/* SPDX-License-Identifier: LGPL-2.1-or-later */

/*

 * Copyright (C) 2007 - 2013 Red Hat, Inc.

 * Copyright (C) 2007 - 2008 Novell, Inc.

 * Copyright (C) 2009 One Laptop per Child

 */

#include "nm-default.h"

#include "nm-setting-olpc-mesh.h"

#include <linux/if_ether.h>

#include "nm-utils.h"

#include "nm-utils-private.h"

#include "nm-setting-private.h"

/**

 * SECTION:nm-setting-olpc-mesh

 * @short_description: Describes connection properties for OLPC-Mesh devices

 *

 * The #NMSettingOlpcMesh object is a #NMSetting subclass that describes properties

 * necessary for connection to OLPC-Mesh devices.

 **/

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

NM_GOBJECT_PROPERTIES_DEFINE_BASE(PROP_SSID, PROP_CHANNEL, PROP_DHCP_ANYCAST_ADDRESS, );

typedef struct {

    GBytes *ssid;

    char *  dhcp_anycast_addr;

    guint32 channel;

} NMSettingOlpcMeshPrivate;

G_DEFINE_TYPE(NMSettingOlpcMesh, nm_setting_olpc_mesh, NM_TYPE_SETTING)

#define NM_SETTING_OLPC_MESH_GET_PRIVATE(o) \

    (G_TYPE_INSTANCE_GET_PRIVATE((o), NM_TYPE_SETTING_OLPC_MESH, NMSettingOlpcMeshPrivate))

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

/**

 * nm_setting_olpc_mesh_get_ssid:

 * @setting: the #NMSettingOlpcMesh

 *

 * Returns: (transfer none):

 */

GBytes *

nm_setting_olpc_mesh_get_ssid(NMSettingOlpcMesh *setting)

{

    g_return_val_if_fail(NM_IS_SETTING_OLPC_MESH(setting), NULL);

    return NM_SETTING_OLPC_MESH_GET_PRIVATE(setting)->ssid;

}

guint32

nm_setting_olpc_mesh_get_channel(NMSettingOlpcMesh *setting)

{

    g_return_val_if_fail(NM_IS_SETTING_OLPC_MESH(setting), 0);

    return NM_SETTING_OLPC_MESH_GET_PRIVATE(setting)->channel;

}

const char *

nm_setting_olpc_mesh_get_dhcp_anycast_address(NMSettingOlpcMesh *setting)

{

    g_return_val_if_fail(NM_IS_SETTING_OLPC_MESH(setting), NULL);

    return NM_SETTING_OLPC_MESH_GET_PRIVATE(setting)->dhcp_anycast_addr;

}

static gboolean

verify(NMSetting *setting, NMConnection *connection, GError **error)

{

    NMSettingOlpcMeshPrivate *priv = NM_SETTING_OLPC_MESH_GET_PRIVATE(setting);

    gsize                     length;

    if (!priv->ssid) {

        g_set_error_literal(error,

                            NM_CONNECTION_ERROR,

                            NM_CONNECTION_ERROR_MISSING_PROPERTY,

                            _("property is missing"));

        g_prefix_error(error,

                       "%s.%s: ",

                       NM_SETTING_OLPC_MESH_SETTING_NAME,

                       NM_SETTING_OLPC_MESH_SSID);

        return FALSE;

    }

    length = g_bytes_get_size(priv->ssid);

    if (length == 0 || length > 32) {

        g_set_error_literal(error,

                            NM_CONNECTION_ERROR,

                            NM_CONNECTION_ERROR_INVALID_PROPERTY,

                            _("SSID length is out of range <1-32> bytes"));

        g_prefix_error(error,

                       "%s.%s: ",

                       NM_SETTING_OLPC_MESH_SETTING_NAME,

                       NM_SETTING_OLPC_MESH_SSID);

        return FALSE;

    }

    if (priv->channel == 0 || priv->channel > 13) {

        g_set_error(error,

                    NM_CONNECTION_ERROR,

                    NM_CONNECTION_ERROR_INVALID_PROPERTY,

                    _("'%d' is not a valid channel"),

                    priv->channel);

        g_prefix_error(error,

                       "%s.%s: ",

                       NM_SETTING_OLPC_MESH_SETTING_NAME,

                       NM_SETTING_OLPC_MESH_CHANNEL);

        return FALSE;

    }

    if (priv->dhcp_anycast_addr && !nm_utils_hwaddr_valid(priv->dhcp_anycast_addr, ETH_ALEN)) {

        g_set_error_literal(error,

                            NM_CONNECTION_ERROR,

                            NM_CONNECTION_ERROR_INVALID_PROPERTY,

                            _("property is invalid"));

        g_prefix_error(error,

                       "%s.%s: ",

                       NM_SETTING_OLPC_MESH_SETTING_NAME,

                       NM_SETTING_OLPC_MESH_DHCP_ANYCAST_ADDRESS);

        return FALSE;

    }

    return TRUE;

}

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

static void

get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)

{

    NMSettingOlpcMesh *setting = NM_SETTING_OLPC_MESH(object);

    switch (prop_id) {

    case PROP_SSID:

        g_value_set_boxed(value, nm_setting_olpc_mesh_get_ssid(setting));

        break;

    case PROP_CHANNEL:

        g_value_set_uint(value, nm_setting_olpc_mesh_get_channel(setting));

        break;

    case PROP_DHCP_ANYCAST_ADDRESS:

        g_value_set_string(value, nm_setting_olpc_mesh_get_dhcp_anycast_address(setting));

        break;

    default:

        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);

        break;

    }

}

static void

set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)

{

    NMSettingOlpcMeshPrivate *priv = NM_SETTING_OLPC_MESH_GET_PRIVATE(object);

    switch (prop_id) {

    case PROP_SSID:

        if (priv->ssid)

            g_bytes_unref(priv->ssid);

        priv->ssid = g_value_dup_boxed(value);

        break;

    case PROP_CHANNEL:

        priv->channel = g_value_get_uint(value);

        break;

    case PROP_DHCP_ANYCAST_ADDRESS:

        g_free(priv->dhcp_anycast_addr);

        priv->dhcp_anycast_addr = g_value_dup_string(value);

        break;

    default:

        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);

        break;

    }

}

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

static void

nm_setting_olpc_mesh_init(NMSettingOlpcMesh *setting)

{}

/**

 * nm_setting_olpc_mesh_new:

 *

 * Creates a new #NMSettingOlpcMesh object with default values.

 *

 * Returns: the new empty #NMSettingOlpcMesh object

 **/

NMSetting *

nm_setting_olpc_mesh_new(void)

{

    return g_object_new(NM_TYPE_SETTING_OLPC_MESH, NULL);

}

static void

finalize(GObject *object)

{

    NMSettingOlpcMeshPrivate *priv = NM_SETTING_OLPC_MESH_GET_PRIVATE(object);

    if (priv->ssid)

        g_bytes_unref(priv->ssid);

    g_free(priv->dhcp_anycast_addr);

    G_OBJECT_CLASS(nm_setting_olpc_mesh_parent_class)->finalize(object);

}

static void

nm_setting_olpc_mesh_class_init(NMSettingOlpcMeshClass *klass)

{

    GObjectClass *  object_class        = G_OBJECT_CLASS(klass);

    NMSettingClass *setting_class       = NM_SETTING_CLASS(klass);

    GArray *        properties_override = _nm_sett_info_property_override_create_array();

    g_type_class_add_private(klass, sizeof(NMSettingOlpcMeshPrivate));

    object_class->get_property = get_property;

    object_class->set_property = set_property;

    object_class->finalize     = finalize;

    setting_class->verify = verify;

    /**

     * NMSettingOlpcMesh:ssid:

     *

     * SSID of the mesh network to join.

     **/

    obj_properties[PROP_SSID] = g_param_spec_boxed(NM_SETTING_OLPC_MESH_SSID,

                                                   "",

                                                   "",

                                                   G_TYPE_BYTES,

                                                   G_PARAM_READWRITE | NM_SETTING_PARAM_INFERRABLE

                                                       | G_PARAM_STATIC_STRINGS);

    /**

     * NMSettingOlpcMesh:channel:

     *

     * Channel on which the mesh network to join is located.

     **/

    obj_properties[PROP_CHANNEL] =

        g_param_spec_uint(NM_SETTING_OLPC_MESH_CHANNEL,

                          "",

                          "",

                          0,

                          G_MAXUINT32,

                          0,

                          G_PARAM_READWRITE | NM_SETTING_PARAM_INFERRABLE | G_PARAM_STATIC_STRINGS);

    /**

     * NMSettingOlpcMesh:dhcp-anycast-address:

     *

     * Anycast DHCP MAC address used when requesting an IP address via DHCP.

     * The specific anycast address used determines which DHCP server class

     * answers the request.

     **/

    obj_properties[PROP_DHCP_ANYCAST_ADDRESS] =

        g_param_spec_string(NM_SETTING_OLPC_MESH_DHCP_ANYCAST_ADDRESS,

                            "",

                            "",

                            NULL,

                            G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);

    _nm_properties_override_gobj(properties_override,

                                 obj_properties[PROP_DHCP_ANYCAST_ADDRESS],

                                 &nm_sett_info_propert_type_mac_address);

    g_object_class_install_properties(object_class, _PROPERTY_ENUMS_LAST, obj_properties);

    _nm_setting_class_commit_full(setting_class,

                                  NM_META_SETTING_TYPE_OLPC_MESH,

                                  NULL,

                                  properties_override);

}