Re: [net] vxlan: fix vxlan6_get_route() adding a call to xfrm_lookup_route()

From: Andrea Mayer
Date: Mon Jan 20 2020 - 11:02:46 EST


On Thu, 16 Jan 2020 14:28:39 +0100
Andrea Mayer <andrea.mayer@xxxxxxxxxxx> wrote:

> On Wed, 15 Jan 2020 22:16:21 +0100
> Sabrina Dubroca <sd@xxxxxxxxxxxxxxx> wrote:
>
> > 2020-01-15, 20:22:31 +0100, Andrea Mayer wrote:
> > > currently IPSEC cannot be used to encrypt/decrypt IPv6 vxlan traffic.
> > > The problem is that the vxlan module uses the vxlan6_get_route()
> > > function to find out the route for transmitting an IPv6 packet, which in
> > > turn uses ip6_dst_lookup() available in ip6_output.c.
> > > Unfortunately ip6_dst_lookup() does not perform any xfrm route lookup,
> > > so the xfrm framework cannot be used with vxlan6.
> >
> > That's not the case anymore, since commit 6c8991f41546 ("net:
> > ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup").
> >
> > Can you retest on the latest net tree?
> >
> > Thanks.
> >
> > --
> > Sabrina
> >
>
> Hi Sabrina,
> thanks for sharing the fix.
> Sorry, my net tree was a bit outdated. I will retest with the fix and let you know.
>
> --
> Andrea Mayer <andrea.mayer@xxxxxxxxxxx>

Hi,
I've tested the new net tree in my setup and now vxlan6 and IPSec seems to work good.

Thanks.

--
Andrea Mayer <andrea.mayer@xxxxxxxxxxx>