[asterisk-bugs] [DAHDI-linux 0016831]: [patch] adding ss7 pcap support to dahdi

Asterisk Bug Tracker noreply at bugs.digium.com
Wed Oct 6 10:31:49 CDT 2010


A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=16831 
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Reported By:                tsearle
Assigned To:                
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Project:                    DAHDI-linux
Issue ID:                   16831
Category:                   NewFeature
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     feedback
JIRA:                        
Reviewboard Link:            
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Date Submitted:             2010-02-15 16:20 CST
Last Modified:              2010-10-06 10:31 CDT
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Summary:                    [patch] adding ss7 pcap support to dahdi
Description: 
as per the thread on the libss7 mailing list

1. changes to the dahdi driver to add ioctls to mirror reads/writes
from a signaling channel to a pseudo channel
2. a corresponding user app to set up the mirroring and record the
traffic in a pcap

This seems to work though I'm not sure if it's the best solution
design-wise.
I might be abusing the pseudo channel concept.

to compile the app do the following
gcc dahdi_pcap.c -o dahdi_pcap -lpcap

and the syntax to run it is
./dahdi_pcap chan1  [chan2]* pcap.pcap

e.g.
./dahdi_pcap 16 47 test.pcap
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---------------------------------------------------------------------- 
 (0127757) sruffell (administrator) - 2010-10-06 10:31
 https://issues.asterisk.org/view.php?id=16831#c127757 
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tsearle:  I stand corrected.  I see how DAHDI_SETCONF only works for
channels in audio mode currently (on line 4846 of
http://svn.asterisk.org/view/dahdi/linux/trunk/drivers/dahdi/dahdi-base.c?revision=9423&view=markup)


What about adding a flag (like DAHDI_CONF_PSEUDO_LISTENER etc..) to bypass
that check?   That way we could still use the existing monitoring
apparatus?  It could be DAHDI_CONF_NONAUDIOCHANNELS (or something...) 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2010-10-06 10:31 sruffell       Note Added: 0127757                          
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