From: Patrick McHardy <kaber@trash.net>
To: Jan Engelhardt <jengelh@medozas.de>
Cc: netfilter-devel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH 5/5] netfilter: xt_TEE: have cloned packet travel through Xtables too
Date: Thu, 01 Apr 2010 12:37:28 +0200 [thread overview]
Message-ID: <4BB47768.1050405@trash.net> (raw)
In-Reply-To: <1270031934-15940-6-git-send-email-jengelh@medozas.de>
Jan Engelhardt wrote:
> Since Xtables is now reentrant/nestable, the cloned packet can also go
> through Xtables and be subject to rules itself.
That sounds dangerous if conntrack isn't used to prevent loops.
Is that really useful? For filtering, you can simply apply the
rules before deciding to TEE the packet.
next prev parent reply other threads:[~2010-04-01 10:37 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-31 10:38 nf-next: TEE and nesting Jan Engelhardt
2010-03-31 10:38 ` [PATCH 1/5] netfilter: ipv6: move POSTROUTING invocation before fragmentation Jan Engelhardt
2010-04-01 10:23 ` Patrick McHardy
2010-03-31 10:38 ` [PATCH 2/5] net: ipv6: add IPSKB_REROUTED exclusion to NF_HOOK/POSTROUTING invocation Jan Engelhardt
2010-04-01 8:34 ` David Miller
2010-03-31 10:38 ` [PATCH 3/5] netfilter: xtables: inclusion of xt_TEE Jan Engelhardt
2010-04-01 10:34 ` Patrick McHardy
2010-04-01 11:39 ` Jan Engelhardt
2010-04-01 11:54 ` Patrick McHardy
2010-03-31 10:38 ` [PATCH 4/5] netfilter: xtables2: make ip_tables reentrant Jan Engelhardt
2010-03-31 10:38 ` [PATCH 5/5] netfilter: xt_TEE: have cloned packet travel through Xtables too Jan Engelhardt
2010-04-01 10:37 ` Patrick McHardy [this message]
2010-04-01 11:03 ` Jan Engelhardt
2010-04-01 11:09 ` Patrick McHardy
2010-04-01 13:15 ` Jan Engelhardt
2010-04-01 13:22 ` Patrick McHardy
2010-04-01 13:44 ` Jan Engelhardt
2010-04-01 13:48 ` Patrick McHardy
2010-04-01 13:59 ` Jan Engelhardt
2010-04-01 14:03 ` Patrick McHardy
2010-04-02 18:15 ` Jan Engelhardt
2010-04-06 16:14 ` Jan Engelhardt
2010-04-06 16:37 ` Patrick McHardy
2010-04-07 13:26 ` Jan Engelhardt
-- strict thread matches above, loose matches on Subject: below --
2010-03-31 10:31 nf-next: TEE and nesting Jan Engelhardt
2010-03-31 10:31 ` [PATCH 5/5] netfilter: xt_TEE: have cloned packet travel through Xtables too Jan Engelhardt
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