feat(dbus): Add dphys-swapfile configuration functionality

Implemented `configure_dphys_swapfile` to manage the dphys-swapfile
service, including automatic swapfile removal when the service is
disabled. Updated feature registry to support dphys-swapfile
configuration.

data/dbus-policy/com.revolutionpi.middleware1.conf

@@ -1,4 +1,4 @@
-<!-- /usr/share/dbus-1/system.d/com.revolutionpi.middleware1.conf -->
+<!-- /etc/dbus-1/system.d/revpi-middleware.conf -->
 <busconfig>
     <!-- Allow full access to root as the bus owner -->
     <policy user="root">
@@ -12,7 +12,7 @@
         <allow send_destination="com.revolutionpi.middleware1"
                send_interface="org.freedesktop.DBus.Introspectable"/>
         <allow send_destination="com.revolutionpi.middleware1"
-               send_interface="com.revolutionpi.middleware1.PiControl"/>
+               send_interface="com.revolutionpi.middleware1.picontrol"/>
     </policy>
 
     <!-- Standard-Policy -->

src/revpi_middleware/cli_commands/cli_base.py

@@ -29,11 +29,6 @@ def setup_command_line_arguments():
         help="RevPi PiControl object",
     )
     cli_picontrol.add_subparsers(obj_picontrol)
-    obj_config = rpictl_obj.add_parser(
-        "config",
-        help="RevPi configuration object (revpi-config)",
-    )
-    cli_config.add_subparsers(obj_config)
 
 
 def main() -> int:
@@ -44,9 +39,6 @@ def main() -> int:
     if obj == "picontrol":
         rc = cli_picontrol.main()
 
-    elif obj == "config":
-        rc = cli_config.main()
-
     else:
         log.error(f"Unknown object: {obj}")
         rc = 1

src/revpi_middleware/cli_commands/cli_config.py

@@ -1,93 +0,0 @@
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
-# SPDX-License-Identifier: GPL-2.0-or-later
-"""Command-Line for the picontrol object of CLI."""
-from argparse import ArgumentParser
-from logging import getLogger
-
-from .dbus_helper import BusType, get_properties, simple_call
-from .. import proginit as pi
-from ..dbus_middleware1 import extend_interface
-
-log = getLogger(__name__)
-
-
-def add_subparsers(parent_parser: ArgumentParser):
-    parent_parser.add_argument(
-        "action",
-        choices=["enable", "disable", "status", "available", "list-features"],
-        help="Action to be executed: enable, disable, status or available. "
-             "To get all available features, use 'list-features'.",
-    )
-    parent_parser.add_argument(
-        "feature",
-        nargs="?",
-        default="",
-        help="Name of the feature to configer. To list all features use 'list-features' as action.",
-    )
-
-
-def main() -> int:
-    action = pi.pargs.action
-    dbus_value = False
-    try:
-
-        if action == "list-features":
-            dbus_value = get_properties(
-                "available_features",
-                interface=extend_interface("RevpiConfig"),
-                bus_type=BusType.SESSION if pi.pargs.use_session_bus else BusType.SYSTEM,
-            )
-            for feature in dbus_value:
-                print(feature)
-
-            return 0
-
-        # For the following actions, a feature name is required
-        if pi.pargs.feature == "":
-            raise Exception("Feature name is required")
-
-        if action == "enable":
-            simple_call(
-                "Enable",
-                pi.pargs.feature,
-                interface=extend_interface("RevpiConfig"),
-                bus_type=BusType.SESSION if pi.pargs.use_session_bus else BusType.SYSTEM,
-            )
-
-        elif action == "disable":
-            simple_call(
-                "Disable",
-                pi.pargs.feature,
-                interface=extend_interface("RevpiConfig"),
-                bus_type=BusType.SESSION if pi.pargs.use_session_bus else BusType.SYSTEM,
-            )
-
-        elif action == "status":
-            dbus_value = simple_call(
-                "GetStatus",
-                pi.pargs.feature,
-                interface=extend_interface("RevpiConfig"),
-                bus_type=BusType.SESSION if pi.pargs.use_session_bus else BusType.SYSTEM,
-            )
-
-        elif action == "available":
-            dbus_value = simple_call(
-                "GetAvailability",
-                pi.pargs.feature,
-                interface=extend_interface("RevpiConfig"),
-                bus_type=BusType.SESSION if pi.pargs.use_session_bus else BusType.SYSTEM,
-            )
-
-        else:
-            raise Exception(f"Unknown action: {action}")
-
-    except Exception as e:
-        log.error(f"Error: {e}")
-        return 1
-
-    log.debug(
-        f"D-Bus call of method {action} for feature {pi.pargs.feature} returned: {dbus_value}"
-    )
-    print(int(dbus_value))
-
-    return 0

src/revpi_middleware/cli_commands/dbus_helper.py

@@ -17,18 +17,6 @@ class BusType(Enum):
     SYSTEM = "system"
 
 
-def get_properties(
-    property_name: str,
-    interface: str,
-    object_path=REVPI_DBUS_BASE_PATH,
-    bus_type=BusType.SYSTEM,
-):
-    bus = SessionBus() if bus_type is BusType.SESSION else SystemBus()
-    revpi = bus.get(REVPI_DBUS_NAME, object_path)
-    iface = revpi[interface]
-    return getattr(iface, property_name)
-
-
 def simple_call(
     method: str,
     *args,

src/revpi_middleware/dbus_middleware1/bus_provider.py

@@ -10,7 +10,6 @@ from pydbus import SessionBus, SystemBus
 
 from . import REVPI_DBUS_NAME
 from .process_image import InterfacePiControl
-from .system_config import InterfaceRevpiConfig
 
 log = getLogger(__name__)
 
@@ -42,7 +41,6 @@ class BusProvider(Thread):
         #   ("Subdir2/Whatever", Example())
         lst_interfaces = [
             InterfacePiControl(self.picontrol_device, self.config_rsc),
-            InterfaceRevpiConfig(),
         ]
 
         try:

src/revpi_middleware/dbus_middleware1/system_config/interface_config.py

@@ -8,12 +8,8 @@ from logging import getLogger
 from .revpi_config import (
     ConfigActions,
     configure_avahi_daemon,
-    configure_bluetooth,
-    configure_con_can,
     configure_dphys_swapfile,
-    configure_external_antenna,
     configure_gui,
-    configure_wlan,
     simple_systemd,
 )
 from ..dbus_helper import DbusInterface
@@ -82,7 +78,7 @@ def get_feature(feature: str) -> FeatureFunction:
 
 AVAILABLE_FEATURES = {
     "gui": FeatureFunction(configure_gui, []),
-    "revpi-con-can": FeatureFunction(configure_con_can, []),
+    "revpi-con-can": False,
     "dphys-swapfile": FeatureFunction(configure_dphys_swapfile, []),
     "pimodbus-master": FeatureFunction(simple_systemd, ["pimodbus-master.service"]),
     "pimodbus-slave": FeatureFunction(simple_systemd, ["pimodbus-slave.service"]),
@@ -93,8 +89,8 @@ AVAILABLE_FEATURES = {
         simple_systemd, ["noderedrevpinodes-server.service"]
     ),
     "revpipyload": FeatureFunction(simple_systemd, ["revpipyload.service"]),
-    "bluetooth": FeatureFunction(configure_bluetooth, []),
-    "wlan": FeatureFunction(configure_wlan, []),
+    "bluetooth": False,
+    "ieee80211": False,
     "avahi": FeatureFunction(configure_avahi_daemon, []),
-    "external-antenna": FeatureFunction(configure_external_antenna, []),
+    "external-antenna": False,
 }

src/revpi_middleware/dbus_middleware1/system_config/revpi_config.py

@@ -1,16 +1,10 @@
 # -*- coding: utf-8 -*-
 # SPDX-FileCopyrightText: 2025 KUNBUS GmbH
 # SPDX-License-Identifier: GPL-2.0-or-later
-import re
-import shutil
 import subprocess
-from collections import namedtuple
 from enum import Enum, IntEnum
-from glob import glob
 from logging import getLogger
 from os import X_OK, access
-from os.path import exists, join
-from typing import List, Optional
 
 from pydbus import SystemBus
 
@@ -18,29 +12,8 @@ from ..dbus_helper import grep
 
 log = getLogger(__name__)
 
-ConfigVariable = namedtuple("ConfigVariable", ["name", "value", "line_index"])
-
-LINUX_BT_CLASS_PATH = "/sys/class/bluetooth"
-LINUX_WLAN_CLASS_PATH = "/sys/class/ieee80211"
-CONFIG_TXT_LOCATIONS = ("/boot/firmware/config.txt", "/boot/config.txt")
-
 
 class ComputeModuleTypes(IntEnum):
-    """
-    Enumeration class to represent compute module types.
-
-    This class is an enumeration that defines various types of compute
-    modules and assigns them associated integer values for identifying
-    different module types.
-
-    Attributes:
-        UNKNOWN (int): Represents an unknown or undefined compute module type.
-        CM1 (int): Represents a Compute Module 1.
-        CM3 (int): Represents a Compute Module 3.
-        CM4 (int): Represents a Compute Module 4.
-        CM4S (int): Represents a Compute Module 4S.
-        CM5 (int): Represents a Compute Module 5.
-    """
     UNKNOWN = 0
     CM1 = 6
     CM3 = 10
@@ -50,13 +23,6 @@ class ComputeModuleTypes(IntEnum):
 
 
 class ConfigActions(Enum):
-    """
-    Enumeration class for defining configuration actions.
-
-    This enumeration provides predefined constants for common configuration
-    actions. It can be used to ensure consistency when working with or defining
-    such actions in a system.
-    """
     ENABLE = "enable"
     DISABLE = "disable"
     STATUS = "status"
@@ -64,26 +30,12 @@ class ConfigActions(Enum):
 
 
 class RevPiConfig:
-    """
-    Represents the configuration and hardware details of a Revolution Pi system.
-
-    This class provides methods and properties to initialize and fetch
-    information related to the Revolution Pi device, such as model, serial
-    number, compute module type, WLAN capability, and the presence of a
-    connection bridge. The class works by parsing system-level files (e.g.,
-    `/proc/cpuinfo`) and using this data to identify hardware characteristics
-    and features.
-
-    Attributes:
-        serial (str): The serial number of the Revolution Pi device.
-        model (str): The model name of the Revolution Pi device.
-    """
 
     def __init__(self):
         self._cm_type = ComputeModuleTypes.UNKNOWN
+        self._cm_with_wifi = False
 
         self._revpi_with_con_bridge = False
-        self._wlan_class_path = ""
 
         self.serial = ""
         self.model = ""
@@ -91,29 +43,6 @@ class RevPiConfig:
         self._init_device_info()
 
     def _init_device_info(self):
-        """
-        Initialize and retrieve detailed hardware information, including CPU details,
-        device type, WLAN interface, and connectivity features.
-
-        This method gathers information from system files and other sources to
-        initialize device-specific attributes such as model, serial number,
-        compute module type, and optional features like integrated WLAN
-        or ConBridge support. It performs checks specific to the detected
-        module type to accurately populate necessary device details.
-
-        Attributes
-        ----------
-        model : str
-            The model of the CPU based on information from /proc/cpuinfo.
-        serial : str
-            The serial number extracted from /proc/cpuinfo.
-        _cm_type : ComputeModuleTypes, optional
-            The type of the compute module derived from the hardware revision value.
-        _wlan_class_path : str, optional
-            Filesystem path to the detected WLAN interface, if any.
-        _revpi_with_con_bridge : bool
-            Indicates whether the device supports the ConBridge feature.
-        """
         dc_cpuinfo = {}
 
         # Extract CPU information
@@ -140,19 +69,11 @@ class RevPiConfig:
             except ValueError:
                 pass
 
-        # Detect WLAN on CM module
-        could_have_wlan = self._cm_type in (ComputeModuleTypes.CM4, ComputeModuleTypes.CM5)
-        if could_have_wlan:
-            wlan_interface = join(LINUX_WLAN_CLASS_PATH, "phy0")
-            if grep("DRIVER=brcmfmac", join(wlan_interface, "device", "uevent")):
-                self._wlan_class_path = wlan_interface
-
-        # If no build in WLAN on the CM, detect third party WLAN on RevPi Flat
-        if not self._wlan_class_path and grep("revpi-flat", "/proc/device-tree/compatible"):
-            lst_wlan_interfaces = glob("/sys/class/ieee80211/*")
-            for wlan_interface in lst_wlan_interfaces:
-                if grep("DRIVER=mwifiex_sdio", join(wlan_interface, "device", "uevent")):
-                    self._wlan_class_path = wlan_interface
+        # Detect WiFi
+        could_have_wifi = self._cm_type in (ComputeModuleTypes.CM4, ComputeModuleTypes.CM5)
+        if could_have_wifi:
+            lst_grep = grep("DRIVER=brcmfmac", "/sys/class/ieee80211/phy0/device/uevent")
+            self._cm_with_wifi = len(lst_grep) > 0 and self._cm_type in (ComputeModuleTypes)
 
         # Detect ConBridge
         could_have_con_bridge = self._cm_type in (ComputeModuleTypes.CM3, ComputeModuleTypes.CM4S)
@@ -160,275 +81,17 @@ class RevPiConfig:
             lst_grep = grep("kunbus,revpi-connect", "/proc/device-tree/compatible")
             self._revpi_with_con_bridge = len(lst_grep) > 0
 
-    @property
-    def class_path_wlan(self) -> str:
-        """
-        Provides access to the WLAN class path.
-
-        This property retrieves the stored WLAN class path, allowing the user to access it when
-        needed.
-
-        Returns:
-            str: The WLAN class path.
-        """
-        return self._wlan_class_path
-
     @property
     def cm_type(self) -> ComputeModuleTypes:
-        """
-        Gets the type of the compute module.
-
-        The property provides access to the type of the compute
-        module used. The type is represented as an instance of
-        the `ComputeModuleTypes` class.
-
-        Returns
-        -------
-        ComputeModuleTypes
-            The type of the compute module.
-        """
         return self._cm_type
 
     @property
     def with_con_bridge(self) -> bool:
-        """
-        Indicates if the device is configured with a connection bridge.
-
-        This property checks the internal status and determines whether the device setup
-        includes a connection bridge functionality. It is read-only.
-
-        Returns:
-            bool: True if the connection bridge is configured, False otherwise.
-        """
         return self._revpi_with_con_bridge
 
     @property
-    def with_wlan(self) -> bool:
-        """
-        Checks if WLAN is available.
-
-        This property evaluates whether WLAN is enabled or available by checking
-        the presence or value of the internal attribute `_wlan_class_path`.
-
-        Returns:
-            bool: True if WLAN is available, False otherwise.
-        """
-        return bool(self._wlan_class_path)
-
-
-class ConfigTxt:
-    """
-    Configuration file handler for managing 'config.txt'.
-
-    This class provides an interface to read, modify, save, and reload
-    Raspbian's configuration file `config.txt`. It includes functionalities
-    to manipulate specific parameters within the configuration and supports
-    managing dtoverlay and dtparam entries. The primary aim of this class
-    is to abstract file operations and make modifications user-friendly.
-
-    Attributes:
-        _config_txt_path (str): The path to the configuration file `config.txt`.
-        _config_txt_lines (list[str]): Contains all lines of the configuration
-            file as a list of strings, where each string represents a line.
-    """
-    re_name_value = re.compile(r"^\s*(?!#)(?P<name>[^=\s].+?)\s*=\s*(?P<value>\S+)\s*$")
-
-    def __init__(self):
-        self._config_txt_path = ""
-        for path in CONFIG_TXT_LOCATIONS:
-            if exists(path):
-                self._config_txt_path = path
-                break
-
-        if not self._config_txt_path:
-            raise FileNotFoundError("no config.txt found")
-
-        self._config_txt_lines = []
-
-    def _clear_name_values(self, name: str, values: str or list) -> int:
-        """
-        Removes all occurrences of specified name-value pairs from the configuration.
-
-        This method searches for all name-value pairs in the configuration and
-        removes those that match the given name and value(s). It returns the
-        number of occurrences removed.
-
-        Arguments:
-            name: str
-                The name of the configuration variable to search for.
-            values: str or list
-                The value or list of values to match the configuration variable
-                against.
-
-        Returns:
-            int: The number of name-value pairs removed from the configuration.
-
-        """
-        counter = 0
-        if type(values) is str:
-            values = [values]
-
-        for config_var in self._get_all_name_values():
-            if config_var.name == name and config_var.value in values:
-                self._config_txt_lines.pop(config_var.line_index)
-                counter += 1
-
-        return counter
-
-    def _get_all_name_values(self) -> List[ConfigVariable]:
-        """
-        Retrieves all name-value pairs from the configuration text lines.
-
-        This method parses the configuration text lines to extract all name-value
-        pairs. If the configuration text lines are not loaded, it reloads the
-        configuration before processing. Each extracted name-value pair is added to a
-        list as a ConfigVariable object, which also holds the index of the match in
-        the text lines. The method returns the compiled list of these ConfigVariable
-        objects.
-
-        Returns:
-            List[ConfigVariable]: A list of ConfigVariable objects representing the
-            name-value pairs found in the configuration text lines, along with their
-            corresponding indexes.
-        """
-        if not self._config_txt_lines:
-            self.reload_config()
-
-        lst_return = []
-
-        for i in range(len(self._config_txt_lines)):
-            match = self.re_name_value.match(self._config_txt_lines[i])
-            if match:
-                lst_return.append(ConfigVariable(match.group("name"), match.group("value"), i))
-
-        return lst_return
-
-    def reload_config(self):
-        """
-        Reloads the configuration file and updates the list of configuration lines.
-
-        This method reads the content of the configuration file specified by the
-        attribute `_config_txt_path` and updates `_config_txt_lines` with the file
-        contents as a list of strings, where each string represents a line.
-
-        Returns:
-            None
-        """
-        with open(self._config_txt_path, "r") as f:
-            self._config_txt_lines = f.readlines()
-
-    def save_config(self):
-        """
-        Saves the current configuration to a file. The method ensures atomicity by first writing
-        to a temporary file and then moving it to the desired path. After the configuration is
-        saved, the internal list of configuration lines is cleared.
-
-        Raises:
-            OSError: If there is an issue writing to or moving the file.
-        """
-        if not self._config_txt_lines:
-            return
-
-        tmp_path = f"{self._config_txt_path}.tmp"
-        with open(tmp_path, "w") as f:
-            f.writelines(self._config_txt_lines)
-        shutil.move(tmp_path, self._config_txt_path)
-
-        self._config_txt_lines.clear()
-
-    def add_name_value(self, name: str, value: str):
-        """
-        Adds a name-value pair to the configuration if it does not already exist.
-
-        This method checks if the given name-value pair is already present in
-        the configuration. If it is not present, the pair is appended to the
-        configuration text lines.
-
-        Parameters:
-            name (str): The name to be added to the configuration.
-            value (str): The value corresponding to the name to be added.
-
-        Returns:
-            None
-        """
-        # Check weather name and value already exists
-        for config_var in self._get_all_name_values():
-            if config_var.name == name and config_var.value == value:
-                return
-
-        self._config_txt_lines.append(f"{name}={value}\n")
-
-    def clear_dtoverlays(self, dtoverlays: str or list) -> int:
-        """
-        Clears the specified device tree overlays. This method removes one or more
-        device tree overlays by clearing their corresponding name-value pairs.
-
-        Args:
-            dtoverlays (str or list): A device tree overlay name as a string, or a
-            list of such overlay names to be cleared.
-
-        Returns:
-            int: The number of device tree overlay name-value pairs successfully
-            cleared.
-        """
-        return self._clear_name_values("dtoverlay", dtoverlays)
-
-    def clear_dtparams(self, dtparams: str or list) -> int:
-        """
-        Clears the specified device tree parameters.
-
-        This method removes the given device tree parameters by utilizing
-        the underlying `_clear_name_values` function with a predefined
-        parameter type.
-
-        Parameters:
-        dtparams: str or list
-            A string or list of strings specifying the device tree
-            parameters to remove.
-
-        Returns:
-        int
-            The number of parameters cleared.
-        """
-        return self._clear_name_values("dtparam", dtparams)
-
-    def get_values(self, var_name: str) -> list:
-        """
-        Get all values associated with a given variable name.
-
-        This method retrieves a list of values corresponding to the specified
-        variable name by iterating through a collection of configuration
-        variables. Each configuration variable is checked for a matching name,
-        and its value is appended to the resulting list if a match is found.
-
-        Parameters:
-        var_name (str): The name of the variable for which values are to
-                        be retrieved.
-
-        Returns:
-        list: A list of values associated with the specified variable name.
-        """
-        var_values = []
-
-        for config_var in self._get_all_name_values():
-            if config_var.name == var_name:
-                var_values.append(config_var.value)
-
-        return var_values
-
-    @property
-    def config_txt_path(self) -> str:
-        """
-        Get the file path for the configuration text file.
-
-        This property provides access to the private attribute `_config_txt_path` which
-        stores the file path to the configuration text file.
-
-        Returns:
-        str
-            The file path to the configuration text file.
-        """
-        return self._config_txt_path
+    def with_wifi(self) -> bool:
+        return self._cm_with_wifi
 
 
 def configure_avahi_daemon(action: ConfigActions):
@@ -443,70 +106,6 @@ def configure_avahi_daemon(action: ConfigActions):
     return return_value
 
 
-def configure_bluetooth(action: ConfigActions):
-    hci_device = join(LINUX_BT_CLASS_PATH, "hci0")
-    bt_rfkill_index = get_rfkill_index(hci_device)
-
-    # If the bluetooth device is not present, the device should have been
-    # brought up by revpi-bluetooth's udev rules or vendor magic (devices
-    # based on CM4 and newer). Nothing we can do here, so treat the interface
-    # as disabled.
-
-    if action is ConfigActions.ENABLE:
-        if bt_rfkill_index is not None:
-            with open(f"/sys/class/rfkill/rfkill{bt_rfkill_index}/soft", "w") as f:
-                f.write("0")
-
-    elif action is ConfigActions.DISABLE:
-        if bt_rfkill_index is not None:
-            with open(f"/sys/class/rfkill/rfkill{bt_rfkill_index}/soft", "w") as f:
-                f.write("1")
-
-    elif action is ConfigActions.STATUS:
-        if bt_rfkill_index is None:
-            return False
-
-        with open(f"/sys/class/rfkill/rfkill{bt_rfkill_index}/soft", "r") as f:
-            buffer = f.read().strip()
-            return buffer == "0"
-
-    elif action is ConfigActions.AVAILABLE:
-        return bt_rfkill_index is not None
-
-    else:
-        raise ValueError(f"action {action} not supported")
-
-    return None
-
-
-def configure_con_can(action: ConfigActions):
-    revpi = RevPiConfig()
-    if action is ConfigActions.AVAILABLE:
-        return revpi.with_con_bridge
-
-    dt_overlay = "revpi-con-can"
-    config_txt = ConfigTxt()
-
-    if action is ConfigActions.ENABLE and revpi.with_con_bridge:
-        config_txt.clear_dtoverlays([dt_overlay])
-        config_txt.add_name_value("dtoverlay", dt_overlay)
-        config_txt.save_config()
-        subprocess.call(["/usr/bin/dtoverlay", dt_overlay])
-
-    elif action is ConfigActions.DISABLE and revpi.with_con_bridge:
-        config_txt.clear_dtoverlays([dt_overlay])
-        config_txt.save_config()
-        subprocess.call(["/usr/bin/dtoverlay", "-r", dt_overlay])
-
-    elif action is ConfigActions.STATUS:
-        return revpi.with_con_bridge and dt_overlay in config_txt.get_values("dtparam")
-
-    else:
-        raise ValueError(f"action {action} not supported")
-
-    return None
-
-
 def configure_dphys_swapfile(action: ConfigActions):
     return_value = simple_systemd(action, "dphys-swapfile.service")
 
@@ -522,31 +121,6 @@ def configure_dphys_swapfile(action: ConfigActions):
     return return_value
 
 
-def configure_external_antenna(action: ConfigActions):
-    revpi = RevPiConfig()
-    if action is ConfigActions.AVAILABLE:
-        return revpi.with_wlan
-
-    config_txt = ConfigTxt()
-
-    if action is ConfigActions.ENABLE and revpi.with_wlan:
-        config_txt.clear_dtparams(["ant1", "ant2"])
-        config_txt.add_name_value("dtparam", "ant2")
-        config_txt.save_config()
-
-    elif action is ConfigActions.DISABLE and revpi.with_wlan:
-        config_txt.clear_dtparams(["ant1", "ant2"])
-        config_txt.save_config()
-
-    elif action is ConfigActions.STATUS:
-        return revpi.with_wlan and "ant2" in config_txt.get_values("dtparam")
-
-    else:
-        raise ValueError(f"action {action} not supported")
-
-    return None
-
-
 def configure_gui(action: ConfigActions):
     gui_available = access("/usr/bin/startx", X_OK)
 
@@ -554,11 +128,7 @@ def configure_gui(action: ConfigActions):
         return gui_available
 
     bus = SystemBus()
-    systemd = bus.get(
-        "org.freedesktop.systemd1",
-        "/org/freedesktop/systemd1",
-    )
-    systemd_manager = systemd["org.freedesktop.systemd1.Manager"]
+    systemd_manager = bus.get(".systemd1")
 
     if action is ConfigActions.ENABLE:
         systemd_manager.SetDefaultTarget("graphical.target", True)
@@ -573,96 +143,9 @@ def configure_gui(action: ConfigActions):
         raise ValueError(f"action {action} not supported")
 
 
-def configure_wlan(action: ConfigActions):
-    revpi = RevPiConfig()
-
-    if action is ConfigActions.ENABLE:
-        if revpi.with_wlan:
-            wlan_rfkill_index = get_rfkill_index(revpi.class_path_wlan)
-            with open(f"/sys/class/rfkill/rfkill{wlan_rfkill_index}/soft", "w") as f:
-                f.write("0")
-
-    elif action is ConfigActions.DISABLE:
-        if revpi.with_wlan:
-            wlan_rfkill_index = get_rfkill_index(revpi.class_path_wlan)
-            with open(f"/sys/class/rfkill/rfkill{wlan_rfkill_index}/soft", "w") as f:
-                f.write("1")
-
-    elif action is ConfigActions.AVAILABLE:
-        return revpi.with_wlan
-
-    elif action is ConfigActions.STATUS:
-        if not revpi.with_wlan:
-            return False
-
-        wlan_rfkill_index = get_rfkill_index(revpi.class_path_wlan)
-        with open(f"/sys/class/rfkill/rfkill{wlan_rfkill_index}/soft", "r") as f:
-            buffer = f.read().strip()
-            return buffer == "0"
-
-    else:
-        raise ValueError(f"action {action} not supported")
-
-    return None
-
-
-def get_rfkill_index(device_class_path: str) -> Optional[int]:
-    """
-    Get the rfkill index for a device under a specific device class path.
-
-    This function searches for and extracts the rfkill index associated with
-    devices located under the given device class path. It uses a regular
-    expression to identify and parse the rfkill index from the paths
-    of matching rfkill device files.
-
-    Parameters:
-        device_class_path: str
-            The path to the device class directory where rfkill entries
-            are located.
-
-    Returns:
-        Optional[int]:
-            The index of the rfkill device if found, otherwise None.
-    """
-    re_rfkill_index = re.compile(r"^/.+/rfkill(?P<index>\d+)$")
-    for rfkill_path in glob(join(device_class_path, "rfkill*")):
-        match_index = re_rfkill_index.match(rfkill_path)
-        if match_index:
-            return int(match_index.group("index"))
-
-    return None
-
-
 def simple_systemd(action: ConfigActions, unit: str):
-    """
-    Performs specified actions on systemd units.
-
-    This function allows interaction with systemd units for various operations
-    such as enabling, disabling, checking the status, and verifying availability.
-    It communicates with the systemd manager via the SystemBus and handles units
-    based on the action specified.
-
-    Parameters:
-        action (ConfigActions): Specifies the action to be performed on the
-                                systemd unit. Supported actions include ENABLE,
-                                DISABLE, STATUS, and AVAILABLE.
-        unit (str): The name of the systemd unit on which the action is to be
-                    performed.
-
-    Returns:
-        bool: For STATUS and AVAILABLE actions, returns True if the corresponding
-              criteria are met (e.g., enabled and active for STATUS, or not found
-              for AVAILABLE). Otherwise, returns False.
-
-    Raises:
-        ValueError: If the specified action is not supported.
-    """
     bus = SystemBus()
-    systemd = bus.get(
-        "org.freedesktop.systemd1",
-        "/org/freedesktop/systemd1",
-    )
-    systemd_manager = systemd["org.freedesktop.systemd1.Manager"]
+    systemd_manager = bus.get(".systemd1")
 
     if action is ConfigActions.ENABLE:
         systemd_manager.UnmaskUnitFiles([unit], False)
@@ -676,7 +159,7 @@ def simple_systemd(action: ConfigActions, unit: str):
     elif action is ConfigActions.STATUS:
         try:
             unit_path = systemd_manager.LoadUnit(unit)
-            properties = bus.get("org.freedesktop.systemd1", unit_path)
+            properties = bus.get(".systemd1", unit_path)
         except Exception:
             log.warning(f"could not get systemd unit {unit}")
             return False
@@ -686,7 +169,7 @@ def simple_systemd(action: ConfigActions, unit: str):
     elif action is ConfigActions.AVAILABLE:
         try:
             unit_path = systemd_manager.LoadUnit(unit)
-            properties = bus.get("org.freedesktop.systemd1", unit_path)
+            properties = bus.get(".systemd1", unit_path)
         except Exception:
             log.warning(f"could not get systemd unit {unit}")
             return False
@@ -702,11 +185,5 @@ if __name__ == "__main__":
     print("Model:", rc.model)
     print("Serial:         ", rc.serial)
     print("CM Type:        ", rc.cm_type.name)
-    print("With WLAN:      ", rc.with_wlan)
-    if rc.with_wlan:
-        print("    class path: ", rc.class_path_wlan)
-        print("  rfkill index: ", get_rfkill_index(rc.class_path_wlan))
+    print("With wifi:      ", rc.with_wifi)
     print("With con-bridge:", rc.with_con_bridge)
-
-    config_txt = ConfigTxt()
-    print("Config file:    ", config_txt.config_txt_path)