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. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  * @(#)mbufs.c  8.1 (Berkeley) 6/6/93
  34  * $FreeBSD: src/usr.bin/systat/ip6.c,v 1.3 2006/04/30 04:47:23 bde Exp $
  35  * $DragonFly: src/usr.bin/systat/ip6.c,v 1.2 2008/10/16 01:52:33 swildner Exp $
  36  */
  37
  38 #include <sys/cdefs.h>
  39
  40 #ifdef INET6
  41 #include <sys/param.h>
  42 #include <sys/types.h>
  43 #include <sys/socket.h>
  44 #include <sys/sysctl.h>
  45
  46 #include <netinet/in.h>
  47 #include <netinet/in_systm.h>
  48 #include <netinet/ip.h>
  49 #include <netinet6/ip6_var.h>
  50
  51 #include <stdlib.h>
  52 #include <string.h>
  53 #include <paths.h>
  54
  55 #include "systat.h"
  56 #include "extern.h"
  57 #include "mode.h"
  58
  59 static struct ip6stat curstat, initstat, oldstat;
  60
  61 /*-
  62 --0         1         2         3         4         5         6         7
  63 --0123456789012345678901234567890123456789012345678901234567890123456789012345
  64 00        IPv6 Input                         IPv6 Output
  65 019999999 total packets received   999999999 total packets sent
  66 029999999 - too short for header   999999999 - generated locally
  67 039999999 - too short for data     999999999 - output drops
  68 049999999 - with invalid version   999999999 output fragments generated
  69 059999999 total fragments received 999999999 - fragmentation failed
  70 069999999 - fragments dropped      999999999 destinations unreachable
  71 079999999 - fragments timed out    999999999 packets output via raw IP
  72 089999999 - fragments overflown
  73 099999999 - packets reassembled ok           Input next-header histogram
  74 109999999 packets forwarded        999999999  - destination options
  75 119999999 - unreachable dests      999999999  - hop-by-hop options
  76 129999999 - redirects generated    999999999  - IPv4
  77 139999999 option errors            999999999  - TCP
  78 149999999 unwanted multicasts      999999999  - UDP
  79 159999999 delivered to upper layer 999999999  - IPv6
  80 169999999 bad scope packets        999999999  - routing header
  81 179999999 address selection failed 999999999  - fragmentation header
  82 18                                 999999999  - ICMP6
  83 19                                 999999999  - none
  84 --0123456789012345678901234567890123456789012345678901234567890123456789012345
  85 --0         1         2         3         4         5         6         7
  86 */
  87
  88 WINDOW *
  89 openip6(void)
  90 {
  91         return (subwin(stdscr, LINES-4-1, 0, 4, 0));
  92 }
  93
  94 void
  95 closeip6(WINDOW *w)
  96 {
  97         if (w == NULL)
  98                 return;
  99         wclear(w);
 100         wrefresh(w);
 101         delwin(w);
 102 }
 103
 104 void
 105 labelip6(void)
 106 {
 107         wmove(wnd, 0, 0); wclrtoeol(wnd);
 108 #define L(row, str) mvwprintw(wnd, row, 10, str)
 109 #define R(row, str) mvwprintw(wnd, row, 45, str);
 110         L(1, "IPv6 Input");             R(1, "IPv6 Output");
 111         L(2, "total packets received"); R(2, "total packets sent");
 112         L(3, "- too short for header"); R(3, "- generated locally");
 113         L(4, "- too short for data");   R(4, "- output drops");
 114         L(5, "- with invalid version"); R(5, "output fragments generated");
 115         L(6, "total fragments received"); R(6, "- fragmentation failed");
 116         L(7, "- fragments dropped");    R(7, "destinations unreachable");
 117         L(8, "- fragments timed out");  R(8, "packets output via raw IP");
 118         L(9, "- fragments overflown");
 119         L(10, "- packets reassembled ok"); R(10, "Input next-header histogram");
 120         L(11, "packets forwarded");     R(11, " - destination options");
 121         L(12, "- unreachable dests");   R(12, " - hop-by-hop options");
 122         L(13, "- redirects generated"); R(13, " - IPv4");
 123         L(14, "option errors");         R(14, " - TCP");
 124         L(15, "unwanted multicasts");   R(15, " - UDP");
 125         L(16, "delivered to upper layer"); R(16, " - IPv6");
 126         L(17, "bad scope packets");     R(17, " - routing header");
 127         L(18, "address selection failed"); R(18, " - fragmentation header");
 128                                         R(19, " - ICMP6");
 129                                         R(20, " - none");
 130 #undef L
 131 #undef R
 132 }
 133
 134 static void
 135 domode(struct ip6stat *ret)
 136 {
 137         const struct ip6stat *sub;
 138         int divisor = 1, i;
 139
 140         switch(currentmode) {
 141         case display_RATE:
 142                 sub = &oldstat;
 143                 divisor = naptime;
 144                 break;
 145         case display_DELTA:
 146                 sub = &oldstat;
 147                 break;
 148         case display_SINCE:
 149                 sub = &initstat;
 150                 break;
 151         default:
 152                 *ret = curstat;
 153                 return;
 154         }
 155 #define DO(stat) ret->stat = (curstat.stat - sub->stat) / divisor
 156         DO(ip6s_total);
 157         DO(ip6s_tooshort);
 158         DO(ip6s_toosmall);
 159         DO(ip6s_fragments);
 160         DO(ip6s_fragdropped);
 161         DO(ip6s_fragtimeout);
 162         DO(ip6s_fragoverflow);
 163         DO(ip6s_forward);
 164         DO(ip6s_cantforward);
 165         DO(ip6s_redirectsent);
 166         DO(ip6s_delivered);
 167         DO(ip6s_localout);
 168         DO(ip6s_odropped);
 169         DO(ip6s_reassembled);
 170         DO(ip6s_fragmented);
 171         DO(ip6s_ofragments);
 172         DO(ip6s_cantfrag);
 173         DO(ip6s_badoptions);
 174         DO(ip6s_noroute);
 175         DO(ip6s_badvers);
 176         DO(ip6s_rawout);
 177         DO(ip6s_notmember);
 178         for (i = 0; i < 256; i++)
 179                 DO(ip6s_nxthist[i]);
 180         DO(ip6s_badscope);
 181         DO(ip6s_sources_none);
 182 #undef DO
 183 }
 184
 185 void
 186 showip6(void)
 187 {
 188         struct ip6stat stats;
 189         u_long totalout;
 190
 191         domode(&stats);
 192         totalout = stats.ip6s_forward + stats.ip6s_localout;
 193
 194 #define DO(stat, row, col) \
 195         mvwprintw(wnd, row, col, "%9lu", stats.stat)
 196
 197         DO(ip6s_total, 2, 0);
 198         mvwprintw(wnd, 2, 35, "%9lu", totalout);
 199         DO(ip6s_tooshort, 3, 0);
 200         DO(ip6s_localout, 3, 35);
 201         DO(ip6s_toosmall, 4, 0);
 202         DO(ip6s_odropped, 4, 35);
 203         DO(ip6s_badvers, 5, 0);
 204         DO(ip6s_ofragments, 5, 35);
 205         DO(ip6s_fragments, 6, 0);
 206         DO(ip6s_cantfrag, 6, 35);
 207         DO(ip6s_fragdropped, 7, 0);
 208         DO(ip6s_noroute, 7, 35);
 209         DO(ip6s_fragtimeout, 8, 0);
 210         DO(ip6s_rawout, 8, 35);
 211         DO(ip6s_fragoverflow, 9, 0);
 212         DO(ip6s_reassembled, 10, 0);
 213         DO(ip6s_forward, 11, 0);
 214         DO(ip6s_nxthist[IPPROTO_DSTOPTS], 11, 35);
 215         DO(ip6s_cantforward, 12, 0);
 216         DO(ip6s_nxthist[IPPROTO_HOPOPTS], 12, 35);
 217         DO(ip6s_redirectsent, 13, 0);
 218         DO(ip6s_nxthist[IPPROTO_IPV4], 13, 35);
 219         DO(ip6s_badoptions, 14, 0);
 220         DO(ip6s_nxthist[IPPROTO_TCP], 14, 35);
 221         DO(ip6s_notmember, 15, 0);
 222         DO(ip6s_nxthist[IPPROTO_UDP], 15, 35);
 223         DO(ip6s_delivered, 16, 0);
 224         DO(ip6s_nxthist[IPPROTO_IPV6], 16, 35);
 225         DO(ip6s_badscope, 17, 0);
 226         DO(ip6s_nxthist[IPPROTO_ROUTING], 17, 35);
 227         DO(ip6s_sources_none, 18, 0);
 228         DO(ip6s_nxthist[IPPROTO_FRAGMENT], 18, 35);
 229         DO(ip6s_nxthist[IPPROTO_ICMPV6], 19, 35);
 230         DO(ip6s_nxthist[IPPROTO_NONE], 20, 35);
 231 #undef DO
 232 }
 233
 234 int
 235 initip6(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_IPV6;
 243         name[3] = IPV6CTL_STATS;
 244
 245         len = 0;
 246         if (sysctl(name, 4, 0, &len, 0, 0) < 0) {
 247                 error("sysctl getting ip6stat size failed");
 248                 return 0;
 249         }
 250         if (len > sizeof curstat) {
 251                 error("ip6stat structure has grown--recompile systat!");
 252                 return 0;
 253         }
 254         if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
 255                 error("sysctl getting ip6stat failed");
 256                 return 0;
 257         }
 258         oldstat = initstat;
 259         return 1;
 260 }
 261
 262 void
 263 resetip6(void)
 264 {
 265         size_t len;
 266         int name[4];
 267
 268         name[0] = CTL_NET;
 269         name[1] = PF_INET6;
 270         name[2] = IPPROTO_IPV6;
 271         name[3] = IPV6CTL_STATS;
 272
 273         len = sizeof initstat;
 274         if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
 275                 error("sysctl getting ipstat failed");
 276         }
 277
 278         oldstat = initstat;
 279 }
 280
 281 void
 282 fetchip6(void)
 283 {
 284         int name[4];
 285         size_t len;
 286
 287         oldstat = curstat;
 288         name[0] = CTL_NET;
 289         name[1] = PF_INET6;
 290         name[2] = IPPROTO_IPV6;
 291         name[3] = IPV6CTL_STATS;
 292         len = sizeof curstat;
 293
 294         if (sysctl(name, 4, &curstat, &len, 0, 0) < 0)
 295                 return;
 296 }
 297
 298 #endif