Wireshark-bugs: [Wireshark-bugs] [Bug 12051] New: Megaco with AuthenticationHeader (AU) does not

Date: Wed, 27 Jan 2016 04:42:21 +0000
Bug ID 12051
Summary Megaco with AuthenticationHeader (AU) does not decoded in wireshark
Product Wireshark
Version unspecified
Hardware All
OS Mac OS X 10.11
Status CONFIRMED
Severity Minor
Priority Low
Component Dissection engine (libwireshark)
Assignee [email protected]
Reporter [email protected]

Created attachment 14280 [details]
Megaco packet with AU header.

Build Information:
kagaribi% tshark -v
TShark (Wireshark) 2.0.1 (SVN Rev Unknown from unknown)

Copyright 1998-2015 Gerald Combs <[email protected]> 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 (64-bit) with libpcap, with POSIX capabilities (Linux), with libnl 3,
with libz 1.2.8, with GLib 2.44.1, without SMI, without c-ares, without ADNS,
without Lua, with GnuTLS 3.3.17, with Gcrypt 1.6.3, without Kerberos, without
GeoIP.

Running on Linux 4.1.12-gentoo, with locale
LC_CTYPE=ja_JP.UTF-8;LC_NUMERIC=C;LC_TIME=C;LC_COLLATE=C;LC_MONETARY=C;LC_MESSAGES=C;LC_PAPER=C;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=C;LC_IDENTIFICATION=C,
with libpcap version 1.7.4, with libz 1.2.8, with GnuTLS 3.3.17, with Gcrypt
1.6.3.
        Intel(R) Atom(TM) CPU  C2750  @ 2.40GHz (with SSE4.2)

Built using gcc 4.9.3.
--
RFC3015 indicates that megaco packet may have AuthenticationHeader (short form
'AU') as 
 + A.2 ASN.1 syntax specification, and
 + B.2 ABNF specification.

Current wireshark seems not to support AU header, i.e. wireshark dissector only
show "Megaco Data" for whole packet data and it does not show any decoded
information.
Please decode attached megaco_sample.pcap, for example.

Currently I'm writing code to support MEGACO with AU header, so I will submit
it soon.
#As first phase, my code will not show AU header information, 2nd or further
phase it will be supported.


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