// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include <string>
#include "common/common_types.h"
#include "core/file_sys/archive_backend.h"
#include "core/hle/kernel/server_session.h"
#include "core/hle/result.h"
namespace FileSys {
class DirectoryBackend;
class FileBackend;
}
/// The unique system identifier hash, also known as ID0
static constexpr char SYSTEM_ID[]{"00000000000000000000000000000000"};
/// The scrambled SD card CID, also known as ID1
static constexpr char SDCARD_ID[]{"00000000000000000000000000000000"};
namespace Service {
namespace FS {
/// Supported archive types
enum class ArchiveIdCode : u32 {
SelfNCCH = 0x00000003,
SaveData = 0x00000004,
ExtSaveData = 0x00000006,
SharedExtSaveData = 0x00000007,
SystemSaveData = 0x00000008,
SDMC = 0x00000009,
SDMCWriteOnly = 0x0000000A,
NCCH = 0x2345678A,
OtherSaveDataGeneral = 0x567890B2,
OtherSaveDataPermitted = 0x567890B4,
};
/// Media types for the archives
enum class MediaType : u32 { NAND = 0, SDMC = 1, GameCard = 2 };
typedef u64 ArchiveHandle;
class File final : public SessionRequestHandler, public std::enable_shared_from_this<File> {
public:
File(std::unique_ptr<FileSys::FileBackend>&& backend, const FileSys::Path& path);
~File();
std::string GetName() const {
return "Path: " + path.DebugStr();
}
FileSys::Path path; ///< Path of the file
u32 priority; ///< Priority of the file. TODO(Subv): Find out what this means
std::unique_ptr<FileSys::FileBackend> backend; ///< File backend interface
protected:
void HandleSyncRequest(Kernel::SharedPtr<Kernel::ServerSession> server_session) override;
};
class Directory final : public SessionRequestHandler {
public:
Directory(std::unique_ptr<FileSys::DirectoryBackend>&& backend, const FileSys::Path& path);
~Directory();
std::string GetName() const {
return "Directory: " + path.DebugStr();
}
FileSys::Path path; ///< Path of the directory
std::unique_ptr<FileSys::DirectoryBackend> backend; ///< File backend interface
protected:
void HandleSyncRequest(Kernel::SharedPtr<Kernel::ServerSession> server_session) override;
};
/**
* Opens an archive
* @param id_code IdCode of the archive to open
* @param archive_path Path to the archive, used with Binary paths
* @return Handle to the opened archive
*/
ResultVal<ArchiveHandle> OpenArchive(ArchiveIdCode id_code, FileSys::Path& archive_path);
/**
* Closes an archive
* @param handle Handle to the archive to close
*/
ResultCode CloseArchive(ArchiveHandle handle);
/**
* Registers an Archive type, instances of which can later be opened using its IdCode.
* @param factory File system backend interface to the archive
* @param id_code Id code used to access this type of archive
*/
ResultCode RegisterArchiveType(std::unique_ptr<FileSys::ArchiveFactory>&& factory,
ArchiveIdCode id_code);
/**
* Open a File from an Archive
* @param archive_handle Handle to an open Archive object
* @param path Path to the File inside of the Archive
* @param mode Mode under which to open the File
* @return The opened File object
*/
ResultVal<std::shared_ptr<File>> OpenFileFromArchive(ArchiveHandle archive_handle,
const FileSys::Path& path,
const FileSys::Mode mode);
/**
* Delete a File from an Archive
* @param archive_handle Handle to an open Archive object
* @param path Path to the File inside of the Archive
* @return Whether deletion succeeded
*/
ResultCode DeleteFileFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path);
/**
* Rename a File between two Archives
* @param src_archive_handle Handle to the source Archive object
* @param src_path Path to the File inside of the source Archive
* @param dest_archive_handle Handle to the destination Archive object
* @param dest_path Path to the File inside of the destination Archive
* @return Whether rename succeeded
*/
ResultCode RenameFileBetweenArchives(ArchiveHandle src_archive_handle,
const FileSys::Path& src_path,
ArchiveHandle dest_archive_handle,
const FileSys::Path& dest_path);
/**
* Delete a Directory from an Archive
* @param archive_handle Handle to an open Archive object
* @param path Path to the Directory inside of the Archive
* @return Whether deletion succeeded
*/
ResultCode DeleteDirectoryFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path);
/**
* Delete a Directory and anything under it from an Archive
* @param archive_handle Handle to an open Archive object
* @param path Path to the Directory inside of the Archive
* @return Whether deletion succeeded
*/
ResultCode DeleteDirectoryRecursivelyFromArchive(ArchiveHandle archive_handle,
const FileSys::Path& path);
/**
* Create a File in an Archive
* @param archive_handle Handle to an open Archive object
* @param path Path to the File inside of the Archive
* @param file_size The size of the new file, filled with zeroes
* @return File creation result code
*/
ResultCode CreateFileInArchive(ArchiveHandle archive_handle, const FileSys::Path& path,
u64 file_size);
/**
* Create a Directory from an Archive
* @param archive_handle Handle to an open Archive object
* @param path Path to the Directory inside of the Archive
* @return Whether creation of directory succeeded
*/
ResultCode CreateDirectoryFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path);
/**
* Rename a Directory between two Archives
* @param src_archive_handle Handle to the source Archive object
* @param src_path Path to the Directory inside of the source Archive
* @param dest_archive_handle Handle to the destination Archive object
* @param dest_path Path to the Directory inside of the destination Archive
* @return Whether rename succeeded
*/
ResultCode RenameDirectoryBetweenArchives(ArchiveHandle src_archive_handle,
const FileSys::Path& src_path,
ArchiveHandle dest_archive_handle,
const FileSys::Path& dest_path);
/**
* Open a Directory from an Archive
* @param archive_handle Handle to an open Archive object
* @param path Path to the Directory inside of the Archive
* @return The opened Directory object
*/
ResultVal<std::shared_ptr<Directory>> OpenDirectoryFromArchive(ArchiveHandle archive_handle,
const FileSys::Path& path);
/**
* Get the free space in an Archive
* @param archive_handle Handle to an open Archive object
* @return The number of free bytes in the archive
*/
ResultVal<u64> GetFreeBytesInArchive(ArchiveHandle archive_handle);
/**
* Erases the contents of the physical folder that contains the archive
* identified by the specified id code and path
* @param id_code The id of the archive to format
* @param format_info Format information about the new archive
* @param path The path to the archive, if relevant.
* @return ResultCode 0 on success or the corresponding code on error
*/
ResultCode FormatArchive(ArchiveIdCode id_code, const FileSys::ArchiveFormatInfo& format_info,
const FileSys::Path& path = FileSys::Path());
/**
* Retrieves the format info about the archive of the specified type and path.
* The format info is supplied by the client code when creating archives.
* @param id_code The id of the archive
* @param archive_path The path of the archive, if relevant
* @return The format info of the archive, or the corresponding error code if failed.
*/
ResultVal<FileSys::ArchiveFormatInfo> GetArchiveFormatInfo(ArchiveIdCode id_code,
FileSys::Path& archive_path);
/**
* Creates a blank SharedExtSaveData archive for the specified extdata ID
* @param media_type The media type of the archive to create (NAND / SDMC)
* @param high The high word of the extdata id to create
* @param low The low word of the extdata id to create
* @param icon_buffer VAddr of the SMDH icon for this ExtSaveData
* @param icon_size Size of the SMDH icon
* @param format_info Format information about the new archive
* @return ResultCode 0 on success or the corresponding code on error
*/
ResultCode CreateExtSaveData(MediaType media_type, u32 high, u32 low, VAddr icon_buffer,
u32 icon_size, const FileSys::ArchiveFormatInfo& format_info);
/**
* Deletes the SharedExtSaveData archive for the specified extdata ID
* @param media_type The media type of the archive to delete (NAND / SDMC)
* @param high The high word of the extdata id to delete
* @param low The low word of the extdata id to delete
* @return ResultCode 0 on success or the corresponding code on error
*/
ResultCode DeleteExtSaveData(MediaType media_type, u32 high, u32 low);
/**
* Deletes the SystemSaveData archive folder for the specified save data id
* @param high The high word of the SystemSaveData archive to delete
* @param low The low word of the SystemSaveData archive to delete
* @return ResultCode 0 on success or the corresponding code on error
*/
ResultCode DeleteSystemSaveData(u32 high, u32 low);
/**
* Creates the SystemSaveData archive folder for the specified save data id
* @param high The high word of the SystemSaveData archive to create
* @param low The low word of the SystemSaveData archive to create
* @return ResultCode 0 on success or the corresponding code on error
*/
ResultCode CreateSystemSaveData(u32 high, u32 low);
/// Initialize archives
void ArchiveInit();
/// Shutdown archives
void ArchiveShutdown();
/// Register all archive types
void RegisterArchiveTypes();
/// Unregister all archive types
void UnregisterArchiveTypes();
} // namespace FS
} // namespace Service
