From: Pablo Neira Ayuso <pablo@netfilter.org>
To: Changli Gao <xiaosuo@gmail.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>,
Patrick McHardy <kaber@trash.net>,
"David S. Miller" <davem@davemloft.net>,
netdev@vger.kernel.org, netfilter-devel@vger.kernel.org,
Luciano Coelho <luciano.coelho@nokia.com>
Subject: Re: [PATCH] netfilter: xtables: userspace notification target
Date: Tue, 13 Jul 2010 10:50:52 +0200 [thread overview]
Message-ID: <4C3C28EC.2000302@netfilter.org> (raw)
In-Reply-To: <AANLkTil2EgQbzUqYNHAYpIWJvyyE6AWq1TpvxrqVsD7k@mail.gmail.com>
On 13/07/10 08:18, Changli Gao wrote:
> On Tue, Jul 13, 2010 at 8:11 AM, Samuel Ortiz <sameo@linux.intel.com> wrote:
>>
>> The userspace notification Xtables target sends a netlink notification
>> whenever a packet hits the target. Notifications have a label attribute
>> for userspace to match it against a previously set rule. The rules also
>> take a --all option to switch between sending a notification for all
>> packets or for the first one only.
>> Userspace can also send a netlink message to toggle this switch while the
>> target is in place. This target uses the nefilter netlink framework.
>>
>> This target combined with various matches (quota, rateest, etc..) allows
>> userspace to make decisions on interfaces handling. One could for example
>> decide to switch between power saving modes depending on estimated rate
>> thresholds.
>>
>
> It much like the following iptables rules.
>
> iptables -N log_and_drop
> iptables -A log_and_drop -j NFLOG --nflog-group 1 --nflog-prefix "log_and_drop"
> iptables -A log_and_drop -j DROP
>
> ...
> iptables ... -m quota --quota-bytes 20000 -j log_and_drop
> ...
Indeed, this looks to me like something that you can do with NFLOG and
some combination of matches.
next prev parent reply other threads:[~2010-07-13 8:50 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-13 0:11 [PATCH] netfilter: xtables: userspace notification target Samuel Ortiz
2010-07-13 5:56 ` Jan Engelhardt
2010-07-13 13:19 ` Samuel Ortiz
2010-07-13 6:18 ` Changli Gao
2010-07-13 8:50 ` Pablo Neira Ayuso [this message]
2010-07-13 10:23 ` Luciano Coelho
2010-07-13 11:49 ` Jan Engelhardt
2010-07-13 13:24 ` Luciano Coelho
2010-07-13 16:38 ` Pablo Neira Ayuso
2010-07-14 11:48 ` Patrick McHardy
2010-07-14 12:22 ` Luciano Coelho
2010-07-14 16:34 ` Pablo Neira Ayuso
2010-07-15 9:05 ` Patrick McHardy
2010-07-15 9:18 ` Luciano Coelho
2010-07-13 13:28 ` Samuel Ortiz
2010-07-13 14:57 ` [PATCH v2] " Samuel Ortiz
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