[PATCH] libmbim: Add mbim-proxy support

[Aleksander Morgado]

On Fri, May 30, 2014 at 10:41 AM, Bjørn Mork <bjorn at mork.no> wrote:
>>> So what I'm doing is if a client has sent the
>>> MBIM_CID_BASIC_CONNECT_DEVICE_SERVICE_SUBSCRIBE_LIST
>>> it will only receive indications from that list.
>>
>> Yes, unless there is an indication coming which isn't by default
>> enabled in any client. If there is an indication not configured by any
>> client, then it should go to all.
>
> I'm not sure about this.  You will probably hit this due to races
> between disconnecting clients and proxy<->modem communication. Avoiding
> that is going to be hard, because the indications can already be
> buffered in both modem and driver at the time you attempt to disable
> them.  OK, it can be fixed using a grace period.  But it's going to be a
> mess...  And I don't think it's worth messing up stuff for spec
> compliant modems and clients, just to paper over a possible(?) modem
> firmware bug.

I'm kind of getting convinced that it may not be worth trying to
manage that in the proxy, especially when we don't know of any modem
behaving correctly w.r.t. indications being sent when not supposed to
(or do we know of any).

Greg, will leave this up to you, as I guess you'll test it and have
more insights on how it's going to work within the proxy. If you think
that it is not worth sending to all clients notifications that arrived
when no client had them configured, let's just filter them out in the
proxy itself.

-- 
Aleksander
https://aleksander.es