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libtins/include/radiotap.h
2011-08-21 21:09:19 -03:00

132 lines
3.8 KiB
C++

/*
* libtins is a net packet wrapper library for crafting and
* interpreting sniffed packets.
*
* Copyright (C) 2011 Nasel
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __RADIOTAP_H
#define __RADIOTAP_H
#include <stdexcept>
#include "pdu.h"
namespace Tins {
/**
* \brief Class that represents the IEEE 802.11 radio tap header.
*/
class RadioTap : public PDU {
public:
/**
* Creates an instance of RadioTap.
* \param iface The name of the interface in which to send this PDU.
*/
RadioTap(const std::string &iface) throw (std::runtime_error);
/**
* Creates an instance of RadioTap.
* \param iface_index The index of the interface in which to send this PDU.
*/
RadioTap(uint32_t iface_index);
/* Setters */
/**
* \sa PDU::send()
*/
bool send(PacketSender* sender);
/**
* \brief Setter for the version field.
* \param new_version The new version.
*/
void version(uint8_t new_version);
/**
* \brief Setter for the padding field.
* \param new_padding The new padding.
*/
void padding(uint8_t new_padding);
/**
* \brief Setter for the length field.
* \param new_length The new length.
*/
void length(uint8_t new_length);
/**
* \brief Setter for the present field.
* \param new_present The new present.
*/
void present(uint8_t new_present);
/* Getters */
/**
* \brief Getter for the version field.
* \return The version field.
*/
inline uint8_t version() const { return _radio.it_version; }
/**
* \brief Getter for the padding field.
* \return The padding field.
*/
inline uint8_t padding() const { return _radio.it_pad; }
/**
* \brief Getter for the length field.
* \return The length field.
*/
inline uint8_t length() const { return _radio.it_len; }
/**
* \brief Getter for the present field.
* \return The present field.
*/
inline uint8_t present() const { return _radio.it_present; }
/**
* \brief Returns the 802.11 frame's header length.
*
* \return An uint32_t with the header's size.
* \sa PDU::header_size()
*/
uint32_t header_size() const;
/**
* \brief Getter for the PDU's type.
* \sa PDU::pdu_type
*/
PDUType pdu_type() const { return PDU::RADIOTAP; }
private:
struct radiotap_hdr {
u_int8_t it_version;
u_int8_t it_pad;
u_int16_t it_len;
u_int32_t it_present;
} __attribute__((__packed__));
void write_serialization(uint8_t *buffer, uint32_t total_sz, const PDU *parent);
radiotap_hdr _radio;
uint32_t _iface_index;
};
};
#endif