client: Print daemon information at startup

Makefile.am

@@ -293,7 +293,9 @@ client_iwctl_SOURCES = client/main.c \
 			client/network.h client/network.c \
 			client/properties.h client/properties.c \
 			client/wsc.c client/station.c \
-			client/diagnostic.c client/diagnostic.h
+			client/diagnostic.c client/diagnostic.h \
+			client/daemon.c client/daemon.h
+
 client_iwctl_LDADD = $(ell_ldadd) $(READLINE_LIBS)
 
 if MANUAL_PAGES

client/daemon.c

@@ -0,0 +1,129 @@
+/*
+ *
+ *  Wireless daemon for Linux
+ *
+ *  Copyright (C) 2021  Intel Corporation. All rights reserved.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <errno.h>
+#include <ell/ell.h>
+#include <unistd.h>
+
+#include "client/dbus-proxy.h"
+#include "client/display.h"
+#include "client/daemon.h"
+
+static bool netconfig_enabled;
+
+#define IWD_DAEMON_PATH "/net/connman/iwd"
+
+int daemon_netconfig_enabled()
+{
+	const struct proxy_interface *proxy =
+		proxy_interface_find(IWD_DAEMON_INTERFACE, IWD_DAEMON_PATH);
+
+	if (!proxy)
+		return -ENOENT;
+
+	return netconfig_enabled;
+}
+
+static void get_info_callback(struct l_dbus_message *message, void *user_data)
+{
+	struct l_dbus_message_iter iter;
+	struct l_dbus_message_iter variant;
+	const char *key;
+
+	if (dbus_message_has_error(message))
+		return;
+
+	if (!l_dbus_message_get_arguments(message, "a{sv}", &iter)) {
+		l_error("Failed to parse GetInfo message");
+		return;
+	}
+
+	while (l_dbus_message_iter_next_entry(&iter, &key, &variant)) {
+		if (!strcmp(key, "NetworkConfigurationEnabled") &&
+				l_dbus_message_iter_get_variant(&variant, "b",
+							&netconfig_enabled))
+			display("%s: %s\n", key,
+				netconfig_enabled ? "enabled" : "disabled");
+		else if (!strcmp(key, "Version") ||
+					!strcmp(key, "StateDirectory")) {
+			const char *sval;
+
+			if (!l_dbus_message_iter_get_variant(&variant, "s",
+								&sval))
+				continue;
+
+			display("%s: %s\n", key, sval);
+		}
+	}
+}
+
+static bool daemon_get_info(void)
+{
+	const struct proxy_interface *proxy =
+		proxy_interface_find(IWD_DAEMON_INTERFACE, IWD_DAEMON_PATH);
+
+	if (!proxy)
+		return false;
+
+	proxy_interface_method_call(proxy, "GetInfo", "", get_info_callback);
+
+	return true;
+}
+
+static void *daemon_create(void)
+{
+	daemon_get_info();
+	return NULL;
+}
+
+static void daemon_destroy(void *data)
+{
+}
+
+static const struct proxy_interface_type_ops daemon_ops = {
+	.create = daemon_create,
+	.destroy = daemon_destroy,
+};
+
+static struct proxy_interface_type daemon_interface_type = {
+	.interface = IWD_DAEMON_INTERFACE,
+	.ops = &daemon_ops,
+};
+
+static int daemon_interface_init(void)
+{
+	proxy_interface_type_register(&daemon_interface_type);
+
+	return 0;
+}
+
+static void daemon_interface_exit(void)
+{
+	proxy_interface_type_unregister(&daemon_interface_type);
+}
+
+INTERFACE_TYPE(daemon_interface_type, daemon_interface_init,
+						daemon_interface_exit)

client/daemon.h

@@ -0,0 +1,23 @@
+/*
+ *
+ *  Wireless daemon for Linux
+ *
+ *  Copyright (C) 2021  Intel Corporation. All rights reserved.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+int daemon_netconfig_enabled(void);

client/dbus-proxy.h

@@ -35,6 +35,7 @@ struct proxy_interface;
 #define IWD_STATION_INTERFACE            "net.connman.iwd.Station"
 #define IWD_STATION_DIAGNOSTIC_INTERFACE "net.connman.iwd.StationDiagnostic"
 #define IWD_AP_DIAGNOSTIC_INTERFACE      "net.connman.iwd.AccessPointDiagnostic"
+#define IWD_DAEMON_INTERFACE             "net.connman.iwd.Daemon"
 
 typedef bool (*proxy_property_match_func_t) (const void *a, const void *b);