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 p(tcps_sndidle, "\t%lu send idle%s\n"); 518 519 p1a(tcps_sc_added, "\t%lu syncache entries added\n"); 520 p1a(tcps_sc_retransmitted, "\t\t%lu retransmitted\n"); 521 p1a(tcps_sc_dupsyn, "\t\t%lu dupsyn\n"); 522 p1a(tcps_sc_dropped, "\t\t%lu dropped\n"); 523 p1a(tcps_sc_completed, "\t\t%lu completed\n"); 524 p1a(tcps_sc_bucketoverflow, "\t\t%lu bucket overflow\n"); 525 p1a(tcps_sc_cacheoverflow, "\t\t%lu cache overflow\n"); 526 p1a(tcps_sc_reset, "\t\t%lu reset\n"); 527 p1a(tcps_sc_stale, "\t\t%lu stale\n"); 528 p1a(tcps_sc_aborted, "\t\t%lu aborted\n"); 529 p1a(tcps_sc_badack, "\t\t%lu badack\n"); 530 p1a(tcps_sc_unreach, "\t\t%lu unreach\n"); 531 p1a(tcps_sc_zonefail, "\t\t%lu zone failures\n"); 532 p1a(tcps_sc_sendcookie, "\t\t%lu cookies sent\n"); 533 p1a(tcps_sc_recvcookie, "\t\t%lu cookies received\n"); 534 535 p(tcps_sacksbupdate, "\t%lu SACK scoreboard update%s\n"); 536 p(tcps_sacksboverflow, "\t\t%lu overflow%s\n"); 537 p(tcps_sacksbfailed, "\t\t%lu failure%s\n"); 538 p(tcps_sacksbreused, "\t\t%lu record%s reused\n"); 539 p(tcps_sacksbfast, "\t\t%lu record%s fast allocated\n"); 540 541 free(stattmp); 542 #undef p 543 #undef p1a 544 #undef p2 545 #undef p2a 546 #undef p3 547 } 548 549 /* 550 * Dump UDP statistics structure. 551 */ 552 void 553 udp_stats(u_long off __unused, const char *name, int af1 __unused) 554 { 555 struct udpstat udpstat, zerostat; 556 size_t len = sizeof udpstat; 557 u_long delivered; 558 559 if (zflag) 560 memset(&zerostat, 0, len); 561 if (sysctlbyname("net.inet.udp.stats", &udpstat, &len, 562 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 563 warn("sysctl: net.inet.udp.stats"); 564 return; 565 } 566 567 #ifdef INET6 568 if (udp_done != 0) 569 return; 570 else 571 udp_done = 1; 572 #endif 573 574 printf("%s:\n", name); 575 #define p(f, m) if (udpstat.f || sflag <= 1) \ 576 printf(m, udpstat.f, plural(udpstat.f)) 577 #define p1a(f, m) if (udpstat.f || sflag <= 1) \ 578 printf(m, udpstat.f) 579 p(udps_ipackets, "\t%lu datagram%s received\n"); 580 p1a(udps_hdrops, "\t%lu with incomplete header\n"); 581 p1a(udps_badlen, "\t%lu with bad data length field\n"); 582 p1a(udps_badsum, "\t%lu with bad checksum\n"); 583 p1a(udps_nosum, "\t%lu with no checksum\n"); 584 p1a(udps_noport, "\t%lu dropped due to no socket\n"); 585 p(udps_noportbcast, 586 "\t%lu broadcast/multicast datagram%s dropped due to no socket\n"); 587 p1a(udps_fullsock, "\t%lu dropped due to full socket buffers\n"); 588 p1a(udpps_pcbhashmiss, "\t%lu not for hashed pcb\n"); 589 delivered = udpstat.udps_ipackets - 590 udpstat.udps_hdrops - 591 udpstat.udps_badlen - 592 udpstat.udps_badsum - 593 udpstat.udps_noport - 594 udpstat.udps_noportbcast - 595 udpstat.udps_fullsock; 596 if (delivered || sflag <= 1) 597 printf("\t%lu delivered\n", delivered); 598 p(udps_opackets, "\t%lu datagram%s output\n"); 599 #undef p 600 #undef p1a 601 } 602 603 /* 604 * Dump CARP statistics structure. 605 */ 606 void 607 carp_stats(u_long off __unused, const char *name, int af1 __unused) 608 { 609 struct carpstats carpstat, zerostat; 610 size_t len = sizeof(struct carpstats); 611 612 if (zflag) 613 memset(&zerostat, 0, len); 614 if (sysctlbyname("net.inet.carp.stats", &carpstat, &len, 615 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 616 warn("sysctl: net.inet.carp.stats"); 617 return; 618 } 619 620 printf("%s:\n", name); 621 622 #define p(f, m) if (carpstat.f || sflag <= 1) \ 623 printf(m, (uintmax_t)carpstat.f, plural((int)carpstat.f)) 624 #define p2(f, m) if (carpstat.f || sflag <= 1) \ 625 printf(m, (uintmax_t)carpstat.f) 626 627 p(carps_ipackets, "\t%ju packet%s received (IPv4)\n"); 628 p(carps_ipackets6, "\t%ju packet%s received (IPv6)\n"); 629 p(carps_badttl, "\t\t%ju packet%s discarded for wrong TTL\n"); 630 p(carps_hdrops, "\t\t%ju packet%s shorter than header\n"); 631 p(carps_badsum, "\t\t%ju discarded for bad checksum%s\n"); 632 p(carps_badver, "\t\t%ju discarded packet%s with a bad version\n"); 633 p2(carps_badlen, "\t\t%ju discarded because packet too short\n"); 634 p2(carps_badauth, "\t\t%ju discarded for bad authentication\n"); 635 p2(carps_badvhid, "\t\t%ju discarded for bad vhid\n"); 636 p2(carps_badaddrs, "\t\t%ju discarded because of a bad address list\n"); 637 p(carps_opackets, "\t%ju packet%s sent (IPv4)\n"); 638 p(carps_opackets6, "\t%ju packet%s sent (IPv6)\n"); 639 p2(carps_onomem, "\t\t%ju send failed due to mbuf memory error\n"); 640 #if notyet 641 p(carps_ostates, "\t\t%s state update%s sent\n"); 642 #endif 643 #undef p 644 #undef p2 645 } 646 647 /* 648 * Dump IP statistics structure. 649 */ 650 void 651 ip_stats(u_long off __unused, const char *name, int af1 __unused) 652 { 653 struct ip_stats ipstat, *stattmp; 654 struct ip_stats zerostat[SMP_MAXCPU]; 655 size_t len = sizeof(struct ip_stats) * SMP_MAXCPU; 656 int cpucnt; 657 658 if (zflag) 659 memset(zerostat, 0, len); 660 if ((stattmp = malloc(len)) == NULL) { 661 return; 662 } else { 663 if (sysctlbyname("net.inet.ip.stats", stattmp, &len, 664 zflag ? zerostat : NULL, zflag ? len : 0) < 0) { 665 warn("sysctl: net.inet.ip.stats"); 666 free(stattmp); 667 return; 668 } else { 669 if ((stattmp = realloc(stattmp, len)) == NULL) { 670 warn("ip_stats"); 671 return; 672 } 673 } 674 } 675 cpucnt = len / sizeof(struct ip_stats); 676 ip_stats_agg(stattmp, &ipstat, cpucnt); 677 678 printf("%s:\n", name); 679 680 #define p(f, m) if (ipstat.f || sflag <= 1) \ 681 printf(m, ipstat.f, plural(ipstat.f)) 682 #define p1a(f, m) if (ipstat.f || sflag <= 1) \ 683 printf(m, ipstat.f) 684 685 p(ips_total, "\t%lu total packet%s received\n"); 686 p(ips_badsum, "\t%lu bad header checksum%s\n"); 687 p1a(ips_toosmall, "\t%lu with size smaller than minimum\n"); 688 p1a(ips_tooshort, "\t%lu with data size < data length\n"); 689 p1a(ips_toolong, "\t%lu with ip length > max ip packet size\n"); 690 p1a(ips_badhlen, "\t%lu with header length < data size\n"); 691 p1a(ips_badlen, "\t%lu with data length < header length\n"); 692 p1a(ips_badoptions, "\t%lu with bad options\n"); 693 p1a(ips_badvers, "\t%lu with incorrect version number\n"); 694 p(ips_fragments, "\t%lu fragment%s received\n"); 695 p(ips_fragdropped, "\t%lu fragment%s dropped (dup or out of space)\n"); 696 p(ips_fragtimeout, "\t%lu fragment%s dropped after timeout\n"); 697 p(ips_reassembled, "\t%lu packet%s reassembled ok\n"); 698 p(ips_delivered, "\t%lu packet%s for this host\n"); 699 p(ips_noproto, "\t%lu packet%s for unknown/unsupported protocol\n"); 700 p(ips_forward, "\t%lu packet%s forwarded"); 701 p(ips_fastforward, " (%lu packet%s fast forwarded)"); 702 if (ipstat.ips_forward || sflag <= 1) 703 putchar('\n'); 704 p(ips_cantforward, "\t%lu packet%s not forwardable\n"); 705 p(ips_notmember, 706 "\t%lu packet%s received for unknown multicast group\n"); 707 p(ips_redirectsent, "\t%lu redirect%s sent\n"); 708 p(ips_localout, "\t%lu packet%s sent from this host\n"); 709 p(ips_rawout, "\t%lu packet%s sent with fabricated ip header\n"); 710 p(ips_odropped, 711 "\t%lu output packet%s dropped due to no bufs, etc.\n"); 712 p(ips_noroute, "\t%lu output packet%s discarded due to no route\n"); 713 p(ips_fragmented, "\t%lu output datagram%s fragmented\n"); 714 p(ips_ofragments, "\t%lu fragment%s created\n"); 715 p(ips_cantfrag, "\t%lu datagram%s that can't be fragmented\n"); 716 p(ips_nogif, "\t%lu tunneling packet%s that can't find gif\n"); 717 p(ips_badaddr, "\t%lu datagram%s with bad address in header\n"); 718 free(stattmp); 719 #undef p 720 #undef p1a 721 } 722 723 static const char *icmpnames[] = { 724 "echo reply", 725 "#1", 726 "#2", 727 "destination unreachable", 728 "source quench", 729 "routing redirect", 730 "#6", 731 "#7", 732 "echo", 733 "router advertisement", 734 "router solicitation", 735 "time exceeded", 736 "parameter problem", 737 "time stamp", 738 "time stamp reply", 739 "information request", 740 "information request reply", 741 "address mask request", 742 "address mask reply", 743 }; 744 745 /* 746 * Dump ICMP statistics. 747 */ 748 void 749 icmp_stats(u_long off __unused, const char *name, int af1 __unused) 750 { 751 struct icmpstat icmpstat, zerostat; 752 int i, first; 753 int mib[4]; /* CTL_NET + PF_INET + IPPROTO_ICMP + req */ 754 size_t len; 755 756 mib[0] = CTL_NET; 757 mib[1] = PF_INET; 758 mib[2] = IPPROTO_ICMP; 759 mib[3] = ICMPCTL_STATS; 760 761 len = sizeof icmpstat; 762 if (zflag) 763 memset(&zerostat, 0, len); 764 if (sysctl(mib, 4, &icmpstat, &len, 765 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 766 warn("sysctl: net.inet.icmp.stats"); 767 return; 768 } 769 770 printf("%s:\n", name); 771 772 #define p(f, m) if (icmpstat.f || sflag <= 1) \ 773 printf(m, icmpstat.f, plural(icmpstat.f)) 774 #define p1a(f, m) if (icmpstat.f || sflag <= 1) \ 775 printf(m, icmpstat.f) 776 #define p2(f, m) if (icmpstat.f || sflag <= 1) \ 777 printf(m, icmpstat.f, plurales(icmpstat.f)) 778 779 p(icps_error, "\t%lu call%s to icmp_error\n"); 780 p(icps_oldicmp, 781 "\t%lu error%s not generated 'cuz old message was icmp\n"); 782 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 783 if (icmpstat.icps_outhist[i] != 0) { 784 if (first) { 785 printf("\tOutput histogram:\n"); 786 first = 0; 787 } 788 printf("\t\t%s: %lu\n", icmpnames[i], 789 icmpstat.icps_outhist[i]); 790 } 791 p(icps_badcode, "\t%lu message%s with bad code fields\n"); 792 p(icps_tooshort, "\t%lu message%s < minimum length\n"); 793 p(icps_checksum, "\t%lu bad checksum%s\n"); 794 p(icps_badlen, "\t%lu message%s with bad length\n"); 795 p1a(icps_bmcastecho, "\t%lu multicast echo requests ignored\n"); 796 p1a(icps_bmcasttstamp, "\t%lu multicast timestamp requests ignored\n"); 797 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 798 if (icmpstat.icps_inhist[i] != 0) { 799 if (first) { 800 printf("\tInput histogram:\n"); 801 first = 0; 802 } 803 printf("\t\t%s: %lu\n", icmpnames[i], 804 icmpstat.icps_inhist[i]); 805 } 806 p(icps_reflect, "\t%lu message response%s generated\n"); 807 p2(icps_badaddr, "\t%lu invalid return address%s\n"); 808 p(icps_noroute, "\t%lu no return route%s\n"); 809 #undef p 810 #undef p1a 811 #undef p2 812 mib[3] = ICMPCTL_MASKREPL; 813 len = sizeof i; 814 if (sysctl(mib, 4, &i, &len, NULL, 0) < 0) 815 return; 816 printf("\tICMP address mask responses are %sabled\n", 817 i ? "en" : "dis"); 818 } 819 820 /* 821 * Dump IGMP statistics structure. 822 */ 823 void 824 igmp_stats(u_long off __unused, const char *name, int af1 __unused) 825 { 826 struct igmpstat igmpstat, zerostat; 827 size_t len = sizeof igmpstat; 828 829 if (zflag) 830 memset(&zerostat, 0, len); 831 if (sysctlbyname("net.inet.igmp.stats", &igmpstat, &len, 832 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 833 warn("sysctl: net.inet.igmp.stats"); 834 return; 835 } 836 837 printf("%s:\n", name); 838 839 #define p(f, m) if (igmpstat.f || sflag <= 1) \ 840 printf(m, igmpstat.f, plural(igmpstat.f)) 841 #define py(f, m) if (igmpstat.f || sflag <= 1) \ 842 printf(m, igmpstat.f, igmpstat.f != 1 ? "ies" : "y") 843 p(igps_rcv_total, "\t%u message%s received\n"); 844 p(igps_rcv_tooshort, "\t%u message%s received with too few bytes\n"); 845 p(igps_rcv_badsum, "\t%u message%s received with bad checksum\n"); 846 py(igps_rcv_queries, "\t%u membership quer%s received\n"); 847 py(igps_rcv_badqueries, "\t%u membership quer%s received with invalid field(s)\n"); 848 p(igps_rcv_reports, "\t%u membership report%s received\n"); 849 p(igps_rcv_badreports, "\t%u membership report%s received with invalid field(s)\n"); 850 p(igps_rcv_ourreports, "\t%u membership report%s received for groups to which we belong\n"); 851 p(igps_snd_reports, "\t%u membership report%s sent\n"); 852 #undef p 853 #undef py 854 } 855 856 /* 857 * Dump PIM statistics structure. 858 */ 859 void 860 pim_stats(u_long off __unused, const char *name, int af1 __unused) 861 { 862 struct pimstat pimstat, zerostat; 863 size_t len = sizeof pimstat; 864 865 if (zflag) 866 memset(&zerostat, 0, len); 867 if (sysctlbyname("net.inet.pim.stats", &pimstat, &len, 868 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 869 if (errno != ENOENT) 870 warn("sysctl: net.inet.pim.stats"); 871 return; 872 } 873 874 printf("%s:\n", name); 875 876 #define p(f, m) if (pimstat.f || sflag <= 1) \ 877 printf(m, (uintmax_t)pimstat.f, plural(pimstat.f)) 878 #define py(f, m) if (pimstat.f || sflag <= 1) \ 879 printf(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y") 880 p(pims_rcv_total_msgs, "\t%ju message%s received\n"); 881 p(pims_rcv_total_bytes, "\t%ju byte%s received\n"); 882 p(pims_rcv_tooshort, "\t%ju message%s received with too few bytes\n"); 883 p(pims_rcv_badsum, "\t%ju message%s received with bad checksum\n"); 884 p(pims_rcv_badversion, "\t%ju message%s received with bad version\n"); 885 p(pims_rcv_registers_msgs, "\t%ju data register message%s received\n"); 886 p(pims_rcv_registers_bytes, "\t%ju data register byte%s received\n"); 887 p(pims_rcv_registers_wrongiif, "\t%ju data register message%s received on wrong iif\n"); 888 p(pims_rcv_badregisters, "\t%ju bad register%s received\n"); 889 p(pims_snd_registers_msgs, "\t%ju data register message%s sent\n"); 890 p(pims_snd_registers_bytes, "\t%ju data register byte%s sent\n"); 891 #undef p 892 #undef py 893 } 894 895 /* 896 * Pretty print an Internet address (net address + port). 897 */ 898 void 899 inetprint(struct in_addr *in, int port, const char *proto, int num_port) 900 { 901 struct servent *sp = NULL; 902 char line[80], *cp; 903 int width; 904 905 if (Wflag) 906 sprintf(line, "%s.", inetname(in)); 907 else 908 sprintf(line, "%.*s.", (Aflag && !num_port) ? 12 : 16, inetname(in)); 909 cp = strchr(line, '\0'); 910 if (!num_port && port) 911 sp = getservbyport((int)port, proto); 912 if (sp || port == 0) 913 sprintf(cp, "%.15s ", sp ? sp->s_name : "*"); 914 else 915 sprintf(cp, "%d ", ntohs((u_short)port)); 916 width = (Aflag && !Wflag) ? 17 : 21; 917 if (Wflag) 918 printf("%-*s ", width, line); 919 else 920 printf("%-*.*s ", width, width, line); 921 } 922 923 /* 924 * Construct an Internet address representation. 925 * If numeric_addr has been supplied, give 926 * numeric value, otherwise try for symbolic name. 927 */ 928 char * 929 inetname(struct in_addr *inp) 930 { 931 char *cp; 932 static char line[MAXHOSTNAMELEN]; 933 struct hostent *hp; 934 struct netent *np; 935 936 cp = NULL; 937 if (!numeric_addr && inp->s_addr != INADDR_ANY) { 938 int net = inet_netof(*inp); 939 int lna = inet_lnaof(*inp); 940 941 if (lna == INADDR_ANY) { 942 np = getnetbyaddr(net, AF_INET); 943 if (np) 944 cp = np->n_name; 945 } 946 if (cp == NULL) { 947 hp = gethostbyaddr(inp, sizeof (*inp), AF_INET); 948 if (hp) { 949 cp = hp->h_name; 950 trimdomain(cp, strlen(cp)); 951 } 952 } 953 } 954 if (inp->s_addr == INADDR_ANY) 955 strcpy(line, "*"); 956 else if (cp) { 957 strncpy(line, cp, sizeof(line) - 1); 958 line[sizeof(line) - 1] = '\0'; 959 } else { 960 inp->s_addr = ntohl(inp->s_addr); 961 #define C(x) ((u_int)((x) & 0xff)) 962 sprintf(line, "%u.%u.%u.%u", C(inp->s_addr >> 24), 963 C(inp->s_addr >> 16), C(inp->s_addr >> 8), C(inp->s_addr)); 964 } 965 return (line); 966 } 967