Re: [netcf-devel] [libvirt] [RFC] Reporting host interface status/statistics via netcf/libvirt, and listing active vs. inactive interfaces
On Wed, Jun 17, 2009 at 12:22:13PM -0700, David Lutterkort wrote:
On Wed, 2009-06-17 at 19:24 +0100, Daniel P. Berrange wrote:
> IP address information should be in the XML, and indeed surely it is
> already there in order to allow non-DHCP based IP address config
> on interfaces ?
Yes, for statically configured interfaces, the IP information is in the
XML - that is the _configured_ IP info though, not necessarily the one
that the interface actually uses. The two can diverge, for example, if
an interface is already up and then reconfigured.
We should be using a flag for virInterfaceDumpXML to deal with this
problem, eg virInterfaceDumpXML(iface, 0) would give the config
appropriate to the device's current state. To explicitly get the
inactive config for a interface that is active, you would then do
virInterfaceDumpXML(iface, VIR_INTERFACE_INACTIVE). This matches
what we do for guest domain XML, eg to cope with VNC port number
auto-allocation, or PTY device naming auto-allocation
So, even if the XML indicates type=dhcp, then for an active interface
you'd still expect to get back multiple IP address elements for each
configured address
Regards,
Daniel
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