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Cc: Alexander Viro <viro@math.psu.edu>, "Theodore Ts'o" <tytso@mit.edu>,
       Dax Kelson <dax@gurulabs.com>, Rusty Russell <rusty@rustcorp.com.au>,
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References: <Pine.LNX.4.44.0211021925230.2382-100000@home.transmeta.com>
From: Olaf Dietsche <olaf.dietsche#list.linux-kernel@t-online.de>
To: Linus Torvalds <torvalds@transmeta.com>
Subject: Re: Filesystem Capabilities in 2.6?
Date: Sun, 03 Nov 2002 14:55:29 +0100
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Linus Torvalds <torvalds@transmeta.com> writes:

> On Sat, 2 Nov 2002, Linus Torvalds wrote:
>
> It occurs to me that we actually do have the "extended symlink" concept in
> UNIX already: the existing "#!" escape for executables is really exactly
> that. It's just a structured symlink, except the extension is not a
> capability, but rather it's the script to be fed to the executable.
>
> With a simple extended binfmt_misc.c or binfmt_script.c, we could do a
> capability escape (that only removes capabilities, but allows for suid
> shells) fairly easily if people really want it. And it would work on any
> almost-UNIXy filesystem, including NFS etc.

Look at <http://marc.theaimsgroup.com/?l=linux-kernel&m=101639590421603>.

Regards, Olaf.
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