122 lines
3.9 KiB
C
122 lines
3.9 KiB
C
/* $NetBSD: qdisc_red.c,v 1.5 2006/10/28 11:43:02 peter Exp $ */
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/* $KAME: qdisc_red.c,v 1.5 2002/11/08 06:36:18 kjc Exp $ */
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/*
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* Copyright (C) 1999-2000
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* Sony Computer Science Laboratories, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <sys/time.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <altq/altq.h>
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#include <altq/altq_red.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <signal.h>
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#include <errno.h>
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#include <err.h>
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#include "altqstat.h"
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static int avg_scale = 4096; /* default fixed-point scale */
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void
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red_stat_loop(int fd, const char *ifname, int count, int interval)
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{
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struct red_stats red_stats;
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struct timeval cur_time, last_time;
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u_int64_t last_bytes;
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double sec;
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int cnt = count;
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sigset_t omask;
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strlcpy(red_stats.iface.red_ifname, ifname,
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sizeof(red_stats.iface.red_ifname));
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gettimeofday(&last_time, NULL);
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last_time.tv_sec -= interval;
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last_bytes = 0;
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for (;;) {
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if (ioctl(fd, RED_GETSTATS, &red_stats) < 0)
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err(1, "ioctl RED_GETSTATS");
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gettimeofday(&cur_time, NULL);
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sec = calc_interval(&cur_time, &last_time);
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printf(" weight:%d inv_pmax:%d qthresh:(%d,%d)\n",
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red_stats.weight, red_stats.inv_pmax,
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red_stats.th_min, red_stats.th_max);
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printf(" q_len:%d (avg: %.2f), q_limit:%d\n",
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red_stats.q_len,
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((double)red_stats.q_avg)/(double)avg_scale,
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red_stats.q_limit);
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printf(" xmit:%llu pkts, drop:%llu pkts (forced: %u, early: %u)\n",
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(ull)red_stats.xmit_cnt.packets,
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(ull)red_stats.drop_cnt.packets,
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red_stats.drop_forced, red_stats.drop_unforced);
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if (red_stats.marked_packets != 0)
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printf(" marked: %u\n", red_stats.marked_packets);
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printf(" throughput: %sbps\n",
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rate2str(calc_rate(red_stats.xmit_cnt.bytes,
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last_bytes, sec)));
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if (red_stats.fv_alloc > 0) {
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printf(" flowvalve: alloc:%u flows:%u\n",
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red_stats.fv_alloc, red_stats.fv_flows);
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printf(" predrop:%u pass:%u escape:%u\n",
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red_stats.fv_predrop, red_stats.fv_pass,
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red_stats.fv_escape);
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}
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printf("\n");
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last_bytes = red_stats.xmit_cnt.bytes;
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last_time = cur_time;
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if (count != 0 && --cnt == 0)
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break;
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/* wait for alarm signal */
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if (sigprocmask(SIG_BLOCK, NULL, &omask) == 0)
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sigsuspend(&omask);
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}
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}
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int
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print_redstats(struct redstats *rp)
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{
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printf(" RED q_avg:%.2f xmit:%llu (forced:%u early:%u marked:%u)\n",
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((double)rp->q_avg)/(double)avg_scale,
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(ull)rp->xmit_cnt.packets,
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rp->drop_forced,
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rp->drop_unforced,
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rp->marked_packets);
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return 0;
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}
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