From: Patrick McHardy <kaber@trash.net>
To: Jan Engelhardt <jengelh@medozas.de>
Cc: "Maciej Żenczykowski" <zenczykowski@gmail.com>,
"Ed W" <lists@wildgooses.com>,
netfilter-devel@vger.kernel.org
Subject: Re: Performance issue due to constant "modprobes"
Date: Mon, 18 Apr 2011 15:38:48 +0200 [thread overview]
Message-ID: <4DAC3EE8.5090507@trash.net> (raw)
In-Reply-To: <alpine.LNX.2.01.1104140919000.28694@obet.zrqbmnf.qr>
Am 14.04.2011 09:19, schrieb Jan Engelhardt:
> On Thursday 2011-04-14 09:13, Maciej Żenczykowski wrote:
>
>> Note that: -M '' is -M followed by a space and two single quotes.
>>
>> Furthermore, note that with -M '', you will want to modprobe ip_tables
>> or modprobe ip6_tables manually first at system startup (or build them
>> into the kernel), since those modules don't autoload (hence why
>> iptables tries to load them).
>>
>> I wonder if there's an easy way iptables userspace could detect
>> whether these modules are already loaded (or compiled into the
>> kernel), and not even try to load them, if so...
>
> Not with the socket interface, but it's on the plate for netlink-based
> Xtables.
We do have the /proc/net/ip_tables_{names,matches,targets} files
which should be usable for this.
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next prev parent reply other threads:[~2011-04-18 13:38 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-07 23:16 Performance issue due to constant "modprobes" Ed W
2011-04-08 0:18 ` Jan Engelhardt
2011-04-08 17:11 ` Ed W
2011-04-08 0:47 ` Maciej Żenczykowski
2011-04-08 17:11 ` Ed W
2011-04-08 19:54 ` Jan Engelhardt
2011-04-08 23:22 ` Ed W
2011-04-08 23:42 ` Jan Engelhardt
2011-04-09 20:39 ` Ed W
2011-04-09 22:30 ` Jan Engelhardt
2011-04-12 21:03 ` Ed W
2011-04-12 22:05 ` Jan Engelhardt
2011-04-13 11:08 ` Ed W
2011-04-13 12:06 ` Jan Engelhardt
2011-04-13 9:10 ` Maciej Żenczykowski
2011-04-13 11:35 ` Ed W
2011-04-13 12:13 ` Jan Engelhardt
2011-04-13 12:35 ` Ed W
2011-04-13 12:45 ` Jan Engelhardt
2011-04-13 16:45 ` Ed W
2011-04-13 19:20 ` Mr Dash Four
2011-04-14 7:07 ` Maciej Żenczykowski
2011-04-14 7:13 ` Maciej Żenczykowski
2011-04-14 7:19 ` Jan Engelhardt
2011-04-18 13:38 ` Patrick McHardy [this message]
2011-04-18 16:33 ` Ed W
2011-04-19 1:12 ` Maciej Żenczykowski
2011-04-19 9:03 ` Maciej Żenczykowski
2011-04-19 16:10 ` Ed W
2011-04-20 1:26 ` Maciej Żenczykowski
2011-04-20 6:41 ` Maciej Żenczykowski
2011-04-20 7:31 ` Jozsef Kadlecsik
2011-04-20 8:54 ` Ed W
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