https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5250
Summary: Add vendor identifier dissector access to BACnet
Private Transfer Msgs
Product: Wireshark
Version: SVN
Platform: x86
OS/Version: Windows XP
Status: NEW
Severity: Enhancement
Priority: Low
Component: Wireshark
AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
ReportedBy: ljtconsulting@xxxxxxxxx
Build Information:
TShark 1.5.0-SVN-ALC-092010
Copyright 1998-2010 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 GLib 2.22.4, with WinPcap (version unknown), with libz
1.2.3, without POSIX capabilities, without libpcre, with SMI 0.4.8, with c-ares
1.7.1, with Lua 5.1, without Python, with GnuTLS 2.8.5, with Gcrypt 1.4.5, with
MIT Kerberos, with GeoIP.
Running on Windows XP Service Pack 3, build 2600, with WinPcap version 4.1.1
(packet.dll version 4.1.0.1753), based on libpcap version 1.0 branch 1_0_rel0b
(20091008).
Built using Microsoft Visual C++ 9.0 build 21022
--
BACnet has a private transfer service which is vendor specific. The start of
each request and response contains the vendor identifier. I've added a way for
vendors to provide their own dissectors by registering their vendor identifier.
The packet-bacapp.c method fConfirmedPrivateTransfer has been modified to look
for a vendor specified dissector. If found it will be run. If not found we
default to running the standard dissection included in packet-bacapp.c.
I modified the summary column display for private transfer messages so that the
summary now displays the Vendor Identifier (V=xx) and the Service Number
(SN=xx).
I also removed 'static' from several useful BACnet methods and value_strings to
allow access in vendor specified dissectors.
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