Informing user of incomplete dissection

[Mike Morrin <morrinmike () gmail com>]

I have a dissector which does not yet dissect all of the possible 
information elements of a protocol.

What should the dissector do when it recognises that an IE cannot be 
handled?

 * Ignoring the un-dissected octets leaves the user with a false sense
   of believing the dissection was complete
 * DISSECTOR_ASSERT is much too invasive.
 * Expert info, would seem to be the best option, but I recall that it
   was intended to be used for providing information about the captured
   packets, rather than about dissector deficiencies.

What is the generally accepted solution?


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