115 lines
3.2 KiB
C
115 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright 2012 Red Hat, Inc.
|
|
*/
|
|
|
|
/*
|
|
* This example monitors NM state via D-Bus "StateChanged" signal on
|
|
* "org.freedesktop.NetworkManager" object.
|
|
* It uses GDBus and the libnm headers.
|
|
|
|
* You don't need to have the NetworkManager devel packages installed. You can just
|
|
* grab nm-dbus-interface.h and put it in the path.
|
|
*
|
|
* Standalone compilation:
|
|
* gcc -Wall monitor-nm-state-gdbus.c -o monitor-nm-state-gdbus `pkg-config --cflags --libs libnm`
|
|
*/
|
|
|
|
#include <gio/gio.h>
|
|
#include <string.h>
|
|
#include <nm-dbus-interface.h>
|
|
|
|
static const char *
|
|
nm_state_to_string (NMState state)
|
|
{
|
|
switch (state) {
|
|
case NM_STATE_ASLEEP:
|
|
return "asleep";
|
|
case NM_STATE_CONNECTING:
|
|
return "connecting";
|
|
case NM_STATE_CONNECTED_LOCAL:
|
|
return "connected (local only)";
|
|
case NM_STATE_CONNECTED_SITE:
|
|
return "connected (site only)";
|
|
case NM_STATE_CONNECTED_GLOBAL:
|
|
return "connected";
|
|
case NM_STATE_DISCONNECTING:
|
|
return "disconnecting";
|
|
case NM_STATE_DISCONNECTED:
|
|
return "disconnected";
|
|
case NM_STATE_UNKNOWN:
|
|
default:
|
|
return "unknown";
|
|
}
|
|
}
|
|
|
|
static void
|
|
on_signal (GDBusProxy *proxy,
|
|
char *sender_name,
|
|
char *signal_name,
|
|
GVariant *parameters,
|
|
gpointer user_data)
|
|
{
|
|
guint32 new_state;
|
|
|
|
/* Print all signals */
|
|
//char *parameters_str;
|
|
//parameters_str = g_variant_print (parameters, TRUE);
|
|
//g_print (" *** Received Signal: %s: %s\n", signal_name, parameters_str);
|
|
//g_free (parameters_str);
|
|
|
|
/* We are only interested in "StateChanged" signal */
|
|
if (strcmp (signal_name, "StateChanged") == 0) {
|
|
GVariant *tmp = g_variant_get_child_value (parameters, 0);
|
|
new_state = g_variant_get_uint32 (tmp);
|
|
g_variant_unref (tmp);
|
|
g_print ("NetworkManager state is: (%d) %s\n", new_state, nm_state_to_string ((NMState) new_state));
|
|
}
|
|
}
|
|
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
GMainLoop *loop;
|
|
GError *error = NULL;
|
|
GDBusProxyFlags flags;
|
|
GDBusProxy *proxy;
|
|
|
|
/* Monitor 'StateChanged' signal on 'org.freedesktop.NetworkManager' interface */
|
|
g_print ("Monitor NetworkManager's state\n");
|
|
g_print ("==============================\n");
|
|
|
|
flags = G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES | G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START;
|
|
proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM,
|
|
flags,
|
|
NULL, /* GDBusInterfaceInfo */
|
|
"org.freedesktop.NetworkManager",
|
|
"/org/freedesktop/NetworkManager",
|
|
"org.freedesktop.NetworkManager",
|
|
NULL, /* GCancellable */
|
|
&error);
|
|
|
|
if (proxy == NULL)
|
|
{
|
|
g_dbus_error_strip_remote_error (error);
|
|
g_printerr ("Error creating D-Bus proxy: %s\n", error->message);
|
|
g_error_free (error);
|
|
return -1;
|
|
}
|
|
|
|
/* Connect to g-signal to receive signals from proxy (remote object) */
|
|
g_signal_connect (proxy,
|
|
"g-signal",
|
|
G_CALLBACK (on_signal),
|
|
NULL);
|
|
|
|
/* Run main loop */
|
|
loop = g_main_loop_new (NULL, FALSE);
|
|
g_main_loop_run (loop);
|
|
|
|
g_object_unref (proxy);
|
|
|
|
return 0;
|
|
}
|
|
|