senf/Packets/80211Bundle/RadiotapPacket.cc

   1 // $Id$
   2 //
   3 // Copyright (C) 2008
   4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
   5 // Competence Center NETwork research (NET), St. Augustin, GERMANY
   6 //     Christian Niephaus <cni@berlios.de>
   7 //
   8 // This program is free software; you can redistribute it and/or modify
   9 // it under the terms of the GNU General Public License as published by
  10 // the Free Software Foundation; either version 2 of the License, or
  11 // (at your option) any later version.
  12 //
  13 // This program is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License
  19 // along with this program; if not, write to the
  20 // Free Software Foundation, Inc.,
  21 // 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  22
  23 // Definition of RadiotapPacket non-inline non-template functions
  24
  25 #include "RadiotapPacket.hh"
  26 //#include "RadiotapPacket.ih"
  27
  28 // Custom includes
  29 #include "WLANPacket.hh"
  30 #include <boost/io/ios_state.hpp>
  31
  32 #define prefix_
  33 ///////////////////////////////cc.p//////////////////////////////////////
  34
  35 namespace {
  36     #define DUMP_OPTIONAL_FIELD(name, sign, desc)           \
  37         if (p->has_##name())                                \
  38             os << senf::fieldName(desc) << sign( p->name()) \
  39                << std::endl;
  40 }
  41
  42 prefix_ void senf::RadiotapPacketType::dump(packet p, std::ostream &os)
  43 {
  44     boost::io::ios_all_saver ias(os);
  45     os << "Radiotap:\n"
  46        << senf::fieldName("version") << unsigned( p->version()) << "\n"
  47        << senf::fieldName("length")  << unsigned( p->length()) << "\n";
  48     // TODO: flags, channelOptions
  49     DUMP_OPTIONAL_FIELD( tsft,              unsigned, "MAC timestamp"        );
  50     DUMP_OPTIONAL_FIELD( rate,              unsigned, "rate"                 );
  51     DUMP_OPTIONAL_FIELD( fhss,              unsigned, "FHSS"                 );
  52     DUMP_OPTIONAL_FIELD( dbmAntennaSignal,  signed,   "antenna signal (dBm)" );
  53     DUMP_OPTIONAL_FIELD( dbmAntennaNoise,   signed,   "antenna noise (dBm)"  );
  54     DUMP_OPTIONAL_FIELD( lockQuality,       unsigned, "lock quality"         );
  55     DUMP_OPTIONAL_FIELD( txAttenuation,     unsigned, "tx attenuation"       );
  56     DUMP_OPTIONAL_FIELD( dbTxAttenuation,   unsigned, "tx attenuation (dB)"  );
  57     DUMP_OPTIONAL_FIELD( dbmTxAttenuation,  signed,   "tx attenuation (dBm)" );
  58     DUMP_OPTIONAL_FIELD( antenna,           unsigned, "antenna"              );
  59     DUMP_OPTIONAL_FIELD( dbAntennaSignal,   unsigned, "antenna signal (dB)"  );
  60     DUMP_OPTIONAL_FIELD( dbAntennaNoise,    unsigned, "antenna noise (dB)"   );
  61     if (p->has_headerFcs())
  62         os << senf::fieldName("FCS")     << unsigned( p->fcs()) << "\n";
  63 }
  64
  65 prefix_ void senf::RadiotapPacketType::finalize(packet p)
  66 {
  67     p->length() << p->calculateSize();
  68 }
  69
  70 prefix_ senf::PacketInterpreterBase::factory_t senf::RadiotapPacketType::nextPacketType(packet p)
  71 {
  72     static factory_t frameTypeFactory[] = { WLANPacket_MgtFrame::factory(),
  73                                             WLANPacket_CtrlFrame::factory(),
  74                                             WLANPacket_DataFrame::factory(),
  75                                             no_factory() };
  76     return frameTypeFactory[p->frameType()];
  77 }
  78
  79 prefix_ senf::RadiotapPacketType::optional_range
  80 senf::RadiotapPacketType::nextPacketRange(packet p)
  81 {
  82     size_type h (senf::bytes(p.parser()));
  83     size_type t (p->flagsPresent() && p->flags().fcsAtEnd() ? 4 : 0);
  84     return p.size() < h+t
  85         ? no_range()
  86         : optional_range( range(p.data().begin() + h, p.data().end() - t) );
  87 }
  88
  89 ///////////////////////////////cc.e////////////////////////////////////////
  90 #undef prefix_
  91
  92 \f
  93 // Local Variables:
  94 // mode: c++
  95 // fill-column: 100
  96 // c-file-style: "senf"
  97 // indent-tabs-mode: nil
  98 // ispell-local-dictionary: "american"
  99 // compile-command: "scons -u test"
 100 // comment-column: 40
 101 // End: