Re: [PATCH net] bareudp: forbid mixing IP and MPLS in multiproto mode

2020-07-25 Thread Guillaume Nault
On Fri, Jul 24, 2020 at 04:21:34PM -0700, Jakub Kicinski wrote: > On Fri, 24 Jul 2020 23:03:26 +0200 Guillaume Nault wrote: > > In multiproto mode, bareudp_xmit() accepts sending multicast MPLS and > > IPv6 packets regardless of the bareudp ethertype. In practice, this > > let an IP tunnel send mul

Re: [PATCH net] bareudp: forbid mixing IP and MPLS in multiproto mode

2020-07-24 Thread Jakub Kicinski
On Fri, 24 Jul 2020 23:03:26 +0200 Guillaume Nault wrote: > In multiproto mode, bareudp_xmit() accepts sending multicast MPLS and > IPv6 packets regardless of the bareudp ethertype. In practice, this > let an IP tunnel send multicast MPLS packets, or an MPLS tunnel send > IPv6 packets. > > We need

[PATCH net] bareudp: forbid mixing IP and MPLS in multiproto mode

2020-07-24 Thread Guillaume Nault
In multiproto mode, bareudp_xmit() accepts sending multicast MPLS and IPv6 packets regardless of the bareudp ethertype. In practice, this let an IP tunnel send multicast MPLS packets, or an MPLS tunnel send IPv6 packets. We need to restrict the test further, so that the multiproto mode only enable