[SR-Users] Kamailio and NAPTR lookup with TLS

[Klaus Darilion]

Am 08.07.2010 18:10, schrieb Daniel-Constantin Mierla:
> Hello,
>
> On 7/8/10 5:59 PM, Matteo Campana wrote:
>>
>> Hi all,
>> I'm using kamailio 1.5 with TLS module.
>> I need to make ENUM query and get NAPTR record.
>> > From NAPTR lookup, I'd like to relay my SIP Invite with tls protocol.
>>
>> How can I tell Kamailio to use TLS protocol ( instead of udp) after
>> NAPTR lookup ?
>>
>> I've try to set :
>>
>> dns_tls_pref=1
>> dns_udp_pref=2
>> dns_tcp_pref=3
>>
>> in the general section of kamailio.cfg, but I get a parse error.
>>
> these parameters were introduced in kamailio with version 3.0.
>
> If you need TLS then it is recommended to use 3.0 anyhow, it is a far
> better implementation. That will make the life easier to migrate to
> upcoming 3.1 that will bring asynchronous TLS.
>
> No matter what you have in R-URI, you can force TLS via setting outbound
> proxy address to be a TLS uri:
>
> $du = "sip:__ip_or_host__;transport=tls";
> t_relay();

IIRC we do have NAPTR support in Kamailio 1.5 - don't we?

Then I think it should work when putting a domain into $du and makeing 
sure that there is no transport parameter, no port, and NAPTR TLS record 
has highest priority.

regards
klaus

>
> The IP or host you can take from R-URI without any problem via PV $rd.
> Other option is to use function from tm - t_relay_to_tls():
>
> http://kamailio.org/docs/modules/stable/modules/tm.html#t_relay_to_udp
>
> Cheers,
> Daniel
>