inet6.c revision 1.74
1 /* $NetBSD: inet6.c,v 1.74 2020/04/23 00:24:16 joerg 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 1.74 2020/04/23 00:24:16 joerg 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, u_int16_t lport, 192 const struct in6_addr *faddr, u_int16_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 return; 243 } 244 245 void 246 print_vtw_v6(const vtw_t *vtw) 247 { 248 const vtw_v6_t *v6 = (const vtw_v6_t *)vtw; 249 struct timeval delta; 250 char buf[2][128]; 251 static const struct timeval zero = {.tv_sec = 0, .tv_usec = 0}; 252 253 inet_ntop(AF_INET6, &v6->laddr, buf[0], sizeof(buf[0])); 254 inet_ntop(AF_INET6, &v6->faddr, buf[1], sizeof(buf[1])); 255 256 timersub(&vtw->expire, &now, &delta); 257 258 if (vtw->expire.tv_sec == 0 && vtw->expire.tv_usec == -1) { 259 dbg_printf("%15.15s:%d %15.15s:%d reclaimed\n" 260 ,buf[0], ntohs(v6->lport) 261 ,buf[1], ntohs(v6->fport)); 262 if (!(Vflag && vflag)) 263 return; 264 } else if (vtw->expire.tv_sec == 0) 265 return; 266 else if (timercmp(&delta, &zero, <) && !(Vflag && vflag)) { 267 dbg_printf("%15.15s:%d %15.15s:%d expired\n" 268 ,buf[0], ntohs(v6->lport) 269 ,buf[1], ntohs(v6->fport)); 270 return; 271 } else { 272 dbg_printf("%15.15s:%d %15.15s:%d expires in %.3fms\n" 273 ,buf[0], ntohs(v6->lport) 274 ,buf[1], ntohs(v6->fport) 275 ,delta.tv_sec * 1000.0 + delta.tv_usec / 1000.0); 276 } 277 ip6protopr0(0, 0, 0, 278 &v6->laddr, v6->lport, 279 &v6->faddr, v6->fport, 280 TCPS_TIME_WAIT, "tcp6", &vtw->expire); 281 } 282 283 284 static struct kinfo_pcb * 285 getpcblist_kmem(u_long off, const char *name, size_t *len) 286 { 287 struct socket sockb; 288 struct inpcbtable table; 289 struct inpcb_hdr *next, *prev; 290 int istcp = strcmp(name, "tcp6") == 0; 291 struct kinfo_pcb *pcblist; 292 size_t size = 100, i; 293 struct sockaddr_in6 sin6; 294 struct inpcbqueue *head; 295 296 if (off == 0) { 297 *len = 0; 298 return NULL; 299 } 300 kread(off, (char *)&table, sizeof (table)); 301 head = &table.inpt_queue; 302 next = TAILQ_FIRST(head); 303 prev = TAILQ_END(head); 304 305 if ((pcblist = malloc(size * sizeof(*pcblist))) == NULL) 306 err(1, "malloc"); 307 308 i = 0; 309 while (next != TAILQ_END(head)) { 310 kread((u_long)next, (char *)&in6pcb, sizeof in6pcb); 311 next = TAILQ_NEXT(&in6pcb, in6p_queue); 312 prev = next; 313 314 if (in6pcb.in6p_af != AF_INET6) 315 continue; 316 317 kread((u_long)in6pcb.in6p_socket, (char *)&sockb, 318 sizeof (sockb)); 319 if (istcp) { 320 #ifdef TCP6 321 kread((u_long)in6pcb.in6p_ppcb, 322 (char *)&tcp6cb, sizeof (tcp6cb)); 323 #else 324 kread((u_long)in6pcb.in6p_ppcb, 325 (char *)&tcpcb, sizeof (tcpcb)); 326 #endif 327 } 328 pcblist[i].ki_ppcbaddr = 329 istcp ? (uintptr_t) in6pcb.in6p_ppcb : (uintptr_t) prev; 330 pcblist[i].ki_rcvq = (uint64_t)sockb.so_rcv.sb_cc; 331 pcblist[i].ki_sndq = (uint64_t)sockb.so_snd.sb_cc; 332 sin6.sin6_addr = in6pcb.in6p_laddr; 333 sin6.sin6_port = in6pcb.in6p_lport; 334 memcpy(&pcblist[i].ki_s, &sin6, sizeof(sin6)); 335 sin6.sin6_addr = in6pcb.in6p_faddr; 336 sin6.sin6_port = in6pcb.in6p_fport; 337 memcpy(&pcblist[i].ki_d, &sin6, sizeof(sin6)); 338 pcblist[i].ki_tstate = tcpcb.t_state; 339 if (i++ == size) { 340 size += 100; 341 struct kinfo_pcb *n = realloc(pcblist, 342 size * sizeof(*pcblist)); 343 if (n == NULL) 344 err(1, "realloc"); 345 pcblist = n; 346 } 347 } 348 *len = i; 349 return pcblist; 350 } 351 352 void 353 ip6protopr(u_long off, const char *name) 354 { 355 struct kinfo_pcb *pcblist; 356 size_t i, len; 357 static int first = 1; 358 359 compact = 0; 360 if (Aflag) { 361 if (!numeric_addr) 362 width = 18; 363 else { 364 width = 21; 365 compact = 1; 366 } 367 } else 368 width = 22; 369 370 if (use_sysctl) 371 pcblist = getpcblist_sysctl(name, &len); 372 else 373 pcblist = getpcblist_kmem(off, name, &len); 374 375 for (i = 0; i < len; i++) { 376 struct sockaddr_in6 src, dst; 377 378 memcpy(&src, &pcblist[i].ki_s, sizeof(src)); 379 memcpy(&dst, &pcblist[i].ki_d, sizeof(dst)); 380 381 if (!aflag && IN6_IS_ADDR_UNSPECIFIED(&dst.sin6_addr)) 382 continue; 383 384 if (first) { 385 ip6protoprhdr(); 386 first = 0; 387 } 388 389 ip6protopr0((intptr_t) pcblist[i].ki_ppcbaddr, 390 pcblist[i].ki_rcvq, pcblist[i].ki_sndq, 391 &src.sin6_addr, src.sin6_port, 392 &dst.sin6_addr, dst.sin6_port, 393 pcblist[i].ki_tstate, name, NULL); 394 } 395 396 free(pcblist); 397 398 if (strcmp(name, "tcp6") == 0) { 399 struct timeval t; 400 timebase(&t); 401 gettimeofday(&now, NULL); 402 timersub(&now, &t, &now); 403 show_vtw_v6(print_vtw_v6); 404 } 405 } 406 407 #ifdef TCP6 408 /* 409 * Dump TCP6 statistics structure. 410 */ 411 void 412 tcp6_stats(u_long off, const char *name) 413 { 414 struct tcp6stat tcp6stat; 415 416 if (use_sysctl) { 417 size_t size = sizeof(tcp6stat); 418 419 if (prog_sysctlbyname("net.inet6.tcp6.stats", &tcp6stat, &size, 420 NULL, 0) == -1) 421 return; 422 } else { 423 warnx("%s stats not available via KVM.", name); 424 return; 425 } 426 427 printf ("%s:\n", name); 428 429 #define p(f, m) if (tcp6stat.f || sflag <= 1) \ 430 printf(m, tcp6stat.f, plural(tcp6stat.f)) 431 #define p2(f1, f2, m) if (tcp6stat.f1 || tcp6stat.f2 || sflag <= 1) \ 432 printf(m, tcp6stat.f1, plural(tcp6stat.f1), tcp6stat.f2, 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, "\t\t%ld ack%s (for %ld byte%s)\n"); 449 p(tcp6s_rcvdupack, "\t\t%ld duplicate ack%s\n"); 450 p(tcp6s_rcvacktoomuch, "\t\t%ld ack%s for unsent data\n"); 451 p2(tcp6s_rcvpack, tcp6s_rcvbyte, 452 "\t\t%ld packet%s (%ld byte%s) received in-sequence\n"); 453 p2(tcp6s_rcvduppack, tcp6s_rcvdupbyte, 454 "\t\t%ld completely duplicate packet%s (%ld byte%s)\n"); 455 p(tcp6s_pawsdrop, "\t\t%ld old duplicate packet%s\n"); 456 p2(tcp6s_rcvpartduppack, tcp6s_rcvpartdupbyte, 457 "\t\t%ld packet%s with some dup. data (%ld byte%s duped)\n"); 458 p2(tcp6s_rcvoopack, tcp6s_rcvoobyte, 459 "\t\t%ld out-of-order packet%s (%ld byte%s)\n"); 460 p2(tcp6s_rcvpackafterwin, tcp6s_rcvbyteafterwin, 461 "\t\t%ld packet%s (%ld byte%s) of data after window\n"); 462 p(tcp6s_rcvwinprobe, "\t\t%ld window probe%s\n"); 463 p(tcp6s_rcvwinupd, "\t\t%ld window update packet%s\n"); 464 p(tcp6s_rcvafterclose, "\t\t%ld packet%s received after close\n"); 465 p(tcp6s_rcvbadsum, "\t\t%ld discarded for bad checksum%s\n"); 466 p(tcp6s_rcvbadoff, "\t\t%ld discarded for bad header offset field%s\n"); 467 p(tcp6s_rcvshort, "\t\t%ld discarded because packet%s too short\n"); 468 p(tcp6s_connattempt, "\t%ld connection request%s\n"); 469 p(tcp6s_accepts, "\t%ld connection accept%s\n"); 470 p(tcp6s_badsyn, "\t%ld bad connection attempt%s\n"); 471 p(tcp6s_connects, "\t%ld connection%s established (including accepts)\n"); 472 p2(tcp6s_closed, tcp6s_drops, 473 "\t%ld connection%s closed (including %ld drop%s)\n"); 474 p(tcp6s_conndrops, "\t%ld embryonic connection%s dropped\n"); 475 p2(tcp6s_rttupdated, tcp6s_segstimed, 476 "\t%ld segment%s updated rtt (of %ld attempt%s)\n"); 477 p(tcp6s_rexmttimeo, "\t%ld retransmit timeout%s\n"); 478 p(tcp6s_timeoutdrop, "\t\t%ld connection%s dropped by rexmit timeout\n"); 479 p(tcp6s_persisttimeo, "\t%ld persist timeout%s\n"); 480 p(tcp6s_persistdrop, "\t%ld connection%s timed out in persist\n"); 481 p(tcp6s_keeptimeo, "\t%ld keepalive timeout%s\n"); 482 p(tcp6s_keepprobe, "\t\t%ld keepalive probe%s sent\n"); 483 p(tcp6s_keepdrops, "\t\t%ld connection%s dropped by keepalive\n"); 484 p(tcp6s_predack, "\t%ld correct ACK header prediction%s\n"); 485 p(tcp6s_preddat, "\t%ld correct data packet header prediction%s\n"); 486 p3(tcp6s_pcbcachemiss, "\t%ld PCB cache miss%s\n"); 487 #undef p 488 #undef p2 489 #undef p3 490 } 491 #endif 492 493 /* 494 * Dump UDP6 statistics structure. 495 */ 496 void 497 udp6_stats(u_long off, const char *name) 498 { 499 uint64_t udp6stat[UDP6_NSTATS]; 500 u_quad_t delivered; 501 502 if (use_sysctl) { 503 size_t size = sizeof(udp6stat); 504 505 if (prog_sysctlbyname("net.inet6.udp6.stats", udp6stat, &size, 506 NULL, 0) == -1) 507 return; 508 } else { 509 warnx("%s stats not available via KVM.", name); 510 return; 511 } 512 printf("%s:\n", name); 513 #define p(f, m) if (udp6stat[f] || sflag <= 1) \ 514 printf(m, (unsigned long long)udp6stat[f], plural(udp6stat[f])) 515 #define p1(f, m) if (udp6stat[f] || sflag <= 1) \ 516 printf(m, (unsigned long long)udp6stat[f]) 517 p(UDP6_STAT_IPACKETS, "\t%llu datagram%s received\n"); 518 p1(UDP6_STAT_HDROPS, "\t%llu with incomplete header\n"); 519 p1(UDP6_STAT_BADLEN, "\t%llu with bad data length field\n"); 520 p1(UDP6_STAT_BADSUM, "\t%llu with bad checksum\n"); 521 p1(UDP6_STAT_NOSUM, "\t%llu with no checksum\n"); 522 p1(UDP6_STAT_NOPORT, "\t%llu dropped due to no socket\n"); 523 p(UDP6_STAT_NOPORTMCAST, 524 "\t%llu multicast datagram%s dropped due to no socket\n"); 525 p1(UDP6_STAT_FULLSOCK, "\t%llu dropped due to full socket buffers\n"); 526 delivered = udp6stat[UDP6_STAT_IPACKETS] - 527 udp6stat[UDP6_STAT_HDROPS] - 528 udp6stat[UDP6_STAT_BADLEN] - 529 udp6stat[UDP6_STAT_BADSUM] - 530 udp6stat[UDP6_STAT_NOPORT] - 531 udp6stat[UDP6_STAT_NOPORTMCAST] - 532 udp6stat[UDP6_STAT_FULLSOCK]; 533 if (delivered || sflag <= 1) 534 printf("\t%llu delivered\n", (unsigned long long)delivered); 535 p(UDP6_STAT_OPACKETS, "\t%llu datagram%s output\n"); 536 #undef p 537 #undef p1 538 } 539 540 static const char *ip6nh[] = { 541 /*0*/ "hop by hop", 542 "ICMP", 543 "IGMP", 544 NULL, 545 "IP", 546 /*5*/ NULL, 547 "TCP", 548 NULL, 549 NULL, 550 NULL, 551 /*10*/ NULL, NULL, NULL, NULL, NULL, 552 /*15*/ NULL, 553 NULL, 554 "UDP", 555 NULL, 556 NULL, 557 /*20*/ NULL, 558 NULL, 559 "IDP", 560 NULL, 561 NULL, 562 /*25*/ NULL, 563 NULL, 564 NULL, 565 NULL, 566 NULL, 567 /*30*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 568 /*40*/ NULL, 569 "IP6", 570 NULL, 571 "routing", 572 "fragment", 573 /*45*/ NULL, NULL, NULL, NULL, NULL, 574 /*50*/ "ESP", 575 "AH", 576 NULL, 577 NULL, 578 NULL, 579 /*55*/ NULL, 580 NULL, 581 NULL, 582 "ICMP6", 583 "no next header", 584 /*60*/ "destination option", 585 NULL, 586 NULL, 587 NULL, 588 NULL, 589 /*65*/ NULL, NULL, NULL, NULL, NULL, 590 /*70*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 591 /*80*/ NULL, 592 NULL, 593 NULL, 594 NULL, 595 NULL, 596 NULL, 597 NULL, 598 NULL, 599 NULL, 600 "OSPF", 601 /*90*/ NULL, NULL, NULL, NULL, NULL, 602 /*95*/ NULL, 603 NULL, 604 "Ethernet", 605 NULL, 606 NULL, 607 /*100*/ NULL, 608 NULL, 609 NULL, 610 "PIM", 611 NULL, 612 /*105*/ NULL, NULL, NULL, NULL, NULL, 613 /*110*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 614 /*120*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 615 /*130*/ NULL, 616 NULL, 617 "SCTP", 618 NULL, 619 NULL, 620 /*135*/ NULL, NULL, NULL, NULL, NULL, 621 /*140*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 622 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 623 /*160*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 624 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 625 /*180*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 626 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 627 /*200*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 628 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 629 /*220*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 630 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 631 /*240*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 632 NULL, NULL, NULL, NULL, NULL, NULL, 633 }; 634 635 /* 636 * Dump IP6 statistics structure. 637 */ 638 void 639 ip6_stats(u_long off, const char *name) 640 { 641 uint64_t ip6stat[IP6_NSTATS]; 642 int first, i; 643 struct protoent *ep; 644 const char *n; 645 646 if (use_sysctl) { 647 size_t size = sizeof(ip6stat); 648 649 if (prog_sysctlbyname("net.inet6.ip6.stats", ip6stat, &size, 650 NULL, 0) == -1) 651 return; 652 } else { 653 warnx("%s stats not available via KVM.", name); 654 return; 655 } 656 printf("%s:\n", name); 657 658 #define p(f, m) if (ip6stat[f] || sflag <= 1) \ 659 printf(m, (unsigned long long)ip6stat[f], plural(ip6stat[f])) 660 #define p1(f, m) if (ip6stat[f] || sflag <= 1) \ 661 printf(m, (unsigned long long)ip6stat[f]) 662 663 p(IP6_STAT_TOTAL, "\t%llu total packet%s received\n"); 664 p1(IP6_STAT_TOOSMALL, "\t%llu with size smaller than minimum\n"); 665 p1(IP6_STAT_TOOSHORT, "\t%llu with data size < data length\n"); 666 p1(IP6_STAT_BADOPTIONS, "\t%llu with bad options\n"); 667 p1(IP6_STAT_BADVERS, "\t%llu with incorrect version number\n"); 668 p(IP6_STAT_FRAGMENTS, "\t%llu fragment%s received\n"); 669 p(IP6_STAT_FRAGDROPPED, 670 "\t%llu fragment%s dropped (dup or out of space)\n"); 671 p(IP6_STAT_FRAGTIMEOUT, "\t%llu fragment%s dropped after timeout\n"); 672 p(IP6_STAT_FRAGOVERFLOW, "\t%llu fragment%s that exceeded limit\n"); 673 p(IP6_STAT_REASSEMBLED, "\t%llu packet%s reassembled ok\n"); 674 p(IP6_STAT_DELIVERED, "\t%llu packet%s for this host\n"); 675 p(IP6_STAT_FORWARD, "\t%llu packet%s forwarded\n"); 676 p(IP6_STAT_FASTFORWARD, "\t%llu packet%s fast forwarded\n"); 677 p1(IP6_STAT_FASTFORWARDFLOWS, "\t%llu fast forward flows\n"); 678 p(IP6_STAT_CANTFORWARD, "\t%llu packet%s not forwardable\n"); 679 p(IP6_STAT_REDIRECTSENT, "\t%llu redirect%s sent\n"); 680 p(IP6_STAT_LOCALOUT, "\t%llu packet%s sent from this host\n"); 681 p(IP6_STAT_RAWOUT, "\t%llu packet%s sent with fabricated ip header\n"); 682 p(IP6_STAT_ODROPPED, 683 "\t%llu output packet%s dropped due to no bufs, etc.\n"); 684 p(IP6_STAT_NOROUTE, "\t%llu output packet%s discarded due to no route\n"); 685 p(IP6_STAT_FRAGMENTED, "\t%llu output datagram%s fragmented\n"); 686 p(IP6_STAT_OFRAGMENTS, "\t%llu fragment%s created\n"); 687 p(IP6_STAT_CANTFRAG, "\t%llu datagram%s that can't be fragmented\n"); 688 p(IP6_STAT_BADSCOPE, "\t%llu packet%s that violated scope rules\n"); 689 p(IP6_STAT_NOTMEMBER, "\t%llu multicast packet%s which we don't join\n"); 690 for (first = 1, i = 0; i < 256; i++) 691 if (ip6stat[IP6_STAT_NXTHIST + i] != 0) { 692 if (first) { 693 printf("\tInput packet histogram:\n"); 694 first = 0; 695 } 696 n = NULL; 697 if (ip6nh[i]) 698 n = ip6nh[i]; 699 else if ((ep = getprotobynumber(i)) != NULL) 700 n = ep->p_name; 701 if (n) 702 printf("\t\t%s: %llu\n", n, 703 (unsigned long long)ip6stat[IP6_STAT_NXTHIST + i]); 704 else 705 printf("\t\t#%d: %llu\n", i, 706 (unsigned long long)ip6stat[IP6_STAT_NXTHIST + i]); 707 } 708 printf("\tMbuf statistics:\n"); 709 p(IP6_STAT_M1, "\t\t%llu one mbuf%s\n"); 710 for (first = 1, i = 0; i < 32; i++) { 711 char ifbuf[IFNAMSIZ]; 712 if (ip6stat[IP6_STAT_M2M + i] != 0) { 713 if (first) { 714 printf("\t\ttwo or more mbuf:\n"); 715 first = 0; 716 } 717 printf("\t\t\t%s = %llu\n", 718 if_indextoname(i, ifbuf), 719 (unsigned long long)ip6stat[IP6_STAT_M2M + i]); 720 } 721 } 722 p(IP6_STAT_MEXT1, "\t\t%llu one ext mbuf%s\n"); 723 p(IP6_STAT_MEXT2M, "\t\t%llu two or more ext mbuf%s\n"); 724 p(IP6_STAT_EXTHDRTOOLONG, 725 "\t%llu packet%s whose headers are not continuous\n"); 726 p(IP6_STAT_NOGIF, "\t%llu tunneling packet%s that can't find gif\n"); 727 p(IP6_STAT_TOOMANYHDR, 728 "\t%llu packet%s discarded due to too many headers\n"); 729 730 /* for debugging source address selection */ 731 #define PRINT_SCOPESTAT(s,i) do {\ 732 switch(i) { /* XXX hardcoding in each case */\ 733 case 1:\ 734 p(s, "\t\t%llu node-local%s\n");\ 735 break;\ 736 case 2:\ 737 p(s, "\t\t%llu link-local%s\n");\ 738 break;\ 739 case 5:\ 740 p(s, "\t\t%llu site-local%s\n");\ 741 break;\ 742 case 14:\ 743 p(s, "\t\t%llu global%s\n");\ 744 break;\ 745 default:\ 746 printf("\t\t%llu addresses scope=%x\n",\ 747 (unsigned long long)ip6stat[s], i);\ 748 }\ 749 } while(/*CONSTCOND*/0); 750 751 p(IP6_STAT_SOURCES_NONE, 752 "\t%llu failure%s of source address selection\n"); 753 for (first = 1, i = 0; i < 16; i++) { 754 if (ip6stat[IP6_STAT_SOURCES_SAMEIF + i]) { 755 if (first) { 756 printf("\tsource addresses on an outgoing I/F\n"); 757 first = 0; 758 } 759 PRINT_SCOPESTAT(IP6_STAT_SOURCES_SAMEIF + i, i); 760 } 761 } 762 for (first = 1, i = 0; i < 16; i++) { 763 if (ip6stat[IP6_STAT_SOURCES_OTHERIF + i]) { 764 if (first) { 765 printf("\tsource addresses on a non-outgoing I/F\n"); 766 first = 0; 767 } 768 PRINT_SCOPESTAT(IP6_STAT_SOURCES_OTHERIF + i, i); 769 } 770 } 771 for (first = 1, i = 0; i < 16; i++) { 772 if (ip6stat[IP6_STAT_SOURCES_SAMESCOPE + i]) { 773 if (first) { 774 printf("\tsource addresses of same scope\n"); 775 first = 0; 776 } 777 PRINT_SCOPESTAT(IP6_STAT_SOURCES_SAMESCOPE + i, i); 778 } 779 } 780 for (first = 1, i = 0; i < 16; i++) { 781 if (ip6stat[IP6_STAT_SOURCES_OTHERSCOPE + i]) { 782 if (first) { 783 printf("\tsource addresses of a different scope\n"); 784 first = 0; 785 } 786 PRINT_SCOPESTAT(IP6_STAT_SOURCES_OTHERSCOPE + i, i); 787 } 788 } 789 for (first = 1, i = 0; i < 16; i++) { 790 if (ip6stat[IP6_STAT_SOURCES_DEPRECATED + i]) { 791 if (first) { 792 printf("\tdeprecated source addresses\n"); 793 first = 0; 794 } 795 PRINT_SCOPESTAT(IP6_STAT_SOURCES_DEPRECATED + i, i); 796 } 797 } 798 799 p1(IP6_STAT_FORWARD_CACHEHIT, "\t%llu forward cache hit\n"); 800 p1(IP6_STAT_FORWARD_CACHEMISS, "\t%llu forward cache miss\n"); 801 p(IP6_STAT_PFILDROP_IN, "\t%llu input packet%s dropped by pfil\n"); 802 p(IP6_STAT_PFILDROP_OUT, "\t%llu output packet%s dropped by pfil\n"); 803 #undef p 804 #undef p1 805 } 806 807 /* 808 * Dump IPv6 per-interface statistics based on RFC 2465. 809 */ 810 void 811 ip6_ifstats(const char *ifname) 812 { 813 struct in6_ifreq ifr; 814 int s; 815 #define p(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \ 816 printf(m, (unsigned long long)ifr.ifr_ifru.ifru_stat.f, \ 817 plural(ifr.ifr_ifru.ifru_stat.f)) 818 #define p_5(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \ 819 printf(m, (unsigned long long)ip6stat.f) 820 821 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 822 perror("Warning: socket(AF_INET6)"); 823 return; 824 } 825 826 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 827 printf("ip6 on %s:\n", ifname); 828 829 if (ioctl(s, SIOCGIFSTAT_IN6, (char *)&ifr) < 0) { 830 perror("Warning: ioctl(SIOCGIFSTAT_IN6)"); 831 goto end; 832 } 833 834 p(ifs6_in_receive, "\t%llu total input datagram%s\n"); 835 p(ifs6_in_hdrerr, "\t%llu datagram%s with invalid header received\n"); 836 p(ifs6_in_toobig, "\t%llu datagram%s exceeded MTU received\n"); 837 p(ifs6_in_noroute, "\t%llu datagram%s with no route received\n"); 838 p(ifs6_in_addrerr, "\t%llu datagram%s with invalid dst received\n"); 839 p(ifs6_in_truncated, "\t%llu truncated datagram%s received\n"); 840 p(ifs6_in_protounknown, "\t%llu datagram%s with unknown proto received\n"); 841 p(ifs6_in_discard, "\t%llu input datagram%s discarded\n"); 842 p(ifs6_in_deliver, 843 "\t%llu datagram%s delivered to an upper layer protocol\n"); 844 p(ifs6_out_forward, "\t%llu datagram%s forwarded to this interface\n"); 845 p(ifs6_out_request, 846 "\t%llu datagram%s sent from an upper layer protocol\n"); 847 p(ifs6_out_discard, "\t%llu total discarded output datagram%s\n"); 848 p(ifs6_out_fragok, "\t%llu output datagram%s fragmented\n"); 849 p(ifs6_out_fragfail, "\t%llu output datagram%s failed on fragment\n"); 850 p(ifs6_out_fragcreat, "\t%llu output datagram%s succeeded on fragment\n"); 851 p(ifs6_reass_reqd, "\t%llu incoming datagram%s fragmented\n"); 852 p(ifs6_reass_ok, "\t%llu datagram%s reassembled\n"); 853 p(ifs6_reass_fail, "\t%llu datagram%s failed on reassembling\n"); 854 p(ifs6_in_mcast, "\t%llu multicast datagram%s received\n"); 855 p(ifs6_out_mcast, "\t%llu multicast datagram%s sent\n"); 856 857 end: 858 close(s); 859 860 #undef p 861 #undef p_5 862 } 863 864 static const char *icmp6names[256] = { 865 "#0", 866 "unreach", 867 "packet too big", 868 "time exceed", 869 "parameter problem", 870 "#5", 871 "#6", 872 "#7", 873 "#8", 874 "#9", 875 "#10", 876 "#11", 877 "#12", 878 "#13", 879 "#14", 880 "#15", 881 "#16", 882 "#17", 883 "#18", 884 "#19", 885 "#20", 886 "#21", 887 "#22", 888 "#23", 889 "#24", 890 "#25", 891 "#26", 892 "#27", 893 "#28", 894 "#29", 895 "#30", 896 "#31", 897 "#32", 898 "#33", 899 "#34", 900 "#35", 901 "#36", 902 "#37", 903 "#38", 904 "#39", 905 "#40", 906 "#41", 907 "#42", 908 "#43", 909 "#44", 910 "#45", 911 "#46", 912 "#47", 913 "#48", 914 "#49", 915 "#50", 916 "#51", 917 "#52", 918 "#53", 919 "#54", 920 "#55", 921 "#56", 922 "#57", 923 "#58", 924 "#59", 925 "#60", 926 "#61", 927 "#62", 928 "#63", 929 "#64", 930 "#65", 931 "#66", 932 "#67", 933 "#68", 934 "#69", 935 "#70", 936 "#71", 937 "#72", 938 "#73", 939 "#74", 940 "#75", 941 "#76", 942 "#77", 943 "#78", 944 "#79", 945 "#80", 946 "#81", 947 "#82", 948 "#83", 949 "#84", 950 "#85", 951 "#86", 952 "#87", 953 "#88", 954 "#89", 955 "#80", 956 "#91", 957 "#92", 958 "#93", 959 "#94", 960 "#95", 961 "#96", 962 "#97", 963 "#98", 964 "#99", 965 "#100", 966 "#101", 967 "#102", 968 "#103", 969 "#104", 970 "#105", 971 "#106", 972 "#107", 973 "#108", 974 "#109", 975 "#110", 976 "#111", 977 "#112", 978 "#113", 979 "#114", 980 "#115", 981 "#116", 982 "#117", 983 "#118", 984 "#119", 985 "#120", 986 "#121", 987 "#122", 988 "#123", 989 "#124", 990 "#125", 991 "#126", 992 "#127", 993 "echo", 994 "echo reply", 995 "multicast listener query", 996 "multicast listener report", 997 "multicast listener done", 998 "router solicitation", 999 "router advertisement", 1000 "neighbor solicitation", 1001 "neighbor advertisement", 1002 "redirect", 1003 "router renumbering", 1004 "node information request", 1005 "node information reply", 1006 "#141", 1007 "#142", 1008 "multicast listener report (v2)", 1009 "home agent discovery request", 1010 "home agent discovery reply", 1011 "mobile prefix solicitation", 1012 "mobile prefix advertisement", 1013 "#148", 1014 "#149", 1015 "#150", 1016 "multicast router advertisement", 1017 "multicast router solicitation", 1018 "multicast router termination", 1019 "#154", 1020 "#155", 1021 "#156", 1022 "#157", 1023 "#158", 1024 "#159", 1025 "#160", 1026 "#161", 1027 "#162", 1028 "#163", 1029 "#164", 1030 "#165", 1031 "#166", 1032 "#167", 1033 "#168", 1034 "#169", 1035 "#170", 1036 "#171", 1037 "#172", 1038 "#173", 1039 "#174", 1040 "#175", 1041 "#176", 1042 "#177", 1043 "#178", 1044 "#179", 1045 "#180", 1046 "#181", 1047 "#182", 1048 "#183", 1049 "#184", 1050 "#185", 1051 "#186", 1052 "#187", 1053 "#188", 1054 "#189", 1055 "#180", 1056 "#191", 1057 "#192", 1058 "#193", 1059 "#194", 1060 "#195", 1061 "#196", 1062 "#197", 1063 "#198", 1064 "#199", 1065 "#200", 1066 "#201", 1067 "#202", 1068 "#203", 1069 "#204", 1070 "#205", 1071 "#206", 1072 "#207", 1073 "#208", 1074 "#209", 1075 "#210", 1076 "#211", 1077 "#212", 1078 "#213", 1079 "#214", 1080 "#215", 1081 "#216", 1082 "#217", 1083 "#218", 1084 "#219", 1085 "#220", 1086 "#221", 1087 "#222", 1088 "#223", 1089 "#224", 1090 "#225", 1091 "#226", 1092 "#227", 1093 "#228", 1094 "#229", 1095 "#230", 1096 "#231", 1097 "#232", 1098 "#233", 1099 "#234", 1100 "#235", 1101 "#236", 1102 "#237", 1103 "#238", 1104 "#239", 1105 "#240", 1106 "#241", 1107 "#242", 1108 "#243", 1109 "#244", 1110 "#245", 1111 "#246", 1112 "#247", 1113 "#248", 1114 "#249", 1115 "#250", 1116 "#251", 1117 "#252", 1118 "#253", 1119 "#254", 1120 "#255", 1121 }; 1122 1123 /* 1124 * Dump ICMPv6 statistics. 1125 */ 1126 void 1127 icmp6_stats(u_long off, const char *name) 1128 { 1129 uint64_t icmp6stat[ICMP6_NSTATS]; 1130 int i, first; 1131 1132 if (use_sysctl) { 1133 size_t size = sizeof(icmp6stat); 1134 1135 if (prog_sysctlbyname("net.inet6.icmp6.stats", icmp6stat, &size, 1136 NULL, 0) == -1) 1137 return; 1138 } else { 1139 warnx("%s stats not available via KVM.", name); 1140 return; 1141 } 1142 1143 printf("%s:\n", name); 1144 1145 #define p(f, m) if (icmp6stat[f] || sflag <= 1) \ 1146 printf(m, (unsigned long long)icmp6stat[f], plural(icmp6stat[f])) 1147 #define p_oerr(f, m) if (icmp6stat[ICMP6_STAT_OUTERRHIST + f] || sflag <= 1) \ 1148 printf(m, (unsigned long long)icmp6stat[ICMP6_STAT_OUTERRHIST + f]) 1149 1150 p(ICMP6_STAT_ERROR, "\t%llu call%s to icmp6_error\n"); 1151 p(ICMP6_STAT_CANTERROR, 1152 "\t%llu error%s not generated because old message was icmp6 or so\n"); 1153 p(ICMP6_STAT_TOOFREQ, 1154 "\t%llu error%s not generated because of rate limitation\n"); 1155 for (first = 1, i = 0; i < 256; i++) 1156 if (icmp6stat[ICMP6_STAT_OUTHIST + i] != 0) { 1157 if (first) { 1158 printf("\tOutput packet histogram:\n"); 1159 first = 0; 1160 } 1161 printf("\t\t%s: %llu\n", icmp6names[i], 1162 (unsigned long long)icmp6stat[ICMP6_STAT_OUTHIST + i]); 1163 } 1164 p(ICMP6_STAT_BADCODE, "\t%llu message%s with bad code fields\n"); 1165 p(ICMP6_STAT_TOOSHORT, "\t%llu message%s < minimum length\n"); 1166 p(ICMP6_STAT_CHECKSUM, "\t%llu bad checksum%s\n"); 1167 p(ICMP6_STAT_BADLEN, "\t%llu message%s with bad length\n"); 1168 for (first = 1, i = 0; i < ICMP6_MAXTYPE; i++) 1169 if (icmp6stat[ICMP6_STAT_INHIST + i] != 0) { 1170 if (first) { 1171 printf("\tInput packet histogram:\n"); 1172 first = 0; 1173 } 1174 printf("\t\t%s: %llu\n", icmp6names[i], 1175 (unsigned long long)icmp6stat[ICMP6_STAT_INHIST + i]); 1176 } 1177 printf("\tHistogram of error messages to be generated:\n"); 1178 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_NOROUTE, "\t\t%llu no route\n"); 1179 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_ADMIN, "\t\t%llu administratively prohibited\n"); 1180 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_BEYONDSCOPE, "\t\t%llu beyond scope\n"); 1181 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_ADDR, "\t\t%llu address unreachable\n"); 1182 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_NOPORT, "\t\t%llu port unreachable\n"); 1183 p_oerr(ICMP6_ERRSTAT_PACKET_TOO_BIG, "\t\t%llu packet too big\n"); 1184 p_oerr(ICMP6_ERRSTAT_TIME_EXCEED_TRANSIT, "\t\t%llu time exceed transit\n"); 1185 p_oerr(ICMP6_ERRSTAT_TIME_EXCEED_REASSEMBLY, "\t\t%llu time exceed reassembly\n"); 1186 p_oerr(ICMP6_ERRSTAT_PARAMPROB_HEADER, "\t\t%llu erroneous header field\n"); 1187 p_oerr(ICMP6_ERRSTAT_PARAMPROB_NEXTHEADER, "\t\t%llu unrecognized next header\n"); 1188 p_oerr(ICMP6_ERRSTAT_PARAMPROB_OPTION, "\t\t%llu unrecognized option\n"); 1189 p_oerr(ICMP6_ERRSTAT_REDIRECT, "\t\t%llu redirect\n"); 1190 p_oerr(ICMP6_ERRSTAT_UNKNOWN, "\t\t%llu unknown\n"); 1191 1192 p(ICMP6_STAT_REFLECT, "\t%llu message response%s generated\n"); 1193 p(ICMP6_STAT_ND_TOOMANYOPT, "\t%llu message%s with too many ND options\n"); 1194 p(ICMP6_STAT_ND_BADOPT, "\t%llu message%s with bad ND options\n"); 1195 p(ICMP6_STAT_BADNS, "\t%llu bad neighbor solicitation message%s\n"); 1196 p(ICMP6_STAT_BADNA, "\t%llu bad neighbor advertisement message%s\n"); 1197 p(ICMP6_STAT_BADRS, "\t%llu bad router solicitation message%s\n"); 1198 p(ICMP6_STAT_BADRA, "\t%llu bad router advertisement message%s\n"); 1199 p(ICMP6_STAT_DROPPED_RAROUTE, "\t%llu router advertisement route%s dropped\n"); 1200 p(ICMP6_STAT_BADREDIRECT, "\t%llu bad redirect message%s\n"); 1201 p(ICMP6_STAT_PMTUCHG, "\t%llu path MTU change%s\n"); 1202 #undef p 1203 #undef p_oerr 1204 } 1205 1206 /* 1207 * Dump ICMPv6 per-interface statistics based on RFC 2466. 1208 */ 1209 void 1210 icmp6_ifstats(const char *ifname) 1211 { 1212 struct in6_ifreq ifr; 1213 int s; 1214 #define p(f, m) if (ifr.ifr_ifru.ifru_icmp6stat.f || sflag <= 1) \ 1215 printf(m, (unsigned long long)ifr.ifr_ifru.ifru_icmp6stat.f, \ 1216 plural(ifr.ifr_ifru.ifru_icmp6stat.f)) 1217 1218 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 1219 perror("Warning: socket(AF_INET6)"); 1220 return; 1221 } 1222 1223 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 1224 printf("icmp6 on %s:\n", ifname); 1225 1226 if (ioctl(s, SIOCGIFSTAT_ICMP6, (char *)&ifr) < 0) { 1227 perror("Warning: ioctl(SIOCGIFSTAT_ICMP6)"); 1228 goto end; 1229 } 1230 1231 p(ifs6_in_msg, "\t%llu total input message%s\n"); 1232 p(ifs6_in_error, "\t%llu total input error message%s\n"); 1233 p(ifs6_in_dstunreach, "\t%llu input destination unreachable error%s\n"); 1234 p(ifs6_in_adminprohib, "\t%llu input administratively prohibited error%s\n"); 1235 p(ifs6_in_timeexceed, "\t%llu input time exceeded error%s\n"); 1236 p(ifs6_in_paramprob, "\t%llu input parameter problem error%s\n"); 1237 p(ifs6_in_pkttoobig, "\t%llu input packet too big error%s\n"); 1238 p(ifs6_in_echo, "\t%llu input echo request%s\n"); 1239 p(ifs6_in_echoreply, "\t%llu input echo reply%s\n"); 1240 p(ifs6_in_routersolicit, "\t%llu input router solicitation%s\n"); 1241 p(ifs6_in_routeradvert, "\t%llu input router advertisement%s\n"); 1242 p(ifs6_in_neighborsolicit, "\t%llu input neighbor solicitation%s\n"); 1243 p(ifs6_in_neighboradvert, "\t%llu input neighbor advertisement%s\n"); 1244 p(ifs6_in_redirect, "\t%llu input redirect%s\n"); 1245 p(ifs6_in_mldquery, "\t%llu input MLD query%s\n"); 1246 p(ifs6_in_mldreport, "\t%llu input MLD report%s\n"); 1247 p(ifs6_in_mlddone, "\t%llu input MLD done%s\n"); 1248 1249 p(ifs6_out_msg, "\t%llu total output message%s\n"); 1250 p(ifs6_out_error, "\t%llu total output error message%s\n"); 1251 p(ifs6_out_dstunreach, "\t%llu output destination unreachable error%s\n"); 1252 p(ifs6_out_adminprohib, "\t%llu output administratively prohibited error%s\n"); 1253 p(ifs6_out_timeexceed, "\t%llu output time exceeded error%s\n"); 1254 p(ifs6_out_paramprob, "\t%llu output parameter problem error%s\n"); 1255 p(ifs6_out_pkttoobig, "\t%llu output packet too big error%s\n"); 1256 p(ifs6_out_echo, "\t%llu output echo request%s\n"); 1257 p(ifs6_out_echoreply, "\t%llu output echo reply%s\n"); 1258 p(ifs6_out_routersolicit, "\t%llu output router solicitation%s\n"); 1259 p(ifs6_out_routeradvert, "\t%llu output router advertisement%s\n"); 1260 p(ifs6_out_neighborsolicit, "\t%llu output neighbor solicitation%s\n"); 1261 p(ifs6_out_neighboradvert, "\t%llu output neighbor advertisement%s\n"); 1262 p(ifs6_out_redirect, "\t%llu output redirect%s\n"); 1263 p(ifs6_out_mldquery, "\t%llu output MLD query%s\n"); 1264 p(ifs6_out_mldreport, "\t%llu output MLD report%s\n"); 1265 p(ifs6_out_mlddone, "\t%llu output MLD done%s\n"); 1266 1267 end: 1268 close(s); 1269 #undef p 1270 } 1271 1272 /* 1273 * Dump PIM statistics structure. 1274 */ 1275 void 1276 pim6_stats(u_long off, const char *name) 1277 { 1278 uint64_t pim6stat[PIM6_NSTATS]; 1279 1280 if (use_sysctl) { 1281 size_t size = sizeof(pim6stat); 1282 1283 if (prog_sysctlbyname("net.inet6.pim6.stats", pim6stat, &size, 1284 NULL, 0) == -1) 1285 return; 1286 } else { 1287 warnx("%s stats not available via KVM.", name); 1288 return; 1289 } 1290 printf("%s:\n", name); 1291 1292 #define p(f, m) if (pim6stat[f] || sflag <= 1) \ 1293 printf(m, (unsigned long long)pim6stat[f], plural(pim6stat[f])) 1294 p(PIM6_STAT_RCV_TOTAL, "\t%llu message%s received\n"); 1295 p(PIM6_STAT_RCV_TOOSHORT, "\t%llu message%s received with too few bytes\n"); 1296 p(PIM6_STAT_RCV_BADSUM, "\t%llu message%s received with bad checksum\n"); 1297 p(PIM6_STAT_RCV_BADVERSION, "\t%llu message%s received with bad version\n"); 1298 p(PIM6_STAT_RCV_REGISTERS, "\t%llu register%s received\n"); 1299 p(PIM6_STAT_RCV_BADREGISTERS, "\t%llu bad register%s received\n"); 1300 p(PIM6_STAT_SND_REGISTERS, "\t%llu register%s sent\n"); 1301 #undef p 1302 } 1303 1304 /* 1305 * Dump raw ip6 statistics structure. 1306 */ 1307 void 1308 rip6_stats(u_long off, const char *name) 1309 { 1310 uint64_t rip6stat[RIP6_NSTATS]; 1311 u_quad_t delivered; 1312 1313 if (use_sysctl) { 1314 size_t size = sizeof(rip6stat); 1315 1316 if (prog_sysctlbyname("net.inet6.raw6.stats", rip6stat, &size, 1317 NULL, 0) == -1) 1318 return; 1319 } else { 1320 warnx("%s stats not available via KVM.", name); 1321 return; 1322 } 1323 printf("%s:\n", name); 1324 1325 #define p(f, m) if (rip6stat[f] || sflag <= 1) \ 1326 printf(m, (unsigned long long)rip6stat[f], plural(rip6stat[f])) 1327 p(RIP6_STAT_IPACKETS, "\t%llu message%s received\n"); 1328 p(RIP6_STAT_ISUM, "\t%llu checksum calculation%s on inbound\n"); 1329 p(RIP6_STAT_BADSUM, "\t%llu message%s with bad checksum\n"); 1330 p(RIP6_STAT_NOSOCK, "\t%llu message%s dropped due to no socket\n"); 1331 p(RIP6_STAT_NOSOCKMCAST, 1332 "\t%llu multicast message%s dropped due to no socket\n"); 1333 p(RIP6_STAT_FULLSOCK, 1334 "\t%llu message%s dropped due to full socket buffers\n"); 1335 delivered = rip6stat[RIP6_STAT_IPACKETS] - 1336 rip6stat[RIP6_STAT_BADSUM] - 1337 rip6stat[RIP6_STAT_NOSOCK] - 1338 rip6stat[RIP6_STAT_NOSOCKMCAST] - 1339 rip6stat[RIP6_STAT_FULLSOCK]; 1340 if (delivered || sflag <= 1) 1341 printf("\t%llu delivered\n", (unsigned long long)delivered); 1342 p(RIP6_STAT_OPACKETS, "\t%llu datagram%s output\n"); 1343 #undef p 1344 } 1345 1346 /* 1347 * Pretty print an Internet address (net address + port). 1348 * Take numeric_addr and numeric_port into consideration. 1349 */ 1350 void 1351 inet6print(const struct in6_addr *in6, int port, const char *proto) 1352 { 1353 #define GETSERVBYPORT6(port, proto, ret)\ 1354 do {\ 1355 if (strcmp((proto), "tcp6") == 0)\ 1356 (ret) = getservbyport((int)(port), "tcp");\ 1357 else if (strcmp((proto), "udp6") == 0)\ 1358 (ret) = getservbyport((int)(port), "udp");\ 1359 else\ 1360 (ret) = getservbyport((int)(port), (proto));\ 1361 } while (0) 1362 struct servent *sp = 0; 1363 char line[80], *cp; 1364 int lwidth; 1365 1366 lwidth = Aflag ? 12 : 16; 1367 if (vflag && lwidth < (int)strlen(inet6name(in6))) 1368 lwidth = strlen(inet6name(in6)); 1369 snprintf(line, sizeof(line), "%.*s.", lwidth, inet6name(in6)); 1370 cp = strchr(line, '\0'); 1371 if (!numeric_port && port) 1372 GETSERVBYPORT6(port, proto, sp); 1373 if (sp || port == 0) 1374 snprintf(cp, sizeof(line) - (cp - line), 1375 "%s", sp ? sp->s_name : "*"); 1376 else 1377 snprintf(cp, sizeof(line) - (cp - line), 1378 "%d", ntohs((u_short)port)); 1379 lwidth = Aflag ? 18 : 22; 1380 if (vflag && lwidth < (int)strlen(line)) 1381 lwidth = strlen(line); 1382 printf(" %-*.*s", lwidth, lwidth, line); 1383 } 1384 1385 /* 1386 * Construct an Internet address representation. 1387 * If the numeric_addr has been supplied, give 1388 * numeric value, otherwise try for symbolic name. 1389 */ 1390 1391 char * 1392 inet6name(const struct in6_addr *in6p) 1393 { 1394 char *cp; 1395 static char line[NI_MAXHOST]; 1396 struct hostent *hp; 1397 static char domain[MAXHOSTNAMELEN + 1]; 1398 static int first = 1; 1399 char hbuf[NI_MAXHOST]; 1400 struct sockaddr_in6 sin6; 1401 const int niflag = NI_NUMERICHOST; 1402 1403 if (first && !numeric_addr) { 1404 first = 0; 1405 if (gethostname(domain, MAXHOSTNAMELEN) == 0 && 1406 (cp = strchr(domain, '.'))) 1407 (void) strlcpy(domain, cp + 1, sizeof(domain)); 1408 else 1409 domain[0] = 0; 1410 } 1411 cp = 0; 1412 if (!numeric_addr && !IN6_IS_ADDR_UNSPECIFIED(in6p)) { 1413 hp = gethostbyaddr((const char *)in6p, sizeof(*in6p), AF_INET6); 1414 if (hp) { 1415 if ((cp = strchr(hp->h_name, '.')) && 1416 !strcmp(cp + 1, domain)) 1417 *cp = 0; 1418 cp = hp->h_name; 1419 } 1420 } 1421 if (IN6_IS_ADDR_UNSPECIFIED(in6p)) 1422 strlcpy(line, "*", sizeof(line)); 1423 else if (cp) 1424 strlcpy(line, cp, sizeof(line)); 1425 else { 1426 memset(&sin6, 0, sizeof(sin6)); 1427 sin6.sin6_len = sizeof(sin6); 1428 sin6.sin6_family = AF_INET6; 1429 sin6.sin6_addr = *in6p; 1430 inet6_getscopeid(&sin6, INET6_IS_ADDR_LINKLOCAL| 1431 INET6_IS_ADDR_MC_LINKLOCAL); 1432 if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, 1433 hbuf, sizeof(hbuf), NULL, 0, niflag) != 0) 1434 strlcpy(hbuf, "?", sizeof(hbuf)); 1435 strlcpy(line, hbuf, sizeof(line)); 1436 } 1437 return (line); 1438 } 1439 1440 /* 1441 * Dump the contents of a TCP6 PCB. 1442 */ 1443 void 1444 tcp6_dump(u_long off, const char *name, u_long pcbaddr) 1445 { 1446 callout_impl_t *ci; 1447 int i, hardticks; 1448 struct kinfo_pcb *pcblist; 1449 #ifdef TCP6 1450 #define mypcb tcp6cb 1451 #else 1452 #define mypcb tcpcb 1453 #endif 1454 size_t j, len; 1455 1456 if (use_sysctl) 1457 pcblist = getpcblist_sysctl(name, &len); 1458 else 1459 pcblist = getpcblist_kmem(off, name, &len); 1460 1461 for (j = 0; j < len; j++) 1462 if (pcblist[j].ki_ppcbaddr == pcbaddr) 1463 break; 1464 free(pcblist); 1465 1466 if (j == len) 1467 errx(1, "0x%lx is not a valid pcb address", pcbaddr); 1468 1469 kread(pcbaddr, (char *)&mypcb, sizeof(mypcb)); 1470 hardticks = get_hardticks(); 1471 1472 printf("TCP Protocol Control Block at 0x%08lx:\n\n", pcbaddr); 1473 printf("Timers:\n"); 1474 for (i = 0; i < TCP6T_NTIMERS; i++) { 1475 char buf[128]; 1476 ci = (callout_impl_t *)&tcpcb.t_timer[i]; 1477 snprintb(buf, sizeof(buf), CALLOUT_FMT, ci->c_flags); 1478 printf("\t%s\t%s", tcptimers[i], buf); 1479 if (ci->c_flags & CALLOUT_PENDING) 1480 printf("\t%d\n", ci->c_time - hardticks); 1481 else 1482 printf("\n"); 1483 } 1484 printf("\n\n"); 1485 1486 if (mypcb.t_state < 0 || mypcb.t_state >= TCP6_NSTATES) 1487 printf("State: %d", mypcb.t_state); 1488 else 1489 printf("State: %s", tcp6states[mypcb.t_state]); 1490 printf(", flags 0x%x, in6pcb 0x%lx\n\n", mypcb.t_flags, 1491 (u_long)mypcb.t_in6pcb); 1492 1493 printf("rxtshift %d, rxtcur %d, dupacks %d\n", mypcb.t_rxtshift, 1494 mypcb.t_rxtcur, mypcb.t_dupacks); 1495 #ifdef TCP6 1496 printf("peermaxseg %u, maxseg %u, force %d\n\n", mypcb.t_peermaxseg, 1497 mypcb.t_maxseg, mypcb.t_force); 1498 #else 1499 printf("peermss %u, ourmss %u, segsz %u, segqlen %u\n\n", 1500 tcpcb.t_peermss, tcpcb.t_ourmss, tcpcb.t_segsz, tcpcb.t_segqlen); 1501 #endif 1502 1503 printf("snd_una %u, snd_nxt %u, snd_up %u\n", 1504 mypcb.snd_una, mypcb.snd_nxt, mypcb.snd_up); 1505 printf("snd_wl1 %u, snd_wl2 %u, iss %u, snd_wnd %llu\n\n", 1506 mypcb.snd_wl1, mypcb.snd_wl2, mypcb.iss, 1507 (unsigned long long)mypcb.snd_wnd); 1508 1509 printf("rcv_wnd %llu, rcv_nxt %u, rcv_up %u, irs %u\n\n", 1510 (unsigned long long)mypcb.rcv_wnd, mypcb.rcv_nxt, 1511 mypcb.rcv_up, mypcb.irs); 1512 1513 printf("rcv_adv %u, snd_max %u, snd_cwnd %llu, snd_ssthresh %llu\n", 1514 mypcb.rcv_adv, mypcb.snd_max, (unsigned long long)mypcb.snd_cwnd, 1515 (unsigned long long)mypcb.snd_ssthresh); 1516 1517 #ifdef TCP6 1518 printf("idle %d, rtt %d, " mypcb.t_idle, mypcb.t_rtt); 1519 #else 1520 printf("rcvtime %u, rtttime %u, ", tcpcb.t_rcvtime, tcpcb.t_rtttime); 1521 #endif 1522 1523 printf("rtseq %u, srtt %d, rttvar %d, rttmin %d, " 1524 "max_sndwnd %llu\n\n", mypcb.t_rtseq, 1525 mypcb.t_srtt, mypcb.t_rttvar, mypcb.t_rttmin, 1526 (unsigned long long)mypcb.max_sndwnd); 1527 1528 printf("oobflags %d, iobc %d, softerror %d\n\n", mypcb.t_oobflags, 1529 mypcb.t_iobc, mypcb.t_softerror); 1530 1531 printf("snd_scale %d, rcv_scale %d, req_r_scale %d, req_s_scale %d\n", 1532 mypcb.snd_scale, mypcb.rcv_scale, mypcb.request_r_scale, 1533 mypcb.requested_s_scale); 1534 printf("ts_recent %u, ts_regent_age %d, last_ack_sent %u\n", 1535 mypcb.ts_recent, mypcb.ts_recent_age, mypcb.last_ack_sent); 1536 } 1537 1538 #endif /*INET6*/ 1539
Indexes created Sat Sep 27 22:09:54 GMT 2025