core: fs: Implement NAND archives (#1861)

src/core/CMakeLists.txt

@@ -46,6 +46,8 @@ add_library(citra_core STATIC
     file_sys/archive_backend.h
     file_sys/archive_extsavedata.cpp
     file_sys/archive_extsavedata.h
+    file_sys/archive_nand.cpp
+    file_sys/archive_nand.h
     file_sys/archive_ncch.cpp
     file_sys/archive_ncch.h
     file_sys/archive_other_savedata.cpp

src/core/file_sys/archive_backend.h

@@ -1,4 +1,4 @@
-// Copyright 2014 Citra Emulator Project
+// Copyright Citra Emulator Project / Azahar Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
@@ -35,6 +35,18 @@ union Mode {
     BitField<0, 1, u32> read_flag;
     BitField<1, 1, u32> write_flag;
     BitField<2, 1, u32> create_flag;
+
+    bool operator==(const Mode& other) const {
+        return hex == other.hex;
+    }
+
+    bool operator!=(const Mode& other) const {
+        return !(*this == other);
+    }
+
+    static constexpr Mode ReadOnly() {
+        return Mode{.hex = 1};
+    }
 };
 
 class Path {

src/core/file_sys/archive_nand.cpp

@@ -0,0 +1,419 @@
+// Copyright Citra Emulator Project / Azahar Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <algorithm>
+#include <memory>
+#include "common/archives.h"
+#include "common/common_paths.h"
+#include "common/error.h"
+#include "common/file_util.h"
+#include "common/logging/log.h"
+#include "common/settings.h"
+#include "core/file_sys/archive_nand.h"
+#include "core/file_sys/disk_archive.h"
+#include "core/file_sys/errors.h"
+#include "core/file_sys/path_parser.h"
+
+SERIALIZE_EXPORT_IMPL(FileSys::NANDArchive)
+SERIALIZE_EXPORT_IMPL(FileSys::ArchiveFactory_NAND)
+
+namespace FileSys {
+
+// TODO(PabloMK7): This code is very similar to the SMDC archive code. Maybe we should look
+// into unifying everything in a FAT-like archive, as both the SMDC and NAND archives
+// seem to behave the same way.
+
+ResultVal<std::unique_ptr<FileBackend>> NANDArchive::OpenFile(const Path& path, const Mode& mode,
+                                                              u32 attributes) {
+    LOG_DEBUG(Service_FS, "called path={} mode={:01X}", path.DebugStr(), mode.hex);
+
+    if (!AllowsWrite() && mode != Mode::ReadOnly()) {
+        return ResultInvalidOpenFlags;
+    }
+
+    const PathParser path_parser(path);
+
+    if (!path_parser.IsValid()) {
+        LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
+        return ResultInvalidPath;
+    }
+
+    if (mode.hex == 0) {
+        LOG_ERROR(Service_FS, "Empty open mode");
+        return ResultInvalidOpenFlags;
+    }
+
+    if (mode.create_flag && !mode.write_flag) {
+        LOG_ERROR(Service_FS, "Create flag set but write flag not set");
+        return ResultInvalidOpenFlags;
+    }
+
+    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 {}", mount_point);
+        return ResultNotFound;
+    case PathParser::PathNotFound:
+    case PathParser::FileInPath:
+        LOG_DEBUG(Service_FS, "Path not found {}", full_path);
+        return ResultNotFound;
+    case PathParser::DirectoryFound:
+        LOG_DEBUG(Service_FS, "{} is not a file", full_path);
+        return ResultUnexpectedFileOrDirectorySdmc;
+    case PathParser::NotFound:
+        if (!mode.create_flag) {
+            LOG_DEBUG(Service_FS, "Non-existing file {} can't be open without mode create.",
+                      full_path);
+            return ResultNotFound;
+        } 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, "Error opening {}: {}", full_path, Common::GetLastErrorMsg());
+        return ResultNotFound;
+    }
+
+    return std::make_unique<DiskFile>(std::move(file), mode, nullptr);
+}
+
+Result NANDArchive::DeleteFile(const Path& path) const {
+
+    if (!AllowsWrite()) {
+        return ResultInvalidOpenFlags;
+    }
+
+    const PathParser path_parser(path);
+
+    if (!path_parser.IsValid()) {
+        LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
+        return ResultInvalidPath;
+    }
+
+    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 {}", mount_point);
+        return ResultNotFound;
+    case PathParser::PathNotFound:
+    case PathParser::FileInPath:
+    case PathParser::NotFound:
+        LOG_DEBUG(Service_FS, "{} not found", full_path);
+        return ResultNotFound;
+    case PathParser::DirectoryFound:
+        LOG_ERROR(Service_FS, "{} is not a file", full_path);
+        return ResultUnexpectedFileOrDirectorySdmc;
+    case PathParser::FileFound:
+        break; // Expected 'success' case
+    }
+
+    if (FileUtil::Delete(full_path)) {
+        return ResultSuccess;
+    }
+
+    LOG_CRITICAL(Service_FS, "(unreachable) Unknown error deleting {}", full_path);
+    return ResultNotFound;
+}
+
+Result NANDArchive::RenameFile(const Path& src_path, const Path& dest_path) const {
+
+    if (!AllowsWrite()) {
+        return ResultInvalidOpenFlags;
+    }
+
+    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 {}", src_path.DebugStr());
+        return ResultInvalidPath;
+    }
+
+    const PathParser path_parser_dest(dest_path);
+
+    if (!path_parser_dest.IsValid()) {
+        LOG_ERROR(Service_FS, "Invalid dest path {}", dest_path.DebugStr());
+        return ResultInvalidPath;
+    }
+
+    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 ResultSuccess;
+    }
+
+    // TODO(yuriks): This code probably isn't right, it'll return a Status even if the file didn't
+    // exist or similar. Verify.
+    return Result(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
+                  ErrorSummary::NothingHappened, ErrorLevel::Status);
+}
+
+template <typename T>
+static Result 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 {}", path.DebugStr());
+        return ResultInvalidPath;
+    }
+
+    if (path_parser.IsRootDirectory())
+        return ResultInvalidOpenFlags;
+
+    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 {}", mount_point);
+        return ResultNotFound;
+    case PathParser::PathNotFound:
+    case PathParser::NotFound:
+        LOG_ERROR(Service_FS, "Path not found {}", full_path);
+        return ResultNotFound;
+    case PathParser::FileInPath:
+    case PathParser::FileFound:
+        LOG_ERROR(Service_FS, "Unexpected file in path {}", full_path);
+        return ResultUnexpectedFileOrDirectorySdmc;
+    case PathParser::DirectoryFound:
+        break; // Expected 'success' case
+    }
+
+    if (deleter(full_path)) {
+        return ResultSuccess;
+    }
+
+    LOG_ERROR(Service_FS, "Directory not empty {}", full_path);
+    return ResultUnexpectedFileOrDirectorySdmc;
+}
+
+Result NANDArchive::DeleteDirectory(const Path& path) const {
+    if (!AllowsWrite()) {
+        return ResultInvalidOpenFlags;
+    }
+
+    return DeleteDirectoryHelper(path, mount_point, FileUtil::DeleteDir);
+}
+
+Result NANDArchive::DeleteDirectoryRecursively(const Path& path) const {
+    if (!AllowsWrite()) {
+        return ResultInvalidOpenFlags;
+    }
+
+    return DeleteDirectoryHelper(
+        path, mount_point, [](const std::string& p) { return FileUtil::DeleteDirRecursively(p); });
+}
+
+Result NANDArchive::CreateFile(const FileSys::Path& path, u64 size, u32 attributes) const {
+    if (!AllowsWrite()) {
+        return ResultInvalidOpenFlags;
+    }
+
+    const PathParser path_parser(path);
+
+    if (!path_parser.IsValid()) {
+        LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
+        return ResultInvalidPath;
+    }
+
+    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 {}", mount_point);
+        return ResultNotFound;
+    case PathParser::PathNotFound:
+    case PathParser::FileInPath:
+        LOG_ERROR(Service_FS, "Path not found {}", full_path);
+        return ResultNotFound;
+    case PathParser::DirectoryFound:
+        LOG_ERROR(Service_FS, "{} already exists", full_path);
+        return ResultUnexpectedFileOrDirectorySdmc;
+    case PathParser::FileFound:
+        LOG_ERROR(Service_FS, "{} already exists", full_path);
+        return ResultAlreadyExists;
+    case PathParser::NotFound:
+        break; // Expected 'success' case
+    }
+
+    if (size == 0) {
+        FileUtil::CreateEmptyFile(full_path);
+        return ResultSuccess;
+    }
+
+    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 ResultSuccess;
+    }
+
+    LOG_ERROR(Service_FS, "Too large file");
+    return Result(ErrorDescription::TooLarge, ErrorModule::FS, ErrorSummary::OutOfResource,
+                  ErrorLevel::Info);
+}
+
+Result NANDArchive::CreateDirectory(const Path& path, u32 attributes) const {
+    if (!AllowsWrite()) {
+        return ResultInvalidOpenFlags;
+    }
+
+    const PathParser path_parser(path);
+
+    if (!path_parser.IsValid()) {
+        LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
+        return ResultInvalidPath;
+    }
+
+    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 {}", mount_point);
+        return ResultNotFound;
+    case PathParser::PathNotFound:
+    case PathParser::FileInPath:
+        LOG_ERROR(Service_FS, "Path not found {}", full_path);
+        return ResultNotFound;
+    case PathParser::DirectoryFound:
+    case PathParser::FileFound:
+        LOG_DEBUG(Service_FS, "{} already exists", full_path);
+        return ResultAlreadyExists;
+    case PathParser::NotFound:
+        break; // Expected 'success' case
+    }
+
+    if (FileUtil::CreateDir(mount_point + path.AsString())) {
+        return ResultSuccess;
+    }
+
+    LOG_CRITICAL(Service_FS, "(unreachable) Unknown error creating {}", mount_point);
+    return Result(ErrorDescription::NoData, ErrorModule::FS, ErrorSummary::Canceled,
+                  ErrorLevel::Status);
+}
+
+Result NANDArchive::RenameDirectory(const Path& src_path, const Path& dest_path) const {
+    if (!AllowsWrite()) {
+        return ResultInvalidOpenFlags;
+    }
+
+    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 {}", src_path.DebugStr());
+        return ResultInvalidPath;
+    }
+
+    const PathParser path_parser_dest(dest_path);
+
+    if (!path_parser_dest.IsValid()) {
+        LOG_ERROR(Service_FS, "Invalid dest path {}", dest_path.DebugStr());
+        return ResultInvalidPath;
+    }
+
+    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 ResultSuccess;
+    }
+
+    // TODO(yuriks): This code probably isn't right, it'll return a Status even if the file didn't
+    // exist or similar. Verify.
+    return Result(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
+                  ErrorSummary::NothingHappened, ErrorLevel::Status);
+}
+
+ResultVal<std::unique_ptr<DirectoryBackend>> NANDArchive::OpenDirectory(const Path& path) {
+    const PathParser path_parser(path);
+
+    if (!path_parser.IsValid()) {
+        LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
+        return ResultInvalidPath;
+    }
+
+    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 {}", mount_point);
+        return ResultNotFound;
+    case PathParser::PathNotFound:
+    case PathParser::NotFound:
+    case PathParser::FileFound:
+        LOG_DEBUG(Service_FS, "{} not found", full_path);
+        return ResultNotFound;
+    case PathParser::FileInPath:
+        LOG_DEBUG(Service_FS, "Unexpected file in path {}", full_path);
+        return ResultUnexpectedFileOrDirectorySdmc;
+    case PathParser::DirectoryFound:
+        break; // Expected 'success' case
+    }
+
+    return std::make_unique<DiskDirectory>(full_path);
+}
+
+u64 NANDArchive::GetFreeBytes() const {
+    // TODO: Stubbed to return 1GiB
+    return 1024 * 1024 * 1024;
+}
+
+ArchiveFactory_NAND::ArchiveFactory_NAND(const std::string& nand_directory, NANDArchiveType type)
+    : nand_directory(nand_directory), archive_type(type) {
+
+    LOG_DEBUG(Service_FS, "Directory {} set as NAND.", nand_directory);
+}
+
+bool ArchiveFactory_NAND::Initialize() {
+    if (!FileUtil::CreateFullPath(GetPath())) {
+        LOG_ERROR(Service_FS, "Unable to create NAND path.");
+        return false;
+    }
+
+    return true;
+}
+
+std::string ArchiveFactory_NAND::GetPath() {
+    switch (archive_type) {
+    case NANDArchiveType::RW:
+        return PathParser("/rw").BuildHostPath(nand_directory) + DIR_SEP;
+    case NANDArchiveType::RO:
+    case NANDArchiveType::RO_W:
+        return PathParser("/ro").BuildHostPath(nand_directory) + DIR_SEP;
+    default:
+        break;
+    }
+
+    UNREACHABLE();
+    return "";
+}
+
+ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_NAND::Open(const Path& path,
+                                                                     u64 program_id) {
+    return std::make_unique<NANDArchive>(GetPath(), archive_type);
+}
+
+Result ArchiveFactory_NAND::Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
+                                   u64 program_id, u32 directory_buckets, u32 file_buckets) {
+    // TODO(PabloMK7): Find proper error code
+    LOG_ERROR(Service_FS, "Unimplemented Format archive {}", GetName());
+    return UnimplementedFunction(ErrorModule::FS);
+}
+
+ResultVal<ArchiveFormatInfo> ArchiveFactory_NAND::GetFormatInfo(const Path& path,
+                                                                u64 program_id) const {
+    // TODO(PabloMK7): Implement
+    LOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive {}", GetName());
+    return UnimplementedFunction(ErrorModule::FS);
+}
+} // namespace FileSys

src/core/file_sys/archive_nand.h

@@ -0,0 +1,115 @@
+// Copyright Citra Emulator Project / Azahar Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+#include <string>
+#include <boost/serialization/base_object.hpp>
+#include <boost/serialization/export.hpp>
+#include <boost/serialization/string.hpp>
+#include "core/file_sys/archive_backend.h"
+#include "core/hle/result.h"
+
+namespace FileSys {
+
+enum class NANDArchiveType : u32 {
+    RW,   ///< Access to Read Write (rw) directory
+    RO,   ///< Access to Read Only (ro) directory
+    RO_W, ///< Access to Read Only (ro) directory with write permissions
+};
+
+/// Archive backend for SDMC archive
+class NANDArchive : public ArchiveBackend {
+public:
+    explicit NANDArchive(const std::string& mount_point_, NANDArchiveType archive_type)
+        : mount_point(mount_point_) {}
+
+    std::string GetName() const override {
+        return "NANDArchive: " + mount_point;
+    }
+
+    ResultVal<std::unique_ptr<FileBackend>> OpenFile(const Path& path, const Mode& mode,
+                                                     u32 attributes) override;
+    Result DeleteFile(const Path& path) const override;
+    Result RenameFile(const Path& src_path, const Path& dest_path) const override;
+    Result DeleteDirectory(const Path& path) const override;
+    Result DeleteDirectoryRecursively(const Path& path) const override;
+    Result CreateFile(const Path& path, u64 size, u32 attributes) const override;
+    Result CreateDirectory(const Path& path, u32 attributes) const override;
+    Result RenameDirectory(const Path& src_path, const Path& dest_path) const override;
+    ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory(const Path& path) override;
+    u64 GetFreeBytes() const override;
+
+protected:
+    std::string mount_point{};
+    NANDArchiveType archive_type{};
+
+    NANDArchive() = default;
+    template <class Archive>
+    void serialize(Archive& ar, const unsigned int) {
+        ar& boost::serialization::base_object<ArchiveBackend>(*this);
+        ar & mount_point;
+        ar & archive_type;
+    }
+    friend class boost::serialization::access;
+
+private:
+    bool AllowsWrite() const {
+        return archive_type != NANDArchiveType::RO;
+    }
+};
+
+/// File system interface to the NAND archive
+class ArchiveFactory_NAND final : public ArchiveFactory {
+public:
+    explicit ArchiveFactory_NAND(const std::string& mount_point, NANDArchiveType type);
+
+    /**
+     * Initialize the archive.
+     * @return true if it initialized successfully
+     */
+    bool Initialize();
+
+    std::string GetPath();
+
+    std::string GetName() const override {
+        switch (archive_type) {
+        case NANDArchiveType::RW:
+            return "NAND RW";
+        case NANDArchiveType::RO:
+            return "NAND RO";
+        case NANDArchiveType::RO_W:
+            return "NAND RO W";
+        default:
+            break;
+        }
+
+        UNIMPLEMENTED();
+        return "";
+    }
+
+    ResultVal<std::unique_ptr<ArchiveBackend>> Open(const Path& path, u64 program_id) override;
+    Result Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info, u64 program_id,
+                  u32 directory_buckets, u32 file_buckets) override;
+    ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path, u64 program_id) const override;
+
+private:
+    std::string nand_directory;
+    NANDArchiveType archive_type;
+
+    ArchiveFactory_NAND() = default;
+    template <class Archive>
+    void serialize(Archive& ar, const unsigned int) {
+        ar& boost::serialization::base_object<ArchiveFactory>(*this);
+        ar & nand_directory;
+        ar & archive_type;
+    }
+    friend class boost::serialization::access;
+};
+
+} // namespace FileSys
+
+BOOST_CLASS_EXPORT_KEY(FileSys::NANDArchive)
+BOOST_CLASS_EXPORT_KEY(FileSys::ArchiveFactory_NAND)

src/core/file_sys/archive_sdmc.cpp

@@ -1,4 +1,4 @@
-// Copyright 2014 Citra Emulator Project
+// Copyright Citra Emulator Project / Azahar Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
@@ -185,7 +185,7 @@ static Result DeleteDirectoryHelper(const Path& path, const std::string& mount_p
     }
 
     if (path_parser.IsRootDirectory())
-        return ResultNotFound;
+        return ResultInvalidOpenFlags;
 
     const auto full_path = path_parser.BuildHostPath(mount_point);
 

src/core/hle/service/fs/archive.cpp

@@ -15,6 +15,7 @@
 #include "core/core.h"
 #include "core/file_sys/archive_backend.h"
 #include "core/file_sys/archive_extsavedata.h"
+#include "core/file_sys/archive_nand.h"
 #include "core/file_sys/archive_ncch.h"
 #include "core/file_sys/archive_other_savedata.h"
 #include "core/file_sys/archive_savedata.h"
@@ -393,6 +394,28 @@ void ArchiveManager::RegisterArchiveTypes() {
         sdmc_directory, FileSys::ExtSaveDataType::Boss);
     RegisterArchiveType(std::move(bossextsavedata_factory), ArchiveIdCode::BossExtSaveData);
 
+    auto nand_rw = std::make_unique<FileSys::ArchiveFactory_NAND>(nand_directory,
+                                                                  FileSys::NANDArchiveType::RW);
+    if (nand_rw->Initialize())
+        RegisterArchiveType(std::move(nand_rw), ArchiveIdCode::NANDRW);
+    else
+        LOG_ERROR(Service_FS, "Can't instantiate NAND RW archive with path {}", nand_rw->GetPath());
+
+    auto nand_ro = std::make_unique<FileSys::ArchiveFactory_NAND>(nand_directory,
+                                                                  FileSys::NANDArchiveType::RO);
+    if (nand_ro->Initialize())
+        RegisterArchiveType(std::move(nand_ro), ArchiveIdCode::NANDRO);
+    else
+        LOG_ERROR(Service_FS, "Can't instantiate NAND RO archive with path {}", nand_ro->GetPath());
+
+    auto nand_ro_w = std::make_unique<FileSys::ArchiveFactory_NAND>(nand_directory,
+                                                                    FileSys::NANDArchiveType::RO_W);
+    if (nand_ro_w->Initialize())
+        RegisterArchiveType(std::move(nand_ro_w), ArchiveIdCode::NANDROW);
+    else
+        LOG_ERROR(Service_FS, "Can't instantiate NAND RO_W archive with path {}",
+                  nand_ro_w->GetPath());
+
     // Create the NCCH archive, basically a small variation of the RomFS archive
     auto savedatacheck_factory = std::make_unique<FileSys::ArchiveFactory_NCCH>();
     RegisterArchiveType(std::move(savedatacheck_factory), ArchiveIdCode::NCCH);

src/core/hle/service/fs/archive.h

@@ -43,6 +43,9 @@ enum class ArchiveIdCode : u32 {
     SDMC = 0x00000009,
     SDMCWriteOnly = 0x0000000A,
     BossExtSaveData = 0x12345678,
+    NANDRW = 0x1234567D,
+    NANDRO = 0x1234567E,
+    NANDROW = 0x1234567F,
     NCCH = 0x2345678A,
     OtherSaveDataGeneral = 0x567890B2,
     OtherSaveDataPermitted = 0x567890B4,