kern/63954: devfs looses permissions
Edwin Groothuis
edwin at mavetju.org
Tue Mar 9 21:00:35 PST 2004
The following reply was made to PR kern/63954; it has been noted by GNATS.
From: Edwin Groothuis <edwin at mavetju.org>
To: freebsd-gnats-submit at FreeBSD.org
Cc: Colin Percival <colin.percival at wadham.ox.ac.uk>
Subject: Re: kern/63954: devfs looses permissions
Date: Wed, 10 Mar 2004 15:53:50 +1100
On Tue, Mar 09, 2004 at 08:40:11PM -0800, Colin Percival wrote:
> Maybe I'm missing something, but I can't see any
> permissions being lost. I see device nodes being
> removed, but that's all.
Yes they are removed. That's part of the problem, because when
they're (tried to be) opened again, I get a permission denied.
> What happens if you start a few tcpdump processes
> and the nodes are recreated?
[~] edwin at k7>ls -al /dev/bpf*
crw-r----- 1 root wheel 23, 0 Mar 8 16:46 /dev/bpf0
crw-r----- 1 root wheel 23, 1 Feb 27 15:09 /dev/bpf1
[~] edwin at k7>groups
edwin wheel
[~] edwin at k7>tcpdump -ni fxp0
tcpdump: (no devices found) /dev/bpf2: Permission denied
Edwin
--
Edwin Groothuis | Personal website: http://www.mavetju.org
edwin at mavetju.org | Weblog: http://weblog.barnet.com.au/edwin/
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