Corrected KMP timer active check and security protocol address get

KMP timer active check is now made correctly. Added option to ask only
local or remote address to security protocol address get.

Author: Mika Leppänen

source/6LoWPAN/ws/ws_pae_lib.c

@@ -126,15 +126,18 @@ bool ws_pae_lib_kmp_timer_update(kmp_list_t *kmp_list, uint16_t ticks, ws_pae_li
         return false;
     }
 
+    bool timer_running = false;
+
     ns_list_foreach_safe(kmp_entry_t, entry, kmp_list) {
         if (entry->timer_running) {
             timeout(entry->kmp, ticks);
+            timer_running = true;
         } else {
             break;
         }
     }
 
-    return true;
+    return timer_running;
 }
 
 void ws_pae_lib_supp_list_init(supp_list_t *supp_list)

source/Security/kmp/kmp_api.c

@@ -240,8 +240,12 @@ static void kmp_sec_prot_eui64_addr_get(sec_prot_t *prot, uint8_t *local_eui64,
 
     kmp->service->addr_get(kmp->service, kmp, &local_addr, &remote_addr);
 
-    memcpy(local_eui64, kmp_address_eui_64_get(&local_addr), 8);
-    memcpy(remote_eui64, kmp_address_eui_64_get(&remote_addr), 8);
+    if (local_eui64) {
+        memcpy(local_eui64, kmp_address_eui_64_get(&local_addr), 8);
+    }
+    if (remote_eui64) {
+        memcpy(remote_eui64, kmp_address_eui_64_get(&remote_addr), 8);
+    }
 }
 
 void kmp_api_delete(kmp_api_t *kmp)