Wireshark-bugs: [Wireshark-bugs] [Bug 6610] New: Implementation of extensions to MPLS-TP BFD and

Date: Tue, 22 Nov 2011 10:13:01 -0800 (PST)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6610

           Summary: Implementation of extensions to MPLS-TP BFD and LSP
                    Ping payloads ( with bug 6607,6608,6609)
           Product: Wireshark
           Version: 1.7.x (Experimental)
          Platform: x86
        OS/Version: Ubuntu
            Status: NEW
          Severity: Enhancement
          Priority: Low
         Component: Wireshark
        AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
        ReportedBy: krishnamurthy.mayya@xxxxxxxxxxxxxx


Created an attachment (id=7457)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=7457)
BFD packet demonstrating the added faeatures

Build Information:
wireshark 1.7.1-SVN-39983 (SVN Rev Unknown from unknown)

Copyright 1998-2011 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 (32-bit) with GTK+ 2.22.0, with Cairo 1.10.0, with Pango 1.28.2, with
GLib 2.26.1, with libpcap 1.1.1, with libz 1.2.3.4, without POSIX capabilities,
without SMI, without c-ares, without ADNS, without Lua, with Python 2.6.6, with
GnuTLS 2.8.6, with Gcrypt 1.4.5, without Kerberos, without GeoIP, without
PortAudio, without AirPcap.

Running on Linux 2.6.35-30-generic, with locale en_US.UTF-8, with libpcap
version 1.1.1, with libz 1.2.3.4, GnuTLS 2.8.6, Gcrypt 1.4.5.

Built using gcc 4.4.5.

--
--
TITLE:
------
Implementation of extensions to MPLS-TP BFD and LSP Ping payloads

Sources:
-------- 
1. GAL/GACH support   - RFC 5586
2. BFD extension      - RFC 6428
3. LSP Ping extension - RFC 6426

Description:
------------
1. GAL/GACH support has been added as per RFC 5586, to decode the GAL label and
   ACH header. The ACH header has a channel type field which specifies the
payload carried is BFD CC, BFD CV or LSP Ping.

Changes made in file - packet-mpls.c

2. BFD extension has been added as per RFC 6428, to decode the BFD packet with
ACH encapsulation(without IP/UDP header encapsulation). The channel type in ACH
header identifies the BFD payload as BFD CC or CV packet. Also decoding for
MPLS-TP source MEP-ID TLV in BFD CV packet has been added.

Changes made in file - packet-bfd.c

3. LSP Ping extension has been added as per RFC 6426, to decode the LSP Ping
packet with ACH encapsulation(without IP/UDP header encapsulation). The channel
type in ACH header identifies the LSP Ping packet. Also support for decoding 
new TLVs and Sub-TLVs defined in the RFC 6426 has been provided.

Attachment:
------------

A sample BFD-test packet demonstrating the above mentioned features has been
attached

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