575 lines
15 KiB
C
575 lines
15 KiB
C
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/*++
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Copyright (C) 1998-99 Microsoft Corporation
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Module Name:
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wmi.c
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Abstract:
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--*/
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#if defined (IDEPORT_WMI_SUPPORT)
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#include <initguid.h>
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#include "ideport.h"
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#include <wmistr.h>
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//
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// Instantiate the GUIDs define in ntddscsi.h in this module.
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//
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#include <devguid.h>
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text(PAGE, IdePortWmiRegister)
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#pragma alloc_text(PAGE, IdePortWmiDeregister)
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#pragma alloc_text(PAGE, IdePortWmiSystemControl)
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#pragma alloc_text(PAGE, DeviceQueryWmiDataBlock)
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#pragma alloc_text(PAGE, DeviceSetWmiDataBlock)
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#pragma alloc_text(PAGE, DeviceSetWmiDataItem)
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#pragma alloc_text(PAGE, DeviceQueryWmiRegInfo)
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#endif
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typedef enum {
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WmiScsiAddress = 0
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} WMI_DATA_BLOCK_TYPE;
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#define NUMBER_OF_WMI_GUID 1
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WMIGUIDREGINFO IdePortWmiGuidList[NUMBER_OF_WMI_GUID];
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VOID
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IdePortWmiInit (VOID)
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{
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PAGED_CODE();
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IdePortWmiGuidList[WmiScsiAddress].Guid = &WmiScsiAddressGuid;
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IdePortWmiGuidList[WmiScsiAddress].InstanceCount = 1;
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IdePortWmiGuidList[WmiScsiAddress].Flags = 0;
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return;
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}
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NTSTATUS
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IdePortWmiRegister(
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PDEVICE_EXTENSION_HEADER DoCommonExtension
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)
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{
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NTSTATUS status;
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PAGED_CODE();
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ASSERT(DoCommonExtension->AttacheePdo == NULL);
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DoCommonExtension->WmiLibInfo.GuidCount = NUMBER_OF_WMI_GUID;
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DoCommonExtension->WmiLibInfo.GuidList = IdePortWmiGuidList;
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DoCommonExtension->WmiLibInfo.QueryWmiDataBlock = DeviceQueryWmiDataBlock;
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DoCommonExtension->WmiLibInfo.QueryWmiRegInfo = DeviceQueryWmiRegInfo;
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DoCommonExtension->WmiLibInfo.SetWmiDataBlock = DeviceSetWmiDataBlock;
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DoCommonExtension->WmiLibInfo.SetWmiDataItem = DeviceSetWmiDataItem;
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DoCommonExtension->WmiLibInfo.ExecuteWmiMethod = NULL;
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DoCommonExtension->WmiLibInfo.WmiFunctionControl = NULL;
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status = IoWMIRegistrationControl(
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DoCommonExtension->DeviceObject,
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WMIREG_ACTION_REGISTER
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);
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if (!NT_SUCCESS(status)) {
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DebugPrint((
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DBG_ALWAYS,
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"IdePortWmiRegister: IoWMIRegistrationControl(%x, WMI_ACTION_REGISTER) failed\n",
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DoCommonExtension->DeviceObject
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));
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}
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return status;
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}
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NTSTATUS
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IdePortWmiDeregister(
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PDEVICE_EXTENSION_HEADER DoCommonExtension
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)
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{
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NTSTATUS status;
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PAGED_CODE();
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status = IoWMIRegistrationControl(
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DoCommonExtension->DeviceObject,
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WMIREG_ACTION_DEREGISTER
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);
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if (!NT_SUCCESS(status)) {
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DebugPrint((
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DBG_ALWAYS,
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"IdePortWmiDeregister: IoWMIRegistrationControl(%x, WMIREG_ACTION_DEREGISTER) failed\n",
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DoCommonExtension->DeviceObject
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));
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}
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return status;
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}
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NTSTATUS
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IdePortWmiSystemControl(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp
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)
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/*++
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Routine Description
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We have just received a System Control IRP.
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Assume that this is a WMI IRP and call into the WMI system library and let
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it handle this IRP for us.
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--*/
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{
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PPDO_EXTENSION pdoExtension;
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SYSCTL_IRP_DISPOSITION disposition;
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NTSTATUS status;
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PAGED_CODE();
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pdoExtension = RefPdoWithTag (DeviceObject, FALSE, (PVOID) ~(ULONG_PTR)Irp);
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if (pdoExtension) {
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status = WmiSystemControl( &pdoExtension->WmiLibInfo,
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DeviceObject,
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Irp,
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&disposition);
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switch(disposition)
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{
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case IrpProcessed:
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{
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//
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// This irp has been processed and may be completed
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// or pending.
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break;
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}
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case IrpNotCompleted:
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{
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//
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// This irp has not been completed, but has been fully
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// processed. We will complete it now
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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break;
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}
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case IrpForward:
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case IrpNotWmi:
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{
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//Fail the irp
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Irp->IoStatus.Status = status = STATUS_NOT_SUPPORTED;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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break;
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}
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default:
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{
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//
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// We really should never get here, but if we do just fail the irp
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ASSERT(FALSE);
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Irp->IoStatus.Status = status = STATUS_NOT_SUPPORTED;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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break;
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}
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}
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UnrefPdoWithTag (
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pdoExtension,
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(PVOID) ~(ULONG_PTR)Irp
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);
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} else {
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ASSERT(!"got WMI irp after the device is removed!\n");
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Irp->IoStatus.Status = status = STATUS_UNSUCCESSFUL;
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IoCompleteRequest( Irp, IO_NO_INCREMENT );
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}
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return status;
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}
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NTSTATUS
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DeviceQueryWmiDataBlock(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp,
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IN ULONG GuidIndex,
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IN ULONG InstanceIndex,
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IN ULONG InstanceCount,
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IN OUT PULONG InstanceLengthArray,
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IN ULONG OutBufferSize,
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OUT PUCHAR Buffer
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)
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/*++
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Routine Description:
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This routine is a callback into the driver to query for the contents of
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a data block. When the driver has finished filling the data block it
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must call ClassWmiCompleteRequest to complete the irp. The driver can
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return STATUS_PENDING if the irp cannot be completed immediately.
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Arguments:
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DeviceObject is the device whose data block is being queried
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Irp is the Irp that makes this request
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GuidIndex is the index into the list of guids provided when the
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device registered
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InstanceIndex is the index that denotes which instance of the data block
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is being queried.
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InstanceCount is the number of instnaces expected to be returned for
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the data block.
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InstanceLengthArray is a pointer to an array of ULONG that returns the
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lengths of each instance of the data block. If this is NULL then
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there was not enough space in the output buffer to fufill the request
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so the irp should be completed with the buffer needed.
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BufferAvail on has the maximum size available to write the data
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block.
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Buffer on return is filled with the returned data block
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Return Value:
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status
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--*/
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{
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PPDO_EXTENSION pdoExtension;
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NTSTATUS status;
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ULONG numBytesReturned = sizeof(WMI_SCSI_ADDRESS);
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PAGED_CODE();
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ASSERT((InstanceIndex == 0) && (InstanceCount == 1));
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pdoExtension = RefPdoWithTag (DeviceObject, FALSE, Irp);
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if (!pdoExtension) {
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ASSERT(!"got WMI irp after the device is removed!\n");
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Irp->IoStatus.Status = status = STATUS_UNSUCCESSFUL;
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IoCompleteRequest( Irp, IO_NO_INCREMENT );
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return status;
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}
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switch (GuidIndex) {
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case WmiScsiAddress: {
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PWMI_SCSI_ADDRESS scsiAddress;
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if (OutBufferSize < sizeof(WMI_SCSI_ADDRESS)) {
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status = STATUS_BUFFER_TOO_SMALL;
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} else {
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scsiAddress = (PWMI_SCSI_ADDRESS) Buffer;
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scsiAddress->Bus = pdoExtension->PathId;
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scsiAddress->Target = pdoExtension->TargetId;
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scsiAddress->Lun = pdoExtension->Lun;
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*InstanceLengthArray = sizeof(WMI_SCSI_ADDRESS);
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status = STATUS_SUCCESS;
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}
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break;
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}
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default:
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status = STATUS_WMI_GUID_NOT_FOUND;
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break;
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}
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status = WmiCompleteRequest( DeviceObject,
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Irp,
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status,
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numBytesReturned,
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IO_NO_INCREMENT
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);
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UnrefPdoWithTag (
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pdoExtension,
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Irp
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);
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return status;
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}
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NTSTATUS
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DeviceQueryWmiRegInfo(
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IN PDEVICE_OBJECT DeviceObject,
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OUT PULONG RegFlags,
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OUT PUNICODE_STRING InstanceName,
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OUT PUNICODE_STRING *RegistryPath,
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OUT PUNICODE_STRING MofResourceName,
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OUT PDEVICE_OBJECT *Pdo
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)
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/*++
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Routine Description:
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This routine is a callback into the driver to retrieve the list of
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guids or data blocks that the driver wants to register with WMI. This
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routine may not pend or block. Driver should NOT call
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ClassWmiCompleteRequest.
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Arguments:
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DeviceObject is the device whose data block is being queried
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*RegFlags returns with a set of flags that describe the guids being
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registered for this device. If the device wants enable and disable
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collection callbacks before receiving queries for the registered
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guids then it should return the WMIREG_FLAG_EXPENSIVE flag. Also the
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returned flags may specify WMIREG_FLAG_INSTANCE_PDO in which case
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the instance name is determined from the PDO associated with the
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device object. Note that the PDO must have an associated devnode. If
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WMIREG_FLAG_INSTANCE_PDO is not set then Name must return a unique
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name for the device.
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InstanceName returns with the instance name for the guids if
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WMIREG_FLAG_INSTANCE_PDO is not set in the returned *RegFlags. The
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caller will call ExFreePool with the buffer returned.
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*RegistryPath returns with the registry path of the driver
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*MofResourceName returns with the name of the MOF resource attached to
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the binary file. If the driver does not have a mof resource attached
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then this can be returned as NULL.
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*Pdo returns with the device object for the PDO associated with this
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device if the WMIREG_FLAG_INSTANCE_PDO flag is retured in
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*RegFlags.
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Return Value:
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status
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--*/
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{
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PIDEDRIVER_EXTENSION ideDriverExtension;
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PPDO_EXTENSION pdoExtension;
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NTSTATUS status;
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PAGED_CODE();
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pdoExtension = RefPdoWithTag (DeviceObject, FALSE, DeviceQueryWmiRegInfo);
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if (!pdoExtension) {
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ASSERT(!"got WMI callback after the device is removed!\n");
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status = STATUS_UNSUCCESSFUL;
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} else {
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ideDriverExtension = IoGetDriverObjectExtension(
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pdoExtension->DriverObject,
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DRIVER_OBJECT_EXTENSION_ID
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);
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if (!ideDriverExtension) {
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status = STATUS_UNSUCCESSFUL;
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} else {
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*RegFlags = WMIREG_FLAG_INSTANCE_PDO;
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*RegistryPath = &ideDriverExtension->RegistryPath;
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*Pdo = pdoExtension->DeviceObject;
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status = STATUS_SUCCESS;
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}
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UnrefPdoWithTag (
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pdoExtension,
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DeviceQueryWmiRegInfo
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);
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}
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return status;
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}
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NTSTATUS
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DeviceSetWmiDataBlock(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp,
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IN ULONG GuidIndex,
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IN ULONG InstanceIndex,
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IN ULONG BufferSize,
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IN PUCHAR Buffer
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)
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/*++
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Routine Description:
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This routine is a callback into the driver to set the contents of
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|
|
a data block. When the driver has finished filling the data block it
|
||
|
|
must call ClassWmiCompleteRequest to complete the irp. The driver can
|
||
|
|
return STATUS_PENDING if the irp cannot be completed immediately.
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
DeviceObject is the device whose data block is being queried
|
||
|
|
|
||
|
|
Irp is the Irp that makes this request
|
||
|
|
|
||
|
|
GuidIndex is the index into the list of guids provided when the
|
||
|
|
device registered
|
||
|
|
|
||
|
|
InstanceIndex is the index that denotes which instance of the data block
|
||
|
|
is being set.
|
||
|
|
|
||
|
|
BufferSize has the size of the data block passed
|
||
|
|
|
||
|
|
Buffer has the new values for the data block
|
||
|
|
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
status
|
||
|
|
|
||
|
|
--*/
|
||
|
|
{
|
||
|
|
PPDO_EXTENSION pdoExtension;
|
||
|
|
NTSTATUS status;
|
||
|
|
|
||
|
|
PAGED_CODE();
|
||
|
|
|
||
|
|
pdoExtension = RefPdoWithTag (DeviceObject, FALSE, Irp);
|
||
|
|
|
||
|
|
if (!pdoExtension) {
|
||
|
|
|
||
|
|
ASSERT(!"got WMI callback after the device is removed!\n");
|
||
|
|
status = STATUS_UNSUCCESSFUL;
|
||
|
|
|
||
|
|
} else {
|
||
|
|
|
||
|
|
switch (GuidIndex) {
|
||
|
|
case WmiScsiAddress: {
|
||
|
|
status = STATUS_WMI_READ_ONLY;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
default:
|
||
|
|
status = STATUS_WMI_GUID_NOT_FOUND;
|
||
|
|
}
|
||
|
|
|
||
|
|
status = WmiCompleteRequest( DeviceObject,
|
||
|
|
Irp,
|
||
|
|
status,
|
||
|
|
0,
|
||
|
|
IO_NO_INCREMENT
|
||
|
|
);
|
||
|
|
|
||
|
|
UnrefPdoWithTag (
|
||
|
|
pdoExtension,
|
||
|
|
Irp
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
return status;
|
||
|
|
}
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
DeviceSetWmiDataItem(
|
||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
||
|
|
IN PIRP Irp,
|
||
|
|
IN ULONG GuidIndex,
|
||
|
|
IN ULONG InstanceIndex,
|
||
|
|
IN ULONG DataItemId,
|
||
|
|
IN ULONG BufferSize,
|
||
|
|
IN PUCHAR Buffer
|
||
|
|
)
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
This routine is a callback into the driver to set for the contents of
|
||
|
|
a data block. When the driver has finished filling the data block it
|
||
|
|
must call ClassWmiCompleteRequest to complete the irp. The driver can
|
||
|
|
return STATUS_PENDING if the irp cannot be completed immediately.
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
DeviceObject is the device whose data block is being queried
|
||
|
|
|
||
|
|
Irp is the Irp that makes this request
|
||
|
|
|
||
|
|
GuidIndex is the index into the list of guids provided when the
|
||
|
|
device registered
|
||
|
|
|
||
|
|
InstanceIndex is the index that denotes which instance of the data block
|
||
|
|
is being set.
|
||
|
|
|
||
|
|
DataItemId has the id of the data item being set
|
||
|
|
|
||
|
|
BufferSize has the size of the data item passed
|
||
|
|
|
||
|
|
Buffer has the new values for the data item
|
||
|
|
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
status
|
||
|
|
|
||
|
|
--*/
|
||
|
|
{
|
||
|
|
PPDO_EXTENSION pdoExtension;
|
||
|
|
NTSTATUS status;
|
||
|
|
|
||
|
|
PAGED_CODE();
|
||
|
|
|
||
|
|
pdoExtension = RefPdoWithTag (DeviceObject, FALSE, Irp);
|
||
|
|
|
||
|
|
if (!pdoExtension) {
|
||
|
|
|
||
|
|
ASSERT(!"got WMI callback after the device is removed!\n");
|
||
|
|
status = STATUS_UNSUCCESSFUL;
|
||
|
|
|
||
|
|
} else {
|
||
|
|
|
||
|
|
switch(GuidIndex) {
|
||
|
|
|
||
|
|
case WmiScsiAddress: {
|
||
|
|
status = STATUS_WMI_READ_ONLY;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
default:
|
||
|
|
status = STATUS_WMI_GUID_NOT_FOUND;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
status = WmiCompleteRequest( DeviceObject,
|
||
|
|
Irp,
|
||
|
|
status,
|
||
|
|
0,
|
||
|
|
IO_NO_INCREMENT
|
||
|
|
);
|
||
|
|
|
||
|
|
UnrefPdoWithTag (
|
||
|
|
pdoExtension,
|
||
|
|
Irp
|
||
|
|
);
|
||
|
|
}
|
||
|
|
return status;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif // IDEPORT_WMI_SUPPORT
|
||
|
|
|