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X-HELO: calimero.vinschen.de
Date: Wed, 9 Dec 2015 11:46:50 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: FindFirstFile fails for some network directories
Message-ID: <20151209104650.GA2747@calimero.vinschen.de>
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On Dec  9 11:43, Orgad Shaneh wrote:
> On Wed, Aug 19, 2015 at 8:28 AM, Orgad Shaneh <orgads AT gmail DOT com> wrote:
> >
> > On Wed, Aug 19, 2015 at 8:46 AM, Orgad Shaneh <orgads AT gmail DOT com> wrote:
> > > Working capture: https://gist.github.com/orgads/d2681881668afb9cb08f
> > > Failing capture: https://gist.github.com/orgads/4f0ea2b26cfd64f4353d
> >
> > I just found another SMB1 linux server, which does work[1].
> >
> > It first has a "NT Create AndX" request for path \, which succeeds.
> > Then it issues Trans2 FIND_FIRST2 request for the real path (\a).
> >
> > This issue might be related to the Archive bit which is set on aclnas01.
> >
> > - Orgad
> >
> > [1] https://gist.github.com/orgads/e76a00c2cc0fc8a43d95
>=20
> Hi,
>=20
> After investigation, I found that the root cause for this problem is
> set_cygwin_privileges, which sets SE_RESTORE_PRIVILEGE and
> SE_BACKUP_PRIVILEGE for the process during initialization.
>=20
> Commenting out these 2 lines solves the problem for me.
>=20
> Can you tell why are they needed at all? There is a comment there:
>=20
>     Allow to access all files, independent of their ACL settings.
>=20
> What does it mean?

These are the user privileges required to allow an admin user accessing
files which don't give him permissions to do so, just like a POSIX root
user.  The usual behaviour of a filesystem should be to refuse the
setting without to fail.


Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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