| Bug ID |
12490
|
| Summary |
Incorrect decode of 1394 dissection as part of 1722 dissection
|
| Product |
Wireshark
|
| Version |
2.0.0
|
| Hardware |
x86
|
| OS |
Mac OS X 10.11
|
| Status |
UNCONFIRMED
|
| Severity |
Major
|
| Priority |
Low
|
| Component |
Dissection engine (libwireshark)
|
| Assignee |
[email protected]
|
| Reporter |
[email protected]
|
Created attachment 14612 [details]
1722 capture
Build Information:
Version 2.0.0 (v2.0.0-0-g9a73b82 from master-2.0)
Copyright 1998-2015 Gerald Combs <[email protected]> and contributors.
License GPLv2+: GNU GPL version 2 or later
<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
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 Qt 5.3.2, with libpcap, without POSIX capabilities, with
libz 1.2.5, with GLib 2.36.0, with SMI 0.4.8, without c-ares, without ADNS,
with
Lua 5.2, with GnuTLS 2.12.19, with Gcrypt 1.5.0, with MIT Kerberos, with GeoIP,
with QtMultimedia, without AirPcap.
Running on Mac OS X 10.11.5, build 15F34 (Darwin 15.5.0), with locale C, with
libpcap version 1.5.3 - Apple version 54, with libz 1.2.5, with GnuTLS 2.12.19,
with Gcrypt 1.5.0.
Intel(R) Core(TM) i7-4980HQ CPU @ 2.80GHz (with SSE4.2)
Built using llvm-gcc 4.2.1 (Based on Apple Inc. build 5658) (LLVM build
2336.9.00).
Wireshark is Open Source Software released under the GNU General Public
License.
Check the man page and http://www.wireshark.org for more information.
--
decode of 1394 is incorrect if the Format Tag is 0x00.
The standard states that Format Tag 0x00 indicates no CIP header.
Tag:
00 = No CIP header included
01 = CIP header included as specified in 6.1.3
10 = Reserved
11 = Reserved
Wireshark decodes the next data bytes as a CIP header. It also seems to ignore
the 1394 header CRC and decodes that as part of the non existent CIP header.
pcap file attached is a capture from a BroadR Reach camera sending data using
IEEE1722.
http://grouper.ieee.org/groups/1722/
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