CmDeleteDeviceContainerRegKeyWorker

NTSTATUS __stdcall CmDeleteDeviceContainerRegKeyWorker(
        HPNPCTX *hPnpCtx,
        WCHAR *DeviceContainerId,
        WCHAR *CmKeyTypeFlags,
        INT64 HardwareProfileId,
        CHAR DeleteTree,
        INT64 a6,
        INT64 a8,
        INT64 C8,
        UINT64 *a9){
  WCHAR *PoolWithTag; 
  _CM_KEY_TYPE v10; 
  unsigned __int64 v13; 
  UINT64 i; 
  WCHAR *v15; 
  int DeviceContainerRegKeyPath; 
  WCHAR *v17; 
  HSYSCTX *v18; 
  unsigned __int16 Length; 
  WCHAR *v21; 
  unsigned __int8 v22; 
  VOID *v23; 
  __int64 v24; 
  VOID *v25; 
  int v26; 
  __int64 v27; 
  VOID *v28; 
  UINT64 v29; 
  WCHAR *BaseKeyPath; 
  UINT64 BaseKeyLength; 
  UINT64 *RequiredLength; 
  VOID *Handle; 
  INT64 v34; 
  _UNICODE_STRING DestinationString; 
  UINT64 v36; 

  PoolWithTag = 0i64;
  LODWORD(v36) = 0;
  v10 = (int)CmKeyTypeFlags;
  v34 = 0i64;
  Handle = 0i64;
  DestinationString = 0i64;
  if( !(_DWORD)CmKeyTypeFlags || ((unsigned int)CmKeyTypeFlags & 0xFFFFFEAF) != 0 )
    goto LABEL_45;
  LODWORD(v13) = 260;
  for( i = 260i64; ; i = (unsigned int)v13 )
  {
    PoolWithTag = (WCHAR *)ExAllocatePoolWithTag(1ui64, i, 1380994640i64);
    if( !PoolWithTag )
      break;
    LODWORD(BaseKeyLength) = (unsigned int)v13 >> 1;
    DeviceContainerRegKeyPath = CmGetDeviceContainerRegKeyPath(
                                  (HPNPCTX *)((unsigned int)v13 >> 1),
                                  DeviceContainerId,
                                  v10,
                                  v15,
                                  v29,
                                  PoolWithTag,
                                  BaseKeyLength,
                                  &v36);
    if( DeviceContainerRegKeyPath != -1073741789 )
      goto LABEL_6;
    ExFreePoolWithTag(PoolWithTag, 0);
    PoolWithTag = 0i64;
    v13 = 2i64 * (unsigned int)v36;
    if( v13 > 0xFFFFFFFF )
    {
      DeviceContainerRegKeyPath = -1073741675;
      goto LABEL_11;
    }
  }
  DeviceContainerRegKeyPath = -1073741801;
LABEL_6:
  if( DeviceContainerRegKeyPath < 0 )
    goto LABEL_11;
  if( (v10 & 0x100) == 0 )
  {
    DeviceContainerRegKeyPath = RtlInitUnicodeStringEx(&DestinationString, PoolWithTag);
    if( DeviceContainerRegKeyPath < 0 )
      goto LABEL_11;
    Length = DestinationString.Length;
    if( DestinationString.Length < (unsigned int)v13
      && DestinationString.Length > 0x32u
      && (unsigned __int8)RtlPrefixUnicodeString(
                            &`_CmDeleteDeviceContainerRegKeyWorker'::`2'::ObjectPathRootPrefix,
                            &DestinationString,
                            1u) )
    {
      v21 = PoolWithTag + 25;
      DestinationString.MaximumLength -= 50;
      DestinationString.Buffer = PoolWithTag + 25;
      DestinationString.Length = Length - 50;
      v22 = (unsigned __int8)RtlPrefixUnicodeString(
                               &`_CmDeleteDeviceContainerRegKeyWorker'::`2'::DeviceContainersKeyPrefix,
                               &DestinationString,
                               1u);
      DeviceContainerRegKeyPath = PnpCtxGetCachedContextBaseKey(
                                    hPnpCtx,
                                    (PNPCTX_BASE_KEY_TYPE)(v22 != 0 ? PNPCTX_BASE_KEY_TYPE_CRITICALDEVICEDATABASE : PNPCTX_BASE_KEY_TYPE_CONTROLSET),
                                    (VOID **)&v34);
      if( DeviceContainerRegKeyPath < 0 )
        goto LABEL_11;
      v23 = (VOID *)v34;
      if( !v22 )
        v21 = PoolWithTag;
      v17 = v21 + 25;
      goto LABEL_24;
    }
LABEL_45:
    DeviceContainerRegKeyPath = -1073741811;
    goto LABEL_11;
  }
  v17 = PoolWithTag;
  if( hPnpCtx )
    v18 = (HSYSCTX *)*((_QWORD *)hPnpCtx + 28);
  else
    v18 = 0i64;
  DeviceContainerRegKeyPath = SysCtxRegOpenCurrentUserKey(
                                v18,
                                0,
                                0x2000000,
                                &Handle,
                                v29,
                                (INT64)BaseKeyPath,
                                BaseKeyLength,
                                (INT64)RequiredLength);
  if( DeviceContainerRegKeyPath < 0 )
    goto LABEL_11;
  v23 = Handle;
LABEL_24:
  if( DeleteTree )
  {
    if( hPnpCtx && (v24 = *((_QWORD *)hPnpCtx + 28)) != 0 )
      v25 = *(VOID **)(v24 + 8);
    else
      v25 = 0i64;
    v26 = RegRtlDeleteTreeInternal(v23, v17, v25, 0);
  }
  else
  {
    if( hPnpCtx && (v27 = *((_QWORD *)hPnpCtx + 28)) != 0 )
      v28 = *(VOID **)(v27 + 8);
    else
      v28 = 0i64;
    v26 = RegRtlDeleteKeyTransacted(v23, v17, v28);
  }
  if( (int)(v26 + 0x80000000) >= 0 && v26 != -1073741444 )
    DeviceContainerRegKeyPath = v26;
LABEL_11:
  if( Handle )
    ZwClose((_HANDLE)Handle);
  if( PoolWithTag )
    ExFreePoolWithTag(PoolWithTag, 0);
  return DeviceContainerRegKeyPath;
}

Referenced by: