/*
* \brief Configure and establish network connection
*
*/
void nd_tasklet_configure_and_connect_to_network(void)
{
int8_t status;
char *sec_mode;
// configure bootstrap
arm_nwk_interface_configure_6lowpan_bootstrap_set(
tasklet_data_ptr->network_interface_id, tasklet_data_ptr->mode,
NET_6LOWPAN_ND_WITH_MLE);
sec_mode = STR(MBED_MESH_API_6LOWPAN_ND_SECURITY_MODE);
if (strcmp(sec_mode, "PSK") == 0) {
tr_debug("Using PSK security mode.");
tasklet_data_ptr->sec_mode = NET_SEC_MODE_PSK_LINK_SECURITY;
tasklet_data_ptr->psk_sec_info.key_id = MBED_MESH_API_6LOWPAN_ND_PSK_KEY_ID;
memcpy(tasklet_data_ptr->psk_sec_info.security_key, (const uint8_t[16])MBED_MESH_API_6LOWPAN_ND_PSK_KEY, 16);
} else {
tr_debug("Link-layer security NOT enabled.");
tasklet_data_ptr->sec_mode = NET_SEC_MODE_NO_LINK_SECURITY;
}
// configure link layer security
arm_nwk_link_layer_security_mode(
tasklet_data_ptr->network_interface_id,
tasklet_data_ptr->sec_mode,
MBED_MESH_API_6LOWPAN_ND_SEC_LEVEL,
&tasklet_data_ptr->psk_sec_info);
// configure scan parameters
arm_nwk_6lowpan_link_scan_parameter_set(tasklet_data_ptr->network_interface_id, 5);
// configure scan channels
initialize_channel_list();
// Configure scan options (NULL disables filter)
arm_nwk_6lowpan_link_nwk_id_filter_for_nwk_scan(
tasklet_data_ptr->network_interface_id, NULL);
arm_nwk_6lowpan_link_panid_filter_for_nwk_scan(
tasklet_data_ptr->network_interface_id,
MBED_MESH_API_6LOWPAN_ND_PANID_FILTER);
status = arm_nwk_interface_up(tasklet_data_ptr->network_interface_id);
if (status >= 0) {
tasklet_data_ptr->tasklet_state = TASKLET_STATE_BOOTSTRAP_STARTED;
tr_info("Start 6LoWPAN ND Bootstrap");
} else {
tasklet_data_ptr->tasklet_state = TASKLET_STATE_BOOTSTRAP_FAILED;
tr_err("Bootstrap start failed, %d", status);
nd_tasklet_network_state_changed(MESH_BOOTSTRAP_START_FAILED);
}
}
/**
* \brief Network state event handler.
* \param event show network start response or current network state.
*
* - ARM_NWK_BOOTSTRAP_READY: Save NVK persistent data to NVM and Net role
* - ARM_NWK_NWK_SCAN_FAIL: Link Layer Active Scan Fail, Stack is Already at Idle state
* - ARM_NWK_IP_ADDRESS_ALLOCATION_FAIL: No ND Router at current Channel Stack is Already at Idle state
* - ARM_NWK_NWK_CONNECTION_DOWN: Connection to Access point is lost wait for Scan Result
* - ARM_NWK_NWK_PARENT_POLL_FAIL: Host should run net start without any PAN-id filter and all channels
* - ARM_NWK_AUHTENTICATION_FAIL: Pana Authentication fail, Stack is Already at Idle state
*/
void nd_tasklet_parse_network_event(arm_event_s *event)
{
arm_nwk_interface_status_type_e status = (arm_nwk_interface_status_type_e) event->event_data;
tr_debug("app_parse_network_event() %d", status);
switch (status) {
case ARM_NWK_BOOTSTRAP_READY:
/* Network is ready and node is connected to Access Point */
if (tasklet_data_ptr->tasklet_state != TASKLET_STATE_BOOTSTRAP_READY) {
tr_info("6LoWPAN ND bootstrap ready");
tasklet_data_ptr->tasklet_state = TASKLET_STATE_BOOTSTRAP_READY;
nd_tasklet_trace_bootstrap_info();
nd_tasklet_network_state_changed(MESH_CONNECTED);
}
break;
case ARM_NWK_NWK_SCAN_FAIL:
/* Link Layer Active Scan Fail, Stack is Already at Idle state */
tr_debug("Link Layer Scan Fail: No Beacons");
tasklet_data_ptr->tasklet_state = TASKLET_STATE_BOOTSTRAP_FAILED;
break;
case ARM_NWK_IP_ADDRESS_ALLOCATION_FAIL:
/* No ND Router at current Channel Stack is Already at Idle state */
tr_debug("ND Scan/ GP REG fail");
tasklet_data_ptr->tasklet_state = TASKLET_STATE_BOOTSTRAP_FAILED;
break;
case ARM_NWK_NWK_CONNECTION_DOWN:
/* Connection to Access point is lost wait for Scan Result */
tr_debug("ND/RPL scan new network");
tasklet_data_ptr->tasklet_state = TASKLET_STATE_BOOTSTRAP_FAILED;
break;
case ARM_NWK_NWK_PARENT_POLL_FAIL:
tasklet_data_ptr->tasklet_state = TASKLET_STATE_BOOTSTRAP_FAILED;
break;
case ARM_NWK_AUHTENTICATION_FAIL:
tr_debug("Network authentication fail");
tasklet_data_ptr->tasklet_state = TASKLET_STATE_BOOTSTRAP_FAILED;
break;
default:
tr_warn("Unknown event %d", status);
break;
}
if (tasklet_data_ptr->tasklet_state != TASKLET_STATE_BOOTSTRAP_READY) {
// Set 5s timer for new network scan
eventOS_event_timer_request(TIMER_EVENT_START_BOOTSTRAP,
ARM_LIB_SYSTEM_TIMER_EVENT,
tasklet_data_ptr->node_main_tasklet_id,
5000);
}
}
int8_t nd_tasklet_disconnect(bool send_cb)
{
int8_t status = -1;
if (tasklet_data_ptr != NULL) {
if (tasklet_data_ptr->network_interface_id != INVALID_INTERFACE_ID) {
status = arm_nwk_interface_down(tasklet_data_ptr->network_interface_id);
tasklet_data_ptr->network_interface_id = INVALID_INTERFACE_ID;
if (send_cb == true) {
nd_tasklet_network_state_changed(MESH_DISCONNECTED);
}
}
tasklet_data_ptr->mesh_api_cb = NULL;
}
return status;
}
