Re: GNU Mach interface to packet filters

[Richard Braun]

On Wed, Apr 19, 2006 at 04:32:57PM +0200, Marco Gerards wrote:
> Richard Braun <syn@hurdfr.org> writes:
> > Here is the NETF filter that would be used in pfinet :
> > static short ether_filter[] =
> > {
> >   NETF_IN, /* header */
> >   NETF_PUSHLIT | NETF_NOP,
> >   1
> > };
> 
> Is it possible to move NETF_IN to the end of the struct?  Would that
> mean the interface change would not break existing code?

It would be possible, yes, but harder to do and not really conforming with
the idea of a header. As struct net_rcv_msg has been modified, binary
compatibility is broken. You need at least to rebuild pfinet. So why not
integrate this patch as well ? One line for a header is no real pain.

-- 
Richard Braun

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