sr_forwarder.h
上传用户:rrhhcc
上传日期:2015-12-11
资源大小:54129k
文件大小:3k
- /*
- * sr_forwarder.h
- * Copyright (C) 2000 by the University of Southern California
- * $Id: sr_forwarder.h,v 1.2 2005/08/25 18:58:05 johnh Exp $
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * 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.
- *
- *
- * The copyright of this module includes the following
- * linking-with-specific-other-licenses addition:
- *
- * In addition, as a special exception, the copyright holders of
- * this module give you permission to combine (via static or
- * dynamic linking) this module with free software programs or
- * libraries that are released under the GNU LGPL and with code
- * included in the standard release of ns-2 under the Apache 2.0
- * license or under otherwise-compatible licenses with advertising
- * requirements (or modified versions of such code, with unchanged
- * license). You may copy and distribute such a system following the
- * terms of the GNU GPL for this module and the licenses of the
- * other code concerned, provided that you include the source code of
- * that other code when and as the GNU GPL requires distribution of
- * source code.
- *
- * Note that people who make modified versions of this module
- * are not obligated to grant this special exception for their
- * modified versions; it is their choice whether to do so. The GNU
- * General Public License gives permission to release a modified
- * version without this exception; this exception also makes it
- * possible to release a modified version which carries forward this
- * exception.
- *
- */
- // Other copyrights might apply to parts of this software and are so
- // noted when applicable.
- //
- // Ported from CMU/Monarch's code, appropriate copyright applies.
- /* -*- c++ -*-
-
- sr_forwarder.h
- source route forwarder
- */
- #ifndef _sr_forwarder_
- #define _sr_forwarder_
- #include <object.h>
- #include <trace.h>
- #include "dsr_proto.h"
- #include "requesttable.h"
- #include "routecache.h"
- /* a source route forwarding object takes packets and if it has a SR
- routing header it forwards the packets into target_ according to the
- header. Otherwise, it gives the packet to the noroute_ object in
- hopes that it knows what to do with it. */
- class SRForwarder : public NsObject {
- public:
- SRForwarder();
- protected:
- virtual int command(int argc, const char*const* argv);
- virtual void recv(Packet*, Handler* callback = 0);
- NsObject* target_; /* where to send forwarded pkts */
- DSRProto* route_agent_; /* where to send unforwardable pkts */
- RouteCache* routecache_; /* the routecache */
- private:
- void handlePktWithoutSR(Packet *p);
- Trace *tracetarget;
- int off_mac_;
- int off_ll_;
- int off_ip_;
- int off_sr_;
- };
- #endif //_sr_forwarder_