[OpenSER-Users] dp and dP pseudo-vars

Victor Gamov vit at lipetsk.ru
Thu Jan 24 18:42:27 CET 2008


Klaus Darilion wrote:
> 
> 
> Victor Gamov schrieb:
>> Hi gentlemen!
>>
>> I use openser-1.2.2 and I want to access to dp & dP variables but 
>> sometimes they are empty. I try to access it before and after 
>> t_relay() and result is the same -- variable is empty.
>>
>> When this variables are set?
> 
> Manually in openser.cfg or by some functions (e.g. lookup() or 
> loose_route()).
> 
>> Is it possible that they are not set at all?
> 
> yes.
> 
> If openser forwards the request (e.g. t_relay) it verifies if DURI is 
> set. If yes, the request is sent to the DURI.
> 
> If DURI is not sent, the request is forwarded to the RURI.
> 
> 
> a typical example: client behind NAT register with Contact URI 
> sip:192.168.2.2:5060. The request comes from 1.2.3.4:8888.
> 
> Then during save openser will save the contact and the public address. 
> Further, if you  lookup() this user, the lookup function will set RURI 
> to sip:192.168.2.2:5060 and duri to sip:1.2.3.4:8888

I see.

And in this situations $dP implicitly set to 'UDP' and $dp explicitly 
set to '8888', yes ?

Another question: is it possible that t_relay() set this variables 
because t_relay() really know which $dP & $dp was used to send request.


-- 
CU,
Victor Gamov




More information about the sr-users mailing list