Making a wish ... errr ... *four* wishes! 😳

[Luis Ressel]

On Sat, 10 Feb 2018 19:34:08 +0100
Clemens Schrimpe <clemens.schrimpe at gmail.com> wrote:

> Yes, it's a cludge, I agree - but I really have to jump through many
> (fiery) hoops to prevent my Linux interfaces loose their IPv6
> addresses each time the link-state bounces (which Bird also already
> notices, btw.)

Are you aware of the net.ipv6.conf.${IF}.keep_addr_on_down sysctl knob?

> What I mean is a socket-based interface to $script with a
> well-defined, yet simple protocol (ASCII/UTF8-based?) with the few
> primitives needed by Bird, like query/list/learn, set, add, delete,
> flush. Bird could connect to an existing daemon via Unix-Domain- or
> IP-Sockets or (cooler) spawn a sub-process with a given
> script/program and interact with it via STDIN and STDOUT (STDERR →
> logging) - similar to how "FCGI" used to work. This could become the
> Swiss-Army-Knife to interact with Bird in oh-so-many ways, among
> which to implement my initial idea with ipsets. 

Interesting idea! I'd prefer an external daemon over a child spawned by
bird, though; in particular because it makes privilege separation and
supervision much easier.

Regards,
Luis