1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2013 Gleb Smirnoff <glebius@FreeBSD.org> 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 #if 0 34 #ifndef lint 35 static char sccsid[] = "@(#)if.c 8.3 (Berkeley) 4/28/95"; 36 #endif /* not lint */ 37 #endif 38 39 #include <sys/cdefs.h> 40 __FBSDID("$FreeBSD$"); 41 42 #include <sys/param.h> 43 #include <sys/protosw.h> 44 #include <sys/socket.h> 45 #include <sys/socketvar.h> 46 #include <sys/time.h> 47 48 #include <net/if.h> 49 #include <net/if_dl.h> 50 #include <net/if_types.h> 51 #include <net/ethernet.h> 52 #include <netinet/in.h> 53 #include <netinet/in_var.h> 54 #include <arpa/inet.h> 55 #ifdef PF 56 #include <net/pfvar.h> 57 #include <net/if_pfsync.h> 58 #endif 59 60 #include <err.h> 61 #include <errno.h> 62 #include <ifaddrs.h> 63 #include <libutil.h> 64 #ifdef INET6 65 #include <netdb.h> 66 #endif 67 #include <signal.h> 68 #include <stdbool.h> 69 #include <stdint.h> 70 #include <stdio.h> 71 #include <stdlib.h> 72 #include <string.h> 73 #include <sysexits.h> 74 #include <unistd.h> 75 #include <libxo/xo.h> 76 77 #include "netstat.h" 78 79 static void sidewaysintpr(void); 80 81 #ifdef PF 82 static const char* pfsyncacts[] = { 83 /* PFSYNC_ACT_CLR */ "clear all request", 84 /* PFSYNC_ACT_INS_1301 */ "13.1 state insert", 85 /* PFSYNC_ACT_INS_ACK */ "state inserted ack", 86 /* PFSYNC_ACT_UPD_1301 */ "13.1 state update", 87 /* PFSYNC_ACT_UPD_C */ "compressed state update", 88 /* PFSYNC_ACT_UPD_REQ */ "uncompressed state request", 89 /* PFSYNC_ACT_DEL */ "state delete", 90 /* PFSYNC_ACT_DEL_C */ "compressed state delete", 91 /* PFSYNC_ACT_INS_F */ "fragment insert", 92 /* PFSYNC_ACT_DEL_F */ "fragment delete", 93 /* PFSYNC_ACT_BUS */ "bulk update mark", 94 /* PFSYNC_ACT_TDB */ "TDB replay counter update", 95 /* PFSYNC_ACT_EOF */ "end of frame mark", 96 /* PFSYNC_ACT_INS_1400 */ "state insert", 97 /* PFSYNC_ACT_UPD_1400 */ "state update", 98 }; 99 100 static const char* pfsyncacts_name[] = { 101 /* PFSYNC_ACT_CLR */ "clear-all-request", 102 /* PFSYNC_ACT_INS_1301 */ "state-insert-1301", 103 /* PFSYNC_ACT_INS_ACK */ "state-inserted-ack", 104 /* PFSYNC_ACT_UPD_1301 */ "state-update-1301", 105 /* PFSYNC_ACT_UPD_C */ "compressed-state-update", 106 /* PFSYNC_ACT_UPD_REQ */ "uncompressed-state-request", 107 /* PFSYNC_ACT_DEL */ "state-delete", 108 /* PFSYNC_ACT_DEL_C */ "compressed-state-delete", 109 /* PFSYNC_ACT_INS_F */ "fragment-insert", 110 /* PFSYNC_ACT_DEL_F */ "fragment-delete", 111 /* PFSYNC_ACT_BUS */ "bulk-update-mark", 112 /* PFSYNC_ACT_TDB */ "TDB-replay-counter-update", 113 /* PFSYNC_ACT_EOF */ "end-of-frame-mark", 114 /* PFSYNC_ACT_INS_1400 */ "state-insert", 115 /* PFSYNC_ACT_UPD_1400 */ "state-update", 116 }; 117 118 static void 119 pfsync_acts_stats(const char *list, const char *desc, uint64_t *a) 120 { 121 int i; 122 123 xo_open_list(list); 124 for (i = 0; i < PFSYNC_ACT_MAX; i++, a++) { 125 if (*a || sflag <= 1) { 126 xo_open_instance(list); 127 xo_emit("\t\t{e:name}{:count/%ju} {N:/%s%s %s}\n", 128 pfsyncacts_name[i], (uintmax_t)(*a), 129 pfsyncacts[i], plural(*a), desc); 130 xo_close_instance(list); 131 } 132 } 133 xo_close_list(list); 134 } 135 136 /* 137 * Dump pfsync statistics structure. 138 */ 139 void 140 pfsync_stats(u_long off, const char *name, int af1 __unused, int proto __unused) 141 { 142 struct pfsyncstats pfsyncstat; 143 144 if (fetch_stats("net.pfsync.stats", off, &pfsyncstat, 145 sizeof(pfsyncstat), kread) != 0) 146 return; 147 148 xo_emit("{T:/%s}:\n", name); 149 xo_open_container(name); 150 151 #define p(f, m) if (pfsyncstat.f || sflag <= 1) \ 152 xo_emit(m, (uintmax_t)pfsyncstat.f, plural(pfsyncstat.f)) 153 154 p(pfsyncs_ipackets, "\t{:received-inet-packets/%ju} " 155 "{N:/packet%s received (IPv4)}\n"); 156 p(pfsyncs_ipackets6, "\t{:received-inet6-packets/%ju} " 157 "{N:/packet%s received (IPv6)}\n"); 158 pfsync_acts_stats("input-histogram", "received", 159 &pfsyncstat.pfsyncs_iacts[0]); 160 p(pfsyncs_badif, "\t\t{:dropped-bad-interface/%ju} " 161 "{N:/packet%s discarded for bad interface}\n"); 162 p(pfsyncs_badttl, "\t\t{:dropped-bad-ttl/%ju} " 163 "{N:/packet%s discarded for bad ttl}\n"); 164 p(pfsyncs_hdrops, "\t\t{:dropped-short-header/%ju} " 165 "{N:/packet%s shorter than header}\n"); 166 p(pfsyncs_badver, "\t\t{:dropped-bad-version/%ju} " 167 "{N:/packet%s discarded for bad version}\n"); 168 p(pfsyncs_badauth, "\t\t{:dropped-bad-auth/%ju} " 169 "{N:/packet%s discarded for bad HMAC}\n"); 170 p(pfsyncs_badact,"\t\t{:dropped-bad-action/%ju} " 171 "{N:/packet%s discarded for bad action}\n"); 172 p(pfsyncs_badlen, "\t\t{:dropped-short/%ju} " 173 "{N:/packet%s discarded for short packet}\n"); 174 p(pfsyncs_badval, "\t\t{:dropped-bad-values/%ju} " 175 "{N:/state%s discarded for bad values}\n"); 176 p(pfsyncs_stale, "\t\t{:dropped-stale-state/%ju} " 177 "{N:/stale state%s}\n"); 178 p(pfsyncs_badstate, "\t\t{:dropped-failed-lookup/%ju} " 179 "{N:/failed state lookup\\/insert%s}\n"); 180 p(pfsyncs_opackets, "\t{:sent-inet-packets/%ju} " 181 "{N:/packet%s sent (IPv4})\n"); 182 p(pfsyncs_opackets6, "\t{:send-inet6-packets/%ju} " 183 "{N:/packet%s sent (IPv6})\n"); 184 pfsync_acts_stats("output-histogram", "sent", 185 &pfsyncstat.pfsyncs_oacts[0]); 186 p(pfsyncs_onomem, "\t\t{:discarded-no-memory/%ju} " 187 "{N:/failure%s due to mbuf memory error}\n"); 188 p(pfsyncs_oerrors, "\t\t{:send-errors/%ju} " 189 "{N:/send error%s}\n"); 190 #undef p 191 xo_close_container(name); 192 } 193 #endif /* PF */ 194 195 /* 196 * Display a formatted value, or a '-' in the same space. 197 */ 198 static void 199 show_stat(const char *fmt, int width, const char *name, 200 u_long value, short showvalue, int div1000) 201 { 202 const char *lsep, *rsep; 203 char newfmt[64]; 204 205 lsep = ""; 206 if (strncmp(fmt, "LS", 2) == 0) { 207 lsep = " "; 208 fmt += 2; 209 } 210 rsep = " "; 211 if (strncmp(fmt, "NRS", 3) == 0) { 212 rsep = ""; 213 fmt += 3; 214 } 215 if (showvalue == 0) { 216 /* Print just dash. */ 217 xo_emit("{P:/%s}{D:/%*s}{P:/%s}", lsep, width, "-", rsep); 218 return; 219 } 220 221 /* 222 * XXX: workaround {P:} modifier can't be empty and doesn't seem to 223 * take args... so we need to conditionally include it in the format. 224 */ 225 #define maybe_pad(pad) do { \ 226 if (strlen(pad)) { \ 227 snprintf(newfmt, sizeof(newfmt), "{P:%s}", pad); \ 228 xo_emit(newfmt); \ 229 } \ 230 } while (0) 231 232 if (hflag) { 233 char buf[5]; 234 235 /* Format in human readable form. */ 236 humanize_number(buf, sizeof(buf), (int64_t)value, "", 237 HN_AUTOSCALE, HN_NOSPACE | HN_DECIMAL | \ 238 ((div1000) ? HN_DIVISOR_1000 : 0)); 239 maybe_pad(lsep); 240 snprintf(newfmt, sizeof(newfmt), "{:%s/%%%ds}", name, width); 241 xo_emit(newfmt, buf); 242 maybe_pad(rsep); 243 } else { 244 /* Construct the format string. */ 245 maybe_pad(lsep); 246 snprintf(newfmt, sizeof(newfmt), "{:%s/%%%d%s}", 247 name, width, fmt); 248 xo_emit(newfmt, value); 249 maybe_pad(rsep); 250 } 251 } 252 253 /* 254 * Find next multiaddr for a given interface name. 255 */ 256 static struct ifmaddrs * 257 next_ifma(struct ifmaddrs *ifma, const char *name, const sa_family_t family) 258 { 259 260 for(; ifma != NULL; ifma = ifma->ifma_next) { 261 struct sockaddr_dl *sdl; 262 263 sdl = (struct sockaddr_dl *)ifma->ifma_name; 264 if (ifma->ifma_addr->sa_family == family && 265 strcmp(sdl->sdl_data, name) == 0) 266 break; 267 } 268 269 return (ifma); 270 } 271 272 enum process_op { MEASURE, EMIT }; 273 274 static void 275 process_ifa_addr(enum process_op op, struct ifaddrs *ifa, int *max_net_len, 276 int *max_addr_len, bool *network, bool *link) 277 { 278 int net_len, addr_len; 279 const char *nn, *rn; 280 281 if (op == EMIT) { 282 net_len = *max_net_len; 283 addr_len = *max_addr_len; 284 } 285 286 switch (ifa->ifa_addr->sa_family) { 287 case AF_UNSPEC: 288 if (op == MEASURE) { 289 net_len = strlen("none"); 290 addr_len = strlen("none"); 291 } else { 292 xo_emit("{:network/%-*.*s} ", net_len, net_len, 293 "none"); 294 xo_emit("{:address/%-*.*s} ", addr_len, addr_len, 295 "none"); 296 } 297 break; 298 case AF_INET: 299 #ifdef INET6 300 case AF_INET6: 301 #endif /* INET6 */ 302 nn = netname(ifa->ifa_addr, ifa->ifa_netmask); 303 rn = routename(ifa->ifa_addr, numeric_addr); 304 if (op == MEASURE) { 305 net_len = strlen(nn); 306 addr_len = strlen(rn); 307 } else { 308 xo_emit("{t:network/%-*s} ", net_len, nn); 309 xo_emit("{t:address/%-*s} ", addr_len, rn); 310 } 311 312 if (network != NULL) 313 *network = true; 314 break; 315 case AF_LINK: 316 { 317 struct sockaddr_dl *sdl; 318 char linknum[sizeof("<Link#32767>")]; 319 320 sdl = (struct sockaddr_dl *)ifa->ifa_addr; 321 snprintf(linknum, sizeof(linknum), "<Link#%d>", sdl->sdl_index); 322 if (op == MEASURE) { 323 net_len = strlen(linknum); 324 if (sdl->sdl_nlen == 0 && 325 sdl->sdl_alen == 0 && 326 sdl->sdl_slen == 0) 327 addr_len = 1; 328 else 329 addr_len = strlen(routename(ifa->ifa_addr, 1)); 330 } else { 331 xo_emit("{t:network/%-*.*s} ", net_len, net_len, 332 linknum); 333 if (sdl->sdl_nlen == 0 && 334 sdl->sdl_alen == 0 && 335 sdl->sdl_slen == 0) 336 xo_emit("{P:/%*s} ", addr_len, ""); 337 else 338 xo_emit("{t:address/%-*.*s} ", addr_len, 339 addr_len, routename(ifa->ifa_addr, 1)); 340 } 341 if (link != NULL) 342 *link = true; 343 break; 344 } 345 } 346 347 if (op == MEASURE) { 348 if (net_len > *max_net_len) 349 *max_net_len = net_len; 350 if (addr_len > *max_addr_len) 351 *max_addr_len = addr_len; 352 } 353 } 354 355 static int 356 max_num_len(int max_len, u_long num) 357 { 358 int len = 2; /* include space */ 359 360 for (; num > 10; len++) 361 num /= 10; 362 return (MAX(max_len, len)); 363 } 364 365 /* 366 * Print a description of the network interfaces. 367 */ 368 void 369 intpr(void (*pfunc)(char *), int af) 370 { 371 struct ifaddrs *ifap, *ifa; 372 struct ifmaddrs *ifmap, *ifma; 373 u_int ifn_len_max = 5, ifn_len; 374 u_int net_len = strlen("Network "), addr_len = strlen("Address "); 375 u_int npkt_len = 8, nbyte_len = 10, nerr_len = 5; 376 377 if (interval) 378 return sidewaysintpr(); 379 380 if (getifaddrs(&ifap) != 0) 381 err(EX_OSERR, "getifaddrs"); 382 if (aflag && getifmaddrs(&ifmap) != 0) 383 err(EX_OSERR, "getifmaddrs"); 384 385 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 386 if (interface != NULL && 387 strcmp(ifa->ifa_name, interface) != 0) 388 continue; 389 if (af != AF_UNSPEC && ifa->ifa_addr->sa_family != af) 390 continue; 391 ifn_len = strlen(ifa->ifa_name); 392 if ((ifa->ifa_flags & IFF_UP) == 0) 393 ++ifn_len; 394 ifn_len_max = MAX(ifn_len_max, ifn_len); 395 process_ifa_addr(MEASURE, ifa, &net_len, &addr_len, 396 NULL, NULL); 397 398 #define IFA_STAT(s) (((struct if_data *)ifa->ifa_data)->ifi_ ## s) 399 if (!hflag) { 400 npkt_len = max_num_len(npkt_len, IFA_STAT(ipackets)); 401 npkt_len = max_num_len(npkt_len, IFA_STAT(opackets)); 402 nerr_len = max_num_len(nerr_len, IFA_STAT(ierrors)); 403 nerr_len = max_num_len(nerr_len, IFA_STAT(iqdrops)); 404 nerr_len = max_num_len(nerr_len, IFA_STAT(collisions)); 405 if (dflag) 406 nerr_len = max_num_len(nerr_len, 407 IFA_STAT(oqdrops)); 408 if (bflag) { 409 nbyte_len = max_num_len(nbyte_len, 410 IFA_STAT(ibytes)); 411 nbyte_len = max_num_len(nbyte_len, 412 IFA_STAT(obytes)); 413 } 414 } 415 } 416 417 xo_open_list("interface"); 418 if (!pfunc) { 419 xo_emit("{T:/%-*.*s}", ifn_len_max, ifn_len_max, "Name"); 420 xo_emit(" {T:/%5.5s} {T:/%-*.*s} {T:/%-*.*s} {T:/%*.*s} " 421 "{T:/%*.*s} {T:/%*.*s}", 422 "Mtu", net_len, net_len, "Network", addr_len, addr_len, 423 "Address", npkt_len, npkt_len, "Ipkts", 424 nerr_len, nerr_len, "Ierrs", nerr_len, nerr_len, "Idrop"); 425 if (bflag) 426 xo_emit(" {T:/%*.*s}", nbyte_len, nbyte_len, "Ibytes"); 427 xo_emit(" {T:/%*.*s} {T:/%*.*s}", npkt_len, npkt_len, "Opkts", 428 nerr_len, nerr_len, "Oerrs"); 429 if (bflag) 430 xo_emit(" {T:/%*.*s}", nbyte_len, nbyte_len, "Obytes"); 431 xo_emit(" {T:/%*s}", nerr_len, "Coll"); 432 if (dflag) 433 xo_emit(" {T:/%*.*s}", nerr_len, nerr_len, "Drop"); 434 xo_emit("\n"); 435 } 436 437 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 438 bool network = false, link = false; 439 char *name, *xname, buf[IFNAMSIZ+1]; 440 441 if (interface != NULL && strcmp(ifa->ifa_name, interface) != 0) 442 continue; 443 444 name = ifa->ifa_name; 445 446 if (pfunc) { 447 448 (*pfunc)(name); 449 450 /* 451 * Skip all ifaddrs belonging to same interface. 452 */ 453 while(ifa->ifa_next != NULL && 454 (strcmp(ifa->ifa_next->ifa_name, name) == 0)) { 455 ifa = ifa->ifa_next; 456 } 457 continue; 458 } 459 460 if (af != AF_UNSPEC && ifa->ifa_addr->sa_family != af) 461 continue; 462 463 xo_open_instance("interface"); 464 465 if ((ifa->ifa_flags & IFF_UP) == 0) { 466 xname = stpcpy(buf, name); 467 *xname++ = '*'; 468 *xname = '\0'; 469 xname = buf; 470 } else 471 xname = name; 472 473 xo_emit("{d:/%-*.*s}{etk:name}{eq:flags/0x%x}", 474 ifn_len_max, ifn_len_max, xname, name, ifa->ifa_flags); 475 476 #define IFA_MTU(ifa) (((struct if_data *)(ifa)->ifa_data)->ifi_mtu) 477 show_stat("lu", 6, "mtu", IFA_MTU(ifa), IFA_MTU(ifa), 0); 478 #undef IFA_MTU 479 480 process_ifa_addr(EMIT, ifa, &net_len, &addr_len, 481 &network, &link); 482 483 show_stat("lu", npkt_len, "received-packets", 484 IFA_STAT(ipackets), link|network, 1); 485 show_stat("lu", nerr_len, "received-errors", IFA_STAT(ierrors), 486 link, 1); 487 show_stat("lu", nerr_len, "dropped-packets", IFA_STAT(iqdrops), 488 link, 1); 489 if (bflag) 490 show_stat("lu", nbyte_len, "received-bytes", 491 IFA_STAT(ibytes), link|network, 0); 492 show_stat("lu", npkt_len, "sent-packets", IFA_STAT(opackets), 493 link|network, 1); 494 show_stat("lu", nerr_len, "send-errors", IFA_STAT(oerrors), 495 link, 1); 496 if (bflag) 497 show_stat("lu", nbyte_len, "sent-bytes", 498 IFA_STAT(obytes), link|network, 0); 499 show_stat("NRSlu", nerr_len, "collisions", IFA_STAT(collisions), 500 link, 1); 501 if (dflag) 502 show_stat("LSlu", nerr_len, "dropped-packets", 503 IFA_STAT(oqdrops), link, 1); 504 xo_emit("\n"); 505 506 if (!aflag) { 507 xo_close_instance("interface"); 508 continue; 509 } 510 511 /* 512 * Print family's multicast addresses. 513 */ 514 xo_open_list("multicast-address"); 515 for (ifma = next_ifma(ifmap, ifa->ifa_name, 516 ifa->ifa_addr->sa_family); 517 ifma != NULL; 518 ifma = next_ifma(ifma, ifa->ifa_name, 519 ifa->ifa_addr->sa_family)) { 520 const char *fmt = NULL; 521 522 xo_open_instance("multicast-address"); 523 switch (ifma->ifma_addr->sa_family) { 524 case AF_LINK: 525 { 526 struct sockaddr_dl *sdl; 527 528 sdl = (struct sockaddr_dl *)ifma->ifma_addr; 529 if (sdl->sdl_type != IFT_ETHER && 530 sdl->sdl_type != IFT_FDDI) 531 break; 532 } 533 /* FALLTHROUGH */ 534 case AF_INET: 535 #ifdef INET6 536 case AF_INET6: 537 #endif /* INET6 */ 538 fmt = routename(ifma->ifma_addr, numeric_addr); 539 break; 540 } 541 if (fmt) { 542 if (Wflag) 543 xo_emit("{P:/%27s }" 544 "{t:address/%-17s/}", "", fmt); 545 else 546 xo_emit("{P:/%25s }" 547 "{t:address/%-17.17s/}", "", fmt); 548 if (ifma->ifma_addr->sa_family == AF_LINK) { 549 xo_emit(" {:received-packets/%8lu}", 550 IFA_STAT(imcasts)); 551 xo_emit("{P:/%*s}", bflag? 17 : 6, ""); 552 xo_emit(" {:sent-packets/%8lu}", 553 IFA_STAT(omcasts)); 554 } 555 xo_emit("\n"); 556 } 557 xo_close_instance("multicast-address"); 558 ifma = ifma->ifma_next; 559 } 560 xo_close_list("multicast-address"); 561 xo_close_instance("interface"); 562 } 563 xo_close_list("interface"); 564 565 freeifaddrs(ifap); 566 if (aflag) 567 freeifmaddrs(ifmap); 568 } 569 570 struct iftot { 571 u_long ift_ip; /* input packets */ 572 u_long ift_ie; /* input errors */ 573 u_long ift_id; /* input drops */ 574 u_long ift_op; /* output packets */ 575 u_long ift_oe; /* output errors */ 576 u_long ift_od; /* output drops */ 577 u_long ift_co; /* collisions */ 578 u_long ift_ib; /* input bytes */ 579 u_long ift_ob; /* output bytes */ 580 }; 581 582 /* 583 * Obtain stats for interface(s). 584 */ 585 static void 586 fill_iftot(struct iftot *st) 587 { 588 struct ifaddrs *ifap, *ifa; 589 bool found = false; 590 591 if (getifaddrs(&ifap) != 0) 592 xo_err(EX_OSERR, "getifaddrs"); 593 594 bzero(st, sizeof(*st)); 595 596 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 597 if (ifa->ifa_addr->sa_family != AF_LINK) 598 continue; 599 if (interface) { 600 if (strcmp(ifa->ifa_name, interface) == 0) 601 found = true; 602 else 603 continue; 604 } 605 606 st->ift_ip += IFA_STAT(ipackets); 607 st->ift_ie += IFA_STAT(ierrors); 608 st->ift_id += IFA_STAT(iqdrops); 609 st->ift_ib += IFA_STAT(ibytes); 610 st->ift_op += IFA_STAT(opackets); 611 st->ift_oe += IFA_STAT(oerrors); 612 st->ift_od += IFA_STAT(oqdrops); 613 st->ift_ob += IFA_STAT(obytes); 614 st->ift_co += IFA_STAT(collisions); 615 } 616 617 if (interface && found == false) 618 xo_err(EX_DATAERR, "interface %s not found", interface); 619 620 freeifaddrs(ifap); 621 } 622 623 /* 624 * Set a flag to indicate that a signal from the periodic itimer has been 625 * caught. 626 */ 627 static sig_atomic_t signalled; 628 static void 629 catchalarm(int signo __unused) 630 { 631 signalled = true; 632 } 633 634 /* 635 * Print a running summary of interface statistics. 636 * Repeat display every interval seconds, showing statistics 637 * collected over that interval. Assumes that interval is non-zero. 638 * First line printed at top of screen is always cumulative. 639 */ 640 static void 641 sidewaysintpr(void) 642 { 643 struct iftot ift[2], *new, *old; 644 struct itimerval interval_it; 645 int oldmask, line; 646 647 new = &ift[0]; 648 old = &ift[1]; 649 fill_iftot(old); 650 651 (void)signal(SIGALRM, catchalarm); 652 signalled = false; 653 interval_it.it_interval.tv_sec = interval; 654 interval_it.it_interval.tv_usec = 0; 655 interval_it.it_value = interval_it.it_interval; 656 setitimer(ITIMER_REAL, &interval_it, NULL); 657 xo_open_list("interface-statistics"); 658 659 banner: 660 xo_emit("{T:/%17s} {T:/%14s} {T:/%16s}\n", "input", 661 interface != NULL ? interface : "(Total)", "output"); 662 xo_emit("{T:/%10s} {T:/%5s} {T:/%5s} {T:/%10s} {T:/%10s} {T:/%5s} " 663 "{T:/%10s} {T:/%5s}", 664 "packets", "errs", "idrops", "bytes", "packets", "errs", "bytes", 665 "colls"); 666 if (dflag) 667 xo_emit(" {T:/%5.5s}", "drops"); 668 xo_emit("\n"); 669 xo_flush(); 670 line = 0; 671 672 loop: 673 if ((noutputs != 0) && (--noutputs == 0)) { 674 xo_close_list("interface-statistics"); 675 return; 676 } 677 oldmask = sigblock(sigmask(SIGALRM)); 678 while (!signalled) 679 sigpause(0); 680 signalled = false; 681 sigsetmask(oldmask); 682 line++; 683 684 fill_iftot(new); 685 686 xo_open_instance("stats"); 687 show_stat("lu", 10, "received-packets", 688 new->ift_ip - old->ift_ip, 1, 1); 689 show_stat("lu", 5, "received-errors", 690 new->ift_ie - old->ift_ie, 1, 1); 691 show_stat("lu", 5, "dropped-packets", 692 new->ift_id - old->ift_id, 1, 1); 693 show_stat("lu", 10, "received-bytes", 694 new->ift_ib - old->ift_ib, 1, 0); 695 show_stat("lu", 10, "sent-packets", 696 new->ift_op - old->ift_op, 1, 1); 697 show_stat("lu", 5, "send-errors", 698 new->ift_oe - old->ift_oe, 1, 1); 699 show_stat("lu", 10, "sent-bytes", 700 new->ift_ob - old->ift_ob, 1, 0); 701 show_stat("NRSlu", 5, "collisions", 702 new->ift_co - old->ift_co, 1, 1); 703 if (dflag) 704 show_stat("LSlu", 5, "dropped-packets", 705 new->ift_od - old->ift_od, 1, 1); 706 xo_close_instance("stats"); 707 xo_emit("\n"); 708 xo_flush(); 709 710 if (new == &ift[0]) { 711 new = &ift[1]; 712 old = &ift[0]; 713 } else { 714 new = &ift[0]; 715 old = &ift[1]; 716 } 717 718 if (line == 21) 719 goto banner; 720 else 721 goto loop; 722 723 /* NOTREACHED */ 724 } 725