EmpParseInfDatabase

NTSTATUS __stdcall EmpParseInfDatabase(PVOID InfImage, UINT64 ImageSize){
  unsigned int v2; 
  CHAR *v4; 
  PVOID *v5; 
  NTSTATUS v6; 
  char v7; 
  _ETHREAD *CurrentThread; 
  unsigned int SessionId; 
  char v10; 
  int v11; 
  bool v12; 
  __int64 v13; 
  unsigned __int64 v14; 
  int v15; 
  unsigned int v16; 
  __int64 v17; 
  INT64 v19[7]; 
  int v20; 
  v2 = ImageSize;
  ExAcquirePushLockExclusiveEx((UINT64)&EmpParseLock, 0i64);
  LODWORD(v19[0]) = 0;
  v4 = CmpParseInfBuffer((const CHAR *)InfImage, v2, v19);
  v5 = (PVOID *)v4;
  if( v4 )
  {
    v6 = EmpParseEntryTypes(v4);
    if( v6 >= 0 )
    {
      v6 = EmpParseCallbacks(v5);
      if( v6 >= 0 )
      {
        v6 = EmpParseRules(v5);
        if( v6 >= 0 )
        {
          v6 = EmpParseStrings(v5);
          if( v6 >= 0 )
            v6 = EmpParseTargetRules(v5);
        }
      }
    }
    CmpFreeSectionList(*v5);
    ExFreePoolWithTag(v5, 0);
  }
  else
  {
    v6 = -1073741816;
  }
  v7 = _InterlockedExchangeAdd64((volatile signed __int64 *)&EmpParseLock, 0xFFFFFFFFFFFFFFFFui64);
  if( (v7 & 2) != 0 && (v7 & 4) == 0 )
    ExfTryToWakePushLock((volatile INT64 *)&EmpParseLock);
  v20 = 0;
  CurrentThread = (_ETHREAD *)KeGetCurrentThread();
  if( (unsigned int)MiGetSystemRegionType((UINT64)&EmpParseLock) == 1 )
    SessionId = MmGetSessionIdEx(*((_QWORD *)CurrentThread + 23));
  else
    SessionId = -1;
  --*((_WORD *)CurrentThread + 243);
  v10 = ++*((_BYTE *)CurrentThread + 794);
  v11 = (*((char *)CurrentThread + 792) | *((char *)CurrentThread + 870)) ^ 0x3F;
  while( 1 )
  {
    v12 = !_BitScanReverse((unsigned int *)&v13, v11);
    if( v12 )
      break;
    v14 = *((_QWORD *)CurrentThread + 100) + 96 * v13;
    v11 &= ~(1 << v13);
    if( (*(_BYTE *)(v14 + 26) & 1) != 0
      && (*(_DWORD *)(v14 + 32) & 1) == 0
      && (*(_QWORD *)(v14 + 32) & 0x7FFFFFFFFFFFFFFCi64) == ((unsigned __int64)&EmpParseLock & 0x7FFFFFFFFFFFFFFCi64)
      && *(_DWORD *)(v14 + 40) == SessionId )
    {
      *(_BYTE *)(v14 + 26) &= ~1u;
      if( *(_QWORD *)(v14 + 32) )
      {
        if( v14 )
        {
          *(_BYTE *)(v14 + 32) |= 2u;
          if( *(__int64 *)(v14 + 32) < 0 )
            KiAbEntryRemoveFromTree(v14);
          v15 = *(_DWORD *)(v14 + 88) & 0x1FFFF;
          v16 = *(_DWORD *)(v14 + 88) & 0xFFFE0000;
          *(_BYTE *)(v14 + 25) &= ~1u;
          v20 = v15;
          *(_DWORD *)(v14 + 88) = v16;
          *(_QWORD *)(v14 + 32) = 0i64;
          v17 = (__int64)(v14 - *((_QWORD *)CurrentThread + 100)) / 96;
          if( v10 == 1 )
            *((_BYTE *)CurrentThread + 792) |= 1 << v17;
          else
            _InterlockedOr8((volatile signed __int8 *)CurrentThread + 870, 1 << v17);
          goto LABEL_23;
        }
        break;
      }
    }
  }
  if( (*((_DWORD *)CurrentThread + 30) & 0x10000) == 0 )
    KeBugCheckEx(0x162u, (ULONG_PTR)CurrentThread, (ULONG_PTR)&EmpParseLock, SessionId, 0i64);
LABEL_23:
  --*((_BYTE *)CurrentThread + 794);
  KiAbThreadRemoveBoosts((ULONG_PTR)CurrentThread, (__int64)&EmpParseLock, (unsigned int *)&v20);
  v12 = (*((_WORD *)CurrentThread + 243))++ == 0xFFFF;
  if( v12 && *((_ETHREAD **)CurrentThread + 19) != (_ETHREAD *)((char *)CurrentThread + 152) )
    KiCheckForKernelApcDelivery();
  return v6;
}

Referenced by: