1// 2// Copyright (C) 2015 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_PAYLOAD_GENERATOR_RAW_FILESYSTEM_H_ 18#define UPDATE_ENGINE_PAYLOAD_GENERATOR_RAW_FILESYSTEM_H_ 19 20// A simple filesystem interface implementation used for unknown filesystem 21// format such as the kernel. 22 23#include "update_engine/payload_generator/filesystem_interface.h" 24 25#include <string> 26#include <vector> 27 28namespace chromeos_update_engine { 29 30class RawFilesystem : public FilesystemInterface { 31 public: 32 static std::unique_ptr<RawFilesystem> Create( 33 const std::string& filename, uint64_t block_size, uint64_t block_count); 34 virtual ~RawFilesystem() = default; 35 36 // FilesystemInterface overrides. 37 size_t GetBlockSize() const override; 38 size_t GetBlockCount() const override; 39 40 // GetFiles will return only one file with all the blocks of the filesystem 41 // with the name passed during construction. 42 bool GetFiles(std::vector<File>* files) const override; 43 44 bool LoadSettings(brillo::KeyValueStore* store) const override { 45 return false; 46 } 47 48 private: 49 RawFilesystem() = default; 50 51 std::string filename_; 52 uint64_t block_count_; 53 uint64_t block_size_; 54 55 DISALLOW_COPY_AND_ASSIGN(RawFilesystem); 56}; 57 58} // namespace chromeos_update_engine 59 60#endif // UPDATE_ENGINE_PAYLOAD_GENERATOR_RAW_FILESYSTEM_H_ 61