1 /* $NetBSD: icmp_var.h,v 1.25 2005/12/10 23:36:23 elad 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 struct icmpstat {
42 /* statistics related to icmp packets generated */
43 u_quad_t icps_error; /* # of calls to icmp_error */
44 u_quad_t icps_oldshort; /* no error 'cuz old ip too short */
45 u_quad_t icps_oldicmp; /* no error 'cuz old was icmp */
46 u_quad_t icps_outhist[ICMP_MAXTYPE + 1];
47 /* statistics related to input messages processed */
48 u_quad_t icps_badcode; /* icmp_code out of range */
49 u_quad_t icps_tooshort; /* packet < ICMP_MINLEN */
50 u_quad_t icps_checksum; /* bad checksum */
51 u_quad_t icps_badlen; /* calculated bound mismatch */
52 u_quad_t icps_reflect; /* number of responses */
53 u_quad_t icps_inhist[ICMP_MAXTYPE + 1];
54 u_quad_t icps_pmtuchg; /* path MTU changes */
55 };
56
57 /*
58 * Names for ICMP sysctl objects
59 */
60 #define ICMPCTL_MASKREPL 1 /* allow replies to netmask requests */
61 #if 0 /*obsoleted*/
62 #define ICMPCTL_ERRRATELIMIT 2 /* error rate limit */
63 #endif
64 #define ICMPCTL_RETURNDATABYTES 3 /* # of bytes to include in errors */
65 #define ICMPCTL_ERRPPSLIMIT 4 /* ICMP error pps limitation */
66 #define ICMPCTL_REDIRACCEPT 5 /* Accept redirects from routers */
67 #define ICMPCTL_REDIRTIMEOUT 6 /* Remove routes added via redirects */
68 #define ICMPCTL_STATS 7 /* ICMP statistics */
69 #define ICMPCTL_MAXID 8
70
71 #define ICMPCTL_NAMES { \
72 { 0, 0 }, \
73 { "maskrepl", CTLTYPE_INT }, \
74 { 0, 0 }, \
75 { "returndatabytes", CTLTYPE_INT }, \
76 { "errppslimit", CTLTYPE_INT }, \
77 { "rediraccept", CTLTYPE_INT }, \
78 { "redirtimeout", CTLTYPE_INT }, \
79 { "stats", CTLTYPE_STRUCT }, \
80 }
81
82 #ifdef _KERNEL
83 extern struct icmpstat icmpstat;
84
85 #ifdef __NO_STRICT_ALIGNMENT
86 #define ICMP_HDR_ALIGNED_P(ic) 1
87 #else
88 #define ICMP_HDR_ALIGNED_P(ic) ((((vaddr_t) (ic)) & 3) == 0)
89 #endif
90 #endif /* _KERNEL_ */
91
92 #endif /* !_NETINET_ICMP_VAR_H_ */
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