//
|
// Copyright (C) 2015 The Android Open Source Project
|
//
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
// you may not use this file except in compliance with the License.
|
// You may obtain a copy of the License at
|
//
|
// http://www.apache.org/licenses/LICENSE-2.0
|
//
|
// Unless required by applicable law or agreed to in writing, software
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
// See the License for the specific language governing permissions and
|
// limitations under the License.
|
//
|
|
#ifndef UPDATE_ENGINE_BOOT_CONTROL_ANDROID_H_
|
#define UPDATE_ENGINE_BOOT_CONTROL_ANDROID_H_
|
|
#include <map>
|
#include <memory>
|
#include <string>
|
|
#include <android/hardware/boot/1.0/IBootControl.h>
|
#include <base/files/file_util.h>
|
#include <liblp/builder.h>
|
|
#include "update_engine/common/boot_control.h"
|
#include "update_engine/dynamic_partition_control_interface.h"
|
|
namespace chromeos_update_engine {
|
|
// The Android implementation of the BootControlInterface. This implementation
|
// uses the libhardware's boot_control HAL to access the bootloader.
|
class BootControlAndroid : public BootControlInterface {
|
public:
|
BootControlAndroid() = default;
|
~BootControlAndroid() = default;
|
|
// Load boot_control HAL implementation using libhardware and
|
// initializes it. Returns false if an error occurred.
|
bool Init();
|
|
// BootControlInterface overrides.
|
unsigned int GetNumSlots() const override;
|
BootControlInterface::Slot GetCurrentSlot() const override;
|
bool GetPartitionDevice(const std::string& partition_name,
|
BootControlInterface::Slot slot,
|
std::string* device) const override;
|
bool IsSlotBootable(BootControlInterface::Slot slot) const override;
|
bool MarkSlotUnbootable(BootControlInterface::Slot slot) override;
|
bool SetActiveBootSlot(BootControlInterface::Slot slot) override;
|
bool MarkBootSuccessfulAsync(base::Callback<void(bool)> callback) override;
|
bool InitPartitionMetadata(Slot slot,
|
const PartitionMetadata& partition_metadata,
|
bool update_metadata) override;
|
void Cleanup() override;
|
|
private:
|
::android::sp<::android::hardware::boot::V1_0::IBootControl> module_;
|
std::unique_ptr<DynamicPartitionControlInterface> dynamic_control_;
|
|
friend class BootControlAndroidTest;
|
|
// Wrapper method of IBootControl::getSuffix().
|
bool GetSuffix(Slot slot, std::string* out) const;
|
|
enum class DynamicPartitionDeviceStatus {
|
SUCCESS,
|
ERROR,
|
TRY_STATIC,
|
};
|
|
DynamicPartitionDeviceStatus GetDynamicPartitionDevice(
|
const base::FilePath& device_dir,
|
const std::string& partition_name_suffix,
|
Slot slot,
|
std::string* device) const;
|
|
// Return true if |partition_name_suffix| is a block device of
|
// super partition metadata slot |slot|.
|
bool IsSuperBlockDevice(const base::FilePath& device_dir,
|
Slot slot,
|
const std::string& partition_name_suffix) const;
|
|
// Whether the target partitions should be loaded as dynamic partitions. Set
|
// by InitPartitionMetadata() per each update.
|
bool is_target_dynamic_{false};
|
|
DISALLOW_COPY_AND_ASSIGN(BootControlAndroid);
|
};
|
|
} // namespace chromeos_update_engine
|
|
#endif // UPDATE_ENGINE_BOOT_CONTROL_ANDROID_H_
|
