Re: [TESTERS needed] New POSIX permission handling

[Corinna Vinschen <corinna-cygwin at cygwin dot com>]

On Apr 17 09:30, Corinna Vinschen wrote:
> Hi Ismail,
> 
> On Apr 16 09:48, Ismail Donmez wrote:
> > Corinna Vinschen-2 wrote
> > > On Apr 16 09:09, Ismail Donmez wrote:
> > >> [~/src/mutt]> chmod +x config.status
> > >> chmod: changing permissions of âconfig.statusâ: Permission denied
> 
> This is really surprising.
> 
> > [~/src/mutt]> icacls config.status
> > config.status NULL SID:(DENY)(Rc,S,REA,X,DC)
> >               UX31A\ismail:(F)
> >               UX31A\ismail:(RX)
> >               NT AUTHORITY\SYSTEM:(RX,W,DC)
> >               BUILTIN\Administrators:(RX,W,DC)
> >               Everyone:(RX)
> > 
> > Successfully processed 1 files; Failed processing 0 files
> > 
> > [~/src/mutt]> icacls .
> > . NULL SID:(DENY)(Rc,S,REA,X,DC)
> >   UX31A\ismail:(F)
> >   UX31A\ismail:(RX)
> >   NT AUTHORITY\SYSTEM:(RX,W,DC)
> >   BUILTIN\Administrators:(RX,W,DC)
> >   Everyone:(RX)
> >   NULL SID:(OI)(CI)(IO)(DENY)(Rc,S,REA,X,DC)
> >   CREATOR OWNER:(OI)(CI)(IO)(F)
> >   CREATOR GROUP:(OI)(CI)(IO)(RX)
> >   NT AUTHORITY\SYSTEM:(OI)(CI)(IO)(RX,W,DC)
> >   BUILTIN\Administrators:(OI)(CI)(IO)(RX,W,DC)
> >   Everyone:(OI)(CI)(IO)(RX)
> 
> I created the exact same scenario with the exact same ACLs, just with my
> own account as user and group, and I can't reproduce a "Permission
> denied".  chmod simply works for me.  Weird.
> 
> While looking into this I found some other problems in this owner==group
> scenario, so I applied a few patches.  I'm just creating new developer
> snapshots and a 2.0.0-0.6 test release.
> 
> It would be nice if you could update, test again, and if the problem
> still occurs, I think I'll need an strace of the above chmod call as
> in:
> 
>   $ strace -o chmod.trace chmod +x config.status
> 
> This combined with the icacls of the ACLs of config.status and the
> parent dir, just to be sure the new Cygwin created the same ACLs.

I think I found the culprit.  I'll uploade a -0.7 test release in
the next hour or so.


Thanks for testing,
Corinna

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

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