1 /* $NetBSD: icmp.c,v 1.13 2014/06/03 22:22:41 joerg Exp $ */ 2 3 /* 4 * Copyright (c) 1999, 2000 Andrew Doran <ad (at) NetBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 */ 29 30 #include <sys/cdefs.h> 31 #ifndef lint 32 __RCSID("$NetBSD: icmp.c,v 1.13 2014/06/03 22:22:41 joerg Exp $"); 33 #endif /* not lint */ 34 35 #include <sys/param.h> 36 #include <sys/sysctl.h> 37 38 #include <netinet/in.h> 39 #include <netinet/in_systm.h> 40 #include <netinet/ip.h> 41 #include <netinet/ip_icmp.h> 42 #include <netinet/icmp_var.h> 43 44 #include <string.h> 45 46 #include "systat.h" 47 #include "extern.h" 48 49 #define LHD(row, str) mvwprintw(wnd, row, 10, str) 50 #define RHD(row, str) mvwprintw(wnd, row, 45, str); 51 #define BD(row, str) LHD(row, str); RHD(row, str) 52 #define SHOW(stat, row, col) \ 53 mvwprintw(wnd, row, col, "%9llu", (unsigned long long)curstat[stat]) 54 #define SHOW2(type, row) SHOW(ICMP_STAT_INHIST + type, row, 0); \ 55 SHOW(ICMP_STAT_OUTHIST + type, row, 35) 56 57 enum update { 58 UPDATE_TIME, 59 UPDATE_BOOT, 60 UPDATE_RUN, 61 }; 62 63 static enum update update = UPDATE_TIME; 64 static uint64_t curstat[ICMP_NSTATS]; 65 static uint64_t newstat[ICMP_NSTATS]; 66 static uint64_t oldstat[ICMP_NSTATS]; 67 68 WINDOW * 69 openicmp(void) 70 { 71 72 return (subwin(stdscr, -1, 0, 5, 0)); 73 } 74 75 void 76 closeicmp(WINDOW *w) 77 { 78 79 if (w != NULL) { 80 wclear(w); 81 wrefresh(w); 82 delwin(w); 83 } 84 } 85 86 void 87 labelicmp(void) 88 { 89 90 wmove(wnd, 0, 0); wclrtoeol(wnd); 91 92 mvwprintw(wnd, 1, 0, "------------ ICMP input -----------"); 93 mvwprintw(wnd, 1, 36, "------------- ICMP output ---------------"); 94 95 mvwprintw(wnd, 8, 0, "---------- Input histogram --------"); 96 mvwprintw(wnd, 8, 36, "---------- Output histogram -------------"); 97 98 LHD(3, "with bad code"); 99 LHD(4, "with bad length"); 100 LHD(5, "with bad checksum"); 101 LHD(6, "with insufficient data"); 102 103 RHD(3, "errors generated"); 104 RHD(4, "suppressed - original too short"); 105 RHD(5, "suppressed - original was ICMP"); 106 RHD(6, "responses sent"); 107 108 BD(2, "total messages"); 109 BD(9, "echo response"); 110 BD(10, "echo request"); 111 BD(11, "destination unreachable"); 112 BD(12, "redirect"); 113 BD(13, "time-to-live exceeded"); 114 BD(14, "parameter problem"); 115 LHD(15, "router advertisement"); 116 RHD(15, "router solicitation"); 117 } 118 119 void 120 showicmp(void) 121 { 122 u_long tin, tout; 123 int i; 124 125 for (i = tin = tout = 0; i <= ICMP_MAXTYPE; i++) { 126 tin += curstat[ICMP_STAT_INHIST + i]; 127 tout += curstat[ICMP_STAT_OUTHIST + i]; 128 } 129 130 tin += curstat[ICMP_STAT_BADCODE] + curstat[ICMP_STAT_BADLEN] + 131 curstat[ICMP_STAT_CHECKSUM] + curstat[ICMP_STAT_TOOSHORT]; 132 mvwprintw(wnd, 2, 0, "%9lu", tin); 133 mvwprintw(wnd, 2, 35, "%9lu", tout); 134 135 SHOW(ICMP_STAT_BADCODE, 3, 0); 136 SHOW(ICMP_STAT_BADLEN, 4, 0); 137 SHOW(ICMP_STAT_CHECKSUM, 5, 0); 138 SHOW(ICMP_STAT_TOOSHORT, 6, 0); 139 SHOW(ICMP_STAT_ERROR, 3, 35); 140 SHOW(ICMP_STAT_OLDSHORT, 4, 35); 141 SHOW(ICMP_STAT_OLDICMP, 5, 35); 142 SHOW(ICMP_STAT_REFLECT, 6, 35); 143 144 SHOW2(ICMP_ECHOREPLY, 9); 145 SHOW2(ICMP_ECHO, 10); 146 SHOW2(ICMP_UNREACH, 11); 147 SHOW2(ICMP_REDIRECT, 12); 148 SHOW2(ICMP_TIMXCEED, 13); 149 SHOW2(ICMP_PARAMPROB, 14); 150 SHOW(ICMP_STAT_INHIST + ICMP_ROUTERADVERT, 15, 0); 151 SHOW(ICMP_STAT_OUTHIST + ICMP_ROUTERSOLICIT, 15, 35); 152 } 153 154 int 155 initicmp(void) 156 { 157 158 return (1); 159 } 160 161 void 162 fetchicmp(void) 163 { 164 size_t i, size = sizeof(newstat); 165 166 if (sysctlbyname("net.inet.icmp.stats", newstat, &size, NULL, 0) == -1) 167 return; 168 169 xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_BADCODE); 170 xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_BADLEN); 171 xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_CHECKSUM); 172 xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_TOOSHORT); 173 xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_ERROR); 174 xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_OLDSHORT); 175 xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_OLDICMP); 176 xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_REFLECT); 177 178 for (i = 0; i <= ICMP_MAXTYPE; i++) { 179 xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_INHIST + i); 180 xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_OUTHIST + i); 181 } 182 183 if (update == UPDATE_TIME) 184 memcpy(oldstat, newstat, sizeof(oldstat)); 185 } 186 187 void 188 icmp_boot(char *args) 189 { 190 191 memset(oldstat, 0, sizeof(oldstat)); 192 update = UPDATE_BOOT; 193 } 194 195 void 196 icmp_run(char *args) 197 { 198 199 if (update != UPDATE_RUN) { 200 memcpy(oldstat, newstat, sizeof(oldstat)); 201 update = UPDATE_RUN; 202 } 203 } 204 205 void 206 icmp_time(char *args) 207 { 208 209 if (update != UPDATE_TIME) { 210 memcpy(oldstat, newstat, sizeof(oldstat)); 211 update = UPDATE_TIME; 212 } 213 } 214 215 void 216 icmp_zero(char *args) 217 { 218 219 if (update == UPDATE_RUN) 220 memcpy(oldstat, newstat, sizeof(oldstat)); 221 } 222
Indexes created Mon Sep 22 13:09:51 GMT 2025