Re: AUTOCONF4 flag

Thanks for clearing this up.

Peter

On 5/1/21 5:08 PM, Theo de Raadt wrote:
> Peter Wens <peter@wenka.nl> wrote:
>
>> Hi,
>>
>> In OpenSBD 6.9 the AUTOCONF4 flag is not set
>> with 'dhcp' set in hostname.if (from fresh install)
>
> You have described this incorrectly. In 6.8, choosing "dhcp" would run
> dhclient(8) in that interfaces, and dhclient would set the AUTOCONF4 flag.
> That was incorrect. AUTOCONF4 is supposed to work like AUTOCONF6.
>
> These are per-interface flags which indicate a request: "Someone please
> go get us a dynamic address". dhclient incorrectly believed the flag
> meant "I have gotten a dynamic address"
>
>> If 'autoconf' instead of 'dhcp' is used with dhcpleased
>> the flag is set.
>>
>> Is this intentional in 6.9?
>
> Yes, it is intentional.
>
> In 6.9:
>
> 1) 'autoconf' is to instruct dhcpleased(8), to do dhcp lease-learning, then
> dhcpleased(8) will communicate learned DNS configuration via
> route-socket to resolvd(8), which will make changes to /etc/resolv.conf
>
> 2) 'dhcp' runs a per-interface dhclient(8) which will manage /etc/resolv.conf
>
> The two dhcp modes of operation are incompatible.
>
> By 7.0 we hope to switch to the model described in (1), because this
> allows resolvd(8) to blend DNS configuration from multiple sources into
> /etc/resolv.conf, rather than havine one per-interface daemon smashing
> the file.
>
>
>