IPv4-Mapped IPv6 Address used in DNS with AAAA-records

[Gert Doering]

Hi,

On Fri, Jul 28, 2023 at 04:27:21PM +0200, Jeroen Massar wrote:
> > On 28 Jul 2023, at 15:56, Gert Doering <gert at space.net> wrote:
> [..]
> > (*) OpenVPN ran into this in many interesting ways, with replies like
> > "oh we just forgot to implement this particular edge case" from kernel
> > developers...  in retrospective, we should all have followed the OpenBSD
> > approach to make v6-sockets v6, and v4-sockets v4, and disallow any
> > mixing.
> 
> The reason for existence of that [..]

Oh, I do fully understand how we got there, and for OpenVPN, this means
we can still slack along without implementing proper multi-socket support
(pointing to kernel folks instead, and complaining about missing kernel
code paths...).

But as I said, in retrospective, code would be better if we had never
taken that shortcut - less rarely-used kernel code (which is never good),
and possibly even better socket APIs in userland to just take care of all
this sh*t...

gert
-- 
have you enabled IPv6 on something today...?

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