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/*-
* Copyright (c) 2014 Gleb Smirnoff <glebius@FreeBSD.org>
*
* 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.
* 4. Neither the name of the University 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 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/sysctl.h>
#include <net/flowtable.h>
#include <err.h>
#include <stdint.h>
#include <stdio.h>
#include <stdbool.h>
#include "netstat.h"
/*
* Print flowtable statistics.
*/
static void
print_stats(struct flowtable_stat *stat)
{
#define p(f, m) if (stat->f || sflag <= 1) \
printf(m, (uintmax_t)stat->f, plural(stat->f))
#define p2(f, m) if (stat->f || sflag <= 1) \
printf(m, (uintmax_t)stat->f, plurales(stat->f))
p(ft_lookups, "\t%ju lookup%s\n");
p(ft_hits, "\t%ju hit%s\n");
p2(ft_misses, "\t%ju miss%s\n");
p(ft_inserts, "\t%ju insert%s\n");
p(ft_collisions, "\t%ju collision%s\n");
p(ft_free_checks, "\t%ju free check%s\n");
p(ft_frees, "\t%ju free%s\n");
p(ft_fail_lle_invalid,
"\t%ju lookup%s with not resolved Layer 2 address\n");
#undef p2
#undef p
}
void
flowtable_stats(void)
{
struct flowtable_stat stat;
size_t len = sizeof(stat);
if (!live)
return;
if (sysctlbyname("net.flowtable.ip4.stat", &stat, &len, NULL, 0) == 0) {
printf("flowtable for IPv4:\n");
print_stats(&stat);
}
if (sysctlbyname("net.flowtable.ip6.stat", &stat, &len, NULL, 0) == 0) {
printf("flowtable for IPv6:\n");
print_stats(&stat);
}
}
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