Wireshark-bugs: [Wireshark-bugs] [Bug 3800] New: Getting Malformed RTCP Packet error while sending Payload specific RTCP feedback packet( as per RFC 4585)

From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Fri, 31 Jul 2009 23:09:44 -0700 (PDT)

https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=3800

           Summary: Getting Malformed RTCP Packet error while sending
                    Payload specific RTCP feedback packet( as per RFC 4585)
           Product: Wireshark
           Version: 1.0.0
          Platform: x86
        OS/Version: Windows XP
            Status: NEW
          Severity: Major
          Priority: Low
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: nitin1.jain@xxxxxxxxxxx


Created an attachment (id=3450)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=3450)
Dump for Malformed RTCP Payload specific feedback message

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

I am trying to send Payload specific RTCP feedback packet according to RFC 4585
and getting the Malformed RTCP packet error even though packet is properly
formed .From wireshark dump it seems that wireshark could able to dissect the
RTP Headers properly but not the FCI field.

>From the rtcp packet dissector code i.e packet-rtcp_c.txt file i think that in
function " dissect_rtcp_psfb() "  offset is not updated correctly for "Feedback
Control Information". 


I have attached the capture file.Please filter the rtcp packet and in Receiver
report we can see the Malformed rtcp packet


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