mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
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de62da297e
The _GET_PRIVATE() macros are all implemented based on _NM_GET_PRIVATE(). That macro tries to be more type safe and uses _Generic() to do the right thing. Explicitly casting is not only unnecessary, it defeats these (static) type checks. Don't do that.
318 lines
11 KiB
C
318 lines
11 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2018 Red Hat, Inc.
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*/
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#include "nm-default.h"
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#include "nm-device-6lowpan.h"
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#include "nm-device-private.h"
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#include "settings/nm-settings.h"
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#include "platform/nm-platform.h"
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#include "nm-device-factory.h"
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#include "nm-setting-6lowpan.h"
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#include "nm-utils.h"
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#include "nm-device-logging.h"
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_LOG_DECLARE_SELF(NMDevice6Lowpan);
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/*****************************************************************************/
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typedef struct {
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gulong parent_state_id;
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} NMDevice6LowpanPrivate;
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struct _NMDevice6Lowpan {
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NMDevice parent;
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NMDevice6LowpanPrivate _priv;
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};
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struct _NMDevice6LowpanClass {
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NMDeviceClass parent;
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};
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G_DEFINE_TYPE (NMDevice6Lowpan, nm_device_6lowpan, NM_TYPE_DEVICE)
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#define NM_DEVICE_6LOWPAN_GET_PRIVATE(self) _NM_GET_PRIVATE (self, NMDevice6Lowpan, NM_IS_DEVICE_6LOWPAN, NMDevice)
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/*****************************************************************************/
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static void
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parent_state_changed (NMDevice *parent,
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NMDeviceState new_state,
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NMDeviceState old_state,
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NMDeviceStateReason reason,
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gpointer user_data)
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{
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NMDevice6Lowpan *self = NM_DEVICE_6LOWPAN (user_data);
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nm_device_set_unmanaged_by_flags (NM_DEVICE (self), NM_UNMANAGED_PARENT, !nm_device_get_managed (parent, FALSE), reason);
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}
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static void
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parent_changed_notify (NMDevice *device,
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int old_ifindex,
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NMDevice *old_parent,
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int new_ifindex,
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NMDevice *new_parent)
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{
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NMDevice6Lowpan *self = NM_DEVICE_6LOWPAN (device);
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NMDevice6LowpanPrivate *priv = NM_DEVICE_6LOWPAN_GET_PRIVATE (self);
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NM_DEVICE_CLASS (nm_device_6lowpan_parent_class)->parent_changed_notify (device, old_ifindex, old_parent, new_ifindex, new_parent);
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/* note that @self doesn't have to clear @parent_state_id on dispose,
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* because NMDevice's dispose() will unset the parent, which in turn calls
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* parent_changed_notify(). */
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nm_clear_g_signal_handler (old_parent, &priv->parent_state_id);
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if (new_parent) {
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priv->parent_state_id = g_signal_connect (new_parent,
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NM_DEVICE_STATE_CHANGED,
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G_CALLBACK (parent_state_changed),
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device);
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/* Set parent-dependent unmanaged flag */
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nm_device_set_unmanaged_by_flags (device,
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NM_UNMANAGED_PARENT,
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!nm_device_get_managed (new_parent, FALSE),
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NM_DEVICE_STATE_REASON_PARENT_MANAGED_CHANGED);
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}
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if (new_ifindex > 0) {
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/* Recheck availability now that the parent has changed */
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nm_device_queue_recheck_available (device,
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NM_DEVICE_STATE_REASON_PARENT_CHANGED,
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NM_DEVICE_STATE_REASON_PARENT_CHANGED);
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}
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}
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static gboolean
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create_and_realize (NMDevice *device,
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NMConnection *connection,
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NMDevice *parent,
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const NMPlatformLink **out_plink,
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GError **error)
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{
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const char *iface = nm_device_get_iface (device);
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NMSetting6Lowpan *s_6lowpan;
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int parent_ifindex;
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int r;
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s_6lowpan = NM_SETTING_6LOWPAN (nm_connection_get_setting (connection, NM_TYPE_SETTING_6LOWPAN));
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g_return_val_if_fail (s_6lowpan, FALSE);
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parent_ifindex = parent ? nm_device_get_ifindex (parent) : 0;
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if (parent_ifindex <= 0) {
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g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_MISSING_DEPENDENCIES,
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"6LoWPAN devices can not be created without a parent interface");
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g_return_val_if_fail (!parent, FALSE);
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return FALSE;
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}
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r = nm_platform_link_6lowpan_add (nm_device_get_platform (device), iface, parent_ifindex, out_plink);
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if (r < 0) {
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g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_CREATION_FAILED,
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"Failed to create 6lowpan interface '%s' for '%s': %s",
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iface,
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nm_connection_get_id (connection),
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nm_strerror (r));
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return FALSE;
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}
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nm_device_parent_set_ifindex (device, parent_ifindex);
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return TRUE;
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}
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static NMDeviceCapabilities
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get_generic_capabilities (NMDevice *dev)
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{
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return NM_DEVICE_CAP_CARRIER_DETECT | NM_DEVICE_CAP_IS_SOFTWARE;
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}
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static void
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link_changed (NMDevice *device,
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const NMPlatformLink *pllink)
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{
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NMDevice6Lowpan *self = NM_DEVICE_6LOWPAN (device);
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int parent = 0;
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int ifindex;
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NM_DEVICE_CLASS (nm_device_6lowpan_parent_class)->link_changed (device, pllink);
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ifindex = nm_device_get_ifindex (device);
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if (!nm_platform_link_6lowpan_get_properties (nm_device_get_platform (device), ifindex, &parent)) {
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_LOGW (LOGD_DEVICE, "could not get 6lowpan properties");
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return;
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}
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nm_device_parent_set_ifindex (device, parent);
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}
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static gboolean
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is_available (NMDevice *device, NMDeviceCheckDevAvailableFlags flags)
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{
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if (!nm_device_parent_get_device (device))
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return FALSE;
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return NM_DEVICE_CLASS (nm_device_6lowpan_parent_class)->is_available (device, flags);
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}
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static gboolean
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complete_connection (NMDevice *device,
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NMConnection *connection,
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const char *specific_object,
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NMConnection *const*existing_connections,
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GError **error)
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{
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NMSetting6Lowpan *s_6lowpan;
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nm_utils_complete_generic (nm_device_get_platform (device),
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connection,
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NM_SETTING_6LOWPAN_SETTING_NAME,
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existing_connections,
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NULL,
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_("6LOWPAN connection"),
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NULL,
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NULL,
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TRUE);
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s_6lowpan = NM_SETTING_6LOWPAN (nm_connection_get_setting (connection, NM_TYPE_SETTING_6LOWPAN));
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if (!s_6lowpan) {
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g_set_error_literal (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INVALID_CONNECTION,
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"A '6lowpan' setting is required.");
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return FALSE;
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}
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/* If there's no 6LoWPAN interface, no parent, and no hardware address in the
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* settings, then there's not enough information to complete the setting.
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*/
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if ( !nm_setting_6lowpan_get_parent (s_6lowpan)
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&& !nm_device_match_parent_hwaddr (device, connection, TRUE)) {
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g_set_error_literal (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INVALID_CONNECTION,
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"The '6lowpan' setting had no interface name, parent, or hardware address.");
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return FALSE;
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}
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return TRUE;
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}
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static void
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update_connection (NMDevice *device, NMConnection *connection)
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{
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NMSetting6Lowpan *s_6lowpan = NM_SETTING_6LOWPAN (nm_connection_get_setting (connection, NM_TYPE_SETTING_6LOWPAN));
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if (!s_6lowpan) {
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s_6lowpan = (NMSetting6Lowpan *) nm_setting_6lowpan_new ();
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nm_connection_add_setting (connection, (NMSetting *) s_6lowpan);
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}
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g_object_set (s_6lowpan,
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NM_SETTING_6LOWPAN_PARENT,
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nm_device_parent_find_for_connection (device,
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nm_setting_6lowpan_get_parent (s_6lowpan)),
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NULL);
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}
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/*****************************************************************************/
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static void
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nm_device_6lowpan_init (NMDevice6Lowpan *self)
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{
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}
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static const NMDBusInterfaceInfoExtended interface_info_device_6lowpan = {
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.parent = NM_DEFINE_GDBUS_INTERFACE_INFO_INIT (
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NM_DBUS_INTERFACE_DEVICE_6LOWPAN,
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.properties = NM_DEFINE_GDBUS_PROPERTY_INFOS (
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NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE ("HwAddress", "s", NM_DEVICE_HW_ADDRESS),
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NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE ("Parent", "o", NM_DEVICE_PARENT),
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),
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),
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};
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static void
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nm_device_6lowpan_class_init (NMDevice6LowpanClass *klass)
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{
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NMDBusObjectClass *dbus_object_class = NM_DBUS_OBJECT_CLASS (klass);
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NMDeviceClass *device_class = NM_DEVICE_CLASS (klass);
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dbus_object_class->interface_infos = NM_DBUS_INTERFACE_INFOS (&interface_info_device_6lowpan);
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device_class->connection_type_supported = NM_SETTING_6LOWPAN_SETTING_NAME;
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device_class->connection_type_check_compatible = NM_SETTING_6LOWPAN_SETTING_NAME;
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device_class->link_types = NM_DEVICE_DEFINE_LINK_TYPES (NM_LINK_TYPE_6LOWPAN);
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device_class->act_stage1_prepare_set_hwaddr_ethernet = TRUE;
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device_class->complete_connection = complete_connection;
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device_class->create_and_realize = create_and_realize;
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device_class->get_generic_capabilities = get_generic_capabilities;
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device_class->get_configured_mtu = nm_device_get_configured_mtu_for_wired;
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device_class->link_changed = link_changed;
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device_class->is_available = is_available;
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device_class->parent_changed_notify = parent_changed_notify;
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device_class->update_connection = update_connection;
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}
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/*****************************************************************************/
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#define NM_TYPE_6LOWPAN_DEVICE_FACTORY (nm_6lowpan_device_factory_get_type ())
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#define NM_6LOWPAN_DEVICE_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), NM_TYPE_6LOWPAN_DEVICE_FACTORY, NM6LowpanDeviceFactory))
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static NMDevice *
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create_device (NMDeviceFactory *factory,
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const char *iface,
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const NMPlatformLink *plink,
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NMConnection *connection,
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gboolean *out_ignore)
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{
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return (NMDevice *) g_object_new (NM_TYPE_DEVICE_6LOWPAN,
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NM_DEVICE_IFACE, iface,
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NM_DEVICE_TYPE_DESC, "6LoWPAN",
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NM_DEVICE_DEVICE_TYPE, NM_DEVICE_TYPE_6LOWPAN,
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NM_DEVICE_LINK_TYPE, NM_LINK_TYPE_6LOWPAN,
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NULL);
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}
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static const char *
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get_connection_parent (NMDeviceFactory *factory, NMConnection *connection)
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{
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NMSetting6Lowpan *s_6lowpan;
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g_return_val_if_fail (nm_connection_is_type (connection, NM_SETTING_6LOWPAN_SETTING_NAME), NULL);
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s_6lowpan = NM_SETTING_6LOWPAN (nm_connection_get_setting (connection, NM_TYPE_SETTING_6LOWPAN));
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g_assert (s_6lowpan);
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return nm_setting_6lowpan_get_parent (s_6lowpan);
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}
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static char *
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get_connection_iface (NMDeviceFactory *factory,
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NMConnection *connection,
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const char *parent_iface)
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{
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NMSetting6Lowpan *s_6lowpan;
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const char *ifname;
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g_return_val_if_fail (nm_connection_is_type (connection, NM_SETTING_6LOWPAN_SETTING_NAME), NULL);
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s_6lowpan = NM_SETTING_6LOWPAN (nm_connection_get_setting (connection, NM_TYPE_SETTING_6LOWPAN));
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g_assert (s_6lowpan);
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if (!parent_iface)
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return NULL;
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ifname = nm_connection_get_interface_name (connection);
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return g_strdup (ifname);
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}
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NM_DEVICE_FACTORY_DEFINE_INTERNAL (6LOWPAN, 6Lowpan, 6lowpan,
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NM_DEVICE_FACTORY_DECLARE_LINK_TYPES (NM_LINK_TYPE_6LOWPAN)
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NM_DEVICE_FACTORY_DECLARE_SETTING_TYPES (NM_SETTING_6LOWPAN_SETTING_NAME),
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factory_class->create_device = create_device;
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factory_class->get_connection_parent = get_connection_parent;
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factory_class->get_connection_iface = get_connection_iface;
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);
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