usr.bin/systat/icmp6.c

   1 /*-
   2  * Copyright (c) 1980, 1992, 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. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * @(#)mbufs.c     8.1 (Berkeley) 6/6/93
  30  * $FreeBSD: src/usr.bin/systat/icmp6.c,v 1.3 2006/04/30 04:47:23 bde Exp $
  31  */
  32
  33 #ifdef INET6
  34 #include <sys/param.h>
  35 #include <sys/types.h>
  36 #include <sys/socket.h>
  37 #include <sys/sysctl.h>
  38
  39 #include <netinet/in.h>
  40 #include <netinet/icmp6.h>
  41
  42 #include <stdlib.h>
  43 #include <string.h>
  44 #include <paths.h>
  45 #include "systat.h"
  46 #include "extern.h"
  47 #include "mode.h"
  48
  49 static struct icmp6stat icmp6stat, initstat, oldstat;
  50
  51 /*-
  52 --0         1         2         3         4         5         6         7
  53 --0123456789012345678901234567890123456789012345678901234567890123456789012345
  54 00          ICMPv6 Input                       ICMPv6 Output
  55 01999999999 total messages           999999999 total messages
  56 02999999999 with bad code            999999999 errors generated
  57 03999999999 with bad length          999999999 suppressed - original too short
  58 04999999999 with bad checksum        999999999 suppressed - original was ICMP
  59 05999999999 with insufficient data   999999999 responses sent
  60 06
  61 07          Input Histogram                    Output Histogram
  62 08999999999 echo response            999999999 echo response
  63 09999999999 echo request             999999999 echo request
  64 10999999999 destination unreachable  999999999 destination unreachable
  65 11999999999 redirect                 999999999 redirect
  66 12999999999 time-to-live exceeded    999999999 time-to-line exceeded
  67 13999999999 parameter problem        999999999 parameter problem
  68 14999999999 neighbor solicitation    999999999 neighbor solicitation
  69 15999999999 neighbor advertisment    999999999 neighbor advertisment
  70 16999999999 router advertisement     999999999 router solicitation
  71 17
  72 18
  73 --0123456789012345678901234567890123456789012345678901234567890123456789012345
  74 --0         1         2         3         4         5         6         7
  75 */
  76
  77 WINDOW *
  78 openicmp6(void)
  79 {
  80         return (subwin(stdscr, LINES-4-1, 0, 4, 0));
  81 }
  82
  83 void
  84 closeicmp6(WINDOW *w)
  85 {
  86         if (w == NULL)
  87                 return;
  88         wclear(w);
  89         wrefresh(w);
  90         delwin(w);
  91 }
  92
  93 void
  94 labelicmp6(void)
  95 {
  96         wmove(wnd, 0, 0); wclrtoeol(wnd);
  97 #define L(row, str) mvwprintw(wnd, row, 10, str)
  98 #define R(row, str) mvwprintw(wnd, row, 45, str);
  99         L(1, "ICMPv6 Input");           R(1, "ICMPv6 Output");
 100         L(2, "total messages");         R(2, "total messages");
 101         L(3, "with bad code");          R(3, "errors generated");
 102         L(4, "with bad length");        R(4, "suppressed - original too short");
 103         L(5, "with bad checksum");      R(5, "suppressed - original was ICMP");
 104         L(6, "with insufficient data"); R(6, "responses sent");
 105
 106         L(8, "Input Histogram");        R(8, "Output Histogram");
 107 #define B(row, str) L(row, str); R(row, str)
 108         B(9, "echo response");
 109         B(10, "echo request");
 110         B(11, "destination unreachable");
 111         B(12, "redirect");
 112         B(13, "time-to-live exceeded");
 113         B(14, "parameter problem");
 114         B(15, "neighbor solicitation");
 115         B(16, "neighbor advertisement");
 116         L(17, "router advertisement");  R(17, "router solicitation");
 117 #undef L
 118 #undef R
 119 #undef B
 120 }
 121
 122 static void
 123 domode(struct icmp6stat *ret)
 124 {
 125         const struct icmp6stat *sub;
 126         int i, divisor = 1;
 127
 128         switch(currentmode) {
 129         case display_RATE:
 130                 sub = &oldstat;
 131                 divisor = naptime;
 132                 break;
 133         case display_DELTA:
 134                 sub = &oldstat;
 135                 break;
 136         case display_SINCE:
 137                 sub = &initstat;
 138                 break;
 139         default:
 140                 *ret = icmp6stat;
 141                 return;
 142         }
 143 #define DO(stat) ret->stat = (icmp6stat.stat - sub->stat) / divisor
 144         DO(icp6s_error);
 145         DO(icp6s_tooshort);
 146         DO(icp6s_canterror);
 147         for (i = 0; i <= ICMP6_MAXTYPE; i++) {
 148                 DO(icp6s_outhist[i]);
 149         }
 150         DO(icp6s_badcode);
 151         DO(icp6s_tooshort);
 152         DO(icp6s_checksum);
 153         DO(icp6s_badlen);
 154         DO(icp6s_reflect);
 155         for (i = 0; i <= ICMP6_MAXTYPE; i++) {
 156                 DO(icp6s_inhist[i]);
 157         }
 158 #undef DO
 159 }
 160
 161 void
 162 showicmp6(void)
 163 {
 164         struct icmp6stat stats;
 165         u_long totalin, totalout;
 166         int i;
 167
 168         memset(&stats, 0, sizeof stats);
 169         domode(&stats);
 170         for (i = totalin = totalout = 0; i <= ICMP6_MAXTYPE; i++) {
 171                 totalin += stats.icp6s_inhist[i];
 172                 totalout += stats.icp6s_outhist[i];
 173         }
 174         totalin += stats.icp6s_badcode + stats.icp6s_badlen +
 175                 stats.icp6s_checksum + stats.icp6s_tooshort;
 176         mvwprintw(wnd, 2, 0, "%9lu", totalin);
 177         mvwprintw(wnd, 2, 35, "%9lu", totalout);
 178
 179 #define DO(stat, row, col) \
 180         mvwprintw(wnd, row, col, "%9lu", stats.stat)
 181
 182         DO(icp6s_badcode, 3, 0);
 183         DO(icp6s_badlen, 4, 0);
 184         DO(icp6s_checksum, 5, 0);
 185         DO(icp6s_tooshort, 6, 0);
 186         DO(icp6s_error, 3, 35);
 187         DO(icp6s_tooshort, 4, 35);
 188         DO(icp6s_canterror, 5, 35);
 189         DO(icp6s_reflect, 6, 35);
 190 #define DO2(type, row) DO(icp6s_inhist[type], row, 0); DO(icp6s_outhist[type], \
 191                                                          row, 35)
 192         DO2(ICMP6_ECHO_REPLY, 9);
 193         DO2(ICMP6_ECHO_REQUEST, 10);
 194         DO2(ICMP6_DST_UNREACH, 11);
 195         DO2(ND_REDIRECT, 12);
 196         DO2(ICMP6_TIME_EXCEEDED, 13);
 197         DO2(ICMP6_PARAM_PROB, 14);
 198         DO2(ND_NEIGHBOR_SOLICIT, 15);
 199         DO2(ND_NEIGHBOR_ADVERT, 16);
 200         DO(icp6s_inhist[ND_ROUTER_SOLICIT], 17, 0);
 201         DO(icp6s_outhist[ND_ROUTER_ADVERT], 17, 35);
 202 #undef DO
 203 #undef DO2
 204 }
 205
 206 int
 207 initicmp6(void)
 208 {
 209         size_t len;
 210         int name[4];
 211
 212         name[0] = CTL_NET;
 213         name[1] = PF_INET6;
 214         name[2] = IPPROTO_ICMPV6;
 215         name[3] = ICMPV6CTL_STATS;
 216
 217         len = 0;
 218         if (sysctl(name, 4, 0, &len, 0, 0) < 0) {
 219                 error("sysctl getting icmp6stat size failed");
 220                 return 0;
 221         }
 222         if (len > sizeof icmp6stat) {
 223                 error("icmp6stat structure has grown--recompile systat!");
 224                 return 0;
 225         }
 226         if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
 227                 error("sysctl getting icmp6stat size failed");
 228                 return 0;
 229         }
 230         oldstat = initstat;
 231         return 1;
 232 }
 233
 234 void
 235 reseticmp6(void)
 236 {
 237         size_t len;
 238         int name[4];
 239
 240         name[0] = CTL_NET;
 241         name[1] = PF_INET6;
 242         name[2] = IPPROTO_ICMPV6;
 243         name[3] = ICMPV6CTL_STATS;
 244
 245         len = sizeof initstat;
 246         if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
 247                 error("sysctl getting icmp6stat size failed");
 248         }
 249         oldstat = initstat;
 250 }
 251
 252 void
 253 fetchicmp6(void)
 254 {
 255         int name[4];
 256         size_t len;
 257
 258         oldstat = icmp6stat;
 259         name[0] = CTL_NET;
 260         name[1] = PF_INET6;
 261         name[2] = IPPROTO_ICMPV6;
 262         name[3] = ICMPV6CTL_STATS;
 263         len = sizeof icmp6stat;
 264
 265         if (sysctl(name, 4, &icmp6stat, &len, 0, 0) < 0)
 266                 return;
 267 }
 268
 269 #endif