On Sun, Nov 07, 2010 at 10:46:47AM -0500, Hadriel Kaplan wrote:
> 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)
Have you tried adding 'U' to your #define? i.e.
instead of just:
#define VENDOR_FOO 0xdead
do:
#define VENDOR_FOO 0xdeadU
or even better:
#define VENDOR_FOO G_GUINT64_CONSTANT(0xdead) /* which should result in
0xdeadLLU */
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