mirror of
https://github.com/mfontanini/libtins
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83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
/*
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* Copyright (c) 2012, Matias Fontanini
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "dot11/dot11_beacon.h"
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#ifdef HAVE_DOT11
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#include <cstring>
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#include <cassert>
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namespace Tins {
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/* Dot11Beacon */
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Dot11Beacon::Dot11Beacon(const address_type &dst_hw_addr,
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const address_type &src_hw_addr)
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: Dot11ManagementFrame(dst_hw_addr, src_hw_addr)
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{
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subtype(Dot11::BEACON);
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std::memset(&_body, 0, sizeof(_body));
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}
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Dot11Beacon::Dot11Beacon(const uint8_t *buffer, uint32_t total_sz)
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: Dot11ManagementFrame(buffer, total_sz)
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{
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uint32_t sz = management_frame_size();
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buffer += sz;
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total_sz -= sz;
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if(total_sz < sizeof(_body))
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throw malformed_packet();
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std::memcpy(&_body, buffer, sizeof(_body));
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buffer += sizeof(_body);
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total_sz -= sizeof(_body);
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parse_tagged_parameters(buffer, total_sz);
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}
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void Dot11Beacon::timestamp(uint64_t new_timestamp) {
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this->_body.timestamp = Endian::host_to_le(new_timestamp);
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}
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void Dot11Beacon::interval(uint16_t new_interval) {
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this->_body.interval = Endian::host_to_le(new_interval);
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}
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uint32_t Dot11Beacon::header_size() const {
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return Dot11ManagementFrame::header_size() + sizeof(_body);
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}
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uint32_t Dot11Beacon::write_fixed_parameters(uint8_t *buffer, uint32_t total_sz) {
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uint32_t sz = sizeof(_body);
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#ifdef TINS_DEBUG
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assert(sz <= total_sz);
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#endif
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std::memcpy(buffer, &this->_body, sz);
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return sz;
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}
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} // namespace Tins
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#endif // HAVE_DOT11
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