route.c revision 186119
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 36static 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: head/usr.bin/netstat/route.c 186119 2008-12-15 06:10:57Z qingli $"); 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 */ 81struct 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_XRESOLVE, 'X' }, 93 { RTF_STATIC, 'S' }, 94 { RTF_PROTO1, '1' }, 95 { RTF_PROTO2, '2' }, 96 { RTF_PRCLONING,'c' }, 97 { RTF_PROTO3, '3' }, 98 { RTF_BLACKHOLE,'B' }, 99 { RTF_BROADCAST,'b' }, 100#ifdef RTF_LLINFO 101 { RTF_LLINFO, 'L' }, 102#endif 103#ifdef RTF_WASCLONED 104 { RTF_WASCLONED,'W' }, 105#endif 106#ifdef RTF_CLONING 107 { RTF_CLONING, 'C' }, 108#endif 109 { 0 , 0 } 110}; 111 112typedef union { 113 long dummy; /* Helps align structure. */ 114 struct sockaddr u_sa; 115 u_short u_data[128]; 116} sa_u; 117 118static sa_u pt_u; 119 120int fibnum; 121int do_rtent = 0; 122struct rtentry rtentry; 123struct radix_node rnode; 124struct radix_mask rmask; 125struct rtline { 126 struct radix_node_head *tables[AF_MAX+1]; /*xxx*/ 127}; 128struct rtline *rt_tables; 129 130struct radix_node_head *rt_tables_line[1][AF_MAX+1]; /*xxx*/ 131 132int NewTree = 0; 133 134struct timespec uptime; 135 136static struct sockaddr *kgetsa(struct sockaddr *); 137static void size_cols(int ef, struct radix_node *rn); 138static void size_cols_tree(struct radix_node *rn); 139static void size_cols_rtentry(struct rtentry *rt); 140static void p_tree(struct radix_node *); 141static void p_rtnode(void); 142static void ntreestuff(void); 143static void np_rtentry(struct rt_msghdr *); 144static void p_sockaddr(struct sockaddr *, struct sockaddr *, int, int); 145static const char *fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask, 146 int flags); 147static void p_flags(int, const char *); 148static const char *fmt_flags(int f); 149static void p_rtentry(struct rtentry *); 150static void domask(char *, in_addr_t, u_long); 151 152/* 153 * Print routing tables. 154 */ 155void 156routepr(u_long rtree) 157{ 158 struct radix_node_head *rnh, head; 159 size_t intsize; 160 int i; 161 int numfibs; 162 163 intsize = sizeof(int); 164 if (sysctlbyname("net.my_fibnum", &fibnum, &intsize, NULL, 0) == -1) 165 fibnum = 0; 166 if (sysctlbyname("net.fibs", &numfibs, &intsize, NULL, 0) == -1) 167 numfibs = 1; 168 rt_tables = calloc(numfibs, sizeof(struct rtline)); 169 if (rt_tables == NULL) 170 err(EX_OSERR, "memory allocation failed"); 171 /* 172 * Since kernel & userland use different timebase 173 * (time_uptime vs time_second) and we are reading kernel memory 174 * directly we should do rt_rmx.rmx_expire --> expire_time conversion. 175 */ 176 if (clock_gettime(CLOCK_UPTIME, &uptime) < 0) 177 err(EX_OSERR, "clock_gettime() failed"); 178 179 printf("Routing tables\n"); 180 181 if (Aflag == 0 && NewTree) 182 ntreestuff(); 183 else { 184 if (rtree == 0) { 185 printf("rt_tables: symbol not in namelist\n"); 186 return; 187 } 188 189 if (kread((u_long)(rtree), (char *)(rt_tables), 190 (numfibs * sizeof(struct rtline))) != 0) 191 return; 192 for (i = 0; i <= AF_MAX; i++) { 193 int tmpfib; 194 if (i != AF_INET) 195 tmpfib = 0; 196 else 197 tmpfib = fibnum; 198 if ((rnh = rt_tables[tmpfib].tables[i]) == 0) 199 continue; 200 if (kget(rnh, head) != 0) 201 continue; 202 if (i == AF_UNSPEC) { 203 if (Aflag && af == 0) { 204 printf("Netmasks:\n"); 205 p_tree(head.rnh_treetop); 206 } 207 } else if (af == AF_UNSPEC || af == i) { 208 size_cols(i, head.rnh_treetop); 209 pr_family(i); 210 do_rtent = 1; 211 pr_rthdr(i); 212 p_tree(head.rnh_treetop); 213 } 214 } 215 } 216} 217 218/* 219 * Print address family header before a section of the routing table. 220 */ 221void 222pr_family(int af1) 223{ 224 const char *afname; 225 226 switch (af1) { 227 case AF_INET: 228 afname = "Internet"; 229 break; 230#ifdef INET6 231 case AF_INET6: 232 afname = "Internet6"; 233 break; 234#endif /*INET6*/ 235 case AF_IPX: 236 afname = "IPX"; 237 break; 238 case AF_ISO: 239 afname = "ISO"; 240 break; 241 case AF_APPLETALK: 242 afname = "AppleTalk"; 243 break; 244 case AF_CCITT: 245 afname = "X.25"; 246 break; 247 case AF_NETGRAPH: 248 afname = "Netgraph"; 249 break; 250 default: 251 afname = NULL; 252 break; 253 } 254 if (afname) 255 printf("\n%s:\n", afname); 256 else 257 printf("\nProtocol Family %d:\n", af1); 258} 259 260/* column widths; each followed by one space */ 261#ifndef INET6 262#define WID_DST_DEFAULT(af) 18 /* width of destination column */ 263#define WID_GW_DEFAULT(af) 18 /* width of gateway column */ 264#define WID_IF_DEFAULT(af) (Wflag ? 8 : 6) /* width of netif column */ 265#else 266#define WID_DST_DEFAULT(af) \ 267 ((af) == AF_INET6 ? (numeric_addr ? 33: 18) : 18) 268#define WID_GW_DEFAULT(af) \ 269 ((af) == AF_INET6 ? (numeric_addr ? 29 : 18) : 18) 270#define WID_IF_DEFAULT(af) ((af) == AF_INET6 ? 8 : (Wflag ? 8 : 6)) 271#endif /*INET6*/ 272 273static int wid_dst; 274static int wid_gw; 275static int wid_flags; 276static int wid_refs; 277static int wid_use; 278static int wid_mtu; 279static int wid_if; 280static int wid_expire; 281 282static void 283size_cols(int ef __unused, struct radix_node *rn) 284{ 285 wid_dst = WID_DST_DEFAULT(ef); 286 wid_gw = WID_GW_DEFAULT(ef); 287 wid_flags = 6; 288 wid_refs = 6; 289 wid_use = 8; 290 wid_mtu = 6; 291 wid_if = WID_IF_DEFAULT(ef); 292 wid_expire = 6; 293 294 if (Wflag) 295 size_cols_tree(rn); 296} 297 298static void 299size_cols_tree(struct radix_node *rn) 300{ 301again: 302 if (kget(rn, rnode) != 0) 303 return; 304 if (!(rnode.rn_flags & RNF_ACTIVE)) 305 return; 306 if (rnode.rn_bit < 0) { 307 if ((rnode.rn_flags & RNF_ROOT) == 0) { 308 if (kget(rn, rtentry) != 0) 309 return; 310 size_cols_rtentry(&rtentry); 311 } 312 if ((rn = rnode.rn_dupedkey)) 313 goto again; 314 } else { 315 rn = rnode.rn_right; 316 size_cols_tree(rnode.rn_left); 317 size_cols_tree(rn); 318 } 319} 320 321static void 322size_cols_rtentry(struct rtentry *rt) 323{ 324 static struct ifnet ifnet, *lastif; 325 static char buffer[100]; 326 const char *bp; 327 struct sockaddr *sa; 328 sa_u addr, mask; 329 int len; 330 331 bzero(&addr, sizeof(addr)); 332 if ((sa = kgetsa(rt_key(rt)))) 333 bcopy(sa, &addr, sa->sa_len); 334 bzero(&mask, sizeof(mask)); 335 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 336 bcopy(sa, &mask, sa->sa_len); 337 bp = fmt_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags); 338 len = strlen(bp); 339 wid_dst = MAX(len, wid_dst); 340 341 bp = fmt_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST); 342 len = strlen(bp); 343 wid_gw = MAX(len, wid_gw); 344 345 bp = fmt_flags(rt->rt_flags); 346 len = strlen(bp); 347 wid_flags = MAX(len, wid_flags); 348 349 if (addr.u_sa.sa_family == AF_INET || Wflag) { 350 len = snprintf(buffer, sizeof(buffer), "%d", rt->rt_refcnt); 351 wid_refs = MAX(len, wid_refs); 352 len = snprintf(buffer, sizeof(buffer), "%lu", rt->rt_use); 353 wid_use = MAX(len, wid_use); 354 if (Wflag && rt->rt_rmx.rmx_mtu != 0) { 355 len = snprintf(buffer, sizeof(buffer), 356 "%lu", rt->rt_rmx.rmx_mtu); 357 wid_mtu = MAX(len, wid_mtu); 358 } 359 } 360 if (rt->rt_ifp) { 361 if (rt->rt_ifp != lastif) { 362 if (kget(rt->rt_ifp, ifnet) == 0) 363 len = strlen(ifnet.if_xname); 364 else 365 len = strlen("---"); 366 lastif = rt->rt_ifp; 367 wid_if = MAX(len, wid_if); 368 } 369 if (rt->rt_rmx.rmx_expire) { 370 time_t expire_time; 371 372 if ((expire_time = 373 rt->rt_rmx.rmx_expire - uptime.tv_sec) > 0) { 374 len = snprintf(buffer, sizeof(buffer), "%d", 375 (int)expire_time); 376 wid_expire = MAX(len, wid_expire); 377 } 378 } 379 } 380} 381 382 383/* 384 * Print header for routing table columns. 385 */ 386void 387pr_rthdr(int af1) 388{ 389 390 if (Aflag) 391 printf("%-8.8s ","Address"); 392 if (af1 == AF_INET || Wflag) { 393 if (Wflag) { 394 printf("%-*.*s %-*.*s %-*.*s %*.*s %*.*s %*.*s %*.*s %*s\n", 395 wid_dst, wid_dst, "Destination", 396 wid_gw, wid_gw, "Gateway", 397 wid_flags, wid_flags, "Flags", 398 wid_refs, wid_refs, "Refs", 399 wid_use, wid_use, "Use", 400 wid_mtu, wid_mtu, "Mtu", 401 wid_if, wid_if, "Netif", 402 wid_expire, "Expire"); 403 } else { 404 printf("%-*.*s %-*.*s %-*.*s %*.*s %*.*s %*.*s %*s\n", 405 wid_dst, wid_dst, "Destination", 406 wid_gw, wid_gw, "Gateway", 407 wid_flags, wid_flags, "Flags", 408 wid_refs, wid_refs, "Refs", 409 wid_use, wid_use, "Use", 410 wid_if, wid_if, "Netif", 411 wid_expire, "Expire"); 412 } 413 } else { 414 printf("%-*.*s %-*.*s %-*.*s %*.*s %*s\n", 415 wid_dst, wid_dst, "Destination", 416 wid_gw, wid_gw, "Gateway", 417 wid_flags, wid_flags, "Flags", 418 wid_if, wid_if, "Netif", 419 wid_expire, "Expire"); 420 } 421} 422 423static struct sockaddr * 424kgetsa(struct sockaddr *dst) 425{ 426 427 if (kget(dst, pt_u.u_sa) != 0) 428 return (NULL); 429 if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa)) 430 kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len); 431 return (&pt_u.u_sa); 432} 433 434static void 435p_tree(struct radix_node *rn) 436{ 437 438again: 439 if (kget(rn, rnode) != 0) 440 return; 441 if (!(rnode.rn_flags & RNF_ACTIVE)) 442 return; 443 if (rnode.rn_bit < 0) { 444 if (Aflag) 445 printf("%-8.8lx ", (u_long)rn); 446 if (rnode.rn_flags & RNF_ROOT) { 447 if (Aflag) 448 printf("(root node)%s", 449 rnode.rn_dupedkey ? " =>\n" : "\n"); 450 } else if (do_rtent) { 451 if (kget(rn, rtentry) == 0) { 452 p_rtentry(&rtentry); 453 if (Aflag) 454 p_rtnode(); 455 } 456 } else { 457 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key), 458 NULL, 0, 44); 459 putchar('\n'); 460 } 461 if ((rn = rnode.rn_dupedkey)) 462 goto again; 463 } else { 464 if (Aflag && do_rtent) { 465 printf("%-8.8lx ", (u_long)rn); 466 p_rtnode(); 467 } 468 rn = rnode.rn_right; 469 p_tree(rnode.rn_left); 470 p_tree(rn); 471 } 472} 473 474char nbuf[20]; 475 476static void 477p_rtnode(void) 478{ 479 struct radix_mask *rm = rnode.rn_mklist; 480 481 if (rnode.rn_bit < 0) { 482 if (rnode.rn_mask) { 483 printf("\t mask "); 484 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask), 485 NULL, 0, -1); 486 } else if (rm == 0) 487 return; 488 } else { 489 sprintf(nbuf, "(%d)", rnode.rn_bit); 490 printf("%6.6s %8.8lx : %8.8lx", nbuf, (u_long)rnode.rn_left, (u_long)rnode.rn_right); 491 } 492 while (rm) { 493 if (kget(rm, rmask) != 0) 494 break; 495 sprintf(nbuf, " %d refs, ", rmask.rm_refs); 496 printf(" mk = %8.8lx {(%d),%s", 497 (u_long)rm, -1 - rmask.rm_bit, rmask.rm_refs ? nbuf : " "); 498 if (rmask.rm_flags & RNF_NORMAL) { 499 struct radix_node rnode_aux; 500 printf(" <normal>, "); 501 if (kget(rmask.rm_leaf, rnode_aux) == 0) 502 p_sockaddr(kgetsa((struct sockaddr *)rnode_aux.rn_mask), 503 NULL, 0, -1); 504 else 505 p_sockaddr(NULL, NULL, 0, -1); 506 } else 507 p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 508 NULL, 0, -1); 509 putchar('}'); 510 if ((rm = rmask.rm_mklist)) 511 printf(" ->"); 512 } 513 putchar('\n'); 514} 515 516static void 517ntreestuff(void) 518{ 519 size_t needed; 520 int mib[6]; 521 char *buf, *next, *lim; 522 struct rt_msghdr *rtm; 523 524 mib[0] = CTL_NET; 525 mib[1] = PF_ROUTE; 526 mib[2] = 0; 527 mib[3] = 0; 528 mib[4] = NET_RT_DUMP; 529 mib[5] = 0; 530 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) { 531 err(1, "sysctl: net.route.0.0.dump estimate"); 532 } 533 534 if ((buf = malloc(needed)) == 0) { 535 errx(2, "malloc(%lu)", (unsigned long)needed); 536 } 537 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { 538 err(1, "sysctl: net.route.0.0.dump"); 539 } 540 lim = buf + needed; 541 for (next = buf; next < lim; next += rtm->rtm_msglen) { 542 rtm = (struct rt_msghdr *)next; 543 np_rtentry(rtm); 544 } 545} 546 547static void 548np_rtentry(struct rt_msghdr *rtm) 549{ 550 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 551#ifdef notdef 552 static int masks_done, banner_printed; 553#endif 554 static int old_af; 555 int af1 = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST; 556 557#ifdef notdef 558 /* for the moment, netmasks are skipped over */ 559 if (!banner_printed) { 560 printf("Netmasks:\n"); 561 banner_printed = 1; 562 } 563 if (masks_done == 0) { 564 if (rtm->rtm_addrs != RTA_DST ) { 565 masks_done = 1; 566 af1 = sa->sa_family; 567 } 568 } else 569#endif 570 af1 = sa->sa_family; 571 if (af1 != old_af) { 572 pr_family(af1); 573 old_af = af1; 574 } 575 if (rtm->rtm_addrs == RTA_DST) 576 p_sockaddr(sa, NULL, 0, 36); 577 else { 578 p_sockaddr(sa, NULL, rtm->rtm_flags, 16); 579 sa = (struct sockaddr *)(SA_SIZE(sa) + (char *)sa); 580 p_sockaddr(sa, NULL, 0, 18); 581 } 582 p_flags(rtm->rtm_flags & interesting, "%-6.6s "); 583 putchar('\n'); 584} 585 586static void 587p_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags, int width) 588{ 589 const char *cp; 590 591 cp = fmt_sockaddr(sa, mask, flags); 592 593 if (width < 0 ) 594 printf("%s ", cp); 595 else { 596 if (numeric_addr) 597 printf("%-*s ", width, cp); 598 else 599 printf("%-*.*s ", width, width, cp); 600 } 601} 602 603static const char * 604fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags) 605{ 606 static char workbuf[128]; 607 const char *cp; 608 609 if (sa == NULL) 610 return ("null"); 611 612 switch(sa->sa_family) { 613 case AF_INET: 614 { 615 struct sockaddr_in *sockin = (struct sockaddr_in *)sa; 616 617 if ((sockin->sin_addr.s_addr == INADDR_ANY) && 618 mask && 619 ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr) 620 ==0L) 621 cp = "default" ; 622 else if (flags & RTF_HOST) 623 cp = routename(sockin->sin_addr.s_addr); 624 else if (mask) 625 cp = netname(sockin->sin_addr.s_addr, 626 ntohl(((struct sockaddr_in *)mask) 627 ->sin_addr.s_addr)); 628 else 629 cp = netname(sockin->sin_addr.s_addr, 0L); 630 break; 631 } 632 633#ifdef INET6 634 case AF_INET6: 635 { 636 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa; 637 struct in6_addr *in6 = &sa6->sin6_addr; 638 639 /* 640 * XXX: This is a special workaround for KAME kernels. 641 * sin6_scope_id field of SA should be set in the future. 642 */ 643 if (IN6_IS_ADDR_LINKLOCAL(in6) || 644 IN6_IS_ADDR_MC_LINKLOCAL(in6)) { 645 /* XXX: override is ok? */ 646 sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]); 647 *(u_short *)&in6->s6_addr[2] = 0; 648 } 649 650 if (flags & RTF_HOST) 651 cp = routename6(sa6); 652 else if (mask) 653 cp = netname6(sa6, 654 &((struct sockaddr_in6 *)mask)->sin6_addr); 655 else { 656 cp = netname6(sa6, NULL); 657 } 658 break; 659 } 660#endif /*INET6*/ 661 662 case AF_IPX: 663 { 664 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 665 if (ipx_nullnet(satoipx_addr(work))) 666 cp = "default"; 667 else 668 cp = ipx_print(sa); 669 break; 670 } 671 case AF_APPLETALK: 672 { 673 if (!(flags & RTF_HOST) && mask) 674 cp = atalk_print2(sa,mask,9); 675 else 676 cp = atalk_print(sa,11); 677 break; 678 } 679 case AF_NETGRAPH: 680 { 681 strlcpy(workbuf, ((struct sockaddr_ng *)sa)->sg_data, 682 sizeof(workbuf)); 683 cp = workbuf; 684 break; 685 } 686 687 case AF_LINK: 688 { 689 struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa; 690 691 if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && 692 sdl->sdl_slen == 0) { 693 (void) sprintf(workbuf, "link#%d", sdl->sdl_index); 694 cp = workbuf; 695 } else 696 switch (sdl->sdl_type) { 697 698 case IFT_ETHER: 699 case IFT_L2VLAN: 700 case IFT_BRIDGE: 701 if (sdl->sdl_alen == ETHER_ADDR_LEN) { 702 cp = ether_ntoa((struct ether_addr *) 703 (sdl->sdl_data + sdl->sdl_nlen)); 704 break; 705 } 706 /* FALLTHROUGH */ 707 default: 708 cp = link_ntoa(sdl); 709 break; 710 } 711 break; 712 } 713 714 default: 715 { 716 u_char *s = (u_char *)sa->sa_data, *slim; 717 char *cq, *cqlim; 718 719 cq = workbuf; 720 slim = sa->sa_len + (u_char *) sa; 721 cqlim = cq + sizeof(workbuf) - 6; 722 cq += sprintf(cq, "(%d)", sa->sa_family); 723 while (s < slim && cq < cqlim) { 724 cq += sprintf(cq, " %02x", *s++); 725 if (s < slim) 726 cq += sprintf(cq, "%02x", *s++); 727 } 728 cp = workbuf; 729 } 730 } 731 732 return (cp); 733} 734 735static void 736p_flags(int f, const char *format) 737{ 738 printf(format, fmt_flags(f)); 739} 740 741static const char * 742fmt_flags(int f) 743{ 744 static char name[33]; 745 char *flags; 746 struct bits *p = bits; 747 748 for (flags = name; p->b_mask; p++) 749 if (p->b_mask & f) 750 *flags++ = p->b_val; 751 *flags = '\0'; 752 return (name); 753} 754 755static void 756p_rtentry(struct rtentry *rt) 757{ 758 static struct ifnet ifnet, *lastif; 759 static char buffer[128]; 760 static char prettyname[128]; 761 struct sockaddr *sa; 762 sa_u addr, mask; 763 764 bzero(&addr, sizeof(addr)); 765 if ((sa = kgetsa(rt_key(rt)))) 766 bcopy(sa, &addr, sa->sa_len); 767 bzero(&mask, sizeof(mask)); 768 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 769 bcopy(sa, &mask, sa->sa_len); 770 p_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags, wid_dst); 771 p_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST, wid_gw); 772 snprintf(buffer, sizeof(buffer), "%%-%d.%ds ", wid_flags, wid_flags); 773 p_flags(rt->rt_flags, buffer); 774 if (addr.u_sa.sa_family == AF_INET || Wflag) { 775 printf("%*d %*lu ", wid_refs, rt->rt_refcnt, 776 wid_use, rt->rt_use); 777 if (Wflag) { 778 if (rt->rt_rmx.rmx_mtu != 0) 779 printf("%*lu ", wid_mtu, rt->rt_rmx.rmx_mtu); 780 else 781 printf("%*s ", wid_mtu, ""); 782 } 783 } 784 if (rt->rt_ifp) { 785 if (rt->rt_ifp != lastif) { 786 if (kget(rt->rt_ifp, ifnet) == 0) 787 strlcpy(prettyname, ifnet.if_xname, 788 sizeof(prettyname)); 789 else 790 strlcpy(prettyname, "---", sizeof(prettyname)); 791 lastif = rt->rt_ifp; 792 } 793 printf("%*.*s", wid_if, wid_if, prettyname); 794 if (rt->rt_rmx.rmx_expire) { 795 time_t expire_time; 796 797 if ((expire_time = 798 rt->rt_rmx.rmx_expire - uptime.tv_sec) > 0) 799 printf(" %*d", wid_expire, (int)expire_time); 800 } 801 if (rt->rt_nodes[0].rn_dupedkey) 802 printf(" =>"); 803 } 804 putchar('\n'); 805} 806 807char * 808routename(in_addr_t in) 809{ 810 char *cp; 811 static char line[MAXHOSTNAMELEN]; 812 struct hostent *hp; 813 814 cp = 0; 815 if (!numeric_addr) { 816 hp = gethostbyaddr(&in, sizeof (struct in_addr), AF_INET); 817 if (hp) { 818 cp = hp->h_name; 819 trimdomain(cp, strlen(cp)); 820 } 821 } 822 if (cp) { 823 strlcpy(line, cp, sizeof(line)); 824 } else { 825#define C(x) ((x) & 0xff) 826 in = ntohl(in); 827 sprintf(line, "%u.%u.%u.%u", 828 C(in >> 24), C(in >> 16), C(in >> 8), C(in)); 829 } 830 return (line); 831} 832 833#define NSHIFT(m) ( \ 834 (m) == IN_CLASSA_NET ? IN_CLASSA_NSHIFT : \ 835 (m) == IN_CLASSB_NET ? IN_CLASSB_NSHIFT : \ 836 (m) == IN_CLASSC_NET ? IN_CLASSC_NSHIFT : \ 837 0) 838 839static void 840domask(char *dst, in_addr_t addr __unused, u_long mask) 841{ 842 int b, i; 843 844 if (mask == 0 || (!numeric_addr && NSHIFT(mask) != 0)) { 845 *dst = '\0'; 846 return; 847 } 848 i = 0; 849 for (b = 0; b < 32; b++) 850 if (mask & (1 << b)) { 851 int bb; 852 853 i = b; 854 for (bb = b+1; bb < 32; bb++) 855 if (!(mask & (1 << bb))) { 856 i = -1; /* noncontig */ 857 break; 858 } 859 break; 860 } 861 if (i == -1) 862 sprintf(dst, "&0x%lx", mask); 863 else 864 sprintf(dst, "/%d", 32-i); 865} 866 867/* 868 * Return the name of the network whose address is given. 869 * The address is assumed to be that of a net or subnet, not a host. 870 */ 871char * 872netname(in_addr_t in, u_long mask) 873{ 874 char *cp = 0; 875 static char line[MAXHOSTNAMELEN]; 876 struct netent *np = 0; 877 in_addr_t i; 878 879 i = ntohl(in); 880 if (!numeric_addr && i) { 881 np = getnetbyaddr(i >> NSHIFT(mask), AF_INET); 882 if (np != NULL) { 883 cp = np->n_name; 884 trimdomain(cp, strlen(cp)); 885 } 886 } 887 if (cp != NULL) { 888 strlcpy(line, cp, sizeof(line)); 889 } else { 890 inet_ntop(AF_INET, &in, line, sizeof(line) - 1); 891 } 892 domask(line + strlen(line), i, mask); 893 return (line); 894} 895 896#undef NSHIFT 897 898#ifdef INET6 899const char * 900netname6(struct sockaddr_in6 *sa6, struct in6_addr *mask) 901{ 902 static char line[MAXHOSTNAMELEN]; 903 u_char *p = (u_char *)mask; 904 u_char *lim; 905 int masklen, illegal = 0, flag = 0; 906 907 if (mask) { 908 for (masklen = 0, lim = p + 16; p < lim; p++) { 909 switch (*p) { 910 case 0xff: 911 masklen += 8; 912 break; 913 case 0xfe: 914 masklen += 7; 915 break; 916 case 0xfc: 917 masklen += 6; 918 break; 919 case 0xf8: 920 masklen += 5; 921 break; 922 case 0xf0: 923 masklen += 4; 924 break; 925 case 0xe0: 926 masklen += 3; 927 break; 928 case 0xc0: 929 masklen += 2; 930 break; 931 case 0x80: 932 masklen += 1; 933 break; 934 case 0x00: 935 break; 936 default: 937 illegal ++; 938 break; 939 } 940 } 941 if (illegal) 942 fprintf(stderr, "illegal prefixlen\n"); 943 } 944 else 945 masklen = 128; 946 947 if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr)) 948 return("default"); 949 950 if (numeric_addr) 951 flag |= NI_NUMERICHOST; 952 getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line), 953 NULL, 0, flag); 954 955 if (numeric_addr) 956 sprintf(&line[strlen(line)], "/%d", masklen); 957 958 return line; 959} 960 961char * 962routename6(struct sockaddr_in6 *sa6) 963{ 964 static char line[MAXHOSTNAMELEN]; 965 int flag = 0; 966 /* use local variable for safety */ 967 struct sockaddr_in6 sa6_local; 968 969 sa6_local.sin6_family = AF_INET6; 970 sa6_local.sin6_len = sizeof(sa6_local); 971 sa6_local.sin6_addr = sa6->sin6_addr; 972 sa6_local.sin6_scope_id = sa6->sin6_scope_id; 973 974 if (numeric_addr) 975 flag |= NI_NUMERICHOST; 976 977 getnameinfo((struct sockaddr *)&sa6_local, sa6_local.sin6_len, 978 line, sizeof(line), NULL, 0, flag); 979 980 return line; 981} 982#endif /*INET6*/ 983 984/* 985 * Print routing statistics 986 */ 987void 988rt_stats(u_long rtsaddr, u_long rttaddr) 989{ 990 struct rtstat rtstat; 991 int rttrash; 992 993 if (rtsaddr == 0) { 994 printf("rtstat: symbol not in namelist\n"); 995 return; 996 } 997 if (rttaddr == 0) { 998 printf("rttrash: symbol not in namelist\n"); 999 return; 1000 } 1001 kread(rtsaddr, (char *)&rtstat, sizeof (rtstat)); 1002 kread(rttaddr, (char *)&rttrash, sizeof (rttrash)); 1003 printf("routing:\n"); 1004 1005#define p(f, m) if (rtstat.f || sflag <= 1) \ 1006 printf(m, rtstat.f, plural(rtstat.f)) 1007 1008 p(rts_badredirect, "\t%u bad routing redirect%s\n"); 1009 p(rts_dynamic, "\t%u dynamically created route%s\n"); 1010 p(rts_newgateway, "\t%u new gateway%s due to redirects\n"); 1011 p(rts_unreach, "\t%u destination%s found unreachable\n"); 1012 p(rts_wildcard, "\t%u use%s of a wildcard route\n"); 1013#undef p 1014 1015 if (rttrash || sflag <= 1) 1016 printf("\t%u route%s not in table but not freed\n", 1017 rttrash, plural(rttrash)); 1018} 1019 1020char * 1021ipx_print(struct sockaddr *sa) 1022{ 1023 u_short port; 1024 struct servent *sp = 0; 1025 const char *net = "", *host = ""; 1026 char *p; 1027 u_char *q; 1028 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 1029 static char mybuf[50]; 1030 char cport[10], chost[15], cnet[15]; 1031 1032 port = ntohs(work.x_port); 1033 1034 if (ipx_nullnet(work) && ipx_nullhost(work)) { 1035 1036 if (port) { 1037 if (sp) 1038 sprintf(mybuf, "*.%s", sp->s_name); 1039 else 1040 sprintf(mybuf, "*.%x", port); 1041 } else 1042 sprintf(mybuf, "*.*"); 1043 1044 return (mybuf); 1045 } 1046 1047 if (ipx_wildnet(work)) 1048 net = "any"; 1049 else if (ipx_nullnet(work)) 1050 net = "*"; 1051 else { 1052 q = work.x_net.c_net; 1053 sprintf(cnet, "%02x%02x%02x%02x", 1054 q[0], q[1], q[2], q[3]); 1055 for (p = cnet; *p == '0' && p < cnet + 8; p++) 1056 continue; 1057 net = p; 1058 } 1059 1060 if (ipx_wildhost(work)) 1061 host = "any"; 1062 else if (ipx_nullhost(work)) 1063 host = "*"; 1064 else { 1065 q = work.x_host.c_host; 1066 sprintf(chost, "%02x%02x%02x%02x%02x%02x", 1067 q[0], q[1], q[2], q[3], q[4], q[5]); 1068 for (p = chost; *p == '0' && p < chost + 12; p++) 1069 continue; 1070 host = p; 1071 } 1072 1073 if (port) { 1074 if (strcmp(host, "*") == 0) 1075 host = ""; 1076 if (sp) 1077 snprintf(cport, sizeof(cport), 1078 "%s%s", *host ? "." : "", sp->s_name); 1079 else 1080 snprintf(cport, sizeof(cport), 1081 "%s%x", *host ? "." : "", port); 1082 } else 1083 *cport = 0; 1084 1085 snprintf(mybuf, sizeof(mybuf), "%s.%s%s", net, host, cport); 1086 return(mybuf); 1087} 1088 1089char * 1090ipx_phost(struct sockaddr *sa) 1091{ 1092 struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa; 1093 struct sockaddr_ipx work; 1094 static union ipx_net ipx_zeronet; 1095 char *p; 1096 struct ipx_addr in; 1097 1098 work = *sipx; 1099 in = work.sipx_addr; 1100 1101 work.sipx_addr.x_port = 0; 1102 work.sipx_addr.x_net = ipx_zeronet; 1103 p = ipx_print((struct sockaddr *)&work); 1104 if (strncmp("*.", p, 2) == 0) p += 2; 1105 1106 return(p); 1107} 1108 1109void 1110upHex(char *p0) 1111{ 1112 char *p = p0; 1113 1114 for (; *p; p++) 1115 switch (*p) { 1116 1117 case 'a': 1118 case 'b': 1119 case 'c': 1120 case 'd': 1121 case 'e': 1122 case 'f': 1123 *p += ('A' - 'a'); 1124 break; 1125 } 1126} 1127