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https://github.com/reactos/reactos.git
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[NTOS:IO] Move device node functions from pnpmgr/pnpmgr.c to pnpmgr/devnode.c
Add SAL2 annotations to functions while moving Convert IopCreateDeviceNode description to a Doxygen format
This commit is contained in:
Victor Perevertkin
parent
ab2b7a6bc6
commit
b5815efe83
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@ -762,6 +762,13 @@ NTSTATUS
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IopTraverseDeviceTree(
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PDEVICETREE_TRAVERSE_CONTEXT Context);
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NTSTATUS
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NTAPI
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IopCreateDeviceKeyPath(
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IN PCUNICODE_STRING RegistryPath,
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IN ULONG CreateOptions,
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OUT PHANDLE Handle);
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//
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// PnP Routines
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//
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@ -1391,7 +1398,7 @@ IoSetIoCompletion(
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IN PVOID ApcContext,
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IN NTSTATUS IoStatus,
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IN ULONG_PTR IoStatusInformation,
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IN BOOLEAN Quota
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IN BOOLEAN Quota
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);
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//
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400
ntoskrnl/io/pnpmgr/devnode.c
Normal file
400
ntoskrnl/io/pnpmgr/devnode.c
Normal file
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@ -0,0 +1,400 @@
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/*
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* PROJECT: ReactOS Kernel
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* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
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* PURPOSE: PnP manager device tree functions
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* COPYRIGHT: Casper S. Hornstrup (chorns@users.sourceforge.net)
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* 2007 Hervé Poussineau (hpoussin@reactos.org)
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* 2010-2012 Cameron Gutman (cameron.gutman@reactos.org)
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*/
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/* INCLUDES ******************************************************************/
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#include <ntoskrnl.h>
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#define NDEBUG
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#include <debug.h>
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/* GLOBALS *******************************************************************/
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PDEVICE_NODE IopRootDeviceNode;
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KSPIN_LOCK IopDeviceTreeLock;
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LONG IopNumberDeviceNodes;
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/* FUNCTIONS *****************************************************************/
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PDEVICE_NODE
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FASTCALL
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IopGetDeviceNode(
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_In_ PDEVICE_OBJECT DeviceObject)
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{
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return ((PEXTENDED_DEVOBJ_EXTENSION)DeviceObject->DeviceObjectExtension)->DeviceNode;
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}
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PDEVICE_NODE
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NTAPI
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PipAllocateDeviceNode(
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_In_opt_ PDEVICE_OBJECT PhysicalDeviceObject)
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{
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PDEVICE_NODE DeviceNode;
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PAGED_CODE();
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/* Allocate it */
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DeviceNode = ExAllocatePoolWithTag(NonPagedPool, sizeof(DEVICE_NODE), TAG_IO_DEVNODE);
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if (!DeviceNode) return DeviceNode;
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/* Statistics */
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InterlockedIncrement(&IopNumberDeviceNodes);
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/* Set it up */
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RtlZeroMemory(DeviceNode, sizeof(DEVICE_NODE));
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DeviceNode->InterfaceType = InterfaceTypeUndefined;
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DeviceNode->BusNumber = -1;
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DeviceNode->ChildInterfaceType = InterfaceTypeUndefined;
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DeviceNode->ChildBusNumber = -1;
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DeviceNode->ChildBusTypeIndex = -1;
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// KeInitializeEvent(&DeviceNode->EnumerationMutex, SynchronizationEvent, TRUE);
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InitializeListHead(&DeviceNode->DeviceArbiterList);
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InitializeListHead(&DeviceNode->DeviceTranslatorList);
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InitializeListHead(&DeviceNode->TargetDeviceNotify);
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InitializeListHead(&DeviceNode->DockInfo.ListEntry);
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InitializeListHead(&DeviceNode->PendedSetInterfaceState);
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/* Check if there is a PDO */
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if (PhysicalDeviceObject)
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{
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/* Link it and remove the init flag */
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DeviceNode->PhysicalDeviceObject = PhysicalDeviceObject;
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((PEXTENDED_DEVOBJ_EXTENSION)PhysicalDeviceObject->DeviceObjectExtension)->DeviceNode = DeviceNode;
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PhysicalDeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
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}
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/* Return the node */
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return DeviceNode;
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}
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/**
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* @brief Creates a device node
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*
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* @param[in] ParentNode Pointer to parent device node
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* @param[in] PhysicalDeviceObject Pointer to PDO for device object. Pass NULL to have
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* the root device node create one (eg. for legacy drivers)
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* @param[in] ServiceName The service (driver) name for a node. Pass NULL
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* to set UNKNOWN as a service
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* @param[out] DeviceNode Pointer to storage for created device node
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*
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* @return Status, indicating the result of an operation
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*/
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NTSTATUS
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IopCreateDeviceNode(
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_In_ PDEVICE_NODE ParentNode,
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_In_opt_ PDEVICE_OBJECT PhysicalDeviceObject,
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_In_opt_ PUNICODE_STRING ServiceName,
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_Out_ PDEVICE_NODE *DeviceNode)
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{
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PDEVICE_NODE Node;
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NTSTATUS Status;
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KIRQL OldIrql;
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UNICODE_STRING FullServiceName;
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UNICODE_STRING LegacyPrefix = RTL_CONSTANT_STRING(L"LEGACY_");
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UNICODE_STRING UnknownDeviceName = RTL_CONSTANT_STRING(L"UNKNOWN");
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UNICODE_STRING KeyName, ClassName;
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PUNICODE_STRING ServiceName1;
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ULONG LegacyValue;
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UNICODE_STRING ClassGUID;
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HANDLE InstanceHandle;
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DPRINT("ParentNode 0x%p PhysicalDeviceObject 0x%p ServiceName %wZ\n",
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ParentNode, PhysicalDeviceObject, ServiceName);
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Node = ExAllocatePoolWithTag(NonPagedPool, sizeof(DEVICE_NODE), TAG_IO_DEVNODE);
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if (!Node)
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{
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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RtlZeroMemory(Node, sizeof(DEVICE_NODE));
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if (!ServiceName)
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ServiceName1 = &UnknownDeviceName;
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else
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ServiceName1 = ServiceName;
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if (!PhysicalDeviceObject)
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{
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FullServiceName.MaximumLength = LegacyPrefix.Length + ServiceName1->Length + sizeof(UNICODE_NULL);
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FullServiceName.Length = 0;
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FullServiceName.Buffer = ExAllocatePool(PagedPool, FullServiceName.MaximumLength);
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if (!FullServiceName.Buffer)
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{
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ExFreePoolWithTag(Node, TAG_IO_DEVNODE);
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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RtlAppendUnicodeStringToString(&FullServiceName, &LegacyPrefix);
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RtlAppendUnicodeStringToString(&FullServiceName, ServiceName1);
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RtlUpcaseUnicodeString(&FullServiceName, &FullServiceName, FALSE);
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Status = PnpRootCreateDevice(&FullServiceName, NULL, &PhysicalDeviceObject, &Node->InstancePath);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("PnpRootCreateDevice() failed with status 0x%08X\n", Status);
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ExFreePool(FullServiceName.Buffer);
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ExFreePoolWithTag(Node, TAG_IO_DEVNODE);
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return Status;
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}
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/* Create the device key for legacy drivers */
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Status = IopCreateDeviceKeyPath(&Node->InstancePath, REG_OPTION_VOLATILE, &InstanceHandle);
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if (!NT_SUCCESS(Status))
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{
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ExFreePool(FullServiceName.Buffer);
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ExFreePoolWithTag(Node, TAG_IO_DEVNODE);
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return Status;
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}
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Node->ServiceName.MaximumLength = ServiceName1->Length + sizeof(UNICODE_NULL);
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Node->ServiceName.Length = 0;
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Node->ServiceName.Buffer = ExAllocatePool(PagedPool, Node->ServiceName.MaximumLength);
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if (!Node->ServiceName.Buffer)
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{
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ZwClose(InstanceHandle);
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ExFreePool(FullServiceName.Buffer);
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ExFreePoolWithTag(Node, TAG_IO_DEVNODE);
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return Status;
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}
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RtlCopyUnicodeString(&Node->ServiceName, ServiceName1);
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if (ServiceName)
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{
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RtlInitUnicodeString(&KeyName, L"Service");
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Status = ZwSetValueKey(InstanceHandle, &KeyName, 0, REG_SZ, ServiceName->Buffer, ServiceName->Length + sizeof(UNICODE_NULL));
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}
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if (NT_SUCCESS(Status))
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{
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RtlInitUnicodeString(&KeyName, L"Legacy");
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LegacyValue = 1;
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Status = ZwSetValueKey(InstanceHandle, &KeyName, 0, REG_DWORD, &LegacyValue, sizeof(LegacyValue));
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RtlInitUnicodeString(&KeyName, L"ConfigFlags");
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LegacyValue = 0;
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ZwSetValueKey(InstanceHandle, &KeyName, 0, REG_DWORD, &LegacyValue, sizeof(LegacyValue));
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if (NT_SUCCESS(Status))
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{
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RtlInitUnicodeString(&KeyName, L"Class");
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RtlInitUnicodeString(&ClassName, L"LegacyDriver");
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Status = ZwSetValueKey(InstanceHandle, &KeyName, 0, REG_SZ, ClassName.Buffer, ClassName.Length + sizeof(UNICODE_NULL));
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if (NT_SUCCESS(Status))
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{
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RtlInitUnicodeString(&KeyName, L"ClassGUID");
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RtlInitUnicodeString(&ClassGUID, L"{8ECC055D-047F-11D1-A537-0000F8753ED1}");
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Status = ZwSetValueKey(InstanceHandle, &KeyName, 0, REG_SZ, ClassGUID.Buffer, ClassGUID.Length + sizeof(UNICODE_NULL));
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if (NT_SUCCESS(Status))
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{
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// FIXME: Retrieve the real "description" by looking at the "DisplayName" string
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// of the corresponding CurrentControlSet\Services\xxx entry for this driver.
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RtlInitUnicodeString(&KeyName, L"DeviceDesc");
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Status = ZwSetValueKey(InstanceHandle, &KeyName, 0, REG_SZ, ServiceName1->Buffer, ServiceName1->Length + sizeof(UNICODE_NULL));
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}
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}
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}
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}
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ZwClose(InstanceHandle);
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ExFreePool(FullServiceName.Buffer);
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if (!NT_SUCCESS(Status))
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{
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ExFreePool(Node->ServiceName.Buffer);
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ExFreePoolWithTag(Node, TAG_IO_DEVNODE);
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return Status;
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}
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IopDeviceNodeSetFlag(Node, DNF_LEGACY_DRIVER);
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IopDeviceNodeSetFlag(Node, DNF_PROCESSED);
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IopDeviceNodeSetFlag(Node, DNF_ADDED);
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IopDeviceNodeSetFlag(Node, DNF_STARTED);
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}
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Node->PhysicalDeviceObject = PhysicalDeviceObject;
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((PEXTENDED_DEVOBJ_EXTENSION)PhysicalDeviceObject->DeviceObjectExtension)->DeviceNode = Node;
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if (ParentNode)
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{
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KeAcquireSpinLock(&IopDeviceTreeLock, &OldIrql);
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Node->Parent = ParentNode;
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Node->Sibling = NULL;
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if (ParentNode->LastChild == NULL)
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{
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ParentNode->Child = Node;
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ParentNode->LastChild = Node;
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}
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else
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{
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ParentNode->LastChild->Sibling = Node;
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ParentNode->LastChild = Node;
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}
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KeReleaseSpinLock(&IopDeviceTreeLock, OldIrql);
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Node->Level = ParentNode->Level + 1;
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}
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PhysicalDeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
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*DeviceNode = Node;
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return STATUS_SUCCESS;
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}
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NTSTATUS
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IopFreeDeviceNode(
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_In_ PDEVICE_NODE DeviceNode)
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{
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KIRQL OldIrql;
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PDEVICE_NODE PrevSibling = NULL;
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/* All children must be deleted before a parent is deleted */
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ASSERT(!DeviceNode->Child);
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ASSERT(DeviceNode->PhysicalDeviceObject);
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KeAcquireSpinLock(&IopDeviceTreeLock, &OldIrql);
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/* Get previous sibling */
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if (DeviceNode->Parent && DeviceNode->Parent->Child != DeviceNode)
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{
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PrevSibling = DeviceNode->Parent->Child;
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while (PrevSibling->Sibling != DeviceNode)
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PrevSibling = PrevSibling->Sibling;
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}
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/* Unlink from parent if it exists */
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if (DeviceNode->Parent)
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{
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if (DeviceNode->Parent->LastChild == DeviceNode)
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{
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DeviceNode->Parent->LastChild = PrevSibling;
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if (PrevSibling)
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PrevSibling->Sibling = NULL;
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}
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if (DeviceNode->Parent->Child == DeviceNode)
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DeviceNode->Parent->Child = DeviceNode->Sibling;
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}
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/* Unlink from sibling list */
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if (PrevSibling)
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PrevSibling->Sibling = DeviceNode->Sibling;
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KeReleaseSpinLock(&IopDeviceTreeLock, OldIrql);
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RtlFreeUnicodeString(&DeviceNode->InstancePath);
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RtlFreeUnicodeString(&DeviceNode->ServiceName);
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if (DeviceNode->ResourceList)
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{
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ExFreePool(DeviceNode->ResourceList);
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}
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if (DeviceNode->ResourceListTranslated)
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{
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ExFreePool(DeviceNode->ResourceListTranslated);
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}
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if (DeviceNode->ResourceRequirements)
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{
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ExFreePool(DeviceNode->ResourceRequirements);
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}
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if (DeviceNode->BootResources)
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{
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ExFreePool(DeviceNode->BootResources);
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}
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((PEXTENDED_DEVOBJ_EXTENSION)DeviceNode->PhysicalDeviceObject->DeviceObjectExtension)->DeviceNode = NULL;
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ExFreePoolWithTag(DeviceNode, TAG_IO_DEVNODE);
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return STATUS_SUCCESS;
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}
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static
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NTSTATUS
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IopTraverseDeviceTreeNode(
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_In_ PDEVICETREE_TRAVERSE_CONTEXT Context)
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{
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PDEVICE_NODE ParentDeviceNode;
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PDEVICE_NODE ChildDeviceNode;
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PDEVICE_NODE NextDeviceNode;
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NTSTATUS Status;
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/* Copy context data so we don't overwrite it in subsequent calls to this function */
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ParentDeviceNode = Context->DeviceNode;
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/* HACK: Keep a reference to the PDO so we can keep traversing the tree
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* if the device is deleted. In a perfect world, children would have to be
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* deleted before their parents, and we'd restart the traversal after
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* deleting a device node. */
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ObReferenceObject(ParentDeviceNode->PhysicalDeviceObject);
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/* Call the action routine */
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Status = (Context->Action)(ParentDeviceNode, Context->Context);
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if (!NT_SUCCESS(Status))
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{
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ObDereferenceObject(ParentDeviceNode->PhysicalDeviceObject);
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return Status;
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}
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/* Traversal of all children nodes */
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for (ChildDeviceNode = ParentDeviceNode->Child;
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ChildDeviceNode != NULL;
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ChildDeviceNode = NextDeviceNode)
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{
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/* HACK: We need this reference to ensure we can get Sibling below. */
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ObReferenceObject(ChildDeviceNode->PhysicalDeviceObject);
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/* Pass the current device node to the action routine */
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Context->DeviceNode = ChildDeviceNode;
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Status = IopTraverseDeviceTreeNode(Context);
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if (!NT_SUCCESS(Status))
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{
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ObDereferenceObject(ChildDeviceNode->PhysicalDeviceObject);
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ObDereferenceObject(ParentDeviceNode->PhysicalDeviceObject);
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return Status;
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}
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NextDeviceNode = ChildDeviceNode->Sibling;
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ObDereferenceObject(ChildDeviceNode->PhysicalDeviceObject);
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}
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ObDereferenceObject(ParentDeviceNode->PhysicalDeviceObject);
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return Status;
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}
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NTSTATUS
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IopTraverseDeviceTree(
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_In_ PDEVICETREE_TRAVERSE_CONTEXT Context)
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{
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NTSTATUS Status;
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DPRINT("Context 0x%p\n", Context);
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DPRINT("IopTraverseDeviceTree(DeviceNode 0x%p FirstDeviceNode 0x%p Action %p Context 0x%p)\n",
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Context->DeviceNode, Context->FirstDeviceNode, Context->Action, Context->Context);
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/* Start from the specified device node */
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Context->DeviceNode = Context->FirstDeviceNode;
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/* Recursively traverse the device tree */
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Status = IopTraverseDeviceTreeNode(Context);
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if (Status == STATUS_UNSUCCESSFUL)
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{
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/* The action routine just wanted to terminate the traversal with status
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code STATUS_SUCCESS */
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Status = STATUS_SUCCESS;
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}
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return Status;
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}
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@ -15,8 +15,6 @@
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/* GLOBALS *******************************************************************/
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PDEVICE_NODE IopRootDeviceNode;
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KSPIN_LOCK IopDeviceTreeLock;
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ERESOURCE PpRegistryDeviceResource;
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KGUARDED_MUTEX PpDeviceReferenceTableLock;
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RTL_AVL_TABLE PpDeviceReferenceTable;
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@ -24,6 +22,7 @@ RTL_AVL_TABLE PpDeviceReferenceTable;
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extern ERESOURCE IopDriverLoadResource;
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extern ULONG ExpInitializationPhase;
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extern BOOLEAN PnpSystemInit;
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extern PDEVICE_NODE IopRootDeviceNode;
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#define MAX_DEVICE_ID_LEN 200
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#define MAX_SEPARATORS_INSTANCEID 0
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@ -40,12 +39,6 @@ KSPIN_LOCK IopDeviceActionLock;
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/* FUNCTIONS *****************************************************************/
|
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|
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NTSTATUS
|
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NTAPI
|
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IopCreateDeviceKeyPath(IN PCUNICODE_STRING RegistryPath,
|
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IN ULONG CreateOptions,
|
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OUT PHANDLE Handle);
|
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|
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VOID
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IopCancelPrepareDeviceForRemoval(PDEVICE_OBJECT DeviceObject);
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@ -55,13 +48,6 @@ IopPrepareDeviceForRemoval(PDEVICE_OBJECT DeviceObject, BOOLEAN Force);
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PDEVICE_OBJECT
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IopGetDeviceObjectFromDeviceInstance(PUNICODE_STRING DeviceInstance);
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PDEVICE_NODE
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FASTCALL
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IopGetDeviceNode(PDEVICE_OBJECT DeviceObject)
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{
|
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return ((PEXTENDED_DEVOBJ_EXTENSION)DeviceObject->DeviceObjectExtension)->DeviceNode;
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}
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VOID
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IopFixupDeviceId(PWCHAR String)
|
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{
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|
|
@ -1239,252 +1225,6 @@ Quickie:
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return FoundIndex;
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}
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|
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/*
|
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* DESCRIPTION
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* Creates a device node
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*
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* ARGUMENTS
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* ParentNode = Pointer to parent device node
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* PhysicalDeviceObject = Pointer to PDO for device object. Pass NULL
|
||||
* to have the root device node create one
|
||||
* (eg. for legacy drivers)
|
||||
* DeviceNode = Pointer to storage for created device node
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*
|
||||
* RETURN VALUE
|
||||
* Status
|
||||
*/
|
||||
NTSTATUS
|
||||
IopCreateDeviceNode(PDEVICE_NODE ParentNode,
|
||||
PDEVICE_OBJECT PhysicalDeviceObject,
|
||||
PUNICODE_STRING ServiceName,
|
||||
PDEVICE_NODE *DeviceNode)
|
||||
{
|
||||
PDEVICE_NODE Node;
|
||||
NTSTATUS Status;
|
||||
KIRQL OldIrql;
|
||||
UNICODE_STRING FullServiceName;
|
||||
UNICODE_STRING LegacyPrefix = RTL_CONSTANT_STRING(L"LEGACY_");
|
||||
UNICODE_STRING UnknownDeviceName = RTL_CONSTANT_STRING(L"UNKNOWN");
|
||||
UNICODE_STRING KeyName, ClassName;
|
||||
PUNICODE_STRING ServiceName1;
|
||||
ULONG LegacyValue;
|
||||
UNICODE_STRING ClassGUID;
|
||||
HANDLE InstanceHandle;
|
||||
|
||||
DPRINT("ParentNode 0x%p PhysicalDeviceObject 0x%p ServiceName %wZ\n",
|
||||
ParentNode, PhysicalDeviceObject, ServiceName);
|
||||
|
||||
Node = ExAllocatePoolWithTag(NonPagedPool, sizeof(DEVICE_NODE), TAG_IO_DEVNODE);
|
||||
if (!Node)
|
||||
{
|
||||
return STATUS_INSUFFICIENT_RESOURCES;
|
||||
}
|
||||
|
||||
RtlZeroMemory(Node, sizeof(DEVICE_NODE));
|
||||
|
||||
if (!ServiceName)
|
||||
ServiceName1 = &UnknownDeviceName;
|
||||
else
|
||||
ServiceName1 = ServiceName;
|
||||
|
||||
if (!PhysicalDeviceObject)
|
||||
{
|
||||
FullServiceName.MaximumLength = LegacyPrefix.Length + ServiceName1->Length + sizeof(UNICODE_NULL);
|
||||
FullServiceName.Length = 0;
|
||||
FullServiceName.Buffer = ExAllocatePool(PagedPool, FullServiceName.MaximumLength);
|
||||
if (!FullServiceName.Buffer)
|
||||
{
|
||||
ExFreePoolWithTag(Node, TAG_IO_DEVNODE);
|
||||
return STATUS_INSUFFICIENT_RESOURCES;
|
||||
}
|
||||
|
||||
RtlAppendUnicodeStringToString(&FullServiceName, &LegacyPrefix);
|
||||
RtlAppendUnicodeStringToString(&FullServiceName, ServiceName1);
|
||||
RtlUpcaseUnicodeString(&FullServiceName, &FullServiceName, FALSE);
|
||||
|
||||
Status = PnpRootCreateDevice(&FullServiceName, NULL, &PhysicalDeviceObject, &Node->InstancePath);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
DPRINT1("PnpRootCreateDevice() failed with status 0x%08X\n", Status);
|
||||
ExFreePool(FullServiceName.Buffer);
|
||||
ExFreePoolWithTag(Node, TAG_IO_DEVNODE);
|
||||
return Status;
|
||||
}
|
||||
|
||||
/* Create the device key for legacy drivers */
|
||||
Status = IopCreateDeviceKeyPath(&Node->InstancePath, REG_OPTION_VOLATILE, &InstanceHandle);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
ExFreePool(FullServiceName.Buffer);
|
||||
ExFreePoolWithTag(Node, TAG_IO_DEVNODE);
|
||||
return Status;
|
||||
}
|
||||
|
||||
Node->ServiceName.MaximumLength = ServiceName1->Length + sizeof(UNICODE_NULL);
|
||||
Node->ServiceName.Length = 0;
|
||||
Node->ServiceName.Buffer = ExAllocatePool(PagedPool, Node->ServiceName.MaximumLength);
|
||||
if (!Node->ServiceName.Buffer)
|
||||
{
|
||||
ZwClose(InstanceHandle);
|
||||
ExFreePool(FullServiceName.Buffer);
|
||||
ExFreePoolWithTag(Node, TAG_IO_DEVNODE);
|
||||
return Status;
|
||||
}
|
||||
|
||||
RtlCopyUnicodeString(&Node->ServiceName, ServiceName1);
|
||||
|
||||
if (ServiceName)
|
||||
{
|
||||
RtlInitUnicodeString(&KeyName, L"Service");
|
||||
Status = ZwSetValueKey(InstanceHandle, &KeyName, 0, REG_SZ, ServiceName->Buffer, ServiceName->Length + sizeof(UNICODE_NULL));
|
||||
}
|
||||
|
||||
if (NT_SUCCESS(Status))
|
||||
{
|
||||
RtlInitUnicodeString(&KeyName, L"Legacy");
|
||||
LegacyValue = 1;
|
||||
Status = ZwSetValueKey(InstanceHandle, &KeyName, 0, REG_DWORD, &LegacyValue, sizeof(LegacyValue));
|
||||
|
||||
RtlInitUnicodeString(&KeyName, L"ConfigFlags");
|
||||
LegacyValue = 0;
|
||||
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 + sizeof(UNICODE_NULL));
|
||||
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 + sizeof(UNICODE_NULL));
|
||||
if (NT_SUCCESS(Status))
|
||||
{
|
||||
// FIXME: Retrieve the real "description" by looking at the "DisplayName" string
|
||||
// of the corresponding CurrentControlSet\Services\xxx entry for this driver.
|
||||
RtlInitUnicodeString(&KeyName, L"DeviceDesc");
|
||||
Status = ZwSetValueKey(InstanceHandle, &KeyName, 0, REG_SZ, ServiceName1->Buffer, ServiceName1->Length + sizeof(UNICODE_NULL));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
ZwClose(InstanceHandle);
|
||||
ExFreePool(FullServiceName.Buffer);
|
||||
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
ExFreePool(Node->ServiceName.Buffer);
|
||||
ExFreePoolWithTag(Node, TAG_IO_DEVNODE);
|
||||
return Status;
|
||||
}
|
||||
|
||||
IopDeviceNodeSetFlag(Node, DNF_LEGACY_DRIVER);
|
||||
IopDeviceNodeSetFlag(Node, DNF_PROCESSED);
|
||||
IopDeviceNodeSetFlag(Node, DNF_ADDED);
|
||||
IopDeviceNodeSetFlag(Node, DNF_STARTED);
|
||||
}
|
||||
|
||||
Node->PhysicalDeviceObject = PhysicalDeviceObject;
|
||||
|
||||
((PEXTENDED_DEVOBJ_EXTENSION)PhysicalDeviceObject->DeviceObjectExtension)->DeviceNode = Node;
|
||||
|
||||
if (ParentNode)
|
||||
{
|
||||
KeAcquireSpinLock(&IopDeviceTreeLock, &OldIrql);
|
||||
Node->Parent = ParentNode;
|
||||
Node->Sibling = NULL;
|
||||
if (ParentNode->LastChild == NULL)
|
||||
{
|
||||
ParentNode->Child = Node;
|
||||
ParentNode->LastChild = Node;
|
||||
}
|
||||
else
|
||||
{
|
||||
ParentNode->LastChild->Sibling = Node;
|
||||
ParentNode->LastChild = Node;
|
||||
}
|
||||
KeReleaseSpinLock(&IopDeviceTreeLock, OldIrql);
|
||||
Node->Level = ParentNode->Level + 1;
|
||||
}
|
||||
|
||||
PhysicalDeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
|
||||
|
||||
*DeviceNode = Node;
|
||||
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
NTSTATUS
|
||||
IopFreeDeviceNode(PDEVICE_NODE DeviceNode)
|
||||
{
|
||||
KIRQL OldIrql;
|
||||
PDEVICE_NODE PrevSibling = NULL;
|
||||
|
||||
/* All children must be deleted before a parent is deleted */
|
||||
ASSERT(!DeviceNode->Child);
|
||||
ASSERT(DeviceNode->PhysicalDeviceObject);
|
||||
|
||||
KeAcquireSpinLock(&IopDeviceTreeLock, &OldIrql);
|
||||
|
||||
/* Get previous sibling */
|
||||
if (DeviceNode->Parent && DeviceNode->Parent->Child != DeviceNode)
|
||||
{
|
||||
PrevSibling = DeviceNode->Parent->Child;
|
||||
while (PrevSibling->Sibling != DeviceNode)
|
||||
PrevSibling = PrevSibling->Sibling;
|
||||
}
|
||||
|
||||
/* Unlink from parent if it exists */
|
||||
if (DeviceNode->Parent)
|
||||
{
|
||||
if (DeviceNode->Parent->LastChild == DeviceNode)
|
||||
{
|
||||
DeviceNode->Parent->LastChild = PrevSibling;
|
||||
if (PrevSibling)
|
||||
PrevSibling->Sibling = NULL;
|
||||
}
|
||||
if (DeviceNode->Parent->Child == DeviceNode)
|
||||
DeviceNode->Parent->Child = DeviceNode->Sibling;
|
||||
}
|
||||
|
||||
/* Unlink from sibling list */
|
||||
if (PrevSibling)
|
||||
PrevSibling->Sibling = DeviceNode->Sibling;
|
||||
|
||||
KeReleaseSpinLock(&IopDeviceTreeLock, OldIrql);
|
||||
|
||||
RtlFreeUnicodeString(&DeviceNode->InstancePath);
|
||||
|
||||
RtlFreeUnicodeString(&DeviceNode->ServiceName);
|
||||
|
||||
if (DeviceNode->ResourceList)
|
||||
{
|
||||
ExFreePool(DeviceNode->ResourceList);
|
||||
}
|
||||
|
||||
if (DeviceNode->ResourceListTranslated)
|
||||
{
|
||||
ExFreePool(DeviceNode->ResourceListTranslated);
|
||||
}
|
||||
|
||||
if (DeviceNode->ResourceRequirements)
|
||||
{
|
||||
ExFreePool(DeviceNode->ResourceRequirements);
|
||||
}
|
||||
|
||||
if (DeviceNode->BootResources)
|
||||
{
|
||||
ExFreePool(DeviceNode->BootResources);
|
||||
}
|
||||
|
||||
((PEXTENDED_DEVOBJ_EXTENSION)DeviceNode->PhysicalDeviceObject->DeviceObjectExtension)->DeviceNode = NULL;
|
||||
ExFreePoolWithTag(DeviceNode, TAG_IO_DEVNODE);
|
||||
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
NTSTATUS
|
||||
NTAPI
|
||||
IopSynchronousCall(IN PDEVICE_OBJECT DeviceObject,
|
||||
|
|
@ -1583,85 +1323,6 @@ IopInitiatePnpIrp(IN PDEVICE_OBJECT DeviceObject,
|
|||
return IoStatusBlock->Status;
|
||||
}
|
||||
|
||||
NTSTATUS
|
||||
IopTraverseDeviceTreeNode(PDEVICETREE_TRAVERSE_CONTEXT Context)
|
||||
{
|
||||
PDEVICE_NODE ParentDeviceNode;
|
||||
PDEVICE_NODE ChildDeviceNode;
|
||||
PDEVICE_NODE NextDeviceNode;
|
||||
NTSTATUS Status;
|
||||
|
||||
/* Copy context data so we don't overwrite it in subsequent calls to this function */
|
||||
ParentDeviceNode = Context->DeviceNode;
|
||||
|
||||
/* HACK: Keep a reference to the PDO so we can keep traversing the tree
|
||||
* if the device is deleted. In a perfect world, children would have to be
|
||||
* deleted before their parents, and we'd restart the traversal after
|
||||
* deleting a device node. */
|
||||
ObReferenceObject(ParentDeviceNode->PhysicalDeviceObject);
|
||||
|
||||
/* Call the action routine */
|
||||
Status = (Context->Action)(ParentDeviceNode, Context->Context);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
ObDereferenceObject(ParentDeviceNode->PhysicalDeviceObject);
|
||||
return Status;
|
||||
}
|
||||
|
||||
/* Traversal of all children nodes */
|
||||
for (ChildDeviceNode = ParentDeviceNode->Child;
|
||||
ChildDeviceNode != NULL;
|
||||
ChildDeviceNode = NextDeviceNode)
|
||||
{
|
||||
/* HACK: We need this reference to ensure we can get Sibling below. */
|
||||
ObReferenceObject(ChildDeviceNode->PhysicalDeviceObject);
|
||||
|
||||
/* Pass the current device node to the action routine */
|
||||
Context->DeviceNode = ChildDeviceNode;
|
||||
|
||||
Status = IopTraverseDeviceTreeNode(Context);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
ObDereferenceObject(ChildDeviceNode->PhysicalDeviceObject);
|
||||
ObDereferenceObject(ParentDeviceNode->PhysicalDeviceObject);
|
||||
return Status;
|
||||
}
|
||||
|
||||
NextDeviceNode = ChildDeviceNode->Sibling;
|
||||
ObDereferenceObject(ChildDeviceNode->PhysicalDeviceObject);
|
||||
}
|
||||
|
||||
ObDereferenceObject(ParentDeviceNode->PhysicalDeviceObject);
|
||||
return Status;
|
||||
}
|
||||
|
||||
|
||||
NTSTATUS
|
||||
IopTraverseDeviceTree(PDEVICETREE_TRAVERSE_CONTEXT Context)
|
||||
{
|
||||
NTSTATUS Status;
|
||||
|
||||
DPRINT("Context 0x%p\n", Context);
|
||||
|
||||
DPRINT("IopTraverseDeviceTree(DeviceNode 0x%p FirstDeviceNode 0x%p Action %p Context 0x%p)\n",
|
||||
Context->DeviceNode, Context->FirstDeviceNode, Context->Action, Context->Context);
|
||||
|
||||
/* Start from the specified device node */
|
||||
Context->DeviceNode = Context->FirstDeviceNode;
|
||||
|
||||
/* Recursively traverse the device tree */
|
||||
Status = IopTraverseDeviceTreeNode(Context);
|
||||
if (Status == STATUS_UNSUCCESSFUL)
|
||||
{
|
||||
/* The action routine just wanted to terminate the traversal with status
|
||||
code STATUS_SUCCESS */
|
||||
Status = STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* IopCreateDeviceKeyPath
|
||||
*
|
||||
|
|
@ -4038,49 +3699,6 @@ PpInitSystem(VOID)
|
|||
}
|
||||
}
|
||||
|
||||
LONG IopNumberDeviceNodes;
|
||||
|
||||
PDEVICE_NODE
|
||||
NTAPI
|
||||
PipAllocateDeviceNode(IN PDEVICE_OBJECT PhysicalDeviceObject)
|
||||
{
|
||||
PDEVICE_NODE DeviceNode;
|
||||
PAGED_CODE();
|
||||
|
||||
/* Allocate it */
|
||||
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;
|
||||
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 **********************************************************/
|
||||
|
||||
NTSTATUS
|
||||
|
|
|
|||
|
|
@ -24,12 +24,6 @@ typedef struct _INTERNAL_WORK_QUEUE_ITEM
|
|||
PTARGET_DEVICE_CUSTOM_NOTIFICATION NotificationStructure;
|
||||
} INTERNAL_WORK_QUEUE_ITEM, *PINTERNAL_WORK_QUEUE_ITEM;
|
||||
|
||||
NTSTATUS
|
||||
NTAPI
|
||||
IopCreateDeviceKeyPath(IN PCUNICODE_STRING RegistryPath,
|
||||
IN ULONG CreateOptions,
|
||||
OUT PHANDLE Handle);
|
||||
|
||||
NTSTATUS
|
||||
IopSetDeviceInstanceData(HANDLE InstanceKey,
|
||||
PDEVICE_NODE DeviceNode);
|
||||
|
|
|
|||
|
|
@ -152,6 +152,7 @@ list(APPEND SOURCE
|
|||
${REACTOS_SOURCE_DIR}/ntoskrnl/io/iomgr/util.c
|
||||
${REACTOS_SOURCE_DIR}/ntoskrnl/io/iomgr/volume.c
|
||||
${REACTOS_SOURCE_DIR}/ntoskrnl/io/pnpmgr/arbs.c
|
||||
${REACTOS_SOURCE_DIR}/ntoskrnl/io/pnpmgr/devnode.c
|
||||
${REACTOS_SOURCE_DIR}/ntoskrnl/io/pnpmgr/plugplay.c
|
||||
${REACTOS_SOURCE_DIR}/ntoskrnl/io/pnpmgr/pnpdma.c
|
||||
${REACTOS_SOURCE_DIR}/ntoskrnl/io/pnpmgr/pnpinit.c
|
||||
|
|
|
|||
Loading…
Reference in a new issue