// Release shared buffer
KeReleaseSpinlock(&BufferLock,irql);
DebugPrint('DeviceIoControl: %d bytes written', (int)BytesTxd);
// Complete IRP
return CompleteIrp(Irp,status.BytesTxd);
}
///////////////////////////////////////////////////////////////////////
//Wdm1SystemControl:
//
//Description:
//Handle IRP_MJ_SYSTEM_C0NTROL requests
//
//Arguments:
//Pointer to our FDO
//Pointer to the IRP
//Various minor parameters
//IrpStack->Parameters.WMI.xxx has WMI parameters
//
//Return Value:
//This function returns STATUS_XXX
NTSTATUS WdmlSystemControl(IN PDEVICE_OBJECT fdo, IN PIRP Irp) {
DebugPrintMsg('SystemControl');
// Just pass to lower driver
IoSkipCurrentIrpStackLocation(Irp);
PWDM1_DEVICE_EXTENSION dx = (PWDM1_DEVICE_EXTENSION)fdo->DeviceExtension;
return IoCallDriver(dx->NextStackDevice, Irp);
}
///////////////////////////////////////////////////////////////////////
//Wdm1Cleanup:
//
//Description:
//Handle IRP_MJ_CLEANUP requests
//Cancel queued IRPs which match given FileObject
//
//Arguments:
//Pointer to our FDO
//Pointer to the IRP
//IrpStack->FileObject has handle to file
//
//Return Value:
//This function returns STATUS_XXX
//Not needed for Wdm1
///////////////////////////////////////////////////////////////////////
//CompleteIrp:Sets IoStatus and completes the IRP
NTSTATUS CompleteIrp(PIRP Irp, NTSTATUS status, ULONG info) {
Irp->IoStatus.Status = status;
Irp->IoStatus.Information = info;
IoCompleteRequest(Irp,IO_NO_INCREMENT);
return status;
}
///////////////////////////////////////////////////////////////////////
Listing 4.11 Wdm1.rc
//Microsoft Developer Studio generated resource script.
//
#include 'resource.h'
#define APSTUDIO_READONLY_SYMBOLS
///////////////////////////////////////////////////////////////////////
//
// Generated from the TEXTINCLUDE 2 resource.
//
#include 'afxres.h'
///////////////////////////////////////////////////////////////////////
#undef APSTUDIO_READONLY_SYMBOLS
///////////////////////////////////////////////////////////////////////
// English (U.S.) resources
#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
#ifdef _WIN32
LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
#pragma code_page(1252)
#endif //_WIN32
#ifndef _MAC
///////////////////////////////////////////////////////////////////////
//
// Version
//
VS_VERSION_INFO VERSIONINFO
FILEVERSION 1,0,5,0
PRODUCTVERSION 1,0,0,0
FILEFLAGSMASK 0x3fL
#ifdef _DEBUG
FILEFLAGS 0x1L
#else
FILEFLAGS 0x0L
#endif
FILEOS 0x4L
