
162 LOG.info("{}: Adding keepalive facade.", remoteDeviceId);
163 salFacade = new KeepaliveSalFacade(remoteDeviceId, salFacade,
164 netconfTopologyDeviceSetup.getKeepaliveExecutor(), keepaliveDelay,
165 defaultRequestTimeoutMillis);
168 final NetconfDevice.SchemaResourcesDTO schemaResourcesDTO = netconfTopologyDeviceSetup.getSchemaResourcesDTO();
170 // pre register yang library sources as fallback schemas to schema registry
171 final List<SchemaSourceRegistration<?>> registeredYangLibSources = new ArrayList<>();
172 if (node.getYangLibrary() != null) {
173 final String yangLibURL = node.getYangLibrary().getYangLibraryUrl().getValue();
174 final String yangLibUsername = node.getYangLibrary().getUsername();
175 final String yangLigPassword = node.getYangLibrary().getPassword();
177 final LibraryModulesSchemas libraryModulesSchemas;
178 if (yangLibURL != null) {
179 if (yangLibUsername != null && yangLigPassword != null) {
180 libraryModulesSchemas = LibraryModulesSchemas.create(yangLibURL, yangLibUsername, yangLigPassword);
182 libraryModulesSchemas = LibraryModulesSchemas.create(yangLibURL);
185 for (final Map.Entry<SourceIdentifier, URL> sourceIdentifierURLEntry :
186 libraryModulesSchemas.getAvailableModels().entrySet()) {
187 registeredYangLibSources
188 .add(schemaResourcesDTO.getSchemaRegistry().registerSchemaSource(
189 new YangLibrarySchemaYangSourceProvider(remoteDeviceId,
190 libraryModulesSchemas.getAvailableModels()),
191 PotentialSchemaSource
192 .create(sourceIdentifierURLEntry.getKey(), YangTextSchemaSource.class,
193 PotentialSchemaSource.Costs.REMOTE_IO.getValue())));
198 final RemoteDevice<NetconfSessionPreferences, NetconfMessage, NetconfDeviceCommunicator> device;
199 if (node.getSchemaless()) {
200 device = new SchemalessNetconfDevice(netconfTopologyDeviceSetup.getBaseSchemas(), remoteDeviceId,
203 device = new NetconfDeviceBuilder()
204 .setReconnectOnSchemasChange(reconnectOnChangedSchema)
205 .setSchemaResourcesDTO(schemaResourcesDTO)
206 .setGlobalProcessingExecutor(netconfTopologyDeviceSetup.getProcessingExecutor())
207 .setBaseSchemas(netconfTopologyDeviceSetup.getBaseSchemas())
208 .setId(remoteDeviceId)
209 .setDeviceActionFactory(deviceActionFactory)
210 .setSalFacade(salFacade)
214 final Optional<NetconfSessionPreferences> userCapabilities = getUserCapabilities(node);
215 final int rpcMessageLimit =
216 node.getConcurrentRpcLimit() == null
217 ? NetconfTopologyUtils.DEFAULT_CONCURRENT_RPC_LIMIT : node.getConcurrentRpcLimit().toJava();
219 if (rpcMessageLimit < 1) {
220 LOG.info("{}: Concurrent rpc limit is smaller than 1, no limit will be enforced.", remoteDeviceId);
223 NetconfDeviceCommunicator netconfDeviceCommunicator = userCapabilities.isPresent()
224 ? new NetconfDeviceCommunicator(remoteDeviceId, device, new UserPreferences(userCapabilities.get(),
225 node.getYangModuleCapabilities() == null ? false : node.getYangModuleCapabilities().getOverride(),
226 node.getNonModuleCapabilities() == null ? false : node.getNonModuleCapabilities().getOverride()),
228 : new NetconfDeviceCommunicator(remoteDeviceId, device, rpcMessageLimit);
230 if (salFacade instanceof KeepaliveSalFacade) {
231 ((KeepaliveSalFacade)salFacade).setListener(netconfDeviceCommunicator);
233 return new NetconfConnectorDTO(netconfDeviceCommunicator, salFacade, registeredYangLibSources);
236 private static Optional<NetconfSessionPreferences> getUserCapabilities(final NetconfNode node) {
237 if (node.getYangModuleCapabilities() == null && node.getNonModuleCapabilities() == null) {
238 return Optional.empty();
240 final List<String> capabilities = new ArrayList<>();
242 if (node.getYangModuleCapabilities() != null) {
243 capabilities.addAll(node.getYangModuleCapabilities().getCapability());
246 //non-module capabilities should not exist in yang module capabilities
247 final NetconfSessionPreferences netconfSessionPreferences = NetconfSessionPreferences.fromStrings(capabilities);
248 checkState(netconfSessionPreferences.getNonModuleCaps().isEmpty(),
249 "List yang-module-capabilities/capability should contain only module based capabilities. "
250 + "Non-module capabilities used: " + netconfSessionPreferences.getNonModuleCaps());
252 if (node.getNonModuleCapabilities() != null) {
253 capabilities.addAll(node.getNonModuleCapabilities().getCapability());
256 return Optional.of(NetconfSessionPreferences.fromStrings(capabilities, CapabilityOrigin.UserDefined));
259 //TODO: duplicate code
260 private static InetSocketAddress getSocketAddress(final Host host, final int port) {
261 if (host.getDomainName() != null) {
262 return new InetSocketAddress(host.getDomainName().getValue(), port);
264 final IpAddress ipAddress = host.getIpAddress();
265 final String ip = ipAddress.getIpv4Address() != null ? ipAddress.getIpv4Address().getValue() :
266 ipAddress.getIpv6Address().getValue();
267 return new InetSocketAddress(ip, port);
272 NetconfReconnectingClientConfiguration getClientConfig(final NetconfClientSessionListener listener,
273 final NetconfNode node) {
275 //setup default values since default value is not supported in mdsal
276 final long clientConnectionTimeoutMillis = node.getConnectionTimeoutMillis() == null
277 ? NetconfTopologyUtils.DEFAULT_CONNECTION_TIMEOUT_MILLIS : node.getConnectionTimeoutMillis().toJava();
278 final long maxConnectionAttempts = node.getMaxConnectionAttempts() == null
279 ? NetconfTopologyUtils.DEFAULT_MAX_CONNECTION_ATTEMPTS : node.getMaxConnectionAttempts().toJava();
280 final int betweenAttemptsTimeoutMillis = node.getBetweenAttemptsTimeoutMillis() == null
281 ? NetconfTopologyUtils.DEFAULT_BETWEEN_ATTEMPTS_TIMEOUT_MILLIS
282 : node.getBetweenAttemptsTimeoutMillis().toJava();
283 final boolean isTcpOnly = node.getTcpOnly() == null
284 ? NetconfTopologyUtils.DEFAULT_IS_TCP_ONLY : node.getTcpOnly();
285 final BigDecimal sleepFactor = node.getSleepFactor() == null
286 ? NetconfTopologyUtils.DEFAULT_SLEEP_FACTOR : node.getSleepFactor();
288 final InetSocketAddress socketAddress = getSocketAddress(node.getHost(), node.getPort().getValue().toJava());
290 final ReconnectStrategyFactory sf =
291 new TimedReconnectStrategyFactory(netconfTopologyDeviceSetup.getEventExecutor(), maxConnectionAttempts,
292 betweenAttemptsTimeoutMillis, sleepFactor);
295 final NetconfReconnectingClientConfigurationBuilder reconnectingClientConfigurationBuilder;
296 final Protocol protocol = node.getProtocol();
298 reconnectingClientConfigurationBuilder = NetconfReconnectingClientConfigurationBuilder.create()
299 .withProtocol(NetconfClientConfiguration.NetconfClientProtocol.TCP)
300 .withAuthHandler(getHandlerFromCredentials(node.getCredentials()));
301 } else if (protocol == null || protocol.getName() == Protocol.Name.SSH) {
302 reconnectingClientConfigurationBuilder = NetconfReconnectingClientConfigurationBuilder.create()
303 .withProtocol(NetconfClientConfiguration.NetconfClientProtocol.SSH)
304 .withAuthHandler(getHandlerFromCredentials(node.getCredentials()));
305 } else if (protocol.getName() == Protocol.Name.TLS) {
306 reconnectingClientConfigurationBuilder = NetconfReconnectingClientConfigurationBuilder.create()
307 .withSslHandlerFactory(new SslHandlerFactoryImpl(keystoreAdapter, protocol.getSpecification()))
308 .withProtocol(NetconfClientConfiguration.NetconfClientProtocol.TLS);
310 throw new IllegalStateException("Unsupported protocol type: " + protocol.getName());
313 final List<Uri> odlHelloCapabilities = getOdlHelloCapabilities(node);
314 if (odlHelloCapabilities != null) {
315 reconnectingClientConfigurationBuilder.withOdlHelloCapabilities(odlHelloCapabilities);
318 return reconnectingClientConfigurationBuilder
319 .withAddress(socketAddress)
320 .withConnectionTimeoutMillis(clientConnectionTimeoutMillis)
321 .withReconnectStrategy(sf.createReconnectStrategy())
322 .withConnectStrategyFactory(sf)
323 .withSessionListener(listener)
327 private static List<Uri> getOdlHelloCapabilities(final NetconfNode node) {
328 final OdlHelloMessageCapabilities helloCapabilities = node.getOdlHelloMessageCapabilities();
329 return helloCapabilities != null ? helloCapabilities.getCapability() : null;
332 private AuthenticationHandler getHandlerFromCredentials(final Credentials credentials) {
333 if (credentials instanceof org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology
334 .rev150114.netconf.node.credentials.credentials.LoginPassword) {
335 final org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology
336 .rev150114.netconf.node.credentials.credentials.LoginPassword loginPassword
337 = (org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology
338 .rev150114.netconf.node.credentials.credentials.LoginPassword) credentials;
339 return new LoginPasswordHandler(loginPassword.getUsername(), loginPassword.getPassword());
341 if (credentials instanceof LoginPwUnencrypted) {
342 final LoginPasswordUnencrypted loginPassword =
343 ((LoginPwUnencrypted) credentials).getLoginPasswordUnencrypted();
344 return new LoginPasswordHandler(loginPassword.getUsername(), loginPassword.getPassword());
346 if (credentials instanceof LoginPw) {
347 final LoginPassword loginPassword = ((LoginPw) credentials).getLoginPassword();
348 return new LoginPasswordHandler(loginPassword.getUsername(),
349 encryptionService.decrypt(loginPassword.getPassword()));
351 if (credentials instanceof KeyAuth) {
352 final KeyBased keyPair = ((KeyAuth) credentials).getKeyBased();
353 return new DatastoreBackedPublicKeyAuth(keyPair.getUsername(), keyPair.getKeyId(),
354 keystoreAdapter, encryptionService);
356 throw new IllegalStateException("Unsupported credential type: " + credentials.getClass());