Send 802.11 frame

[Brostoni]

Hi

I am trying to send 802.11 frames, but I couldn’t manage to see them in other computers (using wireshark).

The following code is based in some of examples.

Both computers have Debian installed.

#include <unistd.h>

#include <cstdlib>

#include <iostream>

#include <string>

#include <tins/tins.h>

using namespace std;

using namespace Tins;

int main(int argc, char** argv) {

        //from http://libtins.github.io/tutorial/802.11/#management-frames

    Dot11Beacon beacon;

    beacon.addr1(Dot11::BROADCAST);

    beacon.addr2("00:01:02:03:04:05");

    beacon.addr3(beacon.addr2());

    beacon.ssid("libtins");

    beacon.ds_parameter_set(8);

    beacon.supported_rates({1.0f, 5.5f, 11.0f});

    beacon.rsn_information(RSNInformation::wpa2_psk());

    

    PacketSender sender;

    sender.send(beacon, "wlan0");

   

    return 0;

}

Thank you in advance.

[Matias Fontanini]

Sending 802.11 frames requires a bit of information about the environment. First of all, is wlan0 in monitor mode? If so, does your interface use RadioTap encapsulation?  Because if it does, then you'll have to add a RadioTap header.

[Matias Fontanini]

Great! It was very likely that the problem was one of those two.

On Friday, October 10, 2014 5:06:15 PM UTC-3, Brostoni wrote:

I added the radioTap encapsulation and it worked.

 

Thank for your (very) fast answer and great library.

    Dot11Beacon beacon;

   beacon.addr1(Dot11::BROADCAST);

   beacon.addr2("64:66:b3:1a:db:29");

   beacon.addr3(beacon.addr2());

   beacon.ssid("test");

   beacon.ds_parameter_set(8);

   beacon.supported_rates({1.0f, 5.5f, 11.0f});

   beacon.rsn_information(RSNInformation::wpa2_psk());

   RadioTap radio = RadioTap() / beacon;

   PacketSender sender;

   sender.send( radio, "wlan0");

[Nir Rattner]

Hi, I am facing the same issue using a MacBook Pro. Even after including the RadioTap header, no packets appear to be sent according to WireShark on another machine. I recognize the OS and drivers are different, but is there something I'm doing wrong that I can fix?

[Matias Fontanini]

Is the interface you are trying to use in monitor mode?

[Nir Rattner]

Originally I tried without monitor mode. Now I tried again both using and not using monitor mode, and neither worked.