PrintWifi and 802.11ac

[bjooris]

Hi all,

I'am trying to use click on top of an ath10k compliant card in monitor mode.
Wireshark is able to decode (radiotap header) my incoming frames transmitted from a station to an AP (two other devices).
My click script looks like this
FromDevice(wlan1, PROMISC 1) -> RadiotapDecap() -> PrintWifi() -> Discard();

Some parts look ok like tods, data,... but some values like rate, rssi,.. are not being decoded.

2008 | 0Mb + 0/ 0 | data tods
2008 | 0Mb + 0/ 0 | data tods
....

radiotap.h and RadiotapDecap.cc seems to be changed recently.

Can you suggest how I can try to fix this?

Thanks a lot in advance,

Bart

[rommon]

Hi,

I guess it is the same problem as I described in #180 . Could you if it is possible append a wireshark trace as the interface is in monitor mode?

BR,
rommon

[bjooris]

Hi Rommon,

I don't think the pcap file in attachment has the " multiple it_present
fields" as you mentioned in #180
#180.
But I would like to try your patch. If it doesn't fix our issue I'm sure
it will be good starting point.

Thanks!

Bart

On 03/14/2015 05:43 PM, Rom wrote:

Hi,

I guess it is the same problem as I described in #180
#180 . Could you if it is
possible append a wireshark trace as the interface is in monitor mode?

BR,
rommon

—
Reply to this email directly or view it on GitHub
#172 (comment).

Bart Jooris
Department of Information Technology
Internet Based Communication Networks and Services (IBCN)
Ghent University - iMinds
Gaston Crommenlaan 8 (Bus 201), B-9050 Gent, Belgium
E-mail: bart.jooris@intec.UGent.be
M: +32 474 59 53 42
Tel. +32 9 33 14900
Fax +32 9 33 14899

[rommon]

please let me know if patch #183 is working for you

BR,
Rommon

[bjooris]

Hi Rommon,

after applying the patch, RadiotapDecap fails to compile.
Would it be correct to append your calculated additional_it_present_flags to the params of rt_check_header on line 133 (after your patch)?

Thanks,

Bart

[rommon]

yes, you are right. I must have forgotten this parameter. I need to fix that in my pullrequest, not sure how to do that actually.

[rommon]

ok, added it to the pull request.