Wireshark · Wireshark-users: Re: [Wireshark-users] t-shark add column output: radiotap.datarate, how to?

[Jaap Keuter <jaap.keuter@xxxxxxxxx>]

Hi,

Unfortunately not. The code that shows the value in Wireshark is

                proto_tree_add_uint_format(radiotap_tree, hf_radiotap_datarate,
                        tvb, offset, 1, tvb_get_guint8(tvb, offset),
                        "Data Rate: %d.%d Mb/s", rate / 2, rate & 1 ? 5 : 0);

What this says is that the raw packet value is set as value for this field, 
while the presentation is a digested version of it. You get to see the raw value 
as output.

But it's your lucky day. There is already a column with the correct value: %x

Thanx,
Jaap

George Nychis wrote:
> Hi all,
>
> I was digging through the wireshark mailing list archives and found this 
> post:
> http://www.wireshark.org/lists/wireshark-users/200805/msg00147.html
>
> Sake mentions:
> "Added to that that it's now possible to add any field to the -Ttext 
> output by using '"<title>", "%Cus:<fieldname>"' this gives you about all 
> the flexibility you want."
>
> I would like to output radiotap.datarate, just as Wireshark would output 
> it, so I put:
> '"Rate", "%Cus:radiotap.datarate"'
>
> ... however it outputs 2*radiotap.datarate, which is actually how I 
> think it is stored in the radiotap header.  But, is there any way to get 
> it to output it like Wireshark does, as radiotap.datarate/2 as a float?
>
> Thanks!
> George
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