netdev - Re: Extensible hashing and RCU

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Message-Id: <20070221.020342.59655958.davem@davemloft.net>
Date:	Wed, 21 Feb 2007 02:03:42 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	johnpol@....mipt.ru
Cc:	medwards.linux@...il.com, dada1@...mosbay.com, akepner@....com,
	linux@...izon.com, netdev@...r.kernel.org, bcrl@...ck.org
Subject: Re: Extensible hashing and RCU

From: Evgeniy Polyakov <johnpol@....mipt.ru>
Date: Wed, 21 Feb 2007 12:51:09 +0300

> Linux route cache does not change $c (third parameter), and it _seems_
> that distribution for the random $a and $b is fair, while when $c is
> formed over attacker's data, random per-boot $initval does not help.

It is not only initialized per-boot, it is also regenerated
every 10 minutes by default, via rt_secret_rebuild().
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