574 lines
15 KiB
C
574 lines
15 KiB
C
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#include <internal.h>
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#define INITGUID
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#include <guiddef.h>
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#include <wdmguid.h>
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#pragma alloc_text(PAGE,IrEnumPdoPnp)
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#pragma alloc_text(PAGE,IrEnumPdoPower)
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#pragma alloc_text(PAGE,IrEnumPdoWmi)
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#define CHILD_DEVICE_TEXT L"IR Communication Device"
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#define HARDWARE_ID_PREFIX L"IRENUM\\"
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//#define HARDWARE_ID L"IRENUM\\PNP0501"
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NTSTATUS
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IrEnumPdoPnp (
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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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Handle requests from the PlugPlay system for the devices on the BUS
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--*/
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{
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PIO_STACK_LOCATION IrpSp = IoGetCurrentIrpStackLocation(Irp);
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PPDO_DEVICE_EXTENSION PdoDeviceExtension=DeviceObject->DeviceExtension;
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PDEVICE_CAPABILITIES deviceCapabilities;
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ULONG information;
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PWCHAR buffer=NULL;
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ULONG length, i, j;
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NTSTATUS status;
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PAGED_CODE ();
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status = Irp->IoStatus.Status;
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switch (IrpSp->MinorFunction) {
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case IRP_MN_QUERY_CAPABILITIES:
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D_PNP(DbgPrint("IRENUM: PDO: IRP_MN_QUERY_CAPABILITIES\n");)
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//
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// Get the packet.
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//
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deviceCapabilities=IrpSp->Parameters.DeviceCapabilities.Capabilities;
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//
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// Set the capabilities.
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//
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deviceCapabilities->Version = 1;
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deviceCapabilities->Size = sizeof (DEVICE_CAPABILITIES);
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// We cannot wake the system.
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deviceCapabilities->SystemWake = PowerSystemUnspecified;
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deviceCapabilities->DeviceWake = PowerDeviceUnspecified;
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// We have no latencies
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deviceCapabilities->D1Latency = 0;
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deviceCapabilities->D2Latency = 0;
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deviceCapabilities->D3Latency = 0;
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// No locking or ejection
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deviceCapabilities->LockSupported = FALSE;
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deviceCapabilities->EjectSupported = FALSE;
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// Device can be physically removed.
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// Technically there is no physical device to remove, but this bus
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// driver can yank the PDO from the PlugPlay system, when ever it
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// receives an IOCTL_SERENUM_REMOVE_PORT device control command.
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// deviceCapabilities->Removable = TRUE;
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deviceCapabilities->SurpriseRemovalOK=TRUE;
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if (PdoDeviceExtension->DeviceDescription->Printer) {
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//
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// there is no server for printers
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//
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deviceCapabilities->RawDeviceOK=TRUE;
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}
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// not Docking device
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deviceCapabilities->DockDevice = FALSE;
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// deviceCapabilities->UniqueID = TRUE;
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status = STATUS_SUCCESS;
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break;
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case IRP_MN_QUERY_DEVICE_TEXT:
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if (IrpSp->Parameters.QueryDeviceText.DeviceTextType == DeviceTextDescription) {
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ULONG BufferLength=0;
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if (PdoDeviceExtension->DeviceDescription->Name != NULL) {
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BufferLength += wcslen(PdoDeviceExtension->DeviceDescription->Name)*sizeof(WCHAR);
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}
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if (BufferLength > 0) {
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//
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// we have a name or manufacturer
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//
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buffer=ALLOCATE_PAGED_POOL((BufferLength+sizeof(UNICODE_NULL)+sizeof(L" ")));
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if (buffer != NULL) {
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buffer[0]=L'\0';
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if (PdoDeviceExtension->DeviceDescription->Name != NULL) {
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wcscat(buffer,PdoDeviceExtension->DeviceDescription->Name);
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}
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status=STATUS_SUCCESS;
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} else {
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status=STATUS_INSUFFICIENT_RESOURCES;
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}
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} else {
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//
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// no pnp info, just make something up
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//
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buffer=ALLOCATE_PAGED_POOL(sizeof(CHILD_DEVICE_TEXT));
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if (buffer != NULL) {
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RtlCopyMemory(buffer,CHILD_DEVICE_TEXT,sizeof(CHILD_DEVICE_TEXT));
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status=STATUS_SUCCESS;
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} else {
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status=STATUS_INSUFFICIENT_RESOURCES;
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}
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}
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Irp->IoStatus.Status=status;
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Irp->IoStatus.Information = (ULONG_PTR) buffer;
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}
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break;
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case IRP_MN_QUERY_ID:
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D_PNP(DbgPrint("IRENUM: PDO: IRP_MN_QUERY_ID\n");)
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// Query the IDs of the device
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switch (IrpSp->Parameters.QueryId.IdType) {
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case BusQueryInstanceID: {
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//
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// Build an instance ID. This is what PnP uses to tell if it has
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// seen this thing before or not.
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//
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ULONG Length;
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Length=wcslen(PdoDeviceExtension->DeviceDescription->DeviceName)*sizeof(WCHAR);
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buffer = ALLOCATE_PAGED_POOL( Length + sizeof(WCHAR));
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if (buffer) {
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RtlZeroMemory(buffer, Length + sizeof(WCHAR));
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RtlCopyMemory (buffer, PdoDeviceExtension->DeviceDescription->DeviceName, Length);
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status=STATUS_SUCCESS;
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} else {
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status=STATUS_NO_MEMORY;
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}
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Irp->IoStatus.Status=status;
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Irp->IoStatus.Information = (ULONG_PTR) buffer;
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break;
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}
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case BusQueryDeviceID:
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case BusQueryHardwareIDs: {
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//
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// return a multi WCHAR (null terminated) string (null terminated)
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// array for use in matching hardare ids in inf files;
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//
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//
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// the device reported and hardware id
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//
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ULONG Length;
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//
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// figure out the length, it is multi sz so we need a double null,
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//
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Length=wcslen(PdoDeviceExtension->DeviceDescription->HardwareId)*sizeof(WCHAR) + (sizeof(UNICODE_NULL)*2) + sizeof(HARDWARE_ID_PREFIX);
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buffer = ALLOCATE_PAGED_POOL( Length );
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if (buffer != NULL) {
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//
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// build the hardware is by concatenating irenuum\ with the value retuned by the device
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//
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RtlZeroMemory(buffer,Length);
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if ((IrpSp->Parameters.QueryId.IdType == BusQueryDeviceID) || !PdoDeviceExtension->DeviceDescription->Printer) {
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//
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// prepend IRENUM\ for the device ID always and for the HARDWARE id when it isn't a printer
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//
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wcscpy(buffer,HARDWARE_ID_PREFIX);
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}
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wcscat(buffer,PdoDeviceExtension->DeviceDescription->HardwareId);
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status=STATUS_SUCCESS;
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} else {
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status=STATUS_NO_MEMORY;
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}
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Irp->IoStatus.Information = (ULONG_PTR) buffer;
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break;
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}
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case BusQueryCompatibleIDs: {
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//
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// The generic ids for installation of this pdo.
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//
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ULONG Length=0;
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LONG i;
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for (i=0; i< PdoDeviceExtension->DeviceDescription->CompatIdCount; i++) {
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Length += (wcslen(PdoDeviceExtension->DeviceDescription->CompatId[i])+1)*sizeof(WCHAR)+sizeof(IRENUM_PREFIX);
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}
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Length += sizeof(WCHAR)*2;
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buffer = ALLOCATE_PAGED_POOL(Length);
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if (buffer != NULL) {
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LONG Index=0;
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RtlZeroMemory (buffer, Length);
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for (i=0; i< PdoDeviceExtension->DeviceDescription->CompatIdCount; i++) {
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if (!PdoDeviceExtension->DeviceDescription->Printer) {
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//
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// for printers we don't prepend our enumerator name
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//
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wcscpy(&buffer[Index],IRENUM_PREFIX);
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}
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wcscat(
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&buffer[Index],
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PdoDeviceExtension->DeviceDescription->CompatId[i]
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);
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//
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// figure out where the next string should go
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//
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Index += wcslen(&buffer[Index]) +1 ;
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}
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status = STATUS_SUCCESS;
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} else {
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status=STATUS_INSUFFICIENT_RESOURCES;
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}
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Irp->IoStatus.Information = (ULONG_PTR) buffer;
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break;
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}
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break;
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default:
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//
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// not supported
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//
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break;
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}
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break;
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case IRP_MN_START_DEVICE: {
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D_PNP(DbgPrint("IRENUM: PDO: IRP_MN_START_DEVICE\n");)
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if (PdoDeviceExtension->DeviceDescription->Printer) {
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//
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// Need to set a value in the devices parameters key for printers
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//
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HANDLE Handle;
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status=IoOpenDeviceRegistryKey(
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DeviceObject,
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PLUGPLAY_REGKEY_DEVICE,
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STANDARD_RIGHTS_READ,
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&Handle
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);
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if (NT_SUCCESS(status)) {
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UNICODE_STRING KeyName;
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RtlInitUnicodeString(&KeyName,L"PortName");
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ZwSetValueKey(
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Handle,
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&KeyName,
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0,
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REG_SZ,
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L"IR",
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sizeof(L"IR")
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);
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ZwClose(Handle);
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}
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}
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status = STATUS_SUCCESS;
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break;
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}
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case IRP_MN_QUERY_STOP_DEVICE:
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D_PNP(DbgPrint("IRENUM: PDO: IRP_MN_QUERY_STOP_DEVICE\n");)
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// No reason here why we can't stop the device.
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// If there were a reason we should speak now for answering success
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// here may result in a stop device irp.
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status = STATUS_SUCCESS;
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break;
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case IRP_MN_CANCEL_STOP_DEVICE:
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D_PNP(DbgPrint("IRENUM: PDO: IRP_MN_CANCEL_STOP_DEVICE\n");)
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//
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// The stop was canceled. Whatever state we set, or resources we put
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// on hold in anticipation of the forcoming STOP device IRP should be
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// put back to normal. Someone, in the long list of concerned parties,
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// has failed the stop device query.
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//
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status = STATUS_SUCCESS;
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break;
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case IRP_MN_STOP_DEVICE:
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D_PNP(DbgPrint("IRENUM: PDO: IRP_MN_STOP_DEVICE\n");)
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// Here we shut down the device. The opposite of start.
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status = STATUS_SUCCESS;
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break;
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case IRP_MN_SURPRISE_REMOVAL:
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D_PNP(DbgPrint("IRENUM: PDO: IRP_MN_SURPRISE_REMOVAL\n");)
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status = STATUS_SUCCESS;
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break;
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case IRP_MN_REMOVE_DEVICE: {
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PFDO_DEVICE_EXTENSION FdoDeviceExtension=PdoDeviceExtension->ParentFdo->DeviceExtension;
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D_PNP(DbgPrint("IRENUM: PDO: IRP_MN_REMOVE_DEVICE: %08lx\n",DeviceObject);)
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RemoveDevice(FdoDeviceExtension->EnumHandle,PdoDeviceExtension->DeviceDescription);
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status=STATUS_SUCCESS;
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}
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break;
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case IRP_MN_QUERY_REMOVE_DEVICE:
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D_PNP(DbgPrint("IRENUM: PDO: IRP_MN_QUERY_REMOVE_DEVICE\n");)
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//
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// Just like Query Stop only now the impending doom is the remove irp
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//
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status = STATUS_SUCCESS;
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break;
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case IRP_MN_CANCEL_REMOVE_DEVICE:
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D_PNP(DbgPrint("IRENUM: PDO: IRP_MN_CANCEL_REMOVE_DEVICE\n");)
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//
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// Clean up a remove that did not go through, just like cancel STOP.
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//
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status = STATUS_SUCCESS;
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break;
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case IRP_MN_READ_CONFIG:
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D_PNP(DbgPrint("IRENUM: PDO: IRP_MN_READ_CONFIG: Space=%d\n",IrpSp->Parameters.ReadWriteConfig.WhichSpace);)
|
||
|
|
|
||
|
|
switch ( IrpSp->Parameters.ReadWriteConfig.WhichSpace ) {
|
||
|
|
|
||
|
|
case IRENUM_CONFIG_SPACE_INFO:
|
||
|
|
|
||
|
|
if ((IrpSp->Parameters.ReadWriteConfig.Length >= sizeof(IRCOMM_BUS_INFO))) {
|
||
|
|
|
||
|
|
IRCOMM_BUS_INFO BusInfo;
|
||
|
|
|
||
|
|
BusInfo.DeviceAddress= PdoDeviceExtension->DeviceDescription->DeviceId;
|
||
|
|
BusInfo.OutGoingConnection=!PdoDeviceExtension->DeviceDescription->Static;
|
||
|
|
|
||
|
|
RtlCopyMemory(
|
||
|
|
IrpSp->Parameters.ReadWriteConfig.Buffer,
|
||
|
|
&BusInfo,
|
||
|
|
sizeof(BusInfo)
|
||
|
|
);
|
||
|
|
|
||
|
|
status = STATUS_SUCCESS;
|
||
|
|
Irp->IoStatus.Information=sizeof(BusInfo);
|
||
|
|
break;
|
||
|
|
|
||
|
|
}
|
||
|
|
status=STATUS_BUFFER_TOO_SMALL;
|
||
|
|
break;
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
default:
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case IRP_MN_QUERY_BUS_INFORMATION: {
|
||
|
|
|
||
|
|
PPNP_BUS_INFORMATION BusInfo;
|
||
|
|
|
||
|
|
BusInfo = ALLOCATE_PAGED_POOL( sizeof(*BusInfo));
|
||
|
|
|
||
|
|
if (BusInfo != NULL) {
|
||
|
|
|
||
|
|
BusInfo->BusTypeGuid = GUID_BUS_TYPE_IRDA;
|
||
|
|
BusInfo->LegacyBusType=PNPBus;
|
||
|
|
BusInfo->BusNumber=0;
|
||
|
|
|
||
|
|
Irp->IoStatus.Information=(ULONG_PTR)BusInfo;
|
||
|
|
|
||
|
|
status = STATUS_SUCCESS;
|
||
|
|
|
||
|
|
} else {
|
||
|
|
|
||
|
|
status=STATUS_INSUFFICIENT_RESOURCES;
|
||
|
|
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
case IRP_MN_QUERY_DEVICE_RELATIONS: {
|
||
|
|
|
||
|
|
PDEVICE_RELATIONS CurrentRelations;
|
||
|
|
|
||
|
|
switch (IrpSp->Parameters.QueryDeviceRelations.Type) {
|
||
|
|
|
||
|
|
case TargetDeviceRelation:
|
||
|
|
|
||
|
|
CurrentRelations=ALLOCATE_PAGED_POOL(sizeof(DEVICE_RELATIONS));
|
||
|
|
|
||
|
|
if (CurrentRelations != NULL) {
|
||
|
|
|
||
|
|
ObReferenceObject(DeviceObject);
|
||
|
|
CurrentRelations->Objects[0]=DeviceObject;
|
||
|
|
CurrentRelations->Count=1;
|
||
|
|
|
||
|
|
Irp->IoStatus.Information=(ULONG_PTR)CurrentRelations;
|
||
|
|
|
||
|
|
status=STATUS_SUCCESS;
|
||
|
|
|
||
|
|
} else {
|
||
|
|
|
||
|
|
status=STATUS_INSUFFICIENT_RESOURCES;
|
||
|
|
}
|
||
|
|
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
|
||
|
|
break;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
default:
|
||
|
|
//
|
||
|
|
// we aren't handling this irp
|
||
|
|
// just complete it
|
||
|
|
//
|
||
|
|
break;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// the irp has been handled in some way or the other
|
||
|
|
// complete it now
|
||
|
|
//
|
||
|
|
Irp->IoStatus.Status = status;
|
||
|
|
IoCompleteRequest (Irp, IO_NO_INCREMENT);
|
||
|
|
|
||
|
|
return status;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
IrEnumPdoPower(
|
||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
||
|
|
IN PIRP Irp
|
||
|
|
)
|
||
|
|
|
||
|
|
{
|
||
|
|
|
||
|
|
PIO_STACK_LOCATION irpSp = IoGetCurrentIrpStackLocation(Irp);
|
||
|
|
|
||
|
|
PAGED_CODE();
|
||
|
|
|
||
|
|
D_POWER(DbgPrint("IRENUM: PDO: Power IRP, MN func=%d\n",irpSp->MinorFunction);)
|
||
|
|
|
||
|
|
PoStartNextPowerIrp(Irp);
|
||
|
|
|
||
|
|
Irp->IoStatus.Status = STATUS_SUCCESS;
|
||
|
|
IoCompleteRequest (Irp, IO_NO_INCREMENT);
|
||
|
|
|
||
|
|
return STATUS_SUCCESS;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
IrEnumPdoWmi(
|
||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
||
|
|
IN PIRP Irp
|
||
|
|
)
|
||
|
|
|
||
|
|
{
|
||
|
|
NTSTATUS Status=Irp->IoStatus.Status;
|
||
|
|
|
||
|
|
D_WMI(DbgPrint("IRENUM: PDO: Wmi\n");)
|
||
|
|
|
||
|
|
IoCompleteRequest (Irp, IO_NO_INCREMENT);
|
||
|
|
|
||
|
|
return Status;
|
||
|
|
}
|