RadiotapPacket.cci

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//
// Copyright (c) 2020 Fraunhofer Institute for Applied Information Technology (FIT)
//                    Network Research Group (NET)
//                    Schloss Birlinghoven, 53754 Sankt Augustin, GERMANY
//                    Contact: support@wiback.org
//
// This file is part of the SENF code tree.
// It is licensed under the 3-clause BSD License (aka New BSD License).
// See LICENSE.txt in the top level directory for details or visit
// https://opensource.org/licenses/BSD-3-Clause
//


/** \file
    \brief RadiotapPacket inline non-template implementation */

//#include "RadiotapPacket.ih"

// Custom includes

#define prefix_ inline
//-/////////////////////////////////////////////////////////////////////////////////////////////////

//-/////////////////////////////////////////////////////////////////////////////////////////////////
// senf::RadiotapPacketParser

prefix_ senf::RadiotapPacketParser::RadiotapPacketParser(data_iterator i, state_type s)
    : RadiotapPacket_HeaderParser(i,s)
{
    unsigned bytes = 4;
    if (SENF_LIKELY(presentFlags() & EXTENDED_BITMASK_FLAG)) {
       bytes += 4;
       if (SENF_LIKELY(presentFlags_ext1() & EXTENDED_BITMASK_FLAG)) {
            bytes += 4;
        }
    }
    OffsetTable & table (offsetMap_[boost::hash_range(
           data().begin() + presentFlags_offset,
           data().begin() + presentFlags_offset + bytes)]);
    if (SENF_UNLIKELY(! table[MAX_INDEX+1]))
        parseOffsetTable(&(*data().begin()), data().size(), table);
    currentTable_ = &table;
}

prefix_ senf::RadiotapPacketParser::size_type senf::RadiotapPacketParser::bytes()
    const
{
    return length();
}

prefix_ senf::UInt32Parser senf::RadiotapPacketParser::fcs()
{
    validate(RadiotapPacket_HeaderParser::fixed_bytes+4);
    return parse<senf::UInt32Parser>(data().end()-4);
}

prefix_ bool senf::RadiotapPacketParser::has_fcs()
{
    return flagsPresent() && flags().fcsAtEnd();
}

prefix_ unsigned senf::RadiotapPacketParser::frameType()
{
    return parse<RadiotapPacket_FrameTypeParser>(length()).frameType();
}

//-/////////////////////////////////////////////////////////////////////////////////////////////////
// private members

prefix_ void senf::RadiotapPacketParser::initField(unsigned index)
{
    updatePresentFlags( presentFlags() | (1<<index) );
}

prefix_ void senf::RadiotapPacketParser::disableField(unsigned index)
{
    updatePresentFlags( presentFlags() & ~(1<<index) );
}

prefix_ senf::RadiotapPacketParser::size_type senf::RadiotapPacketParser::calculateSize()
    const
{
    return currentTable()[MAX_INDEX+1];
}

prefix_ senf::RadiotapPacketParser::OffsetTable const &
senf::RadiotapPacketParser::currentTable()
    const
{
    return *currentTable_;
}

//-/////////////////////////////////////////////////////////////////////////////////////////////////
#undef prefix_


// Local Variables:
// mode: c++
// fill-column: 100
// comment-column: 40
// c-file-style: "senf"
// indent-tabs-mode: nil
// ispell-local-dictionary: "american"
// compile-command: "scons -u test"
// End: