/* DATA **********************************************************************/
PDRIVER_OBJECT IopRootDriverObject;
-FAST_MUTEX IopBusTypeGuidListLock;
-PIO_BUS_TYPE_GUID_LIST IopBusTypeGuidList = NULL;
+PIO_BUS_TYPE_GUID_LIST PnpBusTypeGuidList = NULL;
#if defined (ALLOC_PRAGMA)
#pragma alloc_text(INIT, PnpInit)
} INVALIDATE_DEVICE_RELATION_DATA, *PINVALIDATE_DEVICE_RELATION_DATA;
/* FUNCTIONS *****************************************************************/
-
-NTSTATUS
-IopAssignDeviceResources(
- IN PDEVICE_NODE DeviceNode,
- OUT ULONG *pRequiredSize);
-
-NTSTATUS
-IopTranslateDeviceResources(
- IN PDEVICE_NODE DeviceNode,
- IN ULONG RequiredSize);
-
-NTSTATUS
-IopUpdateResourceMapForPnPDevice(
- IN PDEVICE_NODE DeviceNode);
-
NTSTATUS
NTAPI
IopCreateDeviceKeyPath(IN PCUNICODE_STRING RegistryPath,
+ IN ULONG CreateOptions,
OUT PHANDLE Handle);
PDEVICE_NODE
NTSTATUS Status;
if (!DriverObject->DriverExtension->AddDevice)
+ {
+ DeviceNode->Flags |= DNF_LEGACY_DRIVER;
+ }
+
+ if (DeviceNode->Flags & DNF_LEGACY_DRIVER)
+ {
+ DeviceNode->Flags |= DNF_ADDED + DNF_STARTED;
return STATUS_SUCCESS;
+ }
/* This is a Plug and Play driver */
DPRINT("Plug and Play driver found\n");
ASSERT(DeviceNode->PhysicalDeviceObject);
- /* Check if this plug-and-play driver is used as a legacy one for this device node */
- if (IopDeviceNodeHasFlag(DeviceNode, DNF_LEGACY_DRIVER))
- {
- IopDeviceNodeSetFlag(DeviceNode, DNF_ADDED);
- return STATUS_SUCCESS;
- }
-
DPRINT("Calling %wZ->AddDevice(%wZ)\n",
&DriverObject->DriverName,
&DeviceNode->InstancePath);
ObDereferenceObject(Fdo);
IopDeviceNodeSetFlag(DeviceNode, DNF_ADDED);
- IopDeviceNodeSetFlag(DeviceNode, DNF_NEED_ENUMERATION_ONLY);
return STATUS_SUCCESS;
}
+VOID
+NTAPI
+IopSendRemoveDevice(IN PDEVICE_OBJECT DeviceObject)
+{
+ IO_STACK_LOCATION Stack;
+ PVOID Dummy;
+
+ RtlZeroMemory(&Stack, sizeof(IO_STACK_LOCATION));
+ Stack.MajorFunction = IRP_MJ_PNP;
+ Stack.MinorFunction = IRP_MN_REMOVE_DEVICE;
+
+ /* Drivers should never fail a IRP_MN_REMOVE_DEVICE request */
+ IopSynchronousCall(DeviceObject, &Stack, &Dummy);
+}
+
+VOID
+NTAPI
+IopStartDevice2(IN PDEVICE_OBJECT DeviceObject)
+{
+ IO_STACK_LOCATION Stack;
+ PDEVICE_NODE DeviceNode;
+ NTSTATUS Status;
+ PVOID Dummy;
+
+ /* Get the device node */
+ DeviceNode = IopGetDeviceNode(DeviceObject);
+
+ /* Build the I/O stack locaiton */
+ RtlZeroMemory(&Stack, sizeof(IO_STACK_LOCATION));
+ Stack.MajorFunction = IRP_MJ_PNP;
+ Stack.MinorFunction = IRP_MN_START_DEVICE;
+
+ /* Check if we didn't already report the resources */
+ if (!(DeviceNode->Flags & DNF_RESOURCE_REPORTED))
+ {
+ /* Report them */
+ Stack.Parameters.StartDevice.AllocatedResources =
+ DeviceNode->ResourceList;
+ Stack.Parameters.StartDevice.AllocatedResourcesTranslated =
+ DeviceNode->ResourceListTranslated;
+ }
+
+ /* I don't think we set this flag yet */
+ ASSERT(!(DeviceNode->Flags & DNF_STOPPED));
+
+ /* Do the call */
+ Status = IopSynchronousCall(DeviceObject, &Stack, &Dummy);
+ if (!NT_SUCCESS(Status))
+ {
+ /* Send an IRP_MN_REMOVE_DEVICE request */
+ IopSendRemoveDevice(DeviceObject);
+
+ /* Set the appropriate flag */
+ DeviceNode->Flags |= DNF_START_FAILED;
+
+ DPRINT1("Warning: PnP Start failed (%wZ)\n", &DeviceNode->InstancePath);
+ return;
+ }
+
+ /* Otherwise, mark us as started */
+ DeviceNode->Flags |= DNF_STARTED;
+
+ /* We now need enumeration */
+ DeviceNode->Flags |= DNF_NEED_ENUMERATION_ONLY;
+}
+
+NTSTATUS
+NTAPI
+IopStartAndEnumerateDevice(IN PDEVICE_NODE DeviceNode)
+{
+ PDEVICE_OBJECT DeviceObject;
+ NTSTATUS Status;
+ PAGED_CODE();
+
+ /* Sanity check */
+ ASSERT((DeviceNode->Flags & DNF_ADDED));
+ ASSERT((DeviceNode->Flags & (DNF_RESOURCE_ASSIGNED |
+ DNF_RESOURCE_REPORTED |
+ DNF_NO_RESOURCE_REQUIRED)));
+ ASSERT((!(DeviceNode->Flags & (DNF_HAS_PROBLEM |
+ DNF_STARTED |
+ DNF_START_REQUEST_PENDING))));
+
+ /* Get the device object */
+ DeviceObject = DeviceNode->PhysicalDeviceObject;
+
+ /* Check if we're not started yet */
+ if (!(DeviceNode->Flags & DNF_STARTED))
+ {
+ /* Start us */
+ IopStartDevice2(DeviceObject);
+ }
+
+ /* Do we need to query IDs? This happens in the case of manual reporting */
+#if 0
+ if (DeviceNode->Flags & DNF_NEED_QUERY_IDS)
+ {
+ DPRINT1("Warning: Device node has DNF_NEED_QUERY_IDS\n");
+ /* And that case shouldn't happen yet */
+ ASSERT(FALSE);
+ }
+#endif
+
+ /* Make sure we're started, and check if we need enumeration */
+ if ((DeviceNode->Flags & DNF_STARTED) &&
+ (DeviceNode->Flags & DNF_NEED_ENUMERATION_ONLY))
+ {
+ /* Enumerate us */
+ IoSynchronousInvalidateDeviceRelations(DeviceObject, BusRelations);
+ IopDeviceNodeClearFlag(DeviceNode, DNF_NEED_ENUMERATION_ONLY);
+ Status = STATUS_SUCCESS;
+ }
+ else
+ {
+ /* Nothing to do */
+ Status = STATUS_SUCCESS;
+ }
+
+ /* Return */
+ return Status;
+}
+
NTSTATUS
IopStartDevice(
PDEVICE_NODE DeviceNode)
{
- IO_STATUS_BLOCK IoStatusBlock;
- IO_STACK_LOCATION Stack;
- ULONG RequiredLength;
NTSTATUS Status;
- HANDLE InstanceHandle, ControlHandle;
+ HANDLE InstanceHandle = INVALID_HANDLE_VALUE, ControlHandle = INVALID_HANDLE_VALUE;
UNICODE_STRING KeyName;
OBJECT_ATTRIBUTES ObjectAttributes;
- IopDeviceNodeSetFlag(DeviceNode, DNF_ASSIGNING_RESOURCES);
- DPRINT("Sending IRP_MN_FILTER_RESOURCE_REQUIREMENTS to device stack\n");
- Stack.Parameters.FilterResourceRequirements.IoResourceRequirementList = DeviceNode->ResourceRequirements;
- Status = IopInitiatePnpIrp(
- DeviceNode->PhysicalDeviceObject,
- &IoStatusBlock,
- IRP_MN_FILTER_RESOURCE_REQUIREMENTS,
- &Stack);
- if (!NT_SUCCESS(Status) && Status != STATUS_NOT_SUPPORTED)
- {
- DPRINT("IopInitiatePnpIrp(IRP_MN_FILTER_RESOURCE_REQUIREMENTS) failed\n");
- return Status;
- }
- DeviceNode->ResourceRequirements = (PIO_RESOURCE_REQUIREMENTS_LIST)IoStatusBlock.Information;
-
- Status = IopAssignDeviceResources(DeviceNode, &RequiredLength);
- if (NT_SUCCESS(Status))
- {
- Status = IopTranslateDeviceResources(DeviceNode, RequiredLength);
- if (NT_SUCCESS(Status))
- {
- Status = IopUpdateResourceMapForPnPDevice(DeviceNode);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("IopUpdateResourceMap() failed (Status 0x%08lx)\n", Status);
- }
- }
- else
- {
- DPRINT("IopTranslateDeviceResources() failed (Status 0x%08lx)\n", Status);
- }
- }
- else
+ if (DeviceNode->Flags & (DNF_STARTED | DNF_START_REQUEST_PENDING))
{
- DPRINT("IopAssignDeviceResources() failed (Status 0x%08lx)\n", Status);
+ /* Nothing to do here */
+ return STATUS_SUCCESS;
}
- IopDeviceNodeClearFlag(DeviceNode, DNF_ASSIGNING_RESOURCES);
-
- DPRINT("Sending IRP_MN_START_DEVICE to driver\n");
- Stack.Parameters.StartDevice.AllocatedResources = DeviceNode->ResourceList;
- Stack.Parameters.StartDevice.AllocatedResourcesTranslated = DeviceNode->ResourceListTranslated;
-
- /*
- * Windows NT Drivers receive IRP_MN_START_DEVICE in a critical region and
- * actually _depend_ on this!. This is because NT will lock the Device Node
- * with an ERESOURCE, which of course requires APCs to be disabled.
- */
- KeEnterCriticalRegion();
-
- Status = IopInitiatePnpIrp(
- DeviceNode->PhysicalDeviceObject,
- &IoStatusBlock,
- IRP_MN_START_DEVICE,
- &Stack);
-
- KeLeaveCriticalRegion();
+ Status = IopAssignDeviceResources(DeviceNode);
if (!NT_SUCCESS(Status))
- {
- DPRINT("IopInitiatePnpIrp() failed\n");
- }
- else
- {
- if (IopDeviceNodeHasFlag(DeviceNode, DNF_NEED_ENUMERATION_ONLY))
- {
- DPRINT("Device needs enumeration, invalidating bus relations\n");
- /* Invalidate device relations synchronously
- (otherwise there will be dirty read of DeviceNode) */
- IopEnumerateDevice(DeviceNode->PhysicalDeviceObject);
- IopDeviceNodeClearFlag(DeviceNode, DNF_NEED_ENUMERATION_ONLY);
- }
- }
+ goto ByeBye;
- Status = IopCreateDeviceKeyPath(&DeviceNode->InstancePath, &InstanceHandle);
+ /* New PnP ABI */
+ IopStartAndEnumerateDevice(DeviceNode);
+
+ /* FIX: Should be done in new device instance code */
+ Status = IopCreateDeviceKeyPath(&DeviceNode->InstancePath, 0, &InstanceHandle);
if (!NT_SUCCESS(Status))
- return Status;
+ goto ByeBye;
+ /* FIX: Should be done in IoXxxPrepareDriverLoading */
+ // {
RtlInitUnicodeString(&KeyName, L"Control");
InitializeObjectAttributes(&ObjectAttributes,
&KeyName,
NULL);
Status = ZwCreateKey(&ControlHandle, KEY_SET_VALUE, &ObjectAttributes, 0, NULL, REG_OPTION_VOLATILE, NULL);
if (!NT_SUCCESS(Status))
- {
- ZwClose(InstanceHandle);
- return Status;
- }
+ goto ByeBye;
RtlInitUnicodeString(&KeyName, L"ActiveService");
Status = ZwSetValueKey(ControlHandle, &KeyName, 0, REG_SZ, DeviceNode->ServiceName.Buffer, DeviceNode->ServiceName.Length);
+ // }
- if (NT_SUCCESS(Status))
- IopDeviceNodeSetFlag(DeviceNode, DNF_STARTED);
+ByeBye:
+ if (ControlHandle != INVALID_HANDLE_VALUE)
+ ZwClose(ControlHandle);
- ZwClose(ControlHandle);
- ZwClose(InstanceHandle);
+ if (InstanceHandle != INVALID_HANDLE_VALUE)
+ ZwClose(InstanceHandle);
return Status;
}
PVOID NewList;
/* Acquire the lock */
- ExAcquireFastMutex(&IopBusTypeGuidListLock);
+ ExAcquireFastMutex(&PnpBusTypeGuidList->Lock);
/* Loop all entries */
- while (i < IopBusTypeGuidList->GuidCount)
+ while (i < PnpBusTypeGuidList->GuidCount)
{
/* Try to find a match */
if (RtlCompareMemory(BusTypeGuid,
- &IopBusTypeGuidList->Guids[i],
+ &PnpBusTypeGuidList->Guids[i],
sizeof(GUID)) == sizeof(GUID))
{
/* Found it */
}
/* Check if we have to grow the list */
- if (IopBusTypeGuidList->GuidCount)
+ if (PnpBusTypeGuidList->GuidCount)
{
/* Calculate the new size */
NewSize = sizeof(IO_BUS_TYPE_GUID_LIST) +
- (sizeof(GUID) * IopBusTypeGuidList->GuidCount);
+ (sizeof(GUID) * PnpBusTypeGuidList->GuidCount);
/* Allocate the new copy */
NewList = ExAllocatePool(PagedPool, NewSize);
if (!NewList) {
/* Fail */
- ExFreePool(IopBusTypeGuidList);
+ ExFreePool(PnpBusTypeGuidList);
goto Quickie;
}
/* Now copy them, decrease the size too */
NewSize -= sizeof(GUID);
- RtlCopyMemory(NewList, IopBusTypeGuidList, NewSize);
+ RtlCopyMemory(NewList, PnpBusTypeGuidList, NewSize);
/* Free the old list */
- ExFreePool(IopBusTypeGuidList);
+ ExFreePool(PnpBusTypeGuidList);
/* Use the new buffer */
- IopBusTypeGuidList = NewList;
+ PnpBusTypeGuidList = NewList;
}
/* Copy the new GUID */
- RtlCopyMemory(&IopBusTypeGuidList->Guids[IopBusTypeGuidList->GuidCount],
+ RtlCopyMemory(&PnpBusTypeGuidList->Guids[PnpBusTypeGuidList->GuidCount],
BusTypeGuid,
sizeof(GUID));
/* The new entry is the index */
- FoundIndex = (USHORT)IopBusTypeGuidList->GuidCount;
- IopBusTypeGuidList->GuidCount++;
+ FoundIndex = (USHORT)PnpBusTypeGuidList->GuidCount;
+ PnpBusTypeGuidList->GuidCount++;
Quickie:
- ExReleaseFastMutex(&IopBusTypeGuidListLock);
+ ExReleaseFastMutex(&PnpBusTypeGuidList->Lock);
return FoundIndex;
}
UNICODE_STRING FullServiceName;
UNICODE_STRING LegacyPrefix = RTL_CONSTANT_STRING(L"LEGACY_");
UNICODE_STRING UnknownDeviceName = RTL_CONSTANT_STRING(L"UNKNOWN");
- HANDLE TempHandle;
+ UNICODE_STRING KeyName, ClassName;
+ PUNICODE_STRING ServiceName1;
+ ULONG LegacyValue;
+#if 0
+ UNICODE_STRING ClassGUID;
+#endif
+ HANDLE InstanceHandle;
DPRINT("ParentNode 0x%p PhysicalDeviceObject 0x%p ServiceName %wZ\n",
ParentNode, PhysicalDeviceObject, ServiceName);
RtlZeroMemory(Node, sizeof(DEVICE_NODE));
if (!ServiceName)
- ServiceName = &UnknownDeviceName;
+ ServiceName1 = &UnknownDeviceName;
+ else
+ ServiceName1 = ServiceName;
if (!PhysicalDeviceObject)
{
- FullServiceName.MaximumLength = LegacyPrefix.Length + ServiceName->Length;
+ FullServiceName.MaximumLength = LegacyPrefix.Length + ServiceName1->Length;
FullServiceName.Length = 0;
FullServiceName.Buffer = ExAllocatePool(PagedPool, FullServiceName.MaximumLength);
if (!FullServiceName.Buffer)
}
RtlAppendUnicodeStringToString(&FullServiceName, &LegacyPrefix);
- RtlAppendUnicodeStringToString(&FullServiceName, ServiceName);
+ RtlAppendUnicodeStringToString(&FullServiceName, ServiceName1);
Status = PnpRootCreateDevice(&FullServiceName, &PhysicalDeviceObject, &Node->InstancePath);
if (!NT_SUCCESS(Status))
}
/* Create the device key for legacy drivers */
- Status = IopCreateDeviceKeyPath(&Node->InstancePath, &TempHandle);
+ Status = IopCreateDeviceKeyPath(&Node->InstancePath, REG_OPTION_VOLATILE, &InstanceHandle);
+ if (!NT_SUCCESS(Status))
+ {
+ ZwClose(InstanceHandle);
+ ExFreePool(Node);
+ ExFreePool(FullServiceName.Buffer);
+ return Status;
+ }
+
+ Node->ServiceName.Buffer = ExAllocatePool(PagedPool, ServiceName1->Length);
+ if (!Node->ServiceName.Buffer)
+ {
+ ZwClose(InstanceHandle);
+ ExFreePool(Node);
+ ExFreePool(FullServiceName.Buffer);
+ return Status;
+ }
+
+ Node->ServiceName.MaximumLength = ServiceName1->Length;
+ Node->ServiceName.Length = 0;
+
+ RtlAppendUnicodeStringToString(&Node->ServiceName, ServiceName1);
+
+ if (ServiceName)
+ {
+ RtlInitUnicodeString(&KeyName, L"Service");
+ Status = ZwSetValueKey(InstanceHandle, &KeyName, 0, REG_SZ, ServiceName->Buffer, ServiceName->Length);
+ }
+
if (NT_SUCCESS(Status))
- ZwClose(TempHandle);
+ {
+ RtlInitUnicodeString(&KeyName, L"Legacy");
+
+ LegacyValue = 1;
+ Status = ZwSetValueKey(InstanceHandle, &KeyName, 0, REG_DWORD, &LegacyValue, sizeof(LegacyValue));
+ if (NT_SUCCESS(Status))
+ {
+ RtlInitUnicodeString(&KeyName, L"Class");
+
+ RtlInitUnicodeString(&ClassName, L"LegacyDriver");
+ Status = ZwSetValueKey(InstanceHandle, &KeyName, 0, REG_SZ, ClassName.Buffer, ClassName.Length);
+#if 0
+ if (NT_SUCCESS(Status))
+ {
+ RtlInitUnicodeString(&KeyName, L"ClassGUID");
+
+ RtlInitUnicodeString(&ClassGUID, L"{8ECC055D-047F-11D1-A537-0000F8753ED1}");
+ Status = ZwSetValueKey(InstanceHandle, &KeyName, 0, REG_SZ, ClassGUID.Buffer, ClassGUID.Length);
+ }
+#endif
+ }
+ }
+ ZwClose(InstanceHandle);
ExFreePool(FullServiceName.Buffer);
- /* This is for drivers passed on the command line to ntoskrnl.exe */
- IopDeviceNodeSetFlag(Node, DNF_STARTED);
+ if (!NT_SUCCESS(Status))
+ {
+ ExFreePool(Node);
+ return Status;
+ }
+
IopDeviceNodeSetFlag(Node, DNF_LEGACY_DRIVER);
+ IopDeviceNodeSetFlag(Node, DNF_ADDED);
+ IopDeviceNodeSetFlag(Node, DNF_STARTED);
}
Node->PhysicalDeviceObject = PhysicalDeviceObject;
}
NTSTATUS
-IopInitiatePnpIrp(PDEVICE_OBJECT DeviceObject,
- PIO_STATUS_BLOCK IoStatusBlock,
- ULONG MinorFunction,
- PIO_STACK_LOCATION Stack OPTIONAL)
+NTAPI
+IopSynchronousCall(IN PDEVICE_OBJECT DeviceObject,
+ IN PIO_STACK_LOCATION IoStackLocation,
+ OUT PVOID *Information)
{
- PDEVICE_OBJECT TopDeviceObject;
- PIO_STACK_LOCATION IrpSp;
- NTSTATUS Status;
- KEVENT Event;
- PIRP Irp;
-
- /* Always call the top of the device stack */
- TopDeviceObject = IoGetAttachedDeviceReference(DeviceObject);
-
- KeInitializeEvent(
- &Event,
- NotificationEvent,
- FALSE);
-
- Irp = IoBuildSynchronousFsdRequest(
- IRP_MJ_PNP,
- TopDeviceObject,
- NULL,
- 0,
- NULL,
- &Event,
- IoStatusBlock);
-
- /* PNP IRPs are initialized with a status code of STATUS_NOT_SUPPORTED */
- Irp->IoStatus.Status = STATUS_NOT_SUPPORTED;
- Irp->IoStatus.Information = 0;
-
- if (MinorFunction == IRP_MN_FILTER_RESOURCE_REQUIREMENTS)
- {
- Irp->IoStatus.Information = (ULONG_PTR)Stack->Parameters.FilterResourceRequirements.IoResourceRequirementList;
- }
-
- IrpSp = IoGetNextIrpStackLocation(Irp);
- IrpSp->MinorFunction = (UCHAR)MinorFunction;
-
- if (Stack)
- {
- RtlCopyMemory(&IrpSp->Parameters,
- &Stack->Parameters,
- sizeof(Stack->Parameters));
- }
-
- Status = IoCallDriver(TopDeviceObject, Irp);
- if (Status == STATUS_PENDING)
- {
- KeWaitForSingleObject(&Event,
- Executive,
- KernelMode,
- FALSE,
- NULL);
- Status = IoStatusBlock->Status;
- }
-
- ObDereferenceObject(TopDeviceObject);
-
- return Status;
+ PIRP Irp;
+ PIO_STACK_LOCATION IrpStack;
+ IO_STATUS_BLOCK IoStatusBlock;
+ KEVENT Event;
+ NTSTATUS Status;
+ PDEVICE_OBJECT TopDeviceObject;
+ PAGED_CODE();
+
+ /* Call the top of the device stack */
+ TopDeviceObject = IoGetAttachedDeviceReference(DeviceObject);
+
+ /* Allocate an IRP */
+ Irp = IoAllocateIrp(TopDeviceObject->StackSize, FALSE);
+ if (!Irp) return STATUS_INSUFFICIENT_RESOURCES;
+
+ /* Initialize to failure */
+ Irp->IoStatus.Status = IoStatusBlock.Status = STATUS_NOT_SUPPORTED;
+ Irp->IoStatus.Information = IoStatusBlock.Information = 0;
+
+ /* Initialize the event */
+ KeInitializeEvent(&Event, SynchronizationEvent, FALSE);
+
+ /* Set them up */
+ Irp->UserIosb = &IoStatusBlock;
+ Irp->UserEvent = &Event;
+
+ /* Queue the IRP */
+ Irp->Tail.Overlay.Thread = PsGetCurrentThread();
+ IoQueueThreadIrp(Irp);
+
+ /* Copy-in the stack */
+ IrpStack = IoGetNextIrpStackLocation(Irp);
+ *IrpStack = *IoStackLocation;
+
+ /* Call the driver */
+ Status = IoCallDriver(TopDeviceObject, Irp);
+ if (Status == STATUS_PENDING)
+ {
+ /* Wait for it */
+ KeWaitForSingleObject(&Event,
+ Executive,
+ KernelMode,
+ FALSE,
+ NULL);
+ Status = IoStatusBlock.Status;
+ }
+
+ /* Return the information */
+ *Information = (PVOID)IoStatusBlock.Information;
+ return Status;
}
+NTSTATUS
+NTAPI
+IopInitiatePnpIrp(IN PDEVICE_OBJECT DeviceObject,
+ IN OUT PIO_STATUS_BLOCK IoStatusBlock,
+ IN ULONG MinorFunction,
+ IN PIO_STACK_LOCATION Stack OPTIONAL)
+{
+ IO_STACK_LOCATION IoStackLocation;
+
+ /* Fill out the stack information */
+ RtlZeroMemory(&IoStackLocation, sizeof(IO_STACK_LOCATION));
+ IoStackLocation.MajorFunction = IRP_MJ_PNP;
+ IoStackLocation.MinorFunction = MinorFunction;
+ if (Stack)
+ {
+ /* Copy the rest */
+ RtlCopyMemory(&IoStackLocation.Parameters,
+ &Stack->Parameters,
+ sizeof(Stack->Parameters));
+ }
+
+ /* Do the PnP call */
+ IoStatusBlock->Status = IopSynchronousCall(DeviceObject,
+ &IoStackLocation,
+ (PVOID)&IoStatusBlock->Information);
+ return IoStatusBlock->Status;
+}
NTSTATUS
IopTraverseDeviceTreeNode(PDEVICETREE_TRAVERSE_CONTEXT Context)
* Handle to the newly created key
*
* Remarks
- * This method can create nested trees, so parent of RegistryPath can
- * be not existant, and will be created if needed.
- */
-NTSTATUS
-NTAPI
-IopCreateDeviceKeyPath(IN PCUNICODE_STRING RegistryPath,
- OUT PHANDLE Handle)
-{
- UNICODE_STRING EnumU = RTL_CONSTANT_STRING(ENUM_ROOT);
- HANDLE hParent = NULL, hKey;
- OBJECT_ATTRIBUTES ObjectAttributes;
- UNICODE_STRING KeyName;
- LPCWSTR Current, Last;
- ULONG dwLength;
- NTSTATUS Status;
-
- /* Assume failure */
- *Handle = NULL;
-
- /* Open root key for device instances */
- Status = IopOpenRegistryKeyEx(&hParent, NULL, &EnumU, KEY_CREATE_SUB_KEY);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("ZwOpenKey('%wZ') failed with status 0x%08lx\n", &EnumU, Status);
- return Status;
- }
-
- Current = KeyName.Buffer = RegistryPath->Buffer;
- Last = &RegistryPath->Buffer[RegistryPath->Length / sizeof(WCHAR)];
-
- /* Go up to the end of the string */
- while (Current <= Last)
- {
- if (Current != Last && *Current != '\\')
- {
- /* Not the end of the string and not a separator */
- Current++;
- continue;
- }
-
- /* Prepare relative key name */
- dwLength = (ULONG_PTR)Current - (ULONG_PTR)KeyName.Buffer;
- KeyName.MaximumLength = KeyName.Length = dwLength;
- DPRINT("Create '%wZ'\n", &KeyName);
-
- /* Open key */
- InitializeObjectAttributes(&ObjectAttributes,
- &KeyName,
- OBJ_CASE_INSENSITIVE,
- hParent,
- NULL);
- Status = ZwCreateKey(&hKey,
- Current == Last ? KEY_ALL_ACCESS : KEY_CREATE_SUB_KEY,
- &ObjectAttributes,
- 0,
- NULL,
- 0,
- NULL);
-
- /* Close parent key handle, we don't need it anymore */
- if (hParent)
- ZwClose(hParent);
-
- /* Key opening/creating failed? */
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("ZwCreateKey('%wZ') failed with status 0x%08lx\n", &KeyName, Status);
- return Status;
- }
-
- /* Check if it is the end of the string */
- if (Current == Last)
- {
- /* Yes, return success */
- *Handle = hKey;
- return STATUS_SUCCESS;
- }
-
- /* Start with this new parent key */
- hParent = hKey;
- Current++;
- KeyName.Buffer = (LPWSTR)Current;
- }
-
- return STATUS_UNSUCCESSFUL;
-}
-
-NTSTATUS
-IopUpdateResourceMap(IN PDEVICE_NODE DeviceNode, PWCHAR Level1Key, PWCHAR Level2Key)
-{
- NTSTATUS Status;
- ULONG Disposition;
- HANDLE PnpMgrLevel1, PnpMgrLevel2, ResourceMapKey;
- UNICODE_STRING KeyName;
- OBJECT_ATTRIBUTES ObjectAttributes;
-
- RtlInitUnicodeString(&KeyName,
- L"\\Registry\\Machine\\HARDWARE\\RESOURCEMAP");
- InitializeObjectAttributes(&ObjectAttributes,
- &KeyName,
- OBJ_CASE_INSENSITIVE | OBJ_OPENIF,
- 0,
- NULL);
- Status = ZwCreateKey(&ResourceMapKey,
- KEY_ALL_ACCESS,
- &ObjectAttributes,
- 0,
- NULL,
- REG_OPTION_VOLATILE,
- &Disposition);
- if (!NT_SUCCESS(Status))
- return Status;
-
- RtlInitUnicodeString(&KeyName, Level1Key);
- InitializeObjectAttributes(&ObjectAttributes,
- &KeyName,
- OBJ_CASE_INSENSITIVE | OBJ_OPENIF,
- ResourceMapKey,
- NULL);
- Status = ZwCreateKey(&PnpMgrLevel1,
- KEY_ALL_ACCESS,
- &ObjectAttributes,
- 0,
- NULL,
- REG_OPTION_VOLATILE,
- &Disposition);
- ZwClose(ResourceMapKey);
- if (!NT_SUCCESS(Status))
- return Status;
-
- RtlInitUnicodeString(&KeyName, Level2Key);
- InitializeObjectAttributes(&ObjectAttributes,
- &KeyName,
- OBJ_CASE_INSENSITIVE | OBJ_OPENIF,
- PnpMgrLevel1,
- NULL);
- Status = ZwCreateKey(&PnpMgrLevel2,
- KEY_ALL_ACCESS,
- &ObjectAttributes,
- 0,
- NULL,
- REG_OPTION_VOLATILE,
- &Disposition);
- ZwClose(PnpMgrLevel1);
- if (!NT_SUCCESS(Status))
- return Status;
-
- if (DeviceNode->ResourceList)
- {
- WCHAR NameBuff[256];
- UNICODE_STRING NameU;
- UNICODE_STRING Suffix;
- ULONG OldLength;
-
- ASSERT(DeviceNode->ResourceListTranslated);
-
- NameU.Buffer = NameBuff;
- NameU.Length = 0;
- NameU.MaximumLength = 256 * sizeof(WCHAR);
-
- Status = IoGetDeviceProperty(DeviceNode->PhysicalDeviceObject,
- DevicePropertyPhysicalDeviceObjectName,
- NameU.MaximumLength,
- NameU.Buffer,
- &OldLength);
- ASSERT(Status == STATUS_SUCCESS);
-
- NameU.Length = (USHORT)OldLength;
-
- RtlInitUnicodeString(&Suffix, L".Raw");
- RtlAppendUnicodeStringToString(&NameU, &Suffix);
-
- Status = ZwSetValueKey(PnpMgrLevel2,
- &NameU,
- 0,
- REG_RESOURCE_LIST,
- DeviceNode->ResourceList,
- CM_RESOURCE_LIST_SIZE(DeviceNode->ResourceList));
- if (!NT_SUCCESS(Status))
- {
- ZwClose(PnpMgrLevel2);
- return Status;
- }
-
- /* "Remove" the suffix by setting the length back to what it used to be */
- NameU.Length = (USHORT)OldLength;
-
- RtlInitUnicodeString(&Suffix, L".Translated");
- RtlAppendUnicodeStringToString(&NameU, &Suffix);
-
- Status = ZwSetValueKey(PnpMgrLevel2,
- &NameU,
- 0,
- REG_RESOURCE_LIST,
- DeviceNode->ResourceListTranslated,
- CM_RESOURCE_LIST_SIZE(DeviceNode->ResourceListTranslated));
- ZwClose(PnpMgrLevel2);
- if (!NT_SUCCESS(Status))
- return Status;
- }
- else
- {
- ZwClose(PnpMgrLevel2);
- }
-
- IopDeviceNodeSetFlag(DeviceNode, DNF_RESOURCE_ASSIGNED);
-
- return STATUS_SUCCESS;
-}
-
-NTSTATUS
-IopUpdateResourceMapForPnPDevice(IN PDEVICE_NODE DeviceNode)
-{
- return IopUpdateResourceMap(DeviceNode, L"PnP Manager", L"PnpManager");
-}
-
-NTSTATUS
-IopSetDeviceInstanceData(HANDLE InstanceKey,
- PDEVICE_NODE DeviceNode)
-{
- OBJECT_ATTRIBUTES ObjectAttributes;
- UNICODE_STRING KeyName;
- HANDLE LogConfKey;
- ULONG ResCount;
- ULONG ListSize, ResultLength;
- NTSTATUS Status;
- HANDLE ControlHandle;
-
- DPRINT("IopSetDeviceInstanceData() called\n");
-
- /* Create the 'LogConf' key */
- RtlInitUnicodeString(&KeyName, L"LogConf");
- InitializeObjectAttributes(&ObjectAttributes,
- &KeyName,
- OBJ_CASE_INSENSITIVE,
- InstanceKey,
- NULL);
- Status = ZwCreateKey(&LogConfKey,
- KEY_ALL_ACCESS,
- &ObjectAttributes,
- 0,
- NULL,
- 0,
- NULL);
- if (NT_SUCCESS(Status))
- {
- /* Set 'BootConfig' value */
- if (DeviceNode->BootResources != NULL)
- {
- ResCount = DeviceNode->BootResources->Count;
- if (ResCount != 0)
- {
- ListSize = CM_RESOURCE_LIST_SIZE(DeviceNode->BootResources);
-
- RtlInitUnicodeString(&KeyName, L"BootConfig");
- Status = ZwSetValueKey(LogConfKey,
- &KeyName,
- 0,
- REG_RESOURCE_LIST,
- DeviceNode->BootResources,
- ListSize);
- }
- }
-
- /* Set 'BasicConfigVector' value */
- if (DeviceNode->ResourceRequirements != NULL &&
- DeviceNode->ResourceRequirements->ListSize != 0)
- {
- RtlInitUnicodeString(&KeyName, L"BasicConfigVector");
- Status = ZwSetValueKey(LogConfKey,
- &KeyName,
- 0,
- REG_RESOURCE_REQUIREMENTS_LIST,
- DeviceNode->ResourceRequirements,
- DeviceNode->ResourceRequirements->ListSize);
- }
-
- ZwClose(LogConfKey);
- }
-
- /* Set the 'ConfigFlags' value */
- RtlInitUnicodeString(&KeyName, L"ConfigFlags");
- Status = ZwQueryValueKey(InstanceKey,
- &KeyName,
- KeyValueBasicInformation,
- NULL,
- 0,
- &ResultLength);
- if (Status == STATUS_OBJECT_NAME_NOT_FOUND)
- {
- /* Write the default value */
- ULONG DefaultConfigFlags = 0;
- Status = ZwSetValueKey(InstanceKey,
- &KeyName,
- 0,
- REG_DWORD,
- &DefaultConfigFlags,
- sizeof(DefaultConfigFlags));
- }
-
- /* Create the 'Control' key */
- RtlInitUnicodeString(&KeyName, L"Control");
- InitializeObjectAttributes(&ObjectAttributes,
- &KeyName,
- OBJ_CASE_INSENSITIVE,
- InstanceKey,
- NULL);
- Status = ZwCreateKey(&ControlHandle, 0, &ObjectAttributes, 0, NULL, REG_OPTION_VOLATILE, NULL);
-
- if (NT_SUCCESS(Status))
- ZwClose(ControlHandle);
-
- DPRINT("IopSetDeviceInstanceData() done\n");
-
- return Status;
-}
-
-BOOLEAN
-IopCheckResourceDescriptor(
- IN PCM_PARTIAL_RESOURCE_DESCRIPTOR ResDesc,
- IN PCM_RESOURCE_LIST ResourceList,
- IN BOOLEAN Silent,
- OUT OPTIONAL PCM_PARTIAL_RESOURCE_DESCRIPTOR ConflictingDescriptor)
-{
- ULONG i, ii;
- BOOLEAN Result = FALSE;
-
- if (ResDesc->ShareDisposition == CmResourceShareShared)
- return FALSE;
-
- for (i = 0; i < ResourceList->Count; i++)
- {
- PCM_PARTIAL_RESOURCE_LIST ResList = &ResourceList->List[i].PartialResourceList;
- for (ii = 0; ii < ResList->Count; ii++)
- {
- PCM_PARTIAL_RESOURCE_DESCRIPTOR ResDesc2 = &ResList->PartialDescriptors[ii];
-
- /* We don't care about shared resources */
- if (ResDesc->ShareDisposition == CmResourceShareShared &&
- ResDesc2->ShareDisposition == CmResourceShareShared)
- continue;
-
- /* Make sure we're comparing the same types */
- if (ResDesc->Type != ResDesc2->Type)
- continue;
-
- switch (ResDesc->Type)
- {
- case CmResourceTypeMemory:
- if ((ResDesc->u.Memory.Start.QuadPart < ResDesc2->u.Memory.Start.QuadPart &&
- ResDesc->u.Memory.Start.QuadPart + ResDesc->u.Memory.Length >
- ResDesc2->u.Memory.Start.QuadPart) || (ResDesc2->u.Memory.Start.QuadPart <
- ResDesc->u.Memory.Start.QuadPart && ResDesc2->u.Memory.Start.QuadPart +
- ResDesc2->u.Memory.Length > ResDesc->u.Memory.Start.QuadPart))
- {
- if (!Silent)
- {
- DPRINT1("Resource conflict: Memory (0x%x to 0x%x vs. 0x%x to 0x%x)\n",
- ResDesc->u.Memory.Start.QuadPart, ResDesc->u.Memory.Start.QuadPart +
- ResDesc->u.Memory.Length, ResDesc2->u.Memory.Start.QuadPart,
- ResDesc2->u.Memory.Start.QuadPart + ResDesc2->u.Memory.Length);
- }
-
- Result = TRUE;
-
- goto ByeBye;
- }
- break;
-
- case CmResourceTypePort:
- if ((ResDesc->u.Port.Start.QuadPart < ResDesc2->u.Port.Start.QuadPart &&
- ResDesc->u.Port.Start.QuadPart + ResDesc->u.Port.Length >
- ResDesc2->u.Port.Start.QuadPart) || (ResDesc2->u.Port.Start.QuadPart <
- ResDesc->u.Port.Start.QuadPart && ResDesc2->u.Port.Start.QuadPart +
- ResDesc2->u.Port.Length > ResDesc->u.Port.Start.QuadPart))
- {
- if (!Silent)
- {
- DPRINT1("Resource conflict: Port (0x%x to 0x%x vs. 0x%x to 0x%x)\n",
- ResDesc->u.Port.Start.QuadPart, ResDesc->u.Port.Start.QuadPart +
- ResDesc->u.Port.Length, ResDesc2->u.Port.Start.QuadPart,
- ResDesc2->u.Port.Start.QuadPart + ResDesc2->u.Port.Length);
- }
-
- Result = TRUE;
-
- goto ByeBye;
- }
- break;
-
- case CmResourceTypeInterrupt:
- if (ResDesc->u.Interrupt.Vector == ResDesc2->u.Interrupt.Vector)
- {
- if (!Silent)
- {
- DPRINT1("Resource conflict: IRQ (0x%x 0x%x vs. 0x%x 0x%x)\n",
- ResDesc->u.Interrupt.Vector, ResDesc->u.Interrupt.Level,
- ResDesc2->u.Interrupt.Vector, ResDesc2->u.Interrupt.Level);
- }
-
- Result = TRUE;
-
- goto ByeBye;
- }
- break;
-
- case CmResourceTypeBusNumber:
- if ((ResDesc->u.BusNumber.Start < ResDesc2->u.BusNumber.Start &&
- ResDesc->u.BusNumber.Start + ResDesc->u.BusNumber.Length >
- ResDesc2->u.BusNumber.Start) || (ResDesc2->u.BusNumber.Start <
- ResDesc->u.BusNumber.Start && ResDesc2->u.BusNumber.Start +
- ResDesc2->u.BusNumber.Length > ResDesc->u.BusNumber.Start))
- {
- if (!Silent)
- {
- DPRINT1("Resource conflict: Bus number (0x%x to 0x%x vs. 0x%x to 0x%x)\n",
- ResDesc->u.BusNumber.Start, ResDesc->u.BusNumber.Start +
- ResDesc->u.BusNumber.Length, ResDesc2->u.BusNumber.Start,
- ResDesc2->u.BusNumber.Start + ResDesc2->u.BusNumber.Length);
- }
-
- Result = TRUE;
-
- goto ByeBye;
- }
- break;
-
- case CmResourceTypeDma:
- if (ResDesc->u.Dma.Channel == ResDesc2->u.Dma.Channel)
- {
- if (!Silent)
- {
- DPRINT1("Resource conflict: Dma (0x%x 0x%x vs. 0x%x 0x%x)\n",
- ResDesc->u.Dma.Channel, ResDesc->u.Dma.Port,
- ResDesc2->u.Dma.Channel, ResDesc2->u.Dma.Port);
- }
-
- Result = TRUE;
-
- goto ByeBye;
- }
- break;
- }
- }
- }
-
-ByeBye:
-
- if (Result && ConflictingDescriptor)
- {
- RtlCopyMemory(ConflictingDescriptor,
- ResDesc,
- sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR));
- }
-
- return Result;
-}
-
-
-BOOLEAN
-IopCheckForResourceConflict(
- IN PCM_RESOURCE_LIST ResourceList1,
- IN PCM_RESOURCE_LIST ResourceList2,
- IN BOOLEAN Silent,
- OUT OPTIONAL PCM_PARTIAL_RESOURCE_DESCRIPTOR ConflictingDescriptor)
-{
- ULONG i, ii;
- BOOLEAN Result = FALSE;
-
- for (i = 0; i < ResourceList1->Count; i++)
- {
- PCM_PARTIAL_RESOURCE_LIST ResList = &ResourceList1->List[i].PartialResourceList;
- for (ii = 0; ii < ResList->Count; ii++)
- {
- PCM_PARTIAL_RESOURCE_DESCRIPTOR ResDesc = &ResList->PartialDescriptors[ii];
-
- Result = IopCheckResourceDescriptor(ResDesc,
- ResourceList2,
- Silent,
- ConflictingDescriptor);
- if (Result) goto ByeBye;
- }
- }
-
-
-ByeBye:
-
- return Result;
-}
-
-NTSTATUS
-IopDetectResourceConflict(
- IN PCM_RESOURCE_LIST ResourceList,
- IN BOOLEAN Silent,
- OUT OPTIONAL PCM_PARTIAL_RESOURCE_DESCRIPTOR ConflictingDescriptor)
-{
- OBJECT_ATTRIBUTES ObjectAttributes;
- UNICODE_STRING KeyName;
- HANDLE ResourceMapKey = INVALID_HANDLE_VALUE, ChildKey2 = INVALID_HANDLE_VALUE, ChildKey3 = INVALID_HANDLE_VALUE;
- ULONG KeyInformationLength, RequiredLength, KeyValueInformationLength, KeyNameInformationLength;
- PKEY_BASIC_INFORMATION KeyInformation;
- PKEY_VALUE_PARTIAL_INFORMATION KeyValueInformation;
- PKEY_VALUE_BASIC_INFORMATION KeyNameInformation;
- ULONG ChildKeyIndex1 = 0, ChildKeyIndex2 = 0, ChildKeyIndex3 = 0;
- NTSTATUS Status;
-
- RtlInitUnicodeString(&KeyName, L"\\Registry\\Machine\\HARDWARE\\RESOURCEMAP");
- InitializeObjectAttributes(&ObjectAttributes, &KeyName, OBJ_CASE_INSENSITIVE, 0, NULL);
- Status = ZwOpenKey(&ResourceMapKey, KEY_ENUMERATE_SUB_KEYS | KEY_QUERY_VALUE, &ObjectAttributes);
- if (!NT_SUCCESS(Status))
- {
- /* The key is missing which means we are the first device */
- return STATUS_SUCCESS;
- }
-
- while (TRUE)
- {
- Status = ZwEnumerateKey(ResourceMapKey,
- ChildKeyIndex1,
- KeyBasicInformation,
- NULL,
- 0,
- &RequiredLength);
- if (Status == STATUS_NO_MORE_ENTRIES)
- break;
- else if (Status == STATUS_BUFFER_OVERFLOW || Status == STATUS_BUFFER_TOO_SMALL)
- {
- KeyInformationLength = RequiredLength;
- KeyInformation = ExAllocatePool(PagedPool, KeyInformationLength);
- if (!KeyInformation)
- {
- Status = STATUS_INSUFFICIENT_RESOURCES;
- goto cleanup;
- }
-
- Status = ZwEnumerateKey(ResourceMapKey,
- ChildKeyIndex1,
- KeyBasicInformation,
- KeyInformation,
- KeyInformationLength,
- &RequiredLength);
- }
- else
- goto cleanup;
- ChildKeyIndex1++;
- if (!NT_SUCCESS(Status))
- goto cleanup;
-
- KeyName.Buffer = KeyInformation->Name;
- KeyName.MaximumLength = KeyName.Length = KeyInformation->NameLength;
- InitializeObjectAttributes(&ObjectAttributes,
- &KeyName,
- OBJ_CASE_INSENSITIVE,
- ResourceMapKey,
- NULL);
- Status = ZwOpenKey(&ChildKey2, KEY_ENUMERATE_SUB_KEYS | KEY_QUERY_VALUE, &ObjectAttributes);
- ExFreePool(KeyInformation);
- if (!NT_SUCCESS(Status))
- goto cleanup;
-
- while (TRUE)
- {
- Status = ZwEnumerateKey(ChildKey2,
- ChildKeyIndex2,
- KeyBasicInformation,
- NULL,
- 0,
- &RequiredLength);
- if (Status == STATUS_NO_MORE_ENTRIES)
- break;
- else if (Status == STATUS_BUFFER_TOO_SMALL)
- {
- KeyInformationLength = RequiredLength;
- KeyInformation = ExAllocatePool(PagedPool, KeyInformationLength);
- if (!KeyInformation)
- {
- Status = STATUS_INSUFFICIENT_RESOURCES;
- goto cleanup;
- }
-
- Status = ZwEnumerateKey(ChildKey2,
- ChildKeyIndex2,
- KeyBasicInformation,
- KeyInformation,
- KeyInformationLength,
- &RequiredLength);
- }
- else
- goto cleanup;
- ChildKeyIndex2++;
- if (!NT_SUCCESS(Status))
- goto cleanup;
-
- KeyName.Buffer = KeyInformation->Name;
- KeyName.MaximumLength = KeyName.Length = KeyInformation->NameLength;
- InitializeObjectAttributes(&ObjectAttributes,
- &KeyName,
- OBJ_CASE_INSENSITIVE,
- ChildKey2,
- NULL);
- Status = ZwOpenKey(&ChildKey3, KEY_QUERY_VALUE, &ObjectAttributes);
- ExFreePool(KeyInformation);
- if (!NT_SUCCESS(Status))
- goto cleanup;
-
- while (TRUE)
- {
- Status = ZwEnumerateValueKey(ChildKey3,
- ChildKeyIndex3,
- KeyValuePartialInformation,
- NULL,
- 0,
- &RequiredLength);
- if (Status == STATUS_NO_MORE_ENTRIES)
- break;
- else if (Status == STATUS_BUFFER_TOO_SMALL)
- {
- KeyValueInformationLength = RequiredLength;
- KeyValueInformation = ExAllocatePool(PagedPool, KeyValueInformationLength);
- if (!KeyValueInformation)
- {
- Status = STATUS_INSUFFICIENT_RESOURCES;
- goto cleanup;
- }
-
- Status = ZwEnumerateValueKey(ChildKey3,
- ChildKeyIndex3,
- KeyValuePartialInformation,
- KeyValueInformation,
- KeyValueInformationLength,
- &RequiredLength);
- }
- else
- goto cleanup;
- if (!NT_SUCCESS(Status))
- goto cleanup;
-
- Status = ZwEnumerateValueKey(ChildKey3,
- ChildKeyIndex3,
- KeyValueBasicInformation,
- NULL,
- 0,
- &RequiredLength);
- if (Status == STATUS_BUFFER_TOO_SMALL)
- {
- KeyNameInformationLength = RequiredLength;
- KeyNameInformation = ExAllocatePool(PagedPool, KeyNameInformationLength + sizeof(WCHAR));
- if (!KeyNameInformation)
- {
- Status = STATUS_INSUFFICIENT_RESOURCES;
- goto cleanup;
- }
-
- Status = ZwEnumerateValueKey(ChildKey3,
- ChildKeyIndex3,
- KeyValueBasicInformation,
- KeyNameInformation,
- KeyNameInformationLength,
- &RequiredLength);
- }
- else
- goto cleanup;
-
- ChildKeyIndex3++;
-
- if (!NT_SUCCESS(Status))
- goto cleanup;
-
- KeyNameInformation->Name[KeyNameInformation->NameLength / sizeof(WCHAR)] = UNICODE_NULL;
-
- /* Skip translated entries */
- if (wcsstr(KeyNameInformation->Name, L".Translated"))
- {
- ExFreePool(KeyNameInformation);
- continue;
- }
-
- ExFreePool(KeyNameInformation);
-
- if (IopCheckForResourceConflict(ResourceList,
- (PCM_RESOURCE_LIST)KeyValueInformation->Data,
- Silent,
- ConflictingDescriptor))
- {
- ExFreePool(KeyValueInformation);
- Status = STATUS_CONFLICTING_ADDRESSES;
- goto cleanup;
- }
-
- ExFreePool(KeyValueInformation);
- }
- }
- }
-
-cleanup:
- if (ResourceMapKey != INVALID_HANDLE_VALUE)
- ZwClose(ResourceMapKey);
- if (ChildKey2 != INVALID_HANDLE_VALUE)
- ZwClose(ChildKey2);
- if (ChildKey3 != INVALID_HANDLE_VALUE)
- ZwClose(ChildKey3);
-
- if (Status == STATUS_NO_MORE_ENTRIES)
- Status = STATUS_SUCCESS;
-
- return Status;
-}
-
-BOOLEAN
-IopCheckDescriptorForConflict(PCM_PARTIAL_RESOURCE_DESCRIPTOR CmDesc, OPTIONAL PCM_PARTIAL_RESOURCE_DESCRIPTOR ConflictingDescriptor)
-{
- CM_RESOURCE_LIST CmList;
- NTSTATUS Status;
-
- CmList.Count = 1;
- CmList.List[0].InterfaceType = InterfaceTypeUndefined;
- CmList.List[0].BusNumber = 0;
- CmList.List[0].PartialResourceList.Version = 1;
- CmList.List[0].PartialResourceList.Revision = 1;
- CmList.List[0].PartialResourceList.Count = 1;
- CmList.List[0].PartialResourceList.PartialDescriptors[0] = *CmDesc;
-
- Status = IopDetectResourceConflict(&CmList, TRUE, ConflictingDescriptor);
- if (Status == STATUS_CONFLICTING_ADDRESSES)
- return TRUE;
-
- return FALSE;
-}
-
-BOOLEAN
-IopFindBusNumberResource(
- IN PIO_RESOURCE_DESCRIPTOR IoDesc,
- OUT PCM_PARTIAL_RESOURCE_DESCRIPTOR CmDesc)
-{
- ULONG Start;
- CM_PARTIAL_RESOURCE_DESCRIPTOR ConflictingDesc;
-
- ASSERT(IoDesc->Type == CmDesc->Type);
- ASSERT(IoDesc->Type == CmResourceTypeBusNumber);
-
- for (Start = IoDesc->u.BusNumber.MinBusNumber;
- Start < IoDesc->u.BusNumber.MaxBusNumber;
- Start++)
- {
- CmDesc->u.BusNumber.Length = IoDesc->u.BusNumber.Length;
- CmDesc->u.BusNumber.Start = Start;
-
- if (IopCheckDescriptorForConflict(CmDesc, &ConflictingDesc))
- {
- Start += ConflictingDesc.u.BusNumber.Start + ConflictingDesc.u.BusNumber.Length;
- }
- else
- {
- return TRUE;
- }
- }
-
- return FALSE;
-}
-
-BOOLEAN
-IopFindMemoryResource(
- IN PIO_RESOURCE_DESCRIPTOR IoDesc,
- OUT PCM_PARTIAL_RESOURCE_DESCRIPTOR CmDesc)
-{
- ULONGLONG Start;
- CM_PARTIAL_RESOURCE_DESCRIPTOR ConflictingDesc;
-
- ASSERT(IoDesc->Type == CmDesc->Type);
- ASSERT(IoDesc->Type == CmResourceTypeMemory);
-
- for (Start = IoDesc->u.Memory.MinimumAddress.QuadPart;
- Start < IoDesc->u.Memory.MaximumAddress.QuadPart;
- Start++)
- {
- CmDesc->u.Memory.Length = IoDesc->u.Memory.Length;
- CmDesc->u.Memory.Start.QuadPart = Start;
-
- if (IopCheckDescriptorForConflict(CmDesc, &ConflictingDesc))
- {
- Start += ConflictingDesc.u.Memory.Start.QuadPart + ConflictingDesc.u.Memory.Length;
- }
- else
- {
- return TRUE;
- }
- }
-
- return FALSE;
-}
-
-BOOLEAN
-IopFindPortResource(
- IN PIO_RESOURCE_DESCRIPTOR IoDesc,
- OUT PCM_PARTIAL_RESOURCE_DESCRIPTOR CmDesc)
-{
- ULONGLONG Start;
- CM_PARTIAL_RESOURCE_DESCRIPTOR ConflictingDesc;
-
- ASSERT(IoDesc->Type == CmDesc->Type);
- ASSERT(IoDesc->Type == CmResourceTypePort);
-
- for (Start = IoDesc->u.Port.MinimumAddress.QuadPart;
- Start < IoDesc->u.Port.MaximumAddress.QuadPart;
- Start++)
- {
- CmDesc->u.Port.Length = IoDesc->u.Port.Length;
- CmDesc->u.Port.Start.QuadPart = Start;
-
- if (IopCheckDescriptorForConflict(CmDesc, &ConflictingDesc))
- {
- Start += ConflictingDesc.u.Port.Start.QuadPart + ConflictingDesc.u.Port.Length;
- }
- else
- {
- return TRUE;
- }
- }
-
- return FALSE;
-}
-
-BOOLEAN
-IopFindDmaResource(
- IN PIO_RESOURCE_DESCRIPTOR IoDesc,
- OUT PCM_PARTIAL_RESOURCE_DESCRIPTOR CmDesc)
-{
- ULONG Channel;
-
- ASSERT(IoDesc->Type == CmDesc->Type);
- ASSERT(IoDesc->Type == CmResourceTypeDma);
-
- for (Channel = IoDesc->u.Dma.MinimumChannel;
- Channel < IoDesc->u.Dma.MaximumChannel;
- Channel++)
- {
- CmDesc->u.Dma.Channel = Channel;
- CmDesc->u.Dma.Port = 0;
-
- if (!IopCheckDescriptorForConflict(CmDesc, NULL))
- return TRUE;
- }
-
- return FALSE;
-}
-
-BOOLEAN
-IopFindInterruptResource(
- IN PIO_RESOURCE_DESCRIPTOR IoDesc,
- OUT PCM_PARTIAL_RESOURCE_DESCRIPTOR CmDesc)
-{
- ULONG Vector;
-
- ASSERT(IoDesc->Type == CmDesc->Type);
- ASSERT(IoDesc->Type == CmResourceTypeInterrupt);
-
- for (Vector = IoDesc->u.Interrupt.MinimumVector;
- Vector < IoDesc->u.Interrupt.MaximumVector;
- Vector++)
- {
- CmDesc->u.Interrupt.Vector = Vector;
- CmDesc->u.Interrupt.Level = Vector;
- CmDesc->u.Interrupt.Affinity = (KAFFINITY)-1;
-
- if (!IopCheckDescriptorForConflict(CmDesc, NULL))
- return TRUE;
- }
-
- return FALSE;
-}
-
+ * This method can create nested trees, so parent of RegistryPath can
+ * be not existant, and will be created if needed.
+ */
NTSTATUS
-IopCreateResourceListFromRequirements(
- IN PIO_RESOURCE_REQUIREMENTS_LIST RequirementsList,
- OUT PCM_RESOURCE_LIST *ResourceList)
+NTAPI
+IopCreateDeviceKeyPath(IN PCUNICODE_STRING RegistryPath,
+ IN ULONG CreateOptions,
+ OUT PHANDLE Handle)
{
- ULONG i, ii, Size;
- PCM_PARTIAL_RESOURCE_DESCRIPTOR ResDesc;
-
- Size = FIELD_OFFSET(CM_RESOURCE_LIST, List);
- for (i = 0; i < RequirementsList->AlternativeLists; i++)
- {
- PIO_RESOURCE_LIST ResList = &RequirementsList->List[i];
- Size += FIELD_OFFSET(CM_FULL_RESOURCE_DESCRIPTOR, PartialResourceList.PartialDescriptors)
- + ResList->Count * sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR);
- }
-
- *ResourceList = ExAllocatePool(PagedPool, Size);
- if (!*ResourceList)
- return STATUS_INSUFFICIENT_RESOURCES;
-
- (*ResourceList)->Count = 1;
- (*ResourceList)->List[0].BusNumber = RequirementsList->BusNumber;
- (*ResourceList)->List[0].InterfaceType = RequirementsList->InterfaceType;
- (*ResourceList)->List[0].PartialResourceList.Version = 1;
- (*ResourceList)->List[0].PartialResourceList.Revision = 1;
- (*ResourceList)->List[0].PartialResourceList.Count = 0;
-
- ResDesc = &(*ResourceList)->List[0].PartialResourceList.PartialDescriptors[0];
+ UNICODE_STRING EnumU = RTL_CONSTANT_STRING(ENUM_ROOT);
+ HANDLE hParent = NULL, hKey;
+ OBJECT_ATTRIBUTES ObjectAttributes;
+ UNICODE_STRING KeyName;
+ LPCWSTR Current, Last;
+ ULONG dwLength;
+ NTSTATUS Status;
- for (i = 0; i < RequirementsList->AlternativeLists; i++)
- {
- PIO_RESOURCE_LIST ResList = &RequirementsList->List[i];
- for (ii = 0; ii < ResList->Count; ii++)
- {
- PIO_RESOURCE_DESCRIPTOR ReqDesc = &ResList->Descriptors[ii];
+ /* Assume failure */
+ *Handle = NULL;
- /* FIXME: Handle alternate ranges */
- if (ReqDesc->Option == IO_RESOURCE_ALTERNATIVE)
- continue;
+ /* Open root key for device instances */
+ Status = IopOpenRegistryKeyEx(&hParent, NULL, &EnumU, KEY_CREATE_SUB_KEY);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("ZwOpenKey('%wZ') failed with status 0x%08lx\n", &EnumU, Status);
+ return Status;
+ }
- ResDesc->Type = ReqDesc->Type;
- ResDesc->Flags = ReqDesc->Flags;
- ResDesc->ShareDisposition = ReqDesc->ShareDisposition;
+ Current = KeyName.Buffer = RegistryPath->Buffer;
+ Last = &RegistryPath->Buffer[RegistryPath->Length / sizeof(WCHAR)];
- switch (ReqDesc->Type)
- {
- case CmResourceTypeInterrupt:
- if (!IopFindInterruptResource(ReqDesc, ResDesc))
- {
- DPRINT1("Failed to find an available interrupt resource (0x%x to 0x%x)\n",
- ReqDesc->u.Interrupt.MinimumVector, ReqDesc->u.Interrupt.MaximumVector);
-
- if (ReqDesc->Option == 0)
- {
- ExFreePool(*ResourceList);
- return STATUS_CONFLICTING_ADDRESSES;
- }
- }
- break;
+ /* Go up to the end of the string */
+ while (Current <= Last)
+ {
+ if (Current != Last && *Current != '\\')
+ {
+ /* Not the end of the string and not a separator */
+ Current++;
+ continue;
+ }
- case CmResourceTypePort:
- if (!IopFindPortResource(ReqDesc, ResDesc))
- {
- DPRINT1("Failed to find an available port resource (0x%x to 0x%x length: 0x%x)\n",
- ReqDesc->u.Port.MinimumAddress.QuadPart, ReqDesc->u.Port.MaximumAddress.QuadPart,
- ReqDesc->u.Port.Length);
-
- if (ReqDesc->Option == 0)
- {
- ExFreePool(*ResourceList);
- return STATUS_CONFLICTING_ADDRESSES;
- }
- }
- break;
+ /* Prepare relative key name */
+ dwLength = (ULONG_PTR)Current - (ULONG_PTR)KeyName.Buffer;
+ KeyName.MaximumLength = KeyName.Length = dwLength;
+ DPRINT("Create '%wZ'\n", &KeyName);
- case CmResourceTypeMemory:
- if (!IopFindMemoryResource(ReqDesc, ResDesc))
- {
- DPRINT1("Failed to find an available memory resource (0x%x to 0x%x length: 0x%x)\n",
- ReqDesc->u.Memory.MinimumAddress.QuadPart, ReqDesc->u.Memory.MaximumAddress.QuadPart,
- ReqDesc->u.Memory.Length);
-
- if (ReqDesc->Option == 0)
- {
- ExFreePool(*ResourceList);
- return STATUS_CONFLICTING_ADDRESSES;
- }
- }
- break;
+ /* Open key */
+ InitializeObjectAttributes(&ObjectAttributes,
+ &KeyName,
+ OBJ_CASE_INSENSITIVE,
+ hParent,
+ NULL);
+ Status = ZwCreateKey(&hKey,
+ Current == Last ? KEY_ALL_ACCESS : KEY_CREATE_SUB_KEY,
+ &ObjectAttributes,
+ 0,
+ NULL,
+ CreateOptions,
+ NULL);
- case CmResourceTypeBusNumber:
- if (!IopFindBusNumberResource(ReqDesc, ResDesc))
- {
- DPRINT1("Failed to find an available bus number resource (0x%x to 0x%x length: 0x%x)\n",
- ReqDesc->u.BusNumber.MinBusNumber, ReqDesc->u.BusNumber.MaxBusNumber,
- ReqDesc->u.BusNumber.Length);
-
- if (ReqDesc->Option == 0)
- {
- ExFreePool(*ResourceList);
- return STATUS_CONFLICTING_ADDRESSES;
- }
- }
- break;
+ /* Close parent key handle, we don't need it anymore */
+ if (hParent)
+ ZwClose(hParent);
- case CmResourceTypeDma:
- if (!IopFindDmaResource(ReqDesc, ResDesc))
- {
- DPRINT1("Failed to find an available dma resource (0x%x to 0x%x)\n",
- ReqDesc->u.Dma.MinimumChannel, ReqDesc->u.Dma.MaximumChannel);
-
- if (ReqDesc->Option == 0)
- {
- ExFreePool(*ResourceList);
- return STATUS_CONFLICTING_ADDRESSES;
- }
- }
- break;
+ /* Key opening/creating failed? */
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("ZwCreateKey('%wZ') failed with status 0x%08lx\n", &KeyName, Status);
+ return Status;
+ }
- default:
- DPRINT1("Unsupported resource type: %x\n", ReqDesc->Type);
- break;
- }
+ /* Check if it is the end of the string */
+ if (Current == Last)
+ {
+ /* Yes, return success */
+ *Handle = hKey;
+ return STATUS_SUCCESS;
+ }
- (*ResourceList)->List[0].PartialResourceList.Count++;
- ResDesc++;
- }
- }
+ /* Start with this new parent key */
+ hParent = hKey;
+ Current++;
+ KeyName.Buffer = (LPWSTR)Current;
+ }
- return STATUS_SUCCESS;
+ return STATUS_UNSUCCESSFUL;
}
NTSTATUS
-IopAssignDeviceResources(
- IN PDEVICE_NODE DeviceNode,
- OUT ULONG *pRequiredSize)
+IopSetDeviceInstanceData(HANDLE InstanceKey,
+ PDEVICE_NODE DeviceNode)
{
- PCM_PARTIAL_RESOURCE_LIST pPartialResourceList;
- ULONG Size;
- ULONG i;
- ULONG j;
+ OBJECT_ATTRIBUTES ObjectAttributes;
+ UNICODE_STRING KeyName;
+ HANDLE LogConfKey;
+ ULONG ResCount;
+ ULONG ResultLength;
NTSTATUS Status;
+ HANDLE ControlHandle;
- if (!DeviceNode->BootResources && !DeviceNode->ResourceRequirements)
- {
- /* No resource needed for this device */
- DeviceNode->ResourceList = NULL;
- *pRequiredSize = 0;
- return STATUS_SUCCESS;
- }
-
- /* Fill DeviceNode->ResourceList
- * FIXME: the PnP arbiter should go there!
- * Actually, use the BootResources if provided, else the resource requirements
- */
+ DPRINT("IopSetDeviceInstanceData() called\n");
- if (DeviceNode->BootResources)
+ /* Create the 'LogConf' key */
+ RtlInitUnicodeString(&KeyName, L"LogConf");
+ InitializeObjectAttributes(&ObjectAttributes,
+ &KeyName,
+ OBJ_CASE_INSENSITIVE,
+ InstanceKey,
+ NULL);
+ Status = ZwCreateKey(&LogConfKey,
+ KEY_ALL_ACCESS,
+ &ObjectAttributes,
+ 0,
+ NULL,
+ 0,
+ NULL);
+ if (NT_SUCCESS(Status))
{
- /* Browse the boot resources to know if we have some custom structures */
- Size = FIELD_OFFSET(CM_RESOURCE_LIST, List);
- for (i = 0; i < DeviceNode->BootResources->Count; i++)
+ /* Set 'BootConfig' value */
+ if (DeviceNode->BootResources != NULL)
{
- pPartialResourceList = &DeviceNode->BootResources->List[i].PartialResourceList;
- Size += FIELD_OFFSET(CM_FULL_RESOURCE_DESCRIPTOR, PartialResourceList.PartialDescriptors)
- + pPartialResourceList->Count * sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR);
- for (j = 0; j < pPartialResourceList->Count; j++)
+ ResCount = DeviceNode->BootResources->Count;
+ if (ResCount != 0)
{
- if (pPartialResourceList->PartialDescriptors[j].Type == CmResourceTypeDeviceSpecific)
- Size += pPartialResourceList->PartialDescriptors[j].u.DeviceSpecificData.DataSize;
+ RtlInitUnicodeString(&KeyName, L"BootConfig");
+ Status = ZwSetValueKey(LogConfKey,
+ &KeyName,
+ 0,
+ REG_RESOURCE_LIST,
+ DeviceNode->BootResources,
+ PnpDetermineResourceListSize(DeviceNode->BootResources));
}
}
- DeviceNode->ResourceList = ExAllocatePool(PagedPool, Size);
- if (!DeviceNode->ResourceList)
- {
- Status = STATUS_NO_MEMORY;
- goto ByeBye;
- }
- RtlCopyMemory(DeviceNode->ResourceList, DeviceNode->BootResources, Size);
-
- Status = IopDetectResourceConflict(DeviceNode->ResourceList, FALSE, NULL);
- if (NT_SUCCESS(Status) || !DeviceNode->ResourceRequirements)
- {
- if (!NT_SUCCESS(Status) && !DeviceNode->ResourceRequirements)
- {
- DPRINT1("Using conflicting boot resources because no requirements were supplied!\n");
- }
-
- *pRequiredSize = Size;
- return STATUS_SUCCESS;
- }
- else
+ /* Set 'BasicConfigVector' value */
+ if (DeviceNode->ResourceRequirements != NULL &&
+ DeviceNode->ResourceRequirements->ListSize != 0)
{
- DPRINT1("Boot resources for %wZ cause a resource conflict!\n", &DeviceNode->InstancePath);
- ExFreePool(DeviceNode->ResourceList);
+ RtlInitUnicodeString(&KeyName, L"BasicConfigVector");
+ Status = ZwSetValueKey(LogConfKey,
+ &KeyName,
+ 0,
+ REG_RESOURCE_REQUIREMENTS_LIST,
+ DeviceNode->ResourceRequirements,
+ DeviceNode->ResourceRequirements->ListSize);
}
- }
-
- Status = IopCreateResourceListFromRequirements(DeviceNode->ResourceRequirements,
- &DeviceNode->ResourceList);
- if (!NT_SUCCESS(Status))
- goto ByeBye;
-
- Size = FIELD_OFFSET(CM_RESOURCE_LIST, List);
- for (i = 0; i < DeviceNode->ResourceList->Count; i++)
- {
- pPartialResourceList = &DeviceNode->ResourceList->List[i].PartialResourceList;
- Size += FIELD_OFFSET(CM_FULL_RESOURCE_DESCRIPTOR, PartialResourceList.PartialDescriptors)
- + pPartialResourceList->Count * sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR);
- }
-
- Status = IopDetectResourceConflict(DeviceNode->ResourceList, FALSE, NULL);
- if (!NT_SUCCESS(Status))
- goto ByeBye;
-
- *pRequiredSize = Size;
- return STATUS_SUCCESS;
-ByeBye:
- if (DeviceNode->ResourceList)
- {
- ExFreePool(DeviceNode->ResourceList);
- DeviceNode->ResourceList = NULL;
+ ZwClose(LogConfKey);
}
- *pRequiredSize = 0;
- return Status;
-}
-
-
-NTSTATUS
-IopTranslateDeviceResources(
- IN PDEVICE_NODE DeviceNode,
- IN ULONG RequiredSize)
-{
- PCM_PARTIAL_RESOURCE_LIST pPartialResourceList;
- PCM_PARTIAL_RESOURCE_DESCRIPTOR DescriptorRaw, DescriptorTranslated;
- ULONG i, j;
- NTSTATUS Status;
- if (!DeviceNode->ResourceList)
- {
- DeviceNode->ResourceListTranslated = NULL;
- return STATUS_SUCCESS;
- }
+ /* Set the 'ConfigFlags' value */
+ RtlInitUnicodeString(&KeyName, L"ConfigFlags");
+ Status = ZwQueryValueKey(InstanceKey,
+ &KeyName,
+ KeyValueBasicInformation,
+ NULL,
+ 0,
+ &ResultLength);
+ if (Status == STATUS_OBJECT_NAME_NOT_FOUND)
+ {
+ /* Write the default value */
+ ULONG DefaultConfigFlags = 0;
+ Status = ZwSetValueKey(InstanceKey,
+ &KeyName,
+ 0,
+ REG_DWORD,
+ &DefaultConfigFlags,
+ sizeof(DefaultConfigFlags));
+ }
- /* That's easy to translate a resource list. Just copy the
- * untranslated one and change few fields in the copy
- */
- DeviceNode->ResourceListTranslated = ExAllocatePool(PagedPool, RequiredSize);
- if (!DeviceNode->ResourceListTranslated)
- {
- Status =STATUS_NO_MEMORY;
- goto cleanup;
- }
- RtlCopyMemory(DeviceNode->ResourceListTranslated, DeviceNode->ResourceList, RequiredSize);
+ /* Create the 'Control' key */
+ RtlInitUnicodeString(&KeyName, L"Control");
+ InitializeObjectAttributes(&ObjectAttributes,
+ &KeyName,
+ OBJ_CASE_INSENSITIVE,
+ InstanceKey,
+ NULL);
+ Status = ZwCreateKey(&ControlHandle, 0, &ObjectAttributes, 0, NULL, REG_OPTION_VOLATILE, NULL);
- for (i = 0; i < DeviceNode->ResourceList->Count; i++)
- {
- pPartialResourceList = &DeviceNode->ResourceList->List[i].PartialResourceList;
- for (j = 0; j < pPartialResourceList->Count; j++)
- {
- DescriptorRaw = &pPartialResourceList->PartialDescriptors[j];
- DescriptorTranslated = &DeviceNode->ResourceListTranslated->List[i].PartialResourceList.PartialDescriptors[j];
- switch (DescriptorRaw->Type)
- {
- case CmResourceTypePort:
- {
- ULONG AddressSpace = 1; /* IO space */
- if (!HalTranslateBusAddress(
- DeviceNode->ResourceList->List[i].InterfaceType,
- DeviceNode->ResourceList->List[i].BusNumber,
- DescriptorRaw->u.Port.Start,
- &AddressSpace,
- &DescriptorTranslated->u.Port.Start))
- {
- Status = STATUS_UNSUCCESSFUL;
- goto cleanup;
- }
- break;
- }
- case CmResourceTypeInterrupt:
- {
- DescriptorTranslated->u.Interrupt.Vector = HalGetInterruptVector(
- DeviceNode->ResourceList->List[i].InterfaceType,
- DeviceNode->ResourceList->List[i].BusNumber,
- DescriptorRaw->u.Interrupt.Level,
- DescriptorRaw->u.Interrupt.Vector,
- (PKIRQL)&DescriptorTranslated->u.Interrupt.Level,
- &DescriptorRaw->u.Interrupt.Affinity);
- break;
- }
- case CmResourceTypeMemory:
- {
- ULONG AddressSpace = 0; /* Memory space */
- if (!HalTranslateBusAddress(
- DeviceNode->ResourceList->List[i].InterfaceType,
- DeviceNode->ResourceList->List[i].BusNumber,
- DescriptorRaw->u.Memory.Start,
- &AddressSpace,
- &DescriptorTranslated->u.Memory.Start))
- {
- Status = STATUS_UNSUCCESSFUL;
- goto cleanup;
- }
- }
+ if (NT_SUCCESS(Status))
+ ZwClose(ControlHandle);
- case CmResourceTypeDma:
- case CmResourceTypeBusNumber:
- case CmResourceTypeDeviceSpecific:
- /* Nothing to do */
- break;
- default:
- DPRINT1("Unknown resource descriptor type 0x%x\n", DescriptorRaw->Type);
- Status = STATUS_NOT_IMPLEMENTED;
- goto cleanup;
- }
- }
- }
- return STATUS_SUCCESS;
+ DPRINT("IopSetDeviceInstanceData() done\n");
-cleanup:
- /* Yes! Also delete ResourceList because ResourceList and
- * ResourceListTranslated should be a pair! */
- ExFreePool(DeviceNode->ResourceList);
- DeviceNode->ResourceList = NULL;
- if (DeviceNode->ResourceListTranslated)
- {
- ExFreePool(DeviceNode->ResourceListTranslated);
- DeviceNode->ResourceList = NULL;
- }
- return Status;
+ return Status;
}
-
/*
* IopGetParentIdPrefix
*
/*
* Create registry key for the instance id, if it doesn't exist yet
*/
- Status = IopCreateDeviceKeyPath(&DeviceNode->InstancePath, &InstanceKey);
+ Status = IopCreateDeviceKeyPath(&DeviceNode->InstancePath, 0, &InstanceKey);
if (!NT_SUCCESS(Status))
{
DPRINT1("Failed to create the instance key! (Status %lx)\n", Status);
{
DeviceNode->BootResources =
(PCM_RESOURCE_LIST)IoStatusBlock.Information;
- DeviceNode->Flags |= DNF_HAS_BOOT_CONFIG;
+ IopDeviceNodeSetFlag(DeviceNode, DNF_HAS_BOOT_CONFIG);
}
else
{
{
DeviceNode->ResourceRequirements =
(PIO_RESOURCE_REQUIREMENTS_LIST)IoStatusBlock.Information;
- if (IoStatusBlock.Information)
- IopDeviceNodeSetFlag(DeviceNode, DNF_RESOURCE_REPORTED);
- else
- IopDeviceNodeSetFlag(DeviceNode, DNF_NO_RESOURCE_REQUIRED);
}
else
{
DeviceNode->ResourceRequirements = NULL;
}
-
if (InstanceKey != NULL)
{
IopSetDeviceInstanceData(InstanceKey, DeviceNode);
DPRINT1("%wZ is using parent bus driver (%wZ)\n", &DeviceNode->InstancePath, &ParentDeviceNode->ServiceName);
DeviceNode->ServiceName.Length = 0;
- DeviceNode->ServiceName.MaximumLength = ParentDeviceNode->ServiceName.MaximumLength;
- DeviceNode->ServiceName.Buffer = ExAllocatePool(PagedPool, DeviceNode->ServiceName.MaximumLength);
- if (!DeviceNode->ServiceName.Buffer)
- return STATUS_SUCCESS;
-
- RtlCopyUnicodeString(&DeviceNode->ServiceName, &ParentDeviceNode->ServiceName);
-
- IopDeviceNodeSetFlag(DeviceNode, DNF_LEGACY_DRIVER);
+ DeviceNode->ServiceName.MaximumLength = 0;
+ DeviceNode->ServiceName.Buffer = NULL;
}
else if (ClassGUID.Length != 0)
{
DPRINT("Stop\n");
return STATUS_UNSUCCESSFUL;
}
-#endif
-
- if (!IopDeviceNodeHasFlag(DeviceNode, DNF_DISABLED) &&
- !IopDeviceNodeHasFlag(DeviceNode, DNF_ADDED) &&
- !IopDeviceNodeHasFlag(DeviceNode, DNF_STARTED))
+#endif
+ if (IopDeviceNodeHasFlag(DeviceNode, DNF_STARTED) ||
+ IopDeviceNodeHasFlag(DeviceNode, DNF_ADDED) ||
+ IopDeviceNodeHasFlag(DeviceNode, DNF_DISABLED))
+ return STATUS_SUCCESS;
+
+ if (DeviceNode->ServiceName.Buffer == NULL)
+ {
+ /* We don't need to worry about loading the driver because we're
+ * being driven in raw mode so our parent must be loaded to get here */
+ Status = IopStartDevice(DeviceNode);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("IopStartDevice(%wZ) failed with status 0x%08x\n",
+ &DeviceNode->InstancePath, Status);
+ }
+ }
+ else
{
PLDR_DATA_TABLE_ENTRY ModuleObject;
PDRIVER_OBJECT DriverObject;
/* Driver is loaded and initialized at this point */
if (NT_SUCCESS(Status))
{
- /* Attach lower level filter drivers. */
- IopAttachFilterDrivers(DeviceNode, TRUE);
- /* Initialize the function driver for the device node */
- Status = IopInitializeDevice(DeviceNode, DriverObject);
-
- if (NT_SUCCESS(Status))
- {
- /* Attach upper level filter drivers. */
- IopAttachFilterDrivers(DeviceNode, FALSE);
- IopDeviceNodeSetFlag(DeviceNode, DNF_STARTED);
-
- Status = IopStartDevice(DeviceNode);
- }
- else
- {
- DPRINT1("IopInitializeDevice(%wZ) failed with status 0x%08x\n",
- &DeviceNode->InstancePath, Status);
- }
+ /* Initialize the device, including all filters */
+ Status = PipCallDriverAddDevice(DeviceNode, FALSE, DriverObject);
}
else
{
}
}
}
- else
- {
- DPRINT("Device %wZ is disabled or already initialized\n",
- &DeviceNode->InstancePath);
- }
return STATUS_SUCCESS;
}
BootResourcesLength = pValueInformation->DataLength;
else
BootResourcesLength = ParentBootResourcesLength
- + pValueInformation->DataLength
+ + pValueInformation->DataLength
- Header;
BootResources = ExAllocatePool(PagedPool, BootResourcesLength);
if (!BootResources)
#endif
}
-static NTSTATUS INIT_FUNCTION
+NTSTATUS
+NTAPI
IopUpdateRootKey(VOID)
{
UNICODE_STRING EnumU = RTL_CONSTANT_STRING(L"\\Registry\\Machine\\SYSTEM\\CurrentControlSet\\Enum");
return Status;
}
+NTSTATUS
+NTAPI
+IopCreateRegistryKeyEx(OUT PHANDLE Handle,
+ IN HANDLE RootHandle OPTIONAL,
+ IN PUNICODE_STRING KeyName,
+ IN ACCESS_MASK DesiredAccess,
+ IN ULONG CreateOptions,
+ OUT PULONG Disposition OPTIONAL)
+{
+ OBJECT_ATTRIBUTES ObjectAttributes;
+ ULONG KeyDisposition, RootHandleIndex = 0, i = 1, NestedCloseLevel = 0, Length;
+ HANDLE HandleArray[2];
+ BOOLEAN Recursing = TRUE;
+ PWCHAR pp, p, p1;
+ UNICODE_STRING KeyString;
+ NTSTATUS Status = STATUS_SUCCESS;
+ PAGED_CODE();
+
+ /* P1 is start, pp is end */
+ p1 = KeyName->Buffer;
+ pp = (PVOID)((ULONG_PTR)p1 + KeyName->Length);
+
+ /* Create the target key */
+ InitializeObjectAttributes(&ObjectAttributes,
+ KeyName,
+ OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
+ RootHandle,
+ NULL);
+ Status = ZwCreateKey(&HandleArray[i],
+ DesiredAccess,
+ &ObjectAttributes,
+ 0,
+ NULL,
+ CreateOptions,
+ &KeyDisposition);
+
+ /* Now we check if this failed */
+ if ((Status == STATUS_OBJECT_NAME_NOT_FOUND) && (RootHandle))
+ {
+ /* Target key failed, so we'll need to create its parent. Setup array */
+ HandleArray[0] = NULL;
+ HandleArray[1] = RootHandle;
+
+ /* Keep recursing for each missing parent */
+ while (Recursing)
+ {
+ /* And if we're deep enough, close the last handle */
+ if (NestedCloseLevel > 1) ZwClose(HandleArray[RootHandleIndex]);
+
+ /* We're setup to ping-pong between the two handle array entries */
+ RootHandleIndex = i;
+ i = (i + 1) & 1;
+
+ /* Clear the one we're attempting to open now */
+ HandleArray[i] = NULL;
+
+ /* Process the parent key name */
+ for (p = p1; ((p < pp) && (*p != OBJ_NAME_PATH_SEPARATOR)); p++);
+ Length = (p - p1) * sizeof(WCHAR);
+
+ /* Is there a parent name? */
+ if (Length)
+ {
+ /* Build the unicode string for it */
+ KeyString.Buffer = p1;
+ KeyString.Length = KeyString.MaximumLength = Length;
+
+ /* Now try opening the parent */
+ InitializeObjectAttributes(&ObjectAttributes,
+ &KeyString,
+ OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
+ HandleArray[RootHandleIndex],
+ NULL);
+ Status = ZwCreateKey(&HandleArray[i],
+ DesiredAccess,
+ &ObjectAttributes,
+ 0,
+ NULL,
+ CreateOptions,
+ &KeyDisposition);
+ if (NT_SUCCESS(Status))
+ {
+ /* It worked, we have one more handle */
+ NestedCloseLevel++;
+ }
+ else
+ {
+ /* Parent key creation failed, abandon loop */
+ Recursing = FALSE;
+ continue;
+ }
+ }
+ else
+ {
+ /* We don't have a parent name, probably corrupted key name */
+ Status = STATUS_INVALID_PARAMETER;
+ Recursing = FALSE;
+ continue;
+ }
+
+ /* Now see if there's more parents to create */
+ p1 = p + 1;
+ if ((p == pp) || (p1 == pp))
+ {
+ /* We're done, hopefully successfully, so stop */
+ Recursing = FALSE;
+ }
+ }
+
+ /* Outer loop check for handle nesting that requires closing the top handle */
+ if (NestedCloseLevel > 1) ZwClose(HandleArray[RootHandleIndex]);
+ }
+
+ /* Check if we broke out of the loop due to success */
+ if (NT_SUCCESS(Status))
+ {
+ /* Return the target handle (we closed all the parent ones) and disposition */
+ *Handle = HandleArray[i];
+ if (Disposition) *Disposition = KeyDisposition;
+ }
+
+ /* Return the success state */
+ return Status;
+}
+
NTSTATUS
NTAPI
IopGetRegistryValue(IN HANDLE Handle,
return STATUS_SUCCESS;
}
-static NTSTATUS INIT_FUNCTION
-NTAPI
-PnpDriverInitializeEmpty(IN struct _DRIVER_OBJECT *DriverObject, IN PUNICODE_STRING RegistryPath)
-{
- return STATUS_SUCCESS;
-}
-
-VOID INIT_FUNCTION
-PnpInit(VOID)
-{
- PDEVICE_OBJECT Pdo;
- NTSTATUS Status;
-
- DPRINT("PnpInit()\n");
-
- KeInitializeSpinLock(&IopDeviceTreeLock);
- ExInitializeFastMutex(&IopBusTypeGuidListLock);
-
- /* Initialize the Bus Type GUID List */
- IopBusTypeGuidList = ExAllocatePool(NonPagedPool, sizeof(IO_BUS_TYPE_GUID_LIST));
- if (!IopBusTypeGuidList) {
- DPRINT1("ExAllocatePool() failed\n");
- KeBugCheckEx(PHASE1_INITIALIZATION_FAILED, STATUS_NO_MEMORY, 0, 0, 0);
- }
-
- RtlZeroMemory(IopBusTypeGuidList, sizeof(IO_BUS_TYPE_GUID_LIST));
- ExInitializeFastMutex(&IopBusTypeGuidList->Lock);
-
- /* Initialize PnP-Event notification support */
- Status = IopInitPlugPlayEvents();
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("IopInitPlugPlayEvents() failed\n");
- KeBugCheckEx(PHASE1_INITIALIZATION_FAILED, Status, 0, 0, 0);
- }
-
- /*
- * Create root device node
- */
-
- Status = IopCreateDriver(NULL, PnpDriverInitializeEmpty, NULL, 0, 0, &IopRootDriverObject);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("IoCreateDriverObject() failed\n");
- KeBugCheckEx(PHASE1_INITIALIZATION_FAILED, Status, 0, 0, 0);
- }
-
- Status = IoCreateDevice(IopRootDriverObject, 0, NULL, FILE_DEVICE_CONTROLLER,
- 0, FALSE, &Pdo);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("IoCreateDevice() failed\n");
- KeBugCheckEx(PHASE1_INITIALIZATION_FAILED, Status, 0, 0, 0);
- }
-
- Status = IopCreateDeviceNode(NULL, Pdo, NULL, &IopRootDeviceNode);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("Insufficient resources\n");
- KeBugCheckEx(PHASE1_INITIALIZATION_FAILED, Status, 0, 0, 0);
- }
-
- if (!RtlCreateUnicodeString(&IopRootDeviceNode->InstancePath,
- L"HTREE\\ROOT\\0"))
- {
- DPRINT1("Failed to create the instance path!\n");
- KeBugCheckEx(PHASE1_INITIALIZATION_FAILED, STATUS_NO_MEMORY, 0, 0, 0);
- }
-
- /* Report the device to the user-mode pnp manager */
- IopQueueTargetDeviceEvent(&GUID_DEVICE_ARRIVAL,
- &IopRootDeviceNode->InstancePath);
-
- IopRootDeviceNode->PhysicalDeviceObject->Flags |= DO_BUS_ENUMERATED_DEVICE;
- PnpRootDriverEntry(IopRootDriverObject, NULL);
- IopRootDeviceNode->PhysicalDeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
- IopRootDriverObject->DriverExtension->AddDevice(
- IopRootDriverObject,
- IopRootDeviceNode->PhysicalDeviceObject);
-
- /* Move information about devices detected by Freeloader to SYSTEM\CurrentControlSet\Root\ */
- Status = IopUpdateRootKey();
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("IopUpdateRootKey() failed\n");
- KeBugCheckEx(PHASE1_INITIALIZATION_FAILED, Status, 0, 0, 0);
- }
-}
-
RTL_GENERIC_COMPARE_RESULTS
NTAPI
PiCompareInstancePath(IN PRTL_AVL_TABLE Table,
}
}
+LONG IopNumberDeviceNodes;
+
+PDEVICE_NODE
+NTAPI
+PipAllocateDeviceNode(IN PDEVICE_OBJECT PhysicalDeviceObject)
+{
+ PDEVICE_NODE DeviceNode;
+ PAGED_CODE();
+
+ /* Allocate it */
+ DeviceNode = ExAllocatePoolWithTag(NonPagedPool, sizeof(DEVICE_NODE), 'donD');
+ if (!DeviceNode) return DeviceNode;
+
+ /* Statistics */
+ InterlockedIncrement(&IopNumberDeviceNodes);
+
+ /* Set it up */
+ RtlZeroMemory(DeviceNode, sizeof(DEVICE_NODE));
+ DeviceNode->InterfaceType = InterfaceTypeUndefined;
+ DeviceNode->BusNumber = -1;
+ DeviceNode->ChildInterfaceType = InterfaceTypeUndefined;
+ DeviceNode->ChildBusNumber = -1;
+ DeviceNode->ChildBusTypeIndex = -1;
+// KeInitializeEvent(&DeviceNode->EnumerationMutex, SynchronizationEvent, TRUE);
+ InitializeListHead(&DeviceNode->DeviceArbiterList);
+ InitializeListHead(&DeviceNode->DeviceTranslatorList);
+ InitializeListHead(&DeviceNode->TargetDeviceNotify);
+ InitializeListHead(&DeviceNode->DockInfo.ListEntry);
+ InitializeListHead(&DeviceNode->PendedSetInterfaceState);
+
+ /* Check if there is a PDO */
+ if (PhysicalDeviceObject)
+ {
+ /* Link it and remove the init flag */
+ DeviceNode->PhysicalDeviceObject = PhysicalDeviceObject;
+ ((PEXTENDED_DEVOBJ_EXTENSION)PhysicalDeviceObject->DeviceObjectExtension)->DeviceNode = DeviceNode;
+ PhysicalDeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
+ }
+
+ /* Return the node */
+ return DeviceNode;
+}
+
/* PUBLIC FUNCTIONS **********************************************************/
-/*
- * @implemented
- */
NTSTATUS
NTAPI
-IoGetDeviceProperty(IN PDEVICE_OBJECT DeviceObject,
- IN DEVICE_REGISTRY_PROPERTY DeviceProperty,
- IN ULONG BufferLength,
- OUT PVOID PropertyBuffer,
- OUT PULONG ResultLength)
+PnpBusTypeGuidGet(IN USHORT Index,
+ IN LPGUID BusTypeGuid)
{
- PDEVICE_NODE DeviceNode = IopGetDeviceNode(DeviceObject);
- DEVICE_CAPABILITIES DeviceCaps;
- ULONG Length;
- PVOID Data = NULL;
- PWSTR Ptr;
- NTSTATUS Status;
- POBJECT_NAME_INFORMATION ObjectNameInfo = NULL;
- ULONG RequiredLength, ObjectNameInfoLength;
+ NTSTATUS Status = STATUS_SUCCESS;
- DPRINT("IoGetDeviceProperty(0x%p %d)\n", DeviceObject, DeviceProperty);
+ /* Acquire the lock */
+ ExAcquireFastMutex(&PnpBusTypeGuidList->Lock);
+
+ /* Validate size */
+ if (Index < PnpBusTypeGuidList->GuidCount)
+ {
+ /* Copy the data */
+ RtlCopyMemory(BusTypeGuid, &PnpBusTypeGuidList->Guids[Index], sizeof(GUID));
+ }
+ else
+ {
+ /* Failure path */
+ Status = STATUS_OBJECT_NAME_NOT_FOUND;
+ }
+
+ /* Release lock and return status */
+ ExReleaseFastMutex(&PnpBusTypeGuidList->Lock);
+ return Index;
+}
- *ResultLength = 0;
+NTSTATUS
+NTAPI
+PpIrpQueryCapabilities(IN PDEVICE_OBJECT DeviceObject,
+ OUT PDEVICE_CAPABILITIES DeviceCaps)
+{
+ PAGED_CODE();
+ PVOID Dummy;
+ IO_STACK_LOCATION Stack;
+
+ /* Set up the Header */
+ RtlZeroMemory(DeviceCaps, sizeof(DEVICE_CAPABILITIES));
+ DeviceCaps->Size = sizeof(DEVICE_CAPABILITIES);
+ DeviceCaps->Version = 1;
+ DeviceCaps->Address = -1;
+ DeviceCaps->UINumber = -1;
+
+ /* Set up the Stack */
+ RtlZeroMemory(&Stack, sizeof(IO_STACK_LOCATION));
+ Stack.MajorFunction = IRP_MJ_PNP;
+ Stack.MinorFunction = IRP_MN_QUERY_CAPABILITIES;
+ Stack.Parameters.DeviceCapabilities.Capabilities = DeviceCaps;
+
+ /* Send the IRP */
+ return IopSynchronousCall(DeviceObject, &Stack, &Dummy);
+}
- if (DeviceNode == NULL)
- return STATUS_INVALID_DEVICE_REQUEST;
+NTSTATUS
+NTAPI
+PnpDeviceObjectToDeviceInstance(IN PDEVICE_OBJECT DeviceObject,
+ IN PHANDLE DeviceInstanceHandle,
+ IN ACCESS_MASK DesiredAccess)
+{
+ NTSTATUS Status;
+ HANDLE KeyHandle;
+ PDEVICE_NODE DeviceNode;
+ UNICODE_STRING KeyName = RTL_CONSTANT_STRING(L"\\REGISTRY\\MACHINE\\SYSTEM\\CURRENTCONTROLSET\\ENUM");
+ PAGED_CODE();
+
+ /* Open the enum key */
+ Status = IopOpenRegistryKeyEx(&KeyHandle,
+ NULL,
+ &KeyName,
+ KEY_READ);
+ if (!NT_SUCCESS(Status)) return Status;
+
+ /* Make sure we have an instance path */
+ DeviceNode = IopGetDeviceNode(DeviceObject);
+ if ((DeviceNode) && (DeviceNode->InstancePath.Length))
+ {
+ /* Get the instance key */
+ Status = IopOpenRegistryKeyEx(DeviceInstanceHandle,
+ KeyHandle,
+ &DeviceNode->InstancePath,
+ DesiredAccess);
+ }
+ else
+ {
+ /* Fail */
+ Status = STATUS_INVALID_DEVICE_REQUEST;
+ }
+
+ /* Close the handle and return status */
+ ZwClose(KeyHandle);
+ return Status;
+}
- switch (DeviceProperty)
+ULONG
+NTAPI
+PnpDetermineResourceListSize(IN PCM_RESOURCE_LIST ResourceList)
+{
+ ULONG FinalSize, PartialSize, EntrySize, i, j;
+ PCM_FULL_RESOURCE_DESCRIPTOR FullDescriptor;
+ PCM_PARTIAL_RESOURCE_DESCRIPTOR PartialDescriptor;
+
+ /* If we don't have one, that's easy */
+ if (!ResourceList) return 0;
+
+ /* Start with the minimum size possible */
+ FinalSize = FIELD_OFFSET(CM_RESOURCE_LIST, List);
+
+ /* Loop each full descriptor */
+ FullDescriptor = ResourceList->List;
+ for (i = 0; i < ResourceList->Count; i++)
{
- case DevicePropertyBusNumber:
- Length = sizeof(ULONG);
- Data = &DeviceNode->ChildBusNumber;
- break;
-
- /* Complete, untested */
- case DevicePropertyBusTypeGuid:
- /* Sanity check */
- if ((DeviceNode->ChildBusTypeIndex != 0xFFFF) &&
- (DeviceNode->ChildBusTypeIndex < IopBusTypeGuidList->GuidCount))
+ /* Start with the minimum size possible */
+ PartialSize = FIELD_OFFSET(CM_FULL_RESOURCE_DESCRIPTOR, PartialResourceList) +
+ FIELD_OFFSET(CM_PARTIAL_RESOURCE_LIST, PartialDescriptors);
+
+ /* Loop each partial descriptor */
+ PartialDescriptor = FullDescriptor->PartialResourceList.PartialDescriptors;
+ for (j = 0; j < FullDescriptor->PartialResourceList.Count; j++)
{
- /* Return the GUID */
- *ResultLength = sizeof(GUID);
-
- /* Check if the buffer given was large enough */
- if (BufferLength < *ResultLength)
+ /* Start with the minimum size possible */
+ EntrySize = sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR);
+
+ /* Check if there is extra data */
+ if (PartialDescriptor->Type == CmResourceTypeDeviceSpecific)
{
- return STATUS_BUFFER_TOO_SMALL;
+ /* Add that data */
+ EntrySize += PartialDescriptor->u.DeviceSpecificData.DataSize;
}
-
- /* Copy the GUID */
- RtlCopyMemory(PropertyBuffer,
- &(IopBusTypeGuidList->Guids[DeviceNode->ChildBusTypeIndex]),
- sizeof(GUID));
- return STATUS_SUCCESS;
+
+ /* The size of partial descriptors is bigger */
+ PartialSize += EntrySize;
+
+ /* Go to the next partial descriptor */
+ PartialDescriptor = (PVOID)((ULONG_PTR)PartialDescriptor + EntrySize);
}
- else
- {
- return STATUS_OBJECT_NAME_NOT_FOUND;
- }
- break;
+
+ /* The size of full descriptors is bigger */
+ FinalSize += PartialSize;
+
+ /* Go to the next full descriptor */
+ FullDescriptor = (PVOID)((ULONG_PTR)FullDescriptor + PartialSize);
+ }
+
+ /* Return the final size */
+ return FinalSize;
+}
- case DevicePropertyLegacyBusType:
- Length = sizeof(INTERFACE_TYPE);
- Data = &DeviceNode->ChildInterfaceType;
- break;
+NTSTATUS
+NTAPI
+PiGetDeviceRegistryProperty(IN PDEVICE_OBJECT DeviceObject,
+ IN ULONG ValueType,
+ IN PWSTR ValueName,
+ IN PWSTR KeyName,
+ OUT PVOID Buffer,
+ IN PULONG BufferLength)
+{
+ NTSTATUS Status;
+ HANDLE KeyHandle, SubHandle;
+ UNICODE_STRING KeyString;
+ PKEY_VALUE_FULL_INFORMATION KeyValueInfo = NULL;
+ ULONG Length;
+ PAGED_CODE();
- case DevicePropertyAddress:
- /* Query the device caps */
- Status = IopQueryDeviceCapabilities(DeviceNode, &DeviceCaps);
- if (NT_SUCCESS(Status) && (DeviceCaps.Address != MAXULONG))
+ /* Find the instance key */
+ Status = PnpDeviceObjectToDeviceInstance(DeviceObject, &KeyHandle, KEY_READ);
+ if (NT_SUCCESS(Status))
+ {
+ /* Check for name given by caller */
+ if (KeyName)
{
- /* Return length */
- *ResultLength = sizeof(ULONG);
-
- /* Check if the buffer given was large enough */
- if (BufferLength < *ResultLength)
+ /* Open this key */
+ RtlInitUnicodeString(&KeyString, KeyName);
+ Status = IopOpenRegistryKeyEx(&SubHandle,
+ KeyHandle,
+ &KeyString,
+ KEY_READ);
+ if (NT_SUCCESS(Status))
{
- return STATUS_BUFFER_TOO_SMALL;
+ /* And use this handle instead */
+ ZwClose(KeyHandle);
+ KeyHandle = SubHandle;
}
-
- /* Return address */
- *(PULONG)PropertyBuffer = DeviceCaps.Address;
- return STATUS_SUCCESS;
}
- else
+
+ /* Check if sub-key handle succeeded (or no-op if no key name given) */
+ if (NT_SUCCESS(Status))
{
- return STATUS_OBJECT_NAME_NOT_FOUND;
+ /* Now get the size of the property */
+ Status = IopGetRegistryValue(KeyHandle,
+ ValueName,
+ &KeyValueInfo);
}
- break;
-
-// case DevicePropertyUINumber:
-// if (DeviceNode->CapabilityFlags == NULL)
-// return STATUS_INVALID_DEVICE_REQUEST;
-// Length = sizeof(ULONG);
-// Data = &DeviceNode->CapabilityFlags->UINumber;
-// break;
-
- case DevicePropertyClassName:
- case DevicePropertyClassGuid:
- case DevicePropertyDriverKeyName:
- case DevicePropertyManufacturer:
- case DevicePropertyFriendlyName:
- case DevicePropertyHardwareID:
- case DevicePropertyCompatibleIDs:
- case DevicePropertyDeviceDescription:
- case DevicePropertyLocationInformation:
- case DevicePropertyUINumber:
- {
- LPCWSTR RegistryPropertyName;
- UNICODE_STRING EnumRoot = RTL_CONSTANT_STRING(ENUM_ROOT);
- UNICODE_STRING ValueName;
- KEY_VALUE_PARTIAL_INFORMATION *ValueInformation;
- ULONG ValueInformationLength;
- HANDLE KeyHandle, EnumRootHandle;
- NTSTATUS Status;
-
- switch (DeviceProperty)
- {
- case DevicePropertyClassName:
- RegistryPropertyName = L"Class"; break;
- case DevicePropertyClassGuid:
- RegistryPropertyName = L"ClassGuid"; break;
- case DevicePropertyDriverKeyName:
- RegistryPropertyName = L"Driver"; break;
- case DevicePropertyManufacturer:
- RegistryPropertyName = L"Mfg"; break;
- case DevicePropertyFriendlyName:
- RegistryPropertyName = L"FriendlyName"; break;
- case DevicePropertyHardwareID:
- RegistryPropertyName = L"HardwareID"; break;
- case DevicePropertyCompatibleIDs:
- RegistryPropertyName = L"CompatibleIDs"; break;
- case DevicePropertyDeviceDescription:
- RegistryPropertyName = L"DeviceDesc"; break;
- case DevicePropertyLocationInformation:
- RegistryPropertyName = L"LocationInformation"; break;
- case DevicePropertyUINumber:
- RegistryPropertyName = L"UINumber"; break;
- default:
- /* Should not happen */
- ASSERT(FALSE);
- return STATUS_UNSUCCESSFUL;
- }
- DPRINT("Registry property %S\n", RegistryPropertyName);
-
- /* Open Enum key */
- Status = IopOpenRegistryKeyEx(&EnumRootHandle, NULL,
- &EnumRoot, KEY_READ);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("Error opening ENUM_ROOT, Status=0x%08x\n", Status);
- return Status;
- }
+ /* Close the key */
+ ZwClose(KeyHandle);
+ }
- /* Open instance key */
- Status = IopOpenRegistryKeyEx(&KeyHandle, EnumRootHandle,
- &DeviceNode->InstancePath, KEY_READ);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("Error opening InstancePath, Status=0x%08x\n", Status);
- ZwClose(EnumRootHandle);
- return Status;
- }
+ /* Fail if any of the registry operations failed */
+ if (!NT_SUCCESS(Status)) return Status;
- /* Allocate buffer to read as much data as required by the caller */
- ValueInformationLength = FIELD_OFFSET(KEY_VALUE_PARTIAL_INFORMATION,
- Data[0]) + BufferLength;
- ValueInformation = ExAllocatePool(PagedPool, ValueInformationLength);
- if (!ValueInformation)
- {
- ZwClose(KeyHandle);
- return STATUS_INSUFFICIENT_RESOURCES;
- }
+ /* Check how much data we have to copy */
+ Length = KeyValueInfo->DataLength;
+ if (*BufferLength >= Length)
+ {
+ /* Check for a match in the value type */
+ if (KeyValueInfo->Type == ValueType)
+ {
+ /* Copy the data */
+ RtlCopyMemory(Buffer,
+ (PVOID)((ULONG_PTR)KeyValueInfo +
+ KeyValueInfo->DataOffset),
+ Length);
+ }
+ else
+ {
+ /* Invalid registry property type, fail */
+ Status = STATUS_INVALID_PARAMETER_2;
+ }
+ }
+ else
+ {
+ /* Buffer is too small to hold data */
+ Status = STATUS_BUFFER_TOO_SMALL;
+ }
- /* Read the value */
- RtlInitUnicodeString(&ValueName, RegistryPropertyName);
- Status = ZwQueryValueKey(KeyHandle, &ValueName,
- KeyValuePartialInformation, ValueInformation,
- ValueInformationLength,
- &ValueInformationLength);
- ZwClose(KeyHandle);
+ /* Return the required buffer length, free the buffer, and return status */
+ *BufferLength = Length;
+ ExFreePool(KeyValueInfo);
+ return Status;
+}
- /* Return data */
- *ResultLength = ValueInformation->DataLength;
+#define PIP_RETURN_DATA(x, y) {ReturnLength = x; Data = y; Status = STATUS_SUCCESS; break;}
+#define PIP_REGISTRY_DATA(x, y) {ValueName = x; ValueType = y; break;}
+#define PIP_UNIMPLEMENTED() {UNIMPLEMENTED; while(TRUE); break;}
- if (!NT_SUCCESS(Status))
- {
- ExFreePool(ValueInformation);
- if (Status == STATUS_BUFFER_OVERFLOW)
- return STATUS_BUFFER_TOO_SMALL;
- DPRINT1("Problem: Status=0x%08x, ResultLength = %d\n", Status, *ResultLength);
- return Status;
- }
+/*
+ * @implemented
+ */
+NTSTATUS
+NTAPI
+IoGetDeviceProperty(IN PDEVICE_OBJECT DeviceObject,
+ IN DEVICE_REGISTRY_PROPERTY DeviceProperty,
+ IN ULONG BufferLength,
+ OUT PVOID PropertyBuffer,
+ OUT PULONG ResultLength)
+{
+ PDEVICE_NODE DeviceNode = IopGetDeviceNode(DeviceObject);
+ DEVICE_CAPABILITIES DeviceCaps;
+ ULONG ReturnLength = 0, Length = 0, ValueType;
+ PWCHAR ValueName = NULL, EnumeratorNameEnd, DeviceInstanceName;
+ PVOID Data = NULL;
+ NTSTATUS Status = STATUS_BUFFER_TOO_SMALL;
+ GUID BusTypeGuid;
+ POBJECT_NAME_INFORMATION ObjectNameInfo = NULL;
+ DPRINT("IoGetDeviceProperty(0x%p %d)\n", DeviceObject, DeviceProperty);
- /* FIXME: Verify the value (NULL-terminated, correct format). */
- RtlCopyMemory(PropertyBuffer, ValueInformation->Data,
- ValueInformation->DataLength);
- ExFreePool(ValueInformation);
+ /* Assume failure */
+ *ResultLength = 0;
- return STATUS_SUCCESS;
- }
+ /* Only PDOs can call this */
+ if (!DeviceNode) return STATUS_INVALID_DEVICE_REQUEST;
- case DevicePropertyBootConfiguration:
- Length = 0;
- if (DeviceNode->BootResources->Count != 0)
- {
- Length = CM_RESOURCE_LIST_SIZE(DeviceNode->BootResources);
- }
- Data = DeviceNode->BootResources;
- break;
+ /* Handle all properties */
+ switch (DeviceProperty)
+ {
+ case DevicePropertyBusTypeGuid:
- /* FIXME: use a translated boot configuration instead */
- case DevicePropertyBootConfigurationTranslated:
- Length = 0;
- if (DeviceNode->BootResources->Count != 0)
- {
- Length = CM_RESOURCE_LIST_SIZE(DeviceNode->BootResources);
- }
- Data = DeviceNode->BootResources;
- break;
-
- case DevicePropertyEnumeratorName:
- /* A buffer overflow can't happen here, since InstancePath
- * always contains the enumerator name followed by \\ */
- Ptr = wcschr(DeviceNode->InstancePath.Buffer, L'\\');
- ASSERT(Ptr);
- Length = (Ptr - DeviceNode->InstancePath.Buffer) * sizeof(WCHAR);
- Data = DeviceNode->InstancePath.Buffer;
- break;
-
- case DevicePropertyPhysicalDeviceObjectName:
- Status = ObQueryNameString(DeviceNode->PhysicalDeviceObject,
- NULL,
- 0,
- &RequiredLength);
- if (Status == STATUS_SUCCESS)
- {
- Length = 0;
- Data = L"";
- }
- else if (Status == STATUS_INFO_LENGTH_MISMATCH)
- {
- ObjectNameInfoLength = RequiredLength;
- ObjectNameInfo = ExAllocatePool(PagedPool, ObjectNameInfoLength);
- if (!ObjectNameInfo)
- return STATUS_INSUFFICIENT_RESOURCES;
+ /* Get the GUID from the internal cache */
+ Status = PnpBusTypeGuidGet(DeviceNode->ChildBusTypeIndex, &BusTypeGuid);
+ if (!NT_SUCCESS(Status)) return Status;
- Status = ObQueryNameString(DeviceNode->PhysicalDeviceObject,
+ /* This is the format of the returned data */
+ PIP_RETURN_DATA(sizeof(GUID), &BusTypeGuid);
+
+ case DevicePropertyLegacyBusType:
+
+ /* Validate correct interface type */
+ if (DeviceNode->ChildInterfaceType == InterfaceTypeUndefined)
+ return STATUS_OBJECT_NAME_NOT_FOUND;
+
+ /* This is the format of the returned data */
+ PIP_RETURN_DATA(sizeof(INTERFACE_TYPE), &DeviceNode->ChildInterfaceType);
+
+ case DevicePropertyBusNumber:
+
+ /* Validate correct bus number */
+ if ((DeviceNode->ChildBusNumber & 0x80000000) == 0x80000000)
+ return STATUS_OBJECT_NAME_NOT_FOUND;
+
+ /* This is the format of the returned data */
+ PIP_RETURN_DATA(sizeof(ULONG), &DeviceNode->ChildBusNumber);
+
+ case DevicePropertyEnumeratorName:
+
+ /* Get the instance path */
+ DeviceInstanceName = DeviceNode->InstancePath.Buffer;
+
+ /* Sanity checks */
+ ASSERT((BufferLength & 1) == 0);
+ ASSERT(DeviceInstanceName != NULL);
+
+ /* Get the name from the path */
+ EnumeratorNameEnd = wcschr(DeviceInstanceName, OBJ_NAME_PATH_SEPARATOR);
+ ASSERT(EnumeratorNameEnd);
+
+ /* This is the format of the returned data */
+ PIP_RETURN_DATA((EnumeratorNameEnd - DeviceInstanceName) * 2,
+ &DeviceNode->ChildBusNumber);
+
+ case DevicePropertyAddress:
+
+ /* Query the device caps */
+ Status = PpIrpQueryCapabilities(DeviceObject, &DeviceCaps);
+ if (!NT_SUCCESS(Status) || (DeviceCaps.Address == MAXULONG))
+ return STATUS_OBJECT_NAME_NOT_FOUND;
+
+ /* This is the format of the returned data */
+ PIP_RETURN_DATA(sizeof(ULONG), &DeviceCaps.Address);
+
+ case DevicePropertyBootConfigurationTranslated:
+
+ /* Validate we have resources */
+ if (!DeviceNode->BootResources)
+// if (!DeviceNode->BootResourcesTranslated) // FIXFIX: Need this field
+ {
+ /* No resources will still fake success, but with 0 bytes */
+ *ResultLength = 0;
+ return STATUS_SUCCESS;
+ }
+
+ /* This is the format of the returned data */
+ PIP_RETURN_DATA(PnpDetermineResourceListSize(DeviceNode->BootResources), // FIXFIX: Should use BootResourcesTranslated
+ DeviceNode->BootResources); // FIXFIX: Should use BootResourcesTranslated
+
+ case DevicePropertyPhysicalDeviceObjectName:
+
+ /* Sanity check for Unicode-sized string */
+ ASSERT((BufferLength & 1) == 0);
+
+ /* Allocate name buffer */
+ Length = BufferLength + sizeof(OBJECT_NAME_INFORMATION);
+ ObjectNameInfo = ExAllocatePool(PagedPool, Length);
+ if (!ObjectNameInfo) return STATUS_INSUFFICIENT_RESOURCES;
+
+ /* Query the PDO name */
+ Status = ObQueryNameString(DeviceObject,
ObjectNameInfo,
- ObjectNameInfoLength,
- &RequiredLength);
- if (NT_SUCCESS(Status))
+ Length,
+ ResultLength);
+ if (Status == STATUS_INFO_LENGTH_MISMATCH)
{
- Length = ObjectNameInfo->Name.Length;
- Data = ObjectNameInfo->Name.Buffer;
+ /* It's up to the caller to try again */
+ Status = STATUS_BUFFER_TOO_SMALL;
}
- else
- return Status;
- }
- else
- return Status;
- break;
-
- default:
- return STATUS_INVALID_PARAMETER_2;
+
+ /* Return if successful */
+ if (NT_SUCCESS(Status)) PIP_RETURN_DATA(ObjectNameInfo->Name.Length,
+ ObjectNameInfo->Name.Buffer);
+
+ /* Let the caller know how big the name is */
+ *ResultLength -= sizeof(OBJECT_NAME_INFORMATION);
+ break;
+
+ /* Handle the registry-based properties */
+ case DevicePropertyUINumber:
+ PIP_REGISTRY_DATA(REGSTR_VAL_UI_NUMBER, REG_DWORD);
+ case DevicePropertyLocationInformation:
+ PIP_REGISTRY_DATA(REGSTR_VAL_LOCATION_INFORMATION, REG_SZ);
+ case DevicePropertyDeviceDescription:
+ PIP_REGISTRY_DATA(REGSTR_VAL_DEVDESC, REG_SZ);
+ case DevicePropertyHardwareID:
+ PIP_REGISTRY_DATA(REGSTR_VAL_HARDWAREID, REG_MULTI_SZ);
+ case DevicePropertyCompatibleIDs:
+ PIP_REGISTRY_DATA(REGSTR_VAL_COMPATIBLEIDS, REG_MULTI_SZ);
+ case DevicePropertyBootConfiguration:
+ PIP_REGISTRY_DATA(REGSTR_VAL_BOOTCONFIG, REG_RESOURCE_LIST);
+ case DevicePropertyClassName:
+ PIP_REGISTRY_DATA(REGSTR_VAL_CLASS, REG_SZ);
+ case DevicePropertyClassGuid:
+ PIP_REGISTRY_DATA(REGSTR_VAL_CLASSGUID, REG_SZ);
+ case DevicePropertyDriverKeyName:
+ PIP_REGISTRY_DATA(REGSTR_VAL_DRIVER, REG_SZ);
+ case DevicePropertyManufacturer:
+ PIP_REGISTRY_DATA(REGSTR_VAL_MFG, REG_SZ);
+ case DevicePropertyFriendlyName:
+ PIP_REGISTRY_DATA(REGSTR_VAL_FRIENDLYNAME, REG_SZ);
+ case DevicePropertyContainerID:
+ //PIP_REGISTRY_DATA(REGSTR_VAL_CONTAINERID, REG_SZ); // Win7
+ PIP_UNIMPLEMENTED();
+ case DevicePropertyRemovalPolicy:
+ PIP_UNIMPLEMENTED();
+ case DevicePropertyInstallState:
+ PIP_UNIMPLEMENTED();
+ case DevicePropertyResourceRequirements:
+ PIP_UNIMPLEMENTED();
+ case DevicePropertyAllocatedResources:
+ PIP_UNIMPLEMENTED();
+ default:
+ return STATUS_INVALID_PARAMETER_2;
}
-
- /* Prepare returned values */
- *ResultLength = Length;
- if (BufferLength < Length)
+
+ /* Having a registry value name implies registry data */
+ if (ValueName)
+ {
+ /* We know up-front how much data to expect */
+ *ResultLength = BufferLength;
+
+ /* Go get the data, use the LogConf subkey if necessary */
+ Status = PiGetDeviceRegistryProperty(DeviceObject,
+ ValueType,
+ ValueName,
+ (DeviceProperty ==
+ DevicePropertyBootConfiguration) ?
+ L"LogConf": NULL,
+ PropertyBuffer,
+ ResultLength);
+ }
+ else if (NT_SUCCESS(Status))
{
- if (ObjectNameInfo != NULL)
- ExFreePool(ObjectNameInfo);
+ /* We know up-front how much data to expect, check the caller's buffer */
+ *ResultLength = ReturnLength;
+ if (ReturnLength <= BufferLength)
+ {
+ /* Buffer is all good, copy the data */
+ RtlCopyMemory(PropertyBuffer, Data, ReturnLength);
- return STATUS_BUFFER_TOO_SMALL;
+ /* Check for properties that require a null-terminated string */
+ if ((DeviceProperty == DevicePropertyEnumeratorName) ||
+ (DeviceProperty == DevicePropertyPhysicalDeviceObjectName))
+ {
+ /* Terminate the string */
+ ((PWCHAR)PropertyBuffer)[ReturnLength / sizeof(WCHAR)] = UNICODE_NULL;
+ }
+
+ /* This is the success path */
+ Status = STATUS_SUCCESS;
+ }
+ else
+ {
+ /* Failure path */
+ Status = STATUS_BUFFER_TOO_SMALL;
+ }
}
- RtlCopyMemory(PropertyBuffer, Data, Length);
-
- /* NULL terminate the string (if required) */
- if (DeviceProperty == DevicePropertyEnumeratorName ||
- DeviceProperty == DevicePropertyPhysicalDeviceObjectName)
- ((LPWSTR)PropertyBuffer)[Length / sizeof(WCHAR)] = UNICODE_NULL;
-
- if (ObjectNameInfo != NULL)
- ExFreePool(ObjectNameInfo);
-
- return STATUS_SUCCESS;
+
+ /* Free any allocation we may have made, and return the status code */
+ if (ObjectNameInfo) ExFreePool(ObjectNameInfo);
+ return Status;
}
/*
else
{
DeviceNode = IopGetDeviceNode(DeviceObject);
+ if (!DeviceNode)
+ return STATUS_INVALID_DEVICE_REQUEST;
KeyNameLength += sizeof(EnumKeyName) - sizeof(UNICODE_NULL) +
DeviceNode->InstancePath.Length;
}
projects / reactos.git / blobdiff