參考資訊:
https://wasm.in/
http://four-f.narod.ru/
https://github.com/steward-fu/ddk
main.pas
unit main; interface uses DDDK; const DEV_NAME = '\Device\MyDriver'; SYM_NAME = '\DosDevices\MyDriver'; function _DriverEntry(pMyDriver : PDRIVER_OBJECT; pMyRegistry : PUNICODE_STRING) : NTSTATUS; stdcall; implementation var pNextDevice : PDEVICE_OBJECT; szBuf : array[0..255] of char; procedure Unload(pMyDriver : PDRIVER_OBJECT); stdcall; begin end; function StartIo(pMyDevice : PDeviceObject; pIrp : PIrp) : NTSTATUS; stdcall; var dwLen : ULONG; pStack : PIO_STACK_LOCATION; begin dwLen := 0; pStack := IoGetCurrentIrpStackLocation(pIrp); if pStack^.MajorFunction = IRP_MJ_WRITE then begin DbgPrint('StartIo, IRP_MJ_WRITE', []); dwLen := pStack.Parameters.Write.Length; memcpy(@szBuf[0], pIrp^.AssociatedIrp.SystemBuffer, dwLen); DbgPrint('Buffer: %s, Length: %d', [szBuf, dwLen]); end else if pStack^.MajorFunction = IRP_MJ_READ then begin DbgPrint('StartIo, IRP_MJ_READ', []); dwLen := strlen(@szBuf[0]); memcpy(pIrp^.AssociatedIrp.SystemBuffer, @szBuf[0], dwLen); end; Result := STATUS_SUCCESS; pIrp^.IoStatus.Information := dwLen; pIrp^.IoStatus.Status := Result; IoCompleteRequest(pIrp, IO_NO_INCREMENT); IoStartNextPacket(pMyDevice, FALSE); end; function IrpFile(pMyDevice : PDEVICE_OBJECT; pIrp : PIRP) : NTSTATUS; stdcall; var pStack : PIO_STACK_LOCATION; begin pStack := IoGetCurrentIrpStackLocation(pIrp); case pStack^.MajorFunction of IRP_MJ_CREATE: DbgPrint('IRP_MJ_CREATE', []); IRP_MJ_READ: begin DbgPrint('IrpFile, IRP_MJ_READ', []); IoMarkIrpPending(pIrp); IoStartPacket(pMyDevice, pIrp, nil, nil); Result := STATUS_PENDING; exit; end; IRP_MJ_WRITE: begin DbgPrint('IrpFile, IRP_MJ_WRITE', []); IoMarkIrpPending(pIrp); IoStartPacket(pMyDevice, pIrp, nil, nil); Result := STATUS_PENDING; exit; end; IRP_MJ_CLOSE: DbgPrint('IRP_MJ_CLOSE', []); end; Result := STATUS_SUCCESS; pIrp^.IoStatus.Status := Result; pIrp^.IoStatus.Information := 0; IoCompleteRequest(pIrp, IO_NO_INCREMENT); end; function IrpPnp(pMyDevice : PDEVICE_OBJECT; pIrp : PIRP) : NTSTATUS; stdcall; var pStack : PIO_STACK_LOCATION; suSymName : UNICODE_STRING; begin pStack := IoGetCurrentIrpStackLocation(pIrp); if pStack^.MinorFunction = IRP_MN_REMOVE_DEVICE then begin RtlInitUnicodeString(@suSymName, SYM_NAME); IoDetachDevice(pNextDevice); IoDeleteDevice(pMyDevice); IoDeleteSymbolicLink(@suSymName); IoCompleteRequest(pIrp, IO_NO_INCREMENT); Result := STATUS_SUCCESS; end else begin IoSkipCurrentIrpStackLocation(pIrp); Result := IoCallDriver(pNextDevice, pIrp); end; end; function AddDevice(pMyDriver : PDRIVER_OBJECT; pPhyDevice : PDEVICE_OBJECT) : NTSTATUS; stdcall; var suDevName : UNICODE_STRING; suSymName : UNICODE_STRING; pMyDevice : PDEVICE_OBJECT; begin RtlInitUnicodeString(@suDevName, DEV_NAME); RtlInitUnicodeString(@suSymName, SYM_NAME); IoCreateDevice(pMyDriver, 0, @suDevName, FILE_DEVICE_UNKNOWN, 0, FALSE, pMyDevice); pNextDevice := IoAttachDeviceToDeviceStack(pMyDevice, pPhyDevice); pMyDevice^.Flags := pMyDevice^.Flags or DO_BUFFERED_IO; pMyDevice^.Flags := pMyDevice^.Flags and not DO_DEVICE_INITIALIZING; Result := IoCreateSymbolicLink(@suSymName, @suDevName); end; function _DriverEntry(pMyDriver : PDRIVER_OBJECT; pMyRegistry : PUNICODE_STRING) : NTSTATUS; stdcall; begin 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^.DriverStartIo := @StartIo; pMyDriver^.DriverExtension^.AddDevice := @AddDevice; pMyDriver^.DriverUnload := @Unload; Result := STATUS_SUCCESS; end; end.
app.pas
program main; {$APPTYPE CONSOLE} uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs; var hFile : DWORD; dwRet : DWORD; dwLen : DWORD; szBuffer : array[0..255] of char; begin hFile := CreateFile('\\.\MyDriver', GENERIC_READ or GENERIC_WRITE, FILE_SHARE_READ, nil, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); StrCopy(szBuffer, 'I am error'); dwLen := strlen(szBuffer); WriteLn(Output, Format('WR: %s', [szBuffer])); WriteLn(Output, Format('Length: %d', [dwLen])); WriteFile(hFile, szBuffer, dwLen, dwRet, nil); ReadFile(hFile, szBuffer, dwLen, dwRet, nil); WriteLn(Output, Format('RD: %s', [szBuffer])); WriteLn(Output, Format('Length: %d', [dwRet])); CloseHandle(hFile); end.
完成