[asterisk-bugs] [Asterisk 0009305]: [patch] REINVITE before 200ok causes a call to be ended

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A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=9305 
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Reported By:                atca_pres
Assigned To:                oej
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Project:                    Asterisk
Issue ID:                   9305
Category:                   Channels/chan_sip/Transfers
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     confirmed
Asterisk Version:            SVN 
SVN Branch (only for SVN checkouts, not tarball releases):  1.4 
SVN Revision (number only!): 58957 
Disclaimer on File?:        Yes 
Request Review:              
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Date Submitted:             03-16-2007 13:28 CDT
Last Modified:              08-13-2007 15:01 CDT
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Summary:                    [patch] REINVITE before 200ok causes a call to be
ended
Description: 
When Flash hooking:
Box 1 sends a INVITE with a contact 0.0.0.0 (Hold)
Asterisk sends a invite to box 2
Box 2 sends a trying
Asterisk sends a second invite to box 2 with a differetn CSeq, Branch and
Session version(SDP). This trigger a 500 msg.
The 500 is triggered because you cannot (according to RFC) send a second
invite when you have an unfinished dialog

Note : No RTP Portal
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Relationships       ID      Summary
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related to          0009142 Placing a call on hold sends two INVITE...
related to          0009209 race condition in sip hangup with reinv...
related to          0009649 BYE calls too fast when connected to a ...
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 atca_pres - 08-13-07 15:01  
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Hi One47, 

It's better, but not perfect :)

I'm attaching an ethereal file with your sip_reinvite applied. The
asterisk sends a cancel, which is good. But then the unit had already sent
it's 200OK (small race condition here), so it ignores the cancel (after a
200 OK, you should answer a ACK) which is fine. Then asterisk sends the ACK
and the BYE (great news) BUT (there is always a but) asterisk now don't
stop sending the CANCEL after the 200 OK and/Or bye is over.

Let me know if you need an asterisk log, I don't really have time right
now, so if needed, I'll take one tomorrow morning. 

Issue History 
Date Modified   Username       Field                    Change               
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08-13-07 15:01  atca_pres      Note Added: 0068793                          
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