Passkey and the gls example

[KlevioRok]

Hi!

I am trying to modify the ble_app_gls example from the 8.0.0 SDK and am running into some issues. I am trying to add the nus service to this example and would like to remove the gls service, so I would basically have the nus example with pairing/bonding.

I was wondering why does the BLE stop requiring passkey on connect if I comment out this section:

memset(&gls_init, 0, sizeof(gls_init));

gls_init.evt_handler          = NULL;
gls_init.error_handler        = service_error_handler;
gls_init.feature              = 0;
gls_init.feature             |= BLE_GLS_FEATURE_LOW_BATT;
gls_init.feature             |= BLE_GLS_FEATURE_TEMP_HIGH_LOW;
gls_init.feature             |= BLE_GLS_FEATURE_GENERAL_FAULT;
gls_init.is_context_supported = false;
err_code = ble_gls_init(&m_gls, &gls_init);
APP_ERROR_CHECK(err_code);

If this part is not commented out, the BLE demands a passkey when trying to connect. It would be very appreciated if you can please point me to what am I missing.

Edit: This actually happens only on iOS, when using nrf Connect. If I click connect, the app says "connected" without prompting for a passkey.

Kind regards, Rok

[Alex]

Check in ble_gls_init() if you are using BLE_GAP_CONN_SEC_MODE_SET_ENC_WITH_MITM which should trigger passkey enter when app accesses gls service. I think iOS asks for passkey always but Android if app trying to access it. Although I may be wrong regarding difference.

[KlevioRok]

Thanks for the suggestion.

Yeah I saw this difference when checking the ble_gls_init and ble_nus_init functions and modified the rx_char_add function so that it know states:

BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&cccd_md.write_perm);

But for some reason the nrf connect still doesnt prompt for a passkey and just connects to the device.