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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 Red Hat, Inc.
*/
#include "nm-default.h"
#include "nm-netns.h"
#include "nm-glib-aux/nm-dedup-multi.h"
#include "NetworkManagerUtils.h"
#include "nm-core-internal.h"
#include "platform/nm-platform.h"
#include "platform/nmp-netns.h"
#include "platform/nmp-rules-manager.h"
/*****************************************************************************/
NM_GOBJECT_PROPERTIES_DEFINE_BASE (
PROP_PLATFORM,
);
typedef struct {
NMPlatform *platform;
NMPNetns *platform_netns;
NMPRulesManager *rules_manager;
} NMNetnsPrivate;
struct _NMNetns {
GObject parent;
NMNetnsPrivate _priv;
};
struct _NMNetnsClass {
GObjectClass parent;
};
G_DEFINE_TYPE (NMNetns, nm_netns, G_TYPE_OBJECT);
#define NM_NETNS_GET_PRIVATE(self) _NM_GET_PRIVATE (self, NMNetns, NM_IS_NETNS)
/*****************************************************************************/
NM_DEFINE_SINGLETON_GETTER (NMNetns, nm_netns_get, NM_TYPE_NETNS);
/*****************************************************************************/
NMPNetns *
nm_netns_get_platform_netns (NMNetns *self)
{
return NM_NETNS_GET_PRIVATE (self)->platform_netns;
}
NMPlatform *
nm_netns_get_platform (NMNetns *self)
{
return NM_NETNS_GET_PRIVATE (self)->platform;
}
NMPRulesManager *
nm_netns_get_rules_manager (NMNetns *self)
{
return NM_NETNS_GET_PRIVATE (self)->rules_manager;
}
NMDedupMultiIndex *
nm_netns_get_multi_idx (NMNetns *self)
{
return nm_platform_get_multi_idx (NM_NETNS_GET_PRIVATE (self)->platform);
}
/*****************************************************************************/
static void
set_property (GObject *object, guint prop_id,
const GValue *value, GParamSpec *pspec)
{
NMNetns *self = NM_NETNS (object);
NMNetnsPrivate *priv = NM_NETNS_GET_PRIVATE (self);
switch (prop_id) {
case PROP_PLATFORM:
/* construct-only */
priv->platform = g_value_get_object (value) ?: NM_PLATFORM_GET;
if (!priv->platform)
g_return_if_reached ();
g_object_ref (priv->platform);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/*****************************************************************************/
static void
nm_netns_init (NMNetns *self)
{
}
static void
constructed (GObject *object)
{
NMNetns *self = NM_NETNS (object);
NMNetnsPrivate *priv = NM_NETNS_GET_PRIVATE (self);
if (!priv->platform)
g_return_if_reached ();
priv->platform_netns = nm_platform_netns_get (priv->platform);
priv->rules_manager = nmp_rules_manager_new (priv->platform);
/* Weakly track the default rules with a dummy user-tag. These
* rules are always weekly tracked... */
nmp_rules_manager_track_default (priv->rules_manager,
AF_UNSPEC,
0,
nm_netns_parent_class /* static dummy user-tag */);
/* Also weakly track all existing rules. These were added before NetworkManager
* starts, so they are probably none of NetworkManager's business.
*
* However note that during service restart, devices may stay up and rules kept.
* That means, after restart such rules may have been added by a previous run
* of NetworkManager, we just don't know.
*
* For that reason, whenever we will touch such rules later one, we make them
* fully owned and no longer weekly tracked. See %NMP_RULES_MANAGER_EXTERN_WEAKLY_TRACKED_USER_TAG. */
nmp_rules_manager_track_from_platform (priv->rules_manager,
NULL,
AF_UNSPEC,
0,
NMP_RULES_MANAGER_EXTERN_WEAKLY_TRACKED_USER_TAG);
G_OBJECT_CLASS (nm_netns_parent_class)->constructed (object);
}
NMNetns *
nm_netns_new (NMPlatform *platform)
{
return g_object_new (NM_TYPE_NETNS,
NM_NETNS_PLATFORM, platform,
NULL);
}
static void
dispose (GObject *object)
{
NMNetns *self = NM_NETNS (object);
NMNetnsPrivate *priv = NM_NETNS_GET_PRIVATE (self);
g_clear_object (&priv->platform);
nm_clear_pointer (&priv->rules_manager, nmp_rules_manager_unref);
G_OBJECT_CLASS (nm_netns_parent_class)->dispose (object);
}
static void
nm_netns_class_init (NMNetnsClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->constructed = constructed;
object_class->set_property = set_property;
object_class->dispose = dispose;
obj_properties[PROP_PLATFORM] =
g_param_spec_object (NM_NETNS_PLATFORM, "", "",
NM_TYPE_PLATFORM,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, _PROPERTY_ENUMS_LAST, obj_properties);
}
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