[Bug 2885] sshd is not using chroot and privsep on default cygwin install any more

bugzilla-daemon at bugzilla.mindrot.org bugzilla-daemon at bugzilla.mindrot.org
Fri Sep 14 13:53:11 AEST 2018


Darren Tucker <dtucker at dtucker.net> changed:

           What    |Removed                     |Added
                 CC|                            |dtucker at dtucker.net

--- Comment #5 from Darren Tucker <dtucker at dtucker.net> ---
(In reply to Corinna Vinschen from comment #4)
> Privsep never worked fully on Cygwin.  It uses descriptor passing
> via AF_UNIX sockets which isn't implemented in Cygwin (yet).
> So when privsep was introduced, only one half of it got used on
> Cygwin.
> The problem is, I don't remember which part of it.

If the sticking point is descriptor passing then that's used for pty
allocation in post-auth privsep, so that would make preauth the working

There used to also be an anonymous mmap thing that got used for zlib
state passing, but since preauth zlib is now gone that shouldn't be an

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