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 #if 0 35 #ifndef lint 36 static char sccsid[] = "From: @(#)route.c 8.6 (Berkeley) 4/28/95"; 37 #endif /* not lint */ 38 #endif 39 40 #include <sys/cdefs.h> 41 __FBSDID("$FreeBSD$"); 42 43 #include <sys/param.h> 44 #include <sys/protosw.h> 45 #include <sys/socket.h> 46 #include <sys/time.h> 47 48 #include <net/ethernet.h> 49 #include <net/if.h> 50 #include <net/if_var.h> 51 #include <net/if_dl.h> 52 #include <net/if_types.h> 53 #include <net/radix.h> 54 #include <net/route.h> 55 56 #include <netinet/in.h> 57 #include <netipx/ipx.h> 58 #include <netatalk/at.h> 59 #include <netgraph/ng_socket.h> 60 61 #include <sys/sysctl.h> 62 63 #include <arpa/inet.h> 64 #include <libutil.h> 65 #include <netdb.h> 66 #include <stdint.h> 67 #include <stdio.h> 68 #include <stdlib.h> 69 #include <string.h> 70 #include <sysexits.h> 71 #include <unistd.h> 72 #include <err.h> 73 #include "netstat.h" 74 75 #define kget(p, d) (kread((u_long)(p), (char *)&(d), sizeof (d))) 76 77 /* 78 * Definitions for showing gateway flags. 79 */ 80 struct bits { 81 u_long b_mask; 82 char b_val; 83 } bits[] = { 84 { RTF_UP, 'U' }, 85 { RTF_GATEWAY, 'G' }, 86 { RTF_HOST, 'H' }, 87 { RTF_REJECT, 'R' }, 88 { RTF_DYNAMIC, 'D' }, 89 { RTF_MODIFIED, 'M' }, 90 { RTF_DONE, 'd' }, /* Completed -- for routing messages only */ 91 { RTF_CLONING, 'C' }, 92 { RTF_XRESOLVE, 'X' }, 93 { RTF_LLINFO, 'L' }, 94 { RTF_STATIC, 'S' }, 95 { RTF_PROTO1, '1' }, 96 { RTF_PROTO2, '2' }, 97 { RTF_WASCLONED,'W' }, 98 { RTF_PRCLONING,'c' }, 99 { RTF_PROTO3, '3' }, 100 { RTF_BLACKHOLE,'B' }, 101 { RTF_BROADCAST,'b' }, 102 { 0 , 0 } 103 }; 104 105 typedef union { 106 long dummy; /* Helps align structure. */ 107 struct sockaddr u_sa; 108 u_short u_data[128]; 109 } sa_u; 110 111 static sa_u pt_u; 112 113 int do_rtent = 0; 114 struct rtentry rtentry; 115 struct radix_node rnode; 116 struct radix_mask rmask; 117 struct radix_node_head *rt_tables[AF_MAX+1]; 118 119 int NewTree = 0; 120 121 struct timespec uptime; 122 123 static struct sockaddr *kgetsa (struct sockaddr *); 124 static void size_cols (int ef, struct radix_node *rn); 125 static void size_cols_tree (struct radix_node *rn); 126 static void size_cols_rtentry (struct rtentry *rt); 127 static void p_tree (struct radix_node *); 128 static void p_rtnode (void); 129 static void ntreestuff (void); 130 static void np_rtentry (struct rt_msghdr *); 131 static void p_sockaddr (struct sockaddr *, struct sockaddr *, int, int); 132 static const char *fmt_sockaddr (struct sockaddr *sa, struct sockaddr *mask, 133 int flags); 134 static void p_flags (int, const char *); 135 static const char *fmt_flags(int f); 136 static void p_rtentry (struct rtentry *); 137 static void domask (char *, u_long, u_long); 138 139 /* 140 * Print routing tables. 141 */ 142 void 143 routepr(u_long rtree) 144 { 145 struct radix_node_head *rnh, head; 146 int i; 147 148 /* 149 * Since kernel & userland use different timebase 150 * (time_uptime vs time_second) and we are reading kernel memory 151 * directly we should do rt_rmx.rmx_expire --> expire_time conversion. 152 */ 153 if (clock_gettime(CLOCK_UPTIME, &uptime) < 0) 154 err(EX_OSERR, "clock_gettime() failed"); 155 156 printf("Routing tables\n"); 157 158 if (Aflag == 0 && NewTree) 159 ntreestuff(); 160 else { 161 if (rtree == 0) { 162 printf("rt_tables: symbol not in namelist\n"); 163 return; 164 } 165 166 kget(rtree, rt_tables); 167 for (i = 0; i <= AF_MAX; i++) { 168 if ((rnh = rt_tables[i]) == 0) 169 continue; 170 kget(rnh, head); 171 if (i == AF_UNSPEC) { 172 if (Aflag && af == 0) { 173 printf("Netmasks:\n"); 174 p_tree(head.rnh_treetop); 175 } 176 } else if (af == AF_UNSPEC || af == i) { 177 size_cols(i, head.rnh_treetop); 178 pr_family(i); 179 do_rtent = 1; 180 pr_rthdr(i); 181 p_tree(head.rnh_treetop); 182 } 183 } 184 } 185 } 186 187 /* 188 * Print address family header before a section of the routing table. 189 */ 190 void 191 pr_family(int af1) 192 { 193 const char *afname; 194 195 switch (af1) { 196 case AF_INET: 197 afname = "Internet"; 198 break; 199 #ifdef INET6 200 case AF_INET6: 201 afname = "Internet6"; 202 break; 203 #endif /*INET6*/ 204 case AF_IPX: 205 afname = "IPX"; 206 break; 207 case AF_ISO: 208 afname = "ISO"; 209 break; 210 case AF_APPLETALK: 211 afname = "AppleTalk"; 212 break; 213 case AF_CCITT: 214 afname = "X.25"; 215 break; 216 case AF_NETGRAPH: 217 afname = "Netgraph"; 218 break; 219 default: 220 afname = NULL; 221 break; 222 } 223 if (afname) 224 printf("\n%s:\n", afname); 225 else 226 printf("\nProtocol Family %d:\n", af1); 227 } 228 229 /* column widths; each followed by one space */ 230 #ifndef INET6 231 #define WID_DST_DEFAULT(af) 18 /* width of destination column */ 232 #define WID_GW_DEFAULT(af) 18 /* width of gateway column */ 233 #define WID_IF_DEFAULT(af) (Wflag ? 8 : 6) /* width of netif column */ 234 #else 235 #define WID_DST_DEFAULT(af) \ 236 ((af) == AF_INET6 ? (numeric_addr ? 33: 18) : 18) 237 #define WID_GW_DEFAULT(af) \ 238 ((af) == AF_INET6 ? (numeric_addr ? 29 : 18) : 18) 239 #define WID_IF_DEFAULT(af) ((af) == AF_INET6 ? 8 : (Wflag ? 8 : 6)) 240 #endif /*INET6*/ 241 242 static int wid_dst; 243 static int wid_gw; 244 static int wid_flags; 245 static int wid_refs; 246 static int wid_use; 247 static int wid_mtu; 248 static int wid_if; 249 static int wid_expire; 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; 262 263 if (Wflag) 264 size_cols_tree(rn); 265 } 266 267 static void 268 size_cols_tree(struct radix_node *rn) 269 { 270 again: 271 kget(rn, rnode); 272 if (rnode.rn_bit < 0) { 273 if ((rnode.rn_flags & RNF_ROOT) == 0) { 274 kget(rn, rtentry); 275 size_cols_rtentry(&rtentry); 276 } 277 if ((rn = rnode.rn_dupedkey)) 278 goto again; 279 } else { 280 rn = rnode.rn_right; 281 size_cols_tree(rnode.rn_left); 282 size_cols_tree(rn); 283 } 284 } 285 286 static void 287 size_cols_rtentry(struct rtentry *rt) 288 { 289 static struct ifnet ifnet, *lastif; 290 struct rtentry parent; 291 static char buffer[100]; 292 const char *bp; 293 struct sockaddr *sa; 294 sa_u addr, mask; 295 int len; 296 297 /* 298 * Don't print protocol-cloned routes unless -a. 299 */ 300 if (rt->rt_flags & RTF_WASCLONED && !aflag) { 301 kget(rt->rt_parent, parent); 302 if (parent.rt_flags & RTF_PRCLONING) 303 return; 304 } 305 306 bzero(&addr, sizeof(addr)); 307 if ((sa = kgetsa(rt_key(rt)))) 308 bcopy(sa, &addr, sa->sa_len); 309 bzero(&mask, sizeof(mask)); 310 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 311 bcopy(sa, &mask, sa->sa_len); 312 bp = fmt_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags); 313 len = strlen(bp); 314 wid_dst = MAX(len, wid_dst); 315 316 bp = fmt_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST); 317 len = strlen(bp); 318 wid_gw = MAX(len, wid_gw); 319 320 bp = fmt_flags(rt->rt_flags); 321 len = strlen(bp); 322 wid_flags = MAX(len, wid_flags); 323 324 if (addr.u_sa.sa_family == AF_INET || Wflag) { 325 len = snprintf(buffer, sizeof(buffer), "%ld", rt->rt_refcnt); 326 wid_refs = MAX(len, wid_refs); 327 len = snprintf(buffer, sizeof(buffer), "%lu", rt->rt_use); 328 wid_use = MAX(len, wid_use); 329 if (Wflag && rt->rt_rmx.rmx_mtu != 0) { 330 len = snprintf(buffer, sizeof(buffer), 331 "%lu", rt->rt_rmx.rmx_mtu); 332 wid_mtu = MAX(len, wid_mtu); 333 } 334 } 335 if (rt->rt_ifp) { 336 if (rt->rt_ifp != lastif) { 337 kget(rt->rt_ifp, ifnet); 338 lastif = rt->rt_ifp; 339 len = strlen(ifnet.if_xname); 340 wid_if = MAX(len, wid_if); 341 } 342 if (rt->rt_rmx.rmx_expire) { 343 time_t expire_time; 344 345 if ((expire_time = 346 rt->rt_rmx.rmx_expire - uptime.tv_sec) > 0) { 347 len = snprintf(buffer, sizeof(buffer), "%d", 348 (int)expire_time); 349 wid_expire = MAX(len, wid_expire); 350 } 351 } 352 } 353 } 354 355 356 /* 357 * Print header for routing table columns. 358 */ 359 void 360 pr_rthdr(int af1) 361 { 362 363 if (Aflag) 364 printf("%-8.8s ","Address"); 365 if (af1 == AF_INET || Wflag) { 366 if (Wflag) { 367 printf("%-*.*s %-*.*s %-*.*s %*.*s %*.*s %*.*s %*.*s %*s\n", 368 wid_dst, wid_dst, "Destination", 369 wid_gw, wid_gw, "Gateway", 370 wid_flags, wid_flags, "Flags", 371 wid_refs, wid_refs, "Refs", 372 wid_use, wid_use, "Use", 373 wid_mtu, wid_mtu, "Mtu", 374 wid_if, wid_if, "Netif", 375 wid_expire, "Expire"); 376 } else { 377 printf("%-*.*s %-*.*s %-*.*s %*.*s %*.*s %*.*s %*s\n", 378 wid_dst, wid_dst, "Destination", 379 wid_gw, wid_gw, "Gateway", 380 wid_flags, wid_flags, "Flags", 381 wid_refs, wid_refs, "Refs", 382 wid_use, wid_use, "Use", 383 wid_if, wid_if, "Netif", 384 wid_expire, "Expire"); 385 } 386 } else { 387 printf("%-*.*s %-*.*s %-*.*s %*.*s %*s\n", 388 wid_dst, wid_dst, "Destination", 389 wid_gw, wid_gw, "Gateway", 390 wid_flags, wid_flags, "Flags", 391 wid_if, wid_if, "Netif", 392 wid_expire, "Expire"); 393 } 394 } 395 396 static struct sockaddr * 397 kgetsa(struct sockaddr *dst) 398 { 399 400 kget(dst, pt_u.u_sa); 401 if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa)) 402 kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len); 403 return (&pt_u.u_sa); 404 } 405 406 static void 407 p_tree(struct radix_node *rn) 408 { 409 410 again: 411 kget(rn, rnode); 412 if (rnode.rn_bit < 0) { 413 if (Aflag) 414 printf("%-8.8lx ", (u_long)rn); 415 if (rnode.rn_flags & RNF_ROOT) { 416 if (Aflag) 417 printf("(root node)%s", 418 rnode.rn_dupedkey ? " =>\n" : "\n"); 419 } else if (do_rtent) { 420 kget(rn, rtentry); 421 p_rtentry(&rtentry); 422 if (Aflag) 423 p_rtnode(); 424 } else { 425 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key), 426 NULL, 0, 44); 427 putchar('\n'); 428 } 429 if ((rn = rnode.rn_dupedkey)) 430 goto again; 431 } else { 432 if (Aflag && do_rtent) { 433 printf("%-8.8lx ", (u_long)rn); 434 p_rtnode(); 435 } 436 rn = rnode.rn_right; 437 p_tree(rnode.rn_left); 438 p_tree(rn); 439 } 440 } 441 442 char nbuf[20]; 443 444 static void 445 p_rtnode(void) 446 { 447 struct radix_mask *rm = rnode.rn_mklist; 448 449 if (rnode.rn_bit < 0) { 450 if (rnode.rn_mask) { 451 printf("\t mask "); 452 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask), 453 NULL, 0, -1); 454 } else if (rm == 0) 455 return; 456 } else { 457 sprintf(nbuf, "(%d)", rnode.rn_bit); 458 printf("%6.6s %8.8lx : %8.8lx", nbuf, (u_long)rnode.rn_left, (u_long)rnode.rn_right); 459 } 460 while (rm) { 461 kget(rm, rmask); 462 sprintf(nbuf, " %d refs, ", rmask.rm_refs); 463 printf(" mk = %8.8lx {(%d),%s", 464 (u_long)rm, -1 - rmask.rm_bit, rmask.rm_refs ? nbuf : " "); 465 if (rmask.rm_flags & RNF_NORMAL) { 466 struct radix_node rnode_aux; 467 printf(" <normal>, "); 468 kget(rmask.rm_leaf, rnode_aux); 469 p_sockaddr(kgetsa((struct sockaddr *)rnode_aux.rn_mask), 470 NULL, 0, -1); 471 } else 472 p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 473 NULL, 0, -1); 474 putchar('}'); 475 if ((rm = rmask.rm_mklist)) 476 printf(" ->"); 477 } 478 putchar('\n'); 479 } 480 481 static void 482 ntreestuff(void) 483 { 484 size_t needed; 485 int mib[6]; 486 char *buf, *next, *lim; 487 struct rt_msghdr *rtm; 488 489 mib[0] = CTL_NET; 490 mib[1] = PF_ROUTE; 491 mib[2] = 0; 492 mib[3] = 0; 493 mib[4] = NET_RT_DUMP; 494 mib[5] = 0; 495 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) { 496 err(1, "sysctl: net.route.0.0.dump estimate"); 497 } 498 499 if ((buf = malloc(needed)) == 0) { 500 errx(2, "malloc(%lu)", (unsigned long)needed); 501 } 502 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { 503 err(1, "sysctl: net.route.0.0.dump"); 504 } 505 lim = buf + needed; 506 for (next = buf; next < lim; next += rtm->rtm_msglen) { 507 rtm = (struct rt_msghdr *)next; 508 np_rtentry(rtm); 509 } 510 } 511 512 static void 513 np_rtentry(struct rt_msghdr *rtm) 514 { 515 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 516 #ifdef notdef 517 static int masks_done, banner_printed; 518 #endif 519 static int old_af; 520 int af1 = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST; 521 522 #ifdef notdef 523 /* for the moment, netmasks are skipped over */ 524 if (!banner_printed) { 525 printf("Netmasks:\n"); 526 banner_printed = 1; 527 } 528 if (masks_done == 0) { 529 if (rtm->rtm_addrs != RTA_DST ) { 530 masks_done = 1; 531 af1 = sa->sa_family; 532 } 533 } else 534 #endif 535 af1 = sa->sa_family; 536 if (af1 != old_af) { 537 pr_family(af1); 538 old_af = af1; 539 } 540 if (rtm->rtm_addrs == RTA_DST) 541 p_sockaddr(sa, NULL, 0, 36); 542 else { 543 p_sockaddr(sa, NULL, rtm->rtm_flags, 16); 544 sa = (struct sockaddr *)(SA_SIZE(sa) + (char *)sa); 545 p_sockaddr(sa, NULL, 0, 18); 546 } 547 p_flags(rtm->rtm_flags & interesting, "%-6.6s "); 548 putchar('\n'); 549 } 550 551 static void 552 p_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags, int width) 553 { 554 const char *cp; 555 556 cp = fmt_sockaddr(sa, mask, flags); 557 558 if (width < 0 ) 559 printf("%s ", cp); 560 else { 561 if (numeric_addr) 562 printf("%-*s ", width, cp); 563 else 564 printf("%-*.*s ", width, width, cp); 565 } 566 } 567 568 static const char * 569 fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags) 570 { 571 static char workbuf[128]; 572 const char *cp; 573 574 switch(sa->sa_family) { 575 case AF_INET: 576 { 577 struct sockaddr_in *sockin = (struct sockaddr_in *)sa; 578 579 if ((sockin->sin_addr.s_addr == INADDR_ANY) && 580 mask && 581 ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr) 582 ==0L) 583 cp = "default" ; 584 else if (flags & RTF_HOST) 585 cp = routename(sockin->sin_addr.s_addr); 586 else if (mask) 587 cp = netname(sockin->sin_addr.s_addr, 588 ntohl(((struct sockaddr_in *)mask) 589 ->sin_addr.s_addr)); 590 else 591 cp = netname(sockin->sin_addr.s_addr, 0L); 592 break; 593 } 594 595 #ifdef INET6 596 case AF_INET6: 597 { 598 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa; 599 struct in6_addr *in6 = &sa6->sin6_addr; 600 601 /* 602 * XXX: This is a special workaround for KAME kernels. 603 * sin6_scope_id field of SA should be set in the future. 604 */ 605 if (IN6_IS_ADDR_LINKLOCAL(in6) || 606 IN6_IS_ADDR_MC_LINKLOCAL(in6)) { 607 /* XXX: override is ok? */ 608 sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]); 609 *(u_short *)&in6->s6_addr[2] = 0; 610 } 611 612 if (flags & RTF_HOST) 613 cp = routename6(sa6); 614 else if (mask) 615 cp = netname6(sa6, 616 &((struct sockaddr_in6 *)mask)->sin6_addr); 617 else { 618 cp = netname6(sa6, NULL); 619 } 620 break; 621 } 622 #endif /*INET6*/ 623 624 case AF_IPX: 625 { 626 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 627 if (ipx_nullnet(satoipx_addr(work))) 628 cp = "default"; 629 else 630 cp = ipx_print(sa); 631 break; 632 } 633 case AF_APPLETALK: 634 { 635 if (!(flags & RTF_HOST) && mask) 636 cp = atalk_print2(sa,mask,9); 637 else 638 cp = atalk_print(sa,11); 639 break; 640 } 641 case AF_NETGRAPH: 642 { 643 strlcpy(workbuf, ((struct sockaddr_ng *)sa)->sg_data, 644 sizeof(workbuf)); 645 cp = workbuf; 646 break; 647 } 648 649 case AF_LINK: 650 { 651 struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa; 652 653 if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && 654 sdl->sdl_slen == 0) { 655 (void) sprintf(workbuf, "link#%d", sdl->sdl_index); 656 cp = workbuf; 657 } else 658 switch (sdl->sdl_type) { 659 660 case IFT_ETHER: 661 case IFT_L2VLAN: 662 if (sdl->sdl_alen == ETHER_ADDR_LEN) { 663 cp = ether_ntoa((struct ether_addr *) 664 (sdl->sdl_data + sdl->sdl_nlen)); 665 break; 666 } 667 /* FALLTHROUGH */ 668 default: 669 cp = link_ntoa(sdl); 670 break; 671 } 672 break; 673 } 674 675 default: 676 { 677 u_char *s = (u_char *)sa->sa_data, *slim; 678 char *cq, *cqlim; 679 680 cq = workbuf; 681 slim = sa->sa_len + (u_char *) sa; 682 cqlim = cq + sizeof(workbuf) - 6; 683 cq += sprintf(cq, "(%d)", sa->sa_family); 684 while (s < slim && cq < cqlim) { 685 cq += sprintf(cq, " %02x", *s++); 686 if (s < slim) 687 cq += sprintf(cq, "%02x", *s++); 688 } 689 cp = workbuf; 690 } 691 } 692 693 return (cp); 694 } 695 696 static void 697 p_flags(int f, const char *format) 698 { 699 printf(format, fmt_flags(f)); 700 } 701 702 static const char * 703 fmt_flags(int f) 704 { 705 static char name[33]; 706 char *flags; 707 struct bits *p = bits; 708 709 for (flags = name; p->b_mask; p++) 710 if (p->b_mask & f) 711 *flags++ = p->b_val; 712 *flags = '\0'; 713 return (name); 714 } 715 716 static void 717 p_rtentry(struct rtentry *rt) 718 { 719 static struct ifnet ifnet, *lastif; 720 struct rtentry parent; 721 static char buffer[128]; 722 static char prettyname[128]; 723 struct sockaddr *sa; 724 sa_u addr, mask; 725 726 /* 727 * Don't print protocol-cloned routes unless -a. 728 */ 729 if (rt->rt_flags & RTF_WASCLONED && !aflag) { 730 kget(rt->rt_parent, parent); 731 if (parent.rt_flags & RTF_PRCLONING) 732 return; 733 } 734 735 bzero(&addr, sizeof(addr)); 736 if ((sa = kgetsa(rt_key(rt)))) 737 bcopy(sa, &addr, sa->sa_len); 738 bzero(&mask, sizeof(mask)); 739 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 740 bcopy(sa, &mask, sa->sa_len); 741 p_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags, wid_dst); 742 p_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST, wid_gw); 743 snprintf(buffer, sizeof(buffer), "%%-%d.%ds ", wid_flags, wid_flags); 744 p_flags(rt->rt_flags, buffer); 745 if (addr.u_sa.sa_family == AF_INET || Wflag) { 746 printf("%*ld %*lu ", wid_refs, rt->rt_refcnt, 747 wid_use, rt->rt_use); 748 if (Wflag) { 749 if (rt->rt_rmx.rmx_mtu != 0) 750 printf("%*lu ", wid_mtu, rt->rt_rmx.rmx_mtu); 751 else 752 printf("%*s ", wid_mtu, ""); 753 } 754 } 755 if (rt->rt_ifp) { 756 if (rt->rt_ifp != lastif) { 757 kget(rt->rt_ifp, ifnet); 758 lastif = rt->rt_ifp; 759 strlcpy(prettyname, ifnet.if_xname, sizeof(prettyname)); 760 } 761 printf("%*.*s", wid_if, wid_if, prettyname); 762 if (rt->rt_rmx.rmx_expire) { 763 time_t expire_time; 764 765 if ((expire_time = 766 rt->rt_rmx.rmx_expire - uptime.tv_sec) > 0) 767 printf(" %*d", wid_expire, (int)expire_time); 768 } 769 if (rt->rt_nodes[0].rn_dupedkey) 770 printf(" =>"); 771 } 772 putchar('\n'); 773 } 774 775 char * 776 routename(u_long in) 777 { 778 char *cp; 779 static char line[MAXHOSTNAMELEN]; 780 struct hostent *hp; 781 782 cp = 0; 783 if (!numeric_addr) { 784 hp = gethostbyaddr((char *)&in, sizeof (struct in_addr), 785 AF_INET); 786 if (hp) { 787 cp = hp->h_name; 788 trimdomain(cp, strlen(cp)); 789 } 790 } 791 if (cp) { 792 strncpy(line, cp, sizeof(line) - 1); 793 line[sizeof(line) - 1] = '\0'; 794 } else { 795 #define C(x) ((x) & 0xff) 796 in = ntohl(in); 797 sprintf(line, "%lu.%lu.%lu.%lu", 798 C(in >> 24), C(in >> 16), C(in >> 8), C(in)); 799 } 800 return (line); 801 } 802 803 #define NSHIFT(m) ( \ 804 (m) == IN_CLASSA_NET ? IN_CLASSA_NSHIFT : \ 805 (m) == IN_CLASSB_NET ? IN_CLASSB_NSHIFT : \ 806 (m) == IN_CLASSC_NET ? IN_CLASSC_NSHIFT : \ 807 0) 808 809 static void 810 domask(char *dst, u_long addr, u_long mask) 811 { 812 int b, i; 813 814 if (mask == 0 || (!numeric_addr && NSHIFT(mask) != 0)) { 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 i; 848 849 i = ntohl(in); 850 if (!numeric_addr && i) { 851 np = getnetbyaddr(i >> NSHIFT(mask), AF_INET); 852 if (np != NULL) { 853 cp = np->n_name; 854 trimdomain(cp, strlen(cp)); 855 } 856 } 857 if (cp != NULL) { 858 strncpy(line, cp, sizeof(line) - 1); 859 line[sizeof(line) - 1] = '\0'; 860 } else { 861 inet_ntop(AF_INET, (char *)&in, line, sizeof(line) - 1); 862 } 863 domask(line + strlen(line), i, mask); 864 return (line); 865 } 866 867 #undef NSHIFT 868 869 #ifdef INET6 870 const char * 871 netname6(struct sockaddr_in6 *sa6, struct in6_addr *mask) 872 { 873 static char line[MAXHOSTNAMELEN]; 874 u_char *p = (u_char *)mask; 875 u_char *lim; 876 int masklen, illegal = 0, flag = 0; 877 878 if (mask) { 879 for (masklen = 0, lim = p + 16; p < lim; p++) { 880 switch (*p) { 881 case 0xff: 882 masklen += 8; 883 break; 884 case 0xfe: 885 masklen += 7; 886 break; 887 case 0xfc: 888 masklen += 6; 889 break; 890 case 0xf8: 891 masklen += 5; 892 break; 893 case 0xf0: 894 masklen += 4; 895 break; 896 case 0xe0: 897 masklen += 3; 898 break; 899 case 0xc0: 900 masklen += 2; 901 break; 902 case 0x80: 903 masklen += 1; 904 break; 905 case 0x00: 906 break; 907 default: 908 illegal ++; 909 break; 910 } 911 } 912 if (illegal) 913 fprintf(stderr, "illegal prefixlen\n"); 914 } 915 else 916 masklen = 128; 917 918 if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr)) 919 return("default"); 920 921 if (numeric_addr) 922 flag |= NI_NUMERICHOST; 923 getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line), 924 NULL, 0, flag); 925 926 if (numeric_addr) 927 sprintf(&line[strlen(line)], "/%d", masklen); 928 929 return line; 930 } 931 932 char * 933 routename6(struct sockaddr_in6 *sa6) 934 { 935 static char line[MAXHOSTNAMELEN]; 936 int flag = 0; 937 /* use local variable for safety */ 938 struct sockaddr_in6 sa6_local; 939 940 sa6_local.sin6_family = AF_INET6; 941 sa6_local.sin6_len = sizeof(sa6_local); 942 sa6_local.sin6_addr = sa6->sin6_addr; 943 sa6_local.sin6_scope_id = sa6->sin6_scope_id; 944 945 if (numeric_addr) 946 flag |= NI_NUMERICHOST; 947 948 getnameinfo((struct sockaddr *)&sa6_local, sa6_local.sin6_len, 949 line, sizeof(line), NULL, 0, flag); 950 951 return line; 952 } 953 #endif /*INET6*/ 954 955 /* 956 * Print routing statistics 957 */ 958 void 959 rt_stats(u_long rtsaddr, u_long rttaddr) 960 { 961 struct rtstat rtstat; 962 int rttrash; 963 964 if (rtsaddr == 0) { 965 printf("rtstat: symbol not in namelist\n"); 966 return; 967 } 968 if (rttaddr == 0) { 969 printf("rttrash: symbol not in namelist\n"); 970 return; 971 } 972 kread(rtsaddr, (char *)&rtstat, sizeof (rtstat)); 973 kread(rttaddr, (char *)&rttrash, sizeof (rttrash)); 974 printf("routing:\n"); 975 976 #define p(f, m) if (rtstat.f || sflag <= 1) \ 977 printf(m, rtstat.f, plural(rtstat.f)) 978 979 p(rts_badredirect, "\t%u bad routing redirect%s\n"); 980 p(rts_dynamic, "\t%u dynamically created route%s\n"); 981 p(rts_newgateway, "\t%u new gateway%s due to redirects\n"); 982 p(rts_unreach, "\t%u destination%s found unreachable\n"); 983 p(rts_wildcard, "\t%u use%s of a wildcard route\n"); 984 #undef p 985 986 if (rttrash || sflag <= 1) 987 printf("\t%u route%s not in table but not freed\n", 988 rttrash, plural(rttrash)); 989 } 990 991 char * 992 ipx_print(struct sockaddr *sa) 993 { 994 u_short port; 995 struct servent *sp = 0; 996 const char *net = "", *host = ""; 997 char *p; 998 u_char *q; 999 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 1000 static char mybuf[50]; 1001 char cport[10], chost[15], cnet[15]; 1002 1003 port = ntohs(work.x_port); 1004 1005 if (ipx_nullnet(work) && ipx_nullhost(work)) { 1006 1007 if (port) { 1008 if (sp) 1009 sprintf(mybuf, "*.%s", sp->s_name); 1010 else 1011 sprintf(mybuf, "*.%x", port); 1012 } else 1013 sprintf(mybuf, "*.*"); 1014 1015 return (mybuf); 1016 } 1017 1018 if (ipx_wildnet(work)) 1019 net = "any"; 1020 else if (ipx_nullnet(work)) 1021 net = "*"; 1022 else { 1023 q = work.x_net.c_net; 1024 sprintf(cnet, "%02x%02x%02x%02x", 1025 q[0], q[1], q[2], q[3]); 1026 for (p = cnet; *p == '0' && p < cnet + 8; p++) 1027 continue; 1028 net = p; 1029 } 1030 1031 if (ipx_wildhost(work)) 1032 host = "any"; 1033 else if (ipx_nullhost(work)) 1034 host = "*"; 1035 else { 1036 q = work.x_host.c_host; 1037 sprintf(chost, "%02x%02x%02x%02x%02x%02x", 1038 q[0], q[1], q[2], q[3], q[4], q[5]); 1039 for (p = chost; *p == '0' && p < chost + 12; p++) 1040 continue; 1041 host = p; 1042 } 1043 1044 if (port) { 1045 if (strcmp(host, "*") == 0) 1046 host = ""; 1047 if (sp) 1048 snprintf(cport, sizeof(cport), 1049 "%s%s", *host ? "." : "", sp->s_name); 1050 else 1051 snprintf(cport, sizeof(cport), 1052 "%s%x", *host ? "." : "", port); 1053 } else 1054 *cport = 0; 1055 1056 snprintf(mybuf, sizeof(mybuf), "%s.%s%s", net, host, cport); 1057 return(mybuf); 1058 } 1059 1060 char * 1061 ipx_phost(struct sockaddr *sa) 1062 { 1063 struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa; 1064 struct sockaddr_ipx work; 1065 static union ipx_net ipx_zeronet; 1066 char *p; 1067 struct ipx_addr in; 1068 1069 work = *sipx; 1070 in = work.sipx_addr; 1071 1072 work.sipx_addr.x_port = 0; 1073 work.sipx_addr.x_net = ipx_zeronet; 1074 p = ipx_print((struct sockaddr *)&work); 1075 if (strncmp("*.", p, 2) == 0) p += 2; 1076 1077 return(p); 1078 } 1079 1080 void 1081 upHex(char *p0) 1082 { 1083 char *p = p0; 1084 1085 for (; *p; p++) 1086 switch (*p) { 1087 1088 case 'a': 1089 case 'b': 1090 case 'c': 1091 case 'd': 1092 case 'e': 1093 case 'f': 1094 *p += ('A' - 'a'); 1095 break; 1096 } 1097 } 1098