netdev - Re: [PATCH stable] ipv6: restrict neighbor entry creation to output flow

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Date:	Mon, 9 Sep 2013 14:17:19 +0200
From:	Jiri Pirko <jiri@...nulli.us>
To:	David Miller <davem@...emloft.net>
Cc:	hannes@...essinduktion.org, mleitner@...hat.com,
	netdev@...r.kernel.org, dbanerje@...mai.com,
	yoshfuji@...ux-ipv6.org
Subject: Re: [PATCH stable] ipv6: restrict neighbor entry creation to output
 flow

Fri, Aug 16, 2013 at 12:54:54AM CEST, davem@...emloft.net wrote:
>From: Hannes Frederic Sowa <hannes@...essinduktion.org>
>Date: Wed, 14 Aug 2013 17:00:54 +0200
>
>> On Wed, Aug 14, 2013 at 10:53:27AM -0300, Marcelo Ricardo Leitner wrote:
>>> This patch is based on 3.2.y branch, the one used by reported. Please let me
>>> know if it should be different. Thanks.
>>> 
>>> ---8<---
>>> 
>>> Commit 0d6a77079c475033cb622c07c5a880b392ef664e introduced a regression on
>>> which routes to local delivery would not work anymore. Like this:
>>> 
>>>     $ ip -6 route add local 2001::/64 dev lo
>>>     $ ping6 -c1 2001::9
>>>     PING 2001::9(2001::9) 56 data bytes
>>>     ping: sendmsg: Invalid argument
>>> 
>>> As this is a local delivery, that commit would not allow the creation of a
>>> neighbor entry and thus the packet cannot be sent.
>>> 
>>> But as TPROXY scenario actually needs to avoid the neighbor entry creation only
>>> for input flow, this patch now limits previous patch to input flow, keeping
>>> output as before that patch.
>>> 
>>> Reported-by: Debabrata Banerjee <dbavatar@...il.com>
>>> Signed-off-by: Marcelo Ricardo Leitner <mleitner@...hat.com>
>>> CC: Hannes Frederic Sowa <hannes@...essinduktion.org>
>> 
>> Looks good, thanks Marcelo!
>> 
>> Acked-by: Hannes Frederic Sowa <hannes@...essinduktion.org>
>> 
>> David, this patch is for all stable kernels except the 3.10 series.
>> It does not apply cleanly throughout the whole longterm kernels but the
>> changes should not be too difficult to adapt. Do you take care of this
>> or can we do something to ease this process?
>
>I've queued it up for -stable, thanks.

Hi Dave.

When do you plan to push this to stable maintainers?

Thanks!

Jiri

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