com.maverick.sshd.tunnel
Class RemoteForwardingChannel

java.lang.Object
  com.maverick.sshd.Channel
      com.maverick.sshd.tunnel.ForwardingChannel
          com.maverick.sshd.tunnel.SocketForwardingChannel
              com.maverick.sshd.tunnel.RemoteForwardingChannel

All Implemented Interfaces:

com.maverick.ssh.components.SshComponent

public class RemoteForwardingChannel
extends SocketForwardingChannel

Implements a Remote forwarding channel for use with forwarding sockets from the server machine through the client to some endpoint reachable from the client machine.

Author:

Lee David Painter

Nested Class Summary

Nested classes/interfaces inherited from class com.maverick.sshd.tunnel.SocketForwardingChannel

SocketForwardingChannel.QueuedData

Field Summary

static String

CHANNEL_TYPE

Fields inherited from class com.maverick.sshd.tunnel.ForwardingChannel

hostToConnect, originatingHost, originatingPort, portToConnect

Fields inherited from class com.maverick.sshd.Channel

connection, localwindow, localWindowLock, state

Constructor Summary

RemoteForwardingChannel(RemoteForwardingListeningInterface rfi, org.apache.mina.core.session.IoSession session)
Constructs a forwarding channel of the type "forwarded-tcpip"

Method Summary

protected byte[]	createChannel() Creates the end of the channelopenmessage string address that was connected uint32 port that was connected string originator IP address uint32 originator port
protected void	onChannelOpenFailure() Either nothing was listening on the clients end of the tunnel, or the connection was rejected.
protected void	onRegistrationComplete()
protected void	onRemoteEOF() Called when the remote side is EOF.
protected byte[]	openChannel(byte[] requestdata) Called when the channel is being opened.

Methods inherited from class com.maverick.sshd.tunnel.SocketForwardingChannel

canClose, evaluateClosure, evaluateWindowSpace, onChannelClosed, onChannelClosing, onChannelData, onChannelFree, onChannelOpen, onChannelOpenConfirmation, onChannelRequest, onExtendedData, onLocalEOF, onRemoteClose, sendChannelData

Methods inherited from class com.maverick.sshd.tunnel.ForwardingChannel

getHost, getInformation, getOriginatingHost, getOriginatingPort, getPort

Methods inherited from class com.maverick.sshd.Channel

addEventListener, addInputListener, addOutputListener, close, getConnection, getContext, getLocalId, getLocalPacket, getLocalWindow, getName, getQueueSize, getRemoteId, getRemotePacket, getRemoteWindow, getSessionIdentifier, hasQueuedData, idle, isClosed, isClosing, isEOF, isLocalEOF, isOpen, isRemoteEOF, onWindowAdjust, queueSize, registerExtendedData, removeEventListener, sendChannelData, sendChannelRequest, sendEOF, sendExtendedData, sendRequestResponse, sendWindowAdjust

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

CHANNEL_TYPE

public static final String CHANNEL_TYPE

See Also:

Constant Field Values

Constructor Detail

RemoteForwardingChannel

public RemoteForwardingChannel(RemoteForwardingListeningInterface rfi,
                               org.apache.mina.core.session.IoSession session)

Constructs a forwarding channel of the type "forwarded-tcpip"

Parameters:

hostToConnect - String

portToConnect - int

socketChannel - SocketChannel

Method Detail

createChannel

protected byte[] createChannel()
                        throws IOException,
                               com.maverick.ssh.common.ChannelOpenException

Creates the end of the channelopenmessage string address that was connected uint32 port that was connected string originator IP address uint32 originator port

Specified by:

createChannel in class SocketForwardingChannel

Returns:

byte[], the end of the channelopenmessage

Throws:

IOException

com.maverick.ssh.common.ChannelOpenException

onRemoteEOF

protected void onRemoteEOF()

Called when the remote side is EOF.

Overrides:

onRemoteEOF in class SocketForwardingChannel

onRegistrationComplete

protected void onRegistrationComplete()

openChannel

protected byte[] openChannel(byte[] requestdata)
                      throws WriteOperationRequest,
                             com.maverick.ssh.common.ChannelOpenException

Description copied from class: Channel

Called when the channel is being opened. You can retrun data to be sent in the channel open confirmation message, or null for none.

Specified by:

openChannel in class SocketForwardingChannel

Returns:

byte[]

Throws:

WriteOperationRequest

com.maverick.ssh.common.ChannelOpenException

onChannelOpenFailure

protected void onChannelOpenFailure()

Either nothing was listening on the clients end of the tunnel, or the connection was rejected. Now we close the connection from the server to the start of the tunnel.

Overrides:

onChannelOpenFailure in class Channel