подключение к WiFi с использованием nm-glib

gboolean wi_fi_dev_activate_connection(const gchar * ssid, const gchar * key)
{
   
    //получаем устройство
    NMDevice *device = get_device_by_type(NM_WIFI_DEVICE);
   
    if (device == NULL) {
      printf("Cannot get available device!\n");
      return FALSE;
    }

    //получаем точку доступа по ssid
    NMAccessPoint* ap = wifi_device_get_ap_by_ssid(device, ssid);
  
    if (ap == NULL) {
      printf("Cannot get acces point!\n");
      return FALSE;
    }

    //создаем подключение
    NMConnection *connection = nm_connection_new();

    //натраиваем его...


    //общие настройки
    NMSettingConnection *s_connection =
                       (NMSettingConnection *) nm_setting_connection_new();
    char *uuid = nm_utils_uuid_generate();
    g_object_set(s_connection,
    NM_SETTING_CONNECTION_TYPE, NM_SETTING_WIRELESS_SETTING_NAME,
    NM_SETTING_CONNECTION_UUID, uuid, "autoconnect", TRUE, "id",
                        ssid, "name", "wireless", NULL);
    nm_connection_add_setting(connection, (NMSetting *) s_connection);
    g_free(uuid);

     //настройки беспроводного
     NMSettingWireless *s_wireless =
                        (NMSettingWireless *) nm_setting_wireless_new();
    GByteArray *_ssid;
    gint len = strlen(ssid);
    _ssid = g_byte_array_sized_new(len);
    g_byte_array_append(_ssid, (const guint8 *) ssid, len);
    g_object_set(s_wireless, NM_SETTING_WIRELESS_SSID, _ssid,
    NM_SETTING_WIRELESS_MODE, NM_SETTING_WIRELESS_MODE_INFRA, NULL);
    g_byte_array_free(_ssid, TRUE);
    nm_connection_add_setting(connection, (NMSetting *) s_wireless);

    //настройки безопасности 
    NMSettingWirelessSecurity *s_wireless_security =
                        (NMSettingWirelessSecurity *) nm_setting_wireless_security_new();
    g_object_set(s_wireless_security, "wep-key0", key, "key-mgmt","ieee8021x", NULL);
    nm_connection_add_setting(connection,(NMSetting *) s_wireless_security);


    //настройки IP4(6)
    NMSettingIP4Config *s_ip4 =
                        (NMSettingIP4Config *) nm_setting_ip4_config_new();
    g_object_set(s_ip4, NM_SETTING_IP4_CONFIG_METHOD,
    NM_SETTING_IP4_CONFIG_METHOD_AUTO, NULL);
    nm_connection_add_setting(connection, (NMSetting *) s_ip4);

    NMSettingIP6Config *s_ip6 =
                        (NMSettingIP6Config *) nm_setting_ip6_config_new();
    g_object_set(s_ip6, NM_SETTING_IP6_CONFIG_METHOD,
    NM_SETTING_IP6_CONFIG_METHOD_AUTO, NULL);
    nm_connection_add_setting(connection, (NMSetting *) s_ip6);


 
    //Подключаемся...
    nm_client_activate_connection(client, 
                                  connection, 
                                  device, 
                                  ap ? nm_object_get_path(NM_OBJECT(ap)) : NULL,
                                  activate_new_cb, NULL);

    return TRUE;
}