ipam.py 文件源码

def deallocate_mac_address(self, context, address, **kwargs):
        admin_context = context.elevated()
        mac = db_api.mac_address_find(admin_context, address=address,
                                      scope=db_api.ONE)
        if not mac:
            raise q_exc.MacAddressNotFound(
                mac_address_id=address,
                readable_mac=netaddr.EUI(address))

        if (mac["mac_address_range"] is None or
                mac["mac_address_range"]["do_not_use"]):
            db_api.mac_address_delete(admin_context, mac)
        else:
            db_api.mac_address_update(admin_context, mac, deallocated=True,
                                      deallocated_at=timeutils.utcnow())