wudd/source/WUD/content/WiiUDiscContentsHeader.cpp

56 lines
2.6 KiB
C++
Raw Normal View History

2021-10-09 00:58:55 +02:00
/****************************************************************************
* 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 "WiiUDiscContentsHeader.h"
2022-07-26 08:16:27 +02:00
#include <coreinit/debug.h>
#include <utils/blocksize/DiscBlockSize.h>
2021-10-09 00:58:55 +02:00
std::optional<std::unique_ptr<WiiUDiscContentsHeader>> WiiUDiscContentsHeader::make_unique(const std::shared_ptr<DiscReader> &discReader, uint32_t offset) {
2021-10-09 00:58:55 +02:00
auto *buffer = (uint8_t *) malloc(LENGTH);
if (!buffer) {
DEBUG_FUNCTION_LINE("Failed to alloc buffer");
return {};
}
if (!discReader->hasDiscKey) {
if (!discReader->readEncrypted(buffer, offset, LENGTH)) {
DEBUG_FUNCTION_LINE("Failed to read data");
return {};
2021-10-09 00:58:55 +02:00
}
} else {
if (!discReader->readDecrypted(buffer, offset, 0, LENGTH, discReader->discKey, nullptr, true)) {
DEBUG_FUNCTION_LINE("Failed to read data");
return {};
2021-10-09 00:58:55 +02:00
}
}
if (((uint32_t *) buffer)[0] != MAGIC) {
DEBUG_FUNCTION_LINE("MAGIC mismatch");
return {};
2021-10-09 00:58:55 +02:00
}
auto blockSize = DiscBlockSize(((uint32_t *) buffer)[1]);
std::array<uint8_t, 20> tocHash{};
memcpy(tocHash.data(), &buffer[8], 20);
auto numberOfPartition = ((uint32_t *) buffer)[7];
2021-10-09 00:58:55 +02:00
free(buffer);
return std::unique_ptr<WiiUDiscContentsHeader>(new WiiUDiscContentsHeader(blockSize, tocHash, numberOfPartition));
2021-10-09 00:58:55 +02:00
}
2022-07-26 08:16:27 +02:00
WiiUDiscContentsHeader::WiiUDiscContentsHeader(DiscBlockSize pSize, const std::array<uint8_t, 20> &pTocHash, uint32_t pNumberOfPartitions) : blockSize(pSize),
numberOfPartition(pNumberOfPartitions),
tocHash(pTocHash) {
}