[asterisk-bugs] [Asterisk 0018049]: Chanspy using spy groups not getting audio from calls placed to a queue using local channel

Asterisk Bug Tracker noreply at bugs.digium.com
Mon Sep 27 14:45:24 CDT 2010


The following issue has been UPDATED. 
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https://issues.asterisk.org/view.php?id=18049 
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Reported By:                esmola
Assigned To:                
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Project:                    Asterisk
Issue ID:                   18049
Category:                   Applications/app_chanspy
Reproducibility:            sometimes
Severity:                   minor
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           1.4.37-rc1 
JIRA:                        
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:             2010-09-24 12:54 CDT
Last Modified:              2010-09-27 14:45 CDT
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Summary:                    Chanspy using spy groups not getting audio from
calls placed to a queue using local channel
Description: 
There is a queue member 650 which is added as a member to the queue
"vlcn_group_777" by inserting into the queue_member_table RealTime table.

INSERT INTO queue_member_table (context,queue_name, interface) VALUES
('vlcn', 'vlcn_group_777', 'Local/650 at vlcn_group_777_agents')


A call is then placed and routed to that Queue:

vlcn_group_777, s, 1, Queue(vlcn_group_777|nr|||20)
vlcn_group_777, s, 2, GoTo(vlcn_aa_Main|s|1)

The Queue() application sends the call to the queue member at the Local/
interface:

vlcn_group_777_agents, _X., 1, Set(SBC_HOST=)
vlcn_group_777_agents, _X., 2,
Set(__SPYGROUP=${SPYGROUP}:sip${EXTEN}_vlcn)
vlcn_group_777_agents, _X., 3, Dial(SIP/sip${EXTEN}_vlcn${SBC_HOST})

You see that above, we set __SPYGROUP for this party so that another user
may be able to ChanSpy() on them without knowing their actual SIP/ channel



Next, another user attempts to spy on the extension 650 taking the queue
call above:


vlcn_listenlive, _XXX, 1,
Gosub(vlcn_listenlive_listener_whitelist|${CALLERID(num)}|1)
vlcn_listenlive, _XXX, 2,
Gosub(vlcn_listenlive_listenee_whitelist|${EXTEN}|1)
vlcn_listenlive, _XXX, 3, Authenticate(123456)
vlcn_listenlive, _XXX, 4, Set(GROUP()=vlcn_ll_${EXTEN})
vlcn_listenlive, _XXX, 5, GotoIf($[${GROUP_COUNT(vlcn_ll_${EXTEN})} >
1]?vlcn_listenlive_mutex|s|1)
vlcn_listenlive, _XXX, 6, Wait(1)
vlcn_listenlive, _XXX, 7, ChanSpy(|qv(4)g(sip${EXTEN}_vlcn))
vlcn_listenlive, _XXX, 8, Hangup()


Note that we use the g() option for ChanSpy().


Result: No audio is heard by the Spying party.
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Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2010-09-27 14:45 lmadsen        Severity                 major => minor      
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