From: Patrick McHardy <kaber@trash.net>
To: Florian Westphal <fw@strlen.de>
Cc: Jiri Pirko <jiri@resnulli.us>,
netdev@vger.kernel.org, davem@davemloft.net, pablo@netfilter.org,
netfilter-devel@vger.kernel.org, yoshfuji@linux-ipv6.org,
kadlec@blackhole.kfki.hu, mleitner@redhat.com,
kuznet@ms2.inr.ac.ru, jmorris@namei.org, wensong@linux-vs.org,
horms@verge.net.au, ja@ssi.bg, edumazet@google.com,
pshelar@nicira.com, jasowang@redhat.com,
alexander.h.duyck@intel.com, coreteam@netfilter.org
Subject: Re: [patch net-next 2/3] netfilter: ip6_tables: use reasm skb for matching
Date: Tue, 5 Nov 2013 18:19:24 +0000 [thread overview]
Message-ID: <20131105181923.GB7435@macbook.localnet> (raw)
In-Reply-To: <20131105153921.GD15370@breakpoint.cc>
On Tue, Nov 05, 2013 at 04:39:21PM +0100, Florian Westphal wrote:
> Jiri Pirko <jiri@resnulli.us> wrote:
> > Tue, Nov 05, 2013 at 02:41:19PM CET, kaber@trash.net wrote:
> > >executing the rules on the reassembled packet multiple times, one
> > >for each fragment.
> >
> [..]
> > End even though, the matching is now done for each fragment skb anyway. The
> > change is only to do it on different skb. I see no erformance or any
> > other problem in that.
>
> One problem that comes to mind is that nfacct or quota match will
> now account num_of_fragments * length_of_reassemled_skb bytes.
indeed. The easiest way to fix all this (and, btw, also the
pskb_expand_head() oops which is currently reported by multiple people)
is to get rid of all the fragmentation handling and simply use the
reassembled skb.
next prev parent reply other threads:[~2013-11-05 18:19 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-05 11:02 [patch net-next 0/3] couple of reasm fixes Jiri Pirko
2013-11-05 11:02 ` [patch net-next 1/3] move skb_nfct_reasm into skbuff.h Jiri Pirko
2013-11-05 11:50 ` Marcelo Ricardo Leitner
2013-11-06 1:00 ` Simon Horman
2013-11-05 11:02 ` [patch net-next 2/3] netfilter: ip6_tables: use reasm skb for matching Jiri Pirko
2013-11-05 11:50 ` Marcelo Ricardo Leitner
2013-11-05 13:32 ` Florian Westphal
2013-11-05 13:41 ` Patrick McHardy
2013-11-05 15:01 ` Jiri Pirko
2013-11-05 15:39 ` Florian Westphal
2013-11-05 18:19 ` Patrick McHardy [this message]
2013-11-05 18:21 ` Jiri Pirko
2013-11-05 18:16 ` Patrick McHardy
2013-11-05 20:55 ` Jiri Pirko
2013-11-05 22:02 ` Patrick McHardy
2013-11-06 14:18 ` Jiri Pirko
2013-11-06 14:33 ` Florian Westphal
2013-11-06 14:44 ` Jiri Pirko
2013-11-06 14:51 ` Patrick McHardy
2013-11-06 15:29 ` Jiri Pirko
2013-11-06 16:12 ` Eric Dumazet
2013-11-05 11:02 ` [patch net-next 3/3] fix skb_morph to preserve skb->sk and skb->destructor pointers Jiri Pirko
2013-11-05 11:50 ` Marcelo Ricardo Leitner
2013-11-05 14:06 ` Eric Dumazet
2013-11-05 14:47 ` Jiri Pirko
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