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/socketvar.h> 47 #include <sys/time.h> 48 49 #include <net/ethernet.h> 50 #include <net/if.h> 51 #include <net/if_var.h> 52 #include <net/if_dl.h> 53 #include <net/if_types.h> 54 #include <net/radix.h> 55 #include <net/route.h> 56 57 #include <netinet/in.h> 58 #include <netipx/ipx.h> 59 #include <netatalk/at.h> 60 #include <netgraph/ng_socket.h> 61 62 #include <sys/sysctl.h> 63 64 #include <arpa/inet.h> 65 #include <libutil.h> 66 #include <netdb.h> 67 #include <stdint.h> 68 #include <stdio.h> 69 #include <stdlib.h> 70 #include <string.h> 71 #include <sysexits.h> 72 #include <unistd.h> 73 #include <err.h> 74 #include "netstat.h" 75 76 #define kget(p, d) (kread((u_long)(p), (char *)&(d), sizeof (d))) 77 78 /* 79 * Definitions for showing gateway flags. 80 */ 81 struct bits { 82 u_long b_mask; 83 char b_val; 84 } bits[] = { 85 { RTF_UP, 'U' }, 86 { RTF_GATEWAY, 'G' }, 87 { RTF_HOST, 'H' }, 88 { RTF_REJECT, 'R' }, 89 { RTF_DYNAMIC, 'D' }, 90 { RTF_MODIFIED, 'M' }, 91 { RTF_DONE, 'd' }, /* Completed -- for routing messages only */ 92 { RTF_CLONING, 'C' }, 93 { RTF_XRESOLVE, 'X' }, 94 { RTF_LLINFO, 'L' }, 95 { RTF_STATIC, 'S' }, 96 { RTF_PROTO1, '1' }, 97 { RTF_PROTO2, '2' }, 98 { RTF_WASCLONED,'W' }, 99 { RTF_PRCLONING,'c' }, 100 { RTF_PROTO3, '3' }, 101 { RTF_BLACKHOLE,'B' }, 102 { RTF_BROADCAST,'b' }, 103 { 0 , 0 } 104 }; 105 106 typedef union { 107 long dummy; /* Helps align structure. */ 108 struct sockaddr u_sa; 109 u_short u_data[128]; 110 } sa_u; 111 112 static sa_u pt_u; 113 114 int do_rtent = 0; 115 struct rtentry rtentry; 116 struct radix_node rnode; 117 struct radix_mask rmask; 118 struct radix_node_head *rt_tables[AF_MAX+1]; 119 120 int NewTree = 0; 121 122 struct timespec uptime; 123 124 static struct sockaddr *kgetsa(struct sockaddr *); 125 static void size_cols(int ef, struct radix_node *rn); 126 static void size_cols_tree(struct radix_node *rn); 127 static void size_cols_rtentry(struct rtentry *rt); 128 static void p_tree(struct radix_node *); 129 static void p_rtnode(void); 130 static void ntreestuff(void); 131 static void np_rtentry(struct rt_msghdr *); 132 static void p_sockaddr(struct sockaddr *, struct sockaddr *, int, int); 133 static const char *fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask, 134 int flags); 135 static void p_flags(int, const char *); 136 static const char *fmt_flags(int f); 137 static void p_rtentry(struct rtentry *); 138 static void domask(char *, in_addr_t, u_long); 139 140 /* 141 * Print routing tables. 142 */ 143 void 144 routepr(u_long rtree) 145 { 146 struct radix_node_head *rnh, head; 147 int i; 148 149 /* 150 * Since kernel & userland use different timebase 151 * (time_uptime vs time_second) and we are reading kernel memory 152 * directly we should do rt_rmx.rmx_expire --> expire_time conversion. 153 */ 154 if (clock_gettime(CLOCK_UPTIME, &uptime) < 0) 155 err(EX_OSERR, "clock_gettime() failed"); 156 157 printf("Routing tables\n"); 158 159 if (Aflag == 0 && NewTree) 160 ntreestuff(); 161 else { 162 if (rtree == 0) { 163 printf("rt_tables: symbol not in namelist\n"); 164 return; 165 } 166 167 if (kget(rtree, rt_tables) != 0) 168 return; 169 for (i = 0; i <= AF_MAX; i++) { 170 if ((rnh = rt_tables[i]) == 0) 171 continue; 172 if (kget(rnh, head) != 0) 173 continue; 174 if (i == AF_UNSPEC) { 175 if (Aflag && af == 0) { 176 printf("Netmasks:\n"); 177 p_tree(head.rnh_treetop); 178 } 179 } else if (af == AF_UNSPEC || af == i) { 180 size_cols(i, head.rnh_treetop); 181 pr_family(i); 182 do_rtent = 1; 183 pr_rthdr(i); 184 p_tree(head.rnh_treetop); 185 } 186 } 187 } 188 } 189 190 /* 191 * Print address family header before a section of the routing table. 192 */ 193 void 194 pr_family(int af1) 195 { 196 const char *afname; 197 198 switch (af1) { 199 case AF_INET: 200 afname = "Internet"; 201 break; 202 #ifdef INET6 203 case AF_INET6: 204 afname = "Internet6"; 205 break; 206 #endif /*INET6*/ 207 case AF_IPX: 208 afname = "IPX"; 209 break; 210 case AF_ISO: 211 afname = "ISO"; 212 break; 213 case AF_APPLETALK: 214 afname = "AppleTalk"; 215 break; 216 case AF_CCITT: 217 afname = "X.25"; 218 break; 219 case AF_NETGRAPH: 220 afname = "Netgraph"; 221 break; 222 default: 223 afname = NULL; 224 break; 225 } 226 if (afname) 227 printf("\n%s:\n", afname); 228 else 229 printf("\nProtocol Family %d:\n", af1); 230 } 231 232 /* column widths; each followed by one space */ 233 #ifndef INET6 234 #define WID_DST_DEFAULT(af) 18 /* width of destination column */ 235 #define WID_GW_DEFAULT(af) 18 /* width of gateway column */ 236 #define WID_IF_DEFAULT(af) (Wflag ? 8 : 6) /* width of netif column */ 237 #else 238 #define WID_DST_DEFAULT(af) \ 239 ((af) == AF_INET6 ? (numeric_addr ? 33: 18) : 18) 240 #define WID_GW_DEFAULT(af) \ 241 ((af) == AF_INET6 ? (numeric_addr ? 29 : 18) : 18) 242 #define WID_IF_DEFAULT(af) ((af) == AF_INET6 ? 8 : (Wflag ? 8 : 6)) 243 #endif /*INET6*/ 244 245 static int wid_dst; 246 static int wid_gw; 247 static int wid_flags; 248 static int wid_refs; 249 static int wid_use; 250 static int wid_mtu; 251 static int wid_if; 252 static int wid_expire; 253 254 static void 255 size_cols(int ef __unused, struct radix_node *rn) 256 { 257 wid_dst = WID_DST_DEFAULT(ef); 258 wid_gw = WID_GW_DEFAULT(ef); 259 wid_flags = 6; 260 wid_refs = 6; 261 wid_use = 8; 262 wid_mtu = 6; 263 wid_if = WID_IF_DEFAULT(ef); 264 wid_expire = 6; 265 266 if (Wflag) 267 size_cols_tree(rn); 268 } 269 270 static void 271 size_cols_tree(struct radix_node *rn) 272 { 273 again: 274 if (kget(rn, rnode) != 0) 275 return; 276 if (!(rnode.rn_flags & RNF_ACTIVE)) 277 return; 278 if (rnode.rn_bit < 0) { 279 if ((rnode.rn_flags & RNF_ROOT) == 0) { 280 if (kget(rn, rtentry) != 0) 281 return; 282 size_cols_rtentry(&rtentry); 283 } 284 if ((rn = rnode.rn_dupedkey)) 285 goto again; 286 } else { 287 rn = rnode.rn_right; 288 size_cols_tree(rnode.rn_left); 289 size_cols_tree(rn); 290 } 291 } 292 293 static void 294 size_cols_rtentry(struct rtentry *rt) 295 { 296 static struct ifnet ifnet, *lastif; 297 struct rtentry parent; 298 static char buffer[100]; 299 const char *bp; 300 struct sockaddr *sa; 301 sa_u addr, mask; 302 int len; 303 304 /* 305 * Don't print protocol-cloned routes unless -a. 306 */ 307 if (rt->rt_flags & RTF_WASCLONED && !aflag) { 308 if (kget(rt->rt_parent, parent) != 0) 309 return; 310 if (parent.rt_flags & RTF_PRCLONING) 311 return; 312 } 313 314 bzero(&addr, sizeof(addr)); 315 if ((sa = kgetsa(rt_key(rt)))) 316 bcopy(sa, &addr, sa->sa_len); 317 bzero(&mask, sizeof(mask)); 318 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 319 bcopy(sa, &mask, sa->sa_len); 320 bp = fmt_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags); 321 len = strlen(bp); 322 wid_dst = MAX(len, wid_dst); 323 324 bp = fmt_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST); 325 len = strlen(bp); 326 wid_gw = MAX(len, wid_gw); 327 328 bp = fmt_flags(rt->rt_flags); 329 len = strlen(bp); 330 wid_flags = MAX(len, wid_flags); 331 332 if (addr.u_sa.sa_family == AF_INET || Wflag) { 333 len = snprintf(buffer, sizeof(buffer), "%ld", rt->rt_refcnt); 334 wid_refs = MAX(len, wid_refs); 335 len = snprintf(buffer, sizeof(buffer), "%lu", rt->rt_use); 336 wid_use = MAX(len, wid_use); 337 if (Wflag && rt->rt_rmx.rmx_mtu != 0) { 338 len = snprintf(buffer, sizeof(buffer), 339 "%lu", rt->rt_rmx.rmx_mtu); 340 wid_mtu = MAX(len, wid_mtu); 341 } 342 } 343 if (rt->rt_ifp) { 344 if (rt->rt_ifp != lastif) { 345 if (kget(rt->rt_ifp, ifnet) == 0) 346 len = strlen(ifnet.if_xname); 347 else 348 len = strlen("---"); 349 lastif = rt->rt_ifp; 350 wid_if = MAX(len, wid_if); 351 } 352 if (rt->rt_rmx.rmx_expire) { 353 time_t expire_time; 354 355 if ((expire_time = 356 rt->rt_rmx.rmx_expire - uptime.tv_sec) > 0) { 357 len = snprintf(buffer, sizeof(buffer), "%d", 358 (int)expire_time); 359 wid_expire = MAX(len, wid_expire); 360 } 361 } 362 } 363 } 364 365 366 /* 367 * Print header for routing table columns. 368 */ 369 void 370 pr_rthdr(int af1) 371 { 372 373 if (Aflag) 374 printf("%-8.8s ","Address"); 375 if (af1 == AF_INET || Wflag) { 376 if (Wflag) { 377 printf("%-*.*s %-*.*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_mtu, wid_mtu, "Mtu", 384 wid_if, wid_if, "Netif", 385 wid_expire, "Expire"); 386 } else { 387 printf("%-*.*s %-*.*s %-*.*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_refs, wid_refs, "Refs", 392 wid_use, wid_use, "Use", 393 wid_if, wid_if, "Netif", 394 wid_expire, "Expire"); 395 } 396 } else { 397 printf("%-*.*s %-*.*s %-*.*s %*.*s %*s\n", 398 wid_dst, wid_dst, "Destination", 399 wid_gw, wid_gw, "Gateway", 400 wid_flags, wid_flags, "Flags", 401 wid_if, wid_if, "Netif", 402 wid_expire, "Expire"); 403 } 404 } 405 406 static struct sockaddr * 407 kgetsa(struct sockaddr *dst) 408 { 409 410 if (kget(dst, pt_u.u_sa) != 0) 411 return (NULL); 412 if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa)) 413 kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len); 414 return (&pt_u.u_sa); 415 } 416 417 static void 418 p_tree(struct radix_node *rn) 419 { 420 421 again: 422 if (kget(rn, rnode) != 0) 423 return; 424 if (!(rnode.rn_flags & RNF_ACTIVE)) 425 return; 426 if (rnode.rn_bit < 0) { 427 if (Aflag) 428 printf("%-8.8lx ", (u_long)rn); 429 if (rnode.rn_flags & RNF_ROOT) { 430 if (Aflag) 431 printf("(root node)%s", 432 rnode.rn_dupedkey ? " =>\n" : "\n"); 433 } else if (do_rtent) { 434 if (kget(rn, rtentry) == 0) { 435 p_rtentry(&rtentry); 436 if (Aflag) 437 p_rtnode(); 438 } 439 } else { 440 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key), 441 NULL, 0, 44); 442 putchar('\n'); 443 } 444 if ((rn = rnode.rn_dupedkey)) 445 goto again; 446 } else { 447 if (Aflag && do_rtent) { 448 printf("%-8.8lx ", (u_long)rn); 449 p_rtnode(); 450 } 451 rn = rnode.rn_right; 452 p_tree(rnode.rn_left); 453 p_tree(rn); 454 } 455 } 456 457 char nbuf[20]; 458 459 static void 460 p_rtnode(void) 461 { 462 struct radix_mask *rm = rnode.rn_mklist; 463 464 if (rnode.rn_bit < 0) { 465 if (rnode.rn_mask) { 466 printf("\t mask "); 467 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask), 468 NULL, 0, -1); 469 } else if (rm == 0) 470 return; 471 } else { 472 sprintf(nbuf, "(%d)", rnode.rn_bit); 473 printf("%6.6s %8.8lx : %8.8lx", nbuf, (u_long)rnode.rn_left, (u_long)rnode.rn_right); 474 } 475 while (rm) { 476 if (kget(rm, rmask) != 0) 477 break; 478 sprintf(nbuf, " %d refs, ", rmask.rm_refs); 479 printf(" mk = %8.8lx {(%d),%s", 480 (u_long)rm, -1 - rmask.rm_bit, rmask.rm_refs ? nbuf : " "); 481 if (rmask.rm_flags & RNF_NORMAL) { 482 struct radix_node rnode_aux; 483 printf(" <normal>, "); 484 if (kget(rmask.rm_leaf, rnode_aux) == 0) 485 p_sockaddr(kgetsa((struct sockaddr *)rnode_aux.rn_mask), 486 NULL, 0, -1); 487 else 488 p_sockaddr(NULL, NULL, 0, -1); 489 } else 490 p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 491 NULL, 0, -1); 492 putchar('}'); 493 if ((rm = rmask.rm_mklist)) 494 printf(" ->"); 495 } 496 putchar('\n'); 497 } 498 499 static void 500 ntreestuff(void) 501 { 502 size_t needed; 503 int mib[6]; 504 char *buf, *next, *lim; 505 struct rt_msghdr *rtm; 506 507 mib[0] = CTL_NET; 508 mib[1] = PF_ROUTE; 509 mib[2] = 0; 510 mib[3] = 0; 511 mib[4] = NET_RT_DUMP; 512 mib[5] = 0; 513 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) { 514 err(1, "sysctl: net.route.0.0.dump estimate"); 515 } 516 517 if ((buf = malloc(needed)) == 0) { 518 errx(2, "malloc(%lu)", (unsigned long)needed); 519 } 520 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { 521 err(1, "sysctl: net.route.0.0.dump"); 522 } 523 lim = buf + needed; 524 for (next = buf; next < lim; next += rtm->rtm_msglen) { 525 rtm = (struct rt_msghdr *)next; 526 np_rtentry(rtm); 527 } 528 } 529 530 static void 531 np_rtentry(struct rt_msghdr *rtm) 532 { 533 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 534 #ifdef notdef 535 static int masks_done, banner_printed; 536 #endif 537 static int old_af; 538 int af1 = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST; 539 540 #ifdef notdef 541 /* for the moment, netmasks are skipped over */ 542 if (!banner_printed) { 543 printf("Netmasks:\n"); 544 banner_printed = 1; 545 } 546 if (masks_done == 0) { 547 if (rtm->rtm_addrs != RTA_DST ) { 548 masks_done = 1; 549 af1 = sa->sa_family; 550 } 551 } else 552 #endif 553 af1 = sa->sa_family; 554 if (af1 != old_af) { 555 pr_family(af1); 556 old_af = af1; 557 } 558 if (rtm->rtm_addrs == RTA_DST) 559 p_sockaddr(sa, NULL, 0, 36); 560 else { 561 p_sockaddr(sa, NULL, rtm->rtm_flags, 16); 562 sa = (struct sockaddr *)(SA_SIZE(sa) + (char *)sa); 563 p_sockaddr(sa, NULL, 0, 18); 564 } 565 p_flags(rtm->rtm_flags & interesting, "%-6.6s "); 566 putchar('\n'); 567 } 568 569 static void 570 p_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags, int width) 571 { 572 const char *cp; 573 574 cp = fmt_sockaddr(sa, mask, flags); 575 576 if (width < 0 ) 577 printf("%s ", cp); 578 else { 579 if (numeric_addr) 580 printf("%-*s ", width, cp); 581 else 582 printf("%-*.*s ", width, width, cp); 583 } 584 } 585 586 static const char * 587 fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags) 588 { 589 static char workbuf[128]; 590 const char *cp; 591 592 if (sa == NULL) 593 return ("null"); 594 595 switch(sa->sa_family) { 596 case AF_INET: 597 { 598 struct sockaddr_in *sockin = (struct sockaddr_in *)sa; 599 600 if ((sockin->sin_addr.s_addr == INADDR_ANY) && 601 mask && 602 ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr) 603 ==0L) 604 cp = "default" ; 605 else if (flags & RTF_HOST) 606 cp = routename(sockin->sin_addr.s_addr); 607 else if (mask) 608 cp = netname(sockin->sin_addr.s_addr, 609 ntohl(((struct sockaddr_in *)mask) 610 ->sin_addr.s_addr)); 611 else 612 cp = netname(sockin->sin_addr.s_addr, 0L); 613 break; 614 } 615 616 #ifdef INET6 617 case AF_INET6: 618 { 619 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa; 620 struct in6_addr *in6 = &sa6->sin6_addr; 621 622 /* 623 * XXX: This is a special workaround for KAME kernels. 624 * sin6_scope_id field of SA should be set in the future. 625 */ 626 if (IN6_IS_ADDR_LINKLOCAL(in6) || 627 IN6_IS_ADDR_MC_LINKLOCAL(in6)) { 628 /* XXX: override is ok? */ 629 sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]); 630 *(u_short *)&in6->s6_addr[2] = 0; 631 } 632 633 if (flags & RTF_HOST) 634 cp = routename6(sa6); 635 else if (mask) 636 cp = netname6(sa6, 637 &((struct sockaddr_in6 *)mask)->sin6_addr); 638 else { 639 cp = netname6(sa6, NULL); 640 } 641 break; 642 } 643 #endif /*INET6*/ 644 645 case AF_IPX: 646 { 647 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 648 if (ipx_nullnet(satoipx_addr(work))) 649 cp = "default"; 650 else 651 cp = ipx_print(sa); 652 break; 653 } 654 case AF_APPLETALK: 655 { 656 if (!(flags & RTF_HOST) && mask) 657 cp = atalk_print2(sa,mask,9); 658 else 659 cp = atalk_print(sa,11); 660 break; 661 } 662 case AF_NETGRAPH: 663 { 664 strlcpy(workbuf, ((struct sockaddr_ng *)sa)->sg_data, 665 sizeof(workbuf)); 666 cp = workbuf; 667 break; 668 } 669 670 case AF_LINK: 671 { 672 struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa; 673 674 if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && 675 sdl->sdl_slen == 0) { 676 (void) sprintf(workbuf, "link#%d", sdl->sdl_index); 677 cp = workbuf; 678 } else 679 switch (sdl->sdl_type) { 680 681 case IFT_ETHER: 682 case IFT_L2VLAN: 683 case IFT_BRIDGE: 684 if (sdl->sdl_alen == ETHER_ADDR_LEN) { 685 cp = ether_ntoa((struct ether_addr *) 686 (sdl->sdl_data + sdl->sdl_nlen)); 687 break; 688 } 689 /* FALLTHROUGH */ 690 default: 691 cp = link_ntoa(sdl); 692 break; 693 } 694 break; 695 } 696 697 default: 698 { 699 u_char *s = (u_char *)sa->sa_data, *slim; 700 char *cq, *cqlim; 701 702 cq = workbuf; 703 slim = sa->sa_len + (u_char *) sa; 704 cqlim = cq + sizeof(workbuf) - 6; 705 cq += sprintf(cq, "(%d)", sa->sa_family); 706 while (s < slim && cq < cqlim) { 707 cq += sprintf(cq, " %02x", *s++); 708 if (s < slim) 709 cq += sprintf(cq, "%02x", *s++); 710 } 711 cp = workbuf; 712 } 713 } 714 715 return (cp); 716 } 717 718 static void 719 p_flags(int f, const char *format) 720 { 721 printf(format, fmt_flags(f)); 722 } 723 724 static const char * 725 fmt_flags(int f) 726 { 727 static char name[33]; 728 char *flags; 729 struct bits *p = bits; 730 731 for (flags = name; p->b_mask; p++) 732 if (p->b_mask & f) 733 *flags++ = p->b_val; 734 *flags = '\0'; 735 return (name); 736 } 737 738 static void 739 p_rtentry(struct rtentry *rt) 740 { 741 static struct ifnet ifnet, *lastif; 742 struct rtentry parent; 743 static char buffer[128]; 744 static char prettyname[128]; 745 struct sockaddr *sa; 746 sa_u addr, mask; 747 748 /* 749 * Don't print protocol-cloned routes unless -a. 750 */ 751 if (rt->rt_flags & RTF_WASCLONED && !aflag) { 752 if (kget(rt->rt_parent, parent) != 0) 753 return; 754 if (parent.rt_flags & RTF_PRCLONING) 755 return; 756 } 757 758 bzero(&addr, sizeof(addr)); 759 if ((sa = kgetsa(rt_key(rt)))) 760 bcopy(sa, &addr, sa->sa_len); 761 bzero(&mask, sizeof(mask)); 762 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 763 bcopy(sa, &mask, sa->sa_len); 764 p_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags, wid_dst); 765 p_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST, wid_gw); 766 snprintf(buffer, sizeof(buffer), "%%-%d.%ds ", wid_flags, wid_flags); 767 p_flags(rt->rt_flags, buffer); 768 if (addr.u_sa.sa_family == AF_INET || Wflag) { 769 printf("%*ld %*lu ", wid_refs, rt->rt_refcnt, 770 wid_use, rt->rt_use); 771 if (Wflag) { 772 if (rt->rt_rmx.rmx_mtu != 0) 773 printf("%*lu ", wid_mtu, rt->rt_rmx.rmx_mtu); 774 else 775 printf("%*s ", wid_mtu, ""); 776 } 777 } 778 if (rt->rt_ifp) { 779 if (rt->rt_ifp != lastif) { 780 if (kget(rt->rt_ifp, ifnet) == 0) 781 strlcpy(prettyname, ifnet.if_xname, 782 sizeof(prettyname)); 783 else 784 strlcpy(prettyname, "---", sizeof(prettyname)); 785 lastif = rt->rt_ifp; 786 } 787 printf("%*.*s", wid_if, wid_if, prettyname); 788 if (rt->rt_rmx.rmx_expire) { 789 time_t expire_time; 790 791 if ((expire_time = 792 rt->rt_rmx.rmx_expire - uptime.tv_sec) > 0) 793 printf(" %*d", wid_expire, (int)expire_time); 794 } 795 if (rt->rt_nodes[0].rn_dupedkey) 796 printf(" =>"); 797 } 798 putchar('\n'); 799 } 800 801 char * 802 routename(in_addr_t in) 803 { 804 char *cp; 805 static char line[MAXHOSTNAMELEN]; 806 struct hostent *hp; 807 808 cp = 0; 809 if (!numeric_addr) { 810 hp = gethostbyaddr(&in, sizeof (struct in_addr), AF_INET); 811 if (hp) { 812 cp = hp->h_name; 813 trimdomain(cp, strlen(cp)); 814 } 815 } 816 if (cp) { 817 strncpy(line, cp, sizeof(line) - 1); 818 line[sizeof(line) - 1] = '\0'; 819 } else { 820 #define C(x) ((x) & 0xff) 821 in = ntohl(in); 822 sprintf(line, "%u.%u.%u.%u", 823 C(in >> 24), C(in >> 16), C(in >> 8), C(in)); 824 } 825 return (line); 826 } 827 828 #define NSHIFT(m) ( \ 829 (m) == IN_CLASSA_NET ? IN_CLASSA_NSHIFT : \ 830 (m) == IN_CLASSB_NET ? IN_CLASSB_NSHIFT : \ 831 (m) == IN_CLASSC_NET ? IN_CLASSC_NSHIFT : \ 832 0) 833 834 static void 835 domask(char *dst, in_addr_t addr __unused, u_long mask) 836 { 837 int b, i; 838 839 if (mask == 0 || (!numeric_addr && NSHIFT(mask) != 0)) { 840 *dst = '\0'; 841 return; 842 } 843 i = 0; 844 for (b = 0; b < 32; b++) 845 if (mask & (1 << b)) { 846 int bb; 847 848 i = b; 849 for (bb = b+1; bb < 32; bb++) 850 if (!(mask & (1 << bb))) { 851 i = -1; /* noncontig */ 852 break; 853 } 854 break; 855 } 856 if (i == -1) 857 sprintf(dst, "&0x%lx", mask); 858 else 859 sprintf(dst, "/%d", 32-i); 860 } 861 862 /* 863 * Return the name of the network whose address is given. 864 * The address is assumed to be that of a net or subnet, not a host. 865 */ 866 char * 867 netname(in_addr_t in, u_long mask) 868 { 869 char *cp = 0; 870 static char line[MAXHOSTNAMELEN]; 871 struct netent *np = 0; 872 in_addr_t i; 873 874 i = ntohl(in); 875 if (!numeric_addr && i) { 876 np = getnetbyaddr(i >> NSHIFT(mask), AF_INET); 877 if (np != NULL) { 878 cp = np->n_name; 879 trimdomain(cp, strlen(cp)); 880 } 881 } 882 if (cp != NULL) { 883 strncpy(line, cp, sizeof(line) - 1); 884 line[sizeof(line) - 1] = '\0'; 885 } else { 886 inet_ntop(AF_INET, &in, line, sizeof(line) - 1); 887 } 888 domask(line + strlen(line), i, mask); 889 return (line); 890 } 891 892 #undef NSHIFT 893 894 #ifdef INET6 895 const char * 896 netname6(struct sockaddr_in6 *sa6, struct in6_addr *mask) 897 { 898 static char line[MAXHOSTNAMELEN]; 899 u_char *p = (u_char *)mask; 900 u_char *lim; 901 int masklen, illegal = 0, flag = 0; 902 903 if (mask) { 904 for (masklen = 0, lim = p + 16; p < lim; p++) { 905 switch (*p) { 906 case 0xff: 907 masklen += 8; 908 break; 909 case 0xfe: 910 masklen += 7; 911 break; 912 case 0xfc: 913 masklen += 6; 914 break; 915 case 0xf8: 916 masklen += 5; 917 break; 918 case 0xf0: 919 masklen += 4; 920 break; 921 case 0xe0: 922 masklen += 3; 923 break; 924 case 0xc0: 925 masklen += 2; 926 break; 927 case 0x80: 928 masklen += 1; 929 break; 930 case 0x00: 931 break; 932 default: 933 illegal ++; 934 break; 935 } 936 } 937 if (illegal) 938 fprintf(stderr, "illegal prefixlen\n"); 939 } 940 else 941 masklen = 128; 942 943 if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr)) 944 return("default"); 945 946 if (numeric_addr) 947 flag |= NI_NUMERICHOST; 948 getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line), 949 NULL, 0, flag); 950 951 if (numeric_addr) 952 sprintf(&line[strlen(line)], "/%d", masklen); 953 954 return line; 955 } 956 957 char * 958 routename6(struct sockaddr_in6 *sa6) 959 { 960 static char line[MAXHOSTNAMELEN]; 961 int flag = 0; 962 /* use local variable for safety */ 963 struct sockaddr_in6 sa6_local; 964 965 sa6_local.sin6_family = AF_INET6; 966 sa6_local.sin6_len = sizeof(sa6_local); 967 sa6_local.sin6_addr = sa6->sin6_addr; 968 sa6_local.sin6_scope_id = sa6->sin6_scope_id; 969 970 if (numeric_addr) 971 flag |= NI_NUMERICHOST; 972 973 getnameinfo((struct sockaddr *)&sa6_local, sa6_local.sin6_len, 974 line, sizeof(line), NULL, 0, flag); 975 976 return line; 977 } 978 #endif /*INET6*/ 979 980 /* 981 * Print routing statistics 982 */ 983 void 984 rt_stats(u_long rtsaddr, u_long rttaddr) 985 { 986 struct rtstat rtstat; 987 int rttrash; 988 989 if (rtsaddr == 0) { 990 printf("rtstat: symbol not in namelist\n"); 991 return; 992 } 993 if (rttaddr == 0) { 994 printf("rttrash: symbol not in namelist\n"); 995 return; 996 } 997 kread(rtsaddr, (char *)&rtstat, sizeof (rtstat)); 998 kread(rttaddr, (char *)&rttrash, sizeof (rttrash)); 999 printf("routing:\n"); 1000 1001 #define p(f, m) if (rtstat.f || sflag <= 1) \ 1002 printf(m, rtstat.f, plural(rtstat.f)) 1003 1004 p(rts_badredirect, "\t%u bad routing redirect%s\n"); 1005 p(rts_dynamic, "\t%u dynamically created route%s\n"); 1006 p(rts_newgateway, "\t%u new gateway%s due to redirects\n"); 1007 p(rts_unreach, "\t%u destination%s found unreachable\n"); 1008 p(rts_wildcard, "\t%u use%s of a wildcard route\n"); 1009 #undef p 1010 1011 if (rttrash || sflag <= 1) 1012 printf("\t%u route%s not in table but not freed\n", 1013 rttrash, plural(rttrash)); 1014 } 1015 1016 char * 1017 ipx_print(struct sockaddr *sa) 1018 { 1019 u_short port; 1020 struct servent *sp = 0; 1021 const char *net = "", *host = ""; 1022 char *p; 1023 u_char *q; 1024 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 1025 static char mybuf[50]; 1026 char cport[10], chost[15], cnet[15]; 1027 1028 port = ntohs(work.x_port); 1029 1030 if (ipx_nullnet(work) && ipx_nullhost(work)) { 1031 1032 if (port) { 1033 if (sp) 1034 sprintf(mybuf, "*.%s", sp->s_name); 1035 else 1036 sprintf(mybuf, "*.%x", port); 1037 } else 1038 sprintf(mybuf, "*.*"); 1039 1040 return (mybuf); 1041 } 1042 1043 if (ipx_wildnet(work)) 1044 net = "any"; 1045 else if (ipx_nullnet(work)) 1046 net = "*"; 1047 else { 1048 q = work.x_net.c_net; 1049 sprintf(cnet, "%02x%02x%02x%02x", 1050 q[0], q[1], q[2], q[3]); 1051 for (p = cnet; *p == '0' && p < cnet + 8; p++) 1052 continue; 1053 net = p; 1054 } 1055 1056 if (ipx_wildhost(work)) 1057 host = "any"; 1058 else if (ipx_nullhost(work)) 1059 host = "*"; 1060 else { 1061 q = work.x_host.c_host; 1062 sprintf(chost, "%02x%02x%02x%02x%02x%02x", 1063 q[0], q[1], q[2], q[3], q[4], q[5]); 1064 for (p = chost; *p == '0' && p < chost + 12; p++) 1065 continue; 1066 host = p; 1067 } 1068 1069 if (port) { 1070 if (strcmp(host, "*") == 0) 1071 host = ""; 1072 if (sp) 1073 snprintf(cport, sizeof(cport), 1074 "%s%s", *host ? "." : "", sp->s_name); 1075 else 1076 snprintf(cport, sizeof(cport), 1077 "%s%x", *host ? "." : "", port); 1078 } else 1079 *cport = 0; 1080 1081 snprintf(mybuf, sizeof(mybuf), "%s.%s%s", net, host, cport); 1082 return(mybuf); 1083 } 1084 1085 char * 1086 ipx_phost(struct sockaddr *sa) 1087 { 1088 struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa; 1089 struct sockaddr_ipx work; 1090 static union ipx_net ipx_zeronet; 1091 char *p; 1092 struct ipx_addr in; 1093 1094 work = *sipx; 1095 in = work.sipx_addr; 1096 1097 work.sipx_addr.x_port = 0; 1098 work.sipx_addr.x_net = ipx_zeronet; 1099 p = ipx_print((struct sockaddr *)&work); 1100 if (strncmp("*.", p, 2) == 0) p += 2; 1101 1102 return(p); 1103 } 1104 1105 void 1106 upHex(char *p0) 1107 { 1108 char *p = p0; 1109 1110 for (; *p; p++) 1111 switch (*p) { 1112 1113 case 'a': 1114 case 'b': 1115 case 'c': 1116 case 'd': 1117 case 'e': 1118 case 'f': 1119 *p += ('A' - 'a'); 1120 break; 1121 } 1122 } 1123