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      1 /*	$NetBSD: icmp_var.h,v 1.32 2022/08/29 09:14:02 knakahara 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 
     42 /*
     43  * ICMP stastistics.
     44  * Each counter is an unsigned 64-bit value.
     45  */
     46 #define	ICMP_STAT_ERROR		0	/* # of calls to icmp_error */
     47 #define	ICMP_STAT_OLDSHORT	1	/* no error (old ip too short) */
     48 #define	ICMP_STAT_OLDICMP	2	/* no error (old was icmp) */
     49 #define	ICMP_STAT_BADCODE	3	/* icmp_code out of range */
     50 #define	ICMP_STAT_TOOSHORT	4	/* packet < ICMP_MINLEN */
     51 #define	ICMP_STAT_CHECKSUM	5	/* bad checksum */
     52 #define	ICMP_STAT_BADLEN	6	/* calculated bound mismatch */
     53 #define	ICMP_STAT_REFLECT	7	/* number of responses */
     54 #define	ICMP_STAT_PMTUCHG	8	/* path MTU changes */
     55 #define	ICMP_STAT_BMCASTECHO	9	/* b/mcast echo requests dropped */
     56 #define	ICMP_STAT_BMCASTTSTAMP	10	/* b/mcast tstamp requests dropped */
     57 #define	ICMP_STAT_LAST		16	/* Allow for 5 spare ones */
     58 #define	ICMP_STAT_OUTHIST	ICMP_STAT_LAST
     59 #define	ICMP_STAT_INHIST	(ICMP_STAT_LAST + ICMP_NTYPES)
     60 #define	ICMP_NSTATS		(ICMP_STAT_LAST + 2 * ICMP_NTYPES)
     61 
     62 /*
     63  * Names for ICMP sysctl objects
     64  */
     65 #define	ICMPCTL_MASKREPL	1	/* allow replies to netmask requests */
     66 #if 0	/*obsoleted*/
     67 #define ICMPCTL_ERRRATELIMIT	2	/* error rate limit */
     68 #endif
     69 #define ICMPCTL_RETURNDATABYTES	3	/* # of bytes to include in errors */
     70 #define ICMPCTL_ERRPPSLIMIT	4	/* ICMP error pps limitation */
     71 #define ICMPCTL_REDIRACCEPT	5	/* Accept redirects from routers */
     72 #define ICMPCTL_REDIRTIMEOUT	6	/* Remove routes added via redirects */
     73 #define	ICMPCTL_STATS		7	/* ICMP statistics */
     74 #define ICMPCTL_BMCASTECHO	8	/* allow broad/mult-cast echo */
     75 #define ICMPCTL_DYNAMIC_RT_MSG	9	/* send routing message for RTM_DYNAMIC */
     76 
     77 #ifdef _KERNEL
     78 
     79 void	icmp_statinc(u_int stat);
     80 
     81 #endif /* _KERNEL_ */
     82 
     83 #endif /* !_NETINET_ICMP_VAR_H_ */
     84