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