Direct advertising with unbonded Android phone's IRK

[Pureer]

I was using NRF52832 and s132 v6.0.

I have Android phone's IRK and I have added the Android phone into the identites list manually.

After doing the direct advertising to Android phone.Why can't nrf52832 be connected ?

I have noticed that some comments in the devzone said "You can't be connected with direct advertising without bonding".But why?I think if I get the IRK ,and add to the identites list,it should be connected .It can accord to the BT core Vol 6 Part D 5.4 .

Maybe should I add the Android phone into the peer_list manually too?

[Pureer]

Below is my code snippets

//Global var
ble_gap_id_key_t oneplus3_key = {
    .id_addr_info={
        0,
        BLE_GAP_ADDR_TYPE_RANDOM_STATIC,
        {0x76,0x53,0xd6,0xfb,0xee,0xc0},          //one_plus3  android phone
    }
};

//........................
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void init_advertising(void){
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    uint8_t *oneplus3_irk_string = "076b01ad29fcbb56bda76d3c9adb0ec0";  // adb shell ,/data/misc/bluedroid/bt_config.config grep "LOCAL_IRK"

    uint8_t temp[2];
    uint8_t *ptr = NULL;
    unsigned long ret = 0;

    for (int i = 0,j=0; i < BLE_GAP_SEC_KEY_LEN;i++,j+=2)
    {
        memmove(temp,&oneplus3_irk_string[j],sizeof(uint8_t)*2);
        ret = strtoul(temp, &ptr, 16);

        oneplus3_key.id_info.irk[i] = (uint8_t)ret;
    }
    // The irk is right ,I have test it in fast advertising with pm_address_resolve();
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static void on_adv_evt(ble_adv_evt_t ble_adv_evt){
................................................
        case BLE_ADV_EVT_WHITELIST_REQUEST:
        {
            ble_gap_id_key_t* key_list[BLE_GAP_DEVICE_IDENTITIES_MAX_COUNT];
            memset(key_list,0,BLE_GAP_DEVICE_IDENTITIES_MAX_COUNT*sizeof(int));
            key_list[0] =    &oneplus3_key;
            sd_ble_gap_device_identities_set(key_list,NULL,1);

            ble_gap_addr_t const* whitelist_addrs_gap[BLE_GAP_WHITELIST_ADDR_MAX_COUNT];

            ble_gap_addr_t whitelist_addrs[BLE_GAP_WHITELIST_ADDR_MAX_COUNT];
            ble_gap_irk_t  whitelist_irks[BLE_GAP_WHITELIST_ADDR_MAX_COUNT];
            uint32_t       addr_cnt = BLE_GAP_WHITELIST_ADDR_MAX_COUNT;
            uint32_t       irk_cnt  = BLE_GAP_WHITELIST_ADDR_MAX_COUNT;

            whitelist_addrs_gap[0] = &oneplus3_key.id_addr_info;
            memmove(&whitelist_addrs[0],&oneplus3_key.id_addr_info,sizeof(ble_gap_addr_t));
            memmove(&whitelist_irks[0],&oneplus3_key.id_info,sizeof(ble_gap_irk_t));
            addr_cnt = 1;
            irk_cnt = 1;

            err_code = sd_ble_gap_whitelist_set(whitelist_addrs_gap, 1);
            APP_ERROR_CHECK(err_code);

            // Apply the whitelist.
            err_code = ble_advertising_whitelist_reply(&m_advertising,
                                                       whitelist_addrs,
                                                       addr_cnt,
                                                       whitelist_irks,
                                                       irk_cnt);
            APP_ERROR_CHECK(err_code);
        }
        break;
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