102 lines
2.7 KiB
C++
102 lines
2.7 KiB
C++
// Copyright 2009 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#include <cstddef>
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#include <memory>
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#include <string>
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#include "Common/Assert.h"
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#include "Common/CommonTypes.h"
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#include "Common/FileUtil.h"
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#include "Common/MathUtil.h"
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#include "Common/Logging/Log.h"
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#include "DiscIO/Blob.h"
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#include "DiscIO/WiiWad.h"
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namespace DiscIO
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{
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WiiWAD::WiiWAD(const std::string& name)
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{
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std::unique_ptr<IBlobReader> reader(DiscIO::CreateBlobReader(name));
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if (reader == nullptr || File::IsDirectory(name))
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{
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m_Valid = false;
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return;
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}
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m_Valid = ParseWAD(*reader);
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}
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WiiWAD::~WiiWAD()
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{
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if (m_Valid)
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{
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delete[] m_pCertificateChain;
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delete[] m_pTicket;
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delete[] m_pTMD;
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delete[] m_pDataApp;
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delete[] m_pFooter;
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}
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}
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u8* WiiWAD::CreateWADEntry(DiscIO::IBlobReader& _rReader, u32 _Size, u64 _Offset)
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{
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if (_Size > 0)
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{
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u8* pTmpBuffer = new u8[_Size];
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_dbg_assert_msg_(BOOT, pTmpBuffer!=nullptr, "WiiWAD: Can't allocate memory for WAD entry");
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if (!_rReader.Read(_Offset, _Size, pTmpBuffer))
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{
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ERROR_LOG(DISCIO, "WiiWAD: Could not read from file");
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PanicAlertT("WiiWAD: Could not read from file");
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}
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return pTmpBuffer;
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}
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return nullptr;
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}
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bool WiiWAD::ParseWAD(DiscIO::IBlobReader& _rReader)
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{
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CBlobBigEndianReader ReaderBig(_rReader);
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if (!IsWiiWAD(ReaderBig))
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return false;
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u32 Reserved;
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if (!ReaderBig.ReadSwapped(0x8, &m_CertificateChainSize) ||
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!ReaderBig.ReadSwapped(0xC, &Reserved) ||
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!ReaderBig.ReadSwapped(0x10, &m_TicketSize) ||
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!ReaderBig.ReadSwapped(0x14, &m_TMDSize) ||
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!ReaderBig.ReadSwapped(0x18, &m_DataAppSize) ||
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!ReaderBig.ReadSwapped(0x1C, &m_FooterSize))
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return false;
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if (MAX_LOGLEVEL >= LogTypes::LOG_LEVELS::LDEBUG)
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_dbg_assert_msg_(BOOT, Reserved==0x00, "WiiWAD: Reserved must be 0x00");
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u32 Offset = 0x40;
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m_pCertificateChain = CreateWADEntry(_rReader, m_CertificateChainSize, Offset); Offset += ROUND_UP(m_CertificateChainSize, 0x40);
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m_pTicket = CreateWADEntry(_rReader, m_TicketSize, Offset); Offset += ROUND_UP(m_TicketSize, 0x40);
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m_pTMD = CreateWADEntry(_rReader, m_TMDSize, Offset); Offset += ROUND_UP(m_TMDSize, 0x40);
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m_pDataApp = CreateWADEntry(_rReader, m_DataAppSize, Offset); Offset += ROUND_UP(m_DataAppSize, 0x40);
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m_pFooter = CreateWADEntry(_rReader, m_FooterSize, Offset); Offset += ROUND_UP(m_FooterSize, 0x40);
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return true;
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}
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bool WiiWAD::IsWiiWAD(const DiscIO::CBlobBigEndianReader& reader)
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{
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u32 header_size = 0;
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u32 header_type = 0;
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reader.ReadSwapped(0x0, &header_size);
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reader.ReadSwapped(0x4, &header_type);
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return header_size == 0x20 && (header_type == 0x49730000 || header_type == 0x69620000);
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}
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} // namespace end
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