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From: Achim Gratz <Stromeko@nexgo.de>
To: cygwin@cygwin.com
Subject: Re: ACL behavior in Cygwin // Re: (call-process ...) hangs in emacs
References: <53E3F2AE.7030608@redhat.com> <53E4D01B.9010005@cornell.edu>	<53F1F154.1020702@cornell.edu> <53FB87DC.2050908@cornell.edu>	<87wq9v9j2y.fsf@Rainer.invalid> <53FD0662.5050208@cornell.edu>	<20140827084245.GD20700@calimero.vinschen.de>	<17910052714.20140828010203@yandex.ru>	<20140828100112.GQ20700@calimero.vinschen.de>	<187704841.20140828172337@yandex.ru>	<20140828141036.GW20700@calimero.vinschen.de>	<1833268701.20140828210041@yandex.ru>
Date: Thu, 28 Aug 2014 20:29:14 +0200
In-Reply-To: <1833268701.20140828210041@yandex.ru> (Andrey Repin's message of	"Thu, 28 Aug 2014 21:00:41 +0400")
Message-ID: <87fvgglb7p.fsf@Rainer.invalid>
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Andrey Repin writes:
>> What Cygwin could do is to perform ACL-based access checks independently of
>> the "acl"/"noacl" mount mode on FSes supporting ACLs.  However, if you want
>> ACLs, why not use the "acl" mount mode in the first place?
>
> ACL inheritance, mostly. POSIX'ized permissions break inheritance on newly
> created files, at times making these files inaccessible to native
> applications, even though inheritance rules would allow it otherwise.

You can prevent this from happening if you forbid users to change the
ACL and enforce inheritance.  That's the reason I can't give those files
sensible POSIX permissions since they'd need to be translated into ACL
which I can't write.  All our filers are set up that way.  No I don't
think this is a good idea, but I guess there'd been one support call too
many with a share that somebody made inaccessible by fiddling with the
ACL.


Regards,
Achim.
-- 
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