netdev - Re: [PATCH V3 net 1/2] openvswitch: Properly set L4 keys on "later" IP fragments

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Message-ID: <cd167c27-11d2-a0e3-b7f2-abcbc029e77c@gmail.com>
Date:   Tue, 27 Aug 2019 21:19:33 -0700
From:   Gregory Rose <gvrose8192@...il.com>
To:     Pravin Shelar <pshelar@....org>
Cc:     Linux Kernel Network Developers <netdev@...r.kernel.org>,
        Joe Stringer <joe@...d.net.nz>
Subject: Re: [PATCH V3 net 1/2] openvswitch: Properly set L4 keys on "later"
 IP fragments


On 8/27/2019 5:33 PM, Pravin Shelar wrote:
> On Tue, Aug 27, 2019 at 7:58 AM Greg Rose <gvrose8192@...il.com> wrote:
>> When IP fragments are reassembled before being sent to conntrack, the
>> key from the last fragment is used.  Unless there are reordering
>> issues, the last fragment received will not contain the L4 ports, so the
>> key for the reassembled datagram won't contain them.  This patch updates
>> the key once we have a reassembled datagram.
>>
>> The handle_fragments() function works on L3 headers so we pull the L3/L4
>> flow key update code from key_extract into a new function
>> 'key_extract_l3l4'.  Then we add a another new function
>> ovs_flow_key_update_l3l4() and export it so that it is accessible by
>> handle_fragments() for conntrack packet reassembly.
>>
>> Co-authored by: Justin Pettit <jpettit@....org>
>> Signed-off-by: Greg Rose <gvrose8192@...il.com>
>>
> Looks good to me.
>
> Acked-by: Pravin B Shelar <pshelar@....org>
>
> Thanks,
> Pravin.

Thanks Pravin.

I missed a dash in the Co-authored-by line.  If that could be fixed up 
on commit then good, otherwise I can resend.

- Greg