* modify tcp header in the kernel
@ 2004-07-24 10:01 Manjunath Prabhu
2004-07-24 10:41 ` Olaf Dietsche
0 siblings, 1 reply; 2+ messages in thread
From: Manjunath Prabhu @ 2004-07-24 10:01 UTC (permalink / raw)
To: linux-kernel
hi,
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.
am i right???
-best regards,
manjunath
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: modify tcp header in the kernel
2004-07-24 10:01 modify tcp header in the kernel Manjunath Prabhu
@ 2004-07-24 10:41 ` Olaf Dietsche
0 siblings, 0 replies; 2+ messages in thread
From: Olaf Dietsche @ 2004-07-24 10:41 UTC (permalink / raw)
To: Manjunath Prabhu; +Cc: linux-kernel
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.
^ permalink raw reply [flat|nested] 2+ messages in thread
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