* how do i get a packets contents from using printks
@ 2002-05-13 14:03 william fitzgerald
2002-05-13 18:32 ` blitzkrieg
0 siblings, 1 reply; 2+ messages in thread
From: william fitzgerald @ 2002-05-13 14:03 UTC (permalink / raw)
To: linux-c-programming
hi all,
i have inserted printk statements into a 2.4.14
kernel in the networking code and want to trace a
packet through the kerenl.
i have being able to record a particular sk_buff
by for example:
printk(KERN_DEBUG"ip_forwrd(sk_buff %P)-> entry
point",skb);
but how do i extract the packets headers etc from
the sk_buff?
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: how do i get a packets contents from using printks
2002-05-13 14:03 how do i get a packets contents from using printks william fitzgerald
@ 2002-05-13 18:32 ` blitzkrieg
0 siblings, 0 replies; 2+ messages in thread
From: blitzkrieg @ 2002-05-13 18:32 UTC (permalink / raw)
To: william fitzgerald; +Cc: linux-c-programming
On Mon, May 13, 2002 at 03:03:17PM +0100, william fitzgerald wrote:
> printk(KERN_DEBUG"ip_forwrd(sk_buff %P)-> entry
> point",skb);
>
> but how do i extract the packets headers etc from
> the sk_buff?
Check the definition of struct sk_buff in linux/skbuff.h, check also
linux/ip.h, linux/tcp.h and so on... depends which headers you want to
know.
bye bye
-b
--
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