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Re: [PATCHv4 net-next 05/10] openvswitch: Add conntrack action

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  Re: [PATCHv4 net-next 05/10] openvswitch: Add conntrack action Thomas Graf <tgraf@suug.ch> - 2015-08-20 18:30 +0200

#1210620 — Re: [PATCHv4 net-next 05/10] openvswitch: Add conntrack action

On 08/18/15 at 04:39pm, Joe Stringer wrote:
> Expose the kernel connection tracker via OVS. Userspace components can
> make use of the "ct()" action, followed by "recirculate", to populate
> the conntracking state in the OVS flow key, and subsequently match on
> that state.
> 
> Example ODP flows allowing traffic from 1->2, only replies from 2->1:
> in_port=1,tcp,action=ct(commit,zone=1),2
> in_port=2,ct_state=-trk,tcp,action=ct(zone=1),recirc(1)
> recirc_id=1,in_port=2,ct_state=+trk+est-new,tcp,action=1
> 
> IP fragments are handled by transparently assembling them as part of the
> ct action. The maximum received unit (MRU) size is tracked so that
> refragmentation can occur during output.
> 
> IP frag handling contributed by Andy Zhou.
> 
> Signed-off-by: Joe Stringer <joestringer@nicira.com>
> Signed-off-by: Justin Pettit <jpettit@nicira.com>
> Signed-off-by: Andy Zhou <azhou@nicira.com>

OVS bits look great.

Acked-by: Thomas Graf <tgraf@suug.ch>
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