[OpenSIPS-Users] dlg_validate_dialog errors in loose_route

[Jeff Pyle]

Vlad,

Great news!  I do not right now, but I should within a month or so.


- Jeff

From: Vlad Paiu <vladpaiu at opensips.org<mailto:vladpaiu at opensips.org>>
Reply-To: OpenSIPS users mailling list <users at lists.opensips.org<mailto:users at lists.opensips.org>>
Date: Fri, 29 Apr 2011 04:59:45 -0400
To: "users at lists.opensips.org<mailto:users at lists.opensips.org>" <users at lists.opensips.org<mailto:users at lists.opensips.org>>
Subject: Re: [OpenSIPS-Users] dlg_validate_dialog errors in loose_route

Hello,

Trunk has just been enhanced with URI matching according to RFC 3261, so you shouldn't have any more problems with parameter reordering, etc.
Please give it a try, if you have the time.


Regards,

--
Vlad Paiu
OpenSIPS Developer


On 04/13/2011 06:23 PM, Jeff Pyle wrote:
Bogdan,

Don't hold back…let's hear how you really feel.    :)

I understand your position.  Unfortunately since there are UAs that do this, and they RFC compliant in their behavior, the validate_dialog() function is less useful in the real world.  I've hadto remove it from my configs.

I'm fighting a similar situation regarding the behavior of the uac_replace_from function.  It seems that Acme SBCs replace the value of the From header (old To header) on new requests within a dialog, and this breaks the uac_replace_from function.  I've cited the second paragraph of section 12.2.1.1 of RFC 3261.  The carrier I'm fighting with now reads this "mandatory reflection" behavior as part of the old RFC 2543, not 3261.  They aren't willing to put any more time into configuring their Acme to maintain the headers.  I work with another carrier partner who also uses Acme who was able to make the change.  I'm trying to get the details from the second carrier so I can share them with the first.


- Jeff

From: Bogdan-Andrei Iancu <bogdan at opensips.org<mailto:bogdan at opensips.org>>
Reply-To: OpenSIPS users mailling list <users at lists.opensips.org<mailto:users at lists.opensips.org>>
Date: Wed, 13 Apr 2011 10:54:00 -0400
To: "users at lists.opensips.org<mailto:users at lists.opensips.org>" <users at lists.opensips.org<mailto:users at lists.opensips.org>>
Subject: Re: [OpenSIPS-Users] dlg_validate_dialog errors in loose_route

Hi Jeff,

Well, life sucks.....You see, the UA you use is re-ordering the URI params...This is perfectly allowed from RFC point of view, but is bullshit in real life. So your UA is compliant, but not fairplay :)....

The only solution to this is to extend the "SIP URI matching" from simple string comparison, to RFC-wise comp - parsing the URI, checking username, domain, params, etc.....I tried to avoid this as much as possible as it BS to me....

Regards,
Bogdan

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