Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 11961] New: Add support for ITU-T G.7041/Y.1303 GFP (Generic Framing Procedure

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Bug ID	11961
Summary	Add support for ITU-T G.7041/Y.1303 GFP (Generic Framing Procedure)
Product	Wireshark
Version	Git
Hardware	x86
OS	All
Status	CONFIRMED
Severity	Enhancement
Priority	Low
Component	Dissection engine (libwireshark)
Assignee	bugzilla-admin@wireshark.org
Reporter	johnthacker@gmail.com

Created attachment 14199 [details]
GFP-F containing Ethernet, produced by test gear

Build Information:
TShark (Wireshark) 2.1.0 (v2.1.0rc0-996-gb031e53 from unknown)

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 (64-bit) with libpcap, without POSIX capabilities, with libnl 3, with
libz 1.2.3, with GLib 2.28.8, without SMI, with c-ares 1.10.0, with Lua 5.1,
without GnuTLS, with Gcrypt 1.4.5, without Kerberos, with GeoIP.

Running on Linux 2.6.32-573.7.1.el6.x86_64, with locale en_US.UTF-8, with
libpcap version 1.4.0, with libz 1.2.3, with Gcrypt 1.4.5.
       Intel(R) Core(TM) i5-3340M CPU @ 2.70GHz (with SSE4.2)

Built using gcc 4.4.7 20120313 (Red Hat 4.4.7-16).
--
Add support for Generic Framing Procedure. Generic Framing Procedure (GFP) is
used to map octet-aligned variable length payloads (e.g. Ethernet, MPLS,
octet-aligned PPP, IP) into octet-synchronous signals such as SONET/SDH (ITU-T
G.707) and OTN (ITU-T G.709). GFP is a telecommunications industry standard
defined in ITU-T G.7041/Y.1303. (https://www.itu.int/rec/T-REC-G.7041/)

Libpcap has long reserved link type for GFP (170 for Transparent mode, 171 for
Framed mode) and the patch will edit pcap-common and wtap to include support.

The attached file was produced by test equipment, so everything the encoded
Ethernet past the Ethernet addresses is the output of a PBRS and will look a
little odd. A third party tool with support for the reserved PCAP values for
GFP produced the pcap file, extracting it from the SONET/SDH that contained the
GFP.

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