1 /* $NetBSD: icmp.c,v 1.3 2000/01/13 12:39:04 ad Exp $ */ 2 3 /* 4 * Copyright (c) 1999 Andy Doran <ad@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 1.3 2000/01/13 12:39:04 ad Exp $"); 33 #endif /* not lint */ 34 35 #include <sys/param.h> 36 #include <sys/types.h> 37 #include <sys/socket.h> 38 #include <sys/sysctl.h> 39 40 #include <netinet/in.h> 41 #include <netinet/in_systm.h> 42 #include <netinet/ip.h> 43 #include <netinet/ip_icmp.h> 44 #include <netinet/icmp_var.h> 45 46 #include <stdlib.h> 47 #include <string.h> 48 #include <paths.h> 49 #include <nlist.h> 50 #include <kvm.h> 51 52 #include "systat.h" 53 #include "extern.h" 54 55 #define LHD(row, str) mvwprintw(wnd, row, 10, str) 56 #define RHD(row, str) mvwprintw(wnd, row, 45, str); 57 #define BD(row, str) LHD(row, str); RHD(row, str) 58 #define SHOW(stat, row, col) \ 59 mvwprintw(wnd, row, col, "%9llu", (unsigned long long)stats.stat) 60 #define SHOW2(type, row) SHOW(icps_inhist[type], row, 0); \ 61 SHOW(icps_outhist[type], row, 35) 62 63 static struct icmpstat stats; 64 65 static struct nlist namelist[] = { 66 { "_icmpstat" }, 67 { "" } 68 }; 69 70 WINDOW * 71 openicmp(void) 72 { 73 74 return (subwin(stdscr, LINES-5-1, 0, 5, 0)); 75 } 76 77 void 78 closeicmp(w) 79 WINDOW *w; 80 { 81 82 if (w != NULL) { 83 wclear(w); 84 wrefresh(w); 85 delwin(w); 86 } 87 } 88 89 void 90 labelicmp(void) 91 { 92 93 wmove(wnd, 0, 0); wclrtoeol(wnd); 94 95 mvwprintw(wnd, 1, 0, "------------ ICMP input -------------"); 96 mvwprintw(wnd, 1, 38, "------------- ICMP output -------------"); 97 98 mvwprintw(wnd, 8, 0, "---------- Input histogram ----------"); 99 mvwprintw(wnd, 8, 38, "---------- Output histogram -----------"); 100 101 LHD(3, "with bad code"); 102 LHD(4, "with bad length"); 103 LHD(5, "with bad checksum"); 104 LHD(6, "with insufficient data"); 105 106 RHD(3, "errors generated"); 107 RHD(4, "suppressed - original too short"); 108 RHD(5, "suppressed - original was ICMP"); 109 RHD(6, "responses sent"); 110 111 BD(2, "total messages"); 112 BD(9, "echo response"); 113 BD(10, "echo request"); 114 BD(11, "destination unreachable"); 115 BD(12, "redirect"); 116 BD(13, "time-to-live exceeded"); 117 BD(14, "parameter problem"); 118 LHD(15, "router advertisement"); 119 RHD(15, "router solicitation"); 120 } 121 122 void 123 showicmp(void) 124 { 125 u_long tin, tout; 126 int i; 127 128 for (i = tin = tout = 0; i <= ICMP_MAXTYPE; i++) { 129 tin += stats.icps_inhist[i]; 130 tout += stats.icps_outhist[i]; 131 } 132 133 tin += stats.icps_badcode + stats.icps_badlen + stats.icps_checksum + 134 stats.icps_tooshort; 135 mvwprintw(wnd, 2, 0, "%9lu", tin); 136 mvwprintw(wnd, 2, 35, "%9lu", tout); 137 138 SHOW(icps_badcode, 3, 0); 139 SHOW(icps_badlen, 4, 0); 140 SHOW(icps_checksum, 5, 0); 141 SHOW(icps_tooshort, 6, 0); 142 SHOW(icps_error, 3, 35); 143 SHOW(icps_oldshort, 4, 35); 144 SHOW(icps_oldicmp, 5, 35); 145 SHOW(icps_reflect, 6, 35); 146 147 SHOW2(ICMP_ECHOREPLY, 9); 148 SHOW2(ICMP_ECHO, 10); 149 SHOW2(ICMP_UNREACH, 11); 150 SHOW2(ICMP_REDIRECT, 12); 151 SHOW2(ICMP_TIMXCEED, 13); 152 SHOW2(ICMP_PARAMPROB, 14); 153 SHOW(icps_inhist[ICMP_ROUTERADVERT], 15, 0); 154 SHOW(icps_outhist[ICMP_ROUTERSOLICIT], 15, 35); 155 } 156 157 int 158 initicmp(void) 159 { 160 161 if (namelist[0].n_type == 0) { 162 if (kvm_nlist(kd, namelist)) { 163 nlisterr(namelist); 164 return(0); 165 } 166 if (namelist[0].n_type == 0) { 167 error("No namelist"); 168 return(0); 169 } 170 } 171 172 return (1); 173 } 174 175 void 176 fetchicmp(void) 177 { 178 179 KREAD((void *)namelist[0].n_value, &stats, sizeof(stats)); 180 } 181