inet6.c revision 1.55
1 /* $NetBSD: inet6.c,v 1.55 2011/05/03 23:36:26 dyoung 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 1.55 2011/05/03 23:36:26 dyoung 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( "%-5.5s %-6.6s %-6.6s %*.*s %*.*s %-13.13s%s\n", 177 "Proto", "Recv-Q", "Send-Q", 178 -width, width, "Local Address", 179 -width, width, "Foreign Address", 180 "(state)", Vflag ? " Expires" : ""); 181 } 182 183 static void 184 ip6protopr0(intptr_t ppcb, u_long rcv_sb_cc, u_long snd_sb_cc, 185 const struct in6_addr *laddr, u_int16_t lport, 186 const struct in6_addr *faddr, u_int16_t fport, 187 short t_state, const char *name, const struct timeval *expires) 188 { 189 static const char *shorttcpstates[] = { 190 "CLOSED", "LISTEN", "SYNSEN", "SYSRCV", 191 "ESTABL", "CLWAIT", "FWAIT1", "CLOSNG", 192 "LASTAK", "FWAIT2", "TMWAIT", 193 }; 194 int istcp; 195 196 istcp = strcmp(name, "tcp6") == 0; 197 if (Aflag) 198 printf("%8" PRIxPTR " ", ppcb); 199 200 printf("%-5.5s %6ld %6ld%s", name, rcv_sb_cc, snd_sb_cc, 201 compact ? "" : " "); 202 203 inet6print(laddr, (int)lport, name); 204 inet6print(faddr, (int)fport, name); 205 if (istcp) { 206 #ifdef TCP6 207 if (t_state < 0 || t_state >= TCP6_NSTATES) 208 printf(" %d", t_state); 209 else 210 printf(" %s", tcp6states[t_state]); 211 #else 212 if (t_state < 0 || t_state >= TCP_NSTATES) 213 printf(" %d", t_state); 214 else 215 printf(" %s", compact ? shorttcpstates[t_state] : 216 tcpstates[t_state]); 217 #endif 218 } 219 if (Vflag && expires != NULL) { 220 if (expires->tv_sec == 0 && expires->tv_usec == -1) 221 printf(" reclaimed"); 222 else { 223 struct timeval delta; 224 225 timersub(expires, &now, &delta); 226 printf(" %.3fms", 227 delta.tv_sec * 1000.0 + delta.tv_usec / 1000.0); 228 } 229 } 230 putchar('\n'); 231 } 232 233 static void 234 dbg_printf(const char *fmt, ...) 235 { 236 return; 237 } 238 239 void 240 print_vtw_v6(const vtw_t *vtw) 241 { 242 const vtw_v6_t *v6 = (const vtw_v6_t *)vtw; 243 struct timeval delta; 244 char buf[2][128]; 245 static const struct timeval zero = {.tv_sec = 0, .tv_usec = 0}; 246 247 inet_ntop(AF_INET6, &v6->laddr, buf[0], sizeof(buf[0])); 248 inet_ntop(AF_INET6, &v6->faddr, buf[1], sizeof(buf[1])); 249 250 timersub(&vtw->expire, &now, &delta); 251 252 if (vtw->expire.tv_sec == 0 && vtw->expire.tv_usec == -1) { 253 dbg_printf("%15.15s:%d %15.15s:%d reclaimed\n" 254 ,buf[0], ntohs(v6->lport) 255 ,buf[1], ntohs(v6->fport)); 256 if (!(Vflag && vflag)) 257 return; 258 } else if (vtw->expire.tv_sec == 0) 259 return; 260 else if (timercmp(&delta, &zero, <) && !(Vflag && vflag)) { 261 dbg_printf("%15.15s:%d %15.15s:%d expired\n" 262 ,buf[0], ntohs(v6->lport) 263 ,buf[1], ntohs(v6->fport)); 264 return; 265 } else { 266 dbg_printf("%15.15s:%d %15.15s:%d expires in %.3fms\n" 267 ,buf[0], ntohs(v6->lport) 268 ,buf[1], ntohs(v6->fport) 269 ,delta.tv_sec * 1000.0 + delta.tv_usec / 1000.0); 270 } 271 ip6protopr0(0, 0, 0, 272 &v6->laddr, v6->lport, 273 &v6->faddr, v6->fport, 274 TCPS_TIME_WAIT, "tcp6", &vtw->expire); 275 } 276 277 void 278 ip6protopr(u_long off, const char *name) 279 { 280 struct inpcbtable table; 281 struct in6pcb *head, *prev, *next; 282 int istcp = strcmp(name, "tcp6") == 0; 283 static int first = 1; 284 285 compact = 0; 286 if (Aflag) { 287 if (!numeric_addr) 288 width = 18; 289 else { 290 width = 21; 291 compact = 1; 292 } 293 } else 294 width = 22; 295 296 if (use_sysctl) { 297 struct kinfo_pcb *pcblist; 298 int mib[8]; 299 size_t namelen = 0, size = 0, i; 300 char *mibname = NULL; 301 302 memset(mib, 0, sizeof(mib)); 303 304 if (asprintf(&mibname, "net.inet6.%s.pcblist", name) == -1) 305 err(1, "asprintf"); 306 307 /* get dynamic pcblist node */ 308 if (sysctlnametomib(mibname, mib, &namelen) == -1) { 309 if (errno == ENOENT) 310 return; 311 312 err(1, "sysctlnametomib: %s", mibname); 313 } 314 315 if (prog_sysctl(mib, __arraycount(mib), 316 NULL, &size, NULL, 0) == -1) 317 err(1, "sysctl (query)"); 318 319 if ((pcblist = malloc(size)) == NULL) 320 err(1, "malloc"); 321 memset(pcblist, 0, size); 322 323 mib[6] = sizeof(*pcblist); 324 mib[7] = size / sizeof(*pcblist); 325 326 if (prog_sysctl(mib, __arraycount(mib), pcblist, 327 &size, NULL, 0) == -1) 328 err(1, "sysctl (copy)"); 329 330 for (i = 0; i < size / sizeof(*pcblist); i++) { 331 struct sockaddr_in6 src, dst; 332 333 memcpy(&src, &pcblist[i].ki_s, sizeof(src)); 334 memcpy(&dst, &pcblist[i].ki_d, sizeof(dst)); 335 336 if (!aflag && IN6_IS_ADDR_UNSPECIFIED(&dst.sin6_addr)) 337 continue; 338 339 if (first) { 340 ip6protoprhdr(); 341 first = 0; 342 } 343 344 ip6protopr0((intptr_t) pcblist[i].ki_ppcbaddr, 345 pcblist[i].ki_rcvq, pcblist[i].ki_sndq, 346 &src.sin6_addr, src.sin6_port, 347 &dst.sin6_addr, dst.sin6_port, 348 pcblist[i].ki_tstate, name, NULL); 349 } 350 351 free(pcblist); 352 goto end; 353 } 354 355 if (off == 0) 356 return; 357 kread(off, (char *)&table, sizeof (table)); 358 head = prev = 359 (struct in6pcb *)&((struct inpcbtable *)off)->inpt_queue.cqh_first; 360 next = (struct in6pcb *)table.inpt_queue.cqh_first; 361 362 while (next != head) { 363 kread((u_long)next, (char *)&in6pcb, sizeof in6pcb); 364 if ((struct in6pcb *)in6pcb.in6p_queue.cqe_prev != prev) { 365 printf("???\n"); 366 break; 367 } 368 prev = next; 369 next = (struct in6pcb *)in6pcb.in6p_queue.cqe_next; 370 371 if (in6pcb.in6p_af != AF_INET6) 372 continue; 373 374 if (!aflag && IN6_IS_ADDR_UNSPECIFIED(&in6pcb.in6p_faddr)) 375 continue; 376 kread((u_long)in6pcb.in6p_socket, (char *)&sockb, 377 sizeof (sockb)); 378 if (istcp) { 379 #ifdef TCP6 380 kread((u_long)in6pcb.in6p_ppcb, 381 (char *)&tcp6cb, sizeof (tcp6cb)); 382 #else 383 kread((u_long)in6pcb.in6p_ppcb, 384 (char *)&tcpcb, sizeof (tcpcb)); 385 #endif 386 } 387 if (first) { 388 ip6protoprhdr(); 389 first = 0; 390 } 391 ip6protopr0(istcp ? (intptr_t) in6pcb.in6p_ppcb : 392 (intptr_t) prev, sockb.so_rcv.sb_cc, sockb.so_snd.sb_cc, 393 &in6pcb.in6p_laddr, in6pcb.in6p_lport, 394 &in6pcb.in6p_faddr, in6pcb.in6p_fport, 395 tcpcb.t_state, name, NULL); 396 397 } 398 end: 399 if (istcp) { 400 gettimeofday(&now, NULL); 401 show_vtw_v6(print_vtw_v6); 402 } 403 } 404 405 #ifdef TCP6 406 /* 407 * Dump TCP6 statistics structure. 408 */ 409 void 410 tcp6_stats(u_long off, const char *name) 411 { 412 struct tcp6stat tcp6stat; 413 414 if (use_sysctl) { 415 size_t size = sizeof(tcp6stat); 416 417 if (sysctlbyname("net.inet6.tcp6.stats", &tcp6stat, &size, 418 NULL, 0) == -1) 419 return; 420 } else { 421 warnx("%s stats not available via KVM.", name); 422 return; 423 } 424 425 printf ("%s:\n", name); 426 427 #define p(f, m) if (tcp6stat.f || sflag <= 1) \ 428 printf(m, tcp6stat.f, plural(tcp6stat.f)) 429 #define p2(f1, f2, m) if (tcp6stat.f1 || tcp6stat.f2 || sflag <= 1) \ 430 printf(m, tcp6stat.f1, plural(tcp6stat.f1), tcp6stat.f2, plural(tcp6stat.f2)) 431 #define p3(f, m) if (tcp6stat.f || sflag <= 1) \ 432 printf(m, tcp6stat.f, plurales(tcp6stat.f)) 433 434 p(tcp6s_sndtotal, "\t%ld packet%s sent\n"); 435 p2(tcp6s_sndpack,tcp6s_sndbyte, 436 "\t\t%ld data packet%s (%ld byte%s)\n"); 437 p2(tcp6s_sndrexmitpack, tcp6s_sndrexmitbyte, 438 "\t\t%ld data packet%s (%ld byte%s) retransmitted\n"); 439 p2(tcp6s_sndacks, tcp6s_delack, 440 "\t\t%ld ack-only packet%s (%ld packet%s delayed)\n"); 441 p(tcp6s_sndurg, "\t\t%ld URG only packet%s\n"); 442 p(tcp6s_sndprobe, "\t\t%ld window probe packet%s\n"); 443 p(tcp6s_sndwinup, "\t\t%ld window update packet%s\n"); 444 p(tcp6s_sndctrl, "\t\t%ld control packet%s\n"); 445 p(tcp6s_rcvtotal, "\t%ld packet%s received\n"); 446 p2(tcp6s_rcvackpack, tcp6s_rcvackbyte, "\t\t%ld ack%s (for %ld byte%s)\n"); 447 p(tcp6s_rcvdupack, "\t\t%ld duplicate ack%s\n"); 448 p(tcp6s_rcvacktoomuch, "\t\t%ld ack%s for unsent data\n"); 449 p2(tcp6s_rcvpack, tcp6s_rcvbyte, 450 "\t\t%ld packet%s (%ld byte%s) received in-sequence\n"); 451 p2(tcp6s_rcvduppack, tcp6s_rcvdupbyte, 452 "\t\t%ld completely duplicate packet%s (%ld byte%s)\n"); 453 p(tcp6s_pawsdrop, "\t\t%ld old duplicate packet%s\n"); 454 p2(tcp6s_rcvpartduppack, tcp6s_rcvpartdupbyte, 455 "\t\t%ld packet%s with some dup. data (%ld byte%s duped)\n"); 456 p2(tcp6s_rcvoopack, tcp6s_rcvoobyte, 457 "\t\t%ld out-of-order packet%s (%ld byte%s)\n"); 458 p2(tcp6s_rcvpackafterwin, tcp6s_rcvbyteafterwin, 459 "\t\t%ld packet%s (%ld byte%s) of data after window\n"); 460 p(tcp6s_rcvwinprobe, "\t\t%ld window probe%s\n"); 461 p(tcp6s_rcvwinupd, "\t\t%ld window update packet%s\n"); 462 p(tcp6s_rcvafterclose, "\t\t%ld packet%s received after close\n"); 463 p(tcp6s_rcvbadsum, "\t\t%ld discarded for bad checksum%s\n"); 464 p(tcp6s_rcvbadoff, "\t\t%ld discarded for bad header offset field%s\n"); 465 p(tcp6s_rcvshort, "\t\t%ld discarded because packet%s too short\n"); 466 p(tcp6s_connattempt, "\t%ld connection request%s\n"); 467 p(tcp6s_accepts, "\t%ld connection accept%s\n"); 468 p(tcp6s_badsyn, "\t%ld bad connection attempt%s\n"); 469 p(tcp6s_connects, "\t%ld connection%s established (including accepts)\n"); 470 p2(tcp6s_closed, tcp6s_drops, 471 "\t%ld connection%s closed (including %ld drop%s)\n"); 472 p(tcp6s_conndrops, "\t%ld embryonic connection%s dropped\n"); 473 p2(tcp6s_rttupdated, tcp6s_segstimed, 474 "\t%ld segment%s updated rtt (of %ld attempt%s)\n"); 475 p(tcp6s_rexmttimeo, "\t%ld retransmit timeout%s\n"); 476 p(tcp6s_timeoutdrop, "\t\t%ld connection%s dropped by rexmit timeout\n"); 477 p(tcp6s_persisttimeo, "\t%ld persist timeout%s\n"); 478 p(tcp6s_persistdrop, "\t%ld connection%s timed out in persist\n"); 479 p(tcp6s_keeptimeo, "\t%ld keepalive timeout%s\n"); 480 p(tcp6s_keepprobe, "\t\t%ld keepalive probe%s sent\n"); 481 p(tcp6s_keepdrops, "\t\t%ld connection%s dropped by keepalive\n"); 482 p(tcp6s_predack, "\t%ld correct ACK header prediction%s\n"); 483 p(tcp6s_preddat, "\t%ld correct data packet header prediction%s\n"); 484 p3(tcp6s_pcbcachemiss, "\t%ld PCB cache miss%s\n"); 485 #undef p 486 #undef p2 487 #undef p3 488 } 489 #endif 490 491 /* 492 * Dump UDP6 statistics structure. 493 */ 494 void 495 udp6_stats(u_long off, const char *name) 496 { 497 uint64_t udp6stat[UDP6_NSTATS]; 498 u_quad_t delivered; 499 500 if (use_sysctl) { 501 size_t size = sizeof(udp6stat); 502 503 if (sysctlbyname("net.inet6.udp6.stats", udp6stat, &size, 504 NULL, 0) == -1) 505 return; 506 } else { 507 warnx("%s stats not available via KVM.", name); 508 return; 509 } 510 printf("%s:\n", name); 511 #define p(f, m) if (udp6stat[f] || sflag <= 1) \ 512 printf(m, (unsigned long long)udp6stat[f], plural(udp6stat[f])) 513 #define p1(f, m) if (udp6stat[f] || sflag <= 1) \ 514 printf(m, (unsigned long long)udp6stat[f]) 515 p(UDP6_STAT_IPACKETS, "\t%llu datagram%s received\n"); 516 p1(UDP6_STAT_HDROPS, "\t%llu with incomplete header\n"); 517 p1(UDP6_STAT_BADLEN, "\t%llu with bad data length field\n"); 518 p1(UDP6_STAT_BADSUM, "\t%llu with bad checksum\n"); 519 p1(UDP6_STAT_NOSUM, "\t%llu with no checksum\n"); 520 p1(UDP6_STAT_NOPORT, "\t%llu dropped due to no socket\n"); 521 p(UDP6_STAT_NOPORTMCAST, 522 "\t%llu multicast datagram%s dropped due to no socket\n"); 523 p1(UDP6_STAT_FULLSOCK, "\t%llu dropped due to full socket buffers\n"); 524 delivered = udp6stat[UDP6_STAT_IPACKETS] - 525 udp6stat[UDP6_STAT_HDROPS] - 526 udp6stat[UDP6_STAT_BADLEN] - 527 udp6stat[UDP6_STAT_BADSUM] - 528 udp6stat[UDP6_STAT_NOPORT] - 529 udp6stat[UDP6_STAT_NOPORTMCAST] - 530 udp6stat[UDP6_STAT_FULLSOCK]; 531 if (delivered || sflag <= 1) 532 printf("\t%llu delivered\n", (unsigned long long)delivered); 533 p(UDP6_STAT_OPACKETS, "\t%llu datagram%s output\n"); 534 #undef p 535 #undef p1 536 } 537 538 static const char *ip6nh[] = { 539 /*0*/ "hop by hop", 540 "ICMP", 541 "IGMP", 542 NULL, 543 "IP", 544 /*5*/ NULL, 545 "TCP", 546 NULL, 547 NULL, 548 NULL, 549 /*10*/ NULL, NULL, NULL, NULL, NULL, 550 /*15*/ NULL, 551 NULL, 552 "UDP", 553 NULL, 554 NULL, 555 /*20*/ NULL, 556 NULL, 557 "IDP", 558 NULL, 559 NULL, 560 /*25*/ NULL, 561 NULL, 562 NULL, 563 NULL, 564 "TP", 565 /*30*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 566 /*40*/ NULL, 567 "IP6", 568 NULL, 569 "routing", 570 "fragment", 571 /*45*/ NULL, NULL, NULL, NULL, NULL, 572 /*50*/ "ESP", 573 "AH", 574 NULL, 575 NULL, 576 NULL, 577 /*55*/ NULL, 578 NULL, 579 NULL, 580 "ICMP6", 581 "no next header", 582 /*60*/ "destination option", 583 NULL, 584 NULL, 585 NULL, 586 NULL, 587 /*65*/ NULL, NULL, NULL, NULL, NULL, 588 /*70*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 589 /*80*/ "ISOIP", 590 NULL, 591 NULL, 592 NULL, 593 NULL, 594 NULL, 595 NULL, 596 NULL, 597 NULL, 598 "OSPF", 599 /*90*/ NULL, NULL, NULL, NULL, NULL, 600 /*95*/ NULL, 601 NULL, 602 "Ethernet", 603 NULL, 604 NULL, 605 /*100*/ NULL, 606 NULL, 607 NULL, 608 "PIM", 609 NULL, 610 /*105*/ NULL, NULL, NULL, NULL, NULL, 611 /*110*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 612 /*120*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 613 /*130*/ NULL, 614 NULL, 615 "SCTP", 616 NULL, 617 NULL, 618 /*135*/ NULL, NULL, NULL, NULL, NULL, 619 /*140*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 620 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 621 /*160*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 622 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 623 /*180*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 624 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 625 /*200*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 626 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 627 /*220*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 628 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 629 /*240*/ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 630 NULL, NULL, NULL, NULL, NULL, NULL, 631 }; 632 633 /* 634 * Dump IP6 statistics structure. 635 */ 636 void 637 ip6_stats(u_long off, const char *name) 638 { 639 uint64_t ip6stat[IP6_NSTATS]; 640 int first, i; 641 struct protoent *ep; 642 const char *n; 643 644 if (use_sysctl) { 645 size_t size = sizeof(ip6stat); 646 647 if (sysctlbyname("net.inet6.ip6.stats", ip6stat, &size, 648 NULL, 0) == -1) 649 return; 650 } else { 651 warnx("%s stats not available via KVM.", name); 652 return; 653 } 654 printf("%s:\n", name); 655 656 #define p(f, m) if (ip6stat[f] || sflag <= 1) \ 657 printf(m, (unsigned long long)ip6stat[f], plural(ip6stat[f])) 658 #define p1(f, m) if (ip6stat[f] || sflag <= 1) \ 659 printf(m, (unsigned long long)ip6stat[f]) 660 661 p(IP6_STAT_TOTAL, "\t%llu total packet%s received\n"); 662 p1(IP6_STAT_TOOSMALL, "\t%llu with size smaller than minimum\n"); 663 p1(IP6_STAT_TOOSHORT, "\t%llu with data size < data length\n"); 664 p1(IP6_STAT_BADOPTIONS, "\t%llu with bad options\n"); 665 p1(IP6_STAT_BADVERS, "\t%llu with incorrect version number\n"); 666 p(IP6_STAT_FRAGMENTS, "\t%llu fragment%s received\n"); 667 p(IP6_STAT_FRAGDROPPED, 668 "\t%llu fragment%s dropped (dup or out of space)\n"); 669 p(IP6_STAT_FRAGTIMEOUT, "\t%llu fragment%s dropped after timeout\n"); 670 p(IP6_STAT_FRAGOVERFLOW, "\t%llu fragment%s that exceeded limit\n"); 671 p(IP6_STAT_REASSEMBLED, "\t%llu packet%s reassembled ok\n"); 672 p(IP6_STAT_DELIVERED, "\t%llu packet%s for this host\n"); 673 p(IP6_STAT_FORWARD, "\t%llu packet%s forwarded\n"); 674 p(IP6_STAT_FASTFORWARD, "\t%llu packet%s fast forwarded\n"); 675 p1(IP6_STAT_FASTFORWARDFLOWS, "\t%llu fast forward flows\n"); 676 p(IP6_STAT_CANTFORWARD, "\t%llu packet%s not forwardable\n"); 677 p(IP6_STAT_REDIRECTSENT, "\t%llu redirect%s sent\n"); 678 p(IP6_STAT_LOCALOUT, "\t%llu packet%s sent from this host\n"); 679 p(IP6_STAT_RAWOUT, "\t%llu packet%s sent with fabricated ip header\n"); 680 p(IP6_STAT_ODROPPED, 681 "\t%llu output packet%s dropped due to no bufs, etc.\n"); 682 p(IP6_STAT_NOROUTE, "\t%llu output packet%s discarded due to no route\n"); 683 p(IP6_STAT_FRAGMENTED, "\t%llu output datagram%s fragmented\n"); 684 p(IP6_STAT_OFRAGMENTS, "\t%llu fragment%s created\n"); 685 p(IP6_STAT_CANTFRAG, "\t%llu datagram%s that can't be fragmented\n"); 686 p(IP6_STAT_BADSCOPE, "\t%llu packet%s that violated scope rules\n"); 687 p(IP6_STAT_NOTMEMBER, "\t%llu multicast packet%s which we don't join\n"); 688 for (first = 1, i = 0; i < 256; i++) 689 if (ip6stat[IP6_STAT_NXTHIST + i] != 0) { 690 if (first) { 691 printf("\tInput packet histogram:\n"); 692 first = 0; 693 } 694 n = NULL; 695 if (ip6nh[i]) 696 n = ip6nh[i]; 697 else if ((ep = getprotobynumber(i)) != NULL) 698 n = ep->p_name; 699 if (n) 700 printf("\t\t%s: %llu\n", n, 701 (unsigned long long)ip6stat[IP6_STAT_NXTHIST + i]); 702 else 703 printf("\t\t#%d: %llu\n", i, 704 (unsigned long long)ip6stat[IP6_STAT_NXTHIST + i]); 705 } 706 printf("\tMbuf statistics:\n"); 707 p(IP6_STAT_M1, "\t\t%llu one mbuf%s\n"); 708 for (first = 1, i = 0; i < 32; i++) { 709 char ifbuf[IFNAMSIZ]; 710 if (ip6stat[IP6_STAT_M2M + i] != 0) { 711 if (first) { 712 printf("\t\ttwo or more mbuf:\n"); 713 first = 0; 714 } 715 printf("\t\t\t%s = %llu\n", 716 if_indextoname(i, ifbuf), 717 (unsigned long long)ip6stat[IP6_STAT_M2M + i]); 718 } 719 } 720 p(IP6_STAT_MEXT1, "\t\t%llu one ext mbuf%s\n"); 721 p(IP6_STAT_MEXT2M, "\t\t%llu two or more ext mbuf%s\n"); 722 p(IP6_STAT_EXTHDRTOOLONG, 723 "\t%llu packet%s whose headers are not continuous\n"); 724 p(IP6_STAT_NOGIF, "\t%llu tunneling packet%s that can't find gif\n"); 725 p(IP6_STAT_TOOMANYHDR, 726 "\t%llu packet%s discarded due to too many headers\n"); 727 728 /* for debugging source address selection */ 729 #define PRINT_SCOPESTAT(s,i) do {\ 730 switch(i) { /* XXX hardcoding in each case */\ 731 case 1:\ 732 p(s, "\t\t%llu node-local%s\n");\ 733 break;\ 734 case 2:\ 735 p(s, "\t\t%llu link-local%s\n");\ 736 break;\ 737 case 5:\ 738 p(s, "\t\t%llu site-local%s\n");\ 739 break;\ 740 case 14:\ 741 p(s, "\t\t%llu global%s\n");\ 742 break;\ 743 default:\ 744 printf("\t\t%llu addresses scope=%x\n",\ 745 (unsigned long long)ip6stat[s], i);\ 746 }\ 747 } while(/*CONSTCOND*/0); 748 749 p(IP6_STAT_SOURCES_NONE, 750 "\t%llu failure%s of source address selection\n"); 751 for (first = 1, i = 0; i < 16; i++) { 752 if (ip6stat[IP6_STAT_SOURCES_SAMEIF + i]) { 753 if (first) { 754 printf("\tsource addresses on an outgoing I/F\n"); 755 first = 0; 756 } 757 PRINT_SCOPESTAT(IP6_STAT_SOURCES_SAMEIF + i, i); 758 } 759 } 760 for (first = 1, i = 0; i < 16; i++) { 761 if (ip6stat[IP6_STAT_SOURCES_OTHERIF + i]) { 762 if (first) { 763 printf("\tsource addresses on a non-outgoing I/F\n"); 764 first = 0; 765 } 766 PRINT_SCOPESTAT(IP6_STAT_SOURCES_OTHERIF + i, i); 767 } 768 } 769 for (first = 1, i = 0; i < 16; i++) { 770 if (ip6stat[IP6_STAT_SOURCES_SAMESCOPE + i]) { 771 if (first) { 772 printf("\tsource addresses of same scope\n"); 773 first = 0; 774 } 775 PRINT_SCOPESTAT(IP6_STAT_SOURCES_SAMESCOPE + i, i); 776 } 777 } 778 for (first = 1, i = 0; i < 16; i++) { 779 if (ip6stat[IP6_STAT_SOURCES_OTHERSCOPE + i]) { 780 if (first) { 781 printf("\tsource addresses of a different scope\n"); 782 first = 0; 783 } 784 PRINT_SCOPESTAT(IP6_STAT_SOURCES_OTHERSCOPE + i, i); 785 } 786 } 787 for (first = 1, i = 0; i < 16; i++) { 788 if (ip6stat[IP6_STAT_SOURCES_DEPRECATED + i]) { 789 if (first) { 790 printf("\tdeprecated source addresses\n"); 791 first = 0; 792 } 793 PRINT_SCOPESTAT(IP6_STAT_SOURCES_DEPRECATED + i, i); 794 } 795 } 796 797 p1(IP6_STAT_FORWARD_CACHEHIT, "\t%llu forward cache hit\n"); 798 p1(IP6_STAT_FORWARD_CACHEMISS, "\t%llu forward cache miss\n"); 799 #undef p 800 #undef p1 801 } 802 803 /* 804 * Dump IPv6 per-interface statistics based on RFC 2465. 805 */ 806 void 807 ip6_ifstats(const char *ifname) 808 { 809 struct in6_ifreq ifr; 810 int s; 811 #define p(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \ 812 printf(m, (unsigned long long)ifr.ifr_ifru.ifru_stat.f, \ 813 plural(ifr.ifr_ifru.ifru_stat.f)) 814 #define p_5(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \ 815 printf(m, (unsigned long long)ip6stat.f) 816 817 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 818 perror("Warning: socket(AF_INET6)"); 819 return; 820 } 821 822 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 823 printf("ip6 on %s:\n", ifname); 824 825 if (ioctl(s, SIOCGIFSTAT_IN6, (char *)&ifr) < 0) { 826 perror("Warning: ioctl(SIOCGIFSTAT_IN6)"); 827 goto end; 828 } 829 830 p(ifs6_in_receive, "\t%llu total input datagram%s\n"); 831 p(ifs6_in_hdrerr, "\t%llu datagram%s with invalid header received\n"); 832 p(ifs6_in_toobig, "\t%llu datagram%s exceeded MTU received\n"); 833 p(ifs6_in_noroute, "\t%llu datagram%s with no route received\n"); 834 p(ifs6_in_addrerr, "\t%llu datagram%s with invalid dst received\n"); 835 p(ifs6_in_truncated, "\t%llu truncated datagram%s received\n"); 836 p(ifs6_in_protounknown, "\t%llu datagram%s with unknown proto received\n"); 837 p(ifs6_in_discard, "\t%llu input datagram%s discarded\n"); 838 p(ifs6_in_deliver, 839 "\t%llu datagram%s delivered to an upper layer protocol\n"); 840 p(ifs6_out_forward, "\t%llu datagram%s forwarded to this interface\n"); 841 p(ifs6_out_request, 842 "\t%llu datagram%s sent from an upper layer protocol\n"); 843 p(ifs6_out_discard, "\t%llu total discarded output datagram%s\n"); 844 p(ifs6_out_fragok, "\t%llu output datagram%s fragmented\n"); 845 p(ifs6_out_fragfail, "\t%llu output datagram%s failed on fragment\n"); 846 p(ifs6_out_fragcreat, "\t%llu output datagram%s succeeded on fragment\n"); 847 p(ifs6_reass_reqd, "\t%llu incoming datagram%s fragmented\n"); 848 p(ifs6_reass_ok, "\t%llu datagram%s reassembled\n"); 849 p(ifs6_reass_fail, "\t%llu datagram%s failed on reassembling\n"); 850 p(ifs6_in_mcast, "\t%llu multicast datagram%s received\n"); 851 p(ifs6_out_mcast, "\t%llu multicast datagram%s sent\n"); 852 853 end: 854 close(s); 855 856 #undef p 857 #undef p_5 858 } 859 860 static const char *icmp6names[] = { 861 "#0", 862 "unreach", 863 "packet too big", 864 "time exceed", 865 "parameter problem", 866 "#5", 867 "#6", 868 "#7", 869 "#8", 870 "#9", 871 "#10", 872 "#11", 873 "#12", 874 "#13", 875 "#14", 876 "#15", 877 "#16", 878 "#17", 879 "#18", 880 "#19", 881 "#20", 882 "#21", 883 "#22", 884 "#23", 885 "#24", 886 "#25", 887 "#26", 888 "#27", 889 "#28", 890 "#29", 891 "#30", 892 "#31", 893 "#32", 894 "#33", 895 "#34", 896 "#35", 897 "#36", 898 "#37", 899 "#38", 900 "#39", 901 "#40", 902 "#41", 903 "#42", 904 "#43", 905 "#44", 906 "#45", 907 "#46", 908 "#47", 909 "#48", 910 "#49", 911 "#50", 912 "#51", 913 "#52", 914 "#53", 915 "#54", 916 "#55", 917 "#56", 918 "#57", 919 "#58", 920 "#59", 921 "#60", 922 "#61", 923 "#62", 924 "#63", 925 "#64", 926 "#65", 927 "#66", 928 "#67", 929 "#68", 930 "#69", 931 "#70", 932 "#71", 933 "#72", 934 "#73", 935 "#74", 936 "#75", 937 "#76", 938 "#77", 939 "#78", 940 "#79", 941 "#80", 942 "#81", 943 "#82", 944 "#83", 945 "#84", 946 "#85", 947 "#86", 948 "#87", 949 "#88", 950 "#89", 951 "#80", 952 "#91", 953 "#92", 954 "#93", 955 "#94", 956 "#95", 957 "#96", 958 "#97", 959 "#98", 960 "#99", 961 "#100", 962 "#101", 963 "#102", 964 "#103", 965 "#104", 966 "#105", 967 "#106", 968 "#107", 969 "#108", 970 "#109", 971 "#110", 972 "#111", 973 "#112", 974 "#113", 975 "#114", 976 "#115", 977 "#116", 978 "#117", 979 "#118", 980 "#119", 981 "#120", 982 "#121", 983 "#122", 984 "#123", 985 "#124", 986 "#125", 987 "#126", 988 "#127", 989 "echo", 990 "echo reply", 991 "multicast listener query", 992 "multicast listener report", 993 "multicast listener done", 994 "router solicitation", 995 "router advertisement", 996 "neighbor solicitation", 997 "neighbor advertisement", 998 "redirect", 999 "router renumbering", 1000 "node information request", 1001 "node information reply", 1002 "#141", 1003 "#142", 1004 "#143", 1005 "#144", 1006 "#145", 1007 "#146", 1008 "#147", 1009 "#148", 1010 "#149", 1011 "#150", 1012 "#151", 1013 "#152", 1014 "#153", 1015 "#154", 1016 "#155", 1017 "#156", 1018 "#157", 1019 "#158", 1020 "#159", 1021 "#160", 1022 "#161", 1023 "#162", 1024 "#163", 1025 "#164", 1026 "#165", 1027 "#166", 1028 "#167", 1029 "#168", 1030 "#169", 1031 "#170", 1032 "#171", 1033 "#172", 1034 "#173", 1035 "#174", 1036 "#175", 1037 "#176", 1038 "#177", 1039 "#178", 1040 "#179", 1041 "#180", 1042 "#181", 1043 "#182", 1044 "#183", 1045 "#184", 1046 "#185", 1047 "#186", 1048 "#187", 1049 "#188", 1050 "#189", 1051 "#180", 1052 "#191", 1053 "#192", 1054 "#193", 1055 "#194", 1056 "#195", 1057 "#196", 1058 "#197", 1059 "#198", 1060 "#199", 1061 "#200", 1062 "#201", 1063 "#202", 1064 "#203", 1065 "#204", 1066 "#205", 1067 "#206", 1068 "#207", 1069 "#208", 1070 "#209", 1071 "#210", 1072 "#211", 1073 "#212", 1074 "#213", 1075 "#214", 1076 "#215", 1077 "#216", 1078 "#217", 1079 "#218", 1080 "#219", 1081 "#220", 1082 "#221", 1083 "#222", 1084 "#223", 1085 "#224", 1086 "#225", 1087 "#226", 1088 "#227", 1089 "#228", 1090 "#229", 1091 "#230", 1092 "#231", 1093 "#232", 1094 "#233", 1095 "#234", 1096 "#235", 1097 "#236", 1098 "#237", 1099 "#238", 1100 "#239", 1101 "#240", 1102 "#241", 1103 "#242", 1104 "#243", 1105 "#244", 1106 "#245", 1107 "#246", 1108 "#247", 1109 "#248", 1110 "#249", 1111 "#250", 1112 "#251", 1113 "#252", 1114 "#253", 1115 "#254", 1116 "#255", 1117 }; 1118 1119 /* 1120 * Dump ICMPv6 statistics. 1121 */ 1122 void 1123 icmp6_stats(u_long off, const char *name) 1124 { 1125 uint64_t icmp6stat[ICMP6_NSTATS]; 1126 register int i, first; 1127 1128 if (use_sysctl) { 1129 size_t size = sizeof(icmp6stat); 1130 1131 if (sysctlbyname("net.inet6.icmp6.stats", icmp6stat, &size, 1132 NULL, 0) == -1) 1133 return; 1134 } else { 1135 warnx("%s stats not available via KVM.", name); 1136 return; 1137 } 1138 1139 printf("%s:\n", name); 1140 1141 #define p(f, m) if (icmp6stat[f] || sflag <= 1) \ 1142 printf(m, (unsigned long long)icmp6stat[f], plural(icmp6stat[f])) 1143 #define p_oerr(f, m) if (icmp6stat[ICMP6_STAT_OUTERRHIST + f] || sflag <= 1) \ 1144 printf(m, (unsigned long long)icmp6stat[ICMP6_STAT_OUTERRHIST + f]) 1145 1146 p(ICMP6_STAT_ERROR, "\t%llu call%s to icmp6_error\n"); 1147 p(ICMP6_STAT_CANTERROR, 1148 "\t%llu error%s not generated because old message was icmp6 or so\n"); 1149 p(ICMP6_STAT_TOOFREQ, 1150 "\t%llu error%s not generated because of rate limitation\n"); 1151 for (first = 1, i = 0; i < 256; i++) 1152 if (icmp6stat[ICMP6_STAT_OUTHIST + i] != 0) { 1153 if (first) { 1154 printf("\tOutput packet histogram:\n"); 1155 first = 0; 1156 } 1157 printf("\t\t%s: %llu\n", icmp6names[i], 1158 (unsigned long long)icmp6stat[ICMP6_STAT_OUTHIST + i]); 1159 } 1160 p(ICMP6_STAT_BADCODE, "\t%llu message%s with bad code fields\n"); 1161 p(ICMP6_STAT_TOOSHORT, "\t%llu message%s < minimum length\n"); 1162 p(ICMP6_STAT_CHECKSUM, "\t%llu bad checksum%s\n"); 1163 p(ICMP6_STAT_BADLEN, "\t%llu message%s with bad length\n"); 1164 for (first = 1, i = 0; i < ICMP6_MAXTYPE; i++) 1165 if (icmp6stat[ICMP6_STAT_INHIST + i] != 0) { 1166 if (first) { 1167 printf("\tInput packet histogram:\n"); 1168 first = 0; 1169 } 1170 printf("\t\t%s: %llu\n", icmp6names[i], 1171 (unsigned long long)icmp6stat[ICMP6_STAT_INHIST + i]); 1172 } 1173 printf("\tHistogram of error messages to be generated:\n"); 1174 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_NOROUTE, "\t\t%llu no route\n"); 1175 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_ADMIN, "\t\t%llu administratively prohibited\n"); 1176 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_BEYONDSCOPE, "\t\t%llu beyond scope\n"); 1177 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_ADDR, "\t\t%llu address unreachable\n"); 1178 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_NOPORT, "\t\t%llu port unreachable\n"); 1179 p_oerr(ICMP6_ERRSTAT_PACKET_TOO_BIG, "\t\t%llu packet too big\n"); 1180 p_oerr(ICMP6_ERRSTAT_TIME_EXCEED_TRANSIT, "\t\t%llu time exceed transit\n"); 1181 p_oerr(ICMP6_ERRSTAT_TIME_EXCEED_REASSEMBLY, "\t\t%llu time exceed reassembly\n"); 1182 p_oerr(ICMP6_ERRSTAT_PARAMPROB_HEADER, "\t\t%llu erroneous header field\n"); 1183 p_oerr(ICMP6_ERRSTAT_PARAMPROB_NEXTHEADER, "\t\t%llu unrecognized next header\n"); 1184 p_oerr(ICMP6_ERRSTAT_PARAMPROB_OPTION, "\t\t%llu unrecognized option\n"); 1185 p_oerr(ICMP6_ERRSTAT_REDIRECT, "\t\t%llu redirect\n"); 1186 p_oerr(ICMP6_ERRSTAT_UNKNOWN, "\t\t%llu unknown\n"); 1187 1188 p(ICMP6_STAT_REFLECT, "\t%llu message response%s generated\n"); 1189 p(ICMP6_STAT_ND_TOOMANYOPT, "\t%llu message%s with too many ND options\n"); 1190 p(ICMP6_STAT_ND_BADOPT, "\t%llu message%s with bad ND options\n"); 1191 p(ICMP6_STAT_BADNS, "\t%llu bad neighbor solicitation message%s\n"); 1192 p(ICMP6_STAT_BADNA, "\t%llu bad neighbor advertisement message%s\n"); 1193 p(ICMP6_STAT_BADRS, "\t%llu bad router solicitation message%s\n"); 1194 p(ICMP6_STAT_BADRA, "\t%llu bad router advertisement message%s\n"); 1195 p(ICMP6_STAT_BADREDIRECT, "\t%llu bad redirect message%s\n"); 1196 p(ICMP6_STAT_PMTUCHG, "\t%llu path MTU change%s\n"); 1197 #undef p 1198 #undef p_oerr 1199 } 1200 1201 /* 1202 * Dump ICMPv6 per-interface statistics based on RFC 2466. 1203 */ 1204 void 1205 icmp6_ifstats(const char *ifname) 1206 { 1207 struct in6_ifreq ifr; 1208 int s; 1209 #define p(f, m) if (ifr.ifr_ifru.ifru_icmp6stat.f || sflag <= 1) \ 1210 printf(m, (unsigned long long)ifr.ifr_ifru.ifru_icmp6stat.f, \ 1211 plural(ifr.ifr_ifru.ifru_icmp6stat.f)) 1212 1213 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 1214 perror("Warning: socket(AF_INET6)"); 1215 return; 1216 } 1217 1218 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 1219 printf("icmp6 on %s:\n", ifname); 1220 1221 if (ioctl(s, SIOCGIFSTAT_ICMP6, (char *)&ifr) < 0) { 1222 perror("Warning: ioctl(SIOCGIFSTAT_ICMP6)"); 1223 goto end; 1224 } 1225 1226 p(ifs6_in_msg, "\t%llu total input message%s\n"); 1227 p(ifs6_in_error, "\t%llu total input error message%s\n"); 1228 p(ifs6_in_dstunreach, "\t%llu input destination unreachable error%s\n"); 1229 p(ifs6_in_adminprohib, "\t%llu input administratively prohibited error%s\n"); 1230 p(ifs6_in_timeexceed, "\t%llu input time exceeded error%s\n"); 1231 p(ifs6_in_paramprob, "\t%llu input parameter problem error%s\n"); 1232 p(ifs6_in_pkttoobig, "\t%llu input packet too big error%s\n"); 1233 p(ifs6_in_echo, "\t%llu input echo request%s\n"); 1234 p(ifs6_in_echoreply, "\t%llu input echo reply%s\n"); 1235 p(ifs6_in_routersolicit, "\t%llu input router solicitation%s\n"); 1236 p(ifs6_in_routeradvert, "\t%llu input router advertisement%s\n"); 1237 p(ifs6_in_neighborsolicit, "\t%llu input neighbor solicitation%s\n"); 1238 p(ifs6_in_neighboradvert, "\t%llu input neighbor advertisement%s\n"); 1239 p(ifs6_in_redirect, "\t%llu input redirect%s\n"); 1240 p(ifs6_in_mldquery, "\t%llu input MLD query%s\n"); 1241 p(ifs6_in_mldreport, "\t%llu input MLD report%s\n"); 1242 p(ifs6_in_mlddone, "\t%llu input MLD done%s\n"); 1243 1244 p(ifs6_out_msg, "\t%llu total output message%s\n"); 1245 p(ifs6_out_error, "\t%llu total output error message%s\n"); 1246 p(ifs6_out_dstunreach, "\t%llu output destination unreachable error%s\n"); 1247 p(ifs6_out_adminprohib, "\t%llu output administratively prohibited error%s\n"); 1248 p(ifs6_out_timeexceed, "\t%llu output time exceeded error%s\n"); 1249 p(ifs6_out_paramprob, "\t%llu output parameter problem error%s\n"); 1250 p(ifs6_out_pkttoobig, "\t%llu output packet too big error%s\n"); 1251 p(ifs6_out_echo, "\t%llu output echo request%s\n"); 1252 p(ifs6_out_echoreply, "\t%llu output echo reply%s\n"); 1253 p(ifs6_out_routersolicit, "\t%llu output router solicitation%s\n"); 1254 p(ifs6_out_routeradvert, "\t%llu output router advertisement%s\n"); 1255 p(ifs6_out_neighborsolicit, "\t%llu output neighbor solicitation%s\n"); 1256 p(ifs6_out_neighboradvert, "\t%llu output neighbor advertisement%s\n"); 1257 p(ifs6_out_redirect, "\t%llu output redirect%s\n"); 1258 p(ifs6_out_mldquery, "\t%llu output MLD query%s\n"); 1259 p(ifs6_out_mldreport, "\t%llu output MLD report%s\n"); 1260 p(ifs6_out_mlddone, "\t%llu output MLD done%s\n"); 1261 1262 end: 1263 close(s); 1264 #undef p 1265 } 1266 1267 /* 1268 * Dump PIM statistics structure. 1269 */ 1270 void 1271 pim6_stats(u_long off, const char *name) 1272 { 1273 uint64_t pim6stat[PIM6_NSTATS]; 1274 1275 if (use_sysctl) { 1276 size_t size = sizeof(pim6stat); 1277 1278 if (sysctlbyname("net.inet6.pim6.stats", pim6stat, &size, 1279 NULL, 0) == -1) 1280 return; 1281 } else { 1282 warnx("%s stats not available via KVM.", name); 1283 return; 1284 } 1285 printf("%s:\n", name); 1286 1287 #define p(f, m) if (pim6stat[f] || sflag <= 1) \ 1288 printf(m, (unsigned long long)pim6stat[f], plural(pim6stat[f])) 1289 p(PIM6_STAT_RCV_TOTAL, "\t%llu message%s received\n"); 1290 p(PIM6_STAT_RCV_TOOSHORT, "\t%llu message%s received with too few bytes\n"); 1291 p(PIM6_STAT_RCV_BADSUM, "\t%llu message%s received with bad checksum\n"); 1292 p(PIM6_STAT_RCV_BADVERSION, "\t%llu message%s received with bad version\n"); 1293 p(PIM6_STAT_RCV_REGISTERS, "\t%llu register%s received\n"); 1294 p(PIM6_STAT_RCV_BADREGISTERS, "\t%llu bad register%s received\n"); 1295 p(PIM6_STAT_SND_REGISTERS, "\t%llu register%s sent\n"); 1296 #undef p 1297 } 1298 1299 /* 1300 * Dump raw ip6 statistics structure. 1301 */ 1302 void 1303 rip6_stats(u_long off, const char *name) 1304 { 1305 uint64_t rip6stat[RIP6_NSTATS]; 1306 u_quad_t delivered; 1307 1308 if (use_sysctl) { 1309 size_t size = sizeof(rip6stat); 1310 1311 if (sysctlbyname("net.inet6.raw6.stats", rip6stat, &size, 1312 NULL, 0) == -1) 1313 return; 1314 } else { 1315 warnx("%s stats not available via KVM.", name); 1316 return; 1317 } 1318 printf("%s:\n", name); 1319 1320 #define p(f, m) if (rip6stat[f] || sflag <= 1) \ 1321 printf(m, (unsigned long long)rip6stat[f], plural(rip6stat[f])) 1322 p(RIP6_STAT_IPACKETS, "\t%llu message%s received\n"); 1323 p(RIP6_STAT_ISUM, "\t%llu checksum calculation%s on inbound\n"); 1324 p(RIP6_STAT_BADSUM, "\t%llu message%s with bad checksum\n"); 1325 p(RIP6_STAT_NOSOCK, "\t%llu message%s dropped due to no socket\n"); 1326 p(RIP6_STAT_NOSOCKMCAST, 1327 "\t%llu multicast message%s dropped due to no socket\n"); 1328 p(RIP6_STAT_FULLSOCK, 1329 "\t%llu message%s dropped due to full socket buffers\n"); 1330 delivered = rip6stat[RIP6_STAT_IPACKETS] - 1331 rip6stat[RIP6_STAT_BADSUM] - 1332 rip6stat[RIP6_STAT_NOSOCK] - 1333 rip6stat[RIP6_STAT_NOSOCKMCAST] - 1334 rip6stat[RIP6_STAT_FULLSOCK]; 1335 if (delivered || sflag <= 1) 1336 printf("\t%llu delivered\n", (unsigned long long)delivered); 1337 p(RIP6_STAT_OPACKETS, "\t%llu datagram%s output\n"); 1338 #undef p 1339 } 1340 1341 /* 1342 * Pretty print an Internet address (net address + port). 1343 * Take numeric_addr and numeric_port into consideration. 1344 */ 1345 void 1346 inet6print(const struct in6_addr *in6, int port, const char *proto) 1347 { 1348 #define GETSERVBYPORT6(port, proto, ret)\ 1349 do {\ 1350 if (strcmp((proto), "tcp6") == 0)\ 1351 (ret) = getservbyport((int)(port), "tcp");\ 1352 else if (strcmp((proto), "udp6") == 0)\ 1353 (ret) = getservbyport((int)(port), "udp");\ 1354 else\ 1355 (ret) = getservbyport((int)(port), (proto));\ 1356 } while (0) 1357 struct servent *sp = 0; 1358 char line[80], *cp; 1359 int lwidth; 1360 1361 lwidth = Aflag ? 12 : 16; 1362 if (vflag && lwidth < (int)strlen(inet6name(in6))) 1363 lwidth = strlen(inet6name(in6)); 1364 snprintf(line, sizeof(line), "%.*s.", lwidth, inet6name(in6)); 1365 cp = strchr(line, '\0'); 1366 if (!numeric_port && port) 1367 GETSERVBYPORT6(port, proto, sp); 1368 if (sp || port == 0) 1369 snprintf(cp, sizeof(line) - (cp - line), 1370 "%s", sp ? sp->s_name : "*"); 1371 else 1372 snprintf(cp, sizeof(line) - (cp - line), 1373 "%d", ntohs((u_short)port)); 1374 lwidth = Aflag ? 18 : 22; 1375 if (vflag && lwidth < (int)strlen(line)) 1376 lwidth = strlen(line); 1377 printf(" %-*.*s", lwidth, lwidth, line); 1378 } 1379 1380 /* 1381 * Construct an Internet address representation. 1382 * If the numeric_addr has been supplied, give 1383 * numeric value, otherwise try for symbolic name. 1384 */ 1385 1386 char * 1387 inet6name(const struct in6_addr *in6p) 1388 { 1389 register char *cp; 1390 static char line[NI_MAXHOST]; 1391 struct hostent *hp; 1392 static char domain[MAXHOSTNAMELEN + 1]; 1393 static int first = 1; 1394 char hbuf[NI_MAXHOST]; 1395 struct sockaddr_in6 sin6; 1396 const int niflag = NI_NUMERICHOST; 1397 1398 if (first && !numeric_addr) { 1399 first = 0; 1400 if (gethostname(domain, MAXHOSTNAMELEN) == 0 && 1401 (cp = strchr(domain, '.'))) 1402 (void) strlcpy(domain, cp + 1, sizeof(domain)); 1403 else 1404 domain[0] = 0; 1405 } 1406 cp = 0; 1407 if (!numeric_addr && !IN6_IS_ADDR_UNSPECIFIED(in6p)) { 1408 hp = gethostbyaddr((const char *)in6p, sizeof(*in6p), AF_INET6); 1409 if (hp) { 1410 if ((cp = strchr(hp->h_name, '.')) && 1411 !strcmp(cp + 1, domain)) 1412 *cp = 0; 1413 cp = hp->h_name; 1414 } 1415 } 1416 if (IN6_IS_ADDR_UNSPECIFIED(in6p)) 1417 strlcpy(line, "*", sizeof(line)); 1418 else if (cp) 1419 strlcpy(line, cp, sizeof(line)); 1420 else { 1421 memset(&sin6, 0, sizeof(sin6)); 1422 sin6.sin6_len = sizeof(sin6); 1423 sin6.sin6_family = AF_INET6; 1424 sin6.sin6_addr = *in6p; 1425 #ifdef __KAME__ 1426 if (IN6_IS_ADDR_LINKLOCAL(in6p) || 1427 IN6_IS_ADDR_MC_LINKLOCAL(in6p)) { 1428 sin6.sin6_scope_id = 1429 ntohs(*(const u_int16_t *)&in6p->s6_addr[2]); 1430 sin6.sin6_addr.s6_addr[2] = 0; 1431 sin6.sin6_addr.s6_addr[3] = 0; 1432 } 1433 #endif 1434 if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, 1435 hbuf, sizeof(hbuf), NULL, 0, niflag) != 0) 1436 strlcpy(hbuf, "?", sizeof(hbuf)); 1437 strlcpy(line, hbuf, sizeof(line)); 1438 } 1439 return (line); 1440 } 1441 1442 #ifdef TCP6 1443 /* 1444 * Dump the contents of a TCP6 PCB. 1445 */ 1446 void 1447 tcp6_dump(u_long pcbaddr) 1448 u_long pcbaddr; 1449 { 1450 struct tcp6cb tcp6cb; 1451 int i; 1452 1453 kread(pcbaddr, (char *)&tcp6cb, sizeof(tcp6cb)); 1454 1455 printf("TCP Protocol Control Block at 0x%08lx:\n\n", pcbaddr); 1456 1457 printf("Timers:\n"); 1458 for (i = 0; i < TCP6T_NTIMERS; i++) 1459 printf("\t%s: %u", tcp6timers[i], tcp6cb.t_timer[i]); 1460 printf("\n\n"); 1461 1462 if (tcp6cb.t_state < 0 || tcp6cb.t_state >= TCP6_NSTATES) 1463 printf("State: %d", tcp6cb.t_state); 1464 else 1465 printf("State: %s", tcp6states[tcp6cb.t_state]); 1466 printf(", flags 0x%x, in6pcb 0x%lx\n\n", tcp6cb.t_flags, 1467 (u_long)tcp6cb.t_in6pcb); 1468 1469 printf("rxtshift %d, rxtcur %d, dupacks %d\n", tcp6cb.t_rxtshift, 1470 tcp6cb.t_rxtcur, tcp6cb.t_dupacks); 1471 printf("peermaxseg %u, maxseg %u, force %d\n\n", tcp6cb.t_peermaxseg, 1472 tcp6cb.t_maxseg, tcp6cb.t_force); 1473 1474 printf("snd_una %u, snd_nxt %u, snd_up %u\n", 1475 tcp6cb.snd_una, tcp6cb.snd_nxt, tcp6cb.snd_up); 1476 printf("snd_wl1 %u, snd_wl2 %u, iss %u, snd_wnd %llu\n\n", 1477 tcp6cb.snd_wl1, tcp6cb.snd_wl2, tcp6cb.iss, 1478 (unsigned long long)tcp6cb.snd_wnd); 1479 1480 printf("rcv_wnd %llu, rcv_nxt %u, rcv_up %u, irs %u\n\n", 1481 (unsigned long long)cp6cb.rcv_wnd, tcp6cb.rcv_nxt, 1482 tcp6cb.rcv_up, tcp6cb.irs); 1483 1484 printf("rcv_adv %u, snd_max %u, snd_cwnd %llu, snd_ssthresh %llu\n", 1485 tcp6cb.rcv_adv, tcp6cb.snd_max, (unsigned long long)tcp6cb.snd_cwnd, 1486 (unsigned long long)tcp6cb.snd_ssthresh); 1487 1488 printf("idle %d, rtt %d, rtseq %u, srtt %d, rttvar %d, rttmin %d, " 1489 "max_sndwnd %llu\n\n", tcp6cb.t_idle, tcp6cb.t_rtt, tcp6cb.t_rtseq, 1490 tcp6cb.t_srtt, tcp6cb.t_rttvar, tcp6cb.t_rttmin, 1491 (unsigned long long)tcp6cb.max_sndwnd); 1492 1493 printf("oobflags %d, iobc %d, softerror %d\n\n", tcp6cb.t_oobflags, 1494 tcp6cb.t_iobc, tcp6cb.t_softerror); 1495 1496 printf("snd_scale %d, rcv_scale %d, req_r_scale %d, req_s_scale %d\n", 1497 tcp6cb.snd_scale, tcp6cb.rcv_scale, tcp6cb.request_r_scale, 1498 tcp6cb.requested_s_scale); 1499 printf("ts_recent %u, ts_regent_age %d, last_ack_sent %u\n", 1500 tcp6cb.ts_recent, tcp6cb.ts_recent_age, tcp6cb.last_ack_sent); 1501 } 1502 #endif 1503 1504 #endif /*INET6*/ 1505
Indexes created Thu Sep 25 16:09:42 GMT 2025