https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4729
Summary: Patch for decoding IPFIX scope data
Product: Wireshark
Version: unspecified
Platform: x86
OS/Version: All
Status: NEW
Severity: Normal
Priority: Low
Component: Wireshark
AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
ReportedBy: irino@xxxxxxxxxxxxxx
Created an attachment (id=4593)
--> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=4593)
Patch for decoding IPFIX scope data
Build Information:
wireshark 1.3.5 (SVN Rev 32609 from /trunk)
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 with GTK+ 2.20.0, (32-bit) with GLib 2.24.0, with libpcap 1.0.0, with
libz 1.2.3.3, without POSIX capabilities, without libpcre, without SMI, without
c-ares, without ADNS, without Lua, without Python, with GnuTLS 2.8.5, with
Gcrypt 1.4.4, with MIT Kerberos, without GeoIP, without PortAudio, without
AirPcap, with new_packet_list.
Running on Linux 2.6.32-21-generic, with libpcap version 1.0.0, with libz
1.2.3.3, GnuTLS 2.8.5, Gcrypt 1.4.4.
Built using gcc 4.4.3.
--
The function "dissect_v9_pdu" of "epan/dissectors/packet-netflow.c" decodes
NetFlow v9 packets and IPFIX packets with same logic. But, the "scope field" is
different between NetFlow v9 and IPFIX. NetFlow v9 has only 5 kind of scopes
which described in section "6.1. Options Template FlowSet Format" of RFC3954.
On the other hand, many Information Elements defined in
"http://www.iana.org/assignments/ipfix/ipfix.xml"; can be used as scope fields
in IPFIX packets.
Hence, this patch separates the function "dissect_v9_pdu" into
"dissect_v9_pdu_scope" and "dissect_v9_pdu_data" to change behavior for IPFIX
scope fields. "dissect_v9_pdu_scope" decodes only NetFlow v9 scope data
records. "dissect_v9_pdu"_data decodes NetFlow v9 (non-scope) flow records,
IPFIX (non-scope) flow records and IPFIX scope data records.
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