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// SPDX-License-Identifier: GPL-2.0+
/* NetworkManager -- Network link manager
*
* Copyright 2013 Red Hat, Inc.
*/
#include "nm-default.h"
#include <stdlib.h>
#include "nm-device-veth.h"
#include "nm-device-private.h"
#include "nm-manager.h"
#include "platform/nm-platform.h"
#include "nm-device-factory.h"
#include "nm-device-logging.h"
_LOG_DECLARE_SELF(NMDeviceVeth);
/*****************************************************************************/
struct _NMDeviceVeth {
NMDeviceEthernet parent;
};
struct _NMDeviceVethClass {
NMDeviceEthernetClass parent;
};
NM_GOBJECT_PROPERTIES_DEFINE (NMDeviceVeth,
PROP_PEER,
);
/*****************************************************************************/
G_DEFINE_TYPE (NMDeviceVeth, nm_device_veth, NM_TYPE_DEVICE_ETHERNET)
/*****************************************************************************/
static void
update_properties (NMDevice *device)
{
NMDevice *peer;
int ifindex, peer_ifindex;
ifindex = nm_device_get_ifindex (device);
if (!nm_platform_link_veth_get_properties (nm_device_get_platform (device), ifindex, &peer_ifindex))
peer_ifindex = 0;
nm_device_parent_set_ifindex (device, peer_ifindex);
peer = nm_device_parent_get_device (device);
if ( peer
&& NM_IS_DEVICE_VETH (peer)
&& nm_device_parent_get_ifindex (peer) <= 0)
update_properties (peer);
}
static gboolean
can_unmanaged_external_down (NMDevice *self)
{
/* Unless running in a container, an udev rule causes these to be
* unmanaged. If there's no udev then we're probably in a container
* and should IFF_UP and configure the veth ourselves even if we
* didn't create it. */
return FALSE;
}
static void
link_changed (NMDevice *device,
const NMPlatformLink *pllink)
{
NM_DEVICE_CLASS (nm_device_veth_parent_class)->link_changed (device, pllink);
update_properties (device);
}
/*****************************************************************************/
static void
nm_device_veth_init (NMDeviceVeth *self)
{
}
static void
parent_changed_notify (NMDevice *device,
int old_ifindex,
NMDevice *old_parent,
int new_ifindex,
NMDevice *new_parent)
{
NM_DEVICE_CLASS (nm_device_veth_parent_class)->parent_changed_notify (device,
old_ifindex,
old_parent,
new_ifindex,
new_parent);
_notify (NM_DEVICE_VETH (device), PROP_PEER);
}
static void
get_property (GObject *object, guint prop_id,
GValue *value, GParamSpec *pspec)
{
NMDeviceVeth *self = NM_DEVICE_VETH (object);
NMDevice *peer;
switch (prop_id) {
case PROP_PEER:
peer = nm_device_parent_get_device (NM_DEVICE (self));
if (peer && !NM_IS_DEVICE_VETH (peer))
peer = NULL;
nm_dbus_utils_g_value_set_object_path (value, peer);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static const NMDBusInterfaceInfoExtended interface_info_device_veth = {
.parent = NM_DEFINE_GDBUS_INTERFACE_INFO_INIT (
NM_DBUS_INTERFACE_DEVICE_VETH,
.signals = NM_DEFINE_GDBUS_SIGNAL_INFOS (
&nm_signal_info_property_changed_legacy,
),
.properties = NM_DEFINE_GDBUS_PROPERTY_INFOS (
NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("Peer", "o", NM_DEVICE_VETH_PEER),
),
),
.legacy_property_changed = TRUE,
};
static void
nm_device_veth_class_init (NMDeviceVethClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
NMDBusObjectClass *dbus_object_class = NM_DBUS_OBJECT_CLASS (klass);
NMDeviceClass *device_class = NM_DEVICE_CLASS (klass);
object_class->get_property = get_property;
dbus_object_class->interface_infos = NM_DBUS_INTERFACE_INFOS (&interface_info_device_veth);
device_class->connection_type_supported = NULL;
device_class->link_types = NM_DEVICE_DEFINE_LINK_TYPES (NM_LINK_TYPE_VETH);
device_class->can_unmanaged_external_down = can_unmanaged_external_down;
device_class->link_changed = link_changed;
device_class->parent_changed_notify = parent_changed_notify;
obj_properties[PROP_PEER] =
g_param_spec_string (NM_DEVICE_VETH_PEER, "", "",
NULL,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, _PROPERTY_ENUMS_LAST, obj_properties);
}
/*****************************************************************************/
#define NM_TYPE_VETH_DEVICE_FACTORY (nm_veth_device_factory_get_type ())
#define NM_VETH_DEVICE_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), NM_TYPE_VETH_DEVICE_FACTORY, NMVethDeviceFactory))
static NMDevice *
create_device (NMDeviceFactory *factory,
const char *iface,
const NMPlatformLink *plink,
NMConnection *connection,
gboolean *out_ignore)
{
return (NMDevice *) g_object_new (NM_TYPE_DEVICE_VETH,
NM_DEVICE_IFACE, iface,
NM_DEVICE_TYPE_DESC, "Veth",
NM_DEVICE_DEVICE_TYPE, NM_DEVICE_TYPE_VETH,
NM_DEVICE_LINK_TYPE, NM_LINK_TYPE_VETH,
NULL);
}
NM_DEVICE_FACTORY_DEFINE_INTERNAL (VETH, Veth, veth,
NM_DEVICE_FACTORY_DECLARE_LINK_TYPES (NM_LINK_TYPE_VETH),
factory_class->create_device = create_device;
);
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