Wireshark-bugs: [Wireshark-bugs] [Bug 2959] New: rudp plugin dissector lookup acceleration and c
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Mon, 13 Oct 2008 05:43:50 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=2959

           Summary: rudp plugin dissector lookup acceleration and checksum
                    display
           Product: Wireshark
           Version: SVN
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: Minor
          Priority: Low
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: flo@xxxxxxxxxx


Build Information:
Version 1.1.2 (SVN Rev 26426)

Copyright 1998-2008 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 with GTK+ 2.12.8, with GLib 2.16.2, with libpcap 0.9.8, with libz
1.2.3.3, with POSIX capabilities (Linux), with libpcre 7.6, without SMI,
without
c-ares, with ADNS, without Lua, with GnuTLS 2.4.1, with Gcrypt 1.4.0, with MIT
Kerberos, with PortAudio V19-devel (built Oct 25 2007), without AirPcap.

Running on Linux 2.6.24-rc8, with libpcap version 0.9.8.

Built using gcc 4.2.2 (Debian 4.2.2-1).

--

rudp looks up the ciscosm dissector for every single packet. Make this a one
time in proto_handoff and use the dissector handle.

While at it - decode the checksum when there is one. An indicator is that the
header length has space for the checksum.

Additionally we have seen "stray bytes" after the checksum we can't explain. So
decode them as data when there are some.

Flo


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