Re: skbuff

[mohan kumar <mohan_knb@yahoo.com>]

--- Lisa & Eric Malkowski <malk@charter.net> wrote:
> A good place to start is in Alessandro Rubini's book
> Linux Device
> Drivers 

i will do that
 
> Paul Russell's book on the kernel API has some nice
> descriptions about

i did that already

> 
> Then consider taking a look at some of the simpler
> network device
> drivers.  i.e. the loopback device, dummy device.  I
> also found the
> tunneling network drivers like ip/ip helped to
> understand the
> manipulation of skbuffs.  These are in
> /usr/src/linux/drivers/net and
> /usr/src/linux/net/ipv4 respectively.

i will do that too..

but let me get my problem straight.
i got a module that registers itself and gets a skbuff
pointer. The problem is when a packet arrives and i
try to parse through the data between skb->data and
skb->tail pointers, and i get...im not kidding...whole
of the ASCII in ascending order.
now, i have a doubt weather just copying data between
skb->data and skb->tail pointers gives me a copy of
the packet raw data.
am i correct or have i got it all wrong?

thanx for the help,
Mohan S


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