#define NDEBUG
#include <debug.h>
-//#define ENABLE_ACPI
-
/* GLOBALS *******************************************************************/
PDEVICE_NODE IopRootDeviceNode;
RTL_AVL_TABLE PpDeviceReferenceTable;
extern ULONG ExpInitializationPhase;
+extern BOOLEAN ExpInTextModeSetup;
extern BOOLEAN PnpSystemInit;
/* DATA **********************************************************************/
IN ULONG CreateOptions,
OUT PHANDLE Handle);
+VOID
+IopCancelPrepareDeviceForRemoval(PDEVICE_OBJECT DeviceObject);
+
+NTSTATUS
+IopPrepareDeviceForRemoval(PDEVICE_OBJECT DeviceObject, BOOLEAN Force);
+
+PDEVICE_OBJECT
+IopGetDeviceObjectFromDeviceInstance(PUNICODE_STRING DeviceInstance);
+
PDEVICE_NODE
FASTCALL
IopGetDeviceNode(PDEVICE_OBJECT DeviceObject)
return ((PEXTENDED_DEVOBJ_EXTENSION)DeviceObject->DeviceObjectExtension)->DeviceNode;
}
+VOID
+IopFixupDeviceId(PWCHAR String)
+{
+ SIZE_T Length = wcslen(String), i;
+
+ for (i = 0; i < Length; i++)
+ {
+ if (String[i] == L'\\')
+ String[i] = L'#';
+ }
+}
+
+VOID
+NTAPI
+IopInstallCriticalDevice(PDEVICE_NODE DeviceNode)
+{
+ NTSTATUS Status;
+ HANDLE CriticalDeviceKey, InstanceKey;
+ OBJECT_ATTRIBUTES ObjectAttributes;
+ UNICODE_STRING CriticalDeviceKeyU = RTL_CONSTANT_STRING(L"\\Registry\\Machine\\System\\CurrentControlSet\\Control\\CriticalDeviceDatabase");
+ UNICODE_STRING CompatibleIdU = RTL_CONSTANT_STRING(L"CompatibleIDs");
+ UNICODE_STRING HardwareIdU = RTL_CONSTANT_STRING(L"HardwareID");
+ UNICODE_STRING ServiceU = RTL_CONSTANT_STRING(L"Service");
+ UNICODE_STRING ClassGuidU = RTL_CONSTANT_STRING(L"ClassGUID");
+ 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)
+ return;
+
+ Status = ZwQueryValueKey(InstanceKey,
+ &HardwareIdU,
+ KeyValuePartialInformation,
+ NULL,
+ 0,
+ &HidLength);
+ if (Status != STATUS_BUFFER_OVERFLOW && Status != STATUS_BUFFER_TOO_SMALL)
+ {
+ ZwClose(InstanceKey);
+ return;
+ }
+
+ Status = ZwQueryValueKey(InstanceKey,
+ &CompatibleIdU,
+ KeyValuePartialInformation,
+ NULL,
+ 0,
+ &CidLength);
+ if (Status != STATUS_BUFFER_OVERFLOW && Status != STATUS_BUFFER_TOO_SMALL)
+ {
+ CidLength = 0;
+ }
+
+ BufferLength = HidLength + CidLength;
+ BufferLength -= (((CidLength != 0) ? 2 : 1) * FIELD_OFFSET(KEY_VALUE_PARTIAL_INFORMATION, Data));
+
+ /* Allocate a buffer to hold data from both */
+ OriginalIdBuffer = IdBuffer = ExAllocatePool(PagedPool, BufferLength);
+ if (!IdBuffer)
+ {
+ ZwClose(InstanceKey);
+ return;
+ }
+
+ /* Compute the buffer size */
+ if (HidLength > CidLength)
+ BufferLength = HidLength;
+ else
+ BufferLength = CidLength;
+
+ PartialInfo = ExAllocatePool(PagedPool, BufferLength);
+ if (!PartialInfo)
+ {
+ ZwClose(InstanceKey);
+ ExFreePool(OriginalIdBuffer);
+ return;
+ }
+
+ Status = ZwQueryValueKey(InstanceKey,
+ &HardwareIdU,
+ KeyValuePartialInformation,
+ PartialInfo,
+ HidLength,
+ &HidLength);
+ if (Status != STATUS_SUCCESS)
+ {
+ ExFreePool(PartialInfo);
+ ExFreePool(OriginalIdBuffer);
+ ZwClose(InstanceKey);
+ return;
+ }
+
+ /* Copy in HID info first (without 2nd terminating NULL if CID is present) */
+ HidLength = PartialInfo->DataLength - ((CidLength != 0) ? sizeof(WCHAR) : 0);
+ RtlCopyMemory(IdBuffer, PartialInfo->Data, HidLength);
+
+ if (CidLength != 0)
+ {
+ Status = ZwQueryValueKey(InstanceKey,
+ &CompatibleIdU,
+ KeyValuePartialInformation,
+ PartialInfo,
+ CidLength,
+ &CidLength);
+ if (Status != STATUS_SUCCESS)
+ {
+ ExFreePool(PartialInfo);
+ ExFreePool(OriginalIdBuffer);
+ 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,
+ NULL,
+ NULL);
+ Status = ZwOpenKey(&CriticalDeviceKey,
+ KEY_ENUMERATE_SUB_KEYS,
+ &ObjectAttributes);
+ if (!NT_SUCCESS(Status))
+ {
+ /* The critical device database doesn't exist because
+ * we're probably in 1st stage setup, but it's ok */
+ ExFreePool(OriginalIdBuffer);
+ ZwClose(InstanceKey);
+ return;
+ }
+
+ 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,
+ NULL,
+ 0,
+ &NeededLength);
+ if (Status == STATUS_NO_MORE_ENTRIES)
+ break;
+ else if (Status == STATUS_BUFFER_OVERFLOW || Status == STATUS_BUFFER_TOO_SMALL)
+ {
+ UNICODE_STRING ChildIdNameU, RegKeyNameU;
+
+ BasicInfo = ExAllocatePool(PagedPool, NeededLength);
+ if (!BasicInfo)
+ {
+ /* No memory */
+ ExFreePool(OriginalIdBuffer);
+ ZwClose(CriticalDeviceKey);
+ ZwClose(InstanceKey);
+ return;
+ }
+
+ Status = ZwEnumerateKey(CriticalDeviceKey,
+ Index,
+ KeyBasicInformation,
+ BasicInfo,
+ NeededLength,
+ &NeededLength);
+ if (Status != STATUS_SUCCESS)
+ {
+ /* This shouldn't happen */
+ ExFreePool(BasicInfo);
+ continue;
+ }
+
+ ChildIdNameU.Buffer = IdBuffer;
+ ChildIdNameU.MaximumLength = ChildIdNameU.Length = (StringLength - 1) * sizeof(WCHAR);
+ RegKeyNameU.Buffer = BasicInfo->Name;
+ RegKeyNameU.MaximumLength = RegKeyNameU.Length = (USHORT)BasicInfo->NameLength;
+
+ if (RtlEqualUnicodeString(&ChildIdNameU, &RegKeyNameU, TRUE))
+ {
+ HANDLE ChildKeyHandle;
+
+ InitializeObjectAttributes(&ObjectAttributes,
+ &ChildIdNameU,
+ OBJ_KERNEL_HANDLE | OBJ_CASE_INSENSITIVE,
+ CriticalDeviceKey,
+ NULL);
+
+ Status = ZwOpenKey(&ChildKeyHandle,
+ KEY_QUERY_VALUE,
+ &ObjectAttributes);
+ if (Status != STATUS_SUCCESS)
+ {
+ ExFreePool(BasicInfo);
+ continue;
+ }
+
+ /* Check if there's already a driver installed */
+ Status = ZwQueryValueKey(InstanceKey,
+ &ClassGuidU,
+ KeyValuePartialInformation,
+ NULL,
+ 0,
+ &NeededLength);
+ if (Status == STATUS_BUFFER_OVERFLOW || Status == STATUS_BUFFER_TOO_SMALL)
+ {
+ ExFreePool(BasicInfo);
+ continue;
+ }
+
+ Status = ZwQueryValueKey(ChildKeyHandle,
+ &ClassGuidU,
+ KeyValuePartialInformation,
+ NULL,
+ 0,
+ &NeededLength);
+ if (Status != STATUS_BUFFER_OVERFLOW && Status != STATUS_BUFFER_TOO_SMALL)
+ {
+ ExFreePool(BasicInfo);
+ continue;
+ }
+
+ PartialInfo = ExAllocatePool(PagedPool, NeededLength);
+ if (!PartialInfo)
+ {
+ ExFreePool(OriginalIdBuffer);
+ ExFreePool(BasicInfo);
+ ZwClose(InstanceKey);
+ ZwClose(ChildKeyHandle);
+ ZwClose(CriticalDeviceKey);
+ return;
+ }
+
+ /* Read ClassGUID entry in the CDDB */
+ Status = ZwQueryValueKey(ChildKeyHandle,
+ &ClassGuidU,
+ KeyValuePartialInformation,
+ PartialInfo,
+ NeededLength,
+ &NeededLength);
+ if (Status != STATUS_SUCCESS)
+ {
+ ExFreePool(BasicInfo);
+ continue;
+ }
+
+ /* Write it to the ENUM key */
+ Status = ZwSetValueKey(InstanceKey,
+ &ClassGuidU,
+ 0,
+ REG_SZ,
+ PartialInfo->Data,
+ PartialInfo->DataLength);
+ if (Status != STATUS_SUCCESS)
+ {
+ ExFreePool(BasicInfo);
+ ExFreePool(PartialInfo);
+ ZwClose(ChildKeyHandle);
+ continue;
+ }
+
+ Status = ZwQueryValueKey(ChildKeyHandle,
+ &ServiceU,
+ KeyValuePartialInformation,
+ NULL,
+ 0,
+ &NeededLength);
+ if (Status == STATUS_BUFFER_OVERFLOW || Status == STATUS_BUFFER_TOO_SMALL)
+ {
+ ExFreePool(PartialInfo);
+ PartialInfo = ExAllocatePool(PagedPool, NeededLength);
+ if (!PartialInfo)
+ {
+ ExFreePool(OriginalIdBuffer);
+ ExFreePool(BasicInfo);
+ ZwClose(InstanceKey);
+ ZwClose(ChildKeyHandle);
+ ZwClose(CriticalDeviceKey);
+ return;
+ }
+
+ /* Read the service entry from the CDDB */
+ Status = ZwQueryValueKey(ChildKeyHandle,
+ &ServiceU,
+ KeyValuePartialInformation,
+ PartialInfo,
+ NeededLength,
+ &NeededLength);
+ if (Status != STATUS_SUCCESS)
+ {
+ ExFreePool(BasicInfo);
+ ExFreePool(PartialInfo);
+ ZwClose(ChildKeyHandle);
+ continue;
+ }
+
+ /* Write it to the ENUM key */
+ Status = ZwSetValueKey(InstanceKey,
+ &ServiceU,
+ 0,
+ REG_SZ,
+ PartialInfo->Data,
+ PartialInfo->DataLength);
+ if (Status != STATUS_SUCCESS)
+ {
+ ExFreePool(BasicInfo);
+ ExFreePool(PartialInfo);
+ ZwClose(ChildKeyHandle);
+ continue;
+ }
+
+ DPRINT1("Installed service '%S' for critical device '%wZ'\n", PartialInfo->Data, &ChildIdNameU);
+ }
+ else
+ {
+ DPRINT1("Installed NULL service for critical device '%wZ'\n", &ChildIdNameU);
+ }
+
+ ExFreePool(OriginalIdBuffer);
+ ExFreePool(PartialInfo);
+ ExFreePool(BasicInfo);
+ ZwClose(InstanceKey);
+ ZwClose(ChildKeyHandle);
+ ZwClose(CriticalDeviceKey);
+
+ /* That's it */
+ return;
+ }
+
+ ExFreePool(BasicInfo);
+ }
+ else
+ {
+ /* Umm, not sure what happened here */
+ continue;
+ }
+ }
+
+ /* Advance to the next ID */
+ IdBuffer += StringLength;
+ }
+
+ ExFreePool(OriginalIdBuffer);
+ ZwClose(InstanceKey);
+ ZwClose(CriticalDeviceKey);
+}
+
NTSTATUS
FASTCALL
IopInitializeDevice(PDEVICE_NODE DeviceNode,
DriverObject, DeviceNode->PhysicalDeviceObject);
if (!NT_SUCCESS(Status))
{
+ DPRINT1("%wZ->AddDevice(%wZ) failed with status 0x%x\n",
+ &DriverObject->DriverName,
+ &DeviceNode->InstancePath,
+ Status);
IopDeviceNodeSetFlag(DeviceNode, DNF_DISABLED);
+ DeviceNode->Problem = CM_PROB_FAILED_ADD;
return Status;
}
- /* Check if driver added a FDO above the PDO */
Fdo = IoGetAttachedDeviceReference(DeviceNode->PhysicalDeviceObject);
- if (Fdo == DeviceNode->PhysicalDeviceObject)
- {
- /* FIXME: What do we do? Unload the driver or just disable the device? */
- DPRINT1("An FDO was not attached\n");
- ObDereferenceObject(Fdo);
- IopDeviceNodeSetFlag(DeviceNode, DNF_DISABLED);
- return STATUS_UNSUCCESSFUL;
- }
/* Check if we have a ACPI device (needed for power management) */
if (Fdo->DeviceType == FILE_DEVICE_ACPI)
if (!SystemPowerDeviceNodeCreated)
{
PopSystemPowerDeviceNode = DeviceNode;
- ObReferenceObject(PopSystemPowerDeviceNode);
+ ObReferenceObject(PopSystemPowerDeviceNode->PhysicalDeviceObject);
SystemPowerDeviceNodeCreated = TRUE;
}
}
return STATUS_SUCCESS;
}
+static
NTSTATUS
NTAPI
IopSendEject(IN PDEVICE_OBJECT DeviceObject)
Stack.MajorFunction = IRP_MJ_PNP;
Stack.MinorFunction = IRP_MN_EJECT;
- return IopSynchronousCall(DeviceObject, &Stack, &Dummy);
+ return IopSynchronousCall(DeviceObject, &Stack, &Dummy);
}
+static
VOID
NTAPI
IopSendSurpriseRemoval(IN PDEVICE_OBJECT DeviceObject)
IopSynchronousCall(DeviceObject, &Stack, &Dummy);
}
+static
NTSTATUS
NTAPI
IopQueryRemoveDevice(IN PDEVICE_OBJECT DeviceObject)
{
+ PDEVICE_NODE DeviceNode = IopGetDeviceNode(DeviceObject);
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);
+ IopQueueTargetDeviceEvent(&GUID_DEVICE_REMOVAL_VETOED,
+ &DeviceNode->InstancePath);
+ }
return Status;
}
+static
NTSTATUS
NTAPI
IopQueryStopDevice(IN PDEVICE_OBJECT DeviceObject)
return IopSynchronousCall(DeviceObject, &Stack, &Dummy);
}
+static
VOID
NTAPI
IopSendRemoveDevice(IN PDEVICE_OBJECT DeviceObject)
NULL);
}
+static
+VOID
+NTAPI
+IopCancelRemoveDevice(IN PDEVICE_OBJECT DeviceObject)
+{
+ IO_STACK_LOCATION Stack;
+ PVOID Dummy;
+
+ RtlZeroMemory(&Stack, sizeof(IO_STACK_LOCATION));
+ Stack.MajorFunction = IRP_MJ_PNP;
+ Stack.MinorFunction = IRP_MN_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,
+ NULL,
+ NULL);
+}
+
+static
VOID
NTAPI
IopSendStopDevice(IN PDEVICE_OBJECT 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;
if (!NT_SUCCESS(Status))
{
/* Send an IRP_MN_REMOVE_DEVICE request */
- IopSendRemoveDevice(DeviceObject);
+ IopRemoveDevice(DeviceNode);
/* Set the appropriate flag */
DeviceNode->Flags |= DNF_START_FAILED;
+ DeviceNode->Problem = CM_PROB_FAILED_START;
- DPRINT1("Warning: PnP Start failed (%wZ)\n", &DeviceNode->InstancePath);
+ DPRINT1("Warning: PnP Start failed (%wZ) [Status: 0x%x]\n", &DeviceNode->InstancePath, Status);
return;
}
Status = IopQueryDeviceCapabilities(DeviceNode, &DeviceCapabilities);
if (!NT_SUCCESS(Status))
{
- DPRINT("IopInitiatePnpIrp() failed (Status 0x%08lx)\n", Status);
+ DPRINT1("IopInitiatePnpIrp() failed (Status 0x%08lx)\n", Status);
}
/* Invalidate device state so IRP_MN_QUERY_PNP_DEVICE_STATE is sent */
DPRINT("Stopping device: %wZ\n", &DeviceNode->InstancePath);
Status = IopQueryStopDevice(DeviceNode->PhysicalDeviceObject);
- if (!NT_SUCCESS(Status))
+ if (NT_SUCCESS(Status))
{
IopSendStopDevice(DeviceNode->PhysicalDeviceObject);
+
+ DeviceNode->Flags &= ~(DNF_STARTED | DNF_START_REQUEST_PENDING);
+ DeviceNode->Flags |= DNF_STOPPED;
+
return STATUS_SUCCESS;
}
if (DeviceCaps->NoDisplayInUI)
DeviceNode->UserFlags |= DNUF_DONT_SHOW_IN_UI;
else
- DeviceNode->UserFlags &= DNUF_DONT_SHOW_IN_UI;
+ DeviceNode->UserFlags &= ~DNUF_DONT_SHOW_IN_UI;
Status = IopCreateDeviceKeyPath(&DeviceNode->InstancePath, 0, &InstanceKey);
if (NT_SUCCESS(Status))
NewList = ExAllocatePool(PagedPool, NewSize);
if (!NewList) {
- /* Fail */
- ExFreePool(PnpBusTypeGuidList);
- goto Quickie;
+ /* Fail */
+ ExFreePool(PnpBusTypeGuidList);
+ goto Quickie;
}
/* Now copy them, decrease the size too */
/*
* DESCRIPTION
- * Creates a device node
+ * Creates a device node
*
* ARGUMENTS
* ParentNode = Pointer to parent device node
* DeviceNode = Pointer to storage for created device node
*
* RETURN VALUE
- * Status
+ * Status
*/
NTSTATUS
IopCreateDeviceNode(PDEVICE_NODE ParentNode,
UNICODE_STRING KeyName, ClassName;
PUNICODE_STRING ServiceName1;
ULONG LegacyValue;
-#if 0
UNICODE_STRING ClassGUID;
-#endif
HANDLE InstanceHandle;
DPRINT("ParentNode 0x%p PhysicalDeviceObject 0x%p ServiceName %wZ\n",
RtlAppendUnicodeStringToString(&FullServiceName, &LegacyPrefix);
RtlAppendUnicodeStringToString(&FullServiceName, ServiceName1);
- Status = PnpRootCreateDevice(&FullServiceName, &PhysicalDeviceObject, &Node->InstancePath);
+ Status = PnpRootCreateDevice(&FullServiceName, NULL, &PhysicalDeviceObject, &Node->InstancePath);
if (!NT_SUCCESS(Status))
{
DPRINT1("PnpRootCreateDevice() failed with status 0x%08X\n", Status);
{
RtlInitUnicodeString(&KeyName, L"Class");
- RtlInitUnicodeString(&ClassName, L"LegacyDriver");
- Status = ZwSetValueKey(InstanceHandle, &KeyName, 0, REG_SZ, ClassName.Buffer, ClassName.Length);
-#if 0
+ RtlInitUnicodeString(&ClassName, L"LegacyDriver\0");
+ 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);
+ RtlInitUnicodeString(&ClassGUID, L"{8ECC055D-047F-11D1-A537-0000F8753ED1}\0");
+ Status = ZwSetValueKey(InstanceHandle, &KeyName, 0, REG_SZ, ClassGUID.Buffer, ClassGUID.Length + sizeof(UNICODE_NULL));
+ if (NT_SUCCESS(Status))
+ {
+ RtlInitUnicodeString(&KeyName, L"DeviceDesc");
+
+ Status = ZwSetValueKey(InstanceHandle, &KeyName, 0, REG_SZ, ServiceName1->Buffer, ServiceName1->Length + sizeof(UNICODE_NULL));
+ }
}
-#endif
}
}
}
IopDeviceNodeSetFlag(Node, DNF_LEGACY_DRIVER);
+ IopDeviceNodeSetFlag(Node, DNF_PROCESSED);
IopDeviceNodeSetFlag(Node, DNF_ADDED);
IopDeviceNodeSetFlag(Node, DNF_STARTED);
}
{
KeAcquireSpinLock(&IopDeviceTreeLock, &OldIrql);
Node->Parent = ParentNode;
- Node->Sibling = ParentNode->Child;
- ParentNode->Child = Node;
+ 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;
}
/* All children must be deleted before a parent is deleted */
ASSERT(!DeviceNode->Child);
-
- KeAcquireSpinLock(&IopDeviceTreeLock, &OldIrql);
-
ASSERT(DeviceNode->PhysicalDeviceObject);
- ObDereferenceObject(DeviceNode->PhysicalDeviceObject);
+ KeAcquireSpinLock(&IopDeviceTreeLock, &OldIrql);
/* Get previous sibling */
if (DeviceNode->Parent && DeviceNode->Parent->Child != DeviceNode)
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)
+ {
+ /* Copy the resource requirements list into the IOSB */
+ Irp->IoStatus.Information =
+ IoStatusBlock.Information = (ULONG_PTR)IoStackLocation->Parameters.FilterResourceRequirements.IoResourceRequirementList;
+ }
+
/* Initialize the event */
KeInitializeEvent(&Event, SynchronizationEvent, FALSE);
NULL);
Status = IoStatusBlock.Status;
}
-
+
+ /* Remove the reference */
+ ObDereferenceObject(TopDeviceObject);
+
/* Return the information */
*Information = (PVOID)IoStatusBlock.Information;
return Status;
NTAPI
IopInitiatePnpIrp(IN PDEVICE_OBJECT DeviceObject,
IN OUT PIO_STATUS_BLOCK IoStatusBlock,
- IN ULONG MinorFunction,
+ IN UCHAR MinorFunction,
IN PIO_STACK_LOCATION Stack OPTIONAL)
{
IO_STACK_LOCATION IoStackLocation;
DPRINT("Context 0x%p\n", Context);
- DPRINT("IopTraverseDeviceTree(DeviceNode 0x%p FirstDeviceNode 0x%p Action %x Context 0x%p)\n",
+ 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 */
OBJECT_ATTRIBUTES ObjectAttributes;
UNICODE_STRING KeyName;
LPCWSTR Current, Last;
- ULONG dwLength;
+ USHORT Length;
NTSTATUS Status;
/* Assume failure */
*Handle = NULL;
+ /* Create a volatile device tree in 1st stage so we have a clean slate
+ * for enumeration using the correct HAL (chosen in 1st stage setup) */
+ if (ExpInTextModeSetup) CreateOptions |= REG_OPTION_VOLATILE;
+
/* Open root key for device instances */
Status = IopOpenRegistryKeyEx(&hParent, NULL, &EnumU, KEY_CREATE_SUB_KEY);
if (!NT_SUCCESS(Status))
}
/* Prepare relative key name */
- dwLength = (ULONG_PTR)Current - (ULONG_PTR)KeyName.Buffer;
- KeyName.MaximumLength = KeyName.Length = dwLength;
+ Length = (USHORT)((ULONG_PTR)Current - (ULONG_PTR)KeyName.Buffer);
+ KeyName.MaximumLength = KeyName.Length = Length;
DPRINT("Create '%wZ'\n", &KeyName);
/* Open key */
&ObjectAttributes,
0,
NULL,
- 0,
+ REG_OPTION_VOLATILE,
NULL);
if (NT_SUCCESS(Status))
{
{
ULONG KeyNameBufferLength;
PKEY_VALUE_PARTIAL_INFORMATION ParentIdPrefixInformation = NULL;
- UNICODE_STRING KeyName;
+ UNICODE_STRING KeyName = {0, 0, NULL};
UNICODE_STRING KeyValue;
UNICODE_STRING ValueName;
HANDLE hKey = NULL;
ParentIdPrefixInformation = ExAllocatePool(PagedPool, KeyNameBufferLength + sizeof(WCHAR));
if (!ParentIdPrefixInformation)
{
- Status = STATUS_INSUFFICIENT_RESOURCES;
- goto cleanup;
+ return STATUS_INSUFFICIENT_RESOURCES;
}
-
KeyName.Buffer = ExAllocatePool(PagedPool, (49 * sizeof(WCHAR)) + DeviceNode->Parent->InstancePath.Length);
if (!KeyName.Buffer)
{
0,
REG_SZ,
(PVOID)KeyValue.Buffer,
- (wcslen(KeyValue.Buffer) + 1) * sizeof(WCHAR));
+ ((ULONG)wcslen(KeyValue.Buffer) + 1) * sizeof(WCHAR));
cleanup:
if (NT_SUCCESS(Status))
return Status;
}
-
-/*
- * IopActionInterrogateDeviceStack
- *
- * Retrieve information for all (direct) child nodes of a parent node.
- *
- * Parameters
- * DeviceNode
- * Pointer to device node.
- * Context
- * Pointer to parent node to retrieve child node information for.
- *
- * Remarks
- * We only return a status code indicating an error (STATUS_UNSUCCESSFUL)
- * when we reach a device node which is not a direct child of the device
- * node for which we retrieve information of child nodes for. Any errors
- * that occur is logged instead so that all child services have a chance
- * of being interrogated.
- */
-
NTSTATUS
-IopActionInterrogateDeviceStack(PDEVICE_NODE DeviceNode,
- PVOID Context)
+IopQueryHardwareIds(PDEVICE_NODE DeviceNode,
+ HANDLE InstanceKey)
{
- IO_STATUS_BLOCK IoStatusBlock;
- PDEVICE_NODE ParentDeviceNode;
- WCHAR InstancePath[MAX_PATH];
IO_STACK_LOCATION Stack;
- NTSTATUS Status;
+ IO_STATUS_BLOCK IoStatusBlock;
PWSTR Ptr;
- USHORT Length;
- USHORT TotalLength;
- ULONG RequiredLength;
- LCID LocaleId;
- HANDLE InstanceKey = NULL;
UNICODE_STRING ValueName;
- UNICODE_STRING ParentIdPrefix = { 0, 0, NULL };
- DEVICE_CAPABILITIES DeviceCapabilities;
-
- DPRINT("IopActionInterrogateDeviceStack(%p, %p)\n", DeviceNode, Context);
- DPRINT("PDO 0x%p\n", DeviceNode->PhysicalDeviceObject);
-
- ParentDeviceNode = (PDEVICE_NODE)Context;
-
- /*
- * 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;
- }
-
- /*
- * Make sure this device node is a direct child of the parent device node
- * that is given as an argument
- */
-
- if (DeviceNode->Parent != ParentDeviceNode)
- {
- /* Stop the traversal immediately and indicate successful operation */
- DPRINT("Stop\n");
- return STATUS_UNSUCCESSFUL;
- }
-
- /* Get Locale ID */
- Status = ZwQueryDefaultLocale(FALSE, &LocaleId);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("ZwQueryDefaultLocale() failed with status 0x%lx\n", Status);
- return Status;
- }
-
- /*
- * FIXME: For critical errors, cleanup and disable device, but always
- * return STATUS_SUCCESS.
- */
+ NTSTATUS Status;
+ ULONG Length, TotalLength;
- DPRINT("Sending IRP_MN_QUERY_ID.BusQueryDeviceID to device stack\n");
+ DPRINT("Sending IRP_MN_QUERY_ID.BusQueryHardwareIDs to device stack\n");
- Stack.Parameters.QueryId.IdType = BusQueryDeviceID;
+ RtlZeroMemory(&Stack, sizeof(Stack));
+ Stack.Parameters.QueryId.IdType = BusQueryHardwareIDs;
Status = IopInitiatePnpIrp(DeviceNode->PhysicalDeviceObject,
&IoStatusBlock,
IRP_MN_QUERY_ID,
&Stack);
if (NT_SUCCESS(Status))
{
- /* Copy the device id string */
- wcscpy(InstancePath, (PWSTR)IoStatusBlock.Information);
-
/*
* FIXME: Check for valid characters, if there is invalid characters
* then bugcheck.
*/
- }
- else
- {
- DPRINT("IopInitiatePnpIrp() failed (Status %x)\n", Status);
- }
-
- DPRINT("Sending IRP_MN_QUERY_CAPABILITIES to device stack (after enumeration)\n");
+ TotalLength = 0;
+ Ptr = (PWSTR)IoStatusBlock.Information;
+ DPRINT("Hardware IDs:\n");
+ while (*Ptr)
+ {
+ DPRINT(" %S\n", Ptr);
+ Length = (ULONG)wcslen(Ptr) + 1;
- Status = IopQueryDeviceCapabilities(DeviceNode, &DeviceCapabilities);
- if (!NT_SUCCESS(Status))
+ Ptr += Length;
+ TotalLength += Length;
+ }
+ DPRINT("TotalLength: %hu\n", TotalLength);
+ DPRINT("\n");
+
+ RtlInitUnicodeString(&ValueName, L"HardwareID");
+ Status = ZwSetValueKey(InstanceKey,
+ &ValueName,
+ 0,
+ REG_MULTI_SZ,
+ (PVOID)IoStatusBlock.Information,
+ (TotalLength + 1) * sizeof(WCHAR));
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("ZwSetValueKey() failed (Status %lx)\n", Status);
+ }
+ }
+ else
+ {
+ DPRINT("IopInitiatePnpIrp() failed (Status %x)\n", Status);
+ }
+
+ return Status;
+}
+
+NTSTATUS
+IopQueryCompatibleIds(PDEVICE_NODE DeviceNode,
+ HANDLE InstanceKey)
+{
+ IO_STACK_LOCATION Stack;
+ IO_STATUS_BLOCK IoStatusBlock;
+ PWSTR Ptr;
+ UNICODE_STRING ValueName;
+ NTSTATUS Status;
+ ULONG Length, TotalLength;
+
+ DPRINT("Sending IRP_MN_QUERY_ID.BusQueryCompatibleIDs to device stack\n");
+
+ RtlZeroMemory(&Stack, sizeof(Stack));
+ Stack.Parameters.QueryId.IdType = BusQueryCompatibleIDs;
+ Status = IopInitiatePnpIrp(
+ DeviceNode->PhysicalDeviceObject,
+ &IoStatusBlock,
+ IRP_MN_QUERY_ID,
+ &Stack);
+ if (NT_SUCCESS(Status) && IoStatusBlock.Information)
+ {
+ /*
+ * FIXME: Check for valid characters, if there is invalid characters
+ * then bugcheck.
+ */
+ TotalLength = 0;
+ Ptr = (PWSTR)IoStatusBlock.Information;
+ DPRINT("Compatible IDs:\n");
+ while (*Ptr)
+ {
+ DPRINT(" %S\n", Ptr);
+ Length = (ULONG)wcslen(Ptr) + 1;
+
+ Ptr += Length;
+ TotalLength += Length;
+ }
+ DPRINT("TotalLength: %hu\n", TotalLength);
+ DPRINT("\n");
+
+ RtlInitUnicodeString(&ValueName, L"CompatibleIDs");
+ Status = ZwSetValueKey(InstanceKey,
+ &ValueName,
+ 0,
+ REG_MULTI_SZ,
+ (PVOID)IoStatusBlock.Information,
+ (TotalLength + 1) * sizeof(WCHAR));
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("ZwSetValueKey() failed (Status %lx) or no Compatible ID returned\n", Status);
+ }
+ }
+ else
{
- DPRINT("IopInitiatePnpIrp() failed (Status 0x%08lx)\n", Status);
+ DPRINT("IopInitiatePnpIrp() failed (Status %x)\n", Status);
+ }
+
+ return Status;
+}
+
+
+/*
+ * IopActionInterrogateDeviceStack
+ *
+ * Retrieve information for all (direct) child nodes of a parent node.
+ *
+ * Parameters
+ * DeviceNode
+ * Pointer to device node.
+ * Context
+ * Pointer to parent node to retrieve child node information for.
+ *
+ * Remarks
+ * Any errors that occur are logged instead so that all child services have a chance
+ * of being interrogated.
+ */
+
+NTSTATUS
+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;
+
+ DPRINT("IopActionInterrogateDeviceStack(%p, %p)\n", DeviceNode, Context);
+ DPRINT("PDO 0x%p\n", DeviceNode->PhysicalDeviceObject);
+
+ ParentDeviceNode = (PDEVICE_NODE)Context;
+
+ /*
+ * 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;
+ }
+
+ /*
+ * 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;
+ }
+
+ /* Skip processing if it was already completed before */
+ if (DeviceNode->Flags & DNF_PROCESSED)
+ {
+ /* Nothing to do */
+ 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;
+ }
+
+ /*
+ * FIXME: For critical errors, cleanup and disable device, but always
+ * return STATUS_SUCCESS.
+ */
+
+ DPRINT("Sending IRP_MN_QUERY_ID.BusQueryDeviceID to device stack\n");
+
+ 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);
+
+ /*
+ * FIXME: Check for valid characters, if there is invalid characters
+ * then bugcheck.
+ */
+ }
+ else
+ {
+ DPRINT1("IopInitiatePnpIrp() failed (Status %x)\n", Status);
+
+ /* We have to return success otherwise we abort the traverse operation */
+ return STATUS_SUCCESS;
+ }
+
+ 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);
+
+ /* We have to return success otherwise we abort the traverse operation */
+ return STATUS_SUCCESS;
}
/* This bit is only check after enumeration */
Status = IopGetParentIdPrefix(DeviceNode, &ParentIdPrefix);
if (!NT_SUCCESS(Status))
{
- DPRINT("IopGetParentIdPrefix() failed (Status 0x%08lx)\n", Status);
+ DPRINT1("IopGetParentIdPrefix() failed (Status 0x%08lx)\n", Status);
+
+ /* We have to return success otherwise we abort the traverse operation */
+ return STATUS_SUCCESS;
}
}
}
RtlFreeUnicodeString(&ParentIdPrefix);
- if (!RtlCreateUnicodeString(&DeviceNode->InstancePath, InstancePath))
+ if (!RtlCreateUnicodeString(&InstancePathU, InstancePath))
{
DPRINT("No resources\n");
/* FIXME: Cleanup and disable device */
}
+ /* Verify that this is not a duplicate */
+ OldDeviceObject = IopGetDeviceObjectFromDeviceInstance(&InstancePathU);
+ if (OldDeviceObject != NULL)
+ {
+ PDEVICE_NODE OldDeviceNode = IopGetDeviceNode(OldDeviceObject);
+
+ 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);
+
+ KeBugCheckEx(PNP_DETECTED_FATAL_ERROR,
+ 0x01,
+ (ULONG_PTR)DeviceNode->PhysicalDeviceObject,
+ (ULONG_PTR)OldDeviceObject,
+ 0);
+ }
+
+ DeviceNode->InstancePath = InstancePathU;
+
DPRINT("InstancePath is %S\n", DeviceNode->InstancePath.Buffer);
/*
if (!NT_SUCCESS(Status))
{
DPRINT1("Failed to create the instance key! (Status %lx)\n", Status);
- }
-
- DPRINT("Sending IRP_MN_QUERY_ID.BusQueryHardwareIDs to device stack\n");
-
- Stack.Parameters.QueryId.IdType = BusQueryHardwareIDs;
- Status = IopInitiatePnpIrp(DeviceNode->PhysicalDeviceObject,
- &IoStatusBlock,
- IRP_MN_QUERY_ID,
- &Stack);
- if (NT_SUCCESS(Status))
- {
- /*
- * FIXME: Check for valid characters, if there is invalid characters
- * then bugcheck.
- */
- TotalLength = 0;
- Ptr = (PWSTR)IoStatusBlock.Information;
- DPRINT("Hardware IDs:\n");
- while (*Ptr)
- {
- DPRINT(" %S\n", Ptr);
- Length = wcslen(Ptr) + 1;
-
- Ptr += Length;
- TotalLength += Length;
- }
- DPRINT("TotalLength: %hu\n", TotalLength);
- DPRINT("\n");
- RtlInitUnicodeString(&ValueName, L"HardwareID");
- Status = ZwSetValueKey(InstanceKey,
- &ValueName,
- 0,
- REG_MULTI_SZ,
- (PVOID)IoStatusBlock.Information,
- (TotalLength + 1) * sizeof(WCHAR));
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("ZwSetValueKey() failed (Status %lx)\n", Status);
- }
- }
- else
- {
- DPRINT("IopInitiatePnpIrp() failed (Status %x)\n", Status);
+ /* We have to return success otherwise we abort the traverse operation */
+ return STATUS_SUCCESS;
}
- DPRINT("Sending IRP_MN_QUERY_ID.BusQueryCompatibleIDs to device stack\n");
-
- Stack.Parameters.QueryId.IdType = BusQueryCompatibleIDs;
- Status = IopInitiatePnpIrp(
- DeviceNode->PhysicalDeviceObject,
- &IoStatusBlock,
- IRP_MN_QUERY_ID,
- &Stack);
- if (NT_SUCCESS(Status) && IoStatusBlock.Information)
- {
- /*
- * FIXME: Check for valid characters, if there is invalid characters
- * then bugcheck.
- */
- TotalLength = 0;
- Ptr = (PWSTR)IoStatusBlock.Information;
- DPRINT("Compatible IDs:\n");
- while (*Ptr)
- {
- DPRINT(" %S\n", Ptr);
- Length = wcslen(Ptr) + 1;
-
- Ptr += Length;
- TotalLength += Length;
- }
- DPRINT("TotalLength: %hu\n", TotalLength);
- DPRINT("\n");
+ IopQueryHardwareIds(DeviceNode, InstanceKey);
- RtlInitUnicodeString(&ValueName, L"CompatibleIDs");
- Status = ZwSetValueKey(InstanceKey,
- &ValueName,
- 0,
- REG_MULTI_SZ,
- (PVOID)IoStatusBlock.Information,
- (TotalLength + 1) * sizeof(WCHAR));
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("ZwSetValueKey() failed (Status %lx) or no Compatible ID returned\n", Status);
- }
- }
- else
- {
- DPRINT("IopInitiatePnpIrp() failed (Status %x)\n", Status);
- }
+ IopQueryCompatibleIds(DeviceNode, InstanceKey);
DPRINT("Sending IRP_MN_QUERY_DEVICE_TEXT.DeviceTextDescription to device stack\n");
0,
REG_SZ,
(PVOID)IoStatusBlock.Information,
- (wcslen((PWSTR)IoStatusBlock.Information) + 1) * sizeof(WCHAR));
+ ((ULONG)wcslen((PWSTR)IoStatusBlock.Information) + 1) * sizeof(WCHAR));
}
else
{
0,
REG_SZ,
(PVOID)IoStatusBlock.Information,
- (wcslen((PWSTR)IoStatusBlock.Information) + 1) * sizeof(WCHAR));
+ ((ULONG)wcslen((PWSTR)IoStatusBlock.Information) + 1) * sizeof(WCHAR));
if (!NT_SUCCESS(Status))
{
DPRINT1("ZwSetValueKey() failed (Status %lx)\n", Status);
ULONG i;
BOOLEAN Found;
+ if (DeviceNode == IopRootDeviceNode)
+ return;
+
while (Child != NULL)
{
NextChild = Child->Sibling;
Found = FALSE;
- for (i = 0; i < DeviceRelations->Count; i++)
+ for (i = 0; DeviceRelations && i < DeviceRelations->Count; i++)
{
if (IopGetDeviceNode(DeviceRelations->Objects[i]) == Child)
{
}
}
- if (!Found)
+ if (!Found && !(Child->Flags & DNF_WILL_BE_REMOVED))
{
+ /* Send removal IRPs to all of its children */
+ IopPrepareDeviceForRemoval(Child->PhysicalDeviceObject, TRUE);
+
+ /* Send the surprise removal IRP */
IopSendSurpriseRemoval(Child->PhysicalDeviceObject);
/* Tell the user-mode PnP manager that a device was removed */
IopQueueTargetDeviceEvent(&GUID_DEVICE_SURPRISE_REMOVAL,
&Child->InstancePath);
+ /* Send the remove device IRP */
IopSendRemoveDevice(Child->PhysicalDeviceObject);
}
DeviceRelations = (PDEVICE_RELATIONS)IoStatusBlock.Information;
+ /*
+ * Send removal IRPs for devices that have disappeared
+ * NOTE: This code handles the case where no relations are specified
+ */
+ IopHandleDeviceRemoval(DeviceNode, DeviceRelations);
+
+ /* Now we bail if nothing was returned */
if (!DeviceRelations)
{
+ /* We're all done */
DPRINT("No PDOs\n");
- return STATUS_UNSUCCESSFUL;
+ return STATUS_SUCCESS;
}
DPRINT("Got %u PDOs\n", DeviceRelations->Count);
-
- /*
- * Send removal IRPs for devices that have disappeared
- */
- IopHandleDeviceRemoval(DeviceNode, DeviceRelations);
/*
* Create device nodes for all discovered devices
{
/* Ignore this DO */
DPRINT1("IopCreateDeviceNode() failed with status 0x%08x. Skipping PDO %u\n", Status, i);
- ObDereferenceObject(ChildDeviceNode);
+ ObDereferenceObject(ChildDeviceObject);
}
}
else
* Pointer to parent node to retrieve child node configuration for.
*
* Remarks
- * We only return a status code indicating an error (STATUS_UNSUCCESSFUL)
- * when we reach a device node which is not a direct child of the device
- * node for which we configure child services for. Any errors that occur is
- * logged instead so that all child services have a chance of beeing
+ * Any errors that occur are logged instead so that all child services have a chance of beeing
* configured.
*/
* Make sure this device node is a direct child of the parent device node
* that is given as an argument
*/
+
if (DeviceNode->Parent != ParentDeviceNode)
{
- /* Stop the traversal immediately and indicate successful operation */
- DPRINT("Stop\n");
- return STATUS_UNSUCCESSFUL;
+ DPRINT("Skipping 2+ level child\n");
+ return STATUS_SUCCESS;
+ }
+
+ if (!(DeviceNode->Flags & DNF_PROCESSED))
+ {
+ DPRINT1("Child not ready to be configured\n");
+ return STATUS_SUCCESS;
}
- if (!IopDeviceNodeHasFlag(DeviceNode, DNF_DISABLED))
+ if (!(DeviceNode->Flags & (DNF_DISABLED | DNF_STARTED | DNF_ADDED)))
{
WCHAR RegKeyBuffer[MAX_PATH];
UNICODE_STRING RegKey;
+ /* Install the service for this if it's in the CDDB */
+ IopInstallCriticalDevice(DeviceNode);
+
RegKey.Length = 0;
RegKey.MaximumLength = sizeof(RegKeyBuffer);
RegKey.Buffer = RegKeyBuffer;
if (NT_SUCCESS(IopQueryDeviceCapabilities(DeviceNode, &DeviceCaps)) &&
DeviceCaps.RawDeviceOK)
{
- DPRINT1("%wZ is using parent bus driver (%wZ)\n", &DeviceNode->InstancePath, &ParentDeviceNode->ServiceName);
+ DPRINT("%wZ is using parent bus driver (%wZ)\n", &DeviceNode->InstancePath, &ParentDeviceNode->ServiceName);
DeviceNode->ServiceName.Length = 0;
DeviceNode->ServiceName.MaximumLength = 0;
/* Device has a ClassGUID value, but no Service value.
* Suppose it is using the NULL driver, so state the
* device is started */
- DPRINT1("%wZ is using NULL driver\n", &DeviceNode->InstancePath);
+ DPRINT("%wZ is using NULL driver\n", &DeviceNode->InstancePath);
IopDeviceNodeSetFlag(DeviceNode, DNF_STARTED);
}
else
{
+ DeviceNode->Problem = CM_PROB_FAILED_INSTALL;
IopDeviceNodeSetFlag(DeviceNode, DNF_DISABLED);
}
return STATUS_SUCCESS;
*
* Remarks
* If the driver image for a service is not loaded and initialized
- * it is done here too. We only return a status code indicating an
- * error (STATUS_UNSUCCESSFUL) when we reach a device node which is
- * not a direct child of the device node for which we initialize
- * child services for. Any errors that occur is logged instead so
+ * it is done here too. Any errors that occur are logged instead so
* that all child services have a chance of being initialized.
*/
}
/*
- * Make sure this device node is a direct child of the parent device node
- * that is given as an argument
+ * We don't want to check for a direct child because
+ * this function is called during boot to reinitialize
+ * devices with drivers that couldn't load yet due to
+ * stage 0 limitations (ie can't load from disk yet).
*/
-#if 0
- if (DeviceNode->Parent != ParentDeviceNode)
+
+ if (!(DeviceNode->Flags & DNF_PROCESSED))
{
- /*
- * Stop the traversal immediately and indicate unsuccessful operation
- */
- DPRINT("Stop\n");
- return STATUS_UNSUCCESSFUL;
+ DPRINT1("Child not ready to be added\n");
+ return STATUS_SUCCESS;
}
-#endif
+
if (IopDeviceNodeHasFlag(DeviceNode, DNF_STARTED) ||
IopDeviceNodeHasFlag(DeviceNode, DNF_ADDED) ||
IopDeviceNodeHasFlag(DeviceNode, DNF_DISABLED))
if (NT_SUCCESS(Status) || Status == STATUS_IMAGE_ALREADY_LOADED)
{
- /* STATUS_IMAGE_ALREADY_LOADED means this driver
- was loaded by the bootloader */
- if ((Status != STATUS_IMAGE_ALREADY_LOADED) ||
- (Status == STATUS_IMAGE_ALREADY_LOADED && !DriverObject))
- {
- /* Initialize the driver */
- Status = IopInitializeDriverModule(DeviceNode, ModuleObject,
+ /* Initialize the driver */
+ Status = IopInitializeDriverModule(DeviceNode, ModuleObject,
&DeviceNode->ServiceName, FALSE, &DriverObject);
- }
- else
- {
- Status = STATUS_SUCCESS;
- }
+ if (!NT_SUCCESS(Status)) DeviceNode->Problem = CM_PROB_FAILED_DRIVER_ENTRY;
+ }
+ else if (Status == STATUS_DRIVER_UNABLE_TO_LOAD)
+ {
+ DPRINT1("Service '%wZ' is disabled\n", &DeviceNode->ServiceName);
+ DeviceNode->Problem = CM_PROB_DISABLED_SERVICE;
}
else
{
- DPRINT1("IopLoadServiceModule(%wZ) failed with status 0x%08x\n",
+ DPRINT("IopLoadServiceModule(%wZ) failed with status 0x%08x\n",
&DeviceNode->ServiceName, Status);
+ if (!BootDrivers) DeviceNode->Problem = CM_PROB_DRIVER_FAILED_LOAD;
}
}
{
/* Initialize the device, including all filters */
Status = PipCallDriverAddDevice(DeviceNode, FALSE, DriverObject);
+
+ /* Remove the extra reference */
+ ObDereferenceObject(DriverObject);
}
else
{
if (!BootDrivers)
{
IopDeviceNodeSetFlag(DeviceNode, DNF_DISABLED);
- IopDeviceNodeSetFlag(DeviceNode, DNF_START_FAILED);
- /* FIXME: Log the error (possibly in IopInitializeDeviceNodeService) */
- DPRINT1("Initialization of service %S failed (Status %x)\n",
- DeviceNode->ServiceName.Buffer, Status);
}
}
}
ULONG BootResourcesLength;
NTSTATUS Status;
- const UNICODE_STRING IdentifierPci = RTL_CONSTANT_STRING(L"PCI");
- UNICODE_STRING HardwareIdPci = RTL_CONSTANT_STRING(L"*PNP0A03\0");
- static ULONG DeviceIndexPci = 0;
const UNICODE_STRING IdentifierSerial = RTL_CONSTANT_STRING(L"SerialController");
UNICODE_STRING HardwareIdSerial = RTL_CONSTANT_STRING(L"*PNP0501\0");
static ULONG DeviceIndexSerial = 0;
const UNICODE_STRING IdentifierFloppy = RTL_CONSTANT_STRING(L"FloppyDiskPeripheral");
UNICODE_STRING HardwareIdFloppy = RTL_CONSTANT_STRING(L"*PNP0700\0");
static ULONG DeviceIndexFloppy = 0;
- const UNICODE_STRING IdentifierIsa = RTL_CONSTANT_STRING(L"ISA");
- UNICODE_STRING HardwareIdIsa = RTL_CONSTANT_STRING(L"*PNP0A00\0");
- static ULONG DeviceIndexIsa = 0;
UNICODE_STRING HardwareIdKey;
PUNICODE_STRING pHardwareId;
ULONG DeviceIndex = 0;
pHardwareId = &HardwareIdFloppy;
DeviceIndex = DeviceIndexFloppy++;
}
- else if (NT_SUCCESS(Status))
- {
- /* Try to also match the device identifier */
- if (RtlCompareUnicodeString(&ValueName, &IdentifierPci, FALSE) == 0)
- {
- pHardwareId = &HardwareIdPci;
- DeviceIndex = DeviceIndexPci++;
- }
- else if (RtlCompareUnicodeString(&ValueName, &IdentifierIsa, FALSE) == 0)
- {
- pHardwareId = &HardwareIdIsa;
- DeviceIndex = DeviceIndexIsa++;
- }
- else
- {
- DPRINT("Unknown device '%wZ'\n", &ValueName);
- goto nextdevice;
- }
- }
else
{
/* Unknown key path */
&ObjectAttributes,
0,
NULL,
- REG_OPTION_NON_VOLATILE,
+ ExpInTextModeSetup ? REG_OPTION_VOLATILE : 0,
NULL);
if (!NT_SUCCESS(Status))
{
&ObjectAttributes,
0,
NULL,
- REG_OPTION_NON_VOLATILE,
+ ExpInTextModeSetup ? REG_OPTION_VOLATILE : 0,
NULL);
ZwClose(hLevel1Key);
if (!NT_SUCCESS(Status))
}
static BOOLEAN INIT_FUNCTION
-IopIsAcpiComputer(VOID)
+IopIsFirmwareMapperDisabled(VOID)
{
-#ifndef ENABLE_ACPI
- return FALSE;
-#else
- UNICODE_STRING MultiKeyPathU = RTL_CONSTANT_STRING(L"\\Registry\\Machine\\HARDWARE\\DESCRIPTION\\System\\MultifunctionAdapter");
- UNICODE_STRING IdentifierU = RTL_CONSTANT_STRING(L"Identifier");
- UNICODE_STRING AcpiBiosIdentifier = RTL_CONSTANT_STRING(L"ACPI BIOS");
+ UNICODE_STRING KeyPathU = RTL_CONSTANT_STRING(L"\\Registry\\Machine\\SYSTEM\\CURRENTCONTROLSET\\Control\\Pnp");
+ UNICODE_STRING KeyNameU = RTL_CONSTANT_STRING(L"DisableFirmwareMapper");
OBJECT_ATTRIBUTES ObjectAttributes;
- PKEY_BASIC_INFORMATION pDeviceInformation = NULL;
- ULONG DeviceInfoLength = sizeof(KEY_BASIC_INFORMATION) + 50 * sizeof(WCHAR);
- PKEY_VALUE_PARTIAL_INFORMATION pValueInformation = NULL;
- ULONG ValueInfoLength = sizeof(KEY_VALUE_PARTIAL_INFORMATION) + 50 * sizeof(WCHAR);
- ULONG RequiredSize;
- ULONG IndexDevice = 0;
- UNICODE_STRING DeviceName, ValueName;
- HANDLE hDevicesKey = NULL;
- HANDLE hDeviceKey = NULL;
+ HANDLE hPnpKey;
+ PKEY_VALUE_PARTIAL_INFORMATION KeyInformation;
+ ULONG DesiredLength, Length;
+ ULONG KeyValue = 0;
NTSTATUS Status;
- BOOLEAN ret = FALSE;
- InitializeObjectAttributes(&ObjectAttributes, &MultiKeyPathU, OBJ_KERNEL_HANDLE | OBJ_CASE_INSENSITIVE, NULL, NULL);
- Status = ZwOpenKey(&hDevicesKey, KEY_ENUMERATE_SUB_KEYS, &ObjectAttributes);
- if (!NT_SUCCESS(Status))
+ InitializeObjectAttributes(&ObjectAttributes, &KeyPathU, OBJ_KERNEL_HANDLE | OBJ_CASE_INSENSITIVE, NULL, NULL);
+ Status = ZwOpenKey(&hPnpKey, KEY_QUERY_VALUE, &ObjectAttributes);
+ if (NT_SUCCESS(Status))
{
- DPRINT("ZwOpenKey() failed with status 0x%08lx\n", Status);
- goto cleanup;
- }
+ Status = ZwQueryValueKey(hPnpKey,
+ &KeyNameU,
+ KeyValuePartialInformation,
+ NULL,
+ 0,
+ &DesiredLength);
+ if ((Status == STATUS_BUFFER_TOO_SMALL) ||
+ (Status == STATUS_BUFFER_OVERFLOW))
+ {
+ Length = DesiredLength;
+ KeyInformation = ExAllocatePool(PagedPool, Length);
+ if (KeyInformation)
+ {
+ Status = ZwQueryValueKey(hPnpKey,
+ &KeyNameU,
+ KeyValuePartialInformation,
+ KeyInformation,
+ Length,
+ &DesiredLength);
+ if (NT_SUCCESS(Status) && KeyInformation->DataLength == sizeof(ULONG))
+ {
+ KeyValue = (ULONG)(*KeyInformation->Data);
+ }
+ else
+ {
+ DPRINT1("ZwQueryValueKey(%wZ%wZ) failed\n", &KeyPathU, &KeyNameU);
+ }
- pDeviceInformation = ExAllocatePool(PagedPool, DeviceInfoLength);
- if (!pDeviceInformation)
- {
- DPRINT("ExAllocatePool() failed\n");
- Status = STATUS_NO_MEMORY;
- goto cleanup;
- }
+ ExFreePool(KeyInformation);
+ }
+ else
+ {
+ DPRINT1("Failed to allocate memory for registry query\n");
+ }
+ }
+ else
+ {
+ DPRINT1("ZwQueryValueKey(%wZ%wZ) failed with status 0x%08lx\n", &KeyPathU, &KeyNameU, Status);
+ }
- pValueInformation = ExAllocatePool(PagedPool, ValueInfoLength);
- if (!pDeviceInformation)
- {
- DPRINT("ExAllocatePool() failed\n");
- Status = STATUS_NO_MEMORY;
- goto cleanup;
+ ZwClose(hPnpKey);
}
-
- while (TRUE)
+ else
{
- Status = ZwEnumerateKey(hDevicesKey, IndexDevice, KeyBasicInformation, pDeviceInformation, DeviceInfoLength, &RequiredSize);
- if (Status == STATUS_NO_MORE_ENTRIES)
- break;
- else if (Status == STATUS_BUFFER_OVERFLOW || Status == STATUS_BUFFER_TOO_SMALL)
- {
- ExFreePool(pDeviceInformation);
- DeviceInfoLength = RequiredSize;
- pDeviceInformation = ExAllocatePool(PagedPool, DeviceInfoLength);
- if (!pDeviceInformation)
- {
- DPRINT("ExAllocatePool() failed\n");
- Status = STATUS_NO_MEMORY;
- goto cleanup;
- }
- Status = ZwEnumerateKey(hDevicesKey, IndexDevice, KeyBasicInformation, pDeviceInformation, DeviceInfoLength, &RequiredSize);
- }
- if (!NT_SUCCESS(Status))
- {
- DPRINT("ZwEnumerateKey() failed with status 0x%08lx\n", Status);
- goto cleanup;
- }
- IndexDevice++;
-
- /* Open device key */
- DeviceName.Length = DeviceName.MaximumLength = pDeviceInformation->NameLength;
- DeviceName.Buffer = pDeviceInformation->Name;
- InitializeObjectAttributes(&ObjectAttributes, &DeviceName, OBJ_KERNEL_HANDLE, hDevicesKey, NULL);
- Status = ZwOpenKey(
- &hDeviceKey,
- KEY_QUERY_VALUE,
- &ObjectAttributes);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("ZwOpenKey() failed with status 0x%08lx\n", Status);
- goto cleanup;
- }
-
- /* Read identifier */
- Status = ZwQueryValueKey(hDeviceKey, &IdentifierU, KeyValuePartialInformation, pValueInformation, ValueInfoLength, &RequiredSize);
- if (Status == STATUS_BUFFER_OVERFLOW || Status == STATUS_BUFFER_TOO_SMALL)
- {
- ExFreePool(pValueInformation);
- ValueInfoLength = RequiredSize;
- pValueInformation = ExAllocatePool(PagedPool, ValueInfoLength);
- if (!pValueInformation)
- {
- DPRINT("ExAllocatePool() failed\n");
- Status = STATUS_NO_MEMORY;
- goto cleanup;
- }
- Status = ZwQueryValueKey(hDeviceKey, &IdentifierU, KeyValuePartialInformation, pValueInformation, ValueInfoLength, &RequiredSize);
- }
- if (!NT_SUCCESS(Status))
- {
- DPRINT("ZwQueryValueKey() failed with status 0x%08lx\n", Status);
- goto nextdevice;
- }
- else if (pValueInformation->Type != REG_SZ)
- {
- DPRINT("Wrong registry type: got 0x%lx, expected 0x%lx\n", pValueInformation->Type, REG_SZ);
- goto nextdevice;
- }
-
- ValueName.Length = ValueName.MaximumLength = pValueInformation->DataLength;
- ValueName.Buffer = (PWCHAR)pValueInformation->Data;
- if (ValueName.Length >= sizeof(WCHAR) && ValueName.Buffer[ValueName.Length / sizeof(WCHAR) - 1] == UNICODE_NULL)
- ValueName.Length -= sizeof(WCHAR);
- if (RtlCompareUnicodeString(&ValueName, &AcpiBiosIdentifier, FALSE) == 0)
- {
- DPRINT("Found ACPI BIOS\n");
- ret = TRUE;
- goto cleanup;
- }
-
-nextdevice:
- ZwClose(hDeviceKey);
- hDeviceKey = NULL;
+ DPRINT1("ZwOpenKey(%wZ) failed with status 0x%08lx\n", &KeyPathU, Status);
}
-cleanup:
- if (pDeviceInformation)
- ExFreePool(pDeviceInformation);
- if (pValueInformation)
- ExFreePool(pValueInformation);
- if (hDevicesKey)
- ZwClose(hDevicesKey);
- if (hDeviceKey)
- ZwClose(hDeviceKey);
- return ret;
-#endif
+ DPRINT1("Firmware mapper is %s\n", KeyValue != 0 ? "disabled" : "enabled");
+
+ return (KeyValue != 0) ? TRUE : FALSE;
}
NTSTATUS
UNICODE_STRING EnumU = RTL_CONSTANT_STRING(L"\\Registry\\Machine\\SYSTEM\\CurrentControlSet\\Enum");
UNICODE_STRING RootPathU = RTL_CONSTANT_STRING(L"Root");
UNICODE_STRING MultiKeyPathU = RTL_CONSTANT_STRING(L"\\Registry\\Machine\\HARDWARE\\DESCRIPTION\\System\\MultifunctionAdapter");
- UNICODE_STRING DeviceDescU = RTL_CONSTANT_STRING(L"DeviceDesc");
- UNICODE_STRING HardwareIDU = RTL_CONSTANT_STRING(L"HardwareID");
- UNICODE_STRING LogConfU = RTL_CONSTANT_STRING(L"LogConf");
- UNICODE_STRING HalAcpiDevice = RTL_CONSTANT_STRING(L"ACPI_HAL");
- UNICODE_STRING HalAcpiId = RTL_CONSTANT_STRING(L"0000");
- UNICODE_STRING HalAcpiDeviceDesc = RTL_CONSTANT_STRING(L"HAL ACPI");
- UNICODE_STRING HalAcpiHardwareID = RTL_CONSTANT_STRING(L"*PNP0C08\0");
OBJECT_ATTRIBUTES ObjectAttributes;
- HANDLE hEnum, hRoot, hHalAcpiDevice, hHalAcpiId, hLogConf;
+ HANDLE hEnum, hRoot;
NTSTATUS Status;
- ULONG Disposition;
InitializeObjectAttributes(&ObjectAttributes, &EnumU, OBJ_KERNEL_HANDLE | OBJ_CASE_INSENSITIVE, NULL, NULL);
Status = ZwCreateKey(&hEnum, KEY_CREATE_SUB_KEY, &ObjectAttributes, 0, NULL, 0, NULL);
return Status;
}
- if (IopIsAcpiComputer())
- {
- InitializeObjectAttributes(&ObjectAttributes, &HalAcpiDevice, OBJ_KERNEL_HANDLE | OBJ_CASE_INSENSITIVE, hRoot, NULL);
- Status = ZwCreateKey(&hHalAcpiDevice, KEY_CREATE_SUB_KEY, &ObjectAttributes, 0, NULL, 0, NULL);
- ZwClose(hRoot);
- if (!NT_SUCCESS(Status))
- return Status;
- InitializeObjectAttributes(&ObjectAttributes, &HalAcpiId, OBJ_KERNEL_HANDLE | OBJ_CASE_INSENSITIVE, hHalAcpiDevice, NULL);
- Status = ZwCreateKey(&hHalAcpiId, KEY_CREATE_SUB_KEY | KEY_SET_VALUE, &ObjectAttributes, 0, NULL, 0, &Disposition);
- ZwClose(hHalAcpiDevice);
- if (!NT_SUCCESS(Status))
- return Status;
- if (Disposition == REG_CREATED_NEW_KEY)
- {
- Status = ZwSetValueKey(hHalAcpiId, &DeviceDescU, 0, REG_SZ, HalAcpiDeviceDesc.Buffer, HalAcpiDeviceDesc.MaximumLength);
- if (NT_SUCCESS(Status))
- Status = ZwSetValueKey(hHalAcpiId, &HardwareIDU, 0, REG_MULTI_SZ, HalAcpiHardwareID.Buffer, HalAcpiHardwareID.MaximumLength);
- }
- if (NT_SUCCESS(Status))
- {
- InitializeObjectAttributes(&ObjectAttributes, &LogConfU, OBJ_KERNEL_HANDLE | OBJ_CASE_INSENSITIVE, hHalAcpiId, NULL);
- Status = ZwCreateKey(&hLogConf, 0, &ObjectAttributes, 0, NULL, REG_OPTION_VOLATILE, NULL);
- if (NT_SUCCESS(Status))
- ZwClose(hLogConf);
- }
- ZwClose(hHalAcpiId);
- return Status;
- }
- else
+ if (!IopIsFirmwareMapperDisabled())
{
Status = IopOpenRegistryKeyEx(&hEnum, NULL, &MultiKeyPathU, KEY_ENUMERATE_SUB_KEYS);
if (!NT_SUCCESS(Status))
NULL,
0);
ZwClose(hEnum);
- ZwClose(hRoot);
- return Status;
}
+ else
+ {
+ /* Enumeration is disabled */
+ Status = STATUS_SUCCESS;
+ }
+
+ ZwClose(hRoot);
+
+ return Status;
}
NTSTATUS
OUT PULONG Disposition OPTIONAL)
{
OBJECT_ATTRIBUTES ObjectAttributes;
- ULONG KeyDisposition, RootHandleIndex = 0, i = 1, NestedCloseLevel = 0, Length;
+ ULONG KeyDisposition, RootHandleIndex = 0, i = 1, NestedCloseLevel = 0;
+ USHORT Length;
HANDLE HandleArray[2];
BOOLEAN Recursing = TRUE;
PWCHAR pp, p, p1;
/* Process the parent key name */
for (p = p1; ((p < pp) && (*p != OBJ_NAME_PATH_SEPARATOR)); p++);
- Length = (p - p1) * sizeof(WCHAR);
+ Length = (USHORT)(p - p1) * sizeof(WCHAR);
/* Is there a parent name? */
if (Length)
#define PIP_RETURN_DATA(x, y) {ReturnLength = x; Data = y; Status = STATUS_SUCCESS; break;}
#define PIP_REGISTRY_DATA(x, y) {ValueName = x; ValueType = y; break;}
-#define PIP_UNIMPLEMENTED() {UNIMPLEMENTED; while(TRUE); break;}
+#define PIP_UNIMPLEMENTED() {UNIMPLEMENTED_DBGBREAK(); break;}
/*
* @implemented
NTSTATUS Status = STATUS_BUFFER_TOO_SMALL;
GUID BusTypeGuid;
POBJECT_NAME_INFORMATION ObjectNameInfo = NULL;
+ BOOLEAN NullTerminate = FALSE;
+
DPRINT("IoGetDeviceProperty(0x%p %d)\n", DeviceObject, DeviceProperty);
/* Assume failure */
{
case DevicePropertyBusTypeGuid:
- /* Get the GUID from the internal cache */
+ /* Get the GUID from the internal cache */
Status = PnpBusTypeGuidGet(DeviceNode->ChildBusTypeIndex, &BusTypeGuid);
if (!NT_SUCCESS(Status)) return Status;
/* Get the name from the path */
EnumeratorNameEnd = wcschr(DeviceInstanceName, OBJ_NAME_PATH_SEPARATOR);
ASSERT(EnumeratorNameEnd);
-
+
+ /* This string needs to be NULL-terminated */
+ NullTerminate = TRUE;
+
/* This is the format of the returned data */
- PIP_RETURN_DATA((EnumeratorNameEnd - DeviceInstanceName) * sizeof(WCHAR),
+ PIP_RETURN_DATA((ULONG)(EnumeratorNameEnd - DeviceInstanceName) * sizeof(WCHAR),
DeviceInstanceName);
case DevicePropertyAddress:
/* It's up to the caller to try again */
Status = STATUS_BUFFER_TOO_SMALL;
}
-
+
+ /* This string needs to be NULL-terminated */
+ NullTerminate = TRUE;
+
/* Return if successful */
if (NT_SUCCESS(Status)) PIP_RETURN_DATA(ObjectNameInfo->Name.Length,
ObjectNameInfo->Name.Buffer);
case DevicePropertyRemovalPolicy:
PIP_UNIMPLEMENTED();
case DevicePropertyInstallState:
- PIP_UNIMPLEMENTED();
+ PIP_UNIMPLEMENTED();
case DevicePropertyResourceRequirements:
- PIP_UNIMPLEMENTED();
+ PIP_UNIMPLEMENTED();
case DevicePropertyAllocatedResources:
- PIP_UNIMPLEMENTED();
+ PIP_UNIMPLEMENTED();
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;
else if (NT_SUCCESS(Status))
{
/* We know up-front how much data to expect, check the caller's buffer */
- *ResultLength = ReturnLength;
- if (ReturnLength <= BufferLength)
+ *ResultLength = ReturnLength + (NullTerminate ? sizeof(UNICODE_NULL) : 0);
+ if (*ResultLength <= BufferLength)
{
/* Buffer is all good, copy the data */
RtlCopyMemory(PropertyBuffer, Data, ReturnLength);
- /* Check for properties that require a null-terminated string */
- if ((DeviceProperty == DevicePropertyEnumeratorName) ||
- (DeviceProperty == DevicePropertyPhysicalDeviceObjectName))
+ /* Check if we need to NULL-terminate the string */
+ if (NullTerminate)
{
/* Terminate the string */
((PWCHAR)PropertyBuffer)[ReturnLength / sizeof(WCHAR)] = UNICODE_NULL;
if ((PnPFlags & PNP_DEVICE_REMOVED) ||
((PnPFlags & PNP_DEVICE_FAILED) && !(PnPFlags & PNP_DEVICE_RESOURCE_REQUIREMENTS_CHANGED)))
{
- /* Surprise removal */
-
+ /* Flag it if it's failed */
+ if (PnPFlags & PNP_DEVICE_FAILED) DeviceNode->Problem = CM_PROB_FAILED_POST_START;
+
+ /* Send removal IRPs to all of its children */
+ IopPrepareDeviceForRemoval(PhysicalDeviceObject, TRUE);
+
+ /* Send surprise removal */
IopSendSurpriseRemoval(PhysicalDeviceObject);
/* Tell the user-mode PnP manager that a device was removed */
else if ((PnPFlags & PNP_DEVICE_FAILED) && (PnPFlags & PNP_DEVICE_RESOURCE_REQUIREMENTS_CHANGED))
{
/* Stop for resource rebalance */
-
- if (NT_SUCCESS(IopQueryStopDevice(PhysicalDeviceObject)))
+ Status = IopStopDevice(DeviceNode);
+ if (!NT_SUCCESS(Status))
{
- IopSendStopDevice(PhysicalDeviceObject);
+ DPRINT1("Failed to stop device for rebalancing\n");
- DeviceNode->Flags &= ~(DNF_STARTED | DNF_START_REQUEST_PENDING);
- DeviceNode->Flags |= DNF_STOPPED;
+ /* Stop failed so don't rebalance */
+ PnPFlags &= ~PNP_DEVICE_RESOURCE_REQUIREMENTS_CHANGED;
}
}
DeviceNode->Flags &= ~(DNF_STARTED | DNF_START_REQUEST_PENDING);
DeviceNode->Flags |= DNF_START_FAILED;
- IopSendRemoveDevice(PhysicalDeviceObject);
+ IopRemoveDevice(DeviceNode);
}
}
}
InitializeObjectAttributes(&ObjectAttributes, &KeyName,
OBJ_CASE_INSENSITIVE, *DevInstRegKey, NULL);
Status = ZwCreateKey(DevInstRegKey, DesiredAccess, &ObjectAttributes,
- 0, NULL, REG_OPTION_NON_VOLATILE, NULL);
+ 0, NULL, ExpInTextModeSetup ? REG_OPTION_VOLATILE : 0, NULL);
ZwClose(ObjectAttributes.RootDirectory);
return Status;
}
+static
NTSTATUS
-NTAPI
-IopPrepareDeviceForRemoval(IN PDEVICE_OBJECT DeviceObject)
+IopQueryRemoveChildDevices(PDEVICE_NODE ParentDeviceNode, BOOLEAN Force)
+{
+ 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;
+ while (ChildDeviceNode != NULL)
+ {
+ 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;
+}
+
+static
+VOID
+IopSendRemoveChildDevices(PDEVICE_NODE ParentDeviceNode)
+{
+ 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);
+}
+
+static
+VOID
+IopCancelRemoveChildDevices(PDEVICE_NODE ParentDeviceNode)
+{
+ 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);
+}
+
+static
+NTSTATUS
+IopQueryRemoveDeviceRelations(PDEVICE_RELATIONS DeviceRelations, BOOLEAN Force)
+{
+ /* 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);
+ if (!NT_SUCCESS(Status))
+ {
+ j = i;
+ 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 */
+ for (i = 0; i <= j; i++)
+ {
+ IopCancelPrepareDeviceForRemoval(DeviceRelations->Objects[i]);
+ ObDereferenceObject(DeviceRelations->Objects[i]);
+ DeviceRelations->Objects[i] = NULL;
+ }
+ for (; i < DeviceRelations->Count; i++)
+ {
+ ObDereferenceObject(DeviceRelations->Objects[i]);
+ DeviceRelations->Objects[i] = NULL;
+ }
+ ExFreePool(DeviceRelations);
+
+ return Status;
+}
+
+static
+VOID
+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);
+}
+
+static
+VOID
+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);
+}
+
+VOID
+IopCancelPrepareDeviceForRemoval(PDEVICE_OBJECT DeviceObject)
+{
+ IO_STACK_LOCATION Stack;
+ 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,
+ &Stack);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT("IopInitiatePnpIrp() failed with status 0x%08lx\n", Status);
+ DeviceRelations = NULL;
+ }
+ else
+ {
+ DeviceRelations = (PDEVICE_RELATIONS)IoStatusBlock.Information;
+ }
+
+ if (DeviceRelations)
+ IopCancelRemoveDeviceRelations(DeviceRelations);
+}
+
+NTSTATUS
+IopPrepareDeviceForRemoval(IN PDEVICE_OBJECT DeviceObject, BOOLEAN Force)
{
PDEVICE_NODE DeviceNode = IopGetDeviceNode(DeviceObject);
IO_STACK_LOCATION Stack;
IO_STATUS_BLOCK IoStatusBlock;
PDEVICE_RELATIONS DeviceRelations;
NTSTATUS Status;
- ULONG i;
- if (DeviceNode->UserFlags & DNUF_NOT_DISABLEABLE)
+ if ((DeviceNode->UserFlags & DNUF_NOT_DISABLEABLE) && !Force)
{
DPRINT1("Removal not allowed for %wZ\n", &DeviceNode->InstancePath);
return STATUS_UNSUCCESSFUL;
}
- IopQueueTargetDeviceEvent(&GUID_DEVICE_REMOVE_PENDING,
- &DeviceNode->InstancePath);
-
- if (IopQueryRemoveDevice(DeviceObject) != STATUS_SUCCESS)
+ if (!Force && IopQueryRemoveDevice(DeviceObject) != STATUS_SUCCESS)
{
DPRINT1("Removal vetoed by failing the query remove request\n");
- IopQueueTargetDeviceEvent(&GUID_DEVICE_REMOVAL_VETOED,
- &DeviceNode->InstancePath);
+ IopCancelRemoveDevice(DeviceObject);
return STATUS_UNSUCCESSFUL;
}
Stack.Parameters.QueryDeviceRelations.Type = RemovalRelations;
-
+
Status = IopInitiatePnpIrp(DeviceObject,
&IoStatusBlock,
IRP_MN_QUERY_DEVICE_RELATIONS,
&Stack);
- if (!NT_SUCCESS(Status) || Status == STATUS_PENDING)
+ if (!NT_SUCCESS(Status))
{
DPRINT("IopInitiatePnpIrp() failed with status 0x%08lx\n", Status);
- return Status;
+ DeviceRelations = NULL;
}
-
- DeviceRelations = (PDEVICE_RELATIONS)IoStatusBlock.Information;
-
- if (DeviceRelations)
+ else
{
- for (i = 0; i < DeviceRelations->Count; i++)
- {
- PDEVICE_NODE RelationsDeviceNode = IopGetDeviceNode(DeviceRelations->Objects[i]);
-
- IopQueueTargetDeviceEvent(&GUID_DEVICE_REMOVE_PENDING,
- &RelationsDeviceNode->InstancePath);
-
- if (IopQueryRemoveDevice(DeviceRelations->Objects[i]) != STATUS_SUCCESS)
- {
- DPRINT1("Device removal vetoed by failing a dependent query remove request\n");
-
- IopQueueTargetDeviceEvent(&GUID_DEVICE_REMOVAL_VETOED,
- &RelationsDeviceNode->InstancePath);
-
- Status = STATUS_UNSUCCESSFUL;
-
- goto cleanup;
- }
- else
- {
- IopSendRemoveDevice(DeviceRelations->Objects[i]);
-
- IopQueueTargetDeviceEvent(&GUID_DEVICE_SAFE_REMOVAL,
- &RelationsDeviceNode->InstancePath);
-
- ObDereferenceObject(DeviceRelations->Objects[i]);
-
- DeviceRelations->Objects[i] = NULL;
- }
- }
-
- ExFreePool(DeviceRelations);
-
- DeviceRelations = NULL;
+ DeviceRelations = (PDEVICE_RELATIONS)IoStatusBlock.Information;
}
-
- Status = STATUS_SUCCESS;
-
-cleanup:
+
if (DeviceRelations)
{
- for (i = 0; i < DeviceRelations->Count; i++)
- {
- if (DeviceRelations->Objects[i])
- {
- ObDereferenceObject(DeviceRelations->Objects[i]);
- }
- }
-
- ExFreePool(DeviceRelations);
+ Status = IopQueryRemoveDeviceRelations(DeviceRelations, Force);
+ if (!NT_SUCCESS(Status))
+ return Status;
}
- return Status;
+ Status = IopQueryRemoveChildDevices(DeviceNode, Force);
+ if (!NT_SUCCESS(Status))
+ {
+ if (DeviceRelations)
+ IopCancelRemoveDeviceRelations(DeviceRelations);
+ return Status;
+ }
+
+ DeviceNode->Flags |= DNF_WILL_BE_REMOVED;
+ DeviceNode->Problem = CM_PROB_WILL_BE_REMOVED;
+ if (DeviceRelations)
+ IopSendRemoveDeviceRelations(DeviceRelations);
+ IopSendRemoveChildDevices(DeviceNode);
+
+ return STATUS_SUCCESS;
}
NTSTATUS
DPRINT("Removing device: %wZ\n", &DeviceNode->InstancePath);
- Status = IopPrepareDeviceForRemoval(DeviceNode->PhysicalDeviceObject);
+ Status = IopPrepareDeviceForRemoval(DeviceNode->PhysicalDeviceObject, FALSE);
if (NT_SUCCESS(Status))
{
IopSendRemoveDevice(DeviceNode->PhysicalDeviceObject);
+ IopQueueTargetDeviceEvent(&GUID_DEVICE_SAFE_REMOVAL,
+ &DeviceNode->InstancePath);
return STATUS_SUCCESS;
}
IO_STACK_LOCATION Stack;
DEVICE_CAPABILITIES Capabilities;
NTSTATUS Status;
- ULONG i;
IopQueueTargetDeviceEvent(&GUID_DEVICE_KERNEL_INITIATED_EJECT,
&DeviceNode->InstancePath);
if (IopQueryDeviceCapabilities(DeviceNode, &Capabilities) != STATUS_SUCCESS)
{
- IopQueueTargetDeviceEvent(&GUID_DEVICE_EJECT_VETOED,
- &DeviceNode->InstancePath);
- return;
+ goto cleanup;
}
Stack.Parameters.QueryDeviceRelations.Type = EjectionRelations;
&IoStatusBlock,
IRP_MN_QUERY_DEVICE_RELATIONS,
&Stack);
- if (!NT_SUCCESS(Status) || Status == STATUS_PENDING)
+ if (!NT_SUCCESS(Status))
{
DPRINT("IopInitiatePnpIrp() failed with status 0x%08lx\n", Status);
- IopQueueTargetDeviceEvent(&GUID_DEVICE_EJECT_VETOED,
- &DeviceNode->InstancePath);
- return;
+ DeviceRelations = NULL;
+ }
+ else
+ {
+ DeviceRelations = (PDEVICE_RELATIONS)IoStatusBlock.Information;
}
-
- DeviceRelations = (PDEVICE_RELATIONS)IoStatusBlock.Information;
if (DeviceRelations)
{
- for (i = 0; i < DeviceRelations->Count; i++)
- {
- PDEVICE_NODE RelationsDeviceNode = IopGetDeviceNode(DeviceRelations->Objects[i]);
-
- IopQueueTargetDeviceEvent(&GUID_DEVICE_REMOVE_PENDING,
- &RelationsDeviceNode->InstancePath);
-
- if (IopQueryRemoveDevice(DeviceRelations->Objects[i]) != STATUS_SUCCESS)
- {
- DPRINT1("Device removal vetoed by failing a query remove request (ejection relations)\n");
-
- IopQueueTargetDeviceEvent(&GUID_DEVICE_REMOVAL_VETOED,
- &RelationsDeviceNode->InstancePath);
-
- goto cleanup;
- }
- else
- {
- IopSendRemoveDevice(DeviceRelations->Objects[i]);
-
- IopQueueTargetDeviceEvent(&GUID_DEVICE_SAFE_REMOVAL,
- &RelationsDeviceNode->InstancePath);
-
- ObDereferenceObject(DeviceRelations->Objects[i]);
-
- DeviceRelations->Objects[i] = NULL;
- }
- }
-
- ExFreePool(DeviceRelations);
-
- DeviceRelations = NULL;
+ Status = IopQueryRemoveDeviceRelations(DeviceRelations, FALSE);
+ if (!NT_SUCCESS(Status))
+ goto cleanup;
}
- if (IopPrepareDeviceForRemoval(PhysicalDeviceObject) != STATUS_SUCCESS)
+ Status = IopQueryRemoveChildDevices(DeviceNode, FALSE);
+ if (!NT_SUCCESS(Status))
{
- IopQueueTargetDeviceEvent(&GUID_DEVICE_EJECT_VETOED,
- &DeviceNode->InstancePath);
- return;
+ if (DeviceRelations)
+ IopCancelRemoveDeviceRelations(DeviceRelations);
+ goto cleanup;
+ }
+
+ if (IopPrepareDeviceForRemoval(PhysicalDeviceObject, FALSE) != STATUS_SUCCESS)
+ {
+ if (DeviceRelations)
+ IopCancelRemoveDeviceRelations(DeviceRelations);
+ IopCancelRemoveChildDevices(DeviceNode);
+ goto cleanup;
}
+ if (DeviceRelations)
+ IopSendRemoveDeviceRelations(DeviceRelations);
+ IopSendRemoveChildDevices(DeviceNode);
+
+ DeviceNode->Problem = CM_PROB_HELD_FOR_EJECT;
if (Capabilities.EjectSupported)
{
if (IopSendEject(PhysicalDeviceObject) != STATUS_SUCCESS)
{
- IopQueueTargetDeviceEvent(&GUID_DEVICE_EJECT_VETOED,
- &DeviceNode->InstancePath);
-
- return;
+ goto cleanup;
}
}
else
DeviceNode->Flags |= DNF_DISABLED;
}
+ IopQueueTargetDeviceEvent(&GUID_DEVICE_EJECT,
+ &DeviceNode->InstancePath);
+
+ return;
+
cleanup:
- if (DeviceRelations)
- {
- for (i = 0; i < DeviceRelations->Count; i++)
- {
- if (DeviceRelations->Objects[i])
- {
- ObDereferenceObject(DeviceRelations->Objects[i]);
- }
- }
-
- ExFreePool(DeviceRelations);
-
- IopQueueTargetDeviceEvent(&GUID_DEVICE_EJECT_VETOED,
- &DeviceNode->InstancePath);
- }
- else
- {
- IopQueueTargetDeviceEvent(&GUID_DEVICE_EJECT,
- &DeviceNode->InstancePath);
- }
+ IopQueueTargetDeviceEvent(&GUID_DEVICE_EJECT_VETOED,
+ &DeviceNode->InstancePath);
}
/*
projects / reactos.git / blobdiff