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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 #if 0 36 static char sccsid[] = "From: @(#)route.c 8.6 (Berkeley) 4/28/95"; 37 #endif 38 static const char rcsid[] = 39 "$FreeBSD$"; 40 #endif /* not lint */ 41 42 #include <sys/param.h> 43 #include <sys/protosw.h> 44 #include <sys/socket.h> 45 #include <sys/time.h> 46 47 #include <net/ethernet.h> 48 #include <net/if.h> 49 #include <net/if_var.h> 50 #include <net/if_dl.h> 51 #include <net/if_types.h> 52 #include <net/radix.h> 53 #include <net/route.h> 54 55 #include <netinet/in.h> 56 #include <netipx/ipx.h> 57 #include <netatalk/at.h> 58 #include <netgraph/ng_socket.h> 59 60 #include <sys/sysctl.h> 61 62 #include <arpa/inet.h> 63 #include <libutil.h> 64 #include <netdb.h> 65 #include <stdio.h> 66 #include <stdlib.h> 67 #include <string.h> 68 #include <unistd.h> 69 #include <err.h> 70 #include <time.h> 71 #include "netstat.h" 72 73 #define kget(p, d) (kread((u_long)(p), (char *)&(d), sizeof (d))) 74 75 /* 76 * Definitions for showing gateway flags. 77 */ 78 struct bits { 79 u_long b_mask; 80 char b_val; 81 } bits[] = { 82 { RTF_UP, 'U' }, 83 { RTF_GATEWAY, 'G' }, 84 { RTF_HOST, 'H' }, 85 { RTF_REJECT, 'R' }, 86 { RTF_DYNAMIC, 'D' }, 87 { RTF_MODIFIED, 'M' }, 88 { RTF_DONE, 'd' }, /* Completed -- for routing messages only */ 89 { RTF_CLONING, 'C' }, 90 { RTF_XRESOLVE, 'X' }, 91 { RTF_LLINFO, 'L' }, 92 { RTF_STATIC, 'S' }, 93 { RTF_PROTO1, '1' }, 94 { RTF_PROTO2, '2' }, 95 { RTF_WASCLONED,'W' }, 96 { RTF_PRCLONING,'c' }, 97 { RTF_PROTO3, '3' }, 98 { RTF_BLACKHOLE,'B' }, 99 { RTF_BROADCAST,'b' }, 100 { 0 , 0 } 101 }; 102 103 typedef union { 104 long dummy; /* Helps align structure. */ 105 struct sockaddr u_sa; 106 u_short u_data[128]; 107 } sa_u; 108 109 static sa_u pt_u; 110 111 int do_rtent = 0; 112 struct rtentry rtentry; 113 struct radix_node rnode; 114 struct radix_mask rmask; 115 struct radix_node_head *rt_tables[AF_MAX+1]; 116 117 int NewTree = 0; 118 119 static struct sockaddr *kgetsa (struct sockaddr *); 120 static void size_cols (int ef, struct radix_node *rn); 121 static void size_cols_tree (struct radix_node *rn); 122 static void size_cols_rtentry (struct rtentry *rt); 123 static void p_tree (struct radix_node *); 124 static void p_rtnode (void); 125 static void ntreestuff (void); 126 static void np_rtentry (struct rt_msghdr *); 127 static void p_sockaddr (struct sockaddr *, struct sockaddr *, int, int); 128 static const char *fmt_sockaddr (struct sockaddr *sa, struct sockaddr *mask, 129 int flags); 130 static void p_flags (int, const char *); 131 static const char *fmt_flags(int f); 132 static void p_rtentry (struct rtentry *); 133 static u_long forgemask (u_long); 134 static void domask (char *, u_long, u_long); 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 } 154 155 kget(rtree, rt_tables); 156 for (i = 0; i <= AF_MAX; i++) { 157 if ((rnh = rt_tables[i]) == 0) 158 continue; 159 kget(rnh, head); 160 if (i == AF_UNSPEC) { 161 if (Aflag && af == 0) { 162 printf("Netmasks:\n"); 163 p_tree(head.rnh_treetop); 164 } 165 } else if (af == AF_UNSPEC || af == i) { 166 size_cols(i, head.rnh_treetop); 167 pr_family(i); 168 do_rtent = 1; 169 pr_rthdr(i); 170 p_tree(head.rnh_treetop); 171 } 172 } 173 } 174 } 175 176 /* 177 * Print address family header before a section of the routing table. 178 */ 179 void 180 pr_family(int af1) 181 { 182 const char *afname; 183 184 switch (af1) { 185 case AF_INET: 186 afname = "Internet"; 187 break; 188 #ifdef INET6 189 case AF_INET6: 190 afname = "Internet6"; 191 break; 192 #endif /*INET6*/ 193 case AF_IPX: 194 afname = "IPX"; 195 break; 196 case AF_ISO: 197 afname = "ISO"; 198 break; 199 case AF_APPLETALK: 200 afname = "AppleTalk"; 201 break; 202 case AF_CCITT: 203 afname = "X.25"; 204 break; 205 case AF_NETGRAPH: 206 afname = "Netgraph"; 207 break; 208 default: 209 afname = NULL; 210 break; 211 } 212 if (afname) 213 printf("\n%s:\n", afname); 214 else 215 printf("\nProtocol Family %d:\n", af1); 216 } 217 218 /* column widths; each followed by one space */ 219 #ifndef INET6 220 #define WID_DST_DEFAULT(af) 18 /* width of destination column */ 221 #define WID_GW_DEFAULT(af) 18 /* width of gateway column */ 222 #define WID_IF_DEFAULT(af) (Wflag ? 8 : 6) /* width of netif column */ 223 #else 224 #define WID_DST_DEFAULT(af) \ 225 ((af) == AF_INET6 ? (numeric_addr ? 33: 18) : 18) 226 #define WID_GW_DEFAULT(af) \ 227 ((af) == AF_INET6 ? (numeric_addr ? 29 : 18) : 18) 228 #define WID_IF_DEFAULT(af) ((af) == AF_INET6 ? 8 : (Wflag ? 8 : 6)) 229 #endif /*INET6*/ 230 231 static int wid_dst; 232 static int wid_gw; 233 static int wid_flags; 234 static int wid_refs; 235 static int wid_use; 236 static int wid_mtu; 237 static int wid_if; 238 static int wid_expire; 239 240 static void 241 size_cols(int ef, struct radix_node *rn) 242 { 243 wid_dst = WID_DST_DEFAULT(ef); 244 wid_gw = WID_GW_DEFAULT(ef); 245 wid_flags = 6; 246 wid_refs = 6; 247 wid_use = 8; 248 wid_mtu = 6; 249 wid_if = WID_IF_DEFAULT(ef); 250 wid_expire = 6; 251 252 if (Wflag) 253 size_cols_tree(rn); 254 } 255 256 static void 257 size_cols_tree(struct radix_node *rn) 258 { 259 again: 260 kget(rn, rnode); 261 if (rnode.rn_bit < 0) { 262 if ((rnode.rn_flags & RNF_ROOT) == 0) { 263 kget(rn, rtentry); 264 size_cols_rtentry(&rtentry); 265 } 266 if ((rn = rnode.rn_dupedkey)) 267 goto again; 268 } else { 269 rn = rnode.rn_right; 270 size_cols_tree(rnode.rn_left); 271 size_cols_tree(rn); 272 } 273 } 274 275 static void 276 size_cols_rtentry(struct rtentry *rt) 277 { 278 static struct ifnet ifnet, *lastif; 279 struct rtentry parent; 280 static char buffer[100]; 281 const char *bp; 282 struct sockaddr *sa; 283 sa_u addr, mask; 284 int len; 285 286 /* 287 * Don't print protocol-cloned routes unless -a. 288 */ 289 if (rt->rt_flags & RTF_WASCLONED && !aflag) { 290 kget(rt->rt_parent, parent); 291 if (parent.rt_flags & RTF_PRCLONING) 292 return; 293 } 294 295 bzero(&addr, sizeof(addr)); 296 if ((sa = kgetsa(rt_key(rt)))) 297 bcopy(sa, &addr, sa->sa_len); 298 bzero(&mask, sizeof(mask)); 299 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 300 bcopy(sa, &mask, sa->sa_len); 301 bp = fmt_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags); 302 len = strlen(bp); 303 wid_dst = MAX(len, wid_dst); 304 305 bp = fmt_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST); 306 len = strlen(bp); 307 wid_gw = MAX(len, wid_gw); 308 309 bp = fmt_flags(rt->rt_flags); 310 len = strlen(bp); 311 wid_flags = MAX(len, wid_flags); 312 313 if (addr.u_sa.sa_family == AF_INET || Wflag) { 314 len = snprintf(buffer, sizeof(buffer), "%ld", rt->rt_refcnt); 315 wid_refs = MAX(len, wid_refs); 316 len = snprintf(buffer, sizeof(buffer), "%lu", rt->rt_use); 317 wid_use = MAX(len, wid_use); 318 if (Wflag && rt->rt_rmx.rmx_mtu != 0) { 319 len = snprintf(buffer, sizeof(buffer), 320 "%lu", rt->rt_rmx.rmx_mtu); 321 wid_mtu = MAX(len, wid_mtu); 322 } 323 } 324 if (rt->rt_ifp) { 325 if (rt->rt_ifp != lastif) { 326 kget(rt->rt_ifp, ifnet); 327 lastif = rt->rt_ifp; 328 len = strlen(ifnet.if_xname); 329 wid_if = MAX(len, wid_if); 330 } 331 if (rt->rt_rmx.rmx_expire) { 332 time_t expire_time; 333 334 if ((expire_time = 335 rt->rt_rmx.rmx_expire - time(NULL)) > 0) { 336 len = snprintf(buffer, sizeof(buffer), "%d", 337 (int)expire_time); 338 wid_expire = MAX(len, wid_expire); 339 } 340 } 341 } 342 } 343 344 345 /* 346 * Print header for routing table columns. 347 */ 348 void 349 pr_rthdr(int af1) 350 { 351 352 if (Aflag) 353 printf("%-8.8s ","Address"); 354 if (af1 == AF_INET || Wflag) { 355 if (Wflag) { 356 printf("%-*.*s %-*.*s %-*.*s %*.*s %*.*s %*.*s %*.*s %*s\n", 357 wid_dst, wid_dst, "Destination", 358 wid_gw, wid_gw, "Gateway", 359 wid_flags, wid_flags, "Flags", 360 wid_refs, wid_refs, "Refs", 361 wid_use, wid_use, "Use", 362 wid_mtu, wid_mtu, "Mtu", 363 wid_if, wid_if, "Netif", 364 wid_expire, "Expire"); 365 } else { 366 printf("%-*.*s %-*.*s %-*.*s %*.*s %*.*s %*.*s %*s\n", 367 wid_dst, wid_dst, "Destination", 368 wid_gw, wid_gw, "Gateway", 369 wid_flags, wid_flags, "Flags", 370 wid_refs, wid_refs, "Refs", 371 wid_use, wid_use, "Use", 372 wid_if, wid_if, "Netif", 373 wid_expire, "Expire"); 374 } 375 } else { 376 printf("%-*.*s %-*.*s %-*.*s %*.*s %*s\n", 377 wid_dst, wid_dst, "Destination", 378 wid_gw, wid_gw, "Gateway", 379 wid_flags, wid_flags, "Flags", 380 wid_if, wid_if, "Netif", 381 wid_expire, "Expire"); 382 } 383 } 384 385 static struct sockaddr * 386 kgetsa(struct sockaddr *dst) 387 { 388 389 kget(dst, pt_u.u_sa); 390 if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa)) 391 kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len); 392 return (&pt_u.u_sa); 393 } 394 395 static void 396 p_tree(struct radix_node *rn) 397 { 398 399 again: 400 kget(rn, rnode); 401 if (rnode.rn_bit < 0) { 402 if (Aflag) 403 printf("%-8.8lx ", (u_long)rn); 404 if (rnode.rn_flags & RNF_ROOT) { 405 if (Aflag) 406 printf("(root node)%s", 407 rnode.rn_dupedkey ? " =>\n" : "\n"); 408 } else if (do_rtent) { 409 kget(rn, rtentry); 410 p_rtentry(&rtentry); 411 if (Aflag) 412 p_rtnode(); 413 } else { 414 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key), 415 NULL, 0, 44); 416 putchar('\n'); 417 } 418 if ((rn = rnode.rn_dupedkey)) 419 goto again; 420 } else { 421 if (Aflag && do_rtent) { 422 printf("%-8.8lx ", (u_long)rn); 423 p_rtnode(); 424 } 425 rn = rnode.rn_right; 426 p_tree(rnode.rn_left); 427 p_tree(rn); 428 } 429 } 430 431 char nbuf[20]; 432 433 static void 434 p_rtnode(void) 435 { 436 struct radix_mask *rm = rnode.rn_mklist; 437 438 if (rnode.rn_bit < 0) { 439 if (rnode.rn_mask) { 440 printf("\t mask "); 441 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask), 442 NULL, 0, -1); 443 } else if (rm == 0) 444 return; 445 } else { 446 sprintf(nbuf, "(%d)", rnode.rn_bit); 447 printf("%6.6s %8.8lx : %8.8lx", nbuf, (u_long)rnode.rn_left, (u_long)rnode.rn_right); 448 } 449 while (rm) { 450 kget(rm, rmask); 451 sprintf(nbuf, " %d refs, ", rmask.rm_refs); 452 printf(" mk = %8.8lx {(%d),%s", 453 (u_long)rm, -1 - rmask.rm_bit, rmask.rm_refs ? nbuf : " "); 454 if (rmask.rm_flags & RNF_NORMAL) { 455 struct radix_node rnode_aux; 456 printf(" <normal>, "); 457 kget(rmask.rm_leaf, rnode_aux); 458 p_sockaddr(kgetsa((struct sockaddr *)rnode_aux.rn_mask), 459 NULL, 0, -1); 460 } else 461 p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 462 NULL, 0, -1); 463 putchar('}'); 464 if ((rm = rmask.rm_mklist)) 465 printf(" ->"); 466 } 467 putchar('\n'); 468 } 469 470 static void 471 ntreestuff(void) 472 { 473 size_t needed; 474 int mib[6]; 475 char *buf, *next, *lim; 476 struct rt_msghdr *rtm; 477 478 mib[0] = CTL_NET; 479 mib[1] = PF_ROUTE; 480 mib[2] = 0; 481 mib[3] = 0; 482 mib[4] = NET_RT_DUMP; 483 mib[5] = 0; 484 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) { 485 err(1, "sysctl: net.route.0.0.dump estimate"); 486 } 487 488 if ((buf = malloc(needed)) == 0) { 489 err(2, "malloc(%lu)", (unsigned long)needed); 490 } 491 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { 492 err(1, "sysctl: net.route.0.0.dump"); 493 } 494 lim = buf + needed; 495 for (next = buf; next < lim; next += rtm->rtm_msglen) { 496 rtm = (struct rt_msghdr *)next; 497 np_rtentry(rtm); 498 } 499 } 500 501 static void 502 np_rtentry(struct rt_msghdr *rtm) 503 { 504 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 505 #ifdef notdef 506 static int masks_done, banner_printed; 507 #endif 508 static int old_af; 509 int af1 = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST; 510 511 #ifdef notdef 512 /* for the moment, netmasks are skipped over */ 513 if (!banner_printed) { 514 printf("Netmasks:\n"); 515 banner_printed = 1; 516 } 517 if (masks_done == 0) { 518 if (rtm->rtm_addrs != RTA_DST ) { 519 masks_done = 1; 520 af1 = sa->sa_family; 521 } 522 } else 523 #endif 524 af1 = sa->sa_family; 525 if (af1 != old_af) { 526 pr_family(af1); 527 old_af = af1; 528 } 529 if (rtm->rtm_addrs == RTA_DST) 530 p_sockaddr(sa, NULL, 0, 36); 531 else { 532 p_sockaddr(sa, NULL, rtm->rtm_flags, 16); 533 sa = (struct sockaddr *)(SA_SIZE(sa) + (char *)sa); 534 p_sockaddr(sa, NULL, 0, 18); 535 } 536 p_flags(rtm->rtm_flags & interesting, "%-6.6s "); 537 putchar('\n'); 538 } 539 540 static void 541 p_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags, int width) 542 { 543 const char *cp; 544 545 cp = fmt_sockaddr(sa, mask, flags); 546 547 if (width < 0 ) 548 printf("%s ", cp); 549 else { 550 if (numeric_addr) 551 printf("%-*s ", width, cp); 552 else 553 printf("%-*.*s ", width, width, cp); 554 } 555 } 556 557 static const char * 558 fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags) 559 { 560 static char workbuf[128]; 561 const char *cp; 562 563 switch(sa->sa_family) { 564 case AF_INET: 565 { 566 struct sockaddr_in *sin = (struct sockaddr_in *)sa; 567 568 if ((sin->sin_addr.s_addr == INADDR_ANY) && 569 mask && 570 ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr) 571 ==0L) 572 cp = "default" ; 573 else if (flags & RTF_HOST) 574 cp = routename(sin->sin_addr.s_addr); 575 else if (mask) 576 cp = netname(sin->sin_addr.s_addr, 577 ntohl(((struct sockaddr_in *)mask) 578 ->sin_addr.s_addr)); 579 else 580 cp = netname(sin->sin_addr.s_addr, 0L); 581 break; 582 } 583 584 #ifdef INET6 585 case AF_INET6: 586 { 587 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa; 588 struct in6_addr *in6 = &sa6->sin6_addr; 589 590 /* 591 * XXX: This is a special workaround for KAME kernels. 592 * sin6_scope_id field of SA should be set in the future. 593 */ 594 if (IN6_IS_ADDR_LINKLOCAL(in6) || 595 IN6_IS_ADDR_MC_LINKLOCAL(in6)) { 596 /* XXX: override is ok? */ 597 sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]); 598 *(u_short *)&in6->s6_addr[2] = 0; 599 } 600 601 if (flags & RTF_HOST) 602 cp = routename6(sa6); 603 else if (mask) 604 cp = netname6(sa6, 605 &((struct sockaddr_in6 *)mask)->sin6_addr); 606 else { 607 cp = netname6(sa6, NULL); 608 } 609 break; 610 } 611 #endif /*INET6*/ 612 613 case AF_IPX: 614 { 615 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 616 if (ipx_nullnet(satoipx_addr(work))) 617 cp = "default"; 618 else 619 cp = ipx_print(sa); 620 break; 621 } 622 case AF_APPLETALK: 623 { 624 if (!(flags & RTF_HOST) && mask) 625 cp = atalk_print2(sa,mask,9); 626 else 627 cp = atalk_print(sa,11); 628 break; 629 } 630 case AF_NETGRAPH: 631 { 632 printf("%s", ((struct sockaddr_ng *)sa)->sg_data); 633 break; 634 } 635 636 case AF_LINK: 637 { 638 struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa; 639 640 if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && 641 sdl->sdl_slen == 0) { 642 (void) sprintf(workbuf, "link#%d", sdl->sdl_index); 643 cp = workbuf; 644 } else 645 switch (sdl->sdl_type) { 646 647 case IFT_ETHER: 648 if (sdl->sdl_alen == ETHER_ADDR_LEN) { 649 cp = ether_ntoa((struct ether_addr *) 650 (sdl->sdl_data + sdl->sdl_nlen)); 651 break; 652 } 653 /* FALLTHROUGH */ 654 default: 655 cp = link_ntoa(sdl); 656 break; 657 } 658 break; 659 } 660 661 default: 662 { 663 u_char *s = (u_char *)sa->sa_data, *slim; 664 char *cq, *cqlim; 665 666 cq = workbuf; 667 slim = sa->sa_len + (u_char *) sa; 668 cqlim = cq + sizeof(workbuf) - 6; 669 cq += sprintf(cq, "(%d)", sa->sa_family); 670 while (s < slim && cq < cqlim) { 671 cq += sprintf(cq, " %02x", *s++); 672 if (s < slim) 673 cq += sprintf(cq, "%02x", *s++); 674 } 675 cp = workbuf; 676 } 677 } 678 679 return (cp); 680 } 681 682 static void 683 p_flags(int f, const char *format) 684 { 685 printf(format, fmt_flags(f)); 686 } 687 688 static const char * 689 fmt_flags(int f) 690 { 691 static char name[33]; 692 char *flags; 693 struct bits *p = bits; 694 695 for (flags = name; p->b_mask; p++) 696 if (p->b_mask & f) 697 *flags++ = p->b_val; 698 *flags = '\0'; 699 return (name); 700 } 701 702 static void 703 p_rtentry(struct rtentry *rt) 704 { 705 static struct ifnet ifnet, *lastif; 706 struct rtentry parent; 707 static char buffer[128]; 708 static char prettyname[128]; 709 struct sockaddr *sa; 710 sa_u addr, mask; 711 712 /* 713 * Don't print protocol-cloned routes unless -a. 714 */ 715 if (rt->rt_flags & RTF_WASCLONED && !aflag) { 716 kget(rt->rt_parent, parent); 717 if (parent.rt_flags & RTF_PRCLONING) 718 return; 719 } 720 721 bzero(&addr, sizeof(addr)); 722 if ((sa = kgetsa(rt_key(rt)))) 723 bcopy(sa, &addr, sa->sa_len); 724 bzero(&mask, sizeof(mask)); 725 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 726 bcopy(sa, &mask, sa->sa_len); 727 p_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags, wid_dst); 728 p_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST, wid_gw); 729 snprintf(buffer, sizeof(buffer), "%%-%d.%ds ", wid_flags, wid_flags); 730 p_flags(rt->rt_flags, buffer); 731 if (addr.u_sa.sa_family == AF_INET || Wflag) { 732 printf("%*ld %*lu ", wid_refs, rt->rt_refcnt, 733 wid_use, rt->rt_use); 734 if (Wflag) { 735 if (rt->rt_rmx.rmx_mtu != 0) 736 printf("%*lu ", wid_mtu, rt->rt_rmx.rmx_mtu); 737 else 738 printf("%*s ", wid_mtu, ""); 739 } 740 } 741 if (rt->rt_ifp) { 742 if (rt->rt_ifp != lastif) { 743 kget(rt->rt_ifp, ifnet); 744 lastif = rt->rt_ifp; 745 strlcpy(prettyname, ifnet.if_xname, sizeof(prettyname)); 746 } 747 printf("%*.*s", wid_if, wid_if, prettyname); 748 if (rt->rt_rmx.rmx_expire) { 749 time_t expire_time; 750 751 if ((expire_time = 752 rt->rt_rmx.rmx_expire - time((time_t *)0)) > 0) 753 printf(" %*d", wid_expire, (int)expire_time); 754 } 755 if (rt->rt_nodes[0].rn_dupedkey) 756 printf(" =>"); 757 } 758 putchar('\n'); 759 } 760 761 char * 762 routename(u_long in) 763 { 764 char *cp; 765 static char line[MAXHOSTNAMELEN]; 766 struct hostent *hp; 767 768 cp = 0; 769 if (!numeric_addr) { 770 hp = gethostbyaddr((char *)&in, sizeof (struct in_addr), 771 AF_INET); 772 if (hp) { 773 cp = hp->h_name; 774 trimdomain(cp, strlen(cp)); 775 } 776 } 777 if (cp) { 778 strncpy(line, cp, sizeof(line) - 1); 779 line[sizeof(line) - 1] = '\0'; 780 } else { 781 #define C(x) ((x) & 0xff) 782 in = ntohl(in); 783 sprintf(line, "%lu.%lu.%lu.%lu", 784 C(in >> 24), C(in >> 16), C(in >> 8), C(in)); 785 } 786 return (line); 787 } 788 789 static u_long 790 forgemask(u_long a) 791 { 792 u_long m; 793 794 if (IN_CLASSA(a)) 795 m = IN_CLASSA_NET; 796 else if (IN_CLASSB(a)) 797 m = IN_CLASSB_NET; 798 else 799 m = IN_CLASSC_NET; 800 return (m); 801 } 802 803 static void 804 domask(char *dst, u_long addr, u_long mask) 805 { 806 int b, i; 807 808 if (!mask || (forgemask(addr) == mask)) { 809 *dst = '\0'; 810 return; 811 } 812 i = 0; 813 for (b = 0; b < 32; b++) 814 if (mask & (1 << b)) { 815 int bb; 816 817 i = b; 818 for (bb = b+1; bb < 32; bb++) 819 if (!(mask & (1 << bb))) { 820 i = -1; /* noncontig */ 821 break; 822 } 823 break; 824 } 825 if (i == -1) 826 sprintf(dst, "&0x%lx", mask); 827 else 828 sprintf(dst, "/%d", 32-i); 829 } 830 831 /* 832 * Return the name of the network whose address is given. 833 * The address is assumed to be that of a net or subnet, not a host. 834 */ 835 char * 836 netname(u_long in, u_long mask) 837 { 838 char *cp = 0; 839 static char line[MAXHOSTNAMELEN]; 840 struct netent *np = 0; 841 u_long dmask; 842 u_long i; 843 844 #define NSHIFT(m) ( \ 845 (m) == IN_CLASSA_NET ? IN_CLASSA_NSHIFT : \ 846 (m) == IN_CLASSB_NET ? IN_CLASSB_NSHIFT : \ 847 (m) == IN_CLASSC_NET ? IN_CLASSC_NSHIFT : \ 848 0) 849 850 i = ntohl(in); 851 dmask = forgemask(i); 852 if (!numeric_addr && i) { 853 np = getnetbyaddr(i >> NSHIFT(mask), AF_INET); 854 if (np == NULL && mask == 0) 855 np = getnetbyaddr(i >> NSHIFT(dmask), AF_INET); 856 if (np != NULL) { 857 cp = np->n_name; 858 trimdomain(cp, strlen(cp)); 859 } 860 } 861 #undef NSHIFT 862 if (cp != NULL) { 863 strncpy(line, cp, sizeof(line) - 1); 864 line[sizeof(line) - 1] = '\0'; 865 } else { 866 switch (dmask) { 867 case IN_CLASSA_NET: 868 if ((i & IN_CLASSA_HOST) == 0) { 869 sprintf(line, "%lu", C(i >> 24)); 870 break; 871 } 872 /* FALLTHROUGH */ 873 case IN_CLASSB_NET: 874 if ((i & IN_CLASSB_HOST) == 0) { 875 sprintf(line, "%lu.%lu", 876 C(i >> 24), C(i >> 16)); 877 break; 878 } 879 /* FALLTHROUGH */ 880 case IN_CLASSC_NET: 881 if ((i & IN_CLASSC_HOST) == 0) { 882 sprintf(line, "%lu.%lu.%lu", 883 C(i >> 24), C(i >> 16), C(i >> 8)); 884 break; 885 } 886 /* FALLTHROUGH */ 887 default: 888 sprintf(line, "%lu.%lu.%lu.%lu", 889 C(i >> 24), C(i >> 16), C(i >> 8), C(i)); 890 break; 891 } 892 } 893 domask(line + strlen(line), i, mask); 894 return (line); 895 } 896 897 #ifdef INET6 898 const char * 899 netname6(struct sockaddr_in6 *sa6, struct in6_addr *mask) 900 { 901 static char line[MAXHOSTNAMELEN]; 902 u_char *p = (u_char *)mask; 903 u_char *lim; 904 int masklen, illegal = 0, flag = NI_WITHSCOPEID; 905 906 if (mask) { 907 for (masklen = 0, lim = p + 16; p < lim; p++) { 908 switch (*p) { 909 case 0xff: 910 masklen += 8; 911 break; 912 case 0xfe: 913 masklen += 7; 914 break; 915 case 0xfc: 916 masklen += 6; 917 break; 918 case 0xf8: 919 masklen += 5; 920 break; 921 case 0xf0: 922 masklen += 4; 923 break; 924 case 0xe0: 925 masklen += 3; 926 break; 927 case 0xc0: 928 masklen += 2; 929 break; 930 case 0x80: 931 masklen += 1; 932 break; 933 case 0x00: 934 break; 935 default: 936 illegal ++; 937 break; 938 } 939 } 940 if (illegal) 941 fprintf(stderr, "illegal prefixlen\n"); 942 } 943 else 944 masklen = 128; 945 946 if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr)) 947 return("default"); 948 949 if (numeric_addr) 950 flag |= NI_NUMERICHOST; 951 getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line), 952 NULL, 0, flag); 953 954 if (numeric_addr) 955 sprintf(&line[strlen(line)], "/%d", masklen); 956 957 return line; 958 } 959 960 char * 961 routename6(struct sockaddr_in6 *sa6) 962 { 963 static char line[MAXHOSTNAMELEN]; 964 int flag = NI_WITHSCOPEID; 965 /* use local variable for safety */ 966 struct sockaddr_in6 sa6_local = {AF_INET6, sizeof(sa6_local),}; 967 968 sa6_local.sin6_addr = sa6->sin6_addr; 969 sa6_local.sin6_scope_id = sa6->sin6_scope_id; 970 971 if (numeric_addr) 972 flag |= NI_NUMERICHOST; 973 974 getnameinfo((struct sockaddr *)&sa6_local, sa6_local.sin6_len, 975 line, sizeof(line), NULL, 0, flag); 976 977 return line; 978 } 979 #endif /*INET6*/ 980 981 /* 982 * Print routing statistics 983 */ 984 void 985 rt_stats(u_long rtsaddr, u_long rttaddr) 986 { 987 struct rtstat rtstat; 988 int rttrash; 989 990 if (rtsaddr == 0) { 991 printf("rtstat: symbol not in namelist\n"); 992 return; 993 } 994 if (rttaddr == 0) { 995 printf("rttrash: symbol not in namelist\n"); 996 return; 997 } 998 kread(rtsaddr, (char *)&rtstat, sizeof (rtstat)); 999 kread(rttaddr, (char *)&rttrash, sizeof (rttrash)); 1000 printf("routing:\n"); 1001 1002 #define p(f, m) if (rtstat.f || sflag <= 1) \ 1003 printf(m, rtstat.f, plural(rtstat.f)) 1004 1005 p(rts_badredirect, "\t%u bad routing redirect%s\n"); 1006 p(rts_dynamic, "\t%u dynamically created route%s\n"); 1007 p(rts_newgateway, "\t%u new gateway%s due to redirects\n"); 1008 p(rts_unreach, "\t%u destination%s found unreachable\n"); 1009 p(rts_wildcard, "\t%u use%s of a wildcard route\n"); 1010 #undef p 1011 1012 if (rttrash || sflag <= 1) 1013 printf("\t%u route%s not in table but not freed\n", 1014 rttrash, plural(rttrash)); 1015 } 1016 1017 char * 1018 ipx_print(struct sockaddr *sa) 1019 { 1020 u_short port; 1021 struct servent *sp = 0; 1022 const char *net = "", *host = ""; 1023 char *p; 1024 u_char *q; 1025 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 1026 static char mybuf[50]; 1027 char cport[10], chost[15], cnet[15]; 1028 1029 port = ntohs(work.x_port); 1030 1031 if (ipx_nullnet(work) && ipx_nullhost(work)) { 1032 1033 if (port) { 1034 if (sp) 1035 sprintf(mybuf, "*.%s", sp->s_name); 1036 else 1037 sprintf(mybuf, "*.%x", port); 1038 } else 1039 sprintf(mybuf, "*.*"); 1040 1041 return (mybuf); 1042 } 1043 1044 if (ipx_wildnet(work)) 1045 net = "any"; 1046 else if (ipx_nullnet(work)) 1047 net = "*"; 1048 else { 1049 q = work.x_net.c_net; 1050 sprintf(cnet, "%02x%02x%02x%02x", 1051 q[0], q[1], q[2], q[3]); 1052 for (p = cnet; *p == '0' && p < cnet + 8; p++) 1053 continue; 1054 net = p; 1055 } 1056 1057 if (ipx_wildhost(work)) 1058 host = "any"; 1059 else if (ipx_nullhost(work)) 1060 host = "*"; 1061 else { 1062 q = work.x_host.c_host; 1063 sprintf(chost, "%02x%02x%02x%02x%02x%02x", 1064 q[0], q[1], q[2], q[3], q[4], q[5]); 1065 for (p = chost; *p == '0' && p < chost + 12; p++) 1066 continue; 1067 host = p; 1068 } 1069 1070 if (port) { 1071 if (strcmp(host, "*") == 0) 1072 host = ""; 1073 if (sp) 1074 snprintf(cport, sizeof(cport), 1075 "%s%s", *host ? "." : "", sp->s_name); 1076 else 1077 snprintf(cport, sizeof(cport), 1078 "%s%x", *host ? "." : "", port); 1079 } else 1080 *cport = 0; 1081 1082 snprintf(mybuf, sizeof(mybuf), "%s.%s%s", net, host, cport); 1083 return(mybuf); 1084 } 1085 1086 char * 1087 ipx_phost(struct sockaddr *sa) 1088 { 1089 struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa; 1090 struct sockaddr_ipx work; 1091 static union ipx_net ipx_zeronet; 1092 char *p; 1093 struct ipx_addr in; 1094 1095 work = *sipx; 1096 in = work.sipx_addr; 1097 1098 work.sipx_addr.x_port = 0; 1099 work.sipx_addr.x_net = ipx_zeronet; 1100 p = ipx_print((struct sockaddr *)&work); 1101 if (strncmp("*.", p, 2) == 0) p += 2; 1102 1103 return(p); 1104 } 1105 1106 void 1107 upHex(char *p0) 1108 { 1109 char *p = p0; 1110 1111 for (; *p; p++) 1112 switch (*p) { 1113 1114 case 'a': 1115 case 'b': 1116 case 'c': 1117 case 'd': 1118 case 'e': 1119 case 'f': 1120 *p += ('A' - 'a'); 1121 break; 1122 } 1123 } 1124