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