#!/usr/bin/env ruby

# SPDX-License-Identifier: GPL-2.0+

#

# Copyright (C) 2011 Red Hat, Inc.

#

require 'dbus'

require 'ipaddr'

#

# This example adds a new ethernet connection via Addconnection() D-Bus call.

# It also shows how to specify D-Bus signature for properties like "addresses"

# and "clone-mac-address".

#

# This uses the old, backwards-compatible settings properties. The new 1.0

# properties (eg, 'address-data' rather than 'addresses') would make this simpler;

# see the python add-connection.py and add-connection-compat.py examples for

# details

#

# Configuration settings are described here:

# https://developer.gnome.org/NetworkManager/1.0/ref-settings.html

#

# Helper functions

def ip_to_int(ip_addr)

  return IPAddr.new(ip_addr).hton.unpack('L').first

end

def rand_hex_3(l)

  "%0#{l}x" % rand(1 << l*4)

end

def rand_uuid

  [8,4,4,4,12].map {|n| rand_hex_3(n)}.join('-')

end

# Create new connection settings

s_con = {

  "type" => "802-3-ethernet",

  "uuid"=> rand_uuid,

  "id" => "__MyConnection__"

}

s_wired = { "cloned-mac-address" => ["ay", [0x00, 0x22, 0x68, 0x01, 0x02, 0x03]]}

ip1 = ip_to_int("192.168.1.12")

ip2 = ip_to_int("192.168.1.13")

gw1 = ip_to_int("192.168.1.1")

ip3 = ip_to_int("10.0.2.5")

gw2 = ip_to_int("10.0.2.254")

dns1 = ip_to_int("8.8.8.8")

dns2 = ip_to_int("8.8.4.4")

s_ip4 = {

  "addresses"=> ["aau", [[ip1, 24, gw1], [ip2, 24, gw1], [ip3, 24, gw2]]],

  "method"=>["s", "manual"],

  "dns"=> ["au", [dns1, dns2]]

}

s_ip6 = {"method" => "ignore"}

con = {

  "802-3-ethernet" => s_wired,

  "connection" => s_con,

  "ipv4" => s_ip4,

  "ipv6" => s_ip6

}

system_bus = DBus::SystemBus.instance

nm = system_bus.service("org.freedesktop.NetworkManager").object("/org/freedesktop/NetworkManager/Settings")

nm.introspect

settings_iface = nm["org.freedesktop.NetworkManager.Settings"]

ret = settings_iface.AddConnection(con)

puts "New connection added: #{ret.first}"