Wireshark-bugs: [Wireshark-bugs] [Bug 7965] New: [DHCPv6] Length for OPTION_RECONF_ACCEPT (20) h
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Fri, 9 Nov 2012 05:22:34 -0800 (PST)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7965

           Summary: [DHCPv6] Length for OPTION_RECONF_ACCEPT (20) has to
                    be 0
           Product: Wireshark
           Version: 1.9.x (Experimental)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Enhancement
          Priority: Low
         Component: Wireshark
        AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
        ReportedBy: jerome.laforge@xxxxxxxxx


Created attachment 9506
  --> https://bugs.wireshark.org/bugzilla/attachment.cgi?id=9506
patch

Build Information:
Paste the COMPLETE build information from "Help->About Wireshark", "wireshark
-v", or "tshark -v".
--
Please find this patch that controls the length of OPTION_RECONF_ACCEPT (20).
Like defined by RFC3315, its length has to be 0.

Excerpt RFC3315:

22.20. Reconfigure Accept Option

   A client uses the Reconfigure Accept option to announce to the server
   whether the client is willing to accept Reconfigure messages, and a
   server uses this option to tell the client whether or not to accept
   Reconfigure messages.  The default behavior, in the absence of this
   option, means unwillingness to accept Reconfigure messages, or
   instruction not to accept Reconfigure messages, for the client and
   server messages, respectively.  The following figure gives the format
   of the Reconfigure Accept option:

     0                   1                   2                   3
     0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
    |     OPTION_RECONF_ACCEPT      |               0               |
    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

      option-code   OPTION_RECONF_ACCEPT (20).

      option-len    0.

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