1 /* 2 * Copyright (c) 1982, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)icmp_var.h 8.1 (Berkeley) 6/10/93 30 * $FreeBSD: src/sys/netinet/icmp_var.h,v 1.15.2.2 2001/12/07 09:23:11 ru Exp $ 31 * $DragonFly: src/sys/netinet/icmp_var.h,v 1.6 2006/05/20 02:42:12 dillon Exp $ 32 */ 33 34 #ifndef _NETINET_ICMP_VAR_H_ 35 #define _NETINET_ICMP_VAR_H_ 36 37 #ifndef _SYS_TYPES_H_ 38 #include <sys/types.h> 39 #endif 40 #ifndef _SYS_SYSCTL_H_ 41 #include <sys/sysctl.h> 42 #endif 43 #ifndef _NETINET_IP_ICMP_H_ 44 #include <netinet/ip_icmp.h> 45 #endif 46 47 #ifdef _KERNEL 48 #include "opt_icmp_bandlim.h" /* for ICMP_BANDLIM */ 49 #endif 50 51 /* 52 * Variables related to this implementation 53 * of the internet control message protocol. 54 */ 55 struct icmpstat { 56 /* statistics related to icmp packets generated */ 57 u_long icps_error; /* # of calls to icmp_error */ 58 u_long icps_oldshort; /* no error 'cuz old ip too short */ 59 u_long icps_oldicmp; /* no error 'cuz old was icmp */ 60 u_long icps_outhist[ICMP_MAXTYPE + 1]; 61 /* statistics related to input messages processed */ 62 u_long icps_badcode; /* icmp_code out of range */ 63 u_long icps_tooshort; /* packet < ICMP_MINLEN */ 64 u_long icps_checksum; /* bad checksum */ 65 u_long icps_badlen; /* calculated bound mismatch */ 66 u_long icps_reflect; /* number of responses */ 67 u_long icps_inhist[ICMP_MAXTYPE + 1]; 68 u_long icps_bmcastecho; /* b/mcast echo requests dropped */ 69 u_long icps_bmcasttstamp; /* b/mcast tstamp requests dropped */ 70 u_long icps_badaddr; /* bad return address */ 71 u_long icps_noroute; /* no route back */ 72 }; 73 74 /* 75 * Names for ICMP sysctl objects 76 */ 77 #define ICMPCTL_MASKREPL 1 /* allow replies to netmask requests */ 78 #define ICMPCTL_STATS 2 /* statistics (read-only) */ 79 #define ICMPCTL_ICMPLIM 3 80 #define ICMPCTL_MAXID 4 81 82 #define ICMPCTL_NAMES { \ 83 { 0, 0 }, \ 84 { "maskrepl", CTLTYPE_INT }, \ 85 { "stats", CTLTYPE_STRUCT }, \ 86 { "icmplim", CTLTYPE_INT }, \ 87 } 88 89 #ifdef _KERNEL 90 SYSCTL_DECL(_net_inet_icmp); 91 extern struct icmpstat icmpstat; /* icmp statistics */ 92 #ifdef ICMP_BANDLIM 93 extern int badport_bandlim (int); 94 #endif 95 #define BANDLIM_UNLIMITED -1 96 #define BANDLIM_ICMP_UNREACH 0 97 #define BANDLIM_ICMP_ECHO 1 98 #define BANDLIM_ICMP_TSTAMP 2 99 #define BANDLIM_RST_CLOSEDPORT 3 /* No connection, and no listeners */ 100 #define BANDLIM_RST_OPENPORT 4 /* No connection, listener */ 101 #define BANDLIM_MAX 4 102 #endif 103 104 #endif 105