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/*****************************************************************************/
/* overwatch.h Copyright (c) Ladislav Zezula 2023 */
/*---------------------------------------------------------------------------*/
/* Definitions for overwatch on-disk structures */
/*---------------------------------------------------------------------------*/
/* Date Ver Who Comment */
/* -------- ---- --- ------- */
/* 28.04.19 1.00 Lad The first version of CascStructs.h */
/*****************************************************************************/
#ifndef __CASC_OVERWATCH_H__
#define __CASC_OVERWATCH_H__
//-----------------------------------------------------------------------------
// Definitions
#define CASC_OVERWATCH_VERSION_122_PTR 47161
#define CASC_OVERWATCH_VERSION_148_PTR 68309
#define CASC_OVERWATCH_VERSION_152_PTR 72317
#define CASC_CMF_ENCRYPTED_MAGIC 0x636D66
#define CASC_AES_KEY_LENGTH 0x20
#define CASC_AES_IV_LENGTH 0x10
#define SHA1_DIGESTSIZE SHA1_HASH_SIZE // Used in cmf-key.cpp
//-----------------------------------------------------------------------------
// Data types used in cmf-key.cpp
typedef unsigned char byte;
typedef unsigned short ushort;
typedef unsigned int uint;
//-----------------------------------------------------------------------------
// Data structures related to Content Manifest Files (.cmf)
// 1.00+
struct CASC_CMF_HEADER_100
{
unsigned dwBuildVersion;
unsigned dwField04;
unsigned dwField08;
unsigned dwField10;
unsigned dwField14;
int nDataCount;
unsigned dwField1C;
int nEntryCount;
unsigned dwHeaderMagic;
};
// 1.22+
struct CASC_CMF_HEADER_122
{
unsigned dwBuildVersion;
unsigned dwField04;
unsigned dwField08;
unsigned dwField0C;
unsigned dwField10;
unsigned dwField14;
int nDataCount;
unsigned dwField1C;
int nEntryCount;
unsigned dwHeaderMagic;
};
// 1.48+
struct CASC_CMF_HEADER_148
{
unsigned dwBuildVersion;
unsigned dwField04;
unsigned dwField08;
unsigned dwField0C;
unsigned dwField10;
unsigned dwField14;
unsigned dwField18;
int nDataPatchRecordCount;
int nDataCount;
int nEntryPatchRecordCount;
int nEntryCount;
unsigned dwHeaderMagic;
};
// This structure has the members with the same names like CMFHeader in TACTLib
// This is because we reuse the C# code from that library as C++
struct CASC_CMF_HEADER
{
bool IsEncrypted() const
{
return ((m_magic >> 0x08) == CASC_CMF_ENCRYPTED_MAGIC);
}
byte GetVersion() const
{
return IsEncrypted() ? (byte)(m_magic & 0x000000FF) : (byte)((m_magic & 0xFF000000) >> 24);
}
uint GetNonEncryptedMagic() const
{
return (uint)(0x00666D63u | (GetVersion() << 24));
}
void operator = (const CASC_CMF_HEADER_100 & src)
{
memset(this, 0, sizeof(CASC_CMF_HEADER_148));
m_buildVersion = src.dwBuildVersion;
m_dataCount = src.nDataCount;
m_entryCount = src.nEntryCount;
m_magic = src.dwHeaderMagic;
}
void operator = (const CASC_CMF_HEADER_122 & src)
{
memset(this, 0, sizeof(CASC_CMF_HEADER_148));
m_buildVersion = src.dwBuildVersion;
m_dataCount = src.nDataCount;
m_entryCount = src.nEntryCount;
m_magic = src.dwHeaderMagic;
}
void operator = (const CASC_CMF_HEADER_148 & src)
{
// Copy 1:1
memcpy(this, &src, sizeof(CASC_CMF_HEADER_148));
}
uint m_buildVersion;
uint m_unk04;
uint m_unk08;
uint m_unk0C;
uint m_unk10;
uint m_unk14;
uint m_unk18;
int m_dataPatchRecordCount;
int m_dataCount;
int m_entryPatchRecordCount;
int m_entryCount;
uint m_magic;
};
typedef struct _CASC_CMF_HASH_ENTRY_100
{
BYTE GUID[8];
BYTE Size[4];
BYTE CKey[CASC_CKEY_SIZE];
} CASC_CMF_HASH_ENTRY_100, *PCASC_CMF_HASH_ENTRY_100;
typedef struct _CASC_CMF_HASH_ENTRY_135
{
BYTE GUID[8];
BYTE Size[4];
BYTE field_C;
BYTE CKey[CASC_CKEY_SIZE];
} CASC_CMF_HASH_ENTRY_135, *PCASC_CMF_HASH_ENTRY_135;
//-----------------------------------------------------------------------------
// Data structures related to Application Package Manifests (.apm)
#define CASC_APM_HEADER_MAGIC 0x00636D66
typedef struct _CASC_APM_HEADER_V1
{
ULONGLONG BuildVersion;
DWORD BuildNumber; // Build number of the game
DWORD PackageCount;
DWORD EntryCount;
DWORD HeaderMagic;
// Followed by the array of APM_ENTRY (count is in "EntryCount")
// Followed by the array of APM_PACKAGE (count is in "PackageCount")
} CASC_APM_HEADER_V1, *PCASC_APM_HEADER_V1;
#pragma pack(push, 4)
typedef struct _CASC_APM_HEADER_V2
{
ULONGLONG BuildNumber; // Build number of the game
ULONGLONG ZeroValue1;
DWORD ZeroValue2;
DWORD PackageCount;
DWORD ZeroValue3;
DWORD EntryCount;
DWORD HeaderMagic;
// Followed by the array of APM_ENTRY (count is in "EntryCount")
// Followed by the array of APM_PACKAGE (count is in "PackageCount")
} CASC_APM_HEADER_V2, *PCASC_APM_HEADER_V2;
#pragma pack(pop)
typedef struct _CASC_APM_HEADER
{
ULONGLONG BuildNumber;
DWORD PackageCount;
DWORD EntryCount;
DWORD HeaderMagic;
} CASC_APM_HEADER, *PCASC_APM_HEADER;
// On-disk format, size = 0x0C
typedef struct _CASC_APM_ENTRY_V1
{
DWORD Index;
BYTE HashValue[8];
} CASC_APM_ENTRY_V1, *PCASC_APM_ENTRY_V1;
// On-disk format, size = 0x14
typedef struct _CASC_APM_ENTRY_V2
{
DWORD Index;
BYTE HashValueA[8];
BYTE HashValueB[8];
} CASC_APM_ENTRY_V2, *PCASC_APM_ENTRY_V2;
// On-disk format
typedef struct _CASC_APM_PACKAGE_ENTRY_V1
{
ULONGLONG EntryPointGUID;
BYTE GUID[8];
ULONGLONG SecondaryGUID;
ULONGLONG Key;
ULONGLONG PackageGUID;
DWORD Unknown1;
DWORD ContentSize;
ULONGLONG Unknown3;
BYTE CKey[CASC_CKEY_SIZE]; // Content key
} CASC_APM_PACKAGE_ENTRY_V1, *PCASC_APM_PACKAGE_ENTRY_V1;
// On-disk format
typedef struct _CASC_APM_PACKAGE_ENTRY_V2
{
ULONGLONG GUID; // 077 file
ULONGLONG Unknown1;
ULONGLONG Unknown2;
ULONGLONG Unknown3;
} CASC_APM_PACKAGE_ENTRY_V2, *PCASC_APM_PACKAGE_ENTRY_V2;
//-----------------------------------------------------------------------------
// Functions common to both. Implemented in CascRootFile_OW.cpp
// Prepares the template of the asset file name. The file name is in format like:
// ContentManifestFiles\Windows-RCN\enUS\speech\05d0000000000086
size_t BuildAssetFileNameTemplate(
char * szNameTemplate, // File name template
size_t ccNameTemplate, // Offset of the plain name, relative to szNameTemplate
const char * szPrefix, // Top level folder name for asset files
const char * szAssetName // Plain name of the asset file ("Win_SPWin_RCN_LesES_EExt.apm")
);
// Inserts the asset file into the file tree.
DWORD InsertAssetFile(
TCascStorage * hs,
CASC_FILE_TREE & FileTree, // Reference to the file tree
char * szFileName, // Pointer to mutable asset file name template
size_t nPlainName, // Offset of the plain name in the name template
LPBYTE pbCKey, // Pointer to CKey (unaligned)
LPBYTE pbGuid // Pointer to file GUID (unaligned)
);
template <typename GUID_ENTRY>
DWORD InsertAssetFiles(
TCascStorage * hs,
CASC_FILE_TREE & FileTree, // Reference to the file tree
char * szFileName, // Pointer to mutable asset file name template
size_t nPlainName, // Offset of the plain name in the name template
GUID_ENTRY * pEntries, // Array of entries
size_t nEntries) // Number of entries
{
DWORD dwErrCode = ERROR_SUCCESS;
for(size_t i = 0; i < nEntries; i++)
{
dwErrCode = InsertAssetFile(hs, FileTree, szFileName, nPlainName, pEntries[i].CKey, pEntries[i].GUID);
if(dwErrCode != ERROR_SUCCESS)
break;
}
return dwErrCode;
}
#endif // __CASC_OVERWATCH_H__
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