nrf52832 bonding to apple iphone

[Rickon]

Hi Friend,

I use nrf252832 MCU and SDK 15.3, 

I would like to Implement below function, 

1:Device bond phone A without password first , the phone A popups a bonding dialog box;

2: Disconnect phone A and  bond phone B,  the phone B popups a bonding dialog box;

Now it is right;

3:Then I connect phone A back, I want phone A to popup a bonding dialog box again;

If phone A is android phone ,it is ok, but if the phone A is a apple iPhone, it does not popup a bonding dialog box again and pair fail.

How can I bond the iPhone A back? 

The MAC address adding 1 seems make it work,but it is not a good methed.

Thanks!

[Mttrinh]

Hi,

Is there a reason that you want to bond again when you already have bonded the first time?

Do you mean to erase bonding data before connecting to phone A again?

[Mttrinh]

Hi,

Which SDK are you using? Are you using peer manager?

How are you storing your bonding data?

[Rickon]

SDK15.3,using peer manager.

I only want to bond one phone

[Rickon]

#define SEC_PARAM_TIMEOUT               30                                           /**< Timeout for Pairing Request or Security Request (in seconds). */
#define SEC_PARAM_BOND                  1                                            /**< Perform bonding. */
#define SEC_PARAM_MITM                  0                                            /**< Man In The Middle protection not required. */
#define SEC_PARAM_LESC                  0                                          /**< LE Secure Connections enabled. */
#define SEC_PARAM_KEYPRESS              0                                           /**< Keypress notifications not enabled. */
#define SEC_PARAM_IO_CAPABILITIES       BLE_GAP_IO_CAPS_NONE                         /**< No I/O capabilities. */
#define SEC_PARAM_OOB                   0                                            /**< Out Of Band data not available. */
#define SEC_PARAM_MIN_KEY_SIZE          7                                            /**< Minimum encryption key size. */
#define SEC_PARAM_MAX_KEY_SIZE          16                                           /**< Maximum encryption key size. */


/**@brief Function for the Peer Manager initialization.
 *
 * @param[in] erase_bonds  Indicates whether bonding information should be cleared from
 *                         persistent storage during initialization of the Peer Manager.
 */
static void peer_manager_init(bool erase_bonds)
{
    
    ret_code_t           err_code;

    err_code = pm_init();
    APP_ERROR_CHECK(err_code);
    
    if (erase_bonds)
    {
        err_code = pm_peers_delete();
        APP_ERROR_CHECK(err_code);
    }

    memset(&m_sec_params, 0, sizeof(ble_gap_sec_params_t));

    // Security parameters to be used for all security procedures.
    m_sec_params.bond           = SEC_PARAM_BOND;
                m_sec_params.mitm           = SEC_PARAM_MITM;
    m_sec_params.lesc           = SEC_PARAM_LESC;
    m_sec_params.keypress       = SEC_PARAM_KEYPRESS;
    m_sec_params.io_caps        = SEC_PARAM_IO_CAPABILITIES;
    m_sec_params.oob            = SEC_PARAM_OOB;
    m_sec_params.min_key_size   = SEC_PARAM_MIN_KEY_SIZE;
    m_sec_params.max_key_size   = SEC_PARAM_MAX_KEY_SIZE;
    m_sec_params.kdist_own.enc  = 1;
    m_sec_params.kdist_own.id   = 1;
    m_sec_params.kdist_peer.enc = 1;
    m_sec_params.kdist_peer.id  = 1;
                

    err_code = pm_sec_params_set(&m_sec_params);
    APP_ERROR_CHECK(err_code);

    err_code = pm_register(pm_evt_handler);
    APP_ERROR_CHECK(err_code);
}
//------------------------------------------------------------------
//------------------------------------------------------------------
static void pm_evt_handler(pm_evt_t const * p_evt)
{
   ret_code_t err_code;

    pm_handler_on_pm_evt(p_evt);
    pm_handler_disconnect_on_sec_failure(p_evt);
    pm_handler_flash_clean(p_evt);
    
          NRF_LOG_INFO("pm_evt_handler = %d",p_evt->evt_id);
    switch(p_evt->evt_id)
    {
        case PM_EVT_BONDED_PEER_CONNECTED:
            // Update the rank of the peer.
            err_code = pm_peer_rank_highest(p_evt->peer_id);
            break;
        case PM_EVT_CONN_SEC_START:
            break;
        case PM_EVT_CONN_SEC_SUCCEEDED:
            // Update the rank of the peer.
            err_code = pm_peer_rank_highest(p_evt->peer_id);
                        
            break;
        case PM_EVT_CONN_SEC_FAILED:
            // In some cases, when securing fails, it can be restarted directly. Sometimes it can be
            // restarted, but only after changing some Security Parameters. Sometimes, it cannot be
            // restarted until the link is disconnected and reconnected. Sometimes it is impossible
            // to secure the link, or the peer device does not support it. How to handle this error
            // is highly application-dependent.
                                   
            break;
                                         
        case PM_EVT_CONN_SEC_CONFIG_REQ:
        {
            // A connected peer (central) is trying to pair, but the Peer Manager already has a bond
            // for that peer. Setting allow_repairing to false rejects the pairing request.
            // If this event is ignored (pm_conn_sec_config_reply is not called in the event
            // handler), the Peer Manager assumes allow_repairing to be false.
                                         
                                          
            pm_conn_sec_config_t conn_sec_config = {.allow_repairing = false};
            pm_conn_sec_config_reply(p_evt->conn_handle, &conn_sec_config);
        }
        break;
        case PM_EVT_CONN_SEC_PARAMS_REQ:
        {
            // If you want to set different security parameters for particular peers, you can do
            // so here. Pass the desired security parameters to pm_conn_sec_params_reply().
                                        
                                          
                                        
            err_code = pm_conn_sec_params_reply(p_evt->conn_handle,
                                               &m_sec_params,
                                                p_evt->params.conn_sec_params_req.p_context);
            APP_ERROR_CHECK(err_code);
        } break;
        case PM_EVT_STORAGE_FULL:
            // Run garbage collection on the flash.
            err_code = fds_gc();
            if (err_code == FDS_ERR_BUSY || err_code == FDS_ERR_NO_SPACE_IN_QUEUES)
            {
                // Retry.
            }
            else
            {
                APP_ERROR_CHECK(err_code);
            }
            break;
        case PM_EVT_ERROR_UNEXPECTED:
            // Assert.
            APP_ERROR_CHECK(p_evt->params.error_unexpected.error);
            break;
        case PM_EVT_PEER_DATA_UPDATE_SUCCEEDED:
            break;
        case PM_EVT_PEER_DATA_UPDATE_FAILED:
            // Assert.
            APP_ERROR_CHECK_BOOL(false);
            break;
        case PM_EVT_PEER_DELETE_SUCCEEDED:
            break;
        case PM_EVT_PEER_DELETE_FAILED:
            // Assert.
            APP_ERROR_CHECK(p_evt->params.peer_delete_failed.error);
            break;
        case PM_EVT_PEERS_DELETE_SUCCEEDED:
            // At this point it is safe to start advertising or scanning.
            break;
        case PM_EVT_PEERS_DELETE_FAILED:
            // Assert.
            APP_ERROR_CHECK(p_evt->params.peers_delete_failed_evt.error);
            break;
        case PM_EVT_LOCAL_DB_CACHE_APPLIED:
            break;
        case PM_EVT_LOCAL_DB_CACHE_APPLY_FAILED:
            // The local database has likely changed, send service changed indications.
            pm_local_database_has_changed();
            break;
        case PM_EVT_SERVICE_CHANGED_IND_SENT:
            break;
        case PM_EVT_SERVICE_CHANGED_IND_CONFIRMED:
            break;
                                default:
                                        break;
    }
}
//-------------------------------------------------------------------------
//-------------------------------------------------------------------------
static void ble_evt_handler(ble_evt_t const * p_ble_evt, void * p_context)
{
    ret_code_t err_code = NRF_SUCCESS;

    switch (p_ble_evt->header.evt_id)
    {
        case BLE_GAP_EVT_CONNECTED:
            
            m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
            err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_conn_handle);
            APP_ERROR_CHECK(err_code);
                                                err_code = sd_ble_gap_tx_power_set(BLE_GAP_TX_POWER_ROLE_CONN,m_conn_handle,BLE_TX_CONNECT_POWER);
                                                APP_ERROR_CHECK(err_code);
                                
                                NRF_LOG_INFO("MAC ADDRESS = %02x:%02x:%02x:%02x:%02x:%02x",p_ble_evt->evt.gap_evt.params.connected.peer_addr.addr[0],\
                                  p_ble_evt->evt.gap_evt.params.connected.peer_addr.addr[1],\
                                p_ble_evt->evt.gap_evt.params.connected.peer_addr.addr[2],\
                                p_ble_evt->evt.gap_evt.params.connected.peer_addr.addr[3],\
                                p_ble_evt->evt.gap_evt.params.connected.peer_addr.addr[4],\
                                p_ble_evt->evt.gap_evt.params.connected.peer_addr.addr[5]);
                                    
                        
                                                pm_conn_secure(m_conn_handle,false);
            break;

[Rickon]

After connection, the device calls the function pm_conn_secure(m_conn_handle,false)to trigger the bonding, is that correct?