How enumerate all device objects?

Sor开发者_StackOverflow中文版ry for my English. I want to enumerate all pointers to the DEVICE_OBJECT's in the system. I know that this can be done from the user mode, but I forgot. May be with helping of ZwQueryDirectiryObject or SetupAPI..?

You can use NtQueryDirectoryObject, but that doesn't give you pointers to the DEVICE_OBJECTs. Try opening the device objects and then enumerating handles using NtQuerySystemInformation to get the pointers.