Bluetoothctl in a Container

Technical Support
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1

When i used bluetoothctl in a Container i got this:
Waiting to connect to bluetoothd…dbus[54]: arguments to dbus_connection_get_object_path_data() were incorrect, assertion “connection != NULL” failed in file …/…/…/dbus/dbus-connection.c line 5969.
This is normally a bug in some application using the D-Bus library.

D-Bus not built with -rdynamic so unable to print a backtrace
Aborted (core dumped)

Can you help me?

2

Hi, I’m the Toradex AI Assistant. I’m in early beta, and I would appreciate your feedback.
The Toradex Support team will follow up with you shortly!

Did you like my answer?

:+1: :-1:

:handshake:

The issue you’re encountering with bluetoothctl in a container is likely related to the D-Bus configuration and how the container interacts with the host system’s D-Bus service. Here are some steps to help you resolve this:

  1. Ensure D-Bus is Running on the Host:
    Make sure that the D-Bus service is running on the host system. You can check this with:

    systemctl status dbus

  2. Share the D-Bus Socket with the Container:
    When running the container, you need to share the D-Bus socket from the host to the container. This can be done by mounting the D-Bus socket inside the container. For example, if you are using Docker, you can run the container with:

    docker run -it --rm \
  --net=host \
  --privileged \
  -v /var/run/dbus:/var/run/dbus \
  your-container-image

  3. Install D-Bus in the Container:
    Ensure that the D-Bus package is installed in your container. You can add it to your Dockerfile or install it manually inside the container:

    apt-get update && apt-get install -y dbus

  4. Start D-Bus Service in the Container:
    If necessary, start the D-Bus service inside the container:

    service dbus start

  5. Check Permissions:
    Ensure that the user inside the container has the necessary permissions to access the D-Bus socket. You might need to run the container as the root user or adjust the permissions accordingly.

By following these steps, you should be able to run bluetoothctl inside the container without encountering the D-Bus connection error.

Best regards, Toradex AI Assistant