client: add "dpp <wlan> show" command

This will show the newly added DPP properties

client/dpp.c

@@ -34,8 +34,111 @@
 #include "client/device.h"
 #include "client/display.h"
 
+struct dpp {
+	bool started;
+	char *role;
+	char *uri;
+};
+
+static void *dpp_create(void)
+{
+	return l_new(struct dpp, 1);
+}
+
+static void dpp_destroy(void *data)
+{
+	struct dpp *dpp = data;
+
+	if (dpp->role)
+		l_free(dpp->role);
+	if (dpp->uri)
+		l_free(dpp->uri);
+
+	l_free(dpp);
+}
+
+static void update_started(void *data, struct l_dbus_message_iter *variant)
+{
+	struct dpp *dpp = data;
+	bool value;
+
+	if (!l_dbus_message_iter_get_variant(variant, "b", &value)) {
+		dpp->started = false;
+		return;
+	}
+
+	dpp->started = value;
+}
+
+static const char *started_tostr(const void *data)
+{
+	const struct dpp *dpp = data;
+
+	return dpp->started ? "yes" : "no";
+}
+
+static void update_role(void *data, struct l_dbus_message_iter *variant)
+{
+	struct dpp *dpp = data;
+	const char *value;
+
+	if (dpp->role)
+		l_free(dpp->role);
+
+	if (!l_dbus_message_iter_get_variant(variant, "s", &value)) {
+		dpp->role = NULL;
+		return;
+	}
+
+	dpp->role = l_strdup(value);
+}
+
+static const char *role_tostr(const void *data)
+{
+	const struct dpp *dpp = data;
+
+	return dpp->role;
+}
+
+static void update_uri(void *data, struct l_dbus_message_iter *variant)
+{
+	struct dpp *dpp = data;
+	const char *value;
+
+	if (dpp->uri)
+		l_free(dpp->uri);
+
+	if (!l_dbus_message_iter_get_variant(variant, "s", &value)) {
+		dpp->uri = NULL;
+		return;
+	}
+
+	dpp->uri = l_strdup(value);
+}
+
+static const char *uri_tostr(const void *data)
+{
+	const struct dpp *dpp = data;
+
+	return dpp->uri;
+}
+
+static const struct proxy_interface_property dpp_properties[] = {
+	{ "Started",	"b", update_started,	started_tostr },
+	{ "Role",	"s", update_role, 	role_tostr },
+	{ "URI",	"s", update_uri,	uri_tostr },
+	{ }
+};
+
+static const struct proxy_interface_type_ops dpp_ops = {
+	.create = dpp_create,
+	.destroy = dpp_destroy,
+};
+
 static struct proxy_interface_type dpp_interface_type = {
 	.interface = IWD_DPP_INTERFACE,
+	.properties = dpp_properties,
+	.ops = &dpp_ops,
 };
 
 static void check_errors_method_callback(struct l_dbus_message *message,
@@ -174,6 +277,19 @@ static enum cmd_status cmd_stop(const char *device_name,
 	return CMD_STATUS_TRIGGERED;
 }
 
+static enum cmd_status cmd_show(const char *device_name,
+						char **argv, int argc)
+{
+	const struct proxy_interface *proxy =
+			device_proxy_find(device_name, IWD_DPP_INTERFACE);
+	char *caption = l_strdup_printf("%s: %s", "DPP", device_name);
+
+	proxy_properties_display(proxy, caption, MARGIN, 20, 47);
+	l_free(caption);
+
+	return CMD_STATUS_DONE;
+}
+
 static const struct command dpp_commands[] = {
 	{ NULL, "list", NULL, cmd_list, "List DPP-capable devices", true },
 	{ "<wlan>", "start-enrollee", NULL, cmd_start_enrollee,
@@ -181,6 +297,7 @@ static const struct command dpp_commands[] = {
 	{ "<wlan>", "start-configurator", NULL, cmd_start_configurator,
 							"Starts a DPP Configurator" },
 	{ "<wlan>", "stop", NULL, cmd_stop, "Aborts DPP operations" },
+	{ "<wlan>", "show", NULL, cmd_show, "Shows the DPP state" },
 	{ }
 };