From: Olaf Dietsche <olaf+list.linux-kernel@olafdietsche.de>
To: Manjunath Prabhu <manjunath.mp@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: modify tcp header in the kernel
Date: Sat, 24 Jul 2004 12:41:59 +0200 [thread overview]
Message-ID: <87fz7h7klk.fsf@goat.bogus.local> (raw)
In-Reply-To: <2de46576040724030153d7877@mail.gmail.com> (Manjunath Prabhu's message of "Sat, 24 Jul 2004 15:31:01 +0530")
Manjunath Prabhu <manjunath.mp@gmail.com> writes:
> i am using the debian linux and am working on the 2.6.6 kernel.
> i want to access the tcp header, modify it (by passing it through my
> function) and then
> put it back for the regular flow to continue.
> can somebody tell me where i can access TCP header....
> this is what i think should be done.
>
> 1.will using (struct sk_buff*)skb->h.th be sufficient
> 2.using hook to divert the regular flow.
> 3.passing it to my function.
> 4.putting it back.
Maybe iptables is what you're searching for.
Another possibility would be Linux socket filtering. A short
description is in: Documentation/networking/filter.txt
Regards, Olaf.
prev parent reply other threads:[~2004-07-24 10:42 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-24 10:01 modify tcp header in the kernel Manjunath Prabhu
2004-07-24 10:41 ` Olaf Dietsche [this message]
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