VOID
IopNotifyPlugPlayNotification(
- IN PDEVICE_OBJECT DeviceObject,
- IN IO_NOTIFICATION_EVENT_CATEGORY EventCategory,
- IN LPCGUID Event,
- IN PVOID EventCategoryData1,
- IN PVOID EventCategoryData2)
+ IN PDEVICE_OBJECT DeviceObject,
+ IN IO_NOTIFICATION_EVENT_CATEGORY EventCategory,
+ IN LPCGUID Event,
+ IN PVOID EventCategoryData1,
+ IN PVOID EventCategoryData2)
{
- PPNP_NOTIFY_ENTRY ChangeEntry;
- PLIST_ENTRY ListEntry;
- PVOID NotificationStructure;
- BOOLEAN CallCurrentEntry;
- UNICODE_STRING GuidString;
- NTSTATUS Status;
- PDEVICE_OBJECT EntryDeviceObject = NULL;
-
- ASSERT(DeviceObject);
-
- KeAcquireGuardedMutex(&PnpNotifyListLock);
- if (IsListEmpty(&PnpNotifyListHead))
- {
- KeReleaseGuardedMutex(&PnpNotifyListLock);
- return;
- }
-
- switch (EventCategory)
- {
- case EventCategoryDeviceInterfaceChange:
- {
- PDEVICE_INTERFACE_CHANGE_NOTIFICATION NotificationInfos;
- NotificationStructure = NotificationInfos = ExAllocatePoolWithTag(
- PagedPool,
- sizeof(DEVICE_INTERFACE_CHANGE_NOTIFICATION),
- TAG_PNP_NOTIFY);
- if (!NotificationInfos)
- {
- KeReleaseGuardedMutex(&PnpNotifyListLock);
- return;
- }
- NotificationInfos->Version = 1;
- NotificationInfos->Size = sizeof(DEVICE_INTERFACE_CHANGE_NOTIFICATION);
- RtlCopyMemory(&NotificationInfos->Event, Event, sizeof(GUID));
- RtlCopyMemory(&NotificationInfos->InterfaceClassGuid, EventCategoryData1, sizeof(GUID));
- NotificationInfos->SymbolicLinkName = (PUNICODE_STRING)EventCategoryData2;
- Status = RtlStringFromGUID(&NotificationInfos->InterfaceClassGuid, &GuidString);
- if (!NT_SUCCESS(Status))
- {
- KeReleaseGuardedMutex(&PnpNotifyListLock);
- ExFreePoolWithTag(NotificationStructure, TAG_PNP_NOTIFY);
- return;
- }
- break;
- }
- case EventCategoryHardwareProfileChange:
- {
- PHWPROFILE_CHANGE_NOTIFICATION NotificationInfos;
- NotificationStructure = NotificationInfos = ExAllocatePoolWithTag(
- PagedPool,
- sizeof(HWPROFILE_CHANGE_NOTIFICATION),
- TAG_PNP_NOTIFY);
- if (!NotificationInfos)
- {
- KeReleaseGuardedMutex(&PnpNotifyListLock);
- return;
- }
- NotificationInfos->Version = 1;
- NotificationInfos->Size = sizeof(HWPROFILE_CHANGE_NOTIFICATION);
- RtlCopyMemory(&NotificationInfos->Event, Event, sizeof(GUID));
- break;
- }
- case EventCategoryTargetDeviceChange:
- {
- if (Event != &GUID_PNP_CUSTOM_NOTIFICATION)
- {
- PTARGET_DEVICE_REMOVAL_NOTIFICATION NotificationInfos;
- NotificationStructure = NotificationInfos = ExAllocatePoolWithTag(
- PagedPool,
- sizeof(TARGET_DEVICE_REMOVAL_NOTIFICATION),
- TAG_PNP_NOTIFY);
- if (!NotificationInfos)
- {
- KeReleaseGuardedMutex(&PnpNotifyListLock);
- return;
- }
- NotificationInfos->Version = 1;
- NotificationInfos->Size = sizeof(TARGET_DEVICE_REMOVAL_NOTIFICATION);
- RtlCopyMemory(&NotificationInfos->Event, Event, sizeof(GUID));
- }
- else
- {
- PTARGET_DEVICE_CUSTOM_NOTIFICATION NotificationInfos;
- NotificationStructure = NotificationInfos = ExAllocatePoolWithTag(
- PagedPool,
- sizeof(TARGET_DEVICE_CUSTOM_NOTIFICATION),
- TAG_PNP_NOTIFY);
- if (!NotificationInfos)
- {
- KeReleaseGuardedMutex(&PnpNotifyListLock);
- return;
- }
- RtlCopyMemory(NotificationInfos, EventCategoryData1, sizeof(TARGET_DEVICE_CUSTOM_NOTIFICATION));
- }
- break;
- }
- default:
- {
- DPRINT1("IopNotifyPlugPlayNotification(): unknown EventCategory 0x%x UNIMPLEMENTED\n", EventCategory);
- KeReleaseGuardedMutex(&PnpNotifyListLock);
- return;
- }
- }
-
- /* Loop through procedures registred in PnpNotifyListHead
- * list to find those that meet some criteria.
- */
- ListEntry = PnpNotifyListHead.Flink;
- while (ListEntry != &PnpNotifyListHead)
- {
- ChangeEntry = CONTAINING_RECORD(ListEntry, PNP_NOTIFY_ENTRY, PnpNotifyList);
- CallCurrentEntry = FALSE;
-
- if (ChangeEntry->EventCategory != EventCategory)
- {
- ListEntry = ListEntry->Flink;
- continue;
- }
-
- switch (EventCategory)
- {
- case EventCategoryDeviceInterfaceChange:
- {
- if (RtlCompareUnicodeString(&ChangeEntry->Guid, &GuidString, FALSE) == 0)
- {
- CallCurrentEntry = TRUE;
- }
- break;
- }
- case EventCategoryHardwareProfileChange:
- {
- CallCurrentEntry = TRUE;
- break;
- }
- case EventCategoryTargetDeviceChange:
- {
- Status = IoGetRelatedTargetDevice(ChangeEntry->FileObject, &EntryDeviceObject);
- if (NT_SUCCESS(Status))
- {
- if (DeviceObject == EntryDeviceObject)
- {
- if (Event == &GUID_PNP_CUSTOM_NOTIFICATION)
- {
- ((PTARGET_DEVICE_CUSTOM_NOTIFICATION)NotificationStructure)->FileObject = ChangeEntry->FileObject;
- }
- else
- {
- ((PTARGET_DEVICE_REMOVAL_NOTIFICATION)NotificationStructure)->FileObject = ChangeEntry->FileObject;
- }
- CallCurrentEntry = TRUE;
- }
- }
- break;
- }
- default:
- {
- DPRINT1("IopNotifyPlugPlayNotification(): unknown EventCategory 0x%x UNIMPLEMENTED\n", EventCategory);
- break;
- }
- }
-
- /* Move to the next element now, as callback may unregister itself */
- ListEntry = ListEntry->Flink;
- /* FIXME: If ListEntry was the last element and that callback registers
- * new notifications, those won't be checked... */
-
- if (CallCurrentEntry)
- {
- /* Call entry into new allocated memory */
- DPRINT("IopNotifyPlugPlayNotification(): found suitable callback %p\n",
- ChangeEntry);
-
- KeReleaseGuardedMutex(&PnpNotifyListLock);
- (ChangeEntry->PnpNotificationProc)(
- NotificationStructure,
- ChangeEntry->Context);
- KeAcquireGuardedMutex(&PnpNotifyListLock);
- }
-
- }
- KeReleaseGuardedMutex(&PnpNotifyListLock);
- ExFreePoolWithTag(NotificationStructure, TAG_PNP_NOTIFY);
- if (EventCategory == EventCategoryDeviceInterfaceChange)
- RtlFreeUnicodeString(&GuidString);
+ PPNP_NOTIFY_ENTRY ChangeEntry;
+ PLIST_ENTRY ListEntry;
+ PVOID NotificationStructure;
+ BOOLEAN CallCurrentEntry;
+ UNICODE_STRING GuidString;
+ NTSTATUS Status;
+ PDEVICE_OBJECT EntryDeviceObject = NULL;
+
+ ASSERT(DeviceObject);
+
+ KeAcquireGuardedMutex(&PnpNotifyListLock);
+ if (IsListEmpty(&PnpNotifyListHead))
+ {
+ KeReleaseGuardedMutex(&PnpNotifyListLock);
+ return;
+ }
+
+ switch (EventCategory)
+ {
+ case EventCategoryDeviceInterfaceChange:
+ {
+ PDEVICE_INTERFACE_CHANGE_NOTIFICATION NotificationInfos;
+ NotificationStructure = NotificationInfos = ExAllocatePoolWithTag(
+ PagedPool,
+ sizeof(DEVICE_INTERFACE_CHANGE_NOTIFICATION),
+ TAG_PNP_NOTIFY);
+ if (!NotificationInfos)
+ {
+ KeReleaseGuardedMutex(&PnpNotifyListLock);
+ return;
+ }
+ NotificationInfos->Version = 1;
+ NotificationInfos->Size = sizeof(DEVICE_INTERFACE_CHANGE_NOTIFICATION);
+ RtlCopyMemory(&NotificationInfos->Event, Event, sizeof(GUID));
+ RtlCopyMemory(&NotificationInfos->InterfaceClassGuid, EventCategoryData1, sizeof(GUID));
+ NotificationInfos->SymbolicLinkName = (PUNICODE_STRING)EventCategoryData2;
+ Status = RtlStringFromGUID(&NotificationInfos->InterfaceClassGuid, &GuidString);
+ if (!NT_SUCCESS(Status))
+ {
+ KeReleaseGuardedMutex(&PnpNotifyListLock);
+ ExFreePoolWithTag(NotificationStructure, TAG_PNP_NOTIFY);
+ return;
+ }
+ break;
+ }
+ case EventCategoryHardwareProfileChange:
+ {
+ PHWPROFILE_CHANGE_NOTIFICATION NotificationInfos;
+ NotificationStructure = NotificationInfos = ExAllocatePoolWithTag(
+ PagedPool,
+ sizeof(HWPROFILE_CHANGE_NOTIFICATION),
+ TAG_PNP_NOTIFY);
+ if (!NotificationInfos)
+ {
+ KeReleaseGuardedMutex(&PnpNotifyListLock);
+ return;
+ }
+ NotificationInfos->Version = 1;
+ NotificationInfos->Size = sizeof(HWPROFILE_CHANGE_NOTIFICATION);
+ RtlCopyMemory(&NotificationInfos->Event, Event, sizeof(GUID));
+ break;
+ }
+ case EventCategoryTargetDeviceChange:
+ {
+ if (Event != &GUID_PNP_CUSTOM_NOTIFICATION)
+ {
+ PTARGET_DEVICE_REMOVAL_NOTIFICATION NotificationInfos;
+ NotificationStructure = NotificationInfos = ExAllocatePoolWithTag(
+ PagedPool,
+ sizeof(TARGET_DEVICE_REMOVAL_NOTIFICATION),
+ TAG_PNP_NOTIFY);
+ if (!NotificationInfos)
+ {
+ KeReleaseGuardedMutex(&PnpNotifyListLock);
+ return;
+ }
+ NotificationInfos->Version = 1;
+ NotificationInfos->Size = sizeof(TARGET_DEVICE_REMOVAL_NOTIFICATION);
+ RtlCopyMemory(&NotificationInfos->Event, Event, sizeof(GUID));
+ }
+ else
+ {
+ PTARGET_DEVICE_CUSTOM_NOTIFICATION NotificationInfos;
+ NotificationStructure = NotificationInfos = ExAllocatePoolWithTag(
+ PagedPool,
+ sizeof(TARGET_DEVICE_CUSTOM_NOTIFICATION),
+ TAG_PNP_NOTIFY);
+ if (!NotificationInfos)
+ {
+ KeReleaseGuardedMutex(&PnpNotifyListLock);
+ return;
+ }
+ RtlCopyMemory(NotificationInfos, EventCategoryData1, sizeof(TARGET_DEVICE_CUSTOM_NOTIFICATION));
+ }
+ break;
+ }
+ default:
+ {
+ DPRINT1("IopNotifyPlugPlayNotification(): unknown EventCategory 0x%x UNIMPLEMENTED\n", EventCategory);
+ KeReleaseGuardedMutex(&PnpNotifyListLock);
+ return;
+ }
+ }
+
+ /* Loop through procedures registred in PnpNotifyListHead
+ * list to find those that meet some criteria.
+ */
+ ListEntry = PnpNotifyListHead.Flink;
+ while (ListEntry != &PnpNotifyListHead)
+ {
+ ChangeEntry = CONTAINING_RECORD(ListEntry, PNP_NOTIFY_ENTRY, PnpNotifyList);
+ CallCurrentEntry = FALSE;
+
+ if (ChangeEntry->EventCategory != EventCategory)
+ {
+ ListEntry = ListEntry->Flink;
+ continue;
+ }
+
+ switch (EventCategory)
+ {
+ case EventCategoryDeviceInterfaceChange:
+ {
+ if (RtlCompareUnicodeString(&ChangeEntry->Guid, &GuidString, FALSE) == 0)
+ {
+ CallCurrentEntry = TRUE;
+ }
+ break;
+ }
+ case EventCategoryHardwareProfileChange:
+ {
+ CallCurrentEntry = TRUE;
+ break;
+ }
+ case EventCategoryTargetDeviceChange:
+ {
+ Status = IoGetRelatedTargetDevice(ChangeEntry->FileObject, &EntryDeviceObject);
+ if (NT_SUCCESS(Status))
+ {
+ if (DeviceObject == EntryDeviceObject)
+ {
+ if (Event == &GUID_PNP_CUSTOM_NOTIFICATION)
+ {
+ ((PTARGET_DEVICE_CUSTOM_NOTIFICATION)NotificationStructure)->FileObject = ChangeEntry->FileObject;
+ }
+ else
+ {
+ ((PTARGET_DEVICE_REMOVAL_NOTIFICATION)NotificationStructure)->FileObject = ChangeEntry->FileObject;
+ }
+ CallCurrentEntry = TRUE;
+ }
+ }
+ break;
+ }
+ default:
+ {
+ DPRINT1("IopNotifyPlugPlayNotification(): unknown EventCategory 0x%x UNIMPLEMENTED\n", EventCategory);
+ break;
+ }
+ }
+
+ /* Move to the next element now, as callback may unregister itself */
+ ListEntry = ListEntry->Flink;
+ /* FIXME: If ListEntry was the last element and that callback registers
+ * new notifications, those won't be checked... */
+
+ if (CallCurrentEntry)
+ {
+ /* Call entry into new allocated memory */
+ DPRINT("IopNotifyPlugPlayNotification(): found suitable callback %p\n",
+ ChangeEntry);
+
+ KeReleaseGuardedMutex(&PnpNotifyListLock);
+ (ChangeEntry->PnpNotificationProc)(NotificationStructure,
+ ChangeEntry->Context);
+ KeAcquireGuardedMutex(&PnpNotifyListLock);
+ }
+
+ }
+ KeReleaseGuardedMutex(&PnpNotifyListLock);
+ ExFreePoolWithTag(NotificationStructure, TAG_PNP_NOTIFY);
+ if (EventCategory == EventCategoryDeviceInterfaceChange)
+ RtlFreeUnicodeString(&GuidString);
}
/* PUBLIC FUNCTIONS **********************************************************/
return STATUS_INSUFFICIENT_RESOURCES;
}
- if (EventCategory == EventCategoryDeviceInterfaceChange &&
+ if (EventCategory == EventCategoryDeviceInterfaceChange &&
EventCategoryFlags & PNPNOTIFY_DEVICE_INTERFACE_INCLUDE_EXISTING_INTERFACES)
{
DEVICE_INTERFACE_CHANGE_NOTIFICATION NotificationInfos;
projects / reactos.git / blobdiff