From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter@vger.kernel.org
Subject: Re: Extending an IPv4 filter to IPv6
Date: Sun, 27 Aug 2023 22:49:49 +0200 [thread overview]
Message-ID: <ZOu27b8BAqB5Q1aj@calendula> (raw)
In-Reply-To: <ZOsKgctjEQWSARet@slk15.local.net>
On Sun, Aug 27, 2023 at 06:34:09PM +1000, Duncan Roe wrote:
> On Tue, Aug 22, 2023 at 08:09:53PM +0200, Alessandro Vesely wrote:
> > On Mon 21/Aug/2023 21:10:35 +0200 Pablo Neira Ayuso wrote:
> > > On Mon, Aug 21, 2023 at 07:18:46PM +0200, Alessandro Vesely wrote:
> > > > On Sun 20/Aug/2023 23:41:43 +0200 Pablo Neira Ayuso wrote:
> > > > > On Fri, Aug 18, 2023 at 12:56:38PM +0200, Alessandro Vesely wrote:
> > > > > > [...]
> > It seems a buffer can contain several packets. Is that related with the
> > queue maxlen?
> >
> man 7 netlink will tell you that netlink messages may be batched. This is
> straightforward to observe in a libnetfilter_log program under gdb.
>
> However libnetfilter_queue programs never get batched netlink messages. So the
> callback isn't strictly necessary but it would mean extra code to special-case
> libnetfilter_queue (among all the other netfilter libraries) so it's been left
> there.
The "several packets" in this case refers to Linux GRO/GSO.
next prev parent reply other threads:[~2023-08-27 20:49 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-18 10:56 Extending an IPv4 filter to IPv6, Extending an IPv4 filter to IPv6 Alessandro Vesely
2023-08-19 1:46 ` Duncan Roe
2023-08-19 9:53 ` Extending an IPv4 filter to IPv6, " Alessandro Vesely
2023-08-20 1:09 ` Duncan Roe
2023-08-20 21:39 ` Pablo Neira Ayuso
2023-08-20 21:41 ` Pablo Neira Ayuso
2023-08-21 17:18 ` Extending an IPv4 filter to IPv6, " Alessandro Vesely
2023-08-21 19:10 ` Pablo Neira Ayuso
2023-08-22 18:09 ` Extending an IPv4 filter to IPv6, " Alessandro Vesely
2023-08-27 8:34 ` Duncan Roe
2023-08-27 17:20 ` Extending an IPv4 filter to IPv6, " Alessandro Vesely
2023-08-27 18:58 ` Duncan Roe
2023-08-27 21:12 ` Pablo Neira Ayuso
2023-08-27 20:49 ` Pablo Neira Ayuso [this message]
2023-08-27 20:48 ` Pablo Neira Ayuso
2023-08-31 9:22 ` Extending an IPv4 filter to IPv6, " Alessandro Vesely
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