From mboxrd@z Thu Jan  1 00:00:00 1970
From: "jywang" <jywang@cnic.cn>
Subject: how to replace a skb in NF_IP_LOCAL_OUT hook
Date: Fri, 4 Nov 2005 08:20:10 +0800
Message-ID: <006101c5e0d5$84c13e80$060ae29f@javaboy>
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This question belongs on the developer list I think.

On Wed, 2 Nov 2005, jywang wrote:

> i want to replace the skb with my own, and in my skb i will change the
data
> in it.
>
> How to do it?
>
> what i do as below:
>
> cp = skb_copy_expand(*skb, skb_headroom(*skb)+12, skb_tailroom(*skb),
GFP_ATOMIC);
> //change the skb->data here
> skb_set_owner_w(cp, (*skb)->sk);
> *skb = cp;
> return NF_ACCEPT;
>
> but, it can't work.