16 Oct
2007
16 Oct
'07
10:05 a.m.
El Monday 15 October 2007 22:35:34 Klaus Darilion escribió:
Iñaki Baz Castillo wrote:
It's a great idea!
Of course I need to test it. For example:
What about if the "Refer-to" header just contains "sip:001234234234"
with no
@domain? maybe there are "broken" SIP devices which auto-complete this URI
with their domain?
El Monday 15 October 2007 12:12:44 Klaus Darilion
escribió:
just an idea: check if $fd of REFER is identical to domain in REFER to
header - if not -> reject it. What exactly do you want to achieve? Do you want
to allow REFER only
intradomain?
Exactly.
- Imagine you admin a OpenSer that gives service to 2 independent
companies (domain_A and domain_B).
- Imagine a user_A of domain_A calls to a user_B of domain_B.
- During the call user_A does REFER.
- OpenSer requires auth por REFER, so user_A sends auth (it can since
it's a local user).
- So finally user_B is transferred by an external user. Of course this is
not tolerable.
So I need to allow a REFER just if the caller and called are in the same
domain, but REFER is in-dialog so there is not domain name in the URI. Further, if B's phone send out the new INVITE, if
$rd != $fd then do not
send the call to the gateway.
Humm, it can't be, because in case of a forwarding (implemented in OpenSer) I
do allow calls from others domain to PSTN gateway.
Thanks a lot for your suggest, it's a very good solution :)
--
Iñaki Baz Castillo
ibc(a)in.ilimit.es