0

I am currently writing something that utilizes a usb CAN interface to communicate with a CAN bus. If I switch users to root, the program runs just fine, however, I want to run the program as my local user (steven). The program is built on top of libsocketcan (https://github.com/lalten/libsocketcan) which is where the commands that I need permission for are called. specifically: can_set_bitrate, can_do_start

I have tried adding permissions to my sudoers file as it is shown here, however that did not change the outcome:

# Cmnd alias specification
Cmnd_Alias ADMIN_CMDS = /usr/sbin/passwd, /usr/sbin/useradd, /usr/sbin/userdel, /usr/sbin/usermod, /usr/sbin/visudo, /usr/bin/link, /sbin/ip
# User privilege specification
root    ALL=(ALL:ALL) ALL

Members of the admin group may gain root privileges


%admin ALL=(ALL) ALL


Allow members of group sudo to execute any command


%sudo   ALL=(ALL:ALL) ALL
steven ALL =(ALL) NOPASSWD:ALL


See sudoers(5) for more information on "#include" directives:


#includedir /etc/sudoers.d

I have also tried aliasing the ip command with sudo ip but that also has not solved the problem. I keep running into this error specifically: RTNETLINK answers: Operation not permitted Any help is very much appreciated! Thank you!

Steven
  • 1

1 Answers1

1

If your program runs /bin/ip, you can try setting the setuid sticky bit.

▶ sudo chmod u+s /bin/ip

Any user on the computer will be able to execute /bin/ip with root privileges.

xpk
  • 436