inet6.c revision 1.65
1 /* $NetBSD: inet6.c,v 1.65 2013/10/19 15:56:06 christos 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 1.65 2013/10/19 15:56:06 christos Exp $"); 68 #endif 69 #endif /* not lint */ 70 71 #include <sys/param.h> 72 #include <sys/socket.h> 73 #include <sys/socketvar.h> 74 #include <sys/ioctl.h> 75 #include <sys/mbuf.h> 76 #include <sys/protosw.h> 77 #include <sys/sysctl.h> 78 79 #include <net/route.h> 80 #include <net/if.h> 81 #include <netinet/in.h> 82 #include <netinet/ip6.h> 83 #include <netinet/icmp6.h> 84 #include <netinet/in_systm.h> 85 #ifndef TCP6 86 #include <netinet/ip.h> 87 #include <netinet/ip_var.h> 88 #endif 89 #include <netinet6/ip6_var.h> 90 #include <netinet6/in6_pcb.h> 91 #include <netinet6/in6_var.h> 92 #ifdef TCP6 93 #include <netinet6/tcp6.h> 94 #include <netinet6/tcp6_seq.h> 95 #define TCP6STATES 96 #include <netinet6/tcp6_fsm.h> 97 #define TCP6TIMERS 98 #include <netinet6/tcp6_timer.h> 99 #include <netinet6/tcp6_var.h> 100 #include <netinet6/tcp6_debug.h> 101 #else 102 #include <netinet/tcp.h> 103 #include <netinet/tcpip.h> 104 #include <netinet/tcp_seq.h> 105 /*#define TCPSTATES*/ 106 #include <netinet/tcp_fsm.h> 107 extern const char * const tcpstates[]; 108 /*#define TCPTIMERS*/ 109 #include <netinet/tcp_timer.h> 110 #include <netinet/tcp_var.h> 111 #include <netinet/tcp_debug.h> 112 #endif /*TCP6*/ 113 #include <netinet6/udp6.h> 114 #include <netinet6/udp6_var.h> 115 #include <netinet6/pim6_var.h> 116 #include <netinet6/raw_ip6.h> 117 #include <netinet/tcp_vtw.h> 118 119 #include <arpa/inet.h> 120 #if 0 121 #include "gethostbyname2.h" 122 #endif 123 #include <netdb.h> 124 125 #include <err.h> 126 #include <errno.h> 127 #include <kvm.h> 128 #include <stdio.h> 129 #include <stdlib.h> 130 #include <string.h> 131 #include <unistd.h> 132 #include "netstat.h" 133 #include "vtw.h" 134 #include "prog_ops.h" 135 136 #ifdef INET6 137 138 struct in6pcb in6pcb; 139 #ifdef TCP6 140 struct tcp6cb tcp6cb; 141 #else 142 struct tcpcb tcpcb; 143 #endif 144 struct socket sockb; 145 146 char *inet6name(const struct in6_addr *); 147 void inet6print(const struct in6_addr *, int, const char *); 148 void print_vtw_v6(const vtw_t *); 149 150 /* 151 * Print a summary of connections related to an Internet 152 * protocol. For TCP, also give state of connection. 153 * Listening processes (aflag) are suppressed unless the 154 * -a (all) flag is specified. 155 */ 156 static int width; 157 static int compact; 158 159 /* VTW-related variables. */ 160 static struct timeval now; 161 162 static void 163 ip6protoprhdr(void) 164 { 165 166 printf("Active Internet6 connections"); 167 168 if (aflag) 169 printf(" (including servers)"); 170 putchar('\n'); 171 172 if (Aflag) { 173 printf("%-8.8s ", "PCB"); 174 width = 18; 175 } 176 printf( 177 Vflag ? "%-5.5s %-6.6s %-6.6s %*.*s %*.*s %-13.13s Expires\n" 178 : "%-5.5s %-6.6s %-6.6s %*.*s %*.*s %s\n", 179 "Proto", "Recv-Q", "Send-Q", 180 -width, width, "Local Address", 181 -width, width, "Foreign Address", "(state)"); 182 } 183 184 static void 185 ip6protopr0(intptr_t ppcb, u_long rcv_sb_cc, u_long snd_sb_cc, 186 const struct in6_addr *laddr, u_int16_t lport, 187 const struct in6_addr *faddr, u_int16_t fport, 188 short t_state, const char *name, const struct timeval *expires) 189 { 190 static const char *shorttcpstates[] = { 191 "CLOSED", "LISTEN", "SYNSEN", "SYSRCV", 192 "ESTABL", "CLWAIT", "FWAIT1", "CLOSNG", 193 "LASTAK", "FWAIT2", "TMWAIT", 194 }; 195 int istcp; 196 197 istcp = strcmp(name, "tcp6") == 0; 198 if (Aflag) 199 printf("%8" PRIxPTR " ", ppcb); 200 201 printf("%-5.5s %6ld %6ld%s", name, rcv_sb_cc, snd_sb_cc, 202 compact ? "" : " "); 203 204 inet6print(laddr, (int)lport, name); 205 inet6print(faddr, (int)fport, name); 206 if (istcp) { 207 #ifdef TCP6 208 if (t_state < 0 || t_state >= TCP6_NSTATES) 209 printf(" %d", t_state); 210 else 211 printf(" %s", tcp6states[t_state]); 212 #else 213 if (t_state < 0 || t_state >= TCP_NSTATES) 214 printf(" %d", t_state); 215 else 216 printf(" %s", compact ? shorttcpstates[t_state] : 217 tcpstates[t_state]); 218 #endif 219 } 220 if (Vflag && expires != NULL) { 221 if (expires->tv_sec == 0 && expires->tv_usec == -1) 222 printf(" reclaimed"); 223 else { 224 struct timeval delta; 225 226 timersub(expires, &now, &delta); 227 printf(" %.3fms", 228 delta.tv_sec * 1000.0 + delta.tv_usec / 1000.0); 229 } 230 } 231 putchar('\n'); 232 } 233 234 static void 235 dbg_printf(const char *fmt, ...) 236 { 237 return; 238 } 239 240 void 241 print_vtw_v6(const vtw_t *vtw) 242 { 243 const vtw_v6_t *v6 = (const vtw_v6_t *)vtw; 244 struct timeval delta; 245 char buf[2][128]; 246 static const struct timeval zero = {.tv_sec = 0, .tv_usec = 0}; 247 248 inet_ntop(AF_INET6, &v6->laddr, buf[0], sizeof(buf[0])); 249 inet_ntop(AF_INET6, &v6->faddr, buf[1], sizeof(buf[1])); 250 251 timersub(&vtw->expire, &now, &delta); 252 253 if (vtw->expire.tv_sec == 0 && vtw->expire.tv_usec == -1) { 254 dbg_printf("%15.15s:%d %15.15s:%d reclaimed\n" 255 ,buf[0], ntohs(v6->lport) 256 ,buf[1], ntohs(v6->fport)); 257 if (!(Vflag && vflag)) 258 return; 259 } else if (vtw->expire.tv_sec == 0) 260 return; 261 else if (timercmp(&delta, &zero, <) && !(Vflag && vflag)) { 262 dbg_printf("%15.15s:%d %15.15s:%d expired\n" 263 ,buf[0], ntohs(v6->lport) 264 ,buf[1], ntohs(v6->fport)); 265 return; 266 } else { 267 dbg_printf("%15.15s:%d %15.15s:%d expires in %.3fms\n" 268 ,buf[0], ntohs(v6->lport) 269 ,buf[1], ntohs(v6->fport) 270 ,delta.tv_sec * 1000.0 + delta.tv_usec / 1000.0); 271 } 272 ip6protopr0(0, 0, 0, 273 &v6->laddr, v6->lport, 274 &v6->faddr, v6->fport, 275 TCPS_TIME_WAIT, "tcp6", &vtw->expire); 276 } 277 278 279 static struct kinfo_pcb * 280 getpcblist_kmem(u_long off, const char *name, size_t *len) { 281 282 struct inpcbtable table; 283 struct in6pcb *head, *prev, *next; 284 int istcp = strcmp(name, "tcp6") == 0; 285 struct kinfo_pcb *pcblist; 286 size_t size = 100, i; 287 struct sockaddr_in6 sin6; 288 289 if (off == 0) { 290 *len = 0; 291 return NULL; 292 } 293 kread(off, (char *)&table, sizeof (table)); 294 head = prev = 295 (struct in6pcb *)&((struct inpcbtable *)off)->inpt_queue.cqh_first; 296 next = (struct in6pcb *)table.inpt_queue.cqh_first; 297 298 if ((pcblist = malloc(size)) == NULL) 299 err(1, "malloc"); 300 301 i = 0; 302 while (next != head) { 303 kread((u_long)next, (char *)&in6pcb, sizeof in6pcb); 304 if ((struct in6pcb *)in6pcb.in6p_queue.cqe_prev != prev) { 305 warnx("bad pcb"); 306 break; 307 } 308 prev = next; 309 next = (struct in6pcb *)in6pcb.in6p_queue.cqe_next; 310 311 if (in6pcb.in6p_af != AF_INET6) 312 continue; 313 314 kread((u_long)in6pcb.in6p_socket, (char *)&sockb, 315 sizeof (sockb)); 316 if (istcp) { 317 #ifdef TCP6 318 kread((u_long)in6pcb.in6p_ppcb, 319 (char *)&tcp6cb, sizeof (tcp6cb)); 320 #else 321 kread((u_long)in6pcb.in6p_ppcb, 322 (char *)&tcpcb, sizeof (tcpcb)); 323 #endif 324 } 325 pcblist[i].ki_ppcbaddr = 326 istcp ? (uintptr_t) in6pcb.in6p_ppcb : (uintptr_t) prev; 327 pcblist[i].ki_rcvq = (uint64_t)sockb.so_rcv.sb_cc; 328 pcblist[i].ki_sndq = (uint64_t)sockb.so_snd.sb_cc; 329 sin6.sin6_addr = in6pcb.in6p_laddr; 330 sin6.sin6_port = in6pcb.in6p_lport; 331 memcpy(&pcblist[i].ki_s, &sin6, sizeof(sin6)); 332 sin6.sin6_addr = in6pcb.in6p_faddr; 333 sin6.sin6_port = in6pcb.in6p_fport; 334 memcpy(&pcblist[i].ki_d, &sin6, sizeof(sin6)); 335 pcblist[i].ki_tstate = tcpcb.t_state; 336 if (i++ == size) { 337 struct kinfo_pcb *n = realloc(pcblist, size += 100); 338 if (n == NULL) 339 err(1, "realloc"); 340 pcblist = n; 341 } 342 } 343 *len = i; 344 return pcblist; 345 } 346 347 void 348 ip6protopr(u_long off, const char *name) 349 { 350 struct kinfo_pcb *pcblist; 351 size_t i, len; 352 static int first = 1; 353 354 compact = 0; 355 if (Aflag) { 356 if (!numeric_addr) 357 width = 18; 358 else { 359 width = 21; 360 compact = 1; 361 } 362 } else 363 width = 22; 364 365 if (use_sysctl) 366 pcblist = getpcblist_sysctl(name, &len); 367 else 368 pcblist = getpcblist_kmem(off, name, &len); 369 370 for (i = 0; i < len; i++) { 371 struct sockaddr_in6 src, dst; 372 373 memcpy(&src, &pcblist[i].ki_s, sizeof(src)); 374 memcpy(&dst, &pcblist[i].ki_d, sizeof(dst)); 375 376 if (!aflag && IN6_IS_ADDR_UNSPECIFIED(&dst.sin6_addr)) 377 continue; 378 379 if (first) { 380 ip6protoprhdr(); 381 first = 0; 382 } 383 384 ip6protopr0((intptr_t) pcblist[i].ki_ppcbaddr, 385 pcblist[i].ki_rcvq, pcblist[i].ki_sndq, 386 &src.sin6_addr, src.sin6_port, 387 &dst.sin6_addr, dst.sin6_port, 388 pcblist[i].ki_tstate, name, NULL); 389 } 390 391 free(pcblist); 392 393 if (strcmp(name, "tcp6") == 0) { 394 struct timeval t; 395 timebase(&t); 396 gettimeofday(&now, NULL); 397 timersub(&now, &t, &now); 398 show_vtw_v6(print_vtw_v6); 399 } 400 } 401 402 #ifdef TCP6 403 /* 404 * Dump TCP6 statistics structure. 405 */ 406 void 407 tcp6_stats(u_long off, const char *name) 408 { 409 struct tcp6stat tcp6stat; 410 411 if (use_sysctl) { 412 size_t size = sizeof(tcp6stat); 413 414 if (sysctlbyname("net.inet6.tcp6.stats", &tcp6stat, &size, 415 NULL, 0) == -1) 416 return; 417 } else { 418 warnx("%s stats not available via KVM.", name); 419 return; 420 } 421 422 printf ("%s:\n", name); 423 424 #define p(f, m) if (tcp6stat.f || sflag <= 1) \ 425 printf(m, tcp6stat.f, plural(tcp6stat.f)) 426 #define p2(f1, f2, m) if (tcp6stat.f1 || tcp6stat.f2 || sflag <= 1) \ 427 printf(m, tcp6stat.f1, plural(tcp6stat.f1), tcp6stat.f2, plural(tcp6stat.f2)) 428 #define p3(f, m) if (tcp6stat.f || sflag <= 1) \ 429 printf(m, tcp6stat.f, plurales(tcp6stat.f)) 430 431 p(tcp6s_sndtotal, "\t%ld packet%s sent\n"); 432 p2(tcp6s_sndpack,tcp6s_sndbyte, 433 "\t\t%ld data packet%s (%ld byte%s)\n"); 434 p2(tcp6s_sndrexmitpack, tcp6s_sndrexmitbyte, 435 "\t\t%ld data packet%s (%ld byte%s) retransmitted\n"); 436 p2(tcp6s_sndacks, tcp6s_delack, 437 "\t\t%ld ack-only packet%s (%ld packet%s delayed)\n"); 438 p(tcp6s_sndurg, "\t\t%ld URG only packet%s\n"); 439 p(tcp6s_sndprobe, "\t\t%ld window probe packet%s\n"); 440 p(tcp6s_sndwinup, "\t\t%ld window update packet%s\n"); 441 p(tcp6s_sndctrl, "\t\t%ld control packet%s\n"); 442 p(tcp6s_rcvtotal, "\t%ld packet%s received\n"); 443 p2(tcp6s_rcvackpack, tcp6s_rcvackbyte, "\t\t%ld ack%s (for %ld byte%s)\n"); 444 p(tcp6s_rcvdupack, "\t\t%ld duplicate ack%s\n"); 445 p(tcp6s_rcvacktoomuch, "\t\t%ld ack%s for unsent data\n"); 446 p2(tcp6s_rcvpack, tcp6s_rcvbyte, 447 "\t\t%ld packet%s (%ld byte%s) received in-sequence\n"); 448 p2(tcp6s_rcvduppack, tcp6s_rcvdupbyte, 449 "\t\t%ld completely duplicate packet%s (%ld byte%s)\n"); 450 p(tcp6s_pawsdrop, "\t\t%ld old duplicate packet%s\n"); 451 p2(tcp6s_rcvpartduppack, tcp6s_rcvpartdupbyte, 452 "\t\t%ld packet%s with some dup. data (%ld byte%s duped)\n"); 453 p2(tcp6s_rcvoopack, tcp6s_rcvoobyte, 454 "\t\t%ld out-of-order packet%s (%ld byte%s)\n"); 455 p2(tcp6s_rcvpackafterwin, tcp6s_rcvbyteafterwin, 456 "\t\t%ld packet%s (%ld byte%s) of data after window\n"); 457 p(tcp6s_rcvwinprobe, "\t\t%ld window probe%s\n"); 458 p(tcp6s_rcvwinupd, "\t\t%ld window update packet%s\n"); 459 p(tcp6s_rcvafterclose, "\t\t%ld packet%s received after close\n"); 460 p(tcp6s_rcvbadsum, "\t\t%ld discarded for bad checksum%s\n"); 461 p(tcp6s_rcvbadoff, "\t\t%ld discarded for bad header offset field%s\n"); 462 p(tcp6s_rcvshort, "\t\t%ld discarded because packet%s too short\n"); 463 p(tcp6s_connattempt, "\t%ld connection request%s\n"); 464 p(tcp6s_accepts, "\t%ld connection accept%s\n"); 465 p(tcp6s_badsyn, "\t%ld bad connection attempt%s\n"); 466 p(tcp6s_connects, "\t%ld connection%s established (including accepts)\n"); 467 p2(tcp6s_closed, tcp6s_drops, 468 "\t%ld connection%s closed (including %ld drop%s)\n"); 469 p(tcp6s_conndrops, "\t%ld embryonic connection%s dropped\n"); 470 p2(tcp6s_rttupdated, tcp6s_segstimed, 471 "\t%ld segment%s updated rtt (of %ld attempt%s)\n"); 472 p(tcp6s_rexmttimeo, "\t%ld retransmit timeout%s\n"); 473 p(tcp6s_timeoutdrop, "\t\t%ld connection%s dropped by rexmit timeout\n"); 474 p(tcp6s_persisttimeo, "\t%ld persist timeout%s\n"); 475 p(tcp6s_persistdrop, "\t%ld connection%s timed out in persist\n"); 476 p(tcp6s_keeptimeo, "\t%ld keepalive timeout%s\n"); 477 p(tcp6s_keepprobe, "\t\t%ld keepalive probe%s sent\n"); 478 p(tcp6s_keepdrops, "\t\t%ld connection%s dropped by keepalive\n"); 479 p(tcp6s_predack, "\t%ld correct ACK header prediction%s\n"); 480 p(tcp6s_preddat, "\t%ld correct data packet header prediction%s\n"); 481 p3(tcp6s_pcbcachemiss, "\t%ld PCB cache miss%s\n"); 482 #undef p 483 #undef p2 484 #undef p3 485 } 486 #endif 487 488 /* 489 * Dump UDP6 statistics structure. 490 */ 491 void 492 udp6_stats(u_long off, const char *name) 493 { 494 uint64_t udp6stat[UDP6_NSTATS]; 495 u_quad_t delivered; 496 497 if (use_sysctl) { 498 size_t size = sizeof(udp6stat); 499 500 if (sysctlbyname("net.inet6.udp6.stats", udp6stat, &size, 501 NULL, 0) == -1) 502 return; 503 } else { 504 warnx("%s stats not available via KVM.", name); 505 return; 506 } 507 printf("%s:\n", name); 508 #define p(f, m) if (udp6stat[f] || sflag <= 1) \ 509 printf(m, (unsigned long long)udp6stat[f], plural(udp6stat[f])) 510 #define p1(f, m) if (udp6stat[f] || sflag <= 1) \ 511 printf(m, (unsigned long long)udp6stat[f]) 512 p(UDP6_STAT_IPACKETS, "\t%llu datagram%s received\n"); 513 p1(UDP6_STAT_HDROPS, "\t%llu with incomplete header\n"); 514 p1(UDP6_STAT_BADLEN, "\t%llu with bad data length field\n"); 515 p1(UDP6_STAT_BADSUM, "\t%llu with bad checksum\n"); 516 p1(UDP6_STAT_NOSUM, "\t%llu with no checksum\n"); 517 p1(UDP6_STAT_NOPORT, "\t%llu dropped due to no socket\n"); 518 p(UDP6_STAT_NOPORTMCAST, 519 "\t%llu multicast datagram%s dropped due to no socket\n"); 520 p1(UDP6_STAT_FULLSOCK, "\t%llu dropped due to full socket buffers\n"); 521 delivered = udp6stat[UDP6_STAT_IPACKETS] - 522 udp6stat[UDP6_STAT_HDROPS] - 523 udp6stat[UDP6_STAT_BADLEN] - 524 udp6stat[UDP6_STAT_BADSUM] - 525 udp6stat[UDP6_STAT_NOPORT] - 526 udp6stat[UDP6_STAT_NOPORTMCAST] - 527 udp6stat[UDP6_STAT_FULLSOCK]; 528 if (delivered || sflag <= 1) 529 printf("\t%llu delivered\n", (unsigned long long)delivered); 530 p(UDP6_STAT_OPACKETS, "\t%llu datagram%s output\n"); 531 #undef p 532 #undef p1 533 } 534 535 static const char *ip6nh[] = { 536 /*0*/ "hop by hop", 537 "ICMP", 538 "IGMP", 539 NULL, 540 "IP", 541 /*5*/ NULL, 542 "TCP", 543 NULL, 544 NULL, 545 NULL, 546 /*10*/ NULL, NULL, NULL, NULL, NULL, 547 /*15*/ NULL, 548 NULL, 549 "UDP", 550 NULL, 551 NULL, 552 /*20*/ NULL, 553 NULL, 554 "IDP", 555 NULL, 556 NULL, 557 /*25*/ NULL, 558 NULL, 559 NULL, 560 NULL, 561 NULL, 562 /*30*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 563 /*40*/ NULL, 564 "IP6", 565 NULL, 566 "routing", 567 "fragment", 568 /*45*/ NULL, NULL, NULL, NULL, NULL, 569 /*50*/ "ESP", 570 "AH", 571 NULL, 572 NULL, 573 NULL, 574 /*55*/ NULL, 575 NULL, 576 NULL, 577 "ICMP6", 578 "no next header", 579 /*60*/ "destination option", 580 NULL, 581 NULL, 582 NULL, 583 NULL, 584 /*65*/ NULL, NULL, NULL, NULL, NULL, 585 /*70*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 586 /*80*/ NULL, 587 NULL, 588 NULL, 589 NULL, 590 NULL, 591 NULL, 592 NULL, 593 NULL, 594 NULL, 595 "OSPF", 596 /*90*/ NULL, NULL, NULL, NULL, NULL, 597 /*95*/ NULL, 598 NULL, 599 "Ethernet", 600 NULL, 601 NULL, 602 /*100*/ NULL, 603 NULL, 604 NULL, 605 "PIM", 606 NULL, 607 /*105*/ NULL, NULL, NULL, NULL, NULL, 608 /*110*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 609 /*120*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 610 /*130*/ NULL, 611 NULL, 612 "SCTP", 613 NULL, 614 NULL, 615 /*135*/ NULL, NULL, NULL, NULL, NULL, 616 /*140*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 617 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 618 /*160*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 619 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 620 /*180*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 621 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 622 /*200*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 623 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 624 /*220*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 625 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 626 /*240*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 627 NULL, NULL, NULL, NULL, NULL, NULL, 628 }; 629 630 /* 631 * Dump IP6 statistics structure. 632 */ 633 void 634 ip6_stats(u_long off, const char *name) 635 { 636 uint64_t ip6stat[IP6_NSTATS]; 637 int first, i; 638 struct protoent *ep; 639 const char *n; 640 641 if (use_sysctl) { 642 size_t size = sizeof(ip6stat); 643 644 if (sysctlbyname("net.inet6.ip6.stats", ip6stat, &size, 645 NULL, 0) == -1) 646 return; 647 } else { 648 warnx("%s stats not available via KVM.", name); 649 return; 650 } 651 printf("%s:\n", name); 652 653 #define p(f, m) if (ip6stat[f] || sflag <= 1) \ 654 printf(m, (unsigned long long)ip6stat[f], plural(ip6stat[f])) 655 #define p1(f, m) if (ip6stat[f] || sflag <= 1) \ 656 printf(m, (unsigned long long)ip6stat[f]) 657 658 p(IP6_STAT_TOTAL, "\t%llu total packet%s received\n"); 659 p1(IP6_STAT_TOOSMALL, "\t%llu with size smaller than minimum\n"); 660 p1(IP6_STAT_TOOSHORT, "\t%llu with data size < data length\n"); 661 p1(IP6_STAT_BADOPTIONS, "\t%llu with bad options\n"); 662 p1(IP6_STAT_BADVERS, "\t%llu with incorrect version number\n"); 663 p(IP6_STAT_FRAGMENTS, "\t%llu fragment%s received\n"); 664 p(IP6_STAT_FRAGDROPPED, 665 "\t%llu fragment%s dropped (dup or out of space)\n"); 666 p(IP6_STAT_FRAGTIMEOUT, "\t%llu fragment%s dropped after timeout\n"); 667 p(IP6_STAT_FRAGOVERFLOW, "\t%llu fragment%s that exceeded limit\n"); 668 p(IP6_STAT_REASSEMBLED, "\t%llu packet%s reassembled ok\n"); 669 p(IP6_STAT_DELIVERED, "\t%llu packet%s for this host\n"); 670 p(IP6_STAT_FORWARD, "\t%llu packet%s forwarded\n"); 671 p(IP6_STAT_FASTFORWARD, "\t%llu packet%s fast forwarded\n"); 672 p1(IP6_STAT_FASTFORWARDFLOWS, "\t%llu fast forward flows\n"); 673 p(IP6_STAT_CANTFORWARD, "\t%llu packet%s not forwardable\n"); 674 p(IP6_STAT_REDIRECTSENT, "\t%llu redirect%s sent\n"); 675 p(IP6_STAT_LOCALOUT, "\t%llu packet%s sent from this host\n"); 676 p(IP6_STAT_RAWOUT, "\t%llu packet%s sent with fabricated ip header\n"); 677 p(IP6_STAT_ODROPPED, 678 "\t%llu output packet%s dropped due to no bufs, etc.\n"); 679 p(IP6_STAT_NOROUTE, "\t%llu output packet%s discarded due to no route\n"); 680 p(IP6_STAT_FRAGMENTED, "\t%llu output datagram%s fragmented\n"); 681 p(IP6_STAT_OFRAGMENTS, "\t%llu fragment%s created\n"); 682 p(IP6_STAT_CANTFRAG, "\t%llu datagram%s that can't be fragmented\n"); 683 p(IP6_STAT_BADSCOPE, "\t%llu packet%s that violated scope rules\n"); 684 p(IP6_STAT_NOTMEMBER, "\t%llu multicast packet%s which we don't join\n"); 685 for (first = 1, i = 0; i < 256; i++) 686 if (ip6stat[IP6_STAT_NXTHIST + i] != 0) { 687 if (first) { 688 printf("\tInput packet histogram:\n"); 689 first = 0; 690 } 691 n = NULL; 692 if (ip6nh[i]) 693 n = ip6nh[i]; 694 else if ((ep = getprotobynumber(i)) != NULL) 695 n = ep->p_name; 696 if (n) 697 printf("\t\t%s: %llu\n", n, 698 (unsigned long long)ip6stat[IP6_STAT_NXTHIST + i]); 699 else 700 printf("\t\t#%d: %llu\n", i, 701 (unsigned long long)ip6stat[IP6_STAT_NXTHIST + i]); 702 } 703 printf("\tMbuf statistics:\n"); 704 p(IP6_STAT_M1, "\t\t%llu one mbuf%s\n"); 705 for (first = 1, i = 0; i < 32; i++) { 706 char ifbuf[IFNAMSIZ]; 707 if (ip6stat[IP6_STAT_M2M + i] != 0) { 708 if (first) { 709 printf("\t\ttwo or more mbuf:\n"); 710 first = 0; 711 } 712 printf("\t\t\t%s = %llu\n", 713 if_indextoname(i, ifbuf), 714 (unsigned long long)ip6stat[IP6_STAT_M2M + i]); 715 } 716 } 717 p(IP6_STAT_MEXT1, "\t\t%llu one ext mbuf%s\n"); 718 p(IP6_STAT_MEXT2M, "\t\t%llu two or more ext mbuf%s\n"); 719 p(IP6_STAT_EXTHDRTOOLONG, 720 "\t%llu packet%s whose headers are not continuous\n"); 721 p(IP6_STAT_NOGIF, "\t%llu tunneling packet%s that can't find gif\n"); 722 p(IP6_STAT_TOOMANYHDR, 723 "\t%llu packet%s discarded due to too many headers\n"); 724 725 /* for debugging source address selection */ 726 #define PRINT_SCOPESTAT(s,i) do {\ 727 switch(i) { /* XXX hardcoding in each case */\ 728 case 1:\ 729 p(s, "\t\t%llu node-local%s\n");\ 730 break;\ 731 case 2:\ 732 p(s, "\t\t%llu link-local%s\n");\ 733 break;\ 734 case 5:\ 735 p(s, "\t\t%llu site-local%s\n");\ 736 break;\ 737 case 14:\ 738 p(s, "\t\t%llu global%s\n");\ 739 break;\ 740 default:\ 741 printf("\t\t%llu addresses scope=%x\n",\ 742 (unsigned long long)ip6stat[s], i);\ 743 }\ 744 } while(/*CONSTCOND*/0); 745 746 p(IP6_STAT_SOURCES_NONE, 747 "\t%llu failure%s of source address selection\n"); 748 for (first = 1, i = 0; i < 16; i++) { 749 if (ip6stat[IP6_STAT_SOURCES_SAMEIF + i]) { 750 if (first) { 751 printf("\tsource addresses on an outgoing I/F\n"); 752 first = 0; 753 } 754 PRINT_SCOPESTAT(IP6_STAT_SOURCES_SAMEIF + i, i); 755 } 756 } 757 for (first = 1, i = 0; i < 16; i++) { 758 if (ip6stat[IP6_STAT_SOURCES_OTHERIF + i]) { 759 if (first) { 760 printf("\tsource addresses on a non-outgoing I/F\n"); 761 first = 0; 762 } 763 PRINT_SCOPESTAT(IP6_STAT_SOURCES_OTHERIF + i, i); 764 } 765 } 766 for (first = 1, i = 0; i < 16; i++) { 767 if (ip6stat[IP6_STAT_SOURCES_SAMESCOPE + i]) { 768 if (first) { 769 printf("\tsource addresses of same scope\n"); 770 first = 0; 771 } 772 PRINT_SCOPESTAT(IP6_STAT_SOURCES_SAMESCOPE + i, i); 773 } 774 } 775 for (first = 1, i = 0; i < 16; i++) { 776 if (ip6stat[IP6_STAT_SOURCES_OTHERSCOPE + i]) { 777 if (first) { 778 printf("\tsource addresses of a different scope\n"); 779 first = 0; 780 } 781 PRINT_SCOPESTAT(IP6_STAT_SOURCES_OTHERSCOPE + i, i); 782 } 783 } 784 for (first = 1, i = 0; i < 16; i++) { 785 if (ip6stat[IP6_STAT_SOURCES_DEPRECATED + i]) { 786 if (first) { 787 printf("\tdeprecated source addresses\n"); 788 first = 0; 789 } 790 PRINT_SCOPESTAT(IP6_STAT_SOURCES_DEPRECATED + i, i); 791 } 792 } 793 794 p1(IP6_STAT_FORWARD_CACHEHIT, "\t%llu forward cache hit\n"); 795 p1(IP6_STAT_FORWARD_CACHEMISS, "\t%llu forward cache miss\n"); 796 #undef p 797 #undef p1 798 } 799 800 /* 801 * Dump IPv6 per-interface statistics based on RFC 2465. 802 */ 803 void 804 ip6_ifstats(const char *ifname) 805 { 806 struct in6_ifreq ifr; 807 int s; 808 #define p(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \ 809 printf(m, (unsigned long long)ifr.ifr_ifru.ifru_stat.f, \ 810 plural(ifr.ifr_ifru.ifru_stat.f)) 811 #define p_5(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \ 812 printf(m, (unsigned long long)ip6stat.f) 813 814 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 815 perror("Warning: socket(AF_INET6)"); 816 return; 817 } 818 819 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 820 printf("ip6 on %s:\n", ifname); 821 822 if (ioctl(s, SIOCGIFSTAT_IN6, (char *)&ifr) < 0) { 823 perror("Warning: ioctl(SIOCGIFSTAT_IN6)"); 824 goto end; 825 } 826 827 p(ifs6_in_receive, "\t%llu total input datagram%s\n"); 828 p(ifs6_in_hdrerr, "\t%llu datagram%s with invalid header received\n"); 829 p(ifs6_in_toobig, "\t%llu datagram%s exceeded MTU received\n"); 830 p(ifs6_in_noroute, "\t%llu datagram%s with no route received\n"); 831 p(ifs6_in_addrerr, "\t%llu datagram%s with invalid dst received\n"); 832 p(ifs6_in_truncated, "\t%llu truncated datagram%s received\n"); 833 p(ifs6_in_protounknown, "\t%llu datagram%s with unknown proto received\n"); 834 p(ifs6_in_discard, "\t%llu input datagram%s discarded\n"); 835 p(ifs6_in_deliver, 836 "\t%llu datagram%s delivered to an upper layer protocol\n"); 837 p(ifs6_out_forward, "\t%llu datagram%s forwarded to this interface\n"); 838 p(ifs6_out_request, 839 "\t%llu datagram%s sent from an upper layer protocol\n"); 840 p(ifs6_out_discard, "\t%llu total discarded output datagram%s\n"); 841 p(ifs6_out_fragok, "\t%llu output datagram%s fragmented\n"); 842 p(ifs6_out_fragfail, "\t%llu output datagram%s failed on fragment\n"); 843 p(ifs6_out_fragcreat, "\t%llu output datagram%s succeeded on fragment\n"); 844 p(ifs6_reass_reqd, "\t%llu incoming datagram%s fragmented\n"); 845 p(ifs6_reass_ok, "\t%llu datagram%s reassembled\n"); 846 p(ifs6_reass_fail, "\t%llu datagram%s failed on reassembling\n"); 847 p(ifs6_in_mcast, "\t%llu multicast datagram%s received\n"); 848 p(ifs6_out_mcast, "\t%llu multicast datagram%s sent\n"); 849 850 end: 851 close(s); 852 853 #undef p 854 #undef p_5 855 } 856 857 static const char *icmp6names[] = { 858 "#0", 859 "unreach", 860 "packet too big", 861 "time exceed", 862 "parameter problem", 863 "#5", 864 "#6", 865 "#7", 866 "#8", 867 "#9", 868 "#10", 869 "#11", 870 "#12", 871 "#13", 872 "#14", 873 "#15", 874 "#16", 875 "#17", 876 "#18", 877 "#19", 878 "#20", 879 "#21", 880 "#22", 881 "#23", 882 "#24", 883 "#25", 884 "#26", 885 "#27", 886 "#28", 887 "#29", 888 "#30", 889 "#31", 890 "#32", 891 "#33", 892 "#34", 893 "#35", 894 "#36", 895 "#37", 896 "#38", 897 "#39", 898 "#40", 899 "#41", 900 "#42", 901 "#43", 902 "#44", 903 "#45", 904 "#46", 905 "#47", 906 "#48", 907 "#49", 908 "#50", 909 "#51", 910 "#52", 911 "#53", 912 "#54", 913 "#55", 914 "#56", 915 "#57", 916 "#58", 917 "#59", 918 "#60", 919 "#61", 920 "#62", 921 "#63", 922 "#64", 923 "#65", 924 "#66", 925 "#67", 926 "#68", 927 "#69", 928 "#70", 929 "#71", 930 "#72", 931 "#73", 932 "#74", 933 "#75", 934 "#76", 935 "#77", 936 "#78", 937 "#79", 938 "#80", 939 "#81", 940 "#82", 941 "#83", 942 "#84", 943 "#85", 944 "#86", 945 "#87", 946 "#88", 947 "#89", 948 "#80", 949 "#91", 950 "#92", 951 "#93", 952 "#94", 953 "#95", 954 "#96", 955 "#97", 956 "#98", 957 "#99", 958 "#100", 959 "#101", 960 "#102", 961 "#103", 962 "#104", 963 "#105", 964 "#106", 965 "#107", 966 "#108", 967 "#109", 968 "#110", 969 "#111", 970 "#112", 971 "#113", 972 "#114", 973 "#115", 974 "#116", 975 "#117", 976 "#118", 977 "#119", 978 "#120", 979 "#121", 980 "#122", 981 "#123", 982 "#124", 983 "#125", 984 "#126", 985 "#127", 986 "echo", 987 "echo reply", 988 "multicast listener query", 989 "multicast listener report", 990 "multicast listener done", 991 "router solicitation", 992 "router advertisement", 993 "neighbor solicitation", 994 "neighbor advertisement", 995 "redirect", 996 "router renumbering", 997 "node information request", 998 "node information reply", 999 "#141", 1000 "#142", 1001 "#143", 1002 "#144", 1003 "#145", 1004 "#146", 1005 "#147", 1006 "#148", 1007 "#149", 1008 "#150", 1009 "#151", 1010 "#152", 1011 "#153", 1012 "#154", 1013 "#155", 1014 "#156", 1015 "#157", 1016 "#158", 1017 "#159", 1018 "#160", 1019 "#161", 1020 "#162", 1021 "#163", 1022 "#164", 1023 "#165", 1024 "#166", 1025 "#167", 1026 "#168", 1027 "#169", 1028 "#170", 1029 "#171", 1030 "#172", 1031 "#173", 1032 "#174", 1033 "#175", 1034 "#176", 1035 "#177", 1036 "#178", 1037 "#179", 1038 "#180", 1039 "#181", 1040 "#182", 1041 "#183", 1042 "#184", 1043 "#185", 1044 "#186", 1045 "#187", 1046 "#188", 1047 "#189", 1048 "#180", 1049 "#191", 1050 "#192", 1051 "#193", 1052 "#194", 1053 "#195", 1054 "#196", 1055 "#197", 1056 "#198", 1057 "#199", 1058 "#200", 1059 "#201", 1060 "#202", 1061 "#203", 1062 "#204", 1063 "#205", 1064 "#206", 1065 "#207", 1066 "#208", 1067 "#209", 1068 "#210", 1069 "#211", 1070 "#212", 1071 "#213", 1072 "#214", 1073 "#215", 1074 "#216", 1075 "#217", 1076 "#218", 1077 "#219", 1078 "#220", 1079 "#221", 1080 "#222", 1081 "#223", 1082 "#224", 1083 "#225", 1084 "#226", 1085 "#227", 1086 "#228", 1087 "#229", 1088 "#230", 1089 "#231", 1090 "#232", 1091 "#233", 1092 "#234", 1093 "#235", 1094 "#236", 1095 "#237", 1096 "#238", 1097 "#239", 1098 "#240", 1099 "#241", 1100 "#242", 1101 "#243", 1102 "#244", 1103 "#245", 1104 "#246", 1105 "#247", 1106 "#248", 1107 "#249", 1108 "#250", 1109 "#251", 1110 "#252", 1111 "#253", 1112 "#254", 1113 "#255", 1114 }; 1115 1116 /* 1117 * Dump ICMPv6 statistics. 1118 */ 1119 void 1120 icmp6_stats(u_long off, const char *name) 1121 { 1122 uint64_t icmp6stat[ICMP6_NSTATS]; 1123 int i, first; 1124 1125 if (use_sysctl) { 1126 size_t size = sizeof(icmp6stat); 1127 1128 if (sysctlbyname("net.inet6.icmp6.stats", icmp6stat, &size, 1129 NULL, 0) == -1) 1130 return; 1131 } else { 1132 warnx("%s stats not available via KVM.", name); 1133 return; 1134 } 1135 1136 printf("%s:\n", name); 1137 1138 #define p(f, m) if (icmp6stat[f] || sflag <= 1) \ 1139 printf(m, (unsigned long long)icmp6stat[f], plural(icmp6stat[f])) 1140 #define p_oerr(f, m) if (icmp6stat[ICMP6_STAT_OUTERRHIST + f] || sflag <= 1) \ 1141 printf(m, (unsigned long long)icmp6stat[ICMP6_STAT_OUTERRHIST + f]) 1142 1143 p(ICMP6_STAT_ERROR, "\t%llu call%s to icmp6_error\n"); 1144 p(ICMP6_STAT_CANTERROR, 1145 "\t%llu error%s not generated because old message was icmp6 or so\n"); 1146 p(ICMP6_STAT_TOOFREQ, 1147 "\t%llu error%s not generated because of rate limitation\n"); 1148 for (first = 1, i = 0; i < 256; i++) 1149 if (icmp6stat[ICMP6_STAT_OUTHIST + i] != 0) { 1150 if (first) { 1151 printf("\tOutput packet histogram:\n"); 1152 first = 0; 1153 } 1154 printf("\t\t%s: %llu\n", icmp6names[i], 1155 (unsigned long long)icmp6stat[ICMP6_STAT_OUTHIST + i]); 1156 } 1157 p(ICMP6_STAT_BADCODE, "\t%llu message%s with bad code fields\n"); 1158 p(ICMP6_STAT_TOOSHORT, "\t%llu message%s < minimum length\n"); 1159 p(ICMP6_STAT_CHECKSUM, "\t%llu bad checksum%s\n"); 1160 p(ICMP6_STAT_BADLEN, "\t%llu message%s with bad length\n"); 1161 for (first = 1, i = 0; i < ICMP6_MAXTYPE; i++) 1162 if (icmp6stat[ICMP6_STAT_INHIST + i] != 0) { 1163 if (first) { 1164 printf("\tInput packet histogram:\n"); 1165 first = 0; 1166 } 1167 printf("\t\t%s: %llu\n", icmp6names[i], 1168 (unsigned long long)icmp6stat[ICMP6_STAT_INHIST + i]); 1169 } 1170 printf("\tHistogram of error messages to be generated:\n"); 1171 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_NOROUTE, "\t\t%llu no route\n"); 1172 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_ADMIN, "\t\t%llu administratively prohibited\n"); 1173 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_BEYONDSCOPE, "\t\t%llu beyond scope\n"); 1174 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_ADDR, "\t\t%llu address unreachable\n"); 1175 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_NOPORT, "\t\t%llu port unreachable\n"); 1176 p_oerr(ICMP6_ERRSTAT_PACKET_TOO_BIG, "\t\t%llu packet too big\n"); 1177 p_oerr(ICMP6_ERRSTAT_TIME_EXCEED_TRANSIT, "\t\t%llu time exceed transit\n"); 1178 p_oerr(ICMP6_ERRSTAT_TIME_EXCEED_REASSEMBLY, "\t\t%llu time exceed reassembly\n"); 1179 p_oerr(ICMP6_ERRSTAT_PARAMPROB_HEADER, "\t\t%llu erroneous header field\n"); 1180 p_oerr(ICMP6_ERRSTAT_PARAMPROB_NEXTHEADER, "\t\t%llu unrecognized next header\n"); 1181 p_oerr(ICMP6_ERRSTAT_PARAMPROB_OPTION, "\t\t%llu unrecognized option\n"); 1182 p_oerr(ICMP6_ERRSTAT_REDIRECT, "\t\t%llu redirect\n"); 1183 p_oerr(ICMP6_ERRSTAT_UNKNOWN, "\t\t%llu unknown\n"); 1184 1185 p(ICMP6_STAT_REFLECT, "\t%llu message response%s generated\n"); 1186 p(ICMP6_STAT_ND_TOOMANYOPT, "\t%llu message%s with too many ND options\n"); 1187 p(ICMP6_STAT_ND_BADOPT, "\t%llu message%s with bad ND options\n"); 1188 p(ICMP6_STAT_BADNS, "\t%llu bad neighbor solicitation message%s\n"); 1189 p(ICMP6_STAT_BADNA, "\t%llu bad neighbor advertisement message%s\n"); 1190 p(ICMP6_STAT_BADRS, "\t%llu bad router solicitation message%s\n"); 1191 p(ICMP6_STAT_BADRA, "\t%llu bad router advertisement message%s\n"); 1192 p(ICMP6_STAT_DROPPED_RAROUTE, "\t%llu router advertisement route%s dropped\n"); 1193 p(ICMP6_STAT_BADREDIRECT, "\t%llu bad redirect message%s\n"); 1194 p(ICMP6_STAT_PMTUCHG, "\t%llu path MTU change%s\n"); 1195 #undef p 1196 #undef p_oerr 1197 } 1198 1199 /* 1200 * Dump ICMPv6 per-interface statistics based on RFC 2466. 1201 */ 1202 void 1203 icmp6_ifstats(const char *ifname) 1204 { 1205 struct in6_ifreq ifr; 1206 int s; 1207 #define p(f, m) if (ifr.ifr_ifru.ifru_icmp6stat.f || sflag <= 1) \ 1208 printf(m, (unsigned long long)ifr.ifr_ifru.ifru_icmp6stat.f, \ 1209 plural(ifr.ifr_ifru.ifru_icmp6stat.f)) 1210 1211 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 1212 perror("Warning: socket(AF_INET6)"); 1213 return; 1214 } 1215 1216 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 1217 printf("icmp6 on %s:\n", ifname); 1218 1219 if (ioctl(s, SIOCGIFSTAT_ICMP6, (char *)&ifr) < 0) { 1220 perror("Warning: ioctl(SIOCGIFSTAT_ICMP6)"); 1221 goto end; 1222 } 1223 1224 p(ifs6_in_msg, "\t%llu total input message%s\n"); 1225 p(ifs6_in_error, "\t%llu total input error message%s\n"); 1226 p(ifs6_in_dstunreach, "\t%llu input destination unreachable error%s\n"); 1227 p(ifs6_in_adminprohib, "\t%llu input administratively prohibited error%s\n"); 1228 p(ifs6_in_timeexceed, "\t%llu input time exceeded error%s\n"); 1229 p(ifs6_in_paramprob, "\t%llu input parameter problem error%s\n"); 1230 p(ifs6_in_pkttoobig, "\t%llu input packet too big error%s\n"); 1231 p(ifs6_in_echo, "\t%llu input echo request%s\n"); 1232 p(ifs6_in_echoreply, "\t%llu input echo reply%s\n"); 1233 p(ifs6_in_routersolicit, "\t%llu input router solicitation%s\n"); 1234 p(ifs6_in_routeradvert, "\t%llu input router advertisement%s\n"); 1235 p(ifs6_in_neighborsolicit, "\t%llu input neighbor solicitation%s\n"); 1236 p(ifs6_in_neighboradvert, "\t%llu input neighbor advertisement%s\n"); 1237 p(ifs6_in_redirect, "\t%llu input redirect%s\n"); 1238 p(ifs6_in_mldquery, "\t%llu input MLD query%s\n"); 1239 p(ifs6_in_mldreport, "\t%llu input MLD report%s\n"); 1240 p(ifs6_in_mlddone, "\t%llu input MLD done%s\n"); 1241 1242 p(ifs6_out_msg, "\t%llu total output message%s\n"); 1243 p(ifs6_out_error, "\t%llu total output error message%s\n"); 1244 p(ifs6_out_dstunreach, "\t%llu output destination unreachable error%s\n"); 1245 p(ifs6_out_adminprohib, "\t%llu output administratively prohibited error%s\n"); 1246 p(ifs6_out_timeexceed, "\t%llu output time exceeded error%s\n"); 1247 p(ifs6_out_paramprob, "\t%llu output parameter problem error%s\n"); 1248 p(ifs6_out_pkttoobig, "\t%llu output packet too big error%s\n"); 1249 p(ifs6_out_echo, "\t%llu output echo request%s\n"); 1250 p(ifs6_out_echoreply, "\t%llu output echo reply%s\n"); 1251 p(ifs6_out_routersolicit, "\t%llu output router solicitation%s\n"); 1252 p(ifs6_out_routeradvert, "\t%llu output router advertisement%s\n"); 1253 p(ifs6_out_neighborsolicit, "\t%llu output neighbor solicitation%s\n"); 1254 p(ifs6_out_neighboradvert, "\t%llu output neighbor advertisement%s\n"); 1255 p(ifs6_out_redirect, "\t%llu output redirect%s\n"); 1256 p(ifs6_out_mldquery, "\t%llu output MLD query%s\n"); 1257 p(ifs6_out_mldreport, "\t%llu output MLD report%s\n"); 1258 p(ifs6_out_mlddone, "\t%llu output MLD done%s\n"); 1259 1260 end: 1261 close(s); 1262 #undef p 1263 } 1264 1265 /* 1266 * Dump PIM statistics structure. 1267 */ 1268 void 1269 pim6_stats(u_long off, const char *name) 1270 { 1271 uint64_t pim6stat[PIM6_NSTATS]; 1272 1273 if (use_sysctl) { 1274 size_t size = sizeof(pim6stat); 1275 1276 if (sysctlbyname("net.inet6.pim6.stats", pim6stat, &size, 1277 NULL, 0) == -1) 1278 return; 1279 } else { 1280 warnx("%s stats not available via KVM.", name); 1281 return; 1282 } 1283 printf("%s:\n", name); 1284 1285 #define p(f, m) if (pim6stat[f] || sflag <= 1) \ 1286 printf(m, (unsigned long long)pim6stat[f], plural(pim6stat[f])) 1287 p(PIM6_STAT_RCV_TOTAL, "\t%llu message%s received\n"); 1288 p(PIM6_STAT_RCV_TOOSHORT, "\t%llu message%s received with too few bytes\n"); 1289 p(PIM6_STAT_RCV_BADSUM, "\t%llu message%s received with bad checksum\n"); 1290 p(PIM6_STAT_RCV_BADVERSION, "\t%llu message%s received with bad version\n"); 1291 p(PIM6_STAT_RCV_REGISTERS, "\t%llu register%s received\n"); 1292 p(PIM6_STAT_RCV_BADREGISTERS, "\t%llu bad register%s received\n"); 1293 p(PIM6_STAT_SND_REGISTERS, "\t%llu register%s sent\n"); 1294 #undef p 1295 } 1296 1297 /* 1298 * Dump raw ip6 statistics structure. 1299 */ 1300 void 1301 rip6_stats(u_long off, const char *name) 1302 { 1303 uint64_t rip6stat[RIP6_NSTATS]; 1304 u_quad_t delivered; 1305 1306 if (use_sysctl) { 1307 size_t size = sizeof(rip6stat); 1308 1309 if (sysctlbyname("net.inet6.raw6.stats", rip6stat, &size, 1310 NULL, 0) == -1) 1311 return; 1312 } else { 1313 warnx("%s stats not available via KVM.", name); 1314 return; 1315 } 1316 printf("%s:\n", name); 1317 1318 #define p(f, m) if (rip6stat[f] || sflag <= 1) \ 1319 printf(m, (unsigned long long)rip6stat[f], plural(rip6stat[f])) 1320 p(RIP6_STAT_IPACKETS, "\t%llu message%s received\n"); 1321 p(RIP6_STAT_ISUM, "\t%llu checksum calculation%s on inbound\n"); 1322 p(RIP6_STAT_BADSUM, "\t%llu message%s with bad checksum\n"); 1323 p(RIP6_STAT_NOSOCK, "\t%llu message%s dropped due to no socket\n"); 1324 p(RIP6_STAT_NOSOCKMCAST, 1325 "\t%llu multicast message%s dropped due to no socket\n"); 1326 p(RIP6_STAT_FULLSOCK, 1327 "\t%llu message%s dropped due to full socket buffers\n"); 1328 delivered = rip6stat[RIP6_STAT_IPACKETS] - 1329 rip6stat[RIP6_STAT_BADSUM] - 1330 rip6stat[RIP6_STAT_NOSOCK] - 1331 rip6stat[RIP6_STAT_NOSOCKMCAST] - 1332 rip6stat[RIP6_STAT_FULLSOCK]; 1333 if (delivered || sflag <= 1) 1334 printf("\t%llu delivered\n", (unsigned long long)delivered); 1335 p(RIP6_STAT_OPACKETS, "\t%llu datagram%s output\n"); 1336 #undef p 1337 } 1338 1339 /* 1340 * Pretty print an Internet address (net address + port). 1341 * Take numeric_addr and numeric_port into consideration. 1342 */ 1343 void 1344 inet6print(const struct in6_addr *in6, int port, const char *proto) 1345 { 1346 #define GETSERVBYPORT6(port, proto, ret)\ 1347 do {\ 1348 if (strcmp((proto), "tcp6") == 0)\ 1349 (ret) = getservbyport((int)(port), "tcp");\ 1350 else if (strcmp((proto), "udp6") == 0)\ 1351 (ret) = getservbyport((int)(port), "udp");\ 1352 else\ 1353 (ret) = getservbyport((int)(port), (proto));\ 1354 } while (0) 1355 struct servent *sp = 0; 1356 char line[80], *cp; 1357 int lwidth; 1358 1359 lwidth = Aflag ? 12 : 16; 1360 if (vflag && lwidth < (int)strlen(inet6name(in6))) 1361 lwidth = strlen(inet6name(in6)); 1362 snprintf(line, sizeof(line), "%.*s.", lwidth, inet6name(in6)); 1363 cp = strchr(line, '\0'); 1364 if (!numeric_port && port) 1365 GETSERVBYPORT6(port, proto, sp); 1366 if (sp || port == 0) 1367 snprintf(cp, sizeof(line) - (cp - line), 1368 "%s", sp ? sp->s_name : "*"); 1369 else 1370 snprintf(cp, sizeof(line) - (cp - line), 1371 "%d", ntohs((u_short)port)); 1372 lwidth = Aflag ? 18 : 22; 1373 if (vflag && lwidth < (int)strlen(line)) 1374 lwidth = strlen(line); 1375 printf(" %-*.*s", lwidth, lwidth, line); 1376 } 1377 1378 /* 1379 * Construct an Internet address representation. 1380 * If the numeric_addr has been supplied, give 1381 * numeric value, otherwise try for symbolic name. 1382 */ 1383 1384 char * 1385 inet6name(const struct in6_addr *in6p) 1386 { 1387 char *cp; 1388 static char line[NI_MAXHOST]; 1389 struct hostent *hp; 1390 static char domain[MAXHOSTNAMELEN + 1]; 1391 static int first = 1; 1392 char hbuf[NI_MAXHOST]; 1393 struct sockaddr_in6 sin6; 1394 const int niflag = NI_NUMERICHOST; 1395 1396 if (first && !numeric_addr) { 1397 first = 0; 1398 if (gethostname(domain, MAXHOSTNAMELEN) == 0 && 1399 (cp = strchr(domain, '.'))) 1400 (void) strlcpy(domain, cp + 1, sizeof(domain)); 1401 else 1402 domain[0] = 0; 1403 } 1404 cp = 0; 1405 if (!numeric_addr && !IN6_IS_ADDR_UNSPECIFIED(in6p)) { 1406 hp = gethostbyaddr((const char *)in6p, sizeof(*in6p), AF_INET6); 1407 if (hp) { 1408 if ((cp = strchr(hp->h_name, '.')) && 1409 !strcmp(cp + 1, domain)) 1410 *cp = 0; 1411 cp = hp->h_name; 1412 } 1413 } 1414 if (IN6_IS_ADDR_UNSPECIFIED(in6p)) 1415 strlcpy(line, "*", sizeof(line)); 1416 else if (cp) 1417 strlcpy(line, cp, sizeof(line)); 1418 else { 1419 memset(&sin6, 0, sizeof(sin6)); 1420 sin6.sin6_len = sizeof(sin6); 1421 sin6.sin6_family = AF_INET6; 1422 sin6.sin6_addr = *in6p; 1423 inet6_getscopeid(&sin6, INET6_IS_ADDR_LINKLOCAL| 1424 INET6_IS_ADDR_MC_LINKLOCAL); 1425 if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, 1426 hbuf, sizeof(hbuf), NULL, 0, niflag) != 0) 1427 strlcpy(hbuf, "?", sizeof(hbuf)); 1428 strlcpy(line, hbuf, sizeof(line)); 1429 } 1430 return (line); 1431 } 1432 1433 #ifdef TCP6 1434 /* 1435 * Dump the contents of a TCP6 PCB. 1436 */ 1437 void 1438 tcp6_dump(u_long pcbaddr) 1439 u_long pcbaddr; 1440 { 1441 struct tcp6cb tcp6cb; 1442 int i; 1443 struct kinfo_pcb *pcblist; 1444 size_t j, len; 1445 1446 if (use_sysctl) 1447 pcblist = getpcblist_sysctl(name, &len); 1448 else 1449 pcblist = getpcblist_kmem(off, name, &len); 1450 1451 for (j = 0; j < len; j++) 1452 if (pcblist[j].ki_ppcbaddr == pcbaddr) 1453 break; 1454 free(pcblist); 1455 1456 if (j == len) 1457 errx(1, "0x%lx is not a valid pcb address", pcbaddr); 1458 1459 kread(pcbaddr, (char *)&tcp6cb, sizeof(tcp6cb)); 1460 1461 printf("TCP Protocol Control Block at 0x%08lx:\n\n", pcbaddr); 1462 1463 printf("Timers:\n"); 1464 for (i = 0; i < TCP6T_NTIMERS; i++) 1465 printf("\t%s: %u", tcp6timers[i], tcp6cb.t_timer[i]); 1466 printf("\n\n"); 1467 1468 if (tcp6cb.t_state < 0 || tcp6cb.t_state >= TCP6_NSTATES) 1469 printf("State: %d", tcp6cb.t_state); 1470 else 1471 printf("State: %s", tcp6states[tcp6cb.t_state]); 1472 printf(", flags 0x%x, in6pcb 0x%lx\n\n", tcp6cb.t_flags, 1473 (u_long)tcp6cb.t_in6pcb); 1474 1475 printf("rxtshift %d, rxtcur %d, dupacks %d\n", tcp6cb.t_rxtshift, 1476 tcp6cb.t_rxtcur, tcp6cb.t_dupacks); 1477 printf("peermaxseg %u, maxseg %u, force %d\n\n", tcp6cb.t_peermaxseg, 1478 tcp6cb.t_maxseg, tcp6cb.t_force); 1479 1480 printf("snd_una %u, snd_nxt %u, snd_up %u\n", 1481 tcp6cb.snd_una, tcp6cb.snd_nxt, tcp6cb.snd_up); 1482 printf("snd_wl1 %u, snd_wl2 %u, iss %u, snd_wnd %llu\n\n", 1483 tcp6cb.snd_wl1, tcp6cb.snd_wl2, tcp6cb.iss, 1484 (unsigned long long)tcp6cb.snd_wnd); 1485 1486 printf("rcv_wnd %llu, rcv_nxt %u, rcv_up %u, irs %u\n\n", 1487 (unsigned long long)cp6cb.rcv_wnd, tcp6cb.rcv_nxt, 1488 tcp6cb.rcv_up, tcp6cb.irs); 1489 1490 printf("rcv_adv %u, snd_max %u, snd_cwnd %llu, snd_ssthresh %llu\n", 1491 tcp6cb.rcv_adv, tcp6cb.snd_max, (unsigned long long)tcp6cb.snd_cwnd, 1492 (unsigned long long)tcp6cb.snd_ssthresh); 1493 1494 printf("idle %d, rtt %d, rtseq %u, srtt %d, rttvar %d, rttmin %d, " 1495 "max_sndwnd %llu\n\n", tcp6cb.t_idle, tcp6cb.t_rtt, tcp6cb.t_rtseq, 1496 tcp6cb.t_srtt, tcp6cb.t_rttvar, tcp6cb.t_rttmin, 1497 (unsigned long long)tcp6cb.max_sndwnd); 1498 1499 printf("oobflags %d, iobc %d, softerror %d\n\n", tcp6cb.t_oobflags, 1500 tcp6cb.t_iobc, tcp6cb.t_softerror); 1501 1502 printf("snd_scale %d, rcv_scale %d, req_r_scale %d, req_s_scale %d\n", 1503 tcp6cb.snd_scale, tcp6cb.rcv_scale, tcp6cb.request_r_scale, 1504 tcp6cb.requested_s_scale); 1505 printf("ts_recent %u, ts_regent_age %d, last_ack_sent %u\n", 1506 tcp6cb.ts_recent, tcp6cb.ts_recent_age, tcp6cb.last_ack_sent); 1507 } 1508 #endif 1509 1510 #endif /*INET6*/ 1511
Indexes created Wed Sep 24 14:09:57 GMT 2025