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// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <tuple>
#include "core/file_sys/archive_other_savedata.h"
#include "core/file_sys/errors.h"
#include "core/hle/kernel/process.h"
#include "core/hle/service/fs/archive.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace
namespace FileSys {
// TODO(wwylele): The storage info in exheader should be checked before accessing these archives
using Service::FS::MediaType;
namespace {
template <typename T>
ResultVal<std::tuple<MediaType, u64>> ParsePath(const Path& path, T program_id_reader) {
if (path.GetType() != Binary) {
LOG_ERROR(Service_FS, "Wrong path type %d", static_cast<int>(path.GetType()));
return ERROR_INVALID_PATH;
}
std::vector<u8> vec_data = path.AsBinary();
if (vec_data.size() != 12) {
LOG_ERROR(Service_FS, "Wrong path length %zu", vec_data.size());
return ERROR_INVALID_PATH;
}
const u32* data = reinterpret_cast<const u32*>(vec_data.data());
auto media_type = static_cast<MediaType>(data[0]);
if (media_type != MediaType::SDMC && media_type != MediaType::GameCard) {
LOG_ERROR(Service_FS, "Unsupported media type %u", static_cast<u32>(media_type));
// Note: this is strange, but the error code was verified with a real 3DS
return ERROR_UNSUPPORTED_OPEN_FLAGS;
}
return MakeResult<std::tuple<MediaType, u64>>(media_type, program_id_reader(data));
}
ResultVal<std::tuple<MediaType, u64>> ParsePathPermitted(const Path& path) {
return ParsePath(path,
[](const u32* data) -> u64 { return (data[1] << 8) | 0x0004000000000000ULL; });
}
ResultVal<std::tuple<MediaType, u64>> ParsePathGeneral(const Path& path) {
return ParsePath(
path, [](const u32* data) -> u64 { return data[1] | (static_cast<u64>(data[2]) << 32); });
}
} // namespace
ArchiveFactory_OtherSaveDataPermitted::ArchiveFactory_OtherSaveDataPermitted(
std::shared_ptr<ArchiveSource_SDSaveData> sd_savedata)
: sd_savedata_source(sd_savedata) {}
ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_OtherSaveDataPermitted::Open(
const Path& path) {
MediaType media_type;
u64 program_id;
CASCADE_RESULT(std::tie(media_type, program_id), ParsePathPermitted(path));
if (media_type == MediaType::GameCard) {
LOG_WARNING(Service_FS, "(stubbed) Unimplemented media type GameCard");
return ERROR_GAMECARD_NOT_INSERTED;
}
return sd_savedata_source->Open(program_id);
}
ResultCode ArchiveFactory_OtherSaveDataPermitted::Format(
const Path& path, const FileSys::ArchiveFormatInfo& format_info) {
LOG_ERROR(Service_FS, "Attempted to format a OtherSaveDataPermitted archive.");
return ERROR_INVALID_PATH;
}
ResultVal<ArchiveFormatInfo> ArchiveFactory_OtherSaveDataPermitted::GetFormatInfo(
const Path& path) const {
MediaType media_type;
u64 program_id;
CASCADE_RESULT(std::tie(media_type, program_id), ParsePathPermitted(path));
if (media_type == MediaType::GameCard) {
LOG_WARNING(Service_FS, "(stubbed) Unimplemented media type GameCard");
return ERROR_GAMECARD_NOT_INSERTED;
}
return sd_savedata_source->GetFormatInfo(program_id);
}
ArchiveFactory_OtherSaveDataGeneral::ArchiveFactory_OtherSaveDataGeneral(
std::shared_ptr<ArchiveSource_SDSaveData> sd_savedata)
: sd_savedata_source(sd_savedata) {}
ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_OtherSaveDataGeneral::Open(
const Path& path) {
MediaType media_type;
u64 program_id;
CASCADE_RESULT(std::tie(media_type, program_id), ParsePathGeneral(path));
if (media_type == MediaType::GameCard) {
LOG_WARNING(Service_FS, "(stubbed) Unimplemented media type GameCard");
return ERROR_GAMECARD_NOT_INSERTED;
}
return sd_savedata_source->Open(program_id);
}
ResultCode ArchiveFactory_OtherSaveDataGeneral::Format(
const Path& path, const FileSys::ArchiveFormatInfo& format_info) {
MediaType media_type;
u64 program_id;
CASCADE_RESULT(std::tie(media_type, program_id), ParsePathGeneral(path));
if (media_type == MediaType::GameCard) {
LOG_WARNING(Service_FS, "(stubbed) Unimplemented media type GameCard");
return ERROR_GAMECARD_NOT_INSERTED;
}
return sd_savedata_source->Format(program_id, format_info);
}
ResultVal<ArchiveFormatInfo> ArchiveFactory_OtherSaveDataGeneral::GetFormatInfo(
const Path& path) const {
MediaType media_type;
u64 program_id;
CASCADE_RESULT(std::tie(media_type, program_id), ParsePathGeneral(path));
if (media_type == MediaType::GameCard) {
LOG_WARNING(Service_FS, "(stubbed) Unimplemented media type GameCard");
return ERROR_GAMECARD_NOT_INSERTED;
}
return sd_savedata_source->GetFormatInfo(program_id);
}
} // namespace FileSys
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