generate_msg.c

wifi 无线网络路由协议OLSR linux下C代码

/*
 * The olsr.org Optimized Link-State Routing daemon(olsrd)
 * Copyright (c) 2004, Andreas T鴑nesen([e-mail])
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions 
 * are met:
 *
 * * Redistributions of source code must retain the above copyright 
 *   notice, this list of conditions and the following disclaimer.
 * * 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.
 * * Neither the name of olsr.org, olsrd nor the names of its 
 *   contributors may be used to endorse or promote products derived 
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 
 * COPYRIGHT OWNER 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.
 *
 * Visit http://www.olsr.org for more information.
 *
 * If you find this software useful feel free to make a donation
 * to the project. For more information see the website or contact
 * the copyright holders.
 *
 * $Id: generate_msg.c,v 1.25 2007/04/20 13:46:04 bernd67 Exp $
 */

#include "generate_msg.h"
#include "defs.h"
#include "olsr.h"
#include "build_msg.h"
#include "packet.h"

/*
 * Infomation repositiries
 */
#include "hna_set.h"
#include "mid_set.h"
#include "tc_set.h"
#include "mpr_selector_set.h"
#include "duplicate_set.h"
#include "neighbor_table.h"
#include "link_set.h"
#include "two_hop_neighbor_table.h"


static char pulsedata[] = {'\\', '|', '/', '-'};
#define PULSE_MAX 4
static olsr_u8_t pulse_state = 0;


void
generate_hello(void *p)
{
  struct hello_message hellopacket;
  struct interface *ifn = (struct interface *)p;

  olsr_build_hello_packet(&hellopacket, ifn);
      
  if(queue_hello(&hellopacket, ifn))
    net_output(ifn);

  olsr_free_hello_packet(&hellopacket);

}

void
generate_tc(void *p)
{
  struct tc_message tcpacket;
  struct interface *ifn = (struct interface *)p;

  olsr_build_tc_packet(&tcpacket);

  if(queue_tc(&tcpacket, ifn) && TIMED_OUT(ifn->fwdtimer))
    {
      set_buffer_timer(ifn);
    }

  olsr_free_tc_packet(&tcpacket);
}

void
generate_mid(void *p)
{
  struct interface *ifn = (struct interface *)p;
  
  if(queue_mid(ifn) && TIMED_OUT(ifn->fwdtimer))
    {
      set_buffer_timer(ifn);
    }

}



void
generate_hna(void *p)
{
  struct interface *ifn = (struct interface *)p;
  
  if(queue_hna(ifn) && TIMED_OUT(ifn->fwdtimer))
    {
      set_buffer_timer(ifn);
    }
}


void
generate_stdout_pulse(void *foo __attribute__((unused)))
{
  if(olsr_cnf->debug_level == 0)
    return;

  pulse_state = pulse_state == 3 ? 0 : pulse_state + 1;

  printf("%c\r", pulsedata[pulse_state]);

}