https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4197
Summary: Neighbour Cell Description 2 decode error
Product: Wireshark
Version: 1.2.3
Platform: x86
OS/Version: Windows XP
Status: NEW
Severity: Normal
Priority: Low
Component: Wireshark
AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
ReportedBy: slump2000@xxxxxxxx
Created an attachment (id=3892)
--> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=3892)
screenshot for "unknow format" Neighbour Cell Description 2
Build Information:
Compiled with GTK+ 2.16.2, with GLib 2.20.3, 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 2.8.1, with Gcrypt 1.4.4, with MIT
Kerberos, with GeoIP, with PortAudio V19-devel (built Oct 27 2009), with
AirPcap.
Running on Windows XP Service Pack 3, build 2600, 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 2.8.1, Gcrypt 1.4.4, without AirPcap.
Built using Microsoft Visual C++ 9.0 build 30729
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in epan/dissectors/packet-gsm_a_rr.c , both de_rr_neigh_cell_desc and
de_rr_neigh_cell_desc2 call dissect_arfcn_list, but accroding to ts44.018, the
"Neighbour Cell Description" and "Neighbour Cell Description 2" have different
format ID, "Neighbour Cell Description" use bit 128,127,124,123,122 ,
"Neighbour Cell Description 2" use bit 128,124,123,122. in
dissect_arfcn_list() use bit 128,127,124,123,122 to decode format id , so for
"Neighbour Cell Description 2", it report unknown format id. attach is the
screenshot for "system infomation type 5ter" which use "Neighbour Cell
Description 2"
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