Wireshark-bugs: [Wireshark-bugs] [Bug 11555] New: 802.11u Hot Spot - Decoding of DSCP Range desc
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Tue, 29 Sep 2015 22:03:24 +0000
Bug ID 11555
Summary 802.11u Hot Spot - Decoding of DSCP Range description user priority
Product Wireshark
Version 1.12.7
Hardware x86
OS Windows 7
Status UNCONFIRMED
Severity Major
Priority Low
Component Dissection engine (libwireshark)
Assignee bugzilla-admin@wireshark.org
Reporter dilip.patel@hpe.com 

Created attachment 13892 [details]
wieshark trace that has Association response packet 557.

Build Information:
Version 1.12.7 (v1.12.7-0-g7fc8978 from master-1.12)

Copyright 1998-2015 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+ 2.24.23, with Cairo 1.10.2, with Pango 1.34.0, with
GLib 2.38.0, with WinPcap (4_1_3), with libz 1.2.5, with SMI 0.4.8, with c-ares
1.9.1, with Lua 5.2, without Python, with GnuTLS 3.2.15, with Gcrypt 1.6.2,
without Kerberos, with GeoIP, with PortAudio V19-devel (built Aug 12 2015),
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 3.2.15, Gcrypt 1.6.2, without AirPcap.
Intel(R) Core(TM) i7-4800MQ CPU @ 2.70GHz, with 15641MB 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.
--
the decoding of Tag: QOS Map Set 110, DSCP Range Description for Packet Number
557 Association Response (in attached capture file), has UP=1,UP=2,... UP=8.

The Actual User Priority should be UP=0, UP=1,.. UP=7, as per 802.11u
specification. There is no such thing as user priority=8. Hence, it appears
wireshark is decoding this incorrectly.

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