驅動程式 - Kernel Mode Driver Framework (KMDF) - 使用範例 - C/C++ (WDF) - PNP - Handle File IRP

參考資訊：
https://wasm.in/
http://four-f.narod.ru/
https://github.com/steward-fu/ddk

main.c

#include <ntddk.h>
#include <wdf.h>
 
#define DEV_NAME L"\\Device\\MyDriver"
#define SYM_NAME L"\\DosDevices\\MyDriver"
 
void IrpFileCreate(WDFDEVICE myDevice, WDFREQUEST myRequest, WDFFILEOBJECT myFileObject)
{    
    DbgPrint("IRP_MJ_CREATE");
    WdfRequestComplete(myRequest, STATUS_SUCCESS);
}
 
void IrpFileClose(WDFFILEOBJECT myFileObject)
{
    DbgPrint("IRP_MJ_CLOSE");
}
 
void IrpRead(WDFQUEUE myQueue, WDFREQUEST myRequest, size_t myLen)
{
    DbgPrint("IRP_MJ_READ");
    WdfRequestCompleteWithInformation(myRequest, STATUS_SUCCESS, 0);
}
 
void IrpWrite(WDFQUEUE myQueue, WDFREQUEST myRequest, size_t myLen)
{
    DbgPrint("IRP_MJ_WRITE");
    WdfRequestCompleteWithInformation(myRequest, STATUS_SUCCESS, myLen);
}
 
NTSTATUS AddDevice(WDFDRIVER myDriver, PWDFDEVICE_INIT pMyDeviceInit)
{
    WDFDEVICE device = { 0 };
    UNICODE_STRING szDevName = { 0 };
    UNICODE_STRING szSymName = { 0 };
    WDF_IO_QUEUE_CONFIG io_cfg = { 0 };
    WDF_FILEOBJECT_CONFIG file_cfg = { 0 };
     
    RtlInitUnicodeString(&szDevName, DEV_NAME);
    RtlInitUnicodeString(&szSymName, SYM_NAME);
    WdfDeviceInitAssignName(pMyDeviceInit, &szDevName);
     
    WdfDeviceInitSetIoType(pMyDeviceInit, WdfDeviceIoBuffered);
    WDF_FILEOBJECT_CONFIG_INIT(&file_cfg, IrpFileCreate, IrpFileClose, NULL);
    WdfDeviceInitSetFileObjectConfig(pMyDeviceInit, &file_cfg, WDF_NO_OBJECT_ATTRIBUTES);
    WdfDeviceCreate(&pMyDeviceInit, WDF_NO_OBJECT_ATTRIBUTES, &device);
    WdfDeviceCreateSymbolicLink(device, &szSymName);
     
    WDF_IO_QUEUE_CONFIG_INIT_DEFAULT_QUEUE(&io_cfg, WdfIoQueueDispatchSequential);
    io_cfg.EvtIoRead = IrpRead;
    io_cfg.EvtIoWrite = IrpWrite;
    return WdfIoQueueCreate(device, &io_cfg, WDF_NO_OBJECT_ATTRIBUTES, WDF_NO_HANDLE);
}
 
NTSTATUS DriverEntry(PDRIVER_OBJECT pMyDriver, PUNICODE_STRING pRegistry)
{
    WDF_DRIVER_CONFIG config = { 0 };
 
    WDF_DRIVER_CONFIG_INIT(&config, AddDevice);
    return WdfDriverCreate(pMyDriver, pRegistry, WDF_NO_OBJECT_ATTRIBUTES, &config, WDF_NO_HANDLE);
}

app.c

#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#include <strsafe.h>
#include <setupapi.h>
  
int main(int argc, char* argv[])
{
    DWORD dwRet = 0;
    char szBuffer[32] = { "I am error" };
    HANDLE hFile = INVALID_HANDLE_VALUE;
  
    hFile = CreateFile("\\\\.\\MyDriver", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
    WriteFile(hFile, szBuffer, strlen(szBuffer), &dwRet, NULL);
    printf("WR: %s, %d\n", szBuffer, dwRet);
 
    memset(szBuffer, 0, sizeof(szBuffer));
    ReadFile(hFile, szBuffer, sizeof(szBuffer), &dwRet, NULL);
    printf("RD: %s, %d\n", szBuffer, dwRet);
    CloseHandle(hFile);
    return 0;
}

完成