From: Tyler Hicks <tyhicks@canonical.com>
To: Jeff King <peff@peff.net>
Cc: Junio C Hamano <gitster@pobox.com>,
Matthieu Moy <Matthieu.Moy@grenoble-inp.fr>,
ecryptfs@vger.kernel.org,
Stefan Beller <stefanbeller@googlemail.com>,
git@vger.kernel.org
Subject: Re: Bugreport on Ubuntu LTS: not ok - 2 Objects creation does not break ACLs with restrictive umask
Date: Tue, 5 Jun 2012 12:16:38 -0700 [thread overview]
Message-ID: <20120605191637.GC25709@boyd> (raw)
In-Reply-To: <20120605164439.GA2694@sigill.intra.peff.net>
[-- Attachment #1: Type: text/plain, Size: 1685 bytes --]
On 2012-06-05 12:44:39, Jeff King wrote:
> On Tue, Jun 05, 2012 at 09:31:54AM -0700, Junio C Hamano wrote:
>
> > >> setfacl -m m:rwx .
> > >> perl -MFcntl -e 'sysopen(X, "a", O_WRONLY|O_CREAT, 0444)'
> > >> umask 077
> > >> perl -MFcntl -e 'sysopen(X, "b", O_WRONLY|O_CREAT, 0444)'
> > >> getfacl a b
> > [...]
> > >
> > > Reading the withdrawn posix 1003.1e and "man 5 acl", it seems pretty
> > > clear that if a default ACL is present, it should be used, and umask
> > > consulted only if it is not (so the umask should not be making a
> > > difference in this case).
> > >
> > > The reproduction recipe above shows the minimum required to trigger it;
> > > adding a more realistic default ACL (with actual entries for users) does
> > > not seem to make a difference.
> >
> > Thanks; so combining the above with your earlier patch to 1304 we
> > would have a good detection for SETFACL prerequisite?
>
> Yes, I think we can detect it reliably. I'd like to hear back from
> ecryptfs folks before making a final patch, though. It may be that there
> is some subtle reason for their behavior, and I want to make sure before
> we write it off as just buggy.
It is likely a bug in the eCryptfs filesystem stacking code.
However, using the above script, I get the same results on eCryptfs as I
do on ext4 in the Ubuntu 12.04 (Precise) LTS:
# file: a
# owner: tyhicks
# group: tyhicks
user::r--
group::r--
other::r--
# file: b
# owner: tyhicks
# group: tyhicks
user::r--
group::---
other::---
Stefan - can you specify which LTS release you're running as well as the
output of `cat /proc/version_signature`? Thanks!
Tyler
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next prev parent reply other threads:[~2012-06-05 19:16 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-04 15:40 Bugreport on Ubuntu LTS: not ok - 2 Objects creation does not break ACLs with restrictive umask Stefan Beller
2012-06-04 20:18 ` Junio C Hamano
[not found] ` <CALbm-EatNCPjFRO4NyGfZuSa72-FXwZcd_7cFe-f_iMOdGL4MQ@mail.gmail.com>
2012-06-04 22:19 ` Junio C Hamano
2012-06-05 6:02 ` Matthieu Moy
2012-06-05 7:23 ` Stefan Beller
2012-06-05 7:43 ` Stefan Beller
2012-06-05 7:56 ` Jeff King
2012-06-05 11:29 ` Matthieu Moy
2012-06-05 12:23 ` Stefan Beller
2012-06-05 13:28 ` Matthieu Moy
2012-06-05 14:04 ` Jeff King
2012-06-05 14:10 ` Jeff King
2012-06-05 14:28 ` Jeff King
2012-06-05 15:05 ` Jeff King
2012-06-05 16:31 ` Junio C Hamano
2012-06-05 16:44 ` Jeff King
2012-06-05 17:27 ` Junio C Hamano
2012-06-06 13:28 ` [PATCH] t1304: improve setfacl prerequisite setup Jeff King
2012-06-06 16:11 ` Stefan Beller
2012-06-06 16:58 ` Junio C Hamano
2012-06-07 9:02 ` Jeff King
2012-06-07 16:16 ` Junio C Hamano
2012-06-08 1:18 ` Brandon Casey
2012-06-05 19:16 ` Tyler Hicks [this message]
2012-06-05 20:45 ` Bugreport on Ubuntu LTS: not ok - 2 Objects creation does not break ACLs with restrictive umask Stefan Beller
2012-06-05 13:29 ` Jeff King
-- strict thread matches above, loose matches on Subject: below --
2012-06-04 20:49 Stefan Beller
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