1 /* 2 * Copyright (c) 1983, 1988, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)route.c 8.6 (Berkeley) 4/28/95 30 * $FreeBSD: src/usr.bin/netstat/route.c,v 1.41.2.14 2002/07/17 02:22:22 kbyanc Exp $ 31 */ 32 33 #include <sys/kinfo.h> 34 #include <sys/param.h> 35 #include <sys/socket.h> 36 #include <sys/time.h> 37 38 #include <net/ethernet.h> 39 #include <net/if.h> 40 #include <net/if_var.h> 41 #include <net/if_dl.h> 42 #include <net/if_types.h> 43 #include <net/route.h> 44 45 #include <netinet/in.h> 46 #include <netipx/ipx.h> 47 #include <netgraph/socket/ng_socket.h> 48 49 #include <netproto/mpls/mpls.h> 50 51 #include <sys/sysctl.h> 52 53 #include <arpa/inet.h> 54 #include <libutil.h> 55 #include <netdb.h> 56 #include <stdio.h> 57 #include <stdlib.h> 58 #include <string.h> 59 #include <unistd.h> 60 #include <err.h> 61 #include <time.h> 62 #include <kinfo.h> 63 #include "netstat.h" 64 65 #define kget(p, d) (kread((u_long)(p), (char *)&(d), sizeof (d))) 66 67 68 /* alignment constraint for routing socket */ 69 #define ROUNDUP(a) \ 70 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long)) 71 #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len)) 72 73 /* 74 * Definitions for showing gateway flags. 75 */ 76 struct bits { 77 u_long b_mask; 78 char b_val; 79 } bits[] = { 80 { RTF_UP, 'U' }, 81 { RTF_GATEWAY, 'G' }, 82 { RTF_HOST, 'H' }, 83 { RTF_REJECT, 'R' }, 84 { RTF_DYNAMIC, 'D' }, 85 { RTF_MODIFIED, 'M' }, 86 { RTF_DONE, 'd' }, /* Completed -- for routing messages only */ 87 { RTF_CLONING, 'C' }, 88 { RTF_XRESOLVE, 'X' }, 89 { RTF_LLINFO, 'L' }, 90 { RTF_STATIC, 'S' }, 91 { RTF_PROTO1, '1' }, 92 { RTF_PROTO2, '2' }, 93 { RTF_WASCLONED,'W' }, 94 { RTF_PRCLONING,'c' }, 95 { RTF_PROTO3, '3' }, 96 { RTF_BLACKHOLE,'B' }, 97 { RTF_BROADCAST,'b' }, 98 { RTF_MPLSOPS, 'm' }, 99 { 0, 0 } 100 }; 101 102 typedef union { 103 long dummy; /* Helps align structure. */ 104 struct sockaddr u_sa; 105 u_short u_data[128]; 106 } sa_u; 107 108 static sa_u pt_u; 109 110 int do_rtent = 0; 111 struct rtentry rtentry; 112 struct radix_node rnode; 113 struct radix_mask rmask; 114 struct radix_node_head *rt_tables[AF_MAX+1]; 115 116 int NewTree = 0; 117 118 static struct sockaddr *kgetsa (struct sockaddr *); 119 static void size_cols (int ef, struct radix_node *rn); 120 static void size_cols_tree (struct radix_node *rn); 121 static void size_cols_rtentry (struct rtentry *rt); 122 static void p_tree (struct radix_node *); 123 static void p_rtnode (void); 124 static void ntreestuff (void); 125 static void np_rtentry (struct rt_msghdr *); 126 static void p_sockaddr (struct sockaddr *, struct sockaddr *, int, int); 127 static const char *fmt_sockaddr (struct sockaddr *sa, struct sockaddr *mask, 128 int flags); 129 static void p_flags (int, const char *); 130 static const char *fmt_flags(int f); 131 static void p_rtentry (struct rtentry *); 132 static u_long forgemask (u_long); 133 static void domask (char *, u_long, u_long); 134 static const char *labelops(struct rtentry *); 135 136 /* 137 * Print routing tables. 138 */ 139 void 140 routepr(u_long rtree) 141 { 142 struct radix_node_head *rnh, head; 143 int i; 144 145 printf("Routing tables\n"); 146 147 if (Aflag == 0 && NewTree) { 148 ntreestuff(); 149 } else { 150 if (rtree == 0) { 151 printf("rt_tables: symbol not in namelist\n"); 152 return; 153 } 154 if (cpuflag >= 0) { 155 /* 156 * Severe hack. 157 */ 158 rtree += cpuflag * (AF_MAX + 1) * sizeof(void *); 159 } 160 if (kget(rtree, rt_tables) != 0) 161 return; 162 for (i = 0; i <= AF_MAX; i++) { 163 if ((rnh = rt_tables[i]) == NULL) 164 continue; 165 if (kget(rnh, head) != 0) 166 continue; 167 if (i == AF_UNSPEC) { 168 if (Aflag && af == 0) { 169 printf("Netmasks:\n"); 170 p_tree(head.rnh_treetop); 171 } 172 } else if (af == AF_UNSPEC || af == i) { 173 size_cols(i, head.rnh_treetop); 174 pr_family(i); 175 do_rtent = 1; 176 pr_rthdr(i); 177 p_tree(head.rnh_treetop); 178 } 179 } 180 } 181 } 182 183 /* 184 * Print address family header before a section of the routing table. 185 */ 186 void 187 pr_family(int af1) 188 { 189 const char *afname; 190 191 switch (af1) { 192 case AF_INET: 193 afname = "Internet"; 194 break; 195 #ifdef INET6 196 case AF_INET6: 197 afname = "Internet6"; 198 break; 199 #endif /*INET6*/ 200 case AF_IPX: 201 afname = "IPX"; 202 break; 203 case AF_ISO: 204 afname = "ISO"; 205 break; 206 case AF_CCITT: 207 afname = "X.25"; 208 break; 209 case AF_NETGRAPH: 210 afname = "Netgraph"; 211 break; 212 case AF_MPLS: 213 afname = "MPLS"; 214 break; 215 default: 216 afname = NULL; 217 break; 218 } 219 if (afname) 220 printf("\n%s:\n", afname); 221 else 222 printf("\nProtocol Family %d:\n", af1); 223 } 224 225 /* column widths; each followed by one space */ 226 #ifndef INET6 227 #define WID_DST_DEFAULT(af) 18 /* width of destination column */ 228 #define WID_GW_DEFAULT(af) 18 /* width of gateway column */ 229 #define WID_IF_DEFAULT(af) (Wflag ? 8 : 6) /* width of netif column */ 230 #else 231 #define WID_DST_DEFAULT(af) \ 232 ((af) == AF_INET6 ? (numeric_addr ? 33: 18) : 18) 233 #define WID_GW_DEFAULT(af) \ 234 ((af) == AF_INET6 ? (numeric_addr ? 29 : 18) : 18) 235 #define WID_IF_DEFAULT(af) ((af) == AF_INET6 ? 8 : (Wflag ? 8 :6)) 236 #endif /*INET6*/ 237 238 static int wid_dst; 239 static int wid_gw; 240 static int wid_flags; 241 static int wid_refs; 242 static int wid_use; 243 static int wid_mtu; 244 static int wid_if; 245 static int wid_expire; 246 static int wid_mplslops; 247 static int wid_msl; 248 static int wid_iwmax; 249 static int wid_iw; 250 251 static void 252 size_cols(int ef, struct radix_node *rn) 253 { 254 wid_dst = WID_DST_DEFAULT(ef); 255 wid_gw = WID_GW_DEFAULT(ef); 256 wid_flags = 6; 257 wid_refs = 6; 258 wid_use = 8; 259 wid_mtu = 6; 260 wid_if = WID_IF_DEFAULT(ef); 261 wid_expire = 6; 262 wid_mplslops = 7; 263 wid_msl = 7; 264 wid_iwmax = 5; 265 wid_iw = 2; 266 267 if (Wflag) 268 size_cols_tree(rn); 269 } 270 271 static void 272 size_cols_tree(struct radix_node *rn) 273 { 274 again: 275 if (kget(rn, rnode) != 0) 276 return; 277 if (!(rnode.rn_flags & RNF_ACTIVE)) 278 return; 279 if (rnode.rn_bit < 0) { 280 if ((rnode.rn_flags & RNF_ROOT) == 0) { 281 if (kget(rn, rtentry) != 0) 282 return; 283 size_cols_rtentry(&rtentry); 284 } 285 if ((rn = rnode.rn_dupedkey)) 286 goto again; 287 } else { 288 rn = rnode.rn_right; 289 size_cols_tree(rnode.rn_left); 290 size_cols_tree(rn); 291 } 292 } 293 294 static void 295 size_cols_rtentry(struct rtentry *rt) 296 { 297 static struct ifnet ifnet, *lastif; 298 struct rtentry parent; 299 static char buffer[100]; 300 const char *bp; 301 struct sockaddr *sa; 302 sa_u addr, mask; 303 int len; 304 305 /* 306 * Don't print protocol-cloned routes unless -a. 307 */ 308 if (rt->rt_flags & RTF_WASCLONED && !aflag) { 309 if (kget(rt->rt_parent, parent) != 0) 310 return; 311 if (parent.rt_flags & RTF_PRCLONING) 312 return; 313 } 314 315 bzero(&addr, sizeof(addr)); 316 if ((sa = kgetsa(rt_key(rt)))) 317 bcopy(sa, &addr, sa->sa_len); 318 bzero(&mask, sizeof(mask)); 319 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 320 bcopy(sa, &mask, sa->sa_len); 321 bp = fmt_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags); 322 len = strlen(bp); 323 wid_dst = MAX(len, wid_dst); 324 325 bp = fmt_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST); 326 len = strlen(bp); 327 wid_gw = MAX(len, wid_gw); 328 329 bp = fmt_flags(rt->rt_flags); 330 len = strlen(bp); 331 wid_flags = MAX(len, wid_flags); 332 333 if (addr.u_sa.sa_family == AF_INET || Wflag) { 334 len = snprintf(buffer, sizeof(buffer), "%ld", rt->rt_refcnt); 335 wid_refs = MAX(len, wid_refs); 336 len = snprintf(buffer, sizeof(buffer), "%lu", rt->rt_use); 337 wid_use = MAX(len, wid_use); 338 if (Wflag && rt->rt_rmx.rmx_mtu != 0) { 339 len = snprintf(buffer, sizeof(buffer), 340 "%lu", rt->rt_rmx.rmx_mtu); 341 wid_mtu = MAX(len, wid_mtu); 342 } 343 } 344 if (rt->rt_ifp) { 345 if (rt->rt_ifp != lastif) { 346 if (kget(rt->rt_ifp, ifnet) == 0) 347 len = strlen(ifnet.if_xname); 348 else 349 len = strlen("---"); 350 lastif = rt->rt_ifp; 351 wid_if = MAX(len, wid_if); 352 } 353 if (rt->rt_rmx.rmx_expire) { 354 struct timespec sp; 355 int expire_time; 356 357 clock_gettime(CLOCK_MONOTONIC, &sp); 358 359 expire_time = (int)(rt->rt_rmx.rmx_expire - sp.tv_sec); 360 361 if (expire_time > 0) { 362 snprintf(buffer, sizeof(buffer), "%d", 363 (int)expire_time); 364 wid_expire = MAX(len, wid_expire); 365 } 366 } 367 } 368 if (Wflag) { 369 if (rt->rt_shim[0] != NULL) { 370 len = strlen(labelops(rt)); 371 wid_mplslops = MAX(len, wid_mplslops); 372 } 373 374 if (rt->rt_rmx.rmx_msl) { 375 len = snprintf(buffer, sizeof(buffer), 376 "%lu", rt->rt_rmx.rmx_msl); 377 wid_msl = MAX(len, wid_msl); 378 } 379 if (rt->rt_rmx.rmx_iwmaxsegs) { 380 len = snprintf(buffer, sizeof(buffer), 381 "%lu", rt->rt_rmx.rmx_iwmaxsegs); 382 wid_iwmax = MAX(len, wid_iwmax); 383 } 384 if (rt->rt_rmx.rmx_iwcapsegs) { 385 len = snprintf(buffer, sizeof(buffer), 386 "%lu", rt->rt_rmx.rmx_iwcapsegs); 387 wid_iw = MAX(len, wid_iw); 388 } 389 } 390 } 391 392 393 /* 394 * Print header for routing table columns. 395 */ 396 void 397 pr_rthdr(int af1) 398 { 399 400 if (Aflag) 401 printf("%-8.8s ","Address"); 402 if (af1 == AF_INET || Wflag) { 403 if (Wflag) { 404 printf("%-*.*s %-*.*s %-*.*s %*.*s %*.*s %*.*s %*.*s " 405 "%*s %-*s%*s %*s %*s\n", 406 wid_dst, wid_dst, "Destination", 407 wid_gw, wid_gw, "Gateway", 408 wid_flags, wid_flags, "Flags", 409 wid_refs, wid_refs, "Refs", 410 wid_use, wid_use, "Use", 411 wid_mtu, wid_mtu, "Mtu", 412 wid_if, wid_if, "Netif", 413 wid_expire, "Expire", 414 wid_mplslops, "Labelops", 415 wid_msl, "Msl", 416 wid_iwmax, "IWmax", 417 wid_iw, "IW"); 418 } else { 419 printf("%-*.*s %-*.*s %-*.*s %*.*s %*.*s %*.*s %*s\n", 420 wid_dst, wid_dst, "Destination", 421 wid_gw, wid_gw, "Gateway", 422 wid_flags, wid_flags, "Flags", 423 wid_refs, wid_refs, "Refs", 424 wid_use, wid_use, "Use", 425 wid_if, wid_if, "Netif", 426 wid_expire, "Expire"); 427 } 428 } else { 429 printf("%-*.*s %-*.*s %-*.*s %*.*s %*s\n", 430 wid_dst, wid_dst, "Destination", 431 wid_gw, wid_gw, "Gateway", 432 wid_flags, wid_flags, "Flags", 433 wid_if, wid_if, "Netif", 434 wid_expire, "Expire"); 435 } 436 } 437 438 static struct sockaddr * 439 kgetsa(struct sockaddr *dst) 440 { 441 442 if (kget(dst, pt_u.u_sa) != 0) 443 return (NULL); 444 if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa)) 445 kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len); 446 return (&pt_u.u_sa); 447 } 448 449 static void 450 p_tree(struct radix_node *rn) 451 { 452 453 again: 454 if (kget(rn, rnode) != 0) 455 return; 456 if (!(rnode.rn_flags & RNF_ACTIVE)) 457 return; 458 if (rnode.rn_bit < 0) { 459 if (Aflag) 460 printf("%-8.8lx ", (u_long)rn); 461 if (rnode.rn_flags & RNF_ROOT) { 462 if (Aflag) 463 printf("(root node)%s", 464 rnode.rn_dupedkey ? " =>\n" : "\n"); 465 } else if (do_rtent) { 466 if (kget(rn, rtentry) == 0) { 467 p_rtentry(&rtentry); 468 if (Aflag) 469 p_rtnode(); 470 } 471 } else { 472 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key), 473 NULL, 0, 44); 474 putchar('\n'); 475 } 476 if ((rn = rnode.rn_dupedkey)) 477 goto again; 478 } else { 479 if (Aflag && do_rtent) { 480 printf("%-8.8lx ", (u_long)rn); 481 p_rtnode(); 482 } 483 rn = rnode.rn_right; 484 p_tree(rnode.rn_left); 485 p_tree(rn); 486 } 487 } 488 489 char nbuf[20]; 490 491 static void 492 p_rtnode(void) 493 { 494 struct radix_mask *rm = rnode.rn_mklist; 495 496 if (rnode.rn_bit < 0) { 497 if (rnode.rn_mask) { 498 printf("\t mask "); 499 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask), 500 NULL, 0, -1); 501 } else if (rm == NULL) 502 return; 503 } else { 504 sprintf(nbuf, "(%d)", rnode.rn_bit); 505 printf("%6.6s %8.8lx : %8.8lx", nbuf, (u_long)rnode.rn_left, (u_long)rnode.rn_right); 506 } 507 while (rm) { 508 if (kget(rm, rmask) != 0) 509 break; 510 sprintf(nbuf, " %d refs, ", rmask.rm_refs); 511 printf(" mk = %8.8lx {(%d),%s", 512 (u_long)rm, -1 - rmask.rm_bit, rmask.rm_refs ? nbuf : " "); 513 if (rmask.rm_flags & RNF_NORMAL) { 514 struct radix_node rnode_aux; 515 printf(" <normal>, "); 516 if (kget(rmask.rm_leaf, rnode_aux) == 0) 517 p_sockaddr(kgetsa((struct sockaddr *)rnode_aux.rn_mask), 518 NULL, 0, -1); 519 else 520 p_sockaddr(NULL, NULL, 0, -1); 521 } else 522 p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 523 NULL, 0, -1); 524 putchar('}'); 525 if ((rm = rmask.rm_next)) 526 printf(" ->"); 527 } 528 putchar('\n'); 529 } 530 531 static void 532 ntreestuff(void) 533 { 534 size_t needed; 535 int mib[7]; 536 int miblen; 537 char *buf, *next, *lim; 538 struct rt_msghdr *rtm; 539 540 mib[0] = CTL_NET; 541 mib[1] = PF_ROUTE; 542 mib[2] = 0; 543 mib[3] = 0; 544 mib[4] = NET_RT_DUMP; 545 mib[5] = 0; 546 if (cpuflag >= 0) { 547 mib[6] = cpuflag; 548 miblen = 7; 549 } else { 550 miblen = 6; 551 } 552 if (sysctl(mib, miblen, NULL, &needed, NULL, 0) < 0) { 553 err(1, "sysctl: net.route.0.0.dump estimate"); 554 } 555 556 if ((buf = malloc(needed)) == NULL) { 557 err(2, "malloc(%lu)", (unsigned long)needed); 558 } 559 if (sysctl(mib, miblen, buf, &needed, NULL, 0) < 0) { 560 err(1, "sysctl: net.route.0.0.dump"); 561 } 562 lim = buf + needed; 563 for (next = buf; next < lim; next += rtm->rtm_msglen) { 564 rtm = (struct rt_msghdr *)next; 565 np_rtentry(rtm); 566 } 567 } 568 569 static void 570 np_rtentry(struct rt_msghdr *rtm) 571 { 572 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 573 #ifdef notdef 574 static int masks_done, banner_printed; 575 #endif 576 static int old_af; 577 int af1 = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST; 578 579 #ifdef notdef 580 /* for the moment, netmasks are skipped over */ 581 if (!banner_printed) { 582 printf("Netmasks:\n"); 583 banner_printed = 1; 584 } 585 if (masks_done == 0) { 586 if (rtm->rtm_addrs != RTA_DST ) { 587 masks_done = 1; 588 af1 = sa->sa_family; 589 } 590 } else 591 #endif 592 af1 = sa->sa_family; 593 if (af1 != old_af) { 594 pr_family(af1); 595 old_af = af1; 596 } 597 if (rtm->rtm_addrs == RTA_DST) 598 p_sockaddr(sa, NULL, 0, 36); 599 else { 600 p_sockaddr(sa, NULL, rtm->rtm_flags, 16); 601 sa = (struct sockaddr *)(ROUNDUP(sa->sa_len) + (char *)sa); 602 p_sockaddr(sa, NULL, 0, 18); 603 } 604 p_flags(rtm->rtm_flags & interesting, "%-6.6s "); 605 putchar('\n'); 606 } 607 608 static void 609 p_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags, int width) 610 { 611 const char *cp; 612 613 cp = fmt_sockaddr(sa, mask, flags); 614 615 if (width < 0 ) 616 printf("%s ", cp); 617 else { 618 if (numeric_addr) 619 printf("%-*s ", width, cp); 620 else 621 printf("%-*.*s ", width, width, cp); 622 } 623 } 624 625 static const char * 626 fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags) 627 { 628 static char workbuf[128]; 629 const char *cp = workbuf; 630 631 if (sa == NULL) 632 return ("null"); 633 634 switch(sa->sa_family) { 635 case AF_INET: 636 { 637 struct sockaddr_in *sin = (struct sockaddr_in *)sa; 638 639 if ((sin->sin_addr.s_addr == INADDR_ANY) && 640 mask && 641 ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr) 642 ==0L) 643 cp = "default" ; 644 else if (flags & RTF_HOST) 645 cp = routename(sin->sin_addr.s_addr); 646 else if (mask) 647 cp = netname(sin->sin_addr.s_addr, 648 ntohl(((struct sockaddr_in *)mask) 649 ->sin_addr.s_addr)); 650 else 651 cp = netname(sin->sin_addr.s_addr, 0L); 652 break; 653 } 654 655 #ifdef INET6 656 case AF_INET6: 657 { 658 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa; 659 struct in6_addr *in6 = &sa6->sin6_addr; 660 661 /* 662 * XXX: This is a special workaround for KAME kernels. 663 * sin6_scope_id field of SA should be set in the future. 664 */ 665 if (IN6_IS_ADDR_LINKLOCAL(in6) || 666 IN6_IS_ADDR_MC_LINKLOCAL(in6)) { 667 /* XXX: override is ok? */ 668 sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]); 669 *(u_short *)&in6->s6_addr[2] = 0; 670 } 671 672 if (flags & RTF_HOST) 673 cp = routename6(sa6); 674 else if (mask) 675 cp = netname6(sa6, 676 &((struct sockaddr_in6 *)mask)->sin6_addr); 677 else { 678 cp = netname6(sa6, NULL); 679 } 680 break; 681 } 682 #endif /*INET6*/ 683 684 case AF_IPX: 685 { 686 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 687 if (ipx_nullnet(satoipx_addr(work))) 688 cp = "default"; 689 else 690 cp = ipx_print(sa); 691 break; 692 } 693 case AF_NETGRAPH: 694 { 695 printf("%s", ((struct sockaddr_ng *)sa)->sg_data); 696 break; 697 } 698 case AF_LINK: 699 { 700 struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa; 701 702 if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && 703 sdl->sdl_slen == 0) 704 (void) sprintf(workbuf, "link#%d", sdl->sdl_index); 705 else 706 switch (sdl->sdl_type) { 707 708 case IFT_ETHER: 709 case IFT_L2VLAN: 710 case IFT_CARP: 711 if (sdl->sdl_alen == ETHER_ADDR_LEN) { 712 cp = ether_ntoa((struct ether_addr *) 713 (sdl->sdl_data + sdl->sdl_nlen)); 714 break; 715 } 716 /* FALLTHROUGH */ 717 default: 718 cp = link_ntoa(sdl); 719 break; 720 } 721 break; 722 } 723 724 case AF_MPLS: 725 { 726 struct sockaddr_mpls *smpls = (struct sockaddr_mpls *)sa; 727 728 (void) sprintf(workbuf, "%d", ntohl(smpls->smpls_label)); 729 break; 730 } 731 732 default: 733 { 734 u_char *s = (u_char *)sa->sa_data, *slim; 735 char *cq, *cqlim; 736 737 cq = workbuf; 738 slim = sa->sa_len + (u_char *) sa; 739 cqlim = cq + sizeof(workbuf) - 6; 740 cq += sprintf(cq, "(%d)", sa->sa_family); 741 while (s < slim && cq < cqlim) { 742 cq += sprintf(cq, " %02x", *s++); 743 if (s < slim) 744 cq += sprintf(cq, "%02x", *s++); 745 } 746 cp = workbuf; 747 } 748 } 749 750 return (cp); 751 } 752 753 static void 754 p_flags(int f, const char *format) 755 { 756 printf(format, fmt_flags(f)); 757 } 758 759 static const char * 760 fmt_flags(int f) 761 { 762 static char name[33]; 763 char *flags; 764 struct bits *p = bits; 765 766 for (flags = name; p->b_mask; p++) 767 if (p->b_mask & f) 768 *flags++ = p->b_val; 769 *flags = '\0'; 770 return (name); 771 } 772 773 static void 774 p_rtentry(struct rtentry *rt) 775 { 776 static struct ifnet ifnet, *lastif; 777 struct rtentry parent; 778 static char buffer[128]; 779 static char prettyname[128]; 780 struct sockaddr *sa; 781 sa_u addr, mask; 782 783 /* 784 * Don't print protocol-cloned routes unless -a. 785 */ 786 if (rt->rt_flags & RTF_WASCLONED && !aflag) { 787 if (kget(rt->rt_parent, parent) != 0) 788 return; 789 if (parent.rt_flags & RTF_PRCLONING) 790 return; 791 } 792 793 bzero(&addr, sizeof(addr)); 794 if ((sa = kgetsa(rt_key(rt)))) 795 bcopy(sa, &addr, sa->sa_len); 796 bzero(&mask, sizeof(mask)); 797 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 798 bcopy(sa, &mask, sa->sa_len); 799 p_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags, wid_dst); 800 p_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST, wid_gw); 801 snprintf(buffer, sizeof(buffer), "%%-%d.%ds ", wid_flags, wid_flags); 802 p_flags(rt->rt_flags, buffer); 803 if (addr.u_sa.sa_family == AF_INET || Wflag) { 804 printf("%*ld %*lu ", wid_refs, rt->rt_refcnt, 805 wid_use, rt->rt_use); 806 if (Wflag) { 807 if (rt->rt_rmx.rmx_mtu != 0) 808 printf("%*lu ", wid_mtu, rt->rt_rmx.rmx_mtu); 809 else 810 printf("%*s ", wid_mtu, ""); 811 } 812 } 813 if (rt->rt_ifp) { 814 if (rt->rt_ifp != lastif) { 815 if (kget(rt->rt_ifp, ifnet) == 0) 816 strlcpy(prettyname, ifnet.if_xname, 817 sizeof(prettyname)); 818 else 819 strlcpy(prettyname, "---", sizeof(prettyname)); 820 lastif = rt->rt_ifp; 821 } 822 printf("%*.*s", wid_if, wid_if, prettyname); 823 if (rt->rt_rmx.rmx_expire) { 824 struct timespec sp; 825 int expire_time; 826 827 clock_gettime(CLOCK_MONOTONIC, &sp); 828 829 expire_time = (int)(rt->rt_rmx.rmx_expire - sp.tv_sec); 830 if (expire_time > 0) 831 printf(" %*d", wid_expire, (int)expire_time); 832 else 833 printf("%*s ", wid_expire, ""); 834 } else { 835 printf("%*s ", wid_expire, ""); 836 } 837 if (rt->rt_nodes[0].rn_dupedkey) 838 printf(" =>"); 839 } 840 if (Wflag) { 841 if (rt->rt_shim[0] != NULL) 842 printf(" %-*s", wid_mplslops, labelops(rt)); 843 else 844 printf(" %-*s", wid_mplslops, ""); 845 if (rt->rt_rmx.rmx_msl != 0) 846 printf(" %*lu", wid_msl, rt->rt_rmx.rmx_msl); 847 else 848 printf("%*s ", wid_msl, ""); 849 if (rt->rt_rmx.rmx_iwmaxsegs != 0) 850 printf(" %*lu", wid_iwmax, rt->rt_rmx.rmx_iwmaxsegs); 851 else 852 printf("%*s ", wid_iwmax, ""); 853 if (rt->rt_rmx.rmx_iwcapsegs != 0) 854 printf(" %*lu", wid_iw, rt->rt_rmx.rmx_iwcapsegs); 855 else 856 printf("%*s ", wid_iw, ""); 857 } 858 putchar('\n'); 859 } 860 861 char * 862 routename(u_long in) 863 { 864 char *cp; 865 static char line[MAXHOSTNAMELEN]; 866 struct hostent *hp; 867 868 cp = NULL; 869 if (!numeric_addr) { 870 hp = gethostbyaddr(&in, sizeof (struct in_addr), AF_INET); 871 if (hp) { 872 cp = hp->h_name; 873 trimdomain(cp, strlen(cp)); 874 } 875 } 876 if (cp) { 877 strncpy(line, cp, sizeof(line) - 1); 878 line[sizeof(line) - 1] = '\0'; 879 } else { 880 #define C(x) ((x) & 0xff) 881 in = ntohl(in); 882 sprintf(line, "%lu.%lu.%lu.%lu", 883 C(in >> 24), C(in >> 16), C(in >> 8), C(in)); 884 } 885 return (line); 886 } 887 888 static u_long 889 forgemask(u_long a) 890 { 891 u_long m; 892 893 if (IN_CLASSA(a)) 894 m = IN_CLASSA_NET; 895 else if (IN_CLASSB(a)) 896 m = IN_CLASSB_NET; 897 else 898 m = IN_CLASSC_NET; 899 return (m); 900 } 901 902 static void 903 domask(char *dst, u_long addr, u_long mask) 904 { 905 int b, i; 906 907 if (!mask || (forgemask(addr) == mask)) { 908 *dst = '\0'; 909 return; 910 } 911 i = 0; 912 for (b = 0; b < 32; b++) 913 if (mask & (1 << b)) { 914 int bb; 915 916 i = b; 917 for (bb = b+1; bb < 32; bb++) 918 if (!(mask & (1 << bb))) { 919 i = -1; /* noncontig */ 920 break; 921 } 922 break; 923 } 924 if (i == -1) 925 sprintf(dst, "&0x%lx", mask); 926 else 927 sprintf(dst, "/%d", 32-i); 928 } 929 930 /* 931 * Return the name of the network whose address is given. 932 * The address is assumed to be that of a net or subnet, not a host. 933 */ 934 char * 935 netname(u_long in, u_long mask) 936 { 937 char *cp = NULL; 938 static char line[MAXHOSTNAMELEN]; 939 struct netent *np = NULL; 940 u_long dmask; 941 u_long i; 942 943 #define NSHIFT(m) ( \ 944 (m) == IN_CLASSA_NET ? IN_CLASSA_NSHIFT : \ 945 (m) == IN_CLASSB_NET ? IN_CLASSB_NSHIFT : \ 946 (m) == IN_CLASSC_NET ? IN_CLASSC_NSHIFT : \ 947 0) 948 949 i = ntohl(in); 950 dmask = forgemask(i); 951 if (!numeric_addr && i) { 952 np = getnetbyaddr(i >> NSHIFT(mask), AF_INET); 953 if (np == NULL && mask == 0) 954 np = getnetbyaddr(i >> NSHIFT(dmask), AF_INET); 955 if (np != NULL) { 956 cp = np->n_name; 957 trimdomain(cp, strlen(cp)); 958 } 959 } 960 #undef NSHIFT 961 if (cp != NULL) { 962 strncpy(line, cp, sizeof(line) - 1); 963 line[sizeof(line) - 1] = '\0'; 964 } else { 965 if (mask <= IN_CLASSA_NET && 966 (i & IN_CLASSA_HOST) == 0) { 967 sprintf(line, "%lu", C(i >> 24)); 968 } else if (mask <= IN_CLASSB_NET && 969 (i & IN_CLASSB_HOST) == 0) { 970 sprintf(line, "%lu.%lu", 971 C(i >> 24), C(i >> 16)); 972 } else if (mask <= IN_CLASSC_NET && 973 (i & IN_CLASSC_HOST) == 0) { 974 sprintf(line, "%lu.%lu.%lu", 975 C(i >> 24), C(i >> 16), C(i >> 8)); 976 } else { 977 sprintf(line, "%lu.%lu.%lu.%lu", 978 C(i >> 24), C(i >> 16), C(i >> 8), C(i)); 979 } 980 } 981 domask(line + strlen(line), i, mask); 982 return (line); 983 } 984 985 #ifdef INET6 986 const char * 987 netname6(struct sockaddr_in6 *sa6, struct in6_addr *mask) 988 { 989 static char line[MAXHOSTNAMELEN]; 990 u_char *p = (u_char *)mask; 991 u_char *lim; 992 int masklen, illegal = 0, flag = NI_WITHSCOPEID; 993 994 if (mask) { 995 for (masklen = 0, lim = p + 16; p < lim; p++) { 996 switch (*p) { 997 case 0xff: 998 masklen += 8; 999 break; 1000 case 0xfe: 1001 masklen += 7; 1002 break; 1003 case 0xfc: 1004 masklen += 6; 1005 break; 1006 case 0xf8: 1007 masklen += 5; 1008 break; 1009 case 0xf0: 1010 masklen += 4; 1011 break; 1012 case 0xe0: 1013 masklen += 3; 1014 break; 1015 case 0xc0: 1016 masklen += 2; 1017 break; 1018 case 0x80: 1019 masklen += 1; 1020 break; 1021 case 0x00: 1022 break; 1023 default: 1024 illegal ++; 1025 break; 1026 } 1027 } 1028 if (illegal) 1029 fprintf(stderr, "illegal prefixlen\n"); 1030 } 1031 else 1032 masklen = 128; 1033 1034 if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr)) 1035 return("default"); 1036 1037 if (numeric_addr) 1038 flag |= NI_NUMERICHOST; 1039 getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line), 1040 NULL, 0, flag); 1041 1042 if (numeric_addr) 1043 sprintf(&line[strlen(line)], "/%d", masklen); 1044 1045 return line; 1046 } 1047 1048 char * 1049 routename6(struct sockaddr_in6 *sa6) 1050 { 1051 static char line[MAXHOSTNAMELEN]; 1052 int flag = NI_WITHSCOPEID; 1053 /* use local variable for safety */ 1054 struct sockaddr_in6 sa6_local; 1055 1056 sa6_local.sin6_family = AF_INET6; 1057 sa6_local.sin6_len = sizeof(sa6_local); 1058 sa6_local.sin6_addr = sa6->sin6_addr; 1059 sa6_local.sin6_scope_id = sa6->sin6_scope_id; 1060 1061 if (numeric_addr) 1062 flag |= NI_NUMERICHOST; 1063 1064 getnameinfo((struct sockaddr *)&sa6_local, sa6_local.sin6_len, 1065 line, sizeof(line), NULL, 0, flag); 1066 1067 return line; 1068 } 1069 #endif /*INET6*/ 1070 1071 /* 1072 * Print routing statistics 1073 */ 1074 void 1075 rt_stats(void) 1076 { 1077 struct rtstatistics rts; 1078 int error = 0; 1079 1080 error = kinfo_get_net_rtstatistics(&rts); 1081 if (error) { 1082 printf("routing: could not retrieve statistics\n"); 1083 return; 1084 } 1085 printf("routing:\n"); 1086 1087 #define p(f, m) if (rts.f || sflag <= 1) \ 1088 printf(m, rts.f, plural(rts.f)) 1089 1090 p(rts_badredirect, "\t%lu bad routing redirect%s\n"); 1091 p(rts_dynamic, "\t%lu dynamically created route%s\n"); 1092 p(rts_newgateway, "\t%lu new gateway%s due to redirects\n"); 1093 p(rts_unreach, "\t%lu destination%s found unreachable\n"); 1094 p(rts_wildcard, "\t%lu use%s of a wildcard route\n"); 1095 #undef p 1096 } 1097 1098 char * 1099 ipx_print(struct sockaddr *sa) 1100 { 1101 u_short port; 1102 struct servent *sp = NULL; 1103 const char *net = "", *host = ""; 1104 char *p; 1105 u_char *q; 1106 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 1107 static char mybuf[50]; 1108 char cport[10], chost[15], cnet[15]; 1109 1110 port = ntohs(work.x_port); 1111 1112 if (ipx_nullnet(work) && ipx_nullhost(work)) { 1113 1114 if (port) { 1115 if (sp) 1116 sprintf(mybuf, "*.%s", sp->s_name); 1117 else 1118 sprintf(mybuf, "*.%x", port); 1119 } else 1120 sprintf(mybuf, "*.*"); 1121 1122 return (mybuf); 1123 } 1124 1125 if (ipx_wildnet(work)) 1126 net = "any"; 1127 else if (ipx_nullnet(work)) 1128 net = "*"; 1129 else { 1130 q = work.x_net.c_net; 1131 sprintf(cnet, "%02x%02x%02x%02x", 1132 q[0], q[1], q[2], q[3]); 1133 for (p = cnet; *p == '0' && p < cnet + 8; p++) 1134 continue; 1135 net = p; 1136 } 1137 1138 if (ipx_wildhost(work)) 1139 host = "any"; 1140 else if (ipx_nullhost(work)) 1141 host = "*"; 1142 else { 1143 q = work.x_host.c_host; 1144 sprintf(chost, "%02x%02x%02x%02x%02x%02x", 1145 q[0], q[1], q[2], q[3], q[4], q[5]); 1146 for (p = chost; *p == '0' && p < chost + 12; p++) 1147 continue; 1148 host = p; 1149 } 1150 1151 if (port) { 1152 if (strcmp(host, "*") == 0) 1153 host = ""; 1154 if (sp) 1155 snprintf(cport, sizeof(cport), 1156 "%s%s", *host ? "." : "", sp->s_name); 1157 else 1158 snprintf(cport, sizeof(cport), 1159 "%s%x", *host ? "." : "", port); 1160 } else 1161 *cport = 0; 1162 1163 snprintf(mybuf, sizeof(mybuf), "%s.%s%s", net, host, cport); 1164 return(mybuf); 1165 } 1166 1167 char * 1168 ipx_phost(struct sockaddr *sa) 1169 { 1170 struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa; 1171 struct sockaddr_ipx work; 1172 static union ipx_net ipx_zeronet; 1173 char *p; 1174 1175 work = *sipx; 1176 work.sipx_addr.x_port = 0; 1177 work.sipx_addr.x_net = ipx_zeronet; 1178 p = ipx_print((struct sockaddr *)&work); 1179 if (strncmp("*.", p, 2) == 0) p += 2; 1180 1181 return(p); 1182 } 1183 1184 void 1185 upHex(char *p0) 1186 { 1187 char *p = p0; 1188 1189 for (; *p; p++) 1190 switch (*p) { 1191 1192 case 'a': 1193 case 'b': 1194 case 'c': 1195 case 'd': 1196 case 'e': 1197 case 'f': 1198 *p += ('A' - 'a'); 1199 break; 1200 } 1201 } 1202 1203 static const char * 1204 labelops(struct rtentry *rt) 1205 { 1206 const char *lops[] = { "push", "pop", "swap", "pop all" }; 1207 static char buffer[100]; 1208 char *cp = buffer; 1209 struct sockaddr_mpls *smpls; 1210 int i; 1211 1212 for (i=0; i<MPLS_MAXLOPS; ++i) { 1213 1214 if (rt->rt_shim[i] == NULL) 1215 break; 1216 if (i>0) { 1217 cp += snprintf(cp, 1218 sizeof(buffer) - (cp - buffer), 1219 ", "); 1220 } 1221 smpls = (struct sockaddr_mpls *)kgetsa(rt->rt_shim[i]); 1222 if (smpls->smpls_op != MPLSLOP_POP && 1223 smpls->smpls_op != MPLSLOP_POPALL){ 1224 cp += snprintf(cp, 1225 sizeof(buffer) - (cp - buffer), 1226 "%s %d", 1227 lops[smpls->smpls_op - 1], 1228 ntohl(smpls->smpls_label)); 1229 } else { 1230 cp += snprintf(cp, 1231 sizeof(buffer) - (cp - buffer), 1232 "%s", 1233 lops[smpls->smpls_op - 1]); 1234 } 1235 } 1236 1237 return (buffer); 1238 } 1239