[SSHD-230] Support native sftp client

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.8.0
• Fix Version/s: 0.9.0
• Assignee: Guillaume Nodet
• Reporter: Eli Collins
• Created: 27/Jun/13 02:25
• Updated: 17/Jul/13 17:45
• Resolved: 17/Jul/13 17:36

Description

I can't connect via a Linux sftp client to a sshd server, version 0.8.

{shell}
~ $ sftp -P 8000 localhost
subsystem request failed on channel 0
Connection closed{shell} {shell}
apache-sshd-0.8.0 $ ./bin/sshd.sh
Starting SSHD on port 8000
184 [main] INFO org.apache.sshd.common.util.SecurityUtils - Trying to register BouncyCastle as a JCE provider
566 [main] INFO org.apache.sshd.common.util.SecurityUtils - Registration succeeded
5972 [NioProcessor-2] INFO org.apache.sshd.server.session.ServerSession - Session created from /127.0.0.1:36970
6144 [NioProcessor-2] INFO org.apache.sshd.server.session.ServerSession - Session eli@/127.0.0.1:36970 authenticated
6162 [NioProcessor-2] INFO org.apache.sshd.server.session.ServerSession - Session eli@/127.0.0.1:36970 closed{shell}

When running from the latest code (6/26/2013) I get an NPE on the server side:

{shell}
834155 [NioProcessor-7] INFO org.apache.sshd.server.session.ServerSession - Session created from /127.0.0.1:36952
834277 [NioProcessor-7] INFO org.apache.sshd.server.session.ServerSession - Session eli@/127.0.0.1:36952 authenticated
834279 [NioProcessor-7] WARN org.apache.sshd.server.session.ServerSession - Exception caught
java.lang.NullPointerException
at org.apache.sshd.server.channel.ChannelSession.doWriteData(ChannelSession.java:197)
at org.apache.sshd.common.channel.AbstractChannel.handleData(AbstractChannel.java:127)
at org.apache.sshd.common.session.AbstractSession.channelData(AbstractSession.java:1005)
at org.apache.sshd.server.session.ServerSession.running(ServerSession.java:224)
at org.apache.sshd.server.session.ServerSession.handleMessage(ServerSession.java:197)
at org.apache.sshd.common.session.AbstractSession.decode(AbstractSession.java:583)
at org.apache.sshd.common.session.AbstractSession.messageReceived(AbstractSession.java:254)
at org.apache.sshd.common.AbstractSessionIoHandler.messageReceived(AbstractSessionIoHandler.java:58)
at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:716)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796)
at org.apache.mina.core.filterchain.IoFilterAdapter.messageReceived(IoFilterAdapter.java:119)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireMessageReceived(DefaultIoFilterChain.java:426)
at org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:697)
at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:651)
at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:640)
at org.apache.mina.core.polling.AbstractPollingIoProcessor.access$600(AbstractPollingIoProcessor.java:67)
at org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1111)
at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
834281 [NioProcessor-7] INFO org.apache.sshd.server.session.ServerSession - Session eli@/127.0.0.1:36952 closed{shell}