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callouts: port nm-avahi-autoipd.action to GDBus

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This commit is contained in:
Dan Winship 2014-09-06 12:10:24 -04:00
parent b99b632b47
commit 4fab71b466
1 changed files with 62 additions and 82 deletions
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144
callouts/nm-avahi-autoipd-action.c
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@ -15,87 +15,48 @@
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Copyright (C) 2008 Red Hat, Inc.
* Copyright 2008, 2014 Red Hat, Inc.
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include <dbus/dbus.h>
#include <dbus/dbus-glib-lowlevel.h>
#include <dbus/dbus-glib.h>
#include <gio/gio.h>
#define NM_AVAHI_AUTOIPD_DBUS_SERVICE "org.freedesktop.nm_avahi_autoipd"
#define NM_AVAHI_AUTOIPD_DBUS_INTERFACE "org.freedesktop.nm_avahi_autoipd"
static DBusConnection *
dbus_init (void)
static void
on_name_acquired (GDBusConnection *connection,
const gchar *name,
gpointer loop)
{
DBusConnection * connection;
DBusError error;
int ret;
g_main_loop_quit (loop);
}
dbus_connection_set_change_sigpipe (TRUE);
dbus_error_init (&error);
connection = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
if (dbus_error_is_set (&error)) {
fprintf (stderr, "Error: could not get the system bus. Make sure "
"the message bus daemon is running! Message: (%s) %s\n",
error.name,
error.message);
goto error;
}
dbus_connection_set_exit_on_disconnect (connection, FALSE);
dbus_error_init (&error);
ret = dbus_bus_request_name (connection,
NM_AVAHI_AUTOIPD_DBUS_SERVICE,
DBUS_NAME_FLAG_DO_NOT_QUEUE,
&error);
if (dbus_error_is_set (&error)) {
fprintf (stderr, "Error: Could not acquire the NM DHCP client service. "
"Message: (%s) %s\n",
error.name,
error.message);
goto error;
}
if (ret != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
fprintf (stderr, "Error: Could not acquire the NM DHCP client service "
"as it is already taken. Return: %d\n",
ret);
goto error;
}
return connection;
error:
if (dbus_error_is_set (&error))
dbus_error_free (&error);
if (connection)
dbus_connection_unref (connection);
return NULL;
static void
on_name_lost (GDBusConnection *connection,
const gchar *name,
gpointer user_data)
{
g_printerr ("Error: Could not acquire the NM autoipd service.");
exit (1);
}
int
main (int argc, char *argv[])
{
DBusConnection *connection;
DBusMessage *message;
dbus_bool_t result;
GDBusConnection *connection;
char *event, *iface, *address;
GMainLoop *loop;
GError *error = NULL;
#if !GLIB_CHECK_VERSION (2, 35, 0)
g_type_init ();
#endif
if (argc != 4) {
fprintf (stderr, "Error: expected 3 arguments (event, interface, address).\n");
g_printerr ("Error: expected 3 arguments (event, interface, address).\n");
exit (1);
}
@ -104,41 +65,60 @@ main (int argc, char *argv[])
address = argv[3] ? argv[3] : "";
if (!event || !iface || !strlen (event) || !strlen (iface)) {
fprintf (stderr, "Error: unexpected arguments received from avahi-autoipd.\n");
g_printerr ("Error: unexpected arguments received from avahi-autoipd.\n");
exit (1);
}
/* Get a connection to the system bus */
connection = dbus_init ();
if (connection == NULL)
exit (1);
connection = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, &error);
if (error) {
char *remote_error = g_dbus_error_get_remote_error (error);
message = dbus_message_new_signal ("/", NM_AVAHI_AUTOIPD_DBUS_INTERFACE, "Event");
if (message == NULL) {
fprintf (stderr, "Error: not enough memory to send autoip Event signal.\n");
exit (1);
g_dbus_error_strip_remote_error (error);
g_printerr ("Error: could not get the system bus. Make sure "
"the message bus daemon is running! Message: (%s) %s\n",
remote_error, error->message);
g_free (remote_error);
g_error_free (error);
return 1;
}
if (!dbus_message_append_args (message,
DBUS_TYPE_STRING, &event,
DBUS_TYPE_STRING, &iface,
DBUS_TYPE_STRING, &address,
DBUS_TYPE_INVALID)) {
fprintf (stderr, "Error: failed to construct autoip Event signal.\n");
exit (1);
/* Acquire the bus name */
loop = g_main_loop_new (NULL, FALSE);
g_bus_own_name_on_connection (connection,
NM_AVAHI_AUTOIPD_DBUS_SERVICE,
0,
on_name_acquired,
on_name_lost,
loop, NULL);
g_main_loop_run (loop);
g_main_loop_unref (loop);
/* Send the signal */
if (!g_dbus_connection_emit_signal (connection,
NULL,
"/",
NM_AVAHI_AUTOIPD_DBUS_INTERFACE,
"Event",
g_variant_new ("(sss)",
event,
iface,
address),
&error)) {
g_dbus_error_strip_remote_error (error);
g_printerr ("Error: Could not send autoipd Event signal: %s\n", error->message);
g_error_free (error);
return 1;
}
/* queue the message */
result = dbus_connection_send (connection, message, NULL);
if (!result) {
fprintf (stderr, "Error: could not send send autoip Event signal.\n");
exit (1);
if (!g_dbus_connection_flush_sync (connection, NULL, &error)) {
g_dbus_error_strip_remote_error (error);
g_printerr ("Error: Could not flush D-Bus connection: %s\n", error->message);
g_error_free (error);
return 1;
}
dbus_message_unref (message);
/* Send out the message */
dbus_connection_flush (connection);
g_object_unref (connection);
return 0;
}