Re: [ovs-dev] [PATCH net 0/3] net/sched: Fix ct zone matching for invalid conntrack state

2021-12-08 Thread Paul Blakey via dev



On Thu, 9 Dec 2021, Jakub Kicinski wrote:

> On Wed, 8 Dec 2021 19:02:37 +0200 Paul Blakey wrote:
> > Currently, when a packet is marked as invalid conntrack_in in act_ct,
> > post_ct will be set, and connection info (nf_conn) will be removed
> > from the skb. Later openvswitch and flower matching will parse this
> > as ct_state=+trk+inv. But because the connection info is missing,
> > there is also no zone info to match against even though the packet
> > is tracked.
> > 
> > This series fixes that, by passing the last executed zone by act_ct.
> > The zone info is passed along from act_ct to the ct flow dissector
> > (used by flower to extract zone info) and to ovs, the same way as post_ct
> > is passed, via qdisc layer skb cb to dissector, and via skb extension
> > to OVS.
> > 
> > Since there was no more for BPF skb cb to extend the qdisc skb cb,
> > tc info on the qdisc skb cb is moved to a tc specific cb that extend it
> > instead of within it (same as BPF).
> 
> The last paragraph is missing words.
> 
> Please repost and cast a wider net for reviewers, you must CC blamed
> authors.
> 

sure, posted v2. Thanks
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Re: [ovs-dev] [PATCH net 0/3] net/sched: Fix ct zone matching for invalid conntrack state

2021-12-08 Thread Jakub Kicinski
On Wed, 8 Dec 2021 19:02:37 +0200 Paul Blakey wrote:
> Currently, when a packet is marked as invalid conntrack_in in act_ct,
> post_ct will be set, and connection info (nf_conn) will be removed
> from the skb. Later openvswitch and flower matching will parse this
> as ct_state=+trk+inv. But because the connection info is missing,
> there is also no zone info to match against even though the packet
> is tracked.
> 
> This series fixes that, by passing the last executed zone by act_ct.
> The zone info is passed along from act_ct to the ct flow dissector
> (used by flower to extract zone info) and to ovs, the same way as post_ct
> is passed, via qdisc layer skb cb to dissector, and via skb extension
> to OVS.
> 
> Since there was no more for BPF skb cb to extend the qdisc skb cb,
> tc info on the qdisc skb cb is moved to a tc specific cb that extend it
> instead of within it (same as BPF).

The last paragraph is missing words.

Please repost and cast a wider net for reviewers, you must CC blamed
authors.
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