Wireshark-bugs: [Wireshark-bugs] [Bug 6126] New: 1588-2008 does not decode tlvType in Signaling
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Fri, 15 Jul 2011 03:16:23 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6126

           Summary: 1588-2008 does not decode tlvType in Signaling Message
           Product: Wireshark
           Version: 1.6.0
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Minor
          Priority: Low
         Component: Wireshark
        AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
        ReportedBy: alex.garcia.b@xxxxxxxxx


Created an attachment (id=6661)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=6661)
1588 startup trace

Build Information:
Paste the COMPLETE build information from "Help->About Wireshark", "wireshark
-v", or "tshark -v".
--

Hi there,

Wireshark does not seem to decode tlvType at the tail of Signalling Message
messages. See 1588-2008 16.1.4.1 for reference.

I enclose a trace an the right decoding for those sub-fields. 
10.222.222.22 is master
10.71.3.3 is slave

Sample 1
--------
Line 103 - Signalling message
>From tlvType (last field decoded) and onwards...
Raw string: ...04 00 06 B0 01 00 00 01 2C

00 04     tlvType = Request Unicast Transmission
00 06     lengthField = 6
B0     messageType = 0 = Announce (Note: Unicast requested for Sync messages,
see 13.3.2.2)
01    reserved
00 00     logInterMessagePeriod = 2^0 = 1 second
01 2C    durationField = 12C'h= 300 seconds


Sample 2
--------
Line 105 - Signalling message

>From tlvType (last field decoded) and onwards...
Raw string: ...00 04 00 06 00 FA 00 00 01 2C

1588-2008 16.1.4.1

00 04     tlvType = Request Unicast Transmission
00 06     lengthField = 6
00     messageType = 0 = Sync (Note: Unicast requested for Sync messages, see
13.3.2.2)
FA    reserved
00 00     logInterMessagePeriod = 2^0 = 1 second
01 2C    durationField = 12C'h= 300 seconds


Any doubt, don´t hesitate in asking.
Alex

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