IVolume* CreateVolumeFromFilename(const std::string& _rFilename, u32 _PartitionGroup, u32 _VolumeNum)
{
IBlobReader* pReader = CreateBlobReader(_rFilename.c_str());
if (pReader == NULL)
return NULL;
switch (GetDiscType(*pReader))
{
case DISC_TYPE_WII:
case DISC_TYPE_GC:
return new CVolumeGC(pReader);
case DISC_TYPE_WAD:
return new CVolumeWAD(pReader);
case DISC_TYPE_WII_CONTAINER:
{
u8 region;
pReader->Read(0x3,1,®ion);
IVolume* pVolume = CreateVolumeFromCryptedWiiImage(*pReader, _PartitionGroup, 0, _VolumeNum, region == 'K');
if (pVolume == NULL)
{
delete pReader;
}
return pVolume;
}
break;
case DISC_TYPE_UNK:
default:
std::string Filename, ext;
SplitPath(_rFilename, NULL, &Filename, &ext);
Filename += ext;
NOTICE_LOG(DISCIO, "%s does not have the Magic word for a gcm, wiidisc or wad file\n"
"Set Log Verbosity to Warning and attempt to load the game again to view the values", Filename.c_str());
delete pReader;
return NULL;
}
// unreachable code
return NULL;
}
void VolumeKeyForPartition(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;
mbedtls_aes_context AES_ctx;
mbedtls_aes_setkey_dec(&AES_ctx, (usingKoreanKey ? s_master_key_korean : s_master_key), 128);
mbedtls_aes_crypt_cbc(&AES_ctx, MBEDTLS_AES_DECRYPT, 16, IV, SubKey, VolumeKey);
}
