Howdy,
The current packet-netflow.c dissector has a big "switch (pen_type) {...}"
block in dissect_v9_v10_pdu_data(), which looks up specific known netflow/ipfix
fields as it walks netflow v9/10 PDUs.
Unfortunately, it's a bit of a hack as pen_type is a guint64 and a switch
statement will silently cast it to an int. I say "unfortunately", because I
discovered to my chagrin that it's a *signed* int, so any case statement can't
use a constant greater than 0x7fffffff, which given how the current code works,
means one can't have a Private Enterprise Number greater than 0x7fff and use it
to define a known field in this code. As it turns out, my Enterprise number is
higher than that. (Cace Technology's is just under it, which is why the current
code works for Cace's netflow fields)
So the question is: should I submit a bug with another hack to patch it for my
specific cases, or is there work going on by someone already to re-do
packet-netflow.c? (it could do with a re-write, starting with pulling v9/v10
out of it and into a separate file)
-hadriel
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