Wireshark-bugs: [Wireshark-bugs] [Bug 12104] New: SIP MESSAGE - SMS TPDU dissector TP-MTI decodi
Date: Wed, 10 Feb 2016 10:48:51 +0000
Bug ID 12104
Summary SIP MESSAGE - SMS TPDU dissector TP-MTI decoding error
Product Wireshark
Version 2.0.1
Hardware x86-64
OS Windows 10
Status UNCONFIRMED
Severity Normal
Priority Low
Component Dissection engine (libwireshark)
Assignee bugzilla-admin@wireshark.org
Reporter djzerorts@gmail.com

Created attachment 14316 [details]
PCAP containing SMS TPDU

Build Information:
Version 2.0.1 (v2.0.1-0-g59ea380 from master-2.0)

Copyright 1998-2015 Gerald Combs <gerald@wireshark.org> and contributors.
License GPLv2+: GNU GPL version 2 or later
<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
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 (32-bit) with Qt 5.3.2, with WinPcap (4_1_3), with libz 1.2.8, with
GLib 2.38.0, with SMI 0.4.8, with c-ares 1.9.1, with Lua 5.2, with GnuTLS
3.2.15, with Gcrypt 1.6.2, with MIT Kerberos, with GeoIP, with QtMultimedia,
with AirPcap.

Running on 64-bit Windows 10, build 10586, with locale C, with WinPcap version
4.1.3 (packet.dll version 4.1.0.2980), based on libpcap version 1.0 branch
1_0_rel0b (20091008), with GnuTLS 3.2.15, with Gcrypt 1.6.2, without AirPcap.
Intel(R) Core(TM) i3 CPU       M 370  @ 2.40GHz (with SSE4.2), with 6006MB of
physical memory.


Built using Microsoft Visual C++ 12.0 build 31101

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

Check the man page and http://www.wireshark.org for more information.
--
Usecase : SMS over SIP, method MESSAGE
3GPP SMS for SIP format, PDU mode

Message body contains RP-DATA+TPDU. 

RP-DATA is decoded correctly, but TPDU data is not. 

TPDU Sent : 

0691947151000011000A9194715100000000AA05F330BB4E07

SMSC : 06919471510000
PDU  : 11

11H in binary is : 
00010001


RP UDHI SRR VPF RD MTI
0   0    0  10  0  01   

MTI 01 is set for SMS-SUBMIT.
However, Wireshark decodes the MTI as 10, as seen in attached pcap which sets
the method to SMS-COMMAND. 

This should be fixed.


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