Wireshark-bugs: [Wireshark-bugs] [Bug 6324] New: patch for bgp mcast-vpn nlri dissection
Date: Fri, 9 Sep 2011 00:19:35 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6324

           Summary: patch for bgp mcast-vpn nlri dissection
           Product: Wireshark
           Version: SVN
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: Low
         Component: Wireshark
        AssignedTo: [email protected]
        ReportedBy: [email protected]


Created an attachment (id=6966)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=6966)
code changes

Build Information:
wireshark 1.7.0 (SVN Rev 38825 from /trunk)

Copyright 1998-2011 Gerald Combs <[email protected]> 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 (64-bit) with GTK+ 2.24.4, with Cairo 1.10.2, with Pango 1.28.4, with
GLib 2.28.6, with libpcap 1.1.1, with libz 1.2.3.4, without POSIX capabilities,
with threads support, without SMI, without c-ares, without ADNS, without Lua,
without Python, without GnuTLS, without Gcrypt, without Kerberos, without
GeoIP,
without PortAudio, without AirPcap.

Running on Linux 2.6.38-8-generic, with locale en_US.UTF-8, with libpcap
version
1.1.1, with libz 1.2.3.4.

Built using gcc 4.5.2.
--
I've updated the bgp dissector code to support the mcast-vpn nlri. These nlri's
are used to implement multicast vpn (mvpn) and are fully described in
draft-ietf-l3vpn-2547bis-mcast-bgp-08.txt (section 4).

Attached is a packet dump that I used to test my code. Note that there are 7
route types described in the draft but there are only 4 included in the dump
(intra-as ipmsi ad route, soure-active ad route, source-tree join & shared-tree
join are included; inter-as ipmsi ad route, spmsi ad route & leaf ad route are
not included). I don't have access to a network where all types are used.

Attached is also my patch. This is my first patch so I've added a version
number because I suspect that it will not be perfect the first time.

thanks,
Thomas

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