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/*
* Copyright (C) 2019 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.
*/
#pragma once
#include <map>
#include <memory>
#include <mutex>
#include <sstream>
#include <string>
#include <vector>
#include <android-base/unique_fd.h>
#include <android/gsi/BnGsiService.h>
#include <binder/BinderService.h>
#include <libfiemap/split_fiemap_writer.h>
#include <liblp/builder.h>
#include "libgsi/libgsi.h"
#include "partition_installer.h"
namespace android {
namespace gsi {
class GsiService : public BinderService<GsiService>, public BnGsiService {
public:
static void Register(const std::string& name);
binder::Status openInstall(const std::string& install_dir, int* _aidl_return) override;
binder::Status closeInstall(int32_t* _aidl_return) override;
binder::Status createPartition(const ::std::string& name, int64_t size, bool readOnly,
int32_t* _aidl_return) override;
binder::Status closePartition(int32_t* _aidl_return) override;
binder::Status commitGsiChunkFromStream(const ::android::os::ParcelFileDescriptor& stream,
int64_t bytes, bool* _aidl_return) override;
binder::Status getInstallProgress(::android::gsi::GsiProgress* _aidl_return) override;
binder::Status setGsiAshmem(const ::android::os::ParcelFileDescriptor& ashmem, int64_t size,
bool* _aidl_return) override;
binder::Status commitGsiChunkFromAshmem(int64_t bytes, bool* _aidl_return) override;
binder::Status cancelGsiInstall(bool* _aidl_return) override;
binder::Status enableGsi(bool oneShot, const std::string& dsuSlot, int* _aidl_return) override;
binder::Status enableGsiAsync(bool oneShot, const ::std::string& dsuSlot,
const sp<IGsiServiceCallback>& resultCallback) override;
binder::Status isGsiEnabled(bool* _aidl_return) override;
binder::Status removeGsi(bool* _aidl_return) override;
binder::Status removeGsiAsync(const sp<IGsiServiceCallback>& resultCallback) override;
binder::Status disableGsi(bool* _aidl_return) override;
binder::Status isGsiInstalled(bool* _aidl_return) override;
binder::Status isGsiRunning(bool* _aidl_return) override;
binder::Status isGsiInstallInProgress(bool* _aidl_return) override;
binder::Status getInstalledGsiImageDir(std::string* _aidl_return) override;
binder::Status getActiveDsuSlot(std::string* _aidl_return) override;
binder::Status getInstalledDsuSlots(std::vector<std::string>* _aidl_return) override;
binder::Status zeroPartition(const std::string& name, int* _aidl_return) override;
binder::Status openImageService(const std::string& prefix,
android::sp<IImageService>* _aidl_return) override;
binder::Status dumpDeviceMapperDevices(std::string* _aidl_return) override;
binder::Status getAvbPublicKey(AvbPublicKey* dst, int32_t* _aidl_return) override;
binder::Status suggestScratchSize(int64_t* _aidl_return) override;
// This is in GsiService, rather than GsiInstaller, since we need to access
// it outside of the main lock which protects the unique_ptr.
void StartAsyncOperation(const std::string& step, int64_t total_bytes);
void UpdateProgress(int status, int64_t bytes_processed);
// Helper methods for GsiInstaller.
static bool RemoveGsiFiles(const std::string& install_dir);
bool should_abort() const { return should_abort_; }
static void RunStartupTasks();
static void VerifyImageMaps();
static std::string GetInstalledImageDir();
std::string GetActiveDsuSlot();
std::string GetActiveInstalledImageDir();
static std::vector<std::string> GetInstalledDsuSlots();
GsiService();
private:
friend class ImageService;
static int ValidateInstallParams(std::string& install_dir);
int EnableGsi(bool one_shot, const std::string& dsu_slot);
bool DisableGsiInstall();
static void CleanCorruptedInstallation();
static int SaveInstallation(const std::string&);
static bool IsInstallationComplete(const std::string&);
static std::string GetCompleteIndication(const std::string&);
enum class AccessLevel { System, SystemOrShell };
binder::Status CheckUid(AccessLevel level = AccessLevel::System);
// Mark install completion, and reset boot attempt counter.
// Next boot will try to boot into DSU.
bool ResetBootAttemptCounter();
bool SetBootMode(bool one_shot);
static android::wp<GsiService> sInstance;
std::string install_dir_ = {};
std::unique_ptr<PartitionInstaller> installer_;
std::mutex lock_;
std::mutex& lock() { return lock_; }
// These are initialized or set in StartInstall().
std::atomic<bool> should_abort_ = false;
// Progress bar state.
std::mutex progress_lock_;
GsiProgress progress_;
};
} // namespace gsi
} // namespace android
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