bsd/netinet/icmp_var.h

   1 /*
   2  * Copyright (c) 2000-2013 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_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 License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * Copyright (c) 1982, 1986, 1993
  30  *      The Regents of the University of California.  All rights reserved.
  31  *
  32  * Redistribution and use in source and binary forms, with or without
  33  * modification, are permitted provided that the following conditions
  34  * are met:
  35  * 1. Redistributions of source code must retain the above copyright
  36  *    notice, this list of conditions and the following disclaimer.
  37  * 2. Redistributions in binary form must reproduce the above copyright
  38  *    notice, this list of conditions and the following disclaimer in the
  39  *    documentation and/or other materials provided with the distribution.
  40  * 3. All advertising materials mentioning features or use of this software
  41  *    must display the following acknowledgement:
  42  *      This product includes software developed by the University of
  43  *      California, Berkeley and its contributors.
  44  * 4. Neither the name of the University nor the names of its contributors
  45  *    may be used to endorse or promote products derived from this software
  46  *    without specific prior written permission.
  47  *
  48  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  49  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  50  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  51  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  52  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  53  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  54  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  55  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  57  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  58  * SUCH DAMAGE.
  59  *
  60  *      @(#)icmp_var.h  8.1 (Berkeley) 6/10/93
  61  * $FreeBSD: src/sys/netinet/icmp_var.h,v 1.15.2.1 2001/02/24 21:35:18 bmilekic Exp $
  62  */
  63
  64 #ifndef _NETINET_ICMP_VAR_H_
  65 #define _NETINET_ICMP_VAR_H_
  66 #include <sys/appleapiopts.h>
  67
  68 /*
  69  * Variables related to this implementation
  70  * of the internet control message protocol.
  71  */
  72 struct  icmpstat {
  73 /* statistics related to icmp packets generated */
  74         u_int32_t       icps_error;     /* # of calls to icmp_error */
  75         u_int32_t       icps_oldshort;  /* no error 'cuz old ip too short */
  76         u_int32_t       icps_oldicmp;   /* no error 'cuz old was icmp */
  77         u_int32_t       icps_outhist[ICMP_MAXTYPE + 1];
  78 /* statistics related to input messages processed */
  79         u_int32_t       icps_badcode;   /* icmp_code out of range */
  80         u_int32_t       icps_tooshort;  /* packet < ICMP_MINLEN */
  81         u_int32_t       icps_checksum;  /* bad checksum */
  82         u_int32_t       icps_badlen;    /* calculated bound mismatch */
  83         u_int32_t       icps_reflect;   /* number of responses */
  84         u_int32_t       icps_inhist[ICMP_MAXTYPE + 1];
  85         u_int32_t       icps_bmcastecho;/* b/mcast echo requests dropped */
  86         u_int32_t       icps_bmcasttstamp; /* b/mcast tstamp requests dropped */
  87 };
  88
  89 /*
  90  * Names for ICMP sysctl objects
  91  */
  92 #define ICMPCTL_MASKREPL        1       /* allow replies to netmask requests */
  93 #define ICMPCTL_STATS           2       /* statistics (read-only) */
  94 #define ICMPCTL_ICMPLIM         3
  95 #define ICMPCTL_TIMESTAMP       4       /* allow replies to time stamp requests */
  96 #define ICMPCTL_MAXID           5
  97
  98 #ifdef BSD_KERNEL_PRIVATE
  99 #define ICMPCTL_NAMES { \
 100         { 0, 0 }, \
 101         { "maskrepl", CTLTYPE_INT }, \
 102         { "stats", CTLTYPE_STRUCT }, \
 103         { "icmplim", CTLTYPE_INT }, \
 104         { "icmptimestamp", CTLTYPE_INT }, \
 105 }
 106
 107 SYSCTL_DECL(_net_inet_icmp);
 108 #ifdef ICMP_BANDLIM
 109 extern int badport_bandlim(int);
 110 #endif
 111 #define BANDLIM_UNLIMITED -1
 112 #define BANDLIM_ICMP_UNREACH 0
 113 #define BANDLIM_ICMP_ECHO 1
 114 #define BANDLIM_ICMP_TSTAMP 2
 115 #define BANDLIM_RST_CLOSEDPORT 3 /* No connection, and no listeners */
 116 #define BANDLIM_RST_OPENPORT 4   /* No connection, listener */
 117 #define BANDLIM_MAX 4
 118
 119 extern struct   icmpstat icmpstat;
 120 #endif /* BSD_KERNEL_PRIVATE */
 121 #endif /* _NETINET_ICMP_VAR_H_ */