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*/ 1367