From 5426a647c3f86885e4b9d8679d4a4c108933b5ee Mon Sep 17 00:00:00 2001
From: Alex Bozhko <abozhko@microsoft.com>
Date: Thu, 11 Jun 2026 16:13:41 -0700
Subject: Netvadapter: virtual NIC sample for KMDF and UMDF

---
 .../netadaptercx/netvadapter/drivercode/driver.cpp | 98 ++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 network/netadaptercx/netvadapter/drivercode/driver.cpp

(limited to 'network/netadaptercx/netvadapter/drivercode/driver.cpp')

diff --git a/network/netadaptercx/netvadapter/drivercode/driver.cpp b/network/netadaptercx/netvadapter/drivercode/driver.cpp
new file mode 100644
index 00000000..393292c1
--- /dev/null
+++ b/network/netadaptercx/netvadapter/drivercode/driver.cpp
@@ -0,0 +1,98 @@
+// Copyright (c) Microsoft Corporation. All rights reserved
+
+#include "pch.hpp"
+
+#include <wil/resource.h>
+
+#include "netvadapter.h"
+#include "trace.h"
+#include "driver.tmh"
+#include "device.h"
+#include "power.h"
+
+GLOBAL_CONTEXT NetvGlobalContext;
+
+EXTERN_C
+DRIVER_INITIALIZE
+    DriverEntry;
+
+EVT_WDF_DRIVER_DEVICE_ADD EvtDriverDeviceAdd;
+EVT_WDF_DRIVER_UNLOAD EvtDriverUnload;
+
+_Use_decl_annotations_
+NTSTATUS
+DriverEntry(
+    PDRIVER_OBJECT DriverObject,
+    PUNICODE_STRING RegistryPath
+    )
+{
+    WPP_INIT_TRACING(DriverObject, RegistryPath);
+
+    WDF_DRIVER_CONFIG config;
+    WDF_DRIVER_CONFIG_INIT(&config, EvtDriverDeviceAdd);
+    config.EvtDriverUnload = EvtDriverUnload;
+
+    NTSTATUS status = WdfDriverCreate(DriverObject,
+        RegistryPath,
+        WDF_NO_OBJECT_ATTRIBUTES,
+        &config,
+        NULL);
+
+    if (!NT_SUCCESS(status))
+    {
+        LogError(FLAG_DRIVER, "%!STATUS! WdfDriverCreate", status);
+        WPP_CLEANUP(DriverObject);
+
+        return status;
+    }
+
+    RETURN_STATUS_SUCCESS();
+}
+
+_Use_decl_annotations_
+NTSTATUS
+EvtDriverDeviceAdd(
+    WDFDRIVER Driver,
+    PWDFDEVICE_INIT DeviceInit
+    )
+{
+    UNREFERENCED_PARAMETER(Driver);
+
+    RETURN_IF_NOT_STATUS_SUCCESS(
+        NetDeviceInitConfig(DeviceInit));
+
+    WDF_PNPPOWER_EVENT_CALLBACKS pnpPowerCallbacks;
+    WDF_PNPPOWER_EVENT_CALLBACKS_INIT(&pnpPowerCallbacks);
+    pnpPowerCallbacks.EvtDevicePrepareHardware = EvtDevicePrepareHardware;
+    WdfDeviceInitSetPnpPowerEventCallbacks(DeviceInit, &pnpPowerCallbacks);
+
+    WDF_POWER_POLICY_EVENT_CALLBACKS powerPolicyCallbacks;
+    WDF_POWER_POLICY_EVENT_CALLBACKS_INIT(&powerPolicyCallbacks);
+    powerPolicyCallbacks.EvtDeviceArmWakeFromS0 = EvtDeviceArmWakeFromS0;
+    powerPolicyCallbacks.EvtDeviceDisarmWakeFromS0 = EvtDeviceDisarmWakeFromS0;
+    WdfDeviceInitSetPowerPolicyEventCallbacks(DeviceInit, &powerPolicyCallbacks);
+
+    WDF_OBJECT_ATTRIBUTES deviceAttributes;
+    WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&deviceAttributes, NetvDevice);
+
+    WDFDEVICE wdfDevice;
+    RETURN_IF_NOT_STATUS_SUCCESS(
+        WdfDeviceCreate(&DeviceInit, &deviceAttributes, &wdfDevice));
+
+    auto device = new (NetvDeviceGetContext(wdfDevice)) NetvDevice(wdfDevice);
+
+    RETURN_IF_NOT_STATUS_SUCCESS(
+        device->Initialize());
+
+    RETURN_STATUS_SUCCESS();
+}
+
+_Use_decl_annotations_
+VOID
+EvtDriverUnload(
+    WDFDRIVER Driver
+)
+{
+    UNREFERENCED_PARAMETER(Driver);
+    WPP_CLEANUP(WdfDriverWdmGetDriverObject(Driver));
+}
-- 
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