Querying?

[Wouter Verhelst]

Hi,

I've been writing some stuff using libnl, and it seems to come along
nicely. That is, as long as I want to set a network interface address
from userland, or play with some flags, or something similar.

However, I can't seem to figure out how to query stuff from the kernel.
I'd like to be able to tell the kernel things like 'give me a list of
network intefaces you have', 'what addresses have been assigned to
interface X', or 'tell me when something happens' -- the equivalent of
'ip monitor'.

Is this actually possible with libnl? If so, what should I be doing?

-- 
The biometric identification system at the gates of the CIA headquarters
works because there's a guard with a large gun making sure no one is
trying to fool the system.
  http://www.schneier.com/blog/archives/2009/01/biometrics.html