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Use more descriptive error codes and messages

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This commit is contained in:
Zach Hilman
2018-07-30 12:46:23 -04:00
parent 9d59b96ef9
commit 187d8e215f
9 changed files with 101 additions and 34 deletions
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12
src/core/core.cpp
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@@ -101,8 +101,10 @@ System::ResultStatus System::Load(EmuWindow* emu_window, const std::string& file
static_cast<int>(system_mode.second));
switch (system_mode.second) {
case Loader::ResultStatus::ErrorEncrypted:
return ResultStatus::ErrorLoader_ErrorEncrypted;
case Loader::ResultStatus::ErrorMissingKeys:
return ResultStatus::ErrorLoader_ErrorMissingKeys;
case Loader::ResultStatus::ErrorDecrypting:
return ResultStatus::ErrorLoader_ErrorDecrypting;
case Loader::ResultStatus::ErrorInvalidFormat:
return ResultStatus::ErrorLoader_ErrorInvalidFormat;
case Loader::ResultStatus::ErrorUnsupportedArch:
@@ -126,8 +128,10 @@ System::ResultStatus System::Load(EmuWindow* emu_window, const std::string& file
System::Shutdown();
switch (load_result) {
case Loader::ResultStatus::ErrorEncrypted:
return ResultStatus::ErrorLoader_ErrorEncrypted;
case Loader::ResultStatus::ErrorMissingKeys:
return ResultStatus::ErrorLoader_ErrorMissingKeys;
case Loader::ResultStatus::ErrorDecrypting:
return ResultStatus::ErrorLoader_ErrorDecrypting;
case Loader::ResultStatus::ErrorInvalidFormat:
return ResultStatus::ErrorLoader_ErrorInvalidFormat;
case Loader::ResultStatus::ErrorUnsupportedArch:

14
src/core/core.h
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@@ -43,12 +43,14 @@ public:
/// Enumeration representing the return values of the System Initialize and Load process.
enum class ResultStatus : u32 {
Success, ///< Succeeded
ErrorNotInitialized, ///< Error trying to use core prior to initialization
ErrorGetLoader, ///< Error finding the correct application loader
ErrorSystemMode, ///< Error determining the system mode
ErrorLoader, ///< Error loading the specified application
ErrorLoader_ErrorEncrypted, ///< Error loading the specified application due to encryption
Success, ///< Succeeded
ErrorNotInitialized, ///< Error trying to use core prior to initialization
ErrorGetLoader, ///< Error finding the correct application loader
ErrorSystemMode, ///< Error determining the system mode
ErrorLoader, ///< Error loading the specified application
ErrorLoader_ErrorMissingKeys, ///< Error because the key/keys needed to run could not be
///< found.
ErrorLoader_ErrorDecrypting, ///< Error loading the specified application due to encryption
ErrorLoader_ErrorInvalidFormat, ///< Error loading the specified application due to an
/// invalid format
ErrorSystemFiles, ///< Error in finding system files

27
src/core/crypto/key_manager.cpp
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@@ -53,8 +53,8 @@ std::array<u8, 32> operator""_array32(const char* str, size_t len) {
KeyManager::KeyManager() {
// Initialize keys
std::string hactool_keys_dir = FileUtil::GetHactoolConfigurationPath();
std::string yuzu_keys_dir = FileUtil::GetUserPath(FileUtil::UserPath::KeysDir);
const std::string hactool_keys_dir = FileUtil::GetHactoolConfigurationPath();
const std::string yuzu_keys_dir = FileUtil::GetUserPath(FileUtil::UserPath::KeysDir);
if (Settings::values.use_dev_keys) {
dev_mode = true;
AttemptLoadKeyFile(yuzu_keys_dir, hactool_keys_dir, "dev.keys", false);
@@ -109,9 +109,9 @@ void KeyManager::LoadFromFile(std::string_view filename_, bool is_title_keys) {
void KeyManager::AttemptLoadKeyFile(std::string_view dir1_, std::string_view dir2_,
std::string_view filename_, bool title) {
std::string dir1(dir1_);
std::string dir2(dir2_);
std::string filename(filename_);
const std::string dir1(dir1_);
const std::string dir2(dir2_);
const std::string filename(filename_);
if (FileUtil::Exists(dir1 + DIR_SEP + filename))
LoadFromFile(dir1 + DIR_SEP + filename, title);
else if (FileUtil::Exists(dir2 + DIR_SEP + filename))
@@ -146,6 +146,23 @@ void KeyManager::SetKey(S256KeyType id, Key256 key, u64 field1, u64 field2) {
s256_keys[{id, field1, field2}] = key;
}
bool KeyManager::KeyFileExists(bool title) {
const std::string hactool_keys_dir = FileUtil::GetHactoolConfigurationPath();
const std::string yuzu_keys_dir = FileUtil::GetUserPath(FileUtil::UserPath::KeysDir);
if (title) {
return FileUtil::Exists(hactool_keys_dir + DIR_SEP + "title.keys") ||
FileUtil::Exists(yuzu_keys_dir + DIR_SEP + "title.keys");
}
if (Settings::values.use_dev_keys) {
return FileUtil::Exists(hactool_keys_dir + DIR_SEP + "dev.keys") ||
FileUtil::Exists(yuzu_keys_dir + DIR_SEP + "dev.keys");
}
return FileUtil::Exists(hactool_keys_dir + DIR_SEP + "prod.keys") ||
FileUtil::Exists(yuzu_keys_dir + DIR_SEP + "prod.keys");
}
const std::unordered_map<std::string, KeyIndex<S128KeyType>> KeyManager::s128_file_id = {
{"master_key_00", {S128KeyType::Master, 0, 0}},
{"master_key_01", {S128KeyType::Master, 1, 0}},

2
src/core/crypto/key_manager.h
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@@ -102,6 +102,8 @@ public:
void SetKey(S128KeyType id, Key128 key, u64 field1 = 0, u64 field2 = 0);
void SetKey(S256KeyType id, Key256 key, u64 field1 = 0, u64 field2 = 0);
static bool KeyFileExists(bool title);
private:
std::unordered_map<KeyIndex<S128KeyType>, Key128> s128_keys;
std::unordered_map<KeyIndex<S256KeyType>, Key256> s256_keys;

10
src/core/file_sys/content_archive.cpp
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@@ -156,9 +156,9 @@ NCA::NCA(VirtualFile file_) : file(std::move(file_)) {
encrypted = true;
} else {
if (!keys.HasKey(Core::Crypto::S256KeyType::Header))
status = Loader::ResultStatus::ErrorEncrypted;
status = Loader::ResultStatus::ErrorMissingKeys;
else
status = Loader::ResultStatus::ErrorInvalidFormat;
status = Loader::ResultStatus::ErrorDecrypting;
return;
}
}
@@ -194,6 +194,9 @@ NCA::NCA(VirtualFile file_) : file(std::move(file_)) {
if (dec != nullptr) {
files.emplace_back();
romfs = files.back();
} else {
status = Loader::ResultStatus::ErrorMissingKeys;
return;
}
} else if (section.raw.header.filesystem_type == NCASectionFilesystemType::PFS0) {
u64 offset = (static_cast<u64>(header.section_tables[i].media_offset) *
@@ -211,6 +214,9 @@ NCA::NCA(VirtualFile file_) : file(std::move(file_)) {
if (IsDirectoryExeFS(dirs.back()))
exefs = dirs.back();
}
} else {
status = Loader::ResultStatus::ErrorMissingKeys;
return;
}
}
}

3
src/core/loader/loader.h
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@@ -73,7 +73,8 @@ enum class ResultStatus {
ErrorNotUsed,
ErrorAlreadyLoaded,
ErrorMemoryAllocationFailed,
ErrorEncrypted,
ErrorMissingKeys,
ErrorDecrypting,
ErrorUnsupportedArch,
};

2
src/core/loader/xci.cpp
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@@ -49,7 +49,7 @@ ResultStatus AppLoader_XCI::Load(Kernel::SharedPtr<Kernel::Process>& process) {
}
if (xci->GetNCAFileByType(FileSys::NCAContentType::Program) == nullptr) {
return ResultStatus::ErrorEncrypted;
return ResultStatus::ErrorDecrypting;
}
auto result = nca_loader->Load(process);

51
src/yuzu/main.cpp
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@@ -425,18 +425,49 @@ bool GMainWindow::LoadROM(const QString& filename) {
tr("Could not determine the system mode."));
break;
case Core::System::ResultStatus::ErrorLoader_ErrorEncrypted: {
case Core::System::ResultStatus::ErrorLoader_ErrorMissingKeys: {
const auto reg_found = Core::Crypto::KeyManager::KeyFileExists(false);
const auto title_found = Core::Crypto::KeyManager::KeyFileExists(true);
std::string file_text;
if (!reg_found && !title_found) {
file_text = "A proper key file (prod.keys, dev.keys, or title.keys) could not be "
"found. You will need to dump your keys from your switch to continue.";
} else if (reg_found && title_found) {
file_text =
"Both key files were found in your config directory, but the correct key could"
"not be found. You may be missing a titlekey or general key, depending on "
"the game.";
} else if (reg_found) {
file_text =
"The regular keys file (prod.keys/dev.keys) was found in your config, but the "
"titlekeys file (title.keys) was not. You are either missing the correct "
"titlekey or missing a general key required to decrypt the game.";
} else {
file_text = "The title keys file (title.keys) was found in your config, but "
"the regular keys file (prod.keys/dev.keys) was not. Unfortunately, "
"having the titlekey is not enough, you need additional general keys "
"to properly decrypt the game. You should double-check to make sure "
"your keys are correct.";
}
QMessageBox::critical(
this, tr("Error while loading ROM!"),
tr("The game that you are trying to load must be decrypted before being used with "
"yuzu. A real Switch is required.<br/><br/>"
"For more information on dumping and decrypting games, please see the following "
"wiki pages: <ul>"
"<li><a href='https://yuzu-emu.org/wiki/dumping-game-cartridges/'>Dumping Game "
"Cartridges</a></li>"
"<li><a href='https://yuzu-emu.org/wiki/dumping-installed-titles/'>Dumping "
"Installed Titles</a></li>"
"</ul>"));
tr(("The game you are trying to load is encrypted and the required keys to load "
"the game could not be found in your configuration. " +
file_text + " Please refer to <a href=''>How to Dump Keys</a> for help.")
.c_str()));
break;
}
case Core::System::ResultStatus::ErrorLoader_ErrorDecrypting: {
QMessageBox::critical(
this, tr("Error while loading ROM!"),
tr("There was a general error while decrypting the game. This means that the keys "
"necessary were found, but were either incorrect, the game itself was not a "
"valid game or the game uses an unhandled cryptographic scheme. Please refer to "
"<a href=''>How to Dump Keys</a> to double check that you have the correct "
"keys."));
break;
}
case Core::System::ResultStatus::ErrorLoader_ErrorInvalidFormat:

14
src/yuzu_cmd/yuzu.cpp
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@@ -173,11 +173,15 @@ int main(int argc, char** argv) {
case Core::System::ResultStatus::ErrorLoader:
LOG_CRITICAL(Frontend, "Failed to load ROM!");
return -1;
case Core::System::ResultStatus::ErrorLoader_ErrorEncrypted:
LOG_CRITICAL(Frontend, "The game that you are trying to load must be decrypted before "
"being used with yuzu. \n\n For more information on dumping and "
"decrypting games, please refer to: "
"https://yuzu-emu.org/wiki/dumping-game-cartridges/");
case Core::System::ResultStatus::ErrorLoader_ErrorMissingKeys:
LOG_CRITICAL(Frontend, "The game you are trying to load is encrypted and the keys required "
"could not be found. Please refer to <LINK> for help");
return -1;
case Core::System::ResultStatus::ErrorLoader_ErrorDecrypting:
LOG_CRITICAL(Frontend, "The game you are trying to load is encrypted and there was a "
"general error while decrypting. This could mean that the keys are "
"incorrect, game is invalid or game uses an unsupported method of "
"crypto. Please refer to <LINK> to double-check your keys");
return -1;
case Core::System::ResultStatus::ErrorLoader_ErrorInvalidFormat:
LOG_CRITICAL(Frontend, "Error while loading ROM: The ROM format is not supported.");