Open Radar

 
Area:
Bluetooth

Summary: 
BLE Advertisement Events of type ADV_SCAN_IND (0x02) are non-connectable, yet MacOS reports them as connectable. Specifically, the advertisementData[CBAdvertisementDataIsConnectable] value is "1".

As per Bluetooth Core Specification 4.4.2, "scannable undirected" or (ADV_SCAN_IND), 0x02, is a non-connectable event.
See (https://www.bluetooth.com/specifications/bluetooth-core-specification)

Steps to Reproduce: 
Given any peripheral advertising event ADV_SCAN_IND (0x02), scan on a MacOS machine, handle the discovery and display the value of advertisementData[CBAdvertisementDataIsConnectable].

Creating a peripheral device in this mode isn't trivial, and can't be done using iOS or MacOS code. If you promise to fix this bug, I will send you a $50 Nordic development kit with the requisite source code installed.

Here is a snippet of the source code I use on a Nordic nrf51:

      adv_params.type = BLE_GAP_ADV_TYPE_ADV_SCAN_IND;
      err_code = sd_ble_gap_adv_start( &adv_params );

You can also verify this with Bluetooth Explorer.

Expected Results: 
Upon receipt of an advertising event of type ADV_SCAN_IND, the peripheral's connectability should be noted as FALSE (non-connectable)

Actual Results: 
Only on receipt of ADV_NONCONN_IND events does MacOS report non-connectable. ADV_SCAN_IND is erroneously reported as connectable.

Version/Build:
Verified MacOS Sierra 10.12.6 and HighSierra 10.13