ReactOS  0.4.15-dev-3165-gdf6fff7
devaction.c File Reference
#include <ntoskrnl.h>
#include <debug.h>
Include dependency graph for devaction.c:

Go to the source code of this file.

Classes

struct  _DEVICE_ACTION_REQUEST
 
struct  _ADD_DEV_DRIVERS_LIST
 
struct  _ATTACH_FILTER_DRIVERS_CONTEXT
 

Macros

#define NDEBUG
 
#define MAX_DEVICE_ID_LEN   200
 
#define MAX_SEPARATORS_INSTANCEID   0
 
#define MAX_SEPARATORS_DEVICEID   1
 
#define TAG_PNP_DEVACTION   'aDpP'
 

Typedefs

typedef struct _DEVICE_ACTION_REQUEST DEVICE_ACTION_REQUEST
 
typedef struct _DEVICE_ACTION_REQUESTPDEVICE_ACTION_REQUEST
 
typedef enum _ADD_DEV_DRIVER_TYPE ADD_DEV_DRIVER_TYPE
 
typedef struct _ADD_DEV_DRIVERS_LIST ADD_DEV_DRIVERS_LIST
 
typedef struct _ADD_DEV_DRIVERS_LISTPADD_DEV_DRIVERS_LIST
 
typedef struct _ATTACH_FILTER_DRIVERS_CONTEXT ATTACH_FILTER_DRIVERS_CONTEXT
 
typedef struct _ATTACH_FILTER_DRIVERS_CONTEXTPATTACH_FILTER_DRIVERS_CONTEXT
 

Enumerations

enum  _ADD_DEV_DRIVER_TYPE {
  LowerFilter, LowerClassFilter, DeviceDriver, UpperFilter,
  UpperClassFilter
}
 

Functions

PDEVICE_OBJECT IopGetDeviceObjectFromDeviceInstance (PUNICODE_STRING DeviceInstance)
 
NTSTATUS IopGetParentIdPrefix (PDEVICE_NODE DeviceNode, PUNICODE_STRING ParentIdPrefix)
 
USHORT NTAPI IopGetBusTypeGuidIndex (LPGUID BusTypeGuid)
 
NTSTATUS IopSetDeviceInstanceData (HANDLE InstanceKey, PDEVICE_NODE DeviceNode)
 
VOID NTAPI IopInstallCriticalDevice (PDEVICE_NODE DeviceNode)
 
static VOID IopCancelPrepareDeviceForRemoval (PDEVICE_OBJECT DeviceObject)
 
static NTSTATUS IopPrepareDeviceForRemoval (PDEVICE_OBJECT DeviceObject, BOOLEAN Force)
 
static NTSTATUS IopSetServiceEnumData (_In_ PDEVICE_NODE DeviceNode, _In_ HANDLE InstanceHandle)
 
static BOOLEAN IopValidateID (_In_ PWCHAR Id, _In_ BUS_QUERY_ID_TYPE QueryType)
 
static NTSTATUS IopCreateDeviceInstancePath (_In_ PDEVICE_NODE DeviceNode, _Out_ PUNICODE_STRING InstancePath)
 
static NTSTATUS NTAPI PiAttachFilterDriversCallback (PWSTR ValueName, ULONG ValueType, PVOID ValueData, ULONG ValueLength, PVOID Ctx, PVOID EntryContext)
 Loads and/or returns the driver associated with the registry entry if the driver is enabled. In case of an error, sets up a corresponding Problem to the DeviceNode. More...
 
static NTSTATUS PiAttachFilterDrivers (PLIST_ENTRY DriversListHead, PDEVICE_NODE DeviceNode, HANDLE EnumSubKey, HANDLE ClassKey, BOOLEAN Lower, BOOLEAN LoadDrivers)
 Calls PiAttachFilterDriversCallback for filter drivers (if any) More...
 
static NTSTATUS PiCallDriverAddDevice (_In_ PDEVICE_NODE DeviceNode, _In_ BOOLEAN LoadDrivers)
 Loads all drivers for a device node (actual service and filters) and calls their AddDevice routine. More...
 
NTSTATUS NTAPI IopQueryDeviceCapabilities (PDEVICE_NODE DeviceNode, PDEVICE_CAPABILITIES DeviceCaps)
 
static NTSTATUS IopQueryHardwareIds (PDEVICE_NODE DeviceNode, HANDLE InstanceKey)
 
static NTSTATUS IopQueryCompatibleIds (PDEVICE_NODE DeviceNode, HANDLE InstanceKey)
 
VOID PiSetDevNodeText (_In_ PDEVICE_NODE DeviceNode, _In_ HANDLE InstanceKey)
 Sets the DeviceNode's DeviceDesc and LocationInformation registry values. More...
 
static NTSTATUS PiInitializeDevNode (_In_ PDEVICE_NODE DeviceNode)
 
static NTSTATUS PiStartDeviceFinal (_In_ PDEVICE_NODE DeviceNode)
 
static NTSTATUS PiIrpSendRemoveCheckVpb (_In_ PDEVICE_OBJECT DeviceObject, _In_ UCHAR MinorFunction)
 Sends one of the remove IRPs to the device stack. More...
 
static VOID NTAPI IopSendRemoveDevice (IN PDEVICE_OBJECT DeviceObject)
 
static VOID IopSendRemoveDeviceRelations (PDEVICE_RELATIONS DeviceRelations)
 
static VOID IopSendRemoveChildDevices (PDEVICE_NODE ParentDeviceNode)
 
static VOID NTAPI IopSendSurpriseRemoval (IN PDEVICE_OBJECT DeviceObject)
 
static VOID NTAPI IopCancelRemoveDevice (IN PDEVICE_OBJECT DeviceObject)
 
static VOID IopCancelRemoveChildDevices (PDEVICE_NODE ParentDeviceNode)
 
static VOID IopCancelRemoveDeviceRelations (PDEVICE_RELATIONS DeviceRelations)
 
static NTSTATUS NTAPI IopQueryRemoveDevice (IN PDEVICE_OBJECT DeviceObject)
 
static NTSTATUS IopQueryRemoveChildDevices (PDEVICE_NODE ParentDeviceNode, BOOLEAN Force)
 
static NTSTATUS IopQueryRemoveDeviceRelations (PDEVICE_RELATIONS DeviceRelations, BOOLEAN Force)
 
static NTSTATUS IopPrepareDeviceForRemoval (IN PDEVICE_OBJECT DeviceObject, BOOLEAN Force)
 
static NTSTATUS IopRemoveDevice (PDEVICE_NODE DeviceNode)
 
VOID NTAPI IoInvalidateDeviceState (IN PDEVICE_OBJECT PhysicalDeviceObject)
 
static NTSTATUS PiEnumerateDevice (_In_ PDEVICE_NODE DeviceNode)
 
static NTSTATUS NTAPI IopSendEject (IN PDEVICE_OBJECT DeviceObject)
 
VOID NTAPI IoRequestDeviceEject (IN PDEVICE_OBJECT PhysicalDeviceObject)
 
static VOID PiDevNodeStateMachine (_In_ PDEVICE_NODE RootNode)
 
static VOID NTAPI PipDeviceActionWorker (_In_opt_ PVOID Context)
 
VOID PiQueueDeviceAction (_In_ PDEVICE_OBJECT DeviceObject, _In_ DEVICE_ACTION Action, _In_opt_ PKEVENT CompletionEvent, _Out_opt_ NTSTATUS *CompletionStatus)
 Queue a device operation to a worker thread. More...
 
NTSTATUS PiPerformSyncDeviceAction (_In_ PDEVICE_OBJECT DeviceObject, _In_ DEVICE_ACTION Action)
 Perfom a device operation synchronously via PiQueueDeviceAction. More...
 

Variables

ERESOURCE IopDriverLoadResource
 
BOOLEAN PnpSystemInit
 
PDEVICE_NODE IopRootDeviceNode
 
BOOLEAN PnPBootDriversLoaded
 
BOOLEAN PnPBootDriversInitialized
 
LIST_ENTRY IopDeviceActionRequestList
 
WORK_QUEUE_ITEM IopDeviceActionWorkItem
 
BOOLEAN IopDeviceActionInProgress
 
KSPIN_LOCK IopDeviceActionLock
 
KEVENT PiEnumerationFinished
 
static const WCHAR ServicesKeyName [] = L"\\Registry\\Machine\\System\\CurrentControlSet\\Services\\"
 

Macro Definition Documentation

◆ MAX_DEVICE_ID_LEN

#define MAX_DEVICE_ID_LEN   200

Definition at line 40 of file devaction.c.

◆ MAX_SEPARATORS_DEVICEID

#define MAX_SEPARATORS_DEVICEID   1

Definition at line 42 of file devaction.c.

◆ MAX_SEPARATORS_INSTANCEID

#define MAX_SEPARATORS_INSTANCEID   0

Definition at line 41 of file devaction.c.

◆ NDEBUG

#define NDEBUG

Definition at line 29 of file devaction.c.

◆ TAG_PNP_DEVACTION

#define TAG_PNP_DEVACTION   'aDpP'

Definition at line 53 of file devaction.c.

Typedef Documentation

◆ ADD_DEV_DRIVER_TYPE

◆ ADD_DEV_DRIVERS_LIST

◆ ATTACH_FILTER_DRIVERS_CONTEXT

◆ DEVICE_ACTION_REQUEST

◆ PADD_DEV_DRIVERS_LIST

◆ PATTACH_FILTER_DRIVERS_CONTEXT

◆ PDEVICE_ACTION_REQUEST

Enumeration Type Documentation

◆ _ADD_DEV_DRIVER_TYPE

Enumerator
LowerFilter 
LowerClassFilter 
DeviceDriver 
UpperFilter 
UpperClassFilter 

Definition at line 66 of file devaction.c.

Function Documentation

◆ IoInvalidateDeviceState()

VOID NTAPI IoInvalidateDeviceState ( IN PDEVICE_OBJECT  PhysicalDeviceObject)

Definition at line 2018 of file devaction.c.

2019 {
2021  PNP_DEVICE_STATE PnPFlags;
2022  NTSTATUS Status;
2023 
2025  if (!NT_SUCCESS(Status))
2026  {
2028  {
2029  DPRINT1("IRP_MN_QUERY_PNP_DEVICE_STATE failed with status 0x%lx\n", Status);
2030  }
2031  return;
2032  }
2033 
2034  if (PnPFlags & PNP_DEVICE_NOT_DISABLEABLE)
2035  DeviceNode->UserFlags |= DNUF_NOT_DISABLEABLE;
2036  else
2037  DeviceNode->UserFlags &= ~DNUF_NOT_DISABLEABLE;
2038 
2039  if (PnPFlags & PNP_DEVICE_DONT_DISPLAY_IN_UI)
2040  DeviceNode->UserFlags |= DNUF_DONT_SHOW_IN_UI;
2041  else
2042  DeviceNode->UserFlags &= ~DNUF_DONT_SHOW_IN_UI;
2043 
2044  if ((PnPFlags & PNP_DEVICE_REMOVED) ||
2045  ((PnPFlags & PNP_DEVICE_FAILED) && !(PnPFlags & PNP_DEVICE_RESOURCE_REQUIREMENTS_CHANGED)))
2046  {
2047  /* Flag it if it's failed */
2048  if (PnPFlags & PNP_DEVICE_FAILED)
2049  {
2051  }
2052 
2053  DeviceNode->Flags |= DNF_DEVICE_GONE;
2055  }
2056  // it doesn't work anyway. A real resource rebalancing should be implemented
2057 #if 0
2058  else if ((PnPFlags & PNP_DEVICE_FAILED) && (PnPFlags & PNP_DEVICE_RESOURCE_REQUIREMENTS_CHANGED))
2059  {
2060  /* Stop for resource rebalance */
2061  Status = IopStopDevice(DeviceNode);
2062  if (!NT_SUCCESS(Status))
2063  {
2064  DPRINT1("Failed to stop device for rebalancing\n");
2065 
2066  /* Stop failed so don't rebalance */
2068  }
2069  }
2070 
2071  /* Resource rebalance */
2073  {
2074  DPRINT("Sending IRP_MN_QUERY_RESOURCES to device stack\n");
2075 
2077  &IoStatusBlock,
2079  NULL);
2081  {
2082  DeviceNode->BootResources =
2085  }
2086  else
2087  {
2088  DPRINT("IopInitiatePnpIrp() failed (Status %x) or IoStatusBlock.Information=NULL\n", Status);
2089  DeviceNode->BootResources = NULL;
2090  }
2091 
2092  DPRINT("Sending IRP_MN_QUERY_RESOURCE_REQUIREMENTS to device stack\n");
2093 
2095  &IoStatusBlock,
2097  NULL);
2098  if (NT_SUCCESS(Status))
2099  {
2100  DeviceNode->ResourceRequirements =
2102  }
2103  else
2104  {
2105  DPRINT("IopInitiatePnpIrp() failed (Status %08lx)\n", Status);
2106  DeviceNode->ResourceRequirements = NULL;
2107  }
2108 
2109  /* IRP_MN_FILTER_RESOURCE_REQUIREMENTS is called indirectly by IopStartDevice */
2110  if (IopStartDevice(DeviceNode) != STATUS_SUCCESS)
2111  {
2112  DPRINT1("Restart after resource rebalance failed\n");
2113 
2114  DeviceNode->Flags &= ~(DNF_STARTED | DNF_START_REQUEST_PENDING);
2115  DeviceNode->Flags |= DNF_START_FAILED;
2116 
2118  }
2119  }
2120 #endif
2121 }
struct _CM_RESOURCE_LIST * PCM_RESOURCE_LIST
return STATUS_NOT_SUPPORTED
#define IRP_MN_QUERY_RESOURCES
#define PNP_DEVICE_REMOVED
Definition: iotypes.h:1004
PNP_DEVNODE_STATE PiSetDevNodeState(_In_ PDEVICE_NODE DeviceNode, _In_ PNP_DEVNODE_STATE NewState)
Definition: devnode.c:108
#define DNUF_NOT_DISABLEABLE
Definition: iotypes.h:211
#define IRP_MN_QUERY_RESOURCE_REQUIREMENTS
LONG NTSTATUS
Definition: precomp.h:26
ULONG PNP_DEVICE_STATE
Definition: iotypes.h:997
#define DNF_HAS_BOOT_CONFIG
Definition: iotypes.h:176
struct _IO_RESOURCE_REQUIREMENTS_LIST * PIO_RESOURCE_REQUIREMENTS_LIST
#define CM_PROB_FAILED_POST_START
Definition: cfg.h:73
PDEVICE_OBJECT PhysicalDeviceObject
Definition: btrfs_drv.h:1155
#define PNP_DEVICE_DONT_DISPLAY_IN_UI
Definition: iotypes.h:1002
static NTSTATUS IopRemoveDevice(PDEVICE_NODE DeviceNode)
Definition: devaction.c:1979
#define DNUF_DONT_SHOW_IN_UI
Definition: iotypes.h:209
#define IopDeviceNodeSetFlag(DeviceNode, Flag)
Definition: io.h:146
Status
Definition: gdiplustypes.h:24
VOID PiSetDevNodeProblem(_In_ PDEVICE_NODE DeviceNode, _In_ UINT32 Problem)
Definition: devnode.c:132
#define PNP_DEVICE_RESOURCE_REQUIREMENTS_CHANGED
Definition: iotypes.h:1005
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
#define PNP_DEVICE_NOT_DISABLEABLE
Definition: iotypes.h:1006
Definition: Node.h:9
#define DNF_DEVICE_GONE
Definition: iotypes.h:186
#define PNP_DEVICE_FAILED
Definition: iotypes.h:1003
NTSTATUS PiIrpQueryPnPDeviceState(_In_ PDEVICE_NODE DeviceNode, _Out_ PPNP_DEVICE_STATE DeviceState)
Definition: pnpirp.c:232
static OUT PIO_STATUS_BLOCK IoStatusBlock
Definition: pipe.c:75
#define NULL
Definition: types.h:112
#define DPRINT1
Definition: precomp.h:8
#define STATUS_SUCCESS
Definition: shellext.h:65
#define DPRINT
Definition: sndvol32.h:71
NTSTATUS NTAPI IopInitiatePnpIrp(IN PDEVICE_OBJECT DeviceObject, IN PIO_STATUS_BLOCK IoStatusBlock, IN UCHAR MinorFunction, IN PIO_STACK_LOCATION Stack)
PDEVICE_NODE FASTCALL IopGetDeviceNode(IN PDEVICE_OBJECT DeviceObject)

Referenced by HidUsb_ResetWorkerRoutine(), MxDeviceObject::InvalidateDeviceState(), IsaPdoQueryDeviceUsageNotification(), IsaPdoStartReadPort(), and PiStartDeviceFinal().

◆ IopCancelPrepareDeviceForRemoval()

static VOID IopCancelPrepareDeviceForRemoval ( PDEVICE_OBJECT  DeviceObject)
static

Definition at line 1763 of file devaction.c.

1764 {
1767  PDEVICE_RELATIONS DeviceRelations;
1768  NTSTATUS Status;
1769 
1771 
1772  Stack.Parameters.QueryDeviceRelations.Type = RemovalRelations;
1773 
1775  &IoStatusBlock,
1777  &Stack);
1778  if (!NT_SUCCESS(Status))
1779  {
1780  DPRINT("IopInitiatePnpIrp() failed with status 0x%08lx\n", Status);
1781  DeviceRelations = NULL;
1782  }
1783  else
1784  {
1785  DeviceRelations = (PDEVICE_RELATIONS)IoStatusBlock.Information;
1786  }
1787 
1788  if (DeviceRelations)
1789  IopCancelRemoveDeviceRelations(DeviceRelations);
1790 }
LONG NTSTATUS
Definition: precomp.h:26
static VOID NTAPI IopCancelRemoveDevice(IN PDEVICE_OBJECT DeviceObject)
Definition: devaction.c:1712
_In_ WDFREQUEST _In_ PIO_STACK_LOCATION Stack
Definition: wdfrequest.h:636
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
struct _DEVICE_RELATIONS * PDEVICE_RELATIONS
Status
Definition: gdiplustypes.h:24
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
static OUT PIO_STATUS_BLOCK IoStatusBlock
Definition: pipe.c:75
#define NULL
Definition: types.h:112
#define IRP_MN_QUERY_DEVICE_RELATIONS
static VOID IopCancelRemoveDeviceRelations(PDEVICE_RELATIONS DeviceRelations)
Definition: devaction.c:1745
#define DPRINT
Definition: sndvol32.h:71
NTSTATUS NTAPI IopInitiatePnpIrp(IN PDEVICE_OBJECT DeviceObject, IN PIO_STATUS_BLOCK IoStatusBlock, IN UCHAR MinorFunction, IN PIO_STACK_LOCATION Stack)

Referenced by IopCancelRemoveChildDevices(), IopCancelRemoveDeviceRelations(), IopQueryRemoveChildDevices(), and IopQueryRemoveDeviceRelations().

◆ IopCancelRemoveChildDevices()

static VOID IopCancelRemoveChildDevices ( PDEVICE_NODE  ParentDeviceNode)
static

Definition at line 1722 of file devaction.c.

1723 {
1724  PDEVICE_NODE ChildDeviceNode, NextDeviceNode;
1725  KIRQL OldIrql;
1726 
1728  ChildDeviceNode = ParentDeviceNode->Child;
1729  while (ChildDeviceNode != NULL)
1730  {
1731  NextDeviceNode = ChildDeviceNode->Sibling;
1733 
1735 
1736  ChildDeviceNode = NextDeviceNode;
1737 
1739  }
1741 }
PDEVICE_OBJECT PhysicalDeviceObject
Definition: iotypes.h:850
VOID NTAPI KeAcquireSpinLock(PKSPIN_LOCK SpinLock, PKIRQL OldIrql)
Definition: spinlock.c:50
UCHAR KIRQL
Definition: env_spec_w32.h:591
struct _DEVICE_NODE * Child
Definition: iotypes.h:835
KIRQL OldIrql
Definition: mm.h:1502
KSPIN_LOCK IopDeviceTreeLock
Definition: devnode.c:19
static VOID IopCancelPrepareDeviceForRemoval(PDEVICE_OBJECT DeviceObject)
Definition: devaction.c:1763
#define NULL
Definition: types.h:112
#define KeReleaseSpinLock(sl, irql)
Definition: env_spec_w32.h:627
struct _DEVICE_NODE * Sibling
Definition: iotypes.h:834

Referenced by IoRequestDeviceEject().

◆ IopCancelRemoveDevice()

static VOID NTAPI IopCancelRemoveDevice ( IN PDEVICE_OBJECT  DeviceObject)
static

Definition at line 1712 of file devaction.c.

1713 {
1714  /* Drivers should never fail a IRP_MN_CANCEL_REMOVE_DEVICE request */
1716 
1717  PiNotifyTargetDeviceChange(&GUID_TARGET_DEVICE_REMOVE_CANCELLED, DeviceObject, NULL);
1718 }
#define IRP_MN_CANCEL_REMOVE_DEVICE
static NTSTATUS PiIrpSendRemoveCheckVpb(_In_ PDEVICE_OBJECT DeviceObject, _In_ UCHAR MinorFunction)
Sends one of the remove IRPs to the device stack.
Definition: devaction.c:1578
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
#define NULL
Definition: types.h:112
VOID PiNotifyTargetDeviceChange(_In_ LPCGUID Event, _In_ PDEVICE_OBJECT DeviceObject, _In_opt_ PTARGET_DEVICE_CUSTOM_NOTIFICATION CustomNotification)
Delivers the event to all drivers subscribed to EventCategoryTargetDeviceChange PnP event.
Definition: pnpnotify.c:258

Referenced by IopCancelPrepareDeviceForRemoval(), and IopPrepareDeviceForRemoval().

◆ IopCancelRemoveDeviceRelations()

static VOID IopCancelRemoveDeviceRelations ( PDEVICE_RELATIONS  DeviceRelations)
static

Definition at line 1745 of file devaction.c.

1746 {
1747  /* This function DOES dereference the device objects in all cases */
1748 
1749  ULONG i;
1750 
1751  for (i = 0; i < DeviceRelations->Count; i++)
1752  {
1753  IopCancelPrepareDeviceForRemoval(DeviceRelations->Objects[i]);
1754  ObDereferenceObject(DeviceRelations->Objects[i]);
1755  DeviceRelations->Objects[i] = NULL;
1756  }
1757 
1758  ExFreePool(DeviceRelations);
1759 }
PDEVICE_OBJECT Objects[1]
Definition: iotypes.h:2163
#define ObDereferenceObject
Definition: obfuncs.h:203
static VOID IopCancelPrepareDeviceForRemoval(PDEVICE_OBJECT DeviceObject)
Definition: devaction.c:1763
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
#define NULL
Definition: types.h:112
unsigned int ULONG
Definition: retypes.h:1
#define ExFreePool(addr)
Definition: env_spec_w32.h:352

Referenced by IopCancelPrepareDeviceForRemoval(), IopPrepareDeviceForRemoval(), and IoRequestDeviceEject().

◆ IopCreateDeviceInstancePath()

static NTSTATUS IopCreateDeviceInstancePath ( _In_ PDEVICE_NODE  DeviceNode,
_Out_ PUNICODE_STRING  InstancePath 
)
static

Definition at line 215 of file devaction.c.

218 {
220  UNICODE_STRING DeviceId;
224  UNICODE_STRING ParentIdPrefix = { 0, 0, NULL };
226  BOOLEAN IsValidID;
227 
228  DPRINT("Sending IRP_MN_QUERY_ID.BusQueryDeviceID to device stack\n");
229 
230  Stack.Parameters.QueryId.IdType = BusQueryDeviceID;
231  Status = IopInitiatePnpIrp(DeviceNode->PhysicalDeviceObject,
232  &IoStatusBlock,
234  &Stack);
235  if (!NT_SUCCESS(Status))
236  {
237  DPRINT1("IopInitiatePnpIrp(BusQueryDeviceID) failed (Status %x)\n", Status);
238  return Status;
239  }
240 
242 
243  if (!IsValidID)
244  {
245  DPRINT1("Invalid DeviceID. DeviceNode - %p\n", DeviceNode);
246  }
247 
248  /* Save the device id string */
250 
251  DPRINT("Sending IRP_MN_QUERY_CAPABILITIES to device stack (after enumeration)\n");
252 
254  if (!NT_SUCCESS(Status))
255  {
256  DPRINT1("IopQueryDeviceCapabilities() failed (Status 0x%08lx)\n", Status);
257  RtlFreeUnicodeString(&DeviceId);
258  return Status;
259  }
260 
261  /* This bit is only check after enumeration */
262  if (DeviceCapabilities.HardwareDisabled)
263  {
264  /* FIXME: Cleanup device */
265  RtlFreeUnicodeString(&DeviceId);
267  }
268 
269  if (!DeviceCapabilities.UniqueID)
270  {
271  /* Device has not a unique ID. We need to prepend parent bus unique identifier */
272  DPRINT("Instance ID is not unique\n");
273  Status = IopGetParentIdPrefix(DeviceNode, &ParentIdPrefix);
274  if (!NT_SUCCESS(Status))
275  {
276  DPRINT1("IopGetParentIdPrefix() failed (Status 0x%08lx)\n", Status);
277  RtlFreeUnicodeString(&DeviceId);
278  return Status;
279  }
280  }
281 
282  DPRINT("Sending IRP_MN_QUERY_ID.BusQueryInstanceID to device stack\n");
283 
284  Stack.Parameters.QueryId.IdType = BusQueryInstanceID;
285  Status = IopInitiatePnpIrp(DeviceNode->PhysicalDeviceObject,
286  &IoStatusBlock,
288  &Stack);
289  if (!NT_SUCCESS(Status))
290  {
291  DPRINT("IopInitiatePnpIrp(BusQueryInstanceID) failed (Status %lx)\n", Status);
293  }
294 
296  {
298 
299  if (!IsValidID)
300  {
301  DPRINT1("Invalid InstanceID. DeviceNode - %p\n", DeviceNode);
302  }
303  }
304 
307 
308  InstancePath->Length = 0;
309  InstancePath->MaximumLength = DeviceId.Length + sizeof(WCHAR) +
310  ParentIdPrefix.Length +
311  InstanceId.Length +
312  sizeof(UNICODE_NULL);
313  if (ParentIdPrefix.Length && InstanceId.Length)
314  {
315  InstancePath->MaximumLength += sizeof(WCHAR);
316  }
317 
318  InstancePath->Buffer = ExAllocatePoolWithTag(PagedPool,
319  InstancePath->MaximumLength,
320  TAG_IO);
321  if (!InstancePath->Buffer)
322  {
324  RtlFreeUnicodeString(&ParentIdPrefix);
325  RtlFreeUnicodeString(&DeviceId);
327  }
328 
329  /* Start with the device id */
330  RtlCopyUnicodeString(InstancePath, &DeviceId);
331  RtlAppendUnicodeToString(InstancePath, L"\\");
332 
333  /* Add information from parent bus device to InstancePath */
334  RtlAppendUnicodeStringToString(InstancePath, &ParentIdPrefix);
335  if (ParentIdPrefix.Length && InstanceId.Length)
336  {
337  RtlAppendUnicodeToString(InstancePath, L"&");
338  }
339 
340  /* Finally, add the id returned by the driver stack */
342 
343  /*
344  * FIXME: Check for valid characters, if there is invalid characters
345  * then bugcheck
346  */
347 
349  RtlFreeUnicodeString(&DeviceId);
350  RtlFreeUnicodeString(&ParentIdPrefix);
351 
352  return STATUS_SUCCESS;
353 }
#define STATUS_PLUGPLAY_NO_DEVICE
Definition: ntstatus.h:731
#define STATUS_INSUFFICIENT_RESOURCES
Definition: udferr_usr.h:158
#define IRP_MN_QUERY_ID
#define TAG_IO
Definition: tag.h:69
uint16_t * PWSTR
Definition: typedefs.h:56
LONG NTSTATUS
Definition: precomp.h:26
DEVICE_CAPABILITIES
Definition: iotypes.h:965
uint16_t * PWCHAR
Definition: typedefs.h:56
NTSYSAPI VOID NTAPI RtlCopyUnicodeString(PUNICODE_STRING DestinationString, PUNICODE_STRING SourceString)
_In_ WDFREQUEST _In_ PIO_STACK_LOCATION Stack
Definition: wdfrequest.h:636
#define UNICODE_NULL
NTSTATUS NTAPI IopQueryDeviceCapabilities(PDEVICE_NODE DeviceNode, PDEVICE_CAPABILITIES DeviceCaps)
Definition: devaction.c:853
_Must_inspect_result_ _In_opt_ PVOID _In_opt_ PVOID InstanceId
Definition: fsrtlfuncs.h:907
unsigned char BOOLEAN
#define DeviceCapabilities
Definition: wingdi.h:4448
Status
Definition: gdiplustypes.h:24
NTSTATUS RtlAppendUnicodeToString(IN PUNICODE_STRING Str1, IN PWSTR Str2)
Definition: string_lib.cpp:62
static BOOLEAN IopValidateID(_In_ PWCHAR Id, _In_ BUS_QUERY_ID_TYPE QueryType)
Definition: devaction.c:124
#define ASSERT(a)
Definition: mode.c:44
NTSTATUS IopGetParentIdPrefix(PDEVICE_NODE DeviceNode, PUNICODE_STRING ParentIdPrefix)
Definition: pnpmgr.c:760
__wchar_t WCHAR
Definition: xmlstorage.h:180
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
NTSYSAPI VOID NTAPI RtlFreeUnicodeString(PUNICODE_STRING UnicodeString)
Definition: Node.h:9
#define ExAllocatePoolWithTag(hernya, size, tag)
Definition: env_spec_w32.h:350
static const WCHAR L[]
Definition: oid.c:1250
NTSYSAPI NTSTATUS NTAPI RtlAppendUnicodeStringToString(PUNICODE_STRING Destination, PUNICODE_STRING Source)
static OUT PIO_STATUS_BLOCK IoStatusBlock
Definition: pipe.c:75
#define NULL
Definition: types.h:112
#define DPRINT1
Definition: precomp.h:8
NTSYSAPI VOID NTAPI RtlInitUnicodeString(PUNICODE_STRING DestinationString, PCWSTR SourceString)
#define STATUS_SUCCESS
Definition: shellext.h:65
#define DPRINT
Definition: sndvol32.h:71
NTSTATUS NTAPI IopInitiatePnpIrp(IN PDEVICE_OBJECT DeviceObject, IN PIO_STATUS_BLOCK IoStatusBlock, IN UCHAR MinorFunction, IN PIO_STACK_LOCATION Stack)

Referenced by PiInitializeDevNode().

◆ IopGetBusTypeGuidIndex()

USHORT NTAPI IopGetBusTypeGuidIndex ( LPGUID  BusTypeGuid)

Definition at line 411 of file pnpmgr.c.

412 {
413  USHORT i = 0, FoundIndex = 0xFFFF;
414  ULONG NewSize;
415  PVOID NewList;
416 
417  /* Acquire the lock */
419 
420  /* Loop all entries */
421  while (i < PnpBusTypeGuidList->GuidCount)
422  {
423  /* Try to find a match */
424  if (RtlCompareMemory(BusTypeGuid,
426  sizeof(GUID)) == sizeof(GUID))
427  {
428  /* Found it */
429  FoundIndex = i;
430  goto Quickie;
431  }
432  i++;
433  }
434 
435  /* Check if we have to grow the list */
437  {
438  /* Calculate the new size */
439  NewSize = sizeof(IO_BUS_TYPE_GUID_LIST) +
440  (sizeof(GUID) * PnpBusTypeGuidList->GuidCount);
441 
442  /* Allocate the new copy */
443  NewList = ExAllocatePool(PagedPool, NewSize);
444 
445  if (!NewList)
446  {
447  /* Fail */
449  goto Quickie;
450  }
451 
452  /* Now copy them, decrease the size too */
453  NewSize -= sizeof(GUID);
455 
456  /* Free the old list */
458 
459  /* Use the new buffer */
460  PnpBusTypeGuidList = NewList;
461  }
462 
463  /* Copy the new GUID */
465  BusTypeGuid,
466  sizeof(GUID));
467 
468  /* The new entry is the index */
469  FoundIndex = (USHORT)PnpBusTypeGuidList->GuidCount;
471 
472 Quickie:
474  return FoundIndex;
475 }
GUID Guids[1]
Definition: io.h:432
PIO_BUS_TYPE_GUID_LIST PnpBusTypeGuidList
Definition: pnpmgr.c:27
FAST_MUTEX Lock
Definition: io.h:431
VOID FASTCALL ExReleaseFastMutex(IN PFAST_MUTEX FastMutex)
Definition: fmutex.c:31
struct _IO_BUS_TYPE_GUID_LIST IO_BUS_TYPE_GUID_LIST
#define ExAllocatePool(type, size)
Definition: fbtusb.h:44
_Must_inspect_result_ _In_ USHORT NewSize
Definition: fltkernel.h:975
struct _GUID GUID
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
VOID FASTCALL ExAcquireFastMutex(IN PFAST_MUTEX FastMutex)
Definition: fmutex.c:23
unsigned short USHORT
Definition: pedump.c:61
unsigned int ULONG
Definition: retypes.h:1
#define RtlCopyMemory(Destination, Source, Length)
Definition: typedefs.h:263
#define ExFreePool(addr)
Definition: env_spec_w32.h:352
#define RtlCompareMemory(s1, s2, l)
Definition: env_spec_w32.h:465

Referenced by PiInitializeDevNode().

◆ IopGetDeviceObjectFromDeviceInstance()

PDEVICE_OBJECT IopGetDeviceObjectFromDeviceInstance ( PUNICODE_STRING  DeviceInstance)

Definition at line 122 of file plugplay.c.

123 {
124  if (IopRootDeviceNode == NULL)
125  return NULL;
126 
127  if (DeviceInstance == NULL ||
128  DeviceInstance->Length == 0)
129  {
131  {
134  }
135  else
136  return NULL;
137  }
138 
140 }
PDEVICE_OBJECT PhysicalDeviceObject
Definition: iotypes.h:850
PDEVICE_NODE IopRootDeviceNode
Definition: devnode.c:18
static PDEVICE_OBJECT IopTraverseDeviceNode(PDEVICE_NODE Node, PUNICODE_STRING DeviceInstance)
Definition: plugplay.c:93
_In_ PNDIS_STRING DeviceInstance
Definition: ndis.h:5202
#define NULL
Definition: types.h:112
#define ObReferenceObject
Definition: obfuncs.h:204

Referenced by IopDeviceStatus(), IopGetDeviceDepth(), IopGetDeviceProperty(), IopGetDeviceRelations(), IopGetInterfaceDeviceList(), IopGetRelatedDevice(), PiControlSyncDeviceAction(), and PiInitializeDevNode().

◆ IopGetParentIdPrefix()

NTSTATUS IopGetParentIdPrefix ( PDEVICE_NODE  DeviceNode,
PUNICODE_STRING  ParentIdPrefix 
)

Definition at line 760 of file pnpmgr.c.

762 {
763  const UNICODE_STRING EnumKeyPath = RTL_CONSTANT_STRING(L"\\Registry\\Machine\\System\\CurrentControlSet\\Enum\\");
764  ULONG KeyNameBufferLength;
765  PKEY_VALUE_PARTIAL_INFORMATION ParentIdPrefixInformation = NULL;
766  UNICODE_STRING KeyName = {0, 0, NULL};
767  UNICODE_STRING KeyValue;
769  HANDLE hKey = NULL;
770  ULONG crc32;
772 
773  /* HACK: As long as some devices have a NULL device
774  * instance path, the following test is required :(
775  */
776  if (DeviceNode->Parent->InstancePath.Length == 0)
777  {
778  DPRINT1("Parent of %wZ has NULL Instance path, please report!\n",
779  &DeviceNode->InstancePath);
780  return STATUS_UNSUCCESSFUL;
781  }
782 
783  /* 1. Try to retrieve ParentIdPrefix from registry */
784  KeyNameBufferLength = FIELD_OFFSET(KEY_VALUE_PARTIAL_INFORMATION, Data) + sizeof(L"12345678&12345678");
785  ParentIdPrefixInformation = ExAllocatePoolWithTag(PagedPool,
786  KeyNameBufferLength + sizeof(UNICODE_NULL),
787  TAG_IO);
788  if (!ParentIdPrefixInformation)
789  {
791  }
792 
793  KeyName.Length = 0;
794  KeyName.MaximumLength = EnumKeyPath.Length +
795  DeviceNode->Parent->InstancePath.Length +
796  sizeof(UNICODE_NULL);
798  KeyName.MaximumLength,
799  TAG_IO);
800  if (!KeyName.Buffer)
801  {
803  goto cleanup;
804  }
805 
806  RtlCopyUnicodeString(&KeyName, &EnumKeyPath);
807  RtlAppendUnicodeStringToString(&KeyName, &DeviceNode->Parent->InstancePath);
808 
810  if (!NT_SUCCESS(Status))
811  {
812  goto cleanup;
813  }
814  RtlInitUnicodeString(&ValueName, L"ParentIdPrefix");
815  Status = ZwQueryValueKey(hKey,
816  &ValueName,
818  ParentIdPrefixInformation,
819  KeyNameBufferLength,
820  &KeyNameBufferLength);
821  if (NT_SUCCESS(Status))
822  {
823  if (ParentIdPrefixInformation->Type != REG_SZ)
824  {
826  }
827  else
828  {
829  KeyValue.MaximumLength = (USHORT)ParentIdPrefixInformation->DataLength;
830  KeyValue.Length = KeyValue.MaximumLength - sizeof(UNICODE_NULL);
831  KeyValue.Buffer = (PWSTR)ParentIdPrefixInformation->Data;
832  ASSERT(KeyValue.Buffer[KeyValue.Length / sizeof(WCHAR)] == UNICODE_NULL);
833  }
834  goto cleanup;
835  }
837  {
838  /* FIXME how do we get here and why is ParentIdPrefixInformation valid? */
839  KeyValue.MaximumLength = (USHORT)ParentIdPrefixInformation->DataLength;
840  KeyValue.Length = KeyValue.MaximumLength - sizeof(UNICODE_NULL);
841  KeyValue.Buffer = (PWSTR)ParentIdPrefixInformation->Data;
842  ASSERT(KeyValue.Buffer[KeyValue.Length / sizeof(WCHAR)] == UNICODE_NULL);
843  goto cleanup;
844  }
845 
846  /* 2. Create the ParentIdPrefix value */
848  (PUCHAR)DeviceNode->Parent->InstancePath.Buffer,
849  DeviceNode->Parent->InstancePath.Length);
850 
851  RtlStringCbPrintfW((PWSTR)ParentIdPrefixInformation,
852  KeyNameBufferLength,
853  L"%lx&%lx",
854  DeviceNode->Parent->Level,
855  crc32);
856  RtlInitUnicodeString(&KeyValue, (PWSTR)ParentIdPrefixInformation);
857 
858  /* 3. Try to write the ParentIdPrefix to registry */
859  Status = ZwSetValueKey(hKey,
860  &ValueName,
861  0,
862  REG_SZ,
863  KeyValue.Buffer,
864  ((ULONG)wcslen(KeyValue.Buffer) + 1) * sizeof(WCHAR));
865 
866 cleanup:
867  if (NT_SUCCESS(Status))
868  {
869  /* Duplicate the string to return it */
871  &KeyValue,
872  ParentIdPrefix);
873  }
874  ExFreePoolWithTag(ParentIdPrefixInformation, TAG_IO);
876  if (hKey != NULL)
877  {
878  ZwClose(hKey);
879  }
880  return Status;
881 }
#define STATUS_INSUFFICIENT_RESOURCES
Definition: udferr_usr.h:158
#define TAG_IO
Definition: tag.h:69
#define KEY_SET_VALUE
Definition: nt_native.h:1017
USHORT MaximumLength
Definition: env_spec_w32.h:370
NTSYSAPI NTSTATUS NTAPI ZwClose(_In_ HANDLE Handle)
NTSTATUS NTAPI IopOpenRegistryKeyEx(PHANDLE KeyHandle, HANDLE ParentKey, PUNICODE_STRING Name, ACCESS_MASK DesiredAccess)
Definition: pnpmgr.c:1455
uint16_t * PWSTR
Definition: typedefs.h:56
unsigned char * PUCHAR
Definition: retypes.h:3
LONG NTSTATUS
Definition: precomp.h:26
NTSYSAPI VOID NTAPI RtlCopyUnicodeString(PUNICODE_STRING DestinationString, PUNICODE_STRING SourceString)
#define UNICODE_NULL
_Must_inspect_result_ _In_ WDFDEVICE _In_ PCUNICODE_STRING KeyName
Definition: wdfdevice.h:2697
Status
Definition: gdiplustypes.h:24
#define ASSERT(a)
Definition: mode.c:44
__wchar_t WCHAR
Definition: xmlstorage.h:180
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
NTSYSAPI NTSTATUS WINAPI RtlDuplicateUnicodeString(int, const UNICODE_STRING *, UNICODE_STRING *)
NTSTRSAFEVAPI RtlStringCbPrintfW(_Out_writes_bytes_(cbDest) _Always_(_Post_z_) NTSTRSAFE_PWSTR pszDest, _In_ size_t cbDest, _In_ _Printf_format_string_ NTSTRSAFE_PCWSTR pszFormat,...)
Definition: ntstrsafe.h:1173
NTSYSAPI VOID NTAPI RtlFreeUnicodeString(PUNICODE_STRING UnicodeString)
#define RTL_DUPLICATE_UNICODE_STRING_NULL_TERMINATE
Definition: green.h:15
Definition: Node.h:9
#define STATUS_UNSUCCESSFUL
Definition: udferr_usr.h:132
#define ExAllocatePoolWithTag(hernya, size, tag)
Definition: env_spec_w32.h:350
_Must_inspect_result_ _In_ WDFKEY _In_ PCUNICODE_STRING ValueName
Definition: wdfregistry.h:240
static const WCHAR L[]
Definition: oid.c:1250
#define RtlComputeCrc32
Definition: compat.h:669
#define STATUS_OBJECT_NAME_NOT_FOUND
Definition: udferr_usr.h:149
unsigned short USHORT
Definition: pedump.c:61
FxAutoRegKey hKey
#define KEY_QUERY_VALUE
Definition: nt_native.h:1016
NTSYSAPI NTSTATUS NTAPI RtlAppendUnicodeStringToString(PUNICODE_STRING Destination, PUNICODE_STRING Source)
#define FIELD_OFFSET(t, f)
Definition: typedefs.h:255
#define NULL
Definition: types.h:112
_CRTIMP size_t __cdecl wcslen(_In_z_ const wchar_t *_Str)
#define DPRINT1
Definition: precomp.h:8
#define crc32(crc, buf, len)
Definition: inflate.c:1081
unsigned int ULONG
Definition: retypes.h:1
NTSYSAPI VOID NTAPI RtlInitUnicodeString(PUNICODE_STRING DestinationString, PCWSTR SourceString)
char * cleanup(char *str)
Definition: wpickclick.c:99
#define ExFreePoolWithTag(_P, _T)
Definition: module.h:1099
#define RTL_CONSTANT_STRING(s)
Definition: tunneltest.c:14
#define REG_SZ
Definition: layer.c:22

Referenced by IopCreateDeviceInstancePath().

◆ IopInstallCriticalDevice()

VOID NTAPI IopInstallCriticalDevice ( PDEVICE_NODE  DeviceNode)

Definition at line 45 of file pnpmgr.c.

46 {
48  HANDLE CriticalDeviceKey, InstanceKey;
50  UNICODE_STRING CriticalDeviceKeyU = RTL_CONSTANT_STRING(L"\\Registry\\Machine\\System\\CurrentControlSet\\Control\\CriticalDeviceDatabase");
51  UNICODE_STRING CompatibleIdU = RTL_CONSTANT_STRING(L"CompatibleIDs");
52  UNICODE_STRING HardwareIdU = RTL_CONSTANT_STRING(L"HardwareID");
53  UNICODE_STRING ServiceU = RTL_CONSTANT_STRING(L"Service");
54  UNICODE_STRING ClassGuidU = RTL_CONSTANT_STRING(L"ClassGUID");
56  ULONG HidLength = 0, CidLength = 0, BufferLength;
57  PWCHAR IdBuffer, OriginalIdBuffer;
58 
59  /* Open the device instance key */
60  Status = IopCreateDeviceKeyPath(&DeviceNode->InstancePath, REG_OPTION_NON_VOLATILE, &InstanceKey);
61  if (Status != STATUS_SUCCESS)
62  return;
63 
64  Status = ZwQueryValueKey(InstanceKey,
65  &HardwareIdU,
67  NULL,
68  0,
69  &HidLength);
71  {
72  ZwClose(InstanceKey);
73  return;
74  }
75 
76  Status = ZwQueryValueKey(InstanceKey,
77  &CompatibleIdU,
79  NULL,
80  0,
81  &CidLength);
83  {
84  CidLength = 0;
85  }
86 
87  BufferLength = HidLength + CidLength;
88  BufferLength -= (((CidLength != 0) ? 2 : 1) * FIELD_OFFSET(KEY_VALUE_PARTIAL_INFORMATION, Data));
89 
90  /* Allocate a buffer to hold data from both */
91  OriginalIdBuffer = IdBuffer = ExAllocatePool(PagedPool, BufferLength);
92  if (!IdBuffer)
93  {
94  ZwClose(InstanceKey);
95  return;
96  }
97 
98  /* Compute the buffer size */
99  if (HidLength > CidLength)
100  BufferLength = HidLength;
101  else
102  BufferLength = CidLength;
103 
104  PartialInfo = ExAllocatePool(PagedPool, BufferLength);
105  if (!PartialInfo)
106  {
107  ZwClose(InstanceKey);
108  ExFreePool(OriginalIdBuffer);
109  return;
110  }
111 
112  Status = ZwQueryValueKey(InstanceKey,
113  &HardwareIdU,
115  PartialInfo,
116  HidLength,
117  &HidLength);
118  if (Status != STATUS_SUCCESS)
119  {
120  ExFreePool(PartialInfo);
121  ExFreePool(OriginalIdBuffer);
122  ZwClose(InstanceKey);
123  return;
124  }
125 
126  /* Copy in HID info first (without 2nd terminating NULL if CID is present) */
127  HidLength = PartialInfo->DataLength - ((CidLength != 0) ? sizeof(WCHAR) : 0);
128  RtlCopyMemory(IdBuffer, PartialInfo->Data, HidLength);
129 
130  if (CidLength != 0)
131  {
132  Status = ZwQueryValueKey(InstanceKey,
133  &CompatibleIdU,
135  PartialInfo,
136  CidLength,
137  &CidLength);
138  if (Status != STATUS_SUCCESS)
139  {
140  ExFreePool(PartialInfo);
141  ExFreePool(OriginalIdBuffer);
142  ZwClose(InstanceKey);
143  return;
144  }
145 
146  /* Copy CID next */
147  CidLength = PartialInfo->DataLength;
148  RtlCopyMemory(((PUCHAR)IdBuffer) + HidLength, PartialInfo->Data, CidLength);
149  }
150 
151  /* Free our temp buffer */
152  ExFreePool(PartialInfo);
153 
155  &CriticalDeviceKeyU,
157  NULL,
158  NULL);
159  Status = ZwOpenKey(&CriticalDeviceKey,
162  if (!NT_SUCCESS(Status))
163  {
164  /* The critical device database doesn't exist because
165  * we're probably in 1st stage setup, but it's ok */
166  ExFreePool(OriginalIdBuffer);
167  ZwClose(InstanceKey);
168  return;
169  }
170 
171  while (*IdBuffer)
172  {
173  USHORT StringLength = (USHORT)wcslen(IdBuffer) + 1, Index;
174 
175  IopFixupDeviceId(IdBuffer);
176 
177  /* Look through all subkeys for a match */
178  for (Index = 0; TRUE; Index++)
179  {
180  ULONG NeededLength;
181  PKEY_BASIC_INFORMATION BasicInfo;
182 
183  Status = ZwEnumerateKey(CriticalDeviceKey,
184  Index,
186  NULL,
187  0,
188  &NeededLength);
190  break;
192  {
193  UNICODE_STRING ChildIdNameU, RegKeyNameU;
194 
195  BasicInfo = ExAllocatePool(PagedPool, NeededLength);
196  if (!BasicInfo)
197  {
198  /* No memory */
199  ExFreePool(OriginalIdBuffer);
200  ZwClose(CriticalDeviceKey);
201  ZwClose(InstanceKey);
202  return;
203  }
204 
205  Status = ZwEnumerateKey(CriticalDeviceKey,
206  Index,
208  BasicInfo,
209  NeededLength,
210  &NeededLength);
211  if (Status != STATUS_SUCCESS)
212  {
213  /* This shouldn't happen */
214  ExFreePool(BasicInfo);
215  continue;
216  }
217 
218  ChildIdNameU.Buffer = IdBuffer;
219  ChildIdNameU.MaximumLength = ChildIdNameU.Length = (StringLength - 1) * sizeof(WCHAR);
220  RegKeyNameU.Buffer = BasicInfo->Name;
221  RegKeyNameU.MaximumLength = RegKeyNameU.Length = (USHORT)BasicInfo->NameLength;
222 
223  if (RtlEqualUnicodeString(&ChildIdNameU, &RegKeyNameU, TRUE))
224  {
225  HANDLE ChildKeyHandle;
226 
228  &ChildIdNameU,
230  CriticalDeviceKey,
231  NULL);
232 
233  Status = ZwOpenKey(&ChildKeyHandle,
236  if (Status != STATUS_SUCCESS)
237  {
238  ExFreePool(BasicInfo);
239  continue;
240  }
241 
242  /* Check if there's already a driver installed */
243  Status = ZwQueryValueKey(InstanceKey,
244  &ClassGuidU,
246  NULL,
247  0,
248  &NeededLength);
250  {
251  ExFreePool(BasicInfo);
252  continue;
253  }
254 
255  Status = ZwQueryValueKey(ChildKeyHandle,
256  &ClassGuidU,
258  NULL,
259  0,
260  &NeededLength);
262  {
263  ExFreePool(BasicInfo);
264  continue;
265  }
266 
267  PartialInfo = ExAllocatePool(PagedPool, NeededLength);
268  if (!PartialInfo)
269  {
270  ExFreePool(OriginalIdBuffer);
271  ExFreePool(BasicInfo);
272  ZwClose(InstanceKey);
273  ZwClose(ChildKeyHandle);
274  ZwClose(CriticalDeviceKey);
275  return;
276  }
277 
278  /* Read ClassGUID entry in the CDDB */
279  Status = ZwQueryValueKey(ChildKeyHandle,
280  &ClassGuidU,
282  PartialInfo,
283  NeededLength,
284  &NeededLength);
285  if (Status != STATUS_SUCCESS)
286  {
287  ExFreePool(BasicInfo);
288  continue;
289  }
290 
291  /* Write it to the ENUM key */
292  Status = ZwSetValueKey(InstanceKey,
293  &ClassGuidU,
294  0,
295  REG_SZ,
296  PartialInfo->Data,
297  PartialInfo->DataLength);
298  if (Status != STATUS_SUCCESS)
299  {
300  ExFreePool(BasicInfo);
301  ExFreePool(PartialInfo);
302  ZwClose(ChildKeyHandle);
303  continue;
304  }
305 
306  Status = ZwQueryValueKey(ChildKeyHandle,
307  &ServiceU,
309  NULL,
310  0,
311  &NeededLength);
313  {
314  ExFreePool(PartialInfo);
315  PartialInfo = ExAllocatePool(PagedPool, NeededLength);
316  if (!PartialInfo)
317  {
318  ExFreePool(OriginalIdBuffer);
319  ExFreePool(BasicInfo);
320  ZwClose(InstanceKey);
321  ZwClose(ChildKeyHandle);
322  ZwClose(CriticalDeviceKey);
323  return;
324  }
325 
326  /* Read the service entry from the CDDB */
327  Status = ZwQueryValueKey(ChildKeyHandle,
328  &ServiceU,
330  PartialInfo,
331  NeededLength,
332  &NeededLength);
333  if (Status != STATUS_SUCCESS)
334  {
335  ExFreePool(BasicInfo);
336  ExFreePool(PartialInfo);
337  ZwClose(ChildKeyHandle);
338  continue;
339  }
340 
341  /* Write it to the ENUM key */
342  Status = ZwSetValueKey(InstanceKey,
343  &ServiceU,
344  0,
345  REG_SZ,
346  PartialInfo->Data,
347  PartialInfo->DataLength);
348  if (Status != STATUS_SUCCESS)
349  {
350  ExFreePool(BasicInfo);
351  ExFreePool(PartialInfo);
352  ZwClose(ChildKeyHandle);
353  continue;
354  }
355 
356  DPRINT("Installed service '%S' for critical device '%wZ'\n", PartialInfo->Data, &ChildIdNameU);
357  }
358  else
359  {
360  DPRINT1("Installed NULL service for critical device '%wZ'\n", &ChildIdNameU);
361  }
362 
363  ExFreePool(OriginalIdBuffer);
364  ExFreePool(PartialInfo);
365  ExFreePool(BasicInfo);
366  ZwClose(InstanceKey);
367  ZwClose(ChildKeyHandle);
368  ZwClose(CriticalDeviceKey);
369 
370  /* That's it */
371  return;
372  }
373 
374  ExFreePool(BasicInfo);
375  }
376  else
377  {
378  /* Umm, not sure what happened here */
379  continue;
380  }
381  }
382 
383  /* Advance to the next ID */
384  IdBuffer += StringLength;
385  }
386 
387  ExFreePool(OriginalIdBuffer);
388  ZwClose(InstanceKey);
389  ZwClose(CriticalDeviceKey);
390 }
IN PUNICODE_STRING IN POBJECT_ATTRIBUTES ObjectAttributes
Definition: conport.c:35
_Must_inspect_result_ _In_ WDFDEVICE _In_ DEVICE_REGISTRY_PROPERTY _In_ ULONG BufferLength
Definition: wdfdevice.h:3767
#define STATUS_NO_MORE_ENTRIES
Definition: ntstatus.h:205
#define OBJ_CASE_INSENSITIVE
Definition: winternl.h:228
USHORT MaximumLength
Definition: env_spec_w32.h:370
#define TRUE
Definition: types.h:120
NTSYSAPI NTSTATUS NTAPI ZwClose(_In_ HANDLE Handle)
unsigned char * PUCHAR
Definition: retypes.h:3
NTSTATUS NTAPI IopCreateDeviceKeyPath(IN PCUNICODE_STRING RegistryPath, IN ULONG CreateOptions, OUT PHANDLE Handle)
Definition: pnpmgr.c:522
LONG NTSTATUS
Definition: precomp.h:26
uint16_t * PWCHAR
Definition: typedefs.h:56
if(dx==0 &&dy==0)
Definition: linetemp.h:174
#define OBJ_KERNEL_HANDLE
Definition: winternl.h:231
#define STATUS_BUFFER_TOO_SMALL
Definition: shellext.h:69
Status
Definition: gdiplustypes.h:24
#define REG_OPTION_NON_VOLATILE
Definition: nt_native.h:1057
__wchar_t WCHAR
Definition: xmlstorage.h:180
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
_In_ WDFCOLLECTION _In_ ULONG Index
Definition: Node.h:9
static const WCHAR L[]
Definition: oid.c:1250
#define ExAllocatePool(type, size)
Definition: fbtusb.h:44
VOID IopFixupDeviceId(PWCHAR String)
Definition: pnpmgr.c:32
#define STATUS_BUFFER_OVERFLOW
Definition: shellext.h:66
unsigned short USHORT
Definition: pedump.c:61
#define KEY_QUERY_VALUE
Definition: nt_native.h:1016
#define FIELD_OFFSET(t, f)
Definition: typedefs.h:255
#define NULL
Definition: types.h:112
_CRTIMP size_t __cdecl wcslen(_In_z_ const wchar_t *_Str)
#define DPRINT1
Definition: precomp.h:8
unsigned int ULONG
Definition: retypes.h:1
#define InitializeObjectAttributes(p, n, a, r, s)
Definition: reg.c:106
#define RtlCopyMemory(Destination, Source, Length)
Definition: typedefs.h:263
#define STATUS_SUCCESS
Definition: shellext.h:65
#define DPRINT
Definition: sndvol32.h:71
NTSYSAPI BOOLEAN NTAPI RtlEqualUnicodeString(PUNICODE_STRING String1, PUNICODE_STRING String2, BOOLEAN CaseInSensitive)
#define ExFreePool(addr)
Definition: env_spec_w32.h:352
#define KEY_ENUMERATE_SUB_KEYS
Definition: nt_native.h:1019
#define RTL_CONSTANT_STRING(s)
Definition: tunneltest.c:14
#define REG_SZ
Definition: layer.c:22

Referenced by PiInitializeDevNode().

◆ IopPrepareDeviceForRemoval() [1/2]

static NTSTATUS IopPrepareDeviceForRemoval ( PDEVICE_OBJECT  DeviceObject,
BOOLEAN  Force 
)
static

◆ IopPrepareDeviceForRemoval() [2/2]

static NTSTATUS IopPrepareDeviceForRemoval ( IN PDEVICE_OBJECT  DeviceObject,
BOOLEAN  Force 
)
static

Definition at line 1916 of file devaction.c.

1917 {
1921  PDEVICE_RELATIONS DeviceRelations;
1922  NTSTATUS Status;
1923 
1924  if ((DeviceNode->UserFlags & DNUF_NOT_DISABLEABLE) && !Force)
1925  {
1926  DPRINT1("Removal not allowed for %wZ\n", &DeviceNode->InstancePath);
1927  return STATUS_UNSUCCESSFUL;
1928  }
1929 
1931  {
1932  DPRINT1("Removal vetoed by failing the query remove request\n");
1933 
1935 
1936  return STATUS_UNSUCCESSFUL;
1937  }
1938 
1939  Stack.Parameters.QueryDeviceRelations.Type = RemovalRelations;
1940 
1942  &IoStatusBlock,
1944  &Stack);
1945  if (!NT_SUCCESS(Status))
1946  {
1947  DPRINT("IopInitiatePnpIrp() failed with status 0x%08lx\n", Status);
1948  DeviceRelations = NULL;
1949  }
1950  else
1951  {
1952  DeviceRelations = (PDEVICE_RELATIONS)IoStatusBlock.Information;
1953  }
1954 
1955  if (DeviceRelations)
1956  {
1957  Status = IopQueryRemoveDeviceRelations(DeviceRelations, Force);
1958  if (!NT_SUCCESS(Status))
1959  return Status;
1960  }
1961 
1963  if (!NT_SUCCESS(Status))
1964  {
1965  if (DeviceRelations)
1966  IopCancelRemoveDeviceRelations(DeviceRelations);
1967  return Status;
1968  }
1969 
1970  if (DeviceRelations)
1971  IopSendRemoveDeviceRelations(DeviceRelations);
1973 
1974  return STATUS_SUCCESS;
1975 }
static NTSTATUS IopQueryRemoveChildDevices(PDEVICE_NODE ParentDeviceNode, BOOLEAN Force)
Definition: devaction.c:1821
static NTSTATUS NTAPI IopQueryRemoveDevice(IN PDEVICE_OBJECT DeviceObject)
Definition: devaction.c:1795
#define DNUF_NOT_DISABLEABLE
Definition: iotypes.h:211
LONG NTSTATUS
Definition: precomp.h:26
static VOID NTAPI IopCancelRemoveDevice(IN PDEVICE_OBJECT DeviceObject)
Definition: devaction.c:1712
_In_ WDFREQUEST _In_ PIO_STACK_LOCATION Stack
Definition: wdfrequest.h:636
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
struct _DEVICE_RELATIONS * PDEVICE_RELATIONS
Status
Definition: gdiplustypes.h:24
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
static VOID IopSendRemoveChildDevices(PDEVICE_NODE ParentDeviceNode)
Definition: devaction.c:1678
Definition: Node.h:9
#define STATUS_UNSUCCESSFUL
Definition: udferr_usr.h:132
static VOID IopSendRemoveDeviceRelations(PDEVICE_RELATIONS DeviceRelations)
Definition: devaction.c:1661
static NTSTATUS IopQueryRemoveDeviceRelations(PDEVICE_RELATIONS DeviceRelations, BOOLEAN Force)
Definition: devaction.c:1875
static OUT PIO_STATUS_BLOCK IoStatusBlock
Definition: pipe.c:75
#define NULL
Definition: types.h:112
#define IRP_MN_QUERY_DEVICE_RELATIONS
static VOID IopCancelRemoveDeviceRelations(PDEVICE_RELATIONS DeviceRelations)
Definition: devaction.c:1745
#define DPRINT1
Definition: precomp.h:8
#define STATUS_SUCCESS
Definition: shellext.h:65
#define DPRINT
Definition: sndvol32.h:71
NTSTATUS NTAPI IopInitiatePnpIrp(IN PDEVICE_OBJECT DeviceObject, IN PIO_STATUS_BLOCK IoStatusBlock, IN UCHAR MinorFunction, IN PIO_STACK_LOCATION Stack)
PDEVICE_NODE FASTCALL IopGetDeviceNode(IN PDEVICE_OBJECT DeviceObject)
_Inout_ PVCB _In_ BOOLEAN Force
Definition: cdprocs.h:1415

◆ IopQueryCompatibleIds()

static NTSTATUS IopQueryCompatibleIds ( PDEVICE_NODE  DeviceNode,
HANDLE  InstanceKey 
)
static

Definition at line 1021 of file devaction.c.

1023 {
1026  PWSTR Ptr;
1028  NTSTATUS Status;
1030  BOOLEAN IsValidID;
1031 
1032  DPRINT("Sending IRP_MN_QUERY_ID.BusQueryCompatibleIDs to device stack\n");
1033 
1034  RtlZeroMemory(&Stack, sizeof(Stack));
1035  Stack.Parameters.QueryId.IdType = BusQueryCompatibleIDs;
1036  Status = IopInitiatePnpIrp(DeviceNode->PhysicalDeviceObject,
1037  &IoStatusBlock,
1039  &Stack);
1041  {
1043 
1044  if (!IsValidID)
1045  {
1046  DPRINT1("Invalid CompatibleIDs. DeviceNode - %p\n", DeviceNode);
1047  }
1048 
1049  TotalLength = 0;
1050 
1052  DPRINT("Compatible IDs:\n");
1053  while (*Ptr)
1054  {
1055  DPRINT(" %S\n", Ptr);
1056  Length = (ULONG)wcslen(Ptr) + 1;
1057 
1058  Ptr += Length;
1059  TotalLength += Length;
1060  }
1061  DPRINT("TotalLength: %hu\n", TotalLength);
1062  DPRINT("\n");
1063 
1064  RtlInitUnicodeString(&ValueName, L"CompatibleIDs");
1065  Status = ZwSetValueKey(InstanceKey,
1066  &ValueName,
1067  0,
1068  REG_MULTI_SZ,
1070  (TotalLength + 1) * sizeof(WCHAR));
1071  if (!NT_SUCCESS(Status))
1072  {
1073  DPRINT1("ZwSetValueKey() failed (Status %lx) or no Compatible ID returned\n", Status);
1074  }
1075  }
1076  else
1077  {
1078  DPRINT("IopInitiatePnpIrp() failed (Status %x)\n", Status);
1079  }
1080 
1081  return Status;
1082 }
#define IRP_MN_QUERY_ID
_In_ ULONG _In_ ULONG _In_ ULONG Length
Definition: ntddpcm.h:101
uint16_t * PWSTR
Definition: typedefs.h:56
_Must_inspect_result_ _In_ PFSRTL_PER_STREAM_CONTEXT Ptr
Definition: fsrtlfuncs.h:898
LONG NTSTATUS
Definition: precomp.h:26
uint16_t * PWCHAR
Definition: typedefs.h:56
_In_ ULONG TotalLength
Definition: usbdlib.h:158
_In_ WDFREQUEST _In_ PIO_STACK_LOCATION Stack
Definition: wdfrequest.h:636
#define REG_MULTI_SZ
Definition: nt_native.h:1501
unsigned char BOOLEAN
Status
Definition: gdiplustypes.h:24
static BOOLEAN IopValidateID(_In_ PWCHAR Id, _In_ BUS_QUERY_ID_TYPE QueryType)
Definition: devaction.c:124
__wchar_t WCHAR
Definition: xmlstorage.h:180
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
Definition: Node.h:9
_Must_inspect_result_ _In_ WDFKEY _In_ PCUNICODE_STRING ValueName
Definition: wdfregistry.h:240
static const WCHAR L[]
Definition: oid.c:1250
static OUT PIO_STATUS_BLOCK IoStatusBlock
Definition: pipe.c:75
_CRTIMP size_t __cdecl wcslen(_In_z_ const wchar_t *_Str)
#define DPRINT1
Definition: precomp.h:8
unsigned int ULONG
Definition: retypes.h:1
NTSYSAPI VOID NTAPI RtlInitUnicodeString(PUNICODE_STRING DestinationString, PCWSTR SourceString)
#define RtlZeroMemory(Destination, Length)
Definition: typedefs.h:262
#define DPRINT
Definition: sndvol32.h:71
NTSTATUS NTAPI IopInitiatePnpIrp(IN PDEVICE_OBJECT DeviceObject, IN PIO_STATUS_BLOCK IoStatusBlock, IN UCHAR MinorFunction, IN PIO_STACK_LOCATION Stack)

Referenced by PiInitializeDevNode(), and PiStartDeviceFinal().

◆ IopQueryDeviceCapabilities()

NTSTATUS NTAPI IopQueryDeviceCapabilities ( PDEVICE_NODE  DeviceNode,
PDEVICE_CAPABILITIES  DeviceCaps 
)

Definition at line 853 of file devaction.c.

855 {
856  IO_STATUS_BLOCK StatusBlock;
859  HANDLE InstanceKey;
861 
862  /* Set up the Header */
863  RtlZeroMemory(DeviceCaps, sizeof(DEVICE_CAPABILITIES));
864  DeviceCaps->Size = sizeof(DEVICE_CAPABILITIES);
865  DeviceCaps->Version = 1;
866  DeviceCaps->Address = -1;
867  DeviceCaps->UINumber = -1;
868 
869  /* Set up the Stack */
871  Stack.Parameters.DeviceCapabilities.Capabilities = DeviceCaps;
872 
873  /* Send the IRP */
874  Status = IopInitiatePnpIrp(DeviceNode->PhysicalDeviceObject,
875  &StatusBlock,
877  &Stack);
878  if (!NT_SUCCESS(Status))
879  {
881  {
882  DPRINT1("IRP_MN_QUERY_CAPABILITIES failed with status 0x%lx\n", Status);
883  }
884  return Status;
885  }
886 
887  /* Map device capabilities to capability flags */
888  DeviceNode->CapabilityFlags = 0;
889  if (DeviceCaps->LockSupported)
890  DeviceNode->CapabilityFlags |= 0x00000001; // CM_DEVCAP_LOCKSUPPORTED
891 
892  if (DeviceCaps->EjectSupported)
893  DeviceNode->CapabilityFlags |= 0x00000002; // CM_DEVCAP_EJECTSUPPORTED
894 
895  if (DeviceCaps->Removable)
896  DeviceNode->CapabilityFlags |= 0x00000004; // CM_DEVCAP_REMOVABLE
897 
898  if (DeviceCaps->DockDevice)
899  DeviceNode->CapabilityFlags |= 0x00000008; // CM_DEVCAP_DOCKDEVICE
900 
901  if (DeviceCaps->UniqueID)
902  DeviceNode->CapabilityFlags |= 0x00000010; // CM_DEVCAP_UNIQUEID
903 
904  if (DeviceCaps->SilentInstall)
905  DeviceNode->CapabilityFlags |= 0x00000020; // CM_DEVCAP_SILENTINSTALL
906 
907  if (DeviceCaps->RawDeviceOK)
908  DeviceNode->CapabilityFlags |= 0x00000040; // CM_DEVCAP_RAWDEVICEOK
909 
910  if (DeviceCaps->SurpriseRemovalOK)
911  DeviceNode->CapabilityFlags |= 0x00000080; // CM_DEVCAP_SURPRISEREMOVALOK
912 
913  if (DeviceCaps->HardwareDisabled)
914  DeviceNode->CapabilityFlags |= 0x00000100; // CM_DEVCAP_HARDWAREDISABLED
915 
916  if (DeviceCaps->NonDynamic)
917  DeviceNode->CapabilityFlags |= 0x00000200; // CM_DEVCAP_NONDYNAMIC
918 
919  if (DeviceCaps->NoDisplayInUI)
920  DeviceNode->UserFlags |= DNUF_DONT_SHOW_IN_UI;
921  else
922  DeviceNode->UserFlags &= ~DNUF_DONT_SHOW_IN_UI;
923 
924  Status = IopCreateDeviceKeyPath(&DeviceNode->InstancePath, REG_OPTION_NON_VOLATILE, &InstanceKey);
925  if (NT_SUCCESS(Status))
926  {
927  /* Set 'Capabilities' value */
928  RtlInitUnicodeString(&ValueName, L"Capabilities");
929  Status = ZwSetValueKey(InstanceKey,
930  &ValueName,
931  0,
932  REG_DWORD,
933  &DeviceNode->CapabilityFlags,
934  sizeof(ULONG));
935 
936  /* Set 'UINumber' value */
937  if (DeviceCaps->UINumber != MAXULONG)
938  {
939  RtlInitUnicodeString(&ValueName, L"UINumber");
940  Status = ZwSetValueKey(InstanceKey,
941  &ValueName,
942  0,
943  REG_DWORD,
944  &DeviceCaps->UINumber,
945  sizeof(ULONG));
946  }
947 
948  ZwClose(InstanceKey);
949  }
950 
951  return Status;
952 }
return STATUS_NOT_SUPPORTED
NTSYSAPI NTSTATUS NTAPI ZwClose(_In_ HANDLE Handle)
NTSTATUS NTAPI IopCreateDeviceKeyPath(IN PCUNICODE_STRING RegistryPath, IN ULONG CreateOptions, OUT PHANDLE Handle)
Definition: pnpmgr.c:522
LONG NTSTATUS
Definition: precomp.h:26
DEVICE_CAPABILITIES
Definition: iotypes.h:965
_In_ WDFREQUEST _In_ PIO_STACK_LOCATION Stack
Definition: wdfrequest.h:636
#define DNUF_DONT_SHOW_IN_UI
Definition: iotypes.h:209
Status
Definition: gdiplustypes.h:24
#define REG_OPTION_NON_VOLATILE
Definition: nt_native.h:1057
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
Definition: Node.h:9
_Must_inspect_result_ _In_ WDFKEY _In_ PCUNICODE_STRING ValueName
Definition: wdfregistry.h:240
static const WCHAR L[]
Definition: oid.c:1250
#define MAXULONG
Definition: typedefs.h:251
#define DPRINT1
Definition: precomp.h:8
unsigned int ULONG
Definition: retypes.h:1
NTSYSAPI VOID NTAPI RtlInitUnicodeString(PUNICODE_STRING DestinationString, PCWSTR SourceString)
#define RtlZeroMemory(Destination, Length)
Definition: typedefs.h:262
#define REG_DWORD
Definition: sdbapi.c:596
NTSTATUS NTAPI IopInitiatePnpIrp(IN PDEVICE_OBJECT DeviceObject, IN PIO_STATUS_BLOCK IoStatusBlock, IN UCHAR MinorFunction, IN PIO_STACK_LOCATION Stack)
#define IRP_MN_QUERY_CAPABILITIES

Referenced by IoGetDeviceProperty(), IopCreateDeviceInstancePath(), IoRequestDeviceEject(), and PiStartDeviceFinal().

◆ IopQueryHardwareIds()

static NTSTATUS IopQueryHardwareIds ( PDEVICE_NODE  DeviceNode,
HANDLE  InstanceKey 
)
static

Definition at line 956 of file devaction.c.

958 {
961  PWSTR Ptr;
965  BOOLEAN IsValidID;
966 
967  DPRINT("Sending IRP_MN_QUERY_ID.BusQueryHardwareIDs to device stack\n");
968 
969  RtlZeroMemory(&Stack, sizeof(Stack));
970  Stack.Parameters.QueryId.IdType = BusQueryHardwareIDs;
971  Status = IopInitiatePnpIrp(DeviceNode->PhysicalDeviceObject,
972  &IoStatusBlock,
974  &Stack);
975  if (NT_SUCCESS(Status))
976  {
978 
979  if (!IsValidID)
980  {
981  DPRINT1("Invalid HardwareIDs. DeviceNode - %p\n", DeviceNode);
982  }
983 
984  TotalLength = 0;
985 
987  DPRINT("Hardware IDs:\n");
988  while (*Ptr)
989  {
990  DPRINT(" %S\n", Ptr);
991  Length = (ULONG)wcslen(Ptr) + 1;
992 
993  Ptr += Length;
994  TotalLength += Length;
995  }
996  DPRINT("TotalLength: %hu\n", TotalLength);
997  DPRINT("\n");
998 
999  RtlInitUnicodeString(&ValueName, L"HardwareID");
1000  Status = ZwSetValueKey(InstanceKey,
1001  &ValueName,
1002  0,
1003  REG_MULTI_SZ,
1005  (TotalLength + 1) * sizeof(WCHAR));
1006  if (!NT_SUCCESS(Status))
1007  {
1008  DPRINT1("ZwSetValueKey() failed (Status %lx)\n", Status);
1009  }
1010  }
1011  else
1012  {
1013  DPRINT("IopInitiatePnpIrp() failed (Status %x)\n", Status);
1014  }
1015 
1016  return Status;
1017 }
#define IRP_MN_QUERY_ID
_In_ ULONG _In_ ULONG _In_ ULONG Length
Definition: ntddpcm.h:101
uint16_t * PWSTR
Definition: typedefs.h:56
_Must_inspect_result_ _In_ PFSRTL_PER_STREAM_CONTEXT Ptr
Definition: fsrtlfuncs.h:898
LONG NTSTATUS
Definition: precomp.h:26
uint16_t * PWCHAR
Definition: typedefs.h:56
_In_ ULONG TotalLength
Definition: usbdlib.h:158
_In_ WDFREQUEST _In_ PIO_STACK_LOCATION Stack
Definition: wdfrequest.h:636
#define REG_MULTI_SZ
Definition: nt_native.h:1501
unsigned char BOOLEAN
Status
Definition: gdiplustypes.h:24
static BOOLEAN IopValidateID(_In_ PWCHAR Id, _In_ BUS_QUERY_ID_TYPE QueryType)
Definition: devaction.c:124
__wchar_t WCHAR
Definition: xmlstorage.h:180
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
Definition: Node.h:9
_Must_inspect_result_ _In_ WDFKEY _In_ PCUNICODE_STRING ValueName
Definition: wdfregistry.h:240
static const WCHAR L[]
Definition: oid.c:1250
static OUT PIO_STATUS_BLOCK IoStatusBlock
Definition: pipe.c:75
_CRTIMP size_t __cdecl wcslen(_In_z_ const wchar_t *_Str)
#define DPRINT1
Definition: precomp.h:8
unsigned int ULONG
Definition: retypes.h:1
NTSYSAPI VOID NTAPI RtlInitUnicodeString(PUNICODE_STRING DestinationString, PCWSTR SourceString)
#define RtlZeroMemory(Destination, Length)
Definition: typedefs.h:262
#define DPRINT
Definition: sndvol32.h:71
NTSTATUS NTAPI IopInitiatePnpIrp(IN PDEVICE_OBJECT DeviceObject, IN PIO_STATUS_BLOCK IoStatusBlock, IN UCHAR MinorFunction, IN PIO_STACK_LOCATION Stack)

Referenced by PiInitializeDevNode(), and PiStartDeviceFinal().

◆ IopQueryRemoveChildDevices()

static NTSTATUS IopQueryRemoveChildDevices ( PDEVICE_NODE  ParentDeviceNode,
BOOLEAN  Force 
)
static

Definition at line 1821 of file devaction.c.

1822 {
1823  PDEVICE_NODE ChildDeviceNode, NextDeviceNode, FailedRemoveDevice;
1824  NTSTATUS Status;
1825  KIRQL OldIrql;
1826 
1828  ChildDeviceNode = ParentDeviceNode->Child;
1829  while (ChildDeviceNode != NULL)
1830  {
1831  NextDeviceNode = ChildDeviceNode->Sibling;
1834 
1836  if (!NT_SUCCESS(Status))
1837  {
1838  FailedRemoveDevice = ChildDeviceNode;
1839  goto cleanup;
1840  }
1841 
1843  ChildDeviceNode = NextDeviceNode;
1844  }
1846 
1847  return STATUS_SUCCESS;
1848 
1849 cleanup:
1851  ChildDeviceNode = ParentDeviceNode->Child;
1852  while (ChildDeviceNode != NULL)
1853  {
1854  NextDeviceNode = ChildDeviceNode->Sibling;
1856 
1858 
1859  /* IRP_MN_CANCEL_REMOVE_DEVICE is also sent to the device
1860  * that failed the IRP_MN_QUERY_REMOVE_DEVICE request */
1861  if (ChildDeviceNode == FailedRemoveDevice)
1862  return Status;
1863 
1864  ChildDeviceNode = NextDeviceNode;
1865 
1867  }
1869 
1870  return Status;
1871 }
PDEVICE_OBJECT PhysicalDeviceObject
Definition: iotypes.h:850
PNP_DEVNODE_STATE PiSetDevNodeState(_In_ PDEVICE_NODE DeviceNode, _In_ PNP_DEVNODE_STATE NewState)
Definition: devnode.c:108
LONG NTSTATUS
Definition: precomp.h:26
VOID NTAPI KeAcquireSpinLock(PKSPIN_LOCK SpinLock, PKIRQL OldIrql)
Definition: spinlock.c:50
UCHAR KIRQL
Definition: env_spec_w32.h:591
struct _DEVICE_NODE * Child
Definition: iotypes.h:835
KIRQL OldIrql
Definition: mm.h:1502
Status
Definition: gdiplustypes.h:24
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
static NTSTATUS IopPrepareDeviceForRemoval(PDEVICE_OBJECT DeviceObject, BOOLEAN Force)
KSPIN_LOCK IopDeviceTreeLock
Definition: devnode.c:19
static VOID IopCancelPrepareDeviceForRemoval(PDEVICE_OBJECT DeviceObject)
Definition: devaction.c:1763
#define NULL
Definition: types.h:112
#define KeReleaseSpinLock(sl, irql)
Definition: env_spec_w32.h:627
struct _DEVICE_NODE * Sibling
Definition: iotypes.h:834
char * cleanup(char *str)
Definition: wpickclick.c:99
#define STATUS_SUCCESS
Definition: shellext.h:65
_Inout_ PVCB _In_ BOOLEAN Force
Definition: cdprocs.h:1415

Referenced by IopPrepareDeviceForRemoval(), and IoRequestDeviceEject().

◆ IopQueryRemoveDevice()

static NTSTATUS NTAPI IopQueryRemoveDevice ( IN PDEVICE_OBJECT  DeviceObject)
static

Definition at line 1795 of file devaction.c.

1796 {
1798  NTSTATUS Status;
1799 
1800  ASSERT(DeviceNode);
1801 
1802  IopQueueTargetDeviceEvent(&GUID_DEVICE_REMOVE_PENDING,
1803  &DeviceNode->InstancePath);
1804 
1806 
1807  PiNotifyTargetDeviceChange(&GUID_TARGET_DEVICE_QUERY_REMOVE, DeviceObject, NULL);
1808 
1809  if (!NT_SUCCESS(Status))
1810  {
1811  DPRINT1("Removal vetoed by %wZ\n", &DeviceNode->InstancePath);
1812  IopQueueTargetDeviceEvent(&GUID_DEVICE_REMOVAL_VETOED,
1813  &DeviceNode->InstancePath);
1814  }
1815 
1816  return Status;
1817 }
LONG NTSTATUS
Definition: precomp.h:26
static NTSTATUS PiIrpSendRemoveCheckVpb(_In_ PDEVICE_OBJECT DeviceObject, _In_ UCHAR MinorFunction)
Sends one of the remove IRPs to the device stack.
Definition: devaction.c:1578
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
#define IRP_MN_QUERY_REMOVE_DEVICE
Status
Definition: gdiplustypes.h:24
NTSTATUS IopQueueTargetDeviceEvent(const GUID *Guid, PUNICODE_STRING DeviceIds)
Definition: plugplay.c:43
#define ASSERT(a)
Definition: mode.c:44
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
Definition: Node.h:9
#define NULL
Definition: types.h:112
#define DPRINT1
Definition: precomp.h:8
VOID PiNotifyTargetDeviceChange(_In_ LPCGUID Event, _In_ PDEVICE_OBJECT DeviceObject, _In_opt_ PTARGET_DEVICE_CUSTOM_NOTIFICATION CustomNotification)
Delivers the event to all drivers subscribed to EventCategoryTargetDeviceChange PnP event.
Definition: pnpnotify.c:258
PDEVICE_NODE FASTCALL IopGetDeviceNode(IN PDEVICE_OBJECT DeviceObject)

Referenced by IopPrepareDeviceForRemoval().

◆ IopQueryRemoveDeviceRelations()

static NTSTATUS IopQueryRemoveDeviceRelations ( PDEVICE_RELATIONS  DeviceRelations,
BOOLEAN  Force 
)
static

Definition at line 1875 of file devaction.c.

1876 {
1877  /* This function DOES NOT dereference the device objects on SUCCESS
1878  * but it DOES dereference device objects on FAILURE */
1879 
1880  ULONG i, j;
1881  NTSTATUS Status;
1882 
1883  for (i = 0; i < DeviceRelations->Count; i++)
1884  {
1885  Status = IopPrepareDeviceForRemoval(DeviceRelations->Objects[i], Force);
1886  if (!NT_SUCCESS(Status))
1887  {
1888  j = i;
1889  goto cleanup;
1890  }
1891  }
1892 
1893  return STATUS_SUCCESS;
1894 
1895 cleanup:
1896  /* IRP_MN_CANCEL_REMOVE_DEVICE is also sent to the device
1897  * that failed the IRP_MN_QUERY_REMOVE_DEVICE request */
1898  for (i = 0; i <= j; i++)
1899  {
1900  IopCancelPrepareDeviceForRemoval(DeviceRelations->Objects[i]);
1901  ObDereferenceObject(DeviceRelations->Objects[i]);
1902  DeviceRelations->Objects[i] = NULL;
1903  }
1904  for (; i < DeviceRelations->Count; i++)
1905  {
1906  ObDereferenceObject(DeviceRelations->Objects[i]);
1907  DeviceRelations->Objects[i] = NULL;
1908  }
1909  ExFreePool(DeviceRelations);
1910 
1911  return Status;
1912 }
PDEVICE_OBJECT Objects[1]
Definition: iotypes.h:2163
LONG NTSTATUS
Definition: precomp.h:26
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint GLint GLint j
Definition: glfuncs.h:250
Status
Definition: gdiplustypes.h:24
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
#define ObDereferenceObject
Definition: obfuncs.h:203
static NTSTATUS IopPrepareDeviceForRemoval(PDEVICE_OBJECT DeviceObject, BOOLEAN Force)
static VOID IopCancelPrepareDeviceForRemoval(PDEVICE_OBJECT DeviceObject)
Definition: devaction.c:1763
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
#define NULL
Definition: types.h:112
unsigned int ULONG
Definition: retypes.h:1
char * cleanup(char *str)
Definition: wpickclick.c:99
#define STATUS_SUCCESS
Definition: shellext.h:65
#define ExFreePool(addr)
Definition: env_spec_w32.h:352
_Inout_ PVCB _In_ BOOLEAN Force
Definition: cdprocs.h:1415

Referenced by IopPrepareDeviceForRemoval(), and IoRequestDeviceEject().

◆ IopRemoveDevice()

static NTSTATUS IopRemoveDevice ( PDEVICE_NODE  DeviceNode)
static

Definition at line 1979 of file devaction.c.

1980 {
1981  NTSTATUS Status;
1982 
1983  // This function removes the device subtree, with the root in DeviceNode
1984  // atm everyting is in fact done inside this function, which is completely wrong.
1985  // The right implementation should have a separate removal worker thread and
1986  // properly do device node state transitions
1987 
1988  DPRINT("Removing device: %wZ\n", &DeviceNode->InstancePath);
1989 
1990  BOOLEAN surpriseRemoval = (_Bool)(DeviceNode->Flags & DNF_DEVICE_GONE);
1991 
1992  Status = IopPrepareDeviceForRemoval(DeviceNode->PhysicalDeviceObject, surpriseRemoval);
1993 
1994  if (surpriseRemoval)
1995  {
1996  IopSendSurpriseRemoval(DeviceNode->PhysicalDeviceObject);
1997  IopQueueTargetDeviceEvent(&GUID_DEVICE_SURPRISE_REMOVAL, &DeviceNode->InstancePath);
1998  }
1999 
2000  if (NT_SUCCESS(Status))
2001  {
2002  IopSendRemoveDevice(DeviceNode->PhysicalDeviceObject);
2003  if (surpriseRemoval)
2004  {
2005  IopQueueTargetDeviceEvent(&GUID_DEVICE_SAFE_REMOVAL, &DeviceNode->InstancePath);
2006  }
2007  return STATUS_SUCCESS;
2008  }
2009 
2010  return Status;
2011 }
LONG NTSTATUS
Definition: precomp.h:26
unsigned char BOOLEAN
static VOID NTAPI IopSendRemoveDevice(IN PDEVICE_OBJECT DeviceObject)
Definition: devaction.c:1641
Status
Definition: gdiplustypes.h:24
NTSTATUS IopQueueTargetDeviceEvent(const GUID *Guid, PUNICODE_STRING DeviceIds)
Definition: plugplay.c:43
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
Definition: Node.h:9
static VOID NTAPI IopSendSurpriseRemoval(IN PDEVICE_OBJECT DeviceObject)
Definition: devaction.c:1702
#define DNF_DEVICE_GONE
Definition: iotypes.h:186
static NTSTATUS IopPrepareDeviceForRemoval(PDEVICE_OBJECT DeviceObject, BOOLEAN Force)
#define STATUS_SUCCESS
Definition: shellext.h:65
#define DPRINT
Definition: sndvol32.h:71

Referenced by IoInvalidateDeviceState(), and PiDevNodeStateMachine().

◆ IopSendEject()

static NTSTATUS NTAPI IopSendEject ( IN PDEVICE_OBJECT  DeviceObject)
static

Definition at line 2215 of file devaction.c.

2216 {
2218  PVOID Dummy;
2219 
2221  Stack.MajorFunction = IRP_MJ_PNP;
2222  Stack.MinorFunction = IRP_MN_EJECT;
2223 
2224  return IopSynchronousCall(DeviceObject, &Stack, &Dummy);
2225 }
#define IRP_MJ_PNP
Definition: cdrw_usr.h:52
#define IRP_MN_EJECT
_In_ WDFREQUEST _In_ PIO_STACK_LOCATION Stack
Definition: wdfrequest.h:636
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
NTSTATUS IopSynchronousCall(IN PDEVICE_OBJECT DeviceObject, IN PIO_STACK_LOCATION IoStackLocation, OUT PVOID *Information)
#define RtlZeroMemory(Destination, Length)
Definition: typedefs.h:262

Referenced by IoRequestDeviceEject().

◆ IopSendRemoveChildDevices()

static VOID IopSendRemoveChildDevices ( PDEVICE_NODE  ParentDeviceNode)
static

Definition at line 1678 of file devaction.c.

1679 {
1680  PDEVICE_NODE ChildDeviceNode, NextDeviceNode;
1681  KIRQL OldIrql;
1682 
1684  ChildDeviceNode = ParentDeviceNode->Child;
1685  while (ChildDeviceNode != NULL)
1686  {
1687  NextDeviceNode = ChildDeviceNode->Sibling;
1689 
1690  IopSendRemoveDevice(ChildDeviceNode->PhysicalDeviceObject);
1691 
1692  ChildDeviceNode = NextDeviceNode;
1693 
1695  }
1697 }
PDEVICE_OBJECT PhysicalDeviceObject
Definition: iotypes.h:850
VOID NTAPI KeAcquireSpinLock(PKSPIN_LOCK SpinLock, PKIRQL OldIrql)
Definition: spinlock.c:50
UCHAR KIRQL
Definition: env_spec_w32.h:591
struct _DEVICE_NODE * Child
Definition: iotypes.h:835
KIRQL OldIrql
Definition: mm.h:1502
static VOID NTAPI IopSendRemoveDevice(IN PDEVICE_OBJECT DeviceObject)
Definition: devaction.c:1641
KSPIN_LOCK IopDeviceTreeLock
Definition: devnode.c:19
#define NULL
Definition: types.h:112
#define KeReleaseSpinLock(sl, irql)
Definition: env_spec_w32.h:627
struct _DEVICE_NODE * Sibling
Definition: iotypes.h:834

Referenced by IopPrepareDeviceForRemoval(), and IoRequestDeviceEject().

◆ IopSendRemoveDevice()

static VOID NTAPI IopSendRemoveDevice ( IN PDEVICE_OBJECT  DeviceObject)
static

Definition at line 1641 of file devaction.c.

1642 {
1644 
1646 
1647  /* Drivers should never fail a IRP_MN_REMOVE_DEVICE request */
1649 
1651  PiNotifyTargetDeviceChange(&GUID_TARGET_DEVICE_REMOVE_COMPLETE, DeviceObject, NULL);
1653  if (refCount != 0)
1654  {
1655  DPRINT1("Leaking device %wZ, refCount = %d\n", &DeviceNode->InstancePath, (INT32)refCount);
1656  }
1657 }
#define IRP_MN_REMOVE_DEVICE
PNP_DEVNODE_STATE PiSetDevNodeState(_In_ PDEVICE_NODE DeviceNode, _In_ PNP_DEVNODE_STATE NewState)
Definition: devnode.c:108
static NTSTATUS PiIrpSendRemoveCheckVpb(_In_ PDEVICE_OBJECT DeviceObject, _In_ UCHAR MinorFunction)
Sends one of the remove IRPs to the device stack.
Definition: devaction.c:1578
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
#define ASSERT(a)
Definition: mode.c:44
#define ObDereferenceObject
Definition: obfuncs.h:203
Definition: Node.h:9
__int3264 LONG_PTR
Definition: mstsclib_h.h:276
#define NULL
Definition: types.h:112
#define DPRINT1
Definition: precomp.h:8
VOID PiNotifyTargetDeviceChange(_In_ LPCGUID Event, _In_ PDEVICE_OBJECT DeviceObject, _In_opt_ PTARGET_DEVICE_CUSTOM_NOTIFICATION CustomNotification)
Delivers the event to all drivers subscribed to EventCategoryTargetDeviceChange PnP event.
Definition: pnpnotify.c:258
signed int INT32
PDEVICE_NODE FASTCALL IopGetDeviceNode(IN PDEVICE_OBJECT DeviceObject)

Referenced by IopRemoveDevice(), IopSendRemoveChildDevices(), and IopSendRemoveDeviceRelations().

◆ IopSendRemoveDeviceRelations()

static VOID IopSendRemoveDeviceRelations ( PDEVICE_RELATIONS  DeviceRelations)
static

Definition at line 1661 of file devaction.c.

1662 {
1663  /* This function DOES dereference the device objects in all cases */
1664 
1665  ULONG i;
1666 
1667  for (i = 0; i < DeviceRelations->Count; i++)
1668  {
1669  IopSendRemoveDevice(DeviceRelations->Objects[i]);
1670  DeviceRelations->Objects[i] = NULL;
1671  }
1672 
1673  ExFreePool(DeviceRelations);
1674 }
PDEVICE_OBJECT Objects[1]
Definition: iotypes.h:2163
static VOID NTAPI IopSendRemoveDevice(IN PDEVICE_OBJECT DeviceObject)
Definition: devaction.c:1641
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
#define NULL
Definition: types.h:112
unsigned int ULONG
Definition: retypes.h:1
#define ExFreePool(addr)
Definition: env_spec_w32.h:352

Referenced by IopPrepareDeviceForRemoval(), and IoRequestDeviceEject().

◆ IopSendSurpriseRemoval()

static VOID NTAPI IopSendSurpriseRemoval ( IN PDEVICE_OBJECT  DeviceObject)
static

Definition at line 1702 of file devaction.c.

1703 {
1705  /* Drivers should never fail a IRP_MN_SURPRISE_REMOVAL request */
1707 }
static NTSTATUS PiIrpSendRemoveCheckVpb(_In_ PDEVICE_OBJECT DeviceObject, _In_ UCHAR MinorFunction)
Sends one of the remove IRPs to the device stack.
Definition: devaction.c:1578
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
#define IRP_MN_SURPRISE_REMOVAL
Definition: ntifs_ex.h:408
#define ASSERT(a)
Definition: mode.c:44
PDEVICE_NODE FASTCALL IopGetDeviceNode(IN PDEVICE_OBJECT DeviceObject)

Referenced by IopRemoveDevice().

◆ IopSetDeviceInstanceData()

NTSTATUS IopSetDeviceInstanceData ( HANDLE  InstanceKey,
PDEVICE_NODE  DeviceNode 
)

Definition at line 606 of file pnpmgr.c.

608 {
611  HANDLE LogConfKey, ControlKey, DeviceParamsKey;
612  ULONG ResCount;
615 
616  DPRINT("IopSetDeviceInstanceData() called\n");
617 
618  /* Create the 'LogConf' key */
619  RtlInitUnicodeString(&KeyName, L"LogConf");
621  &KeyName,
623  InstanceKey,
624  NULL);
625  Status = ZwCreateKey(&LogConfKey,
628  0,
629  NULL,
630  // FIXME? In r53694 it was silently turned from non-volatile into this,
631  // without any extra warning. Is this still needed??
633  NULL);
634  if (NT_SUCCESS(Status))
635  {
636  /* Set 'BootConfig' value */
637  if (DeviceNode->BootResources != NULL)
638  {
639  ResCount = DeviceNode->BootResources->Count;
640  if (ResCount != 0)
641  {
642  RtlInitUnicodeString(&KeyName, L"BootConfig");
643  Status = ZwSetValueKey(LogConfKey,
644  &KeyName,
645  0,
647  DeviceNode->BootResources,
648  PnpDetermineResourceListSize(DeviceNode->BootResources));
649  }
650  }
651 
652  /* Set 'BasicConfigVector' value */
653  if (DeviceNode->ResourceRequirements != NULL &&
654  DeviceNode->ResourceRequirements->ListSize != 0)
655  {
656  RtlInitUnicodeString(&KeyName, L"BasicConfigVector");
657  Status = ZwSetValueKey(LogConfKey,
658  &KeyName,
659  0,
661  DeviceNode->ResourceRequirements,
662  DeviceNode->ResourceRequirements->ListSize);
663  }
664 
665  ZwClose(LogConfKey);
666  }
667 
668  /* Set the 'ConfigFlags' value */
669  RtlInitUnicodeString(&KeyName, L"ConfigFlags");
670  Status = ZwQueryValueKey(InstanceKey,
671  &KeyName,
673  NULL,
674  0,
675  &ResultLength);
677  {
678  /* Write the default value */
679  ULONG DefaultConfigFlags = 0;
680  Status = ZwSetValueKey(InstanceKey,
681  &KeyName,
682  0,
683  REG_DWORD,
684  &DefaultConfigFlags,
685  sizeof(DefaultConfigFlags));
686  }
687 
688  /* Create the 'Control' key */
689  RtlInitUnicodeString(&KeyName, L"Control");
691  &KeyName,
693  InstanceKey,
694  NULL);
695  Status = ZwCreateKey(&ControlKey,
696  0,
698  0,
699  NULL,
701  NULL);
702  if (NT_SUCCESS(Status))
703  ZwClose(ControlKey);
704 
705  /* Create the 'Device Parameters' key and set the 'FirmwareIdentified' value for all ACPI-enumerated devices */
706  if (_wcsnicmp(DeviceNode->InstancePath.Buffer, L"ACPI\\", 5) == 0)
707  {
708  RtlInitUnicodeString(&KeyName, L"Device Parameters");
710  &KeyName,
712  InstanceKey,
713  NULL);
714  Status = ZwCreateKey(&DeviceParamsKey,
715  0,
717  0,
718  NULL,
720  NULL);
721  if (NT_SUCCESS(Status))
722  {
723  ULONG FirmwareIdentified = 1;
724  RtlInitUnicodeString(&KeyName, L"FirmwareIdentified");
725  Status = ZwSetValueKey(DeviceParamsKey,
726  &KeyName,
727  0,
728  REG_DWORD,
729  &FirmwareIdentified,
730  sizeof(FirmwareIdentified));
731 
732  ZwClose(DeviceParamsKey);
733  }
734  }
735 
736  DPRINT("IopSetDeviceInstanceData() done\n");
737 
738  return Status;
739 }
IN PUNICODE_STRING IN POBJECT_ATTRIBUTES ObjectAttributes
Definition: conport.c:35
#define OBJ_CASE_INSENSITIVE
Definition: winternl.h:228
NTSYSAPI NTSTATUS NTAPI ZwClose(_In_ HANDLE Handle)
LONG NTSTATUS
Definition: precomp.h:26
_Check_return_ _CRTIMP int __cdecl _wcsnicmp(_In_reads_or_z_(_MaxCount) const wchar_t *_Str1, _In_reads_or_z_(_MaxCount) const wchar_t *_Str2, _In_ size_t _MaxCount)
#define OBJ_KERNEL_HANDLE
Definition: winternl.h:231
#define REG_RESOURCE_REQUIREMENTS_LIST
Definition: nt_native.h:1504
#define REG_RESOURCE_LIST
Definition: nt_native.h:1502
_Must_inspect_result_ _In_ WDFDEVICE _In_ PCUNICODE_STRING KeyName
Definition: wdfdevice.h:2697
Status
Definition: gdiplustypes.h:24
#define REG_OPTION_NON_VOLATILE
Definition: nt_native.h:1057
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
Definition: Node.h:9
static const WCHAR L[]
Definition: oid.c:1250
ULONG NTAPI PnpDetermineResourceListSize(IN PCM_RESOURCE_LIST ResourceList)
Definition: pnpmgr.c:1807
#define STATUS_OBJECT_NAME_NOT_FOUND
Definition: udferr_usr.h:149
#define KEY_ALL_ACCESS
Definition: nt_native.h:1041
#define NULL
Definition: types.h:112
unsigned int ULONG
Definition: retypes.h:1
NTSYSAPI VOID NTAPI RtlInitUnicodeString(PUNICODE_STRING DestinationString, PCWSTR SourceString)
#define InitializeObjectAttributes(p, n, a, r, s)
Definition: reg.c:106
_Must_inspect_result_ _In_ WDFDEVICE _In_ DEVICE_REGISTRY_PROPERTY _In_ ULONG _Out_ PULONG ResultLength
Definition: wdfdevice.h:3776
#define REG_OPTION_VOLATILE
Definition: nt_native.h:1060
#define DPRINT
Definition: sndvol32.h:71
#define REG_DWORD
Definition: sdbapi.c:596

Referenced by PiInitializeDevNode().

◆ IopSetServiceEnumData()

static NTSTATUS IopSetServiceEnumData ( _In_ PDEVICE_NODE  DeviceNode,
_In_ HANDLE  InstanceHandle 
)
static

Definition at line 1342 of file devaction.c.

1345 {
1346  UNICODE_STRING ServicesKeyPath = RTL_CONSTANT_STRING(L"\\Registry\\Machine\\System\\CurrentControlSet\\Services\\");
1347  UNICODE_STRING ServiceKeyName;
1348  UNICODE_STRING EnumKeyName;
1351  PKEY_VALUE_FULL_INFORMATION KeyValueInformation, kvInfo2;
1352  HANDLE ServiceKey = NULL, ServiceEnumKey = NULL;
1354  ULONG Count = 0, NextInstance = 0;
1355  WCHAR ValueBuffer[6];
1357 
1358  // obtain the device node's ServiceName
1359  Status = IopGetRegistryValue(InstanceHandle, L"Service", &kvInfo2);
1360  if (!NT_SUCCESS(Status))
1361  {
1362  return Status;
1363  }
1364 
1365  if (kvInfo2->Type != REG_SZ || kvInfo2->DataLength <= sizeof(WCHAR))
1366  {
1367  ExFreePool(kvInfo2);
1368  return STATUS_UNSUCCESSFUL;
1369  }
1370 
1371  ServiceName.MaximumLength = kvInfo2->DataLength;
1372  ServiceName.Length = kvInfo2->DataLength - sizeof(UNICODE_NULL);
1373  ServiceName.Buffer = (PVOID)((ULONG_PTR)kvInfo2 + kvInfo2->DataOffset);
1374 
1375  DPRINT("IopSetServiceEnumData(%p)\n", DeviceNode);
1376  DPRINT("Instance: %wZ\n", &DeviceNode->InstancePath);
1377  DPRINT("Service: %wZ\n", &ServiceName);
1378 
1379  ServiceKeyName.MaximumLength = ServicesKeyPath.Length + ServiceName.Length + sizeof(UNICODE_NULL);
1380  ServiceKeyName.Length = 0;
1381  ServiceKeyName.Buffer = ExAllocatePool(PagedPool, ServiceKeyName.MaximumLength);
1382  if (ServiceKeyName.Buffer == NULL)
1383  {
1384  DPRINT1("No ServiceKeyName.Buffer!\n");
1386  }
1387 
1388  RtlAppendUnicodeStringToString(&ServiceKeyName, &ServicesKeyPath);
1389  RtlAppendUnicodeStringToString(&ServiceKeyName, &ServiceName);
1390 
1391  DPRINT("ServiceKeyName: %wZ\n", &ServiceKeyName);
1392 
1393  Status = IopOpenRegistryKeyEx(&ServiceKey, NULL, &ServiceKeyName, KEY_CREATE_SUB_KEY);
1394  if (!NT_SUCCESS(Status))
1395  {
1396  goto done;
1397  }
1398 
1400  &ServiceName,
1401  &DeviceNode->ServiceName);
1402  if (!NT_SUCCESS(Status))
1403  {
1404  goto done;
1405  }
1406 
1407  RtlInitUnicodeString(&EnumKeyName, L"Enum");
1408  Status = IopCreateRegistryKeyEx(&ServiceEnumKey,
1409  ServiceKey,
1410  &EnumKeyName,
1411  KEY_SET_VALUE,
1413  &Disposition);
1414  if (NT_SUCCESS(Status))
1415  {
1417  {
1418  /* Read the NextInstance value */
1419  Status = IopGetRegistryValue(ServiceEnumKey,
1420  L"Count",
1421  &KeyValueInformation);
1422  if (!NT_SUCCESS(Status))
1423  goto done;
1424 
1425  if ((KeyValueInformation->Type == REG_DWORD) &&
1426  (KeyValueInformation->DataLength))
1427  {
1428  /* Read it */
1429  Count = *(PULONG)((ULONG_PTR)KeyValueInformation +
1430  KeyValueInformation->DataOffset);
1431  }
1432 
1433  ExFreePool(KeyValueInformation);
1434  KeyValueInformation = NULL;
1435 
1436  /* Read the NextInstance value */
1437  Status = IopGetRegistryValue(ServiceEnumKey,
1438  L"NextInstance",
1439  &KeyValueInformation);
1440  if (!NT_SUCCESS(Status))
1441  goto done;
1442 
1443  if ((KeyValueInformation->Type == REG_DWORD) &&
1444  (KeyValueInformation->DataLength))
1445  {
1446  NextInstance = *(PULONG)((ULONG_PTR)KeyValueInformation +
1447  KeyValueInformation->DataOffset);
1448  }
1449 
1450  ExFreePool(KeyValueInformation);
1451  KeyValueInformation = NULL;
1452  }
1453 
1454  /* Set the instance path */
1455  swprintf(ValueBuffer, L"%lu", NextInstance);
1456  RtlInitUnicodeString(&ValueName, ValueBuffer);
1457  Status = ZwSetValueKey(ServiceEnumKey,
1458  &ValueName,
1459  0,
1460  REG_SZ,
1461  DeviceNode->InstancePath.Buffer,
1462  DeviceNode->InstancePath.MaximumLength);
1463  if (!NT_SUCCESS(Status))
1464  goto done;
1465 
1466  /* Increment Count and NextInstance */
1467  Count++;
1468  NextInstance++;
1469 
1470  /* Set the new Count value */
1471  RtlInitUnicodeString(&ValueName, L"Count");
1472  Status = ZwSetValueKey(ServiceEnumKey,
1473  &ValueName,
1474  0,
1475  REG_DWORD,
1476  &Count,
1477  sizeof(Count));
1478  if (!NT_SUCCESS(Status))
1479  goto done;
1480 
1481  /* Set the new NextInstance value */
1482  RtlInitUnicodeString(&ValueName, L"NextInstance");
1483  Status = ZwSetValueKey(ServiceEnumKey,
1484  &ValueName,
1485  0,
1486  REG_DWORD,
1487  &NextInstance,
1488  sizeof(NextInstance));
1489  }
1490 
1491 done:
1492  if (ServiceEnumKey != NULL)
1493  ZwClose(ServiceEnumKey);
1494 
1495  if (ServiceKey != NULL)
1496  ZwClose(ServiceKey);
1497 
1498  ExFreePool(ServiceKeyName.Buffer);
1499  ExFreePool(kvInfo2);
1500 
1501  return Status;
1502 }
#define STATUS_INSUFFICIENT_RESOURCES
Definition: udferr_usr.h:158
#define KEY_SET_VALUE
Definition: nt_native.h:1017
USHORT MaximumLength
Definition: env_spec_w32.h:370
NTSYSAPI NTSTATUS NTAPI ZwClose(_In_ HANDLE Handle)
#define RTL_DUPLICATE_UNICODE_STRING_ALLOCATE_NULL_STRING
Definition: green.h:16
LONG NTSTATUS
Definition: precomp.h:26
#define REG_OPENED_EXISTING_KEY
Definition: nt_native.h:1085
#define swprintf
Definition: precomp.h:40
_In_ ACCESS_MASK _In_ POBJECT_ATTRIBUTES _Reserved_ ULONG _In_opt_ PUNICODE_STRING _In_ ULONG _Out_opt_ PULONG Disposition
Definition: cmfuncs.h:50
uint32_t ULONG_PTR
Definition: typedefs.h:65
NTSTATUS NTAPI IopCreateRegistryKeyEx(OUT PHANDLE Handle, IN HANDLE BaseHandle OPTIONAL, IN PUNICODE_STRING KeyName, IN ACCESS_MASK DesiredAccess, IN ULONG CreateOptions, OUT PULONG Disposition OPTIONAL)
#define UNICODE_NULL
void * PVOID
Definition: retypes.h:9
Status
Definition: gdiplustypes.h:24
int Count
Definition: noreturn.cpp:7
LPTSTR ServiceName
Definition: ServiceMain.c:15
__wchar_t WCHAR
Definition: xmlstorage.h:180
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
NTSYSAPI NTSTATUS WINAPI RtlDuplicateUnicodeString(int, const UNICODE_STRING *, UNICODE_STRING *)
Definition: Node.h:9
#define STATUS_UNSUCCESSFUL
Definition: udferr_usr.h:132
_Must_inspect_result_ _In_ WDFKEY _In_ PCUNICODE_STRING ValueName
Definition: wdfregistry.h:240
static const WCHAR L[]
Definition: oid.c:1250
#define ExAllocatePool(type, size)
Definition: fbtusb.h:44
NTSTATUS NTAPI IopGetRegistryValue(IN HANDLE Handle, IN PWSTR ValueName, OUT PKEY_VALUE_FULL_INFORMATION *Information)
Definition: pnpmgr.c:1606
NTSTATUS NTAPI IopOpenRegistryKeyEx(PHANDLE KeyHandle, HANDLE ParentKey, PUNICODE_STRING Name, ACCESS_MASK DesiredAccess)
Definition: pnpmgr.c:1455
NTSYSAPI NTSTATUS NTAPI RtlAppendUnicodeStringToString(PUNICODE_STRING Destination, PUNICODE_STRING Source)
unsigned int * PULONG
Definition: retypes.h:1
#define NULL
Definition: types.h:112
#define DPRINT1
Definition: precomp.h:8
unsigned int ULONG
Definition: retypes.h:1
NTSYSAPI VOID NTAPI RtlInitUnicodeString(PUNICODE_STRING DestinationString, PCWSTR SourceString)
#define STATUS_SUCCESS
Definition: shellext.h:65
#define REG_OPTION_VOLATILE
Definition: nt_native.h:1060
#define DPRINT
Definition: sndvol32.h:71
#define REG_DWORD
Definition: sdbapi.c:596
#define KEY_CREATE_SUB_KEY
Definition: nt_native.h:1018
#define ExFreePool(addr)
Definition: env_spec_w32.h:352
#define RTL_CONSTANT_STRING(s)
Definition: tunneltest.c:14
#define REG_SZ
Definition: layer.c:22

Referenced by PiInitializeDevNode().

◆ IopValidateID()

static BOOLEAN IopValidateID ( _In_ PWCHAR  Id,
_In_ BUS_QUERY_ID_TYPE  QueryType 
)
static

Definition at line 124 of file devaction.c.

127 {
128  PWCHAR PtrChar;
129  PWCHAR StringEnd;
130  WCHAR Char;
131  ULONG SeparatorsCount = 0;
132  PWCHAR PtrPrevChar = NULL;
133  ULONG MaxSeparators;
134  BOOLEAN IsMultiSz;
135 
136  PAGED_CODE();
137 
138  switch (QueryType)
139  {
140  case BusQueryDeviceID:
141  MaxSeparators = MAX_SEPARATORS_DEVICEID;
142  IsMultiSz = FALSE;
143  break;
144  case BusQueryInstanceID:
145  MaxSeparators = MAX_SEPARATORS_INSTANCEID;
146  IsMultiSz = FALSE;
147  break;
148 
149  case BusQueryHardwareIDs:
151  MaxSeparators = MAX_SEPARATORS_DEVICEID;
152  IsMultiSz = TRUE;
153  break;
154 
155  default:
156  DPRINT1("IopValidateID: Not handled QueryType - %x\n", QueryType);
157  return FALSE;
158  }
159 
160  StringEnd = Id + MAX_DEVICE_ID_LEN;
161 
162  for (PtrChar = Id; PtrChar < StringEnd; PtrChar++)
163  {
164  Char = *PtrChar;
165 
166  if (Char == UNICODE_NULL)
167  {
168  if (!IsMultiSz || (PtrPrevChar && PtrChar == PtrPrevChar + 1))
169  {
170  if (MaxSeparators == SeparatorsCount || IsMultiSz)
171  {
172  return TRUE;
173  }
174 
175  DPRINT1("IopValidateID: SeparatorsCount - %lu, MaxSeparators - %lu\n",
176  SeparatorsCount, MaxSeparators);
177  goto ErrorExit;
178  }
179 
180  StringEnd = PtrChar + MAX_DEVICE_ID_LEN + 1;
181  PtrPrevChar = PtrChar;
182  SeparatorsCount = 0;
183  }
184  else if (Char < ' ' || Char > 0x7F || Char == ',')
185  {
186  DPRINT1("IopValidateID: Invalid character - %04X\n", Char);
187  goto ErrorExit;
188  }
189  else if (Char == ' ')
190  {
191  *PtrChar = '_';
192  }
193  else if (Char == '\\')
194  {
195  SeparatorsCount++;
196 
197  if (SeparatorsCount > MaxSeparators)
198  {
199  DPRINT1("IopValidateID: SeparatorsCount - %lu, MaxSeparators - %lu\n",
200  SeparatorsCount, MaxSeparators);
201  goto ErrorExit;
202  }
203  }
204  }
205 
206  DPRINT1("IopValidateID: Not terminated ID\n");
207 
208 ErrorExit:
209  // FIXME logging
210  return FALSE;
211 }
#define TRUE
Definition: types.h:120
uint16_t * PWCHAR
Definition: typedefs.h:56
DWORD Id
#define FALSE
Definition: types.h:117
#define UNICODE_NULL
unsigned char BOOLEAN
__wchar_t WCHAR
Definition: xmlstorage.h:180
_Must_inspect_result_ _In_ KTMOBJECT_TYPE QueryType
Definition: nttmapi.h:404
#define MAX_DEVICE_ID_LEN
Definition: devaction.c:40
#define MAX_SEPARATORS_INSTANCEID
Definition: devaction.c:41
static VOID ErrorExit(LPTSTR lpszMessage)
Definition: telnetd.c:647
#define NULL
Definition: types.h:112
#define DPRINT1
Definition: precomp.h:8
unsigned int ULONG
Definition: retypes.h:1
#define MAX_SEPARATORS_DEVICEID
Definition: devaction.c:42
#define PAGED_CODE()

Referenced by IopCreateDeviceInstancePath(), IopQueryCompatibleIds(), and IopQueryHardwareIds().

◆ IoRequestDeviceEject()

VOID NTAPI IoRequestDeviceEject ( IN PDEVICE_OBJECT  PhysicalDeviceObject)

Definition at line 2232 of file devaction.c.

2233 {
2235  PDEVICE_RELATIONS DeviceRelations;
2239  NTSTATUS Status;
2240 
2241  IopQueueTargetDeviceEvent(&GUID_DEVICE_KERNEL_INITIATED_EJECT,
2242  &DeviceNode->InstancePath);
2243 
2245  {
2246  goto cleanup;
2247  }
2248 
2249  Stack.Parameters.QueryDeviceRelations.Type = EjectionRelations;
2250 
2252  &IoStatusBlock,
2254  &Stack);
2255  if (!NT_SUCCESS(Status))
2256  {
2257  DPRINT("IopInitiatePnpIrp() failed with status 0x%08lx\n", Status);
2258  DeviceRelations = NULL;
2259  }
2260  else
2261  {
2262  DeviceRelations = (PDEVICE_RELATIONS)IoStatusBlock.Information;
2263  }
2264 
2265  if (DeviceRelations)
2266  {
2267  Status = IopQueryRemoveDeviceRelations(DeviceRelations, FALSE);
2268  if (!NT_SUCCESS(Status))
2269  goto cleanup;
2270  }
2271 
2273  if (!NT_SUCCESS(Status))
2274  {
2275  if (DeviceRelations)
2276  IopCancelRemoveDeviceRelations(DeviceRelations);
2277  goto cleanup;
2278  }
2279 
2281  {
2282  if (DeviceRelations)
2283  IopCancelRemoveDeviceRelations(DeviceRelations);
2285  goto cleanup;
2286  }
2287 
2288  if (DeviceRelations)
2289  IopSendRemoveDeviceRelations(DeviceRelations);
2291 
2293  if (Capabilities.EjectSupported)
2294  {
2296  {
2297  goto cleanup;
2298  }
2299  }
2300  else
2301  {
2302  // DeviceNode->Flags |= DNF_DISABLED;
2303  }
2304 
2305  IopQueueTargetDeviceEvent(&GUID_DEVICE_EJECT,
2306  &DeviceNode->InstancePath);
2307 
2308  return;
2309 
2310 cleanup:
2311  IopQueueTargetDeviceEvent(&GUID_DEVICE_EJECT_VETOED,
2312  &DeviceNode->InstancePath);
2313 }
static NTSTATUS IopQueryRemoveChildDevices(PDEVICE_NODE ParentDeviceNode, BOOLEAN Force)
Definition: devaction.c:1821
static VOID IopCancelRemoveChildDevices(PDEVICE_NODE ParentDeviceNode)
Definition: devaction.c:1722
#define CM_PROB_HELD_FOR_EJECT
Definition: cfg.h:77
LONG NTSTATUS
Definition: precomp.h:26
DEVICE_CAPABILITIES
Definition: iotypes.h:965
PDEVICE_OBJECT PhysicalDeviceObject
Definition: btrfs_drv.h:1155
_In_ WDFREQUEST _In_ PIO_STACK_LOCATION Stack
Definition: wdfrequest.h:636
#define FALSE
Definition: types.h:117
_Must_inspect_result_ typedef _Out_ PHIDP_CAPS Capabilities
Definition: hidclass.h:103
NTSTATUS NTAPI IopQueryDeviceCapabilities(PDEVICE_NODE DeviceNode, PDEVICE_CAPABILITIES DeviceCaps)
Definition: devaction.c:853
struct _DEVICE_RELATIONS * PDEVICE_RELATIONS
Status
Definition: gdiplustypes.h:24
NTSTATUS IopQueueTargetDeviceEvent(const GUID *Guid, PUNICODE_STRING DeviceIds)
Definition: plugplay.c:43
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
static VOID IopSendRemoveChildDevices(PDEVICE_NODE ParentDeviceNode)
Definition: devaction.c:1678
Definition: Node.h:9
static NTSTATUS IopPrepareDeviceForRemoval(PDEVICE_OBJECT DeviceObject, BOOLEAN Force)
static VOID IopSendRemoveDeviceRelations(PDEVICE_RELATIONS DeviceRelations)
Definition: devaction.c:1661
static NTSTATUS NTAPI IopSendEject(IN PDEVICE_OBJECT DeviceObject)
Definition: devaction.c:2215
static NTSTATUS IopQueryRemoveDeviceRelations(PDEVICE_RELATIONS DeviceRelations, BOOLEAN Force)
Definition: devaction.c:1875
static OUT PIO_STATUS_BLOCK IoStatusBlock
Definition: pipe.c:75
#define NULL
Definition: types.h:112
#define IRP_MN_QUERY_DEVICE_RELATIONS
static VOID IopCancelRemoveDeviceRelations(PDEVICE_RELATIONS DeviceRelations)
Definition: devaction.c:1745
char * cleanup(char *str)
Definition: wpickclick.c:99
#define STATUS_SUCCESS
Definition: shellext.h:65
#define DPRINT
Definition: sndvol32.h:71
NTSTATUS NTAPI IopInitiatePnpIrp(IN PDEVICE_OBJECT DeviceObject, IN PIO_STATUS_BLOCK IoStatusBlock, IN UCHAR MinorFunction, IN PIO_STACK_LOCATION Stack)
PDEVICE_NODE FASTCALL IopGetDeviceNode(IN PDEVICE_OBJECT DeviceObject)

◆ PiAttachFilterDrivers()

static NTSTATUS PiAttachFilterDrivers ( PLIST_ENTRY  DriversListHead,
PDEVICE_NODE  DeviceNode,
HANDLE  EnumSubKey,
HANDLE  ClassKey,
BOOLEAN  Lower,
BOOLEAN  LoadDrivers 
)
static

Calls PiAttachFilterDriversCallback for filter drivers (if any)

Definition at line 531 of file devaction.c.

538 {
539  RTL_QUERY_REGISTRY_TABLE QueryTable[2] = { { NULL, 0, NULL, NULL, 0, NULL, 0 }, };
540  ATTACH_FILTER_DRIVERS_CONTEXT routineContext;
542 
543  PAGED_CODE();
544 
545  routineContext.DriversListHead = DriversListHead;
546  routineContext.DeviceNode = DeviceNode;
547 
548  // First add device filters
549  routineContext.DriverType = Lower ? LowerFilter : UpperFilter;
552  .Name = Lower ? L"LowerFilters" : L"UpperFilters",
553  .DefaultType = REG_NONE,
554  .EntryContext = (PVOID)(ULONG_PTR)LoadDrivers
555  };
556 
558  (PWSTR)EnumSubKey,
559  QueryTable,
560  &routineContext,
561  NULL);
562  if (ClassKey == NULL)
563  {
564  return Status;
565  }
566 
567  // Then add device class filters
568  routineContext.DriverType = Lower ? LowerClassFilter : UpperClassFilter;
571  .Name = Lower ? L"LowerFilters" : L"UpperFilters",
572  .DefaultType = REG_NONE,
573  .EntryContext = (PVOID)(ULONG_PTR)LoadDrivers
574  };
575 
577  (PWSTR)ClassKey,
578  QueryTable,
579  &routineContext,
580  NULL);
581  return Status;
582 }
_In_ PCWSTR _Inout_ _At_ QueryTable _Pre_unknown_ PRTL_QUERY_REGISTRY_TABLE QueryTable
Definition: rtlfuncs.h:4155
NTSYSAPI NTSTATUS WINAPI RtlQueryRegistryValues(ULONG, PCWSTR, PRTL_QUERY_REGISTRY_TABLE, PVOID, PVOID)
uint16_t * PWSTR
Definition: typedefs.h:56
LONG NTSTATUS
Definition: precomp.h:26
uint32_t ULONG_PTR
Definition: typedefs.h:65
PRTL_QUERY_REGISTRY_ROUTINE QueryRoutine
Definition: nt_native.h:109
void * PVOID
Definition: retypes.h:9
Status
Definition: gdiplustypes.h:24
static NTSTATUS NTAPI PiAttachFilterDriversCallback(PWSTR ValueName, ULONG ValueType, PVOID ValueData, ULONG ValueLength, PVOID Ctx, PVOID EntryContext)
Loads and/or returns the driver associated with the registry entry if the driver is enabled....
Definition: devaction.c:362
struct _RTL_QUERY_REGISTRY_TABLE RTL_QUERY_REGISTRY_TABLE
Definition: Node.h:9
static const WCHAR L[]
Definition: oid.c:1250
#define RTL_REGISTRY_HANDLE
Definition: nt_native.h:168
#define NULL
Definition: types.h:112
#define REG_NONE
Definition: nt_native.h:1492
ADD_DEV_DRIVER_TYPE DriverType
Definition: devaction.c:84
#define PAGED_CODE()

Referenced by PiCallDriverAddDevice().

◆ PiAttachFilterDriversCallback()

static NTSTATUS NTAPI PiAttachFilterDriversCallback ( PWSTR  ValueName,
ULONG  ValueType,
PVOID  ValueData,
ULONG  ValueLength,
PVOID  Ctx,
PVOID  EntryContext 
)
static

Loads and/or returns the driver associated with the registry entry if the driver is enabled. In case of an error, sets up a corresponding Problem to the DeviceNode.

Definition at line 362 of file devaction.c.

369 {
373  BOOLEAN loadDrivers = (BOOLEAN)(ULONG_PTR)EntryContext;
374 
375  PAGED_CODE();
376 
377  // No filter value present
378  if (ValueType != REG_SZ)
379  return STATUS_SUCCESS;
380 
381  if (ValueLength <= sizeof(WCHAR))
383 
384  // open the service registry key
385  UNICODE_STRING serviceName = { .Length = 0 }, servicesKeyName;
387  RtlInitUnicodeString(&servicesKeyName, ServicesKeyName);
388 
389  HANDLE ccsServicesHandle, serviceHandle = NULL;
390 
391  Status = IopOpenRegistryKeyEx(&ccsServicesHandle, NULL, &servicesKeyName, KEY_READ);
392  if (!NT_SUCCESS(Status))
393  {
394  DPRINT1("Failed to open a registry key for \"%wZ\" (status %x)\n", &serviceName, Status);
395  return Status;
396  }
397 
398  Status = IopOpenRegistryKeyEx(&serviceHandle, ccsServicesHandle, &serviceName, KEY_READ);
399  ZwClose(ccsServicesHandle);
400  if (!NT_SUCCESS(Status))
401  {
402  DPRINT1("Failed to open a registry key for \"%wZ\" (status %x)\n", &serviceName, Status);
403  return Status;
404  }
405 
407  sizeof(*driverEntry),
409 
410  if (!driverEntry)
411  {
412  DPRINT1("Failed to allocate driverEntry for \"%wZ\"\n", &serviceName);
413  ZwClose(serviceHandle);
415  }
416 
417  // check if the driver is disabled
419  SERVICE_LOAD_TYPE startType = DisableLoad;
420 
421  Status = IopGetRegistryValue(serviceHandle, L"Start", &kvInfo);
422  if (NT_SUCCESS(Status))
423  {
424  if (kvInfo->Type == REG_DWORD)
425  {
426  RtlMoveMemory(&startType,
427  (PVOID)((ULONG_PTR)kvInfo + kvInfo->DataOffset),
428  sizeof(startType));
429  }
430 
431  ExFreePool(kvInfo);
432  }
433 
434  // TODO: take into account other start types (like SERVICE_DEMAND_START)
435  if (startType >= DisableLoad)
436  {
437  if (!(context->DeviceNode->Flags & DNF_HAS_PROBLEM))
438  {
440  }
441 
442  DPRINT("Service \"%wZ\" is disabled (start type %u)\n", &serviceName, startType);
444  goto Cleanup;
445  }
446 
447  // check if the driver is already loaded
448  UNICODE_STRING driverName;
449  Status = IopGetDriverNames(serviceHandle, &driverName, NULL);
450  if (!NT_SUCCESS(Status))
451  {
452  DPRINT1("Unable to obtain the driver name for \"%wZ\"\n", &serviceName);
453  goto Cleanup;
454  }
455 
456  // try to open it
457  Status = ObReferenceObjectByName(&driverName,
459  NULL, /* PassedAccessState */
460  0, /* DesiredAccess */
462  KernelMode,
463  NULL, /* ParseContext */
464  (PVOID*)&DriverObject);
465  RtlFreeUnicodeString(&driverName);
466 
467  // the driver was not probably loaded, try to load
468  if (!NT_SUCCESS(Status))
469  {
470  if (loadDrivers)
471  {
472  Status = IopLoadDriver(serviceHandle, &DriverObject);
473  }
474  else
475  {
476  DPRINT("Service \"%wZ\" will not be loaded now\n", &serviceName);
477  // return failure, the driver will be loaded later (in a subsequent call)
479  goto Cleanup;
480  }
481  }
482 
483  if (NT_SUCCESS(Status))
484  {
485  driverEntry->DriverObject = DriverObject;
486  driverEntry->DriverType = context->DriverType;
487  InsertTailList(context->DriversListHead, &driverEntry->ListEntry);
488  ZwClose(serviceHandle);
489  return STATUS_SUCCESS;
490  }
491  else
492  {
493  if (!(context->DeviceNode->Flags & DNF_HAS_PROBLEM))
494  {
495  switch (Status)
496  {
499  break;
502  break;
505  break;
506  default:
508  break;
509  }
510  }
511 
512  DPRINT1("Failed to load driver \"%wZ\" for %wZ (status %x)\n",
513  &serviceName, &context->DeviceNode->InstancePath, Status);
514  }
515 
516 Cleanup:
517  ExFreePoolWithTag(driverEntry, TAG_PNP_DEVACTION);
518  if (serviceHandle)
519  {
520  ZwClose(serviceHandle);
521  }
522  return Status;
523 }
NTSTATUS IopGetDriverNames(_In_ HANDLE ServiceHandle, _Out_ PUNICODE_STRING DriverName, _Out_opt_ PUNICODE_STRING ServiceName)
Definition: driver.c:125
#define STATUS_INSUFFICIENT_RESOURCES
Definition: udferr_usr.h:158
#define DNF_HAS_PROBLEM
Definition: iotypes.h:183
#define OBJ_CASE_INSENSITIVE
Definition: winternl.h:228
Definition: http.c:7251
#define KEY_READ
Definition: nt_native.h:1023
NTSYSAPI NTSTATUS NTAPI ZwClose(_In_ HANDLE Handle)
#define CM_PROB_OUT_OF_MEMORY
Definition: cfg.h:33
enum _CM_SERVICE_LOAD_TYPE SERVICE_LOAD_TYPE
LONG NTSTATUS
Definition: precomp.h:26
#define STATUS_FAILED_DRIVER_ENTRY
Definition: ntstatus.h:911
POBJECT_TYPE IoDriverObjectType
Definition: driver.c:33
#define CM_PROB_FAILED_DRIVER_ENTRY
Definition: cfg.h:67
#define InsertTailList(ListHead, Entry)
_Must_inspect_result_ _In_ WDFKEY _In_ PCUNICODE_STRING _In_ ULONG _Out_opt_ PULONG _Out_opt_ PULONG ValueType
Definition: wdfregistry.h:279
#define OBJ_KERNEL_HANDLE
Definition: winternl.h:231
#define OBJ_OPENIF
Definition: winternl.h:229
#define RtlMoveMemory(Destination, Source, Length)
Definition: typedefs.h:264
uint32_t ULONG_PTR
Definition: typedefs.h:65
NTSTATUS IopLoadDriver(_In_ HANDLE ServiceHandle, _Out_ PDRIVER_OBJECT *DriverObject)
Definition: driver.c:1911
LIST_ENTRY ListEntry
Definition: devaction.c:77
unsigned char BOOLEAN
#define TAG_PNP_DEVACTION
Definition: devaction.c:53
_In_ PCWSTR _Inout_ _At_ QueryTable EntryContext
Definition: rtlfuncs.h:4155
ADD_DEV_DRIVER_TYPE DriverType
Definition: devaction.c:79
_Must_inspect_result_ _In_ PDRIVER_OBJECT DriverObject
Definition: wdfdriver.h:213
#define STATUS_ILL_FORMED_SERVICE_ENTRY
Definition: ntstatus.h:588
Status
Definition: gdiplustypes.h:24
char serviceName[]
Definition: tftpd.cpp:34
VOID PiSetDevNodeProblem(_In_ PDEVICE_NODE DeviceNode, _In_ UINT32 Problem)
Definition: devnode.c:132
PDRIVER_OBJECT DriverObject
Definition: devaction.c:78
__wchar_t WCHAR
Definition: xmlstorage.h:180
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
#define CM_PROB_DISABLED_SERVICE
Definition: cfg.h:62
_In_ GUID _In_ PVOID ValueData
Definition: hubbusif.h:311
NTSYSAPI VOID NTAPI RtlFreeUnicodeString(PUNICODE_STRING UnicodeString)
#define STATUS_UNSUCCESSFUL
Definition: udferr_usr.h:132
#define ExAllocatePoolWithTag(hernya, size, tag)
Definition: env_spec_w32.h:350
static const WCHAR L[]
Definition: oid.c:1250
#define CM_PROB_DRIVER_FAILED_LOAD
Definition: cfg.h:69
static const WCHAR Cleanup[]
Definition: register.c:80
NTSTATUS NTAPI IopGetRegistryValue(IN HANDLE Handle, IN PWSTR ValueName, OUT PKEY_VALUE_FULL_INFORMATION *Information)
Definition: pnpmgr.c:1606
#define STATUS_OBJECT_NAME_NOT_FOUND
Definition: udferr_usr.h:149
NTSTATUS NTAPI IopOpenRegistryKeyEx(PHANDLE KeyHandle, HANDLE ParentKey, PUNICODE_STRING Name, ACCESS_MASK DesiredAccess)
Definition: pnpmgr.c:1455
#define NULL
Definition: types.h:112
#define DPRINT1
Definition: precomp.h:8
#define BOOLEAN
Definition: pedump.c:73
#define CM_PROB_DRIVER_SERVICE_KEY_INVALID
Definition: cfg.h:70
static const WCHAR ServicesKeyName[]
Definition: devaction.c:51
NTSYSAPI VOID NTAPI RtlInitUnicodeString(PUNICODE_STRING DestinationString, PCWSTR SourceString)
#define STATUS_SUCCESS
Definition: shellext.h:65
#define DPRINT
Definition: sndvol32.h:71
#define REG_DWORD
Definition: sdbapi.c:596
#define ExFreePoolWithTag(_P, _T)
Definition: module.h:1099
NTSTATUS NTAPI ObReferenceObjectByName(IN PUNICODE_STRING ObjectPath, IN ULONG Attributes, IN PACCESS_STATE PassedAccessState, IN ACCESS_MASK DesiredAccess, IN POBJECT_TYPE ObjectType, IN KPROCESSOR_MODE AccessMode, IN OUT PVOID ParseContext, OUT PVOID *ObjectPtr)
Definition: obref.c:409
#define ExFreePool(addr)
Definition: env_spec_w32.h:352
#define PAGED_CODE()
#define REG_SZ
Definition: layer.c:22
_Must_inspect_result_ _In_ WDFKEY _In_ PCUNICODE_STRING _In_ ULONG ValueLength
Definition: wdfregistry.h:271

Referenced by PiAttachFilterDrivers(), and PiCallDriverAddDevice().

◆ PiCallDriverAddDevice()

static NTSTATUS PiCallDriverAddDevice ( _In_ PDEVICE_NODE  DeviceNode,
_In_ BOOLEAN  LoadDrivers 
)
static

Loads all drivers for a device node (actual service and filters) and calls their AddDevice routine.

Parameters
[in]DeviceNodeThe device node
[in]LoadDriversWhether to load drivers if they are not loaded yet (used when storage subsystem is not yet initialized)

Definition at line 594 of file devaction.c.

597 {
599  HANDLE EnumRootKey, SubKey;
600  HANDLE ClassKey = NULL;
602  static UNICODE_STRING ccsControlClass =
603  RTL_CONSTANT_STRING(L"\\Registry\\Machine\\System\\CurrentControlSet\\Control\\Class");
605 
606  PAGED_CODE();
607 
608  // open the enumeration root key
609  Status = IopOpenRegistryKeyEx(&EnumRootKey, NULL, &EnumRoot, KEY_READ);
610  if (!NT_SUCCESS(Status))
611  {
612  DPRINT1("IopOpenRegistryKeyEx() failed for \"%wZ\" (status %x)\n", &EnumRoot, Status);
613  return Status;
614  }
615 
616  // open an instance subkey
617  Status = IopOpenRegistryKeyEx(&SubKey, EnumRootKey, &DeviceNode->InstancePath, KEY_READ);
618  ZwClose(EnumRootKey);
619  if (!NT_SUCCESS(Status))
620  {
621  DPRINT1("Failed to open a devnode instance key for \"%wZ\" (status %x)\n",
622  &DeviceNode->InstancePath, Status);
623  return Status;
624  }
625 
626  // try to get the class GUID of an instance and its registry key
627  Status = IopGetRegistryValue(SubKey, REGSTR_VAL_CLASSGUID, &kvInfo);
628  if (NT_SUCCESS(Status))
629  {
630  if (kvInfo->Type == REG_SZ && kvInfo->DataLength > sizeof(WCHAR))
631  {
632  UNICODE_STRING classGUID = {
633  .MaximumLength = kvInfo->DataLength,
634  .Length = kvInfo->DataLength - sizeof(UNICODE_NULL),
635  .Buffer = (PVOID)((ULONG_PTR)kvInfo + kvInfo->DataOffset)
636  };
637  HANDLE ccsControlHandle;
638 
639  Status = IopOpenRegistryKeyEx(&ccsControlHandle, NULL, &ccsControlClass, KEY_READ);
640  if (!NT_SUCCESS(Status))
641  {
642  DPRINT1("IopOpenRegistryKeyEx() failed for \"%wZ\" (status %x)\n",
643  &ccsControlClass, Status);
644  }
645  else
646  {
647  // open the CCS\Control\Class<ClassGUID> key
648  Status = IopOpenRegistryKeyEx(&ClassKey, ccsControlHandle, &classGUID, KEY_READ);
649  ZwClose(ccsControlHandle);
650  if (!NT_SUCCESS(Status))
651  {
652  DPRINT1("Failed to open class key \"%wZ\" (status %x)\n", &classGUID, Status);
653  }
654  }
655 
656  if (ClassKey)
657  {
658  // Check the Properties key of a class too
659  // Windows fills some device properties from this key (which is protected)
660  // TODO: add the device properties from this key
661 
663  HANDLE propertiesHandle;
664 
665  Status = IopOpenRegistryKeyEx(&propertiesHandle, ClassKey, &properties, KEY_READ);
666  if (!NT_SUCCESS(Status))
667  {
668  DPRINT("Properties key failed to open for \"%wZ\" (status %x)\n",
669  &classGUID, Status);
670  }
671  else
672  {
673  ZwClose(propertiesHandle);
674  }
675  }
676  }
677 
678  ExFreePool(kvInfo);
679  }
680 
681  // the driver loading order:
682  // 1. LowerFilters
683  // 2. LowerClassFilters
684  // 3. Device driver (only one service!)
685  // 4. UpperFilters
686  // 5. UpperClassFilters
687 
688  LIST_ENTRY drvListHead;
689  InitializeListHead(&drvListHead);
690 
691  // lower (class) filters
692  Status = PiAttachFilterDrivers(&drvListHead, DeviceNode, SubKey, ClassKey, TRUE, LoadDrivers);
693  if (!NT_SUCCESS(Status))
694  {
695  goto Cleanup;
696  }
697 
698  ATTACH_FILTER_DRIVERS_CONTEXT routineContext = {
699  .DriversListHead = &drvListHead,
700  .DriverType = DeviceDriver,
701  .DeviceNode = DeviceNode
702  };
703 
704  RTL_QUERY_REGISTRY_TABLE queryTable[2] = {{
706  .Name = L"Service",
708  .DefaultType = REG_SZ, // REG_MULTI_SZ is not allowed here
709  .DefaultData = L"",
710  .EntryContext = (PVOID)(ULONG_PTR)LoadDrivers
711  },};
712 
713  // device driver
715  (PWSTR)SubKey,
716  queryTable,
717  &routineContext,
718  NULL);
719  if (NT_SUCCESS(Status))
720  {
721  // do nothing
722  }
723  // if a driver is not found, but a device allows raw access -> proceed
724  else if (Status == STATUS_OBJECT_NAME_NOT_FOUND &&
725  (DeviceNode->CapabilityFlags & 0x00000040)) // CM_DEVCAP_RAWDEVICEOK
726  {
727  // add a dummy entry to the drivers list (need for later processing)
728  PADD_DEV_DRIVERS_LIST driverEntry = ExAllocatePoolZero(PagedPool,
729  sizeof(*driverEntry),
731  driverEntry->DriverType = DeviceDriver;
732  InsertTailList(&drvListHead, &driverEntry->ListEntry);
733  DPRINT("No service for \"%wZ\" (RawDeviceOK)\n", &DeviceNode->InstancePath);
734  }
735  else
736  {
738  {
740  }
741  DPRINT("No service for \"%wZ\" (loadDrv: %u)\n", &DeviceNode->InstancePath, LoadDrivers);
742  goto Cleanup;
743  }
744 
745  // upper (class) filters
746  Status = PiAttachFilterDrivers(&drvListHead, DeviceNode, SubKey, ClassKey, FALSE, LoadDrivers);
747  if (!NT_SUCCESS(Status))
748  {
749  goto Cleanup;
750  }
751 
752  // finally loop through the stack and call AddDevice for every driver
753  for (PLIST_ENTRY listEntry = drvListHead.Flink;
754  listEntry != &drvListHead;
755  listEntry = listEntry->Flink)
756  {
757  PADD_DEV_DRIVERS_LIST driverEntry;
758  driverEntry = CONTAINING_RECORD(listEntry, ADD_DEV_DRIVERS_LIST, ListEntry);
759  PDRIVER_OBJECT driverObject = driverEntry->DriverObject;
760 
761  // FIXME: ReactOS is not quite ready for this assert
762  // (legacy drivers should not have AddDevice routine)
763  // ASSERT(!(DriverObject->Flags & DRVO_LEGACY_DRIVER));
764 
765  if (driverObject && driverObject->DriverExtension->AddDevice)
766  {
767  Status = driverObject->DriverExtension->AddDevice(driverEntry->DriverObject,
768  DeviceNode->PhysicalDeviceObject);
769  }
770  else if (driverObject == NULL)
771  {
772  // valid only for DeviceDriver
773  ASSERT(driverEntry->DriverType == DeviceDriver);
774  ASSERT(DeviceNode->CapabilityFlags & 0x00000040); // CM_DEVCAP_RAWDEVICEOK
776  }
777  else
778  {
779  // HACK: the driver doesn't have a AddDevice routine. We shouldn't be here,
780  // but ReactOS' PnP stack is not that correct yet
781  DeviceNode->Flags |= DNF_LEGACY_DRIVER;
783  }
784 
785  // for filter drivers we don't care about the AddDevice result
786  if (driverEntry->DriverType == DeviceDriver)
787  {
788  if (NT_SUCCESS(Status))
789  {
790  PDEVICE_OBJECT fdo = IoGetAttachedDeviceReference(DeviceNode->PhysicalDeviceObject);
791 
792  // HACK: Check if we have a ACPI device (needed for power management)
793  if (fdo->DeviceType == FILE_DEVICE_ACPI)
794  {
795  static BOOLEAN SystemPowerDeviceNodeCreated = FALSE;
796 
797  // There can be only one system power device
798  if (!SystemPowerDeviceNodeCreated)
799  {
802  SystemPowerDeviceNodeCreated = TRUE;
803  }
804  }
805 
806  ObDereferenceObject(fdo);
808  }
809  else
810  {
811  // lower filters (if already started) will be removed upon this request
814  break;
815  }
816  }
817 
818 #if DBG
819  PDEVICE_OBJECT attachedDO = IoGetAttachedDevice(DeviceNode->PhysicalDeviceObject);
820  if (attachedDO->Flags & DO_DEVICE_INITIALIZING)
821  {
822  DPRINT1("DO_DEVICE_INITIALIZING is not cleared on a device 0x%p!\n", attachedDO);
823  }
824 #endif
825  }
826 
827 Cleanup:
828  while (!IsListEmpty(&drvListHead))
829  {
830  PLIST_ENTRY listEntry = RemoveHeadList(&drvListHead);
831  PADD_DEV_DRIVERS_LIST driverEntry;
832  driverEntry = CONTAINING_RECORD(listEntry, ADD_DEV_DRIVERS_LIST, ListEntry);
833 
834  // drivers which don't have any devices (in case of failure) will be cleaned up
835  if (driverEntry->DriverObject)
836  {
837  ObDereferenceObject(driverEntry->DriverObject);
838  }
839  ExFreePoolWithTag(driverEntry, TAG_PNP_DEVACTION);
840  }
841 
842  ZwClose(SubKey);
843  if (ClassKey != NULL)
844  {
845  ZwClose(ClassKey);
846  }
847 
848  return Status;
849 }
#define DO_DEVICE_INITIALIZING
Definition: env_spec_w32.h:399
PDEVICE_OBJECT PhysicalDeviceObject
Definition: iotypes.h:850
#define DNF_HAS_PROBLEM
Definition: iotypes.h:183
PNP_DEVNODE_STATE PiSetDevNodeState(_In_ PDEVICE_NODE DeviceNode, _In_ PNP_DEVNODE_STATE NewState)
Definition: devnode.c:108
NTSYSAPI NTSTATUS WINAPI RtlQueryRegistryValues(ULONG, PCWSTR, PRTL_QUERY_REGISTRY_TABLE, PVOID, PVOID)
USHORT MaximumLength
Definition: env_spec_w32.h:370
#define KEY_READ
Definition: nt_native.h:1023
#define TRUE
Definition: types.h:120
NTSYSAPI NTSTATUS NTAPI ZwClose(_In_ HANDLE Handle)
uint16_t * PWSTR
Definition: typedefs.h:56
LONG NTSTATUS
Definition: precomp.h:26
#define InsertTailList(ListHead, Entry)
_Must_inspect_result_ FORCEINLINE BOOLEAN IsListEmpty(_In_ const LIST_ENTRY *ListHead)
Definition: rtlfuncs.h:57
uint32_t ULONG_PTR
Definition: typedefs.h:65
PRTL_QUERY_REGISTRY_ROUTINE QueryRoutine
Definition: nt_native.h:109
#define FALSE
Definition: types.h:117
#define UNICODE_NULL
LIST_ENTRY ListEntry
Definition: devaction.c:77
PDRIVER_EXTENSION DriverExtension
Definition: iotypes.h:2282
unsigned char BOOLEAN
#define TAG_PNP_DEVACTION
Definition: devaction.c:53
FORCEINLINE PLIST_ENTRY RemoveHeadList(_Inout_ PLIST_ENTRY ListHead)
Definition: rtlfuncs.h:128
Definition: bufpool.h:45
void * PVOID
Definition: retypes.h:9
ADD_DEV_DRIVER_TYPE DriverType
Definition: devaction.c:79
PFLT_MESSAGE_WAITER_QUEUE CONTAINING_RECORD(Csq, DEVICE_EXTENSION, IrpQueue)) -> WaiterQ.mLock) _IRQL_raises_(DISPATCH_LEVEL) VOID NTAPI FltpAcquireMessageWaiterLock(_In_ PIO_CSQ Csq, _Out_ PKIRQL Irql)
Definition: Messaging.c:560
PDEVICE_OBJECT NTAPI IoGetAttachedDeviceReference(PDEVICE_OBJECT DeviceObject)
Definition: device.c:1406
Status
Definition: gdiplustypes.h:24
VOID PiSetDevNodeProblem(_In_ PDEVICE_NODE DeviceNode, _In_ UINT32 Problem)
Definition: devnode.c:132
struct _LIST_ENTRY * Flink
Definition: typedefs.h:121
#define STATUS_OBJECT_TYPE_MISMATCH
Definition: ntstatus.h:273
PDRIVER_OBJECT DriverObject
Definition: devaction.c:78
#define ASSERT(a)
Definition: mode.c:44
__wchar_t WCHAR
Definition: xmlstorage.h:180
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
#define ENUM_ROOT
Definition: io.h:53
#define ObDereferenceObject
Definition: obfuncs.h:203
static NTSTATUS PiAttachFilterDrivers(PLIST_ENTRY DriversListHead, PDEVICE_NODE DeviceNode, HANDLE EnumSubKey, HANDLE ClassKey, BOOLEAN Lower, BOOLEAN LoadDrivers)
Calls PiAttachFilterDriversCallback for filter drivers (if any)
Definition: devaction.c:531
#define REGSTR_VAL_CLASSGUID
Definition: regstr.h:422
static NTSTATUS NTAPI PiAttachFilterDriversCallback(PWSTR ValueName, ULONG ValueType, PVOID ValueData, ULONG ValueLength, PVOID Ctx, PVOID EntryContext)
Loads and/or returns the driver associated with the registry entry if the driver is enabled....
Definition: devaction.c:362
PDEVICE_NODE PopSystemPowerDeviceNode
Definition: power.c:25
Definition: Node.h:9
#define STATUS_UNSUCCESSFUL
Definition: udferr_usr.h:132
static const WCHAR L[]
Definition: oid.c:1250
#define RTL_REGISTRY_HANDLE
Definition: nt_native.h:168
#define DNF_LEGACY_DRIVER
Definition: iotypes.h:182
Definition: typedefs.h:119
static const WCHAR Cleanup[]
Definition: register.c:80
#define REGSTR_KEY_DEVICE_PROPERTIES
Definition: regstr.h:752
PDRIVER_ADD_DEVICE AddDevice
Definition: iotypes.h:2220
NTSTATUS NTAPI IopGetRegistryValue(IN HANDLE Handle, IN PWSTR ValueName, OUT PKEY_VALUE_FULL_INFORMATION *Information)
Definition: pnpmgr.c:1606
#define STATUS_OBJECT_NAME_NOT_FOUND
Definition: udferr_usr.h:149
NTSTATUS NTAPI IopOpenRegistryKeyEx(PHANDLE KeyHandle, HANDLE ParentKey, PUNICODE_STRING Name, ACCESS_MASK DesiredAccess)
Definition: pnpmgr.c:1455
#define InitializeListHead(ListHead)
Definition: env_spec_w32.h:944
PDEVICE_OBJECT NTAPI IoGetAttachedDevice(PDEVICE_OBJECT DeviceObject)
Definition: device.c:1385
#define NULL
Definition: types.h:112
#define DPRINT1
Definition: precomp.h:8
#define ObReferenceObject
Definition: obfuncs.h:204
#define FILE_DEVICE_ACPI
Definition: winioctl.h:156
#define ULONG_PTR
Definition: config.h:101
#define STATUS_SUCCESS
Definition: shellext.h:65
#define CM_PROB_FAILED_ADD
Definition: cfg.h:61
#define DPRINT
Definition: sndvol32.h:71
#define RTL_QUERY_REGISTRY_REQUIRED
Definition: nt_native.h:132
#define ExFreePoolWithTag(_P, _T)
Definition: module.h:1099
#define CM_PROB_REGISTRY
Definition: cfg.h:49
#define ExFreePool(addr)
Definition: env_spec_w32.h:352
#define PAGED_CODE()
#define RTL_CONSTANT_STRING(s)
Definition: tunneltest.c:14
#define REG_SZ
Definition: layer.c:22

Referenced by PiDevNodeStateMachine(), and PipDeviceActionWorker().

◆ PiDevNodeStateMachine()

static VOID PiDevNodeStateMachine ( _In_ PDEVICE_NODE  RootNode)
static

Definition at line 2317 of file devaction.c.

2319 {
2320  NTSTATUS status;
2321  BOOLEAN doProcessAgain;
2322  PDEVICE_NODE currentNode = RootNode;
2323  PDEVICE_OBJECT referencedObject;
2324 
2325  do
2326  {
2327  doProcessAgain = FALSE;
2328 
2329  // The device can be removed during processing, but we still need its Parent and Sibling
2330  // links to continue the tree traversal. So keep the link till the and of a cycle
2331  referencedObject = currentNode->PhysicalDeviceObject;
2332  ObReferenceObject(referencedObject);
2333 
2334  // Devices with problems are skipped (unless they are not being removed)
2335  if (currentNode->Flags & DNF_HAS_PROBLEM &&
2336  currentNode->State != DeviceNodeAwaitingQueuedRemoval)
2337  {
2338  goto skipEnum;
2339  }
2340 
2341  switch (currentNode->State)
2342  {
2343  case DeviceNodeUnspecified: // this state is not used
2344  break;
2346  DPRINT("DeviceNodeUninitialized %wZ\n", &currentNode->InstancePath);
2347  status = PiInitializeDevNode(currentNode);
2348  doProcessAgain = NT_SUCCESS(status);
2349  break;
2350  case DeviceNodeInitialized:
2351  DPRINT("DeviceNodeInitialized %wZ\n", &currentNode->InstancePath);
2353  doProcessAgain = NT_SUCCESS(status);
2354  break;
2356  DPRINT("DeviceNodeDriversAdded %wZ\n", &currentNode->InstancePath);
2357  status = IopAssignDeviceResources(currentNode);
2358  doProcessAgain = NT_SUCCESS(status);
2359  break;
2361  DPRINT("DeviceNodeResourcesAssigned %wZ\n", &currentNode->InstancePath);
2362  // send IRP_MN_START_DEVICE
2363  PiIrpStartDevice(currentNode);
2364 
2365  // skip DeviceNodeStartPending, it is probably used for an async IRP_MN_START_DEVICE
2367  doProcessAgain = TRUE;
2368  break;
2369  case DeviceNodeStartPending: // skipped on XP/2003
2370  break;
2372  DPRINT("DeviceNodeStartCompletion %wZ\n", &currentNode->InstancePath);
2373  status = currentNode->CompletionStatus;
2374  doProcessAgain = TRUE;
2375  if (!NT_SUCCESS(status))
2376  {
2380 
2381  PiSetDevNodeProblem(currentNode, problem);
2383  }
2384  else
2385  {
2386  // TODO: IopDoDeferredSetInterfaceState and IopAllocateLegacyBootResources
2387  // are called here too
2388 
2390  }
2391  break;
2393  DPRINT("DeviceNodeStartPostWork %wZ\n", &currentNode->InstancePath);
2394  status = PiStartDeviceFinal(currentNode);
2395  doProcessAgain = TRUE;
2396  break;
2397  case DeviceNodeStarted:
2398  if (currentNode->Flags & DNF_REENUMERATE)
2399  {
2400  DPRINT("DeviceNodeStarted REENUMERATE %wZ\n", &currentNode->InstancePath);
2401  currentNode->Flags &= ~DNF_REENUMERATE;
2403 
2404  // again, skip DeviceNodeEnumeratePending as with the starting sequence
2406  doProcessAgain = TRUE;
2407  }
2408  break;
2410  // we're here after sending IRP_MN_QUERY_STOP_DEVICE
2411  status = currentNode->CompletionStatus;
2412  if (NT_SUCCESS(status))
2413  {
2414  PiSetDevNodeState(currentNode, DeviceNodeStopped);
2415  }
2416  else
2417  {
2418  PiIrpCancelStopDevice(currentNode);
2419  PiSetDevNodeState(currentNode, DeviceNodeStarted);
2420  }
2421  break;
2422  case DeviceNodeStopped:
2423  // TODO: do resource rebalance (not implemented)
2424  ASSERT(FALSE);
2425  break;
2427  break;
2428  case DeviceNodeEnumeratePending: // skipped on XP/2003
2429  break;
2431  DPRINT("DeviceNodeEnumerateCompletion %wZ\n", &currentNode->InstancePath);
2432  status = PiEnumerateDevice(currentNode);
2433  doProcessAgain = TRUE;
2434  break;
2436  break;
2438  DPRINT("DeviceNodeAwaitingQueuedRemoval %wZ\n", &currentNode->InstancePath);
2439  status = IopRemoveDevice(currentNode);
2440  break;
2442  break;
2444  break;
2445  case DeviceNodeRemoved:
2446  break;
2448  break;
2449  case DeviceNodeDeleted:
2450  break;
2451  default:
2452  break;
2453  }
2454 
2455 skipEnum:
2456  if (!doProcessAgain)
2457  {
2458  KIRQL OldIrql;
2460  /* If we have a child, simply go down the tree */
2461  if (currentNode->State != DeviceNodeRemoved && currentNode->Child != NULL)
2462  {
2463  ASSERT(currentNode->Child->Parent == currentNode);
2464  currentNode = currentNode->Child;
2465  }
2466  else
2467  {
2468  while (currentNode != RootNode)
2469  {
2470  /* All children processed -- go sideways */
2471  if (currentNode->Sibling != NULL)
2472  {
2473  ASSERT(currentNode->Sibling->Parent == currentNode->Parent);
2474  currentNode = currentNode->Sibling;
2475  break;
2476  }
2477  else
2478  {
2479  /* We're the last sibling -- go back up */
2480  ASSERT(currentNode->Parent->LastChild == currentNode);
2481  currentNode = currentNode->Parent;
2482  }
2483  /* We already visited the parent and all its children, so keep looking */
2484  }
2485  }
2487  }
2488  ObDereferenceObject(referencedObject);
2489  } while (doProcessAgain || currentNode != RootNode);
2490 }
ULONG Flags
Definition: iotypes.h:847
static NTSTATUS PiInitializeDevNode(_In_ PDEVICE_NODE DeviceNode)
Definition: devaction.c:1189
PDEVICE_OBJECT PhysicalDeviceObject
Definition: iotypes.h:850
static NTSTATUS PiEnumerateDevice(_In_ PDEVICE_NODE DeviceNode)
Definition: devaction.c:2125
#define DNF_HAS_PROBLEM
Definition: iotypes.h:183
PNP_DEVNODE_STATE PiSetDevNodeState(_In_ PDEVICE_NODE DeviceNode, _In_ PNP_DEVNODE_STATE NewState)
Definition: devnode.c:108
NTSTATUS PiIrpCancelStopDevice(_In_ PDEVICE_NODE DeviceNode)
Definition: pnpirp.c:154
#define TRUE
Definition: types.h:120
LONG NTSTATUS
Definition: precomp.h:26
VOID NTAPI KeAcquireSpinLock(PKSPIN_LOCK SpinLock, PKIRQL OldIrql)
Definition: spinlock.c:50
#define CM_PROB_FAILED_START
Definition: cfg.h:40
NTSTATUS PiIrpStartDevice(_In_ PDEVICE_NODE DeviceNode)
Definition: pnpirp.c:87
struct _DEVICE_NODE * Parent
Definition: iotypes.h:836
static NTSTATUS IopRemoveDevice(PDEVICE_NODE DeviceNode)
Definition: devaction.c:1979
UCHAR KIRQL
Definition: env_spec_w32.h:591
struct _DEVICE_NODE * Child
Definition: iotypes.h:835
#define FALSE
Definition: types.h:117
unsigned int UINT32
unsigned char BOOLEAN
PNP_DEVNODE_STATE State
Definition: iotypes.h:841
KIRQL OldIrql
Definition: mm.h:1502
VOID PiSetDevNodeProblem(_In_ PDEVICE_NODE DeviceNode, _In_ UINT32 Problem)
Definition: devnode.c:132
#define ASSERT(a)
Definition: mode.c:44
NTSTATUS CompletionStatus
Definition: iotypes.h:845
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
#define DNF_REENUMERATE
Definition: iotypes.h:173
static NTSTATUS PiCallDriverAddDevice(_In_ PDEVICE_NODE DeviceNode, _In_ BOOLEAN LoadDrivers)
Loads all drivers for a device node (actual service and filters) and calls their AddDevice routine.
Definition: devaction.c:594
#define ObDereferenceObject
Definition: obfuncs.h:203
BOOLEAN PnPBootDriversInitialized
Definition: pnpinit.c:27
#define CM_PROB_NEED_RESTART
Definition: cfg.h:44
UNICODE_STRING InstancePath
Definition: iotypes.h:853
KSPIN_LOCK IopDeviceTreeLock
Definition: devnode.c:19
#define STATUS_PNP_REBOOT_REQUIRED
Definition: ntstatus.h:830
#define NULL
Definition: types.h:112
#define KeReleaseSpinLock(sl, irql)
Definition: env_spec_w32.h:627
struct _DEVICE_NODE * Sibling
Definition: iotypes.h:834
#define ObReferenceObject
Definition: obfuncs.h:204
static NTSTATUS PiStartDeviceFinal(_In_ PDEVICE_NODE DeviceNode)
Definition: devaction.c:1506
NTSTATUS NTAPI IopAssignDeviceResources(IN PDEVICE_NODE DeviceNode)
Definition: pnpres.c:1106
#define DPRINT
Definition: sndvol32.h:71
NTSTATUS PiIrpQueryDeviceRelations(_In_ PDEVICE_NODE DeviceNode, _In_ DEVICE_RELATION_TYPE Type)
Definition: pnpirp.c:176
static SERVICE_STATUS status
Definition: service.c:31
PCONFIGURATION_COMPONENT_DATA RootNode
Definition: macharm.c:19
Definition: ps.c:97

Referenced by PipDeviceActionWorker().

◆ PiEnumerateDevice()

static NTSTATUS PiEnumerateDevice ( _In_ PDEVICE_NODE  DeviceNode)
static

Definition at line 2125 of file devaction.c.

2127 {
2128  PDEVICE_OBJECT ChildDeviceObject;
2129  PDEVICE_NODE ChildDeviceNode;
2130  ULONG i;
2131 
2132  // bus relations are already obtained for this device node
2133 
2134  if (!NT_SUCCESS(DeviceNode->CompletionStatus))
2135  {
2136  DPRINT("QDR request failed for %wZ, status %x\n",
2137  &DeviceNode->InstancePath, DeviceNode->CompletionStatus);
2138  // treat as if there are no child objects
2139  }
2140 
2141  PDEVICE_RELATIONS DeviceRelations = DeviceNode->OverUsed1.PendingDeviceRelations;
2142  DeviceNode->OverUsed1.PendingDeviceRelations = NULL;
2143 
2144  // it's acceptable not to have PDOs
2145  if (!DeviceRelations)
2146  {
2148  DPRINT("No PDOs\n");
2149  return STATUS_SUCCESS;
2150  }
2151 
2152  // mark children nodes as non-present (those not returned in DR request will be removed)
2153  for (PDEVICE_NODE child = DeviceNode->Child; child != NULL; child = child->Sibling)
2154  {
2155  child->Flags &= ~DNF_ENUMERATED;
2156  }
2157 
2158  DPRINT("PiEnumerateDevice: enumerating %u children\n", DeviceRelations->Count);
2159 
2160  // create device nodes for all new children and set DNF_ENUMERATED back for old ones
2161  for (i = 0; i < DeviceRelations->Count; i++)
2162  {
2163  ChildDeviceObject = DeviceRelations->Objects[i];
2164  ASSERT((ChildDeviceObject->Flags & DO_DEVICE_INITIALIZING) == 0);
2165 
2166  ChildDeviceNode = IopGetDeviceNode(ChildDeviceObject);
2167  if (!ChildDeviceNode)
2168  {
2169  /* One doesn't exist, create it */
2170  ChildDeviceNode = PipAllocateDeviceNode(ChildDeviceObject);
2171  if (ChildDeviceNode)
2172  {
2173  PiInsertDevNode(ChildDeviceNode, DeviceNode);
2174 
2175  /* Mark the node as enumerated */
2176  ChildDeviceNode->Flags |= DNF_ENUMERATED;
2177 
2178  /* Mark the DO as bus enumerated */
2179  ChildDeviceObject->Flags |= DO_BUS_ENUMERATED_DEVICE;
2180  }
2181  else
2182  {
2183  /* Ignore this DO */
2184  DPRINT1("PipAllocateDeviceNode() failed. Skipping PDO %u\n", i);
2185  ObDereferenceObject(ChildDeviceObject);
2186  }
2187  }
2188  else
2189  {
2190  /* Mark it as enumerated */
2191  ChildDeviceNode->Flags |= DNF_ENUMERATED;
2192  ObDereferenceObject(ChildDeviceObject);
2193  }
2194  }
2195  ExFreePool(DeviceRelations);
2196 
2197  // time to remove non-reported devices
2198  for (PDEVICE_NODE child = DeviceNode->Child; child != NULL; child = child->Sibling)
2199  {
2200  if (!(child->Flags & (DNF_ENUMERATED|DNF_DEVICE_GONE)))
2201  {
2202  // this flag indicates that this is a surprise removal
2203  child->Flags |= DNF_DEVICE_GONE;
2205  }
2206  }
2207 
2209  return STATUS_SUCCESS;
2210 }
#define DO_DEVICE_INITIALIZING
Definition: env_spec_w32.h:399
ULONG Flags
Definition: iotypes.h:847
PNP_DEVNODE_STATE PiSetDevNodeState(_In_ PDEVICE_NODE DeviceNode, _In_ PNP_DEVNODE_STATE NewState)
Definition: devnode.c:108
PDEVICE_OBJECT Objects[1]
Definition: iotypes.h:2163
static HWND child
Definition: cursoricon.c:298
PDEVICE_NODE PipAllocateDeviceNode(IN PDEVICE_OBJECT PhysicalDeviceObject)
#define DO_BUS_ENUMERATED_DEVICE
#define ASSERT(a)
Definition: mode.c:44
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
#define ObDereferenceObject
Definition: obfuncs.h:203
Definition: Node.h:9
#define DNF_DEVICE_GONE
Definition: iotypes.h:186
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
#define NULL
Definition: types.h:112
#define DPRINT1
Definition: precomp.h:8
VOID PiInsertDevNode(_In_ PDEVICE_NODE DeviceNode, _In_ PDEVICE_NODE ParentNode)
Definition: devnode.c:80
unsigned int ULONG
Definition: retypes.h:1
#define DNF_ENUMERATED
Definition: iotypes.h:174
#define STATUS_SUCCESS
Definition: shellext.h:65
#define DPRINT
Definition: sndvol32.h:71
#define ExFreePool(addr)
Definition: env_spec_w32.h:352
PDEVICE_NODE FASTCALL IopGetDeviceNode(IN PDEVICE_OBJECT DeviceObject)

Referenced by PiDevNodeStateMachine().

◆ PiInitializeDevNode()

static NTSTATUS PiInitializeDevNode ( _In_ PDEVICE_NODE  DeviceNode)
static

Definition at line 1189 of file devaction.c.

1191 {
1193  NTSTATUS Status;
1194  HANDLE InstanceKey = NULL;
1195  UNICODE_STRING InstancePathU;
1196  PDEVICE_OBJECT OldDeviceObject;
1197 
1198  DPRINT("PiProcessNewDevNode(%p)\n", DeviceNode);
1199  DPRINT("PDO 0x%p\n", DeviceNode->PhysicalDeviceObject);
1200 
1201  /*
1202  * FIXME: For critical errors, cleanup and disable device, but always
1203  * return STATUS_SUCCESS.
1204  */
1205 
1206  Status = IopCreateDeviceInstancePath(DeviceNode, &InstancePathU);
1207  if (!NT_SUCCESS(Status))
1208  {
1210  {
1211  DPRINT1("IopCreateDeviceInstancePath() failed with status 0x%lx\n", Status);
1212  }
1213  return Status;
1214  }
1215 
1216  /* Verify that this is not a duplicate */
1217  OldDeviceObject = IopGetDeviceObjectFromDeviceInstance(&InstancePathU);
1218  if (OldDeviceObject != NULL)
1219  {
1220  PDEVICE_NODE OldDeviceNode = IopGetDeviceNode(OldDeviceObject);
1221 
1222  DPRINT1("Duplicate device instance '%wZ'\n", &InstancePathU);
1223  DPRINT1("Current instance parent: '%wZ'\n", &DeviceNode->Parent->InstancePath);
1224  DPRINT1("Old instance parent: '%wZ'\n", &OldDeviceNode->Parent->InstancePath);
1225 
1226  KeBugCheckEx(PNP_DETECTED_FATAL_ERROR,
1227  0x01,
1228  (ULONG_PTR)DeviceNode->PhysicalDeviceObject,
1229  (ULONG_PTR)OldDeviceObject,
1230  0);
1231  }
1232 
1233  DeviceNode->InstancePath = InstancePathU;
1234 
1235  DPRINT("InstancePath is %S\n", DeviceNode->InstancePath.Buffer);
1236 
1237  /*
1238  * Create registry key for the instance id, if it doesn't exist yet
1239  */
1240  Status = IopCreateDeviceKeyPath(&DeviceNode->InstancePath, REG_OPTION_NON_VOLATILE, &InstanceKey);
1241  if (!NT_SUCCESS(Status))
1242  {
1243  DPRINT1("Failed to create the instance key! (Status %lx)\n", Status);
1244 
1245  /* We have to return success otherwise we abort the traverse operation */
1246  return STATUS_SUCCESS;
1247  }
1248 
1249  IopQueryHardwareIds(DeviceNode, InstanceKey);
1250 
1251  IopQueryCompatibleIds(DeviceNode, InstanceKey);
1252 
1