usr.bin/netstat/inet6.c

   1 /*      BSDI inet.c,v 2.3 1995/10/24 02:19:29 prb Exp   */
   2 /*-
   3  * SPDX-License-Identifier: BSD-3-Clause
   4  *
   5  * Copyright (c) 1983, 1988, 1993
   6  *      The Regents of the University of California.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of the University nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 #if 0
  34 #ifndef lint
  35 static char sccsid[] = "@(#)inet6.c     8.4 (Berkeley) 4/20/94";
  36 #endif /* not lint */
  37 #endif
  38
  39 #include <sys/cdefs.h>
  40 #ifdef INET6
  41 #include <sys/param.h>
  42 #include <sys/socket.h>
  43 #include <sys/socketvar.h>
  44 #include <sys/ioctl.h>
  45 #include <sys/mbuf.h>
  46 #include <sys/protosw.h>
  47
  48 #include <net/route.h>
  49 #include <net/if.h>
  50 #include <netinet/in.h>
  51 #include <netinet/ip6.h>
  52 #include <netinet/icmp6.h>
  53 #include <netinet/in_systm.h>
  54 #include <netinet6/in6_pcb.h>
  55 #include <netinet6/in6_var.h>
  56 #include <netinet6/ip6_var.h>
  57 #include <netinet6/pim6_var.h>
  58 #include <netinet6/raw_ip6.h>
  59
  60 #include <arpa/inet.h>
  61 #include <netdb.h>
  62
  63 #include <err.h>
  64 #include <stdint.h>
  65 #include <stdio.h>
  66 #include <stdbool.h>
  67 #include <errno.h>
  68 #include <string.h>
  69 #include <unistd.h>
  70 #include <libxo/xo.h>
  71 #include "netstat.h"
  72
  73 static char ntop_buf[INET6_ADDRSTRLEN];
  74
  75 static  const char *ip6nh[] = {
  76         "hop by hop",
  77         "ICMP",
  78         "IGMP",
  79         "#3",
  80         "IP",
  81         "#5",
  82         "TCP",
  83         "#7",
  84         "#8",
  85         "#9",
  86         "#10",
  87         "#11",
  88         "#12",
  89         "#13",
  90         "#14",
  91         "#15",
  92         "#16",
  93         "UDP",
  94         "#18",
  95         "#19",
  96         "#20",
  97         "#21",
  98         "IDP",
  99         "#23",
 100         "#24",
 101         "#25",
 102         "#26",
 103         "#27",
 104         "#28",
 105         "TP",
 106         "#30",
 107         "#31",
 108         "#32",
 109         "#33",
 110         "#34",
 111         "#35",
 112         "#36",
 113         "#37",
 114         "#38",
 115         "#39",
 116         "#40",
 117         "IP6",
 118         "#42",
 119         "routing",
 120         "fragment",
 121         "#45",
 122         "#46",
 123         "#47",
 124         "#48",
 125         "#49",
 126         "ESP",
 127         "AH",
 128         "#52",
 129         "#53",
 130         "#54",
 131         "#55",
 132         "#56",
 133         "#57",
 134         "ICMP6",
 135         "no next header",
 136         "destination option",
 137         "#61",
 138         "mobility",
 139         "#63",
 140         "#64",
 141         "#65",
 142         "#66",
 143         "#67",
 144         "#68",
 145         "#69",
 146         "#70",
 147         "#71",
 148         "#72",
 149         "#73",
 150         "#74",
 151         "#75",
 152         "#76",
 153         "#77",
 154         "#78",
 155         "#79",
 156         "ISOIP",
 157         "#81",
 158         "#82",
 159         "#83",
 160         "#84",
 161         "#85",
 162         "#86",
 163         "#87",
 164         "#88",
 165         "OSPF",
 166         "#80",
 167         "#91",
 168         "#92",
 169         "#93",
 170         "#94",
 171         "#95",
 172         "#96",
 173         "Ethernet",
 174         "#98",
 175         "#99",
 176         "#100",
 177         "#101",
 178         "#102",
 179         "PIM",
 180         "#104",
 181         "#105",
 182         "#106",
 183         "#107",
 184         "#108",
 185         "#109",
 186         "#110",
 187         "#111",
 188         "#112",
 189         "#113",
 190         "#114",
 191         "#115",
 192         "#116",
 193         "#117",
 194         "#118",
 195         "#119",
 196         "#120",
 197         "#121",
 198         "#122",
 199         "#123",
 200         "#124",
 201         "#125",
 202         "#126",
 203         "#127",
 204         "#128",
 205         "#129",
 206         "#130",
 207         "#131",
 208         "SCTP",
 209         "#133",
 210         "#134",
 211         "#135",
 212         "UDPLite",
 213         "#137",
 214         "#138",
 215         "#139",
 216         "#140",
 217         "#141",
 218         "#142",
 219         "#143",
 220         "#144",
 221         "#145",
 222         "#146",
 223         "#147",
 224         "#148",
 225         "#149",
 226         "#150",
 227         "#151",
 228         "#152",
 229         "#153",
 230         "#154",
 231         "#155",
 232         "#156",
 233         "#157",
 234         "#158",
 235         "#159",
 236         "#160",
 237         "#161",
 238         "#162",
 239         "#163",
 240         "#164",
 241         "#165",
 242         "#166",
 243         "#167",
 244         "#168",
 245         "#169",
 246         "#170",
 247         "#171",
 248         "#172",
 249         "#173",
 250         "#174",
 251         "#175",
 252         "#176",
 253         "#177",
 254         "#178",
 255         "#179",
 256         "#180",
 257         "#181",
 258         "#182",
 259         "#183",
 260         "#184",
 261         "#185",
 262         "#186",
 263         "#187",
 264         "#188",
 265         "#189",
 266         "#180",
 267         "#191",
 268         "#192",
 269         "#193",
 270         "#194",
 271         "#195",
 272         "#196",
 273         "#197",
 274         "#198",
 275         "#199",
 276         "#200",
 277         "#201",
 278         "#202",
 279         "#203",
 280         "#204",
 281         "#205",
 282         "#206",
 283         "#207",
 284         "#208",
 285         "#209",
 286         "#210",
 287         "#211",
 288         "#212",
 289         "#213",
 290         "#214",
 291         "#215",
 292         "#216",
 293         "#217",
 294         "#218",
 295         "#219",
 296         "#220",
 297         "#221",
 298         "#222",
 299         "#223",
 300         "#224",
 301         "#225",
 302         "#226",
 303         "#227",
 304         "#228",
 305         "#229",
 306         "#230",
 307         "#231",
 308         "#232",
 309         "#233",
 310         "#234",
 311         "#235",
 312         "#236",
 313         "#237",
 314         "#238",
 315         "#239",
 316         "#240",
 317         "#241",
 318         "#242",
 319         "#243",
 320         "#244",
 321         "#245",
 322         "#246",
 323         "#247",
 324         "#248",
 325         "#249",
 326         "#250",
 327         "#251",
 328         "#252",
 329         "#253",
 330         "#254",
 331         "#255",
 332 };
 333
 334 static const char *srcrule_str[] = {
 335         "first candidate",
 336         "same address",
 337         "appropriate scope",
 338         "deprecated address",
 339         "home address",
 340         "outgoing interface",
 341         "matching label",
 342         "public/temporary address",
 343         "alive interface",
 344         "better virtual status",
 345         "preferred source",
 346         "rule #11",
 347         "rule #12",
 348         "rule #13",
 349         "longest match",
 350         "rule #15",
 351 };
 352
 353 /*
 354  * Dump IP6 statistics structure.
 355  */
 356 void
 357 ip6_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
 358 {
 359         struct ip6stat ip6stat;
 360         int first, i;
 361
 362         if (fetch_stats("net.inet6.ip6.stats", off, &ip6stat,
 363             sizeof(ip6stat), kread_counters) != 0)
 364                 return;
 365
 366         xo_open_container(name);
 367         xo_emit("{T:/%s}:\n", name);
 368
 369 #define p(f, m) if (ip6stat.f || sflag <= 1) \
 370         xo_emit(m, (uintmax_t)ip6stat.f, plural(ip6stat.f))
 371 #define p1a(f, m) if (ip6stat.f || sflag <= 1) \
 372         xo_emit(m, (uintmax_t)ip6stat.f)
 373
 374         p(ip6s_total, "\t{:received-packets/%ju} "
 375             "{N:/total packet%s received}\n");
 376         p1a(ip6s_toosmall, "\t{:dropped-below-minimum-size/%ju} "
 377             "{N:/with size smaller than minimum}\n");
 378         p1a(ip6s_tooshort, "\t{:dropped-short-packets/%ju} "
 379             "{N:/with data size < data length}\n");
 380         p1a(ip6s_badoptions, "\t{:dropped-bad-options/%ju} "
 381             "{N:/with bad options}\n");
 382         p1a(ip6s_badvers, "\t{:dropped-bad-version/%ju} "
 383             "{N:/with incorrect version number}\n");
 384         p(ip6s_fragments, "\t{:received-fragments/%ju} "
 385             "{N:/fragment%s received}\n");
 386         p(ip6s_fragdropped, "\t{:dropped-fragment/%ju} "
 387             "{N:/fragment%s dropped (dup or out of space)}\n");
 388         p(ip6s_fragtimeout, "\t{:dropped-fragment-after-timeout/%ju} "
 389             "{N:/fragment%s dropped after timeout}\n");
 390         p(ip6s_fragoverflow, "\t{:dropped-fragments-overflow/%ju} "
 391             "{N:/fragment%s that exceeded limit}\n");
 392         p(ip6s_atomicfrags, "\t{:atomic-fragments/%ju} "
 393             "{N:/atomic fragment%s}\n");
 394         p(ip6s_reassembled, "\t{:reassembled-packets/%ju} "
 395             "{N:/packet%s reassembled ok}\n");
 396         p(ip6s_delivered, "\t{:received-local-packets/%ju} "
 397             "{N:/packet%s for this host}\n");
 398         p(ip6s_forward, "\t{:forwarded-packets/%ju} "
 399             "{N:/packet%s forwarded}\n");
 400         p(ip6s_cantforward, "\t{:packets-not-forwardable/%ju} "
 401             "{N:/packet%s not forwardable}\n");
 402         p(ip6s_redirectsent, "\t{:sent-redirects/%ju} "
 403             "{N:/redirect%s sent}\n");
 404         p(ip6s_localout, "\t{:sent-packets/%ju} "
 405             "{N:/packet%s sent from this host}\n");
 406         p(ip6s_rawout, "\t{:send-packets-fabricated-header/%ju} "
 407             "{N:/packet%s sent with fabricated ip header}\n");
 408         p(ip6s_odropped, "\t{:discard-no-mbufs/%ju} "
 409             "{N:/output packet%s dropped due to no bufs, etc.}\n");
 410         p(ip6s_noroute, "\t{:discard-no-route/%ju} "
 411             "{N:/output packet%s discarded due to no route}\n");
 412         p(ip6s_fragmented, "\t{:sent-fragments/%ju} "
 413             "{N:/output datagram%s fragmented}\n");
 414         p(ip6s_ofragments, "\t{:fragments-created/%ju} "
 415             "{N:/fragment%s created}\n");
 416         p(ip6s_cantfrag, "\t{:discard-cannot-fragment/%ju} "
 417             "{N:/datagram%s that can't be fragmented}\n");
 418         p(ip6s_badscope, "\t{:discard-scope-violations/%ju} "
 419             "{N:/packet%s that violated scope rules}\n");
 420         p(ip6s_notmember, "\t{:multicast-no-join-packets/%ju} "
 421             "{N:/multicast packet%s which we don't join}\n");
 422         for (first = 1, i = 0; i < IP6S_HDRCNT; i++)
 423                 if (ip6stat.ip6s_nxthist[i] != 0) {
 424                         if (first) {
 425                                 xo_emit("\t{T:Input histogram}:\n");
 426                                 xo_open_list("input-histogram");
 427                                 first = 0;
 428                         }
 429                         xo_open_instance("input-histogram");
 430                         xo_emit("\t\t{k:name/%s}: {:count/%ju}\n", ip6nh[i],
 431                             (uintmax_t)ip6stat.ip6s_nxthist[i]);
 432                         xo_close_instance("input-histogram");
 433                 }
 434         if (!first)
 435                 xo_close_list("input-histogram");
 436
 437         xo_open_container("mbuf-statistics");
 438         xo_emit("\t{T:Mbuf statistics}:\n");
 439         xo_emit("\t\t{:one-mbuf/%ju} {N:/one mbuf}\n",
 440             (uintmax_t)ip6stat.ip6s_m1);
 441         for (first = 1, i = 0; i < IP6S_M2MMAX; i++) {
 442                 char ifbuf[IFNAMSIZ];
 443                 if (ip6stat.ip6s_m2m[i] != 0) {
 444                         if (first) {
 445                                 xo_emit("\t\t{N:two or more mbuf}:\n");
 446                                 xo_open_list("mbuf-data");
 447                                 first = 0;
 448                         }
 449                         xo_open_instance("mbuf-data");
 450                         xo_emit("\t\t\t{k:name/%s}= {:count/%ju}\n",
 451                             if_indextoname(i, ifbuf),
 452                             (uintmax_t)ip6stat.ip6s_m2m[i]);
 453                         xo_close_instance("mbuf-data");
 454                 }
 455         }
 456         if (!first)
 457                 xo_close_list("mbuf-data");
 458         xo_emit("\t\t{:one-extra-mbuf/%ju} {N:one ext mbuf}\n",
 459             (uintmax_t)ip6stat.ip6s_mext1);
 460         xo_emit("\t\t{:two-or-more-extra-mbufs/%ju} "
 461             "{N:/two or more ext mbuf}\n", (uintmax_t)ip6stat.ip6s_mext2m);
 462         xo_close_container("mbuf-statistics");
 463
 464         p(ip6s_exthdrtoolong, "\t{:dropped-header-too-long/%ju} "
 465             "{N:/packet%s whose headers are not contiguous}\n");
 466         p(ip6s_nogif, "\t{:discard-tunnel-no-gif/%ju} "
 467             "{N:/tunneling packet%s that can't find gif}\n");
 468         p(ip6s_toomanyhdr, "\t{:dropped-too-many-headers/%ju} "
 469             "{N:/packet%s discarded because of too many headers}\n");
 470
 471         /* for debugging source address selection */
 472 #define PRINT_SCOPESTAT(s,i) do {\
 473                 switch(i) { /* XXX hardcoding in each case */\
 474                 case 1:\
 475                         p(s, "\t\t{ke:name/interface-locals}{:count/%ju} " \
 476                           "{N:/interface-local%s}\n");  \
 477                         break;\
 478                 case 2:\
 479                         p(s,"\t\t{ke:name/link-locals}{:count/%ju} " \
 480                         "{N:/link-local%s}\n"); \
 481                         break;\
 482                 case 5:\
 483                         p(s,"\t\t{ke:name/site-locals}{:count/%ju} " \
 484                           "{N:/site-local%s}\n");\
 485                         break;\
 486                 case 14:\
 487                         p(s,"\t\t{ke:name/globals}{:count/%ju} " \
 488                           "{N:/global%s}\n");\
 489                         break;\
 490                 default:\
 491                         xo_emit("\t\t{qke:name/%#x}{:count/%ju} " \
 492                                 "{N:/addresses scope=%#x}\n",\
 493                                 i, (uintmax_t)ip6stat.s, i);       \
 494                 }\
 495         } while (0);
 496
 497         xo_open_container("source-address-selection");
 498         p(ip6s_sources_none, "\t{:address-selection-failures/%ju} "
 499             "{N:/failure%s of source address selection}\n");
 500
 501         for (first = 1, i = 0; i < IP6S_SCOPECNT; i++) {
 502                 if (ip6stat.ip6s_sources_sameif[i]) {
 503                         if (first) {
 504                                 xo_open_list("outgoing-interface");
 505                                 xo_emit("\tsource addresses on an outgoing "
 506                                     "I/F\n");
 507                                 first = 0;
 508                         }
 509                         xo_open_instance("outgoing-interface");
 510                         PRINT_SCOPESTAT(ip6s_sources_sameif[i], i);
 511                         xo_close_instance("outgoing-interface");
 512                 }
 513         }
 514         if (!first)
 515                 xo_close_list("outgoing-interface");
 516
 517         for (first = 1, i = 0; i < IP6S_SCOPECNT; i++) {
 518                 if (ip6stat.ip6s_sources_otherif[i]) {
 519                         if (first) {
 520                                 xo_open_list("non-outgoing-interface");
 521                                 xo_emit("\tsource addresses on a non-outgoing "
 522                                     "I/F\n");
 523                                 first = 0;
 524                         }
 525                         xo_open_instance("non-outgoing-interface");
 526                         PRINT_SCOPESTAT(ip6s_sources_otherif[i], i);
 527                         xo_close_instance("non-outgoing-interface");
 528                 }
 529         }
 530         if (!first)
 531                 xo_close_list("non-outgoing-interface");
 532
 533         for (first = 1, i = 0; i < IP6S_SCOPECNT; i++) {
 534                 if (ip6stat.ip6s_sources_samescope[i]) {
 535                         if (first) {
 536                                 xo_open_list("same-source");
 537                                 xo_emit("\tsource addresses of same scope\n");
 538                                 first = 0;
 539                         }
 540                         xo_open_instance("same-source");
 541                         PRINT_SCOPESTAT(ip6s_sources_samescope[i], i);
 542                         xo_close_instance("same-source");
 543                 }
 544         }
 545         if (!first)
 546                 xo_close_list("same-source");
 547
 548         for (first = 1, i = 0; i < IP6S_SCOPECNT; i++) {
 549                 if (ip6stat.ip6s_sources_otherscope[i]) {
 550                         if (first) {
 551                                 xo_open_list("different-scope");
 552                                 xo_emit("\tsource addresses of a different "
 553                                     "scope\n");
 554                                 first = 0;
 555                         }
 556                         xo_open_instance("different-scope");
 557                         PRINT_SCOPESTAT(ip6s_sources_otherscope[i], i);
 558                         xo_close_instance("different-scope");
 559                 }
 560         }
 561         if (!first)
 562                 xo_close_list("different-scope");
 563
 564         for (first = 1, i = 0; i < IP6S_SCOPECNT; i++) {
 565                 if (ip6stat.ip6s_sources_deprecated[i]) {
 566                         if (first) {
 567                                 xo_open_list("deprecated-source");
 568                                 xo_emit("\tdeprecated source addresses\n");
 569                                 first = 0;
 570                         }
 571                         xo_open_instance("deprecated-source");
 572                         PRINT_SCOPESTAT(ip6s_sources_deprecated[i], i);
 573                         xo_close_instance("deprecated-source");
 574                 }
 575         }
 576         if (!first)
 577                 xo_close_list("deprecated-source");
 578
 579         for (first = 1, i = 0; i < IP6S_RULESMAX; i++) {
 580                 if (ip6stat.ip6s_sources_rule[i]) {
 581                         if (first) {
 582                                 xo_open_list("rules-applied");
 583                                 xo_emit("\t{T:Source addresses selection "
 584                                     "rule applied}:\n");
 585                                 first = 0;
 586                         }
 587                         xo_open_instance("rules-applied");
 588                         xo_emit("\t\t{ke:name/%s}{:count/%ju} {d:name/%s}\n",
 589                             srcrule_str[i],
 590                             (uintmax_t)ip6stat.ip6s_sources_rule[i],
 591                             srcrule_str[i]);
 592                         xo_close_instance("rules-applied");
 593                 }
 594         }
 595         if (!first)
 596                 xo_close_list("rules-applied");
 597
 598         xo_close_container("source-address-selection");
 599
 600 #undef p
 601 #undef p1a
 602         xo_close_container(name);
 603 }
 604
 605 /*
 606  * Dump IPv6 per-interface statistics based on RFC 2465.
 607  */
 608 void
 609 ip6_ifstats(char *ifname)
 610 {
 611         struct in6_ifreq ifr;
 612         int s;
 613
 614 #define p(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1)     \
 615         xo_emit(m, (uintmax_t)ifr.ifr_ifru.ifru_stat.f,         \
 616             plural(ifr.ifr_ifru.ifru_stat.f))
 617
 618         if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
 619                 xo_warn("Warning: socket(AF_INET6)");
 620                 return;
 621         }
 622
 623         strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
 624         if (ioctl(s, SIOCGIFSTAT_IN6, (char *)&ifr) < 0) {
 625                 if (errno != EPFNOSUPPORT)
 626                         xo_warn("Warning: ioctl(SIOCGIFSTAT_IN6)");
 627                 goto end;
 628         }
 629
 630         xo_emit("{T:/ip6 on %s}:\n", ifr.ifr_name);
 631
 632         xo_open_instance("ip6-interface-statistics");
 633         xo_emit("{ke:name/%s}", ifr.ifr_name);
 634
 635         p(ifs6_in_receive, "\t{:received-packets/%ju} "
 636             "{N:/total input datagram%s}\n");
 637         p(ifs6_in_hdrerr, "\t{:dropped-invalid-header/%ju} "
 638             "{N:/datagram%s with invalid header received}\n");
 639         p(ifs6_in_toobig, "\t{:dropped-mtu-exceeded/%ju} "
 640             "{N:/datagram%s exceeded MTU received}\n");
 641         p(ifs6_in_noroute, "\t{:dropped-no-route/%ju} "
 642             "{N:/datagram%s with no route received}\n");
 643         p(ifs6_in_addrerr, "\t{:dropped-invalid-destination/%ju} "
 644             "{N:/datagram%s with invalid dst received}\n");
 645         p(ifs6_in_protounknown, "\t{:dropped-unknown-protocol/%ju} "
 646             "{N:/datagram%s with unknown proto received}\n");
 647         p(ifs6_in_truncated, "\t{:dropped-truncated/%ju} "
 648             "{N:/truncated datagram%s received}\n");
 649         p(ifs6_in_discard, "\t{:dropped-discarded/%ju} "
 650             "{N:/input datagram%s discarded}\n");
 651         p(ifs6_in_deliver, "\t{:received-valid-packets/%ju} "
 652             "{N:/datagram%s delivered to an upper layer protocol}\n");
 653         p(ifs6_out_forward, "\t{:sent-forwarded/%ju} "
 654             "{N:/datagram%s forwarded to this interface}\n");
 655         p(ifs6_out_request, "\t{:sent-packets/%ju} "
 656             "{N:/datagram%s sent from an upper layer protocol}\n");
 657         p(ifs6_out_discard, "\t{:discard-packets/%ju} "
 658             "{N:/total discarded output datagram%s}\n");
 659         p(ifs6_out_fragok, "\t{:discard-fragments/%ju} "
 660             "{N:/output datagram%s fragmented}\n");
 661         p(ifs6_out_fragfail, "\t{:fragments-failed/%ju} "
 662             "{N:/output datagram%s failed on fragment}\n");
 663         p(ifs6_out_fragcreat, "\t{:fragments-created/%ju} "
 664             "{N:/output datagram%s succeeded on fragment}\n");
 665         p(ifs6_reass_reqd, "\t{:reassembly-required/%ju} "
 666             "{N:/incoming datagram%s fragmented}\n");
 667         p(ifs6_reass_ok, "\t{:reassembled-packets/%ju} "
 668             "{N:/datagram%s reassembled}\n");
 669         p(ifs6_reass_fail, "\t{:reassembly-failed/%ju} "
 670             "{N:/datagram%s failed on reassembly}\n");
 671         p(ifs6_in_mcast, "\t{:received-multicast/%ju} "
 672             "{N:/multicast datagram%s received}\n");
 673         p(ifs6_out_mcast, "\t{:sent-multicast/%ju} "
 674             "{N:/multicast datagram%s sent}\n");
 675
 676  end:
 677         xo_close_instance("ip6-interface-statistics");
 678         close(s);
 679
 680 #undef p
 681 }
 682
 683 static  const char *icmp6names[] = {
 684         "#0",
 685         "unreach",
 686         "packet too big",
 687         "time exceed",
 688         "parameter problem",
 689         "#5",
 690         "#6",
 691         "#7",
 692         "#8",
 693         "#9",
 694         "#10",
 695         "#11",
 696         "#12",
 697         "#13",
 698         "#14",
 699         "#15",
 700         "#16",
 701         "#17",
 702         "#18",
 703         "#19",
 704         "#20",
 705         "#21",
 706         "#22",
 707         "#23",
 708         "#24",
 709         "#25",
 710         "#26",
 711         "#27",
 712         "#28",
 713         "#29",
 714         "#30",
 715         "#31",
 716         "#32",
 717         "#33",
 718         "#34",
 719         "#35",
 720         "#36",
 721         "#37",
 722         "#38",
 723         "#39",
 724         "#40",
 725         "#41",
 726         "#42",
 727         "#43",
 728         "#44",
 729         "#45",
 730         "#46",
 731         "#47",
 732         "#48",
 733         "#49",
 734         "#50",
 735         "#51",
 736         "#52",
 737         "#53",
 738         "#54",
 739         "#55",
 740         "#56",
 741         "#57",
 742         "#58",
 743         "#59",
 744         "#60",
 745         "#61",
 746         "#62",
 747         "#63",
 748         "#64",
 749         "#65",
 750         "#66",
 751         "#67",
 752         "#68",
 753         "#69",
 754         "#70",
 755         "#71",
 756         "#72",
 757         "#73",
 758         "#74",
 759         "#75",
 760         "#76",
 761         "#77",
 762         "#78",
 763         "#79",
 764         "#80",
 765         "#81",
 766         "#82",
 767         "#83",
 768         "#84",
 769         "#85",
 770         "#86",
 771         "#87",
 772         "#88",
 773         "#89",
 774         "#80",
 775         "#91",
 776         "#92",
 777         "#93",
 778         "#94",
 779         "#95",
 780         "#96",
 781         "#97",
 782         "#98",
 783         "#99",
 784         "#100",
 785         "#101",
 786         "#102",
 787         "#103",
 788         "#104",
 789         "#105",
 790         "#106",
 791         "#107",
 792         "#108",
 793         "#109",
 794         "#110",
 795         "#111",
 796         "#112",
 797         "#113",
 798         "#114",
 799         "#115",
 800         "#116",
 801         "#117",
 802         "#118",
 803         "#119",
 804         "#120",
 805         "#121",
 806         "#122",
 807         "#123",
 808         "#124",
 809         "#125",
 810         "#126",
 811         "#127",
 812         "echo",
 813         "echo reply",
 814         "multicast listener query",
 815         "MLDv1 listener report",
 816         "MLDv1 listener done",
 817         "router solicitation",
 818         "router advertisement",
 819         "neighbor solicitation",
 820         "neighbor advertisement",
 821         "redirect",
 822         "router renumbering",
 823         "node information request",
 824         "node information reply",
 825         "inverse neighbor solicitation",
 826         "inverse neighbor advertisement",
 827         "MLDv2 listener report",
 828         "#144",
 829         "#145",
 830         "#146",
 831         "#147",
 832         "#148",
 833         "#149",
 834         "#150",
 835         "#151",
 836         "#152",
 837         "#153",
 838         "#154",
 839         "#155",
 840         "#156",
 841         "#157",
 842         "#158",
 843         "#159",
 844         "#160",
 845         "#161",
 846         "#162",
 847         "#163",
 848         "#164",
 849         "#165",
 850         "#166",
 851         "#167",
 852         "#168",
 853         "#169",
 854         "#170",
 855         "#171",
 856         "#172",
 857         "#173",
 858         "#174",
 859         "#175",
 860         "#176",
 861         "#177",
 862         "#178",
 863         "#179",
 864         "#180",
 865         "#181",
 866         "#182",
 867         "#183",
 868         "#184",
 869         "#185",
 870         "#186",
 871         "#187",
 872         "#188",
 873         "#189",
 874         "#180",
 875         "#191",
 876         "#192",
 877         "#193",
 878         "#194",
 879         "#195",
 880         "#196",
 881         "#197",
 882         "#198",
 883         "#199",
 884         "#200",
 885         "#201",
 886         "#202",
 887         "#203",
 888         "#204",
 889         "#205",
 890         "#206",
 891         "#207",
 892         "#208",
 893         "#209",
 894         "#210",
 895         "#211",
 896         "#212",
 897         "#213",
 898         "#214",
 899         "#215",
 900         "#216",
 901         "#217",
 902         "#218",
 903         "#219",
 904         "#220",
 905         "#221",
 906         "#222",
 907         "#223",
 908         "#224",
 909         "#225",
 910         "#226",
 911         "#227",
 912         "#228",
 913         "#229",
 914         "#230",
 915         "#231",
 916         "#232",
 917         "#233",
 918         "#234",
 919         "#235",
 920         "#236",
 921         "#237",
 922         "#238",
 923         "#239",
 924         "#240",
 925         "#241",
 926         "#242",
 927         "#243",
 928         "#244",
 929         "#245",
 930         "#246",
 931         "#247",
 932         "#248",
 933         "#249",
 934         "#250",
 935         "#251",
 936         "#252",
 937         "#253",
 938         "#254",
 939         "#255",
 940 };
 941
 942 /*
 943  * Dump ICMP6 statistics.
 944  */
 945 void
 946 icmp6_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
 947 {
 948         struct icmp6stat icmp6stat;
 949         int i, first;
 950
 951         if (fetch_stats("net.inet6.icmp6.stats", off, &icmp6stat,
 952             sizeof(icmp6stat), kread_counters) != 0)
 953                 return;
 954
 955         xo_emit("{T:/%s}:\n", name);
 956         xo_open_container(name);
 957
 958 #define p(f, m) if (icmp6stat.f || sflag <= 1) \
 959         xo_emit(m, (uintmax_t)icmp6stat.f, plural(icmp6stat.f))
 960 #define p_5(f, m) if (icmp6stat.f || sflag <= 1) \
 961         xo_emit(m, (uintmax_t)icmp6stat.f)
 962
 963         p(icp6s_error, "\t{:icmp6-calls/%ju} "
 964             "{N:/call%s to icmp6_error}\n");
 965         p(icp6s_canterror, "\t{:errors-not-generated-from-message/%ju} "
 966             "{N:/error%s not generated in response to an icmp6 message}\n");
 967         p(icp6s_toofreq, "\t{:errors-discarded-by-rate-limitation/%ju} "
 968             "{N:/error%s not generated because of rate limitation}\n");
 969 #define NELEM (int)(sizeof(icmp6stat.icp6s_outhist)/sizeof(icmp6stat.icp6s_outhist[0]))
 970         for (first = 1, i = 0; i < NELEM; i++)
 971                 if (icmp6stat.icp6s_outhist[i] != 0) {
 972                         if (first) {
 973                                 xo_open_list("output-histogram");
 974                                 xo_emit("\t{T:Output histogram}:\n");
 975                                 first = 0;
 976                         }
 977                         xo_open_instance("output-histogram");
 978                         xo_emit("\t\t{k:name/%s}: {:count/%ju}\n",
 979                             icmp6names[i],
 980                             (uintmax_t)icmp6stat.icp6s_outhist[i]);
 981                         xo_close_instance("output-histogram");
 982                 }
 983         if (!first)
 984                 xo_close_list("output-histogram");
 985 #undef NELEM
 986
 987         p(icp6s_badcode, "\t{:dropped-bad-code/%ju} "
 988             "{N:/message%s with bad code fields}\n");
 989         p(icp6s_tooshort, "\t{:dropped-too-short/%ju} "
 990             "{N:/message%s < minimum length}\n");
 991         p(icp6s_checksum, "\t{:dropped-bad-checksum/%ju} "
 992             "{N:/bad checksum%s}\n");
 993         p(icp6s_badlen, "\t{:dropped-bad-length/%ju} "
 994             "{N:/message%s with bad length}\n");
 995         p(icp6s_dropped, "{:dropped-no-entry/%ju} "
 996             "{N:/total packet%s dropped due to failed NDP resolution}\n");
 997 #define NELEM (int)(sizeof(icmp6stat.icp6s_inhist)/sizeof(icmp6stat.icp6s_inhist[0]))
 998         for (first = 1, i = 0; i < NELEM; i++)
 999                 if (icmp6stat.icp6s_inhist[i] != 0) {
1000                         if (first) {
1001                                 xo_open_list("input-histogram");
1002                                 xo_emit("\t{T:Input histogram}:\n");
1003                                 first = 0;
1004                         }
1005                         xo_open_instance("input-histogram");
1006                         xo_emit("\t\t{k:name/%s}: {:count/%ju}\n",
1007                             icmp6names[i],
1008                             (uintmax_t)icmp6stat.icp6s_inhist[i]);
1009                         xo_close_instance("input-histogram");
1010                 }
1011         if (!first)
1012                 xo_close_list("input-histogram");
1013 #undef NELEM
1014         xo_emit("\t{T:Histogram of error messages to be generated}:\n");
1015         xo_open_container("errors");
1016         p_5(icp6s_odst_unreach_noroute, "\t\t{:no-route/%ju} "
1017             "{N:/no route}\n");
1018         p_5(icp6s_odst_unreach_admin, "\t\t{:admin-prohibited/%ju} "
1019             "{N:/administratively prohibited}\n");
1020         p_5(icp6s_odst_unreach_beyondscope, "\t\t{:beyond-scope/%ju} "
1021             "{N:/beyond scope}\n");
1022         p_5(icp6s_odst_unreach_addr, "\t\t{:address-unreachable/%ju} "
1023             "{N:/address unreachable}\n");
1024         p_5(icp6s_odst_unreach_noport, "\t\t{:port-unreachable/%ju} "
1025             "{N:/port unreachable}\n");
1026         p_5(icp6s_opacket_too_big, "\t\t{:packet-too-big/%ju} "
1027             "{N:/packet too big}\n");
1028         p_5(icp6s_otime_exceed_transit, "\t\t{:time-exceed-transmit/%ju} "
1029             "{N:/time exceed transit}\n");
1030         p_5(icp6s_otime_exceed_reassembly, "\t\t{:time-exceed-reassembly/%ju} "
1031             "{N:/time exceed reassembly}\n");
1032         p_5(icp6s_oparamprob_header, "\t\t{:bad-header/%ju} "
1033             "{N:/erroneous header field}\n");
1034         p_5(icp6s_oparamprob_nextheader, "\t\t{:bad-next-header/%ju} "
1035             "{N:/unrecognized next header}\n");
1036         p_5(icp6s_oparamprob_option, "\t\t{:bad-option/%ju} "
1037             "{N:/unrecognized option}\n");
1038         p_5(icp6s_oredirect, "\t\t{:redirects/%ju} "
1039             "{N:/redirect}\n");
1040         p_5(icp6s_ounknown, "\t\t{:unknown/%ju} {N:unknown}\n");
1041
1042         p(icp6s_reflect, "\t{:reflect/%ju} "
1043             "{N:/message response%s generated}\n");
1044         p(icp6s_nd_toomanyopt, "\t{:too-many-nd-options/%ju} "
1045             "{N:/message%s with too many ND options}\n");
1046         p(icp6s_nd_badopt, "\t{:bad-nd-options/%ju} "
1047             "{N:/message%s with bad ND options}\n");
1048         p(icp6s_badns, "\t{:bad-neighbor-solicitation/%ju} "
1049             "{N:/bad neighbor solicitation message%s}\n");
1050         p(icp6s_badna, "\t{:bad-neighbor-advertisement/%ju} "
1051             "{N:/bad neighbor advertisement message%s}\n");
1052         p(icp6s_badrs, "\t{:bad-router-solicitation/%ju} "
1053             "{N:/bad router solicitation message%s}\n");
1054         p(icp6s_badra, "\t{:bad-router-advertisement/%ju} "
1055             "{N:/bad router advertisement message%s}\n");
1056         p(icp6s_badredirect, "\t{:bad-redirect/%ju} "
1057             "{N:/bad redirect message%s}\n");
1058         p(icp6s_overflowdefrtr, "\t{:default-routers-overflows/%ju} "
1059             "{N:/default routers overflow%s}\n");
1060         p(icp6s_overflowprfx, "\t{:prefixes-overflows/%ju} "
1061             "{N:/prefix overflow%s}\n");
1062         p(icp6s_overflownndp, "\t{:neighbour-entries-overflows/%ju} "
1063             "{N:/neighbour entries overflow%s}\n");
1064         p(icp6s_overflowredirect, "\t{:redirect-overflows/%ju} "
1065             "{N:/redirect overflow%s}\n");
1066         p(icp6s_invlhlim, "\t{:dropped-invalid-hop-limit/%ju} "
1067             "{N:/message%s with invalid hop limit}\n");
1068         xo_close_container("errors");
1069         p(icp6s_pmtuchg, "\t{:path-mtu-changes/%ju} {N:/path MTU change%s}\n");
1070 #undef p
1071 #undef p_5
1072         xo_close_container(name);
1073 }
1074
1075 /*
1076  * Dump ICMPv6 per-interface statistics based on RFC 2466.
1077  */
1078 void
1079 icmp6_ifstats(char *ifname)
1080 {
1081         struct in6_ifreq ifr;
1082         int s;
1083
1084 #define p(f, m) if (ifr.ifr_ifru.ifru_icmp6stat.f || sflag <= 1)        \
1085         xo_emit(m, (uintmax_t)ifr.ifr_ifru.ifru_icmp6stat.f,            \
1086             plural(ifr.ifr_ifru.ifru_icmp6stat.f))
1087 #define p2(f, m) if (ifr.ifr_ifru.ifru_icmp6stat.f || sflag <= 1)       \
1088         xo_emit(m, (uintmax_t)ifr.ifr_ifru.ifru_icmp6stat.f,            \
1089             pluralies(ifr.ifr_ifru.ifru_icmp6stat.f))
1090
1091         if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
1092                 xo_warn("Warning: socket(AF_INET6)");
1093                 return;
1094         }
1095
1096         strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1097         if (ioctl(s, SIOCGIFSTAT_ICMP6, (char *)&ifr) < 0) {
1098                 if (errno != EPFNOSUPPORT)
1099                         xo_warn("Warning: ioctl(SIOCGIFSTAT_ICMP6)");
1100                 goto end;
1101         }
1102
1103         xo_emit("{T:/icmp6 on %s}:\n", ifr.ifr_name);
1104
1105         xo_open_instance("icmp6-interface-statistics");
1106         xo_emit("{ke:name/%s}", ifr.ifr_name);
1107         p(ifs6_in_msg, "\t{:received-packets/%ju} "
1108             "{N:/total input message%s}\n");
1109         p(ifs6_in_error, "\t{:received-errors/%ju} "
1110             "{N:/total input error message%s}\n");
1111         p(ifs6_in_dstunreach, "\t{:received-destination-unreachable/%ju} "
1112             "{N:/input destination unreachable error%s}\n");
1113         p(ifs6_in_adminprohib, "\t{:received-admin-prohibited/%ju} "
1114             "{N:/input administratively prohibited error%s}\n");
1115         p(ifs6_in_timeexceed, "\t{:received-time-exceeded/%ju} "
1116             "{N:/input time exceeded error%s}\n");
1117         p(ifs6_in_paramprob, "\t{:received-bad-parameter/%ju} "
1118             "{N:/input parameter problem error%s}\n");
1119         p(ifs6_in_pkttoobig, "\t{:received-packet-too-big/%ju} "
1120             "{N:/input packet too big error%s}\n");
1121         p(ifs6_in_echo, "\t{:received-echo-requests/%ju} "
1122             "{N:/input echo request%s}\n");
1123         p2(ifs6_in_echoreply, "\t{:received-echo-replies/%ju} "
1124             "{N:/input echo repl%s}\n");
1125         p(ifs6_in_routersolicit, "\t{:received-router-solicitation/%ju} "
1126             "{N:/input router solicitation%s}\n");
1127         p(ifs6_in_routeradvert, "\t{:received-router-advertisement/%ju} "
1128             "{N:/input router advertisement%s}\n");
1129         p(ifs6_in_neighborsolicit, "\t{:received-neighbor-solicitation/%ju} "
1130             "{N:/input neighbor solicitation%s}\n");
1131         p(ifs6_in_neighboradvert, "\t{:received-neighbor-advertisement/%ju} "
1132             "{N:/input neighbor advertisement%s}\n");
1133         p(ifs6_in_redirect, "\t{received-redirects/%ju} "
1134             "{N:/input redirect%s}\n");
1135         p2(ifs6_in_mldquery, "\t{:received-mld-queries/%ju} "
1136             "{N:/input MLD quer%s}\n");
1137         p(ifs6_in_mldreport, "\t{:received-mld-reports/%ju} "
1138             "{N:/input MLD report%s}\n");
1139         p(ifs6_in_mlddone, "\t{:received-mld-done/%ju} "
1140             "{N:/input MLD done%s}\n");
1141
1142         p(ifs6_out_msg, "\t{:sent-packets/%ju} "
1143             "{N:/total output message%s}\n");
1144         p(ifs6_out_error, "\t{:sent-errors/%ju} "
1145             "{N:/total output error message%s}\n");
1146         p(ifs6_out_dstunreach, "\t{:sent-destination-unreachable/%ju} "
1147             "{N:/output destination unreachable error%s}\n");
1148         p(ifs6_out_adminprohib, "\t{:sent-admin-prohibited/%ju} "
1149             "{N:/output administratively prohibited error%s}\n");
1150         p(ifs6_out_timeexceed, "\t{:sent-time-exceeded/%ju} "
1151             "{N:/output time exceeded error%s}\n");
1152         p(ifs6_out_paramprob, "\t{:sent-bad-parameter/%ju} "
1153             "{N:/output parameter problem error%s}\n");
1154         p(ifs6_out_pkttoobig, "\t{:sent-packet-too-big/%ju} "
1155             "{N:/output packet too big error%s}\n");
1156         p(ifs6_out_echo, "\t{:sent-echo-requests/%ju} "
1157             "{N:/output echo request%s}\n");
1158         p2(ifs6_out_echoreply, "\t{:sent-echo-replies/%ju} "
1159             "{N:/output echo repl%s}\n");
1160         p(ifs6_out_routersolicit, "\t{:sent-router-solicitation/%ju} "
1161             "{N:/output router solicitation%s}\n");
1162         p(ifs6_out_routeradvert, "\t{:sent-router-advertisement/%ju} "
1163             "{N:/output router advertisement%s}\n");
1164         p(ifs6_out_neighborsolicit, "\t{:sent-neighbor-solicitation/%ju} "
1165             "{N:/output neighbor solicitation%s}\n");
1166         p(ifs6_out_neighboradvert, "\t{:sent-neighbor-advertisement/%ju} "
1167             "{N:/output neighbor advertisement%s}\n");
1168         p(ifs6_out_redirect, "\t{:sent-redirects/%ju} "
1169             "{N:/output redirect%s}\n");
1170         p2(ifs6_out_mldquery, "\t{:sent-mld-queries/%ju} "
1171             "{N:/output MLD quer%s}\n");
1172         p(ifs6_out_mldreport, "\t{:sent-mld-reports/%ju} "
1173             "{N:/output MLD report%s}\n");
1174         p(ifs6_out_mlddone, "\t{:sent-mld-dones/%ju} "
1175             "{N:/output MLD done%s}\n");
1176
1177 end:
1178         xo_close_instance("icmp6-interface-statistics");
1179         close(s);
1180 #undef p
1181 }
1182
1183 /*
1184  * Dump PIM statistics structure.
1185  */
1186 void
1187 pim6_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1188 {
1189         struct pim6stat pim6stat;
1190
1191         if (fetch_stats("net.inet6.pim.stats", off, &pim6stat,
1192             sizeof(pim6stat), kread) != 0)
1193                 return;
1194
1195         xo_emit("{T:/%s}:\n", name);
1196         xo_open_container(name);
1197
1198 #define p(f, m) if (pim6stat.f || sflag <= 1) \
1199         xo_emit(m, (uintmax_t)pim6stat.f, plural(pim6stat.f))
1200
1201         p(pim6s_rcv_total, "\t{:received-packets/%ju} "
1202             "{N:/message%s received}\n");
1203         p(pim6s_rcv_tooshort, "\t{:dropped-too-short/%ju} "
1204             "{N:/message%s received with too few bytes}\n");
1205         p(pim6s_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
1206             "{N:/message%s received with bad checksum}\n");
1207         p(pim6s_rcv_badversion, "\t{:dropped-bad-version/%ju} "
1208             "{N:/message%s received with bad version}\n");
1209         p(pim6s_rcv_registers, "\t{:received-registers/%ju} "
1210             "{N:/register%s received}\n");
1211         p(pim6s_rcv_badregisters, "\t{:received-bad-registers/%ju} "
1212             "{N:/bad register%s received}\n");
1213         p(pim6s_snd_registers, "\t{:sent-registers/%ju} "
1214             "{N:/register%s sent}\n");
1215 #undef p
1216         xo_close_container(name);
1217 }
1218
1219 /*
1220  * Dump raw ip6 statistics structure.
1221  */
1222 void
1223 rip6_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1224 {
1225         struct rip6stat rip6stat;
1226         u_quad_t delivered;
1227
1228         if (fetch_stats("net.inet6.ip6.rip6stats", off, &rip6stat,
1229             sizeof(rip6stat), kread_counters) != 0)
1230                 return;
1231
1232         xo_emit("{T:/%s}:\n", name);
1233         xo_open_container(name);
1234
1235 #define p(f, m) if (rip6stat.f || sflag <= 1) \
1236         xo_emit(m, (uintmax_t)rip6stat.f, plural(rip6stat.f))
1237
1238         p(rip6s_ipackets, "\t{:received-packets/%ju} "
1239             "{N:/message%s received}\n");
1240         p(rip6s_isum, "\t{:input-checksum-computation/%ju} "
1241             "{N:/checksum calculation%s on inbound}\n");
1242         p(rip6s_badsum, "\t{:received-bad-checksum/%ju} "
1243             "{N:/message%s with bad checksum}\n");
1244         p(rip6s_nosock, "\t{:dropped-no-socket/%ju} "
1245             "{N:/message%s dropped due to no socket}\n");
1246         p(rip6s_nosockmcast, "\t{:dropped-multicast-no-socket/%ju} "
1247             "{N:/multicast message%s dropped due to no socket}\n");
1248         p(rip6s_fullsock, "\t{:dropped-full-socket-buffer/%ju} "
1249             "{N:/message%s dropped due to full socket buffers}\n");
1250         delivered = rip6stat.rip6s_ipackets -
1251                     rip6stat.rip6s_badsum -
1252                     rip6stat.rip6s_nosock -
1253                     rip6stat.rip6s_nosockmcast -
1254                     rip6stat.rip6s_fullsock;
1255         if (delivered || sflag <= 1)
1256                 xo_emit("\t{:delivered-packets/%ju} {N:/delivered}\n",
1257                     (uintmax_t)delivered);
1258         p(rip6s_opackets, "\t{:sent-packets/%ju} "
1259             "{N:/datagram%s output}\n");
1260 #undef p
1261         xo_close_container(name);
1262 }
1263
1264 /*
1265  * Pretty print an Internet address (net address + port).
1266  * Take numeric_addr and numeric_port into consideration.
1267  */
1268 #define GETSERVBYPORT6(port, proto, ret)\
1269 {\
1270         if (strcmp((proto), "tcp6") == 0)\
1271                 (ret) = getservbyport((int)(port), "tcp");\
1272         else if (strcmp((proto), "udp6") == 0)\
1273                 (ret) = getservbyport((int)(port), "udp");\
1274         else\
1275                 (ret) = getservbyport((int)(port), (proto));\
1276 };
1277
1278 void
1279 inet6print(const char *container, struct in6_addr *in6, int port,
1280     const char *proto, int numeric)
1281 {
1282         struct servent *sp = 0;
1283         char line[80], *cp;
1284         int width;
1285         size_t alen, plen;
1286
1287         if (container)
1288                 xo_open_container(container);
1289
1290         snprintf(line, sizeof(line), "%.*s.",
1291             Wflag ? 39 : (Aflag && !numeric) ? 12 : 16,
1292             inet6name(in6));
1293         alen = strlen(line);
1294         cp = line + alen;
1295         if (!numeric && port)
1296                 GETSERVBYPORT6(port, proto, sp);
1297         if (sp || port == 0)
1298                 snprintf(cp, sizeof(line) - alen,
1299                     "%.15s", sp ? sp->s_name : "*");
1300         else
1301                 snprintf(cp, sizeof(line) - alen,
1302                     "%d", ntohs((u_short)port));
1303         width = Wflag ? 45 : Aflag ? 18 : 22;
1304
1305         xo_emit("{d:target/%-*.*s} ", width, width, line);
1306
1307         plen = strlen(cp);
1308         alen--;
1309         xo_emit("{e:address/%*.*s}{e:port/%*.*s}", alen, alen, line, plen,
1310             plen, cp);
1311
1312         if (container)
1313                 xo_close_container(container);
1314 }
1315
1316 /*
1317  * Construct an Internet address representation.
1318  * If the numeric_addr has been supplied, give
1319  * numeric value, otherwise try for symbolic name.
1320  */
1321
1322 char *
1323 inet6name(struct in6_addr *ia6)
1324 {
1325         struct sockaddr_in6 sin6;
1326         char hbuf[NI_MAXHOST], *cp;
1327         static char line[NI_MAXHOST];
1328         static char domain[MAXHOSTNAMELEN];
1329         static int first = 1;
1330         int flags, error;
1331
1332         if (IN6_IS_ADDR_UNSPECIFIED(ia6)) {
1333                 strcpy(line, "*");
1334                 return (line);
1335         }
1336         if (first && !numeric_addr) {
1337                 first = 0;
1338                 if (gethostname(domain, sizeof(domain)) == 0 &&
1339                     (cp = strchr(domain, '.')))
1340                         strlcpy(domain, cp + 1, sizeof(domain));
1341                 else
1342                         domain[0] = 0;
1343         }
1344         memset(&sin6, 0, sizeof(sin6));
1345         memcpy(&sin6.sin6_addr, ia6, sizeof(*ia6));
1346         sin6.sin6_family = AF_INET6;
1347         /* XXX: ia6.s6_addr[2] can contain scopeid. */
1348         in6_fillscopeid(&sin6);
1349         flags = (numeric_addr) ? NI_NUMERICHOST : 0;
1350         error = getnameinfo((struct sockaddr *)&sin6, sizeof(sin6), hbuf,
1351             sizeof(hbuf), NULL, 0, flags);
1352         if (error == 0) {
1353                 if ((flags & NI_NUMERICHOST) == 0 &&
1354                     (cp = strchr(hbuf, '.')) &&
1355                     !strcmp(cp + 1, domain))
1356                         *cp = 0;
1357                 strlcpy(line, hbuf, sizeof(line));
1358         } else {
1359                 /* XXX: this should not happen. */
1360                 snprintf(line, sizeof(line), "%s",
1361                         inet_ntop(AF_INET6, (void *)&sin6.sin6_addr, ntop_buf,
1362                                 sizeof(ntop_buf)));
1363         }
1364         return (line);
1365 }
1366 #endif /*INET6*/