> On 23 May 2023, at 17:40, Claudio Jeker <cje...@diehard.n-r-g.com> wrote:
>
> On Tue, May 23, 2023 at 07:09:51AM -0000, Stuart Henderson wrote:
>> On 2023-05-23, David Gwynne <da...@gwynne.id.au> wrote:
>>> On Sat, May 20, 2023 at 09:44:51AM +0200, Holger Glaess wrote:
>>>> hi
>>>>
>>>>
>>>> looks like that the patch works , but should not print "tunneldomain"
>>>> instead of "rdomain" ?
>>>
>>> that's an interesting question.
>>>
>>> ifconfig does not aim to produce output that can then be used as input
>>> for ifconfig again. printing it as rdomain is at least consistent with
>>> how it's printed on the tunnel: line for things like etherip and gif,
>>> and i guess the assumption is you can figure out that it's tunneldomain
>>> from the context.
>>
>> things are a bit inconsistent here - doesn't this actually take an rtable
>> not an rdomain? (wg uses and prints "wgrtable" for what I think is the
>> equivalent thing).
>
> I think this is a general issue with tunneldomain. It should be
> tunneltable since it used for two things. The route lookup of the tunnel
> endpoints and to alter the mbufs rdomain on encapsulation / decapsulation.
> At least in theory this is how it should work but someone needs to verify
> that all drivers really behave like this.
ifconfig drv0 rdomain specifies which rdomain and send packets into the
interface, and which rdomain the packets coming out of the interface will use.
this is the same on all interfaces whether they're tunnels or not.
ifconfig drv0 tunneldomain specifies the rdomain that the encapsulated packets
operate in.
rdomain and tunneldomain (if supported) are always in effect and in the same
way. packets sent from an rdomain out a tunnel will get the tunnel headers
added to the packet and the rdomain rewritten to the tunneldomain value (which
could be 0). encapsulated packets from the remote tunnel endpoint have to match
the tunneldomain before the tunnel interface will match them and decapsulate
them, and once they're decapsulated the rdomain on the packet is set to the
interface rdomain value.
dlg
>
> --
> :wq Claudio
>
