1 /* $OpenBSD: icmp_var.h,v 1.15 2017/02/07 22:30:16 jmatthew Exp $ */ 2 /* $NetBSD: icmp_var.h,v 1.8 1995/03/26 20:32:19 jtc Exp $ */ 3 4 /* 5 * Copyright (c) 1982, 1986, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)icmp_var.h 8.1 (Berkeley) 6/10/93 33 */ 34 35 #ifndef _NETINET_ICMP_VAR_H_ 36 #define _NETINET_ICMP_VAR_H_ 37 38 /* 39 * Variables related to this implementation 40 * of the internet control message protocol. 41 */ 42 struct icmpstat { 43 /* statistics related to icmp packets generated */ 44 u_long icps_error; /* # of calls to icmp_error */ 45 u_long icps_toofreq; /* no error because rate limiter */ 46 u_long icps_oldshort; /* no error because old ip too short */ 47 u_long icps_oldicmp; /* no error because old was icmp */ 48 u_long icps_outhist[ICMP_MAXTYPE + 1]; 49 /* statistics related to input messages processed */ 50 u_long icps_badcode; /* icmp_code out of range */ 51 u_long icps_tooshort; /* packet < ICMP_MINLEN */ 52 u_long icps_checksum; /* bad checksum */ 53 u_long icps_badlen; /* calculated bound mismatch */ 54 u_long icps_reflect; /* number of responses */ 55 u_long icps_bmcastecho; /* rejected broadcast icmps */ 56 u_long icps_inhist[ICMP_MAXTYPE + 1]; 57 }; 58 59 /* 60 * Names for ICMP sysctl objects 61 */ 62 #define ICMPCTL_MASKREPL 1 /* allow replies to netmask requests */ 63 #define ICMPCTL_BMCASTECHO 2 /* reply to icmps to broadcast/mcast */ 64 #define ICMPCTL_ERRPPSLIMIT 3 /* ICMP error pps limitation */ 65 #define ICMPCTL_REDIRACCEPT 4 /* Accept redirects from routers */ 66 #define ICMPCTL_REDIRTIMEOUT 5 /* Remove routes added via redirects */ 67 #define ICMPCTL_TSTAMPREPL 6 /* allow replies to timestamp requests */ 68 #define ICMPCTL_STATS 7 /* ICMP statistics */ 69 #define ICMPCTL_MAXID 8 70 71 #define ICMPCTL_NAMES { \ 72 { 0, 0 }, \ 73 { "maskrepl", CTLTYPE_INT }, \ 74 { "bmcastecho", CTLTYPE_INT }, \ 75 { "errppslimit", CTLTYPE_INT }, \ 76 { "rediraccept", CTLTYPE_INT }, \ 77 { "redirtimeout", CTLTYPE_INT }, \ 78 { "tstamprepl", CTLTYPE_INT }, \ 79 { "stats", CTLTYPE_STRUCT } \ 80 } 81 82 #define ICMPCTL_VARS { \ 83 NULL, \ 84 &icmpmaskrepl, \ 85 &icmpbmcastecho, \ 86 &icmperrppslim, \ 87 &icmp_rediraccept, \ 88 NULL, \ 89 &icmptstamprepl, \ 90 NULL \ 91 } 92 93 #ifdef _KERNEL 94 95 #include <sys/percpu.h> 96 97 enum icmpstat_counters { 98 icps_error, 99 icps_toofreq, 100 icps_oldshort, 101 icps_oldicmp, 102 icps_outhist, 103 icps_badcode = icps_outhist + ICMP_MAXTYPE + 1, 104 icps_tooshort, 105 icps_checksum, 106 icps_badlen, 107 icps_reflect, 108 icps_bmcastecho, 109 icps_inhist, 110 icps_ncounters = icps_inhist + ICMP_MAXTYPE + 1 111 }; 112 113 extern struct cpumem *icmpcounters; 114 115 static inline void 116 icmpstat_inc(enum icmpstat_counters c) 117 { 118 counters_inc(icmpcounters, c); 119 } 120 121 #endif /* _KERNEL */ 122 #endif /* _NETINET_ICMP_VAR_H_ */ 123