On 08/23/2012 08:03 PM, Denis Kenzior wrote:
Hi Philippe,
On 08/23/2012 11:27 AM, Philippe Nunes wrote:
> GCF test case 31.8.1.2.3 is rejecting the user response.
> Any subsequent USSD notification are not handled because USSD is
> always in
> state user-action.
> ---
> src/ussd.c | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/src/ussd.c b/src/ussd.c
> index 74888b2..21e0164 100644
> --- a/src/ussd.c
> +++ b/src/ussd.c
> @@ -414,6 +414,18 @@ void ofono_ussd_notify(struct ofono_ussd *ussd,
> int status, int dcs,
> return;
> }
>
> + if (status == OFONO_USSD_STATUS_TERMINATED&&
> + (ussd->state == USSD_STATE_IDLE ||
> + ussd->state == USSD_STATE_USER_ACTION)) {
This check makes no sense, why bother checking for ussd->state ==
USSD_STATE_IDLE?
The issue has been unveiled after a network initiated USSD request:
\r\n+CUSD: 1,"Type *70*635*562# and send",15\r\n
src/ussd.c:ofono_ussd_notify() status: 1 ACTION_REQUIRED, state: 0 IDLE
then we try to give an answer:
AT+CUSD=1,"*70*635*562#",15\r
\r\n+CUSD: 2\r\n
\r\n+CME ERROR: 100\r\n
I presume that the same error could occur after a user USSD request. In
this case, the state is still 'idle' and the "Terminated" notification
results in a "NotificationReceived" signal with a NULL string. To avoid
this, I need to check also for ussd->state == USSD_STATE_IDLE. That's
why the first version was for me more appropriate.
> + ussd_change_state(ussd, USSD_STATE_IDLE);
> +
> + if (ussd->pending == NULL)
> + return;
> +
> + reply = __ofono_error_not_supported(ussd->pending);
> + goto out;
> + }
> +
I would handle it just like the 'Not Supported' case but with a new
__ofono_error_network_terminated error reply. Or perhaps re-use
__ofono_error_canceled.
In practice, I don't ever expect to send a reply since the
ussd_response_callback/ ussd_callback is invoked before the TERMINATED
notification. The error returned in the callback is __ofono_error_failed.
So, what about changing the state to 'idle' if not already set and
simply return?
Regards,
Philippe.