Hi Denis,
>> If instead I changed the interface between mbpi and provisioning plugin
>> and kept the interface with the core intact, would that look acceptable
>> to you?
> Perhaps, but I'm still failing to see why the service provider name as
> entered in MBPI is useful to anyone.

Operators share mcc/mnc meaning that automatically finding the best AP 
(the one most likely to work) from the database may involve some sort of 
fuzzy logic (partial or case-insensitive name comparison or something 
like this) implemented in a product-specific provisioning plugin. Making 
things work out-the-box translates into fewer customer complaints, 
better user experience and is generally the right thing to do.

I was trying to share a piece of code that doesn't involve any 
product-specific logic and yet might be useful to others.

Please let me know if I should give it another try, otherwise I won't 
waste anyone's time and this code will just remain in our branch of ofono.

Thanks,
-Slava