1 /* $NetBSD: icmp.c,v 1.8 2005/02/26 22:12:33 dsl Exp $ */ 2 3 /* 4 * Copyright (c) 1999, 2000 Andrew 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 1.8 2005/02/26 22:12:33 dsl Exp $"); 33 #endif /* not lint */ 34 35 #include <sys/param.h> 36 37 #include <netinet/in.h> 38 #include <netinet/in_systm.h> 39 #include <netinet/ip.h> 40 #include <netinet/ip_icmp.h> 41 #include <netinet/icmp_var.h> 42 43 #include <string.h> 44 45 #include "systat.h" 46 #include "extern.h" 47 48 #define LHD(row, str) mvwprintw(wnd, row, 10, str) 49 #define RHD(row, str) mvwprintw(wnd, row, 45, str); 50 #define BD(row, str) LHD(row, str); RHD(row, str) 51 #define SHOW(stat, row, col) \ 52 mvwprintw(wnd, row, col, "%9llu", (unsigned long long)curstat.stat) 53 #define SHOW2(type, row) SHOW(icps_inhist[type], row, 0); \ 54 SHOW(icps_outhist[type], row, 35) 55 56 enum update { 57 UPDATE_TIME, 58 UPDATE_BOOT, 59 UPDATE_RUN, 60 }; 61 62 static enum update update = UPDATE_TIME; 63 static struct icmpstat curstat; 64 static struct icmpstat newstat; 65 static struct icmpstat oldstat; 66 67 static struct nlist namelist[] = { 68 { "_icmpstat" }, 69 { "" } 70 }; 71 72 WINDOW * 73 openicmp(void) 74 { 75 76 return (subwin(stdscr, -1, 0, 5, 0)); 77 } 78 79 void 80 closeicmp(WINDOW *w) 81 { 82 83 if (w != NULL) { 84 wclear(w); 85 wrefresh(w); 86 delwin(w); 87 } 88 } 89 90 void 91 labelicmp(void) 92 { 93 94 wmove(wnd, 0, 0); wclrtoeol(wnd); 95 96 mvwprintw(wnd, 1, 0, "------------ ICMP input -----------"); 97 mvwprintw(wnd, 1, 36, "------------- ICMP output ---------------"); 98 99 mvwprintw(wnd, 8, 0, "---------- Input histogram --------"); 100 mvwprintw(wnd, 8, 36, "---------- Output histogram -------------"); 101 102 LHD(3, "with bad code"); 103 LHD(4, "with bad length"); 104 LHD(5, "with bad checksum"); 105 LHD(6, "with insufficient data"); 106 107 RHD(3, "errors generated"); 108 RHD(4, "suppressed - original too short"); 109 RHD(5, "suppressed - original was ICMP"); 110 RHD(6, "responses sent"); 111 112 BD(2, "total messages"); 113 BD(9, "echo response"); 114 BD(10, "echo request"); 115 BD(11, "destination unreachable"); 116 BD(12, "redirect"); 117 BD(13, "time-to-live exceeded"); 118 BD(14, "parameter problem"); 119 LHD(15, "router advertisement"); 120 RHD(15, "router solicitation"); 121 } 122 123 void 124 showicmp(void) 125 { 126 u_long tin, tout; 127 int i; 128 129 for (i = tin = tout = 0; i <= ICMP_MAXTYPE; i++) { 130 tin += curstat.icps_inhist[i]; 131 tout += curstat.icps_outhist[i]; 132 } 133 134 tin += curstat.icps_badcode + curstat.icps_badlen + 135 curstat.icps_checksum + curstat.icps_tooshort; 136 mvwprintw(wnd, 2, 0, "%9lu", tin); 137 mvwprintw(wnd, 2, 35, "%9lu", tout); 138 139 SHOW(icps_badcode, 3, 0); 140 SHOW(icps_badlen, 4, 0); 141 SHOW(icps_checksum, 5, 0); 142 SHOW(icps_tooshort, 6, 0); 143 SHOW(icps_error, 3, 35); 144 SHOW(icps_oldshort, 4, 35); 145 SHOW(icps_oldicmp, 5, 35); 146 SHOW(icps_reflect, 6, 35); 147 148 SHOW2(ICMP_ECHOREPLY, 9); 149 SHOW2(ICMP_ECHO, 10); 150 SHOW2(ICMP_UNREACH, 11); 151 SHOW2(ICMP_REDIRECT, 12); 152 SHOW2(ICMP_TIMXCEED, 13); 153 SHOW2(ICMP_PARAMPROB, 14); 154 SHOW(icps_inhist[ICMP_ROUTERADVERT], 15, 0); 155 SHOW(icps_outhist[ICMP_ROUTERSOLICIT], 15, 35); 156 } 157 158 int 159 initicmp(void) 160 { 161 162 if (namelist[0].n_type == 0) { 163 if (kvm_nlist(kd, namelist)) { 164 nlisterr(namelist); 165 return(0); 166 } 167 if (namelist[0].n_type == 0) { 168 error("No namelist"); 169 return(0); 170 } 171 } 172 173 return (1); 174 } 175 176 void 177 fetchicmp(void) 178 { 179 int i; 180 181 KREAD((void *)namelist[0].n_value, &newstat, sizeof(newstat)); 182 183 ADJINETCTR(curstat, oldstat, newstat, icps_badcode); 184 ADJINETCTR(curstat, oldstat, newstat, icps_badlen); 185 ADJINETCTR(curstat, oldstat, newstat, icps_checksum); 186 ADJINETCTR(curstat, oldstat, newstat, icps_tooshort); 187 ADJINETCTR(curstat, oldstat, newstat, icps_error); 188 ADJINETCTR(curstat, oldstat, newstat, icps_oldshort); 189 ADJINETCTR(curstat, oldstat, newstat, icps_oldicmp); 190 ADJINETCTR(curstat, oldstat, newstat, icps_reflect); 191 192 for (i = 0; i <= ICMP_MAXTYPE; i++) { 193 ADJINETCTR(curstat, oldstat, newstat, icps_inhist[i]); 194 ADJINETCTR(curstat, oldstat, newstat, icps_outhist[i]); 195 } 196 197 if (update == UPDATE_TIME) 198 memcpy(&oldstat, &newstat, sizeof(oldstat)); 199 } 200 201 void 202 icmp_boot(char *args) 203 { 204 205 memset(&oldstat, 0, sizeof(oldstat)); 206 update = UPDATE_BOOT; 207 } 208 209 void 210 icmp_run(char *args) 211 { 212 213 if (update != UPDATE_RUN) { 214 memcpy(&oldstat, &newstat, sizeof(oldstat)); 215 update = UPDATE_RUN; 216 } 217 } 218 219 void 220 icmp_time(char *args) 221 { 222 223 if (update != UPDATE_TIME) { 224 memcpy(&oldstat, &newstat, sizeof(oldstat)); 225 update = UPDATE_TIME; 226 } 227 } 228 229 void 230 icmp_zero(char *args) 231 { 232 233 if (update == UPDATE_RUN) 234 memcpy(&oldstat, &newstat, sizeof(oldstat)); 235 } 236