if ipv6 doesnt need oldstyle prototypes maybe its time we took them out
[dragonfly.git] / sys / netinet / icmp_var.h
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1/*
2 * Copyright (c) 1982, 1986, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)icmp_var.h 8.1 (Berkeley) 6/10/93
34 * $FreeBSD: src/sys/netinet/icmp_var.h,v 1.15.2.2 2001/12/07 09:23:11 ru Exp $
42a7fc75 35 * $DragonFly: src/sys/netinet/icmp_var.h,v 1.3 2003/08/23 11:18:00 rob Exp $
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36 */
37
38#ifndef _NETINET_ICMP_VAR_H_
39#define _NETINET_ICMP_VAR_H_
40
41#ifdef _KERNEL
42#include "opt_icmp_bandlim.h" /* for ICMP_BANDLIM */
43#endif
44
45/*
46 * Variables related to this implementation
47 * of the internet control message protocol.
48 */
49struct icmpstat {
50/* statistics related to icmp packets generated */
51 u_long icps_error; /* # of calls to icmp_error */
52 u_long icps_oldshort; /* no error 'cuz old ip too short */
53 u_long icps_oldicmp; /* no error 'cuz old was icmp */
54 u_long icps_outhist[ICMP_MAXTYPE + 1];
55/* statistics related to input messages processed */
56 u_long icps_badcode; /* icmp_code out of range */
57 u_long icps_tooshort; /* packet < ICMP_MINLEN */
58 u_long icps_checksum; /* bad checksum */
59 u_long icps_badlen; /* calculated bound mismatch */
60 u_long icps_reflect; /* number of responses */
61 u_long icps_inhist[ICMP_MAXTYPE + 1];
62 u_long icps_bmcastecho; /* b/mcast echo requests dropped */
63 u_long icps_bmcasttstamp; /* b/mcast tstamp requests dropped */
64 u_long icps_badaddr; /* bad return address */
65 u_long icps_noroute; /* no route back */
66};
67
68/*
69 * Names for ICMP sysctl objects
70 */
71#define ICMPCTL_MASKREPL 1 /* allow replies to netmask requests */
72#define ICMPCTL_STATS 2 /* statistics (read-only) */
73#define ICMPCTL_ICMPLIM 3
74#define ICMPCTL_MAXID 4
75
76#define ICMPCTL_NAMES { \
77 { 0, 0 }, \
78 { "maskrepl", CTLTYPE_INT }, \
79 { "stats", CTLTYPE_STRUCT }, \
80 { "icmplim", CTLTYPE_INT }, \
81}
82
83#ifdef _KERNEL
84SYSCTL_DECL(_net_inet_icmp);
85#ifdef ICMP_BANDLIM
42a7fc75 86extern int badport_bandlim (int);
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87#endif
88#define BANDLIM_UNLIMITED -1
89#define BANDLIM_ICMP_UNREACH 0
90#define BANDLIM_ICMP_ECHO 1
91#define BANDLIM_ICMP_TSTAMP 2
92#define BANDLIM_RST_CLOSEDPORT 3 /* No connection, and no listeners */
93#define BANDLIM_RST_OPENPORT 4 /* No connection, listener */
94#define BANDLIM_MAX 4
95#endif
96
97#endif