NetworkManager/libnm/nm-device-bridge.c

/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2012 Red Hat, Inc.
 */

#include "libnm/nm-default-libnm.h"

#include "nm-setting-bridge.h"

#include "nm-setting-connection.h"
#include "nm-utils.h"
#include "nm-device-bridge.h"
#include "nm-object-private.h"
#include "libnm-core-intern/nm-core-internal.h"

/*****************************************************************************/

NM_GOBJECT_PROPERTIES_DEFINE_BASE(PROP_CARRIER, PROP_SLAVES, );

typedef struct {
    NMLDBusPropertyAO slaves;
    bool              carrier;
} NMDeviceBridgePrivate;

struct _NMDeviceBridge {
    NMDevice              parent;
    NMDeviceBridgePrivate _priv;
};

struct _NMDeviceBridgeClass {
    NMDeviceClass parent;
};

G_DEFINE_TYPE(NMDeviceBridge, nm_device_bridge, NM_TYPE_DEVICE)

#define NM_DEVICE_BRIDGE_GET_PRIVATE(self) \
    _NM_GET_PRIVATE(self, NMDeviceBridge, NM_IS_DEVICE_BRIDGE, NMObject, NMDevice)

/*****************************************************************************/

/**
 * nm_device_bridge_get_hw_address: (skip)
 * @device: a #NMDeviceBridge
 *
 * Gets the hardware (MAC) address of the #NMDeviceBridge
 *
 * Returns: the hardware address. This is the internal string used by the
 * device, and must not be modified.
 *
 * Deprecated: 1.24: Use nm_device_get_hw_address() instead.
 **/
const char *
nm_device_bridge_get_hw_address(NMDeviceBridge *device)
{
    g_return_val_if_fail(NM_IS_DEVICE_BRIDGE(device), NULL);

    return nm_device_get_hw_address(NM_DEVICE(device));
}

/**
 * nm_device_bridge_get_carrier:
 * @device: a #NMDeviceBridge
 *
 * Whether the device has carrier.
 *
 * Returns: %TRUE if the device has carrier
 **/
gboolean
nm_device_bridge_get_carrier(NMDeviceBridge *device)
{
    g_return_val_if_fail(NM_IS_DEVICE_BRIDGE(device), FALSE);

    return NM_DEVICE_BRIDGE_GET_PRIVATE(device)->carrier;
}

/**
 * nm_device_bridge_get_slaves:
 * @device: a #NMDeviceBridge
 *
 * Gets the devices currently enslaved to @device.
 *
 * Returns: (element-type NMDevice): the #GPtrArray containing
 * #NMDevices that are slaves of @device. This is the internal
 * copy used by the device, and must not be modified.
 **/
const GPtrArray *
nm_device_bridge_get_slaves(NMDeviceBridge *device)
{
    g_return_val_if_fail(NM_IS_DEVICE_BRIDGE(device), FALSE);

    return nml_dbus_property_ao_get_objs_as_ptrarray(&NM_DEVICE_BRIDGE_GET_PRIVATE(device)->slaves);
}

static gboolean
connection_compatible(NMDevice *device, NMConnection *connection, GError **error)
{
    if (!NM_DEVICE_CLASS(nm_device_bridge_parent_class)
             ->connection_compatible(device, connection, error))
        return FALSE;

    if (!nm_connection_is_type(connection, NM_SETTING_BRIDGE_SETTING_NAME)) {
        if (_nm_connection_get_setting_bluetooth_for_nap(connection)
            && nm_connection_is_type(connection, NM_SETTING_BLUETOOTH_SETTING_NAME)) {
            /* a bluetooth NAP setting is a compatible connection for a bridge. */
        } else {
            g_set_error_literal(error,
                                NM_DEVICE_ERROR,
                                NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,
                                _("The connection was not a bridge connection."));
            return FALSE;
        }
    }

    /* FIXME: check ports? */

    return TRUE;
}

static GType
get_setting_type(NMDevice *device)
{
    return NM_TYPE_SETTING_BRIDGE;
}

/*****************************************************************************/

static void
nm_device_bridge_init(NMDeviceBridge *device)
{}

static void
get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
    NMDeviceBridge *device = NM_DEVICE_BRIDGE(object);

    switch (prop_id) {
    case PROP_CARRIER:
        g_value_set_boolean(value, nm_device_bridge_get_carrier(device));
        break;
    case PROP_SLAVES:
        g_value_take_boxed(value, _nm_utils_copy_object_array(nm_device_bridge_get_slaves(device)));
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
        break;
    }
}

const NMLDBusMetaIface _nml_dbus_meta_iface_nm_device_bridge = NML_DBUS_META_IFACE_INIT_PROP(
    NM_DBUS_INTERFACE_DEVICE_BRIDGE,
    nm_device_bridge_get_type,
    NML_DBUS_META_INTERFACE_PRIO_INSTANTIATE_30,
    NML_DBUS_META_IFACE_DBUS_PROPERTIES(
        NML_DBUS_META_PROPERTY_INIT_B("Carrier", PROP_CARRIER, NMDeviceBridge, _priv.carrier),
        NML_DBUS_META_PROPERTY_INIT_FCN("HwAddress",
                                        0,
                                        "s",
                                        _nm_device_notify_update_prop_hw_address),
        NML_DBUS_META_PROPERTY_INIT_AO_PROP("Slaves",
                                            PROP_SLAVES,
                                            NMDeviceBridge,
                                            _priv.slaves,
                                            nm_device_get_type), ), );

static void
nm_device_bridge_class_init(NMDeviceBridgeClass *klass)
{
    GObjectClass * object_class    = G_OBJECT_CLASS(klass);
    NMObjectClass *nm_object_class = NM_OBJECT_CLASS(klass);
    NMDeviceClass *device_class    = NM_DEVICE_CLASS(klass);

    object_class->get_property = get_property;

    _NM_OBJECT_CLASS_INIT_PRIV_PTR_DIRECT(nm_object_class, NMDeviceBridge);

    _NM_OBJECT_CLASS_INIT_PROPERTY_AO_FIELDS_1(nm_object_class, NMDeviceBridgePrivate, slaves);

    device_class->connection_compatible = connection_compatible;
    device_class->get_setting_type      = get_setting_type;

    /**
     * NMDeviceBridge:carrier:
     *
     * Whether the device has carrier.
     **/
    obj_properties[PROP_CARRIER] = g_param_spec_boolean(NM_DEVICE_BRIDGE_CARRIER,
                                                        "",
                                                        "",
                                                        FALSE,
                                                        G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);

    /**
     * NMDeviceBridge:slaves: (type GPtrArray(NMDevice))
     *
     * The devices enslaved to the bridge device.
     **/
    obj_properties[PROP_SLAVES] = g_param_spec_boxed(NM_DEVICE_BRIDGE_SLAVES,
                                                     "",
                                                     "",
                                                     G_TYPE_PTR_ARRAY,
                                                     G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);

    _nml_dbus_meta_class_init_with_properties(object_class, &_nml_dbus_meta_iface_nm_device_bridge);
}