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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)icmp_var.h 8.1 (Berkeley) 6/10/93 34 * $FreeBSD: src/sys/netinet/icmp_var.h,v 1.15.2.2 2001/12/07 09:23:11 ru Exp $ 35 * $DragonFly: src/sys/netinet/icmp_var.h,v 1.4 2004/09/19 22:32:48 joerg Exp $ 36 */ 37 38 #ifndef _NETINET_ICMP_VAR_H_ 39 #define _NETINET_ICMP_VAR_H_ 40 41 #ifdef _KERNEL 42 #include "opt_icmp_bandlim.h" /* for ICMP_BANDLIM */ 43 #endif 44 45 /* 46 * Variables related to this implementation 47 * of the internet control message protocol. 48 */ 49 struct icmpstat { 50 /* statistics related to icmp packets generated */ 51 u_long icps_error; /* # of calls to icmp_error */ 52 u_long icps_oldshort; /* no error 'cuz old ip too short */ 53 u_long icps_oldicmp; /* no error 'cuz old was icmp */ 54 u_long icps_outhist[ICMP_MAXTYPE + 1]; 55 /* statistics related to input messages processed */ 56 u_long icps_badcode; /* icmp_code out of range */ 57 u_long icps_tooshort; /* packet < ICMP_MINLEN */ 58 u_long icps_checksum; /* bad checksum */ 59 u_long icps_badlen; /* calculated bound mismatch */ 60 u_long icps_reflect; /* number of responses */ 61 u_long icps_inhist[ICMP_MAXTYPE + 1]; 62 u_long icps_bmcastecho; /* b/mcast echo requests dropped */ 63 u_long icps_bmcasttstamp; /* b/mcast tstamp requests dropped */ 64 u_long icps_badaddr; /* bad return address */ 65 u_long icps_noroute; /* no route back */ 66 }; 67 68 /* 69 * Names for ICMP sysctl objects 70 */ 71 #define ICMPCTL_MASKREPL 1 /* allow replies to netmask requests */ 72 #define ICMPCTL_STATS 2 /* statistics (read-only) */ 73 #define ICMPCTL_ICMPLIM 3 74 #define ICMPCTL_MAXID 4 75 76 #define ICMPCTL_NAMES { \ 77 { 0, 0 }, \ 78 { "maskrepl", CTLTYPE_INT }, \ 79 { "stats", CTLTYPE_STRUCT }, \ 80 { "icmplim", CTLTYPE_INT }, \ 81 } 82 83 #ifdef _KERNEL 84 SYSCTL_DECL(_net_inet_icmp); 85 extern struct icmpstat icmpstat; /* icmp statistics */ 86 #ifdef ICMP_BANDLIM 87 extern int badport_bandlim (int); 88 #endif 89 #define BANDLIM_UNLIMITED -1 90 #define BANDLIM_ICMP_UNREACH 0 91 #define BANDLIM_ICMP_ECHO 1 92 #define BANDLIM_ICMP_TSTAMP 2 93 #define BANDLIM_RST_CLOSEDPORT 3 /* No connection, and no listeners */ 94 #define BANDLIM_RST_OPENPORT 4 /* No connection, listener */ 95 #define BANDLIM_MAX 4 96 #endif 97 98 #endif 99