Adding Hashed Address to BluetoothLowEnergyDeviceMac

device/bluetooth/bluetooth_low_energy_device_mac.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_DEVICE_MAC_H_
 #define DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_DEVICE_MAC_H_
 
 #if defined(OS_IOS)
 #import <CoreBluetooth/CoreBluetooth.h>
-#else
+#else  // !defined(OS_IOS)
 #import <IOBluetooth/IOBluetooth.h>
-#endif
+#endif  // defined(OS_IOS)
 
 #include "base/mac/scoped_nsobject.h"
 #include "base/mac/sdk_forward_declarations.h"
+#include "crypto/sha2.h"
 #include "device/bluetooth/bluetooth_device_mac.h"
 
 namespace device {
 
 class BluetoothLowEnergyDiscoverManagerMac;
 
-class BluetoothLowEnergyDeviceMac : public BluetoothDeviceMac {
+class DEVICE_BLUETOOTH_EXPORT BluetoothLowEnergyDeviceMac
+    : public BluetoothDeviceMac {
  public:
   BluetoothLowEnergyDeviceMac(CBPeripheral* peripheral,
                               NSDictionary* advertisementData,
                               int rssi);
   ~BluetoothLowEnergyDeviceMac() override;
 
   int GetRSSI() const;
 
   // BluetoothDevice overrides.
   std::string GetIdentifier() const override;
@@ skipping 44 matching lines @@
   // BluetoothDevice override.
   std::string GetDeviceName() const override;
 
   // Updates information about the device.
   virtual void Update(CBPeripheral* peripheral,
                       NSDictionary* advertisementData,
                       int rssi);
 
   static std::string GetPeripheralIdentifier(CBPeripheral* peripheral);
 
+  // Hashes and truncates the peripheral identifier to deterministically
+  // construct an address.  The use of fake addresses is a temporary fix before

[armansito, 2015/07/07 22:07:54]

nit: Remove extra space character before the second sentence.

[krstnmnlsn, 2015/07/07 22:43:10]

Done.

+  // we switch to using bluetooth identifiers throughout Chrome.
+  // http://crbug.com/507824
+  static std::string GetPeripheralHashAddress(CBPeripheral* peripheral);
+
  private:
   friend class BluetoothAdapterMac;
+  friend class BluetoothAdapterMacTest;
 
   // CoreBluetooth data structure.
   base::scoped_nsobject<CBPeripheral> peripheral_;
 
   // RSSI value.
   int rssi_;
 
   // Whether the device is connectable.
   bool connectable_;
 
+  // The peripheral's identifier, as returned by [CBPeripheral identifier].
+  std::string identifier_;
+
+  // A local address for the device created by hashing the peripheral
+  // identifier.
+  std::string hash_address_;
+
   // Stores the time of the most recent call to Update().
   base::scoped_nsobject<NSDate> last_update_time_;
 
   DISALLOW_COPY_AND_ASSIGN(BluetoothLowEnergyDeviceMac);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_DEVICE_MAC_H_