[systemd-devel] [PATCH] resolved: re-add support for getting local domain from DHCP

[Tom Gundersen]

On Thu, Aug 14, 2014 at 1:11 PM, Lennart Poettering
<lennart at poettering.net> wrote:
>
> UseDomain= should have the effect of adding the domains from dhcp option
> 15 and 119 to the list of domains for the interface. And
> sd_network_get_link_domains() should then return a single list, of
> deduplicated entries, with the domains specified in Domains= first, and
> then the dhcp domains possible added in at the end.
>
> Zbigniew, I think this simplification would be beneficial, as I really
> don't see the need to make the search vs. route domain thing
> configurable....
>
> Tom, what's your take on all of this?


Sorry for taking forever to answer to this thread. I have been going
back and forth in my mind about how this should look.

I think in the end I essentially agree with Lennart's last suggestion.
Let's make this dead-simple and collapse the search/route domains for
each link into a single list. I think this is fine given that we
restrict the search behaviour to single-labels.

My only hesitation has been that I can imagine someone wanting to add
search domains that do not imply anything about routing. However, I
think in this case it does not make much sense to make this per-link,
but it should rather be a global SearchDomains= option (in
resolved.conf) or something to that effect.

Zbigniew, Michael, what do you think?

Cheers,

Tom