1/*	$NetBSD: icmp_var.h,v 1.32 2022/08/29 09:14:02 knakahara Exp $	*/
 2
 3/*
 4 * Copyright (c) 1982, 1986, 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 *	@(#)icmp_var.h	8.1 (Berkeley) 6/10/93
32 */
33
34#ifndef _NETINET_ICMP_VAR_H_
35#define _NETINET_ICMP_VAR_H_
36
37/*
38 * Variables related to this implementation
39 * of the internet control message protocol.
40 */
41
42/*
43 * ICMP stastistics.
44 * Each counter is an unsigned 64-bit value.
45 */
46#define	ICMP_STAT_ERROR		0	/* # of calls to icmp_error */
47#define	ICMP_STAT_OLDSHORT	1	/* no error (old ip too short) */
48#define	ICMP_STAT_OLDICMP	2	/* no error (old was icmp) */
49#define	ICMP_STAT_BADCODE	3	/* icmp_code out of range */
50#define	ICMP_STAT_TOOSHORT	4	/* packet < ICMP_MINLEN */
51#define	ICMP_STAT_CHECKSUM	5	/* bad checksum */
52#define	ICMP_STAT_BADLEN	6	/* calculated bound mismatch */
53#define	ICMP_STAT_REFLECT	7	/* number of responses */
54#define	ICMP_STAT_PMTUCHG	8	/* path MTU changes */
55#define	ICMP_STAT_BMCASTECHO	9	/* b/mcast echo requests dropped */
56#define	ICMP_STAT_BMCASTTSTAMP	10	/* b/mcast tstamp requests dropped */
57#define	ICMP_STAT_LAST		16	/* Allow for 5 spare ones */
58#define	ICMP_STAT_OUTHIST	ICMP_STAT_LAST
59#define	ICMP_STAT_INHIST	(ICMP_STAT_LAST + ICMP_NTYPES)
60#define	ICMP_NSTATS		(ICMP_STAT_LAST + 2 * ICMP_NTYPES)
61
62/*
63 * Names for ICMP sysctl objects
64 */
65#define	ICMPCTL_MASKREPL	1	/* allow replies to netmask requests */
66#if 0	/*obsoleted*/
67#define ICMPCTL_ERRRATELIMIT	2	/* error rate limit */
68#endif
69#define ICMPCTL_RETURNDATABYTES	3	/* # of bytes to include in errors */
70#define ICMPCTL_ERRPPSLIMIT	4	/* ICMP error pps limitation */
71#define ICMPCTL_REDIRACCEPT	5	/* Accept redirects from routers */
72#define ICMPCTL_REDIRTIMEOUT	6	/* Remove routes added via redirects */
73#define	ICMPCTL_STATS		7	/* ICMP statistics */
74#define ICMPCTL_BMCASTECHO	8	/* allow broad/mult-cast echo */
75#define ICMPCTL_DYNAMIC_RT_MSG	9	/* send routing message for RTM_DYNAMIC */
76
77#ifdef _KERNEL
78
79void	icmp_statinc(u_int stat);
80
81#endif /* _KERNEL_ */
82
83#endif /* !_NETINET_ICMP_VAR_H_ */