1 /*-
2 * Copyright (c) 2014 Gleb Smirnoff <glebius@FreeBSD.org>
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 4. Neither the name of the University nor the names of its contributors
13 * may be used to endorse or promote products derived from this software
14 * without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31 #include <sys/param.h>
32 #include <sys/sysctl.h>
33 #include <net/flowtable.h>
34 #include <err.h>
35 #include <stdint.h>
36 #include <stdio.h>
37 #include "netstat.h"
38
39 /*
40 * Print flowtable statistics.
41 */
42
43 static void
print_stats(struct flowtable_stat * stat)44 print_stats(struct flowtable_stat *stat)
45 {
46
47 #define p(f, m) if (stat->f || sflag <= 1) \
48 printf(m, (uintmax_t)stat->f, plural(stat->f))
49 #define p2(f, m) if (stat->f || sflag <= 1) \
50 printf(m, (uintmax_t)stat->f, plurales(stat->f))
51
52 p(ft_lookups, "\t%ju lookup%s\n");
53 p(ft_hits, "\t%ju hit%s\n");
54 p2(ft_misses, "\t%ju miss%s\n");
55 p(ft_inserts, "\t%ju insert%s\n");
56 p(ft_collisions, "\t%ju collision%s\n");
57 p(ft_free_checks, "\t%ju free check%s\n");
58 p(ft_frees, "\t%ju free%s\n");
59 p(ft_fail_lle_invalid,
60 "\t%ju lookup%s with not resolved Layer 2 address\n");
61
62 #undef p2
63 #undef p
64 }
65
66 void
flowtable_stats(void)67 flowtable_stats(void)
68 {
69 struct flowtable_stat stat;
70 size_t len = sizeof(stat);
71
72 if (!live)
73 return;
74
75 if (sysctlbyname("net.flowtable.ip4.stat", &stat, &len, NULL, 0) == 0) {
76 printf("flowtable for IPv4:\n");
77 print_stats(&stat);
78 }
79
80 if (sysctlbyname("net.flowtable.ip6.stat", &stat, &len, NULL, 0) == 0) {
81 printf("flowtable for IPv6:\n");
82 print_stats(&stat);
83 }
84 }
85