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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* NetworkManager -- Network link manager
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Copyright 2017 Red Hat, Inc.
*/
#include "nm-default.h"
#include "nm-device-macsec.h"
#include "nm-device-private.h"
#include "platform/nm-platform.h"
#include "nm-device-factory.h"
#include "nm-manager.h"
#include "nm-core-internal.h"
#include "introspection/org.freedesktop.NetworkManager.Device.Macsec.h"
#include "nm-device-logging.h"
_LOG_DECLARE_SELF(NMDeviceMacsec);
/*****************************************************************************/
NM_GOBJECT_PROPERTIES_DEFINE (NMDeviceMacsec,
PROP_SCI,
PROP_CIPHER_SUITE,
PROP_ICV_LENGTH,
PROP_WINDOW,
PROP_ENCODING_SA,
PROP_ENCRYPT,
PROP_PROTECT,
PROP_INCLUDE_SCI,
PROP_ES,
PROP_SCB,
PROP_REPLAY_PROTECT,
PROP_VALIDATION,
);
typedef struct {
NMPlatformLnkMacsec props;
gulong parent_state_id;
} NMDeviceMacsecPrivate;
struct _NMDeviceMacsec {
NMDevice parent;
NMDeviceMacsecPrivate _priv;
};
struct _NMDeviceMacsecClass {
NMDeviceClass parent;
};
G_DEFINE_TYPE (NMDeviceMacsec, nm_device_macsec, NM_TYPE_DEVICE)
#define NM_DEVICE_MACSEC_GET_PRIVATE(self) _NM_GET_PRIVATE (self, NMDeviceMacsec, NM_IS_DEVICE_MACSEC)
/******************************************************************/
NM_UTILS_LOOKUP_STR_DEFINE_STATIC (validation_mode_to_string, guint8,
NM_UTILS_LOOKUP_DEFAULT_WARN ("<unknown>"),
NM_UTILS_LOOKUP_STR_ITEM (0, "disable"),
NM_UTILS_LOOKUP_STR_ITEM (1, "check"),
NM_UTILS_LOOKUP_STR_ITEM (2, "strict"),
);
static void
parent_state_changed (NMDevice *parent,
NMDeviceState new_state,
NMDeviceState old_state,
NMDeviceStateReason reason,
gpointer user_data)
{
NMDeviceMacsec *self = NM_DEVICE_MACSEC (user_data);
/* We'll react to our own carrier state notifications. Ignore the parent's. */
if (reason == NM_DEVICE_STATE_REASON_CARRIER)
return;
nm_device_set_unmanaged_by_flags (NM_DEVICE (self), NM_UNMANAGED_PARENT, !nm_device_get_managed (parent, FALSE), reason);
}
static void
parent_changed_notify (NMDevice *device,
int old_ifindex,
NMDevice *old_parent,
int new_ifindex,
NMDevice *new_parent)
{
NMDeviceMacsec *self = NM_DEVICE_MACSEC (device);
NMDeviceMacsecPrivate *priv = NM_DEVICE_MACSEC_GET_PRIVATE (self);
NM_DEVICE_CLASS (nm_device_macsec_parent_class)->parent_changed_notify (device,
old_ifindex,
old_parent,
new_ifindex,
new_parent);
/* note that @self doesn't have to clear @parent_state_id on dispose,
* because NMDevice's dispose() will unset the parent, which in turn calls
* parent_changed_notify(). */
nm_clear_g_signal_handler (old_parent, &priv->parent_state_id);
if (new_parent) {
priv->parent_state_id = g_signal_connect (new_parent,
NM_DEVICE_STATE_CHANGED,
G_CALLBACK (parent_state_changed),
device);
/* Set parent-dependent unmanaged flag */
nm_device_set_unmanaged_by_flags (device,
NM_UNMANAGED_PARENT,
!nm_device_get_managed (new_parent, FALSE),
NM_DEVICE_STATE_REASON_PARENT_MANAGED_CHANGED);
}
/* Recheck availability now that the parent has changed */
if (new_ifindex > 0) {
nm_device_queue_recheck_available (device,
NM_DEVICE_STATE_REASON_PARENT_CHANGED,
NM_DEVICE_STATE_REASON_PARENT_CHANGED);
}
}
static void
update_properties (NMDevice *device)
{
NMDeviceMacsec *self;
NMDeviceMacsecPrivate *priv;
const NMPlatformLink *plink = NULL;
const NMPlatformLnkMacsec *props = NULL;
int ifindex;
g_return_if_fail (NM_IS_DEVICE_MACSEC (device));
self = NM_DEVICE_MACSEC (device);
priv = NM_DEVICE_MACSEC_GET_PRIVATE (self);
ifindex = nm_device_get_ifindex (device);
g_return_if_fail (ifindex > 0);
props = nm_platform_link_get_lnk_macsec (NM_PLATFORM_GET, ifindex, &plink);
if (!props) {
_LOGW (LOGD_PLATFORM, "could not get macsec properties");
return;
}
g_object_freeze_notify ((GObject *) device);
if (priv->props.parent_ifindex != props->parent_ifindex)
nm_device_parent_set_ifindex (device, props->parent_ifindex);
#define CHECK_PROPERTY_CHANGED(field, prop) \
if (props->field != priv->props.field) \
_notify (self, prop)
CHECK_PROPERTY_CHANGED (sci, PROP_SCI);
CHECK_PROPERTY_CHANGED (cipher_suite, PROP_CIPHER_SUITE);
CHECK_PROPERTY_CHANGED (window, PROP_WINDOW);
CHECK_PROPERTY_CHANGED (icv_length, PROP_ICV_LENGTH);
CHECK_PROPERTY_CHANGED (encoding_sa, PROP_ENCODING_SA);
CHECK_PROPERTY_CHANGED (validation, PROP_VALIDATION);
CHECK_PROPERTY_CHANGED (encrypt, PROP_ENCRYPT);
CHECK_PROPERTY_CHANGED (protect, PROP_PROTECT);
CHECK_PROPERTY_CHANGED (include_sci, PROP_INCLUDE_SCI);
CHECK_PROPERTY_CHANGED (es, PROP_ES);
CHECK_PROPERTY_CHANGED (scb, PROP_SCB);
CHECK_PROPERTY_CHANGED (replay_protect, PROP_REPLAY_PROTECT);
priv->props = *props;
g_object_thaw_notify ((GObject *) device);
}
/******************************************************************/
static NMDeviceCapabilities
get_generic_capabilities (NMDevice *dev)
{
/* We assume MACsec interfaces always support carrier detect */
return NM_DEVICE_CAP_CARRIER_DETECT | NM_DEVICE_CAP_IS_SOFTWARE;
}
/******************************************************************/
static gboolean
is_available (NMDevice *device, NMDeviceCheckDevAvailableFlags flags)
{
if (!nm_device_parent_get_device (device))
return FALSE;
return NM_DEVICE_CLASS (nm_device_macsec_parent_class)->is_available (device, flags);
}
static void
link_changed (NMDevice *device,
const NMPlatformLink *pllink)
{
NM_DEVICE_CLASS (nm_device_macsec_parent_class)->link_changed (device, pllink);
update_properties (device);
}
/******************************************************************/
static void
get_property (GObject *object, guint prop_id,
GValue *value, GParamSpec *pspec)
{
NMDeviceMacsec *self = NM_DEVICE_MACSEC (object);
NMDeviceMacsecPrivate *priv = NM_DEVICE_MACSEC_GET_PRIVATE (self);
switch (prop_id) {
case PROP_SCI:
g_value_set_uint64 (value, priv->props.sci);
break;
case PROP_CIPHER_SUITE:
g_value_set_uint64 (value, priv->props.cipher_suite);
break;
case PROP_ICV_LENGTH:
g_value_set_uchar (value, priv->props.icv_length);
break;
case PROP_WINDOW:
g_value_set_uint (value, priv->props.window);
break;
case PROP_ENCODING_SA:
g_value_set_uchar (value, priv->props.encoding_sa);
break;
case PROP_ENCRYPT:
g_value_set_boolean (value, priv->props.encrypt);
break;
case PROP_PROTECT:
g_value_set_boolean (value, priv->props.protect);
break;
case PROP_INCLUDE_SCI:
g_value_set_boolean (value, priv->props.include_sci);
break;
case PROP_ES:
g_value_set_boolean (value, priv->props.es);
break;
case PROP_SCB:
g_value_set_boolean (value, priv->props.scb);
break;
case PROP_REPLAY_PROTECT:
g_value_set_boolean (value, priv->props.replay_protect);
break;
case PROP_VALIDATION:
g_value_set_string (value,
validation_mode_to_string (priv->props.validation));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
nm_device_macsec_init (NMDeviceMacsec * self)
{
}
static void
nm_device_macsec_class_init (NMDeviceMacsecClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
NMDeviceClass *parent_class = NM_DEVICE_CLASS (klass);
NM_DEVICE_CLASS_DECLARE_TYPES (klass, NULL, NM_LINK_TYPE_MACSEC)
object_class->get_property = get_property;
parent_class->get_generic_capabilities = get_generic_capabilities;
parent_class->is_available = is_available;
parent_class->link_changed = link_changed;
parent_class->parent_changed_notify = parent_changed_notify;
obj_properties[PROP_SCI] =
g_param_spec_uint64 (NM_DEVICE_MACSEC_SCI, "", "",
0, G_MAXUINT64, 0,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
obj_properties[PROP_CIPHER_SUITE] =
g_param_spec_uint64 (NM_DEVICE_MACSEC_CIPHER_SUITE, "", "",
0, G_MAXUINT64, 0,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
obj_properties[PROP_ICV_LENGTH] =
g_param_spec_uchar (NM_DEVICE_MACSEC_ICV_LENGTH, "", "",
0, G_MAXUINT8, 0,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
obj_properties[PROP_WINDOW] =
g_param_spec_uint (NM_DEVICE_MACSEC_WINDOW, "", "",
0, G_MAXUINT32, 0,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
obj_properties[PROP_ENCODING_SA] =
g_param_spec_uchar (NM_DEVICE_MACSEC_ENCODING_SA, "", "",
0, 3, 0,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
obj_properties[PROP_VALIDATION] =
g_param_spec_string (NM_DEVICE_MACSEC_VALIDATION, "", "",
NULL,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
obj_properties[PROP_ENCRYPT] =
g_param_spec_boolean (NM_DEVICE_MACSEC_ENCRYPT, "", "",
FALSE,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
obj_properties[PROP_PROTECT] =
g_param_spec_boolean (NM_DEVICE_MACSEC_PROTECT, "", "",
FALSE,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
obj_properties[PROP_INCLUDE_SCI] =
g_param_spec_boolean (NM_DEVICE_MACSEC_INCLUDE_SCI, "", "",
FALSE,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
obj_properties[PROP_ES] =
g_param_spec_boolean (NM_DEVICE_MACSEC_ES, "", "",
FALSE,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
obj_properties[PROP_SCB] =
g_param_spec_boolean (NM_DEVICE_MACSEC_SCB, "", "",
FALSE,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
obj_properties[PROP_REPLAY_PROTECT] =
g_param_spec_boolean (NM_DEVICE_MACSEC_REPLAY_PROTECT, "", "",
FALSE,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, _PROPERTY_ENUMS_LAST, obj_properties);
nm_exported_object_class_add_interface (NM_EXPORTED_OBJECT_CLASS (klass),
NMDBUS_TYPE_DEVICE_MACSEC_SKELETON,
NULL);
}
/*************************************************************/
#define NM_TYPE_MACSEC_DEVICE_FACTORY (nm_macsec_device_factory_get_type ())
#define NM_MACSEC_DEVICE_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), NM_TYPE_MACSEC_DEVICE_FACTORY, NMMacsecDeviceFactory))
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_MACSEC,
NM_DEVICE_IFACE, iface,
NM_DEVICE_TYPE_DESC, "Macsec",
NM_DEVICE_DEVICE_TYPE, NM_DEVICE_TYPE_MACSEC,
NM_DEVICE_LINK_TYPE, NM_LINK_TYPE_MACSEC,
NULL);
}
NM_DEVICE_FACTORY_DEFINE_INTERNAL (MACSEC, Macsec, macsec,
NM_DEVICE_FACTORY_DECLARE_LINK_TYPES (NM_LINK_TYPE_MACSEC),
factory_class->create_device = create_device;
)
|
