From: Brian Haley <brian.haley@hp.com>
To: Balazs Scheidler <bazsi@balabit.hu>
Cc: netfilter-devel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH 13/13] TProxy: use the interface primary IP address as a default value for --on-ip
Date: Mon, 28 Sep 2009 12:16:10 -0400 [thread overview]
Message-ID: <4AC0E14A.10108@hp.com> (raw)
In-Reply-To: <1253902068.10105.1.camel@bzorp.balabit>
Balazs Scheidler wrote:
> One question, how fast is ipv6_dev_get_saddr()? Since the TPROXY target
> can execute on a per-packet path (although the socket match should take
> care of packets that belong to already-established connections), this
> may be performance critical. Is ipv6_dev_get_saddr() something that I
> can call so often?
It probably isn't the best thing to be calling on a per-packet basis, it's
mainly called now on a per-connection basis. I guess if it's really bad
for you we could do something like ipv6_get_lladdr() does for finding
a link-local address, it might be good enough in this case.
-Brian
prev parent reply other threads:[~2009-09-28 16:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-21 14:46 [PATCH 13/13] TProxy: use the interface primary IP address as a default value for --on-ip Balazs Scheidler
2009-09-21 18:00 ` Brian Haley
2009-09-22 6:38 ` Balazs Scheidler
2009-09-22 14:17 ` Brian Haley
2009-09-25 18:07 ` Balazs Scheidler
2009-09-28 16:16 ` Brian Haley [this message]
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