Re: question on "mac80211_hwsim: support any address in userspace"

[Ben Greear <greearb@candelatech.com>]

On 12/16/2015 02:56 PM, Adam R. Welle wrote:
>>> Could somebody provide background information on why the decision was
>>> made to use a second address for the netlink frames instead of the
>>> same address as was used for the non-netlink frames?
>>
>> I would be fine with always using the first address instead of the
>> second, in case that helps someone.
>>
>> We could also set the address at creation time easily enough.  Then it
>> could still be unique across many machines if you managed it.
>
> I actually apply a patch for that. I have added a module parameter which
> is used as the MAC address for the first radio, and I increment the final
> octet for each additional radio. This is so that my users do not have
> to manually reset the MAC address to get a unique one. I apply the address
> to both addresses mentioned above though I only use the netlink datapath.
>
> If there is interest in this I can submit it as an RFC patch tomorrow.

I'd rather see support for specifying an arbitrary MAC upon creation
with a netlink attribute than a module parameter...

Thanks,
Ben

-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com