00001 00002 /* 00003 * sr_forwarder.h 00004 * Copyright (C) 2000 by the University of Southern California 00005 * $Id: sr_forwarder.h,v 1.2 2005/08/25 18:58:05 johnh Exp $ 00006 * 00007 * This program is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU General Public License, 00009 * version 2, as published by the Free Software Foundation. 00010 * 00011 * This program is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 * GNU General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU General Public License along 00017 * with this program; if not, write to the Free Software Foundation, Inc., 00018 * 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. 00019 * 00020 * 00021 * The copyright of this module includes the following 00022 * linking-with-specific-other-licenses addition: 00023 * 00024 * In addition, as a special exception, the copyright holders of 00025 * this module give you permission to combine (via static or 00026 * dynamic linking) this module with free software programs or 00027 * libraries that are released under the GNU LGPL and with code 00028 * included in the standard release of ns-2 under the Apache 2.0 00029 * license or under otherwise-compatible licenses with advertising 00030 * requirements (or modified versions of such code, with unchanged 00031 * license). You may copy and distribute such a system following the 00032 * terms of the GNU GPL for this module and the licenses of the 00033 * other code concerned, provided that you include the source code of 00034 * that other code when and as the GNU GPL requires distribution of 00035 * source code. 00036 * 00037 * Note that people who make modified versions of this module 00038 * are not obligated to grant this special exception for their 00039 * modified versions; it is their choice whether to do so. The GNU 00040 * General Public License gives permission to release a modified 00041 * version without this exception; this exception also makes it 00042 * possible to release a modified version which carries forward this 00043 * exception. 00044 * 00045 */ 00046 00047 // Other copyrights might apply to parts of this software and are so 00048 // noted when applicable. 00049 // 00050 // Ported from CMU/Monarch's code, appropriate copyright applies. 00051 /* -*- c++ -*- 00052 00053 sr_forwarder.h 00054 source route forwarder 00055 00056 */ 00057 00058 #ifndef _sr_forwarder_ 00059 #define _sr_forwarder_ 00060 00061 #include <object.h> 00062 #include <trace.h> 00063 00064 #include "dsr_proto.h" 00065 #include "requesttable.h" 00066 #include "routecache.h" 00067 00068 /* a source route forwarding object takes packets and if it has a SR 00069 routing header it forwards the packets into target_ according to the 00070 header. Otherwise, it gives the packet to the noroute_ object in 00071 hopes that it knows what to do with it. */ 00072 00073 class SRForwarder : public NsObject { 00074 public: 00075 SRForwarder(); 00076 00077 protected: 00078 virtual int command(int argc, const char*const* argv); 00079 virtual void recv(Packet*, Handler* callback = 0); 00080 00081 NsObject* target_; /* where to send forwarded pkts */ 00082 DSRProto* route_agent_; /* where to send unforwardable pkts */ 00083 RouteCache* routecache_; /* the routecache */ 00084 00085 private: 00086 void handlePktWithoutSR(Packet *p); 00087 Trace *tracetarget; 00088 int off_mac_; 00089 int off_ll_; 00090 int off_ip_; 00091 int off_sr_; 00092 }; 00093 #endif //_sr_forwarder_
1.7.1