[libvirt] Problem with the current svirt patch

Daniel P. Berrange berrange at redhat.com
Mon Mar 16 20:05:26 UTC 2009

On Mon, Mar 16, 2009 at 02:30:24PM -0400, Daniel J Walsh wrote:
> On 03/13/2009 11:45 AM, Daniel P. Berrange wrote:
> >On Fri, Mar 13, 2009 at 11:03:26AM -0400, Daniel J Walsh wrote:
> >>The current svirt patch relabels all disk to the image_t:MCS, which is
> >>incorrect.  Read Only Disks and Sharable Disks should not be labeled.
> >>
> >>Also when libvirt is completed running the image it needs to relabel the
> >>image back to something sane.  Right now it is labeling everything
> >>imagelabel:s0, including phisical disk partitions.  I considered two
> >>ways of labeling the "disk" back.  We can either grab the label when
> >>libvirt starts and change it back to this label when ever an image
> >>completes or we can ask the system what the label should be.
> >>(matcpathcon).  I originally coded up the first, but quickly realized if
> >>anything went wrong with libvirt labeling like a crash, the labels on
> >>disk could be wrong.  And libvirt would continuously set them to this
> >>wrong label.  With matchpathcon, libvirt will at least set them to
> >>something sane.
> >>
> >>So this patch Removes labeling of readonly and shared disks and restores
> >>the images label to the system default when the image completes.
> >>
> >>I would really like to get this in ASAP.  Since currently libvirt is
> >>relabeing the cdrom to virt_image_t when it is complete as well as
> >>physical disks.
> >
> >ACK this all looks sane to me.
> >
> Is this going to be merged in?

Yep, its on my todo list to test & merge it- should get to it tommorrow

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