org.apache.sshd.common.session.helpers

Class DefaultUnknownChannelReferenceHandler

java.lang.Object

org.apache.sshd.common.util.logging.AbstractLoggingBean

org.apache.sshd.common.session.helpers.DefaultUnknownChannelReferenceHandler

All Implemented Interfaces:

UnknownChannelReferenceHandler

public class DefaultUnknownChannelReferenceHandler
extends AbstractLoggingBean
implements UnknownChannelReferenceHandler

Author:

Apache MINA SSHD Project

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	DEFAULT_SEND_REPLY_FOR_CHANNEL_DATA
static DefaultUnknownChannelReferenceHandler	INSTANCE
static String	SEND_REPLY_FOR_CHANNEL_DATA RFC4254 does not clearly specify how to handle SSH_MSG_CHANNEL_DATA and SSH_MSG_CHANNEL_EXTENDED_DATA received through an unknown channel.

Fields inherited from class org.apache.sshd.common.util.logging.AbstractLoggingBean

log

Constructor Summary

Constructors

Constructor and Description
DefaultUnknownChannelReferenceHandler()

Method Summary

Modifier and Type	Method and Description
Channel	handleUnknownChannelCommand(ConnectionService service, byte cmd, int channelId, Buffer buffer) Invoked when the connection service responsible for handling channel messages receives a message intended for an unknown channel.
protected IoWriteFuture	sendFailureResponse(ConnectionService service, byte cmd, int channelId)

Methods inherited from class org.apache.sshd.common.util.logging.AbstractLoggingBean

getSimplifiedLogger

Methods inherited from class java.lang.Object

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

Field Detail

SEND_REPLY_FOR_CHANNEL_DATA

public static final String SEND_REPLY_FOR_CHANNEL_DATA

RFC4254 does not clearly specify how to handle SSH_MSG_CHANNEL_DATA and SSH_MSG_CHANNEL_EXTENDED_DATA received through an unknown channel. Therefore, we provide a configurable approach to it with the default set to ignore it.

See Also:

Constant Field Values

DEFAULT_SEND_REPLY_FOR_CHANNEL_DATA

public static final boolean DEFAULT_SEND_REPLY_FOR_CHANNEL_DATA

See Also:

Constant Field Values

INSTANCE

public static final DefaultUnknownChannelReferenceHandler INSTANCE

Constructor Detail

DefaultUnknownChannelReferenceHandler

public DefaultUnknownChannelReferenceHandler()

Method Detail

handleUnknownChannelCommand

public Channel handleUnknownChannelCommand(ConnectionService service,
                                           byte cmd,
                                           int channelId,
                                           Buffer buffer)
                                    throws IOException

Description copied from interface: UnknownChannelReferenceHandler

Invoked when the connection service responsible for handling channel messages receives a message intended for an unknown channel.

Specified by:

handleUnknownChannelCommand in interface UnknownChannelReferenceHandler

Parameters:

service - The ConnectionService instance through which the message was received

cmd - The requested command identifier

channelId - The (unknown) target channel identifier

buffer - The message Buffer containing the rest of the message

Returns:

The resolved Channel - if null then the message for the unknown channel is ignored.

Throws:

IOException - If failed to handle the request

sendFailureResponse

protected IoWriteFuture sendFailureResponse(ConnectionService service,
                                            byte cmd,
                                            int channelId)
                                     throws IOException

Throws:

IOException