examples: python: add an D-Bus example creating and activating a bond

examples/python/dbus/Makefile.am

@@ -12,4 +12,5 @@ EXTRA_DIST = \
 	list-devices.py \
 	update-ip4-method.py \
 	is-wwan-default.py \
-	wifi-hotspot.py
+	wifi-hotspot.py \
+	create-bond.py

examples/python/dbus/create-bond.py

@@ -0,0 +1,114 @@
+#!/usr/bin/env python
+#
+# 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.
+#
+# Copyright (C) 2015 Red Hat, Inc.
+#
+
+#
+# This example configures a Bond from ethernet devices and activates it
+#
+# NetworkManager D-Bus API:
+# https://developer.gnome.org/NetworkManager/1.0/spec.html
+#
+
+import dbus, sys, uuid
+from dbus.mainloop.glib import DBusGMainLoop
+import gobject
+
+DBusGMainLoop(set_as_default=True)
+
+def add_connection(con):
+    bus = dbus.SystemBus()
+    proxy = bus.get_object("org.freedesktop.NetworkManager", "/org/freedesktop/NetworkManager/Settings")
+    settings = dbus.Interface(proxy, "org.freedesktop.NetworkManager.Settings")
+    return settings.AddConnection(con)
+
+def create_bond(bond_name):
+    bond_opts = dbus.Dictionary({'mode': '4'})
+    s_bond = dbus.Dictionary({'options': bond_opts})
+    s_con = dbus.Dictionary({
+        'type': 'bond',
+        'uuid': str(uuid.uuid4()),
+        'id': bond_name,
+        'interface-name': bond_name,
+        'autoconnect': False,
+        'autoconnect-slaves': 1})
+    s_ip4 = dbus.Dictionary({'method': 'auto'})
+    s_ip6 = dbus.Dictionary({'method': 'ignore'})
+
+    con = dbus.Dictionary({
+        'bond': s_bond,
+        'connection': s_con,
+        'ipv4': s_ip4,
+        'ipv6': s_ip6})
+    print "Creating bond connection: %s" % bond_name
+    return add_connection(con)
+
+def create_slave(device, master):
+    slave_name = 'bond-' + master + '-slave-' + device
+    s_wired = dbus.Dictionary({'duplex': 'full'})
+    s_con = dbus.Dictionary({
+        'type': '802-3-ethernet',
+        'uuid': str(uuid.uuid4()),
+        'id': slave_name,
+        'interface-name': device,
+        'autoconnect': False,
+        'master': master,
+        'slave-type': 'bond'})
+
+    con = dbus.Dictionary({
+        '802-3-ethernet': s_wired,
+        'connection': s_con})
+    print "Creating slave connection: %s" % slave_name
+    add_connection(con)
+
+def usage():
+    print "Usage: %s <bond_name> <ifname1> ..." % sys.argv[0]
+    sys.exit(0)
+
+
+if len(sys.argv) < 3:
+    usage()
+
+# Create bond master and slave connections
+bond_name = sys.argv[1]
+bond_path = create_bond(bond_name)
+for ifname in sys.argv[2:]:
+    create_slave(ifname, bond_name)
+
+# Activate the bond
+bus = dbus.SystemBus()
+proxy = bus.get_object("org.freedesktop.NetworkManager", "/org/freedesktop/NetworkManager")
+manager = dbus.Interface(proxy, "org.freedesktop.NetworkManager")
+ac = manager.ActivateConnection(bond_path, "/", "/")
+print "Activating bond: %s (%s)" % (bond_name, ac)
+
+# Monitor the active bond connection
+loop = gobject.MainLoop()
+def properties_changed(props):
+    if 'State' in props:
+        if props['State'] == 2:
+            print "Succesfully connected"
+            loop.quit()
+        if props['State'] == 3 or props['State'] == 4:
+            print "Bond activation failed"
+            loop.quit()
+
+obj = bus.get_object("org.freedesktop.NetworkManager", ac)
+iface = dbus.Interface(obj, "org.freedesktop.NetworkManager.Connection.Active")
+iface.connect_to_signal("PropertiesChanged", properties_changed)
+
+loop.run()