/usr/share/doc/libtins-dev/examples/wps_detect.cpp is in libtins-dev 3.4-2+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (c) 2016, Matias Fontanini
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <tins/tins.h>
#include <iostream>
#include <set>
#include <string>
using namespace Tins;
// BSSIDs which we've already seen
std::set<HWAddress<6>> addrs;
// This will be the content of the OUI field in the vendor specific
// tagged option if it's a WPS tag.
const HWAddress<3> expected_oui("00:50:F2");
bool handler(const PDU& pdu) {
const Dot11Beacon& beacon = pdu.rfind_pdu<Dot11Beacon>();
// Only process it once
if(addrs.insert(beacon.addr3()).second) {
// Iterate the tagged options
for(const auto& opt : beacon.options()) {
// Is this a vendor-specific tag?
if(opt.option() == Dot11::VENDOR_SPECIFIC) {
// Make sure there's enough size for the OUI + identifier
if(opt.data_size() >= 4) {
// Retrieve the OUI field
HWAddress<3> addr = opt.data_ptr();
// Are we interested in this OUI and is it a WPS tag?
if(addr == expected_oui && opt.data_ptr()[3] == 0x04) {
std::cout << "[+] Access point: " << beacon.ssid() << " uses WPS\n";
}
}
}
}
}
return true;
}
int main(int argc, char* argv[]) {
if(argc != 2) {
std::cout << "Usage: " <<* argv << " <DEVICE>\n";
return 1;
}
// Only sniff beacons
SnifferConfiguration config;
config.set_snap_len(2000);
config.set_promisc_mode(true);
config.set_filter("wlan type mgt subtype beacon");
Sniffer sniffer(argv[1], config);
sniffer.sniff_loop(handler);
}
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