From: Pablo Neira Ayuso <pablo@netfilter.org>
To: Kevin Cernekee <cernekee@chromium.org>
Cc: netfilter-devel@vger.kernel.org
Subject: Re: Snooping expected connections in a user CT helper
Date: Fri, 9 Sep 2016 12:47:55 +0200 [thread overview]
Message-ID: <20160909104755.GA9943@salvia> (raw)
In-Reply-To: <20160908221824.GA28289@salvia>
On Fri, Sep 09, 2016 at 12:18:24AM +0200, Pablo Neira Ayuso wrote:
[...]
> > > 2) The timeout is not extended when there is activity on the
> > > expectation. It would be good if it was extended any time there is
> > > new activity, in order to support long-lived subscriptions.
>
> Actually, I thought permanent expectation has no timeout, but looking
> at the code it seems they do. I think it makes sense to refresh it or
> to keep it fixed, given that this depends on the master, it will just
> go away once the master is not there anymore.
Revisiting this: Actually, you are in control of the expectation time
too, so you can set a larger one given this is bound by the master
conntrack if you don't want to cook a patch to update this.
The question here is what are the reasonable timeouts to set, I guess
you can extract this from this application protocol behaviour or any
standard that document it.
prev parent reply other threads:[~2016-09-09 10:47 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-17 4:51 Snooping expected connections in a user CT helper Kevin Cernekee
2016-08-18 1:12 ` Pablo Neira Ayuso
2016-08-23 3:34 ` Kevin Cernekee
2016-08-23 15:36 ` Pablo Neira Ayuso
2016-09-01 23:47 ` Kevin Cernekee
2016-09-08 22:02 ` Kevin Cernekee
2016-09-08 22:18 ` Pablo Neira Ayuso
2016-09-09 10:47 ` Pablo Neira Ayuso [this message]
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