rerr.h

ucsb大学开发的aodv路由协议代码。

/*
 * Copyright (C) 2001, University of California, Santa Barbara
 * 
 * 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.
 * 
 * Other copyrights might apply to parts of this software and are so
 * noted when applicable.
 */

/*
 * Parts of this program has been derived from PIM sparse-mode pimd.
 * The pimd program is covered by the license in the accompanying file
 * named "LICENSE.pimd".
 *  
 * The pimd program is COPYRIGHT 1998 by University of Southern California.
 *
 */
#ifndef _RERR_H
#define _RERR_H

#include <sys/types.h>

struct UnreachableDest {
  u_int32_t unreachableDest; 
  u_int32_t unreachableDestSeqNum;
  struct UnreachableDest *next;
};

struct RERR {
  u_char type:8;
  u_char N:1,
    reserved1:7;
  u_char reserved2:8;
  u_char destCount;
  struct UnreachableDest *unreachables;
};

extern int localRepair;

extern void generateRERR(u_int32_t broken);
extern void appendUnreachable(struct RERR *rerr
			      , u_int32_t dest
			      , u_int32_t destSeqNum);
extern void receiveRERR(u_int32_t src, char *raw);
extern void createAndSendRERR(u_int32_t broken,int N);

#endif //_RERR_H