Index: /trunk/src/VBox/Additions/common/VBoxGuest/VBoxGuest-netbsd.c
===================================================================
--- /trunk/src/VBox/Additions/common/VBoxGuest/VBoxGuest-netbsd.c	(revision 69811)
+++ /trunk/src/VBox/Additions/common/VBoxGuest/VBoxGuest-netbsd.c	(revision 69812)
@@ -599,6 +599,46 @@
 }
 
-/* Common code that depend on g_DevExt. */
-#include "VBoxGuestIDC-unix.c.h"
+/**
+ * @note This code is duplicated on other platforms with variations, so please
+ *       keep them all up to date when making changes!
+ */
+int VBOXCALL VBoxGuestIDC(void *pvSession, uintptr_t uReq, PVBGLREQHDR pReqHdr, size_t cbReq)
+{
+    /*
+     * Simple request validation (common code does the rest).
+     */
+    int rc;
+    if (   RT_VALID_PTR(pReqHdr)
+        && cbReq >= sizeof(*pReqHdr))
+    {
+        /*
+         * All requests except the connect one requires a valid session.
+         */
+        PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pvSession;
+        if (pSession)
+        {
+            if (   RT_VALID_PTR(pSession)
+                && pSession->pDevExt == &g_DevExt)
+                rc = VGDrvCommonIoCtl(uReq, &g_DevExt, pSession, pReqHdr, cbReq);
+            else
+                rc = VERR_INVALID_HANDLE;
+        }
+        else if (uReq == VBGL_IOCTL_IDC_CONNECT)
+        {
+            rc = VGDrvCommonCreateKernelSession(&g_DevExt, &pSession);
+            if (RT_SUCCESS(rc))
+            {
+                rc = VGDrvCommonIoCtl(uReq, &g_DevExt, pSession, pReqHdr, cbReq);
+                if (RT_FAILURE(rc))
+                    VGDrvCommonCloseSession(&g_DevExt, pSession);
+            }
+        }
+        else
+            rc = VERR_INVALID_HANDLE;
+    }
+    else
+        rc = VERR_INVALID_POINTER;
+    return rc;
+}
 
 CFATTACH_DECL_NEW(vboxguest, sizeof(vboxguest_softc),