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/* $OpenBSD: qdisc_red.c,v 1.2 2001/08/16 12:59:43 kjc Exp $ */
/* $KAME: qdisc_red.c,v 1.3 2001/08/15 12:51:59 kjc Exp $ */
/*
* Copyright (C) 1999-2000
* Sony Computer Science Laboratories, Inc. 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.
*
* THIS SOFTWARE IS PROVIDED BY SONY CSL 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 SONY CSL 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.
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/in.h>
#include <altq/altq.h>
#include <altq/altq_red.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <math.h>
#include <errno.h>
#include <err.h>
#include "altqstat.h"
static int avg_scale = 4096; /* default fixed-point scale */
void
red_stat_loop(int fd, const char *ifname, int count, int interval)
{
struct red_stats red_stats;
struct timeval cur_time, last_time;
u_int64_t last_bytes;
double sec;
int cnt = count;
strlcpy(red_stats.iface.red_ifname, ifname,
sizeof(red_stats.iface.red_ifname));
gettimeofday(&last_time, NULL);
last_time.tv_sec -= interval;
last_bytes = 0;
while (count == 0 || cnt-- > 0) {
if (ioctl(fd, RED_GETSTATS, &red_stats) < 0)
err(1, "ioctl RED_GETSTATS");
gettimeofday(&cur_time, NULL);
sec = calc_interval(&cur_time, &last_time);
printf(" weight:%d inv_pmax:%d qthresh:(%d,%d)\n",
red_stats.weight, red_stats.inv_pmax,
red_stats.th_min, red_stats.th_max);
printf(" q_len:%d (avg: %.2f), q_limit:%d\n",
red_stats.q_len,
((double)red_stats.q_avg)/(double)avg_scale,
red_stats.q_limit);
printf(" xmit:%llu pkts, drop:%llu pkts (forced: %u, early: %u)\n",
(ull)red_stats.xmit_cnt.packets,
(ull)red_stats.drop_cnt.packets,
red_stats.drop_forced, red_stats.drop_unforced);
if (red_stats.marked_packets != 0)
printf(" marked: %u\n", red_stats.marked_packets);
printf(" throughput: %sbps\n",
rate2str(calc_rate(red_stats.xmit_cnt.bytes,
last_bytes, sec)));
if (red_stats.fv_alloc > 0) {
printf(" flowvalve: alloc:%u flows:%u\n",
red_stats.fv_alloc, red_stats.fv_flows);
printf(" predrop:%u pass:%u escape:%u\n",
red_stats.fv_predrop, red_stats.fv_pass,
red_stats.fv_escape);
}
printf("\n");
last_bytes = red_stats.xmit_cnt.bytes;
last_time = cur_time;
sleep(interval);
}
}
int
print_redstats(struct redstats *rp)
{
printf(" RED q_avg:%.2f xmit:%llu (forced:%u early:%u marked:%u)\n",
((double)rp->q_avg)/(double)avg_scale,
(ull)rp->xmit_cnt.packets,
rp->drop_forced,
rp->drop_unforced,
rp->marked_packets);
return 0;
}
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