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 time_t expire_time; 355 356 if ((expire_time = 357 rt->rt_rmx.rmx_expire - time(NULL)) > 0) { 358 snprintf(buffer, sizeof(buffer), "%d", 359 (int)expire_time); 360 wid_expire = MAX(len, wid_expire); 361 } 362 } 363 } 364 if (Wflag) { 365 if (rt->rt_shim[0] != NULL) { 366 len = strlen(labelops(rt)); 367 wid_mplslops = MAX(len, wid_mplslops); 368 } 369 370 if (rt->rt_rmx.rmx_msl) { 371 len = snprintf(buffer, sizeof(buffer), 372 "%lu", rt->rt_rmx.rmx_msl); 373 wid_msl = MAX(len, wid_msl); 374 } 375 if (rt->rt_rmx.rmx_iwmaxsegs) { 376 len = snprintf(buffer, sizeof(buffer), 377 "%lu", rt->rt_rmx.rmx_iwmaxsegs); 378 wid_iwmax = MAX(len, wid_iwmax); 379 } 380 if (rt->rt_rmx.rmx_iwcapsegs) { 381 len = snprintf(buffer, sizeof(buffer), 382 "%lu", rt->rt_rmx.rmx_iwcapsegs); 383 wid_iw = MAX(len, wid_iw); 384 } 385 } 386 } 387 388 389 /* 390 * Print header for routing table columns. 391 */ 392 void 393 pr_rthdr(int af1) 394 { 395 396 if (Aflag) 397 printf("%-8.8s ","Address"); 398 if (af1 == AF_INET || Wflag) { 399 if (Wflag) { 400 printf("%-*.*s %-*.*s %-*.*s %*.*s %*.*s %*.*s %*.*s " 401 "%*s %-*s%*s %*s %*s\n", 402 wid_dst, wid_dst, "Destination", 403 wid_gw, wid_gw, "Gateway", 404 wid_flags, wid_flags, "Flags", 405 wid_refs, wid_refs, "Refs", 406 wid_use, wid_use, "Use", 407 wid_mtu, wid_mtu, "Mtu", 408 wid_if, wid_if, "Netif", 409 wid_expire, "Expire", 410 wid_mplslops, "Labelops", 411 wid_msl, "Msl", 412 wid_iwmax, "IWmax", 413 wid_iw, "IW"); 414 } else { 415 printf("%-*.*s %-*.*s %-*.*s %*.*s %*.*s %*.*s %*s\n", 416 wid_dst, wid_dst, "Destination", 417 wid_gw, wid_gw, "Gateway", 418 wid_flags, wid_flags, "Flags", 419 wid_refs, wid_refs, "Refs", 420 wid_use, wid_use, "Use", 421 wid_if, wid_if, "Netif", 422 wid_expire, "Expire"); 423 } 424 } else { 425 printf("%-*.*s %-*.*s %-*.*s %*.*s %*s\n", 426 wid_dst, wid_dst, "Destination", 427 wid_gw, wid_gw, "Gateway", 428 wid_flags, wid_flags, "Flags", 429 wid_if, wid_if, "Netif", 430 wid_expire, "Expire"); 431 } 432 } 433 434 static struct sockaddr * 435 kgetsa(struct sockaddr *dst) 436 { 437 438 if (kget(dst, pt_u.u_sa) != 0) 439 return (NULL); 440 if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa)) 441 kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len); 442 return (&pt_u.u_sa); 443 } 444 445 static void 446 p_tree(struct radix_node *rn) 447 { 448 449 again: 450 if (kget(rn, rnode) != 0) 451 return; 452 if (!(rnode.rn_flags & RNF_ACTIVE)) 453 return; 454 if (rnode.rn_bit < 0) { 455 if (Aflag) 456 printf("%-8.8lx ", (u_long)rn); 457 if (rnode.rn_flags & RNF_ROOT) { 458 if (Aflag) 459 printf("(root node)%s", 460 rnode.rn_dupedkey ? " =>\n" : "\n"); 461 } else if (do_rtent) { 462 if (kget(rn, rtentry) == 0) { 463 p_rtentry(&rtentry); 464 if (Aflag) 465 p_rtnode(); 466 } 467 } else { 468 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key), 469 NULL, 0, 44); 470 putchar('\n'); 471 } 472 if ((rn = rnode.rn_dupedkey)) 473 goto again; 474 } else { 475 if (Aflag && do_rtent) { 476 printf("%-8.8lx ", (u_long)rn); 477 p_rtnode(); 478 } 479 rn = rnode.rn_right; 480 p_tree(rnode.rn_left); 481 p_tree(rn); 482 } 483 } 484 485 char nbuf[20]; 486 487 static void 488 p_rtnode(void) 489 { 490 struct radix_mask *rm = rnode.rn_mklist; 491 492 if (rnode.rn_bit < 0) { 493 if (rnode.rn_mask) { 494 printf("\t mask "); 495 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask), 496 NULL, 0, -1); 497 } else if (rm == NULL) 498 return; 499 } else { 500 sprintf(nbuf, "(%d)", rnode.rn_bit); 501 printf("%6.6s %8.8lx : %8.8lx", nbuf, (u_long)rnode.rn_left, (u_long)rnode.rn_right); 502 } 503 while (rm) { 504 if (kget(rm, rmask) != 0) 505 break; 506 sprintf(nbuf, " %d refs, ", rmask.rm_refs); 507 printf(" mk = %8.8lx {(%d),%s", 508 (u_long)rm, -1 - rmask.rm_bit, rmask.rm_refs ? nbuf : " "); 509 if (rmask.rm_flags & RNF_NORMAL) { 510 struct radix_node rnode_aux; 511 printf(" <normal>, "); 512 if (kget(rmask.rm_leaf, rnode_aux) == 0) 513 p_sockaddr(kgetsa((struct sockaddr *)rnode_aux.rn_mask), 514 NULL, 0, -1); 515 else 516 p_sockaddr(NULL, NULL, 0, -1); 517 } else 518 p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 519 NULL, 0, -1); 520 putchar('}'); 521 if ((rm = rmask.rm_next)) 522 printf(" ->"); 523 } 524 putchar('\n'); 525 } 526 527 static void 528 ntreestuff(void) 529 { 530 size_t needed; 531 int mib[7]; 532 int miblen; 533 char *buf, *next, *lim; 534 struct rt_msghdr *rtm; 535 536 mib[0] = CTL_NET; 537 mib[1] = PF_ROUTE; 538 mib[2] = 0; 539 mib[3] = 0; 540 mib[4] = NET_RT_DUMP; 541 mib[5] = 0; 542 if (cpuflag >= 0) { 543 mib[6] = cpuflag; 544 miblen = 7; 545 } else { 546 miblen = 6; 547 } 548 if (sysctl(mib, miblen, NULL, &needed, NULL, 0) < 0) { 549 err(1, "sysctl: net.route.0.0.dump estimate"); 550 } 551 552 if ((buf = malloc(needed)) == NULL) { 553 err(2, "malloc(%lu)", (unsigned long)needed); 554 } 555 if (sysctl(mib, miblen, buf, &needed, NULL, 0) < 0) { 556 err(1, "sysctl: net.route.0.0.dump"); 557 } 558 lim = buf + needed; 559 for (next = buf; next < lim; next += rtm->rtm_msglen) { 560 rtm = (struct rt_msghdr *)next; 561 np_rtentry(rtm); 562 } 563 } 564 565 static void 566 np_rtentry(struct rt_msghdr *rtm) 567 { 568 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 569 #ifdef notdef 570 static int masks_done, banner_printed; 571 #endif 572 static int old_af; 573 int af1 = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST; 574 575 #ifdef notdef 576 /* for the moment, netmasks are skipped over */ 577 if (!banner_printed) { 578 printf("Netmasks:\n"); 579 banner_printed = 1; 580 } 581 if (masks_done == 0) { 582 if (rtm->rtm_addrs != RTA_DST ) { 583 masks_done = 1; 584 af1 = sa->sa_family; 585 } 586 } else 587 #endif 588 af1 = sa->sa_family; 589 if (af1 != old_af) { 590 pr_family(af1); 591 old_af = af1; 592 } 593 if (rtm->rtm_addrs == RTA_DST) 594 p_sockaddr(sa, NULL, 0, 36); 595 else { 596 p_sockaddr(sa, NULL, rtm->rtm_flags, 16); 597 sa = (struct sockaddr *)(ROUNDUP(sa->sa_len) + (char *)sa); 598 p_sockaddr(sa, NULL, 0, 18); 599 } 600 p_flags(rtm->rtm_flags & interesting, "%-6.6s "); 601 putchar('\n'); 602 } 603 604 static void 605 p_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags, int width) 606 { 607 const char *cp; 608 609 cp = fmt_sockaddr(sa, mask, flags); 610 611 if (width < 0 ) 612 printf("%s ", cp); 613 else { 614 if (numeric_addr) 615 printf("%-*s ", width, cp); 616 else 617 printf("%-*.*s ", width, width, cp); 618 } 619 } 620 621 static const char * 622 fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags) 623 { 624 static char workbuf[128]; 625 const char *cp = workbuf; 626 627 if (sa == NULL) 628 return ("null"); 629 630 switch(sa->sa_family) { 631 case AF_INET: 632 { 633 struct sockaddr_in *sin = (struct sockaddr_in *)sa; 634 635 if ((sin->sin_addr.s_addr == INADDR_ANY) && 636 mask && 637 ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr) 638 ==0L) 639 cp = "default" ; 640 else if (flags & RTF_HOST) 641 cp = routename(sin->sin_addr.s_addr); 642 else if (mask) 643 cp = netname(sin->sin_addr.s_addr, 644 ntohl(((struct sockaddr_in *)mask) 645 ->sin_addr.s_addr)); 646 else 647 cp = netname(sin->sin_addr.s_addr, 0L); 648 break; 649 } 650 651 #ifdef INET6 652 case AF_INET6: 653 { 654 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa; 655 struct in6_addr *in6 = &sa6->sin6_addr; 656 657 /* 658 * XXX: This is a special workaround for KAME kernels. 659 * sin6_scope_id field of SA should be set in the future. 660 */ 661 if (IN6_IS_ADDR_LINKLOCAL(in6) || 662 IN6_IS_ADDR_MC_LINKLOCAL(in6)) { 663 /* XXX: override is ok? */ 664 sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]); 665 *(u_short *)&in6->s6_addr[2] = 0; 666 } 667 668 if (flags & RTF_HOST) 669 cp = routename6(sa6); 670 else if (mask) 671 cp = netname6(sa6, 672 &((struct sockaddr_in6 *)mask)->sin6_addr); 673 else { 674 cp = netname6(sa6, NULL); 675 } 676 break; 677 } 678 #endif /*INET6*/ 679 680 case AF_IPX: 681 { 682 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 683 if (ipx_nullnet(satoipx_addr(work))) 684 cp = "default"; 685 else 686 cp = ipx_print(sa); 687 break; 688 } 689 case AF_NETGRAPH: 690 { 691 printf("%s", ((struct sockaddr_ng *)sa)->sg_data); 692 break; 693 } 694 case AF_LINK: 695 { 696 struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa; 697 698 if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && 699 sdl->sdl_slen == 0) 700 (void) sprintf(workbuf, "link#%d", sdl->sdl_index); 701 else 702 switch (sdl->sdl_type) { 703 704 case IFT_ETHER: 705 case IFT_L2VLAN: 706 case IFT_CARP: 707 if (sdl->sdl_alen == ETHER_ADDR_LEN) { 708 cp = ether_ntoa((struct ether_addr *) 709 (sdl->sdl_data + sdl->sdl_nlen)); 710 break; 711 } 712 /* FALLTHROUGH */ 713 default: 714 cp = link_ntoa(sdl); 715 break; 716 } 717 break; 718 } 719 720 case AF_MPLS: 721 { 722 struct sockaddr_mpls *smpls = (struct sockaddr_mpls *)sa; 723 724 (void) sprintf(workbuf, "%d", ntohl(smpls->smpls_label)); 725 break; 726 } 727 728 default: 729 { 730 u_char *s = (u_char *)sa->sa_data, *slim; 731 char *cq, *cqlim; 732 733 cq = workbuf; 734 slim = sa->sa_len + (u_char *) sa; 735 cqlim = cq + sizeof(workbuf) - 6; 736 cq += sprintf(cq, "(%d)", sa->sa_family); 737 while (s < slim && cq < cqlim) { 738 cq += sprintf(cq, " %02x", *s++); 739 if (s < slim) 740 cq += sprintf(cq, "%02x", *s++); 741 } 742 cp = workbuf; 743 } 744 } 745 746 return (cp); 747 } 748 749 static void 750 p_flags(int f, const char *format) 751 { 752 printf(format, fmt_flags(f)); 753 } 754 755 static const char * 756 fmt_flags(int f) 757 { 758 static char name[33]; 759 char *flags; 760 struct bits *p = bits; 761 762 for (flags = name; p->b_mask; p++) 763 if (p->b_mask & f) 764 *flags++ = p->b_val; 765 *flags = '\0'; 766 return (name); 767 } 768 769 static void 770 p_rtentry(struct rtentry *rt) 771 { 772 static struct ifnet ifnet, *lastif; 773 struct rtentry parent; 774 static char buffer[128]; 775 static char prettyname[128]; 776 struct sockaddr *sa; 777 sa_u addr, mask; 778 779 /* 780 * Don't print protocol-cloned routes unless -a. 781 */ 782 if (rt->rt_flags & RTF_WASCLONED && !aflag) { 783 if (kget(rt->rt_parent, parent) != 0) 784 return; 785 if (parent.rt_flags & RTF_PRCLONING) 786 return; 787 } 788 789 bzero(&addr, sizeof(addr)); 790 if ((sa = kgetsa(rt_key(rt)))) 791 bcopy(sa, &addr, sa->sa_len); 792 bzero(&mask, sizeof(mask)); 793 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 794 bcopy(sa, &mask, sa->sa_len); 795 p_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags, wid_dst); 796 p_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST, wid_gw); 797 snprintf(buffer, sizeof(buffer), "%%-%d.%ds ", wid_flags, wid_flags); 798 p_flags(rt->rt_flags, buffer); 799 if (addr.u_sa.sa_family == AF_INET || Wflag) { 800 printf("%*ld %*lu ", wid_refs, rt->rt_refcnt, 801 wid_use, rt->rt_use); 802 if (Wflag) { 803 if (rt->rt_rmx.rmx_mtu != 0) 804 printf("%*lu ", wid_mtu, rt->rt_rmx.rmx_mtu); 805 else 806 printf("%*s ", wid_mtu, ""); 807 } 808 } 809 if (rt->rt_ifp) { 810 if (rt->rt_ifp != lastif) { 811 if (kget(rt->rt_ifp, ifnet) == 0) 812 strlcpy(prettyname, ifnet.if_xname, 813 sizeof(prettyname)); 814 else 815 strlcpy(prettyname, "---", sizeof(prettyname)); 816 lastif = rt->rt_ifp; 817 } 818 printf("%*.*s", wid_if, wid_if, prettyname); 819 if (rt->rt_rmx.rmx_expire) { 820 time_t expire_time; 821 822 if ((expire_time = 823 rt->rt_rmx.rmx_expire - time(NULL)) > 0) 824 printf(" %*d", wid_expire, (int)expire_time); 825 else 826 printf("%*s ", wid_expire, ""); 827 } else { 828 printf("%*s ", wid_expire, ""); 829 } 830 if (rt->rt_nodes[0].rn_dupedkey) 831 printf(" =>"); 832 } 833 if (Wflag) { 834 if (rt->rt_shim[0] != NULL) 835 printf(" %-*s", wid_mplslops, labelops(rt)); 836 else 837 printf(" %-*s", wid_mplslops, ""); 838 if (rt->rt_rmx.rmx_msl != 0) 839 printf(" %*lu", wid_msl, rt->rt_rmx.rmx_msl); 840 else 841 printf("%*s ", wid_msl, ""); 842 if (rt->rt_rmx.rmx_iwmaxsegs != 0) 843 printf(" %*lu", wid_iwmax, rt->rt_rmx.rmx_iwmaxsegs); 844 else 845 printf("%*s ", wid_iwmax, ""); 846 if (rt->rt_rmx.rmx_iwcapsegs != 0) 847 printf(" %*lu", wid_iw, rt->rt_rmx.rmx_iwcapsegs); 848 else 849 printf("%*s ", wid_iw, ""); 850 } 851 putchar('\n'); 852 } 853 854 char * 855 routename(u_long in) 856 { 857 char *cp; 858 static char line[MAXHOSTNAMELEN]; 859 struct hostent *hp; 860 861 cp = NULL; 862 if (!numeric_addr) { 863 hp = gethostbyaddr(&in, sizeof (struct in_addr), AF_INET); 864 if (hp) { 865 cp = hp->h_name; 866 trimdomain(cp, strlen(cp)); 867 } 868 } 869 if (cp) { 870 strncpy(line, cp, sizeof(line) - 1); 871 line[sizeof(line) - 1] = '\0'; 872 } else { 873 #define C(x) ((x) & 0xff) 874 in = ntohl(in); 875 sprintf(line, "%lu.%lu.%lu.%lu", 876 C(in >> 24), C(in >> 16), C(in >> 8), C(in)); 877 } 878 return (line); 879 } 880 881 static u_long 882 forgemask(u_long a) 883 { 884 u_long m; 885 886 if (IN_CLASSA(a)) 887 m = IN_CLASSA_NET; 888 else if (IN_CLASSB(a)) 889 m = IN_CLASSB_NET; 890 else 891 m = IN_CLASSC_NET; 892 return (m); 893 } 894 895 static void 896 domask(char *dst, u_long addr, u_long mask) 897 { 898 int b, i; 899 900 if (!mask || (forgemask(addr) == mask)) { 901 *dst = '\0'; 902 return; 903 } 904 i = 0; 905 for (b = 0; b < 32; b++) 906 if (mask & (1 << b)) { 907 int bb; 908 909 i = b; 910 for (bb = b+1; bb < 32; bb++) 911 if (!(mask & (1 << bb))) { 912 i = -1; /* noncontig */ 913 break; 914 } 915 break; 916 } 917 if (i == -1) 918 sprintf(dst, "&0x%lx", mask); 919 else 920 sprintf(dst, "/%d", 32-i); 921 } 922 923 /* 924 * Return the name of the network whose address is given. 925 * The address is assumed to be that of a net or subnet, not a host. 926 */ 927 char * 928 netname(u_long in, u_long mask) 929 { 930 char *cp = NULL; 931 static char line[MAXHOSTNAMELEN]; 932 struct netent *np = NULL; 933 u_long dmask; 934 u_long i; 935 936 #define NSHIFT(m) ( \ 937 (m) == IN_CLASSA_NET ? IN_CLASSA_NSHIFT : \ 938 (m) == IN_CLASSB_NET ? IN_CLASSB_NSHIFT : \ 939 (m) == IN_CLASSC_NET ? IN_CLASSC_NSHIFT : \ 940 0) 941 942 i = ntohl(in); 943 dmask = forgemask(i); 944 if (!numeric_addr && i) { 945 np = getnetbyaddr(i >> NSHIFT(mask), AF_INET); 946 if (np == NULL && mask == 0) 947 np = getnetbyaddr(i >> NSHIFT(dmask), AF_INET); 948 if (np != NULL) { 949 cp = np->n_name; 950 trimdomain(cp, strlen(cp)); 951 } 952 } 953 #undef NSHIFT 954 if (cp != NULL) { 955 strncpy(line, cp, sizeof(line) - 1); 956 line[sizeof(line) - 1] = '\0'; 957 } else { 958 if (mask <= IN_CLASSA_NET && 959 (i & IN_CLASSA_HOST) == 0) { 960 sprintf(line, "%lu", C(i >> 24)); 961 } else if (mask <= IN_CLASSB_NET && 962 (i & IN_CLASSB_HOST) == 0) { 963 sprintf(line, "%lu.%lu", 964 C(i >> 24), C(i >> 16)); 965 } else if (mask <= IN_CLASSC_NET && 966 (i & IN_CLASSC_HOST) == 0) { 967 sprintf(line, "%lu.%lu.%lu", 968 C(i >> 24), C(i >> 16), C(i >> 8)); 969 } else { 970 sprintf(line, "%lu.%lu.%lu.%lu", 971 C(i >> 24), C(i >> 16), C(i >> 8), C(i)); 972 } 973 } 974 domask(line + strlen(line), i, mask); 975 return (line); 976 } 977 978 #ifdef INET6 979 const char * 980 netname6(struct sockaddr_in6 *sa6, struct in6_addr *mask) 981 { 982 static char line[MAXHOSTNAMELEN]; 983 u_char *p = (u_char *)mask; 984 u_char *lim; 985 int masklen, illegal = 0, flag = NI_WITHSCOPEID; 986 987 if (mask) { 988 for (masklen = 0, lim = p + 16; p < lim; p++) { 989 switch (*p) { 990 case 0xff: 991 masklen += 8; 992 break; 993 case 0xfe: 994 masklen += 7; 995 break; 996 case 0xfc: 997 masklen += 6; 998 break; 999 case 0xf8: 1000 masklen += 5; 1001 break; 1002 case 0xf0: 1003 masklen += 4; 1004 break; 1005 case 0xe0: 1006 masklen += 3; 1007 break; 1008 case 0xc0: 1009 masklen += 2; 1010 break; 1011 case 0x80: 1012 masklen += 1; 1013 break; 1014 case 0x00: 1015 break; 1016 default: 1017 illegal ++; 1018 break; 1019 } 1020 } 1021 if (illegal) 1022 fprintf(stderr, "illegal prefixlen\n"); 1023 } 1024 else 1025 masklen = 128; 1026 1027 if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr)) 1028 return("default"); 1029 1030 if (numeric_addr) 1031 flag |= NI_NUMERICHOST; 1032 getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line), 1033 NULL, 0, flag); 1034 1035 if (numeric_addr) 1036 sprintf(&line[strlen(line)], "/%d", masklen); 1037 1038 return line; 1039 } 1040 1041 char * 1042 routename6(struct sockaddr_in6 *sa6) 1043 { 1044 static char line[MAXHOSTNAMELEN]; 1045 int flag = NI_WITHSCOPEID; 1046 /* use local variable for safety */ 1047 struct sockaddr_in6 sa6_local; 1048 1049 sa6_local.sin6_family = AF_INET6; 1050 sa6_local.sin6_len = sizeof(sa6_local); 1051 sa6_local.sin6_addr = sa6->sin6_addr; 1052 sa6_local.sin6_scope_id = sa6->sin6_scope_id; 1053 1054 if (numeric_addr) 1055 flag |= NI_NUMERICHOST; 1056 1057 getnameinfo((struct sockaddr *)&sa6_local, sa6_local.sin6_len, 1058 line, sizeof(line), NULL, 0, flag); 1059 1060 return line; 1061 } 1062 #endif /*INET6*/ 1063 1064 /* 1065 * Print routing statistics 1066 */ 1067 void 1068 rt_stats(void) 1069 { 1070 struct rtstatistics rts; 1071 int error = 0; 1072 1073 error = kinfo_get_net_rtstatistics(&rts); 1074 if (error) { 1075 printf("routing: could not retrieve statistics\n"); 1076 return; 1077 } 1078 printf("routing:\n"); 1079 1080 #define p(f, m) if (rts.f || sflag <= 1) \ 1081 printf(m, rts.f, plural(rts.f)) 1082 1083 p(rts_badredirect, "\t%lu bad routing redirect%s\n"); 1084 p(rts_dynamic, "\t%lu dynamically created route%s\n"); 1085 p(rts_newgateway, "\t%lu new gateway%s due to redirects\n"); 1086 p(rts_unreach, "\t%lu destination%s found unreachable\n"); 1087 p(rts_wildcard, "\t%lu use%s of a wildcard route\n"); 1088 #undef p 1089 } 1090 1091 char * 1092 ipx_print(struct sockaddr *sa) 1093 { 1094 u_short port; 1095 struct servent *sp = NULL; 1096 const char *net = "", *host = ""; 1097 char *p; 1098 u_char *q; 1099 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 1100 static char mybuf[50]; 1101 char cport[10], chost[15], cnet[15]; 1102 1103 port = ntohs(work.x_port); 1104 1105 if (ipx_nullnet(work) && ipx_nullhost(work)) { 1106 1107 if (port) { 1108 if (sp) 1109 sprintf(mybuf, "*.%s", sp->s_name); 1110 else 1111 sprintf(mybuf, "*.%x", port); 1112 } else 1113 sprintf(mybuf, "*.*"); 1114 1115 return (mybuf); 1116 } 1117 1118 if (ipx_wildnet(work)) 1119 net = "any"; 1120 else if (ipx_nullnet(work)) 1121 net = "*"; 1122 else { 1123 q = work.x_net.c_net; 1124 sprintf(cnet, "%02x%02x%02x%02x", 1125 q[0], q[1], q[2], q[3]); 1126 for (p = cnet; *p == '0' && p < cnet + 8; p++) 1127 continue; 1128 net = p; 1129 } 1130 1131 if (ipx_wildhost(work)) 1132 host = "any"; 1133 else if (ipx_nullhost(work)) 1134 host = "*"; 1135 else { 1136 q = work.x_host.c_host; 1137 sprintf(chost, "%02x%02x%02x%02x%02x%02x", 1138 q[0], q[1], q[2], q[3], q[4], q[5]); 1139 for (p = chost; *p == '0' && p < chost + 12; p++) 1140 continue; 1141 host = p; 1142 } 1143 1144 if (port) { 1145 if (strcmp(host, "*") == 0) 1146 host = ""; 1147 if (sp) 1148 snprintf(cport, sizeof(cport), 1149 "%s%s", *host ? "." : "", sp->s_name); 1150 else 1151 snprintf(cport, sizeof(cport), 1152 "%s%x", *host ? "." : "", port); 1153 } else 1154 *cport = 0; 1155 1156 snprintf(mybuf, sizeof(mybuf), "%s.%s%s", net, host, cport); 1157 return(mybuf); 1158 } 1159 1160 char * 1161 ipx_phost(struct sockaddr *sa) 1162 { 1163 struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa; 1164 struct sockaddr_ipx work; 1165 static union ipx_net ipx_zeronet; 1166 char *p; 1167 1168 work = *sipx; 1169 work.sipx_addr.x_port = 0; 1170 work.sipx_addr.x_net = ipx_zeronet; 1171 p = ipx_print((struct sockaddr *)&work); 1172 if (strncmp("*.", p, 2) == 0) p += 2; 1173 1174 return(p); 1175 } 1176 1177 void 1178 upHex(char *p0) 1179 { 1180 char *p = p0; 1181 1182 for (; *p; p++) 1183 switch (*p) { 1184 1185 case 'a': 1186 case 'b': 1187 case 'c': 1188 case 'd': 1189 case 'e': 1190 case 'f': 1191 *p += ('A' - 'a'); 1192 break; 1193 } 1194 } 1195 1196 static const char * 1197 labelops(struct rtentry *rt) 1198 { 1199 const char *lops[] = { "push", "pop", "swap", "pop all" }; 1200 static char buffer[100]; 1201 char *cp = buffer; 1202 struct sockaddr_mpls *smpls; 1203 int i; 1204 1205 for (i=0; i<MPLS_MAXLOPS; ++i) { 1206 1207 if (rt->rt_shim[i] == NULL) 1208 break; 1209 if (i>0) { 1210 cp += snprintf(cp, 1211 sizeof(buffer) - (cp - buffer), 1212 ", "); 1213 } 1214 smpls = (struct sockaddr_mpls *)kgetsa(rt->rt_shim[i]); 1215 if (smpls->smpls_op != MPLSLOP_POP && 1216 smpls->smpls_op != MPLSLOP_POPALL){ 1217 cp += snprintf(cp, 1218 sizeof(buffer) - (cp - buffer), 1219 "%s %d", 1220 lops[smpls->smpls_op - 1], 1221 ntohl(smpls->smpls_label)); 1222 } else { 1223 cp += snprintf(cp, 1224 sizeof(buffer) - (cp - buffer), 1225 "%s", 1226 lops[smpls->smpls_op - 1]); 1227 } 1228 } 1229 1230 return (buffer); 1231 } 1232