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Re: skbuff

Look at http://www.linuxdoc.org/LDP/tlk/net/net.html (Section 10.5) for a 
good explanation with pictures :)

On Mon, 18 Feb 2002, Geetha wrote:

> Hi,
> unsigned char *head
>  unsigned char *data
> unsigned char *tail
> unsigned char *end
> 
> head points to the beginning of the allocated space, data is the beginning
> of the valid octets( usually slightly greater than head ), tail is the end
> of the valid octets and end points to the address tail can reach.
> 
>   Another way to look available buffer space is
>      skb->end - skb->head
> 
>   and currently used data space is
>     skb->tail - skb->data
> 
>  So the length of the data itself (skb->tail - skb->data).
> 
> 
> Geetha

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