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-rw-r--r--plugins/modalias/gs-plugin-modalias.c199
1 files changed, 199 insertions, 0 deletions
diff --git a/plugins/modalias/gs-plugin-modalias.c b/plugins/modalias/gs-plugin-modalias.c
new file mode 100644
index 0000000..9efbcf1
--- /dev/null
+++ b/plugins/modalias/gs-plugin-modalias.c
@@ -0,0 +1,199 @@
+/* -*- 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>
+
+#include "gs-plugin-modalias.h"
+
+struct _GsPluginModalias {
+ GsPlugin parent;
+
+ GUdevClient *client;
+ GPtrArray *devices;
+};
+
+G_DEFINE_TYPE (GsPluginModalias, gs_plugin_modalias, GS_TYPE_PLUGIN)
+
+static void
+gs_plugin_modalias_uevent_cb (GUdevClient *client,
+ const gchar *action,
+ GUdevDevice *device,
+ gpointer user_data)
+{
+ GsPluginModalias *self = GS_PLUGIN_MODALIAS (user_data);
+
+ 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 (self->devices, 0);
+ }
+}
+
+static void
+gs_plugin_modalias_init (GsPluginModalias *self)
+{
+ GsPlugin *plugin = GS_PLUGIN (self);
+
+ gs_plugin_add_rule (plugin, GS_PLUGIN_RULE_RUN_AFTER, "appstream");
+ gs_plugin_add_rule (plugin, GS_PLUGIN_RULE_RUN_BEFORE, "icons");
+
+ self->devices = g_ptr_array_new_with_free_func ((GDestroyNotify) g_object_unref);
+ self->client = g_udev_client_new (NULL);
+ g_signal_connect (self->client, "uevent",
+ G_CALLBACK (gs_plugin_modalias_uevent_cb), self);
+}
+
+static void
+gs_plugin_modalias_dispose (GObject *object)
+{
+ GsPluginModalias *self = GS_PLUGIN_MODALIAS (object);
+
+ g_clear_object (&self->client);
+ g_clear_pointer (&self->devices, g_ptr_array_unref);
+
+ G_OBJECT_CLASS (gs_plugin_modalias_parent_class)->dispose (object);
+}
+
+static void
+gs_plugin_modalias_ensure_devices (GsPluginModalias *self)
+{
+ g_autoptr(GList) list = NULL;
+
+ /* already set */
+ if (self->devices->len > 0)
+ return;
+
+ /* get the devices, and assume ownership of each */
+ list = g_udev_client_query_by_subsystem (self->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 (self->devices, device);
+ }
+ g_debug ("%u devices with modalias", self->devices->len);
+}
+
+static gboolean
+gs_plugin_modalias_matches (GsPluginModalias *self,
+ const gchar *modalias)
+{
+ gs_plugin_modalias_ensure_devices (self);
+ for (guint i = 0; i < self->devices->len; i++) {
+ GUdevDevice *device = g_ptr_array_index (self->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 (GsPluginModalias *self,
+ GsApp *app,
+ GsPluginRefineFlags flags,
+ GCancellable *cancellable,
+ GError **error)
+{
+ GPtrArray *provided;
+ guint i;
+
+ /* not required */
+ if (gs_app_get_icons (app) != NULL)
+ return TRUE;
+ if (gs_app_get_kind (app) != AS_COMPONENT_KIND_DRIVER)
+ return TRUE;
+
+ /* do any of the modaliases match any installed hardware */
+ provided = gs_app_get_provided (app);
+ for (i = 0 ; i < provided->len; i++) {
+ GPtrArray *items;
+ AsProvided *prov = g_ptr_array_index (provided, i);
+ if (as_provided_get_kind (prov) != AS_PROVIDED_KIND_MODALIAS)
+ continue;
+ items = as_provided_get_items (prov);
+ for (guint j = 0; j < items->len; j++) {
+ if (gs_plugin_modalias_matches (self, (const gchar*) g_ptr_array_index (items, j))) {
+ g_autoptr(GIcon) ic = NULL;
+ ic = g_themed_icon_new ("emblem-system-symbolic");
+ gs_app_add_icon (app, ic);
+ gs_app_add_quirk (app, GS_APP_QUIRK_NOT_LAUNCHABLE);
+ break;
+ }
+ }
+ }
+ return TRUE;
+}
+
+static void
+gs_plugin_modalias_refine_async (GsPlugin *plugin,
+ GsAppList *list,
+ GsPluginRefineFlags flags,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ GsPluginModalias *self = GS_PLUGIN_MODALIAS (plugin);
+ g_autoptr(GTask) task = NULL;
+ g_autoptr(GError) local_error = NULL;
+
+ task = g_task_new (plugin, cancellable, callback, user_data);
+ g_task_set_source_tag (task, gs_plugin_modalias_refine_async);
+
+ for (guint i = 0; i < gs_app_list_length (list); i++) {
+ GsApp *app = gs_app_list_index (list, i);
+ if (!refine_app (self, app, flags, cancellable, &local_error)) {
+ g_task_return_error (task, g_steal_pointer (&local_error));
+ return;
+ }
+ }
+
+ g_task_return_boolean (task, TRUE);
+}
+
+static gboolean
+gs_plugin_modalias_refine_finish (GsPlugin *plugin,
+ GAsyncResult *result,
+ GError **error)
+{
+ return g_task_propagate_boolean (G_TASK (result), error);
+}
+
+static void
+gs_plugin_modalias_class_init (GsPluginModaliasClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GsPluginClass *plugin_class = GS_PLUGIN_CLASS (klass);
+
+ object_class->dispose = gs_plugin_modalias_dispose;
+
+ plugin_class->refine_async = gs_plugin_modalias_refine_async;
+ plugin_class->refine_finish = gs_plugin_modalias_refine_finish;
+}
+
+GType
+gs_plugin_query_type (void)
+{
+ return GS_TYPE_PLUGIN_MODALIAS;
+}