[Buildroot] [PATCH v2] package/dbusbroker: new package

[Yann E. MORIN <yann.morin.1998@free.fr>]

Norbert, All,

On 2020-06-14 23:30 +0200, Norbert Lange spake thusly:
> Am So., 14. Juni 2020 um 15:10 Uhr schrieb Yann E. MORIN
> <yann.morin.1998@free.fr>:
[--SNIP--]
> > So you are very welcome to have re-spun this new iteration. :-)
> As said, I have trouble with the ML flow, seems like the commit should then
> include the whole discussion as otherwise no one is able to follow?

I guess that's what the post-commit history (all that is after the ---
line) is for: keep a track of the changes between the various iteration
of a patch (if I understood your isue correctly).

[--SNIP--]
> > OK, I knew that would have been systemd doing the uid-drop, by I'd still
> > like the info appear somewhere (so that we do not later question this in
> > light of the original dbus package which defines one).
> Not sure if we got some communication issues. The setting does
> something (drop privileges),
> while I originally considered the launcher ignoring the Xml key.
> I guess you could tweak the systemd service to use a Dynamic user,
> but I won't touch that for now.

So I did some testing:

  - without the <user> entry in system.conf, the launcher and the
    message bus are running as root.

  - with a <user> entry in system.conf (and the correct user in
    /etc/passwd and /etc/group), the launcher and the message bus are
    running as non-root with the specified user, and systemd is working
    happily.

So, I would like we do use a non-root user for dbus-broker, like we do
for the original dbus.

I'll add that when I re-submit later tonight.

[--SNIP--]
> > And explain in the commit log that the launcher needs systemd, and that
> > without the launcher there is no point in dbus-broker.
> Seems to be the best option for now IMHO. Revisit the launcher-less option
> once you have something to test.

Agreed.

[--SNIP--]
> dbus/broker should be enabled by default with systemd, but with some way
> that the user still can disable those. Dunno what's the correct to do
> this in buildroot,
> add a line to dbus  'default y if BR2_PACKAGE_SYSTEMD'?

We can revisit that in a later patch (I've seen and started to apply
your otehr series, which conclusion is to indeed drop the dbus
requirement; let's see that happen there, not here).

[--SNIP--]
> > If you agree, then I'll try to merge your new submission with your
> > comments into my series and re-spin it soon-ish, if that's OK with you.
> You doing the work, and I get to nag? Deal ;)

My pleasure! ;-)

Thanks for the discusion and the explanations. New iteration pending by
the end of the day (hopefully).

Regards,
Yann E. MORIN.

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