tora.h
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- /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
- /*
- * Copyright (c) 1997 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the Computer Systems
- * Engineering Group at Lawrence Berkeley Laboratory.
- * 4. Neither the name of the University nor of the Laboratory may be used
- * to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * Ported from CMU/Monarch's code
- *
- * $Header: /cvsroot/nsnam/ns-2/tora/tora.h,v 1.5 2000/09/01 03:04:12 haoboy Exp $
- */
- #ifndef __tora_h__
- #define __tora_h__
- #include <packet.h>
- #include <ip.h>
- #include <cmu-trace.h>
- #include <priqueue.h>
- #include <rtqueue.h>
- #include "lib/bsd-list.h"
- #include <rtproto/rtproto.h>
- #include <imep/imep.h>
- #include <tora/tora_packet.h>
- #include <tora/tora_neighbor.h>
- #include <tora/tora_dest.h>
- LIST_HEAD(td_head, TORADest);
- //#define LOGGING
- typedef double Time;
- /*
- * Causes TORA to discard any packets that have "looped".
- */
- #define TORA_DISALLOW_ROUTE_LOOP
- #define MinQueryRate 0.200 // seconds
- // used to rate limit queries
- class TORANeighbor;
- class TORADest;
- class Height;
- class toraAgent : public rtAgent {
- friend class TORANeighbor;
- friend class TORADest;
- public:
- toraAgent(nsaddr_t id);
- void recv(Packet* p, Handler*);
- int command(int argc, const char*const* argv);
- // ============================================================
- // Routing API (see cmu/rtproto/rtproto.h)
- void rtNotifyLinkUP(nsaddr_t index);
- void rtNotifyLinkDN(nsaddr_t index);
- void rtNotifyLinkStatus(nsaddr_t index, u_int32_t status);
- void rtRoutePacket(Packet *p);
- // ============================================================
- private:
- nsaddr_t index; // added for line 78 of tora.cc, needed for
- // further verification
- TORADest* dst_find(nsaddr_t id);
- TORADest* dst_add(nsaddr_t id);
- void dst_dump(void);
- void rt_resolve(Packet *p);
- void forward(Packet *p, nsaddr_t nexthop, Time delay = 0.0);
- void purge_queue(void);
- void enque(TORADest *td, Packet *p);
- Packet* deque(TORADest *td);
- /*
- * Incoming Packets
- */
- void recvTORA(Packet* p);
- void recvQRY(Packet *p);
- void recvUPD(Packet *p);
- void recvCLR(Packet *p);
- /*
- * Outgoing Packets
- */
- void sendQRY(nsaddr_t id);
- void sendUPD(nsaddr_t id);
- void sendCLR(nsaddr_t id, double tau, nsaddr_t oid);
- void tora_output(Packet *p);
- // ============================================================
- // ============================================================
- inline int initialized() {
- return logtarget && ifqueue && imepagent;
- }
- td_head dstlist; // Active destinations
- imepAgent *imepagent;
- // a handle to the IMEP layer
- /*
- * A mechanism for logging the contents of the routing
- * table.
- */
- Trace *logtarget;
- void trace(char* fmt, ...);
- virtual void reset();
- /*
- * A "drop-front" queue used by the routing layer to buffer
- * packets to which it does not have a route.
- */
- rtqueue rqueue;
- /*
- * A pointer to the network interface queue that sits
- * between the "classifier" and the "link layer".
- */
- PriQueue *ifqueue;
- /*
- * Logging Routines
- */
- void log_route_loop(nsaddr_t prev, nsaddr_t next);
- void log_link_layer_feedback(Packet *p);
- void log_link_layer_recycle(Packet *p);
- void log_lnk_del(nsaddr_t dst);
- void log_lnk_kept(nsaddr_t dst);
- void log_nb_del(nsaddr_t dst, nsaddr_t id);
- void log_recv_qry(Packet *p);
- void log_recv_upd(Packet *p);
- void log_recv_clr(Packet *p);
- void log_route_table(void);
- void log_dst_state_change(TORADest *td);
- void logNextHopChange(TORADest *td);
- void logNbDeletedLastDN(TORADest *td);
- void logToraDest(TORADest *td);
- void logToraNeighbor(TORANeighbor *tn);
- };
- #endif /* __tora_h__ */