feat: add API to get random address

Signed-off-by: Lorenzo Bini <lorenzo.bini@studenti.unimi.it>

Author: Lorenzo Bini

src/local/BLELocalDevice.cpp

@@ -133,6 +133,15 @@ int BLELocalDevice::begin()
    * Force both MSB bits to b00 in order to define Static Random Address
    */
   randomNumber[5] |= 0xC0;
+
+  // Copy the random address in private variable as it will be sent to the BLE chip
+  randomAddress [0] = randomNumber[0];
+  randomAddress [1] = randomNumber[1];
+  randomAddress [2] = randomNumber[2];
+  randomAddress [3] = randomNumber[3];
+  randomAddress [4] = randomNumber[4];
+  randomAddress [5] = randomNumber[5];
+
   if (HCI.leSetRandomAddress((uint8_t*)randomNumber) != 0) {
     end();
     return 0;
@@ -247,6 +256,16 @@ void BLELocalDevice::end()
   _scanResponseData.clear();
 }
 
+void BLELocalDevice::getRandomAddress(uint8_t buff[6])
+{
+  buff [0] = randomAddress[0];
+  buff [1] = randomAddress[1];
+  buff [2] = randomAddress[2];
+  buff [3] = randomAddress[3];
+  buff [4] = randomAddress[4];
+  buff [5] = randomAddress[5];
+}
+
 void BLELocalDevice::poll()
 {
   HCI.poll();

src/local/BLELocalDevice.h

@@ -91,6 +91,8 @@ class BLELocalDevice {
 
   virtual void setTimeout(unsigned long timeout);
 
+  virtual void getRandomAddress(uint8_t buff[6]);
+
   virtual void debug(Stream& stream);
   virtual void noDebug();
 
@@ -122,6 +124,7 @@ class BLELocalDevice {
   virtual BLEAdvertisingData& getScanResponseData();
 
 private:
+  uint8_t randomAddress[6];
   BLEAdvertisingData _advertisingData;
   BLEAdvertisingData _scanResponseData;
   uint8_t _ownBdaddrType;