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From Mike Tutkowski <mike.tutkow...@solidfire.com>
Subject Re: [4.6] Error migrating VM from KVM host
Date Mon, 31 Aug 2015 18:34:35 GMT
Sounds good

Does this look reasonable (I haven't tested it yet):

                CVE-2015-3252: Get XML with sensitive information suitable
for migration by using

                               VIR_DOMAIN_XML_MIGRATABLE flag (value = 8)


https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainXMLFlags


                               Use VIR_DOMAIN_XML_SECURE (value = 1) prior
to v1.0.0.

             */

            if (conn.getLibVirVersion() >= 1000000) { // 1000000 equals
v1.0.0

                xmlDesc =
dm.getXMLDesc(8).replace(libvirtComputingResource.getPrivateIp(),
command.getDestinationIp());

            }

            else {

                xmlDesc =
dm.getXMLDesc(1).replace(libvirtComputingResource.getPrivateIp(),
command.getDestinationIp());

            }

On Mon, Aug 31, 2015 at 12:06 PM, Marcus <shadowsor@gmail.com> wrote:

> Might as well put the check in, to ensure we don't try to use flags that
> aren't available.
>
> On Mon, Aug 31, 2015 at 10:21 AM, Mike Tutkowski <
> mike.tutkowski@solidfire.com> wrote:
>
> > Thanks, everyone
> >
> > Marcus - Do you think I should put in a version check or is that version
> of
> > Libvirt too old to bother supporting?
> >
> > On Monday, August 31, 2015, Marcus <shadowsor@gmail.com> wrote:
> >
> > > Looks like the VIR_DOMAIN_XML_MIGRATABLE flag was introduced in v1.0.0
> > > (version 1000000 in how the Libvirt API reports), and
> > VIR_DOMAIN_XML_SECURE
> > > was all the way back in v0.8.0 (version 8000).
> > >
> > > On Mon, Aug 31, 2015 at 8:04 AM, Marcus <shadowsor@gmail.com
> > > <javascript:_e(%7B%7D,'cvml','shadowsor@gmail.com');>> wrote:
> > >
> > >> There are a bunch of things like this in the code already, and they're
> > >> wrapped in version checks. See
> > >>
> > >> _hypervisorLibvirtVersion in LibvirtComputingResource. We just need to
> > >> figure out which versions need to be left out.
> > >>
> > >>
> > >>
> > >>
> > >> On Mon, Aug 31, 2015 at 1:56 AM, Rohit Yadav <
> rohit.yadav@shapeblue.com
> > >> <javascript:_e(%7B%7D,'cvml','rohit.yadav@shapeblue.com');>> wrote:
> > >>
> > >>> Hi Mike,
> > >>>
> > >>> I think it is related to this, the libvirt version is really old that
> > >>> lacks the flags:
> > >>>
> > >>>
> >
> https://github.com/apache/cloudstack/commit/5d29b63cfa98a15d7734798c5b29a43658d7f112
> > >>>
> > >>> If VM migration flag (8) is not available, can you check
> > >>> if VIR_DOMAIN_XML_SECURE (flag=1) works for you, if so we can change
> > the
> > >>> above fix to use 0x1 (or 1) to support KVM/12.04 though I’m not sure
> > if for
> > >>> vm migration the xml dump method should be provided 0x1 and not 0x8
> > >>> (VIR_DOMAIN_XML_MIGRATABLE).
> > >>>
> > >>> On 31-Aug-2015, at 11:29 am, Mike Tutkowski <mike.tutkowski@solidfire
> > >>>
> > >>> .com> wrote:
> > >>>
> > >>> Hi,
> > >>>
> > >>> I'm having a problem migrating a VM from one 12.04 KVM host to
> another
> > >>> 12.04 KVM host in the same cluster in CS 4.6.
> > >>>
> > >>> Anyone know why I might be receiving this error message?
> > >>>
> > >>> invalid argument: virDomainDefFormat: unsupported flags (0x8)
> > >>>
> > >>> The root disk is stored on cluster-scoped NFS primary storage.
> > >>>
> > >>> Thanks!
> > >>>
> > >>> --
> > >>> *Mike Tutkowski*
> > >>> *Senior CloudStack Developer, SolidFire Inc.*
> > >>> e: mike.tutkowski@solidfire.com
> > >>> <javascript:_e(%7B%7D,'cvml','mike.tutkowski@solidfire.com');>
> > >>> o: 303.746.7302
> > >>> Advancing the way the world uses the cloud
> > >>> <http://solidfire.com/solution/overview/?video=play>*™*
> > >>>
> > >>>
> > >>> Regards,
> > >>> Rohit Yadav
> > >>> Software Architect, ShapeBlue
> > >>>
> > >>>
> > >>>
> > >>>
> > >>> M. +91 88 262 30892 | rohit.yadav@shapeblue.com
> > >>> <javascript:_e(%7B%7D,'cvml','rohit.yadav@shapeblue.com');>
> > >>> Blog: bhaisaab.org | Twitter: @_bhaisaab
> > >>>
> > >>>
> > >>>
> > >>>
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> > >>>
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> > >
> >
> > --
> > *Mike Tutkowski*
> > *Senior CloudStack Developer, SolidFire Inc.*
> > e: mike.tutkowski@solidfire.com
> > o: 303.746.7302
> > Advancing the way the world uses the cloud
> > <http://solidfire.com/solution/overview/?video=play>*™*
> >
>



-- 
*Mike Tutkowski*
*Senior CloudStack Developer, SolidFire Inc.*
e: mike.tutkowski@solidfire.com
o: 303.746.7302
Advancing the way the world uses the cloud
<http://solidfire.com/solution/overview/?video=play>*™*

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