core: support macsec connections

Add code to nm-device-macsec.c to support the creation of macsec
connection. Most of the code for controlling wpa_supplicant is copied
from nm-device-ethernet.c and probably could be consolidated in some
ways.
This commit is contained in:
Beniamino Galvani 2016-06-30 18:20:50 +02:00
parent 0150b644ed
commit 808b1a0f61

View file

@ -22,11 +22,16 @@
#include "nm-device-macsec.h"
#include "nm-act-request.h"
#include "nm-device-private.h"
#include "platform/nm-platform.h"
#include "nm-device-factory.h"
#include "nm-manager.h"
#include "nm-setting-macsec.h"
#include "nm-core-internal.h"
#include "supplicant/nm-supplicant-manager.h"
#include "supplicant/nm-supplicant-interface.h"
#include "supplicant/nm-supplicant-config.h"
#include "introspection/org.freedesktop.NetworkManager.Device.Macsec.h"
@ -35,6 +40,18 @@ _LOG_DECLARE_SELF(NMDeviceMacsec);
/*****************************************************************************/
typedef struct Supplicant {
NMSupplicantManager *mgr;
NMSupplicantInterface *iface;
/* signal handler ids */
gulong iface_error_id;
gulong iface_state_id;
/* Timeouts and idles */
guint con_timeout_id;
} Supplicant;
NM_GOBJECT_PROPERTIES_DEFINE (NMDeviceMacsec,
PROP_SCI,
PROP_CIPHER_SUITE,
@ -53,6 +70,9 @@ NM_GOBJECT_PROPERTIES_DEFINE (NMDeviceMacsec,
typedef struct {
NMPlatformLnkMacsec props;
gulong parent_state_id;
Supplicant supplicant;
guint supplicant_timeout_id;
NMActRequestGetSecretsCallId macsec_secrets_id;
} NMDeviceMacsecPrivate;
struct _NMDeviceMacsec {
@ -70,6 +90,12 @@ G_DEFINE_TYPE (NMDeviceMacsec, nm_device_macsec, NM_TYPE_DEVICE)
/******************************************************************/
#define MACSEC_SECRETS_TRIES "macsec-secrets-tries"
static void macsec_secrets_cancel (NMDeviceMacsec *self);
/******************************************************************/
NM_UTILS_LOOKUP_STR_DEFINE_STATIC (validation_mode_to_string, guint8,
NM_UTILS_LOOKUP_DEFAULT_WARN ("<unknown>"),
NM_UTILS_LOOKUP_STR_ITEM (0, "disable"),
@ -183,6 +209,466 @@ update_properties (NMDevice *device)
g_object_thaw_notify ((GObject *) device);
}
static NMSupplicantConfig *
build_supplicant_config (NMDeviceMacsec *self, GError **error)
{
NMSupplicantConfig *config = NULL;
NMSettingMacsec *s_macsec;
NMSetting8021x *s_8021x;
NMConnection *connection;
const char *con_uuid;
guint32 mtu;
connection = nm_device_get_applied_connection (NM_DEVICE (self));
g_assert (connection);
con_uuid = nm_connection_get_uuid (connection);
mtu = nm_platform_link_get_mtu (NM_PLATFORM_GET,
nm_device_get_ifindex (NM_DEVICE (self)));
config = nm_supplicant_config_new ();
s_macsec = (NMSettingMacsec *)
nm_device_get_applied_setting (NM_DEVICE (self), NM_TYPE_SETTING_MACSEC);
if (!nm_supplicant_config_add_setting_macsec (config, s_macsec, error)) {
g_prefix_error (error, "macsec-setting: ");
g_object_unref (config);
return NULL;
}
if (nm_setting_macsec_get_mode (s_macsec) == NM_SETTING_MACSEC_MODE_EAP) {
s_8021x = nm_connection_get_setting_802_1x (connection);
if (!nm_supplicant_config_add_setting_8021x (config, s_8021x, con_uuid, mtu, TRUE, error)) {
g_prefix_error (error, "802-1x-setting: ");
g_clear_object (&config);
}
}
return config;
}
static void
supplicant_interface_clear_handlers (NMDeviceMacsec *self)
{
NMDeviceMacsecPrivate *priv = NM_DEVICE_MACSEC_GET_PRIVATE (self);
nm_clear_g_source (&priv->supplicant_timeout_id);
nm_clear_g_source (&priv->supplicant.con_timeout_id);
nm_clear_g_signal_handler (priv->supplicant.iface, &priv->supplicant.iface_error_id);
}
static void
supplicant_interface_release (NMDeviceMacsec *self)
{
NMDeviceMacsecPrivate *priv = NM_DEVICE_MACSEC_GET_PRIVATE (self);
supplicant_interface_clear_handlers (self);
nm_clear_g_signal_handler (priv->supplicant.iface, &priv->supplicant.iface_state_id);
if (priv->supplicant.iface) {
nm_supplicant_interface_disconnect (priv->supplicant.iface);
g_clear_object (&priv->supplicant.iface);
}
}
static void
supplicant_iface_connection_error_cb (NMSupplicantInterface *iface,
const char *name,
const char *message,
gpointer user_data)
{
NMDeviceMacsec *self = NM_DEVICE_MACSEC (user_data);
_LOGW (LOGD_DEVICE,
"Activation: association request to the supplicant failed: %s - %s",
name, message);
supplicant_interface_release (self);
nm_device_queue_state (NM_DEVICE (self),
NM_DEVICE_STATE_FAILED,
NM_DEVICE_STATE_REASON_SUPPLICANT_CONFIG_FAILED);
}
static void
macsec_secrets_cb (NMActRequest *req,
NMActRequestGetSecretsCallId call_id,
NMSettingsConnection *connection,
GError *error,
gpointer user_data)
{
NMDeviceMacsec *self = NM_DEVICE_MACSEC (user_data);
NMDevice *device = NM_DEVICE (self);
NMDeviceMacsecPrivate *priv;
g_return_if_fail (NM_IS_DEVICE_MACSEC (self));
g_return_if_fail (NM_IS_ACT_REQUEST (req));
priv = NM_DEVICE_MACSEC_GET_PRIVATE (self);
g_return_if_fail (priv->macsec_secrets_id == call_id);
priv->macsec_secrets_id = NULL;
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
return;
g_return_if_fail (req == nm_device_get_act_request (device));
g_return_if_fail (nm_device_get_state (device) == NM_DEVICE_STATE_NEED_AUTH);
g_return_if_fail (nm_act_request_get_settings_connection (req) == connection);
if (error) {
_LOGW (LOGD_ETHER, "%s", error->message);
nm_device_state_changed (device,
NM_DEVICE_STATE_FAILED,
NM_DEVICE_STATE_REASON_NO_SECRETS);
} else
nm_device_activate_schedule_stage1_device_prepare (device);
}
static void
macsec_secrets_cancel (NMDeviceMacsec *self)
{
NMDeviceMacsecPrivate *priv = NM_DEVICE_MACSEC_GET_PRIVATE (self);
if (priv->macsec_secrets_id)
nm_act_request_cancel_secrets (NULL, priv->macsec_secrets_id);
nm_assert (!priv->macsec_secrets_id);
}
static void
macsec_secrets_get_secrets (NMDeviceMacsec *self,
const char *setting_name,
NMSecretAgentGetSecretsFlags flags)
{
NMDeviceMacsecPrivate *priv = NM_DEVICE_MACSEC_GET_PRIVATE (self);
NMActRequest *req;
macsec_secrets_cancel (self);
req = nm_device_get_act_request (NM_DEVICE (self));
g_return_if_fail (NM_IS_ACT_REQUEST (req));
priv->macsec_secrets_id = nm_act_request_get_secrets (req,
TRUE,
setting_name,
flags,
NULL,
macsec_secrets_cb,
self);
g_return_if_fail (priv->macsec_secrets_id);
}
static gboolean
link_timeout_cb (gpointer user_data)
{
NMDeviceMacsec *self = NM_DEVICE_MACSEC (user_data);
NMDeviceMacsecPrivate *priv = NM_DEVICE_MACSEC_GET_PRIVATE (self);
NMDevice *dev = NM_DEVICE (self);
NMActRequest *req;
NMConnection *applied_connection;
const char *setting_name;
priv->supplicant_timeout_id = 0;
req = nm_device_get_act_request (dev);
if (nm_device_get_state (dev) == NM_DEVICE_STATE_ACTIVATED) {
nm_device_state_changed (dev,
NM_DEVICE_STATE_FAILED,
NM_DEVICE_STATE_REASON_SUPPLICANT_TIMEOUT);
return FALSE;
}
/* Disconnect event during initial authentication and credentials
* ARE checked - we are likely to have wrong key. Ask the user for
* another one.
*/
if (nm_device_get_state (dev) != NM_DEVICE_STATE_CONFIG)
goto time_out;
nm_active_connection_clear_secrets (NM_ACTIVE_CONNECTION (req));
applied_connection = nm_act_request_get_applied_connection (req);
setting_name = nm_connection_need_secrets (applied_connection, NULL);
if (!setting_name)
goto time_out;
_LOGI (LOGD_DEVICE | LOGD_ETHER,
"Activation: disconnected during authentication, asking for new key.");
supplicant_interface_release (self);
nm_device_state_changed (dev, NM_DEVICE_STATE_NEED_AUTH, NM_DEVICE_STATE_REASON_SUPPLICANT_DISCONNECT);
macsec_secrets_get_secrets (self, setting_name, NM_SECRET_AGENT_GET_SECRETS_FLAG_REQUEST_NEW);
return FALSE;
time_out:
_LOGW (LOGD_DEVICE | LOGD_ETHER, "link timed out.");
nm_device_state_changed (dev, NM_DEVICE_STATE_FAILED, NM_DEVICE_STATE_REASON_SUPPLICANT_DISCONNECT);
return FALSE;
}
static void
supplicant_iface_state_cb (NMSupplicantInterface *iface,
guint32 new_state,
guint32 old_state,
int disconnect_reason,
gpointer user_data)
{
NMDeviceMacsec *self = NM_DEVICE_MACSEC (user_data);
NMDeviceMacsecPrivate *priv = NM_DEVICE_MACSEC_GET_PRIVATE (self);
NMDevice *device = NM_DEVICE (self);
NMSupplicantConfig *config;
gboolean success = FALSE;
NMDeviceState devstate;
GError *error = NULL;
if (new_state == old_state)
return;
_LOGI (LOGD_DEVICE, "supplicant interface state: %s -> %s",
nm_supplicant_interface_state_to_string (old_state),
nm_supplicant_interface_state_to_string (new_state));
devstate = nm_device_get_state (device);
switch (new_state) {
case NM_SUPPLICANT_INTERFACE_STATE_READY:
config = build_supplicant_config (self, &error);
if (config) {
success = nm_supplicant_interface_set_config (priv->supplicant.iface, config, &error);
g_object_unref (config);
if (!success) {
_LOGE (LOGD_DEVICE,
"Activation: couldn't send security configuration to the supplicant: %s",
error->message);
g_clear_error (&error);
}
} else {
_LOGE (LOGD_DEVICE,
"Activation: couldn't build security configuration: %s",
error->message);
g_clear_error (&error);
}
if (!success) {
nm_device_state_changed (device,
NM_DEVICE_STATE_FAILED,
NM_DEVICE_STATE_REASON_SUPPLICANT_CONFIG_FAILED);
}
break;
case NM_SUPPLICANT_INTERFACE_STATE_COMPLETED:
supplicant_interface_clear_handlers (self);
nm_device_bring_up (device, TRUE, NULL);
/* If this is the initial association during device activation,
* schedule the next activation stage.
*/
if (devstate == NM_DEVICE_STATE_CONFIG) {
_LOGI (LOGD_DEVICE,
"Activation: Stage 2 of 5 (Device Configure) successful.");
nm_device_activate_schedule_stage3_ip_config_start (device);
}
break;
case NM_SUPPLICANT_INTERFACE_STATE_DISCONNECTED:
if ((devstate == NM_DEVICE_STATE_ACTIVATED) || nm_device_is_activating (device)) {
/* Start the link timeout so we allow some time for reauthentication */
if (!priv->supplicant_timeout_id)
priv->supplicant_timeout_id = g_timeout_add_seconds (15, link_timeout_cb, device);
}
break;
case NM_SUPPLICANT_INTERFACE_STATE_DOWN:
supplicant_interface_release (self);
if ((devstate == NM_DEVICE_STATE_ACTIVATED) || nm_device_is_activating (device)) {
nm_device_state_changed (device,
NM_DEVICE_STATE_FAILED,
NM_DEVICE_STATE_REASON_SUPPLICANT_FAILED);
}
break;
default:
;
}
}
static NMActStageReturn
handle_auth_or_fail (NMDeviceMacsec *self,
NMActRequest *req,
gboolean new_secrets)
{
const char *setting_name;
guint32 tries;
NMConnection *applied_connection;
applied_connection = nm_act_request_get_applied_connection (req);
tries = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (applied_connection), MACSEC_SECRETS_TRIES));
if (tries > 3)
return NM_ACT_STAGE_RETURN_FAILURE;
nm_device_state_changed (NM_DEVICE (self), NM_DEVICE_STATE_NEED_AUTH, NM_DEVICE_STATE_REASON_NONE);
nm_active_connection_clear_secrets (NM_ACTIVE_CONNECTION (req));
setting_name = nm_connection_need_secrets (applied_connection, NULL);
if (setting_name) {
macsec_secrets_get_secrets (self, setting_name,
NM_SECRET_AGENT_GET_SECRETS_FLAG_ALLOW_INTERACTION
| (new_secrets ? NM_SECRET_AGENT_GET_SECRETS_FLAG_REQUEST_NEW : 0));
g_object_set_data (G_OBJECT (applied_connection), MACSEC_SECRETS_TRIES, GUINT_TO_POINTER (++tries));
} else
_LOGI (LOGD_DEVICE, "Cleared secrets, but setting didn't need any secrets.");
return NM_ACT_STAGE_RETURN_POSTPONE;
}
static gboolean
supplicant_connection_timeout_cb (gpointer user_data)
{
NMDeviceMacsec *self = NM_DEVICE_MACSEC (user_data);
NMDeviceMacsecPrivate *priv = NM_DEVICE_MACSEC_GET_PRIVATE (self);
NMDevice *device = NM_DEVICE (self);
NMActRequest *req;
NMSettingsConnection *connection;
guint64 timestamp = 0;
gboolean new_secrets = TRUE;
priv->supplicant.con_timeout_id = 0;
/* Authentication failed; either driver problems, the encryption key is
* wrong, the passwords or certificates were wrong or the Ethernet switch's
* port is not configured for 802.1x. */
_LOGW (LOGD_DEVICE,
"Activation: (macsec) association took too long.");
supplicant_interface_release (self);
req = nm_device_get_act_request (device);
g_assert (req);
connection = nm_act_request_get_settings_connection (req);
g_assert (connection);
/* Ask for new secrets only if we've never activated this connection
* before. If we've connected before, don't bother the user with dialogs,
* just retry or fail, and if we never connect the user can fix the
* password somewhere else. */
if (nm_settings_connection_get_timestamp (connection, &timestamp))
new_secrets = !timestamp;
if (handle_auth_or_fail (self, req, new_secrets) == NM_ACT_STAGE_RETURN_POSTPONE)
_LOGW (LOGD_DEVICE, "Activation: (macsec) asking for new secrets");
else
nm_device_state_changed (device, NM_DEVICE_STATE_FAILED, NM_DEVICE_STATE_REASON_NO_SECRETS);
return FALSE;
}
static gboolean
supplicant_interface_init (NMDeviceMacsec *self)
{
NMDeviceMacsecPrivate *priv = NM_DEVICE_MACSEC_GET_PRIVATE (self);
NMDevice *parent;
parent = nm_device_parent_get_device (NM_DEVICE (self));
g_return_val_if_fail (parent, FALSE);
supplicant_interface_release (self);
priv->supplicant.iface = nm_supplicant_manager_create_interface (priv->supplicant.mgr,
nm_device_get_iface (parent),
NM_SUPPLICANT_DRIVER_MACSEC);
if (!priv->supplicant.iface) {
_LOGE (LOGD_DEVICE,
"Couldn't initialize supplicant interface");
return FALSE;
}
/* Listen for its state signals */
priv->supplicant.iface_state_id = g_signal_connect (priv->supplicant.iface,
NM_SUPPLICANT_INTERFACE_STATE,
G_CALLBACK (supplicant_iface_state_cb),
self);
/* Hook up error signal handler to capture association errors */
priv->supplicant.iface_error_id = g_signal_connect (priv->supplicant.iface,
NM_SUPPLICANT_INTERFACE_CONNECTION_ERROR,
G_CALLBACK (supplicant_iface_connection_error_cb),
self);
/* Set up a timeout on the connection attempt to fail it after 25 seconds */
priv->supplicant.con_timeout_id = g_timeout_add_seconds (25, supplicant_connection_timeout_cb, self);
return TRUE;
}
static NMActStageReturn
act_stage2_config (NMDevice *device, NMDeviceStateReason *reason)
{
NMDeviceMacsec *self = NM_DEVICE_MACSEC (device);
NMDeviceMacsecPrivate *priv = NM_DEVICE_MACSEC_GET_PRIVATE (self);
NMConnection *connection;
NMActStageReturn ret = NM_ACT_STAGE_RETURN_FAILURE;
const char *setting_name;
connection = nm_device_get_applied_connection (NM_DEVICE (self));
g_assert (connection);
if (!priv->supplicant.mgr)
priv->supplicant.mgr = g_object_ref (nm_supplicant_manager_get ());
/* If we need secrets, get them */
setting_name = nm_connection_need_secrets (connection, NULL);
if (setting_name) {
NMActRequest *req = nm_device_get_act_request (NM_DEVICE (self));
_LOGI (LOGD_DEVICE,
"Activation: connection '%s' has security, but secrets are required.",
nm_connection_get_id (connection));
ret = handle_auth_or_fail (self, req, FALSE);
if (ret != NM_ACT_STAGE_RETURN_POSTPONE)
*reason = NM_DEVICE_STATE_REASON_NO_SECRETS;
} else {
_LOGI (LOGD_DEVICE | LOGD_ETHER,
"Activation: connection '%s' requires no security. No secrets needed.",
nm_connection_get_id (connection));
if (supplicant_interface_init (self))
ret = NM_ACT_STAGE_RETURN_POSTPONE;
else
*reason = NM_DEVICE_STATE_REASON_CONFIG_FAILED;
}
return ret;
}
static void
deactivate (NMDevice *device)
{
NMDeviceMacsec *self = NM_DEVICE_MACSEC (device);
supplicant_interface_release (self);
}
static gboolean
check_connection_compatible (NMDevice *device, NMConnection *connection)
{
NMSettingMacsec *s_macsec;
if (!NM_DEVICE_CLASS (nm_device_macsec_parent_class)->check_connection_compatible (device, connection))
return FALSE;
s_macsec = nm_connection_get_setting_macsec (connection);
if (!s_macsec)
return FALSE;
return TRUE;
}
/******************************************************************/
static NMDeviceCapabilities
@ -202,6 +688,68 @@ is_available (NMDevice *device, NMDeviceCheckDevAvailableFlags flags)
return NM_DEVICE_CLASS (nm_device_macsec_parent_class)->is_available (device, flags);
}
static gboolean
create_and_realize (NMDevice *device,
NMConnection *connection,
NMDevice *parent,
const NMPlatformLink **out_plink,
GError **error)
{
const char *iface = nm_device_get_iface (device);
NMPlatformError plerr;
NMSettingMacsec *s_macsec;
NMPlatformLnkMacsec lnk = { };
int parent_ifindex;
const char *hw_addr;
union {
struct {
guint8 mac[6];
guint16 port;
} s;
guint64 u;
} sci;
s_macsec = nm_connection_get_setting_macsec (connection);
g_assert (s_macsec);
if (!parent) {
g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_FAILED,
"MACsec devices can not be created without a parent interface");
return FALSE;
}
lnk.encrypt = nm_setting_macsec_get_encrypt (s_macsec);
hw_addr = nm_device_get_hw_address (parent);
if (!hw_addr) {
g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_FAILED,
"can't read parent MAC");
return FALSE;
}
nm_utils_hwaddr_aton (hw_addr, sci.s.mac, ETH_ALEN);
sci.s.port = htons (nm_setting_macsec_get_port (s_macsec));
lnk.sci = be64toh (sci.u);
lnk.validation = nm_setting_macsec_get_validation (s_macsec);
parent_ifindex = nm_device_get_ifindex (parent);
g_warn_if_fail (parent_ifindex > 0);
plerr = nm_platform_link_macsec_add (NM_PLATFORM_GET, iface, parent_ifindex, &lnk, out_plink);
if (plerr != NM_PLATFORM_ERROR_SUCCESS) {
g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_CREATION_FAILED,
"Failed to create macsec interface '%s' for '%s': %s",
iface,
nm_connection_get_id (connection),
nm_platform_error_to_string (plerr));
return FALSE;
}
nm_device_parent_set_ifindex (device, parent_ifindex);
return TRUE;
}
static void
link_changed (NMDevice *device,
const NMPlatformLink *pllink)
@ -210,6 +758,35 @@ link_changed (NMDevice *device,
update_properties (device);
}
static void
clear_secrets_tries (NMDevice *device)
{
NMActRequest *req;
NMConnection *connection;
req = nm_device_get_act_request (device);
if (req) {
connection = nm_act_request_get_applied_connection (req);
/* Clear macsec secrets tries on success, failure, or when deactivating */
g_object_set_data (G_OBJECT (connection), MACSEC_SECRETS_TRIES, NULL);
}
}
static void
device_state_changed (NMDevice *device,
NMDeviceState new_state,
NMDeviceState old_state,
NMDeviceStateReason reason)
{
if (new_state > NM_DEVICE_STATE_ACTIVATED)
macsec_secrets_cancel (NM_DEVICE_MACSEC (device));
if ( new_state == NM_DEVICE_STATE_ACTIVATED
|| new_state == NM_DEVICE_STATE_FAILED
|| new_state == NM_DEVICE_STATE_DISCONNECTED)
clear_secrets_tries (device);
}
/******************************************************************/
static void
@ -268,6 +845,17 @@ nm_device_macsec_init (NMDeviceMacsec * self)
{
}
static void
dispose (GObject *object)
{
NMDeviceMacsec *self = NM_DEVICE_MACSEC (object);
macsec_secrets_cancel (self);
supplicant_interface_release (self);
G_OBJECT_CLASS (nm_device_macsec_parent_class)->dispose (object);
}
static void
nm_device_macsec_class_init (NMDeviceMacsecClass *klass)
{
@ -277,11 +865,20 @@ nm_device_macsec_class_init (NMDeviceMacsecClass *klass)
NM_DEVICE_CLASS_DECLARE_TYPES (klass, NULL, NM_LINK_TYPE_MACSEC)
object_class->get_property = get_property;
object_class->dispose = dispose;
parent_class->act_stage2_config = act_stage2_config;
parent_class->check_connection_compatible = check_connection_compatible;
parent_class->create_and_realize = create_and_realize;
parent_class->deactivate = deactivate;
parent_class->get_generic_capabilities = get_generic_capabilities;
parent_class->is_available = is_available;
parent_class->link_changed = link_changed;
parent_class->is_available = is_available;
parent_class->parent_changed_notify = parent_changed_notify;
parent_class->state_changed = device_state_changed;
parent_class->get_configured_mtu = nm_device_get_configured_mtu_for_wired;
parent_class->connection_type = NM_SETTING_MACSEC_SETTING_NAME;
obj_properties[PROP_SCI] =
g_param_spec_uint64 (NM_DEVICE_MACSEC_SCI, "", "",
@ -359,7 +956,54 @@ create_device (NMDeviceFactory *factory,
NULL);
}
static const char *
get_connection_parent (NMDeviceFactory *factory, NMConnection *connection)
{
NMSettingMacsec *s_macsec;
NMSettingWired *s_wired;
const char *parent = NULL;
g_return_val_if_fail (nm_connection_is_type (connection, NM_SETTING_MACSEC_SETTING_NAME), NULL);
s_macsec = nm_connection_get_setting_macsec (connection);
g_assert (s_macsec);
parent = nm_setting_macsec_get_parent (s_macsec);
if (parent)
return parent;
/* Try the hardware address from the MACsec connection's hardware setting */
s_wired = nm_connection_get_setting_wired (connection);
if (s_wired)
return nm_setting_wired_get_mac_address (s_wired);
return NULL;
}
static char *
get_connection_iface (NMDeviceFactory *factory,
NMConnection *connection,
const char *parent_iface)
{
NMSettingMacsec *s_macsec;
const char *ifname;
g_return_val_if_fail (nm_connection_is_type (connection, NM_SETTING_MACSEC_SETTING_NAME), NULL);
s_macsec = nm_connection_get_setting_macsec (connection);
g_assert (s_macsec);
if (!parent_iface)
return NULL;
ifname = nm_connection_get_interface_name (connection);
return g_strdup (ifname);
}
NM_DEVICE_FACTORY_DEFINE_INTERNAL (MACSEC, Macsec, macsec,
NM_DEVICE_FACTORY_DECLARE_LINK_TYPES (NM_LINK_TYPE_MACSEC),
NM_DEVICE_FACTORY_DECLARE_LINK_TYPES (NM_LINK_TYPE_MACSEC)
NM_DEVICE_FACTORY_DECLARE_SETTING_TYPES (NM_SETTING_MACSEC_SETTING_NAME),
factory_class->create_device = create_device;
factory_class->get_connection_parent = get_connection_parent;
factory_class->get_connection_iface = get_connection_iface;
)