PiPnpRtlBeginOperation

NTSTATUS __stdcall PiPnpRtlBeginOperation(HPNPOPCTX **hPnpOpCtx){
  _ETHREAD *CurrentThread; 
  NTSTATUS CurrentOperation; 
  NTSTATUS v4; 
  HPNPOPCTX *v5; 
  VOID **PoolWithTag; 
  VOID **v7; 
  _ETHREAD *v8; 
  INT64 v9; 
  __int64 v10; 
  _QWORD *v11; 
  VOID *FreeRoutine; 

  CurrentThread = (_ETHREAD *)KeGetCurrentThread();
  *hPnpOpCtx = 0i64;
  FreeRoutine = 0i64;
  CurrentOperation = PiPnpRtlGetCurrentOperation((PI_PNPRTL_OPERATION **)&FreeRoutine);
  v4 = CurrentOperation;
  if( CurrentOperation == -1073741275 )
  {
    v4 = 0;
  }
  else if( CurrentOperation < 0 )
  {
    return v4;
  }
  v5 = (HPNPOPCTX *)FreeRoutine;
  if( FreeRoutine )
  {
    ++*((_DWORD *)FreeRoutine + 36);
  }
  else
  {
    PoolWithTag = ExAllocatePoolWithTag(1ui64, 0x98ui64, 1097887312i64);
    FreeRoutine = PoolWithTag;
    v7 = PoolWithTag;
    if( !PoolWithTag )
      return -1073741670;
    *((_DWORD *)PoolWithTag + 36) = 1;
    PoolWithTag[2] = CurrentThread;
    RtlInitializeGenericTableAvl(
      (PRTL_AVL_TABLE)(PoolWithTag + 3),
      (PRTL_AVL_COMPARE_ROUTINE)PiPnpRtlObjectEventCompareObjects,
      (PRTL_AVL_ALLOCATE_ROUTINE)PiPnpRtlOperationAllocateGenericTableEntry,
      (PRTL_AVL_FREE_ROUTINE)PiPnpRtlOperationFreeGenericTableEntry,
      0i64);
    v7[17] = v7 + 16;
    v7[16] = v7 + 16;
    v8 = (_ETHREAD *)KeGetCurrentThread();
    --v8->Tcb.KernelApcDisable;
    ExAcquireResourceExclusiveLite((UINT64)&PnpReplaceEvent + 3584, 1, v9);
    v10 = *(&PnpReplaceEvent + 428);
    if( *(_UNKNOWN **)(*(&PnpReplaceEvent + 428) + 8i64) != (_UNKNOWN *)((char *)&PnpReplaceEvent + 3424) )
      __fastfail(3u);
    v11 = FreeRoutine;
    *(_QWORD *)FreeRoutine = *(&PnpReplaceEvent + 428);
    v11[1] = (char *)&PnpReplaceEvent + 3424;
    *(_QWORD *)(v10 + 8) = v11;
    *(&PnpReplaceEvent + 428) = v11;
    ExReleaseResourceLite((PERESOURCE)((char *)&PnpReplaceEvent + 3584));
    KeLeaveCriticalRegionThread(KeGetCurrentThread());
    v5 = (HPNPOPCTX *)FreeRoutine;
  }
  *hPnpOpCtx = v5;
  return v4;
}

Referenced by: