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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 <memory>
#include <mutex>
#include <sstream>
#include <vector>
#include <android-base/unique_fd.h>
#include <android/gsi/BnGsiService.h>
#include <binder/BinderService.h>
#include <libfiemap_writer/fiemap_writer.h>
#include <liblp/builder.h>
#include "libgsi/libgsi.h"
namespace android {
namespace gsi {
class GsiService : public BinderService<GsiService>, public BnGsiService {
public:
static void Register();
~GsiService() override;
binder::Status startGsiInstall(int64_t gsiSize, int64_t userdataSize,
bool* _aidl_return) override;
binder::Status commitGsiChunkFromStream(const ::android::os::ParcelFileDescriptor& stream,
int64_t bytes, bool* _aidl_return) override;
binder::Status commitGsiChunkFromMemory(const ::std::vector<uint8_t>& bytes,
bool* _aidl_return) override;
binder::Status setGsiBootable(bool* _aidl_return) override;
binder::Status removeGsiInstall(bool* _aidl_return) override;
binder::Status isGsiRunning(bool* _aidl_return) override;
static char const* getServiceName() { return kGsiServiceName; }
private:
using LpMetadata = android::fs_mgr::LpMetadata;
using MetadataBuilder = android::fs_mgr::MetadataBuilder;
bool StartInstall(int64_t gsi_size, int64_t userdata_size);
bool PerformSanityChecks();
bool PreallocateFiles();
bool FormatUserdata();
bool CommitGsiChunk(int stream_fd, int64_t bytes);
bool CommitGsiChunk(const void* data, size_t bytes);
bool SetGsiBootable();
bool RemoveGsiInstall();
bool EnsureFolderExists(const std::string& path);
bool AddPartitionFiemap(android::fs_mgr::MetadataBuilder* builder,
android::fs_mgr::Partition* partition,
android::fiemap_writer::FiemapWriter* writer);
std::unique_ptr<MetadataBuilder> CreateMetadataBuilder();
fiemap_writer::FiemapUniquePtr CreateFiemapWriter(const std::string& path, uint64_t size);
bool CreateBootableFile();
bool CreateMetadataFile();
void PostInstallCleanup();
std::mutex main_lock_;
bool installing_ = false;
uint64_t userdata_block_size_;
uint64_t system_block_size_;
uint64_t gsi_size_;
uint64_t userdata_size_;
// Remaining data we're waiting to receive for the GSI image.
uint64_t gsi_bytes_written_;
android::base::unique_fd system_fd_;
std::unique_ptr<LpMetadata> metadata_;
};
} // namespace gsi
} // namespace android
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