forked from dolphin-emu/dolphin
161 lines
4.2 KiB
C++
161 lines
4.2 KiB
C++
// Copyright (C) 2003 Dolphin Project.
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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, version 2.0.
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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 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#include "NANDContentLoader.h"
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#include <algorithm>
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#include <cctype>
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#include "MathUtil.h"
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#include "FileUtil.h"
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#include "Log.h"
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#include "WiiWad.h"
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namespace DiscIO
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{
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class CBlobBigEndianReader
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{
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public:
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CBlobBigEndianReader(DiscIO::IBlobReader& _rReader) : m_rReader(_rReader) {}
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u32 Read32(u64 _Offset)
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{
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u32 Temp;
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m_rReader.Read(_Offset, 4, (u8*)&Temp);
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return(Common::swap32(Temp));
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}
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private:
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DiscIO::IBlobReader& m_rReader;
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};
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WiiWAD::WiiWAD(const std::string& _rName)
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{
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DiscIO::IBlobReader* pReader = DiscIO::CreateBlobReader(_rName.c_str());
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if (pReader == NULL || File::IsDirectory(_rName))
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{
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m_Valid = false;
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if(pReader) delete pReader;
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return;
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}
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m_Valid = ParseWAD(*pReader);
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delete pReader;
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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!=0, "WiiWAD: Cant 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 NULL;
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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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// get header size
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u32 HeaderSize = ReaderBig.Read32(0);
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if (HeaderSize != 0x20)
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{
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_dbg_assert_msg_(BOOT, (HeaderSize==0x20), "WiiWAD: Header size != 0x20");
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return false;
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}
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// get header
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u8 Header[0x20];
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_rReader.Read(0, HeaderSize, Header);
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u32 HeaderType = ReaderBig.Read32(0x4);
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if ((0x49730000 != HeaderType) && (0x69620000 != HeaderType))
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return false;
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m_CertificateChainSize = ReaderBig.Read32(0x8);
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u32 Reserved = ReaderBig.Read32(0xC);
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m_TicketSize = ReaderBig.Read32(0x10);
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m_TMDSize = ReaderBig.Read32(0x14);
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m_DataAppSize = ReaderBig.Read32(0x18);
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m_FooterSize = ReaderBig.Read32(0x1C);
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#if MAX_LOGLEVEL >= DEBUG_LEVEL
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_dbg_assert_msg_(BOOT, Reserved==0x00, "WiiWAD: Reserved must be 0x00");
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#else
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(void)Reserved;
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#endif
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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 std::string& _rName)
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{
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DiscIO::IBlobReader* pReader = DiscIO::CreateBlobReader(_rName.c_str());
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if (pReader == NULL)
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return false;
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CBlobBigEndianReader Reader(*pReader);
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bool Result = false;
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// check for wii wad
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if (Reader.Read32(0x00) == 0x20)
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{
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u32 WADTYpe = Reader.Read32(0x04);
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switch(WADTYpe)
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{
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case 0x49730000:
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case 0x69620000:
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Result = true;
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}
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}
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delete pReader;
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return Result;
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}
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} // namespace end
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