From: Frank Schaefer <frank.schafer@setuza.cz>
To: linux-kernel@vger.kernel.org
Subject: Re: tcp/ip stack in user space
Date: 17 Apr 2002 09:51:43 +0200 [thread overview]
Message-ID: <1019029903.383.6.camel@ADMIN> (raw)
In-Reply-To: <20020416185419.52395.qmail@web13208.mail.yahoo.com>
On Tue, 2002-04-16 at 20:54, X.Xiao wrote:
> i want to move tcp/ip stack(including routing and
> netfilter) to userspace, my goal is to trace all the
> instructions involved in a firewall and router since i
> don't know how to trace these instructions inside the
> kernel. i want to get something like:
>
> incoming ip packets(a file)-->fake ISR-->tcp/ip
> stack-->outgoing ip packets( to /dev/null).
>
> my question is: is it possible and relatively easy to
> move tcp/ip stack to user space?
Hi,
Eric is right, I've started a syncookie fw using a daemon process for
now, because this is the first time I meet the kernel sources on a
larger project.
I do this using the REDIRECT ( ipchains ) / QUEUE ( ipfilter ) targets,
to get the packets to userspace. Once there, you can do what you want
using libpcap or syuscalls.
Regards and hope this helps
Frank
> Do You Yahoo!?
prev parent reply other threads:[~2002-04-17 7:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-16 18:54 tcp/ip stack in user space X.Xiao
2002-04-16 20:00 ` tcp/ip stack in user space (possible FAQ addition?) Eric Weigle
2002-04-17 7:51 ` Frank Schaefer [this message]
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