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Date: | Fri, 27 Feb 2015 10:04:16 +0100 |
From: | Corinna Vinschen <corinna-cygwin AT cygwin DOT com> |
To: | cygwin AT cygwin DOT com |
Subject: | Re: Too Many Permissions Stripped In 1.7.35? |
Message-ID: | <20150227090416.GH11124@calimero.vinschen.de> |
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References: | <CADi7v6JajieaQGq3N5LY2Ck2m7SiOTci6au5t7RL4gxZdvBgEw AT mail DOT gmail DOT com> <87twy8cv4k DOT fsf AT Rainer DOT invalid> <20150226202836 DOT GB10024 AT calimero DOT vinschen DOT de> <CADi7v6LLEhH9Dn3X3+W4Fk2=r7brDKuSHoJT3f7P31FX8523fg AT mail DOT gmail DOT com> <20150226205736 DOT GA10870 AT calimero DOT vinschen DOT de> <CADi7v6+u=92JZUjJ85xwuELFDm7-O4i5+Js_aWVV=6F-wHxatQ AT mail DOT gmail DOT com> <20150226222931 DOT GA11124 AT calimero DOT vinschen DOT de> <87wq33x5nh DOT fsf AT Rainer DOT invalid> |
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--ISKrrfpKsPiF35CV Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Feb 27 06:52, Achim Gratz wrote: > Corinna Vinschen writes: > > Having discussed this, I can understand that it may be desirable to > > skip the permissions of the SYSTEM account in these circumstances: > > > > - Computing the POSIX ACL mask and default mask value and thus in > > the permission mask as printed by `ls -l'. > > > > - Changing SYSTEM permissions when calling chmod, unless SYSTEM is the > > file's owning group. > > > > Changing this in the code is pretty straightforward. but I'm not willing > > to add another mount option for this behaviour. Either Cygwin ignores > > SYSTEM in the aforementioned circumstances or it doesn't. > > > > Crucial vote starting... now. >=20 > Given these constraints, I don't think we should treat SYSTEM special > (if we'd start doing that there'd be other cases that could or should be > treated special, maybe depending on further conditions). This is what concerns me most. If we start special-casing SYSTEM, what next? Administrators? Domain Admins? Where does it stop and where does it stop making sense to special-case? > Mounting with > posix/acl then makes Cygwin try to conform to POSIX semantics as much as > possible and potentially strip off ACL permissions when using chmod. > You will need to keep mounting with noacl to avoid that. Corinna --=20 Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Maintainer cygwin AT cygwin DOT com Red Hat --ISKrrfpKsPiF35CV Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBAgAGBQJU8DMQAAoJEPU2Bp2uRE+g1TsP/iioxy+BPT/pegFdswOHNfoo ds2S6XS1jdyIfjQsGoVmfprSVF1ZYw9Fi7s/8GcsvJWZUCc2WX4vyOkt8ng85KpQ RGuCgwHrcsqxLJ6vewEfd/Na0BUW/A4Z0AGTJa3NRR3UlsCO6GpXuQqAGuDCS7K6 HbJ4t5bROOuW7Hg5OArR00QvXryQaUcwudgBIXUMI/u+SHyHhQgLlqTQv1qkGdoF llRYMeCgnNzD7RC+j9OxbUaDL2031rxCFR2yNyXRNP6CS7E1Ppqd/UxGrr/kASO1 tJa1u6FZH0W3EZh9v58xvEEFhLi8PfgzAAvI9xzuY8pe9Q5FTe7rYDBnEs/PUGnb riS71xPgntgTKqrqVUk0qbfwMJytEKzEj35afmT6KvaAzbCs+uLg2pQb2qqLyNL1 V9Xc3xigVhjPkxVekR1aIEcZXj3/2wCpTKqUpJZdpCSSNCHgpw2fLoLIaNGnPAF4 F9tBXngC622iu0WeowFbilwXJxZ4sLuyGNaUODSj8JIS9nu55B25PIroX3ozoNIU ND8rsUvZuLeo5Ye7rGqmbEVoqjNVLmny8E2D5vwWgLsSuehya7/PgW9qYciz0kp+ 5ig7yIsXqGkuWm8fL8G6vvpf3ZzkOxYfdCx1+ciBfrsi3mQQ9zvFVqnXoULCMaa2 aBb9nHDD3bF0sRR6t4Nn =UMCm -----END PGP SIGNATURE----- --ISKrrfpKsPiF35CV--
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