/* SPDX-License-Identifier: LGPL-2.1+ */

/*

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

 * Copyright (C) 2007 - 2012 Red Hat, Inc.

 */

#include "nm-default.h"

#include "nm-device-bt.h"

#include <linux/if_ether.h>

#include "nm-setting-connection.h"

#include "nm-setting-bluetooth.h"

#include "nm-utils.h"

#include "nm-object-private.h"

#include "nm-enum-types.h"

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

NM_GOBJECT_PROPERTIES_DEFINE_BASE(PROP_NAME, PROP_BT_CAPABILITIES, );

typedef struct {

    char *  name;

    guint32 bt_capabilities;

} NMDeviceBtPrivate;

struct _NMDeviceBt {

    NMDevice          parent;

    NMDeviceBtPrivate _priv;

};

struct _NMDeviceBtClass {

    NMDeviceClass parent;

};

G_DEFINE_TYPE(NMDeviceBt, nm_device_bt, NM_TYPE_DEVICE)

#define NM_DEVICE_BT_GET_PRIVATE(self) \

    _NM_GET_PRIVATE(self, NMDeviceBt, NM_IS_DEVICE_BT, NMObject, NMDevice)

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

/**

 * nm_device_bt_get_hw_address: (skip)

 * @device: a #NMDeviceBt

 *

 * Gets the hardware (MAC) address of the #NMDeviceBt

 *

 * 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_bt_get_hw_address(NMDeviceBt *device)

{

    g_return_val_if_fail(NM_IS_DEVICE_BT(device), NULL);

    return nm_device_get_hw_address(NM_DEVICE(device));

}

/**

 * nm_device_bt_get_name:

 * @device: a #NMDeviceBt

 *

 * Gets the name of the #NMDeviceBt.

 *

 * Returns: the name of the device

 **/

const char *

nm_device_bt_get_name(NMDeviceBt *device)

{

    g_return_val_if_fail(NM_IS_DEVICE_BT(device), NULL);

    return NM_DEVICE_BT_GET_PRIVATE(device)->name;

}

/**

 * nm_device_bt_get_capabilities:

 * @device: a #NMDeviceBt

 *

 * Returns the Bluetooth device's usable capabilities.

 *

 * Returns: a combination of #NMBluetoothCapabilities

 **/

NMBluetoothCapabilities

nm_device_bt_get_capabilities(NMDeviceBt *device)

{

    g_return_val_if_fail(NM_IS_DEVICE_BT(device), NM_BT_CAPABILITY_NONE);

    return NM_DEVICE_BT_GET_PRIVATE(device)->bt_capabilities;

}

static NMBluetoothCapabilities

get_connection_bt_type(NMConnection *connection)

{

    NMSettingBluetooth *s_bt;

    const char *        bt_type;

    s_bt = nm_connection_get_setting_bluetooth(connection);

    if (!s_bt)

        return NM_BT_CAPABILITY_NONE;

    bt_type = nm_setting_bluetooth_get_connection_type(s_bt);

    g_assert(bt_type);

    if (!strcmp(bt_type, NM_SETTING_BLUETOOTH_TYPE_DUN))

        return NM_BT_CAPABILITY_DUN;

    else if (!strcmp(bt_type, NM_SETTING_BLUETOOTH_TYPE_PANU))

        return NM_BT_CAPABILITY_NAP;

    return NM_BT_CAPABILITY_NONE;

}

static gboolean

connection_compatible(NMDevice *device, NMConnection *connection, GError **error)

{

    NMSettingBluetooth *    s_bt;

    const char *            hw_addr, *setting_addr;

    NMBluetoothCapabilities dev_caps;

    NMBluetoothCapabilities bt_type;

    if (!NM_DEVICE_CLASS(nm_device_bt_parent_class)

             ->connection_compatible(device, connection, error))

        return FALSE;

    if (!nm_connection_is_type(connection, NM_SETTING_BLUETOOTH_SETTING_NAME)

        || !(s_bt = nm_connection_get_setting_bluetooth(connection))) {

        g_set_error(error,

                    NM_DEVICE_ERROR,

                    NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,

                    _("The connection was not a Bluetooth connection."));

        return FALSE;

    }

    if (nm_streq0(nm_setting_bluetooth_get_connection_type(s_bt), NM_SETTING_BLUETOOTH_TYPE_NAP)) {

        g_set_error(error,

                    NM_DEVICE_ERROR,

                    NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,

                    _("The connection is of Bluetooth NAP type."));

        return FALSE;

    }

    /* Check BT address */

    hw_addr = nm_device_get_hw_address(device);

    if (hw_addr) {

        if (!nm_utils_hwaddr_valid(hw_addr, ETH_ALEN)) {

            g_set_error_literal(error,

                                NM_DEVICE_ERROR,

                                NM_DEVICE_ERROR_FAILED,

                                _("Invalid device Bluetooth address."));

            return FALSE;

        }

        setting_addr = nm_setting_bluetooth_get_bdaddr(s_bt);

        if (setting_addr && !nm_utils_hwaddr_matches(setting_addr, -1, hw_addr, -1)) {

            g_set_error_literal(

                error,

                NM_DEVICE_ERROR,

                NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,

                _("The Bluetooth addresses of the device and the connection didn't match."));

            return FALSE;

        }

    }

    dev_caps = nm_device_bt_get_capabilities(NM_DEVICE_BT(device));

    bt_type  = get_connection_bt_type(connection);

    if (!(bt_type & dev_caps)) {

        g_set_error_literal(

            error,

            NM_DEVICE_ERROR,

            NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,

            _("The device is lacking Bluetooth capabilities required by the connection."));

        return FALSE;

    }

    return TRUE;

}

static GType

get_setting_type(NMDevice *device)

{

    return NM_TYPE_SETTING_BLUETOOTH;

}

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

static void

nm_device_bt_init(NMDeviceBt *device)

{}

static void

finalize(GObject *object)

{

    NMDeviceBtPrivate *priv = NM_DEVICE_BT_GET_PRIVATE(object);

    g_free(priv->name);

    G_OBJECT_CLASS(nm_device_bt_parent_class)->finalize(object);

}

static void

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

{

    NMDeviceBt *device = NM_DEVICE_BT(object);

    switch (prop_id) {

    case PROP_NAME:

        g_value_set_string(value, nm_device_bt_get_name(device));

        break;

    case PROP_BT_CAPABILITIES:

        g_value_set_flags(value, nm_device_bt_get_capabilities(device));

        break;

    default:

        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);

        break;

    }

}

const NMLDBusMetaIface _nml_dbus_meta_iface_nm_device_bluetooth = NML_DBUS_META_IFACE_INIT_PROP(

    NM_DBUS_INTERFACE_DEVICE_BLUETOOTH,

    nm_device_bt_get_type,

    NML_DBUS_META_INTERFACE_PRIO_INSTANTIATE_30,

    NML_DBUS_META_IFACE_DBUS_PROPERTIES(

        NML_DBUS_META_PROPERTY_INIT_U("BtCapabilities",

                                      PROP_BT_CAPABILITIES,

                                      NMDeviceBt,

                                      _priv.bt_capabilities),

        NML_DBUS_META_PROPERTY_INIT_FCN("HwAddress",

                                        0,

                                        "s",

                                        _nm_device_notify_update_prop_hw_address),

        NML_DBUS_META_PROPERTY_INIT_S("Name", PROP_NAME, NMDeviceBt, _priv.name), ), );

static void

nm_device_bt_class_init(NMDeviceBtClass *bt_class)

{

    GObjectClass * object_class = G_OBJECT_CLASS(bt_class);

    NMDeviceClass *device_class = NM_DEVICE_CLASS(bt_class);

    object_class->get_property = get_property;

    object_class->finalize     = finalize;

    device_class->connection_compatible = connection_compatible;

    device_class->get_setting_type      = get_setting_type;

    /**

     * NMDeviceBt:name:

     *

     * The name of the bluetooth device.

     **/

    obj_properties[PROP_NAME] = g_param_spec_string(NM_DEVICE_BT_NAME,

                                                    "",

                                                    "",

                                                    NULL,

                                                    G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);

    /**

     * NMDeviceBt:bt-capabilities:

     *

     * The device's bluetooth capabilities, a combination of #NMBluetoothCapabilities.

     **/

    obj_properties[PROP_BT_CAPABILITIES] =

        g_param_spec_flags(NM_DEVICE_BT_CAPABILITIES,

                           "",

                           "",

                           NM_TYPE_BLUETOOTH_CAPABILITIES,

                           NM_BT_CAPABILITY_NONE,

                           G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);

    _nml_dbus_meta_class_init_with_properties(object_class,

                                              &_nml_dbus_meta_iface_nm_device_bluetooth);

}