linux-kernel - Re: [PATCH nf v2] netfilter: conntrack: connection timeout after re-register

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Date:   Wed, 14 Oct 2020 21:35:51 +0200
From:   Florian Westphal <fw@...len.de>
To:     Francesco Ruggeri <fruggeri@...sta.com>
Cc:     Florian Westphal <fw@...len.de>,
        Pablo Neira Ayuso <pablo@...filter.org>,
        Jozsef Kadlecsik <kadlec@...filter.org>,
        open list <linux-kernel@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>, coreteam@...filter.org,
        netfilter-devel@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>,
        David Miller <davem@...emloft.net>
Subject: Re: [PATCH nf v2] netfilter: conntrack: connection timeout after
 re-register

Francesco Ruggeri <fruggeri@...sta.com> wrote:
> On Wed, Oct 14, 2020 at 1:23 AM Florian Westphal <fw@...len.de> wrote:
> >
> > Pablo Neira Ayuso <pablo@...filter.org> wrote:
> > > Legacy would still be flawed though.
> >
> > Its fine too, new rule blob gets handled (and match/target checkentry
> > called) before old one is dismantled.
> >
> > We only have a 0 refcount + hook unregister when rules get
> > flushed/removed explicitly.
> 
> Should the patch be used in the meantime while this gets
> worked out?

I think the patch is correct, and I do NOT see a better solution.