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_CROS_HARDWARE_CHROMEOS_H_ 18 #define UPDATE_ENGINE_CROS_HARDWARE_CHROMEOS_H_ 19 20 #include <memory> 21 #include <string> 22 #include <vector> 23 24 #include <base/macros.h> 25 #include <base/time/time.h> 26 #include <debugd/dbus-proxies.h> 27 28 #include "update_engine/common/error_code.h" 29 #include "update_engine/common/hardware_interface.h" 30 31 namespace chromeos_update_engine { 32 33 // Implements the real interface with Chrome OS verified boot and recovery 34 // process. 35 class HardwareChromeOS final : public HardwareInterface { 36 public: 37 HardwareChromeOS() = default; 38 ~HardwareChromeOS() override = default; 39 40 void Init(); 41 42 // HardwareInterface methods. 43 bool IsOfficialBuild() const override; 44 bool IsNormalBootMode() const override; 45 bool AreDevFeaturesEnabled() const override; 46 bool IsOOBEEnabled() const override; 47 bool IsOOBEComplete(base::Time* out_time_of_oobe) const override; 48 std::string GetHardwareClass() const override; 49 std::string GetDeviceRequisition() const override; 50 int GetMinKernelKeyVersion() const override; 51 int GetMinFirmwareKeyVersion() const override; 52 int GetMaxFirmwareKeyRollforward() const override; 53 bool SetMaxFirmwareKeyRollforward(int firmware_max_rollforward) override; 54 bool SetMaxKernelKeyRollforward(int kernel_max_rollforward) override; 55 int GetPowerwashCount() const override; 56 bool SchedulePowerwash(bool save_rollback_data) override; 57 bool CancelPowerwash() override; 58 bool GetNonVolatileDirectory(base::FilePath* path) const override; 59 bool GetPowerwashSafeDirectory(base::FilePath* path) const override; 60 int64_t GetBuildTimestamp() const override; AllowDowngrade()61 bool AllowDowngrade() const override { return false; } 62 bool GetFirstActiveOmahaPingSent() const override; 63 bool SetFirstActiveOmahaPingSent() override; 64 void SetWarmReset(bool warm_reset) override; 65 void SetVbmetaDigestForInactiveSlot(bool reset) override; 66 std::string GetVersionForLogging( 67 const std::string& partition_name) const override; 68 ErrorCode IsPartitionUpdateValid( 69 const std::string& partition_name, 70 const std::string& new_version) const override; 71 const char* GetPartitionMountOptions( 72 const std::string& partition_name) const override; 73 74 private: 75 friend class HardwareChromeOSTest; 76 77 // Load the update manager config flags (is_oobe_enabled flag) from the 78 // appropriate location based on whether we are in a normal mode boot (as 79 // passed in |normal_mode|) prefixing the paths with |root_prefix|. 80 void LoadConfig(const std::string& root_prefix, bool normal_mode); 81 82 bool is_oobe_enabled_; 83 84 std::unique_ptr<org::chromium::debugdProxyInterface> debugd_proxy_; 85 86 DISALLOW_COPY_AND_ASSIGN(HardwareChromeOS); 87 }; 88 89 } // namespace chromeos_update_engine 90 91 #endif // UPDATE_ENGINE_CROS_HARDWARE_CHROMEOS_H_ 92