From: wireshark-dev-boun...@wireshark.org [mailto:wireshark-dev-boun...@wireshark.org] On Behalf Of mman...@netscape.net Sent: den 8 oktober 2013 15:23 To: wireshark-dev@wireshark.org Subject: [Wireshark-dev] fuzzing UDP/TCP dissectors with no port assignment
>Anders brought up a question in bug 9241 that I've always been curious about >(and I think the discussion is better served on -dev than the bug). We have >many >TCP/UDP dissectors that don't have an IANA assigned port number or are >not setup as heuristic dissectors. In these cases their port number = 0 and >it's up to >a user preference to set it to a value corresponding to their >trace. If that step is required to invoke the dissector, how are the fuzzbots >handling it? Are all of >these dissectors just not getting fuzzed? Yes I'm pretty sure that's the case, and I also think we have the case of user DLT etc. The best would be if it was possible to add pseudo information to the trace files setting the needed preferences. It would be possible to have tags in the SHB of pcap-ng files but I'm not sure we want to go that route. A new Wireshark specific block would be much better. Another possibility would be to have a template file with the file name and the required tshark parameters or indicating a profile to be used together with the file in question but it would require a bit of work to set up I suppose. Regards Anders
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