[libvirt] [PATCH 06/11] Convert Xen domain VCPU driver methods to use virDomainDefPtr

Daniel P. Berrange berrange at redhat.com
Tue May 21 13:16:02 UTC 2013


On Mon, May 20, 2013 at 12:14:04PM -0600, Jim Fehlig wrote:
> Daniel P. Berrange wrote:
> > From: "Daniel P. Berrange" <berrange at redhat.com>
> >
> > Introduce use of a virDomainDefPtr in the domain VCPU
> > APIs to simplify introduction of ACL security checks.
> > The virDomainPtr cannot be safely used, since the app
> > may have supplied mis-matching name/uuid/id fields. eg
> > the name points to domain X, while the uuid points to
> > domain Y. Resolving the virDomainPtr to a virDomainDefPtr
> > ensures a consistent name/uuid/id set.
> >
> > Signed-off-by: Daniel P. Berrange <berrange at redhat.com>
> > ---
> >  src/xen/xen_driver.c     | 84 ++++++++++++++++++++++++++++++++++++++++--------
> >  src/xen/xen_hypervisor.c | 42 ++++++++++++------------
> >  src/xen/xen_hypervisor.h |  9 ++++--
> >  src/xen/xend_internal.c  | 81 ++++++++++++++++++++++++++--------------------
> >  src/xen/xend_internal.h  | 17 ++++++----
> >  src/xen/xm_internal.c    | 30 +++++++++--------
> >  src/xen/xm_internal.h    | 19 ++++++++---
> >  7 files changed, 187 insertions(+), 95 deletions(-)
> >
> > diff --git a/src/xen/xen_driver.c b/src/xen/xen_driver.c
> > index 8b7dec9..04cb69d 100644
> > --- a/src/xen/xen_driver.c
> > +++ b/src/xen/xen_driver.c
> > @@ -647,11 +647,30 @@ xenUnifiedConnectNumOfDomains(virConnectPtr conn)
> >  
> >  static virDomainPtr
> >  xenUnifiedDomainCreateXML(virConnectPtr conn,
> > -                          const char *xmlDesc, unsigned int flags)
> > +                          const char *xml,
> > +                          unsigned int flags)
> >  {
> > +    xenUnifiedPrivatePtr priv = conn->privateData;
> > +    virDomainDefPtr def = NULL;
> > +    virDomainPtr ret = NULL;
> > +
> >      virCheckFlags(0, NULL);
> >  
> > -    return xenDaemonCreateXML(conn, xmlDesc);
> > +    if (!(def = virDomainDefParseString(xml, priv->caps, priv->xmlopt,
> > +                                        1 << VIR_DOMAIN_VIRT_XEN,
> > +                                        VIR_DOMAIN_XML_INACTIVE)))
> > +        goto cleanup;
> > +
> > +    if (xenDaemonCreateXML(conn, def) < 0)
> > +        goto cleanup;
> > +
> > +    ret = virGetDomain(conn, def->name, def->uuid);
> > +    if (ret)
> > +        ret->id = def->id;
> > +
> > +cleanup:
> > +    virDomainDefFree(def);
> > +    return ret;
> >  }
> >   
> 
> Should this hunk be in patch 2? Or perhaps it was meant for patch 5?

Hmm, actually, yes, it should be in the previous patch.

Daniel
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