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 
79 void      icmp_statinc(u_int stat);
80 
81 #endif /* _KERNEL_ */
82 
83 #endif /* !_NETINET_ICMP_VAR_H_ */
84