On Monday 14 of February 2011 05:52:16 Anurup Raveendran wrote: > i'm trying to establish a wireless network connection using the DBUS > API but i have failed miserably. i have attached the code that I'm > using. > > > Regards,
Instead 'failed miserably' you should say what is the real problem ;) And it is that the segmentation fault happens due to bad types of s_wireless properties. SSID is not string but a byte array (it can generaly contain 0) and the mode should be "adhoc" or "infrastructure". See corrected example in the attachment. Jirka
/* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * (C) Copyright 2011 Red Hat, Inc. */ /* * The example shows how to call AddConnection() D-Bus method to add * a connection to system settings service. It uses dbus-glib and libnm-util * libraries. * * Compile with: * gcc -Wall `pkg-config --libs --cflags glib-2.0 dbus-glib-1 libnm-util` add-wireless-connection-glib.c -o add-wireless-connection-glib */ #include <glib.h> #include <dbus/dbus-glib.h> #include <nm-connection.h> #include <nm-setting-connection.h> #include <nm-setting-wireless.h> #include <nm-setting-ip4-config.h> #include <NetworkManager.h> #include <nm-utils.h> #define DBUS_TYPE_G_MAP_OF_VARIANT (dbus_g_type_get_map ("GHashTable", G_TYPE_STRING, G_TYPE_VALUE)) #define DBUS_TYPE_G_MAP_OF_MAP_OF_VARIANT (dbus_g_type_get_map ("GHashTable", G_TYPE_STRING, DBUS_TYPE_G_MAP_OF_VARIANT)) static void add_connection (DBusGProxy *proxy, const char *con_name) { NMConnection *connection; NMSettingConnection *s_con; NMSettingWireless *s_wireless; NMSettingIP4Config *s_ip4; char *uuid; GHashTable *hash; GByteArray *ssid; const unsigned char ssid_data[] = { 'T', 'e', 's', 't' }; GError *error = NULL; /* Create a new connection object */ connection = (NMConnection *) nm_connection_new (); /* Build up the 'connection' Setting */ s_con = (NMSettingConnection *) nm_setting_connection_new (); uuid = nm_utils_uuid_generate (); g_object_set (G_OBJECT (s_con), NM_SETTING_CONNECTION_UUID, uuid, NM_SETTING_CONNECTION_ID, con_name, NM_SETTING_CONNECTION_TYPE, "802-11-wireless", NULL); g_free (uuid); nm_connection_add_setting (connection, NM_SETTING (s_con)); /* Build up the 'wireless' Setting */ s_wireless = (NMSettingWireless *) nm_setting_wireless_new (); nm_connection_add_setting (connection, NM_SETTING (s_wireless)); ssid = g_byte_array_sized_new (sizeof (ssid_data)); g_byte_array_append (ssid, ssid_data, sizeof (ssid_data)); g_object_set(s_wireless, NM_SETTING_WIRELESS_SSID, ssid, NULL); g_object_set(s_wireless, NM_SETTING_WIRELESS_MODE, "adhoc", NULL); g_byte_array_free (ssid, TRUE); /* Build up the 'ipv4' Setting */ s_ip4 = (NMSettingIP4Config *) nm_setting_ip4_config_new (); g_object_set (G_OBJECT (s_ip4), NM_SETTING_IP4_CONFIG_METHOD, NM_SETTING_IP4_CONFIG_METHOD_AUTO, NULL); nm_connection_add_setting (connection, NM_SETTING (s_ip4)); hash = nm_connection_to_hash (connection); /* Call AddConnection with the hash as argument */ dbus_g_proxy_call (proxy, "AddConnection", &error, DBUS_TYPE_G_MAP_OF_MAP_OF_VARIANT, hash, G_TYPE_INVALID); g_hash_table_destroy (hash); g_object_unref (connection); } int main (int argc, char *argv[]) { DBusGConnection *bus; DBusGProxy *proxy; /* Initialize GType system */ g_type_init (); /* Get system bus */ bus = dbus_g_bus_get (DBUS_BUS_SYSTEM, NULL); /* Create a D-Bus proxy; NM_DBUS_* defined in NetworkManager.h */ proxy = dbus_g_proxy_new_for_name (bus, NM_DBUS_SERVICE_SYSTEM_SETTINGS, NM_DBUS_PATH_SETTINGS, NM_DBUS_IFACE_SETTINGS); /* Add a connection */ add_connection (proxy, "__Test connection__"); g_object_unref (proxy); dbus_g_connection_unref (bus); return 0; }
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