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      1 //
      2 // Copyright (C) 2013 The Android Open Source Project
      3 //
      4 // Licensed under the Apache License, Version 2.0 (the "License");
      5 // you may not use this file except in compliance with the License.
      6 // You may obtain a copy of the License at
      7 //
      8 //      http://www.apache.org/licenses/LICENSE-2.0
      9 //
     10 // Unless required by applicable law or agreed to in writing, software
     11 // distributed under the License is distributed on an "AS IS" BASIS,
     12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13 // See the License for the specific language governing permissions and
     14 // limitations under the License.
     15 //
     16 
     17 #ifndef UPDATE_ENGINE_HARDWARE_CHROMEOS_H_
     18 #define UPDATE_ENGINE_HARDWARE_CHROMEOS_H_
     19 
     20 #include <string>
     21 #include <vector>
     22 
     23 #include <base/macros.h>
     24 #include <base/time/time.h>
     25 #include <debugd/dbus-proxies.h>
     26 
     27 #include "update_engine/common/hardware_interface.h"
     28 
     29 namespace chromeos_update_engine {
     30 
     31 // Implements the real interface with Chrome OS verified boot and recovery
     32 // process.
     33 class HardwareChromeOS final : public HardwareInterface {
     34  public:
     35   HardwareChromeOS() = default;
     36   ~HardwareChromeOS() override = default;
     37 
     38   void Init();
     39 
     40   // HardwareInterface methods.
     41   bool IsOfficialBuild() const override;
     42   bool IsNormalBootMode() const override;
     43   bool AreDevFeaturesEnabled() const override;
     44   bool IsOOBEEnabled() const override;
     45   bool IsOOBEComplete(base::Time* out_time_of_oobe) const override;
     46   std::string GetHardwareClass() const override;
     47   std::string GetFirmwareVersion() const override;
     48   std::string GetECVersion() const override;
     49   int GetPowerwashCount() const override;
     50   bool SchedulePowerwash() override;
     51   bool CancelPowerwash() override;
     52   bool GetNonVolatileDirectory(base::FilePath* path) const override;
     53   bool GetPowerwashSafeDirectory(base::FilePath* path) const override;
     54 
     55  private:
     56   friend class HardwareChromeOSTest;
     57 
     58   // Load the update manager config flags (is_oobe_enabled flag) from the
     59   // appropriate location based on whether we are in a normal mode boot (as
     60   // passed in |normal_mode|) prefixing the paths with |root_prefix|.
     61   void LoadConfig(const std::string& root_prefix, bool normal_mode);
     62 
     63   bool is_oobe_enabled_;
     64 
     65   std::unique_ptr<org::chromium::debugdProxyInterface> debugd_proxy_;
     66 
     67   DISALLOW_COPY_AND_ASSIGN(HardwareChromeOS);
     68 };
     69 
     70 }  // namespace chromeos_update_engine
     71 
     72 #endif  // UPDATE_ENGINE_HARDWARE_CHROMEOS_H_
     73