On 02/07/2012 06:38 AM, Osier Yang wrote: > The auto-generated WWN comply with the new addressing schema of WWN: > > <quote> > the first nibble is either hex 5 or 6 followed by a 3-byte vendor > identifier and 36 bits for a vendor-specified serial number. > </quote> > > We choose hex 5 for the first nibble. And for the 3-bytes vendor ID, > we uses the OUI according to underlying hypervisor type, (invoking > virConnectGetType to get the virt type). e.g. If virConnectGetType > returns "QEMU", we use Qumranet's OUI (00:1A:4A), if returns > ESX|VMWARE, we use VMWARE's OUI (00:05:69). Currently it only > supports qemu|xen|libxl|xenapi|hyperv|esx|vmware drivers. The last > 36 bits are auto-generated.
> +
> +#define QUMRANET_OUI "001a4a"
> +#define VMWARE_OUI "000569"
> +#define MICROSOFT_OUI "0050f2"
> +#define XEN_OUI "00163e"
> +
> +int
> +virRandomGenerateWWN(char **wwn,
> + const char *virt_type) {
I don't like this interface - it makes virrandom.c know too much. A
better interface would be:
virRandomGenerateWWN(char **wwn, const char *oui)
where the caller is responsible for determining the appropriate OUI for
the hypervisor to be passed in.
--
Eric Blake ebl...@redhat.com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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