[RFC] Fixing the machine id

[Michael Biebl]

2011/3/5 Marcel Holtmann <marcel at holtmann.org>:
> Hi Lennart,
>
>> With this in place there's very little left which stops us from spawning
>> D-Bus already during early boot: the system bus activation needs to be
>> moved to /usr. Or alternatively we just give up officialyl on seperate
>> /usr, in which case we don't need to. I'd be very much in favour of
>> that, but you know the politics. The bigger problem is of course the
>> system bus socket, which is in /var/run/dbus/. But we probably could
>> move that to an abstract socket or one in /dev/.dbus, relatively
>> easily.
>
> using the abstract socket is bad for security since you have no
> permission checks anymore. And essentially anybody could start owning
> that socket. You do not really want that.
>
> Also the system socket address is pretty much hardcoded. At least when I
> looked through that a few weeks ago. And then changing the address
> becomes quickly big trouble. Only advantage with systemd would be that
> you can easily set an environment variable for every process. So it
> might work out for you. In general it is a big mess.

Given that systemd mounts a tmpfs on /var/run very early during boot,
is there actually need to change the location of the socket?
Which (D-Bus) service would you want to start before /var/run is writable?

Michael


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