[asterisk-bugs] [Asterisk 0017204]: [patch] Dial()'s do_forward() breaks Local/ channel frame forwarding

[Asterisk Bug Tracker]

The following issue has been ASSIGNED. 
====================================================================== 
https://issues.asterisk.org/view.php?id=17204 
====================================================================== 
Reported By:                one47
Assigned To:                twilson
====================================================================== 
Project:                    Asterisk
Issue ID:                   17204
Category:                   Applications/app_dial
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     assigned
Target Version:             1.6.2.10
Asterisk Version:           SVN 
JIRA:                       SWP-1313 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
====================================================================== 
Date Submitted:             2010-04-19 12:07 CDT
Last Modified:              2010-06-01 16:12 CDT
====================================================================== 
Summary:                    [patch] Dial()'s do_forward() breaks Local/ channel
frame forwarding
Description: 
This was spotted due to an issue that is caused with CDR records of calls
redirected via a SIP 302 message. The dstchannel is recorded incorrectly.


In chan_local:local_queue_frame(), there is a test to see whether
there is a channel or app to forward data to before frames are passed
on:

               if (other->pbx || other->_bridge ||
!ast_strlen_zero(other->appl)) {
                       ast_queue_frame(other, f);
               }

For a call that is being dialled, there is no pbx or bridge object, so
chan_local will only forward data if 'appl' is correctly set.

In app_dial:do_forward(), the original channel is replaced with a new
"forward" channel, but 'appl' is never set on this channel - The
effectively kills frame passing on the new Local/ channel created by
do_forward, and it stays that way until it is optimized away.

====================================================================== 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2010-06-01 16:12 svnbot         Status                   feedback => assigned
======================================================================