NtSetInformationDebugObject

INT64 __fastcall NtSetInformationDebugObject(
        VOID *DebugObjectHandle,
        INT64 DebugObjectInformationClass,
        VOID *DebugInformation,
        INT64 DebugInformationLength,
        UINT64 *ReturnLength,
        INT64 a6,
        INT64 a7,
        INT64 a8){
  int v8; 
  KPROCESSOR_MODE v10; 
  char *v11; 
  __int64 v12; 
  UINT64 *v13; 
  INT64 result; 
  int v15; 
  char *v16; 
  unsigned int v17; 
  PVOID Object; 
  v8 = DebugObjectInformationClass;
  v10 = *((_BYTE *)KeGetCurrentThread() + 562);
  if( !v10 )
  {
    v13 = ReturnLength;
LABEL_14:
    if( v13 )
      *(_DWORD *)v13 = 0;
    goto LABEL_16;
  }
  if( (_DWORD)DebugInformationLength )
  {
    if( ((unsigned __int8)DebugInformation & 3) != 0 )
      ExRaiseDatatypeMisalignment();
    v11 = (char *)DebugInformation + (unsigned int)DebugInformationLength;
    v12 = 0x7FFFFFFF0000i64;
    if( (unsigned __int64)v11 > 0x7FFFFFFF0000i64 || v11 < DebugInformation )
      MEMORY[0x7FFFFFFF0000] = 0;
  }
  else
  {
    v12 = 0x7FFFFFFF0000i64;
  }
  v13 = ReturnLength;
  if( ReturnLength )
  {
    if( (unsigned __int64)ReturnLength < 0x7FFFFFFF0000i64 )
      v12 = (__int64)ReturnLength;
    *(_DWORD *)v12 = *(_DWORD *)v12;
    goto LABEL_14;
  }
LABEL_16:
  if( v8 != 1 )
    return 3221225485i64;
  if( (_DWORD)DebugInformationLength == 4 )
  {
    v15 = *(_DWORD *)DebugInformation;
    if( (*(_DWORD *)DebugInformation & 0xFFFFFFFE) != 0 )
    {
      return 3221225485i64;
    }
    else
    {
      Object = 0i64;
      LODWORD(result) = ObReferenceObjectByHandle(DebugObjectHandle, 4u, DbgkDebugObjectType, v10, &Object, 0i64);
      if( (int)result >= 0 )
      {
        v16 = (char *)Object;
        ExAcquireFastMutex((FAST_MUTEX *)((char *)Object + 24));
        v17 = *((_DWORD *)v16 + 24) | 2;
        if( (v15 & 1) == 0 )
          v17 = *((_DWORD *)v16 + 24) & 0xFFFFFFFD;
        *((_DWORD *)v16 + 24) = v17;
        KeReleaseGuardedMutex((_FAST_MUTEX *)(v16 + 24));
        HalPutDmaAdapter((PADAPTER_OBJECT)v16);
        return 0i64;
      }
    }
  }
  else
  {
    if( v13 )
      *(_DWORD *)v13 = 4;
    return 3221225476i64;
  }
  return result;
}

Referenced by: