1f5b48a59e
This speeds up the initial object tree load significantly. Also, it reduces the object management complexity by shifting the duties to GDBusObjectManager. The lifetime of all NMObjects is now managed by the NMClient via the object manager. The NMClient creates the NMObjects for GDBus objects, triggers the initialization and serves as an object registry (replaces the nm-cache). The ObjectManager uses the o.fd.DBus.ObjectManager API to learn of the object creation, removal and property changes. It takes care of the property changes so that we don't have to and lets us always see a consistent object state. Thus at the time we learn of a new object we already know its properties. The NMObject unfortunately can't be made synchronously initializable as the NMRemoteConnection's settings are not managed with standard o.fd.DBus Properties and ObjectManager APIs and thus are not known to the ObjectManager. Thus most of the asynchronous object property changing code in nm-object.c is preserved. The objects notify the properties that reference them of their initialization in from their init_finish() methods, thus the asynchronously created objects are not allowed to fail creation (or the dependees would wait forever). Not a problem -- if a connection can't get its Settings, it's either invisible or being removed (presumably we'd learn of the removal from the object manager soon). The NMObjects can't be created by the object manager itself, since we can't determine the resulting object type in proxy_type() yet (we can't tell from the name and can't access the interface list). Therefore the GDBusObject is coupled with a NMObject later on. Lastly, now that all the objects are managed by the object manager, the NMRemoteSettings and NMManager go away when the daemon is stopped. The complexity of dealing with calls to NMClient that would require any of the resources that these objects manage (connection or device lists, etc.) had to be moved to NMClient. The bright side is that his allows for removal all of the daemon presence tracking from NMObject.
433 lines
12 KiB
C
433 lines
12 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
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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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* Copyright 2007 - 2008 Novell, Inc.
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* Copyright 2007 - 2012 Red Hat, Inc.
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*/
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#include "nm-default.h"
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#include <string.h>
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#include "nm-setting-connection.h"
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#include "nm-setting-wired.h"
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#include "nm-setting-pppoe.h"
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#include "nm-utils.h"
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#include "nm-device-ethernet.h"
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#include "nm-object-private.h"
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G_DEFINE_TYPE (NMDeviceEthernet, nm_device_ethernet, NM_TYPE_DEVICE)
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#define NM_DEVICE_ETHERNET_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_DEVICE_ETHERNET, NMDeviceEthernetPrivate))
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typedef struct {
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char *hw_address;
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char *perm_hw_address;
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guint32 speed;
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gboolean carrier;
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char **s390_subchannels;
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} NMDeviceEthernetPrivate;
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enum {
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PROP_0,
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PROP_HW_ADDRESS,
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PROP_PERM_HW_ADDRESS,
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PROP_SPEED,
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PROP_CARRIER,
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PROP_S390_SUBCHANNELS,
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LAST_PROP
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};
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/**
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* nm_device_ethernet_get_hw_address:
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* @device: a #NMDeviceEthernet
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*
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* Gets the active hardware (MAC) address of the #NMDeviceEthernet
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*
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* Returns: the active hardware address. This is the internal string used by the
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* device, and must not be modified.
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**/
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const char *
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nm_device_ethernet_get_hw_address (NMDeviceEthernet *device)
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{
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g_return_val_if_fail (NM_IS_DEVICE_ETHERNET (device), NULL);
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return nm_str_not_empty (NM_DEVICE_ETHERNET_GET_PRIVATE (device)->hw_address);
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}
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/**
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* nm_device_ethernet_get_permanent_hw_address:
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* @device: a #NMDeviceEthernet
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*
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* Gets the permanent hardware (MAC) address of the #NMDeviceEthernet
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*
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* Returns: the permanent hardware address. This is the internal string used by the
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* device, and must not be modified.
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**/
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const char *
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nm_device_ethernet_get_permanent_hw_address (NMDeviceEthernet *device)
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{
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g_return_val_if_fail (NM_IS_DEVICE_ETHERNET (device), NULL);
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return nm_str_not_empty (NM_DEVICE_ETHERNET_GET_PRIVATE (device)->perm_hw_address);
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}
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/**
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* nm_device_ethernet_get_speed:
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* @device: a #NMDeviceEthernet
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*
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* Gets the speed of the #NMDeviceEthernet.
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*
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* Returns: the speed of the device
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**/
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guint32
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nm_device_ethernet_get_speed (NMDeviceEthernet *device)
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{
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g_return_val_if_fail (NM_IS_DEVICE_ETHERNET (device), 0);
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return NM_DEVICE_ETHERNET_GET_PRIVATE (device)->speed;
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}
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/**
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* nm_device_ethernet_get_carrier:
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* @device: a #NMDeviceEthernet
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*
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* Whether the device has carrier.
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*
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* Returns: %TRUE if the device has carrier
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**/
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gboolean
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nm_device_ethernet_get_carrier (NMDeviceEthernet *device)
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{
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g_return_val_if_fail (NM_IS_DEVICE_ETHERNET (device), FALSE);
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return NM_DEVICE_ETHERNET_GET_PRIVATE (device)->carrier;
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}
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/**
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* nm_device_ethernet_get_s390_subchannels:
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* @device: a #NMDeviceEthernet
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*
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* Return the list of s390 subchannels if the device supports them.
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*
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* Returns: (transfer none) (element-type utf8): array of strings, each specifying
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* one subchannel the s390 device uses to communicate to the host.
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*
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* Since: 1.2
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**/
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const char * const *
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nm_device_ethernet_get_s390_subchannels (NMDeviceEthernet *device)
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{
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g_return_val_if_fail (NM_IS_DEVICE_ETHERNET (device), NULL);
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return (const char * const *) NM_DEVICE_ETHERNET_GET_PRIVATE (device)->s390_subchannels;
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}
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static guint32
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_subchannels_count_num (const char * const *array)
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{
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int i;
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if (!array)
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return 0;
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for (i = 0; array[i]; i++)
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/* NOP */;
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return i;
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}
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static gboolean
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match_subchans (NMDeviceEthernet *self, NMSettingWired *s_wired, gboolean *try_mac)
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{
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NMDeviceEthernetPrivate *priv = NM_DEVICE_ETHERNET_GET_PRIVATE (self);
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const char * const *subchans;
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guint32 num1, num2;
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int i, j;
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*try_mac = TRUE;
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subchans = nm_setting_wired_get_s390_subchannels (s_wired);
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num1 = _subchannels_count_num (subchans);
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num2 = _subchannels_count_num ((const char * const *) priv->s390_subchannels);
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/* connection has no subchannels */
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if (num1 == 0)
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return TRUE;
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/* connection requires subchannels but the device has none */
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if (num2 == 0)
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return FALSE;
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/* number of subchannels differ */
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if (num1 != num2)
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return FALSE;
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/* Make sure each subchannel in the connection is a subchannel of this device */
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for (i = 0; subchans[i]; i++) {
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const char *candidate = subchans[i];
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gboolean found = FALSE;
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for (j = 0; priv->s390_subchannels[j]; j++) {
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if (!g_strcmp0 (priv->s390_subchannels[j], candidate))
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found = TRUE;
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}
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if (!found)
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return FALSE; /* a subchannel was not found */
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}
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*try_mac = FALSE;
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return TRUE;
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}
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static gboolean
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connection_compatible (NMDevice *device, NMConnection *connection, GError **error)
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{
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NMSettingWired *s_wired;
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if (!NM_DEVICE_CLASS (nm_device_ethernet_parent_class)->connection_compatible (device, connection, error))
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return FALSE;
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if (nm_connection_is_type (connection, NM_SETTING_PPPOE_SETTING_NAME)) {
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/* NOP */
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} else if (!nm_connection_is_type (connection, NM_SETTING_WIRED_SETTING_NAME)) {
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g_set_error_literal (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,
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_("The connection was not an Ethernet or PPPoE connection."));
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return FALSE;
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}
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s_wired = nm_connection_get_setting_wired (connection);
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/* Wired setting optional for PPPoE */
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if (s_wired) {
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const char *perm_addr, *s_mac;
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gboolean try_mac = TRUE;
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const char * const *mac_blacklist;
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int i;
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/* Check s390 subchannels */
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if (!match_subchans (NM_DEVICE_ETHERNET (device), s_wired, &try_mac)) {
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g_set_error_literal (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,
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_("The connection and device differ in S390 subchannels."));
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return FALSE;
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}
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/* Check MAC address */
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perm_addr = nm_device_ethernet_get_permanent_hw_address (NM_DEVICE_ETHERNET (device));
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s_mac = nm_setting_wired_get_mac_address (s_wired);
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if (perm_addr) {
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/* Virtual devices will have empty permanent addr but they should not be excluded
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* from the MAC address check specified in the connection */
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if (*perm_addr == 0)
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perm_addr = nm_device_ethernet_get_hw_address (NM_DEVICE_ETHERNET (device));
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if (!nm_utils_hwaddr_valid (perm_addr, ETH_ALEN)) {
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g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_FAILED,
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_("Invalid device MAC address %s."), perm_addr);
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return FALSE;
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}
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if (try_mac && s_mac && !nm_utils_hwaddr_matches (s_mac, -1, perm_addr, -1)) {
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g_set_error_literal (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,
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_("The MACs of the device and the connection do not match."));
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return FALSE;
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}
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/* Check for MAC address blacklist */
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mac_blacklist = nm_setting_wired_get_mac_address_blacklist (s_wired);
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for (i = 0; mac_blacklist[i]; i++) {
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if (!nm_utils_hwaddr_valid (mac_blacklist[i], ETH_ALEN)) {
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g_warn_if_reached ();
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g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,
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_("Invalid MAC in the blacklist: %s."), mac_blacklist[i]);
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return FALSE;
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}
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if (nm_utils_hwaddr_matches (mac_blacklist[i], -1, perm_addr, -1)) {
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g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,
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_("Device MAC (%s) is blacklisted by the connection."), perm_addr);
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return FALSE;
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}
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}
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}
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}
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return TRUE;
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}
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static GType
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get_setting_type (NMDevice *device)
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{
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return NM_TYPE_SETTING_WIRED;
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}
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static const char *
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get_hw_address (NMDevice *device)
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{
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return nm_device_ethernet_get_hw_address (NM_DEVICE_ETHERNET (device));
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}
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/*****************************************************************************/
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static void
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nm_device_ethernet_init (NMDeviceEthernet *device)
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{
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}
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static void
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init_dbus (NMObject *object)
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{
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NMDeviceEthernetPrivate *priv = NM_DEVICE_ETHERNET_GET_PRIVATE (object);
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const NMPropertiesInfo property_info[] = {
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{ NM_DEVICE_ETHERNET_HW_ADDRESS, &priv->hw_address },
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{ NM_DEVICE_ETHERNET_PERMANENT_HW_ADDRESS, &priv->perm_hw_address },
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{ NM_DEVICE_ETHERNET_SPEED, &priv->speed },
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{ NM_DEVICE_ETHERNET_CARRIER, &priv->carrier },
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{ NM_DEVICE_ETHERNET_S390_SUBCHANNELS, &priv->s390_subchannels },
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{ NULL },
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};
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NM_OBJECT_CLASS (nm_device_ethernet_parent_class)->init_dbus (object);
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_nm_object_register_properties (object,
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NM_DBUS_INTERFACE_DEVICE_WIRED,
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property_info);
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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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NMDeviceEthernetPrivate *priv = NM_DEVICE_ETHERNET_GET_PRIVATE (object);
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g_free (priv->hw_address);
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g_free (priv->perm_hw_address);
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g_strfreev (priv->s390_subchannels);
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G_OBJECT_CLASS (nm_device_ethernet_parent_class)->finalize (object);
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}
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static void
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get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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NMDeviceEthernet *device = NM_DEVICE_ETHERNET (object);
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NMDeviceEthernetPrivate *priv = NM_DEVICE_ETHERNET_GET_PRIVATE (device);
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switch (prop_id) {
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case PROP_HW_ADDRESS:
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g_value_set_string (value, nm_device_ethernet_get_hw_address (device));
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break;
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case PROP_PERM_HW_ADDRESS:
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g_value_set_string (value, nm_device_ethernet_get_permanent_hw_address (device));
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break;
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case PROP_SPEED:
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g_value_set_uint (value, nm_device_ethernet_get_speed (device));
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break;
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case PROP_CARRIER:
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g_value_set_boolean (value, nm_device_ethernet_get_carrier (device));
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break;
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case PROP_S390_SUBCHANNELS:
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g_value_set_boxed (value, priv->s390_subchannels);
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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_device_ethernet_class_init (NMDeviceEthernetClass *eth_class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (eth_class);
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NMObjectClass *nm_object_class = NM_OBJECT_CLASS (eth_class);
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NMDeviceClass *device_class = NM_DEVICE_CLASS (eth_class);
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g_type_class_add_private (eth_class, sizeof (NMDeviceEthernetPrivate));
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/* virtual methods */
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object_class->finalize = finalize;
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object_class->get_property = get_property;
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nm_object_class->init_dbus = init_dbus;
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device_class->connection_compatible = connection_compatible;
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device_class->get_setting_type = get_setting_type;
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device_class->get_hw_address = get_hw_address;
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/* properties */
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/**
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* NMDeviceEthernet:hw-address:
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*
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* The active hardware (MAC) address of the device.
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**/
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g_object_class_install_property
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(object_class, PROP_HW_ADDRESS,
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g_param_spec_string (NM_DEVICE_ETHERNET_HW_ADDRESS, "", "",
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NULL,
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G_PARAM_READABLE |
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G_PARAM_STATIC_STRINGS));
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/**
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* NMDeviceEthernet:perm-hw-address:
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*
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* The permanent hardware (MAC) address of the device.
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**/
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g_object_class_install_property
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(object_class, PROP_PERM_HW_ADDRESS,
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g_param_spec_string (NM_DEVICE_ETHERNET_PERMANENT_HW_ADDRESS, "", "",
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NULL,
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G_PARAM_READABLE |
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G_PARAM_STATIC_STRINGS));
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/**
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* NMDeviceEthernet:speed:
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*
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* The speed of the device.
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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_DEVICE_ETHERNET_SPEED, "", "",
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0, G_MAXUINT32, 0,
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G_PARAM_READABLE |
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G_PARAM_STATIC_STRINGS));
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/**
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* NMDeviceEthernet:carrier:
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*
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* Whether the device has carrier.
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**/
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g_object_class_install_property
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(object_class, PROP_CARRIER,
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g_param_spec_boolean (NM_DEVICE_ETHERNET_CARRIER, "", "",
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FALSE,
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G_PARAM_READABLE |
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G_PARAM_STATIC_STRINGS));
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/**
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* NMDeviceEthernet:s390-subchannels:
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*
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* Identifies subchannels of this network device used for
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* communication with z/VM or s390 host.
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*
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* Since: 1.2
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**/
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g_object_class_install_property
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(object_class, PROP_S390_SUBCHANNELS,
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g_param_spec_boxed (NM_DEVICE_ETHERNET_S390_SUBCHANNELS, "", "",
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G_TYPE_STRV,
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G_PARAM_READABLE |
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G_PARAM_STATIC_STRINGS));
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}
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