search

kohler / click

The Click modular router: fast modular packet processing and analysis
Other
748 stars 321 forks source link

PrintWifi and 802.11ac #172

Open bjooris opened 9 years ago

bjooris commented 9 years ago

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 commented 9 years ago

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 commented 9 years ago

Hi Rommon,

I don't think the pcap file in attachment has the " multiple it_present fields" as you mentioned in #180 https://github.com/kohler/click/issues/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 https://github.com/kohler/click/issues/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 https://github.com/kohler/click/issues/172#issuecomment-80568952.

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 commented 9 years ago

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

BR, Rommon

bjooris commented 9 years ago

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 commented 9 years ago

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 commented 9 years ago

ok, added it to the pull request.