linux-kernel - Re: [PATCH] drivers/net: remove network drivers' last few uses of IRQF_SAMPLE

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Message-ID: <0f7201c8b790$9c2a2340$f9b5a8c0@pii350>
Date:	Fri, 16 May 2008 22:08:29 +0200
From:	"Gilles Espinasse" <g.esp@...e.fr>
To:	<netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drivers/net: remove network drivers' last few uses of IRQF_SAMPLE_RANDOM


----- Original Message ----- 
From: "Alan Cox" <alan@...rguk.ukuu.org.uk>
To: "Lennart Sorensen" <lsorense@...lub.uwaterloo.ca>
Cc: "Jeff Garzik" <jeff@...zik.org>; "Kok, Auke" <auke-jan.h.kok@...el.com>;
"Rick Jones" <rick.jones2@...com>; "Brandeburg, Jesse"
<jesse.brandeburg@...el.com>; "Chris Peterson" <cpeterso@...terso.com>;
<netdev@...r.kernel.org>; <linux-kernel@...r.kernel.org>
Sent: Friday, May 16, 2008 5:10 PM
Subject: Re: [PATCH] drivers/net: remove network drivers' last few uses of
IRQF_SAMPLE_RANDOM


> > receives no input.  While ethernet might not be preferable if you have
> > something else, sometimes you really don't have anything else.
>
> Ethernet is observable so ethernet isn't entropy. There is no "anything
> else" here -> there is no *anything*
> --
That's funny
It does look to disturb some kernel developper that ethernet may be sniffed
to feed a RNG
even that could be very hard to reach any effective result in the case of a
machine splitting
different network segments.

In the same time, it does not disturb openssl developpers to include non
initialised
memory that may or may not be predictable to feed a RNG.
http://marc.info/?l=openssl-dev&m=121095151003011&w=2

 Gilles

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