Re: Help with ulog!!

Op ma, 12-09-2005 te 22:25 +0400, schreef ramsurrunv-aD7nsNzqxXzCK/[email protected]:
> >> 2) ebtables -A OUTPUT -p IPv4 -j ACCEPT
> >>    ebtables -A OUTPUT -p IPv4 --ulog-nlgroup 5 -j ACCEPT
> Dear Bart,
> 
> thx for the reply..
> 
> If I understand well, it means that if both rules accept the packet, one
> packet is sent out of the interface and a copy of the packet is sent to
> the userspace program.
> 
> One thing more..i found the test_ulog.c program. If I want just to execute
> sth like:
> 
> printf("Hey it's an IP packet!!);
> pck_count+=1;

You don't need to know network programming to read C code.

Try adding something like this:

if (ehdr->h_proto == htons(ETH_P_IP))
	printf("Hey it's an IP packet!!);




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