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_sndsackpack, tcps_sndsackbyte, 450 "\t\t%lu data packet%s (%lu byte%s) sent by SACK recovery\n"); 451 p2(tcps_sndsackrtopack, tcps_sndsackrtobyte, 452 "\t\t%lu data packet%s (%lu byte%s) retransmitted by SACK\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 p(tcps_sndrtobad, "\t\t%lu spurious RTO retransmit%s\n"); 457 p2a(tcps_sndfastrexmitbad, tcps_sndearlyrexmitbad, 458 "\t\t%lu spurious Fast Retransmit%s (%lu early)\n"); 459 p2a(tcps_eifeldetected, tcps_rttcantdetect, 460 "\t\t%lu Eifel-detected spurious retransmit%s (%lu non-RTT)\n"); 461 p(tcps_rttdetected, "\t\t%lu RTT-detected spurious retransmit%s\n"); 462 p(tcps_mturesent, "\t\t%lu resend%s initiated by MTU discovery\n"); 463 p(tcps_sndsackopt, "\t\t%lu SACK option%s sent\n"); 464 p(tcps_snddsackopt, "\t\t%lu D-SACK option%s sent\n"); 465 p2a(tcps_sndacks, tcps_delack, 466 "\t\t%lu ack-only packet%s (%lu delayed)\n"); 467 p(tcps_sndurg, "\t\t%lu URG only packet%s\n"); 468 p(tcps_sndprobe, "\t\t%lu window probe packet%s\n"); 469 p(tcps_sndwinup, "\t\t%lu window update packet%s\n"); 470 p(tcps_sndctrl, "\t\t%lu control packet%s\n"); 471 p(tcps_rcvtotal, "\t%lu packet%s received\n"); 472 p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t%lu ack%s (for %lu byte%s)\n"); 473 p(tcps_rcvdupack, "\t\t%lu duplicate ack%s\n"); 474 p(tcps_rcvacktoomuch, "\t\t%lu ack%s for unsent data\n"); 475 p2(tcps_rcvpack, tcps_rcvbyte, 476 "\t\t%lu packet%s (%lu byte%s) received in-sequence\n"); 477 p2(tcps_rcvduppack, tcps_rcvdupbyte, 478 "\t\t%lu completely duplicate packet%s (%lu byte%s)\n"); 479 p(tcps_pawsdrop, "\t\t%lu old duplicate packet%s\n"); 480 p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte, 481 "\t\t%lu packet%s with some dup. data (%lu byte%s duped)\n"); 482 p2(tcps_rcvoopack, tcps_rcvoobyte, 483 "\t\t%lu out-of-order packet%s (%lu byte%s)\n"); 484 p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin, 485 "\t\t%lu packet%s (%lu byte%s) of data after window\n"); 486 p(tcps_rcvwinprobe, "\t\t%lu window probe%s\n"); 487 p(tcps_rcvwinupd, "\t\t%lu window update packet%s\n"); 488 p(tcps_rcvafterclose, "\t\t%lu packet%s received after close\n"); 489 p(tcps_rcvbadsum, "\t\t%lu discarded for bad checksum%s\n"); 490 p(tcps_rcvbadoff, "\t\t%lu discarded for bad header offset field%s\n"); 491 p1a(tcps_rcvshort, "\t\t%lu discarded because packet too short\n"); 492 p(tcps_rcvbadsackopt, "\t\t%lu bad SACK option%s\n"); 493 p(tcps_connattempt, "\t%lu connection request%s\n"); 494 p(tcps_accepts, "\t%lu connection accept%s\n"); 495 p(tcps_badsyn, "\t%lu bad connection attempt%s\n"); 496 p(tcps_listendrop, "\t%lu listen queue overflow%s\n"); 497 p(tcps_connects, "\t%lu connection%s established (including accepts)\n"); 498 p2(tcps_closed, tcps_drops, 499 "\t%lu connection%s closed (including %lu drop%s)\n"); 500 p(tcps_cachedrtt, "\t\t%lu connection%s updated cached RTT on close\n"); 501 p(tcps_cachedrttvar, 502 "\t\t%lu connection%s updated cached RTT variance on close\n"); 503 p(tcps_cachedssthresh, 504 "\t\t%lu connection%s updated cached ssthresh on close\n"); 505 p(tcps_conndrops, "\t%lu embryonic connection%s dropped\n"); 506 p2(tcps_rttupdated, tcps_segstimed, 507 "\t%lu segment%s updated rtt (of %lu attempt%s)\n"); 508 p(tcps_rexmttimeo, "\t%lu retransmit timeout%s\n"); 509 p(tcps_timeoutdrop, "\t\t%lu connection%s dropped by rexmit timeout\n"); 510 p(tcps_persisttimeo, "\t%lu persist timeout%s\n"); 511 p(tcps_persistdrop, "\t\t%lu connection%s dropped by persist timeout\n"); 512 p(tcps_keeptimeo, "\t%lu keepalive timeout%s\n"); 513 p(tcps_keepprobe, "\t\t%lu keepalive probe%s sent\n"); 514 p(tcps_keepdrops, "\t\t%lu connection%s dropped by keepalive\n"); 515 p(tcps_predack, "\t%lu correct ACK header prediction%s\n"); 516 p(tcps_preddat, "\t%lu correct data packet header prediction%s\n"); 517 518 p1a(tcps_sc_added, "\t%lu syncache entries added\n"); 519 p1a(tcps_sc_retransmitted, "\t\t%lu retransmitted\n"); 520 p1a(tcps_sc_dupsyn, "\t\t%lu dupsyn\n"); 521 p1a(tcps_sc_dropped, "\t\t%lu dropped\n"); 522 p1a(tcps_sc_completed, "\t\t%lu completed\n"); 523 p1a(tcps_sc_bucketoverflow, "\t\t%lu bucket overflow\n"); 524 p1a(tcps_sc_cacheoverflow, "\t\t%lu cache overflow\n"); 525 p1a(tcps_sc_reset, "\t\t%lu reset\n"); 526 p1a(tcps_sc_stale, "\t\t%lu stale\n"); 527 p1a(tcps_sc_aborted, "\t\t%lu aborted\n"); 528 p1a(tcps_sc_badack, "\t\t%lu badack\n"); 529 p1a(tcps_sc_unreach, "\t\t%lu unreach\n"); 530 p1a(tcps_sc_zonefail, "\t\t%lu zone failures\n"); 531 p1a(tcps_sc_sendcookie, "\t\t%lu cookies sent\n"); 532 p1a(tcps_sc_recvcookie, "\t\t%lu cookies received\n"); 533 534 p(tcps_sacksbupdate, "\t%lu SACK scoreboard update%s\n"); 535 p(tcps_sacksboverflow, "\t\t%lu overflow%s\n"); 536 p(tcps_sacksbfailed, "\t\t%lu failure%s\n"); 537 p(tcps_sacksbreused, "\t\t%lu record%s reused\n"); 538 539 free(stattmp); 540 #undef p 541 #undef p1a 542 #undef p2 543 #undef p2a 544 #undef p3 545 } 546 547 /* 548 * Dump UDP statistics structure. 549 */ 550 void 551 udp_stats(u_long off __unused, const char *name, int af1 __unused) 552 { 553 struct udpstat udpstat, zerostat; 554 size_t len = sizeof udpstat; 555 u_long delivered; 556 557 if (zflag) 558 memset(&zerostat, 0, len); 559 if (sysctlbyname("net.inet.udp.stats", &udpstat, &len, 560 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 561 warn("sysctl: net.inet.udp.stats"); 562 return; 563 } 564 565 #ifdef INET6 566 if (udp_done != 0) 567 return; 568 else 569 udp_done = 1; 570 #endif 571 572 printf("%s:\n", name); 573 #define p(f, m) if (udpstat.f || sflag <= 1) \ 574 printf(m, udpstat.f, plural(udpstat.f)) 575 #define p1a(f, m) if (udpstat.f || sflag <= 1) \ 576 printf(m, udpstat.f) 577 p(udps_ipackets, "\t%lu datagram%s received\n"); 578 p1a(udps_hdrops, "\t%lu with incomplete header\n"); 579 p1a(udps_badlen, "\t%lu with bad data length field\n"); 580 p1a(udps_badsum, "\t%lu with bad checksum\n"); 581 p1a(udps_nosum, "\t%lu with no checksum\n"); 582 p1a(udps_noport, "\t%lu dropped due to no socket\n"); 583 p(udps_noportbcast, 584 "\t%lu broadcast/multicast datagram%s dropped due to no socket\n"); 585 p1a(udps_fullsock, "\t%lu dropped due to full socket buffers\n"); 586 p1a(udpps_pcbhashmiss, "\t%lu not for hashed pcb\n"); 587 delivered = udpstat.udps_ipackets - 588 udpstat.udps_hdrops - 589 udpstat.udps_badlen - 590 udpstat.udps_badsum - 591 udpstat.udps_noport - 592 udpstat.udps_noportbcast - 593 udpstat.udps_fullsock; 594 if (delivered || sflag <= 1) 595 printf("\t%lu delivered\n", delivered); 596 p(udps_opackets, "\t%lu datagram%s output\n"); 597 #undef p 598 #undef p1a 599 } 600 601 /* 602 * Dump CARP statistics structure. 603 */ 604 void 605 carp_stats(u_long off __unused, const char *name, int af1 __unused) 606 { 607 struct carpstats carpstat, zerostat; 608 size_t len = sizeof(struct carpstats); 609 610 if (zflag) 611 memset(&zerostat, 0, len); 612 if (sysctlbyname("net.inet.carp.stats", &carpstat, &len, 613 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 614 warn("sysctl: net.inet.carp.stats"); 615 return; 616 } 617 618 printf("%s:\n", name); 619 620 #define p(f, m) if (carpstat.f || sflag <= 1) \ 621 printf(m, (uintmax_t)carpstat.f, plural((int)carpstat.f)) 622 #define p2(f, m) if (carpstat.f || sflag <= 1) \ 623 printf(m, (uintmax_t)carpstat.f) 624 625 p(carps_ipackets, "\t%ju packet%s received (IPv4)\n"); 626 p(carps_ipackets6, "\t%ju packet%s received (IPv6)\n"); 627 p(carps_badttl, "\t\t%ju packet%s discarded for wrong TTL\n"); 628 p(carps_hdrops, "\t\t%ju packet%s shorter than header\n"); 629 p(carps_badsum, "\t\t%ju discarded for bad checksum%s\n"); 630 p(carps_badver, "\t\t%ju discarded packet%s with a bad version\n"); 631 p2(carps_badlen, "\t\t%ju discarded because packet too short\n"); 632 p2(carps_badauth, "\t\t%ju discarded for bad authentication\n"); 633 p2(carps_badvhid, "\t\t%ju discarded for bad vhid\n"); 634 p2(carps_badaddrs, "\t\t%ju discarded because of a bad address list\n"); 635 p(carps_opackets, "\t%ju packet%s sent (IPv4)\n"); 636 p(carps_opackets6, "\t%ju packet%s sent (IPv6)\n"); 637 p2(carps_onomem, "\t\t%ju send failed due to mbuf memory error\n"); 638 #if notyet 639 p(carps_ostates, "\t\t%s state update%s sent\n"); 640 #endif 641 #undef p 642 #undef p2 643 } 644 645 /* 646 * Dump IP statistics structure. 647 */ 648 void 649 ip_stats(u_long off __unused, const char *name, int af1 __unused) 650 { 651 struct ip_stats ipstat, *stattmp; 652 struct ip_stats zerostat[SMP_MAXCPU]; 653 size_t len = sizeof(struct ip_stats) * SMP_MAXCPU; 654 int cpucnt; 655 656 if (zflag) 657 memset(zerostat, 0, len); 658 if ((stattmp = malloc(len)) == NULL) { 659 return; 660 } else { 661 if (sysctlbyname("net.inet.ip.stats", stattmp, &len, 662 zflag ? zerostat : NULL, zflag ? len : 0) < 0) { 663 warn("sysctl: net.inet.ip.stats"); 664 free(stattmp); 665 return; 666 } else { 667 if ((stattmp = realloc(stattmp, len)) == NULL) { 668 warn("ip_stats"); 669 return; 670 } 671 } 672 } 673 cpucnt = len / sizeof(struct ip_stats); 674 ip_stats_agg(stattmp, &ipstat, cpucnt); 675 676 printf("%s:\n", name); 677 678 #define p(f, m) if (ipstat.f || sflag <= 1) \ 679 printf(m, ipstat.f, plural(ipstat.f)) 680 #define p1a(f, m) if (ipstat.f || sflag <= 1) \ 681 printf(m, ipstat.f) 682 683 p(ips_total, "\t%lu total packet%s received\n"); 684 p(ips_badsum, "\t%lu bad header checksum%s\n"); 685 p1a(ips_toosmall, "\t%lu with size smaller than minimum\n"); 686 p1a(ips_tooshort, "\t%lu with data size < data length\n"); 687 p1a(ips_toolong, "\t%lu with ip length > max ip packet size\n"); 688 p1a(ips_badhlen, "\t%lu with header length < data size\n"); 689 p1a(ips_badlen, "\t%lu with data length < header length\n"); 690 p1a(ips_badoptions, "\t%lu with bad options\n"); 691 p1a(ips_badvers, "\t%lu with incorrect version number\n"); 692 p(ips_fragments, "\t%lu fragment%s received\n"); 693 p(ips_fragdropped, "\t%lu fragment%s dropped (dup or out of space)\n"); 694 p(ips_fragtimeout, "\t%lu fragment%s dropped after timeout\n"); 695 p(ips_reassembled, "\t%lu packet%s reassembled ok\n"); 696 p(ips_delivered, "\t%lu packet%s for this host\n"); 697 p(ips_noproto, "\t%lu packet%s for unknown/unsupported protocol\n"); 698 p(ips_forward, "\t%lu packet%s forwarded"); 699 p(ips_fastforward, " (%lu packet%s fast forwarded)"); 700 if (ipstat.ips_forward || sflag <= 1) 701 putchar('\n'); 702 p(ips_cantforward, "\t%lu packet%s not forwardable\n"); 703 p(ips_notmember, 704 "\t%lu packet%s received for unknown multicast group\n"); 705 p(ips_redirectsent, "\t%lu redirect%s sent\n"); 706 p(ips_localout, "\t%lu packet%s sent from this host\n"); 707 p(ips_rawout, "\t%lu packet%s sent with fabricated ip header\n"); 708 p(ips_odropped, 709 "\t%lu output packet%s dropped due to no bufs, etc.\n"); 710 p(ips_noroute, "\t%lu output packet%s discarded due to no route\n"); 711 p(ips_fragmented, "\t%lu output datagram%s fragmented\n"); 712 p(ips_ofragments, "\t%lu fragment%s created\n"); 713 p(ips_cantfrag, "\t%lu datagram%s that can't be fragmented\n"); 714 p(ips_nogif, "\t%lu tunneling packet%s that can't find gif\n"); 715 p(ips_badaddr, "\t%lu datagram%s with bad address in header\n"); 716 free(stattmp); 717 #undef p 718 #undef p1a 719 } 720 721 static const char *icmpnames[] = { 722 "echo reply", 723 "#1", 724 "#2", 725 "destination unreachable", 726 "source quench", 727 "routing redirect", 728 "#6", 729 "#7", 730 "echo", 731 "router advertisement", 732 "router solicitation", 733 "time exceeded", 734 "parameter problem", 735 "time stamp", 736 "time stamp reply", 737 "information request", 738 "information request reply", 739 "address mask request", 740 "address mask reply", 741 }; 742 743 /* 744 * Dump ICMP statistics. 745 */ 746 void 747 icmp_stats(u_long off __unused, const char *name, int af1 __unused) 748 { 749 struct icmpstat icmpstat, zerostat; 750 int i, first; 751 int mib[4]; /* CTL_NET + PF_INET + IPPROTO_ICMP + req */ 752 size_t len; 753 754 mib[0] = CTL_NET; 755 mib[1] = PF_INET; 756 mib[2] = IPPROTO_ICMP; 757 mib[3] = ICMPCTL_STATS; 758 759 len = sizeof icmpstat; 760 if (zflag) 761 memset(&zerostat, 0, len); 762 if (sysctl(mib, 4, &icmpstat, &len, 763 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 764 warn("sysctl: net.inet.icmp.stats"); 765 return; 766 } 767 768 printf("%s:\n", name); 769 770 #define p(f, m) if (icmpstat.f || sflag <= 1) \ 771 printf(m, icmpstat.f, plural(icmpstat.f)) 772 #define p1a(f, m) if (icmpstat.f || sflag <= 1) \ 773 printf(m, icmpstat.f) 774 #define p2(f, m) if (icmpstat.f || sflag <= 1) \ 775 printf(m, icmpstat.f, plurales(icmpstat.f)) 776 777 p(icps_error, "\t%lu call%s to icmp_error\n"); 778 p(icps_oldicmp, 779 "\t%lu error%s not generated 'cuz old message was icmp\n"); 780 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 781 if (icmpstat.icps_outhist[i] != 0) { 782 if (first) { 783 printf("\tOutput histogram:\n"); 784 first = 0; 785 } 786 printf("\t\t%s: %lu\n", icmpnames[i], 787 icmpstat.icps_outhist[i]); 788 } 789 p(icps_badcode, "\t%lu message%s with bad code fields\n"); 790 p(icps_tooshort, "\t%lu message%s < minimum length\n"); 791 p(icps_checksum, "\t%lu bad checksum%s\n"); 792 p(icps_badlen, "\t%lu message%s with bad length\n"); 793 p1a(icps_bmcastecho, "\t%lu multicast echo requests ignored\n"); 794 p1a(icps_bmcasttstamp, "\t%lu multicast timestamp requests ignored\n"); 795 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 796 if (icmpstat.icps_inhist[i] != 0) { 797 if (first) { 798 printf("\tInput histogram:\n"); 799 first = 0; 800 } 801 printf("\t\t%s: %lu\n", icmpnames[i], 802 icmpstat.icps_inhist[i]); 803 } 804 p(icps_reflect, "\t%lu message response%s generated\n"); 805 p2(icps_badaddr, "\t%lu invalid return address%s\n"); 806 p(icps_noroute, "\t%lu no return route%s\n"); 807 #undef p 808 #undef p1a 809 #undef p2 810 mib[3] = ICMPCTL_MASKREPL; 811 len = sizeof i; 812 if (sysctl(mib, 4, &i, &len, NULL, 0) < 0) 813 return; 814 printf("\tICMP address mask responses are %sabled\n", 815 i ? "en" : "dis"); 816 } 817 818 /* 819 * Dump IGMP statistics structure. 820 */ 821 void 822 igmp_stats(u_long off __unused, const char *name, int af1 __unused) 823 { 824 struct igmpstat igmpstat, zerostat; 825 size_t len = sizeof igmpstat; 826 827 if (zflag) 828 memset(&zerostat, 0, len); 829 if (sysctlbyname("net.inet.igmp.stats", &igmpstat, &len, 830 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 831 warn("sysctl: net.inet.igmp.stats"); 832 return; 833 } 834 835 printf("%s:\n", name); 836 837 #define p(f, m) if (igmpstat.f || sflag <= 1) \ 838 printf(m, igmpstat.f, plural(igmpstat.f)) 839 #define py(f, m) if (igmpstat.f || sflag <= 1) \ 840 printf(m, igmpstat.f, igmpstat.f != 1 ? "ies" : "y") 841 p(igps_rcv_total, "\t%u message%s received\n"); 842 p(igps_rcv_tooshort, "\t%u message%s received with too few bytes\n"); 843 p(igps_rcv_badsum, "\t%u message%s received with bad checksum\n"); 844 py(igps_rcv_queries, "\t%u membership quer%s received\n"); 845 py(igps_rcv_badqueries, "\t%u membership quer%s received with invalid field(s)\n"); 846 p(igps_rcv_reports, "\t%u membership report%s received\n"); 847 p(igps_rcv_badreports, "\t%u membership report%s received with invalid field(s)\n"); 848 p(igps_rcv_ourreports, "\t%u membership report%s received for groups to which we belong\n"); 849 p(igps_snd_reports, "\t%u membership report%s sent\n"); 850 #undef p 851 #undef py 852 } 853 854 /* 855 * Dump PIM statistics structure. 856 */ 857 void 858 pim_stats(u_long off __unused, const char *name, int af1 __unused) 859 { 860 struct pimstat pimstat, zerostat; 861 size_t len = sizeof pimstat; 862 863 if (zflag) 864 memset(&zerostat, 0, len); 865 if (sysctlbyname("net.inet.pim.stats", &pimstat, &len, 866 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 867 if (errno != ENOENT) 868 warn("sysctl: net.inet.pim.stats"); 869 return; 870 } 871 872 printf("%s:\n", name); 873 874 #define p(f, m) if (pimstat.f || sflag <= 1) \ 875 printf(m, (uintmax_t)pimstat.f, plural(pimstat.f)) 876 #define py(f, m) if (pimstat.f || sflag <= 1) \ 877 printf(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y") 878 p(pims_rcv_total_msgs, "\t%ju message%s received\n"); 879 p(pims_rcv_total_bytes, "\t%ju byte%s received\n"); 880 p(pims_rcv_tooshort, "\t%ju message%s received with too few bytes\n"); 881 p(pims_rcv_badsum, "\t%ju message%s received with bad checksum\n"); 882 p(pims_rcv_badversion, "\t%ju message%s received with bad version\n"); 883 p(pims_rcv_registers_msgs, "\t%ju data register message%s received\n"); 884 p(pims_rcv_registers_bytes, "\t%ju data register byte%s received\n"); 885 p(pims_rcv_registers_wrongiif, "\t%ju data register message%s received on wrong iif\n"); 886 p(pims_rcv_badregisters, "\t%ju bad register%s received\n"); 887 p(pims_snd_registers_msgs, "\t%ju data register message%s sent\n"); 888 p(pims_snd_registers_bytes, "\t%ju data register byte%s sent\n"); 889 #undef p 890 #undef py 891 } 892 893 /* 894 * Pretty print an Internet address (net address + port). 895 */ 896 void 897 inetprint(struct in_addr *in, int port, const char *proto, int num_port) 898 { 899 struct servent *sp = NULL; 900 char line[80], *cp; 901 int width; 902 903 if (Wflag) 904 sprintf(line, "%s.", inetname(in)); 905 else 906 sprintf(line, "%.*s.", (Aflag && !num_port) ? 12 : 16, inetname(in)); 907 cp = strchr(line, '\0'); 908 if (!num_port && port) 909 sp = getservbyport((int)port, proto); 910 if (sp || port == 0) 911 sprintf(cp, "%.15s ", sp ? sp->s_name : "*"); 912 else 913 sprintf(cp, "%d ", ntohs((u_short)port)); 914 width = (Aflag && !Wflag) ? 17 : 21; 915 if (Wflag) 916 printf("%-*s ", width, line); 917 else 918 printf("%-*.*s ", width, width, line); 919 } 920 921 /* 922 * Construct an Internet address representation. 923 * If numeric_addr has been supplied, give 924 * numeric value, otherwise try for symbolic name. 925 */ 926 char * 927 inetname(struct in_addr *inp) 928 { 929 char *cp; 930 static char line[MAXHOSTNAMELEN]; 931 struct hostent *hp; 932 struct netent *np; 933 934 cp = NULL; 935 if (!numeric_addr && inp->s_addr != INADDR_ANY) { 936 int net = inet_netof(*inp); 937 int lna = inet_lnaof(*inp); 938 939 if (lna == INADDR_ANY) { 940 np = getnetbyaddr(net, AF_INET); 941 if (np) 942 cp = np->n_name; 943 } 944 if (cp == NULL) { 945 hp = gethostbyaddr(inp, sizeof (*inp), AF_INET); 946 if (hp) { 947 cp = hp->h_name; 948 trimdomain(cp, strlen(cp)); 949 } 950 } 951 } 952 if (inp->s_addr == INADDR_ANY) 953 strcpy(line, "*"); 954 else if (cp) { 955 strncpy(line, cp, sizeof(line) - 1); 956 line[sizeof(line) - 1] = '\0'; 957 } else { 958 inp->s_addr = ntohl(inp->s_addr); 959 #define C(x) ((u_int)((x) & 0xff)) 960 sprintf(line, "%u.%u.%u.%u", C(inp->s_addr >> 24), 961 C(inp->s_addr >> 16), C(inp->s_addr >> 8), C(inp->s_addr)); 962 } 963 return (line); 964 } 965