diff options
| author | hrydgard <hrydgard@gmail.com> | 2008-07-12 17:40:22 +0000 |
|---|---|---|
| committer | hrydgard <hrydgard@gmail.com> | 2008-07-12 17:40:22 +0000 |
| commit | 775dc8a9c0c83f7a2f776e97f5b90385c759535a (patch) | |
| tree | 305bc72e0917f9dd52da3de6b3c81185cd18aaed /Source/Core/DiscIO/Src/VolumeWiiCrypted.cpp | |
| parent | a3be5d89ae21b1c158266c61e312c2b7969c9082 (diff) | |
Initial megacommit.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4 8ced0084-cf51-0410-be5f-012b33b47a6e
Diffstat (limited to 'Source/Core/DiscIO/Src/VolumeWiiCrypted.cpp')
| -rw-r--r-- | Source/Core/DiscIO/Src/VolumeWiiCrypted.cpp | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/Source/Core/DiscIO/Src/VolumeWiiCrypted.cpp b/Source/Core/DiscIO/Src/VolumeWiiCrypted.cpp new file mode 100644 index 0000000000..51f0f862cb --- /dev/null +++ b/Source/Core/DiscIO/Src/VolumeWiiCrypted.cpp @@ -0,0 +1,196 @@ +// Copyright (C) 2003-2008 Dolphin Project.
+
+// 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, version 2.0.
+
+// 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 2.0 for more details.
+
+// A copy of the GPL 2.0 should have been included with the program.
+// If not, see http://www.gnu.org/licenses/
+
+// Official SVN repository and contact information can be found at
+// http://code.google.com/p/dolphin-emu/
+
+#include "stdafx.h"
+
+#include "VolumeWiiCrypted.h"
+#include "StringUtil.h"
+
+namespace DiscIO
+{
+CVolumeWiiCrypted::CVolumeWiiCrypted(IBlobReader* _pReader, u64 _VolumeOffset, const unsigned char* _pVolumeKey)
+ : m_pReader(_pReader),
+ m_pBuffer(0),
+ m_VolumeOffset(_VolumeOffset),
+ m_LastDecryptedBlockOffset(-1)
+{
+ AES_set_decrypt_key(_pVolumeKey, 128, &m_AES_KEY);
+ m_pBuffer = new u8[0x8000];
+}
+
+
+CVolumeWiiCrypted::~CVolumeWiiCrypted()
+{
+ delete m_pReader; // is this really our responsibility?
+ delete[] m_pBuffer;
+}
+
+
+bool
+CVolumeWiiCrypted::Read(u64 _ReadOffset, u64 _Length, u8* _pBuffer) const
+{
+ if (m_pReader == NULL)
+ {
+ return(false);
+ }
+
+ while (_Length > 0)
+ {
+ static unsigned char IV[16];
+
+ // math block offset
+ u64 Block = _ReadOffset / 0x7C00;
+ u64 Offset = _ReadOffset % 0x7C00;
+
+ // read current block
+ if (!m_pReader->Read(m_VolumeOffset + Block * 0x8000, 0x8000, m_pBuffer))
+ {
+ return(false);
+ }
+
+ if (m_LastDecryptedBlockOffset != Block)
+ {
+ memcpy(IV, m_pBuffer + 0x3d0, 16);
+ AES_cbc_encrypt(m_pBuffer + 0x400, m_LastDecryptedBlock, 0x7C00, &m_AES_KEY, IV, AES_DECRYPT);
+
+ m_LastDecryptedBlockOffset = Block;
+ }
+
+ // copy the encrypted data
+ u64 MaxSizeToCopy = 0x7C00 - Offset;
+ u64 CopySize = (_Length > MaxSizeToCopy) ? MaxSizeToCopy : _Length;
+ memcpy(_pBuffer, &m_LastDecryptedBlock[Offset], (size_t)CopySize);
+
+ // increase buffers
+ _Length -= CopySize;
+ _pBuffer += CopySize;
+ _ReadOffset += CopySize;
+ }
+
+ return(true);
+}
+
+
+std::string
+CVolumeWiiCrypted::GetName() const
+{
+ if (m_pReader == NULL)
+ {
+ return(false);
+ }
+
+ char Name[0xFF];
+
+ if (!Read(0x20, 0x60, (u8*)&Name))
+ {
+ return(false);
+ }
+
+ return(Name);
+}
+
+
+std::string
+CVolumeWiiCrypted::GetUniqueID() const
+{
+ if (m_pReader == NULL)
+ {
+ return(false);
+ }
+
+ char ID[7];
+
+ if (!Read(0, 6, (u8*)ID))
+ {
+ return(false);
+ }
+
+ ID[6] = 0;
+
+ return(ID);
+}
+
+
+IVolume::ECountry
+CVolumeWiiCrypted::GetCountry() const
+{
+ if (!m_pReader)
+ {
+ return(COUNTRY_UNKNOWN);
+ }
+
+ u8 CountryCode;
+ m_pReader->Read(3, 1, &CountryCode);
+
+ ECountry country = COUNTRY_UNKNOWN;
+
+ switch (CountryCode)
+ {
+ case 'S':
+ country = COUNTRY_EUROPE;
+ break; // PAL // <- that is shitty :) zelda demo disc
+
+ case 'P':
+ country = COUNTRY_EUROPE;
+ break; // PAL
+
+ case 'D':
+ country = COUNTRY_EUROPE;
+ break; // PAL
+
+ case 'F':
+ country = COUNTRY_FRANCE;
+ break; // PAL
+
+ case 'X':
+ country = COUNTRY_EUROPE;
+ break; // XIII <- uses X but is PAL rip
+
+ case 'E':
+ country = COUNTRY_USA;
+ break; // USA
+
+ case 'J':
+ country = COUNTRY_JAP;
+ break; // JAP
+
+ case 'O':
+ country = COUNTRY_UNKNOWN;
+ break; // SDK
+
+ default:
+ PanicAlert(StringFromFormat("Unknown Country Code!").c_str());
+ break;
+ }
+
+ return(country);
+}
+
+
+u64
+CVolumeWiiCrypted::GetSize() const
+{
+ if (m_pReader)
+ {
+ return(m_pReader->GetDataSize());
+ }
+ else
+ {
+ return(0);
+ }
+}
+} // namespace
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