[maybe spam] Re: linux PF_PACKET compatibility

[Da Rock]

On 02/12/11 19:39, Gary Jennejohn wrote:
> On Fri, 11 Feb 2011 17:19:17 -0800
> Julian Elischer<julian at freebsd.org>  wrote:
>
>    
>> On 2/11/11 4:03 PM, Da Rock wrote:
>>      
>>> Unfortunately this software uses this family instead of pcap or bpf.
>>> So when built it errors.
>>>
>>> I guess if I am to use this app I will have to rewrite the way it
>>> uses the network stack.
>>>        
>> l2tp runs over UDP packets  (port 1701 (like the starship enterprise))
>> I have no idea why they want raw packets.
>>
>>      
> Ther's a sendarp() routine which uses PF_PACKET to directly access the
> network driver and bypass the stack.  Lazy Linuxers who have no idea
> or don't care that other operating systems exist.
>
>    
Indeed. Is it possible to leverage another compatible routine? I haven't 
had a look yet as I just read the message, but can I (after checking 
return values and arguments) just drop in another arp routine? Or are 
they simply incompatible across the board?

 From what I understand they should all be essentially doing the same 
thing, but I could be wrong on this. Alternatively would I have to 
basically rewrite the arp.c to be posix compatible (for portability)?

Cheers