mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
synced 2026-05-15 22:58:18 +02:00
bd8d49495b
Historically, the NMSetting types were in public headers. Theoretically,
that allowed users to subtype our classes. However in practice that was
impossible because they lacked required access to internal functions to
fully create an NMSetting class outside of libnm. And it also was not
useful, because you simply cannot extend libnm by subtyping a libnm
class. And supporting such a use case would be hard and limit what we can
do in libnm.
Having GObject structs in public headers also require that we don't
change it's layout. The ABI of those structs must not change, if anybody
out there was actually subclassing our GObjects.
In libnm 1.34 (commit e46d484fae ('libnm: hide NMSetting types from
public headers')) we moved the structs from headers to internal.
This would have caused a compiler error if anybody was using those
struct definitions. However, we still didn't change the ABI/layout so
that we didn't break users who relied on it (for whatever reason).
It doesn't seem there were any affected user. We waited long enough.
Change internal ABI.
No longer use g_type_class_add_private(). Instead, embed the private
structs directly (_NM_GET_PRIVATE()) or indirectly
(_NM_GET_PRIVATE_PTR()) in the object.
The main benefit is for debugging in the debugger, where we can now
easily find the private data. Previously that was so cumbersome to be
effectively impossible.
It's also the fastest possible way, since NM_SETTING_*_GET_PRIVATE()
literally resolves to "&self->_priv" (plus static asserts and
nm_assert() for type checking).
_NM_GET_PRIVATE() also propagates constness and requires that the
argument is a compatible pointer type (at compile time).
Note that g_type_class_add_private() is also deprecated in glib 2.58 and
replaced by G_ADD_PRIVATE(). For one, we still don't rely on 2.58. Also,
G_ADD_PRIVATE() is a worse solution as it supports a usecase that we
don't care for (public structs in headers). _NM_GET_PRIVATE() is still
faster, works with older glib and most importantly: is better for
debugging as you can find the private data from an object pointer.
For NMSettingIPConfig this is rather awkward, because all direct
properties require a common "klass->private_offset". This was however
the case before this change. Nothing new here. And if you ever touch
this and do something wrong, many unit tests will fail. It's almost
impossible to get wrong, albeit it can be confusing to understand.
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1773
579 lines
18 KiB
C
579 lines
18 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2012 - 2013 Red Hat, Inc.
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*/
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#include "libnm-core-impl/nm-default-libnm-core.h"
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#include "nm-setting-bridge-port.h"
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#include <ctype.h>
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#include <stdlib.h>
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#include "nm-utils.h"
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#include "nm-utils-private.h"
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#include "nm-connection-private.h"
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#include "nm-setting-connection.h"
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#include "nm-setting-bridge.h"
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/**
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* SECTION:nm-setting-bridge-port
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* @short_description: Describes connection properties for bridge ports
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*
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* The #NMSettingBridgePort object is a #NMSetting subclass that describes
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* optional properties that apply to bridge ports.
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**/
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/*****************************************************************************/
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NM_GOBJECT_PROPERTIES_DEFINE(NMSettingBridgePort,
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PROP_PRIORITY,
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PROP_PATH_COST,
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PROP_HAIRPIN_MODE,
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PROP_VLANS, );
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typedef struct {
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GPtrArray *vlans;
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guint32 priority;
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guint32 path_cost;
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bool hairpin_mode;
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} NMSettingBridgePortPrivate;
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/**
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* NMSettingBridgePort:
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*
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* Bridge Port Settings
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*/
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struct _NMSettingBridgePort {
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NMSetting parent;
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NMSettingBridgePortPrivate _priv;
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};
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struct _NMSettingBridgePortClass {
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NMSettingClass parent;
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};
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G_DEFINE_TYPE(NMSettingBridgePort, nm_setting_bridge_port, NM_TYPE_SETTING)
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#define NM_SETTING_BRIDGE_PORT_GET_PRIVATE(o) \
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_NM_GET_PRIVATE(o, NMSettingBridgePort, NM_IS_SETTING_BRIDGE_PORT, NMSetting)
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/*****************************************************************************/
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static int
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vlan_ptr_cmp(gconstpointer a, gconstpointer b)
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{
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const NMBridgeVlan *vlan_a = *(const NMBridgeVlan **) a;
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const NMBridgeVlan *vlan_b = *(const NMBridgeVlan **) b;
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return nm_bridge_vlan_cmp(vlan_a, vlan_b);
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}
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gboolean
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_nm_setting_bridge_port_sort_vlans(NMSettingBridgePort *setting)
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{
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NMSettingBridgePortPrivate *priv;
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gboolean need_sort = FALSE;
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guint i;
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priv = NM_SETTING_BRIDGE_PORT_GET_PRIVATE(setting);
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for (i = 1; i < priv->vlans->len; i++) {
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NMBridgeVlan *vlan_prev = priv->vlans->pdata[i - 1];
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NMBridgeVlan *vlan = priv->vlans->pdata[i];
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if (nm_bridge_vlan_cmp(vlan_prev, vlan) > 0) {
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need_sort = TRUE;
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break;
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}
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}
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if (need_sort) {
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g_ptr_array_sort(priv->vlans, vlan_ptr_cmp);
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_notify(setting, PROP_VLANS);
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}
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return need_sort;
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}
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/*****************************************************************************/
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/**
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* nm_setting_bridge_port_get_priority:
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* @setting: the #NMSettingBridgePort
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*
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* Returns: the #NMSettingBridgePort:priority property of the setting
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**/
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guint16
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nm_setting_bridge_port_get_priority(NMSettingBridgePort *setting)
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{
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g_return_val_if_fail(NM_IS_SETTING_BRIDGE_PORT(setting), 0);
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return NM_SETTING_BRIDGE_PORT_GET_PRIVATE(setting)->priority;
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}
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/**
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* nm_setting_bridge_port_get_path_cost:
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* @setting: the #NMSettingBridgePort
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*
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* Returns: the #NMSettingBridgePort:path-cost property of the setting
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**/
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guint16
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nm_setting_bridge_port_get_path_cost(NMSettingBridgePort *setting)
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{
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g_return_val_if_fail(NM_IS_SETTING_BRIDGE_PORT(setting), 0);
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return NM_SETTING_BRIDGE_PORT_GET_PRIVATE(setting)->path_cost;
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}
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/**
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* nm_setting_bridge_port_get_hairpin_mode:
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* @setting: the #NMSettingBridgePort
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*
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* Returns: the #NMSettingBridgePort:hairpin-mode property of the setting
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**/
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gboolean
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nm_setting_bridge_port_get_hairpin_mode(NMSettingBridgePort *setting)
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{
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g_return_val_if_fail(NM_IS_SETTING_BRIDGE_PORT(setting), FALSE);
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return NM_SETTING_BRIDGE_PORT_GET_PRIVATE(setting)->hairpin_mode;
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}
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/**
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* nm_setting_bridge_port_add_vlan:
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* @setting: the #NMSettingBridgePort
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* @vlan: the vlan to add
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*
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* Appends a new vlan and associated information to the setting. The
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* given vlan gets sealed and a reference to it is added.
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*
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* Since: 1.18
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**/
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void
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nm_setting_bridge_port_add_vlan(NMSettingBridgePort *setting, NMBridgeVlan *vlan)
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{
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NMSettingBridgePortPrivate *priv;
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g_return_if_fail(NM_IS_SETTING_BRIDGE_PORT(setting));
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g_return_if_fail(vlan);
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priv = NM_SETTING_BRIDGE_PORT_GET_PRIVATE(setting);
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nm_bridge_vlan_seal(vlan);
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nm_bridge_vlan_ref(vlan);
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g_ptr_array_add(priv->vlans, vlan);
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_notify(setting, PROP_VLANS);
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}
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/**
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* nm_setting_bridge_port_get_num_vlans:
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* @setting: the #NMSettingBridgePort
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*
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* Returns: the number of VLANs
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*
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* Since: 1.18
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**/
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guint
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nm_setting_bridge_port_get_num_vlans(NMSettingBridgePort *setting)
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{
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NMSettingBridgePortPrivate *priv;
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g_return_val_if_fail(NM_IS_SETTING_BRIDGE_PORT(setting), 0);
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priv = NM_SETTING_BRIDGE_PORT_GET_PRIVATE(setting);
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return priv->vlans->len;
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}
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/**
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* nm_setting_bridge_port_get_vlan:
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* @setting: the #NMSettingBridgePort
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* @idx: index number of the VLAN to return
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*
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* Returns: (transfer none): the VLAN at index @idx
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*
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* Since: 1.18
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**/
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NMBridgeVlan *
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nm_setting_bridge_port_get_vlan(NMSettingBridgePort *setting, guint idx)
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{
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NMSettingBridgePortPrivate *priv;
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g_return_val_if_fail(NM_IS_SETTING_BRIDGE_PORT(setting), NULL);
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priv = NM_SETTING_BRIDGE_PORT_GET_PRIVATE(setting);
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g_return_val_if_fail(idx < priv->vlans->len, NULL);
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return priv->vlans->pdata[idx];
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}
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/**
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* nm_setting_bridge_port_remove_vlan:
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* @setting: the #NMSettingBridgePort
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* @idx: index number of the VLAN.
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*
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* Removes the vlan at index @idx.
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*
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* Since: 1.18
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**/
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void
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nm_setting_bridge_port_remove_vlan(NMSettingBridgePort *setting, guint idx)
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{
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NMSettingBridgePortPrivate *priv;
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g_return_if_fail(NM_IS_SETTING_BRIDGE_PORT(setting));
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priv = NM_SETTING_BRIDGE_PORT_GET_PRIVATE(setting);
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g_return_if_fail(idx < priv->vlans->len);
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g_ptr_array_remove_index(priv->vlans, idx);
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_notify(setting, PROP_VLANS);
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}
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/**
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* nm_setting_bridge_port_remove_vlan_by_vid:
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* @setting: the #NMSettingBridgePort
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* @vid_start: the vlan start index
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* @vid_end: the vlan end index
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*
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* Remove the VLAN with range @vid_start to @vid_end.
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* If @vid_end is zero, it is assumed to be equal to @vid_start
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* and so the single-id VLAN with id @vid_start is removed.
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*
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* Returns: %TRUE if the vlan was found and removed; %FALSE otherwise
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*
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* Since: 1.18
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**/
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gboolean
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nm_setting_bridge_port_remove_vlan_by_vid(NMSettingBridgePort *setting,
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guint16 vid_start,
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guint16 vid_end)
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{
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NMSettingBridgePortPrivate *priv;
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guint i;
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if (vid_end == 0)
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vid_end = vid_start;
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g_return_val_if_fail(NM_IS_SETTING_BRIDGE_PORT(setting), FALSE);
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priv = NM_SETTING_BRIDGE_PORT_GET_PRIVATE(setting);
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for (i = 0; i < priv->vlans->len; i++) {
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NMBridgeVlan *vlan = priv->vlans->pdata[i];
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guint16 v_start = 0;
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guint16 v_end = 0;
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nm_bridge_vlan_get_vid_range(vlan, &v_start, &v_end);
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if (v_start == vid_start && v_end == vid_end) {
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g_ptr_array_remove_index(priv->vlans, i);
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_notify(setting, PROP_VLANS);
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return TRUE;
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}
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}
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return FALSE;
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}
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/**
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* nm_setting_bridge_port_clear_vlans:
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* @setting: the #NMSettingBridgePort
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*
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* Removes all configured VLANs.
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*
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* Since: 1.18
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**/
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void
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nm_setting_bridge_port_clear_vlans(NMSettingBridgePort *setting)
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{
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NMSettingBridgePortPrivate *priv;
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g_return_if_fail(NM_IS_SETTING_BRIDGE_PORT(setting));
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priv = NM_SETTING_BRIDGE_PORT_GET_PRIVATE(setting);
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if (priv->vlans->len != 0) {
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g_ptr_array_set_size(priv->vlans, 0);
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_notify(setting, PROP_VLANS);
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}
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}
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GPtrArray *
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_nm_setting_bridge_port_get_vlans(NMSettingBridgePort *setting)
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{
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nm_assert(NM_IS_SETTING_BRIDGE_PORT(setting));
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return NM_SETTING_BRIDGE_PORT_GET_PRIVATE(setting)->vlans;
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}
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/*****************************************************************************/
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static gboolean
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verify(NMSetting *setting, NMConnection *connection, GError **error)
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{
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NMSettingBridgePortPrivate *priv;
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priv = NM_SETTING_BRIDGE_PORT_GET_PRIVATE(setting);
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if (connection) {
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NMSettingConnection *s_con;
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const char *slave_type;
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s_con = nm_connection_get_setting_connection(connection);
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if (!s_con) {
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g_set_error(error,
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NM_CONNECTION_ERROR,
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NM_CONNECTION_ERROR_MISSING_SETTING,
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_("missing setting"));
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g_prefix_error(error, "%s: ", NM_SETTING_CONNECTION_SETTING_NAME);
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return FALSE;
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}
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slave_type = nm_setting_connection_get_slave_type(s_con);
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if (slave_type && strcmp(slave_type, NM_SETTING_BRIDGE_SETTING_NAME)) {
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g_set_error(error,
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NM_CONNECTION_ERROR,
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NM_CONNECTION_ERROR_INVALID_PROPERTY,
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_("A connection with a '%s' setting must have the slave-type set to '%s'. "
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"Instead it is '%s'"),
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NM_SETTING_BRIDGE_PORT_SETTING_NAME,
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NM_SETTING_BRIDGE_SETTING_NAME,
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slave_type);
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g_prefix_error(error,
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"%s.%s: ",
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NM_SETTING_CONNECTION_SETTING_NAME,
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NM_SETTING_CONNECTION_SLAVE_TYPE);
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return FALSE;
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}
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}
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if (!_nm_utils_bridge_vlan_verify_list(priv->vlans,
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FALSE,
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error,
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NM_SETTING_BRIDGE_PORT_SETTING_NAME,
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NM_SETTING_BRIDGE_PORT_VLANS))
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return FALSE;
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/* Failures from here on are NORMALIZABLE... */
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if (!_nm_utils_bridge_vlan_verify_list(priv->vlans,
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TRUE,
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error,
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NM_SETTING_BRIDGE_PORT_SETTING_NAME,
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NM_SETTING_BRIDGE_PORT_VLANS))
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return NM_SETTING_VERIFY_NORMALIZABLE;
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return TRUE;
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}
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static NMTernary
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compare_fcn_vlans(_NM_SETT_INFO_PROP_COMPARE_FCN_ARGS _nm_nil)
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{
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if (set_b) {
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return _nm_utils_bridge_compare_vlans(NM_SETTING_BRIDGE_PORT_GET_PRIVATE(set_a)->vlans,
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NM_SETTING_BRIDGE_PORT_GET_PRIVATE(set_b)->vlans);
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}
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return TRUE;
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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, GValue *value, GParamSpec *pspec)
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{
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NMSettingBridgePortPrivate *priv = NM_SETTING_BRIDGE_PORT_GET_PRIVATE(object);
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switch (prop_id) {
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case PROP_VLANS:
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g_value_take_boxed(value,
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_nm_utils_copy_array(priv->vlans,
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(NMUtilsCopyFunc) nm_bridge_vlan_ref,
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(GDestroyNotify) nm_bridge_vlan_unref));
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break;
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default:
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_nm_setting_property_get_property_direct(object, prop_id, value, pspec);
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break;
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}
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}
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static void
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set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
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{
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NMSettingBridgePortPrivate *priv = NM_SETTING_BRIDGE_PORT_GET_PRIVATE(object);
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switch (prop_id) {
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case PROP_VLANS:
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g_ptr_array_unref(priv->vlans);
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priv->vlans = _nm_utils_copy_array(g_value_get_boxed(value),
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(NMUtilsCopyFunc) _nm_bridge_vlan_dup_and_seal,
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(GDestroyNotify) nm_bridge_vlan_unref);
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break;
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default:
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_nm_setting_property_set_property_direct(object, prop_id, value, pspec);
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break;
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}
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}
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/*****************************************************************************/
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static void
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nm_setting_bridge_port_init(NMSettingBridgePort *setting)
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{
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NMSettingBridgePortPrivate *priv = NM_SETTING_BRIDGE_PORT_GET_PRIVATE(setting);
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priv->vlans = g_ptr_array_new_with_free_func((GDestroyNotify) nm_bridge_vlan_unref);
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}
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/**
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* nm_setting_bridge_port_new:
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*
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* Creates a new #NMSettingBridgePort object with default values.
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*
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* Returns: (transfer full): the new empty #NMSettingBridgePort object
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**/
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NMSetting *
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nm_setting_bridge_port_new(void)
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{
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return g_object_new(NM_TYPE_SETTING_BRIDGE_PORT, 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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NMSettingBridgePortPrivate *priv = NM_SETTING_BRIDGE_PORT_GET_PRIVATE(object);
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g_ptr_array_unref(priv->vlans);
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G_OBJECT_CLASS(nm_setting_bridge_port_parent_class)->finalize(object);
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}
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static void
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nm_setting_bridge_port_class_init(NMSettingBridgePortClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS(klass);
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NMSettingClass *setting_class = NM_SETTING_CLASS(klass);
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GArray *properties_override = _nm_sett_info_property_override_create_array();
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object_class->get_property = get_property;
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object_class->set_property = set_property;
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object_class->finalize = finalize;
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setting_class->verify = verify;
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/**
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* NMSettingBridgePort:priority:
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*
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* The Spanning Tree Protocol (STP) priority of this bridge port.
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**/
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/* ---ifcfg-rh---
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* property: priority
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* variable: BRIDGING_OPTS: priority=
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* values: 0 - 63
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* default: 32
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* description: STP priority.
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* ---end---
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*/
|
|
_nm_setting_property_define_direct_uint32(properties_override,
|
|
obj_properties,
|
|
NM_SETTING_BRIDGE_PORT_PRIORITY,
|
|
PROP_PRIORITY,
|
|
NM_BRIDGE_PORT_PRIORITY_MIN,
|
|
NM_BRIDGE_PORT_PRIORITY_MAX,
|
|
NM_BRIDGE_PORT_PRIORITY_DEF,
|
|
NM_SETTING_PARAM_INFERRABLE,
|
|
NMSettingBridgePortPrivate,
|
|
priority);
|
|
|
|
/**
|
|
* NMSettingBridgePort:path-cost:
|
|
*
|
|
* The Spanning Tree Protocol (STP) port cost for destinations via this
|
|
* port.
|
|
**/
|
|
/* ---ifcfg-rh---
|
|
* property: path-cost
|
|
* variable: BRIDGING_OPTS: path_cost=
|
|
* values: 1 - 65535
|
|
* default: 100
|
|
* description: STP cost.
|
|
* ---end---
|
|
*/
|
|
_nm_setting_property_define_direct_uint32(properties_override,
|
|
obj_properties,
|
|
NM_SETTING_BRIDGE_PORT_PATH_COST,
|
|
PROP_PATH_COST,
|
|
NM_BRIDGE_PORT_PATH_COST_MIN,
|
|
NM_BRIDGE_PORT_PATH_COST_MAX,
|
|
NM_BRIDGE_PORT_PATH_COST_DEF,
|
|
NM_SETTING_PARAM_NONE,
|
|
NMSettingBridgePortPrivate,
|
|
path_cost);
|
|
|
|
/**
|
|
* NMSettingBridgePort:hairpin-mode:
|
|
*
|
|
* Enables or disables "hairpin mode" for the port, which allows frames to
|
|
* be sent back out through the port the frame was received on.
|
|
**/
|
|
/* ---ifcfg-rh---
|
|
* property: hairpin-mode
|
|
* variable: BRIDGING_OPTS: hairpin_mode=
|
|
* default: yes
|
|
* description: Hairpin mode of the bridge port.
|
|
* ---end---
|
|
*/
|
|
_nm_setting_property_define_direct_boolean(properties_override,
|
|
obj_properties,
|
|
NM_SETTING_BRIDGE_PORT_HAIRPIN_MODE,
|
|
PROP_HAIRPIN_MODE,
|
|
FALSE,
|
|
NM_SETTING_PARAM_INFERRABLE,
|
|
NMSettingBridgePortPrivate,
|
|
hairpin_mode);
|
|
|
|
/**
|
|
* NMSettingBridgePort:vlans: (type GPtrArray(NMBridgeVlan))
|
|
*
|
|
* Array of bridge VLAN objects. In addition to the VLANs
|
|
* specified here, the port will also have the default-pvid
|
|
* VLAN configured on the bridge by the bridge.vlan-default-pvid
|
|
* property.
|
|
*
|
|
* In nmcli the VLAN list can be specified with the following
|
|
* syntax:
|
|
*
|
|
* $vid [pvid] [untagged] [, $vid [pvid] [untagged]]...
|
|
*
|
|
* where $vid is either a single id between 1 and 4094 or a
|
|
* range, represented as a couple of ids separated by a dash.
|
|
*
|
|
* Since: 1.18
|
|
**/
|
|
/* ---ifcfg-rh---
|
|
* property: vlans
|
|
* variable: BRIDGE_PORT_VLANS
|
|
* description: List of VLANs on the bridge port
|
|
* example: BRIDGE_PORT_VLANS="1 pvid untagged,20,300-400 untagged"
|
|
* ---end---
|
|
*/
|
|
obj_properties[PROP_VLANS] = g_param_spec_boxed(NM_SETTING_BRIDGE_PORT_VLANS,
|
|
"",
|
|
"",
|
|
G_TYPE_PTR_ARRAY,
|
|
G_PARAM_READWRITE | NM_SETTING_PARAM_INFERRABLE
|
|
| G_PARAM_STATIC_STRINGS);
|
|
_nm_properties_override_gobj(
|
|
properties_override,
|
|
obj_properties[PROP_VLANS],
|
|
NM_SETT_INFO_PROPERT_TYPE_DBUS(NM_G_VARIANT_TYPE("aa{sv}"),
|
|
.compare_fcn = compare_fcn_vlans,
|
|
.to_dbus_fcn = _nm_utils_bridge_vlans_to_dbus,
|
|
.from_dbus_fcn = _nm_utils_bridge_vlans_from_dbus, ));
|
|
|
|
g_object_class_install_properties(object_class, _PROPERTY_ENUMS_LAST, obj_properties);
|
|
|
|
_nm_setting_class_commit(setting_class,
|
|
NM_META_SETTING_TYPE_BRIDGE_PORT,
|
|
NULL,
|
|
properties_override,
|
|
G_STRUCT_OFFSET(NMSettingBridgePort, _priv));
|
|
}
|