Re: RFC 4833 / TimeZone by DHCP

[Dan Williams <dcbw redhat com>]

On Mon, 2007-12-03 at 18:23 -0500, JP Rosevear wrote:
> On Mon, 2007-12-03 at 09:38 -0500, Dan Williams wrote:
> > On Mon, 2007-12-03 at 16:07 +0200, Tambet Ingo wrote:
> > > On Dec 3, 2007 11:06 AM, Dominique Leuenberger
> > > <Dominique Leuenberger tmf-group com> wrote:
> > > > As an international traveling user (mostly inside our company) I would like very much to have the ability to have an accurate, local time on my system wherever I am.
> > > > RFC 4833 aims directly at this and allows network administrators to push out via DHCP the current time zone (which can easily configured).
> > > >
> > > > Would it be possible to implement this into our NM?
> > > 
> > > NM just gained the ability to support static routes from DHCP
> > > (http://mail.gnome.org/archives/networkmanager-list/2007-November/msg00173.html),
> > > if anyone's interested in adding time zone support, using that patch
> > > as a template should make it pretty easy. The only tricky part may be
> > > the actual setting of the time zone in such a way that it would work
> > > on all distros.
> > 
> > Although, I don't want to stuff every option for things like this into
> > NM.  Since obsoleting dhcdbd, what I'd like to see is this:
> > 
> > a) NM exports a D-Bus interface (the most likely object for this is the
> > Connection that just got activated) that allows things to query the DHCP
> > information.  This interface sends out signals when the DHCP information
> > is cleared/updated/etc
> > 
> > b) NetworkManagerDispatcher listens for these signals and executes
> > scripts to do things with them, or something like that.
> 
> Or the international clock listens and makes the change since it knows
> how to do that.

Exactly; that's the ideal case.  I want the model to be pull _from_
NetworkManager provided information, not have NM push stuff out.

Dan