route.c revision 216370
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 32static 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: head/usr.bin/netstat/route.c 216370 2010-12-11 08:32:16Z joel $"); 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 */ 77struct 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 108typedef union { 109 long dummy; /* Helps align structure. */ 110 struct sockaddr u_sa; 111 u_short u_data[128]; 112} sa_u; 113 114static sa_u pt_u; 115 116int fibnum; 117int do_rtent = 0; 118struct rtentry rtentry; 119struct radix_node rnode; 120struct radix_mask rmask; 121struct radix_node_head **rt_tables; 122 123int NewTree = 0; 124 125struct timespec uptime; 126 127static struct sockaddr *kgetsa(struct sockaddr *); 128static void size_cols(int ef, struct radix_node *rn); 129static void size_cols_tree(struct radix_node *rn); 130static void size_cols_rtentry(struct rtentry *rt); 131static void p_tree(struct radix_node *); 132static void p_rtnode(void); 133static void ntreestuff(void); 134static void np_rtentry(struct rt_msghdr *); 135static void p_sockaddr(struct sockaddr *, struct sockaddr *, int, int); 136static const char *fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask, 137 int flags); 138static void p_flags(int, const char *); 139static const char *fmt_flags(int f); 140static void p_rtentry(struct rtentry *); 141static void domask(char *, in_addr_t, u_long); 142 143/* 144 * Print routing tables. 145 */ 146void 147routepr(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 */ 220void 221pr_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 272static int wid_dst; 273static int wid_gw; 274static int wid_flags; 275static int wid_refs; 276static int wid_use; 277static int wid_mtu; 278static int wid_if; 279static int wid_expire; 280 281static void 282size_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 297static void 298size_cols_tree(struct radix_node *rn) 299{ 300again: 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 320static void 321size_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 */ 385void 386pr_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 422static struct sockaddr * 423kgetsa(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 433static void 434p_tree(struct radix_node *rn) 435{ 436 437again: 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 473char nbuf[20]; 474 475static void 476p_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 515static void 516ntreestuff(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 546static void 547np_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 585static void 586p_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 602static const char * 603fmt_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 struct in6_addr *in6 = &sa6->sin6_addr; 637 638 /* 639 * XXX: This is a special workaround for KAME kernels. 640 * sin6_scope_id field of SA should be set in the future. 641 */ 642 if (IN6_IS_ADDR_LINKLOCAL(in6) || 643 IN6_IS_ADDR_MC_LINKLOCAL(in6)) { 644 /* XXX: override is ok? */ 645 sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]); 646 *(u_short *)&in6->s6_addr[2] = 0; 647 } 648 649 if (flags & RTF_HOST) 650 cp = routename6(sa6); 651 else if (mask) 652 cp = netname6(sa6, 653 &((struct sockaddr_in6 *)mask)->sin6_addr); 654 else { 655 cp = netname6(sa6, NULL); 656 } 657 break; 658 } 659#endif /*INET6*/ 660 661 case AF_IPX: 662 { 663 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 664 if (ipx_nullnet(satoipx_addr(work))) 665 cp = "default"; 666 else 667 cp = ipx_print(sa); 668 break; 669 } 670 case AF_APPLETALK: 671 { 672 if (!(flags & RTF_HOST) && mask) 673 cp = atalk_print2(sa,mask,9); 674 else 675 cp = atalk_print(sa,11); 676 break; 677 } 678 case AF_NETGRAPH: 679 { 680 strlcpy(workbuf, ((struct sockaddr_ng *)sa)->sg_data, 681 sizeof(workbuf)); 682 cp = workbuf; 683 break; 684 } 685 686 case AF_LINK: 687 { 688 struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa; 689 690 if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && 691 sdl->sdl_slen == 0) { 692 (void) sprintf(workbuf, "link#%d", sdl->sdl_index); 693 cp = workbuf; 694 } else 695 switch (sdl->sdl_type) { 696 697 case IFT_ETHER: 698 case IFT_L2VLAN: 699 case IFT_BRIDGE: 700 if (sdl->sdl_alen == ETHER_ADDR_LEN) { 701 cp = ether_ntoa((struct ether_addr *) 702 (sdl->sdl_data + sdl->sdl_nlen)); 703 break; 704 } 705 /* FALLTHROUGH */ 706 default: 707 cp = link_ntoa(sdl); 708 break; 709 } 710 break; 711 } 712 713 default: 714 { 715 u_char *s = (u_char *)sa->sa_data, *slim; 716 char *cq, *cqlim; 717 718 cq = workbuf; 719 slim = sa->sa_len + (u_char *) sa; 720 cqlim = cq + sizeof(workbuf) - 6; 721 cq += sprintf(cq, "(%d)", sa->sa_family); 722 while (s < slim && cq < cqlim) { 723 cq += sprintf(cq, " %02x", *s++); 724 if (s < slim) 725 cq += sprintf(cq, "%02x", *s++); 726 } 727 cp = workbuf; 728 } 729 } 730 731 return (cp); 732} 733 734static void 735p_flags(int f, const char *format) 736{ 737 printf(format, fmt_flags(f)); 738} 739 740static const char * 741fmt_flags(int f) 742{ 743 static char name[33]; 744 char *flags; 745 struct bits *p = bits; 746 747 for (flags = name; p->b_mask; p++) 748 if (p->b_mask & f) 749 *flags++ = p->b_val; 750 *flags = '\0'; 751 return (name); 752} 753 754static void 755p_rtentry(struct rtentry *rt) 756{ 757 static struct ifnet ifnet, *lastif; 758 static char buffer[128]; 759 static char prettyname[128]; 760 struct sockaddr *sa; 761 sa_u addr, mask; 762 763 bzero(&addr, sizeof(addr)); 764 if ((sa = kgetsa(rt_key(rt)))) 765 bcopy(sa, &addr, sa->sa_len); 766 bzero(&mask, sizeof(mask)); 767 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 768 bcopy(sa, &mask, sa->sa_len); 769 p_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags, wid_dst); 770 p_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST, wid_gw); 771 snprintf(buffer, sizeof(buffer), "%%-%d.%ds ", wid_flags, wid_flags); 772 p_flags(rt->rt_flags, buffer); 773 if (addr.u_sa.sa_family == AF_INET || Wflag) { 774 printf("%*d %*lu ", wid_refs, rt->rt_refcnt, 775 wid_use, rt->rt_use); 776 if (Wflag) { 777 if (rt->rt_rmx.rmx_mtu != 0) 778 printf("%*lu ", wid_mtu, rt->rt_rmx.rmx_mtu); 779 else 780 printf("%*s ", wid_mtu, ""); 781 } 782 } 783 if (rt->rt_ifp) { 784 if (rt->rt_ifp != lastif) { 785 if (kget(rt->rt_ifp, ifnet) == 0) 786 strlcpy(prettyname, ifnet.if_xname, 787 sizeof(prettyname)); 788 else 789 strlcpy(prettyname, "---", sizeof(prettyname)); 790 lastif = rt->rt_ifp; 791 } 792 printf("%*.*s", wid_if, wid_if, prettyname); 793 if (rt->rt_rmx.rmx_expire) { 794 time_t expire_time; 795 796 if ((expire_time = 797 rt->rt_rmx.rmx_expire - uptime.tv_sec) > 0) 798 printf(" %*d", wid_expire, (int)expire_time); 799 } 800 if (rt->rt_nodes[0].rn_dupedkey) 801 printf(" =>"); 802 } 803 putchar('\n'); 804} 805 806char * 807routename(in_addr_t in) 808{ 809 char *cp; 810 static char line[MAXHOSTNAMELEN]; 811 struct hostent *hp; 812 813 cp = 0; 814 if (!numeric_addr) { 815 hp = gethostbyaddr(&in, sizeof (struct in_addr), AF_INET); 816 if (hp) { 817 cp = hp->h_name; 818 trimdomain(cp, strlen(cp)); 819 } 820 } 821 if (cp) { 822 strlcpy(line, cp, sizeof(line)); 823 } else { 824#define C(x) ((x) & 0xff) 825 in = ntohl(in); 826 sprintf(line, "%u.%u.%u.%u", 827 C(in >> 24), C(in >> 16), C(in >> 8), C(in)); 828 } 829 return (line); 830} 831 832#define NSHIFT(m) ( \ 833 (m) == IN_CLASSA_NET ? IN_CLASSA_NSHIFT : \ 834 (m) == IN_CLASSB_NET ? IN_CLASSB_NSHIFT : \ 835 (m) == IN_CLASSC_NET ? IN_CLASSC_NSHIFT : \ 836 0) 837 838static void 839domask(char *dst, in_addr_t addr __unused, u_long mask) 840{ 841 int b, i; 842 843 if (mask == 0 || (!numeric_addr && NSHIFT(mask) != 0)) { 844 *dst = '\0'; 845 return; 846 } 847 i = 0; 848 for (b = 0; b < 32; b++) 849 if (mask & (1 << b)) { 850 int bb; 851 852 i = b; 853 for (bb = b+1; bb < 32; bb++) 854 if (!(mask & (1 << bb))) { 855 i = -1; /* noncontig */ 856 break; 857 } 858 break; 859 } 860 if (i == -1) 861 sprintf(dst, "&0x%lx", mask); 862 else 863 sprintf(dst, "/%d", 32-i); 864} 865 866/* 867 * Return the name of the network whose address is given. 868 * The address is assumed to be that of a net or subnet, not a host. 869 */ 870char * 871netname(in_addr_t in, u_long mask) 872{ 873 char *cp = 0; 874 static char line[MAXHOSTNAMELEN]; 875 struct netent *np = 0; 876 in_addr_t i; 877 878 i = ntohl(in); 879 if (!numeric_addr && i) { 880 np = getnetbyaddr(i >> NSHIFT(mask), AF_INET); 881 if (np != NULL) { 882 cp = np->n_name; 883 trimdomain(cp, strlen(cp)); 884 } 885 } 886 if (cp != NULL) { 887 strlcpy(line, cp, sizeof(line)); 888 } else { 889 inet_ntop(AF_INET, &in, line, sizeof(line) - 1); 890 } 891 domask(line + strlen(line), i, mask); 892 return (line); 893} 894 895#undef NSHIFT 896 897#ifdef INET6 898const char * 899netname6(struct sockaddr_in6 *sa6, struct in6_addr *mask) 900{ 901 static char line[MAXHOSTNAMELEN]; 902 u_char *p = (u_char *)mask; 903 u_char *lim; 904 int masklen, illegal = 0, flag = 0; 905 906 if (mask) { 907 for (masklen = 0, lim = p + 16; p < lim; p++) { 908 switch (*p) { 909 case 0xff: 910 masklen += 8; 911 break; 912 case 0xfe: 913 masklen += 7; 914 break; 915 case 0xfc: 916 masklen += 6; 917 break; 918 case 0xf8: 919 masklen += 5; 920 break; 921 case 0xf0: 922 masklen += 4; 923 break; 924 case 0xe0: 925 masklen += 3; 926 break; 927 case 0xc0: 928 masklen += 2; 929 break; 930 case 0x80: 931 masklen += 1; 932 break; 933 case 0x00: 934 break; 935 default: 936 illegal ++; 937 break; 938 } 939 } 940 if (illegal) 941 fprintf(stderr, "illegal prefixlen\n"); 942 } 943 else 944 masklen = 128; 945 946 if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr)) 947 return("default"); 948 949 if (numeric_addr) 950 flag |= NI_NUMERICHOST; 951 getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line), 952 NULL, 0, flag); 953 954 if (numeric_addr) 955 sprintf(&line[strlen(line)], "/%d", masklen); 956 957 return line; 958} 959 960char * 961routename6(struct sockaddr_in6 *sa6) 962{ 963 static char line[MAXHOSTNAMELEN]; 964 int flag = 0; 965 /* use local variable for safety */ 966 struct sockaddr_in6 sa6_local; 967 968 sa6_local.sin6_family = AF_INET6; 969 sa6_local.sin6_len = sizeof(sa6_local); 970 sa6_local.sin6_addr = sa6->sin6_addr; 971 sa6_local.sin6_scope_id = sa6->sin6_scope_id; 972 973 if (numeric_addr) 974 flag |= NI_NUMERICHOST; 975 976 getnameinfo((struct sockaddr *)&sa6_local, sa6_local.sin6_len, 977 line, sizeof(line), NULL, 0, flag); 978 979 return line; 980} 981#endif /*INET6*/ 982 983/* 984 * Print routing statistics 985 */ 986void 987rt_stats(u_long rtsaddr, u_long rttaddr) 988{ 989 struct rtstat rtstat; 990 int rttrash; 991 992 if (rtsaddr == 0) { 993 printf("rtstat: symbol not in namelist\n"); 994 return; 995 } 996 if (rttaddr == 0) { 997 printf("rttrash: symbol not in namelist\n"); 998 return; 999 } 1000 kread(rtsaddr, (char *)&rtstat, sizeof (rtstat)); 1001 kread(rttaddr, (char *)&rttrash, sizeof (rttrash)); 1002 printf("routing:\n"); 1003 1004#define p(f, m) if (rtstat.f || sflag <= 1) \ 1005 printf(m, rtstat.f, plural(rtstat.f)) 1006 1007 p(rts_badredirect, "\t%hu bad routing redirect%s\n"); 1008 p(rts_dynamic, "\t%hu dynamically created route%s\n"); 1009 p(rts_newgateway, "\t%hu new gateway%s due to redirects\n"); 1010 p(rts_unreach, "\t%hu destination%s found unreachable\n"); 1011 p(rts_wildcard, "\t%hu use%s of a wildcard route\n"); 1012#undef p 1013 1014 if (rttrash || sflag <= 1) 1015 printf("\t%u route%s not in table but not freed\n", 1016 rttrash, plural(rttrash)); 1017} 1018 1019char * 1020ipx_print(struct sockaddr *sa) 1021{ 1022 u_short port; 1023 struct servent *sp = 0; 1024 const char *net = "", *host = ""; 1025 char *p; 1026 u_char *q; 1027 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 1028 static char mybuf[50]; 1029 char cport[10], chost[15], cnet[15]; 1030 1031 port = ntohs(work.x_port); 1032 1033 if (ipx_nullnet(work) && ipx_nullhost(work)) { 1034 1035 if (port) { 1036 if (sp) 1037 sprintf(mybuf, "*.%s", sp->s_name); 1038 else 1039 sprintf(mybuf, "*.%x", port); 1040 } else 1041 sprintf(mybuf, "*.*"); 1042 1043 return (mybuf); 1044 } 1045 1046 if (ipx_wildnet(work)) 1047 net = "any"; 1048 else if (ipx_nullnet(work)) 1049 net = "*"; 1050 else { 1051 q = work.x_net.c_net; 1052 sprintf(cnet, "%02x%02x%02x%02x", 1053 q[0], q[1], q[2], q[3]); 1054 for (p = cnet; *p == '0' && p < cnet + 8; p++) 1055 continue; 1056 net = p; 1057 } 1058 1059 if (ipx_wildhost(work)) 1060 host = "any"; 1061 else if (ipx_nullhost(work)) 1062 host = "*"; 1063 else { 1064 q = work.x_host.c_host; 1065 sprintf(chost, "%02x%02x%02x%02x%02x%02x", 1066 q[0], q[1], q[2], q[3], q[4], q[5]); 1067 for (p = chost; *p == '0' && p < chost + 12; p++) 1068 continue; 1069 host = p; 1070 } 1071 1072 if (port) { 1073 if (strcmp(host, "*") == 0) 1074 host = ""; 1075 if (sp) 1076 snprintf(cport, sizeof(cport), 1077 "%s%s", *host ? "." : "", sp->s_name); 1078 else 1079 snprintf(cport, sizeof(cport), 1080 "%s%x", *host ? "." : "", port); 1081 } else 1082 *cport = 0; 1083 1084 snprintf(mybuf, sizeof(mybuf), "%s.%s%s", net, host, cport); 1085 return(mybuf); 1086} 1087 1088char * 1089ipx_phost(struct sockaddr *sa) 1090{ 1091 struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa; 1092 struct sockaddr_ipx work; 1093 static union ipx_net ipx_zeronet; 1094 char *p; 1095 struct ipx_addr in; 1096 1097 work = *sipx; 1098 in = work.sipx_addr; 1099 1100 work.sipx_addr.x_port = 0; 1101 work.sipx_addr.x_net = ipx_zeronet; 1102 p = ipx_print((struct sockaddr *)&work); 1103 if (strncmp("*.", p, 2) == 0) p += 2; 1104 1105 return(p); 1106} 1107 1108void 1109upHex(char *p0) 1110{ 1111 char *p = p0; 1112 1113 for (; *p; p++) 1114 switch (*p) { 1115 1116 case 'a': 1117 case 'b': 1118 case 'c': 1119 case 'd': 1120 case 'e': 1121 case 'f': 1122 *p += ('A' - 'a'); 1123 break; 1124 } 1125} 1126