https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6893
Summary: CIP Motion/Safety bugfixes
Product: Wireshark
Version: 1.7.x (Experimental)
Platform: x86
OS/Version: Windows XP
Status: NEW
Severity: Normal
Priority: Low
Component: Wireshark
AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
ReportedBy: mmann78@xxxxxxxxxxxx
Michael Mann <mmann78@xxxxxxxxxxxx> changed:
What |Removed |Added
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Attachment #7934| |review_for_checkin?
Flags| |
Created attachment 7934
--> https://bugs.wireshark.org/bugzilla/attachment.cgi?id=7934
CIP Motion dissected only with ForwardOpen
Build Information:
Version 1.7.1 (SVN Rev 41229 from /trunk)
Copyright 1998-2012 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+ 2.22.1, with Cairo 1.10.2, with Pango 1.28.3, with
GLib 2.26.1, with WinPcap (4_1_2), with libz 1.2.5, without POSIX capabilities,
with SMI 0.4.8, with c-ares 1.7.1, with Lua 5.1, with Python 2.7, with GnuTLS
2.10.3, with Gcrypt 1.4.6, with MIT Kerberos, with GeoIP, with PortAudio
V19-devel (built Feb 28 2012), with AirPcap.
Running on Windows XP Service Pack 3, build 2600, with WinPcap version 4.1.2
(packet.dll version 4.1.0.2001), based on libpcap version 1.0 branch 1_0_rel0b
(20091008), GnuTLS 2.10.3, Gcrypt 1.4.6, without AirPcap.
Built using Microsoft Visual C++ 9.0 build 30729
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The attached patches fix the following issues:
1. CIP-Motion shouldn't be a heuristic dissector. CIP-Motion packets are
determined by specific fields in a CIP ForwardOpen. I ran into situations
where CIP-Motion's "vague" heuristics incorrectly dissected packets meant for
CIP-Safety. Of course this requires the ForwardOpen to be in the trace, but it
is the most deterministic way to have CIP-Motion packets.
2. Minor bugfix to the CIP-Safety dissector. A couple of fields were
"missing", causing errant malformed packets
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