replace : iotivity -> iotivity-sec
[platform/upstream/iotivity.git] / resource / csdk / connectivity / src / bt_le_adapter / caleadapter.c
old mode 100644 (file)
new mode 100755 (executable)
index e459eb0..3176f83
 
 #include "caleinterface.h"
 #include "cacommon.h"
-#include "camutex.h"
+#include "octhread.h"
 #include "caadapterutils.h"
+#ifdef __WITH_DTLS__
+#include "ca_adapter_net_ssl.h"
+#endif
 #ifndef SINGLE_THREAD
 #include "caqueueingthread.h"
 #endif
@@ -38,7 +41,7 @@
 #include "oic_malloc.h"
 #include "oic_string.h"
 #include "caremotehandler.h"
-#include "pdu.h"
+#include <coap/pdu.h>
 
 /**
  * Logging tag for module name.
@@ -48,8 +51,7 @@
 /**
  * Stores information of all the senders.
  *
- * This structure will be used to track and defragment all incoming
- * data packet.
+ * This structure will be used to track and defragment all incoming data packet.
  */
 typedef struct
 {
@@ -68,6 +70,11 @@ typedef enum
 } CABLEAdapter_t;
 
 /**
+ * mtu size to use in fragmentation logic.
+ * default value is 20 byte.
+ */
+static uint16_t g_mtuSize = CA_DEFAULT_BLE_MTU_SIZE;
+/**
  * Callback to provide the status of the network change to CA layer.
  */
 static CAAdapterChangeCallback g_networkCallback = NULL;
@@ -93,23 +100,27 @@ static char g_localBLEAddress[18] = { 0 };
  */
 static CABLEAdapter_t g_adapterType = ADAPTER_EMPTY;
 
+#ifdef __WITH_DTLS__
+static CADataType_t g_dataType = CA_REQUEST_DATA;
+#endif
+
 /**
  * Mutex to synchronize the task to be executed on the GattServer
  * function calls.
  */
-static ca_mutex g_bleIsServerMutex = NULL;
+static oc_mutex g_bleIsServerMutex = NULL;
 
 /**
  * Mutex to synchronize the callback to be called for the network
  * changes.
  */
-static ca_mutex g_bleNetworkCbMutex = NULL;
+static oc_mutex g_bleNetworkCbMutex = NULL;
 
 /**
  * Mutex to synchronize the updates of the local LE address of the
  * adapter.
  */
-static ca_mutex g_bleLocalAddressMutex = NULL;
+static oc_mutex g_bleLocalAddressMutex = NULL;
 
 /**
  * Reference to thread pool.
@@ -119,28 +130,33 @@ static ca_thread_pool_t g_bleAdapterThreadPool = NULL;
 /**
  * Mutex to synchronize the task to be pushed to thread pool.
  */
-static ca_mutex g_bleAdapterThreadPoolMutex = NULL;
+static oc_mutex g_bleAdapterThreadPoolMutex = NULL;
 
 /**
  * Mutex to synchronize the queing of the data from SenderQueue.
  */
-static ca_mutex g_bleClientSendDataMutex = NULL;
+static oc_mutex g_bleClientSendDataMutex = NULL;
 
 /**
  * Mutex to synchronize the queing of the data from ReceiverQueue.
  */
-static ca_mutex g_bleReceiveDataMutex = NULL;
+static oc_mutex g_bleClientReceiveDataMutex = NULL;
 
 /**
  * Mutex to synchronize the queing of the data from SenderQueue.
  */
-static ca_mutex g_bleServerSendDataMutex = NULL;
+static oc_mutex g_bleServerSendDataMutex = NULL;
+
+/**
+ * Mutex to synchronize the queing of the data from ReceiverQueue.
+ */
+static oc_mutex g_bleServerReceiveDataMutex = NULL;
 
 /**
  * Mutex to synchronize the callback to be called for the
  * adapterReqResponse.
  */
-static ca_mutex g_bleAdapterReqRespCbMutex = NULL;
+static oc_mutex g_bleAdapterReqRespCbMutex = NULL;
 
 /**
  * Callback to be called when network packet received from either
@@ -153,6 +169,14 @@ static CANetworkPacketReceivedCallback g_networkPacketReceivedCallback = NULL;
  */
 static CAErrorHandleCallback g_errorHandler = NULL;
 
+#ifdef __WITH_DTLS__
+static void CALESecureReceiveDataCB(const CASecureEndpoint_t *endpoint,
+                                 const void *data, size_t dataLength);
+
+static ssize_t CALESecureSendDataCB(CAEndpoint_t *endpoint,
+                             const void *data, size_t dataLength);
+#endif
+
 #ifdef SINGLE_THREAD
 /**
  * Pointer to defragment received data from single threaded routine.
@@ -263,31 +287,44 @@ static void CALEErrorHandler(const char *remoteAddress,
 
 #ifndef SINGLE_THREAD
 /**
- * Stop condition of recvhandler.
+ * Stop condition of Server recvhandler.
  */
-static bool g_dataBleReceiverHandlerState = false;
+static bool g_dataBleServerReceiverHandlerState = false;
 
 /**
- * Sender information.
+ * Stop condition of Client recvhandler.
+ */
+static bool g_dataBleClientReceiverHandlerState = false;
+
+/**
+ * Sender information of Server.
  */
 static u_arraylist_t *g_bleServerSenderInfo = NULL;
 
+/**
+ * Sender information of Client.
+ */
 static u_arraylist_t *g_bleClientSenderInfo = NULL;
 
 /**
+ * Queue to process the outgoing packets from GATTServer.
+ */
+static CAQueueingThread_t *g_bleServerSendQueueHandle = NULL;
+
+/**
  * Queue to process the outgoing packets from GATTClient.
  */
 static CAQueueingThread_t *g_bleClientSendQueueHandle = NULL;
 
 /**
- * Queue to process the incoming packets.
+ * Queue to process the incoming packets from GATTServer.
  */
-static CAQueueingThread_t *g_bleReceiverQueue = NULL;
+static CAQueueingThread_t *g_bleServerReceiverQueue = NULL;
 
 /**
- * Queue to process the outgoing packets from GATTServer.
+ * Queue to process the incoming packets from GATTClient.
  */
-static CAQueueingThread_t *g_bleServerSendQueueHandle = NULL;
+static CAQueueingThread_t *g_bleClientReceiverQueue = NULL;
 
 /**
  * This function will be associated with the sender queue for
@@ -316,16 +353,39 @@ static void CALEServerSendDataThread(void *threadData);
 static void CALEClientSendDataThread(void *threadData);
 
 /**
- * This function will be associated with the receiver queue.
- *
  * This function will defragment the received data from each sender
  * respectively and will send it up to CA layer.  Respective sender's
  * header will provide the length of the data sent.
  *
+ * @param[in] threadData   Data pushed to the queue which contains the
+ *                         info about RemoteEndpoint and Data.
+ * @param[in] receiverType Whether receiver is server or client.
+ */
+static void CALEDataReceiverHandler(void *threadData, CABLEAdapter_t receiverType);
+
+/**
+ * This function will be associated with the receiver queue for
+ * GattServer.
+ *
+ * This function will call the function CALEDataReceiverHandler()
+ * with server type to defragment the received data.
+ *
  * @param[in] threadData Data pushed to the queue which contains the
  *                       info about RemoteEndpoint and Data.
  */
-static void CALEDataReceiverHandler(void *threadData);
+static void CALEServerDataReceiverHandler(void *threadData);
+
+/**
+ * This function will be associated with the receiver queue for
+ * GattClient.
+ *
+ * This function will call the function CALEDataReceiverHandler()
+ * with client type to defragment the received data.
+ *
+ * @param[in] threadData Data pushed to the queue which contains the
+ *                       info about RemoteEndpoint and Data.
+ */
+static void CALEClientDataReceiverHandler(void *threadData);
 
 /**
  * This function will stop all queues created for GattServer and
@@ -396,8 +456,22 @@ static CAResult_t CAInitLEClientSenderQueue();
 
 /**
  * This function will initialize the Receiver queue for
- * LEAdapter. This will initialize the queue to process the function
- * CABLEDataReceiverHandler() when ever the task is added to this
+ * GattServer. This will initialize the queue to process the function
+ * CALEServerDataReceiverHandler() when ever the task is added to this
+ * queue.
+ *
+ * @return ::CA_STATUS_OK or Appropriate error code
+ * @retval ::CA_STATUS_OK  Successful
+ * @retval ::CA_STATUS_INVALID_PARAM  Invalid input arguments
+ * @retval ::CA_STATUS_FAILED Operation failed
+ *
+ */
+static CAResult_t CAInitLEServerReceiverQueue();
+
+/**
+ * This function will initialize the Receiver queue for
+ * GattClient. This will initialize the queue to process the function
+ * CALEClientDataReceiverHandler() when ever the task is added to this
  * queue.
  *
  * @return ::CA_STATUS_OK or Appropriate error code
@@ -406,7 +480,7 @@ static CAResult_t CAInitLEClientSenderQueue();
  * @retval ::CA_STATUS_FAILED Operation failed
  *
  */
-static CAResult_t CAInitLEReceiverQueue();
+static CAResult_t CAInitLEClientReceiverQueue();
 
 /**
  * This function will create the Data required to send it in the
@@ -449,7 +523,7 @@ static void CALEDataDestroyer(void *data, uint32_t size);
  * @param[in] address        target address to remove data in queue.
  */
 static void CALERemoveSendQueueData(CAQueueingThread_t *queueHandle,
-                                    ca_mutex mutex,
+                                    oc_mutex mutex,
                                     const char* address);
 
 /**
@@ -495,15 +569,13 @@ static CAResult_t CALEGetPortsFromSenderInfo(const char *leAddress,
 
 static CAResult_t CAInitLEServerQueues()
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN");
-
-    ca_mutex_lock(g_bleAdapterThreadPoolMutex);
+    oc_mutex_lock(g_bleAdapterThreadPoolMutex);
 
     CAResult_t result = CAInitLEServerSenderQueue();
     if (CA_STATUS_OK != result)
     {
         OIC_LOG(ERROR, CALEADAPTER_TAG, "CAInitBleServerSenderQueue failed");
-        ca_mutex_unlock(g_bleAdapterThreadPoolMutex);
+        oc_mutex_unlock(g_bleAdapterThreadPoolMutex);
         return CA_STATUS_FAILED;
     }
 
@@ -511,38 +583,34 @@ static CAResult_t CAInitLEServerQueues()
     if (!g_bleServerSenderInfo)
     {
         OIC_LOG(ERROR, CALEADAPTER_TAG, "memory allocation failed!");
-        ca_mutex_unlock(g_bleAdapterThreadPoolMutex);
+        oc_mutex_unlock(g_bleAdapterThreadPoolMutex);
         return CA_MEMORY_ALLOC_FAILED;
     }
 
-    result = CAInitLEReceiverQueue();
+    result = CAInitLEServerReceiverQueue();
     if (CA_STATUS_OK != result)
     {
-        OIC_LOG(ERROR, CALEADAPTER_TAG, "CAInitLEReceiverQueue failed");
+        OIC_LOG(ERROR, CALEADAPTER_TAG, "CAInitLEServerReceiverQueue failed");
         u_arraylist_free(&g_bleServerSenderInfo);
-        ca_mutex_unlock(g_bleAdapterThreadPoolMutex);
+        oc_mutex_unlock(g_bleAdapterThreadPoolMutex);
         return CA_STATUS_FAILED;
     }
 
-    g_dataBleReceiverHandlerState = true;
+    g_dataBleServerReceiverHandlerState = true;
 
-    ca_mutex_unlock(g_bleAdapterThreadPoolMutex);
-
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
+    oc_mutex_unlock(g_bleAdapterThreadPoolMutex);
     return CA_STATUS_OK;
 }
 
 static CAResult_t CAInitLEClientQueues()
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN");
-
-    ca_mutex_lock(g_bleAdapterThreadPoolMutex);
+    oc_mutex_lock(g_bleAdapterThreadPoolMutex);
 
     CAResult_t result = CAInitLEClientSenderQueue();
     if (CA_STATUS_OK != result)
     {
         OIC_LOG(ERROR, CALEADAPTER_TAG, "CAInitBleClientSenderQueue failed");
-        ca_mutex_unlock(g_bleAdapterThreadPoolMutex);
+        oc_mutex_unlock(g_bleAdapterThreadPoolMutex);
         return CA_STATUS_FAILED;
     }
 
@@ -550,71 +618,108 @@ static CAResult_t CAInitLEClientQueues()
     if (!g_bleClientSenderInfo)
     {
         OIC_LOG(ERROR, CALEADAPTER_TAG, "memory allocation failed!");
-        ca_mutex_unlock(g_bleAdapterThreadPoolMutex);
+        oc_mutex_unlock(g_bleAdapterThreadPoolMutex);
         return CA_MEMORY_ALLOC_FAILED;
     }
 
-    result = CAInitLEReceiverQueue();
+    result = CAInitLEClientReceiverQueue();
     if (CA_STATUS_OK != result)
     {
-        OIC_LOG(ERROR, CALEADAPTER_TAG, "CAInitLEReceiverQueue failed");
+        OIC_LOG(ERROR, CALEADAPTER_TAG, "CAInitLEClientReceiverQueue failed");
         u_arraylist_free(&g_bleClientSenderInfo);
-        ca_mutex_unlock(g_bleAdapterThreadPoolMutex);
+        oc_mutex_unlock(g_bleAdapterThreadPoolMutex);
         return CA_STATUS_FAILED;
     }
 
-    g_dataBleReceiverHandlerState = true;
+    g_dataBleClientReceiverHandlerState = true;
+
+    oc_mutex_unlock(g_bleAdapterThreadPoolMutex);
+    return CA_STATUS_OK;
+}
+
+static CAResult_t CAInitLEServerReceiverQueue()
+{
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "%s", __func__);
+    // Check if the message queue is already initialized
+    if (g_bleServerReceiverQueue)
+    {
+        OIC_LOG(DEBUG, CALEADAPTER_TAG, "Already queue is initialized!");
+        return CA_STATUS_OK;
+    }
+
+    // Create recv message queue
+    g_bleServerReceiverQueue = (CAQueueingThread_t *) OICMalloc(sizeof(CAQueueingThread_t));
+    if (!g_bleServerReceiverQueue)
+    {
+        OIC_LOG(ERROR, CALEADAPTER_TAG, "Memory allocation failed!");
+        return CA_MEMORY_ALLOC_FAILED;
+    }
 
-    ca_mutex_unlock(g_bleAdapterThreadPoolMutex);
+    if (CA_STATUS_OK != CAQueueingThreadInitialize(g_bleServerReceiverQueue,
+                                                   g_bleAdapterThreadPool,
+                                                   CALEServerDataReceiverHandler,
+                                                   CALEDataDestroyer))
+    {
+        OIC_LOG(ERROR, CALEADAPTER_TAG, "Failed to Initialize server receiver queue thread");
+        OICFree(g_bleServerReceiverQueue);
+        g_bleServerReceiverQueue = NULL;
+        return CA_STATUS_FAILED;
+    }
+
+    if (CA_STATUS_OK != CAQueueingThreadStart(g_bleServerReceiverQueue))
+    {
+        OIC_LOG(ERROR, CALEADAPTER_TAG, "ca_thread_pool_add_task failed ");
+        OICFree(g_bleServerReceiverQueue);
+        g_bleServerReceiverQueue = NULL;
+        return CA_STATUS_FAILED;
+    }
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
     return CA_STATUS_OK;
 }
 
-static CAResult_t CAInitLEReceiverQueue()
+static CAResult_t CAInitLEClientReceiverQueue()
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN - CAInitLEReceiverQueue");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "%s", __func__);
     // Check if the message queue is already initialized
-    if (g_bleReceiverQueue)
+    if (g_bleClientReceiverQueue)
     {
         OIC_LOG(DEBUG, CALEADAPTER_TAG, "Already queue is initialized!");
         return CA_STATUS_OK;
     }
 
     // Create recv message queue
-    g_bleReceiverQueue = (CAQueueingThread_t *) OICMalloc(sizeof(CAQueueingThread_t));
-    if (!g_bleReceiverQueue)
+    g_bleClientReceiverQueue = (CAQueueingThread_t *) OICMalloc(sizeof(CAQueueingThread_t));
+    if (!g_bleClientReceiverQueue)
     {
         OIC_LOG(ERROR, CALEADAPTER_TAG, "Memory allocation failed!");
         return CA_MEMORY_ALLOC_FAILED;
     }
 
-    if (CA_STATUS_OK != CAQueueingThreadInitialize(g_bleReceiverQueue,
+    if (CA_STATUS_OK != CAQueueingThreadInitialize(g_bleClientReceiverQueue,
                                                    g_bleAdapterThreadPool,
-                                                   CALEDataReceiverHandler,
+                                                   CALEClientDataReceiverHandler,
                                                    CALEDataDestroyer))
     {
-        OIC_LOG(ERROR, CALEADAPTER_TAG, "Failed to Initialize send queue thread");
-        OICFree(g_bleReceiverQueue);
-        g_bleReceiverQueue = NULL;
+        OIC_LOG(ERROR, CALEADAPTER_TAG, "Failed to Initialize client receiver queue thread");
+        OICFree(g_bleClientReceiverQueue);
+        g_bleClientReceiverQueue = NULL;
         return CA_STATUS_FAILED;
     }
 
-    if (CA_STATUS_OK != CAQueueingThreadStart(g_bleReceiverQueue))
+    if (CA_STATUS_OK != CAQueueingThreadStart(g_bleClientReceiverQueue))
     {
         OIC_LOG(ERROR, CALEADAPTER_TAG, "ca_thread_pool_add_task failed ");
-        OICFree(g_bleReceiverQueue);
-        g_bleReceiverQueue = NULL;
+        OICFree(g_bleClientReceiverQueue);
+        g_bleClientReceiverQueue = NULL;
         return CA_STATUS_FAILED;
     }
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
     return CA_STATUS_OK;
 }
 
 static CAResult_t CAInitLEServerSenderQueue()
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN - CAInitLEServerSenderQueue");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "%s", __func__);
     // Check if the message queue is already initialized
     if (g_bleServerSendQueueHandle)
     {
@@ -641,7 +746,6 @@ static CAResult_t CAInitLEServerSenderQueue()
         return CA_STATUS_FAILED;
     }
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
     return CA_STATUS_OK;
 }
 
@@ -670,7 +774,7 @@ static void CALEClearSenderInfo()
 
 static CAResult_t CAInitLEClientSenderQueue()
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN - CAInitLEClientSenderQueue");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "%s", __func__);
 
     if (g_bleClientSendQueueHandle)
     {
@@ -695,29 +799,32 @@ static CAResult_t CAInitLEClientSenderQueue()
         g_bleClientSendQueueHandle = NULL;
         return CA_STATUS_FAILED;
     }
-
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT - CAInitLEClientSenderQueue");
     return CA_STATUS_OK;
 }
 
 static void CAStopLEQueues()
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN - CAStopLEQueues");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN %s", __func__);
+
+    oc_mutex_lock(g_bleServerReceiveDataMutex);
+    if (NULL != g_bleServerReceiverQueue)
+    {
+        CAQueueingThreadStop(g_bleServerReceiverQueue);
+    }
+    oc_mutex_unlock(g_bleServerReceiveDataMutex);
 
-    ca_mutex_lock(g_bleReceiveDataMutex);
-    if (NULL != g_bleReceiverQueue)
+    oc_mutex_lock(g_bleClientReceiveDataMutex);
+    if (NULL != g_bleClientReceiverQueue)
     {
-        CAQueueingThreadStop(g_bleReceiverQueue);
+        CAQueueingThreadStop(g_bleClientReceiverQueue);
     }
-    ca_mutex_unlock(g_bleReceiveDataMutex);
+    oc_mutex_unlock(g_bleClientReceiveDataMutex);
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT - CAStopLEQueues");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "OUT %s", __func__);
 }
 
 static void CATerminateLEQueues()
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN");
-
     CAQueueingThreadDestroy(g_bleClientSendQueueHandle);
     OICFree(g_bleClientSendQueueHandle);
     g_bleClientSendQueueHandle = NULL;
@@ -726,13 +833,15 @@ static void CATerminateLEQueues()
     OICFree(g_bleServerSendQueueHandle);
     g_bleServerSendQueueHandle = NULL;
 
-    CAQueueingThreadDestroy(g_bleReceiverQueue);
-    OICFree(g_bleReceiverQueue);
-    g_bleReceiverQueue = NULL;
+    CAQueueingThreadDestroy(g_bleServerReceiverQueue);
+    OICFree(g_bleServerReceiverQueue);
+    g_bleServerReceiverQueue = NULL;
 
-    CALEClearSenderInfo();
+    CAQueueingThreadDestroy(g_bleClientReceiverQueue);
+    OICFree(g_bleClientReceiverQueue);
+    g_bleClientReceiverQueue = NULL;
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
+    CALEClearSenderInfo();
 }
 
 static CAResult_t CALEGetSenderInfo(const char *leAddress,
@@ -777,35 +886,51 @@ static CAResult_t CALEGetSenderInfo(const char *leAddress,
     return CA_STATUS_FAILED;
 }
 
-static void CALEDataReceiverHandler(void *threadData)
+static void CALEDataReceiverHandler(void *threadData, CABLEAdapter_t receiverType)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN - CALEDataReceiverHandler");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "%s", __func__);
 
-    ca_mutex_lock(g_bleReceiveDataMutex);
+    oc_mutex bleReceiveDataMutex = NULL;
+    bool dataBleReceiverHandlerState = false;
 
-    if (g_dataBleReceiverHandlerState)
+    switch (receiverType)
     {
-        OIC_LOG(DEBUG, CALEADAPTER_TAG, "checking for DE Fragmentation");
+        case ADAPTER_CLIENT:
+            bleReceiveDataMutex = g_bleClientReceiveDataMutex;
+            dataBleReceiverHandlerState = g_dataBleClientReceiverHandlerState;
+            break;
+        case ADAPTER_SERVER:
+            bleReceiveDataMutex = g_bleServerReceiveDataMutex;
+            dataBleReceiverHandlerState = g_dataBleServerReceiverHandlerState;
+            break;
+        default:
+            OIC_LOG_V(ERROR, CALEADAPTER_TAG, "Unsupported receiver type : %d", receiverType);
+            return;
+    }
+
+    oc_mutex_lock(bleReceiveDataMutex);
 
+    if (dataBleReceiverHandlerState)
+    {
         CALEData_t *bleData = (CALEData_t *) threadData;
         if (!bleData)
         {
             OIC_LOG(DEBUG, CALEADAPTER_TAG, "Invalid bleData!");
-            ca_mutex_unlock(g_bleReceiveDataMutex);
+            oc_mutex_unlock(bleReceiveDataMutex);
             return;
         }
 
         if (!(bleData->senderInfo))
         {
             OIC_LOG(ERROR, CALEADAPTER_TAG, "sender info is not available");
-            ca_mutex_unlock(g_bleReceiveDataMutex);
+            oc_mutex_unlock(bleReceiveDataMutex);
             return;
         }
 
         if (!(bleData->remoteEndpoint))
         {
-            OIC_LOG(ERROR, CALEADAPTER_TAG, "Client RemoteEndPoint NULL!!");
-            ca_mutex_unlock(g_bleReceiveDataMutex);
+            OIC_LOG(ERROR, CALEADAPTER_TAG, "RemoteEndPoint NULL!!");
+            oc_mutex_unlock(bleReceiveDataMutex);
             return;
         }
 
@@ -819,7 +944,7 @@ static void CALEDataReceiverHandler(void *threadData)
         uint16_t destPort = 0;
 
         CAParseHeader(bleData->data, &startFlag, &sourcePort, &secureFlag, &destPort);
-        OIC_LOG_V(DEBUG, CALEADAPTER_TAG,
+        OIC_LOG_V(INFO, CALEADAPTER_TAG,
                   "header info: startFlag[%X] sourcePort[%d] secureFlag[%X] destPort[%d]",
                   startFlag, sourcePort, secureFlag, destPort);
 
@@ -828,7 +953,7 @@ static void CALEDataReceiverHandler(void *threadData)
             OIC_LOG_V(ERROR, CALEADAPTER_TAG,
                       "this packet is not valid for this app(port mismatch[mine:%d, packet:%d])",
                       g_localBLESourcePort, destPort);
-            ca_mutex_unlock(g_bleReceiveDataMutex);
+            oc_mutex_unlock(bleReceiveDataMutex);
             return;
         }
 
@@ -866,7 +991,7 @@ static void CALEDataReceiverHandler(void *threadData)
             else
             {
                 OIC_LOG(ERROR, CALEADAPTER_TAG, "This packet is wrong packet! ignore.");
-                ca_mutex_unlock(g_bleReceiveDataMutex);
+                oc_mutex_unlock(bleReceiveDataMutex);
                 return;
             }
 
@@ -874,7 +999,7 @@ static void CALEDataReceiverHandler(void *threadData)
             if (!newSender)
             {
                 OIC_LOG(ERROR, CALEADAPTER_TAG, "Memory allocation failed for new sender");
-                ca_mutex_unlock(g_bleReceiveDataMutex);
+                oc_mutex_unlock(bleReceiveDataMutex);
                 return;
             }
             newSender->recvDataLen = 0;
@@ -890,15 +1015,15 @@ static void CALEDataReceiverHandler(void *threadData)
             {
                 OIC_LOG(ERROR, CALEADAPTER_TAG, "Total Data Length is parsed as 0!!!");
                 OICFree(newSender);
-                ca_mutex_unlock(g_bleReceiveDataMutex);
+                oc_mutex_unlock(bleReceiveDataMutex);
                 return;
             }
 
             size_t dataOnlyLen =
                 bleData->dataLen - (CA_BLE_HEADER_SIZE + CA_BLE_LENGTH_HEADER_SIZE);
-            OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "Total data to be accumulated [%u] bytes",
+            OIC_LOG_V(INFO, CALEADAPTER_TAG, "Total data to be accumulated [%u] bytes",
                       newSender->totalDataLen);
-            OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "data received in the first packet [%u] bytes",
+            OIC_LOG_V(INFO, CALEADAPTER_TAG, "data received in the first packet [%zu] bytes",
                       dataOnlyLen);
 
             newSender->defragData = OICCalloc(newSender->totalDataLen + 1,
@@ -908,12 +1033,19 @@ static void CALEDataReceiverHandler(void *threadData)
             {
                 OIC_LOG(ERROR, CALEADAPTER_TAG, "defragData is NULL!");
                 OICFree(newSender);
-                ca_mutex_unlock(g_bleReceiveDataMutex);
+                oc_mutex_unlock(bleReceiveDataMutex);
                 return;
             }
+            CATransportFlags_t flags = CA_DEFAULT_FLAGS;
+#ifdef __WITH_DTLS__
+            if (CA_BLE_PACKET_SECURE == secureFlag)
+            {
+                flags |= CA_SECURE;
+            }
+#endif
 
             const char *remoteAddress = bleData->remoteEndpoint->addr;
-            newSender->remoteEndpoint = CACreateEndpointObject(CA_DEFAULT_FLAGS,
+            newSender->remoteEndpoint = CACreateEndpointObject(flags,
                                                                CA_ADAPTER_GATT_BTLE,
                                                                remoteAddress,
                                                                bleData->remoteEndpoint->port);
@@ -923,7 +1055,7 @@ static void CALEDataReceiverHandler(void *threadData)
                 OIC_LOG(ERROR, CALEADAPTER_TAG, "remoteEndpoint is NULL!");
                 OICFree(newSender->defragData);
                 OICFree(newSender);
-                ca_mutex_unlock(g_bleReceiveDataMutex);
+                oc_mutex_unlock(bleReceiveDataMutex);
                 return;
             }
 
@@ -933,7 +1065,7 @@ static void CALEDataReceiverHandler(void *threadData)
                 OICFree(newSender->defragData);
                 CAFreeEndpoint(newSender->remoteEndpoint);
                 OICFree(newSender);
-                ca_mutex_unlock(g_bleReceiveDataMutex);
+                oc_mutex_unlock(bleReceiveDataMutex);
                 return;
             }
             memcpy(newSender->defragData,
@@ -954,7 +1086,7 @@ static void CALEDataReceiverHandler(void *threadData)
                 OICFree(newSender->defragData);
                 CAFreeEndpoint(newSender->remoteEndpoint);
                 OICFree(newSender);
-                ca_mutex_unlock(g_bleReceiveDataMutex);
+                oc_mutex_unlock(bleReceiveDataMutex);
                 return;
             }
             senderInfo = newSender;
@@ -965,27 +1097,27 @@ static void CALEDataReceiverHandler(void *threadData)
             if (senderInfo->recvDataLen + dataOnlyLen > senderInfo->totalDataLen)
             {
                 OIC_LOG_V(ERROR, CALEADAPTER_TAG,
-                          "Data Length exceeding error!! Receiving [%d] total length [%d]",
+                          "Data Length exceeding error!! Receiving [%zu] total length [%u]",
                           senderInfo->recvDataLen + dataOnlyLen, senderInfo->totalDataLen);
                 u_arraylist_remove(bleData->senderInfo, senderIndex);
                 OICFree(senderInfo->defragData);
                 OICFree(senderInfo);
-                ca_mutex_unlock(g_bleReceiveDataMutex);
+                oc_mutex_unlock(bleReceiveDataMutex);
                 return;
             }
-            OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "Copying the data of length [%d]",
+            OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "Copying the data of length [%zu]",
                       dataOnlyLen);
             memcpy(senderInfo->defragData + senderInfo->recvDataLen,
                    bleData->data + CA_BLE_HEADER_SIZE,
                    dataOnlyLen);
             senderInfo->recvDataLen += dataOnlyLen;
-            OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "totalDatalength  [%d] received Datalen [%d]",
-                                                senderInfo->totalDataLen, senderInfo->recvDataLen);
+            OIC_LOG_V(INFO, CALEADAPTER_TAG, "totalDatalength  [%d] received Datalen [%d]",
+                      senderInfo->totalDataLen, senderInfo->recvDataLen);
         }
 
         if (senderInfo->totalDataLen == senderInfo->recvDataLen)
         {
-            ca_mutex_lock(g_bleAdapterReqRespCbMutex);
+            oc_mutex_lock(g_bleAdapterReqRespCbMutex);
             if (NULL == g_networkPacketReceivedCallback)
             {
                 OIC_LOG(ERROR, CALEADAPTER_TAG, "gReqRespCallback is NULL!");
@@ -993,43 +1125,109 @@ static void CALEDataReceiverHandler(void *threadData)
                 u_arraylist_remove(bleData->senderInfo, senderIndex);
                 OICFree(senderInfo->defragData);
                 OICFree(senderInfo);
-                ca_mutex_unlock(g_bleAdapterReqRespCbMutex);
-                ca_mutex_unlock(g_bleReceiveDataMutex);
+                oc_mutex_unlock(g_bleAdapterReqRespCbMutex);
+                oc_mutex_unlock(bleReceiveDataMutex);
                 return;
             }
 
-            OIC_LOG(DEBUG, CALEADAPTER_TAG, "[CALEDataReceiverHandler] Sending data up !");
+            OIC_LOG(DEBUG, CALEADAPTER_TAG, "[CALEDataReceiverHandler] Received data up !");
 
             const CASecureEndpoint_t tmp =
                 {
                     .endpoint = *senderInfo->remoteEndpoint
                 };
 
-            g_networkPacketReceivedCallback(&tmp,
-                                            senderInfo->defragData,
-                                            senderInfo->recvDataLen);
-            ca_mutex_unlock(g_bleAdapterReqRespCbMutex);
+            OIC_LOG_V(INFO, CALEADAPTER_TAG, "endpoint flags : %d", tmp.endpoint.flags);
+#ifdef __WITH_DTLS__
+            if (CA_SECURE & tmp.endpoint.flags)
+            {
+                OIC_LOG(DEBUG, CALEADAPTER_TAG, "Secure data received");
+                switch (receiverType)
+                {
+                    case ADAPTER_CLIENT:
+                        g_dataType = CA_REQUEST_DATA;
+                        break;
+                    case ADAPTER_SERVER:
+                        g_dataType = CA_RESPONSE_DATA;
+                        break;
+                    default:
+                        OIC_LOG_V(ERROR, CALEADAPTER_TAG, "Unsupported rcvr type:%d",receiverType);
+                        oc_mutex_unlock(g_bleAdapterReqRespCbMutex);
+                        u_arraylist_remove(bleData->senderInfo, senderIndex);
+                        senderInfo->remoteEndpoint = NULL;
+                        senderInfo->defragData = NULL;
+                        OICFree(senderInfo);
+                        oc_mutex_unlock(bleReceiveDataMutex);
+                        return;
+                }
+
+                if (CA_STATUS_FAILED == CAdecryptSsl(&tmp,
+                                                senderInfo->defragData,
+                                                senderInfo->recvDataLen))
+                {
+                    OIC_LOG(ERROR, CALEADAPTER_TAG, "CAdecryptSsl failed");
+                }
+                else
+                {
+                    OIC_LOG(DEBUG, CALEADAPTER_TAG, "CAdecryptSsl successed");
+                }
+                OICFree(senderInfo->defragData);
+            }
+            else
+            {
+#endif
+                OIC_LOG(INFO, CALEADAPTER_TAG, "Non-Secure data received");
+                g_networkPacketReceivedCallback(&tmp,
+                                                senderInfo->defragData,
+                                                senderInfo->recvDataLen);
+#ifdef __WITH_DTLS__
+            }
+#endif
+
+            oc_mutex_unlock(g_bleAdapterReqRespCbMutex);
             u_arraylist_remove(bleData->senderInfo, senderIndex);
             senderInfo->remoteEndpoint = NULL;
             senderInfo->defragData = NULL;
             OICFree(senderInfo);
         }
     }
-    ca_mutex_unlock(g_bleReceiveDataMutex);
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
+    oc_mutex_unlock(bleReceiveDataMutex);
+}
+
+
+static void CALEServerDataReceiverHandler(void *threadData)
+{
+    CALEDataReceiverHandler(threadData, ADAPTER_SERVER);
+}
+
+static void CALEClientDataReceiverHandler(void *threadData)
+{
+    CALEDataReceiverHandler(threadData, ADAPTER_CLIENT);
 }
 
 static void CALEServerSendDataThread(void *threadData)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN - CALEServerSendDataThread");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN %s", __func__);
 
     CALEData_t * const bleData = (CALEData_t *) threadData;
     if (!bleData)
     {
-        OIC_LOG(DEBUG, CALEADAPTER_TAG, "Invalid bledata!");
+        OIC_LOG(ERROR, CALEADAPTER_TAG, "Invalid bledata!");
+        return;
+    }
+
+    if (!bleData->remoteEndpoint)
+    {
+        OIC_LOG(ERROR, CALEADAPTER_TAG, "Invalid endpoint of bledata!");
         return;
     }
 
+#if defined(__TIZEN__) || defined(__ANDROID__)
+    // get MTU size
+    g_mtuSize = CALEServerGetMtuSize(bleData->remoteEndpoint->addr);
+#endif
+    OIC_LOG_V(INFO, CALEADAPTER_TAG, "MTU size [%d]", g_mtuSize);
+
     uint32_t midPacketCount = 0;
     size_t remainingLen = 0;
     size_t totalLength = 0;
@@ -1038,7 +1236,8 @@ static void CALEServerSendDataThread(void *threadData)
     CAResult_t result = CAGenerateVariableForFragmentation(bleData->dataLen,
                                                            &midPacketCount,
                                                            &remainingLen,
-                                                           &totalLength);
+                                                           &totalLength,
+                                                           g_mtuSize);
 
     if (CA_STATUS_OK != result)
     {
@@ -1049,12 +1248,12 @@ static void CALEServerSendDataThread(void *threadData)
     }
 
     OIC_LOG_V(DEBUG, CALEADAPTER_TAG,
-              "Packet info: data size[%d] midPacketCount[%d] remainingLen[%d] totalLength[%d]",
+              "Packet info: data size[%d] midPacketCount[%u] remainingLen[%zu] totalLength[%zu]",
               bleData->dataLen, midPacketCount, remainingLen, totalLength);
 
     OIC_LOG_V(DEBUG,
               CALEADAPTER_TAG,
-              "Server total Data length with header is [%u]",
+              "Server total Data length with header is [%zu]",
               totalLength);
 
     uint8_t dataSegment[CA_SUPPORTED_BLE_MTU_SIZE] = {0};
@@ -1062,9 +1261,10 @@ static void CALEServerSendDataThread(void *threadData)
 
     if (NULL != bleData->remoteEndpoint) //Unicast Data
     {
-        secureFlag = bleData->remoteEndpoint->flags == CA_SECURE ?
+        secureFlag = (bleData->remoteEndpoint->flags & CA_SECURE) ?
             CA_BLE_PACKET_SECURE : CA_BLE_PACKET_NON_SECURE;
 
+        OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "This Packet is secure? %d", secureFlag);
         result = CAGenerateHeader(dataHeader,
                                   CA_BLE_PACKET_START,
                                   g_localBLESourcePort,
@@ -1079,6 +1279,7 @@ static void CALEServerSendDataThread(void *threadData)
                                   secureFlag,
                                   CA_BLE_MULTICAST_PORT);
     }
+    OIC_LOG_V(INFO, CALEADAPTER_TAG, "header info: secureFlag[%X]", secureFlag);
 
     if (CA_STATUS_OK != result)
     {
@@ -1103,15 +1304,15 @@ static void CALEServerSendDataThread(void *threadData)
 
     uint32_t length = 0;
     uint32_t dataLen = 0;
-    if (CA_SUPPORTED_BLE_MTU_SIZE > totalLength)
+    if (g_mtuSize > totalLength)
     {
         length = totalLength;
         dataLen = bleData->dataLen;
     }
     else
     {
-        length = CA_SUPPORTED_BLE_MTU_SIZE;
-        dataLen = CA_SUPPORTED_BLE_MTU_SIZE - CA_BLE_HEADER_SIZE - CA_BLE_LENGTH_HEADER_SIZE;
+        length = g_mtuSize;
+        dataLen = g_mtuSize - CA_BLE_HEADER_SIZE - CA_BLE_LENGTH_HEADER_SIZE;
     }
 
     result = CAMakeFirstDataSegment(dataSegment,
@@ -1153,7 +1354,7 @@ static void CALEServerSendDataThread(void *threadData)
 
         OIC_LOG_V(DEBUG,
                   CALEADAPTER_TAG,
-                  "Server Sent data length [%u]",
+                  "Server Sent Unicast First Data - data length [%zu]",
                   length);
 
         result = CAGenerateHeader(dataHeader,
@@ -1173,16 +1374,13 @@ static void CALEServerSendDataThread(void *threadData)
         for (index = 0; index < iter; index++)
         {
             // Send the remaining header.
-            OIC_LOG_V(DEBUG,
-                      CALEADAPTER_TAG,
-                      "Sending the chunk number [%u]",
-                      index);
-
             result = CAMakeRemainDataSegment(dataSegment,
+                                             g_mtuSize - CA_BLE_HEADER_SIZE,
                                              bleData->data,
-                                             CA_SUPPORTED_BLE_MTU_SIZE - CA_BLE_HEADER_SIZE,
+                                             bleData->dataLen,
                                              index,
-                                             dataHeader);
+                                             dataHeader,
+                                             g_mtuSize);
 
             if (CA_STATUS_OK != result)
             {
@@ -1196,7 +1394,7 @@ static void CALEServerSendDataThread(void *threadData)
                 CAUpdateCharacteristicsToGattClient(
                     bleData->remoteEndpoint->addr,
                     dataSegment,
-                    CA_SUPPORTED_BLE_MTU_SIZE);
+                    g_mtuSize);
 
             if (CA_STATUS_OK != result)
             {
@@ -1206,20 +1404,20 @@ static void CALEServerSendDataThread(void *threadData)
                 return;
             }
             OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "Server Sent data length [%d]",
-                                               CA_SUPPORTED_BLE_MTU_SIZE);
+                                               g_mtuSize);
         }
 
-        if (remainingLen && (totalLength > CA_SUPPORTED_BLE_MTU_SIZE))
+        if (remainingLen && (totalLength > g_mtuSize))
         {
             // send the last segment of the data (Ex: 22 bytes of 622
             // bytes of data when MTU is 200)
-            OIC_LOG(DEBUG, CALEADAPTER_TAG, "Sending the last chunk");
-
             result = CAMakeRemainDataSegment(dataSegment,
-                                             bleData->data,
                                              remainingLen,
+                                             bleData->data,
+                                             bleData->dataLen,
                                              index,
-                                             dataHeader);
+                                             dataHeader,
+                                             g_mtuSize);
 
             if (CA_STATUS_OK != result)
             {
@@ -1246,120 +1444,64 @@ static void CALEServerSendDataThread(void *threadData)
                                result);
                 return;
             }
-            OIC_LOG_V(DEBUG, CALEADAPTER_TAG,
-                      "Server Sent data length [%d]", remainingLen + CA_BLE_HEADER_SIZE);
+            OIC_LOG_V(DEBUG,
+                      CALEADAPTER_TAG,
+                      "Server Sent Unicast Last Data - data length [%zu]",
+                      remainingLen + CA_BLE_HEADER_SIZE);
         }
      }
     else
     {
         OIC_LOG(DEBUG, CALEADAPTER_TAG, "Server Sending Multicast data");
-        result = CAUpdateCharacteristicsToAllGattClients(dataSegment, length);
-        if (CA_STATUS_OK != result)
-        {
-            OIC_LOG_V(ERROR, CALEADAPTER_TAG, "Update characteristics failed, result [%d]",
-                      result);
-            CALEErrorHandler(NULL, bleData->data, bleData->dataLen, result);
-            return;
-        }
-        OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "Server Sent data length [%d]", length);
-
-        result = CAGenerateHeader(dataHeader,
-                                  CA_BLE_PACKET_NOT_START,
-                                  g_localBLESourcePort,
-                                  secureFlag,
-                                  CA_BLE_MULTICAST_PORT);
-
-        if (CA_STATUS_OK != result)
-        {
-            OIC_LOG_V(ERROR, CALEADAPTER_TAG,
-                      "CAGenerateHeader failed, result [%d]", result);
-            g_errorHandler(bleData->remoteEndpoint, bleData->data, bleData->dataLen, result);
-            return;
-        }
-
-        for (index = 0; index < iter; index++)
-        {
-            // Send the remaining header.
-            OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "Sending the chunk number [%d]", index);
-
-            result = CAMakeRemainDataSegment(dataSegment,
-                                             bleData->data,
-                                             CA_SUPPORTED_BLE_MTU_SIZE - CA_BLE_HEADER_SIZE,
-                                             index,
-                                             dataHeader);
-
-            if (CA_STATUS_OK != result)
-            {
-                OIC_LOG_V(ERROR, CALEADAPTER_TAG,
-                            "Making data segment failed, result [%d]", result);
-                g_errorHandler(bleData->remoteEndpoint, bleData->data, bleData->dataLen, result);
-                return;
-            }
-
-            result = CAUpdateCharacteristicsToAllGattClients(
-                         dataSegment,
-                         CA_SUPPORTED_BLE_MTU_SIZE);
-
-            if (CA_STATUS_OK != result)
-            {
-                OIC_LOG_V(ERROR, CALEADAPTER_TAG, "Update characteristics failed, result [%d]",
-                          result);
-                CALEErrorHandler(NULL, bleData->data, bleData->dataLen, result);
-                return;
-            }
-            OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "Server Sent data length [%u]",
-                      CA_SUPPORTED_BLE_MTU_SIZE);
-        }
-
-        if (remainingLen && (totalLength > CA_SUPPORTED_BLE_MTU_SIZE))
-        {
-            // send the last segment of the data
-            OIC_LOG(DEBUG, CALEADAPTER_TAG, "Sending the last chunk");
-
-            result = CAMakeRemainDataSegment(dataSegment,
-                                             bleData->data,
-                                             remainingLen,
-                                             index,
-                                             dataHeader);
-
-            if (CA_STATUS_OK != result)
-            {
-                OIC_LOG_V(ERROR, CALEADAPTER_TAG,
-                            "Making data segment failed, result [%d]", result);
-                g_errorHandler(bleData->remoteEndpoint, bleData->data, bleData->dataLen, result);
-                return;
-            }
-
-            result = CAUpdateCharacteristicsToAllGattClients(
-                         dataSegment,
-                         remainingLen + CA_BLE_HEADER_SIZE);
-
-            if (CA_STATUS_OK != result)
-            {
-                OIC_LOG_V(ERROR, CALEADAPTER_TAG, "Update characteristics failed, result [%d]",
-                          result);
-                CALEErrorHandler(NULL, bleData->data, bleData->dataLen, result);
-                return;
-            }
-            OIC_LOG_V(DEBUG, CALEADAPTER_TAG,
-                      "Server Sent data length [%d]", remainingLen + CA_BLE_HEADER_SIZE);
-        }
+        OIC_LOG(DEBUG, CALEADAPTER_TAG, "BLE Multicast is not supported");
     }
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT - CALEServerSendDataThread");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "OUT %s", __func__);
 }
 
 static void CALEClientSendDataThread(void *threadData)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN - CALEClientSendDataThread");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN %s", __func__);
 
     CALEData_t *bleData = (CALEData_t *) threadData;
     if (!bleData)
     {
-        OIC_LOG(DEBUG, CALEADAPTER_TAG, "Invalid bledata!");
+        OIC_LOG(ERROR, CALEADAPTER_TAG, "Invalid bledata!");
         return;
     }
 
+    if (!bleData->remoteEndpoint)
+    {
+        OIC_LOG(ERROR, CALEADAPTER_TAG, "Invalid endpoint of bledata!");
+        return;
+    }
+
+#if defined(__TIZEN__) || defined(__ANDROID__)
+    // get MTU size
+    if (false == CALEClientIsConnected(bleData->remoteEndpoint->addr))
+    {
+        // triggering to gatt connect and MTU negotiation
+        CAResult_t res = CALEClientSendNegotiationMessage(
+                bleData->remoteEndpoint->addr);
+
+        if (CA_STATUS_OK != res)
+        {
+            OIC_LOG_V(ERROR,
+                      CALEADAPTER_TAG,
+                      "CALEClientSendNegotiationMessage has failed, result [%d]",
+                      res);
+
+            g_errorHandler(bleData->remoteEndpoint,
+                           bleData->data,
+                           bleData->dataLen,
+                           res);
+            return;
+        }
+    }
+    g_mtuSize = CALEClientGetMtuSize(bleData->remoteEndpoint->addr);
+#endif
+    OIC_LOG_V(INFO, CALEADAPTER_TAG, "MTU size [%d]", g_mtuSize);
+
     uint32_t midPacketCount = 0;
     size_t remainingLen = 0;
     size_t totalLength = 0;
@@ -1368,7 +1510,8 @@ static void CALEClientSendDataThread(void *threadData)
     CAResult_t result = CAGenerateVariableForFragmentation(bleData->dataLen,
                                                            &midPacketCount,
                                                            &remainingLen,
-                                                           &totalLength);
+                                                           &totalLength,
+                                                           g_mtuSize);
 
     if (CA_STATUS_OK != result)
     {
@@ -1379,7 +1522,7 @@ static void CALEClientSendDataThread(void *threadData)
     }
 
     OIC_LOG_V(DEBUG, CALEADAPTER_TAG,
-              "Packet info: data size[%d] midPacketCount[%d] remainingLen[%d] totalLength[%d]",
+              "Packet info: data size[%d] midPacketCount[%u] remainingLen[%zu] totalLength[%zu]",
               bleData->dataLen, midPacketCount, remainingLen, totalLength);
 
     uint8_t dataSegment[CA_SUPPORTED_BLE_MTU_SIZE] = {0};
@@ -1387,9 +1530,10 @@ static void CALEClientSendDataThread(void *threadData)
 
     if (NULL != bleData->remoteEndpoint) //Unicast Data
     {
-        secureFlag = bleData->remoteEndpoint->flags == CA_SECURE ?
+        secureFlag = (bleData->remoteEndpoint->flags & CA_SECURE) ?
             CA_BLE_PACKET_SECURE : CA_BLE_PACKET_NON_SECURE;
 
+        OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "This Packet is secure? %d", secureFlag);
         result = CAGenerateHeader(dataHeader,
                                   CA_BLE_PACKET_START,
                                   g_localBLESourcePort,
@@ -1405,6 +1549,8 @@ static void CALEClientSendDataThread(void *threadData)
                                   CA_BLE_MULTICAST_PORT);
     }
 
+    OIC_LOG_V(INFO, CALEADAPTER_TAG, "header info: secureFlag[%X]", secureFlag);
+
     if (CA_STATUS_OK != result)
     {
         OIC_LOG_V(ERROR, CALEADAPTER_TAG,
@@ -1428,15 +1574,15 @@ static void CALEClientSendDataThread(void *threadData)
 
     uint32_t length = 0;
     uint32_t dataLen = 0;
-    if (CA_SUPPORTED_BLE_MTU_SIZE > totalLength)
+    if (g_mtuSize > totalLength)
     {
         length = totalLength;
         dataLen = bleData->dataLen;
     }
     else
     {
-        length = CA_SUPPORTED_BLE_MTU_SIZE;
-        dataLen = CA_SUPPORTED_BLE_MTU_SIZE - CA_BLE_HEADER_SIZE - CA_BLE_LENGTH_HEADER_SIZE;
+        length = g_mtuSize;
+        dataLen = g_mtuSize - CA_BLE_HEADER_SIZE - CA_BLE_LENGTH_HEADER_SIZE;
     }
 
     result = CAMakeFirstDataSegment(dataSegment,
@@ -1463,133 +1609,30 @@ static void CALEClientSendDataThread(void *threadData)
                 dataSegment,
                 length,
                 LE_UNICAST,
-                0);
-
-        if (CA_STATUS_OK != result)
-        {
-            OIC_LOG_V(ERROR,
-                      CALEADAPTER_TAG,
-                      "Update characteristics failed, result [%d]",
-                      result);
-            g_errorHandler(bleData->remoteEndpoint,
-                           bleData->data,
-                           bleData->dataLen,
-                           result);
-            return;
-        }
-
-        OIC_LOG_V(DEBUG,
-                  CALEADAPTER_TAG,
-                  "Client Sent Data length  is [%u]",
-                  length);
-
-        result = CAGenerateHeader(dataHeader,
-                                  CA_BLE_PACKET_NOT_START,
-                                  g_localBLESourcePort,
-                                  secureFlag,
-                                  bleData->remoteEndpoint->port);
-
-        if (CA_STATUS_OK != result)
-        {
-            OIC_LOG_V(ERROR, CALEADAPTER_TAG,
-                      "CAGenerateHeader failed, result [%d]", result);
-            g_errorHandler(bleData->remoteEndpoint, bleData->data, bleData->dataLen, result);
-            return;
-        }
-
-        for (index = 0; index < iter; index++)
-        {
-            result = CAMakeRemainDataSegment(dataSegment,
-                                             bleData->data,
-                                             CA_SUPPORTED_BLE_MTU_SIZE - CA_BLE_HEADER_SIZE,
-                                             index,
-                                             dataHeader);
-
-            if (CA_STATUS_OK != result)
-            {
-                OIC_LOG_V(ERROR, CALEADAPTER_TAG,
-                            "Making data segment failed, result [%d]", result);
-                g_errorHandler(bleData->remoteEndpoint, bleData->data, bleData->dataLen, result);
-                return;
-            }
-
-            // Send the remaining header.
-            result = CAUpdateCharacteristicsToGattServer(
-                     bleData->remoteEndpoint->addr,
-                     dataSegment,
-                     CA_SUPPORTED_BLE_MTU_SIZE,
-                     LE_UNICAST, 0);
-
-            if (CA_STATUS_OK != result)
-            {
-                OIC_LOG_V(ERROR,
-                          CALEADAPTER_TAG,
-                          "Update characteristics failed, result [%d]",
-                          result);
-                g_errorHandler(bleData->remoteEndpoint, bleData->data, bleData->dataLen, result);
-                return;
-            }
-            OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "Client Sent Data length  is [%d]",
-                                               CA_SUPPORTED_BLE_MTU_SIZE);
-        }
-
-        if (remainingLen && (totalLength > CA_SUPPORTED_BLE_MTU_SIZE))
-        {
-            // send the last segment of the data (Ex: 22 bytes of 622
-            // bytes of data when MTU is 200)
-            OIC_LOG(DEBUG, CALEADAPTER_TAG, "Sending the last chunk");
-
-            result = CAMakeRemainDataSegment(dataSegment,
-                                             bleData->data,
-                                             remainingLen,
-                                             index,
-                                             dataHeader);
-
-            if (CA_STATUS_OK != result)
-            {
-                OIC_LOG_V(ERROR, CALEADAPTER_TAG,
-                            "Making data segment failed, result [%d]", result);
-                g_errorHandler(bleData->remoteEndpoint, bleData->data, bleData->dataLen, result);
-                return;
-            }
-
-            result = CAUpdateCharacteristicsToGattServer(
-                     bleData->remoteEndpoint->addr,
-                     dataSegment,
-                     remainingLen + CA_BLE_HEADER_SIZE,
-                     LE_UNICAST, 0);
-
-            if (CA_STATUS_OK != result)
-            {
-                OIC_LOG_V(ERROR, CALEADAPTER_TAG, "Update characteristics failed, result [%d]",
-                                                   result);
-                g_errorHandler(bleData->remoteEndpoint, bleData->data, bleData->dataLen, result);
-                return;
-            }
-            OIC_LOG_V(DEBUG, CALEADAPTER_TAG,
-                      "Client Sent Data length  is [%d]", remainingLen + CA_BLE_HEADER_SIZE);
-        }
-    }
-    else
-    {
-        //Sending Mulitcast Data
-        // Send the first segment with the header.
-        OIC_LOG(DEBUG, CALEADAPTER_TAG, "Sending Multicast Data");
-        result = CAUpdateCharacteristicsToAllGattServers(dataSegment, length);
+                0);
+
         if (CA_STATUS_OK != result)
         {
-            OIC_LOG_V(ERROR, CALEADAPTER_TAG,
-                      "Update characteristics (all) failed, result [%d]", result);
-            CALEErrorHandler(NULL, bleData->data, bleData->dataLen, result);
-            return ;
+            OIC_LOG_V(ERROR,
+                      CALEADAPTER_TAG,
+                      "Update characteristics failed, result [%d]",
+                      result);
+            g_errorHandler(bleData->remoteEndpoint,
+                           bleData->data,
+                           bleData->dataLen,
+                           result);
+            return;
         }
-        OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "Client Sent Data length  is [%d]", length);
+        OIC_LOG_V(DEBUG,
+                  CALEADAPTER_TAG,
+                  "Client Sent Unicast First Data - data length [%zu]",
+                  length);
 
         result = CAGenerateHeader(dataHeader,
                                   CA_BLE_PACKET_NOT_START,
                                   g_localBLESourcePort,
                                   secureFlag,
-                                  0);
+                                  bleData->remoteEndpoint->port);
 
         if (CA_STATUS_OK != result)
         {
@@ -1599,14 +1642,15 @@ static void CALEClientSendDataThread(void *threadData)
             return;
         }
 
-        // Send the remaining header.
         for (index = 0; index < iter; index++)
         {
             result = CAMakeRemainDataSegment(dataSegment,
+                                             g_mtuSize - CA_BLE_HEADER_SIZE,
                                              bleData->data,
-                                             CA_SUPPORTED_BLE_MTU_SIZE - CA_BLE_HEADER_SIZE,
+                                             bleData->dataLen,
                                              index,
-                                             dataHeader);
+                                             dataHeader,
+                                             g_mtuSize);
 
             if (CA_STATUS_OK != result)
             {
@@ -1616,32 +1660,40 @@ static void CALEClientSendDataThread(void *threadData)
                 return;
             }
 
-            result = CAUpdateCharacteristicsToAllGattServers(
-                         dataSegment,
-                         CA_SUPPORTED_BLE_MTU_SIZE);
+            // Send the remaining header.
+            result = CAUpdateCharacteristicsToGattServer(
+                     bleData->remoteEndpoint->addr,
+                     dataSegment,
+                     g_mtuSize,
+                     LE_UNICAST, 0);
 
             if (CA_STATUS_OK != result)
             {
-                OIC_LOG_V(ERROR, CALEADAPTER_TAG, "Update characteristics failed, result [%d]",
+                OIC_LOG_V(ERROR,
+                          CALEADAPTER_TAG,
+                          "Update characteristics failed, result [%d]",
                           result);
-                CALEErrorHandler(NULL, bleData->data, bleData->dataLen, result);
+                g_errorHandler(bleData->remoteEndpoint, bleData->data, bleData->dataLen, result);
                 return;
             }
-            OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "Client Sent Data length  is [%d]",
-                      CA_SUPPORTED_BLE_MTU_SIZE);
+            OIC_LOG_V(DEBUG,
+                      CALEADAPTER_TAG,
+                      "Client Sent Unicast %d Data - data(mtu) length [%zu]",
+                      index + 1,
+                      g_mtuSize);
         }
 
-        if (remainingLen && (totalLength > CA_SUPPORTED_BLE_MTU_SIZE))
+        if (remainingLen && (totalLength > g_mtuSize))
         {
             // send the last segment of the data (Ex: 22 bytes of 622
             // bytes of data when MTU is 200)
-            OIC_LOG(DEBUG, CALEADAPTER_TAG, "Sending the last chunk");
-
             result = CAMakeRemainDataSegment(dataSegment,
-                                             bleData->data,
                                              remainingLen,
+                                             bleData->data,
+                                             bleData->dataLen,
                                              index,
-                                             dataHeader);
+                                             dataHeader,
+                                             g_mtuSize);
 
             if (CA_STATUS_OK != result)
             {
@@ -1651,24 +1703,33 @@ static void CALEClientSendDataThread(void *threadData)
                 return;
             }
 
-            result =
-                CAUpdateCharacteristicsToAllGattServers(
-                    dataSegment,
-                    remainingLen + CA_BLE_HEADER_SIZE);
+            result = CAUpdateCharacteristicsToGattServer(
+                     bleData->remoteEndpoint->addr,
+                     dataSegment,
+                     remainingLen + CA_BLE_HEADER_SIZE,
+                     LE_UNICAST, 0);
 
             if (CA_STATUS_OK != result)
             {
-                OIC_LOG_V(ERROR, CALEADAPTER_TAG,
-                          "Update characteristics (all) failed, result [%d]", result);
-                CALEErrorHandler(NULL, bleData->data, bleData->dataLen, result);
+                OIC_LOG_V(ERROR, CALEADAPTER_TAG, "Update characteristics failed, result [%d]",
+                                                   result);
+                g_errorHandler(bleData->remoteEndpoint, bleData->data, bleData->dataLen, result);
                 return;
             }
-            OIC_LOG_V(DEBUG, CALEADAPTER_TAG,
-                      "Client Sent Data length  is [%d]", remainingLen + CA_BLE_HEADER_SIZE);
+            OIC_LOG_V(DEBUG,
+                      CALEADAPTER_TAG,
+                      "Client Sent Unicast Last Data - data length [%zu]",
+                      remainingLen + CA_BLE_HEADER_SIZE);
         }
     }
+    else
+    {
+        //Sending Mulitcast Data
+        OIC_LOG(DEBUG, CALEADAPTER_TAG, "Client Sending Multicast Data");
+        OIC_LOG(DEBUG, CALEADAPTER_TAG, "BLE Multicast is not supported");
+    }
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT - CABLEClientSendDataThread");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "OUT %s", __func__);
 }
 
 static CALEData_t *CACreateLEData(const CAEndpoint_t *remoteEndpoint,
@@ -1717,7 +1778,7 @@ static void CALEDataDestroyer(void *data, uint32_t size)
 {
     if ((size_t)size < sizeof(CALEData_t *))
     {
-        OIC_LOG_V(ERROR, CALEADAPTER_TAG,
+        OIC_LOG_V(DEBUG, CALEADAPTER_TAG,
                   "Destroy data too small %p %d", data, size);
     }
     CALEData_t *ledata = (CALEData_t *) data;
@@ -1730,7 +1791,7 @@ static void CALEDataDestroyer(void *data, uint32_t size)
 static void CALEDataReceiverHandlerSingleThread(const uint8_t *data,
                                                 uint32_t dataLen)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN %s", __func__);
 
     VERIFY_NON_NULL(data, CALEADAPTER_TAG, "Param data is NULL");
 
@@ -1840,15 +1901,16 @@ static void CALEDataReceiverHandlerSingleThread(const uint8_t *data,
                data + CA_BLE_HEADER_SIZE,
                dataOnlyLen);
         g_singleThreadReceiveData->recvDataLen += dataOnlyLen;
-        OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "totalDatalength  [%d] received Datalen [%d]",
+        OIC_LOG_V(INFO, CALEADAPTER_TAG, "totalDatalength  [%d] received Datalen [%d]",
                 g_singleThreadReceiveData->totalDataLen, g_singleThreadReceiveData->recvDataLen);
     }
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "OUT %s", __func__);
 }
 
 static CAResult_t CALEServerSendDataSingleThread(const uint8_t *data,
                                                  uint32_t dataLen)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "%s", __func__););
 
     VERIFY_NON_NULL(data, CALEADAPTER_TAG, "Param data is NULL");
 
@@ -1860,7 +1922,8 @@ static CAResult_t CALEServerSendDataSingleThread(const uint8_t *data,
     CAResult_t result = CAGenerateVariableForFragmentation(dataLen,
                                                            &midPacketCount,
                                                            &remainingLen,
-                                                           &totalLength);
+                                                           &totalLength,
+                                                           g_mtuSize);
 
     if (CA_STATUS_OK != result)
     {
@@ -1908,15 +1971,15 @@ static CAResult_t CALEServerSendDataSingleThread(const uint8_t *data,
 
     uint32_t length = 0;
     uint32_t dataOnlyLen = 0;
-    if (CA_SUPPORTED_BLE_MTU_SIZE > totalLength)
+    if (g_mtuSize > totalLength)
     {
         length = totalLength;
         dataOnlyLen = dataLen;
     }
     else
     {
-        length = CA_SUPPORTED_BLE_MTU_SIZE;
-        dataOnlyLen = CA_SUPPORTED_BLE_MTU_SIZE - CA_BLE_HEADER_SIZE - CA_BLE_LENGTH_HEADER_SIZE;
+        length = g_mtuSize;
+        dataOnlyLen = g_mtuSize - CA_BLE_HEADER_SIZE - CA_BLE_LENGTH_HEADER_SIZE;
     }
 
     result = CAMakeFirstDataSegment(dataSegment,
@@ -1960,10 +2023,12 @@ static CAResult_t CALEServerSendDataSingleThread(const uint8_t *data,
     for (uint32_t iter = 0; iter < dataLimit; iter++)
     {
         result = CAMakeRemainDataSegment(dataSegment,
+                                         g_mtuSize - CA_BLE_HEADER_SIZE,
                                          data,
-                                         CA_SUPPORTED_BLE_MTU_SIZE - CA_BLE_HEADER_SIZE,
+                                         dataLen,
                                          iter,
-                                         dataHeader);
+                                         dataHeader,
+                                         g_mtuSize);
 
         if (CA_STATUS_OK != result)
         {
@@ -1974,7 +2039,7 @@ static CAResult_t CALEServerSendDataSingleThread(const uint8_t *data,
 
         result = CAUpdateCharacteristicsToAllGattClients(
                      dataSegment,
-                     CA_SUPPORTED_BLE_MTU_SIZE);
+                     g_mtuSize);
 
         if (CA_STATUS_OK != result)
         {
@@ -1985,16 +2050,18 @@ static CAResult_t CALEServerSendDataSingleThread(const uint8_t *data,
         CALEDoEvents();
     }
 
-    if (remainingLen && (totalLength > CA_SUPPORTED_BLE_MTU_SIZE))
+    if (remainingLen && (totalLength > g_mtuSize))
     {
         // send the last segment of the data
         OIC_LOG(DEBUG, CALEADAPTER_TAG, "Sending the last chunk");
 
         result = CAMakeRemainDataSegment(dataSegment,
-                                         data,
                                          remainingLen,
+                                         data,
+                                         dataLen,
                                          dataLimit,
-                                         dataHeader);
+                                         dataHeader,
+                                         g_mtuSize);
 
         if (CA_STATUS_OK != result)
         {
@@ -2021,24 +2088,24 @@ static CAResult_t CALEServerSendDataSingleThread(const uint8_t *data,
 
 static CAResult_t CAInitLEAdapterMutex()
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN - CAInitLEAdapterMutex");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "%s", __func__);
 
     if (NULL == g_bleIsServerMutex)
     {
-        g_bleIsServerMutex = ca_mutex_new();
+        g_bleIsServerMutex = oc_mutex_new();
         if (NULL == g_bleIsServerMutex)
         {
-            OIC_LOG(ERROR, CALEADAPTER_TAG, "ca_mutex_new failed");
+            OIC_LOG(ERROR, CALEADAPTER_TAG, "oc_mutex_new failed");
             return CA_STATUS_FAILED;
         }
     }
 
     if (NULL == g_bleNetworkCbMutex)
     {
-        g_bleNetworkCbMutex = ca_mutex_new();
+        g_bleNetworkCbMutex = oc_mutex_new();
         if (NULL == g_bleNetworkCbMutex)
         {
-            OIC_LOG(ERROR, CALEADAPTER_TAG, "ca_mutex_new failed");
+            OIC_LOG(ERROR, CALEADAPTER_TAG, "oc_mutex_new failed");
             CATerminateLEAdapterMutex();
             return CA_STATUS_FAILED;
         }
@@ -2046,10 +2113,10 @@ static CAResult_t CAInitLEAdapterMutex()
 
     if (NULL == g_bleLocalAddressMutex)
     {
-        g_bleLocalAddressMutex = ca_mutex_new();
+        g_bleLocalAddressMutex = oc_mutex_new();
         if (NULL == g_bleLocalAddressMutex)
         {
-            OIC_LOG(ERROR, CALEADAPTER_TAG, "ca_mutex_new failed");
+            OIC_LOG(ERROR, CALEADAPTER_TAG, "oc_mutex_new failed");
             CATerminateLEAdapterMutex();
             return CA_STATUS_FAILED;
         }
@@ -2057,10 +2124,10 @@ static CAResult_t CAInitLEAdapterMutex()
 
     if (NULL == g_bleAdapterThreadPoolMutex)
     {
-        g_bleAdapterThreadPoolMutex = ca_mutex_new();
+        g_bleAdapterThreadPoolMutex = oc_mutex_new();
         if (NULL == g_bleAdapterThreadPoolMutex)
         {
-            OIC_LOG(ERROR, CALEADAPTER_TAG, "ca_mutex_new failed");
+            OIC_LOG(ERROR, CALEADAPTER_TAG, "oc_mutex_new failed");
             CATerminateLEAdapterMutex();
             return CA_STATUS_FAILED;
         }
@@ -2068,10 +2135,10 @@ static CAResult_t CAInitLEAdapterMutex()
 
     if (NULL == g_bleClientSendDataMutex)
     {
-        g_bleClientSendDataMutex = ca_mutex_new();
+        g_bleClientSendDataMutex = oc_mutex_new();
         if (NULL == g_bleClientSendDataMutex)
         {
-            OIC_LOG(ERROR, CALEADAPTER_TAG, "ca_mutex_new failed");
+            OIC_LOG(ERROR, CALEADAPTER_TAG, "oc_mutex_new failed");
             CATerminateLEAdapterMutex();
             return CA_STATUS_FAILED;
         }
@@ -2079,10 +2146,10 @@ static CAResult_t CAInitLEAdapterMutex()
 
     if (NULL == g_bleServerSendDataMutex)
     {
-        g_bleServerSendDataMutex = ca_mutex_new();
+        g_bleServerSendDataMutex = oc_mutex_new();
         if (NULL == g_bleServerSendDataMutex)
         {
-            OIC_LOG(ERROR, CALEADAPTER_TAG, "ca_mutex_new failed");
+            OIC_LOG(ERROR, CALEADAPTER_TAG, "oc_mutex_new failed");
             CATerminateLEAdapterMutex();
             return CA_STATUS_FAILED;
         }
@@ -2090,58 +2157,68 @@ static CAResult_t CAInitLEAdapterMutex()
 
     if (NULL == g_bleAdapterReqRespCbMutex)
     {
-        g_bleAdapterReqRespCbMutex = ca_mutex_new();
+        g_bleAdapterReqRespCbMutex = oc_mutex_new();
         if (NULL == g_bleAdapterReqRespCbMutex)
         {
-            OIC_LOG(ERROR, CALEADAPTER_TAG, "ca_mutex_new failed");
+            OIC_LOG(ERROR, CALEADAPTER_TAG, "oc_mutex_new failed");
             CATerminateLEAdapterMutex();
             return CA_STATUS_FAILED;
         }
     }
 
-    if (NULL == g_bleReceiveDataMutex)
+    if (NULL == g_bleServerReceiveDataMutex)
+    {
+        g_bleServerReceiveDataMutex = oc_mutex_new();
+        if (NULL == g_bleServerReceiveDataMutex)
+        {
+            OIC_LOG(ERROR, CALEADAPTER_TAG, "oc_mutex_new failed");
+            return CA_STATUS_FAILED;
+        }
+    }
+
+    if (NULL == g_bleClientReceiveDataMutex)
     {
-        g_bleReceiveDataMutex = ca_mutex_new();
-        if (NULL == g_bleReceiveDataMutex)
+        g_bleClientReceiveDataMutex = oc_mutex_new();
+        if (NULL == g_bleClientReceiveDataMutex)
         {
-            OIC_LOG(ERROR, CALEADAPTER_TAG, "ca_mutex_new failed");
+            OIC_LOG(ERROR, CALEADAPTER_TAG, "oc_mutex_new failed");
             return CA_STATUS_FAILED;
         }
     }
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
     return CA_STATUS_OK;
 }
 
 static void CATerminateLEAdapterMutex()
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN - CATerminateLEAdapterMutex");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "%s", __func__);
 
-    ca_mutex_free(g_bleIsServerMutex);
+    oc_mutex_free(g_bleIsServerMutex);
     g_bleIsServerMutex = NULL;
 
-    ca_mutex_free(g_bleNetworkCbMutex);
+    oc_mutex_free(g_bleNetworkCbMutex);
     g_bleNetworkCbMutex = NULL;
 
-    ca_mutex_free(g_bleLocalAddressMutex);
+    oc_mutex_free(g_bleLocalAddressMutex);
     g_bleLocalAddressMutex = NULL;
 
-    ca_mutex_free(g_bleAdapterThreadPoolMutex);
+    oc_mutex_free(g_bleAdapterThreadPoolMutex);
     g_bleAdapterThreadPoolMutex = NULL;
 
-    ca_mutex_free(g_bleClientSendDataMutex);
+    oc_mutex_free(g_bleClientSendDataMutex);
     g_bleClientSendDataMutex = NULL;
 
-    ca_mutex_free(g_bleServerSendDataMutex);
+    oc_mutex_free(g_bleServerSendDataMutex);
     g_bleServerSendDataMutex = NULL;
 
-    ca_mutex_free(g_bleAdapterReqRespCbMutex);
+    oc_mutex_free(g_bleAdapterReqRespCbMutex);
     g_bleAdapterReqRespCbMutex = NULL;
 
-    ca_mutex_free(g_bleReceiveDataMutex);
-    g_bleReceiveDataMutex = NULL;
+    oc_mutex_free(g_bleServerReceiveDataMutex);
+    g_bleServerReceiveDataMutex = NULL;
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
+    oc_mutex_free(g_bleClientReceiveDataMutex);
+    g_bleClientReceiveDataMutex = NULL;
 }
 
 /**
@@ -2345,7 +2422,14 @@ static CAResult_t CALEAdapterClientSendData(const CAEndpoint_t *remoteEndpoint,
 
 static CAResult_t CALEAdapterGattServerStart()
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "Before CAStartLEGattServer");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "%s", __func__);
+
+    if (caglobals.bleFlags & CA_LE_SERVER_DISABLE)
+    {
+        OIC_LOG_V(INFO, CALEADAPTER_TAG, "server flag of configure is disable [%d]",
+                  caglobals.bleFlags);
+        return CA_STATUS_OK;
+    }
 
     CAResult_t result = CAStartLEGattServer();
 
@@ -2356,9 +2440,9 @@ static CAResult_t CALEAdapterGattServerStart()
     */
     if (CA_STATUS_OK == result)
     {
-        ca_mutex_lock(g_bleServerSendDataMutex);
+        oc_mutex_lock(g_bleServerSendDataMutex);
         result = CAQueueingThreadStart(g_bleServerSendQueueHandle);
-        ca_mutex_unlock(g_bleServerSendDataMutex);
+        oc_mutex_unlock(g_bleServerSendDataMutex);
 
         if (CA_STATUS_OK != result)
         {
@@ -2375,18 +2459,32 @@ static CAResult_t CALEAdapterGattServerStart()
 
 static CAResult_t CALEAdapterGattServerStop()
 {
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "%s", __func__);
+
+    if (caglobals.bleFlags & CA_LE_SERVER_DISABLE)
+    {
+        OIC_LOG_V(INFO, CALEADAPTER_TAG, "server flag of configure is disable [%d]",
+                  caglobals.bleFlags);
+        return CA_STATUS_OK;
+    }
+
 #ifndef SINGLE_THREAD
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "CALEAdapterGattServerStop");
 
-    CAResult_t result = CAStopLEGattServer();
-    ca_mutex_lock(g_bleServerSendDataMutex);
-    if (CA_STATUS_OK == result)
+    oc_mutex_lock(g_bleServerSendDataMutex);
+    CAResult_t res = CAQueueingThreadStop(g_bleServerSendQueueHandle);
+    if (CA_STATUS_OK != res)
     {
-        result = CAQueueingThreadStop(g_bleServerSendQueueHandle);
+        OIC_LOG(ERROR, CALEADAPTER_TAG, "CAQueueingThreadStop has failed");
     }
-    ca_mutex_unlock(g_bleServerSendDataMutex);
+    oc_mutex_unlock(g_bleServerSendDataMutex);
 
-    return result;
+    res = CAStopLEGattServer();
+    if (CA_STATUS_OK != res)
+    {
+        OIC_LOG(ERROR, CALEADAPTER_TAG, "CAStopLEGattServer has failed");
+    }
+
+    return res;
 #else
     return CAStopLEGattServer();
 #endif
@@ -2394,7 +2492,7 @@ static CAResult_t CALEAdapterGattServerStop()
 
 static CAResult_t CALEAdapterGattClientStart()
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "Before CAStartLEGattClient");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "%s", __func__);
 
     CAResult_t result = CAStartLEGattClient();
 
@@ -2405,9 +2503,9 @@ static CAResult_t CALEAdapterGattClientStart()
     */
     if (CA_STATUS_OK == result)
     {
-        ca_mutex_lock(g_bleClientSendDataMutex);
+        oc_mutex_lock(g_bleClientSendDataMutex);
         result = CAQueueingThreadStart(g_bleClientSendQueueHandle);
-        ca_mutex_unlock(g_bleClientSendDataMutex);
+        oc_mutex_unlock(g_bleClientSendDataMutex);
 
         if (CA_STATUS_OK != result)
         {
@@ -2424,12 +2522,12 @@ static CAResult_t CALEAdapterGattClientStart()
 static CAResult_t CALEAdapterGattClientStop()
 {
 #ifndef SINGLE_THREAD
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "CALEAdapterGattClientStop");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "%s", __func__);
     CAStopLEGattClient();
 
-    ca_mutex_lock(g_bleClientSendDataMutex);
+    oc_mutex_lock(g_bleClientSendDataMutex);
     CAResult_t result = CAQueueingThreadStop(g_bleClientSendQueueHandle);
-    ca_mutex_unlock(g_bleClientSendDataMutex);
+    oc_mutex_unlock(g_bleClientSendDataMutex);
 
     return result;
 #else
@@ -2439,6 +2537,92 @@ static CAResult_t CALEAdapterGattClientStop()
 #endif
 }
 
+#ifdef __WITH_DTLS__
+static ssize_t CALESecureSendDataCB(CAEndpoint_t *endpoint, const void *data, size_t dataLen)
+{
+    VERIFY_NON_NULL(endpoint, CALEADAPTER_TAG, "endpoint is NULL");
+    VERIFY_NON_NULL(data, CALEADAPTER_TAG, "data is NULL");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN %s", __func__);
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "encrypted datalen = %d", dataLen);
+
+    CAResult_t result;
+    CADataType_t dataType = g_dataType;
+    ssize_t ret = 0;
+
+    if (ADAPTER_SERVER == g_adapterType ||
+            (ADAPTER_BOTH_CLIENT_SERVER == g_adapterType && CA_RESPONSE_DATA == dataType))
+    {
+        result = CALEAdapterServerSendData(endpoint, data, dataLen);
+        if (CA_STATUS_OK != result)
+        {
+            OIC_LOG(ERROR, CALEADAPTER_TAG, "Send unicast data for server failed" );
+
+             if (g_errorHandler)
+             {
+                 g_errorHandler(endpoint, data, dataLen, result);
+             }
+             return ret;
+        }
+        ret = (ssize_t)dataLen;
+    }
+    else if (ADAPTER_CLIENT == g_adapterType ||
+            (ADAPTER_BOTH_CLIENT_SERVER == g_adapterType && CA_REQUEST_DATA == dataType) ||
+            (ADAPTER_BOTH_CLIENT_SERVER == g_adapterType && CA_RESPONSE_FOR_RES == dataType))
+    {
+        result = CALEAdapterClientSendData(endpoint, data, dataLen);
+        if (CA_STATUS_OK != result)
+        {
+            OIC_LOG(ERROR, CALEADAPTER_TAG, "Send unicast data for client failed" );
+
+             if (g_errorHandler)
+             {
+                 g_errorHandler(endpoint, data, dataLen, result);
+             }
+             return ret;
+        }
+        ret = (ssize_t)dataLen;
+    }
+    else
+    {
+        OIC_LOG_V(ERROR, CALEADAPTER_TAG,
+                  "Can't Send Message adapterType = %d, dataType = %d", g_adapterType, dataType);
+        return ret;
+    }
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "OUT %s", __func__);
+    return ret;
+}
+
+void CALESecureReceiveDataCB(const CASecureEndpoint_t *sep, const void *data,
+                          size_t dataLen)
+{
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "%s", __func__);
+
+    VERIFY_NON_NULL_VOID(sep, CALEADAPTER_TAG, "sep is NULL");
+    VERIFY_NON_NULL_VOID(data, CALEADAPTER_TAG, "data is NULL");
+
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG,
+              "Secure Data Receive - decrypted datalen = %d", dataLen);
+
+    if (dataLen <= 0)
+    {
+        OIC_LOG(ERROR, CALEADAPTER_TAG, "incorrect dataLen, derecypt fail !");
+        return;
+    }
+
+    OIC_LOG_BUFFER(DEBUG, CALEADAPTER_TAG, data, dataLen);
+
+    if (g_networkPacketReceivedCallback)
+    {
+        OIC_LOG_V(DEBUG, CALEADAPTER_TAG,
+                  "[CALESecureReceiveDataCB] Secure flags = %d, %x",
+                  sep->endpoint.flags, sep->endpoint.flags);
+        OIC_LOG(DEBUG, CALEADAPTER_TAG,
+                  "[CALESecureReceiveDataCB] Received data up !");
+        g_networkPacketReceivedCallback(sep, data, dataLen);
+    }
+}
+#endif
+
 CAResult_t CAInitializeLE(CARegisterConnectivityCallback registerCallback,
                           CANetworkPacketReceivedCallback reqRespCallback,
                           CAAdapterChangeCallback netCallback,
@@ -2446,7 +2630,7 @@ CAResult_t CAInitializeLE(CARegisterConnectivityCallback registerCallback,
                           CAErrorHandleCallback errorCallback,
                           ca_thread_pool_t handle)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "%s", __func__);
 
     //Input validation
     VERIFY_NON_NULL(registerCallback, CALEADAPTER_TAG, "RegisterConnectivity callback is null");
@@ -2470,8 +2654,6 @@ CAResult_t CAInitializeLE(CARegisterConnectivityCallback registerCallback,
     }
     CAInitializeLEAdapter();
 
-    CASetLEClientThreadPoolHandle(handle);
-
     result = CAInitializeLEGattClient();
     if (CA_STATUS_OK != result)
     {
@@ -2479,6 +2661,8 @@ CAResult_t CAInitializeLE(CARegisterConnectivityCallback registerCallback,
         return CA_STATUS_FAILED;
     }
 
+    CASetLEClientThreadPoolHandle(handle);
+
     CASetLEReqRespClientCallback(CALEAdapterClientReceivedData);
     CASetLEServerThreadPoolHandle(handle);
     result = CAInitializeLEGattServer();
@@ -2498,6 +2682,18 @@ CAResult_t CAInitializeLE(CARegisterConnectivityCallback registerCallback,
 
     g_errorHandler = errorCallback;
 
+#ifdef __WITH_DTLS__
+     if (CA_STATUS_OK != CAinitSslAdapter())
+    {
+        OIC_LOG(ERROR, CALEADAPTER_TAG, "Failed to init SSL adapter");
+    }
+    else
+    {
+        CAsetSslAdapterCallbacks(CALESecureReceiveDataCB, CALESecureSendDataCB,
+                                 CA_ADAPTER_GATT_BTLE);
+    }
+#endif
+
     static const CAConnectivityHandler_t connHandler =
         {
             .startAdapter = CAStartLE,
@@ -2514,27 +2710,25 @@ CAResult_t CAInitializeLE(CARegisterConnectivityCallback registerCallback,
         };
 
     registerCallback(connHandler);
-
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
-
     return CA_STATUS_OK;
 }
 
 static CAResult_t CAStartLE()
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "CAStartLE");
-
     return CAStartLEAdapter();
 }
 
 static CAResult_t CAStopLE()
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN");
+#ifdef __WITH_DTLS__
+    CAdeinitSslAdapter();
+#endif
+
 #ifndef SINGLE_THREAD
     CAStopLEQueues();
 #endif
 
-    ca_mutex_lock(g_bleIsServerMutex);
+    oc_mutex_lock(g_bleIsServerMutex);
     switch (g_adapterType)
     {
         case ADAPTER_SERVER:
@@ -2550,16 +2744,13 @@ static CAResult_t CAStopLE()
         default:
             break;
     }
-    ca_mutex_unlock(g_bleIsServerMutex);
-
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
-
+    oc_mutex_unlock(g_bleIsServerMutex);
     return CAStopLEAdapter();
 }
 
 static void CATerminateLE()
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "%s", __func__);
 
     CASetLEReqRespServerCallback(NULL);
     CASetLEReqRespClientCallback(NULL);
@@ -2567,7 +2758,7 @@ static void CATerminateLE()
     CASetLEReqRespAdapterCallback(NULL);
     CATerminateLENetworkMonitor();
 
-    ca_mutex_lock(g_bleIsServerMutex);
+    oc_mutex_lock(g_bleIsServerMutex);
     switch (g_adapterType)
     {
         case ADAPTER_SERVER:
@@ -2584,19 +2775,30 @@ static void CATerminateLE()
             break;
     }
     g_adapterType = ADAPTER_EMPTY;
-    ca_mutex_unlock(g_bleIsServerMutex);
+    oc_mutex_unlock(g_bleIsServerMutex);
 
 #ifndef SINGLE_THREAD
     CATerminateLEQueues();
 #endif
-    CATerminateLEAdapterMutex();
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
+#ifdef __WITH_DTLS__
+    CAsetSslAdapterCallbacks(NULL, NULL, CA_ADAPTER_GATT_BTLE);
+#endif
+
+    CATerminateLEAdapterMutex();
 }
 
 static CAResult_t CAStartLEListeningServer()
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN - CAStartLEListeningServer");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN %s", __func__);
+
+    if (caglobals.bleFlags & CA_LE_SERVER_DISABLE)
+    {
+        OIC_LOG_V(INFO, CALEADAPTER_TAG, "server flag of configure is disable [%d]",
+                  caglobals.bleFlags);
+        return CA_STATUS_OK;
+    }
+
 #ifndef ROUTING_GATEWAY
     CAResult_t result = CA_STATUS_OK;
 #ifndef SINGLE_THREAD
@@ -2608,7 +2810,7 @@ static CAResult_t CAStartLEListeningServer()
     }
 #endif
 
-    ca_mutex_lock(g_bleIsServerMutex);
+    oc_mutex_lock(g_bleIsServerMutex);
     switch (g_adapterType)
     {
         case ADAPTER_CLIENT:
@@ -2619,7 +2821,7 @@ static CAResult_t CAStartLEListeningServer()
         default:
             g_adapterType = ADAPTER_SERVER;
     }
-    ca_mutex_unlock(g_bleIsServerMutex);
+    oc_mutex_unlock(g_bleIsServerMutex);
 
     result = CAGetLEAdapterState();
     if (CA_STATUS_OK != result)
@@ -2637,7 +2839,7 @@ static CAResult_t CAStartLEListeningServer()
         result = CALEAdapterGattServerStart();
     }
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "OUT %s", __func__);
     return result;
 #else
     // Routing Gateway only supports BLE client mode.
@@ -2654,7 +2856,7 @@ static CAResult_t CAStopLEListeningServer()
 
 static CAResult_t CAStartLEDiscoveryServer()
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN - CAStartLEDiscoveryServer");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN %s", __func__);
     CAResult_t result = CA_STATUS_OK;
 #ifndef SINGLE_THREAD
     result = CAInitLEClientQueues();
@@ -2665,7 +2867,7 @@ static CAResult_t CAStartLEDiscoveryServer()
     }
 #endif
 
-    ca_mutex_lock(g_bleIsServerMutex);
+    oc_mutex_lock(g_bleIsServerMutex);
     switch (g_adapterType)
     {
         case ADAPTER_SERVER:
@@ -2676,7 +2878,7 @@ static CAResult_t CAStartLEDiscoveryServer()
         default:
             g_adapterType = ADAPTER_CLIENT;
     }
-    ca_mutex_unlock(g_bleIsServerMutex);
+    oc_mutex_unlock(g_bleIsServerMutex);
 
     result = CAGetLEAdapterState();
     if (CA_STATUS_OK != result)
@@ -2694,17 +2896,15 @@ static CAResult_t CAStartLEDiscoveryServer()
         result = CALEAdapterGattClientStart();
     }
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "OUT %s", __func__);
     return result;
 }
 
 static CAResult_t CAReadLEData()
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN");
 #ifdef SINGLE_THREAD
     CACheckLEData();
 #endif
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
     return CA_STATUS_OK;
 }
 
@@ -2713,7 +2913,8 @@ static int32_t CASendLEUnicastData(const CAEndpoint_t *endpoint,
                                    uint32_t dataLen,
                                    CADataType_t dataType)
 {
-    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN - CASendLEUnicastData : type(%d)", dataType);
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN %s", __func__);
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "type(%d)", dataType);
 
     //Input validation
     VERIFY_NON_NULL_RET(endpoint, CALEADAPTER_TAG, "Remote endpoint is null", -1);
@@ -2727,14 +2928,39 @@ static int32_t CASendLEUnicastData(const CAEndpoint_t *endpoint,
         OIC_LOG(ERROR, CALEADAPTER_TAG, "g_adapterType is Empty");
     }
 
-    ca_mutex_lock(g_bleIsServerMutex);
+    oc_mutex_lock(g_bleIsServerMutex);
     if (ADAPTER_SERVER == g_adapterType ||
             (ADAPTER_BOTH_CLIENT_SERVER == g_adapterType && CA_RESPONSE_DATA == dataType))
     {
+#ifdef __WITH_DTLS__
+        if (endpoint && endpoint->flags & CA_SECURE)
+        {
+            OIC_LOG(DEBUG, CALEADAPTER_TAG,
+                    "Response Data or server - secured data send(caadapternetdtlsencrypt) call");
+            OIC_LOG_BUFFER(DEBUG, CALEADAPTER_TAG, data, dataLen);
+            g_dataType = dataType;
+            oc_mutex_unlock(g_bleIsServerMutex);
+
+            result = CAencryptSsl(endpoint, data, dataLen);
+            if (CA_STATUS_OK != result)
+            {
+                OIC_LOG(ERROR, CALEADAPTER_TAG, "caadapternetdtlsencrypt failed!");
+                return -1;
+            }
+            return dataLen;
+        }
+        else
+        {
+            OIC_LOG(DEBUG, CALEADAPTER_TAG,
+                    "server or both - none secured data send(CALEAdapterServerSendData) call");
+            result = CALEAdapterServerSendData(endpoint, data, dataLen);
+        }
+#else
         result = CALEAdapterServerSendData(endpoint, data, dataLen);
+#endif
         if (CA_STATUS_OK != result)
         {
-            ca_mutex_unlock(g_bleIsServerMutex);
+            oc_mutex_unlock(g_bleIsServerMutex);
             OIC_LOG(ERROR, CALEADAPTER_TAG, "Send unicast data for server failed");
             if (g_errorHandler)
             {
@@ -2744,27 +2970,51 @@ static int32_t CASendLEUnicastData(const CAEndpoint_t *endpoint,
             return -1;
         }
     }
-
-    if (ADAPTER_CLIENT == g_adapterType ||
+    else if (ADAPTER_CLIENT == g_adapterType ||
             (ADAPTER_BOTH_CLIENT_SERVER == g_adapterType && CA_REQUEST_DATA == dataType) ||
             (ADAPTER_BOTH_CLIENT_SERVER == g_adapterType && CA_RESPONSE_FOR_RES == dataType))
     {
+#ifdef __WITH_DTLS__
+        if (endpoint && endpoint->flags & CA_SECURE)
+        {
+            OIC_LOG(DEBUG, CALEADAPTER_TAG,
+                    "Request Data or client - secured data send(caadapternetdtlsencrypt) call");
+            OIC_LOG_BUFFER(DEBUG, CALEADAPTER_TAG, data, dataLen);
+            g_dataType = dataType;
+            oc_mutex_unlock(g_bleIsServerMutex);
+
+            result = CAencryptSsl(endpoint, data, dataLen);
+            if (CA_STATUS_OK != result)
+            {
+                OIC_LOG(ERROR, CALEADAPTER_TAG, "caadapternetdtlsencrypt failed!");
+                return -1;
+            }
+            return dataLen;
+        }
+        else
+        {
+            OIC_LOG(DEBUG, CALEADAPTER_TAG,
+                    "client or both - none secured data send(CALEAdapterClientSendData) call");
+            result = CALEAdapterClientSendData(endpoint, data, dataLen);
+        }
+#else
         result = CALEAdapterClientSendData(endpoint, data, dataLen);
+#endif
         if (CA_STATUS_OK != result)
         {
-            ca_mutex_unlock(g_bleIsServerMutex);
+            oc_mutex_unlock(g_bleIsServerMutex);
             OIC_LOG(ERROR, CALEADAPTER_TAG, "Send unicast data for client failed" );
 
-             if (g_errorHandler)
-             {
-                 g_errorHandler(endpoint, data, dataLen, result);
-             }
+            if (g_errorHandler)
+            {
+                g_errorHandler(endpoint, data, dataLen, result);
+            }
             return -1;
         }
     }
-    ca_mutex_unlock(g_bleIsServerMutex);
+    oc_mutex_unlock(g_bleIsServerMutex);
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "OUT %s", __func__);
     return dataLen;
 }
 
@@ -2773,7 +3023,7 @@ static int32_t CASendLEMulticastData(const CAEndpoint_t *endpoint,
                                      uint32_t dataLen,
                                      CADataType_t dataType)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN - CASendLEMulticastData");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN %s", __func__);
 
     //Input validation
     VERIFY_NON_NULL_RET(data, CALEADAPTER_TAG, "Data is null", -1);
@@ -2792,14 +3042,14 @@ static int32_t CASendLEMulticastData(const CAEndpoint_t *endpoint,
         OIC_LOG(ERROR, CALEADAPTER_TAG, "g_adapterType is Empty");
     }
 
-    ca_mutex_lock(g_bleIsServerMutex);
+    oc_mutex_lock(g_bleIsServerMutex);
     if (ADAPTER_SERVER == g_adapterType ||
             (ADAPTER_BOTH_CLIENT_SERVER == g_adapterType && CA_RESPONSE_DATA == dataType))
     {
         result = CALEAdapterServerSendData(NULL, data, dataLen);
         if (CA_STATUS_OK != result)
         {
-            ca_mutex_unlock(g_bleIsServerMutex);
+            oc_mutex_unlock(g_bleIsServerMutex);
 
             OIC_LOG(ERROR, CALEADAPTER_TAG, "Send multicast data for server failed" );
 
@@ -2818,7 +3068,7 @@ static int32_t CASendLEMulticastData(const CAEndpoint_t *endpoint,
         result = CALEAdapterClientSendData(NULL, data, dataLen);
         if (CA_STATUS_OK != result)
         {
-            ca_mutex_unlock(g_bleIsServerMutex);
+            oc_mutex_unlock(g_bleIsServerMutex);
 
             OIC_LOG(ERROR, CALEADAPTER_TAG, "Send Multicast data for client failed" );
 
@@ -2829,15 +3079,15 @@ static int32_t CASendLEMulticastData(const CAEndpoint_t *endpoint,
             return -1;
         }
     }
-    ca_mutex_unlock(g_bleIsServerMutex);
+    oc_mutex_unlock(g_bleIsServerMutex);
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT - CASendLEMulticastData");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "OUT %s", __func__);
     return dataLen;
 }
 
 static CAResult_t CAGetLEInterfaceInformation(CAEndpoint_t **info, uint32_t *size)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN %s", __func__);
 
     VERIFY_NON_NULL(info, CALEADAPTER_TAG, "CALocalConnectivity info is null");
 
@@ -2877,27 +3127,27 @@ static CAResult_t CAGetLEInterfaceInformation(CAEndpoint_t **info, uint32_t *siz
     }
 
     OICStrcpy((*info)->addr, sizeof((*info)->addr), local_address);
-    ca_mutex_lock(g_bleLocalAddressMutex);
+    oc_mutex_lock(g_bleLocalAddressMutex);
     OICStrcpy(g_localBLEAddress, sizeof(g_localBLEAddress), local_address);
-    ca_mutex_unlock(g_bleLocalAddressMutex);
+    oc_mutex_unlock(g_bleLocalAddressMutex);
 
     (*info)->adapter = CA_ADAPTER_GATT_BTLE;
     *size = 1;
     OICFree(local_address);
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "OUT %s", __func__);
     return CA_STATUS_OK;
 }
 
 static CAResult_t CALERegisterNetworkNotifications(CAAdapterChangeCallback netCallback,
                                                    CAConnectionChangeCallback connCallback)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN %s", __func__);
 
-    ca_mutex_lock(g_bleNetworkCbMutex);
+    oc_mutex_lock(g_bleNetworkCbMutex);
     g_networkCallback = netCallback;
     g_connectionCallback = connCallback;
-    ca_mutex_unlock(g_bleNetworkCbMutex);
+    oc_mutex_unlock(g_bleNetworkCbMutex);
     CAResult_t res = CA_STATUS_OK;
     if (netCallback)
     {
@@ -2924,21 +3174,32 @@ static CAResult_t CALERegisterNetworkNotifications(CAAdapterChangeCallback netCa
             OIC_LOG(ERROR, CALEADAPTER_TAG, "CASetLENWConnectionStateChangedCb failed!");
         }
     }
+    else
+    {
+        res = CAUnSetLENWConnectionStateChangedCb();
+        if (CA_STATUS_OK != res)
+        {
+            OIC_LOG(ERROR, CALEADAPTER_TAG, "CAUnSetLENWConnectionStateChangedCb failed!");
+        }
+    }
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "OUT %s", __func__);
     return res;
 }
 
 static void CALEConnectionStateChangedCb(CATransportAdapter_t adapter, const char* address,
                                          bool isConnected)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN - CALEConnectionStateChangedCb");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN %s", __func__);
 
     VERIFY_NON_NULL_VOID(address, CALEADAPTER_TAG, "address");
     (void)adapter;
 
+    CAEndpoint_t localEndpoint = { .adapter = CA_ADAPTER_GATT_BTLE };
+    OICStrcpy(localEndpoint.addr, sizeof(localEndpoint.addr), address);
+
 #ifdef __TIZEN__
-    ca_mutex_lock(g_bleIsServerMutex);
+    oc_mutex_lock(g_bleIsServerMutex);
     switch (g_adapterType)
     {
         case ADAPTER_SERVER:
@@ -2954,7 +3215,7 @@ static void CALEConnectionStateChangedCb(CATransportAdapter_t adapter, const cha
         default:
             break;
     }
-    ca_mutex_unlock(g_bleIsServerMutex);
+    oc_mutex_unlock(g_bleIsServerMutex);
 #endif
 
     if(!isConnected)
@@ -2985,28 +3246,27 @@ static void CALEConnectionStateChangedCb(CATransportAdapter_t adapter, const cha
                                     address);
         }
 #endif
-    }
 
-    CAEndpoint_t localEndpoint = { .adapter = CA_ADAPTER_GATT_BTLE };
-    OICStrcpy(localEndpoint.addr, sizeof(localEndpoint.addr), address);
+#ifdef __WITH_DTLS__
+        CAcloseSslConnection(&localEndpoint);
+#endif
+    }
 
-    ca_mutex_lock(g_bleNetworkCbMutex);
     if (g_connectionCallback)
     {
         g_connectionCallback(&localEndpoint, isConnected);
     }
-    ca_mutex_unlock(g_bleNetworkCbMutex);
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "OUT %s", __func__);
 }
 
 static void CALEDeviceStateChangedCb(CAAdapterState_t adapter_state)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN - CALEDeviceStateChangedCb");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN %s", __func__);
 
     if (CA_ADAPTER_ENABLED == adapter_state)
     {
-        ca_mutex_lock(g_bleIsServerMutex);
+        oc_mutex_lock(g_bleIsServerMutex);
         switch (g_adapterType)
         {
             case ADAPTER_SERVER:
@@ -3022,11 +3282,11 @@ static void CALEDeviceStateChangedCb(CAAdapterState_t adapter_state)
             default:
                 break;
         }
-        ca_mutex_unlock(g_bleIsServerMutex);
+        oc_mutex_unlock(g_bleIsServerMutex);
     }
     else
     {
-        ca_mutex_lock(g_bleIsServerMutex);
+        oc_mutex_lock(g_bleIsServerMutex);
         switch (g_adapterType)
         {
             case ADAPTER_SERVER:
@@ -3042,10 +3302,9 @@ static void CALEDeviceStateChangedCb(CAAdapterState_t adapter_state)
             default:
                 break;
         }
-        ca_mutex_unlock(g_bleIsServerMutex);
+        oc_mutex_unlock(g_bleIsServerMutex);
     }
 
-    ca_mutex_lock(g_bleNetworkCbMutex);
     if (NULL != g_networkCallback)
     {
         g_networkCallback(CA_ADAPTER_GATT_BTLE, adapter_state);
@@ -3054,17 +3313,14 @@ static void CALEDeviceStateChangedCb(CAAdapterState_t adapter_state)
     {
         OIC_LOG(ERROR, CALEADAPTER_TAG, "g_networkCallback is NULL");
     }
-    ca_mutex_unlock(g_bleNetworkCbMutex);
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "OUT %s", __func__);
 }
 
 static CAResult_t CALEAdapterClientSendData(const CAEndpoint_t *remoteEndpoint,
                                             const uint8_t *data,
                                             uint32_t dataLen)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN");
-
     VERIFY_NON_NULL(data, CALEADAPTER_TAG, "Param data is NULL");
 #ifndef SINGLE_THREAD
     VERIFY_NON_NULL_RET(g_bleClientSendQueueHandle, CALEADAPTER_TAG,
@@ -3074,10 +3330,6 @@ static CAResult_t CALEAdapterClientSendData(const CAEndpoint_t *remoteEndpoint,
                         "g_bleClientSendDataMutex is NULL",
                         CA_STATUS_FAILED);
 
-    VERIFY_NON_NULL_RET(g_bleClientSendQueueHandle, CALEADAPTER_TAG,
-                        "g_bleClientSendQueueHandle",
-                        CA_STATUS_FAILED);
-
     OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "Data Sending to LE layer [%u]", dataLen);
 
     CALEData_t *bleData = CACreateLEData(remoteEndpoint, data, dataLen, NULL);
@@ -3087,11 +3339,10 @@ static CAResult_t CALEAdapterClientSendData(const CAEndpoint_t *remoteEndpoint,
         return CA_MEMORY_ALLOC_FAILED;
     }
     // Add message to send queue
-    ca_mutex_lock(g_bleClientSendDataMutex);
+    oc_mutex_lock(g_bleClientSendDataMutex);
     CAQueueingThreadAddData(g_bleClientSendQueueHandle, bleData, sizeof(CALEData_t));
-    ca_mutex_unlock(g_bleClientSendDataMutex);
+    oc_mutex_unlock(g_bleClientSendDataMutex);
 #endif
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
     return CA_STATUS_OK;
 }
 
@@ -3099,7 +3350,7 @@ static CAResult_t CALEAdapterServerSendData(const CAEndpoint_t *remoteEndpoint,
                                             const uint8_t *data,
                                             uint32_t dataLen)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN %s", __func__);
 
     VERIFY_NON_NULL(data, CALEADAPTER_TAG, "Param data is NULL");
 
@@ -3139,13 +3390,13 @@ static CAResult_t CALEAdapterServerSendData(const CAEndpoint_t *remoteEndpoint,
     }
 
     // Add message to send queue
-    ca_mutex_lock(g_bleServerSendDataMutex);
+    oc_mutex_lock(g_bleServerSendDataMutex);
     CAQueueingThreadAddData(g_bleServerSendQueueHandle,
                             bleData,
                             sizeof(CALEData_t));
-    ca_mutex_unlock(g_bleServerSendDataMutex);
+    oc_mutex_unlock(g_bleServerSendDataMutex);
 #endif
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "OUT %s", __func__);
     return CA_STATUS_OK;
 }
 
@@ -3154,7 +3405,7 @@ static CAResult_t CALEAdapterServerReceivedData(const char *remoteAddress,
                                                 uint32_t dataLength,
                                                 uint32_t *sentLength)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN %s", __func__);
 
     //Input validation
     VERIFY_NON_NULL(data, CALEADAPTER_TAG, "Data is null");
@@ -3176,14 +3427,15 @@ static CAResult_t CALEAdapterServerReceivedData(const char *remoteAddress,
                                             g_singleThreadReceiveData->recvDataLen);
         }
         g_singleThreadReceiveData->remoteEndpoint = NULL;
+        OICFree(g_singleThreadReceiveData->defragData);
         g_singleThreadReceiveData->defragData = NULL;
         OICFree(g_singleThreadReceiveData);
         g_singleThreadReceiveData = NULL;
     }
 #else
-    VERIFY_NON_NULL_RET(g_bleReceiverQueue,
+    VERIFY_NON_NULL_RET(g_bleServerReceiverQueue,
                         CALEADAPTER_TAG,
-                        "g_bleReceiverQueue",
+                        "g_bleServerReceiverQueue",
                         CA_STATUS_FAILED);
 
     //Add message to data queue
@@ -3202,7 +3454,7 @@ static CAResult_t CALEAdapterServerReceivedData(const char *remoteAddress,
     // Create bleData to add to queue
     OIC_LOG_V(DEBUG,
               CALEADAPTER_TAG,
-              "Data received from LE layer [%d]",
+              "Data received from LE Server layer [%d]",
               dataLength);
 
     CALEData_t * const bleData =
@@ -3217,11 +3469,11 @@ static CAResult_t CALEAdapterServerReceivedData(const char *remoteAddress,
 
     CAFreeEndpoint(remoteEndpoint);
     // Add message to receiver queue
-    CAQueueingThreadAddData(g_bleReceiverQueue, bleData, sizeof(CALEData_t));
+    CAQueueingThreadAddData(g_bleServerReceiverQueue, bleData, sizeof(CALEData_t));
 
     *sentLength = dataLength;
 #endif
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "OUT %s", __func__);
     return CA_STATUS_OK;
 }
 
@@ -3230,14 +3482,12 @@ static CAResult_t CALEAdapterClientReceivedData(const char *remoteAddress,
                                                 uint32_t dataLength,
                                                 uint32_t *sentLength)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN");
-
     //Input validation
     VERIFY_NON_NULL(data, CALEADAPTER_TAG, "Data is null");
     VERIFY_NON_NULL(sentLength, CALEADAPTER_TAG, "Sent data length holder is null");
 #ifndef SINGLE_THREAD
-    VERIFY_NON_NULL_RET(g_bleReceiverQueue, CALEADAPTER_TAG,
-                        "g_bleReceiverQueue",
+    VERIFY_NON_NULL_RET(g_bleClientReceiverQueue, CALEADAPTER_TAG,
+                        "g_bleClientReceiverQueue",
                         CA_STATUS_FAILED);
 
     //Add message to data queue
@@ -3250,11 +3500,15 @@ static CAResult_t CALEAdapterClientReceivedData(const char *remoteAddress,
         return CA_STATUS_FAILED;
     }
 
-    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "Data received from LE layer [%u]", dataLength);
-
     // Create bleData to add to queue
-    CALEData_t *bleData = CACreateLEData(remoteEndpoint, data,
-                                         dataLength, g_bleClientSenderInfo);
+    OIC_LOG_V(DEBUG,
+              CALEADAPTER_TAG,
+              "Data received from LE Client layer [%zu]",
+              dataLength);
+
+    CALEData_t * const bleData =
+        CACreateLEData(remoteEndpoint, data, dataLength, g_bleClientSenderInfo);
+
     if (!bleData)
     {
         OIC_LOG(ERROR, CALEADAPTER_TAG, "Failed to create bledata!");
@@ -3264,36 +3518,27 @@ static CAResult_t CALEAdapterClientReceivedData(const char *remoteAddress,
 
     CAFreeEndpoint(remoteEndpoint);
     // Add message to receiver queue
-    CAQueueingThreadAddData(g_bleReceiverQueue, bleData, sizeof(CALEData_t));
+    CAQueueingThreadAddData(g_bleClientReceiverQueue, bleData, sizeof(CALEData_t));
 
     *sentLength = dataLength;
 #endif
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
     return CA_STATUS_OK;
 }
 
 static void CASetLEAdapterThreadPoolHandle(ca_thread_pool_t handle)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN");
-
-    ca_mutex_lock(g_bleAdapterThreadPoolMutex);
+    oc_mutex_lock(g_bleAdapterThreadPoolMutex);
     g_bleAdapterThreadPool = handle;
-    ca_mutex_unlock(g_bleAdapterThreadPoolMutex);
-
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
+    oc_mutex_unlock(g_bleAdapterThreadPoolMutex);
 }
 
 static void CASetLEReqRespAdapterCallback(CANetworkPacketReceivedCallback callback)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "IN");
-
-    ca_mutex_lock(g_bleAdapterReqRespCbMutex);
+    oc_mutex_lock(g_bleAdapterReqRespCbMutex);
 
     g_networkPacketReceivedCallback = callback;
 
-    ca_mutex_unlock(g_bleAdapterReqRespCbMutex);
-
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "OUT");
+    oc_mutex_unlock(g_bleAdapterReqRespCbMutex);
 }
 
 static void CALEErrorHandler(const char *remoteAddress,
@@ -3301,7 +3546,7 @@ static void CALEErrorHandler(const char *remoteAddress,
                              uint32_t dataLen,
                              CAResult_t result)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "CALEErrorHandler IN");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN %s", __func__);
 
     VERIFY_NON_NULL_VOID(data, CALEADAPTER_TAG, "Data is null");
 
@@ -3315,19 +3560,19 @@ static void CALEErrorHandler(const char *remoteAddress,
 
     CAFreeEndpoint(rep);
 
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "CALEErrorHandler OUT");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "OUT %s", __func__);
 }
 
 #ifndef SINGLE_THREAD
-static void CALERemoveSendQueueData(CAQueueingThread_t *queueHandle, ca_mutex mutex,
+static void CALERemoveSendQueueData(CAQueueingThread_t *queueHandle, oc_mutex mutex,
                                     const char* address)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "CALERemoveSendQueueData");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "%s", __func__);
 
     VERIFY_NON_NULL_VOID(queueHandle, CALEADAPTER_TAG, "queueHandle");
     VERIFY_NON_NULL_VOID(address, CALEADAPTER_TAG, "address");
 
-    ca_mutex_lock(mutex);
+    oc_mutex_lock(mutex);
     while (u_queue_get_size(queueHandle->dataQueue) > 0)
     {
         OIC_LOG(DEBUG, CALEADAPTER_TAG, "get data from queue");
@@ -3337,7 +3582,7 @@ static void CALERemoveSendQueueData(CAQueueingThread_t *queueHandle, ca_mutex mu
             CALEData_t *bleData = (CALEData_t *) message->msg;
             if (bleData && bleData->remoteEndpoint)
             {
-                if (!strcmp(bleData->remoteEndpoint->addr, address))
+                if (!strcasecmp(bleData->remoteEndpoint->addr, address))
                 {
                     OIC_LOG(DEBUG, CALEADAPTER_TAG, "found the message of disconnected device");
                     if (NULL != queueHandle->destroy)
@@ -3354,12 +3599,12 @@ static void CALERemoveSendQueueData(CAQueueingThread_t *queueHandle, ca_mutex mu
             }
         }
     }
-    ca_mutex_unlock(mutex);
+    oc_mutex_unlock(mutex);
 }
 
 static void CALERemoveReceiveQueueData(u_arraylist_t *dataInfoList, const char* address)
 {
-    OIC_LOG(DEBUG, CALEADAPTER_TAG, "CALERemoveReceiveQueueData");
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "%s", __func__);
 
     VERIFY_NON_NULL_VOID(dataInfoList, CALEADAPTER_TAG, "dataInfoList");
     VERIFY_NON_NULL_VOID(address, CALEADAPTER_TAG, "address");
@@ -3371,12 +3616,19 @@ static void CALERemoveReceiveQueueData(u_arraylist_t *dataInfoList, const char*
     if (CA_STATUS_OK == CALEGetPortsFromSenderInfo(address, dataInfoList, portList))
     {
         uint32_t arrayLength = u_arraylist_length(portList);
-        for (int i = 0; i < arrayLength; i++)
+        for (uint32_t i = 0; i < arrayLength; i++)
         {
-            uint16_t port = u_arraylist_get(portList, i);
-            OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "port : %X", port);
+            uint16_t *port = (uint16_t *)u_arraylist_get(portList, i);
+            if (!port)
+            {
+                OIC_LOG(ERROR, CALEADAPTER_TAG, "Failed to get port from sender info !");
+                u_arraylist_destroy(portList);
+                return;
+            }
 
-            if (CA_STATUS_OK == CALEGetSenderInfo(address, port,
+            OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "port : %X", *port);
+
+            if (CA_STATUS_OK == CALEGetSenderInfo(address, *port,
                                                   dataInfoList, &senderInfo,
                                                   &senderIndex))
             {
@@ -3418,7 +3670,14 @@ static CAResult_t CALEGetPortsFromSenderInfo(const char *leAddress,
 
         if (!strncmp(info->remoteEndpoint->addr, leAddress, addrLength))
         {
-            u_arraylist_add(portList, (void *) info->remoteEndpoint->port);
+            uint16_t *port = (uint16_t *)OICMalloc(sizeof(uint16_t));
+            if (!port)
+            {
+                OIC_LOG(ERROR, CALEADAPTER_TAG, "memory allocation failed!");
+                return CA_MEMORY_ALLOC_FAILED;
+            }
+            *port = info->remoteEndpoint->port;
+            u_arraylist_add(portList, (void *)port);
         }
     }
 
@@ -3432,3 +3691,51 @@ static CAResult_t CALEGetPortsFromSenderInfo(const char *leAddress,
     }
 }
 #endif
+
+void CALEStartGattServer()
+{
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN %s", __func__);
+
+    oc_mutex_lock(g_bleIsServerMutex);
+    switch (g_adapterType)
+    {
+        case ADAPTER_SERVER:
+            CALEAdapterGattServerStart();
+             break;
+        case ADAPTER_CLIENT:
+            CALEAdapterGattClientStart();
+            break;
+        case ADAPTER_BOTH_CLIENT_SERVER:
+            CALEAdapterGattServerStart();
+            CALEAdapterGattClientStart();
+            break;
+        default:
+            break;
+    }
+    oc_mutex_unlock(g_bleIsServerMutex);
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "OUT %s", __func__);
+}
+
+void CALEStopGattServer()
+{
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "IN %s", __func__);
+
+    oc_mutex_lock(g_bleIsServerMutex);
+    switch (g_adapterType)
+    {
+        case ADAPTER_SERVER:
+            CALEAdapterGattServerStop();
+            break;
+        case ADAPTER_CLIENT:
+            CALEAdapterGattClientStop();
+            break;
+        case ADAPTER_BOTH_CLIENT_SERVER:
+            CALEAdapterGattServerStop();
+            CALEAdapterGattClientStop();
+            break;
+        default:
+            break;
+    }
+    oc_mutex_unlock(g_bleIsServerMutex);
+    OIC_LOG_V(DEBUG, CALEADAPTER_TAG, "OUT %s", __func__);
+}