usr.bin/systat/ip6.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/ip6.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/in_systm.h>
  41 #include <netinet/ip.h>
  42 #include <netinet6/ip6_var.h>
  43
  44 #include <stdlib.h>
  45 #include <string.h>
  46 #include <paths.h>
  47
  48 #include "systat.h"
  49 #include "extern.h"
  50 #include "mode.h"
  51
  52 static struct ip6stat curstat, initstat, oldstat;
  53
  54 /*-
  55 --0         1         2         3         4         5         6         7
  56 --0123456789012345678901234567890123456789012345678901234567890123456789012345
  57 00        IPv6 Input                         IPv6 Output
  58 019999999 total packets received   999999999 total packets sent
  59 029999999 - too short for header   999999999 - generated locally
  60 039999999 - too short for data     999999999 - output drops
  61 049999999 - with invalid version   999999999 output fragments generated
  62 059999999 total fragments received 999999999 - fragmentation failed
  63 069999999 - fragments dropped      999999999 destinations unreachable
  64 079999999 - fragments timed out    999999999 packets output via raw IP
  65 089999999 - fragments overflown
  66 099999999 - packets reassembled ok           Input next-header histogram
  67 109999999 packets forwarded        999999999  - destination options
  68 119999999 - unreachable dests      999999999  - hop-by-hop options
  69 129999999 - redirects generated    999999999  - IPv4
  70 139999999 option errors            999999999  - TCP
  71 149999999 unwanted multicasts      999999999  - UDP
  72 159999999 delivered to upper layer 999999999  - IPv6
  73 169999999 bad scope packets        999999999  - routing header
  74 179999999 address selection failed 999999999  - fragmentation header
  75 18                                 999999999  - ICMP6
  76 19                                 999999999  - none
  77 --0123456789012345678901234567890123456789012345678901234567890123456789012345
  78 --0         1         2         3         4         5         6         7
  79 */
  80
  81 WINDOW *
  82 openip6(void)
  83 {
  84         return (subwin(stdscr, LINES-4-1, 0, 4, 0));
  85 }
  86
  87 void
  88 closeip6(WINDOW *w)
  89 {
  90         if (w == NULL)
  91                 return;
  92         wclear(w);
  93         wrefresh(w);
  94         delwin(w);
  95 }
  96
  97 void
  98 labelip6(void)
  99 {
 100         wmove(wnd, 0, 0); wclrtoeol(wnd);
 101 #define L(row, str) mvwprintw(wnd, row, 10, str)
 102 #define R(row, str) mvwprintw(wnd, row, 45, str);
 103         L(1, "IPv6 Input");             R(1, "IPv6 Output");
 104         L(2, "total packets received"); R(2, "total packets sent");
 105         L(3, "- too short for header"); R(3, "- generated locally");
 106         L(4, "- too short for data");   R(4, "- output drops");
 107         L(5, "- with invalid version"); R(5, "output fragments generated");
 108         L(6, "total fragments received"); R(6, "- fragmentation failed");
 109         L(7, "- fragments dropped");    R(7, "destinations unreachable");
 110         L(8, "- fragments timed out");  R(8, "packets output via raw IP");
 111         L(9, "- fragments overflown");
 112         L(10, "- packets reassembled ok"); R(10, "Input next-header histogram");
 113         L(11, "packets forwarded");     R(11, " - destination options");
 114         L(12, "- unreachable dests");   R(12, " - hop-by-hop options");
 115         L(13, "- redirects generated"); R(13, " - IPv4");
 116         L(14, "option errors");         R(14, " - TCP");
 117         L(15, "unwanted multicasts");   R(15, " - UDP");
 118         L(16, "delivered to upper layer"); R(16, " - IPv6");
 119         L(17, "bad scope packets");     R(17, " - routing header");
 120         L(18, "address selection failed"); R(18, " - fragmentation header");
 121                                         R(19, " - ICMP6");
 122                                         R(20, " - none");
 123 #undef L
 124 #undef R
 125 }
 126
 127 static void
 128 domode(struct ip6stat *ret)
 129 {
 130         const struct ip6stat *sub;
 131         int divisor = 1, i;
 132
 133         switch(currentmode) {
 134         case display_RATE:
 135                 sub = &oldstat;
 136                 divisor = naptime;
 137                 break;
 138         case display_DELTA:
 139                 sub = &oldstat;
 140                 break;
 141         case display_SINCE:
 142                 sub = &initstat;
 143                 break;
 144         default:
 145                 *ret = curstat;
 146                 return;
 147         }
 148 #define DO(stat) ret->stat = (curstat.stat - sub->stat) / divisor
 149         DO(ip6s_total);
 150         DO(ip6s_tooshort);
 151         DO(ip6s_toosmall);
 152         DO(ip6s_fragments);
 153         DO(ip6s_fragdropped);
 154         DO(ip6s_fragtimeout);
 155         DO(ip6s_fragoverflow);
 156         DO(ip6s_forward);
 157         DO(ip6s_cantforward);
 158         DO(ip6s_redirectsent);
 159         DO(ip6s_delivered);
 160         DO(ip6s_localout);
 161         DO(ip6s_odropped);
 162         DO(ip6s_reassembled);
 163         DO(ip6s_fragmented);
 164         DO(ip6s_ofragments);
 165         DO(ip6s_cantfrag);
 166         DO(ip6s_badoptions);
 167         DO(ip6s_noroute);
 168         DO(ip6s_badvers);
 169         DO(ip6s_rawout);
 170         DO(ip6s_notmember);
 171         for (i = 0; i < 256; i++)
 172                 DO(ip6s_nxthist[i]);
 173         DO(ip6s_badscope);
 174         DO(ip6s_sources_none);
 175 #undef DO
 176 }
 177
 178 void
 179 showip6(void)
 180 {
 181         struct ip6stat stats;
 182         u_long totalout;
 183
 184         domode(&stats);
 185         totalout = stats.ip6s_forward + stats.ip6s_localout;
 186
 187 #define DO(stat, row, col) \
 188         mvwprintw(wnd, row, col, "%9lu", stats.stat)
 189
 190         DO(ip6s_total, 2, 0);
 191         mvwprintw(wnd, 2, 35, "%9lu", totalout);
 192         DO(ip6s_tooshort, 3, 0);
 193         DO(ip6s_localout, 3, 35);
 194         DO(ip6s_toosmall, 4, 0);
 195         DO(ip6s_odropped, 4, 35);
 196         DO(ip6s_badvers, 5, 0);
 197         DO(ip6s_ofragments, 5, 35);
 198         DO(ip6s_fragments, 6, 0);
 199         DO(ip6s_cantfrag, 6, 35);
 200         DO(ip6s_fragdropped, 7, 0);
 201         DO(ip6s_noroute, 7, 35);
 202         DO(ip6s_fragtimeout, 8, 0);
 203         DO(ip6s_rawout, 8, 35);
 204         DO(ip6s_fragoverflow, 9, 0);
 205         DO(ip6s_reassembled, 10, 0);
 206         DO(ip6s_forward, 11, 0);
 207         DO(ip6s_nxthist[IPPROTO_DSTOPTS], 11, 35);
 208         DO(ip6s_cantforward, 12, 0);
 209         DO(ip6s_nxthist[IPPROTO_HOPOPTS], 12, 35);
 210         DO(ip6s_redirectsent, 13, 0);
 211         DO(ip6s_nxthist[IPPROTO_IPV4], 13, 35);
 212         DO(ip6s_badoptions, 14, 0);
 213         DO(ip6s_nxthist[IPPROTO_TCP], 14, 35);
 214         DO(ip6s_notmember, 15, 0);
 215         DO(ip6s_nxthist[IPPROTO_UDP], 15, 35);
 216         DO(ip6s_delivered, 16, 0);
 217         DO(ip6s_nxthist[IPPROTO_IPV6], 16, 35);
 218         DO(ip6s_badscope, 17, 0);
 219         DO(ip6s_nxthist[IPPROTO_ROUTING], 17, 35);
 220         DO(ip6s_sources_none, 18, 0);
 221         DO(ip6s_nxthist[IPPROTO_FRAGMENT], 18, 35);
 222         DO(ip6s_nxthist[IPPROTO_ICMPV6], 19, 35);
 223         DO(ip6s_nxthist[IPPROTO_NONE], 20, 35);
 224 #undef DO
 225 }
 226
 227 int
 228 initip6(void)
 229 {
 230         size_t len;
 231         int name[4];
 232
 233         name[0] = CTL_NET;
 234         name[1] = PF_INET6;
 235         name[2] = IPPROTO_IPV6;
 236         name[3] = IPV6CTL_STATS;
 237
 238         len = 0;
 239         if (sysctl(name, 4, 0, &len, 0, 0) < 0) {
 240                 error("sysctl getting ip6stat size failed");
 241                 return 0;
 242         }
 243         if (len > sizeof curstat) {
 244                 error("ip6stat structure has grown--recompile systat!");
 245                 return 0;
 246         }
 247         if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
 248                 error("sysctl getting ip6stat failed");
 249                 return 0;
 250         }
 251         oldstat = initstat;
 252         return 1;
 253 }
 254
 255 void
 256 resetip6(void)
 257 {
 258         size_t len;
 259         int name[4];
 260
 261         name[0] = CTL_NET;
 262         name[1] = PF_INET6;
 263         name[2] = IPPROTO_IPV6;
 264         name[3] = IPV6CTL_STATS;
 265
 266         len = sizeof initstat;
 267         if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
 268                 error("sysctl getting ipstat failed");
 269         }
 270
 271         oldstat = initstat;
 272 }
 273
 274 void
 275 fetchip6(void)
 276 {
 277         int name[4];
 278         size_t len;
 279
 280         oldstat = curstat;
 281         name[0] = CTL_NET;
 282         name[1] = PF_INET6;
 283         name[2] = IPPROTO_IPV6;
 284         name[3] = IPV6CTL_STATS;
 285         len = sizeof curstat;
 286
 287         if (sysctl(name, 4, &curstat, &len, 0, 0) < 0)
 288                 return;
 289 }
 290
 291 #endif