bsd/netinet/icmp_var.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License.  The rights granted to you under the
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30 /*
  31  * Copyright (c) 1982, 1986, 1993
  32  *      The Regents of the University of California.  All rights reserved.
  33  *
  34  * Redistribution and use in source and binary forms, with or without
  35  * modification, are permitted provided that the following conditions
  36  * are met:
  37  * 1. Redistributions of source code must retain the above copyright
  38  *    notice, this list of conditions and the following disclaimer.
  39  * 2. Redistributions in binary form must reproduce the above copyright
  40  *    notice, this list of conditions and the following disclaimer in the
  41  *    documentation and/or other materials provided with the distribution.
  42  * 3. All advertising materials mentioning features or use of this software
  43  *    must display the following acknowledgement:
  44  *      This product includes software developed by the University of
  45  *      California, Berkeley and its contributors.
  46  * 4. Neither the name of the University nor the names of its contributors
  47  *    may be used to endorse or promote products derived from this software
  48  *    without specific prior written permission.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  51  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  52  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  53  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  54  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  55  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  56  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  57  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  58  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  59  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  60  * SUCH DAMAGE.
  61  *
  62  *      @(#)icmp_var.h  8.1 (Berkeley) 6/10/93
  63  * $FreeBSD: src/sys/netinet/icmp_var.h,v 1.15.2.1 2001/02/24 21:35:18 bmilekic Exp $
  64  */
  65
  66 #ifndef _NETINET_ICMP_VAR_H_
  67 #define _NETINET_ICMP_VAR_H_
  68 #include <sys/appleapiopts.h>
  69
  70 /*
  71  * Variables related to this implementation
  72  * of the internet control message protocol.
  73  */
  74 struct  icmpstat {
  75 /* statistics related to icmp packets generated */
  76         u_long  icps_error;             /* # of calls to icmp_error */
  77         u_long  icps_oldshort;          /* no error 'cuz old ip too short */
  78         u_long  icps_oldicmp;           /* no error 'cuz old was icmp */
  79         u_long  icps_outhist[ICMP_MAXTYPE + 1];
  80 /* statistics related to input messages processed */
  81         u_long  icps_badcode;           /* icmp_code out of range */
  82         u_long  icps_tooshort;          /* packet < ICMP_MINLEN */
  83         u_long  icps_checksum;          /* bad checksum */
  84         u_long  icps_badlen;            /* calculated bound mismatch */
  85         u_long  icps_reflect;           /* number of responses */
  86         u_long  icps_inhist[ICMP_MAXTYPE + 1];
  87         u_long  icps_bmcastecho;        /* b/mcast echo requests dropped */
  88         u_long  icps_bmcasttstamp;      /* b/mcast tstamp requests dropped */
  89 };
  90
  91 /*
  92  * Names for ICMP sysctl objects
  93  */
  94 #define ICMPCTL_MASKREPL        1       /* allow replies to netmask requests */
  95 #define ICMPCTL_STATS           2       /* statistics (read-only) */
  96 #define ICMPCTL_ICMPLIM         3
  97 #define ICMPCTL_TIMESTAMP       4       /* allow replies to time stamp requests */
  98 #define ICMPCTL_MAXID           5
  99
 100 #ifdef KERNEL_PRIVATE
 101 #define ICMPCTL_NAMES { \
 102         { 0, 0 }, \
 103         { "maskrepl", CTLTYPE_INT }, \
 104         { "stats", CTLTYPE_STRUCT }, \
 105         { "icmplim", CTLTYPE_INT }, \
 106         { "icmptimestamp", CTLTYPE_INT }, \
 107 }
 108
 109 SYSCTL_DECL(_net_inet_icmp);
 110 #ifdef ICMP_BANDLIM
 111 extern int badport_bandlim(int);
 112 #endif
 113 #define BANDLIM_UNLIMITED -1
 114 #define BANDLIM_ICMP_UNREACH 0
 115 #define BANDLIM_ICMP_ECHO 1
 116 #define BANDLIM_ICMP_TSTAMP 2
 117 #define BANDLIM_RST_CLOSEDPORT 3 /* No connection, and no listeners */
 118 #define BANDLIM_RST_OPENPORT 4   /* No connection, listener */
 119 #define BANDLIM_MAX 4
 120 #endif KERNEL_PRIVATE
 121 #endif /* _NETINET_ICMP_VAR_H_ */