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 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #if 0 31 #ifndef lint 32 static char sccsid[] = "From: @(#)route.c 8.6 (Berkeley) 4/28/95"; 33 #endif /* not lint */ 34 #endif 35 36 #include <sys/cdefs.h> 37 __FBSDID("$FreeBSD$"); 38 39 #include <sys/param.h> 40 #include <sys/protosw.h> 41 #include <sys/socket.h> 42 #include <sys/socketvar.h> 43 #include <sys/time.h> 44 45 #include <net/ethernet.h> 46 #include <net/if.h> 47 #include <net/if_var.h> 48 #include <net/if_dl.h> 49 #include <net/if_types.h> 50 #include <net/radix.h> 51 #include <net/route.h> 52 53 #include <netinet/in.h> 54 #include <netipx/ipx.h> 55 #include <netatalk/at.h> 56 #include <netgraph/ng_socket.h> 57 58 #include <sys/sysctl.h> 59 60 #include <arpa/inet.h> 61 #include <libutil.h> 62 #include <netdb.h> 63 #include <stdint.h> 64 #include <stdio.h> 65 #include <stdlib.h> 66 #include <string.h> 67 #include <sysexits.h> 68 #include <unistd.h> 69 #include <err.h> 70 #include "netstat.h" 71 72 #define kget(p, d) (kread((u_long)(p), (char *)&(d), sizeof (d))) 73 74 /* 75 * Definitions for showing gateway flags. 76 */ 77 struct bits { 78 u_long b_mask; 79 char b_val; 80 } bits[] = { 81 { RTF_UP, 'U' }, 82 { RTF_GATEWAY, 'G' }, 83 { RTF_HOST, 'H' }, 84 { RTF_REJECT, 'R' }, 85 { RTF_DYNAMIC, 'D' }, 86 { RTF_MODIFIED, 'M' }, 87 { RTF_DONE, 'd' }, /* Completed -- for routing messages only */ 88 { RTF_XRESOLVE, 'X' }, 89 { RTF_STATIC, 'S' }, 90 { RTF_PROTO1, '1' }, 91 { RTF_PROTO2, '2' }, 92 { RTF_PRCLONING,'c' }, 93 { RTF_PROTO3, '3' }, 94 { RTF_BLACKHOLE,'B' }, 95 { RTF_BROADCAST,'b' }, 96 #ifdef RTF_LLINFO 97 { RTF_LLINFO, 'L' }, 98 #endif 99 #ifdef RTF_WASCLONED 100 { RTF_WASCLONED,'W' }, 101 #endif 102 #ifdef RTF_CLONING 103 { RTF_CLONING, 'C' }, 104 #endif 105 { 0 , 0 } 106 }; 107 108 typedef union { 109 long dummy; /* Helps align structure. */ 110 struct sockaddr u_sa; 111 u_short u_data[128]; 112 } sa_u; 113 114 static sa_u pt_u; 115 116 int fibnum; 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; 122 123 int NewTree = 0; 124 125 struct timespec uptime; 126 127 static struct sockaddr *kgetsa(struct sockaddr *); 128 static void size_cols(int ef, struct radix_node *rn); 129 static void size_cols_tree(struct radix_node *rn); 130 static void size_cols_rtentry(struct rtentry *rt); 131 static void p_tree(struct radix_node *); 132 static void p_rtnode(void); 133 static void ntreestuff(void); 134 static void np_rtentry(struct rt_msghdr *); 135 static void p_sockaddr(struct sockaddr *, struct sockaddr *, int, int); 136 static const char *fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask, 137 int flags); 138 static void p_flags(int, const char *); 139 static const char *fmt_flags(int f); 140 static void p_rtentry(struct rtentry *); 141 static void domask(char *, in_addr_t, u_long); 142 143 /* 144 * Print routing tables. 145 */ 146 void 147 routepr(u_long rtree) 148 { 149 struct radix_node_head **rnhp, *rnh, head; 150 size_t intsize; 151 int i; 152 int numfibs; 153 154 intsize = sizeof(int); 155 if (sysctlbyname("net.my_fibnum", &fibnum, &intsize, NULL, 0) == -1) 156 fibnum = 0; 157 if (sysctlbyname("net.fibs", &numfibs, &intsize, NULL, 0) == -1) 158 numfibs = 1; 159 rt_tables = calloc(numfibs * (AF_MAX+1), 160 sizeof(struct radix_node_head *)); 161 if (rt_tables == NULL) 162 err(EX_OSERR, "memory allocation failed"); 163 /* 164 * Since kernel & userland use different timebase 165 * (time_uptime vs time_second) and we are reading kernel memory 166 * directly we should do rt_rmx.rmx_expire --> expire_time conversion. 167 */ 168 if (clock_gettime(CLOCK_UPTIME, &uptime) < 0) 169 err(EX_OSERR, "clock_gettime() failed"); 170 171 printf("Routing tables\n"); 172 173 if (Aflag == 0 && NewTree) 174 ntreestuff(); 175 else { 176 if (rtree == 0) { 177 printf("rt_tables: symbol not in namelist\n"); 178 return; 179 } 180 181 if (kread((u_long)(rtree), (char *)(rt_tables), (numfibs * 182 (AF_MAX+1) * sizeof(struct radix_node_head *))) != 0) 183 return; 184 for (i = 0; i <= AF_MAX; i++) { 185 int tmpfib; 186 if (i != AF_INET) 187 tmpfib = 0; 188 else 189 tmpfib = fibnum; 190 rnhp = (struct radix_node_head **)*rt_tables; 191 /* Calculate the in-kernel address. */ 192 rnhp += tmpfib * (AF_MAX+1) + i; 193 /* Read the in kernel rhn pointer. */ 194 if (kget(rnhp, rnh) != 0) 195 continue; 196 if (rnh == NULL) 197 continue; 198 /* Read the rnh data. */ 199 if (kget(rnh, head) != 0) 200 continue; 201 if (i == AF_UNSPEC) { 202 if (Aflag && af == 0) { 203 printf("Netmasks:\n"); 204 p_tree(head.rnh_treetop); 205 } 206 } else if (af == AF_UNSPEC || af == i) { 207 size_cols(i, head.rnh_treetop); 208 pr_family(i); 209 do_rtent = 1; 210 pr_rthdr(i); 211 p_tree(head.rnh_treetop); 212 } 213 } 214 } 215 } 216 217 /* 218 * Print address family header before a section of the routing table. 219 */ 220 void 221 pr_family(int af1) 222 { 223 const char *afname; 224 225 switch (af1) { 226 case AF_INET: 227 afname = "Internet"; 228 break; 229 #ifdef INET6 230 case AF_INET6: 231 afname = "Internet6"; 232 break; 233 #endif /*INET6*/ 234 case AF_IPX: 235 afname = "IPX"; 236 break; 237 case AF_ISO: 238 afname = "ISO"; 239 break; 240 case AF_APPLETALK: 241 afname = "AppleTalk"; 242 break; 243 case AF_CCITT: 244 afname = "X.25"; 245 break; 246 case AF_NETGRAPH: 247 afname = "Netgraph"; 248 break; 249 default: 250 afname = NULL; 251 break; 252 } 253 if (afname) 254 printf("\n%s:\n", afname); 255 else 256 printf("\nProtocol Family %d:\n", af1); 257 } 258 259 /* column widths; each followed by one space */ 260 #ifndef INET6 261 #define WID_DST_DEFAULT(af) 18 /* width of destination column */ 262 #define WID_GW_DEFAULT(af) 18 /* width of gateway column */ 263 #define WID_IF_DEFAULT(af) (Wflag ? 8 : 6) /* width of netif column */ 264 #else 265 #define WID_DST_DEFAULT(af) \ 266 ((af) == AF_INET6 ? (numeric_addr ? 33: 18) : 18) 267 #define WID_GW_DEFAULT(af) \ 268 ((af) == AF_INET6 ? (numeric_addr ? 29 : 18) : 18) 269 #define WID_IF_DEFAULT(af) ((af) == AF_INET6 ? 8 : (Wflag ? 8 : 6)) 270 #endif /*INET6*/ 271 272 static int wid_dst; 273 static int wid_gw; 274 static int wid_flags; 275 static int wid_refs; 276 static int wid_use; 277 static int wid_mtu; 278 static int wid_if; 279 static int wid_expire; 280 281 static void 282 size_cols(int ef __unused, struct radix_node *rn) 283 { 284 wid_dst = WID_DST_DEFAULT(ef); 285 wid_gw = WID_GW_DEFAULT(ef); 286 wid_flags = 6; 287 wid_refs = 6; 288 wid_use = 8; 289 wid_mtu = 6; 290 wid_if = WID_IF_DEFAULT(ef); 291 wid_expire = 6; 292 293 if (Wflag) 294 size_cols_tree(rn); 295 } 296 297 static void 298 size_cols_tree(struct radix_node *rn) 299 { 300 again: 301 if (kget(rn, rnode) != 0) 302 return; 303 if (!(rnode.rn_flags & RNF_ACTIVE)) 304 return; 305 if (rnode.rn_bit < 0) { 306 if ((rnode.rn_flags & RNF_ROOT) == 0) { 307 if (kget(rn, rtentry) != 0) 308 return; 309 size_cols_rtentry(&rtentry); 310 } 311 if ((rn = rnode.rn_dupedkey)) 312 goto again; 313 } else { 314 rn = rnode.rn_right; 315 size_cols_tree(rnode.rn_left); 316 size_cols_tree(rn); 317 } 318 } 319 320 static void 321 size_cols_rtentry(struct rtentry *rt) 322 { 323 static struct ifnet ifnet, *lastif; 324 static char buffer[100]; 325 const char *bp; 326 struct sockaddr *sa; 327 sa_u addr, mask; 328 int len; 329 330 bzero(&addr, sizeof(addr)); 331 if ((sa = kgetsa(rt_key(rt)))) 332 bcopy(sa, &addr, sa->sa_len); 333 bzero(&mask, sizeof(mask)); 334 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 335 bcopy(sa, &mask, sa->sa_len); 336 bp = fmt_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags); 337 len = strlen(bp); 338 wid_dst = MAX(len, wid_dst); 339 340 bp = fmt_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST); 341 len = strlen(bp); 342 wid_gw = MAX(len, wid_gw); 343 344 bp = fmt_flags(rt->rt_flags); 345 len = strlen(bp); 346 wid_flags = MAX(len, wid_flags); 347 348 if (addr.u_sa.sa_family == AF_INET || Wflag) { 349 len = snprintf(buffer, sizeof(buffer), "%d", rt->rt_refcnt); 350 wid_refs = MAX(len, wid_refs); 351 len = snprintf(buffer, sizeof(buffer), "%lu", rt->rt_use); 352 wid_use = MAX(len, wid_use); 353 if (Wflag && rt->rt_rmx.rmx_mtu != 0) { 354 len = snprintf(buffer, sizeof(buffer), 355 "%lu", rt->rt_rmx.rmx_mtu); 356 wid_mtu = MAX(len, wid_mtu); 357 } 358 } 359 if (rt->rt_ifp) { 360 if (rt->rt_ifp != lastif) { 361 if (kget(rt->rt_ifp, ifnet) == 0) 362 len = strlen(ifnet.if_xname); 363 else 364 len = strlen("---"); 365 lastif = rt->rt_ifp; 366 wid_if = MAX(len, wid_if); 367 } 368 if (rt->rt_rmx.rmx_expire) { 369 time_t expire_time; 370 371 if ((expire_time = 372 rt->rt_rmx.rmx_expire - uptime.tv_sec) > 0) { 373 len = snprintf(buffer, sizeof(buffer), "%d", 374 (int)expire_time); 375 wid_expire = MAX(len, wid_expire); 376 } 377 } 378 } 379 } 380 381 382 /* 383 * Print header for routing table columns. 384 */ 385 void 386 pr_rthdr(int af1) 387 { 388 389 if (Aflag) 390 printf("%-8.8s ","Address"); 391 if (af1 == AF_INET || Wflag) { 392 if (Wflag) { 393 printf("%-*.*s %-*.*s %-*.*s %*.*s %*.*s %*.*s %*.*s %*s\n", 394 wid_dst, wid_dst, "Destination", 395 wid_gw, wid_gw, "Gateway", 396 wid_flags, wid_flags, "Flags", 397 wid_refs, wid_refs, "Refs", 398 wid_use, wid_use, "Use", 399 wid_mtu, wid_mtu, "Mtu", 400 wid_if, wid_if, "Netif", 401 wid_expire, "Expire"); 402 } else { 403 printf("%-*.*s %-*.*s %-*.*s %*.*s %*.*s %*.*s %*s\n", 404 wid_dst, wid_dst, "Destination", 405 wid_gw, wid_gw, "Gateway", 406 wid_flags, wid_flags, "Flags", 407 wid_refs, wid_refs, "Refs", 408 wid_use, wid_use, "Use", 409 wid_if, wid_if, "Netif", 410 wid_expire, "Expire"); 411 } 412 } else { 413 printf("%-*.*s %-*.*s %-*.*s %*.*s %*s\n", 414 wid_dst, wid_dst, "Destination", 415 wid_gw, wid_gw, "Gateway", 416 wid_flags, wid_flags, "Flags", 417 wid_if, wid_if, "Netif", 418 wid_expire, "Expire"); 419 } 420 } 421 422 static struct sockaddr * 423 kgetsa(struct sockaddr *dst) 424 { 425 426 if (kget(dst, pt_u.u_sa) != 0) 427 return (NULL); 428 if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa)) 429 kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len); 430 return (&pt_u.u_sa); 431 } 432 433 static void 434 p_tree(struct radix_node *rn) 435 { 436 437 again: 438 if (kget(rn, rnode) != 0) 439 return; 440 if (!(rnode.rn_flags & RNF_ACTIVE)) 441 return; 442 if (rnode.rn_bit < 0) { 443 if (Aflag) 444 printf("%-8.8lx ", (u_long)rn); 445 if (rnode.rn_flags & RNF_ROOT) { 446 if (Aflag) 447 printf("(root node)%s", 448 rnode.rn_dupedkey ? " =>\n" : "\n"); 449 } else if (do_rtent) { 450 if (kget(rn, rtentry) == 0) { 451 p_rtentry(&rtentry); 452 if (Aflag) 453 p_rtnode(); 454 } 455 } else { 456 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key), 457 NULL, 0, 44); 458 putchar('\n'); 459 } 460 if ((rn = rnode.rn_dupedkey)) 461 goto again; 462 } else { 463 if (Aflag && do_rtent) { 464 printf("%-8.8lx ", (u_long)rn); 465 p_rtnode(); 466 } 467 rn = rnode.rn_right; 468 p_tree(rnode.rn_left); 469 p_tree(rn); 470 } 471 } 472 473 char nbuf[20]; 474 475 static void 476 p_rtnode(void) 477 { 478 struct radix_mask *rm = rnode.rn_mklist; 479 480 if (rnode.rn_bit < 0) { 481 if (rnode.rn_mask) { 482 printf("\t mask "); 483 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask), 484 NULL, 0, -1); 485 } else if (rm == 0) 486 return; 487 } else { 488 sprintf(nbuf, "(%d)", rnode.rn_bit); 489 printf("%6.6s %8.8lx : %8.8lx", nbuf, (u_long)rnode.rn_left, (u_long)rnode.rn_right); 490 } 491 while (rm) { 492 if (kget(rm, rmask) != 0) 493 break; 494 sprintf(nbuf, " %d refs, ", rmask.rm_refs); 495 printf(" mk = %8.8lx {(%d),%s", 496 (u_long)rm, -1 - rmask.rm_bit, rmask.rm_refs ? nbuf : " "); 497 if (rmask.rm_flags & RNF_NORMAL) { 498 struct radix_node rnode_aux; 499 printf(" <normal>, "); 500 if (kget(rmask.rm_leaf, rnode_aux) == 0) 501 p_sockaddr(kgetsa((struct sockaddr *)rnode_aux.rn_mask), 502 NULL, 0, -1); 503 else 504 p_sockaddr(NULL, NULL, 0, -1); 505 } else 506 p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 507 NULL, 0, -1); 508 putchar('}'); 509 if ((rm = rmask.rm_mklist)) 510 printf(" ->"); 511 } 512 putchar('\n'); 513 } 514 515 static void 516 ntreestuff(void) 517 { 518 size_t needed; 519 int mib[6]; 520 char *buf, *next, *lim; 521 struct rt_msghdr *rtm; 522 523 mib[0] = CTL_NET; 524 mib[1] = PF_ROUTE; 525 mib[2] = 0; 526 mib[3] = 0; 527 mib[4] = NET_RT_DUMP; 528 mib[5] = 0; 529 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) { 530 err(1, "sysctl: net.route.0.0.dump estimate"); 531 } 532 533 if ((buf = malloc(needed)) == 0) { 534 errx(2, "malloc(%lu)", (unsigned long)needed); 535 } 536 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { 537 err(1, "sysctl: net.route.0.0.dump"); 538 } 539 lim = buf + needed; 540 for (next = buf; next < lim; next += rtm->rtm_msglen) { 541 rtm = (struct rt_msghdr *)next; 542 np_rtentry(rtm); 543 } 544 } 545 546 static void 547 np_rtentry(struct rt_msghdr *rtm) 548 { 549 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 550 #ifdef notdef 551 static int masks_done, banner_printed; 552 #endif 553 static int old_af; 554 int af1 = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST; 555 556 #ifdef notdef 557 /* for the moment, netmasks are skipped over */ 558 if (!banner_printed) { 559 printf("Netmasks:\n"); 560 banner_printed = 1; 561 } 562 if (masks_done == 0) { 563 if (rtm->rtm_addrs != RTA_DST ) { 564 masks_done = 1; 565 af1 = sa->sa_family; 566 } 567 } else 568 #endif 569 af1 = sa->sa_family; 570 if (af1 != old_af) { 571 pr_family(af1); 572 old_af = af1; 573 } 574 if (rtm->rtm_addrs == RTA_DST) 575 p_sockaddr(sa, NULL, 0, 36); 576 else { 577 p_sockaddr(sa, NULL, rtm->rtm_flags, 16); 578 sa = (struct sockaddr *)(SA_SIZE(sa) + (char *)sa); 579 p_sockaddr(sa, NULL, 0, 18); 580 } 581 p_flags(rtm->rtm_flags & interesting, "%-6.6s "); 582 putchar('\n'); 583 } 584 585 static void 586 p_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags, int width) 587 { 588 const char *cp; 589 590 cp = fmt_sockaddr(sa, mask, flags); 591 592 if (width < 0 ) 593 printf("%s ", cp); 594 else { 595 if (numeric_addr) 596 printf("%-*s ", width, cp); 597 else 598 printf("%-*.*s ", width, width, cp); 599 } 600 } 601 602 static const char * 603 fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags) 604 { 605 static char workbuf[128]; 606 const char *cp; 607 608 if (sa == NULL) 609 return ("null"); 610 611 switch(sa->sa_family) { 612 case AF_INET: 613 { 614 struct sockaddr_in *sockin = (struct sockaddr_in *)sa; 615 616 if ((sockin->sin_addr.s_addr == INADDR_ANY) && 617 mask && 618 ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr) 619 ==0L) 620 cp = "default" ; 621 else if (flags & RTF_HOST) 622 cp = routename(sockin->sin_addr.s_addr); 623 else if (mask) 624 cp = netname(sockin->sin_addr.s_addr, 625 ntohl(((struct sockaddr_in *)mask) 626 ->sin_addr.s_addr)); 627 else 628 cp = netname(sockin->sin_addr.s_addr, 0L); 629 break; 630 } 631 632 #ifdef INET6 633 case AF_INET6: 634 { 635 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa; 636 637 in6_fillscopeid(sa6); 638 639 if (flags & RTF_HOST) 640 cp = routename6(sa6); 641 else if (mask) 642 cp = netname6(sa6, 643 &((struct sockaddr_in6 *)mask)->sin6_addr); 644 else { 645 cp = netname6(sa6, NULL); 646 } 647 break; 648 } 649 #endif /*INET6*/ 650 651 case AF_IPX: 652 { 653 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 654 if (ipx_nullnet(satoipx_addr(work))) 655 cp = "default"; 656 else 657 cp = ipx_print(sa); 658 break; 659 } 660 case AF_APPLETALK: 661 { 662 if (!(flags & RTF_HOST) && mask) 663 cp = atalk_print2(sa,mask,9); 664 else 665 cp = atalk_print(sa,11); 666 break; 667 } 668 case AF_NETGRAPH: 669 { 670 strlcpy(workbuf, ((struct sockaddr_ng *)sa)->sg_data, 671 sizeof(workbuf)); 672 cp = workbuf; 673 break; 674 } 675 676 case AF_LINK: 677 { 678 struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa; 679 680 if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && 681 sdl->sdl_slen == 0) { 682 (void) sprintf(workbuf, "link#%d", sdl->sdl_index); 683 cp = workbuf; 684 } else 685 switch (sdl->sdl_type) { 686 687 case IFT_ETHER: 688 case IFT_L2VLAN: 689 case IFT_BRIDGE: 690 if (sdl->sdl_alen == ETHER_ADDR_LEN) { 691 cp = ether_ntoa((struct ether_addr *) 692 (sdl->sdl_data + sdl->sdl_nlen)); 693 break; 694 } 695 /* FALLTHROUGH */ 696 default: 697 cp = link_ntoa(sdl); 698 break; 699 } 700 break; 701 } 702 703 default: 704 { 705 u_char *s = (u_char *)sa->sa_data, *slim; 706 char *cq, *cqlim; 707 708 cq = workbuf; 709 slim = sa->sa_len + (u_char *) sa; 710 cqlim = cq + sizeof(workbuf) - 6; 711 cq += sprintf(cq, "(%d)", sa->sa_family); 712 while (s < slim && cq < cqlim) { 713 cq += sprintf(cq, " %02x", *s++); 714 if (s < slim) 715 cq += sprintf(cq, "%02x", *s++); 716 } 717 cp = workbuf; 718 } 719 } 720 721 return (cp); 722 } 723 724 static void 725 p_flags(int f, const char *format) 726 { 727 printf(format, fmt_flags(f)); 728 } 729 730 static const char * 731 fmt_flags(int f) 732 { 733 static char name[33]; 734 char *flags; 735 struct bits *p = bits; 736 737 for (flags = name; p->b_mask; p++) 738 if (p->b_mask & f) 739 *flags++ = p->b_val; 740 *flags = '\0'; 741 return (name); 742 } 743 744 static void 745 p_rtentry(struct rtentry *rt) 746 { 747 static struct ifnet ifnet, *lastif; 748 static char buffer[128]; 749 static char prettyname[128]; 750 struct sockaddr *sa; 751 sa_u addr, mask; 752 753 bzero(&addr, sizeof(addr)); 754 if ((sa = kgetsa(rt_key(rt)))) 755 bcopy(sa, &addr, sa->sa_len); 756 bzero(&mask, sizeof(mask)); 757 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 758 bcopy(sa, &mask, sa->sa_len); 759 p_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags, wid_dst); 760 p_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST, wid_gw); 761 snprintf(buffer, sizeof(buffer), "%%-%d.%ds ", wid_flags, wid_flags); 762 p_flags(rt->rt_flags, buffer); 763 if (addr.u_sa.sa_family == AF_INET || Wflag) { 764 printf("%*d %*lu ", wid_refs, rt->rt_refcnt, 765 wid_use, rt->rt_use); 766 if (Wflag) { 767 if (rt->rt_rmx.rmx_mtu != 0) 768 printf("%*lu ", wid_mtu, rt->rt_rmx.rmx_mtu); 769 else 770 printf("%*s ", wid_mtu, ""); 771 } 772 } 773 if (rt->rt_ifp) { 774 if (rt->rt_ifp != lastif) { 775 if (kget(rt->rt_ifp, ifnet) == 0) 776 strlcpy(prettyname, ifnet.if_xname, 777 sizeof(prettyname)); 778 else 779 strlcpy(prettyname, "---", sizeof(prettyname)); 780 lastif = rt->rt_ifp; 781 } 782 printf("%*.*s", wid_if, wid_if, prettyname); 783 if (rt->rt_rmx.rmx_expire) { 784 time_t expire_time; 785 786 if ((expire_time = 787 rt->rt_rmx.rmx_expire - uptime.tv_sec) > 0) 788 printf(" %*d", wid_expire, (int)expire_time); 789 } 790 if (rt->rt_nodes[0].rn_dupedkey) 791 printf(" =>"); 792 } 793 putchar('\n'); 794 } 795 796 char * 797 routename(in_addr_t in) 798 { 799 char *cp; 800 static char line[MAXHOSTNAMELEN]; 801 struct hostent *hp; 802 803 cp = 0; 804 if (!numeric_addr) { 805 hp = gethostbyaddr(&in, sizeof (struct in_addr), AF_INET); 806 if (hp) { 807 cp = hp->h_name; 808 trimdomain(cp, strlen(cp)); 809 } 810 } 811 if (cp) { 812 strlcpy(line, cp, sizeof(line)); 813 } else { 814 #define C(x) ((x) & 0xff) 815 in = ntohl(in); 816 sprintf(line, "%u.%u.%u.%u", 817 C(in >> 24), C(in >> 16), C(in >> 8), C(in)); 818 } 819 return (line); 820 } 821 822 #define NSHIFT(m) ( \ 823 (m) == IN_CLASSA_NET ? IN_CLASSA_NSHIFT : \ 824 (m) == IN_CLASSB_NET ? IN_CLASSB_NSHIFT : \ 825 (m) == IN_CLASSC_NET ? IN_CLASSC_NSHIFT : \ 826 0) 827 828 static void 829 domask(char *dst, in_addr_t addr __unused, u_long mask) 830 { 831 int b, i; 832 833 if (mask == 0 || (!numeric_addr && NSHIFT(mask) != 0)) { 834 *dst = '\0'; 835 return; 836 } 837 i = 0; 838 for (b = 0; b < 32; b++) 839 if (mask & (1 << b)) { 840 int bb; 841 842 i = b; 843 for (bb = b+1; bb < 32; bb++) 844 if (!(mask & (1 << bb))) { 845 i = -1; /* noncontig */ 846 break; 847 } 848 break; 849 } 850 if (i == -1) 851 sprintf(dst, "&0x%lx", mask); 852 else 853 sprintf(dst, "/%d", 32-i); 854 } 855 856 /* 857 * Return the name of the network whose address is given. 858 * The address is assumed to be that of a net or subnet, not a host. 859 */ 860 char * 861 netname(in_addr_t in, u_long mask) 862 { 863 char *cp = 0; 864 static char line[MAXHOSTNAMELEN]; 865 struct netent *np = 0; 866 in_addr_t i; 867 868 i = ntohl(in); 869 if (!numeric_addr && i) { 870 np = getnetbyaddr(i >> NSHIFT(mask), AF_INET); 871 if (np != NULL) { 872 cp = np->n_name; 873 trimdomain(cp, strlen(cp)); 874 } 875 } 876 if (cp != NULL) { 877 strlcpy(line, cp, sizeof(line)); 878 } else { 879 inet_ntop(AF_INET, &in, line, sizeof(line) - 1); 880 } 881 domask(line + strlen(line), i, mask); 882 return (line); 883 } 884 885 #undef NSHIFT 886 887 #ifdef INET6 888 void 889 in6_fillscopeid(struct sockaddr_in6 *sa6) 890 { 891 #if defined(__KAME__) 892 /* 893 * XXX: This is a special workaround for KAME kernels. 894 * sin6_scope_id field of SA should be set in the future. 895 */ 896 if (IN6_IS_ADDR_LINKLOCAL(&sa6->sin6_addr) || 897 IN6_IS_ADDR_MC_NODELOCAL(&sa6->sin6_addr) || 898 IN6_IS_ADDR_MC_LINKLOCAL(&sa6->sin6_addr)) { 899 /* XXX: override is ok? */ 900 sa6->sin6_scope_id = 901 ntohs(*(u_int16_t *)&sa6->sin6_addr.s6_addr[2]); 902 sa6->sin6_addr.s6_addr[2] = sa6->sin6_addr.s6_addr[3] = 0; 903 } 904 #endif 905 } 906 907 const char * 908 netname6(struct sockaddr_in6 *sa6, struct in6_addr *mask) 909 { 910 static char line[MAXHOSTNAMELEN]; 911 u_char *p = (u_char *)mask; 912 u_char *lim; 913 int masklen, illegal = 0, flag = 0; 914 915 if (mask) { 916 for (masklen = 0, lim = p + 16; p < lim; p++) { 917 switch (*p) { 918 case 0xff: 919 masklen += 8; 920 break; 921 case 0xfe: 922 masklen += 7; 923 break; 924 case 0xfc: 925 masklen += 6; 926 break; 927 case 0xf8: 928 masklen += 5; 929 break; 930 case 0xf0: 931 masklen += 4; 932 break; 933 case 0xe0: 934 masklen += 3; 935 break; 936 case 0xc0: 937 masklen += 2; 938 break; 939 case 0x80: 940 masklen += 1; 941 break; 942 case 0x00: 943 break; 944 default: 945 illegal ++; 946 break; 947 } 948 } 949 if (illegal) 950 fprintf(stderr, "illegal prefixlen\n"); 951 } 952 else 953 masklen = 128; 954 955 if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr)) 956 return("default"); 957 958 if (numeric_addr) 959 flag |= NI_NUMERICHOST; 960 getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line), 961 NULL, 0, flag); 962 963 if (numeric_addr) 964 sprintf(&line[strlen(line)], "/%d", masklen); 965 966 return line; 967 } 968 969 char * 970 routename6(struct sockaddr_in6 *sa6) 971 { 972 static char line[MAXHOSTNAMELEN]; 973 int flag = 0; 974 /* use local variable for safety */ 975 struct sockaddr_in6 sa6_local; 976 977 sa6_local.sin6_family = AF_INET6; 978 sa6_local.sin6_len = sizeof(sa6_local); 979 sa6_local.sin6_addr = sa6->sin6_addr; 980 sa6_local.sin6_scope_id = sa6->sin6_scope_id; 981 982 if (numeric_addr) 983 flag |= NI_NUMERICHOST; 984 985 getnameinfo((struct sockaddr *)&sa6_local, sa6_local.sin6_len, 986 line, sizeof(line), NULL, 0, flag); 987 988 return line; 989 } 990 #endif /*INET6*/ 991 992 /* 993 * Print routing statistics 994 */ 995 void 996 rt_stats(u_long rtsaddr, u_long rttaddr) 997 { 998 struct rtstat rtstat; 999 int rttrash; 1000 1001 if (rtsaddr == 0) { 1002 printf("rtstat: symbol not in namelist\n"); 1003 return; 1004 } 1005 if (rttaddr == 0) { 1006 printf("rttrash: symbol not in namelist\n"); 1007 return; 1008 } 1009 kread(rtsaddr, (char *)&rtstat, sizeof (rtstat)); 1010 kread(rttaddr, (char *)&rttrash, sizeof (rttrash)); 1011 printf("routing:\n"); 1012 1013 #define p(f, m) if (rtstat.f || sflag <= 1) \ 1014 printf(m, rtstat.f, plural(rtstat.f)) 1015 1016 p(rts_badredirect, "\t%hu bad routing redirect%s\n"); 1017 p(rts_dynamic, "\t%hu dynamically created route%s\n"); 1018 p(rts_newgateway, "\t%hu new gateway%s due to redirects\n"); 1019 p(rts_unreach, "\t%hu destination%s found unreachable\n"); 1020 p(rts_wildcard, "\t%hu use%s of a wildcard route\n"); 1021 #undef p 1022 1023 if (rttrash || sflag <= 1) 1024 printf("\t%u route%s not in table but not freed\n", 1025 rttrash, plural(rttrash)); 1026 } 1027 1028 char * 1029 ipx_print(struct sockaddr *sa) 1030 { 1031 u_short port; 1032 struct servent *sp = 0; 1033 const char *net = "", *host = ""; 1034 char *p; 1035 u_char *q; 1036 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 1037 static char mybuf[50]; 1038 char cport[10], chost[15], cnet[15]; 1039 1040 port = ntohs(work.x_port); 1041 1042 if (ipx_nullnet(work) && ipx_nullhost(work)) { 1043 1044 if (port) { 1045 if (sp) 1046 sprintf(mybuf, "*.%s", sp->s_name); 1047 else 1048 sprintf(mybuf, "*.%x", port); 1049 } else 1050 sprintf(mybuf, "*.*"); 1051 1052 return (mybuf); 1053 } 1054 1055 if (ipx_wildnet(work)) 1056 net = "any"; 1057 else if (ipx_nullnet(work)) 1058 net = "*"; 1059 else { 1060 q = work.x_net.c_net; 1061 sprintf(cnet, "%02x%02x%02x%02x", 1062 q[0], q[1], q[2], q[3]); 1063 for (p = cnet; *p == '0' && p < cnet + 8; p++) 1064 continue; 1065 net = p; 1066 } 1067 1068 if (ipx_wildhost(work)) 1069 host = "any"; 1070 else if (ipx_nullhost(work)) 1071 host = "*"; 1072 else { 1073 q = work.x_host.c_host; 1074 sprintf(chost, "%02x%02x%02x%02x%02x%02x", 1075 q[0], q[1], q[2], q[3], q[4], q[5]); 1076 for (p = chost; *p == '0' && p < chost + 12; p++) 1077 continue; 1078 host = p; 1079 } 1080 1081 if (port) { 1082 if (strcmp(host, "*") == 0) 1083 host = ""; 1084 if (sp) 1085 snprintf(cport, sizeof(cport), 1086 "%s%s", *host ? "." : "", sp->s_name); 1087 else 1088 snprintf(cport, sizeof(cport), 1089 "%s%x", *host ? "." : "", port); 1090 } else 1091 *cport = 0; 1092 1093 snprintf(mybuf, sizeof(mybuf), "%s.%s%s", net, host, cport); 1094 return(mybuf); 1095 } 1096 1097 char * 1098 ipx_phost(struct sockaddr *sa) 1099 { 1100 struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa; 1101 struct sockaddr_ipx work; 1102 static union ipx_net ipx_zeronet; 1103 char *p; 1104 struct ipx_addr in; 1105 1106 work = *sipx; 1107 in = work.sipx_addr; 1108 1109 work.sipx_addr.x_port = 0; 1110 work.sipx_addr.x_net = ipx_zeronet; 1111 p = ipx_print((struct sockaddr *)&work); 1112 if (strncmp("*.", p, 2) == 0) p += 2; 1113 1114 return(p); 1115 } 1116 1117 void 1118 upHex(char *p0) 1119 { 1120 char *p = p0; 1121 1122 for (; *p; p++) 1123 switch (*p) { 1124 1125 case 'a': 1126 case 'b': 1127 case 'c': 1128 case 'd': 1129 case 'e': 1130 case 'f': 1131 *p += ('A' - 'a'); 1132 break; 1133 } 1134 } 1135