sk_buff question

sk_buff question

[Emmanuel Varagnat]

I need to had a header to the data in the sk_buff.
But what to do if there is no enough space left at the head ?
I saw skb_copy_expand, but it gives me a new sk_buff. Is there
a way to expand the headroom and keep the pointer on the sk_buff ?

Thanks

-Manu

Re: sk_buff question

[Francois Romieu]

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Emmanuel Varagnat <varagnat@crm.mot.com> écrit :
> I need to had a header to the data in the sk_buff.
> But what to do if there is no enough space left at the head ?

I assume "alloc+copy" isn't the expected answer, is it ?

> I saw skb_copy_expand, but it gives me a new sk_buff. Is there
> a way to expand the headroom and keep the pointer on the sk_buff ?

pskb_expand_head maybe.

-- 
Ueimor