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 p2(tcps_sackrescue, tcps_sackrescue_try, 454 "\t\t%lu SACK rescue packet%s sent (of %lu attempt%s)\n"); 455 p2a(tcps_sndfastrexmit, tcps_sndearlyrexmit, 456 "\t\t%lu Fast Retransmit%s (%lu early)\n"); 457 p(tcps_sndlimited, "\t\t%lu packet%s sent by Limited Transmit\n"); 458 p2(tcps_sndrtobad, tcps_eifelresponse, 459 "\t\t%lu spurious RTO retransmit%s (%lu Eifel-response%s)\n"); 460 p2a(tcps_sndfastrexmitbad, tcps_sndearlyrexmitbad, 461 "\t\t%lu spurious Fast Retransmit%s (%lu early)\n"); 462 p2a(tcps_eifeldetected, tcps_rttcantdetect, 463 "\t\t%lu Eifel-detected spurious retransmit%s (%lu non-RTT)\n"); 464 p(tcps_rttdetected, "\t\t%lu RTT-detected spurious retransmit%s\n"); 465 p(tcps_mturesent, "\t\t%lu resend%s initiated by MTU discovery\n"); 466 p(tcps_sndsackopt, "\t\t%lu SACK option%s sent\n"); 467 p(tcps_snddsackopt, "\t\t%lu D-SACK option%s sent\n"); 468 p2a(tcps_sndacks, tcps_delack, 469 "\t\t%lu ack-only packet%s (%lu delayed)\n"); 470 p(tcps_sndurg, "\t\t%lu URG only packet%s\n"); 471 p(tcps_sndprobe, "\t\t%lu window probe packet%s\n"); 472 p(tcps_sndwinup, "\t\t%lu window update packet%s\n"); 473 p(tcps_sndctrl, "\t\t%lu control packet%s\n"); 474 p(tcps_rcvtotal, "\t%lu packet%s received\n"); 475 p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t%lu ack%s (for %lu byte%s)\n"); 476 p(tcps_rcvdupack, "\t\t%lu duplicate ack%s\n"); 477 p(tcps_rcvacktoomuch, "\t\t%lu ack%s for unsent data\n"); 478 p2(tcps_rcvpack, tcps_rcvbyte, 479 "\t\t%lu packet%s (%lu byte%s) received in-sequence\n"); 480 p2(tcps_rcvduppack, tcps_rcvdupbyte, 481 "\t\t%lu completely duplicate packet%s (%lu byte%s)\n"); 482 p2(tcps_pawsdrop, tcps_pawsaccept, 483 "\t\t%lu old duplicate packet%s (%lu packet%s accepted)\n"); 484 p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte, 485 "\t\t%lu packet%s with some dup. data (%lu byte%s duped)\n"); 486 p2(tcps_rcvoopack, tcps_rcvoobyte, 487 "\t\t%lu out-of-order packet%s (%lu byte%s)\n"); 488 p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin, 489 "\t\t%lu packet%s (%lu byte%s) of data after window\n"); 490 p(tcps_rcvwinprobe, "\t\t%lu window probe%s\n"); 491 p(tcps_rcvwinupd, "\t\t%lu window update packet%s\n"); 492 p(tcps_rcvafterclose, "\t\t%lu packet%s received after close\n"); 493 p(tcps_rcvbadsum, "\t\t%lu discarded for bad checksum%s\n"); 494 p(tcps_rcvbadoff, "\t\t%lu discarded for bad header offset field%s\n"); 495 p1a(tcps_rcvshort, "\t\t%lu discarded because packet too short\n"); 496 p(tcps_rcvbadsackopt, "\t\t%lu bad SACK option%s\n"); 497 p1a(tcps_sackrenege, "\t\t%lu other side reneged\n"); 498 p(tcps_connattempt, "\t%lu connection request%s\n"); 499 p(tcps_accepts, "\t%lu connection accept%s\n"); 500 p(tcps_badsyn, "\t%lu bad connection attempt%s\n"); 501 p(tcps_listendrop, "\t%lu listen queue overflow%s\n"); 502 p(tcps_connects, "\t%lu connection%s established (including accepts)\n"); 503 p2(tcps_closed, tcps_drops, 504 "\t%lu connection%s closed (including %lu drop%s)\n"); 505 p(tcps_cachedrtt, "\t\t%lu connection%s updated cached RTT on close\n"); 506 p(tcps_cachedrttvar, 507 "\t\t%lu connection%s updated cached RTT variance on close\n"); 508 p(tcps_cachedssthresh, 509 "\t\t%lu connection%s updated cached ssthresh on close\n"); 510 p(tcps_conndrops, "\t%lu embryonic connection%s dropped\n"); 511 p2(tcps_rttupdated, tcps_segstimed, 512 "\t%lu segment%s updated rtt (of %lu attempt%s)\n"); 513 p(tcps_rexmttimeo, "\t%lu retransmit timeout%s\n"); 514 p(tcps_timeoutdrop, "\t\t%lu connection%s dropped by rexmit timeout\n"); 515 p(tcps_persisttimeo, "\t%lu persist timeout%s\n"); 516 p(tcps_persistdrop, "\t\t%lu connection%s dropped by persist timeout\n"); 517 p(tcps_keeptimeo, "\t%lu keepalive timeout%s\n"); 518 p(tcps_keepprobe, "\t\t%lu keepalive probe%s sent\n"); 519 p(tcps_keepdrops, "\t\t%lu connection%s dropped by keepalive\n"); 520 p(tcps_predack, "\t%lu correct ACK header prediction%s\n"); 521 p(tcps_preddat, "\t%lu correct data packet header prediction%s\n"); 522 p(tcps_sndidle, "\t%lu send idle%s\n"); 523 524 p1a(tcps_sc_added, "\t%lu syncache entries added\n"); 525 p1a(tcps_sc_retransmitted, "\t\t%lu retransmitted\n"); 526 p1a(tcps_sc_dupsyn, "\t\t%lu dupsyn\n"); 527 p1a(tcps_sc_dropped, "\t\t%lu dropped\n"); 528 p1a(tcps_sc_completed, "\t\t%lu completed\n"); 529 p1a(tcps_sc_bucketoverflow, "\t\t%lu bucket overflow\n"); 530 p1a(tcps_sc_cacheoverflow, "\t\t%lu cache overflow\n"); 531 p1a(tcps_sc_reset, "\t\t%lu reset\n"); 532 p1a(tcps_sc_stale, "\t\t%lu stale\n"); 533 p1a(tcps_sc_aborted, "\t\t%lu aborted\n"); 534 p1a(tcps_sc_badack, "\t\t%lu badack\n"); 535 p1a(tcps_sc_unreach, "\t\t%lu unreach\n"); 536 p1a(tcps_sc_zonefail, "\t\t%lu zone failures\n"); 537 p1a(tcps_sc_sendcookie, "\t\t%lu cookies sent\n"); 538 p1a(tcps_sc_recvcookie, "\t\t%lu cookies received\n"); 539 540 p(tcps_sacksbupdate, "\t%lu SACK scoreboard update%s\n"); 541 p(tcps_sacksboverflow, "\t\t%lu overflow%s\n"); 542 p(tcps_sacksbfailed, "\t\t%lu failure%s\n"); 543 p(tcps_sacksbreused, "\t\t%lu record%s reused\n"); 544 p(tcps_sacksbfast, "\t\t%lu record%s fast allocated\n"); 545 546 free(stattmp); 547 #undef p 548 #undef p1a 549 #undef p2 550 #undef p2a 551 #undef p3 552 } 553 554 /* 555 * Dump UDP statistics structure. 556 */ 557 void 558 udp_stats(u_long off __unused, const char *name, int af1 __unused) 559 { 560 struct udpstat udpstat, zerostat; 561 size_t len = sizeof udpstat; 562 u_long delivered; 563 564 if (zflag) 565 memset(&zerostat, 0, len); 566 if (sysctlbyname("net.inet.udp.stats", &udpstat, &len, 567 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 568 warn("sysctl: net.inet.udp.stats"); 569 return; 570 } 571 572 #ifdef INET6 573 if (udp_done != 0) 574 return; 575 else 576 udp_done = 1; 577 #endif 578 579 printf("%s:\n", name); 580 #define p(f, m) if (udpstat.f || sflag <= 1) \ 581 printf(m, udpstat.f, plural(udpstat.f)) 582 #define p1a(f, m) if (udpstat.f || sflag <= 1) \ 583 printf(m, udpstat.f) 584 p(udps_ipackets, "\t%lu datagram%s received\n"); 585 p1a(udps_hdrops, "\t%lu with incomplete header\n"); 586 p1a(udps_badlen, "\t%lu with bad data length field\n"); 587 p1a(udps_badsum, "\t%lu with bad checksum\n"); 588 p1a(udps_nosum, "\t%lu with no checksum\n"); 589 p1a(udps_noport, "\t%lu dropped due to no socket\n"); 590 p(udps_noportbcast, 591 "\t%lu broadcast/multicast datagram%s dropped due to no socket\n"); 592 p1a(udps_fullsock, "\t%lu dropped due to full socket buffers\n"); 593 p1a(udpps_pcbhashmiss, "\t%lu not for hashed pcb\n"); 594 delivered = udpstat.udps_ipackets - 595 udpstat.udps_hdrops - 596 udpstat.udps_badlen - 597 udpstat.udps_badsum - 598 udpstat.udps_noport - 599 udpstat.udps_noportbcast - 600 udpstat.udps_fullsock; 601 if (delivered || sflag <= 1) 602 printf("\t%lu delivered\n", delivered); 603 p(udps_opackets, "\t%lu datagram%s output\n"); 604 #undef p 605 #undef p1a 606 } 607 608 /* 609 * Dump CARP statistics structure. 610 */ 611 void 612 carp_stats(u_long off __unused, const char *name, int af1 __unused) 613 { 614 struct carpstats carpstat, zerostat; 615 size_t len = sizeof(struct carpstats); 616 617 if (zflag) 618 memset(&zerostat, 0, len); 619 if (sysctlbyname("net.inet.carp.stats", &carpstat, &len, 620 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 621 warn("sysctl: net.inet.carp.stats"); 622 return; 623 } 624 625 printf("%s:\n", name); 626 627 #define p(f, m) if (carpstat.f || sflag <= 1) \ 628 printf(m, (uintmax_t)carpstat.f, plural((int)carpstat.f)) 629 #define p2(f, m) if (carpstat.f || sflag <= 1) \ 630 printf(m, (uintmax_t)carpstat.f) 631 632 p(carps_ipackets, "\t%ju packet%s received (IPv4)\n"); 633 p(carps_ipackets6, "\t%ju packet%s received (IPv6)\n"); 634 p(carps_badttl, "\t\t%ju packet%s discarded for wrong TTL\n"); 635 p(carps_hdrops, "\t\t%ju packet%s shorter than header\n"); 636 p(carps_badsum, "\t\t%ju discarded for bad checksum%s\n"); 637 p(carps_badver, "\t\t%ju discarded packet%s with a bad version\n"); 638 p2(carps_badlen, "\t\t%ju discarded because packet too short\n"); 639 p2(carps_badauth, "\t\t%ju discarded for bad authentication\n"); 640 p2(carps_badvhid, "\t\t%ju discarded for bad vhid\n"); 641 p2(carps_badaddrs, "\t\t%ju discarded because of a bad address list\n"); 642 p(carps_opackets, "\t%ju packet%s sent (IPv4)\n"); 643 p(carps_opackets6, "\t%ju packet%s sent (IPv6)\n"); 644 p2(carps_onomem, "\t\t%ju send failed due to mbuf memory error\n"); 645 #if notyet 646 p(carps_ostates, "\t\t%s state update%s sent\n"); 647 #endif 648 #undef p 649 #undef p2 650 } 651 652 /* 653 * Dump IP statistics structure. 654 */ 655 void 656 ip_stats(u_long off __unused, const char *name, int af1 __unused) 657 { 658 struct ip_stats ipstat, *stattmp; 659 struct ip_stats zerostat[SMP_MAXCPU]; 660 size_t len = sizeof(struct ip_stats) * SMP_MAXCPU; 661 int cpucnt; 662 663 if (zflag) 664 memset(zerostat, 0, len); 665 if ((stattmp = malloc(len)) == NULL) { 666 return; 667 } else { 668 if (sysctlbyname("net.inet.ip.stats", stattmp, &len, 669 zflag ? zerostat : NULL, zflag ? len : 0) < 0) { 670 warn("sysctl: net.inet.ip.stats"); 671 free(stattmp); 672 return; 673 } else { 674 if ((stattmp = realloc(stattmp, len)) == NULL) { 675 warn("ip_stats"); 676 return; 677 } 678 } 679 } 680 cpucnt = len / sizeof(struct ip_stats); 681 ip_stats_agg(stattmp, &ipstat, cpucnt); 682 683 printf("%s:\n", name); 684 685 #define p(f, m) if (ipstat.f || sflag <= 1) \ 686 printf(m, ipstat.f, plural(ipstat.f)) 687 #define p1a(f, m) if (ipstat.f || sflag <= 1) \ 688 printf(m, ipstat.f) 689 690 p(ips_total, "\t%lu total packet%s received\n"); 691 p(ips_badsum, "\t%lu bad header checksum%s\n"); 692 p1a(ips_toosmall, "\t%lu with size smaller than minimum\n"); 693 p1a(ips_tooshort, "\t%lu with data size < data length\n"); 694 p1a(ips_toolong, "\t%lu with ip length > max ip packet size\n"); 695 p1a(ips_badhlen, "\t%lu with header length < data size\n"); 696 p1a(ips_badlen, "\t%lu with data length < header length\n"); 697 p1a(ips_badoptions, "\t%lu with bad options\n"); 698 p1a(ips_badvers, "\t%lu with incorrect version number\n"); 699 p(ips_fragments, "\t%lu fragment%s received\n"); 700 p(ips_fragdropped, "\t%lu fragment%s dropped (dup or out of space)\n"); 701 p(ips_fragtimeout, "\t%lu fragment%s dropped after timeout\n"); 702 p(ips_reassembled, "\t%lu packet%s reassembled ok\n"); 703 p(ips_delivered, "\t%lu packet%s for this host\n"); 704 p(ips_noproto, "\t%lu packet%s for unknown/unsupported protocol\n"); 705 p(ips_forward, "\t%lu packet%s forwarded"); 706 p(ips_fastforward, " (%lu packet%s fast forwarded)"); 707 if (ipstat.ips_forward || sflag <= 1) 708 putchar('\n'); 709 p(ips_cantforward, "\t%lu packet%s not forwardable\n"); 710 p(ips_notmember, 711 "\t%lu packet%s received for unknown multicast group\n"); 712 p(ips_redirectsent, "\t%lu redirect%s sent\n"); 713 p(ips_localout, "\t%lu packet%s sent from this host\n"); 714 p(ips_rawout, "\t%lu packet%s sent with fabricated ip header\n"); 715 p(ips_odropped, 716 "\t%lu output packet%s dropped due to no bufs, etc.\n"); 717 p(ips_noroute, "\t%lu output packet%s discarded due to no route\n"); 718 p(ips_fragmented, "\t%lu output datagram%s fragmented\n"); 719 p(ips_ofragments, "\t%lu fragment%s created\n"); 720 p(ips_cantfrag, "\t%lu datagram%s that can't be fragmented\n"); 721 p(ips_nogif, "\t%lu tunneling packet%s that can't find gif\n"); 722 p(ips_badaddr, "\t%lu datagram%s with bad address in header\n"); 723 free(stattmp); 724 #undef p 725 #undef p1a 726 } 727 728 static const char *icmpnames[] = { 729 "echo reply", 730 "#1", 731 "#2", 732 "destination unreachable", 733 "source quench", 734 "routing redirect", 735 "#6", 736 "#7", 737 "echo", 738 "router advertisement", 739 "router solicitation", 740 "time exceeded", 741 "parameter problem", 742 "time stamp", 743 "time stamp reply", 744 "information request", 745 "information request reply", 746 "address mask request", 747 "address mask reply", 748 }; 749 750 /* 751 * Dump ICMP statistics. 752 */ 753 void 754 icmp_stats(u_long off __unused, const char *name, int af1 __unused) 755 { 756 struct icmpstat icmpstat, zerostat; 757 int i, first; 758 int mib[4]; /* CTL_NET + PF_INET + IPPROTO_ICMP + req */ 759 size_t len; 760 761 mib[0] = CTL_NET; 762 mib[1] = PF_INET; 763 mib[2] = IPPROTO_ICMP; 764 mib[3] = ICMPCTL_STATS; 765 766 len = sizeof icmpstat; 767 if (zflag) 768 memset(&zerostat, 0, len); 769 if (sysctl(mib, 4, &icmpstat, &len, 770 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 771 warn("sysctl: net.inet.icmp.stats"); 772 return; 773 } 774 775 printf("%s:\n", name); 776 777 #define p(f, m) if (icmpstat.f || sflag <= 1) \ 778 printf(m, icmpstat.f, plural(icmpstat.f)) 779 #define p1a(f, m) if (icmpstat.f || sflag <= 1) \ 780 printf(m, icmpstat.f) 781 #define p2(f, m) if (icmpstat.f || sflag <= 1) \ 782 printf(m, icmpstat.f, plurales(icmpstat.f)) 783 784 p(icps_error, "\t%lu call%s to icmp_error\n"); 785 p(icps_oldicmp, 786 "\t%lu error%s not generated 'cuz old message was icmp\n"); 787 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 788 if (icmpstat.icps_outhist[i] != 0) { 789 if (first) { 790 printf("\tOutput histogram:\n"); 791 first = 0; 792 } 793 printf("\t\t%s: %lu\n", icmpnames[i], 794 icmpstat.icps_outhist[i]); 795 } 796 p(icps_badcode, "\t%lu message%s with bad code fields\n"); 797 p(icps_tooshort, "\t%lu message%s < minimum length\n"); 798 p(icps_checksum, "\t%lu bad checksum%s\n"); 799 p(icps_badlen, "\t%lu message%s with bad length\n"); 800 p1a(icps_bmcastecho, "\t%lu multicast echo requests ignored\n"); 801 p1a(icps_bmcasttstamp, "\t%lu multicast timestamp requests ignored\n"); 802 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 803 if (icmpstat.icps_inhist[i] != 0) { 804 if (first) { 805 printf("\tInput histogram:\n"); 806 first = 0; 807 } 808 printf("\t\t%s: %lu\n", icmpnames[i], 809 icmpstat.icps_inhist[i]); 810 } 811 p(icps_reflect, "\t%lu message response%s generated\n"); 812 p2(icps_badaddr, "\t%lu invalid return address%s\n"); 813 p(icps_noroute, "\t%lu no return route%s\n"); 814 #undef p 815 #undef p1a 816 #undef p2 817 mib[3] = ICMPCTL_MASKREPL; 818 len = sizeof i; 819 if (sysctl(mib, 4, &i, &len, NULL, 0) < 0) 820 return; 821 printf("\tICMP address mask responses are %sabled\n", 822 i ? "en" : "dis"); 823 } 824 825 /* 826 * Dump IGMP statistics structure. 827 */ 828 void 829 igmp_stats(u_long off __unused, const char *name, int af1 __unused) 830 { 831 struct igmpstat igmpstat, zerostat; 832 size_t len = sizeof igmpstat; 833 834 if (zflag) 835 memset(&zerostat, 0, len); 836 if (sysctlbyname("net.inet.igmp.stats", &igmpstat, &len, 837 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 838 warn("sysctl: net.inet.igmp.stats"); 839 return; 840 } 841 842 printf("%s:\n", name); 843 844 #define p(f, m) if (igmpstat.f || sflag <= 1) \ 845 printf(m, igmpstat.f, plural(igmpstat.f)) 846 #define py(f, m) if (igmpstat.f || sflag <= 1) \ 847 printf(m, igmpstat.f, igmpstat.f != 1 ? "ies" : "y") 848 p(igps_rcv_total, "\t%u message%s received\n"); 849 p(igps_rcv_tooshort, "\t%u message%s received with too few bytes\n"); 850 p(igps_rcv_badsum, "\t%u message%s received with bad checksum\n"); 851 py(igps_rcv_queries, "\t%u membership quer%s received\n"); 852 py(igps_rcv_badqueries, "\t%u membership quer%s received with invalid field(s)\n"); 853 p(igps_rcv_reports, "\t%u membership report%s received\n"); 854 p(igps_rcv_badreports, "\t%u membership report%s received with invalid field(s)\n"); 855 p(igps_rcv_ourreports, "\t%u membership report%s received for groups to which we belong\n"); 856 p(igps_snd_reports, "\t%u membership report%s sent\n"); 857 #undef p 858 #undef py 859 } 860 861 /* 862 * Dump PIM statistics structure. 863 */ 864 void 865 pim_stats(u_long off __unused, const char *name, int af1 __unused) 866 { 867 struct pimstat pimstat, zerostat; 868 size_t len = sizeof pimstat; 869 870 if (zflag) 871 memset(&zerostat, 0, len); 872 if (sysctlbyname("net.inet.pim.stats", &pimstat, &len, 873 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 874 if (errno != ENOENT) 875 warn("sysctl: net.inet.pim.stats"); 876 return; 877 } 878 879 printf("%s:\n", name); 880 881 #define p(f, m) if (pimstat.f || sflag <= 1) \ 882 printf(m, (uintmax_t)pimstat.f, plural(pimstat.f)) 883 #define py(f, m) if (pimstat.f || sflag <= 1) \ 884 printf(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y") 885 p(pims_rcv_total_msgs, "\t%ju message%s received\n"); 886 p(pims_rcv_total_bytes, "\t%ju byte%s received\n"); 887 p(pims_rcv_tooshort, "\t%ju message%s received with too few bytes\n"); 888 p(pims_rcv_badsum, "\t%ju message%s received with bad checksum\n"); 889 p(pims_rcv_badversion, "\t%ju message%s received with bad version\n"); 890 p(pims_rcv_registers_msgs, "\t%ju data register message%s received\n"); 891 p(pims_rcv_registers_bytes, "\t%ju data register byte%s received\n"); 892 p(pims_rcv_registers_wrongiif, "\t%ju data register message%s received on wrong iif\n"); 893 p(pims_rcv_badregisters, "\t%ju bad register%s received\n"); 894 p(pims_snd_registers_msgs, "\t%ju data register message%s sent\n"); 895 p(pims_snd_registers_bytes, "\t%ju data register byte%s sent\n"); 896 #undef p 897 #undef py 898 } 899 900 /* 901 * Pretty print an Internet address (net address + port). 902 */ 903 void 904 inetprint(struct in_addr *in, int port, const char *proto, int num_port) 905 { 906 struct servent *sp = NULL; 907 char line[80], *cp; 908 int width; 909 910 if (Wflag) 911 sprintf(line, "%s.", inetname(in)); 912 else 913 sprintf(line, "%.*s.", (Aflag && !num_port) ? 12 : 16, inetname(in)); 914 cp = strchr(line, '\0'); 915 if (!num_port && port) 916 sp = getservbyport((int)port, proto); 917 if (sp || port == 0) 918 sprintf(cp, "%.15s ", sp ? sp->s_name : "*"); 919 else 920 sprintf(cp, "%d ", ntohs((u_short)port)); 921 width = (Aflag && !Wflag) ? 17 : 21; 922 if (Wflag) 923 printf("%-*s ", width, line); 924 else 925 printf("%-*.*s ", width, width, line); 926 } 927 928 /* 929 * Construct an Internet address representation. 930 * If numeric_addr has been supplied, give 931 * numeric value, otherwise try for symbolic name. 932 */ 933 char * 934 inetname(struct in_addr *inp) 935 { 936 char *cp; 937 static char line[MAXHOSTNAMELEN]; 938 struct hostent *hp; 939 struct netent *np; 940 941 cp = NULL; 942 if (!numeric_addr && inp->s_addr != INADDR_ANY) { 943 int net = inet_netof(*inp); 944 int lna = inet_lnaof(*inp); 945 946 if (lna == INADDR_ANY) { 947 np = getnetbyaddr(net, AF_INET); 948 if (np) 949 cp = np->n_name; 950 } 951 if (cp == NULL) { 952 hp = gethostbyaddr(inp, sizeof (*inp), AF_INET); 953 if (hp) { 954 cp = hp->h_name; 955 trimdomain(cp, strlen(cp)); 956 } 957 } 958 } 959 if (inp->s_addr == INADDR_ANY) 960 strcpy(line, "*"); 961 else if (cp) { 962 strncpy(line, cp, sizeof(line) - 1); 963 line[sizeof(line) - 1] = '\0'; 964 } else { 965 inp->s_addr = ntohl(inp->s_addr); 966 #define C(x) ((u_int)((x) & 0xff)) 967 sprintf(line, "%u.%u.%u.%u", C(inp->s_addr >> 24), 968 C(inp->s_addr >> 16), C(inp->s_addr >> 8), C(inp->s_addr)); 969 } 970 return (line); 971 } 972