diff options
54 files changed, 1926 insertions, 1959 deletions
diff --git a/src/common/file_util.cpp b/src/common/file_util.cpp index 7213abe18..bf955386c 100644 --- a/src/common/file_util.cpp +++ b/src/common/file_util.cpp @@ -2,6 +2,7 @@ // Licensed under GPLv2 or any later version // Refer to the license.txt file included. +#include <sstream> #include "common/assert.h" #include "common/common_funcs.h" #include "common/common_paths.h" @@ -386,7 +387,7 @@ u64 GetSize(FILE* f) { bool CreateEmptyFile(const std::string& filename) { LOG_TRACE(Common_Filesystem, "{}", filename); - if (!FileUtil::IOFile(filename, "wb")) { + if (!FileUtil::IOFile(filename, "wb").IsOpen()) { LOG_ERROR(Common_Filesystem, "failed {}: {}", filename, GetLastErrorMsg()); return false; } @@ -750,7 +751,7 @@ size_t WriteStringToFile(bool text_file, const std::string& str, const char* fil size_t ReadFileToString(bool text_file, const char* filename, std::string& str) { IOFile file(filename, text_file ? "r" : "rb"); - if (!file) + if (!file.IsOpen()) return false; str.resize(static_cast<u32>(file.GetSize())); @@ -799,6 +800,71 @@ void SplitFilename83(const std::string& filename, std::array<char, 9>& short_nam } } +std::vector<std::string> SplitPathComponents(const std::string& filename) { + auto copy(filename); + std::replace(copy.begin(), copy.end(), '\\', '/'); + std::vector<std::string> out; + + std::stringstream stream(filename); + std::string item; + while (std::getline(stream, item, '/')) + out.push_back(std::move(item)); + + return out; +} + +std::string GetParentPath(const std::string& path) { + auto out = path; + const auto name_bck_index = out.find_last_of('\\'); + const auto name_fwd_index = out.find_last_of('/'); + size_t name_index; + if (name_bck_index == std::string::npos || name_fwd_index == std::string::npos) + name_index = std::min<size_t>(name_bck_index, name_fwd_index); + else + name_index = std::max<size_t>(name_bck_index, name_fwd_index); + + return out.erase(name_index); +} + +std::string GetPathWithoutTop(std::string path) { + if (path.empty()) + return ""; + while (path[0] == '\\' || path[0] == '/') { + path = path.substr(1); + if (path.empty()) + return ""; + } + const auto name_bck_index = path.find_first_of('\\'); + const auto name_fwd_index = path.find_first_of('/'); + return path.substr(std::min<size_t>(name_bck_index, name_fwd_index) + 1); + return path.substr(std::min<size_t>(name_bck_index, name_fwd_index) + 1); +} + +std::string GetFilename(std::string path) { + std::replace(path.begin(), path.end(), '\\', '/'); + auto name_index = path.find_last_of('/'); + if (name_index == std::string::npos) + return ""; + return path.substr(name_index + 1); +} + +std::string GetExtensionFromFilename(const std::string& name) { + size_t index = name.find_last_of('.'); + if (index == std::string::npos) + return ""; + + return name.substr(index + 1); +} + +std::string RemoveTrailingSlash(const std::string& path) { + if (path.empty()) + return path; + if (path.back() == '\\' || path.back() == '/') + return path.substr(0, path.size() - 1); + + return path; +} + IOFile::IOFile() {} IOFile::IOFile(const std::string& filename, const char openmode[], int flags) { @@ -820,7 +886,6 @@ IOFile& IOFile::operator=(IOFile&& other) noexcept { void IOFile::Swap(IOFile& other) noexcept { std::swap(m_file, other.m_file); - std::swap(m_good, other.m_good); } bool IOFile::Open(const std::string& filename, const char openmode[], int flags) { @@ -837,16 +902,15 @@ bool IOFile::Open(const std::string& filename, const char openmode[], int flags) m_file = fopen(filename.c_str(), openmode); #endif - m_good = IsOpen(); - return m_good; + return IsOpen(); } bool IOFile::Close() { if (!IsOpen() || 0 != std::fclose(m_file)) - m_good = false; + return false; m_file = nullptr; - return m_good; + return true; } u64 IOFile::GetSize() const { @@ -856,11 +920,8 @@ u64 IOFile::GetSize() const { return 0; } -bool IOFile::Seek(s64 off, int origin) { - if (!IsOpen() || 0 != fseeko(m_file, off, origin)) - m_good = false; - - return m_good; +bool IOFile::Seek(s64 off, int origin) const { + return IsOpen() && 0 == fseeko(m_file, off, origin); } u64 IOFile::Tell() const { @@ -871,26 +932,20 @@ u64 IOFile::Tell() const { } bool IOFile::Flush() { - if (!IsOpen() || 0 != std::fflush(m_file)) - m_good = false; - - return m_good; + return IsOpen() && 0 == std::fflush(m_file); } bool IOFile::Resize(u64 size) { - if (!IsOpen() || 0 != + return IsOpen() && 0 == #ifdef _WIN32 - // ector: _chsize sucks, not 64-bit safe - // F|RES: changed to _chsize_s. i think it is 64-bit safe - _chsize_s(_fileno(m_file), size) + // ector: _chsize sucks, not 64-bit safe + // F|RES: changed to _chsize_s. i think it is 64-bit safe + _chsize_s(_fileno(m_file), size) #else - // TODO: handle 64bit and growing - ftruncate(fileno(m_file), size) + // TODO: handle 64bit and growing + ftruncate(fileno(m_file), size) #endif - ) - m_good = false; - - return m_good; + ; } } // namespace FileUtil diff --git a/src/common/file_util.h b/src/common/file_util.h index 5bc7fbf7c..026c84d94 100644 --- a/src/common/file_util.h +++ b/src/common/file_util.h @@ -150,6 +150,34 @@ size_t ReadFileToString(bool text_file, const char* filename, std::string& str); void SplitFilename83(const std::string& filename, std::array<char, 9>& short_name, std::array<char, 4>& extension); +// Splits the path on '/' or '\' and put the components into a vector +// i.e. "C:\Users\Yuzu\Documents\save.bin" becomes {"C:", "Users", "Yuzu", "Documents", "save.bin" } +std::vector<std::string> SplitPathComponents(const std::string& filename); + +// Gets all of the text up to the last '/' or '\' in the path. +std::string GetParentPath(const std::string& path); + +// Gets all of the text after the first '/' or '\' in the path. +std::string GetPathWithoutTop(std::string path); + +// Gets the filename of the path +std::string GetFilename(std::string path); + +// Gets the extension of the filename +std::string GetExtensionFromFilename(const std::string& name); + +// Removes the final '/' or '\' if one exists +std::string RemoveTrailingSlash(const std::string& path); + +// Creates a new vector containing indices [first, last) from the original. +template <typename T> +std::vector<T> SliceVector(const std::vector<T>& vector, size_t first, size_t last) { + if (first >= last) + return {}; + last = std::min<size_t>(last, vector.size()); + return std::vector<T>(vector.begin() + first, vector.begin() + first + last); +} + // simple wrapper for cstdlib file functions to // hopefully will make error checking easier // and make forgetting an fclose() harder @@ -172,41 +200,27 @@ public: bool Close(); template <typename T> - size_t ReadArray(T* data, size_t length) { + size_t ReadArray(T* data, size_t length) const { static_assert(std::is_trivially_copyable<T>(), "Given array does not consist of trivially copyable objects"); - if (!IsOpen()) { - m_good = false; + if (!IsOpen()) return -1; - } - - size_t items_read = std::fread(data, sizeof(T), length, m_file); - if (items_read != length) - m_good = false; - return items_read; + return std::fread(data, sizeof(T), length, m_file); } template <typename T> size_t WriteArray(const T* data, size_t length) { static_assert(std::is_trivially_copyable<T>(), "Given array does not consist of trivially copyable objects"); - - if (!IsOpen()) { - m_good = false; + if (!IsOpen()) return -1; - } - - size_t items_written = std::fwrite(data, sizeof(T), length, m_file); - if (items_written != length) - m_good = false; - - return items_written; + return std::fwrite(data, sizeof(T), length, m_file); } template <typename T> - size_t ReadBytes(T* data, size_t length) { + size_t ReadBytes(T* data, size_t length) const { static_assert(std::is_trivially_copyable<T>(), "T must be trivially copyable"); return ReadArray(reinterpret_cast<char*>(data), length); } @@ -231,15 +245,7 @@ public: return nullptr != m_file; } - // m_good is set to false when a read, write or other function fails - bool IsGood() const { - return m_good; - } - explicit operator bool() const { - return IsGood(); - } - - bool Seek(s64 off, int origin); + bool Seek(s64 off, int origin) const; u64 Tell() const; u64 GetSize() const; bool Resize(u64 size); @@ -247,13 +253,11 @@ public: // clear error state void Clear() { - m_good = true; std::clearerr(m_file); } private: std::FILE* m_file = nullptr; - bool m_good = true; }; } // namespace FileUtil diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt index 3dff068df..0a5d58eea 100644 --- a/src/core/CMakeLists.txt +++ b/src/core/CMakeLists.txt @@ -8,27 +8,27 @@ add_library(core STATIC core_cpu.h core_timing.cpp core_timing.h + file_sys/content_archive.cpp + file_sys/content_archive.h file_sys/directory.h - file_sys/disk_filesystem.cpp - file_sys/disk_filesystem.h file_sys/errors.h - file_sys/filesystem.cpp - file_sys/filesystem.h + file_sys/mode.h file_sys/partition_filesystem.cpp file_sys/partition_filesystem.h - file_sys/path_parser.cpp - file_sys/path_parser.h file_sys/program_metadata.cpp file_sys/program_metadata.h file_sys/romfs_factory.cpp file_sys/romfs_factory.h - file_sys/romfs_filesystem.cpp - file_sys/romfs_filesystem.h file_sys/savedata_factory.cpp file_sys/savedata_factory.h file_sys/sdmc_factory.cpp file_sys/sdmc_factory.h - file_sys/storage.h + file_sys/vfs.cpp + file_sys/vfs.h + file_sys/vfs_offset.cpp + file_sys/vfs_offset.h + file_sys/vfs_real.cpp + file_sys/vfs_real.h frontend/emu_window.cpp frontend/emu_window.h frontend/framebuffer_layout.cpp diff --git a/src/core/core.cpp b/src/core/core.cpp index 8335d502e..82db5cccf 100644 --- a/src/core/core.cpp +++ b/src/core/core.cpp @@ -19,6 +19,7 @@ #include "core/loader/loader.h" #include "core/memory_setup.h" #include "core/settings.h" +#include "file_sys/vfs_real.h" #include "video_core/video_core.h" namespace Core { @@ -84,7 +85,7 @@ System::ResultStatus System::SingleStep() { } System::ResultStatus System::Load(EmuWindow* emu_window, const std::string& filepath) { - app_loader = Loader::GetLoader(filepath); + app_loader = Loader::GetLoader(std::make_shared<FileSys::RealVfsFile>(filepath)); if (!app_loader) { LOG_CRITICAL(Core, "Failed to obtain loader for {}!", filepath); diff --git a/src/core/file_sys/content_archive.cpp b/src/core/file_sys/content_archive.cpp new file mode 100644 index 000000000..6cfef774d --- /dev/null +++ b/src/core/file_sys/content_archive.cpp @@ -0,0 +1,167 @@ +// Copyright 2018 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "common/logging/log.h" +#include "core/file_sys/content_archive.h" +#include "core/file_sys/vfs_offset.h" +#include "core/loader/loader.h" + +namespace FileSys { + +// Media offsets in headers are stored divided by 512. Mult. by this to get real offset. +constexpr u64 MEDIA_OFFSET_MULTIPLIER = 0x200; + +constexpr u64 SECTION_HEADER_SIZE = 0x200; +constexpr u64 SECTION_HEADER_OFFSET = 0x400; + +constexpr u32 IVFC_MAX_LEVEL = 6; + +enum class NCASectionFilesystemType : u8 { + PFS0 = 0x2, + ROMFS = 0x3, +}; + +struct NCASectionHeaderBlock { + INSERT_PADDING_BYTES(3); + NCASectionFilesystemType filesystem_type; + u8 crypto_type; + INSERT_PADDING_BYTES(3); +}; +static_assert(sizeof(NCASectionHeaderBlock) == 0x8, "NCASectionHeaderBlock has incorrect size."); + +struct PFS0Superblock { + NCASectionHeaderBlock header_block; + std::array<u8, 0x20> hash; + u32_le size; + INSERT_PADDING_BYTES(4); + u64_le hash_table_offset; + u64_le hash_table_size; + u64_le pfs0_header_offset; + u64_le pfs0_size; + INSERT_PADDING_BYTES(432); +}; +static_assert(sizeof(PFS0Superblock) == 0x200, "PFS0Superblock has incorrect size."); + +struct IVFCLevel { + u64_le offset; + u64_le size; + u32_le block_size; + u32_le reserved; +}; +static_assert(sizeof(IVFCLevel) == 0x18, "IVFCLevel has incorrect size."); + +struct RomFSSuperblock { + NCASectionHeaderBlock header_block; + u32_le magic; + u32_le magic_number; + INSERT_PADDING_BYTES(8); + std::array<IVFCLevel, 6> levels; + INSERT_PADDING_BYTES(64); +}; +static_assert(sizeof(RomFSSuperblock) == 0xE8, "RomFSSuperblock has incorrect size."); + +NCA::NCA(VirtualFile file_) : file(file_) { + if (sizeof(NCAHeader) != file->ReadObject(&header)) + LOG_CRITICAL(Loader, "File reader errored out during header read."); + + if (!IsValidNCA(header)) { + status = Loader::ResultStatus::ErrorInvalidFormat; + return; + } + + std::ptrdiff_t number_sections = + std::count_if(std::begin(header.section_tables), std::end(header.section_tables), + [](NCASectionTableEntry entry) { return entry.media_offset > 0; }); + + for (std::ptrdiff_t i = 0; i < number_sections; ++i) { + // Seek to beginning of this section. + NCASectionHeaderBlock block{}; + if (sizeof(NCASectionHeaderBlock) != + file->ReadObject(&block, SECTION_HEADER_OFFSET + i * SECTION_HEADER_SIZE)) + LOG_CRITICAL(Loader, "File reader errored out during header read."); + + if (block.filesystem_type == NCASectionFilesystemType::ROMFS) { + RomFSSuperblock sb{}; + if (sizeof(RomFSSuperblock) != + file->ReadObject(&sb, SECTION_HEADER_OFFSET + i * SECTION_HEADER_SIZE)) + LOG_CRITICAL(Loader, "File reader errored out during header read."); + + const size_t romfs_offset = + header.section_tables[i].media_offset * MEDIA_OFFSET_MULTIPLIER + + sb.levels[IVFC_MAX_LEVEL - 1].offset; + const size_t romfs_size = sb.levels[IVFC_MAX_LEVEL - 1].size; + files.emplace_back(std::make_shared<OffsetVfsFile>(file, romfs_size, romfs_offset)); + romfs = files.back(); + } else if (block.filesystem_type == NCASectionFilesystemType::PFS0) { + PFS0Superblock sb{}; + // Seek back to beginning of this section. + if (sizeof(PFS0Superblock) != + file->ReadObject(&sb, SECTION_HEADER_OFFSET + i * SECTION_HEADER_SIZE)) + LOG_CRITICAL(Loader, "File reader errored out during header read."); + + u64 offset = (static_cast<u64>(header.section_tables[i].media_offset) * + MEDIA_OFFSET_MULTIPLIER) + + sb.pfs0_header_offset; + u64 size = MEDIA_OFFSET_MULTIPLIER * (header.section_tables[i].media_end_offset - + header.section_tables[i].media_offset); + auto npfs = std::make_shared<PartitionFilesystem>( + std::make_shared<OffsetVfsFile>(file, size, offset)); + + if (npfs->GetStatus() == Loader::ResultStatus::Success) { + dirs.emplace_back(npfs); + if (IsDirectoryExeFS(dirs.back())) + exefs = dirs.back(); + } + } + } + + status = Loader::ResultStatus::Success; +} + +Loader::ResultStatus NCA::GetStatus() const { + return status; +} + +std::vector<std::shared_ptr<VfsFile>> NCA::GetFiles() const { + if (status != Loader::ResultStatus::Success) + return {}; + return files; +} + +std::vector<std::shared_ptr<VfsDirectory>> NCA::GetSubdirectories() const { + if (status != Loader::ResultStatus::Success) + return {}; + return dirs; +} + +std::string NCA::GetName() const { + return file->GetName(); +} + +std::shared_ptr<VfsDirectory> NCA::GetParentDirectory() const { + return file->GetContainingDirectory(); +} + +NCAContentType NCA::GetType() const { + return header.content_type; +} + +u64 NCA::GetTitleId() const { + if (status != Loader::ResultStatus::Success) + return {}; + return header.title_id; +} + +VirtualFile NCA::GetRomFS() const { + return romfs; +} + +VirtualDir NCA::GetExeFS() const { + return exefs; +} + +bool NCA::ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) { + return false; +} +} // namespace FileSys diff --git a/src/core/file_sys/content_archive.h b/src/core/file_sys/content_archive.h new file mode 100644 index 000000000..129a70b97 --- /dev/null +++ b/src/core/file_sys/content_archive.h @@ -0,0 +1,95 @@ +// Copyright 2018 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include "common/common_funcs.h" +#include "common/common_types.h" +#include "common/swap.h" +#include "core/file_sys/partition_filesystem.h" + +namespace FileSys { + +enum class NCAContentType : u8 { + Program = 0, + Meta = 1, + Control = 2, + Manual = 3, + Data = 4, +}; + +struct NCASectionTableEntry { + u32_le media_offset; + u32_le media_end_offset; + INSERT_PADDING_BYTES(0x8); +}; +static_assert(sizeof(NCASectionTableEntry) == 0x10, "NCASectionTableEntry has incorrect size."); + +struct NCAHeader { + std::array<u8, 0x100> rsa_signature_1; + std::array<u8, 0x100> rsa_signature_2; + u32_le magic; + u8 is_system; + NCAContentType content_type; + u8 crypto_type; + u8 key_index; + u64_le size; + u64_le title_id; + INSERT_PADDING_BYTES(0x4); + u32_le sdk_version; + u8 crypto_type_2; + INSERT_PADDING_BYTES(15); + std::array<u8, 0x10> rights_id; + std::array<NCASectionTableEntry, 0x4> section_tables; + std::array<std::array<u8, 0x20>, 0x4> hash_tables; + std::array<std::array<u8, 0x10>, 0x4> key_area; + INSERT_PADDING_BYTES(0xC0); +}; +static_assert(sizeof(NCAHeader) == 0x400, "NCAHeader has incorrect size."); + +inline bool IsDirectoryExeFS(std::shared_ptr<FileSys::VfsDirectory> pfs) { + // According to switchbrew, an exefs must only contain these two files: + return pfs->GetFile("main") != nullptr && pfs->GetFile("main.npdm") != nullptr; +} + +inline bool IsValidNCA(const NCAHeader& header) { + return header.magic == Common::MakeMagic('N', 'C', 'A', '2') || + header.magic == Common::MakeMagic('N', 'C', 'A', '3'); +} + +// An implementation of VfsDirectory that represents a Nintendo Content Archive (NCA) conatiner. +// After construction, use GetStatus to determine if the file is valid and ready to be used. +class NCA : public ReadOnlyVfsDirectory { +public: + explicit NCA(VirtualFile file); + Loader::ResultStatus GetStatus() const; + + std::vector<std::shared_ptr<VfsFile>> GetFiles() const override; + std::vector<std::shared_ptr<VfsDirectory>> GetSubdirectories() const override; + std::string GetName() const override; + std::shared_ptr<VfsDirectory> GetParentDirectory() const override; + + NCAContentType GetType() const; + u64 GetTitleId() const; + + VirtualFile GetRomFS() const; + VirtualDir GetExeFS() const; + +protected: + bool ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) override; + +private: + std::vector<VirtualDir> dirs; + std::vector<VirtualFile> files; + + VirtualFile romfs = nullptr; + VirtualDir exefs = nullptr; + VirtualFile file; + + NCAHeader header{}; + + Loader::ResultStatus status{}; +}; + +} // namespace FileSys diff --git a/src/core/file_sys/directory.h b/src/core/file_sys/directory.h index c7639795e..213ce1826 100644 --- a/src/core/file_sys/directory.h +++ b/src/core/file_sys/directory.h @@ -8,13 +8,17 @@ #include <cstddef> #include "common/common_funcs.h" #include "common/common_types.h" -#include "core/file_sys/filesystem.h" //////////////////////////////////////////////////////////////////////////////////////////////////// // FileSys namespace namespace FileSys { +enum EntryType : u8 { + Directory = 0, + File = 1, +}; + // Structure of a directory entry, from // http://switchbrew.org/index.php?title=Filesystem_services#DirectoryEntry const size_t FILENAME_LENGTH = 0x300; diff --git a/src/core/file_sys/disk_filesystem.cpp b/src/core/file_sys/disk_filesystem.cpp deleted file mode 100644 index d248c2df4..000000000 --- a/src/core/file_sys/disk_filesystem.cpp +++ /dev/null @@ -1,239 +0,0 @@ -// Copyright 2018 yuzu emulator team -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include <cstring> -#include <memory> -#include "common/common_types.h" -#include "common/logging/log.h" -#include "core/file_sys/disk_filesystem.h" -#include "core/file_sys/errors.h" - -namespace FileSys { - -static std::string ModeFlagsToString(Mode mode) { - std::string mode_str; - u32 mode_flags = static_cast<u32>(mode); - - // Calculate the correct open mode for the file. - if ((mode_flags & static_cast<u32>(Mode::Read)) && - (mode_flags & static_cast<u32>(Mode::Write))) { - if (mode_flags & static_cast<u32>(Mode::Append)) - mode_str = "a+"; - else - mode_str = "r+"; - } else { - if (mode_flags & static_cast<u32>(Mode::Read)) - mode_str = "r"; - else if (mode_flags & static_cast<u32>(Mode::Append)) - mode_str = "a"; - else if (mode_flags & static_cast<u32>(Mode::Write)) - mode_str = "w"; - } - - mode_str += "b"; - - return mode_str; -} - -std::string Disk_FileSystem::GetName() const { - return "Disk"; -} - -ResultVal<std::unique_ptr<StorageBackend>> Disk_FileSystem::OpenFile(const std::string& path, - Mode mode) const { - - // Calculate the correct open mode for the file. - std::string mode_str = ModeFlagsToString(mode); - - std::string full_path = base_directory + path; - auto file = std::make_shared<FileUtil::IOFile>(full_path, mode_str.c_str()); - - if (!file->IsOpen()) { - return ERROR_PATH_NOT_FOUND; - } - - return MakeResult<std::unique_ptr<StorageBackend>>( - std::make_unique<Disk_Storage>(std::move(file))); -} - -ResultCode Disk_FileSystem::DeleteFile(const std::string& path) const { - std::string full_path = base_directory + path; - - if (!FileUtil::Exists(full_path)) { - return ERROR_PATH_NOT_FOUND; - } - - FileUtil::Delete(full_path); - - return RESULT_SUCCESS; -} - -ResultCode Disk_FileSystem::RenameFile(const std::string& src_path, - const std::string& dest_path) const { - const std::string full_src_path = base_directory + src_path; - const std::string full_dest_path = base_directory + dest_path; - - if (!FileUtil::Exists(full_src_path)) { - return ERROR_PATH_NOT_FOUND; - } - // TODO(wwylele): Use correct error code - return FileUtil::Rename(full_src_path, full_dest_path) ? RESULT_SUCCESS : ResultCode(-1); -} - -ResultCode Disk_FileSystem::DeleteDirectory(const Path& path) const { - LOG_WARNING(Service_FS, "(STUBBED) called"); - // TODO(wwylele): Use correct error code - return ResultCode(-1); -} - -ResultCode Disk_FileSystem::DeleteDirectoryRecursively(const Path& path) const { - LOG_WARNING(Service_FS, "(STUBBED) called"); - // TODO(wwylele): Use correct error code - return ResultCode(-1); -} - -ResultCode Disk_FileSystem::CreateFile(const std::string& path, u64 size) const { - LOG_WARNING(Service_FS, "(STUBBED) called"); - - std::string full_path = base_directory + path; - if (size == 0) { - FileUtil::CreateEmptyFile(full_path); - return RESULT_SUCCESS; - } - - FileUtil::IOFile file(full_path, "wb"); - // Creates a sparse file (or a normal file on filesystems without the concept of sparse files) - // We do this by seeking to the right size, then writing a single null byte. - if (file.Seek(size - 1, SEEK_SET) && file.WriteBytes("", 1) == 1) { - return RESULT_SUCCESS; - } - - LOG_ERROR(Service_FS, "Too large file"); - // TODO(Subv): Find out the correct error code - return ResultCode(-1); -} - -ResultCode Disk_FileSystem::CreateDirectory(const std::string& path) const { - // TODO(Subv): Perform path validation to prevent escaping the emulator sandbox. - std::string full_path = base_directory + path; - - if (FileUtil::CreateDir(full_path)) { - return RESULT_SUCCESS; - } - - LOG_CRITICAL(Service_FS, "(unreachable) Unknown error creating {}", full_path); - // TODO(wwylele): Use correct error code - return ResultCode(-1); -} - -ResultCode Disk_FileSystem::RenameDirectory(const Path& src_path, const Path& dest_path) const { - LOG_WARNING(Service_FS, "(STUBBED) called"); - // TODO(wwylele): Use correct error code - return ResultCode(-1); -} - -ResultVal<std::unique_ptr<DirectoryBackend>> Disk_FileSystem::OpenDirectory( - const std::string& path) const { - - std::string full_path = base_directory + path; - - if (!FileUtil::IsDirectory(full_path)) { - // TODO(Subv): Find the correct error code for this. - return ResultCode(-1); - } - - auto directory = std::make_unique<Disk_Directory>(full_path); - return MakeResult<std::unique_ptr<DirectoryBackend>>(std::move(directory)); -} - -u64 Disk_FileSystem::GetFreeSpaceSize() const { - LOG_WARNING(Service_FS, "(STUBBED) called"); - return 0; -} - -ResultVal<FileSys::EntryType> Disk_FileSystem::GetEntryType(const std::string& path) const { - std::string full_path = base_directory + path; - if (!FileUtil::Exists(full_path)) { - return ERROR_PATH_NOT_FOUND; - } - - if (FileUtil::IsDirectory(full_path)) - return MakeResult(EntryType::Directory); - - return MakeResult(EntryType::File); -} - -ResultVal<size_t> Disk_Storage::Read(const u64 offset, const size_t length, u8* buffer) const { - LOG_TRACE(Service_FS, "called offset={}, length={}", offset, length); - file->Seek(offset, SEEK_SET); - return MakeResult<size_t>(file->ReadBytes(buffer, length)); -} - -ResultVal<size_t> Disk_Storage::Write(const u64 offset, const size_t length, const bool flush, - const u8* buffer) const { - LOG_WARNING(Service_FS, "(STUBBED) called"); - file->Seek(offset, SEEK_SET); - size_t written = file->WriteBytes(buffer, length); - if (flush) { - file->Flush(); - } - return MakeResult<size_t>(written); -} - -u64 Disk_Storage::GetSize() const { - return file->GetSize(); -} - -bool Disk_Storage::SetSize(const u64 size) const { - file->Resize(size); - file->Flush(); - return true; -} - -Disk_Directory::Disk_Directory(const std::string& path) { - unsigned size = FileUtil::ScanDirectoryTree(path, directory); - directory.size = size; - directory.isDirectory = true; - children_iterator = directory.children.begin(); -} - -u64 Disk_Directory::Read(const u64 count, Entry* entries) { - u64 entries_read = 0; - - while (entries_read < count && children_iterator != directory.children.cend()) { - const FileUtil::FSTEntry& file = *children_iterator; - const std::string& filename = file.virtualName; - Entry& entry = entries[entries_read]; - - LOG_TRACE(Service_FS, "File {}: size={} dir={}", filename, file.size, file.isDirectory); - - // TODO(Link Mauve): use a proper conversion to UTF-16. - for (size_t j = 0; j < FILENAME_LENGTH; ++j) { - entry.filename[j] = filename[j]; - if (!filename[j]) - break; - } - - if (file.isDirectory) { - entry.file_size = 0; - entry.type = EntryType::Directory; - } else { - entry.file_size = file.size; - entry.type = EntryType::File; - } - - ++entries_read; - ++children_iterator; - } - return entries_read; -} - -u64 Disk_Directory::GetEntryCount() const { - // We convert the children iterator into a const_iterator to allow template argument deduction - // in std::distance. - std::vector<FileUtil::FSTEntry>::const_iterator current = children_iterator; - return std::distance(current, directory.children.end()); -} - -} // namespace FileSys diff --git a/src/core/file_sys/disk_filesystem.h b/src/core/file_sys/disk_filesystem.h deleted file mode 100644 index 591e39fda..000000000 --- a/src/core/file_sys/disk_filesystem.h +++ /dev/null @@ -1,84 +0,0 @@ -// Copyright 2018 yuzu emulator team -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#pragma once - -#include <cstddef> -#include <memory> -#include <string> -#include "common/common_types.h" -#include "common/file_util.h" -#include "core/file_sys/directory.h" -#include "core/file_sys/filesystem.h" -#include "core/file_sys/storage.h" -#include "core/hle/result.h" - -namespace FileSys { - -class Disk_FileSystem : public FileSystemBackend { -public: - explicit Disk_FileSystem(std::string base_directory) - : base_directory(std::move(base_directory)) {} - - std::string GetName() const override; - - ResultVal<std::unique_ptr<StorageBackend>> OpenFile(const std::string& path, - Mode mode) const override; - ResultCode DeleteFile(const std::string& path) const override; - ResultCode RenameFile(const std::string& src_path, const std::string& dest_path) const override; - ResultCode DeleteDirectory(const Path& path) const override; - ResultCode DeleteDirectoryRecursively(const Path& path) const override; - ResultCode CreateFile(const std::string& path, u64 size) const override; - ResultCode CreateDirectory(const std::string& path) const override; - ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const override; - ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory( - const std::string& path) const override; - u64 GetFreeSpaceSize() const override; - ResultVal<EntryType> GetEntryType(const std::string& path) const override; - -protected: - std::string base_directory; -}; - -class Disk_Storage : public StorageBackend { -public: - explicit Disk_Storage(std::shared_ptr<FileUtil::IOFile> file) : file(std::move(file)) {} - - ResultVal<size_t> Read(u64 offset, size_t length, u8* buffer) const override; - ResultVal<size_t> Write(u64 offset, size_t length, bool flush, const u8* buffer) const override; - u64 GetSize() const override; - bool SetSize(u64 size) const override; - bool Close() const override { - return false; - } - void Flush() const override {} - -private: - std::shared_ptr<FileUtil::IOFile> file; -}; - -class Disk_Directory : public DirectoryBackend { -public: - explicit Disk_Directory(const std::string& path); - - ~Disk_Directory() override { - Close(); - } - - u64 Read(const u64 count, Entry* entries) override; - u64 GetEntryCount() const override; - - bool Close() const override { - return true; - } - -protected: - FileUtil::FSTEntry directory; - - // We need to remember the last entry we returned, so a subsequent call to Read will continue - // from the next one. This iterator will always point to the next unread entry. - std::vector<FileUtil::FSTEntry>::iterator children_iterator; -}; - -} // namespace FileSys diff --git a/src/core/file_sys/errors.h b/src/core/file_sys/errors.h index 1f3b8fa84..a152dbd33 100644 --- a/src/core/file_sys/errors.h +++ b/src/core/file_sys/errors.h @@ -11,7 +11,7 @@ namespace FileSys { namespace ErrCodes { enum { NotFound = 1, - SaveDataNotFound = 1002, + TitleNotFound = 1002, SdCardNotFound = 2001, RomFSNotFound = 2520, }; diff --git a/src/core/file_sys/filesystem.cpp b/src/core/file_sys/filesystem.cpp deleted file mode 100644 index 82fdb3c46..000000000 --- a/src/core/file_sys/filesystem.cpp +++ /dev/null @@ -1,122 +0,0 @@ -// Copyright 2018 yuzu emulator team -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include <cstddef> -#include <iomanip> -#include <sstream> -#include "common/logging/log.h" -#include "common/string_util.h" -#include "core/file_sys/filesystem.h" -#include "core/memory.h" - -namespace FileSys { - -Path::Path(LowPathType type, u32 size, u32 pointer) : type(type) { - switch (type) { - case Binary: { - binary.resize(size); - Memory::ReadBlock(pointer, binary.data(), binary.size()); - break; - } - - case Char: { - string.resize(size - 1); // Data is always null-terminated. - Memory::ReadBlock(pointer, &string[0], string.size()); - break; - } - - case Wchar: { - u16str.resize(size / 2 - 1); // Data is always null-terminated. - Memory::ReadBlock(pointer, &u16str[0], u16str.size() * sizeof(char16_t)); - break; - } - - default: - break; - } -} - -std::string Path::DebugStr() const { - switch (GetType()) { - case Invalid: - default: - return "[Invalid]"; - case Empty: - return "[Empty]"; - case Binary: { - std::stringstream res; - res << "[Binary: "; - for (unsigned byte : binary) - res << std::hex << std::setw(2) << std::setfill('0') << byte; - res << ']'; - return res.str(); - } - case Char: - return "[Char: " + AsString() + ']'; - case Wchar: - return "[Wchar: " + AsString() + ']'; - } -} - -std::string Path::AsString() const { - switch (GetType()) { - case Char: - return string; - case Wchar: - return Common::UTF16ToUTF8(u16str); - case Empty: - return {}; - case Invalid: - case Binary: - default: - // TODO(yuriks): Add assert - LOG_ERROR(Service_FS, "LowPathType cannot be converted to string!"); - return {}; - } -} - -std::u16string Path::AsU16Str() const { - switch (GetType()) { - case Char: - return Common::UTF8ToUTF16(string); - case Wchar: - return u16str; - case Empty: - return {}; - case Invalid: - case Binary: - // TODO(yuriks): Add assert - LOG_ERROR(Service_FS, "LowPathType cannot be converted to u16string!"); - return {}; - } - - UNREACHABLE(); -} - -std::vector<u8> Path::AsBinary() const { - switch (GetType()) { - case Binary: - return binary; - case Char: - return std::vector<u8>(string.begin(), string.end()); - case Wchar: { - // use two u8 for each character of u16str - std::vector<u8> to_return(u16str.size() * 2); - for (size_t i = 0; i < u16str.size(); ++i) { - u16 tmp_char = u16str.at(i); - to_return[i * 2] = (tmp_char & 0xFF00) >> 8; - to_return[i * 2 + 1] = (tmp_char & 0x00FF); - } - return to_return; - } - case Empty: - return {}; - case Invalid: - default: - // TODO(yuriks): Add assert - LOG_ERROR(Service_FS, "LowPathType cannot be converted to binary!"); - return {}; - } -} -} // namespace FileSys diff --git a/src/core/file_sys/filesystem.h b/src/core/file_sys/filesystem.h deleted file mode 100644 index 1a32a373b..000000000 --- a/src/core/file_sys/filesystem.h +++ /dev/null @@ -1,170 +0,0 @@ -// Copyright 2018 yuzu emulator team -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#pragma once - -#include <memory> -#include <string> -#include <utility> -#include <vector> -#include "common/bit_field.h" -#include "common/common_types.h" -#include "common/swap.h" -#include "core/hle/result.h" - -namespace FileSys { - -class StorageBackend; -class DirectoryBackend; - -// Path string type -enum LowPathType : u32 { - Invalid = 0, - Empty = 1, - Binary = 2, - Char = 3, - Wchar = 4, -}; - -enum EntryType : u8 { - Directory = 0, - File = 1, -}; - -enum class Mode : u32 { - Read = 1, - Write = 2, - Append = 4, -}; - -class Path { -public: - Path() : type(Invalid) {} - Path(const char* path) : type(Char), string(path) {} - Path(std::vector<u8> binary_data) : type(Binary), binary(std::move(binary_data)) {} - Path(LowPathType type, u32 size, u32 pointer); - - LowPathType GetType() const { - return type; - } - - /** - * Gets the string representation of the path for debugging - * @return String representation of the path for debugging - */ - std::string DebugStr() const; - - std::string AsString() const; - std::u16string AsU16Str() const; - std::vector<u8> AsBinary() const; - -private: - LowPathType type; - std::vector<u8> binary; - std::string string; - std::u16string u16str; -}; - -/// Parameters of the archive, as specified in the Create or Format call. -struct ArchiveFormatInfo { - u32_le total_size; ///< The pre-defined size of the archive. - u32_le number_directories; ///< The pre-defined number of directories in the archive. - u32_le number_files; ///< The pre-defined number of files in the archive. - u8 duplicate_data; ///< Whether the archive should duplicate the data. -}; -static_assert(std::is_pod<ArchiveFormatInfo>::value, "ArchiveFormatInfo is not POD"); - -class FileSystemBackend : NonCopyable { -public: - virtual ~FileSystemBackend() {} - - /** - * Get a descriptive name for the archive (e.g. "RomFS", "SaveData", etc.) - */ - virtual std::string GetName() const = 0; - - /** - * Create a file specified by its path - * @param path Path relative to the Archive - * @param size The size of the new file, filled with zeroes - * @return Result of the operation - */ - virtual ResultCode CreateFile(const std::string& path, u64 size) const = 0; - - /** - * Delete a file specified by its path - * @param path Path relative to the archive - * @return Result of the operation - */ - virtual ResultCode DeleteFile(const std::string& path) const = 0; - - /** - * Create a directory specified by its path - * @param path Path relative to the archive - * @return Result of the operation - */ - virtual ResultCode CreateDirectory(const std::string& path) const = 0; - - /** - * Delete a directory specified by its path - * @param path Path relative to the archive - * @return Result of the operation - */ - virtual ResultCode DeleteDirectory(const Path& path) const = 0; - - /** - * Delete a directory specified by its path and anything under it - * @param path Path relative to the archive - * @return Result of the operation - */ - virtual ResultCode DeleteDirectoryRecursively(const Path& path) const = 0; - - /** - * Rename a File specified by its path - * @param src_path Source path relative to the archive - * @param dest_path Destination path relative to the archive - * @return Result of the operation - */ - virtual ResultCode RenameFile(const std::string& src_path, - const std::string& dest_path) const = 0; - - /** - * Rename a Directory specified by its path - * @param src_path Source path relative to the archive - * @param dest_path Destination path relative to the archive - * @return Result of the operation - */ - virtual ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const = 0; - - /** - * Open a file specified by its path, using the specified mode - * @param path Path relative to the archive - * @param mode Mode to open the file with - * @return Opened file, or error code - */ - virtual ResultVal<std::unique_ptr<StorageBackend>> OpenFile(const std::string& path, - Mode mode) const = 0; - - /** - * Open a directory specified by its path - * @param path Path relative to the archive - * @return Opened directory, or error code - */ - virtual ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory( - const std::string& path) const = 0; - - /** - * Get the free space - * @return The number of free bytes in the archive - */ - virtual u64 GetFreeSpaceSize() const = 0; - - /** - * Get the type of the specified path - * @return The type of the specified path or error code - */ - virtual ResultVal<EntryType> GetEntryType(const std::string& path) const = 0; -}; - -} // namespace FileSys diff --git a/src/core/file_sys/mode.h b/src/core/file_sys/mode.h new file mode 100644 index 000000000..b4363152a --- /dev/null +++ b/src/core/file_sys/mode.h @@ -0,0 +1,17 @@ +// Copyright 2018 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include "common/common_types.h" + +namespace FileSys { + +enum class Mode : u32 { + Read = 1, + Write = 2, + Append = 4, +}; + +} // namespace FileSys diff --git a/src/core/file_sys/partition_filesystem.cpp b/src/core/file_sys/partition_filesystem.cpp index 46d438aca..15b1fb946 100644 --- a/src/core/file_sys/partition_filesystem.cpp +++ b/src/core/file_sys/partition_filesystem.cpp @@ -6,29 +6,30 @@ #include "common/file_util.h" #include "common/logging/log.h" #include "core/file_sys/partition_filesystem.h" +#include "core/file_sys/vfs_offset.h" #include "core/loader/loader.h" namespace FileSys { -Loader::ResultStatus PartitionFilesystem::Load(const std::string& file_path, size_t offset) { - FileUtil::IOFile file(file_path, "rb"); - if (!file.IsOpen()) - return Loader::ResultStatus::Error; - +PartitionFilesystem::PartitionFilesystem(std::shared_ptr<VfsFile> file) { // At least be as large as the header - if (file.GetSize() < sizeof(Header)) - return Loader::ResultStatus::Error; + if (file->GetSize() < sizeof(Header)) { + status = Loader::ResultStatus::Error; + return; + } - file.Seek(offset, SEEK_SET); // For cartridges, HFSs can get very large, so we need to calculate the size up to // the actual content itself instead of just blindly reading in the entire file. Header pfs_header; - if (!file.ReadBytes(&pfs_header, sizeof(Header))) - return Loader::ResultStatus::Error; + if (sizeof(Header) != file->ReadObject(&pfs_header)) { + status = Loader::ResultStatus::Error; + return; + } if (pfs_header.magic != Common::MakeMagic('H', 'F', 'S', '0') && pfs_header.magic != Common::MakeMagic('P', 'F', 'S', '0')) { - return Loader::ResultStatus::ErrorInvalidFormat; + status = Loader::ResultStatus::ErrorInvalidFormat; + return; } bool is_hfs = pfs_header.magic == Common::MakeMagic('H', 'F', 'S', '0'); @@ -38,99 +39,86 @@ Loader::ResultStatus PartitionFilesystem::Load(const std::string& file_path, siz sizeof(Header) + (pfs_header.num_entries * entry_size) + pfs_header.strtab_size; // Actually read in now... - file.Seek(offset, SEEK_SET); - std::vector<u8> file_data(metadata_size); - - if (!file.ReadBytes(file_data.data(), metadata_size)) - return Loader::ResultStatus::Error; + std::vector<u8> file_data = file->ReadBytes(metadata_size); - Loader::ResultStatus result = Load(file_data); - if (result != Loader::ResultStatus::Success) - LOG_ERROR(Service_FS, "Failed to load PFS from file {}!", file_path); - - return result; -} + if (file_data.size() != metadata_size) { + status = Loader::ResultStatus::Error; + return; + } -Loader::ResultStatus PartitionFilesystem::Load(const std::vector<u8>& file_data, size_t offset) { - size_t total_size = file_data.size() - offset; - if (total_size < sizeof(Header)) - return Loader::ResultStatus::Error; + size_t total_size = file_data.size(); + if (total_size < sizeof(Header)) { + status = Loader::ResultStatus::Error; + return; + } - memcpy(&pfs_header, &file_data[offset], sizeof(Header)); + memcpy(&pfs_header, file_data.data(), sizeof(Header)); if (pfs_header.magic != Common::MakeMagic('H', 'F', 'S', '0') && pfs_header.magic != Common::MakeMagic('P', 'F', 'S', '0')) { - return Loader::ResultStatus::ErrorInvalidFormat; + status = Loader::ResultStatus::ErrorInvalidFormat; + return; } is_hfs = pfs_header.magic == Common::MakeMagic('H', 'F', 'S', '0'); - size_t entries_offset = offset + sizeof(Header); - size_t entry_size = is_hfs ? sizeof(HFSEntry) : sizeof(PFSEntry); + size_t entries_offset = sizeof(Header); size_t strtab_offset = entries_offset + (pfs_header.num_entries * entry_size); + content_offset = strtab_offset + pfs_header.strtab_size; for (u16 i = 0; i < pfs_header.num_entries; i++) { - FileEntry entry; + FSEntry entry; - memcpy(&entry.fs_entry, &file_data[entries_offset + (i * entry_size)], sizeof(FSEntry)); - entry.name = std::string(reinterpret_cast<const char*>( - &file_data[strtab_offset + entry.fs_entry.strtab_offset])); - pfs_entries.push_back(std::move(entry)); - } + memcpy(&entry, &file_data[entries_offset + (i * entry_size)], sizeof(FSEntry)); + std::string name( + reinterpret_cast<const char*>(&file_data[strtab_offset + entry.strtab_offset])); - content_offset = strtab_offset + pfs_header.strtab_size; + pfs_files.emplace_back( + std::make_shared<OffsetVfsFile>(file, entry.size, content_offset + entry.offset, name)); + } - return Loader::ResultStatus::Success; + status = Loader::ResultStatus::Success; } -u32 PartitionFilesystem::GetNumEntries() const { - return pfs_header.num_entries; +Loader::ResultStatus PartitionFilesystem::GetStatus() const { + return status; } -u64 PartitionFilesystem::GetEntryOffset(u32 index) const { - if (index > GetNumEntries()) - return 0; - - return content_offset + pfs_entries[index].fs_entry.offset; +std::vector<std::shared_ptr<VfsFile>> PartitionFilesystem::GetFiles() const { + return pfs_files; } -u64 PartitionFilesystem::GetEntrySize(u32 index) const { - if (index > GetNumEntries()) - return 0; - - return pfs_entries[index].fs_entry.size; +std::vector<std::shared_ptr<VfsDirectory>> PartitionFilesystem::GetSubdirectories() const { + return {}; } -std::string PartitionFilesystem::GetEntryName(u32 index) const { - if (index > GetNumEntries()) - return ""; +std::string PartitionFilesystem::GetName() const { + return is_hfs ? "HFS0" : "PFS0"; +} - return pfs_entries[index].name; +std::shared_ptr<VfsDirectory> PartitionFilesystem::GetParentDirectory() const { + // TODO(DarkLordZach): Add support for nested containers. + return nullptr; } -u64 PartitionFilesystem::GetFileOffset(const std::string& name) const { +void PartitionFilesystem::PrintDebugInfo() const { + LOG_DEBUG(Service_FS, "Magic: {:.4}", pfs_header.magic); + LOG_DEBUG(Service_FS, "Files: {}", pfs_header.num_entries); for (u32 i = 0; i < pfs_header.num_entries; i++) { - if (pfs_entries[i].name == name) - return content_offset + pfs_entries[i].fs_entry.offset; + LOG_DEBUG(Service_FS, " > File {}: {} (0x{:X} bytes, at 0x{:X})", i, + pfs_files[i]->GetName(), pfs_files[i]->GetSize(), + dynamic_cast<OffsetVfsFile*>(pfs_files[i].get())->GetOffset()); } - - return 0; } -u64 PartitionFilesystem::GetFileSize(const std::string& name) const { - for (u32 i = 0; i < pfs_header.num_entries; i++) { - if (pfs_entries[i].name == name) - return pfs_entries[i].fs_entry.size; - } +bool PartitionFilesystem::ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) { + auto iter = std::find(pfs_files.begin(), pfs_files.end(), file); + if (iter == pfs_files.end()) + return false; - return 0; -} + pfs_files[iter - pfs_files.begin()] = pfs_files.back(); + pfs_files.pop_back(); -void PartitionFilesystem::Print() const { - LOG_DEBUG(Service_FS, "Magic: {}", pfs_header.magic); - LOG_DEBUG(Service_FS, "Files: {}", pfs_header.num_entries); - for (u32 i = 0; i < pfs_header.num_entries; i++) { - LOG_DEBUG(Service_FS, " > File {}: {} (0x{:X} bytes, at 0x{:X})", i, - pfs_entries[i].name.c_str(), pfs_entries[i].fs_entry.size, - GetFileOffset(pfs_entries[i].name)); - } + pfs_dirs.emplace_back(dir); + + return true; } } // namespace FileSys diff --git a/src/core/file_sys/partition_filesystem.h b/src/core/file_sys/partition_filesystem.h index 9c5810cf1..9656b40bf 100644 --- a/src/core/file_sys/partition_filesystem.h +++ b/src/core/file_sys/partition_filesystem.h @@ -10,6 +10,7 @@ #include "common/common_funcs.h" #include "common/common_types.h" #include "common/swap.h" +#include "core/file_sys/vfs.h" namespace Loader { enum class ResultStatus; @@ -21,19 +22,19 @@ namespace FileSys { * Helper which implements an interface to parse PFS/HFS filesystems. * Data can either be loaded from a file path or data with an offset into it. */ -class PartitionFilesystem { +class PartitionFilesystem : public ReadOnlyVfsDirectory { public: - Loader::ResultStatus Load(const std::string& file_path, size_t offset = 0); - Loader::ResultStatus Load(const std::vector<u8>& file_data, size_t offset = 0); + explicit PartitionFilesystem(std::shared_ptr<VfsFile> file); + Loader::ResultStatus GetStatus() const; - u32 GetNumEntries() const; - u64 GetEntryOffset(u32 index) const; - u64 GetEntrySize(u32 index) const; - std::string GetEntryName(u32 index) const; - u64 GetFileOffset(const std::string& name) const; - u64 GetFileSize(const std::string& name) const; + std::vector<std::shared_ptr<VfsFile>> GetFiles() const override; + std::vector<std::shared_ptr<VfsDirectory>> GetSubdirectories() const override; + std::string GetName() const override; + std::shared_ptr<VfsDirectory> GetParentDirectory() const override; + void PrintDebugInfo() const; - void Print() const; +protected: + bool ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) override; private: struct Header { @@ -72,16 +73,14 @@ private: #pragma pack(pop) - struct FileEntry { - FSEntry fs_entry; - std::string name; - }; + Loader::ResultStatus status; Header pfs_header; bool is_hfs; size_t content_offset; - std::vector<FileEntry> pfs_entries; + std::vector<VirtualFile> pfs_files; + std::vector<VirtualDir> pfs_dirs; }; } // namespace FileSys diff --git a/src/core/file_sys/path_parser.cpp b/src/core/file_sys/path_parser.cpp deleted file mode 100644 index 5a89b02b8..000000000 --- a/src/core/file_sys/path_parser.cpp +++ /dev/null @@ -1,98 +0,0 @@ -// Copyright 2016 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include <algorithm> -#include <set> -#include "common/file_util.h" -#include "common/string_util.h" -#include "core/file_sys/path_parser.h" - -namespace FileSys { - -PathParser::PathParser(const Path& path) { - if (path.GetType() != LowPathType::Char && path.GetType() != LowPathType::Wchar) { - is_valid = false; - return; - } - - auto path_string = path.AsString(); - if (path_string.size() == 0 || path_string[0] != '/') { - is_valid = false; - return; - } - - // Filter out invalid characters for the host system. - // Although some of these characters are valid on 3DS, they are unlikely to be used by games. - if (std::find_if(path_string.begin(), path_string.end(), [](char c) { - static const std::set<char> invalid_chars{'<', '>', '\\', '|', ':', '\"', '*', '?'}; - return invalid_chars.find(c) != invalid_chars.end(); - }) != path_string.end()) { - is_valid = false; - return; - } - - Common::SplitString(path_string, '/', path_sequence); - - auto begin = path_sequence.begin(); - auto end = path_sequence.end(); - end = std::remove_if(begin, end, [](std::string& str) { return str == "" || str == "."; }); - path_sequence = std::vector<std::string>(begin, end); - - // checks if the path is out of bounds. - int level = 0; - for (auto& node : path_sequence) { - if (node == "..") { - --level; - if (level < 0) { - is_valid = false; - return; - } - } else { - ++level; - } - } - - is_valid = true; - is_root = level == 0; -} - -PathParser::HostStatus PathParser::GetHostStatus(const std::string& mount_point) const { - auto path = mount_point; - if (!FileUtil::IsDirectory(path)) - return InvalidMountPoint; - if (path_sequence.empty()) { - return DirectoryFound; - } - - for (auto iter = path_sequence.begin(); iter != path_sequence.end() - 1; iter++) { - if (path.back() != '/') - path += '/'; - path += *iter; - - if (!FileUtil::Exists(path)) - return PathNotFound; - if (FileUtil::IsDirectory(path)) - continue; - return FileInPath; - } - - path += "/" + path_sequence.back(); - if (!FileUtil::Exists(path)) - return NotFound; - if (FileUtil::IsDirectory(path)) - return DirectoryFound; - return FileFound; -} - -std::string PathParser::BuildHostPath(const std::string& mount_point) const { - std::string path = mount_point; - for (auto& node : path_sequence) { - if (path.back() != '/') - path += '/'; - path += node; - } - return path; -} - -} // namespace FileSys diff --git a/src/core/file_sys/path_parser.h b/src/core/file_sys/path_parser.h deleted file mode 100644 index 184f59d55..000000000 --- a/src/core/file_sys/path_parser.h +++ /dev/null @@ -1,61 +0,0 @@ -// Copyright 2016 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#pragma once - -#include <string> -#include <vector> -#include "core/file_sys/filesystem.h" - -namespace FileSys { - -/** - * A helper class parsing and verifying a string-type Path. - * Every archives with a sub file system should use this class to parse the path argument and check - * the status of the file / directory in question on the host file system. - */ -class PathParser { -public: - explicit PathParser(const Path& path); - - /** - * Checks if the Path is valid. - * This function should be called once a PathParser is constructed. - * A Path is valid if: - * - it is a string path (with type LowPathType::Char or LowPathType::Wchar), - * - it starts with "/" (this seems a hard requirement in real 3DS), - * - it doesn't contain invalid characters, and - * - it doesn't go out of the root directory using "..". - */ - bool IsValid() const { - return is_valid; - } - - /// Checks if the Path represents the root directory. - bool IsRootDirectory() const { - return is_root; - } - - enum HostStatus { - InvalidMountPoint, - PathNotFound, // "/a/b/c" when "a" doesn't exist - FileInPath, // "/a/b/c" when "a" is a file - FileFound, // "/a/b/c" when "c" is a file - DirectoryFound, // "/a/b/c" when "c" is a directory - NotFound // "/a/b/c" when "a/b/" exists but "c" doesn't exist - }; - - /// Checks the status of the specified file / directory by the Path on the host file system. - HostStatus GetHostStatus(const std::string& mount_point) const; - - /// Builds a full path on the host file system. - std::string BuildHostPath(const std::string& mount_point) const; - -private: - std::vector<std::string> path_sequence; - bool is_valid{}; - bool is_root{}; -}; - -} // namespace FileSys diff --git a/src/core/file_sys/program_metadata.cpp b/src/core/file_sys/program_metadata.cpp index 226811115..63d4b6e4f 100644 --- a/src/core/file_sys/program_metadata.cpp +++ b/src/core/file_sys/program_metadata.cpp @@ -9,40 +9,29 @@ namespace FileSys { -Loader::ResultStatus ProgramMetadata::Load(const std::string& file_path) { - FileUtil::IOFile file(file_path, "rb"); - if (!file.IsOpen()) +Loader::ResultStatus ProgramMetadata::Load(VirtualFile file) { + size_t total_size = static_cast<size_t>(file->GetSize()); + if (total_size < sizeof(Header)) return Loader::ResultStatus::Error; - std::vector<u8> file_data(file.GetSize()); - - if (!file.ReadBytes(file_data.data(), file_data.size())) + // TODO(DarkLordZach): Use ReadObject when Header/AcidHeader becomes trivially copyable. + std::vector<u8> npdm_header_data = file->ReadBytes(sizeof(Header)); + if (sizeof(Header) != npdm_header_data.size()) return Loader::ResultStatus::Error; + std::memcpy(&npdm_header, npdm_header_data.data(), sizeof(Header)); - Loader::ResultStatus result = Load(file_data); - if (result != Loader::ResultStatus::Success) - LOG_ERROR(Service_FS, "Failed to load NPDM from file {}!", file_path); - - return result; -} - -Loader::ResultStatus ProgramMetadata::Load(const std::vector<u8> file_data, size_t offset) { - size_t total_size = static_cast<size_t>(file_data.size() - offset); - if (total_size < sizeof(Header)) + std::vector<u8> acid_header_data = file->ReadBytes(sizeof(AcidHeader), npdm_header.acid_offset); + if (sizeof(AcidHeader) != acid_header_data.size()) return Loader::ResultStatus::Error; + std::memcpy(&acid_header, acid_header_data.data(), sizeof(AcidHeader)); - size_t header_offset = offset; - memcpy(&npdm_header, &file_data[offset], sizeof(Header)); - - size_t aci_offset = header_offset + npdm_header.aci_offset; - size_t acid_offset = header_offset + npdm_header.acid_offset; - memcpy(&aci_header, &file_data[aci_offset], sizeof(AciHeader)); - memcpy(&acid_header, &file_data[acid_offset], sizeof(AcidHeader)); + if (sizeof(AciHeader) != file->ReadObject(&aci_header, npdm_header.aci_offset)) + return Loader::ResultStatus::Error; - size_t fac_offset = acid_offset + acid_header.fac_offset; - size_t fah_offset = aci_offset + aci_header.fah_offset; - memcpy(&acid_file_access, &file_data[fac_offset], sizeof(FileAccessControl)); - memcpy(&aci_file_access, &file_data[fah_offset], sizeof(FileAccessHeader)); + if (sizeof(FileAccessControl) != file->ReadObject(&acid_file_access, acid_header.fac_offset)) + return Loader::ResultStatus::Error; + if (sizeof(FileAccessHeader) != file->ReadObject(&aci_file_access, aci_header.fah_offset)) + return Loader::ResultStatus::Error; return Loader::ResultStatus::Success; } diff --git a/src/core/file_sys/program_metadata.h b/src/core/file_sys/program_metadata.h index b80a08485..06a7315db 100644 --- a/src/core/file_sys/program_metadata.h +++ b/src/core/file_sys/program_metadata.h @@ -10,6 +10,7 @@ #include "common/bit_field.h" #include "common/common_types.h" #include "common/swap.h" +#include "partition_filesystem.h" namespace Loader { enum class ResultStatus; @@ -37,8 +38,7 @@ enum class ProgramFilePermission : u64 { */ class ProgramMetadata { public: - Loader::ResultStatus Load(const std::string& file_path); - Loader::ResultStatus Load(const std::vector<u8> file_data, size_t offset = 0); + Loader::ResultStatus Load(VirtualFile file); bool Is64BitProgram() const; ProgramAddressSpaceType GetAddressSpaceType() const; @@ -51,6 +51,7 @@ public: void Print() const; private: + // TODO(DarkLordZach): BitField is not trivially copyable. struct Header { std::array<char, 4> magic; std::array<u8, 8> reserved; @@ -77,6 +78,7 @@ private: static_assert(sizeof(Header) == 0x80, "NPDM header structure size is wrong"); + // TODO(DarkLordZach): BitField is not trivially copyable. struct AcidHeader { std::array<u8, 0x100> signature; std::array<u8, 0x100> nca_modulus; diff --git a/src/core/file_sys/romfs_factory.cpp b/src/core/file_sys/romfs_factory.cpp index 946fc0452..54fbd3267 100644 --- a/src/core/file_sys/romfs_factory.cpp +++ b/src/core/file_sys/romfs_factory.cpp @@ -7,21 +7,19 @@ #include "common/common_types.h" #include "common/logging/log.h" #include "core/file_sys/romfs_factory.h" -#include "core/file_sys/romfs_filesystem.h" namespace FileSys { RomFSFactory::RomFSFactory(Loader::AppLoader& app_loader) { // Load the RomFS from the app - if (Loader::ResultStatus::Success != app_loader.ReadRomFS(romfs_file, data_offset, data_size)) { + if (Loader::ResultStatus::Success != app_loader.ReadRomFS(file)) { LOG_ERROR(Service_FS, "Unable to read RomFS!"); } } -ResultVal<std::unique_ptr<FileSystemBackend>> RomFSFactory::Open(u64 title_id) { +ResultVal<VirtualFile> RomFSFactory::Open(u64 title_id) { // TODO(DarkLordZach): Use title id. - auto archive = std::make_unique<RomFS_FileSystem>(romfs_file, data_offset, data_size); - return MakeResult<std::unique_ptr<FileSystemBackend>>(std::move(archive)); + return MakeResult<VirtualFile>(file); } } // namespace FileSys diff --git a/src/core/file_sys/romfs_factory.h b/src/core/file_sys/romfs_factory.h index c9e20c3ab..c19787cd4 100644 --- a/src/core/file_sys/romfs_factory.h +++ b/src/core/file_sys/romfs_factory.h @@ -5,10 +5,7 @@ #pragma once #include <memory> -#include <string> -#include <vector> #include "common/common_types.h" -#include "core/file_sys/filesystem.h" #include "core/hle/result.h" #include "core/loader/loader.h" @@ -19,12 +16,10 @@ class RomFSFactory { public: explicit RomFSFactory(Loader::AppLoader& app_loader); - ResultVal<std::unique_ptr<FileSystemBackend>> Open(u64 title_id); + ResultVal<VirtualFile> Open(u64 title_id); private: - std::shared_ptr<FileUtil::IOFile> romfs_file; - u64 data_offset; - u64 data_size; + VirtualFile file; }; } // namespace FileSys diff --git a/src/core/file_sys/romfs_filesystem.cpp b/src/core/file_sys/romfs_filesystem.cpp deleted file mode 100644 index 83162622b..000000000 --- a/src/core/file_sys/romfs_filesystem.cpp +++ /dev/null @@ -1,110 +0,0 @@ -// Copyright 2018 yuzu emulator team -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include <cstring> -#include <memory> -#include "common/common_types.h" -#include "common/logging/log.h" -#include "core/file_sys/romfs_filesystem.h" - -namespace FileSys { - -std::string RomFS_FileSystem::GetName() const { - return "RomFS"; -} - -ResultVal<std::unique_ptr<StorageBackend>> RomFS_FileSystem::OpenFile(const std::string& path, - Mode mode) const { - return MakeResult<std::unique_ptr<StorageBackend>>( - std::make_unique<RomFS_Storage>(romfs_file, data_offset, data_size)); -} - -ResultCode RomFS_FileSystem::DeleteFile(const std::string& path) const { - LOG_CRITICAL(Service_FS, "Attempted to delete a file from an ROMFS archive ({}).", GetName()); - // TODO(bunnei): Use correct error code - return ResultCode(-1); -} - -ResultCode RomFS_FileSystem::RenameFile(const std::string& src_path, - const std::string& dest_path) const { - LOG_CRITICAL(Service_FS, "Attempted to rename a file within an ROMFS archive ({}).", GetName()); - // TODO(wwylele): Use correct error code - return ResultCode(-1); -} - -ResultCode RomFS_FileSystem::DeleteDirectory(const Path& path) const { - LOG_CRITICAL(Service_FS, "Attempted to delete a directory from an ROMFS archive ({}).", - GetName()); - // TODO(wwylele): Use correct error code - return ResultCode(-1); -} - -ResultCode RomFS_FileSystem::DeleteDirectoryRecursively(const Path& path) const { - LOG_CRITICAL(Service_FS, "Attempted to delete a directory from an ROMFS archive ({}).", - GetName()); - // TODO(wwylele): Use correct error code - return ResultCode(-1); -} - -ResultCode RomFS_FileSystem::CreateFile(const std::string& path, u64 size) const { - LOG_CRITICAL(Service_FS, "Attempted to create a file in an ROMFS archive ({}).", GetName()); - // TODO(bunnei): Use correct error code - return ResultCode(-1); -} - -ResultCode RomFS_FileSystem::CreateDirectory(const std::string& path) const { - LOG_CRITICAL(Service_FS, "Attempted to create a directory in an ROMFS archive ({}).", - GetName()); - // TODO(wwylele): Use correct error code - return ResultCode(-1); -} - -ResultCode RomFS_FileSystem::RenameDirectory(const Path& src_path, const Path& dest_path) const { - LOG_CRITICAL(Service_FS, "Attempted to rename a file within an ROMFS archive ({}).", GetName()); - // TODO(wwylele): Use correct error code - return ResultCode(-1); -} - -ResultVal<std::unique_ptr<DirectoryBackend>> RomFS_FileSystem::OpenDirectory( - const std::string& path) const { - LOG_WARNING(Service_FS, "Opening Directory in a ROMFS archive"); - return MakeResult<std::unique_ptr<DirectoryBackend>>(std::make_unique<ROMFSDirectory>()); -} - -u64 RomFS_FileSystem::GetFreeSpaceSize() const { - LOG_WARNING(Service_FS, "Attempted to get the free space in an ROMFS archive"); - return 0; -} - -ResultVal<FileSys::EntryType> RomFS_FileSystem::GetEntryType(const std::string& path) const { - LOG_CRITICAL(Service_FS, "Called within an ROMFS archive (path {}).", path); - // TODO(wwylele): Use correct error code - return ResultCode(-1); -} - -ResultVal<size_t> RomFS_Storage::Read(const u64 offset, const size_t length, u8* buffer) const { - LOG_TRACE(Service_FS, "called offset={}, length={}", offset, length); - romfs_file->Seek(data_offset + offset, SEEK_SET); - size_t read_length = (size_t)std::min((u64)length, data_size - offset); - - return MakeResult<size_t>(romfs_file->ReadBytes(buffer, read_length)); -} - -ResultVal<size_t> RomFS_Storage::Write(const u64 offset, const size_t length, const bool flush, - const u8* buffer) const { - LOG_ERROR(Service_FS, "Attempted to write to ROMFS file"); - // TODO(Subv): Find error code - return MakeResult<size_t>(0); -} - -u64 RomFS_Storage::GetSize() const { - return data_size; -} - -bool RomFS_Storage::SetSize(const u64 size) const { - LOG_ERROR(Service_FS, "Attempted to set the size of an ROMFS file"); - return false; -} - -} // namespace FileSys diff --git a/src/core/file_sys/romfs_filesystem.h b/src/core/file_sys/romfs_filesystem.h deleted file mode 100644 index ba9d85823..000000000 --- a/src/core/file_sys/romfs_filesystem.h +++ /dev/null @@ -1,85 +0,0 @@ -// Copyright 2018 yuzu emulator team -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#pragma once - -#include <cstddef> -#include <memory> -#include <string> -#include <vector> -#include "common/common_types.h" -#include "common/file_util.h" -#include "core/file_sys/directory.h" -#include "core/file_sys/filesystem.h" -#include "core/file_sys/storage.h" -#include "core/hle/result.h" - -namespace FileSys { - -/** - * Helper which implements an interface to deal with Switch .istorage ROMFS images used in some - * archives This should be subclassed by concrete archive types, which will provide the input data - * (load the raw ROMFS archive) and override any required methods - */ -class RomFS_FileSystem : public FileSystemBackend { -public: - RomFS_FileSystem(std::shared_ptr<FileUtil::IOFile> file, u64 offset, u64 size) - : romfs_file(file), data_offset(offset), data_size(size) {} - - std::string GetName() const override; - - ResultVal<std::unique_ptr<StorageBackend>> OpenFile(const std::string& path, - Mode mode) const override; - ResultCode DeleteFile(const std::string& path) const override; - ResultCode RenameFile(const std::string& src_path, const std::string& dest_path) const override; - ResultCode DeleteDirectory(const Path& path) const override; - ResultCode DeleteDirectoryRecursively(const Path& path) const override; - ResultCode CreateFile(const std::string& path, u64 size) const override; - ResultCode CreateDirectory(const std::string& path) const override; - ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const override; - ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory( - const std::string& path) const override; - u64 GetFreeSpaceSize() const override; - ResultVal<EntryType> GetEntryType(const std::string& path) const override; - -protected: - std::shared_ptr<FileUtil::IOFile> romfs_file; - u64 data_offset; - u64 data_size; -}; - -class RomFS_Storage : public StorageBackend { -public: - RomFS_Storage(std::shared_ptr<FileUtil::IOFile> file, u64 offset, u64 size) - : romfs_file(file), data_offset(offset), data_size(size) {} - - ResultVal<size_t> Read(u64 offset, size_t length, u8* buffer) const override; - ResultVal<size_t> Write(u64 offset, size_t length, bool flush, const u8* buffer) const override; - u64 GetSize() const override; - bool SetSize(u64 size) const override; - bool Close() const override { - return false; - } - void Flush() const override {} - -private: - std::shared_ptr<FileUtil::IOFile> romfs_file; - u64 data_offset; - u64 data_size; -}; - -class ROMFSDirectory : public DirectoryBackend { -public: - u64 Read(const u64 count, Entry* entries) override { - return 0; - } - u64 GetEntryCount() const override { - return 0; - } - bool Close() const override { - return false; - } -}; - -} // namespace FileSys diff --git a/src/core/file_sys/savedata_factory.cpp b/src/core/file_sys/savedata_factory.cpp index 3ad37b28c..6a53b2b10 100644 --- a/src/core/file_sys/savedata_factory.cpp +++ b/src/core/file_sys/savedata_factory.cpp @@ -6,7 +6,6 @@ #include "common/common_types.h" #include "common/logging/log.h" #include "core/core.h" -#include "core/file_sys/disk_filesystem.h" #include "core/file_sys/savedata_factory.h" #include "core/hle/kernel/process.h" @@ -17,11 +16,9 @@ std::string SaveDataDescriptor::DebugInfo() { static_cast<u8>(type), title_id, user_id[1], user_id[0], save_id); } -SaveDataFactory::SaveDataFactory(std::string nand_directory) - : nand_directory(std::move(nand_directory)) {} +SaveDataFactory::SaveDataFactory(VirtualDir save_directory) : dir(std::move(save_directory)) {} -ResultVal<std::unique_ptr<FileSystemBackend>> SaveDataFactory::Open(SaveDataSpaceId space, - SaveDataDescriptor meta) { +ResultVal<VirtualDir> SaveDataFactory::Open(SaveDataSpaceId space, SaveDataDescriptor meta) { if (meta.type == SaveDataType::SystemSaveData || meta.type == SaveDataType::SaveData) { if (meta.zero_1 != 0) { LOG_WARNING(Service_FS, @@ -56,28 +53,23 @@ ResultVal<std::unique_ptr<FileSystemBackend>> SaveDataFactory::Open(SaveDataSpac // TODO(DarkLordZach): Try to not create when opening, there are dedicated create save methods. // But, user_ids don't match so this works for now. - if (!FileUtil::Exists(save_directory)) { + auto out = dir->GetDirectoryRelative(save_directory); + + if (out == nullptr) { // TODO(bunnei): This is a work-around to always create a save data directory if it does not // already exist. This is a hack, as we do not understand yet how this works on hardware. // Without a save data directory, many games will assert on boot. This should not have any // bad side-effects. - FileUtil::CreateFullPath(save_directory); - } - - // TODO(DarkLordZach): For some reason, CreateFullPath doesn't create the last bit. Should be - // fixed with VFS. - if (!FileUtil::IsDirectory(save_directory)) { - FileUtil::CreateDir(save_directory); + out = dir->CreateDirectoryRelative(save_directory); } // Return an error if the save data doesn't actually exist. - if (!FileUtil::IsDirectory(save_directory)) { + if (out == nullptr) { // TODO(Subv): Find out correct error code. return ResultCode(-1); } - auto archive = std::make_unique<Disk_FileSystem>(save_directory); - return MakeResult<std::unique_ptr<FileSystemBackend>>(std::move(archive)); + return MakeResult<VirtualDir>(std::move(out)); } std::string SaveDataFactory::GetFullPath(SaveDataSpaceId space, SaveDataType type, u64 title_id, @@ -87,14 +79,14 @@ std::string SaveDataFactory::GetFullPath(SaveDataSpaceId space, SaveDataType typ if (type == SaveDataType::SaveData && title_id == 0) title_id = Core::CurrentProcess()->program_id; - std::string prefix; + std::string out; switch (space) { case SaveDataSpaceId::NandSystem: - prefix = nand_directory + "system/save/"; + out = "/system/save/"; break; case SaveDataSpaceId::NandUser: - prefix = nand_directory + "user/save/"; + out = "/user/save/"; break; default: ASSERT_MSG(false, "Unrecognized SaveDataSpaceId: {:02X}", static_cast<u8>(space)); @@ -102,9 +94,9 @@ std::string SaveDataFactory::GetFullPath(SaveDataSpaceId space, SaveDataType typ switch (type) { case SaveDataType::SystemSaveData: - return fmt::format("{}{:016X}/{:016X}{:016X}", prefix, save_id, user_id[1], user_id[0]); + return fmt::format("{}{:016X}/{:016X}{:016X}", out, save_id, user_id[1], user_id[0]); case SaveDataType::SaveData: - return fmt::format("{}{:016X}/{:016X}{:016X}/{:016X}", prefix, 0, user_id[1], user_id[0], + return fmt::format("{}{:016X}/{:016X}{:016X}/{:016X}", out, 0, user_id[1], user_id[0], title_id); default: ASSERT_MSG(false, "Unrecognized SaveDataType: {:02X}", static_cast<u8>(type)); diff --git a/src/core/file_sys/savedata_factory.h b/src/core/file_sys/savedata_factory.h index b96721ac0..53c69876f 100644 --- a/src/core/file_sys/savedata_factory.h +++ b/src/core/file_sys/savedata_factory.h @@ -7,7 +7,6 @@ #include <memory> #include <string> #include "common/common_types.h" -#include "core/file_sys/filesystem.h" #include "core/hle/result.h" namespace FileSys { @@ -45,14 +44,12 @@ static_assert(sizeof(SaveDataDescriptor) == 0x40, "SaveDataDescriptor has incorr /// File system interface to the SaveData archive class SaveDataFactory { public: - explicit SaveDataFactory(std::string nand_directory); + explicit SaveDataFactory(VirtualDir dir); - ResultVal<std::unique_ptr<FileSystemBackend>> Open(SaveDataSpaceId space, - SaveDataDescriptor meta); + ResultVal<VirtualDir> Open(SaveDataSpaceId space, SaveDataDescriptor meta); private: - std::string nand_directory; - std::string sd_directory; + VirtualDir dir; std::string GetFullPath(SaveDataSpaceId space, SaveDataType type, u64 title_id, u128 user_id, u64 save_id) const; diff --git a/src/core/file_sys/sdmc_factory.cpp b/src/core/file_sys/sdmc_factory.cpp index ac6f2f971..c1edfcef3 100644 --- a/src/core/file_sys/sdmc_factory.cpp +++ b/src/core/file_sys/sdmc_factory.cpp @@ -3,25 +3,15 @@ // Refer to the license.txt file included. #include <memory> -#include "common/common_types.h" -#include "common/logging/log.h" -#include "common/string_util.h" #include "core/core.h" -#include "core/file_sys/disk_filesystem.h" #include "core/file_sys/sdmc_factory.h" namespace FileSys { -SDMCFactory::SDMCFactory(std::string sd_directory) : sd_directory(std::move(sd_directory)) {} +SDMCFactory::SDMCFactory(VirtualDir dir) : dir(std::move(dir)) {} -ResultVal<std::unique_ptr<FileSystemBackend>> SDMCFactory::Open() { - // Create the SD Card directory if it doesn't already exist. - if (!FileUtil::IsDirectory(sd_directory)) { - FileUtil::CreateFullPath(sd_directory); - } - - auto archive = std::make_unique<Disk_FileSystem>(sd_directory); - return MakeResult<std::unique_ptr<FileSystemBackend>>(std::move(archive)); +ResultVal<VirtualDir> SDMCFactory::Open() { + return MakeResult<VirtualDir>(dir); } } // namespace FileSys diff --git a/src/core/file_sys/sdmc_factory.h b/src/core/file_sys/sdmc_factory.h index 09bec7fce..9f0c75e84 100644 --- a/src/core/file_sys/sdmc_factory.h +++ b/src/core/file_sys/sdmc_factory.h @@ -4,10 +4,6 @@ #pragma once -#include <memory> -#include <string> -#include "common/common_types.h" -#include "core/file_sys/filesystem.h" #include "core/hle/result.h" namespace FileSys { @@ -15,12 +11,12 @@ namespace FileSys { /// File system interface to the SDCard archive class SDMCFactory { public: - explicit SDMCFactory(std::string sd_directory); + explicit SDMCFactory(VirtualDir dir); - ResultVal<std::unique_ptr<FileSystemBackend>> Open(); + ResultVal<VirtualDir> Open(); private: - std::string sd_directory; + VirtualDir dir; }; } // namespace FileSys diff --git a/src/core/file_sys/storage.h b/src/core/file_sys/storage.h deleted file mode 100644 index 2a6811831..000000000 --- a/src/core/file_sys/storage.h +++ /dev/null @@ -1,63 +0,0 @@ -// Copyright 2018 yuzu emulator team -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#pragma once - -#include <cstddef> -#include "common/common_types.h" -#include "core/hle/result.h" - -namespace FileSys { - -class StorageBackend : NonCopyable { -public: - StorageBackend() {} - virtual ~StorageBackend() {} - - /** - * Read data from the file - * @param offset Offset in bytes to start reading data from - * @param length Length in bytes of data to read from file - * @param buffer Buffer to read data into - * @return Number of bytes read, or error code - */ - virtual ResultVal<size_t> Read(u64 offset, size_t length, u8* buffer) const = 0; - - /** - * Write data to the file - * @param offset Offset in bytes to start writing data to - * @param length Length in bytes of data to write to file - * @param flush The flush parameters (0 == do not flush) - * @param buffer Buffer to read data from - * @return Number of bytes written, or error code - */ - virtual ResultVal<size_t> Write(u64 offset, size_t length, bool flush, - const u8* buffer) const = 0; - - /** - * Flushes the file - */ - virtual void Flush() const = 0; - - /** - * Set the size of the file in bytes - * @param size New size of the file - * @return true if successful - */ - virtual bool SetSize(u64 size) const = 0; - - /** - * Get the size of the file in bytes - * @return Size of the file in bytes - */ - virtual u64 GetSize() const = 0; - - /** - * Close the file - * @return true if the file closed correctly - */ - virtual bool Close() const = 0; -}; - -} // namespace FileSys diff --git a/src/core/file_sys/vfs.cpp b/src/core/file_sys/vfs.cpp new file mode 100644 index 000000000..f859ef33f --- /dev/null +++ b/src/core/file_sys/vfs.cpp @@ -0,0 +1,238 @@ +// Copyright 2018 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include <algorithm> +#include <numeric> +#include "common/file_util.h" +#include "common/logging/backend.h" +#include "core/file_sys/vfs.h" + +namespace FileSys { + +VfsFile::~VfsFile() = default; + +std::string VfsFile::GetExtension() const { + return FileUtil::GetExtensionFromFilename(GetName()); +} + +VfsDirectory::~VfsDirectory() = default; + +boost::optional<u8> VfsFile::ReadByte(size_t offset) const { + u8 out{}; + size_t size = Read(&out, 1, offset); + if (size == 1) + return out; + + return boost::none; +} + +std::vector<u8> VfsFile::ReadBytes(size_t size, size_t offset) const { + std::vector<u8> out(size); + size_t read_size = Read(out.data(), size, offset); + out.resize(read_size); + return out; +} + +std::vector<u8> VfsFile::ReadAllBytes() const { + return ReadBytes(GetSize()); +} + +bool VfsFile::WriteByte(u8 data, size_t offset) { + return Write(&data, 1, offset) == 1; +} + +size_t VfsFile::WriteBytes(std::vector<u8> data, size_t offset) { + return Write(data.data(), data.size(), offset); +} + +std::shared_ptr<VfsFile> VfsDirectory::GetFileRelative(const std::string& path) const { + auto vec = FileUtil::SplitPathComponents(path); + vec.erase(std::remove_if(vec.begin(), vec.end(), [](const auto& str) { return str.empty(); }), + vec.end()); + if (vec.empty()) + return nullptr; + if (vec.size() == 1) + return GetFile(vec[0]); + auto dir = GetSubdirectory(vec[0]); + for (size_t component = 1; component < vec.size() - 1; ++component) { + if (dir == nullptr) + return nullptr; + dir = dir->GetSubdirectory(vec[component]); + } + if (dir == nullptr) + return nullptr; + return dir->GetFile(vec.back()); +} + +std::shared_ptr<VfsFile> VfsDirectory::GetFileAbsolute(const std::string& path) const { + if (IsRoot()) + return GetFileRelative(path); + + return GetParentDirectory()->GetFileAbsolute(path); +} + +std::shared_ptr<VfsDirectory> VfsDirectory::GetDirectoryRelative(const std::string& path) const { + auto vec = FileUtil::SplitPathComponents(path); + vec.erase(std::remove_if(vec.begin(), vec.end(), [](const auto& str) { return str.empty(); }), + vec.end()); + if (vec.empty()) + // TODO(DarkLordZach): Return this directory if path is '/' or similar. Can't currently + // because of const-ness + return nullptr; + auto dir = GetSubdirectory(vec[0]); + for (size_t component = 1; component < vec.size(); ++component) { + if (dir == nullptr) + return nullptr; + dir = dir->GetSubdirectory(vec[component]); + } + return dir; +} + +std::shared_ptr<VfsDirectory> VfsDirectory::GetDirectoryAbsolute(const std::string& path) const { + if (IsRoot()) + return GetDirectoryRelative(path); + + return GetParentDirectory()->GetDirectoryAbsolute(path); +} + +std::shared_ptr<VfsFile> VfsDirectory::GetFile(const std::string& name) const { + const auto& files = GetFiles(); + const auto iter = std::find_if(files.begin(), files.end(), + [&name](const auto& file1) { return name == file1->GetName(); }); + return iter == files.end() ? nullptr : *iter; +} + +std::shared_ptr<VfsDirectory> VfsDirectory::GetSubdirectory(const std::string& name) const { + const auto& subs = GetSubdirectories(); + const auto iter = std::find_if(subs.begin(), subs.end(), + [&name](const auto& file1) { return name == file1->GetName(); }); + return iter == subs.end() ? nullptr : *iter; +} + +bool VfsDirectory::IsRoot() const { + return GetParentDirectory() == nullptr; +} + +size_t VfsDirectory::GetSize() const { + const auto& files = GetFiles(); + const auto file_total = + std::accumulate(files.begin(), files.end(), 0ull, + [](const auto& f1, const auto& f2) { return f1 + f2->GetSize(); }); + + const auto& sub_dir = GetSubdirectories(); + const auto subdir_total = + std::accumulate(sub_dir.begin(), sub_dir.end(), 0ull, + [](const auto& f1, const auto& f2) { return f1 + f2->GetSize(); }); + + return file_total + subdir_total; +} + +std::shared_ptr<VfsFile> VfsDirectory::CreateFileRelative(const std::string& path) { + auto vec = FileUtil::SplitPathComponents(path); + vec.erase(std::remove_if(vec.begin(), vec.end(), [](const auto& str) { return str.empty(); }), + vec.end()); + if (vec.empty()) + return nullptr; + if (vec.size() == 1) + return CreateFile(vec[0]); + auto dir = GetSubdirectory(vec[0]); + if (dir == nullptr) { + dir = CreateSubdirectory(vec[0]); + if (dir == nullptr) + return nullptr; + } + + return dir->CreateFileRelative(FileUtil::GetPathWithoutTop(path)); +} + +std::shared_ptr<VfsFile> VfsDirectory::CreateFileAbsolute(const std::string& path) { + if (IsRoot()) + return CreateFileRelative(path); + return GetParentDirectory()->CreateFileAbsolute(path); +} + +std::shared_ptr<VfsDirectory> VfsDirectory::CreateDirectoryRelative(const std::string& path) { + auto vec = FileUtil::SplitPathComponents(path); + vec.erase(std::remove_if(vec.begin(), vec.end(), [](const auto& str) { return str.empty(); }), + vec.end()); + if (vec.empty()) + return nullptr; + if (vec.size() == 1) + return CreateSubdirectory(vec[0]); + auto dir = GetSubdirectory(vec[0]); + if (dir == nullptr) { + dir = CreateSubdirectory(vec[0]); + if (dir == nullptr) + return nullptr; + } + return dir->CreateDirectoryRelative(FileUtil::GetPathWithoutTop(path)); +} + +std::shared_ptr<VfsDirectory> VfsDirectory::CreateDirectoryAbsolute(const std::string& path) { + if (IsRoot()) + return CreateDirectoryRelative(path); + return GetParentDirectory()->CreateDirectoryAbsolute(path); +} + +bool VfsDirectory::DeleteSubdirectoryRecursive(const std::string& name) { + auto dir = GetSubdirectory(name); + if (dir == nullptr) + return false; + + bool success = true; + for (const auto& file : dir->GetFiles()) { + if (!DeleteFile(file->GetName())) + success = false; + } + + for (const auto& sdir : dir->GetSubdirectories()) { + if (!dir->DeleteSubdirectoryRecursive(sdir->GetName())) + success = false; + } + + return success; +} + +bool VfsDirectory::Copy(const std::string& src, const std::string& dest) { + const auto f1 = GetFile(src); + auto f2 = CreateFile(dest); + if (f1 == nullptr || f2 == nullptr) + return false; + + if (!f2->Resize(f1->GetSize())) { + DeleteFile(dest); + return false; + } + + return f2->WriteBytes(f1->ReadAllBytes()) == f1->GetSize(); +} + +bool ReadOnlyVfsDirectory::IsWritable() const { + return false; +} + +bool ReadOnlyVfsDirectory::IsReadable() const { + return true; +} + +std::shared_ptr<VfsDirectory> ReadOnlyVfsDirectory::CreateSubdirectory(const std::string& name) { + return nullptr; +} + +std::shared_ptr<VfsFile> ReadOnlyVfsDirectory::CreateFile(const std::string& name) { + return nullptr; +} + +bool ReadOnlyVfsDirectory::DeleteSubdirectory(const std::string& name) { + return false; +} + +bool ReadOnlyVfsDirectory::DeleteFile(const std::string& name) { + return false; +} + +bool ReadOnlyVfsDirectory::Rename(const std::string& name) { + return false; +} +} // namespace FileSys diff --git a/src/core/file_sys/vfs.h b/src/core/file_sys/vfs.h new file mode 100644 index 000000000..a5213e0cc --- /dev/null +++ b/src/core/file_sys/vfs.h @@ -0,0 +1,237 @@ +// Copyright 2018 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <memory> +#include <string> +#include <type_traits> +#include <vector> +#include "boost/optional.hpp" +#include "common/common_types.h" +#include "common/file_util.h" + +namespace FileSys { +struct VfsFile; +struct VfsDirectory; + +// Convenience typedefs to use VfsDirectory and VfsFile +using VirtualDir = std::shared_ptr<FileSys::VfsDirectory>; +using VirtualFile = std::shared_ptr<FileSys::VfsFile>; + +// A class representing a file in an abstract filesystem. +struct VfsFile : NonCopyable { + virtual ~VfsFile(); + + // Retrieves the file name. + virtual std::string GetName() const = 0; + // Retrieves the extension of the file name. + virtual std::string GetExtension() const; + // Retrieves the size of the file. + virtual size_t GetSize() const = 0; + // Resizes the file to new_size. Returns whether or not the operation was successful. + virtual bool Resize(size_t new_size) = 0; + // Gets a pointer to the directory containing this file, returning nullptr if there is none. + virtual std::shared_ptr<VfsDirectory> GetContainingDirectory() const = 0; + + // Returns whether or not the file can be written to. + virtual bool IsWritable() const = 0; + // Returns whether or not the file can be read from. + virtual bool IsReadable() const = 0; + + // The primary method of reading from the file. Reads length bytes into data starting at offset + // into file. Returns number of bytes successfully read. + virtual size_t Read(u8* data, size_t length, size_t offset = 0) const = 0; + // The primary method of writing to the file. Writes length bytes from data starting at offset + // into file. Returns number of bytes successfully written. + virtual size_t Write(const u8* data, size_t length, size_t offset = 0) = 0; + + // Reads exactly one byte at the offset provided, returning boost::none on error. + virtual boost::optional<u8> ReadByte(size_t offset = 0) const; + // Reads size bytes starting at offset in file into a vector. + virtual std::vector<u8> ReadBytes(size_t size, size_t offset = 0) const; + // Reads all the bytes from the file into a vector. Equivalent to 'file->Read(file->GetSize(), + // 0)' + virtual std::vector<u8> ReadAllBytes() const; + + // Reads an array of type T, size number_elements starting at offset. + // Returns the number of bytes (sizeof(T)*number_elements) read successfully. + template <typename T> + size_t ReadArray(T* data, size_t number_elements, size_t offset = 0) const { + static_assert(std::is_trivially_copyable<T>::value, + "Data type must be trivially copyable."); + + return Read(reinterpret_cast<u8*>(data), number_elements * sizeof(T), offset); + } + + // Reads size bytes into the memory starting at data starting at offset into the file. + // Returns the number of bytes read successfully. + template <typename T> + size_t ReadBytes(T* data, size_t size, size_t offset = 0) const { + static_assert(std::is_trivially_copyable<T>::value, + "Data type must be trivially copyable."); + return Read(reinterpret_cast<u8*>(data), size, offset); + } + + // Reads one object of type T starting at offset in file. + // Returns the number of bytes read successfully (sizeof(T)). + template <typename T> + size_t ReadObject(T* data, size_t offset = 0) const { + static_assert(std::is_trivially_copyable<T>::value, + "Data type must be trivially copyable."); + return Read(reinterpret_cast<u8*>(data), sizeof(T), offset); + } + + // Writes exactly one byte to offset in file and retuns whether or not the byte was written + // successfully. + virtual bool WriteByte(u8 data, size_t offset = 0); + // Writes a vector of bytes to offset in file and returns the number of bytes successfully + // written. + virtual size_t WriteBytes(std::vector<u8> data, size_t offset = 0); + + // Writes an array of type T, size number_elements to offset in file. + // Returns the number of bytes (sizeof(T)*number_elements) written successfully. + template <typename T> + size_t WriteArray(T* data, size_t number_elements, size_t offset = 0) { + static_assert(std::is_trivially_copyable<T>::value, + "Data type must be trivially copyable."); + + return Write(data, number_elements * sizeof(T), offset); + } + + // Writes size bytes starting at memory location data to offset in file. + // Returns the number of bytes written successfully. + template <typename T> + size_t WriteBytes(T* data, size_t size, size_t offset = 0) { + static_assert(std::is_trivially_copyable<T>::value, + "Data type must be trivially copyable."); + return Write(reinterpret_cast<u8*>(data), size, offset); + } + + // Writes one object of type T to offset in file. + // Returns the number of bytes written successfully (sizeof(T)). + template <typename T> + size_t WriteObject(const T& data, size_t offset = 0) { + static_assert(std::is_trivially_copyable<T>::value, + "Data type must be trivially copyable."); + return Write(&data, sizeof(T), offset); + } + + // Renames the file to name. Returns whether or not the operation was successsful. + virtual bool Rename(const std::string& name) = 0; +}; + +// A class representing a directory in an abstract filesystem. +struct VfsDirectory : NonCopyable { + virtual ~VfsDirectory(); + + // Retrives the file located at path as if the current directory was root. Returns nullptr if + // not found. + virtual std::shared_ptr<VfsFile> GetFileRelative(const std::string& path) const; + // Calls GetFileRelative(path) on the root of the current directory. + virtual std::shared_ptr<VfsFile> GetFileAbsolute(const std::string& path) const; + + // Retrives the directory located at path as if the current directory was root. Returns nullptr + // if not found. + virtual std::shared_ptr<VfsDirectory> GetDirectoryRelative(const std::string& path) const; + // Calls GetDirectoryRelative(path) on the root of the current directory. + virtual std::shared_ptr<VfsDirectory> GetDirectoryAbsolute(const std::string& path) const; + + // Returns a vector containing all of the files in this directory. + virtual std::vector<std::shared_ptr<VfsFile>> GetFiles() const = 0; + // Returns the file with filename matching name. Returns nullptr if directory dosen't have a + // file with name. + virtual std::shared_ptr<VfsFile> GetFile(const std::string& name) const; + + // Returns a vector containing all of the subdirectories in this directory. + virtual std::vector<std::shared_ptr<VfsDirectory>> GetSubdirectories() const = 0; + // Returns the directory with name matching name. Returns nullptr if directory dosen't have a + // directory with name. + virtual std::shared_ptr<VfsDirectory> GetSubdirectory(const std::string& name) const; + + // Returns whether or not the directory can be written to. + virtual bool IsWritable() const = 0; + // Returns whether of not the directory can be read from. + virtual bool IsReadable() const = 0; + + // Returns whether or not the directory is the root of the current file tree. + virtual bool IsRoot() const; + + // Returns the name of the directory. + virtual std::string GetName() const = 0; + // Returns the total size of all files and subdirectories in this directory. + virtual size_t GetSize() const; + // Returns the parent directory of this directory. Returns nullptr if this directory is root or + // has no parent. + virtual std::shared_ptr<VfsDirectory> GetParentDirectory() const = 0; + + // Creates a new subdirectory with name name. Returns a pointer to the new directory or nullptr + // if the operation failed. + virtual std::shared_ptr<VfsDirectory> CreateSubdirectory(const std::string& name) = 0; + // Creates a new file with name name. Returns a pointer to the new file or nullptr if the + // operation failed. + virtual std::shared_ptr<VfsFile> CreateFile(const std::string& name) = 0; + + // Creates a new file at the path relative to this directory. Also creates directories if + // they do not exist and is supported by this implementation. Returns nullptr on any failure. + virtual std::shared_ptr<VfsFile> CreateFileRelative(const std::string& path); + + // Creates a new file at the path relative to root of this directory. Also creates directories + // if they do not exist and is supported by this implementation. Returns nullptr on any failure. + virtual std::shared_ptr<VfsFile> CreateFileAbsolute(const std::string& path); + + // Creates a new directory at the path relative to this directory. Also creates directories if + // they do not exist and is supported by this implementation. Returns nullptr on any failure. + virtual std::shared_ptr<VfsDirectory> CreateDirectoryRelative(const std::string& path); + + // Creates a new directory at the path relative to root of this directory. Also creates + // directories if they do not exist and is supported by this implementation. Returns nullptr on + // any failure. + virtual std::shared_ptr<VfsDirectory> CreateDirectoryAbsolute(const std::string& path); + + // Deletes the subdirectory with name and returns true on success. + virtual bool DeleteSubdirectory(const std::string& name) = 0; + // Deletes all subdirectories and files of subdirectory with name recirsively and then deletes + // the subdirectory. Returns true on success. + virtual bool DeleteSubdirectoryRecursive(const std::string& name); + // Returnes whether or not the file with name name was deleted successfully. + virtual bool DeleteFile(const std::string& name) = 0; + + // Returns whether or not this directory was renamed to name. + virtual bool Rename(const std::string& name) = 0; + + // Returns whether or not the file with name src was successfully copied to a new file with name + // dest. + virtual bool Copy(const std::string& src, const std::string& dest); + + // Interprets the file with name file instead as a directory of type directory. + // The directory must have a constructor that takes a single argument of type + // std::shared_ptr<VfsFile>. Allows to reinterpret container files (i.e NCA, zip, XCI, etc) as a + // subdirectory in one call. + template <typename Directory> + bool InterpretAsDirectory(const std::string& file) { + auto file_p = GetFile(file); + if (file_p == nullptr) + return false; + return ReplaceFileWithSubdirectory(file, std::make_shared<Directory>(file_p)); + } + +protected: + // Backend for InterpretAsDirectory. + // Removes all references to file and adds a reference to dir in the directory's implementation. + virtual bool ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) = 0; +}; + +// A convenience partial-implementation of VfsDirectory that stubs out methods that should only work +// if writable. This is to avoid redundant empty methods everywhere. +struct ReadOnlyVfsDirectory : public VfsDirectory { + bool IsWritable() const override; + bool IsReadable() const override; + std::shared_ptr<VfsDirectory> CreateSubdirectory(const std::string& name) override; + std::shared_ptr<VfsFile> CreateFile(const std::string& name) override; + bool DeleteSubdirectory(const std::string& name) override; + bool DeleteFile(const std::string& name) override; + bool Rename(const std::string& name) override; +}; +} // namespace FileSys diff --git a/src/core/file_sys/vfs_offset.cpp b/src/core/file_sys/vfs_offset.cpp new file mode 100644 index 000000000..288499cb5 --- /dev/null +++ b/src/core/file_sys/vfs_offset.cpp @@ -0,0 +1,92 @@ +// Copyright 2018 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "core/file_sys/vfs_offset.h" + +namespace FileSys { + +OffsetVfsFile::OffsetVfsFile(std::shared_ptr<VfsFile> file_, size_t size_, size_t offset_, + const std::string& name_) + : file(file_), offset(offset_), size(size_), name(name_) {} + +std::string OffsetVfsFile::GetName() const { + return name.empty() ? file->GetName() : name; +} + +size_t OffsetVfsFile::GetSize() const { + return size; +} + +bool OffsetVfsFile::Resize(size_t new_size) { + if (offset + new_size < file->GetSize()) { + size = new_size; + } else { + auto res = file->Resize(offset + new_size); + if (!res) + return false; + size = new_size; + } + + return true; +} + +std::shared_ptr<VfsDirectory> OffsetVfsFile::GetContainingDirectory() const { + return file->GetContainingDirectory(); +} + +bool OffsetVfsFile::IsWritable() const { + return file->IsWritable(); +} + +bool OffsetVfsFile::IsReadable() const { + return file->IsReadable(); +} + +size_t OffsetVfsFile::Read(u8* data, size_t length, size_t r_offset) const { + return file->Read(data, TrimToFit(length, r_offset), offset + r_offset); +} + +size_t OffsetVfsFile::Write(const u8* data, size_t length, size_t r_offset) { + return file->Write(data, TrimToFit(length, r_offset), offset + r_offset); +} + +boost::optional<u8> OffsetVfsFile::ReadByte(size_t r_offset) const { + if (r_offset < size) + return file->ReadByte(offset + r_offset); + + return boost::none; +} + +std::vector<u8> OffsetVfsFile::ReadBytes(size_t r_size, size_t r_offset) const { + return file->ReadBytes(TrimToFit(r_size, r_offset), offset + r_offset); +} + +std::vector<u8> OffsetVfsFile::ReadAllBytes() const { + return file->ReadBytes(size, offset); +} + +bool OffsetVfsFile::WriteByte(u8 data, size_t r_offset) { + if (r_offset < size) + return file->WriteByte(data, offset + r_offset); + + return false; +} + +size_t OffsetVfsFile::WriteBytes(std::vector<u8> data, size_t r_offset) { + return file->Write(data.data(), TrimToFit(data.size(), r_offset), offset + r_offset); +} + +bool OffsetVfsFile::Rename(const std::string& name) { + return file->Rename(name); +} + +size_t OffsetVfsFile::GetOffset() const { + return offset; +} + +size_t OffsetVfsFile::TrimToFit(size_t r_size, size_t r_offset) const { + return std::max<size_t>(std::min<size_t>(size - r_offset, r_size), 0); +} + +} // namespace FileSys diff --git a/src/core/file_sys/vfs_offset.h b/src/core/file_sys/vfs_offset.h new file mode 100644 index 000000000..adc615b38 --- /dev/null +++ b/src/core/file_sys/vfs_offset.h @@ -0,0 +1,46 @@ +// Copyright 2018 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include "core/file_sys/vfs.h" + +namespace FileSys { + +// An implementation of VfsFile that wraps around another VfsFile at a certain offset. +// Similar to seeking to an offset. +// If the file is writable, operations that would write past the end of the offset file will expand +// the size of this wrapper. +struct OffsetVfsFile : public VfsFile { + OffsetVfsFile(std::shared_ptr<VfsFile> file, size_t size, size_t offset = 0, + const std::string& new_name = ""); + + std::string GetName() const override; + size_t GetSize() const override; + bool Resize(size_t new_size) override; + std::shared_ptr<VfsDirectory> GetContainingDirectory() const override; + bool IsWritable() const override; + bool IsReadable() const override; + size_t Read(u8* data, size_t length, size_t offset) const override; + size_t Write(const u8* data, size_t length, size_t offset) override; + boost::optional<u8> ReadByte(size_t offset) const override; + std::vector<u8> ReadBytes(size_t size, size_t offset) const override; + std::vector<u8> ReadAllBytes() const override; + bool WriteByte(u8 data, size_t offset) override; + size_t WriteBytes(std::vector<u8> data, size_t offset) override; + + bool Rename(const std::string& name) override; + + size_t GetOffset() const; + +private: + size_t TrimToFit(size_t r_size, size_t r_offset) const; + + std::shared_ptr<VfsFile> file; + size_t offset; + size_t size; + std::string name; +}; + +} // namespace FileSys diff --git a/src/core/file_sys/vfs_real.cpp b/src/core/file_sys/vfs_real.cpp new file mode 100644 index 000000000..22c858e0d --- /dev/null +++ b/src/core/file_sys/vfs_real.cpp @@ -0,0 +1,177 @@ +// Copyright 2018 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "common/common_paths.h" +#include "common/logging/log.h" +#include "core/file_sys/vfs_real.h" + +namespace FileSys { + +static std::string PermissionsToCharArray(Mode perms) { + std::string out; + switch (perms) { + case Mode::Read: + out += "r"; + break; + case Mode::Write: + out += "r+"; + break; + case Mode::Append: + out += "a"; + break; + } + return out + "b"; +} + +RealVfsFile::RealVfsFile(const std::string& path_, Mode perms_) + : backing(path_, PermissionsToCharArray(perms_).c_str()), path(path_), + parent_path(FileUtil::GetParentPath(path_)), + path_components(FileUtil::SplitPathComponents(path_)), + parent_components(FileUtil::SliceVector(path_components, 0, path_components.size() - 1)), + perms(perms_) {} + +std::string RealVfsFile::GetName() const { + return path_components.back(); +} + +size_t RealVfsFile::GetSize() const { + return backing.GetSize(); +} + +bool RealVfsFile::Resize(size_t new_size) { + return backing.Resize(new_size); +} + +std::shared_ptr<VfsDirectory> RealVfsFile::GetContainingDirectory() const { + return std::make_shared<RealVfsDirectory>(parent_path, perms); +} + +bool RealVfsFile::IsWritable() const { + return perms == Mode::Append || perms == Mode::Write; +} + +bool RealVfsFile::IsReadable() const { + return perms == Mode::Read || perms == Mode::Write; +} + +size_t RealVfsFile::Read(u8* data, size_t length, size_t offset) const { + if (!backing.Seek(offset, SEEK_SET)) + return 0; + return backing.ReadBytes(data, length); +} + +size_t RealVfsFile::Write(const u8* data, size_t length, size_t offset) { + if (!backing.Seek(offset, SEEK_SET)) + return 0; + return backing.WriteBytes(data, length); +} + +bool RealVfsFile::Rename(const std::string& name) { + const auto out = FileUtil::Rename(GetName(), name); + path = parent_path + DIR_SEP + name; + path_components = parent_components; + path_components.push_back(name); + backing = FileUtil::IOFile(path, PermissionsToCharArray(perms).c_str()); + return out; +} + +bool RealVfsFile::Close() { + return backing.Close(); +} + +RealVfsDirectory::RealVfsDirectory(const std::string& path_, Mode perms_) + : path(FileUtil::RemoveTrailingSlash(path_)), parent_path(FileUtil::GetParentPath(path)), + path_components(FileUtil::SplitPathComponents(path)), + parent_components(FileUtil::SliceVector(path_components, 0, path_components.size() - 1)), + perms(perms_) { + if (!FileUtil::Exists(path) && (perms == Mode::Write || perms == Mode::Append)) + FileUtil::CreateDir(path); + unsigned size; + if (perms == Mode::Append) + return; + + FileUtil::ForeachDirectoryEntry( + &size, path, + [this](unsigned* entries_out, const std::string& directory, const std::string& filename) { + std::string full_path = directory + DIR_SEP + filename; + if (FileUtil::IsDirectory(full_path)) + subdirectories.emplace_back(std::make_shared<RealVfsDirectory>(full_path, perms)); + else + files.emplace_back(std::make_shared<RealVfsFile>(full_path, perms)); + return true; + }); +} + +std::vector<std::shared_ptr<VfsFile>> RealVfsDirectory::GetFiles() const { + return std::vector<std::shared_ptr<VfsFile>>(files); +} + +std::vector<std::shared_ptr<VfsDirectory>> RealVfsDirectory::GetSubdirectories() const { + return std::vector<std::shared_ptr<VfsDirectory>>(subdirectories); +} + +bool RealVfsDirectory::IsWritable() const { + return perms == Mode::Write || perms == Mode::Append; +} + +bool RealVfsDirectory::IsReadable() const { + return perms == Mode::Read || perms == Mode::Write; +} + +std::string RealVfsDirectory::GetName() const { + return path_components.back(); +} + +std::shared_ptr<VfsDirectory> RealVfsDirectory::GetParentDirectory() const { + if (path_components.size() <= 1) + return nullptr; + + return std::make_shared<RealVfsDirectory>(parent_path, perms); +} + +std::shared_ptr<VfsDirectory> RealVfsDirectory::CreateSubdirectory(const std::string& name) { + if (!FileUtil::CreateDir(path + DIR_SEP + name)) + return nullptr; + subdirectories.emplace_back(std::make_shared<RealVfsDirectory>(path + DIR_SEP + name, perms)); + return subdirectories.back(); +} + +std::shared_ptr<VfsFile> RealVfsDirectory::CreateFile(const std::string& name) { + if (!FileUtil::CreateEmptyFile(path + DIR_SEP + name)) + return nullptr; + files.emplace_back(std::make_shared<RealVfsFile>(path + DIR_SEP + name, perms)); + return files.back(); +} + +bool RealVfsDirectory::DeleteSubdirectory(const std::string& name) { + return FileUtil::DeleteDirRecursively(path + DIR_SEP + name); +} + +bool RealVfsDirectory::DeleteFile(const std::string& name) { + auto file = GetFile(name); + if (file == nullptr) + return false; + files.erase(std::find(files.begin(), files.end(), file)); + auto real_file = std::static_pointer_cast<RealVfsFile>(file); + real_file->Close(); + return FileUtil::Delete(path + DIR_SEP + name); +} + +bool RealVfsDirectory::Rename(const std::string& name) { + return FileUtil::Rename(path, parent_path + DIR_SEP + name); +} + +bool RealVfsDirectory::ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) { + auto iter = std::find(files.begin(), files.end(), file); + if (iter == files.end()) + return false; + + files[iter - files.begin()] = files.back(); + files.pop_back(); + + subdirectories.emplace_back(dir); + + return true; +} +} // namespace FileSys diff --git a/src/core/file_sys/vfs_real.h b/src/core/file_sys/vfs_real.h new file mode 100644 index 000000000..5b765a552 --- /dev/null +++ b/src/core/file_sys/vfs_real.h @@ -0,0 +1,69 @@ +// Copyright 2018 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include "common/file_util.h" +#include "core/file_sys/mode.h" +#include "core/file_sys/vfs.h" + +namespace FileSys { + +// An implmentation of VfsFile that represents a file on the user's computer. +struct RealVfsFile : public VfsFile { + friend struct RealVfsDirectory; + + RealVfsFile(const std::string& name, Mode perms = Mode::Read); + + std::string GetName() const override; + size_t GetSize() const override; + bool Resize(size_t new_size) override; + std::shared_ptr<VfsDirectory> GetContainingDirectory() const override; + bool IsWritable() const override; + bool IsReadable() const override; + size_t Read(u8* data, size_t length, size_t offset) const override; + size_t Write(const u8* data, size_t length, size_t offset) override; + bool Rename(const std::string& name) override; + +private: + bool Close(); + + FileUtil::IOFile backing; + std::string path; + std::string parent_path; + std::vector<std::string> path_components; + std::vector<std::string> parent_components; + Mode perms; +}; + +// An implementation of VfsDirectory that represents a directory on the user's computer. +struct RealVfsDirectory : public VfsDirectory { + RealVfsDirectory(const std::string& path, Mode perms); + + std::vector<std::shared_ptr<VfsFile>> GetFiles() const override; + std::vector<std::shared_ptr<VfsDirectory>> GetSubdirectories() const override; + bool IsWritable() const override; + bool IsReadable() const override; + std::string GetName() const override; + std::shared_ptr<VfsDirectory> GetParentDirectory() const override; + std::shared_ptr<VfsDirectory> CreateSubdirectory(const std::string& name) override; + std::shared_ptr<VfsFile> CreateFile(const std::string& name) override; + bool DeleteSubdirectory(const std::string& name) override; + bool DeleteFile(const std::string& name) override; + bool Rename(const std::string& name) override; + +protected: + bool ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) override; + +private: + std::string path; + std::string parent_path; + std::vector<std::string> path_components; + std::vector<std::string> parent_components; + Mode perms; + std::vector<std::shared_ptr<VfsFile>> files; + std::vector<std::shared_ptr<VfsDirectory>> subdirectories; +}; + +} // namespace FileSys diff --git a/src/core/hle/service/am/am.cpp b/src/core/hle/service/am/am.cpp index 0f0ab1e6a..97ef07bf9 100644 --- a/src/core/hle/service/am/am.cpp +++ b/src/core/hle/service/am/am.cpp @@ -5,7 +5,6 @@ #include <cinttypes> #include <stack> #include "core/core.h" -#include "core/file_sys/filesystem.h" #include "core/hle/ipc_helpers.h" #include "core/hle/kernel/event.h" #include "core/hle/kernel/process.h" diff --git a/src/core/hle/service/filesystem/filesystem.cpp b/src/core/hle/service/filesystem/filesystem.cpp index 902256757..ec528ef40 100644 --- a/src/core/hle/service/filesystem/filesystem.cpp +++ b/src/core/hle/service/filesystem/filesystem.cpp @@ -2,17 +2,204 @@ // Licensed under GPLv2 or any later version // Refer to the license.txt file included. -#include <boost/container/flat_map.hpp> +#pragma optimize("", off) + +#include "common/assert.h" #include "common/file_util.h" +#include "core/core.h" #include "core/file_sys/errors.h" -#include "core/file_sys/filesystem.h" #include "core/file_sys/savedata_factory.h" #include "core/file_sys/sdmc_factory.h" +#include "core/file_sys/vfs.h" +#include "core/file_sys/vfs_offset.h" +#include "core/file_sys/vfs_real.h" #include "core/hle/service/filesystem/filesystem.h" #include "core/hle/service/filesystem/fsp_srv.h" namespace Service::FileSystem { +// Size of emulated sd card free space, reported in bytes. +// Just using 32GB because thats reasonable +// TODO(DarkLordZach): Eventually make this configurable in settings. +constexpr u64 EMULATED_SD_REPORTED_SIZE = 32000000000; + +static FileSys::VirtualDir GetDirectoryRelativeWrapped(FileSys::VirtualDir base, + const std::string& dir_name) { + if (dir_name == "." || dir_name == "" || dir_name == "/" || dir_name == "\\") + return base; + + return base->GetDirectoryRelative(dir_name); +} + +VfsDirectoryServiceWrapper::VfsDirectoryServiceWrapper(FileSys::VirtualDir backing_) + : backing(backing_) {} + +std::string VfsDirectoryServiceWrapper::GetName() const { + return backing->GetName(); +} + +ResultCode VfsDirectoryServiceWrapper::CreateFile(const std::string& path, u64 size) const { + auto dir = GetDirectoryRelativeWrapped(backing, FileUtil::GetParentPath(path)); + auto file = dir->CreateFile(FileUtil::GetFilename(path)); + if (file == nullptr) { + // TODO(DarkLordZach): Find a better error code for this + return ResultCode(-1); + } + if (!file->Resize(size)) { + // TODO(DarkLordZach): Find a better error code for this + return ResultCode(-1); + } + return RESULT_SUCCESS; +} + +ResultCode VfsDirectoryServiceWrapper::DeleteFile(const std::string& path) const { + auto dir = GetDirectoryRelativeWrapped(backing, FileUtil::GetParentPath(path)); + if (path == "/" || path == "\\") { + // TODO(DarkLordZach): Why do games call this and what should it do? Works as is but... + return RESULT_SUCCESS; + } + if (dir->GetFile(FileUtil::GetFilename(path)) == nullptr) + return FileSys::ERROR_PATH_NOT_FOUND; + if (!backing->DeleteFile(FileUtil::GetFilename(path))) { + // TODO(DarkLordZach): Find a better error code for this + return ResultCode(-1); + } + return RESULT_SUCCESS; +} + +ResultCode VfsDirectoryServiceWrapper::CreateDirectory(const std::string& path) const { + auto dir = GetDirectoryRelativeWrapped(backing, FileUtil::GetParentPath(path)); + if (dir == nullptr && FileUtil::GetFilename(FileUtil::GetParentPath(path)).empty()) + dir = backing; + auto new_dir = dir->CreateSubdirectory(FileUtil::GetFilename(path)); + if (new_dir == nullptr) { + // TODO(DarkLordZach): Find a better error code for this + return ResultCode(-1); + } + return RESULT_SUCCESS; +} + +ResultCode VfsDirectoryServiceWrapper::DeleteDirectory(const std::string& path) const { + auto dir = GetDirectoryRelativeWrapped(backing, FileUtil::GetParentPath(path)); + if (!dir->DeleteSubdirectory(FileUtil::GetFilename(path))) { + // TODO(DarkLordZach): Find a better error code for this + return ResultCode(-1); + } + return RESULT_SUCCESS; +} + +ResultCode VfsDirectoryServiceWrapper::DeleteDirectoryRecursively(const std::string& path) const { + auto dir = GetDirectoryRelativeWrapped(backing, FileUtil::GetParentPath(path)); + if (!dir->DeleteSubdirectoryRecursive(FileUtil::GetFilename(path))) { + // TODO(DarkLordZach): Find a better error code for this + return ResultCode(-1); + } + return RESULT_SUCCESS; +} + +ResultCode VfsDirectoryServiceWrapper::RenameFile(const std::string& src_path, + const std::string& dest_path) const { + auto src = backing->GetFileRelative(src_path); + if (FileUtil::GetParentPath(src_path) == FileUtil::GetParentPath(dest_path)) { + // Use more-optimized vfs implementation rename. + if (src == nullptr) + return FileSys::ERROR_PATH_NOT_FOUND; + if (!src->Rename(FileUtil::GetFilename(dest_path))) { + // TODO(DarkLordZach): Find a better error code for this + return ResultCode(-1); + } + return RESULT_SUCCESS; + } + + // Move by hand -- TODO(DarkLordZach): Optimize + auto c_res = CreateFile(dest_path, src->GetSize()); + if (c_res != RESULT_SUCCESS) + return c_res; + + auto dest = backing->GetFileRelative(dest_path); + ASSERT_MSG(dest != nullptr, "Newly created file with success cannot be found."); + + ASSERT_MSG(dest->WriteBytes(src->ReadAllBytes()) == src->GetSize(), + "Could not write all of the bytes but everything else has succeded."); + + if (!src->GetContainingDirectory()->DeleteFile(FileUtil::GetFilename(src_path))) { + // TODO(DarkLordZach): Find a better error code for this + return ResultCode(-1); + } + + return RESULT_SUCCESS; +} + +ResultCode VfsDirectoryServiceWrapper::RenameDirectory(const std::string& src_path, + const std::string& dest_path) const { + auto src = GetDirectoryRelativeWrapped(backing, src_path); + if (FileUtil::GetParentPath(src_path) == FileUtil::GetParentPath(dest_path)) { + // Use more-optimized vfs implementation rename. + if (src == nullptr) + return FileSys::ERROR_PATH_NOT_FOUND; + if (!src->Rename(FileUtil::GetFilename(dest_path))) { + // TODO(DarkLordZach): Find a better error code for this + return ResultCode(-1); + } + return RESULT_SUCCESS; + } + + // TODO(DarkLordZach): Implement renaming across the tree (move). + ASSERT_MSG(false, + "Could not rename directory with path \"{}\" to new path \"{}\" because parent dirs " + "don't match -- UNIMPLEMENTED", + src_path, dest_path); + + // TODO(DarkLordZach): Find a better error code for this + return ResultCode(-1); +} + +ResultVal<FileSys::VirtualFile> VfsDirectoryServiceWrapper::OpenFile(const std::string& path, + FileSys::Mode mode) const { + auto npath = path; + while (npath.size() > 0 && (npath[0] == '/' || npath[0] == '\\')) + npath = npath.substr(1); + auto file = backing->GetFileRelative(npath); + if (file == nullptr) + return FileSys::ERROR_PATH_NOT_FOUND; + + if (mode == FileSys::Mode::Append) { + return MakeResult<FileSys::VirtualFile>( + std::make_shared<FileSys::OffsetVfsFile>(file, 0, file->GetSize())); + } + + return MakeResult<FileSys::VirtualFile>(file); +} + +ResultVal<FileSys::VirtualDir> VfsDirectoryServiceWrapper::OpenDirectory(const std::string& path) { + auto dir = GetDirectoryRelativeWrapped(backing, path); + if (dir == nullptr) { + // TODO(DarkLordZach): Find a better error code for this + return ResultCode(-1); + } + return MakeResult(dir); +} + +u64 VfsDirectoryServiceWrapper::GetFreeSpaceSize() const { + if (backing->IsWritable()) + return EMULATED_SD_REPORTED_SIZE; + + return 0; +} + +ResultVal<FileSys::EntryType> VfsDirectoryServiceWrapper::GetEntryType( + const std::string& path) const { + auto dir = GetDirectoryRelativeWrapped(backing, FileUtil::GetParentPath(path)); + if (dir == nullptr) + return FileSys::ERROR_PATH_NOT_FOUND; + auto filename = FileUtil::GetFilename(path); + if (dir->GetFile(filename) != nullptr) + return MakeResult(FileSys::EntryType::File); + if (dir->GetSubdirectory(filename) != nullptr) + return MakeResult(FileSys::EntryType::Directory); + return FileSys::ERROR_PATH_NOT_FOUND; +} + /** * Map of registered file systems, identified by type. Once an file system is registered here, it * is never removed until UnregisterFileSystems is called. @@ -42,7 +229,7 @@ ResultCode RegisterSDMC(std::unique_ptr<FileSys::SDMCFactory>&& factory) { return RESULT_SUCCESS; } -ResultVal<std::unique_ptr<FileSys::FileSystemBackend>> OpenRomFS(u64 title_id) { +ResultVal<FileSys::VirtualFile> OpenRomFS(u64 title_id) { LOG_TRACE(Service_FS, "Opening RomFS for title_id={:016X}", title_id); if (romfs_factory == nullptr) { @@ -53,19 +240,19 @@ ResultVal<std::unique_ptr<FileSys::FileSystemBackend>> OpenRomFS(u64 title_id) { return romfs_factory->Open(title_id); } -ResultVal<std::unique_ptr<FileSys::FileSystemBackend>> OpenSaveData( - FileSys::SaveDataSpaceId space, FileSys::SaveDataDescriptor save_struct) { +ResultVal<FileSys::VirtualDir> OpenSaveData(FileSys::SaveDataSpaceId space, + FileSys::SaveDataDescriptor save_struct) { LOG_TRACE(Service_FS, "Opening Save Data for space_id={:01X}, save_struct={}", - static_cast<u8>(space), SaveStructDebugInfo(save_struct)); + static_cast<u8>(space), save_struct.DebugInfo()); if (save_data_factory == nullptr) { - return ResultCode(ErrorModule::FS, FileSys::ErrCodes::SaveDataNotFound); + return ResultCode(ErrorModule::FS, FileSys::ErrCodes::TitleNotFound); } return save_data_factory->Open(space, save_struct); } -ResultVal<std::unique_ptr<FileSys::FileSystemBackend>> OpenSDMC() { +ResultVal<FileSys::VirtualDir> OpenSDMC() { LOG_TRACE(Service_FS, "Opening SDMC"); if (sdmc_factory == nullptr) { @@ -80,8 +267,10 @@ void RegisterFileSystems() { save_data_factory = nullptr; sdmc_factory = nullptr; - std::string nand_directory = FileUtil::GetUserPath(D_NAND_IDX); - std::string sd_directory = FileUtil::GetUserPath(D_SDMC_IDX); + auto nand_directory = std::make_shared<FileSys::RealVfsDirectory>( + FileUtil::GetUserPath(D_NAND_IDX), FileSys::Mode::Write); + auto sd_directory = std::make_shared<FileSys::RealVfsDirectory>( + FileUtil::GetUserPath(D_SDMC_IDX), FileSys::Mode::Write); auto savedata = std::make_unique<FileSys::SaveDataFactory>(std::move(nand_directory)); save_data_factory = std::move(savedata); diff --git a/src/core/hle/service/filesystem/filesystem.h b/src/core/hle/service/filesystem/filesystem.h index 45272d326..d4483daa5 100644 --- a/src/core/hle/service/filesystem/filesystem.h +++ b/src/core/hle/service/filesystem/filesystem.h @@ -6,15 +6,13 @@ #include <memory> #include "common/common_types.h" +#include "core/file_sys/directory.h" +#include "core/file_sys/mode.h" #include "core/file_sys/romfs_factory.h" #include "core/file_sys/savedata_factory.h" #include "core/file_sys/sdmc_factory.h" #include "core/hle/result.h" -namespace FileSys { -class FileSystemBackend; -} // namespace FileSys - namespace Service { namespace SM { @@ -29,11 +27,10 @@ ResultCode RegisterSDMC(std::unique_ptr<FileSys::SDMCFactory>&& factory); // TODO(DarkLordZach): BIS Filesystem // ResultCode RegisterBIS(std::unique_ptr<FileSys::BISFactory>&& factory); - -ResultVal<std::unique_ptr<FileSys::FileSystemBackend>> OpenRomFS(u64 title_id); -ResultVal<std::unique_ptr<FileSys::FileSystemBackend>> OpenSaveData( - FileSys::SaveDataSpaceId space, FileSys::SaveDataDescriptor save_struct); -ResultVal<std::unique_ptr<FileSys::FileSystemBackend>> OpenSDMC(); +ResultVal<FileSys::VirtualFile> OpenRomFS(u64 title_id); +ResultVal<FileSys::VirtualDir> OpenSaveData(FileSys::SaveDataSpaceId space, + FileSys::SaveDataDescriptor save_struct); +ResultVal<FileSys::VirtualDir> OpenSDMC(); // TODO(DarkLordZach): BIS Filesystem // ResultVal<std::unique_ptr<FileSys::FileSystemBackend>> OpenBIS(); @@ -41,5 +38,100 @@ ResultVal<std::unique_ptr<FileSys::FileSystemBackend>> OpenSDMC(); /// Registers all Filesystem services with the specified service manager. void InstallInterfaces(SM::ServiceManager& service_manager); +// A class that wraps a VfsDirectory with methods that return ResultVal and ResultCode instead of +// pointers and booleans. This makes using a VfsDirectory with switch services much easier and +// avoids repetitive code. +class VfsDirectoryServiceWrapper { +public: + explicit VfsDirectoryServiceWrapper(FileSys::VirtualDir backing); + + /** + * Get a descriptive name for the archive (e.g. "RomFS", "SaveData", etc.) + */ + std::string GetName() const; + + /** + * Create a file specified by its path + * @param path Path relative to the Archive + * @param size The size of the new file, filled with zeroes + * @return Result of the operation + */ + ResultCode CreateFile(const std::string& path, u64 size) const; + + /** + * Delete a file specified by its path + * @param path Path relative to the archive + * @return Result of the operation + */ + ResultCode DeleteFile(const std::string& path) const; + + /** + * Create a directory specified by its path + * @param path Path relative to the archive + * @return Result of the operation + */ + ResultCode CreateDirectory(const std::string& path) const; + + /** + * Delete a directory specified by its path + * @param path Path relative to the archive + * @return Result of the operation + */ + ResultCode DeleteDirectory(const std::string& path) const; + + /** + * Delete a directory specified by its path and anything under it + * @param path Path relative to the archive + * @return Result of the operation + */ + ResultCode DeleteDirectoryRecursively(const std::string& path) const; + + /** + * Rename a File specified by its path + * @param src_path Source path relative to the archive + * @param dest_path Destination path relative to the archive + * @return Result of the operation + */ + ResultCode RenameFile(const std::string& src_path, const std::string& dest_path) const; + + /** + * Rename a Directory specified by its path + * @param src_path Source path relative to the archive + * @param dest_path Destination path relative to the archive + * @return Result of the operation + */ + ResultCode RenameDirectory(const std::string& src_path, const std::string& dest_path) const; + + /** + * Open a file specified by its path, using the specified mode + * @param path Path relative to the archive + * @param mode Mode to open the file with + * @return Opened file, or error code + */ + ResultVal<FileSys::VirtualFile> OpenFile(const std::string& path, FileSys::Mode mode) const; + + /** + * Open a directory specified by its path + * @param path Path relative to the archive + * @return Opened directory, or error code + */ + ResultVal<FileSys::VirtualDir> OpenDirectory(const std::string& path); + + /** + * Get the free space + * @return The number of free bytes in the archive + */ + u64 GetFreeSpaceSize() const; + + /** + * Get the type of the specified path + * @return The type of the specified path or error code + */ + ResultVal<FileSys::EntryType> GetEntryType(const std::string& path) const; + +private: + FileSys::VirtualDir backing; +}; + } // namespace FileSystem } // namespace Service diff --git a/src/core/hle/service/filesystem/fsp_srv.cpp b/src/core/hle/service/filesystem/fsp_srv.cpp index 22d3e645d..1b003bd84 100644 --- a/src/core/hle/service/filesystem/fsp_srv.cpp +++ b/src/core/hle/service/filesystem/fsp_srv.cpp @@ -8,11 +8,7 @@ #include "core/core.h" #include "core/file_sys/directory.h" #include "core/file_sys/errors.h" -#include "core/file_sys/filesystem.h" -#include "core/file_sys/storage.h" #include "core/hle/ipc_helpers.h" -#include "core/hle/kernel/client_port.h" -#include "core/hle/kernel/client_session.h" #include "core/hle/kernel/process.h" #include "core/hle/service/filesystem/filesystem.h" #include "core/hle/service/filesystem/fsp_srv.h" @@ -25,13 +21,13 @@ enum class StorageId : u8 { GameCard = 2, NandSystem = 3, NandUser = 4, - SdCard = 5 + SdCard = 5, }; class IStorage final : public ServiceFramework<IStorage> { public: - IStorage(std::unique_ptr<FileSys::StorageBackend>&& backend) - : ServiceFramework("IStorage"), backend(std::move(backend)) { + IStorage(FileSys::VirtualFile backend_) + : ServiceFramework("IStorage"), backend(std::move(backend_)) { static const FunctionInfo functions[] = { {0, &IStorage::Read, "Read"}, {1, nullptr, "Write"}, {2, nullptr, "Flush"}, {3, nullptr, "SetSize"}, {4, nullptr, "GetSize"}, {5, nullptr, "OperateRange"}, @@ -40,7 +36,7 @@ public: } private: - std::unique_ptr<FileSys::StorageBackend> backend; + FileSys::VirtualFile backend; void Read(Kernel::HLERequestContext& ctx) { IPC::RequestParser rp{ctx}; @@ -62,14 +58,7 @@ private: } // Read the data from the Storage backend - std::vector<u8> output(length); - ResultVal<size_t> res = backend->Read(offset, length, output.data()); - if (res.Failed()) { - IPC::ResponseBuilder rb{ctx, 2}; - rb.Push(res.Code()); - return; - } - + std::vector<u8> output = backend->ReadBytes(length, offset); // Write the data to memory ctx.WriteBuffer(output); @@ -80,8 +69,8 @@ private: class IFile final : public ServiceFramework<IFile> { public: - explicit IFile(std::unique_ptr<FileSys::StorageBackend>&& backend) - : ServiceFramework("IFile"), backend(std::move(backend)) { + explicit IFile(FileSys::VirtualFile backend_) + : ServiceFramework("IFile"), backend(std::move(backend_)) { static const FunctionInfo functions[] = { {0, &IFile::Read, "Read"}, {1, &IFile::Write, "Write"}, {2, &IFile::Flush, "Flush"}, {3, &IFile::SetSize, "SetSize"}, @@ -91,7 +80,7 @@ public: } private: - std::unique_ptr<FileSys::StorageBackend> backend; + FileSys::VirtualFile backend; void Read(Kernel::HLERequestContext& ctx) { IPC::RequestParser rp{ctx}; @@ -114,20 +103,14 @@ private: } // Read the data from the Storage backend - std::vector<u8> output(length); - ResultVal<size_t> res = backend->Read(offset, length, output.data()); - if (res.Failed()) { - IPC::ResponseBuilder rb{ctx, 2}; - rb.Push(res.Code()); - return; - } + std::vector<u8> output = backend->ReadBytes(length, offset); // Write the data to memory ctx.WriteBuffer(output); IPC::ResponseBuilder rb{ctx, 4}; rb.Push(RESULT_SUCCESS); - rb.Push(static_cast<u64>(*res)); + rb.Push(static_cast<u64>(output.size())); } void Write(Kernel::HLERequestContext& ctx) { @@ -150,14 +133,21 @@ private: return; } - // Write the data to the Storage backend std::vector<u8> data = ctx.ReadBuffer(); - ResultVal<size_t> res = backend->Write(offset, length, true, data.data()); - if (res.Failed()) { - IPC::ResponseBuilder rb{ctx, 2}; - rb.Push(res.Code()); - return; - } + std::vector<u8> actual_data(length); + + ASSERT_MSG( + data.size() <= length, + "Attempting to write more data than requested (requested={:016X}, actual={:016X}).", + length, data.size()); + + std::copy(data.begin(), data.end(), actual_data.begin()); + // Write the data to the Storage backend + auto written = backend->WriteBytes(data, offset); + + ASSERT_MSG(written == length, + "Could not write all bytes to file (requested={:016X}, actual={:016X}).", length, + written); IPC::ResponseBuilder rb{ctx, 2}; rb.Push(RESULT_SUCCESS); @@ -165,7 +155,8 @@ private: void Flush(Kernel::HLERequestContext& ctx) { LOG_DEBUG(Service_FS, "called"); - backend->Flush(); + + // Exists for SDK compatibiltity -- No need to flush file. IPC::ResponseBuilder rb{ctx, 2}; rb.Push(RESULT_SUCCESS); @@ -174,7 +165,7 @@ private: void SetSize(Kernel::HLERequestContext& ctx) { IPC::RequestParser rp{ctx}; const u64 size = rp.Pop<u64>(); - backend->SetSize(size); + backend->Resize(size); LOG_DEBUG(Service_FS, "called, size={}", size); IPC::ResponseBuilder rb{ctx, 2}; @@ -191,19 +182,39 @@ private: } }; +template <typename T> +static void BuildEntryIndex(std::vector<FileSys::Entry>& entries, const std::vector<T>& new_data, + FileSys::EntryType type) { + for (const auto& new_entry : new_data) { + FileSys::Entry entry; + entry.filename[0] = '\0'; + std::strncat(entry.filename, new_entry->GetName().c_str(), FileSys::FILENAME_LENGTH - 1); + entry.type = type; + entry.file_size = new_entry->GetSize(); + entries.emplace_back(std::move(entry)); + } +} + class IDirectory final : public ServiceFramework<IDirectory> { public: - explicit IDirectory(std::unique_ptr<FileSys::DirectoryBackend>&& backend) - : ServiceFramework("IDirectory"), backend(std::move(backend)) { + explicit IDirectory(FileSys::VirtualDir backend_) + : ServiceFramework("IDirectory"), backend(std::move(backend_)) { static const FunctionInfo functions[] = { {0, &IDirectory::Read, "Read"}, {1, &IDirectory::GetEntryCount, "GetEntryCount"}, }; RegisterHandlers(functions); + + // TODO(DarkLordZach): Verify that this is the correct behavior. + // Build entry index now to save time later. + BuildEntryIndex(entries, backend->GetFiles(), FileSys::File); + BuildEntryIndex(entries, backend->GetSubdirectories(), FileSys::Directory); } private: - std::unique_ptr<FileSys::DirectoryBackend> backend; + FileSys::VirtualDir backend; + std::vector<FileSys::Entry> entries; + u64 next_entry_index = 0; void Read(Kernel::HLERequestContext& ctx) { IPC::RequestParser rp{ctx}; @@ -214,26 +225,31 @@ private: // Calculate how many entries we can fit in the output buffer u64 count_entries = ctx.GetWriteBufferSize() / sizeof(FileSys::Entry); + // Cap at total number of entries. + u64 actual_entries = std::min(count_entries, entries.size() - next_entry_index); + // Read the data from the Directory backend - std::vector<FileSys::Entry> entries(count_entries); - u64 read_entries = backend->Read(count_entries, entries.data()); + std::vector<FileSys::Entry> entry_data(entries.begin() + next_entry_index, + entries.begin() + next_entry_index + actual_entries); + + next_entry_index += actual_entries; // Convert the data into a byte array - std::vector<u8> output(entries.size() * sizeof(FileSys::Entry)); - std::memcpy(output.data(), entries.data(), output.size()); + std::vector<u8> output(entry_data.size() * sizeof(FileSys::Entry)); + std::memcpy(output.data(), entry_data.data(), output.size()); // Write the data to memory ctx.WriteBuffer(output); IPC::ResponseBuilder rb{ctx, 4}; rb.Push(RESULT_SUCCESS); - rb.Push(read_entries); + rb.Push(actual_entries); } void GetEntryCount(Kernel::HLERequestContext& ctx) { LOG_DEBUG(Service_FS, "called"); - u64 count = backend->GetEntryCount(); + u64 count = entries.size() - next_entry_index; IPC::ResponseBuilder rb{ctx, 4}; rb.Push(RESULT_SUCCESS); @@ -243,7 +259,7 @@ private: class IFileSystem final : public ServiceFramework<IFileSystem> { public: - explicit IFileSystem(std::unique_ptr<FileSys::FileSystemBackend>&& backend) + explicit IFileSystem(FileSys::VirtualDir backend) : ServiceFramework("IFileSystem"), backend(std::move(backend)) { static const FunctionInfo functions[] = { {0, &IFileSystem::CreateFile, "CreateFile"}, @@ -278,7 +294,7 @@ public: LOG_DEBUG(Service_FS, "called file {} mode 0x{:X} size 0x{:08X}", name, mode, size); IPC::ResponseBuilder rb{ctx, 2}; - rb.Push(backend->CreateFile(name, size)); + rb.Push(backend.CreateFile(name, size)); } void DeleteFile(Kernel::HLERequestContext& ctx) { @@ -290,7 +306,7 @@ public: LOG_DEBUG(Service_FS, "called file {}", name); IPC::ResponseBuilder rb{ctx, 2}; - rb.Push(backend->DeleteFile(name)); + rb.Push(backend.DeleteFile(name)); } void CreateDirectory(Kernel::HLERequestContext& ctx) { @@ -302,7 +318,7 @@ public: LOG_DEBUG(Service_FS, "called directory {}", name); IPC::ResponseBuilder rb{ctx, 2}; - rb.Push(backend->CreateDirectory(name)); + rb.Push(backend.CreateDirectory(name)); } void RenameFile(Kernel::HLERequestContext& ctx) { @@ -320,7 +336,7 @@ public: LOG_DEBUG(Service_FS, "called file '{}' to file '{}'", src_name, dst_name); IPC::ResponseBuilder rb{ctx, 2}; - rb.Push(backend->RenameFile(src_name, dst_name)); + rb.Push(backend.RenameFile(src_name, dst_name)); } void OpenFile(Kernel::HLERequestContext& ctx) { @@ -333,14 +349,14 @@ public: LOG_DEBUG(Service_FS, "called file {} mode {}", name, static_cast<u32>(mode)); - auto result = backend->OpenFile(name, mode); + auto result = backend.OpenFile(name, mode); if (result.Failed()) { IPC::ResponseBuilder rb{ctx, 2}; rb.Push(result.Code()); return; } - auto file = std::move(result.Unwrap()); + IFile file(result.Unwrap()); IPC::ResponseBuilder rb{ctx, 2, 0, 1}; rb.Push(RESULT_SUCCESS); @@ -358,14 +374,14 @@ public: LOG_DEBUG(Service_FS, "called directory {} filter {}", name, filter_flags); - auto result = backend->OpenDirectory(name); + auto result = backend.OpenDirectory(name); if (result.Failed()) { IPC::ResponseBuilder rb{ctx, 2}; rb.Push(result.Code()); return; } - auto directory = std::move(result.Unwrap()); + IDirectory directory(result.Unwrap()); IPC::ResponseBuilder rb{ctx, 2, 0, 1}; rb.Push(RESULT_SUCCESS); @@ -380,7 +396,7 @@ public: LOG_DEBUG(Service_FS, "called file {}", name); - auto result = backend->GetEntryType(name); + auto result = backend.GetEntryType(name); if (result.Failed()) { IPC::ResponseBuilder rb{ctx, 2}; rb.Push(result.Code()); @@ -400,7 +416,7 @@ public: } private: - std::unique_ptr<FileSys::FileSystemBackend> backend; + VfsDirectoryServiceWrapper backend; }; FSP_SRV::FSP_SRV() : ServiceFramework("fsp-srv") { @@ -536,17 +552,19 @@ void FSP_SRV::MountSaveData(Kernel::HLERequestContext& ctx) { LOG_INFO(Service_FS, "called with unknown={:08X}", unk); auto save_struct = rp.PopRaw<FileSys::SaveDataDescriptor>(); - auto filesystem = OpenSaveData(space_id, save_struct); + auto dir = OpenSaveData(space_id, save_struct); - if (filesystem.Failed()) { + if (dir.Failed()) { IPC::ResponseBuilder rb{ctx, 2, 0, 0}; - rb.Push(ResultCode(ErrorModule::FS, FileSys::ErrCodes::SaveDataNotFound)); + rb.Push(ResultCode(ErrorModule::FS, FileSys::ErrCodes::TitleNotFound)); return; } + IFileSystem filesystem(std::move(dir.Unwrap())); + IPC::ResponseBuilder rb{ctx, 2, 0, 1}; rb.Push(RESULT_SUCCESS); - rb.PushIpcInterface<IFileSystem>(std::move(filesystem.Unwrap())); + rb.PushIpcInterface<IFileSystem>(std::move(filesystem)); } void FSP_SRV::GetGlobalAccessLogMode(Kernel::HLERequestContext& ctx) { @@ -569,18 +587,11 @@ void FSP_SRV::OpenDataStorageByCurrentProcess(Kernel::HLERequestContext& ctx) { return; } - auto storage = romfs.Unwrap()->OpenFile({}, {}); - - if (storage.Failed()) { - LOG_CRITICAL(Service_FS, "no storage interface available!"); - IPC::ResponseBuilder rb{ctx, 2}; - rb.Push(storage.Code()); - return; - } + IStorage storage(std::move(romfs.Unwrap())); IPC::ResponseBuilder rb{ctx, 2, 0, 1}; rb.Push(RESULT_SUCCESS); - rb.PushIpcInterface<IStorage>(std::move(storage.Unwrap())); + rb.PushIpcInterface<IStorage>(std::move(storage)); } void FSP_SRV::OpenRomStorage(Kernel::HLERequestContext& ctx) { @@ -591,33 +602,9 @@ void FSP_SRV::OpenRomStorage(Kernel::HLERequestContext& ctx) { LOG_DEBUG(Service_FS, "called with storage_id={:02X}, title_id={:016X}", static_cast<u8>(storage_id), title_id); - if (title_id != Core::System::GetInstance().CurrentProcess()->program_id) { - LOG_CRITICAL( - Service_FS, - "Attempting to access RomFS of another title id (current={:016X}, requested={:016X}).", - Core::System::GetInstance().CurrentProcess()->program_id, title_id); - } - auto romfs = OpenRomFS(title_id); - if (romfs.Failed()) { - LOG_CRITICAL(Service_FS, "no file system interface available!"); - IPC::ResponseBuilder rb{ctx, 2}; - rb.Push(ResultCode(ErrorModule::FS, FileSys::ErrCodes::RomFSNotFound)); - return; - } - - auto storage = romfs.Unwrap()->OpenFile({}, {}); - - if (storage.Failed()) { - LOG_CRITICAL(Service_FS, "no storage interface available!"); - IPC::ResponseBuilder rb{ctx, 2}; - rb.Push(storage.Code()); - return; - } - - IPC::ResponseBuilder rb{ctx, 2, 0, 1}; - rb.Push(RESULT_SUCCESS); - rb.PushIpcInterface<IStorage>(std::move(storage.Unwrap())); + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(ResultCode(ErrorModule::FS, FileSys::ErrCodes::TitleNotFound)); } } // namespace Service::FileSystem diff --git a/src/core/hle/service/filesystem/fsp_srv.h b/src/core/hle/service/filesystem/fsp_srv.h index 4653eee4e..07f99c93d 100644 --- a/src/core/hle/service/filesystem/fsp_srv.h +++ b/src/core/hle/service/filesystem/fsp_srv.h @@ -27,7 +27,7 @@ private: void OpenDataStorageByCurrentProcess(Kernel::HLERequestContext& ctx); void OpenRomStorage(Kernel::HLERequestContext& ctx); - std::unique_ptr<FileSys::FileSystemBackend> romfs; + FileSys::VirtualFile romfs; }; } // namespace Service::FileSystem diff --git a/src/core/loader/deconstructed_rom_directory.cpp b/src/core/loader/deconstructed_rom_directory.cpp index 0b11bf4f3..19b8667ba 100644 --- a/src/core/loader/deconstructed_rom_directory.cpp +++ b/src/core/loader/deconstructed_rom_directory.cpp @@ -4,11 +4,10 @@ #include <cinttypes> #include "common/common_funcs.h" -#include "common/common_paths.h" #include "common/file_util.h" #include "common/logging/log.h" #include "common/string_util.h" -#include "core/file_sys/romfs_factory.h" +#include "core/file_sys/content_archive.h" #include "core/gdbstub/gdbstub.h" #include "core/hle/kernel/process.h" #include "core/hle/kernel/resource_limit.h" @@ -47,55 +46,11 @@ static std::string FindRomFS(const std::string& directory) { return filepath_romfs; } -AppLoader_DeconstructedRomDirectory::AppLoader_DeconstructedRomDirectory(FileUtil::IOFile&& file, - std::string filepath) - : AppLoader(std::move(file)), filepath(std::move(filepath)) {} - -FileType AppLoader_DeconstructedRomDirectory::IdentifyType(FileUtil::IOFile& file, - const std::string& filepath) { - bool is_main_found{}; - bool is_npdm_found{}; - bool is_rtld_found{}; - bool is_sdk_found{}; - - const auto callback = [&](unsigned* num_entries_out, const std::string& directory, - const std::string& virtual_name) -> bool { - // Skip directories - std::string physical_name = directory + virtual_name; - if (FileUtil::IsDirectory(physical_name)) { - return true; - } - - // Verify filename - if (Common::ToLower(virtual_name) == "main") { - is_main_found = true; - } else if (Common::ToLower(virtual_name) == "main.npdm") { - is_npdm_found = true; - return true; - } else if (Common::ToLower(virtual_name) == "rtld") { - is_rtld_found = true; - } else if (Common::ToLower(virtual_name) == "sdk") { - is_sdk_found = true; - } else { - // Continue searching - return true; - } - - // Verify file is an NSO - FileUtil::IOFile file(physical_name, "rb"); - if (AppLoader_NSO::IdentifyType(file, physical_name) != FileType::NSO) { - return false; - } - - // We are done if we've found and verified all required NSOs - return !(is_main_found && is_npdm_found && is_rtld_found && is_sdk_found); - }; +AppLoader_DeconstructedRomDirectory::AppLoader_DeconstructedRomDirectory(FileSys::VirtualFile file) + : AppLoader(std::move(file)) {} - // Search the directory recursively, looking for the required modules - const std::string directory = filepath.substr(0, filepath.find_last_of("/\\")) + DIR_SEP; - FileUtil::ForeachDirectoryEntry(nullptr, directory, callback); - - if (is_main_found && is_npdm_found && is_rtld_found && is_sdk_found) { +FileType AppLoader_DeconstructedRomDirectory::IdentifyType(const FileSys::VirtualFile& file) { + if (FileSys::IsDirectoryExeFS(file->GetContainingDirectory())) { return FileType::DeconstructedRomDirectory; } @@ -107,14 +62,13 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load( if (is_loaded) { return ResultStatus::ErrorAlreadyLoaded; } - if (!file.IsOpen()) { - return ResultStatus::Error; - } - const std::string directory = filepath.substr(0, filepath.find_last_of("/\\")) + DIR_SEP; - const std::string npdm_path = directory + DIR_SEP + "main.npdm"; + const FileSys::VirtualDir dir = file->GetContainingDirectory(); + const FileSys::VirtualFile npdm = dir->GetFile("main.npdm"); + if (npdm == nullptr) + return ResultStatus::ErrorInvalidFormat; - ResultStatus result = metadata.Load(npdm_path); + ResultStatus result = metadata.Load(npdm); if (result != ResultStatus::Success) { return result; } @@ -129,9 +83,10 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load( VAddr next_load_addr{Memory::PROCESS_IMAGE_VADDR}; for (const auto& module : {"rtld", "main", "subsdk0", "subsdk1", "subsdk2", "subsdk3", "subsdk4", "subsdk5", "subsdk6", "subsdk7", "sdk"}) { - const std::string path = directory + DIR_SEP + module; const VAddr load_addr = next_load_addr; - next_load_addr = AppLoader_NSO::LoadModule(path, load_addr); + const FileSys::VirtualFile module_file = dir->GetFile(module); + if (module_file != nullptr) + next_load_addr = AppLoader_NSO::LoadModule(module_file, load_addr); if (next_load_addr) { LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", module, load_addr); // Register module with GDBStub @@ -150,10 +105,15 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load( metadata.GetMainThreadStackSize()); // Find the RomFS by searching for a ".romfs" file in this directory - filepath_romfs = FindRomFS(directory); + const auto& files = dir->GetFiles(); + const auto romfs_iter = + std::find_if(files.begin(), files.end(), [](const FileSys::VirtualFile& file) { + return file->GetName().find(".romfs") != std::string::npos; + }); // Register the RomFS if a ".romfs" file was found - if (!filepath_romfs.empty()) { + if (romfs_iter != files.end() && *romfs_iter != nullptr) { + romfs = *romfs_iter; Service::FileSystem::RegisterRomFS(std::make_unique<FileSys::RomFSFactory>(*this)); } @@ -161,29 +121,10 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load( return ResultStatus::Success; } -ResultStatus AppLoader_DeconstructedRomDirectory::ReadRomFS( - std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset, u64& size) { - - if (filepath_romfs.empty()) { - LOG_DEBUG(Loader, "No RomFS available"); +ResultStatus AppLoader_DeconstructedRomDirectory::ReadRomFS(FileSys::VirtualFile& dir) { + if (romfs == nullptr) return ResultStatus::ErrorNotUsed; - } - - // We reopen the file, to allow its position to be independent - romfs_file = std::make_shared<FileUtil::IOFile>(filepath_romfs, "rb"); - if (!romfs_file->IsOpen()) { - return ResultStatus::Error; - } - - offset = 0; - size = romfs_file->GetSize(); - - LOG_DEBUG(Loader, "RomFS offset: 0x{:016X}", offset); - LOG_DEBUG(Loader, "RomFS size: 0x{:016X}", size); - - // Reset read pointer - file.Seek(0, SEEK_SET); - + dir = romfs; return ResultStatus::Success; } diff --git a/src/core/loader/deconstructed_rom_directory.h b/src/core/loader/deconstructed_rom_directory.h index 23295d911..982a037f7 100644 --- a/src/core/loader/deconstructed_rom_directory.h +++ b/src/core/loader/deconstructed_rom_directory.h @@ -20,29 +20,26 @@ namespace Loader { */ class AppLoader_DeconstructedRomDirectory final : public AppLoader { public: - AppLoader_DeconstructedRomDirectory(FileUtil::IOFile&& file, std::string filepath); + explicit AppLoader_DeconstructedRomDirectory(FileSys::VirtualFile main_file); /** * Returns the type of the file - * @param file FileUtil::IOFile open file - * @param filepath Path of the file that we are opening. + * @param file std::shared_ptr<VfsFile> open file * @return FileType found, or FileType::Error if this loader doesn't know it */ - static FileType IdentifyType(FileUtil::IOFile& file, const std::string& filepath); + static FileType IdentifyType(const FileSys::VirtualFile& file); FileType GetFileType() override { - return IdentifyType(file, filepath); + return IdentifyType(file); } ResultStatus Load(Kernel::SharedPtr<Kernel::Process>& process) override; - ResultStatus ReadRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset, - u64& size) override; + ResultStatus ReadRomFS(FileSys::VirtualFile& dir) override; private: - std::string filepath_romfs; - std::string filepath; FileSys::ProgramMetadata metadata; + FileSys::VirtualFile romfs; }; } // namespace Loader diff --git a/src/core/loader/elf.cpp b/src/core/loader/elf.cpp index b69e5c6ef..4bfd5f536 100644 --- a/src/core/loader/elf.cpp +++ b/src/core/loader/elf.cpp @@ -365,20 +365,17 @@ SectionID ElfReader::GetSectionByName(const char* name, int firstSection) const namespace Loader { -AppLoader_ELF::AppLoader_ELF(FileUtil::IOFile&& file, std::string filename) - : AppLoader(std::move(file)), filename(std::move(filename)) {} +AppLoader_ELF::AppLoader_ELF(FileSys::VirtualFile file) : AppLoader(std::move(file)) {} -FileType AppLoader_ELF::IdentifyType(FileUtil::IOFile& file, const std::string&) { +FileType AppLoader_ELF::IdentifyType(const FileSys::VirtualFile& file) { static constexpr u16 ELF_MACHINE_ARM{0x28}; u32 magic = 0; - file.Seek(0, SEEK_SET); - if (1 != file.ReadArray<u32>(&magic, 1)) + if (4 != file->ReadObject(&magic)) return FileType::Error; u16 machine = 0; - file.Seek(18, SEEK_SET); - if (1 != file.ReadArray<u16>(&machine, 1)) + if (2 != file->ReadObject(&machine, 18)) return FileType::Error; if (Common::MakeMagic('\x7f', 'E', 'L', 'F') == magic && ELF_MACHINE_ARM == machine) @@ -391,20 +388,13 @@ ResultStatus AppLoader_ELF::Load(Kernel::SharedPtr<Kernel::Process>& process) { if (is_loaded) return ResultStatus::ErrorAlreadyLoaded; - if (!file.IsOpen()) - return ResultStatus::Error; - - // Reset read pointer in case this file has been read before. - file.Seek(0, SEEK_SET); - - size_t size = file.GetSize(); - std::unique_ptr<u8[]> buffer(new u8[size]); - if (file.ReadBytes(&buffer[0], size) != size) + std::vector<u8> buffer = file->ReadAllBytes(); + if (buffer.size() != file->GetSize()) return ResultStatus::Error; ElfReader elf_reader(&buffer[0]); SharedPtr<CodeSet> codeset = elf_reader.LoadInto(Memory::PROCESS_IMAGE_VADDR); - codeset->name = filename; + codeset->name = file->GetName(); process->LoadModule(codeset, codeset->entrypoint); process->svc_access_mask.set(); diff --git a/src/core/loader/elf.h b/src/core/loader/elf.h index ee741a789..b8fb982d0 100644 --- a/src/core/loader/elf.h +++ b/src/core/loader/elf.h @@ -16,24 +16,20 @@ namespace Loader { /// Loads an ELF/AXF file class AppLoader_ELF final : public AppLoader { public: - AppLoader_ELF(FileUtil::IOFile&& file, std::string filename); + explicit AppLoader_ELF(FileSys::VirtualFile file); /** * Returns the type of the file - * @param file FileUtil::IOFile open file - * @param filepath Path of the file that we are opening. + * @param file std::shared_ptr<VfsFile> open file * @return FileType found, or FileType::Error if this loader doesn't know it */ - static FileType IdentifyType(FileUtil::IOFile& file, const std::string& filepath); + static FileType IdentifyType(const FileSys::VirtualFile& file); FileType GetFileType() override { - return IdentifyType(file, filename); + return IdentifyType(file); } ResultStatus Load(Kernel::SharedPtr<Kernel::Process>& process) override; - -private: - std::string filename; }; } // namespace Loader diff --git a/src/core/loader/loader.cpp b/src/core/loader/loader.cpp index 8831d8e83..1574345a1 100644 --- a/src/core/loader/loader.cpp +++ b/src/core/loader/loader.cpp @@ -6,6 +6,7 @@ #include <string> #include "common/logging/log.h" #include "common/string_util.h" +#include "core/file_sys/vfs_real.h" #include "core/hle/kernel/process.h" #include "core/loader/deconstructed_rom_directory.h" #include "core/loader/elf.h" @@ -21,11 +22,11 @@ const std::initializer_list<Kernel::AddressMapping> default_address_mappings = { {0x1F000000, 0x600000, false}, // entire VRAM }; -FileType IdentifyFile(FileUtil::IOFile& file, const std::string& filepath) { +FileType IdentifyFile(FileSys::VirtualFile file) { FileType type; #define CHECK_TYPE(loader) \ - type = AppLoader_##loader::IdentifyType(file, filepath); \ + type = AppLoader_##loader::IdentifyType(file); \ if (FileType::Error != type) \ return type; @@ -41,25 +42,22 @@ FileType IdentifyFile(FileUtil::IOFile& file, const std::string& filepath) { } FileType IdentifyFile(const std::string& file_name) { - FileUtil::IOFile file(file_name, "rb"); - if (!file.IsOpen()) { - LOG_ERROR(Loader, "Failed to load file {}", file_name); - return FileType::Unknown; - } - - return IdentifyFile(file, file_name); + return IdentifyFile(FileSys::VirtualFile(std::make_shared<FileSys::RealVfsFile>(file_name))); } -FileType GuessFromExtension(const std::string& extension_) { - std::string extension = Common::ToLower(extension_); +FileType GuessFromFilename(const std::string& name) { + if (name == "main") + return FileType::DeconstructedRomDirectory; - if (extension == ".elf") + const std::string extension = Common::ToLower(FileUtil::GetExtensionFromFilename(name)); + + if (extension == "elf") return FileType::ELF; - else if (extension == ".nro") + if (extension == "nro") return FileType::NRO; - else if (extension == ".nso") + if (extension == "nso") return FileType::NSO; - else if (extension == ".nca") + if (extension == "nca") return FileType::NCA; return FileType::Unknown; @@ -93,58 +91,47 @@ const char* GetFileTypeString(FileType type) { * @param filepath the file full path (with name) * @return std::unique_ptr<AppLoader> a pointer to a loader object; nullptr for unsupported type */ -static std::unique_ptr<AppLoader> GetFileLoader(FileUtil::IOFile&& file, FileType type, - const std::string& filename, - const std::string& filepath) { +static std::unique_ptr<AppLoader> GetFileLoader(FileSys::VirtualFile file, FileType type) { switch (type) { // Standard ELF file format. case FileType::ELF: - return std::make_unique<AppLoader_ELF>(std::move(file), filename); + return std::make_unique<AppLoader_ELF>(std::move(file)); // NX NSO file format. case FileType::NSO: - return std::make_unique<AppLoader_NSO>(std::move(file), filepath); + return std::make_unique<AppLoader_NSO>(std::move(file)); // NX NRO file format. case FileType::NRO: - return std::make_unique<AppLoader_NRO>(std::move(file), filepath); + return std::make_unique<AppLoader_NRO>(std::move(file)); // NX NCA file format. case FileType::NCA: - return std::make_unique<AppLoader_NCA>(std::move(file), filepath); + return std::make_unique<AppLoader_NCA>(std::move(file)); // NX deconstructed ROM directory. case FileType::DeconstructedRomDirectory: - return std::make_unique<AppLoader_DeconstructedRomDirectory>(std::move(file), filepath); + return std::make_unique<AppLoader_DeconstructedRomDirectory>(std::move(file)); default: return nullptr; } } -std::unique_ptr<AppLoader> GetLoader(const std::string& filename) { - FileUtil::IOFile file(filename, "rb"); - if (!file.IsOpen()) { - LOG_ERROR(Loader, "Failed to load file {}", filename); - return nullptr; - } - - std::string filename_filename, filename_extension; - Common::SplitPath(filename, nullptr, &filename_filename, &filename_extension); - - FileType type = IdentifyFile(file, filename); - FileType filename_type = GuessFromExtension(filename_extension); +std::unique_ptr<AppLoader> GetLoader(FileSys::VirtualFile file) { + FileType type = IdentifyFile(file); + FileType filename_type = GuessFromFilename(file->GetName()); if (type != filename_type) { - LOG_WARNING(Loader, "File {} has a different type than its extension.", filename); + LOG_WARNING(Loader, "File {} has a different type than its extension.", file->GetName()); if (FileType::Unknown == type) type = filename_type; } - LOG_DEBUG(Loader, "Loading file {} as {}...", filename, GetFileTypeString(type)); + LOG_DEBUG(Loader, "Loading file {} as {}...", file->GetName(), GetFileTypeString(type)); - return GetFileLoader(std::move(file), type, filename_filename, filename); + return GetFileLoader(std::move(file), type); } } // namespace Loader diff --git a/src/core/loader/loader.h b/src/core/loader/loader.h index b76f7b13d..1da9e8099 100644 --- a/src/core/loader/loader.h +++ b/src/core/loader/loader.h @@ -13,6 +13,7 @@ #include <boost/optional.hpp> #include "common/common_types.h" #include "common/file_util.h" +#include "core/file_sys/vfs.h" #include "core/hle/kernel/kernel.h" namespace Kernel { @@ -36,10 +37,9 @@ enum class FileType { /** * Identifies the type of a bootable file based on the magic value in its header. * @param file open file - * @param filepath Path of the file that we are opening. * @return FileType of file */ -FileType IdentifyFile(FileUtil::IOFile& file, const std::string& filepath); +FileType IdentifyFile(FileSys::VirtualFile file); /** * Identifies the type of a bootable file based on the magic value in its header. @@ -50,12 +50,12 @@ FileType IdentifyFile(FileUtil::IOFile& file, const std::string& filepath); FileType IdentifyFile(const std::string& file_name); /** - * Guess the type of a bootable file from its extension - * @param extension String extension of bootable file + * Guess the type of a bootable file from its name + * @param name String name of bootable file * @return FileType of file. Note: this will return FileType::Unknown if it is unable to determine * a filetype, and will never return FileType::Error. */ -FileType GuessFromExtension(const std::string& extension); +FileType GuessFromFilename(const std::string& name); /** * Convert a FileType into a string which can be displayed to the user. @@ -79,7 +79,7 @@ enum class ResultStatus { /// Interface for loading an application class AppLoader : NonCopyable { public: - AppLoader(FileUtil::IOFile&& file) : file(std::move(file)) {} + AppLoader(FileSys::VirtualFile file) : file(std::move(file)) {} virtual ~AppLoader() {} /** @@ -154,26 +154,20 @@ public: /** * Get the RomFS of the application * Since the RomFS can be huge, we return a file reference instead of copying to a buffer - * @param romfs_file The file containing the RomFS - * @param offset The offset the romfs begins on - * @param size The size of the romfs + * @param file The file containing the RomFS * @return ResultStatus result of function */ - virtual ResultStatus ReadRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset, - u64& size) { + virtual ResultStatus ReadRomFS(FileSys::VirtualFile& dir) { return ResultStatus::ErrorNotImplemented; } /** * Get the update RomFS of the application * Since the RomFS can be huge, we return a file reference instead of copying to a buffer - * @param romfs_file The file containing the RomFS - * @param offset The offset the romfs begins on - * @param size The size of the romfs + * @param file The file containing the RomFS * @return ResultStatus result of function */ - virtual ResultStatus ReadUpdateRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset, - u64& size) { + virtual ResultStatus ReadUpdateRomFS(FileSys::VirtualFile& file) { return ResultStatus::ErrorNotImplemented; } @@ -187,7 +181,7 @@ public: } protected: - FileUtil::IOFile file; + FileSys::VirtualFile file; bool is_loaded = false; }; @@ -202,6 +196,6 @@ extern const std::initializer_list<Kernel::AddressMapping> default_address_mappi * @param filename String filename of bootable file * @return best loader for this file */ -std::unique_ptr<AppLoader> GetLoader(const std::string& filename); +std::unique_ptr<AppLoader> GetLoader(FileSys::VirtualFile file); } // namespace Loader diff --git a/src/core/loader/nca.cpp b/src/core/loader/nca.cpp index b463f369c..e73b253b2 100644 --- a/src/core/loader/nca.cpp +++ b/src/core/loader/nca.cpp @@ -4,14 +4,13 @@ #include <vector> -#include "common/common_funcs.h" #include "common/file_util.h" #include "common/logging/log.h" #include "common/string_util.h" #include "common/swap.h" #include "core/core.h" +#include "core/file_sys/content_archive.h" #include "core/file_sys/program_metadata.h" -#include "core/file_sys/romfs_factory.h" #include "core/gdbstub/gdbstub.h" #include "core/hle/kernel/process.h" #include "core/hle/kernel/resource_limit.h" @@ -22,208 +21,15 @@ namespace Loader { -// Media offsets in headers are stored divided by 512. Mult. by this to get real offset. -constexpr u64 MEDIA_OFFSET_MULTIPLIER = 0x200; - -constexpr u64 SECTION_HEADER_SIZE = 0x200; -constexpr u64 SECTION_HEADER_OFFSET = 0x400; - -enum class NcaContentType : u8 { Program = 0, Meta = 1, Control = 2, Manual = 3, Data = 4 }; - -enum class NcaSectionFilesystemType : u8 { PFS0 = 0x2, ROMFS = 0x3 }; - -struct NcaSectionTableEntry { - u32_le media_offset; - u32_le media_end_offset; - INSERT_PADDING_BYTES(0x8); -}; -static_assert(sizeof(NcaSectionTableEntry) == 0x10, "NcaSectionTableEntry has incorrect size."); - -struct NcaHeader { - std::array<u8, 0x100> rsa_signature_1; - std::array<u8, 0x100> rsa_signature_2; - u32_le magic; - u8 is_system; - NcaContentType content_type; - u8 crypto_type; - u8 key_index; - u64_le size; - u64_le title_id; - INSERT_PADDING_BYTES(0x4); - u32_le sdk_version; - u8 crypto_type_2; - INSERT_PADDING_BYTES(15); - std::array<u8, 0x10> rights_id; - std::array<NcaSectionTableEntry, 0x4> section_tables; - std::array<std::array<u8, 0x20>, 0x4> hash_tables; - std::array<std::array<u8, 0x10>, 0x4> key_area; - INSERT_PADDING_BYTES(0xC0); -}; -static_assert(sizeof(NcaHeader) == 0x400, "NcaHeader has incorrect size."); - -struct NcaSectionHeaderBlock { - INSERT_PADDING_BYTES(3); - NcaSectionFilesystemType filesystem_type; - u8 crypto_type; - INSERT_PADDING_BYTES(3); -}; -static_assert(sizeof(NcaSectionHeaderBlock) == 0x8, "NcaSectionHeaderBlock has incorrect size."); - -struct Pfs0Superblock { - NcaSectionHeaderBlock header_block; - std::array<u8, 0x20> hash; - u32_le size; - INSERT_PADDING_BYTES(4); - u64_le hash_table_offset; - u64_le hash_table_size; - u64_le pfs0_header_offset; - u64_le pfs0_size; - INSERT_PADDING_BYTES(432); -}; -static_assert(sizeof(Pfs0Superblock) == 0x200, "Pfs0Superblock has incorrect size."); - -static bool IsValidNca(const NcaHeader& header) { - return header.magic == Common::MakeMagic('N', 'C', 'A', '2') || - header.magic == Common::MakeMagic('N', 'C', 'A', '3'); -} - -// TODO(DarkLordZach): Add support for encrypted. -class Nca final { - std::vector<FileSys::PartitionFilesystem> pfs; - std::vector<u64> pfs_offset; - - u64 romfs_offset = 0; - u64 romfs_size = 0; - - boost::optional<u8> exefs_id = boost::none; - - FileUtil::IOFile file; - std::string path; - - u64 GetExeFsFileOffset(const std::string& file_name) const; - u64 GetExeFsFileSize(const std::string& file_name) const; - -public: - ResultStatus Load(FileUtil::IOFile&& file, std::string path); - - FileSys::PartitionFilesystem GetPfs(u8 id) const; - - u64 GetRomFsOffset() const; - u64 GetRomFsSize() const; - - std::vector<u8> GetExeFsFile(const std::string& file_name); -}; - -static bool IsPfsExeFs(const FileSys::PartitionFilesystem& pfs) { - // According to switchbrew, an exefs must only contain these two files: - return pfs.GetFileSize("main") > 0 && pfs.GetFileSize("main.npdm") > 0; -} - -ResultStatus Nca::Load(FileUtil::IOFile&& in_file, std::string in_path) { - file = std::move(in_file); - path = in_path; - file.Seek(0, SEEK_SET); - std::array<u8, sizeof(NcaHeader)> header_array{}; - if (sizeof(NcaHeader) != file.ReadBytes(header_array.data(), sizeof(NcaHeader))) - LOG_CRITICAL(Loader, "File reader errored out during header read."); - - NcaHeader header{}; - std::memcpy(&header, header_array.data(), sizeof(NcaHeader)); - if (!IsValidNca(header)) - return ResultStatus::ErrorInvalidFormat; - - int number_sections = - std::count_if(std::begin(header.section_tables), std::end(header.section_tables), - [](NcaSectionTableEntry entry) { return entry.media_offset > 0; }); - - for (int i = 0; i < number_sections; ++i) { - // Seek to beginning of this section. - file.Seek(SECTION_HEADER_OFFSET + i * SECTION_HEADER_SIZE, SEEK_SET); - std::array<u8, sizeof(NcaSectionHeaderBlock)> array{}; - if (sizeof(NcaSectionHeaderBlock) != - file.ReadBytes(array.data(), sizeof(NcaSectionHeaderBlock))) - LOG_CRITICAL(Loader, "File reader errored out during header read."); - - NcaSectionHeaderBlock block{}; - std::memcpy(&block, array.data(), sizeof(NcaSectionHeaderBlock)); - - if (block.filesystem_type == NcaSectionFilesystemType::ROMFS) { - romfs_offset = header.section_tables[i].media_offset * MEDIA_OFFSET_MULTIPLIER; - romfs_size = - header.section_tables[i].media_end_offset * MEDIA_OFFSET_MULTIPLIER - romfs_offset; - } else if (block.filesystem_type == NcaSectionFilesystemType::PFS0) { - Pfs0Superblock sb{}; - // Seek back to beginning of this section. - file.Seek(SECTION_HEADER_OFFSET + i * SECTION_HEADER_SIZE, SEEK_SET); - if (sizeof(Pfs0Superblock) != file.ReadBytes(&sb, sizeof(Pfs0Superblock))) - LOG_CRITICAL(Loader, "File reader errored out during header read."); - - u64 offset = (static_cast<u64>(header.section_tables[i].media_offset) * - MEDIA_OFFSET_MULTIPLIER) + - sb.pfs0_header_offset; - FileSys::PartitionFilesystem npfs{}; - ResultStatus status = npfs.Load(path, offset); - - if (status == ResultStatus::Success) { - pfs.emplace_back(std::move(npfs)); - pfs_offset.emplace_back(offset); - } - } - } - - for (size_t i = 0; i < pfs.size(); ++i) { - if (IsPfsExeFs(pfs[i])) - exefs_id = i; - } - - return ResultStatus::Success; -} - -FileSys::PartitionFilesystem Nca::GetPfs(u8 id) const { - return pfs[id]; -} - -u64 Nca::GetExeFsFileOffset(const std::string& file_name) const { - if (exefs_id == boost::none) - return 0; - return pfs[*exefs_id].GetFileOffset(file_name) + pfs_offset[*exefs_id]; -} - -u64 Nca::GetExeFsFileSize(const std::string& file_name) const { - if (exefs_id == boost::none) - return 0; - return pfs[*exefs_id].GetFileSize(file_name); -} - -u64 Nca::GetRomFsOffset() const { - return romfs_offset; -} - -u64 Nca::GetRomFsSize() const { - return romfs_size; -} - -std::vector<u8> Nca::GetExeFsFile(const std::string& file_name) { - std::vector<u8> out(GetExeFsFileSize(file_name)); - file.Seek(GetExeFsFileOffset(file_name), SEEK_SET); - file.ReadBytes(out.data(), GetExeFsFileSize(file_name)); - return out; -} - -AppLoader_NCA::AppLoader_NCA(FileUtil::IOFile&& file, std::string filepath) - : AppLoader(std::move(file)), filepath(std::move(filepath)) {} - -FileType AppLoader_NCA::IdentifyType(FileUtil::IOFile& file, const std::string&) { - file.Seek(0, SEEK_SET); - std::array<u8, 0x400> header_enc_array{}; - if (0x400 != file.ReadBytes(header_enc_array.data(), 0x400)) - return FileType::Error; +AppLoader_NCA::AppLoader_NCA(FileSys::VirtualFile file) : AppLoader(file) {} +FileType AppLoader_NCA::IdentifyType(const FileSys::VirtualFile& file) { // TODO(DarkLordZach): Assuming everything is decrypted. Add crypto support. - NcaHeader header{}; - std::memcpy(&header, header_enc_array.data(), sizeof(NcaHeader)); + FileSys::NCAHeader header{}; + if (sizeof(FileSys::NCAHeader) != file->ReadObject(&header)) + return FileType::Error; - if (IsValidNca(header) && header.content_type == NcaContentType::Program) + if (IsValidNCA(header) && header.content_type == FileSys::NCAContentType::Program) return FileType::NCA; return FileType::Error; @@ -233,17 +39,22 @@ ResultStatus AppLoader_NCA::Load(Kernel::SharedPtr<Kernel::Process>& process) { if (is_loaded) { return ResultStatus::ErrorAlreadyLoaded; } - if (!file.IsOpen()) { - return ResultStatus::Error; - } - nca = std::make_unique<Nca>(); - ResultStatus result = nca->Load(std::move(file), filepath); + nca = std::make_unique<FileSys::NCA>(file); + ResultStatus result = nca->GetStatus(); if (result != ResultStatus::Success) { return result; } - result = metadata.Load(nca->GetExeFsFile("main.npdm")); + if (nca->GetType() != FileSys::NCAContentType::Program) + return ResultStatus::ErrorInvalidFormat; + + auto exefs = nca->GetExeFS(); + + if (exefs == nullptr) + return ResultStatus::ErrorInvalidFormat; + + result = metadata.Load(exefs->GetFile("main.npdm")); if (result != ResultStatus::Success) { return result; } @@ -258,7 +69,8 @@ ResultStatus AppLoader_NCA::Load(Kernel::SharedPtr<Kernel::Process>& process) { for (const auto& module : {"rtld", "main", "subsdk0", "subsdk1", "subsdk2", "subsdk3", "subsdk4", "subsdk5", "subsdk6", "subsdk7", "sdk"}) { const VAddr load_addr = next_load_addr; - next_load_addr = AppLoader_NSO::LoadModule(module, nca->GetExeFsFile(module), load_addr); + + next_load_addr = AppLoader_NSO::LoadModule(exefs->GetFile(module), load_addr); if (next_load_addr) { LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", module, load_addr); // Register module with GDBStub @@ -276,28 +88,18 @@ ResultStatus AppLoader_NCA::Load(Kernel::SharedPtr<Kernel::Process>& process) { process->Run(Memory::PROCESS_IMAGE_VADDR, metadata.GetMainThreadPriority(), metadata.GetMainThreadStackSize()); - if (nca->GetRomFsSize() > 0) + if (nca->GetRomFS() != nullptr && nca->GetRomFS()->GetSize() > 0) Service::FileSystem::RegisterRomFS(std::make_unique<FileSys::RomFSFactory>(*this)); is_loaded = true; + return ResultStatus::Success; } -ResultStatus AppLoader_NCA::ReadRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset, - u64& size) { - if (nca->GetRomFsSize() == 0) { - LOG_DEBUG(Loader, "No RomFS available"); +ResultStatus AppLoader_NCA::ReadRomFS(FileSys::VirtualFile& dir) { + if (nca == nullptr || nca->GetRomFS() == nullptr || nca->GetRomFS()->GetSize() == 0) return ResultStatus::ErrorNotUsed; - } - - romfs_file = std::make_shared<FileUtil::IOFile>(filepath, "rb"); - - offset = nca->GetRomFsOffset(); - size = nca->GetRomFsSize(); - - LOG_DEBUG(Loader, "RomFS offset: 0x{:016X}", offset); - LOG_DEBUG(Loader, "RomFS size: 0x{:016X}", size); - + dir = nca->GetRomFS(); return ResultStatus::Success; } diff --git a/src/core/loader/nca.h b/src/core/loader/nca.h index 3b6c451d0..52c95953a 100644 --- a/src/core/loader/nca.h +++ b/src/core/loader/nca.h @@ -6,44 +6,39 @@ #include <string> #include "common/common_types.h" -#include "core/file_sys/partition_filesystem.h" +#include "core/file_sys/content_archive.h" #include "core/file_sys/program_metadata.h" #include "core/hle/kernel/kernel.h" #include "core/loader/loader.h" namespace Loader { -class Nca; - /// Loads an NCA file class AppLoader_NCA final : public AppLoader { public: - AppLoader_NCA(FileUtil::IOFile&& file, std::string filepath); + explicit AppLoader_NCA(FileSys::VirtualFile file); /** * Returns the type of the file - * @param file FileUtil::IOFile open file - * @param filepath Path of the file that we are opening. + * @param file std::shared_ptr<VfsFile> open file * @return FileType found, or FileType::Error if this loader doesn't know it */ - static FileType IdentifyType(FileUtil::IOFile& file, const std::string& filepath); + static FileType IdentifyType(const FileSys::VirtualFile& file); FileType GetFileType() override { - return IdentifyType(file, filepath); + return IdentifyType(file); } ResultStatus Load(Kernel::SharedPtr<Kernel::Process>& process) override; - ResultStatus ReadRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset, - u64& size) override; + ResultStatus ReadRomFS(FileSys::VirtualFile& dir) override; ~AppLoader_NCA(); private: - std::string filepath; FileSys::ProgramMetadata metadata; - std::unique_ptr<Nca> nca; + std::unique_ptr<FileSys::NCA> nca; }; } // namespace Loader diff --git a/src/core/loader/nro.cpp b/src/core/loader/nro.cpp index 4d7c69a22..a007d3e6e 100644 --- a/src/core/loader/nro.cpp +++ b/src/core/loader/nro.cpp @@ -48,14 +48,12 @@ struct ModHeader { }; static_assert(sizeof(ModHeader) == 0x1c, "ModHeader has incorrect size."); -AppLoader_NRO::AppLoader_NRO(FileUtil::IOFile&& file, std::string filepath) - : AppLoader(std::move(file)), filepath(std::move(filepath)) {} +AppLoader_NRO::AppLoader_NRO(FileSys::VirtualFile file) : AppLoader(file) {} -FileType AppLoader_NRO::IdentifyType(FileUtil::IOFile& file, const std::string&) { +FileType AppLoader_NRO::IdentifyType(const FileSys::VirtualFile& file) { // Read NSO header NroHeader nro_header{}; - file.Seek(0, SEEK_SET); - if (sizeof(NroHeader) != file.ReadBytes(&nro_header, sizeof(NroHeader))) { + if (sizeof(NroHeader) != file->ReadObject(&nro_header)) { return FileType::Error; } if (nro_header.magic == Common::MakeMagic('N', 'R', 'O', '0')) { @@ -68,16 +66,10 @@ static constexpr u32 PageAlignSize(u32 size) { return (size + Memory::PAGE_MASK) & ~Memory::PAGE_MASK; } -bool AppLoader_NRO::LoadNro(const std::string& path, VAddr load_base) { - FileUtil::IOFile file(path, "rb"); - if (!file.IsOpen()) { - return {}; - } - +bool AppLoader_NRO::LoadNro(FileSys::VirtualFile file, VAddr load_base) { // Read NSO header NroHeader nro_header{}; - file.Seek(0, SEEK_SET); - if (sizeof(NroHeader) != file.ReadBytes(&nro_header, sizeof(NroHeader))) { + if (sizeof(NroHeader) != file->ReadObject(&nro_header)) { return {}; } if (nro_header.magic != Common::MakeMagic('N', 'R', 'O', '0')) { @@ -86,10 +78,9 @@ bool AppLoader_NRO::LoadNro(const std::string& path, VAddr load_base) { // Build program image Kernel::SharedPtr<Kernel::CodeSet> codeset = Kernel::CodeSet::Create(""); - std::vector<u8> program_image; - program_image.resize(PageAlignSize(nro_header.file_size)); - file.Seek(0, SEEK_SET); - file.ReadBytes(program_image.data(), nro_header.file_size); + std::vector<u8> program_image = file->ReadBytes(PageAlignSize(nro_header.file_size)); + if (program_image.size() != PageAlignSize(nro_header.file_size)) + return {}; for (int i = 0; i < nro_header.segments.size(); ++i) { codeset->segments[i].addr = nro_header.segments[i].offset; @@ -112,7 +103,7 @@ bool AppLoader_NRO::LoadNro(const std::string& path, VAddr load_base) { program_image.resize(static_cast<u32>(program_image.size()) + bss_size); // Load codeset for current process - codeset->name = path; + codeset->name = file->GetName(); codeset->memory = std::make_shared<std::vector<u8>>(std::move(program_image)); Core::CurrentProcess()->LoadModule(codeset, load_base); @@ -126,14 +117,11 @@ ResultStatus AppLoader_NRO::Load(Kernel::SharedPtr<Kernel::Process>& process) { if (is_loaded) { return ResultStatus::ErrorAlreadyLoaded; } - if (!file.IsOpen()) { - return ResultStatus::Error; - } // Load NRO static constexpr VAddr base_addr{Memory::PROCESS_IMAGE_VADDR}; - if (!LoadNro(filepath, base_addr)) { + if (!LoadNro(file, base_addr)) { return ResultStatus::ErrorInvalidFormat; } diff --git a/src/core/loader/nro.h b/src/core/loader/nro.h index 599adb253..2c03d06bb 100644 --- a/src/core/loader/nro.h +++ b/src/core/loader/nro.h @@ -15,26 +15,23 @@ namespace Loader { /// Loads an NRO file class AppLoader_NRO final : public AppLoader, Linker { public: - AppLoader_NRO(FileUtil::IOFile&& file, std::string filepath); + AppLoader_NRO(FileSys::VirtualFile file); /** * Returns the type of the file - * @param file FileUtil::IOFile open file - * @param filepath Path of the file that we are opening. + * @param file std::shared_ptr<VfsFile> open file * @return FileType found, or FileType::Error if this loader doesn't know it */ - static FileType IdentifyType(FileUtil::IOFile& file, const std::string& filepath); + static FileType IdentifyType(const FileSys::VirtualFile& file); FileType GetFileType() override { - return IdentifyType(file, filepath); + return IdentifyType(file); } ResultStatus Load(Kernel::SharedPtr<Kernel::Process>& process) override; private: - bool LoadNro(const std::string& path, VAddr load_base); - - std::string filepath; + bool LoadNro(FileSys::VirtualFile file, VAddr load_base); }; } // namespace Loader diff --git a/src/core/loader/nso.cpp b/src/core/loader/nso.cpp index 7b3d6b837..2beb85fbf 100644 --- a/src/core/loader/nso.cpp +++ b/src/core/loader/nso.cpp @@ -38,6 +38,7 @@ struct NsoHeader { std::array<u32_le, 3> segments_compressed_size; }; static_assert(sizeof(NsoHeader) == 0x6c, "NsoHeader has incorrect size."); +static_assert(std::is_trivially_copyable_v<NsoHeader>, "NsoHeader isn't trivially copyable."); struct ModHeader { u32_le magic; @@ -50,15 +51,11 @@ struct ModHeader { }; static_assert(sizeof(ModHeader) == 0x1c, "ModHeader has incorrect size."); -AppLoader_NSO::AppLoader_NSO(FileUtil::IOFile&& file, std::string filepath) - : AppLoader(std::move(file)), filepath(std::move(filepath)) {} +AppLoader_NSO::AppLoader_NSO(FileSys::VirtualFile file) : AppLoader(std::move(file)) {} -FileType AppLoader_NSO::IdentifyType(FileUtil::IOFile& file, const std::string&) { +FileType AppLoader_NSO::IdentifyType(const FileSys::VirtualFile& file) { u32 magic = 0; - file.Seek(0, SEEK_SET); - if (1 != file.ReadArray<u32>(&magic, 1)) { - return FileType::Error; - } + file->ReadObject(&magic); if (Common::MakeMagic('N', 'S', 'O', '0') == magic) { return FileType::NSO; @@ -99,13 +96,16 @@ static constexpr u32 PageAlignSize(u32 size) { return (size + Memory::PAGE_MASK) & ~Memory::PAGE_MASK; } -VAddr AppLoader_NSO::LoadModule(const std::string& name, const std::vector<u8>& file_data, - VAddr load_base) { - if (file_data.size() < sizeof(NsoHeader)) +VAddr AppLoader_NSO::LoadModule(FileSys::VirtualFile file, VAddr load_base) { + if (file == nullptr) return {}; - NsoHeader nso_header; - std::memcpy(&nso_header, file_data.data(), sizeof(NsoHeader)); + if (file->GetSize() < sizeof(NsoHeader)) + return {}; + + NsoHeader nso_header{}; + if (sizeof(NsoHeader) != file->ReadObject(&nso_header)) + return {}; if (nso_header.magic != Common::MakeMagic('N', 'S', 'O', '0')) return {}; @@ -114,9 +114,8 @@ VAddr AppLoader_NSO::LoadModule(const std::string& name, const std::vector<u8>& Kernel::SharedPtr<Kernel::CodeSet> codeset = Kernel::CodeSet::Create(""); std::vector<u8> program_image; for (int i = 0; i < nso_header.segments.size(); ++i) { - std::vector<u8> compressed_data(nso_header.segments_compressed_size[i]); - for (auto j = 0; j < nso_header.segments_compressed_size[i]; ++j) - compressed_data[j] = file_data[nso_header.segments[i].offset + j]; + const std::vector<u8> compressed_data = + file->ReadBytes(nso_header.segments_compressed_size[i], nso_header.segments[i].offset); std::vector<u8> data = DecompressSegment(compressed_data, nso_header.segments[i]); program_image.resize(nso_header.segments[i].location); program_image.insert(program_image.end(), data.begin(), data.end()); @@ -144,7 +143,7 @@ VAddr AppLoader_NSO::LoadModule(const std::string& name, const std::vector<u8>& program_image.resize(image_size); // Load codeset for current process - codeset->name = name; + codeset->name = file->GetName(); codeset->memory = std::make_shared<std::vector<u8>>(std::move(program_image)); Core::CurrentProcess()->LoadModule(codeset, load_base); @@ -154,72 +153,14 @@ VAddr AppLoader_NSO::LoadModule(const std::string& name, const std::vector<u8>& return load_base + image_size; } -VAddr AppLoader_NSO::LoadModule(const std::string& path, VAddr load_base) { - FileUtil::IOFile file(path, "rb"); - if (!file.IsOpen()) { - return {}; - } - - // Read NSO header - NsoHeader nso_header{}; - file.Seek(0, SEEK_SET); - if (sizeof(NsoHeader) != file.ReadBytes(&nso_header, sizeof(NsoHeader))) { - return {}; - } - if (nso_header.magic != Common::MakeMagic('N', 'S', 'O', '0')) { - return {}; - } - - // Build program image - Kernel::SharedPtr<Kernel::CodeSet> codeset = Kernel::CodeSet::Create(""); - std::vector<u8> program_image; - for (int i = 0; i < nso_header.segments.size(); ++i) { - std::vector<u8> data = - ReadSegment(file, nso_header.segments[i], nso_header.segments_compressed_size[i]); - program_image.resize(nso_header.segments[i].location); - program_image.insert(program_image.end(), data.begin(), data.end()); - codeset->segments[i].addr = nso_header.segments[i].location; - codeset->segments[i].offset = nso_header.segments[i].location; - codeset->segments[i].size = PageAlignSize(static_cast<u32>(data.size())); - } - - // MOD header pointer is at .text offset + 4 - u32 module_offset; - std::memcpy(&module_offset, program_image.data() + 4, sizeof(u32)); - - // Read MOD header - ModHeader mod_header{}; - // Default .bss to size in segment header if MOD0 section doesn't exist - u32 bss_size{PageAlignSize(nso_header.segments[2].bss_size)}; - std::memcpy(&mod_header, program_image.data() + module_offset, sizeof(ModHeader)); - const bool has_mod_header{mod_header.magic == Common::MakeMagic('M', 'O', 'D', '0')}; - if (has_mod_header) { - // Resize program image to include .bss section and page align each section - bss_size = PageAlignSize(mod_header.bss_end_offset - mod_header.bss_start_offset); - } - codeset->data.size += bss_size; - const u32 image_size{PageAlignSize(static_cast<u32>(program_image.size()) + bss_size)}; - program_image.resize(image_size); - - // Load codeset for current process - codeset->name = path; - codeset->memory = std::make_shared<std::vector<u8>>(std::move(program_image)); - Core::CurrentProcess()->LoadModule(codeset, load_base); - - return load_base + image_size; -} - ResultStatus AppLoader_NSO::Load(Kernel::SharedPtr<Kernel::Process>& process) { if (is_loaded) { return ResultStatus::ErrorAlreadyLoaded; } - if (!file.IsOpen()) { - return ResultStatus::Error; - } // Load module - LoadModule(filepath, Memory::PROCESS_IMAGE_VADDR); - LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", filepath, Memory::PROCESS_IMAGE_VADDR); + LoadModule(file, Memory::PROCESS_IMAGE_VADDR); + LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", file->GetName(), Memory::PROCESS_IMAGE_VADDR); process->svc_access_mask.set(); process->address_mappings = default_address_mappings; diff --git a/src/core/loader/nso.h b/src/core/loader/nso.h index 386f4d39a..3f7567500 100644 --- a/src/core/loader/nso.h +++ b/src/core/loader/nso.h @@ -15,29 +15,22 @@ namespace Loader { /// Loads an NSO file class AppLoader_NSO final : public AppLoader, Linker { public: - AppLoader_NSO(FileUtil::IOFile&& file, std::string filepath); + explicit AppLoader_NSO(FileSys::VirtualFile file); /** * Returns the type of the file - * @param file FileUtil::IOFile open file - * @param filepath Path of the file that we are opening. + * @param file std::shared_ptr<VfsFile> open file * @return FileType found, or FileType::Error if this loader doesn't know it */ - static FileType IdentifyType(FileUtil::IOFile& file, const std::string& filepath); + static FileType IdentifyType(const FileSys::VirtualFile& file); FileType GetFileType() override { - return IdentifyType(file, filepath); + return IdentifyType(file); } - static VAddr LoadModule(const std::string& name, const std::vector<u8>& file_data, - VAddr load_base); - - static VAddr LoadModule(const std::string& path, VAddr load_base); + static VAddr LoadModule(FileSys::VirtualFile file, VAddr load_base); ResultStatus Load(Kernel::SharedPtr<Kernel::Process>& process) override; - -private: - std::string filepath; }; } // namespace Loader diff --git a/src/tests/CMakeLists.txt b/src/tests/CMakeLists.txt index 12f1b93e0..6a0a62ecc 100644 --- a/src/tests/CMakeLists.txt +++ b/src/tests/CMakeLists.txt @@ -3,7 +3,6 @@ add_executable(tests core/arm/arm_test_common.cpp core/arm/arm_test_common.h core/core_timing.cpp - core/file_sys/path_parser.cpp core/memory/memory.cpp glad.cpp tests.cpp diff --git a/src/tests/core/file_sys/path_parser.cpp b/src/tests/core/file_sys/path_parser.cpp deleted file mode 100644 index 2b543e438..000000000 --- a/src/tests/core/file_sys/path_parser.cpp +++ /dev/null @@ -1,38 +0,0 @@ -// Copyright 2016 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include <catch.hpp> -#include "common/file_util.h" -#include "core/file_sys/path_parser.h" - -namespace FileSys { - -TEST_CASE("PathParser", "[core][file_sys]") { - REQUIRE(!PathParser(Path(std::vector<u8>{})).IsValid()); - REQUIRE(!PathParser(Path("a")).IsValid()); - REQUIRE(!PathParser(Path("/|")).IsValid()); - REQUIRE(PathParser(Path("/a")).IsValid()); - REQUIRE(!PathParser(Path("/a/b/../../c/../../d")).IsValid()); - REQUIRE(PathParser(Path("/a/b/../c/../../d")).IsValid()); - REQUIRE(PathParser(Path("/")).IsRootDirectory()); - REQUIRE(!PathParser(Path("/a")).IsRootDirectory()); - REQUIRE(PathParser(Path("/a/..")).IsRootDirectory()); -} - -TEST_CASE("PathParser - Host file system", "[core][file_sys]") { - std::string test_dir = "./test"; - FileUtil::CreateDir(test_dir); - FileUtil::CreateDir(test_dir + "/z"); - FileUtil::CreateEmptyFile(test_dir + "/a"); - - REQUIRE(PathParser(Path("/a")).GetHostStatus(test_dir) == PathParser::FileFound); - REQUIRE(PathParser(Path("/b")).GetHostStatus(test_dir) == PathParser::NotFound); - REQUIRE(PathParser(Path("/z")).GetHostStatus(test_dir) == PathParser::DirectoryFound); - REQUIRE(PathParser(Path("/a/c")).GetHostStatus(test_dir) == PathParser::FileInPath); - REQUIRE(PathParser(Path("/b/c")).GetHostStatus(test_dir) == PathParser::PathNotFound); - - FileUtil::DeleteDirRecursively(test_dir); -} - -} // namespace FileSys diff --git a/src/yuzu/game_list.cpp b/src/yuzu/game_list.cpp index 5f43eb177..352bc1839 100644 --- a/src/yuzu/game_list.cpp +++ b/src/yuzu/game_list.cpp @@ -12,6 +12,7 @@ #include "common/common_paths.h" #include "common/logging/log.h" #include "common/string_util.h" +#include "core/file_sys/vfs_real.h" #include "core/loader/loader.h" #include "game_list.h" #include "game_list_p.h" @@ -403,7 +404,8 @@ void GameListWorker::AddFstEntriesToGameList(const std::string& dir_path, unsign bool is_dir = FileUtil::IsDirectory(physical_name); if (!is_dir && (HasSupportedFileExtension(physical_name) || IsExtractedNCAMain(physical_name))) { - std::unique_ptr<Loader::AppLoader> loader = Loader::GetLoader(physical_name); + std::unique_ptr<Loader::AppLoader> loader = + Loader::GetLoader(std::make_shared<FileSys::RealVfsFile>(physical_name)); if (!loader) return true; |