Enable configuring CAN without root access

[reimarstier]

At the moment we require root access for EDGAR because we want to be able:

• to configure CAN devices with the ip command, and
• use cangw to configure CAN routing

There are two options to avoid running the entire application as root:

• Either by implementing the above configuration options with rtnetlink, or
• By adding setcap attributes to the respective binaries and verifying that we are actually able to run those commands without being root.

Tasks

• Add additional attributes for network administrative privileges to the binaries ip and cangw
• Ensure this works in a docker container

Background

We are already adding network administrative capabilites to the opendut-edgar binary here

[sdv-infy]

Hello @reimarstier , Can you please assign this to me. I'd like to work on this.

[reimarstier]

Hi, sure. You can work on this. There is no one addressing this from our side. But beware, there is literally no CAN support present in the rtnetlink crate as of right now.