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: releng/5.1/sys/netinet/icmp_var.h 92723 2002-03-19 21:25:46Z alfred $
35 */
36
37 #ifndef _NETINET_ICMP_VAR_H_
38 #define _NETINET_ICMP_VAR_H_
39
40
41 /*
42 * Variables related to this implementation
43 * of the internet control message protocol.
44 */
45 struct icmpstat {
46 /* statistics related to icmp packets generated */
47 u_long icps_error; /* # of calls to icmp_error */
48 u_long icps_oldshort; /* no error 'cuz old ip too short */
49 u_long icps_oldicmp; /* no error 'cuz old was icmp */
50 u_long icps_outhist[ICMP_MAXTYPE + 1];
51 /* statistics related to input messages processed */
52 u_long icps_badcode; /* icmp_code out of range */
53 u_long icps_tooshort; /* packet < ICMP_MINLEN */
54 u_long icps_checksum; /* bad checksum */
55 u_long icps_badlen; /* calculated bound mismatch */
56 u_long icps_reflect; /* number of responses */
57 u_long icps_inhist[ICMP_MAXTYPE + 1];
58 u_long icps_bmcastecho; /* b/mcast echo requests dropped */
59 u_long icps_bmcasttstamp; /* b/mcast tstamp requests dropped */
60 u_long icps_badaddr; /* bad return address */
61 u_long icps_noroute; /* no route back */
62 };
63
64 /*
65 * Names for ICMP sysctl objects
66 */
67 #define ICMPCTL_MASKREPL 1 /* allow replies to netmask requests */
68 #define ICMPCTL_STATS 2 /* statistics (read-only) */
69 #define ICMPCTL_ICMPLIM 3
70 #define ICMPCTL_MAXID 4
71
72 #define ICMPCTL_NAMES { \
73 { 0, 0 }, \
74 { "maskrepl", CTLTYPE_INT }, \
75 { "stats", CTLTYPE_STRUCT }, \
76 { "icmplim", CTLTYPE_INT }, \
77 }
78
79 #ifdef _KERNEL
80 SYSCTL_DECL(_net_inet_icmp);
81 extern int badport_bandlim(int);
82 #define BANDLIM_UNLIMITED -1
83 #define BANDLIM_ICMP_UNREACH 0
84 #define BANDLIM_ICMP_ECHO 1
85 #define BANDLIM_ICMP_TSTAMP 2
86 #define BANDLIM_RST_CLOSEDPORT 3 /* No connection, and no listeners */
87 #define BANDLIM_RST_OPENPORT 4 /* No connection, listener */
88 #define BANDLIM_MAX 4
89 #endif
90
91 #endif
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