[SR-Users] RLS issue

Tue Jan 4 21:14:03 CET 2011

Hi,

Thanks. I've already been sniffing the network. The capture file of the 
presence server (kamailio) and the ua (watcher) is attached.

Backend subscriptions must be sent to what CSCF of the presentity 
domain? The S-CSCF? You wrote me that Kamailio uses dns queries in order 
to determine the ip of the next IMS entity. In case of a subscription to 
list at open-ims.test, what dns query will Kamalio do?

The subscription message is:

SUBSCRIBE sip:restricted_areas_presentities at open-ims.test SIP/2.0
Call-ID: nYhLl92BHRHtSTy3f8iNZ1v6irOhhfd2fNnFtSXTOlk.
CSeq: 1 SUBSCRIBE
From: "restricted_areas" <sip:restricted_areas at open-ims.test>;tag=f733f739
To: <sip:restricted_areas_presentities at open-ims.test>
Via: SIP/2.0/TCP 
155.54.190.245:8060;rport;branch=z9hG4bK-d8754z-a71d1c184df2d432-1---d8754z-
Max-Forwards: 70
Event: presence
Accept: multipart/related, application/rlmi+xml, application/pidf+xml, 
application/auth-policy+xml
Expires: 30000
Contact: <sip:restricted_areas at 155.54.190.245:8060>
Supported: eventlist
Route: <sip:orig at scscf.open-ims.test:6060;lr>
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, 
SUBSCRIBE, INFO
User-Agent: X-Lite IMS-OSGi-Client 0.1 CVS-Mon_Jan_03_09-56-46_CET_2011
Content-Length: 0

And the XCAP document:
<?xml version="1.0" encoding="UTF-8"?><rls-services 
xmlns:rl="urn:ietf:params:xml:ns:resource-lists" 
xmlns="urn:ietf:params:xml:ns:rls-services"><service 
uri="sip:restricted_areas_presentities at open-ims.test"><resource-list><list 
name="friends"><rl:entry uri="sip:testuser01 at open-ims.test"/><rl:entry 
uri="sip:testuser02 at open-ims.test"/></list></resource-list><packages><package>presence</package></packages></service></rls-services>

The URI for the document is:
/xcap-root/rls-services/users/sip:restricted_areas at open-ims.test/index

Could anyone send me a capture file with the whole process of the 
subscription to the rls and the notifies sent along with the 
configuration files of Kamailio (if needed) and the xcap documents?

Thank you all,
   Andrés.

El 04/01/11 15:08, Klaus Darilion escribió:
>
>
> Am 04.01.2011 13:06, schrieb "Andrés S. García Ruiz":
>>
>> Hello,
>>
>> Thanks for your responses and happy new year!
>>
>> Could anyone tell me how to make the RLS module work properly?
>>
>> I've tried several different solutions, but I still don't know what's
>> the expected behaviour of the RLS.
>>
>> I'm using the Kamailio integrated presence server + RLS. Then, the RLS
>> is supposed to send a SUBSCRIBE to each of the presentities in the
>> subscribed presence list?
>
> Correct. So-called "backend subscriptions"
>
>> In that case, and if the domain of the presentity is the same as the
>> used by the watcher, the SUBSCRIBE will go back to the Kamailio?
>
> yes.
>
>> This is the reason why I don't receive the notify. There are no dialogs
>> for the subscription:
>>
>> 5(13925) DEBUG: presence [notify.c:1302]: found 0 dialogs( 0 in database
>> and 0 in hash_table)
>> 5(13925) DEBUG: presence [notify.c:1387]: Could not get subscription 
>> dialog
>> 5(13925) DEBUG: presence [notify.c:1461]: dialog info:
>> 5(13925) DEBUG: presence [notify.c:122]:
>> [pres_uri]= sip:restricted_areas_presentities at open-ims.test
>> [to_user]= restricted_areas_presentities [to_domain]= open-ims.test
>> [w_user]= restricted_areas [w_domain]= open-ims.test
>> [event]= presence
>> [status]= active
>> [expires]= 0
>> [callid]= nYhLl92BHRHtSTy3f8iNZ1v6irOhhfd2fNnFtSXTOlk. [local_cseq]=1
>> [to_tag]= a6a1c5f60faecf035a1ae5b6e96e979a-5cc7 [from_tag]= f733f739
>> [contact]= sip:restricted_areas at 155.54.190.245:8060 [record_route]=
>> <sip:mo at scscf.open-ims.test:6060;lr>,<sip:mo at pcscf.open-ims.test:4060;lr> 
>>
>> 5(13925) DEBUG: presence [hash.c:471]: pres_uri=
>> sip:restricted_areas_presentities at open-ims.test
>> 5(13925) DEBUG: presence [notify.c:643]: No record exists in hash_table
>> 5(13925) DEBUG: presence [notify.c:1515]: Could not get the notify_body
>> 5(13925) DEBUG: presence [notify.c:225]: state = terminated
>> 5(13925) DEBUG: presence [notify.c:1555]: headers:
>> Max-Forwards: 70
>> Event: presence
>> Contact: <sip:155.54.190.245:5060;transport=udp>
>> Subscription-State: terminated;reason=timeout
>>
>> Any hints?
>
> That shouldn'T be the problem. You should see the backend subscription 
> by sniffing on the loopback interface, e.g. to sniff an all interfaces 
> (and in nice format) use:
>
> ngrep -d any -W byline -t -P "" port 5060
>
> regards
> Klaus

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