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 /* alignment constraint for routing socket */ 77 #define ROUNDUP(a) \ 78 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long)) 79 #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len)) 80 81 /* 82 * Definitions for showing gateway flags. 83 */ 84 struct bits { 85 u_long b_mask; 86 char b_val; 87 } bits[] = { 88 { RTF_UP, 'U' }, 89 { RTF_GATEWAY, 'G' }, 90 { RTF_HOST, 'H' }, 91 { RTF_REJECT, 'R' }, 92 { RTF_DYNAMIC, 'D' }, 93 { RTF_MODIFIED, 'M' }, 94 { RTF_DONE, 'd' }, /* Completed -- for routing messages only */ 95 { RTF_CLONING, 'C' }, 96 { RTF_XRESOLVE, 'X' }, 97 { RTF_LLINFO, 'L' }, 98 { RTF_STATIC, 'S' }, 99 { RTF_PROTO1, '1' }, 100 { RTF_PROTO2, '2' }, 101 { RTF_WASCLONED,'W' }, 102 { RTF_PRCLONING,'c' }, 103 { RTF_PROTO3, '3' }, 104 { RTF_BLACKHOLE,'B' }, 105 { RTF_BROADCAST,'b' }, 106 { 0 , 0 } 107 }; 108 109 typedef union { 110 long dummy; /* Helps align structure. */ 111 struct sockaddr u_sa; 112 u_short u_data[128]; 113 } sa_u; 114 115 static sa_u pt_u; 116 117 int do_rtent = 0; 118 struct rtentry rtentry; 119 struct radix_node rnode; 120 struct radix_mask rmask; 121 struct radix_node_head *rt_tables[AF_MAX+1]; 122 123 int NewTree = 0; 124 125 static struct sockaddr *kgetsa (struct sockaddr *); 126 static void size_cols (int ef, struct radix_node *rn); 127 static void size_cols_tree (struct radix_node *rn); 128 static void size_cols_rtentry (struct rtentry *rt); 129 static void p_tree (struct radix_node *); 130 static void p_rtnode (void); 131 static void ntreestuff (void); 132 static void np_rtentry (struct rt_msghdr *); 133 static void p_sockaddr (struct sockaddr *, struct sockaddr *, int, int); 134 static const char *fmt_sockaddr (struct sockaddr *sa, struct sockaddr *mask, 135 int flags); 136 static void p_flags (int, const char *); 137 static const char *fmt_flags(int f); 138 static void p_rtentry (struct rtentry *); 139 static u_long forgemask (u_long); 140 static void domask (char *, u_long, u_long); 141 142 /* 143 * Print routing tables. 144 */ 145 void 146 routepr(u_long rtree) 147 { 148 struct radix_node_head *rnh, head; 149 int i; 150 151 printf("Routing tables\n"); 152 153 if (Aflag == 0 && NewTree) 154 ntreestuff(); 155 else { 156 if (rtree == 0) { 157 printf("rt_tables: symbol not in namelist\n"); 158 return; 159 } 160 161 kget(rtree, rt_tables); 162 for (i = 0; i <= AF_MAX; i++) { 163 if ((rnh = rt_tables[i]) == 0) 164 continue; 165 kget(rnh, head); 166 if (i == AF_UNSPEC) { 167 if (Aflag && af == 0) { 168 printf("Netmasks:\n"); 169 p_tree(head.rnh_treetop); 170 } 171 } else if (af == AF_UNSPEC || af == i) { 172 size_cols(i, head.rnh_treetop); 173 pr_family(i); 174 do_rtent = 1; 175 pr_rthdr(i); 176 p_tree(head.rnh_treetop); 177 } 178 } 179 } 180 } 181 182 /* 183 * Print address family header before a section of the routing table. 184 */ 185 void 186 pr_family(int af1) 187 { 188 const char *afname; 189 190 switch (af1) { 191 case AF_INET: 192 afname = "Internet"; 193 break; 194 #ifdef INET6 195 case AF_INET6: 196 afname = "Internet6"; 197 break; 198 #endif /*INET6*/ 199 case AF_IPX: 200 afname = "IPX"; 201 break; 202 case AF_ISO: 203 afname = "ISO"; 204 break; 205 case AF_APPLETALK: 206 afname = "AppleTalk"; 207 break; 208 case AF_CCITT: 209 afname = "X.25"; 210 break; 211 case AF_NETGRAPH: 212 afname = "Netgraph"; 213 break; 214 default: 215 afname = NULL; 216 break; 217 } 218 if (afname) 219 printf("\n%s:\n", afname); 220 else 221 printf("\nProtocol Family %d:\n", af1); 222 } 223 224 /* column widths; each followed by one space */ 225 #ifndef INET6 226 #define WID_DST_DEFAULT(af) 18 /* width of destination column */ 227 #define WID_GW_DEFAULT(af) 18 /* width of gateway column */ 228 #define WID_IF_DEFAULT(af) (Wflag ? 8 : 6) /* width of netif column */ 229 #else 230 #define WID_DST_DEFAULT(af) \ 231 ((af) == AF_INET6 ? (numeric_addr ? 33: 18) : 18) 232 #define WID_GW_DEFAULT(af) \ 233 ((af) == AF_INET6 ? (numeric_addr ? 29 : 18) : 18) 234 #define WID_IF_DEFAULT(af) ((af) == AF_INET6 ? 8 : (Wflag ? 8 : 6)) 235 #endif /*INET6*/ 236 237 static int wid_dst; 238 static int wid_gw; 239 static int wid_flags; 240 static int wid_refs; 241 static int wid_use; 242 static int wid_mtu; 243 static int wid_if; 244 static int wid_expire; 245 246 static void 247 size_cols(int ef, struct radix_node *rn) 248 { 249 wid_dst = WID_DST_DEFAULT(ef); 250 wid_gw = WID_GW_DEFAULT(ef); 251 wid_flags = 6; 252 wid_refs = 6; 253 wid_use = 8; 254 wid_mtu = 6; 255 wid_if = WID_IF_DEFAULT(ef); 256 wid_expire = 6; 257 258 if (Wflag) 259 size_cols_tree(rn); 260 } 261 262 static void 263 size_cols_tree(struct radix_node *rn) 264 { 265 again: 266 kget(rn, rnode); 267 if (rnode.rn_bit < 0) { 268 if ((rnode.rn_flags & RNF_ROOT) == 0) { 269 kget(rn, rtentry); 270 size_cols_rtentry(&rtentry); 271 } 272 if ((rn = rnode.rn_dupedkey)) 273 goto again; 274 } else { 275 rn = rnode.rn_right; 276 size_cols_tree(rnode.rn_left); 277 size_cols_tree(rn); 278 } 279 } 280 281 static void 282 size_cols_rtentry(struct rtentry *rt) 283 { 284 static struct ifnet ifnet, *lastif; 285 struct rtentry parent; 286 static char buffer[100]; 287 const char *bp; 288 struct sockaddr *sa; 289 sa_u addr, mask; 290 int len; 291 292 /* 293 * Don't print protocol-cloned routes unless -a. 294 */ 295 if (rt->rt_flags & RTF_WASCLONED && !aflag) { 296 kget(rt->rt_parent, parent); 297 if (parent.rt_flags & RTF_PRCLONING) 298 return; 299 } 300 301 bzero(&addr, sizeof(addr)); 302 if ((sa = kgetsa(rt_key(rt)))) 303 bcopy(sa, &addr, sa->sa_len); 304 bzero(&mask, sizeof(mask)); 305 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 306 bcopy(sa, &mask, sa->sa_len); 307 bp = fmt_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags); 308 len = strlen(bp); 309 wid_dst = MAX(len, wid_dst); 310 311 bp = fmt_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST); 312 len = strlen(bp); 313 wid_gw = MAX(len, wid_gw); 314 315 bp = fmt_flags(rt->rt_flags); 316 len = strlen(bp); 317 wid_flags = MAX(len, wid_flags); 318 319 if (addr.u_sa.sa_family == AF_INET || Wflag) { 320 len = snprintf(buffer, sizeof(buffer), "%ld", rt->rt_refcnt); 321 wid_refs = MAX(len, wid_refs); 322 len = snprintf(buffer, sizeof(buffer), "%lu", rt->rt_use); 323 wid_use = MAX(len, wid_use); 324 if (Wflag && rt->rt_rmx.rmx_mtu != 0) { 325 len = snprintf(buffer, sizeof(buffer), 326 "%lu", rt->rt_rmx.rmx_mtu); 327 wid_mtu = MAX(len, wid_mtu); 328 } 329 } 330 if (rt->rt_ifp) { 331 if (rt->rt_ifp != lastif) { 332 kget(rt->rt_ifp, ifnet); 333 lastif = rt->rt_ifp; 334 len = strlen(ifnet.if_xname); 335 wid_if = MAX(len, wid_if); 336 } 337 if (rt->rt_rmx.rmx_expire) { 338 time_t expire_time; 339 340 if ((expire_time = 341 rt->rt_rmx.rmx_expire - time(NULL)) > 0) { 342 len = snprintf(buffer, sizeof(buffer), "%d", 343 (int)expire_time); 344 wid_expire = MAX(len, wid_expire); 345 } 346 } 347 } 348 } 349 350 351 /* 352 * Print header for routing table columns. 353 */ 354 void 355 pr_rthdr(int af1) 356 { 357 358 if (Aflag) 359 printf("%-8.8s ","Address"); 360 if (af1 == AF_INET || Wflag) { 361 if (Wflag) { 362 printf("%-*.*s %-*.*s %-*.*s %*.*s %*.*s %*.*s %*.*s %*s\n", 363 wid_dst, wid_dst, "Destination", 364 wid_gw, wid_gw, "Gateway", 365 wid_flags, wid_flags, "Flags", 366 wid_refs, wid_refs, "Refs", 367 wid_use, wid_use, "Use", 368 wid_mtu, wid_mtu, "Mtu", 369 wid_if, wid_if, "Netif", 370 wid_expire, "Expire"); 371 } else { 372 printf("%-*.*s %-*.*s %-*.*s %*.*s %*.*s %*.*s %*s\n", 373 wid_dst, wid_dst, "Destination", 374 wid_gw, wid_gw, "Gateway", 375 wid_flags, wid_flags, "Flags", 376 wid_refs, wid_refs, "Refs", 377 wid_use, wid_use, "Use", 378 wid_if, wid_if, "Netif", 379 wid_expire, "Expire"); 380 } 381 } else { 382 printf("%-*.*s %-*.*s %-*.*s %*.*s %*s\n", 383 wid_dst, wid_dst, "Destination", 384 wid_gw, wid_gw, "Gateway", 385 wid_flags, wid_flags, "Flags", 386 wid_if, wid_if, "Netif", 387 wid_expire, "Expire"); 388 } 389 } 390 391 static struct sockaddr * 392 kgetsa(struct sockaddr *dst) 393 { 394 395 kget(dst, pt_u.u_sa); 396 if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa)) 397 kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len); 398 return (&pt_u.u_sa); 399 } 400 401 static void 402 p_tree(struct radix_node *rn) 403 { 404 405 again: 406 kget(rn, rnode); 407 if (rnode.rn_bit < 0) { 408 if (Aflag) 409 printf("%-8.8lx ", (u_long)rn); 410 if (rnode.rn_flags & RNF_ROOT) { 411 if (Aflag) 412 printf("(root node)%s", 413 rnode.rn_dupedkey ? " =>\n" : "\n"); 414 } else if (do_rtent) { 415 kget(rn, rtentry); 416 p_rtentry(&rtentry); 417 if (Aflag) 418 p_rtnode(); 419 } else { 420 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key), 421 NULL, 0, 44); 422 putchar('\n'); 423 } 424 if ((rn = rnode.rn_dupedkey)) 425 goto again; 426 } else { 427 if (Aflag && do_rtent) { 428 printf("%-8.8lx ", (u_long)rn); 429 p_rtnode(); 430 } 431 rn = rnode.rn_right; 432 p_tree(rnode.rn_left); 433 p_tree(rn); 434 } 435 } 436 437 char nbuf[20]; 438 439 static void 440 p_rtnode(void) 441 { 442 struct radix_mask *rm = rnode.rn_mklist; 443 444 if (rnode.rn_bit < 0) { 445 if (rnode.rn_mask) { 446 printf("\t mask "); 447 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask), 448 NULL, 0, -1); 449 } else if (rm == 0) 450 return; 451 } else { 452 sprintf(nbuf, "(%d)", rnode.rn_bit); 453 printf("%6.6s %8.8lx : %8.8lx", nbuf, (u_long)rnode.rn_left, (u_long)rnode.rn_right); 454 } 455 while (rm) { 456 kget(rm, rmask); 457 sprintf(nbuf, " %d refs, ", rmask.rm_refs); 458 printf(" mk = %8.8lx {(%d),%s", 459 (u_long)rm, -1 - rmask.rm_bit, rmask.rm_refs ? nbuf : " "); 460 if (rmask.rm_flags & RNF_NORMAL) { 461 struct radix_node rnode_aux; 462 printf(" <normal>, "); 463 kget(rmask.rm_leaf, rnode_aux); 464 p_sockaddr(kgetsa((struct sockaddr *)rnode_aux.rn_mask), 465 NULL, 0, -1); 466 } else 467 p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 468 NULL, 0, -1); 469 putchar('}'); 470 if ((rm = rmask.rm_mklist)) 471 printf(" ->"); 472 } 473 putchar('\n'); 474 } 475 476 static void 477 ntreestuff(void) 478 { 479 size_t needed; 480 int mib[6]; 481 char *buf, *next, *lim; 482 struct rt_msghdr *rtm; 483 484 mib[0] = CTL_NET; 485 mib[1] = PF_ROUTE; 486 mib[2] = 0; 487 mib[3] = 0; 488 mib[4] = NET_RT_DUMP; 489 mib[5] = 0; 490 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) { 491 err(1, "sysctl: net.route.0.0.dump estimate"); 492 } 493 494 if ((buf = malloc(needed)) == 0) { 495 err(2, "malloc(%lu)", (unsigned long)needed); 496 } 497 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { 498 err(1, "sysctl: net.route.0.0.dump"); 499 } 500 lim = buf + needed; 501 for (next = buf; next < lim; next += rtm->rtm_msglen) { 502 rtm = (struct rt_msghdr *)next; 503 np_rtentry(rtm); 504 } 505 } 506 507 static void 508 np_rtentry(struct rt_msghdr *rtm) 509 { 510 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 511 #ifdef notdef 512 static int masks_done, banner_printed; 513 #endif 514 static int old_af; 515 int af1 = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST; 516 517 #ifdef notdef 518 /* for the moment, netmasks are skipped over */ 519 if (!banner_printed) { 520 printf("Netmasks:\n"); 521 banner_printed = 1; 522 } 523 if (masks_done == 0) { 524 if (rtm->rtm_addrs != RTA_DST ) { 525 masks_done = 1; 526 af1 = sa->sa_family; 527 } 528 } else 529 #endif 530 af1 = sa->sa_family; 531 if (af1 != old_af) { 532 pr_family(af1); 533 old_af = af1; 534 } 535 if (rtm->rtm_addrs == RTA_DST) 536 p_sockaddr(sa, NULL, 0, 36); 537 else { 538 p_sockaddr(sa, NULL, rtm->rtm_flags, 16); 539 sa = (struct sockaddr *)(ROUNDUP(sa->sa_len) + (char *)sa); 540 p_sockaddr(sa, NULL, 0, 18); 541 } 542 p_flags(rtm->rtm_flags & interesting, "%-6.6s "); 543 putchar('\n'); 544 } 545 546 static void 547 p_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags, int width) 548 { 549 const char *cp; 550 551 cp = fmt_sockaddr(sa, mask, flags); 552 553 if (width < 0 ) 554 printf("%s ", cp); 555 else { 556 if (numeric_addr) 557 printf("%-*s ", width, cp); 558 else 559 printf("%-*.*s ", width, width, cp); 560 } 561 } 562 563 static const char * 564 fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags) 565 { 566 static char workbuf[128]; 567 const char *cp; 568 569 switch(sa->sa_family) { 570 case AF_INET: 571 { 572 struct sockaddr_in *sin = (struct sockaddr_in *)sa; 573 574 if ((sin->sin_addr.s_addr == INADDR_ANY) && 575 mask && 576 ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr) 577 ==0L) 578 cp = "default" ; 579 else if (flags & RTF_HOST) 580 cp = routename(sin->sin_addr.s_addr); 581 else if (mask) 582 cp = netname(sin->sin_addr.s_addr, 583 ntohl(((struct sockaddr_in *)mask) 584 ->sin_addr.s_addr)); 585 else 586 cp = netname(sin->sin_addr.s_addr, 0L); 587 break; 588 } 589 590 #ifdef INET6 591 case AF_INET6: 592 { 593 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa; 594 struct in6_addr *in6 = &sa6->sin6_addr; 595 596 /* 597 * XXX: This is a special workaround for KAME kernels. 598 * sin6_scope_id field of SA should be set in the future. 599 */ 600 if (IN6_IS_ADDR_LINKLOCAL(in6) || 601 IN6_IS_ADDR_MC_LINKLOCAL(in6)) { 602 /* XXX: override is ok? */ 603 sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]); 604 *(u_short *)&in6->s6_addr[2] = 0; 605 } 606 607 if (flags & RTF_HOST) 608 cp = routename6(sa6); 609 else if (mask) 610 cp = netname6(sa6, 611 &((struct sockaddr_in6 *)mask)->sin6_addr); 612 else { 613 cp = netname6(sa6, NULL); 614 } 615 break; 616 } 617 #endif /*INET6*/ 618 619 case AF_IPX: 620 { 621 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 622 if (ipx_nullnet(satoipx_addr(work))) 623 cp = "default"; 624 else 625 cp = ipx_print(sa); 626 break; 627 } 628 case AF_APPLETALK: 629 { 630 if (!(flags & RTF_HOST) && mask) 631 cp = atalk_print2(sa,mask,9); 632 else 633 cp = atalk_print(sa,11); 634 break; 635 } 636 case AF_NETGRAPH: 637 { 638 printf("%s", ((struct sockaddr_ng *)sa)->sg_data); 639 break; 640 } 641 642 case AF_LINK: 643 { 644 struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa; 645 646 if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && 647 sdl->sdl_slen == 0) { 648 (void) sprintf(workbuf, "link#%d", sdl->sdl_index); 649 cp = workbuf; 650 } else 651 switch (sdl->sdl_type) { 652 653 case IFT_ETHER: 654 if (sdl->sdl_alen == ETHER_ADDR_LEN) { 655 cp = ether_ntoa((struct ether_addr *) 656 (sdl->sdl_data + sdl->sdl_nlen)); 657 break; 658 } 659 /* FALLTHROUGH */ 660 default: 661 cp = link_ntoa(sdl); 662 break; 663 } 664 break; 665 } 666 667 default: 668 { 669 u_char *s = (u_char *)sa->sa_data, *slim; 670 char *cq, *cqlim; 671 672 cq = workbuf; 673 slim = sa->sa_len + (u_char *) sa; 674 cqlim = cq + sizeof(workbuf) - 6; 675 cq += sprintf(cq, "(%d)", sa->sa_family); 676 while (s < slim && cq < cqlim) { 677 cq += sprintf(cq, " %02x", *s++); 678 if (s < slim) 679 cq += sprintf(cq, "%02x", *s++); 680 } 681 cp = workbuf; 682 } 683 } 684 685 return (cp); 686 } 687 688 static void 689 p_flags(int f, const char *format) 690 { 691 printf(format, fmt_flags(f)); 692 } 693 694 static const char * 695 fmt_flags(int f) 696 { 697 static char name[33]; 698 char *flags; 699 struct bits *p = bits; 700 701 for (flags = name; p->b_mask; p++) 702 if (p->b_mask & f) 703 *flags++ = p->b_val; 704 *flags = '\0'; 705 return (name); 706 } 707 708 static void 709 p_rtentry(struct rtentry *rt) 710 { 711 static struct ifnet ifnet, *lastif; 712 struct rtentry parent; 713 static char buffer[128]; 714 static char prettyname[128]; 715 struct sockaddr *sa; 716 sa_u addr, mask; 717 718 /* 719 * Don't print protocol-cloned routes unless -a. 720 */ 721 if (rt->rt_flags & RTF_WASCLONED && !aflag) { 722 kget(rt->rt_parent, parent); 723 if (parent.rt_flags & RTF_PRCLONING) 724 return; 725 } 726 727 bzero(&addr, sizeof(addr)); 728 if ((sa = kgetsa(rt_key(rt)))) 729 bcopy(sa, &addr, sa->sa_len); 730 bzero(&mask, sizeof(mask)); 731 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 732 bcopy(sa, &mask, sa->sa_len); 733 p_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags, wid_dst); 734 p_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST, wid_gw); 735 snprintf(buffer, sizeof(buffer), "%%-%d.%ds ", wid_flags, wid_flags); 736 p_flags(rt->rt_flags, buffer); 737 if (addr.u_sa.sa_family == AF_INET || Wflag) { 738 printf("%*ld %*lu ", wid_refs, rt->rt_refcnt, 739 wid_use, rt->rt_use); 740 if (Wflag) { 741 if (rt->rt_rmx.rmx_mtu != 0) 742 printf("%*lu ", wid_mtu, rt->rt_rmx.rmx_mtu); 743 else 744 printf("%*s ", wid_mtu, ""); 745 } 746 } 747 if (rt->rt_ifp) { 748 if (rt->rt_ifp != lastif) { 749 kget(rt->rt_ifp, ifnet); 750 lastif = rt->rt_ifp; 751 strlcpy(prettyname, ifnet.if_xname, sizeof(prettyname)); 752 } 753 printf("%*.*s", wid_if, wid_if, prettyname); 754 if (rt->rt_rmx.rmx_expire) { 755 time_t expire_time; 756 757 if ((expire_time = 758 rt->rt_rmx.rmx_expire - time((time_t *)0)) > 0) 759 printf(" %*d", wid_expire, (int)expire_time); 760 } 761 if (rt->rt_nodes[0].rn_dupedkey) 762 printf(" =>"); 763 } 764 putchar('\n'); 765 } 766 767 char * 768 routename(u_long in) 769 { 770 char *cp; 771 static char line[MAXHOSTNAMELEN]; 772 struct hostent *hp; 773 774 cp = 0; 775 if (!numeric_addr) { 776 hp = gethostbyaddr((char *)&in, sizeof (struct in_addr), 777 AF_INET); 778 if (hp) { 779 cp = hp->h_name; 780 trimdomain(cp, strlen(cp)); 781 } 782 } 783 if (cp) { 784 strncpy(line, cp, sizeof(line) - 1); 785 line[sizeof(line) - 1] = '\0'; 786 } else { 787 #define C(x) ((x) & 0xff) 788 in = ntohl(in); 789 sprintf(line, "%lu.%lu.%lu.%lu", 790 C(in >> 24), C(in >> 16), C(in >> 8), C(in)); 791 } 792 return (line); 793 } 794 795 static u_long 796 forgemask(u_long a) 797 { 798 u_long m; 799 800 if (IN_CLASSA(a)) 801 m = IN_CLASSA_NET; 802 else if (IN_CLASSB(a)) 803 m = IN_CLASSB_NET; 804 else 805 m = IN_CLASSC_NET; 806 return (m); 807 } 808 809 static void 810 domask(char *dst, u_long addr, u_long mask) 811 { 812 int b, i; 813 814 if (!mask || (forgemask(addr) == mask)) { 815 *dst = '\0'; 816 return; 817 } 818 i = 0; 819 for (b = 0; b < 32; b++) 820 if (mask & (1 << b)) { 821 int bb; 822 823 i = b; 824 for (bb = b+1; bb < 32; bb++) 825 if (!(mask & (1 << bb))) { 826 i = -1; /* noncontig */ 827 break; 828 } 829 break; 830 } 831 if (i == -1) 832 sprintf(dst, "&0x%lx", mask); 833 else 834 sprintf(dst, "/%d", 32-i); 835 } 836 837 /* 838 * Return the name of the network whose address is given. 839 * The address is assumed to be that of a net or subnet, not a host. 840 */ 841 char * 842 netname(u_long in, u_long mask) 843 { 844 char *cp = 0; 845 static char line[MAXHOSTNAMELEN]; 846 struct netent *np = 0; 847 u_long dmask; 848 u_long i; 849 850 #define NSHIFT(m) ( \ 851 (m) == IN_CLASSA_NET ? IN_CLASSA_NSHIFT : \ 852 (m) == IN_CLASSB_NET ? IN_CLASSB_NSHIFT : \ 853 (m) == IN_CLASSC_NET ? IN_CLASSC_NSHIFT : \ 854 0) 855 856 i = ntohl(in); 857 dmask = forgemask(i); 858 if (!numeric_addr && i) { 859 np = getnetbyaddr(i >> NSHIFT(mask), AF_INET); 860 if (np == NULL && mask == 0) 861 np = getnetbyaddr(i >> NSHIFT(dmask), AF_INET); 862 if (np != NULL) { 863 cp = np->n_name; 864 trimdomain(cp, strlen(cp)); 865 } 866 } 867 #undef NSHIFT 868 if (cp != NULL) { 869 strncpy(line, cp, sizeof(line) - 1); 870 line[sizeof(line) - 1] = '\0'; 871 } else { 872 switch (dmask) { 873 case IN_CLASSA_NET: 874 if ((i & IN_CLASSA_HOST) == 0) { 875 sprintf(line, "%lu", C(i >> 24)); 876 break; 877 } 878 /* FALLTHROUGH */ 879 case IN_CLASSB_NET: 880 if ((i & IN_CLASSB_HOST) == 0) { 881 sprintf(line, "%lu.%lu", 882 C(i >> 24), C(i >> 16)); 883 break; 884 } 885 /* FALLTHROUGH */ 886 case IN_CLASSC_NET: 887 if ((i & IN_CLASSC_HOST) == 0) { 888 sprintf(line, "%lu.%lu.%lu", 889 C(i >> 24), C(i >> 16), C(i >> 8)); 890 break; 891 } 892 /* FALLTHROUGH */ 893 default: 894 sprintf(line, "%lu.%lu.%lu.%lu", 895 C(i >> 24), C(i >> 16), C(i >> 8), C(i)); 896 break; 897 } 898 } 899 domask(line + strlen(line), i, mask); 900 return (line); 901 } 902 903 #ifdef INET6 904 const char * 905 netname6(struct sockaddr_in6 *sa6, struct in6_addr *mask) 906 { 907 static char line[MAXHOSTNAMELEN]; 908 u_char *p = (u_char *)mask; 909 u_char *lim; 910 int masklen, illegal = 0, flag = NI_WITHSCOPEID; 911 912 if (mask) { 913 for (masklen = 0, lim = p + 16; p < lim; p++) { 914 switch (*p) { 915 case 0xff: 916 masklen += 8; 917 break; 918 case 0xfe: 919 masklen += 7; 920 break; 921 case 0xfc: 922 masklen += 6; 923 break; 924 case 0xf8: 925 masklen += 5; 926 break; 927 case 0xf0: 928 masklen += 4; 929 break; 930 case 0xe0: 931 masklen += 3; 932 break; 933 case 0xc0: 934 masklen += 2; 935 break; 936 case 0x80: 937 masklen += 1; 938 break; 939 case 0x00: 940 break; 941 default: 942 illegal ++; 943 break; 944 } 945 } 946 if (illegal) 947 fprintf(stderr, "illegal prefixlen\n"); 948 } 949 else 950 masklen = 128; 951 952 if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr)) 953 return("default"); 954 955 if (numeric_addr) 956 flag |= NI_NUMERICHOST; 957 getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line), 958 NULL, 0, flag); 959 960 if (numeric_addr) 961 sprintf(&line[strlen(line)], "/%d", masklen); 962 963 return line; 964 } 965 966 char * 967 routename6(struct sockaddr_in6 *sa6) 968 { 969 static char line[MAXHOSTNAMELEN]; 970 int flag = NI_WITHSCOPEID; 971 /* use local variable for safety */ 972 struct sockaddr_in6 sa6_local = {AF_INET6, sizeof(sa6_local),}; 973 974 sa6_local.sin6_addr = sa6->sin6_addr; 975 sa6_local.sin6_scope_id = sa6->sin6_scope_id; 976 977 if (numeric_addr) 978 flag |= NI_NUMERICHOST; 979 980 getnameinfo((struct sockaddr *)&sa6_local, sa6_local.sin6_len, 981 line, sizeof(line), NULL, 0, flag); 982 983 return line; 984 } 985 #endif /*INET6*/ 986 987 /* 988 * Print routing statistics 989 */ 990 void 991 rt_stats(u_long rtsaddr, u_long rttaddr) 992 { 993 struct rtstat rtstat; 994 int rttrash; 995 996 if (rtsaddr == 0) { 997 printf("rtstat: symbol not in namelist\n"); 998 return; 999 } 1000 if (rttaddr == 0) { 1001 printf("rttrash: symbol not in namelist\n"); 1002 return; 1003 } 1004 kread(rtsaddr, (char *)&rtstat, sizeof (rtstat)); 1005 kread(rttaddr, (char *)&rttrash, sizeof (rttrash)); 1006 printf("routing:\n"); 1007 1008 #define p(f, m) if (rtstat.f || sflag <= 1) \ 1009 printf(m, rtstat.f, plural(rtstat.f)) 1010 1011 p(rts_badredirect, "\t%u bad routing redirect%s\n"); 1012 p(rts_dynamic, "\t%u dynamically created route%s\n"); 1013 p(rts_newgateway, "\t%u new gateway%s due to redirects\n"); 1014 p(rts_unreach, "\t%u destination%s found unreachable\n"); 1015 p(rts_wildcard, "\t%u use%s of a wildcard route\n"); 1016 #undef p 1017 1018 if (rttrash || sflag <= 1) 1019 printf("\t%u route%s not in table but not freed\n", 1020 rttrash, plural(rttrash)); 1021 } 1022 1023 char * 1024 ipx_print(struct sockaddr *sa) 1025 { 1026 u_short port; 1027 struct servent *sp = 0; 1028 const char *net = "", *host = ""; 1029 char *p; 1030 u_char *q; 1031 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 1032 static char mybuf[50]; 1033 char cport[10], chost[15], cnet[15]; 1034 1035 port = ntohs(work.x_port); 1036 1037 if (ipx_nullnet(work) && ipx_nullhost(work)) { 1038 1039 if (port) { 1040 if (sp) 1041 sprintf(mybuf, "*.%s", sp->s_name); 1042 else 1043 sprintf(mybuf, "*.%x", port); 1044 } else 1045 sprintf(mybuf, "*.*"); 1046 1047 return (mybuf); 1048 } 1049 1050 if (ipx_wildnet(work)) 1051 net = "any"; 1052 else if (ipx_nullnet(work)) 1053 net = "*"; 1054 else { 1055 q = work.x_net.c_net; 1056 sprintf(cnet, "%02x%02x%02x%02x", 1057 q[0], q[1], q[2], q[3]); 1058 for (p = cnet; *p == '0' && p < cnet + 8; p++) 1059 continue; 1060 net = p; 1061 } 1062 1063 if (ipx_wildhost(work)) 1064 host = "any"; 1065 else if (ipx_nullhost(work)) 1066 host = "*"; 1067 else { 1068 q = work.x_host.c_host; 1069 sprintf(chost, "%02x%02x%02x%02x%02x%02x", 1070 q[0], q[1], q[2], q[3], q[4], q[5]); 1071 for (p = chost; *p == '0' && p < chost + 12; p++) 1072 continue; 1073 host = p; 1074 } 1075 1076 if (port) { 1077 if (strcmp(host, "*") == 0) 1078 host = ""; 1079 if (sp) 1080 snprintf(cport, sizeof(cport), 1081 "%s%s", *host ? "." : "", sp->s_name); 1082 else 1083 snprintf(cport, sizeof(cport), 1084 "%s%x", *host ? "." : "", port); 1085 } else 1086 *cport = 0; 1087 1088 snprintf(mybuf, sizeof(mybuf), "%s.%s%s", net, host, cport); 1089 return(mybuf); 1090 } 1091 1092 char * 1093 ipx_phost(struct sockaddr *sa) 1094 { 1095 struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa; 1096 struct sockaddr_ipx work; 1097 static union ipx_net ipx_zeronet; 1098 char *p; 1099 struct ipx_addr in; 1100 1101 work = *sipx; 1102 in = work.sipx_addr; 1103 1104 work.sipx_addr.x_port = 0; 1105 work.sipx_addr.x_net = ipx_zeronet; 1106 p = ipx_print((struct sockaddr *)&work); 1107 if (strncmp("*.", p, 2) == 0) p += 2; 1108 1109 return(p); 1110 } 1111 1112 void 1113 upHex(char *p0) 1114 { 1115 char *p = p0; 1116 1117 for (; *p; p++) 1118 switch (*p) { 1119 1120 case 'a': 1121 case 'b': 1122 case 'c': 1123 case 'd': 1124 case 'e': 1125 case 'f': 1126 *p += ('A' - 'a'); 1127 break; 1128 } 1129 } 1130