[Gllug] alternative to ETH_P_ALL

Ian Norton bredroll at darkspace.org.uk
Sun Nov 14 22:20:45 UTC 2004


On Sat, Nov 13, 2004 at 12:15:26PM +0000, Tethys wrote:
> 
> "Ian Norton" writes:
> 
> >> When I say 'munge' I mean I want to change the content of packet
> > payloads, basically implementing a new protocol at the same layer as
> > TCP/UDP/ICMP etc. And I'm doing this in kernel space.
> 
> Just curious... why? What is it that you're hoping to achieve that
> the existing protocols don't give you?

Nothing new, just working on an alternative implementation of IPcomp (RFC3173) 
for a university assignment,

I have to do it for the 2.4 series without patching existing kernel code. Im
looking at different entry points for the code, using the usual dev_add_pack()
with ETH_P_IP apparently was a good point for things like this pre 2.4 but now
it looks better to use the netfilter hooks to do this, 

Ian

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