On 02/06/2012 02:11 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 use Qumranet's OUI > (00:1A:4A) as the 3-byte vendor indentifier. The last 36 bits > are auto-generated. > --- > src/conf/node_device_conf.c | 36 +++++++++++++++++++----------------- > src/libvirt_private.syms | 1 + > src/util/virrandom.c | 18 ++++++++++++++++++ > src/util/virrandom.h | 1 + > 4 files changed, 39 insertions(+), 17 deletions(-)
> +
> +#define QUMRANET_OUI "001a4a"
> +
> +int
> +virRandomGenerateWWN(char **wwn) {
> + if (virAsprintf(wwn, "5" QUMRANET_OUI "%09" PRIx64,
> + virRandomBits(36)) < 0) {
> + virReportOOMError();
> + return -1;
> + }
> +
> + return 0;
ACK. It looks a lot shorter than v4, which is a good thing :)
--
Eric Blake ebl...@redhat.com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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