dhcpcd-discuss

Hi Hanno

On 01/12/2020 22:34, Hanno Zysik wrote:
> Am Tue, 1 Dec 2020 13:07:37 +0000
> schrieb Roy Marples <roy@xxxxxxxxxxxx>:
>
> > If you appy the patch to dhcpcd-ui, what do you see?
> > At every attempt to read an interface it will say something.
>
> There is not much, sadly.

But it does answer why it happens :)

> $ dhcpcd-online
> dhcpcd-online: opened
> libdhcpcd: read interface eth0:NOCARRIER
> libdhcpcd: read interface wlan0:CARRIER
> libdhcpcd: read interface wlan0:BOUND
> libdhcpcd: read interface wlan0:ROUTERADVERT
> libdhcpcd: error reading if: Operation not supporteddhcpcd-online: connected

So the error happens right after reading wlan0:ROUTERADVERT

> reason=ROUTERADVERT
> interface=wlan0
> protocol=ra
> nd1_from=...
> nd1_acquired=4983
> nd1_now=5247
> nd1_hoplimit=255
> nd1_flags=O
> nd1_lifetime=1800
> nd1_prefix_information1_length=64
> nd1_prefix_information1_flags=LA
> nd1_prefix_information1_vltime=7200
> nd1_prefix_information1_pltime=1800
> nd1_prefix_information1_prefix=...
> nd1_rdnss1_lifetime=1200
> nd1_rdnss1_servers=...
> nd1_mtu=1492
> nd1_source_address=444e6dc7b900
> nd1_addr1=...
>
> reason=INFORM6
> interface=wlan0
> protocol=dhcp6
> dhcp6_client_id=0004655bfa80127300000000000000000000
> dhcp6_server_id=00030001444e6dc7b900
> dhcp6_sol_max_rt=3600
> dhcp6_inf_max_rt=3600
> dhcp6_name_servers=...

And libdhcpcd won't create an interface for INFORM6!

Sorry for me being so dense, patch here with supporting commentary:
https://roy.marples.name/cgit/dhcpcd-ui.git/commit/src/libdhcpcd/dhcpcd.c?id=866b0d71a3483c03b30c03d0e3a6aeff44f4ae6a

Roy