ECMP/multipath support

[Joakim Tjernlund]

Ondrej Zajicek <santiago at crfreenet.org> wrote on 2010/12/28 01:49:58:
>
> On Mon, Dec 27, 2010 at 08:06:17PM +0100, Joakim Tjernlund wrote:
> > > > > Other packets are sent to the neighbor IP address, which is a slight
> > > > > diversion from RFC 2328, but should not cause any problems.
> > > >
> > > > But a stricter router may reject OSPF msg over an ptp links if
> > > > they aren't addressed to AllSPFRouters.
> > >
> > > I just noticed you impl. a PTMP I/F type, nice :)
> >
> > I updated to new nexhp calc. patch to match your latest
> > changes. I hope you like it.
>
> I already done that, just didn't commited it yet, sorry.
> Now it is merged (after some rework and extending).

Right, some comments:

- px_pos* is redundant. Just use rt_pos* for both V4 and V6.
- You can use u16 instead of s16, just in case you get a lot of I/Fs :)
  (use ~0 instead of -1 were needed)