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Posted to dev@mina.apache.org by "Guillermo Grandes (Jira)" <ji...@apache.org> on 2020/07/13 21:20:00 UTC
[jira] [Comment Edited] (SSHD-1033) Unable to use
DynamicPortForwarding + LocalPortForwarding
[ https://issues.apache.org/jira/browse/SSHD-1033?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17156921#comment-17156921 ]
Guillermo Grandes edited comment on SSHD-1033 at 7/13/20, 9:19 PM:
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My first impression is that the problem is in org.apache.sshd.common.forward.DefaultForwardingFilter.doBind(); one acceptor for 2 posible factory? (staticIoHandlerFactory/socksProxyIoHandlerFactory)
{code:java}
if (acceptor == null) {
Session session = getSession();
FactoryManager manager = Objects.requireNonNull(session.getFactoryManager(), "No factory manager");
IoServiceFactory factory = Objects.requireNonNull(manager.getIoServiceFactory(), "No I/O service factory");
IoHandler handler = handlerFactory.create();
acceptor = factory.createAcceptor(handler); // FIXME: only 1 global/instance acceptor??
}
{code}
was (Author: technobcn):
My first impression is that the problem is in org.apache.sshd.common.forward.DefaultForwardingFilter.doBind(); one acceptator for 2 posible factory? (staticIoHandlerFactory/socksProxyIoHandlerFactory)
{code:java}
if (acceptor == null) {
Session session = getSession();
FactoryManager manager = Objects.requireNonNull(session.getFactoryManager(), "No factory manager");
IoServiceFactory factory = Objects.requireNonNull(manager.getIoServiceFactory(), "No I/O service factory");
IoHandler handler = handlerFactory.create();
acceptor = factory.createAcceptor(handler); // FIXME: only 1 global/instance acceptator??
}
{code}
> Unable to use DynamicPortForwarding + LocalPortForwarding
> ---------------------------------------------------------
>
> Key: SSHD-1033
> URL: https://issues.apache.org/jira/browse/SSHD-1033
> Project: MINA SSHD
> Issue Type: Bug
> Affects Versions: 2.5.1
> Reporter: Guillermo Grandes
> Priority: Minor
>
> This is the error running LocalForwarder + DynamicForwarder:
> {code:none}
> [sshd-SshClient[457e2f02]-nio2-thread-6] WARN org.apache.sshd.common.forward.DefaultForwardingFilter - sessionCreated(Nio2Session[local=/127.0.0.1:8000, remote=/127.0.0.1:57657])[local=/127.0.0.1:8000, remote=null] cannot locate original local entry for accepted=/127.0.0.1:8000
> [sshd-SshClient[457e2f02]-nio2-thread-2] WARN org.apache.sshd.client.channel.ClientChannelPendingMessagesQueue - operationComplete(ClientChannelPendingMessagesQueue[channel=TcpipClientChannel[id=1, recipient=-1]-ClientSessionImpl[testuser@/192.168.x.x:22], open=false]) SshChannelOpenException[open failed] signaled
> [sshd-SshClient[457e2f02]-nio2-thread-2] WARN org.apache.sshd.common.forward.DefaultForwardingFilter - Failed (SshChannelOpenException) to open channel for session=Nio2Session[local=/127.0.0.1:8000, remote=/127.0.0.1:57657]: open failed
> {code}
> This is the code to reproduce.
> * When testLocal = true, testDynamic = true; dynamic fail.
> * if the order of test are inverted, fail the local instead of dynamic.
> * if one test is false, the other works well.
> {code:java}
> import java.io.BufferedReader;
> import java.io.IOException;
> import java.io.InputStreamReader;
> import java.net.HttpURLConnection;
> import java.net.InetSocketAddress;
> import java.net.Proxy;
> import java.net.URL;
> import org.apache.sshd.client.SshClient;
> import org.apache.sshd.client.future.ConnectFuture;
> import org.apache.sshd.client.keyverifier.AcceptAllServerKeyVerifier;
> import org.apache.sshd.client.session.ClientSession;
> import org.apache.sshd.client.session.forward.DynamicPortForwardingTracker;
> import org.apache.sshd.client.session.forward.ExplicitPortForwardingTracker;
> import org.apache.sshd.common.util.net.SshdSocketAddress;
> public class SSHClient {
> public static void test(final String username, final String password, final String host, final int port)
> throws IOException {
> boolean testLocal = true, testDynamic = true;
> try (SshClient client = SshClient.setUpDefaultClient()) {
> client.setServerKeyVerifier(AcceptAllServerKeyVerifier.INSTANCE);
> client.start();
> try {
> ConnectFuture connect = client.connect(username, host, port);
> connect.await(10000);
> ClientSession session = connect.getClientSession();
> session.addPasswordIdentity(password);
> session.auth().verify(10000);
> if (testLocal) {
> System.out.println("================== Local ==================");
> ExplicitPortForwardingTracker localTracker = session.createLocalPortForwardingTracker(
> new SshdSocketAddress("localhost", 8082),
> new SshdSocketAddress("test.javastack.org", 80));
> sleep(1000);
> System.out.println("LocalPortForwarding: " //
> + localTracker.getLocalAddress() + " -> " //
> + localTracker.getRemoteAddress());
> SshdSocketAddress localSocketAddress = localTracker.getLocalAddress();
> if (localSocketAddress != null) {
> Proxy proxy = new Proxy(Proxy.Type.HTTP,
> new InetSocketAddress(localSocketAddress.getHostName(), //
> localSocketAddress.getPort()));
> testRemoteURL(proxy);
> }
> }
> if (testDynamic) {
> System.out.println("================== Dynamic ==================");
> DynamicPortForwardingTracker dynamicTracker = session
> .createDynamicPortForwardingTracker(new SshdSocketAddress("localhost", 8000));
> sleep(1000);
> System.out.println("DynamicPortForwarding: " //
> + dynamicTracker.getLocalAddress());
> SshdSocketAddress dynamicSocketAddress = dynamicTracker.getLocalAddress();
> if (dynamicSocketAddress != null) {
> Proxy proxy = new Proxy(Proxy.Type.SOCKS,
> new InetSocketAddress(dynamicSocketAddress.getHostName(), //
> dynamicSocketAddress.getPort()));
> testRemoteURL(proxy);
> }
> }
> // @see org.apache.sshd.common.forward.DefaultForwardingFilter#sessionCreated
> sleep(1000);
> } finally {
> client.stop();
> }
> }
> }
> private static final void sleep(final long t) {
> try {
> Thread.sleep(t);
> } catch (Exception ign) {
> }
> }
> private static final void testRemoteURL(final Proxy proxy) throws IOException {
> HttpURLConnection connection = (HttpURLConnection) new URL("http://test.javastack.org/")
> .openConnection(proxy);
> System.out.println("Get URL: " + connection.getURL());
> try {
> BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
> System.out.println("Response from server:");
> String inputLine;
> while ((inputLine = in.readLine()) != null) {
> System.out.println(inputLine);
> }
> in.close();
> } catch (Exception e) {
> System.out.println("Failed: " + e);
> }
> }
> }
> {code}
> {code:xml}
> <!-- dependencies used --->
> <dependency>
> <groupId>org.apache.sshd</groupId>
> <artifactId>sshd-core</artifactId>
> <version>2.5.1</version>
> </dependency>
> <dependency>
> <groupId>org.apache.mina</groupId>
> <artifactId>mina-core</artifactId>
> <version>2.1.3</version>
> </dependency>
> <dependency>
> <groupId>org.slf4j</groupId>
> <artifactId>slf4j-api</artifactId>
> <version>1.7.30</version>
> </dependency>
> <dependency>
> <groupId>org.slf4j</groupId>
> <artifactId>slf4j-simple</artifactId>
> <version>1.7.30</version>
> </dependency>
> {code}
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