mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
synced 2025-12-28 14:30:09 +01:00
1b49f941a6
This commit implements MAC cloning feature in NetworkManager. To support that, 'PermHwAddress' property is added into *.Device.Wired and *.Device.Wireless interfaces. The permanent MAC address is obtained when creating the device, and is used for 'locking' connections to the device. If a cloned MAC is specified in connection to be activated, the MAC is set to the interface in stage1. While disconecting, the permanent MAC is set back to the interface.
429 lines
13 KiB
C
429 lines
13 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
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/*
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* Dan Williams <dcbw@redhat.com>
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* Tambet Ingo <tambet@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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* (C) Copyright 2007 - 2010 Red Hat, Inc.
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* (C) Copyright 2007 - 2008 Novell, Inc.
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*/
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#include <net/ethernet.h>
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#include <dbus/dbus-glib.h>
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#include "nm-setting-wired.h"
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#include "nm-param-spec-specialized.h"
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#include "nm-utils.h"
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#include "nm-utils-private.h"
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GQuark
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nm_setting_wired_error_quark (void)
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{
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static GQuark quark;
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if (G_UNLIKELY (!quark))
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quark = g_quark_from_static_string ("nm-setting-wired-error-quark");
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return quark;
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}
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/* This should really be standard. */
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#define ENUM_ENTRY(NAME, DESC) { NAME, "" #NAME "", DESC }
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GType
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nm_setting_wired_error_get_type (void)
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{
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static GType etype = 0;
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if (etype == 0) {
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static const GEnumValue values[] = {
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/* Unknown error. */
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ENUM_ENTRY (NM_SETTING_WIRED_ERROR_UNKNOWN, "UnknownError"),
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/* The specified property was invalid. */
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ENUM_ENTRY (NM_SETTING_WIRED_ERROR_INVALID_PROPERTY, "InvalidProperty"),
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/* The specified property was missing and is required. */
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ENUM_ENTRY (NM_SETTING_WIRED_ERROR_MISSING_PROPERTY, "MissingProperty"),
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{ 0, 0, 0 }
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};
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etype = g_enum_register_static ("NMSettingWiredError", values);
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}
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return etype;
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}
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G_DEFINE_TYPE (NMSettingWired, nm_setting_wired, NM_TYPE_SETTING)
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#define NM_SETTING_WIRED_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_SETTING_WIRED, NMSettingWiredPrivate))
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typedef struct {
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char *port;
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guint32 speed;
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char *duplex;
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gboolean auto_negotiate;
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GByteArray *device_mac_address;
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GByteArray *cloned_mac_address;
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guint32 mtu;
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} NMSettingWiredPrivate;
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enum {
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PROP_0,
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PROP_PORT,
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PROP_SPEED,
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PROP_DUPLEX,
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PROP_AUTO_NEGOTIATE,
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PROP_MAC_ADDRESS,
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PROP_CLONED_MAC_ADDRESS,
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PROP_MTU,
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LAST_PROP
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};
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NMSetting *
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nm_setting_wired_new (void)
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{
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return (NMSetting *) g_object_new (NM_TYPE_SETTING_WIRED, NULL);
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}
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const char *
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nm_setting_wired_get_port (NMSettingWired *setting)
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{
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g_return_val_if_fail (NM_IS_SETTING_WIRED (setting), NULL);
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return NM_SETTING_WIRED_GET_PRIVATE (setting)->port;
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}
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guint32
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nm_setting_wired_get_speed (NMSettingWired *setting)
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{
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g_return_val_if_fail (NM_IS_SETTING_WIRED (setting), 0);
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return NM_SETTING_WIRED_GET_PRIVATE (setting)->speed;
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}
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const char *
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nm_setting_wired_get_duplex (NMSettingWired *setting)
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{
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g_return_val_if_fail (NM_IS_SETTING_WIRED (setting), NULL);
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return NM_SETTING_WIRED_GET_PRIVATE (setting)->duplex;
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}
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gboolean
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nm_setting_wired_get_auto_negotiate (NMSettingWired *setting)
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{
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g_return_val_if_fail (NM_IS_SETTING_WIRED (setting), FALSE);
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return NM_SETTING_WIRED_GET_PRIVATE (setting)->auto_negotiate;
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}
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const GByteArray *
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nm_setting_wired_get_mac_address (NMSettingWired *setting)
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{
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g_return_val_if_fail (NM_IS_SETTING_WIRED (setting), NULL);
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return NM_SETTING_WIRED_GET_PRIVATE (setting)->device_mac_address;
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}
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const GByteArray *
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nm_setting_wired_get_cloned_mac_address (NMSettingWired *setting)
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{
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g_return_val_if_fail (NM_IS_SETTING_WIRED (setting), NULL);
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return NM_SETTING_WIRED_GET_PRIVATE (setting)->cloned_mac_address;
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}
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guint32
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nm_setting_wired_get_mtu (NMSettingWired *setting)
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{
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g_return_val_if_fail (NM_IS_SETTING_WIRED (setting), 0);
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return NM_SETTING_WIRED_GET_PRIVATE (setting)->mtu;
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}
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static gboolean
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verify (NMSetting *setting, GSList *all_settings, GError **error)
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{
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NMSettingWiredPrivate *priv = NM_SETTING_WIRED_GET_PRIVATE (setting);
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const char *valid_ports[] = { "tp", "aui", "bnc", "mii", NULL };
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const char *valid_duplex[] = { "half", "full", NULL };
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if (priv->port && !_nm_utils_string_in_list (priv->port, valid_ports)) {
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g_set_error (error,
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NM_SETTING_WIRED_ERROR,
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NM_SETTING_WIRED_ERROR_INVALID_PROPERTY,
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NM_SETTING_WIRED_PORT);
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return FALSE;
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}
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if (priv->duplex && !_nm_utils_string_in_list (priv->duplex, valid_duplex)) {
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g_set_error (error,
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NM_SETTING_WIRED_ERROR,
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NM_SETTING_WIRED_ERROR_INVALID_PROPERTY,
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NM_SETTING_WIRED_DUPLEX);
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return FALSE;
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}
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if (priv->device_mac_address && priv->device_mac_address->len != ETH_ALEN) {
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g_set_error (error,
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NM_SETTING_WIRED_ERROR,
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NM_SETTING_WIRED_ERROR_INVALID_PROPERTY,
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NM_SETTING_WIRED_MAC_ADDRESS);
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return FALSE;
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}
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if (priv->cloned_mac_address && priv->cloned_mac_address->len != ETH_ALEN) {
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g_set_error (error,
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NM_SETTING_WIRED_ERROR,
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NM_SETTING_WIRED_ERROR_INVALID_PROPERTY,
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NM_SETTING_WIRED_CLONED_MAC_ADDRESS);
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return FALSE;
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}
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return TRUE;
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}
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static void
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nm_setting_wired_init (NMSettingWired *setting)
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{
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g_object_set (setting, NM_SETTING_NAME, NM_SETTING_WIRED_SETTING_NAME, NULL);
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}
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static void
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finalize (GObject *object)
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{
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NMSettingWiredPrivate *priv = NM_SETTING_WIRED_GET_PRIVATE (object);
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g_free (priv->port);
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g_free (priv->duplex);
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if (priv->device_mac_address)
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g_byte_array_free (priv->device_mac_address, TRUE);
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if (priv->cloned_mac_address)
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g_byte_array_free (priv->cloned_mac_address, TRUE);
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G_OBJECT_CLASS (nm_setting_wired_parent_class)->finalize (object);
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}
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static void
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set_property (GObject *object, guint prop_id,
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const GValue *value, GParamSpec *pspec)
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{
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NMSettingWiredPrivate *priv = NM_SETTING_WIRED_GET_PRIVATE (object);
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switch (prop_id) {
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case PROP_PORT:
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g_free (priv->port);
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priv->port = g_value_dup_string (value);
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break;
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case PROP_SPEED:
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priv->speed = g_value_get_uint (value);
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break;
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case PROP_DUPLEX:
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g_free (priv->duplex);
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priv->duplex = g_value_dup_string (value);
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break;
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case PROP_AUTO_NEGOTIATE:
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priv->auto_negotiate = g_value_get_boolean (value);
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break;
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case PROP_MAC_ADDRESS:
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if (priv->device_mac_address)
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g_byte_array_free (priv->device_mac_address, TRUE);
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priv->device_mac_address = g_value_dup_boxed (value);
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break;
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case PROP_CLONED_MAC_ADDRESS:
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if (priv->cloned_mac_address)
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g_byte_array_free (priv->cloned_mac_address, TRUE);
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priv->cloned_mac_address = g_value_dup_boxed (value);
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break;
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case PROP_MTU:
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priv->mtu = g_value_get_uint (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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get_property (GObject *object, guint prop_id,
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GValue *value, GParamSpec *pspec)
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{
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NMSettingWired *setting = NM_SETTING_WIRED (object);
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switch (prop_id) {
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case PROP_PORT:
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g_value_set_string (value, nm_setting_wired_get_port (setting));
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break;
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case PROP_SPEED:
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g_value_set_uint (value, nm_setting_wired_get_speed (setting));
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break;
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case PROP_DUPLEX:
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g_value_set_string (value, nm_setting_wired_get_duplex (setting));
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break;
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case PROP_AUTO_NEGOTIATE:
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g_value_set_boolean (value, nm_setting_wired_get_auto_negotiate (setting));
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break;
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case PROP_MAC_ADDRESS:
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g_value_set_boxed (value, nm_setting_wired_get_mac_address (setting));
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break;
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case PROP_CLONED_MAC_ADDRESS:
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g_value_set_boxed (value, nm_setting_wired_get_cloned_mac_address (setting));
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break;
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case PROP_MTU:
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g_value_set_uint (value, nm_setting_wired_get_mtu (setting));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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nm_setting_wired_class_init (NMSettingWiredClass *setting_class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (setting_class);
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NMSettingClass *parent_class = NM_SETTING_CLASS (setting_class);
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g_type_class_add_private (setting_class, sizeof (NMSettingWiredPrivate));
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/* virtual methods */
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object_class->set_property = set_property;
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object_class->get_property = get_property;
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object_class->finalize = finalize;
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parent_class->verify = verify;
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/* Properties */
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/**
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* NMSettingWired:port:
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*
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* Specific port type to use if multiple the device supports multiple
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* attachment methods. One of 'tp' (Twisted Pair), 'aui' (Attachment Unit
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* Interface), 'bnc' (Thin Ethernet) or 'mii' (Media Independent Interface.
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* If the device supports only one port type, this setting is ignored.
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**/
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g_object_class_install_property
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(object_class, PROP_PORT,
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g_param_spec_string (NM_SETTING_WIRED_PORT,
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"Port",
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"Specific port type to use if multiple the device "
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"supports multiple attachment methods. One of "
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"'tp' (Twisted Pair), 'aui' (Attachment Unit Interface), "
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"'bnc' (Thin Ethernet) or 'mii' (Media Independent "
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"Interface. If the device supports only one port "
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"type, this setting is ignored.",
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NULL,
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G_PARAM_READWRITE | NM_SETTING_PARAM_SERIALIZE));
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/**
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* NMSettingWired:speed:
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*
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* If non-zero, request that the device use only the specified speed.
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* In Mbit/s, ie 100 == 100Mbit/s.
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**/
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g_object_class_install_property
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(object_class, PROP_SPEED,
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g_param_spec_uint (NM_SETTING_WIRED_SPEED,
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"Speed",
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"If non-zero, request that the device use only the "
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"specified speed. In Mbit/s, ie 100 == 100Mbit/s.",
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0, G_MAXUINT32, 0,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT | NM_SETTING_PARAM_SERIALIZE));
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/**
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* NMSettingWired:duplex:
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*
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* If specified, request that the device only use the specified duplex mode.
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* Either 'half' or 'full'.
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**/
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g_object_class_install_property
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(object_class, PROP_DUPLEX,
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g_param_spec_string (NM_SETTING_WIRED_DUPLEX,
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"Duplex",
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"If specified, request that the device only use the "
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"specified duplex mode. Either 'half' or 'full'.",
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NULL,
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G_PARAM_READWRITE | NM_SETTING_PARAM_SERIALIZE));
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/**
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* NMSettingEthernet:auto-negotiate:
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*
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* If TRUE, allow auto-negotiation of port speed and duplex mode. If FALSE,
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* do not allow auto-negotiation, in which case the 'speed' and 'duplex'
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* properties should be set.
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**/
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g_object_class_install_property
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(object_class, PROP_AUTO_NEGOTIATE,
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g_param_spec_boolean (NM_SETTING_WIRED_AUTO_NEGOTIATE,
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"AutoNegotiate",
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"If TRUE, allow auto-negotiation of port speed and "
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"duplex mode. If FALSE, do not allow auto-negotiation,"
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"in which case the 'speed' and 'duplex' properties "
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"should be set.",
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TRUE,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT | NM_SETTING_PARAM_SERIALIZE));
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/**
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* NMSettingWired:mac-address:
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*
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* If specified, this connection will only apply to the ethernet device
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* whose permanent MAC address matches. This property does not change the MAC address
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* of the device (i.e. MAC spoofing).
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**/
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g_object_class_install_property
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(object_class, PROP_MAC_ADDRESS,
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_nm_param_spec_specialized (NM_SETTING_WIRED_MAC_ADDRESS,
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"Device MAC Address",
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"If specified, this connection will only apply to "
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"the ethernet device whose permanent MAC address matches. "
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"This property does not change the MAC address "
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"of the device (i.e. MAC spoofing).",
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DBUS_TYPE_G_UCHAR_ARRAY,
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G_PARAM_READWRITE | NM_SETTING_PARAM_SERIALIZE));
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/**
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* NMSettingWired:cloned-mac-address:
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*
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* If specified, request that the device use this MAC address instead of its
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* permanent MAC address. This is known as MAC cloning or spoofing.
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**/
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g_object_class_install_property
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(object_class, PROP_CLONED_MAC_ADDRESS,
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_nm_param_spec_specialized (NM_SETTING_WIRED_CLONED_MAC_ADDRESS,
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"Cloned MAC Address",
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"If specified, request that the device use "
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"this MAC address instead of its permanent MAC address. "
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"This is known as MAC cloning or spoofing.",
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DBUS_TYPE_G_UCHAR_ARRAY,
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G_PARAM_READWRITE | NM_SETTING_PARAM_SERIALIZE));
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/**
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* NMSettingWired:mtu:
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*
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* If non-zero, only transmit packets of the specified size or smaller,
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* breaking larger packets up into multiple Ethernet frames.
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**/
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g_object_class_install_property
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(object_class, PROP_MTU,
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g_param_spec_uint (NM_SETTING_WIRED_MTU,
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"MTU",
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"If non-zero, only transmit packets of the specified "
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"size or smaller, breaking larger packets up into "
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"multiple Ethernet frames.",
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0, G_MAXUINT32, 0,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT | NM_SETTING_PARAM_SERIALIZE | NM_SETTING_PARAM_FUZZY_IGNORE));
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}
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