https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4973
Summary: H.248 Notify Request: Observed Event "Generic" decoded
wrongly
Product: Wireshark
Version: 1.2.9
Platform: Other
OS/Version: Windows Vista
Status: NEW
Severity: Normal
Priority: Low
Component: Wireshark
AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
ReportedBy: Christian.Sieboerger@xxxxxx
Build Information:
Version 1.2.9 (SVN Rev 33171)
Copyright 1998-2010 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+ 2.16.6, (32-bit) with GLib 2.22.4, with WinPcap (version
unknown), with libz 1.2.3, without POSIX capabilities, without libpcre, with
SMI
0.4.8, with c-ares 1.7.0, with Lua 5.1, with GnuTLS 2.8.5, with Gcrypt 1.4.5,
with MIT Kerberos, with GeoIP, with PortAudio V19-devel (built Jun 8 2010),
with AirPcap.
Running on 32-bit Windows Vista Service Pack 1, build 6001, with WinPcap
version
4.1.1 (packet.dll version 4.1.0.1753), based on libpcap version 1.0 branch
1_0_rel0b (20091008), GnuTLS 2.8.5, Gcrypt 1.4.5, without AirPcap.
Built using Microsoft Visual C++ 9.0 build 30729
--
This observed events descriptor "30 15 80 04 00 01 00 01 a2 0d 30 0b 80 02 00
01 a1 05 04 03 0a 01 02" is decoded wrongly:
ObservedEvent
eventName: 00010001 Generic H.248.1 Annex E (0001)
Package: Generic H.248.1 Annex E (0x0001)
Event ID: Cause (1)
eventParList: 1 item
EventParameter
Parameter: NR (Normal Release) (1)
eventParamValue: 1 item
Generic Cause: Unknown (0x000a0102)
Correct should be:
ObservedEvent
eventName: 00010001 Generic H.248.1 Annex E (0001)
Package: Generic H.248.1 Annex E (0x0001)
Event ID: Cause (1)
eventParList: 1 item
EventParameter
Parameter: Generalcause (1)
eventParamValue: 1 item
Generic Cause: UR (Unavailable Resources)
This is according to ITU-T Rec. H.248.1 (05/2002), Annex E.1 Generic:
E.1 Generic
PackageID: g (0x0001)
Version: 1
Extends: None
Description:
Generic package for commonly encountered items
E.1.2 Events
Cause
EventID: cause (0x0001)
Generic error event
EventsDescriptor parameters: None
ObservedEvents Descriptor Parameters:
General Cause
ParameterID: Generalcause (0x0001)
This parameter groups the failures into six groups, which the MGC may act
upon.
Type: enumeration
Possible values:
"NR" Normal Release (0x0001)
"UR" Unavailable Resources (0x0002)
"FT" Failure, Temporary (0x0003)
"FP" Failure, Permanent (0x0004)
"IW" Interworking Error (0x0005)
"UN" Unsupported (0x0006)
Failure Cause
ParameterID: Failurecause (0x0002)
Possible values: OCTET STRING
Description: The Failure Cause is the value generated by the Released
equipment, i.e. a
released network connection. The concerned value is defined in the
appropriate bearer
control protocol.
Please verify also the implementation of the other values under "General Cause"
and "Failure Cause".
--
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