dot11_beacon.h

/*
 * 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 <tins/config.h>

#if !defined(TINS_DOT11_DOT11_BEACON_H) && defined(TINS_HAVE_DOT11)
#define TINS_DOT11_DOT11_BEACON_H

#include <tins/dot11/dot11_mgmt.h>
#include <tins/macros.h>

namespace Tins {

class TINS_API Dot11Beacon : public Dot11ManagementFrame {
public:
    static const PDU::PDUType pdu_flag = PDU::DOT11_BEACON;

    Dot11Beacon(const address_type& dst_hw_addr = address_type(), 
                const address_type& src_hw_addr = address_type());

    Dot11Beacon(const uint8_t* buffer, uint32_t total_sz);

    uint64_t timestamp() const {
        return Endian::le_to_host(body_.timestamp);
    }

    uint16_t interval() const {
        return Endian::le_to_host(body_.interval);
    }

    const capability_information& capabilities() const {
        return body_.capability;
    }

    capability_information& capabilities() {
        return body_.capability;
    }

    void timestamp(uint64_t new_timestamp);

    void interval(uint16_t new_interval);

    uint32_t header_size() const;

    bool matches_flag(PDUType flag) const {
       return flag == pdu_flag || Dot11ManagementFrame::matches_flag(flag);
    }

    Dot11Beacon* clone() const {
        return new Dot11Beacon(*this);
    }

    PDUType pdu_type() const {
        return pdu_flag;
    }
private:
    TINS_BEGIN_PACK
    struct dot11_beacon_body {
        uint64_t timestamp;
        uint16_t interval;
        capability_information capability;
    } TINS_END_PACK;

    void write_fixed_parameters(Memory::OutputMemoryStream& stream);

    dot11_beacon_body body_;
};

} // namespace Tins

#endif // TINS_DOT11_DOT11_BEACON_H