usr.bin/netstat/inet6.c

   1 /*      BSDI inet.c,v 2.3 1995/10/24 02:19:29 prb Exp   */
   2 /*
   3  * Copyright (c) 1983, 1988, 1993
   4  *      The Regents of the University of California.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 4. Neither the name of the University nor the names of its contributors
  15  *    may be used to endorse or promote products derived from this software
  16  *    without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  *
  30  * $FreeBSD: src/usr.bin/netstat/inet6.c,v 1.3.2.11 2001/09/17 14:53:17 ru Exp $
  31  *
  32  * @(#)inet6.c  8.4 (Berkeley) 4/20/94
  33  */
  34
  35 #ifdef INET6
  36 #define _KERNEL_STRUCTURES
  37 #include <sys/param.h>
  38 #include <sys/socket.h>
  39 #include <sys/socketvar.h>
  40 #include <sys/ioctl.h>
  41 #include <sys/mbuf.h>
  42 #include <sys/protosw.h>
  43 #include <sys/sysctl.h>
  44
  45 #include <net/route.h>
  46 #include <net/if.h>
  47 #include <net/if_var.h>
  48 #include <netinet/in.h>
  49 #include <netinet/ip6.h>
  50 #include <netinet/icmp6.h>
  51 #include <netinet/in_systm.h>
  52 #include <netinet6/in6_pcb.h>
  53 #include <netinet6/in6_var.h>
  54 #include <netinet6/ip6_var.h>
  55 #include <netinet6/pim6_var.h>
  56 #include <netinet6/raw_ip6.h>
  57
  58 #include <arpa/inet.h>
  59 #include <netdb.h>
  60 #include <errno.h>
  61
  62 #include <stdio.h>
  63 #include <string.h>
  64 #include <unistd.h>
  65 #include "netstat.h"
  66
  67 struct  socket sockb;
  68
  69 char    *inet6name (struct in6_addr *);
  70 void    inet6print (struct in6_addr *, int, char *, int);
  71
  72 static char ntop_buf[INET6_ADDRSTRLEN];
  73
  74 static  const char *ip6nh[] = {
  75         "hop by hop",
  76         "ICMP",
  77         "IGMP",
  78         "#3",
  79         "IP",
  80         "#5",
  81         "TCP",
  82         "#7",
  83         "#8",
  84         "#9",
  85         "#10",
  86         "#11",
  87         "#12",
  88         "#13",
  89         "#14",
  90         "#15",
  91         "#16",
  92         "UDP",
  93         "#18",
  94         "#19",
  95         "#20",
  96         "#21",
  97         "IDP",
  98         "#23",
  99         "#24",
 100         "#25",
 101         "#26",
 102         "#27",
 103         "#28",
 104         "TP",
 105         "#30",
 106         "#31",
 107         "#32",
 108         "#33",
 109         "#34",
 110         "#35",
 111         "#36",
 112         "#37",
 113         "#38",
 114         "#39",
 115         "#40",
 116         "IP6",
 117         "#42",
 118         "routing",
 119         "fragment",
 120         "#45",
 121         "#46",
 122         "#47",
 123         "#48",
 124         "#49",
 125         "ESP",
 126         "AH",
 127         "#52",
 128         "#53",
 129         "#54",
 130         "#55",
 131         "#56",
 132         "#57",
 133         "ICMP6",
 134         "no next header",
 135         "destination option",
 136         "#61",
 137         "#62",
 138         "#63",
 139         "#64",
 140         "#65",
 141         "#66",
 142         "#67",
 143         "#68",
 144         "#69",
 145         "#70",
 146         "#71",
 147         "#72",
 148         "#73",
 149         "#74",
 150         "#75",
 151         "#76",
 152         "#77",
 153         "#78",
 154         "#79",
 155         "ISOIP",
 156         "#81",
 157         "#82",
 158         "#83",
 159         "#84",
 160         "#85",
 161         "#86",
 162         "#87",
 163         "#88",
 164         "OSPF",
 165         "#80",
 166         "#91",
 167         "#92",
 168         "#93",
 169         "#94",
 170         "#95",
 171         "#96",
 172         "Ethernet",
 173         "#98",
 174         "#99",
 175         "#100",
 176         "#101",
 177         "#102",
 178         "PIM",
 179         "#104",
 180         "#105",
 181         "#106",
 182         "#107",
 183         "#108",
 184         "#109",
 185         "#110",
 186         "#111",
 187         "#112",
 188         "#113",
 189         "#114",
 190         "#115",
 191         "#116",
 192         "#117",
 193         "#118",
 194         "#119",
 195         "#120",
 196         "#121",
 197         "#122",
 198         "#123",
 199         "#124",
 200         "#125",
 201         "#126",
 202         "#127",
 203         "#128",
 204         "#129",
 205         "#130",
 206         "#131",
 207         "#132",
 208         "#133",
 209         "#134",
 210         "#135",
 211         "#136",
 212         "#137",
 213         "#138",
 214         "#139",
 215         "#140",
 216         "#141",
 217         "#142",
 218         "#143",
 219         "#144",
 220         "#145",
 221         "#146",
 222         "#147",
 223         "#148",
 224         "#149",
 225         "#150",
 226         "#151",
 227         "#152",
 228         "#153",
 229         "#154",
 230         "#155",
 231         "#156",
 232         "#157",
 233         "#158",
 234         "#159",
 235         "#160",
 236         "#161",
 237         "#162",
 238         "#163",
 239         "#164",
 240         "#165",
 241         "#166",
 242         "#167",
 243         "#168",
 244         "#169",
 245         "#170",
 246         "#171",
 247         "#172",
 248         "#173",
 249         "#174",
 250         "#175",
 251         "#176",
 252         "#177",
 253         "#178",
 254         "#179",
 255         "#180",
 256         "#181",
 257         "#182",
 258         "#183",
 259         "#184",
 260         "#185",
 261         "#186",
 262         "#187",
 263         "#188",
 264         "#189",
 265         "#180",
 266         "#191",
 267         "#192",
 268         "#193",
 269         "#194",
 270         "#195",
 271         "#196",
 272         "#197",
 273         "#198",
 274         "#199",
 275         "#200",
 276         "#201",
 277         "#202",
 278         "#203",
 279         "#204",
 280         "#205",
 281         "#206",
 282         "#207",
 283         "#208",
 284         "#209",
 285         "#210",
 286         "#211",
 287         "#212",
 288         "#213",
 289         "#214",
 290         "#215",
 291         "#216",
 292         "#217",
 293         "#218",
 294         "#219",
 295         "#220",
 296         "#221",
 297         "#222",
 298         "#223",
 299         "#224",
 300         "#225",
 301         "#226",
 302         "#227",
 303         "#228",
 304         "#229",
 305         "#230",
 306         "#231",
 307         "#232",
 308         "#233",
 309         "#234",
 310         "#235",
 311         "#236",
 312         "#237",
 313         "#238",
 314         "#239",
 315         "#240",
 316         "#241",
 317         "#242",
 318         "#243",
 319         "#244",
 320         "#245",
 321         "#246",
 322         "#247",
 323         "#248",
 324         "#249",
 325         "#250",
 326         "#251",
 327         "#252",
 328         "#253",
 329         "#254",
 330         "#255",
 331 };
 332
 333 /*
 334  * Dump IP6 statistics structure.
 335  */
 336 void
 337 ip6_stats(u_long off __unused, const char *name, int af1 __unused)
 338 {
 339         struct ip6stat ip6stat;
 340         int first, i;
 341         int mib[4];
 342         size_t len;
 343
 344         mib[0] = CTL_NET;
 345         mib[1] = PF_INET6;
 346         mib[2] = IPPROTO_IPV6;
 347         mib[3] = IPV6CTL_STATS;
 348
 349         len = sizeof ip6stat;
 350         memset(&ip6stat, 0, len);
 351         if (sysctl(mib, 4, &ip6stat, &len, NULL, 0) < 0)
 352                 return;
 353         printf("%s:\n", name);
 354
 355 #define p(f, m) if (ip6stat.f || sflag <= 1) \
 356     printf(m, (unsigned long long)ip6stat.f, plural(ip6stat.f))
 357 #define p1a(f, m) if (ip6stat.f || sflag <= 1) \
 358     printf(m, (unsigned long long)ip6stat.f)
 359
 360         p(ip6s_total, "\t%llu total packet%s received\n");
 361         p1a(ip6s_toosmall, "\t%llu with size smaller than minimum\n");
 362         p1a(ip6s_tooshort, "\t%llu with data size < data length\n");
 363         p1a(ip6s_badoptions, "\t%llu with bad options\n");
 364         p1a(ip6s_badvers, "\t%llu with incorrect version number\n");
 365         p(ip6s_fragments, "\t%llu fragment%s received\n");
 366         p(ip6s_fragdropped, "\t%llu fragment%s dropped (dup or out of space)\n");
 367         p(ip6s_fragtimeout, "\t%llu fragment%s dropped after timeout\n");
 368         p(ip6s_fragoverflow, "\t%llu fragment%s that exceeded limit\n");
 369         p(ip6s_reassembled, "\t%llu packet%s reassembled ok\n");
 370         p(ip6s_delivered, "\t%llu packet%s for this host\n");
 371         p(ip6s_forward, "\t%llu packet%s forwarded\n");
 372         p(ip6s_cantforward, "\t%llu packet%s not forwardable\n");
 373         p(ip6s_redirectsent, "\t%llu redirect%s sent\n");
 374         p(ip6s_localout, "\t%llu packet%s sent from this host\n");
 375         p(ip6s_rawout, "\t%llu packet%s sent with fabricated ip header\n");
 376         p(ip6s_odropped, "\t%llu output packet%s dropped due to no bufs, etc.\n");
 377         p(ip6s_noroute, "\t%llu output packet%s discarded due to no route\n");
 378         p(ip6s_fragmented, "\t%llu output datagram%s fragmented\n");
 379         p(ip6s_ofragments, "\t%llu fragment%s created\n");
 380         p(ip6s_cantfrag, "\t%llu datagram%s that can't be fragmented\n");
 381         p(ip6s_badscope, "\t%llu packet%s that violated scope rules\n");
 382         p(ip6s_notmember, "\t%llu multicast packet%s which we don't join\n");
 383         for (first = 1, i = 0; i < 256; i++)
 384                 if (ip6stat.ip6s_nxthist[i] != 0) {
 385                         if (first) {
 386                                 printf("\tInput histogram:\n");
 387                                 first = 0;
 388                         }
 389                         printf("\t\t%s: %llu\n", ip6nh[i],
 390                             (unsigned long long)ip6stat.ip6s_nxthist[i]);
 391                 }
 392         printf("\tMbuf statistics:\n");
 393         printf("\t\t%llu one mbuf\n", (unsigned long long)ip6stat.ip6s_m1);
 394         for (first = 1, i = 0; i < 32; i++) {
 395                 char ifbuf[IFNAMSIZ];
 396                 if (ip6stat.ip6s_m2m[i] != 0) {
 397                         if (first) {
 398                                 printf("\t\ttwo or more mbuf:\n");
 399                                 first = 0;
 400                         }
 401                         printf("\t\t\t%s= %llu\n",
 402                             if_indextoname(i, ifbuf),
 403                             (unsigned long long)ip6stat.ip6s_m2m[i]);
 404                 }
 405         }
 406         printf("\t\t%llu one ext mbuf\n",
 407             (unsigned long long)ip6stat.ip6s_mext1);
 408         printf("\t\t%llu two or more ext mbuf\n",
 409             (unsigned long long)ip6stat.ip6s_mext2m);
 410         p(ip6s_exthdrtoolong,
 411             "\t%llu packet%s whose headers are not continuous\n");
 412         p(ip6s_nogif, "\t%llu tunneling packet%s that can't find gif\n");
 413         p(ip6s_toomanyhdr,
 414             "\t%llu packet%s discarded due to too may headers\n");
 415
 416         /* for debugging source address selection */
 417 #define PRINT_SCOPESTAT(s,i) do {\
 418                 switch(i) { /* XXX hardcoding in each case */\
 419                 case 1:\
 420                         p(s, "\t\t%llu node-local%s\n");\
 421                         break;\
 422                 case 2:\
 423                         p(s,"\t\t%llu link-local%s\n");\
 424                         break;\
 425                 case 5:\
 426                         p(s,"\t\t%llu site-local%s\n");\
 427                         break;\
 428                 case 14:\
 429                         p(s,"\t\t%llu global%s\n");\
 430                         break;\
 431                 default:\
 432                         printf("\t\t%llu addresses scope=%x\n",\
 433                             (unsigned long long)ip6stat.s, i);\
 434                 }\
 435         } while (0);
 436
 437         p(ip6s_sources_none,
 438           "\t%llu failure%s of source address selection\n");
 439         for (first = 1, i = 0; i < 16; i++) {
 440                 if (ip6stat.ip6s_sources_sameif[i]) {
 441                         if (first) {
 442                                 printf("\tsource addresses on an outgoing I/F\n");
 443                                 first = 0;
 444                         }
 445                         PRINT_SCOPESTAT(ip6s_sources_sameif[i], i);
 446                 }
 447         }
 448         for (first = 1, i = 0; i < 16; i++) {
 449                 if (ip6stat.ip6s_sources_otherif[i]) {
 450                         if (first) {
 451                                 printf("\tsource addresses on a non-outgoing I/F\n");
 452                                 first = 0;
 453                         }
 454                         PRINT_SCOPESTAT(ip6s_sources_otherif[i], i);
 455                 }
 456         }
 457         for (first = 1, i = 0; i < 16; i++) {
 458                 if (ip6stat.ip6s_sources_samescope[i]) {
 459                         if (first) {
 460                                 printf("\tsource addresses of same scope\n");
 461                                 first = 0;
 462                         }
 463                         PRINT_SCOPESTAT(ip6s_sources_samescope[i], i);
 464                 }
 465         }
 466         for (first = 1, i = 0; i < 16; i++) {
 467                 if (ip6stat.ip6s_sources_otherscope[i]) {
 468                         if (first) {
 469                                 printf("\tsource addresses of a different scope\n");
 470                                 first = 0;
 471                         }
 472                         PRINT_SCOPESTAT(ip6s_sources_otherscope[i], i);
 473                 }
 474         }
 475         for (first = 1, i = 0; i < 16; i++) {
 476                 if (ip6stat.ip6s_sources_deprecated[i]) {
 477                         if (first) {
 478                                 printf("\tdeprecated source addresses\n");
 479                                 first = 0;
 480                         }
 481                         PRINT_SCOPESTAT(ip6s_sources_deprecated[i], i);
 482                 }
 483         }
 484
 485         p1a(ip6s_forward_cachehit, "\t%llu forward cache hit\n");
 486         p1a(ip6s_forward_cachemiss, "\t%llu forward cache miss\n");
 487 #undef p
 488 #undef p1a
 489 }
 490
 491 /*
 492  * Dump IPv6 per-interface statistics based on RFC 2465.
 493  */
 494 void
 495 ip6_ifstats(char *ifname)
 496 {
 497         struct in6_ifreq ifr;
 498         int s;
 499 #define p(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \
 500     printf(m, (unsigned long long)ifr.ifr_ifru.ifru_stat.f, plural(ifr.ifr_ifru.ifru_stat.f))
 501 #define p_5(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \
 502     printf(m, (unsigned long long)ip6stat.f)
 503
 504         if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
 505                 perror("Warning: socket(AF_INET6)");
 506                 return;
 507         }
 508
 509         strcpy(ifr.ifr_name, ifname);
 510         printf("ip6 on %s:\n", ifr.ifr_name);
 511
 512         if (ioctl(s, SIOCGIFSTAT_IN6, (char *)&ifr) < 0) {
 513                 perror("Warning: ioctl(SIOCGIFSTAT_IN6)");
 514                 goto end;
 515         }
 516
 517         p(ifs6_in_receive, "\t%llu total input datagram%s\n");
 518         p(ifs6_in_hdrerr, "\t%llu datagram%s with invalid header received\n");
 519         p(ifs6_in_toobig, "\t%llu datagram%s exceeded MTU received\n");
 520         p(ifs6_in_noroute, "\t%llu datagram%s with no route received\n");
 521         p(ifs6_in_addrerr, "\t%llu datagram%s with invalid dst received\n");
 522         p(ifs6_in_protounknown, "\t%llu datagram%s with unknown proto received\n");
 523         p(ifs6_in_truncated, "\t%llu truncated datagram%s received\n");
 524         p(ifs6_in_discard, "\t%llu input datagram%s discarded\n");
 525         p(ifs6_in_deliver,
 526           "\t%llu datagram%s delivered to an upper layer protocol\n");
 527         p(ifs6_out_forward, "\t%llu datagram%s forwarded to this interface\n");
 528         p(ifs6_out_request,
 529           "\t%llu datagram%s sent from an upper layer protocol\n");
 530         p(ifs6_out_discard, "\t%llu total discarded output datagram%s\n");
 531         p(ifs6_out_fragok, "\t%llu output datagram%s fragmented\n");
 532         p(ifs6_out_fragfail, "\t%llu output datagram%s failed on fragment\n");
 533         p(ifs6_out_fragcreat, "\t%llu output datagram%s succeeded on fragment\n");
 534         p(ifs6_reass_reqd, "\t%llu incoming datagram%s fragmented\n");
 535         p(ifs6_reass_ok, "\t%llu datagram%s reassembled\n");
 536         p(ifs6_reass_fail, "\t%llu datagram%s failed on reassembling\n");
 537         p(ifs6_in_mcast, "\t%llu multicast datagram%s received\n");
 538         p(ifs6_out_mcast, "\t%llu multicast datagram%s sent\n");
 539
 540   end:
 541         close(s);
 542
 543 #undef p
 544 #undef p_5
 545 }
 546
 547 static  const char *icmp6names[] = {
 548         "#0",
 549         "unreach",
 550         "packet too big",
 551         "time exceed",
 552         "parameter problem",
 553         "#5",
 554         "#6",
 555         "#7",
 556         "#8",
 557         "#9",
 558         "#10",
 559         "#11",
 560         "#12",
 561         "#13",
 562         "#14",
 563         "#15",
 564         "#16",
 565         "#17",
 566         "#18",
 567         "#19",
 568         "#20",
 569         "#21",
 570         "#22",
 571         "#23",
 572         "#24",
 573         "#25",
 574         "#26",
 575         "#27",
 576         "#28",
 577         "#29",
 578         "#30",
 579         "#31",
 580         "#32",
 581         "#33",
 582         "#34",
 583         "#35",
 584         "#36",
 585         "#37",
 586         "#38",
 587         "#39",
 588         "#40",
 589         "#41",
 590         "#42",
 591         "#43",
 592         "#44",
 593         "#45",
 594         "#46",
 595         "#47",
 596         "#48",
 597         "#49",
 598         "#50",
 599         "#51",
 600         "#52",
 601         "#53",
 602         "#54",
 603         "#55",
 604         "#56",
 605         "#57",
 606         "#58",
 607         "#59",
 608         "#60",
 609         "#61",
 610         "#62",
 611         "#63",
 612         "#64",
 613         "#65",
 614         "#66",
 615         "#67",
 616         "#68",
 617         "#69",
 618         "#70",
 619         "#71",
 620         "#72",
 621         "#73",
 622         "#74",
 623         "#75",
 624         "#76",
 625         "#77",
 626         "#78",
 627         "#79",
 628         "#80",
 629         "#81",
 630         "#82",
 631         "#83",
 632         "#84",
 633         "#85",
 634         "#86",
 635         "#87",
 636         "#88",
 637         "#89",
 638         "#80",
 639         "#91",
 640         "#92",
 641         "#93",
 642         "#94",
 643         "#95",
 644         "#96",
 645         "#97",
 646         "#98",
 647         "#99",
 648         "#100",
 649         "#101",
 650         "#102",
 651         "#103",
 652         "#104",
 653         "#105",
 654         "#106",
 655         "#107",
 656         "#108",
 657         "#109",
 658         "#110",
 659         "#111",
 660         "#112",
 661         "#113",
 662         "#114",
 663         "#115",
 664         "#116",
 665         "#117",
 666         "#118",
 667         "#119",
 668         "#120",
 669         "#121",
 670         "#122",
 671         "#123",
 672         "#124",
 673         "#125",
 674         "#126",
 675         "#127",
 676         "echo",
 677         "echo reply",
 678         "multicast listener query",
 679         "multicast listener report",
 680         "multicast listener done",
 681         "router solicitation",
 682         "router advertisement",
 683         "neighbor solicitation",
 684         "neighbor advertisement",
 685         "redirect",
 686         "router renumbering",
 687         "node information request",
 688         "node information reply",
 689         "inverse neighbor solicitation",
 690         "inverse neighbor advertisement",
 691         "#143",
 692         "#144",
 693         "#145",
 694         "#146",
 695         "#147",
 696         "#148",
 697         "#149",
 698         "#150",
 699         "#151",
 700         "#152",
 701         "#153",
 702         "#154",
 703         "#155",
 704         "#156",
 705         "#157",
 706         "#158",
 707         "#159",
 708         "#160",
 709         "#161",
 710         "#162",
 711         "#163",
 712         "#164",
 713         "#165",
 714         "#166",
 715         "#167",
 716         "#168",
 717         "#169",
 718         "#170",
 719         "#171",
 720         "#172",
 721         "#173",
 722         "#174",
 723         "#175",
 724         "#176",
 725         "#177",
 726         "#178",
 727         "#179",
 728         "#180",
 729         "#181",
 730         "#182",
 731         "#183",
 732         "#184",
 733         "#185",
 734         "#186",
 735         "#187",
 736         "#188",
 737         "#189",
 738         "#180",
 739         "#191",
 740         "#192",
 741         "#193",
 742         "#194",
 743         "#195",
 744         "#196",
 745         "#197",
 746         "#198",
 747         "#199",
 748         "#200",
 749         "#201",
 750         "#202",
 751         "#203",
 752         "#204",
 753         "#205",
 754         "#206",
 755         "#207",
 756         "#208",
 757         "#209",
 758         "#210",
 759         "#211",
 760         "#212",
 761         "#213",
 762         "#214",
 763         "#215",
 764         "#216",
 765         "#217",
 766         "#218",
 767         "#219",
 768         "#220",
 769         "#221",
 770         "#222",
 771         "#223",
 772         "#224",
 773         "#225",
 774         "#226",
 775         "#227",
 776         "#228",
 777         "#229",
 778         "#230",
 779         "#231",
 780         "#232",
 781         "#233",
 782         "#234",
 783         "#235",
 784         "#236",
 785         "#237",
 786         "#238",
 787         "#239",
 788         "#240",
 789         "#241",
 790         "#242",
 791         "#243",
 792         "#244",
 793         "#245",
 794         "#246",
 795         "#247",
 796         "#248",
 797         "#249",
 798         "#250",
 799         "#251",
 800         "#252",
 801         "#253",
 802         "#254",
 803         "#255",
 804 };
 805
 806 /*
 807  * Dump ICMP6 statistics.
 808  */
 809 void
 810 icmp6_stats(u_long off __unused, const char *name, int af1 __unused)
 811 {
 812         struct icmp6stat icmp6stat;
 813         int first;
 814         int mib[4];
 815         size_t i, len;
 816
 817         mib[0] = CTL_NET;
 818         mib[1] = PF_INET6;
 819         mib[2] = IPPROTO_ICMPV6;
 820         mib[3] = ICMPV6CTL_STATS;
 821
 822         len = sizeof icmp6stat;
 823         memset(&icmp6stat, 0, len);
 824         if (sysctl(mib, 4, &icmp6stat, &len, NULL, 0) < 0)
 825                 return;
 826         printf("%s:\n", name);
 827
 828 #define p(f, m) if (icmp6stat.f || sflag <= 1) \
 829     printf(m, (unsigned long long)icmp6stat.f, plural(icmp6stat.f))
 830 #define p_5(f, m) printf(m, (unsigned long long)icmp6stat.f)
 831
 832         p(icp6s_error, "\t%llu call%s to icmp_error\n");
 833         p(icp6s_canterror,
 834             "\t%llu error%s not generated because old message was icmp error or so\n");
 835         p(icp6s_toofreq,
 836           "\t%llu error%s not generated because rate limitation\n");
 837         for (first = 1, i = 0; i < NELEM(icmp6stat.icp6s_outhist); i++)
 838                 if (icmp6stat.icp6s_outhist[i] != 0) {
 839                         if (first) {
 840                                 printf("\tOutput histogram:\n");
 841                                 first = 0;
 842                         }
 843                         printf("\t\t%s: %llu\n", icmp6names[i],
 844                             (unsigned long long)icmp6stat.icp6s_outhist[i]);
 845                 }
 846         p(icp6s_badcode, "\t%llu message%s with bad code fields\n");
 847         p(icp6s_tooshort, "\t%llu message%s < minimum length\n");
 848         p(icp6s_checksum, "\t%llu bad checksum%s\n");
 849         p(icp6s_badlen, "\t%llu message%s with bad length\n");
 850         for (first = 1, i = 0; i < NELEM(icmp6stat.icp6s_inhist); i++)
 851                 if (icmp6stat.icp6s_inhist[i] != 0) {
 852                         if (first) {
 853                                 printf("\tInput histogram:\n");
 854                                 first = 0;
 855                         }
 856                         printf("\t\t%s: %llu\n", icmp6names[i],
 857                             (unsigned long long)icmp6stat.icp6s_inhist[i]);
 858                 }
 859         printf("\tHistogram of error messages to be generated:\n");
 860         p_5(icp6s_odst_unreach_noroute, "\t\t%llu no route\n");
 861         p_5(icp6s_odst_unreach_admin, "\t\t%llu administratively prohibited\n");
 862         p_5(icp6s_odst_unreach_beyondscope, "\t\t%llu beyond scope\n");
 863         p_5(icp6s_odst_unreach_addr, "\t\t%llu address unreachable\n");
 864         p_5(icp6s_odst_unreach_noport, "\t\t%llu port unreachable\n");
 865         p_5(icp6s_opacket_too_big, "\t\t%llu packet too big\n");
 866         p_5(icp6s_otime_exceed_transit, "\t\t%llu time exceed transit\n");
 867         p_5(icp6s_otime_exceed_reassembly, "\t\t%llu time exceed reassembly\n");
 868         p_5(icp6s_oparamprob_header, "\t\t%llu erroneous header field\n");
 869         p_5(icp6s_oparamprob_nextheader, "\t\t%llu unrecognized next header\n");
 870         p_5(icp6s_oparamprob_option, "\t\t%llu unrecognized option\n");
 871         p_5(icp6s_oredirect, "\t\t%llu redirect\n");
 872         p_5(icp6s_ounknown, "\t\t%llu unknown\n");
 873
 874         p(icp6s_reflect, "\t%llu message response%s generated\n");
 875         p(icp6s_nd_toomanyopt, "\t%llu message%s with too many ND options\n");
 876         p(icp6s_nd_badopt, "\t%qu message%s with bad ND options\n");
 877         p(icp6s_badns, "\t%qu bad neighbor solicitation message%s\n");
 878         p(icp6s_badna, "\t%qu bad neighbor advertisement message%s\n");
 879         p(icp6s_badrs, "\t%qu bad router solicitation message%s\n");
 880         p(icp6s_badra, "\t%qu bad router advertisement message%s\n");
 881         p(icp6s_badredirect, "\t%qu bad redirect message%s\n");
 882         p(icp6s_pmtuchg, "\t%llu path MTU change%s\n");
 883 #undef p
 884 #undef p_5
 885 }
 886
 887 /*
 888  * Dump ICMPv6 per-interface statistics based on RFC 2466.
 889  */
 890 void
 891 icmp6_ifstats(char *ifname)
 892 {
 893         struct in6_ifreq ifr;
 894         int s;
 895 #define p(f, m) if (ifr.ifr_ifru.ifru_icmp6stat.f || sflag <= 1) \
 896     printf(m, (unsigned long long)ifr.ifr_ifru.ifru_icmp6stat.f, plural(ifr.ifr_ifru.ifru_icmp6stat.f))
 897
 898         if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
 899                 perror("Warning: socket(AF_INET6)");
 900                 return;
 901         }
 902
 903         strcpy(ifr.ifr_name, ifname);
 904         printf("icmp6 on %s:\n", ifr.ifr_name);
 905
 906         if (ioctl(s, SIOCGIFSTAT_ICMP6, (char *)&ifr) < 0) {
 907                 perror("Warning: ioctl(SIOCGIFSTAT_ICMP6)");
 908                 goto end;
 909         }
 910
 911         p(ifs6_in_msg, "\t%llu total input message%s\n");
 912         p(ifs6_in_error, "\t%llu total input error message%s\n");
 913         p(ifs6_in_dstunreach, "\t%llu input destination unreachable error%s\n");
 914         p(ifs6_in_adminprohib, "\t%llu input administratively prohibited error%s\n");
 915         p(ifs6_in_timeexceed, "\t%llu input time exceeded error%s\n");
 916         p(ifs6_in_paramprob, "\t%llu input parameter problem error%s\n");
 917         p(ifs6_in_pkttoobig, "\t%llu input packet too big error%s\n");
 918         p(ifs6_in_echo, "\t%llu input echo request%s\n");
 919         p(ifs6_in_echoreply, "\t%llu input echo reply%s\n");
 920         p(ifs6_in_routersolicit, "\t%llu input router solicitation%s\n");
 921         p(ifs6_in_routeradvert, "\t%llu input router advertisement%s\n");
 922         p(ifs6_in_neighborsolicit, "\t%llu input neighbor solicitation%s\n");
 923         p(ifs6_in_neighboradvert, "\t%llu input neighbor advertisement%s\n");
 924         p(ifs6_in_redirect, "\t%llu input redirect%s\n");
 925         p(ifs6_in_mldquery, "\t%llu input MLD query%s\n");
 926         p(ifs6_in_mldreport, "\t%llu input MLD report%s\n");
 927         p(ifs6_in_mlddone, "\t%llu input MLD done%s\n");
 928
 929         p(ifs6_out_msg, "\t%llu total output message%s\n");
 930         p(ifs6_out_error, "\t%llu total output error message%s\n");
 931         p(ifs6_out_dstunreach, "\t%llu output destination unreachable error%s\n");
 932         p(ifs6_out_adminprohib, "\t%llu output administratively prohibited error%s\n");
 933         p(ifs6_out_timeexceed, "\t%llu output time exceeded error%s\n");
 934         p(ifs6_out_paramprob, "\t%llu output parameter problem error%s\n");
 935         p(ifs6_out_pkttoobig, "\t%llu output packet too big error%s\n");
 936         p(ifs6_out_echo, "\t%llu output echo request%s\n");
 937         p(ifs6_out_echoreply, "\t%llu output echo reply%s\n");
 938         p(ifs6_out_routersolicit, "\t%llu output router solicitation%s\n");
 939         p(ifs6_out_routeradvert, "\t%llu output router advertisement%s\n");
 940         p(ifs6_out_neighborsolicit, "\t%llu output neighbor solicitation%s\n");
 941         p(ifs6_out_neighboradvert, "\t%llu output neighbor advertisement%s\n");
 942         p(ifs6_out_redirect, "\t%llu output redirect%s\n");
 943         p(ifs6_out_mldquery, "\t%llu output MLD query%s\n");
 944         p(ifs6_out_mldreport, "\t%llu output MLD report%s\n");
 945         p(ifs6_out_mlddone, "\t%llu output MLD done%s\n");
 946
 947   end:
 948         close(s);
 949 #undef p
 950 }
 951
 952 /*
 953  * Dump PIM statistics structure.
 954  */
 955 void
 956 pim6_stats(u_long off __unused, const char *name, int af1 __unused)
 957 {
 958         struct pim6stat pim6stat;
 959
 960         if (off == 0)
 961                 return;
 962         kread(off, (char *)&pim6stat, sizeof(pim6stat));
 963         printf("%s:\n", name);
 964
 965 #define p(f, m) if (pim6stat.f || sflag <= 1) \
 966     printf(m, (unsigned long long)pim6stat.f, plural(pim6stat.f))
 967         p(pim6s_rcv_total, "\t%llu message%s received\n");
 968         p(pim6s_rcv_tooshort, "\t%llu message%s received with too few bytes\n");
 969         p(pim6s_rcv_badsum, "\t%llu message%s received with bad checksum\n");
 970         p(pim6s_rcv_badversion, "\t%llu message%s received with bad version\n");
 971         p(pim6s_rcv_registers, "\t%llu register%s received\n");
 972         p(pim6s_rcv_badregisters, "\t%llu bad register%s received\n");
 973         p(pim6s_snd_registers, "\t%llu register%s sent\n");
 974 #undef p
 975 }
 976
 977 /*
 978  * Dump raw ip6 statistics structure.
 979  */
 980 void
 981 rip6_stats(u_long off __unused, const char *name, int af1 __unused)
 982 {
 983         struct rip6stat rip6stat;
 984         u_quad_t delivered;
 985         int mib[4];
 986         size_t l;
 987
 988         mib[0] = CTL_NET;
 989         mib[1] = PF_INET6;
 990         mib[2] = IPPROTO_IPV6;
 991         mib[3] = IPV6CTL_RIP6STATS;
 992         l = sizeof(rip6stat);
 993         if (sysctl(mib, 4, &rip6stat, &l, NULL, 0) < 0) {
 994                 if (errno != ENOENT)
 995                         perror("Warning: sysctl(net.inet6.ip6.rip6stats)");
 996                 return;
 997         }
 998
 999         printf("%s:\n", name);
1000
1001 #define p(f, m) if (rip6stat.f || sflag <= 1) \
1002     printf(m, (unsigned long long)rip6stat.f, plural(rip6stat.f))
1003         p(rip6s_ipackets, "\t%llu message%s received\n");
1004         p(rip6s_isum, "\t%llu checksum calcuration%s on inbound\n");
1005         p(rip6s_badsum, "\t%llu message%s with bad checksum\n");
1006         p(rip6s_nosock, "\t%llu message%s dropped due to no socket\n");
1007         p(rip6s_nosockmcast,
1008             "\t%llu multicast message%s dropped due to no socket\n");
1009         p(rip6s_fullsock,
1010             "\t%llu message%s dropped due to full socket buffers\n");
1011         delivered = rip6stat.rip6s_ipackets -
1012                     rip6stat.rip6s_badsum -
1013                     rip6stat.rip6s_nosock -
1014                     rip6stat.rip6s_nosockmcast -
1015                     rip6stat.rip6s_fullsock;
1016         if (delivered || sflag <= 1)
1017                 printf("\t%llu delivered\n", (unsigned long long)delivered);
1018         p(rip6s_opackets, "\t%llu datagram%s output\n");
1019 #undef p
1020 }
1021
1022 /*
1023  * Pretty print an Internet address (net address + port).
1024  * Take numeric_addr and numeric_port into consideration.
1025  */
1026 #define GETSERVBYPORT6(port, proto, ret)\
1027 {\
1028         if (strcmp((proto), "tcp6") == 0)\
1029                 (ret) = getservbyport((int)(port), "tcp");\
1030         else if (strcmp((proto), "udp6") == 0)\
1031                 (ret) = getservbyport((int)(port), "udp");\
1032         else\
1033                 (ret) = getservbyport((int)(port), (proto));\
1034 };
1035
1036 void
1037 inet6print(struct in6_addr *in6, int port, char *proto, int numeric)
1038 {
1039         struct servent *sp = NULL;
1040         char line[80], *cp;
1041         int width;
1042
1043         sprintf(line, "%.*s.", Wflag ? 39 :
1044                 (Aflag && !numeric) ? 12 : 16, inet6name(in6));
1045         cp = strchr(line, '\0');
1046         if (!numeric && port)
1047                 GETSERVBYPORT6(port, proto, sp);
1048         if (sp || port == 0)
1049                 sprintf(cp, "%.8s", sp ? sp->s_name : "*");
1050         else
1051                 sprintf(cp, "%d", ntohs((u_short)port));
1052         width = Wflag ? 45 : Aflag ? 17 : 21;
1053         printf("%-*.*s ", width, width, line);
1054 }
1055
1056 /*
1057  * Construct an Internet address representation.
1058  * If the numeric_addr has been supplied, give
1059  * numeric value, otherwise try for symbolic name.
1060  */
1061
1062 char *
1063 inet6name(struct in6_addr *in6p)
1064 {
1065         char *cp;
1066         static char line[50];
1067         struct hostent *hp;
1068         static char domain[MAXHOSTNAMELEN];
1069         static int first = 1;
1070
1071         if (first && !numeric_addr) {
1072                 first = 0;
1073                 if (gethostname(domain, MAXHOSTNAMELEN) == 0 &&
1074                     (cp = strchr(domain, '.')))
1075                         (void) strcpy(domain, cp + 1);
1076                 else
1077                         domain[0] = 0;
1078         }
1079         cp = NULL;
1080         if (!numeric_addr && !IN6_IS_ADDR_UNSPECIFIED(in6p)) {
1081                 hp = gethostbyaddr(in6p, sizeof(*in6p), AF_INET6);
1082                 if (hp) {
1083                         if ((cp = strchr(hp->h_name, '.')) &&
1084                             !strcmp(cp + 1, domain))
1085                                 *cp = 0;
1086                         cp = hp->h_name;
1087                 }
1088         }
1089         if (IN6_IS_ADDR_UNSPECIFIED(in6p))
1090                 strcpy(line, "*");
1091         else if (cp)
1092                 strcpy(line, cp);
1093         else
1094                 sprintf(line, "%s",
1095                         inet_ntop(AF_INET6, (void *)in6p, ntop_buf,
1096                                 sizeof(ntop_buf)));
1097         return (line);
1098 }
1099 #endif /*INET6*/