KGUARDED_MUTEX PpDeviceReferenceTableLock;
RTL_AVL_TABLE PpDeviceReferenceTable;
+extern ERESOURCE IopDriverLoadResource;
extern ULONG ExpInitializationPhase;
extern BOOLEAN ExpInTextModeSetup;
extern BOOLEAN PnpSystemInit;
PDRIVER_OBJECT IopRootDriverObject;
PIO_BUS_TYPE_GUID_LIST PnpBusTypeGuidList = NULL;
+LIST_ENTRY IopDeviceRelationsRequestList;
+WORK_QUEUE_ITEM IopDeviceRelationsWorkItem;
+BOOLEAN IopDeviceRelationsRequestInProgress;
+KSPIN_LOCK IopDeviceRelationsSpinLock;
typedef struct _INVALIDATE_DEVICE_RELATION_DATA
{
+ LIST_ENTRY RequestListEntry;
PDEVICE_OBJECT DeviceObject;
DEVICE_RELATION_TYPE Type;
- PIO_WORKITEM WorkItem;
} INVALIDATE_DEVICE_RELATION_DATA, *PINVALIDATE_DEVICE_RELATION_DATA;
/* FUNCTIONS *****************************************************************/
PKEY_VALUE_PARTIAL_INFORMATION PartialInfo;
ULONG HidLength = 0, CidLength = 0, BufferLength;
PWCHAR IdBuffer, OriginalIdBuffer;
-
+
/* Open the device instance key */
Status = IopCreateDeviceKeyPath(&DeviceNode->InstancePath, 0, &InstanceKey);
if (Status != STATUS_SUCCESS)
ZwClose(InstanceKey);
return;
}
-
+
/* Copy CID next */
CidLength = PartialInfo->DataLength;
RtlCopyMemory(((PUCHAR)IdBuffer) + HidLength, PartialInfo->Data, CidLength);
/* Free our temp buffer */
ExFreePool(PartialInfo);
-
+
InitializeObjectAttributes(&ObjectAttributes,
&CriticalDeviceKeyU,
OBJ_KERNEL_HANDLE | OBJ_CASE_INSENSITIVE,
while (*IdBuffer)
{
USHORT StringLength = (USHORT)wcslen(IdBuffer) + 1, Index;
-
+
IopFixupDeviceId(IdBuffer);
-
+
/* Look through all subkeys for a match */
for (Index = 0; TRUE; Index++)
{
ULONG NeededLength;
PKEY_BASIC_INFORMATION BasicInfo;
-
+
Status = ZwEnumerateKey(CriticalDeviceKey,
Index,
KeyBasicInformation,
continue;
}
- DPRINT1("Installed service '%S' for critical device '%wZ'\n", PartialInfo->Data, &ChildIdNameU);
+ DPRINT("Installed service '%S' for critical device '%wZ'\n", PartialInfo->Data, &ChildIdNameU);
}
else
{
/* Advance to the next ID */
IdBuffer += StringLength;
}
-
+
ExFreePool(OriginalIdBuffer);
ZwClose(InstanceKey);
ZwClose(CriticalDeviceKey);
{
PDEVICE_OBJECT Fdo;
NTSTATUS Status;
-
+
if (!DriverObject)
{
/* Special case for bus driven devices */
{
IO_STACK_LOCATION Stack;
PVOID Dummy;
-
+
RtlZeroMemory(&Stack, sizeof(IO_STACK_LOCATION));
Stack.MajorFunction = IRP_MJ_PNP;
Stack.MinorFunction = IRP_MN_EJECT;
-
+
return IopSynchronousCall(DeviceObject, &Stack, &Dummy);
}
{
IO_STACK_LOCATION Stack;
PVOID Dummy;
-
+
RtlZeroMemory(&Stack, sizeof(IO_STACK_LOCATION));
Stack.MajorFunction = IRP_MJ_PNP;
Stack.MinorFunction = IRP_MN_SURPRISE_REMOVAL;
-
+
/* Drivers should never fail a IRP_MN_SURPRISE_REMOVAL request */
IopSynchronousCall(DeviceObject, &Stack, &Dummy);
}
IO_STACK_LOCATION Stack;
PVOID Dummy;
NTSTATUS Status;
-
+
ASSERT(DeviceNode);
-
+
IopQueueTargetDeviceEvent(&GUID_DEVICE_REMOVE_PENDING,
&DeviceNode->InstancePath);
-
+
RtlZeroMemory(&Stack, sizeof(IO_STACK_LOCATION));
Stack.MajorFunction = IRP_MJ_PNP;
Stack.MinorFunction = IRP_MN_QUERY_REMOVE_DEVICE;
&GUID_TARGET_DEVICE_QUERY_REMOVE,
NULL,
NULL);
-
+
if (!NT_SUCCESS(Status))
{
DPRINT1("Removal vetoed by %wZ\n", &DeviceNode->InstancePath);
{
IO_STACK_LOCATION Stack;
PVOID Dummy;
-
+
RtlZeroMemory(&Stack, sizeof(IO_STACK_LOCATION));
Stack.MajorFunction = IRP_MJ_PNP;
Stack.MinorFunction = IRP_MN_QUERY_STOP_DEVICE;
-
+
return IopSynchronousCall(DeviceObject, &Stack, &Dummy);
}
{
IO_STACK_LOCATION Stack;
PVOID Dummy;
+ PDEVICE_NODE DeviceNode = IopGetDeviceNode(DeviceObject);
+
+ /* Drop all our state for this device in case it isn't really going away */
+ DeviceNode->Flags &= DNF_ENUMERATED | DNF_PROCESSED;
RtlZeroMemory(&Stack, sizeof(IO_STACK_LOCATION));
Stack.MajorFunction = IRP_MJ_PNP;
&GUID_TARGET_DEVICE_REMOVE_COMPLETE,
NULL,
NULL);
+ ObDereferenceObject(DeviceObject);
}
static
{
IO_STACK_LOCATION Stack;
PVOID Dummy;
-
+
RtlZeroMemory(&Stack, sizeof(IO_STACK_LOCATION));
Stack.MajorFunction = IRP_MJ_PNP;
Stack.MinorFunction = IRP_MN_CANCEL_REMOVE_DEVICE;
-
+
/* Drivers should never fail a IRP_MN_CANCEL_REMOVE_DEVICE request */
IopSynchronousCall(DeviceObject, &Stack, &Dummy);
-
+
IopNotifyPlugPlayNotification(DeviceObject,
EventCategoryTargetDeviceChange,
&GUID_TARGET_DEVICE_REMOVE_CANCELLED,
{
IO_STACK_LOCATION Stack;
PVOID Dummy;
-
+
RtlZeroMemory(&Stack, sizeof(IO_STACK_LOCATION));
Stack.MajorFunction = IRP_MJ_PNP;
Stack.MinorFunction = IRP_MN_STOP_DEVICE;
-
+
/* Drivers should never fail a IRP_MN_STOP_DEVICE request */
IopSynchronousCall(DeviceObject, &Stack, &Dummy);
}
NTSTATUS Status;
PVOID Dummy;
DEVICE_CAPABILITIES DeviceCapabilities;
-
+
/* Get the device node */
DeviceNode = IopGetDeviceNode(DeviceObject);
-
+
ASSERT(!(DeviceNode->Flags & DNF_DISABLED));
- /* Build the I/O stack locaiton */
+ /* Build the I/O stack location */
RtlZeroMemory(&Stack, sizeof(IO_STACK_LOCATION));
Stack.MajorFunction = IRP_MJ_PNP;
Stack.MinorFunction = IRP_MN_START_DEVICE;
-
+
Stack.Parameters.StartDevice.AllocatedResources =
DeviceNode->ResourceList;
Stack.Parameters.StartDevice.AllocatedResourcesTranslated =
DPRINT1("Warning: PnP Start failed (%wZ) [Status: 0x%x]\n", &DeviceNode->InstancePath, Status);
return;
}
-
+
DPRINT("Sending IRP_MN_QUERY_CAPABILITIES to device stack (after start)\n");
Status = IopQueryDeviceCapabilities(DeviceNode, &DeviceCapabilities);
/* Invalidate device state so IRP_MN_QUERY_PNP_DEVICE_STATE is sent */
IoInvalidateDeviceState(DeviceObject);
-
+
/* Otherwise, mark us as started */
DeviceNode->Flags |= DNF_STARTED;
DeviceNode->Flags &= ~DNF_STOPPED;
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)));
-
+
/* 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)
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))
/* Nothing to do */
Status = STATUS_SUCCESS;
}
-
+
/* Return */
return Status;
}
PDEVICE_NODE DeviceNode)
{
NTSTATUS Status;
- HANDLE InstanceHandle = INVALID_HANDLE_VALUE, ControlHandle = INVALID_HANDLE_VALUE;
+ HANDLE InstanceHandle = NULL, ControlHandle = NULL;
UNICODE_STRING KeyName;
OBJECT_ATTRIBUTES ObjectAttributes;
RtlInitUnicodeString(&KeyName, L"Control");
InitializeObjectAttributes(&ObjectAttributes,
&KeyName,
- OBJ_CASE_INSENSITIVE,
+ OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
InstanceHandle,
NULL);
Status = ZwCreateKey(&ControlHandle, KEY_SET_VALUE, &ObjectAttributes, 0, NULL, REG_OPTION_VOLATILE, NULL);
// }
ByeBye:
- if (ControlHandle != INVALID_HANDLE_VALUE)
+ if (ControlHandle != NULL)
ZwClose(ControlHandle);
- if (InstanceHandle != INVALID_HANDLE_VALUE)
+ if (InstanceHandle != NULL)
ZwClose(InstanceHandle);
return Status;
return Status;
}
-static VOID NTAPI
-IopAsynchronousInvalidateDeviceRelations(
- IN PDEVICE_OBJECT DeviceObject,
- IN PVOID InvalidateContext)
+static
+VOID
+NTAPI
+IopDeviceRelationsWorker(
+ _In_ PVOID Context)
{
- PINVALIDATE_DEVICE_RELATION_DATA Data = InvalidateContext;
+ PLIST_ENTRY ListEntry;
+ PINVALIDATE_DEVICE_RELATION_DATA Data;
+ KIRQL OldIrql;
- IoSynchronousInvalidateDeviceRelations(
- Data->DeviceObject,
- Data->Type);
+ KeAcquireSpinLock(&IopDeviceRelationsSpinLock, &OldIrql);
+ while (!IsListEmpty(&IopDeviceRelationsRequestList))
+ {
+ ListEntry = RemoveHeadList(&IopDeviceRelationsRequestList);
+ KeReleaseSpinLock(&IopDeviceRelationsSpinLock, OldIrql);
+ Data = CONTAINING_RECORD(ListEntry,
+ INVALIDATE_DEVICE_RELATION_DATA,
+ RequestListEntry);
+
+ IoSynchronousInvalidateDeviceRelations(Data->DeviceObject,
+ Data->Type);
- ObDereferenceObject(Data->DeviceObject);
- IoFreeWorkItem(Data->WorkItem);
- ExFreePool(Data);
+ ObDereferenceObject(Data->DeviceObject);
+ ExFreePool(Data);
+ KeAcquireSpinLock(&IopDeviceRelationsSpinLock, &OldIrql);
+ }
+ IopDeviceRelationsRequestInProgress = FALSE;
+ KeReleaseSpinLock(&IopDeviceRelationsSpinLock, OldIrql);
}
NTSTATUS
DPRINT("ParentNode 0x%p PhysicalDeviceObject 0x%p ServiceName %wZ\n",
ParentNode, PhysicalDeviceObject, ServiceName);
- Node = (PDEVICE_NODE)ExAllocatePool(NonPagedPool, sizeof(DEVICE_NODE));
+ Node = ExAllocatePoolWithTag(NonPagedPool, sizeof(DEVICE_NODE), TAG_IO_DEVNODE);
if (!Node)
{
return STATUS_INSUFFICIENT_RESOURCES;
FullServiceName.Buffer = ExAllocatePool(PagedPool, FullServiceName.MaximumLength);
if (!FullServiceName.Buffer)
{
- ExFreePool(Node);
+ ExFreePoolWithTag(Node, TAG_IO_DEVNODE);
return STATUS_INSUFFICIENT_RESOURCES;
}
if (!NT_SUCCESS(Status))
{
DPRINT1("PnpRootCreateDevice() failed with status 0x%08X\n", Status);
- ExFreePool(Node);
+ ExFreePoolWithTag(Node, TAG_IO_DEVNODE);
return Status;
}
if (!NT_SUCCESS(Status))
{
ZwClose(InstanceHandle);
- ExFreePool(Node);
+ ExFreePoolWithTag(Node, TAG_IO_DEVNODE);
ExFreePool(FullServiceName.Buffer);
return Status;
}
if (!Node->ServiceName.Buffer)
{
ZwClose(InstanceHandle);
- ExFreePool(Node);
+ ExFreePoolWithTag(Node, TAG_IO_DEVNODE);
ExFreePool(FullServiceName.Buffer);
return Status;
}
if (!NT_SUCCESS(Status))
{
- ExFreePool(Node);
+ ExFreePoolWithTag(Node, TAG_IO_DEVNODE);
return Status;
}
ExFreePool(DeviceNode->BootResources);
}
- ExFreePool(DeviceNode);
+ ((PEXTENDED_DEVOBJ_EXTENSION)DeviceNode->PhysicalDeviceObject->DeviceObjectExtension)->DeviceNode = NULL;
+ ExFreePoolWithTag(DeviceNode, TAG_IO_DEVNODE);
return STATUS_SUCCESS;
}
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;
-
+
/* Special case for IRP_MN_FILTER_RESOURCE_REQUIREMENTS */
if (IoStackLocation->MinorFunction == IRP_MN_FILTER_RESOURCE_REQUIREMENTS)
{
Irp->IoStatus.Information =
IoStatusBlock.Information = (ULONG_PTR)IoStackLocation->Parameters.FilterResourceRequirements.IoResourceRequirementList;
}
-
+
/* 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)
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;
&Stack->Parameters,
sizeof(Stack->Parameters));
}
-
+
/* Do the PnP call */
IoStatusBlock->Status = IopSynchronousCall(DeviceObject,
&IoStackLocation,
/* Open key */
InitializeObjectAttributes(&ObjectAttributes,
&KeyName,
- OBJ_CASE_INSENSITIVE,
+ OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
hParent,
NULL);
Status = ZwCreateKey(&hKey,
RtlInitUnicodeString(&KeyName, L"LogConf");
InitializeObjectAttributes(&ObjectAttributes,
&KeyName,
- OBJ_CASE_INSENSITIVE,
+ OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
InstanceKey,
NULL);
Status = ZwCreateKey(&LogConfKey,
RtlInitUnicodeString(&KeyName, L"Control");
InitializeObjectAttributes(&ObjectAttributes,
&KeyName,
- OBJ_CASE_INSENSITIVE,
+ OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
InstanceKey,
NULL);
Status = ZwCreateKey(&ControlHandle, 0, &ObjectAttributes, 0, NULL, REG_OPTION_VOLATILE, NULL);
IopActionInterrogateDeviceStack(PDEVICE_NODE DeviceNode,
PVOID Context)
{
- IO_STATUS_BLOCK IoStatusBlock;
- PDEVICE_NODE ParentDeviceNode;
- WCHAR InstancePath[MAX_PATH];
- IO_STACK_LOCATION Stack;
- NTSTATUS Status;
- ULONG RequiredLength;
- LCID LocaleId;
- HANDLE InstanceKey = NULL;
- UNICODE_STRING ValueName;
- UNICODE_STRING ParentIdPrefix = { 0, 0, NULL };
- UNICODE_STRING InstancePathU;
- DEVICE_CAPABILITIES DeviceCapabilities;
- PDEVICE_OBJECT OldDeviceObject;
+ IO_STATUS_BLOCK IoStatusBlock;
+ PWSTR InformationString;
+ PDEVICE_NODE ParentDeviceNode;
+ WCHAR InstancePath[MAX_PATH];
+ IO_STACK_LOCATION Stack;
+ NTSTATUS Status;
+ ULONG RequiredLength;
+ LCID LocaleId;
+ HANDLE InstanceKey = NULL;
+ UNICODE_STRING ValueName;
+ UNICODE_STRING ParentIdPrefix = { 0, 0, NULL };
+ UNICODE_STRING InstancePathU;
+ DEVICE_CAPABILITIES DeviceCapabilities;
+ PDEVICE_OBJECT OldDeviceObject;
- DPRINT("IopActionInterrogateDeviceStack(%p, %p)\n", DeviceNode, Context);
- DPRINT("PDO 0x%p\n", DeviceNode->PhysicalDeviceObject);
+ DPRINT("IopActionInterrogateDeviceStack(%p, %p)\n", DeviceNode, Context);
+ DPRINT("PDO 0x%p\n", DeviceNode->PhysicalDeviceObject);
- ParentDeviceNode = (PDEVICE_NODE)Context;
+ ParentDeviceNode = (PDEVICE_NODE)Context;
- /*
- * We are called for the parent too, but we don't need to do special
- * handling for this node
- */
+ /*
+ * We are called for the parent too, but we don't need to do special
+ * handling for this node
+ */
+ if (DeviceNode == ParentDeviceNode)
+ {
+ DPRINT("Success\n");
+ return STATUS_SUCCESS;
+ }
- if (DeviceNode == ParentDeviceNode)
- {
- DPRINT("Success\n");
- return STATUS_SUCCESS;
- }
+ /*
+ * Make sure this device node is a direct child of the parent device node
+ * that is given as an argument
+ */
+ if (DeviceNode->Parent != ParentDeviceNode)
+ {
+ DPRINT("Skipping 2+ level child\n");
+ return STATUS_SUCCESS;
+ }
- /*
- * Make sure this device node is a direct child of the parent device node
- * that is given as an argument
- */
+ /* Skip processing if it was already completed before */
+ if (DeviceNode->Flags & DNF_PROCESSED)
+ {
+ /* Nothing to do */
+ return STATUS_SUCCESS;
+ }
- if (DeviceNode->Parent != ParentDeviceNode)
- {
- DPRINT("Skipping 2+ level child\n");
- return STATUS_SUCCESS;
- }
+ /* Get Locale ID */
+ Status = ZwQueryDefaultLocale(FALSE, &LocaleId);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("ZwQueryDefaultLocale() failed with status 0x%lx\n", Status);
+ return Status;
+ }
- /* Skip processing if it was already completed before */
- if (DeviceNode->Flags & DNF_PROCESSED)
- {
- /* Nothing to do */
- return STATUS_SUCCESS;
- }
+ /*
+ * FIXME: For critical errors, cleanup and disable device, but always
+ * return STATUS_SUCCESS.
+ */
- /* Get Locale ID */
- Status = ZwQueryDefaultLocale(FALSE, &LocaleId);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("ZwQueryDefaultLocale() failed with status 0x%lx\n", Status);
- return Status;
- }
+ DPRINT("Sending IRP_MN_QUERY_ID.BusQueryDeviceID to device stack\n");
- /*
- * FIXME: For critical errors, cleanup and disable device, but always
- * return STATUS_SUCCESS.
- */
+ Stack.Parameters.QueryId.IdType = BusQueryDeviceID;
+ Status = IopInitiatePnpIrp(DeviceNode->PhysicalDeviceObject,
+ &IoStatusBlock,
+ IRP_MN_QUERY_ID,
+ &Stack);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("IopInitiatePnpIrp() failed (Status %x)\n", Status);
- DPRINT("Sending IRP_MN_QUERY_ID.BusQueryDeviceID to device stack\n");
+ /* We have to return success otherwise we abort the traverse operation */
+ return STATUS_SUCCESS;
+ }
- Stack.Parameters.QueryId.IdType = BusQueryDeviceID;
- Status = IopInitiatePnpIrp(DeviceNode->PhysicalDeviceObject,
- &IoStatusBlock,
- IRP_MN_QUERY_ID,
- &Stack);
- if (NT_SUCCESS(Status))
- {
- /* Copy the device id string */
- wcscpy(InstancePath, (PWSTR)IoStatusBlock.Information);
+ /* Copy the device id string */
+ InformationString = (PWSTR)IoStatusBlock.Information;
+ wcscpy(InstancePath, InformationString);
- /*
- * FIXME: Check for valid characters, if there is invalid characters
- * then bugcheck.
- */
- }
- else
- {
- DPRINT1("IopInitiatePnpIrp() failed (Status %x)\n", Status);
+ /*
+ * FIXME: Check for valid characters, if there is invalid characters
+ * then bugcheck.
+ */
- /* We have to return success otherwise we abort the traverse operation */
- return STATUS_SUCCESS;
- }
+ ExFreePoolWithTag(InformationString, 0);
- DPRINT("Sending IRP_MN_QUERY_CAPABILITIES to device stack (after enumeration)\n");
+ DPRINT("Sending IRP_MN_QUERY_CAPABILITIES to device stack (after enumeration)\n");
- Status = IopQueryDeviceCapabilities(DeviceNode, &DeviceCapabilities);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("IopInitiatePnpIrp() failed (Status 0x%08lx)\n", Status);
+ Status = IopQueryDeviceCapabilities(DeviceNode, &DeviceCapabilities);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("IopInitiatePnpIrp() failed (Status 0x%08lx)\n", Status);
- /* We have to return success otherwise we abort the traverse operation */
- return STATUS_SUCCESS;
- }
+ /* We have to return success otherwise we abort the traverse operation */
+ return STATUS_SUCCESS;
+ }
- /* This bit is only check after enumeration */
- if (DeviceCapabilities.HardwareDisabled)
- {
- /* FIXME: Cleanup device */
- DeviceNode->Flags |= DNF_DISABLED;
- return STATUS_SUCCESS;
- }
- else
- DeviceNode->Flags &= ~DNF_DISABLED;
+ /* This bit is only check after enumeration */
+ if (DeviceCapabilities.HardwareDisabled)
+ {
+ /* FIXME: Cleanup device */
+ DeviceNode->Flags |= DNF_DISABLED;
+ return STATUS_SUCCESS;
+ }
+ else
+ {
+ DeviceNode->Flags &= ~DNF_DISABLED;
+ }
- if (!DeviceCapabilities.UniqueID)
- {
- /* Device has not a unique ID. We need to prepend parent bus unique identifier */
- DPRINT("Instance ID is not unique\n");
- Status = IopGetParentIdPrefix(DeviceNode, &ParentIdPrefix);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("IopGetParentIdPrefix() failed (Status 0x%08lx)\n", Status);
+ if (!DeviceCapabilities.UniqueID)
+ {
+ /* Device has not a unique ID. We need to prepend parent bus unique identifier */
+ DPRINT("Instance ID is not unique\n");
+ Status = IopGetParentIdPrefix(DeviceNode, &ParentIdPrefix);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("IopGetParentIdPrefix() failed (Status 0x%08lx)\n", Status);
- /* We have to return success otherwise we abort the traverse operation */
- return STATUS_SUCCESS;
- }
- }
+ /* We have to return success otherwise we abort the traverse operation */
+ return STATUS_SUCCESS;
+ }
+ }
- DPRINT("Sending IRP_MN_QUERY_ID.BusQueryInstanceID to device stack\n");
+ DPRINT("Sending IRP_MN_QUERY_ID.BusQueryInstanceID to device stack\n");
- Stack.Parameters.QueryId.IdType = BusQueryInstanceID;
- Status = IopInitiatePnpIrp(DeviceNode->PhysicalDeviceObject,
- &IoStatusBlock,
- IRP_MN_QUERY_ID,
- &Stack);
- if (NT_SUCCESS(Status))
- {
- /* Append the instance id string */
- wcscat(InstancePath, L"\\");
- if (ParentIdPrefix.Length > 0)
- {
- /* Add information from parent bus device to InstancePath */
- wcscat(InstancePath, ParentIdPrefix.Buffer);
- if (IoStatusBlock.Information && *(PWSTR)IoStatusBlock.Information)
- wcscat(InstancePath, L"&");
- }
- if (IoStatusBlock.Information)
- wcscat(InstancePath, (PWSTR)IoStatusBlock.Information);
+ Stack.Parameters.QueryId.IdType = BusQueryInstanceID;
+ Status = IopInitiatePnpIrp(DeviceNode->PhysicalDeviceObject,
+ &IoStatusBlock,
+ IRP_MN_QUERY_ID,
+ &Stack);
+ if (NT_SUCCESS(Status))
+ {
+ InformationString = (PWSTR)IoStatusBlock.Information;
- /*
- * FIXME: Check for valid characters, if there is invalid characters
- * then bugcheck
- */
- }
- else
- {
- DPRINT("IopInitiatePnpIrp() failed (Status %x)\n", Status);
- }
- RtlFreeUnicodeString(&ParentIdPrefix);
+ /* Append the instance id string */
+ wcscat(InstancePath, L"\\");
+ if (ParentIdPrefix.Length > 0)
+ {
+ /* Add information from parent bus device to InstancePath */
+ wcscat(InstancePath, ParentIdPrefix.Buffer);
+ if (InformationString && *InformationString)
+ {
+ wcscat(InstancePath, L"&");
+ }
+ }
+ if (InformationString)
+ {
+ wcscat(InstancePath, InformationString);
+ }
- if (!RtlCreateUnicodeString(&InstancePathU, InstancePath))
- {
- DPRINT("No resources\n");
- /* FIXME: Cleanup and disable device */
- }
+ /*
+ * FIXME: Check for valid characters, if there is invalid characters
+ * then bugcheck
+ */
- /* Verify that this is not a duplicate */
- OldDeviceObject = IopGetDeviceObjectFromDeviceInstance(&InstancePathU);
- if (OldDeviceObject != NULL)
- {
- PDEVICE_NODE OldDeviceNode = IopGetDeviceNode(OldDeviceObject);
+ if (InformationString)
+ {
+ ExFreePoolWithTag(InformationString, 0);
+ }
+ }
+ else
+ {
+ DPRINT("IopInitiatePnpIrp() failed (Status %x)\n", Status);
+ }
+ RtlFreeUnicodeString(&ParentIdPrefix);
- DPRINT1("Duplicate device instance '%wZ'\n", &InstancePathU);
- DPRINT1("Current instance parent: '%wZ'\n", &DeviceNode->Parent->InstancePath);
- DPRINT1("Old instance parent: '%wZ'\n", &OldDeviceNode->Parent->InstancePath);
+ if (!RtlCreateUnicodeString(&InstancePathU, InstancePath))
+ {
+ DPRINT("No resources\n");
+ /* FIXME: Cleanup and disable device */
+ }
- KeBugCheckEx(PNP_DETECTED_FATAL_ERROR,
- 0x01,
- (ULONG_PTR)DeviceNode->PhysicalDeviceObject,
- (ULONG_PTR)OldDeviceObject,
- 0);
- }
+ /* Verify that this is not a duplicate */
+ OldDeviceObject = IopGetDeviceObjectFromDeviceInstance(&InstancePathU);
+ if (OldDeviceObject != NULL)
+ {
+ PDEVICE_NODE OldDeviceNode = IopGetDeviceNode(OldDeviceObject);
- DeviceNode->InstancePath = InstancePathU;
+ DPRINT1("Duplicate device instance '%wZ'\n", &InstancePathU);
+ DPRINT1("Current instance parent: '%wZ'\n", &DeviceNode->Parent->InstancePath);
+ DPRINT1("Old instance parent: '%wZ'\n", &OldDeviceNode->Parent->InstancePath);
- DPRINT("InstancePath is %S\n", DeviceNode->InstancePath.Buffer);
+ KeBugCheckEx(PNP_DETECTED_FATAL_ERROR,
+ 0x01,
+ (ULONG_PTR)DeviceNode->PhysicalDeviceObject,
+ (ULONG_PTR)OldDeviceObject,
+ 0);
+ }
- /*
- * Create registry key for the instance id, if it doesn't exist yet
- */
- Status = IopCreateDeviceKeyPath(&DeviceNode->InstancePath, 0, &InstanceKey);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("Failed to create the instance key! (Status %lx)\n", Status);
+ DeviceNode->InstancePath = InstancePathU;
- /* We have to return success otherwise we abort the traverse operation */
- return STATUS_SUCCESS;
- }
+ DPRINT("InstancePath is %S\n", DeviceNode->InstancePath.Buffer);
- IopQueryHardwareIds(DeviceNode, InstanceKey);
+ /*
+ * Create registry key for the instance id, if it doesn't exist yet
+ */
+ Status = IopCreateDeviceKeyPath(&DeviceNode->InstancePath, 0, &InstanceKey);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("Failed to create the instance key! (Status %lx)\n", Status);
- IopQueryCompatibleIds(DeviceNode, InstanceKey);
+ /* We have to return success otherwise we abort the traverse operation */
+ return STATUS_SUCCESS;
+ }
- DPRINT("Sending IRP_MN_QUERY_DEVICE_TEXT.DeviceTextDescription to device stack\n");
+ IopQueryHardwareIds(DeviceNode, InstanceKey);
- Stack.Parameters.QueryDeviceText.DeviceTextType = DeviceTextDescription;
- Stack.Parameters.QueryDeviceText.LocaleId = LocaleId;
- Status = IopInitiatePnpIrp(
- DeviceNode->PhysicalDeviceObject,
- &IoStatusBlock,
- IRP_MN_QUERY_DEVICE_TEXT,
- &Stack);
- /* This key is mandatory, so even if the Irp fails, we still write it */
- RtlInitUnicodeString(&ValueName, L"DeviceDesc");
- if (ZwQueryValueKey(InstanceKey, &ValueName, KeyValueBasicInformation, NULL, 0, &RequiredLength) == STATUS_OBJECT_NAME_NOT_FOUND)
- {
- if (NT_SUCCESS(Status) &&
- IoStatusBlock.Information &&
- (*(PWSTR)IoStatusBlock.Information != 0))
- {
- /* This key is overriden when a driver is installed. Don't write the
- * new description if another one already exists */
- Status = ZwSetValueKey(InstanceKey,
- &ValueName,
- 0,
- REG_SZ,
- (PVOID)IoStatusBlock.Information,
- ((ULONG)wcslen((PWSTR)IoStatusBlock.Information) + 1) * sizeof(WCHAR));
- }
- else
- {
- UNICODE_STRING DeviceDesc = RTL_CONSTANT_STRING(L"Unknown device");
- DPRINT("Driver didn't return DeviceDesc (Status 0x%08lx), so place unknown device there\n", Status);
+ IopQueryCompatibleIds(DeviceNode, InstanceKey);
- Status = ZwSetValueKey(InstanceKey,
- &ValueName,
- 0,
- REG_SZ,
- DeviceDesc.Buffer,
- DeviceDesc.MaximumLength);
+ DPRINT("Sending IRP_MN_QUERY_DEVICE_TEXT.DeviceTextDescription to device stack\n");
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("ZwSetValueKey() failed (Status 0x%lx)\n", Status);
- }
+ Stack.Parameters.QueryDeviceText.DeviceTextType = DeviceTextDescription;
+ Stack.Parameters.QueryDeviceText.LocaleId = LocaleId;
+ Status = IopInitiatePnpIrp(DeviceNode->PhysicalDeviceObject,
+ &IoStatusBlock,
+ IRP_MN_QUERY_DEVICE_TEXT,
+ &Stack);
+ InformationString = NT_SUCCESS(Status) ? (PWSTR)IoStatusBlock.Information
+ : NULL;
+ /* This key is mandatory, so even if the Irp fails, we still write it */
+ RtlInitUnicodeString(&ValueName, L"DeviceDesc");
+ if (ZwQueryValueKey(InstanceKey, &ValueName, KeyValueBasicInformation, NULL, 0, &RequiredLength) == STATUS_OBJECT_NAME_NOT_FOUND)
+ {
+ if (InformationString &&
+ *InformationString != UNICODE_NULL)
+ {
+ /* This key is overriden when a driver is installed. Don't write the
+ * new description if another one already exists */
+ Status = ZwSetValueKey(InstanceKey,
+ &ValueName,
+ 0,
+ REG_SZ,
+ InformationString,
+ ((ULONG)wcslen(InformationString) + 1) * sizeof(WCHAR));
+ }
+ else
+ {
+ UNICODE_STRING DeviceDesc = RTL_CONSTANT_STRING(L"Unknown device");
+ DPRINT("Driver didn't return DeviceDesc (Status 0x%08lx), so place unknown device there\n", Status);
- }
- }
+ Status = ZwSetValueKey(InstanceKey,
+ &ValueName,
+ 0,
+ REG_SZ,
+ DeviceDesc.Buffer,
+ DeviceDesc.MaximumLength);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("ZwSetValueKey() failed (Status 0x%lx)\n", Status);
+ }
- DPRINT("Sending IRP_MN_QUERY_DEVICE_TEXT.DeviceTextLocation to device stack\n");
+ }
+ }
- Stack.Parameters.QueryDeviceText.DeviceTextType = DeviceTextLocationInformation;
- Stack.Parameters.QueryDeviceText.LocaleId = LocaleId;
- Status = IopInitiatePnpIrp(
- DeviceNode->PhysicalDeviceObject,
- &IoStatusBlock,
- IRP_MN_QUERY_DEVICE_TEXT,
- &Stack);
- if (NT_SUCCESS(Status) && IoStatusBlock.Information)
- {
- DPRINT("LocationInformation: %S\n", (PWSTR)IoStatusBlock.Information);
- RtlInitUnicodeString(&ValueName, L"LocationInformation");
- Status = ZwSetValueKey(InstanceKey,
- &ValueName,
- 0,
- REG_SZ,
- (PVOID)IoStatusBlock.Information,
- ((ULONG)wcslen((PWSTR)IoStatusBlock.Information) + 1) * sizeof(WCHAR));
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("ZwSetValueKey() failed (Status %lx)\n", Status);
- }
- }
- else
- {
- DPRINT("IopInitiatePnpIrp() failed (Status %x) or IoStatusBlock.Information=NULL\n", Status);
- }
+ if (InformationString)
+ {
+ ExFreePoolWithTag(InformationString, 0);
+ }
- DPRINT("Sending IRP_MN_QUERY_BUS_INFORMATION to device stack\n");
+ DPRINT("Sending IRP_MN_QUERY_DEVICE_TEXT.DeviceTextLocation to device stack\n");
- Status = IopInitiatePnpIrp(
- DeviceNode->PhysicalDeviceObject,
- &IoStatusBlock,
- IRP_MN_QUERY_BUS_INFORMATION,
- NULL);
- if (NT_SUCCESS(Status) && IoStatusBlock.Information)
- {
- PPNP_BUS_INFORMATION BusInformation =
- (PPNP_BUS_INFORMATION)IoStatusBlock.Information;
+ Stack.Parameters.QueryDeviceText.DeviceTextType = DeviceTextLocationInformation;
+ Stack.Parameters.QueryDeviceText.LocaleId = LocaleId;
+ Status = IopInitiatePnpIrp(DeviceNode->PhysicalDeviceObject,
+ &IoStatusBlock,
+ IRP_MN_QUERY_DEVICE_TEXT,
+ &Stack);
+ if (NT_SUCCESS(Status) && IoStatusBlock.Information)
+ {
+ InformationString = (PWSTR)IoStatusBlock.Information;
+ DPRINT("LocationInformation: %S\n", InformationString);
+ RtlInitUnicodeString(&ValueName, L"LocationInformation");
+ Status = ZwSetValueKey(InstanceKey,
+ &ValueName,
+ 0,
+ REG_SZ,
+ InformationString,
+ ((ULONG)wcslen(InformationString) + 1) * sizeof(WCHAR));
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("ZwSetValueKey() failed (Status %lx)\n", Status);
+ }
- DeviceNode->ChildBusNumber = BusInformation->BusNumber;
- DeviceNode->ChildInterfaceType = BusInformation->LegacyBusType;
- DeviceNode->ChildBusTypeIndex = IopGetBusTypeGuidIndex(&BusInformation->BusTypeGuid);
- ExFreePool(BusInformation);
- }
- else
- {
- DPRINT("IopInitiatePnpIrp() failed (Status %x) or IoStatusBlock.Information=NULL\n", Status);
+ ExFreePoolWithTag(InformationString, 0);
+ }
+ else
+ {
+ DPRINT("IopInitiatePnpIrp() failed (Status %x) or IoStatusBlock.Information=NULL\n", Status);
+ }
- DeviceNode->ChildBusNumber = 0xFFFFFFF0;
- DeviceNode->ChildInterfaceType = InterfaceTypeUndefined;
- DeviceNode->ChildBusTypeIndex = -1;
- }
+ DPRINT("Sending IRP_MN_QUERY_BUS_INFORMATION to device stack\n");
- DPRINT("Sending IRP_MN_QUERY_RESOURCES to device stack\n");
+ Status = IopInitiatePnpIrp(DeviceNode->PhysicalDeviceObject,
+ &IoStatusBlock,
+ IRP_MN_QUERY_BUS_INFORMATION,
+ NULL);
+ if (NT_SUCCESS(Status) && IoStatusBlock.Information)
+ {
+ PPNP_BUS_INFORMATION BusInformation = (PPNP_BUS_INFORMATION)IoStatusBlock.Information;
- Status = IopInitiatePnpIrp(
- DeviceNode->PhysicalDeviceObject,
- &IoStatusBlock,
- IRP_MN_QUERY_RESOURCES,
- NULL);
- if (NT_SUCCESS(Status) && IoStatusBlock.Information)
- {
- DeviceNode->BootResources =
- (PCM_RESOURCE_LIST)IoStatusBlock.Information;
- IopDeviceNodeSetFlag(DeviceNode, DNF_HAS_BOOT_CONFIG);
- }
- else
- {
- DPRINT("IopInitiatePnpIrp() failed (Status %x) or IoStatusBlock.Information=NULL\n", Status);
- DeviceNode->BootResources = NULL;
- }
+ DeviceNode->ChildBusNumber = BusInformation->BusNumber;
+ DeviceNode->ChildInterfaceType = BusInformation->LegacyBusType;
+ DeviceNode->ChildBusTypeIndex = IopGetBusTypeGuidIndex(&BusInformation->BusTypeGuid);
+ ExFreePoolWithTag(BusInformation, 0);
+ }
+ else
+ {
+ DPRINT("IopInitiatePnpIrp() failed (Status %x) or IoStatusBlock.Information=NULL\n", Status);
- DPRINT("Sending IRP_MN_QUERY_RESOURCE_REQUIREMENTS to device stack\n");
+ DeviceNode->ChildBusNumber = 0xFFFFFFF0;
+ DeviceNode->ChildInterfaceType = InterfaceTypeUndefined;
+ DeviceNode->ChildBusTypeIndex = -1;
+ }
- Status = IopInitiatePnpIrp(
- DeviceNode->PhysicalDeviceObject,
- &IoStatusBlock,
- IRP_MN_QUERY_RESOURCE_REQUIREMENTS,
- NULL);
- if (NT_SUCCESS(Status))
- {
- DeviceNode->ResourceRequirements =
- (PIO_RESOURCE_REQUIREMENTS_LIST)IoStatusBlock.Information;
- }
- else
- {
- DPRINT("IopInitiatePnpIrp() failed (Status %08lx)\n", Status);
- DeviceNode->ResourceRequirements = NULL;
- }
+ DPRINT("Sending IRP_MN_QUERY_RESOURCES to device stack\n");
- if (InstanceKey != NULL)
- {
- IopSetDeviceInstanceData(InstanceKey, DeviceNode);
- }
+ Status = IopInitiatePnpIrp(DeviceNode->PhysicalDeviceObject,
+ &IoStatusBlock,
+ IRP_MN_QUERY_RESOURCES,
+ NULL);
+ if (NT_SUCCESS(Status) && IoStatusBlock.Information)
+ {
+ DeviceNode->BootResources = (PCM_RESOURCE_LIST)IoStatusBlock.Information;
+ IopDeviceNodeSetFlag(DeviceNode, DNF_HAS_BOOT_CONFIG);
+ }
+ else
+ {
+ DPRINT("IopInitiatePnpIrp() failed (Status %x) or IoStatusBlock.Information=NULL\n", Status);
+ DeviceNode->BootResources = NULL;
+ }
- ZwClose(InstanceKey);
+ DPRINT("Sending IRP_MN_QUERY_RESOURCE_REQUIREMENTS to device stack\n");
- IopDeviceNodeSetFlag(DeviceNode, DNF_PROCESSED);
+ Status = IopInitiatePnpIrp(DeviceNode->PhysicalDeviceObject,
+ &IoStatusBlock,
+ IRP_MN_QUERY_RESOURCE_REQUIREMENTS,
+ NULL);
+ if (NT_SUCCESS(Status))
+ {
+ DeviceNode->ResourceRequirements = (PIO_RESOURCE_REQUIREMENTS_LIST)IoStatusBlock.Information;
+ }
+ else
+ {
+ DPRINT("IopInitiatePnpIrp() failed (Status %08lx)\n", Status);
+ DeviceNode->ResourceRequirements = NULL;
+ }
- if (!IopDeviceNodeHasFlag(DeviceNode, DNF_LEGACY_DRIVER))
- {
- /* Report the device to the user-mode pnp manager */
- IopQueueTargetDeviceEvent(&GUID_DEVICE_ENUMERATED,
- &DeviceNode->InstancePath);
- }
+ if (InstanceKey != NULL)
+ {
+ IopSetDeviceInstanceData(InstanceKey, DeviceNode);
+ }
- return STATUS_SUCCESS;
+ ZwClose(InstanceKey);
+
+ IopDeviceNodeSetFlag(DeviceNode, DNF_PROCESSED);
+
+ if (!IopDeviceNodeHasFlag(DeviceNode, DNF_LEGACY_DRIVER))
+ {
+ /* Report the device to the user-mode pnp manager */
+ IopQueueTargetDeviceEvent(&GUID_DEVICE_ENUMERATED,
+ &DeviceNode->InstancePath);
+ }
+
+ return STATUS_SUCCESS;
}
static
DPRINT("IopActionInitChildServices(%p, %p)\n", DeviceNode, Context);
- ParentDeviceNode = (PDEVICE_NODE)Context;
+ ParentDeviceNode = Context;
/*
* We are called for the parent too, but we don't need to do special
PLDR_DATA_TABLE_ENTRY ModuleObject;
PDRIVER_OBJECT DriverObject;
+ KeEnterCriticalRegion();
+ ExAcquireResourceExclusiveLite(&IopDriverLoadResource, TRUE);
/* Get existing DriverObject pointer (in case the driver has
already been loaded and initialized) */
Status = IopGetDriverObject(
if (!BootDrivers) DeviceNode->Problem = CM_PROB_DRIVER_FAILED_LOAD;
}
}
+ ExReleaseResourceLite(&IopDriverLoadResource);
+ KeLeaveCriticalRegion();
/* Driver is loaded and initialized at this point */
if (NT_SUCCESS(Status))
DPRINT1("ZwOpenKey(%wZ) failed with status 0x%08lx\n", &KeyPathU, Status);
}
- DPRINT1("Firmware mapper is %s\n", KeyValue != 0 ? "disabled" : "enabled");
+ DPRINT("Firmware mapper is %s\n", KeyValue != 0 ? "disabled" : "enabled");
return (KeyValue != 0) ? TRUE : FALSE;
}
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,
/* 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 = (USHORT)(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,
Recursing = FALSE;
continue;
}
-
+
/* Now see if there's more parents to create */
p1 = p + 1;
if ((p == pp) || (p1 == pp))
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))
{
*Handle = HandleArray[i];
if (Disposition) *Disposition = KeyDisposition;
}
-
+
/* Return the success state */
return Status;
}
{
PDEVICE_NODE DeviceNode;
PAGED_CODE();
-
+
/* Allocate it */
- DeviceNode = ExAllocatePoolWithTag(NonPagedPool, sizeof(DEVICE_NODE), 'donD');
+ DeviceNode = ExAllocatePoolWithTag(NonPagedPool, sizeof(DEVICE_NODE), TAG_IO_DEVNODE);
if (!DeviceNode) return DeviceNode;
-
+
/* Statistics */
InterlockedIncrement(&IopNumberDeviceNodes);
-
+
/* Set it up */
RtlZeroMemory(DeviceNode, sizeof(DEVICE_NODE));
DeviceNode->InterfaceType = InterfaceTypeUndefined;
InitializeListHead(&DeviceNode->TargetDeviceNotify);
InitializeListHead(&DeviceNode->DockInfo.ListEntry);
InitializeListHead(&DeviceNode->PendedSetInterfaceState);
-
+
/* Check if there is a PDO */
if (PhysicalDeviceObject)
{
((PEXTENDED_DEVOBJ_EXTENSION)PhysicalDeviceObject->DeviceObjectExtension)->DeviceNode = DeviceNode;
PhysicalDeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
}
-
+
/* Return the node */
return DeviceNode;
}
/* Acquire the lock */
ExAcquireFastMutex(&PnpBusTypeGuidList->Lock);
-
+
/* Validate size */
if (Index < PnpBusTypeGuidList->GuidCount)
{
/* Failure path */
Status = STATUS_OBJECT_NAME_NOT_FOUND;
}
-
+
/* Release lock and return status */
ExReleaseFastMutex(&PnpBusTypeGuidList->Lock);
return Status;
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))
/* Fail */
Status = STATUS_INVALID_DEVICE_REQUEST;
}
-
+
/* Close the handle and return status */
ZwClose(KeyHandle);
return Status;
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++)
/* 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++)
{
/* Start with the minimum size possible */
EntrySize = sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR);
-
+
/* Check if there is extra data */
if (PartialDescriptor->Type == CmResourceTypeDeviceSpecific)
{
/* Add that data */
EntrySize += PartialDescriptor->u.DeviceSpecificData.DataSize;
}
-
+
/* The size of partial descriptors is bigger */
PartialSize += EntrySize;
-
+
/* Go to the next partial descriptor */
PartialDescriptor = (PVOID)((ULONG_PTR)PartialDescriptor + EntrySize);
}
-
+
/* 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;
}
/* 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((ULONG)(EnumeratorNameEnd - DeviceInstanceName) * sizeof(WCHAR),
DeviceInstanceName);
-
+
case DevicePropertyAddress:
/* Query the device caps */
/* 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
*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,
/* 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);
PIP_UNIMPLEMENTED();
case DevicePropertyRemovalPolicy:
PIP_UNIMPLEMENTED();
+ break;
case DevicePropertyInstallState:
- PIP_UNIMPLEMENTED();
+ PIP_REGISTRY_DATA(REGSTR_VAL_CONFIGFLAGS, REG_DWORD);
+ break;
case DevicePropertyResourceRequirements:
PIP_UNIMPLEMENTED();
case DevicePropertyAllocatedResources:
default:
return STATUS_INVALID_PARAMETER_2;
}
-
+
/* 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,
/* Terminate the string */
((PWCHAR)PropertyBuffer)[ReturnLength / sizeof(WCHAR)] = UNICODE_NULL;
}
-
+
/* This is the success path */
Status = STATUS_SUCCESS;
}
Status = STATUS_BUFFER_TOO_SMALL;
}
}
-
+
/* Free any allocation we may have made, and return the status code */
if (ObjectNameInfo) ExFreePool(ObjectNameInfo);
return Status;
ULONG PnPFlags;
NTSTATUS Status;
IO_STATUS_BLOCK IoStatusBlock;
-
+
RtlZeroMemory(&Stack, sizeof(IO_STACK_LOCATION));
Stack.MajorFunction = IRP_MJ_PNP;
Stack.MinorFunction = IRP_MN_QUERY_PNP_DEVICE_STATE;
-
+
Status = IopSynchronousCall(PhysicalDeviceObject, &Stack, (PVOID*)&PnPFlags);
if (!NT_SUCCESS(Status))
{
/* Send surprise removal */
IopSendSurpriseRemoval(PhysicalDeviceObject);
-
+
/* Tell the user-mode PnP manager that a device was removed */
IopQueueTargetDeviceEvent(&GUID_DEVICE_SURPRISE_REMOVAL,
&DeviceNode->InstancePath);
-
+
IopSendRemoveDevice(PhysicalDeviceObject);
}
else if ((PnPFlags & PNP_DEVICE_FAILED) && (PnPFlags & PNP_DEVICE_RESOURCE_REQUIREMENTS_CHANGED))
PnPFlags &= ~PNP_DEVICE_RESOURCE_REQUIREMENTS_CHANGED;
}
}
-
+
/* Resource rebalance */
if (PnPFlags & PNP_DEVICE_RESOURCE_REQUIREMENTS_CHANGED)
{
DPRINT("Sending IRP_MN_QUERY_RESOURCES to device stack\n");
-
+
Status = IopInitiatePnpIrp(PhysicalDeviceObject,
&IoStatusBlock,
IRP_MN_QUERY_RESOURCES,
DPRINT("IopInitiatePnpIrp() failed (Status %x) or IoStatusBlock.Information=NULL\n", Status);
DeviceNode->BootResources = NULL;
}
-
+
DPRINT("Sending IRP_MN_QUERY_RESOURCE_REQUIREMENTS to device stack\n");
-
+
Status = IopInitiatePnpIrp(PhysicalDeviceObject,
&IoStatusBlock,
IRP_MN_QUERY_RESOURCE_REQUIREMENTS,
DPRINT("IopInitiatePnpIrp() failed (Status %08lx)\n", Status);
DeviceNode->ResourceRequirements = NULL;
}
-
+
/* IRP_MN_FILTER_RESOURCE_REQUIREMENTS is called indirectly by IopStartDevice */
if (IopStartDevice(DeviceNode) != STATUS_SUCCESS)
{
*/
RtlInitUnicodeString(&KeyName, DeviceParametersKeyName);
- InitializeObjectAttributes(&ObjectAttributes, &KeyName,
- OBJ_CASE_INSENSITIVE, *DevInstRegKey, NULL);
+ InitializeObjectAttributes(&ObjectAttributes,
+ &KeyName,
+ OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
+ *DevInstRegKey,
+ NULL);
Status = ZwCreateKey(DevInstRegKey, DesiredAccess, &ObjectAttributes,
0, NULL, ExpInTextModeSetup ? REG_OPTION_VOLATILE : 0, NULL);
ZwClose(ObjectAttributes.RootDirectory);
PDEVICE_NODE ChildDeviceNode, NextDeviceNode, FailedRemoveDevice;
NTSTATUS Status;
KIRQL OldIrql;
-
+
KeAcquireSpinLock(&IopDeviceTreeLock, &OldIrql);
ChildDeviceNode = ParentDeviceNode->Child;
while (ChildDeviceNode != NULL)
{
NextDeviceNode = ChildDeviceNode->Sibling;
KeReleaseSpinLock(&IopDeviceTreeLock, OldIrql);
-
+
Status = IopPrepareDeviceForRemoval(ChildDeviceNode->PhysicalDeviceObject, Force);
if (!NT_SUCCESS(Status))
{
FailedRemoveDevice = ChildDeviceNode;
goto cleanup;
}
-
+
KeAcquireSpinLock(&IopDeviceTreeLock, &OldIrql);
ChildDeviceNode = NextDeviceNode;
}
KeReleaseSpinLock(&IopDeviceTreeLock, OldIrql);
-
+
return STATUS_SUCCESS;
-
+
cleanup:
KeAcquireSpinLock(&IopDeviceTreeLock, &OldIrql);
ChildDeviceNode = ParentDeviceNode->Child;
{
NextDeviceNode = ChildDeviceNode->Sibling;
KeReleaseSpinLock(&IopDeviceTreeLock, OldIrql);
-
+
IopCancelPrepareDeviceForRemoval(ChildDeviceNode->PhysicalDeviceObject);
-
+
/* IRP_MN_CANCEL_REMOVE_DEVICE is also sent to the device
* that failed the IRP_MN_QUERY_REMOVE_DEVICE request */
if (ChildDeviceNode == FailedRemoveDevice)
return Status;
-
+
ChildDeviceNode = NextDeviceNode;
-
+
KeAcquireSpinLock(&IopDeviceTreeLock, &OldIrql);
}
KeReleaseSpinLock(&IopDeviceTreeLock, OldIrql);
-
+
return Status;
}
{
PDEVICE_NODE ChildDeviceNode, NextDeviceNode;
KIRQL OldIrql;
-
+
KeAcquireSpinLock(&IopDeviceTreeLock, &OldIrql);
ChildDeviceNode = ParentDeviceNode->Child;
while (ChildDeviceNode != NULL)
{
NextDeviceNode = ChildDeviceNode->Sibling;
KeReleaseSpinLock(&IopDeviceTreeLock, OldIrql);
-
+
IopSendRemoveDevice(ChildDeviceNode->PhysicalDeviceObject);
-
+
ChildDeviceNode = NextDeviceNode;
-
+
KeAcquireSpinLock(&IopDeviceTreeLock, &OldIrql);
}
KeReleaseSpinLock(&IopDeviceTreeLock, OldIrql);
{
PDEVICE_NODE ChildDeviceNode, NextDeviceNode;
KIRQL OldIrql;
-
+
KeAcquireSpinLock(&IopDeviceTreeLock, &OldIrql);
ChildDeviceNode = ParentDeviceNode->Child;
while (ChildDeviceNode != NULL)
{
NextDeviceNode = ChildDeviceNode->Sibling;
KeReleaseSpinLock(&IopDeviceTreeLock, OldIrql);
-
+
IopCancelPrepareDeviceForRemoval(ChildDeviceNode->PhysicalDeviceObject);
-
+
ChildDeviceNode = NextDeviceNode;
-
+
KeAcquireSpinLock(&IopDeviceTreeLock, &OldIrql);
}
KeReleaseSpinLock(&IopDeviceTreeLock, OldIrql);
{
/* This function DOES NOT dereference the device objects on SUCCESS
* but it DOES dereference device objects on FAILURE */
-
+
ULONG i, j;
NTSTATUS Status;
-
+
for (i = 0; i < DeviceRelations->Count; i++)
{
Status = IopPrepareDeviceForRemoval(DeviceRelations->Objects[i], Force);
goto cleanup;
}
}
-
+
return STATUS_SUCCESS;
-
+
cleanup:
/* IRP_MN_CANCEL_REMOVE_DEVICE is also sent to the device
* that failed the IRP_MN_QUERY_REMOVE_DEVICE request */
DeviceRelations->Objects[i] = NULL;
}
ExFreePool(DeviceRelations);
-
+
return Status;
}
IopSendRemoveDeviceRelations(PDEVICE_RELATIONS DeviceRelations)
{
/* This function DOES dereference the device objects in all cases */
-
+
ULONG i;
-
+
for (i = 0; i < DeviceRelations->Count; i++)
{
IopSendRemoveDevice(DeviceRelations->Objects[i]);
- ObDereferenceObject(DeviceRelations->Objects[i]);
DeviceRelations->Objects[i] = NULL;
}
-
+
ExFreePool(DeviceRelations);
}
IopCancelRemoveDeviceRelations(PDEVICE_RELATIONS DeviceRelations)
{
/* This function DOES dereference the device objects in all cases */
-
+
ULONG i;
-
+
for (i = 0; i < DeviceRelations->Count; i++)
{
IopCancelPrepareDeviceForRemoval(DeviceRelations->Objects[i]);
ObDereferenceObject(DeviceRelations->Objects[i]);
DeviceRelations->Objects[i] = NULL;
}
-
+
ExFreePool(DeviceRelations);
}
IO_STATUS_BLOCK IoStatusBlock;
PDEVICE_RELATIONS DeviceRelations;
NTSTATUS Status;
-
+
IopCancelRemoveDevice(DeviceObject);
-
+
Stack.Parameters.QueryDeviceRelations.Type = RemovalRelations;
-
+
Status = IopInitiatePnpIrp(DeviceObject,
&IoStatusBlock,
IRP_MN_QUERY_DEVICE_RELATIONS,
{
DeviceRelations = (PDEVICE_RELATIONS)IoStatusBlock.Information;
}
-
+
if (DeviceRelations)
IopCancelRemoveDeviceRelations(DeviceRelations);
}
DPRINT1("Removal not allowed for %wZ\n", &DeviceNode->InstancePath);
return STATUS_UNSUCCESSFUL;
}
-
+
if (!Force && IopQueryRemoveDevice(DeviceObject) != STATUS_SUCCESS)
{
DPRINT1("Removal vetoed by failing the query remove request\n");
-
+
IopCancelRemoveDevice(DeviceObject);
-
+
return STATUS_UNSUCCESSFUL;
}
-
+
Stack.Parameters.QueryDeviceRelations.Type = RemovalRelations;
Status = IopInitiatePnpIrp(DeviceObject,
return Status;
}
- DeviceNode->Flags |= DNF_WILL_BE_REMOVED;
- DeviceNode->Problem = CM_PROB_WILL_BE_REMOVED;
if (DeviceRelations)
IopSendRemoveDeviceRelations(DeviceRelations);
IopSendRemoveChildDevices(DeviceNode);
-
+
return STATUS_SUCCESS;
}
IO_STACK_LOCATION Stack;
DEVICE_CAPABILITIES Capabilities;
NTSTATUS Status;
-
+
IopQueueTargetDeviceEvent(&GUID_DEVICE_KERNEL_INITIATED_EJECT,
&DeviceNode->InstancePath);
-
+
if (IopQueryDeviceCapabilities(DeviceNode, &Capabilities) != STATUS_SUCCESS)
{
goto cleanup;
}
-
+
Stack.Parameters.QueryDeviceRelations.Type = EjectionRelations;
-
+
Status = IopInitiatePnpIrp(PhysicalDeviceObject,
&IoStatusBlock,
IRP_MN_QUERY_DEVICE_RELATIONS,
{
DeviceRelations = (PDEVICE_RELATIONS)IoStatusBlock.Information;
}
-
+
if (DeviceRelations)
{
Status = IopQueryRemoveDeviceRelations(DeviceRelations, FALSE);
if (!NT_SUCCESS(Status))
goto cleanup;
}
-
+
Status = IopQueryRemoveChildDevices(DeviceNode, FALSE);
if (!NT_SUCCESS(Status))
{
IopCancelRemoveDeviceRelations(DeviceRelations);
goto cleanup;
}
-
+
if (IopPrepareDeviceForRemoval(PhysicalDeviceObject, FALSE) != STATUS_SUCCESS)
{
if (DeviceRelations)
IopCancelRemoveChildDevices(DeviceNode);
goto cleanup;
}
-
+
if (DeviceRelations)
IopSendRemoveDeviceRelations(DeviceRelations);
IopSendRemoveChildDevices(DeviceNode);
{
DeviceNode->Flags |= DNF_DISABLED;
}
-
+
IopQueueTargetDeviceEvent(&GUID_DEVICE_EJECT,
&DeviceNode->InstancePath);
-
+
return;
-
+
cleanup:
IopQueueTargetDeviceEvent(&GUID_DEVICE_EJECT_VETOED,
&DeviceNode->InstancePath);
IN PDEVICE_OBJECT DeviceObject,
IN DEVICE_RELATION_TYPE Type)
{
- PIO_WORKITEM WorkItem;
PINVALIDATE_DEVICE_RELATION_DATA Data;
+ KIRQL OldIrql;
Data = ExAllocatePool(NonPagedPool, sizeof(INVALIDATE_DEVICE_RELATION_DATA));
if (!Data)
return;
- WorkItem = IoAllocateWorkItem(DeviceObject);
- if (!WorkItem)
- {
- ExFreePool(Data);
- return;
- }
ObReferenceObject(DeviceObject);
Data->DeviceObject = DeviceObject;
Data->Type = Type;
- Data->WorkItem = WorkItem;
- IoQueueWorkItem(
- WorkItem,
- IopAsynchronousInvalidateDeviceRelations,
- DelayedWorkQueue,
- Data);
+ KeAcquireSpinLock(&IopDeviceRelationsSpinLock, &OldIrql);
+ InsertTailList(&IopDeviceRelationsRequestList, &Data->RequestListEntry);
+ if (IopDeviceRelationsRequestInProgress)
+ {
+ KeReleaseSpinLock(&IopDeviceRelationsSpinLock, OldIrql);
+ return;
+ }
+ IopDeviceRelationsRequestInProgress = TRUE;
+ KeReleaseSpinLock(&IopDeviceRelationsSpinLock, OldIrql);
+
+ ExInitializeWorkItem(&IopDeviceRelationsWorkItem,
+ IopDeviceRelationsWorker,
+ NULL);
+ ExQueueWorkItem(&IopDeviceRelationsWorkItem,
+ DelayedWorkQueue);
}
/*
IN DEVICE_RELATION_TYPE Type)
{
PAGED_CODE();
-
+
switch (Type)
{
case BusRelations:
projects / reactos.git / blobdiff