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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/*
* 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 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 Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*
* Copyright 2013 Red Hat, Inc.
*/
#include "config.h"
#include <string.h>
#include <gio/gio.h>
#include <dbus/dbus.h>
#include <dbus/dbus-glib-lowlevel.h>
#include "nm-dbus-helpers-private.h"
#include "NetworkManager.h"
static dbus_int32_t priv_slot = -1;
static gboolean
_ensure_dbus_data_slot (void)
{
static gsize init_value = 0;
gboolean success = TRUE;
if (g_once_init_enter (&init_value)) {
success = dbus_connection_allocate_data_slot (&priv_slot);
g_once_init_leave (&init_value, 1);
}
return success;
}
DBusGConnection *
_nm_dbus_new_connection (GError **error)
{
DBusGConnection *connection = NULL;
if (!_ensure_dbus_data_slot ()) {
g_set_error (error, DBUS_GERROR, DBUS_GERROR_FAILED, "failed to allocated data slot");
return NULL;
}
#if HAVE_DBUS_GLIB_100
/* If running as root try the private bus first */
if (0 == geteuid ()) {
connection = dbus_g_connection_open ("unix:path=" NMRUNDIR "/private", error);
if (connection) {
DBusConnection *dbus_connection = dbus_g_connection_get_connection (connection);
/* Mark this connection as private */
dbus_connection_set_data (dbus_connection, priv_slot, GUINT_TO_POINTER (TRUE), NULL);
dbus_connection_set_exit_on_disconnect (dbus_connection, FALSE);
return connection;
}
/* Fall back to a bus if for some reason private socket isn't available */
g_clear_error (error);
}
#endif
if (connection == NULL)
connection = dbus_g_bus_get (DBUS_BUS_SYSTEM, error);
return connection;
}
gboolean
_nm_dbus_is_connection_private (DBusGConnection *connection)
{
if (!_ensure_dbus_data_slot ())
return FALSE;
return !!dbus_connection_get_data (dbus_g_connection_get_connection (connection), priv_slot);
}
DBusGProxy *
_nm_dbus_new_proxy_for_connection (DBusGConnection *connection,
const char *path,
const char *interface)
{
/* Private connections can't use dbus_g_proxy_new_for_name() or
* dbus_g_proxy_new_for_name_owner() because peer-to-peer connections don't
* have either a bus daemon or name owners, both of which those functions
* require.
*/
if (_nm_dbus_is_connection_private (connection))
return dbus_g_proxy_new_for_peer (connection, path, interface);
return dbus_g_proxy_new_for_name (connection, NM_DBUS_SERVICE, path, interface);
}
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