Wireshark-bugs: [Wireshark-bugs] [Bug 4791] New: [gsm-ipaccess] Fix the packet-gsm_ipa.c for UDP
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4791

           Summary: [gsm-ipaccess] Fix the packet-gsm_ipa.c for UDP
                    packets
           Product: Wireshark
           Version: SVN
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: Major
          Priority: Low
         Component: Wireshark
        AssignedTo: [email protected]
        ReportedBy: [email protected]


Created an attachment (id=4689)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=4689)
Attempt to detect IPA header over UDP and handle it correctly

Build Information:
This is from the latest svn version.
--
The current implementation assumes that the IPA protocol header is three byte.
This is true for TCP but not for packets sent over UDP. The difference can be
seen in OpenBSC's ipaccess-find utility sending a broadcast packet with a IPA
payload.

The proposed patch is based on the approach of the IPA dissectors and works by
checking if the specified length + 1 is the length of the payload. This appears
to work.

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