Potential Enhancement Of 'noacl'?

Corinna Vinschen corinna-cygwin@cygwin.com
Fri Apr 17 18:56:00 GMT 2015

On Apr 17 14:11, Bryan Berns wrote:
> Wasn't sure which mailing list I should throw this on so I apologize
> if this is the wrong one -- just let me know for future purposes.
> At least for my internal use, I plan to create a patch that will allow
> me to conditionally force a permission set for a particular mount
> point -- like an enhanced "noacl".  I was thinking about adding an
> option after noacl[=XXX] where XXX would force XXX as the returned
> permissions for any file on that mount point.

I'm not out-of-the-box enthusiastic about it...

> Why would someone want to do this crazy thing?  In short, I continue
> to struggle with the current Cygwin permissions handling for certain
> drives where programs do sanity checks on group readability (e.g.,
> ssh).

That puzzles me.  OpenSSH is upstream Cygwin-aware, and the code skips
permission checks on files if the underlying filesystem does not support
permissions (e.g. noacl or FAT FS).  What problem do you have in real
life with noacl?

> Would this (the noacl thing) be something that we'd be potentially
> willing to incorporate into the codebase?  If I know ahead of time,
> I'll make sure I address some other artifacts (user guide
> documentation, etc).

I'd like to discuss this first..  But, alas, Red Tape rulez.  If you
want to provide code, you'll have to sign a copyright assignment.
Please have a look at https://cygwin.com/contrib.html.  It contains some
description and a pointer to the assignment text.


Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat
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