參考資訊:
https://wasm.in/
http://four-f.narod.ru/
https://github.com/steward-fu/ddk
main.c
#include <wdm.h> #define DEV_NAME L"\\Device\\MyDriver" #define SYM_NAME L"\\DosDevices\\MyDriver" char szBuffer[255] = { 0 }; PDEVICE_OBJECT pNextDevice = NULL; NTSTATUS AddDevice(PDRIVER_OBJECT pMyDriver, PDEVICE_OBJECT pPhyDevice) { PDEVICE_OBJECT pMyDevice = NULL; UNICODE_STRING usDeviceName = { 0 }; UNICODE_STRING usSymbolName = { 0 }; RtlInitUnicodeString(&usDeviceName, DEV_NAME); IoCreateDevice(pMyDriver, 0, &usDeviceName, FILE_DEVICE_UNKNOWN, 0, FALSE, &pMyDevice); RtlInitUnicodeString(&usSymbolName, SYM_NAME); IoCreateSymbolicLink(&usSymbolName, &usDeviceName); pNextDevice = IoAttachDeviceToDeviceStack(pMyDevice, pPhyDevice); pMyDevice->Flags &= ~DO_DEVICE_INITIALIZING; pMyDevice->Flags |= DO_DIRECT_IO; return STATUS_SUCCESS; } void Unload(PDRIVER_OBJECT pMyDriver) { } NTSTATUS IrpPnp(PDEVICE_OBJECT pMyDevice, PIRP pIrp) { UNICODE_STRING usSymbolName = {0}; PIO_STACK_LOCATION pStack = IoGetCurrentIrpStackLocation(pIrp); if (pStack->MinorFunction == IRP_MN_REMOVE_DEVICE) { RtlInitUnicodeString(&usSymbolName, SYM_NAME); IoDeleteSymbolicLink(&usSymbolName); IoDetachDevice(pNextDevice); IoDeleteDevice(pMyDevice); IoCompleteRequest(pIrp, IO_NO_INCREMENT); return STATUS_SUCCESS; } IoSkipCurrentIrpStackLocation(pIrp); return IoCallDriver(pNextDevice, pIrp); } NTSTATUS IrpFile(PDEVICE_OBJECT pMyDevice, PIRP pIrp) { ULONG len = 0; PUCHAR pBuf = NULL; PIO_STACK_LOCATION pStack = IoGetCurrentIrpStackLocation(pIrp); switch (pStack->MajorFunction) { case IRP_MJ_CREATE: memset(szBuffer, 0, sizeof(szBuffer)); DbgPrint("IRP_MJ_CREATE"); break; case IRP_MJ_READ: pBuf = MmGetSystemAddressForMdlSafe(pIrp->MdlAddress, LowPagePriority); strcpy(pBuf, szBuffer); DbgPrint("IRP_MJ_READ"); pIrp->IoStatus.Status = STATUS_SUCCESS; pIrp->IoStatus.Information = strlen(szBuffer); break; case IRP_MJ_WRITE: len = MmGetMdlByteCount(pIrp->MdlAddress); pBuf = MmGetSystemAddressForMdlSafe(pIrp->MdlAddress, LowPagePriority); strcpy(szBuffer, pBuf); DbgPrint("IRP_MJ_WRITE"); DbgPrint("Buffer: %s, Length: %d", szBuffer, len); pIrp->IoStatus.Status = STATUS_SUCCESS; pIrp->IoStatus.Information = len; break; case IRP_MJ_CLOSE: DbgPrint("IRP_MJ_CLOSE"); break; } IoCompleteRequest(pIrp, IO_NO_INCREMENT); return STATUS_SUCCESS; } NTSTATUS DriverEntry(PDRIVER_OBJECT pMyDriver, PUNICODE_STRING pMyRegistry) { pMyDriver->MajorFunction[IRP_MJ_PNP] = IrpPnp; pMyDriver->MajorFunction[IRP_MJ_CREATE] = IrpFile; pMyDriver->MajorFunction[IRP_MJ_READ] = IrpFile; pMyDriver->MajorFunction[IRP_MJ_WRITE] = IrpFile; pMyDriver->MajorFunction[IRP_MJ_CLOSE] = IrpFile; pMyDriver->DriverExtension->AddDevice = AddDevice; pMyDriver->DriverUnload = Unload; return STATUS_SUCCESS; }
完成