netdev - Re: [PATCH 1/2] net: Toeplitz library functions

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Date:	Mon, 23 Sep 2013 22:38:38 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Hannes Frederic Sowa <hannes@...essinduktion.org>
Cc:	Tom Herbert <therbert@...gle.com>, davem@...emloft.net,
	netdev@...r.kernel.org, jesse.brandeburg@...el.com
Subject: Re: [PATCH 1/2] net: Toeplitz library functions

On Tue, 2013-09-24 at 05:35 +0200, Hannes Frederic Sowa wrote:

> > build_ehash_secret builds up the data which seeds fragmentation ids, ephermal
> > port randomization etc. Could we drop the check of sock->type? I guess the
> > idea was that in-kernel sockets of type raw/udp do not seed the keys when no
> > entropy is available?
> 
> Would this be better (I checked inet_ehash_secret, ipv6_hash_secret
> and net_secret to actual get initialized)?
> 

inet_ehash_secret is used only to make jhash() for tcp ehash, not for
fragmentation ids or other uses (port randomization).


> [PATCH] inet: initialize hash secret values on first non-kernel socket creation
> 
> Signed-off-by: Hannes Frederic Sowa <hannes@...essinduktion.org>
> ---

Why ? This looks buggy to me.



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