SIMPLELINK-CC2640R2-SDK: Whitelist filter not working in peripheral.

RAJASREE KUMAR

Part Number: SIMPLELINK-CC2640R2-SDK

Hi,

We are using CC2640R2 (simplelink_cc2640r2_sdk_2_30_00_28) as a peripheral device and Android / IOS mobile as a central device. We want to add mobile BLE MAC address in whitelist. We tried with below code in static void SimplePeripheral_processGapMessage() function under

uint8 remoteBdAddr[B_ADDR_LEN] = {0xdc,0xa3,0xca,0xcf,0xd7,0xd4}; //Mac address=d4:d7:cf:ca:a3:dc

case GAP_UPDATE_LINK_PARAM_REQ_EVENT:

uint8 adv_filter = GAP_ADV_WL_POLICY_WL_ALL_REQ;

//set the white list for advertise and scan
GapAdv_setParam(advHandleLegacy, GAP_ADV_PARAM_FILTER_POLICY, &adv_filter);

HCI_LE_ClearWhiteListCmd();
HCI_LE_AddWhiteListCmd( HCI_PUBLIC_DEVICE_ADDRESS, remoteBdAddr);

But it is observed that CC2640R2 is connecting with all mobiles.

MAC filtering is not working as expected can you please guide on how to resolve this issue.

over 1 year ago

0 Clément over 1 year ago

TI__Guru* 94158 points

Hi,

Can you verify if this behavior is reproducible with newer SDK versions?

Best regards,

0 RAJASREE KUMAR over 1 year ago in reply to Clément

Prodigy 50 points

Hi Clement,

We have tested with SIMPLELINK-CC2640R2-SDK Version: 5.30.00.03 and used simple peripheral example for testing. But the issue is still present.

Do we need to enable any particular settings to make it work?

0 RogelioD over 1 year ago in reply to RAJASREE KUMAR

TI__Genius 9545 points

Hi Raja,

Are you using the BLE or BLE5 Stack

Kind Regards,

Rogelio

0 RAJASREE KUMAR over 1 year ago in reply to RogelioD

Prodigy 50 points

Hi RogelioD,

We are using BLE5 Stack.

Regards,

Rajasree Kumar

0 RogelioD over 1 year ago in reply to RAJASREE KUMAR

TI__Genius 9545 points

Hi Rajasree,

Ill test it over on my side and get back to you tomorrow.

Kind Regards,

Rogelio

0 RAJASREE KUMAR over 1 year ago in reply to RogelioD

Prodigy 50 points

Hi RogelioD,

Have you tested BLE? Any updates?

Regards,

Rajasree Kumar

0 RogelioD over 1 year ago in reply to RAJASREE KUMAR

TI__Genius 9545 points

Hi Rajasree,

Sorry for the delay in response but it seems as though reason you can connect to mobile phones is due to them using PRAs and well the address will be different than the whitelist. Here is a relevant e2e

https://e2e.ti.com/support/wireless-connectivity/bluetooth-group/bluetooth/f/bluetooth-forum/423732/cc2640-use-white-list-to-filter-connect-request

Kind Regards,

Rogelio

0 RAJASREE KUMAR over 1 year ago in reply to RogelioD

Prodigy 50 points

Hi RogelioD,

Thanks for your reply. I am unable to open the link which was available inside the link(https://e2e.ti.com/support/wireless-connectivity/bluetooth-group/bluetooth/f/bluetooth-forum/423732/cc2640-use-white-list-to-filter-connect-request) shared by you.

I am herewith sharing the link which I am unable to open.

https://e2e.ti.com/support/wireless_connectivity/f/538/p/321648/1428335

Can you please help on this?

Regards,

Rajasree Kumar

0 RogelioD over 1 year ago in reply to RAJASREE KUMAR

TI__Genius 9545 points

Hi Rajasree,

It seems as though the link is broken, but the issue is due to phone using RPA Resolvable Private Address the whitelist wont work as the address changes over time.

You can read more about it in the privacy section of the user guide.

Kind Regards,

Rogelio

0 RAJASREE KUMAR over 1 year ago in reply to RogelioD

Prodigy 50 points

Hi RogelioD,

Is there any other alternative method to implement the whitelist for smart phones?

Thanks & Regards,

Rajasree Kumar

0 RogelioD over 1 year ago in reply to RAJASREE KUMAR

TI__Genius 9545 points

Hi Rajasree,

I would try this

Path

file:///C:/ti/simplelink_cc2640r2_sdk_5_30_00_03/docs/ble5stack/ble_user_guide/html/ble-stack-5.x/gap-cc2640.html?highlight=gap%20scanning#filtering

Kind Regards,

Rogelio

0 RAJASREE KUMAR over 1 year ago in reply to RogelioD

Prodigy 50 points

Hi RogelioD,

Thanks for your reply. As per your suggestion, This filter policy will work on the central device side. We are looking for the peripheral device(Smart Phones).

Regards,

Rajsree Kumar

0 Jan over 1 year ago in reply to RAJASREE KUMAR

TI__Mastermind 30419 points

Hi Rajsree,

I truly apologies for the extended delay and any inconvenience this may have caused. Are you still experiencing this issue? If so, then I found an E2E thread that discusses a possible fix for this. Can you try the procedure shared by Marie in the following rhread and report the results you are able to observe?

https://e2e.ti.com/support/wireless-connectivity/bluetooth-group/bluetooth/f/bluetooth-forum/872096/ccs-cc2640r2f-as-a-peripheral-how-to-use-resolving-list-or-whitelist-to-filter-out-bonded-phone

Best Regards,

Jan

0 RAJASREE KUMAR over 1 year ago in reply to Jan

Prodigy 50 points

Hi Jan,

uint8 remoteBdAddr[B_ADDR_LEN] = {0xdc,0xa3,0xca,0xcf,0xd7,0xd4}; //Mac address=d4:d7:cf:ca:a3:dc

case GAP_UPDATE_LINK_PARAM_REQ_EVENT:

uint8 adv_filter = GAP_ADV_WL_POLICY_WL_ALL_REQ;

//set the white list for advertise and scan
GapAdv_setParam(advHandleLegacy, GAP_ADV_PARAM_FILTER_POLICY, &adv_filter);

HCI_LE_ClearWhiteListCmd();
HCI_LE_AddWhiteListCmd( HCI_PUBLIC_DEVICE_ADDRESS, remoteBdAddr);

But it is observed that CC2640R2 is connecting with all mobiles.

When we tried to trace the MAC address of connected device, It is in the form of RPA (Resolvable Private Addess).

Because of RPA, whitelist function is not working as expected.

Please let us know, how to connect the smart phone with the BLE using the whitelist or any other method.

Regards,

Rajasree Kumar

0 Jan over 1 year ago in reply to RAJASREE KUMAR

TI__Mastermind 30419 points

Hi Rajasree,

Understood. In the case where the peer device uses RPA, we must use a resolving list instead of a whitelist. The Privacy Chapter of the User's Guide provides information on how to work with a resolving list. I would recommend referencing the followings sections.

Managing the Resolving List

Resolving List

Host Address Resolution in BLE5-Stack

Best Regards,

Jan