[asterisk-bugs] [Asterisk 0016116]: [patch] Fix/improve transaction/dialog-matching in pedantic mode

[Asterisk Bug Tracker]

The following issue has been set as RELATED TO issue 0017347. 
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https://issues.asterisk.org/view.php?id=16116 
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Reported By:                alexh
Assigned To:                
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Project:                    Asterisk
Issue ID:                   16116
Category:                   Channels/chan_sip/Interoperability
Reproducibility:            always
Severity:                   feature
Priority:                   normal
Status:                     confirmed
Asterisk Version:           Older 1.6.1 
JIRA:                       SWP-1499 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2009-10-23 04:41 CDT
Last Modified:              2010-05-18 14:25 CDT
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Summary:                    [patch] Fix/improve transaction/dialog-matching in
pedantic mode
Description: 
Attached patch fixes the following issues in chan_sip:

1) Use astobj2 as a true hash table instead of doing a 'fancy' linear
searchg over the entire list trying to find the correct entry.

2) Fix tag matching. Currently in pedantic mode it is impossible to handle
a call that is being forwarded by a proxy, eg receiving a 183 (client, no
answer) and a 200 (voicemail) from 2 different UA's.

3) Fix spiralling calls. Each new branch creates a new pvt.

4) Part of 2) is to not clear the SIP_PAGE2_DIALOG_ESTABLISHED flag on a
BYE, to be able to absorb retransmissions.


I'm sorry this is all in one patch, but I'm a little time contraint to
split them now.
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Relationships       ID      Summary
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related to          0015784 [regression] Simultaneous calls from sa...
related to          0017347 Asterisk generates responses with missi...
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Issue History 
Date Modified    Username       Field                    Change               
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2010-05-18 14:25 lmadsen        Relationship added       related to 0017347  
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