usr.bin/netstat/pfsync.c

   1 /*      $NetBSD: pfsync.c,v 1.1 2011/03/01 19:01:59 dyoung Exp $        */
   2
   3 /*
   4  * Copyright (c) 1983, 1988, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 #ifndef lint
  34 __RCSID("$NetBSD: pfsync.c,v 1.1 2011/03/01 19:01:59 dyoung Exp $");
  35 #endif /* not lint */
  36
  37 #define _CALLOUT_PRIVATE        /* for defs in sys/callout.h */
  38
  39 #include <sys/param.h>
  40 #include <sys/queue.h>
  41 #include <sys/socket.h>
  42 #include <sys/socketvar.h>
  43 #include <sys/mbuf.h>
  44 #include <sys/protosw.h>
  45 #include <sys/sysctl.h>
  46
  47 #include <net/if_arp.h>
  48 #include <net/route.h>
  49 #include <netinet/in.h>
  50 #include <netinet/in_systm.h>
  51 #include <netinet/ip.h>
  52 #include <netinet/in_pcb.h>
  53 #include <netinet/ip_icmp.h>
  54
  55 #ifdef INET6
  56 #include <netinet/ip6.h>
  57 #endif
  58
  59 #include <net/pfvar.h>
  60 #include <net/if_pfsync.h>
  61
  62 #include <arpa/inet.h>
  63 #include <kvm.h>
  64 #include <netdb.h>
  65 #include <stdio.h>
  66 #include <string.h>
  67 #include <unistd.h>
  68 #include <stdlib.h>
  69 #include <err.h>
  70 #include "netstat.h"
  71 #include "prog_ops.h"
  72
  73 /*
  74  * Dump PFSYNC statistics structure.
  75  */
  76 void
  77 pfsync_stats(u_long off, const char *name)
  78 {
  79         uint64_t pfsyncstat[PFSYNC_NSTATS];
  80
  81         if (use_sysctl) {
  82                 size_t size = sizeof(pfsyncstat);
  83
  84                 if (sysctlbyname("net.inet.pfsync.stats", pfsyncstat, &size,
  85                                  NULL, 0) == -1)
  86                         return;
  87         } else {
  88                 warnx("%s stats not available via KVM.", name);
  89                 return;
  90         }
  91
  92         printf("%s:\n", name);
  93
  94 #define p(f, m) if (pfsyncstat[f] || sflag <= 1) \
  95         printf(m, pfsyncstat[f], plural(pfsyncstat[f]))
  96 #define p2(f, m) if (pfsyncstat[f] || sflag <= 1) \
  97         printf(m, pfsyncstat[f])
  98
  99         p(PFSYNC_STAT_IPACKETS, "\t%" PRIu64 " packet%s received (IPv4)\n");
 100         p(PFSYNC_STAT_IPACKETS6,"\t%" PRIu64 " packet%s received (IPv6)\n");
 101         p(PFSYNC_STAT_BADIF, "\t\t%" PRIu64 " packet%s discarded for bad interface\n");
 102         p(PFSYNC_STAT_BADTTL, "\t\t%" PRIu64 " packet%s discarded for bad ttl\n");
 103         p(PFSYNC_STAT_HDROPS, "\t\t%" PRIu64 " packet%s shorter than header\n");
 104         p(PFSYNC_STAT_BADVER, "\t\t%" PRIu64 " packet%s discarded for bad version\n");
 105         p(PFSYNC_STAT_BADAUTH, "\t\t%" PRIu64 " packet%s discarded for bad HMAC\n");
 106         p(PFSYNC_STAT_BADACT,"\t\t%" PRIu64 " packet%s discarded for bad action\n");
 107         p(PFSYNC_STAT_BADLEN, "\t\t%" PRIu64 " packet%s discarded for short packet\n");
 108         p(PFSYNC_STAT_BADVAL, "\t\t%" PRIu64 " state%s discarded for bad values\n");
 109         p(PFSYNC_STAT_STALE, "\t\t%" PRIu64 " stale state%s\n");
 110         p(PFSYNC_STAT_BADSTATE, "\t\t%" PRIu64 " failed state lookup/insert%s\n");
 111         p(PFSYNC_STAT_OPACKETS, "\t%" PRIu64 " packet%s sent (IPv4)\n");
 112         p(PFSYNC_STAT_OPACKETS6, "\t%" PRIu64 " packet%s sent (IPv6)\n");
 113         p2(PFSYNC_STAT_ONOMEM, "\t\t%" PRIu64 " send failed due to mbuf memory error\n");
 114         p2(PFSYNC_STAT_OERRORS, "\t\t%" PRIu64 " send error\n");
 115 #undef p
 116 #undef p2
 117 }
 118
 119