Wireshark-bugs: [Wireshark-bugs] [Bug 3136] New: Dissector for ANSI TCAP NATIONAL code:0 not imp

Date: Thu, 18 Dec 2008 06:26:33 -0800 (PST)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=3136

           Summary: Dissector for ANSI TCAP NATIONAL code:0 not implemented.
                    Contact Wireshark developers if you want this supported
           Product: Wireshark
           Version: SVN
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Severity: Normal
          Priority: Low
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: igor.lobiv@xxxxxxxxxxxxxxx


Created an attachment (id=2582)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=2582)
Action code doesn't decoded

Build Information:
Version 1.1.2-SVN-27040 (SVN Rev 27040)

Copyright 1998-2008 Gerald Combs <gerald@xxxxxxxxxxxxx> and contributors.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Compiled with GTK+ 2.14.5, with GLib 2.18.3, with WinPcap (version unknown),
with libz 1.2.3, without POSIX capabilities, with libpcre 7.0, with SMI 0.4.8,
with c-ares 1.6.0, with Lua 5.1, with GnuTLS 2.6.3, with Gcrypt 1.4.3, with MIT
Kerberos, without GeoIP, with PortAudio V19-devel (built Dec 17 2008), with
AirPcap.

Running on Windows XP Service Pack 2, build 2600, with WinPcap version 4.0.2
(packet.dll version 4.0.0.1040), based on libpcap version 0.9.5, without
AirPcap.

Built using Microsoft Visual C++ 9.0 build 30729

Wireshark is Open Source Software released under the GNU General Public
License.

Check the man page and http://www.wireshark.org for more information.
--
Hi,

ANSI MAP doesn't decode ReturnResult Action code.
It is starnge description here:
Dissector for ANSI TCAP NATIONAL code:0

I've checked specification "TCAP ANSI T1.114 2000", and understand that
terminology "National TCAP" or "Private TCAP" is applied for "Operation Code"
only.
You can see "Private TCAP" flag for first message "Analyzed Information Request
Invoke" in attached pcap log.

But for TCAP.ReturnResult parameter "operation code" don't exist at all. 
So it is not possible to understand by ReturnResult if it is "Private TCAP" or
"National TCAP".

Because Invoke and ReturnResult encoded the same TCAP,
it is just possible analyze origination invoke and understand which TCAP was
used "National" or "Private" for both messages.

So I suppose that I attached correct ANSI MAP (WIN) communication, both
messages are used "Private TCAP". But second message parameter Wireshark
doesn't decode.

In attachment: 
output.rec.pcap - two messages ANSI MAP 
1. Analyzed Information Request Invoke
2. ReturnResult (Last) response

ActionCode.JPG - screenshot of decoding ReturnResult

Best wishes,
Igor Lobiv


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