omapi callbacks

[Erik Alapää]

Hi!

I wonder if anyone here could post an example of how to use
dhcpctl_set_callback() with the ISC DHCP server? What I want to do is
construct a "packet sniffing" relay that is aware of all transactions
between DHCP server and clients. For example, I would like the relay
to be aware of DHCPRELEASE messages that are unicast from client to
server without passing the relay. Is it possible, and how would I go
about registering such a callback?

Ideally, I would like to say to the server "notify me with a callback
whenever any of the DHCP clients that initially registered with the
server via this relay change DHCP state". Is this possible?

(for info, what I really want to do is update an LDAP server when
clients get new DHCP leases, extend or release their leases etc.)

Regards,

--
Erik Alapää
Software Engineer M. Sc., Lic. Ind. Math.

Aurorum Science Park 8
SE 997 75 Luleå
Sweden

+46 70 535 17 14 (mobile)
+46 920 75510  (fax)

http://www.operax.com