Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 6710] New: Malformed packet AMS for Read Device Info Read State Request

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https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6710

           Summary: Malformed packet AMS for Read Device Info Read State
                    Request
           Product: Wireshark
           Version: unspecified
          Platform: x86
        OS/Version: Windows 7
            Status: NEW
          Severity: Minor
          Priority: Low
         Component: Extras
        AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
        ReportedBy: bugzilla@xxxxxxxxxxx


Created attachment 7644
  --> https://bugs.wireshark.org/bugzilla/attachment.cgi?id=7644
capture example

Build Information:
Version 1.6.1 (SVN Rev 38096 from /trunk-1.6)

Compiled (64-bit) with GTK+ 2.22.1, with GLib 2.26.1, with WinPcap (version
unknown), with libz 1.2.5, without POSIX capabilities, without libpcre, without
SMI, with c-ares 1.7.1, with Lua 5.1, without Python, with GnuTLS 2.10.3, with
Gcrypt 1.4.6, without Kerberos, with GeoIP, with PortAudio V19-devel (built Jul
18 2011), with AirPcap.

Running on 64-bit Windows 7 Service Pack 1, build 7601, 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 21022
--
Wireshark is telling me that the AMS packet is malformed for the Read Device
Info Request and for the Read State Request.
(plugins\ethercat\packet-ams.c)

But according to the specification it is correct: (and it works)
http://infosys.beckhoff.com/content/1033/tcadsamsspec/html/tcadsamsspec_adscmd_readdeviceinfo.htm?id=10649

http://infosys.beckhoff.com/content/1033/tcadsamsspec/html/tcadsamsspec_adscmd_readstate.htm?id=10652

I attached an example

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