NetworkManager/libnm-core/nm-setting-bridge.c
2016-03-30 12:03:36 +02:00

599 lines
17 KiB
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 2011 - 2013 Red Hat, Inc.
*/
#include "nm-default.h"
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include "nm-setting-bridge.h"
#include "nm-connection-private.h"
#include "nm-utils.h"
#include "nm-utils-private.h"
/**
* SECTION:nm-setting-bridge
* @short_description: Describes connection properties for bridges
*
* The #NMSettingBridge object is a #NMSetting subclass that describes properties
* necessary for bridging connections.
**/
G_DEFINE_TYPE_WITH_CODE (NMSettingBridge, nm_setting_bridge, NM_TYPE_SETTING,
_nm_register_setting (BRIDGE, 1))
NM_SETTING_REGISTER_TYPE (NM_TYPE_SETTING_BRIDGE)
#define NM_SETTING_BRIDGE_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_SETTING_BRIDGE, NMSettingBridgePrivate))
typedef struct {
char * mac_address;
gboolean stp;
guint16 priority;
guint16 forward_delay;
guint16 hello_time;
guint16 max_age;
guint32 ageing_time;
gboolean multicast_snooping;
} NMSettingBridgePrivate;
enum {
PROP_0,
PROP_MAC_ADDRESS,
PROP_STP,
PROP_PRIORITY,
PROP_FORWARD_DELAY,
PROP_HELLO_TIME,
PROP_MAX_AGE,
PROP_AGEING_TIME,
PROP_MULTICAST_SNOOPING,
LAST_PROP
};
/**
* nm_setting_bridge_new:
*
* Creates a new #NMSettingBridge object with default values.
*
* Returns: (transfer full): the new empty #NMSettingBridge object
**/
NMSetting *
nm_setting_bridge_new (void)
{
return (NMSetting *) g_object_new (NM_TYPE_SETTING_BRIDGE, NULL);
}
/**
* nm_setting_bridge_get_mac_address:
* @setting: the #NMSettingBridge
*
* Returns: the #NMSettingBridge:mac-address property of the setting
**/
const char *
nm_setting_bridge_get_mac_address (NMSettingBridge *setting)
{
g_return_val_if_fail (NM_IS_SETTING_BRIDGE (setting), NULL);
return NM_SETTING_BRIDGE_GET_PRIVATE (setting)->mac_address;
}
/**
* nm_setting_bridge_get_stp:
* @setting: the #NMSettingBridge
*
* Returns: the #NMSettingBridge:stp property of the setting
**/
gboolean
nm_setting_bridge_get_stp (NMSettingBridge *setting)
{
g_return_val_if_fail (NM_IS_SETTING_BRIDGE (setting), FALSE);
return NM_SETTING_BRIDGE_GET_PRIVATE (setting)->stp;
}
/**
* nm_setting_bridge_get_priority:
* @setting: the #NMSettingBridge
*
* Returns: the #NMSettingBridge:priority property of the setting
**/
guint16
nm_setting_bridge_get_priority (NMSettingBridge *setting)
{
g_return_val_if_fail (NM_IS_SETTING_BRIDGE (setting), 0);
return NM_SETTING_BRIDGE_GET_PRIVATE (setting)->priority;
}
/**
* nm_setting_bridge_get_forward_delay:
* @setting: the #NMSettingBridge
*
* Returns: the #NMSettingBridge:forward-delay property of the setting
**/
guint16
nm_setting_bridge_get_forward_delay (NMSettingBridge *setting)
{
g_return_val_if_fail (NM_IS_SETTING_BRIDGE (setting), 0);
return NM_SETTING_BRIDGE_GET_PRIVATE (setting)->forward_delay;
}
/**
* nm_setting_bridge_get_hello_time:
* @setting: the #NMSettingBridge
*
* Returns: the #NMSettingBridge:hello-time property of the setting
**/
guint16
nm_setting_bridge_get_hello_time (NMSettingBridge *setting)
{
g_return_val_if_fail (NM_IS_SETTING_BRIDGE (setting), 0);
return NM_SETTING_BRIDGE_GET_PRIVATE (setting)->hello_time;
}
/**
* nm_setting_bridge_get_max_age:
* @setting: the #NMSettingBridge
*
* Returns: the #NMSettingBridge:max-age property of the setting
**/
guint16
nm_setting_bridge_get_max_age (NMSettingBridge *setting)
{
g_return_val_if_fail (NM_IS_SETTING_BRIDGE (setting), 0);
return NM_SETTING_BRIDGE_GET_PRIVATE (setting)->max_age;
}
/**
* nm_setting_bridge_get_ageing_time:
* @setting: the #NMSettingBridge
*
* Returns: the #NMSettingBridge:ageing-time property of the setting
**/
guint
nm_setting_bridge_get_ageing_time (NMSettingBridge *setting)
{
g_return_val_if_fail (NM_IS_SETTING_BRIDGE (setting), 0);
return NM_SETTING_BRIDGE_GET_PRIVATE (setting)->ageing_time;
}
/**
* nm_setting_bridge_get_multicast_snooping:
* @setting: the #NMSettingBridge
*
* Returns: the #NMSettingBridge:multicast-snooping property of the setting
*
* Since: 1.2
**/
gboolean
nm_setting_bridge_get_multicast_snooping (NMSettingBridge *setting)
{
g_return_val_if_fail (NM_IS_SETTING_BRIDGE (setting), FALSE);
return NM_SETTING_BRIDGE_GET_PRIVATE (setting)->multicast_snooping;
}
/* IEEE 802.1D-1998 timer values */
#define BR_MIN_HELLO_TIME 1
#define BR_MAX_HELLO_TIME 10
#define BR_MIN_FORWARD_DELAY 2
#define BR_MAX_FORWARD_DELAY 30
#define BR_MIN_MAX_AGE 6
#define BR_MAX_MAX_AGE 40
/* IEEE 802.1D-1998 Table 7.4 */
#define BR_MIN_AGEING_TIME 0
#define BR_MAX_AGEING_TIME 1000000
static inline gboolean
check_range (guint32 val,
guint32 min,
guint32 max,
gboolean zero,
const char *prop,
GError **error)
{
if (zero && val == 0)
return TRUE;
if (val < min || val > max) {
g_set_error (error,
NM_CONNECTION_ERROR,
NM_CONNECTION_ERROR_INVALID_PROPERTY,
_("value '%d' is out of range <%d-%d>"),
val, min, max);
g_prefix_error (error, "%s.%s: ", NM_SETTING_BRIDGE_SETTING_NAME, prop);
return FALSE;
}
return TRUE;
}
static gboolean
verify (NMSetting *setting, NMConnection *connection, GError **error)
{
NMSettingBridgePrivate *priv = NM_SETTING_BRIDGE_GET_PRIVATE (setting);
if (priv->mac_address && !nm_utils_hwaddr_valid (priv->mac_address, ETH_ALEN)) {
g_set_error_literal (error,
NM_CONNECTION_ERROR,
NM_CONNECTION_ERROR_INVALID_PROPERTY,
_("is not a valid MAC address"));
g_prefix_error (error, "%s.%s: ", NM_SETTING_BRIDGE_SETTING_NAME, NM_SETTING_BRIDGE_MAC_ADDRESS);
return FALSE;
}
if (!check_range (priv->forward_delay,
BR_MIN_FORWARD_DELAY,
BR_MAX_FORWARD_DELAY,
!priv->stp,
NM_SETTING_BRIDGE_FORWARD_DELAY,
error))
return FALSE;
if (!check_range (priv->hello_time,
BR_MIN_HELLO_TIME,
BR_MAX_HELLO_TIME,
!priv->stp,
NM_SETTING_BRIDGE_HELLO_TIME,
error))
return FALSE;
if (!check_range (priv->max_age,
BR_MIN_MAX_AGE,
BR_MAX_MAX_AGE,
!priv->stp,
NM_SETTING_BRIDGE_MAX_AGE,
error))
return FALSE;
if (!check_range (priv->ageing_time,
BR_MIN_AGEING_TIME,
BR_MAX_AGEING_TIME,
!priv->stp,
NM_SETTING_BRIDGE_AGEING_TIME,
error))
return FALSE;
return _nm_connection_verify_required_interface_name (connection, error);
}
static void
nm_setting_bridge_init (NMSettingBridge *setting)
{
}
static void
finalize (GObject *object)
{
NMSettingBridgePrivate *priv = NM_SETTING_BRIDGE_GET_PRIVATE (object);
g_free (priv->mac_address);
G_OBJECT_CLASS (nm_setting_bridge_parent_class)->finalize (object);
}
static void
set_property (GObject *object, guint prop_id,
const GValue *value, GParamSpec *pspec)
{
NMSettingBridgePrivate *priv = NM_SETTING_BRIDGE_GET_PRIVATE (object);
switch (prop_id) {
case PROP_MAC_ADDRESS:
g_free (priv->mac_address);
priv->mac_address = _nm_utils_hwaddr_canonical_or_invalid (g_value_get_string (value),
ETH_ALEN);
break;
case PROP_STP:
priv->stp = g_value_get_boolean (value);
break;
case PROP_PRIORITY:
priv->priority = (guint16) g_value_get_uint (value);
break;
case PROP_FORWARD_DELAY:
priv->forward_delay = (guint16) g_value_get_uint (value);
break;
case PROP_HELLO_TIME:
priv->hello_time = (guint16) g_value_get_uint (value);
break;
case PROP_MAX_AGE:
priv->max_age = (guint16) g_value_get_uint (value);
break;
case PROP_AGEING_TIME:
priv->ageing_time = g_value_get_uint (value);
break;
case PROP_MULTICAST_SNOOPING:
priv->multicast_snooping = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
get_property (GObject *object, guint prop_id,
GValue *value, GParamSpec *pspec)
{
NMSettingBridgePrivate *priv = NM_SETTING_BRIDGE_GET_PRIVATE (object);
NMSettingBridge *setting = NM_SETTING_BRIDGE (object);
switch (prop_id) {
case PROP_MAC_ADDRESS:
g_value_set_string (value, nm_setting_bridge_get_mac_address (setting));
break;
case PROP_STP:
g_value_set_boolean (value, priv->stp);
break;
case PROP_PRIORITY:
g_value_set_uint (value, priv->priority);
break;
case PROP_FORWARD_DELAY:
g_value_set_uint (value, priv->forward_delay);
break;
case PROP_HELLO_TIME:
g_value_set_uint (value, priv->hello_time);
break;
case PROP_MAX_AGE:
g_value_set_uint (value, priv->max_age);
break;
case PROP_AGEING_TIME:
g_value_set_uint (value, priv->ageing_time);
break;
case PROP_MULTICAST_SNOOPING:
g_value_set_boolean (value, priv->multicast_snooping);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
nm_setting_bridge_class_init (NMSettingBridgeClass *setting_class)
{
GObjectClass *object_class = G_OBJECT_CLASS (setting_class);
NMSettingClass *parent_class = NM_SETTING_CLASS (setting_class);
g_type_class_add_private (setting_class, sizeof (NMSettingBridgePrivate));
/* virtual methods */
object_class->set_property = set_property;
object_class->get_property = get_property;
object_class->finalize = finalize;
parent_class->verify = verify;
/* Properties */
/**
* NMSettingBridge:mac-address:
*
* If specified, the MAC address of bridge. When creating a new bridge, this
* MAC address will be set. When matching an existing (outside
* NetworkManager created) bridge, this MAC address must match.
**/
/* ---keyfile---
* property: mac-address
* format: usual hex-digits-and-colons notation
* description: MAC address in traditional hex-digits-and-colons notation,
* or semicolon separated list of 6 decimal bytes (obsolete)
* example: mac-address=00:22:68:12:79:A2
* mac-address=0;34;104;18;121;162;
* ---end---
* ---ifcfg-rh---
* property: mac-address
* variable: MACADDR(+)
* description: MAC address of the bridge. Note that this requires a recent
* kernel support, originally introduced in 3.15 upstream kernel)
* MACADDR for bridges is an NM extension.
* ---end---
*/
g_object_class_install_property
(object_class, PROP_MAC_ADDRESS,
g_param_spec_string (NM_SETTING_BRIDGE_MAC_ADDRESS, "", "",
NULL,
G_PARAM_READWRITE |
NM_SETTING_PARAM_INFERRABLE |
G_PARAM_STATIC_STRINGS));
_nm_setting_class_transform_property (parent_class, NM_SETTING_BRIDGE_MAC_ADDRESS,
G_VARIANT_TYPE_BYTESTRING,
_nm_utils_hwaddr_to_dbus,
_nm_utils_hwaddr_from_dbus);
/**
* NMSettingBridge:stp:
*
* Controls whether Spanning Tree Protocol (STP) is enabled for this bridge.
**/
/* ---ifcfg-rh---
* property: stp
* variable: STP
* default: no
* description: Span tree protocol participation.
* ---end---
*/
g_object_class_install_property
(object_class, PROP_STP,
g_param_spec_boolean (NM_SETTING_BRIDGE_STP, "", "",
TRUE,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
NM_SETTING_PARAM_INFERRABLE |
G_PARAM_STATIC_STRINGS));
/**
* NMSettingBridge:priority:
*
* Sets the Spanning Tree Protocol (STP) priority for this bridge. Lower
* values are "better"; the lowest priority bridge will be elected the root
* bridge.
**/
/* ---ifcfg-rh---
* property: priority
* variable: BRIDGING_OPTS: priority=
* values: 0 - 32768
* default: 32768
* description: STP priority.
* ---end---
*/
g_object_class_install_property
(object_class, PROP_PRIORITY,
g_param_spec_uint (NM_SETTING_BRIDGE_PRIORITY, "", "",
0, G_MAXUINT16, 0x8000,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
NM_SETTING_PARAM_INFERRABLE |
G_PARAM_STATIC_STRINGS));
/**
* NMSettingBridge:forward-delay:
*
* The Spanning Tree Protocol (STP) forwarding delay, in seconds.
**/
/* ---ifcfg-rh---
* property: forward-delay
* variable: DELAY
* values: 2 - 30
* default: 15
* description: STP forwarding delay.
* ---end---
*/
g_object_class_install_property
(object_class, PROP_FORWARD_DELAY,
g_param_spec_uint (NM_SETTING_BRIDGE_FORWARD_DELAY, "", "",
0, BR_MAX_FORWARD_DELAY, 15,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
NM_SETTING_PARAM_INFERRABLE |
G_PARAM_STATIC_STRINGS));
/**
* NMSettingBridge:hello-time:
*
* The Spanning Tree Protocol (STP) hello time, in seconds.
**/
/* ---ifcfg-rh---
* property: hello-time
* variable: BRIDGING_OPTS: hello_time=
* values: 1 - 10
* default: 2
* description: STP hello time.
* ---end---
*/
g_object_class_install_property
(object_class, PROP_HELLO_TIME,
g_param_spec_uint (NM_SETTING_BRIDGE_HELLO_TIME, "", "",
0, BR_MAX_HELLO_TIME, 2,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
NM_SETTING_PARAM_INFERRABLE |
G_PARAM_STATIC_STRINGS));
/**
* NMSettingBridge:max-age:
*
* The Spanning Tree Protocol (STP) maximum message age, in seconds.
**/
/* ---ifcfg-rh---
* property: max-age
* variable: BRIDGING_OPTS: max_age=
* values: 6 - 40
* default: 20
* description: STP maximum message age.
* ---end---
*/
g_object_class_install_property
(object_class, PROP_MAX_AGE,
g_param_spec_uint (NM_SETTING_BRIDGE_MAX_AGE, "", "",
0, BR_MAX_MAX_AGE, 20,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
NM_SETTING_PARAM_INFERRABLE |
G_PARAM_STATIC_STRINGS));
/**
* NMSettingBridge:ageing-time:
*
* The Ethernet MAC address aging time, in seconds.
**/
/* ---ifcfg-rh---
* property: ageing-time
* variable: BRIDGING_OPTS: ageing_time=
* values: 0 - 1000000
* default: 300
* description: Ethernet MAC ageing time.
* ---end---
*/
g_object_class_install_property
(object_class, PROP_AGEING_TIME,
g_param_spec_uint (NM_SETTING_BRIDGE_AGEING_TIME, "", "",
0, BR_MAX_AGEING_TIME, 300,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
NM_SETTING_PARAM_INFERRABLE |
G_PARAM_STATIC_STRINGS));
/**
* NMSettingBridge:multicast-snooping:
*
* Controls whether IGMP snooping is enabled for this bridge.
* Note that if snooping was automatically disabled due to hash collisions,
* the system may refuse to enable the feature until the collisions are
* resolved.
*
* Since: 1.2
**/
/* ---ifcfg-rh---
* property: multicast-snooping
* variable: BRIDGING_OPTS: multicast_snooping=
* values: 0 or 1
* default: 1
* description: IGMP snooping support.
* ---end---
*/
g_object_class_install_property
(object_class, PROP_MULTICAST_SNOOPING,
g_param_spec_boolean (NM_SETTING_BRIDGE_MULTICAST_SNOOPING, "", "",
TRUE,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
NM_SETTING_PARAM_INFERRABLE |
G_PARAM_STATIC_STRINGS));
/* ---dbus---
* property: interface-name
* format: string
* description: Deprecated in favor of connection.interface-name, but can
* be used for backward-compatibility with older daemons, to set the
* bridge's interface name.
* ---end---
*/
_nm_setting_class_add_dbus_only_property (parent_class, "interface-name",
G_VARIANT_TYPE_STRING,
_nm_setting_get_deprecated_virtual_interface_name,
NULL);
}