DefaultBundle/LlcSnapPacket.cc

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00001 // $Id: LlcSnapPacket.cc 1792 2011-06-09 15:49:59Z tho $
00002 //
00003 // Copyright (C) 2007
00004 // Fraunhofer (FOKUS)
00005 // Competence Center NETwork research (NET), St. Augustin, GERMANY
00006 //     Thorsten Horstmann <tho@berlios.de>
00007 //
00008 // This program is free software; you can redistribute it and/or modify
00009 // it under the terms of the GNU General Public License as published by
00010 // the Free Software Foundation; either version 2 of the License, or
00011 // (at your option) any later version.
00012 //
00013 // This program is distributed in the hope that it will be useful,
00014 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00015 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00016 // GNU General Public License for more details.
00017 //
00018 // You should have received a copy of the GNU General Public License
00019 // along with this program; if not, write to the
00020 // Free Software Foundation, Inc.,
00021 // 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
00022 
00026 #include "LlcSnapPacket.hh"
00027 //#include "LlcSnapPacket.ih"
00028 
00029 // Custom includes
00030 #include <iomanip>
00031 #include <boost/io/ios_state.hpp>
00032 
00033 #define prefix_
00034 //-/////////////////////////////////////////////////////////////////////////////////////////////////
00035 
00036 prefix_ void senf::LlcSnapPacketType::dump(packet p, std::ostream & os)
00037 {
00038     boost::io::ios_all_saver ias(os);
00039     os << "LLC/SNAP:\n"
00040        << std::hex << std::setfill('0') << std::right
00041        << "  LLC\n"
00042        << senf::fieldName("  dsap")                    << "0x" << unsigned(p->dsap()) << "\n"
00043        << senf::fieldName("  ssap")                    << "0x" << unsigned(p->ssap()) << "\n"
00044        << senf::fieldName("  control id")              << "0x" << unsigned(p->ctrl()) << "\n"
00045        << "  SNAP\n"
00046        << senf::fieldName("  protocol id")             << "0x" << std::setw(6) << unsigned(p->protocolId()) << "\n"
00047        << senf::fieldName("  type/length")             << "0x" << std::setw(4) << unsigned(p->type_length()) << "\n";
00048 }
00049 
00050 prefix_ senf::PacketInterpreterBase::factory_t senf::LlcSnapPacketType::nextPacketType(packet p)
00051 {
00052     if (p->type_length() >= 1536) {
00053         PacketRegistry<senf::EtherTypes>::Entry const * e (
00054             PacketRegistry<senf::EtherTypes>::lookup( p->type_length(), nothrow ));
00055         return e ? e->factory() : no_factory();
00056     }
00057     if (p->type_length() <= 1500)
00058         return EthernetPacket::factory();
00059     return no_factory();
00060 }
00061 
00062 prefix_ void senf::LlcSnapPacketType::finalize(packet p)
00063 {
00064     optional_key_t k (key(p.next(nothrow)));
00065     if (k)
00066         p->type_length() << k;
00067     else if (p.next().is<EthernetPacket>())
00068         p->type_length() << p.next().data().size();
00069 }
00070 
00071 
00072 //-/////////////////////////////////////////////////////////////////////////////////////////////////
00073 #undef prefix_
00074 
00075 
00076 // Local Variables:
00077 // mode: c++
00078 // fill-column: 100
00079 // c-file-style: "senf"
00080 // indent-tabs-mode: nil
00081 // ispell-local-dictionary: "american"
00082 // compile-command: "scons -u test"
00083 // comment-column: 40
00084 // End:
SENF Extensible Network Framework

DefaultBundle/LlcSnapPacket.cc
