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Message-ID: <46C33934.7060802@cfl.rr.com>
Date: Wed, 15 Aug 2007 13:34:44 -0400
From: Phillip Susi <psusi@....rr.com>
To: Kyle Moffett <mrmacman_g4@....com>
CC: Michael Tharp <gxti@...tiallystapled.com>,
alan <alan@...eserver.org>, Marc Perkel <mperkel@...oo.com>,
LKML Kernel <linux-kernel@...r.kernel.org>,
Lennart Sorensen <lsorense@...lub.uwaterloo.ca>
Subject: Re: Thinking outside the box on file systems
Kyle Moffett wrote:
> Going even further in this direction, the following POSIX ACL on the
> directories will do what you want:
>
> ## Note: file owner and group are kmoffett
> u::rw-
> g::rw-
> u:lsorens:rw-
> u:mtharp:rw-
> u:mperkel:rw-
> g:randomcvsdudes:r-
> default:u::rw-
> default:g::rw-
> default:u:lsorens
> default:u:mtharp:rw-
> default:u:mperkel:rw-
> default:g:randomcvsdudes:r-
The problem that I have with this setup is that it specifies an ACL on
EACH file. Yes, you can set a default on the directory for newly
created files, but what if I want to add a user to the access list for
that whole directory? I have to individually update every acl on every
file in that directory. Also if you move a file created elsewhere into
that directory, it retains its existing permissions doesn't it? I would
rather just add a new ace to the directory itself which specifies that
it applies to the entire tree. Then you only need to store a single acl
on disk, and only have to update one acl to add a new user.
-
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