Wireshark-bugs: [Wireshark-bugs] [Bug 5922] Update AT commands dissector heuristics to deal with
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5922
--- Comment #9 from Tyson Key <tyson.key@xxxxxxxxx> 2011-05-16 08:30:24 PDT ---
(In reply to comment #7)
> (In reply to comment #6)
> > I'm also attaching the trace file that I extracted those packets from - just in
> > case there's any other interesting anomalies/features to investigate in the
> > future.
>
> Thanks for posting the capture file. It does show malformed packets in it as a
> result of the patch committed for bug 4819, so it looks like we'll have to
> revisit that bug and come up with a better solution.
On another note, that makes perfect sense to me - since most of the phones that
I've (a Nokia, a Sony Ericsson, and the Motorola) tested have a habit of
spewing CDC packets with single-byte payloads.
We could probably tighten the heuristics somehow to ignore single-byte
payloads...
You'll probably also notice a similar issue with the Nokia device-originated
traces that I've submitted - although the heuristics (matching on a "media
type" byte of 0x1B) used by the external ISI dissector plug-in that I use masks
the issue somewhat.
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