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 * $FreeBSD$
35 */
36
37 #ifndef _NETINET_ICMP_VAR_H_
38 #define _NETINET_ICMP_VAR_H_
39
40 #ifdef _KERNEL
41 #include "opt_icmp_bandlim.h" /* for ICMP_BANDLIM */
42 #endif
43
44 /*
45 * Variables related to this implementation
46 * of the internet control message protocol.
47 */
48 struct icmpstat {
49 /* statistics related to icmp packets generated */
50 u_long icps_error; /* # of calls to icmp_error */
51 u_long icps_oldshort; /* no error 'cuz old ip too short */
52 u_long icps_oldicmp; /* no error 'cuz old was icmp */
53 u_long icps_outhist[ICMP_MAXTYPE + 1];
54 /* statistics related to input messages processed */
55 u_long icps_badcode; /* icmp_code out of range */
56 u_long icps_tooshort; /* packet < ICMP_MINLEN */
57 u_long icps_checksum; /* bad checksum */
58 u_long icps_badlen; /* calculated bound mismatch */
59 u_long icps_reflect; /* number of responses */
60 u_long icps_inhist[ICMP_MAXTYPE + 1];
61 u_long icps_bmcastecho; /* b/mcast echo requests dropped */
62 u_long icps_bmcasttstamp; /* b/mcast tstamp requests dropped */
63 u_long icps_badaddr; /* bad return address */
64 u_long icps_noroute; /* no route back */
65 };
66
67 /*
68 * Names for ICMP sysctl objects
69 */
70 #define ICMPCTL_MASKREPL 1 /* allow replies to netmask requests */
71 #define ICMPCTL_STATS 2 /* statistics (read-only) */
72 #define ICMPCTL_ICMPLIM 3
73 #define ICMPCTL_MAXID 4
74
75 #define ICMPCTL_NAMES { \
76 { 0, 0 }, \
77 { "maskrepl", CTLTYPE_INT }, \
78 { "stats", CTLTYPE_STRUCT }, \
79 { "icmplim", CTLTYPE_INT }, \
80 }
81
82 #ifdef _KERNEL
83 SYSCTL_DECL(_net_inet_icmp);
84 #ifdef ICMP_BANDLIM
85 extern int badport_bandlim __P((int));
86 #endif
87 #define BANDLIM_UNLIMITED -1
88 #define BANDLIM_ICMP_UNREACH 0
89 #define BANDLIM_ICMP_ECHO 1
90 #define BANDLIM_ICMP_TSTAMP 2
91 #define BANDLIM_RST_CLOSEDPORT 3 /* No connection, and no listeners */
92 #define BANDLIM_RST_OPENPORT 4 /* No connection, listener */
93 #define BANDLIM_MAX 4
94 #endif
95
96 #endif
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