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Patch by hpoussin/GvG
- Read parameters in the right registry key - Force exclusive opening on device object - Add hack for first stage setup (link main device object to \??\Keyboard) - Use buffered IO - Reference pointer port DOs when they are linked to pointer class DO svn path=/trunk/; revision=18943
This commit is contained in:
Gé van Geldorp
parent
f9d8fe961d
commit
baee1b54eb
1 changed files with 65 additions and 14 deletions
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@ -47,6 +47,20 @@ KbdclassClose(
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return STATUS_SUCCESS;
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}
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static NTSTATUS NTAPI
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KbdclassCleanup(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp)
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{
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DPRINT("IRP_MJ_CLEANUP\n");
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if (!((PCOMMON_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->IsClassDO)
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return ForwardIrpAndForget(DeviceObject, Irp);
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/* FIXME: close all associated Port devices */
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return STATUS_SUCCESS;
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}
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static NTSTATUS NTAPI
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KbdclassRead(
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IN PDEVICE_OBJECT DeviceObject,
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@ -79,7 +93,7 @@ KbdclassDeviceControl(
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NTSTATUS Status;
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DPRINT("IRP_MJ_DEVICE_CONTROL\n");
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if (!((PCOMMON_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->IsClassDO)
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return ForwardIrpAndForget(DeviceObject, Irp);
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@ -148,6 +162,7 @@ ReadRegistryEntries(
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IN PUNICODE_STRING RegistryPath,
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IN PKBDCLASS_DRIVER_EXTENSION DriverExtension)
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{
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UNICODE_STRING ParametersRegistryKey;
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RTL_QUERY_REGISTRY_TABLE Parameters[4];
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NTSTATUS Status;
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@ -155,6 +170,18 @@ ReadRegistryEntries(
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ULONG DefaultKeyboardDataQueueSize = 0x64;
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UNICODE_STRING DefaultKeyboardDeviceBaseName = RTL_CONSTANT_STRING(L"KeyboardClass");
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ParametersRegistryKey.Length = 0;
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ParametersRegistryKey.MaximumLength = RegistryPath->Length + sizeof(L"\\Parameters") + sizeof(UNICODE_NULL);
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ParametersRegistryKey.Buffer = ExAllocatePool(PagedPool, ParametersRegistryKey.MaximumLength);
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if (!ParametersRegistryKey.Buffer)
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{
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DPRINT("ExAllocatePool() failed\n");
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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RtlCopyUnicodeString(&ParametersRegistryKey, RegistryPath);
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RtlAppendUnicodeToString(&ParametersRegistryKey, L"\\Parameters");
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ParametersRegistryKey.Buffer[ParametersRegistryKey.Length / sizeof(WCHAR)] = UNICODE_NULL;
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RtlZeroMemory(Parameters, sizeof(Parameters));
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Parameters[0].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
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@ -163,14 +190,14 @@ ReadRegistryEntries(
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Parameters[0].DefaultType = REG_DWORD;
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Parameters[0].DefaultData = &DefaultConnectMultiplePorts;
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Parameters[0].DefaultLength = sizeof(ULONG);
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Parameters[1].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
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Parameters[1].Name = L"KeyboardDataQueueSize";
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Parameters[1].EntryContext = &DriverExtension->KeyboardDataQueueSize;
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Parameters[1].DefaultType = REG_DWORD;
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Parameters[1].DefaultData = &DefaultKeyboardDataQueueSize;
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Parameters[1].DefaultLength = sizeof(ULONG);
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Parameters[2].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
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Parameters[2].Name = L"KeyboardDeviceBaseName";
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Parameters[2].EntryContext = &DriverExtension->KeyboardDeviceBaseName;
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@ -180,7 +207,7 @@ ReadRegistryEntries(
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Status = RtlQueryRegistryValues(
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RTL_REGISTRY_ABSOLUTE,
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RegistryPath->Buffer,
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ParametersRegistryKey.Buffer,
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Parameters,
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NULL,
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NULL);
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@ -198,6 +225,16 @@ ReadRegistryEntries(
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DriverExtension->KeyboardDataQueueSize = DefaultKeyboardDataQueueSize;
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}
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}
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else if (Status == STATUS_OBJECT_NAME_NOT_FOUND)
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{
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/* Registry path doesn't exist. Set defaults */
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DriverExtension->ConnectMultiplePorts = DefaultConnectMultiplePorts;
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DriverExtension->KeyboardDataQueueSize = DefaultKeyboardDataQueueSize;
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Status = RtlDuplicateUnicodeString(
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RTL_DUPLICATE_UNICODE_STRING_NULL_TERMINATE,
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&DefaultKeyboardDeviceBaseName,
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&DriverExtension->KeyboardDeviceBaseName);
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}
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return Status;
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}
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@ -208,6 +245,7 @@ CreateKeyboardClassDeviceObject(
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OUT PDEVICE_OBJECT *ClassDO OPTIONAL)
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{
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PKBDCLASS_DRIVER_EXTENSION DriverExtension;
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UNICODE_STRING SymbolicLinkName = RTL_CONSTANT_STRING(L"\\??\\Keyboard");
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ULONG DeviceId = 0;
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ULONG PrefixLength;
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UNICODE_STRING DeviceNameU;
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@ -255,7 +293,7 @@ CreateKeyboardClassDeviceObject(
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&DeviceNameU,
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FILE_DEVICE_KEYBOARD,
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FILE_DEVICE_SECURE_OPEN,
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FALSE,
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TRUE,
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&Fdo);
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if (NT_SUCCESS(Status))
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goto cleanup;
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@ -269,9 +307,11 @@ CreateKeyboardClassDeviceObject(
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DPRINT("Too much devices starting with '\\Device\\%wZ'\n", &DriverExtension->KeyboardDeviceBaseName);
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Status = STATUS_UNSUCCESSFUL;
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cleanup:
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ExFreePool(DeviceNameU.Buffer);
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if (!NT_SUCCESS(Status))
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{
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ExFreePool(DeviceNameU.Buffer);
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return Status;
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}
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DeviceExtension = (PKBDCLASS_DEVICE_EXTENSION)Fdo->DeviceExtension;
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RtlZeroMemory(DeviceExtension, sizeof(KBDCLASS_DEVICE_EXTENSION));
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@ -282,11 +322,17 @@ cleanup:
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DeviceExtension->ReadIsPending = FALSE;
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DeviceExtension->InputCount = 0;
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DeviceExtension->PortData = ExAllocatePool(NonPagedPool, DeviceExtension->DriverExtension->KeyboardDataQueueSize * sizeof(KEYBOARD_INPUT_DATA));
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Fdo->Flags |= DO_POWER_PAGABLE;
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Fdo->Flags |= DO_POWER_PAGABLE | DO_BUFFERED_IO;
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Fdo->Flags &= ~DO_DEVICE_INITIALIZING;
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/* FIXME: create registry entry in HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP */
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/* HACK: 1st stage setup needs a keyboard to open it in user-mode
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* Create a link to user space... */
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IoCreateSymbolicLink(&SymbolicLinkName, &DeviceNameU);
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ExFreePool(DeviceNameU.Buffer);
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if (ClassDO)
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*ClassDO = Fdo;
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@ -323,7 +369,7 @@ KbdclassCallback(
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/* A read request is waiting for input, so go straight to it */
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/* FIXME: use SEH */
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RtlCopyMemory(
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Irp->MdlAddress ? MmGetSystemAddressForMdlSafe(Irp->MdlAddress, NormalPagePriority) : Irp->UserBuffer,
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Irp->MdlAddress ? MmGetSystemAddressForMdlSafe(Irp->MdlAddress, NormalPagePriority) : Irp->AssociatedIrp.SystemBuffer,
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KeyboardDataStart,
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sizeof(KEYBOARD_INPUT_DATA));
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@ -416,6 +462,9 @@ ConnectKeyboardPortDriver(
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else
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IoStatus.Status = Status;
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if (NT_SUCCESS(Status))
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ObReferenceObject(KeyboardPortDO);
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return IoStatus.Status;
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}
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@ -440,7 +489,7 @@ KbdclassAddDevice(
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NULL,
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Pdo->DeviceType,
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FILE_DEVICE_SECURE_OPEN,
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FALSE,
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TRUE,
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&Fdo);
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if (!NT_SUCCESS(Status))
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{
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@ -461,7 +510,6 @@ KbdclassAddDevice(
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return Status;
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}
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Fdo->Flags |= DO_BUFFERED_IO;
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Fdo->Flags &= ~DO_DEVICE_INITIALIZING;
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if (DriverExtension->ConnectMultiplePorts)
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Status = ConnectKeyboardPortDriver(Fdo, DriverExtension->MainKbdclassDeviceObject);
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@ -470,11 +518,12 @@ KbdclassAddDevice(
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if (!NT_SUCCESS(Status))
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{
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DPRINT("ConnectKeyboardPortDriver() failed with status 0x%08lx\n", Status);
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IoDetachDevice(DeviceExtension->LowerDevice);
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/* FIXME: why can't I cleanup without error? */
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//IoDetachDevice(Fdo);
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//IoDeleteDevice(Fdo);
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return Status;
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}
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Fdo->Flags &= ~DO_DEVICE_INITIALIZING;
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/* Register GUID_DEVINTERFACE_KEYBOARD interface */
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Status = IoRegisterDeviceInterface(
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@ -621,7 +670,7 @@ SearchForLegacyDrivers(
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{
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/* FIXME: Log the error */
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DPRINT("ConnectKeyboardPortDriver() failed with status 0x%08lx\n", Status);
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/* FIXME: cleanup */
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ObReferenceObject(PortDeviceObject);
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}
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}
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else
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@ -632,7 +681,7 @@ SearchForLegacyDrivers(
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{
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/* FIXME: Log the error */
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DPRINT("CreatePointerClassDeviceObject() failed with status 0x%08lx\n", Status);
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/* FIXME: cleanup */
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ObReferenceObject(PortDeviceObject);
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continue;
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}
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Status = ConnectKeyboardPortDriver(PortDeviceObject, ClassDO);
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@ -640,7 +689,8 @@ SearchForLegacyDrivers(
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{
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/* FIXME: Log the error */
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DPRINT("ConnectKeyboardPortDriver() failed with status 0x%08lx\n", Status);
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/* FIXME: cleanup */
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ObReferenceObject(PortDeviceObject);
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IoDeleteDevice(ClassDO);
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}
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}
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}
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@ -708,6 +758,7 @@ DriverEntry(
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DriverObject->MajorFunction[IRP_MJ_CREATE] = KbdclassCreate;
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DriverObject->MajorFunction[IRP_MJ_CLOSE] = KbdclassClose;
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DriverObject->MajorFunction[IRP_MJ_CLEANUP] = KbdclassCleanup;
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DriverObject->MajorFunction[IRP_MJ_READ] = KbdclassRead;
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DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = KbdclassDeviceControl;
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DriverObject->DriverStartIo = KbdclassStartIo;
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