[Click] Interacting at user-level

[Dagang LI]

Dear all,

I am looking for a way to interact with a running router at user-level. 
For example, changing the behavior of the router externally by the input 
of the user. I am wondering whether there are already some methods 
within click that can do the job, like live-reconfiguration or handlers? 
Unfortunately there is barely any document on live-reconfiguration, and 
it seems only read handlers can work in user-level. Or can we just use a 
normal file as the interface between user and the running router, and 
let the router check this file periodically? Although this is our 
current solution, I suppose it is not a nice one ...

I'd expect there will be kind of 'general guideline' for the general 
purpose of interacting with the running configuration at user-level, 
like accessing the /proc directory at kernel mode. Is that so? Any help 
will be highly appreciated.

Best regards,
Dagang LI