netdev - Re: [PATCH net] net/sched: cls_flower: Return invalid for unknown ct

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Date:   Thu, 4 Feb 2021 23:50:53 +0800
From:   wenxu <wenxu@...oud.cn>
To:     Marcelo Ricardo Leitner <mleitner@...hat.com>
Cc:     i.maximets@....org, netdev@...r.kernel.org
Subject: Re: [PATCH net] net/sched: cls_flower: Return invalid for unknown
 ct_state flags rules


在 2021/2/4 21:38, Marcelo Ricardo Leitner 写道:
> Hi,
>
> On Thu, Feb 04, 2021 at 12:17:24PM +0800, wenxu@...oud.cn wrote:
>> From: wenxu <wenxu@...oud.cn>
>>
>> Reject the unknown ct_state flags of cls flower rules. This also make
>> the userspace like ovs to probe the ct_state flags support in the
>> kernel.
> That's a good start but it could also do some combination sanity
> checks, like ovs does in validate_ct_state(). For example, it does:
>
>       if (state && !(state & CS_TRACKED)) {
>           ds_put_format(ds, "%s: invalid connection state: "
>                         "If \"trk\" is unset, no other flags are set\n",
>
So this sanity checks maybe also need to be added in the ovs kernel modules?

The kernel datapath can work without ovs-vswitchd.