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/pflow.h> 49 #include <net/if_pfsync.h> 50 #endif 51 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 } 184 185 void 186 pflow_stats(u_long off, const char *name, int af1 __unused, int proto __unused) 187 { 188 struct pflowstats pflowstat; 189 190 if (fetch_stats("net.pflow.stats", off, &pflowstat, 191 sizeof(pflowstat), kread) != 0) 192 return; 193 194 xo_emit("{T:/%s}:\n", name); 195 xo_open_container(name); 196 197 #define p(f, m) if (pflowstat.f || sflag <= 1) \ 198 xo_emit(m, (uintmax_t)pflowstat.f, plural(pflowstat.f)) 199 200 p(pflow_flows, "\t{:flows/%ju} {N:/flow%s sent}\n"); 201 p(pflow_packets, "\t{:packets/%ju} {N:/packet%s sent}\n"); 202 p(pflow_onomem, "\t{:nomem/%ju} " 203 "{N:/send failed due to mbuf memory error}\n"); 204 p(pflow_oerrors, "\t{:send-error/%ju} {N:/send error}\n"); 205 #undef p 206 207 xo_close_container(name); 208 } 209 #endif /* PF */ 210 211 /* 212 * Display a formatted value, or a '-' in the same space. 213 */ 214 static void 215 show_stat(const char *fmt, int width, const char *name, 216 u_long value, short showvalue, int div1000) 217 { 218 const char *lsep, *rsep; 219 char newfmt[64]; 220 221 lsep = ""; 222 if (strncmp(fmt, "LS", 2) == 0) { 223 lsep = " "; 224 fmt += 2; 225 } 226 rsep = " "; 227 if (strncmp(fmt, "NRS", 3) == 0) { 228 rsep = ""; 229 fmt += 3; 230 } 231 if (showvalue == 0) { 232 /* Print just dash. */ 233 xo_emit("{P:/%s}{D:/%*s}{P:/%s}", lsep, width, "-", rsep); 234 return; 235 } 236 237 /* 238 * XXX: workaround {P:} modifier can't be empty and doesn't seem to 239 * take args... so we need to conditionally include it in the format. 240 */ 241 #define maybe_pad(pad) do { \ 242 if (strlen(pad)) { \ 243 snprintf(newfmt, sizeof(newfmt), "{P:%s}", pad); \ 244 xo_emit(newfmt); \ 245 } \ 246 } while (0) 247 248 if (hflag) { 249 char buf[5]; 250 251 /* Format in human readable form. */ 252 humanize_number(buf, sizeof(buf), (int64_t)value, "", 253 HN_AUTOSCALE, HN_NOSPACE | HN_DECIMAL | \ 254 ((div1000) ? HN_DIVISOR_1000 : 0)); 255 maybe_pad(lsep); 256 snprintf(newfmt, sizeof(newfmt), "{:%s/%%%ds}", name, width); 257 xo_emit(newfmt, buf); 258 maybe_pad(rsep); 259 } else { 260 /* Construct the format string. */ 261 maybe_pad(lsep); 262 snprintf(newfmt, sizeof(newfmt), "{:%s/%%%d%s}", 263 name, width, fmt); 264 xo_emit(newfmt, value); 265 maybe_pad(rsep); 266 } 267 } 268 269 /* 270 * Find next multiaddr for a given interface name. 271 */ 272 static struct ifmaddrs * 273 next_ifma(struct ifmaddrs *ifma, const char *name, const sa_family_t family) 274 { 275 276 for(; ifma != NULL; ifma = ifma->ifma_next) { 277 struct sockaddr_dl *sdl; 278 279 sdl = (struct sockaddr_dl *)ifma->ifma_name; 280 if (ifma->ifma_addr->sa_family == family && 281 strcmp(sdl->sdl_data, name) == 0) 282 break; 283 } 284 285 return (ifma); 286 } 287 288 enum process_op { MEASURE, EMIT }; 289 290 static void 291 process_ifa_addr(enum process_op op, struct ifaddrs *ifa, int *max_net_len, 292 int *max_addr_len, bool *network, bool *link) 293 { 294 int net_len, addr_len; 295 const char *nn, *rn; 296 297 if (op == EMIT) { 298 net_len = *max_net_len; 299 addr_len = *max_addr_len; 300 } 301 302 switch (ifa->ifa_addr->sa_family) { 303 case AF_UNSPEC: 304 if (op == MEASURE) { 305 net_len = strlen("none"); 306 addr_len = strlen("none"); 307 } else { 308 xo_emit("{:network/%-*.*s} ", net_len, net_len, 309 "none"); 310 xo_emit("{:address/%-*.*s} ", addr_len, addr_len, 311 "none"); 312 } 313 break; 314 case AF_INET: 315 #ifdef INET6 316 case AF_INET6: 317 #endif /* INET6 */ 318 nn = netname(ifa->ifa_addr, ifa->ifa_netmask); 319 rn = routename(ifa->ifa_addr, numeric_addr); 320 if (op == MEASURE) { 321 net_len = strlen(nn); 322 addr_len = strlen(rn); 323 } else { 324 xo_emit("{t:network/%-*s} ", net_len, nn); 325 xo_emit("{t:address/%-*s} ", addr_len, rn); 326 } 327 328 if (network != NULL) 329 *network = true; 330 break; 331 case AF_LINK: 332 { 333 struct sockaddr_dl *sdl; 334 char linknum[sizeof("<Link#32767>")]; 335 336 sdl = (struct sockaddr_dl *)ifa->ifa_addr; 337 snprintf(linknum, sizeof(linknum), "<Link#%d>", sdl->sdl_index); 338 if (op == MEASURE) { 339 net_len = strlen(linknum); 340 if (sdl->sdl_nlen == 0 && 341 sdl->sdl_alen == 0 && 342 sdl->sdl_slen == 0) 343 addr_len = 1; 344 else 345 addr_len = strlen(routename(ifa->ifa_addr, 1)); 346 } else { 347 xo_emit("{t:network/%-*.*s} ", net_len, net_len, 348 linknum); 349 if (sdl->sdl_nlen == 0 && 350 sdl->sdl_alen == 0 && 351 sdl->sdl_slen == 0) 352 xo_emit("{P:/%*s} ", addr_len, ""); 353 else 354 xo_emit("{t:address/%-*.*s} ", addr_len, 355 addr_len, routename(ifa->ifa_addr, 1)); 356 } 357 if (link != NULL) 358 *link = true; 359 break; 360 } 361 } 362 363 if (op == MEASURE) { 364 if (net_len > *max_net_len) 365 *max_net_len = net_len; 366 if (addr_len > *max_addr_len) 367 *max_addr_len = addr_len; 368 } 369 } 370 371 static int 372 max_num_len(int max_len, u_long num) 373 { 374 int len = 2; /* include space */ 375 376 for (; num > 10; len++) 377 num /= 10; 378 return (MAX(max_len, len)); 379 } 380 381 /* 382 * Print a description of the network interfaces. 383 */ 384 void 385 intpr(void (*pfunc)(char *), int af) 386 { 387 struct ifaddrs *ifap, *ifa; 388 struct ifmaddrs *ifmap, *ifma; 389 u_int ifn_len_max = 5, ifn_len; 390 u_int net_len = strlen("Network "), addr_len = strlen("Address "); 391 u_int npkt_len = 8, nbyte_len = 10, nerr_len = 5; 392 393 if (interval) 394 return sidewaysintpr(); 395 396 if (getifaddrs(&ifap) != 0) 397 xo_err(EX_OSERR, "getifaddrs"); 398 if (aflag && getifmaddrs(&ifmap) != 0) 399 xo_err(EX_OSERR, "getifmaddrs"); 400 401 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 402 if (interface != NULL && 403 strcmp(ifa->ifa_name, interface) != 0) 404 continue; 405 if (af != AF_UNSPEC && ifa->ifa_addr->sa_family != af) 406 continue; 407 ifn_len = strlen(ifa->ifa_name); 408 if ((ifa->ifa_flags & IFF_UP) == 0) 409 ++ifn_len; 410 ifn_len_max = MAX(ifn_len_max, ifn_len); 411 process_ifa_addr(MEASURE, ifa, &net_len, &addr_len, 412 NULL, NULL); 413 414 #define IFA_STAT(s) (((struct if_data *)ifa->ifa_data)->ifi_ ## s) 415 if (!hflag) { 416 npkt_len = max_num_len(npkt_len, IFA_STAT(ipackets)); 417 npkt_len = max_num_len(npkt_len, IFA_STAT(opackets)); 418 nerr_len = max_num_len(nerr_len, IFA_STAT(ierrors)); 419 nerr_len = max_num_len(nerr_len, IFA_STAT(iqdrops)); 420 nerr_len = max_num_len(nerr_len, IFA_STAT(collisions)); 421 if (dflag) 422 nerr_len = max_num_len(nerr_len, 423 IFA_STAT(oqdrops)); 424 if (bflag) { 425 nbyte_len = max_num_len(nbyte_len, 426 IFA_STAT(ibytes)); 427 nbyte_len = max_num_len(nbyte_len, 428 IFA_STAT(obytes)); 429 } 430 } 431 } 432 433 xo_open_list("interface"); 434 if (!pfunc) { 435 xo_emit("{T:/%-*.*s}", ifn_len_max, ifn_len_max, "Name"); 436 xo_emit(" {T:/%5.5s} {T:/%-*.*s} {T:/%-*.*s} {T:/%*.*s} " 437 "{T:/%*.*s} {T:/%*.*s}", 438 "Mtu", net_len, net_len, "Network", addr_len, addr_len, 439 "Address", npkt_len, npkt_len, "Ipkts", 440 nerr_len, nerr_len, "Ierrs", nerr_len, nerr_len, "Idrop"); 441 if (bflag) 442 xo_emit(" {T:/%*.*s}", nbyte_len, nbyte_len, "Ibytes"); 443 xo_emit(" {T:/%*.*s} {T:/%*.*s}", npkt_len, npkt_len, "Opkts", 444 nerr_len, nerr_len, "Oerrs"); 445 if (bflag) 446 xo_emit(" {T:/%*.*s}", nbyte_len, nbyte_len, "Obytes"); 447 xo_emit(" {T:/%*s}", nerr_len, "Coll"); 448 if (dflag) 449 xo_emit(" {T:/%*.*s}", nerr_len, nerr_len, "Drop"); 450 xo_emit("\n"); 451 } 452 453 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 454 bool network = false, link = false; 455 char *name, *xname, buf[IFNAMSIZ+1]; 456 457 if (interface != NULL && strcmp(ifa->ifa_name, interface) != 0) 458 continue; 459 460 name = ifa->ifa_name; 461 462 if (pfunc) { 463 464 (*pfunc)(name); 465 466 /* 467 * Skip all ifaddrs belonging to same interface. 468 */ 469 while(ifa->ifa_next != NULL && 470 (strcmp(ifa->ifa_next->ifa_name, name) == 0)) { 471 ifa = ifa->ifa_next; 472 } 473 continue; 474 } 475 476 if (af != AF_UNSPEC && ifa->ifa_addr->sa_family != af) 477 continue; 478 479 xo_open_instance("interface"); 480 481 if ((ifa->ifa_flags & IFF_UP) == 0) { 482 xname = stpcpy(buf, name); 483 *xname++ = '*'; 484 *xname = '\0'; 485 xname = buf; 486 } else 487 xname = name; 488 489 xo_emit("{d:/%-*.*s}{etk:name}{eq:flags/0x%x}", 490 ifn_len_max, ifn_len_max, xname, name, ifa->ifa_flags); 491 492 #define IFA_MTU(ifa) (((struct if_data *)(ifa)->ifa_data)->ifi_mtu) 493 show_stat("lu", 6, "mtu", IFA_MTU(ifa), IFA_MTU(ifa), 0); 494 #undef IFA_MTU 495 496 process_ifa_addr(EMIT, ifa, &net_len, &addr_len, 497 &network, &link); 498 499 show_stat("lu", npkt_len, "received-packets", 500 IFA_STAT(ipackets), link|network, 1); 501 show_stat("lu", nerr_len, "received-errors", IFA_STAT(ierrors), 502 link, 1); 503 show_stat("lu", nerr_len, "dropped-packets", IFA_STAT(iqdrops), 504 link, 1); 505 if (bflag) 506 show_stat("lu", nbyte_len, "received-bytes", 507 IFA_STAT(ibytes), link|network, 0); 508 show_stat("lu", npkt_len, "sent-packets", IFA_STAT(opackets), 509 link|network, 1); 510 show_stat("lu", nerr_len, "send-errors", IFA_STAT(oerrors), 511 link, 1); 512 if (bflag) 513 show_stat("lu", nbyte_len, "sent-bytes", 514 IFA_STAT(obytes), link|network, 0); 515 show_stat("NRSlu", nerr_len, "collisions", IFA_STAT(collisions), 516 link, 1); 517 if (dflag) 518 show_stat("LSlu", nerr_len, "dropped-packets", 519 IFA_STAT(oqdrops), link, 1); 520 xo_emit("\n"); 521 522 if (!aflag) { 523 xo_close_instance("interface"); 524 continue; 525 } 526 527 /* 528 * Print family's multicast addresses. 529 */ 530 xo_open_list("multicast-address"); 531 for (ifma = next_ifma(ifmap, ifa->ifa_name, 532 ifa->ifa_addr->sa_family); 533 ifma != NULL; 534 ifma = next_ifma(ifma, ifa->ifa_name, 535 ifa->ifa_addr->sa_family)) { 536 const char *fmt = NULL; 537 538 xo_open_instance("multicast-address"); 539 switch (ifma->ifma_addr->sa_family) { 540 case AF_LINK: 541 { 542 struct sockaddr_dl *sdl; 543 544 sdl = (struct sockaddr_dl *)ifma->ifma_addr; 545 if (sdl->sdl_type != IFT_ETHER && 546 sdl->sdl_type != IFT_FDDI) 547 break; 548 } 549 /* FALLTHROUGH */ 550 case AF_INET: 551 #ifdef INET6 552 case AF_INET6: 553 #endif /* INET6 */ 554 fmt = routename(ifma->ifma_addr, numeric_addr); 555 break; 556 } 557 if (fmt) { 558 if (Wflag) 559 xo_emit("{P:/%27s }" 560 "{t:address/%-17s/}", "", fmt); 561 else 562 xo_emit("{P:/%25s }" 563 "{t:address/%-17.17s/}", "", fmt); 564 if (ifma->ifma_addr->sa_family == AF_LINK) { 565 xo_emit(" {:received-packets/%8lu}", 566 IFA_STAT(imcasts)); 567 xo_emit("{P:/%*s}", bflag? 17 : 6, ""); 568 xo_emit(" {:sent-packets/%8lu}", 569 IFA_STAT(omcasts)); 570 } 571 xo_emit("\n"); 572 } 573 xo_close_instance("multicast-address"); 574 ifma = ifma->ifma_next; 575 } 576 xo_close_list("multicast-address"); 577 xo_close_instance("interface"); 578 } 579 xo_close_list("interface"); 580 581 freeifaddrs(ifap); 582 if (aflag) 583 freeifmaddrs(ifmap); 584 } 585 586 struct iftot { 587 u_long ift_ip; /* input packets */ 588 u_long ift_ie; /* input errors */ 589 u_long ift_id; /* input drops */ 590 u_long ift_op; /* output packets */ 591 u_long ift_oe; /* output errors */ 592 u_long ift_od; /* output drops */ 593 u_long ift_co; /* collisions */ 594 u_long ift_ib; /* input bytes */ 595 u_long ift_ob; /* output bytes */ 596 }; 597 598 /* 599 * Obtain stats for interface(s). 600 */ 601 static void 602 fill_iftot(struct iftot *st) 603 { 604 struct ifaddrs *ifap, *ifa; 605 bool found = false; 606 607 if (getifaddrs(&ifap) != 0) 608 xo_err(EX_OSERR, "getifaddrs"); 609 610 bzero(st, sizeof(*st)); 611 612 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 613 if (ifa->ifa_addr->sa_family != AF_LINK) 614 continue; 615 if (interface) { 616 if (strcmp(ifa->ifa_name, interface) == 0) 617 found = true; 618 else 619 continue; 620 } 621 622 st->ift_ip += IFA_STAT(ipackets); 623 st->ift_ie += IFA_STAT(ierrors); 624 st->ift_id += IFA_STAT(iqdrops); 625 st->ift_ib += IFA_STAT(ibytes); 626 st->ift_op += IFA_STAT(opackets); 627 st->ift_oe += IFA_STAT(oerrors); 628 st->ift_od += IFA_STAT(oqdrops); 629 st->ift_ob += IFA_STAT(obytes); 630 st->ift_co += IFA_STAT(collisions); 631 } 632 633 if (interface && found == false) 634 xo_err(EX_DATAERR, "interface %s not found", interface); 635 636 freeifaddrs(ifap); 637 } 638 639 /* 640 * Set a flag to indicate that a signal from the periodic itimer has been 641 * caught. 642 */ 643 static sig_atomic_t signalled; 644 static void 645 catchalarm(int signo __unused) 646 { 647 signalled = true; 648 } 649 650 /* 651 * Print a running summary of interface statistics. 652 * Repeat display every interval seconds, showing statistics 653 * collected over that interval. Assumes that interval is non-zero. 654 * First line printed at top of screen is always cumulative. 655 */ 656 static void 657 sidewaysintpr(void) 658 { 659 struct iftot ift[2], *new, *old; 660 struct itimerval interval_it; 661 int oldmask, line; 662 663 new = &ift[0]; 664 old = &ift[1]; 665 fill_iftot(old); 666 667 (void)signal(SIGALRM, catchalarm); 668 signalled = false; 669 interval_it.it_interval.tv_sec = interval; 670 interval_it.it_interval.tv_usec = 0; 671 interval_it.it_value = interval_it.it_interval; 672 setitimer(ITIMER_REAL, &interval_it, NULL); 673 xo_open_list("interface-statistics"); 674 675 banner: 676 xo_emit("{T:/%17s} {T:/%14s} {T:/%16s}\n", "input", 677 interface != NULL ? interface : "(Total)", "output"); 678 xo_emit("{T:/%10s} {T:/%5s} {T:/%5s} {T:/%10s} {T:/%10s} {T:/%5s} " 679 "{T:/%10s} {T:/%5s}", 680 "packets", "errs", "idrops", "bytes", "packets", "errs", "bytes", 681 "colls"); 682 if (dflag) 683 xo_emit(" {T:/%5.5s}", "drops"); 684 xo_emit("\n"); 685 xo_flush(); 686 line = 0; 687 688 loop: 689 if ((noutputs != 0) && (--noutputs == 0)) { 690 xo_close_list("interface-statistics"); 691 return; 692 } 693 oldmask = sigblock(sigmask(SIGALRM)); 694 while (!signalled) 695 sigpause(0); 696 signalled = false; 697 sigsetmask(oldmask); 698 line++; 699 700 fill_iftot(new); 701 702 xo_open_instance("stats"); 703 show_stat("lu", 10, "received-packets", 704 new->ift_ip - old->ift_ip, 1, 1); 705 show_stat("lu", 5, "received-errors", 706 new->ift_ie - old->ift_ie, 1, 1); 707 show_stat("lu", 5, "dropped-packets", 708 new->ift_id - old->ift_id, 1, 1); 709 show_stat("lu", 10, "received-bytes", 710 new->ift_ib - old->ift_ib, 1, 0); 711 show_stat("lu", 10, "sent-packets", 712 new->ift_op - old->ift_op, 1, 1); 713 show_stat("lu", 5, "send-errors", 714 new->ift_oe - old->ift_oe, 1, 1); 715 show_stat("lu", 10, "sent-bytes", 716 new->ift_ob - old->ift_ob, 1, 0); 717 show_stat("NRSlu", 5, "collisions", 718 new->ift_co - old->ift_co, 1, 1); 719 if (dflag) 720 show_stat("LSlu", 5, "dropped-packets", 721 new->ift_od - old->ift_od, 1, 1); 722 xo_close_instance("stats"); 723 xo_emit("\n"); 724 xo_flush(); 725 726 if (new == &ift[0]) { 727 new = &ift[1]; 728 old = &ift[0]; 729 } else { 730 new = &ift[0]; 731 old = &ift[1]; 732 } 733 734 if (line == 21) 735 goto banner; 736 else 737 goto loop; 738 739 /* NOTREACHED */ 740 } 741