Hi Nandini,

On Thu, Jan 3, 2019 at 12:01 PM Nandini Rebello
<[email protected]> wrote:
>
> Adding SIM PIN caching feature to oFono. oFono now caches the SIM PIN1 type
> against the ICCID throughout its lifetime in a link list and enters
> implicitly upon modem reset/crash.
>
> Violates 3GPP spec 21.111, section 5.3 - User Data stored in ME. Helps
> in user experience by not barring out cellular services unless pin is entered
> manually.
>
> Handles cases of incorrect pin and sim pin changed externally.
> Clears all cached PINs incase modem disabled manually and selectively when
> sim is removed.
>
> Adding to all modems by default.

Since it can cause losing certification, it would be better to have a
property CachePIN1, disabled by default, and the application can
select whether to go against the standard or not.

Regards,
Giacinto
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