How to start/stop WLAN (instead of using binaries running as root)

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I had tried granting the Connman permission directly (see @poetaster’s list) inside the .Desktop file.
After your comment, I found out that this is actually included in Internet permission. Which - in turn - is part of the default permissions set in the default profile (/etc/sailjail/config/50-default-profile.conf).

Unfortunately neither of them yields the necessary DBus permissions. I am manually testing this with sailjail to see logs:

sailjail -v -p /usr/share/applications/WiFiKilL3r -- /usr/bin/WiFiKilL3r

Once tapping the WLAN button in the app, I get this error (code called by the UI is below):

[D] onError:81 - python error: Return value of PyObject call is NULL: Traceback (most recent call last):

  File "/usr/share/WiFiKilL3r/qml/python/WiFiKilL3r.py", line 194, in disable_wifi
    reply = wifi_interface.SetProperty("Powered", False)

  File "/usr/lib64/python3.8/site-packages/dbus/proxies.py", line 72, in __call__
    return self._proxy_method(*args, **keywords)

  File "/usr/lib64/python3.8/site-packages/dbus/proxies.py", line 141, in __call__
    return self._connection.call_blocking(self._named_service,

  File "/usr/lib64/python3.8/site-packages/dbus/connection.py", line 652, in call_blocking
    reply_message = self.send_message_with_reply_and_block(

dbus.exceptions.DBusException: net.connman.Error.PermissionDenied: Permission denied

What I have come up with in Python so far (modified from @theyosh’s original sources):

def disable_wifi():
  bus = dbus.SystemBus()
  # connect to connman over dbus
  connman = bus.get_object("net.connman", "/net/connman/technology/wifi")
  wifi_interface = dbus.Interface(connman, "net.connman.Technology")
  reply = wifi_interface.SetProperty("Powered", False)
  logger('Disable wifi with DBUS')
  logger(reply)

def enable_wifi():
  if not is_wifi_enabled():
    bus = dbus.SystemBus()
    connman = bus.get_object("net.connman", "/net/connman/technology/wifi")
    wifi_interface = dbus.Interface(connman, "net.connman.Technology")
    reply = wifi_interface.SetProperty("Powered", True)
    logger.info('Enable wifi with DBUS')
    logger.info(reply)
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