I learned from the following support ticket link that for adding a pre-bonded LTK to the nRF52 bonding store, I can call pm_peer_new().
https://devzone.nordicsemi.com/f/nordic-q-a/47110/proof-of-concept-with-pre-bonded-ltk
I tried to do this at the end of pm_init(), but I get a system reset while calling pm_peer_new(). The system reset is happening somewhere around write_execute() in nrf_fstorage_sd.c:208. I don't know what the problem is. Obviously writing to the flash fails for some reason?
Below is my code that I inserted at the end of pm_init() from ble_app_bms.
- Could someone please have a look at it and maybe give me a hint what could be wrong here?
- How can I add a static bond/LTK to this example application?
m_peer_rank_initialized = false;
m_module_initialized = true;
// --> CODE INSERT BEGIN!
// (From here on, this is code that is added to original pm_init() of Nordic ble_app_bms example)
pm_peer_id_t peer_id;
const ble_gap_id_key_t m_peer_ble_id = {
.id_info ={
.irk = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},},
.id_addr_info = {
.addr_type = BLE_GAP_ADDR_TYPE_RANDOM_STATIC,
.addr = {0xC2, 0xDA, 0xB2, 0x78, 0xAE, 0xEA},}
};
const ble_gap_enc_key_t m_own_ltk = {
.enc_info ={
.ltk = {0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11},
.lesc = 0x00,
.auth = 0x00,
.ltk_len = 0x10,
},
.master_id = {
.ediv = 0xCB76,
.rand = {0xC9,0x01,0x64,0xD4,0x30,0xC4,0x17,0x25},
}
};
pm_peer_data_bonding_t peer_bonding_data;
// Check if peer ID is already present in the bonding store
peer_id = im_peer_id_get_by_master_id(&(m_own_ltk.master_id));
if (peer_id == PM_PEER_ID_INVALID)
{
// Add new peer to the bonding store
peer_bonding_data.own_role = BLE_GAP_ROLE_PERIPH;
peer_bonding_data.peer_ble_id = m_peer_ble_id;
peer_bonding_data.own_ltk = m_own_ltk;
err_code = pm_peer_new(&peer_id,&peer_bonding_data,NULL);
APP_ERROR_CHECK(err_code);
err_code = pm_peer_data_bonding_store(peer_id,&peer_bonding_data,NULL);
APP_ERROR_CHECK(err_code);
}
// --> CODE INSERT END!
return NRF_SUCCESS;
}
