1 /* $OpenBSD: if.c,v 1.76 2019/06/28 13:35:02 deraadt Exp $ */ 2 /* $NetBSD: if.c,v 1.16.4.2 1996/06/07 21:46:46 thorpej Exp $ */ 3 4 /* 5 * Copyright (c) 1983, 1988, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <sys/param.h> /* roundup() */ 34 #include <sys/types.h> 35 #include <sys/ioctl.h> 36 #include <sys/protosw.h> 37 #include <sys/socket.h> 38 #include <sys/sysctl.h> 39 40 #include <net/if.h> 41 #include <net/if_dl.h> 42 #include <net/if_types.h> 43 #include <net/route.h> 44 #include <netinet/in.h> 45 #include <netinet/in_var.h> 46 #include <netinet/if_ether.h> 47 #include <arpa/inet.h> 48 49 #include <err.h> 50 #include <limits.h> 51 #include <signal.h> 52 #include <stdio.h> 53 #include <stdlib.h> 54 #include <string.h> 55 #include <unistd.h> 56 #include <util.h> 57 58 #include "netstat.h" 59 60 static void print_addr(struct sockaddr *, struct sockaddr **, struct if_data *); 61 static void sidewaysintpr(u_int, int); 62 static void catchalarm(int); 63 static void get_rtaddrs(int, struct sockaddr *, struct sockaddr **); 64 static void fetchifs(void); 65 66 struct iftot; 67 68 struct if_show_err { 69 const char *name; 70 const char *iname; 71 const char *oname; 72 uint64_t (*count)(uint64_t, uint64_t); 73 }; 74 75 static uint64_t if_show_fails(uint64_t, uint64_t); 76 static uint64_t if_show_errors(uint64_t, uint64_t); 77 static uint64_t if_show_qdrops(uint64_t, uint64_t); 78 79 static const struct if_show_err if_show_errs[] = { 80 [IF_SHOW_FAIL] = { "fails", "Ifail", "Ofail", if_show_fails }, 81 [IF_SHOW_ERRS] = { "errs", "Ierrs", "Oerrs", if_show_errors }, 82 [IF_SHOW_DROP] = { "drops", "Idrop", "Odrop", if_show_qdrops }, 83 }; 84 static const struct if_show_err *if_errs = if_show_errs; 85 86 /* 87 * Print a description of the network interfaces. 88 * NOTE: ifnetaddr is the location of the kernel global "ifnet", 89 * which is a TAILQ_HEAD. 90 */ 91 void 92 intpr(int interval, int repeatcount) 93 { 94 struct if_msghdr ifm; 95 int mib[6] = { CTL_NET, PF_ROUTE, 0, 0, NET_RT_IFLIST, 0 }; 96 char name[IFNAMSIZ + 1]; /* + 1 for the '*' */ 97 char *buf = NULL, *next, *lim, *cp; 98 struct rt_msghdr *rtm; 99 struct ifa_msghdr *ifam; 100 struct if_data *ifd; 101 struct sockaddr *sa, *rti_info[RTAX_MAX]; 102 struct sockaddr_dl *sdl; 103 u_int64_t total = 0; 104 size_t len; 105 106 if_errs = &if_show_errs[dflag]; 107 108 if (interval) { 109 sidewaysintpr((unsigned)interval, repeatcount); 110 return; 111 } 112 113 len = get_sysctl(mib, 6, &buf); 114 115 printf("%-7.7s %-5.5s %-11.11s %-17.17s ", 116 "Name", "Mtu", "Network", "Address"); 117 if (bflag) 118 printf("%10.10s %10.10s", "Ibytes", "Obytes"); 119 else { 120 printf("%8.8s %5.5s %8.8s %5.5s %5.5s", 121 "Ipkts", if_errs->iname, 122 "Opkts", if_errs->oname, "Colls"); 123 } 124 if (tflag) 125 printf(" %s", "Time"); 126 putchar('\n'); 127 128 lim = buf + len; 129 for (next = buf; next < lim; next += rtm->rtm_msglen) { 130 rtm = (struct rt_msghdr *)next; 131 if (rtm->rtm_version != RTM_VERSION) 132 continue; 133 switch (rtm->rtm_type) { 134 case RTM_IFINFO: 135 total = 0; 136 bcopy(next, &ifm, sizeof ifm); 137 ifd = &ifm.ifm_data; 138 139 sa = (struct sockaddr *)(next + rtm->rtm_hdrlen); 140 get_rtaddrs(ifm.ifm_addrs, sa, rti_info); 141 142 sdl = (struct sockaddr_dl *)rti_info[RTAX_IFP]; 143 if (sdl == NULL || sdl->sdl_family != AF_LINK) 144 continue; 145 bzero(name, sizeof(name)); 146 if (sdl->sdl_nlen >= IFNAMSIZ) 147 memcpy(name, sdl->sdl_data, IFNAMSIZ - 1); 148 else if (sdl->sdl_nlen > 0) 149 memcpy(name, sdl->sdl_data, sdl->sdl_nlen); 150 151 if (interface != 0 && strcmp(name, interface) != 0) 152 continue; 153 154 /* mark inactive interfaces with a '*' */ 155 cp = strchr(name, '\0'); 156 if ((ifm.ifm_flags & IFF_UP) == 0) 157 *cp++ = '*'; 158 *cp = '\0'; 159 160 if (qflag) { 161 total = ifd->ifi_ibytes + ifd->ifi_obytes + 162 ifd->ifi_ipackets + 163 ifd->ifi_opackets + 164 ifd->ifi_collisions; 165 total += if_errs->count(ifd->ifi_ierrors, 166 ifd->ifi_iqdrops); 167 total += if_errs->count(ifd->ifi_oerrors, 168 ifd->ifi_oqdrops); 169 if (tflag) 170 total += 0; // XXX ifnet.if_timer; 171 if (total == 0) 172 continue; 173 } 174 175 printf("%-7s %-5d ", name, ifd->ifi_mtu); 176 print_addr(rti_info[RTAX_IFP], rti_info, ifd); 177 break; 178 case RTM_NEWADDR: 179 if (qflag && total == 0) 180 continue; 181 if (interface != 0 && strcmp(name, interface) != 0) 182 continue; 183 184 ifam = (struct ifa_msghdr *)next; 185 if ((ifam->ifam_addrs & (RTA_NETMASK | RTA_IFA | 186 RTA_BRD)) == 0) 187 break; 188 189 sa = (struct sockaddr *)(next + rtm->rtm_hdrlen); 190 get_rtaddrs(ifam->ifam_addrs, sa, rti_info); 191 192 printf("%-7s %-5d ", name, ifd->ifi_mtu); 193 print_addr(rti_info[RTAX_IFA], rti_info, ifd); 194 break; 195 } 196 } 197 free(buf); 198 } 199 200 static void 201 print_addr(struct sockaddr *sa, struct sockaddr **rtinfo, struct if_data *ifd) 202 { 203 struct sockaddr_dl *sdl; 204 struct sockaddr_in *sin; 205 struct sockaddr_in6 *sin6; 206 char *cp; 207 int m, n; 208 209 switch (sa->sa_family) { 210 case AF_UNSPEC: 211 printf("%-11.11s ", "none"); 212 printf("%-17.17s ", "none"); 213 break; 214 case AF_INET: 215 sin = (struct sockaddr_in *)sa; 216 cp = netname4(sin->sin_addr.s_addr, 217 ((struct sockaddr_in *)rtinfo[RTAX_NETMASK])->sin_addr.s_addr); 218 if (vflag) 219 n = strlen(cp) < 11 ? 11 : strlen(cp); 220 else 221 n = 11; 222 printf("%-*.*s ", n, n, cp); 223 cp = routename4(sin->sin_addr.s_addr); 224 if (vflag) 225 n = strlen(cp) < 17 ? 17 : strlen(cp); 226 else 227 n = 17; 228 printf("%-*.*s ", n, n, cp); 229 230 break; 231 case AF_INET6: 232 sin6 = (struct sockaddr_in6 *)sa; 233 #ifdef __KAME__ 234 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 235 sin6->sin6_scope_id = 236 ntohs(*(u_int16_t *) 237 &sin6->sin6_addr.s6_addr[2]); 238 sin6->sin6_addr.s6_addr[2] = 0; 239 sin6->sin6_addr.s6_addr[3] = 0; 240 } 241 #endif 242 cp = netname6(sin6, 243 (struct sockaddr_in6 *)rtinfo[RTAX_NETMASK]); 244 if (vflag) 245 n = strlen(cp) < 11 ? 11 : strlen(cp); 246 else 247 n = 11; 248 printf("%-*.*s ", n, n, cp); 249 cp = routename6(sin6); 250 if (vflag) 251 n = strlen(cp) < 17 ? 17 : strlen(cp); 252 else 253 n = 17; 254 printf("%-*.*s ", n, n, cp); 255 break; 256 case AF_LINK: 257 sdl = (struct sockaddr_dl *)sa; 258 m = printf("%-11.11s ", "<Link>"); 259 if (sdl->sdl_type == IFT_ETHER || 260 sdl->sdl_type == IFT_CARP || 261 sdl->sdl_type == IFT_FDDI || 262 sdl->sdl_type == IFT_ISO88025) 263 printf("%-17.17s ", 264 ether_ntoa((struct ether_addr *)LLADDR(sdl))); 265 else { 266 cp = (char *)LLADDR(sdl); 267 n = sdl->sdl_alen; 268 goto hexprint; 269 } 270 break; 271 default: 272 m = printf("(%d)", sa->sa_family); 273 for (cp = sa->sa_len + (char *)sa; 274 --cp > sa->sa_data && (*cp == 0);) {} 275 n = cp - sa->sa_data + 1; 276 cp = sa->sa_data; 277 hexprint: 278 while (--n >= 0) 279 m += printf("%x%c", *cp++ & 0xff, 280 n > 0 ? '.' : ' '); 281 m = 30 - m; 282 while (m-- > 0) 283 putchar(' '); 284 break; 285 } 286 if (bflag) { 287 if (hflag) { 288 char ibytes[FMT_SCALED_STRSIZE]; 289 char obytes[FMT_SCALED_STRSIZE]; 290 fmt_scaled(ifd->ifi_ibytes, ibytes); 291 fmt_scaled(ifd->ifi_obytes, obytes); 292 printf("%10s %10s", ibytes, obytes); 293 } else 294 printf("%10llu %10llu", 295 ifd->ifi_ibytes, ifd->ifi_obytes); 296 } else 297 printf("%8llu %5llu %8llu %5llu %5llu", 298 ifd->ifi_ipackets, 299 if_errs->count(ifd->ifi_ierrors, ifd->ifi_iqdrops), 300 ifd->ifi_opackets, 301 if_errs->count(ifd->ifi_oerrors, ifd->ifi_oqdrops), 302 ifd->ifi_collisions); 303 if (tflag) 304 printf(" %4d", 0 /* XXX ifnet.if_timer */); 305 putchar('\n'); 306 } 307 308 struct iftot { 309 char ift_name[IFNAMSIZ]; /* interface name */ 310 u_int64_t ift_ip; /* input packets */ 311 u_int64_t ift_ib; /* input bytes */ 312 u_int64_t ift_ie; /* input errors */ 313 u_int64_t ift_iq; /* input qdrops */ 314 u_int64_t ift_op; /* output packets */ 315 u_int64_t ift_ob; /* output bytes */ 316 u_int64_t ift_oe; /* output errors */ 317 u_int64_t ift_oq; /* output qdrops */ 318 u_int64_t ift_co; /* collisions */ 319 } ip_cur, ip_old, sum_cur, sum_old; 320 321 volatile sig_atomic_t signalled; /* set if alarm goes off "early" */ 322 323 /* 324 * Print a running summary of interface statistics. 325 * Repeat display every interval seconds, showing statistics 326 * collected over that interval. Assumes that interval is non-zero. 327 * First line printed at top of screen is always cumulative. 328 */ 329 static void 330 sidewaysintpr(unsigned int interval, int repeatcount) 331 { 332 sigset_t emptyset; 333 int line; 334 char ibytes[FMT_SCALED_STRSIZE]; 335 char obytes[FMT_SCALED_STRSIZE]; 336 337 fetchifs(); 338 if (ip_cur.ift_name[0] == '\0') { 339 fprintf(stderr, "%s: %s: unknown interface\n", 340 __progname, interface); 341 exit(1); 342 } 343 344 (void)signal(SIGALRM, catchalarm); 345 signalled = 0; 346 (void)alarm(interval); 347 banner: 348 if (bflag) 349 printf("%7.7s in %8.8s %6.6s out %5.5s", 350 ip_cur.ift_name, " ", 351 ip_cur.ift_name, " "); 352 else 353 printf("%5.5s in %5.5s%5.5s out %5.5s %5.5s", 354 ip_cur.ift_name, " ", 355 ip_cur.ift_name, " ", " "); 356 357 if (bflag) 358 printf(" %7.7s in %8.8s %6.6s out %5.5s", 359 "total", " ", "total", " "); 360 else 361 printf(" %5.5s in %5.5s%5.5s out %5.5s %5.5s", 362 "total", " ", "total", " ", " "); 363 putchar('\n'); 364 if (bflag) 365 printf("%10.10s %8.8s %10.10s %5.5s", 366 "bytes", " ", "bytes", " "); 367 else 368 printf("%8.8s %5.5s %8.8s %5.5s %5.5s", 369 "packets", if_errs->name, 370 "packets", if_errs->name, "colls"); 371 372 if (bflag) 373 printf("%10.10s %8.8s %10.10s %5.5s", 374 "bytes", " ", "bytes", " "); 375 else 376 printf(" %8.8s %5.5s %8.8s %5.5s %5.5s", 377 "packets", "errs", "packets", "errs", "colls"); 378 putchar('\n'); 379 fflush(stdout); 380 line = 0; 381 bzero(&ip_old, sizeof(ip_old)); 382 bzero(&sum_old, sizeof(sum_old)); 383 loop: 384 bzero(&sum_cur, sizeof(sum_cur)); 385 386 fetchifs(); 387 388 if (bflag) { 389 if (hflag) { 390 fmt_scaled(ip_cur.ift_ib - ip_old.ift_ib, ibytes); 391 fmt_scaled(ip_cur.ift_ob - ip_old.ift_ob, obytes); 392 printf("%10s %8.8s %10s %5.5s", 393 ibytes, " ", obytes, " "); 394 } else 395 printf("%10llu %8.8s %10llu %5.5s", 396 ip_cur.ift_ib - ip_old.ift_ib, " ", 397 ip_cur.ift_ob - ip_old.ift_ob, " "); 398 } else 399 printf("%8llu %5llu %8llu %5llu %5llu", 400 ip_cur.ift_ip - ip_old.ift_ip, 401 if_errs->count(ip_cur.ift_ie - ip_old.ift_ie, 402 ip_cur.ift_iq - ip_old.ift_iq), 403 ip_cur.ift_op - ip_old.ift_op, 404 if_errs->count(ip_cur.ift_oe - ip_old.ift_oe, 405 ip_cur.ift_oq - ip_old.ift_oq), 406 ip_cur.ift_co - ip_old.ift_co); 407 408 ip_old = ip_cur; 409 410 if (bflag) { 411 if (hflag) { 412 fmt_scaled(sum_cur.ift_ib - sum_old.ift_ib, ibytes); 413 fmt_scaled(sum_cur.ift_ob - sum_old.ift_ob, obytes); 414 printf("%10s %8.8s %10s %5.5s", 415 ibytes, " ", obytes, " "); 416 } else 417 printf("%10llu %8.8s %10llu %5.5s", 418 sum_cur.ift_ib - sum_old.ift_ib, " ", 419 sum_cur.ift_ob - sum_old.ift_ob, " "); 420 } else 421 printf("%8llu %5llu %8llu %5llu %5llu", 422 sum_cur.ift_ip - sum_old.ift_ip, 423 if_errs->count(sum_cur.ift_ie - sum_old.ift_ie, 424 sum_cur.ift_iq - sum_old.ift_iq), 425 sum_cur.ift_op - sum_old.ift_op, 426 if_errs->count(sum_cur.ift_oe - sum_old.ift_oe, 427 sum_cur.ift_oq - sum_old.ift_oq), 428 sum_cur.ift_co - sum_old.ift_co); 429 430 sum_old = sum_cur; 431 432 putchar('\n'); 433 fflush(stdout); 434 if (repeatcount && --repeatcount == 0) 435 return; 436 line++; 437 sigemptyset(&emptyset); 438 if (!signalled) 439 sigsuspend(&emptyset); 440 signalled = 0; 441 (void)alarm(interval); 442 if (line == 21 && isatty(STDOUT_FILENO)) 443 goto banner; 444 goto loop; 445 } 446 447 /* 448 * Called if an interval expires before sidewaysintpr has completed a loop. 449 * Sets a flag to not wait for the alarm. 450 */ 451 /* ARGSUSED */ 452 static void 453 catchalarm(int signo) 454 { 455 signalled = 1; 456 } 457 458 static void 459 get_rtaddrs(int addrs, struct sockaddr *sa, struct sockaddr **rti_info) 460 { 461 int i; 462 463 for (i = 0; i < RTAX_MAX; i++) { 464 if (addrs & (1 << i)) { 465 rti_info[i] = sa; 466 sa = (struct sockaddr *)((char *)(sa) + 467 roundup(sa->sa_len, sizeof(long))); 468 } else 469 rti_info[i] = NULL; 470 } 471 } 472 473 474 static int 475 isegress(char *name) 476 { 477 static int s = -1; 478 int len; 479 struct ifgroupreq ifgr; 480 struct ifg_req *ifg; 481 int rv = 0; 482 483 if (s == -1) { 484 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == -1) 485 return 0; 486 } 487 488 memset(&ifgr, 0, sizeof(ifgr)); 489 strlcpy(ifgr.ifgr_name, name, IFNAMSIZ); 490 491 if (ioctl(s, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) { 492 return 0; 493 } 494 495 len = ifgr.ifgr_len; 496 ifgr.ifgr_groups = calloc(len, 1); 497 if (ifgr.ifgr_groups == NULL) 498 err(1, "getifgroups"); 499 if (ioctl(s, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) 500 err(1, "SIOCGIFGROUP"); 501 502 ifg = ifgr.ifgr_groups; 503 for (; ifg && len >= sizeof(struct ifg_req); ifg++) { 504 len -= sizeof(struct ifg_req); 505 if (strcmp(ifg->ifgrq_group, IFG_EGRESS) == 0) 506 rv = 1; 507 } 508 509 free(ifgr.ifgr_groups); 510 return rv; 511 } 512 513 static void 514 fetchifs(void) 515 { 516 struct if_msghdr ifm; 517 int mib[6] = { CTL_NET, PF_ROUTE, 0, 0, NET_RT_IFLIST, 0 }; 518 struct rt_msghdr *rtm; 519 struct if_data *ifd; 520 struct sockaddr *sa, *rti_info[RTAX_MAX]; 521 struct sockaddr_dl *sdl; 522 char *buf = NULL, *next, *lim; 523 char name[IFNAMSIZ]; 524 size_t len; 525 int takeit = 0; 526 int foundone = 0; 527 528 len = get_sysctl(mib, 6, &buf); 529 530 memset(&ip_cur, 0, sizeof(ip_cur)); 531 lim = buf + len; 532 for (next = buf; next < lim; next += rtm->rtm_msglen) { 533 rtm = (struct rt_msghdr *)next; 534 if (rtm->rtm_version != RTM_VERSION) 535 continue; 536 switch (rtm->rtm_type) { 537 case RTM_IFINFO: 538 bcopy(next, &ifm, sizeof ifm); 539 ifd = &ifm.ifm_data; 540 541 sa = (struct sockaddr *)(next + rtm->rtm_hdrlen); 542 get_rtaddrs(ifm.ifm_addrs, sa, rti_info); 543 544 sdl = (struct sockaddr_dl *)rti_info[RTAX_IFP]; 545 if (sdl == NULL || sdl->sdl_family != AF_LINK) 546 continue; 547 bzero(name, sizeof(name)); 548 if (sdl->sdl_nlen >= IFNAMSIZ) 549 memcpy(name, sdl->sdl_data, IFNAMSIZ - 1); 550 else if (sdl->sdl_nlen > 0) 551 memcpy(name, sdl->sdl_data, sdl->sdl_nlen); 552 553 if (interface != NULL && !strcmp(name, interface)) { 554 takeit = 1; 555 } else if (interface == NULL && foundone == 0 && 556 isegress(name)) { 557 takeit = 1; 558 foundone = 1; 559 } else 560 takeit = 0; 561 if (takeit) { 562 strlcpy(ip_cur.ift_name, name, 563 sizeof(ip_cur.ift_name)); 564 ip_cur.ift_ip = ifd->ifi_ipackets; 565 ip_cur.ift_ib = ifd->ifi_ibytes; 566 ip_cur.ift_ie = ifd->ifi_ierrors; 567 ip_cur.ift_iq = ifd->ifi_iqdrops; 568 ip_cur.ift_op = ifd->ifi_opackets; 569 ip_cur.ift_ob = ifd->ifi_obytes; 570 ip_cur.ift_oe = ifd->ifi_oerrors; 571 ip_cur.ift_oq = ifd->ifi_oqdrops; 572 ip_cur.ift_co = ifd->ifi_collisions; 573 } 574 575 sum_cur.ift_ip += ifd->ifi_ipackets; 576 sum_cur.ift_ib += ifd->ifi_ibytes; 577 sum_cur.ift_ie += ifd->ifi_ierrors; 578 sum_cur.ift_iq += ifd->ifi_iqdrops; 579 sum_cur.ift_op += ifd->ifi_opackets; 580 sum_cur.ift_ob += ifd->ifi_obytes; 581 sum_cur.ift_oe += ifd->ifi_oerrors; 582 sum_cur.ift_oq += ifd->ifi_oqdrops; 583 sum_cur.ift_co += ifd->ifi_collisions; 584 break; 585 } 586 } 587 if (interface == NULL && foundone == 0) { 588 strlcpy(ip_cur.ift_name, name, 589 sizeof(ip_cur.ift_name)); 590 ip_cur.ift_ip = ifd->ifi_ipackets; 591 ip_cur.ift_ib = ifd->ifi_ibytes; 592 ip_cur.ift_ie = ifd->ifi_ierrors; 593 ip_cur.ift_iq = ifd->ifi_iqdrops; 594 ip_cur.ift_op = ifd->ifi_opackets; 595 ip_cur.ift_ob = ifd->ifi_obytes; 596 ip_cur.ift_oe = ifd->ifi_oerrors; 597 ip_cur.ift_oq = ifd->ifi_oqdrops; 598 ip_cur.ift_co = ifd->ifi_collisions; 599 } 600 free(buf); 601 } 602 603 static uint64_t 604 if_show_fails(uint64_t errors, uint64_t qdrops) 605 { 606 return (errors + qdrops); 607 } 608 609 static uint64_t 610 if_show_errors(uint64_t errors, uint64_t qdrops) 611 { 612 return (errors); 613 } 614 615 static uint64_t 616 if_show_qdrops(uint64_t errors, uint64_t qdrops) 617 { 618 return (qdrops); 619 } 620