NetworkManager/libnm/nm-active-connection.c

/* -*- 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 2007 - 2014 Red Hat, Inc.
 * Copyright 2008 Novell, Inc.
 */

#include "nm-default.h"

#include <string.h>

#include "nm-dbus-interface.h"
#include "nm-active-connection.h"
#include "nm-object-private.h"
#include "nm-core-internal.h"
#include "nm-device.h"
#include "nm-device-private.h"
#include "nm-connection.h"
#include "nm-vpn-connection.h"
#include "nm-dbus-helpers.h"
#include "nm-dhcp4-config.h"
#include "nm-dhcp6-config.h"
#include "nm-ip4-config.h"
#include "nm-ip6-config.h"
#include "nm-remote-connection.h"

static GType _nm_active_connection_decide_type (GVariant *value);

G_DEFINE_TYPE_WITH_CODE (NMActiveConnection, nm_active_connection, NM_TYPE_OBJECT,
                         _nm_object_register_type_func (g_define_type_id,
                                                        _nm_active_connection_decide_type,
                                                        NM_DBUS_INTERFACE_ACTIVE_CONNECTION,
                                                        "Vpn");
                         )

#define NM_ACTIVE_CONNECTION_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_ACTIVE_CONNECTION, NMActiveConnectionPrivate))

typedef struct {
	NMRemoteConnection *connection;
	char *id;
	char *uuid;
	char *type;
	char *specific_object_path;
	GPtrArray *devices;
	NMActiveConnectionState state;
	gboolean is_default;
	NMIPConfig *ip4_config;
	NMDhcpConfig *dhcp4_config;
	gboolean is_default6;
	NMIPConfig *ip6_config;
	NMDhcpConfig *dhcp6_config;
	gboolean is_vpn;
	NMDevice *master;
} NMActiveConnectionPrivate;

enum {
	PROP_0,
	PROP_CONNECTION,
	PROP_ID,
	PROP_UUID,
	PROP_TYPE,
	PROP_SPECIFIC_OBJECT_PATH,
	PROP_DEVICES,
	PROP_STATE,
	PROP_DEFAULT,
	PROP_IP4_CONFIG,
	PROP_DHCP4_CONFIG,
	PROP_DEFAULT6,
	PROP_IP6_CONFIG,
	PROP_DHCP6_CONFIG,
	PROP_VPN,
	PROP_MASTER,

	LAST_PROP
};

static GType
_nm_active_connection_decide_type (GVariant *value)
{
	/* @value is the value of the o.fd.NM.ActiveConnection property "VPN" */
	if (g_variant_get_boolean (value))
		return NM_TYPE_VPN_CONNECTION;
	else
		return NM_TYPE_ACTIVE_CONNECTION;
}

/**
 * nm_active_connection_get_connection:
 * @connection: a #NMActiveConnection
 *
 * Gets the #NMRemoteConnection associated with @connection.
 *
 * Returns: (transfer none): the #NMRemoteConnection which this
 * #NMActiveConnection is an active instance of.
 **/
NMRemoteConnection *
nm_active_connection_get_connection (NMActiveConnection *connection)
{
	g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (connection), NULL);

	return NM_ACTIVE_CONNECTION_GET_PRIVATE (connection)->connection;
}

/**
 * nm_active_connection_get_id:
 * @connection: a #NMActiveConnection
 *
 * Gets the #NMConnection's ID.
 *
 * Returns: the ID of the #NMConnection that backs the #NMActiveConnection.
 * This is the internal string used by the connection, and must not be modified.
 **/
const char *
nm_active_connection_get_id (NMActiveConnection *connection)
{
	g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (connection), NULL);

	return NM_ACTIVE_CONNECTION_GET_PRIVATE (connection)->id;
}

/**
 * nm_active_connection_get_uuid:
 * @connection: a #NMActiveConnection
 *
 * Gets the #NMConnection's UUID.
 *
 * Returns: the UUID of the #NMConnection that backs the #NMActiveConnection.
 * This is the internal string used by the connection, and must not be modified.
 **/
const char *
nm_active_connection_get_uuid (NMActiveConnection *connection)
{
	g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (connection), NULL);

	return NM_ACTIVE_CONNECTION_GET_PRIVATE (connection)->uuid;
}

/**
 * nm_active_connection_get_connection_type:
 * @connection: a #NMActiveConnection
 *
 * Gets the #NMConnection's type.
 *
 * Returns: the type of the #NMConnection that backs the #NMActiveConnection.
 * This is the internal string used by the connection, and must not be modified.
 **/
const char *
nm_active_connection_get_connection_type (NMActiveConnection *connection)
{
	g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (connection), NULL);

	return NM_ACTIVE_CONNECTION_GET_PRIVATE (connection)->type;
}

/**
 * nm_active_connection_get_specific_object_path:
 * @connection: a #NMActiveConnection
 *
 * Gets the path of the "specific object" used at activation.
 *
 * Currently there is no single method that will allow you to automatically turn
 * this into an appropriate #NMObject; you need to know what kind of object it
 * is based on other information. (Eg, if @connection corresponds to a Wi-Fi
 * connection, then the specific object will be an #NMAccessPoint, and you can
 * resolve it with nm_device_wifi_get_access_point_by_path().)
 *
 * Returns: the specific object's D-Bus path. This is the internal string used
 * by the connection, and must not be modified.
 **/
const char *
nm_active_connection_get_specific_object_path (NMActiveConnection *connection)
{
	g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (connection), NULL);

	return NM_ACTIVE_CONNECTION_GET_PRIVATE (connection)->specific_object_path;
}

/**
 * nm_active_connection_get_devices:
 * @connection: a #NMActiveConnection
 *
 * Gets the #NMDevices used for the active connections.
 *
 * Returns: (element-type NMDevice): the #GPtrArray containing #NMDevices.
 * This is the internal copy used by the connection, and must not be modified.
 **/
const GPtrArray *
nm_active_connection_get_devices (NMActiveConnection *connection)
{
	g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (connection), NULL);

	return NM_ACTIVE_CONNECTION_GET_PRIVATE (connection)->devices;
}

/**
 * nm_active_connection_get_state:
 * @connection: a #NMActiveConnection
 *
 * Gets the active connection's state.
 *
 * Returns: the state
 **/
NMActiveConnectionState
nm_active_connection_get_state (NMActiveConnection *connection)
{
	g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (connection), NM_ACTIVE_CONNECTION_STATE_UNKNOWN);

	return NM_ACTIVE_CONNECTION_GET_PRIVATE (connection)->state;
}

/**
 * nm_active_connection_get_default:
 * @connection: a #NMActiveConnection
 *
 * Whether the active connection is the default IPv4 one (that is, is used for
 * the default IPv4 route and DNS information).
 *
 * Returns: %TRUE if the active connection is the default IPv4 connection
 **/
gboolean
nm_active_connection_get_default (NMActiveConnection *connection)
{
	g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (connection), FALSE);

	return NM_ACTIVE_CONNECTION_GET_PRIVATE (connection)->is_default;
}

/**
 * nm_active_connection_get_ip4_config:
 * @connection: an #NMActiveConnection
 *
 * Gets the current IPv4 #NMIPConfig associated with the #NMActiveConnection.
 *
 * Returns: (transfer none): the IPv4 #NMIPConfig, or %NULL if the connection is
 *   not in the %NM_ACTIVE_CONNECTION_STATE_ACTIVATED state.
 **/
NMIPConfig *
nm_active_connection_get_ip4_config (NMActiveConnection *connection)
{
	g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (connection), NULL);

	return NM_ACTIVE_CONNECTION_GET_PRIVATE (connection)->ip4_config;
}

/**
 * nm_active_connection_get_dhcp4_config:
 * @connection: an #NMActiveConnection
 *
 * Gets the current IPv4 #NMDhcpConfig (if any) associated with the
 * #NMActiveConnection.
 *
 * Returns: (transfer none): the IPv4 #NMDhcpConfig, or %NULL if the connection
 *   does not use DHCP, or is not in the %NM_ACTIVE_CONNECTION_STATE_ACTIVATED
 *   state.
 **/
NMDhcpConfig *
nm_active_connection_get_dhcp4_config (NMActiveConnection *connection)
{
	g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (connection), NULL);

	return NM_ACTIVE_CONNECTION_GET_PRIVATE (connection)->dhcp4_config;
}

/**
 * nm_active_connection_get_default6:
 * @connection: a #NMActiveConnection
 *
 * Whether the active connection is the default IPv6 one (that is, is used for
 * the default IPv6 route and DNS information).
 *
 * Returns: %TRUE if the active connection is the default IPv6 connection
 **/
gboolean
nm_active_connection_get_default6 (NMActiveConnection *connection)
{
	g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (connection), FALSE);

	return NM_ACTIVE_CONNECTION_GET_PRIVATE (connection)->is_default6;
}

/**
 * nm_active_connection_get_ip6_config:
 * @connection: an #NMActiveConnection
 *
 * Gets the current IPv6 #NMIPConfig associated with the #NMActiveConnection.
 *
 * Returns: (transfer none): the IPv6 #NMIPConfig, or %NULL if the connection is
 *   not in the %NM_ACTIVE_CONNECTION_STATE_ACTIVATED state.
 **/
NMIPConfig *
nm_active_connection_get_ip6_config (NMActiveConnection *connection)
{
	g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (connection), NULL);

	return NM_ACTIVE_CONNECTION_GET_PRIVATE (connection)->ip6_config;
}

/**
 * nm_active_connection_get_dhcp6_config:
 * @connection: an #NMActiveConnection
 *
 * Gets the current IPv6 #NMDhcpConfig (if any) associated with the
 * #NMActiveConnection.
 *
 * Returns: (transfer none): the IPv6 #NMDhcpConfig, or %NULL if the connection
 *   does not use DHCPv6, or is not in the %NM_ACTIVE_CONNECTION_STATE_ACTIVATED
 *   state.
 **/
NMDhcpConfig *
nm_active_connection_get_dhcp6_config (NMActiveConnection *connection)
{
	g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (connection), NULL);

	return NM_ACTIVE_CONNECTION_GET_PRIVATE (connection)->dhcp6_config;
}

/**
 * nm_active_connection_get_vpn:
 * @connection: a #NMActiveConnection
 *
 * Whether the active connection is a VPN connection.
 *
 * Returns: %TRUE if the active connection is a VPN connection
 **/
gboolean
nm_active_connection_get_vpn (NMActiveConnection *connection)
{
	g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (connection), FALSE);

	return NM_ACTIVE_CONNECTION_GET_PRIVATE (connection)->is_vpn;
}

/**
 * nm_active_connection_get_master:
 * @connection: a #NMActiveConnection
 *
 * Gets the master #NMDevice of the connection.
 *
 * Returns: (transfer none): the master #NMDevice of the #NMActiveConnection.
 **/
NMDevice *
nm_active_connection_get_master (NMActiveConnection *connection)
{
	g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (connection), NULL);

	return NM_ACTIVE_CONNECTION_GET_PRIVATE (connection)->master;
}

static void
nm_active_connection_init (NMActiveConnection *connection)
{
	NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (connection);

	priv->devices = g_ptr_array_new ();
}

static void
dispose (GObject *object)
{
	NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (object);

	g_clear_pointer (&priv->devices, g_ptr_array_unref);

	g_clear_object (&priv->connection);
	g_clear_object (&priv->master);
	g_clear_object (&priv->ip4_config);
	g_clear_object (&priv->dhcp4_config);
	g_clear_object (&priv->ip6_config);
	g_clear_object (&priv->dhcp6_config);

	G_OBJECT_CLASS (nm_active_connection_parent_class)->dispose (object);
}

static void
finalize (GObject *object)
{
	NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (object);

	g_free (priv->id);
	g_free (priv->uuid);
	g_free (priv->type);
	g_free (priv->specific_object_path);

	G_OBJECT_CLASS (nm_active_connection_parent_class)->finalize (object);
}

static void
get_property (GObject *object,
              guint prop_id,
              GValue *value,
              GParamSpec *pspec)
{
	NMActiveConnection *self = NM_ACTIVE_CONNECTION (object);

	switch (prop_id) {
	case PROP_CONNECTION:
		g_value_set_object (value, nm_active_connection_get_connection (self));
		break;
	case PROP_ID:
		g_value_set_string (value, nm_active_connection_get_id (self));
		break;
	case PROP_UUID:
		g_value_set_string (value, nm_active_connection_get_uuid (self));
		break;
	case PROP_TYPE:
		g_value_set_string (value, nm_active_connection_get_connection_type (self));
		break;
	case PROP_SPECIFIC_OBJECT_PATH:
		g_value_set_string (value, nm_active_connection_get_specific_object_path (self));
		break;
	case PROP_DEVICES:
		g_value_take_boxed (value, _nm_utils_copy_object_array (nm_active_connection_get_devices (self)));
		break;
	case PROP_STATE:
		g_value_set_enum (value, nm_active_connection_get_state (self));
		break;
	case PROP_DEFAULT:
		g_value_set_boolean (value, nm_active_connection_get_default (self));
		break;
	case PROP_IP4_CONFIG:
		g_value_set_object (value, nm_active_connection_get_ip4_config (self));
		break;
	case PROP_DHCP4_CONFIG:
		g_value_set_object (value, nm_active_connection_get_dhcp4_config (self));
		break;
	case PROP_DEFAULT6:
		g_value_set_boolean (value, nm_active_connection_get_default6 (self));
		break;
	case PROP_IP6_CONFIG:
		g_value_set_object (value, nm_active_connection_get_ip6_config (self));
		break;
	case PROP_DHCP6_CONFIG:
		g_value_set_object (value, nm_active_connection_get_dhcp6_config (self));
		break;
	case PROP_VPN:
		g_value_set_boolean (value, nm_active_connection_get_vpn (self));
		break;
	case PROP_MASTER:
		g_value_set_object (value, nm_active_connection_get_master (self));
		break;
	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
		break;
	}
}

static gboolean
demarshal_specific_object_path (NMObject *object, GParamSpec *pspec, GVariant *value, gpointer field)
{
	char **param = (char **) field;

	/* We have to demarshal this manually, because the D-Bus property name
	 * ("SpecificObject"), doesn't match the object property name
	 * ("specific-object-path"). (The name "specific-object" is reserved for
	 * future use as an NMObject-valued property.)
	 */
	if (!g_variant_is_of_type (value, G_VARIANT_TYPE_OBJECT_PATH))
		return FALSE;

	g_free (*param);
	*param = g_variant_dup_string (value, NULL);
	return TRUE;
}

static void
init_dbus (NMObject *object)
{
	NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (object);
	const NMPropertiesInfo property_info[] = {
		{ NM_ACTIVE_CONNECTION_CONNECTION,           &priv->connection, NULL, NM_TYPE_REMOTE_CONNECTION },
		{ NM_ACTIVE_CONNECTION_ID,                   &priv->id },
		{ NM_ACTIVE_CONNECTION_UUID,                 &priv->uuid },
		{ NM_ACTIVE_CONNECTION_TYPE,                 &priv->type },
		{ "specific-object",                         &priv->specific_object_path, demarshal_specific_object_path },
		{ NM_ACTIVE_CONNECTION_DEVICES,              &priv->devices, NULL, NM_TYPE_DEVICE },
		{ NM_ACTIVE_CONNECTION_STATE,                &priv->state },
		{ NM_ACTIVE_CONNECTION_DEFAULT,              &priv->is_default },
		{ NM_ACTIVE_CONNECTION_IP4_CONFIG,           &priv->ip4_config, NULL, NM_TYPE_IP4_CONFIG },
		{ NM_ACTIVE_CONNECTION_DHCP4_CONFIG,         &priv->dhcp4_config, NULL, NM_TYPE_DHCP4_CONFIG },
		{ NM_ACTIVE_CONNECTION_DEFAULT6,             &priv->is_default6 },
		{ NM_ACTIVE_CONNECTION_IP6_CONFIG,           &priv->ip6_config, NULL, NM_TYPE_IP6_CONFIG },
		{ NM_ACTIVE_CONNECTION_DHCP6_CONFIG,         &priv->dhcp6_config, NULL, NM_TYPE_DHCP6_CONFIG },
		{ NM_ACTIVE_CONNECTION_VPN,                  &priv->is_vpn },
		{ NM_ACTIVE_CONNECTION_MASTER,               &priv->master, NULL, NM_TYPE_DEVICE },

		{ NULL },
	};

	NM_OBJECT_CLASS (nm_active_connection_parent_class)->init_dbus (object);

	_nm_object_register_properties (object,
	                                NM_DBUS_INTERFACE_ACTIVE_CONNECTION,
	                                property_info);
}


static void
nm_active_connection_class_init (NMActiveConnectionClass *ap_class)
{
	GObjectClass *object_class = G_OBJECT_CLASS (ap_class);
	NMObjectClass *nm_object_class = NM_OBJECT_CLASS (ap_class);

	g_type_class_add_private (ap_class, sizeof (NMActiveConnectionPrivate));

	_nm_object_class_add_interface (nm_object_class, NM_DBUS_INTERFACE_ACTIVE_CONNECTION);

	/* virtual methods */
	object_class->get_property = get_property;
	object_class->dispose = dispose;
	object_class->finalize = finalize;

	nm_object_class->init_dbus = init_dbus;

	/* properties */

	/**
	 * NMActiveConnection:connection:
	 *
	 * The connection that this is an active instance of.
	 **/
	g_object_class_install_property
		(object_class, PROP_CONNECTION,
		 g_param_spec_object (NM_ACTIVE_CONNECTION_CONNECTION, "", "",
		                      NM_TYPE_REMOTE_CONNECTION,
		                      G_PARAM_READABLE |
		                      G_PARAM_STATIC_STRINGS));

	/**
	 * NMActiveConnection:id:
	 *
	 * The active connection's ID
	 **/
	g_object_class_install_property
		(object_class, PROP_ID,
		 g_param_spec_string (NM_ACTIVE_CONNECTION_ID, "", "",
		                      NULL,
		                      G_PARAM_READABLE |
		                      G_PARAM_STATIC_STRINGS));

	/**
	 * NMActiveConnection:uuid:
	 *
	 * The active connection's UUID
	 **/
	g_object_class_install_property
		(object_class, PROP_UUID,
		 g_param_spec_string (NM_ACTIVE_CONNECTION_UUID, "", "",
		                      NULL,
		                      G_PARAM_READABLE |
		                      G_PARAM_STATIC_STRINGS));

	/**
	 * NMActiveConnection:type:
	 *
	 * The active connection's type
	 **/
	g_object_class_install_property
		(object_class, PROP_TYPE,
		 g_param_spec_string (NM_ACTIVE_CONNECTION_TYPE, "", "",
		                      NULL,
		                      G_PARAM_READABLE |
		                      G_PARAM_STATIC_STRINGS));

	/**
	 * NMActiveConnection:specific-object-path:
	 *
	 * The path to the "specific object" of the active connection; see
	 * nm_active_connection_get_specific_object_path() for more details.
	 **/
	g_object_class_install_property
		(object_class, PROP_SPECIFIC_OBJECT_PATH,
		 g_param_spec_string (NM_ACTIVE_CONNECTION_SPECIFIC_OBJECT_PATH, "", "",
		                      NULL,
		                      G_PARAM_READABLE |
		                      G_PARAM_STATIC_STRINGS));

	/**
	 * NMActiveConnection:devices:
	 *
	 * The devices of the active connection.
	 *
	 * Element-type: NMDevice
	 **/
	g_object_class_install_property
		(object_class, PROP_DEVICES,
		 g_param_spec_boxed (NM_ACTIVE_CONNECTION_DEVICES, "", "",
		                     G_TYPE_PTR_ARRAY,
		                     G_PARAM_READABLE |
		                     G_PARAM_STATIC_STRINGS));

	/**
	 * NMActiveConnection:state:
	 *
	 * The state of the active connection.
	 **/
	g_object_class_install_property
		(object_class, PROP_STATE,
		 g_param_spec_enum (NM_ACTIVE_CONNECTION_STATE, "", "",
		                    NM_TYPE_ACTIVE_CONNECTION_STATE,
		                    NM_ACTIVE_CONNECTION_STATE_UNKNOWN,
		                    G_PARAM_READABLE |
		                    G_PARAM_STATIC_STRINGS));

	/**
	 * NMActiveConnection:default:
	 *
	 * Whether the active connection is the default IPv4 one.
	 **/
	g_object_class_install_property
		(object_class, PROP_DEFAULT,
		 g_param_spec_boolean (NM_ACTIVE_CONNECTION_DEFAULT, "", "",
		                       FALSE,
		                       G_PARAM_READABLE |
		                       G_PARAM_STATIC_STRINGS));

	/**
	 * NMActiveConnection:ip4-config:
	 *
	 * The IPv4 #NMIPConfig of the connection.
	 **/
	g_object_class_install_property
		(object_class, PROP_IP4_CONFIG,
		 g_param_spec_object (NM_ACTIVE_CONNECTION_IP4_CONFIG, "", "",
		                      NM_TYPE_IP_CONFIG,
		                      G_PARAM_READABLE |
		                      G_PARAM_STATIC_STRINGS));

	/**
	 * NMActiveConnection:dhcp4-config:
	 *
	 * The IPv4 #NMDhcpConfig of the connection.
	 **/
	g_object_class_install_property
		(object_class, PROP_DHCP4_CONFIG,
		 g_param_spec_object (NM_ACTIVE_CONNECTION_DHCP4_CONFIG, "", "",
		                      NM_TYPE_DHCP_CONFIG,
		                      G_PARAM_READABLE |
		                      G_PARAM_STATIC_STRINGS));

	/**
	 * NMActiveConnection:default6:
	 *
	 * Whether the active connection is the default IPv6 one.
	 **/
	g_object_class_install_property
		(object_class, PROP_DEFAULT6,
		 g_param_spec_boolean (NM_ACTIVE_CONNECTION_DEFAULT6, "", "",
		                       FALSE,
		                       G_PARAM_READABLE |
		                       G_PARAM_STATIC_STRINGS));

	/**
	 * NMActiveConnection:ip6-config:
	 *
	 * The IPv6 #NMIPConfig of the connection.
	 **/
	g_object_class_install_property
		(object_class, PROP_IP6_CONFIG,
		 g_param_spec_object (NM_ACTIVE_CONNECTION_IP6_CONFIG, "", "",
		                      NM_TYPE_IP_CONFIG,
		                      G_PARAM_READABLE |
		                      G_PARAM_STATIC_STRINGS));

	/**
	 * NMActiveConnection:dhcp6-config:
	 *
	 * The IPv6 #NMDhcpConfig of the connection.
	 **/
	g_object_class_install_property
		(object_class, PROP_DHCP6_CONFIG,
		 g_param_spec_object (NM_ACTIVE_CONNECTION_DHCP6_CONFIG, "", "",
		                      NM_TYPE_DHCP_CONFIG,
		                      G_PARAM_READABLE |
		                      G_PARAM_STATIC_STRINGS));

	/**
	 * NMActiveConnection:vpn:
	 *
	 * Whether the active connection is a VPN connection.
	 **/
	g_object_class_install_property
		(object_class, PROP_VPN,
		 g_param_spec_boolean (NM_ACTIVE_CONNECTION_VPN, "", "",
		                       FALSE,
		                       G_PARAM_READABLE |
		                       G_PARAM_STATIC_STRINGS));

	/**
	 * NMActiveConnection:master:
	 *
	 * The master device if one exists.
	 **/
	g_object_class_install_property
		(object_class, PROP_MASTER,
		 g_param_spec_object (NM_ACTIVE_CONNECTION_MASTER, "", "",
		                      NM_TYPE_DEVICE,
		                      G_PARAM_READABLE |
		                      G_PARAM_STATIC_STRINGS));
}