netdev - Re: [PATCH] sctp: IPsec rules are ineffective with ipv6

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Date:	Thu, 28 Jan 2010 11:36:33 -0500
From:	Vlad Yasevich <vladislav.yasevich@...com>
To:	nicolas.dichtel@....6wind.com
CC:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	linux-sctp@...r.kernel.org
Subject: Re: [PATCH] sctp: IPsec rules are ineffective with ipv6



Nicolas Dichtel wrote:
> What about this one?
> 
> Only compilation tested.
> 
> xfrm_lookup() is missing in IPv6 output path. Call it when dst is build.
> Initial patch was written by Junwei Zhang <junwei.zhang@...nd.com>
> 
> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@...nd.com>

Looks like it might do the right thing.  Please run your tests
on this an let me.

Thanks
-vlad

> 
> Le 28.01.2010 16:24, Vlad Yasevich a écrit :
>>
>> David Miller wrote:
>>> From: Nicolas Dichtel <nicolas.dichtel@....6wind.com>
>>> Date: Wed, 27 Jan 2010 15:12:59 +0100
>>>
>>>> xfrm_lookup() is missing in sctp_v6_xmit(), add it.
>>>>
>>>> Signed-off-by: Junwei Zhang <junwei.zhang@...nd.com>
>>>> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@...nd.com>
>>> Doing this every transmit packet is overkill.
>>>
>>> Whatever calculates the route that ends up in skb_dst(skb)
>>> should be making this xfrm_lookup() call, not here.
>>>
>>
>>
>> Hmm.. Interesting.  Looks like ip_route_output_key() will
>> do xfrm_lookup for you, but there is no ipv6 route lookup call
>> that will do the same thing.
>>
>> I guess we'll need to add an xfrm_lookup call in sctp_v6_get_dst().
>>
>> -vlad


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