stub.c File Reference

#include "isapnp.h"
#include <debug.h>

Include dependency graph for stub.c:

Go to the source code of this file.

Macros
#define	NDEBUG

Functions
	_Dispatch_type_ (IRP_MJ_CREATE)
	_Dispatch_type_ (IRP_MJ_DEVICE_CONTROL)
	_Dispatch_type_ (IRP_MJ_PNP)
	_Dispatch_type_ (IRP_MJ_POWER)
static	CODE_SEG ("PAGE")
NTSTATUS NTAPI	DriverEntry (_In_ PDRIVER_OBJECT DriverObject, _In_ PUNICODE_STRING RegistryPath)

Macro Definition Documentation

NDEBUG

#define NDEBUG

Definition at line 18 of file stub.c.

Function Documentation

_Dispatch_type_() [1/4]

_Dispatch_type_

(

IRP_MJ_CREATE

)

Definition at line 23 of file stub.c.

{
    UNREFERENCED_PARAMETER(DeviceObject);
 
    PAGED_CODE();
 
    Irp->IoStatus.Status = STATUS_SUCCESS;
    IoCompleteRequest(Irp, IO_NO_INCREMENT);
 
    return STATUS_SUCCESS;
}

_Dispatch_type_() [2/4]

_Dispatch_type_

(

IRP_MJ_DEVICE_CONTROL

)

Definition at line 45 of file stub.c.

{
    PISAPNP_FDO_EXTENSION FdoExt = DeviceObject->DeviceExtension;
 
    PAGED_CODE();
 
    IoSkipCurrentIrpStackLocation(Irp);
    return IoCallDriver(FdoExt->Ldo, Irp);
}

_Dispatch_type_() [3/4]

_Dispatch_type_

(

IRP_MJ_PNP

)

Definition at line 65 of file stub.c.

{
    PISAPNP_FDO_EXTENSION FdoExt = DeviceObject->DeviceExtension;
    PIO_STACK_LOCATION IrpSp = IoGetCurrentIrpStackLocation(Irp);
    NTSTATUS Status;
 
    PAGED_CODE();
 
    DPRINT("%s(%p, %p) Minor - %X\n",
           __FUNCTION__,
           FdoExt,
           Irp,
           IrpSp->MinorFunction);
 
    switch (IrpSp->MinorFunction)
    {
        case IRP_MN_START_DEVICE:
        {
            if (IoForwardIrpSynchronously(FdoExt->Ldo, Irp))
                Status = Irp->IoStatus.Status;
            else
                Status = STATUS_UNSUCCESSFUL;
 
            goto CompleteIrp;
        }
 
        case IRP_MN_QUERY_DEVICE_RELATIONS:
        {
            PDEVICE_RELATIONS DeviceRelations;
 
            if (IrpSp->Parameters.QueryDeviceRelations.Type != BusRelations)
                break;
 
            DeviceRelations = ExAllocatePoolWithTag(PagedPool,
                                                    FIELD_OFFSET(DEVICE_RELATIONS, Objects),
                                                    TAG_ISAPNP);
            if (!DeviceRelations)
            {
                Status = STATUS_NO_MEMORY;
                goto CompleteIrp;
            }
 
            DeviceRelations->Count = 0;
 
            Irp->IoStatus.Information = (ULONG_PTR)DeviceRelations;
            Irp->IoStatus.Status = STATUS_SUCCESS;
            break;
        }
 
        case IRP_MN_REMOVE_DEVICE:
        {
            Irp->IoStatus.Status = STATUS_SUCCESS;
            IoSkipCurrentIrpStackLocation(Irp);
            Status = IoCallDriver(FdoExt->Ldo, Irp);
 
            IoDetachDevice(FdoExt->Ldo);
            IoDeleteDevice(FdoExt->Common.Self);
 
            return Status;
        }
 
        case IRP_MN_QUERY_PNP_DEVICE_STATE:
        {
            Irp->IoStatus.Information |= PNP_DEVICE_NOT_DISABLEABLE;
            Irp->IoStatus.Status = STATUS_SUCCESS;
            break;
        }
 
        case IRP_MN_QUERY_INTERFACE:
        {
            Status = IsaFdoQueryInterface(FdoExt, IrpSp);
            if (Status == STATUS_NOT_SUPPORTED)
            {
                break;
            }
            else if (!NT_SUCCESS(Status))
            {
                goto CompleteIrp;
            }
 
            Irp->IoStatus.Status = Status;
            break;
        }
 
        case IRP_MN_QUERY_REMOVE_DEVICE:
        case IRP_MN_CANCEL_REMOVE_DEVICE:
        case IRP_MN_QUERY_STOP_DEVICE:
        case IRP_MN_CANCEL_STOP_DEVICE:
        case IRP_MN_STOP_DEVICE:
        case IRP_MN_SURPRISE_REMOVAL:
        {
            Irp->IoStatus.Status = STATUS_SUCCESS;
            break;
        }
 
        default:
            break;
    }
 
    IoSkipCurrentIrpStackLocation(Irp);
    return IoCallDriver(FdoExt->Ldo, Irp);
 
CompleteIrp:
    Irp->IoStatus.Status = Status;
    IoCompleteRequest(Irp, IO_NO_INCREMENT);
    return Status;
}

_Dispatch_type_() [4/4]

_Dispatch_type_

(

IRP_MJ_POWER

)

Definition at line 182 of file stub.c.

{
    PISAPNP_FDO_EXTENSION FdoExt = DeviceObject->DeviceExtension;
 
    PoStartNextPowerIrp(Irp);
    IoSkipCurrentIrpStackLocation(Irp);
    return PoCallDriver(FdoExt->Ldo, Irp);
}

CODE_SEG()

static CODE_SEG ( "PAGE"  )

static

Definition at line 199 of file stub.c.

{
    PDEVICE_OBJECT Fdo;
    PISAPNP_FDO_EXTENSION FdoExt;
    NTSTATUS Status;
 
    PAGED_CODE();
 
    DPRINT("%s(%p, %p)\n", __FUNCTION__, DriverObject, PhysicalDeviceObject);
 
    Status = IoCreateDevice(DriverObject,
                            sizeof(ISAPNP_FDO_EXTENSION),
                            NULL,
                            FILE_DEVICE_BUS_EXTENDER,
                            FILE_DEVICE_SECURE_OPEN,
                            FALSE,
                            &Fdo);
    if (!NT_SUCCESS(Status))
    {
        DPRINT1("Failed to create FDO (0x%08lx)\n", Status);
        return Status;
    }
 
    FdoExt = Fdo->DeviceExtension;
 
    RtlZeroMemory(FdoExt, sizeof(ISAPNP_FDO_EXTENSION));
    FdoExt->Common.Self = Fdo;
    FdoExt->Common.Signature = IsaPnpBus;
    FdoExt->DriverObject = DriverObject;
    FdoExt->Pdo = PhysicalDeviceObject;
    FdoExt->Ldo = IoAttachDeviceToDeviceStack(Fdo, PhysicalDeviceObject);
    if (!FdoExt->Ldo)
    {
        IoDeleteDevice(Fdo);
        return STATUS_DEVICE_REMOVED;
    }
 
    Fdo->Flags &= ~DO_DEVICE_INITIALIZING;
 
    return STATUS_SUCCESS;
}

DriverEntry()

NTSTATUS NTAPI DriverEntry	(	_In_ PDRIVER_OBJECT	DriverObject,
		_In_ PUNICODE_STRING	RegistryPath
	)

Definition at line 268 of file stub.c.

{
    DPRINT("%s(%p, %wZ)\n", __FUNCTION__, DriverObject, RegistryPath);
 
    DriverObject->MajorFunction[IRP_MJ_CREATE] = IsaStubCreateClose;
    DriverObject->MajorFunction[IRP_MJ_CLOSE] = IsaStubCreateClose;
    DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = IsaStubForward;
    DriverObject->MajorFunction[IRP_MJ_SYSTEM_CONTROL] = IsaStubForward;
    DriverObject->MajorFunction[IRP_MJ_PNP] = IsaStubPnp;
    DriverObject->MajorFunction[IRP_MJ_POWER] = IsaStubPower;
    DriverObject->DriverExtension->AddDevice = IsaStubAddDevice;
    DriverObject->DriverUnload = IsaStubUnload;
 
    return STATUS_SUCCESS;
}