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icmp_var.h revision 1.22 
      1 /*	$NetBSD: icmp_var.h,v 1.22 2003/08/07 16:33:08 agc 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_MAXID		7
     69 
     70 #define ICMPCTL_NAMES { \
     71 	{ 0, 0 }, \
     72 	{ "maskrepl", CTLTYPE_INT }, \
     73 	{ 0, 0 }, \
     74 	{ "returndatabytes", CTLTYPE_INT }, \
     75 	{ "errppslimit", CTLTYPE_INT }, \
     76 	{ "rediraccept", CTLTYPE_INT }, \
     77 	{ "redirtimeout", CTLTYPE_INT }, \
     78 }
     79 
     80 #ifdef _KERNEL
     81 struct	icmpstat icmpstat;
     82 
     83 #ifdef __NO_STRICT_ALIGNMENT
     84 #define	ICMP_HDR_ALIGNED_P(ic)	1
     85 #else
     86 #define	ICMP_HDR_ALIGNED_P(ic)	((((vaddr_t) (ic)) & 3) == 0)
     87 #endif
     88 #endif /* _KERNEL_ */
     89 
     90 #endif /* _NETINET_ICMP_VAR_H_ */
     91