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 <err.h> 53 #include <errno.h> 54 #include <ifaddrs.h> 55 #include <libutil.h> 56 #ifdef INET6 57 #include <netdb.h> 58 #endif 59 #include <signal.h> 60 #include <stdbool.h> 61 #include <stdint.h> 62 #include <stdio.h> 63 #include <stdlib.h> 64 #include <string.h> 65 #include <sysexits.h> 66 #include <unistd.h> 67 #include <libxo/xo.h> 68 69 #include "netstat.h" 70 71 static void sidewaysintpr(void); 72 73 #ifdef PF 74 static const char* pfsyncacts[] = { 75 /* PFSYNC_ACT_CLR */ "clear all request", 76 /* PFSYNC_ACT_INS_1301 */ "13.1 state insert", 77 /* PFSYNC_ACT_INS_ACK */ "state inserted ack", 78 /* PFSYNC_ACT_UPD_1301 */ "13.1 state update", 79 /* PFSYNC_ACT_UPD_C */ "compressed state update", 80 /* PFSYNC_ACT_UPD_REQ */ "uncompressed state request", 81 /* PFSYNC_ACT_DEL */ "state delete", 82 /* PFSYNC_ACT_DEL_C */ "compressed state delete", 83 /* PFSYNC_ACT_INS_F */ "fragment insert", 84 /* PFSYNC_ACT_DEL_F */ "fragment delete", 85 /* PFSYNC_ACT_BUS */ "bulk update mark", 86 /* PFSYNC_ACT_TDB */ "TDB replay counter update", 87 /* PFSYNC_ACT_EOF */ "end of frame mark", 88 /* PFSYNC_ACT_INS_1400 */ "state insert", 89 /* PFSYNC_ACT_UPD_1400 */ "state update", 90 }; 91 92 static const char* pfsyncacts_name[] = { 93 /* PFSYNC_ACT_CLR */ "clear-all-request", 94 /* PFSYNC_ACT_INS_1301 */ "state-insert-1301", 95 /* PFSYNC_ACT_INS_ACK */ "state-inserted-ack", 96 /* PFSYNC_ACT_UPD_1301 */ "state-update-1301", 97 /* PFSYNC_ACT_UPD_C */ "compressed-state-update", 98 /* PFSYNC_ACT_UPD_REQ */ "uncompressed-state-request", 99 /* PFSYNC_ACT_DEL */ "state-delete", 100 /* PFSYNC_ACT_DEL_C */ "compressed-state-delete", 101 /* PFSYNC_ACT_INS_F */ "fragment-insert", 102 /* PFSYNC_ACT_DEL_F */ "fragment-delete", 103 /* PFSYNC_ACT_BUS */ "bulk-update-mark", 104 /* PFSYNC_ACT_TDB */ "TDB-replay-counter-update", 105 /* PFSYNC_ACT_EOF */ "end-of-frame-mark", 106 /* PFSYNC_ACT_INS_1400 */ "state-insert", 107 /* PFSYNC_ACT_UPD_1400 */ "state-update", 108 }; 109 110 static void 111 pfsync_acts_stats(const char *list, const char *desc, uint64_t *a) 112 { 113 int i; 114 115 xo_open_list(list); 116 for (i = 0; i < PFSYNC_ACT_MAX; i++, a++) { 117 if (*a || sflag <= 1) { 118 xo_open_instance(list); 119 xo_emit("\t\t{e:name}{:count/%ju} {N:/%s%s %s}\n", 120 pfsyncacts_name[i], (uintmax_t)(*a), 121 pfsyncacts[i], plural(*a), desc); 122 xo_close_instance(list); 123 } 124 } 125 xo_close_list(list); 126 } 127 128 /* 129 * Dump pfsync statistics structure. 130 */ 131 void 132 pfsync_stats(u_long off, const char *name, int af1 __unused, int proto __unused) 133 { 134 struct pfsyncstats pfsyncstat; 135 136 if (fetch_stats("net.pfsync.stats", off, &pfsyncstat, 137 sizeof(pfsyncstat), kread) != 0) 138 return; 139 140 xo_emit("{T:/%s}:\n", name); 141 xo_open_container(name); 142 143 #define p(f, m) if (pfsyncstat.f || sflag <= 1) \ 144 xo_emit(m, (uintmax_t)pfsyncstat.f, plural(pfsyncstat.f)) 145 146 p(pfsyncs_ipackets, "\t{:received-inet-packets/%ju} " 147 "{N:/packet%s received (IPv4)}\n"); 148 p(pfsyncs_ipackets6, "\t{:received-inet6-packets/%ju} " 149 "{N:/packet%s received (IPv6)}\n"); 150 pfsync_acts_stats("input-histogram", "received", 151 &pfsyncstat.pfsyncs_iacts[0]); 152 p(pfsyncs_badif, "\t\t{:dropped-bad-interface/%ju} " 153 "{N:/packet%s discarded for bad interface}\n"); 154 p(pfsyncs_badttl, "\t\t{:dropped-bad-ttl/%ju} " 155 "{N:/packet%s discarded for bad ttl}\n"); 156 p(pfsyncs_hdrops, "\t\t{:dropped-short-header/%ju} " 157 "{N:/packet%s shorter than header}\n"); 158 p(pfsyncs_badver, "\t\t{:dropped-bad-version/%ju} " 159 "{N:/packet%s discarded for bad version}\n"); 160 p(pfsyncs_badauth, "\t\t{:dropped-bad-auth/%ju} " 161 "{N:/packet%s discarded for bad HMAC}\n"); 162 p(pfsyncs_badact,"\t\t{:dropped-bad-action/%ju} " 163 "{N:/packet%s discarded for bad action}\n"); 164 p(pfsyncs_badlen, "\t\t{:dropped-short/%ju} " 165 "{N:/packet%s discarded for short packet}\n"); 166 p(pfsyncs_badval, "\t\t{:dropped-bad-values/%ju} " 167 "{N:/state%s discarded for bad values}\n"); 168 p(pfsyncs_stale, "\t\t{:dropped-stale-state/%ju} " 169 "{N:/stale state%s}\n"); 170 p(pfsyncs_badstate, "\t\t{:dropped-failed-lookup/%ju} " 171 "{N:/failed state lookup\\/insert%s}\n"); 172 p(pfsyncs_opackets, "\t{:sent-inet-packets/%ju} " 173 "{N:/packet%s sent (IPv4})\n"); 174 p(pfsyncs_opackets6, "\t{:send-inet6-packets/%ju} " 175 "{N:/packet%s sent (IPv6})\n"); 176 pfsync_acts_stats("output-histogram", "sent", 177 &pfsyncstat.pfsyncs_oacts[0]); 178 p(pfsyncs_onomem, "\t\t{:discarded-no-memory/%ju} " 179 "{N:/failure%s due to mbuf memory error}\n"); 180 p(pfsyncs_oerrors, "\t\t{:send-errors/%ju} " 181 "{N:/send error%s}\n"); 182 #undef p 183 xo_close_container(name); 184 } 185 186 void 187 pflow_stats(u_long off, const char *name, int af1 __unused, int proto __unused) 188 { 189 struct pflowstats pflowstat; 190 191 if (fetch_stats("net.pflow.stats", off, &pflowstat, 192 sizeof(pflowstat), kread) != 0) 193 return; 194 195 xo_emit("{T:/%s}:\n", name); 196 xo_open_container(name); 197 198 #define p(f, m) if (pflowstat.f || sflag <= 1) \ 199 xo_emit(m, (uintmax_t)pflowstat.f, plural(pflowstat.f)) 200 201 p(pflow_flows, "\t{:flows/%ju} {N:/flow%s sent}\n"); 202 p(pflow_packets, "\t{:packets/%ju} {N:/packet%s sent}\n"); 203 p(pflow_onomem, "\t{:nomem/%ju} " 204 "{N:/send failed due to mbuf memory error}\n"); 205 p(pflow_oerrors, "\t{:send-error/%ju} {N:/send error}\n"); 206 #undef p 207 208 xo_close_container(name); 209 } 210 #endif /* PF */ 211 212 /* 213 * Display a formatted value, or a '-' in the same space. 214 */ 215 static void 216 show_stat(const char *fmt, int width, const char *name, 217 u_long value, short showvalue, int div1000) 218 { 219 const char *lsep, *rsep; 220 char newfmt[64]; 221 222 lsep = ""; 223 if (strncmp(fmt, "LS", 2) == 0) { 224 lsep = " "; 225 fmt += 2; 226 } 227 rsep = " "; 228 if (strncmp(fmt, "NRS", 3) == 0) { 229 rsep = ""; 230 fmt += 3; 231 } 232 if (showvalue == 0) { 233 /* Print just dash. */ 234 xo_emit("{P:/%s}{D:/%*s}{P:/%s}", lsep, width, "-", rsep); 235 return; 236 } 237 238 /* 239 * XXX: workaround {P:} modifier can't be empty and doesn't seem to 240 * take args... so we need to conditionally include it in the format. 241 */ 242 #define maybe_pad(pad) do { \ 243 if (strlen(pad)) { \ 244 snprintf(newfmt, sizeof(newfmt), "{P:%s}", pad); \ 245 xo_emit(newfmt); \ 246 } \ 247 } while (0) 248 249 if (hflag) { 250 char buf[5]; 251 252 /* Format in human readable form. */ 253 humanize_number(buf, sizeof(buf), (int64_t)value, "", 254 HN_AUTOSCALE, HN_NOSPACE | HN_DECIMAL | \ 255 ((div1000) ? HN_DIVISOR_1000 : 0)); 256 maybe_pad(lsep); 257 snprintf(newfmt, sizeof(newfmt), "{:%s/%%%ds}", name, width); 258 xo_emit(newfmt, buf); 259 maybe_pad(rsep); 260 } else { 261 /* Construct the format string. */ 262 maybe_pad(lsep); 263 snprintf(newfmt, sizeof(newfmt), "{:%s/%%%d%s}", 264 name, width, fmt); 265 xo_emit(newfmt, value); 266 maybe_pad(rsep); 267 } 268 } 269 270 /* 271 * Find next multiaddr for a given interface name. 272 */ 273 static struct ifmaddrs * 274 next_ifma(struct ifmaddrs *ifma, const char *name, const sa_family_t family) 275 { 276 277 for(; ifma != NULL; ifma = ifma->ifma_next) { 278 struct sockaddr_dl *sdl; 279 280 sdl = (struct sockaddr_dl *)ifma->ifma_name; 281 if (ifma->ifma_addr->sa_family == family && 282 strcmp(sdl->sdl_data, name) == 0) 283 break; 284 } 285 286 return (ifma); 287 } 288 289 enum process_op { MEASURE, EMIT }; 290 291 static void 292 process_ifa_addr(enum process_op op, struct ifaddrs *ifa, int *max_net_len, 293 int *max_addr_len, bool *network, bool *link) 294 { 295 int net_len, addr_len; 296 const char *nn, *rn; 297 298 if (op == EMIT) { 299 net_len = *max_net_len; 300 addr_len = *max_addr_len; 301 } 302 303 switch (ifa->ifa_addr->sa_family) { 304 case AF_UNSPEC: 305 if (op == MEASURE) { 306 net_len = strlen("none"); 307 addr_len = strlen("none"); 308 } else { 309 xo_emit("{:network/%-*.*s} ", net_len, net_len, 310 "none"); 311 xo_emit("{:address/%-*.*s} ", addr_len, addr_len, 312 "none"); 313 } 314 break; 315 case AF_INET: 316 #ifdef INET6 317 case AF_INET6: 318 #endif /* INET6 */ 319 nn = netname(ifa->ifa_addr, ifa->ifa_netmask); 320 rn = routename(ifa->ifa_addr, numeric_addr); 321 if (op == MEASURE) { 322 net_len = strlen(nn); 323 addr_len = strlen(rn); 324 } else { 325 xo_emit("{t:network/%-*s} ", net_len, nn); 326 xo_emit("{t:address/%-*s} ", addr_len, rn); 327 } 328 329 if (network != NULL) 330 *network = true; 331 break; 332 case AF_LINK: 333 { 334 struct sockaddr_dl *sdl; 335 char linknum[sizeof("<Link#32767>")]; 336 337 sdl = (struct sockaddr_dl *)ifa->ifa_addr; 338 snprintf(linknum, sizeof(linknum), "<Link#%d>", sdl->sdl_index); 339 if (op == MEASURE) { 340 net_len = strlen(linknum); 341 if (sdl->sdl_nlen == 0 && 342 sdl->sdl_alen == 0 && 343 sdl->sdl_slen == 0) 344 addr_len = 1; 345 else 346 addr_len = strlen(routename(ifa->ifa_addr, 1)); 347 } else { 348 xo_emit("{t:network/%-*.*s} ", net_len, net_len, 349 linknum); 350 if (sdl->sdl_nlen == 0 && 351 sdl->sdl_alen == 0 && 352 sdl->sdl_slen == 0) 353 xo_emit("{P:/%*s} ", addr_len, ""); 354 else 355 xo_emit("{t:address/%-*.*s} ", addr_len, 356 addr_len, routename(ifa->ifa_addr, 1)); 357 } 358 if (link != NULL) 359 *link = true; 360 break; 361 } 362 } 363 364 if (op == MEASURE) { 365 if (net_len > *max_net_len) 366 *max_net_len = net_len; 367 if (addr_len > *max_addr_len) 368 *max_addr_len = addr_len; 369 } 370 } 371 372 static int 373 max_num_len(int max_len, u_long num) 374 { 375 int len = 2; /* include space */ 376 377 for (; num > 10; len++) 378 num /= 10; 379 return (MAX(max_len, len)); 380 } 381 382 /* 383 * Print a description of the network interfaces. 384 */ 385 void 386 intpr(void (*pfunc)(char *), int af) 387 { 388 struct ifaddrs *ifap, *ifa; 389 struct ifmaddrs *ifmap, *ifma; 390 u_int ifn_len_max = 5, ifn_len; 391 u_int net_len = strlen("Network "), addr_len = strlen("Address "); 392 u_int npkt_len = 8, nbyte_len = 10, nerr_len = 5; 393 394 if (interval) 395 return sidewaysintpr(); 396 397 if (getifaddrs(&ifap) != 0) 398 err(EX_OSERR, "getifaddrs"); 399 if (aflag && getifmaddrs(&ifmap) != 0) 400 err(EX_OSERR, "getifmaddrs"); 401 402 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 403 if (interface != NULL && 404 strcmp(ifa->ifa_name, interface) != 0) 405 continue; 406 if (af != AF_UNSPEC && ifa->ifa_addr->sa_family != af) 407 continue; 408 ifn_len = strlen(ifa->ifa_name); 409 if ((ifa->ifa_flags & IFF_UP) == 0) 410 ++ifn_len; 411 ifn_len_max = MAX(ifn_len_max, ifn_len); 412 process_ifa_addr(MEASURE, ifa, &net_len, &addr_len, 413 NULL, NULL); 414 415 #define IFA_STAT(s) (((struct if_data *)ifa->ifa_data)->ifi_ ## s) 416 if (!hflag) { 417 npkt_len = max_num_len(npkt_len, IFA_STAT(ipackets)); 418 npkt_len = max_num_len(npkt_len, IFA_STAT(opackets)); 419 nerr_len = max_num_len(nerr_len, IFA_STAT(ierrors)); 420 nerr_len = max_num_len(nerr_len, IFA_STAT(iqdrops)); 421 nerr_len = max_num_len(nerr_len, IFA_STAT(collisions)); 422 if (dflag) 423 nerr_len = max_num_len(nerr_len, 424 IFA_STAT(oqdrops)); 425 if (bflag) { 426 nbyte_len = max_num_len(nbyte_len, 427 IFA_STAT(ibytes)); 428 nbyte_len = max_num_len(nbyte_len, 429 IFA_STAT(obytes)); 430 } 431 } 432 } 433 434 xo_open_list("interface"); 435 if (!pfunc) { 436 xo_emit("{T:/%-*.*s}", ifn_len_max, ifn_len_max, "Name"); 437 xo_emit(" {T:/%5.5s} {T:/%-*.*s} {T:/%-*.*s} {T:/%*.*s} " 438 "{T:/%*.*s} {T:/%*.*s}", 439 "Mtu", net_len, net_len, "Network", addr_len, addr_len, 440 "Address", npkt_len, npkt_len, "Ipkts", 441 nerr_len, nerr_len, "Ierrs", nerr_len, nerr_len, "Idrop"); 442 if (bflag) 443 xo_emit(" {T:/%*.*s}", nbyte_len, nbyte_len, "Ibytes"); 444 xo_emit(" {T:/%*.*s} {T:/%*.*s}", npkt_len, npkt_len, "Opkts", 445 nerr_len, nerr_len, "Oerrs"); 446 if (bflag) 447 xo_emit(" {T:/%*.*s}", nbyte_len, nbyte_len, "Obytes"); 448 xo_emit(" {T:/%*s}", nerr_len, "Coll"); 449 if (dflag) 450 xo_emit(" {T:/%*.*s}", nerr_len, nerr_len, "Drop"); 451 xo_emit("\n"); 452 } 453 454 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 455 bool network = false, link = false; 456 char *name, *xname, buf[IFNAMSIZ+1]; 457 458 if (interface != NULL && strcmp(ifa->ifa_name, interface) != 0) 459 continue; 460 461 name = ifa->ifa_name; 462 463 if (pfunc) { 464 465 (*pfunc)(name); 466 467 /* 468 * Skip all ifaddrs belonging to same interface. 469 */ 470 while(ifa->ifa_next != NULL && 471 (strcmp(ifa->ifa_next->ifa_name, name) == 0)) { 472 ifa = ifa->ifa_next; 473 } 474 continue; 475 } 476 477 if (af != AF_UNSPEC && ifa->ifa_addr->sa_family != af) 478 continue; 479 480 xo_open_instance("interface"); 481 482 if ((ifa->ifa_flags & IFF_UP) == 0) { 483 xname = stpcpy(buf, name); 484 *xname++ = '*'; 485 *xname = '\0'; 486 xname = buf; 487 } else 488 xname = name; 489 490 xo_emit("{d:/%-*.*s}{etk:name}{eq:flags/0x%x}", 491 ifn_len_max, ifn_len_max, xname, name, ifa->ifa_flags); 492 493 #define IFA_MTU(ifa) (((struct if_data *)(ifa)->ifa_data)->ifi_mtu) 494 show_stat("lu", 6, "mtu", IFA_MTU(ifa), IFA_MTU(ifa), 0); 495 #undef IFA_MTU 496 497 process_ifa_addr(EMIT, ifa, &net_len, &addr_len, 498 &network, &link); 499 500 show_stat("lu", npkt_len, "received-packets", 501 IFA_STAT(ipackets), link|network, 1); 502 show_stat("lu", nerr_len, "received-errors", IFA_STAT(ierrors), 503 link, 1); 504 show_stat("lu", nerr_len, "dropped-packets", IFA_STAT(iqdrops), 505 link, 1); 506 if (bflag) 507 show_stat("lu", nbyte_len, "received-bytes", 508 IFA_STAT(ibytes), link|network, 0); 509 show_stat("lu", npkt_len, "sent-packets", IFA_STAT(opackets), 510 link|network, 1); 511 show_stat("lu", nerr_len, "send-errors", IFA_STAT(oerrors), 512 link, 1); 513 if (bflag) 514 show_stat("lu", nbyte_len, "sent-bytes", 515 IFA_STAT(obytes), link|network, 0); 516 show_stat("NRSlu", nerr_len, "collisions", IFA_STAT(collisions), 517 link, 1); 518 if (dflag) 519 show_stat("LSlu", nerr_len, "dropped-packets", 520 IFA_STAT(oqdrops), link, 1); 521 xo_emit("\n"); 522 523 if (!aflag) { 524 xo_close_instance("interface"); 525 continue; 526 } 527 528 /* 529 * Print family's multicast addresses. 530 */ 531 xo_open_list("multicast-address"); 532 for (ifma = next_ifma(ifmap, ifa->ifa_name, 533 ifa->ifa_addr->sa_family); 534 ifma != NULL; 535 ifma = next_ifma(ifma, ifa->ifa_name, 536 ifa->ifa_addr->sa_family)) { 537 const char *fmt = NULL; 538 539 xo_open_instance("multicast-address"); 540 switch (ifma->ifma_addr->sa_family) { 541 case AF_LINK: 542 { 543 struct sockaddr_dl *sdl; 544 545 sdl = (struct sockaddr_dl *)ifma->ifma_addr; 546 if (sdl->sdl_type != IFT_ETHER && 547 sdl->sdl_type != IFT_FDDI) 548 break; 549 } 550 /* FALLTHROUGH */ 551 case AF_INET: 552 #ifdef INET6 553 case AF_INET6: 554 #endif /* INET6 */ 555 fmt = routename(ifma->ifma_addr, numeric_addr); 556 break; 557 } 558 if (fmt) { 559 if (Wflag) 560 xo_emit("{P:/%27s }" 561 "{t:address/%-17s/}", "", fmt); 562 else 563 xo_emit("{P:/%25s }" 564 "{t:address/%-17.17s/}", "", fmt); 565 if (ifma->ifma_addr->sa_family == AF_LINK) { 566 xo_emit(" {:received-packets/%8lu}", 567 IFA_STAT(imcasts)); 568 xo_emit("{P:/%*s}", bflag? 17 : 6, ""); 569 xo_emit(" {:sent-packets/%8lu}", 570 IFA_STAT(omcasts)); 571 } 572 xo_emit("\n"); 573 } 574 xo_close_instance("multicast-address"); 575 ifma = ifma->ifma_next; 576 } 577 xo_close_list("multicast-address"); 578 xo_close_instance("interface"); 579 } 580 xo_close_list("interface"); 581 582 freeifaddrs(ifap); 583 if (aflag) 584 freeifmaddrs(ifmap); 585 } 586 587 struct iftot { 588 u_long ift_ip; /* input packets */ 589 u_long ift_ie; /* input errors */ 590 u_long ift_id; /* input drops */ 591 u_long ift_op; /* output packets */ 592 u_long ift_oe; /* output errors */ 593 u_long ift_od; /* output drops */ 594 u_long ift_co; /* collisions */ 595 u_long ift_ib; /* input bytes */ 596 u_long ift_ob; /* output bytes */ 597 }; 598 599 /* 600 * Obtain stats for interface(s). 601 */ 602 static void 603 fill_iftot(struct iftot *st) 604 { 605 struct ifaddrs *ifap, *ifa; 606 bool found = false; 607 608 if (getifaddrs(&ifap) != 0) 609 xo_err(EX_OSERR, "getifaddrs"); 610 611 bzero(st, sizeof(*st)); 612 613 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 614 if (ifa->ifa_addr->sa_family != AF_LINK) 615 continue; 616 if (interface) { 617 if (strcmp(ifa->ifa_name, interface) == 0) 618 found = true; 619 else 620 continue; 621 } 622 623 st->ift_ip += IFA_STAT(ipackets); 624 st->ift_ie += IFA_STAT(ierrors); 625 st->ift_id += IFA_STAT(iqdrops); 626 st->ift_ib += IFA_STAT(ibytes); 627 st->ift_op += IFA_STAT(opackets); 628 st->ift_oe += IFA_STAT(oerrors); 629 st->ift_od += IFA_STAT(oqdrops); 630 st->ift_ob += IFA_STAT(obytes); 631 st->ift_co += IFA_STAT(collisions); 632 } 633 634 if (interface && found == false) 635 xo_err(EX_DATAERR, "interface %s not found", interface); 636 637 freeifaddrs(ifap); 638 } 639 640 /* 641 * Set a flag to indicate that a signal from the periodic itimer has been 642 * caught. 643 */ 644 static sig_atomic_t signalled; 645 static void 646 catchalarm(int signo __unused) 647 { 648 signalled = true; 649 } 650 651 /* 652 * Print a running summary of interface statistics. 653 * Repeat display every interval seconds, showing statistics 654 * collected over that interval. Assumes that interval is non-zero. 655 * First line printed at top of screen is always cumulative. 656 */ 657 static void 658 sidewaysintpr(void) 659 { 660 struct iftot ift[2], *new, *old; 661 struct itimerval interval_it; 662 int oldmask, line; 663 664 new = &ift[0]; 665 old = &ift[1]; 666 fill_iftot(old); 667 668 (void)signal(SIGALRM, catchalarm); 669 signalled = false; 670 interval_it.it_interval.tv_sec = interval; 671 interval_it.it_interval.tv_usec = 0; 672 interval_it.it_value = interval_it.it_interval; 673 setitimer(ITIMER_REAL, &interval_it, NULL); 674 xo_open_list("interface-statistics"); 675 676 banner: 677 xo_emit("{T:/%17s} {T:/%14s} {T:/%16s}\n", "input", 678 interface != NULL ? interface : "(Total)", "output"); 679 xo_emit("{T:/%10s} {T:/%5s} {T:/%5s} {T:/%10s} {T:/%10s} {T:/%5s} " 680 "{T:/%10s} {T:/%5s}", 681 "packets", "errs", "idrops", "bytes", "packets", "errs", "bytes", 682 "colls"); 683 if (dflag) 684 xo_emit(" {T:/%5.5s}", "drops"); 685 xo_emit("\n"); 686 xo_flush(); 687 line = 0; 688 689 loop: 690 if ((noutputs != 0) && (--noutputs == 0)) { 691 xo_close_list("interface-statistics"); 692 return; 693 } 694 oldmask = sigblock(sigmask(SIGALRM)); 695 while (!signalled) 696 sigpause(0); 697 signalled = false; 698 sigsetmask(oldmask); 699 line++; 700 701 fill_iftot(new); 702 703 xo_open_instance("stats"); 704 show_stat("lu", 10, "received-packets", 705 new->ift_ip - old->ift_ip, 1, 1); 706 show_stat("lu", 5, "received-errors", 707 new->ift_ie - old->ift_ie, 1, 1); 708 show_stat("lu", 5, "dropped-packets", 709 new->ift_id - old->ift_id, 1, 1); 710 show_stat("lu", 10, "received-bytes", 711 new->ift_ib - old->ift_ib, 1, 0); 712 show_stat("lu", 10, "sent-packets", 713 new->ift_op - old->ift_op, 1, 1); 714 show_stat("lu", 5, "send-errors", 715 new->ift_oe - old->ift_oe, 1, 1); 716 show_stat("lu", 10, "sent-bytes", 717 new->ift_ob - old->ift_ob, 1, 0); 718 show_stat("NRSlu", 5, "collisions", 719 new->ift_co - old->ift_co, 1, 1); 720 if (dflag) 721 show_stat("LSlu", 5, "dropped-packets", 722 new->ift_od - old->ift_od, 1, 1); 723 xo_close_instance("stats"); 724 xo_emit("\n"); 725 xo_flush(); 726 727 if (new == &ift[0]) { 728 new = &ift[1]; 729 old = &ift[0]; 730 } else { 731 new = &ift[0]; 732 old = &ift[1]; 733 } 734 735 if (line == 21) 736 goto banner; 737 else 738 goto loop; 739 740 /* NOTREACHED */ 741 } 742