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

Asterisk Bug Tracker noreply at bugs.digium.com
Mon May 17 04:24:52 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:                     new
JIRA:                        
Reviewboard Link:            
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Date Submitted:             2010-02-15 16:20 CST
Last Modified:              2010-05-17 04:24 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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---------------------------------------------------------------------- 
 (0121953) tsearle (reporter) - 2010-05-17 04:24
 https://issues.asterisk.org/view.php?id=16831#c121953 
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Am I correct in understanding that it is crashing on loading the kernel
module dahdi?

For me it's not normal that you should experience crash on loading of the
module, it's logic only gets invoked when you run dahdi pcap.

Try compiling the source by hand,
for me I used
dahdi-trunk revision 7722
and kernel 2.6.26

What type of card are you trying to use, and are you trying to do ss7 or
ISDN?  Bad things would probably happen if you tried to use this on an
FXO/FXS card... 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2010-05-17 04:24 tsearle        Note Added: 0121953                          
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