1 /* $NetBSD: inet6.c,v 1.75 2020/08/06 07:38:54 knakahara 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 1.75 2020/08/06 07:38:54 knakahara 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_NOIPSEC, "\t%llu tunneling packet%s that can't find ipsecif\n"); 728 p(IP6_STAT_TOOMANYHDR, 729 "\t%llu packet%s discarded due to too many headers\n"); 730 731 /* for debugging source address selection */ 732 #define PRINT_SCOPESTAT(s,i) do {\ 733 switch(i) { /* XXX hardcoding in each case */\ 734 case 1:\ 735 p(s, "\t\t%llu node-local%s\n");\ 736 break;\ 737 case 2:\ 738 p(s, "\t\t%llu link-local%s\n");\ 739 break;\ 740 case 5:\ 741 p(s, "\t\t%llu site-local%s\n");\ 742 break;\ 743 case 14:\ 744 p(s, "\t\t%llu global%s\n");\ 745 break;\ 746 default:\ 747 printf("\t\t%llu addresses scope=%x\n",\ 748 (unsigned long long)ip6stat[s], i);\ 749 }\ 750 } while(/*CONSTCOND*/0); 751 752 p(IP6_STAT_SOURCES_NONE, 753 "\t%llu failure%s of source address selection\n"); 754 for (first = 1, i = 0; i < 16; i++) { 755 if (ip6stat[IP6_STAT_SOURCES_SAMEIF + i]) { 756 if (first) { 757 printf("\tsource addresses on an outgoing I/F\n"); 758 first = 0; 759 } 760 PRINT_SCOPESTAT(IP6_STAT_SOURCES_SAMEIF + i, i); 761 } 762 } 763 for (first = 1, i = 0; i < 16; i++) { 764 if (ip6stat[IP6_STAT_SOURCES_OTHERIF + i]) { 765 if (first) { 766 printf("\tsource addresses on a non-outgoing I/F\n"); 767 first = 0; 768 } 769 PRINT_SCOPESTAT(IP6_STAT_SOURCES_OTHERIF + i, i); 770 } 771 } 772 for (first = 1, i = 0; i < 16; i++) { 773 if (ip6stat[IP6_STAT_SOURCES_SAMESCOPE + i]) { 774 if (first) { 775 printf("\tsource addresses of same scope\n"); 776 first = 0; 777 } 778 PRINT_SCOPESTAT(IP6_STAT_SOURCES_SAMESCOPE + i, i); 779 } 780 } 781 for (first = 1, i = 0; i < 16; i++) { 782 if (ip6stat[IP6_STAT_SOURCES_OTHERSCOPE + i]) { 783 if (first) { 784 printf("\tsource addresses of a different scope\n"); 785 first = 0; 786 } 787 PRINT_SCOPESTAT(IP6_STAT_SOURCES_OTHERSCOPE + i, i); 788 } 789 } 790 for (first = 1, i = 0; i < 16; i++) { 791 if (ip6stat[IP6_STAT_SOURCES_DEPRECATED + i]) { 792 if (first) { 793 printf("\tdeprecated source addresses\n"); 794 first = 0; 795 } 796 PRINT_SCOPESTAT(IP6_STAT_SOURCES_DEPRECATED + i, i); 797 } 798 } 799 800 p1(IP6_STAT_FORWARD_CACHEHIT, "\t%llu forward cache hit\n"); 801 p1(IP6_STAT_FORWARD_CACHEMISS, "\t%llu forward cache miss\n"); 802 p(IP6_STAT_PFILDROP_IN, "\t%llu input packet%s dropped by pfil\n"); 803 p(IP6_STAT_PFILDROP_OUT, "\t%llu output packet%s dropped by pfil\n"); 804 #undef p 805 #undef p1 806 } 807 808 /* 809 * Dump IPv6 per-interface statistics based on RFC 2465. 810 */ 811 void 812 ip6_ifstats(const char *ifname) 813 { 814 struct in6_ifreq ifr; 815 int s; 816 #define p(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \ 817 printf(m, (unsigned long long)ifr.ifr_ifru.ifru_stat.f, \ 818 plural(ifr.ifr_ifru.ifru_stat.f)) 819 #define p_5(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \ 820 printf(m, (unsigned long long)ip6stat.f) 821 822 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 823 perror("Warning: socket(AF_INET6)"); 824 return; 825 } 826 827 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 828 printf("ip6 on %s:\n", ifname); 829 830 if (ioctl(s, SIOCGIFSTAT_IN6, (char *)&ifr) < 0) { 831 perror("Warning: ioctl(SIOCGIFSTAT_IN6)"); 832 goto end; 833 } 834 835 p(ifs6_in_receive, "\t%llu total input datagram%s\n"); 836 p(ifs6_in_hdrerr, "\t%llu datagram%s with invalid header received\n"); 837 p(ifs6_in_toobig, "\t%llu datagram%s exceeded MTU received\n"); 838 p(ifs6_in_noroute, "\t%llu datagram%s with no route received\n"); 839 p(ifs6_in_addrerr, "\t%llu datagram%s with invalid dst received\n"); 840 p(ifs6_in_truncated, "\t%llu truncated datagram%s received\n"); 841 p(ifs6_in_protounknown, "\t%llu datagram%s with unknown proto received\n"); 842 p(ifs6_in_discard, "\t%llu input datagram%s discarded\n"); 843 p(ifs6_in_deliver, 844 "\t%llu datagram%s delivered to an upper layer protocol\n"); 845 p(ifs6_out_forward, "\t%llu datagram%s forwarded to this interface\n"); 846 p(ifs6_out_request, 847 "\t%llu datagram%s sent from an upper layer protocol\n"); 848 p(ifs6_out_discard, "\t%llu total discarded output datagram%s\n"); 849 p(ifs6_out_fragok, "\t%llu output datagram%s fragmented\n"); 850 p(ifs6_out_fragfail, "\t%llu output datagram%s failed on fragment\n"); 851 p(ifs6_out_fragcreat, "\t%llu output datagram%s succeeded on fragment\n"); 852 p(ifs6_reass_reqd, "\t%llu incoming datagram%s fragmented\n"); 853 p(ifs6_reass_ok, "\t%llu datagram%s reassembled\n"); 854 p(ifs6_reass_fail, "\t%llu datagram%s failed on reassembling\n"); 855 p(ifs6_in_mcast, "\t%llu multicast datagram%s received\n"); 856 p(ifs6_out_mcast, "\t%llu multicast datagram%s sent\n"); 857 858 end: 859 close(s); 860 861 #undef p 862 #undef p_5 863 } 864 865 static const char *icmp6names[256] = { 866 "#0", 867 "unreach", 868 "packet too big", 869 "time exceed", 870 "parameter problem", 871 "#5", 872 "#6", 873 "#7", 874 "#8", 875 "#9", 876 "#10", 877 "#11", 878 "#12", 879 "#13", 880 "#14", 881 "#15", 882 "#16", 883 "#17", 884 "#18", 885 "#19", 886 "#20", 887 "#21", 888 "#22", 889 "#23", 890 "#24", 891 "#25", 892 "#26", 893 "#27", 894 "#28", 895 "#29", 896 "#30", 897 "#31", 898 "#32", 899 "#33", 900 "#34", 901 "#35", 902 "#36", 903 "#37", 904 "#38", 905 "#39", 906 "#40", 907 "#41", 908 "#42", 909 "#43", 910 "#44", 911 "#45", 912 "#46", 913 "#47", 914 "#48", 915 "#49", 916 "#50", 917 "#51", 918 "#52", 919 "#53", 920 "#54", 921 "#55", 922 "#56", 923 "#57", 924 "#58", 925 "#59", 926 "#60", 927 "#61", 928 "#62", 929 "#63", 930 "#64", 931 "#65", 932 "#66", 933 "#67", 934 "#68", 935 "#69", 936 "#70", 937 "#71", 938 "#72", 939 "#73", 940 "#74", 941 "#75", 942 "#76", 943 "#77", 944 "#78", 945 "#79", 946 "#80", 947 "#81", 948 "#82", 949 "#83", 950 "#84", 951 "#85", 952 "#86", 953 "#87", 954 "#88", 955 "#89", 956 "#80", 957 "#91", 958 "#92", 959 "#93", 960 "#94", 961 "#95", 962 "#96", 963 "#97", 964 "#98", 965 "#99", 966 "#100", 967 "#101", 968 "#102", 969 "#103", 970 "#104", 971 "#105", 972 "#106", 973 "#107", 974 "#108", 975 "#109", 976 "#110", 977 "#111", 978 "#112", 979 "#113", 980 "#114", 981 "#115", 982 "#116", 983 "#117", 984 "#118", 985 "#119", 986 "#120", 987 "#121", 988 "#122", 989 "#123", 990 "#124", 991 "#125", 992 "#126", 993 "#127", 994 "echo", 995 "echo reply", 996 "multicast listener query", 997 "multicast listener report", 998 "multicast listener done", 999 "router solicitation", 1000 "router advertisement", 1001 "neighbor solicitation", 1002 "neighbor advertisement", 1003 "redirect", 1004 "router renumbering", 1005 "node information request", 1006 "node information reply", 1007 "#141", 1008 "#142", 1009 "multicast listener report (v2)", 1010 "home agent discovery request", 1011 "home agent discovery reply", 1012 "mobile prefix solicitation", 1013 "mobile prefix advertisement", 1014 "#148", 1015 "#149", 1016 "#150", 1017 "multicast router advertisement", 1018 "multicast router solicitation", 1019 "multicast router termination", 1020 "#154", 1021 "#155", 1022 "#156", 1023 "#157", 1024 "#158", 1025 "#159", 1026 "#160", 1027 "#161", 1028 "#162", 1029 "#163", 1030 "#164", 1031 "#165", 1032 "#166", 1033 "#167", 1034 "#168", 1035 "#169", 1036 "#170", 1037 "#171", 1038 "#172", 1039 "#173", 1040 "#174", 1041 "#175", 1042 "#176", 1043 "#177", 1044 "#178", 1045 "#179", 1046 "#180", 1047 "#181", 1048 "#182", 1049 "#183", 1050 "#184", 1051 "#185", 1052 "#186", 1053 "#187", 1054 "#188", 1055 "#189", 1056 "#180", 1057 "#191", 1058 "#192", 1059 "#193", 1060 "#194", 1061 "#195", 1062 "#196", 1063 "#197", 1064 "#198", 1065 "#199", 1066 "#200", 1067 "#201", 1068 "#202", 1069 "#203", 1070 "#204", 1071 "#205", 1072 "#206", 1073 "#207", 1074 "#208", 1075 "#209", 1076 "#210", 1077 "#211", 1078 "#212", 1079 "#213", 1080 "#214", 1081 "#215", 1082 "#216", 1083 "#217", 1084 "#218", 1085 "#219", 1086 "#220", 1087 "#221", 1088 "#222", 1089 "#223", 1090 "#224", 1091 "#225", 1092 "#226", 1093 "#227", 1094 "#228", 1095 "#229", 1096 "#230", 1097 "#231", 1098 "#232", 1099 "#233", 1100 "#234", 1101 "#235", 1102 "#236", 1103 "#237", 1104 "#238", 1105 "#239", 1106 "#240", 1107 "#241", 1108 "#242", 1109 "#243", 1110 "#244", 1111 "#245", 1112 "#246", 1113 "#247", 1114 "#248", 1115 "#249", 1116 "#250", 1117 "#251", 1118 "#252", 1119 "#253", 1120 "#254", 1121 "#255", 1122 }; 1123 1124 /* 1125 * Dump ICMPv6 statistics. 1126 */ 1127 void 1128 icmp6_stats(u_long off, const char *name) 1129 { 1130 uint64_t icmp6stat[ICMP6_NSTATS]; 1131 int i, first; 1132 1133 if (use_sysctl) { 1134 size_t size = sizeof(icmp6stat); 1135 1136 if (prog_sysctlbyname("net.inet6.icmp6.stats", icmp6stat, &size, 1137 NULL, 0) == -1) 1138 return; 1139 } else { 1140 warnx("%s stats not available via KVM.", name); 1141 return; 1142 } 1143 1144 printf("%s:\n", name); 1145 1146 #define p(f, m) if (icmp6stat[f] || sflag <= 1) \ 1147 printf(m, (unsigned long long)icmp6stat[f], plural(icmp6stat[f])) 1148 #define p_oerr(f, m) if (icmp6stat[ICMP6_STAT_OUTERRHIST + f] || sflag <= 1) \ 1149 printf(m, (unsigned long long)icmp6stat[ICMP6_STAT_OUTERRHIST + f]) 1150 1151 p(ICMP6_STAT_ERROR, "\t%llu call%s to icmp6_error\n"); 1152 p(ICMP6_STAT_CANTERROR, 1153 "\t%llu error%s not generated because old message was icmp6 or so\n"); 1154 p(ICMP6_STAT_TOOFREQ, 1155 "\t%llu error%s not generated because of rate limitation\n"); 1156 for (first = 1, i = 0; i < 256; i++) 1157 if (icmp6stat[ICMP6_STAT_OUTHIST + i] != 0) { 1158 if (first) { 1159 printf("\tOutput packet histogram:\n"); 1160 first = 0; 1161 } 1162 printf("\t\t%s: %llu\n", icmp6names[i], 1163 (unsigned long long)icmp6stat[ICMP6_STAT_OUTHIST + i]); 1164 } 1165 p(ICMP6_STAT_BADCODE, "\t%llu message%s with bad code fields\n"); 1166 p(ICMP6_STAT_TOOSHORT, "\t%llu message%s < minimum length\n"); 1167 p(ICMP6_STAT_CHECKSUM, "\t%llu bad checksum%s\n"); 1168 p(ICMP6_STAT_BADLEN, "\t%llu message%s with bad length\n"); 1169 for (first = 1, i = 0; i < ICMP6_MAXTYPE; i++) 1170 if (icmp6stat[ICMP6_STAT_INHIST + i] != 0) { 1171 if (first) { 1172 printf("\tInput packet histogram:\n"); 1173 first = 0; 1174 } 1175 printf("\t\t%s: %llu\n", icmp6names[i], 1176 (unsigned long long)icmp6stat[ICMP6_STAT_INHIST + i]); 1177 } 1178 printf("\tHistogram of error messages to be generated:\n"); 1179 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_NOROUTE, "\t\t%llu no route\n"); 1180 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_ADMIN, "\t\t%llu administratively prohibited\n"); 1181 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_BEYONDSCOPE, "\t\t%llu beyond scope\n"); 1182 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_ADDR, "\t\t%llu address unreachable\n"); 1183 p_oerr(ICMP6_ERRSTAT_DST_UNREACH_NOPORT, "\t\t%llu port unreachable\n"); 1184 p_oerr(ICMP6_ERRSTAT_PACKET_TOO_BIG, "\t\t%llu packet too big\n"); 1185 p_oerr(ICMP6_ERRSTAT_TIME_EXCEED_TRANSIT, "\t\t%llu time exceed transit\n"); 1186 p_oerr(ICMP6_ERRSTAT_TIME_EXCEED_REASSEMBLY, "\t\t%llu time exceed reassembly\n"); 1187 p_oerr(ICMP6_ERRSTAT_PARAMPROB_HEADER, "\t\t%llu erroneous header field\n"); 1188 p_oerr(ICMP6_ERRSTAT_PARAMPROB_NEXTHEADER, "\t\t%llu unrecognized next header\n"); 1189 p_oerr(ICMP6_ERRSTAT_PARAMPROB_OPTION, "\t\t%llu unrecognized option\n"); 1190 p_oerr(ICMP6_ERRSTAT_REDIRECT, "\t\t%llu redirect\n"); 1191 p_oerr(ICMP6_ERRSTAT_UNKNOWN, "\t\t%llu unknown\n"); 1192 1193 p(ICMP6_STAT_REFLECT, "\t%llu message response%s generated\n"); 1194 p(ICMP6_STAT_ND_TOOMANYOPT, "\t%llu message%s with too many ND options\n"); 1195 p(ICMP6_STAT_ND_BADOPT, "\t%llu message%s with bad ND options\n"); 1196 p(ICMP6_STAT_BADNS, "\t%llu bad neighbor solicitation message%s\n"); 1197 p(ICMP6_STAT_BADNA, "\t%llu bad neighbor advertisement message%s\n"); 1198 p(ICMP6_STAT_BADRS, "\t%llu bad router solicitation message%s\n"); 1199 p(ICMP6_STAT_BADRA, "\t%llu bad router advertisement message%s\n"); 1200 p(ICMP6_STAT_DROPPED_RAROUTE, "\t%llu router advertisement route%s dropped\n"); 1201 p(ICMP6_STAT_BADREDIRECT, "\t%llu bad redirect message%s\n"); 1202 p(ICMP6_STAT_PMTUCHG, "\t%llu path MTU change%s\n"); 1203 #undef p 1204 #undef p_oerr 1205 } 1206 1207 /* 1208 * Dump ICMPv6 per-interface statistics based on RFC 2466. 1209 */ 1210 void 1211 icmp6_ifstats(const char *ifname) 1212 { 1213 struct in6_ifreq ifr; 1214 int s; 1215 #define p(f, m) if (ifr.ifr_ifru.ifru_icmp6stat.f || sflag <= 1) \ 1216 printf(m, (unsigned long long)ifr.ifr_ifru.ifru_icmp6stat.f, \ 1217 plural(ifr.ifr_ifru.ifru_icmp6stat.f)) 1218 1219 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 1220 perror("Warning: socket(AF_INET6)"); 1221 return; 1222 } 1223 1224 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 1225 printf("icmp6 on %s:\n", ifname); 1226 1227 if (ioctl(s, SIOCGIFSTAT_ICMP6, (char *)&ifr) < 0) { 1228 perror("Warning: ioctl(SIOCGIFSTAT_ICMP6)"); 1229 goto end; 1230 } 1231 1232 p(ifs6_in_msg, "\t%llu total input message%s\n"); 1233 p(ifs6_in_error, "\t%llu total input error message%s\n"); 1234 p(ifs6_in_dstunreach, "\t%llu input destination unreachable error%s\n"); 1235 p(ifs6_in_adminprohib, "\t%llu input administratively prohibited error%s\n"); 1236 p(ifs6_in_timeexceed, "\t%llu input time exceeded error%s\n"); 1237 p(ifs6_in_paramprob, "\t%llu input parameter problem error%s\n"); 1238 p(ifs6_in_pkttoobig, "\t%llu input packet too big error%s\n"); 1239 p(ifs6_in_echo, "\t%llu input echo request%s\n"); 1240 p(ifs6_in_echoreply, "\t%llu input echo reply%s\n"); 1241 p(ifs6_in_routersolicit, "\t%llu input router solicitation%s\n"); 1242 p(ifs6_in_routeradvert, "\t%llu input router advertisement%s\n"); 1243 p(ifs6_in_neighborsolicit, "\t%llu input neighbor solicitation%s\n"); 1244 p(ifs6_in_neighboradvert, "\t%llu input neighbor advertisement%s\n"); 1245 p(ifs6_in_redirect, "\t%llu input redirect%s\n"); 1246 p(ifs6_in_mldquery, "\t%llu input MLD query%s\n"); 1247 p(ifs6_in_mldreport, "\t%llu input MLD report%s\n"); 1248 p(ifs6_in_mlddone, "\t%llu input MLD done%s\n"); 1249 1250 p(ifs6_out_msg, "\t%llu total output message%s\n"); 1251 p(ifs6_out_error, "\t%llu total output error message%s\n"); 1252 p(ifs6_out_dstunreach, "\t%llu output destination unreachable error%s\n"); 1253 p(ifs6_out_adminprohib, "\t%llu output administratively prohibited error%s\n"); 1254 p(ifs6_out_timeexceed, "\t%llu output time exceeded error%s\n"); 1255 p(ifs6_out_paramprob, "\t%llu output parameter problem error%s\n"); 1256 p(ifs6_out_pkttoobig, "\t%llu output packet too big error%s\n"); 1257 p(ifs6_out_echo, "\t%llu output echo request%s\n"); 1258 p(ifs6_out_echoreply, "\t%llu output echo reply%s\n"); 1259 p(ifs6_out_routersolicit, "\t%llu output router solicitation%s\n"); 1260 p(ifs6_out_routeradvert, "\t%llu output router advertisement%s\n"); 1261 p(ifs6_out_neighborsolicit, "\t%llu output neighbor solicitation%s\n"); 1262 p(ifs6_out_neighboradvert, "\t%llu output neighbor advertisement%s\n"); 1263 p(ifs6_out_redirect, "\t%llu output redirect%s\n"); 1264 p(ifs6_out_mldquery, "\t%llu output MLD query%s\n"); 1265 p(ifs6_out_mldreport, "\t%llu output MLD report%s\n"); 1266 p(ifs6_out_mlddone, "\t%llu output MLD done%s\n"); 1267 1268 end: 1269 close(s); 1270 #undef p 1271 } 1272 1273 /* 1274 * Dump PIM statistics structure. 1275 */ 1276 void 1277 pim6_stats(u_long off, const char *name) 1278 { 1279 uint64_t pim6stat[PIM6_NSTATS]; 1280 1281 if (use_sysctl) { 1282 size_t size = sizeof(pim6stat); 1283 1284 if (prog_sysctlbyname("net.inet6.pim6.stats", pim6stat, &size, 1285 NULL, 0) == -1) 1286 return; 1287 } else { 1288 warnx("%s stats not available via KVM.", name); 1289 return; 1290 } 1291 printf("%s:\n", name); 1292 1293 #define p(f, m) if (pim6stat[f] || sflag <= 1) \ 1294 printf(m, (unsigned long long)pim6stat[f], plural(pim6stat[f])) 1295 p(PIM6_STAT_RCV_TOTAL, "\t%llu message%s received\n"); 1296 p(PIM6_STAT_RCV_TOOSHORT, "\t%llu message%s received with too few bytes\n"); 1297 p(PIM6_STAT_RCV_BADSUM, "\t%llu message%s received with bad checksum\n"); 1298 p(PIM6_STAT_RCV_BADVERSION, "\t%llu message%s received with bad version\n"); 1299 p(PIM6_STAT_RCV_REGISTERS, "\t%llu register%s received\n"); 1300 p(PIM6_STAT_RCV_BADREGISTERS, "\t%llu bad register%s received\n"); 1301 p(PIM6_STAT_SND_REGISTERS, "\t%llu register%s sent\n"); 1302 #undef p 1303 } 1304 1305 /* 1306 * Dump raw ip6 statistics structure. 1307 */ 1308 void 1309 rip6_stats(u_long off, const char *name) 1310 { 1311 uint64_t rip6stat[RIP6_NSTATS]; 1312 u_quad_t delivered; 1313 1314 if (use_sysctl) { 1315 size_t size = sizeof(rip6stat); 1316 1317 if (prog_sysctlbyname("net.inet6.raw6.stats", rip6stat, &size, 1318 NULL, 0) == -1) 1319 return; 1320 } else { 1321 warnx("%s stats not available via KVM.", name); 1322 return; 1323 } 1324 printf("%s:\n", name); 1325 1326 #define p(f, m) if (rip6stat[f] || sflag <= 1) \ 1327 printf(m, (unsigned long long)rip6stat[f], plural(rip6stat[f])) 1328 p(RIP6_STAT_IPACKETS, "\t%llu message%s received\n"); 1329 p(RIP6_STAT_ISUM, "\t%llu checksum calculation%s on inbound\n"); 1330 p(RIP6_STAT_BADSUM, "\t%llu message%s with bad checksum\n"); 1331 p(RIP6_STAT_NOSOCK, "\t%llu message%s dropped due to no socket\n"); 1332 p(RIP6_STAT_NOSOCKMCAST, 1333 "\t%llu multicast message%s dropped due to no socket\n"); 1334 p(RIP6_STAT_FULLSOCK, 1335 "\t%llu message%s dropped due to full socket buffers\n"); 1336 delivered = rip6stat[RIP6_STAT_IPACKETS] - 1337 rip6stat[RIP6_STAT_BADSUM] - 1338 rip6stat[RIP6_STAT_NOSOCK] - 1339 rip6stat[RIP6_STAT_NOSOCKMCAST] - 1340 rip6stat[RIP6_STAT_FULLSOCK]; 1341 if (delivered || sflag <= 1) 1342 printf("\t%llu delivered\n", (unsigned long long)delivered); 1343 p(RIP6_STAT_OPACKETS, "\t%llu datagram%s output\n"); 1344 #undef p 1345 } 1346 1347 /* 1348 * Pretty print an Internet address (net address + port). 1349 * Take numeric_addr and numeric_port into consideration. 1350 */ 1351 void 1352 inet6print(const struct in6_addr *in6, int port, const char *proto) 1353 { 1354 #define GETSERVBYPORT6(port, proto, ret)\ 1355 do {\ 1356 if (strcmp((proto), "tcp6") == 0)\ 1357 (ret) = getservbyport((int)(port), "tcp");\ 1358 else if (strcmp((proto), "udp6") == 0)\ 1359 (ret) = getservbyport((int)(port), "udp");\ 1360 else\ 1361 (ret) = getservbyport((int)(port), (proto));\ 1362 } while (0) 1363 struct servent *sp = 0; 1364 char line[80], *cp; 1365 int lwidth; 1366 1367 lwidth = Aflag ? 12 : 16; 1368 if (vflag && lwidth < (int)strlen(inet6name(in6))) 1369 lwidth = strlen(inet6name(in6)); 1370 snprintf(line, sizeof(line), "%.*s.", lwidth, inet6name(in6)); 1371 cp = strchr(line, '\0'); 1372 if (!numeric_port && port) 1373 GETSERVBYPORT6(port, proto, sp); 1374 if (sp || port == 0) 1375 snprintf(cp, sizeof(line) - (cp - line), 1376 "%s", sp ? sp->s_name : "*"); 1377 else 1378 snprintf(cp, sizeof(line) - (cp - line), 1379 "%d", ntohs((u_short)port)); 1380 lwidth = Aflag ? 18 : 22; 1381 if (vflag && lwidth < (int)strlen(line)) 1382 lwidth = strlen(line); 1383 printf(" %-*.*s", lwidth, lwidth, line); 1384 } 1385 1386 /* 1387 * Construct an Internet address representation. 1388 * If the numeric_addr has been supplied, give 1389 * numeric value, otherwise try for symbolic name. 1390 */ 1391 1392 char * 1393 inet6name(const struct in6_addr *in6p) 1394 { 1395 char *cp; 1396 static char line[NI_MAXHOST]; 1397 struct hostent *hp; 1398 static char domain[MAXHOSTNAMELEN + 1]; 1399 static int first = 1; 1400 char hbuf[NI_MAXHOST]; 1401 struct sockaddr_in6 sin6; 1402 const int niflag = NI_NUMERICHOST; 1403 1404 if (first && !numeric_addr) { 1405 first = 0; 1406 if (gethostname(domain, MAXHOSTNAMELEN) == 0 && 1407 (cp = strchr(domain, '.'))) 1408 (void) strlcpy(domain, cp + 1, sizeof(domain)); 1409 else 1410 domain[0] = 0; 1411 } 1412 cp = 0; 1413 if (!numeric_addr && !IN6_IS_ADDR_UNSPECIFIED(in6p)) { 1414 hp = gethostbyaddr((const char *)in6p, sizeof(*in6p), AF_INET6); 1415 if (hp) { 1416 if ((cp = strchr(hp->h_name, '.')) && 1417 !strcmp(cp + 1, domain)) 1418 *cp = 0; 1419 cp = hp->h_name; 1420 } 1421 } 1422 if (IN6_IS_ADDR_UNSPECIFIED(in6p)) 1423 strlcpy(line, "*", sizeof(line)); 1424 else if (cp) 1425 strlcpy(line, cp, sizeof(line)); 1426 else { 1427 memset(&sin6, 0, sizeof(sin6)); 1428 sin6.sin6_len = sizeof(sin6); 1429 sin6.sin6_family = AF_INET6; 1430 sin6.sin6_addr = *in6p; 1431 inet6_getscopeid(&sin6, INET6_IS_ADDR_LINKLOCAL| 1432 INET6_IS_ADDR_MC_LINKLOCAL); 1433 if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, 1434 hbuf, sizeof(hbuf), NULL, 0, niflag) != 0) 1435 strlcpy(hbuf, "?", sizeof(hbuf)); 1436 strlcpy(line, hbuf, sizeof(line)); 1437 } 1438 return (line); 1439 } 1440 1441 /* 1442 * Dump the contents of a TCP6 PCB. 1443 */ 1444 void 1445 tcp6_dump(u_long off, const char *name, u_long pcbaddr) 1446 { 1447 callout_impl_t *ci; 1448 int i, hardticks; 1449 struct kinfo_pcb *pcblist; 1450 #ifdef TCP6 1451 #define mypcb tcp6cb 1452 #else 1453 #define mypcb tcpcb 1454 #endif 1455 size_t j, len; 1456 1457 if (use_sysctl) 1458 pcblist = getpcblist_sysctl(name, &len); 1459 else 1460 pcblist = getpcblist_kmem(off, name, &len); 1461 1462 for (j = 0; j < len; j++) 1463 if (pcblist[j].ki_ppcbaddr == pcbaddr) 1464 break; 1465 free(pcblist); 1466 1467 if (j == len) 1468 errx(1, "0x%lx is not a valid pcb address", pcbaddr); 1469 1470 kread(pcbaddr, (char *)&mypcb, sizeof(mypcb)); 1471 hardticks = get_hardticks(); 1472 1473 printf("TCP Protocol Control Block at 0x%08lx:\n\n", pcbaddr); 1474 printf("Timers:\n"); 1475 for (i = 0; i < TCP6T_NTIMERS; i++) { 1476 char buf[128]; 1477 ci = (callout_impl_t *)&tcpcb.t_timer[i]; 1478 snprintb(buf, sizeof(buf), CALLOUT_FMT, ci->c_flags); 1479 printf("\t%s\t%s", tcptimers[i], buf); 1480 if (ci->c_flags & CALLOUT_PENDING) 1481 printf("\t%d\n", ci->c_time - hardticks); 1482 else 1483 printf("\n"); 1484 } 1485 printf("\n\n"); 1486 1487 if (mypcb.t_state < 0 || mypcb.t_state >= TCP6_NSTATES) 1488 printf("State: %d", mypcb.t_state); 1489 else 1490 printf("State: %s", tcp6states[mypcb.t_state]); 1491 printf(", flags 0x%x, in6pcb 0x%lx\n\n", mypcb.t_flags, 1492 (u_long)mypcb.t_in6pcb); 1493 1494 printf("rxtshift %d, rxtcur %d, dupacks %d\n", mypcb.t_rxtshift, 1495 mypcb.t_rxtcur, mypcb.t_dupacks); 1496 #ifdef TCP6 1497 printf("peermaxseg %u, maxseg %u, force %d\n\n", mypcb.t_peermaxseg, 1498 mypcb.t_maxseg, mypcb.t_force); 1499 #else 1500 printf("peermss %u, ourmss %u, segsz %u, segqlen %u\n\n", 1501 tcpcb.t_peermss, tcpcb.t_ourmss, tcpcb.t_segsz, tcpcb.t_segqlen); 1502 #endif 1503 1504 printf("snd_una %u, snd_nxt %u, snd_up %u\n", 1505 mypcb.snd_una, mypcb.snd_nxt, mypcb.snd_up); 1506 printf("snd_wl1 %u, snd_wl2 %u, iss %u, snd_wnd %llu\n\n", 1507 mypcb.snd_wl1, mypcb.snd_wl2, mypcb.iss, 1508 (unsigned long long)mypcb.snd_wnd); 1509 1510 printf("rcv_wnd %llu, rcv_nxt %u, rcv_up %u, irs %u\n\n", 1511 (unsigned long long)mypcb.rcv_wnd, mypcb.rcv_nxt, 1512 mypcb.rcv_up, mypcb.irs); 1513 1514 printf("rcv_adv %u, snd_max %u, snd_cwnd %llu, snd_ssthresh %llu\n", 1515 mypcb.rcv_adv, mypcb.snd_max, (unsigned long long)mypcb.snd_cwnd, 1516 (unsigned long long)mypcb.snd_ssthresh); 1517 1518 #ifdef TCP6 1519 printf("idle %d, rtt %d, " mypcb.t_idle, mypcb.t_rtt); 1520 #else 1521 printf("rcvtime %u, rtttime %u, ", tcpcb.t_rcvtime, tcpcb.t_rtttime); 1522 #endif 1523 1524 printf("rtseq %u, srtt %d, rttvar %d, rttmin %d, " 1525 "max_sndwnd %llu\n\n", mypcb.t_rtseq, 1526 mypcb.t_srtt, mypcb.t_rttvar, mypcb.t_rttmin, 1527 (unsigned long long)mypcb.max_sndwnd); 1528 1529 printf("oobflags %d, iobc %d, softerror %d\n\n", mypcb.t_oobflags, 1530 mypcb.t_iobc, mypcb.t_softerror); 1531 1532 printf("snd_scale %d, rcv_scale %d, req_r_scale %d, req_s_scale %d\n", 1533 mypcb.snd_scale, mypcb.rcv_scale, mypcb.request_r_scale, 1534 mypcb.requested_s_scale); 1535 printf("ts_recent %u, ts_regent_age %d, last_ack_sent %u\n", 1536 mypcb.ts_recent, mypcb.ts_recent_age, mypcb.last_ack_sent); 1537 } 1538 1539 #endif /*INET6*/ 1540