void app_bond_update_context(app_bond_table_t * p_bond_table, dm_handle_t const * p_handle)
{
uint32_t err_code;
dm_application_context_t app_context;
app_context.p_data = (uint8_t *)&p_bond_table->app_bond_cnt[p_handle->device_id];
app_context.len = sizeof(p_bond_table->app_bond_cnt[0]);
err_code = dm_application_context_set(p_handle,&app_context);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for providing peer information to DFU for re-establishing a bonded connection in
* DFU mode.
*
* @param[in] conn_handle Connection handle for the connection requesting DFU mode.
*/
static void dfu_app_peer_data_set(uint16_t conn_handle)
{
uint32_t err_code;
dm_sec_keyset_t key_set;
uint32_t app_context_data = 0;
dm_application_context_t app_context;
/** [DFU bond sharing] */
err_code = dm_handle_get(conn_handle, &m_dm_handle);
if (err_code == NRF_SUCCESS)
{
err_code = dm_distributed_keys_get(&m_dm_handle, &key_set);
if (err_code == NRF_SUCCESS)
{
APP_ERROR_CHECK(err_code);
m_peer_data.addr = key_set.keys_central.p_id_key->id_addr_info;
m_peer_data.irk = key_set.keys_central.p_id_key->id_info;
m_peer_data.enc_key.enc_info = key_set.keys_periph.enc_key.p_enc_key->enc_info;
m_peer_data.enc_key.master_id = key_set.keys_periph.enc_key.p_enc_key->master_id;
err_code = dfu_ble_svc_peer_data_set(&m_peer_data);
APP_ERROR_CHECK(err_code);
app_context_data = (DFU_APP_ATT_TABLE_CHANGED << DFU_APP_ATT_TABLE_POS);
app_context.len = sizeof(app_context_data);
app_context.p_data = (uint8_t *)&app_context_data;
app_context.flags = 0;
err_code = dm_application_context_set(&m_dm_handle, &app_context);
APP_ERROR_CHECK(err_code);
}
else
{
// Keys were not available, thus we have a non-encrypted connection.
err_code = dm_peer_addr_get(&m_dm_handle, &m_peer_data.addr);
APP_ERROR_CHECK(err_code);
err_code = dfu_ble_svc_peer_data_set(&m_peer_data);
APP_ERROR_CHECK(err_code);
}
}
/** [DFU bond sharing] */
}
void app_bond_init(app_bond_table_t * p_bond_table)
{
uint32_t err_code;
dm_application_context_t app_context;
dm_handle_t dm_handle = {.appl_id = 0};
static uint32_t context_data;
app_context.len = sizeof(context_data);
app_context.p_data = (uint8_t *)&context_data;
for(uint8_t device_id = 0; device_id < DEVICE_MANAGER_MAX_BONDS; device_id++)
{
dm_handle.device_id = device_id;
err_code = dm_application_context_get(&dm_handle,&app_context);
if(err_code == NRF_SUCCESS)
{
p_bond_table->app_bond_cnt[device_id] =*((uint32_t *)app_context.p_data);
p_bond_table->device_id[device_id] = device_id;
}
else if(err_code == (NRF_ERROR_INVALID_ADDR | DEVICE_MANAGER_ERR_BASE))
{
//No context available.
p_bond_table->app_bond_cnt[device_id] = NO_APP_CONTEXT;
p_bond_table->device_id[device_id] = device_id;
}
else if(err_code == DM_NO_APP_CONTEXT)
{
//set context as invalid
p_bond_table->app_bond_cnt[device_id] = INVALID_APP_CONTEXT;
p_bond_table->device_id[device_id] = device_id;
}
else
{
APP_ERROR_CHECK(err_code);
}
}
}
void app_bond_find(app_bond_table_t * p_bond_table,table_index_t * p_index)
{
p_index->mr_cnt_val = 0;
p_index->lr_cnt_val = NO_APP_CONTEXT;
for(uint8_t i = 0; i < DEVICE_MANAGER_MAX_BONDS; i++)
{
//Find most recently stored bond
if((p_index->mr_cnt_val < p_bond_table->app_bond_cnt[i]) &&
(p_bond_table->app_bond_cnt[i] != NO_APP_CONTEXT) &&
(p_bond_table->app_bond_cnt[i] != INVALID_APP_CONTEXT))
{
p_index->mr_cnt_val = p_bond_table->app_bond_cnt[i];
p_index->mr_index = i;
}
// Find least recently stored bond
if((p_index->lr_cnt_val > p_bond_table->app_bond_cnt[i]) &&
(p_bond_table->app_bond_cnt[i] != NO_APP_CONTEXT) &&
(p_bond_table->app_bond_cnt[i] != INVALID_APP_CONTEXT))
{
p_index->lr_cnt_val = p_bond_table->app_bond_cnt[i];
p_index->lr_index = i;
}
// Update bond context in case it is not valid for a particular device
if( p_bond_table->app_bond_cnt[i] == INVALID_APP_CONTEXT)
{
uint32_t err_code;
dm_handle_t dm_handle;
dm_application_context_t app_context;
p_bond_table->app_bond_cnt[i] = p_bond_table->app_bond_cnt[p_index->mr_index] + 1;
p_index->mr_cnt_val = p_bond_table->app_bond_cnt[i];
p_index->mr_index = i;
dm_handle.device_id = i;
dm_handle.appl_id = 0;
dm_handle.connection_id = 0;
app_context.p_data = (uint8_t *)&p_bond_table->app_bond_cnt[i];
app_context.len = sizeof(p_bond_table->app_bond_cnt[0]);
err_code = dm_application_context_set(&dm_handle,&app_context);
APP_ERROR_CHECK(err_code);
}
}
}
