--- /dev/null
+// $Id$
+//
+// Copyright (C) 2008
+// Fraunhofer Institute for Open Communication Systems (FOKUS)
+// Competence Center NETwork research (NET), St. Augustin, GERMANY
+// Christian Niephaus <cni@berlios.de>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the
+// Free Software Foundation, Inc.,
+// 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+/** \file
+ \brief 802.11 WLANPacket public header */
+
+#ifndef HH_SENF_Packets_80211Bundle_WLANPacket_
+#define HH_SENF_Packets_80211Bundle_WLANPacket_ 1
+
+#include "../../Packets/Packets.hh"
+#include "../DefaultBundle/EthernetPacket.hh"
+#include "../DefaultBundle/LlcSnapPacket.hh"
+
+namespace senf
+{
+
+ /** \brief 802.11 Frame parser
+ (see IEEE 802.11-2007 standard - Chapter 7 Frame formats)
+ <b>Re-ordering of bits due to host byte order</b>
+
+ Frame base class.
+ */
+ struct WLANPacketParser : public senf::PacketParserBase
+ {
+ # include SENF_PARSER()
+
+ /*
+ * Frame control field
+ * re-ordering of fields due to the byte order
+ */
+ SENF_PARSER_BITFIELD_RO ( subtype, 4, unsigned );
+ SENF_PARSER_BITFIELD_RO ( type, 2, unsigned );
+ SENF_PARSER_BITFIELD ( version, 2, unsigned );
+ SENF_PARSER_BITFIELD ( order, 1, bool );
+ SENF_PARSER_BITFIELD ( protectedFrame, 1, bool );
+ SENF_PARSER_BITFIELD ( moreData, 1, bool );
+ SENF_PARSER_BITFIELD ( pwrMgt, 1, bool );
+ SENF_PARSER_BITFIELD ( retry, 1, bool );
+ SENF_PARSER_BITFIELD ( moreFrag, 1, bool );
+ SENF_PARSER_BITFIELD ( fromDS, 1, bool );
+ SENF_PARSER_BITFIELD ( toDS, 1, bool );
+
+ SENF_PARSER_FIELD ( duration, UInt16LSBParser );
+
+ SENF_PARSER_FINALIZE(WLANPacketParser);
+ };
+
+ ///////////////////////////////////////////////////////////////////////////
+
+ /** \brief Management frame parser
+ <b>Re-ordering of bits due to LSB byte order</b>
+ */
+ struct WLANPacket_MgtFrameParser : public WLANPacketParser
+ {
+ # include SENF_PARSER()
+
+ SENF_PARSER_INHERIT(WLANPacketParser);
+
+ SENF_PARSER_FIELD ( destinationAddress, MACAddressParser );
+ SENF_PARSER_FIELD ( sourceAddress, MACAddressParser );
+ SENF_PARSER_FIELD ( bssid, MACAddressParser );
+
+ //workaround since bitfield LSB parsers are not available
+ SENF_PARSER_PRIVATE_BITFIELD ( seqNumber_1, 4, unsigned );
+ SENF_PARSER_BITFIELD ( fragmentNumber, 4, unsigned );
+ SENF_PARSER_PRIVATE_FIELD ( seqNumber_2, UInt8Parser );
+
+ SENF_PARSER_INIT() { type_() = 0; }
+
+ SENF_PARSER_FINALIZE(WLANPacket_MgtFrameParser);
+
+ boost::uint16_t sequenceNumber() const {
+ return (uint16_t)(seqNumber_2()) << 4 | seqNumber_1();
+ };
+ };
+
+ /** \brief WLAN Management frame packet
+
+ \par Packet type (typedef):
+ \refWLANPacket_MgtFrame
+
+ \par Fields:
+ \ref WLANPacket_MgtFrameParser
+ \image html WLANPacket_MgtFrame.png
+
+ \ingroup protocolbundle_80211
+ */
+ struct WLANPacket_MgtFrameType
+ : public senf::PacketTypeBase,
+ public senf::PacketTypeMixin<WLANPacket_MgtFrameType>
+ {
+ typedef senf::PacketTypeMixin<WLANPacket_MgtFrameType> mixin;
+ typedef senf::ConcretePacket<WLANPacket_MgtFrameType> packet;
+ typedef WLANPacket_MgtFrameParser parser;
+
+ using mixin::init;
+ using mixin::initSize;
+ using senf::PacketTypeBase::nextPacketRange;
+
+ static void dump(packet p, std::ostream &os);
+ };
+
+ typedef WLANPacket_MgtFrameType::packet WLANPacket_MgtFrame;
+
+ ///////////////////////////////////////////////////////////////////////////
+
+ /** \brief Control frame parser
+ <b>Re-ordering of bits due to LSB byte order</b>
+
+ currently only CTS, RTS and ACK control frames are supported
+ */
+ struct WLANPacket_CtrlFrameParser : public WLANPacketParser
+ {
+ # include SENF_PARSER()
+
+ SENF_PARSER_INHERIT(WLANPacketParser);
+
+ SENF_PARSER_FIELD ( receiverAddress, MACAddressParser );
+
+ //only RTS frame contains a source address field
+ //variant is also needed to set correct subtype value
+ SENF_PARSER_VARIANT ( subtype__, subtype,
+ ( ids( na, is_cts, set_cts, key(12, VoidPacketParser)) )
+ ( ids( na, is_ack, set_ack, key(13, VoidPacketParser)) )
+ ( ids( sourceAddress, is_rts, set_rts, key(11, MACAddressParser)) ) );
+
+ SENF_PARSER_INIT() { type_() = 1; }
+
+ SENF_PARSER_FINALIZE(WLANPacket_CtrlFrameParser);
+ };
+
+ /** \brief WLAN Control frame packet
+
+ \par Packet type (typedef):
+ \ref WLANPacket_CtrlFrame
+
+ \par Fields:
+ \ref WLANPacket_CtrlFrameParser
+ \image html WLANPacket_CtrlFrame.png
+
+ \ingroup protocolbundle_80211
+ */
+ struct WLANPacket_CtrlFrameType
+ : public senf::PacketTypeBase,
+ public senf::PacketTypeMixin<WLANPacket_CtrlFrameType>
+ {
+ typedef senf::PacketTypeMixin<WLANPacket_CtrlFrameType> mixin;
+ typedef senf::ConcretePacket<WLANPacket_CtrlFrameType> packet;
+ typedef WLANPacket_CtrlFrameParser parser;
+
+ using mixin::init;
+ using mixin::initSize;
+ using senf::PacketTypeBase::nextPacketRange;
+
+ static void dump(packet p, std::ostream &os);
+ };
+
+ typedef WLANPacket_CtrlFrameType::packet WLANPacket_CtrlFrame;
+
+ ///////////////////////////////////////////////////////////////////////////
+
+ /** \brief Data frame parser
+ <b>Re-ordering of bits due to LSB byte order</b>
+ */
+ struct WLANPacket_DataFrameParser : public WLANPacketParser
+ {
+ # include SENF_PARSER()
+
+ SENF_PARSER_INHERIT(WLANPacketParser);
+
+ SENF_PARSER_GOTO(subtype);
+ SENF_PARSER_SKIP_BITS(14); //<pkgdraw: hide
+ SENF_PARSER_PRIVATE_BITFIELD ( dsBits, 2, unsigned ); //<pkgdraw: hide
+ SENF_PARSER_SKIP ( 2, 2 ); //<pkgdraw: hide
+
+ SENF_PARSER_PRIVATE_FIELD ( addr1, MACAddressParser );
+ SENF_PARSER_PRIVATE_FIELD ( addr2, MACAddressParser );
+ SENF_PARSER_PRIVATE_FIELD ( addr3, MACAddressParser );
+
+ //sequence Number and fragment number
+ //shift bits manually due to LSB
+ SENF_PARSER_PRIVATE_BITFIELD ( seqNumber_1, 4, unsigned );
+ SENF_PARSER_BITFIELD ( fragmentNumber, 4, unsigned );
+ SENF_PARSER_PRIVATE_FIELD ( seqNumber_2, UInt8Parser );
+
+ boost::uint16_t sequenceNumber() const {
+ return (uint16_t)(seqNumber_2()) << 4 | seqNumber_1();
+ };
+
+ // TODO fourth address field in case of WDS
+ // SENF_PARSER_PRIVATE_VARIANT (wds_, dsBits,
+ // ( novalue ( disable_addr4, VoidPacketParser ))
+ // ( id ( addr4, key (3, MACAddressParser ))) );
+
+ //QoS Field
+ SENF_PARSER_VARIANT ( qosField_, subtype,
+ ( ids( na, na, set_data, key(0, VoidPacketParser)) )
+ ( ids( na, na, set_nullData, key(4, VoidPacketParser)) )
+ ( ids( qosField, has_qosField, set_qosData, key(8, UInt16LSBParser )) )
+ //we cannot parse qos Null (data) frames at the moment
+ ( ids( na, na, set_qosNullData, key(12, UInt16LSBParser)) ) );
+
+ SENF_PARSER_INIT() { type_() = 2; }
+
+ SENF_PARSER_FINALIZE(WLANPacket_DataFrameParser);
+
+ MACAddressParser receiverAddress() const { return addr1(); }; //ra is always addr1
+ MACAddressParser transmitterAddress() const { return addr2(); }; //ta is always addr2
+ MACAddressParser sourceAddress() const;
+ MACAddressParser destinationAddress() const;
+ MACAddressParser bssid() const;
+
+ friend class WLANPacket_DataFrameType;
+ };
+
+ /** \brief WLAN Data frame packet
+
+ \par Packet type (typedef):
+ \ref WLANPacket_DataFrame
+
+ \par Fields:
+ \ref WLANPacket_DataFrameParser
+ \image html WLANPacket_DataFrame.png
+
+ \ingroup protocolbundle_80211
+ */
+ struct WLANPacket_DataFrameType
+ : public senf::PacketTypeBase,
+ public senf::PacketTypeMixin<WLANPacket_DataFrameType>
+ {
+ typedef senf::PacketTypeMixin<WLANPacket_DataFrameType> mixin;
+ typedef senf::ConcretePacket<WLANPacket_DataFrameType> packet;
+ typedef WLANPacket_DataFrameParser parser;
+
+ using mixin::init;
+ using mixin::initSize;
+ using mixin::nextPacketRange;
+
+ static factory_t nextPacketType(packet p) {
+ return p->subtype() == 0 || p->subtype() == 8
+ ? LlcSnapPacket::factory()
+ : no_factory();
+ }
+
+ static void dump(packet p, std::ostream &os);
+ };
+
+ typedef WLANPacket_DataFrameType::packet WLANPacket_DataFrame;
+}
+
+#endif /* HH_SENF_Packets_80211Bundle_WLANPacket_ */
+
+\f
+// Local Variables:
+// mode: c++
+// fill-column: 100
+// c-file-style: "senf"
+// indent-tabs-mode: nil
+// ispell-local-dictionary: "american"
+// compile-command: "scons -u test"
+// comment-column: 40
+// End:
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