[arch-general] udev-139 and file permissions of /dev/net/tun

[Jan Spakula]

Excerpts from Attila's message of Di Mär 10 18:51:15 +0100 2009:
> Hi,
> 
> i use a script to prepare a bridged network for a kvm session and therefore i
> have this line in /etc/udev/rules.d/01-attila.rules:
> 
> KERNEL=="tun", NAME="net/%k", MODE="0660", GROUP="network"
> 
> After upgrading udev my file permissions of the new persistent /dev/net/tun
> looks so after booting up:
> 
> crw-rw-rw- 1 root root 10, 200  8. Mär 00:43 /dev/net/tun
> 
> I play with this lines in /etc/udev/permissions.d/00-my.permissions:
> 
> a) tun:root:network:0660
> b) net/tun:root:network:0660
> 
> I reboot even after changing the line but there is no change. If i do
> a "modprobe tun" there be the right permissions:
> 
> crw-rw---- 1 root network 10, 200  8. Mär 00:43 /dev/net/tun
> 
> So my questions is how and/or where can i control the file permissions of the
> persistent devices from the new udev?
> 
> This is definitly not bad, i want more to know what i have overseen.-)
> 
> See you, Attila

This reminds of a problem Dusty had and discussed on forums:
http://bbs.archlinux.org/viewtopic.php?id=60060
Result: the device node was created before the rule was applied.
So maybe ... ?

Good luck,
 Jan