HELP ipt_hook: happy cracking message

HELP ipt_hook: happy cracking message

[Parag Nemade]

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hi,
        i modified kernel so that it will create
/proc/net/myproc file entry.
the function of this entry is to crate a 16 byte char
string from random no.s
i used net_srandom and net_random and sys_time for
that puspose. the problem is that i write program to
generate string after 120 seconds but it is changing
contents of myproc file every seconds. what can i do?
 Also i am getting ipt_hook: happy cracking. message
again and again why?
regards,
parag.


	
		
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Re: HELP ipt_hook: happy cracking message

[Rusty Russell]

On Tue, 2004-04-27 at 01:12, Parag Nemade wrote:
> hi,
>         i modified kernel so that it will create
> /proc/net/myproc file entry.
> the function of this entry is to crate a 16 byte char
> string from random no.s
> i used net_srandom and net_random and sys_time for
> that puspose. the problem is that i write program to
> generate string after 120 seconds but it is changing
> contents of myproc file every seconds. what can i do?
>  Also i am getting ipt_hook: happy cracking. message
> again and again why?

You're sending out IP packets which don't even contain the IP header,
and you're running connection tracking or some filtering.

The message is not serious.

Rusty.
-- 
Anyone who quotes me in their signature is an idiot -- Rusty Russell

Re: HELP ipt_hook: happy cracking message

[Willy Tarreau]

On Mon, Apr 26, 2004 at 08:12:20AM -0700, Parag Nemade wrote:
> hi,
>         i modified kernel so that it will create
> /proc/net/myproc file entry.
> the function of this entry is to crate a 16 byte char
> string from random no.s
> i used net_srandom and net_random and sys_time for
> that puspose. the problem is that i write program to
> generate string after 120 seconds but it is changing
> contents of myproc file every seconds. what can i do?

may be you're sleeping for 120 instead of 120*HZ, which
means you're really sleeping 1.2s on x86.

>  Also i am getting ipt_hook: happy cracking. message
> again and again why?

iptable_mangle.c comment reads 'root is playing with
raw sockets' above this message. It means that you're
sending too short IP packets (len < 20 bytes) or packets
with the IHL field < 5. It's just a harmless message.

Regards,
Willy