Wireshark-bugs: [Wireshark-bugs] [Bug 4283] New: add vendor extension support for 802.11 radiota
Date: Mon, 30 Nov 2009 18:29:58 -0800 (PST)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4283

           Summary: add vendor extension support for 802.11 radiotap
                    header
           Product: Wireshark
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Major
          Priority: High
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: swzhao@xxxxxxxxx


Joshua Zhao <swzhao@xxxxxxxxx> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Attachment #4009|                            |review_for_checkin?
               Flag|                            |

Created an attachment (id=4009)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=4009)
patch to handle vendor extension part

Build Information:
Paste the COMPLETE build information from "Help->About Wireshark", "wireshark
-v", or "tshark -v".
--
Radiotap header had defined an extension bit to allow further enhancements, but
the current dissector cannot handle more than one it_present word.
Vendor extension had been proposed in the following link
http://www.radiotap.org/Discussion/Vendor-Extensions
as bit 30. 
This patch is to allow vendors use this bit and add one more it_present word to
define their own fields. This is a very simple patch to add a place holder for
that (but not try to interpret) so that a packet with vendor's extended
radiotap header doesn't break the dissector. Further enhancement can be done to
allow multiple vendor extensions.

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