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 1.21 2002/03/19 21:25:46 alfred Exp $ 35 */ 36 37 #ifndef _NETINET_ICMP_VAR_H_ 38 #define _NETINET_ICMP_VAR_H_ 39 40 41 /* 42 * Variables related to this implementation 43 * of the internet control message protocol. 44 */ 45 struct icmpstat { 46 /* statistics related to icmp packets generated */ 47 u_long icps_error; /* # of calls to icmp_error */ 48 u_long icps_oldshort; /* no error 'cuz old ip too short */ 49 u_long icps_oldicmp; /* no error 'cuz old was icmp */ 50 u_long icps_outhist[ICMP_MAXTYPE + 1]; 51 /* statistics related to input messages processed */ 52 u_long icps_badcode; /* icmp_code out of range */ 53 u_long icps_tooshort; /* packet < ICMP_MINLEN */ 54 u_long icps_checksum; /* bad checksum */ 55 u_long icps_badlen; /* calculated bound mismatch */ 56 u_long icps_reflect; /* number of responses */ 57 u_long icps_inhist[ICMP_MAXTYPE + 1]; 58 u_long icps_bmcastecho; /* b/mcast echo requests dropped */ 59 u_long icps_bmcasttstamp; /* b/mcast tstamp requests dropped */ 60 u_long icps_badaddr; /* bad return address */ 61 u_long icps_noroute; /* no route back */ 62 }; 63 64 /* 65 * Names for ICMP sysctl objects 66 */ 67 #define ICMPCTL_MASKREPL 1 /* allow replies to netmask requests */ 68 #define ICMPCTL_STATS 2 /* statistics (read-only) */ 69 #define ICMPCTL_ICMPLIM 3 70 #define ICMPCTL_MAXID 4 71 72 #define ICMPCTL_NAMES { \ 73 { 0, 0 }, \ 74 { "maskrepl", CTLTYPE_INT }, \ 75 { "stats", CTLTYPE_STRUCT }, \ 76 { "icmplim", CTLTYPE_INT }, \ 77 } 78 79 #ifdef _KERNEL 80 SYSCTL_DECL(_net_inet_icmp); 81 extern int badport_bandlim(int); 82 #define BANDLIM_UNLIMITED -1 83 #define BANDLIM_ICMP_UNREACH 0 84 #define BANDLIM_ICMP_ECHO 1 85 #define BANDLIM_ICMP_TSTAMP 2 86 #define BANDLIM_RST_CLOSEDPORT 3 /* No connection, and no listeners */ 87 #define BANDLIM_RST_OPENPORT 4 /* No connection, listener */ 88 #define BANDLIM_MAX 4 89 #endif 90 91 #endif 92