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 * $DragonFly: src/usr.bin/netstat/inet.c,v 1.12 2004/04/07 17:01:27 dillon Exp $ 36 */ 37 38 #include <sys/param.h> 39 #include <sys/queue.h> 40 #include <sys/socket.h> 41 #include <sys/socketvar.h> 42 #include <sys/sysctl.h> 43 #include <sys/protosw.h> 44 45 #include <net/route.h> 46 #include <netinet/in.h> 47 #include <netinet/in_systm.h> 48 #include <netinet/ip.h> 49 #ifdef INET6 50 #include <netinet/ip6.h> 51 #endif /* INET6 */ 52 #include <netinet/in_pcb.h> 53 #include <netinet/ip_icmp.h> 54 #include <netinet/icmp_var.h> 55 #include <netinet/igmp_var.h> 56 #include <netinet/ip_var.h> 57 #include <netinet/pim_var.h> 58 #include <netinet/tcp.h> 59 #include <netinet/tcpip.h> 60 #include <netinet/tcp_seq.h> 61 #define TCPSTATES 62 #include <netinet/tcp_fsm.h> 63 #include <netinet/tcp_timer.h> 64 #include <netinet/tcp_var.h> 65 #include <netinet/tcp_debug.h> 66 #include <netinet/udp.h> 67 #include <netinet/udp_var.h> 68 69 #include <arpa/inet.h> 70 #include <err.h> 71 #include <errno.h> 72 #include <libutil.h> 73 #include <netdb.h> 74 #include <stdio.h> 75 #include <stdlib.h> 76 #include <string.h> 77 #include <unistd.h> 78 #include "netstat.h" 79 80 char *inetname (struct in_addr *); 81 void inetprint (struct in_addr *, int, char *, int); 82 #ifdef INET6 83 extern void inet6print (struct in6_addr *, int, char *, int); 84 static int udp_done, tcp_done; 85 #endif /* INET6 */ 86 87 /* 88 * Print a summary of connections related to an Internet 89 * protocol. For TCP, also give state of connection. 90 * Listening processes (aflag) are suppressed unless the 91 * -a (all) flag is specified. 92 */ 93 void 94 protopr(u_long proto, /* for sysctl version we pass proto # */ 95 char *name, int af) 96 { 97 int istcp; 98 static int first = 1; 99 char *buf; 100 const char *mibvar, *vchar; 101 struct tcpcb *tp = NULL; 102 struct inpcb *inp; 103 struct xinpgen *xig, *oxig; 104 struct xsocket *so; 105 size_t len; 106 107 istcp = 0; 108 switch (proto) { 109 case IPPROTO_TCP: 110 #ifdef INET6 111 if (tcp_done != 0) 112 return; 113 else 114 tcp_done = 1; 115 #endif 116 istcp = 1; 117 mibvar = "net.inet.tcp.pcblist"; 118 break; 119 case IPPROTO_UDP: 120 #ifdef INET6 121 if (udp_done != 0) 122 return; 123 else 124 udp_done = 1; 125 #endif 126 mibvar = "net.inet.udp.pcblist"; 127 break; 128 case IPPROTO_DIVERT: 129 mibvar = "net.inet.divert.pcblist"; 130 break; 131 default: 132 mibvar = "net.inet.raw.pcblist"; 133 break; 134 } 135 len = 0; 136 if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) { 137 if (errno != ENOENT) 138 warn("sysctl: %s", mibvar); 139 return; 140 } 141 if ((buf = malloc(len)) == 0) { 142 warn("malloc %lu bytes", (u_long)len); 143 return; 144 } 145 if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) { 146 warn("sysctl: %s", mibvar); 147 free(buf); 148 return; 149 } 150 151 oxig = xig = (struct xinpgen *)buf; 152 for (xig = (struct xinpgen *)((char *)xig + xig->xig_len); 153 xig->xig_len > sizeof(struct xinpgen); 154 xig = (struct xinpgen *)((char *)xig + xig->xig_len)) { 155 if (istcp) { 156 tp = &((struct xtcpcb *)xig)->xt_tp; 157 inp = &((struct xtcpcb *)xig)->xt_inp; 158 so = &((struct xtcpcb *)xig)->xt_socket; 159 } else { 160 inp = &((struct xinpcb *)xig)->xi_inp; 161 so = &((struct xinpcb *)xig)->xi_socket; 162 } 163 164 /* Ignore sockets for protocols other than the desired one. */ 165 if (so->xso_protocol != (int)proto) 166 continue; 167 168 /* Ignore PCBs which were freed during copyout. */ 169 if (inp->inp_gencnt > oxig->xig_gen) 170 continue; 171 172 if ((af == AF_INET && (inp->inp_vflag & INP_IPV4) == 0) 173 #ifdef INET6 174 || (af == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0) 175 #endif /* INET6 */ 176 || (af == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0 177 #ifdef INET6 178 && (inp->inp_vflag & 179 INP_IPV6) == 0 180 #endif /* INET6 */ 181 )) 182 ) 183 continue; 184 if (!aflag && 185 ( 186 (af == AF_INET && 187 inet_lnaof(inp->inp_laddr) == INADDR_ANY) 188 #ifdef INET6 189 || (af == AF_INET6 && 190 IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) 191 #endif /* INET6 */ 192 || (af == AF_UNSPEC && 193 (((inp->inp_vflag & INP_IPV4) != 0 && 194 inet_lnaof(inp->inp_laddr) == INADDR_ANY) 195 #ifdef INET6 196 || ((inp->inp_vflag & INP_IPV6) != 0 && 197 IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) 198 #endif 199 )) 200 )) 201 continue; 202 203 if (first) { 204 if (!Lflag) { 205 printf("Active Internet connections"); 206 if (aflag) 207 printf(" (including servers)"); 208 } else 209 printf( 210 "Current listen queue sizes (qlen/incqlen/maxqlen)"); 211 putchar('\n'); 212 if (Aflag) 213 printf("%-8.8s ", "Socket"); 214 if (Lflag) 215 printf("%-5.5s %-14.14s %-22.22s\n", 216 "Proto", "Listen", "Local Address"); 217 else 218 printf((Aflag && !Wflag) ? 219 "%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s %s\n" : 220 "%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s %s\n", 221 "Proto", "Recv-Q", "Send-Q", 222 "Local Address", "Foreign Address", 223 "(state)"); 224 first = 0; 225 } 226 if (Lflag && so->so_qlimit == 0) 227 continue; 228 if (Aflag) { 229 if (istcp) 230 printf("%8lx ", (u_long)inp->inp_ppcb); 231 else 232 printf("%8lx ", (u_long)so->so_pcb); 233 } 234 #ifdef INET6 235 if ((inp->inp_vflag & INP_IPV6) != 0) 236 vchar = ((inp->inp_vflag & INP_IPV4) != 0) 237 ? "46" : "6 "; 238 else 239 #endif 240 vchar = ((inp->inp_vflag & INP_IPV4) != 0) 241 ? "4 " : " "; 242 printf("%-3.3s%-2.2s ", name, vchar); 243 if (Lflag) { 244 char buf[15]; 245 246 snprintf(buf, 15, "%d/%d/%d", so->so_qlen, 247 so->so_incqlen, so->so_qlimit); 248 printf("%-14.14s ", buf); 249 } else if (Bflag) { 250 printf("%6ld %6ld ", 251 so->so_rcv.sb_hiwat, 252 so->so_snd.sb_hiwat); 253 } else { 254 printf("%6ld %6ld ", 255 so->so_rcv.sb_cc, 256 so->so_snd.sb_cc); 257 } 258 if (numeric_port) { 259 if (inp->inp_vflag & INP_IPV4) { 260 inetprint(&inp->inp_laddr, (int)inp->inp_lport, 261 name, 1); 262 if (!Lflag) 263 inetprint(&inp->inp_faddr, 264 (int)inp->inp_fport, name, 1); 265 } 266 #ifdef INET6 267 else if (inp->inp_vflag & INP_IPV6) { 268 inet6print(&inp->in6p_laddr, 269 (int)inp->inp_lport, name, 1); 270 if (!Lflag) 271 inet6print(&inp->in6p_faddr, 272 (int)inp->inp_fport, name, 1); 273 } /* else nothing printed now */ 274 #endif /* INET6 */ 275 } else if (inp->inp_flags & INP_ANONPORT) { 276 if (inp->inp_vflag & INP_IPV4) { 277 inetprint(&inp->inp_laddr, (int)inp->inp_lport, 278 name, 1); 279 if (!Lflag) 280 inetprint(&inp->inp_faddr, 281 (int)inp->inp_fport, name, 0); 282 } 283 #ifdef INET6 284 else if (inp->inp_vflag & INP_IPV6) { 285 inet6print(&inp->in6p_laddr, 286 (int)inp->inp_lport, name, 1); 287 if (!Lflag) 288 inet6print(&inp->in6p_faddr, 289 (int)inp->inp_fport, name, 0); 290 } /* else nothing printed now */ 291 #endif /* INET6 */ 292 } else { 293 if (inp->inp_vflag & INP_IPV4) { 294 inetprint(&inp->inp_laddr, (int)inp->inp_lport, 295 name, 0); 296 if (!Lflag) 297 inetprint(&inp->inp_faddr, 298 (int)inp->inp_fport, name, 299 inp->inp_lport != 300 inp->inp_fport); 301 } 302 #ifdef INET6 303 else if (inp->inp_vflag & INP_IPV6) { 304 inet6print(&inp->in6p_laddr, 305 (int)inp->inp_lport, name, 0); 306 if (!Lflag) 307 inet6print(&inp->in6p_faddr, 308 (int)inp->inp_fport, name, 309 inp->inp_lport != 310 inp->inp_fport); 311 } /* else nothing printed now */ 312 #endif /* INET6 */ 313 } 314 if (istcp && !Lflag) { 315 if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES) 316 printf("%d", tp->t_state); 317 else { 318 printf("%s", tcpstates[tp->t_state]); 319 #if defined(TF_NEEDSYN) && defined(TF_NEEDFIN) 320 /* Show T/TCP `hidden state' */ 321 if (tp->t_flags & (TF_NEEDSYN|TF_NEEDFIN)) 322 putchar('*'); 323 #endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */ 324 } 325 } 326 putchar('\n'); 327 } 328 if (xig != oxig && xig->xig_gen != oxig->xig_gen) { 329 if (oxig->xig_count > xig->xig_count) { 330 printf("Some %s sockets may have been deleted.\n", 331 name); 332 } else if (oxig->xig_count < xig->xig_count) { 333 printf("Some %s sockets may have been created.\n", 334 name); 335 } else { 336 printf("Some %s sockets may have been created or deleted", 337 name); 338 } 339 } 340 free(buf); 341 } 342 343 void 344 tcp_stats_agg(struct tcp_stats *ary, struct tcp_stats *ttl, int cpucnt) 345 { 346 int i, off, siz; 347 siz = sizeof(struct tcp_stats); 348 349 if (!ary && !ttl) 350 return; 351 352 bzero(ttl, siz); 353 if (cpucnt == 1) { 354 *ttl = ary[0]; 355 } else { 356 for (i = 0; i < cpucnt; ++i) { 357 for (off = 0; off < siz; off += sizeof(u_long)) { 358 *(u_long *)((char *)(*(&ttl)) + off) += 359 *(u_long *)((char *)&ary[i] + off); 360 } 361 } 362 } 363 } 364 365 /* 366 * Dump TCP statistics structure. 367 */ 368 void 369 tcp_stats(u_long off __unused, char *name, int af __unused) 370 { 371 struct tcp_stats tcpstat, *stattmp; 372 struct tcp_stats zerostat[SMP_MAXCPU]; 373 size_t len = sizeof(struct tcp_stats) * SMP_MAXCPU; 374 int cpucnt; 375 376 if (zflag) 377 memset(zerostat, 0, len); 378 379 if ((stattmp = malloc(len)) == NULL) { 380 return; 381 } else { 382 if (sysctlbyname("net.inet.tcp.stats", stattmp, &len, 383 zflag ? zerostat : NULL, zflag ? len : 0) < 0) { 384 warn("sysctl: net.inet.tcp.stats"); 385 free(stattmp); 386 return; 387 } else { 388 if ((stattmp = realloc(stattmp, len)) == NULL) { 389 warn("tcp_stats"); 390 return; 391 } 392 } 393 } 394 cpucnt = len / sizeof(struct tcp_stats); 395 tcp_stats_agg(stattmp, &tcpstat, cpucnt); 396 397 #ifdef INET6 398 if (tcp_done != 0) 399 return; 400 else 401 tcp_done = 1; 402 #endif 403 404 printf ("%s:\n", name); 405 406 #define p(f, m) if (tcpstat.f || sflag <= 1) \ 407 printf(m, tcpstat.f, plural(tcpstat.f)) 408 #define p1a(f, m) if (tcpstat.f || sflag <= 1) \ 409 printf(m, tcpstat.f) 410 #define p2(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \ 411 printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2, plural(tcpstat.f2)) 412 #define p2a(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \ 413 printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2) 414 #define p3(f, m) if (tcpstat.f || sflag <= 1) \ 415 printf(m, tcpstat.f, plurales(tcpstat.f)) 416 417 p(tcps_sndtotal, "\t%lu packet%s sent\n"); 418 p2(tcps_sndpack,tcps_sndbyte, 419 "\t\t%lu data packet%s (%lu byte%s)\n"); 420 p2(tcps_sndrexmitpack, tcps_sndrexmitbyte, 421 "\t\t%lu data packet%s (%lu byte%s) retransmitted\n"); 422 p2a(tcps_sndfastrexmit, tcps_sndearlyrexmit, 423 "\t\t%lu Fast Retransmit%s (%lu early)\n"); 424 p(tcps_sndlimited, "\t\t%lu packet%s sent by Limited Transmit\n"); 425 p(tcps_sndrtobad, "\t\t%lu spurious RTO retransmit%s\n"); 426 p2a(tcps_sndfastrexmitbad, tcps_sndearlyrexmitbad, 427 "\t\t%lu spurious Fast Retransmit%s (%lu early)\n"); 428 p(tcps_eifeldetected, "\t\t%lu Eifel-detected spurious retransmit%s\n"); 429 p(tcps_rttdetected, "\t\t%lu RTT-detected spurious retransmit%s\n"); 430 p(tcps_mturesent, "\t\t%lu resend%s initiated by MTU discovery\n"); 431 p2a(tcps_sndacks, tcps_delack, 432 "\t\t%lu ack-only packet%s (%lu delayed)\n"); 433 p(tcps_sndurg, "\t\t%lu URG only packet%s\n"); 434 p(tcps_sndprobe, "\t\t%lu window probe packet%s\n"); 435 p(tcps_sndwinup, "\t\t%lu window update packet%s\n"); 436 p(tcps_sndctrl, "\t\t%lu control packet%s\n"); 437 p(tcps_rcvtotal, "\t%lu packet%s received\n"); 438 p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t%lu ack%s (for %lu byte%s)\n"); 439 p(tcps_rcvdupack, "\t\t%lu duplicate ack%s\n"); 440 p(tcps_rcvacktoomuch, "\t\t%lu ack%s for unsent data\n"); 441 p2(tcps_rcvpack, tcps_rcvbyte, 442 "\t\t%lu packet%s (%lu byte%s) received in-sequence\n"); 443 p2(tcps_rcvduppack, tcps_rcvdupbyte, 444 "\t\t%lu completely duplicate packet%s (%lu byte%s)\n"); 445 p(tcps_pawsdrop, "\t\t%lu old duplicate packet%s\n"); 446 p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte, 447 "\t\t%lu packet%s with some dup. data (%lu byte%s duped)\n"); 448 p2(tcps_rcvoopack, tcps_rcvoobyte, 449 "\t\t%lu out-of-order packet%s (%lu byte%s)\n"); 450 p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin, 451 "\t\t%lu packet%s (%lu byte%s) of data after window\n"); 452 p(tcps_rcvwinprobe, "\t\t%lu window probe%s\n"); 453 p(tcps_rcvwinupd, "\t\t%lu window update packet%s\n"); 454 p(tcps_rcvafterclose, "\t\t%lu packet%s received after close\n"); 455 p(tcps_rcvbadsum, "\t\t%lu discarded for bad checksum%s\n"); 456 p(tcps_rcvbadoff, "\t\t%lu discarded for bad header offset field%s\n"); 457 p1a(tcps_rcvshort, "\t\t%lu discarded because packet too short\n"); 458 p(tcps_connattempt, "\t%lu connection request%s\n"); 459 p(tcps_accepts, "\t%lu connection accept%s\n"); 460 p(tcps_badsyn, "\t%lu bad connection attempt%s\n"); 461 p(tcps_listendrop, "\t%lu listen queue overflow%s\n"); 462 p(tcps_connects, "\t%lu connection%s established (including accepts)\n"); 463 p2(tcps_closed, tcps_drops, 464 "\t%lu connection%s closed (including %lu drop%s)\n"); 465 p(tcps_cachedrtt, "\t\t%lu connection%s updated cached RTT on close\n"); 466 p(tcps_cachedrttvar, 467 "\t\t%lu connection%s updated cached RTT variance on close\n"); 468 p(tcps_cachedssthresh, 469 "\t\t%lu connection%s updated cached ssthresh on close\n"); 470 p(tcps_conndrops, "\t%lu embryonic connection%s dropped\n"); 471 p2(tcps_rttupdated, tcps_segstimed, 472 "\t%lu segment%s updated rtt (of %lu attempt%s)\n"); 473 p(tcps_rexmttimeo, "\t%lu retransmit timeout%s\n"); 474 p(tcps_timeoutdrop, "\t\t%lu connection%s dropped by rexmit timeout\n"); 475 p(tcps_persisttimeo, "\t%lu persist timeout%s\n"); 476 p(tcps_persistdrop, "\t\t%lu connection%s dropped by persist timeout\n"); 477 p(tcps_keeptimeo, "\t%lu keepalive timeout%s\n"); 478 p(tcps_keepprobe, "\t\t%lu keepalive probe%s sent\n"); 479 p(tcps_keepdrops, "\t\t%lu connection%s dropped by keepalive\n"); 480 p(tcps_predack, "\t%lu correct ACK header prediction%s\n"); 481 p(tcps_preddat, "\t%lu correct data packet header prediction%s\n"); 482 483 p(tcps_sc_added, "\t%lu syncache entries added\n"); 484 p(tcps_sc_retransmitted, "\t\t%lu retransmitted\n"); 485 p(tcps_sc_dupsyn, "\t\t%lu dupsyn\n"); 486 p(tcps_sc_dropped, "\t\t%lu dropped\n"); 487 p(tcps_sc_completed, "\t\t%lu completed\n"); 488 p(tcps_sc_bucketoverflow, "\t\t%lu bucket overflow\n"); 489 p(tcps_sc_cacheoverflow, "\t\t%lu cache overflow\n"); 490 p(tcps_sc_reset, "\t\t%lu reset\n"); 491 p(tcps_sc_stale, "\t\t%lu stale\n"); 492 p(tcps_sc_aborted, "\t\t%lu aborted\n"); 493 p(tcps_sc_badack, "\t\t%lu badack\n"); 494 p(tcps_sc_unreach, "\t\t%lu unreach\n"); 495 p(tcps_sc_zonefail, "\t\t%lu zone failures\n"); 496 p(tcps_sc_sendcookie, "\t%lu cookies sent\n"); 497 p(tcps_sc_recvcookie, "\t%lu cookies received\n"); 498 free(stattmp); 499 #undef p 500 #undef p1a 501 #undef p2 502 #undef p2a 503 #undef p3 504 } 505 506 /* 507 * Dump UDP statistics structure. 508 */ 509 void 510 udp_stats(u_long off __unused, char *name, int af __unused) 511 { 512 struct udpstat udpstat, zerostat; 513 size_t len = sizeof udpstat; 514 u_long delivered; 515 516 if (zflag) 517 memset(&zerostat, 0, len); 518 if (sysctlbyname("net.inet.udp.stats", &udpstat, &len, 519 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 520 warn("sysctl: net.inet.udp.stats"); 521 return; 522 } 523 524 #ifdef INET6 525 if (udp_done != 0) 526 return; 527 else 528 udp_done = 1; 529 #endif 530 531 printf("%s:\n", name); 532 #define p(f, m) if (udpstat.f || sflag <= 1) \ 533 printf(m, udpstat.f, plural(udpstat.f)) 534 #define p1a(f, m) if (udpstat.f || sflag <= 1) \ 535 printf(m, udpstat.f) 536 p(udps_ipackets, "\t%lu datagram%s received\n"); 537 p1a(udps_hdrops, "\t%lu with incomplete header\n"); 538 p1a(udps_badlen, "\t%lu with bad data length field\n"); 539 p1a(udps_badsum, "\t%lu with bad checksum\n"); 540 p1a(udps_nosum, "\t%lu with no checksum\n"); 541 p1a(udps_noport, "\t%lu dropped due to no socket\n"); 542 p(udps_noportbcast, 543 "\t%lu broadcast/multicast datagram%s dropped due to no socket\n"); 544 p1a(udps_fullsock, "\t%lu dropped due to full socket buffers\n"); 545 p1a(udpps_pcbhashmiss, "\t%lu not for hashed pcb\n"); 546 delivered = udpstat.udps_ipackets - 547 udpstat.udps_hdrops - 548 udpstat.udps_badlen - 549 udpstat.udps_badsum - 550 udpstat.udps_noport - 551 udpstat.udps_noportbcast - 552 udpstat.udps_fullsock; 553 if (delivered || sflag <= 1) 554 printf("\t%lu delivered\n", delivered); 555 p(udps_opackets, "\t%lu datagram%s output\n"); 556 #undef p 557 #undef p1a 558 } 559 560 /* 561 * Dump IP statistics structure. 562 */ 563 void 564 ip_stats(u_long off __unused, char *name, int af __unused) 565 { 566 struct ipstat ipstat, zerostat; 567 size_t len = sizeof ipstat; 568 569 if (zflag) 570 memset(&zerostat, 0, len); 571 if (sysctlbyname("net.inet.ip.stats", &ipstat, &len, 572 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 573 warn("sysctl: net.inet.ip.stats"); 574 return; 575 } 576 577 printf("%s:\n", name); 578 579 #define p(f, m) if (ipstat.f || sflag <= 1) \ 580 printf(m, ipstat.f, plural(ipstat.f)) 581 #define p1a(f, m) if (ipstat.f || sflag <= 1) \ 582 printf(m, ipstat.f) 583 584 p(ips_total, "\t%lu total packet%s received\n"); 585 p(ips_badsum, "\t%lu bad header checksum%s\n"); 586 p1a(ips_toosmall, "\t%lu with size smaller than minimum\n"); 587 p1a(ips_tooshort, "\t%lu with data size < data length\n"); 588 p1a(ips_toolong, "\t%lu with ip length > max ip packet size\n"); 589 p1a(ips_badhlen, "\t%lu with header length < data size\n"); 590 p1a(ips_badlen, "\t%lu with data length < header length\n"); 591 p1a(ips_badoptions, "\t%lu with bad options\n"); 592 p1a(ips_badvers, "\t%lu with incorrect version number\n"); 593 p(ips_fragments, "\t%lu fragment%s received\n"); 594 p(ips_fragdropped, "\t%lu fragment%s dropped (dup or out of space)\n"); 595 p(ips_fragtimeout, "\t%lu fragment%s dropped after timeout\n"); 596 p(ips_reassembled, "\t%lu packet%s reassembled ok\n"); 597 p(ips_delivered, "\t%lu packet%s for this host\n"); 598 p(ips_noproto, "\t%lu packet%s for unknown/unsupported protocol\n"); 599 p(ips_forward, "\t%lu packet%s forwarded"); 600 p(ips_fastforward, " (%lu packet%s fast forwarded)"); 601 if (ipstat.ips_forward || sflag <= 1) 602 putchar('\n'); 603 p(ips_cantforward, "\t%lu packet%s not forwardable\n"); 604 p(ips_notmember, 605 "\t%lu packet%s received for unknown multicast group\n"); 606 p(ips_redirectsent, "\t%lu redirect%s sent\n"); 607 p(ips_localout, "\t%lu packet%s sent from this host\n"); 608 p(ips_rawout, "\t%lu packet%s sent with fabricated ip header\n"); 609 p(ips_odropped, 610 "\t%lu output packet%s dropped due to no bufs, etc.\n"); 611 p(ips_noroute, "\t%lu output packet%s discarded due to no route\n"); 612 p(ips_fragmented, "\t%lu output datagram%s fragmented\n"); 613 p(ips_ofragments, "\t%lu fragment%s created\n"); 614 p(ips_cantfrag, "\t%lu datagram%s that can't be fragmented\n"); 615 p(ips_nogif, "\t%lu tunneling packet%s that can't find gif\n"); 616 p(ips_badaddr, "\t%lu datagram%s with bad address in header\n"); 617 #undef p 618 #undef p1a 619 } 620 621 static char *icmpnames[] = { 622 "echo reply", 623 "#1", 624 "#2", 625 "destination unreachable", 626 "source quench", 627 "routing redirect", 628 "#6", 629 "#7", 630 "echo", 631 "router advertisement", 632 "router solicitation", 633 "time exceeded", 634 "parameter problem", 635 "time stamp", 636 "time stamp reply", 637 "information request", 638 "information request reply", 639 "address mask request", 640 "address mask reply", 641 }; 642 643 /* 644 * Dump ICMP statistics. 645 */ 646 void 647 icmp_stats(u_long off __unused, char *name, int af __unused) 648 { 649 struct icmpstat icmpstat, zerostat; 650 int i, first; 651 int mib[4]; /* CTL_NET + PF_INET + IPPROTO_ICMP + req */ 652 size_t len; 653 654 mib[0] = CTL_NET; 655 mib[1] = PF_INET; 656 mib[2] = IPPROTO_ICMP; 657 mib[3] = ICMPCTL_STATS; 658 659 len = sizeof icmpstat; 660 if (zflag) 661 memset(&zerostat, 0, len); 662 if (sysctl(mib, 4, &icmpstat, &len, 663 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 664 warn("sysctl: net.inet.icmp.stats"); 665 return; 666 } 667 668 printf("%s:\n", name); 669 670 #define p(f, m) if (icmpstat.f || sflag <= 1) \ 671 printf(m, icmpstat.f, plural(icmpstat.f)) 672 #define p1a(f, m) if (icmpstat.f || sflag <= 1) \ 673 printf(m, icmpstat.f) 674 #define p2(f, m) if (icmpstat.f || sflag <= 1) \ 675 printf(m, icmpstat.f, plurales(icmpstat.f)) 676 677 p(icps_error, "\t%lu call%s to icmp_error\n"); 678 p(icps_oldicmp, 679 "\t%lu error%s not generated 'cuz old message was icmp\n"); 680 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 681 if (icmpstat.icps_outhist[i] != 0) { 682 if (first) { 683 printf("\tOutput histogram:\n"); 684 first = 0; 685 } 686 printf("\t\t%s: %lu\n", icmpnames[i], 687 icmpstat.icps_outhist[i]); 688 } 689 p(icps_badcode, "\t%lu message%s with bad code fields\n"); 690 p(icps_tooshort, "\t%lu message%s < minimum length\n"); 691 p(icps_checksum, "\t%lu bad checksum%s\n"); 692 p(icps_badlen, "\t%lu message%s with bad length\n"); 693 p1a(icps_bmcastecho, "\t%lu multicast echo requests ignored\n"); 694 p1a(icps_bmcasttstamp, "\t%lu multicast timestamp requests ignored\n"); 695 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 696 if (icmpstat.icps_inhist[i] != 0) { 697 if (first) { 698 printf("\tInput histogram:\n"); 699 first = 0; 700 } 701 printf("\t\t%s: %lu\n", icmpnames[i], 702 icmpstat.icps_inhist[i]); 703 } 704 p(icps_reflect, "\t%lu message response%s generated\n"); 705 p2(icps_badaddr, "\t%lu invalid return address%s\n"); 706 p(icps_noroute, "\t%lu no return route%s\n"); 707 #undef p 708 #undef p1a 709 #undef p2 710 mib[3] = ICMPCTL_MASKREPL; 711 len = sizeof i; 712 if (sysctl(mib, 4, &i, &len, (void *)0, 0) < 0) 713 return; 714 printf("\tICMP address mask responses are %sabled\n", 715 i ? "en" : "dis"); 716 } 717 718 /* 719 * Dump IGMP statistics structure. 720 */ 721 void 722 igmp_stats(u_long off __unused, char *name, int af __unused) 723 { 724 struct igmpstat igmpstat, zerostat; 725 size_t len = sizeof igmpstat; 726 727 if (zflag) 728 memset(&zerostat, 0, len); 729 if (sysctlbyname("net.inet.igmp.stats", &igmpstat, &len, 730 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 731 warn("sysctl: net.inet.igmp.stats"); 732 return; 733 } 734 735 printf("%s:\n", name); 736 737 #define p(f, m) if (igmpstat.f || sflag <= 1) \ 738 printf(m, igmpstat.f, plural(igmpstat.f)) 739 #define py(f, m) if (igmpstat.f || sflag <= 1) \ 740 printf(m, igmpstat.f, igmpstat.f != 1 ? "ies" : "y") 741 p(igps_rcv_total, "\t%u message%s received\n"); 742 p(igps_rcv_tooshort, "\t%u message%s received with too few bytes\n"); 743 p(igps_rcv_badsum, "\t%u message%s received with bad checksum\n"); 744 py(igps_rcv_queries, "\t%u membership quer%s received\n"); 745 py(igps_rcv_badqueries, "\t%u membership quer%s received with invalid field(s)\n"); 746 p(igps_rcv_reports, "\t%u membership report%s received\n"); 747 p(igps_rcv_badreports, "\t%u membership report%s received with invalid field(s)\n"); 748 p(igps_rcv_ourreports, "\t%u membership report%s received for groups to which we belong\n"); 749 p(igps_snd_reports, "\t%u membership report%s sent\n"); 750 #undef p 751 #undef py 752 } 753 754 /* 755 * Dump PIM statistics structure. 756 */ 757 void 758 pim_stats(u_long off __unused, char *name, int af1 __unused) 759 { 760 struct pimstat pimstat, zerostat; 761 size_t len = sizeof pimstat; 762 763 if (zflag) 764 memset(&zerostat, 0, len); 765 if (sysctlbyname("net.inet.pim.stats", &pimstat, &len, 766 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 767 if (errno != ENOENT) 768 warn("sysctl: net.inet.pim.stats"); 769 return; 770 } 771 772 printf("%s:\n", name); 773 774 #define p(f, m) if (pimstat.f || sflag <= 1) \ 775 printf(m, pimstat.f, plural(pimstat.f)) 776 #define py(f, m) if (pimstat.f || sflag <= 1) \ 777 printf(m, pimstat.f, pimstat.f != 1 ? "ies" : "y") 778 p(pims_rcv_total_msgs, "\t%llu message%s received\n"); 779 p(pims_rcv_total_bytes, "\t%llu byte%s received\n"); 780 p(pims_rcv_tooshort, "\t%llu message%s received with too few bytes\n"); 781 p(pims_rcv_badsum, "\t%llu message%s received with bad checksum\n"); 782 p(pims_rcv_badversion, "\t%llu message%s received with bad version\n"); 783 p(pims_rcv_registers_msgs, "\t%llu data register message%s received\n"); 784 p(pims_rcv_registers_bytes, "\t%llu data register byte%s received\n"); 785 p(pims_rcv_registers_wrongiif, "\t%llu data register message%s received on wrong iif\n"); 786 p(pims_rcv_badregisters, "\t%llu bad register%s received\n"); 787 p(pims_snd_registers_msgs, "\t%llu data register message%s sent\n"); 788 p(pims_snd_registers_bytes, "\t%llu data register byte%s sent\n"); 789 #undef p 790 #undef py 791 } 792 793 /* 794 * Pretty print an Internet address (net address + port). 795 */ 796 void 797 inetprint(struct in_addr *in, int port, char *proto, int numeric_port) 798 { 799 struct servent *sp = 0; 800 char line[80], *cp; 801 int width; 802 803 if (Wflag) 804 sprintf(line, "%s.", inetname(in)); 805 else 806 sprintf(line, "%.*s.", (Aflag && !numeric_port) ? 12 : 16, inetname(in)); 807 cp = index(line, '\0'); 808 if (!numeric_port && port) 809 sp = getservbyport((int)port, proto); 810 if (sp || port == 0) 811 sprintf(cp, "%.15s ", sp ? sp->s_name : "*"); 812 else 813 sprintf(cp, "%d ", ntohs((u_short)port)); 814 width = (Aflag && !Wflag) ? 18 : 22; 815 if (Wflag) 816 printf("%-*s ", width, line); 817 else 818 printf("%-*.*s ", width, width, line); 819 } 820 821 /* 822 * Construct an Internet address representation. 823 * If numeric_addr has been supplied, give 824 * numeric value, otherwise try for symbolic name. 825 */ 826 char * 827 inetname(struct in_addr *inp) 828 { 829 register char *cp; 830 static char line[MAXHOSTNAMELEN]; 831 struct hostent *hp; 832 struct netent *np; 833 834 cp = 0; 835 if (!numeric_addr && inp->s_addr != INADDR_ANY) { 836 int net = inet_netof(*inp); 837 int lna = inet_lnaof(*inp); 838 839 if (lna == INADDR_ANY) { 840 np = getnetbyaddr(net, AF_INET); 841 if (np) 842 cp = np->n_name; 843 } 844 if (cp == 0) { 845 hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET); 846 if (hp) { 847 cp = hp->h_name; 848 trimdomain(cp, strlen(cp)); 849 } 850 } 851 } 852 if (inp->s_addr == INADDR_ANY) 853 strcpy(line, "*"); 854 else if (cp) { 855 strncpy(line, cp, sizeof(line) - 1); 856 line[sizeof(line) - 1] = '\0'; 857 } else { 858 inp->s_addr = ntohl(inp->s_addr); 859 #define C(x) ((u_int)((x) & 0xff)) 860 sprintf(line, "%u.%u.%u.%u", C(inp->s_addr >> 24), 861 C(inp->s_addr >> 16), C(inp->s_addr >> 8), C(inp->s_addr)); 862 } 863 return (line); 864 } 865