--- /dev/null
+/*
+ * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
+package org.opendaylight.controller.netconf.test.tool;
+
+import com.google.common.base.Charsets;
+import com.google.common.base.Function;
+import com.google.common.base.MoreObjects;
+import com.google.common.base.Optional;
+import com.google.common.collect.Collections2;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
+import com.google.common.collect.Sets;
+import com.google.common.io.CharStreams;
+import com.google.common.util.concurrent.CheckedFuture;
+import com.google.common.util.concurrent.Futures;
+import com.google.common.util.concurrent.ThreadFactoryBuilder;
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelFuture;
+import io.netty.channel.local.LocalAddress;
+import io.netty.channel.nio.NioEventLoopGroup;
+import io.netty.util.HashedWheelTimer;
+import java.io.Closeable;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.BindException;
+import java.net.Inet4Address;
+import java.net.InetSocketAddress;
+import java.net.URI;
+import java.net.UnknownHostException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.AbstractMap;
+import java.util.Collections;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.NavigableMap;
+import java.util.Set;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import org.antlr.v4.runtime.ParserRuleContext;
+import org.antlr.v4.runtime.tree.ParseTreeWalker;
+import org.apache.sshd.common.util.ThreadUtils;
+import org.apache.sshd.server.PasswordAuthenticator;
+import org.apache.sshd.server.keyprovider.PEMGeneratorHostKeyProvider;
+import org.apache.sshd.server.session.ServerSession;
+import org.opendaylight.controller.config.util.capability.Capability;
+import org.opendaylight.controller.netconf.api.monitoring.CapabilityListener;
+import org.opendaylight.controller.netconf.api.monitoring.NetconfMonitoringService;
+import org.opendaylight.controller.netconf.api.xml.XmlNetconfConstants;
+import org.opendaylight.controller.netconf.impl.NetconfServerDispatcherImpl;
+import org.opendaylight.controller.netconf.impl.NetconfServerSessionNegotiatorFactory;
+import org.opendaylight.controller.netconf.impl.SessionIdProvider;
+import org.opendaylight.controller.netconf.impl.osgi.AggregatedNetconfOperationServiceFactory;
+import org.opendaylight.controller.netconf.mapping.api.NetconfOperation;
+import org.opendaylight.controller.netconf.mapping.api.NetconfOperationService;
+import org.opendaylight.controller.netconf.mapping.api.NetconfOperationServiceFactory;
+import org.opendaylight.controller.netconf.monitoring.osgi.NetconfMonitoringActivator;
+import org.opendaylight.controller.netconf.monitoring.osgi.NetconfMonitoringOperationService;
+import org.opendaylight.controller.netconf.ssh.SshProxyServer;
+import org.opendaylight.controller.netconf.ssh.SshProxyServerConfiguration;
+import org.opendaylight.controller.netconf.ssh.SshProxyServerConfigurationBuilder;
+import org.opendaylight.controller.netconf.test.tool.rpc.DataList;
+import org.opendaylight.controller.netconf.test.tool.rpc.SimulatedCommit;
+import org.opendaylight.controller.netconf.test.tool.rpc.SimulatedCreateSubscription;
+import org.opendaylight.controller.netconf.test.tool.rpc.SimulatedEditConfig;
+import org.opendaylight.controller.netconf.test.tool.rpc.SimulatedGet;
+import org.opendaylight.controller.netconf.test.tool.rpc.SimulatedGetConfig;
+import org.opendaylight.controller.netconf.test.tool.rpc.SimulatedLock;
+import org.opendaylight.controller.netconf.test.tool.rpc.SimulatedUnLock;
+import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+import org.opendaylight.yangtools.yang.model.repo.api.SchemaSourceException;
+import org.opendaylight.yangtools.yang.model.repo.api.SchemaSourceRepresentation;
+import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
+import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
+import org.opendaylight.yangtools.yang.model.repo.spi.PotentialSchemaSource;
+import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceListener;
+import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceProvider;
+import org.opendaylight.yangtools.yang.model.repo.util.FilesystemSchemaSourceCache;
+import org.opendaylight.yangtools.yang.parser.builder.impl.BuilderUtils;
+import org.opendaylight.yangtools.yang.parser.builder.impl.ModuleBuilder;
+import org.opendaylight.yangtools.yang.parser.impl.YangParserListenerImpl;
+import org.opendaylight.yangtools.yang.parser.repo.SharedSchemaRepository;
+import org.opendaylight.yangtools.yang.parser.util.ASTSchemaSource;
+import org.opendaylight.yangtools.yang.parser.util.TextToASTTransformer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class NetconfDeviceSimulator implements Closeable {
+
+ private static final Logger LOG = LoggerFactory.getLogger(NetconfDeviceSimulator.class);
+
+ private final NioEventLoopGroup nettyThreadgroup;
+ private final HashedWheelTimer hashedWheelTimer;
+ private final List<Channel> devicesChannels = Lists.newArrayList();
+ private final List<SshProxyServer> sshWrappers = Lists.newArrayList();
+ private final ScheduledExecutorService minaTimerExecutor;
+ private final ExecutorService nioExecutor;
+
+ private boolean sendFakeSchema = false;
+
+ public NetconfDeviceSimulator() {
+ // TODO make pool size configurable
+ this(new NioEventLoopGroup(), new HashedWheelTimer(),
+ Executors.newScheduledThreadPool(8, new ThreadFactoryBuilder().setNameFormat("netconf-ssh-server-mina-timers-%d").build()),
+ ThreadUtils.newFixedThreadPool("netconf-ssh-server-nio-group", 8));
+ }
+
+ private NetconfDeviceSimulator(final NioEventLoopGroup eventExecutors, final HashedWheelTimer hashedWheelTimer, final ScheduledExecutorService minaTimerExecutor, final ExecutorService nioExecutor) {
+ this.nettyThreadgroup = eventExecutors;
+ this.hashedWheelTimer = hashedWheelTimer;
+ this.minaTimerExecutor = minaTimerExecutor;
+ this.nioExecutor = nioExecutor;
+ }
+
+ private NetconfServerDispatcherImpl createDispatcher(final Map<ModuleBuilder, String> moduleBuilders, final boolean exi, final int generateConfigsTimeout, final Optional<File> notificationsFile) {
+
+ final Set<Capability> capabilities = Sets.newHashSet(Collections2.transform(moduleBuilders.keySet(), new Function<ModuleBuilder, Capability>() {
+ @Override
+ public Capability apply(final ModuleBuilder input) {
+ if (sendFakeSchema) {
+ sendFakeSchema = false;
+ return new FakeModuleBuilderCapability(input, moduleBuilders.get(input));
+ } else {
+ return new ModuleBuilderCapability(input, moduleBuilders.get(input));
+ }
+ }
+ }));
+
+ final SessionIdProvider idProvider = new SessionIdProvider();
+
+ final AggregatedNetconfOperationServiceFactory aggregatedNetconfOperationServiceFactory = new AggregatedNetconfOperationServiceFactory();
+ final SimulatedOperationProvider simulatedOperationProvider = new SimulatedOperationProvider(idProvider, capabilities, notificationsFile);
+
+ final NetconfMonitoringService monitoringService1 = new DummyMonitoringService(capabilities);
+
+ final NetconfMonitoringActivator.NetconfMonitoringOperationServiceFactory monitoringService =
+ new NetconfMonitoringActivator.NetconfMonitoringOperationServiceFactory(
+ new NetconfMonitoringOperationService(monitoringService1));
+ aggregatedNetconfOperationServiceFactory.onAddNetconfOperationServiceFactory(simulatedOperationProvider);
+ aggregatedNetconfOperationServiceFactory.onAddNetconfOperationServiceFactory(monitoringService);
+
+ final Set<String> serverCapabilities = exi
+ ? NetconfServerSessionNegotiatorFactory.DEFAULT_BASE_CAPABILITIES
+ : Sets.newHashSet(XmlNetconfConstants.URN_IETF_PARAMS_NETCONF_BASE_1_0, XmlNetconfConstants.URN_IETF_PARAMS_NETCONF_BASE_1_1);
+
+ final NetconfServerSessionNegotiatorFactory serverNegotiatorFactory = new NetconfServerSessionNegotiatorFactory(
+ hashedWheelTimer, aggregatedNetconfOperationServiceFactory, idProvider, generateConfigsTimeout, monitoringService1, serverCapabilities);
+
+ final NetconfServerDispatcherImpl.ServerChannelInitializer serverChannelInitializer = new NetconfServerDispatcherImpl.ServerChannelInitializer(
+ serverNegotiatorFactory);
+ return new NetconfServerDispatcherImpl(serverChannelInitializer, nettyThreadgroup, nettyThreadgroup);
+ }
+
+ private Map<ModuleBuilder, String> toModuleBuilders(final Map<SourceIdentifier, Map.Entry<ASTSchemaSource, YangTextSchemaSource>> sources) {
+ final Map<SourceIdentifier, ParserRuleContext> asts = Maps.transformValues(sources, new Function<Map.Entry<ASTSchemaSource, YangTextSchemaSource>, ParserRuleContext>() {
+ @Override
+ public ParserRuleContext apply(final Map.Entry<ASTSchemaSource, YangTextSchemaSource> input) {
+ return input.getKey().getAST();
+ }
+ });
+ final Map<String, NavigableMap<Date, URI>> namespaceContext = BuilderUtils.createYangNamespaceContext(
+ asts.values(), Optional.<SchemaContext>absent());
+
+ final ParseTreeWalker walker = new ParseTreeWalker();
+ final Map<ModuleBuilder, String> sourceToBuilder = new HashMap<>();
+
+ for (final Map.Entry<SourceIdentifier, ParserRuleContext> entry : asts.entrySet()) {
+ final ModuleBuilder moduleBuilder = YangParserListenerImpl.create(namespaceContext, entry.getKey().getName(),
+ walker, entry.getValue()).getModuleBuilder();
+
+ try(InputStreamReader stream = new InputStreamReader(sources.get(entry.getKey()).getValue().openStream(), Charsets.UTF_8)) {
+ sourceToBuilder.put(moduleBuilder, CharStreams.toString(stream));
+ } catch (final IOException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ return sourceToBuilder;
+ }
+
+
+ public List<Integer> start(final Main.Params params) {
+ LOG.info("Starting {}, {} simulated devices starting on port {}", params.deviceCount, params.ssh ? "SSH" : "TCP", params.startingPort);
+
+ final Map<ModuleBuilder, String> moduleBuilders = parseSchemasToModuleBuilders(params);
+
+ final NetconfServerDispatcherImpl dispatcher = createDispatcher(moduleBuilders, params.exi, params.generateConfigsTimeout, Optional.fromNullable(params.notificationFile));
+
+ int currentPort = params.startingPort;
+
+ final List<Integer> openDevices = Lists.newArrayList();
+
+ // Generate key to temp folder
+ final PEMGeneratorHostKeyProvider keyPairProvider = getPemGeneratorHostKeyProvider();
+
+ for (int i = 0; i < params.deviceCount; i++) {
+ if (currentPort > 65535) {
+ LOG.warn("Port cannot be greater than 65535, stopping further attempts.");
+ break;
+ }
+ final InetSocketAddress address = getAddress(currentPort);
+
+ final ChannelFuture server;
+ if(params.ssh) {
+ final InetSocketAddress bindingAddress = InetSocketAddress.createUnresolved("0.0.0.0", currentPort);
+ final LocalAddress tcpLocalAddress = new LocalAddress(address.toString());
+
+ server = dispatcher.createLocalServer(tcpLocalAddress);
+ try {
+ final SshProxyServer sshServer = new SshProxyServer(minaTimerExecutor, nettyThreadgroup, nioExecutor);
+ sshServer.bind(getSshConfiguration(bindingAddress, tcpLocalAddress, keyPairProvider));
+ sshWrappers.add(sshServer);
+ } catch (final BindException e) {
+ LOG.warn("Cannot start simulated device on {}, port already in use. Skipping.", address);
+ // Close local server and continue
+ server.cancel(true);
+ if(server.isDone()) {
+ server.channel().close();
+ }
+ continue;
+ } catch (final IOException e) {
+ LOG.warn("Cannot start simulated device on {} due to IOException.", address, e);
+ break;
+ } finally {
+ currentPort++;
+ }
+
+ try {
+ server.get();
+ } catch (final InterruptedException e) {
+ throw new RuntimeException(e);
+ } catch (final ExecutionException e) {
+ LOG.warn("Cannot start ssh simulated device on {}, skipping", address, e);
+ continue;
+ }
+
+ LOG.debug("Simulated SSH device started on {}", address);
+
+ } else {
+ server = dispatcher.createServer(address);
+ currentPort++;
+
+ try {
+ server.get();
+ } catch (final InterruptedException e) {
+ throw new RuntimeException(e);
+ } catch (final ExecutionException e) {
+ LOG.warn("Cannot start tcp simulated device on {}, skipping", address, e);
+ continue;
+ }
+
+ LOG.debug("Simulated TCP device started on {}", address);
+ }
+
+ devicesChannels.add(server.channel());
+ openDevices.add(currentPort - 1);
+ }
+
+ if(openDevices.size() == params.deviceCount) {
+ LOG.info("All simulated devices started successfully from port {} to {}", params.startingPort, currentPort - 1);
+ } else if (openDevices.size() == 0) {
+ LOG.warn("No simulated devices started.");
+ } else {
+ LOG.warn("Not all simulated devices started successfully. Started devices ar on ports {}", openDevices);
+ }
+
+ return openDevices;
+ }
+
+ private SshProxyServerConfiguration getSshConfiguration(final InetSocketAddress bindingAddress, final LocalAddress tcpLocalAddress, final PEMGeneratorHostKeyProvider keyPairProvider) throws IOException {
+ return new SshProxyServerConfigurationBuilder()
+ .setBindingAddress(bindingAddress)
+ .setLocalAddress(tcpLocalAddress)
+ .setAuthenticator(new PasswordAuthenticator() {
+ @Override
+ public boolean authenticate(final String username, final String password, final ServerSession session) {
+ return true;
+ }
+ })
+ .setKeyPairProvider(keyPairProvider)
+ .setIdleTimeout(Integer.MAX_VALUE)
+ .createSshProxyServerConfiguration();
+ }
+
+ private PEMGeneratorHostKeyProvider getPemGeneratorHostKeyProvider() {
+ try {
+ final Path tempFile = Files.createTempFile("tempKeyNetconfTest", "suffix");
+ return new PEMGeneratorHostKeyProvider(tempFile.toAbsolutePath().toString());
+ } catch (final IOException e) {
+ LOG.error("Unable to generate PEM key", e);
+ throw new RuntimeException(e);
+ }
+ }
+
+ private Map<ModuleBuilder, String> parseSchemasToModuleBuilders(final Main.Params params) {
+ final SharedSchemaRepository consumer = new SharedSchemaRepository("netconf-simulator");
+ consumer.registerSchemaSourceListener(TextToASTTransformer.create(consumer, consumer));
+
+ final Set<SourceIdentifier> loadedSources = Sets.newHashSet();
+
+ consumer.registerSchemaSourceListener(new SchemaSourceListener() {
+ @Override
+ public void schemaSourceEncountered(final SchemaSourceRepresentation schemaSourceRepresentation) {}
+
+ @Override
+ public void schemaSourceRegistered(final Iterable<PotentialSchemaSource<?>> potentialSchemaSources) {
+ for (final PotentialSchemaSource<?> potentialSchemaSource : potentialSchemaSources) {
+ loadedSources.add(potentialSchemaSource.getSourceIdentifier());
+ }
+ }
+
+ @Override
+ public void schemaSourceUnregistered(final PotentialSchemaSource<?> potentialSchemaSource) {}
+ });
+
+ if(params.schemasDir != null) {
+ final FilesystemSchemaSourceCache<YangTextSchemaSource> cache = new FilesystemSchemaSourceCache<>(consumer, YangTextSchemaSource.class, params.schemasDir);
+ consumer.registerSchemaSourceListener(cache);
+ }
+
+ addDefaultSchemas(consumer);
+
+ final Map<SourceIdentifier, Map.Entry<ASTSchemaSource, YangTextSchemaSource>> asts = Maps.newHashMap();
+ for (final SourceIdentifier loadedSource : loadedSources) {
+ try {
+ final CheckedFuture<ASTSchemaSource, SchemaSourceException> ast = consumer.getSchemaSource(loadedSource, ASTSchemaSource.class);
+ final CheckedFuture<YangTextSchemaSource, SchemaSourceException> text = consumer.getSchemaSource(loadedSource, YangTextSchemaSource.class);
+ asts.put(loadedSource, new AbstractMap.SimpleEntry<>(ast.get(), text.get()));
+ } catch (final InterruptedException e) {
+ throw new RuntimeException(e);
+ } catch (final ExecutionException e) {
+ throw new RuntimeException("Cannot parse schema context", e);
+ }
+ }
+ return toModuleBuilders(asts);
+ }
+
+ private void addDefaultSchemas(final SharedSchemaRepository consumer) {
+ SourceIdentifier sId = new SourceIdentifier("ietf-netconf-monitoring", "2010-10-04");
+ registerSource(consumer, "/META-INF/yang/ietf-netconf-monitoring.yang", sId);
+
+ sId = new SourceIdentifier("ietf-netconf-monitoring-extension", "2013-12-10");
+ registerSource(consumer, "/META-INF/yang/ietf-netconf-monitoring-extension.yang", sId);
+
+ sId = new SourceIdentifier("ietf-yang-types", "2010-09-24");
+ registerSource(consumer, "/META-INF/yang/ietf-yang-types.yang", sId);
+
+ sId = new SourceIdentifier("ietf-inet-types", "2010-09-24");
+ registerSource(consumer, "/META-INF/yang/ietf-inet-types.yang", sId);
+ }
+
+ private void registerSource(final SharedSchemaRepository consumer, final String resource, final SourceIdentifier sourceId) {
+ consumer.registerSchemaSource(new SchemaSourceProvider<SchemaSourceRepresentation>() {
+ @Override
+ public CheckedFuture<? extends SchemaSourceRepresentation, SchemaSourceException> getSource(final SourceIdentifier sourceIdentifier) {
+ return Futures.immediateCheckedFuture(new YangTextSchemaSource(sourceId) {
+ @Override
+ protected MoreObjects.ToStringHelper addToStringAttributes(final MoreObjects.ToStringHelper toStringHelper) {
+ return toStringHelper;
+ }
+
+ @Override
+ public InputStream openStream() throws IOException {
+ return getClass().getResourceAsStream(resource);
+ }
+ });
+ }
+ }, PotentialSchemaSource.create(sourceId, YangTextSchemaSource.class, PotentialSchemaSource.Costs.IMMEDIATE.getValue()));
+ }
+
+ private static InetSocketAddress getAddress(final int port) {
+ try {
+ // TODO make address configurable
+ return new InetSocketAddress(Inet4Address.getByName("0.0.0.0"), port);
+ } catch (final UnknownHostException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ @Override
+ public void close() {
+ for (final SshProxyServer sshWrapper : sshWrappers) {
+ sshWrapper.close();
+ }
+ for (final Channel deviceCh : devicesChannels) {
+ deviceCh.close();
+ }
+ nettyThreadgroup.shutdownGracefully();
+ minaTimerExecutor.shutdownNow();
+ nioExecutor.shutdownNow();
+ // close Everything
+ }
+
+ private static class SimulatedOperationProvider implements NetconfOperationServiceFactory {
+ private final Set<Capability> caps;
+ private final SimulatedOperationService simulatedOperationService;
+
+
+ public SimulatedOperationProvider(final SessionIdProvider idProvider, final Set<Capability> caps, final Optional<File> notificationsFile) {
+ this.caps = caps;
+ simulatedOperationService = new SimulatedOperationService(idProvider.getCurrentSessionId(), notificationsFile);
+ }
+
+ @Override
+ public Set<Capability> getCapabilities() {
+ return caps;
+ }
+
+ @Override
+ public AutoCloseable registerCapabilityListener(final CapabilityListener listener) {
+ listener.onCapabilitiesChanged(caps, Collections.<Capability>emptySet());
+ return new AutoCloseable() {
+ @Override
+ public void close() throws Exception {}
+ };
+ }
+
+ @Override
+ public NetconfOperationService createService(final String netconfSessionIdForReporting) {
+ return simulatedOperationService;
+ }
+
+ static class SimulatedOperationService implements NetconfOperationService {
+ private final long currentSessionId;
+ private final Optional<File> notificationsFile;
+
+ public SimulatedOperationService(final long currentSessionId, final Optional<File> notificationsFile) {
+ this.currentSessionId = currentSessionId;
+ this.notificationsFile = notificationsFile;
+ }
+
+ @Override
+ public Set<NetconfOperation> getNetconfOperations() {
+ final DataList storage = new DataList();
+ final SimulatedGet sGet = new SimulatedGet(String.valueOf(currentSessionId), storage);
+ final SimulatedEditConfig sEditConfig = new SimulatedEditConfig(String.valueOf(currentSessionId), storage);
+ final SimulatedGetConfig sGetConfig = new SimulatedGetConfig(String.valueOf(currentSessionId), storage);
+ final SimulatedCommit sCommit = new SimulatedCommit(String.valueOf(currentSessionId));
+ final SimulatedLock sLock = new SimulatedLock(String.valueOf(currentSessionId));
+ final SimulatedUnLock sUnlock = new SimulatedUnLock(String.valueOf(currentSessionId));
+ final SimulatedCreateSubscription sCreateSubs = new SimulatedCreateSubscription(String.valueOf(currentSessionId), notificationsFile);
+ return Sets.<NetconfOperation>newHashSet(sGet, sGetConfig, sEditConfig, sCommit, sLock, sUnlock, sCreateSubs);
+ }
+
+ @Override
+ public void close() {
+ }
+
+ }
+ }
+
+}
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