Wireshark-users: Re: [Wireshark-users] gprscdr

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From: Anders Broman <anders.broman@xxxxxxxxxxxx>
Date: Mon, 29 Feb 2016 09:01:58 +0000

Hi,

The gprscdr dissector isn’t registered by name so the tshark command will not work. Adding “registration by name” isn’t straight forward as

The format of the CDR isn’t backwards compatible the GTP dissector calls

dissect_gprscdr_GPRSCallEventRecord_PDU() if Release is 6 or less and

issect_gprscdr_GPRSRecord_PDU(next_tvb, pinfo, cdr_dr_tree, NULL) otherwise.

 

Regards

Anders

 

From: wireshark-users-bounces@xxxxxxxxxxxxx [mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Edward Vogel
Sent: den 27 februari 2016 01:38
To: wireshark-users@xxxxxxxxxxxxx
Subject: [Wireshark-users] gprscdr

 

Hi all,

I have some CDRs in a file that I'm trying to decode with wireshark or tshark. The file has the raw asn.1 ber with no encapsulation. I found the "HowToDissectAnything" page which seems to give exactly what I need.

I got the http example from that page to work:

$ tshark -o 'uat:user_dlts:"User 0 (DLT=147)","http","0","","0",""' -r httpresp.pcap 

  1   0.000000              ->              HTTP  HTTP/1.1 200 OK 

 

But trying the same thing with a CDR doesn't seem to work:

$ tshark -o 'uat:user_dlts:"User 0 (DLT=147)","gprscdr","0","","0",""' -r 1.pcap 

tshark: Invalid -o flag "uat:user_dlts:"User 0 (DLT=147)","gprscdr","0","","0","""

 

Any ideas?

Thanks,

Ed