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/*

 * Copyright (c) 1982, 1986, 1993

 *      The Regents of the University of California.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 3. All advertising materials mentioning features or use of this software

 *    must display the following acknowledgement:

 *      This product includes software developed by the University of

 *      California, Berkeley and its contributors.

 * 4. Neither the name of the University nor the names of its contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 *

 *      @(#)icmp_var.h  8.1 (Berkeley) 6/10/93

 * $FreeBSD: src/sys/netinet/icmp_var.h,v 1.21 2002/03/19 21:25:46 alfred Exp $

 */

#ifndef _NETINET_ICMP_VAR_H_

#define _NETINET_ICMP_VAR_H_

/*

 * Variables related to this implementation

 * of the internet control message protocol.

 */

struct  icmpstat {

/* statistics related to icmp packets generated */

        u_long  icps_error;             /* # of calls to icmp_error */

        u_long  icps_oldshort;          /* no error 'cuz old ip too short */

        u_long  icps_oldicmp;           /* no error 'cuz old was icmp */

        u_long  icps_outhist[ICMP_MAXTYPE + 1];

/* statistics related to input messages processed */

        u_long  icps_badcode;           /* icmp_code out of range */

        u_long  icps_tooshort;          /* packet < ICMP_MINLEN */

        u_long  icps_checksum;          /* bad checksum */

        u_long  icps_badlen;            /* calculated bound mismatch */

        u_long  icps_reflect;           /* number of responses */

        u_long  icps_inhist[ICMP_MAXTYPE + 1];

        u_long  icps_bmcastecho;        /* b/mcast echo requests dropped */

        u_long  icps_bmcasttstamp;      /* b/mcast tstamp requests dropped */

        u_long  icps_badaddr;           /* bad return address */

        u_long  icps_noroute;           /* no route back */

};

/*

 * Names for ICMP sysctl objects

 */

#define ICMPCTL_MASKREPL        1       /* allow replies to netmask requests */

#define ICMPCTL_STATS           2       /* statistics (read-only) */

#define ICMPCTL_ICMPLIM         3

#define ICMPCTL_MAXID           4

#define ICMPCTL_NAMES { \

        { 0, 0 }, \

        { "maskrepl", CTLTYPE_INT }, \

        { "stats", CTLTYPE_STRUCT }, \

        { "icmplim", CTLTYPE_INT }, \

}

#ifdef _KERNEL

SYSCTL_DECL(_net_inet_icmp);

extern int badport_bandlim(int);

#define BANDLIM_UNLIMITED -1

#define BANDLIM_ICMP_UNREACH 0

#define BANDLIM_ICMP_ECHO 1

#define BANDLIM_ICMP_TSTAMP 2

#define BANDLIM_RST_CLOSEDPORT 3 /* No connection, and no listeners */

#define BANDLIM_RST_OPENPORT 4   /* No connection, listener */

#define BANDLIM_MAX 4

#endif

#endif