[ros-diffs] [reactos] 01/01: [NTOS:PNP] Add a stub for NtPlugPlayControl:PlugPlayControlInitializeDevice

[Eric Kohl]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=969f950bf34c478973878…

commit 969f950bf34c4789738785581d8c06fe8870b862
Author:     Eric Kohl <eric.kohl(a)reactos.org>
AuthorDate: Sun Apr 24 10:02:17 2022 +0200
Commit:     Eric Kohl <eric.kohl(a)reactos.org>
CommitDate: Sun Apr 24 10:02:17 2022 +0200

    [NTOS:PNP] Add a stub for NtPlugPlayControl:PlugPlayControlInitializeDevice
---
 ntoskrnl/io/pnpmgr/plugplay.c | 48 ++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 47 insertions(+), 1 deletion(-)

diff --git a/ntoskrnl/io/pnpmgr/plugplay.c b/ntoskrnl/io/pnpmgr/plugplay.c
index 4d64c1e54da..c1f108da332 100644
--- a/ntoskrnl/io/pnpmgr/plugplay.c
+++ b/ntoskrnl/io/pnpmgr/plugplay.c
@@ -186,6 +186,48 @@ IopCaptureUnicodeString(PUNICODE_STRING DstName, PUNICODE_STRING
SrcName)
     return Status;
 }
 
+
+static
+NTSTATUS
+IopInitializeDevice(
+    _In_ PPLUGPLAY_CONTROL_DEVICE_CONTROL_DATA ControlData)
+{
+    UNICODE_STRING DeviceInstance;
+    PDEVICE_OBJECT DeviceObject;
+    NTSTATUS Status = STATUS_SUCCESS;
+
+    DPRINT("IopInitializeDevice(%p)\n", ControlData);
+
+    Status = IopCaptureUnicodeString(&DeviceInstance,
&ControlData->DeviceInstance);
+    if (!NT_SUCCESS(Status))
+    {
+        return Status;
+    }
+
+    DPRINT("Device: %wZ\n", &DeviceInstance);
+
+    /* Leave, if the device already exists */
+    DeviceObject = IopGetDeviceObjectFromDeviceInstance(&DeviceInstance);
+    if (DeviceInstance.Buffer != NULL)
+    {
+        DPRINT("Device %wZ already exists!\n", &DeviceInstance);
+        Status = STATUS_SUCCESS;
+        goto done;
+    }
+
+    ObDereferenceObject(DeviceObject);
+
+    DPRINT("Device %wZ does not exist!\n", &DeviceInstance);
+
+    /* FIXME: Create a device node for the device instan*/
+
+done:
+    ExFreePool(DeviceInstance.Buffer);
+
+    return Status;
+}
+
+
 /*
  * Remove the current PnP event from the tail of the event queue
  * and signal IopPnpNotifyEvent if there is yet another event in the queue.
@@ -1308,7 +1350,11 @@ NtPlugPlayControl(IN PLUGPLAY_CONTROL_CLASS PlugPlayControlClass,
 
 //        case PlugPlayControlRegisterNewDevice:
 //        case PlugPlayControlDeregisterDevice:
-//        case PlugPlayControlInitializeDevice:
+
+        case PlugPlayControlInitializeDevice:
+            if (!Buffer || BufferLength <
sizeof(PLUGPLAY_CONTROL_DEVICE_CONTROL_DATA))
+                return STATUS_INVALID_PARAMETER;
+            return IopInitializeDevice((PPLUGPLAY_CONTROL_DEVICE_CONTROL_DATA)Buffer);
 
         case PlugPlayControlStartDevice:
         case PlugPlayControlResetDevice: