1 /* 2 * Copyright (c) 1983, 1988, 1993 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 34 #if 0 35 #ifndef lint 36 static char sccsid[] = "@(#)if.c 8.3 (Berkeley) 4/28/95"; 37 #endif /* not lint */ 38 #endif 39 40 #include <sys/cdefs.h> 41 __FBSDID("$FreeBSD$"); 42 43 #include <sys/types.h> 44 #include <sys/protosw.h> 45 #include <sys/socket.h> 46 #include <sys/sysctl.h> 47 #include <sys/time.h> 48 49 #include <net/if.h> 50 #include <net/if_var.h> 51 #include <net/if_dl.h> 52 #include <net/if_types.h> 53 #include <net/bridge.h> 54 #include <net/ethernet.h> 55 #include <net/pfvar.h> 56 #include <net/if_pfsync.h> 57 #include <netinet/in.h> 58 #include <netinet/in_var.h> 59 #include <netipx/ipx.h> 60 #include <netipx/ipx_if.h> 61 #include <arpa/inet.h> 62 63 #include <err.h> 64 #include <errno.h> 65 #include <libutil.h> 66 #include <signal.h> 67 #include <stdio.h> 68 #include <stdlib.h> 69 #include <string.h> 70 #include <unistd.h> 71 72 #include "netstat.h" 73 74 #define YES 1 75 #define NO 0 76 77 static void sidewaysintpr (u_int, u_long); 78 static void catchalarm (int); 79 80 #ifdef INET6 81 static char ntop_buf[INET6_ADDRSTRLEN]; /* for inet_ntop() */ 82 static int bdg_done; 83 #endif 84 85 /* print bridge statistics */ 86 void 87 bdg_stats(u_long dummy __unused, const char *name, int af1 __unused) 88 { 89 int i; 90 size_t slen ; 91 struct bdg_stats s ; 92 int mib[4] ; 93 94 slen = sizeof(s); 95 96 mib[0] = CTL_NET ; 97 mib[1] = PF_LINK ; 98 mib[2] = IFT_ETHER ; 99 mib[3] = PF_BDG ; 100 if (sysctl(mib,4, &s,&slen,NULL,0)==-1) 101 return ; /* no bridging */ 102 #ifdef INET6 103 if (bdg_done != 0) 104 return; 105 else 106 bdg_done = 1; 107 #endif 108 printf("-- Bridging statistics (%s) --\n", name) ; 109 printf( 110 "Name In Out Forward Drop Bcast Mcast Local Unknown\n"); 111 for (i = 0 ; i < 16 ; i++) { 112 if (s.s[i].name[0]) 113 printf("%-6s %9ld%9ld%9ld%9ld%9ld%9ld%9ld%9ld\n", 114 s.s[i].name, 115 s.s[i].p_in[(int)BDG_IN], 116 s.s[i].p_in[(int)BDG_OUT], 117 s.s[i].p_in[(int)BDG_FORWARD], 118 s.s[i].p_in[(int)BDG_DROP], 119 s.s[i].p_in[(int)BDG_BCAST], 120 s.s[i].p_in[(int)BDG_MCAST], 121 s.s[i].p_in[(int)BDG_LOCAL], 122 s.s[i].p_in[(int)BDG_UNKNOWN] ); 123 } 124 } 125 126 /* 127 * Dump pfsync statistics structure. 128 */ 129 void 130 pfsync_stats(u_long off __unused, const char *name, int af1 __unused) 131 { 132 struct pfsyncstats pfsyncstat, zerostat; 133 size_t len = sizeof(struct pfsyncstats); 134 135 if (zflag) 136 memset(&zerostat, 0, len); 137 if (sysctlbyname("net.inet.pfsync.stats", &pfsyncstat, &len, 138 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 139 if (errno != ENOENT) 140 warn("sysctl: net.inet.pfsync.stats"); 141 return; 142 } 143 144 printf("%s:\n", name); 145 146 #define p(f, m) if (pfsyncstat.f || sflag <= 1) \ 147 printf(m, (unsigned long long)pfsyncstat.f, plural(pfsyncstat.f)) 148 #define p2(f, m) if (pfsyncstat.f || sflag <= 1) \ 149 printf(m, (unsigned long long)pfsyncstat.f) 150 151 p(pfsyncs_ipackets, "\t%llu packet%s received (IPv4)\n"); 152 p(pfsyncs_ipackets6, "\t%llu packet%s received (IPv6)\n"); 153 p(pfsyncs_badif, "\t\t%llu packet%s discarded for bad interface\n"); 154 p(pfsyncs_badttl, "\t\t%llu packet%s discarded for bad ttl\n"); 155 p(pfsyncs_hdrops, "\t\t%llu packet%s shorter than header\n"); 156 p(pfsyncs_badver, "\t\t%llu packet%s discarded for bad version\n"); 157 p(pfsyncs_badauth, "\t\t%llu packet%s discarded for bad HMAC\n"); 158 p(pfsyncs_badact,"\t\t%llu packet%s discarded for bad action\n"); 159 p(pfsyncs_badlen, "\t\t%llu packet%s discarded for short packet\n"); 160 p(pfsyncs_badval, "\t\t%llu state%s discarded for bad values\n"); 161 p(pfsyncs_stale, "\t\t%llu stale state%s\n"); 162 p(pfsyncs_badstate, "\t\t%llu failed state lookup/insert%s\n"); 163 p(pfsyncs_opackets, "\t%llu packet%s sent (IPv4)\n"); 164 p(pfsyncs_opackets6, "\t%llu packet%s sent (IPv6)\n"); 165 p2(pfsyncs_onomem, "\t\t%llu send failed due to mbuf memory error\n"); 166 p2(pfsyncs_oerrors, "\t\t%llu send error\n"); 167 #undef p 168 #undef p2 169 } 170 171 /* 172 * Display a formatted value, or a '-' in the same space. 173 */ 174 static void 175 show_stat(const char *fmt, int width, u_long value, short showvalue) 176 { 177 char newfmt[32]; 178 179 if (showvalue == 0) { 180 /* Print just dash. */ 181 sprintf(newfmt, "%%%ds", width); 182 printf(newfmt, "-"); 183 return; 184 } 185 186 if (hflag) { 187 char buf[5]; 188 189 /* Format in human readable form. */ 190 humanize_number(buf, sizeof(buf), (int64_t)value, "", 191 HN_AUTOSCALE, HN_NOSPACE | HN_DECIMAL); 192 sprintf(newfmt, "%%%ds", width); 193 printf(newfmt, buf); 194 } else { 195 /* Construct the format string. */ 196 sprintf(newfmt, "%%%d%s", width, fmt); 197 printf(newfmt, value); 198 } 199 } 200 201 /* 202 * Print a description of the network interfaces. 203 */ 204 void 205 intpr(int _interval, u_long ifnetaddr, void (*pfunc)(char *)) 206 { 207 struct ifnet ifnet; 208 struct ifnethead ifnethead; 209 union { 210 struct ifaddr ifa; 211 struct in_ifaddr in; 212 #ifdef INET6 213 struct in6_ifaddr in6; 214 #endif 215 struct ipx_ifaddr ipx; 216 } ifaddr; 217 u_long ifaddraddr; 218 u_long ifaddrfound; 219 u_long ifnetfound; 220 u_long opackets; 221 u_long ipackets; 222 u_long obytes; 223 u_long ibytes; 224 u_long omcasts; 225 u_long imcasts; 226 u_long oerrors; 227 u_long ierrors; 228 u_long collisions; 229 short timer; 230 int drops; 231 struct sockaddr *sa = NULL; 232 char name[IFNAMSIZ]; 233 short network_layer; 234 short link_layer; 235 236 if (ifnetaddr == 0) { 237 printf("ifnet: symbol not defined\n"); 238 return; 239 } 240 if (_interval) { 241 sidewaysintpr((unsigned)_interval, ifnetaddr); 242 return; 243 } 244 if (kread(ifnetaddr, (char *)&ifnethead, sizeof ifnethead)) 245 return; 246 ifnetaddr = (u_long)TAILQ_FIRST(&ifnethead); 247 if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet)) 248 return; 249 250 if (!pfunc) { 251 if (Wflag) 252 printf("%-7.7s", "Name"); 253 else 254 printf("%-5.5s", "Name"); 255 printf(" %5.5s %-13.13s %-17.17s %8.8s %5.5s", 256 "Mtu", "Network", "Address", "Ipkts", "Ierrs"); 257 if (bflag) 258 printf(" %10.10s","Ibytes"); 259 printf(" %8.8s %5.5s", "Opkts", "Oerrs"); 260 if (bflag) 261 printf(" %10.10s","Obytes"); 262 printf(" %5s", "Coll"); 263 if (tflag) 264 printf(" %s", "Time"); 265 if (dflag) 266 printf(" %s", "Drop"); 267 putchar('\n'); 268 } 269 ifaddraddr = 0; 270 while (ifnetaddr || ifaddraddr) { 271 struct sockaddr_in *sockin; 272 #ifdef INET6 273 struct sockaddr_in6 *sockin6; 274 #endif 275 char *cp; 276 int n, m; 277 278 network_layer = 0; 279 link_layer = 0; 280 281 if (ifaddraddr == 0) { 282 ifnetfound = ifnetaddr; 283 if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet)) 284 return; 285 strlcpy(name, ifnet.if_xname, sizeof(name)); 286 ifnetaddr = (u_long)TAILQ_NEXT(&ifnet, if_link); 287 if (interface != 0 && (strcmp(name, interface) != 0)) 288 continue; 289 cp = index(name, '\0'); 290 291 if (pfunc) { 292 (*pfunc)(name); 293 continue; 294 } 295 296 if ((ifnet.if_flags&IFF_UP) == 0) 297 *cp++ = '*'; 298 *cp = '\0'; 299 ifaddraddr = (u_long)TAILQ_FIRST(&ifnet.if_addrhead); 300 } 301 ifaddrfound = ifaddraddr; 302 303 /* 304 * Get the interface stats. These may get 305 * overriden below on a per-interface basis. 306 */ 307 opackets = ifnet.if_opackets; 308 ipackets = ifnet.if_ipackets; 309 obytes = ifnet.if_obytes; 310 ibytes = ifnet.if_ibytes; 311 omcasts = ifnet.if_omcasts; 312 imcasts = ifnet.if_imcasts; 313 oerrors = ifnet.if_oerrors; 314 ierrors = ifnet.if_ierrors; 315 collisions = ifnet.if_collisions; 316 timer = ifnet.if_timer; 317 drops = ifnet.if_snd.ifq_drops; 318 319 if (ifaddraddr == 0) { 320 if (Wflag) 321 printf("%-7.7s", name); 322 else 323 printf("%-5.5s", name); 324 printf(" %5lu ", ifnet.if_mtu); 325 printf("%-13.13s ", "none"); 326 printf("%-17.17s ", "none"); 327 } else { 328 if (kread(ifaddraddr, (char *)&ifaddr, sizeof ifaddr)) { 329 ifaddraddr = 0; 330 continue; 331 } 332 #define CP(x) ((char *)(x)) 333 cp = (CP(ifaddr.ifa.ifa_addr) - CP(ifaddraddr)) + 334 CP(&ifaddr); 335 sa = (struct sockaddr *)cp; 336 if (af != AF_UNSPEC && sa->sa_family != af) { 337 ifaddraddr = 338 (u_long)TAILQ_NEXT(&ifaddr.ifa, ifa_link); 339 continue; 340 } 341 if (Wflag) 342 printf("%-7.7s", name); 343 else 344 printf("%-5.5s", name); 345 printf(" %5lu ", ifnet.if_mtu); 346 switch (sa->sa_family) { 347 case AF_UNSPEC: 348 printf("%-13.13s ", "none"); 349 printf("%-15.15s ", "none"); 350 break; 351 case AF_INET: 352 sockin = (struct sockaddr_in *)sa; 353 #ifdef notdef 354 /* can't use inet_makeaddr because kernel 355 * keeps nets unshifted. 356 */ 357 in = inet_makeaddr(ifaddr.in.ia_subnet, 358 INADDR_ANY); 359 printf("%-13.13s ", netname(in.s_addr, 360 ifaddr.in.ia_subnetmask)); 361 #else 362 printf("%-13.13s ", 363 netname(htonl(ifaddr.in.ia_subnet), 364 ifaddr.in.ia_subnetmask)); 365 #endif 366 printf("%-17.17s ", 367 routename(sockin->sin_addr.s_addr)); 368 369 network_layer = 1; 370 break; 371 #ifdef INET6 372 case AF_INET6: 373 sockin6 = (struct sockaddr_in6 *)sa; 374 printf("%-13.13s ", 375 netname6(&ifaddr.in6.ia_addr, 376 &ifaddr.in6.ia_prefixmask.sin6_addr)); 377 printf("%-17.17s ", 378 inet_ntop(AF_INET6, 379 &sockin6->sin6_addr, 380 ntop_buf, sizeof(ntop_buf))); 381 382 network_layer = 1; 383 break; 384 #endif /*INET6*/ 385 case AF_IPX: 386 { 387 struct sockaddr_ipx *sipx = 388 (struct sockaddr_ipx *)sa; 389 u_long net; 390 char netnum[10]; 391 392 *(union ipx_net *) &net = sipx->sipx_addr.x_net; 393 sprintf(netnum, "%lx", (u_long)ntohl(net)); 394 printf("ipx:%-8s ", netnum); 395 /* printf("ipx:%-8s ", netname(net, 0L)); */ 396 printf("%-17s ", 397 ipx_phost((struct sockaddr *)sipx)); 398 } 399 400 network_layer = 1; 401 break; 402 403 case AF_APPLETALK: 404 printf("atalk:%-12.12s ",atalk_print(sa,0x10) ); 405 printf("%-11.11s ",atalk_print(sa,0x0b) ); 406 break; 407 case AF_LINK: 408 { 409 struct sockaddr_dl *sdl = 410 (struct sockaddr_dl *)sa; 411 char linknum[10]; 412 cp = (char *)LLADDR(sdl); 413 n = sdl->sdl_alen; 414 sprintf(linknum, "<Link#%d>", sdl->sdl_index); 415 m = printf("%-13.13s ", linknum); 416 } 417 goto hexprint; 418 default: 419 m = printf("(%d)", sa->sa_family); 420 for (cp = sa->sa_len + (char *)sa; 421 --cp > sa->sa_data && (*cp == 0);) {} 422 n = cp - sa->sa_data + 1; 423 cp = sa->sa_data; 424 hexprint: 425 while (--n >= 0) 426 m += printf("%02x%c", *cp++ & 0xff, 427 n > 0 ? ':' : ' '); 428 m = 32 - m; 429 while (m-- > 0) 430 putchar(' '); 431 432 link_layer = 1; 433 break; 434 } 435 436 /* 437 * Fixup the statistics for interfaces that 438 * update stats for their network addresses 439 */ 440 if (network_layer) { 441 opackets = ifaddr.in.ia_ifa.if_opackets; 442 ipackets = ifaddr.in.ia_ifa.if_ipackets; 443 obytes = ifaddr.in.ia_ifa.if_obytes; 444 ibytes = ifaddr.in.ia_ifa.if_ibytes; 445 } 446 447 ifaddraddr = (u_long)TAILQ_NEXT(&ifaddr.ifa, ifa_link); 448 } 449 450 show_stat("lu", 8, ipackets, link_layer|network_layer); 451 printf(" "); 452 show_stat("lu", 5, ierrors, link_layer); 453 printf(" "); 454 if (bflag) { 455 show_stat("lu", 10, ibytes, link_layer|network_layer); 456 printf(" "); 457 } 458 show_stat("lu", 8, opackets, link_layer|network_layer); 459 printf(" "); 460 show_stat("lu", 5, oerrors, link_layer); 461 printf(" "); 462 if (bflag) { 463 show_stat("lu", 10, obytes, link_layer|network_layer); 464 printf(" "); 465 } 466 show_stat("lu", 5, collisions, link_layer); 467 if (tflag) { 468 printf(" "); 469 show_stat("d", 3, timer, link_layer); 470 } 471 if (dflag) { 472 printf(" "); 473 show_stat("d", 3, drops, link_layer); 474 } 475 putchar('\n'); 476 if (aflag && ifaddrfound) { 477 /* 478 * Print family's multicast addresses 479 */ 480 struct ifmultiaddr *multiaddr; 481 struct ifmultiaddr ifma; 482 union { 483 struct sockaddr sa; 484 struct sockaddr_in in; 485 #ifdef INET6 486 struct sockaddr_in6 in6; 487 #endif /* INET6 */ 488 struct sockaddr_dl dl; 489 } msa; 490 const char *fmt; 491 492 TAILQ_FOREACH(multiaddr, &ifnet.if_multiaddrs, ifma_link) { 493 if (kread((u_long)multiaddr, (char *)&ifma, 494 sizeof ifma)) 495 break; 496 multiaddr = &ifma; 497 if (kread((u_long)ifma.ifma_addr, (char *)&msa, 498 sizeof msa)) 499 break; 500 if (msa.sa.sa_family != sa->sa_family) 501 continue; 502 503 fmt = 0; 504 switch (msa.sa.sa_family) { 505 case AF_INET: 506 fmt = routename(msa.in.sin_addr.s_addr); 507 break; 508 #ifdef INET6 509 case AF_INET6: 510 printf("%*s %-19.19s(refs: %d)\n", 511 Wflag ? 27 : 25, "", 512 inet_ntop(AF_INET6, 513 &msa.in6.sin6_addr, 514 ntop_buf, 515 sizeof(ntop_buf)), 516 ifma.ifma_refcount); 517 break; 518 #endif /* INET6 */ 519 case AF_LINK: 520 switch (msa.dl.sdl_type) { 521 case IFT_ETHER: 522 case IFT_FDDI: 523 fmt = ether_ntoa( 524 (struct ether_addr *) 525 LLADDR(&msa.dl)); 526 break; 527 } 528 break; 529 } 530 if (fmt) { 531 printf("%*s %-17.17s", 532 Wflag ? 27 : 25, "", fmt); 533 if (msa.sa.sa_family == AF_LINK) { 534 printf(" %8lu", imcasts); 535 printf("%*s", 536 bflag ? 17 : 6, ""); 537 printf(" %8lu", omcasts); 538 } 539 putchar('\n'); 540 } 541 } 542 } 543 } 544 } 545 546 struct iftot { 547 SLIST_ENTRY(iftot) chain; 548 char ift_name[IFNAMSIZ]; /* interface name */ 549 u_long ift_ip; /* input packets */ 550 u_long ift_ie; /* input errors */ 551 u_long ift_op; /* output packets */ 552 u_long ift_oe; /* output errors */ 553 u_long ift_co; /* collisions */ 554 u_int ift_dr; /* drops */ 555 u_long ift_ib; /* input bytes */ 556 u_long ift_ob; /* output bytes */ 557 }; 558 559 u_char signalled; /* set if alarm goes off "early" */ 560 561 /* 562 * Print a running summary of interface statistics. 563 * Repeat display every interval seconds, showing statistics 564 * collected over that interval. Assumes that interval is non-zero. 565 * First line printed at top of screen is always cumulative. 566 * XXX - should be rewritten to use ifmib(4). 567 */ 568 static void 569 sidewaysintpr(unsigned interval1, u_long off) 570 { 571 struct ifnet ifnet; 572 u_long firstifnet; 573 struct ifnethead ifnethead; 574 struct iftot *iftot, *ip, *ipn, *total, *sum, *interesting; 575 int line; 576 int oldmask, first; 577 u_long interesting_off; 578 579 if (kread(off, (char *)&ifnethead, sizeof ifnethead)) 580 return; 581 firstifnet = (u_long)TAILQ_FIRST(&ifnethead); 582 583 if ((iftot = malloc(sizeof(struct iftot))) == NULL) { 584 printf("malloc failed\n"); 585 exit(1); 586 } 587 memset(iftot, 0, sizeof(struct iftot)); 588 589 interesting = NULL; 590 interesting_off = 0; 591 for (off = firstifnet, ip = iftot; off;) { 592 char name[IFNAMSIZ]; 593 594 if (kread(off, (char *)&ifnet, sizeof ifnet)) 595 break; 596 strlcpy(name, ifnet.if_xname, sizeof(name)); 597 if (interface && strcmp(name, interface) == 0) { 598 interesting = ip; 599 interesting_off = off; 600 } 601 snprintf(ip->ift_name, sizeof(ip->ift_name), "(%s)", name);; 602 if ((ipn = malloc(sizeof(struct iftot))) == NULL) { 603 printf("malloc failed\n"); 604 exit(1); 605 } 606 memset(ipn, 0, sizeof(struct iftot)); 607 SLIST_NEXT(ip, chain) = ipn; 608 ip = ipn; 609 off = (u_long)TAILQ_NEXT(&ifnet, if_link); 610 } 611 if (interface && interesting == NULL) 612 errx(1, "%s: unknown interface", interface); 613 if ((total = malloc(sizeof(struct iftot))) == NULL) { 614 printf("malloc failed\n"); 615 exit(1); 616 } 617 memset(total, 0, sizeof(struct iftot)); 618 if ((sum = malloc(sizeof(struct iftot))) == NULL) { 619 printf("malloc failed\n"); 620 exit(1); 621 } 622 memset(sum, 0, sizeof(struct iftot)); 623 624 (void)signal(SIGALRM, catchalarm); 625 signalled = NO; 626 (void)alarm(interval1); 627 first = 1; 628 banner: 629 printf("%17s %14s %16s", "input", 630 interesting ? interesting->ift_name : "(Total)", "output"); 631 putchar('\n'); 632 printf("%10s %5s %10s %10s %5s %10s %5s", 633 "packets", "errs", "bytes", "packets", "errs", "bytes", "colls"); 634 if (dflag) 635 printf(" %5.5s", "drops"); 636 putchar('\n'); 637 fflush(stdout); 638 line = 0; 639 loop: 640 if (interesting != NULL) { 641 ip = interesting; 642 if (kread(interesting_off, (char *)&ifnet, sizeof ifnet)) { 643 printf("???\n"); 644 exit(1); 645 }; 646 if (!first) { 647 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu", 648 ifnet.if_ipackets - ip->ift_ip, 649 ifnet.if_ierrors - ip->ift_ie, 650 ifnet.if_ibytes - ip->ift_ib, 651 ifnet.if_opackets - ip->ift_op, 652 ifnet.if_oerrors - ip->ift_oe, 653 ifnet.if_obytes - ip->ift_ob, 654 ifnet.if_collisions - ip->ift_co); 655 if (dflag) 656 printf(" %5u", ifnet.if_snd.ifq_drops - ip->ift_dr); 657 } 658 ip->ift_ip = ifnet.if_ipackets; 659 ip->ift_ie = ifnet.if_ierrors; 660 ip->ift_ib = ifnet.if_ibytes; 661 ip->ift_op = ifnet.if_opackets; 662 ip->ift_oe = ifnet.if_oerrors; 663 ip->ift_ob = ifnet.if_obytes; 664 ip->ift_co = ifnet.if_collisions; 665 ip->ift_dr = ifnet.if_snd.ifq_drops; 666 } else { 667 sum->ift_ip = 0; 668 sum->ift_ie = 0; 669 sum->ift_ib = 0; 670 sum->ift_op = 0; 671 sum->ift_oe = 0; 672 sum->ift_ob = 0; 673 sum->ift_co = 0; 674 sum->ift_dr = 0; 675 for (off = firstifnet, ip = iftot; 676 off && SLIST_NEXT(ip, chain) != NULL; 677 ip = SLIST_NEXT(ip, chain)) { 678 if (kread(off, (char *)&ifnet, sizeof ifnet)) { 679 off = 0; 680 continue; 681 } 682 sum->ift_ip += ifnet.if_ipackets; 683 sum->ift_ie += ifnet.if_ierrors; 684 sum->ift_ib += ifnet.if_ibytes; 685 sum->ift_op += ifnet.if_opackets; 686 sum->ift_oe += ifnet.if_oerrors; 687 sum->ift_ob += ifnet.if_obytes; 688 sum->ift_co += ifnet.if_collisions; 689 sum->ift_dr += ifnet.if_snd.ifq_drops; 690 off = (u_long)TAILQ_NEXT(&ifnet, if_link); 691 } 692 if (!first) { 693 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu", 694 sum->ift_ip - total->ift_ip, 695 sum->ift_ie - total->ift_ie, 696 sum->ift_ib - total->ift_ib, 697 sum->ift_op - total->ift_op, 698 sum->ift_oe - total->ift_oe, 699 sum->ift_ob - total->ift_ob, 700 sum->ift_co - total->ift_co); 701 if (dflag) 702 printf(" %5u", sum->ift_dr - total->ift_dr); 703 } 704 *total = *sum; 705 } 706 if (!first) 707 putchar('\n'); 708 fflush(stdout); 709 oldmask = sigblock(sigmask(SIGALRM)); 710 if (! signalled) { 711 sigpause(0); 712 } 713 sigsetmask(oldmask); 714 signalled = NO; 715 (void)alarm(interval1); 716 line++; 717 first = 0; 718 if (line == 21) 719 goto banner; 720 else 721 goto loop; 722 /*NOTREACHED*/ 723 } 724 725 /* 726 * Called if an interval expires before sidewaysintpr has completed a loop. 727 * Sets a flag to not wait for the alarm. 728 */ 729 static void 730 catchalarm(int signo __unused) 731 { 732 signalled = YES; 733 } 734