wudd/source/WUD/DefaultNUSDataProcessor.cpp
Maschell 05aea5756b Various improvements including:
- Display name/type of the partition
- Block home menu when launching via HBL
- Use libmocha instead of libiosuhax, which should result in a small performance boost
- Improve logging
- Improve memory management
- Add option to abort dumps
- Slightly improve .wux handling
2022-07-27 08:22:12 -07:00

61 lines
2.4 KiB
C++

/****************************************************************************
* Copyright (C) 2016-2021 Maschell
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
****************************************************************************/
#include "DefaultNUSDataProcessor.h"
bool DefaultNUSDataProcessor::readPlainDecryptedContent(const std::shared_ptr<Content> &pContent, std::vector<uint8_t> &out_data) {
if ((pContent->type & 0x0002) == 0x0002) {
DEBUG_FUNCTION_LINE_ERR("Hashed content not supported yet");
return false;
}
auto contentSize = ROUNDUP(pContent->encryptedFileSize, 16);
out_data.resize(contentSize);
if (contentSize > UINT32_MAX) {
DEBUG_FUNCTION_LINE_ERR("Content is too big to read");
OSFatal("Content is too big to read");
}
auto inData = make_unique_nothrow<uint8_t[]>((uint32_t) contentSize);
if (!inData) {
DEBUG_FUNCTION_LINE_ERR("Failed to alloc");
return false;
}
if (!dataProvider->readRawContent(pContent, inData.get(), 0, contentSize)) {
DEBUG_FUNCTION_LINE_ERR("Failed tor read content");
return false;
}
std::array<uint8_t, 16> IV{};
memset(IV.data(), 0, 16);
uint16_t content_index = pContent->index;
memcpy(IV.data(), &content_index, 2);
nusDecryption->decryptData(IV, inData.get(), out_data.data(), contentSize);
return true;
}
std::shared_ptr<NUSDataProvider> &DefaultNUSDataProcessor::getDataProvider() {
return dataProvider;
}
DefaultNUSDataProcessor::DefaultNUSDataProcessor(
std::shared_ptr<NUSDataProvider> pDataProvider,
std::shared_ptr<NUSDecryption> pNUSDecryption) : dataProvider(std::move(pDataProvider)),
nusDecryption(std::move(pNUSDecryption)) {
}