inet6.c revision 246988
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 31#if 0 32#ifndef lint 33static char sccsid[] = "@(#)inet6.c 8.4 (Berkeley) 4/20/94"; 34#endif /* not lint */ 35#endif 36 37#include <sys/cdefs.h> 38__FBSDID("$FreeBSD: head/usr.bin/netstat/inet6.c 246988 2013-02-19 13:17:16Z charnier $"); 39 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#include <sys/sysctl.h> 48 49#include <net/route.h> 50#include <net/if.h> 51#include <net/if_var.h> 52#include <netinet/in.h> 53#include <netinet/ip6.h> 54#include <netinet/icmp6.h> 55#include <netinet/in_systm.h> 56#include <netinet6/in6_pcb.h> 57#include <netinet6/in6_var.h> 58#include <netinet6/ip6_var.h> 59#include <netinet6/pim6_var.h> 60#include <netinet6/raw_ip6.h> 61 62#include <arpa/inet.h> 63#include <netdb.h> 64 65#include <err.h> 66#include <stdint.h> 67#include <stdio.h> 68#include <errno.h> 69#include <string.h> 70#include <unistd.h> 71#include "netstat.h" 72 73struct socket sockb; 74 75char *inet6name(struct in6_addr *); 76 77static char ntop_buf[INET6_ADDRSTRLEN]; 78 79static const char *ip6nh[] = { 80 "hop by hop", 81 "ICMP", 82 "IGMP", 83 "#3", 84 "IP", 85 "#5", 86 "TCP", 87 "#7", 88 "#8", 89 "#9", 90 "#10", 91 "#11", 92 "#12", 93 "#13", 94 "#14", 95 "#15", 96 "#16", 97 "UDP", 98 "#18", 99 "#19", 100 "#20", 101 "#21", 102 "IDP", 103 "#23", 104 "#24", 105 "#25", 106 "#26", 107 "#27", 108 "#28", 109 "TP", 110 "#30", 111 "#31", 112 "#32", 113 "#33", 114 "#34", 115 "#35", 116 "#36", 117 "#37", 118 "#38", 119 "#39", 120 "#40", 121 "IP6", 122 "#42", 123 "routing", 124 "fragment", 125 "#45", 126 "#46", 127 "#47", 128 "#48", 129 "#49", 130 "ESP", 131 "AH", 132 "#52", 133 "#53", 134 "#54", 135 "#55", 136 "#56", 137 "#57", 138 "ICMP6", 139 "no next header", 140 "destination option", 141 "#61", 142 "mobility", 143 "#63", 144 "#64", 145 "#65", 146 "#66", 147 "#67", 148 "#68", 149 "#69", 150 "#70", 151 "#71", 152 "#72", 153 "#73", 154 "#74", 155 "#75", 156 "#76", 157 "#77", 158 "#78", 159 "#79", 160 "ISOIP", 161 "#81", 162 "#82", 163 "#83", 164 "#84", 165 "#85", 166 "#86", 167 "#87", 168 "#88", 169 "OSPF", 170 "#80", 171 "#91", 172 "#92", 173 "#93", 174 "#94", 175 "#95", 176 "#96", 177 "Ethernet", 178 "#98", 179 "#99", 180 "#100", 181 "#101", 182 "#102", 183 "PIM", 184 "#104", 185 "#105", 186 "#106", 187 "#107", 188 "#108", 189 "#109", 190 "#110", 191 "#111", 192 "#112", 193 "#113", 194 "#114", 195 "#115", 196 "#116", 197 "#117", 198 "#118", 199 "#119", 200 "#120", 201 "#121", 202 "#122", 203 "#123", 204 "#124", 205 "#125", 206 "#126", 207 "#127", 208 "#128", 209 "#129", 210 "#130", 211 "#131", 212 "#132", 213 "#133", 214 "#134", 215 "#135", 216 "#136", 217 "#137", 218 "#138", 219 "#139", 220 "#140", 221 "#141", 222 "#142", 223 "#143", 224 "#144", 225 "#145", 226 "#146", 227 "#147", 228 "#148", 229 "#149", 230 "#150", 231 "#151", 232 "#152", 233 "#153", 234 "#154", 235 "#155", 236 "#156", 237 "#157", 238 "#158", 239 "#159", 240 "#160", 241 "#161", 242 "#162", 243 "#163", 244 "#164", 245 "#165", 246 "#166", 247 "#167", 248 "#168", 249 "#169", 250 "#170", 251 "#171", 252 "#172", 253 "#173", 254 "#174", 255 "#175", 256 "#176", 257 "#177", 258 "#178", 259 "#179", 260 "#180", 261 "#181", 262 "#182", 263 "#183", 264 "#184", 265 "#185", 266 "#186", 267 "#187", 268 "#188", 269 "#189", 270 "#180", 271 "#191", 272 "#192", 273 "#193", 274 "#194", 275 "#195", 276 "#196", 277 "#197", 278 "#198", 279 "#199", 280 "#200", 281 "#201", 282 "#202", 283 "#203", 284 "#204", 285 "#205", 286 "#206", 287 "#207", 288 "#208", 289 "#209", 290 "#210", 291 "#211", 292 "#212", 293 "#213", 294 "#214", 295 "#215", 296 "#216", 297 "#217", 298 "#218", 299 "#219", 300 "#220", 301 "#221", 302 "#222", 303 "#223", 304 "#224", 305 "#225", 306 "#226", 307 "#227", 308 "#228", 309 "#229", 310 "#230", 311 "#231", 312 "#232", 313 "#233", 314 "#234", 315 "#235", 316 "#236", 317 "#237", 318 "#238", 319 "#239", 320 "#240", 321 "#241", 322 "#242", 323 "#243", 324 "#244", 325 "#245", 326 "#246", 327 "#247", 328 "#248", 329 "#249", 330 "#250", 331 "#251", 332 "#252", 333 "#253", 334 "#254", 335 "#255", 336}; 337 338static const char *srcrule_str[] = { 339 "first candidate", 340 "same address", 341 "appropriate scope", 342 "deprecated address", 343 "home address", 344 "outgoing interface", 345 "matching label", 346 "public/temporary address", 347 "alive interface", 348 "preferred interface", 349 "rule #10", 350 "rule #11", 351 "rule #12", 352 "rule #13", 353 "longest match", 354 "rule #15", 355}; 356 357/* 358 * Dump IP6 statistics structure. 359 */ 360void 361ip6_stats(u_long off, const char *name, int af1 __unused, int proto __unused) 362{ 363 struct ip6stat ip6stat, zerostat; 364 int first, i; 365 size_t len; 366 367 len = sizeof ip6stat; 368 if (live) { 369 memset(&ip6stat, 0, len); 370 if (zflag) 371 memset(&zerostat, 0, len); 372 if (sysctlbyname("net.inet6.ip6.stats", &ip6stat, &len, 373 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 374 if (errno != ENOENT) 375 warn("sysctl: net.inet6.ip6.stats"); 376 return; 377 } 378 } else 379 kread(off, &ip6stat, len); 380 381 printf("%s:\n", name); 382 383#define p(f, m) if (ip6stat.f || sflag <= 1) \ 384 printf(m, (uintmax_t)ip6stat.f, plural(ip6stat.f)) 385#define p1a(f, m) if (ip6stat.f || sflag <= 1) \ 386 printf(m, (uintmax_t)ip6stat.f) 387 388 p(ip6s_total, "\t%ju total packet%s received\n"); 389 p1a(ip6s_toosmall, "\t%ju with size smaller than minimum\n"); 390 p1a(ip6s_tooshort, "\t%ju with data size < data length\n"); 391 p1a(ip6s_badoptions, "\t%ju with bad options\n"); 392 p1a(ip6s_badvers, "\t%ju with incorrect version number\n"); 393 p(ip6s_fragments, "\t%ju fragment%s received\n"); 394 p(ip6s_fragdropped, "\t%ju fragment%s dropped (dup or out of space)\n"); 395 p(ip6s_fragtimeout, "\t%ju fragment%s dropped after timeout\n"); 396 p(ip6s_fragoverflow, "\t%ju fragment%s that exceeded limit\n"); 397 p(ip6s_reassembled, "\t%ju packet%s reassembled ok\n"); 398 p(ip6s_delivered, "\t%ju packet%s for this host\n"); 399 p(ip6s_forward, "\t%ju packet%s forwarded\n"); 400 p(ip6s_cantforward, "\t%ju packet%s not forwardable\n"); 401 p(ip6s_redirectsent, "\t%ju redirect%s sent\n"); 402 p(ip6s_localout, "\t%ju packet%s sent from this host\n"); 403 p(ip6s_rawout, "\t%ju packet%s sent with fabricated ip header\n"); 404 p(ip6s_odropped, "\t%ju output packet%s dropped due to no bufs, etc.\n"); 405 p(ip6s_noroute, "\t%ju output packet%s discarded due to no route\n"); 406 p(ip6s_fragmented, "\t%ju output datagram%s fragmented\n"); 407 p(ip6s_ofragments, "\t%ju fragment%s created\n"); 408 p(ip6s_cantfrag, "\t%ju datagram%s that can't be fragmented\n"); 409 p(ip6s_badscope, "\t%ju packet%s that violated scope rules\n"); 410 p(ip6s_notmember, "\t%ju multicast packet%s which we don't join\n"); 411 for (first = 1, i = 0; i < 256; i++) 412 if (ip6stat.ip6s_nxthist[i] != 0) { 413 if (first) { 414 printf("\tInput histogram:\n"); 415 first = 0; 416 } 417 printf("\t\t%s: %ju\n", ip6nh[i], 418 (uintmax_t)ip6stat.ip6s_nxthist[i]); 419 } 420 printf("\tMbuf statistics:\n"); 421 printf("\t\t%ju one mbuf\n", (uintmax_t)ip6stat.ip6s_m1); 422 for (first = 1, i = 0; i < 32; i++) { 423 char ifbuf[IFNAMSIZ]; 424 if (ip6stat.ip6s_m2m[i] != 0) { 425 if (first) { 426 printf("\t\ttwo or more mbuf:\n"); 427 first = 0; 428 } 429 printf("\t\t\t%s= %ju\n", 430 if_indextoname(i, ifbuf), 431 (uintmax_t)ip6stat.ip6s_m2m[i]); 432 } 433 } 434 printf("\t\t%ju one ext mbuf\n", 435 (uintmax_t)ip6stat.ip6s_mext1); 436 printf("\t\t%ju two or more ext mbuf\n", 437 (uintmax_t)ip6stat.ip6s_mext2m); 438 p(ip6s_exthdrtoolong, 439 "\t%ju packet%s whose headers are not contiguous\n"); 440 p(ip6s_nogif, "\t%ju tunneling packet%s that can't find gif\n"); 441 p(ip6s_toomanyhdr, 442 "\t%ju packet%s discarded because of too many headers\n"); 443 444 /* for debugging source address selection */ 445#define PRINT_SCOPESTAT(s,i) do {\ 446 switch(i) { /* XXX hardcoding in each case */\ 447 case 1:\ 448 p(s, "\t\t%ju node-local%s\n");\ 449 break;\ 450 case 2:\ 451 p(s,"\t\t%ju link-local%s\n");\ 452 break;\ 453 case 5:\ 454 p(s,"\t\t%ju site-local%s\n");\ 455 break;\ 456 case 14:\ 457 p(s,"\t\t%ju global%s\n");\ 458 break;\ 459 default:\ 460 printf("\t\t%ju addresses scope=%x\n",\ 461 (uintmax_t)ip6stat.s, i);\ 462 }\ 463 } while (0); 464 465 p(ip6s_sources_none, 466 "\t%ju failure%s of source address selection\n"); 467 for (first = 1, i = 0; i < 16; i++) { 468 if (ip6stat.ip6s_sources_sameif[i]) { 469 if (first) { 470 printf("\tsource addresses on an outgoing I/F\n"); 471 first = 0; 472 } 473 PRINT_SCOPESTAT(ip6s_sources_sameif[i], i); 474 } 475 } 476 for (first = 1, i = 0; i < 16; i++) { 477 if (ip6stat.ip6s_sources_otherif[i]) { 478 if (first) { 479 printf("\tsource addresses on a non-outgoing I/F\n"); 480 first = 0; 481 } 482 PRINT_SCOPESTAT(ip6s_sources_otherif[i], i); 483 } 484 } 485 for (first = 1, i = 0; i < 16; i++) { 486 if (ip6stat.ip6s_sources_samescope[i]) { 487 if (first) { 488 printf("\tsource addresses of same scope\n"); 489 first = 0; 490 } 491 PRINT_SCOPESTAT(ip6s_sources_samescope[i], i); 492 } 493 } 494 for (first = 1, i = 0; i < 16; i++) { 495 if (ip6stat.ip6s_sources_otherscope[i]) { 496 if (first) { 497 printf("\tsource addresses of a different scope\n"); 498 first = 0; 499 } 500 PRINT_SCOPESTAT(ip6s_sources_otherscope[i], i); 501 } 502 } 503 for (first = 1, i = 0; i < 16; i++) { 504 if (ip6stat.ip6s_sources_deprecated[i]) { 505 if (first) { 506 printf("\tdeprecated source addresses\n"); 507 first = 0; 508 } 509 PRINT_SCOPESTAT(ip6s_sources_deprecated[i], i); 510 } 511 } 512 513 printf("\tSource addresses selection rule applied:\n"); 514 for (i = 0; i < 16; i++) { 515 if (ip6stat.ip6s_sources_rule[i]) 516 printf("\t\t%ju %s\n", 517 (uintmax_t)ip6stat.ip6s_sources_rule[i], 518 srcrule_str[i]); 519 } 520#undef p 521#undef p1a 522} 523 524/* 525 * Dump IPv6 per-interface statistics based on RFC 2465. 526 */ 527void 528ip6_ifstats(char *ifname) 529{ 530 struct in6_ifreq ifr; 531 int s; 532#define p(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \ 533 printf(m, (uintmax_t)ifr.ifr_ifru.ifru_stat.f, plural(ifr.ifr_ifru.ifru_stat.f)) 534#define p_5(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \ 535 printf(m, (uintmax_t)ip6stat.f) 536 537 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 538 perror("Warning: socket(AF_INET6)"); 539 return; 540 } 541 542 strcpy(ifr.ifr_name, ifname); 543 printf("ip6 on %s:\n", ifr.ifr_name); 544 545 if (ioctl(s, SIOCGIFSTAT_IN6, (char *)&ifr) < 0) { 546 perror("Warning: ioctl(SIOCGIFSTAT_IN6)"); 547 goto end; 548 } 549 550 p(ifs6_in_receive, "\t%ju total input datagram%s\n"); 551 p(ifs6_in_hdrerr, "\t%ju datagram%s with invalid header received\n"); 552 p(ifs6_in_toobig, "\t%ju datagram%s exceeded MTU received\n"); 553 p(ifs6_in_noroute, "\t%ju datagram%s with no route received\n"); 554 p(ifs6_in_addrerr, "\t%ju datagram%s with invalid dst received\n"); 555 p(ifs6_in_protounknown, "\t%ju datagram%s with unknown proto received\n"); 556 p(ifs6_in_truncated, "\t%ju truncated datagram%s received\n"); 557 p(ifs6_in_discard, "\t%ju input datagram%s discarded\n"); 558 p(ifs6_in_deliver, 559 "\t%ju datagram%s delivered to an upper layer protocol\n"); 560 p(ifs6_out_forward, "\t%ju datagram%s forwarded to this interface\n"); 561 p(ifs6_out_request, 562 "\t%ju datagram%s sent from an upper layer protocol\n"); 563 p(ifs6_out_discard, "\t%ju total discarded output datagram%s\n"); 564 p(ifs6_out_fragok, "\t%ju output datagram%s fragmented\n"); 565 p(ifs6_out_fragfail, "\t%ju output datagram%s failed on fragment\n"); 566 p(ifs6_out_fragcreat, "\t%ju output datagram%s succeeded on fragment\n"); 567 p(ifs6_reass_reqd, "\t%ju incoming datagram%s fragmented\n"); 568 p(ifs6_reass_ok, "\t%ju datagram%s reassembled\n"); 569 p(ifs6_reass_fail, "\t%ju datagram%s failed on reassembly\n"); 570 p(ifs6_in_mcast, "\t%ju multicast datagram%s received\n"); 571 p(ifs6_out_mcast, "\t%ju multicast datagram%s sent\n"); 572 573 end: 574 close(s); 575 576#undef p 577#undef p_5 578} 579 580static const char *icmp6names[] = { 581 "#0", 582 "unreach", 583 "packet too big", 584 "time exceed", 585 "parameter problem", 586 "#5", 587 "#6", 588 "#7", 589 "#8", 590 "#9", 591 "#10", 592 "#11", 593 "#12", 594 "#13", 595 "#14", 596 "#15", 597 "#16", 598 "#17", 599 "#18", 600 "#19", 601 "#20", 602 "#21", 603 "#22", 604 "#23", 605 "#24", 606 "#25", 607 "#26", 608 "#27", 609 "#28", 610 "#29", 611 "#30", 612 "#31", 613 "#32", 614 "#33", 615 "#34", 616 "#35", 617 "#36", 618 "#37", 619 "#38", 620 "#39", 621 "#40", 622 "#41", 623 "#42", 624 "#43", 625 "#44", 626 "#45", 627 "#46", 628 "#47", 629 "#48", 630 "#49", 631 "#50", 632 "#51", 633 "#52", 634 "#53", 635 "#54", 636 "#55", 637 "#56", 638 "#57", 639 "#58", 640 "#59", 641 "#60", 642 "#61", 643 "#62", 644 "#63", 645 "#64", 646 "#65", 647 "#66", 648 "#67", 649 "#68", 650 "#69", 651 "#70", 652 "#71", 653 "#72", 654 "#73", 655 "#74", 656 "#75", 657 "#76", 658 "#77", 659 "#78", 660 "#79", 661 "#80", 662 "#81", 663 "#82", 664 "#83", 665 "#84", 666 "#85", 667 "#86", 668 "#87", 669 "#88", 670 "#89", 671 "#80", 672 "#91", 673 "#92", 674 "#93", 675 "#94", 676 "#95", 677 "#96", 678 "#97", 679 "#98", 680 "#99", 681 "#100", 682 "#101", 683 "#102", 684 "#103", 685 "#104", 686 "#105", 687 "#106", 688 "#107", 689 "#108", 690 "#109", 691 "#110", 692 "#111", 693 "#112", 694 "#113", 695 "#114", 696 "#115", 697 "#116", 698 "#117", 699 "#118", 700 "#119", 701 "#120", 702 "#121", 703 "#122", 704 "#123", 705 "#124", 706 "#125", 707 "#126", 708 "#127", 709 "echo", 710 "echo reply", 711 "multicast listener query", 712 "MLDv1 listener report", 713 "MLDv1 listener done", 714 "router solicitation", 715 "router advertisement", 716 "neighbor solicitation", 717 "neighbor advertisement", 718 "redirect", 719 "router renumbering", 720 "node information request", 721 "node information reply", 722 "inverse neighbor solicitation", 723 "inverse neighbor advertisement", 724 "MLDv2 listener report", 725 "#144", 726 "#145", 727 "#146", 728 "#147", 729 "#148", 730 "#149", 731 "#150", 732 "#151", 733 "#152", 734 "#153", 735 "#154", 736 "#155", 737 "#156", 738 "#157", 739 "#158", 740 "#159", 741 "#160", 742 "#161", 743 "#162", 744 "#163", 745 "#164", 746 "#165", 747 "#166", 748 "#167", 749 "#168", 750 "#169", 751 "#170", 752 "#171", 753 "#172", 754 "#173", 755 "#174", 756 "#175", 757 "#176", 758 "#177", 759 "#178", 760 "#179", 761 "#180", 762 "#181", 763 "#182", 764 "#183", 765 "#184", 766 "#185", 767 "#186", 768 "#187", 769 "#188", 770 "#189", 771 "#180", 772 "#191", 773 "#192", 774 "#193", 775 "#194", 776 "#195", 777 "#196", 778 "#197", 779 "#198", 780 "#199", 781 "#200", 782 "#201", 783 "#202", 784 "#203", 785 "#204", 786 "#205", 787 "#206", 788 "#207", 789 "#208", 790 "#209", 791 "#210", 792 "#211", 793 "#212", 794 "#213", 795 "#214", 796 "#215", 797 "#216", 798 "#217", 799 "#218", 800 "#219", 801 "#220", 802 "#221", 803 "#222", 804 "#223", 805 "#224", 806 "#225", 807 "#226", 808 "#227", 809 "#228", 810 "#229", 811 "#230", 812 "#231", 813 "#232", 814 "#233", 815 "#234", 816 "#235", 817 "#236", 818 "#237", 819 "#238", 820 "#239", 821 "#240", 822 "#241", 823 "#242", 824 "#243", 825 "#244", 826 "#245", 827 "#246", 828 "#247", 829 "#248", 830 "#249", 831 "#250", 832 "#251", 833 "#252", 834 "#253", 835 "#254", 836 "#255", 837}; 838 839/* 840 * Dump ICMP6 statistics. 841 */ 842void 843icmp6_stats(u_long off, const char *name, int af1 __unused, int proto __unused) 844{ 845 struct icmp6stat icmp6stat, zerostat; 846 int i, first; 847 size_t len; 848 849 len = sizeof icmp6stat; 850 if (live) { 851 memset(&icmp6stat, 0, len); 852 if (zflag) 853 memset(&zerostat, 0, len); 854 if (sysctlbyname("net.inet6.icmp6.stats", &icmp6stat, &len, 855 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 856 if (errno != ENOENT) 857 warn("sysctl: net.inet6.icmp6.stats"); 858 return; 859 } 860 } else 861 kread(off, &icmp6stat, len); 862 863 printf("%s:\n", name); 864 865#define p(f, m) if (icmp6stat.f || sflag <= 1) \ 866 printf(m, (uintmax_t)icmp6stat.f, plural(icmp6stat.f)) 867#define p_5(f, m) if (icmp6stat.f || sflag <= 1) \ 868 printf(m, (uintmax_t)icmp6stat.f) 869 870 p(icp6s_error, "\t%ju call%s to icmp6_error\n"); 871 p(icp6s_canterror, 872 "\t%ju error%s not generated in response to an icmp6 message\n"); 873 p(icp6s_toofreq, 874 "\t%ju error%s not generated because of rate limitation\n"); 875#define NELEM (int)(sizeof(icmp6stat.icp6s_outhist)/sizeof(icmp6stat.icp6s_outhist[0])) 876 for (first = 1, i = 0; i < NELEM; i++) 877 if (icmp6stat.icp6s_outhist[i] != 0) { 878 if (first) { 879 printf("\tOutput histogram:\n"); 880 first = 0; 881 } 882 printf("\t\t%s: %ju\n", icmp6names[i], 883 (uintmax_t)icmp6stat.icp6s_outhist[i]); 884 } 885#undef NELEM 886 p(icp6s_badcode, "\t%ju message%s with bad code fields\n"); 887 p(icp6s_tooshort, "\t%ju message%s < minimum length\n"); 888 p(icp6s_checksum, "\t%ju bad checksum%s\n"); 889 p(icp6s_badlen, "\t%ju message%s with bad length\n"); 890#define NELEM (int)(sizeof(icmp6stat.icp6s_inhist)/sizeof(icmp6stat.icp6s_inhist[0])) 891 for (first = 1, i = 0; i < NELEM; i++) 892 if (icmp6stat.icp6s_inhist[i] != 0) { 893 if (first) { 894 printf("\tInput histogram:\n"); 895 first = 0; 896 } 897 printf("\t\t%s: %ju\n", icmp6names[i], 898 (uintmax_t)icmp6stat.icp6s_inhist[i]); 899 } 900#undef NELEM 901 printf("\tHistogram of error messages to be generated:\n"); 902 p_5(icp6s_odst_unreach_noroute, "\t\t%ju no route\n"); 903 p_5(icp6s_odst_unreach_admin, "\t\t%ju administratively prohibited\n"); 904 p_5(icp6s_odst_unreach_beyondscope, "\t\t%ju beyond scope\n"); 905 p_5(icp6s_odst_unreach_addr, "\t\t%ju address unreachable\n"); 906 p_5(icp6s_odst_unreach_noport, "\t\t%ju port unreachable\n"); 907 p_5(icp6s_opacket_too_big, "\t\t%ju packet too big\n"); 908 p_5(icp6s_otime_exceed_transit, "\t\t%ju time exceed transit\n"); 909 p_5(icp6s_otime_exceed_reassembly, "\t\t%ju time exceed reassembly\n"); 910 p_5(icp6s_oparamprob_header, "\t\t%ju erroneous header field\n"); 911 p_5(icp6s_oparamprob_nextheader, "\t\t%ju unrecognized next header\n"); 912 p_5(icp6s_oparamprob_option, "\t\t%ju unrecognized option\n"); 913 p_5(icp6s_oredirect, "\t\t%ju redirect\n"); 914 p_5(icp6s_ounknown, "\t\t%ju unknown\n"); 915 916 p(icp6s_reflect, "\t%ju message response%s generated\n"); 917 p(icp6s_nd_toomanyopt, "\t%ju message%s with too many ND options\n"); 918 p(icp6s_nd_badopt, "\t%ju message%s with bad ND options\n"); 919 p(icp6s_badns, "\t%ju bad neighbor solicitation message%s\n"); 920 p(icp6s_badna, "\t%ju bad neighbor advertisement message%s\n"); 921 p(icp6s_badrs, "\t%ju bad router solicitation message%s\n"); 922 p(icp6s_badra, "\t%ju bad router advertisement message%s\n"); 923 p(icp6s_badredirect, "\t%ju bad redirect message%s\n"); 924 p(icp6s_pmtuchg, "\t%ju path MTU change%s\n"); 925#undef p 926#undef p_5 927} 928 929/* 930 * Dump ICMPv6 per-interface statistics based on RFC 2466. 931 */ 932void 933icmp6_ifstats(char *ifname) 934{ 935 struct in6_ifreq ifr; 936 int s; 937#define p(f, m) if (ifr.ifr_ifru.ifru_icmp6stat.f || sflag <= 1) \ 938 printf(m, (uintmax_t)ifr.ifr_ifru.ifru_icmp6stat.f, plural(ifr.ifr_ifru.ifru_icmp6stat.f)) 939#define p2(f, m) if (ifr.ifr_ifru.ifru_icmp6stat.f || sflag <= 1) \ 940 printf(m, (uintmax_t)ifr.ifr_ifru.ifru_icmp6stat.f, pluralies(ifr.ifr_ifru.ifru_icmp6stat.f)) 941 942 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 943 perror("Warning: socket(AF_INET6)"); 944 return; 945 } 946 947 strcpy(ifr.ifr_name, ifname); 948 printf("icmp6 on %s:\n", ifr.ifr_name); 949 950 if (ioctl(s, SIOCGIFSTAT_ICMP6, (char *)&ifr) < 0) { 951 perror("Warning: ioctl(SIOCGIFSTAT_ICMP6)"); 952 goto end; 953 } 954 955 p(ifs6_in_msg, "\t%ju total input message%s\n"); 956 p(ifs6_in_error, "\t%ju total input error message%s\n"); 957 p(ifs6_in_dstunreach, "\t%ju input destination unreachable error%s\n"); 958 p(ifs6_in_adminprohib, "\t%ju input administratively prohibited error%s\n"); 959 p(ifs6_in_timeexceed, "\t%ju input time exceeded error%s\n"); 960 p(ifs6_in_paramprob, "\t%ju input parameter problem error%s\n"); 961 p(ifs6_in_pkttoobig, "\t%ju input packet too big error%s\n"); 962 p(ifs6_in_echo, "\t%ju input echo request%s\n"); 963 p2(ifs6_in_echoreply, "\t%ju input echo repl%s\n"); 964 p(ifs6_in_routersolicit, "\t%ju input router solicitation%s\n"); 965 p(ifs6_in_routeradvert, "\t%ju input router advertisement%s\n"); 966 p(ifs6_in_neighborsolicit, "\t%ju input neighbor solicitation%s\n"); 967 p(ifs6_in_neighboradvert, "\t%ju input neighbor advertisement%s\n"); 968 p(ifs6_in_redirect, "\t%ju input redirect%s\n"); 969 p2(ifs6_in_mldquery, "\t%ju input MLD quer%s\n"); 970 p(ifs6_in_mldreport, "\t%ju input MLD report%s\n"); 971 p(ifs6_in_mlddone, "\t%ju input MLD done%s\n"); 972 973 p(ifs6_out_msg, "\t%ju total output message%s\n"); 974 p(ifs6_out_error, "\t%ju total output error message%s\n"); 975 p(ifs6_out_dstunreach, "\t%ju output destination unreachable error%s\n"); 976 p(ifs6_out_adminprohib, "\t%ju output administratively prohibited error%s\n"); 977 p(ifs6_out_timeexceed, "\t%ju output time exceeded error%s\n"); 978 p(ifs6_out_paramprob, "\t%ju output parameter problem error%s\n"); 979 p(ifs6_out_pkttoobig, "\t%ju output packet too big error%s\n"); 980 p(ifs6_out_echo, "\t%ju output echo request%s\n"); 981 p2(ifs6_out_echoreply, "\t%ju output echo repl%s\n"); 982 p(ifs6_out_routersolicit, "\t%ju output router solicitation%s\n"); 983 p(ifs6_out_routeradvert, "\t%ju output router advertisement%s\n"); 984 p(ifs6_out_neighborsolicit, "\t%ju output neighbor solicitation%s\n"); 985 p(ifs6_out_neighboradvert, "\t%ju output neighbor advertisement%s\n"); 986 p(ifs6_out_redirect, "\t%ju output redirect%s\n"); 987 p2(ifs6_out_mldquery, "\t%ju output MLD quer%s\n"); 988 p(ifs6_out_mldreport, "\t%ju output MLD report%s\n"); 989 p(ifs6_out_mlddone, "\t%ju output MLD done%s\n"); 990 991 end: 992 close(s); 993#undef p 994} 995 996/* 997 * Dump PIM statistics structure. 998 */ 999void 1000pim6_stats(u_long off, const char *name, int af1 __unused, int proto __unused) 1001{ 1002 struct pim6stat pim6stat, zerostat; 1003 size_t len = sizeof pim6stat; 1004 1005 if (live) { 1006 if (zflag) 1007 memset(&zerostat, 0, len); 1008 if (sysctlbyname("net.inet6.pim.stats", &pim6stat, &len, 1009 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 1010 if (errno != ENOENT) 1011 warn("sysctl: net.inet6.pim.stats"); 1012 return; 1013 } 1014 } else { 1015 if (off == 0) 1016 return; 1017 kread(off, &pim6stat, len); 1018 } 1019 1020 printf("%s:\n", name); 1021 1022#define p(f, m) if (pim6stat.f || sflag <= 1) \ 1023 printf(m, (uintmax_t)pim6stat.f, plural(pim6stat.f)) 1024 p(pim6s_rcv_total, "\t%ju message%s received\n"); 1025 p(pim6s_rcv_tooshort, "\t%ju message%s received with too few bytes\n"); 1026 p(pim6s_rcv_badsum, "\t%ju message%s received with bad checksum\n"); 1027 p(pim6s_rcv_badversion, "\t%ju message%s received with bad version\n"); 1028 p(pim6s_rcv_registers, "\t%ju register%s received\n"); 1029 p(pim6s_rcv_badregisters, "\t%ju bad register%s received\n"); 1030 p(pim6s_snd_registers, "\t%ju register%s sent\n"); 1031#undef p 1032} 1033 1034/* 1035 * Dump raw ip6 statistics structure. 1036 */ 1037void 1038rip6_stats(u_long off, const char *name, int af1 __unused, int proto __unused) 1039{ 1040 struct rip6stat rip6stat, zerostat; 1041 u_quad_t delivered; 1042 size_t len; 1043 1044 len = sizeof(rip6stat); 1045 if (live) { 1046 if (zflag) 1047 memset(&zerostat, 0, len); 1048 if (sysctlbyname("net.inet6.ip6.rip6stats", &rip6stat, &len, 1049 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 1050 if (errno != ENOENT) 1051 warn("sysctl: net.inet6.ip6.rip6stats"); 1052 return; 1053 } 1054 } else 1055 kread(off, &rip6stat, len); 1056 1057 printf("%s:\n", name); 1058 1059#define p(f, m) if (rip6stat.f || sflag <= 1) \ 1060 printf(m, (uintmax_t)rip6stat.f, plural(rip6stat.f)) 1061 p(rip6s_ipackets, "\t%ju message%s received\n"); 1062 p(rip6s_isum, "\t%ju checksum calculation%s on inbound\n"); 1063 p(rip6s_badsum, "\t%ju message%s with bad checksum\n"); 1064 p(rip6s_nosock, "\t%ju message%s dropped due to no socket\n"); 1065 p(rip6s_nosockmcast, 1066 "\t%ju multicast message%s dropped due to no socket\n"); 1067 p(rip6s_fullsock, 1068 "\t%ju message%s dropped due to full socket buffers\n"); 1069 delivered = rip6stat.rip6s_ipackets - 1070 rip6stat.rip6s_badsum - 1071 rip6stat.rip6s_nosock - 1072 rip6stat.rip6s_nosockmcast - 1073 rip6stat.rip6s_fullsock; 1074 if (delivered || sflag <= 1) 1075 printf("\t%ju delivered\n", (uintmax_t)delivered); 1076 p(rip6s_opackets, "\t%ju datagram%s output\n"); 1077#undef p 1078} 1079 1080/* 1081 * Pretty print an Internet address (net address + port). 1082 * Take numeric_addr and numeric_port into consideration. 1083 */ 1084#define GETSERVBYPORT6(port, proto, ret)\ 1085{\ 1086 if (strcmp((proto), "tcp6") == 0)\ 1087 (ret) = getservbyport((int)(port), "tcp");\ 1088 else if (strcmp((proto), "udp6") == 0)\ 1089 (ret) = getservbyport((int)(port), "udp");\ 1090 else\ 1091 (ret) = getservbyport((int)(port), (proto));\ 1092}; 1093 1094void 1095inet6print(struct in6_addr *in6, int port, const char *proto, int numeric) 1096{ 1097 struct servent *sp = 0; 1098 char line[80], *cp; 1099 int width; 1100 1101 sprintf(line, "%.*s.", Wflag ? 39 : 1102 (Aflag && !numeric) ? 12 : 16, inet6name(in6)); 1103 cp = strchr(line, '\0'); 1104 if (!numeric && port) 1105 GETSERVBYPORT6(port, proto, sp); 1106 if (sp || port == 0) 1107 sprintf(cp, "%.15s", sp ? sp->s_name : "*"); 1108 else 1109 sprintf(cp, "%d", ntohs((u_short)port)); 1110 width = Wflag ? 45 : Aflag ? 18 : 22; 1111 printf("%-*.*s ", width, width, line); 1112} 1113 1114/* 1115 * Construct an Internet address representation. 1116 * If the numeric_addr has been supplied, give 1117 * numeric value, otherwise try for symbolic name. 1118 */ 1119 1120char * 1121inet6name(struct in6_addr *in6p) 1122{ 1123 char *cp; 1124 static char line[50]; 1125 struct hostent *hp; 1126 static char domain[MAXHOSTNAMELEN]; 1127 static int first = 1; 1128 1129 if (first && !numeric_addr) { 1130 first = 0; 1131 if (gethostname(domain, MAXHOSTNAMELEN) == 0 && 1132 (cp = strchr(domain, '.'))) 1133 (void) strcpy(domain, cp + 1); 1134 else 1135 domain[0] = 0; 1136 } 1137 cp = 0; 1138 if (!numeric_addr && !IN6_IS_ADDR_UNSPECIFIED(in6p)) { 1139 hp = gethostbyaddr((char *)in6p, sizeof(*in6p), AF_INET6); 1140 if (hp) { 1141 if ((cp = strchr(hp->h_name, '.')) && 1142 !strcmp(cp + 1, domain)) 1143 *cp = 0; 1144 cp = hp->h_name; 1145 } 1146 } 1147 if (IN6_IS_ADDR_UNSPECIFIED(in6p)) 1148 strcpy(line, "*"); 1149 else if (cp) 1150 strcpy(line, cp); 1151 else 1152 sprintf(line, "%s", 1153 inet_ntop(AF_INET6, (void *)in6p, ntop_buf, 1154 sizeof(ntop_buf))); 1155 return (line); 1156} 1157#endif /*INET6*/ 1158