What does Softdevice send when reply.params.write.gatt_status = BLE_GATT_STATUS_ATTERR_CPS_CCCD_CONFIG_ERROR?

[brianreinhold]

My server gets a write request to a characteristic that has not been enabled.

I respond with

reply.params.write.gatt_status = BLE_GATT_STATUS_ATTERR_CPS_CCCD_CONFIG_ERROR
sd_ble_gatts_rw_authorize_reply(p_ble_evt->evt.gatts_evt.conn_handle, &reply);

However, the value of  BLE_GATT_STATUS_ATTERR_CPS_CCCD_CONFIG_ERROR is 0x1FD.

The PTS test suite is saying that the value received is 0x100 and it should be 0xFD.

Thanks

[Sigurd]

Hi,

Could you upload a sniffer trace of this?

https://www.nordicsemi.com/Products/Development-tools/nrf-sniffer-for-bluetooth-le

[brianreinhold]

Its going to take me a while to do that since my supply of ports is exhausted with PTS and the DK. In the mean time, what is expected to be sent?

From the CSS 11 I have this:

CLIENT CHARACTERISTIC CONFIGURATION
DESCRIPTOR IMPROPERLY CONFIGURED (0xFD)
The Client Characteristic Configuration Descriptor Improperly Configured error
code is used when a Client Characteristic Configuration descriptor is not
configured according to the requirements of the profile or service

Am I sending the correct error code? What confuses me is that the code is 0x1FD for BLE_GATT_STATUS_ATTERR_CPS_CCCD_CONFIG_ERROR which is okay if SoftDevice internally dumps the 0x100 part and sends just the 0xFD. Not sure what would happen if I sent 0xFD straight and did not use the #defines.

[Sigurd]

My server gets a write request to a characteristic that has not been enabled.

What do you mean by not enabled? You mean that the client have not enabled the notification for this characteristic?

[brianreinhold]

This is a PTS test. A command on a control point has been sent to start sending live (real time) data over a characteristic which has not been enabled for notifications or indications. All security necessities have been established. This test is to make sure the server responds with the error code 0xFD as in the text I highlighted in red above.

[Sigurd]

I think you should address this question to the Bluetooth SIG PTS team directly.

Looking at this page, https://www.bluetooth.com/develop-with-bluetooth/qualification-listing/qualification-test-tools/profile-tuning-suite/

it states that it's possible to submit a PTS ticket here: https://www.bluetooth.org/pts/issues/add_issue.cfm