route.c revision 1.95
1 /* $NetBSD: route.c,v 1.95 2006/01/25 16:29:10 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1989, 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT("@(#) Copyright (c) 1983, 1989, 1991, 1993\n\ 35 The Regents of the University of California. All rights reserved.\n"); 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "@(#)route.c 8.6 (Berkeley) 4/28/95"; 41 #else 42 __RCSID("$NetBSD: route.c,v 1.95 2006/01/25 16:29:10 christos Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #include <sys/param.h> 47 #include <sys/file.h> 48 #include <sys/socket.h> 49 #include <sys/ioctl.h> 50 #include <sys/mbuf.h> 51 #include <sys/sysctl.h> 52 53 #include <net/if.h> 54 #include <net/route.h> 55 #include <net/if_dl.h> 56 #include <net80211/ieee80211_netbsd.h> 57 #include <netinet/in.h> 58 #include <netatalk/at.h> 59 #include <netns/ns.h> 60 #include <netiso/iso.h> 61 #include <netccitt/x25.h> 62 #include <arpa/inet.h> 63 #include <netdb.h> 64 65 #include <errno.h> 66 #include <unistd.h> 67 #include <stdio.h> 68 #include <ctype.h> 69 #include <stdlib.h> 70 #include <string.h> 71 #include <time.h> 72 #include <paths.h> 73 #include <err.h> 74 75 #include "keywords.h" 76 #include "extern.h" 77 78 typedef union sockunion *sup; 79 80 static char *any_ntoa(const struct sockaddr *); 81 static const char *route_strerror(int); 82 static void set_metric(char *, int); 83 static int newroute(int, char **); 84 static void inet_makenetandmask(u_int32_t, struct sockaddr_in *); 85 #ifdef INET6 86 static int inet6_makenetandmask(struct sockaddr_in6 *); 87 #endif 88 static int getaddr(int, char *, struct hostent **); 89 static int flushroutes(int, char *[], int); 90 static int prefixlen(const char *); 91 #ifndef SMALL 92 static int x25_makemask(void); 93 static void interfaces(void); 94 static void monitor(void); 95 static int print_getmsg(struct rt_msghdr *, int); 96 static const char *linkstate(struct if_msghdr *); 97 #endif /* SMALL */ 98 static int rtmsg(int, int ); 99 static void mask_addr(void); 100 static void print_rtmsg(struct rt_msghdr *, int); 101 static void pmsg_common(struct rt_msghdr *); 102 static void pmsg_addrs(char *, int); 103 static void bprintf(FILE *, int, const char *); 104 static void sodump(sup, const char *); 105 static void sockaddr(char *, struct sockaddr *); 106 107 union sockunion { 108 struct sockaddr sa; 109 struct sockaddr_in sin; 110 #ifdef INET6 111 struct sockaddr_in6 sin6; 112 #endif 113 struct sockaddr_at sat; 114 struct sockaddr_dl sdl; 115 #ifndef SMALL 116 struct sockaddr_ns sns; 117 struct sockaddr_iso siso; 118 struct sockaddr_x25 sx25; 119 #endif /* SMALL */ 120 } so_dst, so_gate, so_mask, so_genmask, so_ifa, so_ifp; 121 122 int pid, rtm_addrs; 123 int sock; 124 int forcehost, forcenet, doflush, nflag, af, qflag, tflag, Sflag; 125 int iflag, verbose, aflen = sizeof(struct sockaddr_in); 126 int locking, lockrest, debugonly, shortoutput; 127 struct rt_metrics rt_metrics; 128 u_int32_t rtm_inits; 129 short ns_nullh[] = {0,0,0}; 130 short ns_bh[] = {-1,-1,-1}; 131 132 133 void 134 usage(const char *cp) 135 { 136 137 if (cp) 138 warnx("botched keyword: %s", cp); 139 (void)fprintf(stderr, 140 "Usage: %s [ -fnqsSv ] cmd [[ -<qualifers> ] args ]\n", 141 getprogname()); 142 exit(1); 143 /* NOTREACHED */ 144 } 145 146 #define PRIETHER "02x:%02x:%02x:%02x:%02x:%02x" 147 #define PRIETHER_ARGS(__enaddr) (__enaddr)[0], (__enaddr)[1], (__enaddr)[2], \ 148 (__enaddr)[3], (__enaddr)[4], (__enaddr)[5] 149 #define ROUNDUP(a) \ 150 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long)) 151 #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len)) 152 153 int 154 main(int argc, char **argv) 155 { 156 int ch; 157 158 if (argc < 2) 159 usage(NULL); 160 161 while ((ch = getopt(argc, argv, "dfnqsStv")) != -1) 162 switch (ch) { 163 case 'd': 164 debugonly = 1; 165 break; 166 case 'f': 167 doflush = 1; 168 break; 169 case 'n': 170 nflag = 1; 171 break; 172 case 'q': 173 qflag = 1; 174 break; 175 case 's': 176 shortoutput = 1; 177 break; 178 case 'S': 179 Sflag = 1; 180 break; 181 case 't': 182 tflag = 1; 183 break; 184 case 'v': 185 verbose = 1; 186 break; 187 case '?': 188 default: 189 usage(NULL); 190 /*NOTREACHED*/ 191 } 192 argc -= optind; 193 argv += optind; 194 195 pid = getpid(); 196 if (tflag) 197 sock = open("/dev/null", O_WRONLY, 0); 198 else 199 sock = socket(PF_ROUTE, SOCK_RAW, 0); 200 if (sock < 0) 201 err(1, "socket"); 202 203 if (*argv == NULL) { 204 if (doflush) 205 ch = K_FLUSH; 206 else 207 goto no_cmd; 208 } else 209 ch = keyword(*argv); 210 211 switch (ch) { 212 #ifndef SMALL 213 case K_GET: 214 #endif /* SMALL */ 215 case K_CHANGE: 216 case K_ADD: 217 case K_DELETE: 218 if (doflush) 219 (void)flushroutes(1, argv, 0); 220 return newroute(argc, argv); 221 222 case K_SHOW: 223 show(argc, argv); 224 return 0; 225 226 #ifndef SMALL 227 case K_MONITOR: 228 monitor(); 229 return 0; 230 231 #endif /* SMALL */ 232 case K_FLUSH: 233 return flushroutes(argc, argv, 0); 234 235 case K_FLUSHALL: 236 return flushroutes(argc, argv, 1); 237 no_cmd: 238 default: 239 usage(*argv); 240 /*NOTREACHED*/ 241 } 242 } 243 244 /* 245 * Purge all entries in the routing tables not 246 * associated with network interfaces. 247 */ 248 static int 249 flushroutes(int argc, char *argv[], int doall) 250 { 251 size_t needed; 252 int mib[6], rlen, seqno; 253 char *buf, *next, *lim; 254 struct rt_msghdr *rtm; 255 256 af = 0; 257 shutdown(sock, SHUT_RD); /* Don't want to read back our messages */ 258 if (argc > 1) { 259 argv++; 260 if (argc == 2 && **argv == '-') 261 switch (keyword(*argv + 1)) { 262 case K_INET: 263 af = AF_INET; 264 break; 265 #ifdef INET6 266 case K_INET6: 267 af = AF_INET6; 268 break; 269 #endif 270 #ifndef SMALL 271 case K_ATALK: 272 af = AF_APPLETALK; 273 break; 274 case K_XNS: 275 af = AF_NS; 276 break; 277 #endif /* SMALL */ 278 case K_LINK: 279 af = AF_LINK; 280 break; 281 #ifndef SMALL 282 case K_ISO: 283 case K_OSI: 284 af = AF_ISO; 285 break; 286 case K_X25: 287 af = AF_CCITT; 288 #endif /* SMALL */ 289 default: 290 goto bad; 291 } else 292 bad: usage(*argv); 293 } 294 mib[0] = CTL_NET; 295 mib[1] = PF_ROUTE; 296 mib[2] = 0; /* protocol */ 297 mib[3] = 0; /* wildcard address family */ 298 mib[4] = NET_RT_DUMP; 299 mib[5] = 0; /* no flags */ 300 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 301 err(1, "route-sysctl-estimate"); 302 buf = lim = NULL; 303 if (needed) { 304 if ((buf = malloc(needed)) == NULL) 305 err(1, "malloc"); 306 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) 307 err(1, "actual retrieval of routing table"); 308 lim = buf + needed; 309 } 310 if (verbose) { 311 (void)printf("Examining routing table from sysctl\n"); 312 if (af) 313 printf("(address family %s)\n", (*argv + 1)); 314 } 315 if (needed == 0) 316 return 0; 317 seqno = 0; /* ??? */ 318 for (next = buf; next < lim; next += rtm->rtm_msglen) { 319 rtm = (struct rt_msghdr *)next; 320 if (verbose) 321 print_rtmsg(rtm, rtm->rtm_msglen); 322 if (!(rtm->rtm_flags & (RTF_GATEWAY | RTF_STATIC | 323 RTF_LLINFO)) && !doall) 324 continue; 325 if (af) { 326 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 327 328 if (sa->sa_family != af) 329 continue; 330 } 331 if (debugonly) 332 continue; 333 rtm->rtm_type = RTM_DELETE; 334 rtm->rtm_seq = seqno; 335 if ((rlen = write(sock, next, rtm->rtm_msglen)) < 0) { 336 warnx("writing to routing socket: %s", 337 route_strerror(errno)); 338 return 1; 339 } 340 if (rlen < (int)rtm->rtm_msglen) { 341 warnx("write to routing socket, got %d for rlen", rlen); 342 return 1; 343 } 344 seqno++; 345 if (qflag) 346 continue; 347 if (verbose) 348 print_rtmsg(rtm, rlen); 349 else { 350 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 351 (void)printf("%-20.20s ", 352 routename(sa, NULL, rtm->rtm_flags)); 353 sa = (struct sockaddr *)(ROUNDUP(sa->sa_len) + (char *)sa); 354 (void)printf("%-20.20s ", 355 routename(sa, NULL, RTF_HOST)); 356 (void)printf("done\n"); 357 } 358 } 359 free(buf); 360 return 0; 361 } 362 363 364 static char hexlist[] = "0123456789abcdef"; 365 366 static char * 367 any_ntoa(const struct sockaddr *sa) 368 { 369 static char obuf[3 * 256]; 370 const char *in; 371 char *out; 372 int len; 373 374 #if __GNUC__ > 2 375 len = sa->sa_len - offsetof(struct sockaddr, sa_data); 376 #else 377 len = sa->sa_len - ((struct sockaddr*)&sa->sa_data - sa); 378 #endif 379 in = sa->sa_data; 380 out = obuf; 381 382 do { 383 *out++ = hexlist[(*in >> 4) & 15]; 384 *out++ = hexlist[(*in++) & 15]; 385 *out++ = '.'; 386 } while (--len > 0); 387 out[-1] = '\0'; 388 return obuf; 389 } 390 391 int 392 netmask_length(struct sockaddr *nm, int family) 393 { 394 static int 395 /* number of bits in a nibble */ 396 _t[] = { 0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4 }, 397 /* good nibbles are 1111, 1110, 1100, 1000, 0000 */ 398 _g[] = { 1,0,0,0,0,0,0,0,1,0,0,0,1,0,1,1 }; 399 int mask, good, zeroes, maskbytes, bit, i; 400 unsigned char *maskdata; 401 402 if (nm == NULL) 403 return 0; 404 405 mask = 0; 406 good = 1; 407 zeroes = 0; 408 409 switch (family) { 410 case AF_INET: { 411 struct sockaddr_in *nsin = (struct sockaddr_in *)nm; 412 maskdata = (unsigned char *)&nsin->sin_addr; 413 maskbytes = nsin->sin_len - 414 ((caddr_t)&nsin->sin_addr - (caddr_t)nsin); 415 break; 416 } 417 case AF_INET6: { 418 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)nm; 419 maskdata = (unsigned char *)&sin6->sin6_addr; 420 maskbytes = sin6->sin6_len - 421 ((caddr_t)&sin6->sin6_addr - (caddr_t)sin6); 422 break; 423 } 424 default: 425 return 0; 426 } 427 428 /* 429 * Count the bits in the nibbles of the mask, and marking the 430 * netmask as not good (or at best, non-standard and very 431 * discouraged, in the case of AF_INET) if we find either of 432 * a nibble with non-contiguous bits, or a non-zero nibble 433 * after we've found a zero nibble. 434 */ 435 for (i = 0; i < maskbytes; i++) { 436 /* high nibble */ 437 mask += bit = _t[maskdata[i] >> 4]; 438 good &= _g[maskdata[i] >> 4]; 439 if (zeroes && bit) 440 good = 0; 441 if (bit == 0) 442 zeroes = 1; 443 /* low nibble */ 444 mask += bit = _t[maskdata[i] & 0xf]; 445 good &= _g[maskdata[i] & 0xf]; 446 if (zeroes && bit) 447 good = 0; 448 if (bit == 0) 449 zeroes = 1; 450 } 451 452 /* 453 * Always return the number of bits found, but as a negative 454 * if the mask wasn't one we like. 455 */ 456 return good ? mask : -mask; 457 } 458 459 char * 460 netmask_string(struct sockaddr *mask, int len, int family) 461 { 462 static char smask[INET6_ADDRSTRLEN]; 463 struct sockaddr_in nsin; 464 struct sockaddr_in6 nsin6; 465 466 if (len >= 0) 467 snprintf(smask, sizeof(smask), "%d", len); 468 else { 469 switch (family) { 470 case AF_INET: 471 memset(&nsin, 0, sizeof(nsin)); 472 memcpy(&nsin, mask, mask->sa_len); 473 snprintf(smask, sizeof(smask), "%s", 474 inet_ntoa(nsin.sin_addr)); 475 break; 476 case AF_INET6: 477 memset(&nsin6, 0, sizeof(nsin6)); 478 memcpy(&nsin6, mask, mask->sa_len); 479 inet_ntop(family, &nsin6.sin6_addr, smask, 480 sizeof(smask)); 481 break; 482 default: 483 snprintf(smask, sizeof(smask), "%s", any_ntoa(mask)); 484 } 485 } 486 487 return smask; 488 } 489 490 const char * 491 routename(struct sockaddr *sa, struct sockaddr *nm, int flags) 492 { 493 const char *cp; 494 static char line[50]; 495 struct hostent *hp; 496 static char domain[MAXHOSTNAMELEN + 1]; 497 static int first = 1; 498 struct in_addr in; 499 int nml; 500 501 if ((flags & RTF_HOST) == 0) 502 return netname(sa, nm); 503 504 if (first) { 505 first = 0; 506 if (gethostname(domain, MAXHOSTNAMELEN) == 0 && 507 (cp = strchr(domain, '.'))) 508 (void)strlcpy(domain, cp + 1, sizeof(domain)); 509 else 510 domain[0] = 0; 511 } 512 513 if (sa->sa_len == 0) 514 strlcpy(line, "default", sizeof(line)); 515 else switch (sa->sa_family) { 516 517 case AF_INET: 518 in = ((struct sockaddr_in *)sa)->sin_addr; 519 nml = netmask_length(nm, AF_INET); 520 521 cp = 0; 522 if (in.s_addr == INADDR_ANY || sa->sa_len < 4) { 523 if (nml == 0) 524 cp = "default"; 525 else { 526 static char notdefault[sizeof(NOTDEFSTRING)]; 527 528 snprintf(notdefault, sizeof(notdefault), 529 "0.0.0.0/%s", 530 netmask_string(nm, nml, AF_INET)); 531 cp = notdefault; 532 } 533 } 534 if (cp == 0 && !nflag) { 535 hp = gethostbyaddr((char *)&in, sizeof(struct in_addr), 536 AF_INET); 537 if (hp) { 538 char *ccp; 539 if ((ccp = strchr(hp->h_name, '.')) && 540 !strcmp(ccp + 1, domain)) 541 *ccp = '\0'; 542 cp = hp->h_name; 543 } 544 } 545 if (cp) 546 (void)strlcpy(line, cp, sizeof(line)); 547 else 548 (void)strlcpy(line, inet_ntoa(in), sizeof(line)); 549 break; 550 551 case AF_LINK: 552 return (link_ntoa((struct sockaddr_dl *)sa)); 553 554 #ifdef INET6 555 case AF_INET6: 556 { 557 struct sockaddr_in6 sin6; 558 int niflags; 559 char nihost[NI_MAXHOST]; 560 561 niflags = 0; 562 if (nflag) 563 niflags |= NI_NUMERICHOST; 564 memset(&sin6, 0, sizeof(sin6)); 565 memcpy(&sin6, sa, sa->sa_len); 566 sin6.sin6_len = sizeof(struct sockaddr_in6); 567 sin6.sin6_family = AF_INET6; 568 #ifdef __KAME__ 569 if (sa->sa_len == sizeof(struct sockaddr_in6) && 570 (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) || 571 IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr)) && 572 sin6.sin6_scope_id == 0) { 573 sin6.sin6_scope_id = 574 ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]); 575 sin6.sin6_addr.s6_addr[2] = 0; 576 sin6.sin6_addr.s6_addr[3] = 0; 577 } 578 #endif 579 nml = netmask_length(nm, AF_INET6); 580 if (IN6_IS_ADDR_UNSPECIFIED(&sin6.sin6_addr)) { 581 if (nml == 0) 582 strlcpy(line, "::", sizeof(line)); 583 else 584 /* noncontiguous never happens in ipv6 */ 585 snprintf(line, sizeof(line), "::/%d", nml); 586 } 587 else if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, 588 nihost, sizeof(nihost), NULL, 0, niflags) != 0) 589 strlcpy(line, "invalid", sizeof(line)); 590 else { 591 char *ccp; 592 if (!nflag && (ccp = strchr(nihost, '.')) && 593 strcmp(ccp + 1, domain) == 0) 594 *ccp = '\0'; 595 strlcpy(line, nihost, sizeof(line)); 596 } 597 break; 598 } 599 #endif 600 601 #ifndef SMALL 602 case AF_NS: 603 return (ns_print((struct sockaddr_ns *)sa)); 604 605 case AF_ISO: 606 (void)snprintf(line, sizeof line, "iso %s", 607 iso_ntoa(&((struct sockaddr_iso *)sa)->siso_addr)); 608 break; 609 610 case AF_APPLETALK: 611 (void)snprintf(line, sizeof(line), "atalk %d.%d", 612 ((struct sockaddr_at *)sa)->sat_addr.s_net, 613 ((struct sockaddr_at *)sa)->sat_addr.s_node); 614 break; 615 #endif /* SMALL */ 616 617 default: 618 (void)snprintf(line, sizeof line, "(%d) %s", 619 sa->sa_family, any_ntoa(sa)); 620 break; 621 622 } 623 return (line); 624 } 625 626 /* 627 * Return the name of the network whose address is given. 628 * The address is assumed to be that of a net or subnet, not a host. 629 */ 630 const char * 631 netname(struct sockaddr *sa, struct sockaddr *nm) 632 { 633 const char *cp = 0; 634 static char line[50]; 635 struct netent *np = 0; 636 u_int32_t net, mask; 637 u_int32_t i; 638 int subnetshift, nml; 639 struct in_addr in; 640 641 switch (sa->sa_family) { 642 643 case AF_INET: 644 in = ((struct sockaddr_in *)sa)->sin_addr; 645 i = ntohl(in.s_addr); 646 nml = netmask_length(nm, AF_INET); 647 if (i == 0) { 648 if (nml == 0) 649 cp = "default"; 650 else { 651 static char notdefault[sizeof(NOTDEFSTRING)]; 652 653 snprintf(notdefault, sizeof(notdefault), 654 "0.0.0.0/%s", 655 netmask_string(nm, nml, AF_INET)); 656 cp = notdefault; 657 } 658 } 659 else if (!nflag) { 660 if (IN_CLASSA(i)) { 661 mask = IN_CLASSA_NET; 662 subnetshift = 8; 663 } else if (IN_CLASSB(i)) { 664 mask = IN_CLASSB_NET; 665 subnetshift = 8; 666 } else { 667 mask = IN_CLASSC_NET; 668 subnetshift = 4; 669 } 670 /* 671 * If there are more bits than the standard mask 672 * would suggest, subnets must be in use. 673 * Guess at the subnet mask, assuming reasonable 674 * width subnet fields. 675 */ 676 while (i &~ mask) 677 mask = (int32_t)mask >> subnetshift; 678 net = i & mask; 679 while ((mask & 1) == 0) 680 mask >>= 1, net >>= 1; 681 np = getnetbyaddr(net, AF_INET); 682 if (np) 683 cp = np->n_name; 684 } 685 if (cp) 686 (void)strlcpy(line, cp, sizeof(line)); 687 else { 688 #if 0 /* XXX - This is silly... */ 689 #define C(x) ((x) & 0xff) 690 if ((i & 0xffffff) == 0) 691 (void)snprintf(line, sizeof line, "%u", 692 C(i >> 24)); 693 else if ((i & 0xffff) == 0) 694 (void)snprintf(line, sizeof line, "%u.%u", 695 C(i >> 24), C(i >> 16)); 696 else if ((i & 0xff) == 0) 697 (void)snprintf(line, sizeof line, "%u.%u.%u", 698 C(i >> 24), C(i >> 16), C(i >> 8)); 699 else 700 (void)snprintf(line, sizeof line, "%u.%u.%u.%u", 701 C(i >> 24), C(i >> 16), C(i >> 8), C(i)); 702 #undef C 703 #else /* XXX */ 704 if (nml == 0) 705 strlcpy(line, inet_ntoa(in), sizeof(line)); 706 else 707 snprintf(line, sizeof(line), "%s/%d", inet_ntoa(in), nml); 708 #endif /* XXX */ 709 } 710 break; 711 712 case AF_LINK: 713 return (link_ntoa((struct sockaddr_dl *)sa)); 714 715 #ifdef INET6 716 case AF_INET6: 717 { 718 struct sockaddr_in6 sin6; 719 int niflags; 720 721 niflags = 0; 722 if (nflag) 723 niflags |= NI_NUMERICHOST; 724 memset(&sin6, 0, sizeof(sin6)); 725 memcpy(&sin6, sa, sa->sa_len); 726 sin6.sin6_len = sizeof(struct sockaddr_in6); 727 sin6.sin6_family = AF_INET6; 728 #ifdef __KAME__ 729 if (sa->sa_len == sizeof(struct sockaddr_in6) && 730 (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) || 731 IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr)) && 732 sin6.sin6_scope_id == 0) { 733 sin6.sin6_scope_id = 734 ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]); 735 sin6.sin6_addr.s6_addr[2] = 0; 736 sin6.sin6_addr.s6_addr[3] = 0; 737 } 738 #endif 739 nml = netmask_length(nm, AF_INET6); 740 if (IN6_IS_ADDR_UNSPECIFIED(&sin6.sin6_addr)) { 741 if (nml == 0) 742 strlcpy(line, "::", sizeof(line)); 743 else 744 /* noncontiguous never happens in ipv6 */ 745 snprintf(line, sizeof(line), "::/%d", nml); 746 } 747 else if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, 748 line, sizeof(line), NULL, 0, niflags) != 0) 749 strlcpy(line, "invalid", sizeof(line)); 750 break; 751 } 752 #endif 753 754 #ifndef SMALL 755 case AF_NS: 756 return (ns_print((struct sockaddr_ns *)sa)); 757 758 case AF_ISO: 759 (void)snprintf(line, sizeof line, "iso %s", 760 iso_ntoa(&((struct sockaddr_iso *)sa)->siso_addr)); 761 break; 762 763 case AF_APPLETALK: 764 (void)snprintf(line, sizeof(line), "atalk %d.%d", 765 ((struct sockaddr_at *)sa)->sat_addr.s_net, 766 ((struct sockaddr_at *)sa)->sat_addr.s_node); 767 break; 768 #endif /* SMALL */ 769 770 default: 771 (void)snprintf(line, sizeof line, "af %d: %s", 772 sa->sa_family, any_ntoa(sa)); 773 break; 774 } 775 return (line); 776 } 777 778 static const char * 779 route_strerror(int error) 780 { 781 782 switch (error) { 783 case ESRCH: 784 return "not in table"; 785 case EBUSY: 786 return "entry in use"; 787 case ENOBUFS: 788 return "routing table overflow"; 789 default: 790 return strerror(error); 791 } 792 } 793 794 static void 795 set_metric(char *value, int key) 796 { 797 int flag = 0; 798 u_long noval, *valp = &noval; 799 800 switch (key) { 801 #define caseof(x, y, z) case x: valp = &rt_metrics.z; flag = y; break 802 caseof(K_MTU, RTV_MTU, rmx_mtu); 803 caseof(K_HOPCOUNT, RTV_HOPCOUNT, rmx_hopcount); 804 caseof(K_EXPIRE, RTV_EXPIRE, rmx_expire); 805 caseof(K_RECVPIPE, RTV_RPIPE, rmx_recvpipe); 806 caseof(K_SENDPIPE, RTV_SPIPE, rmx_sendpipe); 807 caseof(K_SSTHRESH, RTV_SSTHRESH, rmx_ssthresh); 808 caseof(K_RTT, RTV_RTT, rmx_rtt); 809 caseof(K_RTTVAR, RTV_RTTVAR, rmx_rttvar); 810 } 811 rtm_inits |= flag; 812 if (lockrest || locking) 813 rt_metrics.rmx_locks |= flag; 814 if (locking) 815 locking = 0; 816 *valp = atoi(value); 817 } 818 819 static int 820 newroute(int argc, char **argv) 821 { 822 const char *cmd, *dest = "", *gateway = ""; 823 int ishost = 0, ret, attempts, oerrno, flags = RTF_STATIC; 824 int key; 825 struct hostent *hp = 0; 826 827 cmd = argv[0]; 828 af = 0; 829 if (*cmd != 'g') 830 shutdown(sock, SHUT_RD); /* Don't want to read back our messages */ 831 while (--argc > 0) { 832 if (**(++argv)== '-') { 833 switch (key = keyword(1 + *argv)) { 834 835 case K_SA: 836 af = PF_ROUTE; 837 aflen = sizeof(union sockunion); 838 break; 839 840 #ifndef SMALL 841 case K_ATALK: 842 af = AF_APPLETALK; 843 aflen = sizeof(struct sockaddr_at); 844 break; 845 #endif 846 847 case K_INET: 848 af = AF_INET; 849 aflen = sizeof(struct sockaddr_in); 850 break; 851 852 #ifdef INET6 853 case K_INET6: 854 af = AF_INET6; 855 aflen = sizeof(struct sockaddr_in6); 856 break; 857 #endif 858 859 case K_LINK: 860 af = AF_LINK; 861 aflen = sizeof(struct sockaddr_dl); 862 break; 863 864 #ifndef SMALL 865 case K_OSI: 866 case K_ISO: 867 af = AF_ISO; 868 aflen = sizeof(struct sockaddr_iso); 869 break; 870 871 case K_X25: 872 af = AF_CCITT; 873 aflen = sizeof(struct sockaddr_x25); 874 break; 875 876 case K_XNS: 877 af = AF_NS; 878 aflen = sizeof(struct sockaddr_ns); 879 break; 880 #endif /* SMALL */ 881 882 case K_IFACE: 883 case K_INTERFACE: 884 iflag++; 885 break; 886 case K_NOSTATIC: 887 flags &= ~RTF_STATIC; 888 break; 889 case K_LLINFO: 890 flags |= RTF_LLINFO; 891 break; 892 case K_LOCK: 893 locking = 1; 894 break; 895 case K_LOCKREST: 896 lockrest = 1; 897 break; 898 case K_HOST: 899 forcehost++; 900 break; 901 case K_REJECT: 902 flags |= RTF_REJECT; 903 break; 904 case K_BLACKHOLE: 905 flags |= RTF_BLACKHOLE; 906 break; 907 case K_CLONED: 908 flags |= RTF_CLONED; 909 break; 910 case K_PROTO1: 911 flags |= RTF_PROTO1; 912 break; 913 case K_PROTO2: 914 flags |= RTF_PROTO2; 915 break; 916 case K_CLONING: 917 flags |= RTF_CLONING; 918 break; 919 case K_XRESOLVE: 920 flags |= RTF_XRESOLVE; 921 break; 922 case K_STATIC: 923 flags |= RTF_STATIC; 924 break; 925 case K_IFA: 926 if (!--argc) 927 usage(1+*argv); 928 (void)getaddr(RTA_IFA, *++argv, 0); 929 break; 930 case K_IFP: 931 if (!--argc) 932 usage(1+*argv); 933 (void)getaddr(RTA_IFP, *++argv, 0); 934 break; 935 case K_GENMASK: 936 if (!--argc) 937 usage(1+*argv); 938 (void)getaddr(RTA_GENMASK, *++argv, 0); 939 break; 940 case K_GATEWAY: 941 if (!--argc) 942 usage(1+*argv); 943 (void)getaddr(RTA_GATEWAY, *++argv, 0); 944 break; 945 case K_DST: 946 if (!--argc) 947 usage(1+*argv); 948 ishost = getaddr(RTA_DST, *++argv, &hp); 949 dest = *argv; 950 break; 951 case K_NETMASK: 952 if (!--argc) 953 usage(1+*argv); 954 (void)getaddr(RTA_NETMASK, *++argv, 0); 955 /* FALLTHROUGH */ 956 case K_NET: 957 forcenet++; 958 break; 959 case K_PREFIXLEN: 960 if (!--argc) 961 usage(1+*argv); 962 ishost = prefixlen(*++argv); 963 break; 964 case K_MTU: 965 case K_HOPCOUNT: 966 case K_EXPIRE: 967 case K_RECVPIPE: 968 case K_SENDPIPE: 969 case K_SSTHRESH: 970 case K_RTT: 971 case K_RTTVAR: 972 if (!--argc) 973 usage(1+*argv); 974 set_metric(*++argv, key); 975 break; 976 default: 977 usage(1+*argv); 978 } 979 } else { 980 if ((rtm_addrs & RTA_DST) == 0) { 981 dest = *argv; 982 ishost = getaddr(RTA_DST, *argv, &hp); 983 } else if ((rtm_addrs & RTA_GATEWAY) == 0) { 984 gateway = *argv; 985 (void)getaddr(RTA_GATEWAY, *argv, &hp); 986 } else { 987 ret = atoi(*argv); 988 989 if (ret == 0) { 990 if (strcmp(*argv, "0") == 0) { 991 if (!qflag) { 992 warnx("%s, %s", 993 "old usage of trailing 0", 994 "assuming route to if"); 995 } 996 } else 997 usage(NULL); 998 iflag = 1; 999 continue; 1000 } else if (ret > 0 && ret < 10) { 1001 if (!qflag) { 1002 warnx("%s, %s", 1003 "old usage of trailing digit", 1004 "assuming route via gateway"); 1005 } 1006 iflag = 0; 1007 continue; 1008 } 1009 (void)getaddr(RTA_NETMASK, *argv, 0); 1010 } 1011 } 1012 } 1013 if (forcehost && forcenet) 1014 errx(1, "-host and -net conflict"); 1015 else if (forcehost) 1016 ishost = 1; 1017 else if (forcenet) 1018 ishost = 0; 1019 flags |= RTF_UP; 1020 if (ishost) 1021 flags |= RTF_HOST; 1022 if (iflag == 0) 1023 flags |= RTF_GATEWAY; 1024 for (attempts = 1; ; attempts++) { 1025 errno = 0; 1026 if ((ret = rtmsg(*cmd, flags)) == 0) 1027 break; 1028 if (errno != ENETUNREACH && errno != ESRCH) 1029 break; 1030 if (af == AF_INET && *gateway && hp && hp->h_addr_list[1]) { 1031 hp->h_addr_list++; 1032 memmove(&so_gate.sin.sin_addr, hp->h_addr_list[0], 1033 hp->h_length); 1034 } else 1035 break; 1036 } 1037 if (*cmd == 'g') 1038 return (ret != 0); 1039 if (!qflag) { 1040 oerrno = errno; 1041 (void)printf("%s %s %s", cmd, ishost? "host" : "net", dest); 1042 if (*gateway) { 1043 (void)printf(": gateway %s", gateway); 1044 if (attempts > 1 && ret == 0 && af == AF_INET) 1045 (void)printf(" (%s)", 1046 inet_ntoa(so_gate.sin.sin_addr)); 1047 } 1048 if (ret == 0) 1049 (void)printf("\n"); 1050 else 1051 (void)printf(": %s\n", route_strerror(oerrno)); 1052 } 1053 return (ret != 0); 1054 } 1055 1056 static void 1057 inet_makenetandmask(u_int32_t net, struct sockaddr_in *isin) 1058 { 1059 u_int32_t addr, mask = 0; 1060 char *cp; 1061 1062 rtm_addrs |= RTA_NETMASK; 1063 if (net == 0) 1064 mask = addr = 0; 1065 else if (net < 128) { 1066 addr = net << IN_CLASSA_NSHIFT; 1067 mask = IN_CLASSA_NET; 1068 } else if (net < 192) { 1069 addr = net << IN_CLASSA_NSHIFT; 1070 mask = IN_CLASSB_NET; 1071 } else if (net < 224) { 1072 addr = net << IN_CLASSA_NSHIFT; 1073 mask = IN_CLASSC_NET; 1074 } else if (net < 256) { 1075 addr = net << IN_CLASSA_NSHIFT; 1076 mask = IN_CLASSD_NET; 1077 } else if (net < 49152) { /* 192 * 256 */ 1078 addr = net << IN_CLASSB_NSHIFT; 1079 mask = IN_CLASSB_NET; 1080 } else if (net < 57344) { /* 224 * 256 */ 1081 addr = net << IN_CLASSB_NSHIFT; 1082 mask = IN_CLASSC_NET; 1083 } else if (net < 65536) { 1084 addr = net << IN_CLASSB_NSHIFT; 1085 mask = IN_CLASSB_NET; 1086 } else if (net < 14680064L) { /* 224 * 65536 */ 1087 addr = net << IN_CLASSC_NSHIFT; 1088 mask = IN_CLASSC_NET; 1089 } else if (net < 16777216L) { 1090 addr = net << IN_CLASSC_NSHIFT; 1091 mask = IN_CLASSD_NET; 1092 } else { 1093 addr = net; 1094 if ((addr & IN_CLASSA_HOST) == 0) 1095 mask = IN_CLASSA_NET; 1096 else if ((addr & IN_CLASSB_HOST) == 0) 1097 mask = IN_CLASSB_NET; 1098 else if ((addr & IN_CLASSC_HOST) == 0) 1099 mask = IN_CLASSC_NET; 1100 else 1101 mask = -1; 1102 } 1103 isin->sin_addr.s_addr = htonl(addr); 1104 isin = &so_mask.sin; 1105 isin->sin_addr.s_addr = htonl(mask); 1106 isin->sin_len = 0; 1107 isin->sin_family = 0; 1108 cp = (char *)(&isin->sin_addr + 1); 1109 while (*--cp == 0 && cp > (char *)isin) 1110 ; 1111 isin->sin_len = 1 + cp - (char *)isin; 1112 isin->sin_family = AF_INET; 1113 } 1114 1115 #ifdef INET6 1116 /* 1117 * XXX the function may need more improvement... 1118 */ 1119 static int 1120 inet6_makenetandmask(struct sockaddr_in6 *sin6) 1121 { 1122 const char *plen; 1123 struct in6_addr in6; 1124 1125 plen = NULL; 1126 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr) && 1127 sin6->sin6_scope_id == 0) { 1128 plen = "0"; 1129 } else if ((sin6->sin6_addr.s6_addr[0] & 0xe0) == 0x20) { 1130 /* aggregatable global unicast - RFC2374 */ 1131 memset(&in6, 0, sizeof(in6)); 1132 if (!memcmp(&sin6->sin6_addr.s6_addr[8], &in6.s6_addr[8], 8)) 1133 plen = "64"; 1134 } 1135 1136 if (!plen || strcmp(plen, "128") == 0) 1137 return 1; 1138 else { 1139 rtm_addrs |= RTA_NETMASK; 1140 (void)prefixlen(plen); 1141 return 0; 1142 } 1143 } 1144 #endif 1145 1146 /* 1147 * Interpret an argument as a network address of some kind, 1148 * returning 1 if a host address, 0 if a network address. 1149 */ 1150 static int 1151 getaddr(int which, char *s, struct hostent **hpp) 1152 { 1153 sup su; 1154 struct hostent *hp; 1155 struct netent *np; 1156 u_int32_t val; 1157 char *t; 1158 int afamily; /* local copy of af so we can change it */ 1159 1160 if (af == 0) { 1161 af = AF_INET; 1162 aflen = sizeof(struct sockaddr_in); 1163 } 1164 afamily = af; 1165 rtm_addrs |= which; 1166 switch (which) { 1167 case RTA_DST: 1168 su = &so_dst; 1169 break; 1170 case RTA_GATEWAY: 1171 su = &so_gate; 1172 break; 1173 case RTA_NETMASK: 1174 su = &so_mask; 1175 break; 1176 case RTA_GENMASK: 1177 su = &so_genmask; 1178 break; 1179 case RTA_IFP: 1180 su = &so_ifp; 1181 afamily = AF_LINK; 1182 break; 1183 case RTA_IFA: 1184 su = &so_ifa; 1185 su->sa.sa_family = af; 1186 break; 1187 default: 1188 su = NULL; 1189 usage("Internal Error"); 1190 /*NOTREACHED*/ 1191 } 1192 su->sa.sa_len = aflen; 1193 su->sa.sa_family = afamily; /* cases that don't want it have left already */ 1194 if (strcmp(s, "default") == 0) { 1195 switch (which) { 1196 case RTA_DST: 1197 forcenet++; 1198 (void)getaddr(RTA_NETMASK, s, 0); 1199 break; 1200 case RTA_NETMASK: 1201 case RTA_GENMASK: 1202 su->sa.sa_len = 0; 1203 } 1204 return (0); 1205 } 1206 switch (afamily) { 1207 #ifdef INET6 1208 case AF_INET6: 1209 { 1210 struct addrinfo hints, *res; 1211 char *slash = 0; 1212 1213 if (which == RTA_DST && (slash = (strrchr(s, '/'))) != 0) 1214 *slash = '\0'; 1215 memset(&hints, 0, sizeof(hints)); 1216 hints.ai_family = afamily; /*AF_INET6*/ 1217 hints.ai_flags = AI_NUMERICHOST; 1218 hints.ai_socktype = SOCK_DGRAM; /*dummy*/ 1219 if (getaddrinfo(s, "0", &hints, &res) != 0) { 1220 hints.ai_flags = 0; 1221 if (slash) { 1222 *slash = '/'; 1223 slash = 0; 1224 } 1225 if (getaddrinfo(s, "0", &hints, &res) != 0) 1226 errx(1, "%s: bad value", s); 1227 } 1228 if (slash) 1229 *slash = '/'; 1230 if (sizeof(su->sin6) != res->ai_addrlen) 1231 errx(1, "%s: bad value", s); 1232 if (res->ai_next) 1233 errx(1, "%s: address resolved to multiple values", s); 1234 memcpy(&su->sin6, res->ai_addr, sizeof(su->sin6)); 1235 freeaddrinfo(res); 1236 #ifdef __KAME__ 1237 if ((IN6_IS_ADDR_LINKLOCAL(&su->sin6.sin6_addr) || 1238 IN6_IS_ADDR_MC_LINKLOCAL(&su->sin6.sin6_addr)) && 1239 su->sin6.sin6_scope_id) { 1240 *(u_int16_t *)&su->sin6.sin6_addr.s6_addr[2] = 1241 htons(su->sin6.sin6_scope_id); 1242 su->sin6.sin6_scope_id = 0; 1243 } 1244 #endif 1245 if (hints.ai_flags == AI_NUMERICHOST) { 1246 if (slash) 1247 return (prefixlen(slash + 1)); 1248 if (which == RTA_DST) 1249 return (inet6_makenetandmask(&su->sin6)); 1250 return (0); 1251 } else 1252 return (1); 1253 } 1254 #endif 1255 1256 #ifndef SMALL 1257 case AF_NS: 1258 if (which == RTA_DST) { 1259 struct sockaddr_ns *sms = &(so_mask.sns); 1260 memset(sms, 0, sizeof(*sms)); 1261 sms->sns_family = 0; 1262 sms->sns_len = 6; 1263 sms->sns_addr.x_net = *(union ns_net *)ns_bh; 1264 rtm_addrs |= RTA_NETMASK; 1265 } 1266 su->sns.sns_addr = ns_addr(s); 1267 return (!ns_nullhost(su->sns.sns_addr)); 1268 1269 case AF_OSI: 1270 su->siso.siso_addr = *iso_addr(s); 1271 if (which == RTA_NETMASK || which == RTA_GENMASK) { 1272 char *cp = (char *)TSEL(&su->siso); 1273 su->siso.siso_nlen = 0; 1274 do {--cp ;} while ((cp > (char *)su) && (*cp == 0)); 1275 su->siso.siso_len = 1 + cp - (char *)su; 1276 } 1277 return (1); 1278 1279 case AF_CCITT: 1280 ccitt_addr(s, &su->sx25); 1281 return (which == RTA_DST ? x25_makemask() : 1); 1282 #endif /* SMALL */ 1283 1284 case PF_ROUTE: 1285 su->sa.sa_len = sizeof(*su); 1286 sockaddr(s, &su->sa); 1287 return (1); 1288 1289 #ifndef SMALL 1290 case AF_APPLETALK: 1291 t = strchr (s, '.'); 1292 if (!t) { 1293 badataddr: 1294 errx(1, "bad address: %s", s); 1295 } 1296 val = atoi (s); 1297 if (val > 65535) 1298 goto badataddr; 1299 su->sat.sat_addr.s_net = val; 1300 val = atoi (t); 1301 if (val > 256) 1302 goto badataddr; 1303 su->sat.sat_addr.s_node = val; 1304 rtm_addrs |= RTA_NETMASK; 1305 return(forcehost || su->sat.sat_addr.s_node != 0); 1306 #endif 1307 1308 case AF_LINK: 1309 link_addr(s, &su->sdl); 1310 return (1); 1311 1312 case AF_INET: 1313 default: 1314 break; 1315 } 1316 1317 if (hpp == NULL) 1318 hpp = &hp; 1319 *hpp = NULL; 1320 1321 if ((t = strchr(s, '/')) != NULL && which == RTA_DST) { 1322 *t = '\0'; 1323 if (forcenet == 0) { 1324 if ((val = inet_addr(s)) != INADDR_NONE) { 1325 inet_makenetandmask(htonl(val), &su->sin); 1326 return prefixlen(&t[1]); 1327 } 1328 } else { 1329 if ((val = inet_network(s)) != INADDR_NONE) { 1330 inet_makenetandmask(val, &su->sin); 1331 return prefixlen(&t[1]); 1332 } 1333 } 1334 *t = '/'; 1335 } 1336 if (inet_aton(s, &su->sin.sin_addr) && 1337 (which != RTA_DST || forcenet == 0)) { 1338 val = su->sin.sin_addr.s_addr; 1339 if (inet_lnaof(su->sin.sin_addr) != INADDR_ANY) 1340 return (1); 1341 else { 1342 val = ntohl(val); 1343 goto netdone; 1344 } 1345 } 1346 if ((val = inet_network(s)) != INADDR_NONE || 1347 ((np = getnetbyname(s)) != NULL && (val = np->n_net) != 0)) { 1348 netdone: 1349 if (which == RTA_DST) 1350 inet_makenetandmask(val, &su->sin); 1351 return (0); 1352 } 1353 hp = gethostbyname(s); 1354 if (hp) { 1355 *hpp = hp; 1356 su->sin.sin_family = hp->h_addrtype; 1357 memmove(&su->sin.sin_addr, hp->h_addr, hp->h_length); 1358 return (1); 1359 } 1360 errx(1, "%s: bad value", s); 1361 /*NOTREACHED*/ 1362 } 1363 1364 int 1365 prefixlen(const char *s) 1366 { 1367 int len = atoi(s), q, r; 1368 int max; 1369 1370 switch (af) { 1371 case AF_INET: 1372 max = sizeof(struct in_addr) * 8; 1373 break; 1374 #ifdef INET6 1375 case AF_INET6: 1376 max = sizeof(struct in6_addr) * 8; 1377 break; 1378 #endif 1379 default: 1380 errx(1, "prefixlen is not supported with af %d", af); 1381 /*NOTREACHED*/ 1382 } 1383 1384 rtm_addrs |= RTA_NETMASK; 1385 if (len < -1 || len > max) 1386 errx(1, "%s: bad value", s); 1387 1388 q = len >> 3; 1389 r = len & 7; 1390 switch (af) { 1391 case AF_INET: 1392 memset(&so_mask, 0, sizeof(so_mask)); 1393 so_mask.sin.sin_family = AF_INET; 1394 so_mask.sin.sin_len = sizeof(struct sockaddr_in); 1395 so_mask.sin.sin_addr.s_addr = htonl(0xffffffff << (32 - len)); 1396 break; 1397 #ifdef INET6 1398 case AF_INET6: 1399 so_mask.sin6.sin6_family = AF_INET6; 1400 so_mask.sin6.sin6_len = sizeof(struct sockaddr_in6); 1401 memset((void *)&so_mask.sin6.sin6_addr, 0, 1402 sizeof(so_mask.sin6.sin6_addr)); 1403 if (q > 0) 1404 memset((void *)&so_mask.sin6.sin6_addr, 0xff, q); 1405 if (r > 0) 1406 *((u_char *)&so_mask.sin6.sin6_addr + q) = 1407 (0xff00 >> r) & 0xff; 1408 break; 1409 #endif 1410 } 1411 return (len == max); 1412 } 1413 1414 #ifndef SMALL 1415 int 1416 x25_makemask(void) 1417 { 1418 char *cp; 1419 1420 if ((rtm_addrs & RTA_NETMASK) == 0) { 1421 rtm_addrs |= RTA_NETMASK; 1422 for (cp = (char *)&so_mask.sx25.x25_net; 1423 cp < &so_mask.sx25.x25_opts.op_flags; cp++) 1424 *cp = -1; 1425 so_mask.sx25.x25_len = (u_char)&(((sup)0)->sx25.x25_opts); 1426 } 1427 return 0; 1428 } 1429 1430 1431 const char * 1432 ns_print(struct sockaddr_ns *sns) 1433 { 1434 struct ns_addr work; 1435 union { union ns_net net_e; u_int32_t int32_t_e; } net; 1436 u_short port; 1437 static char mybuf[50], cport[10], chost[25]; 1438 const char *host = ""; 1439 char *p; 1440 u_char *q; 1441 1442 work = sns->sns_addr; 1443 port = ntohs(work.x_port); 1444 work.x_port = 0; 1445 net.net_e = work.x_net; 1446 if (ns_nullhost(work) && net.int32_t_e == 0) { 1447 if (!port) 1448 return ("*.*"); 1449 (void)snprintf(mybuf, sizeof mybuf, "*.%XH", port); 1450 return (mybuf); 1451 } 1452 1453 if (memcmp(ns_bh, work.x_host.c_host, 6) == 0) 1454 host = "any"; 1455 else if (memcmp(ns_nullh, work.x_host.c_host, 6) == 0) 1456 host = "*"; 1457 else { 1458 q = work.x_host.c_host; 1459 (void)snprintf(chost, sizeof chost, "%02X%02X%02X%02X%02X%02XH", 1460 q[0], q[1], q[2], q[3], q[4], q[5]); 1461 for (p = chost; *p == '0' && p < chost + 12; p++) 1462 /* void */; 1463 host = p; 1464 } 1465 if (port) 1466 (void)snprintf(cport, sizeof cport, ".%XH", htons(port)); 1467 else 1468 *cport = 0; 1469 1470 (void)snprintf(mybuf, sizeof mybuf, "%XH.%s%s", 1471 (u_int32_t)ntohl(net.int32_t_e), host, cport); 1472 return (mybuf); 1473 } 1474 1475 static void 1476 interfaces(void) 1477 { 1478 size_t needed; 1479 int mib[6]; 1480 char *buf, *lim, *next; 1481 struct rt_msghdr *rtm; 1482 1483 mib[0] = CTL_NET; 1484 mib[1] = PF_ROUTE; 1485 mib[2] = 0; /* protocol */ 1486 mib[3] = 0; /* wildcard address family */ 1487 mib[4] = NET_RT_IFLIST; 1488 mib[5] = 0; /* no flags */ 1489 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 1490 err(1, "route-sysctl-estimate"); 1491 if (needed) { 1492 if ((buf = malloc(needed)) == NULL) 1493 err(1, "malloc"); 1494 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) 1495 err(1, "actual retrieval of interface table"); 1496 lim = buf + needed; 1497 for (next = buf; next < lim; next += rtm->rtm_msglen) { 1498 rtm = (struct rt_msghdr *)next; 1499 print_rtmsg(rtm, rtm->rtm_msglen); 1500 } 1501 free(buf); 1502 } 1503 } 1504 1505 static void 1506 monitor(void) 1507 { 1508 int n; 1509 char msg[2048]; 1510 1511 verbose = 1; 1512 if (debugonly) { 1513 interfaces(); 1514 exit(0); 1515 } 1516 for(;;) { 1517 time_t now; 1518 n = read(sock, msg, 2048); 1519 now = time(NULL); 1520 (void)printf("got message of size %d on %s", n, ctime(&now)); 1521 print_rtmsg((struct rt_msghdr *)msg, n); 1522 } 1523 } 1524 1525 #endif /* SMALL */ 1526 1527 1528 struct { 1529 struct rt_msghdr m_rtm; 1530 char m_space[512]; 1531 } m_rtmsg; 1532 1533 static int 1534 rtmsg(int cmd, int flags) 1535 { 1536 static int seq; 1537 int rlen; 1538 char *cp = m_rtmsg.m_space; 1539 int l; 1540 1541 #define NEXTADDR(w, u) \ 1542 if (rtm_addrs & (w)) {\ 1543 l = ROUNDUP(u.sa.sa_len); memmove(cp, &(u), l); cp += l;\ 1544 if (verbose && ! shortoutput) sodump(&(u),#u);\ 1545 } 1546 1547 errno = 0; 1548 memset(&m_rtmsg, 0, sizeof(m_rtmsg)); 1549 if (cmd == 'a') 1550 cmd = RTM_ADD; 1551 else if (cmd == 'c') 1552 cmd = RTM_CHANGE; 1553 else if (cmd == 'g') { 1554 #ifdef SMALL 1555 return (-1); 1556 #else /* SMALL */ 1557 cmd = RTM_GET; 1558 if (so_ifp.sa.sa_family == 0) { 1559 so_ifp.sa.sa_family = AF_LINK; 1560 so_ifp.sa.sa_len = sizeof(struct sockaddr_dl); 1561 rtm_addrs |= RTA_IFP; 1562 } 1563 #endif /* SMALL */ 1564 } else 1565 cmd = RTM_DELETE; 1566 #define rtm m_rtmsg.m_rtm 1567 rtm.rtm_type = cmd; 1568 rtm.rtm_flags = flags; 1569 rtm.rtm_version = RTM_VERSION; 1570 rtm.rtm_seq = ++seq; 1571 rtm.rtm_addrs = rtm_addrs; 1572 rtm.rtm_rmx = rt_metrics; 1573 rtm.rtm_inits = rtm_inits; 1574 1575 if (rtm_addrs & RTA_NETMASK) 1576 mask_addr(); 1577 NEXTADDR(RTA_DST, so_dst); 1578 NEXTADDR(RTA_GATEWAY, so_gate); 1579 NEXTADDR(RTA_NETMASK, so_mask); 1580 NEXTADDR(RTA_GENMASK, so_genmask); 1581 NEXTADDR(RTA_IFP, so_ifp); 1582 NEXTADDR(RTA_IFA, so_ifa); 1583 rtm.rtm_msglen = l = cp - (char *)&m_rtmsg; 1584 if (verbose && ! shortoutput) { 1585 if (rtm_addrs) 1586 putchar('\n'); 1587 print_rtmsg(&rtm, l); 1588 } 1589 if (debugonly) 1590 return (0); 1591 if ((rlen = write(sock, (char *)&m_rtmsg, l)) < 0) { 1592 warnx("writing to routing socket: %s", route_strerror(errno)); 1593 return (-1); 1594 } 1595 if (rlen < l) { 1596 warnx("write to routing socket, got %d for rlen", rlen); 1597 return 1; 1598 } 1599 #ifndef SMALL 1600 if (cmd == RTM_GET) { 1601 do { 1602 l = read(sock, (char *)&m_rtmsg, sizeof(m_rtmsg)); 1603 } while (l > 0 && (rtm.rtm_seq != seq || rtm.rtm_pid != pid)); 1604 if (l < 0) 1605 err(1, "read from routing socket"); 1606 else 1607 return print_getmsg(&rtm, l); 1608 } 1609 #endif /* SMALL */ 1610 #undef rtm 1611 return (0); 1612 } 1613 1614 static void 1615 mask_addr(void) 1616 { 1617 int olen = so_mask.sa.sa_len; 1618 char *cp1 = olen + (char *)&so_mask, *cp2; 1619 1620 for (so_mask.sa.sa_len = 0; cp1 > (char *)&so_mask; ) 1621 if (*--cp1 != 0) { 1622 so_mask.sa.sa_len = 1 + cp1 - (char *)&so_mask; 1623 break; 1624 } 1625 if ((rtm_addrs & RTA_DST) == 0) 1626 return; 1627 switch (so_dst.sa.sa_family) { 1628 case AF_INET: 1629 #ifdef INET6 1630 case AF_INET6: 1631 #endif 1632 #ifndef SMALL 1633 case AF_APPLETALK: 1634 case AF_NS: 1635 case AF_CCITT: 1636 #endif /* SMALL */ 1637 case 0: 1638 return; 1639 #ifndef SMALL 1640 case AF_ISO: 1641 olen = MIN(so_dst.siso.siso_nlen, 1642 MAX(so_mask.sa.sa_len - 6, 0)); 1643 break; 1644 #endif /* SMALL */ 1645 } 1646 cp1 = so_mask.sa.sa_len + 1 + (char *)&so_dst; 1647 cp2 = so_dst.sa.sa_len + 1 + (char *)&so_dst; 1648 while (cp2 > cp1) 1649 *--cp2 = 0; 1650 cp2 = so_mask.sa.sa_len + 1 + (char *)&so_mask; 1651 while (cp1 > so_dst.sa.sa_data) 1652 *--cp1 &= *--cp2; 1653 #ifndef SMALL 1654 switch (so_dst.sa.sa_family) { 1655 case AF_ISO: 1656 so_dst.siso.siso_nlen = olen; 1657 break; 1658 } 1659 #endif /* SMALL */ 1660 } 1661 1662 const char *msgtypes[] = { 1663 "", 1664 "RTM_ADD: Add Route", 1665 "RTM_DELETE: Delete Route", 1666 "RTM_CHANGE: Change Metrics or flags", 1667 "RTM_GET: Report Metrics", 1668 "RTM_LOSING: Kernel Suspects Partitioning", 1669 "RTM_REDIRECT: Told to use different route", 1670 "RTM_MISS: Lookup failed on this address", 1671 "RTM_LOCK: fix specified metrics", 1672 "RTM_OLDADD: caused by SIOCADDRT", 1673 "RTM_OLDDEL: caused by SIOCDELRT", 1674 "RTM_RESOLVE: Route created by cloning", 1675 "RTM_NEWADDR: address being added to iface", 1676 "RTM_DELADDR: address being removed from iface", 1677 "RTM_OIFINFO: iface status change (pre-1.5)", 1678 "RTM_IFINFO: iface status change", 1679 "RTM_IFANNOUNCE: iface arrival/departure", 1680 "RTM_IEEE80211: IEEE80211 wireless event", 1681 0, 1682 }; 1683 1684 const char metricnames[] = 1685 "\011pksent\010rttvar\7rtt\6ssthresh\5sendpipe\4recvpipe\3expire\2hopcount\1mtu"; 1686 const char routeflags[] = 1687 "\1UP\2GATEWAY\3HOST\4REJECT\5DYNAMIC\6MODIFIED\7DONE\010MASK_PRESENT\011CLONING\012XRESOLVE\013LLINFO\014STATIC\015BLACKHOLE\016CLONED\017PROTO2\020PROTO1"; 1688 const char ifnetflags[] = 1689 "\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5PTP\6NOTRAILERS\7RUNNING\010NOARP\011PPROMISC\012ALLMULTI\013OACTIVE\014SIMPLEX\015LINK0\016LINK1\017LINK2\020MULTICAST"; 1690 const char addrnames[] = 1691 "\1DST\2GATEWAY\3NETMASK\4GENMASK\5IFP\6IFA\7AUTHOR\010BRD"; 1692 1693 1694 #ifndef SMALL 1695 static const char * 1696 linkstate(struct if_msghdr *ifm) 1697 { 1698 static char buf[64]; 1699 1700 switch (ifm->ifm_data.ifi_link_state) { 1701 case LINK_STATE_UNKNOWN: 1702 return "carrier: unknown"; 1703 case LINK_STATE_DOWN: 1704 return "carrier: no carrier"; 1705 case LINK_STATE_UP: 1706 return "carrier: active"; 1707 default: 1708 (void)snprintf(buf, sizeof(buf), "carrier: 0x%x", 1709 ifm->ifm_data.ifi_link_state); 1710 return buf; 1711 } 1712 } 1713 #endif /* SMALL */ 1714 1715 static void 1716 print_rtmsg(struct rt_msghdr *rtm, int msglen) 1717 { 1718 struct if_msghdr *ifm; 1719 struct ifa_msghdr *ifam; 1720 struct if_announcemsghdr *ifan; 1721 union { 1722 struct ieee80211_join_event join; 1723 struct ieee80211_leave_event leave; 1724 struct ieee80211_replay_event replay; 1725 struct ieee80211_michael_event michael; 1726 } ev; 1727 size_t evlen = 0; 1728 1729 if (verbose == 0) 1730 return; 1731 if (rtm->rtm_version != RTM_VERSION) { 1732 (void)printf("routing message version %d not understood\n", 1733 rtm->rtm_version); 1734 return; 1735 } 1736 if (msgtypes[rtm->rtm_type]) 1737 (void)printf("%s: ", msgtypes[rtm->rtm_type]); 1738 else 1739 (void)printf("#%d: ", rtm->rtm_type); 1740 (void)printf("len %d, ", rtm->rtm_msglen); 1741 switch (rtm->rtm_type) { 1742 case RTM_IFINFO: 1743 ifm = (struct if_msghdr *)rtm; 1744 (void)printf("if# %d, %s, flags: ", ifm->ifm_index, 1745 #ifdef SMALL 1746 "" 1747 #else 1748 linkstate(ifm) 1749 #endif /* SMALL */ 1750 ); 1751 bprintf(stdout, ifm->ifm_flags, ifnetflags); 1752 pmsg_addrs((char *)(ifm + 1), ifm->ifm_addrs); 1753 break; 1754 case RTM_NEWADDR: 1755 case RTM_DELADDR: 1756 ifam = (struct ifa_msghdr *)rtm; 1757 (void)printf("metric %d, flags: ", ifam->ifam_metric); 1758 bprintf(stdout, ifam->ifam_flags, routeflags); 1759 pmsg_addrs((char *)(ifam + 1), ifam->ifam_addrs); 1760 break; 1761 case RTM_IEEE80211: 1762 ifan = (struct if_announcemsghdr *)rtm; 1763 (void)printf("if# %d, what: ", ifan->ifan_index); 1764 switch (ifan->ifan_what) { 1765 case RTM_IEEE80211_ASSOC: 1766 printf("associate"); 1767 break; 1768 case RTM_IEEE80211_REASSOC: 1769 printf("re-associate"); 1770 break; 1771 case RTM_IEEE80211_DISASSOC: 1772 printf("disassociate"); 1773 break; 1774 case RTM_IEEE80211_SCAN: 1775 printf("scan complete"); 1776 break; 1777 case RTM_IEEE80211_JOIN: 1778 evlen = sizeof(ev.join); 1779 printf("join"); 1780 break; 1781 case RTM_IEEE80211_LEAVE: 1782 evlen = sizeof(ev.leave); 1783 printf("leave"); 1784 break; 1785 case RTM_IEEE80211_MICHAEL: 1786 evlen = sizeof(ev.michael); 1787 printf("michael"); 1788 break; 1789 case RTM_IEEE80211_REPLAY: 1790 evlen = sizeof(ev.replay); 1791 printf("replay"); 1792 break; 1793 default: 1794 evlen = 0; 1795 printf("#%d", ifan->ifan_what); 1796 break; 1797 } 1798 if (sizeof(*ifan) + evlen > ifan->ifan_msglen) { 1799 printf(" (truncated)\n"); 1800 break; 1801 } 1802 (void)memcpy(&ev, (ifan + 1), evlen); 1803 switch (ifan->ifan_what) { 1804 case RTM_IEEE80211_JOIN: 1805 case RTM_IEEE80211_LEAVE: 1806 printf(" mac %" PRIETHER, 1807 PRIETHER_ARGS(ev.join.iev_addr)); 1808 break; 1809 case RTM_IEEE80211_REPLAY: 1810 case RTM_IEEE80211_MICHAEL: 1811 printf(" src %" PRIETHER " dst %" PRIETHER 1812 " cipher %" PRIu8 " keyix %" PRIu8, 1813 PRIETHER_ARGS(ev.replay.iev_src), 1814 PRIETHER_ARGS(ev.replay.iev_dst), 1815 ev.replay.iev_cipher, 1816 ev.replay.iev_keyix); 1817 if (ifan->ifan_what == RTM_IEEE80211_REPLAY) { 1818 printf(" key rsc %#" PRIx64 1819 " frame rsc %#" PRIx64, 1820 ev.replay.iev_keyrsc, ev.replay.iev_rsc); 1821 } 1822 break; 1823 default: 1824 break; 1825 } 1826 printf("\n"); 1827 break; 1828 case RTM_IFANNOUNCE: 1829 ifan = (struct if_announcemsghdr *)rtm; 1830 (void)printf("if# %d, what: ", ifan->ifan_index); 1831 switch (ifan->ifan_what) { 1832 case IFAN_ARRIVAL: 1833 printf("arrival"); 1834 break; 1835 case IFAN_DEPARTURE: 1836 printf("departure"); 1837 break; 1838 default: 1839 printf("#%d", ifan->ifan_what); 1840 break; 1841 } 1842 printf("\n"); 1843 break; 1844 default: 1845 (void)printf("pid %d, seq %d, errno %d, flags: ", 1846 rtm->rtm_pid, rtm->rtm_seq, rtm->rtm_errno); 1847 bprintf(stdout, rtm->rtm_flags, routeflags); 1848 pmsg_common(rtm); 1849 } 1850 } 1851 1852 #ifndef SMALL 1853 static int 1854 print_getmsg(struct rt_msghdr *rtm, int msglen) 1855 { 1856 struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL, *ifa = NULL; 1857 struct sockaddr_dl *ifp = NULL; 1858 struct sockaddr *sa; 1859 char *cp; 1860 int i; 1861 1862 if (! shortoutput) 1863 (void)printf(" route to: %s\n", 1864 routename((struct sockaddr *) &so_dst, NULL, RTF_HOST)); 1865 if (rtm->rtm_version != RTM_VERSION) { 1866 warnx("routing message version %d not understood", 1867 rtm->rtm_version); 1868 return 1; 1869 } 1870 if (rtm->rtm_msglen > msglen) { 1871 warnx("message length mismatch, in packet %d, returned %d", 1872 rtm->rtm_msglen, msglen); 1873 } 1874 if (rtm->rtm_errno) { 1875 warnx("RTM_GET: %s (errno %d)", 1876 strerror(rtm->rtm_errno), rtm->rtm_errno); 1877 return 1; 1878 } 1879 cp = ((char *)(rtm + 1)); 1880 if (rtm->rtm_addrs) 1881 for (i = 1; i; i <<= 1) 1882 if (i & rtm->rtm_addrs) { 1883 sa = (struct sockaddr *)cp; 1884 switch (i) { 1885 case RTA_DST: 1886 dst = sa; 1887 break; 1888 case RTA_GATEWAY: 1889 gate = sa; 1890 break; 1891 case RTA_NETMASK: 1892 mask = sa; 1893 break; 1894 case RTA_IFP: 1895 if (sa->sa_family == AF_LINK && 1896 ((struct sockaddr_dl *)sa)->sdl_nlen) 1897 ifp = (struct sockaddr_dl *)sa; 1898 break; 1899 case RTA_IFA: 1900 ifa = sa; 1901 break; 1902 } 1903 ADVANCE(cp, sa); 1904 } 1905 if (dst && mask) 1906 mask->sa_family = dst->sa_family; /* XXX */ 1907 if (dst && ! shortoutput) 1908 (void)printf("destination: %s\n", 1909 routename(dst, mask, RTF_HOST)); 1910 if (mask && ! shortoutput) { 1911 int savenflag = nflag; 1912 1913 nflag = 1; 1914 (void)printf(" mask: %s\n", 1915 routename(mask, NULL, RTF_HOST)); 1916 nflag = savenflag; 1917 } 1918 if (gate && rtm->rtm_flags & RTF_GATEWAY) { 1919 const char *name; 1920 1921 name = routename(gate, NULL, RTF_HOST); 1922 if (shortoutput) { 1923 if (*name == '\0') 1924 return (1); 1925 (void)printf("%s\n", name); 1926 } else 1927 (void)printf(" gateway: %s\n", name); 1928 } 1929 if (ifa && ! shortoutput) 1930 (void)printf(" local addr: %s\n", 1931 routename(ifa, NULL, RTF_HOST)); 1932 if (ifp && ! shortoutput) 1933 (void)printf(" interface: %.*s\n", 1934 ifp->sdl_nlen, ifp->sdl_data); 1935 if (! shortoutput) { 1936 (void)printf(" flags: "); 1937 bprintf(stdout, rtm->rtm_flags, routeflags); 1938 } 1939 1940 #define lock(f) ((rtm->rtm_rmx.rmx_locks & __CONCAT(RTV_,f)) ? 'L' : ' ') 1941 #define msec(u) (((u) + 500) / 1000) /* usec to msec */ 1942 1943 if (! shortoutput) { 1944 (void)printf("\n%s\n", "\ 1945 recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire"); 1946 printf("%8ld%c ", rtm->rtm_rmx.rmx_recvpipe, lock(RPIPE)); 1947 printf("%8ld%c ", rtm->rtm_rmx.rmx_sendpipe, lock(SPIPE)); 1948 printf("%8ld%c ", rtm->rtm_rmx.rmx_ssthresh, lock(SSTHRESH)); 1949 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rtt), lock(RTT)); 1950 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rttvar), lock(RTTVAR)); 1951 printf("%8ld%c ", rtm->rtm_rmx.rmx_hopcount, lock(HOPCOUNT)); 1952 printf("%8ld%c ", rtm->rtm_rmx.rmx_mtu, lock(MTU)); 1953 if (rtm->rtm_rmx.rmx_expire) 1954 rtm->rtm_rmx.rmx_expire -= time(0); 1955 printf("%8ld%c\n", rtm->rtm_rmx.rmx_expire, lock(EXPIRE)); 1956 } 1957 #undef lock 1958 #undef msec 1959 #define RTA_IGN (RTA_DST|RTA_GATEWAY|RTA_NETMASK|RTA_IFP|RTA_IFA|RTA_BRD) 1960 1961 if (shortoutput) 1962 return ((rtm->rtm_addrs & RTF_GATEWAY) == 0); 1963 else if (verbose) 1964 pmsg_common(rtm); 1965 else if (rtm->rtm_addrs &~ RTA_IGN) { 1966 (void)printf("sockaddrs: "); 1967 bprintf(stdout, rtm->rtm_addrs, addrnames); 1968 putchar('\n'); 1969 } 1970 return 0; 1971 #undef RTA_IGN 1972 } 1973 #endif /* SMALL */ 1974 1975 void 1976 pmsg_common(struct rt_msghdr *rtm) 1977 { 1978 (void)printf("\nlocks: "); 1979 bprintf(stdout, rtm->rtm_rmx.rmx_locks, metricnames); 1980 (void)printf(" inits: "); 1981 bprintf(stdout, rtm->rtm_inits, metricnames); 1982 pmsg_addrs(((char *)(rtm + 1)), rtm->rtm_addrs); 1983 } 1984 1985 static void 1986 pmsg_addrs(char *cp, int addrs) 1987 { 1988 struct sockaddr *sa[RTAX_MAX]; 1989 int i, nmf; 1990 1991 if (addrs != 0) { 1992 (void)printf("\nsockaddrs: "); 1993 bprintf(stdout, addrs, addrnames); 1994 (void)putchar('\n'); 1995 nmf = -1; 1996 for (i = 0; i < RTAX_MAX; i++) { 1997 if ((1 << i) & addrs) { 1998 sa[i] = (struct sockaddr *)cp; 1999 if ((i == RTAX_DST || i == RTAX_IFA) && 2000 nmf == -1) 2001 nmf = sa[i]->sa_family; 2002 ADVANCE(cp, sa[i]); 2003 } else 2004 sa[i] = NULL; 2005 } 2006 for (i = 0; i < RTAX_MAX; i++) { 2007 if (sa[i] != NULL) { 2008 if (i == RTAX_NETMASK && sa[i]->sa_len) 2009 (void)printf(" %s", 2010 netmask_string(sa[i], -1, nmf)); 2011 else 2012 (void)printf(" %s", 2013 routename(sa[i], NULL, RTF_HOST)); 2014 } 2015 } 2016 } 2017 (void)putchar('\n'); 2018 (void)fflush(stdout); 2019 } 2020 2021 static void 2022 bprintf(FILE *fp, int b, const char *f) 2023 { 2024 int i; 2025 int gotsome = 0; 2026 const uint8_t *s = (const uint8_t *)f; 2027 2028 if (b == 0) 2029 return; 2030 while ((i = *s++) != 0) { 2031 if (b & (1 << (i-1))) { 2032 if (gotsome == 0) 2033 i = '<'; 2034 else 2035 i = ','; 2036 (void)putc(i, fp); 2037 gotsome = 1; 2038 for (; (i = *s) > 32; s++) 2039 (void)putc(i, fp); 2040 } else 2041 while (*s > 32) 2042 s++; 2043 } 2044 if (gotsome) 2045 (void)putc('>', fp); 2046 } 2047 2048 int 2049 keyword(char *cp) 2050 { 2051 struct keytab *kt = keywords; 2052 2053 while (kt->kt_cp && strcmp(kt->kt_cp, cp)) 2054 kt++; 2055 return kt->kt_i; 2056 } 2057 2058 static void 2059 sodump(sup su, const char *which) 2060 { 2061 #ifdef INET6 2062 char ntop_buf[NI_MAXHOST]; 2063 #endif 2064 2065 switch (su->sa.sa_family) { 2066 case AF_INET: 2067 (void)printf("%s: inet %s; ", 2068 which, inet_ntoa(su->sin.sin_addr)); 2069 break; 2070 #ifndef SMALL 2071 case AF_APPLETALK: 2072 (void)printf("%s: atalk %d.%d; ", 2073 which, su->sat.sat_addr.s_net, su->sat.sat_addr.s_node); 2074 break; 2075 #endif 2076 case AF_LINK: 2077 (void)printf("%s: link %s; ", 2078 which, link_ntoa(&su->sdl)); 2079 break; 2080 #ifdef INET6 2081 case AF_INET6: 2082 (void)printf("%s: inet6 %s; ", 2083 which, inet_ntop(AF_INET6, &su->sin6.sin6_addr, 2084 ntop_buf, sizeof(ntop_buf))); 2085 break; 2086 #endif 2087 #ifndef SMALL 2088 case AF_ISO: 2089 (void)printf("%s: iso %s; ", 2090 which, iso_ntoa(&su->siso.siso_addr)); 2091 break; 2092 case AF_NS: 2093 (void)printf("%s: xns %s; ", 2094 which, ns_ntoa(su->sns.sns_addr)); 2095 break; 2096 #endif /* SMALL */ 2097 default: 2098 (void)printf("%s: (%d) %s; ", 2099 which, su->sa.sa_family, any_ntoa(&su->sa)); 2100 } 2101 (void)fflush(stdout); 2102 } 2103 2104 /* States*/ 2105 #define VIRGIN 0 2106 #define GOTONE 1 2107 #define GOTTWO 2 2108 /* Inputs */ 2109 #define DIGIT (4*0) 2110 #define END (4*1) 2111 #define DELIM (4*2) 2112 2113 static void 2114 sockaddr(char *addr, struct sockaddr *sa) 2115 { 2116 char *cp = (char *)sa; 2117 int size = sa->sa_len; 2118 char *cplim = cp + size; 2119 int byte = 0, state = VIRGIN, new = 0; 2120 2121 (void)memset(cp, 0, size); 2122 cp++; 2123 do { 2124 if ((*addr >= '0') && (*addr <= '9')) { 2125 new = *addr - '0'; 2126 } else if ((*addr >= 'a') && (*addr <= 'f')) { 2127 new = *addr - 'a' + 10; 2128 } else if ((*addr >= 'A') && (*addr <= 'F')) { 2129 new = *addr - 'A' + 10; 2130 } else if (*addr == 0) 2131 state |= END; 2132 else 2133 state |= DELIM; 2134 addr++; 2135 switch (state /* | INPUT */) { 2136 case GOTTWO | DIGIT: 2137 *cp++ = byte; /*FALLTHROUGH*/ 2138 case VIRGIN | DIGIT: 2139 state = GOTONE; byte = new; continue; 2140 case GOTONE | DIGIT: 2141 state = GOTTWO; byte = new + (byte << 4); continue; 2142 default: /* | DELIM */ 2143 state = VIRGIN; *cp++ = byte; byte = 0; continue; 2144 case GOTONE | END: 2145 case GOTTWO | END: 2146 *cp++ = byte; /* FALLTHROUGH */ 2147 case VIRGIN | END: 2148 break; 2149 } 2150 break; 2151 } while (cp < cplim); 2152 sa->sa_len = cp - (char *)sa; 2153 } 2154
Indexes created Sun Sep 28 16:09:52 GMT 2025