/* SPDX-License-Identifier: GPL-2.0-or-later */

/*

 * Copyright (C) 2017 Red Hat, Inc.

 */

#include "nm-default.h"

#include "nm-device-dummy.h"

#include <stdlib.h>

#include <sys/types.h>

#include "nm-act-request.h"

#include "nm-device-private.h"

#include "nm-ip4-config.h"

#include "platform/nm-platform.h"

#include "nm-device-factory.h"

#include "nm-setting-dummy.h"

#include "nm-core-internal.h"

#define _NMLOG_DEVICE_TYPE NMDeviceDummy

#include "nm-device-logging.h"

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

struct _NMDeviceDummy {

    NMDevice parent;

};

struct _NMDeviceDummyClass {

    NMDeviceClass parent;

};

G_DEFINE_TYPE(NMDeviceDummy, nm_device_dummy, NM_TYPE_DEVICE)

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

static NMDeviceCapabilities

get_generic_capabilities(NMDevice *dev)

{

    return NM_DEVICE_CAP_IS_SOFTWARE;

}

static gboolean

complete_connection(NMDevice *           device,

                    NMConnection *       connection,

                    const char *         specific_object,

                    NMConnection *const *existing_connections,

                    GError **            error)

{

    NMSettingDummy *s_dummy;

    nm_utils_complete_generic(nm_device_get_platform(device),

                              connection,

                              NM_SETTING_DUMMY_SETTING_NAME,

                              existing_connections,

                              NULL,

                              _("Dummy connection"),

                              NULL,

                              NULL,

                              TRUE);

    s_dummy = nm_connection_get_setting_dummy(connection);

    if (!s_dummy) {

        g_set_error_literal(error,

                            NM_DEVICE_ERROR,

                            NM_DEVICE_ERROR_INVALID_CONNECTION,

                            "A 'dummy' setting is required.");

        return FALSE;

    }

    return TRUE;

}

static void

update_connection(NMDevice *device, NMConnection *connection)

{

    NMSettingDummy *s_dummy = nm_connection_get_setting_dummy(connection);

    if (!s_dummy) {

        s_dummy = (NMSettingDummy *) nm_setting_dummy_new();

        nm_connection_add_setting(connection, (NMSetting *) s_dummy);

    }

}

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);

    NMSettingDummy *s_dummy;

    int             r;

    s_dummy = nm_connection_get_setting_dummy(connection);

    g_assert(s_dummy);

    r = nm_platform_link_dummy_add(nm_device_get_platform(device), iface, out_plink);

    if (r < 0) {

        g_set_error(error,

                    NM_DEVICE_ERROR,

                    NM_DEVICE_ERROR_CREATION_FAILED,

                    "Failed to create dummy interface '%s' for '%s': %s",

                    iface,

                    nm_connection_get_id(connection),

                    nm_strerror(r));

        return FALSE;

    }

    return TRUE;

}

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

static void

nm_device_dummy_init(NMDeviceDummy *self)

{}

static const NMDBusInterfaceInfoExtended interface_info_device_dummy = {

    .parent = NM_DEFINE_GDBUS_INTERFACE_INFO_INIT(

        NM_DBUS_INTERFACE_DEVICE_DUMMY,

        .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("HwAddress",

                                                             "s",

                                                             NM_DEVICE_HW_ADDRESS), ), ),

    .legacy_property_changed = TRUE,

};

static void

nm_device_dummy_class_init(NMDeviceDummyClass *klass)

{

    NMDBusObjectClass *dbus_object_class = NM_DBUS_OBJECT_CLASS(klass);

    NMDeviceClass *    device_class      = NM_DEVICE_CLASS(klass);

    dbus_object_class->interface_infos = NM_DBUS_INTERFACE_INFOS(&interface_info_device_dummy);

    device_class->connection_type_supported        = NM_SETTING_DUMMY_SETTING_NAME;

    device_class->connection_type_check_compatible = NM_SETTING_DUMMY_SETTING_NAME;

    device_class->link_types = NM_DEVICE_DEFINE_LINK_TYPES(NM_LINK_TYPE_DUMMY);

    device_class->complete_connection                    = complete_connection;

    device_class->create_and_realize                     = create_and_realize;

    device_class->get_generic_capabilities               = get_generic_capabilities;

    device_class->update_connection                      = update_connection;

    device_class->act_stage1_prepare_set_hwaddr_ethernet = TRUE;

    device_class->get_configured_mtu                     = nm_device_get_configured_mtu_for_wired;

}

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

#define NM_TYPE_DUMMY_DEVICE_FACTORY (nm_dummy_device_factory_get_type())

#define NM_DUMMY_DEVICE_FACTORY(obj) \

    (G_TYPE_CHECK_INSTANCE_CAST((obj), NM_TYPE_DUMMY_DEVICE_FACTORY, NMDummyDeviceFactory))

static NMDevice *

create_device(NMDeviceFactory *     factory,

              const char *          iface,

              const NMPlatformLink *plink,

              NMConnection *        connection,

              gboolean *            out_ignore)

{

    return g_object_new(NM_TYPE_DEVICE_DUMMY,

                        NM_DEVICE_IFACE,

                        iface,

                        NM_DEVICE_TYPE_DESC,

                        "Dummy",

                        NM_DEVICE_DEVICE_TYPE,

                        NM_DEVICE_TYPE_DUMMY,

                        NM_DEVICE_LINK_TYPE,

                        NM_LINK_TYPE_DUMMY,

                        NULL);

}

NM_DEVICE_FACTORY_DEFINE_INTERNAL(

    DUMMY,

    Dummy,

    dummy,

    NM_DEVICE_FACTORY_DECLARE_LINK_TYPES(NM_LINK_TYPE_DUMMY)

        NM_DEVICE_FACTORY_DECLARE_SETTING_TYPES(NM_SETTING_DUMMY_SETTING_NAME),

    factory_class->create_device = create_device;);