/*****************************************************************************/ /* SBaseSubTypes.cpp Copyright (c) Ladislav Zezula 2013 */ /*---------------------------------------------------------------------------*/ /* Conversion routines for archive formats that are similar to MPQ format */ /*---------------------------------------------------------------------------*/ /* Date Ver Who Comment */ /* -------- ---- --- ------- */ /* 02.11.11 1.00 Lad The first version of SBaseSubTypes.cpp */ /*****************************************************************************/ #define __STORMLIB_SELF__ #include "StormLib.h" #include "StormCommon.h" /*****************************************************************************/ /* */ /* Support for SQP file format (War of the Immortals) */ /* */ /*****************************************************************************/ typedef struct _TSQPHeader { // The ID_MPQ ('MPQ\x1A') signature DWORD dwID; // Size of the archive header DWORD dwHeaderSize; // 32-bit size of MPQ archive DWORD dwArchiveSize; // Offset to the beginning of the hash table, relative to the beginning of the archive. DWORD dwHashTablePos; // Offset to the beginning of the block table, relative to the beginning of the archive. DWORD dwBlockTablePos; // Number of entries in the hash table. Must be a power of two, and must be less than 2^16 for // the original MoPaQ format, or less than 2^20 for the Burning Crusade format. DWORD dwHashTableSize; // Number of entries in the block table DWORD dwBlockTableSize; // Must be zero for SQP files USHORT wFormatVersion; // Power of two exponent specifying the number of 512-byte disk sectors in each file sector // in the archive. The size of each file sector in the archive is 512 * 2 ^ wSectorSize. USHORT wSectorSize; } TSQPHeader; typedef struct _TSQPHash { // Most likely the lcLocale+wPlatform. DWORD dwAlwaysZero; // If the hash table entry is valid, this is the index into the block table of the file. // Otherwise, one of the following two values: // - FFFFFFFFh: Hash table entry is empty, and has always been empty. // Terminates searches for a given file. // - FFFFFFFEh: Hash table entry is empty, but was valid at some point (a deleted file). // Does not terminate searches for a given file. DWORD dwBlockIndex; // The hash of the file path, using method A. DWORD dwName1; // The hash of the file path, using method B. DWORD dwName2; } TSQPHash; typedef struct _TSQPBlock { // Offset of the beginning of the file, relative to the beginning of the archive. DWORD dwFilePos; // Flags for the file. See MPQ_FILE_XXXX constants DWORD dwFlags; // Compressed file size DWORD dwCSize; // Uncompressed file size DWORD dwFSize; } TSQPBlock; //----------------------------------------------------------------------------- // Functions - SQP file format // This function converts SQP file header into MPQ file header DWORD ConvertSqpHeaderToFormat4( TMPQArchive * ha, ULONGLONG FileSize, DWORD dwFlags) { TSQPHeader * pSqpHeader = (TSQPHeader *)ha->HeaderData; TMPQHeader Header; // SQP files from War of the Immortal use MPQ file format with slightly // modified structure. These fields have different position: // // Offset TMPQHeader TSQPHeader // ------ ---------- ----------- // 000C wFormatVersion dwHashTablePos (lo) // 000E wSectorSize dwHashTablePos (hi) // 001C dwBlockTableSize (lo) wBlockSize // 001E dwHashTableSize (hi) wFormatVersion // Can't open the archive with certain flags if(dwFlags & MPQ_OPEN_FORCE_MPQ_V1) return ERROR_FILE_CORRUPT; // The file must not be greater than 4 GB if((FileSize >> 0x20) != 0) return ERROR_FILE_CORRUPT; // Translate the SQP header into a MPQ header memset(&Header, 0, sizeof(TMPQHeader)); Header.dwID = BSWAP_INT32_UNSIGNED(pSqpHeader->dwID); Header.dwHeaderSize = BSWAP_INT32_UNSIGNED(pSqpHeader->dwHeaderSize); Header.dwArchiveSize = BSWAP_INT32_UNSIGNED(pSqpHeader->dwArchiveSize); Header.dwHashTablePos = BSWAP_INT32_UNSIGNED(pSqpHeader->dwHashTablePos); Header.dwBlockTablePos = BSWAP_INT32_UNSIGNED(pSqpHeader->dwBlockTablePos); Header.dwHashTableSize = BSWAP_INT32_UNSIGNED(pSqpHeader->dwHashTableSize); Header.dwBlockTableSize = BSWAP_INT32_UNSIGNED(pSqpHeader->dwBlockTableSize); Header.wFormatVersion = BSWAP_INT16_UNSIGNED(pSqpHeader->wFormatVersion); Header.wSectorSize = BSWAP_INT16_UNSIGNED(pSqpHeader->wSectorSize); // Verify the SQP header if(Header.dwID == g_dwMpqSignature && Header.dwHeaderSize == sizeof(TSQPHeader) && Header.dwArchiveSize == FileSize) { // Check for fixed values of version and sector size if(Header.wFormatVersion == MPQ_FORMAT_VERSION_1 && Header.wSectorSize == 3) { // Initialize the fields of 3.0 header Header.ArchiveSize64 = Header.dwArchiveSize; Header.HashTableSize64 = Header.dwHashTableSize * sizeof(TMPQHash); Header.BlockTableSize64 = Header.dwBlockTableSize * sizeof(TMPQBlock); // Copy the converted MPQ header back memcpy(ha->HeaderData, &Header, sizeof(TMPQHeader)); // Mark this file as SQP file ha->pfnHashString = HashStringSlash; ha->dwFlags |= MPQ_FLAG_READ_ONLY; ha->dwSubType = MPQ_SUBTYPE_SQP; return ERROR_SUCCESS; } } return ERROR_FILE_CORRUPT; } void * LoadSqpTable(TMPQArchive * ha, DWORD dwByteOffset, DWORD cbTableSize, DWORD dwKey) { ULONGLONG ByteOffset; LPBYTE pbSqpTable; // Allocate buffer for the table pbSqpTable = STORM_ALLOC(BYTE, cbTableSize); if(pbSqpTable != NULL) { // Load the table ByteOffset = ha->MpqPos + dwByteOffset; if(FileStream_Read(ha->pStream, &ByteOffset, pbSqpTable, cbTableSize)) { // Decrypt the SQP table DecryptMpqBlock(pbSqpTable, cbTableSize, dwKey); return pbSqpTable; } // Free the table STORM_FREE(pbSqpTable); } return NULL; } TMPQHash * LoadSqpHashTable(TMPQArchive * ha) { TMPQHeader * pHeader = ha->pHeader; TSQPHash * pSqpHashTable; TSQPHash * pSqpHashEnd; TSQPHash * pSqpHash; TMPQHash * pMpqHash; DWORD dwErrCode = ERROR_SUCCESS; // Load the hash table pSqpHashTable = (TSQPHash *)LoadSqpTable(ha, pHeader->dwHashTablePos, pHeader->dwHashTableSize * sizeof(TSQPHash), MPQ_KEY_HASH_TABLE); if(pSqpHashTable != NULL) { // Parse the entire hash table and convert it to MPQ hash table pSqpHashEnd = pSqpHashTable + pHeader->dwHashTableSize; pMpqHash = (TMPQHash *)pSqpHashTable; for(pSqpHash = pSqpHashTable; pSqpHash < pSqpHashEnd; pSqpHash++, pMpqHash++) { // Ignore free entries if(pSqpHash->dwBlockIndex != HASH_ENTRY_FREE) { // Check block index against the size of the block table if(pHeader->dwBlockTableSize <= MPQ_BLOCK_INDEX(pSqpHash) && pSqpHash->dwBlockIndex < HASH_ENTRY_DELETED) dwErrCode = ERROR_FILE_CORRUPT; // We do not support nonzero locale and platform ID if(pSqpHash->dwAlwaysZero != 0 && pSqpHash->dwAlwaysZero != HASH_ENTRY_FREE) dwErrCode = ERROR_FILE_CORRUPT; // Store the file name hash pMpqHash->dwName1 = pSqpHash->dwName1; pMpqHash->dwName2 = pSqpHash->dwName2; // Store the rest. Note that this must be done last, // because block index corresponds to pMpqHash->dwName2 pMpqHash->dwBlockIndex = MPQ_BLOCK_INDEX(pSqpHash); pMpqHash->Platform = 0; pMpqHash->lcLocale = 0; } } // If an error occured, we need to free the hash table if(dwErrCode != ERROR_SUCCESS) { STORM_FREE(pSqpHashTable); pSqpHashTable = NULL; } } // Return the converted hash table (or NULL on failure) return (TMPQHash *)pSqpHashTable; } // Loads the SQP Block table and converts it to a MPQ block table TMPQBlock * LoadSqpBlockTable(TMPQArchive * ha) { TMPQHeader * pHeader = ha->pHeader; TSQPBlock * pSqpBlockTable; TSQPBlock * pSqpBlockEnd; TSQPBlock * pSqpBlock; TMPQBlock * pMpqBlock; DWORD dwFlags; DWORD dwErrCode = ERROR_SUCCESS; // Load the hash table pSqpBlockTable = (TSQPBlock *)LoadSqpTable(ha, pHeader->dwBlockTablePos, pHeader->dwBlockTableSize * sizeof(TSQPBlock), MPQ_KEY_BLOCK_TABLE); if(pSqpBlockTable != NULL) { // Parse the entire hash table and convert it to MPQ hash table pSqpBlockEnd = pSqpBlockTable + pHeader->dwBlockTableSize; pMpqBlock = (TMPQBlock *)pSqpBlockTable; for(pSqpBlock = pSqpBlockTable; pSqpBlock < pSqpBlockEnd; pSqpBlock++, pMpqBlock++) { // Check for valid flags if(pSqpBlock->dwFlags & ~MPQ_FILE_VALID_FLAGS) dwErrCode = ERROR_FILE_CORRUPT; // Convert SQP block table entry to MPQ block table entry dwFlags = pSqpBlock->dwFlags; pMpqBlock->dwCSize = pSqpBlock->dwCSize; pMpqBlock->dwFSize = pSqpBlock->dwFSize; pMpqBlock->dwFlags = dwFlags; } // If an error occured, we need to free the hash table if(dwErrCode != ERROR_SUCCESS) { STORM_FREE(pSqpBlockTable); pSqpBlockTable = NULL; } } // Return the converted hash table (or NULL on failure) return (TMPQBlock *)pSqpBlockTable; } /*****************************************************************************/ /* */ /* Support for MPK file format (Longwu Online) */ /* */ /*****************************************************************************/ #define MPK_FILE_UNKNOWN_0001 0x00000001 // Seems to be always present #define MPK_FILE_UNKNOWN_0010 0x00000010 // Seems to be always present #define MPK_FILE_COMPRESSED 0x00000100 // Indicates a compressed file #define MPK_FILE_UNKNOWN_2000 0x00002000 // Seems to be always present #define MPK_FILE_EXISTS 0x01000000 // Seems to be always present typedef struct _TMPKHeader { // The ID_MPK ('MPK\x1A') signature DWORD dwID; // Contains '2000' DWORD dwVersion; // 32-bit size of the archive DWORD dwArchiveSize; // Size of the archive header DWORD dwHeaderSize; DWORD dwHashTablePos; DWORD dwHashTableSize; DWORD dwBlockTablePos; DWORD dwBlockTableSize; DWORD dwUnknownPos; DWORD dwUnknownSize; } TMPKHeader; typedef struct _TMPKHash { // The hash of the file path, using method A. DWORD dwName1; // The hash of the file path, using method B. DWORD dwName2; // The hash of the file path, using method C. DWORD dwName3; // If the hash table entry is valid, this is the index into the block table of the file. // Otherwise, one of the following two values: // - FFFFFFFFh: Hash table entry is empty, and has always been empty. // Terminates searches for a given file. // - FFFFFFFEh: Hash table entry is empty, but was valid at some point (a deleted file). // Does not terminate searches for a given file. DWORD dwBlockIndex; } TMPKHash; typedef struct _TMPKBlock { DWORD dwFlags; // 0x1121 - Compressed , 0x1120 - Not compressed DWORD dwFilePos; // Offset of the beginning of the file, relative to the beginning of the archive. DWORD dwFSize; // Uncompressed file size DWORD dwCSize; // Compressed file size DWORD dwUnknown; // 0x86364E6D } TMPKBlock; //----------------------------------------------------------------------------- // Local variables - MPK file format static const unsigned char MpkDecryptionKey[512] = { 0x60, 0x20, 0x29, 0xE1, 0x01, 0xCE, 0xAA, 0xFE, 0xA3, 0xAB, 0x8E, 0x30, 0xAF, 0x02, 0xD1, 0x7D, 0x41, 0x24, 0x06, 0xBD, 0xAE, 0xBE, 0x43, 0xC3, 0xBA, 0xB7, 0x08, 0x13, 0x51, 0xCF, 0xF8, 0xF7, 0x25, 0x42, 0xA5, 0x4A, 0xDA, 0x0F, 0x52, 0x1C, 0x90, 0x3B, 0x63, 0x49, 0x36, 0xF6, 0xDD, 0x1B, 0xEA, 0x58, 0xD4, 0x40, 0x70, 0x61, 0x55, 0x09, 0xCD, 0x0B, 0xA2, 0x4B, 0x68, 0x2C, 0x8A, 0xF1, 0x3C, 0x3A, 0x65, 0xBB, 0xA1, 0xA8, 0x23, 0x97, 0xFD, 0x15, 0x00, 0x94, 0x88, 0x33, 0x59, 0xE9, 0xFB, 0x69, 0x21, 0xEF, 0x85, 0x5B, 0x57, 0x6C, 0xFA, 0xB5, 0xEE, 0xB8, 0x71, 0xDC, 0xB1, 0x38, 0x0C, 0x0A, 0x5C, 0x56, 0xC9, 0xB4, 0x84, 0x17, 0x1E, 0xE5, 0xD3, 0x5A, 0xCC, 0xFC, 0x11, 0x86, 0x7F, 0x45, 0x4F, 0x54, 0xC8, 0x8D, 0x73, 0x89, 0x79, 0x5D, 0xB3, 0xBF, 0xB9, 0xE3, 0x93, 0xE4, 0x6F, 0x35, 0x2D, 0x46, 0xF2, 0x76, 0xC5, 0x7E, 0xE2, 0xA4, 0xE6, 0xD9, 0x6E, 0x48, 0x34, 0x2B, 0xC6, 0x5F, 0xBC, 0xA0, 0x6D, 0x0D, 0x47, 0x6B, 0x95, 0x96, 0x92, 0x91, 0xB2, 0x27, 0xEB, 0x9E, 0xEC, 0x8F, 0xDF, 0x9C, 0x74, 0x99, 0x64, 0xF5, 0xFF, 0x28, 0xB6, 0x37, 0xF3, 0x7C, 0x81, 0x03, 0x44, 0x62, 0x1F, 0xDB, 0x04, 0x7B, 0xB0, 0x9B, 0x31, 0xA7, 0xDE, 0x78, 0x9F, 0xAD, 0x0E, 0x3F, 0x3E, 0x4D, 0xC7, 0xD7, 0x39, 0x19, 0x5E, 0xC2, 0xD0, 0xAC, 0xE8, 0x1A, 0x87, 0x8B, 0x07, 0x05, 0x22, 0xED, 0x72, 0x2E, 0x1D, 0xC1, 0xA9, 0xD6, 0xE0, 0x83, 0xD5, 0xD8, 0xCB, 0x80, 0xF0, 0x66, 0x7A, 0x9D, 0x50, 0xF9, 0x10, 0x4E, 0x16, 0x14, 0x77, 0x75, 0x6A, 0x67, 0xD2, 0xC0, 0xA6, 0xC4, 0x53, 0x8C, 0x32, 0xCA, 0x82, 0x2A, 0x18, 0x9A, 0xF4, 0x4C, 0x3D, 0x26, 0x12, 0xE7, 0x98, 0x2F, 0x4A, 0x04, 0x0D, 0xAF, 0xB4, 0xCF, 0x12, 0xCE, 0x1A, 0x37, 0x61, 0x39, 0x60, 0x95, 0xBE, 0x25, 0xE4, 0x6E, 0xFC, 0x1B, 0xE7, 0x49, 0xE6, 0x67, 0xF6, 0xC5, 0xCB, 0x2F, 0x27, 0xD4, 0x68, 0xB2, 0x01, 0x52, 0xD0, 0x46, 0x11, 0x20, 0xFB, 0x9D, 0xA9, 0x02, 0xF5, 0x8F, 0x3D, 0x82, 0xD3, 0xFF, 0x0B, 0xB8, 0xF2, 0x4D, 0x8E, 0x81, 0x2C, 0xAB, 0x5F, 0xC4, 0x41, 0x29, 0x40, 0xFA, 0xC0, 0xBF, 0x33, 0x10, 0x21, 0x16, 0xB0, 0x71, 0x83, 0x96, 0x8D, 0x2B, 0x23, 0x3B, 0xF9, 0xC1, 0xE5, 0x72, 0xE2, 0x1C, 0x26, 0xF0, 0x73, 0x36, 0x63, 0x56, 0x31, 0x4E, 0x6B, 0x55, 0x62, 0x79, 0xC6, 0x91, 0x00, 0x35, 0xB1, 0x2A, 0xA6, 0x42, 0xDF, 0xEB, 0x3C, 0x51, 0xEA, 0x97, 0x57, 0x94, 0x8C, 0x80, 0x34, 0x5C, 0xD2, 0x76, 0xA4, 0xE9, 0x85, 0xE8, 0xBB, 0x78, 0xE0, 0xB5, 0xAD, 0x0F, 0x87, 0x70, 0xDD, 0xAE, 0xF4, 0xD9, 0x66, 0x54, 0x6F, 0xCC, 0x4C, 0x77, 0x3E, 0xCD, 0xF1, 0x75, 0x0A, 0xA1, 0x28, 0x9B, 0x9A, 0x7E, 0x4B, 0x98, 0x99, 0x47, 0xFE, 0xA5, 0xF7, 0xB7, 0xA3, 0xE1, 0x9F, 0xBC, 0x93, 0x44, 0x3A, 0x08, 0x89, 0x22, 0xEE, 0xB9, 0x45, 0xD6, 0x06, 0x09, 0xC9, 0xBD, 0x14, 0x0C, 0xB6, 0x5E, 0x9C, 0x7A, 0x65, 0x59, 0xAA, 0x19, 0x5B, 0x7C, 0x18, 0x43, 0x92, 0x13, 0x15, 0x7B, 0xED, 0xD5, 0xC7, 0x17, 0xEF, 0x86, 0x90, 0xC2, 0x74, 0x64, 0xF3, 0xDC, 0x6C, 0x38, 0x05, 0x1D, 0xC8, 0x0E, 0xEC, 0x6A, 0x32, 0xDA, 0xD7, 0xC3, 0xDB, 0x8B, 0x24, 0xB3, 0x5D, 0x2E, 0xBA, 0xA2, 0xD8, 0x03, 0x88, 0x7D, 0x7F, 0x69, 0x8A, 0xFD, 0xCA, 0x4F, 0x30, 0x9E, 0xA0, 0xD1, 0x5A, 0x53, 0xDE, 0x3F, 0x84, 0xAC, 0xF8, 0xA7, 0x2D, 0x1F, 0x1E, 0xE3, 0x58, 0x50, 0x6D, 0x48, 0x07, 0xA8 }; //----------------------------------------------------------------------------- // Functions - MPK file format // This function converts MPK file header into MPQ file header DWORD ConvertMpkHeaderToFormat4( TMPQArchive * ha, ULONGLONG FileSize, DWORD dwFlags) { TMPKHeader * pMpkHeader = (TMPKHeader *)ha->HeaderData; TMPQHeader Header; // Can't open the archive with certain flags if(dwFlags & MPQ_OPEN_FORCE_MPQ_V1) return ERROR_FILE_CORRUPT; // Translate the MPK header into a MPQ header // Note: Hash table size and block table size are in bytes, not in entries memset(&Header, 0, sizeof(TMPQHeader)); Header.dwID = BSWAP_INT32_UNSIGNED(pMpkHeader->dwID); Header.dwArchiveSize = BSWAP_INT32_UNSIGNED(pMpkHeader->dwArchiveSize); Header.dwHeaderSize = BSWAP_INT32_UNSIGNED(pMpkHeader->dwHeaderSize); Header.dwHashTablePos = BSWAP_INT32_UNSIGNED(pMpkHeader->dwHashTablePos); Header.dwHashTableSize = BSWAP_INT32_UNSIGNED(pMpkHeader->dwHashTableSize) / sizeof(TMPKHash); Header.dwBlockTablePos = BSWAP_INT32_UNSIGNED(pMpkHeader->dwBlockTablePos); Header.dwBlockTableSize = BSWAP_INT32_UNSIGNED(pMpkHeader->dwBlockTableSize) / sizeof(TMPKBlock); // Header.dwUnknownPos = BSWAP_INT32_UNSIGNED(pMpkHeader->dwUnknownPos); // Header.dwUnknownSize = BSWAP_INT32_UNSIGNED(pMpkHeader->dwUnknownSize); assert(Header.dwHeaderSize == sizeof(TMPKHeader)); // Verify the MPK header if(Header.dwID == ID_MPK && Header.dwHeaderSize == sizeof(TMPKHeader) && Header.dwArchiveSize == (DWORD)FileSize) { // The header ID must be ID_MPQ Header.dwID = g_dwMpqSignature; Header.wFormatVersion = MPQ_FORMAT_VERSION_1; Header.wSectorSize = 3; // Initialize the fields of 3.0 header Header.ArchiveSize64 = Header.dwArchiveSize; Header.HashTableSize64 = Header.dwHashTableSize * sizeof(TMPQHash); Header.BlockTableSize64 = Header.dwBlockTableSize * sizeof(TMPQBlock); // Copy the converted MPQ header back memcpy(ha->HeaderData, &Header, sizeof(TMPQHeader)); // Mark this file as MPK file ha->pfnHashString = HashStringLower; ha->dwFlags |= MPQ_FLAG_READ_ONLY; ha->dwSubType = MPQ_SUBTYPE_MPK; return ERROR_SUCCESS; } return ERROR_FILE_CORRUPT; } // Attempts to search a free hash entry in the hash table being converted. // The created hash table must always be of nonzero size, // should have no duplicated items and no deleted entries TMPQHash * FindFreeHashEntry(TMPQHash * pHashTable, DWORD dwHashTableSize, DWORD dwStartIndex) { TMPQHash * pHash; DWORD dwIndex; // Set the initial index dwStartIndex = dwIndex = (dwStartIndex & (dwHashTableSize - 1)); assert(dwHashTableSize != 0); // Search the hash table and return the found entries in the following priority: for(;;) { // We are not expecting to find matching entry in the hash table being built // We are not expecting to find deleted entry either pHash = pHashTable + dwIndex; // If we found a free entry, we need to stop searching if(pHash->dwBlockIndex == HASH_ENTRY_FREE) return pHash; // Move to the next hash entry. // If we reached the starting entry, it's failure. dwIndex = (dwIndex + 1) & (dwHashTableSize - 1); if(dwIndex == dwStartIndex) break; } // We haven't found anything assert(false); return NULL; } void DecryptMpkTable(void * pvMpkTable, size_t cbSize) { LPBYTE pbMpkTable = (LPBYTE)pvMpkTable; for(size_t i = 0; i < cbSize; i++) pbMpkTable[i] = MpkDecryptionKey[pbMpkTable[i]]; } void * LoadMpkTable(TMPQArchive * ha, DWORD dwByteOffset, DWORD cbTableSize) { ULONGLONG ByteOffset; LPBYTE pbMpkTable = NULL; // Allocate space for the table pbMpkTable = STORM_ALLOC(BYTE, cbTableSize); if(pbMpkTable != NULL) { // Load and the MPK hash table ByteOffset = ha->MpqPos + dwByteOffset; if(FileStream_Read(ha->pStream, &ByteOffset, pbMpkTable, cbTableSize)) { // Decrypt the table DecryptMpkTable(pbMpkTable, cbTableSize); return pbMpkTable; } // Free the MPK table STORM_FREE(pbMpkTable); pbMpkTable = NULL; } // Return the table return pbMpkTable; } TMPQHash * LoadMpkHashTable(TMPQArchive * ha) { TMPQHeader * pHeader = ha->pHeader; TMPQHash * pHashTable = NULL; TMPKHash * pMpkHash; TMPQHash * pHash = NULL; DWORD dwHashTableSize = pHeader->dwHashTableSize; // MPKs use different hash table searching. // Instead of using MPQ_HASH_TABLE_INDEX hash as index, // they store the value directly in the hash table. // Also for faster searching, the hash table is sorted ascending by the value // Load and decrypt the MPK hash table. pMpkHash = (TMPKHash *)LoadMpkTable(ha, pHeader->dwHashTablePos, pHeader->dwHashTableSize * sizeof(TMPKHash)); if(pMpkHash != NULL) { // Calculate the hash table size as if it was real MPQ hash table pHeader->dwHashTableSize = GetNearestPowerOfTwo(pHeader->dwHashTableSize); pHeader->HashTableSize64 = pHeader->dwHashTableSize * sizeof(TMPQHash); // Now allocate table that will serve like a true MPQ hash table, // so we translate the MPK hash table to MPQ hash table pHashTable = STORM_ALLOC(TMPQHash, pHeader->dwHashTableSize); if(pHashTable != NULL) { // Set the entire hash table to free memset(pHashTable, 0xFF, (size_t)pHeader->HashTableSize64); // Copy the MPK hash table into MPQ hash table for(DWORD i = 0; i < dwHashTableSize; i++) { // Finds the free hash entry in the hash table // We don't expect any errors here, because we are putting files to empty hash table pHash = FindFreeHashEntry(pHashTable, pHeader->dwHashTableSize, pMpkHash[i].dwName1); assert(pHash->dwBlockIndex == HASH_ENTRY_FREE); // Copy the MPK hash entry to the hash table pHash->dwBlockIndex = pMpkHash[i].dwBlockIndex; pHash->Platform = 0; pHash->lcLocale = 0; pHash->dwName1 = pMpkHash[i].dwName2; pHash->dwName2 = pMpkHash[i].dwName3; } } // Free the temporary hash table STORM_FREE(pMpkHash); } return pHashTable; } static DWORD ConvertMpkFlagsToMpqFlags(DWORD dwMpkFlags) { DWORD dwMpqFlags = MPQ_FILE_EXISTS; // Check for flags that are always present assert((dwMpkFlags & MPK_FILE_UNKNOWN_0001) != 0); assert((dwMpkFlags & MPK_FILE_UNKNOWN_0010) != 0); assert((dwMpkFlags & MPK_FILE_UNKNOWN_2000) != 0); assert((dwMpkFlags & MPK_FILE_EXISTS) != 0); // Append the compressed flag dwMpqFlags |= (dwMpkFlags & MPK_FILE_COMPRESSED) ? MPQ_FILE_COMPRESS : 0; // All files in the MPQ seem to be single unit files dwMpqFlags |= MPQ_FILE_ENCRYPTED | MPQ_FILE_SINGLE_UNIT; return dwMpqFlags; } TMPQBlock * LoadMpkBlockTable(TMPQArchive * ha) { TMPQHeader * pHeader = ha->pHeader; TMPKBlock * pMpkBlockTable; TMPKBlock * pMpkBlockEnd; TMPQBlock * pBlockTable = NULL; TMPKBlock * pMpkBlock; TMPQBlock * pMpqBlock; // Load and decrypt the MPK block table pMpkBlockTable = pMpkBlock = (TMPKBlock *)LoadMpkTable(ha, pHeader->dwBlockTablePos, pHeader->dwBlockTableSize * sizeof(TMPKBlock)); if(pMpkBlockTable != NULL) { // Allocate buffer for MPQ-like block table pBlockTable = pMpqBlock = STORM_ALLOC(TMPQBlock, pHeader->dwBlockTableSize); if(pBlockTable != NULL) { // Convert the MPK block table to MPQ block table pMpkBlockEnd = pMpkBlockTable + pHeader->dwBlockTableSize; while(pMpkBlock < pMpkBlockEnd) { // Translate the MPK block table entry to MPQ block table entry pMpqBlock->dwFilePos = pMpkBlock->dwFilePos; pMpqBlock->dwCSize = pMpkBlock->dwCSize; pMpqBlock->dwFSize = pMpkBlock->dwFSize; pMpqBlock->dwFlags = ConvertMpkFlagsToMpqFlags(pMpkBlock->dwFlags); // Move both pMpkBlock++; pMpqBlock++; } } // Free the MPK block table STORM_FREE(pMpkBlockTable); } return pBlockTable; }