Re: Bind to protocol with AF_PACKET doesn't work for outgoing packets

[Andi Kleen]

On Thu, Nov 01, 2001 at 09:56:34PM +0300, A.N.Kuznetsov wrote:
> Hello!
> 
> > When you e.g. have a TCP sniffer it makes sense to only bind it to ETH_P_IP.
> 
> For what purpose? To add a small underdeveloped copy of BPF?

Just to have an symmetric API. Everything else is too ugly to explain 
in manpages ;)

> To summarize: I wanted to see a patch allowing to detect that
> nobody listens on outpu (or even splitting input and output ptype_all.)

That would require changing/breaking PF_PACKET, no? 

-Andi