Goldstein Lyor created SSHD-400:
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             Summary: Ignore SFTP extension data in SSH_FXP_INIT message
                 Key: SSHD-400
                 URL: https://issues.apache.org/jira/browse/SSHD-400
             Project: MINA SSHD
          Issue Type: Improvement
            Reporter: Goldstein Lyor
            Priority: Minor


According to the [specification](see 
https://filezilla-project.org/specs/draft-ietf-secsh-filexfer-02.txt) - section 
4 - Protocol Initialization - the _SSH_FXP_INIT_ message may contain optional 
extension strings and "Implementations MUST silently ignore any extensions 
whose name they do not recognize.".

While such extensions may be rare, IMO we don't want the SSHD server to fail 
talking to such clients. Attached is a patch in that spirit.



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