openssh bugs - Jun 2015 - [Bug 2414] New: ControlMaster directive should be ignored on Cygwin

https://bugzilla.mindrot.org/show_bug.cgi?id=2414

            Bug ID: 2414
           Summary: ControlMaster directive should be ignored on Cygwin
           Product: Portable OpenSSH
           Version: -current
          Hardware: Other
                OS: Cygwin on NT/2k
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: ssh
          Assignee: unassigned-bugs at mindrot.org
          Reporter: ismail at donmez.ws

I am sharing my ssh configuration between Linux & Cygwin and having

ControlMaster auto

in my configuration breaks havoc on Cygwin since its actually not
supported there and probably won't be supported anytime soon. Hence, I
believe it would be very nice to ignore ControlMaster directive on
Cygwin, or assume it to be "no" all the time.

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned-bugs at mindrot.org |djm at mindrot.org
             Status|NEW                         |ASSIGNED
                 CC|                            |djm at mindrot.org,
                   |                            |dtucker at zip.com.au
   Attachment #2673|                            |ok?(dtucker at zip.com.au)
              Flags|                            |

--- Comment #1 from Damien Miller <djm at mindrot.org> ---
Created attachment 2673
  --> https://bugzilla.mindrot.org/attachment.cgi?id=2673&action=edit
Make ssh_config IgnoreUnknown silence oUnsupported options too

We could mark the option as oUnsupported, but AFAIK that would cause
stderr spam every time you ran ssh. I guess we could make IgnoreUnknown
apply to unsupported options too?

Here's a patch that attempts this.

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--- Comment #2 from Damien Miller <djm at mindrot.org> ---
oh wait, what error do you receive when you attempt "ControlMaster
auto"?

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--- Comment #3 from Ismail Donmez <ismail at donmez.ws> ---
(In reply to Damien Miller from comment #2)
> oh wait, what error do you receive when you attempt "ControlMaster
> auto"?
? ssh -o ControlMaster=auto i10z.com
process_mux_new_session: tcgetattr: Inappropriate ioctl for device
Last login: Thu Jul 16 20:08:03 2015 from 95.14.75.132
havana ? ~
? select: Interrupted system call
Shared connection to i10z.com closed.

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--- Comment #4 from Ismail Donmez <ismail at donmez.ws> ---
Any chance of having this for 7.0 release?

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Jakub Jelen <jjelen at redhat.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jjelen at redhat.com

--- Comment #5 from Jakub Jelen <jjelen at redhat.com> ---
I attached a patch with different solution to the other bug #1278
related to this issue.

Basically I don't disable this feature, since it is quite useful in
remote scripting, instead I did workaround which is now successfully
used in scap-workbench.

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