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Make DVDLowOpenPartition actually change partitions.

This commit is contained in:
magumagu 2014-05-29 03:38:39 -07:00 committed by JosJuice
parent d4125231f3
commit b1df4e5986
6 changed files with 57 additions and 40 deletions
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18
Source/Core/Core/IPC_HLE/WII_IPC_HLE_Device_DI.cpp
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@ -107,19 +107,17 @@ bool CWII_IPC_HLE_Device_di::IOCtlV(u32 _CommandAddress)
_dbg_assert_msg_(WII_IPC_DVD, CommandBuffer.InBuffer[1].m_Address == 0, "DVDLowOpenPartition with ticket");
_dbg_assert_msg_(WII_IPC_DVD, CommandBuffer.InBuffer[2].m_Address == 0, "DVDLowOpenPartition with cert chain");
// Get TMD offset for requested partition...
u64 const TMDOffset = ((u64)Memory::Read_U32(CommandBuffer.InBuffer[0].m_Address + 4) << 2 ) + 0x2c0;
u64 const partition_offset = ((u64)Memory::Read_U32(CommandBuffer.InBuffer[0].m_Address + 4) << 2);
VolumeHandler::GetVolume()->ChangePartition(partition_offset);
INFO_LOG(WII_IPC_DVD, "DVDLowOpenPartition: TMDOffset 0x%016" PRIx64, TMDOffset);
static u32 const TMDsz = 0x208; //CommandBuffer.PayloadBuffer[0].m_Size;
u8 pTMD[TMDsz];
INFO_LOG(WII_IPC_DVD, "DVDLowOpenPartition: partition_offset 0x%016" PRIx64, partition_offset);
// Read TMD to the buffer
VolumeHandler::RAWReadToPtr(pTMD, TMDOffset, TMDsz);
Memory::CopyToEmu(CommandBuffer.PayloadBuffer[0].m_Address, pTMD, TMDsz);
WII_IPC_HLE_Interface::ES_DIVerify(pTMD, TMDsz);
u8 pTMD[0x800];
u32 tmdSz;
VolumeHandler::GetVolume()->GetTMD(pTMD, &tmdSz);
Memory::CopyToEmu(CommandBuffer.PayloadBuffer[0].m_Address, pTMD, tmdSz);
WII_IPC_HLE_Interface::ES_DIVerify(pTMD, tmdSz);
ReturnValue = 1;
}

2
Source/Core/DiscIO/Volume.h
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@ -34,6 +34,8 @@ public:
virtual bool CheckIntegrity() const { return false; }
virtual bool IsDiscTwo() const { return false; }
virtual bool ChangePartition(u64 offset) { return false; }
// Increment CACHE_REVISION if values are changed (ISOFile.cpp)
enum ECountry
{

61
Source/Core/DiscIO/VolumeCreator.cpp
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@ -69,7 +69,7 @@ static const unsigned char s_master_key_korean[16] = {
0x13,0xf2,0xfe,0xfb,0xba,0x4c,0x9b,0x7e
};
static IVolume* CreateVolumeFromCryptedWiiImage(IBlobReader& _rReader, u32 _PartitionGroup, u32 _VolumeType, u32 _VolumeNum, bool Korean);
static IVolume* CreateVolumeFromCryptedWiiImage(IBlobReader& _rReader, u32 _PartitionGroup, u32 _VolumeType, u32 _VolumeNum);
EDiscType GetDiscType(IBlobReader& _rReader);
IVolume* CreateVolumeFromFilename(const std::string& _rFilename, u32 _PartitionGroup, u32 _VolumeNum)
@ -89,10 +89,7 @@ IVolume* CreateVolumeFromFilename(const std::string& _rFilename, u32 _PartitionG
case DISC_TYPE_WII_CONTAINER:
{
u8 region;
pReader->Read(0x3,1,&region);
IVolume* pVolume = CreateVolumeFromCryptedWiiImage(*pReader, _PartitionGroup, 0, _VolumeNum, region == 'K');
IVolume* pVolume = CreateVolumeFromCryptedWiiImage(*pReader, _PartitionGroup, 0, _VolumeNum);
if (pVolume == nullptr)
{
@ -140,7 +137,32 @@ bool IsVolumeWadFile(const IVolume *_rVolume)
return (Common::swap32(MagicWord) == 0x00204973 || Common::swap32(MagicWord) == 0x00206962);
}
static IVolume* CreateVolumeFromCryptedWiiImage(IBlobReader& _rReader, u32 _PartitionGroup, u32 _VolumeType, u32 _VolumeNum, bool Korean)
void VolumeKeyForParition(IBlobReader& _rReader, u64 offset, u8* VolumeKey)
{
CBlobBigEndianReader Reader(_rReader);
u8 SubKey[16];
_rReader.Read(offset + 0x1bf, 16, SubKey);
u8 IV[16];
memset(IV, 0, 16);
_rReader.Read(offset + 0x44c, 8, IV);
bool usingKoreanKey = false;
// Issue: 6813
// Magic value is at partition's offset + 0x1f1 (1byte)
// If encrypted with the Korean key, the magic value would be 1
// Otherwise it is zero
if (Reader.Read8(0x3) == 'K' && Reader.Read8(offset + 0x1f1) == 1)
usingKoreanKey = true;
aes_context AES_ctx;
aes_setkey_dec(&AES_ctx, (usingKoreanKey ? s_master_key_korean : s_master_key), 128);
aes_crypt_cbc(&AES_ctx, AES_DECRYPT, 16, IV, SubKey, VolumeKey);
}
static IVolume* CreateVolumeFromCryptedWiiImage(IBlobReader& _rReader, u32 _PartitionGroup, u32 _VolumeType, u32 _VolumeNum)
{
CBlobBigEndianReader Reader(_rReader);
@ -184,32 +206,11 @@ static IVolume* CreateVolumeFromCryptedWiiImage(IBlobReader& _rReader, u32 _Part
{
const SPartition& rPartition = PartitionGroup[_PartitionGroup].PartitionsVec.at(i);
if (rPartition.Type == _VolumeType || i == _VolumeNum)
if ((rPartition.Type == _VolumeType && (int)_VolumeNum == -1) || i == _VolumeNum)
{
u8 SubKey[16];
_rReader.Read(rPartition.Offset + 0x1bf, 16, SubKey);
u8 IV[16];
memset(IV, 0, 16);
_rReader.Read(rPartition.Offset + 0x44c, 8, IV);
bool usingKoreanKey = false;
// Issue: 6813
// Magic value is at partition's offset + 0x1f1 (1byte)
// If encrypted with the Korean key, the magic value would be 1
// Otherwise it is zero
if (Korean && Reader.Read8(rPartition.Offset + 0x1f1) == 1)
usingKoreanKey = true;
aes_context AES_ctx;
aes_setkey_dec(&AES_ctx, (usingKoreanKey ? s_master_key_korean : s_master_key), 128);
u8 VolumeKey[16];
aes_crypt_cbc(&AES_ctx, AES_DECRYPT, 16, IV, SubKey, VolumeKey);
// -1 means the caller just wanted the partition with matching type
if ((int)_VolumeNum == -1 || i == _VolumeNum)
return new CVolumeWiiCrypted(&_rReader, rPartition.Offset, VolumeKey);
VolumeKeyForParition(_rReader, rPartition.Offset, VolumeKey);
return new CVolumeWiiCrypted(&_rReader, rPartition.Offset, VolumeKey);
}
}

2
Source/Core/DiscIO/VolumeCreator.h
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@ -12,10 +12,12 @@ namespace DiscIO
{
class IVolume;
class IBlobReader;
IVolume* CreateVolumeFromFilename(const std::string& _rFilename, u32 _PartitionGroup = 0, u32 _VolumeNum = -1);
IVolume* CreateVolumeFromDirectory(const std::string& _rDirectory, bool _bIsWii, const std::string& _rApploader = "", const std::string& _rDOL = "");
bool IsVolumeWiiDisc(const IVolume *_rVolume);
bool IsVolumeWadFile(const IVolume *_rVolume);
void VolumeKeyForParition(IBlobReader& _rReader, u64 offset, u8* VolumeKey);
} // namespace

12
Source/Core/DiscIO/VolumeWiiCrypted.cpp
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@ -14,6 +14,7 @@
#include "Common/Logging/Log.h"
#include "DiscIO/Blob.h"
#include "DiscIO/Volume.h"
#include "DiscIO/VolumeCreator.h"
#include "DiscIO/VolumeGC.h"
#include "DiscIO/VolumeWiiCrypted.h"
@ -33,6 +34,17 @@ CVolumeWiiCrypted::CVolumeWiiCrypted(IBlobReader* _pReader, u64 _VolumeOffset,
m_pBuffer = new u8[0x8000];
}
bool CVolumeWiiCrypted::ChangePartition(u64 offset)
{
m_VolumeOffset = offset;
m_LastDecryptedBlockOffset = -1;
u8 volume_key[16];
DiscIO::VolumeKeyForParition(*m_pReader, offset, volume_key);
aes_setkey_dec(m_AES_ctx.get(), volume_key, 128);
return true;
}
CVolumeWiiCrypted::~CVolumeWiiCrypted()
{

2
Source/Core/DiscIO/VolumeWiiCrypted.h
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@ -41,6 +41,8 @@ public:
bool SupportsIntegrityCheck() const override { return true; }
bool CheckIntegrity() const override;
bool ChangePartition(u64 offset) override;
private:
std::unique_ptr<IBlobReader> m_pReader;
std::unique_ptr<aes_context> m_AES_ctx;