[libvirt] [PATCH] Fix parser checking of storage pool device

[Eric Blake]

According to Daniel P. Berrange on 3/3/2010 11:48 AM:
> The storage backend implementations all presume that the XML parser
> is validating correctness of the source specification. The check for
> a source device was lost at some point. This allowed for a potential
> crash in the disk backend. Re-introduce the sanity check
> 
...
> +++ b/src/conf/storage_conf.c
> @@ -689,6 +689,15 @@ virStoragePoolDefParseXML(xmlXPathContextPtr ctxt) {
>          }
>      }
>  
> +    /* If DEVICE is the only source type, then its required */

s/its/it's/

> +    if (options->flags == VIR_STORAGE_POOL_SOURCE_DEVICE) {
> +        if (!ret->source.ndevice) {
> +            virStorageReportError(VIR_ERR_XML_ERROR,
> +                                  "%s", _("missing storage pool source device name"));
> +            goto cleanup;
> +        }
> +    }

ACK.

-- 
Eric Blake   eblake at redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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