1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1983, 1988, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #if 0 33 #endif 34 35 #include <sys/cdefs.h> 36 #include <sys/param.h> 37 #include <sys/protosw.h> 38 #include <sys/socket.h> 39 #include <sys/socketvar.h> 40 #include <sys/sysctl.h> 41 #include <sys/time.h> 42 43 #include <net/ethernet.h> 44 #include <net/if.h> 45 #include <net/if_dl.h> 46 #include <net/if_types.h> 47 #include <net/route.h> 48 49 #include <netinet/in.h> 50 #include <netgraph/ng_socket.h> 51 52 #include <arpa/inet.h> 53 #include <ifaddrs.h> 54 #include <libutil.h> 55 #include <netdb.h> 56 #include <stdbool.h> 57 #include <stdint.h> 58 #include <stdio.h> 59 #include <stdlib.h> 60 #include <stdbool.h> 61 #include <string.h> 62 #include <sysexits.h> 63 #include <unistd.h> 64 #include <err.h> 65 #include <libxo/xo.h> 66 #include "netstat.h" 67 #include "common.h" 68 #include "nl_defs.h" 69 70 /* 71 * Definitions for showing gateway flags. 72 */ 73 struct bits rt_bits[] = { 74 { RTF_UP, 'U', "up" }, 75 { RTF_GATEWAY, 'G', "gateway" }, 76 { RTF_HOST, 'H', "host" }, 77 { RTF_REJECT, 'R', "reject" }, 78 { RTF_DYNAMIC, 'D', "dynamic" }, 79 { RTF_MODIFIED, 'M', "modified" }, 80 { RTF_DONE, 'd', "done" }, /* Completed -- for routing msgs only */ 81 { RTF_XRESOLVE, 'X', "xresolve" }, 82 { RTF_STATIC, 'S', "static" }, 83 { RTF_PROTO1, '1', "proto1" }, 84 { RTF_PROTO2, '2', "proto2" }, 85 { RTF_PROTO3, '3', "proto3" }, 86 { RTF_BLACKHOLE,'B', "blackhole" }, 87 { RTF_BROADCAST,'b', "broadcast" }, 88 #ifdef RTF_LLINFO 89 { RTF_LLINFO, 'L', "llinfo" }, 90 #endif 91 { 0 , 0, NULL } 92 }; 93 94 #ifdef WITHOUT_NETLINK 95 static struct ifmap_entry *ifmap; 96 static size_t ifmap_size; 97 #endif 98 static struct timespec uptime; 99 100 static const char *netname4(in_addr_t, in_addr_t); 101 #ifdef INET6 102 static const char *netname6(struct sockaddr_in6 *, struct sockaddr_in6 *); 103 #endif 104 #ifdef WITHOUT_NETLINK 105 static void p_rtable_sysctl(int, int); 106 static void p_rtentry_sysctl(const char *name, struct rt_msghdr *); 107 #endif 108 static void domask(char *, size_t, u_long); 109 110 const uint32_t rt_default_weight = RT_DEFAULT_WEIGHT; 111 112 /* 113 * Print routing tables. 114 */ 115 void 116 routepr(int fibnum, int af) 117 { 118 size_t intsize; 119 int numfibs; 120 121 if (live == 0) 122 return; 123 124 intsize = sizeof(int); 125 if (fibnum == -1 && 126 sysctlbyname("net.my_fibnum", &fibnum, &intsize, NULL, 0) == -1) 127 fibnum = 0; 128 if (sysctlbyname("net.fibs", &numfibs, &intsize, NULL, 0) == -1) 129 numfibs = 1; 130 if (fibnum < 0 || fibnum > numfibs - 1) 131 errx(EX_USAGE, "%d: invalid fib", fibnum); 132 /* 133 * Since kernel & userland use different timebase 134 * (time_uptime vs time_second) and we are reading kernel memory 135 * directly we should do rt_expire --> expire_time conversion. 136 */ 137 if (clock_gettime(CLOCK_UPTIME, &uptime) < 0) 138 err(EX_OSERR, "clock_gettime() failed"); 139 140 xo_open_container("route-information"); 141 xo_emit("{T:Routing tables}"); 142 if (fibnum) 143 xo_emit(" ({L:fib}: {:fib/%d})", fibnum); 144 xo_emit("\n"); 145 #ifdef WITHOUT_NETLINK 146 p_rtable_sysctl(fibnum, af); 147 #else 148 p_rtable_netlink(fibnum, af); 149 #endif 150 xo_close_container("route-information"); 151 } 152 153 154 /* 155 * Print address family header before a section of the routing table. 156 */ 157 void 158 pr_family(int af1) 159 { 160 const char *afname; 161 162 switch (af1) { 163 case AF_INET: 164 afname = "Internet"; 165 break; 166 #ifdef INET6 167 case AF_INET6: 168 afname = "Internet6"; 169 break; 170 #endif /*INET6*/ 171 case AF_ISO: 172 afname = "ISO"; 173 break; 174 case AF_CCITT: 175 afname = "X.25"; 176 break; 177 case AF_NETGRAPH: 178 afname = "Netgraph"; 179 break; 180 default: 181 afname = NULL; 182 break; 183 } 184 if (afname) 185 xo_emit("\n{k:address-family/%s}:\n", afname); 186 else 187 xo_emit("\n{L:Protocol Family} {k:address-family/%d}:\n", af1); 188 } 189 190 /* column widths; each followed by one space */ 191 #ifndef INET6 192 #define WID_DST_DEFAULT(af) 18 /* width of destination column */ 193 #define WID_GW_DEFAULT(af) 18 /* width of gateway column */ 194 #define WID_IF_DEFAULT(af) (Wflag ? 10 : 8) /* width of netif column */ 195 #else 196 #define WID_DST_DEFAULT(af) \ 197 ((af) == AF_INET6 ? (numeric_addr ? 33: 18) : 18) 198 #define WID_GW_DEFAULT(af) \ 199 ((af) == AF_INET6 ? (numeric_addr ? 29 : 18) : 18) 200 #define WID_IF_DEFAULT(af) ((af) == AF_INET6 ? 8 : (Wflag ? 10 : 8)) 201 #endif /*INET6*/ 202 203 struct _wid wid; 204 205 /* 206 * Print header for routing table columns. 207 */ 208 void 209 pr_rthdr(int af1 __unused) 210 { 211 212 if (Wflag) { 213 xo_emit("{T:/%-*.*s} {T:/%-*.*s} {T:/%-*.*s} {T:/%*.*s} " 214 "{T:/%*.*s} {T:/%*.*s} {T:/%*s}\n", 215 wid.dst, wid.dst, "Destination", 216 wid.gw, wid.gw, "Gateway", 217 wid.flags, wid.flags, "Flags", 218 wid.mtu, wid.mtu, "Nhop#", 219 wid.mtu, wid.mtu, "Mtu", 220 wid.iface, wid.iface, "Netif", 221 wid.expire, "Expire"); 222 } else { 223 xo_emit("{T:/%-*.*s} {T:/%-*.*s} {T:/%-*.*s} {T:/%*.*s} " 224 "{T:/%*s}\n", 225 wid.dst, wid.dst, "Destination", 226 wid.gw, wid.gw, "Gateway", 227 wid.flags, wid.flags, "Flags", 228 wid.iface, wid.iface, "Netif", 229 wid.expire, "Expire"); 230 } 231 } 232 233 void 234 set_wid(int fam) 235 { 236 wid.dst = WID_DST_DEFAULT(fam); 237 wid.gw = WID_GW_DEFAULT(fam); 238 wid.flags = 6; 239 wid.pksent = 8; 240 wid.mtu = 6; 241 wid.iface = WID_IF_DEFAULT(fam); 242 wid.expire = 6; 243 } 244 245 #ifdef WITHOUT_NETLINK 246 static void 247 p_rtable_sysctl(int fibnum, int af) 248 { 249 size_t needed; 250 int mib[7]; 251 char *buf, *next, *lim; 252 struct rt_msghdr *rtm; 253 struct sockaddr *sa; 254 int fam = AF_UNSPEC; 255 int need_table_close = false; 256 257 ifmap = prepare_ifmap(&ifmap_size); 258 259 mib[0] = CTL_NET; 260 mib[1] = PF_ROUTE; 261 mib[2] = 0; 262 mib[3] = af; 263 mib[4] = NET_RT_DUMP; 264 mib[5] = 0; 265 mib[6] = fibnum; 266 if (sysctl(mib, nitems(mib), NULL, &needed, NULL, 0) < 0) 267 err(EX_OSERR, "sysctl: net.route.0.%d.dump.%d estimate", af, 268 fibnum); 269 if ((buf = malloc(needed)) == NULL) 270 errx(2, "malloc(%lu)", (unsigned long)needed); 271 if (sysctl(mib, nitems(mib), buf, &needed, NULL, 0) < 0) 272 err(1, "sysctl: net.route.0.%d.dump.%d", af, fibnum); 273 lim = buf + needed; 274 xo_open_container("route-table"); 275 xo_open_list("rt-family"); 276 for (next = buf; next < lim; next += rtm->rtm_msglen) { 277 rtm = (struct rt_msghdr *)next; 278 if (rtm->rtm_version != RTM_VERSION) 279 continue; 280 /* 281 * Peek inside header to determine AF 282 */ 283 sa = (struct sockaddr *)(rtm + 1); 284 /* Only print family first time. */ 285 if (fam != sa->sa_family) { 286 if (need_table_close) { 287 xo_close_list("rt-entry"); 288 xo_close_instance("rt-family"); 289 } 290 need_table_close = true; 291 fam = sa->sa_family; 292 set_wid(fam); 293 xo_open_instance("rt-family"); 294 pr_family(fam); 295 xo_open_list("rt-entry"); 296 297 pr_rthdr(fam); 298 } 299 p_rtentry_sysctl("rt-entry", rtm); 300 } 301 if (need_table_close) { 302 xo_close_list("rt-entry"); 303 xo_close_instance("rt-family"); 304 } 305 xo_close_list("rt-family"); 306 xo_close_container("route-table"); 307 free(buf); 308 } 309 310 static void 311 p_rtentry_sysctl(const char *name, struct rt_msghdr *rtm) 312 { 313 struct sockaddr *sa, *addr[RTAX_MAX]; 314 char buffer[128]; 315 char prettyname[128]; 316 int i, protrusion; 317 318 xo_open_instance(name); 319 sa = (struct sockaddr *)(rtm + 1); 320 for (i = 0; i < RTAX_MAX; i++) { 321 if (rtm->rtm_addrs & (1 << i)) { 322 addr[i] = sa; 323 sa = (struct sockaddr *)((char *)sa + SA_SIZE(sa)); 324 } 325 } 326 327 protrusion = p_sockaddr("destination", addr[RTAX_DST], 328 addr[RTAX_NETMASK], 329 rtm->rtm_flags, wid.dst); 330 protrusion = p_sockaddr("gateway", addr[RTAX_GATEWAY], NULL, RTF_HOST, 331 wid.gw - protrusion); 332 snprintf(buffer, sizeof(buffer), "{[:-%d}{:flags/%%s}{]:} ", 333 wid.flags - protrusion); 334 p_flags(rtm->rtm_flags, buffer); 335 /* Output path weight as non-visual property */ 336 xo_emit("{e:weight/%u}", rtm->rtm_rmx.rmx_weight); 337 if (Wflag) { 338 /* XXX: use=0? */ 339 xo_emit("{t:nhop/%*lu} ", wid.mtu, rtm->rtm_rmx.rmx_nhidx); 340 341 if (rtm->rtm_rmx.rmx_mtu != 0) 342 xo_emit("{t:mtu/%*lu} ", wid.mtu, rtm->rtm_rmx.rmx_mtu); 343 else 344 xo_emit("{P:/%*s} ", wid.mtu, ""); 345 } 346 347 memset(prettyname, 0, sizeof(prettyname)); 348 if (rtm->rtm_index < ifmap_size) { 349 strlcpy(prettyname, ifmap[rtm->rtm_index].ifname, 350 sizeof(prettyname)); 351 if (*prettyname == '\0') 352 strlcpy(prettyname, "---", sizeof(prettyname)); 353 } 354 355 if (Wflag) 356 xo_emit("{t:interface-name/%*s}", wid.iface, prettyname); 357 else 358 xo_emit("{t:interface-name/%*.*s}", wid.iface, wid.iface, 359 prettyname); 360 if (rtm->rtm_rmx.rmx_expire) { 361 time_t expire_time; 362 363 if ((expire_time = rtm->rtm_rmx.rmx_expire - uptime.tv_sec) > 0) 364 xo_emit(" {:expire-time/%*d}", wid.expire, 365 (int)expire_time); 366 } 367 368 xo_emit("\n"); 369 xo_close_instance(name); 370 } 371 #endif 372 373 int 374 p_sockaddr(const char *name, struct sockaddr *sa, struct sockaddr *mask, 375 int flags, int width) 376 { 377 const char *cp; 378 char buf[128]; 379 int protrusion; 380 381 cp = fmt_sockaddr(sa, mask, flags); 382 383 if (width < 0) { 384 snprintf(buf, sizeof(buf), "{:%s/%%s} ", name); 385 xo_emit(buf, cp); 386 protrusion = 0; 387 } else { 388 if (Wflag != 0 || numeric_addr) { 389 snprintf(buf, sizeof(buf), "{[:%d}{:%s/%%s}{]:} ", 390 -width, name); 391 xo_emit(buf, cp); 392 protrusion = strlen(cp) - width; 393 if (protrusion < 0) 394 protrusion = 0; 395 } else { 396 snprintf(buf, sizeof(buf), "{[:%d}{:%s/%%-.*s}{]:} ", 397 -width, name); 398 xo_emit(buf, width, cp); 399 protrusion = 0; 400 } 401 } 402 return (protrusion); 403 } 404 405 const char * 406 fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags) 407 { 408 static char buf[128]; 409 const char *cp; 410 411 if (sa == NULL) 412 return ("null"); 413 414 switch(sa->sa_family) { 415 #ifdef INET6 416 case AF_INET6: 417 /* 418 * The sa6->sin6_scope_id must be filled here because 419 * this sockaddr is extracted from kmem(4) directly 420 * and has KAME-specific embedded scope id in 421 * sa6->sin6_addr.s6_addr[2]. 422 */ 423 in6_fillscopeid(satosin6(sa)); 424 /* FALLTHROUGH */ 425 #endif /*INET6*/ 426 case AF_INET: 427 if (flags & RTF_HOST) 428 cp = routename(sa, numeric_addr); 429 else if (mask) 430 cp = netname(sa, mask); 431 else 432 cp = netname(sa, NULL); 433 break; 434 case AF_NETGRAPH: 435 { 436 strlcpy(buf, ((struct sockaddr_ng *)sa)->sg_data, 437 sizeof(buf)); 438 cp = buf; 439 break; 440 } 441 case AF_LINK: 442 { 443 #if 0 444 struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa; 445 446 /* Interface route. */ 447 if (sdl->sdl_nlen) 448 cp = sdl->sdl_data; 449 else 450 #endif 451 cp = routename(sa, 1); 452 break; 453 } 454 default: 455 { 456 u_char *s = (u_char *)sa->sa_data, *slim; 457 char *cq, *cqlim; 458 459 cq = buf; 460 slim = sa->sa_len + (u_char *) sa; 461 cqlim = cq + sizeof(buf) - sizeof(" ffff"); 462 snprintf(cq, sizeof(buf), "(%d)", sa->sa_family); 463 cq += strlen(cq); 464 while (s < slim && cq < cqlim) { 465 snprintf(cq, sizeof(" ff"), " %02x", *s++); 466 cq += strlen(cq); 467 if (s < slim) { 468 snprintf(cq, sizeof("ff"), "%02x", *s++); 469 cq += strlen(cq); 470 } 471 } 472 cp = buf; 473 } 474 } 475 476 return (cp); 477 } 478 479 void 480 p_flags(int f, const char *format) 481 { 482 483 print_flags_generic(f, rt_bits, format, "flags_pretty"); 484 } 485 486 487 char * 488 routename(struct sockaddr *sa, int flags) 489 { 490 static char line[NI_MAXHOST]; 491 int error, f; 492 493 f = (flags) ? NI_NUMERICHOST : 0; 494 error = getnameinfo(sa, sa->sa_len, line, sizeof(line), 495 NULL, 0, f); 496 if (error) { 497 const void *src; 498 switch (sa->sa_family) { 499 #ifdef INET 500 case AF_INET: 501 src = &satosin(sa)->sin_addr; 502 break; 503 #endif /* INET */ 504 #ifdef INET6 505 case AF_INET6: 506 src = &satosin6(sa)->sin6_addr; 507 break; 508 #endif /* INET6 */ 509 default: 510 return(line); 511 } 512 inet_ntop(sa->sa_family, src, line, sizeof(line) - 1); 513 return (line); 514 } 515 trimdomain(line, strlen(line)); 516 517 return (line); 518 } 519 520 #define NSHIFT(m) ( \ 521 (m) == IN_CLASSA_NET ? IN_CLASSA_NSHIFT : \ 522 (m) == IN_CLASSB_NET ? IN_CLASSB_NSHIFT : \ 523 (m) == IN_CLASSC_NET ? IN_CLASSC_NSHIFT : \ 524 0) 525 526 static void 527 domask(char *dst, size_t buflen, u_long mask) 528 { 529 int b, i; 530 531 if (mask == 0) { 532 *dst = '\0'; 533 return; 534 } 535 i = 0; 536 for (b = 0; b < 32; b++) 537 if (mask & (1 << b)) { 538 int bb; 539 540 i = b; 541 for (bb = b+1; bb < 32; bb++) 542 if (!(mask & (1 << bb))) { 543 i = -1; /* noncontig */ 544 break; 545 } 546 break; 547 } 548 if (i == -1) 549 snprintf(dst, buflen, "&0x%lx", mask); 550 else 551 snprintf(dst, buflen, "/%d", 32-i); 552 } 553 554 /* 555 * Return the name of the network whose address is given. 556 */ 557 const char * 558 netname(struct sockaddr *sa, struct sockaddr *mask) 559 { 560 switch (sa->sa_family) { 561 case AF_INET: 562 if (mask != NULL) 563 return (netname4(satosin(sa)->sin_addr.s_addr, 564 satosin(mask)->sin_addr.s_addr)); 565 else 566 return (netname4(satosin(sa)->sin_addr.s_addr, 567 INADDR_ANY)); 568 break; 569 #ifdef INET6 570 case AF_INET6: 571 return (netname6(satosin6(sa), satosin6(mask))); 572 #endif /* INET6 */ 573 default: 574 return (NULL); 575 } 576 } 577 578 static const char * 579 netname4(in_addr_t in, in_addr_t mask) 580 { 581 char *cp = 0; 582 static char line[MAXHOSTNAMELEN + sizeof("&0xffffffff")]; 583 char nline[INET_ADDRSTRLEN]; 584 struct netent *np = 0; 585 in_addr_t i; 586 587 if (in == INADDR_ANY && mask == 0) { 588 strlcpy(line, "default", sizeof(line)); 589 return (line); 590 } 591 592 /* It is ok to supply host address. */ 593 in &= mask; 594 595 i = ntohl(in); 596 if (!numeric_addr && i) { 597 np = getnetbyaddr(i >> NSHIFT(ntohl(mask)), AF_INET); 598 if (np != NULL) { 599 cp = np->n_name; 600 trimdomain(cp, strlen(cp)); 601 } 602 } 603 if (cp != NULL) 604 strlcpy(line, cp, sizeof(line)); 605 else { 606 inet_ntop(AF_INET, &in, nline, sizeof(nline)); 607 strlcpy(line, nline, sizeof(line)); 608 domask(line + strlen(line), sizeof(line) - strlen(line), ntohl(mask)); 609 } 610 611 return (line); 612 } 613 614 #undef NSHIFT 615 616 #ifdef INET6 617 void 618 in6_fillscopeid(struct sockaddr_in6 *sa6) 619 { 620 #if defined(__KAME__) 621 /* 622 * XXX: This is a special workaround for KAME kernels. 623 * sin6_scope_id field of SA should be set in the future. 624 */ 625 if (IN6_IS_ADDR_LINKLOCAL(&sa6->sin6_addr) || 626 IN6_IS_ADDR_MC_NODELOCAL(&sa6->sin6_addr) || 627 IN6_IS_ADDR_MC_LINKLOCAL(&sa6->sin6_addr)) { 628 if (sa6->sin6_scope_id == 0) 629 sa6->sin6_scope_id = 630 ntohs(*(u_int16_t *)&sa6->sin6_addr.s6_addr[2]); 631 sa6->sin6_addr.s6_addr[2] = sa6->sin6_addr.s6_addr[3] = 0; 632 } 633 #endif 634 } 635 636 /* Mask to length table. To check an invalid value, (length + 1) is used. */ 637 static const u_char masktolen[256] = { 638 [0xff] = 8 + 1, 639 [0xfe] = 7 + 1, 640 [0xfc] = 6 + 1, 641 [0xf8] = 5 + 1, 642 [0xf0] = 4 + 1, 643 [0xe0] = 3 + 1, 644 [0xc0] = 2 + 1, 645 [0x80] = 1 + 1, 646 [0x00] = 0 + 1, 647 }; 648 649 static const char * 650 netname6(struct sockaddr_in6 *sa6, struct sockaddr_in6 *mask) 651 { 652 static char line[NI_MAXHOST + sizeof("/xxx") - 1]; 653 struct sockaddr_in6 addr; 654 char nline[NI_MAXHOST]; 655 char maskbuf[sizeof("/xxx")]; 656 u_char *p, *lim; 657 u_char masklen; 658 int i; 659 bool illegal = false; 660 661 if (mask) { 662 p = (u_char *)&mask->sin6_addr; 663 for (masklen = 0, lim = p + 16; p < lim; p++) { 664 if (masktolen[*p] > 0) { 665 /* -1 is required. */ 666 masklen += (masktolen[*p] - 1); 667 } else 668 illegal = true; 669 } 670 if (illegal) 671 xo_error("illegal prefixlen\n"); 672 673 memcpy(&addr, sa6, sizeof(addr)); 674 for (i = 0; i < 16; ++i) 675 addr.sin6_addr.s6_addr[i] &= 676 mask->sin6_addr.s6_addr[i]; 677 sa6 = &addr; 678 } 679 else 680 masklen = 128; 681 682 if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr)) 683 return("default"); 684 685 getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, nline, sizeof(nline), 686 NULL, 0, NI_NUMERICHOST); 687 if (numeric_addr) 688 strlcpy(line, nline, sizeof(line)); 689 else 690 getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, 691 sizeof(line), NULL, 0, 0); 692 if (numeric_addr || strcmp(line, nline) == 0) { 693 snprintf(maskbuf, sizeof(maskbuf), "/%d", masklen); 694 strlcat(line, maskbuf, sizeof(line)); 695 } 696 697 return (line); 698 } 699 #endif /*INET6*/ 700 701 /* 702 * Print routing statistics 703 */ 704 void 705 rt_stats(void) 706 { 707 struct rtstat rtstat; 708 u_long rtsaddr; 709 710 if ((rtsaddr = nl[N_RTSTAT].n_value) == 0) { 711 xo_emit("{W:rtstat: symbol not in namelist}\n"); 712 return; 713 } 714 kread_counters(rtsaddr, (char *)&rtstat, sizeof (rtstat)); 715 xo_emit("{T:routing}:\n"); 716 717 #define p(f, m) if (rtstat.f || sflag <= 1) \ 718 xo_emit(m, rtstat.f, plural(rtstat.f)) 719 720 p(rts_badredirect, "\t{:bad-redirects/%ju} " 721 "{N:/bad routing redirect%s}\n"); 722 p(rts_dynamic, "\t{:dynamically-created/%ju} " 723 "{N:/dynamically created route%s}\n"); 724 p(rts_newgateway, "\t{:new-gateways/%ju} " 725 "{N:/new gateway%s due to redirects}\n"); 726 p(rts_unreach, "\t{:unreachable-destination/%ju} " 727 "{N:/destination%s found unreachable}\n"); 728 p(rts_wildcard, "\t{:wildcard-uses/%ju} " 729 "{N:/use%s of a wildcard route}\n"); 730 #undef p 731 } 732