Re: [patch 1/2] [RFC] Simple tamper-proof device filesystem.

From: Tetsuo Handa
Date: Sun Dec 16 2007 - 06:26:58 EST


Hello.

David Newall wrote:
> Tetsuo Handa wrote:
> > /dev needs to be writable, but this means that files on /dev might be
> > tampered with.
>
> I infer that you mean /dev needs to be writable by anyone, not by just
> its owner or owner and group (conventionally root/root.) This goes
> against conventional wisdom, which is that /dev must be writable only by
> the administrator. Why do you say otherwise?
I didn't mean that "/dev is writable by everybody".
I meant that "/dev must be mounted for read-write mode"
(even if one wants to mount / for read-only mode).

Regards.
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