CmGetDeviceContainerIdFromBase

NTSTATUS __stdcall CmGetDeviceContainerIdFromBase(
        HPNPCTX *hPnpCtx,
        const WCHAR *DeviceInstanceId,
        const WCHAR *BaseContainerId,
        WCHAR *ContainerId,
        UINT64 ContainerIdLength){
  unsigned int v5; 
  int CachedContextBaseKey; 
  NTSTATUS v12; 
  WCHAR *v13; 
  NTSTATUS v14; 
  WCHAR *DeviceInstanceIda; 
  UINT8 *BaseInContainer; 
  UINT8 *DeviceInContainer; 
  INT64 v18; 
  UINT8 v19; 
  UINT8 v20[7]; 
  INT64 v21; 
  __int64 KeyNameLength[2]; 
  WCHAR KeyName[40]; 

  v5 = 0;
  v21 = 0i64;
  v20[0] = 0;
  v19 = 0;
  CachedContextBaseKey = RtlStringCchCopyW(ContainerId, 0x27ui64, (WCHAR *)BaseContainerId);
  if( CachedContextBaseKey >= 0 )
  {
    if( wcscmp((PWCHAR)L"{00000000-0000-0000-0000-000000000000}", (PWCHAR)BaseContainerId) )
    {
      CachedContextBaseKey = PnpCtxGetCachedContextBaseKey(
                               hPnpCtx,
                               PNPCTX_BASE_KEY_TYPE_CRITICALDEVICEDATABASE,
                               (VOID **)&v21);
      if( CachedContextBaseKey >= 0 )
      {
        CachedContextBaseKey = CmIsDeviceInContainer(
                                 hPnpCtx,
                                 (VOID *)v21,
                                 (WCHAR *)BaseContainerId,
                                 (WCHAR *)BaseContainerId,
                                 (WCHAR *)DeviceInstanceId,
                                 v20,
                                 &v19);
        if( CachedContextBaseKey >= 0 && !v19 )
        {
          while( 1 )
          {
            LODWORD(KeyNameLength[0]) = 39;
            v12 = RegRtlEnumKey(
                    (VOID *)v21,
                    v5,
                    KeyName,
                    (UINT64 *)KeyNameLength,
                    (INT64)DeviceInstanceIda,
                    (INT64)BaseInContainer,
                    (INT64)DeviceInContainer,
                    v18);
            CachedContextBaseKey = v12;
            if( v12 == -2147483622 )
              break;
            if( v12 != -1073741789 )
            {
              if( v12 < 0 )
                return CachedContextBaseKey;
              v14 = CmValidateDeviceContainerName(v13);
              CachedContextBaseKey = v14;
              if( v14 != -1073741773 )
              {
                if( v14 < 0 )
                  return CachedContextBaseKey;
                CachedContextBaseKey = CmIsDeviceInContainer(
                                         hPnpCtx,
                                         (VOID *)v21,
                                         KeyName,
                                         (WCHAR *)BaseContainerId,
                                         (WCHAR *)DeviceInstanceId,
                                         v20,
                                         &v19);
                if( CachedContextBaseKey < 0 )
                  return CachedContextBaseKey;
                if( v20[0] )
                  CachedContextBaseKey = RtlStringCchCopyW(ContainerId, 0x27ui64, KeyName);
                if( CachedContextBaseKey < 0 || v19 )
                  return CachedContextBaseKey;
              }
            }
            ++v5;
          }
          return 0;
        }
      }
    }
  }
  return CachedContextBaseKey;
}

Referenced by: