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Merge pull request #192 from bunnei/fs-fix-paths 

FileSys: Updates backend code to use FileSys::Path and fixes binary path types.
This commit is contained in:
bunnei 2014-11-17 22:26:54 -05:00
parent 4ac4c3caf1 11641b5e79
commit b66859714b
12 changed files with 146 additions and 83 deletions
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35
src/core/file_sys/archive.h
View File

@ -74,6 +74,35 @@ public:
return type;
}
/**
* Gets the string representation of the path for debugging
* @return String representation of the path for debugging
*/
const std::string DebugStr() const {
switch (GetType()) {
case Invalid:
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() + ']';
default:
ERROR_LOG(KERNEL, "LowPathType cannot be converted to string!");
return {};
}
}
const std::string AsString() const {
switch (GetType()) {
case Char:
@ -153,21 +182,21 @@ public:
* @param mode Mode to open the file with
* @return Opened file, or nullptr
*/
virtual std::unique_ptr<File> OpenFile(const std::string& path, const Mode mode) const = 0;
virtual std::unique_ptr<File> OpenFile(const Path& path, const Mode mode) const = 0;
/**
* Create a directory specified by its path
* @param path Path relative to the archive
* @return Whether the directory could be created
*/
virtual bool CreateDirectory(const std::string& path) const = 0;
virtual bool CreateDirectory(const Path& path) const = 0;
/**
* Open a directory specified by its path
* @param path Path relative to the archive
* @return Opened directory, or nullptr
*/
virtual std::unique_ptr<Directory> OpenDirectory(const std::string& path) const = 0;
virtual std::unique_ptr<Directory> OpenDirectory(const Path& path) const = 0;
/**
* Read data from the archive

6
src/core/file_sys/archive_romfs.cpp
View File

@ -29,7 +29,7 @@ Archive_RomFS::~Archive_RomFS() {
* @param mode Mode to open the file with
* @return Opened file, or nullptr
*/
std::unique_ptr<File> Archive_RomFS::OpenFile(const std::string& path, const Mode mode) const {
std::unique_ptr<File> Archive_RomFS::OpenFile(const Path& path, const Mode mode) const {
return std::unique_ptr<File>(new File_RomFS);
}
@ -38,7 +38,7 @@ std::unique_ptr<File> Archive_RomFS::OpenFile(const std::string& path, const Mod
* @param path Path relative to the archive
* @return Whether the directory could be created
*/
bool Archive_RomFS::CreateDirectory(const std::string& path) const {
bool Archive_RomFS::CreateDirectory(const Path& path) const {
ERROR_LOG(FILESYS, "Attempted to create a directory in ROMFS.");
return false;
};
@ -48,7 +48,7 @@ bool Archive_RomFS::CreateDirectory(const std::string& path) const {
* @param path Path relative to the archive
* @return Opened directory, or nullptr
*/
std::unique_ptr<Directory> Archive_RomFS::OpenDirectory(const std::string& path) const {
std::unique_ptr<Directory> Archive_RomFS::OpenDirectory(const Path& path) const {
return std::unique_ptr<Directory>(new Directory_RomFS);
}

6
src/core/file_sys/archive_romfs.h
View File

@ -34,21 +34,21 @@ public:
* @param mode Mode to open the file with
* @return Opened file, or nullptr
*/
std::unique_ptr<File> OpenFile(const std::string& path, const Mode mode) const override;
std::unique_ptr<File> OpenFile(const Path& path, const Mode mode) const override;
/**
* Create a directory specified by its path
* @param path Path relative to the archive
* @return Whether the directory could be created
*/
bool CreateDirectory(const std::string& path) const override;
bool CreateDirectory(const Path& path) const override;
/**
* Open a directory specified by its path
* @param path Path relative to the archive
* @return Opened directory, or nullptr
*/
std::unique_ptr<Directory> OpenDirectory(const std::string& path) const override;
std::unique_ptr<Directory> OpenDirectory(const Path& path) const override;
/**
* Read data from the archive

12
src/core/file_sys/archive_sdmc.cpp
View File

@ -49,8 +49,8 @@ bool Archive_SDMC::Initialize() {
* @param mode Mode to open the file with
* @return Opened file, or nullptr
*/
std::unique_ptr<File> Archive_SDMC::OpenFile(const std::string& path, const Mode mode) const {
DEBUG_LOG(FILESYS, "called path=%s mode=%d", path.c_str(), mode);
std::unique_ptr<File> Archive_SDMC::OpenFile(const Path& path, const Mode mode) const {
DEBUG_LOG(FILESYS, "called path=%s mode=%d", path.DebugStr().c_str(), mode);
File_SDMC* file = new File_SDMC(this, path, mode);
if (!file->Open())
return nullptr;
@ -62,8 +62,8 @@ std::unique_ptr<File> Archive_SDMC::OpenFile(const std::string& path, const Mode
* @param path Path relative to the archive
* @return Whether the directory could be created
*/
bool Archive_SDMC::CreateDirectory(const std::string& path) const {
return FileUtil::CreateDir(GetMountPoint() + path);
bool Archive_SDMC::CreateDirectory(const Path& path) const {
return FileUtil::CreateDir(GetMountPoint() + path.AsString());
}
/**
@ -71,8 +71,8 @@ bool Archive_SDMC::CreateDirectory(const std::string& path) const {
* @param path Path relative to the archive
* @return Opened directory, or nullptr
*/
std::unique_ptr<Directory> Archive_SDMC::OpenDirectory(const std::string& path) const {
DEBUG_LOG(FILESYS, "called path=%s", path.c_str());
std::unique_ptr<Directory> Archive_SDMC::OpenDirectory(const Path& path) const {
DEBUG_LOG(FILESYS, "called path=%s", path.DebugStr().c_str());
Directory_SDMC* directory = new Directory_SDMC(this, path);
return std::unique_ptr<Directory>(directory);
}

6
src/core/file_sys/archive_sdmc.h
View File

@ -38,21 +38,21 @@ public:
* @param mode Mode to open the file with
* @return Opened file, or nullptr
*/
std::unique_ptr<File> OpenFile(const std::string& path, const Mode mode) const override;
std::unique_ptr<File> OpenFile(const Path& path, const Mode mode) const override;
/**
* Create a directory specified by its path
* @param path Path relative to the archive
* @return Whether the directory could be created
*/
bool CreateDirectory(const std::string& path) const override;
bool CreateDirectory(const Path& path) const override;
/**
* Open a directory specified by its path
* @param path Path relative to the archive
* @return Opened directory, or nullptr
*/
std::unique_ptr<Directory> OpenDirectory(const std::string& path) const override;
std::unique_ptr<Directory> OpenDirectory(const Path& path) const override;
/**
* Read data from the archive

4
src/core/file_sys/directory_sdmc.cpp
View File

@ -15,11 +15,11 @@
namespace FileSys {
Directory_SDMC::Directory_SDMC(const Archive_SDMC* archive, const std::string& path) {
Directory_SDMC::Directory_SDMC(const Archive_SDMC* archive, const Path& path) {
// TODO(Link Mauve): normalize path into an absolute path without "..", it can currently bypass
// the root directory we set while opening the archive.
// For example, opening /../../usr/bin can give the emulated program your installed programs.
std::string absolute_path = archive->GetMountPoint() + path;
std::string absolute_path = archive->GetMountPoint() + path.AsString();
FileUtil::ScanDirectoryTree(absolute_path, directory);
children_iterator = directory.children.begin();
}

2
src/core/file_sys/directory_sdmc.h
View File

@ -19,7 +19,7 @@ namespace FileSys {
class Directory_SDMC final : public Directory {
public:
Directory_SDMC();
Directory_SDMC(const Archive_SDMC* archive, const std::string& path);
Directory_SDMC(const Archive_SDMC* archive, const Path& path);
~Directory_SDMC() override;
/**

4
src/core/file_sys/file_sdmc.cpp
View File

@ -15,11 +15,11 @@
namespace FileSys {
File_SDMC::File_SDMC(const Archive_SDMC* archive, const std::string& path, const Mode mode) {
File_SDMC::File_SDMC(const Archive_SDMC* archive, const Path& path, const Mode mode) {
// TODO(Link Mauve): normalize path into an absolute path without "..", it can currently bypass
// the root directory we set while opening the archive.
// For example, opening /../../etc/passwd can give the emulated program your users list.
this->path = archive->GetMountPoint() + path;
this->path = archive->GetMountPoint() + path.AsString();
this->mode.hex = mode.hex;
}

2
src/core/file_sys/file_sdmc.h
View File

@ -19,7 +19,7 @@ namespace FileSys {
class File_SDMC final : public File {
public:
File_SDMC();
File_SDMC(const Archive_SDMC* archive, const std::string& path, const Mode mode);
File_SDMC(const Archive_SDMC* archive, const Path& path, const Mode mode);
~File_SDMC() override;
/**

31
src/core/hle/kernel/archive.cpp
View File

@ -99,7 +99,6 @@ public:
case FileCommand::Close:
{
DEBUG_LOG(KERNEL, "Close %s %s", GetTypeName().c_str(), GetName().c_str());
Kernel::g_object_pool.Destroy<Archive>(GetHandle());
CloseArchive(backend->GetIdCode());
break;
}
@ -129,12 +128,12 @@ public:
class File : public Object {
public:
std::string GetTypeName() const override { return "File"; }
std::string GetName() const override { return path; }
std::string GetName() const override { return path.DebugStr(); }
static Kernel::HandleType GetStaticHandleType() { return HandleType::File; }
Kernel::HandleType GetHandleType() const override { return HandleType::File; }
std::string path; ///< Path of the file
FileSys::Path path; ///< Path of the file
std::unique_ptr<FileSys::File> backend; ///< File backend interface
/**
@ -221,12 +220,12 @@ public:
class Directory : public Object {
public:
std::string GetTypeName() const override { return "Directory"; }
std::string GetName() const override { return path; }
std::string GetName() const override { return path.DebugStr(); }
static Kernel::HandleType GetStaticHandleType() { return HandleType::Directory; }
Kernel::HandleType GetHandleType() const override { return HandleType::Directory; }
std::string path; ///< Path of the directory
FileSys::Path path; ///< Path of the directory
std::unique_ptr<FileSys::Directory> backend; ///< File backend interface
/**
@ -304,8 +303,9 @@ Handle OpenArchive(FileSys::Archive::IdCode id_code) {
* @return Result of operation, 0 on success, otherwise error code
*/
Result CloseArchive(FileSys::Archive::IdCode id_code) {
if (1 != g_archive_map.erase(id_code)) {
ERROR_LOG(KERNEL, "Cannot close archive %d", (int) id_code);
auto itr = g_archive_map.find(id_code);
if (itr == g_archive_map.end()) {
ERROR_LOG(KERNEL, "Cannot close archive %d, does not exist!", (int)id_code);
return -1;
}
@ -366,7 +366,18 @@ Handle CreateArchive(FileSys::Archive* backend, const std::string& name) {
* @param mode Mode under which to open the File
* @return Opened File object
*/
Handle OpenFileFromArchive(Handle archive_handle, const std::string& path, const FileSys::Mode mode) {
Handle OpenFileFromArchive(Handle archive_handle, const FileSys::Path& path, const FileSys::Mode mode) {
// TODO(bunnei): Binary type files get a raw file pointer to the archive. Currently, we create
// the archive file handles at app loading, and then keep them persistent throughout execution.
// Archives file handles are just reused and not actually freed until emulation shut down.
// Verify if real hardware works this way, or if new handles are created each time
if (path.GetType() == FileSys::Binary)
// TODO(bunnei): FixMe - this is a hack to compensate for an incorrect FileSys backend
// design. While the functionally of this is OK, our implementation decision to separate
// normal files from archive file pointers is very likely wrong.
// See https://github.com/citra-emu/citra/issues/205
return archive_handle;
File* file = new File;
Handle handle = Kernel::g_object_pool.Create(file);
@ -386,7 +397,7 @@ Handle OpenFileFromArchive(Handle archive_handle, const std::string& path, const
* @param path Path to the Directory inside of the Archive
* @return Opened Directory object
*/
Result CreateDirectoryFromArchive(Handle archive_handle, const std::string& path) {
Result CreateDirectoryFromArchive(Handle archive_handle, const FileSys::Path& path) {
Archive* archive = Kernel::g_object_pool.GetFast<Archive>(archive_handle);
if (archive == nullptr)
return -1;
@ -401,7 +412,7 @@ Result CreateDirectoryFromArchive(Handle archive_handle, const std::string& path
* @param path Path to the Directory inside of the Archive
* @return Opened Directory object
*/
Handle OpenDirectoryFromArchive(Handle archive_handle, const std::string& path) {
Handle OpenDirectoryFromArchive(Handle archive_handle, const FileSys::Path& path) {
Directory* directory = new Directory;
Handle handle = Kernel::g_object_pool.Create(directory);

6
src/core/hle/kernel/archive.h
View File

@ -43,7 +43,7 @@ Handle CreateArchive(FileSys::Archive* backend, const std::string& name);
* @param mode Mode under which to open the File
* @return Opened File object
*/
Handle OpenFileFromArchive(Handle archive_handle, const std::string& name, const FileSys::Mode mode);
Handle OpenFileFromArchive(Handle archive_handle, const FileSys::Path& path, const FileSys::Mode mode);
/**
* Create a Directory from an Archive
@ -51,7 +51,7 @@ Handle OpenFileFromArchive(Handle archive_handle, const std::string& name, const
* @param path Path to the Directory inside of the Archive
* @return Whether creation of directory succeeded
*/
Result CreateDirectoryFromArchive(Handle archive_handle, const std::string& name);
Result CreateDirectoryFromArchive(Handle archive_handle, const FileSys::Path& path);
/**
* Open a Directory from an Archive
@ -59,7 +59,7 @@ Result CreateDirectoryFromArchive(Handle archive_handle, const std::string& name
* @param path Path to the Directory inside of the Archive
* @return Opened Directory object
*/
Handle OpenDirectoryFromArchive(Handle archive_handle, const std::string& name);
Handle OpenDirectoryFromArchive(Handle archive_handle, const FileSys::Path& path);
/// Initialize archives
void ArchiveInit();

109
src/core/hle/service/fs_user.cpp
View File

@ -28,6 +28,22 @@ void Initialize(Service::Interface* self) {
DEBUG_LOG(KERNEL, "called");
}
/**
* FS_User::OpenFile service function
* Inputs:
* 1 : Transaction
* 2 : Archive handle lower word
* 3 : Archive handle upper word
* 4 : Low path type
* 5 : Low path size
* 6 : Open flags
* 7 : Attributes
* 8 : (LowPathSize << 14) | 2
* 9 : Low path data pointer
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 3 : File handle
*/
void OpenFile(Service::Interface* self) {
u32* cmd_buff = Service::GetCommandBuffer();
@ -39,28 +55,16 @@ void OpenFile(Service::Interface* self) {
FileSys::Mode mode; mode.hex = cmd_buff[6];
u32 attributes = cmd_buff[7]; // TODO(Link Mauve): do something with those attributes.
u32 filename_ptr = cmd_buff[9];
FileSys::Path file_path(filename_type, filename_size, filename_ptr);
std::string file_string;
switch (file_path.GetType()) {
case FileSys::Char:
case FileSys::Wchar:
file_string = file_path.AsString();
break;
default:
WARN_LOG(KERNEL, "file LowPath type is currently unsupported; returning archive handle instead");
return;
}
DEBUG_LOG(KERNEL, "type=%d size=%d mode=%d attrs=%d data=%s",
filename_type, filename_size, mode, attributes, file_string.c_str());
DEBUG_LOG(KERNEL, "path=%s, mode=%d attrs=%d", file_path.DebugStr().c_str(), mode, attributes);
Handle handle = Kernel::OpenFileFromArchive(archive_handle, file_string, mode);
Handle handle = Kernel::OpenFileFromArchive(archive_handle, file_path, mode);
if (handle) {
cmd_buff[1] = 0;
cmd_buff[3] = handle;
} else {
ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_string.c_str());
ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_path.DebugStr().c_str());
// TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
cmd_buff[1] = -1;
}
@ -68,6 +72,25 @@ void OpenFile(Service::Interface* self) {
DEBUG_LOG(KERNEL, "called");
}
/**
* FS_User::OpenFileDirectly service function
* Inputs:
* 1 : Transaction
* 2 : Archive ID
* 3 : Archive low path type
* 4 : Archive low path size
* 5 : File low path type
* 6 : File low path size
* 7 : Flags
* 8 : Attributes
* 9 : (ArchiveLowPathSize << 14) | 0x802
* 10 : Archive low path
* 11 : (FileLowPathSize << 14) | 2
* 12 : File low path
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 3 : File handle
*/
void OpenFileDirectly(Service::Interface* self) {
u32* cmd_buff = Service::GetCommandBuffer();
@ -80,47 +103,33 @@ void OpenFileDirectly(Service::Interface* self) {
u32 attributes = cmd_buff[8]; // TODO(Link Mauve): do something with those attributes.
u32 archivename_ptr = cmd_buff[10];
u32 filename_ptr = cmd_buff[12];
FileSys::Path archive_path(archivename_type, archivename_size, archivename_ptr);
FileSys::Path file_path(filename_type, filename_size, filename_ptr);
DEBUG_LOG(KERNEL, "archive_type=%d archive_size=%d file_type=%d file_size=%d file_mode=%d file_attrs=%d",
archivename_type, archivename_size, filename_type, filename_size, mode, attributes);
DEBUG_LOG(KERNEL, "archive_path=%s file_path=%s, mode=%d attributes=%d",
archive_path.DebugStr().c_str(), file_path.DebugStr().c_str(), mode, attributes);
if (archivename_type != FileSys::Empty) {
if (archive_path.GetType() != FileSys::Empty) {
ERROR_LOG(KERNEL, "archive LowPath type other than empty is currently unsupported");
cmd_buff[1] = -1;
return;
}
// TODO(Link Mauve): check if we should even get a handle for the archive, and don't leak it.
// TODO(Link Mauve): Check if we should even get a handle for the archive, and don't leak it
Handle archive_handle = Kernel::OpenArchive(archive_id);
if (archive_handle) {
cmd_buff[1] = 0;
// cmd_buff[2] isn't used according to 3dmoo's implementation.
cmd_buff[3] = archive_handle;
} else {
if (!archive_handle) {
ERROR_LOG(KERNEL, "failed to get a handle for archive");
// TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
// TODO(Link Mauve): Check for the actual error values, this one was just chosen arbitrarily
cmd_buff[1] = -1;
return;
}
FileSys::Path file_path(filename_type, filename_size, filename_ptr);
std::string file_string;
switch (file_path.GetType()) {
case FileSys::Char:
case FileSys::Wchar:
file_string = file_path.AsString();
break;
default:
WARN_LOG(KERNEL, "file LowPath type is currently unsupported; returning archive handle instead");
return;
}
Handle handle = Kernel::OpenFileFromArchive(archive_handle, file_string, mode);
Handle handle = Kernel::OpenFileFromArchive(archive_handle, file_path, mode);
if (handle) {
cmd_buff[1] = 0;
cmd_buff[3] = handle;
} else {
ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_string.c_str());
ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_path.DebugStr().c_str());
// TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
cmd_buff[1] = -1;
}
@ -163,7 +172,7 @@ void CreateDirectory(Service::Interface* self) {
DEBUG_LOG(KERNEL, "type=%d size=%d data=%s", dirname_type, dirname_size, dir_string.c_str());
cmd_buff[1] = Kernel::CreateDirectoryFromArchive(archive_handle, dir_string);
cmd_buff[1] = Kernel::CreateDirectoryFromArchive(archive_handle, dir_path);
DEBUG_LOG(KERNEL, "called");
}
@ -192,7 +201,7 @@ void OpenDirectory(Service::Interface* self) {
DEBUG_LOG(KERNEL, "type=%d size=%d data=%s", dirname_type, dirname_size, dir_string.c_str());
Handle handle = Kernel::OpenDirectoryFromArchive(archive_handle, dir_string);
Handle handle = Kernel::OpenDirectoryFromArchive(archive_handle, dir_path);
if (handle) {
cmd_buff[1] = 0;
cmd_buff[3] = handle;
@ -205,6 +214,19 @@ void OpenDirectory(Service::Interface* self) {
DEBUG_LOG(KERNEL, "called");
}
/**
* FS_User::OpenArchive service function
* Inputs:
* 1 : Archive ID
* 2 : Archive low path type
* 3 : Archive low path size
* 4 : (LowPathSize << 14) | 2
* 5 : Archive low path
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 2 : Archive handle lower word (unused)
* 3 : Archive handle upper word (same as file handle)
*/
void OpenArchive(Service::Interface* self) {
u32* cmd_buff = Service::GetCommandBuffer();
@ -212,10 +234,11 @@ void OpenArchive(Service::Interface* self) {
auto archivename_type = static_cast<FileSys::LowPathType>(cmd_buff[2]);
u32 archivename_size = cmd_buff[3];
u32 archivename_ptr = cmd_buff[5];
FileSys::Path archive_path(archivename_type, archivename_size, archivename_ptr);
DEBUG_LOG(KERNEL, "type=%d size=%d", archivename_type, archivename_size);
DEBUG_LOG(KERNEL, "archive_path=%s", archive_path.DebugStr().c_str());
if (archivename_type != FileSys::Empty) {
if (archive_path.GetType() != FileSys::Empty) {
ERROR_LOG(KERNEL, "archive LowPath type other than empty is currently unsupported");
cmd_buff[1] = -1;
return;