[orbit-user] Radiotap header parsing

[Akash Baid]

Hi,
I am using the trace_oml2 application of OML2 for libpcap sniffing. I was
wondering if someone can help me out with understanding (parsing) the
received radiotap data. The schema and an example row entry from the
database is :

*oml_sender_id INTEGER, oml_seq INTEGER, oml_ts REAL, tsft INTEGER, rate
INTEGER, freq INTEGER, sig_strength_dBm INTEGER, noise_strength_dBm INTEGER,
sig_strength INTEGER, noise_strength INTEGER, attenuation INTEGER,
attenuation_dB INTEGER, power INTEGER, antenna INTEGER, sourceMAC INTEGER,
dstMAC INTEGER*
*
*
*"1"** **"16777216"** **"99.76406667032279"** **"-2113757635"** **
"369098752"** **"1812529152"** **"-1426063361"** **"-1627389953"** **
"201326592"** **"0"** **"0"** **"0"** **"0"** **"33554432"** **"1957724087"*
* **"1857060791"*

So I am trying to guess for example how the freq = 1812529152 corresponds to
channel 1 and so on. Also I am getting some negative numbers for oml_ts,
tsft; what is the significance of that? Would really help if someone can
point me to the appropriate documentation.

Thanks
Akash
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