White-list without bond manager

RE: White-list without bond manager

Valer_I — Wed, 16 Sep 2015 14:36:27 GMT

Solution is here: devzone.nordicsemi.com/.../

RE: White-list without bond manager

Ole Morten — Thu, 03 Apr 2014 08:14:32 GMT

As I said in my first reply, there shouldn't be any problems with this. If you just want to use addresses for whitelisting, just make sure that the irk_count field is set to 0, in which case the contents for IRKs doesn't matter. Also note that the pp_addrs should be initialized with a pointer to an array of addresses (i.e. if you have ble_gap_addr_t addresses[2], you should use &addresses as parameter).

If you still have issues, please post your complete code project, either here or in a support case.

RE: White-list without bond manager

Ole Morten — Thu, 03 Apr 2014 08:11:02 GMT

As it seems you have found out, the hard fault occurs since you basically say "I want memory for a pointer to a whitelist struct", but use it as a full whitelist struct. Since it is a static global, it will be initialized to 0, and wen you then try to access fields within this struct, it will dereference 0, and then try to access that address. That may very well cause a hard fault, since you may easily end up outside of the memory of the chip.

RE: White-list without bond manager

Ole Morten — Thu, 03 Apr 2014 08:08:01 GMT

Unless there is other code you're not showing, this will give you a 0x07 back from sd_ble_gap_adv_start(). The reason is that starting advertising with a filter policy, but an empty whitelist doesn't really make sense. You should therefore make sure to check whether your whitelist actually have any content before you try using a filter policy.

RE: White-list without bond manager

thomas — Wed, 02 Apr 2014 15:41:26 GMT

I think i don't build my white-list structure correctly.irk keys adds problems. In all examples, whitelist come from the bond manager.

How to correctly generate a whitelist ? Is possible to use bond manager get whitelist function without the bond operation ?

RE: White-list without bond manager

thomas — Wed, 02 Apr 2014 09:41:26 GMT

I've changed declaration ( i declared a ble_gap_whitelist_t directly, not a pointer) The Hardfault doesn't occur.

But now, my sd_ble_gap_adv_start function return me the NRF_ERROR_INVALID_PARAM code. So i verified adv_params but i don't find anything..

Do i forgot something ?

static ble_gap_whitelist_t whitelist;

whitelist.addr_count = 0x00;
whitelist.pp_addrs = NULL;

static void advertising_start(void)
{
    uint32_t             err_code;
    ble_gap_adv_params_t adv_params;

		protection_mode = true;
		connection_state = false;
	
    // Start advertising
    memset(&adv_params, 0, sizeof(adv_params));
    
    dv_params.type        = BLE_GAP_ADV_TYPE_ADV_IND; //adv
    adv_params.p_peer_addr = NULL;
    adv_params.fp          = BLE_GAP_ADV_FP_FILTER_BOTH; // both with whitelist //
    adv_params.interval    = APP_ADV_INTERVAL;
    adv_params.timeout     = APP_ADV_TIMEOUT_IN_SECONDS;
		adv_params.p_whitelist = &whitelist;

    err_code = sd_ble_gap_adv_start(&adv_params);
    APP_ERROR_CHECK(err_code);
 
}

RE: White-list without bond manager

thomas — Tue, 01 Apr 2014 15:55:18 GMT

Hi,

A part of my code to achieve this :

i've declared a whitelist in global :

static ble_gap_whitelist_t *whitelist;					
static ble_gap_addr_t	*addr_array[BLE_GAP_WHITELIST_ADDR_MAX_COUNT];

In my advertising initialization i want to initialize my whitelist without any pair so i do that ( when the device started the first time) :

whitelist->addr_count = 0x00;
whitelist->pp_addrs = NULL;

second line cause an hardfault and i don't know wy ... Any idea ? It's possible to advertise with an empty whitelist ?

RE: White-list without bond manager

Ole Morten — Thu, 27 Mar 2014 16:57:18 GMT

Yes, this should be perfectly doable. You can store the address you get in the connected event somewhere in flash, for instance using the pstorage module, and then create a whitelist structure yourself when you want to start advertising again.