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From "Goldstein Lyor (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SSHD-839) Possible bug in DefaultForwardingFilter class
Date Thu, 09 Aug 2018 16:32:00 GMT

    [ https://issues.apache.org/jira/browse/SSHD-839?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16575099#comment-16575099
] 

Goldstein Lyor commented on SSHD-839:
-------------------------------------

Will look into it - would help me locate/reproduce the issue faster if you could provide some
context as to what flow are you running - e.g.:

{quote}
* Open a local/remote tunnel (which ?) on address/port (which ?)
*  Access the tunnel at address/port (which ?) via ...(what application... ?)
{quote}

> Possible bug in DefaultForwardingFilter class
> ---------------------------------------------
>
>                 Key: SSHD-839
>                 URL: https://issues.apache.org/jira/browse/SSHD-839
>             Project: MINA SSHD
>          Issue Type: Bug
>    Affects Versions: 2.0.1
>            Reporter: Roberto Deandrea
>            Priority: Major
>
> Hi, I found a possible bug in method stopLocalPortForwarding() of class DefaultForwardingFilter.
> The effect is that the port bound IS NOT unbound after calling this method.
> For example :
> 2018-08-08 15:28:02.054 [CMDSRV-2] DEBUG o.a.s.c.i.n.Nio2Acceptor.bind - Binding Nio2Acceptor
to address /127.0.0.1:51080
> 2018-08-08 15:28:02.054 [CMDSRV-2] DEBUG o.a.s.c.f.DefaultForwardingFilter.startLocalPortForwarding
- startLocalPortForwarding(127.0.0.1:51080 -> 192.168.50.97:46321): 127.0.0.1:51080
>  
> 2018-08-08 15:28:21.025 [] DEBUG o.a.s.c.f.DefaultForwardingFilter.stopLocalPortForwarding
- stopLocalPortForwarding(127.0.0.1:51080) unbind 192.168.50.97:46321
> The port bound is 51080 on localhost(127.0.0.1).
> This port is not unbounded.
> I think that the problem is on this statement :
>                 acceptor.unbind(bound.toInetSocketAddress()); 
> The statement SHOULD BE instead :
>                 acceptor.unbind(local.toInetSocketAddress());
>  
> Let me know what you think about this issue.
> Thank you in advance
> Roberto



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