/usr/include/tins/handshake_capturer.h is in libtins-dev 1.1-1.
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) 2012, 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.
*
*/
#ifndef TINS_HANDSHAKE_CAPTURER_H
#define TINS_HANDSHAKE_CAPTURER_H
#include <vector>
#include <map>
#include <utility>
#include "hw_address.h"
#include "eapol.h"
// .h
namespace Tins {
/**
* \brief Generic EAPOL handshake.
*
* Stores both the client and supplicant addresses, as well as
* all of the EAPOL packets used during the handshake.
*/
template<typename T>
class EAPOLHandshake {
public:
typedef std::vector<T> container_type;
typedef HWAddress<6> address_type;
/**
* \brief Default constructor.
*/
EAPOLHandshake() { }
/**
* Constructs an EAPOLHandshake object.
*
* \param client_address The client address.
* \param supplicant_address The supplicant address.
* \param cont The container that holds the EAPOL packets used
* in the handshake.
*/
EAPOLHandshake(const address_type &client_address,
const address_type &supplicant_address, const container_type &cont)
: cl_address_(client_address), suppl_address_(supplicant_address),
handshake_(cont)
{
}
/**
* \return const address_type&
*/
const address_type &client_address() const {
return cl_address_;
}
/**
* \return const address_type&
*/
const address_type &supplicant_address() const {
return suppl_address_;
}
/**
* \return const container_type&
*/
const container_type &handshake() const {
return handshake_;
}
private:
address_type cl_address_, suppl_address_;
container_type handshake_;
};
/**
* The type used to store RSN handshakes.
*/
typedef EAPOLHandshake<RSNEAPOL> RSNHandshake;
/**
* Captures 802.1X RSN handshakes.
*/
class RSNHandshakeCapturer {
public:
/**
* The type of handshakes that will be captured.
*/
typedef RSNHandshake handshake_type;
/**
* The type in which all of the captured handshakes
* will be stored.
*/
typedef std::vector<handshake_type> handshakes_type;
/**
* \brief Processes a packet.
*
* This will fetch the RSNEAPOL layer, if any, and store
* it in an intermediate storage. When a handshake is
* completed, it will be stored separately.
*
* \sa RSNHandshakeCapturer::handshakes
*/
bool process_packet(const PDU &pdu);
/**
* \brief Retrieves the completed handshakes.
*
* This will return the handshakes that have been completed
* so far. A handshake is completed when the 4-way handshake
* is captured.
*
* \sa RSNHandshakeCapturer::clear_handshakes
*/
const handshakes_type &handshakes() const {
return completed_handshakes_;
}
/**
* \brief Clears the completed handshakes.
*
* Since completed handshakes are stored in a std::vector,
* it is advisable to remove all of them once they have been
* processed.
*/
void clear_handshakes() {
completed_handshakes_.clear();
}
private:
typedef handshake_type::address_type address_type;
typedef handshake_type::container_type eapol_list;
typedef std::map<std::pair<address_type, address_type>, eapol_list> handshake_map;
bool do_insert(const handshake_map::key_type &key, const RSNEAPOL *eapol,
size_t expected);
handshake_map handshakes_;
handshakes_type completed_handshakes_;
};
}
#endif // TINS_HANDSHAKE_CAPTURER_H
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