Wireshark: Decoding of System Information on BCCH

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Harald Welte laforge at gnumonks.org
Thu Nov 26 22:54:21 UTC 2009


Hi!

As Dieter has noticed, GSM traces from gammu / nokia DCT3 phones show the
complete SYS INFO decode inside wireshark.  However, the RSL messages BCCH
INFORMATION do not decode it.

I've revolved this problem and submitted a patch to the wireshark team,
you can get it from https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4268

Please note: This patch does not yet address the problem for the SI5/SI6 in
SACCH FILLING.  The solution is not as easy, since in this case a generic
L3 IE is handed of to the GSM_A_DTAP rather than GSM_A_CCCH dissector.

If anyone wants to help out with fixing this for the SACCH, I'm sure many
OpenBSC users and wireshark guys will be happy to receive a patch/fix.

Regards,
	Harald

-- 
- Harald Welte <laforge at gnumonks.org>           http://laforge.gnumonks.org/
============================================================================
"Privacy in residential applications is a desirable marketing option."
                                                  (ETSI EN 300 175-7 Ch. A6)
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