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https://github.com/wiiu-env/wudd.git
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61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
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/****************************************************************************
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* Copyright (C) 2016-2021 Maschell
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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****************************************************************************/
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#include "DefaultNUSDataProcessor.h"
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bool DefaultNUSDataProcessor::readPlainDecryptedContent(Content *pContent, uint8_t **data, uint32_t *length) {
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if (pContent == nullptr || data == nullptr || length == nullptr) {
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return false;
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}
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if ((pContent->type & 0x0002) == 0x0002) {
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DEBUG_FUNCTION_LINE("Hashed content not supported yet");
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return false;
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}
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*length = ROUNDUP(pContent->encryptedFileSize, 16);
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*data = (uint8_t *) malloc(*length);
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if (*data == nullptr) {
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return false;
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}
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auto *inData = (uint8_t *) malloc(*length);
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if (!dataProvider->readRawContent(pContent, inData, 0, *length)) {
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free(*data);
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free(inData);
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return false;
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}
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uint8_t IV[16];
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memset(IV, 0, 16);
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uint16_t content_index = pContent->index;
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memcpy(IV, &content_index, 2);
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nusDecryption->decryptData(IV, inData, *data, *length);
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free(inData);
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return true;
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}
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NUSDataProvider *DefaultNUSDataProcessor::getDataProvider() {
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return dataProvider;
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}
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DefaultNUSDataProcessor::DefaultNUSDataProcessor(NUSDataProvider *pDataProvider, NUSDecryption *pNUSDecryption) {
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dataProvider = pDataProvider;
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nusDecryption = pNUSDecryption;
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}
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