* how to replace a skb in NF_IP_LOCAL_OUT hook
@ 2005-11-04 0:20 jywang
0 siblings, 0 replies; 2+ messages in thread
From: jywang @ 2005-11-04 0:20 UTC (permalink / raw)
To: linux-c-programming
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.
^ permalink raw reply [flat|nested] 2+ messages in thread
* how to replace a skb in NF_IP_LOCAL_OUT hook
@ 2005-11-04 0:27 jywang
0 siblings, 0 replies; 2+ messages in thread
From: jywang @ 2005-11-04 0:27 UTC (permalink / raw)
To: linux-c-programming
> 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.
^ permalink raw reply [flat|nested] 2+ messages in thread
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