Wireshark-bugs: [Wireshark-bugs] [Bug 9564] New: ISUP(ANSI) Backwards Call Indicators decoded in
Date: Mon, 16 Dec 2013 14:25:23 +0000
Bug ID 9564
Summary ISUP(ANSI) Backwards Call Indicators decoded incorrectly
Classification Unclassified
Product Wireshark
Version 1.10.3
Hardware x86
OS Windows 7
Status UNCONFIRMED
Severity Minor
Priority Low
Component Dissection engine (libwireshark)
Assignee bugzilla-admin@wireshark.org
Reporter geoffreyhart@sympatico.ca

Created attachment 12322 [details]
ISUP (ANSI) ACM Message

Build Information:
Version 1.10.3 (SVN Rev 53022 from /trunk-1.10)

Copyright 1998-2013 Gerald Combs <gerald@wireshark.org> 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 (64-bit) with GTK+ 2.24.14, with Cairo 1.10.2, with Pango 1.30.1, with
GLib 2.34.1, with WinPcap (4_1_3), with libz 1.2.5, without POSIX capabilities,
without libnl, with SMI 0.4.8, with c-ares 1.9.1, with Lua 5.1, without Python,
with GnuTLS 2.12.18, with Gcrypt 1.4.6, without Kerberos, with GeoIP, with
PortAudio V19-devel (built Nov  1 2013), with AirPcap.

Running on 64-bit Windows 7 Service Pack 1, build 7601, with WinPcap version
4.1.3 (packet.dll version 4.1.0.2980), based on libpcap version 1.0 branch
1_0_rel0b (20091008), GnuTLS 2.12.18, Gcrypt 1.4.6, without AirPcap.
      Intel(R) Core(TM) i7-2720QM CPU @ 2.20GHz, with 16265MB of physical
memory.


Built using Microsoft Visual C++ 10.0 build 40219

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

Check the man page and http://www.wireshark.org for more information.
--
In ISUP(ANSI) Backward Call Indicators, a few of the bits are being decoded
wrong per the ATIS-1000113.3.2005 definition - which is unfortunately not a
free public document.

Going through the Wireshark 1.10.3 decode:

Charge Indicator - Correct
Called Party's status indicator - Correct
Called Party's category indicator - Correct
End-to-End Method Indicator - Correct

Internetworking Indicator - Correct
End-to-End Information Indicator - WRONG
  - This is the ITU spec, but in ANSI it is "IAM Segmentation Indicator"
    0 = No Indication
    1 = Additional information has been received and incorporated into call
set-up
ISDN User Part Indicator - Correct
Holding Indicator - WRONG
   - In ITU spec, it is 'requested', in ANSI spec it is 'Required', so ANSI
values are:
    0 = holding not required (default)
    1 = holding required (No procedure specified for U.S. networks)
ISDN Access Indicator - Correct
Echo Control Device Indicator - Correct
SCCP Method Indicator - Correct


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