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Merge pull request #123 from bunnei/fs 

Initial implementation of RomFS filesystem and fsp-srv
This commit is contained in:
bunnei 2018-01-21 16:15:15 -05:00 committed by GitHub
parent 4c07dde472 5035d18baa
commit ab8525705b
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GPG Key ID: 4AEE18F83AFDEB23
25 changed files with 535 additions and 947 deletions
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24
src/core/CMakeLists.txt
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@ -6,21 +6,17 @@ add_library(core STATIC
core.h
core_timing.cpp
core_timing.h
file_sys/archive_backend.cpp
file_sys/archive_backend.h
file_sys/directory_backend.h
file_sys/disk_archive.cpp
file_sys/disk_archive.h
file_sys/directory.h
file_sys/errors.h
file_sys/file_backend.h
file_sys/ivfc_archive.cpp
file_sys/ivfc_archive.h
file_sys/filesystem.cpp
file_sys/filesystem.h
file_sys/path_parser.cpp
file_sys/path_parser.h
file_sys/savedata_archive.cpp
file_sys/savedata_archive.h
file_sys/title_metadata.cpp
file_sys/title_metadata.h
file_sys/romfs_factory.cpp
file_sys/romfs_factory.h
file_sys/romfs_filesystem.cpp
file_sys/romfs_filesystem.h
file_sys/storage.h
frontend/emu_window.cpp
frontend/emu_window.h
frontend/framebuffer_layout.cpp
@ -101,6 +97,10 @@ add_library(core STATIC
hle/service/audio/audio.h
hle/service/audio/audout_u.cpp
hle/service/audio/audout_u.h
hle/service/filesystem/filesystem.cpp
hle/service/filesystem/filesystem.h
hle/service/filesystem/fsp_srv.cpp
hle/service/filesystem/fsp_srv.h
hle/service/hid/hid.cpp
hle/service/hid/hid.h
hle/service/lm/lm.cpp

2
src/core/file_sys/directory_backend.h → src/core/file_sys/directory.h
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@ -1,4 +1,4 @@
// Copyright 2014 Citra Emulator Project
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.

99
src/core/file_sys/disk_archive.cpp
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@ -1,99 +0,0 @@
// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <cstdio>
#include <memory>
#include "common/common_types.h"
#include "common/file_util.h"
#include "common/logging/log.h"
#include "core/file_sys/disk_archive.h"
#include "core/file_sys/errors.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace
namespace FileSys {
ResultVal<size_t> DiskFile::Read(const u64 offset, const size_t length, u8* buffer) const {
if (!mode.read_flag)
return ERROR_INVALID_OPEN_FLAGS;
file->Seek(offset, SEEK_SET);
return MakeResult<size_t>(file->ReadBytes(buffer, length));
}
ResultVal<size_t> DiskFile::Write(const u64 offset, const size_t length, const bool flush,
const u8* buffer) const {
if (!mode.write_flag)
return ERROR_INVALID_OPEN_FLAGS;
file->Seek(offset, SEEK_SET);
size_t written = file->WriteBytes(buffer, length);
if (flush)
file->Flush();
return MakeResult<size_t>(written);
}
u64 DiskFile::GetSize() const {
return file->GetSize();
}
bool DiskFile::SetSize(const u64 size) const {
file->Resize(size);
file->Flush();
return true;
}
bool DiskFile::Close() const {
return file->Close();
}
////////////////////////////////////////////////////////////////////////////////////////////////////
DiskDirectory::DiskDirectory(const std::string& path) : directory() {
unsigned size = FileUtil::ScanDirectoryTree(path, directory);
directory.size = size;
directory.isDirectory = true;
children_iterator = directory.children.begin();
}
u32 DiskDirectory::Read(const u32 count, Entry* entries) {
u32 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 %s: size=%llu dir=%d", filename.c_str(), 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;
}
FileUtil::SplitFilename83(filename, entry.short_name, entry.extension);
entry.is_directory = file.isDirectory;
entry.is_hidden = (filename[0] == '.');
entry.is_read_only = 0;
entry.file_size = file.size;
// We emulate a SD card where the archive bit has never been cleared, as it would be on
// most user SD cards.
// Some homebrews (blargSNES for instance) are known to mistakenly use the archive bit as a
// file bit.
entry.is_archive = !file.isDirectory;
++entries_read;
++children_iterator;
}
return entries_read;
}
} // namespace FileSys

68
src/core/file_sys/disk_archive.h
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@ -1,68 +0,0 @@
// Copyright 2014 Citra Emulator Project
// 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/archive_backend.h"
#include "core/file_sys/directory_backend.h"
#include "core/file_sys/file_backend.h"
#include "core/hle/result.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace
namespace FileSys {
class DiskFile : public FileBackend {
public:
DiskFile(FileUtil::IOFile&& file_, const Mode& mode_)
: file(new FileUtil::IOFile(std::move(file_))) {
mode.hex = mode_.hex;
}
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;
void Flush() const override {
file->Flush();
}
protected:
Mode mode;
std::unique_ptr<FileUtil::IOFile> file;
};
class DiskDirectory : public DirectoryBackend {
public:
DiskDirectory(const std::string& path);
~DiskDirectory() override {
Close();
}
u32 Read(const u32 count, Entry* entries) override;
bool Close() const override {
return true;
}
protected:
u32 total_entries_in_directory;
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

4
src/core/file_sys/archive_backend.cpp → src/core/file_sys/filesystem.cpp
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@ -1,4 +1,4 @@
// Copyright 2015 Citra Emulator Project
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
@ -7,7 +7,7 @@
#include <sstream>
#include "common/logging/log.h"
#include "common/string_util.h"
#include "core/file_sys/archive_backend.h"
#include "core/file_sys/filesystem.h"
#include "core/memory.h"
namespace FileSys {

58
src/core/file_sys/archive_backend.h → src/core/file_sys/filesystem.h
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@ -1,4 +1,4 @@
// Copyright 2014 Citra Emulator Project
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
@ -15,7 +15,7 @@
namespace FileSys {
class FileBackend;
class StorageBackend;
class DirectoryBackend;
// Path string type
@ -71,9 +71,9 @@ struct ArchiveFormatInfo {
};
static_assert(std::is_pod<ArchiveFormatInfo>::value, "ArchiveFormatInfo is not POD");
class ArchiveBackend : NonCopyable {
class FileSystemBackend : NonCopyable {
public:
virtual ~ArchiveBackend() {}
virtual ~FileSystemBackend() {}
/**
* Get a descriptive name for the archive (e.g. "RomFS", "SaveData", etc.)
@ -81,13 +81,12 @@ public:
virtual std::string GetName() 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
* 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 ResultVal<std::unique_ptr<FileBackend>> OpenFile(const Path& path,
const Mode& mode) const = 0;
virtual ResultCode CreateFile(const Path& path, u64 size) const = 0;
/**
* Delete a file specified by its path
@ -97,12 +96,11 @@ public:
virtual ResultCode DeleteFile(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
* Create a directory specified by its path
* @param path Path relative to the archive
* @return Result of the operation
*/
virtual ResultCode RenameFile(const Path& src_path, const Path& dest_path) const = 0;
virtual ResultCode CreateDirectory(const Path& path) const = 0;
/**
* Delete a directory specified by its path
@ -119,19 +117,12 @@ public:
virtual ResultCode DeleteDirectoryRecursively(const Path& path) 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
* 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 CreateFile(const Path& path, u64 size) 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 Path& path) const = 0;
virtual ResultCode RenameFile(const Path& src_path, const Path& dest_path) const = 0;
/**
* Rename a Directory specified by its path
@ -141,6 +132,15 @@ public:
*/
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 Path& path,
const Mode& mode) const = 0;
/**
* Open a directory specified by its path
* @param path Path relative to the archive
@ -152,12 +152,12 @@ public:
* Get the free space
* @return The number of free bytes in the archive
*/
virtual u64 GetFreeBytes() const = 0;
virtual u64 GetFreeSpaceSize() const = 0;
};
class ArchiveFactory : NonCopyable {
class FileSystemFactory : NonCopyable {
public:
virtual ~ArchiveFactory() {}
virtual ~FileSystemFactory() {}
/**
* Get a descriptive name for the archive (e.g. "RomFS", "SaveData", etc.)
@ -169,7 +169,7 @@ public:
* @param path Path to the archive
* @return An ArchiveBackend corresponding operating specified archive path.
*/
virtual ResultVal<std::unique_ptr<ArchiveBackend>> Open(const Path& path) = 0;
virtual ResultVal<std::unique_ptr<FileSystemBackend>> Open(const Path& path) = 0;
/**
* Deletes the archive contents and then re-creates the base folder

2
src/core/file_sys/path_parser.h
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@ -6,7 +6,7 @@
#include <string>
#include <vector>
#include "core/file_sys/archive_backend.h"
#include "core/file_sys/filesystem.h"
namespace FileSys {

38
src/core/file_sys/romfs_factory.cpp Normal file
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@ -0,0 +1,38 @@
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <memory>
#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 {
RomFS_Factory::RomFS_Factory(Loader::AppLoader& app_loader) {
// Load the RomFS from the app
if (Loader::ResultStatus::Success != app_loader.ReadRomFS(romfs_file, data_offset, data_size)) {
LOG_ERROR(Service_FS, "Unable to read RomFS!");
}
}
ResultVal<std::unique_ptr<FileSystemBackend>> RomFS_Factory::Open(const Path& path) {
auto archive = std::make_unique<RomFS_FileSystem>(romfs_file, data_offset, data_size);
return MakeResult<std::unique_ptr<FileSystemBackend>>(std::move(archive));
}
ResultCode RomFS_Factory::Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info) {
LOG_ERROR(Service_FS, "Unimplemented Format archive %s", GetName().c_str());
// TODO(bunnei): Find the right error code for this
return ResultCode(-1);
}
ResultVal<ArchiveFormatInfo> RomFS_Factory::GetFormatInfo(const Path& path) const {
LOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive %s", GetName().c_str());
// TODO(bunnei): Find the right error code for this
return ResultCode(-1);
}
} // namespace FileSys

35
src/core/file_sys/romfs_factory.h Normal file
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@ -0,0 +1,35 @@
// 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 <vector>
#include "common/common_types.h"
#include "core/file_sys/filesystem.h"
#include "core/hle/result.h"
#include "core/loader/loader.h"
namespace FileSys {
/// File system interface to the RomFS archive
class RomFS_Factory final : public FileSystemFactory {
public:
explicit RomFS_Factory(Loader::AppLoader& app_loader);
std::string GetName() const override {
return "ArchiveFactory_RomFS";
}
ResultVal<std::unique_ptr<FileSystemBackend>> Open(const Path& path) override;
ResultCode Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info) override;
ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path) const override;
private:
std::shared_ptr<FileUtil::IOFile> romfs_file;
u64 data_offset;
u64 data_size;
};
} // namespace FileSys

72
src/core/file_sys/ivfc_archive.cpp → src/core/file_sys/romfs_filesystem.cpp
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@ -1,4 +1,4 @@
// Copyright 2014 Citra Emulator Project
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
@ -6,84 +6,80 @@
#include <memory>
#include "common/common_types.h"
#include "common/logging/log.h"
#include "core/file_sys/ivfc_archive.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace
#include "core/file_sys/romfs_filesystem.h"
namespace FileSys {
std::string IVFCArchive::GetName() const {
return "IVFC";
std::string RomFS_FileSystem::GetName() const {
return "RomFS";
}
ResultVal<std::unique_ptr<FileBackend>> IVFCArchive::OpenFile(const Path& path,
const Mode& mode) const {
return MakeResult<std::unique_ptr<FileBackend>>(
std::make_unique<IVFCFile>(romfs_file, data_offset, data_size));
ResultVal<std::unique_ptr<StorageBackend>> RomFS_FileSystem::OpenFile(const Path& path,
const Mode& mode) const {
return MakeResult<std::unique_ptr<StorageBackend>>(
std::make_unique<RomFS_Storage>(romfs_file, data_offset, data_size));
}
ResultCode IVFCArchive::DeleteFile(const Path& path) const {
LOG_CRITICAL(Service_FS, "Attempted to delete a file from an IVFC archive (%s).",
ResultCode RomFS_FileSystem::DeleteFile(const Path& path) const {
LOG_CRITICAL(Service_FS, "Attempted to delete a file from an ROMFS archive (%s).",
GetName().c_str());
// TODO(bunnei): Use correct error code
return ResultCode(-1);
}
ResultCode IVFCArchive::RenameFile(const Path& src_path, const Path& dest_path) const {
LOG_CRITICAL(Service_FS, "Attempted to rename a file within an IVFC archive (%s).",
ResultCode RomFS_FileSystem::RenameFile(const Path& src_path, const Path& dest_path) const {
LOG_CRITICAL(Service_FS, "Attempted to rename a file within an ROMFS archive (%s).",
GetName().c_str());
// TODO(wwylele): Use correct error code
return ResultCode(-1);
}
ResultCode IVFCArchive::DeleteDirectory(const Path& path) const {
LOG_CRITICAL(Service_FS, "Attempted to delete a directory from an IVFC archive (%s).",
ResultCode RomFS_FileSystem::DeleteDirectory(const Path& path) const {
LOG_CRITICAL(Service_FS, "Attempted to delete a directory from an ROMFS archive (%s).",
GetName().c_str());
// TODO(wwylele): Use correct error code
return ResultCode(-1);
}
ResultCode IVFCArchive::DeleteDirectoryRecursively(const Path& path) const {
LOG_CRITICAL(Service_FS, "Attempted to delete a directory from an IVFC archive (%s).",
ResultCode RomFS_FileSystem::DeleteDirectoryRecursively(const Path& path) const {
LOG_CRITICAL(Service_FS, "Attempted to delete a directory from an ROMFS archive (%s).",
GetName().c_str());
// TODO(wwylele): Use correct error code
return ResultCode(-1);
}
ResultCode IVFCArchive::CreateFile(const Path& path, u64 size) const {
LOG_CRITICAL(Service_FS, "Attempted to create a file in an IVFC archive (%s).",
ResultCode RomFS_FileSystem::CreateFile(const Path& path, u64 size) const {
LOG_CRITICAL(Service_FS, "Attempted to create a file in an ROMFS archive (%s).",
GetName().c_str());
// TODO(bunnei): Use correct error code
return ResultCode(-1);
}
ResultCode IVFCArchive::CreateDirectory(const Path& path) const {
LOG_CRITICAL(Service_FS, "Attempted to create a directory in an IVFC archive (%s).",
ResultCode RomFS_FileSystem::CreateDirectory(const Path& path) const {
LOG_CRITICAL(Service_FS, "Attempted to create a directory in an ROMFS archive (%s).",
GetName().c_str());
// TODO(wwylele): Use correct error code
return ResultCode(-1);
}
ResultCode IVFCArchive::RenameDirectory(const Path& src_path, const Path& dest_path) const {
LOG_CRITICAL(Service_FS, "Attempted to rename a file within an IVFC archive (%s).",
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 (%s).",
GetName().c_str());
// TODO(wwylele): Use correct error code
return ResultCode(-1);
}
ResultVal<std::unique_ptr<DirectoryBackend>> IVFCArchive::OpenDirectory(const Path& path) const {
return MakeResult<std::unique_ptr<DirectoryBackend>>(std::make_unique<IVFCDirectory>());
ResultVal<std::unique_ptr<DirectoryBackend>> RomFS_FileSystem::OpenDirectory(
const Path& path) const {
return MakeResult<std::unique_ptr<DirectoryBackend>>(std::make_unique<ROMFSDirectory>());
}
u64 IVFCArchive::GetFreeBytes() const {
LOG_WARNING(Service_FS, "Attempted to get the free space in an IVFC archive");
u64 RomFS_FileSystem::GetFreeSpaceSize() const {
LOG_WARNING(Service_FS, "Attempted to get the free space in an ROMFS archive");
return 0;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
ResultVal<size_t> IVFCFile::Read(const u64 offset, const size_t length, u8* buffer) const {
ResultVal<size_t> RomFS_Storage::Read(const u64 offset, const size_t length, u8* buffer) const {
LOG_TRACE(Service_FS, "called offset=%llu, length=%zu", offset, length);
romfs_file->Seek(data_offset + offset, SEEK_SET);
size_t read_length = (size_t)std::min((u64)length, data_size - offset);
@ -91,19 +87,19 @@ ResultVal<size_t> IVFCFile::Read(const u64 offset, const size_t length, u8* buff
return MakeResult<size_t>(romfs_file->ReadBytes(buffer, read_length));
}
ResultVal<size_t> IVFCFile::Write(const u64 offset, const size_t length, const bool flush,
const u8* buffer) const {
LOG_ERROR(Service_FS, "Attempted to write to IVFC file");
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 IVFCFile::GetSize() const {
u64 RomFS_Storage::GetSize() const {
return data_size;
}
bool IVFCFile::SetSize(const u64 size) const {
LOG_ERROR(Service_FS, "Attempted to set the size of an IVFC file");
bool RomFS_Storage::SetSize(const u64 size) const {
LOG_ERROR(Service_FS, "Attempted to set the size of an ROMFS file");
return false;
}

33
src/core/file_sys/ivfc_archive.h → src/core/file_sys/romfs_filesystem.h
View File

@ -1,4 +1,4 @@
// Copyright 2014 Citra Emulator Project
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
@ -10,30 +10,27 @@
#include <vector>
#include "common/common_types.h"
#include "common/file_util.h"
#include "core/file_sys/archive_backend.h"
#include "core/file_sys/directory_backend.h"
#include "core/file_sys/file_backend.h"
#include "core/file_sys/directory.h"
#include "core/file_sys/filesystem.h"
#include "core/file_sys/storage.h"
#include "core/hle/result.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace
namespace FileSys {
/**
* Helper which implements an interface to deal with IVFC images used in some archives
* This should be subclassed by concrete archive types, which will provide the
* input data (load the raw IVFC archive) and override any required methods
* 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 IVFCArchive : public ArchiveBackend {
class RomFS_FileSystem : public FileSystemBackend {
public:
IVFCArchive(std::shared_ptr<FileUtil::IOFile> file, u64 offset, u64 size)
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<FileBackend>> OpenFile(const Path& path,
const Mode& mode) const override;
ResultVal<std::unique_ptr<StorageBackend>> OpenFile(const Path& path,
const Mode& mode) const override;
ResultCode DeleteFile(const Path& path) const override;
ResultCode RenameFile(const Path& src_path, const Path& dest_path) const override;
ResultCode DeleteDirectory(const Path& path) const override;
@ -42,7 +39,7 @@ public:
ResultCode CreateDirectory(const Path& path) const override;
ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const override;
ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory(const Path& path) const override;
u64 GetFreeBytes() const override;
u64 GetFreeSpaceSize() const override;
protected:
std::shared_ptr<FileUtil::IOFile> romfs_file;
@ -50,9 +47,9 @@ protected:
u64 data_size;
};
class IVFCFile : public FileBackend {
class RomFS_Storage : public StorageBackend {
public:
IVFCFile(std::shared_ptr<FileUtil::IOFile> file, u64 offset, u64 size)
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;
@ -70,7 +67,7 @@ private:
u64 data_size;
};
class IVFCDirectory : public DirectoryBackend {
class ROMFSDirectory : public DirectoryBackend {
public:
u32 Read(const u32 count, Entry* entries) override {
return 0;

330
src/core/file_sys/savedata_archive.cpp
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@ -1,330 +0,0 @@
// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/file_util.h"
#include "core/file_sys/disk_archive.h"
#include "core/file_sys/errors.h"
#include "core/file_sys/path_parser.h"
#include "core/file_sys/savedata_archive.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace
namespace FileSys {
ResultVal<std::unique_ptr<FileBackend>> SaveDataArchive::OpenFile(const Path& path,
const Mode& mode) const {
LOG_DEBUG(Service_FS, "called path=%s mode=%01X", path.DebugStr().c_str(), mode.hex);
const PathParser path_parser(path);
if (!path_parser.IsValid()) {
LOG_ERROR(Service_FS, "Invalid path %s", path.DebugStr().c_str());
return ERROR_INVALID_PATH;
}
if (mode.hex == 0) {
LOG_ERROR(Service_FS, "Empty open mode");
return ERROR_UNSUPPORTED_OPEN_FLAGS;
}
if (mode.create_flag && !mode.write_flag) {
LOG_ERROR(Service_FS, "Create flag set but write flag not set");
return ERROR_UNSUPPORTED_OPEN_FLAGS;
}
const auto full_path = path_parser.BuildHostPath(mount_point);
switch (path_parser.GetHostStatus(mount_point)) {
case PathParser::InvalidMountPoint:
LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point %s", mount_point.c_str());
return ERROR_FILE_NOT_FOUND;
case PathParser::PathNotFound:
LOG_ERROR(Service_FS, "Path not found %s", full_path.c_str());
return ERROR_PATH_NOT_FOUND;
case PathParser::FileInPath:
case PathParser::DirectoryFound:
LOG_ERROR(Service_FS, "Unexpected file or directory in %s", full_path.c_str());
return ERROR_UNEXPECTED_FILE_OR_DIRECTORY;
case PathParser::NotFound:
if (!mode.create_flag) {
LOG_ERROR(Service_FS, "Non-existing file %s can't be open without mode create.",
full_path.c_str());
return ERROR_FILE_NOT_FOUND;
} else {
// Create the file
FileUtil::CreateEmptyFile(full_path);
}
break;
case PathParser::FileFound:
break; // Expected 'success' case
}
FileUtil::IOFile file(full_path, mode.write_flag ? "r+b" : "rb");
if (!file.IsOpen()) {
LOG_CRITICAL(Service_FS, "(unreachable) Unknown error opening %s", full_path.c_str());
return ERROR_FILE_NOT_FOUND;
}
auto disk_file = std::make_unique<DiskFile>(std::move(file), mode);
return MakeResult<std::unique_ptr<FileBackend>>(std::move(disk_file));
}
ResultCode SaveDataArchive::DeleteFile(const Path& path) const {
const PathParser path_parser(path);
if (!path_parser.IsValid()) {
LOG_ERROR(Service_FS, "Invalid path %s", path.DebugStr().c_str());
return ERROR_INVALID_PATH;
}
const auto full_path = path_parser.BuildHostPath(mount_point);
switch (path_parser.GetHostStatus(mount_point)) {
case PathParser::InvalidMountPoint:
LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point %s", mount_point.c_str());
return ERROR_FILE_NOT_FOUND;
case PathParser::PathNotFound:
LOG_ERROR(Service_FS, "Path not found %s", full_path.c_str());
return ERROR_PATH_NOT_FOUND;
case PathParser::FileInPath:
case PathParser::DirectoryFound:
case PathParser::NotFound:
LOG_ERROR(Service_FS, "File not found %s", full_path.c_str());
return ERROR_FILE_NOT_FOUND;
case PathParser::FileFound:
break; // Expected 'success' case
}
if (FileUtil::Delete(full_path)) {
return RESULT_SUCCESS;
}
LOG_CRITICAL(Service_FS, "(unreachable) Unknown error deleting %s", full_path.c_str());
return ERROR_FILE_NOT_FOUND;
}
ResultCode SaveDataArchive::RenameFile(const Path& src_path, const Path& dest_path) const {
const PathParser path_parser_src(src_path);
// TODO: Verify these return codes with HW
if (!path_parser_src.IsValid()) {
LOG_ERROR(Service_FS, "Invalid src path %s", src_path.DebugStr().c_str());
return ERROR_INVALID_PATH;
}
const PathParser path_parser_dest(dest_path);
if (!path_parser_dest.IsValid()) {
LOG_ERROR(Service_FS, "Invalid dest path %s", dest_path.DebugStr().c_str());
return ERROR_INVALID_PATH;
}
const auto src_path_full = path_parser_src.BuildHostPath(mount_point);
const auto dest_path_full = path_parser_dest.BuildHostPath(mount_point);
if (FileUtil::Rename(src_path_full, dest_path_full)) {
return RESULT_SUCCESS;
}
// TODO(bunnei): Use correct error code
return ResultCode(-1);
}
template <typename T>
static ResultCode DeleteDirectoryHelper(const Path& path, const std::string& mount_point,
T deleter) {
const PathParser path_parser(path);
if (!path_parser.IsValid()) {
LOG_ERROR(Service_FS, "Invalid path %s", path.DebugStr().c_str());
return ERROR_INVALID_PATH;
}
if (path_parser.IsRootDirectory())
return ERROR_DIRECTORY_NOT_EMPTY;
const auto full_path = path_parser.BuildHostPath(mount_point);
switch (path_parser.GetHostStatus(mount_point)) {
case PathParser::InvalidMountPoint:
LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point %s", mount_point.c_str());
return ERROR_PATH_NOT_FOUND;
case PathParser::PathNotFound:
case PathParser::NotFound:
LOG_ERROR(Service_FS, "Path not found %s", full_path.c_str());
return ERROR_PATH_NOT_FOUND;
case PathParser::FileInPath:
case PathParser::FileFound:
LOG_ERROR(Service_FS, "Unexpected file or directory %s", full_path.c_str());
return ERROR_UNEXPECTED_FILE_OR_DIRECTORY;
case PathParser::DirectoryFound:
break; // Expected 'success' case
}
if (deleter(full_path)) {
return RESULT_SUCCESS;
}
LOG_ERROR(Service_FS, "Directory not empty %s", full_path.c_str());
return ERROR_DIRECTORY_NOT_EMPTY;
}
ResultCode SaveDataArchive::DeleteDirectory(const Path& path) const {
return DeleteDirectoryHelper(path, mount_point, FileUtil::DeleteDir);
}
ResultCode SaveDataArchive::DeleteDirectoryRecursively(const Path& path) const {
return DeleteDirectoryHelper(
path, mount_point, [](const std::string& p) { return FileUtil::DeleteDirRecursively(p); });
}
ResultCode SaveDataArchive::CreateFile(const FileSys::Path& path, u64 size) const {
const PathParser path_parser(path);
if (!path_parser.IsValid()) {
LOG_ERROR(Service_FS, "Invalid path %s", path.DebugStr().c_str());
return ERROR_INVALID_PATH;
}
const auto full_path = path_parser.BuildHostPath(mount_point);
switch (path_parser.GetHostStatus(mount_point)) {
case PathParser::InvalidMountPoint:
LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point %s", mount_point.c_str());
return ERROR_FILE_NOT_FOUND;
case PathParser::PathNotFound:
LOG_ERROR(Service_FS, "Path not found %s", full_path.c_str());
return ERROR_PATH_NOT_FOUND;
case PathParser::FileInPath:
LOG_ERROR(Service_FS, "Unexpected file in path %s", full_path.c_str());
return ERROR_UNEXPECTED_FILE_OR_DIRECTORY;
case PathParser::DirectoryFound:
case PathParser::FileFound:
LOG_ERROR(Service_FS, "%s already exists", full_path.c_str());
return ERROR_FILE_ALREADY_EXISTS;
case PathParser::NotFound:
break; // Expected 'success' case
}
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(bunnei): Use correct error code
return ResultCode(-1);
}
ResultCode SaveDataArchive::CreateDirectory(const Path& path) const {
const PathParser path_parser(path);
if (!path_parser.IsValid()) {
LOG_ERROR(Service_FS, "Invalid path %s", path.DebugStr().c_str());
return ERROR_INVALID_PATH;
}
const auto full_path = path_parser.BuildHostPath(mount_point);
switch (path_parser.GetHostStatus(mount_point)) {
case PathParser::InvalidMountPoint:
LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point %s", mount_point.c_str());
return ERROR_FILE_NOT_FOUND;
case PathParser::PathNotFound:
LOG_ERROR(Service_FS, "Path not found %s", full_path.c_str());
return ERROR_PATH_NOT_FOUND;
case PathParser::FileInPath:
LOG_ERROR(Service_FS, "Unexpected file in path %s", full_path.c_str());
return ERROR_UNEXPECTED_FILE_OR_DIRECTORY;
case PathParser::DirectoryFound:
case PathParser::FileFound:
LOG_ERROR(Service_FS, "%s already exists", full_path.c_str());
return ERROR_DIRECTORY_ALREADY_EXISTS;
case PathParser::NotFound:
break; // Expected 'success' case
}
if (FileUtil::CreateDir(mount_point + path.AsString())) {
return RESULT_SUCCESS;
}
LOG_CRITICAL(Service_FS, "(unreachable) Unknown error creating %s", mount_point.c_str());
// TODO(bunnei): Use correct error code
return ResultCode(-1);
}
ResultCode SaveDataArchive::RenameDirectory(const Path& src_path, const Path& dest_path) const {
const PathParser path_parser_src(src_path);
// TODO: Verify these return codes with HW
if (!path_parser_src.IsValid()) {
LOG_ERROR(Service_FS, "Invalid src path %s", src_path.DebugStr().c_str());
return ERROR_INVALID_PATH;
}
const PathParser path_parser_dest(dest_path);
if (!path_parser_dest.IsValid()) {
LOG_ERROR(Service_FS, "Invalid dest path %s", dest_path.DebugStr().c_str());
return ERROR_INVALID_PATH;
}
const auto src_path_full = path_parser_src.BuildHostPath(mount_point);
const auto dest_path_full = path_parser_dest.BuildHostPath(mount_point);
if (FileUtil::Rename(src_path_full, dest_path_full)) {
return RESULT_SUCCESS;
}
// TODO(bunnei): Use correct error code
return ResultCode(-1);
}
ResultVal<std::unique_ptr<DirectoryBackend>> SaveDataArchive::OpenDirectory(
const Path& path) const {
const PathParser path_parser(path);
if (!path_parser.IsValid()) {
LOG_ERROR(Service_FS, "Invalid path %s", path.DebugStr().c_str());
return ERROR_INVALID_PATH;
}
const auto full_path = path_parser.BuildHostPath(mount_point);
switch (path_parser.GetHostStatus(mount_point)) {
case PathParser::InvalidMountPoint:
LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point %s", mount_point.c_str());
return ERROR_FILE_NOT_FOUND;
case PathParser::PathNotFound:
case PathParser::NotFound:
LOG_ERROR(Service_FS, "Path not found %s", full_path.c_str());
return ERROR_PATH_NOT_FOUND;
case PathParser::FileInPath:
case PathParser::FileFound:
LOG_ERROR(Service_FS, "Unexpected file in path %s", full_path.c_str());
return ERROR_UNEXPECTED_FILE_OR_DIRECTORY;
case PathParser::DirectoryFound:
break; // Expected 'success' case
}
auto directory = std::make_unique<DiskDirectory>(full_path);
return MakeResult<std::unique_ptr<DirectoryBackend>>(std::move(directory));
}
u64 SaveDataArchive::GetFreeBytes() const {
// TODO: Stubbed to return 1GiB
return 1024 * 1024 * 1024;
}
} // namespace FileSys

43
src/core/file_sys/savedata_archive.h
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@ -1,43 +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 "core/file_sys/archive_backend.h"
#include "core/file_sys/directory_backend.h"
#include "core/file_sys/file_backend.h"
#include "core/hle/result.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace
namespace FileSys {
/// Archive backend for general save data archive type (SaveData and SystemSaveData)
class SaveDataArchive : public ArchiveBackend {
public:
explicit SaveDataArchive(const std::string& mount_point_) : mount_point(mount_point_) {}
std::string GetName() const override {
return "SaveDataArchive: " + mount_point;
}
ResultVal<std::unique_ptr<FileBackend>> OpenFile(const Path& path,
const Mode& mode) const override;
ResultCode DeleteFile(const Path& path) const override;
ResultCode RenameFile(const Path& src_path, const Path& dest_path) const override;
ResultCode DeleteDirectory(const Path& path) const override;
ResultCode DeleteDirectoryRecursively(const Path& path) const override;
ResultCode CreateFile(const Path& path, u64 size) const override;
ResultCode CreateDirectory(const Path& path) const override;
ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const override;
ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory(const Path& path) const override;
u64 GetFreeBytes() const override;
protected:
std::string mount_point;
};
} // namespace FileSys

27
src/core/file_sys/file_backend.h → src/core/file_sys/storage.h
View File

@ -1,4 +1,4 @@
// Copyright 2014 Citra Emulator Project
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
@ -8,15 +8,12 @@
#include "common/common_types.h"
#include "core/hle/result.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace
namespace FileSys {
class FileBackend : NonCopyable {
class StorageBackend : NonCopyable {
public:
FileBackend() {}
virtual ~FileBackend() {}
StorageBackend() {}
virtual ~StorageBackend() {}
/**
* Read data from the file
@ -39,10 +36,9 @@ public:
const u8* buffer) const = 0;
/**
* Get the size of the file in bytes
* @return Size of the file in bytes
* Flushes the file
*/
virtual u64 GetSize() const = 0;
virtual void Flush() const = 0;
/**
* Set the size of the file in bytes
@ -51,16 +47,17 @@ public:
*/
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;
/**
* Flushes the file
*/
virtual void Flush() const = 0;
};
} // namespace FileSys

163
src/core/file_sys/title_metadata.cpp
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@ -1,163 +0,0 @@
// Copyright 2017 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <cinttypes>
#include "common/alignment.h"
#include "common/file_util.h"
#include "common/logging/log.h"
#include "core/file_sys/title_metadata.h"
#include "core/loader/loader.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace
namespace FileSys {
static u32 GetSignatureSize(u32 signature_type) {
switch (signature_type) {
case Rsa4096Sha1:
case Rsa4096Sha256:
return 0x200;
case Rsa2048Sha1:
case Rsa2048Sha256:
return 0x100;
case EllipticSha1:
case EcdsaSha256:
return 0x3C;
}
}
Loader::ResultStatus TitleMetadata::Load() {
FileUtil::IOFile file(filepath, "rb");
if (!file.IsOpen())
return Loader::ResultStatus::Error;
if (!file.ReadBytes(&signature_type, sizeof(u32_be)))
return Loader::ResultStatus::Error;
// Signature lengths are variable, and the body follows the signature
u32 signature_size = GetSignatureSize(signature_type);
tmd_signature.resize(signature_size);
if (!file.ReadBytes(&tmd_signature[0], signature_size))
return Loader::ResultStatus::Error;
// The TMD body start position is rounded to the nearest 0x40 after the signature
size_t body_start = Common::AlignUp(signature_size + sizeof(u32), 0x40);
file.Seek(body_start, SEEK_SET);
// Read our TMD body, then load the amount of ContentChunks specified
if (file.ReadBytes(&tmd_body, sizeof(TitleMetadata::Body)) != sizeof(TitleMetadata::Body))
return Loader::ResultStatus::Error;
for (u16 i = 0; i < tmd_body.content_count; i++) {
ContentChunk chunk;
if (file.ReadBytes(&chunk, sizeof(ContentChunk)) == sizeof(ContentChunk)) {
tmd_chunks.push_back(chunk);
} else {
LOG_ERROR(Service_FS, "Malformed TMD %s, failed to load content chunk index %u!",
filepath.c_str(), i);
return Loader::ResultStatus::ErrorInvalidFormat;
}
}
return Loader::ResultStatus::Success;
}
Loader::ResultStatus TitleMetadata::Save() {
UNIMPLEMENTED();
return Loader::ResultStatus::Success;
}
u64 TitleMetadata::GetTitleID() const {
return tmd_body.title_id;
}
u32 TitleMetadata::GetTitleType() const {
return tmd_body.title_type;
}
u16 TitleMetadata::GetTitleVersion() const {
return tmd_body.title_version;
}
u64 TitleMetadata::GetSystemVersion() const {
return tmd_body.system_version;
}
size_t TitleMetadata::GetContentCount() const {
return tmd_chunks.size();
}
u32 TitleMetadata::GetBootContentID() const {
return tmd_chunks[TMDContentIndex::Main].id;
}
u32 TitleMetadata::GetManualContentID() const {
return tmd_chunks[TMDContentIndex::Manual].id;
}
u32 TitleMetadata::GetDLPContentID() const {
return tmd_chunks[TMDContentIndex::DLP].id;
}
void TitleMetadata::SetTitleID(u64 title_id) {
tmd_body.title_id = title_id;
}
void TitleMetadata::SetTitleType(u32 type) {
tmd_body.title_type = type;
}
void TitleMetadata::SetTitleVersion(u16 version) {
tmd_body.title_version = version;
}
void TitleMetadata::SetSystemVersion(u64 version) {
tmd_body.system_version = version;
}
void TitleMetadata::AddContentChunk(const ContentChunk& chunk) {
tmd_chunks.push_back(chunk);
}
void TitleMetadata::Print() const {
LOG_DEBUG(Service_FS, "%s - %u chunks", filepath.c_str(),
static_cast<u32>(tmd_body.content_count));
// Content info describes ranges of content chunks
LOG_DEBUG(Service_FS, "Content info:");
for (size_t i = 0; i < tmd_body.contentinfo.size(); i++) {
if (tmd_body.contentinfo[i].command_count == 0)
break;
LOG_DEBUG(Service_FS, " Index %04X, Command Count %04X",
static_cast<u32>(tmd_body.contentinfo[i].index),
static_cast<u32>(tmd_body.contentinfo[i].command_count));
}
// For each content info, print their content chunk range
for (size_t i = 0; i < tmd_body.contentinfo.size(); i++) {
u16 index = static_cast<u16>(tmd_body.contentinfo[i].index);
u16 count = static_cast<u16>(tmd_body.contentinfo[i].command_count);
if (count == 0)
continue;
LOG_DEBUG(Service_FS, "Content chunks for content info index %zu:", i);
for (u16 j = index; j < index + count; j++) {
// Don't attempt to print content we don't have
if (j > tmd_body.content_count)
break;
const ContentChunk& chunk = tmd_chunks[j];
LOG_DEBUG(Service_FS, " ID %08X, Index %04X, Type %04x, Size %016" PRIX64,
static_cast<u32>(chunk.id), static_cast<u32>(chunk.index),
static_cast<u32>(chunk.type), static_cast<u64>(chunk.size));
}
}
}
} // namespace FileSys

126
src/core/file_sys/title_metadata.h
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@ -1,126 +0,0 @@
// Copyright 2017 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <string>
#include <vector>
#include "common/common_types.h"
#include "common/swap.h"
namespace Loader {
enum class ResultStatus;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace
namespace FileSys {
enum TMDSignatureType : u32 {
Rsa4096Sha1 = 0x10000,
Rsa2048Sha1 = 0x10001,
EllipticSha1 = 0x10002,
Rsa4096Sha256 = 0x10003,
Rsa2048Sha256 = 0x10004,
EcdsaSha256 = 0x10005
};
enum TMDContentTypeFlag : u16 {
Encrypted = 1 << 1,
Disc = 1 << 2,
CFM = 1 << 3,
Optional = 1 << 14,
Shared = 1 << 15
};
/**
* Helper which implements an interface to read and write Title Metadata (TMD) files.
* If a file path is provided and the file exists, it can be parsed and used, otherwise
* it must be created. The TMD file can then be interpreted, modified and/or saved.
*/
class TitleMetadata {
public:
struct ContentChunk {
u32_be id;
u16_be index;
u16_be type;
u64_be size;
std::array<u8, 0x20> hash;
};
static_assert(sizeof(ContentChunk) == 0x30, "TMD ContentChunk structure size is wrong");
struct ContentInfo {
u16_be index;
u16_be command_count;
std::array<u8, 0x20> hash;
};
static_assert(sizeof(ContentInfo) == 0x24, "TMD ContentInfo structure size is wrong");
#pragma pack(push, 1)
struct Body {
std::array<u8, 0x40> issuer;
u8 version;
u8 ca_crl_version;
u8 signer_crl_version;
u8 reserved;
u64_be system_version;
u64_be title_id;
u32_be title_type;
u16_be group_id;
u32_be savedata_size;
u32_be srl_private_savedata_size;
std::array<u8, 4> reserved_2;
u8 srl_flag;
std::array<u8, 0x31> reserved_3;
u32_be access_rights;
u16_be title_version;
u16_be content_count;
u16_be boot_content;
std::array<u8, 2> reserved_4;
std::array<u8, 0x20> contentinfo_hash;
std::array<ContentInfo, 64> contentinfo;
};
static_assert(sizeof(Body) == 0x9C4, "TMD body structure size is wrong");
#pragma pack(pop)
explicit TitleMetadata(std::string& path) : filepath(std::move(path)) {}
Loader::ResultStatus Load();
Loader::ResultStatus Save();
u64 GetTitleID() const;
u32 GetTitleType() const;
u16 GetTitleVersion() const;
u64 GetSystemVersion() const;
size_t GetContentCount() const;
u32 GetBootContentID() const;
u32 GetManualContentID() const;
u32 GetDLPContentID() const;
void SetTitleID(u64 title_id);
void SetTitleType(u32 type);
void SetTitleVersion(u16 version);
void SetSystemVersion(u64 version);
void AddContentChunk(const ContentChunk& chunk);
void Print() const;
private:
enum TMDContentIndex { Main = 0, Manual = 1, DLP = 2 };
Body tmd_body;
u32_be signature_type;
std::vector<u8> tmd_signature;
std::vector<ContentChunk> tmd_chunks;
std::string filepath;
};
} // namespace FileSys

5
src/core/hle/ipc_helpers.h
View File

@ -304,6 +304,11 @@ inline u64 RequestParser::Pop() {
return msw << 32 | lsw;
}
template <>
inline s64 RequestParser::Pop() {
return static_cast<s64>(Pop<u64>());
}
template <>
inline bool RequestParser::Pop() {
return Pop<u8>() != 0;

2
src/core/hle/result.h
View File

@ -19,6 +19,8 @@
enum class ErrorDescription : u32 {
Success = 0,
RemoteProcessDead = 301,
InvalidOffset = 6061,
InvalidLength = 6062,
};
/**

54
src/core/hle/service/filesystem/filesystem.cpp Normal file
View File

@ -0,0 +1,54 @@
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <boost/container/flat_map.hpp>
#include "core/file_sys/filesystem.h"
#include "core/hle/service/filesystem/filesystem.h"
#include "core/hle/service/filesystem/fsp_srv.h"
namespace Service {
namespace FileSystem {
/**
* Map of registered file systems, identified by type. Once an file system is registered here, it
* is never removed until UnregisterFileSystems is called.
*/
static boost::container::flat_map<Type, std::unique_ptr<FileSys::FileSystemFactory>> filesystem_map;
ResultCode RegisterFileSystem(std::unique_ptr<FileSys::FileSystemFactory>&& factory, Type type) {
auto result = filesystem_map.emplace(type, std::move(factory));
bool inserted = result.second;
ASSERT_MSG(inserted, "Tried to register more than one system with same id code");
auto& filesystem = result.first->second;
LOG_DEBUG(Service_FS, "Registered file system %s with id code 0x%08X",
filesystem->GetName().c_str(), static_cast<u32>(type));
return RESULT_SUCCESS;
}
ResultVal<std::unique_ptr<FileSys::FileSystemBackend>> OpenFileSystem(Type type,
FileSys::Path& path) {
LOG_TRACE(Service_FS, "Opening FileSystem with type=%d", type);
auto itr = filesystem_map.find(type);
if (itr == filesystem_map.end()) {
// TODO(bunnei): Find a better error code for this
return ResultCode(-1);
}
return itr->second->Open(path);
}
void UnregisterFileSystems() {
filesystem_map.clear();
}
void InstallInterfaces(SM::ServiceManager& service_manager) {
UnregisterFileSystems();
std::make_shared<FSP_SRV>()->InstallAsService(service_manager);
}
} // namespace FileSystem
} // namespace Service

50
src/core/hle/service/filesystem/filesystem.h Normal file
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@ -0,0 +1,50 @@
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include "common/common_types.h"
#include "core/hle/result.h"
namespace FileSys {
class FileSystemBackend;
class FileSystemFactory;
class Path;
} // namespace FileSys
namespace Service {
namespace SM {
class ServiceManager;
} // namespace SM
namespace FileSystem {
/// Supported FileSystem types
enum class Type {
RomFS = 1,
};
/**
* Registers a FileSystem, instances of which can later be opened using its IdCode.
* @param factory FileSystem backend interface to use
* @param type Type used to access this type of FileSystem
*/
ResultCode RegisterFileSystem(std::unique_ptr<FileSys::FileSystemFactory>&& factory, Type type);
/**
* Opens a file system
* @param type Type of the file system to open
* @param path Path to the file system, used with Binary paths
* @return FileSys::FileSystemBackend interface to the file system
*/
ResultVal<std::unique_ptr<FileSys::FileSystemBackend>> OpenFileSystem(Type type,
FileSys::Path& path);
/// Registers all Filesystem services with the specified service manager.
void InstallInterfaces(SM::ServiceManager& service_manager);
} // namespace FileSystem
} // namespace Service

138
src/core/hle/service/filesystem/fsp_srv.cpp Normal file
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@ -0,0 +1,138 @@
// 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/core.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/service/filesystem/filesystem.h"
#include "core/hle/service/filesystem/fsp_srv.h"
namespace Service {
namespace FileSystem {
class IStorage final : public ServiceFramework<IStorage> {
public:
IStorage(std::unique_ptr<FileSys::StorageBackend>&& 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"},
};
RegisterHandlers(functions);
}
private:
std::unique_ptr<FileSys::StorageBackend> backend;
void Read(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s64 offset = rp.Pop<s64>();
const s64 length = rp.Pop<s64>();
const auto& descriptor = ctx.BufferDescriptorB()[0];
LOG_DEBUG(Service_FS, "called, offset=0x%llx, length=0x%llx", offset, length);
// Error checking
ASSERT_MSG(length == descriptor.Size(), "unexpected size difference");
if (length < 0) {
IPC::RequestBuilder rb{ctx, 2};
rb.Push(ResultCode(ErrorModule::FS, ErrorDescription::InvalidLength));
return;
}
if (offset < 0) {
IPC::RequestBuilder rb{ctx, 2};
rb.Push(ResultCode(ErrorModule::FS, ErrorDescription::InvalidOffset));
return;
}
// 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::RequestBuilder rb{ctx, 2};
rb.Push(res.Code());
return;
}
// Write the data to memory
Memory::WriteBlock(descriptor.Address(), output.data(), descriptor.Size());
IPC::RequestBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
}
};
FSP_SRV::FSP_SRV() : ServiceFramework("fsp-srv") {
static const FunctionInfo functions[] = {
{1, &FSP_SRV::Initalize, "Initalize"},
{200, &FSP_SRV::OpenDataStorageByCurrentProcess, "OpenDataStorageByCurrentProcess"},
{203, &FSP_SRV::OpenRomStorage, "OpenRomStorage"},
{1005, &FSP_SRV::GetGlobalAccessLogMode, "GetGlobalAccessLogMode"},
};
RegisterHandlers(functions);
}
void FSP_SRV::TryLoadRomFS() {
if (romfs) {
return;
}
FileSys::Path unused;
auto res = OpenFileSystem(Type::RomFS, unused);
if (res.Succeeded()) {
romfs = std::move(res.Unwrap());
}
}
void FSP_SRV::Initalize(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_FS, "(STUBBED) called");
IPC::RequestBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
}
void FSP_SRV::GetGlobalAccessLogMode(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_FS, "(STUBBED) called");
IPC::RequestBuilder rb{ctx, 4};
rb.Push(RESULT_SUCCESS);
rb.Push<u32>(5);
}
void FSP_SRV::OpenDataStorageByCurrentProcess(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_FS, "called");
TryLoadRomFS();
if (!romfs) {
// TODO (bunnei): Find the right error code to use here
LOG_CRITICAL(Service_FS, "no file system interface available!");
IPC::RequestBuilder rb{ctx, 2};
rb.Push(ResultCode(-1));
return;
}
// Attempt to open a StorageBackend interface to the RomFS
auto storage = romfs->OpenFile({}, {});
if (storage.Failed()) {
LOG_CRITICAL(Service_FS, "no storage interface available!");
IPC::RequestBuilder rb{ctx, 2};
rb.Push(storage.Code());
return;
}
IPC::RequestBuilder rb{ctx, 2, 0, 0, 1};
rb.Push(RESULT_SUCCESS);
rb.PushIpcInterface<IStorage>(std::move(storage.Unwrap()));
}
void FSP_SRV::OpenRomStorage(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_FS, "(STUBBED) called, using OpenDataStorageByCurrentProcess");
OpenDataStorageByCurrentProcess(ctx);
}
} // namespace FileSystem
} // namespace Service

34
src/core/hle/service/filesystem/fsp_srv.h Normal file
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@ -0,0 +1,34 @@
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include "core/hle/service/service.h"
namespace FileSys {
class FileSystemBackend;
}
namespace Service {
namespace FileSystem {
class FSP_SRV final : public ServiceFramework<FSP_SRV> {
public:
explicit FSP_SRV();
~FSP_SRV() = default;
private:
void TryLoadRomFS();
void Initalize(Kernel::HLERequestContext& ctx);
void GetGlobalAccessLogMode(Kernel::HLERequestContext& ctx);
void OpenDataStorageByCurrentProcess(Kernel::HLERequestContext& ctx);
void OpenRomStorage(Kernel::HLERequestContext& ctx);
std::unique_ptr<FileSys::FileSystemBackend> romfs;
};
} // namespace FileSystem
} // namespace Service

2
src/core/hle/service/service.cpp
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@ -19,6 +19,7 @@
#include "core/hle/service/aoc/aoc_u.h"
#include "core/hle/service/apm/apm.h"
#include "core/hle/service/audio/audio.h"
#include "core/hle/service/filesystem/filesystem.h"
#include "core/hle/service/hid/hid.h"
#include "core/hle/service/lm/lm.h"
#include "core/hle/service/nvdrv/nvdrv.h"
@ -172,6 +173,7 @@ void Init() {
AOC::InstallInterfaces(*SM::g_service_manager);
APM::InstallInterfaces(*SM::g_service_manager);
Audio::InstallInterfaces(*SM::g_service_manager);
FileSystem::InstallInterfaces(*SM::g_service_manager);
HID::InstallInterfaces(*SM::g_service_manager);
LM::InstallInterfaces(*SM::g_service_manager);
Nvidia::InstallInterfaces(*SM::g_service_manager);

69
src/core/loader/deconstructed_rom_directory.cpp
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@ -7,14 +7,44 @@
#include "common/file_util.h"
#include "common/logging/log.h"
#include "common/string_util.h"
#include "core/file_sys/romfs_factory.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/resource_limit.h"
#include "core/hle/service/filesystem/filesystem.h"
#include "core/loader/deconstructed_rom_directory.h"
#include "core/loader/nso.h"
#include "core/memory.h"
namespace Loader {
static std::string FindRomFS(const std::string& directory) {
std::string filepath_romfs;
const auto callback = [&filepath_romfs](unsigned*, const std::string& directory,
const std::string& virtual_name) -> bool {
const std::string physical_name = directory + virtual_name;
if (FileUtil::IsDirectory(physical_name)) {
// Skip directories
return true;
}
// Verify extension
const std::string extension = physical_name.substr(physical_name.find_last_of(".") + 1);
if (Common::ToLower(extension) != "istorage") {
return true;
}
// Found it - we are done
filepath_romfs = std::move(physical_name);
return false;
};
// Search the specified directory recursively, looking for the first .istorage file, which will
// be used for the RomFS
FileUtil::ForeachDirectoryEntry(nullptr, directory, callback);
return filepath_romfs;
}
AppLoader_DeconstructedRomDirectory::AppLoader_DeconstructedRomDirectory(FileUtil::IOFile&& file,
std::string filepath)
: AppLoader(std::move(file)), filepath(std::move(filepath)) {}
@ -79,10 +109,10 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load(
// Load NSO modules
VAddr next_load_addr{Memory::PROCESS_IMAGE_VADDR};
const std::string directory = filepath.substr(0, filepath.find_last_of("/\\")) + DIR_SEP;
for (const auto& module : {"rtld", "main", "subsdk0", "subsdk1", "subsdk2", "subsdk3",
"subsdk4", "subsdk5", "subsdk6", "subsdk7", "sdk"}) {
const std::string path =
filepath.substr(0, filepath.find_last_of("/\\")) + DIR_SEP + module;
const std::string path = directory + DIR_SEP + module;
const VAddr load_addr = next_load_addr;
next_load_addr = AppLoader_NSO::LoadModule(path, load_addr);
if (next_load_addr) {
@ -98,8 +128,43 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load(
Kernel::ResourceLimit::GetForCategory(Kernel::ResourceLimitCategory::APPLICATION);
process->Run(Memory::PROCESS_IMAGE_VADDR, 48, Kernel::DEFAULT_STACK_SIZE);
// Find the RomFS by searching for a ".istorage" file in this directory
filepath_romfs = FindRomFS(directory);
// Register the RomFS if a ".istorage" file was found
if (!filepath_romfs.empty()) {
Service::FileSystem::RegisterFileSystem(std::make_unique<FileSys::RomFS_Factory>(*this),
Service::FileSystem::Type::RomFS);
}
is_loaded = true;
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");
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%08X", offset);
LOG_DEBUG(Loader, "RomFS size: 0x%08X", size);
// Reset read pointer
file.Seek(0, SEEK_SET);
return ResultStatus::Success;
}
} // namespace Loader

4
src/core/loader/deconstructed_rom_directory.h
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@ -35,7 +35,11 @@ public:
ResultStatus Load(Kernel::SharedPtr<Kernel::Process>& process) override;
ResultStatus ReadRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset,
u64& size) override;
private:
std::string filepath_romfs;
std::string filepath;
};