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