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fs.mitm: start implementation of IFileSystem api.

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This commit is contained in:
Michael Scire 2019-03-22 08:49:10 -07:00
parent ca42a9daec
commit 634ce933be
8 changed files with 597 additions and 5 deletions
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38
stratosphere/ams_mitm/source/fs_mitm/fs_filesystem_types.hpp Normal file
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@ -0,0 +1,38 @@
/*
* Copyright (c) 2018 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
enum OpenMode {
OpenMode_Read = (1 << 0),
OpenMode_Write = (1 << 1),
OpenMode_Append = (1 << 2),
OpenMode_ReadWrite = OpenMode_Read | OpenMode_Write,
OpenMode_All = OpenMode_ReadWrite | OpenMode_Append,
};
enum DirectoryOpenMode {
DirectoryOpenMode_Directories = (1 << 0),
DirectoryOpenMode_Files = (1 << 1),
DirectoryOpenMode_All = (DirectoryOpenMode_Directories | DirectoryOpenMode_Files),
};
enum DirectoryEntryType {
DirectoryEntryType_Directory,
DirectoryEntryType_File,
};

85
stratosphere/ams_mitm/source/fs_mitm/fs_idirectory.hpp Normal file
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@ -0,0 +1,85 @@
/*
* Copyright (c) 2018 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <switch.h>
#include <stratosphere.hpp>
#include "fs_results.hpp"
enum FsIDirectoryCmd : u32 {
FsIDirectoryCmd_Read = 0,
FsIDirectoryCmd_GetEntryCount = 1,
};
class IDirectory {
public:
virtual ~IDirectory() {}
Result Read(uint64_t *out_count, FsDirectoryEntry *out_entries, uint64_t max_entries) {
if (out_count == nullptr) {
return ResultFsNullptrArgument;
}
if (max_entries == 0) {
*out_count = 0;
return 0;
}
if (out_entries == nullptr) {
return ResultFsNullptrArgument;
}
return ReadImpl(out_count, out_entries, max_entries);
}
Result GetEntryCount(uint64_t *count) {
if (count == nullptr) {
return ResultFsNullptrArgument;
}
return GetEntryCountImpl(count);
}
protected:
/* ...? */
private:
virtual Result ReadImpl(uint64_t *out_count, FsDirectoryEntry *out_entries, uint64_t max_entries) = 0;
virtual Result GetEntryCountImpl(uint64_t *count) = 0;
};
class IDirectoryInterface : public IServiceObject {
private:
std::unique_ptr<IDirectory> base_dir;
public:
IDirectoryInterface(IDirectory *d) : base_dir(d) {
/* ... */
};
IDirectoryInterface(std::unique_ptr<IDirectory> d) : base_dir(std::move(d)) {
/* ... */
};
private:
/* Actual command API. */
virtual Result Read(OutBuffer<FsDirectoryEntry> buffer, Out<u64> out_count) final {
return this->base_dir->Read(out_count.GetPointer(), buffer.buffer, buffer.num_elements);
};
virtual Result GetEntryCount(Out<u64> out_count) final {
return this->base_dir->GetEntryCount(out_count.GetPointer());
};
public:
DEFINE_SERVICE_DISPATCH_TABLE {
/* 1.0.0- */
MakeServiceCommandMeta<FsIDirectoryCmd_Read, &IDirectoryInterface::Read>(),
MakeServiceCommandMeta<FsIDirectoryCmd_GetEntryCount, &IDirectoryInterface::GetEntryCount>(),
};
};

142
stratosphere/ams_mitm/source/fs_mitm/fs_ifile.hpp Normal file
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@ -0,0 +1,142 @@
/*
* Copyright (c) 2018 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <switch.h>
#include <stratosphere.hpp>
#include "fs_results.hpp"
enum FsIFileCmd : u32 {
FsIFileCmd_Read = 0,
FsIFileCmd_Write = 1,
FsIFileCmd_Flush = 2,
FsIFileCmd_SetSize = 3,
FsIFileCmd_GetSize = 4,
FsIFileCmd_OperateRange = 5,
};
class IFile {
public:
virtual ~IFile() {}
Result Read(uint64_t *out, uint64_t offset, void *buffer, uint64_t size, uint32_t flags) {
(void)(flags);
if (out == nullptr) {
return ResultFsNullptrArgument;
}
if (size == 0) {
*out = 0;
return 0;
}
if (buffer == nullptr) {
return ResultFsNullptrArgument;
}
return ReadImpl(out, offset, buffer, size);
}
Result GetSize(uint64_t *out) {
if (out == nullptr) {
return ResultFsNullptrArgument;
}
return GetSizeImpl(out);
}
Result Flush() {
return FlushImpl();
}
Result Write(uint64_t offset, void *buffer, uint64_t size, uint32_t flags) {
if (size == 0) {
return 0;
}
if (buffer == nullptr) {
return ResultFsNullptrArgument;
}
const bool flush = (flags & 1) != 0;
return WriteImpl(offset, buffer, size, flush);
}
Result Write(uint64_t offset, void *buffer, uint64_t size) {
return Write(offset, buffer, size, false);
}
Result SetSize(uint64_t size) {
return SetSizeImpl(size);
}
Result OperateRange(u32 operation_type, u64 offset, u64 size, FsRangeInfo *out_range_info) {
if (operation_type != 3) {
return OperateRangeImpl(operation_type, offset, size, out_range_info);
}
return ResultFsUnsupportedOperation;
}
protected:
/* ...? */
private:
virtual Result ReadImpl(u64 *out, u64 offset, void *buffer, u64 size) = 0;
virtual Result GetSizeImpl(u64 *out) = 0;
virtual Result FlushImpl() = 0;
virtual Result WriteImpl(u64 offset, void *buffer, u64 size, bool flush) = 0;
virtual Result SetSizeImpl(u64 size) = 0;
virtual Result OperateRangeImpl(u32 operation_type, u64 offset, u64 size, FsRangeInfo *out_range_info) = 0;
};
class IFileInterface : public IServiceObject {
private:
std::unique_ptr<IFile> base_file;
public:
IFileInterface(IFile *f) : base_file(f) {
/* ... */
};
IFileInterface(std::unique_ptr<IFile> f) : base_file(std::move(f)) {
/* ... */
};
private:
/* Actual command API. */
virtual Result Read(OutBuffer<u8, BufferType_Type1> buffer, Out<u64> out_read, u64 offset, u64 size, u32 read_flags) final {
return this->base_file->Read(out_read.GetPointer(), offset, buffer.buffer, std::min(buffer.num_elements, size), read_flags);
};
virtual Result Write(InBuffer<u8, BufferType_Type1> buffer, u64 offset, u64 size, u32 write_flags) final {
return this->base_file->Write(offset, buffer.buffer, std::min(buffer.num_elements, size), write_flags);
};
virtual Result Flush() final {
return this->base_file->Flush();
};
virtual Result SetSize(u64 size) final {
return this->base_file->SetSize(size);
};
virtual Result GetSize(Out<u64> size) final {
return this->base_file->GetSize(size.GetPointer());
};
virtual Result OperateRange(Out<FsRangeInfo> range_info, u32 operation_type, u64 offset, u64 size) final {
return this->base_file->OperateRange(operation_type, offset, size, range_info.GetPointer());
};
public:
DEFINE_SERVICE_DISPATCH_TABLE {
/* 1.0.0- */
MakeServiceCommandMeta<FsIFileCmd_Read, &IFileInterface::Read>(),
MakeServiceCommandMeta<FsIFileCmd_Write, &IFileInterface::Write>(),
MakeServiceCommandMeta<FsIFileCmd_Flush, &IFileInterface::Flush>(),
MakeServiceCommandMeta<FsIFileCmd_SetSize, &IFileInterface::SetSize>(),
MakeServiceCommandMeta<FsIFileCmd_GetSize, &IFileInterface::GetSize>(),
/* 4.0.0- */
MakeServiceCommandMeta<FsIFileCmd_OperateRange, &IFileInterface::OperateRange, FirmwareVersion_400>(),
};
};

285
stratosphere/ams_mitm/source/fs_mitm/fs_ifilesystem.hpp Normal file
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@ -0,0 +1,285 @@
/*
* Copyright (c) 2018 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <switch.h>
#include <stratosphere.hpp>
#include "fs_results.hpp"
#include "fs_filesystem_types.hpp"
#include "fs_ifile.hpp"
#include "fs_idirectory.hpp"
enum FsIFileSystemCmd : u32 {
/* 1.0.0+ */
FsIFileSystemCmd_CreateFile = 0,
FsIFileSystemCmd_DeleteFile = 1,
FsIFileSystemCmd_CreateDirectory = 2,
FsIFileSystemCmd_DeleteDirectory = 3,
FsIFileSystemCmd_DeleteDirectoryRecursively = 4,
FsIFileSystemCmd_RenameFile = 5,
FsIFileSystemCmd_RenameDirectory = 6,
FsIFileSystemCmd_GetEntryType = 7,
FsIFileSystemCmd_OpenFile = 8,
FsIFileSystemCmd_OpenDirectory = 9,
FsIFileSystemCmd_Commit = 10,
FsIFileSystemCmd_GetFreeSpaceSize = 11,
FsIFileSystemCmd_GetTotalSpaceSize = 12,
/* 3.0.0+ */
FsIFileSystemCmd_CleanDirectoryRecursively = 13,
FsIFileSystemCmd_GetFileTimeStampRaw = 14,
/* 4.0.0+ */
FsIFileSystemCmd_QueryEntry = 15,
};
class IFile;
class IDirectory;
class IFileSystem {
public:
virtual ~IFileSystem() {}
Result CreateFile(const char *path, uint64_t size, int flags) {
if (path == nullptr) {
return ResultFsInvalidPath;
}
return CreateFileImpl(path, size, flags);
}
Result DeleteFile(const char *path) {
if (path == nullptr) {
return ResultFsInvalidPath;
}
return DeleteFileImpl(path);
}
Result CreateDirectory(const char *path) {
if (path == nullptr) {
return ResultFsInvalidPath;
}
return CreateDirectoryImpl(path);
}
Result DeleteDirectory(const char *path) {
if (path == nullptr) {
return ResultFsInvalidPath;
}
return DeleteDirectoryImpl(path);
}
Result DeleteDirectoryRecursively(const char *path) {
if (path == nullptr) {
return ResultFsInvalidPath;
}
return DeleteDirectoryRecursivelyImpl(path);
}
Result RenameFile(const char *old_path, const char *new_path) {
if (old_path == nullptr || new_path == nullptr) {
return ResultFsInvalidPath;
}
return RenameFileImpl(old_path, new_path);
}
Result RenameDirectory(const char *old_path, const char *new_path) {
if (old_path == nullptr || new_path == nullptr) {
return ResultFsInvalidPath;
}
return RenameDirectoryImpl(old_path, new_path);
}
Result GetEntryType(DirectoryEntryType *out, const char *path) {
if (out == nullptr) {
return ResultFsNullptrArgument;
}
if (path == nullptr) {
return ResultFsInvalidPath;
}
return GetEntryTypeImpl(out, path);
}
Result OpenFile(std::unique_ptr<IFile> *out_file, const char *path, OpenMode mode) {
if (path == nullptr) {
return ResultFsInvalidPath;
}
if (out_file == nullptr) {
return ResultFsNullptrArgument;
}
if (!(mode & OpenMode_ReadWrite)) {
return ResultFsInvalidArgument;
}
if (mode & ~OpenMode_All) {
return ResultFsInvalidArgument;
}
return OpenFileImpl(out_file, path, mode);
}
Result OpenDirectory(std::unique_ptr<IDirectory> *out_dir, const char *path, DirectoryOpenMode mode) {
if (path == nullptr) {
return ResultFsInvalidPath;
}
if (out_dir == nullptr) {
return ResultFsNullptrArgument;
}
if (!(mode & DirectoryOpenMode_All)) {
return ResultFsInvalidArgument;
}
if (mode & ~DirectoryOpenMode_All) {
return ResultFsInvalidArgument;
}
return OpenDirectory(out_dir, path, mode);
}
Result Commit() {
return CommitImpl();
}
Result GetFreeSpaceSize(uint64_t *out, const char *path) {
if (path == nullptr) {
return ResultFsInvalidPath;
}
if (out == nullptr) {
return ResultFsNullptrArgument;
}
return GetFreeSpaceSizeImpl(out, path);
}
Result GetTotalSpaceSize(uint64_t *out, const char *path) {
if (path == nullptr) {
return ResultFsInvalidPath;
}
if (out == nullptr) {
return ResultFsNullptrArgument;
}
return GetTotalSpaceSizeImpl(out, path);
}
Result CleanDirectoryRecursively(const char *path) {
if (path == nullptr) {
return ResultFsInvalidPath;
}
return CleanDirectoryRecursivelyImpl(path);
}
Result GetFileTimeStampRaw(FsTimeStampRaw *out, const char *path) {
if (path == nullptr) {
return ResultFsInvalidPath;
}
if (out == nullptr) {
return ResultFsNullptrArgument;
}
return GetFileTimeStampRawImpl(out, path);
}
Result QueryEntry(char *out, uint64_t out_size, const char *in, uint64_t in_size, int query, const char *path) {
if (path == nullptr) {
return ResultFsInvalidPath;
}
return QueryEntryImpl(out, out_size, in, in_size, query, path);
}
protected:
/* ...? */
private:
virtual Result CreateFileImpl(const char *path, uint64_t size, int flags) = 0;
virtual Result DeleteFileImpl(const char *path) = 0;
virtual Result CreateDirectoryImpl(const char *path) = 0;
virtual Result DeleteDirectoryImpl(const char *path) = 0;
virtual Result DeleteDirectoryRecursivelyImpl(const char *path) = 0;
virtual Result RenameFileImpl(const char *old_path, const char *new_path) = 0;
virtual Result RenameDirectoryImpl(const char *old_path, const char *new_path) = 0;
virtual Result GetEntryTypeImpl(DirectoryEntryType *out, const char *path) = 0;
virtual Result OpenFileImpl(std::unique_ptr<IFile> *out_file, const char *path, OpenMode mode) = 0;
virtual Result OpenDirectoryImpl(std::unique_ptr<IDirectory> *out_dir, const char *path, DirectoryOpenMode mode) = 0;
virtual Result CommitImpl() = 0;
virtual Result GetFreeSpaceSizeImpl(uint64_t *out, const char *path) {
(void)(out);
(void)(path);
return ResultFsNotImplemented;
}
virtual Result GetTotalSpaceSizeImpl(uint64_t *out, const char *path) {
(void)(out);
(void)(path);
return ResultFsNotImplemented;
}
virtual Result CleanDirectoryRecursivelyImpl(const char *path) = 0;
virtual Result GetFileTimeStampRawImpl(FsTimeStampRaw *out, const char *path) {
(void)(out);
(void)(path);
return ResultFsNotImplemented;
}
virtual Result QueryEntryImpl(char *out, uint64_t out_size, const char *in, uint64_t in_size, int query, const char *path) {
(void)(out);
(void)(out_size);
(void)(in);
(void)(in_size);
(void)(query);
(void)(path);
return ResultFsNotImplemented;
}
};
class IFileSystemInterface : public IServiceObject {
private:
std::unique_ptr<IFileSystem> base_fs;
public:
IFileSystemInterface(IFileSystem *fs) : base_fs(fs) {
/* ... */
};
IFileSystemInterface(std::unique_ptr<IFileSystem> fs) : base_fs(std::move(fs)) {
/* ... */
};
private:
/* Actual command API. */
/* TODO.... */
public:
DEFINE_SERVICE_DISPATCH_TABLE {
/* 1.0.0- */
/*
MakeServiceCommandMeta<FsIFileSystemCmd_CreateFile, &IFileSystemInterface::CreateFile>(),
MakeServiceCommandMeta<FsIFileSystemCmd_DeleteFile, &IFileSystemInterface::DeleteFile>(),
MakeServiceCommandMeta<FsIFileSystemCmd_CreateDirectory, &IFileSystemInterface::CreateDirectory>(),
MakeServiceCommandMeta<FsIFileSystemCmd_DeleteDirectory, &IFileSystemInterface::DeleteDirectory>(),
MakeServiceCommandMeta<FsIFileSystemCmd_DeleteDirectoryRecursively, &IFileSystemInterface::DeleteDirectoryRecursively>(),
MakeServiceCommandMeta<FsIFileSystemCmd_RenameFile, &IFileSystemInterface::RenameFile>(),
MakeServiceCommandMeta<FsIFileSystemCmd_RenameDirectory, &IFileSystemInterface::RenameDirectory>(),
MakeServiceCommandMeta<FsIFileSystemCmd_GetEntryType, &IFileSystemInterface::GetEntryType>(),
MakeServiceCommandMeta<FsIFileSystemCmd_OpenFile, &IFileSystemInterface::OpenFile>(),
MakeServiceCommandMeta<FsIFileSystemCmd_OpenDirectory, &IFileSystemInterface::OpenDirectory>(),
MakeServiceCommandMeta<FsIFileSystemCmd_Commit, &IFileSystemInterface::Commit>(),
MakeServiceCommandMeta<FsIFileSystemCmd_GetFreeSpaceSize, &IFileSystemInterface::GetFreeSpaceSize>(),
MakeServiceCommandMeta<FsIFileSystemCmd_GetTotalSpaceSize, &IFileSystemInterface::GetTotalSpaceSize>(),
*/
/* 3.0.0- */
/*
MakeServiceCommandMeta<FsIFileSystemCmd_CleanDirectoryRecursively, &IFileSystemInterface::CleanDirectoryRecursively, FirmwareVersion_300>(),
MakeServiceCommandMeta<FsIFileSystemCmd_GetFileTimeStampRaw, &IFileSystemInterface::GetFileTimeStampRaw, FirmwareVersion_300>(),
*/
/* 4.0.0- */
/* <FsIFileSystemCmd_QueryEntry, &IFileSystemInterface::QueryEntry, FirmwareVersion_400>(), */
};
};

14
stratosphere/ams_mitm/source/fs_mitm/fs_istorage.hpp
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@ -19,6 +19,8 @@
#include <stratosphere.hpp>
#include "fs_shim.h"
#include "fs_results.hpp"
#include "../debug.hpp"
enum FsIStorageCmd : u32 {
@ -33,13 +35,17 @@ enum FsIStorageCmd : u32 {
class IStorage {
public:
virtual ~IStorage();
virtual Result Read(void *buffer, size_t size, u64 offset) = 0;
virtual Result Write(void *buffer, size_t size, u64 offset) = 0;
virtual Result Flush() = 0;
virtual Result SetSize(u64 size) = 0;
virtual Result GetSize(u64 *out_size) = 0;
virtual Result OperateRange(u32 operation_type, u64 offset, u64 size, FsRangeInfo *out_range_info) = 0;
static inline bool IsRangeValid(uint64_t offset, uint64_t size, uint64_t total_size) {
return size <= total_size && offset <= total_size - size;
}
};
class IStorageInterface : public IServiceObject {
@ -49,7 +55,7 @@ class IStorageInterface : public IServiceObject {
IStorageInterface(IStorage *s) : base_storage(s) {
/* ... */
};
~IStorageInterface() {
delete base_storage;
};
@ -95,14 +101,14 @@ class IROStorage : public IStorage {
(void)(buffer);
(void)(offset);
(void)(size);
return 0x313802;
return ResultFsUnsupportedOperation;
};
virtual Result Flush() final {
return 0x0;
};
virtual Result SetSize(u64 size) final {
(void)(size);
return 0x313802;
return ResultFsUnsupportedOperation;
};
virtual Result GetSize(u64 *out_size) = 0;
virtual Result OperateRange(u32 operation_type, u64 offset, u64 size, FsRangeInfo *out_range_info) = 0;

32
stratosphere/ams_mitm/source/fs_mitm/fs_results.hpp Normal file
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@ -0,0 +1,32 @@
/*
* Copyright (c) 2018 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <switch.h>
static constexpr u32 Module_Fs = 2;
static constexpr Result ResultFsNotImplemented = MAKERESULT(Module_Fs, 3001);
static constexpr Result ResultFsOutOfRange = MAKERESULT(Module_Fs, 3005);
static constexpr Result ResultFsInvalidArgument = MAKERESULT(Module_Fs, 6001);
static constexpr Result ResultFsInvalidPath = MAKERESULT(Module_Fs, 6002);
static constexpr Result ResultFsInvalidOffset = MAKERESULT(Module_Fs, 6061);
static constexpr Result ResultFsInvalidSize = MAKERESULT(Module_Fs, 6062);
static constexpr Result ResultFsNullptrArgument = MAKERESULT(Module_Fs, 6063);
static constexpr Result ResultFsUnsupportedOperation = MAKERESULT(Module_Fs, 6300);

4
stratosphere/ams_mitm/source/fs_mitm/fsmitm_layeredrom.cpp
View file

@ -17,6 +17,8 @@
#include <switch.h>
#include <stratosphere.hpp>
#include "fs_results.hpp"
#include "fsmitm_layeredrom.hpp"
#include "../utils.hpp"
#include "../debug.hpp"
@ -54,7 +56,7 @@ Result LayeredRomFS::Read(void *buffer, size_t size, u64 offset) {
/* Validate size. */
u64 virt_size = (*this->p_source_infos)[this->p_source_infos->size() - 1].virtual_offset + (*this->p_source_infos)[this->p_source_infos->size() - 1].size;
if (offset >= virt_size) {
return 0x2F5A02;
return ResultFsInvalidOffset;
}
if (virt_size - offset < size) {
size = virt_size - offset;

2
stratosphere/ams_mitm/source/fs_mitm/fsmitm_service.cpp
View file

@ -28,6 +28,8 @@
#include "fsmitm_romstorage.hpp"
#include "fsmitm_layeredrom.hpp"
#include "fs_ifilesystem.hpp"
#include "../debug.hpp"
static HosMutex g_StorageCacheLock;