Interface down update

6lowpan, Thread and wi-sun interface down now call MLME_RESET(true) which disable, reset and free MAC memory before MAC user start clean own data.

Change-Id: I4032aca35ce2d21646219853f459118976314b30

Author: Juha Heiskanen

source/6LoWPAN/Bootstraps/Generic/protocol_6lowpan_bootstrap.c

@@ -1379,6 +1379,8 @@ static int8_t arm_6lowpan_bootstrap_down(protocol_interface_info_entry_t *cur)
     }
     cur->if_lowpan_security_params->mle_security_frame_counter = mle_service_security_get_frame_counter(cur->id);
     mle_service_interface_receiver_handler_update(cur->id, mle_6lowpan_message_handler);
+    // Reset MAC for safe upper layer memory free
+    protocol_mac_reset(cur);
     return nwk_6lowpan_down(cur);
 }
 #ifdef HAVE_6LOWPAN_ND

source/6LoWPAN/Bootstraps/Generic/protocol_6lowpan_interface.c

@@ -72,6 +72,15 @@
 #include "6LoWPAN/Fragmentation/cipv6_fragmenter.h"
 #include "libNET/src/net_load_balance_internal.h"
 
+void protocol_mac_reset(protocol_interface_info_entry_t *cur)
+{
+    if (cur->mac_api) {
+        mlme_reset_t reset;
+        reset.SetDefaultPIB = true;
+        cur->mac_api->mlme_req(cur->mac_api, MLME_RESET, &reset);
+    }
+}
+
 
 
 static int8_t set_6lowpan_nwk_down(protocol_interface_info_entry_t *cur)
@@ -96,15 +105,11 @@ static int8_t set_6lowpan_nwk_down(protocol_interface_info_entry_t *cur)
         }
 
         if (cur->interface_mode == INTERFACE_UP) {
-            if (cur->mac_api) {
-                mlme_reset_t reset;
-                reset.SetDefaultPIB = true;
-                cur->mac_parameters->pan_id = 0xffff;
-                cur->mac_parameters->SecurityEnabled = false;
-                cur->mac_parameters->security_frame_counter = 0;
-                cur->mac_parameters->mac_security_level = 0;
-                cur->mac_api->mlme_req(cur->mac_api, MLME_RESET, &reset);
-            }
+            cur->mac_parameters->pan_id = 0xffff;
+            cur->mac_parameters->SecurityEnabled = false;
+            cur->mac_parameters->security_frame_counter = 0;
+            cur->mac_parameters->mac_security_level = 0;
+            protocol_mac_reset(cur);
             cur->interface_mode = INTERFACE_IDLE;
             net_load_balance_internal_state_activate(cur, false);
         }

source/6LoWPAN/Bootstraps/protocol_6lowpan_interface.h

@@ -31,5 +31,7 @@ extern int8_t nwk_6lowpan_up(struct protocol_interface_info_entry *cur);
  */
 extern int8_t nwk_6lowpan_down(struct protocol_interface_info_entry *cur);
 
+extern void protocol_mac_reset(struct protocol_interface_info_entry *cur);
+
 
 #endif /* PROTOCOL_6LOWPAN_INTERFACE_H_ */

source/6LoWPAN/Thread/thread_common.c

@@ -240,6 +240,8 @@ int8_t thread_bootstrap_down(protocol_interface_info_entry_t *cur)
     tr_debug("SET thread Idle");
     //stop polling
     mac_data_poll_disable(cur);
+    // Reset MAC for safe upper layer memory free
+    protocol_mac_reset(cur);
     //Clean mle table
     thread_neighbor_list_clean(cur);
     // store frame counters

source/6LoWPAN/ws/ws_bootstrap.c

@@ -808,7 +808,8 @@ static int8_t ws_bootstrap_down(protocol_interface_info_entry_t *cur)
     }
 
     tr_info("Wi-SUN ifdown");
-
+    // Reset MAC for safe upper layer memory free
+    protocol_mac_reset(cur);
     // Reset WS information
     // ws_common_reset(cur)
     ws_llc_reset(cur);

test/nanostack/unittest/stub/protocol_6lowpan_interface_stub.c

@@ -75,3 +75,8 @@ int8_t nwk_6lowpan_down(protocol_interface_info_entry_t *cur)
 {
     return 0;
 }
+
+void protocol_mac_reset(struct protocol_interface_info_entry *cur)
+{
+
+}