1 /* 2 * Copyright (c) 1983, 1988, 1993, 1995 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)inet.c 8.5 (Berkeley) 5/24/95 34 * $FreeBSD: src/usr.bin/netstat/inet.c,v 1.37.2.11 2003/11/27 14:46:49 ru Exp $ 35 */ 36 37 #include <sys/param.h> 38 #include <sys/queue.h> 39 #include <sys/socket.h> 40 #include <sys/socketvar.h> 41 #include <sys/sysctl.h> 42 #include <sys/protosw.h> 43 #include <sys/time.h> 44 45 #include <net/route.h> 46 #include <netinet/in.h> 47 #include <netinet/in_systm.h> 48 #include <netinet/ip.h> 49 #include <netinet/ip_carp.h> 50 #ifdef INET6 51 #include <netinet/ip6.h> 52 #endif /* INET6 */ 53 #include <netinet/in_pcb.h> 54 #include <netinet/ip_icmp.h> 55 #include <netinet/icmp_var.h> 56 #include <netinet/igmp_var.h> 57 #include <netinet/ip_var.h> 58 #include <netinet/pim_var.h> 59 #include <netinet/tcp.h> 60 #include <netinet/tcpip.h> 61 #include <netinet/tcp_seq.h> 62 #define TCPSTATES 63 #include <netinet/tcp_fsm.h> 64 #include <netinet/tcp_timer.h> 65 #include <netinet/tcp_var.h> 66 #include <netinet/tcp_debug.h> 67 #include <netinet/udp.h> 68 #include <netinet/udp_var.h> 69 70 #include <arpa/inet.h> 71 #include <err.h> 72 #include <errno.h> 73 #include <libutil.h> 74 #include <netdb.h> 75 #include <stdio.h> 76 #include <stdlib.h> 77 #include <string.h> 78 #include <unistd.h> 79 #include "netstat.h" 80 81 char *inetname (struct in_addr *); 82 void inetprint (struct in_addr *, int, const char *, int); 83 #ifdef INET6 84 extern void inet6print (struct in6_addr *, int, const char *, int); 85 static int udp_done, tcp_done; 86 #endif /* INET6 */ 87 88 /* 89 * Print a summary of connections related to an Internet 90 * protocol. For TCP, also give state of connection. 91 * Listening processes (aflag) are suppressed unless the 92 * -a (all) flag is specified. 93 */ 94 95 static int ppr_first = 1; 96 static void outputpcb(int proto, const char *name, struct inpcb *inp, struct xsocket *so, struct tcpcb *tp); 97 98 void 99 protopr(u_long proto, const char *name, int af1 __unused) 100 { 101 int istcp; 102 void *buf; 103 const char *mibvar; 104 size_t i, len; 105 106 istcp = 0; 107 switch (proto) { 108 case IPPROTO_TCP: 109 #ifdef INET6 110 if (tcp_done != 0) 111 return; 112 else 113 tcp_done = 1; 114 #endif 115 istcp = 1; 116 mibvar = "net.inet.tcp.pcblist"; 117 break; 118 case IPPROTO_UDP: 119 #ifdef INET6 120 if (udp_done != 0) 121 return; 122 else 123 udp_done = 1; 124 #endif 125 mibvar = "net.inet.udp.pcblist"; 126 break; 127 case IPPROTO_DIVERT: 128 mibvar = "net.inet.divert.pcblist"; 129 break; 130 default: 131 mibvar = "net.inet.raw.pcblist"; 132 break; 133 } 134 len = 0; 135 if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) { 136 if (errno != ENOENT) 137 warn("sysctl: %s", mibvar); 138 return; 139 } 140 if (len == 0) 141 return; 142 if ((buf = malloc(len)) == NULL) { 143 warn("malloc %lu bytes", (u_long)len); 144 return; 145 } 146 if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) { 147 warn("sysctl: %s", mibvar); 148 free(buf); 149 return; 150 } 151 152 if (istcp) { 153 struct xtcpcb *tcp = buf; 154 len /= sizeof(*tcp); 155 for (i = 0; i < len; i++) { 156 if (tcp[i].xt_len != sizeof(*tcp)) 157 break; 158 outputpcb(proto, name, &tcp[i].xt_inp, 159 &tcp[i].xt_socket, &tcp[i].xt_tp); 160 } 161 } else { 162 struct xinpcb *in = buf; 163 len /= sizeof(*in); 164 for (i = 0; i < len; i++) { 165 if (in[i].xi_len != sizeof(*in)) 166 break; 167 outputpcb(proto, name, &in[i].xi_inp, 168 &in[i].xi_socket, NULL); 169 } 170 } 171 free(buf); 172 } 173 174 static void 175 outputpcb(int proto, const char *name, struct inpcb *inp, struct xsocket *so, struct tcpcb *tp) 176 { 177 const char *vchar; 178 static struct clockinfo clockinfo; 179 180 if (clockinfo.hz == 0) { 181 size_t size = sizeof(clockinfo); 182 sysctlbyname("kern.clockrate", &clockinfo, &size, NULL, 0); 183 if (clockinfo.hz == 0) 184 clockinfo.hz = 100; 185 } 186 187 /* Ignore sockets for protocols other than the desired one. */ 188 if (so->xso_protocol != (int)proto) 189 return; 190 191 if ((af == AF_INET && (inp->inp_vflag & INP_IPV4) == 0) 192 #ifdef INET6 193 || (af == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0) 194 #endif /* INET6 */ 195 || (af == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0 196 #ifdef INET6 197 && (inp->inp_vflag & INP_IPV6) == 0 198 #endif /* INET6 */ 199 )) 200 ) { 201 return; 202 } 203 if (!aflag && ( 204 (proto == IPPROTO_TCP && tp->t_state == TCPS_LISTEN) || 205 (af == AF_INET && inet_lnaof(inp->inp_laddr) == INADDR_ANY) 206 #ifdef INET6 207 || (af == AF_INET6 && IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) 208 #endif /* INET6 */ 209 || (af == AF_UNSPEC && (((inp->inp_vflag & INP_IPV4) != 0 && 210 inet_lnaof(inp->inp_laddr) == INADDR_ANY) 211 #ifdef INET6 212 || ((inp->inp_vflag & INP_IPV6) != 0 && 213 IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) 214 #endif 215 )) 216 )) { 217 return; 218 } 219 220 if (ppr_first) { 221 if (!Lflag) { 222 printf("Active Internet connections"); 223 if (aflag) 224 printf(" (including servers)"); 225 } else { 226 printf("Current listen queue sizes " 227 "(qlen/incqlen/maxqlen)"); 228 } 229 putchar('\n'); 230 if (Aflag) 231 printf("%-8.8s ", "Socket"); 232 if (Pflag) 233 printf("%8.8s %8.8s %8.8s ", "TxWin", "Unacked", "RTT/ms"); 234 if (Lflag) { 235 printf("%-5.5s %-14.14s %-22.22s\n", 236 "Proto", "Listen", "Local Address"); 237 } else { 238 printf((Aflag && !Wflag) ? 239 "%-5.5s %-6.6s %-6.6s %-17.17s %-17.17s %s\n" : 240 "%-5.5s %-6.6s %-6.6s %-21.21s %-21.21s %s\n", 241 "Proto", "Recv-Q", "Send-Q", 242 "Local Address", "Foreign Address", 243 "(state)"); 244 } 245 ppr_first = 0; 246 } 247 if (Lflag && so->so_qlimit == 0) 248 return; 249 if (Aflag) { 250 if (tp) 251 printf("%8lx ", (u_long)inp->inp_ppcb); 252 else 253 printf("%8lx ", (u_long)so->so_pcb); 254 } 255 if (Pflag) { 256 if (tp) { 257 int window = MIN(tp->snd_cwnd, tp->snd_bwnd); 258 if (window == 1073725440) 259 printf("%8s ", "max"); 260 else 261 printf("%8d ", (int)MIN(tp->snd_cwnd, tp->snd_bwnd)); 262 printf("%8d ", (int)(tp->snd_max - tp->snd_una)); 263 if (tp->t_srtt == 0) 264 printf("%8s ", "-"); 265 else 266 printf("%8.3f ", (double)tp->t_srtt * 1000.0 / TCP_RTT_SCALE / clockinfo.hz); 267 } else { 268 printf("%8s %8s %8s ", "-", "-", "-"); 269 } 270 } 271 #ifdef INET6 272 if ((inp->inp_vflag & INP_IPV6) != 0) 273 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ? "46" : "6 "; 274 else 275 #endif 276 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ? "4 " : " "; 277 278 printf("%-3.3s%-2.2s ", name, vchar); 279 if (Lflag) { 280 char buf[15]; 281 282 snprintf(buf, sizeof(buf), "%d/%d/%d", so->so_qlen, 283 so->so_incqlen, so->so_qlimit); 284 printf("%-13.13s ", buf); 285 } else if (Bflag) { 286 printf("%6ld %6ld ", 287 so->so_rcv.sb_hiwat, 288 so->so_snd.sb_hiwat); 289 } else { 290 printf("%6ld %6ld ", 291 so->so_rcv.sb_cc, 292 so->so_snd.sb_cc); 293 } 294 if (numeric_port) { 295 if (inp->inp_vflag & INP_IPV4) { 296 inetprint(&inp->inp_laddr, (int)inp->inp_lport, 297 name, 1); 298 if (!Lflag) 299 inetprint(&inp->inp_faddr, 300 (int)inp->inp_fport, name, 1); 301 } 302 #ifdef INET6 303 else if (inp->inp_vflag & INP_IPV6) { 304 inet6print(&inp->in6p_laddr, 305 (int)inp->inp_lport, name, 1); 306 if (!Lflag) 307 inet6print(&inp->in6p_faddr, 308 (int)inp->inp_fport, name, 1); 309 } /* else nothing printed now */ 310 #endif /* INET6 */ 311 } else if (inp->inp_flags & INP_ANONPORT) { 312 if (inp->inp_vflag & INP_IPV4) { 313 inetprint(&inp->inp_laddr, (int)inp->inp_lport, 314 name, 1); 315 if (!Lflag) 316 inetprint(&inp->inp_faddr, 317 (int)inp->inp_fport, name, 0); 318 } 319 #ifdef INET6 320 else if (inp->inp_vflag & INP_IPV6) { 321 inet6print(&inp->in6p_laddr, 322 (int)inp->inp_lport, name, 1); 323 if (!Lflag) 324 inet6print(&inp->in6p_faddr, 325 (int)inp->inp_fport, name, 0); 326 } /* else nothing printed now */ 327 #endif /* INET6 */ 328 } else { 329 if (inp->inp_vflag & INP_IPV4) { 330 inetprint(&inp->inp_laddr, (int)inp->inp_lport, 331 name, 0); 332 if (!Lflag) 333 inetprint(&inp->inp_faddr, 334 (int)inp->inp_fport, name, 335 inp->inp_lport != 336 inp->inp_fport); 337 } 338 #ifdef INET6 339 else if (inp->inp_vflag & INP_IPV6) { 340 inet6print(&inp->in6p_laddr, 341 (int)inp->inp_lport, name, 0); 342 if (!Lflag) 343 inet6print(&inp->in6p_faddr, 344 (int)inp->inp_fport, name, 345 inp->inp_lport != 346 inp->inp_fport); 347 } /* else nothing printed now */ 348 #endif /* INET6 */ 349 } 350 if (tp && !Lflag) { 351 if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES) 352 printf("%d", tp->t_state); 353 else { 354 printf("%s", tcpstates[tp->t_state]); 355 #if defined(TF_NEEDSYN) && defined(TF_NEEDFIN) 356 /* Show T/TCP `hidden state' */ 357 if (tp->t_flags & (TF_NEEDSYN|TF_NEEDFIN)) 358 putchar('*'); 359 #endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */ 360 } 361 } 362 putchar('\n'); 363 } 364 365 366 367 #define CPU_STATS_FUNC(proto,type) \ 368 static void \ 369 proto ##_stats_agg(type *ary, type *ttl, int cpucnt) \ 370 { \ 371 int i, off, siz; \ 372 siz = sizeof(type); \ 373 \ 374 if (!ary && !ttl) \ 375 return; \ 376 \ 377 bzero(ttl, siz); \ 378 if (cpucnt == 1) { \ 379 *ttl = ary[0]; \ 380 } else { \ 381 for (i = 0; i < cpucnt; ++i) { \ 382 for (off = 0; off < siz; off += sizeof(u_long)) { \ 383 *(u_long *)((char *)(*(&ttl)) + off) += \ 384 *(u_long *)((char *)&ary[i] + off); \ 385 } \ 386 } \ 387 } \ 388 } 389 CPU_STATS_FUNC(tcp, struct tcp_stats); 390 CPU_STATS_FUNC(ip, struct ip_stats); 391 392 /* 393 * Dump TCP statistics structure. 394 */ 395 void 396 tcp_stats(u_long off __unused, const char *name, int af1 __unused) 397 { 398 struct tcp_stats tcpstat, *stattmp; 399 struct tcp_stats zerostat[SMP_MAXCPU]; 400 size_t len = sizeof(struct tcp_stats) * SMP_MAXCPU; 401 int cpucnt; 402 403 if (zflag) 404 memset(zerostat, 0, len); 405 406 if ((stattmp = malloc(len)) == NULL) { 407 return; 408 } else { 409 if (sysctlbyname("net.inet.tcp.stats", stattmp, &len, 410 zflag ? zerostat : NULL, zflag ? len : 0) < 0) { 411 warn("sysctl: net.inet.tcp.stats"); 412 free(stattmp); 413 return; 414 } else { 415 if ((stattmp = realloc(stattmp, len)) == NULL) { 416 warn("tcp_stats"); 417 return; 418 } 419 } 420 } 421 cpucnt = len / sizeof(struct tcp_stats); 422 tcp_stats_agg(stattmp, &tcpstat, cpucnt); 423 424 #ifdef INET6 425 if (tcp_done != 0) 426 return; 427 else 428 tcp_done = 1; 429 #endif 430 431 printf ("%s:\n", name); 432 433 #define p(f, m) if (tcpstat.f || sflag <= 1) \ 434 printf(m, tcpstat.f, plural(tcpstat.f)) 435 #define p1a(f, m) if (tcpstat.f || sflag <= 1) \ 436 printf(m, tcpstat.f) 437 #define p2(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \ 438 printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2, plural(tcpstat.f2)) 439 #define p2a(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \ 440 printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2) 441 #define p3(f, m) if (tcpstat.f || sflag <= 1) \ 442 printf(m, tcpstat.f, plurales(tcpstat.f)) 443 444 p(tcps_sndtotal, "\t%lu packet%s sent\n"); 445 p2(tcps_sndpack,tcps_sndbyte, 446 "\t\t%lu data packet%s (%lu byte%s)\n"); 447 p2(tcps_sndrexmitpack, tcps_sndrexmitbyte, 448 "\t\t%lu data packet%s (%lu byte%s) retransmitted\n"); 449 p2(tcps_sndsackrtopack, tcps_sndsackrtobyte, 450 "\t\t%lu data packet%s (%lu byte%s) retransmitted by SACK\n"); 451 p2(tcps_sndsackpack, tcps_sndsackbyte, 452 "\t\t%lu data packet%s (%lu byte%s) sent by SACK recovery\n"); 453 p2a(tcps_sndfastrexmit, tcps_sndearlyrexmit, 454 "\t\t%lu Fast Retransmit%s (%lu early)\n"); 455 p(tcps_sndlimited, "\t\t%lu packet%s sent by Limited Transmit\n"); 456 p2(tcps_sndrtobad, tcps_eifelresponse, 457 "\t\t%lu spurious RTO retransmit%s (%lu Eifel-response%s)\n"); 458 p2a(tcps_sndfastrexmitbad, tcps_sndearlyrexmitbad, 459 "\t\t%lu spurious Fast Retransmit%s (%lu early)\n"); 460 p2a(tcps_eifeldetected, tcps_rttcantdetect, 461 "\t\t%lu Eifel-detected spurious retransmit%s (%lu non-RTT)\n"); 462 p(tcps_rttdetected, "\t\t%lu RTT-detected spurious retransmit%s\n"); 463 p(tcps_mturesent, "\t\t%lu resend%s initiated by MTU discovery\n"); 464 p(tcps_sndsackopt, "\t\t%lu SACK option%s sent\n"); 465 p(tcps_snddsackopt, "\t\t%lu D-SACK option%s sent\n"); 466 p2a(tcps_sndacks, tcps_delack, 467 "\t\t%lu ack-only packet%s (%lu delayed)\n"); 468 p(tcps_sndurg, "\t\t%lu URG only packet%s\n"); 469 p(tcps_sndprobe, "\t\t%lu window probe packet%s\n"); 470 p(tcps_sndwinup, "\t\t%lu window update packet%s\n"); 471 p(tcps_sndctrl, "\t\t%lu control packet%s\n"); 472 p(tcps_rcvtotal, "\t%lu packet%s received\n"); 473 p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t%lu ack%s (for %lu byte%s)\n"); 474 p(tcps_rcvdupack, "\t\t%lu duplicate ack%s\n"); 475 p(tcps_rcvacktoomuch, "\t\t%lu ack%s for unsent data\n"); 476 p2(tcps_rcvpack, tcps_rcvbyte, 477 "\t\t%lu packet%s (%lu byte%s) received in-sequence\n"); 478 p2(tcps_rcvduppack, tcps_rcvdupbyte, 479 "\t\t%lu completely duplicate packet%s (%lu byte%s)\n"); 480 p(tcps_pawsdrop, "\t\t%lu old duplicate packet%s\n"); 481 p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte, 482 "\t\t%lu packet%s with some dup. data (%lu byte%s duped)\n"); 483 p2(tcps_rcvoopack, tcps_rcvoobyte, 484 "\t\t%lu out-of-order packet%s (%lu byte%s)\n"); 485 p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin, 486 "\t\t%lu packet%s (%lu byte%s) of data after window\n"); 487 p(tcps_rcvwinprobe, "\t\t%lu window probe%s\n"); 488 p(tcps_rcvwinupd, "\t\t%lu window update packet%s\n"); 489 p(tcps_rcvafterclose, "\t\t%lu packet%s received after close\n"); 490 p(tcps_rcvbadsum, "\t\t%lu discarded for bad checksum%s\n"); 491 p(tcps_rcvbadoff, "\t\t%lu discarded for bad header offset field%s\n"); 492 p1a(tcps_rcvshort, "\t\t%lu discarded because packet too short\n"); 493 p(tcps_rcvbadsackopt, "\t\t%lu bad SACK option%s\n"); 494 p(tcps_connattempt, "\t%lu connection request%s\n"); 495 p(tcps_accepts, "\t%lu connection accept%s\n"); 496 p(tcps_badsyn, "\t%lu bad connection attempt%s\n"); 497 p(tcps_listendrop, "\t%lu listen queue overflow%s\n"); 498 p(tcps_connects, "\t%lu connection%s established (including accepts)\n"); 499 p2(tcps_closed, tcps_drops, 500 "\t%lu connection%s closed (including %lu drop%s)\n"); 501 p(tcps_cachedrtt, "\t\t%lu connection%s updated cached RTT on close\n"); 502 p(tcps_cachedrttvar, 503 "\t\t%lu connection%s updated cached RTT variance on close\n"); 504 p(tcps_cachedssthresh, 505 "\t\t%lu connection%s updated cached ssthresh on close\n"); 506 p(tcps_conndrops, "\t%lu embryonic connection%s dropped\n"); 507 p2(tcps_rttupdated, tcps_segstimed, 508 "\t%lu segment%s updated rtt (of %lu attempt%s)\n"); 509 p(tcps_rexmttimeo, "\t%lu retransmit timeout%s\n"); 510 p(tcps_timeoutdrop, "\t\t%lu connection%s dropped by rexmit timeout\n"); 511 p(tcps_persisttimeo, "\t%lu persist timeout%s\n"); 512 p(tcps_persistdrop, "\t\t%lu connection%s dropped by persist timeout\n"); 513 p(tcps_keeptimeo, "\t%lu keepalive timeout%s\n"); 514 p(tcps_keepprobe, "\t\t%lu keepalive probe%s sent\n"); 515 p(tcps_keepdrops, "\t\t%lu connection%s dropped by keepalive\n"); 516 p(tcps_predack, "\t%lu correct ACK header prediction%s\n"); 517 p(tcps_preddat, "\t%lu correct data packet header prediction%s\n"); 518 p(tcps_sndidle, "\t%lu send idle%s\n"); 519 520 p1a(tcps_sc_added, "\t%lu syncache entries added\n"); 521 p1a(tcps_sc_retransmitted, "\t\t%lu retransmitted\n"); 522 p1a(tcps_sc_dupsyn, "\t\t%lu dupsyn\n"); 523 p1a(tcps_sc_dropped, "\t\t%lu dropped\n"); 524 p1a(tcps_sc_completed, "\t\t%lu completed\n"); 525 p1a(tcps_sc_bucketoverflow, "\t\t%lu bucket overflow\n"); 526 p1a(tcps_sc_cacheoverflow, "\t\t%lu cache overflow\n"); 527 p1a(tcps_sc_reset, "\t\t%lu reset\n"); 528 p1a(tcps_sc_stale, "\t\t%lu stale\n"); 529 p1a(tcps_sc_aborted, "\t\t%lu aborted\n"); 530 p1a(tcps_sc_badack, "\t\t%lu badack\n"); 531 p1a(tcps_sc_unreach, "\t\t%lu unreach\n"); 532 p1a(tcps_sc_zonefail, "\t\t%lu zone failures\n"); 533 p1a(tcps_sc_sendcookie, "\t\t%lu cookies sent\n"); 534 p1a(tcps_sc_recvcookie, "\t\t%lu cookies received\n"); 535 536 p(tcps_sacksbupdate, "\t%lu SACK scoreboard update%s\n"); 537 p(tcps_sacksboverflow, "\t\t%lu overflow%s\n"); 538 p(tcps_sacksbfailed, "\t\t%lu failure%s\n"); 539 p(tcps_sacksbreused, "\t\t%lu record%s reused\n"); 540 p(tcps_sacksbfast, "\t\t%lu record%s fast allocated\n"); 541 542 p2(tcps_sackrescue, tcps_sackrescue_try, 543 "\t%lu SACK rescue%s (of %lu attempt%s)\n"); 544 545 free(stattmp); 546 #undef p 547 #undef p1a 548 #undef p2 549 #undef p2a 550 #undef p3 551 } 552 553 /* 554 * Dump UDP statistics structure. 555 */ 556 void 557 udp_stats(u_long off __unused, const char *name, int af1 __unused) 558 { 559 struct udpstat udpstat, zerostat; 560 size_t len = sizeof udpstat; 561 u_long delivered; 562 563 if (zflag) 564 memset(&zerostat, 0, len); 565 if (sysctlbyname("net.inet.udp.stats", &udpstat, &len, 566 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 567 warn("sysctl: net.inet.udp.stats"); 568 return; 569 } 570 571 #ifdef INET6 572 if (udp_done != 0) 573 return; 574 else 575 udp_done = 1; 576 #endif 577 578 printf("%s:\n", name); 579 #define p(f, m) if (udpstat.f || sflag <= 1) \ 580 printf(m, udpstat.f, plural(udpstat.f)) 581 #define p1a(f, m) if (udpstat.f || sflag <= 1) \ 582 printf(m, udpstat.f) 583 p(udps_ipackets, "\t%lu datagram%s received\n"); 584 p1a(udps_hdrops, "\t%lu with incomplete header\n"); 585 p1a(udps_badlen, "\t%lu with bad data length field\n"); 586 p1a(udps_badsum, "\t%lu with bad checksum\n"); 587 p1a(udps_nosum, "\t%lu with no checksum\n"); 588 p1a(udps_noport, "\t%lu dropped due to no socket\n"); 589 p(udps_noportbcast, 590 "\t%lu broadcast/multicast datagram%s dropped due to no socket\n"); 591 p1a(udps_fullsock, "\t%lu dropped due to full socket buffers\n"); 592 p1a(udpps_pcbhashmiss, "\t%lu not for hashed pcb\n"); 593 delivered = udpstat.udps_ipackets - 594 udpstat.udps_hdrops - 595 udpstat.udps_badlen - 596 udpstat.udps_badsum - 597 udpstat.udps_noport - 598 udpstat.udps_noportbcast - 599 udpstat.udps_fullsock; 600 if (delivered || sflag <= 1) 601 printf("\t%lu delivered\n", delivered); 602 p(udps_opackets, "\t%lu datagram%s output\n"); 603 #undef p 604 #undef p1a 605 } 606 607 /* 608 * Dump CARP statistics structure. 609 */ 610 void 611 carp_stats(u_long off __unused, const char *name, int af1 __unused) 612 { 613 struct carpstats carpstat, zerostat; 614 size_t len = sizeof(struct carpstats); 615 616 if (zflag) 617 memset(&zerostat, 0, len); 618 if (sysctlbyname("net.inet.carp.stats", &carpstat, &len, 619 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 620 warn("sysctl: net.inet.carp.stats"); 621 return; 622 } 623 624 printf("%s:\n", name); 625 626 #define p(f, m) if (carpstat.f || sflag <= 1) \ 627 printf(m, (uintmax_t)carpstat.f, plural((int)carpstat.f)) 628 #define p2(f, m) if (carpstat.f || sflag <= 1) \ 629 printf(m, (uintmax_t)carpstat.f) 630 631 p(carps_ipackets, "\t%ju packet%s received (IPv4)\n"); 632 p(carps_ipackets6, "\t%ju packet%s received (IPv6)\n"); 633 p(carps_badttl, "\t\t%ju packet%s discarded for wrong TTL\n"); 634 p(carps_hdrops, "\t\t%ju packet%s shorter than header\n"); 635 p(carps_badsum, "\t\t%ju discarded for bad checksum%s\n"); 636 p(carps_badver, "\t\t%ju discarded packet%s with a bad version\n"); 637 p2(carps_badlen, "\t\t%ju discarded because packet too short\n"); 638 p2(carps_badauth, "\t\t%ju discarded for bad authentication\n"); 639 p2(carps_badvhid, "\t\t%ju discarded for bad vhid\n"); 640 p2(carps_badaddrs, "\t\t%ju discarded because of a bad address list\n"); 641 p(carps_opackets, "\t%ju packet%s sent (IPv4)\n"); 642 p(carps_opackets6, "\t%ju packet%s sent (IPv6)\n"); 643 p2(carps_onomem, "\t\t%ju send failed due to mbuf memory error\n"); 644 #if notyet 645 p(carps_ostates, "\t\t%s state update%s sent\n"); 646 #endif 647 #undef p 648 #undef p2 649 } 650 651 /* 652 * Dump IP statistics structure. 653 */ 654 void 655 ip_stats(u_long off __unused, const char *name, int af1 __unused) 656 { 657 struct ip_stats ipstat, *stattmp; 658 struct ip_stats zerostat[SMP_MAXCPU]; 659 size_t len = sizeof(struct ip_stats) * SMP_MAXCPU; 660 int cpucnt; 661 662 if (zflag) 663 memset(zerostat, 0, len); 664 if ((stattmp = malloc(len)) == NULL) { 665 return; 666 } else { 667 if (sysctlbyname("net.inet.ip.stats", stattmp, &len, 668 zflag ? zerostat : NULL, zflag ? len : 0) < 0) { 669 warn("sysctl: net.inet.ip.stats"); 670 free(stattmp); 671 return; 672 } else { 673 if ((stattmp = realloc(stattmp, len)) == NULL) { 674 warn("ip_stats"); 675 return; 676 } 677 } 678 } 679 cpucnt = len / sizeof(struct ip_stats); 680 ip_stats_agg(stattmp, &ipstat, cpucnt); 681 682 printf("%s:\n", name); 683 684 #define p(f, m) if (ipstat.f || sflag <= 1) \ 685 printf(m, ipstat.f, plural(ipstat.f)) 686 #define p1a(f, m) if (ipstat.f || sflag <= 1) \ 687 printf(m, ipstat.f) 688 689 p(ips_total, "\t%lu total packet%s received\n"); 690 p(ips_badsum, "\t%lu bad header checksum%s\n"); 691 p1a(ips_toosmall, "\t%lu with size smaller than minimum\n"); 692 p1a(ips_tooshort, "\t%lu with data size < data length\n"); 693 p1a(ips_toolong, "\t%lu with ip length > max ip packet size\n"); 694 p1a(ips_badhlen, "\t%lu with header length < data size\n"); 695 p1a(ips_badlen, "\t%lu with data length < header length\n"); 696 p1a(ips_badoptions, "\t%lu with bad options\n"); 697 p1a(ips_badvers, "\t%lu with incorrect version number\n"); 698 p(ips_fragments, "\t%lu fragment%s received\n"); 699 p(ips_fragdropped, "\t%lu fragment%s dropped (dup or out of space)\n"); 700 p(ips_fragtimeout, "\t%lu fragment%s dropped after timeout\n"); 701 p(ips_reassembled, "\t%lu packet%s reassembled ok\n"); 702 p(ips_delivered, "\t%lu packet%s for this host\n"); 703 p(ips_noproto, "\t%lu packet%s for unknown/unsupported protocol\n"); 704 p(ips_forward, "\t%lu packet%s forwarded"); 705 p(ips_fastforward, " (%lu packet%s fast forwarded)"); 706 if (ipstat.ips_forward || sflag <= 1) 707 putchar('\n'); 708 p(ips_cantforward, "\t%lu packet%s not forwardable\n"); 709 p(ips_notmember, 710 "\t%lu packet%s received for unknown multicast group\n"); 711 p(ips_redirectsent, "\t%lu redirect%s sent\n"); 712 p(ips_localout, "\t%lu packet%s sent from this host\n"); 713 p(ips_rawout, "\t%lu packet%s sent with fabricated ip header\n"); 714 p(ips_odropped, 715 "\t%lu output packet%s dropped due to no bufs, etc.\n"); 716 p(ips_noroute, "\t%lu output packet%s discarded due to no route\n"); 717 p(ips_fragmented, "\t%lu output datagram%s fragmented\n"); 718 p(ips_ofragments, "\t%lu fragment%s created\n"); 719 p(ips_cantfrag, "\t%lu datagram%s that can't be fragmented\n"); 720 p(ips_nogif, "\t%lu tunneling packet%s that can't find gif\n"); 721 p(ips_badaddr, "\t%lu datagram%s with bad address in header\n"); 722 free(stattmp); 723 #undef p 724 #undef p1a 725 } 726 727 static const char *icmpnames[] = { 728 "echo reply", 729 "#1", 730 "#2", 731 "destination unreachable", 732 "source quench", 733 "routing redirect", 734 "#6", 735 "#7", 736 "echo", 737 "router advertisement", 738 "router solicitation", 739 "time exceeded", 740 "parameter problem", 741 "time stamp", 742 "time stamp reply", 743 "information request", 744 "information request reply", 745 "address mask request", 746 "address mask reply", 747 }; 748 749 /* 750 * Dump ICMP statistics. 751 */ 752 void 753 icmp_stats(u_long off __unused, const char *name, int af1 __unused) 754 { 755 struct icmpstat icmpstat, zerostat; 756 int i, first; 757 int mib[4]; /* CTL_NET + PF_INET + IPPROTO_ICMP + req */ 758 size_t len; 759 760 mib[0] = CTL_NET; 761 mib[1] = PF_INET; 762 mib[2] = IPPROTO_ICMP; 763 mib[3] = ICMPCTL_STATS; 764 765 len = sizeof icmpstat; 766 if (zflag) 767 memset(&zerostat, 0, len); 768 if (sysctl(mib, 4, &icmpstat, &len, 769 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 770 warn("sysctl: net.inet.icmp.stats"); 771 return; 772 } 773 774 printf("%s:\n", name); 775 776 #define p(f, m) if (icmpstat.f || sflag <= 1) \ 777 printf(m, icmpstat.f, plural(icmpstat.f)) 778 #define p1a(f, m) if (icmpstat.f || sflag <= 1) \ 779 printf(m, icmpstat.f) 780 #define p2(f, m) if (icmpstat.f || sflag <= 1) \ 781 printf(m, icmpstat.f, plurales(icmpstat.f)) 782 783 p(icps_error, "\t%lu call%s to icmp_error\n"); 784 p(icps_oldicmp, 785 "\t%lu error%s not generated 'cuz old message was icmp\n"); 786 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 787 if (icmpstat.icps_outhist[i] != 0) { 788 if (first) { 789 printf("\tOutput histogram:\n"); 790 first = 0; 791 } 792 printf("\t\t%s: %lu\n", icmpnames[i], 793 icmpstat.icps_outhist[i]); 794 } 795 p(icps_badcode, "\t%lu message%s with bad code fields\n"); 796 p(icps_tooshort, "\t%lu message%s < minimum length\n"); 797 p(icps_checksum, "\t%lu bad checksum%s\n"); 798 p(icps_badlen, "\t%lu message%s with bad length\n"); 799 p1a(icps_bmcastecho, "\t%lu multicast echo requests ignored\n"); 800 p1a(icps_bmcasttstamp, "\t%lu multicast timestamp requests ignored\n"); 801 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 802 if (icmpstat.icps_inhist[i] != 0) { 803 if (first) { 804 printf("\tInput histogram:\n"); 805 first = 0; 806 } 807 printf("\t\t%s: %lu\n", icmpnames[i], 808 icmpstat.icps_inhist[i]); 809 } 810 p(icps_reflect, "\t%lu message response%s generated\n"); 811 p2(icps_badaddr, "\t%lu invalid return address%s\n"); 812 p(icps_noroute, "\t%lu no return route%s\n"); 813 #undef p 814 #undef p1a 815 #undef p2 816 mib[3] = ICMPCTL_MASKREPL; 817 len = sizeof i; 818 if (sysctl(mib, 4, &i, &len, NULL, 0) < 0) 819 return; 820 printf("\tICMP address mask responses are %sabled\n", 821 i ? "en" : "dis"); 822 } 823 824 /* 825 * Dump IGMP statistics structure. 826 */ 827 void 828 igmp_stats(u_long off __unused, const char *name, int af1 __unused) 829 { 830 struct igmpstat igmpstat, zerostat; 831 size_t len = sizeof igmpstat; 832 833 if (zflag) 834 memset(&zerostat, 0, len); 835 if (sysctlbyname("net.inet.igmp.stats", &igmpstat, &len, 836 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 837 warn("sysctl: net.inet.igmp.stats"); 838 return; 839 } 840 841 printf("%s:\n", name); 842 843 #define p(f, m) if (igmpstat.f || sflag <= 1) \ 844 printf(m, igmpstat.f, plural(igmpstat.f)) 845 #define py(f, m) if (igmpstat.f || sflag <= 1) \ 846 printf(m, igmpstat.f, igmpstat.f != 1 ? "ies" : "y") 847 p(igps_rcv_total, "\t%u message%s received\n"); 848 p(igps_rcv_tooshort, "\t%u message%s received with too few bytes\n"); 849 p(igps_rcv_badsum, "\t%u message%s received with bad checksum\n"); 850 py(igps_rcv_queries, "\t%u membership quer%s received\n"); 851 py(igps_rcv_badqueries, "\t%u membership quer%s received with invalid field(s)\n"); 852 p(igps_rcv_reports, "\t%u membership report%s received\n"); 853 p(igps_rcv_badreports, "\t%u membership report%s received with invalid field(s)\n"); 854 p(igps_rcv_ourreports, "\t%u membership report%s received for groups to which we belong\n"); 855 p(igps_snd_reports, "\t%u membership report%s sent\n"); 856 #undef p 857 #undef py 858 } 859 860 /* 861 * Dump PIM statistics structure. 862 */ 863 void 864 pim_stats(u_long off __unused, const char *name, int af1 __unused) 865 { 866 struct pimstat pimstat, zerostat; 867 size_t len = sizeof pimstat; 868 869 if (zflag) 870 memset(&zerostat, 0, len); 871 if (sysctlbyname("net.inet.pim.stats", &pimstat, &len, 872 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 873 if (errno != ENOENT) 874 warn("sysctl: net.inet.pim.stats"); 875 return; 876 } 877 878 printf("%s:\n", name); 879 880 #define p(f, m) if (pimstat.f || sflag <= 1) \ 881 printf(m, (uintmax_t)pimstat.f, plural(pimstat.f)) 882 #define py(f, m) if (pimstat.f || sflag <= 1) \ 883 printf(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y") 884 p(pims_rcv_total_msgs, "\t%ju message%s received\n"); 885 p(pims_rcv_total_bytes, "\t%ju byte%s received\n"); 886 p(pims_rcv_tooshort, "\t%ju message%s received with too few bytes\n"); 887 p(pims_rcv_badsum, "\t%ju message%s received with bad checksum\n"); 888 p(pims_rcv_badversion, "\t%ju message%s received with bad version\n"); 889 p(pims_rcv_registers_msgs, "\t%ju data register message%s received\n"); 890 p(pims_rcv_registers_bytes, "\t%ju data register byte%s received\n"); 891 p(pims_rcv_registers_wrongiif, "\t%ju data register message%s received on wrong iif\n"); 892 p(pims_rcv_badregisters, "\t%ju bad register%s received\n"); 893 p(pims_snd_registers_msgs, "\t%ju data register message%s sent\n"); 894 p(pims_snd_registers_bytes, "\t%ju data register byte%s sent\n"); 895 #undef p 896 #undef py 897 } 898 899 /* 900 * Pretty print an Internet address (net address + port). 901 */ 902 void 903 inetprint(struct in_addr *in, int port, const char *proto, int num_port) 904 { 905 struct servent *sp = NULL; 906 char line[80], *cp; 907 int width; 908 909 if (Wflag) 910 sprintf(line, "%s.", inetname(in)); 911 else 912 sprintf(line, "%.*s.", (Aflag && !num_port) ? 12 : 16, inetname(in)); 913 cp = strchr(line, '\0'); 914 if (!num_port && port) 915 sp = getservbyport((int)port, proto); 916 if (sp || port == 0) 917 sprintf(cp, "%.15s ", sp ? sp->s_name : "*"); 918 else 919 sprintf(cp, "%d ", ntohs((u_short)port)); 920 width = (Aflag && !Wflag) ? 17 : 21; 921 if (Wflag) 922 printf("%-*s ", width, line); 923 else 924 printf("%-*.*s ", width, width, line); 925 } 926 927 /* 928 * Construct an Internet address representation. 929 * If numeric_addr has been supplied, give 930 * numeric value, otherwise try for symbolic name. 931 */ 932 char * 933 inetname(struct in_addr *inp) 934 { 935 char *cp; 936 static char line[MAXHOSTNAMELEN]; 937 struct hostent *hp; 938 struct netent *np; 939 940 cp = NULL; 941 if (!numeric_addr && inp->s_addr != INADDR_ANY) { 942 int net = inet_netof(*inp); 943 int lna = inet_lnaof(*inp); 944 945 if (lna == INADDR_ANY) { 946 np = getnetbyaddr(net, AF_INET); 947 if (np) 948 cp = np->n_name; 949 } 950 if (cp == NULL) { 951 hp = gethostbyaddr(inp, sizeof (*inp), AF_INET); 952 if (hp) { 953 cp = hp->h_name; 954 trimdomain(cp, strlen(cp)); 955 } 956 } 957 } 958 if (inp->s_addr == INADDR_ANY) 959 strcpy(line, "*"); 960 else if (cp) { 961 strncpy(line, cp, sizeof(line) - 1); 962 line[sizeof(line) - 1] = '\0'; 963 } else { 964 inp->s_addr = ntohl(inp->s_addr); 965 #define C(x) ((u_int)((x) & 0xff)) 966 sprintf(line, "%u.%u.%u.%u", C(inp->s_addr >> 24), 967 C(inp->s_addr >> 16), C(inp->s_addr >> 8), C(inp->s_addr)); 968 } 969 return (line); 970 } 971