Re: [Xen-devel] BUG? domu network interface configuration

[Nivedita Singhvi <nsnix@xxxxxxxxxxx>]

Michal Ostrowski wrote:
> The immediate problem is in fact that vif-bridge is being called instead of 
> vif-route.
> I'm working on something like the following to detect the script: 
>
> SCRIPT=/bin/false
> if [ -r $CONFIG_FILE ]; then
>     SCRIPT=$(sed -e '/^[^#]*vif-script/!d;s/^(vif-script *\([^ )]*\)).*$/\1/' \
>                 $CONFIG_FILE)
> fi
>
> if [ -z "`which $SCRIPT`" ] ; then
>     # not in path, should probably log an error
>     exit
> fi
>
> As you can see, sxp is not very script friendly.
The above isn't going to be sufficient.

> Having been able to call vif-route, is just the beginning of the real 
> problems...
Right.

> Once I'm in vif-route I need to get the IP address that I assigned to the 
> partition.
Would have been nice to get some head's up on the hotplug
stuff going in so we could test for various networking situations.

> To get that I need to figure out the domain id.  (I suppose I could guess that from 
> the device name.)
> Then I need to find the SXP config file in xenstore (and now I need a
> tool to parse it and extract the "(ip a.b.c.d)" statement), but I don't
> see a way of doing that because there seem to be no scripting tools to
> access xenstore.
We're trying to come up with a temporary hack to work around this
right now.

> Now, even if I did have such a tool, I don't see a way of going from
> domain id to uuid, which is what I think I need in order to interact
> with xenstore.
Can't do it this way :(.

thanks,
Nivedita

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