This patch fixes h-exten running misbehavior in manager-redirected

situations.

What it does:
1. A new Flag value is defined in include/asterisk/channel.h,
 AST_FLAG_BRIDGE_HANGUP_DONT, which used as a messenge to the
 bridge hangup exten code not to run the h-exten there (nor
 publish the bridge cdr there). It will done at the pbx-loop
 level instead.
2. In the manager Redirect code, I set this flag on the channel
 if the channel has a non-null pbx pointer. I did the same for the
 second (chan2) channel, which gets run if name2 is set...
 and the first succeeds.
3. I restored the ending of the cdr for the pbx loop h-exten
 running code. Don't know why it was removed in the first place.
4. The first attempt at the fix for this bug was to place code
   directly in the async_goto routine, which was called from a
   large number of places, and could affect a large number of
   cases, so I tested that fix against a fair number of transfer
   scenarios, both with and without the patch. In the process,
   I saw that putting the fix in async_goto seemed not to affect
   any of the blind or attended scenarios, but still, I was
   was highly concerned that some other scenarios I had not tested
   might be negatively impacted, so I refined the patch to 
   its current scope, and jmls tested both. In the process, tho,
   I saw that blind xfers in one situation, when the one-touch
   blind-xfer feature is used by the peer, we got strange 
   h-exten behavior.  So, I  inserted code to swap CDRs and
   to set the HANGUP_DONT field, to get uniform behavior.
5. I added code to the bridge to obey the HANGUP_DONT flag,
   skipping both publishing the bridge CDR, and running
   the h-exten; they will be done at the pbx-loop (higher)
   level instead.
6. I removed all the debug logs from the patch before committing.
7. I moved the AUTOLOOP set/reset in the h-exten code in res_features
   so it's only done if the h-exten is going to be run. A very
   minor performance improvement, but technically correct.


(closes issue #14241)
Reported by: jmls
Patches:
      14241_redirect_no_bridgeCDR_or_h_exten_via_transfer uploaded by murf (license 17)
Tested by: murf, jmls



git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.4@172030 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 4 insertions, 0 deletions

diff --git a/include/asterisk/channel.h b/include/asterisk/channel.h
index 7ae0dbeb5..957d95d5c 100644
--- a/include/asterisk/channel.h
+++ b/include/asterisk/channel.h
@@ -514,6 +514,10 @@ enum {
 	 *  a message aimed at preventing a subsequent hangup exten being run at the pbx_run
 	 *  level */
 	AST_FLAG_BRIDGE_HANGUP_RUN = (1 << 16),
+	/*! This flag indicates that the hangup exten should NOT be run when the 
+	 *  bridge terminates, this will allow the hangup in the pbx loop to be run instead.
+	 *  */
+	AST_FLAG_BRIDGE_HANGUP_DONT = (1 << 17),
 };
 
 /*! \brief ast_bridge_config flags */