Re: [PATCH v7 06/10] usbdk: Load hide rules for auto-redirected devices

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On Thu, 2016-02-11 at 18:04 +0200, Dmitry Fleytman wrote:
> Hide rules order UsbDk to avoid showing specific USB
> devices to Windows PnP manager.
> 
> Spice-gtk loads hide rules for devices that should be
> automatically redirected on connection to prevent Windows
> from showing "New Hardware Found" wizard window for USB
> devices that do not have driver on the local system.
> 
> Signed-off-by: Dmitry Fleytman <dmitry@xxxxxxxxxx>
> ---
>  src/usb-device-manager.c | 82
> ++++++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 82 insertions(+)
> 
> diff --git a/src/usb-device-manager.c b/src/usb-device-manager.c
> index 9a3df97..ee8e490 100644
> --- a/src/usb-device-manager.c
> +++ b/src/usb-device-manager.c
> @@ -29,6 +29,10 @@
>  #include <errno.h>
>  #include <libusb.h>
>  
> +#ifdef G_OS_WIN32
> +#include "usbdk_api.h"
> +#endif
> +
>  #if defined(USE_GUDEV)
>  #include <gudev/gudev.h>
>  #elif defined(G_OS_WIN32)
> @@ -122,6 +126,8 @@ struct _SpiceUsbDeviceManagerPrivate {
>      libusb_hotplug_callback_handle hp_handle;
>  #endif
>  #ifdef G_OS_WIN32
> +    usbdk_api_wrapper     *usbdk_api;
> +    HANDLE                 usbdk_hider_handle;
>      SpiceWinUsbDriver     *installer;
>  #endif
>      gboolean               use_usbclerk;
> @@ -184,6 +190,9 @@ static void spice_usb_device_unref(SpiceUsbDevice
> *device);
>  #ifdef G_OS_WIN32
>  static guint8 spice_usb_device_get_state(SpiceUsbDevice *device);
>  static void  spice_usb_device_set_state(SpiceUsbDevice *device, guint8 s);
> +
> +static void _usbdk_hider_update(SpiceUsbDeviceManager *manager);
> +static void _usbdk_hider_clear(SpiceUsbDeviceManager *manager);
>  #endif
>  
>  static gboolean spice_usb_manager_device_equal_libdev(SpiceUsbDeviceManager
> *manager,
> @@ -359,6 +368,9 @@ static void spice_usb_device_manager_finalize(GObject
> *gobject)
>  #ifdef G_OS_WIN32
>      if (priv->installer)
>          g_object_unref(priv->installer);
> +    if (!priv->use_usbclerk) {
> +        _usbdk_hider_clear(self);
> +    }
>  #endif
>  #endif
>  
> @@ -430,6 +442,11 @@ static void spice_usb_device_manager_set_property(GObject
>        *gobject,
>          break;
>      case PROP_AUTO_CONNECT:
>          priv->auto_connect = g_value_get_boolean(value);
> +#if defined(G_OS_WIN32) && defined(USE_USBREDIR)
> +        if (!priv->use_usbclerk) {
> +            _usbdk_hider_update(self);
> +        }
> +#endif
>          break;
>      case PROP_AUTO_CONNECT_FILTER: {
>          const gchar *filter = g_value_get_string(value);
> @@ -452,6 +469,12 @@ static void spice_usb_device_manager_set_property(GObject
>        *gobject,
>  #endif
>          g_free(priv->auto_connect_filter);
>          priv->auto_connect_filter = g_strdup(filter);
> +
> +#if defined(G_OS_WIN32) && defined(USE_USBREDIR)
> +        if (!priv->use_usbclerk) {
> +            _usbdk_hider_update(self);
> +        }
> +#endif
>          break;
>      }
>      case PROP_REDIRECT_ON_CONNECT: {
> @@ -1863,6 +1886,65 @@ guint8 spice_usb_device_get_state(SpiceUsbDevice
> *device)
>  
>      return info->state;
>  }
> +
> +static
> +gboolean _usbdk_hider_prepare(SpiceUsbDeviceManager *manager)
> +{
> +    SpiceUsbDeviceManagerPrivate *priv = manager->priv;
> +
> +    g_return_val_if_fail(!priv->use_usbclerk, FALSE);
> +
> +    if (priv->usbdk_hider_handle == NULL) {
> +        priv->usbdk_hider_handle = usbdk_create_hider_handle(priv
> ->usbdk_api);
> +        if (priv->usbdk_hider_handle == NULL) {
> +            g_warning("Failed to instantiate UsbDk hider interface");
> +            return FALSE;
> +        }
> +    }
> +
> +    return TRUE;
> +}
> +
> +static
> +void _usbdk_hider_clear(SpiceUsbDeviceManager *manager)
> +{
> +    SpiceUsbDeviceManagerPrivate *priv = manager->priv;
> +
> +    g_return_if_fail(!priv->use_usbclerk);
> +
> +    if (priv->usbdk_hider_handle != NULL) {
> +        usbdk_clear_hide_rules(priv->usbdk_api, priv->usbdk_hider_handle);
> +        usbdk_close_hider_handle(priv->usbdk_api, priv->usbdk_hider_handle);
> +        priv->usbdk_hider_handle = NULL;
> +    }
> +}
> +
> +static
> +void _usbdk_hider_update(SpiceUsbDeviceManager *manager)
> +{
> +    SpiceUsbDeviceManagerPrivate *priv = manager->priv;
> +
> +    g_return_if_fail(!priv->use_usbclerk);
> +
> +    if (priv->auto_connect_filter == NULL) {
> +        SPICE_DEBUG("No autoredirect rules, no hider setup needed");
> +        _usbdk_hider_clear(manager);
> +        return;
> +    }
> +
> +    if (!priv->auto_connect) {
> +        SPICE_DEBUG("Auto-connect disabled, no hider setup needed");
> +        _usbdk_hider_clear(manager);
> +        return;
> +    }
> +
> +    if(_usbdk_hider_prepare(manager)) {
> +        usbdk_api_set_hide_rules(priv->usbdk_api,
> +                                 priv->usbdk_hider_handle,
> +                                 priv->auto_connect_filter);

So, in the previous version of this patch, you passed priv->redirect_on_connect
as the third parameter to usbdk_api_set_hide_rules(). Why did you change this to
priv->auto_connect_filter?

> +    }
> +}
> +
>  #endif
>  
>  static SpiceUsbDevice *spice_usb_device_ref(SpiceUsbDevice *device)
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