驱动层怎样获得当前进程全路径名(1)
1 VXD
在win98中文操作系统第二版试验通过,使用VTLOOLSD。需要知道如下数据结构，这些结构在<<win95
系统奥秘>>有详细介绍，可参照kendiv的blog。
1.1 进程控制结构
typedef struct _PROCESS_DATABASE {
DWORD Type; //00h
DWORD cReference; //04h
DWORD un1; //08h
DWORD someEvent; //0Ch
DWORD TerminationStatus; //10h
DWORD un2; //14h
DWORD DefaultHeap; //18h
DWORD MemoryContext; //1Ch
DWORD flags; //20h
DWORD pPSP; //24h
WORD PSPSelector; //28h
WORD MTEIndex; //2Ah
WORD cThreads; //2Ch
WORD cNotTermThreads; //2Eh
WORD un3; //30h
WORD cRing0Threads; //32h
HANDLE HeapHandle; //34h
HTASK W16TDB; //38h
DWORD MemMapFiles; //3Ch
PEDB pEDB; //40h
PHANDLE_TABLE pHandleTable; //44h
PPDB ParentPDB; //48h
PMODREF MODREFlist; //4Ch
DWORD ThreadList; //50h
DWORD DebuggeeCB; //54h
DWORD LocalHeapFreeHead; //58h
DWORD InitialRing0ID; //5Ch
CRITICAL_SECTION crst; //60h
DWORD pConsole; //84h
DWORD tlsInUseBits1; //88h
DWORD tlsInUseBits2; //8Ch
DWORD ProcessDWORD; //90h
PPDB ProcessGroup; //94h
PMODREF pExeMODREF; //98h 指向当前进程模块描述符的指针
DWORD TopExcFilter; //9Ch
DWORD BasePriority; //A0h
DWORD HeapOwnList; //A4h
DWORD HeapHandleBlockList;//A8h
DWORD pSomeHeapPtr; //ACh
DWORD pConsoleProvider; //B0h
WORD EnvironSelector; //B4h
WORD ErrorMode; //B6H
DWORD pevtLoadFinished; //B8h
WORD UTState; //BCh
} *PPDB, PROCESS_DATABASE, *PPROCESS_DATABASE;
每个进程一个PDB，PDB的地址实际就是VWIN32_GetCurrentProcessHandle()的返回值。
1.2 模块描述符
typedef struct _MODREF
{
PMODREF pNextModRef; //00h
DWORD un1; //04h
DWORD un2; //08h
DWORD un3; //0Ch
WORD mteIndex; //10h 该模块在全局模块列表的索引
WORD un4; //12h
DWORD un5; //14h
PVOID ppdb; //18h
DWORD un6; //1Ch
DWORD un7; //20h
DWORD un8; //24h
} MODREF, *PMODREF;
进程的每一个Module都用一个这样的结构来描述
1.3 全局模块数组
typedef struct _IMTE
{
DWORD un1; //00h
PIMAGE_NT_HEADERS pNTHdr; //04h
DWORD un2; //08h
PSTR pszFileName; //0Ch 模块全路径名
PSTR pszModName; //10h
WORD cbFileName; //14h
WORD cbModName; //16h
DWORD un3; //18h
DWORD cSections; //1Ch
DWORD un5; //20h
DWORD baseAddress; //24h
WORD hModule16; //28h
WORD cUsage; //2Ah
DWORD offset; //2Ch
PSTR pszFileName2; //30h
WORD cbFileName2; //34h
DWORD pszModName2; //36h
WORD cbModName2; //3Ah
} IMTE, *PIMTE;
PIMTE ImteTable[];
系统维护一个全局数组,每加载一个模块系统在该数组添加一项,反之删除一项.该全局数组的地址在我的
测试系统上保存在0xBFFCAD24里.
1.4 获得进程名
如果使用上述结构注意使用PACK(0)来声明
PPDB pdb = (PPDB)VWIN32_GetCurrentProcessHandle();
PIMTE ** imte = (PIMTE **)0xBFFCAD24;
char * FullPath = ((* imte)[pdb->pExeMODREF->mteIndex])->pszFil