133 lines
4.3 KiB
C
133 lines
4.3 KiB
C
/* $NetBSD: pfsync.c,v 1.5 2022/09/02 06:25:43 msaitoh Exp $ */
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/*
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* Copyright (c) 1983, 1988, 1993
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* The Regents of the University of California. 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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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 THE REGENTS 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/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: pfsync.c,v 1.5 2022/09/02 06:25:43 msaitoh Exp $");
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#endif /* not lint */
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#define _CALLOUT_PRIVATE /* for defs in sys/callout.h */
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/mbuf.h>
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#include <sys/protosw.h>
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#include <sys/sysctl.h>
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#include <net/if_arp.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/in_pcb.h>
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#include <netinet/ip_icmp.h>
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#ifdef INET6
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#include <netinet/ip6.h>
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#endif
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#include <net/pfvar.h>
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#include <net/if_pfsync.h>
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#include <arpa/inet.h>
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#include <kvm.h>
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#include <netdb.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <err.h>
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#include <errno.h>
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#include "netstat.h"
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#include "prog_ops.h"
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/*
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* Dump PFSYNC statistics structure.
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*/
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void
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pfsync_stats(u_long off, const char *name)
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{
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uint64_t pfsyncstat[PFSYNC_NSTATS];
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if (use_sysctl) {
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size_t size = sizeof(pfsyncstat);
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if (prog_sysctlbyname("net.inet.pfsync.stats", pfsyncstat,
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&size, NULL, 0) == -1 && errno != ENOMEM)
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return;
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} else {
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warnx("%s stats not available via KVM.", name);
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return;
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}
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printf("%s:\n", name);
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#define p(f, m) if (pfsyncstat[f] || sflag <= 1) \
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printf(m, pfsyncstat[f], plural(pfsyncstat[f]))
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#define p2(f, m) if (pfsyncstat[f] || sflag <= 1) \
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printf(m, pfsyncstat[f])
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p(PFSYNC_STAT_IPACKETS, "\t%" PRIu64 " packet%s received (IPv4)\n");
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p(PFSYNC_STAT_IPACKETS6,"\t%" PRIu64 " packet%s received (IPv6)\n");
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p(PFSYNC_STAT_BADIF,
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"\t\t%" PRIu64 " packet%s discarded for bad interface\n");
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p(PFSYNC_STAT_BADTTL,
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"\t\t%" PRIu64 " packet%s discarded for bad ttl\n");
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p(PFSYNC_STAT_HDROPS,
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"\t\t%" PRIu64 " packet%s shorter than header\n");
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p(PFSYNC_STAT_BADVER,
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"\t\t%" PRIu64 " packet%s discarded for bad version\n");
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p(PFSYNC_STAT_BADAUTH,
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"\t\t%" PRIu64 " packet%s discarded for bad HMAC\n");
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p(PFSYNC_STAT_BADACT,
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"\t\t%" PRIu64 " packet%s discarded for bad action\n");
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p(PFSYNC_STAT_BADLEN,
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"\t\t%" PRIu64 " packet%s discarded for short packet\n");
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p(PFSYNC_STAT_BADVAL,
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"\t\t%" PRIu64 " state%s discarded for bad values\n");
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p(PFSYNC_STAT_STALE,
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"\t\t%" PRIu64 " stale state%s\n");
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p(PFSYNC_STAT_BADSTATE,
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"\t\t%" PRIu64 " failed state lookup/insert%s\n");
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p(PFSYNC_STAT_OPACKETS,
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"\t%" PRIu64 " packet%s sent (IPv4)\n");
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p(PFSYNC_STAT_OPACKETS6,
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"\t%" PRIu64 " packet%s sent (IPv6)\n");
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p2(PFSYNC_STAT_ONOMEM,
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"\t\t%" PRIu64 " send failed due to mbuf memory error\n");
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p2(PFSYNC_STAT_OERRORS,
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"\t\t%" PRIu64 " send error\n");
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#undef p
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#undef p2
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}
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