[mbed-os-5.15] Mesh interface global up is indicated always on bootstrap ready

This indicates e.g. to client that IP address has changed or connection
to network has been established.

Author: Mika Leppänen

features/nanostack/mbed-mesh-api/source/MeshInterfaceNanostack.cpp

@@ -161,6 +161,7 @@ void Nanostack::Interface::network_handler(mesh_connection_status_t status)
         }
     }
 
+    bool global_up = false;
 
     if (status == MESH_CONNECTED) {
         uint8_t temp_ipv6_global[16];
@@ -171,6 +172,7 @@ void Nanostack::Interface::network_handler(mesh_connection_status_t status)
         if (arm_net_address_get(interface_id, ADDR_IPV6_GP, temp_ipv6_global) == 0
                 && (memcmp(temp_ipv6_global, temp_ipv6_local, 16) != 0)) {
             _connect_status = NSAPI_STATUS_GLOBAL_UP;
+            global_up = true;
         }
     } else if (status == MESH_CONNECTED_LOCAL) {
         _connect_status = NSAPI_STATUS_LOCAL_UP;
@@ -182,9 +184,9 @@ void Nanostack::Interface::network_handler(mesh_connection_status_t status)
         _connect_status = NSAPI_STATUS_DISCONNECTED;
     }
 
-    if (_connection_status_cb && _previous_connection_status != _connect_status
-            && (_previous_connection_status != NSAPI_STATUS_GLOBAL_UP || status != MESH_BOOTSTRAP_STARTED)
-            && (_previous_connection_status != NSAPI_STATUS_CONNECTING || status != MESH_BOOTSTRAP_START_FAILED)) {
+    if (_connection_status_cb && (global_up || (_previous_connection_status != _connect_status
+                                                && (_previous_connection_status != NSAPI_STATUS_GLOBAL_UP || status != MESH_BOOTSTRAP_STARTED)
+                                                && (_previous_connection_status != NSAPI_STATUS_CONNECTING || status != MESH_BOOTSTRAP_START_FAILED)))) {
         _connection_status_cb(NSAPI_EVENT_CONNECTION_STATUS_CHANGE, _connect_status);
     }
     _previous_connection_status = _connect_status;

features/nanostack/mbed-mesh-api/source/wisun_tasklet.c

@@ -176,11 +176,9 @@ static void wisun_tasklet_parse_network_event(arm_event_s *event)
     switch (status) {
         case ARM_NWK_BOOTSTRAP_READY:
             /* Network is ready and node is connected to Access Point */
-            if (wisun_tasklet_data_ptr->tasklet_state != TASKLET_STATE_BOOTSTRAP_READY) {
-                tr_info("Wi-SUN bootstrap ready");
-                wisun_tasklet_data_ptr->tasklet_state = TASKLET_STATE_BOOTSTRAP_READY;
-                wisun_tasklet_network_state_changed(MESH_CONNECTED);
-            }
+            tr_info("Wi-SUN bootstrap ready");
+            wisun_tasklet_data_ptr->tasklet_state = TASKLET_STATE_BOOTSTRAP_READY;
+            wisun_tasklet_network_state_changed(MESH_CONNECTED);
             break;
         case ARM_NWK_NWK_SCAN_FAIL:
             /* Link Layer Active Scan Fail, Stack is Already at Idle state */