[OpenSIPS-Users] Strange behavior in BYE transaction
Bogdan-Andrei Iancu
bogdan at opensips.org
Tue Jan 30 05:19:23 EST 2018
Hi Stefan,
So you want to check if the BYE does actually belong to an ongoing
dialog/call, right ? if so, you should use the dialog module:
http://www.opensips.org/html/docs/modules/2.3.x/dialog.html
Create thedialog at initial INVITE time and for sequential requests
(like BYE) use the match_dialog() for the check.
And yes, seats are still available for the summit, you can register
anytime here:
http://www.opensips.org/events/Summit-2018Amsterdam/
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
OpenSIPS Summit 2018
http://www.opensips.org/events/Summit-2018Amsterdam
On 01/26/2018 05:54 PM, Stefan Carlsson wrote:
>
> I’ve thought that I could check the validity of the received
> BYE. (you have to bear with me as I am a newbie (i’m ISDN guy)
> ….. J)
>
> I removed the t_check_trans() and did the unforce_rtp_poxy() before
> the t_relay() just catching the t_relay() reponse, now it seems to
> work again.
>
> (One interesting fact, is that this row has been there since release
> 2.1 , and it worked J)
>
> So the question.
>
> How can I check that the received BYE is referring to specific
> previous INVITE –-> ACK. ? , or shall I just trust the TM.
>
> Take care…
>
> (btw, are there any seats left on the Amsterdam Summit)
>
> Kind Regards / Vänligen …
>
> Stefan Carlsson
>
> ---------------------------------------------------------------------------
> *Svensk Växeltjänst AB*
>
> Stefan Carlsson
> Systemdesign Tele/Data
> Tele dir. +46 (0)504 697601 Tele off +46 (0)504 697600
> Mob. +46 (0)708 267 213
> stefan.carlsson at vaxeltjanst.se <mailto:stefan.carlsson at vaxeltjanst.se>
> www.vaxeltjanst.se <http://www.vaxeltjanst.se/>
>
> *From:*Bogdan-Andrei Iancu [mailto:bogdan at opensips.org]
> *Sent:* Friday, January 26, 2018 16:21
> *To:* Stefan Carlsson <stefan.carlsson at vaxeltjanst.se>;
> users at lists.opensips.org
> *Subject:* Re: [OpenSIPS-Users] Strange behavior in BYE transaction
>
> Are you sure you are not mixing a TRANSACTION (a singel request with
> all its replies) with a DIALOG (all transactions forming a call, like
> INVITE+BYE) ??
>
> Regards,
>
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developer
> http://www.opensips-solutions.com
> OpenSIPS Summit 2018
> http://www.opensips.org/events/Summit-2018Amsterdam
>
> On 01/26/2018 05:07 PM, Stefan Carlsson wrote:
>
> Hi Bogdan , thank you for your fast reply.
>
> The problem is that t_check_trans() doesn’t find the transaction
> in the response of the received BYE.
>
> so I cannot unforce the rtp_proxy and do the t_relay() (eg. send
> OK 200 back .)
>
> See below code snap.
>
> ***
>
> if(t_check_trans() ) {
>
> xlog("We have an transaction");
>
> unforce_rtp_proxy();
>
> t_relay();
>
> }
>
> else
>
> {
>
> xlog("We DONT have an transaction");
>
> sl_reply_error();
> <<<< Here we got (of
> course): SIP/2.0 500 Server error occurred (1/SL)
>
> }
>
> **** debug snap
>
> Jan 26 13:25:33 siprouter /usr/sbin/opensips[5140]:
> DBG:core:get_hdr_field: cseq <CSeq>: <2> <BYE>
>
> Jan 26 13:25:33 siprouter /usr/sbin/opensips[5140]:
> DBG:tm:t_lookup_request: start searching: hash=28500, isACK=0
>
> Jan 26 13:25:33 siprouter /usr/sbin/opensips[5140]:
> DBG:tm:matching_3261: RFC3261 transaction matching failed
>
> Jan 26 13:25:33 siprouter /usr/sbin/opensips[5140]:
> DBG:tm:t_lookup_request: no transaction found
>
> Jan 26 13:25:33 siprouter /usr/sbin/opensips[5140]: We DONT have
> an transaction
>
> Jan 26 13:25:33 siprouter /usr/sbin/opensips[5140]:
> DBG:sl:sl_reply_error: error text is Server error occurred (1/SL)
>
> Jan 26 13:25:33 siprouter /usr/sbin/opensips[5140]:
> DBG:core:parse_headers: flags=ffffffffffffffff
>
> Btw. Where is the hash=28500 constructed
>
> // Regards …
>
> Stefan
>
> *From:*Bogdan-Andrei Iancu [mailto:bogdan at opensips.org]
> *Sent:* Friday, January 26, 2018 15:50
> *To:* Stefan Carlsson <stefan.carlsson at vaxeltjanst.se>
> <mailto:stefan.carlsson at vaxeltjanst.se>
> *Subject:* Re: [OpenSIPS-Users] Strange behavior in BYE transaction
>
> Hi Stefan,
>
> I do not understand your problem ? Your OpenSIPS receives a BYE
> requests....ok, what is going wrong at this point ?
>
> Regards,
>
>
> Bogdan-Andrei Iancu
>
>
>
> OpenSIPS Founder and Developer
>
> http://www.opensips-solutions.com
>
> OpenSIPS Summit 2018
>
> http://www.opensips.org/events/Summit-2018Amsterdam
>
> On 01/26/2018 10:54 AM, Stefan Carlsson wrote:
>
> Hi !
>
> (using Opensips 2.2.6)
>
> We have (suddenly) got some issues in the BYE transaction.
>
> The Call-ID, ftags, is consistent from previous dialogs and
> are received in the BYE request from the operator except the
> Cseq as we got a new one in the BYE.
>
> (But the branch tag looks as this:
> branch=z9hG4bK-524287-1---c2beba62517a3e4eminsusi)
>
> Do we have a problem with hyphens in the branch tag ?
>
> How does the Opensips tm create and keep the BYE transaction
> is the branch tag or …. ?
>
> ***
>
> The attached codesnap show the relay of the BYE handling.
>
> ***
>
> if(t_check_trans() ) {
>
> xlog("We have an transaction");
>
> unforce_rtp_proxy();
>
> t_relay();
>
> }
>
> else
>
> {
>
> xlog("We DONT have an transaction");
>
> sl_reply_error(); <<<< Here we got:
> SIP/2.0 500 Server error occurred (1/SL)
>
> }
>
>
>
>
>
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>
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>
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>
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