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Merge pull request #9409 from AdmiralCurtiss/wii-save-import-tmd

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Make WiiSave::Import() behave closer to the Wii System Menu's SD Card save copying.
This commit is contained in:
Léo Lam 2021-01-05 15:36:36 +01:00 committed by GitHub
commit 840ecfb32f
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GPG Key ID: 4AEE18F83AFDEB23
9 changed files with 254 additions and 53 deletions
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124
Source/Core/Core/HW/WiiSave.cpp
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@ -40,6 +40,7 @@
#include "Core/IOS/IOS.h"
#include "Core/IOS/IOSC.h"
#include "Core/IOS/Uids.h"
#include "Core/WiiUtils.h"
namespace WiiSave
{
@ -68,9 +69,35 @@ public:
ScanForFiles(m_data_dir);
}
bool SaveExists() override
bool SaveExists() const override
{
return m_uid && m_gid && m_fs->GetMetadata(*m_uid, *m_gid, m_data_dir + "/banner.bin");
return !m_files_list.empty() ||
(m_uid && m_gid && m_fs->GetMetadata(*m_uid, *m_gid, m_data_dir + "/banner.bin"));
}
bool EraseSave() override
{
// banner.bin is not in m_files_list, delete separately
const auto banner_delete_result =
m_fs->Delete(IOS::PID_KERNEL, IOS::PID_KERNEL, m_data_dir + "/banner.bin");
if (banner_delete_result != FS::ResultCode::Success)
return false;
for (const SaveFile& file : m_files_list)
{
// files in subdirs are deleted automatically when the subdir is deleted
if (file.path.find('/') != std::string::npos)
continue;
const auto result =
m_fs->Delete(IOS::PID_KERNEL, IOS::PID_KERNEL, m_data_dir + "/" + file.path);
if (result != FS::ResultCode::Success)
return false;
}
m_files_list.clear();
m_files_size = 0;
return true;
}
std::optional<Header> ReadHeader() override
@ -245,6 +272,10 @@ public:
m_file = File::IOFile{path, mode};
}
bool SaveExists() const override { return m_file.GetSize() > 0; }
bool EraseSave() override { return m_file.GetSize() == 0 || m_file.Resize(0); }
std::optional<Header> ReadHeader() override
{
Header header;
@ -446,26 +477,63 @@ StoragePointer MakeDataBinStorage(IOS::HLE::IOSC* iosc, const std::string& path,
return StoragePointer{new DataBinStorage{iosc, path, mode}};
}
template <typename T>
static bool Copy(std::string_view description, Storage* source,
std::optional<T> (Storage::*read_fn)(), Storage* dest,
bool (Storage::*write_fn)(const T&))
CopyResult Copy(Storage* source, Storage* dest)
{
const std::optional<T> data = (source->*read_fn)();
if (data && (dest->*write_fn)(*data))
return true;
ERROR_LOG_FMT(CORE, "WiiSave::Copy: Failed to {} {}", !data ? "read" : "write", description);
return false;
// first make sure we can read all the data from the source
const auto header = source->ReadHeader();
if (!header)
{
ERROR_LOG_FMT(CORE, "WiiSave::Copy: Failed to read header");
return CopyResult::CorruptedSource;
}
const auto bk_header = source->ReadBkHeader();
if (!bk_header)
{
ERROR_LOG_FMT(CORE, "WiiSave::Copy: Failed to read bk header");
return CopyResult::CorruptedSource;
}
const auto files = source->ReadFiles();
if (!files)
{
ERROR_LOG_FMT(CORE, "WiiSave::Copy: Failed to read files");
return CopyResult::CorruptedSource;
}
// once we have confirmed we can read the source, erase corresponding save in the destination
if (dest->SaveExists())
{
if (!dest->EraseSave())
{
ERROR_LOG_FMT(CORE, "WiiSave::Copy: Failed to erase existing save");
return CopyResult::Error;
}
}
// and then write it to the destination
if (!dest->WriteHeader(*header))
{
ERROR_LOG_FMT(CORE, "WiiSave::Copy: Failed to write header");
return CopyResult::Error;
}
if (!dest->WriteBkHeader(*bk_header))
{
ERROR_LOG_FMT(CORE, "WiiSave::Copy: Failed to write bk header");
return CopyResult::Error;
}
if (!dest->WriteFiles(*files))
{
ERROR_LOG_FMT(CORE, "WiiSave::Copy: Failed to write files");
return CopyResult::Error;
}
return CopyResult::Success;
}
bool Copy(Storage* source, Storage* dest)
{
return Copy("header", source, &Storage::ReadHeader, dest, &Storage::WriteHeader) &&
Copy("bk header", source, &Storage::ReadBkHeader, dest, &Storage::WriteBkHeader) &&
Copy("files", source, &Storage::ReadFiles, dest, &Storage::WriteFiles);
}
bool Import(const std::string& data_bin_path, std::function<bool()> can_overwrite)
CopyResult Import(const std::string& data_bin_path, std::function<bool()> can_overwrite)
{
IOS::HLE::Kernel ios;
const auto data_bin = MakeDataBinStorage(&ios.GetIOSC(), data_bin_path, "rb");
@ -473,15 +541,23 @@ bool Import(const std::string& data_bin_path, std::function<bool()> can_overwrit
if (!header)
{
ERROR_LOG_FMT(CORE, "WiiSave::Import: Failed to read header");
return false;
return CopyResult::CorruptedSource;
}
if (!WiiUtils::EnsureTMDIsImported(*ios.GetFS(), *ios.GetES(), header->tid))
{
ERROR_LOG_FMT(CORE, "WiiSave::Import: Failed to find or import TMD for title {:16x}",
header->tid);
return CopyResult::TitleMissing;
}
const auto nand = MakeNandStorage(ios.GetFS().get(), header->tid);
if (nand->SaveExists() && !can_overwrite())
return false;
return CopyResult::Cancelled;
return Copy(data_bin.get(), nand.get());
}
static bool Export(u64 tid, std::string_view export_path, IOS::HLE::Kernel* ios)
static CopyResult Export(u64 tid, std::string_view export_path, IOS::HLE::Kernel* ios)
{
const std::string path = fmt::format("{}/private/wii/title/{}{}{}{}/data.bin", export_path,
static_cast<char>(tid >> 24), static_cast<char>(tid >> 16),
@ -490,7 +566,7 @@ static bool Export(u64 tid, std::string_view export_path, IOS::HLE::Kernel* ios)
MakeDataBinStorage(&ios->GetIOSC(), path, "w+b").get());
}
bool Export(u64 tid, std::string_view export_path)
CopyResult Export(u64 tid, std::string_view export_path)
{
IOS::HLE::Kernel ios;
return Export(tid, export_path, &ios);
@ -502,7 +578,7 @@ size_t ExportAll(std::string_view export_path)
size_t exported_save_count = 0;
for (const u64 title : ios.GetES()->GetInstalledTitles())
{
if (Export(title, export_path, &ios))
if (Export(title, export_path, &ios) == CopyResult::Success)
++exported_save_count;
}
return exported_save_count;

15
Source/Core/Core/HW/WiiSave.h
View File

@ -32,12 +32,21 @@ using StoragePointer = std::unique_ptr<Storage, StorageDeleter>;
StoragePointer MakeNandStorage(IOS::HLE::FS::FileSystem* fs, u64 tid);
StoragePointer MakeDataBinStorage(IOS::HLE::IOSC* iosc, const std::string& path, const char* mode);
bool Copy(Storage* source, Storage* destination);
enum class CopyResult
{
Success,
Error,
Cancelled,
CorruptedSource,
TitleMissing,
};
CopyResult Copy(Storage* source, Storage* destination);
/// Import a save into the NAND from a .bin file.
bool Import(const std::string& data_bin_path, std::function<bool()> can_overwrite);
CopyResult Import(const std::string& data_bin_path, std::function<bool()> can_overwrite);
/// Export a save to a .bin file.
bool Export(u64 tid, std::string_view export_path);
CopyResult Export(u64 tid, std::string_view export_path);
/// Export all saves that are in the NAND. Returns the number of exported saves.
size_t ExportAll(std::string_view export_path);
} // namespace WiiSave

3
Source/Core/Core/HW/WiiSaveStructs.h
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@ -101,7 +101,8 @@ public:
};
virtual ~Storage() = default;
virtual bool SaveExists() { return true; }
virtual bool SaveExists() const = 0;
virtual bool EraseSave() = 0;
virtual std::optional<Header> ReadHeader() = 0;
virtual std::optional<BkHeader> ReadBkHeader() = 0;
virtual std::optional<std::vector<SaveFile>> ReadFiles() = 0;

6
Source/Core/Core/IOS/ES/ES.h
View File

@ -126,7 +126,8 @@ public:
ReturnCode ImportTicket(const std::vector<u8>& ticket_bytes, const std::vector<u8>& cert_chain,
TicketImportType type = TicketImportType::PossiblyPersonalised,
VerifySignature verify_signature = VerifySignature::Yes);
ReturnCode ImportTmd(Context& context, const std::vector<u8>& tmd_bytes);
ReturnCode ImportTmd(Context& context, const std::vector<u8>& tmd_bytes, u64 caller_title_id,
u32 caller_title_flags);
ReturnCode ImportTitleInit(Context& context, const std::vector<u8>& tmd_bytes,
const std::vector<u8>& cert_chain,
VerifySignature verify_signature = VerifySignature::Yes);
@ -135,7 +136,8 @@ public:
ReturnCode ImportContentEnd(Context& context, u32 content_fd);
ReturnCode ImportTitleDone(Context& context);
ReturnCode ImportTitleCancel(Context& context);
ReturnCode ExportTitleInit(Context& context, u64 title_id, u8* tmd, u32 tmd_size);
ReturnCode ExportTitleInit(Context& context, u64 title_id, u8* tmd, u32 tmd_size,
u64 caller_title_id, u32 caller_title_flags);
ReturnCode ExportContentBegin(Context& context, u64 title_id, u32 content_id);
ReturnCode ExportContentData(Context& context, u32 content_fd, u8* data, u32 data_size);
ReturnCode ExportContentEnd(Context& context, u32 content_fd);

26
Source/Core/Core/IOS/ES/TitleManagement.cpp
View File

@ -107,15 +107,14 @@ IPCCommandResult ES::ImportTicket(const IOCtlVRequest& request)
constexpr std::array<u8, 16> NULL_KEY{};
// Used for exporting titles and importing them back (ImportTmd and ExportTitleInit).
static ReturnCode InitBackupKey(const IOS::ES::TMDReader& tmd, IOSC& iosc, IOSC::Handle* key)
static ReturnCode InitBackupKey(u64 tid, u32 title_flags, IOSC& iosc, IOSC::Handle* key)
{
// Some versions of IOS have a bug that causes it to use a zeroed key instead of the PRNG key.
// When Nintendo decided to fix it, they added checks to keep using the zeroed key only in
// affected titles to avoid making existing exports useless.
// Ignore the region byte.
const u64 title_id = tmd.GetTitleId() | 0xff;
const u32 title_flags = tmd.GetTitleFlags();
const u64 title_id = tid | 0xff;
const u32 affected_type = IOS::ES::TITLE_TYPE_0x10 | IOS::ES::TITLE_TYPE_DATA;
if (title_id == Titles::SYSTEM_MENU || (title_flags & affected_type) != affected_type ||
!(title_id == 0x00010005735841ff || title_id - 0x00010005735a41ff <= 0x700))
@ -136,7 +135,8 @@ static void ResetTitleImportContext(ES::Context* context, IOSC& iosc)
context->title_import_export = {};
}
ReturnCode ES::ImportTmd(Context& context, const std::vector<u8>& tmd_bytes)
ReturnCode ES::ImportTmd(Context& context, const std::vector<u8>& tmd_bytes, u64 caller_title_id,
u32 caller_title_flags)
{
INFO_LOG_FMT(IOS_ES, "ImportTmd");
@ -166,8 +166,8 @@ ReturnCode ES::ImportTmd(Context& context, const std::vector<u8>& tmd_bytes)
return ES_EIO;
}
ret =
InitBackupKey(m_title_context.tmd, m_ios.GetIOSC(), &context.title_import_export.key_handle);
ret = InitBackupKey(caller_title_id, caller_title_flags, m_ios.GetIOSC(),
&context.title_import_export.key_handle);
if (ret != IPC_SUCCESS)
{
ERROR_LOG_FMT(IOS_ES, "ImportTmd: InitBackupKey failed with error {}", ret);
@ -189,7 +189,8 @@ IPCCommandResult ES::ImportTmd(Context& context, const IOCtlVRequest& request)
std::vector<u8> tmd(request.in_vectors[0].size);
Memory::CopyFromEmu(tmd.data(), request.in_vectors[0].address, request.in_vectors[0].size);
return GetDefaultReply(ImportTmd(context, tmd));
return GetDefaultReply(ImportTmd(context, tmd, m_title_context.tmd.GetTitleId(),
m_title_context.tmd.GetTitleFlags()));
}
static ReturnCode InitTitleImportKey(const std::vector<u8>& ticket_bytes, IOSC& iosc,
@ -651,7 +652,8 @@ IPCCommandResult ES::DeleteContent(const IOCtlVRequest& request)
Memory::Read_U32(request.in_vectors[1].address)));
}
ReturnCode ES::ExportTitleInit(Context& context, u64 title_id, u8* tmd_bytes, u32 tmd_size)
ReturnCode ES::ExportTitleInit(Context& context, u64 title_id, u8* tmd_bytes, u32 tmd_size,
u64 caller_title_id, u32 caller_title_flags)
{
// No concurrent title import/export is allowed.
if (context.title_import_export.valid)
@ -664,8 +666,8 @@ ReturnCode ES::ExportTitleInit(Context& context, u64 title_id, u8* tmd_bytes, u3
ResetTitleImportContext(&context, m_ios.GetIOSC());
context.title_import_export.tmd = tmd;
const ReturnCode ret =
InitBackupKey(m_title_context.tmd, m_ios.GetIOSC(), &context.title_import_export.key_handle);
const ReturnCode ret = InitBackupKey(caller_title_id, caller_title_flags, m_ios.GetIOSC(),
&context.title_import_export.key_handle);
if (ret != IPC_SUCCESS)
return ret;
@ -688,7 +690,9 @@ IPCCommandResult ES::ExportTitleInit(Context& context, const IOCtlVRequest& requ
u8* tmd_bytes = Memory::GetPointer(request.io_vectors[0].address);
const u32 tmd_size = request.io_vectors[0].size;
return GetDefaultReply(ExportTitleInit(context, title_id, tmd_bytes, tmd_size));
return GetDefaultReply(ExportTitleInit(context, title_id, tmd_bytes, tmd_size,
m_title_context.tmd.GetTitleId(),
m_title_context.tmd.GetTitleFlags()));
}
ReturnCode ES::ExportContentBegin(Context& context, u64 title_id, u32 content_id)

62
Source/Core/Core/WiiUtils.cpp
View File

@ -19,6 +19,7 @@
#include <fmt/format.h>
#include <pugixml.hpp>
#include "Common/Align.h"
#include "Common/Assert.h"
#include "Common/CommonTypes.h"
#include "Common/FileUtil.h"
@ -223,6 +224,67 @@ bool IsTitleInstalled(u64 title_id)
[](const std::string& file) { return file != "title.tmd"; });
}
bool IsTMDImported(IOS::HLE::FS::FileSystem& fs, u64 title_id)
{
const auto entries = fs.ReadDirectory(0, 0, Common::GetTitleContentPath(title_id));
return entries && std::any_of(entries->begin(), entries->end(),
[](const std::string& file) { return file == "title.tmd"; });
}
IOS::ES::TMDReader FindBackupTMD(IOS::HLE::FS::FileSystem& fs, u64 title_id)
{
auto file = fs.OpenFile(IOS::PID_KERNEL, IOS::PID_KERNEL,
"/title/00000001/00000002/data/tmds.sys", IOS::HLE::FS::Mode::Read);
if (!file)
return {};
// structure of this file is as follows:
// - 32 bytes descriptor of a TMD, which contains a title ID and a length
// - the TMD, with padding aligning to 32 bytes
// - repeat for as many TMDs as stored
while (true)
{
std::array<u8, 32> descriptor;
if (!file->Read(descriptor.data(), descriptor.size()))
return {};
const u64 tid = Common::swap64(descriptor.data());
const u32 tmd_length = Common::swap32(descriptor.data() + 8);
if (tid == title_id)
{
// found the right TMD
std::vector<u8> tmd_bytes(tmd_length);
if (!file->Read(tmd_bytes.data(), tmd_length))
return {};
return IOS::ES::TMDReader(std::move(tmd_bytes));
}
// not the right TMD, skip this one and go to the next
if (!file->Seek(Common::AlignUp(tmd_length, 32), IOS::HLE::FS::SeekMode::Current))
return {};
}
}
bool EnsureTMDIsImported(IOS::HLE::FS::FileSystem& fs, IOS::HLE::Device::ES& es, u64 title_id)
{
if (IsTMDImported(fs, title_id))
return true;
auto tmd = FindBackupTMD(fs, title_id);
if (!tmd.IsValid())
return false;
IOS::HLE::Device::ES::Context context;
context.uid = IOS::SYSMENU_UID;
context.gid = IOS::SYSMENU_GID;
const auto import_result =
es.ImportTmd(context, tmd.GetBytes(), Titles::SYSTEM_MENU, IOS::ES::TITLE_TYPE_DEFAULT);
if (import_result != IOS::HLE::IPC_SUCCESS)
return false;
return es.ImportTitleDone(context) == IOS::HLE::IPC_SUCCESS;
}
// Common functionality for system updaters.
class SystemUpdater
{

24
Source/Core/Core/WiiUtils.h
View File

@ -6,10 +6,12 @@
#include <cstddef>
#include <functional>
#include <optional>
#include <string>
#include <unordered_set>
#include "Common/CommonTypes.h"
#include "Core/IOS/ES/Formats.h"
// Small utility functions for common Wii related tasks.
@ -23,6 +25,16 @@ namespace IOS::HLE
class Kernel;
}
namespace IOS::HLE::FS
{
class FileSystem;
}
namespace IOS::HLE::Device
{
class ES;
}
namespace WiiUtils
{
enum class InstallType
@ -40,6 +52,18 @@ bool UninstallTitle(u64 title_id);
bool IsTitleInstalled(u64 title_id);
// Checks if there's a title.tmd imported for the given title ID.
bool IsTMDImported(IOS::HLE::FS::FileSystem& fs, u64 title_id);
// Searches for a TMD matching the given title ID in /title/00000001/00000002/data/tmds.sys.
// Returns it if it exists, otherwise returns an empty invalid TMD.
IOS::ES::TMDReader FindBackupTMD(IOS::HLE::FS::FileSystem& fs, u64 title_id);
// Checks if there's a title.tmd imported for the given title ID. If there is not, we attempt to
// re-import it from the TMDs stored in /title/00000001/00000002/data/tmds.sys.
// Returns true if, after this function call, we have an imported title.tmd, or false if not.
bool EnsureTMDIsImported(IOS::HLE::FS::FileSystem& fs, IOS::HLE::Device::ES& es, u64 title_id);
enum class UpdateResult
{
Succeeded,

5
Source/Core/DolphinQt/GameList/GameList.cpp
View File

@ -452,8 +452,11 @@ void GameList::ExportWiiSave()
QList<std::string> failed;
for (const auto& game : GetSelectedGames())
{
if (!WiiSave::Export(game->GetTitleID(), export_dir.toStdString()))
if (WiiSave::Export(game->GetTitleID(), export_dir.toStdString()) !=
WiiSave::CopyResult::Success)
{
failed.push_back(game->GetName(UICommon::GameFile::Variant::LongAndPossiblyCustom));
}
}
if (!failed.isEmpty())

42
Source/Core/DolphinQt/MenuBar.cpp
View File

@ -1066,19 +1066,39 @@ void MenuBar::ImportWiiSave()
if (file.isEmpty())
return;
bool cancelled = false;
auto can_overwrite = [&] {
bool yes = ModalMessageBox::question(
this, tr("Save Import"),
tr("Save data for this title already exists in the NAND. Consider backing up "
"the current data before overwriting.\nOverwrite now?")) == QMessageBox::Yes;
cancelled = !yes;
return yes;
return ModalMessageBox::question(
this, tr("Save Import"),
tr("Save data for this title already exists in the NAND. Consider backing up "
"the current data before overwriting.\nOverwrite now?")) == QMessageBox::Yes;
};
if (WiiSave::Import(file.toStdString(), can_overwrite))
ModalMessageBox::information(this, tr("Save Import"), tr("Successfully imported save files."));
else if (!cancelled)
ModalMessageBox::critical(this, tr("Save Import"), tr("Failed to import save files."));
const auto result = WiiSave::Import(file.toStdString(), can_overwrite);
switch (result)
{
case WiiSave::CopyResult::Success:
ModalMessageBox::information(this, tr("Save Import"), tr("Successfully imported save file."));
break;
case WiiSave::CopyResult::CorruptedSource:
ModalMessageBox::critical(this, tr("Save Import"),
tr("Failed to import save file. The given file appears to be "
"corrupted or is not a valid Wii save."));
break;
case WiiSave::CopyResult::TitleMissing:
ModalMessageBox::critical(
this, tr("Save Import"),
tr("Failed to import save file. Please launch the game once, then try again."));
break;
case WiiSave::CopyResult::Cancelled:
break;
default:
ModalMessageBox::critical(
this, tr("Save Import"),
tr("Failed to import save file. Your NAND may be corrupt, or something is preventing "
"access to files within it. Try repairing your NAND (Tools -> Manage NAND -> Check "
"NAND...), then import the save again."));
break;
}
}
void MenuBar::ExportWiiSaves()