Re: Short names on Extended Inquiry Result

[Johan Hedberg <johan.hedberg@gmail.com>]

Hi Alex,

On Mon, May 06, 2013, Alex Deymo wrote:
> I though about several options and finally choose tho consider the
> short name as an unknown name and thus calling the confirm_name() with
> known_name in FALSE, but also report the device with the short name,
> while we ask for the long name.
> 
> This has the advantage of sending the device found signal earlier, but
> may have a problem in the following scenario:
> 1. We have a first call to update_found_devices() with a short name
> and report it to the user.
> 2. We request the full name.
> 3. The device doesn't reply to this request (for any reason)
> 4. We get a second call to update_found_devices() with a short name...
> but since we already know "a name" we don't request the long name.
> 
> To avoid this I think the best should be to include the name_complete
> field in the struct btd_device together with the name. What do you
> think?

I'm not completely sure about this. In theory you could have a (broken
or malicious) device with page scan disabled but inquiry scan enabled
and such a device would be causing us to block all other baseband
activity while we wait for a page timeout to happen each time we request
its name. Since we anyway re-request the name when connecting this might
not be worth it.

Johan