inet6.c revision 1.82
1 /* $NetBSD: inet6.c,v 1.82 2022/09/21 07:59:19 msaitoh Exp $ */ 2 /* BSDI inet.c,v 2.3 1995/10/24 02:19:29 prb Exp */ 3 4 /* 5 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project. 6 * 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 project 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 PROJECT 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 PROJECT 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 /* 34 * Copyright (c) 1983, 1988, 1993 35 * The Regents of the University of California. All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. Neither the name of the University nor the names of its contributors 46 * may be used to endorse or promote products derived from this software 47 * without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 59 * SUCH DAMAGE. 60 */ 61 62 #include <sys/cdefs.h> 63 #ifndef lint 64 #if 0 65 static char sccsid[] = "@(#)inet.c 8.4 (Berkeley) 4/20/94"; 66 #else 67 __RCSID("$NetBSD: inet6.c,v 1.82 2022/09/21 07:59:19 msaitoh Exp $"); 68 #endif 69 #endif /* not lint */ 70 71 #define _CALLOUT_PRIVATE 72 73 #include <sys/param.h> 74 #include <sys/socket.h> 75 #include <sys/socketvar.h> 76 #include <sys/ioctl.h> 77 #include <sys/mbuf.h> 78 #include <sys/protosw.h> 79 #include <sys/sysctl.h> 80 81 #include <net/route.h> 82 #include <net/if.h> 83 #include <netinet/in.h> 84 #include <netinet/ip6.h> 85 #include <netinet/icmp6.h> 86 #include <netinet/in_systm.h> 87 #ifndef TCP6 88 #include <netinet/ip.h> 89 #include <netinet/ip_var.h> 90 #endif 91 #include <netinet6/ip6_var.h> 92 #include <netinet6/in6_pcb.h> 93 #include <netinet6/in6_var.h> 94 #ifdef TCP6 95 #include <netinet/tcp6.h> 96 #include <netinet/tcp6_seq.h> 97 #define TCP6STATES 98 #include <netinet/tcp6_fsm.h> 99 #define TCP6TIMERS 100 #include <netinet/tcp6_timer.h> 101 #include <netinet/tcp6_var.h> 102 #include <netinet/tcp6_debug.h> 103 #else 104 #define TCP6T_NTIMERS TCPT_NTIMERS 105 #define tcp6timers tcptimers 106 #define tcp6states tcpstates 107 #define TCP6_NSTATES TCP_NSTATES 108 #define tcp6cb tcpcb 109 #include <netinet/tcp.h> 110 #include <netinet/tcp_seq.h> 111 #include <netinet/tcp_fsm.h> 112 extern const char * const tcpstates[]; 113 extern const char * const tcptimers[]; 114 #include <netinet/tcp_timer.h> 115 #include <netinet/tcp_var.h> 116 #include <netinet/tcp_debug.h> 117 #endif /*TCP6*/ 118 #include <netinet6/udp6.h> 119 #include <netinet6/udp6_var.h> 120 #include <netinet6/pim6_var.h> 121 #include <netinet6/raw_ip6.h> 122 #include <netinet/tcp_vtw.h> 123 124 #include <arpa/inet.h> 125 #if 0 126 #include "gethostbyname2.h" 127 #endif 128 #include <netdb.h> 129 130 #include <err.h> 131 #include <errno.h> 132 #include <kvm.h> 133 #include <stdio.h> 134 #include <stdlib.h> 135 #include <string.h> 136 #include <unistd.h> 137 #include <util.h> 138 #include "netstat.h" 139 #include "vtw.h" 140 #include "prog_ops.h" 141 142 #ifdef INET6 143 144 struct in6pcb in6pcb; 145 #ifdef TCP6 146 struct tcp6cb tcp6cb; 147 #else 148 struct tcpcb tcpcb; 149 #endif 150 151 char *inet6name(const struct in6_addr *); 152 void inet6print(const struct in6_addr *, int, const char *); 153 void print_vtw_v6(const vtw_t *); 154 155 /* 156 * Print a summary of connections related to an Internet 157 * protocol. For TCP, also give state of connection. 158 * Listening processes (aflag) are suppressed unless the 159 * -a (all) flag is specified. 160 */ 161 static int width; 162 static int compact; 163 164 /* VTW-related variables. */ 165 static struct timeval now; 166 167 static void 168 ip6protoprhdr(void) 169 { 170 171 printf("Active Internet6 connections"); 172 173 if (aflag) 174 printf(" (including servers)"); 175 putchar('\n'); 176 177 if (Aflag) { 178 printf("%-8.8s ", "PCB"); 179 width = 18; 180 } 181 printf( 182 Vflag ? "%-5.5s %-6.6s %-6.6s %*.*s %*.*s %-13.13s Expires\n" 183 : "%-5.5s %-6.6s %-6.6s %*.*s %*.*s %s\n", 184 "Proto", "Recv-Q", "Send-Q", 185 -width, width, "Local Address", 186 -width, width, "Foreign Address", "(state)"); 187 } 188 189 static void 190 ip6protopr0(intptr_t ppcb, u_long rcv_sb_cc, u_long snd_sb_cc, 191 const struct in6_addr *laddr, uint16_t lport, 192 const struct in6_addr *faddr, uint16_t fport, 193 short t_state, const char *name, const struct timeval *expires) 194 { 195 static const char *shorttcpstates[] = { 196 "CLOSED", "LISTEN", "SYNSEN", "SYSRCV", 197 "ESTABL", "CLWAIT", "FWAIT1", "CLOSNG", 198 "LASTAK", "FWAIT2", "TMWAIT" 199 }; 200 int istcp; 201 202 istcp = strcmp(name, "tcp6") == 0; 203 if (Aflag) 204 printf("%8" PRIxPTR " ", ppcb); 205 206 printf("%-5.5s %6ld %6ld%s", name, rcv_sb_cc, snd_sb_cc, 207 compact ? "" : " "); 208 209 inet6print(laddr, (int)lport, name); 210 inet6print(faddr, (int)fport, name); 211 if (istcp) { 212 #ifdef TCP6 213 if (t_state < 0 || t_state >= TCP6_NSTATES) 214 printf(" %d", t_state); 215 else 216 printf(" %s", tcp6states[t_state]); 217 #else 218 if (t_state < 0 || t_state >= TCP_NSTATES) 219 printf(" %d", t_state); 220 else 221 printf(" %s", compact ? shorttcpstates[t_state] : 222 tcpstates[t_state]); 223 #endif 224 } 225 if (Vflag && expires != NULL) { 226 if (expires->tv_sec == 0 && expires->tv_usec == -1) 227 printf(" reclaimed"); 228 else { 229 struct timeval delta; 230 231 timersub(expires, &now, &delta); 232 printf(" %.3fms", 233 delta.tv_sec * 1000.0 + delta.tv_usec / 1000.0); 234 } 235 } 236 putchar('\n'); 237 } 238 239 static void 240 dbg_printf(const char *fmt, ...) 241 { 242 243 return; 244 } 245 246 void 247 print_vtw_v6(const vtw_t *vtw) 248 { 249 const vtw_v6_t *v6 = (const vtw_v6_t *)vtw; 250 struct timeval delta; 251 char buf[2][128]; 252 static const struct timeval zero = {.tv_sec = 0, .tv_usec = 0}; 253 254 inet_ntop(AF_INET6, &v6->laddr, buf[0], sizeof(buf[0])); 255 inet_ntop(AF_INET6, &v6->faddr, buf[1], sizeof(buf[1])); 256 257 timersub(&vtw->expire, &now, &delta); 258 259 if (vtw->expire.tv_sec == 0 && vtw->expire.tv_usec == -1) { 260 dbg_printf("%15.15s:%d %15.15s:%d reclaimed\n", 261 buf[0], ntohs(v6->lport), 262 buf[1], ntohs(v6->fport)); 263 if (!(Vflag && vflag)) 264 return; 265 } else if (vtw->expire.tv_sec == 0) 266 return; 267 else if (timercmp(&delta, &zero, <) && !(Vflag && vflag)) { 268 dbg_printf("%15.15s:%d %15.15s:%d expired\n", 269 buf[0], ntohs(v6->lport), 270 buf[1], ntohs(v6->fport)); 271 return; 272 } else { 273 dbg_printf("%15.15s:%d %15.15s:%d expires in %.3fms\n", 274 buf[0], ntohs(v6->lport), 275 buf[1], ntohs(v6->fport), 276 delta.tv_sec * 1000.0 + delta.tv_usec / 1000.0); 277 } 278 ip6protopr0(0, 0, 0, 279 &v6->laddr, v6->lport, 280 &v6->faddr, v6->fport, 281 TCPS_TIME_WAIT, "tcp6", &vtw->expire); 282 } 283 284 285 static struct kinfo_pcb * 286 getpcblist_kmem(u_long off, const char *name, size_t *len) 287 { 288 struct socket sockb; 289 struct inpcbtable table; 290 struct inpcb_hdr *next, *prev; 291 int istcp = strcmp(name, "tcp6") == 0; 292 struct kinfo_pcb *pcblist; 293 size_t size = 100, i; 294 struct sockaddr_in6 sin6; 295 struct inpcbqueue *head; 296 297 if (off == 0) { 298 *len = 0; 299 return NULL; 300 } 301 kread(off, (char *)&table, sizeof (table)); 302 head = &table.inpt_queue; 303 next = TAILQ_FIRST(head); 304 prev = TAILQ_END(head); 305 306 pcblist = NULL; 307 if (reallocarr(&pcblist, size, sizeof(*pcblist)) != 0) 308 err(1, "reallocarr"); 309 310 i = 0; 311 while (next != TAILQ_END(head)) { 312 kread((u_long)next, (char *)&in6pcb, sizeof in6pcb); 313 next = TAILQ_NEXT(&in6pcb, in6p_queue); 314 prev = next; 315 316 if (in6pcb.in6p_af != AF_INET6) 317 continue; 318 319 kread((u_long)in6pcb.in6p_socket, (char *)&sockb, 320 sizeof (sockb)); 321 if (istcp) { 322 #ifdef TCP6 323 kread((u_long)in6pcb.in6p_ppcb, 324 (char *)&tcp6cb, sizeof (tcp6cb)); 325 #else 326 kread((u_long)in6pcb.in6p_ppcb, 327 (char *)&tcpcb, sizeof (tcpcb)); 328 #endif 329 } 330 pcblist[i].ki_ppcbaddr = 331 istcp ? (uintptr_t) in6pcb.in6p_ppcb : (uintptr_t) prev; 332 pcblist[i].ki_rcvq = (uint64_t)sockb.so_rcv.sb_cc; 333 pcblist[i].ki_sndq = (uint64_t)sockb.so_snd.sb_cc; 334 sin6.sin6_addr = in6pcb.in6p_laddr; 335 sin6.sin6_port = in6pcb.in6p_lport; 336 memcpy(&pcblist[i].ki_s, &sin6, sizeof(sin6)); 337 sin6.sin6_addr = in6pcb.in6p_faddr; 338 sin6.sin6_port = in6pcb.in6p_fport; 339 memcpy(&pcblist[i].ki_d, &sin6, sizeof(sin6)); 340 pcblist[i].ki_tstate = tcpcb.t_state; 341 if (i++ == size) { 342 size += 100; 343 if (reallocarr(&pcblist, size, sizeof(*pcblist)) != 0) 344 err(1, "reallocarr"); 345 } 346 } 347 *len = i; 348 return pcblist; 349 } 350 351 void 352 ip6protopr(u_long off, const char *name) 353 { 354 struct kinfo_pcb *pcblist; 355 size_t i, len; 356 static int first = 1; 357 358 compact = 0; 359 if (Aflag) { 360 if (!numeric_addr) 361 width = 18; 362 else { 363 width = 21; 364 compact = 1; 365 } 366 } else 367 width = 22; 368 369 if (use_sysctl) 370 pcblist = getpcblist_sysctl(name, &len); 371 else 372 pcblist = getpcblist_kmem(off, name, &len); 373 374 for (i = 0; i < len; i++) { 375 struct sockaddr_in6 src, dst; 376 377 memcpy(&src, &pcblist[i].ki_s, sizeof(src)); 378 memcpy(&dst, &pcblist[i].ki_d, sizeof(dst)); 379 380 if (!aflag && IN6_IS_ADDR_UNSPECIFIED(&dst.sin6_addr)) 381 continue; 382 383 if (first) { 384 ip6protoprhdr(); 385 first = 0; 386 } 387 388 ip6protopr0((intptr_t) pcblist[i].ki_ppcbaddr, 389 pcblist[i].ki_rcvq, pcblist[i].ki_sndq, 390 &src.sin6_addr, src.sin6_port, 391 &dst.sin6_addr, dst.sin6_port, 392 pcblist[i].ki_tstate, name, NULL); 393 } 394 395 free(pcblist); 396 397 if (strcmp(name, "tcp6") == 0) { 398 struct timeval t; 399 timebase(&t); 400 gettimeofday(&now, NULL); 401 timersub(&now, &t, &now); 402 show_vtw_v6(print_vtw_v6); 403 } 404 } 405 406 #ifdef TCP6 407 /* 408 * Dump TCP6 statistics structure. 409 */ 410 void 411 tcp6_stats(u_long off, const char *name) 412 { 413 struct tcp6stat tcp6stat; 414 415 if (use_sysctl) { 416 size_t size = sizeof(tcp6stat); 417 418 if (prog_sysctlbyname("net.inet6.tcp6.stats", &tcp6stat, &size, 419 NULL, 0) == -1 && errno != ENOMEM) 420 return; 421 } else { 422 warnx("%s stats not available via KVM.", name); 423 return; 424 } 425 426 printf ("%s:\n", name); 427 428 #define p(f, m) if (tcp6stat.f || sflag <= 1) \ 429 printf(m, tcp6stat.f, plural(tcp6stat.f)) 430 #define p2(f1, f2, m) if (tcp6stat.f1 || tcp6stat.f2 || sflag <= 1) \ 431 printf(m, tcp6stat.f1, plural(tcp6stat.f1), tcp6stat.f2, \ 432 plural(tcp6stat.f2)) 433 #define p3(f, m) if (tcp6stat.f || sflag <= 1) \ 434 printf(m, tcp6stat.f, plurales(tcp6stat.f)) 435 436 p(tcp6s_sndtotal, "\t%ld packet%s sent\n"); 437 p2(tcp6s_sndpack,tcp6s_sndbyte, 438 "\t\t%ld data packet%s (%ld byte%s)\n"); 439 p2(tcp6s_sndrexmitpack, tcp6s_sndrexmitbyte, 440 "\t\t%ld data packet%s (%ld byte%s) retransmitted\n"); 441 p2(tcp6s_sndacks, tcp6s_delack, 442 "\t\t%ld ack-only packet%s (%ld packet%s delayed)\n"); 443 p(tcp6s_sndurg, "\t\t%ld URG only packet%s\n"); 444 p(tcp6s_sndprobe, "\t\t%ld window probe packet%s\n"); 445 p(tcp6s_sndwinup, "\t\t%ld window update packet%s\n"); 446 p(tcp6s_sndctrl, "\t\t%ld control packet%s\n"); 447 p(tcp6s_rcvtotal, "\t%ld packet%s received\n"); 448 p2(tcp6s_rcvackpack, tcp6s_rcvackbyte, 449 "\t\t%ld ack%s (for %ld byte%s)\n"); 450 p(tcp6s_rcvdupack, "\t\t%ld duplicate ack%s\n"); 451 p(tcp6s_rcvacktoomuch, "\t\t%ld ack%s for unsent data\n"); 452 p2(tcp6s_rcvpack, tcp6s_rcvbyte, 453 "\t\t%ld packet%s (%ld byte%s) received in-sequence\n"); 454 p2(tcp6s_rcvduppack, tcp6s_rcvdupbyte, 455 "\t\t%ld completely duplicate packet%s (%ld byte%s)\n"); 456 p(tcp6s_pawsdrop, "\t\t%ld old duplicate packet%s\n"); 457 p2(tcp6s_rcvpartduppack, tcp6s_rcvpartdupbyte, 458 "\t\t%ld packet%s with some dup. data (%ld byte%s duped)\n"); 459 p2(tcp6s_rcvoopack, tcp6s_rcvoobyte, 460 "\t\t%ld out-of-order packet%s (%ld byte%s)\n"); 461 p2(tcp6s_rcvpackafterwin, tcp6s_rcvbyteafterwin, 462 "\t\t%ld packet%s (%ld byte%s) of data after window\n"); 463 p(tcp6s_rcvwinprobe, "\t\t%ld window probe%s\n"); 464 p(tcp6s_rcvwinupd, "\t\t%ld window update packet%s\n"); 465 p(tcp6s_rcvafterclose, "\t\t%ld packet%s received after close\n"); 466 p(tcp6s_rcvbadsum, "\t\t%ld discarded for bad checksum%s\n"); 467 p(tcp6s_rcvbadoff, 468 "\t\t%ld discarded for bad header offset field%s\n"); 469 p(tcp6s_rcvshort, "\t\t%ld discarded because packet%s too short\n"); 470 p(tcp6s_connattempt, "\t%ld connection request%s\n"); 471 p(tcp6s_accepts, "\t%ld connection accept%s\n"); 472 p(tcp6s_badsyn, "\t%ld bad connection attempt%s\n"); 473 p(tcp6s_connects, 474 "\t%ld connection%s established (including accepts)\n"); 475 p2(tcp6s_closed, tcp6s_drops, 476 "\t%ld connection%s closed (including %ld drop%s)\n"); 477 p(tcp6s_conndrops, "\t%ld embryonic connection%s dropped\n"); 478 p2(tcp6s_rttupdated, tcp6s_segstimed, 479 "\t%ld segment%s updated rtt (of %ld attempt%s)\n"); 480 p(tcp6s_rexmttimeo, "\t%ld retransmit timeout%s\n"); 481 p(tcp6s_timeoutdrop, 482 "\t\t%ld connection%s dropped by rexmit timeout\n"); 483 p(tcp6s_persisttimeo, "\t%ld persist timeout%s\n"); 484 p(tcp6s_persistdrop, "\t%ld connection%s timed out in persist\n"); 485 p(tcp6s_keeptimeo, "\t%ld keepalive timeout%s\n"); 486 p(tcp6s_keepprobe, "\t\t%ld keepalive probe%s sent\n"); 487 p(tcp6s_keepdrops, "\t\t%ld connection%s dropped by keepalive\n"); 488 p(tcp6s_predack, "\t%ld correct ACK header prediction%s\n"); 489 p(tcp6s_preddat, "\t%ld correct data packet header prediction%s\n"); 490 p3(tcp6s_pcbcachemiss, "\t%ld PCB cache miss%s\n"); 491 #undef p 492 #undef p2 493 #undef p3 494 } 495 #endif 496 497 /* 498 * Dump UDP6 statistics structure. 499 */ 500 void 501 udp6_stats(u_long off, const char *name) 502 { 503 uint64_t udp6stat[UDP6_NSTATS]; 504 uint64_t delivered; 505 506 if (use_sysctl) { 507 size_t size = sizeof(udp6stat); 508 509 if (prog_sysctlbyname("net.inet6.udp6.stats", udp6stat, &size, 510 NULL, 0) == -1 && errno != ENOMEM) 511 return; 512 } else { 513 warnx("%s stats not available via KVM.", name); 514 return; 515 } 516 printf("%s:\n", name); 517 #define p(f, m) if (udp6stat[f] || sflag <= 1) \ 518 printf(m, (unsigned long long)udp6stat[f], plural(udp6stat[f])) 519 #define p1(f, m) if (udp6stat[f] || sflag <= 1) \ 520 printf(m, (unsigned long long)udp6stat[f]) 521 p(UDP6_STAT_IPACKETS, "\t%llu datagram%s received\n"); 522 p1(UDP6_STAT_HDROPS, "\t%llu with incomplete header\n"); 523 p1(UDP6_STAT_BADLEN, "\t%llu with bad data length field\n"); 524 p1(UDP6_STAT_BADSUM, "\t%llu with bad checksum\n"); 525 p1(UDP6_STAT_NOSUM, "\t%llu with no checksum\n"); 526 p1(UDP6_STAT_NOPORT, "\t%llu dropped due to no socket\n"); 527 p(UDP6_STAT_NOPORTMCAST, 528 "\t%llu multicast datagram%s dropped due to no socket\n"); 529 p1(UDP6_STAT_FULLSOCK, "\t%llu dropped due to full socket buffers\n"); 530 delivered = udp6stat[UDP6_STAT_IPACKETS] - 531 udp6stat[UDP6_STAT_HDROPS] - 532 udp6stat[UDP6_STAT_BADLEN] - 533 udp6stat[UDP6_STAT_BADSUM] - 534 udp6stat[UDP6_STAT_NOPORT] - 535 udp6stat[UDP6_STAT_NOPORTMCAST] - 536 udp6stat[UDP6_STAT_FULLSOCK]; 537 if (delivered || sflag <= 1) 538 printf("\t%llu delivered\n", (unsigned long long)delivered); 539 p(UDP6_STAT_OPACKETS, "\t%llu datagram%s output\n"); 540 #undef p 541 #undef p1 542 } 543 544 static const char *ip6nh[] = { 545 /*0*/ "hop by hop", 546 "ICMP", 547 "IGMP", 548 NULL, 549 "IP", 550 /*5*/ NULL, 551 "TCP", 552 NULL, 553 NULL, 554 NULL, 555 /*10*/ NULL, NULL, NULL, NULL, NULL, 556 /*15*/ NULL, 557 NULL, 558 "UDP", 559 NULL, 560 NULL, 561 /*20*/ NULL, 562 NULL, 563 "IDP", 564 NULL, 565 NULL, 566 /*25*/ NULL, 567 NULL, 568 NULL, 569 NULL, 570 NULL, 571 /*30*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 572 /*40*/ NULL, 573 "IP6", 574 NULL, 575 "routing", 576 "fragment", 577 /*45*/ NULL, NULL, NULL, NULL, NULL, 578 /*50*/ "ESP", 579 "AH", 580 NULL, 581 NULL, 582 NULL, 583 /*55*/ NULL, 584 NULL, 585 NULL, 586 "ICMP6", 587 "no next header", 588 /*60*/ "destination option", 589 NULL, 590 NULL, 591 NULL, 592 NULL, 593 /*65*/ NULL, NULL, NULL, NULL, NULL, 594 /*70*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 595 /*80*/ NULL, 596 NULL, 597 NULL, 598 NULL, 599 NULL, 600 NULL, 601 NULL, 602 NULL, 603 NULL, 604 "OSPF", 605 /*90*/ NULL, NULL, NULL, NULL, NULL, 606 /*95*/ NULL, 607 NULL, 608 "Ethernet", 609 NULL, 610 NULL, 611 /*100*/ NULL, 612 NULL, 613 NULL, 614 "PIM", 615 NULL, 616 /*105*/ NULL, NULL, NULL, NULL, NULL, 617 /*110*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 618 /*120*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 619 /*130*/ NULL, 620 NULL, 621 "SCTP", 622 NULL, 623 NULL, 624 /*135*/ NULL, NULL, NULL, NULL, NULL, 625 /*140*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 626 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 627 /*160*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 628 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 629 /*180*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 630 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 631 /*200*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 632 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 633 /*220*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 634 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 635 /*240*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 636 NULL, NULL, NULL, NULL, NULL, NULL 637 }; 638 639 /* 640 * Dump IP6 statistics structure. 641 */ 642 void 643 ip6_stats(u_long off, const char *name) 644 { 645 uint64_t ip6stat[IP6_NSTATS]; 646 int first, i; 647 struct protoent *ep; 648 const char *n; 649 650 if (use_sysctl) { 651 size_t size = sizeof(ip6stat); 652 653 if (prog_sysctlbyname("net.inet6.ip6.stats", ip6stat, &size, 654 NULL, 0) == -1 && errno != ENOMEM) 655 return; 656 } else { 657 warnx("%s stats not available via KVM.", name); 658 return; 659 } 660 printf("%s:\n", name); 661 662 #define p(f, m) if (ip6stat[f] || sflag <= 1) \ 663 printf(m, (unsigned long long)ip6stat[f], plural(ip6stat[f])) 664 #define p1(f, m) if (ip6stat[f] || sflag <= 1) \ 665 printf(m, (unsigned long long)ip6stat[f]) 666 667 p(IP6_STAT_TOTAL, "\t%llu total packet%s received\n"); 668 p1(IP6_STAT_TOOSMALL, "\t%llu with size smaller than minimum\n"); 669 p1(IP6_STAT_TOOSHORT, "\t%llu with data size < data length\n"); 670 p1(IP6_STAT_BADOPTIONS, "\t%llu with bad options\n"); 671 p1(IP6_STAT_BADVERS, "\t%llu with incorrect version number\n"); 672 p(IP6_STAT_FRAGMENTS, "\t%llu fragment%s received\n"); 673 p(IP6_STAT_FRAGDROPPED, 674 "\t%llu fragment%s dropped (dup or out of space)\n"); 675 p(IP6_STAT_FRAGTIMEOUT, "\t%llu fragment%s dropped after timeout\n"); 676 p(IP6_STAT_FRAGOVERFLOW, "\t%llu fragment%s that exceeded limit\n"); 677 p(IP6_STAT_REASSEMBLED, "\t%llu packet%s reassembled ok\n"); 678 p(IP6_STAT_DELIVERED, "\t%llu packet%s for this host\n"); 679 p(IP6_STAT_FORWARD, "\t%llu packet%s forwarded\n"); 680 p(IP6_STAT_FASTFORWARD, "\t%llu packet%s fast forwarded\n"); 681 p1(IP6_STAT_FASTFORWARDFLOWS, "\t%llu fast forward flows\n"); 682 p(IP6_STAT_CANTFORWARD, "\t%llu packet%s not forwardable\n"); 683 p(IP6_STAT_REDIRECTSENT, "\t%llu redirect%s sent\n"); 684 p(IP6_STAT_LOCALOUT, "\t%llu packet%s sent from this host\n"); 685 p(IP6_STAT_RAWOUT, "\t%llu packet%s sent with fabricated ip header\n"); 686 p(IP6_STAT_ODROPPED, 687 "\t%llu output packet%s dropped due to no bufs, etc.\n"); 688 p(IP6_STAT_NOROUTE, 689 "\t%llu output packet%s discarded due to no route\n"); 690 p(IP6_STAT_FRAGMENTED, "\t%llu output datagram%s fragmented\n"); 691 p(IP6_STAT_OFRAGMENTS, "\t%llu fragment%s created\n"); 692 p(IP6_STAT_CANTFRAG, "\t%llu datagram%s that can't be fragmented\n"); 693 p(IP6_STAT_BADSCOPE, "\t%llu packet%s that violated scope rules\n"); 694 p(IP6_STAT_NOTMEMBER, "\t%llu multicast packet%s which we don't join\n"); 695 for (first = 1, i = 0; i < 256; i++) 696 if (ip6stat[IP6_STAT_NXTHIST + i] != 0) { 697 if (first) { 698 printf("\tInput packet histogram:\n"); 699 first = 0; 700 } 701 n = NULL; 702 if (ip6nh[i]) 703 n = ip6nh[i]; 704 else if ((ep = getprotobynumber(i)) != NULL) 705 n = ep->p_name; 706 if (n) 707 printf("\t\t%s: %llu\n", n, 708 (unsigned long long)ip6stat[IP6_STAT_NXTHIST + i]); 709 else 710 printf("\t\t#%d: %llu\n", i, 711 (unsigned long long)ip6stat[IP6_STAT_NXTHIST + i]); 712 } 713 printf("\tMbuf statistics:\n"); 714 p(IP6_STAT_M1, "\t\t%llu one mbuf%s\n"); 715 for (first = 1, i = 0; i < 32; i++) { 716 char ifbuf[IFNAMSIZ]; 717 if (ip6stat[IP6_STAT_M2M + i] != 0) { 718 if (first) { 719 printf("\t\ttwo or more mbuf:\n"); 720 first = 0; 721 } 722 printf("\t\t\t%s = %llu\n", 723 if_indextoname(i, ifbuf), 724 (unsigned long long)ip6stat[IP6_STAT_M2M + i]); 725 } 726 } 727 p(IP6_STAT_MEXT1, "\t\t%llu one ext mbuf%s\n"); 728 p(IP6_STAT_MEXT2M, "\t\t%llu two or more ext mbuf%s\n"); 729 p(IP6_STAT_EXTHDRTOOLONG, 730 "\t%llu packet%s whose headers are not continuous\n"); 731 p(IP6_STAT_NOGIF, "\t%llu tunneling packet%s that can't find gif\n"); 732 p(IP6_STAT_NOIPSEC, 733 "\t%llu tunneling packet%s that can't find ipsecif\n"); 734 p(IP6_STAT_TOOMANYHDR, 735 "\t%llu packet%s discarded due to too many headers\n"); 736 737 /* for debugging source address selection */ 738 #define PRINT_SCOPESTAT(s, i) do { \ 739 switch (i) { /* XXX hardcoding in each case */ \ 740 case 1: \ 741 p(s, "\t\t%llu node-local%s\n"); \ 742 break; \ 743 case 2: \ 744 p(s, "\t\t%llu link-local%s\n"); \ 745 break; \ 746 case 5: \ 747 p(s, "\t\t%llu site-local%s\n"); \ 748 break; \ 749 case 14: \ 750 p(s, "\t\t%llu global%s\n"); \ 751 break; \ 752 default: \ 753 printf("\t\t%llu addresses scope=%x\n", \ 754 (unsigned long long)ip6stat[s], i); \ 755 } \ 756 } while(0); 757 758 p(IP6_STAT_SOURCES_NONE, 759 "\t%llu failure%s of source address selection\n"); 760 for (first = 1, i = 0; i < 16; i++) { 761 if (ip6stat[IP6_STAT_SOURCES_SAMEIF + i]) { 762 if (first) { 763 printf("\tsource addresses on an outgoing I/F\n"); 764 first = 0; 765 } 766 PRINT_SCOPESTAT(IP6_STAT_SOURCES_SAMEIF + i, i); 767 } 768 } 769 for (first = 1, i = 0; i < 16; i++) { 770 if (ip6stat[IP6_STAT_SOURCES_OTHERIF + i]) { 771 if (first) { 772 printf("\tsource addresses on a non-outgoing I/F\n"); 773 first = 0; 774 } 775 PRINT_SCOPESTAT(IP6_STAT_SOURCES_OTHERIF + i, i); 776 } 777 } 778 for (first = 1, i = 0; i < 16; i++) { 779 if (ip6stat[IP6_STAT_SOURCES_SAMESCOPE + i]) { 780 if (first) { 781 printf("\tsource addresses of same scope\n"); 782 first = 0; 783 } 784 PRINT_SCOPESTAT(IP6_STAT_SOURCES_SAMESCOPE + i, i); 785 } 786 } 787 for (first = 1, i = 0; i < 16; i++) { 788 if (ip6stat[IP6_STAT_SOURCES_OTHERSCOPE + i]) { 789 if (first) { 790 printf("\tsource addresses of a different scope\n"); 791 first = 0; 792 } 793 PRINT_SCOPESTAT(IP6_STAT_SOURCES_OTHERSCOPE + i, i); 794 } 795 } 796 for (first = 1, i = 0; i < 16; i++) { 797 if (ip6stat[IP6_STAT_SOURCES_DEPRECATED + i]) { 798 if (first) { 799 printf("\tdeprecated source addresses\n"); 800 first = 0; 801 } 802 PRINT_SCOPESTAT(IP6_STAT_SOURCES_DEPRECATED + i, i); 803 } 804 } 805 806 p1(IP6_STAT_FORWARD_CACHEHIT, "\t%llu forward cache hit\n"); 807 p1(IP6_STAT_FORWARD_CACHEMISS, "\t%llu forward cache miss\n"); 808 p(IP6_STAT_PFILDROP_IN, "\t%llu input packet%s dropped by pfil\n"); 809 p(IP6_STAT_PFILDROP_OUT, "\t%llu output packet%s dropped by pfil\n"); 810 p(IP6_STAT_IPSECDROP_IN, "\t%llu input packet%s dropped by IPsec\n"); 811 p(IP6_STAT_IPSECDROP_OUT, "\t%llu output packet%s dropped by IPsec\n"); 812 p(IP6_STAT_IFDROP, 813 "\t%llu input packet%s dropped due to interface state\n"); 814 p(IP6_STAT_IDROPPED, 815 "\t%llu input packet%s dropped due to no bufs, etc.\n"); 816 p(IP6_STAT_TIMXCEED, 817 "\t%llu packet%s dropped due to hop limit exceeded\n"); 818 p(IP6_STAT_TOOBIG, "\t%llu packet%s dropped (too big)\n"); 819 p(IP6_STAT_RTREJECT, 820 "\t%llu output packet%s discarded due to reject route\n"); 821 #undef p 822 #undef p1 823 } 824 825 /* 826 * Dump IPv6 per-interface statistics based on RFC 2465. 827 */ 828 void 829 ip6_ifstats(const char *ifname) 830 { 831 struct in6_ifreq ifr; 832 int s; 833 #define p(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \ 834 printf(m, (unsigned long long)ifr.ifr_ifru.ifru_stat.f, \ 835 plural(ifr.ifr_ifru.ifru_stat.f)) 836 #define p_5(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \ 837 printf(m, (unsigned long long)ip6stat.f) 838 839 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 840 perror("Warning: socket(AF_INET6)"); 841 return; 842 } 843 844 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 845 printf("ip6 on %s:\n", ifname); 846 847 if (ioctl(s, SIOCGIFSTAT_IN6, (char *)&ifr) < 0) { 848 perror("Warning: ioctl(SIOCGIFSTAT_IN6)"); 849 goto end; 850 } 851 852 p(ifs6_in_receive, "\t%llu total input datagram%s\n"); 853 p(ifs6_in_hdrerr, "\t%llu datagram%s with invalid header received\n"); 854 p(ifs6_in_toobig, "\t%llu datagram%s exceeded MTU received\n"); 855 p(ifs6_in_noroute, "\t%llu datagram%s with no route received\n"); 856 p(ifs6_in_addrerr, "\t%llu datagram%s with invalid dst received\n"); 857 p(ifs6_in_truncated, "\t%llu truncated datagram%s received\n"); 858 p(ifs6_in_protounknown, 859 "\t%llu datagram%s with unknown proto received\n"); 860 p(ifs6_in_discard, "\t%llu input datagram%s discarded\n"); 861 p(ifs6_in_deliver, 862 "\t%llu datagram%s delivered to an upper layer protocol\n"); 863 p(ifs6_out_forward, "\t%llu datagram%s forwarded to this interface\n"); 864 p(ifs6_out_request, 865 "\t%llu datagram%s sent from an upper layer protocol\n"); 866 p(ifs6_out_discard, "\t%llu total discarded output datagram%s\n"); 867 p(ifs6_out_fragok, "\t%llu output datagram%s fragmented\n"); 868 p(ifs6_out_fragfail, "\t%llu output datagram%s failed on fragment\n"); 869 p(ifs6_out_fragcreat, 870 "\t%llu output datagram%s succeeded on fragment\n"); 871 p(ifs6_reass_reqd, "\t%llu incoming datagram%s fragmented\n"); 872 p(ifs6_reass_ok, "\t%llu datagram%s reassembled\n"); 873 p(ifs6_reass_fail, "\t%llu datagram%s failed on reassembling\n"); 874 p(ifs6_in_mcast, "\t%llu multicast datagram%s received\n"); 875 p(ifs6_out_mcast, "\t%llu multicast datagram%s sent\n"); 876 877 end: 878 close(s); 879 880 #undef p 881 #undef p_5 882 } 883 884 static const char *icmp6names[256] = { 885 "#0", 886 "unreach", 887 "packet too big", 888 "time exceed", 889 "parameter problem", 890 "#5", 891 "#6", 892 "#7", 893 "#8", 894 "#9", 895 "#10", 896 "#11", 897 "#12", 898 "#13", 899 "#14", 900 "#15", 901 "#16", 902 "#17", 903 "#18", 904 "#19", 905 "#20", 906 "#21", 907 "#22", 908 "#23", 909 "#24", 910 "#25", 911 "#26", 912 "#27", 913 "#28", 914 "#29", 915 "#30", 916 "#31", 917 "#32", 918 "#33", 919 "#34", 920 "#35", 921 "#36", 922 "#37", 923 "#38", 924 "#39", 925 "#40", 926 "#41", 927 "#42", 928 "#43", 929 "#44", 930 "#45", 931 "#46", 932 "#47", 933 "#48", 934 "#49", 935 "#50", 936 "#51", 937 "#52", 938 "#53", 939 "#54", 940 "#55", 941 "#56", 942 "#57", 943 "#58", 944 "#59", 945 "#60", 946 "#61", 947 "#62", 948 "#63", 949 "#64", 950 "#65", 951 "#66", 952 "#67", 953 "#68", 954 "#69", 955 "#70", 956 "#71", 957 "#72", 958 "#73", 959 "#74", 960 "#75", 961 "#76", 962 "#77", 963 "#78", 964 "#79", 965 "#80", 966 "#81", 967 "#82", 968 "#83", 969 "#84", 970 "#85", 971 "#86", 972 "#87", 973 "#88", 974 "#89", 975 "#80", 976 "#91", 977 "#92", 978 "#93", 979 "#94", 980 "#95", 981 "#96", 982 "#97", 983 "#98", 984 "#99", 985 "#100", 986 "#101", 987 "#102", 988 "#103", 989 "#104", 990 "#105", 991 "#106", 992 "#107", 993 "#108", 994 "#109", 995 "#110", 996 "#111", 997 "#112", 998 "#113", 999 "#114", 1000 "#115", 1001 "#116", 1002 "#117", 1003 "#118", 1004 "#119", 1005 "#120", 1006 "#121", 1007 "#122", 1008 "#123", 1009 "#124", 1010 "#125", 1011 "#126", 1012 "#127", 1013 "echo", 1014 "echo reply", 1015 "multicast listener query", 1016 "multicast listener report", 1017 "multicast listener done", 1018 "router solicitation", 1019 "router advertisement", 1020 "neighbor solicitation", 1021 "neighbor advertisement", 1022 "redirect", 1023 "router renumbering", 1024 "node information request", 1025 "node information reply", 1026 "#141", 1027 "#142", 1028 "multicast listener report (v2)", 1029 "home agent discovery request", 1030 "home agent discovery reply", 1031 "mobile prefix solicitation", 1032 "mobile prefix advertisement", 1033 "#148", 1034 "#149", 1035 "#150", 1036 "multicast router advertisement", 1037 "multicast router solicitation", 1038 "multicast router termination", 1039 "#154", 1040 "#155", 1041 "#156", 1042 "#157", 1043 "#158", 1044 "#159", 1045 "#160", 1046 "#161", 1047 "#162", 1048 "#163", 1049 "#164", 1050 "#165", 1051 "#166", 1052 "#167", 1053 "#168", 1054 "#169", 1055 "#170", 1056 "#171", 1057 "#172", 1058 "#173", 1059 "#174", 1060 "#175", 1061 "#176", 1062 "#177", 1063 "#178", 1064 "#179", 1065 "#180", 1066 "#181", 1067 "#182", 1068 "#183", 1069 "#184", 1070 "#185", 1071 "#186", 1072 "#187", 1073 "#188", 1074 "#189", 1075 "#180", 1076 "#191", 1077 "#192", 1078 "#193", 1079 "#194", 1080 "#195", 1081 "#196", 1082 "#197", 1083 "#198", 1084 "#199", 1085 "#200", 1086 "#201", 1087 "#202", 1088 "#203", 1089 "#204", 1090 "#205", 1091 "#206", 1092 "#207", 1093 "#208", 1094 "#209", 1095 "#210", 1096 "#211", 1097 "#212", 1098 "#213", 1099 "#214", 1100 "#215", 1101 "#216", 1102 "#217", 1103 "#218", 1104 "#219", 1105 "#220", 1106 "#221", 1107 "#222", 1108 "#223", 1109 "#224", 1110 "#225", 1111 "#226", 1112 "#227", 1113 "#228", 1114 "#229", 1115 "#230", 1116 "#231", 1117 "#232", 1118 "#233", 1119 "#234", 1120 "#235", 1121 "#236", 1122 "#237", 1123 "#238", 1124 "#239", 1125 "#240", 1126 "#241", 1127 "#242", 1128 "#243", 1129 "#244", 1130 "#245", 1131 "#246", 1132 "#247", 1133 "#248", 1134 "#249", 1135 "#250", 1136 "#251", 1137 "#252", 1138 "#253", 1139 "#254", 1140 "#255" 1141 }; 1142 1143 /* 1144 * Dump ICMPv6 statistics. 1145 */ 1146 void 1147 icmp6_stats(u_long off, const char *name) 1148 { 1149 uint64_t icmp6stat[ICMP6_NSTATS]; 1150 int i, first; 1151 1152 if (use_sysctl) { 1153 size_t size = sizeof(icmp6stat); 1154 1155 if (prog_sysctlbyname("net.inet6.icmp6.stats", icmp6stat, 1156 &size, NULL, 0) == -1 && errno != ENOMEM) 1157 return; 1158 } else { 1159 warnx("%s stats not available via KVM.", name); 1160 return; 1161 } 1162 1163 printf("%s:\n", name); 1164 1165 #define p(f, m) if (icmp6stat[f] || sflag <= 1) \ 1166 printf(m, (unsigned long long)icmp6stat[f], \ 1167 plural(icmp6stat[f])) 1168 #define p_oerr(f, m) if (icmp6stat[ICMP6_STAT_OUTERRHIST + f] || sflag <= 1) \ 1169 printf(m, \ 1170 (unsigned long long)icmp6stat[ICMP6_STAT_OUTERRHIST + f]) 1171 1172 p(ICMP6_STAT_ERROR, "\t%llu call%s to icmp6_error\n"); 1173 p(ICMP6_STAT_CANTERROR, 1174 "\t%llu error%s not generated because old message was icmp6 or so\n"); 1175 p(ICMP6_STAT_TOOFREQ, 1176 "\t%llu error%s not generated because of rate limitation\n"); 1177 for (first = 1, i = 0; i < 256; i++) 1178 if (icmp6stat[ICMP6_STAT_OUTHIST + i] != 0) { 1179 if (first) { 1180 printf("\tOutput packet histogram:\n"); 1181 first = 0; 1182 } 1183 printf("\t\t%s: %llu\n", icmp6names[i], 1184 (unsigned long long)icmp6stat[ICMP6_STAT_OUTHIST + i]); 1185 } 1186 p(ICMP6_STAT_BADCODE, "\t%llu message%s with bad code fields\n"); 1187 p(ICMP6_STAT_TOOSHORT, "\t%llu message%s < minimum length\n"); 1188 p(ICMP6_STAT_CHECKSUM, "\t%llu bad checksum%s\n"); 1189 p(ICMP6_STAT_BADLEN, "\t%llu message%s with bad length\n"); 1190 for (first = 1, i = 0; i < ICMP6_MAXTYPE; i++) 1191 if (icmp6stat[ICMP6_STAT_INHIST + i] != 0) { 1192 if (first) { 1193 printf("\tInput packet histogram:\n"); 1194 first = 0; 1195 } 1196 printf("\t\t%s: %llu\n", icmp6names[i], 1197 (unsigned long long)icmp6stat[ICMP6_STAT_INHIST + i]); 1198 } 1199 printf("\tHistogram of error messages to be generated:\n"); 1200 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_NOROUTE, "\t\t%llu no route\n"); 1201 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_ADMIN, 1202 "\t\t%llu administratively prohibited\n"); 1203 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_BEYONDSCOPE, 1204 "\t\t%llu beyond scope\n"); 1205 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_ADDR, 1206 "\t\t%llu address unreachable\n"); 1207 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_NOPORT, 1208 "\t\t%llu port unreachable\n"); 1209 p_oerr(ICMP6_ERRSTAT_PACKET_TOO_BIG, "\t\t%llu packet too big\n"); 1210 p_oerr(ICMP6_ERRSTAT_TIME_EXCEED_TRANSIT, 1211 "\t\t%llu time exceed transit\n"); 1212 p_oerr(ICMP6_ERRSTAT_TIME_EXCEED_REASSEMBLY, 1213 "\t\t%llu time exceed reassembly\n"); 1214 p_oerr(ICMP6_ERRSTAT_PARAMPROB_HEADER, 1215 "\t\t%llu erroneous header field\n"); 1216 p_oerr(ICMP6_ERRSTAT_PARAMPROB_NEXTHEADER, 1217 "\t\t%llu unrecognized next header\n"); 1218 p_oerr(ICMP6_ERRSTAT_PARAMPROB_OPTION, 1219 "\t\t%llu unrecognized option\n"); 1220 p_oerr(ICMP6_ERRSTAT_REDIRECT, "\t\t%llu redirect\n"); 1221 p_oerr(ICMP6_ERRSTAT_UNKNOWN, "\t\t%llu unknown\n"); 1222 1223 p(ICMP6_STAT_REFLECT, "\t%llu message response%s generated\n"); 1224 p(ICMP6_STAT_ND_TOOMANYOPT, 1225 "\t%llu message%s with too many ND options\n"); 1226 p(ICMP6_STAT_ND_BADOPT, "\t%llu message%s with bad ND options\n"); 1227 p(ICMP6_STAT_BADNS, "\t%llu bad neighbor solicitation message%s\n"); 1228 p(ICMP6_STAT_BADNA, "\t%llu bad neighbor advertisement message%s\n"); 1229 p(ICMP6_STAT_BADRS, "\t%llu bad router solicitation message%s\n"); 1230 p(ICMP6_STAT_BADRA, "\t%llu bad router advertisement message%s\n"); 1231 p(ICMP6_STAT_DROPPED_RAROUTE, 1232 "\t%llu router advertisement route%s dropped\n"); 1233 p(ICMP6_STAT_BADREDIRECT, "\t%llu bad redirect message%s\n"); 1234 p(ICMP6_STAT_PMTUCHG, "\t%llu path MTU change%s\n"); 1235 #undef p 1236 #undef p_oerr 1237 } 1238 1239 /* 1240 * Dump ICMPv6 per-interface statistics based on RFC 2466. 1241 */ 1242 void 1243 icmp6_ifstats(const char *ifname) 1244 { 1245 struct in6_ifreq ifr; 1246 int s; 1247 #define p(f, m) if (ifr.ifr_ifru.ifru_icmp6stat.f || sflag <= 1) \ 1248 printf(m, (unsigned long long)ifr.ifr_ifru.ifru_icmp6stat.f, \ 1249 plural(ifr.ifr_ifru.ifru_icmp6stat.f)) 1250 1251 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 1252 perror("Warning: socket(AF_INET6)"); 1253 return; 1254 } 1255 1256 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 1257 printf("icmp6 on %s:\n", ifname); 1258 1259 if (ioctl(s, SIOCGIFSTAT_ICMP6, (char *)&ifr) < 0) { 1260 perror("Warning: ioctl(SIOCGIFSTAT_ICMP6)"); 1261 goto end; 1262 } 1263 1264 p(ifs6_in_msg, "\t%llu total input message%s\n"); 1265 p(ifs6_in_error, "\t%llu total input error message%s\n"); 1266 p(ifs6_in_dstunreach, 1267 "\t%llu input destination unreachable error%s\n"); 1268 p(ifs6_in_adminprohib, 1269 "\t%llu input administratively prohibited error%s\n"); 1270 p(ifs6_in_timeexceed, "\t%llu input time exceeded error%s\n"); 1271 p(ifs6_in_paramprob, "\t%llu input parameter problem error%s\n"); 1272 p(ifs6_in_pkttoobig, "\t%llu input packet too big error%s\n"); 1273 p(ifs6_in_echo, "\t%llu input echo request%s\n"); 1274 p(ifs6_in_echoreply, "\t%llu input echo reply%s\n"); 1275 p(ifs6_in_routersolicit, "\t%llu input router solicitation%s\n"); 1276 p(ifs6_in_routeradvert, "\t%llu input router advertisement%s\n"); 1277 p(ifs6_in_neighborsolicit, "\t%llu input neighbor solicitation%s\n"); 1278 p(ifs6_in_neighboradvert, "\t%llu input neighbor advertisement%s\n"); 1279 p(ifs6_in_redirect, "\t%llu input redirect%s\n"); 1280 p(ifs6_in_mldquery, "\t%llu input MLD query%s\n"); 1281 p(ifs6_in_mldreport, "\t%llu input MLD report%s\n"); 1282 p(ifs6_in_mlddone, "\t%llu input MLD done%s\n"); 1283 1284 p(ifs6_out_msg, "\t%llu total output message%s\n"); 1285 p(ifs6_out_error, "\t%llu total output error message%s\n"); 1286 p(ifs6_out_dstunreach, 1287 "\t%llu output destination unreachable error%s\n"); 1288 p(ifs6_out_adminprohib, 1289 "\t%llu output administratively prohibited error%s\n"); 1290 p(ifs6_out_timeexceed, "\t%llu output time exceeded error%s\n"); 1291 p(ifs6_out_paramprob, "\t%llu output parameter problem error%s\n"); 1292 p(ifs6_out_pkttoobig, "\t%llu output packet too big error%s\n"); 1293 p(ifs6_out_echo, "\t%llu output echo request%s\n"); 1294 p(ifs6_out_echoreply, "\t%llu output echo reply%s\n"); 1295 p(ifs6_out_routersolicit, "\t%llu output router solicitation%s\n"); 1296 p(ifs6_out_routeradvert, "\t%llu output router advertisement%s\n"); 1297 p(ifs6_out_neighborsolicit, "\t%llu output neighbor solicitation%s\n"); 1298 p(ifs6_out_neighboradvert, "\t%llu output neighbor advertisement%s\n"); 1299 p(ifs6_out_redirect, "\t%llu output redirect%s\n"); 1300 p(ifs6_out_mldquery, "\t%llu output MLD query%s\n"); 1301 p(ifs6_out_mldreport, "\t%llu output MLD report%s\n"); 1302 p(ifs6_out_mlddone, "\t%llu output MLD done%s\n"); 1303 1304 end: 1305 close(s); 1306 #undef p 1307 } 1308 1309 /* 1310 * Dump PIM statistics structure. 1311 */ 1312 void 1313 pim6_stats(u_long off, const char *name) 1314 { 1315 uint64_t pim6stat[PIM6_NSTATS]; 1316 1317 if (use_sysctl) { 1318 size_t size = sizeof(pim6stat); 1319 1320 if (prog_sysctlbyname("net.inet6.pim6.stats", pim6stat, &size, 1321 NULL, 0) == -1 && errno != ENOMEM) 1322 return; 1323 } else { 1324 warnx("%s stats not available via KVM.", name); 1325 return; 1326 } 1327 printf("%s:\n", name); 1328 1329 #define p(f, m) if (pim6stat[f] || sflag <= 1) \ 1330 printf(m, (unsigned long long)pim6stat[f], plural(pim6stat[f])) 1331 1332 p(PIM6_STAT_RCV_TOTAL, "\t%llu message%s received\n"); 1333 p(PIM6_STAT_RCV_TOOSHORT, 1334 "\t%llu message%s received with too few bytes\n"); 1335 p(PIM6_STAT_RCV_BADSUM, 1336 "\t%llu message%s received with bad checksum\n"); 1337 p(PIM6_STAT_RCV_BADVERSION, 1338 "\t%llu message%s received with bad version\n"); 1339 p(PIM6_STAT_RCV_REGISTERS, "\t%llu register%s received\n"); 1340 p(PIM6_STAT_RCV_BADREGISTERS, "\t%llu bad register%s received\n"); 1341 p(PIM6_STAT_SND_REGISTERS, "\t%llu register%s sent\n"); 1342 #undef p 1343 } 1344 1345 /* 1346 * Dump raw ip6 statistics structure. 1347 */ 1348 void 1349 rip6_stats(u_long off, const char *name) 1350 { 1351 uint64_t rip6stat[RIP6_NSTATS]; 1352 uint64_t delivered; 1353 1354 if (use_sysctl) { 1355 size_t size = sizeof(rip6stat); 1356 1357 if (prog_sysctlbyname("net.inet6.raw6.stats", rip6stat, &size, 1358 NULL, 0) == -1 && errno != ENOMEM) 1359 return; 1360 } else { 1361 warnx("%s stats not available via KVM.", name); 1362 return; 1363 } 1364 printf("%s:\n", name); 1365 1366 #define p(f, m) if (rip6stat[f] || sflag <= 1) \ 1367 printf(m, (unsigned long long)rip6stat[f], plural(rip6stat[f])) 1368 p(RIP6_STAT_IPACKETS, "\t%llu message%s received\n"); 1369 p(RIP6_STAT_ISUM, "\t%llu checksum calculation%s on inbound\n"); 1370 p(RIP6_STAT_BADSUM, "\t%llu message%s with bad checksum\n"); 1371 p(RIP6_STAT_NOSOCK, "\t%llu message%s dropped due to no socket\n"); 1372 p(RIP6_STAT_NOSOCKMCAST, 1373 "\t%llu multicast message%s dropped due to no socket\n"); 1374 p(RIP6_STAT_FULLSOCK, 1375 "\t%llu message%s dropped due to full socket buffers\n"); 1376 delivered = rip6stat[RIP6_STAT_IPACKETS] - 1377 rip6stat[RIP6_STAT_BADSUM] - 1378 rip6stat[RIP6_STAT_NOSOCK] - 1379 rip6stat[RIP6_STAT_NOSOCKMCAST] - 1380 rip6stat[RIP6_STAT_FULLSOCK]; 1381 if (delivered || sflag <= 1) 1382 printf("\t%llu delivered\n", (unsigned long long)delivered); 1383 p(RIP6_STAT_OPACKETS, "\t%llu datagram%s output\n"); 1384 #undef p 1385 } 1386 1387 /* 1388 * Pretty print an Internet address (net address + port). 1389 * Take numeric_addr and numeric_port into consideration. 1390 */ 1391 void 1392 inet6print(const struct in6_addr *in6, int port, const char *proto) 1393 { 1394 #define GETSERVBYPORT6(port, proto, ret) \ 1395 do { \ 1396 if (strcmp((proto), "tcp6") == 0) \ 1397 (ret) = getservbyport((int)(port), "tcp"); \ 1398 else if (strcmp((proto), "udp6") == 0) \ 1399 (ret) = getservbyport((int)(port), "udp"); \ 1400 else \ 1401 (ret) = getservbyport((int)(port), (proto)); \ 1402 } while (0) 1403 1404 struct servent *sp = 0; 1405 char line[80], *cp; 1406 int lwidth; 1407 1408 lwidth = Aflag ? 12 : 16; 1409 if (vflag && lwidth < (int)strlen(inet6name(in6))) 1410 lwidth = strlen(inet6name(in6)); 1411 snprintf(line, sizeof(line), "%.*s.", lwidth, inet6name(in6)); 1412 cp = strchr(line, '\0'); 1413 if (!numeric_port && port) 1414 GETSERVBYPORT6(port, proto, sp); 1415 if (sp || port == 0) 1416 snprintf(cp, sizeof(line) - (cp - line), 1417 "%s", sp ? sp->s_name : "*"); 1418 else 1419 snprintf(cp, sizeof(line) - (cp - line), 1420 "%d", ntohs((u_short)port)); 1421 lwidth = Aflag ? 18 : 22; 1422 if (vflag && lwidth < (int)strlen(line)) 1423 lwidth = strlen(line); 1424 printf(" %-*.*s", lwidth, lwidth, line); 1425 } 1426 1427 /* 1428 * Construct an Internet address representation. 1429 * If the numeric_addr has been supplied, give 1430 * numeric value, otherwise try for symbolic name. 1431 */ 1432 1433 char * 1434 inet6name(const struct in6_addr *in6p) 1435 { 1436 char *cp; 1437 static char line[NI_MAXHOST]; 1438 struct hostent *hp; 1439 static char domain[MAXHOSTNAMELEN + 1]; 1440 static int first = 1; 1441 char hbuf[NI_MAXHOST]; 1442 struct sockaddr_in6 sin6; 1443 const int niflag = NI_NUMERICHOST; 1444 1445 if (first && !numeric_addr) { 1446 first = 0; 1447 if (gethostname(domain, MAXHOSTNAMELEN) == 0 && 1448 (cp = strchr(domain, '.'))) 1449 (void) strlcpy(domain, cp + 1, sizeof(domain)); 1450 else 1451 domain[0] = 0; 1452 } 1453 cp = 0; 1454 if (!numeric_addr && !IN6_IS_ADDR_UNSPECIFIED(in6p)) { 1455 hp = gethostbyaddr((const char *)in6p, sizeof(*in6p), AF_INET6); 1456 if (hp) { 1457 if ((cp = strchr(hp->h_name, '.')) && 1458 !strcmp(cp + 1, domain)) 1459 *cp = 0; 1460 cp = hp->h_name; 1461 } 1462 } 1463 if (IN6_IS_ADDR_UNSPECIFIED(in6p)) 1464 strlcpy(line, "*", sizeof(line)); 1465 else if (cp) 1466 strlcpy(line, cp, sizeof(line)); 1467 else { 1468 memset(&sin6, 0, sizeof(sin6)); 1469 sin6.sin6_len = sizeof(sin6); 1470 sin6.sin6_family = AF_INET6; 1471 sin6.sin6_addr = *in6p; 1472 inet6_getscopeid(&sin6, 1473 INET6_IS_ADDR_LINKLOCAL | INET6_IS_ADDR_MC_LINKLOCAL); 1474 if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, 1475 hbuf, sizeof(hbuf), NULL, 0, niflag) != 0) 1476 strlcpy(hbuf, "?", sizeof(hbuf)); 1477 strlcpy(line, hbuf, sizeof(line)); 1478 } 1479 return line; 1480 } 1481 1482 /* 1483 * Dump the contents of a TCP6 PCB. 1484 */ 1485 void 1486 tcp6_dump(u_long off, const char *name, u_long pcbaddr) 1487 { 1488 callout_impl_t *ci; 1489 int i, hardticks; 1490 struct kinfo_pcb *pcblist; 1491 #ifdef TCP6 1492 #define mypcb tcp6cb 1493 #else 1494 #define mypcb tcpcb 1495 #endif 1496 size_t j, len; 1497 1498 if (use_sysctl) 1499 pcblist = getpcblist_sysctl(name, &len); 1500 else 1501 pcblist = getpcblist_kmem(off, name, &len); 1502 1503 for (j = 0; j < len; j++) 1504 if (pcblist[j].ki_ppcbaddr == pcbaddr) 1505 break; 1506 free(pcblist); 1507 1508 if (j == len) 1509 errx(1, "0x%lx is not a valid pcb address", pcbaddr); 1510 1511 kread(pcbaddr, (char *)&mypcb, sizeof(mypcb)); 1512 hardticks = get_hardticks(); 1513 1514 printf("TCP Protocol Control Block at 0x%08lx:\n\n", pcbaddr); 1515 printf("Timers:\n"); 1516 for (i = 0; i < TCP6T_NTIMERS; i++) { 1517 char buf[128]; 1518 ci = (callout_impl_t *)&tcpcb.t_timer[i]; 1519 snprintb(buf, sizeof(buf), CALLOUT_FMT, ci->c_flags); 1520 printf("\t%s\t%s", tcptimers[i], buf); 1521 if (ci->c_flags & CALLOUT_PENDING) 1522 printf("\t%d\n", ci->c_time - hardticks); 1523 else 1524 printf("\n"); 1525 } 1526 printf("\n\n"); 1527 1528 if (mypcb.t_state < 0 || mypcb.t_state >= TCP6_NSTATES) 1529 printf("State: %d", mypcb.t_state); 1530 else 1531 printf("State: %s", tcp6states[mypcb.t_state]); 1532 printf(", flags 0x%x, in6pcb 0x%lx\n\n", mypcb.t_flags, 1533 (u_long)mypcb.t_in6pcb); 1534 1535 printf("rxtshift %d, rxtcur %d, dupacks %d\n", mypcb.t_rxtshift, 1536 mypcb.t_rxtcur, mypcb.t_dupacks); 1537 #ifdef TCP6 1538 printf("peermaxseg %u, maxseg %u, force %d\n\n", mypcb.t_peermaxseg, 1539 mypcb.t_maxseg, mypcb.t_force); 1540 #else 1541 printf("peermss %u, ourmss %u, segsz %u, segqlen %u\n\n", 1542 tcpcb.t_peermss, tcpcb.t_ourmss, tcpcb.t_segsz, tcpcb.t_segqlen); 1543 #endif 1544 1545 printf("snd_una %u, snd_nxt %u, snd_up %u\n", 1546 mypcb.snd_una, mypcb.snd_nxt, mypcb.snd_up); 1547 printf("snd_wl1 %u, snd_wl2 %u, iss %u, snd_wnd %llu\n\n", 1548 mypcb.snd_wl1, mypcb.snd_wl2, mypcb.iss, 1549 (unsigned long long)mypcb.snd_wnd); 1550 1551 printf("rcv_wnd %llu, rcv_nxt %u, rcv_up %u, irs %u\n\n", 1552 (unsigned long long)mypcb.rcv_wnd, mypcb.rcv_nxt, 1553 mypcb.rcv_up, mypcb.irs); 1554 1555 printf("rcv_adv %u, snd_max %u, snd_cwnd %llu, snd_ssthresh %llu\n", 1556 mypcb.rcv_adv, mypcb.snd_max, (unsigned long long)mypcb.snd_cwnd, 1557 (unsigned long long)mypcb.snd_ssthresh); 1558 1559 #ifdef TCP6 1560 printf("idle %d, rtt %d, " mypcb.t_idle, mypcb.t_rtt); 1561 #else 1562 printf("rcvtime %u, rtttime %u, ", tcpcb.t_rcvtime, tcpcb.t_rtttime); 1563 #endif 1564 1565 printf("rtseq %u, srtt %d, rttvar %d, rttmin %d, " 1566 "max_sndwnd %llu\n\n", mypcb.t_rtseq, 1567 mypcb.t_srtt, mypcb.t_rttvar, mypcb.t_rttmin, 1568 (unsigned long long)mypcb.max_sndwnd); 1569 1570 printf("oobflags %d, iobc %d, softerror %d\n\n", mypcb.t_oobflags, 1571 mypcb.t_iobc, mypcb.t_softerror); 1572 1573 printf("snd_scale %d, rcv_scale %d, req_r_scale %d, req_s_scale %d\n", 1574 mypcb.snd_scale, mypcb.rcv_scale, mypcb.request_r_scale, 1575 mypcb.requested_s_scale); 1576 printf("ts_recent %u, ts_regent_age %d, last_ack_sent %u\n", 1577 mypcb.ts_recent, mypcb.ts_recent_age, mypcb.last_ack_sent); 1578 } 1579 1580 #endif /*INET6*/ 1581
Indexes created Wed Sep 24 14:09:57 GMT 2025