route.c revision 178912
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 178912 2008-05-10 09:22:17Z delphij $"); 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_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 106typedef union { 107 long dummy; /* Helps align structure. */ 108 struct sockaddr u_sa; 109 u_short u_data[128]; 110} sa_u; 111 112static sa_u pt_u; 113 114int fibnum; 115int do_rtent = 0; 116struct rtentry rtentry; 117struct radix_node rnode; 118struct radix_mask rmask; 119struct rtline { 120 struct radix_node_head *tables[AF_MAX+1]; /*xxx*/ 121}; 122struct rtline *rt_tables; 123 124struct radix_node_head *rt_tables_line[1][AF_MAX+1]; /*xxx*/ 125 126int NewTree = 0; 127 128struct timespec uptime; 129 130static struct sockaddr *kgetsa(struct sockaddr *); 131static void size_cols(int ef, struct radix_node *rn); 132static void size_cols_tree(struct radix_node *rn); 133static void size_cols_rtentry(struct rtentry *rt); 134static void p_tree(struct radix_node *); 135static void p_rtnode(void); 136static void ntreestuff(void); 137static void np_rtentry(struct rt_msghdr *); 138static void p_sockaddr(struct sockaddr *, struct sockaddr *, int, int); 139static const char *fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask, 140 int flags); 141static void p_flags(int, const char *); 142static const char *fmt_flags(int f); 143static void p_rtentry(struct rtentry *); 144static void domask(char *, in_addr_t, u_long); 145 146/* 147 * Print routing tables. 148 */ 149void 150routepr(u_long rtree) 151{ 152 struct radix_node_head *rnh, head; 153 int i; 154 int numfibs; 155 size_t intsize; 156 157 intsize = sizeof(int); 158 if (sysctlbyname("net.my_fibnum", &fibnum, &intsize, NULL, 0) == -1) 159 fibnum = 0; 160 if (sysctlbyname("net.fibs", &numfibs, &intsize, NULL, 0) == -1) 161 numfibs = 1; 162 rt_tables = calloc(numfibs, sizeof(struct rtline)); 163 if (rt_tables == NULL) 164 err(EX_OSERR, "memory allocation failed"); 165 /* 166 * Since kernel & userland use different timebase 167 * (time_uptime vs time_second) and we are reading kernel memory 168 * directly we should do rt_rmx.rmx_expire --> expire_time conversion. 169 */ 170 if (clock_gettime(CLOCK_UPTIME, &uptime) < 0) 171 err(EX_OSERR, "clock_gettime() failed"); 172 173 printf("Routing tables\n"); 174 175 if (Aflag == 0 && NewTree) 176 ntreestuff(); 177 else { 178 if (rtree == 0) { 179 printf("rt_tables: symbol not in namelist\n"); 180 return; 181 } 182 183 if (kread((u_long)(rtree), (char *)(rt_tables), 184 (numfibs * sizeof(struct rtline))) != 0) 185 return; 186 for (i = 0; i <= AF_MAX; i++) { 187 int tmpfib; 188 if (i != AF_INET) 189 tmpfib = 0; 190 else 191 tmpfib = fibnum; 192 if ((rnh = rt_tables[tmpfib].tables[i]) == 0) 193 continue; 194 if (kget(rnh, head) != 0) 195 continue; 196 if (i == AF_UNSPEC) { 197 if (Aflag && af == 0) { 198 printf("Netmasks:\n"); 199 p_tree(head.rnh_treetop); 200 } 201 } else if (af == AF_UNSPEC || af == i) { 202 size_cols(i, head.rnh_treetop); 203 pr_family(i); 204 do_rtent = 1; 205 pr_rthdr(i); 206 p_tree(head.rnh_treetop); 207 } 208 } 209 } 210} 211 212/* 213 * Print address family header before a section of the routing table. 214 */ 215void 216pr_family(int af1) 217{ 218 const char *afname; 219 220 switch (af1) { 221 case AF_INET: 222 afname = "Internet"; 223 break; 224#ifdef INET6 225 case AF_INET6: 226 afname = "Internet6"; 227 break; 228#endif /*INET6*/ 229 case AF_IPX: 230 afname = "IPX"; 231 break; 232 case AF_ISO: 233 afname = "ISO"; 234 break; 235 case AF_APPLETALK: 236 afname = "AppleTalk"; 237 break; 238 case AF_CCITT: 239 afname = "X.25"; 240 break; 241 case AF_NETGRAPH: 242 afname = "Netgraph"; 243 break; 244 default: 245 afname = NULL; 246 break; 247 } 248 if (afname) 249 printf("\n%s:\n", afname); 250 else 251 printf("\nProtocol Family %d:\n", af1); 252} 253 254/* column widths; each followed by one space */ 255#ifndef INET6 256#define WID_DST_DEFAULT(af) 18 /* width of destination column */ 257#define WID_GW_DEFAULT(af) 18 /* width of gateway column */ 258#define WID_IF_DEFAULT(af) (Wflag ? 8 : 6) /* width of netif column */ 259#else 260#define WID_DST_DEFAULT(af) \ 261 ((af) == AF_INET6 ? (numeric_addr ? 33: 18) : 18) 262#define WID_GW_DEFAULT(af) \ 263 ((af) == AF_INET6 ? (numeric_addr ? 29 : 18) : 18) 264#define WID_IF_DEFAULT(af) ((af) == AF_INET6 ? 8 : (Wflag ? 8 : 6)) 265#endif /*INET6*/ 266 267static int wid_dst; 268static int wid_gw; 269static int wid_flags; 270static int wid_refs; 271static int wid_use; 272static int wid_mtu; 273static int wid_if; 274static int wid_expire; 275 276static void 277size_cols(int ef __unused, struct radix_node *rn) 278{ 279 wid_dst = WID_DST_DEFAULT(ef); 280 wid_gw = WID_GW_DEFAULT(ef); 281 wid_flags = 6; 282 wid_refs = 6; 283 wid_use = 8; 284 wid_mtu = 6; 285 wid_if = WID_IF_DEFAULT(ef); 286 wid_expire = 6; 287 288 if (Wflag) 289 size_cols_tree(rn); 290} 291 292static void 293size_cols_tree(struct radix_node *rn) 294{ 295again: 296 if (kget(rn, rnode) != 0) 297 return; 298 if (!(rnode.rn_flags & RNF_ACTIVE)) 299 return; 300 if (rnode.rn_bit < 0) { 301 if ((rnode.rn_flags & RNF_ROOT) == 0) { 302 if (kget(rn, rtentry) != 0) 303 return; 304 size_cols_rtentry(&rtentry); 305 } 306 if ((rn = rnode.rn_dupedkey)) 307 goto again; 308 } else { 309 rn = rnode.rn_right; 310 size_cols_tree(rnode.rn_left); 311 size_cols_tree(rn); 312 } 313} 314 315static void 316size_cols_rtentry(struct rtentry *rt) 317{ 318 static struct ifnet ifnet, *lastif; 319 struct rtentry parent; 320 static char buffer[100]; 321 const char *bp; 322 struct sockaddr *sa; 323 sa_u addr, mask; 324 int len; 325 326 /* 327 * Don't print protocol-cloned routes unless -a. 328 */ 329 if (rt->rt_flags & RTF_WASCLONED && !aflag) { 330 if (kget(rt->rt_parent, parent) != 0) 331 return; 332 if (parent.rt_flags & RTF_PRCLONING) 333 return; 334 } 335 336 bzero(&addr, sizeof(addr)); 337 if ((sa = kgetsa(rt_key(rt)))) 338 bcopy(sa, &addr, sa->sa_len); 339 bzero(&mask, sizeof(mask)); 340 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 341 bcopy(sa, &mask, sa->sa_len); 342 bp = fmt_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags); 343 len = strlen(bp); 344 wid_dst = MAX(len, wid_dst); 345 346 bp = fmt_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST); 347 len = strlen(bp); 348 wid_gw = MAX(len, wid_gw); 349 350 bp = fmt_flags(rt->rt_flags); 351 len = strlen(bp); 352 wid_flags = MAX(len, wid_flags); 353 354 if (addr.u_sa.sa_family == AF_INET || Wflag) { 355 len = snprintf(buffer, sizeof(buffer), "%ld", rt->rt_refcnt); 356 wid_refs = MAX(len, wid_refs); 357 len = snprintf(buffer, sizeof(buffer), "%lu", rt->rt_use); 358 wid_use = MAX(len, wid_use); 359 if (Wflag && rt->rt_rmx.rmx_mtu != 0) { 360 len = snprintf(buffer, sizeof(buffer), 361 "%lu", rt->rt_rmx.rmx_mtu); 362 wid_mtu = MAX(len, wid_mtu); 363 } 364 } 365 if (rt->rt_ifp) { 366 if (rt->rt_ifp != lastif) { 367 if (kget(rt->rt_ifp, ifnet) == 0) 368 len = strlen(ifnet.if_xname); 369 else 370 len = strlen("---"); 371 lastif = rt->rt_ifp; 372 wid_if = MAX(len, wid_if); 373 } 374 if (rt->rt_rmx.rmx_expire) { 375 time_t expire_time; 376 377 if ((expire_time = 378 rt->rt_rmx.rmx_expire - uptime.tv_sec) > 0) { 379 len = snprintf(buffer, sizeof(buffer), "%d", 380 (int)expire_time); 381 wid_expire = MAX(len, wid_expire); 382 } 383 } 384 } 385} 386 387 388/* 389 * Print header for routing table columns. 390 */ 391void 392pr_rthdr(int af1) 393{ 394 395 if (Aflag) 396 printf("%-8.8s ","Address"); 397 if (af1 == AF_INET || Wflag) { 398 if (Wflag) { 399 printf("%-*.*s %-*.*s %-*.*s %*.*s %*.*s %*.*s %*.*s %*s\n", 400 wid_dst, wid_dst, "Destination", 401 wid_gw, wid_gw, "Gateway", 402 wid_flags, wid_flags, "Flags", 403 wid_refs, wid_refs, "Refs", 404 wid_use, wid_use, "Use", 405 wid_mtu, wid_mtu, "Mtu", 406 wid_if, wid_if, "Netif", 407 wid_expire, "Expire"); 408 } else { 409 printf("%-*.*s %-*.*s %-*.*s %*.*s %*.*s %*.*s %*s\n", 410 wid_dst, wid_dst, "Destination", 411 wid_gw, wid_gw, "Gateway", 412 wid_flags, wid_flags, "Flags", 413 wid_refs, wid_refs, "Refs", 414 wid_use, wid_use, "Use", 415 wid_if, wid_if, "Netif", 416 wid_expire, "Expire"); 417 } 418 } else { 419 printf("%-*.*s %-*.*s %-*.*s %*.*s %*s\n", 420 wid_dst, wid_dst, "Destination", 421 wid_gw, wid_gw, "Gateway", 422 wid_flags, wid_flags, "Flags", 423 wid_if, wid_if, "Netif", 424 wid_expire, "Expire"); 425 } 426} 427 428static struct sockaddr * 429kgetsa(struct sockaddr *dst) 430{ 431 432 if (kget(dst, pt_u.u_sa) != 0) 433 return (NULL); 434 if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa)) 435 kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len); 436 return (&pt_u.u_sa); 437} 438 439static void 440p_tree(struct radix_node *rn) 441{ 442 443again: 444 if (kget(rn, rnode) != 0) 445 return; 446 if (!(rnode.rn_flags & RNF_ACTIVE)) 447 return; 448 if (rnode.rn_bit < 0) { 449 if (Aflag) 450 printf("%-8.8lx ", (u_long)rn); 451 if (rnode.rn_flags & RNF_ROOT) { 452 if (Aflag) 453 printf("(root node)%s", 454 rnode.rn_dupedkey ? " =>\n" : "\n"); 455 } else if (do_rtent) { 456 if (kget(rn, rtentry) == 0) { 457 p_rtentry(&rtentry); 458 if (Aflag) 459 p_rtnode(); 460 } 461 } else { 462 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key), 463 NULL, 0, 44); 464 putchar('\n'); 465 } 466 if ((rn = rnode.rn_dupedkey)) 467 goto again; 468 } else { 469 if (Aflag && do_rtent) { 470 printf("%-8.8lx ", (u_long)rn); 471 p_rtnode(); 472 } 473 rn = rnode.rn_right; 474 p_tree(rnode.rn_left); 475 p_tree(rn); 476 } 477} 478 479char nbuf[20]; 480 481static void 482p_rtnode(void) 483{ 484 struct radix_mask *rm = rnode.rn_mklist; 485 486 if (rnode.rn_bit < 0) { 487 if (rnode.rn_mask) { 488 printf("\t mask "); 489 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask), 490 NULL, 0, -1); 491 } else if (rm == 0) 492 return; 493 } else { 494 sprintf(nbuf, "(%d)", rnode.rn_bit); 495 printf("%6.6s %8.8lx : %8.8lx", nbuf, (u_long)rnode.rn_left, (u_long)rnode.rn_right); 496 } 497 while (rm) { 498 if (kget(rm, rmask) != 0) 499 break; 500 sprintf(nbuf, " %d refs, ", rmask.rm_refs); 501 printf(" mk = %8.8lx {(%d),%s", 502 (u_long)rm, -1 - rmask.rm_bit, rmask.rm_refs ? nbuf : " "); 503 if (rmask.rm_flags & RNF_NORMAL) { 504 struct radix_node rnode_aux; 505 printf(" <normal>, "); 506 if (kget(rmask.rm_leaf, rnode_aux) == 0) 507 p_sockaddr(kgetsa((struct sockaddr *)rnode_aux.rn_mask), 508 NULL, 0, -1); 509 else 510 p_sockaddr(NULL, NULL, 0, -1); 511 } else 512 p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 513 NULL, 0, -1); 514 putchar('}'); 515 if ((rm = rmask.rm_mklist)) 516 printf(" ->"); 517 } 518 putchar('\n'); 519} 520 521static void 522ntreestuff(void) 523{ 524 size_t needed; 525 int mib[6]; 526 char *buf, *next, *lim; 527 struct rt_msghdr *rtm; 528 529 mib[0] = CTL_NET; 530 mib[1] = PF_ROUTE; 531 mib[2] = 0; 532 mib[3] = 0; 533 mib[4] = NET_RT_DUMP; 534 mib[5] = 0; 535 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) { 536 err(1, "sysctl: net.route.0.0.dump estimate"); 537 } 538 539 if ((buf = malloc(needed)) == 0) { 540 errx(2, "malloc(%lu)", (unsigned long)needed); 541 } 542 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { 543 err(1, "sysctl: net.route.0.0.dump"); 544 } 545 lim = buf + needed; 546 for (next = buf; next < lim; next += rtm->rtm_msglen) { 547 rtm = (struct rt_msghdr *)next; 548 np_rtentry(rtm); 549 } 550} 551 552static void 553np_rtentry(struct rt_msghdr *rtm) 554{ 555 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 556#ifdef notdef 557 static int masks_done, banner_printed; 558#endif 559 static int old_af; 560 int af1 = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST; 561 562#ifdef notdef 563 /* for the moment, netmasks are skipped over */ 564 if (!banner_printed) { 565 printf("Netmasks:\n"); 566 banner_printed = 1; 567 } 568 if (masks_done == 0) { 569 if (rtm->rtm_addrs != RTA_DST ) { 570 masks_done = 1; 571 af1 = sa->sa_family; 572 } 573 } else 574#endif 575 af1 = sa->sa_family; 576 if (af1 != old_af) { 577 pr_family(af1); 578 old_af = af1; 579 } 580 if (rtm->rtm_addrs == RTA_DST) 581 p_sockaddr(sa, NULL, 0, 36); 582 else { 583 p_sockaddr(sa, NULL, rtm->rtm_flags, 16); 584 sa = (struct sockaddr *)(SA_SIZE(sa) + (char *)sa); 585 p_sockaddr(sa, NULL, 0, 18); 586 } 587 p_flags(rtm->rtm_flags & interesting, "%-6.6s "); 588 putchar('\n'); 589} 590 591static void 592p_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags, int width) 593{ 594 const char *cp; 595 596 cp = fmt_sockaddr(sa, mask, flags); 597 598 if (width < 0 ) 599 printf("%s ", cp); 600 else { 601 if (numeric_addr) 602 printf("%-*s ", width, cp); 603 else 604 printf("%-*.*s ", width, width, cp); 605 } 606} 607 608static const char * 609fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags) 610{ 611 static char workbuf[128]; 612 const char *cp; 613 614 if (sa == NULL) 615 return ("null"); 616 617 switch(sa->sa_family) { 618 case AF_INET: 619 { 620 struct sockaddr_in *sockin = (struct sockaddr_in *)sa; 621 622 if ((sockin->sin_addr.s_addr == INADDR_ANY) && 623 mask && 624 ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr) 625 ==0L) 626 cp = "default" ; 627 else if (flags & RTF_HOST) 628 cp = routename(sockin->sin_addr.s_addr); 629 else if (mask) 630 cp = netname(sockin->sin_addr.s_addr, 631 ntohl(((struct sockaddr_in *)mask) 632 ->sin_addr.s_addr)); 633 else 634 cp = netname(sockin->sin_addr.s_addr, 0L); 635 break; 636 } 637 638#ifdef INET6 639 case AF_INET6: 640 { 641 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa; 642 struct in6_addr *in6 = &sa6->sin6_addr; 643 644 /* 645 * XXX: This is a special workaround for KAME kernels. 646 * sin6_scope_id field of SA should be set in the future. 647 */ 648 if (IN6_IS_ADDR_LINKLOCAL(in6) || 649 IN6_IS_ADDR_MC_LINKLOCAL(in6)) { 650 /* XXX: override is ok? */ 651 sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]); 652 *(u_short *)&in6->s6_addr[2] = 0; 653 } 654 655 if (flags & RTF_HOST) 656 cp = routename6(sa6); 657 else if (mask) 658 cp = netname6(sa6, 659 &((struct sockaddr_in6 *)mask)->sin6_addr); 660 else { 661 cp = netname6(sa6, NULL); 662 } 663 break; 664 } 665#endif /*INET6*/ 666 667 case AF_IPX: 668 { 669 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 670 if (ipx_nullnet(satoipx_addr(work))) 671 cp = "default"; 672 else 673 cp = ipx_print(sa); 674 break; 675 } 676 case AF_APPLETALK: 677 { 678 if (!(flags & RTF_HOST) && mask) 679 cp = atalk_print2(sa,mask,9); 680 else 681 cp = atalk_print(sa,11); 682 break; 683 } 684 case AF_NETGRAPH: 685 { 686 strlcpy(workbuf, ((struct sockaddr_ng *)sa)->sg_data, 687 sizeof(workbuf)); 688 cp = workbuf; 689 break; 690 } 691 692 case AF_LINK: 693 { 694 struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa; 695 696 if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && 697 sdl->sdl_slen == 0) { 698 (void) sprintf(workbuf, "link#%d", sdl->sdl_index); 699 cp = workbuf; 700 } else 701 switch (sdl->sdl_type) { 702 703 case IFT_ETHER: 704 case IFT_L2VLAN: 705 case IFT_BRIDGE: 706 if (sdl->sdl_alen == ETHER_ADDR_LEN) { 707 cp = ether_ntoa((struct ether_addr *) 708 (sdl->sdl_data + sdl->sdl_nlen)); 709 break; 710 } 711 /* FALLTHROUGH */ 712 default: 713 cp = link_ntoa(sdl); 714 break; 715 } 716 break; 717 } 718 719 default: 720 { 721 u_char *s = (u_char *)sa->sa_data, *slim; 722 char *cq, *cqlim; 723 724 cq = workbuf; 725 slim = sa->sa_len + (u_char *) sa; 726 cqlim = cq + sizeof(workbuf) - 6; 727 cq += sprintf(cq, "(%d)", sa->sa_family); 728 while (s < slim && cq < cqlim) { 729 cq += sprintf(cq, " %02x", *s++); 730 if (s < slim) 731 cq += sprintf(cq, "%02x", *s++); 732 } 733 cp = workbuf; 734 } 735 } 736 737 return (cp); 738} 739 740static void 741p_flags(int f, const char *format) 742{ 743 printf(format, fmt_flags(f)); 744} 745 746static const char * 747fmt_flags(int f) 748{ 749 static char name[33]; 750 char *flags; 751 struct bits *p = bits; 752 753 for (flags = name; p->b_mask; p++) 754 if (p->b_mask & f) 755 *flags++ = p->b_val; 756 *flags = '\0'; 757 return (name); 758} 759 760static void 761p_rtentry(struct rtentry *rt) 762{ 763 static struct ifnet ifnet, *lastif; 764 struct rtentry parent; 765 static char buffer[128]; 766 static char prettyname[128]; 767 struct sockaddr *sa; 768 sa_u addr, mask; 769 770 /* 771 * Don't print protocol-cloned routes unless -a. 772 */ 773 if (rt->rt_flags & RTF_WASCLONED && !aflag) { 774 if (kget(rt->rt_parent, parent) != 0) 775 return; 776 if (parent.rt_flags & RTF_PRCLONING) 777 return; 778 } 779 780 bzero(&addr, sizeof(addr)); 781 if ((sa = kgetsa(rt_key(rt)))) 782 bcopy(sa, &addr, sa->sa_len); 783 bzero(&mask, sizeof(mask)); 784 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 785 bcopy(sa, &mask, sa->sa_len); 786 p_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags, wid_dst); 787 p_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST, wid_gw); 788 snprintf(buffer, sizeof(buffer), "%%-%d.%ds ", wid_flags, wid_flags); 789 p_flags(rt->rt_flags, buffer); 790 if (addr.u_sa.sa_family == AF_INET || Wflag) { 791 printf("%*ld %*lu ", wid_refs, rt->rt_refcnt, 792 wid_use, rt->rt_use); 793 if (Wflag) { 794 if (rt->rt_rmx.rmx_mtu != 0) 795 printf("%*lu ", wid_mtu, rt->rt_rmx.rmx_mtu); 796 else 797 printf("%*s ", wid_mtu, ""); 798 } 799 } 800 if (rt->rt_ifp) { 801 if (rt->rt_ifp != lastif) { 802 if (kget(rt->rt_ifp, ifnet) == 0) 803 strlcpy(prettyname, ifnet.if_xname, 804 sizeof(prettyname)); 805 else 806 strlcpy(prettyname, "---", sizeof(prettyname)); 807 lastif = rt->rt_ifp; 808 } 809 printf("%*.*s", wid_if, wid_if, prettyname); 810 if (rt->rt_rmx.rmx_expire) { 811 time_t expire_time; 812 813 if ((expire_time = 814 rt->rt_rmx.rmx_expire - uptime.tv_sec) > 0) 815 printf(" %*d", wid_expire, (int)expire_time); 816 } 817 if (rt->rt_nodes[0].rn_dupedkey) 818 printf(" =>"); 819 } 820 putchar('\n'); 821} 822 823char * 824routename(in_addr_t in) 825{ 826 char *cp; 827 static char line[MAXHOSTNAMELEN]; 828 struct hostent *hp; 829 830 cp = 0; 831 if (!numeric_addr) { 832 hp = gethostbyaddr(&in, sizeof (struct in_addr), AF_INET); 833 if (hp) { 834 cp = hp->h_name; 835 trimdomain(cp, strlen(cp)); 836 } 837 } 838 if (cp) { 839 strncpy(line, cp, sizeof(line) - 1); 840 line[sizeof(line) - 1] = '\0'; 841 } else { 842#define C(x) ((x) & 0xff) 843 in = ntohl(in); 844 sprintf(line, "%u.%u.%u.%u", 845 C(in >> 24), C(in >> 16), C(in >> 8), C(in)); 846 } 847 return (line); 848} 849 850#define NSHIFT(m) ( \ 851 (m) == IN_CLASSA_NET ? IN_CLASSA_NSHIFT : \ 852 (m) == IN_CLASSB_NET ? IN_CLASSB_NSHIFT : \ 853 (m) == IN_CLASSC_NET ? IN_CLASSC_NSHIFT : \ 854 0) 855 856static void 857domask(char *dst, in_addr_t addr __unused, u_long mask) 858{ 859 int b, i; 860 861 if (mask == 0 || (!numeric_addr && NSHIFT(mask) != 0)) { 862 *dst = '\0'; 863 return; 864 } 865 i = 0; 866 for (b = 0; b < 32; b++) 867 if (mask & (1 << b)) { 868 int bb; 869 870 i = b; 871 for (bb = b+1; bb < 32; bb++) 872 if (!(mask & (1 << bb))) { 873 i = -1; /* noncontig */ 874 break; 875 } 876 break; 877 } 878 if (i == -1) 879 sprintf(dst, "&0x%lx", mask); 880 else 881 sprintf(dst, "/%d", 32-i); 882} 883 884/* 885 * Return the name of the network whose address is given. 886 * The address is assumed to be that of a net or subnet, not a host. 887 */ 888char * 889netname(in_addr_t in, u_long mask) 890{ 891 char *cp = 0; 892 static char line[MAXHOSTNAMELEN]; 893 struct netent *np = 0; 894 in_addr_t i; 895 896 i = ntohl(in); 897 if (!numeric_addr && i) { 898 np = getnetbyaddr(i >> NSHIFT(mask), AF_INET); 899 if (np != NULL) { 900 cp = np->n_name; 901 trimdomain(cp, strlen(cp)); 902 } 903 } 904 if (cp != NULL) { 905 strncpy(line, cp, sizeof(line) - 1); 906 line[sizeof(line) - 1] = '\0'; 907 } else { 908 inet_ntop(AF_INET, &in, line, sizeof(line) - 1); 909 } 910 domask(line + strlen(line), i, mask); 911 return (line); 912} 913 914#undef NSHIFT 915 916#ifdef INET6 917const char * 918netname6(struct sockaddr_in6 *sa6, struct in6_addr *mask) 919{ 920 static char line[MAXHOSTNAMELEN]; 921 u_char *p = (u_char *)mask; 922 u_char *lim; 923 int masklen, illegal = 0, flag = 0; 924 925 if (mask) { 926 for (masklen = 0, lim = p + 16; p < lim; p++) { 927 switch (*p) { 928 case 0xff: 929 masklen += 8; 930 break; 931 case 0xfe: 932 masklen += 7; 933 break; 934 case 0xfc: 935 masklen += 6; 936 break; 937 case 0xf8: 938 masklen += 5; 939 break; 940 case 0xf0: 941 masklen += 4; 942 break; 943 case 0xe0: 944 masklen += 3; 945 break; 946 case 0xc0: 947 masklen += 2; 948 break; 949 case 0x80: 950 masklen += 1; 951 break; 952 case 0x00: 953 break; 954 default: 955 illegal ++; 956 break; 957 } 958 } 959 if (illegal) 960 fprintf(stderr, "illegal prefixlen\n"); 961 } 962 else 963 masklen = 128; 964 965 if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr)) 966 return("default"); 967 968 if (numeric_addr) 969 flag |= NI_NUMERICHOST; 970 getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line), 971 NULL, 0, flag); 972 973 if (numeric_addr) 974 sprintf(&line[strlen(line)], "/%d", masklen); 975 976 return line; 977} 978 979char * 980routename6(struct sockaddr_in6 *sa6) 981{ 982 static char line[MAXHOSTNAMELEN]; 983 int flag = 0; 984 /* use local variable for safety */ 985 struct sockaddr_in6 sa6_local; 986 987 sa6_local.sin6_family = AF_INET6; 988 sa6_local.sin6_len = sizeof(sa6_local); 989 sa6_local.sin6_addr = sa6->sin6_addr; 990 sa6_local.sin6_scope_id = sa6->sin6_scope_id; 991 992 if (numeric_addr) 993 flag |= NI_NUMERICHOST; 994 995 getnameinfo((struct sockaddr *)&sa6_local, sa6_local.sin6_len, 996 line, sizeof(line), NULL, 0, flag); 997 998 return line; 999} 1000#endif /*INET6*/ 1001 1002/* 1003 * Print routing statistics 1004 */ 1005void 1006rt_stats(u_long rtsaddr, u_long rttaddr) 1007{ 1008 struct rtstat rtstat; 1009 int rttrash; 1010 1011 if (rtsaddr == 0) { 1012 printf("rtstat: symbol not in namelist\n"); 1013 return; 1014 } 1015 if (rttaddr == 0) { 1016 printf("rttrash: symbol not in namelist\n"); 1017 return; 1018 } 1019 kread(rtsaddr, (char *)&rtstat, sizeof (rtstat)); 1020 kread(rttaddr, (char *)&rttrash, sizeof (rttrash)); 1021 printf("routing:\n"); 1022 1023#define p(f, m) if (rtstat.f || sflag <= 1) \ 1024 printf(m, rtstat.f, plural(rtstat.f)) 1025 1026 p(rts_badredirect, "\t%u bad routing redirect%s\n"); 1027 p(rts_dynamic, "\t%u dynamically created route%s\n"); 1028 p(rts_newgateway, "\t%u new gateway%s due to redirects\n"); 1029 p(rts_unreach, "\t%u destination%s found unreachable\n"); 1030 p(rts_wildcard, "\t%u use%s of a wildcard route\n"); 1031#undef p 1032 1033 if (rttrash || sflag <= 1) 1034 printf("\t%u route%s not in table but not freed\n", 1035 rttrash, plural(rttrash)); 1036} 1037 1038char * 1039ipx_print(struct sockaddr *sa) 1040{ 1041 u_short port; 1042 struct servent *sp = 0; 1043 const char *net = "", *host = ""; 1044 char *p; 1045 u_char *q; 1046 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 1047 static char mybuf[50]; 1048 char cport[10], chost[15], cnet[15]; 1049 1050 port = ntohs(work.x_port); 1051 1052 if (ipx_nullnet(work) && ipx_nullhost(work)) { 1053 1054 if (port) { 1055 if (sp) 1056 sprintf(mybuf, "*.%s", sp->s_name); 1057 else 1058 sprintf(mybuf, "*.%x", port); 1059 } else 1060 sprintf(mybuf, "*.*"); 1061 1062 return (mybuf); 1063 } 1064 1065 if (ipx_wildnet(work)) 1066 net = "any"; 1067 else if (ipx_nullnet(work)) 1068 net = "*"; 1069 else { 1070 q = work.x_net.c_net; 1071 sprintf(cnet, "%02x%02x%02x%02x", 1072 q[0], q[1], q[2], q[3]); 1073 for (p = cnet; *p == '0' && p < cnet + 8; p++) 1074 continue; 1075 net = p; 1076 } 1077 1078 if (ipx_wildhost(work)) 1079 host = "any"; 1080 else if (ipx_nullhost(work)) 1081 host = "*"; 1082 else { 1083 q = work.x_host.c_host; 1084 sprintf(chost, "%02x%02x%02x%02x%02x%02x", 1085 q[0], q[1], q[2], q[3], q[4], q[5]); 1086 for (p = chost; *p == '0' && p < chost + 12; p++) 1087 continue; 1088 host = p; 1089 } 1090 1091 if (port) { 1092 if (strcmp(host, "*") == 0) 1093 host = ""; 1094 if (sp) 1095 snprintf(cport, sizeof(cport), 1096 "%s%s", *host ? "." : "", sp->s_name); 1097 else 1098 snprintf(cport, sizeof(cport), 1099 "%s%x", *host ? "." : "", port); 1100 } else 1101 *cport = 0; 1102 1103 snprintf(mybuf, sizeof(mybuf), "%s.%s%s", net, host, cport); 1104 return(mybuf); 1105} 1106 1107char * 1108ipx_phost(struct sockaddr *sa) 1109{ 1110 struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa; 1111 struct sockaddr_ipx work; 1112 static union ipx_net ipx_zeronet; 1113 char *p; 1114 struct ipx_addr in; 1115 1116 work = *sipx; 1117 in = work.sipx_addr; 1118 1119 work.sipx_addr.x_port = 0; 1120 work.sipx_addr.x_net = ipx_zeronet; 1121 p = ipx_print((struct sockaddr *)&work); 1122 if (strncmp("*.", p, 2) == 0) p += 2; 1123 1124 return(p); 1125} 1126 1127void 1128upHex(char *p0) 1129{ 1130 char *p = p0; 1131 1132 for (; *p; p++) 1133 switch (*p) { 1134 1135 case 'a': 1136 case 'b': 1137 case 'c': 1138 case 'd': 1139 case 'e': 1140 case 'f': 1141 *p += ('A' - 'a'); 1142 break; 1143 } 1144} 1145