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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
* vi:set noexpandtab tabstop=8 shiftwidth=8:
*
* Copyright (C) 2016 Richard Hughes <richard@hughsie.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
#include <fnmatch.h>
#include <gudev/gudev.h>
#include <gnome-software.h>
struct GsPluginData {
GUdevClient *client;
GPtrArray *devices;
};
static void
gs_plugin_modalias_uevent_cb (GUdevClient *client,
const gchar *action,
GUdevDevice *device,
GsPlugin *plugin)
{
GsPluginData *priv = gs_plugin_get_data (plugin);
if (g_strcmp0 (action, "add") == 0 ||
g_strcmp0 (action, "remove") == 0) {
g_debug ("invalidating devices as '%s' sent action '%s'",
g_udev_device_get_sysfs_path (device),
action);
g_ptr_array_set_size (priv->devices, 0);
}
}
void
gs_plugin_initialize (GsPlugin *plugin)
{
GsPluginData *priv = gs_plugin_alloc_data (plugin, sizeof(GsPluginData));
gs_plugin_add_rule (plugin, GS_PLUGIN_RULE_RUN_AFTER, "appstream");
gs_plugin_add_rule (plugin, GS_PLUGIN_RULE_RUN_BEFORE, "icons");
priv->devices = g_ptr_array_new_with_free_func ((GDestroyNotify) g_object_unref);
priv->client = g_udev_client_new (NULL);
g_signal_connect (priv->client, "uevent",
G_CALLBACK (gs_plugin_modalias_uevent_cb), plugin);
}
void
gs_plugin_destroy (GsPlugin *plugin)
{
GsPluginData *priv = gs_plugin_get_data (plugin);
g_object_unref (priv->client);
g_ptr_array_unref (priv->devices);
}
static void
gs_plugin_modalias_ensure_devices (GsPlugin *plugin)
{
GsPluginData *priv = gs_plugin_get_data (plugin);
g_autoptr(GList) list = NULL;
/* already set */
if (priv->devices->len > 0)
return;
/* get the devices, and assume ownership of each */
list = g_udev_client_query_by_subsystem (priv->client, NULL);
for (GList *l = list; l != NULL; l = l->next) {
GUdevDevice *device = G_UDEV_DEVICE (l->data);
if (g_udev_device_get_sysfs_attr (device, "modalias") == NULL) {
g_object_unref (device);
continue;
}
g_ptr_array_add (priv->devices, device);
}
g_debug ("%u devices with modalias", priv->devices->len);
}
static gboolean
gs_plugin_modalias_matches (GsPlugin *plugin, const gchar *modalias)
{
GsPluginData *priv = gs_plugin_get_data (plugin);
gs_plugin_modalias_ensure_devices (plugin);
for (guint i = 0; i < priv->devices->len; i++) {
GUdevDevice *device = g_ptr_array_index (priv->devices, i);
const gchar *modalias_tmp;
/* get the (optional) device modalias */
modalias_tmp = g_udev_device_get_sysfs_attr (device, "modalias");
if (modalias_tmp == NULL)
continue;
if (fnmatch (modalias, modalias_tmp, 0) == 0) {
g_debug ("matched %s against %s", modalias_tmp, modalias);
return TRUE;
}
}
return FALSE;
}
static gboolean
refine_app (GsPlugin *plugin,
GsApp *app,
GsPluginRefineFlags flags,
GCancellable *cancellable,
GError **error)
{
GPtrArray *provides;
guint i;
/* not required */
if (gs_app_get_icons(app)->len > 0)
return TRUE;
if (gs_app_get_kind (app) != AS_APP_KIND_DRIVER)
return TRUE;
/* do any of the modaliases match any installed hardware */
provides = gs_app_get_provides (app);
for (i = 0 ; i < provides->len; i++) {
AsProvide *prov = g_ptr_array_index (provides, i);
if (as_provide_get_kind (prov) != AS_PROVIDE_KIND_MODALIAS)
continue;
if (gs_plugin_modalias_matches (plugin, as_provide_get_value (prov))) {
g_autoptr(AsIcon) ic = NULL;
ic = as_icon_new ();
as_icon_set_kind (ic, AS_ICON_KIND_STOCK);
as_icon_set_name (ic, "emblem-system-symbolic");
gs_app_add_icon (app, ic);
gs_app_add_quirk (app, GS_APP_QUIRK_NOT_LAUNCHABLE);
break;
}
}
return TRUE;
}
gboolean
gs_plugin_refine (GsPlugin *plugin,
GsAppList *list,
GsPluginRefineFlags flags,
GCancellable *cancellable,
GError **error)
{
for (guint i = 0; i < gs_app_list_length (list); i++) {
GsApp *app = gs_app_list_index (list, i);
if (!refine_app (plugin, app, flags, cancellable, error))
return FALSE;
}
return TRUE;
}
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