Getting network devices with Python and udev
Just a quick post, mainly as a reminder for when I'll try to implement this in WICD:
#!/usr/bin/python import gudev client = gudev.Client(['rfkill', 'net']) for dev in client.query_by_subsystem('net'): if dev.get_sysfs_attr_as_int("type") != 1: continue driver = dev.get_driver() if not driver: parent = dev.get_parent() if parent: driver = parent.get_driver() print type, dev.get_name(), driver, dev.get_sysfs_path()
This will print all network devices with ethernet-encapsulated packets (that's what sysfs type "1" is). Here's the output on my system:
eth0 e1000e /sys/devices/pci0000:00/0000:00:19.0/net/eth0 wlan0 b43 /sys/devices/pci0000:00/0000:00:1c.1/0000:10:00.0/ssb0:0/net/wlan0
I'm still missing how to reliably detect if a device is a "wired" or a "wireless" one. I suspect that checking the existence of /phy80211 would be enough, but I can't really tell, and seems like I'm not able to find an exhaustive sysfs reference manual.